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Browsing Krasnow Institute for Advanced Study by Issue Date

Now showing items 1-20 of 36

Conflict in Complex Socio-Natural Systems: Using Agent-Based Modeling to Understand the Behavioral Roots of Social Unrest within the Mandera Triangle

Rouleau, Mark; Coletti, Mark; Bassett, Jeffrey K.; Hailegiorgis, Atesmachew B.; Gulden, Tim; Kennedy, William G. (Human Behavior-Computational Modeling and Interoperability Conference, 2009-06)

Conflict resolution research relies upon a deep understanding of human behavior within highly complex socionatural systems. Scholars must isolate the source of conflict among individuals reacting to the feedback of changing ...
MASON AfriLand: A Regional Multi-Country Agent-Based Model with Cultural and Environmental Dynamics

Cioffi-Revilla, C.; Rouleau, M. (2009-06)

Agent-based models of regions of the international system composed of several countries are few and not as advanced as other classes of spatial computational models on a comparable scale. Most relevant extant models are ...
GeoMason: Geospatial Support for MASON

Sullivan, Keith; Coletti, Mark; Luke, Sean (Department of Computer Science, George Mason University, 2010)

MASON is a free, open-source Java-based discrete event multi-agent simulation toolkit that has been used to model network intrusions, unmanned aerial vehicles, nomadic migrations, and farmer/herder conflicts, among others. ...
An Agent-Based Model of Climate Change and Conflict among Pastoralists in East Africa

Hailegiorgis, A.B.; Kennedy, W.G.; Balan, G.C.; Bassett, J.K.; Gulden, T. (International Environmental Modelling and Software Society (iEMSs), 2010)

Presented is an agent-based model of human-environment interaction and conflict in East Africa using the MASON agent-based simulation environment. The model focuses on the complex interaction of pastoral groups with their ...
MASON RebeLand: An Agent-Based Model of Politics, Environment, and Insurgency

Cioffi-Revilla, Claudio; Rouleau, Mark (2010-02)

Problem overview: explore the complex relationship between Society, Government, and Issues, using an explicit polity (political system) model; understand the feedback amongst Citizen Satisfaction, Issue Management, and ...
MASON RebeLand: An Agent-Based Model of Politics, Environment, and Insurgency

Cioffi-Revilla, Claudio; Rouleau, Mark (Wiley-Blackwell, 2010-03)

Social simulation models from computational social science are beginning to provide significant advances in terms of implementing more complex social, human, and natural dynamics that are characteristic of how countries ...
An Agent-Based Model of Conflict in East Africa and the Effect of Watering Holes

Kennedy, W.G.; Hailegiorgis, A.B.; Rouleau, M.; Bassett, J.K.; Coletti, M.; Balan, G.C.; Gulden, T. (Conference on Behavior Representation in Modeling and Simulation, 2010-03)

An agent-based model conflict between herdsmen in east Africa using the MASON agent-based simulation environment is presented. Herders struggle to keep their herds fed and watered in a GIS-based, spatially diverse environment ...
Integrating Fast and Slow Cognitive Processes

Kennedy, William, G.; Bugjska, Magdalena (International Conference on Cognitive Modeling, 2010-08)

Human reactions appear to be controlled by two separate types of mental processes: one fast, automatic, and unconscious and the other slow, deliberate, and conscious. With the attention in the literature focused on the ...
MASON HerderLand: Origins of Conflict in East Africa

Kennedy, W.G.; Hailegiorgis, A.B.; Rouleau, M.; Bassett, J.K.; Coletti, M.; Balan, G.C.; Gulden, T.; Cioffi-Revilla, C. (2010-11)

HerderLand is an agent-based model of the people and environment in the Mandera Triangle area of Eastern Africa developed to address the causes of conflict in the area. With it we have conducted three sets of experiments ...
Pandemonium in Silico: Individual Radicalization for Agent-Based Modeling

Cioffi-Revilla, Claudio; Harrison, Joseph F. (International Studies Association, 2011-03)

