Generalized decision aggregation in distributed sensing systems

Lu Su, Qi Li, Shaohan Hu, Shiguang Wang, Jing Gao, Hengchang Liu, Tarek F. Abdelzaher, Jiawei Han, Xue Liu, Yan Gao, Lance Kaplan

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


In this paper, we present GDA, a generalized decision aggregation framework that integrates information from distributed sensor nodes for decision making in a resource efficient manner. Traditional approaches that target similar problems only take as input the discrete label information from individual sensors that observe the same events. Different from them, our proposed GDA framework is able to take advantage of the confidence information of each sensor about its decision, and thus achieves higher decision accuracy. Targeting generalized problem domains, our framework can naturally handle the scenarios where different sensor nodes observe different sets of events whose numbers of possible classes may also be different. GDA also makes no assumption about the availability level of ground truth label information, while being able to take advantage of any if present. For these reasons, our approach can be applied to a much broader spectrum of sensing scenarios. The advantages of our proposed framework are demonstrated through both theoretic analysis and extensive experiments.

Original languageEnglish (US)
Title of host publicationProceedings - IEEE 35th Real-Time Systems Symposium, RTSS 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages10
ISBN (Electronic)9781479972876
StatePublished - Jan 14 2015
Event35th IEEE Real-Time Systems Symposium, RTSS 2014 - Rome, Italy
Duration: Dec 2 2014Dec 5 2014

Publication series

NameProceedings - Real-Time Systems Symposium
ISSN (Print)1052-8725


Other35th IEEE Real-Time Systems Symposium, RTSS 2014


  • Crowd Sensing
  • Decision Aggregation
  • Distributed Sensing System
  • Participatory Sensing
  • Social Sensing

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications


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