Shinji Imahori

Hideki Hashimoto, Mutsunori Yagiura, Shinji Imahori, Toshihide Ibaraki: Recent progress of local search in handling the time window constraints of the vehicle routing problem. Annals OR 204(1): 171-187 (2013)

Ryuhei Miyashiro, Tomomi Matsui, Shinji Imahori: An approximation algorithm for the traveling tournament problem. Annals OR 194(1): 317-324 (2012)

Yuma Tanaka, Shinji Imahori, Mihiro Sasaki, Mutsunori Yagiura: An LP-based heuristic algorithm for the node capacitated in-tree packing problem. Computers & OR 39(3): 637-646 (2012)

Shinji Imahori, Yuichiro Miyamoto, Hideki Hashimoto, Yusuke Kobayashi, Mihiro Sasaki, Mutsunori Yagiura: The complexity of the node capacitated in-tree packing problem. Networks 59(1): 13-21 (2012)

Daisuke Yamaguchi, Shinji Imahori, Ryuhei Miyashiro, Tomomi Matsui: An Improved Approximation Algorithm for the Traveling Tournament Problem. Algorithmica 61(4): 1077-1091 (2011)

Greg Aloupis, Jean Cardinal, Sébastien Collette, Shinji Imahori, Matias Korman, Stefan Langerman, Oded Schwartz, Shakhar Smorodinsky, Perouz Taslakian: Colorful Strips. Graphs and Combinatorics 27(3): 327-339 (2011)

Jean Cardinal, Erik D. Demaine, Martin L. Demaine, Shinji Imahori, Tsuyoshi Ito, Masashi Kiyomi, Stefan Langerman, Ryuhei Uehara, Takeaki Uno: Algorithmic Folding Complexity. Graphs and Combinatorics 27(3): 341-351 (2011)

Md. Bahlul Haider, Shinji Imahori, Kokichi Sugihara: Success guaranteed routing in almost Delaunay planar nets for wireless sensor communication. IJSNet 9(2): 69-75 (2011)

Shinji Imahori, Tomomi Matsui, Ryuhei Miyashiro: A 2.75-Approximation Algorithm for the Unconstrained Traveling Tournament Problem. CoRR abs/1110.0620 (2011)

Hideki Hashimoto, Mutsunori Yagiura, Shinji Imahori, Toshihide Ibaraki: Recent progress of local search in handling the time window constraints of the vehicle routing problem. 4OR 8(3): 221-238 (2010)

Shinji Imahori, Mutsunori Yagiura: The best-fit heuristic for the rectangular strip packing problem: An efficient implementation and the worst-case approximation ratio. Computers & OR 37(2): 325-333 (2010)

Greg Aloupis, Jean Cardinal, Sébastien Collette, Shinji Imahori, Matias Korman, Stefan Langerman, Oded Schwartz, Shakhar Smorodinsky, Perouz Taslakian: Colorful Strips. LATIN 2010: 2-13

Yasuhiro Ohara, Shinji Imahori, Rodney Van Meter: MARA: Maximum Alternative Routing Algorithm. INFOCOM 2009: 298-306

Jean Cardinal, Erik D. Demaine, Martin L. Demaine, Shinji Imahori, Stefan Langerman, Ryuhei Uehara: Algorithmic Folding Complexity. ISAAC 2009: 452-461

Daisuke Yamaguchi, Shinji Imahori, Ryuhei Miyashiro, Tomomi Matsui: An Improved Approximation Algorithm for the Traveling Tournament Problem. ISAAC 2009: 679-688

Greg Aloupis, Jean Cardinal, Sébastien Collette, Shinji Imahori, Matias Korman, Stefan Langerman, Oded Schwartz, Shakhar Smorodinsky, Perouz Taslakian: Colorful Strips. CoRR abs/0904.2115 (2009)

Toshihide Ibaraki, Shinji Imahori, Koji Nonobe, Kensuke Sobue, Takeaki Uno, Mutsunori Yagiura: An iterated local search algorithm for the vehicle routing problem with convex time penalty functions. Discrete Applied Mathematics 156(11): 2050-2069 (2008)

Toshihide Ibaraki, Shinji Imahori, Mutsunori Yagiura: Hybrid Metaheuristics for Packing Problems. Hybrid Metaheuristics 2008: 185-219

Hideki Hashimoto, Toshihide Ibaraki, Shinji Imahori, Mutsunori Yagiura: The vehicle routing problem with flexible time windows and traveling times. Discrete Applied Mathematics 154(16): 2271-2290 (2006)

Nobutomo Fujiwara, Shinji Imahori, Tomomi Matsui, Ryuhei Miyashiro: Constructive Algorithms for the Constant Distance Traveling Tournament Problem. PATAT 2006: 135-146

Shinji Imahori, Mutsunori Yagiura, Toshihide Ibaraki: Improved local search algorithms for the rectangle packing problem with general spatial costs. European Journal of Operational Research 167(1): 48-67 (2005)

Toshihide Ibaraki, Shinji Imahori, Mikio Kubo, T. Masuda, Takeaki Uno, Mutsunori Yagiura: Effective Local Search Algorithms for Routing and Scheduling Problems with General Time-Window Constraints. Transportation Science 39(2): 206-232 (2005)

Shinji Imahori, Mutsunori Yagiura, Toshihide Ibaraki: Local search algorithms for the rectangle packing problem with general spatial costs. Math. Program. 97(3): 543-569 (2003)