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Hybridizing Concept Languages

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons45645

Tzakova,  Miroslava
Programming Logics, MPI for Informatics, Max Planck Society;

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Zitation

Blackburn, P., & Tzakova, M. (1998). Hybridizing Concept Languages. Annals of Mathematics and Artificial Intelligence, 24(1/4), 23-49.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-3843-F
Zusammenfassung
This paper shows how to increase the expressivity of concept languages using a strategy called {\em hybridization}. Building on the well-known correspondences between modal and description logics, two {\em hybrid languages\/} are defined. These languages are called `hybrid' because, as well as the familiar propositional variables and modal operators, they also contain {\em variables across individuals\/} and a binder that {\em binds\/} these variables. As is shown, combining aspects of modal and first-order logic in this manner allows the expressivity of concept languages to be boosted in a natural way, making it possible to define number restrictions, collections of individuals, irreflexivity of roles, and TBox- and ABox-statements. Subsequent addition of the {\em universal modality\/} allows the notion of subsumption to be internalized, and enables the representation of queries to arbitrary first-order knowledge bases. The paper notes themes shared by the hybrid and concept language literatures, and draws attention to a little-known body of work by the late Arthur Prior.