17 search results - page 3 / 4 » PREFER: A System for the Efficient Execution of Multi-parame... |
SIGMOD
2008
ACM
14 years 5 months ago
2008
ACM
Supporting ranking queries in database systems has been a popular research topic recently. However, there is a lack of study on supporting ranking queries in data warehouses where...
WWW
2009
ACM
14 years 6 months ago
2009
ACM
To deal with the problem of empty or too little answers returned from a Web database in response to a user query, this paper proposes a novel approach to provide relevant and rank...
EDBT
2010
ACM
13 years 8 months ago
2010
ACM
Recently, there has been growing interest in random sampling from online hidden databases. These databases reside behind form-like web interfaces which allow users to execute sear...
SIGMOD
2002
ACM
14 years 5 months ago
2002
ACM
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...
PODS
2008
ACM
14 years 5 months ago
2008
ACM
In the rank join problem, we are given a set of relations and a scoring function, and the goal is to return the join results with the top K scores. It is often the case in practic...