Retrieval quality vs. effectiveness of specificity-oriented search in XML collections |
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| Authors: | Norbert Fuhr Norbert Gövert |
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| Institution: | (1) University of Duisburg-Essen, Germany;(2) University of Dortmund, Germany |
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| Abstract: | Content-only queries in hierarchically structured documents should retrieve the most specific document nodes which are exhaustive
to the information need. For this problem, we investigate two methods of augmentation, which both yield high retrieval quality.
As retrieval effectiveness, we consider the ratio of retrieval quality and response time; thus, fast approximations to the
'correct' retrieval result may yield higher effectiveness. We present a classification scheme for algorithms addressing this
issue, and adopt known algorithms from standard document retrieval for XML retrieval. As a new strategy, we propose incremental-interruptible retrieval, which allows for instant presentation of the top ranking documents. We develop a new algorithm implementing this strategy
and evaluate the different methods with the INEX collection. |
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| Keywords: | XML retrieval Content-only search Ranked retrieval Efficiency Incremental algorithm |
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