59 search results - page 5 / 12 » Containment of conjunctive queries on annotated relations |
PODS
2010
ACM
14 years 17 days ago
2010
ACM
For many problems arising in the setting of graph querying (such as finding semantic associations in RDF graphs, exact and approximate pattern matching, sequence alignment, etc.)...
APWEB
2005
Springer
14 years 28 days ago
2005
Springer
Summarizing topological relations is fundamental to many spatial applications including spatial query optimization. In this paper, we examine the selectivity estimation for range w...
PODS
2009
ACM
14 years 8 months ago
2009
ACM
The paper investigates the question of whether a partially closed database has complete information to answer a query. In practice an enterprise often maintains master data Dm, a ...
SOFSEM
2010
Springer
14 years 4 months ago
2010
Springer
Abstract. This article introduces KWQL, spoken “quickel”, a rulebased query language for a semantic wiki based on the label-keyword query paradigm. KWQL allows for rich combine...
BMCBI
2010
13 years 7 months ago
2010
Background: Advances in biotechnology and in high-throughput methods for gene analysis have contributed to an exponential increase in the number of scientific publications in thes...