Asok Ray

    • 6887 Citations
    • 36 h-Index
    1976 …2019
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    Research Output 1976 2019

    2012

    Adaptation in symbolic dynamic systems for pattern classification

    Wen, Y., Mukherjee, K. & Ray, A., Nov 26 2012, 2012 American Control Conference, ACC 2012. p. 697-702 6 p. 6314678. (Proceedings of the American Control Conference).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Pattern recognition
    Dynamical systems
    Finite automata
    Classifiers
    Uncertainty
    13 Citations (Scopus)

    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

    Finite State Automata
    Inner product space
    Finite automata
    Formulation
    Algebraic Approach

    A unified framework for supervised learning of semantic models

    Wen, Y., Sarkar, S., Ray, A., Jin, X. & Damarla, T., 2012, 2012 American Control Conference, ACC 2012. p. 2183-2188 6 p. 6314719

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Supervised learning
    Finite automata
    Semantics
    Hilbert spaces
    Discriminant analysis

    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

    Sensor networks
    Sensor Networks
    Fusion
    Target
    Data fusion

    Distributed decision propagation in mobile agent networks

    Sarkar, S., Mukherjee, K. & Ray, A., 2012, 2012 American Control Conference, ACC 2012. p. 5276-5281 6 p. 6314846

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Mobile agents
    Parallel algorithms
    Topology
    Experiments
    6 Citations (Scopus)

    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

    crack initiation
    fractals
    interferometry
    damage
    surface cracks
    9 Citations (Scopus)

    Multi-resolution navigation of mobile robots with complete coverage of unknown and complex environments

    Jin, X., Gupta, S., Luff, J. M. & Ray, A., 2012, 2012 American Control Conference, ACC 2012. p. 4867-4872 6 p. 6314800

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Mobile robots
    Navigation
    Cleaning
    Hazards
    Simulators
    3 Citations (Scopus)

    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

    Ultrasonic measurement
    Ultrasonics
    Fatigue
    Ultrasonic sensors
    Stochastic models
    16 Citations (Scopus)

    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

    Pattern recognition
    Feature extraction
    Time series
    Fatigue damage
    Identification (control systems)
    8 Citations (Scopus)

    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

    Statistical mechanics
    Telecommunication networks
    Phase diagrams
    Phase transitions
    Thermodynamics
    18 Citations (Scopus)

    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

    Risk analysis
    Principal component analysis
    Mobile robots
    Pattern recognition
    Feature extraction
    8 Citations (Scopus)

    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

    Fault detection
    Gas turbines
    Turbines
    Aircraft
    Aircraft engines
    8 Citations (Scopus)

    Symbolic transient time-series analysis for fault detection in aircraft gas turbine engines

    Sarkar, S., Mukherjee, K., Sarkar, S. & Ray, A., Nov 26 2012, 2012 American Control Conference, ACC 2012. p. 5132-5137 6 p. 6315253. (Proceedings of the American Control Conference).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Time series analysis
    Fault detection
    Gas turbines
    Turbines
    Aircraft
    67 Citations (Scopus)

    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

    Target tracking
    sensors
    Sensors
    false alarms
    payloads
    4 Citations (Scopus)

    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

    Finite State Automata
    Finite automata
    Vector spaces
    Vector space
    Formulation
    2011
    21 Citations (Scopus)

    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

    nuclear power plants
    Nuclear power plants
    anomalies
    sensors
    Sensors
    45 Citations (Scopus)

    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

    Aircraft engines
    Fault detection
    Sensors
    Propulsion
    Pattern recognition
    8 Citations (Scopus)

    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

    Distributed Networks
    Sensor networks
    Wireless Sensor Networks
    Wireless sensor networks
    Data Quality
    3 Citations (Scopus)

    GODDeS: Globally ∈-Optimal routing via Distributed Decision-theoretic Self-organization

    Chattopadhyay, I. & Ray, A., 2011, Proceedings of the 2011 American Control Conference, ACC 2011. p. 3215-3220 6 p. 5991451

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Formal languages
    Routing algorithms
    Polynomials
    11 Citations (Scopus)

    Information fusion for object & situation assessment in sensor networks

    Srivastav, A., Wen, Y., Hendrick, E., Chattopadhyay, I., Ray, A. & Phoha, S., Sep 29 2011, Proceedings of the 2011 American Control Conference, ACC 2011. p. 1274-1279 6 p. 5991171. (Proceedings of the American Control Conference).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Information fusion
    Sensor networks
    Data fusion
    Finite automata
    Pattern recognition
    3 Citations (Scopus)

    Modeling of symbolic systems: Part II - Hilbert space construction for model identification and order reduction

