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CIDR
2007
165views Algorithms» more  CIDR 2007»
13 years 11 months ago
A Black-Box Approach to Query Cardinality Estimation
We present a “black-box” approach to estimating query cardinality that has no knowledge of query execution plans and data distribution, yet provides accurate estimates. It doe...
Tanu Malik, Randal C. Burns, Nitesh V. Chawla
ICDE
2007
IEEE
119views Database» more  ICDE 2007»
14 years 11 months ago
eXrQuy: Order Indifference in XQuery
There are more spots than immediately obvious in XQuery expressions where order is immaterial for evaluation-this affects most notably, but not exclusively, expressions in the sco...
Torsten Grust, Jan Rittinger, Jens Teubner
PODS
2006
ACM
121views Database» more  PODS 2006»
14 years 10 months ago
On the efficiency of checking perfect privacy
Privacy-preserving query-answering systems answer queries while provably guaranteeing that sensitive information is kept secret. One very attractive notion of privacy is perfect p...
Ashwin Machanavajjhala, Johannes Gehrke
ADBIS
2000
Springer
97views Database» more  ADBIS 2000»
14 years 2 months ago
An Efficient Storage Manager
When dealing with large quantities of clauses, the use of persistent knowledge is inevitable, and indexing methods are essential to answer queries efficiently. We introduce PerKMan...
Dimitris G. Kapopoulos, Michael Hatzopoulos, Panag...
PAMI
2007
187views more  PAMI 2007»
13 years 9 months ago
Supervised Learning of Semantic Classes for Image Annotation and Retrieval
—A probabilistic formulation for semantic image annotation and retrieval is proposed. Annotation and retrieval are posed as classification problems where each class is defined as...
Gustavo Carneiro, Antoni B. Chan, Pedro J. Moreno,...