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IANDC
2007
123views more  IANDC 2007»
13 years 4 months ago
Hardness of fully dense problems
In the past decade, there has been a stream of work in designing approximation schemes for dense instances of NP-Hard problems. These include the work of Arora, Karger and Karpins...
Nir Ailon, Noga Alon
HEURISTICS
2007
103views more  HEURISTICS 2007»
13 years 4 months ago
Distance measures based on the edit distance for permutation-type representations
In this paper, we develop and discuss several distance measures for permutation type representations of solutions of combinatorial optimisation problems. The problems discussed in...
Kenneth Sörensen
ESWA
2007
131views more  ESWA 2007»
13 years 4 months ago
Case-based selection of initialisation heuristics for metaheuristic examination timetabling
Examination timetabling problems are often solved by a two-phase procedure combining a sequential construction heuristic with a metaheuristic improvement search. There can be many...
Sanja Petrovic, Yong Yang, Moshe Dror
EOR
2007
198views more  EOR 2007»
13 years 4 months ago
Airline crew scheduling from planning to operations
Crew scheduling problems at the planning level are typically solved in two steps: first, creating working patterns, and then assigning these to individual crew. The first step is ...
Claude P. Medard, Nidhi Sawhney
EOR
2007
105views more  EOR 2007»
13 years 4 months ago
Newton's method and its use in optimization
Newton’s method is a basic tool in numerical analysis and numerous applications, including operations research and data mining. We survey the history of the method, its main ide...
Boris T. Polyak
JSS
2006
155views more  JSS 2006»
13 years 4 months ago
Semantic component networking: Toward the synergy of static reuse and dynamic clustering of resources in the knowledge grid
Model is a kind of codified knowledge that has been verified in solving problems. Solving a complex problem usually needs a set of models. Using components, the composition of a s...
Hai Zhuge
EOR
2007
103views more  EOR 2007»
13 years 4 months ago
Bi-criteria scheduling problems: Number of tardy jobs and maximum weighted tardiness
Consider a single machine and a set of   jobs that are available for processing at time 0. Job ¡ has a processing time ¢¤£ , a due date ¥¦£ and a weight §¨£ . We consid...
Yumei Huo, Joseph Y.-T. Leung, Hairong Zhao
JOT
2006
61views more  JOT 2006»
13 years 4 months ago
Patterns of Anti-Patterns
address (at least three) common problems, and the solution is then abstracted into a pattern. Antipatterns, on the other hand, identify common problems with solutions, and then sho...
Mahesh H. Dodani
JMLR
2006
125views more  JMLR 2006»
13 years 4 months ago
Linear Programming Relaxations and Belief Propagation - An Empirical Study
The problem of finding the most probable (MAP) configuration in graphical models comes up in a wide range of applications. In a general graphical model this problem is NP hard, bu...
Chen Yanover, Talya Meltzer, Yair Weiss
JUCS
2008
119views more  JUCS 2008»
13 years 4 months ago
A Standards-based Modelling Approach for Dynamic Generation of Adaptive Learning Scenarios
: One of the key problems in developing standard based adaptive courses is the complexity involved in the design phase, especially when establishing the hooks for the dynamic model...
Jesus Boticario, Olga C. Santos