AdvOL Student Seminars and Defences
Joe Guan, January 23, 2018, 15:30-16:00, ITB 201
Speaker:   Joe Guan

Title:  Geometric Aspects of Combinatorial Optimization
 
AdvOL Optimization Seminars
Antoine Deza, January 23, 2018, 16:30-17:30, ITB 201
Speaker:   Antoine Deza
Department of Computing and Software
McMaster University

Title:  On lattice polytopes, convex matroid optimization, and degree sequences of hypergraphs
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Fields Institute Industrial Optimization Seminar, January 16, 2018
Speakers:   Paul Ayers (McMaster University)
Jeffrey Kelly (Industrial Algorithms)

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, 23 February 2018
 
 
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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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