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| Gaussisk Blandingsmodel× | UMAP× | |
|---|---|---|
| Fagområde | Maskinlæring | Maskinlæring |
| Familie | Machine learning | Machine learning |
| Oprindelsesår≠ | 1977 | 2018 |
| Ophavsperson≠ | Dempster, Laird & Rubin (EM algorithm) | McInnes, L.; Healy, J.; Melville, J. |
| Type≠ | Probabilistic (soft) clustering — mixture model | Nonlinear manifold-learning dimension reduction |
| Oprindelig kilde≠ | Dempster, A.P., Laird, N.M. & Rubin, D.B. (1977). Maximum Likelihood from Incomplete Data via the EM Algorithm. Journal of the Royal Statistical Society: Series B, 39(1), 1–22. DOI ↗ | McInnes, L., Healy, J. & Melville, J. (2018). UMAP: Uniform Manifold Approximation and Projection for Dimension Reduction. arXiv:1802.03426. link ↗ |
| Aliasser≠ | Gaussian Karışım Modeli (GMM Kümeleme), GMM, GMM clustering, mixture of Gaussians | UMAP (Uniform Manifold Approximation and Projection), uniform manifold approximation and projection, manifold dimension reduction |
| Relaterede≠ | 4 | 5 |
| Resumé≠ | A Gaussian Mixture Model is a probabilistic clustering method that models the data as a weighted mixture of several Gaussian distributions, fitted with the Expectation–Maximization algorithm formalized by Dempster, Laird & Rubin in 1977. It is a generalization of K-means in which each cluster can take its own shape, size, and orientation. | UMAP (Uniform Manifold Approximation and Projection) is a fast, scalable nonlinear dimension-reduction method grounded in manifold-learning theory, introduced by McInnes, Healy and Melville in 2018. It compresses high-dimensional data into a low-dimensional embedding for visualisation and downstream analysis. |
| ScholarGateDatasæt ↗ |
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