XMill: an efficient compressor for XML data
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Estimating the Selectivity of XML Path Expressions for Internet Scale Applications
Proceedings of the 27th International Conference on Very Large Data Bases
XBench - A Family of Benchmarks for XML DBMSs
Proceedings of the VLDB 2002 Workshop EEXTT and CAiSE 2002 Workshop DTWeb on Efficiency and Effectiveness of XML Tools and Techniques and Data Integration over the Web-Revised Papers
XMach-1: A Benchmark for XML Data Management
Datenbanksysteme in Büro, Technik und Wissenschaft (BTW), 9. GI-Fachtagung,
ACM SIGMOD Record
An Estimation System for XPath Expressions
ICDE '06 Proceedings of the 22nd International Conference on Data Engineering
XCluster Synopses for Structured XML Content
ICDE '06 Proceedings of the 22nd International Conference on Data Engineering
An XML transaction processing benchmark
Proceedings of the 2007 ACM SIGMOD international conference on Management of data
XPathLearner: an on-line self-tuning Markov histogram for XML path selectivity estimation
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
XMark: a benchmark for XML data management
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
Bloom histogram: path selectivity estimation for XML data with updates
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
Toward microbenchmarking XQuery
Information Systems
Dependable cardinality forecasts for XQuery
Proceedings of the VLDB Endowment
XPathMark: an XPath benchmark for the XMark generated data
XSym'05 Proceedings of the Third international conference on Database and XML Technologies
Towards a comprehensive assessment for selectivity estimation approaches of XML queries
International Journal of Web Engineering and Technology
Efficiency frontiers of XML cardinality constraints
Data & Knowledge Engineering
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Estimating the sizes of query results and intermediate results is a crucial part of any effective query optimization process. Due to several reasons, the selectivity estimation problem in the XML domain is more complicated than that in the relational domain. Several research efforts have proposed selectivity estimation approaches in the XML domain. Lacking of a suitablebenchmark was one of the main reasons which prevented a realassessment and comparison between the approaches to be conducted. In this paper we propose a selectivity estimation benchmark for XML queries, XSelMark. It consists of a set of 25 queries organized into seven groups and covers the main aspects of selectivity estimation of XML queries. These queries have been designed with respect to an XML document instance of a popular benchmark for XML data management, XMark. In addition, we suggest some criteria of assessing the capability and quality of XML queries selectivity estimation approaches. Finally, we use the proposed benchmark to assess the capabilities of the-state-of-the-art of the selectivity estimation approaches.