Refereed Journal Publications

1. P.G. Singerman, S.M. O'Rourke,R.M. Narayanan, A. Ray, and M.Tangaswamy, "Symbolic Dynamics for Radar Target Maneuver Detection with High Data Rates="title"> IEEE Transactions on Aerrospace and Electronic Systems (AES), in press. doi:
2. H. Alqahtani and A. Ray, "Convolutional Neural Network for Risk Assessment in Polycrystalline Alloy Structures via Ultrasonic Testing," Fatigue & Fracture of Engineering Materials & Structures (FFEM) , December 2023, pages 1-11. doi:
3. X. Chen and A. Ray, "Data Fusion and Pattern Classification in Dynamical Systems via Symbolic Time Series Analysis," Journal of Dynamic Systems, Measurement, and Control, vol. 145, no. 9, p. 094502 (5 pages) doi: 10.1115/1.4062830
4. S. Dharmadhikari, R. Riddhiman, A. Ray and A. Basak, "A Unified Mixed Deep Neural Network for Fatigue Damage Detection in Components with Different Stress Concentrations," Applied Sciences: An MDPI Journal, vol. 13, 1542, pp. 1-16 January 2023. doi: 10.3390/app13031542
5. H. Alqahtani and A. Ray, "Feature Selection of Surface Topography Parameters for Fatigue Damage Detection Using Pearson Correlation Method and Neural Network Analysis," Fatigue & Fracture of Engineering Materials & Structures (FFEM) , January 2023, pages 1-11. doi: 10.1111/ffe.13963
6. N.F. Ghalyan, A. Ray and W.K. Jenkins, "A Concise Tutorial on Functional Analysis for Applications to Signal Processing," Sci: An MDPI Journal (ISSN 2413-4155), vol. 40, no. 4, October 2022. doi: 10.3390/sci4040040
7. S. Saab Jr., S. Phoha, M. Zhu and A. Ray, "An Adaptive Polyak Heavy-Ball Method," Machine Learning, vol. 111, July 2022, pp. 3245-3277. doi: 10.1007/s10994-022-06215-7
8. X. Chen and A. Ray, "Deep Reinforcement Learning Control of a Boiling Water Reactor," IEEE Transactions on Nuclear Science, vol. 69, no. 8, August 2022, pp. 1820-1832. doi: 10.1109/TNS.2022.3187662
9. S. Dharmadhikari, R. Riddhiman, C. Bhattacharya, A. Ray and A. Basak, "Assessment of Transfer Learning Capabilities for Fatigue Damage Classification and Detection in Aluminum Specimens with Different Notch Geometries," Metals: An MDPI Journal (ISSN 2413-4155), vol. 12, no. 1849, October 2022. doi: 10.3390/met12111849
10. H. Alqahtani and A. Ray, "Feature Extraction and Neural Network-based Fatigue Damage Detection and Classification," Neural Computing and Applications , vol. 34, no. 23 August 2022, pp 21253–21273. doi: 10.1007/s00521-022-07609-3
11. S. Saab Jr., K. Saab, S. Phoha, M. Zhu and A. Ray, "A Multivariate Adaptive Gradient Algorithm with Reduced Tuning Efforts Learning Systems," Neural Networks, vol. 152, May 2022, pp. 499-509. doi: 10.1016/j.neunet.2022.016
12. H. Alqahtani and A. Ray, "Fatigue damage detection and risk assessment via neural network modeling of ultrasonic signals," Fatigue & Fracture of Engineering Materials & Structures , vo.45, no. 6. February 2022, pp. 1587-1604. doi: 10.1111/ffe.13678
13. X. Chen, A. Ray, and F. Zhang, "Point-kinetics neutron noise modeling and analysis via probabilistic finite state automata," Nuclear Engineering and Design , vol. 388, 2022, p. 111628. doi: 10.1016/j.nucengdes.2021.111628
14. N.F. Ghalyan, C. Bhattacharya, I.F. Ghalyan, and A. Ray, "Spectral invariants of ergodic symbolic systems for pattern recognition and anomaly detection," Philosophical Transactions A of the Royal Society (ISSN 1364-503X, vol. 380, no. 2229, 8 August 2022. doi: 10.1098/rsta.2021.0196
15. S. Ghosh, R. Wardell, E. Farnandez, J.S. Kapat, S. Mondal and A. Ray, "Topology Optimization and Experimental Validation of an Additively Manufactured U-bend Channel," ASME Journal of Fluid Engineering , vol.144, July 2022, p. 071206 (15 pages). doi: 10.1115/1.4052928
16. I.F. Ghalyan, N.F. Ghalyan and A. Ray, "Optimal Window-Symbolic Time Series Analysis for Pattern Classification and Anomaly Detection," IEEE Transactions on Industrial Informatics, vol.18, no. 4, April 2022, pp. 2614-2621. doi: 10.1109/TII.2021.3089199
17. S. Saab Jr., Y. Fu, A. Ray and M.Hauser, "A Dynamically Stabilized Recurrent Neural Network," Neural Processing Letters, vol.54. no. 2, April 2022, pp. 1195-1202. doi: 10.1007/s11063-021-10676-7
18. C. Bhattacharya and A. Ray, "Thresholdless Classification of Chaotic Dynamics and Combustion Instability via Probabilistic Finite State Automata," Mechanical Systems and Signal Processing, vol. 164, March 2022, p. 108213 (18 pages). doi: 10.1016/j.ymssp.2021.108213
19. A. Ray, "On State-space Modeling and Signal Localization in Dynamical Systems," ASME Letters in Dynamic Systems and Control, vol. 2, January 2022, p. 011006 (5 pages) doi: 10.1115/1.4051142
20. S. Dharmadhikari, C. Bhattacharya, A. Ray and A. Basak, "A Data-Driven Framework for Early-Stage Fatigue Damage Detection in Aluminum Alloys Using Ultrasonic Sensors," Machines: An MDPI Journal , vol. 9, no. 211, December 2021. doi: 10.3390/machines9100211
21. C.Bhattacharya and A. Ray, "Transfer Learning for Detection of Combustion Instability via Symbolic Time Series Analysis," ASME Journal of Dynamic Systems, Measurement, and Control, vol. 143, no. 10, October 2021, 101002 (11 pages) doi: 10.1115/1.4050847
22. S. Mondal, A. Chattopadhyay, A. Mukhopadhyay and A. Ray, "Transfer Learning of Deep Neural Networks for Predicting Thermoacoustic Instabilities in Combustion Systems,"Energy and AI, vol. 5, September 2021, p. doi: 10.1016/j.egyai.2021.100085
23. A. Ray, "Homeostasis and Homeorhesis: Sustaining Order and Normalcy in Human-Engineered Complex Systems," International Journal on Engineering Technologies and Informatics, vol. 2, no. 3- 2021, June 2021, p. 63-65 doi: 10.51626/ijeti.2021.02.00014
24. C. Bhattacharya, R. Saha, A. Mukhopadhyay and A. Ray, "Identification of Long-term Behavior of Natural Circulation Loops: A Thresholdless Approach from an Initial Response," Sci: An MDPI Journal (ISSN 2413-4155), vol. 14, no. 3, March 2021, doi: 10.3390/sci3010014
25. C. Bhattacharya, S. Dharmadhikari, A. Basak and A. Ray, "Early Detection of Fatigue Crack Damage in Ductile Materials: A Projection-based Probabilistic Finite State Automata Approach," ASME Letters in Dynamic Systems and Control, vol. 1, October 2021, p. 041003 (5 pages). doi: 10.1115/1.4050183
26. S. Ghosh, S. Mondal, E. Farnandez, J.S. Kapat, and A. Ray, "Parametric Shape Optimization of Pin-Fin Arrays Using a Surrogate Model based Bayesian Method," AIAA Journal of Thermophysics and Heat Transfer , vol. 35, no. 2, April-June 2021, pp. 245-255. doi: 10.2514/1.T6094
27. C. Bhattacharya, J. O'Connor and A. Ray, "Data-driven Early Detection of Thermoacoustic Instability in a Multi-nozzle Combustor," Combustion Science and Technology, vol. 180, September 2020. doi: 10.1080/00102202.2020.1820495
28. C. Bhattacharya, S. De, A. Mukhopadhyay, S. Sen, and A. Ray, "Detection and Classification of Lean Blow-Out and Thermoacoustic Instability in Turbulent Combustors," Appled Thermal Engineering, vol. 180, August 2020, p. 115808. doi: 10.1016/j.applthermaleng.2020.115808
29. S. Mondal, S. De, A. Mukhopadhyay, S. Sen, and A. Ray, "Early Prediction of Lean Blowout from Chemiluminescence Time Series Data," Combustion Science and Technology, vol. 179, August 2020. doi: 10.1080/00102202.2020.1804380
30. H. Alqahtani and A. Ray, "Forecasting and Detection of Fatigue Cracks in Polycrystalline Alloys with Ultrasonic Testing via Discrete Wavelet Transform," ASME Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems , vol. 4, August 2021, p. 031003 (16 pages). doi: 10.1115/1.4049732
31. S. Saab, Jr., M.Hauser, A. Ray and S.Saab, "Multivariable Non-adaptive Controller Design," IEEE Transactions on Industrial Electronics, vol. 68, no. 7, July 2021, pp. 6181-6191. doi: 10.1109/TIE.2020.2998753
32. H. Alqahtani, S. Bharadwaj, and A. Ray, "Classifcation of Fatigue Crack Damage in Polycrystalline Alloy Structures Using Convolutional Neural Networks," Engineering Failure Analysis, vol. 119, July 2021, p. 104908 (18 pages). doi: 10.1016/j.engfailanal.2020.104908
33. N.F. Ghalyan and A. Ray, "Measure Invariance of Ergodic Symbolic Systems for Low-Delay Detection of Anomalous Events," Mechanical Systems and Signal Processing, vol. 159, April 2021, p. 107746 (19 pages). doi: 10.1016/j.ymssp.2021.107746
34. C. Bhattacharya and A. Ray, "Data-driven Detection and Classification of Regimes in Chaotic Systems via Hidden Markov Modeling," ASME Letters in Dynamic Systems and Control, vol. 1, no. 2, April 2021, p. 021009 (5 pages) doi: 10.1115/1.4047817
35. S. Dharmadhikari,, E. Keller, A. Ray, and A.Basak, "A Dual-Imaging Framework for Simultaneous Measurements of Short and Long Crack Initiation and Propagation in Metallic Materials," International Journal of Fatigue , vol. 142, January 2021, p. 105922 (10 pages). doi: 10.1016/j.ijfatigue.2020.105922
36. D.J. Miller, N.F.Ghalyan, S. Mondal and A. Ray, "HMM Conditional-Likelihood Based Change Detection with Strict Delay Tolerance," Mechanical Systems and Signal Processing, vol. 147, January 2021, pp. 10719 (1 t0 17). doi: 10.1016/j.ymssp.2020.107109
37. H. Alqahtani and A. Ray, "Neural Network-Based Automated Assessmentof Fatigue Damage in Mechanical Structures," Machines: An MDPI Journal, vol. 85, no. 8, December 2020, p. 8040085 (19 pages). doi:10.3390/machines8040085
38. C. Bhattacharya and A. Ray, "Online Discovery and Classification of Operational Regimes from an Ensemble of Time Series Data," ASME Journal of Dynamic Systems, Measurement, and Control, vol. 142, November 2020, pp. 114501 (1 to 7). doi: 10.1115/1.4047449
39. C. Bhattacharya, S. Mondal, A. Ray and A. Mukhopadhyay, "Reduced-order Modeling of Thermoacoustic Instabilities in a Two-heater Rijke Tube," Combustion Theory and Modeling, vol. 24, no. 3, June 2020, pp. 530-548. doi: 10.1080/13647830.2020.1714080
40. N.F. Ghalyan and A. Ray, "Symbolic Time Series Analysis for Anomaly Detection in Measure-Invariant Ergodic Systems, " ASME Journal of Dynamic Systems, Measurement, and Control, vol. 142, June 2020, pp. 061003 (1 to 11). doi: 10.1115/1.4046156
41. S. Mondal, D. Gwynn, A. Ray and A. Basak, "Investigation of Melt Pool Geometry Control in Additive Manufacturing using Hybrid Modeling," Metals: An MDPI Journal, vol. 10, no. 5, May 2020, pp. 1-24. doi:10.3390/met10050683
42. X. Chen and A. Ray, "On Singular Perturbation of Neutron Point Kinetics in the Dynamic Model of a PWR Nuclear Power Plant," Sci: An MDPI Journal (ISSN 2413-4155), vol. 30, no. 2, April 2020, pp. 1-10. doi:10.3390/sci2020030
43. W. Liu, J. Rostami, A. Ray and D. Elsworth, "Statistical Analysis of the Capabilities of Various Pattern Recognition Algorithms for Fracture Detection Based on Monitoring Drilling Parameters," Rock Mechanics and Rock Engineering, vol. 53, January 2020, pp. 2265-2278. doi: 10.1007/s00603-019-01965-8
44. N.F. Ghalyan, I.F. Ghalyan and A. Ray, "Modeling of Microscope Images for Early detection of Fatigue Cracks in Structural Materials," The International Journal of Advanced Manufacturing Technology, Springer Nature, vol. 104, November 2019, pp. 3899-3913. doi: 10.1007/s00170-019-04108-z
45. N.F. Ghalyan, S. Mondal, D.J. Miller and A. Ray, "Hidden Markov Modeling-based Decision-making Using Short-length Sensor Time Series," ASME Journal of Dynamic Systems, Measurement, and Control, vol. 141, no. 4, October 2019, pp. 104502 (1 o 6). doi: 10.1115/1.4043428
46. S. Mondal, N.F. Ghalyan, A. Ray and A. Mukhopadhyay, "Early Detection of Thermoacoustic Instabilities Using Hidden Markov Models," Combustion Science and Technology, vol. 191, no. 8, August 2019, pp. 1309-1336. doi: 10.1080/00102202.2018.1523900
47. Y. Fu, D.K. Jha, Z. Zhang, Z. Yuan and A. Ray, "Neural Network-based Learning from Demonstration of an Autonomous Ground Robot," Machines: An MDPI Journal, vol. 24, no. 7, July 2019, pp. 1-14. doi: 10.3390/machines7020024
48. N. Virani, D.K. Jha, A. Ray and S. Phoha, "Sequential Hypothesis Tests for Streaming Data via Symbolic Time-series Analysis," Engineering Applications of Artificial Intelligence, vol. 81, no. 2, March 2019, pp. 234-246. doi: 10.1016/j.engappai.2019.02.015
49. M. Hauser, S. Gunn, S. Saab and A. Ray, "State Space Representations of Deep Neural Networks," Neural Computation, vol. 31, No. 3, March 2019, pp. 538-554. doi: 10.1162/ neco_a_01165.
50. P. Chattopadhyay, S. Mondal, A. Ray and A. Mukhopadhyay, "Dynamic Data-driven Combustor Design for Mitigation of Thermoacoustic Instabilities," ASME Journal of Dynamic Systems, Measurement, and Control, vol. 141, no. 1, January 2019, pp. 014501 (1 to 7). doi: 10.1115/1.4040210
51. W. Liu, S.Saab, J. Rostami and A. Ray, "Improving the Capability of Joint Detection for Optimized Ground Design by Using Wavelet Analysis," International Journal of Oil, Gas and Coal Technology (IJOGCT), vol. 20, no. 1, January 2019, pp. 97-112. doi: 10.1504/IJOGCT.2018.10011332
52. N. Virani, S.Phoha and A. Ray, "Learning from Multiple Imperfect Instructors in Sensor Networks," IEEE Transactions on Neural Networks and Learning Systems, vol. 29, no. 10, October 2018, pp. 5166-5172. doi: 10.1109/TNNLS.2018.2791898
53. F.R. Beck, N. Virani, L. Mohanta, F.A. Sohag, A. Ray and F-B. Cheung, "Study of Vapor-Film Dynamics and Heat Transfer through an Image Processing Technique," International Journal of Heat and Mass Transfer, vol. 125, October 2018, pp. 1310-1320. doi: 10.1016/j.ijheatmasstransfer.2018.04.091
54. S. Xiong, Y. Fu and A. Ray, "Bayesian Nonparametric Regression Modeling of Panel Data for Sequential Classification," IEEE Transactions on Neural Networks and Learning Systems, vol. 29, no. 9, September 2018, pp. 4128-4139. doi: 10.1109/TNNLS.2017.2752005
