342 search results - page 43 / 69 » Conjunctive Queries over Trees |
WWW
2011
ACM
13 years 2 months ago
2011
ACM
Query auto completion is known to provide poor predictions of the user’s query when her input prefix is very short (e.g., one or two characters). In this paper we show that con...
VLDB
2007
ACM
14 years 8 months ago
2007
ACM
As computer systems are essential components of many critical commercial services, the need for secure online transactions is now becoming evident. The demand for such application...
FOCS
2003
IEEE
14 years 1 months ago
2003
IEEE
We give a complexity theoretic classification of homomorphism problems for graphs and, more generally, relational structures obtained by restricting the left hand side structure ...
MKWI
2008
13 years 9 months ago
2008
: We introduce infrastructure monitoring as an application domain that demands decentralized system designs. This is motivated by the large scale of these systems, the heterogeneit...
TKDE
2002
13 years 7 months ago
2002
We introduce ImageMap, as a method for indexing and similarity searching in Image DataBases (IDBs). ImageMap answers "queries by example", involving any number of object...