Classification algorithms | Statistical classification

Linear classifier

In the field of machine learning, the goal of statistical classification is to use an object's characteristics to identify which class (or group) it belongs to. A linear classifier achieves this by making a classification decision based on the value of a linear combination of the characteristics. An object's characteristics are also known as feature values and are typically presented to the machine in a vector called a feature vector. Such classifiers work well for practical problems such as document classification, and more generally for problems with many variables (features), reaching accuracy levels comparable to non-linear classifiers while taking less time to train and use. (Wikipedia).

Linear classifier
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Logistic regression | Convex function | Loss function | Dimensionality reduction | Naive Bayes classifier | Coordinate descent | Generative model | Support vector machine | Dot product | Hinge loss | Hyperplane | Statistical classification | Discriminative model | Regularization (mathematics) | Convex optimization | Linear discriminant analysis | Linear regression | Joint probability distribution | Real number | Overfitting | Gradient descent | Document classification | Normal distribution | Linear combination | Perceptron | Backpropagation | Stochastic gradient descent | Winnow (algorithm) | Conditional probability distribution | Quadratic classifier