241 search results - page 37 / 49 » Effective pruning for XML structural match queries |
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
This work addresses a novel spatial keyword query called the m-closest keywords (mCK) query. Given a database of spatial objects, each tuple is associated with some descriptive inf...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
The W3C XQuery language recommendation, based on a hierarchical and ordered document model, supports a wide variety of constructs and use cases. There is a diversity of approaches...
ESWS
2008
Springer
13 years 9 months ago
2008
Springer
A fundamental problem related to graph structured databases is searching for substructures. One issue with respect to optimizing such searches is the ability to estimate the freque...
ICDE
2011
IEEE
12 years 11 months ago
2011
IEEE
— SQL is a classical and powerful tool for querying relational databases. However, it is rather hard for inexperienced users to pose SQL queries, as they are required to be pro...
XSYM
2004
Springer
14 years 25 days ago
2004
Springer
A key step in the optimization of declarative queries over XML data is estimating the selectivity of path expressions, i.e., the number of elements reached by a specific navigatio...