To improve the accuracy and efficiency of short-term load forecasting, we proposed a load forecasting method based on an improved manifold regularization extreme learning machine. Firstly, to improve the generalization performance and efficiency, and to solve the potential problem of ELM caused by random initialization parameters, Manifold Regularization Extreme Learning Machine(MRELM) was put forward. Secondly, in view of the problems about the selection of parameters in MRELM and the selection on hidden l...