How do individuals become radicalized, turning into terrorists, insurgents, violent actors.Computational agent-based models of irregular warfare, internal war, domestic political violence, and related conflicts require ...
The "Fast and Frugal" Cognitive Architecture for Computational Social Simulations

Kennedy, William G.; Bassett, Jeffrey K. (Behavior Representation in Modeling & Simulation (BRIMS) Conference 2011, 2011-03)

Computational social simulations involving humans require models of human behavior but their behavior can be represented and modeled in many ways. The two dimensions of this challenge we are interested in are the degree ...
Complex Polities in the Age of Modern States

Cioffi-Revilla, Claudio (International Studies Association, 2011-03-16)

Complex polities are political systems composed of both official "vertical" state institutions as well as one or more alternative set of "horizontal" institutions, such as religious, economic, paramilitary, or even criminal ...
Comparing Agent-Based Computational Simulation Models in Cross-Cultural Research

Cioffi-Revilla, Claudio (SAGE, 2011-05)

Mel Ember was co-Principal Investigator in the Mason-HRAF Joint Project on Eastern Africa, a multiyear project aimed at developing and analyzing advanced computational agent-based models of human societies across 10 countries ...
Geographic Information Systems (GIS) and Spatial Agent-Based Model (ABM) Simulations for Sustainable Development

Cioffi-Revilla, Claudio; Roger, J. Daniel; Hailegiorgis, Atesmachew (Association for Computing Machinery (ACM), 2011-10)

In recent years the interdisciplinary field of Computational Social Science has developed theory and methodologies for building spatial Agent-Based Social Simulation (ABSS) models of human societies that are situated in ...
Evolutionary Computation and Agent-based Modeling: Biologically-inspired Approaches for Understanding Complex Social Systems

Cioffi-Revilla, Claudio; De Jong, Kenneth; Bassett, Jeffrey (Kluwer, 2012-06-18)

Computational social science in general, and social agent-based modeling (ABM) simulation in particular, are challenged by modeling and analyzing complex adaptive social systems with emergent properties that are hard to ...
Signaling Pathways Involved in Striatal Synaptic Plasticity are Sensitive to Temporal Pattern and Exhibit Spatial Specificity

Kim, BoHung; Hawes, Sarah L.; Gillani, Fawad; Wallace, Lane J.; Blackwell, Kim T. (Public Library of Science, 2013-03-14)

The basal ganglia is a brain region critically involved in reinforcement learning and motor control. Synaptic plasticity in the striatum of the basal ganglia is a cellular mechanism implicated in learning and neuronal ...
Augmenting Weak Semantic Cognitive Maps with an “Abstractness” Dimension

Samsonovich, Alexei (Hindawi Publishing, 2013-04-29)

The emergent consensus on dimensional models of sentiment, appraisal, emotions, and values is on the semantics of the principal dimensions, typically interpreted as valence, arousal, and dominance. The notion of weak ...
Employment Growth through Labor Flow Networks

Guerrero, Omar A.; Axtell, Robert L. (Public Library of Science, 2013-05-02)

It is conventional in labor economics to treat all workers who are seeking new jobs as belonging to a labor pool, and all firms that have job vacancies as an employer pool, and then match workers to jobs. Here we develop ...
Not so cool? Menthol’s discovered actions on the nicotinic receptor and its implications for nicotine addiction

Kabbani, Nadine (Frontiers, 2013-07-23)

Nicotine cigarette smoke is a large public health burden worldwide, contributing to various types of disease. Anti-tobacco media campaigns and control programs have significantly reduced smoking in the United States, yet ...
Functional Genomic Analyses of Two Morphologically Distinct Classes of Drosophila Sensory Neurons: Post-Mitotic Roles of Transcription Factors in Dendritic Patterning

Iyer, Eswar Prasad R.; Iyer, Srividya Chandramouli; Sullivan, Luis; Wang, Dennis; Meduri, Ramakrishna; Graybeal, Lacey L.; Cox, Daniel N. (Public Library of Science, 2013-08-15)

Background Neurons are one of the most structurally and functionally diverse cell types found in nature, owing in large part to their unique class specific dendritic architectures. Dendrites, being highly specialized ...

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