204 search results - page 26 / 41 » Containment of Conjunctive Queries with Negation: Algorithms... |
COMAD
2008
13 years 10 months ago
2008
Although many algorithms have been proposed for evaluating XPath queries containing un-ordered axes (child, descendant, parent and ancestor) against streaming XML data, there are ...
FCT
2009
Springer
14 years 3 months ago
2009
Springer
Suppose that we are given a set of n elements d of which are “defective”. A group test can check for any subset, called a pool, whether it contains a defective. It is well know...
CIKM
2005
Springer
14 years 2 months ago
2005
Springer
The detection of new information in a document stream is an important component of many potential applications. In this paper, a new novelty detection approach based on the identi...
SAC
2011
ACM
12 years 11 months ago
2011
ACM
Semantic caching augments cached data with a semantic description of the data. These semantic descriptions can be used to improve execution time for similar queries by retrieving ...
CIKM
2009
Springer
14 years 3 months ago
2009
Springer
Search engines that support structured documents typically support structure created by the author (e.g., title, section), and may also support structure added by an annotation pr...