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英文論文誌　Journal of the Operations Research Society of Japan (2020) Vol.64 Vol.63 Vol.62 Vol.61 Vol.60 Vol.59 Vol.58 Vol.57 Vol.56 Vol.55 Vol.54 Vol.53 Vol.52 Vol.51 Vol.50 Vol.49 Vol.48 Vol.47 Vol.46 Vol.45 Vol.44 Vol.43 Vol.42 Vol.41 Vol.40 Vol.39 Vol.38 Vol.37 Vol.36 Vol.35 Vol.34 Vol.33 Vol.32 Vol.31 Vol.30 Vol.29 Vol.28 Vol.27 Vol.26 Vol.25 Vol.24 Vol.23 Vol.22 Vol.21 Vol.20 Vol.19 Vol.18 Vol.17 Vol.16 Vol.15 Vol.14 Vol.13 Vol.12 Vol.11 Vol.10 Vol.9 Vol.8 Vol.7 Vol.6 Vol.5 Vol.4 Vol.3 Vol.2 Vol.1 No.1 No.2 No.3 No.4 Vol.63 No.1 ONE-WAY TRADING PROBLEMS VIA LINEAR OPTIMIZATION Hiroshi Fujiwara (Shinshu University), Naohiro Araki (Microtech Corp.) and Hiroaki Yamamoto (Shinshu University) MONTE CARLO ALGORITHM FOR CALCULATING THE SHAPLEY VALUES OF MINIMUM COST SPANNING TREE GAMES Kazutoshi Ando and Koichi Takase (Shizuoka University) ▲ Vol.63 No.2 AN EFFICIENT BRANCH-AND-CUT ALGORITHM FOR SUBMODULAR FUNCTION MAXIMIZATION Naoya Uematsu, Shunji Umetani (Osaka University) and Yoshinobu Kawahara (Kyushu University) IMPROVING APPROXIMATION RATIOS FOR THE CLUSTERED TRAVELING SALESMAN PROBLEM Masamune Kawasaki (Tokyo Institute of Technology) and Kenjiro Takazawa (Hosei University) ▲ Vol.63 No.3 A NOTE ON A NEARLY UNIFORM PARTITION INTO COMMON INDEPENDENT SETS OF TWO MATROIDS Satoru Fujishige (RIMS, Kyoto University), Kenjiro Takazawa (Hosei University) and Yu Yokoi (National Institute of Informatics) A NOTE ON ACCELERATED PROXIMAL GRADIENT METHOD FOR ELASTOPLASTIC ANALYSIS WITH TRESCA YIELD CRITERION Wataru Shimizu (IHI Corporation) and Yoshihiro Kanno (The University of Tokyo) ▲ Vol.63 No.4 ASSET ALLOCATION WITH ASSET-CLASS-BASED AND FACTOR-BASED RISK PARITY APPROACHES Hirotaka Kato and Norio Hibiki (Keio University) LIMIT OPERATION IN PROJECTIVE SPACE FOR CONSTRUCTING NECESSARY OPTIMALITY CONDITION OF POLYNOMIAL OPTIMIZATION PROBLEM Tomoyuki Iori and Toshiyuki Ohtsuka (Kyoto University) ▲