05 Jan 2026
A paper accepted at MSR 2026
The paper “PoolinGH: Fast, Efficient, and Robust GitHub Repository Mining” has been accepted to
MSR 2026 in the Data and Tool Showcase track.
In this paper, we present PoolinGH, a lightweight, open-source, easy-to-use library, aimed at supporting researchers. It is designed to accelerate and ensure efficient and robust mining on the GitHub REST API while taking full advantage of its capabilities. It enables automatic pooling of multiple access tokens and parallelizes queries. It optimizes queues and regulates network and API usage for respecting GitHub’s limits and best practices. Error management and recovery or pruning in case of deadlocks are ensured. Search coverage maximization and progress monitoring are among the most useful features to avoid reinventing the wheel. We also provide solution templates that meet common needs for specific extensions of such library.
Maxime will present this paper with his co-authors mid-April 2026 in Rio de Janeiro (Brazil).
The paper was co-authored with researchers from the University of Zurich (Switzerland) and from the REVEAL research group of the Università della Svizzera italiana (USI) in Lugano (Switzerland). This collaboration is supported by the SofinaBoël Fund for Education and Talent.
03 Nov 2025
CNAM Researcher Patient Ntumba Wa Ntumba's 3-month visit to RAINDROP (UCLouvain)
We are pleased to announce that Dr. Patient Ntumba Wa Ntumba, a researcher from CNAM, France, is visiting our RAINDROP research group at UCLouvain for a period of three months, from November 2025 to January 2026. During his stay, Patient will collaborate closely with our team at UCLouvain on AI workload scheduling and adaptation on the edge.
07 Jul 2025
3 papers accepted at VISSOFT/ICSME 2025
The papers “Visualizing and Exploring Data Access in Microservices Using Interactive Treemaps” and
“Visualizing Data Access Traces in Microservices Using Animated Heat Treemaps” have been accepted to
VISSOFT 2025, respectively in the main and the NIER tracks.
For its part, the paper “DENIM: Exploring Data Access in Microservices” has been accepted to
ICSME 2025 in the Tool Demo track.
In these papers, we present visualization approaches and a tool to support the understanding of data access in
microservices architectures using interactive treemaps and heat treemaps.
The interactive treemap contributes in representing the data access code fragment of a microservice architecture in a
compact and efficient 2D space. It helps in identifying technology breakdown patterns, analyzing the impact of data
concept changes, comparing system versions to track evolution or refactoring scenarios, and highlighting particular
code patterns. This approach can be used to aid in decision-making for refactoring and evolution
strategies. We evaluated that approach on 10 non-trivial systems with 6 professional developers within 4 organizations
and obtained encouraging feedbacks that we discuss in the paper.
The heat treemap aims to extend, as an overlay, the interactive treemap with dynamic instrumentation traces. The
approach replays and draws the sequence of the calls using animations. It also colours the hotspots within the data
access code fragments in order to highlight the hotspots. Through an efficient UI, the traces can be further inspected.
This promising approach brings more concreteness to the decision-making process when it comes to evolution and
refactoring. We evaluated our approach on a case study: Overleaf. In a 6-days scenario, we collected more
than 109K traces to visualize.
The tool is the materialized artifact resulting of this research.
Maxime will present these papers with his co-authors early September 2025 in Auckland (New-Zeland).
The papers have been co-authored with researchers of the REVEAL
research group at Università della Svizzera italiana (USI) in
Lugano (Switzerland) where Maxime stayed 6 months. This collaboration is supported by the SofinaBoël Fund for Education and Talent. The paper about the
heat treemaps is the result of a collaboration with Maxime De Rycke, a master’s student from the University of Namur.
18 May 2025
Yinan presented the paper at CCGrid 2025
Yinan presented the paper “LASSY: a Latency-Aware SLOs-Sufficing Scheduling System for the Cloud/Edge Continuum” at CCGrid 2025 on May 21st 2025 in Tromso, Norway.
