3499 search results - page 1 / 700 » On the local optimality of LambdaRank |
SIGIR
2009
ACM
14 years 5 months ago
2009
ACM
IR
2010
13 years 9 months ago
2010
Abstract We present a new ranking algorithm that combines the strengths of two previous methods: boosted tree classification, and LambdaRank, which has been shown to be empiricall...
CIKM
2009
Springer
14 years 5 months ago
2009
Springer
Despite the widespread use of BM25, there have been few studies examining its effectiveness on a document description over single and multiple field combinations. We determine t...
SIGIR
2010
ACM
14 years 2 months ago
2010
ACM
Evaluation metrics play a critical role both in the context of comparative evaluation of the performance of retrieval systems and in the context of learning-to-rank (LTR) as objec...
CDC
2009
IEEE
13 years 8 months ago
2009
IEEE
Abstract-- Local convergence is a limitation of many optimization approaches for multimodal functions. For hybrid model learning, this can mean a compromise in accuracy. We develop...