A modified particle swarm optimization for combining forecasting

A modified particle swarm optimization (PSO) algorithm is proposed. Linear constraints in the PSO are added to satisfy normalization conditions for different problems. A hybrid algorithm based on the modified PSO and combining forecasting is presented. Combining forecasting can improve the forecasting accuracy through combining different forecasting methods. The effectiveness of the algorithm is demonstrated through the prediction on the sunspots and the stocks data. Simulated results show that the hybrid algorithm can improve the forecasting accuracy to a great extent.