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Making Models Match: Replicating an Agent-Based Model

Wilensky, Uri; Rand, William - In: Journal of Artificial Societies and Social Simulation 10 (2007) 4, pp. 2-2

been replicated by anyone but the original developer. As replication is a critical component of the scientific method and a … core practice of scientists, we argue herein for an increased practice of replication in the agent-based modeling community …, and for widespread discussion of the issues surrounding replication. We begin by clarifying the concept of replication as …

Persistent link: https://www.econbiz.de/10005518567

Progress in Model-To-Model Analysis

Rouchier, Juliette; Cioffi-Revilla, Claudio; Polhill, … - In: Journal of Artificial Societies and Social Simulation 11 (2008) 2, pp. 8-8

[No abstract]

Persistent link: https://www.econbiz.de/10005518540

Is Your Model Susceptible to Floating-Point Errors?

Izquierdo, Luis R.; Polhill, J. Gary - In: Journal of Artificial Societies and Social Simulation 9 (2006) 4, pp. 4-4

This paper provides a framework that highlights the features of computer models that make them especially vulnerable to floating-point errors, and suggests ways in which the impact of such errors can be mitigated. We focus on small floating-point errors because these are most likely to occur,...

Persistent link: https://www.econbiz.de/10005518603

Reply to Will and Hegselmann

Macy, Michael; Sato, Yoshimichi - In: Journal of Artificial Societies and Social Simulation 11 (2008) 4, pp. 11-11

[No abstract]

Persistent link: https://www.econbiz.de/10005518637

Open Access for Social Simulation

Polhill, J. Gary; Edmonds, Bruce - In: Journal of Artificial Societies and Social Simulation 10 (2007) 3, pp. 10-10

We consider here issues of open access to social simulations, with a particular focus on software licences, though also briefly discussing documentation and archiving. Without any specific software licence, the default arrangements are stipulated by the Berne Convention (for those countries...

Persistent link: https://www.econbiz.de/10005481565

A Mathematical Model of the Beer Game

Edali, Mert; Yasarcan, Hakan - In: Journal of Artificial Societies and Social Simulation 17 (2014) 4, pp. 2-2

The Beer Game. We apply model replication principles and discuss the difficulties we faced in the process of constructing …

Persistent link: https://www.econbiz.de/10011158415

Reinforcement Learning Dynamics in Social Dilemmas

Izquierdo, Segismundo S.; Izquierdo, Luis R.; Gotts, … - In: Journal of Artificial Societies and Social Simulation 11 (2008) 2, pp. 1-1

In this paper we replicate and advance Macy and Flache\'s (2002; Proc. Natl. Acad. Sci. USA, 99, 7229â€“7236) work on the dynamics of reinforcement learning in 2×2 (2-player 2-strategy) social dilemmas. In particular, we provide further insight into the solution concepts that they describe,...

Persistent link: https://www.econbiz.de/10004983474

Appearances Can Be Deceiving: Lessons Learned Re-Implementing Axelrod's 'Evolutionary Approach to Norms'

Galán, José Manuel; Izquierdo, Luis R. - In: Journal of Artificial Societies and Social Simulation 8 (2005) 3, pp. 2-2

In this paper we try to replicate the simulation results reported by Axelrod (1986) in an influential paper on the evolution of social norms. Our study shows that Axelrod's results are not as reliable as one would desire. We can obtain the opposite results by running the model for longer, by...

Persistent link: https://www.econbiz.de/10004983476

The Ghost in the Model (and Other Effects of Floating Point Arithmetic)

Polhill, J. Gary; Izquierdo, Luis R.; Gotts, Nicholas M. - In: Journal of Artificial Societies and Social Simulation 8 (2004) 1, pp. 5-5

mathematical descriptions of models in the literature are insufficient to enable exact replication of work since mathematically …

Persistent link: https://www.econbiz.de/10004983478

A Semantic Grid Service for Experimentation with an Agent-Based Model of Land-Use Change

Polhill, J. Gary; Pignotti, Edoardo; Gotts, Nicholas M.; … - In: Journal of Artificial Societies and Social Simulation 10 (2007) 2, pp. 2-2

Agent-based models, perhaps more than other models, feature large numbers of parameters and potentially generate vast quantities of results data. This paper shows through the FEARLUS-G project (an ESRC e-Social Science Initiative Pilot Demonstrator Project) how deploying an agent-based model on...

Persistent link: https://www.econbiz.de/10004983489