AiForTeens module 5

What is a common AI library used in Python?

• NumPy

• TensorFlow

• Sci-Kit Learn

• All of the above

Answer explanation

NumPy is used for numerical computations, especially with vectors and matrices, TensorFlow is used for deep learning, and Sci-Kit Learn can be used for machine learning in general. All three are commonly used AI libraries in Python, as they help many different parts of the process.

Which is NOT a data type in Python?

• Float

• List

• Operator

• String

Answer explanation

The correct answer is 'Operator'. In Python, there are several data types such as 'Float', 'List', and 'String'. However, 'Operator' is not a data type; it is the term for symbols that perform operations like arithmetic or logic. Examples include "+", "=", ">" and "=="

What is an example of a list we might use with AI?

• The input data

• The number of data points

• The value of the cost function at a certain step

• Whether the cost is minimized or not

Answer explanation

In the context of AI, a list can be used to represent the input data. This is because AI models often require a sequence or collection of data points, which can be effectively structured as a list. This allows the algorithm to iterate through each piece of data for processing.

What would be an example of a function used in AI?

• Polynomial degree

• Learning rate

• The model's predictions

• Gradient descent

Answer explanation

Gradient descent is the only function out of the answer choices above. It is an iterative optimization algorithm that we use to find the minimum of a function - in our case, the cost function. It will then update the parameters of our model, which helps the model 'learn' and make better predictions. The other options, such as "learning rate", represent values that are important to the model, but a function refers to a specific process, not a value.

What is the keyword to bring AI libraries into your python code?

Answer explanation

The keyword to bring AI libraries into your Python code is 'import'. Python uses the 'import' keyword to load libraries and packages. By using this keyword, you can gain access to various functionalities that these libraries offer, including those for AI.