Meysam Naderi and Ehsan Khamehchi and Behrooz Karimi.
Novel statistical forecasting models for crude oil price, gas price, and interest rate based on meta-heuristic bat algorithm.
Journal of Petroleum Science and Engineering, 172:13-22, 2019.
Danial Abooali and Ehsan Khamehchi.
Estimation of dynamic viscosity of natural gas based on genetic programming methodology.
Journal of Natural Gas Science and Engineering, 21:1025-1031, 2014.