Machine Learning, NLP, Data Science, Technology, Productivity.
sklearn, calculates the Inverse Document Frequency as: IDF = (log(N/n)) + 1 Thus, the TF-IDF value would be: TF-IDF value = 1 * (log(4/2) + 1) = 1 * (log(2) + 1) = 1.69314718 The process when repeated would represent the vector for first sentence as: [0, 0, 1.69314718, 0, 0, 1.69314718, 1.69314718,