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» Commit processing in distributed real-time database systems
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SIGMOD
2010
ACM
249views Database» more  SIGMOD 2010»
15 years 6 months ago
Active knowledge: dynamically enriching RDF knowledge bases by web services
The proliferation of knowledge-sharing communities and the advances in information extraction have enabled the construction of large knowledge bases using the RDF data model to re...
Nicoleta Preda, Gjergji Kasneci, Fabian M. Suchane...
GIS
2008
ACM
16 years 2 months ago
The multi-rule partial sequenced route query
Trip planning search (TPS) represents an important class of queries in Geographic Information Systems (GIS). In many real-world applications, TPS requests are issued with a number...
Haiquan Chen, Wei-Shinn Ku, Min-Te Sun, Roger Zimm...
SIGMOD
2008
ACM
193views Database» more  SIGMOD 2008»
16 years 1 months ago
ARCube: supporting ranking aggregate queries in partially materialized data cubes
Supporting ranking queries in database systems has been a popular research topic recently. However, there is a lack of study on supporting ranking queries in data warehouses where...
Tianyi Wu, Dong Xin, Jiawei Han
PODS
2007
ACM
159views Database» more  PODS 2007»
16 years 1 months ago
Generalized hypertree decompositions: np-hardness and tractable variants
The generalized hypertree width GHW(H) of a hypergraph H is a measure of its cyclicity. Classes of conjunctive queries or constraint satisfaction problems whose associated hypergr...
Georg Gottlob, Thomas Schwentick, Zoltán Mi...
ICSM
2002
IEEE
15 years 6 months ago
Maintaining Software with a Security Perspective
Testing for software security is a lengthy, complex and costly process. Currently, security testing is done using penetration analysis and formal verification of security kernels....
Kanta Jiwnani, Marvin V. Zelkowitz