• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Copula theory for multivariate circular data

Research Project

Project/Area Number 17K05379
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Foundations of mathematics/Applied mathematics
Research InstitutionThe Institute of Statistical Mathematics

Principal Investigator

Kato Shogo  統計数理研究所, 数理・推論研究系, 准教授 (60468535)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords数理統計学 / コピュラ / 方向統計学 / 回帰分析 / 統計数学
Outline of Final Research Achievements

Copula has gained its popularity as a tool for analyzing multivariate data which include angular observations. However existing copulas for such data can express only limited relationships between variables. In this research project, we have proposed new families of copulas on the torus which can be used for the analysis of pairs of two angles. It has been seen that the proposed copulas can express different dependence structures from the existing ones. In addition, in order to analyze pairs of a linear and angular variables, we have presented a new family of probability distribution on the cylinder which is derived from a general class of copulas on the cylinder. It has been shown that both of the proposed models have various tractable properties.

Academic Significance and Societal Importance of the Research Achievements

本研究では、角度の観測を含む2変量データに対する新たな2つのモデルを提案した。1つ目のモデルは2次元トーラス上のコピュラであり、このコピュラが既存のコピュラでは表現できなかった多様な依存関係を表現できることを示した。また、2つ目のモデルは、2次元シリンダー上のコピュラに関連した確率分布である。この分布は、パラメータの解釈がしやすく、解析的に扱いやすい多くの性質を持つことを明らかにした。本研究で提案した2つのモデルは、理論的な扱いにくさ故に考慮されないことが多かった角度の情報を統計解析に有効的に活用することを可能とし、様々な学術分野へと応用される可能性があると考えている。

Report

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

    (39 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (12 results) Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results) Presentation (21 results) (of which Int'l Joint Research: 15 results,  Invited: 13 results) Remarks (3 results)

  • [Int'l Joint Research] The University of Chicago(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] The Open University(英国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Universite Laval(カナダ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] University of Extremadura(スペイン)

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

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] The Open University(英国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] Universite Laval(カナダ)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] University of Extremadura/Universidad Politecnica de Madrid(スペイン)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] The University of Chicago(米国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] The Open University(英国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Universite Laval(カナダ)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] University of Extremadura/Universidad Politecnica de Madrid(スペイン)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Some properties of a Cauchy family on the sphere derived from the Moebius transformations2020

    • Author(s)
      Shogo Kato and Peter McCullagh
    • Journal Title

      Bernoulli (to appear)

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A random effects model for clustered circular data2019

    • Author(s)
      Louis-Paul Rivest and Shogo Kato
    • Journal Title

      Canadian Journal of Statistics

      Volume: 47 Issue: 4 Pages: 712-728

    • DOI

      10.1002/cjs.11520

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A circular-linear dependence measure under Johnson-Wehrly distributions and its application in Bayesian networks2019

    • Author(s)
      Ignacio Leguey, Pedro Larranaga, Concha Bielza and Shogo Kato
    • Journal Title

      Information Sciences

      Volume: 486 Pages: 240-253

    • DOI

      10.1016/j.ins.2019.01.080

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] A measure for comparing the upper and lower tail probabilities of bivariate distributions2019

    • Author(s)
      Shogo Kato
    • Organizer
      The 28th South Taiwan Statistics Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A copula-based measure for comparing the upper and lower tail probabilities of bivariate distributions2019

    • Author(s)
      Shogo Kato
    • Organizer
      SEED Seminar
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Moebius transformation and a Cauchy family on the sphere2019

    • Author(s)
      Shogo Kato and Peter McCullagh
    • Organizer
      The 62nd ISI World Statistics Congress 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Bayesian network model for multivariate data which include circular observations2019

    • Author(s)
      Shogo Kato
    • Organizer
      International Conference on Environmental Statistics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A copula-based measure for comparing the upper and lower tail probabilities of bivariate distributions2019

    • Author(s)
      Shogo Kato, Toshinao Yoshiba and Shinto Eguchi
    • Organizer
      2019年度 統計関連学会連合大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] A Cauchy family derived by the Moebius transformations of the sphere2019

    • Author(s)
      Shogo Kato and Peter McCullagh
    • Organizer
      International Symposium on Theories and Methodologies for Large Complex Data
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 角度データのための混合効果モデル2019

