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| Hauptkomponentenanalyse× | t-SNE× | |
|---|---|---|
| Fachgebiet | Maschinelles Lernen | Maschinelles Lernen |
| Familie | Machine learning | Machine learning |
| Entstehungsjahr≠ | 2002 | 2008 |
| Urheber≠ | Jolliffe, I.T. (textbook); Pearson & Hotelling (origins) | van der Maaten, L. & Hinton, G. |
| Typ≠ | Unsupervised dimensionality reduction | Nonlinear dimensionality reduction (manifold visualization) |
| Wegweisende Quelle≠ | Jolliffe, I.T. (2002). Principal Component Analysis (2nd ed.). Springer. DOI ↗ | van der Maaten, L. & Hinton, G. (2008). Visualizing Data using t-SNE. Journal of Machine Learning Research, 9(86), 2579–2605. link ↗ |
| Aliasnamen≠ | Temel Bileşenler Analizi (PCA), PCA, principal components analysis, Karhunen-Loève transform | t-SNE (Boyut İndirgeme / Görselleştirme), t-distributed stochastic neighbor embedding, tsne |
| Verwandt | 3 | 3 |
| Zusammenfassung≠ | Principal Component Analysis (PCA) is an unsupervised dimensionality-reduction method — given its modern textbook treatment by Ian Jolliffe (2002) — that compresses high-dimensional data into fewer dimensions while preserving the maximum possible variance. It re-expresses correlated variables as a small set of uncorrelated principal components ordered by how much of the data's variation each one captures. | t-SNE (t-Distributed Stochastic Neighbor Embedding) is a nonlinear dimensionality-reduction method introduced by Laurens van der Maaten and Geoffrey Hinton in 2008 that maps high-dimensional data into a 2D or 3D space for visualization. It preserves probabilistic local similarities, so points that are neighbours in the original space stay close together, revealing cluster structure and local neighbourhoods. |
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