Parametric simplex algorithms for solving a special class of nonconvex minimization problems. - Hiroshi Konno; Yasutoshi Yajima; Tomomi Matsui (J. Glob. Optim., 1991)

Efficient algorithms for solving rank two and rank three bilinear programming problems. - Yasutoshi Yajima; Hiroshi Konno (J. Glob. Optim., 1991)

Parametric simplex algorithms for a class of NP-Complete problems whose average number of steps is polynomial. - Hiroshi Konno; Takahito Kuno; Yasutoshi Yajima (Comput. Optim. Appl., 1992)

An outer approximation method for minimizing the product of several convex functions on a convex set. - Takahito Kuno; Yasutoshi Yajima; Hiroshi Konno (J. Glob. Optim., 1993)

Calculating a minimal sphere containing a polytope defined by a system of linear inequalities. - Hiroshi Konno; Yasutoshi Yajima; Ayumi Ban (Comput. Optim. Appl., 1994)

Global minimization of a generalized convex multiplicative function. - Hiroshi Konno; Takahito Kuno; Yasutoshi Yajima (J. Glob. Optim., 1994)

A Polyhedral Approach for Nonconvex Quadratic Programming Problems with Box Constraints. - Yasutoshi Yajima; Tetsuya Fujie (J. Glob. Optim., 1998)

Approximate Reducts of an Information System. - Tien-Fang Kuo; Yasutoshi Yajima (RSFDGrC, 2003)

Optimization approaches for semi-supervised learning. - Yasutoshi Yajima; Takashi Hoshiba (ICMLA, 2005)

Linear programming approaches for multicategory support vector machines. - Yasutoshi Yajima (Eur. J. Oper. Res., 2005)

A cutting plane algorithm for multiclass kernel discriminations. - Tien-Fang Kuo; Yasutoshi Yajima (GrC, 2006)

Optimization Approaches for Semi-Supervised Multiclass Classification. - Yasutoshi Yajima; Tien-Fang Kuo (ICDM Workshops, 2006)

One-Class Support Vector Machines for Recommendation Tasks. - Yasutoshi Yajima (PAKDD, 2006)

Efficient Formulations for 1-SVM and their Application to Recommendation Tasks. - Yasutoshi Yajima; Tien-Fang Kuo (J. Comput., 2006)

Semi-supervised Kernel Logistic Regression and Its Extension to Active Learning Based on A-Optimality. - Yasutoshi Yajima; Teppei Sato (ICDM Workshops, 2007)

Predicting purchase preferences using semi-supervised one-class SVM with graph kernels. - Yasutoshi Yajima (SMC, 2007)

Integer Linear Complementary Problem. - Panos M. Pardalos; Yasutoshi Yajima (Encyclopedia of Optimization, 2009)

Convex Envelopes in Optimization Problems. - Yasutoshi Yajima (Encyclopedia of Optimization, 2009)

Quadratic Knapsack. - Yasutoshi Yajima (Encyclopedia of Optimization, 2009)

Ranking and selecting terms for text categorization via SVM discriminate boundary. - Tien-Fang Kuo; Yasutoshi Yajima (Int. J. Intell. Syst., 2010)