TryHackme’s Advent of Cyber 2023 — Day 14 Writeup

Machine learning The Little Machine That Wanted to Learn

Learning Objectives

- What is machine learning?

- Basic machine learning structures and algorithms

- Using neural networks to predict defective toys

Zero to Hero on Artificial Intelligence

• Genetic algorithm: This ML structure aims to mimic the process of natural selection and evolution. By using rounds of offspring and mutations based on the criteria provided, the structure aims to create the “strongest children” through “survival of the fittest”.
• Particle swarm: This ML structure aims to mimic the process of how birds flock and group together at specific points. By creating a swarm of particles, the structure aims to move all the particles to the optimal answer’s grouping point.
• Neural networks: This ML structure is by far the most popular and aims to mimic the process of how neurons work in the brain. These neurons receive various inputs that are then transformed before being sent to the next neuron. These neurons can then be “trained” to perform the correct transformations to provide the correct final answer.