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» Efficient Optimization of Iterative Queries
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ICIP
1998
IEEE
14 years 10 months ago
A Fast and Robust Point Tracking Algorithm
We present an algorithm that efficiently tracks a predefined set of landmark points in a time sequence of images. The algorithm iteratively optimizes the correspondences between t...
Cor J. Veenman, Emile A. Hendriks, Marcel J. T. Re...
SYRCODIS
2008
120views Database» more  SYRCODIS 2008»
13 years 10 months ago
Efficient Implementation of XQuery Constructor Expressions
Element constructor is one of most expensive operations of the XQuery language as it requires deep copy of the nodes which make up the content of the constructed element. In this ...
Leonid Novak, Maxim Grinev, Ilya Taranov
ESCIENCE
2007
IEEE
14 years 26 days ago
Storing and Querying Scientific Workflow Provenance Metadata Using an RDBMS
Provenance management has become increasingly important to support scientific discovery reproducibility, result interpretation, and problem diagnosis in scientific workflow enviro...
Artem Chebotko, Xubo Fei, Cui Lin, Shiyong Lu, Far...
DASFAA
2007
IEEE
174views Database» more  DASFAA 2007»
14 years 3 months ago
Efficient Holistic Twig Joins in Leaf-to-Root Combining with Root-to-Leaf Way
Finding all the occurrences of a twig pattern on multiple elements in an XML document is a core operation for efficient evaluation of XML queries. Holistic twig join algorithms, Tw...
Guoliang Li, Jianhua Feng, Yong Zhang, Lizhu Zhou
SIGMOD
2003
ACM
140views Database» more  SIGMOD 2003»
14 years 9 months ago
Stream Processing of XPath Queries with Predicates
We consider the problem of evaluating large numbers of XPath filters, each with many predicates, on a stream of XML documents. The solution we propose is to lazily construct a sin...
Ashish Kumar Gupta, Dan Suciu