621 search results - page 9 / 125 » Efficient algorithms for minimizing tree pattern queries |
SOFSEM
2004
Springer
14 years 1 months ago
2004
Springer
We propose an efficient approach for finding relevant XML data twigs defined by unordered query tree specifications. We use the tree signatures as the index structure and find...
ICDE
2004
IEEE
14 years 9 months ago
2004
IEEE
We describe and evaluate a query minimization technique that applies to XQueries, which are nested, perform arbitrary joins, and freely mix bag and set semantics. These features c...
WEBDB
2010
Springer
14 years 1 months ago
2010
Springer
Tree patterns with full text search form the core of both XQuery Full Text and the NEXI query language. On such queries, users expect a relevance-ranked list of XML elements as an...
WWW
2007
ACM
14 years 8 months ago
2007
ACM
Finding Contiguous Sequential Patterns (CSP) is an important problem in Web usage mining. In this paper we propose a new data structure, UpDown Tree, for CSP mining. An UpDown Tre...
TKDE
2008
13 years 8 months ago
2008
In this paper, we present a new tree mining algorithm, DRYADEPARENT, based on the hooking principle first introduced in DRYADE. In the experiments, we demonstrate that the branchin...