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Semistructured Data: The Tsimmis Experience

In this paper we discuss themanagement of semi-structured data, i.e., data that has irregular or dynamically changing structure. We describe components of the Stanford TSIMMIS Project that help extract semi-structured data from Web pages, that allow the storage and querying of semi-structured data, and that allow its browsing through the World Wide Web. A prototype implementation of the TSIMMIS system as described here is currently installed and running in the database group testbed.