Enhancing analogy-based software cost estimation using Grey Wolf Optimization algorithm 1Department of Computer Science, Faculty of Mathematical Sciences, Shahrekord University, Shahrekord, Chaharmahal and Bakhtiari, Iran 2Department of Computer Engineering, Aghigh University, Shahinshahr, Isfahan, Iran 3Department of Software Engineering and Information Systems, Universiti Putra Malaysia, Serdang, Selangor, Malaysia DOI 10.7717/peerj-cs.2794 Academic Editor Bilal Alatas Subject Areas...