Forecasting of green chilli prices in West Bengal by holt-winters method using expert system
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چکیده
منابع مشابه
Quantile Versions of Holt-winters Forecasting Algorithms
We propose new versions of Holt-Winters (HW) and seasonal Holt-Winters (SHW) time series forecasting algorithms. The exponential smoothing construct is identical to HW/SHW, except that the coefficients are estimated by minimizing a given quantile error criterion, instead of the usual squared errors. We call these versions quantile HW/SHW (QHW/QSHW), which amounts to performing HW/SHW under an a...
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This is the simplest form of exponential smoothing and can be used only for data without any systematic trend or seasonal components. Given such a time series, a sensible approach is to take a weighted average of past values. So for a series, y 1 , y 2 ,…, y n , the estimate of the value of y n+1 , given the information available up to time n, is: y w y w y w y or i n i i n n y w y − ∞ = + ∑ = ...
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ژورنال
عنوان ژورنال: INTERNATIONAL RESEARCH JOURNAL OF AGRICULTURAL ECONOMICS AND STATISTICS
سال: 2018
ISSN: 2229-7278,2231-6434
DOI: 10.15740/has/irjaes/9.1/203-207