Nicolas Cellier

Data Scientist & Research Engineer

Version PDF
contact@celliern.io celliern.io
Professional Experience

Data Scientist, R&D Team

Société IVèS (38)
2024-Today
  • Management of statistical analysis needs (implementation of necessary infrastructure, development and automation of ETL-type pipelines, data visualization through BI-type dashboards), with development of a decision-support tool for sizing and managing a telephone platform dedicated to accessibility for deaf and hard of hearing populations.
  • Exploratory and support role within the R&D team to evaluate, test, and prototype possible solutions, particularly for the text-to-sign language translator solution.

Research Engineer

Industrial Engineering Center, IMT Mines Albi (81)
2021-2024
  • Research Engineer dedicated to the ACDC project: improving call center scheduling for deaf and hard of hearing populations
  • Data collection, time series prediction, discrete event simulation, scheduling

Postdoctoral Researcher

LAMA / LOCIE Laboratories, USMB (73)
2018-2021
  • Development of models and numerical resolution tools for two parallel projects:
  • ANR FRAISE: Heat and mass transfer through a falling film.
  • European OPTIWIND Project: Simulation of flow and icing of droplets on aircraft windshields
Education

Doctorat

2014-2018
Laboratoire LOCIE, Université de Savoie Mont-Blanc (73)
Optimisation d'échangeurs de chaleur à film ruisselant.
Directeur de thèse: C. Ruyer-Quil

Études d'ingénierie, génie des procédés

2009-2014
Université de Technologie de Compiègne (60)
Freelance Projects

Aide au développement de code paramétrique EnergyPlus

2025
CAELI Energie

Développement d'un code de résolution de PDE

2024
ColibrITD

Consolidation et optimisation d'une librairie scientifique

2023
LOCIE
Skills

Programming Languages

Python

Julia

Rust

JavaScript/TypeScript

SQL

Tools & Frameworks

Development & Ops

Git, Linux, Docker, k8s (via k3s), Gitlab CI / Github Actions, Gitops via FluxCD

Frontend & Documentation

Svelte / Sveltekit, LaTeX, Pandoc, Quarto

Scientific Skills

Data Science & Machine Learning

Machine learning, Time series prediction, Relational databases (PostgreSQL / SQLite...) and NoSQL (mongodb / redis), ETL

Modeling & Numerical Simulation

Partial differential equations, Dynamic systems, Discrete event simulation, High-performance computing, Linear / non-linear optimization, Numerical methods
Languages

