Dataset: https://www.kaggle.com/uciml/sms-spam-collection-dataset/data

Pre Processing done:

• Stemming - Porter Stemer
• Removed all the stop words
• Used regulatr exression to replace all the email address in sms to string 'email', all the web address to string 'httpadr' and all the number to string 'number'
• Removed all the sms string length equal to one.

Test data/Train data ratio = 0.33

Total No of SMS - 5573

Model used: SVM - Support Vector machine Kernel - Gaussian Kernel

Best Model: C = 600 Train Accuracy 0.997321 Test Accuracy 0.985318 Test Recall 0.900794 Test Precision 0.991266

Confusion Matrix: