279 search results - page 52 / 56 » Tree Pattern Rewriting Systems |
ICDT
2010
ACM
13 years 10 months ago
2010
ACM
When a query is evaluated under bag semantics, each answer is returned as many times as it has derivations. Bag semantics has long been recognized as important, especially when ag...
CEAS
2008
Springer
13 years 10 months ago
2008
Springer
This paper presents a methodology for the characterization of spamming strategies based on the identification of spam campaigns. To deeply understand how spammers abuse network re...
EVOW
2008
Springer
13 years 10 months ago
2008
Springer
Classifier fusion strategies have shown great potential to enhance the performance of pattern recognition systems. There is an agreement among researchers in classifier combination...
DICTA
2003
13 years 9 months ago
2003
For content-based image retrieval techniques, query image is used to pick up and rank some relevant images from a database using some certain similarity metric. If semantic feature...
PR
2008
13 years 8 months ago
2008
Given the pervasive nature of malicious mobile code (viruses, worms, etc.), developing statistical/structural models of code execution is of considerable importance. We investigat...