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iAggregator: Multidimensional Relevance Aggregation Based on a Fuzzy Operator

Moulahi, Bilel and Tamine, Lynda and Ben Yahia, Sadok iAggregator: Multidimensional Relevance Aggregation Based on a Fuzzy Operator. (2014) Journal of the Association for Information Science and Technology, 64 (10). 2062-2083. ISSN 2330-1635

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Official URL: http://dx.doi.org/10.1002/asi.23094

Abstract

Recently, an increasing number of information retrieval studies have triggered a resurgence of interest in rede-fining the algorithmic estimation of relevance, which implies a shift from topical to multidimensional relevance assessment. A key underlying aspect that emerged when addressing this concept is the aggregation of the relevance assessments related to each of the considered dimensions. The most commonly adopted forms of aggregation are based on classical weighted means and linear combination schemes to address this issue. Although some initiatives were recently proposed, none was concerned with considering the inherent dependencies and interactions existing among the relevance criteria, as is the case in many real-life applications. In this article, we present a new fuzzy-based operator, called iAggregator, for multidimensional relevance aggregation. Its main originality, beyond its ability to model interactions between different relevance criteria, lies in its generalization of many classical aggregation functions. To validate our proposal, we apply our operator within a tweet search task. Experiments using a standard benchmark, namely, Text REtrieval Conference Microblog,1 emphasize the relevance of our contribution when compared with traditional aggregation schemes. In addition, it outperforms state-of-the-art aggregation operators such as the Scoring and the And prioritized operators as well as some representative learning-to-rank algorithms.

Item Type:Article
Additional Information:Thanks to Wiley editor. The definitive version is available at http://onlinelibrary.wiley.com/doi/10.1002/asi.23094/abstract
HAL Id:hal-01120754
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Institut Mines-Télécom (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 - El Manar (TUNISIA)
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Deposited By: IRIT IRIT
Deposited On:26 Feb 2015 14:27

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