Privacy Preservation on Social Media

• Project/Area Number: 25540097
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Intelligent informatics
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Okumura Manabu 東京工業大学, 精密工学研究所, 教授 (60214079)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: ソーシャルメディア / 個人情報秘匿 / 著者同定 / 「なりすまし」検出

Outline of Final Research Achievements

We first presented a method for identifying which blogger is the same person as a user on Twitter, using the set of documents s/he has written. Then, based on the method that we developed, we presented a method for preventing from being identified, by indicating which clues in the documents should be hided. Furthermore, to develop a method for identifying writers' personality from their documents, we first constructed a dataset that consists of a pair of users with their personality information and a set of their tweets and blogs. We then investigated whether it is possible to identify users' personality
from a collection of their documents, and presented a method for constructing a classifier of users' personality from a collection of their documents.

Research Products

• [Journal Article] A Construction of Knowledge Base for Personality Estimation based on Submitted Text Data in Twitter or Blogs (2015)
  • Author(s): Noriyuki Okumura, Manabu Okumura
  • Journal Title: KEOD 2015 Volume: - Pages: 418-423
  • Peer Reviewed / Open Access
• [Presentation] 職業ごとの行動に関する知識の収集 (2015)
  • Author(s): 馬緤 美穂，笹野 遼平，高村 大也，奥村 学
  • Organizer: 情報処理学会 第222回自然言語処理研究発表会
  • Place of Presentation: 首都大学東京秋葉原サテライトキャンパス
  • Year and Date: 2015-07-15
• [Presentation] オンラインでの振る舞いから想定される人物像の特徴 (2015)
  • Author(s): 奥村紀之，奥村 学
  • Organizer: 電子情報通信学会「言語理解とコミュニケーション」研究会
  • Place of Presentation: 徳島大学
  • Year and Date: 2015-06-05
• [Presentation] 感情判断とBig Fiveを用いたブログ著者の性格推定に関する調査 (2015)
  • Author(s): 奥村紀之，金丸裕亮，奥村学
  • 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
  • Year and Date: 2015-06-02
• [Presentation] 複数のソーシャルメディアアカウントの関連付け防止システムの構築 (2014)
  • Author(s): 木原 裕二, 笹野 遼平, 高村 大也, 奥村 学
  • Organizer: 情報処理学会第216回自然言語処理研究会
  • Place of Presentation: 東京工業大学
  • Year and Date: 2014-05-23