    Wen, Y., Ray, A., Chattopadhyay, I. & Phoha, S., Sep 29 2011, Proceedings of the 2011 American Control Conference, ACC 2011. p. 5139-5144 6 p. 5990620

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Hilbert spaces
    Finite automata
    Identification (control systems)
    Vector spaces
    3 Citations (Scopus)

    Modeling of symbolic systems: Part I - Vector space representation of probabilistic finite state automata

    Wen, Y., Ray, A., Chattopadhyay, I. & Phoha, S., Sep 29 2011, Proceedings of the 2011 American Control Conference, ACC 2011. p. 5133-5138 6 p. 5990763. (Proceedings of the American Control Conference).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Finite automata
    Vector spaces
    White noise
    7 Citations (Scopus)

    Multimodal sensor fusion for personnel detection

    Jin, X., Gupta, S., Ray, A. & Damarla, T., Sep 13 2011, Fusion 2011 - 14th International Conference on Information Fusion. 5977675. (Fusion 2011 - 14th International Conference on Information Fusion).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Fusion reactions
    Personnel
    Sensors
    Finite automata
    Target tracking
    34 Citations (Scopus)

    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

    Authentication
    Feature extraction
    Agglomeration
    Experiments

    Optimal partitioning of ultrasonic data for fatigue damage detection

    Singh, D. S., Sarkar, S., Gupta, S. & Ray, A., Sep 29 2011, Proceedings of the 2011 American Control Conference, ACC 2011. p. 798-803 6 p. 5991263. (Proceedings of the American Control Conference).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Damage detection
    Fatigue damage
    Ultrasonics
    Ultrasonic sensors
    Pattern recognition
    6 Citations (Scopus)

    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

    Sensor networks
    Time series
    Decision making
    Formal languages
    Sensors

    Real-time fatigue damage monitoring via in situ ultrasonic sensing

    Gupta, S. & Ray, A., Jan 1 2011, Fatigue Crack Growth: Mechanics, Behavior and Prediction. Nova Science Publishers, Inc., p. 3-48 46 p.

    Research output: Chapter in Book/Report/Conference proceedingChapter

    ultrasonics
    damage
    pattern recognition
    Turing machines
    fatigue tests
    3 Citations (Scopus)

    Semantic sensor fusion for fault diagnosis in aircraft gas turbine engines

    Sarkar, S., Singh, D. S., Srivastav, A. & Ray, A., Sep 29 2011, Proceedings of the 2011 American Control Conference, ACC 2011. p. 220-225 6 p. 5991168. (Proceedings of the American Control Conference).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Failure analysis
    Gas turbines
    Turbines
    Semantics
    Aircraft
    9 Citations (Scopus)

    State splitting and state merging in probabilistic finite state automata

    Adenis, P., Mukherjee, K. & Ray, A., Sep 29 2011, Proceedings of the 2011 American Control Conference, ACC 2011. p. 5145-5150 6 p. 5990861

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Finite automata
    Merging
    Probability distributions
    Dynamical systems
    History
    22 Citations (Scopus)

    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

    Statistical mechanics
    Mechanics
    Sensors
    Temperature
    Sensor networks
    22 Citations (Scopus)

    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

    Sonar
    Target tracking
    Automata theory
    Autonomous underwater vehicles
    Military operations
    5 Citations (Scopus)

    Symbolic dynamic filtering of seismic sensors for target detection and classification

    Jin, X., Gupta, S., Ray, A. & Damarla, T., Sep 29 2011, Proceedings of the 2011 American Control Conference, ACC 2011. p. 5151-5156 6 p. 5990813. (Proceedings of the American Control Conference).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Target tracking
    Sensors
    Finite automata
    Pattern recognition
    Infiltration

    Symbolic encoding of analytic signals for structural monitoring of power systems

    Yasar, M., Chakraborty, S., Keller, E., Bajpai, G. & Ray, A., Sep 29 2011, Proceedings of the 2011 American Control Conference, ACC 2011. p. 5157-5162 6 p. 5990760

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Condition monitoring
    Crack initiation
    MATLAB
    Telecommunication networks
    Microprocessor chips
    6 Citations (Scopus)

    Unsupervised inductive learning in symbolic sequences via recursive identification of self-similar semantics

    Chattopadhyay, I., Wen, Y., Ray, A. & Phoha, S., 2011, Proceedings of the 2011 American Control Conference, ACC 2011. p. 125-130 6 p. 5991453

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Semantics
    Finite automata
    44 Citations (Scopus)

    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

    Finite automata
    Pattern recognition
    Feature extraction
    Time series
    Structural health monitoring
    2010

    A decision-theoretic model of selection modulated intra-host antigenic variation for multi-strain pathogens

