List of Articles Mean-variance model Open Access Article Abstract Page Full-Text 1 - Stock portfolio optimization based on the combined model of omega ratio and mean-variance Markowitz based on two-level ensemble machine learning sanaz faridi Mahdi Madanchi Zaj amir daneshvar shadi shahverdiani fereydoon rahnama 10.30495/jfksa.2022.21083 Open Access Article Abstract Page Full-Text 2 - Multi-objective possibility model for selecting the optimal stock portfolio Abdolmajid Abdolbaghi Ataabadi Alireza Nazemi Masoumeh Saki 10.22034/amfa.2022.1952682.1705 Open Access Article Abstract Page Full-Text 3 - Portfolio Optimization and the Momentum- Contrarian Strategy (MCS)- Based Performance: Evidence from Tehran Stock Exchange Homayun Soltanzadeh Reza Keykhaei Abdolmajid Abdolbaghi Ataabadi Mohammad Hosein Arman 10.30495/jsm.2022.1966975.1685 Open Access Article Abstract Page Full-Text 4 - Portfolio optimization based on return prediction using multiple parallel input CNN-LSTM Hatef Kiabakht Mahdi Ashrafzadeh Open Access Article Abstract Page Full-Text 5 - Development of stock portfolio trading systems using machine learning methods Ali Heidarian Mohadeseh Moradi Mehr Ali Farhadian