Explanations for ontology-mediated query answers
<p>Ontology-mediated query answering is a paradigm that seeks to exploit the semantic knowledge expressed in terms of ontologies to improve query answers over incomplete data sources. In this thesis, we consider explanations for ontology-mediated query answers under the classical semantics. W...
| Հիմնական հեղինակ: | |
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| Այլ հեղինակներ: | |
| Ձևաչափ: | Թեզիս |
| Լեզու: | English |
| Հրապարակվել է: |
2020
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| Խորագրեր: |
| Ամփոփում: | <p>Ontology-mediated query answering is a paradigm that seeks to exploit the semantic knowledge expressed in terms of ontologies to improve query answers over incomplete data sources. In this thesis, we consider explanations for ontology-mediated query answers under the classical semantics. We provide a comprehensive complexity analysis of a wide range of computational problems, associated with explaining ontology-mediated query answers. We study explanations both for positive and negative ontology-mediated query answers under different minimality criteria, both for existential rules and description logics. This allows us to indicate similarities and point out differences in the complexity of explaining ontology-mediated query answers for these different settings.</p> |
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