I want you to act as an academic journal editor Please rephrase the paragraph from an academic angle： U-shaped neural networks featuring encoder and decoder structures have gained popularity in the fi

U-shaped neural networks with encoder and decoder architectures have become increasingly popular in the domain of medical image segmentation. Nonetheless, in contrast to the advancement of the model itself, the investigation into model evaluation techniques remains relatively inadequate. The present model evaluation methods encounter challenges regarding complexity and uncertainty when applied to guide clinical practice, and they still lack comprehensiveness and standardization.