Ontology Based Personalized Search (1999)
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BibTeX
@INPROCEEDINGS{Pretschner99ontologybased,
author = {Alexander Pretschner and Susan Gauch},
title = {Ontology Based Personalized Search},
booktitle = {},
year = {1999},
pages = {391--398}
}
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Abstract
With the exponentially growing amount of information available on the Internet, the task of retrieving documents of interest has become increasingly difficult. Search engines usually return more than 1,500 results per query, yet out of the top twenty results, only one half turn out to be relevant to the user. One reason for this is that Web queries are in general very short and give an incomplete specification of individual users' information needs. This paper explores ways of incorporating users' interests into the search process to improve the results. The user profiles are structured as a concept hierarchy of 4,400 nodes. These are populated by `watching over a user's shoulder' while he is surfing. No explicit feedback is necessary. The profiles are shown to converge and to reflect the actual interests quite well. One possible deployment of the profiles is investigated: re-ranking and filtering search results. Increases in performance are moderate but noticeable and show that fully ...
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