S2 Research Group • Vrije Universiteit Amsterdam https://s2-group.github.io/ Event Summary On October 7, the Green Hackathon was hosted as part of the Green Lab course in the Master of Computer Science program. Students participated actively, sharing innovative sustainability ideas and engaging in thoughtful discussions. The event fostered collaboration, creativity, and an inspiring atmosphere centered around green software innovation.... Tue, 07 Oct 2025 00:00:00 -0400 https://s2-group.github.io/2025-10-07-green-hackathon/ https://s2-group.github.io/2025-10-07-green-hackathon/ We are proud to announce that Ilias Gerostathopoulos, a valued member of our research group, was honored with the Best Reviewer Award at the European Conference on Software Architecture (ECSA 2025), held in Limassol, Cyprus, from 15 Sep to 19 Sep, 2025. This recognition was awarded ex aequo, shared with... Tue, 23 Sep 2025 00:00:00 -0400 https://s2-group.github.io/2025-09-23-ecsa-2025-best-reviewer/ https://s2-group.github.io/2025-09-23-ecsa-2025-best-reviewer/ Generating Energy-Efficient Code via Large-Language Models -- Where are we now? - We are excited to announce that a paper by S2 members and their colleagues has been accepted at International Conference on Software Engineering (ICSE) 2026, one of the premier conferences in software engineering research! Title: Generating Energy-Efficient Code via Large-Language Models – Where are we now? Authors: Radu Apsan, Vincenzo... Tue, 23 Sep 2025 00:00:00 -0400 https://s2-group.github.io/2025-09-23-ICSE-paper-2026/ https://s2-group.github.io/2025-09-23-ICSE-paper-2026/ The InnoGuard project, a European Union initiative funded through the MSCA Doctoral Networks, is dedicated to advancing Accountable Cyber-Physical Systems (ACPS). As part of its ongoing commitment to excellence in research and collaboration, the project recently held its 2025 InnoGuard Summer School, hosted at Simula in Oslo. This week-long programme... Fri, 18 Jul 2025 00:00:00 -0400 https://s2-group.github.io/2025-07-18-innoguard-summer-school/ https://s2-group.github.io/2025-07-18-innoguard-summer-school/ Software Sustainability and its Engineering: How Far Have We Come? Prof. Dr. Patricia Lago was invited to deliver a keynote address titled “Software Sustainability and its Engineering: How Far Have We Come?” at the International Conference on Software Engineering (ICSE) 2025, held in Ottawa Canada. Recognized for her leadership in... Thu, 05 Jun 2025 00:00:00 -0400 https://s2-group.github.io/2025-06-05-ICSE2025-Keynote-PLago/ https://s2-group.github.io/2025-06-05-ICSE2025-Keynote-PLago/ We’re proud to share that Patricia Lago has been honored with the ICSA 2025 Diversity and Inclusion Award at the 22nd IEEE International Conference on Software Architecture ICSA (ICSA 2025) held in Odense, Denmark. This prestigious award recognizes her outstanding and sustained leadership in advancing diversity and fostering an inclusive... Mon, 07 Apr 2025 00:00:00 -0400 https://s2-group.github.io/2025-04-07-diversity-and-inclusion-award-icsa2025-plago/ https://s2-group.github.io/2025-04-07-diversity-and-inclusion-award-icsa2025-plago/ We are happy to announce that our paper titled “Development and Evaluation of a Reference Measurement Model for Assessing the Resource and Energy Efficiency of Software Products and Components—Green Software Measurement Model (GSMM)” has been selected as the Spring 2025 Editor’s Choice Paper at the Future Generations of Computer Systems... Mon, 24 Mar 2025 00:00:00 -0400 https://s2-group.github.io/2025-03-24-gssm-paper-editors-choice/ https://s2-group.github.io/2025-03-24-gssm-paper-editors-choice/ Title: Test selection at Adyen Where: NU-3A67 When: Tuesday March 18, 11:00 Speaker: Mauricio Aniche Abstract If you work on a large-scale software system, odds are that a significant part of your build goes to test execution. It so often happens that you change one line of code but you... Mon, 17 Mar 2025 00:00:00 -0400 https://s2-group.github.io/2025-03-17-research-seminar-by-Mauricio-Aniche/ https://s2-group.github.io/2025-03-17-research-seminar-by-Mauricio-Aniche/ Seminar: A Journey Through Android App Analysis Join us for an insightful seminar by Prof. Jacques Klein, full professor in Software Engineering and Software Security at the University of Luxembourg. Prof. Klein has been at the forefront of Android apps analysis for several years, and this talk will provide a... Mon, 10 Feb 2025 00:00:00 -0500 https://s2-group.github.io/2025-02-10-seminar-by-jacques-klein/ https://s2-group.github.io/2025-02-10-seminar-by-jacques-klein/ The Software and Sustainability (S2) Research Group invites applications for two open positions at the Assistant/Associate Professor level, specializing in Software Architecture and Software Engineering. Are you an energetic researcher in software architecture, software engineering or related fields, and do you want to contribute to shaping the future of software... Tue, 10 Dec 2024 00:00:00 -0500 