    • Author(s)
      加藤 昇吾
    • Organizer
      統計数理セミナー
    • Related Report
      2019 Annual Research Report
  • [Presentation] A measure for comparing upper and lower tail probabilities of bivariate distributions2019

    • Author(s)
      Shogo Kato, Toshinao Yoshiba and Shinto Eguchi
    • Organizer
      Waseda International Symposium "Introduction of General Causality to Various Data & its Applications"
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] A measure for comparing upper and lower tail probabilities of bivariate distributions2019

    • Author(s)
      Shogo Kato
    • Organizer
      Pioneering Workshop on Extreme Value and Distribution Theories in Honor of Professor Masaaki Sibuya
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] A measure for comparing upper and lower tail probabilities of bivariate distributions2019

    • Author(s)
      Shogo Kato
    • Organizer
      ISI-ISM-ISSAS Joint Conference 2019
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Circulas obtained through a Fourier series based approach2018

    • Author(s)
      Shogo Kato, Arthur Pewsey and M.C. Jones
    • Organizer
      The 11th International Conference of the ERCIM WG on Computational and Methodological Statistics (CMStatistics 2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] A class of circulas obtained through a Fourier series based approach2018

    • Author(s)
      Shogo Kato, Arthur Pewsey and M.C. Jones
    • Organizer
      日本数学会 2018年度 秋季総合分科会
    • Related Report
      2018 Research-status Report
  • [Presentation] 2変量分布の上側と下側の裾確率を比較するための尺度2018

    • Author(s)
      加藤 昇吾
    • Organizer
      統計数理セミナー
    • Related Report
      2018 Research-status Report
  • [Presentation] Mobius transformation and a Cauchy family on the sphere2018

    • Author(s)
      Shogo Kato, Peter McCullagh
    • Organizer
      Waseda International Symposium "Recent Developments in Time Series Analysis: Quantile Regression, High Dimensional Data & Causality"
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 実数値と角度の観測が混在するデータのためのベイジアンネットワークモデル2018

    • Author(s)
      加藤 昇吾
    • Organizer
      統計数理セミナー
    • Related Report
      2017 Research-status Report
  • [Presentation] Mobius transformation and a multivariate Cauchy family on the sphere2017

    • Author(s)
      Shogo Kato
    • Organizer
      ADISTA17 International Directional Statistics Workshop
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] A Bayesian network model for linear-circular data2017

    • Author(s)
      Shogo Kato, Ignacio Leguey, Concha Bielza, Pedro Larranaga
    • Organizer
      The 10th International Conference of the ERCIM WG on Computational and Methodological Statistics (CMStatistics 2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] A Bayesian network model for linear-circular data2017

    • Author(s)
      Shogo Kato
    • Organizer
      ISI-ISM-ISSAS Joint Conference Tokyo 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Statistics of circular data2017

    • Author(s)
      Shogo Kato
    • Organizer
      The 26th South Taiwan Statistics Conference, 2017 Chinese Institute of Probability and Statistics Annual Meeting and Chung-hwa Data Mining Society Annual Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] A Bayesian network model for linear-circular data2017

    • Author(s)
      Ignacio Leguey, Concha Bielza, Pedro Larranaga, Shogo Kato
    • Organizer
      Waseda International Symposium "Recent Developments for Statistical Asymptotic Theory for Time Series & Circular Distributions"
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] A Bayesian network model for linear-circular data2017

    • Author(s)
      Shogo Kato
    • Organizer
      2017年度 統計関連学会連合大会
    • Related Report
      2017 Research-status Report
  • [Remarks] 加藤昇吾 Personal HP

    • URL

      http://www.ism.ac.jp/~skato/

    • Related Report
      2019 Annual Research Report 2018 Research-status Report 2017 Research-status Report
  • [Remarks] researchmap (加藤昇吾、日本語)

    • URL

      http://researchmap.jp/read0138993/?lang=japanese

    • Related Report
      2019 Annual Research Report 2018 Research-status Report 2017 Research-status Report
  • [Remarks] researchmap (加藤昇吾、英語)

    • URL

      http://researchmap.jp/read0138993/?lang=english

    • Related Report
      2019 Annual Research Report 2018 Research-status Report 2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2022-02-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi