Cross-validation techniques are methods used to assess how well a machine learning model will perform on information it has not seen before. By splitting the available data into several parts, or folds, these techniques help ensure that the model is not just memorising the training data but is learning patterns that generalise to new data….
Category: Model Optimisation Techniques
Robust Optimization
Robust optimisation is a method in decision-making and mathematical modelling that aims to find solutions that perform well even when there is uncertainty or variability in the input data. Instead of assuming that all information is precise, it prepares for worst-case scenarios by building in a margin of safety. This approach helps ensure that the…
Invariant Risk Minimization
Invariant Risk Minimisation is a machine learning technique designed to help models perform well across different environments or data sources. It aims to find patterns in data that stay consistent, even when conditions change. By focusing on these stable features, models become less sensitive to variations or biases present in specific datasets.
Pruning-Aware Training
Pruning-aware training is a machine learning technique where a model is trained with the knowledge that parts of it will be removed, or pruned, later. This helps the model maintain good performance even after some connections or neurons are taken out to make it smaller or faster. By planning for pruning during training, the final…
Model Compression
Model compression is the process of making machine learning models smaller and faster without losing too much accuracy. This is done by reducing the number of parameters or simplifying the model’s structure. The goal is to make models easier to use on devices with limited memory or processing power, such as smartphones or embedded systems.
Sparse Coding
Sparse coding is a technique used to represent data, such as images or sounds, using a small number of active components from a larger set. Instead of using every possible feature to describe something, sparse coding only uses the most important ones, making the representation more efficient. This approach helps computers process information faster and…
Normalizing Flows
Normalising flows are mathematical methods used to transform simple probability distributions into more complex ones. They do this by applying a series of reversible steps, making it possible to model complicated data patterns while still being able to calculate probabilities exactly. This approach is especially useful in machine learning for tasks that require both flexible…
Proximal Policy Optimization (PPO)
Proximal Policy Optimization (PPO) is a type of algorithm used in reinforcement learning to train agents to make good decisions. PPO improves how agents learn by making small, safe updates to their behaviour, which helps prevent them from making drastic changes that could reduce their performance. It is popular because it is relatively easy to…
Temporal Difference Learning
Temporal Difference Learning is a method used in machine learning where an agent learns how to make decisions by gradually improving its predictions based on feedback from its environment. It combines ideas from dynamic programming and Monte Carlo methods, allowing learning from incomplete sequences of events. This approach helps the agent adjust its understanding over…
Active Learning
Active learning is a machine learning method where the model selects the most useful data points to learn from, instead of relying on a random sample of data. By choosing the examples it finds most confusing or uncertain, the model can improve its performance more efficiently. This approach reduces the amount of labelled data needed,…