Abstract: A method prevents duplicate posts within a question and answer forum. The method may compare the user question vector to each of the plurality of corpus question vectors to determine the closest match between the user question vector and the corpus question vectors to obtain an identified question and answer row, and determine if the identified Q and A row has a last answer that has a corresponding confidence to the question of the identified Q and A row that exceeds a confidence threshold. Responsive to a positive determination, the method may determine if the user question is similar to a question in the identified Q and A row, and if so the server may determine that the last answer is similar to any answer in the identified Q and A row that is not the last answer, and in response, block the submission of the user question.

Abstract: A server prevents duplicate posts within a question and answer forum. The server may compare the user question vector to each of the plurality of corpus question vectors to determine the closest match between the user question vector and the corpus question vectors to obtain an identified question and answer row, and determine if the identified Q and A row has a last answer that has a corresponding confidence to the question of the identified Q and A row that exceeds a confidence threshold. Responsive to a positive determination, the server may determine if the user question is similar to a question in the identified Q and A row, and if so the server may determine that the last answer is similar to any answer in the identified Q and A row that is not the last answer, and in response, block the submission of the user question.