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Robust nonparametric inference for infinite variance processes by self-weighted empirical likelihood method

Research Project

Project/Area Number 16K16022
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Statistical science
Research InstitutionThe University of Tokyo (2019)
Waseda University (2016-2018)

Principal Investigator

Akashi Fumiya  東京大学, 大学院経済学研究科(経済学部), 講師 (90773268)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords無限分散過程 / 一般化経験尤度法 / 自己加重法 / 自己基準化法 / 分位点回帰 / 時系列解析 / 統計的仮説検定 / 一般化経験尤度 / 無限分散時系列モデル / 長期記憶時系列モデル / 数理統計学
Outline of Final Research Achievements

This research project constructed robust statistical methods for infinite variance time series models and applied the methods to real data. In particular, the innovation process of the model can be infinite variance random variables, and we constructed natural likelihood-based inference procedures by using empirical likelihood approach. Moreover, the robust generalized empirical likelihood statistic is proposed by self-normalization and self-weighting methods. We also applied the fundamental methods to important practical problems including change point detection of the process, inference for time series regression models with long-memory disturbance, robust causality test of infinite variance models and model diagnostics. As a result, robust and novel statistical inference procedures for various nonregular processes are constructed.

Academic Significance and Societal Importance of the Research Achievements

近年、計量経済学・金融データ解析の分野では正規分布よりも裾の分布の厚い時系列データが観測され、古典的な尤度法やモーメント法を直接用いることができない。そこで本研究課題では有限・無限分散モデルを含む一般的なモデルに対して、モデル誤差項の分布を限定せずに解析を行い、統計量頑健化の手法により興味のない局外変数の事前推定が不要な統計手法を構成した。本研究課題で構成した手法では煩雑なチューニングパラメータの調整の必要はなく、局外母数の事前推定も不要である。結果として研究成果の概要の項目で述べた幅広い応用問題の枠組みでも頑健な統計手法を構成できることが示された。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (50 results)

All 2020 2019 2018 2017 2016 Other

All Journal Article (5 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 5 results,  Acknowledgement Compliant: 1 results) Presentation (41 results) (of which Int'l Joint Research: 25 results,  Invited: 23 results) Book (1 results) Remarks (3 results)

  • [Journal Article] Robust causality test of infinite variance processes2020

    • Author(s)
      Fumiya Akashi, Masanobu Taniguchi, Anna Clara Monti
    • Journal Title

      Journal of Econometrics

      Volume: 216 Issue: 1 Pages: 235-245

    • DOI

      10.1016/j.jeconom.2020.01.016

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Change-Point Detection in Autoregressive Models with no Moment Assumptions2018

    • Author(s)
      Fumiya Akashi, Holger Dette and Yan Liu
    • Journal Title

      Journal of Time Series Analysis

      Volume: 39 Issue: 5 Pages: 763-786

    • DOI

      10.1111/jtsa.12405

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A new look at portmanteau tests2018

    • Author(s)
      Fumiya Akashi, Hiroaki Odashima, Masanobu Taniguchi, Anna Clara Monti
    • Journal Title

      Sankhya A

      Volume: 80 Pages: 121-137

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Robust regression on stationary time series: A self-normalized resampling approach2018

    • Author(s)
      Fumiya Akashi, Shuyang Bai, Murad S. Taqqu
    • Journal Title

      Journal of Time Series Analysis

      Volume: 39 Issue: 3 Pages: 417-432

    • DOI

      10.1111/jtsa.12295

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Self-weighted generalized empirical likelihood methods for hypothesis testing in infinite variance ARMA models2017

    • Author(s)
      Fumiya Akashi
    • Journal Title

      Statistical Inference for Stochastic Processes

      Volume: - Issue: 3 Pages: 1-23

    • DOI

      10.1007/s11203-017-9159-3

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Robust regression on hyper-spheres with unspecified heteroscedastic errors and smooth approximation of object functions2020

    • Author(s)
      Fumiya Akashi, Holger Dette
    • Organizer
      Mini Waseda International Symposium
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Nonparametric L1 regression for spherical data with heavy-tailed dependent errors2019

    • Author(s)
      Fumiya Akashi
    • Organizer
      Statistics Seminar at Lancaster University
    • Related Report
      2019 Annual Research Report
  • [Presentation] Robust causality test of infinite variance processes2019

    • Author(s)
      Fumiya Akashi, Masanobu Taniguchi, Anna Clara Monti
    • Organizer
      3rd International Conference on Econometrics and Statistics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Self-weighted GEL method for heavy-tailed ARMA models and its applications to various problems2019

    • Author(s)
      Fumiya Akashi
    • Organizer
      12th international conference on Computational and Methodological Statistics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Robust local linear inference for spherical-linear regression models2019

    • Author(s)
      Fumiya Akashi, Holger Dette
    • Organizer
      Mini Workshop on TDA, Time Series & Statistics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Hybrid GEL test for rotational symmetry on spheres2019

    • Author(s)
      Fumiya Akashi
    • Organizer
      Workshop on causal inference in complex marine ecosystems
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Robust causality test of infinite variance processes2019

    • Author(s)
      Fumiya Akashi, Masanobu Taniguchi, Anna Clara Monti
    • Organizer
      Statistical Methods and Models for Complex Data
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Robust local linear inference for heavy-tailed non-regular processes2019

    • Author(s)
      Fumiya Akashi
    • Organizer
      Summer Workshop on Economic Theory
    • Related Report
      2019 Annual Research Report
  • [Presentation] 従属構造を持つシリンダー上のデータに対する非母数的・頑健な局所多項式回帰2019

    • Author(s)
      明石郁哉
    • Organizer
      日本数学会2019年度年会 (東京工業大学)
    • Related Report
      2018 Research-status Report
  • [Presentation] Hybrid GEL test for rotational symmetry on spheres2019

    • Author(s)
      Fumiya Akashi
    • Organizer
      Kinosaki Seminar “Data Science & Causality”
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Robust causality test of infinite variance processes2019

    • Author(s)
      Fumiya Akashi, Masanobu Taniguchi and Anna Clara Monti
    • Organizer
      Waseda International Symposium “Introduction of General Causality to Various Data & its Applications”, Waseda University
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Robust statistical inference for nonstandard time series models and related topics2018

    • Author(s)
      明石郁哉
    • Organizer
      Quantitative Finance Seminar, Tokyo Metropolitan University
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] GEL method for tests of rotational symmetry on spheres2018

    • Author(s)
      Fumiya Akashi
    • Organizer
      Various studies of statistical analysis for asymptotic theory, circular or time series, Nanzan University
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Robust local polynomial regression for circular regression models with heavy-tailed error2018

    • Author(s)
      Fumiya Akashi
    • Organizer
      Waseda International Symposium “Introduction of General Causality to Various Data & its Innovation of the Optimal Inference”. Waseda University
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 一般化経験尤度法による球面上分布の回転対称性の検定2018

    • Author(s)
      明石郁哉
    • Organizer
      日本数学会2018年度秋季総合分科会(岡山大学)
    • Related Report
      2018 Research-status Report
  • [Presentation] Robust change point detection by self-weighted GEL method2018

    • Author(s)
      明石郁哉
    • Organizer
      2018年統計関連学会連合大会 (中央大学)
    • Related Report
      2018 Research-status Report
  • [Presentation] Robust statistical inference for multiple time series: Self-weighting and normalization methods2018

    • Author(s)
      明石郁哉
    • Organizer
      Mathematical Statistics and stochastic analysis for modeling and analysis of complex random systems, Osaka University
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Robust statistical inference for multiple time series: Self-weighting and normalization methods2018

    • Author(s)
      Fumiya Akashi
    • Organizer
      SWET: Summer Workshop on Economic Theory, Otaru University of Commerce
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Robust statistical inference for time series regression model by self-normalized subsampling method2018

    • Author(s)
      Fumiya Akashi, Shuyang Bai and Murad S. Taqqu
    • Organizer
      “2nd International Conference on Econometrics and Statistics (Organized Session by Kaiji Motegi)”, City University of Hong Kong, Hong Kong
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 高次元時系列における Whittle 推定量の漸近理論とその数値例2018

    • Author(s)
      谷田義行、明石郁哉、谷口正信
    • Organizer
      日本数学会 2018 年度年会 (東京大学)
    • Related Report
      2017 Research-status Report
  • [Presentation] 自己加重型GEL統計量の局所検出力及び加重関数選択手法2018

    • Author(s)
      明石郁哉
    • Organizer
      日本数学会 2018 年度年会 (東京大学)
    • Related Report
      2017 Research-status Report
  • [Presentation] Asymptotic theory and numerical studies of Whittle estimation for high-dimensional time series2018

    • Author(s)
      Yoshiyuki Tanida, Fumiya Akashi, Masanobu Taniguchi
    • Organizer
      Kouchi International Seminar on “Recent Developments of Quantile Method, Causality and High Dim. Statistics”
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Local asymptotic power of self-weighted GEL method and choice of weighting function2018

    • Author(s)
      Fumiya Akashi
    • Organizer
      Kouchi International Seminar on “Recent Developments of Quantile Method, Causality and High Dim. Statistics”
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Robust GEL test in infinite variance processes and its application to change point tests2018

    • Author(s)
      Fumiya Akashi, Holger Dette, Yan Liu
    • Organizer
      Kagawa International Symposium “Recent Developments in Statistics and Econometrics”
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Self-normalized subsampling method for time series regression models with heavy-tailed long-memory noise2018

    • Author(s)
      Fumiya Akashi
    • Organizer
      Waseda International Symposium on “Recent Developments in Time series Analysis: Quantile Regression, High Dimensional Data & Causality”
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Robust statistical inference for non-standard time series models by empirical likelihood, self-weighting and self-normalization2018

    • Author(s)
      Fumiya Akashi
    • Organizer
      Departmental Colloquia at Texas A&M University
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Self-normalized and random weighting approach to likelihood ratio test for the model diagnostics of stable processes2017

    • Author(s)
      Fumyia Akashi and Jianqing Fan
    • Organizer
      日本数学会
    • Place of Presentation
      首都大学東京
    • Year and Date
      2017-03-24
    • Related Report
      2016 Research-status Report
  • [Presentation] Quantile regression-based self-normalized block sampling method for linear regression model with dependent errors2017

    • Author(s)
      Fumiya Akashi, Shuyang Bai and Murad S. Taqqu
    • Organizer
      日本数学会
    • Place of Presentation
      首都大学東京
    • Year and Date
      2017-03-24
    • Related Report
      2016 Research-status Report
  • [Presentation] Empirical likelihood approach for robust change point detection of infinite variance time series model2017

    • Author(s)
      Fumiya Akashi, Holger Dette and Yan Liu
    • Organizer
      Keio International Symposium
    • Place of Presentation
      慶応大学
    • Year and Date
      2017-03-02
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] A self-normalized block sampling method to quantile regression on time series2017

    • Author(s)
      Fumiya Akashi, Shuyang Bai and Murad S. Taqqu
    • Organizer
      Waseda International Symposium
    • Place of Presentation
      早稲田大学
    • Year and Date
      2017-02-27
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 無限分散・長期記憶過程に対する頑健な推測手法の構成2017

    • Author(s)
      明石郁哉
    • Organizer
      広島大学金曜統計セミナー
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Robust confidence region for time series regression models under the presence of infinite variance and long-memory2017

    • Author(s)
      Fumiya Akashi, Shuyang Bai, Murad S. Taqqu
    • Organizer
      Kyoto (Fushimi-Uji) International Seminar on “Recent Developments for Statistical Science”
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Self-weighted GEL method for linear hypothesis in infinite variance processes and its application to change point tests2017

    • Author(s)
      Fumiya Akashi, Holger Dette, Yan Liu
    • Organizer
      Waseda International Symposium on “Recent Developments for Statistical Asymptotic Theory for Time Series & Circular Distributions”
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 経験尤度法・基準化法に基づく非正則時系列モデルの頑健な統計 的推測法の構成2017

    • Author(s)
      明石郁哉
    • Organizer
      特別講演(VIII:統計分科会)日本数学会2017年度秋季総合分科会 (山形大学)
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Robust GEL method for linear hypothesis of infinite variance processes2017

    • Author(s)
      Fumiya Akashi
    • Organizer
      1st International Conference on Econometrics and Statistics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Change point detection by self-weighted empirical likelihood method and its application to real data2017

    • Author(s)
      Fumiya Akashi, Holger Dette, Yan Liu
    • Organizer
      A Symposium on Complex Data Analysis
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Self-normalized and random weighting approach to likelihood ratio test for the model diagnostics of stable processes2016

    • Author(s)
      Fumyia Akashi and Jianqing Fan
    • Organizer
      Hokkaido International Symposium
    • Place of Presentation
      北海道大学
    • Year and Date
      2016-10-27
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Quantile regression based self-normalized block sampling method for linear regression model with dependent errors2016

    • Author(s)
      Fumiya Akashi, Shuyang Bai and Murad S. Taqqu
    • Organizer
      Waseda International Symposium
    • Place of Presentation
      早稲田大学
    • Year and Date
      2016-10-24
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] LAD-based empirical likelihood method for linear hypothesis and its local asymptotic power2016

    • Author(s)
      Fumiya Akashi
    • Organizer
      日本数学会
    • Place of Presentation
      関西大学
    • Year and Date
      2016-09-15
    • Related Report
      2016 Research-status Report
  • [Presentation] 自己加重型経験尤度による無限分散時系列モデルに対する頑健な統計手法の構成2016

    • Author(s)
      明石郁哉
    • Organizer
      統計関連学会連合大会
    • Place of Presentation
      金沢大学
    • Year and Date
      2016-09-04
    • Related Report
      2016 Research-status Report
  • [Presentation] Empirical likelihood and self-weighting approach for hypothesis testing of infinite variance processes and its applications2016

    • Author(s)
      Fumiya Akashi
    • Organizer
      Boston University/Keio University Workshop 2016
    • Place of Presentation
      ボストン大学
    • Year and Date
      2016-08-15
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Book] Empirical Likelihood and Quantile Methods for Time Series -Efficiency, Robustness, Optimality, and Prediction-2018

    • Author(s)
      Yan Liu, Fumiya Akashi and Masanobu Taniguchi
    • Total Pages
      130
    • Publisher
      Springer
    • ISBN
      9789811001529
    • Related Report
      2018 Research-status Report
  • [Remarks] 東京大学大学院経済学研究科 個人ページ(明石郁哉)

    • URL

      http://www.e.u-tokyo.ac.jp/fservice/faculty/akashi/akashi.j/akashi01.j.html

    • Related Report
      2018 Research-status Report
  • [Remarks] 本人の研究成果のWebページ

    • URL

      http://www.aoni.waseda.jp/f.akashi/index.html

    • Related Report
      2017 Research-status Report
  • [Remarks] 本人のwebページ

    • URL

      http://www.taniguchi.sci.waseda.ac.jp/akashihp/index.html

    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2021-02-19  

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