Gaku Igarashi

(五十嵐岳)

Profile Information

Affiliation: Professor, Faculty of Economics Department of Economics, Gakushuin University

Degree: 博士（経済学）(Mar, 2015, 北海道大学)

J-GLOBAL ID: 201801015816778773
researchmap Member ID: B000310225

Research Interests

nonparametric estimation

Research Areas

Papers

A nonparametric discontinuity test of density using a beta kernel

Gaku Igarashi

Journal of Nonparametric Statistics, 35(2) 323-354, 2023 Peer-reviewed
Higher-order bias corrections for kernel type density estimators on the unit or semi-infinite interval

Igarashi, G., Kakizawa, Y.

Journal of Nonparametric Statistics, 32(3) 617-647, May, 2020 Peer-reviewed
Nonparametric direct density ratio estimation using beta kernel

Igarashi, G.

Statistics, 54(2) 257-280, Mar, 2020 Peer-reviewed
Multiplicative bias correction for asymmetric kernel density estimators revisited

Igarashi, G., Kakizawa, Y.

Computational Statistics and Data Analysis, 141 40-61, Jan, 2020 Peer-reviewed
Limiting bias-reduced Amoroso kernel density estimators for non-negative data

Igarashi, G., Kakizawa, Y.

Communications in Statistics - Theory and Methods, 47(20) 4905-4937, Oct, 2018 Peer-reviewed
Generalised gamma kernel density estimation for nonnegative data and its bias reduction^*

Igarashi, G., Kakizawa, Y.

Journal of Nonparametric Statistics, 30(3) 598-639, Jul, 2018 Peer-reviewed
Multivariate Density Estimation Using a Multivariate Weighted Log-Normal Kernel

Gaku Igarashi

Sankhya A, 80(2) 1-20, Feb 2, 2018 Peer-reviewed
Inverse gamma kernel density estimation for nonnegative data

Yoshihide Kakizawa, Gaku IgaraShi

JOURNAL OF THE KOREAN STATISTICAL SOCIETY, 46(2) 194-207, Jun, 2017 Peer-reviewed
Bias reductions for beta kernel estimation

Gaku Igarashi

JOURNAL OF NONPARAMETRIC STATISTICS, 28(1) 1-30, Jan, 2016 Peer-reviewed
Weighted log-normal kernel density estimation

Gaku Igarashi

COMMUNICATIONS IN STATISTICS-THEORY AND METHODS, 45(22) 6670-6687, 2016 Peer-reviewed
Bias corrections for some asymmetric kernel estimators

Gaku Igarashi, Yoshihide Kakizawa

JOURNAL OF STATISTICAL PLANNING AND INFERENCE, 159 37-63, Apr, 2015 Peer-reviewed
On improving convergence rate of Bernstein polynomial density estimator

Gaku Igarashi, Yoshihide Kakizawa

JOURNAL OF NONPARAMETRIC STATISTICS, 26(1) 61-84, Jan, 2014 Peer-reviewed
Re-formulation of inverse Gaussian, reciprocal inverse Gaussian, and Birnbaum-Saunders kernel estimators

Gaku Igarashi, Yoshihide Kakizawa

STATISTICS & PROBABILITY LETTERS, 84 235-246, Jan, 2014 Peer-reviewed

Presentations

局所多項式による確率密度比の直接型推定について

五十嵐,岳

研究集会「第24回ノンパラメトリック統計解析とベイズ統計」, Mar 25, 2024
局所多項式による確率密度比の直接型推定について

五十嵐,岳

2023年度統計関連学会連合大会, Sep 5, 2023
ベータカーネルを用いたノンパラメトリックな確率密度の不連続性検定

五十嵐,岳

研究集会「第21回ノンパラメトリック統計解析とベイズ統計」, Mar 25, 2021
ノンパラメトリックベータカーネル密度比推定による確率密度の不連続性検定

五十嵐,岳

2020年度統計関連学会連合大会, Sep 8, 2020
ベータカーネルを用いた境界バイアスのない直接型密度比推定

五十嵐, 岳

日本数学会2019年度年会, Mar 17, 2019

Professional Memberships

Research Projects

裾・境界バイアス問題のないノンパラメトリック直接型密度比推定量とその応用について

学術研究助成基金助成金若手研究(B), 独立行政法人日本学術振興会, Apr, 2017 - Mar, 2021

五十嵐岳
境界問題のないノンパラメトリックな多次元密度推定とその応用について

科学研究費補助金研究活動スタート支援, 独立行政法人日本学術振興会, Aug, 2015 - Mar, 2017

五十嵐岳

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