The Niagara Internet Query System
نویسندگان
چکیده
Recently, there has been a great deal of research into XML query languages to enable the execution of database-style queries over XML files. However, merely being an XML query-processing engine does not render a system suitable for querying the Internet. A useful system must provide mechanisms to (a) find the XML files that are relevant to a given query, and (b) deal with remote data sources that either provide unpredictable data access and transfer rates, or are infinite streams, or both. The Niagara Internet Query System was designed from the bottom-up to provide these mechanisms. In this article we describe the overall Niagara architecture, and how Niagara finds relevant XML documents by using a collaboration between the Niagara XML-QL query processor and the Niagara “text-in-context” XML search engine. The Niagara Internet Query System is public domain software that can be found at http://www-db.cs.wisc.edu/niagara/.
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عنوان ژورنال:
- IEEE Data Eng. Bull.
دوره 24 شماره
صفحات -
تاریخ انتشار 2001