Abstract: With the development of cloud computing and big data, data security and privacy protection in multi-user environments have become particularly important. Existing encryption schemes exhibit ...

Inside: Christmas Tracing Activity for Kids If you’re looking for a quiet, low-prep activity that helps preschoolers build ...

Abstract: Knowledge tracing is an important research topic in student modeling. The aim is to model a student’s knowledge state by mining a large number of exercise records. The dynamic key-value ...