> Artificial Neural Networks Are Inspired By Biological Neural Networks Just like biological neural network, artificial neural network is **constantly learning and updating its knowledge and understanding of the environment based on experiences that it encountered.** > An artificial neural network is simply a set of mathematical algorithms that work together to perform operations on the input. These operations then produce an output. ![[Pasted image 20210914110011.png]] Artificial Neural Network (ANN) = Mathematically interconnected formulae ### Why use Neural Networks - Understand relationships b/w complex data structures, using trained knowledge to make prediction on the behavior of complex systems - Predict linear and non-liner relationships in data - Process information to help make complex decisions fast ### Challenges - Explainability - Slower thn most machine algorithms - over-fitting the training data