55. N.F. Ghalyan, D.J. Miller and A. Ray, "A Locally Optimal Algorithm for Estimating a Generating Partition from an Observed Time Series and its Application to Anomaly Detection," Neural Computation, vol. 30, September 2018, pp. 2500-2529. doi: 10.1162/neco_a_01101
56. M. Hauser, Y. Fu, S.Phoha and A. Ray, "Neural Probabilistic Forecasting of Symbolic Sequences with Long Short-Term Memory," ASME Journal of Dynamic Systems, Measurement, and Control, vol. 140, August 2018, pp. 084502 (1 to 7). doi:10.1115/1.4039281
57. C-S. Jao, F.R. Beck, N. Virani, F-B. Cheung and A. Ray, "Analysis of Filtered Thermal-fluid Video Data from Downward Facing Boiling Experiments," ASME Journal of Dynamic Systems, Measurement, and Control, vol. 149, July 2018, p. 074502 (1 to 7). doi: 10.1115/1.4039470
58. D.K. Jha, N. Virani, J. Reimann, A. Srivastav and A. Ray, "Symbolic Analysis-based Reduced Order Markov Modeling of Time Series Data," Signal Processing, vol. 149, 2018, pp. 68-81. doi: 10.1016/j.sigpro.2018.03.004
59. Y. Li, D.K. Jha, A. Ray and T.A. Wettergren, "Information-theoretic Performance Analysis of Sensor Networks via Markov Modeling of Time Series Data," IEEE Transactions on Cybernetics, vol. 48, no. 6, June 2018, pp. 1898-1909. doi: 10.1109/TCYB.2017.2717974
60. S. Xiong, Y. Fu and A. Ray, "Bayesian Nonparametric Modeling of Categorical Data for Information Fusion and Causal Inference," entropy: An MDPI Journal, vol. 20, no. 5, May 2018, p. 396 (1-22). doi:10.3390/e19040148.
61. N. Virani, D.K. Jha, Z. Yuan, I. Sekhawat and A. Ray, "Imitation of Demonstrations using Bayesian Filtering with Nonparametric Data-Driven Models," ASME Journal of Dynamic Systems, Measurement, and Control, vol. 140, March 2018, pp. 030906 (1 to 9). doi:10.1115/1.4037782
62. S. Xiong, S. Mondal and A. Ray, "Detection of Thermoacoustic Instabilities via Nonparametric Bayesian Markov Modeling of Time Series Data," ASME Journal of Dynamic Systems, Measurement, and Control, vol. 140, no. 2, Frebruary 2018, p. 024501 (1 to 7). doi: 10.1115/1.4037288
63. M. Hauser and A. Ray, "Principles of Riemannian Geometry in Neural Networks," Neural Information Processing Systems (NIPS), December 2017, pp. 2804-2813, Long Beach, CA, USA.
64. W. Liu, J. Rostami, D. Elsworth and A. Ray, "Application of Composite Indices for Improving Joint Detection Capabilities of Instrumented Roof Bolt Drills in Underground Mining and Construction," Rock Mechanics and Rock Engineering, November 2017. doi: 10.1007/s00603-017-1359-z
65. P. Chattopadhyay, S. Mondal, C. Bhattacharya, A. Mukhopadhyay and A. Ray, "Dynamic Data-Driven Design of Lean Premixed Combustors for Thermoacoustically Stable Operations," ASME Journal of Machine Design (Special Issue on Data-Driven Design (D3)), vol. 139, no. 11, November 2017, p. 111419 (1-10). doi: 10.1115/1.4037307
66. Y. Li and A. Ray, "Unsupervised Symbolization of Signal Time Series for Extraction of the Embedded Information," entropy: An MDPI Journal, vol. 19, no. 4, April 2017, p. 148 (1-20). doi:10.3390/e19040148.
67. Y. Li, D.K. Jha, A. Ray and T.A. Wettergren, "Information Fusion of Passive Sensors for Detection of Moving Targets in Dynamic Environments, " IEEE Transactions on Cybernetics, vol. 47, no. 1, January 2017, pp. 93-104. doi: 10.1109/TCYB.2015.2508024
68. D.K. Jha, A. Srivastav and A. Ray, "Temporal Learning in Video Data Using Deep Learning and Gaussian Processes," International Journal of Prognostics and Health Management, ISSN 2153-2648, Vol 7 (Special Issue Big Data and Analytics) 022, pages: 11, 2016.
69. S. Sarkar, S.R. Chakravarthy, V. Ramanan and A. Ray, "Dynamic Data-driven Prediction of Instability in a Swirl-stabilized Combustor," International Journal of Spray and Combustion Dynamics, vol. 8, no. 4, December 2016, pp. 235-253. doi: DOI: 10.1177/1756827716642091
70. Y. Li, P. Chattopadhyay, S. Xiong, A. Ray and C.D. Rahn, "Dynamic data-driven and model-based recursive analysis for estimation of battery state-of-charge," Journal of Applied Energy,, vol. 184, December 2016, pp. 266-275. doi: 10.1016/j.apenergy.2016.10.025
71. S. Sarkar, P. Chattopadhyay and A. Ray, "Symbolization of Dynamic Data-driven Systems for Signal Representation," Signal, Image, and Video Processing, vol. 10, no. 8, August 2016, pp. 1535-1542. doi: 10.1007/s11760-016-0967-5
72. D.K. Jha, P. Chattopadhyay, S. Sarkar and A. Ray, "Path Planning in GPS-denied Environments via Collective Intelligence of Distributed Sensor Network," International Journal of Control, vol. 89, no. 5, May 2016, pp. 984-999. doi: 10.1080/00207179.2015.1110754
73. S. Bahrampour, N. Nasrabadi, A. Ray and K. Jenkins, "Multimodal Task-Driven Dictionary Learning for Image Classification," IEEE Transactions on Image Processing, vol. 25, no. 1, January 2016, pp. 24-38. doi: 10.1109/TIP.2015.2496275
74. S. Bahrampour, J. Rostami, A. Ray, A. Naeimipour and C. Craig, "Ground characterization and roof mapping: Online sensor signal-based change detection," International Journal of Mining Science and Technology, vol. 25, no. 6, November 2015, pp. 905-913. doi:10.1016/j.ijmst.2015.09.005
75. K. Jerath, A. Ray, S. Brennan and V. Gayah, "Dynamic prediction of vehicle cluster distribution: A statistical mechanics-inspired method," IEEE Transactions on Intelligent Transportation Systems,, vol. 16, No. 5, October 2015, pp. 2424-2434. doi: 10.1109/TITS.2015.2409798
76. Y. Li, P. Chattopadhyay and A. Ray, "Dynamic Data-Driven Identification of Battery State-of-Charge via Symbolic Analysis of Input-Output Pairs, " Journal of Applied Energy,, vol. 155, October 2015, pp. 778-790. doi: 10.1016/j.apenergy.2015.06.040
77. D.K. Jha, T.A. Wettergren, A. Ray and K. Mukherjee, "Topology Optimization for Energy Management in Underwater Sensor Networks, " International Journal of Control, vol. 88, no. 9, September 2015, pp. 1775-1788. doi: 10.1080/00207179.2015.1017006.
78. S. Sarkar, A. Ray, A. Mukhopadhyay and S. Sen, "Dynamic Data-driven Prediction of Lean Blowout in a Swirl-stabilized Combustor," International Journal of Spray and Combustion Dynamics, vol. 7, No. 3, September 2015, pp. 209-242. DOI: http://dx.doi.org/10.1260/1756-8277.7.3.175
79. Y. Li, P. Chattopadhyay, A. Ray and C. Rahn, "Identification of the Battery State-of-Health Parameter from Input-Output Pairs of Time Series Data ," Journal of Power Sources, vol. 285, April 2015, pp. 235-246. doi: 10.1016/j.jpowsour.2015.03.068
80. D.K. Jha, Y. Li, T.A. Wettergren and A. Ray, "Robot Path Planning in Uncertain Environments: A Language Measure-theoretic Approach," ASME Journal of Dynamic Systems, Measurement and Control, Vol. 137, March 2015, pp. 034503-1 to 034503-7. doi:10.1115/1.4027876.
81. S. Sarkar, S. Sarkar, N. Virani, A. Ray and M. Yasar "Sensor Fusion for Fault Detection & Classification in Distributed Physical Processes," Frontiers in Robotics and AI, vol. 1, Article 16, December 2014, pp. 1-9. doi: 10.3389/frobt.2014.00016
82. Y. Li, Z. Shen, A. Ray and C. Rahn, "Real-time Estimation of Lead-acid Battery Parameters: A Dynamic Data-driven Approach," Journal of Power Sources, vol. 268, December 2014, pp. 758-764. doi: 10.1016/j.jpowsour.2014.06.099
83. K. Mukherjee and A. Ray, "State Splitting & Merging in Probabilistic Finite State Automata for Signal Representation and Analysis," Signal Processing, Vol. 104, November 2014, pp. 105-119. doi: 10.1016/j.sigpro.2014.03.045
84. S. Bahrampour, N.M. Nasrabadi, A. Ray and K.W. Jenkins, " Quality-based Multimodal Classification Using Tree-Structured Sparsity," Computer Vision and Pattern Recognition (CVPR), June 2014, Columbus, OH, USA.
85. S. Phoha, N. Virani, P. Chattopadhyay, S. Sarkar, B. Smith and A. Ray, "Context-aware Dynamic Data-driven Pattern Classification," Procedia Computer Science, Vol. 29, June 2014, pp. 1324-1333. doi: 10.1016/j.procs.2014.05.119
86. X. Jin and A. Ray, "Navigation of Autonomous Vehicles for Oil Spill Cleaning in Dynamic and Uncertain Environments," International Journal of Control, Vol. 87, no.4, April 2014, pp. 787-801. doi: 10.1080/00207179.2013.858829
87. S. Sonti, E. Keller, J. Horn and A. Ray, "Stability Monitoring of Rotorcraft Systems: A Dynamic Data-Driven Approach," ASME Journal of Dynamic Systems, Measurement and Control, Vol. 136, March 2014, pp. 24505-1 to 24505-6. doi: 10.1115/1.4025988
88. N. Virani, S. Marcks, S. Sarkar, K. Mukherjee, A. Ray and S.Phoha, "Dynamic Data-driven Sensor Array Fusion for Target Detection and Classification," Procedia Computer Science, Vol. 18, 2013, pp. 2046-2055. doi: 10.1016/j.procs.2013.05.374
89. S. Bahrampour, A. Ray, S. Sarkar, T. Damarla and N.M. Nasrabadi, "Performance Comparison of Feature Extraction Algorithms for Target Detection and Classification," Pattern Recognition Letters, Vol. 34, no. 16, December 2013, pp. 2126-2134. doi: 10.1016/j.patrec.2013.06.021
90. S. Sarkar, S. Sarkar, K. Mukherjee, A. Ray and S. Srivastav, " Multi-sensor information fusion for fault detection in aircraft gas turbine engines," IMechE Journal Aerospace Engineering, Vol. 227, no. 12, December 2013, pp. 1988-2001. doi:10.1177/0954410012468391
91. A. Ray, S. Phoha and S. Sarkar, "Behavior Prediction for Decision & Control in Cognitive Autonomous Systems," New Mathematics and Natural Computation: Special Issue on Engineering of the Mind, Cognitive Science and Robotics, Vol. 9, No. 3, November 2013, pp. 263-271. doi: 10.1142/S1793005713002403
92. Y. Wen, A. Ray and S. Phoha, "Hilbert Space Formulation of Symbolic Systems for Signal Representation and Analysis," Signal Processing, Vol. 93, no. 9, September 2013, pp. 2594-2611. doi: 10.1016/j.sigpro.2013.02.002
93. A. Mukhopadhyay, R.R. Chaudhuri, T. Paul, S. Sen and A. Ray, " Prediction of Lean Blow-out in Gas Turbine Combustors using Symbolic Time Series Analysis," Journal of Propulsion and Power (AIAA), Vol. 29, No.4, July-August 2013, pp. 950-960. doi: 10.2514/1.B34711
94. S. Sarkar, K. Mukherjee and A. Ray, "Distributed Decision Propagation in Mobile-agent Proximity Networks," International Journal of Control, Vol. 86, No.6, June 2013, pp. 1118-1130. doi: 10.1115/1.4007699
95. D.K. Jha, A. Ray, K. Mukherjee and S. Chakraborty, "Classification of Two-phase Flow Patterns by Ultrasonic Sensing," ASME Journal of Dynamic Systems, Measurement and Control, Vol. 135, March 2013, pp. 24503-1 to 24503-5. doi: 10.1115/1.4007555
96. S. Sarkar, K. Mukherjee, S. Sarkar and A. Ray, "Symbolic Dynamic Analysis of Transient Time Series for Fault Detection in Gas Turbine Engines," ASME Journal of Dynamic Systems, Measurement and Control, Vol. 135, January 2013, pp. 14506-1 to 14506-6. doi: 10.1115/1.4007699
97. S. Chakraborty, E.E. Keller, A. Ray and J. Mayer, "Detection and estimation of demagnetization faults in Permanent Magnet Synchronous Motors," Electric Power Systems Research, Vol. 96, no. 1, January 2013, pp. 225-236. doi: 10.1016/j.epsr.2012.11.005
98. Y. Wen, K. Mukherjee and A. Ray, "Adaptive Pattern Classification for Symbolic Dynamic Systems," Signal Processing, Vol. 93, no. 1, January 2013, pp. 252-260. doi: 10.1016/j.sigpro.2012.08.002
99. Y. Wen, A. Ray and Q. Du, "A Variance-estimation-based Stopping Rule for Symbolic Dynamic Filtering," Signal, Image, and Video Processing, Vol. 7, No. 1, January 2013, pp. 189-195. doi:: 10.1007/s11760-011-0215-y
100. S. Sarkar, K. Mukherjee, A. Ray, S. Srivastav and T.A. Wettergren, "Statistical Mechanics-Inspired Modeling of Heterogeneous Packet Transmission in Communication Networks," IEEE Transactions on Systems, Man, and Cybernetics, Part B, Vol. 42, No. 4, August 2012, pp. 1083-1094. doi: 10.1109/TSMCB.2012.2186611
101. D. Singh, S. Gupta and A. Ray, "Online Recursive Estimation of Remaining Life Using Ultrasonic Measurements," Structural Health Monitoring, Vol. 11. no.4, August 2012, pp. 413-421. doi: 10.1177/1475921711432003
102. Y. Wen and A. Ray, "Vector Space Formulation of Probabilistic Finite State Automata," Journal of Computer and System Sciences, Vol. 78. no.7, July 2012, pp.1127-1141. doi: 10.1016/j.jcss.2012.02.001
103. X. Jin, S. Sarkar, A. Ray, S. Gupta and T. Damarla, "Target Detection and Classification Using Seismic and PIR Sensors," IEEE Sensors Journal, Vol. 12. no.6, June 2012, pp.1709-1718. doi: 10.1109/JSEN.2011.2177257
104. G. Mallapragada, A. Ray and X. Jin, "Symbolic Dynamic Filtering and Language Measure for Behavior Identification of Mobile Robots," IEEE Transactions on Systems, Man, and Cybernetics, Part B, Vol. 42, No. 3, June 2012, pp. 647-659. doi:10.1109/TSMCB.2011.2172419
105. D.K. Jha, D. Singh, S. Gupta and A. Ray, "Fractal Analysis of Crack Initiation in Polycrystalline Alloys Using Surface Interferometry," European Physics Letters, Vol. 98, No. 4, May 2012, pp. 44006 (6 pages). doi: 10.1209/0295-5075/98/44006
106. S. Chakraborty, S. Sarkar and A. Ray, "Symbolic Identification for Fault Detection in Aircraft Gas Turbine Engines," Proceedings of the I Mech E Part G: Journal of Aerospace Engineering, Vol. 226, no. 4, April 2012, pp. 422-436. doi:10.1177/0954410011409980
107. S. Phoha, G. Mallapragada, Y. Wen, D. Bien and A. Ray, "Designing a Fusion-driven Sensor Network to Selectively Track Mobile Targets," Parallel Processing Letters, ISSN 0129-6264 , Vol. 22, No. 1, March 2012, pp. 1250001. doi: 10.1142/S0129626412500016
108. S. Sarkar, K. Mukherjee, X. Jin, D. Singh and A. Ray, "Optimization of Symbolic Feature Extraction for Pattern Classification," Signal Processing, Vol. 92, No. 3, March 2012, pp. 625-635. doi:10.1016/j.sigpro.2011.08.013
109. P. Adenis, Y. Wen and A. Ray, "An inner product space on irreducible and synchronizable probabilistic finite state automata," Mathematics of Control, Signals, and Systems (MCSS), Vol. 23, No. 1, January 2012, pp. 281-310. doi:10.1007/s00498-012-0075-1
     
