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» The Limits of Querying Ontologies
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SIGMOD
1998
ACM
96views Database» more  SIGMOD 1998»
14 years 3 months ago
Wavelet-Based Histograms for Selectivity Estimation
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
Yossi Matias, Jeffrey Scott Vitter, Min Wang
CSE
2009
IEEE
14 years 2 months ago
An Efficient Privacy Preserving Keyword Search Scheme in Cloud Computing
A user stores his personal files in a cloud, and retrieves them wherever and whenever he wants. For the sake of protecting the user data privacy and the user queries privacy, a use...
Qin Liu, Guojun Wang, Jie Wu
ICDM
2007
IEEE
140views Data Mining» more  ICDM 2007»
14 years 2 months ago
Sequential Change Detection on Data Streams
Model-based declarative queries are becoming an attractive paradigm for interacting with many data stream applications. This has led to the development of techniques to accurately...
S. Muthukrishnan, Eric van den Berg, Yihua Wu
CIKM
2008
Springer
14 years 23 days ago
Tag data and personalized information retrieval
Researchers investigating personalization techniques for Web Information Retrieval face a challenge; that the data required to perform evaluations, namely query logs and clickthro...
Mark James Carman, Mark Baillie, Fabio Crestani
CASCON
2008
124views Education» more  CASCON 2008»
14 years 7 days ago
Synchronized tag clouds for exploring semi-structured clinical trial data
Searching and comparing information from semi-structured repositories is an important, but cognitively complex activity for internet users. The typical web interface displays a li...
Maria-Elena Hernandez, Sean M. Falconer, Margaret-...