friends forever: social relationships with a fuzzy agent-based model samer hassan mauricio salgado...
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Friends Forever: Social Relationships with a Fuzzy Agent-Based Model
Samer Hassan
Mauricio Salgado
Juan Pavón
Universidad Complutense de Madrid
University of Surrey
Samer Hassan HAIS08 2008 2
Contents
Understanding Friendship Dynamics
The ABM Mentat
Fuzzification process
Results
Conclusions
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Understanding Friendship Dynamics
“Meeting” & “Mating”: strangers => acquaintances => friends => partner
“Meeting”: depends on opportunities alone space & time
“Mating”: depends on both opportunities & attraction
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Understanding Friendship Dynamics
Proximity principle:The more similar two individuals are, the stronger their chances of becoming friends
Features channel individual preferences
Homogeneous friendship choices
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Contents
Understanding Friendship Dynamics
The ABM Mentat
Fuzzification process
Results
Conclusions
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The ABM Mentat
Aim: simulate the process of change in moral values in a period in a society
Plenty of factors involved Now focusing on demography
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Mentat: architecture
Agent:
Mental State attributes
Life cycle patterns
Demographic micro-evolution: • Couples• Reproduction• Inheritance
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Mentat: architecture
World: 3000 agents
Grid 100x100
Demographic model
Network: Communication with
Moore Neighbourhood
Friends network
Family network
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Mentat: Relationships
Meeting Agents randomly distributed in space
Mating Similarity operator => Boolean friendship
Matchmaking Couple chosen among “candidates” Quantity? The more friends, the more couples Quality? Couples should be similar
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Mentat: Relationships
Meeting Agents randomly distributed in space
Mating Similarity operator => Friendship
Matchmaking Couple chosen among “candidates” Quantity? The more friends, the more couples Quality? Couples should be similar
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Contents
Understanding Friendship Dynamics
The ABM Mentat
Fuzzification process
Results
Conclusions
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Be Fuzzy, my Friend
Similar, Friend: fuzzy concepts
Fuzzification Improve accuracy of similarity Improve realism of friendship Improve quality couples
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Fuzzy Similarity
Fuzzifying variables μeconomy :U →[0,1]
μeconomy (ind) = 0.7
Fuzzifying Similarity operatorPara ver esta película, debedisponer de QuickTime™ y de
un descompresor TIFF (sin comprimir).
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Fuzzy Friendship
Boolean => Fuzzy relationship
But friendship occurs through time: Dynamic evolution! Hypothesis: Logistic function
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Fuzzy Friendship Evolution
Para ver esta película, debedisponer de QuickTime™ y de
un descompresor TIFF (sin comprimir).Para ver esta película, debedisponer de QuickTime™ y de
un descompresor TIFF (sin comprimir).
Para ver esta película, debedisponer de QuickTime™ y de
un descompresor TIFF (sin comprimir).
Para ver esta película, debedisponer de QuickTime™ y deun descompresor TIFF (sin comprimir).
Para ver esta película, debedisponer de QuickTime™ y de
un descompresor TIFF (sin comprimir).
Samer Hassan HAIS08 2008 22
Couples
Couple relationship cannot be fuzzified
But process improved: Accuracy of similarity New info: friendship
Para ver esta película, debedisponer de QuickTime™ y de
un descompresor TIFF (sin comprimir).
Samer Hassan HAIS08 2008 23
Contents
Understanding Friendship Dynamics
The ABM Mentat
Fuzzification process
Results
Conclusions
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Results
Implementations (FS, FF): FS: attributes & similarity fuzzified FF: friendship fuzzified, evolving & affecting
partner choice
Configurations: RND-Fr: promoting random friends (agents
can be linked to a non-similar neighbour) SIM-Fr: promoting similarity-based friends
(agents will give priority to the most similar neighbours)
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Results
Para ver esta película, debedisponer de QuickTime™ y de
un descompresor TIFF (sin comprimir).
Samer Hassan HAIS08 2008 26
Contents
Understanding Friendship Dynamics
The ABM Mentat
Fuzzification process
Results
Conclusions
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Conclusions
Fuzzification fits well in social processes
Achieved improvements in Accuracy of similarity Realism of friendship
• Continuous• Evolving
Quality of the couples
Future work Stability of friendship Weak links
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Thanks for your attention!
Samer [email protected]
Universidad Complutense de Madrid
University of Surrey
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Contents License
This presentation is licensed under a Creative Commons Attribution 3.0 http://creativecommons.org/licenses/by/3.0/
You are free to copy, modify and distribute it as long as the original work and author are cited
Para ver esta película, debedisponer de QuickTime™ y de
un descompresor TIFF (sin comprimir).