نتایج جستجو برای: single and double exponential smoothing

تعداد نتایج: 16996060  

Journal: :International Journal of Recent Contributions from Engineering, Science & IT (iJES) 2020

Journal: :International Journal of Forecasting 2003

Journal: :IJPRAI 2001
Mitra Basu Min Su

Noise reduction in images, also known as image smoothing, is an essential and rst step before further processings are done on the image. The key to image smoothing is to preserve important features while removing noise from the image. Gaussian function is widely used in image smoothing. Recently it has been reported that exponential functions (value of the exponent is not equal to 2) perform su...

2012
Marco Antonio Montes de Oca Eliseo Ferrante Alexander Scheidler Louis F. Rossi

In this paper, we reinterpret the most basic exponential smoothing equation as a model of social influence. Exponential smoothing has been used as a time-series forecasting and data filtering technique since the 1950s. The most basic exponential smoothing equation, S t+1 = (1−α)S +αX, is used to estimate the value of a series at time t+ 1, denoted by S , as a convex combination of the current e...

2005
James W. Taylor

Adaptive exponential smoothing methods allow smoothing parameters to change over time, in order to adapt to changes in the characteristics of the time series. This paper presents a new adaptive method for predicting the volatility in financial returns. It enables the smoothing parameter to vary as a logistic function of user-specified variables. The approach is analogous to that used to model t...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید