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2020 Fiscal Year Research-status Report

Model Averaging for Ultra-High Dimensional Data: Theory, Methods, and Applications

Research Project

Project/Area Number 19K01582
Research InstitutionOtaru University of Commerce

Principal Investigator

劉 慶豊  小樽商科大学, 商学部, 教授 (60378958)

Project Period (FY) 2019-04-01 – 2022-03-31
KeywordsModel Averaging / Sparsity / Model Selection / Nonlinear Model / Ultra-high Dimensional
Outline of Annual Research Achievements

超高次元データに適用できるモデル平均の手法としてLASSOなどの手法のsolution pathを利用した方法を開発して、その成果を以下の論文[1]にまとめて学術誌に掲載した。さらに、非線形モデルに適用できるモデル平均法を構築して、その理論的な性質を解明した上で実証研究に適用した。その成果を以下の論文[2]にまとめて経済学分野でトップレベルの学術誌に掲載した。国際学会で研究成果の宣伝として以下のkeynote speechを行なった[3]。
[1]Feng, Y, Liu, Q. Nested model averaging on solution path for high‐dimensional linear regression. Stat. 2020; 9:e317. https://doi.org/10.1002/sta4.317
[2]Feng, Y., Liu, Q., Yao, Q., & Zhao, G. (2021). Model Averaging for Nonlinear Regression Models. Journal of Business & Economic Statistics, 1-30.
[3]Liu, Q., Q. Yao, and G. Zhao “Model averaging estimation for conditional volatility models with an application to stock market volatility forecast”, The Ninth International Symposium of Quantitative Economics, August 26, 2020, (Online, Changchun, China)

Current Status of Research Progress
Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

既に論文5本の掲載を達成している。

Strategy for Future Research Activity

今までの研究成果と得られた知見を拡張してモデル平均と関連する機械学習の手法を参考に新たな推定方法を開発する。

Causes of Carryover

プログラムの作成などのための研究補助と研究成果の宣伝のための旅費が必要になるため。

  • Research Products

    (6 results)

All 2021 2020 Other

All Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results) Presentation (2 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results) Remarks (1 results)

  • [Journal Article] Model Averaging for Nonlinear Regression Models2021

    • Author(s)
      Feng Yang、Liu Qingfeng、Yao Qingsong、Zhao Guoqing
    • Journal Title

      Journal of Business & Economic Statistics

      Volume: Online Pages: 1~14

    • DOI

      10.1080/07350015.2020.1870477

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Nested model averaging on solution path for high‐dimensional linear regression2020

    • Author(s)
      Feng Yang、Liu Qingfeng
    • Journal Title

      Stat

      Volume: 9 Pages: 1~13

    • DOI

      10.1002/sta4.317

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Model Averaging for Generalized Linear Model with Covariates that are Missing completely at Random2020

    • Author(s)
      Qingfeng Liu, Miaomiao Zheng
    • Journal Title

      数理経済研究

      Volume: 11 Pages: 25~40

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Model averaging estimation for conditional volatility models with an application to stock market volatility forecast2020

    • Author(s)
      Qingfeng Liu
    • Organizer
      The Ninth International Symposium of Quantitative Economics, August 26, 2020, (Online, Changchun, China)
    • Int'l Joint Research / Invited
  • [Presentation] A Machine Learning Perspective on Model Averaging2020

    • Author(s)
      Qingfeng Liu
    • Organizer
      ACIEK(Winter)- IMIP 2020
    • Int'l Joint Research / Invited
  • [Remarks] Current Working Papers

    • URL

      https://www.otaru-uc.ac.jp/~qliu/wp.html

URL: 

Published: 2021-12-27  

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