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1 0 0 0 OA BEHAVIOUR OF JACKKNIFE ESTIMATORS IN TERMS OF ASYMPTOTIC DEFICIENCY UNDER TRUE AND ASSUMED MODELS

著者: Akahira Masafumi
出版者: 日本統計学会
雑誌: Journal of the Japan Statistical Society (ISSN:03895602)
巻号頁・発行日: vol.19, no.2, pp.179-196, 1989

The problem on jackknifing estimators is investigated in the presence of nuisanceparameters from the viewpoint of higher order asymptotics. It is shown that theasymptotic deficiency of the jackknife estimator relative to the bias-adjusted maximumlikelihood estimator (MLE) is equal to zero under true and assumed m.odcls. Moreover,the asymptotic deficiency of the MLE or the jackknife estimator under the assumedmodel relative to that under the true model is given.

2013-03-01 08:30:53
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http://hdl.handle.net/2241/118426

1 0 0 0 OA Variable Selection for Bayesian Linear Regression Model in a Finite Sample Size

著者: KABE Satoshi KANAZAWA Yuichiro
出版者: University of Tsukuba. Graduate School of Systems and Information Engineering. Doctoral Program in Social Systems & Management
巻号頁・発行日: 2013-02

In Bayesian data analysis, a deviance information criterion (DIC)proposed by Spiegelhalter et al. (2002) is widely used for the modelselection, since this criterion is relatively easy to calculate and applicableto a wide range of statistical models. Spiegelhalter et al. (2002)gave an asymptotic justification of DIC in the case where the numberof observations grows with respect to the number of parameters.In small-sample cases, however, the estimated asymptotic bias of DICmight underestimate the true bias (Burnham, 2002). In this paper, wepropose a finite-sample bias corrected information criterion (ICBL) forthe Bayesian linear regression models with conjugate priors, as AICCproposed by Sugiura (1978) in frequentist framework. We examine theperformance of the proposed information criterion relative to the DICfor small-sample cases by simulation, and found that our proposedinformation criterion outperforms DIC.

2013-03-01 08:30:43
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http://hdl.handle.net/2241/118425

1 0 0 0 OA ON THE NEW APPROXIMATION TO NON-CENTRAL T-DISTRIBUTIONS

著者: Akahira Masafumi Sato Michikazu Torigoe Norio
出版者: 日本統計学会
雑誌: Journal of the Japan Statistical Society (ISSN:03895602)
巻号頁・発行日: vol.25, no.1, pp.1-18, 1995

Recently a new approximation to a percentage point of non-centralt-distributions was proposed by Akahira [1]. In this paper the approximationformula is presented and the existence and uniqueness of a solution of theequation on the formula is proved. Numerical results are also given.

2013-03-01 08:30:37
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http://hdl.handle.net/2241/118436

1 0 0 0 OA アカハライモリの資源化とモデル動物化を支える情報・技術基盤の研究

著者: 千葉親文
巻号頁・発行日: 2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:基盤研究(B)2009-2011

2013-03-01 08:30:32
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http://hdl.handle.net/2241/118433

1 0 0 0 OA THE STRUCTURE OF THE ASSUMED MODEL THROUGH THE DISCRETIZED LIKELIHOOD ESTIMATOR

著者: Akahira Masafumi
出版者: 日本統計学会
雑誌: Journal of the Japan Statistical Society (ISSN:03895602)
巻号頁・発行日: vol.23, no.1, pp.19-31, 1993

In the presence of a nuisance parameter the asymptotic deficiency of the discretizedlikelihood estimator (DLE) relative to the bias-adjusted maximum likelihood estimatoris obtained under the assumed model. It consists of two parts. One is the lossof information associated with the DLE of the parameter to be estimated. Another,is that due to the "incorrectness" of the assumed model. Some examples on the normaland Weibull type distributions are given.

2013-03-01 08:30:26
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http://hdl.handle.net/2241/118432

1 0 0 0 OA 次世代シミュレーション環境のための一般化固有値解法の開発と応用

著者: 櫻井鉄也
巻号頁・発行日: 2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:基盤研究(A)2009-2011

2013-03-01 08:30:21
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http://hdl.handle.net/2241/118430

1 0 0 0 OA 北アフリカ諸国における産業発展のルーツとプロセスの実態的解明

著者: 柏木健一
巻号頁・発行日: 2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:若手研究(B)2008-2011

2013-03-01 08:30:15
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http://hdl.handle.net/2241/118428

1 0 0 0 OA Time resolved imaging of carrier and thermal transport in silicon

著者: Hurley D. H. Wright O. B. Matsuda O. Shinde S. L.
出版者: American Institute of Physics
雑誌: Journal of Applied Physics (ISSN:00218979)
巻号頁・発行日: vol.107, no.2, pp.023521, 2010-01-15
被引用文献数: 23

We use ultrashort optical pulses to microscopically image carrier and thermal diffusion in two spatial dimensions in pristine and mechanically polished surfaces of crystalline silicon. By decomposing changes in reflectivity in the latter sample into a transient component that varies with delay time and a steady-state component that varies with pump chopping frequency, the influence of thermal diffusion is isolated from that of carrier diffusion and recombination. Additionally, studies using carrier injection density as a parameter are used to clearly identify the carrier recombination pathway.

