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PODS
2000
ACM
137views Database» more  PODS 2000»
13 years 10 months ago
Query Containment for Data Integration Systems
The problem of query containment is fundamental to many aspects of database systems, including query optimization, determining independence of queries from updates, and rewriting ...
Todd D. Millstein, Alon Y. Levy, Marc Friedman
VLDB
1997
ACM
94views Database» more  VLDB 1997»
13 years 10 months ago
Describing and Using Query Capabilities of Heterogeneous Sources
Information integration systems have to cope with the different and limited query interfaces of the underlying information sources. First, the integration systems need description...
Vasilis Vassalos, Yannis Papakonstantinou
AAAI
2007
13 years 8 months ago
Answering Regular Path Queries in Expressive Description Logics: An Automata-Theoretic Approach
Expressive Description Logics (DLs) have been advocated as formalisms for modeling the domain of interest in various application areas. An important requirement is the ability to ...
Diego Calvanese, Thomas Eiter, Magdalena Ortiz
KRDB
2003
184views Database» more  KRDB 2003»
13 years 7 months ago
Some Practical Issues in Building a Hybrid Deductive Geographic Information System with a DL Component
We report about some preliminary issues from the DFG project “Description Logics and Spatial Reasoning” (“DLS”, DFG Grant NE 279/8-1), one of whose goals is to develop a p...
Michael Wessel
POPL
2011
ACM
12 years 9 months ago
Decidable logics combining heap structures and data
We define a new logic, STRAND, that allows reasoning with heapmanipulating programs using deductive verification and SMT solvers. STRAND logic (“STRucture ANd Data” logic) f...
P. Madhusudan, Gennaro Parlato, Xiaokang Qiu