Understanding and predicting burst phenomena in social media

• Project/Area Number: 15K00420
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Web informatics, Service informatics
• Research Institution: University of Tsukuba
• Principal Investigator: Oka Mizuki 筑波大学, システム情報系, 准教授 (10512105)
• Co-Investigator(Kenkyū-buntansha): 池上 高志 東京大学, 大学院総合文化研究科, 教授 (10211715) ; 橋本 康弘 東京大学, 大学院新領域創成科学研究科, 特任研究員 (10376494)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: ソーシャルメディア / ソーシャルタギング / Yule-Simon過程 / Yule-Simonモデル

Outline of Final Research Achievements

Social media such as Facebook, Twitter, Instagram etc. are widely used as information sharing tool. These social media are drawing attention as a research platform to understand the emergent dynamics of collective behavior and group attention. In this research, we focused on "tags" and developed a mathematical model on how new tags are created and used and conducted detailed analysis to understand their dynamics.

Research Products

• [Journal Article] Life as an Emergent Phenomenon: Studies from a Large-Scale Boid Simulation and Web Data (2017)
  • Author(s): Takashi Ikegami, Yoichi Mototake, Shintaro Kobori, Mizuki Oka, Yasuhiro Hashimoto
  • Journal Title: Philosophical Transactions A Volume: 375 Issue: 2109 Pages: 20160351-20160351
  • DOI: 10.1098/rsta.2016.0351
  • Peer Reviewed
• [Journal Article] Modeling and Analysis of Tag Co-occurrence Dynamics Using Yule-Simon process (2015)
  • Author(s): 佐藤晃矢, 岡瑞起, 橋本康弘, 加藤和彦
  • Journal Title: Transactions of the Japanese Society for Artificial Intelligence Volume: 30 Issue: 5 Pages: 667-674
  • DOI: 10.1527/tjsai.30_667
  • NAID: 130005095338
  • ISSN: 1346-0714, 1346-8030
  • Peer Reviewed
• [Presentation] Large fluctuation in social tagging ecosystems (2017)
  • Author(s): Yasuhiro Hashimoto, Mizuki Oka, Takashi Ikegami
  • Organizer: International Conference on Computational Social Science
  • Place of Presentation: Cologne, Germany
  • Year and Date: 2017-07-11
  • Int'l Joint Research
• [Presentation] Large fluctuation in social tagging ecosystems (2017)
  • Author(s): Yasuhiro Hashimoto, Mizuki Oka, and Takashi Ikegami
  • Organizer: International Conference on Computational Social Science (IC2S2 2017)
  • Int'l Joint Research
• [Presentation] SNSにおけるユーザ参加期間とタグ生成・利用の関係 (2017)
  • Author(s): 佐藤晃矢, 岡瑞起, 橋本康弘, 池上高志, 加藤和彦
  • Organizer: 2017年度人工知能学会全国大会
• [Presentation] ソーシャルタギングシステムにおける語彙の個性 (2017)
  • Author(s): 橋本康弘, 佐藤晃矢, 岡瑞起, 池上高志
  • Organizer: 2017年度人工知能学会全国大会
• [Presentation] SNS におけるユーザの行動のモチベーション要因の分析 (2017)
  • Author(s): 江島昇太, 岡瑞起, 橋本康弘, 加藤和彦
  • Organizer: 2017年度人工知能学会全国大会
• [Presentation] Dynamic Homeostasis in Packet Switching Networks (2015)
  • Author(s): Mizuki Oka, Hirotake Abe, and Takashi Ikegami
  • Organizer: Proceedings of the 13th European Conference on Artificial Life
  • Place of Presentation: York (UK)
  • Year and Date: 2015-07-20
  • Int'l Joint Research
• [Presentation] Open-ended evolution in a web system (2015)
  • Author(s): Mizuki Oka, Yasuhiro Hashimoto, and Takashi Ikegami
  • Organizer: Proceedings of the 13th European Conference on Artificial Life
  • Place of Presentation: York (UK)
  • Year and Date: 2015-07-20
  • Int'l Joint Research
• [Presentation] Yule-Simon過程によるタグ共起ダイナミクスのモデル化と分析 (2015)
  • Author(s): 佐藤晃矢, 岡瑞起, 橋本康弘, 加藤和彦
  • Organizer: 2015年度人工知能学会全国大会
  • Place of Presentation: 公立はこだて未来大学（北海道函館市）
  • Year and Date: 2015-05-30
• [Presentation] Zipf's Law and Heaps' Law in Social Tagging (2015)
  • Author(s): 橋本康弘, 佐藤晃矢, 岡 瑞起
  • Organizer: 2015年度人工知能学会全国大会
  • Place of Presentation: 公立はこだて未来大学（北海道函館市）
  • Year and Date: 2015-05-30
• [Presentation] MDFの示す生命性について (2015)
  • Author(s): 池上高志, 岡瑞起
  • Organizer: 2015年度人工知能学会全国大会
  • Place of Presentation: 公立はこだて未来大学（北海道函館市）
  • Year and Date: 2015-05-30
• [Presentation] Modeling Temporal Dynamics on Social Media (2015)
  • Author(s): 岡瑞起, 池上高志
  • Organizer: 2015年度人工知能学会全国大会
  • Place of Presentation: 公立はこだて未来大学（北海道函館市）
  • Year and Date: 2015-05-30
• [Presentation] TCP/IP Network 及び Echo State Network を用いた学習機モデル (2015)
  • Author(s): 丸山典宏, 岡瑞起, 阿部洋丈, 池上高志
  • Organizer: 2015年度人工知能学会全国大会
  • Place of Presentation: 公立はこだて未来大学（北海道函館市）
  • Year and Date: 2015-05-30