86 search results - page 7 / 18 » The effect of topic set size on retrieval experiment error |
RIAO
2007
13 years 8 months ago
2007
The paper proposes an approach to information retrieval based on the use of a structure (ontology) both for document (resp. query) indexing and query evaluating. The conceptual st...
MM
2010
ACM
13 years 7 months ago
2010
ACM
The major scientific problem for content-based video retrieval is the semantic gap. Generally speaking, there are two appropriate ways to bridge the semantic gap: the first one is...
SIGIR
2005
ACM
14 years 28 days ago
2005
ACM
The effectiveness of information retrieval systems is measured by comparing performance on a common set of queries and documents. Significance tests are often used to evaluate the...
SIGIR
2009
ACM
14 years 1 months ago
2009
ACM
Crawl selection policy has a direct influence on Web search effectiveness, because a useful page that is not selected for crawling will also be absent from search results. Yet th...
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...