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» Querying Communities in Relational Databases
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188
Voted
ICDE
2002
IEEE
130views Database» more  ICDE 2002»
16 years 1 months ago
Structural Joins: A Primitive for Efficient XML Query Pattern Matching
XML queries typically specify patterns of selection predicates on multiple elements that have some specified tree structured relationships. The primitive tree structured relations...
Shurug Al-Khalifa, H. V. Jagadish, Jignesh M. Pate...
SIGMOD
2010
ACM
187views Database» more  SIGMOD 2010»
15 years 4 months ago
PIQL: a performance insightful query language
Large-scale websites are increasingly moving from relational databases to distributed key-value stores for high request rate, low latency workloads. Often this move is motivated n...
Michael Armbrust, Stephen Tu, Armando Fox, Michael...
GIS
2008
ACM
15 years 22 days ago
Snapshot location-based query processing on moving objects in road networks
Location-based services are increasingly popular and it is a key challenge to efficiently support query processing. We present a novel design to process large numbers of location...
Haojun Wang, Roger Zimmermann
103
Voted
SIGMOD
1996
ACM
120views Database» more  SIGMOD 1996»
15 years 3 months ago
Query Execution Techniques for Caching Expensive Methods
Object-Relational and Object-Oriented DBMSs allow users to invoke time-consuming ("expensive") methods in their queries. When queries containing these expensive methods a...
Joseph M. Hellerstein, Jeffrey F. Naughton
89
Voted
ICDE
2010
IEEE
271views Database» more  ICDE 2010»
15 years 11 months ago
Preference Queries in Large Multi-Cost Transportation Networks
Research on spatial network databases has so far considered that there is a single cost value associated with each road segment of the network. In most real-world situations, howev...
Kyriakos Mouratidis, Yimin Lin, Man Lung Yiu