by Wolfgang Fischl, Georg Gottlob, Davide Mario Longo, Reinhard Pichler
Abstract:
To cope with the intractability of answering Conjunctive Queries (CQs) and solving Constraint Satisfaction Problems (CSPs), several notions of hypergraph decompositions have been proposed—giving rise to different notions of width, noticeably, plain, generalized, and fractional hypertree width (hw, ghw, and fhw). Given the increasing interest in using such decomposition methods in practice, a publicly accessible repository of decomposition software, as well as a large set of benchmarks, and a web-accessible workbench for inserting, analyzing, and retrieving hypergraphs are called for.We address this need by providing (i) concrete implementations of hypergraph decompositions (including new practical algorithms), (ii) a new, comprehensive benchmark of hypergraphs stemming from disparate CQ and CSP collections, and (iii) HyperBench, our new web-interface for accessing the benchmark and the results of our analyses. In addition, we describe a number of actual experiments we carried out with this new infrastructure.
Reference:
HyperBench: A Benchmark and Tool for Hypergraphs and Empirical FindingsWolfgang Fischl, Georg Gottlob, Davide Mario Longo, Reinhard PichlerACM J. Exp. Algorithmics, volume 26, jul 2021, Association for Computing Machinery.
Bibtex Entry:
@article{10.1145/3440015,
author = {Fischl, Wolfgang and Gottlob, Georg and Longo, Davide Mario and Pichler, Reinhard},
title = {HyperBench: A Benchmark and Tool for Hypergraphs and Empirical Findings},
year = {2021},
issue_date = {December 2021},
publisher = {Association for Computing Machinery},
address = {New York, NY, USA},
volume = {26},
issn = {1084-6654},
url = {https://arxiv.org/pdf/2009.01769.pdf},
doi = {10.1145/3440015},
abstract = {To cope with the intractability of answering Conjunctive Queries (CQs) and solving Constraint Satisfaction Problems (CSPs), several notions of hypergraph decompositions have been proposed—giving rise to different notions of width, noticeably, plain, generalized, and fractional hypertree width (hw, ghw, and fhw). Given the increasing interest in using such decomposition methods in practice, a publicly accessible repository of decomposition software, as well as a large set of benchmarks, and a web-accessible workbench for inserting, analyzing, and retrieving hypergraphs are called for.We address this need by providing (i) concrete implementations of hypergraph decompositions (including new practical algorithms), (ii) a new, comprehensive benchmark of hypergraphs stemming from disparate CQ and CSP collections, and (iii) HyperBench, our new web-interface for accessing the benchmark and the results of our analyses. In addition, we describe a number of actual experiments we carried out with this new infrastructure.},
journal = {ACM J. Exp. Algorithmics},
month = {jul},
articleno = {1.6},
numpages = {40},
keywords = {query answering, Hypergraph decomposition methods, constraint satisfaction}
}