260 search results - page 13 / 52 » Kleisli category and database mappings |
ICDT
2010
ACM
13 years 6 months ago
2010
ACM
Schema mapping composition is a fundamental operation in schema management and data exchange. The mapping composition problem has been extensively studied for a number of mapping ...
GIS
2003
ACM
14 years 8 months ago
2003
ACM
This paper introduces an approach for closer integration of selforganizing maps into the visualization of spatio-temporal phenomena in GIS. It is proposed to provide a more explic...
WWW
2004
ACM
14 years 8 months ago
2004
ACM
This paper presents a system for efficient data transformations between XML and relational databases, called XML Data Mediator (XDM). XDM enables the transformation by externalizi...
PODS
2010
ACM
14 years 17 days ago
2010
ACM
In the last few years, a lot of attention has been paid to the specification and subsequent manipulation of schema mappings, a problem which is of fundamental importance in metad...
SIGMOD
2011
ACM
12 years 10 months ago
2011
ACM
Joins are essential for many data analysis tasks, but are not supported directly by the MapReduce paradigm. While there has been progress on equi-joins, implementation of join alg...