Counting-Based Search for Constraint Optimization Problems

Authors: Gilles Pesant

AAAI 2016 | Conference PDF | Archive PDF | Plain Text | LLM Run Details

Reproducibility Variable Result LLM Response
Research Type Experimental This section presents an empirical evaluation of the search guidance efficiency of a branching heuristic built from our cost-based solution densities on three benchmark problems, one for each of the optimization constraints considered in the previous section.
Researcher Affiliation Academia Gilles Pesant Ecole Polytechnique de Montr eal, Montreal, Canada CIRRELT, Universit e de Montr eal, Montreal, Canada gilles.pesant@polymtl.ca
Pseudocode Yes Algorithm 1 describes how we compute cost-based solution densities from them.
Open Source Code No The paper does not provide concrete access to source code for the methodology described.
Open Datasets Yes Balanced Academic Curriculum Problem (BACP, problem 30 of the CSPlib) ... 21 small symmetric and asymmetric instances from TSPlib ... 20 instances from (Bofill et al. 2015)
Dataset Splits No The paper does not provide specific dataset split information (exact percentages, sample counts, or detailed splitting methodology) needed to reproduce the data partitioning into train/validation/test sets.
Hardware Specification Yes All experiments were run on Dual core AMD 2.1 GHz processors with 8 GB of RAM
Software Dependencies Yes using IBM ILOG Solver 6.7 as the CP solver
Experiment Setup Yes Each experiment uses depth-first search and compares max SD (with ϵ = 0.1) to standard generic branching heuristics, namely smallest-domain first with lexicographic value selection (dom) and the solver s default impact-based search (IBS), and to some tailored heuristic when applicable. ... each instance was given a two-hour time limit.