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» Efficient algorithms for minimizing tree pattern queries
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EDBT
2006
ACM
106views Database» more  EDBT 2006»
14 years 8 months ago
DPTree: A Distributed Pattern Tree Index for Partial-Match Queries in Peer-to-Peer Networks
Abstract. Partial-match queries return data items that contain a subset of the query keywords and order the results based on the statistical properties of the matched keywords. The...
Dyce Jing Zhao, Dik Lun Lee, Qiong Luo
SIGMOD
2004
ACM
156views Database» more  SIGMOD 2004»
14 years 8 months ago
Tree Logical Classes for Efficient Evaluation of XQuery
XML is widely praised for its flexibility in allowing repeated and missing sub-elements. However, this flexibility makes it challenging to develop a bulk algebra, which typically ...
Stelios Paparizos, Yuqing Wu, Laks V. S. Lakshmana...
ICDM
2002
IEEE
167views Data Mining» more  ICDM 2002»
14 years 1 months ago
From Path Tree To Frequent Patterns: A Framework for Mining Frequent Patterns
In this paper, we propose a new framework for mining frequent patterns from large transactional databases. The core of the framework is of a novel coded prefix-path tree with two...
Yabo Xu, Jeffrey Xu Yu, Guimei Liu, Hongjun Lu
JCSS
2007
107views more  JCSS 2007»
13 years 8 months ago
On the minimization of XML Schemas and tree automata for unranked trees
Automata for unranked trees form a foundation for XML schemas, querying and pattern languages. We study the problem of efficiently minimizing such automata. First, we study unrank...
Wim Martens, Joachim Niehren
VLSID
2002
IEEE
160views VLSI» more  VLSID 2002»
14 years 8 months ago
An Efficient Hierarchical Timing-Driven Steiner Tree Algorithm for Global Routing
In this paper, we propose a hierarchical timing-driven Steiner tree algorithm for global routing which considers the minimization of timing delay during the tree construction as t...
Jingyu Xu, Xianlong Hong, Tong Jing, Yici Cai, Jun...