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Development of collective memory model with recall effect

Research Project

Project/Area Number 17K12783
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Web informatics, Service informatics
Research InstitutionUniversity of Tsukuba

Principal Investigator

Sano Yukie  筑波大学, システム情報系, 助教 (60580206)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywordsソーシャルメディア / 計算社会科学 / ネットワーク科学 / データ分析 / 集合的記憶 / ウェブサイエンス / 忘却曲線 / 想起現象 / ブログ / 実データ解析 / 集合的感情 / ネットワーク分析 / 忘却 / ウェブマイニング / エージェントベースモデル / 社会経済物理
Outline of Final Research Achievements

There are many events in our society that should not be forgotten, such as the memory of war and the memory of the earthquakes. Such memory is called "collective memory" in sociology. In this study, we provide an empirical elucidation of collective memory large-scale data.
In the collective memory, there are a forgetting effect and a recalling effect, but the mechanism of how recalling occurs unclear. In this study, we use data on actor co-starring relationships and find that social networks are strongly linked to recalling. On the other hand, both Japanese and U.S. data reveal that forgetting itself shows the same universality as in the previous studies, and that attention falls as power-law function.

Academic Significance and Societal Importance of the Research Achievements

本研究の学術的意義として、社会における「忘却」と「想起」の普遍性やメカニズムについて、大規模なデータに基づき、統計検定などを用いながら、定量的に示すことができた点が挙げられる。
社会的意義として、社会において忘れてはならない出来事があった場合、どの時点でどのくらい記憶しているか把握するといった応用も考えられる。例えば、東日本大震災から10年後にはどの程度、社会が震災を記憶しているのか、どのタイミングで想起する(思い出させる)ような企画を行うべきか、といった意思決定にも役立つことが考えられる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (16 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (3 results) Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 5 results,  Invited: 3 results)

  • [Int'l Joint Research] Bar-Ilan University(イスラエル)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Binghamton University(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Shlomo Havlin/Bar-Ilan Unuversity(イスラエル)

    • Related Report
      2018 Research-status Report
  • [Journal Article] オンラインメディアにおけるトレンド持続期間の解析2020

    • Author(s)
      渡辺岳人
    • Journal Title

      修士学位論文(筑波大学システム情報工学研究科)

      Volume: - Pages: 1-44

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Identifying long-term periodic cycles and memories of collective emotion in online social media2019

    • Author(s)
      Sano Yukie; Takayasu Hideki; Havlin Shlomo; Takayasu Misako
    • Journal Title

      PLoS ONE

      Volume: 14 Issue: 3 Pages: e0213843-e0213843

    • DOI

      10.1371/journal.pone.0213843

    • NAID

      120007133499

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Correlations and fluctuations in the word sets of collective emotions2018

    • Author(s)
      Yukie Sano
    • Journal Title

      Nonlinear Theory and Its Applications, IEICE (NOLTA)

      Volume: 印刷中

    • NAID

      130007387338

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Information spreading on social media: Network analysis and simulation2020

    • Author(s)
      Yukie Sano
    • Organizer
      MIT-Tsukuba Joint-Workshop on Data Systems Science towards Social and Business Innovations
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Collective attention decay with exogenous event2020

    • Author(s)
      Gakuto Watanabe, Yukie Sano, Hiroki Sayama
    • Organizer
      International School and Conference on Network Science (NetSci-X 2020)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Periodic cycles and memories of collective emotion on the Web2019

    • Author(s)
      Yukie Sano
    • Organizer
      Roles of Heterogeneity in Non-equilibrium collective dynamics (RHINO 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ソーシャルメディアから抽出した感情の周期性と長期記憶2019

    • Author(s)
      佐野 幸恵, 高安 秀樹, Shlomo Havlin, 高安 美佐子
    • Organizer
      日本物理学会 2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Longitudinal analysis of collective emotion in online social media2019

    • Author(s)
      Yukie Sano, Hideki Takayasu, Sholomo Havlin, Misako Takayasu
    • Organizer
      The Conference on Complex Systems 2019 (CCS 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Collective memory and attention in online media triggered by exogenous events2019

    • Author(s)
      Gakuto Watanabe
    • Organizer
      CoCo (Center for Collective Dynamics of Complex Systems) Seminar Series Fall 2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] ウェブにおける集合的感情の周期と記憶2018

    • Author(s)
      佐野 幸恵; 高安 秀樹; Shlomo Havlin; 高安 美佐子
    • Organizer
      人工知能学会 合同研究会 第4回ウェブサイエンス研究会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] ソーシャルメディアにおける想起現象2018

    • Author(s)
      渡辺岳人; 佐野 幸恵
    • Organizer
      人工知能学会 合同研究会 第4回ウェブサイエンス研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] ソーシャルメディアにおける大衆感情の周期性2017

    • Author(s)
      佐野幸恵
    • Organizer
      日本物理学会 2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Quantifying and modeling collective human behaviors in online social media2017

    • Author(s)
      Yukie Sano
    • Organizer
      The 2nd Workshop on Self-Organization and Robustness of Evolving Many-Body Systems
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2021-02-19  

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