110. S. Sarkar, X. Jin and A. Ray, "Data-driven Fault Detection in Aircraft Engines with Noisy Sensor Measurements," ASME Journal of Engineering for Gas Turbines and Power, Vol. 133, No. 8, August 2011, pp. 081602 (10 pages). doi: 10.1115/1.4002877
     
111. X. Jin, S. Gupta, K. Mukherjee and A. Ray, "Wavelet-based Feature Extraction Using Probabilistic Finite State Automata for Pattern Classification," Pattern Recognition, Vol. 44, No. 7, July 2011, pp. 1343-1356. doi: 10.1016/j.patcog.2010.12.003
     
112. K. Mukherjee, S. Gupta, A. Ray and T.A. Wettergren, "Statistical Mechanics-inspired Optimization of Sensor Field Configuration for Detection of Mobile Targets," IEEE Transactions on Systems, Man, and Cybernetics, Part B, Vol. 41, No. 3, June 2011, pp. 783-791. doi: 10.1109/TSMCB.2010.2092763
113. K.S. Balagani, V.V. Phoha, A. Ray and S. Phoha, "On the Discriminability of Keystroke Feature Vectors Used in Fixed Text Keystroke Authentication," Pattern Recognition Letters, Vol. 32, No. 7, May 2011, pp. 1070-1080. doi: 10.1016/j.patrec.2011.02.014
114. K. Mukherjee, S. Gupta, A. Ray and S. Phoha, "Symbolic Analysis of Sonar Data for Underwater Target Detection," IEEE Journal of Oceanic Engineering,Vol. 36, No. 2, April 2011, pp. 219-230. doi: 10.1109/JOE.2011.2122590
115. D. Bein, Y. Wen, S. Phoha, B. Madan and A. Ray, "Distributed Network Control for Mobile Multi-Modal Wireless Sensor Networks," Journal of Parallel and Distributed Computing, Vol. 71, No. 3, March 2011, pp. 460-470. doi: 10.1016/j.jpdc.2010.08.016
116. X. Jin, Y. Guo, S. Sarkar, A. Ray and R.M. Edwards, "Anomaly Detection in Nuclear Power Plants via Symbolic Dynamic Filtering," IEEE Transactions on Nuclear Science, Vol. 58, No.1, February 2011, pp.277-288. doi: 10.1109/TNS.2010.2088138
117. K. Mukherjee, A. Ray, T.A. Wettergren, S. Gupta and S. Phoha, "Real-time Adaptation of Decision Thresholds in Sensor Networks for Detection of Moving Targets," Automatica, Vol. 47, No. 1, January 2011, pp. 185-191. doi:10.1016/j.automatica.2010.10.031
118. S. Chakraborty, A. Ray, A. Subbu and E. Keller, "Analytic Signal Space Partitioning and Symbolic Dynamic Filtering for Degradation Monitoring of Electric Motors," Signal, Image, and Video Processing, Vol. 4, No. 4, November 2010, pp. 399-403. doi: 10.1007/s11760-009-0133-4
119. Y. Wen and A. Ray, "A Stopping Rule for Symbolic Dynamic Filtering," Applied Mathematics Letters, Vol. 23, Issue 9, September 2010, pp. 1125-1128. doi: 10.1016/j.aml.2010.04.048
120. A. Subbu, A. Srivastav, A. Ray and E. Keller, "Symbolic Dynamic Filtering for Image Analysis: Theory and Experimental Validation," Signal, Image, and Video Processing, Volume 4, No. 3, August/September 2010, pp. 319-329. doi: 10.1007/s11760-009-0122-7
121. X. Jin, R.M. Edwards and A. Ray, "Feature Extraction for Data-Driven Fault Detection in Nuclear Power Plants," Transactions Am. Nuc. Soc., Vol. 102, June 2010, pp. 163-164.
122. X. Jin, A. Ray and R.M. Edwards, "Integrated Robust and Resilient Control of Nuclear Power Plants for Operational Safety and High Performance," IEEE Transactions on Nuclear Science, Vol. 57, No.2, Part 2, April 2010, pp. 807-817. doi: 10.1109/TNS.2010.2042071
123. D.S. Singh, S. Gupta and A. Ray, "Symbolic Dynamic Analysis of Surface Deformation during Fatigue Crack Initiation," Measurement Science and Technology, Vol. 21, No. 3, March 2010, pp. 043003 (7pp). doi: 10.1088/0957-0233/21/4/043003
124. I. Chattopadhyay and A. Ray, "Optimal Control of Infinite Horizon Partially Observable Decision Processes Modeled as Generators of Probabilistic Regular Languages," International Journal of Control, Vol. 83, No. 3, March 2010, pp. 457-483. doi: 10.1080/00207170903193458
125. A. Srivastav and A. Ray, "Self-organization of Sensor Networks for Detection of Pervasive Faults," Signal, Image, and Video Processing, Vol. 4, No. 1, February 2010, pp. 99-104. doi: 10.1007/s11760-008-0101-4
126. X. Jin, K. Mukherjee, S. Gupta, A. Ray, S. Phoha and T. Damarla, "Asynchrnous Data-driven Classification of Weapon Systems," Measurement Science and Technology, Vol. 20, No. 12, December 2009, pp. 123001 (6 pages). doi: 10.1088/0957-0233/20/12/123001
127. I. Chattopadhyay and A. Ray, "Supervised Self-organization of Homogeneous Swarms Using Projections of Markov Chains," IEEE Transactions on Systems, Man, and Cybernetics, Part B, Vol. 39, No. 6, December 2009, pp. 1505-1515. doi: 10.1109/TSMCB.2009.2020173
     
