Gas distribution modeling using sparse Gaussian process mixture models

Cyrill Stachniss, Christian Plagemann, Achim Lilienthal, Wolfram Burgard

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

20 Zitate (Scopus)

Abstract

In this paper, we consider the problem of learning a two dimensional spatial model of a gas distribution with a mobile robot. Building maps that can be used to accurately predict the gas concentration at query locations is a challenging task due to the chaotic nature of gas dispersal. We present an approach that formulates this task as a regression problem. To deal with the specific properties of typical gas distributions, we propose a sparse Gaussian process mixture model. This allows us to accurately represent the smooth background signal as well as areas of high concentration. We integrate the sparsification of the training data into an EM procedure used for learning the mixture components and the gating function. Our approach has been implemented and tested using datasets recorded with a real mobile robot equipped with an electronic nose. We demonstrate that our models are well suited for predicting gas concentrations at new query locations and that they outperform alternative methods used in robotics to carry out in this task.

OriginalspracheEnglisch
TitelRobotics
UntertitelScience and Systems IV
Redakteure/-innenJeff Trinkle, Oliver Brock, Fabio Ramos
Herausgeber (Verlag)MIT Press Journals
Seiten310-317
Seitenumfang8
ISBN (Print)9780262513098
DOIs
PublikationsstatusVeröffentlicht - 2009
Extern publiziertJa
VeranstaltungInternational Conference on Robotics Science and Systems, RSS 2008 - Zurich, Schweiz
Dauer: 25 Juni 200828 Juni 2008

Publikationsreihe

NameRobotics: Science and Systems
Band4
ISSN (elektronisch)2330-765X

Konferenz

KonferenzInternational Conference on Robotics Science and Systems, RSS 2008
Land/GebietSchweiz
OrtZurich
Zeitraum25/06/0828/06/08

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