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DEXA
2004
Springer
14 years 3 months ago
2004
Springer
Abstract. In this paper we propose the Graphical sEmistructured teMporal data model (GEM), which is based on labeled graphs and allows one to represent in a uniform way semistructu...
GIS
1999
ACM
14 years 2 months ago
1999
ACM
An important activity in the design of a particular database application consists in identifying the integrity constraints that must hold on the database, and that are used to det...
CAISE
2010
Springer
13 years 11 months ago
2010
Springer
There is a large amount of data that is published on the Web and several techniques have been developed to extract and integrate data from Web sources. However, Web data are inhere...
DMSN
2010
ACM
13 years 8 months ago
2010
ACM
E-science applications use fine grained data provenance to maintain the reproducibility of scientific results, i.e., for each processed data tuple, the source data used to proce...
INFORMATICALT
2002
13 years 9 months ago
2002
This article presents the ways of identification, selection and transformation of the data into other structures. Relation selection and transformation may change data quantity and...