A Tableaux-Based Method for Computing Least Common Subsumers for Expressive Description Logics
Abstract
Least Common Subsumers (LCS) have been proposed in Description Logics (DL) to capture the commonalities between two or more concepts. Since its introduction in 1992, LCS have been successfully employed as a logical tool for a variety of applications, spanning from inductive learning, to bottom-up construction of knowledge bases, information retrieval, to name a few. The best known algorithm for computing LCS uses structural comparison on normal forms, and the most expressive DL it is applied to is ALEN. We provide a general tableau-based calculus for computing LCS, via substitutions on concept terms containing concept variables. We show the applicability of our method to an expressive DL (but without disjunction and full negation), discuss complexity issues, and show the generality of our proposal. Francesco Maria Donini, Simona Colucci, Tommaso Di Noia, Eugenio Di Sciascio
Cite
Text
Donini et al. "A Tableaux-Based Method for Computing Least Common Subsumers for Expressive Description Logics." International Joint Conference on Artificial Intelligence, 2009.Markdown
[Donini et al. "A Tableaux-Based Method for Computing Least Common Subsumers for Expressive Description Logics." International Joint Conference on Artificial Intelligence, 2009.](https://mlanthology.org/ijcai/2009/donini2009ijcai-tableaux/)BibTeX
@inproceedings{donini2009ijcai-tableaux,
title = {{A Tableaux-Based Method for Computing Least Common Subsumers for Expressive Description Logics}},
author = {Donini, Francesco M. and Colucci, Simona and Di Noia, Tommaso and Di Sciascio, Eugenio},
booktitle = {International Joint Conference on Artificial Intelligence},
year = {2009},
pages = {739-745},
url = {https://mlanthology.org/ijcai/2009/donini2009ijcai-tableaux/}
}