Profile

Back This center was established based on the collaborative agreement among IIS, National Institute of Information and Communications Technology, and National Institute of Informatics, for advancing basic and applied research in the field of information and communication technology. In particular, the center aims at providing practical solutions for various problems in our society by advanced integration and use of big data. Our research activities cover a wide spectrum of ICT, including human behavior analysis, database engineering, information security, natural language processing, and information visualization.


Member

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Director

Yoichi Sato (Professor, Institute of Industrial Science, the University of Tokyo)

Institute of Industrial Science, the University of Tokyo

Masaru Kitsuregawa (Professor, Institute of Industrial Science, the University of Tokyo)

Kanta Matsuura (Professor, Institute of Industrial Science, the University of Tokyo)

Masashi Toyoda (Associate Professor, Institute of Industrial Science, the University of Tokyo)

Naoki Yoshinaga (Associate Professor, Institute of Industrial Science, the University of Tokyo)

National Institute of Informatics

Jun Adachi (Deputy Director General)

Ken'ichi Kawarabayashi (Professor, Principles of Informatics Research Division)

Shin'ichi Satoh (Professor, Digital Content and Media Sciences Research Division)

Takeaki Uno (Assoiciate Professor, Principles of Informatics Research Division)

Asanobu Kitamoto (Associate Professor, Digital Content and Media Sciences Research Division)

National Institute of Information and Communications Technology

Yutaka Kidawara (Director, Social Big Data Research and Collaboration Center)

Masahiko Itoh (Senior Researcher, Social Big Data Research and Collaboration Center)

Kazutoshi Umemoto (Researcher, Social Big Data Research and Collaboration Center)

Haichuan Shang (Researcher, Social Big Data Research and Collaboration Center)

Rage Uday Kiran (Researcher, Social Big Data Research and Collaboration Center)



Research results

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Publications

  1. Wenliang Gao, Nobuhiro Kaji, Naoki Yoshinaga, and Masaru Kitsuregawa,Collective Sentiment Classification based on User Leniency and Product Popularity, Journal of Natural Language Processing, 21, 3, 541--561 (2014.06)
  2. Shonosuke Ishiwatari, Nobuhiro Kaji, Naoki Yoshinaga, Masashi Toyoda and Masaru Kitsuregawa. Accurate Cross-lingual Projection between Count-based Word Vectors by Exploiting Translatable Context Pairs Proceedings of the 19th Conference on Computational Language Learning (CoNLL 2015). pp. 300-304. Beijing, China, July, 2015.
  3. Masahiko Itoh, Naoki Yoshinaga, and Masashi Toyoda. Spatio-temporal Event Visualization from a Geo-parsed Microblog Stream Proceedings of the 21st ACM International Conference on Intelligent User Interfaces (IUI 2016) (poster). Sonoma, CA, USA. 2016. (to appear)
  4. Wenliang Gao, Nobuhiro Kaji, Naoki Yoshinaga, and Masaru Kitsuregawa,Collective Sentiment Classification based on User Leniency and Product Popularity, Journal of Natural Language Processing, 21, 3, 541--561 (2014.06)
  5. Nobuhiro Kaji and Masaru Kitsuregawa,Accurate Word Segmentation and POS Tagging for Japanese Microblogs: Corpus Annotation and Joint Modeling with Lexical Normalization, EMNLP, 99—109 (2014.10.25)
  6. Shonosuke Ishiwatari, Nobuhiro Kaji, Naoki Yoshinaga, Masashi Toyoda and Masaru Kitsuregawa. Accurate Cross-lingual Projection between Count-based Word Vectors by Exploiting Translatable Context Pairs Proceedings of the 19th Conference on Computational Language Learning (CoNLL 2015). pp. 300-304. Beijing, China, July, 2015.
  7. Masahiko Itoh, Naoki Yoshinaga, and Masashi Toyoda. Spatio-temporal Event Visualization from a Geo-parsed Microblog Stream Proceedings of the 21st ACM International Conference on Intelligent User Interfaces (IUI 2016) (poster). Sonoma, CA, USA. 2016. (to appear)
  8. Haichuan Shang, Xiang Zhao, R. Uday Kiran, Masaru Kitsuregawa: Towards Scale-out Capability on Social Graphs. CIKM 2015: 253-262
  9. R. Uday Kiran and Masaru Kitsuregawa, Discovering Chronic-Frequent Patterns in Transactional Databases, Databases in Networked Information Systems, (2015.03.23)
  10. Haichuan Shang, Xiang Zhao, R. Uday Kiran, Masaru Kitsuregawa: Towards Scale-out Capability on Social Graphs. CIKM 2015: 253-262
  11. Uday Kiran and Masaru Kitsuregawa. TMEDS: Twitter based Minor Event Detecting System. First International Symposium - Big-data Analytics in Science and Engineering ( BASE 2015 ) , 2015.
  12. R. Uday Kiran, Masaru Kitsuregawa, P. Krishna Reddy: Efficient discovery of periodic-frequent patterns in very large databases. Journal of Systems and Software 112: 110-121 (2016)
  13. Masahiko Itoh, Naoki Yoshinaga, and Masashi Toyoda,Word-Clouds in the Sky: Multi-layer Spatio-temporal Event Visualization from a Geo-parsed Microblog Stream, the 20th International Conference on Information Visualization (IV2016), 282-289 (2016.07)
  14. J. N. Venkatesh, R. Uday Kiran, P. Krishna Reddy, Masaru Kitsuregawa,Discovering Periodic-Frequent Patterns in Transactional Databases Using All-Confidence and Periodic-All-Confidence, International Conference on Database and Expert Systems Applications (DEXA), Part I, 55-70 (2016.09.05)
  15. Ruiqi Li,Xiang Zhao,Haichuan Shang,Yifan Chen,Weidong Xiao,Fast top-k similarity join for SimRank, Information Sciences, Vol.381, 1-19 (2017.03)

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