Network anomaly detection system and detection method based on a neural network
A neural network and network anomaly technology, applied in biological neural network models, transmission systems, electrical components, etc., can solve problems such as the decline of cybercrime professional skills, and achieve the effects of high accuracy, improved detection efficiency, and short running time.
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[0034]The following describes the technical solution of the present invention in detail in conjunction with the accompanying drawings and specific embodiments. First, data preprocessing is performed on the KDDCup99 data set, and data processing is performed on discrete features and continuous features, and then PCA dimensionality reduction is performed on the data. , and then use the neural network to detect the abnormality of the data, and compare it with KNN (K nearest neighbor algorithm) and SVM (support vector machine algorithm). Several commonly used evaluation indicators are used, mainly including accuracy rate, precision rate, recall rate, F-score, and ROC curve.
[0035] A detection system based on a neural network-based network anomaly detection system, including a data preprocessing unit and an abnormal data unit for identifying network attacks, the data preprocessing unit is used to encode and process the messy and numerous original data in the KDDCup99 data set Nor...
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