483 search results - page 22 / 97 » Evaluating Top-k Selection Queries |
ICIP
2003
IEEE
14 years 9 months ago
2003
IEEE
In this paper, we evaluate and investigate two main types of relevance feedback algorithms; the Euclidean and the correlation?based approaches. In the first case, we examine heuri...
SEMWEB
2010
Springer
13 years 5 months ago
2010
Springer
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
ADBIS
2009
Springer
13 years 5 months ago
2009
Springer
We consider the problem of selecting views and indexes that minimize the evaluation costs of the important queries under an upper bound on the disk space available for storing the ...
NAACL
2004
13 years 9 months ago
2004
The paper presents two approaches to interactively refining user search formulations and their evaluation in the new High Accuracy Retrieval from Documents (HARD) track of TREC-12...
CIKM
2009
Springer
13 years 11 months ago
2009
Springer
In some retrieval situations, a system must search across multiple collections. This task, referred to as federated search, occurs for example when searching a distributed index o...