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SUMMARY:Resource-limited mobile sensor routing for parameter estimation of
  distributed systems - Patan\, M (University of Zielona Gra)
DTSTART:20110721T084500Z
DTEND:20110721T093000Z
UID:TALK32119@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:The problem of determining optimal observation strategies for 
 identification of unknown parameters in distributed-parameter system is di
 scussed. Particularly\, a setting where the measurement process is perform
 ed by collecting spatial data from mobile nodes with sensing capacity form
 ing an organized network is considered. The framework is based on the use 
 of a criterion defined on the Fisher information matrix associated with th
 e estimated parameters as a measure of the information content in the meas
 urements. Motivations stem from engineering practice\, where the clusteriz
 ation of measurements at some spatial positions and at a given time moment
  often leads to a decrease in the robustness of the observational system t
 o the model misspecification. Furthermore\, there are some technical limit
 ations imposed on the sensor paths in order to avoid collisions\, satisfy 
 energy constraints and/or provide a proper deployment of mobile sensor nod
 es. The approach is to convert the problem to a canonical optimal control 
 one in which the control forces of the sensors may be optimized. Then\, th
 rough an adaptation of some pairwise communication algorithms\, a numerica
 l scheme is developed\, which decomposes the resulting problem and distrib
 utes the computational burden between network nodes. Numerical solutions a
 re then obtained using widespread powerful numerical packages which handle
  various constraints imposed on the node motions. As a result\, an adaptiv
 e scheme is outlined to determine guidance policies for network nodes in a
  decentralized fashion. \n
LOCATION:Seminar Room 1\, Newton Institute
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