Bi-CLKT: Bi-Graph Contrastive Learning based Knowledge Tracing

no code implementations • 22 Jan 2022 • XiangYu Song, JianXin Li, Qi Lei, Wei Zhao, Yunliang Chen, Ajmal Mian

The goal of Knowledge Tracing (KT) is to estimate how well students have mastered a concept based on their historical learning of related exercises.

Contrastive Learning Knowledge Tracing +1

Understanding and Mitigating Annotation Bias in Facial Expression Recognition

no code implementations • ICCV 2021 • Yunliang Chen, Jungseock Joo

We demonstrate that many expression datasets contain significant annotation biases between genders, especially when it comes to the happy and angry expressions, and that traditional methods cannot fully mitigate such biases in trained models.

Facial Expression Recognition Facial Expression Recognition (FER)