Muhammad Syamsul Bahri1, - and Agus Hermawan1, - and Evlyn Pricilia Kondy1, - and Refa Joyce Semida1, - and Siswanto1, - Performance Comparison of Supporting Vector Machine Method without or with Particle Swarm Optimization Based on Sentiment Analysis WhatsApp Review. International Journal of Academic and Applied Research (IJAAR) Vol. 6 Issue 6, June - 2022,.