Data Science 🐍 Regression

The video tutorial covers various regression models, starting with linear regression using Numpy and stats models, followed by polynomial and nonlinear regression techniques. It introduces machine learning models like K nearest neighbors and support vector regressors using Scikit-learn. The tutorial also explores deep learning with Gecko and neural networks. A hands-on activity with TCC lab demonstrates practical regression analysis.

What is the primary goal when fitting a linear model to data?

• Minimize the R-squared value

• Maximize the R-squared value

• Minimize the sum of squared errors

• Maximize the sum of squared errors

Which of the following is a common measure to evaluate the fit of a linear model?

• Adjusted Mean Error

• Root Mean Square Error

• R-squared value

• Mean Absolute Error

In polynomial regression, what does increasing the order of the polynomial potentially lead to?

• Improved generalization

• Overfitting

• Underfitting

• Reduced complexity

What is a key challenge when performing nonlinear regression?

• Maximizing the R-squared value

• Ensuring convergence of the model

• Choosing the correct polynomial degree

• Minimizing the number of parameters

Which tool is commonly used for nonlinear regression in Python?

• Matplotlib Plot

• Pandas DataFrame

• Scipy Optimize Curve Fit

• Numpy Polyfit

What is the primary function of K-nearest neighbors in machine learning?

• To reduce dimensionality

• To cluster data points

• To predict continuous values

• To classify data into categories

Which of the following is a characteristic of a neural network model?

• It uses a single layer of neurons

• It can have multiple hidden layers

• It is only used for classification

• It relies on decision trees

What is the purpose of using a solver like BFGS in neural networks?

• To optimize the learning rate

• To reduce the number of layers

• To initialize weights

• To find the best fit for the model

In the TC Lab activity, what is the purpose of setting different heater values?

• To test the effect of temperature on regression

• To simulate different environmental conditions

• To create a controlled experiment for data collection

• To calibrate the sensors

What is a potential benefit of using deep learning models like Gecko?

• They require less data for training

• They are easier to interpret

• They can capture complex patterns in data

• They are faster to train than linear models