Identifying long-term periodic cycles and memories of collective emotion in online social media

• Yukie Sano ,

  Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Methodology, Project administration, Validation, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: sano@sk.tsukuba.ac.jp

  Affiliation Department of Policy and Planning Sciences, University of Tsukuba, Ibaraki, Japan

  http://orcid.org/0000-0001-8670-1024

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• Hideki Takayasu,

  Roles Conceptualization, Formal analysis, Methodology, Validation, Writing – review & editing

  Affiliations Sony Computer Science Laboratories, Inc., Tokyo, Japan, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Japan

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• Shlomo Havlin,

  Roles Formal analysis, Methodology, Validation, Writing – review & editing

  Affiliation Department of Physics, Bar-Ilan University, Ramat-Gan, Israel

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• Misako Takayasu

  Roles Conceptualization, Formal analysis, Funding acquisition, Methodology, Validation, Writing – original draft, Writing – review & editing

  Affiliation Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Japan

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