Add rick's abstract

abstracts/rickpresman.qmd

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+title: "Constrained Estimation via Projected Mirror Descent"
+author: "Rick Presman"
+date: "Nov 27, 2023"
+---
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+## Abstract 
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+Constraints on parameter spaces promote various structures in statistical and machine learning tasks. However, they present methodological and computational challenges. These challenges only become more evident in non-Euclidean settings. We advocate for the use of Projected Mirror Descent for constrained online estimation problems in many cases when the parameter space is non-Euclidean. We outline convergence properties of this algorithm and show how it can be connected to other algorithms of interest.
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+### Advisor(s)
+
+Jason Xu