Assessment of Impact of discussion of COVID-19 on Twitter on Saudi stock exchange market using Machine Learning Technique 2026-02-15T21:49:48+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - AL Tamimi, Hadeel Abdulaziz Abdullah (Imam Mohammad ibn Saud Islamic University, College of Computer and Information Sciences, Department of Computer Sciences, 2023)