- ENOG - Euro

ROADEF/EURO 2026 Challenge
by yannick.carlinet＠orange.com 24 Mar '26

24 Mar '26

Dear colleagues, We are thrilled to announce that the ROADEF/EURO 2026 Challenge is officially open! This year's edition, titled "Keep the Flow!", focuses on the optimization problem of T-Adaptive Segment Routing (T-ASR). Proposed by Orange Research, the challenge invites participants to design efficient optimization algorithms for routing in large-scale telecommunication networks, taking into account scheduled maintenance interventions and reconfiguration budgets. Watch the official teaser for a quick overview of the problem: https://youtu.be/D1jubmosffI?si=tHLxgXFQkhauTjok Key resources already available: Detailed subject description: full technical specifications. Initial dataset (Set A, for the sprint phase): to begin testing your algorithms. Solution checker: a C++20 tool to validate your results. Networktools Library: A fast header-only C++20 library for modeling and solving network optimization problems. Prizes & Participation: The competition is endowed with a total prize pool of €35,000, with categories for best teams, junior researchers (students), and scientific contributions. Find all information regarding rules, organization, and the roadmap (Sprint, Qualification, and Final phases) at https://roadef.org/challenge/ We look forward to your innovative solutions and wish you the best of luck! Sincerely, The ROADEF challenge team: Zacharie Ales, Ronan Bocquillon, Eric Bourreau, Safia Kedad-Sidhoum, David Savourey. The Orange Research challenge team: Amal Benhamiche, Yannick Carlinet, Morgan Chopin, Éric Gourdin, Nancy Perrot. Orange Restricted ____________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration, Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci. This message and its attachments may contain confidential or privileged information that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and delete this message and its attachments. As emails may be altered, Orange is not liable for messages that have been modified, changed or falsified. Thank you.

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Call for abstracts (DEADLINE EXTENSION)- ECCO XXXIX-CO 2026 joint Conference on Combinatorial Optimization
by Luis Eduardo Neves Gouveia 14 Mar '26

14 Mar '26

Dear Colleagues, Due to numerous requests the deadline for submissions for the ECCO XXXIX - CO 2026 joint Conference on Combinatorial Optimization is extended to NEW Abstract submission deadline: March 28 , 2026 The CO XXXIX - CO 2026 joint Conference will take place on May 14-16, 2026 in Lisbon, Portugal. ECCO (the European Chapter on Combinatorial Optimization<https://en.wikipedia.org/wiki/European_Chapter_on_Combinatorial_Optimization>) is a Working Group of EURO (the Association of European Operational Research Societies<https://www.euro-online.org/web/pages/1/home>) that provides an excellent opportunity to discuss recent and important issues in Combinatorial Optimization and its applications. CO series of biennial symposia, the Combinatorial Optimization Conferences, started in the UK in 1977 with meeting venues alternated between the UK and continental Europe. Keynote speakers: William Cook, University of Waterloo Gabor Galambos, University of Szeged Joerg Kalcsics, University of Edinburgh Sergio Garcia Quiles, University of Edinburgh We invite researchers interested in the following areas to submit an abstract: * theory and applications of combinatorial optimization; * optimal solution methods, approximation algorithms and heuristics for combinatorial optimization problems; * integer programming, global optimization, stochastic integer programming, multi-objective programming, graph theory and network flows; * application domains include, but are not limited to: logistics and supply chain optimization, manufacturing, energy production and distribution, land consolidation, telecommunications, bioinformatics, finance. More details can be found at https://ecco2026.campus.ciencias.ulisboa.pt/ The Program Committee Chair Luis Gouveia

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PhD school on robust optimization in Porquerolles (France) - september 2026 - 2nd call
by Michaël Poss 08 Mar '26

08 Mar '26

Dear all This is the second call for the PhD school on robust optimization at IGESA in Porquerolles (https://maps.app.goo.gl/VismMQ5mrYzMPdDr5) on September 7-11 2026. The school will cover basics of static, adjustable, combinatorial robust optimization, as well as distributionally robust optimization, see the website https://ro2026.sciencesconf.org/?lang=en The cost of the school will be around 800€ for 4 nights (Monday - Friday), everything included. To apply to the school, please send a CV to poss(a)lirmm.fr, with topic « application to ROSCHOOL26 », no later than March 15th. Your CV should include : a description of your thesis topic and ongoing research a list of optimization classes that you have taken during your bachelor's, master's and/or doctoral studies Best, Michaël Poss

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Optimization 2023 - 1st Announcement
by Luis Eduardo Neves Gouveia 23 Feb '26

