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A study on privacy protection of time-series data through negotiation

Research Project

Project/Area Number 16K12437
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Information security
Research InstitutionKyoto University

Principal Investigator

Yoshikawa Masatoshi  京都大学, 情報学研究科, 教授 (30182736)

Co-Investigator(Kenkyū-buntansha) 浅野 泰仁  京都大学, 情報学研究科, 特定准教授 (20361157)
Research Collaborator CAO Yang  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsプライバシ保護 / 経路情報 / パーソナルデータ市場 / 差分プライバシ / データ市場 / 位置情報 / 道路ネットワーク / パーソナルデータ / プライバシ選好 / データの価値
Outline of Final Research Achievements

It is important to collect, analyze, and utilize personal data for pubic welfare as well as protecting privacy. In this research, we have developed a market mechanism for personal data exchange which allows each individual to specify an upper limit of the degree of disclosure of her personal data.
Recently, differential privacy, which can express privacy information leakage risk mathematically, is widely studied. However, since differential privacy was developed for static data, We have extended the notion of differential privacy to be applicable to time series data.

Academic Significance and Societal Importance of the Research Achievements

差分プライバシはプライバシ漏洩の程度を数学的に定量化できるため,2006年に提案されて以来,活発な研究が行われてきた.しかし,時系列データの場合はデータ間に相互依存関係があるため,差分プライバシの考え方を適用することは困難であった.我々の研究では隣接する時刻のデータの依存性に応じて実際のプライバシ漏洩の程度を始めて数量的に表現した.また,パーソナルデータ市場でこれまで考えられていなかった各個人がパーソナルデータ公開に対する許容度を指定できる機構を始めて導入した.これらの成果はパーソナルデータ市場実現のための理論的支柱を与える意義を持つ.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (13 results)

All 2019 2018 2017 Other

All Int'l Joint Research (3 results) Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 5 results)

  • [Int'l Joint Research] Emory University(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Emory University(米国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Emory University(U.S.A.)

    • Related Report
      2016 Research-status Report
  • [Journal Article] ConTPL: Controlling Temporal Privacy Leakage in Differentially Private Continuous Data Release2018

    • Author(s)
      Cao Yang、Xiong Li、Yoshikawa Masatoshi、Xiao Yonghui、Zhang Si
    • Journal Title

      Proceedings of the VLDB Endowment

      Volume: 11 Issue: 12 Pages: 2090-2093

    • DOI

      10.14778/3229863.3236267

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Quantifying Differential Privacy in Continuous Data Release under Temporal Correlations2018

    • Author(s)
      Yang Cao, Masatoshi Yoshikawa, Yonghui Xiao, Li Xiong
    • Journal Title

      IEEE Transactions on Knowledge and Data Engineering (TKDE)

      Volume: 印刷中

    • NAID

      120006636647

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Geo識別不能性を用いた経路端点の曖昧化2018

    • Author(s)
      浅田真帆,曹洋,吉川正俊
    • Journal Title

      日本データベース学会和文論文誌

      Volume: 16-J Pages: 19-19

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Geo-Graph-Indistinguishability: Protecting Location Privacy for LBS over Road Networks2019

    • Author(s)
      Shun Takagi, Yang Cao, Yasuhito Asano and Masatoshi Yoshikawa
    • Organizer
      33rd Annual IFIP WG 11.3 Conference on Data and Applications Security and Privacy (DBSec'19)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] "When and where do you want to hide?" -- Recommendation of location privacy preferences with local differential privacy2019

    • Author(s)
      Maho Asada, Masatoshi Yoshikawa and Yang Cao
    • Organizer
      33rd Annual IFIP WG 11.3 Conference on Data and Applications Security and Privacy (DBSec'19)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 道路ネットワークにおける位置情報プライバシー2019

    • Author(s)
      高木 駿, 曹 洋, 浅野 泰仁, 吉川 正俊
    • Organizer
      第11回データ工学と情報マネジメントに関するフォーラム
    • Related Report
      2018 Annual Research Report
  • [Presentation] Quantifying Differential Privacy under Temporal Correlations2017

    • Author(s)
      Yang Cao, Masatoshi Yoshikawa, Yonghui Xiao and Li Xiong
    • Organizer
      IEEE International Conference on Data Engineering (ICDE)
    • Place of Presentation
      San Diego, U.S.A.
    • Year and Date
      2017-04-21
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Geo識別不能性を用いた経路端点の曖昧化2017

    • Author(s)
      浅田真帆, 曹洋, 吉川正俊
    • Organizer
      第9回データ工学と情報マネジメントに関するフォーラム(DEIM)
    • Place of Presentation
      岐阜県高山市 高山グリーンホテル
    • Year and Date
      2017-03-06
    • Related Report
      2016 Research-status Report
  • [Presentation] Quantifying Differential Privacy under Temporal Correlations2017

    • Author(s)
      Yang Cao, Masatoshi Yoshikawa, Yonghui Xiao, Li Xiong
    • Organizer
      The 33rd IEEE International Conference on Data Engineering (ICDE2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] How to Balance Privacy and Money through Pricing Mechanism in Personal Data Market2017

    • Author(s)
      Rachana Nget, Yang Cao, Masatoshi Yoshikawa
    • Organizer
      The 2017 SIGIR Workshop on eCommerce
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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