Symmetric MAPE (sMAPE)
Symmetric Mean Absolute Percentage Error ni marekebisho ya MAPE ambayo hushughulikia kutokuwa sawa kwake kwa kutumia wastani wa thamani halisi na iliyotabiriwa kama kihesabu. Ipendekezwa na J. Scott Armstrong na kusafishwa na Makridakis (1993) na Hyndman & Koehler (2006), sMAPE hushughulikia utabiri wa kupita kiasi na chini ya kiasi kwa usawa.
Soma mbinu kamili
Ingia kwa akaunti ya bure ili kusoma sehemu hii.
Ramani ya mbinu
Jirani ya mbinu zinazohusiana — chagua nodi ili kuchunguza.
Vyanzo
- Armstrong, J. S. (1985). Long-range forecasting: from crystal ball to computer (2nd ed.). New York: John Wiley & Sons. ISBN: 978-0471082010
- Hyndman, R. J., & Koehler, A. B. (2006). Another look at measures of forecast accuracy. International Journal of Forecasting, 22(4), 679-688. DOI: 10.1016/j.ijforecast.2006.03.001 ↗
- Makridakis, S. (1993). Accuracy measures for a robust comparison of forecasting methods. International Journal of Forecasting, 9(4), 679-688. link ↗
Jinsi ya kunukuu ukurasa huu
ScholarGate. (2026, June 3). Symmetric Mean Absolute Percentage Error. ScholarGate. https://scholargate.app/sw/model-evaluation/symmetric-mape
Mbinu ipi?
Weka mbinu hii kando ya jamaa zake wa karibu na uzisome bega kwa bega — maktaba huweka vitabu mezani; uamuzi ni wako.
- Kosa Kamili la Wastani (MAE)Tathmini ya Modeli↔ linganisha
- Kosa la Wastani la Asilimia Kamili (MAPE)Tathmini ya Modeli↔ linganisha
- Kosa Kamili Lililopimwa kwa Wastani (MASE)Tathmini ya Modeli↔ linganisha
- Hitilafu ya Mizizi ya Mraba (RMSE)Tathmini ya Modeli↔ linganisha
Imerejelewa na
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