Visualization of Proofs in Defeasible Logic

Ioannis Avguleas, Katerina Gkirtzou, Sofia Triantafilou, Antonis Bikakis, Grigoris Antoniou, Efstratios Kontopoulos, Nick Bassiliades

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)


The development of the Semantic Web proceeds in steps, building each layer on top of the other. Currently, the focus of research efforts is concentrated on logic and proofs, both of which are essential, since they will allow systems to infer new knowledge by applying principles on the existing data and explain their actions. Research is shifting towards the study of non-monotonic systems that are capable of handling conflicts among rules and reasoning with partial information. As for the proof layer of the Semantic Web, it can play a vital role in increasing the reliability of Semantic Web systems, since it will be possible to provide explanations and/or justifications of the derived answers. This paper reports on the implementation of a system for visualizing proof explanations on the Semantic Web. The proposed system applies defeasible logic, a member of the non-monotonic logics family, as the underlying inference system. The proof representation schema is based on a graph-based methodology for visualizing defeasible logic rule bases.

Original languageEnglish
Title of host publicationRule Representation, Interchange and Reasoning on the Web
Subtitle of host publicationInternational Symposium, RuleML 2008, Orlando, FL, USA, October 30-31, 2008. Proceedings
EditorsNick Bassiliades, Guido Governatori, Adrian Paschke
Place of PublicationBerlin
PublisherSpringer Verlag
Number of pages14
VolumeLNCS 5321
ISBN (Electronic)9783540888086
ISBN (Print)3540888071, 9783540888079
Publication statusPublished - 8 Oct 2008
Externally publishedYes
EventInternational Symposium on Rule Representation, Interchange and Reasoning on the Web - Orlando, United States
Duration: 30 Oct 200831 Oct 2008

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
PublisherSpringer Verlag
Volume5321 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


ConferenceInternational Symposium on Rule Representation, Interchange and Reasoning on the Web
Abbreviated titleRuleML 2008
Country/TerritoryUnited States


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