Abstract
We participated in two tasks: Multi-8 two-years-on retrieval and Multi-8 results merging. For the multi-8 two-years-on retrieval work, algorithms are proposed to combine simple multilingual ranked lists into a more accurate ranked list. Empirical study shows that the approach of combining multilingual retrieval results can substantially improve the accuracies over single multilingual ranked lists. The Multi-8 results merging task is viewed as similar to the results merging task of federated search. Query-specific and language-specific models are proposed to calculate comparable document scores for a small amount of documents and estimate logistic models by using information of these documents. The logistic models are used to estimate comparable scores for all documents and thus the documents can be sorted into a final ranked list. Experimental results demonstrate the advantage of the query-specific and language-specific models against several other alternatives.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Callan, J., Croft, W.B., Broglio, J.: TREC and TIPSTER experiments with INQUERY. Information Processing and Management 31(3) (1995)
Callan, J., Connell, M.: Query-based sampling of text databases. ACM Transactions on Information Systems 19(2), 97–130 (2001)
Chen, A., Gey, F.C.: Cross-language Retrieval Experiments at CLEF-2003. In: Peters, C. (ed.) Results of the CLEF2002 cross-language evaluation forum (2003)
Kamps, J., Monz, C., de Rijke, M., Sigurbjörnsson, B.: The University of Am-sterdam at CLEF 2003. In: Peters, C. (ed.) Results of the CLEF2003 (2003)
Lee, J.H.: Analyses of multiple evidence combination. In: Proceedings of the 20th Annual Int’l ACM SIGIR Conference (1997)
Martinez-Santiago, M.M., Urena, A.: SINAI on CLEF 2002: Experiments with merging strategies. In: Peters, C.(ed.) Results of the CLEF2002 (2002)
Ogilvie, P., Callan, J.: Experiments using the Lemur toolkit. In: Proceedings of the Tenth Text Retrieval Conference (TREC-10) (2001)
Robertson, S., Walker, S.: Some simple effective approximations to the 2-poisson model for probabilistic weighted retrieval. In: Proceedings of the 17th Annual International ACM SIGIR Conference (1994)
Rogati, M., Yang, Y.M.: CONTROL: CLEF-2003 with Open, Transparent Resources Off-Line. Experiments with merging strategies. In: Peters, C.(ed.) Results of the CLEF2003 (2003)
Savoy, J.: Report on CLEF-2003 Experiments. In: Peters, C. (ed.) Results of the CLEF2003 cross-language evaluation forum (2003)
Si, L., Callan, J.: A Semi-Supervised Learning Method to Merge Search Engine Results. ACM Transactions on Information Systems 24(4), 457–491 (2003)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2006 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Si, L., Callan, J. (2006). CLEF 2005: Multilingual Retrieval by Combining Multiple Multilingual Ranked Lists. In: Peters, C., et al. Accessing Multilingual Information Repositories. CLEF 2005. Lecture Notes in Computer Science, vol 4022. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11878773_13
Download citation
DOI: https://doi.org/10.1007/11878773_13
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-45697-1
Online ISBN: 978-3-540-45700-8
eBook Packages: Computer ScienceComputer Science (R0)