2013-03-01 07:11:44
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1 0 0 0 OA The Economic Ideas of Classical Athens

著者: Amemiya Takeshi
出版者: Graduate School of Economics, Kyoto University
雑誌: The Kyoto Economic Review (ISSN:13496778)
巻号頁・発行日: vol.73, no.2, pp.57-74, 2004

Before I discuss the main theme, I first discuss the modernist-primitivist controversy and the formalist-substantivist controversy regarding the state of the economy in Classical Athens and its method of analysis, for I consider this topic to be the best introduction to the subjects that follow. Second, I give a brief review of the Athenian economy of the 4th century B.C., the period about which relatively good information about the economy is available, as a background for the economic ideas. I take a modernist view of the Athenian economy of the 4th century B.C. The main theme begins with the discussion of the economic writings of Xenophon, for among classical writers he showed a best understanding of the working of the economy. After this, I discuss Ethics of Plato and Aristotle, Plato's economics, and Aristotle’s economics, in that order. This order is chosen because for Plato and Aristotle economics is a part of ethics. I call their economics the economics of a broad sense, in contrast to the narrow modern economics devoid of normative considerations.

2013-03-01 06:50:19
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http://hdl.handle.net/2433/24832

1 0 0 0 OA 新規サイトカインIL-17F の気道リモデリングへの関与

著者: 川口未央
巻号頁・発行日: 2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:若手研究(B)2008-2011

2013-02-28 08:31:19
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http://hdl.handle.net/2241/118420

1 0 0 0 OA 非相似形等寿命線図に基づく疲労寿命予測法の検証と影響因子に関する基礎研究

著者: 河井昌道
巻号頁・発行日: 2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:基盤研究(B)2008-2011

2013-02-28 08:30:56
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http://hdl.handle.net/2241/118412

1 0 0 0 OA 有質量な可積分場の理論の表現論的構造

著者: 竹山美宏
巻号頁・発行日: 2012

科学研究費補助金研究成果報告書:若手研究(B)2008-2010

2013-02-28 08:30:51
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http://hdl.handle.net/2241/118423

1 0 0 0 OA 内生的成長理論を用いた世界の二極化構造の動学的解明

著者: 桑原史郎
巻号頁・発行日: 2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:若手研究(B)2008-2011

2013-02-28 08:30:45
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http://hdl.handle.net/2241/118422

1 0 0 0 OA 江戸藩邸作事における建設マネジメント手法に関する文理統合的研究

著者: 藤川昌樹
巻号頁・発行日: 2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:基盤研究(B)2008-2011

2013-02-28 08:30:34
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http://hdl.handle.net/2241/118413

1 0 0 0 OA 統計学における逆問題的構造の解明とその応用

著者: 赤平昌文
巻号頁・発行日: 2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:挑戦的萌芽研究2009-2011

2013-02-28 08:30:29
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http://hdl.handle.net/2241/118415

1 0 0 0 OA A HIGHER ORDER LARGE-DEVIATION APPROXIMATION FOR THE DISCRETE DISTRIBUTIONS

著者: Akahira Masafumi Takahashi Kunihiko
出版者: 日本統計学会
雑誌: Journal of the Japan Statistical Society (ISSN:03895602)
巻号頁・発行日: vol.31, no.2, pp.257-267, 2001-12

For a sum of independent discrete random variables, its higher order large-deviation approximation is discussed. An approximation to the tail probability of the distribution of the sum is provided, and its numerical comparison with other approximations is done in the binomial case. Consequently, the approximation formula is seen to be more accurate.

2013-02-28 08:30:23
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http://hdl.handle.net/2241/118421

1 0 0 0 OA WEIGHTED LOSS FUNCTIONS FOR SET ESTIMATION AND TESTING HYPOTHESES

著者: Maihara Hirosuke Akahira Masafumi
出版者: 日本統計学会
雑誌: Journal of the Japan Statistical Society (ISSN:03895602)
巻号頁・発行日: vol.34, no.2, pp.189-206, 2004-12

From the decision-theoretic viewpoint, using a weighted loss we compare the risks of testing procedures in the location and scale parameter cases. We also get numerically the minimax solution of Bayes testing procedures w. r. t. a parameter of the prior distribution, under the weighted loss.