23 Feb '26

Optimization 2023 is the tenth edition of a series of Optimization international conferences held every three years, in Portugal. This meeting will be held at the University of Aveiro , July 24-26, 2023, and aims to bring together researchers and practitioners with common interests in optimization. This conference series has international recognition and is being organized under the auspices of APDIO (the Portuguese Operations Research Society). Plenary speakers: Miguel Anjos | University of Edinburgh Jacques Desrosiers | HEC Montréal Mirjam Dür| University of Augsburg Ivana Ljubic | ESSEC Business School of Paris Melvyn Sim | National University of Singapore Marc Teboulle | Tel Aviv University Abstract submission deadline: 30 April 2023 For additional information: https://optimization2023.web.ua.pt/ We look forward to meeting you in Optimization 2023, Agostinho Agra and Luis Gouveia

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CFP - MIC 2026 - 16th Metaheuristics International Conference
by Bernard Fortz 10 Feb '26

10 Feb '26

*MIC 2026 - 16th Metaheuristics International Conference* 8 - 11 June, 2026 Ischia Island (Napoli), Italy www.mic2026.unina.it ********************* Submission deadline: February 27, 2026 Number of days to deadline: 21 ********************* Aims, Themes & Scope: As per tradition, looking at the previous editions of the MIC conferences, this conference focuses on the progress of the area of Metaheuristics and their applications and provides an opportunity to the international research community to discuss recent research results, to develop new ideas and collaborations, and to meet old friends and make new ones in relaxed atmosphere. MIC 2026 strives to propose a high-quality program that will be completed by a number of invited talks, tutorials, workshops and special sessions. Solicited contributions can cover a variety of topics including but not limited to: - Metaheuristic techniques such as tabu search, simulated annealing, iterated local search, variable neighborhood search, memory-based optimization, dynamic local search, evolutionary algorithms, memetic algorithms, ant colony optimization, particle swarm optimization, scatter search, path relinking, etc. - Techniques that enhance the usability and increase the potential of metaheuristic algorithms such as reactive search mechanisms for self-tuning, offline metaheuristic algorithm configuration techniques, algorithm portfolios, parallelization of metaheuristic algorithms, etc. - Empirical and theoretical research in metaheuristics including large-scale experimental analyses, algorithm comparisons, new experimental methodologies, engineering methodologies for metaheuristic algorithms, search space analysis, theoretical insights into properties of metaheuristic algorithms, etc. - High-impact applications of metaheuristics in fields such as bioinformatics, electrical and mechanical engineering, telecommunications, sustainability, business, scheduling and timetabling. Particularly welcome are innovative applications of metaheuristic algorithms that have a potential of pushing research frontiers. - Contributions on the combination of metaheuristic techniques with those from other areas, such as integer programming, constraint programming, machine learning, etc. - Contributions on the use of metaheuristic techniques in machine learning and deep learning for finetuning and neural architecture search, etc. - Challenging applications areas such as continuous, mixed discrete-continuous, multi-objective, stochastic, or dynamic problems. MIC 2026 accepts submissions in three different formats: 1. Regular paper: novel and original research contributions of a maximum of 15 pages (LNCS format) 2. Short paper: extended abstract of novel research works of 6 pages (LNCS format) 3. Oral presentation: one page abstract describing the content of an high-quality manuscript that has recently, within the last year, been submitted or accepted for journal publication. All submitted papers will undergo a review process. All papers must be prepared using Lecture Notes in Computer Science (LNCS) template, and must be submitted in PDF using the easychair system (https://easychair.org/conferences?conf=mic2026) Accepted papers in categories 1 and 2 will be published as post-proceedings in Lecture Notes in Computer Science series by Springer. In addition, a post-conference special issue in Journal of Heuristics will be considered for the significantly extended and revised versions of selected accepted papers from categories 1 and 2. IMPORTANT DATES: All deadlines are Anywhere on Earth (AoE = UTC-12h). - December 1, 2025, submission open/registration open - February 27, 2026, submission deadline - March 27, 2026, notification of acceptance - April 10, 2026, early registration deadline - June 8-11, 2026, conference at Ischia, Italy CONTACT INFORMATION: Paola Festa (E-mail: infomic2026(a)unina.it, paola.festa(a)unina.it) Dept. of Mathematics and Applications “R. Caccioppoli”, University of Napoli “Federico II”

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Last call for papers - International Network Optimization Conference 2026 (INOC2026)
by Bernard Fortz 28 Jan '26

