Sentiment analysis of tweets through Altmetrics: A machine learning approach. - Saeed-Ul Hassan; Aneela Saleem; Saira Hanif Soroya; Iqra Safder; Sehrish Iqbal; Saqib Jamil; Faisal Bukhari; Naif Radi Aljohani; Raheel Nawaz (J. Inf. Sci., 2021)