714 search results - page 43 / 143 » Conceptual Query Expansion |
EJC
2008
13 years 10 months ago
2008
Abstract. Classes of graphs with bounded expansion are a generalization of both proper minor closed classes and degree bounded classes. Such classes are based on a new invariant, t...
WSDM
2009
ACM
14 years 4 months ago
2009
ACM
A lot of the world’s knowledge is stored in books, which, as a result of recent mass-digitisation efforts, are increasingly available online. Search engines, such as Google Book...
VLDB
2005
ACM
14 years 3 months ago
2005
ACM
Relational, XML and HTML data can be represented as graphs with entities as nodes and relationships as edges. Text is associated with nodes and possibly edges. Keyword search on s...
CORR
2010
Springer
13 years 10 months ago
2010
Springer
Multidimensional databases support efficiently on-line analytical processing (OLAP). In this paper, we depict a model dedicated to multidimensional databases. The approach we prese...
ER
2004
Springer
14 years 3 months ago
2004
Springer
This paper uses a knowledge-based approach to querying heterogeneous spatial databases based on an ontology and conceptual and attribute similarities. The ontology, which may be in...