1 research outputs found
Context and ontology in understanding of dialogs
We present a model of NLP in which ontology and context are directly included
in a grammar. The model is based on the concept of {\em construction},
consisting of a set of features of form, a set of semantic and pragmatic
conditions describing its application context, and a description of its
meaning. In this model ontology is embedded into the grammar; e.g. the
hierarchy of {\it np} constructions is based on the corresponding ontology.
Ontology is also used in defining contextual parameters; e.g. .
A parser based on this model allowed us to build a set of dialog
understanding systems that include an on-line calendar, a banking machine, and
an insurance quote system. The proposed approach is an alternative to the
standard "pipeline" design of morphology-syntax-semantics-pragmatics; the
account of meaning conforms to our intuitions about compositionality, but there
is no homomorphism from syntax to semantics.Comment: 7 pp. Latex (documentstyle[ijcai89,named]). Proc. IJCAI'95 Workshop
on Context in NLP. Montreal, Aug.1995. Correspondence to [email protected]