Box-office forecasting in Korea using search trend data: a modified generalized Bass diffusion model

2021 ◽  
Vol 21 (1) ◽  
pp. 41-72
Author(s):  
Daekook Kang
Keyword(s):  
Diffusion Model ◽  
Box Office ◽  
Trend Data ◽  
Bass Diffusion ◽  
Bass Diffusion Model

scholarly journals Combining Diffusion and Grey Models Based on Evolutionary Optimization Algorithms to Forecast Motherboard Shipments

2012 ◽  
Vol 2012 ◽  
pp. 1-10
Author(s):  
Fu-Kwun Wang ◽  
Yu-Yao Hsiao ◽  
Ku-Kuang Chang
Keyword(s):  
Diffusion Model ◽  
Optimization Algorithms ◽  
Evolutionary Optimization ◽  
Grey Model ◽  
Percentage Error ◽  
Combined Model ◽  
Data Points ◽  
Evolutionary Optimization Algorithms ◽  
Bass Diffusion ◽  
Bass Diffusion Model

It is important for executives to predict the future trends. Otherwise, their companies cannot make profitable decisions and investments. The Bass diffusion model can describe the empirical adoption curve for new products and technological innovations. The Grey model provides short-term forecasts using four data points. This study develops a combined model based on the rolling Grey model (RGM) and the Bass diffusion model to forecast motherboard shipments. In addition, we investigate evolutionary optimization algorithms to determine the optimal parameters. Our results indicate that the combined model using a hybrid algorithm outperforms other methods for the fitting and forecasting processes in terms of mean absolute percentage error.

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