6974 search results - page 185 / 1395 » Querying Semi-Structured Data |
SIGMOD
2008
ACM
13 years 8 months ago
2008
ACM
Tree pattern queries (TPQs) provide a natural and easy formalism to query tree-structured XML data, and the efficient processing of such queries has attracted a lot of attention. ...
SEMWEB
2010
Springer
13 years 6 months ago
2010
Springer
We develop query relaxation techniques for regular path queries and combine them with query approximation in order to support flexible querying of RDF data when the user lacks know...
ACMSE
2005
ACM
14 years 1 months ago
2005
ACM
A simple extension to the relational model that permits metadata (more generally metaknowledge) to be stored and manipulated as first class data is proposed. The accompanying que...
SSD
2001
Springer
14 years 19 days ago
2001
Springer
The development of spatiotemporal database systems is primarily motivated by applications tracking and presenting mobile objects. Another important trend is the visualization and p...
PODS
2002
ACM
14 years 8 months ago
2002
ACM
In this overview paper we motivate the need for and research issues arising from a new model of data processing. In this model, data does not take the form of persistent relations...