Authors
Jakob Bossek, Pascal Kerschke, Heike Trautmann
Publication date
2020/7/19
Conference
2020 IEEE Congress on Evolutionary Computation (CEC)
Pages
1-8
Publisher
IEEE
Description
The Traveling-Salesperson-Problem (TSP) is arguably one of the best-known NP-hard combinatorial optimization problems. The two sophisticated heuristic solvers LKH and EAX and respective (restart) variants manage to calculate close-to optimal or even optimal solutions, also for large instances with several thousand nodes in reasonable time. In this work we extend existing benchmarking studies by addressing anytime behaviour of inexact TSP solvers based on empirical runtime distributions leading to an increased understanding of solver behaviour and the respective relation to problem hardness. It turns out that performance ranking of solvers is highly dependent on the focused approximation quality. Insights on intersection points of performances offer huge potential for the construction of hybridized solvers depending on instance features. Moreover, instance features tailored to anytime performance and …
Total citations
2020202120222023111
Scholar articles
J Bossek, P Kerschke, H Trautmann - 2020 IEEE Congress on Evolutionary Computation …, 2020