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Aggregating semantic information nuggets for answering clinical queries

Znaidi, Eya and Tamine, Lynda and Latiri, Chiraz Aggregating semantic information nuggets for answering clinical queries. (2016) In: 31st Annual ACM Symposium on Applied Computing (SAC 2016), 4 April 2016 - 8 April 2016 (Pise, Italy).

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Official URL: http://dx.doi.org/10.1145/2851613.2851694

Abstract

In this paper, we address the issue of answering PICO clinical queries formulated within the Evidence Based Medicine framework. Answering clinical questions gives raise to numerous challenges among wich term ambiguity and relevane estimation based on the distribution of the query facets in the documents. The contributions of this work include (1) a new algorithm for query refinement based on the semantic mapping of each facet of the query to a reference terminology and (2) a new document ranking model based on a prioritized aggregation operator that leverages the importance of each facet with regard to a candidate relevant document. The effectiveness of our PICO-based search approach is empirically evaluated using a clinical retrieval collection including 423 queries and more than 1.2 million of medical abstracts from PubMed. The experimental results show that our approach for PICO query answering significantly overpasses state-of-the-art document ranking models.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to ACM editor. The definitive version is available at http://dl.acm.org This papers appears in SAC '16 : Proceedings of the 31st Annual ACM Symposium on Applied Computing ISBN: 978-1-4503-3739-7 The original PDF is available at: http://dl.acm.org/citation.cfm?id=2851694
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Other partners > Université de Tunis (TUNISIA)
Laboratory name:
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Deposited By: IRIT IRIT
Deposited On:08 Mar 2017 15:26

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