5. The computer-based method of claim 1 , wherein the step of comparing the at least one document node of the reformed term-to-document matrix against the another document node of the reformed term-to-document matrix, includes determining if a similarity measure between the at least one document node of the reformed term-to-document matrix and the another document node of the reformed term-to-document matrix exceeds a threshold value.
5. The computer-based method of claim 1 , wherein the step of comparing the at least one document node of the reformed term-to-document matrix against the another document node of the reformed term-to-document matrix, includes determining if a similarity measure between the at least one document node of the reformed term-to-document matrix and the another document node of the reformed term-to-document matrix exceeds a threshold value. 6. The computer-based method of claim 5 , wherein the step of combining the at least one document node of the term-to-document matrix with the another document node of the term-to-document matrix, includes combining the at least one document node of the term-to-document matrix with the another document node of the term-to-document matrix, based on whether the similarity measure between the at least one document node of the reformed term-to-document matrix and the another document node of the reformed term-to-document matrix exceeds the threshold value.