AdvOL Student Seminars and Defences
Asma Paracha, December 12, 2017, 15:30-16:00, ITB 201
Speaker:   Asma Paracha

Title:  Lyndon factors and periodicities in strings
 
AdvOL Optimization Seminars
Alexander Rosa, December 12, 2017, 16:30-17:30, ITB 201
Speaker:   Alexander Rosa
Department of Mathematics & Statistics
McMaster University

Title:  Reaction graphs of combinatorial configurations
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Fields Institute Industrial Optimization Seminar, November 14, 2017
Speakers:   Christopher Swartz (McMaster University)
Jesus Flores-Carrillo (Praxair)

On the first Tuesday of each month, the Industrial Optimization Seminar is held at the Fields Institute. See the seminar series website for further information.
 
Home arrow Seminars arrow Invited seminars arrow Noriyoshi Sukegawa, December 2, 2016, 15:00-16:00, ITB 201
Friday, 24 November 2017
 
 
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Noriyoshi Sukegawa, December 2, 2016, 15:00-16:00, ITB 201
Speaker:   Noriyoshi Sukegawa
Department of Information and System Engineering
Chuo University

Title:   Fractional programming formulation for the vertex coloring problem

We devise a new formulation for the vertex coloring problem. Different from other formulations, decision variables are associated with pairs of vertices. Consequently, colors will be distinguishable. Although the objective function is fractional, it can be replaced by a piece-wise linear convex function. Numerical experiments show that our formulation has significantly good performance for dense graphs. Based on join work with Tomomi Matsui and Atsushi Miyauchi.
 
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