Aaron Schein

Assistant Professor of Stats & Data Science at UChicago


Curriculum vitae


schein@uchicago.edu


Department of Statistics & Data Science Institute

University of Chicago

Chicago, IL



Bayesian Poisson Tucker Decomposition for Learning the Structure of International Relations


Conference paper


Aaron Schein, Mingyuan Zhou, David M. Blei, Hanna M. Wallach
Proceedings of the International Conference on Machine Learning (ICML), 2016

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APA   Click to copy
Schein, A., Zhou, M., Blei, D. M., & Wallach, H. M. (2016). Bayesian Poisson Tucker Decomposition for Learning the Structure of International Relations. In Proceedings of the International Conference on Machine Learning (ICML).


Chicago/Turabian   Click to copy
Schein, Aaron, Mingyuan Zhou, David M. Blei, and Hanna M. Wallach. “Bayesian Poisson Tucker Decomposition for Learning the Structure of International Relations.” In Proceedings of the International Conference on Machine Learning (ICML), 2016.


MLA   Click to copy
Schein, Aaron, et al. “Bayesian Poisson Tucker Decomposition for Learning the Structure of International Relations.” Proceedings of the International Conference on Machine Learning (ICML), 2016.


BibTeX   Click to copy

@inproceedings{aaron2016a,
  title = {Bayesian Poisson Tucker Decomposition for Learning the Structure of International Relations},
  year = {2016},
  author = {Schein, Aaron and Zhou, Mingyuan and Blei, David M. and Wallach, Hanna M.},
  booktitle = {Proceedings of the International Conference on Machine Learning (ICML)}
}

Other materials: [Code] [Poster] [Slides]
Abstract: We introduce Bayesian Poisson Tucker decomposition (BPTD) for modeling country--country interaction event data. These data consist of interaction events of the form "country i took action a toward country j at time t." BPTD discovers overlapping country--community memberships, including the number of latent communities. In addition, it discovers directed community–community interaction networks that are specific to "topics" of action types and temporal "regimes." We show that BPTD yields an efficient MCMC inference algorithm and achieves better predictive performance than related models. We also demonstrate that it discovers interpretable latent structure that agrees with our knowledge of international relations.

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