1452 search results - page 152 / 291 » The Effectiveness of Query Expansion for Distributed Informa... |
ICDE
2010
IEEE
14 years 7 months ago
2010
IEEE
Abstract-- This paper introduces a deterministic approximation algorithm with error guarantees for computing the probability of propositional formulas over discrete random variable...
WWW
2005
ACM
14 years 8 months ago
2005
ACM
In an environment of distributed text collections, the first step in the information retrieval process is to identify which of all available collections are more relevant to a giv...
SIGIR
2011
ACM
12 years 11 months ago
2011
ACM
The Bag-Of-Visual-Words (BOVW) paradigm is fast becoming a popular image representation for Content-Based Image Retrieval (CBIR), mainly because of its better retrieval effectiven...
CIKM
2004
Springer
14 years 1 months ago
2004
Springer
We examine the problem of retrieving the top-m ranked items from a large collection, randomly distributed across an n-node system. In order to retrieve the top m overall, we must ...
CIKM
2010
Springer
13 years 6 months ago
2010
Springer
The probability that a term appears in relevant documents ( ) is a fundamental quantity in several probabilistic retrieval models, however it is difficult to estimate without rele...