112 search results - page 2 / 23 » Semantic Annotation of Maps Through Knowledge Provenance |
FLAIRS
2007
13 years 7 months ago
2007
The difficulty of domain knowledge acquisition is one of the most sensible challenges of intelligent tutoring systems. Relying on domain experts and building domain models from sc...
CORR
2011
Springer
13 years 16 days ago
2011
Springer
We study in this paper provenance information for queries with aggregation. Provenance information was studied in the context of various query languages that do not allow for aggr...
AMKM
2003
Springer
13 years 10 months ago
2003
Springer
This paper presents an agent-based approach to semantic exploration and knowledge discovery in large information spaces by means of capturing, visualizing and making usable implic...
ESWS
2008
Springer
13 years 7 months ago
2008
Springer
Abstract. For document-centric work, meta-information in form of annotations has proven useful to enhance search and other retrieval tasks. The Mymory project1 uses a web-based wor...
ICDT
2009
ACM
14 years 6 months ago
2009
ACM
We study containment and equivalence of (unions of) conjunctive queries on relations annotated with elements of a commutative semiring. Such relations and the semantics of positiv...