Presentation 2022-01-21
[Short Paper] Definition of a new feature of location activeness using Inverse Discrete Fourier Transform
Shunei Inoue, Yutaka Arakawa, Shigemi Ishida,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) It is important to promote Evidence-Based Policy Making (EBPM) to conduct effective tourism policies with unique tourism resources. We are developing an EBPM platform that visualizes people flows relating to events and tourism policies. Our EBPM platform has an automatic event detector that detects ``where'' and ``how large'' an event is held. When an event is detected, the platform notifies local government officers and encourages them to enter the event information to link the event and corresponding people flow. Although, we can use anomaly detection methods to detect events from people flow data, these methods take no considerations on periodic changes in people flow. In this paper, a new feature, i.e., location activeness, is defined as time-series people flow data, excluding periodic changes. We also present an event detection method base on peak detection on the location activeness. The evaluation conducted with location data of Kyushu University Ito Campus and surrounding areas demonstrated that more than 75% of detected events were actual events, as we could find out.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Evidence-Based Policy Making (EBPM) / Location Data / Event Detection
Paper # SeMI2021-76
Date of Issue 2022-01-13 (SeMI)

Conference Information
Committee SeMI
Conference Date 2022/1/20(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Koji Yamamoto(Kyoto Univ.)
Vice Chair Kazuya Monden(Hitachi) / Yasunori Owada(NICT)
Secretary Kazuya Monden(Cyber Univ.) / Yasunori Owada(Waseda Univ.)
Assistant Yuki Katsumata(NTT DOCOMO) / Akihito Taya(Aoyama Gakuin Univ.) / Yu Nakayama(Tokyo Univ. of Agri. and Tech.)

Paper Information
Registration To Technical Committee on Sensor Network and Mobile Intelligence
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Short Paper] Definition of a new feature of location activeness using Inverse Discrete Fourier Transform
Sub Title (in English)
Keyword(1) Evidence-Based Policy Making (EBPM)
Keyword(2) Location Data
Keyword(3) Event Detection
1st Author's Name Shunei Inoue
1st Author's Affiliation Kyushu University(Kyushu Univ.)
2nd Author's Name Yutaka Arakawa
2nd Author's Affiliation Kyushu University(Kyushu Univ.)
3rd Author's Name Shigemi Ishida
3rd Author's Affiliation Kyushu University(Kyushu Univ.)
Date 2022-01-21
Paper # SeMI2021-76
Volume (vol) vol.121
Number (no) SeMI-333
Page pp.pp.92-97(SeMI),
#Pages 6
Date of Issue 2022-01-13 (SeMI)