Estimating Test Statistic Distributions for Multiple Hypothesis Testing in Sensor Networks

Martin Golz, Abdelhak M. Zoubir, Visa Koivunen

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

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Abstract

We recently proposed a novel approach to perform spatial inference using large-scale sensor networks and multiple hypothesis testing [1]. It identifies the regions in which a spatial phenomenon of interest exhibits different behavior from its nominal statistical model. To reduce the intra-sensor-network communication overhead, the raw data is pre-processed at the sensors locally and a summary statistic is send to the cloud or fusion center where the actual spatial inference using multiple hypothesis testing and false discovery control takes place. Local false discovery rates (lfdrs) are estimated to express local believes in the state of the spatial signal. In this work, we extend our approach by proposing two novel lfdr estimators stemming from the Expectation-Maximization method. The estimation bias is considered to explain the differences in performance among the compared lfdr estimators.

Original languageEnglish
Title of host publication2022 56th Annual Conference on Information Sciences and Systems, CISS 2022
PublisherIEEE
Pages90-95
Number of pages6
ISBN (Electronic)9781665417969
DOIs
Publication statusPublished - 2022
MoE publication typeA4 Article in a conference publication
EventConference on Information Sciences and Systems - Princeton, United States
Duration: 9 Mar 202211 Mar 2022
Conference number: 56

Conference

ConferenceConference on Information Sciences and Systems
Abbreviated titleCISS
Country/TerritoryUnited States
CityPrinceton
Period09/03/202211/03/2022

Keywords

  • density estimation
  • information fusion
  • Large-scale inference
  • local false discovery rate
  • sensor networks

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