Research

He, S., Wang, X., Lei, Y., Liu, Y.,  Zhang, C., Abu-Salma, R. and Such, J., 2026. Investigating Bystander Privacy in Chinese Smart Home Apps. Proceedings of the 2026 CHI Conference on Human Factors in Computing Systems. https://doi.org/10.1145/3772318.3790960 

He, S., Ma, C., Zhang, C., Jenkins, A., Abu-Salma, R. and Such, J., 2026. ``Create an environment that protects women, rather than selling anxiety!'': Participatory Threat Modeling with Chinese Young Women Living Alone. Proceedings of the 2026 CHI Conference on Human Factors in Computing Systems. https://doi.org/10.1145/3772318.3790961 

Ma, R., He, S., Martin-Navarro, J., Zhan, X. and Such, J., 2026. Privacy in Human-AI Romantic Relationships: Concerns, Boundaries, and Agency. Proceedings of the 2026 CHI Conference on Human Factors in Computing Systems. https://doi.org/10.1145/3772318.3791237 

Lei, Y., Gong, X., He, S., Wang, Y., Khamis, M. and Ye, J., 2026. The People's Gaze: Co-Designing and Refining Gaze Gestures with Users and Experts. Proceedings of the 2026 CHI Conference on Human Factors in Computing Systems. https://doi.org/10.1145/3772318.3791270 

He, S., Zhan, X., Lei, Y., Liu, Y.,  Abu-Salma, R. and Such, J., 2025.``These cameras are just like the Eye of Sauron'': A Sociotechnical Threat Model for AI-Driven Smart Home Devices as Perceived by UK-Based Domestic Workers. Symposium on Usable Security and Privacy (USEC) 2026. https://dx.doi.org/10.14722/usec.2026.23030 

He, S., Lei, Y., Zhang, Z., Sun, Y., Li, S., Zhang, C. and Ye, J., 2025. Identity Deepfake Threats to Biometric Authentication Systems: Public and Expert Perspectives. https://arxiv.org/pdf/2506.06825

He, S., Lei, Y., Zhan, X., Zhang, C., Ye, J., Abu-Salma, R. and Such, J., 2025. Privacy Perspectives and Practices of Chinese Smart Home Product Teams. https://arxiv.org/pdf/2506.06591

Lei, Y., Zhao, M., Wang, Y., He, S., Sugano, Y., Wang, Y., Zhao, K., Khamis, M. and Ye, J., 2025. MAC-Gaze: Motion-Aware Continual Calibration for Mobile Gaze Tracking. https://arxiv.org/pdf/2505.22769

Lei, Y., Wang, Y., Buchanan, F., Zhao, M., Sugano, Y., He, S., Khamis, M. and Ye, J., 2025. Quantifying the impact of motion on 2d gaze estimation in real-world mobile interactions. https://arxiv.org/pdf/2502.10570

Saqib, E., He, S., Choy, J., Abu-Salma, R., Such, J., Bernd, J. and Javed, M., 2025. Bystander Privacy in Smart Homes: A Systematic Review of Concerns and Solutions. ACM Transactions on Computer-Human Interaction. https://dl.acm.org/doi/abs/10.1145/3731755

He, S., Ma, C., Zhang, C., Abu-Salma, R. and Such, J., 2025. ``Living-Alone Girls’ Lives Matter'': Exploring the Security and Safety Perceptions and Practices of Young Women Living Alone in China. Extended Abstracts of the CHI Conference on Human Factors in Computing Systems (CHI EA ’25). https://dl.acm.org/doi/10.1145/3706599.3719961

He, S., Zhan, X., Lei, Y., Liu, Y.,  Abu-Salma, R. and Such, J., 2025. Exploring the Privacy and Security Challenges Faced by Migrant Domestic Workers in Chinese Smart Homes. Proceedings of the 2025 CHI Conference on Human Factors in Computing Systems. https://dl.acm.org/doi/10.1145/3706598.3713616

Lei, Y., Wang, Y., Buchanan, F., Zhao, M., Sugano, S., He, S., Khamis, M. and Ye, J., Quantifying the Impact of Motion on 2D Gaze Estimation in Real-World Mobile Interactions. https://arxiv.org/pdf/2502.10570 

Despres, T., Constantino, M.A., Lizola, N.Z., Romero, G.S., He, S., Zhan, X., Abdi, N., Abu-Salma, R., Such, J. and Bernd, J., 2024. ``My Best Friend’s Husband Sees and Knows Everything'': A Cross-Contextual and Cross-Country Approach to Understanding Smart Home Privacy. Proceedings on Privacy Enhancing Technologies, 4, pp.413-449. https://doi.org/10.56553/popets-2024-0124 

Lei, Y., He, S., Khamis, M. and Ye, J., 2023. An end-to-end review of gaze estimation and its interactive applications on handheld mobile devices. ACM Computing Surveys, 56(2), pp.1-38. https://doi.org/10.1145/3606947

Qi, X., Lei, Y., He, S. and Cheng, S., 2023, August. Awayvirus: A Playful and Tangible Approach to Improve Children’s Hygiene Habits in Family Education. In IFIP Conference on Human-Computer Interaction (pp. 193-202). Cham: Springer Nature Switzerland. https://doi.org/10.1007/978-3-031-42283-6_10 

Lei, Y., He, S., Feng, H., Zhao, K., Khamis, M. and Ye, J., Protecting Privacy in an Era of Pervasive Camera-Based Devices: Challenges and Potential Directions. In MobiUK'23. https://mobiuk.org/2023/abstract/S2_P2_Lei_PrivacyCameras.pdf

Abu-Salma, R., Talhouk, R., Such, J., Aradau, C., Meloni, F., He, S., Ahmed, S.I., Ekmekcioglu, C., Sabie, D., Jensen, R.B. and McClearn, J., 2023, April. Diverse Migration Journeys and Security Practices: Engaging with Longitudinal Perspectives of Migration and (Digital) Security. In Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems (pp. 1-7). https://doi.org/10.1145/3544549.3573800 

Thakkar, P.K., He, S., Xu, S., Huang, D.Y. and Yao, Y., 2022, April. ``It would probably turn into a social faux-pas'': Users’ and Bystanders’ Preferences of Privacy Awareness Mechanisms in Smart Homes. In CHI Conference on Human Factors in Computing Systems (pp. 1-13). https://doi.org/10.1145/3491102.3502137 

EuroUSEC 2025 Program Committee

Reviewer of CHI 2025, 2026 

PoPETs 2024, 2025, 2026 Artifact Committee Member

Co-Organiser - Seminar of HCI for Chinese HCI researchers around the World

Reviewer of ACM TOMM 

Reviewer of CSCW 2023

ACM SIGCHI member