Decentralized M-ary detection via hierarchical binary decision fusion

Qian Zhang, Pramod K. Varshney

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


We consider the distributed M-ary detection problem. The M-ary decision-making process is implemented via a sequence of binary decision-making processes. The resulting binary decisions represent a hierarchical partition of the M-ary object space, which is organized in the form of a binary decision tree. This approach breaks a complex M-ary decision fusion problem into a set of much simpler binary decision fusion problems. We first develop a method for partitioning the M-ary object space. We then obtain the optimal decision rules that the fusion center and the sensors employ at the internal nodes of the binary decision tree. The results are illustrated in an example.

Original languageEnglish (US)
Pages (from-to)3-16
Number of pages14
JournalInformation Fusion
Issue number1
StatePublished - Mar 19 2001


  • Bhattacharyya distance
  • Binary decision tree classifiers
  • Binary decision trees
  • Decision fusion
  • Multisensor fusion
  • Statistical distance measures

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Information Systems
  • Hardware and Architecture


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