検索結果 303件中 1-20 を表示

  • Sparse kernel canonical correlation analysis for discovery of nonlinear interactions in high-dimensional data

    Yoshida Kosuke , Yoshimoto Junichiro , Doya Kenji

    Canonical correlation analysis (CCA) is a statistical tool for finding linear associations between different types of information. … Previous extensions of CCA used to capture nonlinear associations, such as kernel CCA, did not allow feature selection or capturing of multiple canonical components. … Using artificial datasets and nutrigenomic datasets, we show that TSKCCA can extract multiple, nonlinear associations among high-dimensional data and multiplicative interactions among variables. …

    BMC Bioinformatics 18, 2017-02-14

    機関リポジトリ DOI

  • A Nuclear Magnetic Resonance Spectroscopy Approach to Discriminate the Geographic Origin of Roasted Asian Sesame Oils

    Jin Gyungsu , Kim Jeongeun , Lee Yunhee , Kim Jinyeong , Akoh Casimir C. , Chun Hyang Sook , Ahn Sangdoo , Kim Byung Hee

    … <p>The aim of this study was to discriminate the geographic origin of Korean, Chinese, and Indian sesame oils distributed in Korea using <sup>1</sup>H NMR spectroscopy in combination with canonical discriminant analysis (CDA). … The variables selected for the CDA include the integration value of one peak (2.7208–2.8533 ppm) that signifies the CH<sub>2</sub> …

    Journal of Oleo Science 66(4), 337-344, 2017

    J-STAGE

  • A Nuclear Magnetic Resonance Spectroscopy Approach to Discriminate the Geographic Origin of Roasted Asian Sesame Oils

    Jin Gyungsu , Kim Jeongeun , Lee Yunhee , Kim Jinyeong , Akoh Casimir C. , Chun Hyang Sook , Ahn Sangdoo , Kim Byung Hee

    … <p>The aim of this study was to discriminate the geographic origin of Korean, Chinese, and Indian sesame oils distributed in Korea using <sup>1</sup>H NMR spectroscopy in combination with canonical discriminant analysis (CDA). … The variables selected for the CDA include the integration value of one peak (2.7208–2.8533 ppm) that signifies the CH<sub>2</sub> …

    Journal of Oleo Science, 2017

    J-STAGE

  • 尤度比を用いたモデル数削減と予測精度の維持

    津田 高治 , 今泉 忠

    … In this paper we suggest an approach to apply likelihood ratio test to 2 periods of explanatory variables' differential features to identify significant change between the 2 periods so as to limit frequency of rebuilding of predictive model, and the approach is applied to publicly available text data of news and its responses regarding Honda motors as well as its stock price data. …

    経営・情報研究 : 多摩大学研究紀要 (21), 45-60, 2017

    機関リポジトリ

  • Canonical Acoustics and Its Application to Surface Acoustic Wave on Acoustic Metamaterials

    Shen Jian Qi

    … shall treat some fundamental problems relevant to acoustic wave propagation alternatively by using canonical acoustics (a more concise and compact formalism of acoustic dynamics), in which an acoustic scalar potential and an acoustic vector potential <inline-formula><tex-math version="MathJax"><![CDATA[\((\Phi ,\mathbf{V})\)]]></tex-math></inline-formula>, instead of the conventional acoustic field quantities such as acoustic pressure and velocity field <inline-formula><tex-math version="MathJax"><![CDATA[\((p, …

    Journal of the Physical Society of Japan 85(8), 084401-1-10, 2016-07-13

    日本物理学会

  • Extracting nuclear sizes of medium to heavy nuclei from total reaction cross sections

    Horiuchi W. , Hatakeyama S. , Ebata S. , Suzuki Y.

    … To substantiate the treatment of the Coulomb breakup, we also evaluate the Coulomb breakup cross section due to the electric dipole field in a canonical-basis-time-dependent-Hartree-Fock-Bogoliubov theory in the three-dimensional coordinate space. … We find that the so-called reaction radius, sigma(R) = root sigma(R)/pi, for the proton target is very well approximated by a linear function of two variables, the matter radius and the skin thickness, in which three constants depend only on the incident energy. …

    Physical review C 93(4), 044611, 2016-04-20

    機関リポジトリ DOI

  • Canonical Correlation Analysis of Mongolian Teachers' Mathematical Knowledge for Teaching with a Focus on Concept Image and Concept Definition in Secondary Geometry

    PUREVDORJ Oyunaa

    … In this paper, Mongolian secondary school teachers' mathematical knowledge for teaching is analyzed using canonical correlation analysis (Hotelling, 1935) focusing on mathematical theory of concept image and concept definition (Tall & Vinner, 1981) of planes shapes in secondary geometry. … In order to identify within and between relationships, the canonical correlation analysis is conducted. …

    国際協力研究誌 = Journal of international development and cooperation 22(1・2), 121-139, 2016-03

    機関リポジトリ DOI

  • High-Accuracy Numerical Integration of Charged Particle Motion – with Application to Ponderomotive Force

    FURUKAWA Masaru , MATSUYAMA Akinobu , OHKAWA Yushiro

    … the Poisson tensor is decomposed and non-canonical variables are adopted. …

    Plasma and Fusion Research 11(0), 1303003-1303003, 2016

    J-STAGE

  • Real-time dynamics and proposal for feasible experiments of lattice gauge-Higgs model simulated by cold atoms

    Kuno Yoshihito , Kasamatsu Kenichi , Takahashi Yoshiro , Ichinose Ikuo , Matsui Tetsuo

    … Lattice gauge theory has provided a crucial non-perturbative method in studying canonical models in high-energy physics such as quantum chromodynamics. … In this paper, we first show that atomic description of the lattice gauge model allows us to explore real-time dynamics of the gauge variables by using the Gross-Pitaevskii equations. …

