528 search results - page 57 / 106 » Query-based data pricing |
PVLDB
2010
13 years 9 months ago
2010
Optimization of join queries based on average selectivities is suboptimal in highly correlated databases. In such databases, relations are naturally divided into partitions, each ...
ICDE
2011
IEEE
13 years 2 months ago
2011
IEEE
—It is increasingly common to find graphs in which edges bear different types, indicating a variety of relationships. For such graphs we propose a class of reachability queries ...
SIGMOD
2010
ACM
13 years 11 months ago
2010
ACM
An increasing number of applications operate on data obtained from the Web. These applications typically maintain local copies of the web data to avoid network latency in data acc...
NETWORK
2008
13 years 11 months ago
2008
In recent years, remarkable market competition and economy of scale has resulted in the price erosion of wireless devices for consumer electronics. Especially for wireless data ne...
JEA
2008
13 years 11 months ago
2008
The Spatial Approximation Tree (sa-tree) is a recently proposed data structure for searching in metric spaces. It has been shown that it compares favorably against alternative data...