28 Jan '26

Last days to submit! - Submission deadlines: Short paper submission deadline: January 30. Extended abstracts deadline: February 7. - Registration will open on Februry 14. We have the pleasure to announce our confirmed plenary speakers: - William Cook, University of Waterloo, Canada - Jannis Kurtz, University of Amsterdam, The Netherlands - Angelika Wiegele, Alpen-Adria-Universität Klagenfurt, Austria INOC 2026 - Call for Papers =========================== INOC 2026, the International Network Optimization Conference, provides a forum for researchers in the broad field of network optimization to present and publish their latest results and ongoing research. INOC is the conference of the European Network Optimization Group (ENOG), a working group of EURO, the Association of European Operational Research Societies. The aim of this conference is to provide conference of the European Network Optimization Group (ENOG), a working group of EURO. The conference has been held biennially since 2003, the latest in 2024 at the University College Dublin (Dublin, Ireland). INOC 2026 is the 12th conference of this group and will take place at HEC Liège, the Management School of Liège University, Liège, Belgium, April 22-24, 2026. Topics of Interest ------------------ INOC solicits contributions in the broad field of Network Optimization, from the areas of Mathematical Optimization, Operations Research, Artificial Intelligence and Graph Theory. Application-oriented network optimization from areas like Telecommunications, Routing, Smart Grids, and Logistics are most welcome. Topics include but are not restricted to: - AI and Machine Learning for Network Optimization - Algorithmic Game Theory on Networks - Approximation Algorithms - Combinatorial Optimization - Connectivity Problems - Graph Algorithms - Graph Theory - Heuristics and Meta-heuristics - Mixed Integer Linear Programming - Mixed Integer Nonlinear Optimization - Multi-objective Optimization - Multicommodity Flows - Network Design - Network Flows - Network Interdiction - Network Optimization - Network Reliability - Path and Tree Problems - Robust Optimization - Routing Algorithms - Smart Grids - Stochastic Networks - Supply Chain Network Optimization - Sustainable Mobility and Transportation - Telecommunication Networks - Transportation Networks - Vehicle Routing Submission Guidelines --------------------- INOC accepts both short papers to be published in the proceedings and extended abstracts to be published at the conference only: - Short papers describing original work, not yet published or submitted elsewhere. Short papers can be up to 6 pages (with two columns) long. - Extended abstracts describing recent results and ongoing research can be up to 2 pages long. All submissions must be formatted with the Latex templates provided and submitted to https://easychair.org/conferences/?conf=inoc2026. For short papers, please use the template and style files in https://www.euro-online.org/inoc2026/cfp/INOC_short_paper_template.zip. For extended abstracts, use the simple template in https://www.euro-online.org/inoc2026/cfp/INOC-ext-abstract-template.zip. Contributions will be peer-reviewed by the Programme Committee. The proceedings will be published at OpenProceedings. After the conference, extended papers can be submitted to a special issue of the journal Networks. Important Dates --------------- Short papers submission deadline January 30 Extended abstracts submission deadline Februray 7 Notification of acceptance - Short papers February 13 Notification of acceptance - Extended abstracts February 20 Registration deadline March 6 Final version of short papers deadline March 6 Conference April 22-24 Full paper for the special issue of Networks deadline July 31 Contact ------- You will find information about the conference and venue on the INOC 2026 webpage (https://www.euro-online.org/inoc2026/) If you don’t find the answer there, you can email your questions about INOC 2026 to inoc2026(a)euro-online.org. We look forward to seeing you in Liège!

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[daniele.vigo@unibo.it: EJTL]
by Bernard Fortz 14 Jan '26

