期刊论文

He, H

英文

Multimedia Tools and Applications

1380-7501

2024

83

1

227-251

10.1007/s11042-023-15560-1

This work is supported by “Research on Automatic Segmentation and Recognition of Teaching Scene with the Characteristics of Teaching Behavior” of National Natural Science Foundation of China [61977034]. It is also supported by Fundamental Research Funds for the Central Universities named “Research on Intelligent Decisionmaking and Service Platform for ** based on Knowledge Graph” (CCNU22JC027), and “Research on Intelligent Evaluation Technology and Application of Teachers’ Teaching Ability based on Multimodal Data” (CCNU22JC011).

本校为第一且通讯机构

Electronic portfolios are crucial means to evaluate the performance of students. However, the traditional student e-portfolio(SEP) system cannot meet the needs of guaranteeing students' information safety due to the system using centralized third-party storage. In addition, the SEP system involves multiple stakeholders and has an extreme volume of learning data, while the current access control model fails to satisfy the requirements of the SEP system. Blockchain technology provides a possible solution to the issues, while the massive data stored in the blockchain can cause congestion in the b...