T. Ono, S. Imahori: "Sports scheduling: Number of trips in the traveling tournament problem," ICIAM 2023, August 2023 (Tokyo, Japan)

S. Imahori: "Two-dimensional rectangular bin packing problem in glass industry," EURO 2019, June 2019 (Dublin, Ireland) 

T. Yamauchi, M. Takamatsu, S. Imahori: "Optimizing train stopping patterns for congestion management," The 23rd International Symposium on Mathematical Programming (ISMP 2018), July 2018, (Bordeaux, France) 

S. Imahori: "Heuristic algorithms for 2D and 3D packing problem," OR58, September 2016 (Portsmouth, UK) 

S. Imahori: "Analysis of solution representation for the rectangle packing problem," 13th ESICUP Meeting, May 2016 (Ibiza, Spain) 

Y. Hu, S. Fukatsu, H. Hashimoto, S. Imahori, M. Yagiura: "Heuristics for the Bitmap Shape Packing Problem: Efficient Implementations and Placement Strategies," 13th ESICUP Meeting, May 2016 (Ibiza, Spain) 

H. Iwasawa, Y. Hu, H. Hashimoto, S. Imahori, M. Yagiura: "A Heuristic Algorithm for the Container Loading Problem of Challenge Renault/ESICUP," 12th ESICUP Meeting, March 2015 (Portsmouth, UK) 

S. Imahori, H. Iwasawa: "Efficient Local Search Algorithms for Three-Dimensional Packing Using Sequence-Triple," IFORS 2014, July 2014 (Barcelona, Spain) 

Y. Hu, H. Hashimoto, S. Imahori, M. Yagiura: "A Partition-based Heuristic Algorithm for the Large-scale Rectilinear Block Packing Problem," IFORS 2014, July 2014 (Barcelona, Spain) 

H. Iwasawa, S. Imahori: "Efficient Local Search Heuristics for Rectangle Packing Using Sequence-Pair," 11th ESICUP Meeting, March 2014 (Beijing, China) 

Y. Hu, H. Hashimoto, S. Imahori, M. Yagiura: "Efficient Implementations of Construction Heuristic Algorithms for the Rectilinear Block Packing Problem," 11th ESICUP Meeting, March 2014 (Beijing, China) 

S. Imahori, C. Wang: "Construction Heuristic Algorithms for Soft Rectangle Packing," 10th ESICUP Meeting, April 2013 (Lille, France) 

S. Sakai, S. Imahori: "An Improved Method for the Escherization Problem," WAAC 2012, July 2012 (Tokyo, Japan) 

S. Imahori: "Balanced Round-Robin Tournament with Court Shortage," IFORS 2011, July 2011 (Melbourne, Australia) 

H. Kawashima, Y. Tanaka, S. Imahori, M. Yagiura: "Two Efficient Construction Algorithms for the Three-Dimensional Strip Packing Problem," 8th ESICUP Meeting, May 2011 (Copenhagen, Denmark) 

S. Imahori, Y. Chien, Y. Tanaka, M. Yagiura: "An Efficient Algorithm for Enumerating Bottom-Left Stable Positions and Its Applications," EURO 2010, July 2010 (Lisbon, Portugal) 

J. Cardinal, E. Demaine, M. Demaine, S. Imahori, S. Langerman, R. Uehara: "Algorithmic Folding Complexity," JCCGG 2009, November 2009 (Kanazawa, Japan) 

G. Aloupis, J. Cardinal, S. Collette, S. Imahori, M. Korman, S. Langerman, O. Schwartz, S. Smorodinsky, P. Taslakian: "Colorful Strips," JCCGG 2009, November 2009 (Kanazawa, Japan) 

D. Yamaguchi, S. Imahori, R. Miyashiro, T. Matsui: "An Improved Approximation Algorithm for the Traveling Tournament Problem," WAAC 2009, July 2009 (Seoul, Korea) 

S. Imahori, M. Yagiura: "New Implementation of the Best-Fit Heuristic for Rectangle Packing and Tight Analysis on Approximation Ratio," 6th ESICUP Meeting, March 2009 (Valencia, Spain) 

S. Imahori, M. Yagiura: "Improved Best-Fit Heuristics for Rectangular Strip Packing and Bin Packing Problems," International Symposium on Combinatorial Optimization 2008, March 2008 (Coventry, UK) 

S. Imahori, M. Kushiya, T. Nakashima, K. Sugihara: "Generation of Cutter Paths for Hard Material," The First Hanyang-Tokyo Geometric Workshop, November 2007 (Seoul, Korea) 

S. Imahori, M. Yagiura: "Theoretical and Experimental Comparisons of Heuristic Algorithms for Rectangle Packing Problems," 4th ESICUP Meeting, March 2007 (Tokyo, Japan) 

S. Imahori, M. Yagiura: "Bottom Left Heuristics for Strip Packing Problem," Dagstuhl Seminar 07112 (Cutting, Packing, Layout and Space Allocation), March 2007 (Dagstuhl, Germany) 

S. Imahori, M. Kushiya, T. Nakashima, K. Sugihara: "Cutter-Path Generation for Hard Material," INFORMS 2006, June 2006 (Hong Kong, China) 

S. Imahori, N. Fujiwara, T. Matsui, R. Miyashiro: "The Traveling Tournament Problem with a Constant Distance Matrix," INFORMS 2006, June 2006 (Hong Kong, China) 

S. Imahori, M. Yagiura, T. Ibaraki: "An Effective Local Search Algorithm for Strip Packing Problem," IFORS 2005, July 2005 (Honolulu, USA) 

S. Imahori: "Rectangle Packing: How to Represent Solutions," ESICUP 2nd meeting, April 2005 (Southampton, UK) 

T. Ibaraki, S. Imahori, K. Nonobe, K. Sobue, T. Uno, M. Yagiura: "An Iterated Local Search Algorithm for the Vehicle Routing Problem with Convex Time Penalty Functions," The 35th Conference of the Italian Association of Operations Research, September 2004 (Lecca, Italy) 

S. Imahori, M. Yagiura, S. Umetani, S. Adachi, T. Ibaraki: "Local Search Algorithms for Two Dimensional Cutting Stock Problem with a Given Number of Patterns," ESICUP 1st meeting, March 2004 (Wittenberg, Germany) 

S. Imahori, M. Yagiura, T. Ibaraki: "Improved Local Search Algorithms for the Rectangle Packing Problem with General Spatial Costs," EURO/INFORMS 2003, July 2003 (Istanbul, Turkey)