When f is convex with respect tox, many efficient algorithms can be powerful tools for solving Problem(1). One well-known algorithm is mirror descent (MD) [5]which is based on Bregman divergence.

Computerized adaptive testing (CA T), as a tool that can efficiently measure student's ability, has been widely used in various standardized tests (e.g., GMA T and

Following the convention of RS, existing methods exploit unique user representation in their model design.

Following the convention of RS, existing methods exploit unique user representation in their model design.