信州大学HOMEENGLISH交通・キャンパス案内

研究者総覧研究者総覧

研究者、研究内容などで検索
項目別検索はこちら

椎名洋  シイナ ヨウ

教員組織学術研究院(社会科学系)電話番号
教育組織経法学部 応用経済学科FAX番号
職名教授メールアドレス
住所長野県松本市旭3-1-1信州大学経済学部ホームページURL

更新日:2018/08/16

プロフィール

研究分野
統計科学
現在の研究課題
パラメトリックな統計モデルにおける推定・検定、特に統計的決定理論の立場から見た、優れた推定量の導出

多変量統計における、コンピューターを用いた記述的統計

情報幾何

所属学会
所属学会
日本統計学会
日本数学界
学歴
出身大学院
1992 , 東京大学 , 経済学研究科

出身学校・専攻等(大学院を除く)
1986 , 東京大学 , 法学部

取得学位
経済学博士 , 東京大学
研究職歴等
研究職歴
2004- , 信州大学 経済学部 教授
1995-2004 , 信州大学 経済学部 助教授
1992-1995 , 信州大学 経済学部 講師

研究職歴以外の職歴
2007-2009 , 日本統計学会学会誌(和文)編集委員

研究活動業績

研究業績(著書・
発表論文等)
著書
統計学
東京図書 , :87-116 2013
Author:椎名 洋


大学生の出会う経済・経営問題
創成社 , :235-244 2012
Author:椎名 洋


論文
Asymptotic expansion of the risk of maximum likelihood estimator with respect to $\alpha$-divergence
Communications in Statistics –Theory and Methods--,47(16):4059-4087 2018
Author:Yo Sheena


Asymptotic Expansion of Risk for a Regression Model with respect to $\alpha$-Divergence with an Application to the Sample Size Problem
Far East Journal of Theoretical Statistics,53(4):187-230 2017
Author:Yo Sheena


Inference on the eigenvalues of the covariance matrix of a multivariate normal distribution -geometrical view-
Journal of Statistical Planning and Inference,150:66-83 2014
Author:Yo Sheena


Modified estimators of the contribution rates of population eigenvalues
JOURNAL OF MULTIVARIATE ANALYSIS,115:301-316 2013(Mar.)
Author:Yo Sheena


Admissible estimator of the eigenvalues of the variance-covariance matrix for multivariate normal distributions
JOURNAL OF MULTIVARIATE ANALYSIS,102(4):801-815 2011(Apr.)
Author:Yo Sheena; Akimichi Takemura


Serum Fragmented Cytokeratin 18 Levels Reflect the Histologic Activity Score of Nonalcoholic Fatty Liver Disease More Accurately Than Serum Alanine Aminotransferase Levels
JOURNAL OF CLINICAL GASTROENTEROLOGY,44(6):440-447 2010(Jul.)
Author:Tsutsui, Masaru; Tanaka, Naoki; Kawakubo, Masatomo; Sheena, Yo; Horiuchi, Akira; Komatsu, Michiharu; Nagaya, Tadanobu; Joshita, Satoru; Umemura, Takeji; Ichijo, Tetsuya; Matsumoto, Akihiro; Yoshizawa, Kaname; Aoyama, Toshifumi; Tanaka, Eiji; Sano, Kenji


Asymptotic Distribution of Wishart Matrix for Block-wise Dispersion of Population Eigenvalues
Journal of Multivariate Analysis,99(4):751-775 2008
Author:Yo Sheena; Akimichi Takemura


Inference on Eigenvalues of Wishart Distribution Using Asymptotics with respect to the Dispersion of Population Eigenvalues
Sankhya,69(4):717-733 2007
Author:Yo Sheena; Akimichi Takemura


An asymptotic expansion of Wishart distribution when the population eigenvalues are infinitely dispersed
Statistical Methodology,4(2):158-184 2007
Author:Yo Sheena; Akimichi Takemura


Useful parameters for distinguishing nonalcoholic steatohepatitis with mild steatosis from cryptogenic chronic hepatitis in the Japanese population
LIVER INTERNATIONAL,26(8):956-963 2006
Author:Tanaka, N; Tanaka, E; Sheena, Y; Komatsu, M; Okiyama, W; Misawa, N; Muto, H; Umemura, T; Ichijo, T; Matsumoto, A; Yoshizawa, K; Horiuchi, A; Kiyosawa, K


