  The principal component analysis approach is employed to extract the
principal components contained in nuclear mass models for the first time. The
effects coming from different nuclear mass models are reintegrated and
reorganized in the extracted principal components. These extracted principal
components are recombined to build new mass models, which achieve better
accuracy than the original theoretical mass models. This indicates that the
effects contained in different mass models can work together to improve the
nuclear mass predictions with the help of the principal component analysis
approach.
