Method and system for automatically extracting data from web sites
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United States of America Patent
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Sep 23, 2014
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app pub date -
Jul 26, 2011
filing date -
Jul 15, 2005
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Abstract
In accordance with an embodiment, data may be automatically extracted from semi-structured web sites. Unsupervised learning may be used to analyze web sites and discover their structure. One method utilizes a set of heterogeneous “experts,” each expert being capable of identifying certain types of generic structure. Each expert represents its discoveries as “hints.” Based on these hints, the system may cluster the pages and text segments and identify semi-structured data that can be extracted. To identify a good clustering, a probabilistic model of the hint-generation process may be used.
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