507 search results - page 46 / 102 » Portfolio theory of information retrieval |
LOCWEB
2009
ACM
14 years 2 months ago
2009
ACM
Microsoft has proposed an identity metasystem to standardize identity services and the principles behind them. A location metasystem can support interoperation between location se...
WWW
2004
ACM
14 years 8 months ago
2004
ACM
A (directed) network of people connected by ratings or trust scores, and a model for propagating those trust scores, is a fundamental building block in many of today's most s...
SIGIR
2009
ACM
14 years 2 months ago
2009
ACM
Rank correlation statistics are useful for determining whether a there is a correspondence between two measurements, particularly when the measures themselves are of less interest...
SIGIR
2008
ACM
13 years 7 months ago
2008
ACM
Modeling the beyond-topical aspects of relevance are currently gaining popularity in IR evaluation. For example, the discounted cumulated gain (DCG) measure implicitly models some...
FOCS
2000
IEEE
14 years 3 days ago
2000
IEEE
We motivate and develop a natural bicriteria measure for assessing the quality of a clustering that avoids the drawbacks of existing measures. A simple recursive heuristic is shown...