ADAHESSIAN

AdaHessian: A Revolutionary Optimization Method in Machine Learning AdaHessian is a cutting-edge optimization method that has recently gained widespread attention in the field of machine learning. This method outperforms other adaptive optimization methods on a variety of tasks, including Computer Vision (CV), Natural Language Processing (NLP), and recommendation systems. It achieves state-of-the-art results with a large margin as compared to the popular optimization method ADAM. How AdaHessi

Adam

Adam is an adaptive learning rate optimization algorithm that combines the benefits of RMSProp and SGD with Momentum. It is designed to work well with non-stationary objectives and problems that have noisy and/or sparse gradients. How Adam Works The weight updates in Adam are performed using the following equation: $$ w_{t} = w_{t-1} - \eta\frac{\hat{m}\_{t}}{\sqrt{\hat{v}\_{t}} + \epsilon} $$ In this equation, $\eta$ is the step size or learning rate, which is typically set to around 1e-3.

Adversarial Model Perturbation

What is AMP? AMP stands for Adversarial Model Perturbation, which is a technique used to improve the generalization of machine learning models. Essentially, machine learning models are trained to make predictions based on a set of input data. However, if the model is trained too specifically on the training data, it may not perform well on new, unseen data. This is known as overfitting. AMP is designed to help prevent overfitting by seeking out the most challenging cases for the model to learn

Alternating Direction Method of Multipliers

The alternating direction method of multipliers (ADMM) is an algorithm that can solve complex optimization problems. It does this by breaking the bigger problem down into smaller, more manageable parts. These smaller problems are easier to solve and when put together, they provide a solution to the overall problem. What is ADMM? ADMM is a way to solve problems where there are a large number of variables and constraints. It works by dividing the problem into smaller subproblems, each with its

Distributed Any-Batch Mirror Descent

DABMD: An Overview of Distributed Any-Batch Mirror Descent If you've ever waited for slow internet to load a webpage, you know the feeling of frustration that comes with waiting for information to be transferred between nodes on a network. In distributed online optimization, this waiting can be particularly problematic. That's where Distributed Any-Batch Mirror Descent (DABMD) comes in. DABMD is a method of distributed online optimization that uses a fixed per-round computing time to limit the

Gradient-based optimization

The GBO Algorithm: A Novel Metaheuristic Optimization Algorithm The Gradient-based Optimizer (GBO) is an optimization algorithm inspired by the Newton’s method. It is a metaheuristic algorithm that provides solutions to complex real-world engineering problems. The GBO uses two main operators, including the Gradient Search Rule (GSR) and Local Escaping Operator (LEO) to explore the search space. The GSR employs the gradient-based method to enhance the exploration tendency and accelerate the conv

Gradient Clipping

Gradient clipping is a technique used in deep learning to help optimize the performance of neural networks. The problem that arises with optimization is that the large gradients can lead an optimizer to wrongly update the parameters to a point where the loss function becomes much greater. This makes the solution ineffective, undoing much of the important work. What is Gradient Clipping? Gradient Clipping is a technique that ensures optimization runs more reasonably around the sharp areas of t

Gradient Sparsification

Overview of Gradient Sparsification Gradient Sparsification is a technique used in distributed machine learning to reduce the communication cost between multiple machines during training. This technique involves sparsifying stochastic gradients, which are used to calculate the weights of the machine learning model. By reducing the number of coordinates in the stochastic gradient, Gradient Sparsification can significantly decrease the amount of data that needs to be communicated between machines

Grammatical evolution and Q-learning

Grammatical evolution and Q-learning are two powerful techniques in the field of artificial intelligence. Grammatical evolution is a method used to evolve a grammar for building an intelligent agent while Q-learning is used in fitness evaluation to allow the agent to learn from its mistakes and improve its performance. What is Grammatical Evolution? Grammatical evolution is a search algorithm used to generate computer programs using a set of rules, also known as a grammar. The input to the al

Harris Hawks optimization

The Basics of Harris Hawks Optimization (HHO) Harris Hawks Optimization (HHO) is a type of optimization algorithm inspired by the hunting behavior of Harris Hawks in nature. This algorithm is a popular swarm-based, gradient-free optimization algorithm that uses cooperative behavior and chasing styles of Harris Hawks to achieve high-quality results by exploring and exploiting the search space in a flexible and efficient way. HHO was published in the Journal of Future Generation Computer Systems

Hunger Games Search

Overview of Hunger Games Search (HGS) Hunger Games Search (HGS) is a new optimization technique that aims to find solutions to a broad range of problems efficiently. It is simple to understand and has many potential applications in various fields, including computer science, engineering, finance, and more. Understanding the Concept behind HGS The HGS algorithm is based on the theory that hunger is a critical motivator for animals. Hunger drives them to make certain decisions, take specific a

Hybrid Firefly and Particle Swarm Optimization

Hybrid Firefly and Particle Swarm Optimization (HFPSO) is a powerful optimization algorithm that combines the best features of firefly and particle swarm optimization. What is Optimization? Optimization is the process of finding the best solution to a given problem given certain constraints. There are many different optimization algorithms that can be used to solve a wide variety of problems in fields such as engineering, finance, and computer science. What is Firefly Optimization? Firefly

Local SGD

Local SGD is an advanced technique used in machine learning that helps to speed up the training process by running stochastic gradient descent (SGD) on different machines in parallel. This technique allows the process to be distributed and carried out on multiple workers, effectively reducing the amount of time required to train complex machine learning models. What is Local SGD? Local SGD is a type of distributed training technique that can be used in machine learning to train models using s

Natural Gradient Descent

Natural Gradient Descent: An Overview Have you ever heard of optimization methods? Optimization methods are techniques used in machine learning to find the best possible solution for a given problem. One of these methods is called Natural Gradient Descent (NGD), which is an approximate second-order optimization method. In this article, we will explore what NGD is and how it works, so let's dive in! The Basics of Natural Gradient Descent NGD is a technique used for optimization problems in wh

Neural adjoint method

Neural Adjoint: An Overview Neural adjoint is a method used for inverse modeling, which involves finding the inputs to a model that give a desired output. This method involves training a neural network to approximate the forward model, and then using the partial derivative of the output with respect to the inputs to adjust the inputs and achieve the desired output. The NA Method The NA method involves two steps. The first step is conventional, and involves training a neural network on a data

Population Based Training

Overview of Population Based Training (PBT) In the field of artificial intelligence and machine learning, Population Based Training (PBT) is a powerful method for finding optimal parameters and hyperparameters. It is an extension of parallel and sequential optimization methods, which allow for concurrent exploration of the solution space. PBT works by sharing information and transferring parameters between different optimization processes in a population. This makes the system more efficient an

PowerSGD

Overview of PowerSGD: A Distributed Optimization Technique If you're someone who is interested in the field of machine learning, you may have come across PowerSGD. PowerSGD is a distributed optimization technique used to approximate gradients during the training phase of a model. It was introduced in 2018 by DeepMind, an artificial intelligence research lab owned by Google. Before understanding what PowerSGD does, you need to have a basic understanding of what an optimization algorithm is. In

Rung Kutta optimization

RUNge Kutta Optimizer (RUN) – A Novel Metaphor-Free Population-Based Optimization Method The optimization field is constantly evolving, with researchers developing new and advanced algorithms to solve complex problems. However, some of these algorithms do not contribute much to the optimization process but rely on metaphors and mimic animals' searching trends. These clichéd methods suffer from locally efficient performance, biased verification methods, and high similarity between their componen

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