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» On the Efficiency of Provenance Queries
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ICDE
2002
IEEE
128views Database» more  ICDE 2002»
14 years 10 months ago
Efficiently Ordering Query Plans for Data Integration
The goal of a data integration system is to provide a uniform interface to a multitude of data sources. Given a user query formulated in this interface, the system translates it i...
AnHai Doan, Alon Y. Halevy
AAECC
2009
Springer
110views Algorithms» more  AAECC 2009»
14 years 16 days ago
Novel Efficient Certificateless Aggregate Signatures
We propose a new efficient certificateless aggregate signature scheme which has the advantages of both aggregate signatures and certificateless cryptography. The scheme is proven e...
Lei Zhang, Bo Qin, Qianhong Wu, Futai Zhang
SIGMOD
2008
ACM
126views Database» more  SIGMOD 2008»
14 years 8 months ago
On efficient top-k query processing in highly distributed environments
Lately the advances in centralized database management systems show a trend towards supporting rank-aware query operators, like top-k, that enable users to retrieve only the most ...
Akrivi Vlachou, Christos Doulkeridis, Kjetil N&osl...
ICSNC
2007
IEEE
14 years 2 months ago
Efficient Transformation Scheme for Indexing Continuous Queries on RFID Streaming Data
RFID data are usually regarded as streaming data that are huge and change frequently because they are gathered continuously by numerous readers. RFID middleware filters the data a...
Jaekwan Park, Bonghee Hong, ChaeHoon Ban
ICML
1997
IEEE
14 years 2 days ago
Efficient Feature Selection in Conceptual Clustering
Feature selection has proven to be a valuable technique in supervised learning for improving predictive accuracy while reducing the number of attributes considered in a task. We i...
Mark Devaney, Ashwin Ram