English

Fluent

French

Native
Publications

Articles

Machine learning-based agent staffing under uncertainty: The case of a relay call center
10.1016/j.eswa.2025.127385
Samer Alsamadi ,  Cléa Martinez ,  Canan Pehlivan ,  Nicolas Cellier ,  Oualid Jouini ,  Yiping Fang ,  Benjamin Legros ,  Franck Fontanili  
2025
A simulation based digital twin approach to assessing the organization of response to emergency calls
10.1038/s41746-024-01392-2
Yann Penverne ,  Clea Martinez ,  Nicolas Cellier ,  Canan Pehlivan ,  Joel Jenvrin ,  Dominique Savary ,  Valerie Debierre ,  Florence Deciron ,  Anis Bichri ,  Quentin Lebastard ,  Emmanuel Montassier ,  Brice Leclere ,  Franck Fontanili  
2024
A systematic approach to classify and characterize genomic islands driven by conjugative mobility using protein signatures
10.1093/nar/gkad644
Audrey Bioteau ,  Nicolas Cellier ,  Frédérique White ,  Pierre-Étienne Jacques ,  Vincent Burrus  
2023
Sliding and merging of strongly sheared droplets
10.1017/jfm.2023.726
Christian Ruyer-Quil ,  D Bresch ,  M Gisclon ,  G L Richard ,  M Kessar ,  Nicolas Cellier  
2023
Long-wave instabilities of evaporating/condensing viscous film flowing down a wavy inclined wall: Interfacial phase change effect of uniform layers
10.1063/5.0089068
Sanghasri Mukhopadhyay ,  Nicolas Cellier ,  Asim Mukhopadhyay  
2022
Thermodynamic analysis in laminar falling film evaporator
10.1016/j.applthermaleng.2022.118814
Arnat Mahamoudou ,  Julien Ramousse ,  Nicolas Cellier ,  Nolwenn Le Pierrès  
2022
Integration of phasing on multi-objective optimization of building stock energy retrofit
10.1016/j.enbuild.2021.111776
Yannis Merlet ,  Simon Rouchier ,  Arnaud JAY ,  Nicolas Cellier ,  Monika Woloszyn  
2022
Falling film on an anisotropic porous medium
10.1017/jfm.2022.634
Sanghasri Mukhopadhyay ,  Nicolas Cellier ,  Usha R ,  Marx Chhay ,  Christian Ruyer-Quil  
2022
Influence of weather natural variability on the thermal characterisation of a building envelope
10.1016/j.apenergy.2021.116582
Sarah Juricic ,  Jeanne Goffart ,  Simon Rouchier ,  Aurélie Foucquier ,  Nicolas Cellier ,  Gilles Fraisse  
2021
A new family of reduced models for non-isothermal falling films
10.1016/j.ijheatmasstransfer.2020.119700
Nicolas Cellier ,  Christian Ruyer-Quil  
2020
Augmented Skew-Symetric System for Shallow-Water System with Surface Tension Allowing Large Gradient of Density
10.1016/j.jcp.2020.109670
Didier Bresch ,  Nicolas Cellier ,  Frédéric Couderc ,  Marguerite Gisclon ,  Pascal Noble ,  Gaël Loïc Richard ,  Christian Ruyer-Quil ,  Jean-Paul Vila  
2020
scikit-finite-diff, a new tool for PDE solving
10.21105/joss.01356
Nicolas Cellier ,  Christian Ruyer-Quil  
2019

Conférences

Towards training network resilience to maintain disaster recovery expertise
hal-04593752
Paul Savignac ,  Christopher Zobel ,  Eva Petitdemange ,  Nicolas Cellier ,  Robert Weiss ,  Matthieu Lauras  
2024
Utilisation de l'apprentissage automatique pour prédire la qualité de service d'un centre d'appels-relais pour sourds et malentendants selon sa dotation en agents
hal-04693010
Samer Alsamadi ,  Clea Martinez ,  Canan Pehlivan ,  Franck Fontanili  
2024
Call center agent scheduling evaluation using discrete-event simulation : a decision-support tool
10.1109/WSC57314.2022.10015262
Samer Alsamadi ,  Clea Martinez ,  Canan Pehlivan ,  Nicolas Cellier ,  Franck Fontanili  
2022
Forecasting Daily Call Arrivals Within an Inbound Call Center
hal-04742044
Samer Alsamadi ,  Clea Martinez ,  Canan Pehlivan ,  Nicolas Cellier ,  Franck Fontanili  
2023
Prédiction de l'arrivée des appels dans un centre relais pour sourds et malentendants
hal-03763612
Samer Alsamadi ,  Farhat Malek ,  Nicolas Cellier ,  Clea Martinez ,  Canan Pehlivan ,  Franck Fontanili  
2022
Performance Evaluation and Statistical Data Analysis of a Call Center for the Deaf Community
10.1109/AICCSA53542.2021.9686901
Seyda Alperen Pehlivan ,  Canan Pehlivan ,  Clea Martinez ,  Nicolas Cellier ,  Franck Fontanili ,  Elyes Lamine  
2021
Simulation de l'entraide entre deux SAMU pour la prise en charge des appels d'urgence
hal-03744611
Franck Fontanili ,  Nicolas Cellier ,  Clea Martinez ,  Yann Penverne ,  Maxime Lebeaupin ,  Nesrine Benaouicha  
2022
Wavelength impact on heat transfer into a falling film heat exchanger
hal-05006359
Julien Ramousse ,  Nicolas Cellier ,  Christian Ruyer-Quil  
2020
Transferts de chaleur au travers de films ruisselants
hal-03465749
Nicolas Cellier ,  Christian Ruyer-Quil ,  Philippe Bandelier ,  Nadia Caney ,  Benoit Stutz  
2017