    New Journal of Physics 17, 2015-06-04

    機関リポジトリ DOI

  • 修正節点解析に基づく状態方程式の一定式化 (回路とシステム)

    斉藤 大輔 , 関根 敏和 , 高橋 康宏

    状態方程式は,最小数の変数(状態変数)でシステムを表現するので,システムの特牲を効率よく計算できる利点がある.回路の状態方程式は,正規木(規準木)を基に得る方法が知られているが,状態方程式を得るまでの手順が複雑である.したがって,特別な回路を対象とする場合を除いて,SPICEなどの汎用回路シミュレータでは状態変数解析法が用いられていない.本文では,制御電源を含む線形素子からなる回路の状態方程式を, …

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 114(425), 71-76, 2015-01-29

  • 東日本大震災後の初動期から応急対応期における自治体間協力による人的支援に関する実証的研究

    本莊 雄一 , 立木 茂雄

    … An initial exploratory canonical correlation analysis suggested two sets of variables, the established aid work and the extended aid work. …

    地域安全学会論文集 25(0), 13-22, 2015

    J-STAGE

  • ゴルフのパターヘッド運動による打球距離の判別

    土屋 茉由 , 穂苅 真樹

    … Four motion variables affecting the shot distance were selected by cluster analysis as follows: (1) The minimum displacement in the X axis direction before the impact, (2) The maximum displacement in the Y axis direction at the impact, (3) The angular velocity around the <i>z</i> … The canonical discriminant analysis was used to distinguish among the shot distances. … Objective variable was 3 kinds of the shot distances, and explanatory variable was 4 motion variables. …

    日本機械学会論文集 81(825), 14-00394-14-00394, 2015

    J-STAGE

  • New Monitoring Technique for Detecting Buckling in the Continuous Annealing Line Using Canonical Correlation Analysis

    HIRATA Takehide , KAWAHARA Yoshinobu , YAIRI Takehisa , ASANO Kazuya , MAEDA Ichiro , SASAKI Toshihiro , MACHIDA Kazuo

    … In this paper, a new monitoring method for detecting buckling in continuous annealing lines is proposed based on canonical correlation analysis. … It can extract not only relations among variables such as the strip temperature and tension but also the ones in the longitudinal direction of the strip and monitor changes of these relations. …

    SICE Journal of Control, Measurement, and System Integration 8(3), 214-220, 2015

    J-STAGE

  • ゴルフのパターヘッド運動による打球距離の判別

    土屋 茉由 , 穂苅 真樹

    … Four motion variables affecting the shot distance were selected by cluster analysis as follows: (1) The minimum displacement in the X axis direction before the impact, (2) The maximum displacement in the Y axis direction at the impact, (3) The angular velocity around the <i>z</i> … The canonical discriminant analysis was used to distinguish among the shot distances. … Objective variable was 3 kinds of the shot distances, and explanatory variable was 4 motion variables. …

    日本機械学会論文集 advpub(0), 2015

    J-STAGE

  • 柳井先生と多変量解析

    高根 芳雄

    … The various topics covered include constrained principal component analysis, extensions of Khatri's lemma, the Wedderburn-Guttman theorem, ridge operators, decompositions of the total association between two sets of variables, and ideal instruments. …

    行動計量学 41(2), 73-82, 2014

    J-STAGE

  • 災害時のソーシャルメディアと帰宅行動の関連性分析

    榎本 甫 , 桑野 将司 , 小池 淳司

     東日本大震災時,ソーシャルメディアが活発に利用され注目を浴びた.なかでもTwitterは,従来のマスメディアでは扱いきれない情報が多くやり取りされ,被災者の情報支援に役立った.しかし一方で,Twitterで発信される情報の信頼性は必ずしも担保されていない.そのような状況下で,Twitterにおけるテキスト情報が人々の行動にどう影響しているかは明らかではない.本研究では,ソーシャルメディア情報を用 …

    土木学会論文集D3(土木計画学) 70(1), 102-112, 2014

    機関リポジトリ J-STAGE

  • Phenotypic Plasticity of Vegetable Amaranth, Amaranthus tricolor L. under a Natural Climate

    Khanam Umma Khair Salma , Oba Shinya

    … The interactions between cultivars and climates showed significant effects on all variables examined. … Canonical discriminant analysis (CDA) was an effective method for clear separation or grouping of cultivars that may promote effective management and utilization in crop-breeding programmes. …

    Plant Production Science 17(2), 166-172, 2014

    J-STAGE

  • Effect of Multivariate Cauchy Mutation in Evolutionary Programming

    LEE Chang-Yong , PARK Yong-Jin

    … The conventional fast evolutionary programming in-cooperates the univariate Cauchy mutation in order to overcome the slow convergence rate of the canonical Gaussian mutation. … variables, while the conventional method utilizes <i>n</i> … independent random variables from a univariate Cauchy distribution, the proposed method adopts <i>n</i> … mutually dependent random variables that satisfy a multivariate Cauchy distribution. …

    IEICE Transactions on Information and Systems E97.D(4), 821-829, 2014

    J-STAGE

  • A Multi-SOM with Canonical Variate Analysis for Chemical Process Monitoring and Fault Diagnosis

    Song Yu , Jiang Qingchao , Yan Xuefeng , Guo Meijin

    … When the fault detection or fault diagnosis problem is considered as a binary or multiple class classification problem, there are some challenges, i.e., highly dimensional input variables, high correlation among some input variables, overlap among the input variable spaces of different fault classes and invisible distribution of fault classes. …

    JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 47(1), 40-51, 2014

    J-STAGE

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