Identifying syntactic differences between two programs
Software—Practice & Experience
Algorithms for approximate graph matching
Information Sciences—Informatics and Computer Science: An International Journal
WebGUIDE: querying and navigating changes in Web repositories
Proceedings of the fifth international World Wide Web conference on Computer networks and ISDN systems
Change detection in hierarchically structured information
SIGMOD '96 Proceedings of the 1996 ACM SIGMOD international conference on Management of data
Meaningful change detection in structured data
SIGMOD '97 Proceedings of the 1997 ACM SIGMOD international conference on Management of data
CQ: a personalized update monitoring toolkit
SIGMOD '98 Proceedings of the 1998 ACM SIGMOD international conference on Management of data
WebCQ-detecting and delivering information changes on the web
Proceedings of the ninth international conference on Information and knowledge management
Representing and Querying Changes in Semistructured Data
ICDE '98 Proceedings of the Fourteenth International Conference on Data Engineering
Tracking and viewing changes on the web
ATEC '96 Proceedings of the 1996 annual conference on USENIX Annual Technical Conference
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In this paper we present a new technique for detecting changes on the Web. We propose a new method to measure the similarity of two documents, that can be efficiently used to discover changes in selected portions of the original document. The proposed technique has been implemented in the CDWeb system providing a change monitoring service on theWeb. CDWeb differs from other previously proposed systems since it allows the detection of changes on portions of documents and specific changes expressed by means of complex conditions, i.e. users might want to know if the value of a given stock has increased by more than 10%. Several tests on stock exchange and auction web pages proved the effectiveness of the proposed approach.