Feng Zheng

A Captcha Design Based on Visual Reasoning

2018

CAPTCHA is a reverse Turing test to distinguish humans from machines. It is widely used in the internet industry for cyber security. A good CAPTCHA is supposed to be easy for humans but difficult for …

FREE: Feature Refinement for Generalized Zero-Shot Learning

2021 · 2021 IEEE/CVF International Conference on Computer Vision (ICCV)

Generalized zero-shot learning (GZSL) has achieved significant progress, with many efforts dedicated to over-coming the problems of visual-semantic domain gap and seen-unseen bias. However, most existing methods directly use feature extraction models trained on ImageNet …