405 search results - page 12 / 81 » Semantic Assumptions and Query Evaluation in Temporal Databa... |
INFSOF
2006
13 years 7 months ago
2006
The parametric data model captures an object in terms of a single tuple. This feature eliminates unnecessary self-join operations to combine tuples scattered in a temporal relatio...
VLDB
1989
ACM
13 years 11 months ago
1989
ACM
An Event-Join combinestemporaljoin and outerjoin properties into a single operation. It is mostly used to group temporal attributes of an entity into a single relation. In this pa...
ICPR
2000
IEEE
13 years 11 months ago
2000
IEEE
A collection of distributed databases forms an important architectural component of the ATON project for networked incidence management of highway traffic. The database sub-archit...
GIS
2002
ACM
13 years 7 months ago
2002
ACM
This paper contributes a general approach to characterizing patterns of change in a spatio-temporal database. While there is a particular interest in modelling and querying how sp...
DEXAW
2010
IEEE
13 years 8 months ago
2010
IEEE
-- This paper proposes to enhance search query log analysis by taking into account the semantic properties of query terms. We first describe a method for extracting a global semant...