AiForTeens module 2

What is regression used for?

• Estimating a continuous variable for a new input

• Classifying a new input into two specific categories

• Clustering multiple similar data points together

• Estimating a discrete variable that can take on more than two values

What might be a good type of machine learning to use for trying to determine if a picture is of an apple, tomato, or pear?

• Clustering

• Classification

• Regression

• Anomaly Detection

(Review) What are the two types of unsupervised learning?

• Clustering and Classification

• Anomaly detection and Regression

• Clustering and Reinforcement Learning

• Clustering and Anomaly Detection

How do we tell how well a model does on a specific dataset?

• Compare the shortest distance from each point to the line

• Compare the vertical distance from each point to the line

• Use a deep learning framework to evaluate it

• Ask ChatGPT, because AI is best for AI

What is the critical step of gradient descent?

• Finding the direction to adjust w and b

• Calculating the cost function

• Setting the learning rate

• Training a neural network