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» Chase of Recursive Queries
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ICDT
2010
ACM
194views Database» more  ICDT 2010»
13 years 9 months ago
Bag Equivalence of XPath Queries
When a query is evaluated under bag semantics, each answer is returned as many times as it has derivations. Bag semantics has long been recognized as important, especially when ag...
Sara Cohen, Yaacov Y. Weiss
JODL
2000
114views more  JODL 2000»
13 years 7 months ago
Integrating ontologies and thesauri for RDF schema creation and metadata querying
In this paper we present a new approach for building metadata schemas by integrating existing ontologies and structured vocabularies (thesauri). This integration is based on the s...
Bernd Amann, Irini Fundulaki, Michel Scholl
NDSS
2009
IEEE
14 years 2 months ago
Recursive DNS Architectures and Vulnerability Implications
DNS implementers face numerous choices in architecting DNS resolvers, each with profound implications for security. Absent the use of DNSSEC, there are numerous interim techniques...
David Dagon, Manos Antonakakis, Kevin Day, Xiapu L...
ECOOP
2006
Springer
13 years 11 months ago
codeQuest:  Scalable Source Code Queries with Datalog
Abstract. Source code querying tools allow programmers to explore relations between different parts of the code base. This paper describes such a tool, named CodeQuest. It combines...
Elnar Hajiyev, Mathieu Verbaere, Oege de Moor
DEXA
1995
Springer
126views Database» more  DEXA 1995»
13 years 11 months ago
A Heuristic Approach for Optimization of Path Expressions
Abstract. The object-oriented database management systems store references to objects (implicit joins, precomputed joins), and use path expressions in query languages. One way of e...
Cetin Ozkan, Asuman Dogac, Cem Evrendilek