Title
Monitoring XML data on the Web
Abstract
We consider the monitoring of a flow of incoming documents. More precisely, we present here the monitoring used in a very large warehouse built from XML documents found on the web. The flow of documents consists in XML pages (that are warehoused) and HTML pages (that are not). Our contributions are the following:a subscription language which specifies the monitoring of pages when fetched, the periodical evaluation of continuous queries and the production of XML reports.the description of the architecture of the system we implemented that makes it possible to monitor a flow of millions of pages per day with millions of subscriptions on a single PC, and scales up by using more machines.a new algorithm for processing alerts that can be used in a wider context.We support monitoring at the page level (e.g., discovery of a new page within a certain semantic domain) as well as at the element level (e.g., insertion of a new electronic product in a catalog).This work is part of the Xyleme system. Xyleme is developed on a cluster of PCs under Linux with Corba communications. The part of the system described in this paper has been implemented. We mention first experiments.
Year
DOI
Venue
2001
10.1145/375663.375723
SIGMOD Conference
Keywords
Field
DocType
data mining,knowledge discovery,similarity search,xml document
XML Base,World Wide Web,XML Encryption,Efficient XML Interchange,Streaming XML,Information retrieval,XML validation,Computer science,Document Structure Description,Database,XML Catalog,XML Signature
Conference
Volume
Issue
ISSN
30
2
0163-5808
ISBN
Citations 
PageRank 
1-58113-332-4
77
8.48
References 
Authors
9
4
Name
Order
Citations
PageRank
Benjamin Nguyen113311.66
Serge Abiteboul290952941.83
Gregory Cobena358538.41
Mihai Preda421219.88