ISYE 6501

ISYE 6501-HOMEWORK 4 GEORGIA INSTITUTE OF TECHNOLOGY 2023 NEW SOLUTION UPDATE

Midterm Quiz 2 - Verified MM Learners Midterm Quiz 2 due Apr 12, 2021 15 00 HKT Completed 90 Minute Time Limit Instructions Work alone. Do not collaborate with or copy from anyone else. Work the problems in any order you wish, but submit each answer before ending the exam. You may use any of the following resources: One sheet (both sides) of handwritten (not photocopied or scanned) notes If any question seems ambiguous, use the most reasonable interpretation (i.e. don't be like Calvin...

ISYE 6501 Midterm Quiz 2 with all the Correct Answers(Graded A+) Overfitting Correct Answer: If you have less data than features, what is likely to occur? Fitting random effects Correct Answer: What can too many factors lead to? Simple Models Correct Answer: Reducing variables will result in Forbidden Factors Correct Answer: Things that cannot be used due to legal requirements Exploration Correct Answer: Gathering more data to develop a better model Exploitation Correct An...

Week 5 Notes Variable Selection what do we do with a lot of factors in our models? variable selection helps us choose the best factors for our models variable selection can work for any factor based model - regression / classification why do we not want a lot of factors in our models? - overfitting: when the number of factors is close or larger than number of data points our model will overfit - overfitting: model capturesthe random effect of our data instead of the real effects too many...

Question 2 2.19/3.0 points (graded) Select all of the following models that are designed for use with time series data: k-nearest-neighbor Principal component analysis ARIMA k-means CUSUM Logistic regression GARCH Exponential smoothing Random forest Linear regression Support vector machine

This is the beginning of Midterm Quiz 2. Please make sure that you submit all your answers before the time runs out. Once you submit an answer to a question, you cannot change it. There is no overall Submit button. After submitting all answers, please click the "End my Exam" button, above, before exiting from ProctorTrack to complete your exam. Information for Question 1 There are five questions labeled "Question 1." Answer all five questions. For each of the following five questions,...

Question 1 9 / 13 pts 1. For each of the 13 models/methods, select the choice that includes the category of question it is commonly used for. For models/methods that have more than one correct category, the one it is most commonly used for; for models/methods that have no correct category listed, select "None". i. ARIMA Response prediction ii. CART Classification and Response prediction iii. Cross validation Validation iv. CUSUM None of the other choices v. Exponential smoothing Respo...

Questions 2a, 2b 5.0/10.0 points (graded) Five classi�cation models were built for predicting whether a neighborhood will soon see a large rise in home prices, based on public elementary school ratings and other factors. The training data set was missing the school rating variable for every new school (3% of the data points). Because ratings are unavailable for newly-opened schools, it is believed that locations that have recently experienced high population growth are more likely to have...

Question 1 1.4/1.4 points (graded) Number of days in a year where the temperature is more than 3 degrees higher than forecast Binomial You have used 1 of 1 attempt Question 1 1.4/1.4 points (graded) Number of phone calls made by a telemarketer until one is answered Geometric You have used 1 of 1 attempt Question 1 1.4/1.4 points (graded) Time from the beginning of Fall until the first snowflake is seen Weibull You have used 1 of 1 attempt Question 1 1.4/1.4 points (graded) Time ...