Effect of Adversarial Examples on the Robustness of CAPTCHA. - Yang Zhang; Haichang Gao; Ge Pei; Shuai Kang; Xin Zhou (CyberC, 2018)

A Survey of Research on CAPTCHA Designing and Breaking Techniques. - Yang Zhang; Haichang Gao; Ge Pei; Sainan Luo; Guoqin Chang; Nuo Cheng (TrustCom/BigDataSE, 2019)

Image-based CAPTCHAs based on neural style transfer. - Zhouhang Cheng; Haichang Gao; Zhongyu Liu; Huaxi Wu; Yang Zi; Ge Pei (IET Inf. Secur., 2019)

WordChange: Adversarial Examples Generation Approach for Chinese Text Classification. - Nuo Cheng; Guoqin Chang; Haichang Gao; Ge Pei; Yang Zhang (IEEE Access, 2020)

Feature Pooling - A Feature Compression Method Used in Convolutional Neural Networks. - Ge Pei; Haichang Gao; Xin Zhou; Nuo Cheng (J. Inf. Sci. Eng., 2020)

Special Characters Attack: Toward Scalable Training Data Extraction From Large Language Models. - Yang Bai; Ge Pei; Jindong Gu; Yong Yang; Xingjun Ma (CoRR, 2024)

The robustness of behavior-verification-based slider CAPTCHAs. - Guoqin Chang; Haichang Gao; Ge Pei; Sainan Luo; Yang Zhang; Nuo Cheng; Yiwen Tang; Qianwen Guo (J. Inf. Secur. Appl., 2024)