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- K-nearest_neighbors_algorithm abstract "In pattern recognition, the k-Nearest Neighbors algorithm (or k-NN for short) is a non-parametric method used for classification and regression. In both cases, the input consists of the k closest training examples in the feature space. The output depends on whether k-NN is used for classification or regression: In k-NN classification, the output is a class membership. An object is classified by a majority vote of its neighbors, with the object being assigned to the class most common among its k nearest neighbors (k is a positive integer, typically small). If k = 1, then the object is simply assigned to the class of that single nearest neighbor. In k-NN regression, the output is the property value for the object. This value is the average of the values of its k nearest neighbors.k-NN is a type of instance-based learning, or lazy learning, where the function is only approximated locally and all computation is deferred until classification. The k-NN algorithm is among the simplest of all machine learning algorithms.Both for classification and regression, it can be useful to weight the contributions of the neighbors, so that the nearer neighbors contribute more to the average than the more distant ones. For example, a common weighting scheme consists in giving each neighbor a weight of 1/d, where d is the distance to the neighbor.The neighbors are taken from a set of objects for which the class (for k-NN classification) or the object property value (for k-NN regression) is known. This can be thought of as the training set for the algorithm, though no explicit training step is required.A shortcoming of the k-NN algorithm is that it is sensitive to the local structure of the data.".
- K-nearest_neighbors_algorithm thumbnail KnnClassification.svg?width=300.
- K-nearest_neighbors_algorithm wikiPageExternalLink summary?doi=10.1.1.31.1422.
- K-nearest_neighbors_algorithm wikiPageExternalLink K-nearest_neighbor.
- K-nearest_neighbors_algorithm wikiPageExternalLink google-all-pairs-similarity-search.
- K-nearest_neighbors_algorithm wikiPageID "1775388".
- K-nearest_neighbors_algorithm wikiPageRevisionID "604493028".
- K-nearest_neighbors_algorithm hasPhotoCollection K-nearest_neighbors_algorithm.
- K-nearest_neighbors_algorithm subject Category:Classification_algorithms.
- K-nearest_neighbors_algorithm subject Category:Data_clustering_algorithms.
- K-nearest_neighbors_algorithm subject Category:Machine_learning_algorithms.
- K-nearest_neighbors_algorithm subject Category:Search_algorithms.
- K-nearest_neighbors_algorithm comment "In pattern recognition, the k-Nearest Neighbors algorithm (or k-NN for short) is a non-parametric method used for classification and regression. In both cases, the input consists of the k closest training examples in the feature space. The output depends on whether k-NN is used for classification or regression: In k-NN classification, the output is a class membership.".
- K-nearest_neighbors_algorithm label "K-najbliższych sąsiadów".
- K-nearest_neighbors_algorithm label "K-nearest neighbors algorithm".
- K-nearest_neighbors_algorithm label "K-nearest neighbors".
- K-nearest_neighbors_algorithm label "Knn".
- K-nearest_neighbors_algorithm label "K近傍法".
- K-nearest_neighbors_algorithm label "Méthode des k plus proches voisins".
- K-nearest_neighbors_algorithm label "Nächste-Nachbarn-Klassifikation".
- K-nearest_neighbors_algorithm label "Метод k ближайших соседей".
- K-nearest_neighbors_algorithm label "最近鄰居法".
- K-nearest_neighbors_algorithm sameAs Algoritmus_k-nejbližších_sousedů.
- K-nearest_neighbors_algorithm sameAs Nächste-Nachbarn-Klassifikation.
- K-nearest_neighbors_algorithm sameAs Knn.
- K-nearest_neighbors_algorithm sameAs Méthode_des_k_plus_proches_voisins.
- K-nearest_neighbors_algorithm sameAs KNN.
- K-nearest_neighbors_algorithm sameAs K-nearest_neighbors.
- K-nearest_neighbors_algorithm sameAs K近傍法.
- K-nearest_neighbors_algorithm sameAs K_근접_이웃.
- K-nearest_neighbors_algorithm sameAs K-najbliższych_sąsiadów.
- K-nearest_neighbors_algorithm sameAs m.05vyzq.
- K-nearest_neighbors_algorithm sameAs Q1071612.
- K-nearest_neighbors_algorithm sameAs Q1071612.
- K-nearest_neighbors_algorithm wasDerivedFrom K-nearest_neighbors_algorithm?oldid=604493028.
- K-nearest_neighbors_algorithm depiction KnnClassification.svg.
- K-nearest_neighbors_algorithm isPrimaryTopicOf K-nearest_neighbors_algorithm.