Lore: a database management system for semistructured data
ACM SIGMOD Record
Holistic twig joins: optimal XML pattern matching
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
On Efficient Matching of Streaming XML Documents and Queries
EDBT '02 Proceedings of the 8th International Conference on Extending Database Technology: Advances in Database Technology
Processing XML Streams with Deterministic Automata
ICDT '03 Proceedings of the 9th International Conference on Database Theory
DataGuides: Enabling Query Formulation and Optimization in Semistructured Databases
VLDB '97 Proceedings of the 23rd International Conference on Very Large Data Bases
Efficient Filtering of XML Documents for Selective Dissemination of Information
VLDB '00 Proceedings of the 26th International Conference on Very Large Data Bases
Indexing and Querying XML Data for Regular Path Expressions
Proceedings of the 27th International Conference on Very Large Data Bases
A Fast Index for Semistructured Data
Proceedings of the 27th International Conference on Very Large Data Bases
EDBT '02 Proceedings of the Worshops XMLDM, MDDE, and YRWS on XML-Based Data Management and Multimedia Engineering-Revised Papers
ViST: a dynamic index method for querying XML data by tree structures
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
Stream processing of XPath queries with predicates
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
YFilter: Efficient and Scalable Filtering of XML Documents
ICDE '02 Proceedings of the 18th International Conference on Data Engineering
Efficient Filtering of XML Documents with XPath Expressions
ICDE '02 Proceedings of the 18th International Conference on Data Engineering
Structural Joins: A Primitive for Efficient XML Query Pattern Matching
ICDE '02 Proceedings of the 18th International Conference on Data Engineering
Implementing a scalable XML publish/subscribe system using relational database systems
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
Bloom Filter-Based XML Packets Filtering for Millions of Path Queries
ICDE '05 Proceedings of the 21st International Conference on Data Engineering
FiST: scalable XML document filtering by sequencing twig patterns
VLDB '05 Proceedings of the 31st international conference on Very large data bases
Predicate-based Filtering of XPath Expressions
ICDE '06 Proceedings of the 22nd International Conference on Data Engineering
Efficient algorithms for evaluating xpath over streams
Proceedings of the 2007 ACM SIGMOD international conference on Management of data
Massively multi-query join processing in publish/subscribe systems
Proceedings of the 2007 ACM SIGMOD international conference on Management of data
XTREAM: An efficient multi-query evaluation on streaming XML data
Information Sciences: an International Journal
Information Sciences: an International Journal
Holistically Stream-based Processing Xtwig Queries
World Wide Web
Selectivity-sensitive shared evaluation of multiple continuous XPath queries over XML streams
Information Sciences: an International Journal
Fast ELCA computation for keyword queries on XML data
Proceedings of the 13th International Conference on Extending Database Technology
Suggestion of promising result types for XML keyword search
Proceedings of the 13th International Conference on Extending Database Technology
Structural and semantic aspects of similarity of Document Type Definitions and XML schemas
Information Sciences: an International Journal
Adaptive relaxation for querying heterogeneous XML data sources
Information Systems
Element similarity measures in XML schema matching
Information Sciences: an International Journal
Information Sciences: an International Journal
Top-k keyword search over probabilistic XML data
ICDE '11 Proceedings of the 2011 IEEE 27th International Conference on Data Engineering
Leveraging spatial join for robust tuple extraction from web pages
Information Sciences: an International Journal
| Hi-index | 0.07 |
More and more XML data is generated and used for data exchange. In this paper, we address the problem of filtering XML documents with large number of XPath expressions, which may contain 'ancestor' and 'parent' axes. XPath expressions with these axes are more powerful and flexible for users to describe their interests in publish/subscribe systems. First, we analyze the characteristics of the 'parent' axis and propose a series of rules to eliminate it in XPath expressions. Then we propose a new index structure called NIndex, which is designed to efficiently store and index large number of XPath expressions. NIndex offers several features which make it especially attractive for the large scale selective dissemination of information, including the ability to handle complex XPath expressions with 'ancestor' and 'parent' axes, and efficient pruning. Based on NIndex, we design a new filtering algorithm with low complexity for our problem. Our experiment results show that our algorithm performs well across a range of XPath expressions and documents.