Rchr
J-GLOBAL ID:200901061861443474
Update date: Sep. 11, 2024
Iwashita Toshiya
イワシタ トシヤ | Iwashita Toshiya
Research field (2):
Basic mathematics
, Applied mathematics and statistics
Research keywords (1):
Multivariate Analysis, Asymptotic Theory
Research theme for competitive and other funds (9):
- 2018 - 2023 多変量楕円母集団の下での新たな検定手法の開発とその応用
- 2018 - 2021 Extension of Matrix variate distribution
- 2006 - 2008 A study of multivariate multiple comparison procedure in non-regulardata and its applications
- 1996 - 1998 The Guidance of the Asymptotic Expansion Formulae on the Multivariate Inference
- 1995 - 1996 Validation study of assays alternative to animal experiments from a statistical viewpoint
- 1994 - 1995 Relation of the precision of asymptotic expoansions with sample sizes and dimensionality in statistical inference
- 1993 - 1994 Research on the method of data analysis for drug development
- 1994 - 高次漸近理論に基づく多変量解析
- 1994 - Multivaritate Analysis based on higher order asymptotic theory
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Papers (20):
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Toshiya Iwahsita, Bernhard Klar. A gamma tail statistic and its asymptotics. STATISTICA NEERLANDICA. 2024. Vol. 78, Issue 2. 261-474
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Toshiya Iwashita, Bernhard Klar. A necessary test for elliptical symmetry based on the uniform distribution over the Stiefel manifold. SUT Journal of Mathematics. 2020. 56. 2. 129-145
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Aya Shinozaki, Hiroki Hashiguchi, Toshiya Iwashita. DISTRIBUTION OF THE LARGEST EIGENVALUE OF AN ELLIPTICAL WISHART MATRIX AND ITS SIMULATION. JOURNAL JAPANESE SOCIETY OF COMPUTATIONAL STATISTICS. 2018. 30. 2. 1-12
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Toshiya Iwashita, Bernhard Klar, Moe Amagai, Hiroki Hashiguchi. A test procedure for uniformity on the Stiefel manifold based on projection. STATISTICS & PROBABILITY LETTERS. 2017. 128. 89-96
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Toshiya Iwashita, Bernhard Klar. The joint distribution of Studentized residuals under elliptical distributions. JOURNAL OF MULTIVARIATE ANALYSIS. 2014. 128. 203-209
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MISC (16):
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岩下 登志也. サイエンスへの招待 非正規分布に基づく統計解析. 理大科学フォーラム : 東京理科大学科学教養誌. 2020. 37. 4. 24-29
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篠崎 絢, 橋口 博樹, 岩下 登志也. 楕円母集団下でのウィシャート行列の最大最小固有値の分布について. 日本計算機統計学会大会論文集. 2017. 31. 33-36
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雨ヶ谷 萌, 岩下 登志也, 橋口 博樹, Klar Bernhard. 主成分射影に基づく超球面一様性の検定. 日本計算機統計学会大会論文集. 2016. 30. 101-102
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柿沢佳秀、岩下登志也. 多変量解析における漸近展開:微分作用素の使用の観点から. 国際数理科学協会会報. 2008. 56. 14-25
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Kouji Tahata, Toshiya Iwashita, Sadao Tomizawa. Measure of departure from symmetry of cumulative marginal probabilities for square contingency tables with ordered categories. 2006. 42. 1. 7-29
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Lectures and oral presentations (13):
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Exact and approximate distributions of the largest eignevalues of singuar Wishart matrix
(DAGSTAT 2019 2019)
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A Necessary Test for Elliptical Symmetry
(DAGSTAT 2019 2019)
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特異ウィシャート行列の最大・最小固有値分布について
(科研費シンポジウム「多変量データ解析における理論と応用」 2018)
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楕円対称性の必要性検定
(科研費シンポジウム「多変量データ解析における理論と応用」 2018)
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Numerical computation for the distribution of largeest eigenvalue under elliptical model
(Statistical Computing : Challenges and Opportunities in Data Science 2018)
more...
Education (2):
- - 1994 Osaka University Graduate School, Division of Engineering Science Mathemtaical Science
- - 1994 Osaka University Graduate School, Division of Engineering Science Mathemtaical Science
Professional career (1):
- Doctor of Science (Osaka University)
Committee career (2):
- 2009/10/01 - 2011/09/30 日本統計学会 2010・2011年度評議員選挙及び2011・2012年度会長選挙管理委員
- 2004/09 - 2006/09 日本統計学会 渉外担当理事
Association Membership(s) (3):
Japan Statistical Society
, 日本計算機統計学会
, 日本数学会
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