Text summarization: A brief review.- Single Arabic Document Summarization Using Natural Language Processing Technique.- Proposed Natural Language Processing Preprocessing Procedures for Enhancing Arabic Text Summarization.- Effects of Stemming on Feature Extraction and Selection for Arabic Documents Classification.- Improving Arabic Lemmatization through a lemmas database and a machine-learning technique.- The role of transliteration in the process of Arabizi translation/sentiment analysis.- Sentiment analysis in healthcare: A brief review.- Aspect-Based Sentiment Analysis for Arabic Government Reviews.- Prediction of the Engagement Rate on Algerian Dialect Facebook Pages.- Predicting Quranic Audio Clips Reciters Using Classical Machine Learning Algorithms: A Comparative Study.