894 search results - page 95 / 179 » Gram: A Graph Data Model and Query Language |
PODS
2009
ACM
14 years 8 months ago
2009
ACM
In this work we investigate the satisfiability problem for the logic XPath( , , =), that includes all downward axes as well as equality and inequality tests. We address this probl...
DBPL
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. We propose a framework in which query sizes can be estimated from arbitrary statistical assertions on the data. In its most general form, a statistical assertion states t...
DBPL
2001
Springer
14 years 9 days ago
2001
Springer
Abstract. We address a fundamental question concerning spatio-temporal database systems: “What are exactly spatio-temporal queries?” We define spatio-temporal queries to be co...
NGITS
1995
Springer
13 years 11 months ago
1995
Springer
Dozens of temporal extension of the relational data model and of the query language SQL have appeared in recent years. Recently, a committee formed by researchers from the academi...
DIS
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. Graph mining approaches are extremely popular and effective in molecular databases. The vast majority of these approaches first derive interesting, i.e. frequent, patte...