Search (27 results, page 1 of 2)

Abdou, S.; Savoy, J.: Searching in Medline : query expansion and manual indexing evaluation (2008) 0.06
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Abstract

Based on a relatively large subset representing one third of the Medline collection, this paper evaluates ten different IR models, including recent developments in both probabilistic and language models. We show that the best performing IR models is a probabilistic model developed within the Divergence from Randomness framework [Amati, G., & van Rijsbergen, C.J. (2002) Probabilistic models of information retrieval based on measuring the divergence from randomness. ACM-Transactions on Information Systems 20(4), 357-389], which result in 170% enhancements in mean average precision when compared to the classical tf idf vector-space model. This paper also reports on our impact evaluations on the retrieval effectiveness of manually assigned descriptors (MeSH or Medical Subject Headings), showing that by including these terms retrieval performance can improve from 2.4% to 13.5%, depending on the underling IR model. Finally, we design a new general blind-query expansion approach showing improved retrieval performances compared to those obtained using the Rocchio approach.

Savoy, J.; Picard, J.: Retrieval effectiveness on the web (2001) 0.02

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Savoy, J.: Estimating the probability of an authorship attribution (2016) 0.02

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Date: 7. 5.2016 21:22:27

Savoy, J.: Stemming of French words based on grammatical categories (1993) 0.02

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Savoy, J.: Bayesian inference networks and spreading activation in hypertext systems (1992) 0.02

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Savoy, J.; Ndarugendamwo, M.; Vrajitoru, D.: Report on the TREC-4 experiment : combining probabilistic and vector-space schemes (1996) 0.01

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Savoy, J.; Calvé, A. le; Vrajitoru, D.: Report on the TREC5 experiment : data fusion and collection fusion (1997) 0.01

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Savoy, J.: ¬A stemming procedure and stopword list for general French Corpora (1999) 0.01

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Savoy, J.; Desbois, D.: Information retrieval in hypertext systems (1991) 0.01

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Savoy, J.: Effectiveness of information retrieval systems used in a hypertext environment (1993) 0.01

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Savoy, J.: ¬A learning scheme for information retrieval in hypertext (1994) 0.01

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Savoy, J.: Searching information in legal hypertext systems (1993/94) 0.01

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Picard, J.; Savoy, J.: Enhancing retrieval with hyperlinks : a general model based on propositional argumentation systems (2003) 0.01

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Savoy, J.: ¬A new probabilistic scheme for information retrieval in hypertext (1995) 0.01

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Savoy, J.: Bibliographic database access using free-text and controlled vocabulary : an evaluation (2005) 0.01

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Dolamic, L.; Savoy, J.: When stopword lists make the difference (2009) 0.01

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Savoy, J.: Ranking schemes in hybrid Boolean systems : a new approach (1997) 0.01

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Savoy, J.: Searching strategies for the Hungarian language (2008) 0.01

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Fautsch, C.; Savoy, J.: Algorithmic stemmers or morphological analysis? : an evaluation (2009) 0.01

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Dolamic, L.; Savoy, J.: Retrieval effectiveness of machine translated queries (2010) 0.01

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