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DAM
2008
114views more  DAM 2008»
13 years 6 months ago
Efficient solutions to the braid isotopy problem
We describe the most efficient solutions to the word problem of Artin's braid group known so far, i.e., in other words, the most efficient solutions to the braid isotopy probl...
Patrick Dehornoy
ATMOS
2010
128views Optimization» more  ATMOS 2010»
13 years 5 months ago
Robust Train Routing and Online Re-scheduling
Train Routing is a problem that arises in the early phase of the passenger railway planning process, usually several months before operating the trains. The main goal is to assign...
Alberto Caprara, Laura Galli, Leo G. Kroon, G&aacu...
CIIT
2007
133views Communications» more  CIIT 2007»
13 years 7 months ago
A cross-platform solution for bibliographic record manipulation in digital libraries
We investigate the problem of a collaborative digital library collection that allows librarians and non-librarians alike to share information on specific topics through MARC reco...
Wendy Osborn, D. Kaur, K. Crewdson, I. Dew
NIPS
1998
13 years 7 months ago
Using Analytic QP and Sparseness to Speed Training of Support Vector Machines
Training a Support Vector Machine (SVM) requires the solution of a very large quadratic programming (QP) problem. This paper proposes an algorithm for training SVMs: Sequential Mi...
John C. Platt
4OR
2008
96views more  4OR 2008»
13 years 6 months ago
A column generation approach to train timetabling on a corridor
We propose heuristic and exact algorithms for the (periodic and non-periodic) train timetabling problem on a corridor that are based on the solution of the LP relaxation of an ILP...
Valentina Cacchiani, Alberto Caprara, Paolo Toth