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auto correction of a paragraph

shyamkumar bopannachengalaiah
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Joined: Dec 30, 2008
Posts: 100
I am Developing a application for learning management system where the student enters the answer for a question in a free text area and after he enters the answer has to be corrected automatically using some code or by any algorithm.kindly tell me how to do this?.for example if a student answers for a question as a paragraph say some 250 words , it should be matched or corrected automatically to the available texts that the teacher have(like correcting a answer sheet manually by a teacher) of same words.based on the number of errors made by student on the text entered ,marks has to be given to the answer.Instead of auto correcting total paragraph, it is sufficient to check the keywords also. How can i do this using a code?kindly help me i was stuck with this.
 
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