Top-k Keyword Search over Wikipedia-based RDF Knowledge Graphs

Hrag Yoghourdjian, Shady Elbassuoni, Mohamad Jaber, Hiba Arnaout

2017

Abstract

Effective keyword search over RDF knowledge graphs is still an ongoing endeavor. Most existing techniques have their own limitations in terms of the unit of retrieval, the type of queries supported or the basis on which the results are ranked. In this paper, we develop a novel retrieval model for general keyword queries over Wikipedia-based RDF knowledge graphs. Our model retrieves the top-k scored subgraphs for a given keyword query. To do this, we develop a scoring function for RDF subgraphs and then we deploy a graph searching algorithm that only retrieves the top-k scored subgraphs for the given query based on our scoring function. We evaluate our retrieval model and compare it to state-of-the-art approaches using YAGO, a large Wikipedia-based RDF knowledge graph.

Paper Citation

in Harvard Style

Yoghourdjian H., Elbassuoni S., Jaber M. and Arnaout H. (2017). Top-k Keyword Search over Wikipedia-based RDF Knowledge Graphs.In Proceedings of the 9th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management - Volume 1: KDIR, ISBN 978-989-758-271-4, pages 17-26. DOI: 10.5220/0006411400170026

in Bibtex Style

@conference{kdir17,
author={Hrag Yoghourdjian and Shady Elbassuoni and Mohamad Jaber and Hiba Arnaout},
title={Top-k Keyword Search over Wikipedia-based RDF Knowledge Graphs},
booktitle={Proceedings of the 9th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management - Volume 1: KDIR,},
year={2017},
pages={17-26},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006411400170026},
isbn={978-989-758-271-4},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 9th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management - Volume 1: KDIR,
TI - Top-k Keyword Search over Wikipedia-based RDF Knowledge Graphs
SN - 978-989-758-271-4
AU - Yoghourdjian H.
AU - Elbassuoni S.
AU - Jaber M.
AU - Arnaout H.
PY - 2017
SP - 17
EP - 26
DO - 10.5220/0006411400170026