There are a bunch of algorithms presented in this book that can be used to solve real-world problems. This chapter is about some practical considerations the algorithms presented in this book.

This chapter is organized as follows. We will start with an introduction. Then, we will present the important topic of the explainability of an algorithm, which is the degree to which the internal mechanics of an algorithm can be explained in understandable terms. Then, we will present the ethics of using an algorithm and the possibility of creating biases when implementing them. Next, the techniques for handling NP-hard problems are discussed. Finally, we will look into factors that should be considered before choosing an algorithm. 

By the end of this chapter, you will have learned about the practical considerations that are important to keep in mind when using algorithms. 

In this chapter, we will cover the following topics:

• Introducing practical considerations
• The explainability of an algorithm
• Understanding ethics and algorithms
• Reducing bias in models
• Tackling NP-hard problems
• When to use algorithms

Let's start with the introduction,