Presentation 2015-12-04
Method for Detecting Explicit Structural Changes in Time Series Data
Akira Kasuga, Yukio Ohsawa, Takaaki Yoshino, Shunichi Ashida,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In recent years, Anomaly Detection is noticed in order to prevent a risk, perform security system and analyze behaviors. It is common to define the anomaly values using the probabilistic distribution estimation wherein the latent variable is assumed in Anomaly Detection. However, the data we can obtain in business are often heterogeneous and deficient. If the exiting methods are applied to heterogeneous and deficient data, it is difficult to analyze these data accurately and make a decision because the latent variable models result in complicated. In this paper, we propose the method that can detect explicit structural changes from high dimensional data of time series with the aim of detecting changes without assuming the latent variables.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Change-Point Detection / Time Series / Explicit Change / Chance Discovery / Affinity Propagation
Paper # AI2015-21
Date of Issue 2015-11-27 (AI)

Conference Information
Committee AI
Conference Date 2015/12/4(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Kyutech-Salite
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Toshiharu Sugawara(Waseda Univ.)
Vice Chair Tsunenori Mine(Kyushu Univ.) / Daisuke Katagami(Tokyo Polytechnic Univ.)
Secretary Tsunenori Mine(Ritsumeikan Univ.) / Daisuke Katagami(Shizuoka Univ.)
Assistant Yuichi Sei(Univ. of Electro-Comm.)

Paper Information
Registration To Technical Committee on Artificial Intelligence and Knowledge-Based Processing
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Method for Detecting Explicit Structural Changes in Time Series Data
Sub Title (in English)
Keyword(1) Change-Point Detection
Keyword(2) Time Series
Keyword(3) Explicit Change
Keyword(4) Chance Discovery
Keyword(5) Affinity Propagation
1st Author's Name Akira Kasuga
1st Author's Affiliation University of Tokyo(UTokyo)
2nd Author's Name Yukio Ohsawa
2nd Author's Affiliation University of Tokyo(UTokyo)
3rd Author's Name Takaaki Yoshino
3rd Author's Affiliation Daiwa Securities Co. Ltd.(Daiwa Securities)
4th Author's Name Shunichi Ashida
4th Author's Affiliation Daiwa Securities Co. Ltd.(Daiwa Securities)
Date 2015-12-04
Paper # AI2015-21
Volume (vol) vol.115
Number (no) AI-337
Page pp.pp.51-55(AI),
#Pages 5
Date of Issue 2015-11-27 (AI)