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WCE
2007
14 years 10 months ago
An Intelligent Conversational Agent Approach to Extracting Queries from Natural Language
—This paper is concerned with the application of a conversational agent and expert system to provide a natural language interface to a database. Typically, natural language datab...
Karen Pudner, Keeley A. Crockett, Zuhair Bandar
ICDT
1995
ACM
79views Database» more  ICDT 1995»
15 years 1 months ago
Optimization Using Tuple Subsumption
A tuple t1 of relation R subsumes tuple t2 of R, with respect to a query Q if for every database, tuple t1 derives all, and possibly more, answers to query Q than derived by tuple ...
Venky Harinarayan, Ashish Gupta
IDEAS
2005
IEEE
93views Database» more  IDEAS 2005»
15 years 3 months ago
Semantic Query Transformation Using Ontologies
Traditional approaches to query processing aim at rewriting a given query into another more efficient one that uses less time and/or resources during the execution. There by, the...
Chokri Ben Necib, Johann Christoph Freytag
DGO
2003
139views Education» more  DGO 2003»
14 years 11 months ago
Better Public Policy Through Natural Language Information Access
Federal agencies implement laws passed by the Congress by creating rules and regulations that can be applied in practice. During this process, staffs at the various agencies may r...
Boris Katz, Roger Hurwitz, Jimmy J. Lin, Özle...
ADBIS
2004
Springer
224views Database» more  ADBIS 2004»
15 years 2 months ago
Using Ontologies for Database Query Reformulation
Abstract. Query reformulation techniques based on semantic knowledge have been used in two ways in database management systems, namely for query optimization and for data integrati...
Chokri Ben Necib, Johann Christoph Freytag