Towards a Contextual and Semantic Information Retrieval System Based on Non-negative Matrix Factorization Technique

  • Nesrine Ksentini
  • Mohamed Tmar
  • Faïez Gargouri
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 736)


With the fast speed of technological evolution, information retrieval systems are trying to confront the large amount of textual data in order to retrieve pertinent information to meet users needs or queries. Information retrieval systems depend also on the user’s query who often finds difficulty to express his need.

To resolve these problems, we propose, in this paper, a new approach that provides a contextual and semantic information retrieval system.

Our proposed system is based firstly on NNMF (Non-negative Matrix Factorization) technique for data analysis in order to present textual data with new and small representations and to organize this data into categories. Secondly, our system try to how ameliorate the user’s need with new semantic keywords that keeping the same context of the original query, by exploiting obtained results by the used data analysis technique and the LSM method that defines semantic relationships between terms.

Experimental results performed on the ClefEhealth-2014 database demonstrate the performance of our proposed approach on large scale text collections.


Semantic search system Data analysis Information retrieval Text representation Semantic relationships 


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Nesrine Ksentini
    • 1
  • Mohamed Tmar
    • 1
  • Faïez Gargouri
    • 1
  1. 1.MIRACL LaboratoryUniversity of SfaxSakiet Ezzeit, SfaxTunisia

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