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» Querying Linguistic Trees
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VLDB
2002
ACM
133views Database» more  VLDB 2002»
16 years 21 days ago
Tree pattern query minimization
: Purpose ? Tree pattern is at the core of XML queries. The tree patterns in XML queries typically contain redundancies, especially when broad integrity constraints (ICs) are prese...
Sihem Amer-Yahia, SungRan Cho, Laks V. S. Lakshman...
120
Voted
BMCBI
2006
150views more  BMCBI 2006»
15 years 16 days ago
TreeDyn: towards dynamic graphics and annotations for analyses of trees
Background: Analyses of biomolecules for biodiversity, phylogeny or structure/function studies often use graphical tree representations. Many powerful tree editors are now availab...
François Chevenet, Christine Brun, Anne-Lau...
SIGMOD
2003
ACM
174views Database» more  SIGMOD 2003»
16 years 19 days ago
ViST: A Dynamic Index Method for Querying XML Data by Tree Structures
With the growing importance of XML in data exchange, much research has been done in providing flexible query facilities to extract data from structured XML documents. In this pape...
Haixun Wang, Sanghyun Park, Wei Fan, Philip S. Yu
93
Voted
SIGMOD
2004
ACM
121views Database» more  SIGMOD 2004»
16 years 19 days ago
An Optimal Algorithm for Querying Tree Structures and its Applications in Bioinformatics
Trees and graphs are widely used to model biological databases. Providing efficient algorithms to support tree-based or graph-based querying is therefore an important issue. In th...
Hsiao-Fei Liu, Ya-Hui Chang, Kun-Mao Chao
107
Voted
SEMWEB
2010
Springer
14 years 10 months ago
Using Reformulation Trees to Optimize Queries over Distributed Heterogeneous Sources
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
Yingjie Li, Jeff Heflin