Paper Info
Title
DATR Theories and DATR Models
Abstract
Evans and Gazdar (Evans and Gazdar, 1989a; Evans and Gazdar, 1989b) introduced DATR as a simple, non-monotonic language for representing natural language lexicons. Although a number of implementations of DATR exist, the full language has until now lacked an explicit, declarative semantics. This paper rectifies the situation by providing a mathematical semantics for DATR. We present a view of DATR as a language for defining certain kins of partial functions by cases. The formal model provides a transparent treatment of DATR's notion of global context. It is shown that DATR's default mechanism can be accounted for by interpreting value descriptors as families of values indexed by paths.
Year
DOI
Venue
1995
10.3115/981658.981666
ACL
Keywords
Field
DocType
natural language lexicon,partial function,global context,full language,datr theory,datr model,default mechanism,mathematical semantics,non-monotonic language,formal model,declarative semantics,certain kin,indexation,natural language
Programming language,Computer science,Denotational semantics,DATR,Natural language,Natural language processing,Artificial intelligence,Partial function,Semantics
Conference
Volume
Citations 
PageRank 
cmp-lg/950
4
0.54
References 
Authors
12
1
Name
Order
Citations
PageRank
Bill Keller1876.26