Asok Ray

    • 7064 Citations
    • 37 h-Index
    1976 …2020

    Research output per year

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    2012

    An inner product space on irreducible and synchronizable probabilistic finite state automata

    Adenis, P., Wen, Y. & Ray, A., Jan 1 2012, In : Mathematics of Control, Signals, and Systems. 23, 4, p. 281-310 30 p.

    Research output: Contribution to journalArticle

    13 Scopus citations

    Designing a fusion-driven sensor network to selectively track mobile targets

    Phoha, S., Mallapragada, G., Wen, Y., Bein, D. & Ray, A., Mar 1 2012, In : Parallel Processing Letters. 22, 1, 1250001.

    Research output: Contribution to journalArticle

    Fractal analysis of crack initiation in polycrystalline alloys using surface interferometry

    Jha, D. K., Singh, D. S., Gupta, S. & Ray, A., May 1 2012, In : EPL. 98, 4, 44006.

    Research output: Contribution to journalArticle

    6 Scopus citations

    Online recursive estimation of remaining life using ultrasonic measurements

    Singh, D. S., Gupta, S. & Ray, A., Jul 1 2012, In : Structural Health Monitoring. 11, 4, p. 413-421 9 p.

    Research output: Contribution to journalArticle

    3 Scopus citations

    Optimization of symbolic feature extraction for pattern classification

    Sarkar, S., Mukherjee, K., Jin, X., Singh, D. S. & Ray, A., Mar 1 2012, In : Signal Processing. 92, 3, p. 625-635 11 p.

    Research output: Contribution to journalArticle

    17 Scopus citations

    Statistical mechanics-inspired modeling of heterogeneous packet transmission in communication networks

    Sarkar, S., Mukherjee, K., Ray, A., Srivastav, A. & Wettergren, T. A., Mar 12 2012, In : IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics. 42, 4, p. 1083-1094 12 p., 6166902.

    Research output: Contribution to journalArticle

    8 Scopus citations

    Symbolic dynamic filtering and language measure for behavior identification of mobile robots

    Mallapragada, G., Ray, A. & Jin, X., Jan 1 2012, In : IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics. 42, 3, p. 647-659 13 p., 6069609.

    Research output: Contribution to journalArticle

    18 Scopus citations

    Symbolic identification for fault detection in aircraft gas turbine engines

    Chakraborty, S., Sarkar, S. & Ray, A., Apr 1 2012, In : Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. 226, 4, p. 422-436 15 p.

    Research output: Contribution to journalArticle

    8 Scopus citations

    Target detection and classification using seismic and PIR sensors

    Jin, X., Sarkar, S., Ray, A., Gupta, S. & Damarla, T., May 8 2012, In : IEEE Sensors Journal. 12, 6, p. 1709-1718 10 p., 6086704.

    Research output: Contribution to journalArticle

    82 Scopus citations

    Vector space formulation of probabilistic finite state automata

    Wen, Y. & Ray, A., Jul 1 2012, In : Journal of Computer and System Sciences. 78, 4, p. 1127-1141 15 p.

    Research output: Contribution to journalArticle

    4 Scopus citations
    2011

    Anomaly detection in nuclear power plants via symbolic dynamic filtering

    Jin, X., Guo, Y., Sarkar, S., Ray, A. & Edwards, R. M., Feb 1 2011, In : IEEE Transactions on Nuclear Science. 58, 1 PART 2, p. 277-288 12 p., 5654618.

    Research output: Contribution to journalArticle

    24 Scopus citations

    Data-driven fault detection in aircraft engines with noisy sensor measurements

    Sarkar, S., Jin, X. & Ray, A., Apr 21 2011, In : Journal of Engineering for Gas Turbines and Power. 133, 8, 081602.

    Research output: Contribution to journalArticle

    48 Scopus citations

    Distributed network control for mobile multi-modal wireless sensor networks

    Bein, D., Wen, Y., Phoha, S., Madan, B. B. & Ray, A., Mar 1 2011, In : Journal of Parallel and Distributed Computing. 71, 3, p. 460-470 11 p.

    Research output: Contribution to journalArticle

    9 Scopus citations

    On the discriminability of keystroke feature vectors used in fixed text keystroke authentication

    Balagani, K. S., Phoha, V. V., Ray, A. & Phoha, S., May 1 2011, In : Pattern Recognition Letters. 32, 7, p. 1070-1080 11 p.

    Research output: Contribution to journalArticle

    40 Scopus citations

    Real-time adaptation of decision thresholds in sensor networks for detection of moving targets

    Mukherjee, K., Ray, A., Wettergren, T., Gupta, S. & Phoha, S., Jan 1 2011, In : Automatica. 47, 1, p. 185-191 7 p.

