Extracting personal user context with a three-axis sensor mounted on a freely carried cell phone

Toshiki Iso, Kenichi Yamazaki

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

To realize ubiquitous services such as presence services and health care services, we propose an algorithm to extract "personal user context" such as user's behavior; it processes information gathered by a three-axis accelerometer mounted on a cell phone. Our algorithm has two main functions; one is to extract feature vectors by analyzing sensor data in detail by wavelet packet decomposition. The other is to flexibly cluster personal user context by combining a self-organizing algorithm with Bayesian theory. A prototype that implements the algorithm is constructed. Experiments on the prototype show that the algorithm can identify personal user contexts such as walking, running, going up/down stairs, and walking fast with an accuracy of about 88[%].

本文言語English
ホスト出版物のタイトルSIGMAP 2006 - International Conference on Signal Processing and Multimedia Applications, Proceedings
ページ224-231
ページ数8
出版ステータスPublished - 2006 12 1
外部発表はい
イベントInternational Conference on Signal Processing and Multimedia Applications, SIGMAP 2006 - Setubal, Portugal
継続期間: 2006 8 72006 8 10

出版物シリーズ

名前SIGMAP 2006 - International Conference on Signal Processing and Multimedia Applications, Proceedings

Conference

ConferenceInternational Conference on Signal Processing and Multimedia Applications, SIGMAP 2006
国/地域Portugal
CitySetubal
Period06/8/706/8/10

ASJC Scopus subject areas

  • コンピュータ グラフィックスおよびコンピュータ支援設計
  • 人間とコンピュータの相互作用

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