Web Web Web Twitter Web Web 2 Web Web Web Web URL Web Web 2 Web Twitter Developers Streaming API 1 2 Google Place API vervion 3 1 lm 1

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1 DEIM Forum 2016 F Web Web 1. Twitter 1 Forsquare 2 SNS Web [1] SNS [2] Web Web Web Web Web 2 Web 4 5 6

2 Web Web Web Twitter Web Web 2 Web Web Web Web URL Web Web 2 Web Twitter Developers Streaming API 1 2 Google Place API vervion 3 1 lm 1

3 Web l=5 id URL 3. 2 t d n t i m ( ) i 1 1 n 1 + e x m i=1 (1) m t x i DF x = i (2) t 3. 3 Web Web Web URL Web 3. 4 Web 3.3 Web Web 3.1 Streaming API 3.2 Web Web Web DB Web 3. 5 k DF DF n n d(p, q) = (p 1 q 1) 2 + (p 2 q 2) (p n q n) 2 { j where {c j } = max{c 1,..., c k } = reject where {c i,..., c j } = max{c 1,..., c k } k j j 3. 6 TF-IDF i TF = i DF = Twitter Developers Streaming API

4 LUCUA d = 200m d = 800m ( ) ( ) 6-9 ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) LUCUA 10F 9F 1F 8F B1F 3 14 dm LUCUA 200m, 800m ( 1 2), LUCUA ( 3 3) ( ) ( ) ( ) ( ) ( ) 1(LUCUA) 4 1F F 10F 0.4 (12-15 ) (18-21 ) (1) (9) LUCUA ( ) ( ) ( ) ( ) ( ) LUCUA 7 9F 10F (1) (9) (2) LUCUA 4

5 4 spearman (LU- CUA) 7 spearman (LUCUA) 8 spearman (TDL(1) (7)) 5 spearman (TDL(1) (7)) 9 spearman (TDL(8) (14)) 6 spearman (TDL(8) (14)) (1 8 ) 5 LUCUA LUCUA (3) ( ) LUCUA

6 ,, (B1 ), (1 8 ), (9 ) (10 ) 4 ( 15 ) 6 9 ( ) 9 12 ( ) ( ) ( ) ( ) ( ),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 10 ( ) 11 (6-9 ) Web Twitter Twitter Arakawa [5] Yamamoto Twitter [6], [7] [8] Twitter Yamaguchi [9]

7 5 ( 15 ) (1) (2) (3) (4) (5) 6 9 ( ) 9 12 ( ) ( ) ( ) ( ) ( ),,,,,,,,,,,,,,,,,,,,,,,,, (6) (7) (8) (9) (10) (11) (12) (13),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, (14),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Nichols [10] Ribeiro [11] Nakaji [12] Kaneko [13]

8 2 Takemura [14] Twitter Twitter Yahoo! [15] SVM [16] QA QA [17] Web QA Web Web 6. Web Web [ ] SCOPE ICT JSPS (B) ( ) (C) (15K00162) [1] Shingo Tajima, Taketoshi Ushiama: A Method for Composing Ad-hoc Following Networks on Twitter for Sharing Information among Event Participants, International Journal of ADADA, Vol. 17, No. 4, pp , [2] Kenta Oku, Koki Ueno and Fumio Hattori: Mapping Geotagged Tweets to Tourist Spots for Recommender Systems, In Proc. of 2014 IIAI 3rd International Conference on Advanced Applied Informatics (IIAI 2014), pp , [3] Yuanyuan Wang, Gouki Yasui, Yuji Hosokawa, Yukiko Kawai, Toyokazu Akiyama and Kazutoshi Sumiya: TWin- Chat: A Twitter and Web User Interactive Chat System, In Proc. of the 23rd ACM International Conference on Information and Knowledge Management (CIKM 2014), pp , [4] Vol. 28 No. 4 pp [5] Yutaka Arakawa, Shigeaki Tagashira and Akira Fukuda: Relationship Analysis between User s Contexts and Real InputWords through Twitter, IEEE Globecom 2010 Workshop on Ubiquitous Computing and Networks(UbiCoNet 2010), pp , [6] Shuhei Yamamoto and Tetsuji Satoh: Two Phase Extraction Method for Multi-label Classication of Real Life Tweets, In Proc. of the 15th International Conference on Information Integration and Web-based Applications & Services (iiwas 2013), pp , [7] Shuhei Yamamoto and Tetsuji Satoh: Two Phase Extraction Method for Extracting Real Life Tweets using LDA, In Proc. of the 15th Asia-Pacific Web Conference (APWeb 2013), Lecture Notes in Computer Science 7808, pp , [8] Takeshi Sakaki Makoto Okazaki and Yutaka Matsuo: Earthquake Shakes Twitter Users: Real-time Event Detection by Social Sensors, In Proc of the International World Wide Web Conference (WWW 2010) pp [9] Yuto Yamaguchi, Toshiyuki Amagasa, Hiroyuki Kitagawa and Yohei Ikawa: Online User Location Inference Exploiting Spatiotemporal Correlations in Social Streams, In Proc. of he 23rd ACM International Conference on Information and Knowledge Management (CIKM 2014), pp , [10] Jeffrey Nichols, Jalal Mahmud and Clemens Drews: Summarizing Sporting Events Using Twitter. In Proc. of the 2012 ACM International Conference on Intelligent User Interfaces (IUI 2012), pp , [11] S. S. Ribeiro, C. A. Davis, D. R. R. Oliveira, W. Meira, T. S. Goncalves and G. L. Pappa: Traffic Observatory: A System to Detect and Locate Traffic Events and Conditions Using Twitter. In Proc. of the 5th ACM SIGSPATIAL International Workshop on Location-Based Social Networks (LBSN 2012), pp. 5-11, [12] Yusuke Nakaji and Keiji Yanai: Visualization of Real World Events with Geotagged Tweet Photos In Proc of IEEE ICME Workshop on Social Media Computing (SMC 2012) pp , [13] Takamu Kaneko and Keiji Yanai: Visual Event Mining from Geo-tweet Photos, IEEE ICME Workshop on Social Multimedia Research (SMMR 2013), pp. 1-6, [14] Hikaru Takemura and Keishi Tajima: Tweet Classification Based on Their Lifetime Duration, In Proc. of the 21st ACM International Conference on Information and Knowledge Management (CIKM 2012), pp , [15] QA NLP [16] Daisuke Kobayashi and Naohiro Matsumura: Automatic Gender Estimation of Bloggers Gender, In Proc. of International Conference on Weblogs and Social Media (ICWSM 2007), pp , [17] Web 1 (DEIM Forum 2009) C