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

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

Research Project

Project/Area Number 19K01582
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 07030:Economic statistics-related
Research InstitutionOtaru University of Commerce

Principal Investigator

LIU QINGFENG  小樽商科大学, 商学部, 教授 (60378958)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsモデル平均 / モデル選択 / 非線形モデル / 超高次元データ / アンサンブル学習 / Machine Collaboration / 機械学習 / Model Averaging / Sparsity / Model Selection / Nonlinear Model / Ultra-high Dimensional / Lasso / Combination / Ultrahigh Dimension / Big Data
Outline of Research at the Start

本研究は超高次元データ解析の精度を高めるためのモデル平均法の開発を目的とする。近年、モデル平均法は推定の精度を高め、リスクを大きく下げることができると同時にスパース推定のミススペシフィケーションの問題点をある程度克服できるため注目されている。現状ではデータが高次元になるにつれ計算量が膨大になり、特に共変量の次元Pがサンプルサイズnを大きく超える超高次元の状況では、実用的なモデル平均法とそれに関する統計理論が十分に確立されていない。本研究はスパース推定を用いて共変量の次元を減らしてからモデル平均法を適用する二段階推定法を構築して、その統計学的性質を解明し実証研究を行う。

Outline of Final Research Achievements

We developed several novel model averaging methods, and provided a solution to the high computational cost issue of model averaging. The achievements include model averaging method of OLS and GLS estimators, model averaging method of nonlinear model, model averaging method for GARCH-type models and model averaging method for Ultra-High Dimensional Data.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果は、モデル平均法の分野では国際的に最先端の課題のチャレンジで、当該分野の発展に大きく貢献していると言える。ビッグデータの時代において、大規模データに適したデータ解析の方法を提供した。学術と社会の発展に技術の面で寄与した。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (20 results)

All 2022 2021 2020 2019 Other

All Journal Article (7 results) (of which Int'l Joint Research: 6 results,  Open Access: 2 results,  Peer Reviewed: 6 results) Presentation (8 results) (of which Int'l Joint Research: 5 results,  Invited: 7 results) Remarks (4 results) Funded Workshop (1 results)

  • [Journal Article] Machine Collaboration2021

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

      arXiic

      Volume: -

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [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 Issue: 2 Pages: 1-14

    • DOI

      10.1080/07350015.2020.1870477

    • Related Report
      2020 Research-status Report
    • 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 Issue: 1 Pages: 1-13

    • DOI

      10.1002/sta4.317

    • Related Report
      2020 Research-status Report
    • 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

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On the sparsity of Mallows model averaging estimator2020

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

      Economics Letters

      Volume: 187 Pages: 108916-108916

    • DOI

      10.1016/j.econlet.2019.108916

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Model averaging estimation for conditional volatility models with an application to stock market volatility forecast2020

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

      Journal of Forecasting

      Volume: Online First Issue: 5 Pages: 1-23

    • DOI

      10.1002/for.2659

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A Combination Method for Averaging OLS and GLS Estimators2019

    • Author(s)
      Liu Qingfeng、Vasnev Andrey L.
    • Journal Title

      Econometrics

      Volume: 7 Issue: 3 Pages: 38-38

    • DOI

      10.3390/econometrics7030038

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Machine Collaboration2022

    • Author(s)
      劉慶豊
    • Organizer
      Applications of Data Science in Social Science
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Machine Collaboration2021

    • Author(s)
      劉慶豊
    • Organizer
      日本経済学会2021秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] On the sparsity of Mallows model averaging estimator2021

    • Author(s)
      劉慶豊
    • Organizer
      4th International Conference on Econometrics and Statistics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Machine Collaboration2021

    • Author(s)
      劉慶豊
    • Organizer
      科研費シンポジウム多様な分野における統計科学に関する理論と方法論の革新的展開
    • Related Report
      2021 Annual Research Report
    • Invited
  • [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)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] A Machine Learning Perspective on Model Averaging2020

    • Author(s)
      Qingfeng Liu
    • Organizer
      ACIEK(Winter)- IMIP 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] On the Sparsity of Mallows Model Averaging Estimator2019

    • Author(s)
      劉慶豊
    • Organizer
      The 2019 International Symposium of Quantitative Economics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Model Averaging for Nonlinear Regression Models2019

    • Author(s)
      劉慶豊
    • Organizer
      The 2019 ICSA China Conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] Qingfeng Liu's Selected Publications

    • URL

      https://qingfeng-liu.github.io/publication.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] The Page of MaC

    • URL

      https://qingfeng-liu.github.io/MaC.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] Current Working Papers

    • URL

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

    • Related Report
      2020 Research-status Report
  • [Remarks] Selected Publications

    • URL

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

    • Related Report
      2019 Research-status Report
  • [Funded Workshop] TRANSDISCIPLINARY ECONOMETRICS & DATA SCIENCE SEMINAR2021

    • Related Report
      2021 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi