51 search results - page 4 / 11 » Rewriting and Evaluating Tree Queries with XPath |
ICDE
2010
IEEE
14 years 5 months ago
2010
IEEE
A large fraction of an XML document typically consists of text data. The XPath query language allows text search via the equal, contains, and starts-with predicates. Such predicate...
WEBDB
2005
Springer
13 years 11 months ago
2005
Springer
In recent years it has been argued that when XML encodings become complex, DOM trees are no longer adequate for query processing. Alternative representations of XML documents, suc...
XIMEP
2004
ACM
13 years 11 months ago
2004
ACM
We argue that efficient support for schema validation and type annotation in XQuery processors deserves as much attention as efficient evaluation techniques for XPath queries have...
ICDT
2010
ACM
13 years 7 months ago
2010
ACM
When a query is evaluated under bag semantics, each answer is returned as many times as it has derivations. Bag semantics has long been recognized as important, especially when ag...
SIGMOD
2009
ACM
14 years 5 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...