Assignment 02 solution

Programming Exercise













Up to this point we’ve been looking at only two features at a time. We’ve done this largely so that we can visualize the decision boundary. With only two features, the decision boundary is a line in the plane defined by the two features.



The models we’ve looked at so far (Perceptron, Adaline, and Logistic Regression are applicable to any number of features.













































The City College of New York

CSc 59929 – Introduction to Machine Learning 2 Spring 2020 – Erik K. Grimmelmann, Ph.D.
Programming Exercise







Using the Iris dataset, focus on the species Iris-setosa and Iris-versicolor. These two classes are not linearly separable when you use only the two features petal length and sepal length.



Train the Adaline learning model using the following



All six cases of using two features at a time.



All four cases of using three features at a time.



The one case of using all features at once.



Do not use Scikit learn for this assignment. You may, if you want, use the sample code that I’ve posted to Blackboard.
























The City College of New York

CSc 59929 – Introduction to Machine Learning 3 Spring 2020 – Erik K. Grimmelmann, Ph.D.
Programming Exercise







Summarize your results (i.e, what’ s the best accuracy you can obtain for each of the 11 cases you considered) in a table.



Discuss your findings. Does using more dimensions help when trying to classify the data in this dataset?



Include all of your analysis and discussion in your .ipynb file and submit the file through Blackboard. The name of your file should be



firstname_lastname_AS02.ipynb




Do not clear your results after you last run so that I well be able to see your results without rerunning your file.












The City College of New York

CSc 59929 – Introduction to Machine Learning 4 Spring 2020 – Erik K. Grimmelmann, Ph.D.
Programming Exercise
















If you collaborate with anyone on this assignment, be sure to follow the collaboration guidelines in the syllabus.















































































The City College of New York

CSc 59929 – Introduction to Machine Learning 5 Spring 2020 – Erik K. Grimmelmann, Ph.D.