128. X. Jin, R.M. Edwards and A. Ray, "Integrated Scheme for Anomaly Identification and Automatic Control of Nuclear Power Plants," Transactions Am. Nuc. Soc., Vol. 101, November 2009, pp. 315-316.
129. X. Jin, A. Ray and R.M. Edwards, "Redundant Sensor Calibration for In-situ Monitoring and Control of Nuclear Power Plants Power Plants," Transactions Am. Nuc. Soc., Vol. 101, November 2009, pp. 307-308.
130. S.Gupta, A. Ray and S. Phoha, "Generalized Ising Model for Dynamic Adaptation in Autonomous Systems," European Physics Letters (EPL), Vol. 87, July 2009, p. 10009 doi: 10.1209/0295-5075/87/10009
131. A. Srivastav, A. Ray and S. Phoha, "Adaptive Sensor Activity Scheduling in Distributed Sensor Networks: A Statistical Mechanics Approach," International Journal of Distributed Sensor Networks, Vol. 5, Issue 3, July 2009, pp. 242-261. doi: 10.1080/15501320802473250
132. D.S. Singh, S. Gupta and A. Ray, "In-situ Fatigue Damage Monitoring using Symbolic Dynamic Filtering of Ultrasonic Signals," Proceedings of the I Mech E Part G: Journal of Aerospace Engineering, Vol. 223, No. 6, 2009, pp. 643-653.. doi: 10.1243/09544100JAERO530
133. S. Sarkar, K. Mukherjee and A. Ray, "Generalization of Hilbert Transform for Symbolic Analysis of Noisy Signals," Signal Processing, Vol.89, Issue 6, June 2009, pp. 1245-1251. doi: 10.1016/j.sigpro.2008.12.009
134. C. Rao, K. Mukherjee, S. Sarkar and A. Ray, "Statistical Estimation of Multiple Parameters via Symbolic Dynamic Filtering," Signal Processing, in Vol. 89, Issue 6, June 2009, pp. 981-988. doi: 10.1016/j.sigpro.2008.11.018.
135. I.Chattopadhyay, G.Mallapragada and A. Ray, "v*: A Robot Path Planning Algorithm based on Renormalized Measure of Probabilistic Regular Languages," International Journal of Control, Vol. 82, no. 5, May 2009, pp. 849-867. doi: 10.1080/00207170802343196
136. C. Rao, A. Ray, S. Sarkar and M. Yasar,"Review and Comparative Evaluation of Symbolic Dynamic Filtering for Detection of Anomaly Patterns," Signal, Image, and Video Processing, Vol. 3, No. 2, May 2009, pp.101-114. doi: 10.1007/s11760-008-0061-8
137. S. Sarkar, C. Rao and A. Ray, "Statistical Estimation of Multiple Faults in Aircraft Gas Turbine Engines," Proceedings of the I Mech E Part G: Journal of Aerospace Engineering, Vol. 223, No. 4, 2009, pp. 415-424. doi: 10.1243/09544100JAERO481
138. S. Gupta and A. Ray, "Statistical Mechanics of Complex Systems for Pattern Identification," Journal ofStatistical Physics, Vol. 134, Issue 2, 2009, pp. 337-364. doi: 10.1007/s10955-009-9679-3
139. A. Srivastav, A. Ray and S. Gupta, "An Information-theoretic Measure for Anomaly Detection in Complex Dynamical Systems," Mechanical Systems and Signal Processing, Vol. 23, No. 2, February 2009, pp. 358-371. doi: 10.1007/s11760-008-0061-8
140. S. Chakraborty, E. Keller, J.Talley, A. Srivastav, A. Ray and S. Kim, "Void Fraction Measurement in Two-phase Processes via Symbolic Dynamic Filtering of Ultrasonic Signals," Measurement Science and Technology, Vol. 20, No. 2, February 2009. doi: 10.1088/0957-0233/20/2/023001
141. R. Samsi, A. Ray and J. Mayer, "Early Detection of Stator Voltage Imbalance in Three-Phase Induction Motors," Electric Power Systems Research, Vol. 79, January 2009, pp. 239-245. doi: 10.1016/j.epsr.2008.06.004
     
142. G. Mallapragada,I. Chattopadhyay and A. Ray, "Autonomous Robot Navigation Using Optimal Control of Probabilistic Regular Languages," International Journal of Control, Vol. 82, No. 1, January 2009, pp. 13-26. doi: 10.1080/00207170801947096
143. S. Chakraborty, S. Gupta, A. Ray and A. Mukhopadhyay, "Data-Driven Fault Detection and Estimation in Thermal Pulse Combustors," Proceedings of the I Mech E Part G: Journal of Aerospace Engineering, Vol. 222, No. 8, December 2008, pp. 1097-1108. doi: 10.1243/09544100JAERO432
144. S. Gupta, D. Singh and A. Ray, "Statistical Pattern Analysis of Ultrasonic Signals for Fatigue Damage Detection in Mechanical Structures," NDT & E International, Vol. 41, No. 7, November 2008, pp. 491-500. doi: 10.1016/j.ndteint.2008.06.001
     
145. S. Chakraborty, S. Sarkar, S. Gupta and A. Ray, "Damage Monitoring of Refractory Wall in a Generic Entrained-Bed Slagging Gasification System," Proceedingsof the I Mech E Part A: Journal of Power and Energy, Vol.222, No. 8, October 2008, pp. 791-807. doi: 10.1243/09576509JPE638
146. I. Chattopadhyay and A. Ray, "Generalised Projections in Finite State Automata & Decidability of State Determinacy," International Journal of Control, Vol.81, No.10, October 2008, pp. 1626-1644. doi: 10.1080/00207170801888837
     
147. K.S. Bhambare, S. Gupta, M. M. Mench and A. Ray, "A Carbon Monoxide Sensor in Polymer Electrolyte Fuel Cells based on Symbolic Dynamic Filtering," Sensors & Actuators, Part B, Vol. 134, September 2008, pp. 803-815. doi: 10.1016/j.snb.2008.06.057
148. G. Mallapragada, I. Chattopadhyay and A. Ray,"Automated Behavior Recognition in Mobile Robots Using Symbolic Dynamic Filtering," Proceedings of the I Mech E Part I: Journal of Systems & Control Engineering, Vol. 222, No. 6, September 2008, pp. 409-424. doi: 10.1243/09544100JAERO297
149. M. Yasar, A. Ray and J. Horn, "A Comprehensive Control Strategy for Integrated Flight/Propulsion Systems," Proceedings of the I Mech E Part G: Journal of Aerospace Engineering, Vol. 222 (G6), No. 6, September 2008, pp. 843-859. doi: 10.1243/09544100JAERO297
150. R. Samsi and A. Ray, "Intelligent Sensing in Inverter-fed Induction Motors: Wavelet-based Symbolic Dynamic Analysis," Sensors & Transducers Journal, Vol. 94, No. 7, July 2008, pp. 150-160. ISSN 1726-5479
     
151. S. Sarkar, M. Yasar, S. Gupta, A. Ray and K. Mukherjee, "Fault Detection and Isolation in Aircraft Gas Turbine Engines: Part II -- Validation on a SimulationTest Bed," Proceedings of the I Mech E Part G: Journal of Aerospace Engineering, Vol. 222, No. 3, May 2008, pp. 319-330. doi: 10.1243/09544100JAERO312
152. S. Gupta, A. Ray, S. Sarkar and M.Yasar, "Fault Detection and Isolation in Aircraft Gas Turbine Engines: Part I -- Underlying Concept," Proceedings of the I Mech E Part G: Journal of Aerospace Engineering, Vol. 222, No. 3, May 2008, pp. 307-318. doi: 10.1243/09544100JAERO311
     
153. I. Chattopadhyay and A. Ray, "Structural Transformations of Probabilistic Finite State Machines," International Journal of Control, Vol.81, No. 5, May 2008, pp. 820-835. doi: 10.1080/00207170701704746
     
154. A. Ray, "Book Review: Mathematical Methods in Robust Control of Linear Stochastic Systems (New York: Springer Science + Business Media, 2006)," IEEE Transactions on Automatic Control, Vol. 53, No. 3, April 2008, pp. 862-864. doi: 10.1109/TAC.2008.916253
     
155. A. Khatkhate, S. Gupta, A. Ray and R. Patankar, "Anomaly Detection in Flexible Mechanical Couplings via Symbolic Time Series Analysis," Journal of Sound and Vibration, Vol. 311, Issues 3-5, April 2008, pp. 608-622. doi: 10.1016/j.jsv.2007.09.046
     
156. A. Subbu and A. Ray, "Space Partitioning via Hilbert Transform for Symbolic Time Series Analysis," Applied Physics Letters, Vol. 92, No. 08, February 2008, pp. 084107-1 (3 pages) doi: 10.1063/1.2883958
     
157. V. Rajagopalan, S. Chakraborty and A. Ray, "Estimation of Slowly-Varying Parameters in Nonlinear Systems via Symbolic Dynamic Filtering," Signal Processing, Vol. 89, No. 2, February 2008, pp. 339-348. doi:10.1016/j.sigpro.2007.08.007
     
158. R. Patankar, V. Rajagopalan and A. Ray, "Failure Precursor Detection in Complex Electrical Systems Using Symbolic Dynamics," International Journal of Signal and Imaging Systems Engineering, Vol.1, No. 1, 2008, pp. 68-77.
159. S. Gupta and A. Ray, "Pattern Identification Using Lattice Spin Systems: A Thermodynamic Formalism," Applied Physics Letters, Vol. 91, No. 19, November 2007, pp. 194105-1 (3 pages) doi: 10.1063/1.2807686
     
160. V. Rajagopalan, A. Ray, R. Samsi and J. Mayer, "Pattern Identification in Dynamical Systems via Symbolic Time Series Analysis," Pattern Recognition, Vol. 40, No. 11, November 2007, pp. 2897-2907. doi: 10.1016/j.patcog.2007.03.007
     
161. I. Chattopadhyay and A. Ray, "Language-Measure-Theoretic Optimal Control of Probabilistic Finite-State Systems," International Journal of Control, Vol. 80, No. 8, August 2007, pp. 1271-1290. doi: 10.1080/00207170701286322
     
162. S. Gupta, A. Ray and E. Keller, "Online Fatigue Damage Monitoring by Ultrasonic Measurements: A Symbolic Dynamics Approach," Internattional Journal of Fatigue, Vol. 29, No. 6, June 2007, pp. 1100-1114. doi: 10.1016/j.ijfatigue.2006.09.011
     
163. I. Chattopadhyay and A. Ray, "Generalized Language Measure Families of Probabilistic Finite State Systems," International Journal of Control, Vol. 80, No. 5, May 2007, pp. 789-799. doi: 10.1080/00207170601188784
     
164. S. Gupta and A. Ray, "Real-Time Fatigue Life Estimation in Mechanical Structures," Measurement Science and Technology, Vol. 18, May 2007, pp. 1947-1957. doi: 10.1016/j.apm.2005.12.009
     
165. A. Khatkhate, A. Ray and E. Keller, "Modelling and System Identification of an Experimental Apparatus for Anomaly Detection in Mechanical Systems," Applied Mathematical Modelling, Vol. 31, No. 4, April 2007, pp. 734-748. doi: 10.1016/j.apm.2005.12.009
     
166. S. Gupta, A. Ray and E. Keller, "Symbolic Time Series Analysis of Ultrasonic Data for Early Detection of Fatigue Damage," Mechanical Systems and Signal Processing,Vol. 21, No. 2, February 2007, pp.866-884. doi: 10.1016/j.ymssp.2005.08.022
     
167. M. Yasar and A. Ray, "Hierarchical Control of Aircraft Propulsion Systems: Discrete Event Supervisor Approach," Control Engineering Practice, Vol. 15, No. 2, February 2007, pp. 149-162. doi: 10.1016/j.conengprac.2006.05.011
     
168. V. Rajagopalan and A. Ray, "Symbolic Time Series Analysis via Wavelet-based Partitioning," Signal Processing, Vol. 86, No. 11, November 2006, pp. 3309-3320. doi:10.1016/j.sigpro.2006.01.014
     
169. S. Gupta, A. Khatkhate, A. Ray and E.Keller, "Identification of Statistical Patterns in Complex Systems via Symbolic Time Series Analysis," ISA Transactions, Vol. 45, No. 4, October 2006, pp. 477-490.
170. I. Chattopadhyay and A. Ray, "Renormalized Measure of Regular Languages," International Journal of Control, Vol.79, No. 9, September 2006, pp. 1107-1117. doi: 10.1080/00207170600801429
     
