In description logics (DLs), concrete domains are used for defining concepts based on concrete qualities of their instances such as the weight, age, duration, and spatial extensio...
There are numerous applications such as air traffic management, cellular phone location tracking, and vehicle protection systems where there is a critical need to reason about mo...
The paper presents a prototype of a system for querying the Web in natural language (French) for a limited domain. The domain knowledge, represented in description logics (DL), is ...
We show how extensible records with structural subtyping can be represented directly in Higher-Order Logic (HOL). Exploiting some specific properties of HOL, this encoding turns o...
In this paper we give a formal description of the parsing model that underlies the treatment of Long Distance Dependencies, Topic and Focus, Ellipsis and Quantification in, amongs...