167 search results - page 9 / 34 » Optimization of Query Plans in the presence of Access Limita... |
ICDE
2010
IEEE
14 years 2 months ago
2010
IEEE
— Finding the k nearest neighbors (kNN) of a query point, or a set of query points (kNN-Join) are fundamental problems in many application domains. Many previous efforts to solve...
DASFAA
2008
IEEE
14 years 2 months ago
2008
IEEE
Twig pattern matching (TPM) is the core operation of XML query processing. Existing approaches rely on either efficient data structures or novel labeling/indexing schemes to reduce...
CIDR
2011
12 years 11 months ago
2011
Structured query language (SQL) is a classical way to access relational databases. Although SQL is powerful to query relational databases, it is rather hard for inexperienced user...
SIGMOD
2009
ACM
14 years 7 months ago
2009
ACM
We present a complete XPath cost-based optimization and execution framework and demonstrate its effectiveness and efficiency for a variety of queries and datasets. The framework i...
SAC
1997
ACM
13 years 12 months ago
1997
ACM
Infomaster is an information integration system. It provides integrated access to distributed, heterogeneous information sources, thus giving its users the illusion of a centraliz...