710 search results - page 16 / 142 » Efficiency of Nested Relational Document Database Systems |
WEBDB
2005
Springer
15 years 6 months ago
2005
Springer
In the relational model it has been shown that the flat relational algebra has the same expressive power as the nested relational algebra, as far as queries over flat relations ...
143
click to vote
MMSEC
2006
ACM
15 years 7 months ago
2006
ACM
In this paper, we introduce to the special domain of image annotation watermarking, based on embedding of hierarchical data related to objects into user-selected areas on an image...
173
click to vote
SIGMOD
2006
ACM
16 years 1 months ago
2006
ACM
Relational XQuery systems try to re-use mature relational data management infrastructures to create fast and scalable XML database technology. This paper describes the main featur...
216
click to vote
ICDE
2003
IEEE
16 years 2 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...
135
click to vote
ER
2008
Springer
15 years 3 months ago
2008
Springer
Abstract. Data in many industrial application systems are often neither completely structured nor unstructured. Consequently semi-structured data models such as XML have become pop...