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» Efficient set joins on similarity predicates
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VLDB
2007
ACM
169views Database» more  VLDB 2007»
14 years 5 months ago
Peer-to-Peer Similarity Search in Metric Spaces
This paper addresses the efficient processing of similarity queries in metric spaces, where data is horizontally distributed across a P2P network. The proposed approach does not r...
Christos Doulkeridis, Akrivi Vlachou, Yannis Kotid...
SIGMOD
2006
ACM
150views Database» more  SIGMOD 2006»
14 years 5 months ago
On-the-fly sharing for streamed aggregation
Data streaming systems are becoming essential for monitoring applications such as financial analysis and network intrusion detection. These systems often have to process many simi...
Sailesh Krishnamurthy, Chung Wu, Michael J. Frankl...
KDID
2004
481views Database» more  KDID 2004»
13 years 6 months ago
Models and Indices for Integrating Unstructured Data with a Relational Database
Abstract. Database systems are islands of structure in a sea of unstructured data sources. Several real-world applications now need to create bridges for smooth integration of semi...
Sunita Sarawagi
DMDW
2000
161views Management» more  DMDW 2000»
13 years 6 months ago
View materialization for nested GPSJ queries
View materialization is a central issue in logical design of data warehouses since it is one of the most powerful techniques to improve the response to the workload. Most approach...
Matteo Golfarelli, Stefano Rizzi
ICDE
2006
IEEE
119views Database» more  ICDE 2006»
14 years 6 months ago
Laws for Rewriting Queries Containing Division Operators
Relational division, also known as small divide, is a derived operator of the relational algebra that realizes a many-to-one set containment test, where a set is represented as a ...
Ralf Rantzau, Christoph Mangold