Abstract
This paper describes the retrieval approaches used by Queen Mary, University of London in the INEX 2006 ad hoc track. In our participation, we mainly investigate element-specific smoothing method within the language modelling framework. We adjust the amount of smoothing required for each XML element depending on its number of topic shifts to provide a focused access to XML elements in the Wikipedia collection. We also investigate whether using non-uniform priors is beneficial for the ad hoc tasks.
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Ashoori, E., Lalmas, M. (2007). Using Topic Shifts in XML Retrieval at INEX 2006. In: Fuhr, N., Lalmas, M., Trotman, A. (eds) Comparative Evaluation of XML Information Retrieval Systems. INEX 2006. Lecture Notes in Computer Science, vol 4518. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-73888-6_26
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DOI: https://doi.org/10.1007/978-3-540-73888-6_26
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-73887-9
Online ISBN: 978-3-540-73888-6
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