156 search results - page 1 / 32 » Statistical Learning Techniques for Costing XML Queries |
VLDB
2005
ACM
13 years 10 months ago
2005
ACM
Developing cost models for query optimization is significantly harder for XML queries than for traditional relational queries. The reason is that XML query operators are much mor...
EDBT
2010
ACM
13 years 10 months ago
2010
ACM
Most modern RDBMS depend on the query processing optimizer’s cost model to choose the best execution plan for a given query. Since the physical IO (PIO) is a costly operation to...
ER
2003
Springer
13 years 10 months ago
2003
Springer
We consider the problem of improving the efficiency of query processing on an XML interface of a relational database, for predefined query workloads. The main contribution of this ...
CIKM
2003
Springer
13 years 10 months ago
2003
Springer
There have been several techniques proposed for building statistics for static XML data. However, very little work has been done in the area of building XML statistics for data so...
WWW
2008
ACM
13 years 4 months ago
2008
ACM
We propose a novel Partition Path-Based (PPB) grouping strategy to store compressed XML data in a stream of blocks. In addition, we employ a minimal indexing scheme called Block S...