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SIGIR
2011
ACM
12 years 11 months ago
When documents are very long, BM25 fails!
We reveal that the Okapi BM25 retrieval function tends to overly penalize very long documents. To address this problem, we present a simple yet effective extension of BM25, namel...
Yuanhua Lv, ChengXiang Zhai
CIKM
2008
Springer
13 years 10 months ago
To swing or not to swing: learning when (not) to advertise
Web textual advertising can be interpreted as a search problem over the corpus of ads available for display in a particular context. In contrast to conventional information retrie...
Andrei Z. Broder, Massimiliano Ciaramita, Marcus F...
CVPR
2009
IEEE
15 years 3 months ago
Extraction of Tubular Structures over an Orientation Domain
This paper presents a new method to extract a network of vessels centerlines from a medical image. The network is composed of local geodesics over a four-dimensional space that in...
Gabriel Peyré, Mickaël Péchaud,...
HICSS
2006
IEEE
98views Biometrics» more  HICSS 2006»
14 years 2 months ago
Electricity Markets: How Many, Where and When?
Most markets compromise the economist’s ideal of matching the marginal benefits to consumers with the marginal cost of supply for incremental purchases because individual buyers...
Nodir Adilov, Richard E. Schuler
ICASSP
2007
IEEE
14 years 2 months ago
Markov Random Field Energy Minimization via Iterated Cross Entropy with Partition Strategy
This paper introduces a novel energy minimization method, namely iterated cross entropy with partition strategy (ICEPS), into the Markov random field theory. The solver, which is...
Jue Wu, Albert C. S. Chung