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Pt2520 Unit 4.5 Assignment 1

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4.5 Testing phase In this module, the class label for the testing data is predicted. The n – dimensional feature vector for the testing data is converted from query tree of testing data in the manner similar to the data pre – processing phase. The SQLIA classifier determines the new testing feature vector is normal or malicious, by using optimized SVM classification model. 5. Results and discussion From Table 1 we can depict the generation time of the multi – dimensional sequences, feature transformation and n – dimensional vector for both normal and malicious queries. We observed that the total sequence generation time for all the normal queries is 31.111 seconds. The total feature transformation time is 7.867 seconds. And the time taken to generate the vector is 6.932 seconds. The sequence of all malicious queries is generated in 6.096 seconds. The time taken for feature transformation of malicious queries is 3.799 seconds. And finally, the vector generation time of malicious queries is 2.511 seconds. Table 2 illustrates that the second, third and fourth kernel parameter gives the highest accuracy. The performance of the classifier can be evaluated by using Accuracy. The equation (1) can be used to calculate the accuracy. Any of the kernel parameters can be used for further classification to …show more content…

The main focus of this project is reducing the feature extraction time of the system. As a conclusion, it shows that our framework extracts the features from the parse tree very fast. This paper can be further enhanced by using the hybrid classification algorithm to get more accuracy in classification. In this paper, the parse tree is obtained from the PostgreSQL databases and in future, it will get from MySQL databases. To decrease the feature extraction time, fragmented files will be processed in

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