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Mixed integer second-order cone programming formulations for variable selection in linear regression

- Ryuhei Miyashiro, Yuichi Takano
- European Journal of Operational Research
- 2015

This paper concerns the method of selecting the best subset of explanatory variables in a multiple linear regression model. To evaluate a subset regression model, some goodness-of-fit measures, e.g.,â€¦ (More)

- Ryuhei Miyashiro, Tomomi Matsui
- Computers & OR
- 2006

This paper considers the break minimization problem in sports timetabling. The problem is to find, under a given timetable of a round-robin tournament, a home-away assignment that minimizes theâ€¦ (More)

- Ryuhei Miyashiro, Hideya Iwasaki, Tomomi Matsui
- PATAT
- 2002

In sports timetabling, finding feasible pattern sets for a round robin tournament is a significant problem. Although this problem has been tackled in several ways, good characterization of feasibleâ€¦ (More)

- Ryuhei Miyashiro, Tomomi Matsui
- Oper. Res. Lett.
- 2005

We propose a polynomial-time algorithm to find an equitable homeâ€“away assignment for a given timetable of a round-robin tournament. Our results give an answer to a problem raised by Elf et al. (Oper.â€¦ (More)

- Shinji Imahori, Tomomi Matsui, Ryuhei Miyashiro
- Annals OR
- 2014

A 2.75-approximation algorithm is proposed for the unconstrained traveling tournament problem, which is a variant of the traveling tournament problem. For the unconstrained traveling tournamentâ€¦ (More)

- Toshiki Sato, Yuichi Takano, Ryuhei Miyashiro, Akiko Yoshise
- Comp. Opt. and Appl.
- 2016

This paper concerns a method of selecting a subset of features for a logistic regression model. Information criteria, such as the Akaike information criterion and Bayesian information criterion, areâ€¦ (More)

The break minimization problem is to find a home-away assignment that minimizes the number of breaks for a given schedule of a round-robin tournament. In a recent paper, Elf et al. conjectured thatâ€¦ (More)

- Daisuke Yamaguchi, Shinji Imahori, Ryuhei Miyashiro, Tomomi Matsui
- Algorithmica
- 2011

This paper describes the traveling tournament problem, a well-known benchmark problem in the field of tournament timetabling. We propose an approximation algorithm for the traveling tournamentâ€¦ (More)

- Ryuhei Miyashiro, Tomomi Matsui, Shinji Imahori
- Annals OR
- 2012

In this abstract, we deal with the traveling tournament problem (TTP), which is a well-known benchmark problem established by Easton, Nemhauser and Trick [2]. We consider the case that both theâ€¦ (More)

- Ryuhei Miyashiro, Yuichi Takano
- Expert Syst. Appl.
- 2015