FLOPS
2008
Springer
13 years 5 months ago
2008
Springer
In this paper, we present an extension of the scheme HH(C) (Hereditary Harrop formulas with Constraints) with a suitable formulation of negation in order to obtain a constraint ded...
INEX
2004
Springer
13 years 9 months ago
2004
Springer
Abstract. Can a system designed primarily for the purpose of databasetype storage and retrieval be used for information-retrieval tasks? This was one of the questions that led us t...
ICDT
2005
ACM
13 years 10 months ago
2005
ACM
The existence of a language expressing precisely the PTIME queries on arbitrary structures remains the central open problem in the theory of database query languages. As it turns o...
OOPSLA
2007
Springer
13 years 10 months ago
2007
Springer
Current real-world software applications typically involve heavy use of relational and XML data and their query languages. Unfortunately object-oriented languages and database que...
SIGMOD
2005
ACM
14 years 4 months ago
2005
ACM
Database query languages can be intimidating to the nonexpert, leading to the immense recent popularity for keyword based search in spite of its significant limitations. The holy ...