HPS-Net: Multi-Task Network for Medical Image Segmentation with Predictable Performance

In recent years, medical image segmentation (MIS) has made a huge breakthrough due to the success of deep learning. However, the existing MIS algorithms still suffer from two types of uncertainties: (1) the uncertainty of the plausible segmentation hypotheses and (2) the uncertainty of segmentation performance. These two types of uncertainties affect the effectiveness of the MIS algorithm and then affect the reliability of medical diagnosis. Many studies have been done on the former but ignore the latter. Therefore, we proposed the hierarchical predictable segmentation network (HPS-Net), which consists of a new network structure, a new loss function, and a cooperative training mode. According to our knowledge, HPS-Net is the first network in the MIS area that can generate both the diverse segmentation hypotheses to avoid the uncertainty of the plausible segmentation hypotheses and the measure predictions about these hypotheses to avoid the uncertainty of segmentation performance. Extensive experiments were conducted on the LIDC-IDRI dataset and the ISIC2018 dataset. The results show that HPS-Net has the highest Dice score compared with the benchmark methods, which means it has the best segmentation performance. The results also confirmed that the proposed HPS-Net can effectively predict TNR and TPR.

Evaluation of a Training Program for Credit Union Counselors

Training, Development, and Education assessments have intensified in recent decades, and empirical evidence proves their effectiveness in organizational outcomes. However, the literature shows little research on the results of training in cooperative organizations. This study aimed to evaluate a training program for credit union counselors based on Training, Development, and Education evaluation models associated with logical models. This is an empirical study with a qualitative design. Data collection was performed through an analysis of 229 documents, three semi-structured individual interviews, and a focus group. The results of the research corroborate findings related to the usefulness of the integrated use of systemic evaluation approaches and indicate that these models apply to the context of cooperative training. This study fills a methodological gap in the field of instructional psychology in third sector organizations.