We present a new approach that automatically captures the semantic hierarchies in HTML tables, and semi-automatically integrates HTML tables belonging to a domain. It first automatically captures the attribute-value pairs in HTML tables by normalization and recognizing their headings. After generating global schema manually, it learns the lexical semantic sets and contexts, by which it then eliminates the conflicts and solves the nondeterministic problems in mapping each source schema to the global schema to integrate the data in HTML tables.
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