Introduction to Multi-criteria Decision AnalysisUnit 6: Introduction to Machine Learning for Decision SupportLeonardo Tomazeli Duarte [email protected]School of Applied Sciences (FCA) University of Campinas (UNICAMP)
Decision systems based on data Machine learning - Unit 6 •In many situations, the decision maker disposes of a set of data that was previously collected •Example: how to decide to hire someone, based on previous experiences, in order to minimize turnovers? •This is a classical problem of machine (statistical) learning 2 Classification System Number of children Salary Age Recommend (or not) hiring
Decision systems based on data Machine learning - Unit 6 •The classification problem: assign classes to a set of samples based on a set of attributes •There are two strategies: •Supervised classification: a set of training points is available for adjusting the classifier •Unsupervised classification: no training points are available (Clustering) 3
Decision systems based on data Machine learning - Unit 6 •Example: classifying types of fish (salmon and sea bass) •This is an easy task for the human brains •How to do it in an automatic way?