An experimental study of context-free path query evaluation methods

Jochem Kuijpers, George Fletcher, Nikolay Yakovets, Tobias Lindaaker

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Abstract

Context-free path queries extend regular path queries for increased expressiveness. A context-free grammar is used to recognize accepted paths by their label strings, or traces. Such queries arise naturally in graph analytics, e.g., in bioinformatics applications. Currently, the practical performance of methods for context-free path query evaluation is not well understood. In this work, we study three state of the art context-free path query evaluation methods. We measure the performance of these methods on diverse query workloads on various data sets and compare their results. We showcase how these evaluation methods scale as graphs get bigger and queries become larger or more ambiguous. We conclude that state of the art solutions are not able to cope with large graphs as found in practice.

Original languageEnglish
Title of host publicationProceedings of the 31st International Conference on Scientific and Statistical Database Management, SSDBM 2019
EditorsTanu Malik, Carlos Maltzahn, Ivo Jimenez
Place of PublicationNew York
PublisherAssociation for Computing Machinery, Inc
Pages121-132
Number of pages12
ISBN (Electronic)9781450362160
DOIs
Publication statusPublished - 23 Jul 2019
Event31st International Conference on Scientific and Statistical Database Management, SSDBM 2019 - Santa Cruz, United States
Duration: 23 Jul 201925 Jul 2019

Conference

Conference31st International Conference on Scientific and Statistical Database Management, SSDBM 2019
CountryUnited States
CitySanta Cruz
Period23/07/1925/07/19

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Kuijpers, J., Fletcher, G., Yakovets, N., & Lindaaker, T. (2019). An experimental study of context-free path query evaluation methods. In T. Malik, C. Maltzahn, & I. Jimenez (Eds.), Proceedings of the 31st International Conference on Scientific and Statistical Database Management, SSDBM 2019 (pp. 121-132). New York: Association for Computing Machinery, Inc. https://doi.org/10.1145/3335783.3335791