Accepted Manuscript A hybrid of firefly and improved particle swarm optimization algorithms for load balancing in cloud environments: performance evaluation Mahya Mohammadi Golchi , Shideh Saraeian , Mehrnoosh Heydari PII: S1389-1286(18)31366-5 DOI: https://doi.org/10.1016/j.comnet.2019.106860 Article Number: 106860 Reference: COMPNW 106860 To appear in: Computer Networks Received date: 15 December 2018 Revised date: 17 May 2019 Accepted date: 11 July 2019 Please cite this article as: Mahya Mohammadi Golchi , Shideh Saraeian , Mehrnoosh Heydari , A hybrid of firefly and improved particle swarm optimization algorithms for load bal- ancing in cloud environments: performance evaluation, Computer Networks (2019), doi: https://doi.org/10.1016/j.comnet.2019.106860 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.