- Chancellery Research - Research Publications
Chancellery Research - Research Publications
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ItemInformation retrieval system evaluation: Effort, sensitivity, and reliabilitySanderson, M ; Zobel, J (ACM, 2005-12-01)
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Item2 Document Compaction for Efficient Query Biased Snippet GenerationTsegay, Y ; Puglisi, SJ ; Turpin, A ; Zobel, J ; Boughanem, M ; Berrut, C ; Mothe, J ; SouleDupuy, C (SPRINGER-VERLAG BERLIN, 2009)
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ItemEfficient plagiarism detection for large code repositoriesBurrows, S ; Tahaghoghi, SMM ; Zobel, J (WILEY, 2007-02)
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ItemRedundant documents and search effectivenessBernstein, Y ; Zobel, J (ACM, 2005-12-01)
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ItemUsing query logs to establish vocabularies in distributed information retrievalShokouhi, M ; Zobel, J ; Tahaghoghi, S ; Scholer, F (ELSEVIER SCI LTD, 2007-01)
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ItemAggregated click-through data in a homogeneous user communityWu, M ; Turpin, A ; Zobel, J (ACM, 2008-12-15)
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ItemRobust Result Merging Using Sample-Based Score EstimatesShokouhi, M ; Zobel, J (ASSOC COMPUTING MACHINERY, 2009)In federated information retrieval, a query is routed to multiple collections and a single answer list is constructed by combining the results. Such metasearch provides a mechanism for locating documents on the hidden Web and, by use of sampling, can proceed even when the collections are uncooperative. However, the similarity scores for documents returned from different collections are not comparable, and, in uncooperative environments, document scores are unlikely to be reported. We introduce a new merging method for uncooperative environments, in which similarity scores for the sampled documents held for each collection are used to estimate global scores for the documents returned per query. This method requires no assumptions about properties such as the retrieval models used. Using experiments on a wide range of collections, we show that in many cases our merging methods are significantly more effective than previous techniques.
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ItemB-tries for disk-based string managementAskitis, N ; Zobel, J (SPRINGER, 2009-01)
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ItemCompact features for detection of near-duplicates in distributed retrievalBernstein, Y ; Shokouhi, M ; Zobel, J ; Crestani, F ; Ferragina, P ; Sanderson, M (SPRINGER-VERLAG BERLIN, 2006)
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ItemEfficient online index maintenance for contiguous inverted listsLester, N ; Zobel, J ; Williams, H (ELSEVIER SCI LTD, 2006-07)