171. I. Chattopadhyay and A. Ray, "A Language Measure for Partially Observed Discrete Event Systems," International Journal of Control, Vol. 79, No. 9, September 2006, pp. 1074-1086.
172. S. Gupta, A. Ray and A. Mukhopadhyay, "Anomaly Detection in Thermal Pulse Combustors," Proceedings of the I Mech E, Part I: Journal of Systems & Control Engineering, Volume 220, No. 5, August 2006, pp. 339-351(13). doi: 10.1243/09596518JSCE256
     
173. A. Khatkhate, A. Ray, E.Keller, S. Gupta and S. Chin, "Symbolic Time Series Analysis for Anomaly Detection in Mechanical Systems," IEEE/ASME Transactions on Mechatronics, Vol. 11, No. 4, August 2006, pp. 439-447.
174. S. Gupta, A. Ray and E. Keller, "Symbolic Time Series Analysis of Ultrasonic Signals for Fatigue Damage Monitoring in Polycrystalline Alloys," Measurement Science and Technology, Vo. 17, No. 7, July 2006, pp. 1963-1973.
175. V. Rajagopalan and A. Ray, "Wavelet Space Partitioning for Symbolic Time Series Analysis," Chinese Physics Letters, Vol. 23, No. 7, July 2006, pp. 1951-1954.
176. D.K. Tolani, A. Ray and J.F. Horn, "Integrated Decision and Control of Human-Engineered Complex Systems," International Journal of General Systems, Vol. 35, No. 3, June 2006, pp. 275-294.
177. D.K. Tolani, M. Yasar, A. Ray and V. Yang, "Anomaly Detection in Aircraft Gas Turbine Engines," AIAA Journal of Aerospace Computing, Information, and Communication, Vol.3, No. 2, 2006, pp. 44-51.
178. N. Scafetta, A. Ray and B.J. West, "Correlation Regimes in Fluctuations of Fatigue Crack Growth," Physica A, Vol. 59, No. 3, 2006, pp. 1-23.
179. I. Chattopadhyay and A. Ray, "A Complex Measure for Linear Grammars," Demonstratio Mathematica, Vol. 38, No. 3, 2005, pp. 761-775.
180. S. Chin, A. Ray and V. Rajagopalan, "Symbolic Time Series Analysis for Anomaly Detection: A Comparative Evaluation," Signal Processing, Vol. 85, No. 9, September 2005, pp. 1859-1868.
181. A. Ray, "Signed Real Measure of Regular languages for Discrete Event Supervisory Control," International Journal of Control, Vol. 78, No. 12, August 2005, pp. 949-967. doi: 10.1080/00207170500202447
     
