Galen Hall

Galen Hall

Physics and Sociology joint PhD student at the University of Michigan. Builder of InCite.

Publications

Working Papers

  1. Chawla, A., Hall, G., & Lovato, J. (2026). MetaOthello: A Controlled Study of Multiple World Models in Transformers. arXiv preprint arXiv:2602.23164. Paper

    We introduce MetaOthello, a suite of Othello game variants designed to investigate how transformers organize multiple world models within shared representations. We find that transformers trained on mixed-game data converge on a mostly shared board-state representation that transfers across variants.

  2. Hall, G., Garlick, A., & Strickland, J. (2026). Indexing American Interest Groups. Working paper.

    Automated classification of state interest group populations using LLM-augmented semi-supervised learning, classifying over 25,000 organizations into 117 industry categories across all 50 U.S. states.

  3. Hall, G. & Newman, M. (2025). Multilayer Community Contribution. Working paper.

    Inferring the contribution each layer makes to the community structure of a multilayer network, using a Bayesian Poisson stochastic block model with size-aware priors.

Published

  1. Hall, G., Loy, L., Brulle, R. J., Schell-Smith, K., Hu, M. M., & Trollback, S. (2024). Where ideology meets private interest: the three-part composition of climate obstruction in the United States. Environmental Research Communications, 6(8), 081003. Paper
  2. Hall, G., Culhane, T., & Roberts, J. T. (2024). Climate coalitions and anti-coalitions: Lobbying across state legislatures in the United States. Energy Research & Social Science, 113, 103562. Paper
  3. Hall, G., Basseches, J. A., Bromley-Trujillo, R., & Culhane, T. (2024). CHORUS: A New Dataset of State Interest Group Policy Positions in the United States. State Politics & Policy Quarterly, 1-26. Paper Website
  4. Basseches, J. A., Bromley-Trujillo, R., Boykoff, M. T., Culhane, T., Hall, G., Healy, N., Hess, D. J., & Stephens, J. C. (2022). Climate policy conflict in the US states: a critical review and way forward. Climatic Change, 170(3), 32. Paper
  5. Culhane, T., Hall, G., & Roberts, J. T. (2021). Who delays climate action? Interest groups and coalitions in state legislative struggles in the United States. Energy Research & Social Science, 79, 102114. Paper
  6. Brulle, R. J., Hall, G., Loy, L., & Schell-Smith, K. (2021). Obstructing action: foundation funding and US climate change counter-movement organizations. Climatic Change, 166(1-2), 17. Paper
  7. Dooley, K., Holz, C., Kartha, S., Klinsky, S., Roberts, J. T., Shue, H., Winkler, H., Athanasiou, T., Caney, S., Cripps, E., Dubash, N. K., Hall, G., Harris, P. G., Lahn, B., Moellendorf, D., Müller, B., Sagar, A., & Singer, P. (2021). Ethical choices behind quantifications of fair contributions under the Paris Agreement. Nature Climate Change, 11(4), 300-305. Paper
  8. Galen Hall, Tom Nicholas, Colleen Schmidt, "The faulty science, doomism, and flawed conclusions of Deep Adaptation." openDemocracy, 2020. Paper