Sciweavers

9683 search results - page 636 / 1937
» Predicting query performance
Sort
View
200
Voted
SIGMOD
2003
ACM
171views Database» more  SIGMOD 2003»
16 years 7 months ago
Adaptive Filters for Continuous Queries over Distributed Data Streams
We consider an environment where distributed data sources continuously stream updates to a centralized processor that monitors continuous queries over the distributed data. Signif...
Chris Olston, Jing Jiang, Jennifer Widom
SIGMOD
2002
ACM
196views Database» more  SIGMOD 2002»
16 years 7 months ago
Storing and querying ordered XML using a relational database system
XML is quickly becoming the de facto standard for data exchange over the Internet. This is creating a new set of data management requirements involving XML, such as the need to st...
Igor Tatarinov, Stratis Viglas, Kevin S. Beyer, Ja...
SIGMOD
2001
ACM
147views Database» more  SIGMOD 2001»
16 years 7 months ago
Optimizing Queries Using Materialized Views: A practical, scalable solution
Materialized views can provide massive improvements in query processing time, especially for aggregation queries over large tables. To realize this potential, the query optimizer ...
Jonathan Goldstein, Per-Åke Larson
213
Voted
PODS
2005
ACM
128views Database» more  PODS 2005»
16 years 7 months ago
Operator placement for in-network stream query processing
In sensor networks, data acquisition frequently takes place at lowcapability devices. The acquired data is then transmitted through a hierarchy of nodes having progressively incre...
Utkarsh Srivastava, Kamesh Munagala, Jennifer Wido...
EDBT
2006
ACM
172views Database» more  EDBT 2006»
16 years 7 months ago
Fast Query Point Movement Techniques with Relevance Feedback for Content-Based Image Retrieval
Abstract. Target search in content-based image retrieval (CBIR) systems refers to finding a specific (target) image such as a particular registered logo or a specific historical ph...
Danzhou Liu, Kien A. Hua, Khanh Vu, Ning Yu