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On Enhancing Visual Query Building over KGs Using Query Logs

Klungre, Vidar Norstein; Soylu, Ahmet; Giese, Martin; Waaler, Arild; Kharlamov, Evgeny
Journal article, Peer reviewed
Accepted version
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URI
http://hdl.handle.net/11250/2579319
Date
2018
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  • Institutt for datateknologi og informatikk [3784]
  • Publikasjoner fra CRIStin - NTNU [19849]
Original version
Lecture Notes in Computer Science. 2018, 11341 77-85.   10.1007/978-3-030-04284-4_6
Abstract
Knowledge Graphs have recently gained a lot of attention and have been successfully applied in both academia and industry. Since KGs may be very large: they may contain millions of entities and triples relating them to each other, to classes, and assigning them data values, it is important to provide endusers with effective tools to explore information encapsulated in KGs. In this work we present a visual query system that allows users to explore KGs by intuitively constructing tree-shaped conjunctive queries. It is known that systems of this kind suffer from the problem of information overflow: when constructing a query the users have to iteratively choose from a potentially very long list of options, sich as, entities, classes, and data values, where each such choice corresponds to an extension of the query new filters. In order to address this problem we propose an approach to substantially reduce such lists with the help of ranking and by eliminating the so-called deadends, options that yield queries with no answers over a given KG.
Publisher
Springer Verlag
Journal
Lecture Notes in Computer Science

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