66 search results - page 8 / 14 » Conjunctive Query Containment over Trees |
ICDE
2010
IEEE
14 years 7 months ago
2010
IEEE
Abstract-- Classification hierarchies are trees where links codify the fact that a node lower in the hierarchy contains documents whose contents are more specific than those one le...
FOSSACS
2009
Springer
15 years 4 months ago
2009
Springer
Abstract. Graph logic (GL) is a spatial logic for querying graphs introduced by Cardelli et al. It has been observed that in terms of expressive power, this logic is a fragment of ...
69
Voted
TALG
2010
14 years 8 months ago
2010
Fractional hypertree width is a hypergraph measure similar to tree width and hypertree width. Its algorithmic importance comes from the fact that, as shown in previous work [14], ...
76
Voted
DOCENG
2004
ACM
15 years 3 months ago
2004
ACM
In this paper, we discuss how to present the result of searching elements of any type from XML documents relevant to some information need (relevance-oriented search). As the resu...
102
Voted
COMAD
2008
14 years 11 months ago
2008
Answering aggregate queries like sum, count, min, max over regions containing moving objects is often needed for virtual world applications, real-time monitoring systems, etc. Sin...