As a new generation of technology cloud computing has been widely applied to various fields,and owing to the problem of the security,the security problems of the data in the cloud computing platform has been becoming the focus of attention.Therefore,it is vital of cloud computing that to put forward a security mechanism to ensure the security of data in the environment of cloud computing.The related technology of Intrusion Detection is researched,and the thoughts of combining misuse detection and anomaly detection together are adopting.Then a method of anomaly detection based on data mining is given.It is the improved decision trees algorithm,and achieves a real-time updates of invading the signature database by misuse detection.It was improved through the experiment the application based on improved decision trees can detect the attack effectively and guarantee the security of the cloud computing.
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