279 search results - page 15 / 56 » Towards Adaptive Costing of Database Access Methods |
ADC
2003
Springer
14 years 1 months ago
2003
Springer
Minkowski-sum cost model indicates that balanced data partitioning is not beneficial for high dimensional data. Thus we study several unbalanced partitioning methods and propose ...
VLDB
2005
ACM
14 years 1 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...
CIKM
2010
Springer
13 years 7 months ago
2010
Springer
We design and implement FD-Buffer, a buffer manager for database systems running on flash-based disks. Unlike magnetic disks, flash media has an inherent read-write asymmetry: w...
HPCC
2007
Springer
14 years 2 months ago
2007
Springer
In a data-indexed DHT overlay network, published data annotations form distributed databases. Queries are distributed to these databases in a nonuniform way. Constructing content d...
ICDE
2009
IEEE
14 years 10 months ago
2009
IEEE
Due to the structural heterogeneity of XML, queries are often interpreted approximately. This is achieved by relaxing the query and ranking the results based on their relevance to ...