| Presentation | 2013-02-22 Semantic Self-Organizing Map for Natural Disasters News Carlos Enrique Gutierrez, Mohamad Reza Alsharif, Rafael Villa, Katsumi Yamashita, Cuiwei He, Hayao Miyagi, Shiro Tamaki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper we explore the properties of a set of news published after a natural disaster by using SOM (Self-organizing Maps), mainly the semantic characteristics of the generated map. SOM is used to produce a low-dimensional representation of the input data space by mapping high dimensional vectors into a 2-dimensional grid. Our SOM is composed by fewer units than input vectors ; training stage produces not only a visual representation but also a set of quantization points that can be considered as groups of highly related news. In order to get semantic descriptions about map organization, news context is interpreted as a set of most frequent words that gives an idea of their "meanings". The meanings obtained forms areas that divide the map, showing automatically the semantic relation of the inputs. Firstly, online news are converted to text files and encoded as numerical vectors by applying principal component analysis (PCA). Secondly, a SOM is developed and trained. Finally, semantic descriptions are obtained for each quantization point by interpreting the news contexts. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | artificial intelligence / neural networks / self / organizing map / Kohonen networks / data mining / clustering / principal component analysis / semantic network |
| Paper # | SAT2012-58 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2013/2/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Semantic Self-Organizing Map for Natural Disasters News |
| Sub Title (in English) | |
| Keyword(1) | artificial intelligence |
| Keyword(2) | neural networks |
| Keyword(3) | self |
| Keyword(4) | organizing map |
| Keyword(5) | Kohonen networks |
| Keyword(6) | data mining |
| Keyword(7) | clustering |
| Keyword(8) | principal component analysis |
| Keyword(9) | semantic network |
| 1st Author's Name | Carlos Enrique Gutierrez |
| 1st Author's Affiliation | Graduate School of Engineering and Science. Department of Information Engineering. University of the Ryukyus.() |
| 2nd Author's Name | Mohamad Reza Alsharif |
| 2nd Author's Affiliation | Graduate School of Engineering and Science. Department of Information Engineering. University of the Ryukyus. |
| 3rd Author's Name | Rafael Villa |
| 3rd Author's Affiliation | Regional Public Goods. InterAmerican Development Bank |
| 4th Author's Name | Katsumi Yamashita |
| 4th Author's Affiliation | Graduate School of Engineering. Osaka Prefecture University. |
| 5th Author's Name | Cuiwei He |
| 5th Author's Affiliation | Graduate School of Engineering and Science. Department of Information Engineering. University of the Ryukyus. |
| 6th Author's Name | Hayao Miyagi |
| 6th Author's Affiliation | Graduate School of Engineering and Science. Department of Information Engineering. University of the Ryukyus. |
| 7th Author's Name | Shiro Tamaki |
| 7th Author's Affiliation | Graduate School of Engineering and Science. Department of Information Engineering. University of the Ryukyus. |
| Date | 2013-02-22 |
| Paper # | SAT2012-58 |
| Volume (vol) | vol.112 |
| Number (no) | 440 |
| Page | pp.pp.- |
| #Pages | 5 |
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