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| Grupowanie K-średnich (K-means Clustering)× | Uczenie online× | |
|---|---|---|
| Dziedzina | Uczenie maszynowe | Uczenie maszynowe |
| Rodzina | Machine learning | Machine learning |
| Rok powstania≠ | 1967 (formalized 1982) | 1958–2000s |
| Twórca≠ | MacQueen, J. B.; Lloyd, S. P. | Rosenblatt, F.; Littlestone, N.; Shalev-Shwartz, S. (key contributors) |
| Typ≠ | Partitional clustering | Learning paradigm (sequential model update) |
| Źródło pierwotne≠ | Lloyd, S. P. (1982). Least squares quantization in PCM. IEEE Transactions on Information Theory, 28(2), 129–137. DOI ↗ | Shalev-Shwartz, S. (2011). Online Learning and Online Convex Optimization. Foundations and Trends in Machine Learning, 4(2), 107–194. DOI ↗ |
| Inne nazwy | k-means clustering, Lloyd's algorithm, k-means partitioning, hard k-means | incremental learning, sequential learning, streaming learning, online machine learning |
| Pokrewne≠ | 4 | 6 |
| Podsumowanie≠ | 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. | Online learning is a machine learning paradigm in which a model is updated incrementally as each new data point arrives, rather than being trained once on a fixed dataset. It is essential when data streams continuously, storage is limited, or the underlying distribution shifts over time. Theoretical performance is measured by cumulative regret relative to the best fixed predictor in hindsight. |
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