507 search results - page 29 / 102 » Portfolio theory of information retrieval |
SIGIR
2006
ACM
15 years 3 months ago
2006
ACM
Accurate estimation of information retrieval evaluation metrics such as average precision require large sets of relevance judgments. Building sets large enough for evaluation of r...
ICMCS
2006
IEEE
15 years 3 months ago
2006
IEEE
To bridge the gap between high level semantic concepts and low level visual features in content-based image retrieval (CBIR), online feature selection is really required. An effec...
95
Voted
SIGIR
2005
ACM
15 years 3 months ago
2005
ACM
Latent semantic indexing (LSI) is a well-known unsupervised approach for dimensionality reduction in information retrieval. However if the output information (i.e. category labels...
CIKM
2005
Springer
15 years 3 months ago
2005
Springer
Text similarity spans a spectrum, with broad topical similarity near one extreme and document identity at the other. Intermediate levels of similarity – resulting from summariza...
92
Voted
WWW
2007
ACM
15 years 10 months ago
2007
ACM
Traditionally, information extraction from web tables has focused on small, more or less homogeneous corpora, often based on assumptions about the use of <table> tags. A mul...