Abstract
This paper investigates an extension of lightweight ontologies, encoded here in DL-Lite languages , to the product-based possibility theory framework. We first introduce the language (and its associated semantics) used for representing uncertainty in lightweight ontologies. We show that, contrarily to a min-based possibilistic DL-Lite, query answering in a product-based possibility theory is a hard task. We provide equivalent transformations between the problem of computing an inconsistency degree (the key notion in reasoning from a possibilistic DL-Lite knowledge base) and the weighted maximum 2-Horn SAT problem.
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Acknowledgments
This work has been supported from the european project H2020 Marie Sklodowska-Curie Actions (MSCA) research and Innovation Staff Exchange (RISE): AniAge (High Dimensional Heterogeneous Data based Animation Techniques for Southeast Asian Intangible Cultural Heritage. This work has also been supported by the French National Research Agency ASPIQ project ANR-12-BS02-0003.
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Benferhat, S., Boutouhami, K., Khellaf, F., Nouioua, F. (2017). Representing Lightweight Ontologies in a Product-Based Possibility Theory Framework. In: Ferraro, M., et al. Soft Methods for Data Science. SMPS 2016. Advances in Intelligent Systems and Computing, vol 456. Springer, Cham. https://doi.org/10.1007/978-3-319-42972-4_6
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DOI: https://doi.org/10.1007/978-3-319-42972-4_6
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