| 摘要 |
An exemplary embodiment of the present invention provides a method of identifying providers. The method comprises obtaining a keyword from a client and obtaining a results document from a search, wherein the results document comprises references to documents that contain the keyword. The method also comprises analyzing the results document to identify a plurality of the references, accessing the documents corresponding to the identified references, and analyzing the accessed documents to determine a list of keywords. The list of keywords is compared to lists of keywords associated with each of a plurality of category headings to identify a list of related category headings.
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