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DASFAA
2008
IEEE
168views Database» more  DASFAA 2008»
15 years 8 months ago
SemanticTwig: A Semantic Approach to Optimize XML Query Processing
Twig pattern matching (TPM) is the core operation of XML query processing. Existing approaches rely on either efficient data structures or novel labeling/indexing schemes to reduce...
Zhifeng Bao, Tok Wang Ling, Jiaheng Lu, Bo Chen
225
Voted
SIGMOD
2011
ACM
442views Database» more  SIGMOD 2011»
14 years 5 months ago
ArrayStore: a storage manager for complex parallel array processing
We present the design, implementation, and evaluation of ArrayStore, a new storage manager for complex, parallel array processing. ArrayStore builds on prior work in the area of m...
Emad Soroush, Magdalena Balazinska, Daniel L. Wang
WWW
2011
ACM
14 years 9 months ago
Rewriting queries on SPARQL views
The problem of answering SPARQL queries over virtual SPARQL views is commonly encountered in a number of settings, including while enforcing security policies to access RDF data, ...
Wangchao Le, Songyun Duan, Anastasios Kementsietsi...
IEEESCC
2005
IEEE
15 years 7 months ago
A Service Discovery Framework for Service Centric Systems
An important aspect of service-centric systems (i.e. systems composed of services) is the ability to support service discovery at run-time in order to cope with unavailable or mal...
George Spanoudakis, Andrea Zisman, Alexander Kozle...
VLDB
2007
ACM
147views Database» more  VLDB 2007»
16 years 2 months ago
A General Framework for Modeling and Processing Optimization Queries
An optimization query asks for one or more data objects that maximize or minimize some function over the data set. We propose a general class of queries, model-based optimization ...
Michael Gibas, Ning Zheng, Hakan Ferhatosmanoglu