“…Those objective functions come from the initial assumption that the dependent variable in the model is normally distributed [12]. F1 star rating [1], [4], [7], [8], [25]- [29], F2 review length/words [1], [4], [7], [8], [25]- [29], F3 review length/sentences [26], F4 review text [9], [24], F5 review age/days [1], [29], [30], F6 total votes [4], [8], [25], [29], F7 review order [4], [27], F8 text sentiment [1], [27], [29], F9 sentiment score deviation [4] F10 text complexity [1], F11 readability/The automated readability index [4], [27], [29], F12 review types [1], F13 writing style [27], F14 review uncertainty [29], F15 information-entropy increment [4], F16 emotion (anger, sad, sadness) [25], F17 the average number of words of each sentence [26], F18 ratio of type of words (adverb, noun, preposition) [26] and adjective [30] F19 product type [8], [25], [29], F20 product-description length/words [4], F21 product fea...…”