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A4.4.2 Ethical aspects of computer technologies in daily life
Computer technology is woven ever more tightly into daily life, and each new capability brings ethical questions that did not exist before. The previous page looked at the ethics of the machine learning...
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A4.4.1 Ethical implications of machine learning
Machine learning is already used to decide who gets a loan, what news people see and how a self-driving car reacts. Because these systems affect real lives, their use raises ethical questions, and the...
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A 4.3.10 Model selection
The earlier pages in this option built up a collection of machine learning models, from linear regression through to convolutional neural networks. Knowing how each one works is only half the job. The...
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A4.3.9 Convolutional Neural Networks (CNNs)
A convolutional neural network, or CNN, is the kind of neural network built for images. A standard multi-layer perceptron has to flatten an image into a single line of pixels before it can read it, which...
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A4.3.7 Genetic Algorithms
A genetic algorithm borrows its method from evolution. Instead of learning from a dataset, it starts with a set of possible solutions to a problem and improves them over many generations, keeping the...
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A4.3.6 Reinforcement Learning
Reinforcement learning is the third approach to machine learning, and it works quite unlike the others. There is no dataset of labelled examples and no pile of unlabelled data to sort. Instead there is...
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A4.3.2 Classification Techniques
Linear regression predicts a number. Classification answers a different kind of question: not how much, but which kind. A classification model takes a new observation and assigns it to one of a fixed...
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A4.3.1 Linear regression
Linear regression is the first predictive model in the machine learning section, and it is the one worth understanding thoroughly, because the ideas behind it carry over to almost everything that follows....
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A 1.2.1-2 Representing Data (Archive)
This section explores how computers represent data. We'll examine common number systems (binary, hexadecimal, decimal) and conversion methods. Then, we'll dive into how computers use binary to store various...
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A 1.3.1 - 7 Operating and Control Systems (Archive)
Explore the core role of operating systems (OS) in managing computer resources like memory and processors. Learn how they simplify interaction with hardware, ensuring efficient operation. We'll cover...