113 search results - page 15 / 23 » The containment problem for REAL conjunctive queries with in... |
ECCV
2002
Springer
14 years 10 months ago
2002
Springer
When estimating foreground and background layers (or equivalently an alpha matte), it is often the case that pixel measurements contain mixed colours which are a combination of for...
ICDT
2010
ACM
14 years 6 months ago
2010
ACM
We consider a fragment of XPath named `forward-XPath', which contains all descendant and rightwards sibling axes as well as data equality and inequality tests. The satisfiabi...
SIGIR
2003
ACM
14 years 1 months ago
2003
ACM
One of the major problems in question answering (QA) is that the queries are either too brief or often do not contain most relevant terms in the target corpus. In order to overcom...
ICDE
2010
IEEE
14 years 8 months ago
2010
IEEE
Uncertain data are inherent in many applications such as environmental surveillance and quantitative economics research. As an important problem in many applications, KNN query has...
EDBT
2009
ACM
14 years 3 months ago
2009
ACM
Given a set Q of keywords, conventional keyword search (KS) returns a set of tuples, each of which (i) is obtained from a single relation, or by joining multiple relations, and (i...