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| Półnadzorowany DBSCAN× | Grupowanie K-średnich (K-means Clustering)× | |
|---|---|---|
| Dziedzina | Uczenie maszynowe | Uczenie maszynowe |
| Rodzina | Machine learning | Machine learning |
| Rok powstania≠ | 2000s | 1967 (formalized 1982) |
| Twórca≠ | Ester, M. et al. (DBSCAN base); semi-supervised extensions by multiple authors (2000s–2010s) | MacQueen, J. B.; Lloyd, S. P. |
| Typ≠ | Constrained density-based clustering | Partitional clustering |
| Źródło pierwotne≠ | Ester, M., Kriegel, H.-P., Sander, J., & Xu, X. (1996). A density-based algorithm for discovering clusters in large spatial databases with noise. In Proceedings of the 2nd International Conference on Knowledge Discovery and Data Mining (KDD-96), pp. 226–231. AAAI Press. link ↗ | Lloyd, S. P. (1982). Least squares quantization in PCM. IEEE Transactions on Information Theory, 28(2), 129–137. DOI ↗ |
| Inne nazwy | Constrained DBSCAN, SS-DBSCAN, DBSCAN with must-link/cannot-link constraints, seeded DBSCAN | k-means clustering, Lloyd's algorithm, k-means partitioning, hard k-means |
| Pokrewne≠ | 5 | 4 |
| Podsumowanie≠ | Semi-supervised DBSCAN extends the canonical density-based clustering algorithm (Ester et al., 1996) by incorporating a small set of pairwise or label constraints — must-link pairs that must share a cluster, cannot-link pairs that must be separated, or a handful of known labels — to guide cluster formation while retaining DBSCAN's ability to discover arbitrary-shaped clusters and flag noise points. | K-means is a classic unsupervised partitional clustering algorithm that divides a dataset into K non-overlapping groups by iteratively assigning each observation to its nearest centroid and updating centroids as the mean of their assigned points. It is one of the most widely used exploratory tools in machine learning and data analysis. |
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