Papers
2026
Why Measuring AI Environmental Impact of Organisations is Non-Trivial?
Loïc Guibert, David Bekri, Louise Aubet, Steve Berberat, Sébastien Rumley.
2026.03.25, AI-Days 2026: Proceedings of the Fourth Swiss AI Days @ Fribourg, Switzerland. pp. 67 - 81. [link]
Benchmarking Time Series Foundation Models on their Accuracy and Energy Consumption
Loïc Guibert, Benjamin Pasquier, Frédéric Montet, Beat Wolf.
2026.03.24, AI-Days 2026: Proceedings of the Fourth Swiss AI Days @ Fribourg, Switzerland. pp. 46 - 55. [link]
2025
Impact of a carbon tax on the total life cycle cost of servers
Loïc Guibert, Olivier Weppe, Sébastien Rumley.
2025.12.16, END'25: Symposium 2025 pour l'électronique et le numérique durables @ Grenoble, France. pp. 46 - 55. [link]
Carbon Topography Representation: Improving Impacts of Data Center Lifecycle
Olivier Weppe, David Bekri, Thibaut Marty, Loïc Guibert, Louise Aubet, Jean-Christophe Prévotet, Maxime Pelcat, Sébastien Rumley.
2025.08.06, ACM SIGENERGY Energy Informatics Review @ Cambridge, MA, USA. pp. 41 - 47. [DOI] [link]
TRAFFIC: Testbed foR Assessing energy eFFiciency In throughput Computing
Loïc Guibert, Sébastien Reynaud, Olivier Weppe, Kristjon Ciko, Michael Welzl, Sébastien Rumley.
2025.07.06, CF '25 Companion: Proceedings of the 22nd ACM International Conference on Computing Frontiers @ Cagliari, Italy. pp. 99 - 107. [DOI] [link]
Posters
2025
Impact d'une taxe carbone sur le coût total du cycle de vie de serveurs
Loïc Guibert, Olivier Weppe, Sébastien Rumley.
2025.12.16, END'25: Symposium 2025 pour l'électronique et le numérique durables @ Grenoble, France. [link]
2024
Hestia : une plateforme intelligente d'échange de données médicales
Loïc Guibert, Pascal Bruegger.
2024.02.06, AI-Days @ Lausanne, Switzerland.
Projects
2025
Open Research Data - Open-Source Kit
Development of an Open-Source Kit to facilitate the publication of research software as open source at HES-SO, with a real-case implementation.
- Role(s)
- Academic associate
- Keywords
- Open source, Research Data
- Duration
- 3 months
- Teachers
- Sébastien Rumley
- Funding
- HES-SO
EyeTek prototyping
This project aims to develop a REST service allowing to classify documents into categories and to extract their entities using large language models (LLMs).
- Role(s)
- Academic associate, developer
- Keywords
- LLMs, Software development, Document classification
- Duration
- 2 months
- Teachers
- Sébastien Rumley
- Funding
- Swiss AI Center
2024
Assessment of the Environmental Impacts of AI in Businesses (EIAEAE)
The EIAEAE project aims to develop a method enabling companies to assess the harmful impacts caused by their use of artificial intelligence.
- Role(s)
- Academic associate
- Keywords
- Sustainable AI, Green Computing, Energy Consumption
- Duration
- 10 months
- Teachers
- Sébastien Rumley
- Funding
- HES-SO
- Link
- [link]
Hestia - Interdisciplinary project (Swissuniversities)
A collaborative project between technical and management schools to support entrepreneurship.
- Role(s)
- Academic associate, Coordinator
- Keywords
- Entrepreneurship, Market analysis, Market study, Sales management
- Duration
- 1 year
- Teachers
- Pascal Bruegger
- Funding
- HES-SO
2023
Hestia - Smart Medical Assistance System
Hestia brings technological resources within nursing homes, personal homes or protected apartment in order to improve the life comfort of vulnerable people and the working conditions of their medical staff.
