Evidence updating in a heterogeneous sensor environment

K. Premaratne, D. A. Dewasurendra, P. H. Bauer

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations


Nodes in a distributed sensor network (DSN) gather and fuse information generated by heterogeneous sources to arrive at local decisions targeted at achieving a given global mission objective. These sources typically possess very diverse scopes of 'expertise' or frames of discernment (FoDs) that renders updating a knowledge base from the evidence received a challenging task. In this paper, we present a Dempster-Shafer (DS) theory based evidence updating strategy that accommodates such non-identical FoDs. It is composed of a linear combination of the available evidence and incoming evidence conditioned to the source it is being generated from. The linear combination weights can be used to accommodate differences in source reliability and 'inertia' of the existing knowledge base. Strategies to choose these weights are also proposed.

Original languageEnglish (US)
Pages (from-to)IV824-IV827
JournalProceedings - IEEE International Symposium on Circuits and Systems
StatePublished - Jul 14 2003
EventProceedings of the 2003 IEEE International Symposium on Circuits and Systems - Bangkok, Thailand
Duration: May 25 2003May 28 2003

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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