182. C. Lagoa, J. Fu and A. Ray, "Robust Optimal Control of Regular Languages," Automatica, Vol. 41, No. 8, August 2005, pp. 1339-1445.
183. D K Tolani, C M Lagoa, Q Wang and A Ray, "Probabilistic Robust Control of Rotorcraft," Control Engineering Practice, Vol. 13, No. 8, August 2005, pp. 1037-1046.
184. X. Wang, A. Ray and A. Khatkhate, "On-line Identification of Language Measure Parameters for Discrete Event Supervisory Control," Applied Mathematical Modelling, Vol. 29, No. 6, June 2005, pp. 597-613.
185. X. Wang and A. Ray, "A Language Measure for Performance Quantification of Discrete Event Supervisory Control Systems," Bull. Cal. Math. Soc., Vol. 97, No. 1, 2005, pp. 59-68.
186. A. Ray, J. Fu and C. Lagoa, "Optimal Control of Regular Languages with Event Disabling Cost," Demonstratio Mathematica, Vol. 37, No. 4, 2004, pp. 991-1013.
187. X. Wang, A. Ray, P. Lee and J. Fu, "Optimal Control of Robot Behavior Using Language Measure," International Journal of Vehicle Autonomous Systems, Vol. 2, Nos. 3/4, 2004, pp. 147-167.
188. A. Petruzzi, S. Chin, K. Ivanov, A. Ray and F-B. Cheung, "Development of Methodology for Early Detection of BWR Instabilities," Transactions Am. Nuc. Soc., Vol. 91, November 2004, pp. 902-904.
189. A. Ray, "Stochastic Measure of Fatigue Crack Damage for Health Monitoring of Ductile Alloy Structures," Structural Health Monitoring, Vol. 3, No. 3, September 2004, pp. 245-263.
190. V. Phoha, A. Nadgar, A. Ray, S. Phoha and V. Jain, "Supervisory Control of Software Systems," IEEE Transactions on Computers, Vol. 53, No. 9, September 2004, pp. 1187-1199.
191. X. Wang and A. Ray, "A Language Measure for Performance Evaluation of Discrete Event Supervisory Control Systems," Applied Mathematical Modelling, Vol. 28, No. 9, September 2004, pp. 817-833.
192. A. Ray, J. Fu and C.M.Lagoa, "Optimal Supervisory Control of Finite State Automata," International Journal of Control, Vol. 77, No. 12, August 2004, pp. 1083-1100.
193. A. Ray, "Symbolic Dynamic Analysis of Complex Systems for Anomaly Detection," Signal Processing, Vol. 84, No. 7, July 2004, pp. 1115-1130.
194. A. Surana and A. Ray, "Measure of Regular Languages," Demonstratio Mathematica , Vol. 37, No. 2, June 2004, pp. 485-503.
195. J. Fu, A. Ray and C. M. Lagoa, "Unconstrained Optimal Controlof Regular Languages," Automatica, Vol. 40, No. 4, April 2004, pp. 639-646.
196. A. Ray and S. Phoha, "Signed Real Measure of Regular Languages for Discrete-Event Automata," International Journal of Control, Vol. 76, No. 18, December 2003, pp.1800-1808.
197. A. Ray and S. Phoha, "Calibration and Estimation of Redundant Signals for Real-time Monitoring and Control," Signal Processing, Vol. 83, No.12, December 2003, pp. 2593-2605.
198. E. Keller and A. Ray, "Real-time Nondestructive Evaluation of Mechanical Structures," Structural Health Monitoring, Vol. 2, No. 3, September 2003, pp. 191-203.
199. B.S. Hong, A. Ray and V. Yang, "Output Feedback Linear Parameter Varying (LPV) L2-gain Control," ASME Journal of Dynamic Systems, Measurement, and Control , Vol. 125, No. 3, September 2003, pp.485-489.
200. A. Ray, A. Surana and S. Phoha, "A Language Measure for Supervisory Control," Applied Mathematics Letters, Vol. 16, September 2003, pp. 985-991.
201. C. Delfino, A. Ray, K.N. Ivanov and F-B. Cheung, "A New Concept for Early Detection of BWR Instabilities," Transactions Am. Nuc. Soc. (Trans AO), Vol. 88, June 2003, pp. 292-294.
202. A. Ray and S. Phoha, "Detection of Potential Faults via Multi-level Hypotheses Testing," Signal Processing, Vol. 82, No. 6, June 2002, pp. 853-859.
203. B.S. Hong, A. Ray and V. Yang, "Wide Range RobustControl of Combustion Instability," Combustion and Flame, Vol.128, No. 3, February 2002, pp. 242-258.
204. A. Ray and R. Patankar, "Fatigue Crack Growth under Variable-amplitude Loading: Part II - Code Development and Model Validation," Applied Mathematical Modelling, Vol. 25, Issue 11, November 2001, pp. 995-1013.
205. A. Ray and R. Patankar, "Fatigue Crack Growth under Variable-amplitude Loading: Part I -- Model Formulation in State-Space Setting," Applied Mathematical Modelling, Vol. 25, Issue 11, November 2001, pp. 979-994.
206. C.F. Lorenzo, M. Holmes and A. Ray, "Nonlinear Control of a Reusable Rocket Engine for Life Extension," AIAA Journal of Propulsion and Power, Vol. 17, No. 5, September-October 2001, pp. 998-1004.
207. J. Caplin, A. Ray and S.M. Joshi, "Robust Damage-Mitigating Control of Aircraft for High Performance and Structural Durability," IEEE Transactions on Aerospace and Electronic Systems, Vol. 37, No. 3, July 2001, pp. 849-862.
208. A. Ray, M. Holmes and C.F. Lorenzo, "Life Extending Controller Design for Reusable Rocket Engines," The Aeronautical Journal, Vol. 105, No. 1048, June 2001, pp. 315-322.
209. B-S. Hong and A. Ray, "Observer-Embedded L2-Gain Control," Applied Mathematics Letters, Vol 14, No. 5, May 2001, pp. 563-569.
210. M. Holmes and A. Ray, "Fuzzy Damage Mitigating Control of a Fossil Power Plant," IEEE Transactions on Control Systems Technology, Vol. 9, No. 1, January 2001, pp. 140-147.
211. A. Ray and S. Phoha, "Calibration and Estimation of Redundant Signals," Automatica,Vol. 36, No. 9, October 2000, pp. 1525-1534.
212. S.J. Pinchak and A. Ray, "Pilot Safety Enhancement for On-board Ground Collision Avoidance Systems," Aircraft Engineering and Aerospace Technology, Vol. 72, No. 5, September/October 2000, pp. 422-429.
213. A. Ray and J. Caplin, "Life Extending Control of Aircraft: Trade-off between Flight Performance and Structural Durability," The Aeronautical Journal, Vol. 104, No. 1039, September 2000, pp.397-408.
214. C.F. Lorenzo, M. Holmes and A. Ray, "Nonlinear LifeExtending Control of a Rocket Engine," AIAA Journal of Guidance, Control, and Dynamics, Vol. 23, No. 4, July/August 2000, pp. 759-762.
215. H. Zhang, A. Ray and R. Patankar, "Damage-Mitigating Control with Overload Injection: Experimental Validation of the Concept," ASME Journal of Dynamic Systems, Measurement, and Control , Vol. 122, No. 2, June 2000, pp. 336-342.
216. R. Patankar and A. Ray, "State-Space Modeling of Fatigue Crack Growth in Ductile Alloys," Engineering Fracture Mechanics, Vol. 66, No. 2, May 2000, pp. 129-151.
217. B-S. Hong, V. Yang and A. Ray, "Robust Feedback Control of Combustion Instability with Modeling Uncertainty," Combustion and Flame, Vol. 120, No. 1, January 2000, pp. 91-106.
218. P. Kallappa and A. Ray, "Fuzzy Wide-Range Control of Fossil Power Plants for Life extension and Robust Performance," Automatica, Vol. 36, No. 1, January 2000, pp. 69-82.
219. H. Zhang, A. Ray and S. Phoha, "Hybrid Life Extending Control of Mechanical Systems: Experimental Validation of the Concept," Automatica, Vol. 36, No. 1, January 2000, pp. 23-36.
220. A. Ray, "Stochastic Modeling of Fatigue Crack Damage for Risk Analysis and Remaining Life Prediction," ASME Journal of Dynamic Systems, Measurement, and Control , Vol. 121, No. 3, September 1999, pp. 386-393.
221. H. Zhang and A. Ray, "Robust Damage-Mitigating Control of Mechanical Structures: Experimental Validation on a Test Apparatus," Journal of Dynamic Systems, Measurement, and Control -Transactions of the ASME Vol. 121, No. 3, September 1999, pp. 377-385.
222. R. Patankar and A. Ray, "Damage Mitigating Controller Design for Structural Durability," IEEE Transactions on Control Systems Technology, Vol. 7, No. 5, September 1999, pp. 606-612.
223. A. Ray and S. Phoha, "Stochastic Modeling of Fatigue Crack Damage for Information-Based Maintenance," Annals of Operations Research, Vol. 91, September 1999, pp. 191-204.
224. N-C. Tsai and A. Ray, "Compesatability and Optimal Compensation under Randomly Varying Delays," International Journal of Control, Vol. 72, No. 9, May 1999, pp. 826-832.
225. A. Ray and R. Patankar, "A Stochastic Model of Fatigue Crack Propagation under Variable-Amplitude Loading," Engineering Fracture Mechanics, Vol. 62, Nos. 4-5, March 1999, pp. 477-493.
226. R. Patankar, A. Ray and A. Lakhtakia, "A State-Space Model of Fatigue Crack Growth," International Journal of Fracture, Vol. 90, No.3, September 1998, pp. 235-249.
227. J.N. Rozak and A. Ray, " Robust Multivariable Control of Rotorcraft in forward flight: Impact of Bandwidth on Fatigue Life," Journal of the American Helicopter Society, Vol. 43, No. 3, July 1998, pp. 195-201.
228. E. Yaz and A. Ray, "Linear Unbiased State Estimation for Randomly Varying Sensor Delay," Applied Mathematics Letters, Vol. 11, No. 4, July 1998, pp. 27-32.
229. M. Holmes and A. Ray, "Fuzzy Damage Mitigating Control of Mechanical Structures," Journal of Dynamic Systems, Measurementand Control -Transactions of the ASME, Vol. 120, No. 2, June 1998, pp. 249-256.
230. A. Ray, S. Tangirala and S. Phoha, "Stochastic Modelling of Fatigue Crack Propagation," Applied Mathematical Modelling, Vol. 22, April 1998, pp. 197-204.
231. S. Tangirala, M. Holmes, A. Ray and M. Carpino,"Life-Extending Control of Mechanical Structures: Experimental Verification of the Concept," Automatica, Vol. 34, No. 1, January 1998, pp. 3-14.
232. N-C. Tsai and A. Ray, "Stochastic Optimal Control under Randomly Varying Delays," International Journal of Control, Vol. 68, No. 5, November 1997, pp. 1179-1202.
233. P. Kallappa, M. Holmes and A. Ray, "Life Extending Control of Fossil Power Plants for Structural Durability and High Performance," Automatica, Vol. 33, No. 6, June 1997, pp. 1101-1118.
234. M. Holmes, S. Tangirala and A. Ray, "Life Extending Control of Reusable Rocket Engines," AIAA Journal of Guidance, Controland Dynamics, Vol. 20, No. 3, May-June 1997, pp. 621-623.
235. J.N. Rozak and A. Ray, "Robust Multivariable Control of Rotorcraft in forward flight," Journal of the American Helicopter Society, Vol. 42, No. 2, April 1997, pp. 149-160.
236. A. Ray and S. Tangirala, "A Nonlinear Stochastic Model of Fatigue Crack Dynamics," Probabilistic Engineering Mechanics, Vol. 12, No. 1, January 1997, pp. 33-40.
237. C-K. Weng and A. Ray, "Robust Wide Range Control of Steam-Electric Power Plants," IEEE Transactions on Control Systems Technology, Vol. 5, No. 1, January 1997, pp. 74-88.
238. X. Dai and A. Ray, "Damage-Mitigating Control of a Reusable Rocket Engine: Part II -- Formulation of an Optimal Policy and Simulation," Journal of Dynamic Systems, Measurement and Control -Transactions of the ASME, Vol. 118, No. 3, September 1996, pp. 409-415.
239. X. Dai and A. Ray, "Damage-Mitigating Control of a Reusable Rocket Engine: Part I -- Life Prediction of the Main Thrust Chamber Wall," Journal of Dynamic Systems, Measurement and Control -Transactions of the ASME, Vol. 118, No. 3, September 1996, pp. 401-408.
240. A. Ray and S. Tangirala, "Stochastic Modeling of Fatigue Crack Dynamics for On-line Damage Estimation and Life Prediction," IEEE Transactions on Control Systems Technology, Vol. 4, No. 4, July 1996, pp. 443-451.
241. C-K. Weng, A. Ray and X. Dai, "Modelling of Power Plant Dynamics and Uncertainties for Robust Control Synthesis," Applied Mathematical Modelling, Vol. 20, July 1996, pp. 501-512.
242. M. Holmes, A. Ray and D. Mudgett, "Modeling of the Planar Motion of a Proposed Laboratory Flexible Structure," AIAA Journal of Guidance, Control and Dynamics, Vol. 19, No. 3, May/June 1996, pp. 710-713.
243. H.E. Garcia and A. Ray, "State-Space Supervisory Controlof Reconfigurable Discrete Event Systems," International Journal of Control, Vol. 63, No.4, April 1996, pp. 767-797.
244. J.H. Shen, A. Ray and S.H. Levine, "A Decision Support System for Maintenance Management of a Boiling Water Reactor PowerPlant," Nuclear Safety, Vol. 37, No. 1, January-March 1996, pp. 1-11.
245. X. Dai and A. Ray, "Life Prediction of the Thrust Chamber Wall of a Reusable Rocket Engine," AIAA Journal of Propulsion and Power, Vol. 11, No. 6, November-December 1995, pp. 1279-1287.
246. E. Yaz and A. Ray, "Grammian Assignment for Stochastic Parameter Systems and Their Stabilization under Randomly Varying Delays," Optimal Control Applications and Methods, Vol. 16,.No. 4, September 1995, pp. 263-272.
247. S. Tangirala, A. Ray and M. Carpino, "Damage Mitigating Control of Mechanical Systems: Experimental Verification of the Concept," SMART Materials and Structures, Vol. 4, No. 2, June 1995, pp. 139-146.
248. C-J. Li and A. Ray, "Neural Network Representation of Fatigue Damage Dynamics," SMART Materials and Structures, Vol. 4, No.2, June 1995, pp. 126-133.
249. H.E. Garcia, A. Ray and R.M. Edwards, "Implementation of a Reconfigurable Fault-Tolerant Hybrid Supervisory System," IEEE Transactions on Control Systems Technology, Vol. 3, No. 2, June 1995, pp.157-170.
250. M-K. Wu and A. Ray, "Damage-Mitigating Control of Mechanical Systems for Structural Durability and High Performance," Journal of Engineering for Gas Turbines and Power -Transactions of the ASME, Vol. 117, No.2, April 1995, pp. 307-313.
251. S. Lee and A. Ray, "Performance Management of Manufacturing System Networks," International Journal of Flexible Manufacturing, Vol.7, No. 1, March 1995, pp. 47-71.
252. C-K. Weng, M. Power, R.M. Edwards and A. Ray, "Feedforward-Feedback Control by Nonlinear Programming and Structured Singular Value Approach," Transactions Am. Nuc. Soc., Vol. 71, November 1994, pp. 365-366.
253. A. Ray, M-K. Wu, M. Carpino and C.F. Lorenzo,"Damage-Mitigating Control of Mechanical systems: Part II -- Formulation of an Optimal Control Policy and Simulation,"ASME Journal of Dynamic Systems, Measurement and Control , Vol. 116, No. 3, September 1994, pp. 448-455.
254. A. Ray, M-K. Wu, M. Carpino and C.F. Lorenzo,"Damage-Mitigating Control of Mechanical systems: Part I -- Conceptual Development and Model Formulation,"ASME Journal of Dynamic Systems, Measurement and Control , Vol. 116, No.3, September 1994, pp. 437-447.
255. A. Ray, "Output Feedback Control under Randomly Varying Distributed Delays," AIAA Journal of Guidance, Control, and Dynamics, Vol.17, No. 4, July/August 1994, pp. 701-711.
256. C-K. Weng, R.M. Edwards and A. Ray, "Robust Wide-Range Control of Nuclear Reactors Using the Feedforward-Feedback Concept," Nuclear Science and Engineering, Vol. 117, No. 3, July 1994, pp.177-185.
257. R. Luck and A. Ray, "Experimental Verification of a Delay Compensation Algorithm for Integrated Communication and Control Systems," International Journal of Control, Vol. 59, No. 6, June 1994, pp. 1357-1372.
258. C-K. Weng, R.M. Edwards and A. Ray, "Automation for Efficient and Safe Large Power Changes in Nuclear Power Plants," Transactions Am. Nuc. Soc., Vol. 70, June 1994, pp. 324-325.
259. R. Luck and A. Ray, "A Fixed Memory Filter for Real-Time Estimation of Noise-Corrupted Signals," AIAA Journal of Guidance, Control, and Dynamics, Vol. 17, No.3, May/June 1994, pp. 231-234.
