Journal
KNOWLEDGE-BASED SYSTEMS
Volume 238, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.knosys.2021.107975
Keywords
Knowledge Graph; RDF; ShEx; SHACL; Automatic extraction
Categories
Funding
- Severo Ochoa Research Program [BP17-88]
Ask authors/readers for more resources
This paper introduces sheXer, a system that extracts shapes by mining the graph structure. sheXer is offered as a free Python library capable of producing both ShEx and SHACL content. Compared to other automatic shape extractors, sheXer includes some novel features such as shape inter-linkage and computation of big real-world datasets. The features and limitations of sheXer are analyzed with different experiments using the English chapter of DBpedia.
There is an increasing number of projects based on Knowledge Graphs and SPARQL endpoints. These SPARQL endpoints are later queried by final users or used to feed many different kinds of applications. Shape languages, such as ShEx and SHACL, have emerged to guide the evolution of these graphs and to validate their expected topology. However, authoring shapes for an existing knowledge graph is a time-consuming task. The task gets more challenging when dealing with sources, possibly maintained by heterogeneous agents. In this paper, we present sheXer, a system that extracts shapes by mining the graph structure. We offer sheXer as a free Python library capable of producing both ShEx and SHACL content. Compared to other automatic shape extractors, sheXer includes some novel features such as shape inter-linkage and computation of big real-world datasets. We analyze the features and limitations w.r.t. performance with different experiments using the English chapter of DBpedia.& nbsp;(c) 2021 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available