Lore: a database management system for semistructured data
ACM SIGMOD Record
SilkRoute: trading between relations and XML
Proceedings of the 9th international World Wide Web conference on Computer networks : the international journal of computer and telecommunications netowrking
Efficient evaluation of XML middle-ware queries
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
APEX: an adaptive path index for XML data
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Covering indexes for branching path queries
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
DataGuides: Enabling Query Formulation and Optimization in Semistructured Databases
VLDB '97 Proceedings of the 23rd International Conference on Very Large Data Bases
A Fast Index for Semistructured Data
Proceedings of the 27th International Conference on Very Large Data Bases
VXMLR: A Visual XML-Relational Database System
Proceedings of the 27th International Conference on Very Large Data Bases
Structural Map: A New Index for Efficient XML Path Expression Processing
WAIM '02 Proceedings of the Third International Conference on Advances in Web-Age Information Management
Quilt: An XML Query Language for Heterogeneous Data Sources
Selected papers from the Third International Workshop WebDB 2000 on The World Wide Web and Databases
TREX: DTD-conforming XML to XML transformations
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
Exploiting Local Similarity for Indexing Paths in Graph-Structured Data
ICDE '02 Proceedings of the 18th International Conference on Data Engineering
Efficient algorithms for processing XPath queries
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
DTD-directed publishing with attribute translation grammars
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
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Different communities specify different standards (DTDs) and only those XML documents conforming to the given DTD can be processed inside a certain community. The goal of DTD-conforming XML to XML transformations with XML Transformation Grammars is to make exchanging XML documents between two communities whose DTDs are distinct feasible. However, in essence XTG evaluation is the process of executing a number of XML queries and thus this presents new challenges to query optimization. In this paper, we investigate each step of evaluating an XTG, and after modelling XML queries, we propose some optimization techniques to speed up XTG evaluation. Finally, the experimental results indicate that those techniques are efficient to XTG evaluation.