• DocumentCode
    615265
  • Title

    An artificial language for data-driven self-adaptation of networked robots in dynamic environments

  • Author

    Phoha, Shashi ; Ray, Avik

  • Author_Institution
    Inf. Sci. & Technol. Div., Pennsylvania State Univ., University Park, PA, USA
  • fYear
    2013
  • fDate
    26-28 April 2013
  • Firstpage
    186
  • Lastpage
    194
  • Abstract
    The interactive dynamics of goal-oriented multi-agent networked robots with on-board sensing, computation, and actuation devices, present a complex distributed computational environment of high dimensionality. The generating physics of such a system operating in an uncertain environment can be adequately captured in an artificial language that expresses the causal patterns observable in sensor data with maximal compression while preserving the statistical predictability of system states under Markovian assumptions. Hence it enables time-constrained in-situ distributed computation, communication, and data-driven adaptive control in resource-constrained uncertain operational environments. The multivariate sensor data is partitioned and symbolized for deriving the alphabet of the language. Observed data from multiple sensors is expressed as a univariate sequence of symbols from this alphabet. The semantics of the language are extracted from the observed data streams as invariant patterns which capture the essential causal structure of the dynamic system. An undersea mine-hunting mission using an undersea robot with on-board side-scan sonar is used to illustrate the development and use of this physics-driven computational language for time-constrained situational awareness and adaptive control.
  • Keywords
    Markov processes; adaptive control; autonomous underwater vehicles; distributed processing; mining; multi-agent systems; multi-robot systems; networked control systems; self-adjusting systems; sensors; sonar; Markovian assumptions; actuation devices; artificial language; complex distributed computational environment; data-driven adaptive control; data-driven networked robot self-adaptation; dynamic environments; dynamic system; essential causal structure; goal-oriented multiagent networked robots; interactive dynamics; multivariate sensor data; on-board sensing; on-board side-scan sonar; physics-driven computational language; resource-constrained uncertain operational environments; statistical predictability; time-constrained in-situ distributed computation; time-constrained situational awareness; uncertain environment; undersea mine-hunting mission; undersea robot; univariate symbol sequence; Abstracts; Awards activities; Computational modeling; Computers; Context modeling; Entropy; Lead; Data-driven adaptation; Multi-agent systems; information fusion; mine-hunting; model discovery; robotic sensor networks; self-adaptation;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Computer Science & Education (ICCSE), 2013 8th International Conference on
  • Conference_Location
    Colombo
  • Print_ISBN
    978-1-4673-4464-7
  • Type

    conf

  • DOI
    10.1109/ICCSE.2013.6553908
  • Filename
    6553908