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2017 Fiscal Year Annual Research Report

Innovation in statistics and related mathematics through computational algebraic statistics

Research Project

Project/Area Number 25220001
Research InstitutionShiga University

Principal Investigator

竹村 彰通  滋賀大学, データサイエンス学部, 教授 (10171670)

Co-Investigator(Kenkyū-buntansha) 高山 信毅  神戸大学, 理学研究科, 教授 (30188099)
日比 孝之  大阪大学, 情報科学研究科, 教授 (80181113)
Project Period (FY) 2013-05-31 – 2018-03-31
Keywords統計的推測 / 計算代数統計
Outline of Annual Research Achievements

計算代数統計について、次のような成果が得られた。まず、分割表で周辺頻度を固定した場合の一般化超幾何分布に関して、基準化定数及び指数型分布族としての期待値パラメータに関する性質の評価とその数値的応用が得られ(Takayama, Kuriki and Takemura, "A-Hypergeometric Distributions and Newton Polytopes" Advances in Applied Mathematics, 99, 109-133, 2018. doi:10.1016/j.aam.2018.05.001) 一般化超幾何分布分布の最尤推定の性能が向上した。また、統計学以外への応用としては、無線通信分野における多入力多出力系(MIMO, Multiple Input Multiple Output)の復号方式の性能評価へのホロノミック勾配法の応用があげられる。無線通信分野の統計的性能評価では、複素多変量正規分布や複素ウィシャート分布が用いられるが、beamforming と呼ばれる通信方式の性能を調べるための統計量の分布関数に関するホロノミック系の性質について Vidunas and Takemura, "Differential relations for the largest root distribution of complex non-central Wishart matrices" (in The 50th Anniversary of Grobner Basis, edited by Takayuki Hibi, Advanced Studies in Pure Mathematics, 77, 411-436. 2018) でいくつかの結果を得た。

Research Progress Status

平成29年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成29年度が最終年度であるため、記入しない。

  • Research Products

    (4 results)

All 2018

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

  • [Journal Article] A new era of statistics and data science education in Japanese universities2018

    • Author(s)
      Akimichi Takemura
    • Journal Title

      Japanese Journal of Statistics and Data Science

      Volume: 1 Pages: 109-116

    • DOI

      10.1007/s42081-018-0005-7

    • Peer Reviewed / Open Access
  • [Journal Article] Differential relations for the largest root distribution of complex non-central Wishart matrices2018

    • Author(s)
      Raimundas Vidunas and Akimichi Takemura
    • Journal Title

      The 50th Anniversary of Grobner Basis, edited by Takayuki Hibi, Advanced Studies in Pure Mathematics

      Volume: 77 Pages: 411-436

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A-hypergeometric distributions and Newton polytopes2018

    • Author(s)
      Nobuki Takayama, Satoshi Kuriki and Akimichi Takemura
    • Journal Title

      Advances in Applied Mathematics

      Volume: 99 Pages: 109-133

    • DOI

      10.1016/j.aam.2018.05.001

    • Peer Reviewed
  • [Presentation] New Undergraduate Departments and Programs of Data Science in JAPAN2018

    • Author(s)
      Akimichi Takemura
    • Organizer
      0th International Conference on Teaching Statistics (ICOTS10)
    • Int'l Joint Research / Invited

URL: 

Published: 2019-12-27  

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