PPT-Discriminative classifiers:

Logistic Regression SVMs CISC 5800 Professor Daniel Leeds Maximum A Posteriori a quick review Likelihood Prior Posterior Likelihood x prior MAP estimate   Choose and to give the prior belief of Heads bias . Tom M Mitchell All rights reserved DRAFT OF January 19 2010 PLEASE DO NOT DISTRIBUTE WITHOUT AUTHORS PERMISSION This is a rough draft chapter intended for inclusion in a possible second edition of the textbook Machine Learn ing TM Mitchell McGraw H Handshapes that represent people, objects, and descriptions.. Note: You cannot use the classifier without naming the object first.. Types of Classifiers. We will look at the types of classifiers . Size and Shape . Ludmila. I . Kuncheva. School of Computer Science. Bangor University, UK. Are we still talking about diversity in classifier ensembles?. Ludmila. I . Kuncheva. School of Computer Science. Bangor University, UK. Ludmila. I . Kuncheva. School of Computer Science. Bangor University, UK. Publications (580). Citations (4594). “CLASSIFIER ENSEMBLE DIVERSITY”. Search on 10 Sep 2014. MULTIPLE CLASSIFIER SYSTEMS 30. Author: Yang Song et al. (Google). Presenters:. Phuc Bui & Rahul . Dhamecha. 1. Introduction. Taxonomic classification . for . web-based videos. Web-based Video Classification. Web-based . Video (e.g. . Lifeng. Yan. 1361158. 1. Ensemble of classifiers. Given a set . of . training . examples, . a learning algorithm outputs a . classifier which . is an hypothesis about the true . function f that generate label values y from input training samples x. Given . Towards Bridging Semantic Gap and Intention Gap in Image Retrieval. Hanwang. Zhang. 1. , . Zheng. -Jun Zha. 2. , Yang Yang. 1. , . Shuicheng. Yan. 1. , . Yue. Gao. 1. , Tat-. Seng. Chua. 1. 1: National University of Singapore. . Nathalie Japkowicz. School of Electrical Engineering . & Computer Science. . University of Ottawa. nat@site.uottawa.ca. . Motivation: My story. A student and I designed a new algorithm for data that had been provided to us by the National Institute of Health (NIH).. . Nathalie Japkowicz. School of Electrical Engineering . & Computer Science. . University of Ottawa. nat@site.uottawa.ca. . Motivation: My story. A student and I designed a new algorithm for data that had been provided to us by the National Institute of Health (NIH).. BHSAI. Jinbo. Bi, . Ph.D.. HR. SBP. SpO2. MAP. DBP. RR. 0. 2. 4. 6. 8. 10. 12. 14. 16. Time (min). HR. RR. SBP. SpO2. MAP. DBP. 60. 100. 140. 80. 100. 40. 120. 200. 20. 40. 60. 80. mmHg. . % . bpm. Generative vs. Discriminative models. Christopher Manning. Introduction. So far we’ve looked at “generative models”. Language models, Naive Bayes. But there is now much use of conditional or discriminative probabilistic models in NLP, Speech, IR (and ML generally). Logistic Regression, SVMs. CISC 5800. Professor Daniel Leeds. Maximum A Posteriori: a quick review. Likelihood:. Prior: . Posterior Likelihood x prior = . MAP estimate:. . .  . Choose . and . to give the prior belief of Heads bias . Logistic Regression. Important analytic tool in natural and social sciences. Baseline supervised machine learning tool for classification. Is also the foundation of neural networks. Generative and Discriminative Classifiers. Logistic Regression, SVMs. CISC 5800. Professor Daniel Leeds. Maximum A Posteriori: a quick review. Likelihood:. Prior: . Posterior Likelihood x prior = . MAP estimate:. . .  . Choose . and . to give the prior belief of Heads bias .