K-nearest Neighbors Regression and Applications to Condensed Matter Theory

• Jackson Lee (Rutgers University)

**Abstract**: In this talk, we’ll be going over the k-nearest neighbors (KNN) regression algorithm, a supervised machine learning algorithm that is used to predict a continuous target value. While KNN is a simple algorithm, it can be used with great effectiveness in many cases. We’ll first develop an intuition behind what the algorithm is doing, and why it works. Then, we’ll walk through a fully coded example problem. After that, we'll apply KNN in a condensed matter context. We’ll end by going over some of the limitations of the algorithm, and how those shortcomings can be addressed. **GitHub link**: https://github.com/JackieLee23/KNN-Tutorial