What is QHAdam?
QHAdam stands for Quasi-Hyperbolic Momentum Algorithm. It is an algorithm that improves upon the Adam optimization algorithm by using quasi-hyperbolic terms instead of Adam's moment estimators. QHAdam is a simple alteration of the momentum SGD, where the plain SGD step is averaged with a momentum step.
How Does QHAdam Work?
QHAdam is a weighted average of the momentum and plain SGD. It takes into account the current gradient with an immediate discount factor, divided by a wei
Quasi-Hyperbolic Momentum (QHM) is a technique used in stochastic optimization to improve momentum SGD (Stochastic Gradient Descent). This is achieved by combining an SGD step with a momentum step. In other words, QHM changes momentum SGD by averaging the SGD step and momentum step.
Understanding QHM
Before delving into QHM, it is necessary to understand what momentum SGD is. Momentum SGD is a popular optimization algorithm used in machine learning that accelerates SGD by adding momentum. Thi
Understanding Quadratic Discriminant Analysis: Definition, Explanations, Examples & Code
Quadratic Discriminant Analysis (QDA) is a dimensionality reduction algorithm used for classification tasks in supervised learning. QDA generates a quadratic decision boundary by fitting class conditional densities to the data and using Bayes’ rule. As a result, QDA is a useful tool for solving classification problems with non-linear decision boundaries.
Quadratic Discriminant Analysis: Introduction
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Overview of QuantTree
QuantTree is a nonparametric statistical testing technique that constructs a histogram from a set of data points. It recursively splits a multi-dimensional space, such as $\mathbb{R}^d$, based on a stochastic process that determines the proportion of data points in each bin.
This method was developed to examine whether a batch of data is drawn from an unknown $d$-variate probability distribution, $\phi_0$, or not. It uses test statistics, like the Pearson statistic, which
In the world of machine learning, QRNN, or Quasi-Recurrent Neural Network, is a type of recurrent neural network that is incredibly fast and efficient compared to other models like LSTMs. Instead of relying entirely on recurrent layers, QRNNs alternate between convolutional layers and a minimalist recurrent pooling function, allowing them to be up to 16 times faster at train and test time than LSTMs. In this article, we'll explore how QRNNs work, their advantages, and their potential use cases.
Question Answering is a type of machine learning task that involves answering questions based on a given context. The task is typically performed on reading comprehension questions, where an AI system is trained to read a passage of text and answer questions related to that passage.
Types of Question Answering
Question answering can be segmented into various types, including domain-specific tasks like community question answering and knowledge-base question answering. In a community question
Overview of Question Quality Assessment
Question quality assessment is the process of evaluating whether a question is of high quality or not. It is important to ensure that the question meets certain criteria to ensure that it can be used to elicit useful information from people who attempt to answer it. In this process, subjective question-answering algorithms are used to evaluate the question and determine if it needs to be edited or flagged.
Why is Question Quality Important?
Ensuring qu
Quick Attention: Giving Your Images the Focus They Deserve
When you look at an image, what do your eyes naturally gravitate towards? For some, it may be the most vibrant color or the largest object. For others, it may be the subject in the center of the frame. This phenomenon is what Quick Attention (QA) aims to replicate in neural networks.
What is Quick Attention?
Quick Attention is a process that takes in an input image and generates an attention map that highlights the most informative r
Introduction to R-CNN
R-CNN, or Regions with CNN Features, is a popular object detection model that uses deep learning to identify and locate objects within an image. It has been widely used in computer vision applications, including autonomous driving, facial recognition, and robotics.
What is Object Detection?
Object detection is the process of identifying objects within an image and locating them with a bounding box. This task is challenging because objects can vary in size, shape, and or
R1 Regularization Overview
When it comes to the world of machine learning, there are a plethora of methods and techniques used to optimize algorithms and create highly accurate models. One such technique is called R1 Regularization. In simple terms, R1 Regularization is a way to make sure that the model being trained doesn't overfit to the training data, which can result in poor performance on new data.
The regularization technique is commonly used in generative adversarial networks (GANs) in
The R(2+1)D convolutional neural network is a specialized network developed for action recognition that utilizes R(2+1)D convolutions in a ResNet-inspired architecture. It has become increasingly popular in the field of computer vision due to its ability to reduce computational complexity, prevent overfitting, and provide better functional relationships. Understanding the technological advancements behind the R(2+1)D network is essential in comprehending the intricacies of this revolutionary neu
Rectified Adam, also known as RAdam, is a modification of the Adam stochastic optimizer, which aims to solve the bad convergence problem experienced by Adam. It does so by rectifying the variance of the adaptive learning rate.
The Problem with Adam
The authors of RAdam contend that the primary issue with Adam is its adaptive learning rate's undesirably high variance in the early stages of model training due to the low number of training samples. This characteristic of Adam often leads to bad
Understanding Radial Basis Function Network: Definition, Explanations, Examples & Code
The Radial Basis Function Network (RBFN) is a type of Artificial Neural Network that uses radial basis functions as activation functions. It is a supervised learning algorithm, which means that it requires input and output data to train the network. The RBFN is known for its ability to approximate any function to arbitrary levels of accuracy and is commonly used for function approximation, classification, and
RAG, short for Retriever-Augmented Generation is a language generation model that is a combination of pre-trained parametric and non-parametric memories. With RAG, users are presented with an efficient and comprehensive system for generating language content.
What is RAG?
RAG is a language generation model that can generate human-like text, even out of context, by combining a pre-trained seq2seq model, and a dense vector index of information from Wikipedia accessed through a pre-trained neura
Rainbow DQN: An Improved Learning Algorithm for Reinforcement Learning
Reinforcement learning is a subfield of machine learning that deals with how an agent interacts with an environment to achieve a specific goal. One of the most popular methods for reinforcement learning is Deep Q-Networks (DQN). However, DQN has been found to have certain limitations, including overestimation bias and inefficiency in prioritizing experiences. A team of researchers sought to improve upon the performance of DQ
RandAugment: A Method for Automated Data Augmentation
Data augmentation is a technique used in machine learning where additional training data is created from existing data by applying various transformations, such as flipping, rotating, or changing contrast. This helps to improve the performance of machine learning models by providing them with more diverse and representative examples to learn from. However, manually applying these transformations to a large dataset can be time-consuming and e
What is REM?
If you have ever heard of machine learning or deep reinforcement learning, you may have come across a term called Random Ensemble Mixture (REM). But what is REM and how does it work? In simple terms, REM is an extension of the Deep Q-Network (DQN) algorithm for deep reinforcement learning inspired by a technique called Dropout.
DQN is a popular algorithm in deep reinforcement learning that uses artificial neural networks to learn a policy that maximizes the expected reward in a gi
What is Random Erasing in Machine Learning?
Random Erasing is a data augmentation technique used in machine learning to train computer models to recognize objects in images. Specifically, it is a method used for training convolutional neural networks (CNN). It randomly selects a rectangular region in an image and erases the pixels in that region with random values. This creates a level of occlusion in the images, forcing the network to recognize objects even when they are partially obscured. In