- Role(s)
- Academic associate, Technical coordinator, Developer
- Keywords
- Healthcare Assistance, Digital Health Solutions, Data Security & Privacy Protection, Swiss Healthcare System, Mobile Applications
- Teachers
- Pascal Bruegger
- Funding
- Nouvelle Politique Régionale (NPR), Fribourg Canton, HES-SO
- Link
- [link]
2022
Resident Monitoring System (RMS)
RMS brings technological resources within nursing homes, personal homes or protected apartment in order to improve the life comfort of vulnerable people and the working conditions of their medical staff.
- Role(s)
- Academic associate, Student
- Keywords
- Health Assistance, Mobile Applications, Smart Ecosystem, Machine Learning
- Duration
- 5 years
- Teachers
- Pascal Bruegger
- Funding
- HES-SO
- Link
- [link]
Lectures
2023-2024
Semestrial project 4
This lecture compots minimal theorical lectures, and focuses on practical work. Groups of students will learn how to develop web clients, mobile applications, and backends using modern frameworks and tools. Communication and organisation skills are also covered and evaluated alongside the technical skills.
- Curriculum
- Bachelor in Computer Science
- Teachers
- Pascal Bruegger, Sandy Ingam, Michael Mäder
- School
- School of Engineering and Architecture of Fribourg
Advanced Mobile Applications
This module allows students to develop their knowledge of multi-platform and cross-platform mobile application development (Android and iOS) in terms of both logic and graphical interfaces. Using platforms such as Flutter, Xamarin and Ionic, students become familiar with best practices in mobile development. As part of a mini-project, students work on both the logic of the app and the creation and design of user-friendly graphical interfaces, applying the concepts of user experience and testing learned in class.
- Curriculum
- Master in Computer Science
- Teachers
- Pascal Bruegger, Aïcha Rizzotti
- School
- HES-SO Master
- Link
- [link]
2021-2022
Semestrial project 4
This lecture compots minimal theorical lectures, and focuses on practical work. Groups of students will learn how to develop web clients, mobile applications, and backends using modern frameworks and tools. Communication and organisation skills are also covered and evaluated alongside the technical skills.
- Curriculum
- Bachelor in Computer Science
- Teachers
- Pascal Bruegger, Sandy Ingam, Michael Mäder
- School
- School of Engineering and Architecture of Fribourg
2020-2021
Mobile applications 1
This lecture covers the fundamentals of mobile application development, focusing on the Android system. Students will learn about user interface design, data management, and integration with backend services. Practical sessions will involve building a complete mobile application from scratch, applying best practices in coding, testing, and deployment.
- Curriculum
- Bachelor in Computer Science
- Teachers
- Pascal Bruegger
- School
- School of Engineering and Architecture of Fribourg
Cross-platform Mobile applications
This lecture extend knowledge aquired on Android developemnt given a semester before. iOS developpment basics are covered, in order to then teach about cross-platform frameworks. A large space is given on practical works.
- Curriculum
- Bachelor in Computer Science
- Teachers
- Pascal Bruegger
- School
- School of Engineering and Architecture of Fribourg
Supervisions
2026
Improving TRAFFIC
This project transformed TRAFFIC from a bloated 83,000-line monolith into a sleek, plugin-based architecture that slashed the codebase by over 95% while automating complex deployments. Version 2.0 makes measuring data center energy consumption significantly more extensible and user-friendly without compromising performance or accuracy. It's essentially a high-performance "diet" for a tool that was previously weighing itself down with massive technical debt.
- Type
- Bachelor thesis
- Teachers
- Sébastien Rumley
- School
- School of Engineering and Architecture of Fribourg
- Duration
- 8 weeks
DOCSTREAM : Document Structure And Content Recognition From Efficient AI Models
This thesis investigates the trade-off between accuracy and energy consumption in open-source Document AI solutions. Key findings reveal no direct correlation between energy usage and performance, challenging traditional scaling laws. The study identifies PaddleOCR VL expert models as optimal for complex documents and Vision Language Models as the most sustainable architecture. To assist users, the thesis concludes by proposing a decision tree for selecting the best Document AI solution based on specific requirements.
- Type
- Master thesis
- Teachers
- Jean Hennebert, Beat Wolf
- School
- HES-SO Master MSE
- Duration
- 1 semester
Integration of AI into Hestia, a home medical monitoring platform
This study assesses integrating AI into Hestia, a home medical monitoring platform using physiological time series. Experiments revealed moderate performance and insufficient recall due to measurement limitations, making immediate clinical use infeasible. Nevertheless, the research concludes that AI integration remains plausible provided robust data and reliable clinical labels are available.
