Computational Model Library

Displaying 10 of 212 results for "Marc Choisy" clear search

This model was utilized for the simulation in the paper titled Effect of Network Homophily and Partisanship on Social Media to “Oil Spill” Polarizations. It allows you to examine whether oil spill polarization occurs through people’s communication under various conditions.

・Choose the network construction conditions you’d like to examine from the “rewire-style” chooser box.
・Select the desired strength of partisanship from the “partisanlevel” chooser box. You can also set the strength manually in the code tab.
・You can set the number of dynamic topics using the “number-of-topics” slider.
・Use the “divers-of-opinion” slider to set the number of preference types for each dynamic topic.

Peer reviewed Empathy & Power

J M Applegate Ned Wellman | Published Monday, November 13, 2017 | Last modified Thursday, December 21, 2017

The purpose of this model is to explore the effects of different power structures on a cross-functional team’s prosocial decision making. Are certain power distributions more conducive to the team making prosocial decisions?

The first simple movement models used unbiased and uncorrelated random walks (RW). In such models of movement, the direction of the movement is totally independent of the previous movement direction. In other words, at each time step the direction, in which an individual is moving is completely random. This process is referred to as a Brownian motion.
On the other hand, in correlated random walks (CRW) the choice of the movement directions depends on the direction of the previous movement. At each time step, the movement direction has a tendency to point in the same direction as the previous one. This movement model fits well observational movement data for many animal species.

The presented agent based model simulated the movement of the agents as a correlated random walk (CRW). The turning angle at each time step follows the Von Mises distribution with a ϰ of 10. The closer ϰ gets to zero, the closer the Von Mises distribution becomes uniform. The larger ϰ gets, the more the Von Mises distribution approaches a normal distribution concentrated around the mean (0°).
In this script the turning angles (following the Von Mises distribution) are generated based on the the instructions from N. I. Fisher 2011.
This model is implemented in Javascript and can be used as a building block for more complex agent based models that would rely on describing the movement of individuals with CRW.

Peer reviewed Ache hunting

Kim Hill Marco Janssen | Published Tuesday, August 13, 2013 | Last modified Friday, December 21, 2018

Agent-based model of hunting behavior of Ache hunter-gatherers from Paraguay. We evaluate the effect of group size and cooperative hunting

Diffusion of Innovations on Social Networks

Hang Xiong | Published Saturday, April 16, 2016

This is model that simulates how multiple kinds of peer effects shape the diffusion of innovations through different types of social relationships.

The spatially-explicit AgriculTuralLandscApe Simulator (ATLAS) simulates realistic spatial-temporal crop availability at the landscape scale through crop rotations and crop phenology.

Peer reviewed Family Herd Demography

Mark Moritz Ian M Hamilton Andrew Yoak Rebecca Garabed Abigail Buffington | Published Monday, August 15, 2016 | Last modified Saturday, January 06, 2018

The model examines the dynamics of herd growth in African pastoral systems. We used it to examine the role of scale (herd size) stochasticity (in mortality, fertility, and offtake) on herd growth.

Evolution of cooperative strategies from first principles

Marco Janssen | Published Monday, January 04, 2010 | Last modified Saturday, April 27, 2013

The purpose of this model is to study the evolution of cooperation when agents are endowed with a limited set of receptors, a set of elementary actions and a neural network agents use to make decision

Evolution of cooperation with strangers

Marco Janssen | Published Friday, October 15, 2010 | Last modified Wednesday, November 13, 2013

The model is used to study the conditions under which agents will cooperate in one-shot two-player Prisoner’s Dilemma games if they are able to withdraw from playing the game and can learn to recogniz

Lansing-Kremer model of the Balinese irrigation system

Marco Janssen | Published Monday, June 16, 2008 | Last modified Tuesday, December 16, 2014

This is a NetLogo replication of the hill-climbing version of the Lansing-Kremer model of Balinese irrigation.

Displaying 10 of 212 results for "Marc Choisy" clear search

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