Fig. 13From: Improving the accuracy of polar motion prediction using a hybrid least squares and long short-term memory modelMean absolute errors (MAE) of the PMX and PMY prediction using the four cases, namely, the LS + AR model (blue line), LSTM model (brown line), LS + LSTM model (red line), and Bulletin A is indicated by the green line. All results in units of [mas]Back to article page