14 Jan '26

----- Début du message transféré de Daniele Vigo <daniele.vigo(a)unibo.it> ----- From: Daniele Vigo <daniele.vigo(a)unibo.it> To: Daniele Vigo <daniele.vigo(a)unibo.it> CC: FEILLET Dominique <feillet(a)emse.fr>, Juan José Salazar González <jjsalaza(a)ull.edu.es>, "margaretha.gansterer(a)aau.at" <margaretha.gansterer(a)aau.at> Date: Wed, 14 Jan 2026 14:54:18 +0000 Subject: EJTL Message-ID: <07D64436-FDFB-49A8-9B4C-7509D0204FED(a)unibo.it> Dear EURO Working Group Coordinator, dear colleagues and friends, As you might know, since January 2026, I took the role of Editor-in-Chief of the EURO Journal on Transportation and Logistics (EJTL), one of the four thematic journals promoted by EURO. Thanks to the exceptional work done by my predecessors, Michel Bierlaire and Dominique Feillet (with their Editorial Boards), the journal has now established itself as a successful outlet in the Logistics and Transportation area with a very good ranking. In particular, since 2021, it has obtained an Impact Factor from Clarivate (currently 2.7), and is ranked Q2 or better in most databases (Scimago, Clarivate, Scopus …). These are impressive results for a journal which has about ten years of life, and I will do my best to keep the very high standard of the journal by promoting a careful selection of the papers to be published and achieving reasonably fast handling times. Furthermore, thanks to the support of EURO, all the journal papers are published in Open Access. EJTL, like the other EURO journals, are owned by EURO and not by a private company, which provides a guarantee of transparency and correct management to create a reliable instrument for disseminating scientific results. To guarantee the success of such an initiative, EURO and I strongly think that it is of paramount importance to create and continue a strong collaboration between the journals and the other EURO instruments, and in particular with EURO Working groups. EURO journals should indeed be seen as reference outlets for publishing the results of the high-quality research performed by the members of the EURO societies and working groups, as well as a dedicated vehicle to promote and diffuse their activities. I am writing to you as coordinators of important EURO Working groups whose research areas naturally overlap with the central topics of EJTL as a first step to initiate a fruitful future collaboration. I hope you will convey to your members the invitation to consider EJTL as a natural destination for their research related to Transportation and Logistics optimisation. Furthermore, I am fully open to discuss relevant editorial initiatives and suggestions which will further strengthen the visibility and reputation of EJTL: a result which will be clearly beneficial to all who will contribute to such a success. With my best wishes for a fruitful new year for you and the working groups you coordinate. Daniele P.S. I used the information on the working groups available in the EURO website so please forward this email to any person you think appropriate within the working group ---------------------------------------------------------------------------------------- Prof. Daniele Vigo ([1]google scholar lookup, [2]scopus lookup) Alma Mater Università di Bologna DEI - Dip. di Ingegneria dell'Energia Elettrica e dell'Informazione "Gugliemo Marconi” Bologna and Cesena (FC), Italy [3]https://www.unibo.it/sitoweb/daniele.vigo/en https://site.unibo.it/operations-research/en ----------------------------------------------------------------------------------------- References: [1] http://scholar.google.it/citations?user=2kk8d_AAAAAJ [2] https://www.scopus.com/authid/detail.uri?authorId=7004088556 [3] https://www.unibo.it/sitoweb/daniele.vigo/en ----- Fin du message transféré -----

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Deadline extended - International Network Optimization Conference 2026 (INOC2026)
by Bernard Fortz 14 Jan '26

14 Jan '26

- Deadlines extended: Short paper submission deadline: January 30. Extended abstracts deadline: February 7. - Registration will open on Februry 14. INOC 2026 - Call for Papers =========================== INOC 2026, the International Network Optimization Conference, provides a forum for researchers in the broad field of network optimization to present and publish their latest results and ongoing research. INOC is the conference of the European Network Optimization Group (ENOG), a working group of EURO, the Association of European Operational Research Societies. The aim of this conference is to provide conference of the European Network Optimization Group (ENOG), a working group of EURO. The conference has been held biennially since 2003, the latest in 2024 at the University College Dublin (Dublin, Ireland). INOC 2026 is the 12th conference of this group and will take place at HEC Liège, the Management School of Liège University, Liège, Belgium, April 22-24, 2026. Topics of Interest ------------------ INOC solicits contributions in the broad field of Network Optimization, from the areas of Mathematical Optimization, Operations Research, Artificial Intelligence and Graph Theory. Application-oriented network optimization from areas like Telecommunications, Routing, Smart Grids, and Logistics are most welcome. Topics include but are not restricted to: - AI and Machine Learning for Network Optimization - Algorithmic Game Theory on Networks - Approximation Algorithms - Combinatorial Optimization - Connectivity Problems - Graph Algorithms - Graph Theory - Heuristics and Meta-heuristics - Mixed Integer Linear Programming - Mixed Integer Nonlinear Optimization - Multi-objective Optimization - Multicommodity Flows - Network Design - Network Flows - Network Interdiction - Network Optimization - Network Reliability - Path and Tree Problems - Robust Optimization - Routing Algorithms - Smart Grids - Stochastic Networks - Supply Chain Network Optimization - Sustainable Mobility and Transportation - Telecommunication Networks - Transportation Networks - Vehicle Routing Submission Guidelines --------------------- INOC accepts both short papers to be published in the proceedings and extended abstracts to be published at the conference only: - Short papers describing original work, not yet published or submitted elsewhere. Short papers can be up to 6 pages (with two columns) long. - Extended abstracts describing recent results and ongoing research can be up to 2 pages long. All submissions must be formatted with the Latex templates provided and submitted to https://easychair.org/conferences/?conf=inoc2026. For short papers, please use the template and style files in https://www.euro-online.org/inoc2026/cfp/INOC_short_paper_template.zip. For extended abstracts, use the simple template in https://www.euro-online.org/inoc2026/cfp/INOC-ext-abstract-template.zip. Contributions will be peer-reviewed by the Programme Committee. The proceedings will be published at OpenProceedings. After the conference, extended papers can be submitted to a special issue of the journal Networks. Important Dates --------------- Short papers submission deadline January 30 Extended abstracts submission deadline Februray 7 Notification of acceptance - Short papers February 13 Notification of acceptance - Extended abstracts February 20 Registration deadline March 6 Final version of short papers deadline March 6 Conference April 22-24 Full paper for the special issue of Networks deadline July 31 Contact ------- You will find information about the conference and venue on the INOC 2026 webpage (https://www.euro-online.org/inoc2026/) If you don’t find the answer there, you can email your questions about INOC 2026 to inoc2026(a)euro-online.org. We look forward to seeing you in Liège!

