随着理论与应用的需要,对模糊时间序列模型的研究和应用越来越深入。提出从论域的划分和模糊规则的提取两个方面对传统模型进行改进。模型首先采用自动聚类的方法对论域进行划分,并在此基础上建立具有权重的模糊规则;然后,利用粒子群算法对模型进行优化,进一步提高预测精度;最后,将Alabama大学入学人数作为本模型的实验数据。实验结果表明该模型是可行的,其预测结果明显优于参照预测模型。
With the needs of theory and application, the research and application of fuzzy time series model has been widely studied. This paper improves the traditional fuzzy time series model from aspects of partition of interval and extraction of fuzzy rules. Firstly, the model adopts the method of automatic clustering to divide universe of discourse, and then establishs fuzzy rules with weights. Secondly, particle swarm algorithm is used to further improve the prediction accuracy. Finally, the enrollment of Alabama University is used as the experimental data for the forecasting models. The experimental results show that the proposed model outperforms the compared models.