| Presentation | 2014-03-13 Discovery of Spatio-Temporal Patterns from Foursquare by Diffusion-type Estimation and ICA Yoshitatsu MATSUDA, Kazunori YAMAGUCHI, Ken-ichiro NISHIOKA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we extract various patterns of the spatio-temporal distribution from Foursquare data. For extracting patterns, we employ ICA (Independent Component Analysis), which is a widely-used method in signal processing and feature extraction. Because the Foursquare data consists of check-in's at some time points and locations, ICA is not directly applicable to the data. In order to smooth the data, we estimate a continuous spatio-temporal distribution by employing a diffusion-type formula. The experiments on the actual Foursquare dataset showed that the proposed method could extract some plausible and interesting spatio-temporal patterns. They also suggested that the estimation with the proposed method is promising when the sample size is limited. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | spatio-temporal pattern / diffusion-type estimation / independent component analysis |
| Paper # | PRMU2013-173 |
| Date of Issue |
| Conference Information | |
| Committee | PRMU |
|---|---|
| Conference Date | 2014/3/6(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Pattern Recognition and Media Understanding (PRMU) |
|---|---|
| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Discovery of Spatio-Temporal Patterns from Foursquare by Diffusion-type Estimation and ICA |
| Sub Title (in English) | |
| Keyword(1) | spatio-temporal pattern |
| Keyword(2) | diffusion-type estimation |
| Keyword(3) | independent component analysis |
| 1st Author's Name | Yoshitatsu MATSUDA |
| 1st Author's Affiliation | Department of General Systems Studies, The University of Tokyo() |
| 2nd Author's Name | Kazunori YAMAGUCHI |
| 2nd Author's Affiliation | Department of General Systems Studies, The University of Tokyo |
| 3rd Author's Name | Ken-ichiro NISHIOKA |
| 3rd Author's Affiliation | Department of General Systems Studies, The University of Tokyo |
| Date | 2014-03-13 |
| Paper # | PRMU2013-173 |
| Volume (vol) | vol.113 |
| Number (no) | 493 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |