Applied Statistics And Modelling ASAM Group

07/01/2025

🌟 Thrilled to Announce Our Latest Publication! 🌟

The ASAM group is delighted to share that the paper, “Generalisation of the Signed Distance”, co-authored by Dr. Rédina Berkachy and Prof. Laurent Donzé, has been published in the journal Mathematics (MDPI). This milestone concludes 2024 on a high note! 🎉

📚 What’s it about?
This work addresses limitations in the widely used signed distance metric for fuzzy numbers. We propose two novel generalizations:
- Balanced Signed Distance (BSGD)
- Generalised Signed Distance (GSGD)
These metrics are designed to handle asymmetry, irregular shapes, and overlaps more effectively, offering enhanced precision in computational mathematics and fuzzy set theory.

📌 Why it matters:
The findings aim to advance applications in areas like decision-making systems, data analysis, and modelling uncertainty, opening the door to further innovation.

🔗 Read the full paper here: https://www.mdpi.com/3101816

Feel free to check the paper and to reach out...🥳
MDPI

This paper presents a comprehensive study of the signed distance metric for fuzzy numbers. Due to the property of directionality, this measure has been widely used. However, it has a main drawback in handling asymmetry and irregular shapes in fuzzy numbers. To overcome this rather bad feature, we in...

19/07/2024

The ASAM group is happy to announce that a new version of the R package of Dr. Rédina Berkachy and Prof. Dr. Laurent Donzé entitled “FuzzySTs: Fuzzy Statistical Tools” has been released.

The version 0.3 of the package is now available on CRAN:

https://cran.r-project.org/web/packages/FuzzySTs/index.html

The main goal of this package is to present various fuzzy statistical tools. It intends to provide an implementation of the theoretical and empirical approaches presented in the book entitled "The signed distance measure in fuzzy statistical analysis. Some theoretical, empirical and programming adva...

21/07/2023

We are happy to attend the 64th ISI World Statistics Congress in Ottawa, Canada. We have presented our paper entitled "A Fuzzy Confidence Interval To Test Equality Of Means. Application Based On The Survey Of Health, Ageing And Retirement In Europe (SHARE)” authored by Prof. Laurent Donzé and Dr. Rédina Berkachy. More information about this paper on this link:
https://www.isi2023.org/abstracts/submission/846/view/
Université de Fribourg - Universität Freiburg

10/03/2023

The Applied Statistics And Modelling ASAM Group is pleased to announce that the Working Paper "Clustering the Swiss Pension Register" written by Layal Lettry under the supervision of Prof. Dr. Laurent Donzé from the University of Fribourg is now online.

The anonymous data of the Swiss Pension Register (CCO/FSIO) (PR) are typically used to estimate (in the short, middle and long term) the future revenues and expenditures of the Old-Age and Survivors’ Insurance (OASI). In this perspective, it is essential to have a clear look at the register’s main statistical features. To better understand it and benefit more from its richness, the raw data are analysed by an appropriate clustering method.

The working paper can be found on this link: https://lnkd.in/e3na2SPW

The SONAR project aims to create a scholarly archive that collects, promotes and preserves the publications of authors affiliated with Swiss public research institutions.

19/07/2022

The Applied Statistics And Modelling ASAM Group is very honoured to announce that the latest research on Fuzzy Statistics at the Université de Fribourg - Universität Freiburg of Dr. Rédina Berkachy and Prof. Laurent Donzé presented in the open-access paper “Fuzzy Confidence Intervals by the Likelihood Ratio: Testing Equality of Means - Application on Swiss SILC Data” is now published in SN Computer Science Journal with Springer Nature.

Read and share here: https://rdcu.be/cRZjt

11/01/2022

A happy new year from the ASAM group to the Statistics community!

We are happy to end 2021 with successful projects such as the one recently closed with the S&L Consulting company. The topic of "Petroleum and Statistics" was our interest.

All the best for a wonderful new year 2022.

19/05/2021

The ASAM group is very happy and proud to announce that the new book of Dr. Rédina Berkachy entitled "The Signed Distance Measure in Fuzzy Statistical Analysis" is officially launched at Springer Nature.

Do not hesitate to follow this link to take a look!

P.S: Hard copies will be available soon...

This book presents advanced methods of fuzzy statistics focusing on the signed distance measure in fuzzy statistical analysis....

22/09/2020

En date du 21 septembre 2020, lors de son assemblée générale, le conseil de professeurs de la Faculté des Sciences Economiques et Sociales et du Management, a officiellement accepté la thèse de doctorat de notre collègue Rédina, en lui attribuant la mention "summa cm laude", i.e. Excellent.

Félicitations à notre nouvelle DR. et tout le meilleur pour la suite de son parcours!

10/09/2020

We are so happy to announce that our colleague Martina has just defended her PhD thesis entitled « Mediation Analysis for Binary Random Variables Parametric Decomposition of the Total Effect» at the University of Fribourg under the supervision of Prof. Kilian Stoffel and Prof. Laurent Donzé. She had excellently discussed her advances with the jury. We are very happy for this new achievement, and we hope all the success for our colleague...

17/07/2020

We are so happy to announce that Rédina has defended her PhD thesis entitled « The signed distance measure in fuzzy statistical analysis. Some theoretical, empirical and programming advances » few days ago. Her talk was excellent, and the audience was very interested in the topic. She had brilliantly discussed her advances with the international jury impressed by her work. The jury decided to propose a « summa cm laude » for her grade on her PhD Thesis.

We are very happy for this new achievement, and we hope all the success for our colleague...

13/05/2020

Vous avez terminé avec succès votre Master avec une direction marquée en statistique et/ou en mathématique? Vous disposez de solides connaissances en méthodes quantitatives et en programmation? Vous parlez l’allemand ou le français, en plus de l’anglais?

Si oui, nous vous proposons un poste d’assistant-e à pourvoir en statistique appliquée dans notre équipe. Vous serez à même de s’adapter au domaine de recherche de notre groupe qui fait partie du Département interfacultaire d’informatique (Faculté des sciences et de médecine et Faculté des sciences économiques et sociales et du management).

Si vous êtes intéressé-e-s, adressez vous par courriel au professeur : [email protected] jusqu’au 15 juin 2020, avec un curriculum vitae succinct, une lettre de motivation et quelques références. Voir l'offre sur le site du groupe ASAM https://www3.unifr.ch/inf/asam/fr/