Computational Model Library

Displaying 10 of 108 results for "Marco Davoli" clear search

Covid-19-Belief-network-Hybrid-Model

Morteza Mahmoudzadeh | Published Sunday, September 05, 2021

Digital social networks facilitate the opinion dynamics and idea flow and also provide reliable data to understand these dynamics. Public opinion and cooperation behavior are the key factors to determine the capacity of a successful and effective public policy. In particular, during the crises, such as the Corona virus pandemic, it is necessary to understand the people’s opinion toward a policy and the performance of the governance institutions. The problem of the mathematical explanation of the human behaviors is to simplify and bypass some of the essential process. To tackle this problem, we adopted a data-driven strategy to extract opinion and behavioral patterns from social media content to reflect the dynamics of society’s average beliefs toward different topics. We extracted important subtopics from social media contents and analyze the sentiments of users at each subtopic. Subsequently, we structured a Bayesian belief network to demonstrate the macro patters of the beliefs, opinions, information and emotions which trigger the response toward a prospective policy. We aim to understand the factors and latent factors which influence the opinion formation in the society. Our goal is to enhance the reality of the simulations. To capture the dynamics of opinions at an artificial society we apply agent-based opinion dynamics modeling. We intended to investigate practical implementation scenarios of this framework for policy analysis during Corona Virus Pandemic Crisis. The implemented modular modeling approach could be used as a flexible data-driven policy making tools to investigate public opinion in social media. The core idea is to put the opinion dynamics in the wider contexts of the collective decision-making, data-driven policy-modeling and digital democracy. We intended to use data-driven agent-based modeling as a comprehensive analysis tools to understand the collective opinion dynamics and decision making process on the social networks and uses this knowledge to utilize network-enabled policy modeling and collective intelligence platforms.

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.

Evolution of altruistic punishment

Marco Janssen | Published Wednesday, September 03, 2008 | Last modified Saturday, March 09, 2019

In the model agents make decisions to contribute of not to the public good of a group, and cooperators may punish, at a cost, defectors. The model is based on group selection, and is used to understan

Population aggregation in ancient arid environments

Marco Janssen | Published Tuesday, May 04, 2010 | Last modified Saturday, April 27, 2013

The purpose of this model is to help understand how prehistoric societies adapted to the prehistoric American southwest landscape. In the American southwest there is a high degree of environmental var

Model to simulation the landscape of possible shedding games

Marco Janssen | Published Sunday, May 16, 2010 | Last modified Saturday, April 27, 2013

This model simulates 2048 versions of shedding games and evaluates the consequences on the average length and the difficulty of the game agents experience. The purpose of the model is to understand th

Evolution of shedding games

Marco Janssen | Published Sunday, May 16, 2010 | Last modified Saturday, April 27, 2013

This simulates the evolution of rules of shedding games based on cultural group selection. A number of groups play shedding games and evaluate the consequences on the average length and the difficulty

Evolution of cooperation via indirect reciprocity by image scoring

Marco Janssen | Published Friday, October 22, 2010 | Last modified Saturday, April 27, 2013

The model explores the possibility of the evolution of cooperation due to indirect reciprocity when agents derive information about the past behavior of the opponent in one-shot dilemma games.

Vulnerability of Cooperation Due to Limited Vision

Marco Janssen | Published Thursday, December 02, 2010 | Last modified Saturday, April 27, 2013

This model describes the consequences of limited vision of agents in harvesting a common resource. We show the vulnerability of cooperation due to reduced visibility of the resource and other agents.

Displaying 10 of 108 results for "Marco Davoli" clear search

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