Presentation is loading. Please wait.

Presentation is loading. Please wait.

Modeling Aggression & Bullying: A Complex Systems Approach George Mudrak University of Colorado at Colorado Springs November 1 st, 2013.

Similar presentations


Presentation on theme: "Modeling Aggression & Bullying: A Complex Systems Approach George Mudrak University of Colorado at Colorado Springs November 1 st, 2013."— Presentation transcript:

1 Modeling Aggression & Bullying: A Complex Systems Approach George Mudrak University of Colorado at Colorado Springs November 1 st, 2013

2 Introduction George Mudrak, graduate student at University of Colorado at Colorado Springs working on my MS in CS. My thesis topic: Modeling Aggression & Bullying: A Complex Systems Approach. My Committee: Sudhanshu Semwal Edward Chow Chuan Yue Bonnie Snyder George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

3 Definitions Bullying (aggression) : repeated, unwanted, aggressive behavior that involves a real or perceived power imbalance. Complex System : a system in which large networks of components with no central control and simple rules of operation give rise to complex collective behavior, sophisticated information processing, and adaptation via learning or evolution. George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

4 Why Aggression and Bullying? Can have severe consequences. It is pandemic Playground, classroom, office politics, hazing. Companies, Apple vs. Samsung. Countries, US vs. the planet. Cultures. I, and people I care about have been bullied. George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

5 If it is this Common… …why is it so hard to study? Well known experiments. Philip Zimbardo, Stanford Prison Experiment. Jane Elliot, bown eyes, blue eyes. Unethical and immoral. Impossible to reset, posteriori knowledge. Observations and after the fact.

6 How Can We Explore this? Complex Systems Modeling (CSM). Simulated world. Actors / agents. Very resource effective. Emergent behaviors. Non-deterministically coded. Arise from local interactions. Wide usage today in industry. Electrical power, city planning, social modeling, population studies, animal behaviors, etc. George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

7 What am I interested In? Emergent phenomena from simple rules of behavior. Effects of aggression and bullying. Effectiveness of coercive agents at preventing bullying. Effects of changing behavioral parameters. George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

8 The Plan Create a virtual world populated with people. Support differences among the population. Define basic behaviors and causality. Provide a user interface facilitating modeler specified world parameter values. George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

9 Outcomes? A virtual world where basic behavioral rules yield emergent behavior. Verification of bullying and aggression. A model that can hopefully be used by other interested people.

10 Platform Hardware Apple iMac, 2.8GHz core i7 with 32 GB RAM and an ATI Radeon HD MB RAM video card. OS X Modeling Software NetLogo 3D, v5.0.4, created by Uri Wilensky. George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

11 Design A virtual world Contain actors Actors Autonomous – actors have goals and the means to achieve them. Attributes – actors possess qualities such as strength, hunger, energy levels, etc. Behaviors – actors possess basic behavioral rules. George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

12 The Actors People Life within world. Attack other people when they are hungry. Coercers The worlds enforcers. Food Passive. Exists to supply energy to people. Alternative to attacking others, if its present. George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

13 People All have energy that depletes over time Hunger Strength Aggression Base behavior, hunger. When hungry, find weaker prey and attack. George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

14 Coercers and Food Coercers Presence acts as a deterrent based on authority. Punish bullies they catch. Food Passive actor. Exists to provide energy source for even weakest of people. Never runs out of energy. George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

15 Perception & Movement Models Perception algorithms. Everyone. Hamming distance. Movement algorithms. No movement. Move away. Tower. George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

16 Aggression & Defense Models Aggression algorithms. Random prey. Minimum defense, prey. Defensive algorithms. Individual. Group average. Tower. George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

17 Simulations Population:2,500Tolerance:5 Vision:4Coercers:0% Food:0 Minimum defense food modelNo discriminators model No empowerment modelIndividual defense model Move away movement model

18 Baseline Simulation George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

19 With Food George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013 Food:10

20 With Coercers George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013 Food:0Coercers:1% Coercer vision:4Coercer authority:30%

21 With Coercers George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013 Coercer authority:100%

22 With Food George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013 Food:2Coercer authority:20% Hamming distance discriminatorHamming bias enforcement

23 Defensive Learning George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013 Defensive buff empowerment

24 George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

25 Defensive Learning

26 Stalking Emerges George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

27 Observations Core population attributes were consistent. Desire, hunger, strength, aggression. Behavioral algorithms had an impact. Similarity / dissimilarity evident. Emergent behavior !! Stalking. Safe zones, i.e. no bully zones. Aggressive flocking Rubber-banding. i.e. returning to feed. George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

28 Conclusions We can create a complex system that provides a model where digital people can realistically bully and defend against bullying. Analysis shows that core baseline population averages are consistent regardless of behavioral models. This means changes are the result of selected models. And especially, we saw emergent behavior such as returning to prey, stalking, co-located aggression, and emergence of no bully zones. George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

29 Future Work Coercers mobility. Random visual distances. Gang aggression. Better walking algorithms. Greater variation in metabolism. Regeneration. Use of avatars instead of 3D points and simulated in spatial constraints such as buildings, geography, etc.

30 Demo George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

31 Questions… George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

32 Thesis References I Jing Wang, Ronald Iannotti, Tonja Nansel, School Bullying Among Adolescents in the United States: Physical, Verbal, Relational, and Cyber Journal of Adolescent Health, p. 368 (2009) Gilbert, Nigel, Agent-Based Models, Series: Quantitative Applications in the Social Sciences, SAGE Publications, p. 3. (2008) Gilbert, Nigel, Agent-Based Models, Series: Quantitative Applications in the Social Sciences, SAGE Publications, p Mitchell, Melanie, Complexity A Guided Tour, Oxford University Press, p Gilbert, Nigel, Agent-Based Models, Series: Quantitative Applications in the Social Sciences, SAGE Publications, p Epstein, Joshua M., Axtell, Robert, Growing Artificial Societies - Social Science from the Bottom Up, Brookings Institution Press, Epstein, Joshua M., Generative Social Science - Studies in Agent-Based Computational Modeling, Princeton University Press, p George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013

33 Thesis References II Anonymous. What is cyberpunk? Cyberpunked: Journal of Science, Technology, & Society. Retrieved from 2009http://www.cyberpunked.org/cyberpunk/ Anonymous. StopBullying.gov bullying/definition/, 2013.http://www.stopbullying.gov/what-is- bullying/definition/ Epstein, Joshua M., Axtell, Robert, Growing Artificial Societies - Social Science from the Bottom Up, Brookings Institution Press, p.141 Gilbert, Nigel, Agent-Based Models, Series: Quantitative Applications in the Social Sciences, SAGE Publications, p. 31. Epstein, Joshua M., Axtell, Robert, Growing Artificial Societies - Social Science from the Bottom Up, Brookings Institution Press, p.79. Wilensky, U NetLogo. Center for Connected Learning and Computer-Based Modeling, Northwestern University. Evanston, IL.http://ccl.northwestern.edu/netlogo/ Mudrak, George, Semwal, Sudhanshu Kumar, AgentCity - An Agent-Based Modeling Approach to City Planning and Population Dynamics. International Conference on Collaboration Technologies and Systems (CTS), p George MudrakUniversity of Colorado at Colorado Springs Modeling Aggression & Bullying: A Complex Systems ApproachNovember 1 st, 2013


Download ppt "Modeling Aggression & Bullying: A Complex Systems Approach George Mudrak University of Colorado at Colorado Springs November 1 st, 2013."

Similar presentations


Ads by Google