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» An Algebra for XML Query
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EDBT
2002
ACM
125views Database» more  EDBT 2002»
14 years 9 months ago
Estimating Answer Sizes for XML Queries
Abstract. Estimating the sizes of query results, and intermediate results, is crucial to many aspects of query processing. In particular, it is necessary for effective query optimi...
Yuqing Wu, Jignesh M. Patel, H. V. Jagadish
CIKM
2009
Springer
14 years 2 months ago
Answering XML queries using materialized views revisited
Answering queries using views is a well-established technique in databases. In this context, two outstanding problems can be formulated. The first one consists in deciding whethe...
Xiaoying Wu, Dimitri Theodoratos, Wendy Hui Wang
EDBT
2006
ACM
121views Database» more  EDBT 2006»
14 years 9 months ago
A Decomposition-Based Probabilistic Framework for Estimating the Selectivity of XML Twig Queries
In this paper we present a novel approach for estimating the selectivity of XML twig queries. Such a technique is useful for approximate query answering as well as for determining...
Chao Wang, Srinivasan Parthasarathy, Ruoming Jin
DASFAA
2005
IEEE
112views Database» more  DASFAA 2005»
14 years 3 months ago
Xandy: Detecting Changes on Large Unordered XML Documents Using Relational Databases
Previous works in change detection on XML documents are not suitable for detecting the changes to large XML documents as it requires a lot of memory to keep the two versions of XML...
Erwin Leonardi, Sourav S. Bhowmick, Sanjay Kumar M...
AMR
2005
Springer
137views Multimedia» more  AMR 2005»
14 years 3 months ago
Information Retrieval of Sequential Data in Heterogeneous XML Databases
The XML language is a W3C standard sustained by both the industry and the scientific community. Therefore, the available information annotated in XML keeps and will keep increasing...
Eugen Popovici, Pierre-Francois Marteau, Gildas M&...