How Much Is “About”? Fuzzy Interpretation of Approximate Numerical Expressions

  • Sébastien LefortEmail author
  • Marie-Jeanne Lesot
  • Elisabetta Zibetti
  • Charles Tijus
  • Marcin Detyniecki
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 610)


Approximate Numerical Expressions (ANEs) are linguistic expressions involving numbers and referring to imprecise ranges of values, such as “about 100”. This paper proposes to interpret ANEs as fuzzy numbers. A model, taking into account the cognitive salience of numbers and based on critical points from Pareto frontiers, is proposed to characterise the support, the kernel and the 0.5-cut of the corresponding membership functions. An experimental study, based on real data, is performed to assess the quality of these estimated parameters.


Approximate numerical expression Fuzzy number Pareto frontier Empirical study Number salience 



This work was performed within the Labex SMART (ANR-11-LABX-65) supported by French state funds managed by the ANR within the Investissements d’Avenir programme under reference ANR-11-IDEX-0004-02.


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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Sébastien Lefort
    • 1
    Email author
  • Marie-Jeanne Lesot
    • 1
  • Elisabetta Zibetti
    • 2
  • Charles Tijus
    • 2
  • Marcin Detyniecki
    • 1
    • 3
  1. 1.Sorbonne Universités, UPMC Univ Paris 06, CNRS, LIP6 UMR 7606ParisFrance
  2. 2.Laboratoire CHArt-LUTIN, EA 4004, Université Paris 8Saint-Denis - Cedex 02France
  3. 3.Polish Academy of Sciences, IBS PANWarsawPoland

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