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VeRoLog Doctoral Dissertation Prize 2026
by Kris BRAEKERS 07 Jan '26

07 Jan '26

Dear colleagues, VeRoLog, the EURO working group on Vehicle Routing and Logistics optimization, is organizing its 2026 doctoral dissertation prize. The prize is open to PhD theses in operations research for transportation and logistics that were defended between January 1, 2025 and December 31, 2025. The deadline for applying is February 28, 2026. Please find all application details in the attached file. Best regards, The VeRoLog DDP 2026 jury Kris Braekers, Tânia Ramos, Remy Spliet Prof. dr. Kris Braekers Hoogleraar - Professor Onderzoeksgroep Logistiek - Research Group Logistics T+32(0)11 26 91 20 <https://www.facebook.com/UHasseltBEW> <https://www.linkedin.com/company/log-uhasselt> <https://www.uhasselt.be/Research-group-Logistics> www.uhasselt.be/Research-group-Logistics Universiteit Hasselt - Campus Diepenbeek Agoralaan Gebouw D - B-3590 Diepenbeek Kantoor Units-AB 101

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[rbernardino@iseg.ulisboa.pt: Optimization 2026 - 20-22 July]
by Bernard Fortz 05 Jan '26

05 Jan '26

----- Début du message transféré de Raquel Monteiro de Nobre Costa Bernardino <rbernardino(a)iseg.ulisboa.pt> ----- From: Raquel Monteiro de Nobre Costa Bernardino <rbernardino(a)iseg.ulisboa.pt> To: "enog-info(a)euro-online.org" <enog-info(a)euro-online.org> Date: Fri, 12 Dec 2025 16:43:42 +0000 Subject: Optimization 2026 - 20-22 July Message-ID: <GV2PR01MB12314ABC106AD5FCA81AFC3E9FFAEA(a)GV2PR01MB12314.eurprd01.prod.exchangelabs.com> Tags: euro Dear ENOG Board Members, Could you please forward the email below to the members of the ENOG group? It publicizes the Operations Research conference Optimization 2026, which may be of interest to ENOG members. Thank you very much. Best regards, Raquel Bernardino ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Email to forward: Dear colleague, [1]Optimization 2026 is the 11th edition of a series of Optimization international conferences held every three years, in Portugal. This meeting will be held at ISEG, University of Lisboa, July 20-22, 2026, and aims to bring together researchers and practitioners with common interests in optimization. This conference series has international recognition and is being organized under the auspices of APDIO (the Portuguese Operations Research Society). Plenary speakers will be: Adam N. Letchford | Lancaster University, United Kigdom Boglárka G-Tóth | University of Szeged, Hungary Claudia Archetti | University of Brescia, Italy Dick den Hertog | University of Amsterdam, Netherlands Gabriela Eichfelder| Technische Universität Ilmenau, Germany Tom Van Woensel | Eindhoven University of Technology, Netherlands You are most welcome to propose a Special Session with 3 or 4 talks. Abstract submission deadline or Session proposal: 10 April 2026. For additional information please see: [2]https://optimization2026.iseg.ulisboa.pt We look forward to meeting you in Optimization 2026, Cândida Mourão and Luis Gouveia References: [1] https://optimization2026.iseg.ulisboa.pt/ [2] https://optimization2026.iseg.ulisboa.pt/ ----- Fin du message transféré -----

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