Autoencoder architectures are a type of artificial neural network designed to learn efficient ways of compressing and reconstructing data. They consist of two main parts: an encoder that reduces the input data to a smaller representation, and a decoder that tries to reconstruct the original input from this smaller version. These networks are trained so…
Category: Deep Learning
Deep Belief Networks
Deep Belief Networks are a type of artificial neural network that learns to recognise patterns in data by stacking multiple layers of simpler networks. Each layer learns to represent the data in a more abstract way than the previous one, helping the network to understand complex features. These networks are trained in stages, allowing them…
Recurrent Neural Network Variants
Recurrent Neural Network (RNN) variants are different types of RNNs designed to improve how machines handle sequential data, such as text, audio, or time series. Standard RNNs can struggle to remember information from earlier in long sequences, leading to issues with learning and accuracy. Variants like Long Short-Term Memory (LSTM) and Gated Recurrent Unit (GRU)…
Convolutional Layer Design
A convolutional layer is a main building block in many modern neural networks, especially those that process images. It works by scanning an input, like a photo, with small filters to detect features such as edges, colours, or textures. The design of a convolutional layer involves choosing the size of these filters, how many to…
Semantic Segmentation
Semantic segmentation is a process in computer vision where each pixel in an image is classified into a specific category, such as road, car, or tree. This technique helps computers understand the contents and layout of an image at a detailed level. It is used to separate and identify different objects or regions within an…
Transferable Representations
Transferable representations are ways of encoding information so that what is learned in one context can be reused in different, but related, tasks. In machine learning, this often means creating features or patterns from data that help a model perform well on new, unseen tasks without starting from scratch. This approach saves time and resources…
Neural Network Robustness
Neural network robustness is the ability of a neural network to maintain accurate and reliable performance even when faced with unexpected or challenging inputs, such as noisy data or intentional attacks. Robustness helps ensure that the network does not make mistakes when small changes are made to the input. This is important for safety and…
Neural Network Generalization
Neural network generalisation refers to the ability of a neural network to perform well on new, unseen data after being trained on a specific set of examples. It shows how well the network has learned patterns and rules, rather than simply memorising the training data. Good generalisation means the model can make accurate predictions in…
Low-Rank Factorization
Low-Rank Factorisation is a mathematical technique used to simplify complex data sets or matrices by breaking them into smaller, more manageable parts. It expresses a large matrix as the product of two or more smaller matrices with lower rank, meaning they have fewer independent rows or columns. This method is often used to reduce the…
Sparse Activation Maps
Sparse activation maps are patterns in neural networks where only a small number of neurons or units are active at any given time. This means that for a given input, most of the activations are zero or close to zero, and only a few are significantly active. Sparse activation helps make models more efficient by…