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CIKM
2007
Springer
14 years 1 months ago
Sigma encoded inverted files
Compression of term frequency lists and very long document-id lists within an inverted file search engine are examined. Several compression schemes are compared including Elias γ...
Andrew Trotman, Vikram Subramanya
PAMI
2012
11 years 10 months ago
Task-Driven Dictionary Learning
—Modeling data with linear combinations of a few elements from a learned dictionary has been the focus of much recent research in machine learning, neuroscience, and signal proce...
Julien Mairal, Francis Bach, Jean Ponce
ICPR
2006
IEEE
14 years 8 months ago
CAPTCHA Challenge Tradeoffs: Familiarity of Strings versus Degradation of Images
It is a well documented fact that, for human readers, familiar text is more legible than unfamiliar text. Current-generation computer vision systems also are able to exploit some ...
Jon Louis Bentley, Sui-Yu Wang
IPPS
2009
IEEE
14 years 2 months ago
Input-independent, scalable and fast string matching on the Cray XMT
String searching is at the core of many security and network applications like search engines, intrusion detection systems, virus scanners and spam filters. The growing size of o...
Oreste Villa, Daniel G. Chavarría-Miranda, ...
ICIP
2009
IEEE
14 years 8 months ago
Weighted Average Denoising With Sparse Orthonormal Transforms
Sparse Orthonormal Transforms (SOT) has recently been proposed as a data compression method that can achieve sparser representations in transform domain. Given initial conditions,...