    Research output: Contribution to journalArticle

    6 Scopus citations

    Statistical-mechanics-inspired optimization of sensor field configuration for detection of mobile targets

    Mukherjee, K., Gupta, S., Ray, A. & Wettergren, T. A., Jun 1 2011, In : IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics. 41, 3, p. 783-791 9 p., 5669356.

    Research output: Contribution to journalArticle

    23 Scopus citations

    Symbolic analysis of sonar data for underwater target detection

    Mukherjee, K., Gupta, S., Ray, A. & Phoha, S., Apr 1 2011, In : IEEE Journal of Oceanic Engineering. 36, 2, p. 219-230 12 p., 5766777.

    Research output: Contribution to journalArticle

    29 Scopus citations

    Wavelet-based feature extraction using probabilistic finite state automata for pattern classification

    Jin, X., Gupta, S., Mukherjee, K. & Ray, A., Jul 1 2011, In : Pattern Recognition. 44, 7, p. 1343-1356 14 p.

    Research output: Contribution to journalArticle

    44 Scopus citations
    2010

    Analytic signal space partitioning and symbolic dynamic filtering for degradation monitoring of electric motors

    Chakraborty, S., Ray, A., Subbu, A. & Keller, E., Nov 1 2010, In : Signal, Image and Video Processing. 4, 4, p. 399-403 5 p.

    Research output: Contribution to journalArticle

    9 Scopus citations

    A stopping rule for symbolic dynamic filtering

    Wen, Y. & Ray, A., Sep 1 2010, In : Applied Mathematics Letters. 23, 9, p. 1125-1128 4 p.

    Research output: Contribution to journalArticle

    4 Scopus citations

    Integrated robust and resilient control of nuclear power plants for operational safety and high performance

    Jin, X., Ray, A. & Edwards, R. M., Apr 1 2010, In : IEEE Transactions on Nuclear Science. 57, 2 PART 2, p. 807-817 11 p., 5446479.

    Research output: Contribution to journalArticle

    14 Scopus citations
    1 Scopus citations

    Self-organization of sensor networks for detection of pervasive faults

    Srivastav, A. & Ray, A., Feb 1 2010, In : Signal, Image and Video Processing. 4, 1, p. 99-104 6 p.

    Research output: Contribution to journalArticle

    1 Scopus citations

    Symbolic dynamic analysis of surface deformation during fatigue crack initiation

    Singh, D. S., Gupta, S. & Ray, A., Jan 1 2010, In : Measurement Science and Technology. 21, 4, 043003.

    Research output: Contribution to journalArticle

    8 Scopus citations

    Symbolic dynamic filtering for image analysis: Theory and experimental validation

    Subbu, A., Srivastav, A., Ray, A. & Keller, E., Jan 1 2010, In : Signal, Image and Video Processing. 4, 3, p. 319-329 11 p.

    Research output: Contribution to journalArticle

    4 Scopus citations
    2009
    7 Scopus citations

    An information-theoretic measure for anomaly detection in complex dynamical systems

    Srivastav, A., Ray, A. & Gupta, S., Feb 1 2009, In : Mechanical Systems and Signal Processing. 23, 2, p. 358-371 14 p.

    Research output: Contribution to journalArticle

    9 Scopus citations

    Asynchronous data-driven classification of weapon systems

    Jin, X., Mukherjee, K., Gupta, S., Ray, A., Phoha, S. & Damarla, T., Dec 22 2009, In : Measurement Science and Technology. 20, 12, 123001.

    Research output: Contribution to journalArticle

    5 Scopus citations

    Autonomous robot navigation using optimal control of probabilistic regular languages

    Mallapragada, G., Chattopadhyay, I. & Ray, A., Jan 1 2009, In : International Journal of Control. 82, 1, p. 13-26 14 p.

    Research output: Contribution to journalArticle

    4 Scopus citations

    Early detection of stator voltage imbalance in three-phase induction motors

    Samsi, R., Ray, A. & Mayer, J., Jan 1 2009, In : Electric Power Systems Research. 79, 1, p. 239-245 7 p.

    Research output: Contribution to journalArticle

    16 Scopus citations

    Generalization of Hilbert transform for symbolic analysis of noisy signals

    Sarkar, S., Mukherjee, K. & Ray, A., Jun 1 2009, In : Signal Processing. 89, 6, p. 1245-1251 7 p.

    Research output: Contribution to journalArticle

    20 Scopus citations

    Generalized Ising model for dynamic adaptation in autonomous systems

    Gupta, S., Ray, A. & Phoha, S., Aug 25 2009, In : EPL. 87, 1, 10009.

    Research output: Contribution to journalArticle

    19 Scopus citations
    3 Scopus citations

    Objective classification of two-phase flow regimes via ultrasonic signals

    Talley, J. D., Chakraborty, S., Keller, E., Ray, A. & Kim, S., 2009, In : Transactions of the American Nuclear Society. 100, p. 734-735 2 p.

