121 search results - page 22 / 25 » On Containment of Conjunctive Queries with Negation |
ASUNAM
2010
IEEE
13 years 9 months ago
2010
IEEE
Subgraph matching is a key operation on graph data. Social network (SN) providers may want to find all subgraphs within their social network that "match" certain query gr...
ALT
2009
Springer
14 years 4 months ago
2009
Springer
Abstract. A variant of iterative learning in the limit (cf. [LZ96]) is studied when a learner gets negative examples refuting conjectures containing data in excess of the target la...
SSIAI
2000
IEEE
14 years 2 days ago
2000
IEEE
This paper describes a content-based image retrieval system that employs both higher-level and lower-level vision methodologies separately and in conjunction for the retrieval of ...
LREC
2010
13 years 9 months ago
2010
The Internet is an ever growing source of information stored in documents of different languages. Hence, cross-lingual resources are needed for more and more NLP applications. Thi...
NAR
2007
13 years 7 months ago
2007
The GeneTrees phylogenomics system pursues comparative genomic analyses from the perspective of gene phylogenies for individual genes. The GeneTrees project has the goal of provid...