https://s2-group.github.io/2024-12-10-2-assitant-associate-professor-posiitons-in-software-architecture-and-engineering/ https://s2-group.github.io/2024-12-10-2-assitant-associate-professor-posiitons-in-software-architecture-and-engineering/ Imagine a world where you make a conscious choice every time you upload a file to the Cloud towards a greener planet. That’s the ambitious vision behind the Think Before You Save project by Adam Bouafia, a student of the 2024/2025 edition of the Green Lab course who is attending... Thu, 05 Dec 2024 00:00:00 -0500 https://s2-group.github.io/2024-12-05-think-before/ https://s2-group.github.io/2024-12-05-think-before/ Eloise Zhang, graduated in the Master Computer Science and supervised by Justus Bogner and Patricia Lago (Vrije Universiteit Amsterdam), is the winner of the 2nd prize of the KHMW Young Talent graduation prizes for computer science and information science 2024. Eloise did her thesis on the footprint of architecture tactics... Wed, 04 Dec 2024 00:00:00 -0500 https://s2-group.github.io/2024-12-04-zhang/ https://s2-group.github.io/2024-12-04-zhang/ The S2 research group has been honored with several prestigious awards at the 18th European Conference on Software Architecture (ECSA 2024) held in Luxembourg. These accolades recognize the group’s outstanding contributions to software architecture research and the quality of their work in various domains. Below is a summary of the... Mon, 09 Sep 2024 00:00:00 -0400 https://s2-group.github.io/2024-09-09-ECSA2024-awards/ https://s2-group.github.io/2024-09-09-ECSA2024-awards/ At this year’s Requirements Engineering (RE) Conference, held in Reykjavik, Iceland, the Most Influential Paper Award was presented to Emitza Guzman (VU Amsterdam) and Walid Maalej (University of Hamburg) for their paper titled, titled How Do Users Like This Feature? A Fine-Grained Sentiment Analysis of App Reviews. The award celebrates... Fri, 28 Jun 2024 00:00:00 -0400 https://s2-group.github.io/2024-06-28-RE-most-influential-paper/ https://s2-group.github.io/2024-06-28-RE-most-influential-paper/ Christos Petalotis won the first place in the VERSEN Master Thesis Award. Congrats Christos! His thesis is titled “A First Investigation Into the Detection of Energy-related Issues in Microservice-based Systems via Anomaly Detection and Root-Cause Analysis” and it was carried out under the supervision of Ivano Malavolta. The work has... Tue, 25 Jun 2024 00:00:00 -0400 https://s2-group.github.io/2024-06-25-christos-petalotis-award/ https://s2-group.github.io/2024-06-25-christos-petalotis-award/ The Dutch Prize for ICT Research 2024 has been awarded to Ivano Malavolta. In an era in which robotisation is flourishing in the high-tech industry and autonomous robots, such as self-driving cars and drones, are on the rise, energy consumption in these systems is becoming a crucial design consideration, including... Tue, 23 Jan 2024 00:00:00 -0500 https://s2-group.github.io/2024-01-23-ivano-ict-research-award-2024/ https://s2-group.github.io/2024-01-23-ivano-ict-research-award-2024/ Ivano Malavolta (VU Amsterdam) has been awarded with the Best Reviewer Award at the 20th International Conference on Software Architecture (ICSA 2023). ICSA is the premier venue for practitioners and researchers interested in software architecture, in component-based software engineering and in quality aspects of software and how these relate to... Tue, 04 Apr 2023 00:00:00 -0400 https://s2-group.github.io/2023-04-04-ivano-reviewer-award/ https://s2-group.github.io/2023-04-04-ivano-reviewer-award/ The paper “DEECO: An Ensemble-Based Component System” won the Most Influential Paper at the 20th IEEE International Conference on Software Architecture, the premier conference on Software Architecture. The study is available here and it has been conducted in 2013 by: Tomas Bures, Ilias Gerostathopoulos (VU Amsterdam), Petr Hnetynka, Jaroslav Keznikl,... Tue, 04 Apr 2023 00:00:00 -0400 https://s2-group.github.io/2023-04-04-ilias-impact-paper/ https://s2-group.github.io/2023-04-04-ilias-impact-paper/ The IEEE Computer Society Technical Council on Software Engineering (TCSE) decided to award the TCSE New Directions Award to prof. Patricia Lago (VU). This award is in recognition of prof. Lago’s pioneering work in sustainable software where new dimensions of software engineering with enormous impact on society–such as e-waste and... Thu, 30 Mar 2023 00:00:00 -0400 https://s2-group.github.io/2023-03-30-lago-tcse/ https://s2-group.github.io/2023-03-30-lago-tcse/ Patricia Lago (VU) professor of software engineering at S2 group, has been honored by the Board of the Norwegian University of Science and Technology (NTNU) with the degree of Doctor Honoris Causa. NTNU recognizes Lago’s scientific work over the years establishing the notion of sustainability in software architecture and in... Wed, 01 Feb 2023 00:00:00 -0500 https://s2-group.github.io/2023-02-01-lago-doctorate/ https://s2-group.github.io/2023-02-01-lago-doctorate/