一种云计算环境下海量数据安全特征提取算法

A Massive data security feature extraction algorithm in cloud computing environment

面对云计算环境下大规模数据和多变入侵行为,提出了一种云计算环境下海量数据安全特征提取算法。该算法在定义最佳提取特征指标的基础上,构建基于改进离散狼群算法(Improved Discrete Wolf Pack Algorithm,IDWPA)的安全特征提取模型,最大限度的降低了提取特征冗余度和问题复杂度。针对安全特征提取问题特点,重新设计IDWPA个体编码方式和更新策略,并将IDWPA应用于安全特征提取模型求解,从而实现了最佳安全特征提取。仿真结果表明,相比于其他特征提取算法,基于该算法特征提取的数据分类准确率明显改善。

Aiming at large-scale data and multiple intrusion behaviors in cloud computing environ-ment,an algorithm for extracting security features of large-scale data in cloud computing environment is proposed.On the basis of defining the best feature extraction index,a security feature extraction model based on improved discrete wolf pack algorithm(IDWPA)is constructed to minimize the redundancy and complexity of feature extraction.Aiming at the characteristics of security feature extraction,the particle encoding method and update strategy of IDWPA are redesigned,and IDWPA is applied to solve the model of security feature extraction to achieve the best security feature extraction.The simulation results show that,compared with other feature extraction algorithms,the accuracy of data classification based on this algorithm is significantly improved.