Ahmad Hassan

At TikTok, I’m on the AI Governance team. We build algorithms and infrastructure for offline evaluation and online alignment of fairness-related behavior in large vision, language, and multimodal models. I work on both the ML/algo side and the systems/backend side.

I earned my Ph.D. at USC, advised by Prof. Feng Qian. My graduate research combined systems, networking, and machine learning. I designed and evaluated cross-layer systems that trade off user experience, network performance, and device energy. Most of that work was anchored in large-scale measurements, with an emphasis on systems that would survive real deployment.

news

Mar 27, 2026	Successfully defended my Ph.D. thesis at USC. My research won two awards: 🎓 Viterbi Best Dissertation Award Finalist! ⭐ ECE Best Research Assistant Award!
Sep 15, 2025	OPCM has been accepted to CoNEXT’25. 🏆 Best Community Award!
Aug 22, 2025	Wrapped up my internship at Samsung Research America. 🏆 Best Intern Poster Runner-Up!
Sep 18, 2024	Wixor has been accepted to CoNEXT’24. 🏆 Best Paper Runner-Up!
Jan 03, 2024	Our OASIS work led by Shuowei was accepted to MMSys’24. 🏆 Best Paper Award!

selected publications

CoNEXT

OPCM: Opportunistic Performance-driven Connectivity Management for 5G/xG Networks 🏆

Ahmad Hassan, Wei Ye, Anlan Zhang, and 9 more authors

Proc. ACM Netw., 2025

DOI Bib PDF Slides Website

@article{10.1145/3768970,
  author = {Hassan, Ahmad and Ye, Wei and Zhang, Anlan and Fezeu, Rostand A. K. and Carpenter, Jason and Zhu, Ruiyang and Jin, Shuowei and Lee, Myungjin and Jajoo, Akshay and Mao, Morley and Zhang, Zhi-Li and Qian, Feng},
  title = {OPCM: Opportunistic Performance-driven Connectivity Management for 5G/xG Networks 🏆},
  year = {2025},
  issue_date = {September 2025},
  publisher = {Association for Computing Machinery},
  address = {New York, NY, USA},
  volume = {3},
  number = {CoNEXT4},
  url = {https://doi.org/10.1145/3768970},
  doi = {10.1145/3768970},
  journal = {Proc. ACM Netw.},
}

CoNEXT

Wixor: Dynamic TDD Policy Adaptation for 5G/xG Networks 🏆

Ahmad Hassan, Shivang Aggarwal, Mohamed Ibrahim, and 2 more authors

Proc. ACM Netw., Nov 2024

DOI Bib PDF Slides Website

@article{10.1145/3696395,
  author = {Hassan, Ahmad and Aggarwal, Shivang and Ibrahim, Mohamed and Sharma, Puneet and Qian, Feng},
  title = {Wixor: Dynamic TDD Policy Adaptation for 5G/xG Networks 🏆},
  year = {2024},
  issue_date = {December 2024},
  publisher = {Association for Computing Machinery},
  address = {New York, NY, USA},
  volume = {2},
  number = {CoNEXT4},
  url = {https://doi.org/10.1145/3696395},
  doi = {10.1145/3696395},
  journal = {Proc. ACM Netw.},
  month = nov,
  articleno = {38},
  numpages = {24},
  keywords = {5g, resource assignment, tdd, tdd pattern, tdd scheduling},
}

SIGCOMM

Vivisecting Mobility Management in 5G Cellular Networks

Ahmad Hassan, Arvind Narayanan, Anlan Zhang, and 7 more authors

In Proceedings of the ACM SIGCOMM 2022 Conference, Amsterdam, Netherlands, Nov 2022

DOI Bib PDF Slides Website

@inproceedings{hassan2022vivisecting,
  author = {Hassan, Ahmad and Narayanan, Arvind and Zhang, Anlan and Ye, Wei and Zhu, Ruiyang and Jin, Shuowei and Carpenter, Jason and Mao, Z. Morley and Qian, Feng and Zhang, Zhi-Li},
  title = {Vivisecting Mobility Management in 5G Cellular Networks},
  year = {2022},
  isbn = {9781450394208},
  publisher = {Association for Computing Machinery},
  address = {New York, NY, USA},
  url = {https://doi.org/10.1145/3544216.3544217},
  doi = {10.1145/3544216.3544217},
  booktitle = {Proceedings of the ACM SIGCOMM 2022 Conference},
  pages = {86--100},
  numpages = {15},
  keywords = {coverage, 5G, dataset, energy, handover, mobility, handover prediction, mobility management, network measurement, application performance},
  location = {Amsterdam, Netherlands},
  series = {SIGCOMM '22},
  talk = {https://dl.acm.org/doi/10.1145/3544216.3544217},
}