Assignment#3 - Nina Kazarov.docx - DSC441 Fall 2018...

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DSC441- Fall 2018, Assignment 3, Page 1 of 18 Assignment 3 – NINA KAZAROV Due Date: Monday, October 22nd, by midnight Total number of points: 55 points plus 5 for extra credit Problem 1 (20 points): This problem illustrates the classification approach by using decision trees and the Lupus data (you can download the data file “sledata” from D2L site, course documents for week 6). The data consists of 300 patient records. Each record contains 12 elements. The first 11 elements stand for different symptoms and the final element of each record indicates the diagnosis. Build a decision tree and report:
DSC441- Fall 2018, Assignment 3, Page 2 of 18
DSC441- Fall 2018, Assignment 3, Page 3 of 18 1) The decision tree and the criteria used for building the tree for deciding the best split and the stopping condition (such as which impurity measure, how many cases for parents and children per node, etc)

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