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The dlvhex system for knowledge representation: recent advances (system description)*

Published online by Cambridge University Press:  14 October 2016

CHRISTOPH REDL
CHRISTOPH REDL*
Affiliation:
Institut für Informationssysteme, Technische Universität Wien, Favoritenstraße 9-11, A-1040 Vienna, Austria (e-mail: [email protected])
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Abstract

The dlvhex system implements the hex-semantics, which integrates answer set programming (ASP) with arbitrary external sources. Since its first release ten years ago, significant advancements were achieved. Most importantly, the exploitation of properties of external sources led to efficiency improvements and flexibility enhancements of the language, and technical improvements on the system side increased user's convenience. In this paper, we present the current status of the system and point out the most important recent enhancements over early versions. While existing literature focuses on theoretical aspects and specific components, a bird's eye view of the overall system is missing. In order to promote the system for real-world applications, we further present applications which were already successfully realized on top of dlvhex.

Keywords

Answer Set ProgrammingNonmonotonic ReasoningKnowledge representation
Type
Regular Papers
Information
Theory and Practice of Logic Programming , Volume 16 , Special Issue 5-6: 32nd International Conference on Logic Programming , September 2016 , pp. 866 - 883
Copyright
Copyright © Cambridge University Press 2016 

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Footnotes

*

This research has been supported by the Austrian Science Fund (FWF) project P27730.

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