Adapting Gaussian processes for cross-device Wi-Fi localization

Hsiao Chieh Yen, Chieh-Chih Wang

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

4 Scopus citations

Abstract

We investigate the use of linear adaptation on Gaussian processes for Wi-Fi localization in a cross-device setting. We focus on the case where one has a training set collected with one or more devices and a very small labeled adaptation set from the test device. We first present an algorithm to find reliable linear fits between a training set and a small adaptation set by exploiting the Gaussian process assumption that all measurements are spatially correlated. Such regression algorithm is more reliable than total least squares when the adaptation set is very small. Second, we show that the regression misfit can be used to model the additional uncertainty in a linearly adapted map for cross-device Wi-Fi localization. When such uncertainty estimate is used to fuse Gaussian process maps created from one or more training sets and an adaptation set, localization performance can be greatly improved given just a few adaptation samples.

Original languageEnglish
Title of host publication2013 International Conference on Indoor Positioning and Indoor Navigation, IPIN 2013
PublisherIEEE Computer Society
ISBN (Print)9781479940431
DOIs
StatePublished - 1 Jan 2013
Event2013 International Conference on Indoor Positioning and Indoor Navigation, IPIN 2013 - Montbeliard-Belfort, France
Duration: 28 Oct 201331 Oct 2013

Publication series

Name2013 International Conference on Indoor Positioning and Indoor Navigation, IPIN 2013

Conference

Conference2013 International Conference on Indoor Positioning and Indoor Navigation, IPIN 2013
CountryFrance
CityMontbeliard-Belfort
Period28/10/1331/10/13

Keywords

  • device diversity
  • Gaussian processes
  • linear regression
  • received signal strength localization
  • Wi-Fi localization

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  • Cite this

    Yen, H. C., & Wang, C-C. (2013). Adapting Gaussian processes for cross-device Wi-Fi localization. In 2013 International Conference on Indoor Positioning and Indoor Navigation, IPIN 2013 [6817917] (2013 International Conference on Indoor Positioning and Indoor Navigation, IPIN 2013). IEEE Computer Society. https://doi.org/10.1109/IPIN.2013.6817917