Wiki

Structural risk is a compromise between empirical risk and expected risk. A regularization term (penalty term) is added after the empirical risk function to obtain structural risk.

Structural risk minimization (SRM) is an inductive principle in machine learning. It is often used as a strategy to prevent overfitting.

The squeeze function is a function that squeezes a larger range of input into a smaller range. It is often used as an activation function.

Weighted voting is a voting method that takes weights into account.

Neighbor Component Analysis (NCA) is a distance measurement learning method associated with KNN (K Nearest Neighbors), which belongs to supervised learning methods. It was first proposed by Goldberger et al. in 2004.

The intra-class scatter matrix represents the scatter of each sample point around the mean.

Comprehensibility refers to how easy something is to understand, mainly whether it is easy for readers to understand.

Polarity detection is the process of classifying the sentiment polarity of text in natural language.

The activation function is a dynamic principle that is often used in neural network models. It defines how a neuron changes its activation value based on the activity of other neurons. The general activation function depends on the weights in the network, which can introduce nonlinear factors and is often used to solve problems that cannot be solved with linear equations.

A parse tree, also called a concrete syntax tree, is a representation of the results of a syntax analysis, which represents the grammatical structure of a language in a tree shape.

Structure is a method of displaying a neural network topology diagram, which is often used in the field of neural networks. In a neural network, variables can be the weights and incentive values of neuron connections.

Analytical gradient refers to the use of backpropagation in neural network algorithms to calculate the gradient of the objective function with respect to each parameter.

Approximation or approximation means that one thing is similar to another thing, but not exactly the same.

Approximate Bayesian Computation (ABC) is a computational method based on Bayesian statistics that can be used to estimate the posterior distribution of model parameters.

Approximate inference methods refer to sampling and learning from a large amount of data and using hypothesis-verification logic to continuously approach the true model.

In mathematics, a distance matrix is a matrix (i.e. a two-dimensional array) containing the distances between pairs of points.

Plug and Play Generative Network (PPGN) is a model proposed by Nguyen et al. in 2016.

The column name attribute refers to the 'name-related' feature of the data, and the corresponding value is the name of some symbol or thing.

Cumulative error back propagation is a neural network algorithm that uses a gradient descent-based strategy to adjust parameters in the negative gradient direction of the target, with the goal of minimizing the training error. It is also called the "back propagation algorithm", or "BP algorithm" for short.

Grouping related samples together is generally used for unsupervised learning. Once all samples are grouped, researchers can optionally assign meaning to each cluster. There are many clustering algorithms, for example, the k-means algorithm clusters samples based on their proximity to the centroid, as shown below: After that, researchers can […]

The majority voting method is a voting method that requires more than half of the valid votes to be recognized. When multiple classifiers predict a certain category, only the part that is higher than half of the total results will be predicted. The following is the formula for representation: $latex {H{ \left( {x} \right) }\text{ […]

Manifold learning is a basic method in pattern recognition. It seeks the essence of things and the inherent laws of data generation based on observed phenomena. Manifold learning is divided into two types: linear manifold learning algorithm and nonlinear manifold learning algorithm. Nonlinear manifold learning algorithm includes isomap, Laplace eigenmap, and L[…]

The mean square error is the expected value that reflects the difference between the estimated value and the true value. It is often used to evaluate the degree of change in data and predict the accuracy of data. Assuming that there is a parameter , and its estimation function is , then $latex {MSE [...]

Machine translation is the use of computers to convert between different languages, usually translating from a source language into a target language. Translation Process From the perspective of human translation, the translation process can be broken down into the following: Decipher the meaning of the source text and recompile the meaning obtained after the analysis into the target language. Translation Methods General steps of machine translation […]