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	Online K-Nearest Neighbors	Mrežno učenje
Područje	Strojno učenje	Strojno učenje
Obitelj	Machine learning	Machine learning
Godina nastanka	2010s (formalized in streaming-learning literature)	1958–2000s
Tvorac	Extension of Fix & Hodges (1951) KNN to the streaming/online setting; notable online variant by Losing et al. (2016)	Rosenblatt, F.; Littlestone, N.; Shalev-Shwartz, S. (key contributors)
Vrsta	Instance-based online classifier/regressor	Learning paradigm (sequential model update)
Temeljni izvor	Losing, V., Hammer, B., & Wersing, H. (2016). KNN Classifier with Self Adjusting Memory for Heterogeneous Concept Drift. In Proceedings of the IEEE 16th International Conference on Data Mining (ICDM), pp. 291–300. IEEE.	Shalev-Shwartz, S. (2011). Online Learning and Online Convex Optimization. Foundations and Trends in Machine Learning, 4(2), 107–194.
Drugi nazivi	Online KNN, Incremental KNN, Streaming KNN, KNN with concept drift adaptation	incremental learning, sequential learning, streaming learning, online machine learning
Srodne	5	6
Sažetak	Online K-Nearest Neighbors (Online KNN) adapts the classic KNN algorithm to a data-stream setting where observations arrive sequentially and the model must update incrementally without full retraining. Instead of storing all historical instances, it maintains a bounded sliding window or adaptive memory, using the most recent and most representative examples to classify or predict each incoming point by proximity.	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.