Before revision:  However, the current pipeline requires fully-annotated training images, which are time-consuming to create and sometimes infeasible because of the noisy nature of microscopical images. On the other hand , nuclei often have similar appearances within the same image - this could be utilized to segment nuclei with only partially labeled training examples.
After revision:  However, the current pipeline requires fully-annotated training images, which are time-consuming to create and sometimes infeasible because of the noisy nature of microscopic images. Importantly , nuclei often have similar appearances within the same image - this could be utilized to segment nuclei with only partially labeled training examples.