Book ChapterDOI
Inconsistency-tolerant semantics for description logics
Domenico Lembo,Maurizio Lenzerini,Riccardo Rosati,Marco Ruzzi,Domenico Fabio Savo +4 more
- pp 103-117
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TLDR
It is shown that, if the notion of repair studied in databases is used, inconsistency-tolerant query answering is intractable, even for the simplest form of queries.Abstract:
We address the problem of dealing with inconsistencies in Description Logic (DL) knowledge bases. Our general goal is both to study DL semantical frameworks which are inconsistency-tolerant, and to devise techniques for answering unions of conjunctive queries posed to DL knowledge bases under such inconsistency-tolerant semantics. Our work is inspired by the approaches to consistent query answering in databases, which are based on the idea of living with inconsistencies in the database, but trying to obtain only consistent information during query answering, by relying on the notion of database repair. We show that, if we use the notion of repair studied in databases, inconsistency-tolerant query answering is intractable, even for the simplest form of queries. Therefore, we study different variants of the repair-based semantics, with the goal of reaching a good compromise between expressive power of the semantics and computational complexity of inconsistency-tolerant query answering.read more
Citations
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Influence factors for local comprehensibility of process models
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Database Repairs and Consistent Query Answering: Origins and Further Developments
TL;DR: The main concepts around database repairs and consistent query answering are reviewed, with emphasis on tracing back the origin, motivation, and early developments.
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Agile requirements engineering via paraconsistent reasoning
TL;DR: In this paper, the authors propose a framework, RE-KOMBINE, which is based on a propositional language for requirements modeling called Techne, and define operations on Techne models which tolerate the presence of inconsistencies.
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On the Potential Integration of an Ontology-Based Data Access Approach in NoSQL Stores
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References
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BookDOI
The Description Logic Handbook: Theory, Implementation and Applications
TL;DR: The Description Logic Handbook as mentioned in this paper provides a thorough account of the subject, covering all aspects of research in this field, namely: theory, implementation, and applications, and can also be used for self-study or as a reference for knowledge representation and artificial intelligence courses.
Journal ArticleDOI
Tractable Reasoning and Efficient Query Answering in Description Logics: The DL-Lite Family
TL;DR: It is shown that, for the DLs of the DL-Lite family, the usual DL reasoning tasks are polynomial in the size of the TBox, and query answering is LogSpace in thesize of the ABox, which is the first result ofPolynomial-time data complexity for query answering over DL knowledge bases.
Book ChapterDOI
Linking data to ontologies
Antonella Poggi,Domenico Lembo,Diego Calvanese,Giuseppe De Giacomo,Maurizio Lenzerini,Riccardo Rosati +5 more
TL;DR: This paper presents a new ontology language, based on Description Logics, that is particularly suited to reason with large amounts of instances and a novel mapping language that is able to deal with the so-called impedance mismatch problem.
Book
The Semantic Web - ISWC 2005: 4th International Semantic Web Conference, ISWC 2005, Galway, Ireland, November 6 - 10, 2005, Proceedings (Lecture Notes in Computer Science)
TL;DR: Semantic Acceleration Helping Realize the Semantic Web Vision or "The Practical Web", research/Academic track.
BookDOI
The Semantic Web – ISWC 2005
TL;DR: In this paper, the authors present an approach for using the Semantic Web for e-Science: Inspiration, Incubation, Irritation, and Semantic Acceleration Helping Realize the semantic Web Vision or "The Practical Web".