Isye 6501 midterm 2 Study guides, Class notes & Summaries

GT Students ISYE 6501 - Midterm 1,2 and Final Exam Combined Guide 100% Verified;Actual Questions and Answers 2024

ISYE 6501 - Midterm 2 EXAM QUESTIONS WITH VERIFIED SOLUTIONS 100% LATEST UPDATE When might overfitting occur - ANSWER when the # of factors is close to or larger than the # of data points causing the model to potentially fit too closely to random effects Why are simple models better than complex ones - ANSWER less data is required; less chance of insignificant factors and easier to interpret What is forward selection - ANSWER we select the best new factor and see if it's good ...

ISYE 6501 - Midterm 2 Exam 2024 when might overfitting occur - answerwhen the # of factors is close to or larger than the # of data points causing the model to potentially fit too closely to random effects Why are simple models better than complex ones - answerless data is required; less chance of insignificant factors and easier to interpret what is forward selection - answerwe select the best new factor and see if it's good enough (R^2, AIC, or p-value) add it to our model and fit the ...

ISYE 6501 Midterm 2 Part 1 Questions with 100% correct answers | verified | latest update 2024

ISYE 6501 Midterm Questions and Answers Already Graded A What does SVM stand for? Support Vector Machine Is written text structured or unstructured? Unstructured When we increase the sum of the square of the coefficients we... Decrease the distance between the lines In SVM soft classifier we tradeoff between maximizing ___ and minimizing ___ margin and errors If lambda gets small what gets emphasized, large margin or minimizing training error?, Minimizing errors. What is a support vector? A...

ISYE 6501 - Midterm 2 Questions and Correct Answers

ISYE 6501 - Midterm 2 Question and Correct Answers

ISYE-6501 Midterm Exam QUESTIONS & CORRECT ANSWERS What is modeling? A real life situation expressed as math. What is a classification model? A model that puts things into categories. e.g. a loan applicant classification with a SVM splitting people into 2 buckets - yes and no. What is a data point? A 'row' of data essentially. It is not just one attribute (column) on a row of data. What is Quantitative Data numbers that have meaning What is Categorical Data Non-numeric informa...

ISYE 6501 Midterm 2 Part 1 Latest 2023 Rated A greedy algorithm at each step, the algorithm does the thing that looks best without taking future options into consideration; more classical variable selection methods stepwise - (forward, backward, combination) lasso elastic net available metrics for variable selection criteria p-value r2 AIC / BIC lasso Giving regression a budget to use on coefficients which it uses on most important coefficients Have to scale first elastic net constrain combi...

ISYE 6501 Midterm 2 Part 1 with 100% correct answers