Classification algorithms

Large margin nearest neighbor

Large margin nearest neighbor (LMNN) classification is a statistical machine learning algorithm for metric learning. It learns a pseudometric designed for k-nearest neighbor classification. The algorithm is based on semidefinite programming, a sub-class of convex optimization. The goal of supervised learning (more specifically classification) is to learn a decision rule that can categorize data instances into pre-defined classes. The k-nearest neighbor rule assumes a training data set of labeled instances (i.e. the classes are known). It classifies a new data instance with the class obtained from the majority vote of the k closest (labeled) training instances. Closeness is measured with a pre-defined metric. Large margin nearest neighbors is an algorithm that learns this global (pseudo-)metric in a supervised fashion to improve the classification accuracy of the k-nearest neighbor rule. (Wikipedia).

Large margin nearest neighbor
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From playlist Nearest Neighbour Methods

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From playlist One-sided Limits

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Members' Seminar Topic: Convergence of nearest neighbor classification Speaker: Sanjoy Dasgupta Affiliation: University of California, San Diego; Member, School of Mathematics Date: November 25, 2019 For more video please visit http://video.ias.edu

From playlist Mathematics

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From playlist Advanced Information Retrieval 2021 - TU Wien

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The code is accessible at https://github.com/sepinouda/Machine-Learning/

From playlist Machine Learning Course

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Lecture Notes: http://www.cs.cornell.edu/courses/cs4780/2018fa/lectures/lecturenote13.html http://www.cs.cornell.edu/courses/cs4780/2018fa/lectures/lecturenote14.html

From playlist CORNELL CS4780 "Machine Learning for Intelligent Systems"

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From playlist Number: Rounding & Estimation

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From playlist Mathematics

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From playlist CORNELL CS4780 "Machine Learning for Intelligent Systems"

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Related pages

Slack variable | Pseudometric space | Convex optimization | Hinge loss | Nearest neighbor search | Linear discriminant analysis | Learning vector quantization | Cross-validation (statistics) | Neighbourhood components analysis | Predictive analytics | Semidefinite programming | Ellipsoid | Algorithm | Cluster analysis | Data mining