    Chattopadhyay, I., Mohinta, S. & Ray, A., Oct 18 2010, Proceedings of the 2010 American Control Conference, ACC 2010. p. 454-459 6 p. 5530990. (Proceedings of the 2010 American Control Conference, ACC 2010).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Pathogens
    8 Citations (Scopus)

    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

    Electric motors
    Synchronous motors
    Permanent magnets
    Degradation
    Monitoring
    4 Citations (Scopus)

    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

    Finite State Automata
    Stopping Rule
    Symbolic Dynamics
    Confidence Level
    Finite automata
    2 Citations (Scopus)

    Autonomous vehicle navigation with dynamic adaptation and complete coverage of unknown environments

    Jin, X., Luff, J. M., Gupta, S. & Ray, A., Dec 1 2010, ASME 2010 Dynamic Systems and Control Conference, DSCC2010. Vol. 1. p. 241-248 8 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Navigation
    Ising model
    Statistical mechanics
    Cleaning
    Hazards
    3 Citations (Scopus)

    Critical phenomena and finite-size scaling in communication networks

    Sarkar, S., Mukherjee, K., Srivastav, A. & Ray, A., Oct 15 2010, Proceedings of the 2010 American Control Conference, ACC 2010. p. 271-276 6 p. 5530594. (Proceedings of the 2010 American Control Conference, ACC 2010).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Telecommunication networks
    Phase transitions
    Statistical mechanics

    Data-driven fault detection in nuclear power plants under sensor degradation

    Jin, X., Guo, Y., Edwards, R. M. & Ray, A., 2010, 7th International Topical Meeting on Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies 2010, NPIC and HMIT 2010. Vol. 3. p. 1586-1599 14 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Fault detection
    Nuclear power plants
    Degradation
    Sensors
    Statistical mechanics
    3 Citations (Scopus)

    Distributed decision propagation in mobile agent networks?

    Sarkar, S., Mukherjee, K., Srivastav, A. & Ray, A., Dec 1 2010, 2010 49th IEEE Conference on Decision and Control, CDC 2010. p. 633-638 6 p. 5717036. (Proceedings of the IEEE Conference on Decision and Control).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Mobile agents
    Mobile Agent
    Time varying networks
    Topology
    Propagation
    1 Citation (Scopus)

    Feature extraction for data-driven fault detection in nuclear power plants

    Jin, X., Edwards, R. M. & Ray, A., 2010, In : Transactions of the American Nuclear Society. 102, p. 163-164 2 p.

    Research output: Contribution to journalArticle

    Fault detection
    Nuclear power plants
    Feature extraction
    14 Citations (Scopus)

    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

    nuclear power plants
    Nuclear power plants
    safety
    Robust control
    emergencies
    1 Citation (Scopus)

    Mathematical foundations of sensor network design based on linguistic informatics

    Chattopadhyay, I., Wen, Y., Phoha, S. & Ray, A., Oct 15 2010, Proceedings of the 2010 American Control Conference, ACC 2010. p. 1073-1078 6 p. 5530774. (Proceedings of the 2010 American Control Conference, ACC 2010).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Linguistics
    Sensor networks
    Nonlinear filtering
    Fusion reactions
    Communication
    1 Citation (Scopus)

    Minimum rotation partitioning for data analysis and its application to fault detection

    Yasar, M., Ray, A. & Kwatny, H. G., Oct 15 2010, Proceedings of the 2010 American Control Conference, ACC 2010. p. 5439-5444 6 p. 5530853. (Proceedings of the 2010 American Control Conference, ACC 2010).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Fault detection
    Nonlinear analysis
    Permanent magnets
    Time series
    Dynamical systems
    1 Citation (Scopus)
    Formal languages
    State feedback

    Optimization of time-series data partitioning for parameter identification

    Sarkar, S., Mukherjee, K., Jin, X. & Ray, A., Dec 1 2010, ASME 2010 Dynamic Systems and Control Conference, DSCC2010. p. 867-874 8 p. (ASME 2010 Dynamic Systems and Control Conference, DSCC2010; vol. 1).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Time series
    Identification (control systems)
    Nonlinear dynamical systems
    Finite automata
    Pattern recognition
    1 Citation (Scopus)

    Pattern Classification in symbolic streams via semantic annihilation of information

    Chattopadhyay, I., Wen, Y. & Ray, A., Oct 15 2010, Proceedings of the 2010 American Control Conference, ACC 2010. p. 492-497 6 p. 5530857. (Proceedings of the 2010 American Control Conference, ACC 2010).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Finite automata
    Pattern recognition
    Semantics
    White noise
    Experiments
    1 Citation (Scopus)

    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

    Sensor networks
    Computer viruses
    Computer networks
    Large scale systems
    Dynamical systems