Khaleef Ajeel, Naji, Ali Souri, Ezatollah Abbasian, and Eslam Fakher. 2027. “Deep Learning Versus Classical Machine Learning in Portfolio Optimization With Downside Risk: Evidence from the Abu Dhabi Securities Exchange (ADX)”. Business, Marketing, and Finance Open, August, 1-20. https://www.bmfopen.com/index.php/bmfopen/article/view/662.