3499 search results - page 1 / 700 » On the local optimality of LambdaRank |
SIGIR
2009
ACM
14 years 8 days ago
2009
ACM
IR
2010
13 years 4 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 11 days 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
13 years 9 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 3 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...