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Homework answers / question archive / Part 1: Machine Learning Models You work for an office transport company

Part 1: Machine Learning Models You work for an office transport company

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Part 1: Machine Learning Models

You work for an office transport company. You are in discussions with ABC Consulting company for providing transport for their employees. For this purpose, you are tasked with understanding how do the employees of ABC Consulting prefer to commute presently (between home and office). Based on the parameters like age, salary, work experience etc. given in the data set ‘Transport.csv’, you are required to predict the preferred mode of transport. The project requires you to build several Machine Learning models and compare them so that the model can be finalised.

Data Dictionary Age : Age of the Employee in Years
Gender : Gender of the Employee
Engineer : For Engineer =1 , Non Engineer =0
MBA : For MBA =1 , Non MBA =0
Work Exp : Experience in years
Salary : Salary in Lakhs per Annum
Distance : Distance in Kms from Home to Office
license : If Employee has Driving Licence -1, If not, then 0
Transport : Mode of Transport

The objective is to build various Machine Learning models on this data set and based on the accuracy metrics decide which model is to be finalised for finally predicting the mode of transport chosen by the employee.

Questions:

  1. Basic data summary, Univariate, Bivariate analysis, graphs, checking correlations, outliers and missing values treatment (if necessary) and check the basic descriptive statistics of the dataset.

  2. Split the data into train and test in the ratio 70:30. Is scaling necessary or not?

  3. Build the following models on the 70% training data and check the performance of these models on the Training as well as the 30% Test data using the various inferences from the Confusion Matrix and plotting a AUC-ROC curve along with the AUC values. Tune the models wherever required for optimum performance :

  • Logistic Regression Model
  • Linear Discriminant Analysis
  • Decision Tree Classifier – CART model
  • Naïve Bayes Model
  • KNN Model
  • Random Forest Model
  • Boosting Classifier Model using Gradient boost.
  1. Which model performs the best?
  2. What are your business insights?

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