644 search results - page 65 / 129 » Geometry-aware metric learning |
EDM
2010
13 years 10 months ago
2010
This paper describes methods for collecting user activity data in a peer production educational system, the Instructional Architect (IA), and then takes a social network perspectiv...
IFIP12
2008
13 years 10 months ago
2008
Sampling methods are a direct approach to tackle the problem of class imbalance. These methods sample a data set in order to alter the class distributions. Usually these methods ar...
ICDM
2003
IEEE
14 years 2 months ago
2003
IEEE
Machine learning techniques for data extraction from semistructured sources exhibit different precision and recall characteristics. However to date the formal relationship between...
KDD
2010
ACM
13 years 7 months ago
2010
ACM
The dynamic marketplace in online advertising calls for ranking systems that are optimized to consistently promote and capitalize better performing ads. The streaming nature of on...
ICAS
2009
IEEE
14 years 3 months ago
2009
IEEE
Abstract—Traditionally, performance has been the most important metrics when evaluating a system. However, in the last decades industry and academia have been paying increasing a...