Study on network traffic forecast model of SVR optimized by GAFSA
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- 作者：Yuan Liu ; lyuan1800@sina.com" class="auth_mail" title="E-mail the corresponding author ; RuiXue Wang
- 关键词：Network traffic forecast ; Optimization of parameters ; Support vector regression (SVR) ; Global artificial fish swarm algorithm (GAFSA) ; Self-similarity
- 刊名：Chaos, Solitons & Fractals
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：89
- 期：Complete
- 页码：153-159
- 全文大小：943 K
文摘
There are some problems, such as low precision, on existing network traffic forecast model. In accordance with these problems, this paper proposed the network traffic forecast model of support vector regression (SVR) algorithm optimized by global artificial fish swarm algorithm (GAFSA). GAFSA constitutes an improvement of artificial fish swarm algorithm, which is a swarm intelligence optimization algorithm with a significant effect of optimization. The optimum training parameters used for SVR could be calculated by optimizing chosen parameters, which would make the forecast more accurate. With the optimum training parameters searched by GAFSA algorithm, a model of network traffic forecast, which greatly solved problems of great errors in SVR improved by others intelligent algorithms, could be built with the forecast result approaching stability and the increased forecast precision. The simulation shows that, compared with other models (e.g. GA-SVR, CPSO-SVR), the forecast results of GAFSA-SVR network traffic forecast model is more stable with the precision improved to more than 89%, which plays an important role on instructing network control behavior and analyzing security situation.