- Type
- Semester project
- Teachers
- Pascal Bruegger
- School
- School of Engineering and Architecture of Fribourg
- Duration
- 1 semester
2024
Hestia ECG - Retrieving electrocardiograms on a mobile application using a sensor
This project focuses on integrating ECG (electrocardiogram) monitoring into the Hestia platform, a digital health ecosystem that streamlines medical data sharing between patients and doctors, to enhance the detection and management of cardiac conditions like arrhythmias and myocardial inflammation.
- Type
- Bachelor thesis
- Teachers
- Pascal Bruegger
- School
- School of Engineering and Architecture of Fribourg
- Duration
- 8 weeks
PMA Health - Integration of smartwatches for physiological data collection
This student project focuses on developing a module for the Hestia platform to automate the direct transfer of physiological data from various smartwatches to doctors, providing a seamless monitoring solution that functions autonomously without depending on third-party manufacturer apps.
- Type
- Semester project
- Teachers
- Pascal Bruegger
- School
- School of Engineering and Architecture of Fribourg
- Duration
- 1 semester
2021
HMMA 2 - Health Monitoring Mobile Application
This project addresses the challenges of elderly home care and overwhelmed medical facilities by leveraging technologies to improve medical response times and provides a monitoring platform suitable for healthcare professionals, families, and athletes.
- Type
- Bachelor thesis
- Teachers
- Pascal Bruegger
- School
- School of Engineering and Architecture of Fribourg
- Duration
- 8 weeks
Dutine
Dutine is a cross-platform mobile application designed to address the challenges of tracking repetitive tasks and maintaining long-term user motivation. By implementing a gamified system where 'givers' assign tasks and 'receivers' earn real-life rewards or face punishments, the project moves beyond traditional virtual badges to impact the user's daily life. Developed using Flutter and Firebase, the thesis covers the entire software development lifecycle, including a comprehensive analysis of user needs, competitor products, and gamification principles, culminating in a functional app successfully deployed on both the App Store and Play Store.
- Type
- Bachelor thesis
- Teachers
- Pascal Bruegger
- School
- School of Engineering and Architecture of Fribourg
- Duration
- 8 weeks
Web Agenda - online appointment booking
This project involves the improvement and securisation of a web-based appointment booking system integrated with existing management software, on the basis of a proof of concept developed during a previous semester project.
- Type
- Bachelor thesis
- Teachers
- Pascal Bruegger
- School
- School of Engineering and Architecture of Fribourg
- Duration
- 8 weeks
Online appointment scheduling web calendar
This project aims to develop a secure, web-based calendar allowing physiotherapy patients to book and manage appointments online using a unique identification number.
- Type
- Semester project
- Teachers
- Pascal Bruegger
- School
- School of Engineering and Architecture of Fribourg
- Duration
- 1 semester
Email management interface with AWS SES
This project involves developing a cross-platform application for the SME PYME SNC that provides a user-friendly interface for sending and receiving emails via Amazon SES, bypassing the service's lack of native POP/IMAP support. The solution will feature an inbox, attachment handling, and real-time push notifications, all built on a scalable architecture designed for high-availability business use.
- Type
- Semester project
- Teachers
- Pascal Bruegger
- School
- School of Engineering and Architecture of Fribourg
- Duration
- 1 semester
Blood pressure and heart rate monitoring Mobile APP
The in-house RMMA application monitors patient vitals via a chest strap. To improve patient comfort, this project replaces chest straps with smartwatches by updating the RMMA application to collect and display heart rate, blood pressure, and accelerometer data via Bluetooth.
- Type
- Semester project
- Teachers
- Pascal Bruegger
- School
- School of Engineering and Architecture of Fribourg
- Duration
- 1 semester
Talks
2026
Impact of a carbon tax on the total lifecycle cost of servers (Workshop)
Loïc Guibert, Sébastien Rumley.
2026.03.25, AI-Days 2026: Proceedings of the Fourth Swiss AI Days @ Fribourg, Switzerland. [link]