Tracking Time Evolution of Collective Attention Clusters in Twitter: Time Evolving Nonnegative Matrix Factorisation

• Shota Saito ,

  * E-mail: ssaito@sat.t.u-tokyo.ac.jp

  Affiliation Department of Mathematical Informatics, Graduate School of Information Science and Technology, The University of Tokyo, Tokyo, Japan

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• Yoshito Hirata,

  Affiliations Department of Mathematical Informatics, Graduate School of Information Science and Technology, The University of Tokyo, Tokyo, Japan, Institute of Industrial Science, The University of Tokyo, Tokyo, Japan

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• Kazutoshi Sasahara,

  Affiliation Department of Complex Systems Science, Graduate School of Information Science, Nagoya University, Nagoya, Japan

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• Hideyuki Suzuki

  Affiliations Department of Mathematical Informatics, Graduate School of Information Science and Technology, The University of Tokyo, Tokyo, Japan, Institute of Industrial Science, The University of Tokyo, Tokyo, Japan

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