260. A. Ray, X. Dai, M-K. Wu, M. Carpino and C.F. Lorenzo,"Damage-Mitigating Control of a Reusable Rocket Engine," AIAA Journal of Propulsion and Power, Vol. 10, No. 2, March-April 1994, pp. 225-234.
261. A. Ray and M-K. Wu, "Fatigue Damage Control of Mechanical Systems," SMART Materials and Structures, Vol. 3, No. 1, March 1994, pp. 47-58.
262. S. Lee and A. Ray, "Performance Management of Multi-Access Communication Networks," IEEE Journal of Selected Areas in Communications, Vol. 11, No. 9, December 1993, pp.1426-1437.
263. A. Ayyagari and A. Ray, "Modelling and Analysis of a Data Communication Protocol for Integrated Control of Advanced Aircraft," Computer Communications, Vol. 16, No. 6, June 1993, pp. 350-365.
264. A. Ray, L-W. Liou and J.H. Shen, "State Estimation Using Randomly Delayed Measurements," ASME Journal of Dynamic Systems, Measurement and Control , Vol. 115, No. 1, March 1993, pp. 19-26.
265. J.H. Shen and A. Ray, "Extended Discrete-Time LTR Synthesis of Delayed Control Systems," Automatica, Vol. 29, No. 2, 1993, pp. 431-438.
266. R.M. Edwards, K.Y. Lee and A. Ray,"The Penn State Intelligent Distributed Control Laboratory," IEEE Transactions on Energy Conversion, Vol. 7, No. 3, September 1992, pp. 478-482.
267. A. Ayyagari and A. Ray, "A Fiber Optic Network Protocol for Computer Integrated Manufacturing," ASME Journal of Engineering for Industry , Vol. 114, No.3, August 1992, pp. 345-351.
268. J.H. Shen and A. Ray, "Discrete-Time Loop Transfer Recovery with Multistep Delays," Optimal Control Applications & Methods, Vol. 13, No. 3, July-September 1992, pp. 255-263
269. J.H. Shen, L-W. Liou, S. Levine, A. Ray and M. Detamore, "Expert System for Maintenance Management of A Boiling Water Reactor Power Plant," Transactions Am.Nuc.Soc., Vol. 65, June 1992, pp. 380-381.
270. R.M. Edwards, K.W. Lee and A. Ray, "Robust Optimal Control of Nuclear Reactors and Power Plants," Nuclear Technology, Vol. 98, May 1992, pp. 137-148.
271. A. Ayyagari and A. Ray, "A Fiber-Optic-Based Protocol for Manufacturing System Networks: Part II -- Statistical Analysis," ASME Journal of Dynamic Systems, Measurement and Control , Vol. 114, No. 1, March 1992, pp. 121-131.
272. A. Ayyagari and A. Ray, "A Fiber-Optic-Based Protocol forManufacturingSystem Networks: Part I -- Conceptual Development andArchitecture," ASME Journal of Dynamic Systems, Measurement and Control , Vol.114, No. 1, March 1992, pp. 113-120.
273. R. Luck, A. Ray and Y. Halevi, "Observability under Recurrent Loss of Outputs," AIAA Journal of Guidance, Control, and Dynamics, Vol. 15, No. 1, January-February 1992, pp. 284-287.
274. R. Yu, J.J. Metzner and A. Ray, "Twin-Bus-Control (TBC) Protocol for Fiber-Optic-Based Networks," Computer Communications, Vol.14, No. 10, December 1991, pp. 598-607.
275. L-W. Liou and A. Ray, "A Stochastic Regulator for Integrated Communication and Control Systems: Part II - Numerical Analysis and Simulation," ASME Journal of Dynamic Systems, Measurement and Control, Vol. 113, No. 4, December 1991, pp. 612-619.
276. L-W. Liou and A. Ray, "A Stochastic Regulator for Integrated Communication and Control Systems: Part I - Formulation ofControl Law," ASME Journal of Dynamic Systems, Measurement and Control , Vol. 113, No. 4, December 1991, pp. 604-611.
277. S. Nann, A. Ray and S. Kumara, "An Automated Decision Support System for Control of Real-Time Processes," International Journal of Intelligent Systems, Vol. 6, December 1991, pp. 739-758.
278. R.M. Edwards, K-W. Lee and A. Ray, "Multilayer Robust Control for Safety Enhancement of Reactor Operations," Transactions Am. Nuc. Soc., Vol. 63, June 1991, pp. 402-403.
279. A. Ray and R. Luck, "An Introduction to Sensor Signal Validation in Redundant Measurement Systems," IEEE Control System Magazine, Vol. 11, No. 2, February 1991, pp. 44-49.
280. R. Luck and A. Ray, "Failure Detection and Isolation of Ultrasonic Ranging Sensors for Robotic Applications," IEEE Transactions on Systems, Man and Cybernetics, Vol. 21, No. 1, January-February 1991, pp. 221-227.
281. H.E. Garcia, A. Ray and R.M. Edwards, "Reconfigurable Control of Power Plants Using Learning Automata," IEEE Control System Magazine, Vol. 11, No. 1, January 1991, pp. 85-92.
282. L-W. Liou and A. Ray, "On Modeling of Integrated Communication and Control Systems,"ASME Journal of Dynamic Systems, Measurement and Control , Vol. 112, No. 4, December 1990, pp. 790-794.
283. A. Ray, "Multi-level Hypotheses Testing for Signal Validation in Continuous-Time Processes,"ASME Journal of Dynamic Systems, Measurement and Control , Vol. 112, No. 4, December 1990, pp.787-790.
284. R. Luck and A. Ray, "An Observer-Based Compensator for Distributed Delays," Automatica, Vol. 26, No. 5, September 1990, pp. 903-908.
285. Y. Halevi and A. Ray, "Performance Analysis of Integrated Communicationand Control System Networks," ASME Journal of Dynamic Systems, Measurement and Control , Vol. 113, No. 3, September 1990, pp. 365-371.
286. R.M. Edwards and A. Ray, "Concept of A Computer Network Architecture for Complete Automation of Nuclear Power Plants," Transactions Am. Nuc. Soc., Vol. 61, June 1990, pp. 307-309.
287. S.H. Hong and A. Ray, "Analysis and Simulation of the Priority Scheme in Token Bus Protocols," Computer Communications, Vol.13, No. 3, April 1990, pp. 157-164.
288. A.N. Vavreck, N. Nayak, E.D. Bushway and A. Ray, "An Adaptive Seam Tracker for Welding Heavy-Section Aluminum," IEEE Transactions on Industry Applications, Vol. 25, No. 4, July/August 1989, pp. 658-663.
289. R.M. Edwards, A. Ray, M.A. Schultz and E.S. Kenney, "A Concept of Integrated Control for Nuclear Power Plants," Transactions Am. Nuc. Soc., Vol. 59, June 1989, pp. 290-291.
290. A. Ray, "Sequential Testing for Fault Detection in Multiply-Redundant Systems,"ASME Journal of Dynamic Systems, Measurement and Control , Vol. 111, No.2, June 1989, pp. 329-332.
291. A. Ray and S. Phoha, "Research Directions in Computer Networking for Manufacturing Systems,"ASME Journal of Engineering for Industry , Vol. 111, No. 2, May 1989, pp. 109-115.
292. A. Ray, "Introduction to Networking for Integrated Control Systems," IEEE Control System Magazine, Vol. 9, No. 1, January 1989, pp. 76-79.
293. L-W. Liou and A. Ray, "Integrated Communication and Control Systems: Part III -- Non-Identical Sensor and Controller Sampling," ASME Journal of Dynamic Systems, Measurement and Control, Vol. 112, No. 3, September 1990, pp. 357-364.
294. A. Ray and Y. Halevi, "Integrated Communication and Control Systems: Part II -- Design Considerations," Journal of Dynamic Systems, Measurement and Control -Transactions of the ASME, Vol. 110, No. 4, December 1988, pp.374-381.
295. Y. Halevi and A. Ray, "Integrated Communication and Control Systems: Part I -- Analysis," Journal of Dynamic Systems, Measurement and Control -Transactions of the ASME, Vol. 110, No. 4, December 1988, pp. 367-373.
296. H.P. Polenta, A. Ray and J.A. Bernard, "Microcomputer-Based Fault Detection Using Redundant Sensors," IEEE Transactions on Industry Applications, Vol. 24, No. 5, September-October 1988, pp. 905-912.
297. A. Ray, "Network Access Protocols for Real-time Distributed Control Systems," IEEE Transactions on Industry Applications, Vol. 24, No. 5,September-October 1988, pp. 897-904.
298. H.E. Watson and A. Ray, "Laser-based Robotics for Automation and Precision Measurements," CIM Review, Vol. 4, No. 4, Summer 1988, pp. 40-46.
299. A. Ray and M. Desai, "Fault Detection Using a Linear Algebraic Approach," Linear Algebra in Signals, Systems and Control, SIAM Publication, Philadelphia, ed. B. N. Datta et al., May 1988, pp.627-641.
300. A. Ray, "Networking for Computer-Integrated Manufacturing," IEEE Network Magazine: Special Issue on Communications for Manufacturing, Vol. 2, No. 3, May 1988, pp. 40-47.
301. A. Ray and S. Phoha, "A Service Access Procedure (SAP) for a Transport Layer Protocol," Telematics and Informatics, Vol.5, No. 1, April 1988, pp. 65-73.
302. A. Ray, "Distributed Data Communication Networks for Real-Time Process Control," Chemical Engineering Communications, Vol. 65, March/April 1988, pp. 139-154.
303. D.R. Thompson, A. Ray and S.R.T. Kumara, "A Hierarchically Structured Knowledge-based System for Welding Automation and Control," ASME Journal of Engineering for Industry , Vol. 110, No. 1, February 1988, pp. 71-76.
304. A. Ray, S.H. Hong, S. Lee and P. Egbelu, "Discrete-event Continuous-time Simulation of Distributed Digital Control Systems," Transactions Society of Computer Simulation, Vol. 5, No. 1, January 1988, pp .71-85.
305. A. Ray, "Performance Analysis of Medium Access Control Protocols for Distributed Digital Avionics,"ASME Journal of Dynamic Systems, Measurement and Control , Vol. 109, No. 4, December 1987, pp. 370-377.
306. N. Nayak, A. Ray and A.N. Vavreck, "An Adaptive Real-Time Intelligent Seam Tracking System," SME Journal of Manufacturing Systems, Vol. 6, No. 3, September 1987, pp. 241-245.
307. A. Abo-Ismail and A. Ray, "Effects of Nonlinearities on the Transient Response of an Electrohydraulic Position Control Servo," Journal of Fluid Control, Vol.17, No. 3, April 1987, pp. 59-79.
308. A. Ray and M. Desai, "A Redundancy Management Procedure for Fault Detection and Isolation,"ASME Journal of Dynamic Systems, Measurement and Control , Vol. 108, No. 3, September 1986, pp. 248-254.
309. A. Ray, "A Microcomputer-based Fault-tolerant Control System for Industrial Applications," IEEE Transactions on Industry Applications, Vol. IA-21, No. 5, September-October 1985, pp. 1276-1283.
310. J.A. Bernard, D.D. Lanning and A. Ray, "The Nuclear Industry and Digital Control: An Unrealized Opportunity," InTech, September 1985, pp. 61-64.
311. D.D. Lanning, J.A. Bernard, J.H. Hopps and A. Ray,"MITR-II: Integrated Fault-tolerant Systems - Implementation and Experiments," Trans. Am. Nuc. Soc., Vol. 49, June1985, pp. 377-378.
312. J.A. Bernard, D.D. Lanning and A. Ray, "Use of Reactivity Constraints for Automatic Control of Reactor Power," IEEE Transactions on Nuclear Science, Vol. NS-32, No. 1, February 1985, pp. 1036-1040.
313. A. Ray and M. Desai, "A Calibration and Estimation Filter for Multiply Redundant Measurement Systems,"ASME Journal of Dynamic Systems, Measurement and Control , Vol. 106, No. 2, June 1984, pp.149-156.
314. J.A. Bernard, A. Ray and D.D. Lanning, "Digital Computer Control of Power Transients in a Nuclear Reactor," IEEE Transactions on Nuclear Science, Vol. NS-31, No. 1, February 1984, pp. 701-705.
315. J.A.Bernard, D.D. Lanning, K. Kwok and A. Ray,"Demonstration of Decision Analysis Techniques for Steady-state Reactor Control," Transactions Am. Nuc. Soc., Vol.45, October-November 1983, pp.661-662.
316. J.A.Bernard, A. Ray and D.D. Lanning, "Digital Computer Control of a Nuclear Reactor," Transactions Am. Nuc. Soc.,Vol.44, August 1983, pp. 64-66.
317. J. Fischer, A. Ray, R. Ornedo, E. Kujawski and S.M.Divakaruni, "Signal Validation for a BWR Suppression Pool," Transactions Am. Nuc. Soc., Vol.44,August 1983, pp. 50-52.
318. A. Ray, R. Geiger, M. Desai and J. Deyst, "Analytic Redundancy for On-line Fault Diagnosis in a Nuclear Reactor," AIAA Journalof Energy,Vol. 7, No. 4, July-August 1983, pp.367-373.
319. A. Ray, M. Desai and J.J. Deyst, "On-line Fault Diagnosis in a Nuclear Reactor by Sequential Testing," IEEE Transactions on Nuclear Science, Vol. NS-30, No. 3, June 1983, pp. 1850-1855.
320. J.C. Deckert, J.L. Fisher, D.B. Laning and A. Ray, "Signal Validation for Nuclear Power Plants,"ASME Journal of Dynamic Systems, Measurement and Control , Vol. 105, No. 1, March 1983, pp. 24-29.
321. A. Ray, J.A. Bernard and D.D. Lanning, "Computer Control of Power in a Nuclear Reactor," IEEE Transactions on Nuclear Science, Vol. NS-30, No. 1, February 1983, pp. 820-824.
322. A. Ray, M. Desai and J.J. Deyst, "Fault Detection and Isolation in a Nuclear Reactor," AIAA Journal of Energy, Vol. 7, No. 1, January-February 1983, pp. 79-85.
323. A. Ray, "Nonlinear Dynamic Model of a Solar Steam Generator," Solar Energy, Vol. 26, 1981, pp. 297-306.
324. A. Ray, "Updating the Control Systems of a Trallfa Industrial Robot," The Industrial Robot, September 1981, pp. 166-170.
325. A. Ray, "Dynamic Modelling of Once-through Steam Generator for Solar Applications," Applied Mathematical Modelling, Vol. 4, December 1980, pp. 417-423.
326. A. Ray, "Automated Finishing of Steel Castings," The Industrial Robot, September 1980, pp. 172-174.
327. A. Ray, "Dynamic Modelling of Power Plant Turbines for Controller Design," Applied Mathematical Modelling, Vol. 4, April 1980, pp. 109-112.
328. A. Ray, D.A. Berkowitz and V.H. Sumaria, "Nonlinear Dynamic Model of a Fluidized Bed Steam Generation System", Journal of Engineering for Power -Transactions of the ASME, Vol. 102, No. 1, January 1980, pp. 202-208.
329. A. Ray and D.A. Berkowitz, "Design of a Practical Controller for a Commercial Scale Fossil Power Plant," ASME Journal of Dynamic Systems, Measurement and Control , Vol. 101, No. 4, December 1979, pp. 284-289.
330. A. Ray, "Modeling of an HTGR Steam Power Plant," Applied Mathematical Modelling, Vol. 3, October 1979, pp. 391-394.
331. A. Ray, "Modeling and Simulation of a Relief Valve," Simulation, November 1978, pp. 167-172.
332. A. Ray, "Approximation of Fundamental Equations for Finite-Dimensional Modeling of Thermo-fluid Processes," ASME Journal of Engineering for Power , Vol. 100, No. 4, October 1978, pp. 722-723.
333. A. Ray, D.A. Berkowitz and V.H. Sumaria, "Modeling and Simulation of a Multicell Fluidized Bed Steam Generator," AIAA Journal of Energy, Vol. 2, No. 5, September-October 1978, pp. 269-278.
334. A. Ray and H.F. Bowman, "Digital Simulation of a High Temperature Gas-Cooled Reactor (HTGR) Steam Power Plant," IEEE Transactions on Nuclear Science, Vol. NS-25, No. 4, August 1978, pp. 1068-1077.
335. A. Ray, "Identification of an Industrial Process by Numerical Inversion of the Laplace Transform," IEEE Transactions on Industry Applications, Vol. IA-14, No. 2, March-April 1978, pp. 111-115.
336. A. Ray, "On the Application of Modern Control to Power Plants," Comment on "Articles on Power Plant Control" by R.A. Smoak in ASME Journal of Dynamic Systems, Measurement and Control , Vol. 100, No. 1, March 1978, p. 94.
337. Y. Lin, R.S. Nielsen and A. Ray, "Fuel Controller Design in a Once-through Subcritical Steam Generator," ASME Journal of Engineering for Power , Vol. 100, No. 1, January 1978, pp. 189-196.
338. A. Ray and H.F. Bowman, "A Nonlinear Dynamic Model of a Once-through Steam Generator," ASME Journal of Dynamic Systems, Measurement and Control , Vol. 98, No. 3, September 1976, pp. 322-329.

