Presentation 2018-05-14
Fundamental Research about Machine Classification of Twitter Images into Damage Types
Munenari Inoguchi, Atsushi Imai,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Recently most people utilize smart-phone and post some information into social media such as Twitter and Facebook. Following this situation, much information relating to damage can be published by affected people in social medias. In those information, there could be many photos which represent actual indoor-damage and outdoor-damage. In order to retrieve damage information from photos posted in social media, we tried to utilize “Machine Classification” technology based on actual posted twitter data at 2016 Kumamoto Earthquake. First, we gathered twitter data tweeted in Kumamoto area with photos and geolocation, which amount was 5,853. Then, we retrieve 5,684 photos from those tweets, and we classified them into “indoor damage”, “building damage (outdoor damage)” and “road damage (outdoor damage)” as teacher data. The machine learned those teacher data in deep-learning method, and the machine tried to classify random-sampled photos into “indoor-damage” or “outdoor-damage”. We verified those result, and we found that over 80% photos can be classified adequately by machine classification without specified customization.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Machine Classification / Deep Learning / Damage Situation / Social Media
Paper # ICTSSL2018-1,ASN2018-1
Date of Issue 2018-05-07 (ICTSSL, ASN)

Conference Information
Committee ASN / ICTSSL
Conference Date 2018/5/14(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Hiroshima City Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) Ambient intelligence, safe and secure life, poster session, etc.
Chair Hiraku Okada(Nagoya Univ.) / Kazunori Okada(NICT)
Vice Chair Shigeki Shiokawa(KAIT) / Jin Nakazawa(Keio Univ.) / Satoru Yamano(NEC) / Hiroshi Tamura(Chuo Univ.) / Keisuke Nakano(Niigata Univ.)
Secretary Shigeki Shiokawa(NICT) / Jin Nakazawa(Sophia Univ.) / Satoru Yamano(NTT DoCoMo) / Hiroshi Tamura(Shizuoka Univ.) / Keisuke Nakano
Assistant Hiroto Aida(Doshisha Univ.) / Tomoyuki Ota(Hiroshima City Univ.) / Tatsuya Kikuzuki(Fujitu Lab.) / Ryo Nakano(HITACHI) / Yoshifumi Hotta(Mitsubishi Electric) / Shosuke Sato(Tohoku Univ.) / Tomotaka Wada(Kansai Univ.) / Kazuyuki Miyakita(Niigata Univ.)

Paper Information
Registration To Technical Committee on Ambient intelligence and Sensor Networks / Technical Committee on Information and Communication Technologies for Safe and Secure Life
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Fundamental Research about Machine Classification of Twitter Images into Damage Types
Sub Title (in English) A Case Study of 2016 Kumamoto Earthquake
Keyword(1) Machine Classification
Keyword(2) Deep Learning
Keyword(3) Damage Situation
Keyword(4) Social Media
1st Author's Name Munenari Inoguchi
1st Author's Affiliation University of Toyama(Toyama Univ.)
2nd Author's Name Atsushi Imai
2nd Author's Affiliation NTT DATA CCS CORPORATION(NTT Data CCS)
Date 2018-05-14
Paper # ICTSSL2018-1,ASN2018-1
Volume (vol) vol.118
Number (no) ICTSSL-26,ASN-27
Page pp.pp.1-4(ICTSSL), pp.1-4(ASN),
#Pages 4
Date of Issue 2018-05-07 (ICTSSL, ASN)