507 search results - page 62 / 102 » Portfolio theory of information retrieval |
PODS
2006
ACM
14 years 7 months ago
2006
ACM
The query equivalence problem has been studied extensively for set-semantics and, more recently, for bag-set semantics. However, SQL queries often combine set and bag-set semantic...
WSDM
2010
ACM
14 years 5 months ago
2010
ACM
In addition to the actual content Web pages consist of navigational elements, templates, and advertisements. This boilerplate text typically is not related to the main content, ma...
SIGIR
2005
ACM
14 years 1 months ago
2005
ACM
We consider two of the most commonly cited measures of retrieval performance: average precision and R-precision. It is well known that average precision and R-precision are highly...
SIGIR
2004
ACM
14 years 1 months ago
2004
ACM
Document representation and indexing is a key problem for document analysis and processing, such as clustering, classification and retrieval. Conventionally, Latent Semantic Index...
MM
2010
ACM
13 years 7 months ago
2010
ACM
Search engines are used to return a long list of hundreds or even thousands of videos in response to a query topic. Efficient navigation of videos becomes difficult and users ofte...