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Social Decision Making

Installation

Import package from GitHub

1. Open the Package Manager in Unity editor: Window -> Package Manager

2. In the Package Manager press the + button to add a package and select Add package from git URL....

3. Paste the following line in the appeared text field: https://github.com/vagechirkov/SocialDecisionAgent.git

4. Press the Add button.

Import package from disk

Agent models

Social drift–diffusion model

For more details see 1.

For more details about the task see 2 and 3.

Machine Learning Agent training

More information here.

Python environment installation

conda create -n mlagents python=3.6
conda activate mlagents   
python -m pip install mlagents==0.27.0 

Training Process

conda activate mlagents  
mlagents-learn Assets/SocialDecisionAgent/Samples/SocialDecisionExampleScenes/AgentBrains/training_params.yml --run-id=test 

Training parameters and an example config files.

View training inforation

tensorboard --logdir results --port 6006 

References

[1] Tump, A. N., Pleskac, T. J., & Kurvers, R. H. J. M. (2020). Wise or mad crowds? The cognitive mechanisms underlying information cascades. Science Advances, 6(29), eabb0266. https://doi.org/10.1126/sciadv.abb0266

[2] Shinn, M., Ehrlich, D. B., Lee, D., Murray, J. D., & Seo, H. (2020). Confluence of Timing and Reward Biases in Perceptual Decision-Making Dynamics. Journal of Neuroscience, 40(38), 7326–7342. https://doi.org/10.1523/JNEUROSCI.0544-20.2020

[3] Germar, M., Schlemmer, A., Krug, K., Voss, A., & Mojzisch, A. (2014). Social Influence and Perceptual Decision Making: A Diffusion Model Analysis. Personality and Social Psychology Bulletin, 15.