Gene-expression programming to predict friction factor for Southern Italian rivers

摘要

This briefing article presents gene-expression programming (GEP), which is an extension to genetic programming, as an alternative approach to predict friction factor for Southern Italian rivers. Published data were compiled for the friction for 43 gravel-bed rivers of Calabria. The proposed GEP approach produces satisfactory results (R~2 = 0.958 and RMSE = 0.079) compared with existing predictors.