Improving Inference for Spatial Signals by Contextual False Discovery Rates

Martin Gölz*, Abdelhak M. Zoubir, Visa Koivunen

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsScientificvertaisarvioitu

2 Sitaatiot (Scopus)
47 Lataukset (Pure)

Abstrakti

A spatial signal is monitored by a large-scale sensor network. We propose a novel method to identify areas where the signal behaves interestingly, anomalously, or simply differently from what is expected. The sensors pre-process their measurements locally and transmit a local summary statistic to a fusion center or a cloud. This saves bandwidth and energy. The fusion center or cloud computes a spatially varying empirical Bayes prior on the signal's spatial behavior. The spatial domain is modeled as a fine discrete grid. The contextual local false discovery rate is computed for each grid point. A decision on the local state of the signal is made for each grid point, hence, many decisions are made simultaneously. A multiple hypothesis testing approach with false discovery rate control is used. The proposed procedure estimates the areas of interesting signal behavior with higher precision than existing methods. No tuning parameters have to be defined by the user.

AlkuperäiskieliEnglanti
Otsikko2022 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2022 - Proceedings
KustantajaIEEE
Sivut5967-5971
Sivumäärä5
ISBN (elektroninen)978-1-6654-0540-9
DOI - pysyväislinkit
TilaJulkaistu - 2022
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaIEEE International Conference on Acoustics, Speech, and Signal Processing - Singapore, Singapore
Kesto: 23 toukok. 202227 toukok. 2022

Julkaisusarja

NimiIEEE International Conference on Acoustics, Speech and Signal Processing
Vuosikerta2022-May
ISSN (painettu)1520-6149

Conference

ConferenceIEEE International Conference on Acoustics, Speech, and Signal Processing
LyhennettäICASSP
Maa/AlueSingapore
KaupunkiSingapore
Ajanjakso23/05/202227/05/2022

Sormenjälki

Sukella tutkimusaiheisiin 'Improving Inference for Spatial Signals by Contextual False Discovery Rates'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

Siteeraa tätä