विधियों की तुलना करें
चुनी हुई विधियों की आमने-सामने समीक्षा करें; भिन्नता वाली पंक्तियाँ रेखांकित हैं।
| Isomap× | स्थानीय रूप से रैखिक एम्बेडिंग (Locally Linear Embedding (LLE))× | |
|---|---|---|
| क्षेत्र | मशीन अधिगम | मशीन अधिगम |
| परिवार≠ | Latent structure | Machine learning |
| उद्भव वर्ष | 2000 | 2000 |
| प्रवर्तक≠ | Tenenbaum, J. B.; de Silva, V.; Langford, J. C. | Sam Roweis & Lawrence Saul |
| प्रकार≠ | Manifold learning / nonlinear dimensionality reduction | Nonlinear manifold dimensionality reduction |
| मौलिक स्रोत≠ | Tenenbaum, J. B., de Silva, V. & Langford, J. C. (2000). A global geometric framework for nonlinear dimensionality reduction. Science, 290(5500), 2319–2323. DOI ↗ | Roweis, S. T., & Saul, L. K. (2000). Nonlinear dimensionality reduction by locally linear embedding. Science, 290(5500), 2323–2326. DOI ↗ |
| उपनाम | Isomap, isometric feature mapping, geodesic Isomap, nonlinear MDS | LLE, manifold learning, nonlinear dimensionality reduction, yerel doğrusal gömme |
| संबंधित | 3 | 3 |
| सारांश≠ | Isomap (Isometric Feature Mapping) is a manifold learning algorithm introduced by Tenenbaum, de Silva, and Langford in 2000 that discovers the intrinsic low-dimensional geometry of high-dimensional data by preserving geodesic — rather than straight-line Euclidean — distances between all pairs of points. It was one of the earliest, and most influential, nonlinear dimensionality reduction methods to demonstrate that genuinely curved data manifolds could be unfolded into a faithful low-dimensional coordinate system. | Locally linear embedding, introduced by Sam Roweis and Lawrence Saul in 2000, is a manifold-learning method for nonlinear dimensionality reduction. It assumes that although data may curve through a high-dimensional space, each point and its neighbours lie approximately on a flat patch. LLE captures each point as a weighted combination of its neighbours and then finds a low-dimensional layout that preserves those same local relationships, unrolling curved structure into a faithful low-dimensional map. |
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