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| Fuzzy C-Means grupisanje (FCM)× | GM(1,1) Модел сивог предвиђања× | |
|---|---|---|
| Oblast≠ | Mašinsko učenje | Meko računarstvo |
| Porodica≠ | Machine learning | Regression model |
| Godina nastanka≠ | 1981 | 1982 |
| Tvorac≠ | Joseph Dunn; James Bezdek | Julong Deng |
| Tip≠ | Soft (fuzzy) partitional clustering | Small-sample grey forecasting model |
| Temeljni izvor≠ | Dunn, J. C. (1973). A fuzzy relative of the ISODATA process and its use in detecting compact well-separated clusters. Journal of Cybernetics, 3(3), 32–57. DOI ↗ | Deng, J. L. (1982). Control problems of grey systems. Systems & Control Letters, 1(5), 288–294. DOI ↗ |
| Drugi nazivi | FCM, fuzzy clustering, soft k-means, bulanık c-ortalama kümeleme | GM(1,1), grey prediction model, grey forecasting, gri tahmin modeli |
| Srodne≠ | 3 | 2 |
| Sažetak≠ | Fuzzy C-Means is a soft clustering algorithm in which every data point belongs to every cluster with a graded membership between 0 and 1, rather than being assigned to exactly one cluster. Originated by Joseph Dunn in 1973 and generalized by James Bezdek in 1981, it minimizes a fuzzy-weighted within-cluster variance, making it well suited to data whose groups overlap or have no sharp boundaries. | GM(1,1) is the core forecasting model of grey system theory, introduced by Julong Deng in 1982, designed to predict from very few observations and incomplete information — situations where classical time-series models like ARIMA need far more data. It accumulates the raw series to expose a hidden exponential trend, fits a first-order grey differential equation, and projects future values, making it popular in engineering, energy, and management forecasting with short data records. |
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