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Frontiers and Exact Learning of ELI Queries under DL-Lite Ontologies

2022-04-29 15:56:45
Maurice Funk, Jean Christoph Jung, Carsten Lutz
arXiv_AI
   
Abstract

We study ELI queries (ELIQs) in the presence of ontologies formulated in the description logic DL-Lite. For the dialect DL-LiteH, we show that ELIQs have a frontier (set of least general generalizations) that is of polynomial size and can be computed in polynomial time. In the dialect DL-LiteF, in contrast, frontiers may be infinite. We identify a natural syntactic restriction that enables the same positive results as for DL-LiteH. We use out results on frontiers to show that ELIQs are learnable in polynomial time in the presence of a DL-LiteH / restricted DL-LiteF ontology in Angluin's framework of exact learning with only membership queries.

Abstract (translated)

URL

https://arxiv.org/abs/2204.14172

PDF

https://arxiv.org/pdf/2204.14172.pdf

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