Artificial neural networks have played a significant role in the development of machine learning. Explain what is meant by the term artificial neural network.

Mark scheme

Marking points from the official mark scheme (Oct/Nov 2023). The mark or mark type is shown in brackets.

1. [1] One mark per mark point (Max 4) MP1 An artificial neural network is the component of artificial intelligence that is meant to simulate the functioning of a biological brain.
2. [1] MP2 Artificial neural networks are a key component of machine learning.
3. [1] MP3 They can solve problems that would prove impossible or difficult for humans // Artificial neural networks have self-learning capabilities that enable them to produce better results as more data becomes available
4. [1] MP4 Artificial neural networks can be layered (input, hidden and output layers) // Artificial neural networks have many interconnected layers, some / many of which are hidden
5. [1] MP5 Weights are assigned between nodes
6. [1] MP6 Weights are adjusted through training to give a more accurate result
7. [1] MP7 More complex learning capabilities / more accurate results are available with larger numbers of hidden layers