Magnetic resonance and computed tomography-based scoring system for the differential diagnosis of vertebral fractures caused by osteoporosis and malignant tumors
JOURNAL OF ORTHOPAEDIC SCIENCE,10(4):345-352 2005
Author:Yuzawa, Y; Ebara, S; Kamimura, M; Tateiwa, Y; Kinoshita, T; Itoh, H; Takahashi, J; Karakida, O; Sheena, Y; Takaoka, K


Order-preserving estimators and an inequality on the integration of zonal polynomial
Communications in Statistics -Theory and Methods-,34(7):1503-1516 2005
Author:Yo Sheena


New estimator for functions of the canonical correlation coefficients
Journal of Statistical Planning and Inference,131(1):41-61 2005
Author:Yo Sheena and Arjun, K. Gupta


Distribution of eigenvalues and eigenvectors of Wishart matrix when the population eigenvalues are infinitely dispersed and its application to minimax estimation of covariance matrix
Journal of Multivariate Analysis,94:271--299 2005
Author:Akimichi Takemura and Yo Sheena


Estimation of the eigenvalues of noncentrality parameter matrix in noncentral Wishart distribution
Journal of Multivariate Analysis,93(1):1-20 2005
Author:Arjun, K. Gupta, Yo Sheena and Yasunori Fujikoshi


Estimation of a multivariate normal covariance matrix under a certain structure
Statistics,38(5):371--379 2004(Oct.)
Author:Arjun, K. Gupta and Yo Sheena


New estimators of discriminant coefficients as the gradient of log-odds
Annals of the Institute of Statistical Mathematics,56(4):757-770 2004
Author:Yo Sheena and Arjun K. Gupta


Estimation of the eigenvalues of noncentrality parameter in matrix variate noncentral beta distribution
Annals of the Institute of Statistical Mathematics,56(1):101-125 2004
Author:Yo Sheena, Arjun K. Gupta, Yasunori Fujikoshi


On Minimaxity of the Normal Precision Matrix Estimator of Krishnamoorthy and Gupta
Statistics,37(5):387-399 2003(Oct.)
Author:Yo Sheena


Estimation of the multivariate normal covariance matrix under some restrictions
Statistics and Decisions,21:327-342 2003
Author:Yo Sheena, Arjun K. Gupta


On Minimaxity of some orthogonally Invariant Estimators of Bivariate Normal Dispersion Matrix
Journal of Japan Statistical Society,32(2):193-207 2002
Author:Yo Sheena


Inadmissibility of Non-order-Preserving Orthogonally Invariant Estimators of the Precision Matrix under Stein's Loss
Calcutta Statistical Association Bulletin,53:185-202 2002
Author:Yo Sheena


Early-phase enhanced inflammatory reaction after spinal instrumentation surgery
SPINE,26(15):1698-1704 2001
Author:Takahashi, J; Ebara, S; Kamimura, M; Kinoshita, T; Itoh, H; Yuzawa, Y; Sheena, Y; Takaoka, K


Unbiased estimator of risk for an orthogonally invariant estimator of a covariance matrix
Journal of Japan Statistical Society,25(1):35-48 1995
Author:Yo Sheena


Inadmissibility of non-order-preserving orthogonally invariant estimators of the covariance matrix in the case of Stein's loss
Journal of Multivariate Analysis,41(1):117-131 1992
Author:Yo Sheena, Akimichi Takemura


学会発表
Asymptotic Expansion of Divergence between Parametric Probability Distributions
統計数理研究所セミナー 2016(Oct. 05)
Author:椎名洋


パラメトリックな確率分布間のDivergenceの漸近展開
日本統計学会 , 2015年度統計関連学会連合大会 2015(Sep. 08)
Author:椎名 洋

研究費
科学研究費補助金(研究代表者)
2013 - 2017 , 多変量分布が作るリーマン空間の幾何学的考察 , 基盤研究(C)
2007 - 2010 , 多変量分布の新たな視点に基づく解析 , 基盤研究(C)
2003 - 2006 , 統計的決定理論に基づく多変量推定量の開発 , 基盤研究(C)
研究諸活動
学術専門雑誌等編集
2014-2016 , 応用統計学会
2007-2008 , 日本統計学会