Modeling Complex Dynamic Systems with StarLogo in the Supercomputing Challenge
Pedagogic Aspects of Teaching Agent Based Modelling using StarLogo Bob Abrahart School of Geography...
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Transcript of Pedagogic Aspects of Teaching Agent Based Modelling using StarLogo Bob Abrahart School of Geography...
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Pedagogic Aspects of TeachingAgent Based Modelling using StarLogo
Bob AbrahartSchool of Geography
University of Nottingham
The Place of GIS in the CurriculumUniversity of Leicester, 11-12 May 2005
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Agent Based Modelling …Why bother?– a new and growing field
Bibliography on software agentsURL: liinwww.ira.uka.de/bibliography/Ai/software.agents.html
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StarLogo•StarLogo is a programmable modeling environment for
exploring the behaviors of decentralized systems, systems without leaders. Examples of these systems in our everyday life include bird flocks, traffic jams, and ant colonies.
• In decentralized systems, orderly patterns can arise without centralized control. Increasingly, researchers are choosing decentralized models for the organizations and technologies that they construct in the world, and for the theories that they construct about the world.
•But many people continue to resist these ideas, assuming centralized control where none exists -- for example, assuming (incorrectly) that bird flocks have leaders.
•StarLogo is designed to help students (as well as researchers) develop new ways of thinking about and understanding decentralized systems.
http://lcs.www.media.mit.edu/courses/mas712/slweb/index.html
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http://ccl.northwestern.edu/netlogo/
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Concepts 1: Agent Based Modelling
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Different Views on Agent TopologiesConcepts 2:
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Agent Properties
Property Other Names
Meaning
reactive (sensing and acting)
responds in a timely fashion to changes in the environment
autonomous exercises control over its own actions
goal-oriented pro-active purposeful
does not simply act in response to the environment
temporally continuous
is a continuously running process
communicative socially able communicates with other agents, perhaps including people
learning adaptive changes its behavior based on its previous experience
mobile able to transport itself from one machine to another
flexible actions are not scripted
character believable "personality" and emotional state.
Concepts 3:
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The idea of emergence is used to indicate the arising of patterns, structures, or
properties that do not seem to be adequately explained by referring only to the system’s pre-existing components and
their interaction.
Concepts 4:Exploring “Emergence”
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Organizations of agents
Animate agents
Data
Artificial world
Observer
Inanimate agents
If <cond>
then <action1>
else <action2>
If <cond>
then <action1>
else <action2>
Bottom-Up ModellingConcepts 5:
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http://www-transims.tsasa.lanl.gov/
TRansportation ANalysis SIMulation System (TRANSIMS)
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Existing
Proposed
40% increase in Visitors
+12 Bus Parking+20 Caravan Parking
+130 Car ParksNew Visitor Centre
300 Metre walk to 12 Apostles viewpoint
RBSim - Recreation Behavior Simulatorhttp://srnr.arizona.edu/~gimblett/rbsim.html
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StarLogo: Spread of Malaria in Haiti http://www.irit.fr/COSI/training/evaluationoftools/haitimodel/haiti.html
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StarLogo: Simulation of Ant's Emergent Behavior
http://www.thepangburns.com/jesse/projects/ant_simulation.htm
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Two books exist:
Adventures in Modeling: Exploring Complex Dynamic Systems with StarLogoVanessa Stevens Colella, Eric Klopfer, and Mitchel Resnick
Turtles, Termites, and Traffic Jams: explorations in massively parallel microworldsMitchel Resnick
Show and tell…..