4335 search results - page 820 / 867 » Ontology Engineering Relationally |
FSTTCS
2009
Springer
14 years 3 months ago
2009
Springer
We study the branching program complexity of the tree evaluation problem, introduced in [BCM+09a] as a candidate for separating NL from LogCFL. The input to the problem is a roote...
ICDE
2009
IEEE
14 years 10 months ago
2009
IEEE
Keyword queries enjoy widespread usage as they represent an intuitive way of specifying information needs. Recently, answering keyword queries on graph-structured data has emerged ...
ICDE
2006
IEEE
14 years 10 months ago
2006
IEEE
The high quality, structured data from Web structured sources is invaluable for many applications. Hidden Web databases are not directly crawlable by Web search engines and are on...
ICDE
2003
IEEE
14 years 10 months ago
2003
IEEE
Expressing complex OLAP queries using group-by, aggregation, and joins can be extremely difficult. As a result of this, many alternate ways of expressing such queries have been de...
ICDE
1998
IEEE
14 years 10 months ago
1998
IEEE
We have developed a MultiMedia Visual Information Seeking (MMVIS) Environment that is the first system to support an integrated approach to the direct manipulation specification o...