Patents

1. S. Sarkar, T. Damarla, and A. Ray, Apparatus and Method for Activity Detection and Classification from Sensor Data, U.S. Patent No. 10,621,506, April 14, 2020.


2. V.V. Phoha, S.S. Joshi, S.K. Vuyyuru, S. Phoha, and A. Ray, Hidden Markov Model ("HMM")--based User Authentication Using Keystroke Dynamics, U.S. Patent No. 8,136,254, March 13, 2012.


3. V.V. Phoha, S. Babu, A. Ray and S. Phoha, System and method for classifying regions of keystroke density with a neural network, U.S. Patent No. 7,620,819, November 17, 2009.
   Issued to BioPassword, Inc. of Issaquah, Washington (now AdmitOne Security), who has licensed U.S. Patent No. 7,620,819.

Books

1. A. Ray, V. V. Phoha and S. Phoha, QUANTITATIVE MEASURE FOR DISCRETE EVENT SUPERVISORY CONTROL: Theory and Applications, Springer, New York, 2005. ISBN 0-387-02108.


2. N. Nayak and A. Ray, INTELLIGENT SEAM TRACKING FOR ROBOTIC WELDING, Springer Verlag, New York, 1993. ISBN 0-387-19826-1.

Book Chapters

1. X. Chen and A. Ray, " Reduced-order Modeling of a Nuclear Power Plant for Real-time Monitoring and Control," Dynamic Data Driven Applications Systems, Part II, eds. F. Darema and E.Blasch, International Publishing AG, in press, 2022.    
   
2. N .Ghalyan and A. Ray, " Measure-Invariant Symbolic Systems for Pattern Recognition and Anomaly Detection," Dynamic Data Driven Applications Systems, Part II, eds. F. Darema and E.Blasch, International Publishing AG, in press, 2022.    
   
3. S. Mondal, C. Bhattacharya, N. Ghalyan and A. Ray, " Real-time Monitoring and Diagnostics of Anomalous Behavior in Dynamical Systems," Dynamics and Control of Energy Systems, eds. A. Mukhopadhyay, S. Sen, D.N. basu, and S. Mondal, Springer Nature, 2020, ISSN 2522-8366.    
   
4. N.Virani, S.Phoha and A. Ray, " On Compression of Machine-derived Context Sets for Fusion of Multi-modal Sensor Data," Dynamic Data-driven Application Systems, 1st ed. E. Blasch, S. Ravela and A. Aved (eds.), Chapter 25, Handbook of Dynamic Data Driven Applications Systems, Springer International Publishing AG, October 2018 ISBN-10: 3319955039 ISBN-13: 9783319955032    
   
5. D.K. Jha, N.Virani, and A. Ray, "Markov Modeling of Time Series via Spectral Analysis for Detection of Combustion Instabilities," Dynamic Data-driven Application Systems, E. Blasch, A. Aved and S. Ravela (eds.), Chapter 06, Handbook of Dynamic Data Driven Applications Systems, Springer International Publishing AG, October 2018 ISBN-10: 3319955039 ISBN-13: 9783319955032    
   
6. S. Sen, S. Sarkar, R.R. Chaudhari and A. Ray, "Lean Blowout (LBO) Prediction Through Symbolic Time Series Analysis," Combustion for Power Generation and Transportation", DOI: 10.1007/978-981-10-3785-6_8, pp. 153-167, Chapter 10, January 2017.    
   
7. N. Virani, S. Sarkar, J-W. Lee, S.Phoha and A. Ray, "Algorithms for Context Learning and Feature Extraction for Multi-Sensor Teams," World Scientific Review, "time series classification", Chapter 15, 2015    
   
8. S. Bahrampour, N.M. Nasrabadi and A. Ray, "Sparse Representation for Time-Series Classifcation," Pattern Recognition: From Classical to Modern Approaches, eds. S. Pal and A. Pal, World Scientific, 2015.    
   
9. S. Sarkar, S. Sarkar, and A. Ray, "Data-enabled Health Management of Complex Industrial Systems," Fault Detection: Classification, Techniques and Role in Industrial Systems,, Nova Science Publishers, pp. 1-72, 2014.    
   
10. S. Phoha, D. Bein, Y. Wen, B. Madan and A. Ray, "Dynamically AdaptiveMulti-Modal Sensor Fusion in Urban Environments," Distributed Sensor Networks, Second Edition, Volume 2, Chapman & Hall/CRC, Boca Raton, Florida, eds. S.S. Iyengar and R. Brooks, 2013,   Chapter 26, pp. 551-576.     ISBN-10: 1439862877 or ISBN-13: 978-1439862872 .
    
11. X. Jin, S. Gupta, K. Mukherjee and A. Ray, "Symbolic Dynamic Filtering for Pattern Recognition in Distributed Sensor Networks," Distributed Sensor Networks, Second Edition, Volume 1, Chapman & Hall/CRC, Boca Raton, Florida, eds. S.S. Iyengar and R. Brooks, 2013,   Chapter 14, pp. 307-333.    ISBN-10: 1439862877 or ISBN-13: 978-1439862872 .
    
12. S. Gupta and A. Ray, "Real-time Fatigue Damage Monitoring via In Situ Ultrasonic Sensing," FATIGUE CRACK GROWTH: Mechanics, Behavior and Prediction, Nova Science Publishers, Hauppage, NY, Chapter 1, 2009,  pp. 3-48.     ISBN 978-1-60692-476-1.
    
13. S. Gupta, D. Singh, A. Srivastav and A. Ray, "Measurement of Behavioral Uncertainties in Mechanical Vibration Systems: A Symbolic Dynamics Approach," MECHANICAL VIBRATIONS: Measurement Effects and Control, Nova Science Publishers, Hauppage, NY, Chapter 5, 2009, pp. 1-29.         ISBN: 978-1-60692-037-4.
    
14. S. Gupta and A. Ray, "Symbolic Dynamic Filtering for Data-driven Pattern Recognition," PATTERN RECOGNITION: Theory and Application, Nova Science Publishers, Hauppage, NY, ed., E.A. Zoeller, Chapter 2, 2007, pp. 17-71. ISBN 978-1-60021-717-3.
15. V.V. Phoha, S. Phoha, A. Ray, K.S. Balagani, A.U. Nadgar and R. Varanasi, "Embedded Soft Sensing for Anomaly Detection in Mobile Robotic Networks," SENSOR NETWORK OPERATIONS, IEEE Press/Wiley, eds. S. Phoha, T. LaPorta and C. Griffin, Chapter 10, 2006, pp. 609-629. ISBN 0-387-19826-1.
16. A. Ray and S. Phoha, "Signal Calibration, Estimation for Real-Time Monitoring and Control," DISTRIBUTED SENSOR NETWORKS, Chapman & Hall/CRC, Boca Raton, Florida, eds. S.S. Iyengar and R. Brooks, Chapter 20, December 2004, pp. 381-398. ISBN-10: 1584883839 or ISBN-13: 978-1584883838.
17. V. Yang, B-S. Hong and A. Ray, "Robust Feedback Control of Combustion Instabilities with Model Uncertainty," ADVANCES IN CHEMICAL PROPULSION, CRC Press, Boca Raton, Florida, ed. G.D. Roy, 2001, pp. 361-380. ISBN 0-8493-1171-3.
18. P. Kallappa, A. Ray and M.S. Holmes, "Fuzzy Life Extending Control of Mechanical Systems," ANALYTICAL ISSUES IN FUZZY CONTROL: Synthesis and Analysis, Wiley, Chichester, U.K., eds. S. S. Farinwata, D. Filev and R. Langari, Chapter 18, 2000, pp. 349-383. ISBN 0-471-98631-3.
19. S. Phoha and A. Ray, "Life Extension of Operating Machinery Using the National Information Infrastructure (NII)," COMPUTER-AIDED MAINTENANCE, METHODOLOGIES AND PRACTICE, Kluwer Academic Publishers, Dordrecht, The Netherlands, eds. J. Lee and B. Wang, 1999, pp. 231-260. ISBN 0-412-62970-4.
20. A. Ray and S. Phoha, "Integrated Prognostics, Maintenance, and Life Extending Control," COMPUTER-AIDED MAINTENANCE, METHODOLOGIES AND PRACTICE, Kluwer Academic Publishers, Dordrecht, The Netherlands, eds. J. Lee and B. Wang, 1999, pp. 136-169. ISBN 0-412-62970-4.
21. P. Kallappa and A. Ray, "Life-Extending Load Regulation of Power Plants," ENCYCLOPEDIA OF ELECTRICAL AND ELECTRONIC ENGINEERING, Wiley, ed. J.G. Webster, New York, Vol. 11, February 1999, pp. 494-511. ISBN 0-471-13952-1.
22. A. Ray and S. Phoha, "Research Problems in Computer Networking for Manufacturing Systems," PROGRESS IN ROBOTICS AND INTELLIGENT SYSTEMS, Volume 2, ABLEX Publishing Corporation, Norwood, NJ, eds. C.Y. Ho and G.W. Zobrist, 1996, pp. 196-213. ISBN 0-89391-593-9.
23. A. Ray, "Computer Networking for Manufacturing Systems," PROGRESS IN ROBOTICS AND INTELLIGENT SYSTEMS, Volume 1, ABLEX Publishing Corporation, Norwood, NJ, eds. C.Y. Ho and G.W. Zobrist, Chapter 3, 1994, pp. 78-105. ISBN 0-89391-580-7.
24. H.E. Watson and A. Ray, "Laser-Based Intelligent Robotic Systems for Manufacturing Automation," COMPUTER-AIDED DESIGN, ENGINEERING, and DRAFTING, Auerbach Publications, New York, eds. M. Sullivan and S. Chasin, Article #3.17S38, Summer 1987.
25. A. Ray, "Power Plant Transients in a Feedpump System," SIMULATION PROCEEDINGS ON ENERGY, Volume 2, ed. K.E.F. Watt, December 1978, Chapter 12.

Invited Lectures

• China Jiliang University Invited Lecture, Hangzhou, China, July 2016
  Instrumentation & Control in a Cyber-physical Setting: Adaptive Pattern Recognition
• Zhejiang University Invited Lecture, Hangzhou, China, July 2016
  Autonomous Perception: Sensor Data to Knowledge in Cyber-physical Systems
• Army Research laboratory Invited Lecture, Adelphi, Maryland, August 2014
  Autonomous Perception and Decision-making in the Dynamic Data-driven Setting
• Shanghai Jiatong University Invited Lecture, Shanghai, China, January 2014
  Fault Diagnosis and Prognosis: Gas Turbine Engines as an application example
• Keynote Address in the 8th International Conference on Computer Science & Education (ICCSE 2013) , Colombo, Sri Lanka, April 26-28, 2013
  Autonomous Perception and Decision-making in Cyber-physical Systems
• Syracuse University Invited Lecture, Syracuse, New York, NY, October 2011
  Autonomous Perception and Decision-making in Cyber-physical Systems
• ASME Invited Lecture, delivered in ASME World Headquarters, New York, NY, October 2010
  Complex Systems failure (CSF): Sustaining Order and Normalcy in Human-engineered Systems
  
• Louisiana Tech University Invited Lecture, Ruston, Louisiana, April 2008
  Statistical Mechanics of Complex Systems for Pattern Identification
• University of Alberta Invited Lecture, Edmonton, Alberta, Canada, February 2007
  Sustaining Order and Normalcy in Human-Engineered Complex Systems
• Idaho National Laboratory Invited Lecture, Idaho Falls, Idaho, July 2006
  Anomaly Detection and Failure Prognosis via Symbolic Dynamic Filtering: Parts I and II
• Colorado School of Mines Invited Lecture, Golden, Colorado, April 2005
  Homeostasis and Homeorhesis: Sustaining Order and Normalcy in Human-Engineered Complex Systems
• Boston University Invited Lecture, Boston, Massachussetts, February 2005
  Homeorhesis: Sustaining Order and Normalcy in Human-Engineered Complex Systems
• National Institute of Standards and Technology Invited Lecture, Gaithersburg, Maryland, November 2004
  Anomaly Detection and Failure Detection in Complex Dynamical Systems
• NASA Langley Research Center Invited Lecture, Hampton, Viginia, June 2003
  Anomaly Detection in Aircraft Structures: A Statistical Mechanics Perspective
• Purdue University Donald W. Feddersen Distiguished Lecture, West Lafayette, Indiana, January 2003
  Anomaly Detection in Complex Systems: A Statistical Mechanical Perspective
• NASA Glenn Research Center Invited Lecture, Cleveland, Ohio, April 2002
  Anomaly Detection in Aircraft Gas Turbine Engines: A Statistical Mechanics Perspective
• University of Connecticut Invited Lecture, Storrs, Connecticut, January 2001
  Information-Integrated Mechanical Engineering: Theoretical and Applications Perspectives
• University of Arkansas Invited Lecture, Little Rock, Arkansas, January 2000
  Life Extending Control of the Space Shuttle Main Engine
• NASA Glenn Research Center Invited Lecture, Cleveland, Ohio, February 1999
  Robust Active Control of Thermo-Acoustic Pressure Oscillations in Aircraft Gas Engine Combustors
• University of Houston Invited Lecture, Houston, Texas, November 1997
  Health Monitoring and Control of Mechanical Structures
• Pusan National University Invited Lecture, Pusan, Korea, January 1997
  Integrated Communication and Control of Manufacturing Systems
• Korean Advanced Institute of Science and Tecnology (KAIST) Invited Lecture, Dajeon, Korea, January 1997
  Health Monitoring and Life Extending Control of Nuclear Power Plants
• Seoul National University Invited Lecture, Seoul, Korea, December 1996
  Integrated Communication and Control of Mechanical Structures