Using the ODD protocol and NetLogo to replicate agent-based models

Grimm Volker, Berger Uta, Calabrese Justin M., Cortés-Avizanda Ainara, Ferrer Jordi, Franz Mathias, Groeneveld Jürgen, Hartig Florian, Jakoby Olivier, Jovani Roger, Kramer-Schadt Stephanie, Münkemüller Tamara, Piou Cyril, Premo L.S., Pütz Sandro, Quintaine Thomas, Rademacher Christine, Rüger Nadja, Schmolke Amelie, Thiele Jan C., Touza Julia, Railsback Steven F.. 2025. Using the ODD protocol and NetLogo to replicate agent-based models. Ecological Modelling, 501:110967, 8 p.

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Economie-gestion

Résumé : Replicating existing models and their key results not only adds credibility to the original work, it also allows modellers to start model development from an existing approach rather than from scratch. New theory can then be developed by changing the assumptions or scenarios tested, or by carrying out more in-depth analysis of the model. However, model replication can be challenging if the original model description is incomplete or ambiguous. Here we show that the use of standards can facilitate and speed up replication: the ODD protocol for describing models, and NetLogo, an easy-to-learn but powerful software platform and language for implementing agent-based models. To demonstrate the benefits of this approach, we conducted a replication experiment on 18 agent-based models from different disciplines. The researchers doing the replications had no or little previous experience using ODD and NetLogo. Their task was to rewrite the original model description using ODD, implement the model in NetLogo and try to replicate at least one exemplary main result. They were also asked to produce, if time allowed, some initial new results with the replicated model, and to record the total time spent on the replication exercise. Replication was successful for 15 out of 18 models. The time taken varied between 2 and 12 days, with an average of 5 days. ODD helped to systematically scan the original model description, while NetLogo proved easy and quick to learn, but difficult to debug when implementation problems arose. Although most of the models replicated were relatively simple, we conclude that even for more complex models it can be useful to use ODD and NetLogo for replication, at least for developing a prototype to help decide how to proceed with the replicated model. Overall, the use of both, standard approaches such as ODD and easy to learn but powerful software such as NetLogo, can promote coherence and efficiency within and between different models and modelling communities. Imagine if all modellers spoke ODD and NetLogo as a common language or lingua franca.

Mots-clés Agrovoc : modèle mathématique, modèle de simulation, modélisation, modèle à base d'agents, système d'aide à la décision, origine de réplication, provenance

Mots-clés libres : Model replication, Standards, ODD protocol, NetLogo, Agent-Based Model, Theory development

Agences de financement hors UE : Center for Advanced Systems Understanding, Bundesministerium für Bildung und Forschung, Sächsische Akademie der Wissenschaften zu Leipzig

Auteurs et affiliations

• Grimm Volker, Helmholtz Centre for Environmental Research (DEU) - auteur correspondant
• Berger Uta, Technische Universität Dresden (DEU)
• Calabrese Justin M., CASUS (DEU)
• Cortés-Avizanda Ainara, CSIC (ESP)
• Ferrer Jordi, Lycée International de Barcelona Bon Soleil (ESP)
• Franz Mathias, Max Planck Institute for Evolutionary Anthropology (DEU)
• Groeneveld Jürgen, Helmholtz Centre for Environmental Research (DEU)
• Hartig Florian, University of Regensburg (DEU)
• Jakoby Olivier
• Jovani Roger, CSIC (ESP)
• Kramer-Schadt Stephanie, Technische Universitaet Berlin (DEU)
• Münkemüller Tamara, Université Grenoble Alpes (FRA)
• Piou Cyril, CIRAD-BIOS-UMR CBGP (FRA) ORCID: 0000-0002-9378-9404
• Premo L.S., Washington State University (USA)
• Pütz Sandro, Helmholtz Centre for Environmental Research (DEU)
• Quintaine Thomas, URCA (FRA)
• Rademacher Christine, Technische Hochschule Nürnberg Georg Simon Ohm (DEU)
• Rüger Nadja, University of Leipzig (DEU)
• Schmolke Amelie
• Thiele Jan C., Georg-August University of Göttingen (DEU)
• Touza Julia, University of York (GBR)
• Railsback Steven F., Lang Railsback & Associate (USA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/611294/)

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