Automatically tagging documents using search engine keywords

People write keywords or sentences in a search engine and retrieve a set of documents related to that query. The search engine finds the best match between the keywords and the document.

Using the inverse look-up, we can discover that a certain document has been found using the specific search terms. I use this technique to automatically tag my research papers. The tags are the keywords people have used to download that specific paper. You can check the example in the research section of my home page.

And I have recently found a paper on the subject:
Learn from Web Search Logs to Organize Search Results that will be presented by Xuanhui Wang and ChengXiang Zhai at the upcoming SIGIR 2007 conference.
Thanks to Greg Linden Blog

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