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dc.contributor.advisorKing, Gary
dc.contributor.advisorTingley, Dustin
dc.contributor.advisorSnyder, James M.
dc.contributor.advisorImai, Kosuke
dc.contributor.authorGoplerud, Max H.
dc.date.accessioned2020-10-16T14:09:56Z
dash.embargo.terms2022-05-01
dc.date.created2020-05
dc.date.issued2020-05-11
dc.date.submitted2020
dc.identifier.citationGoplerud, Max H. 2020. Essays on Bayesian Methods and Machine Learning Applied to Political Science. Doctoral dissertation, Harvard University, Graduate School of Arts & Sciences.
dc.identifier.urihttps://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37365821*
dc.description.abstractThis dissertation presents three papers on Bayesian methods and machine learning applied to research questions in political science. The papers are unified by creating new methods that extend research from other disciplines to target specific substantive questions faced by social scientists. The first paper is focused on "Bayesian structured sparsity.'' This method relies on approaches that extend traditional sparse methods (such as the LASSO) to cluster or group parameters together while allowing researchers to explicitly integrate their prior beliefs about group-formation. I apply it to estimating heterogeneous effects, and I derive novel results about a Bayesian formulation of this method. The second paper outlines "marginally augmented variational Bayes.'' It develops a novel algorithm for estimating non-linear hierarchical models with variational inference. It then outlines a procedure for post-processing and improving the approximation using parameter expansion. Taken together, this allows hierarchical models to be scaled to large and complex problems at limited computational cost. The third paper outlines a framework for estimating ideal points when the observed data are multinomial (i.e. more than two responses). These methods are applied to a variety of questions in political science including, respectively, a re-examination of an experiment about legislative credit-claiming, estimating a model of voter turnout for demographic and state sub-groups, and understanding non-response in the American National Election Study.
dc.description.sponsorshipGovernment
dc.format.mimetypeapplication/pdf
dc.language.isoen
dash.licenseLAA
dc.subjectpolitical science
dc.subjectpolitical methodology
dc.subjectbayesian statistics
dc.titleEssays on Bayesian Methods and Machine Learning Applied to Political Science
dc.typeThesis or Dissertation
dash.depositing.authorGoplerud, Max H.
dash.embargo.until2022-05-01
dc.date.available2020-10-16T14:09:56Z
thesis.degree.date2020
thesis.degree.grantorGraduate School of Arts & Sciences
thesis.degree.grantorGraduate School of Arts & Sciences
thesis.degree.levelDoctoral
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy
thesis.degree.nameDoctor of Philosophy
dc.type.materialtext
thesis.degree.departmentGovernment
thesis.degree.departmentGovernment
dash.identifier.vireo
dash.author.emailmgoplerud@gmail.com


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