    Research output: Contribution to journalArticle

    Statistical estimation of multiple faults in aircraft gas turbine engines

    Sarkar, S., Rao, C. & Ray, A., Jun 1 2009, In : Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. 223, 4, p. 415-424 10 p.

    Research output: Contribution to journalArticle

    8 Scopus citations

    Statistical estimation of multiple parameters via symbolic dynamic filtering

    Rao, C., Mukherjee, K., Sarkar, S. & Ray, A., Jun 1 2009, In : Signal Processing. 89, 6, p. 981-988 8 p.

    Research output: Contribution to journalArticle

    4 Scopus citations

    Statistical mechanics of complex systems for pattern identification

    Gupta, S. & Ray, A., Jan 1 2009, In : Journal of Statistical Physics. 134, 2, p. 337-364 28 p.

    Research output: Contribution to journalArticle

    27 Scopus citations

    Supervised self-organization of homogeneous swarms using ergodic projections of markov chains

    Chattopadhyay, I. & Ray, A., Oct 8 2009, In : IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics. 39, 6, p. 1505-1515 11 p.

    Research output: Contribution to journalArticle

    23 Scopus citations

    V*: A robot path planning algorithm based on renormalised measure of probabilistic regular languages

    Chattopadhyay, I., Mallapragada, G. & Ray, A., May 1 2009, In : International Journal of Control. 82, 5, p. 849-867 19 p.

    Research output: Contribution to journalArticle

    10 Scopus citations

    Void fraction measurement in two-phase flow processes via symbolic dynamic filtering of ultrasonic signals

    Chakraborty, S., Keller, E., Talley, J., Srivastav, A., Ray, A. & Kim, S., Jan 1 2009, In : Measurement Science and Technology. 20, 2, 023001.

    Research output: Contribution to journalArticle

    21 Scopus citations
    2008

    A carbon monoxide sensor in polymer electrolyte fuel cells based on symbolic dynamic filtering

    Bhambare, K. S., Gupta, S., Mench, M. M. & Ray, A., Sep 25 2008, In : Sensors and Actuators, B: Chemical. 134, 2, p. 803-815 13 p.

    Research output: Contribution to journalArticle

    13 Scopus citations
    7 Scopus citations

    Anomaly detection in flexible mechanical couplings via symbolic time series analysis

    Khatkhate, A., Gupta, S., Ray, A. & Patankar, R., Apr 8 2008, In : Journal of Sound and Vibration. 311, 3-5, p. 608-622 15 p.

    Research output: Contribution to journalArticle

    11 Scopus citations

    Automated behaviour recognition in mobile robots using symbolic dynamic filtering

    Mallapragada, G., Chattopadhyay, I. & Ray, A., Oct 6 2008, In : Proceedings of the Institution of Mechanical Engineers. Part I: Journal of Systems and Control Engineering. 222, 6, p. 409-424 16 p.

    Research output: Contribution to journalArticle

    9 Scopus citations

    Damage monitoring of refractory wall in a generic entrained-bed slagging gasification system

    Chakraborty, S., Sarkar, S., Gupta, S. & Ray, A., Dec 1 2008, In : Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy. 222, 8, p. 791-807 17 p.

    Research output: Contribution to journalArticle

    11 Scopus citations

    Data-driven fault detection and estimation in thermal pulse combustors

    Chakraborty, S., Gupta, S., Ray, A. & Mukhopadhyay, A., Dec 15 2008, In : Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. 222, 8, p. 1097-1108 12 p.

    Research output: Contribution to journalArticle

    14 Scopus citations

    Estimation of slowly varying parameters in nonlinear systems via symbolic dynamic filtering

    Rajagopalan, V., Chakraborty, S. & Ray, A., Feb 1 2008, In : Signal Processing. 88, 2, p. 339-348 10 p.

    Research output: Contribution to journalArticle

    19 Scopus citations

    Failure precursor detection in complex electrical systems using symbolic dynamics

    Patankar, R. P., Rajagopalan, V. & Ray, A., Jan 1 2008, In : International Journal of Signal and Imaging Systems Engineering. 1, 1, p. 68-77 10 p.

    Research output: Contribution to journalArticle

    5 Scopus citations

    Fault detection and isolation in aircraft gas turbine engines. Part 1: Underlying concept

    Gupta, S., Ray, A., Sarkar, S. & Yasar, M., Jun 30 2008, In : Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. 222, 3, p. 307-318 12 p.

    Research output: Contribution to journalArticle

    40 Scopus citations

    Fault detection and isolation in aircraft gas turbine engines. Part 2: Validation on a simulation test bed

    Sarkar, S., Yasar, M., Gupta, S., Ray, A. & Mukherjee, K., Jun 30 2008, In : Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. 222, 3, p. 319-330 12 p.

    Research output: Contribution to journalArticle

    26 Scopus citations