About Me - Chang, Zhangyu 常章豫

I have received my Ph.D. degree in January 2024 from the Department of Computer Science and Engineering, the Hong Kong University of Science and Technology (HKUST).
My thesis supervisor is Prof. S.-H. Gary Chan.
I received the B.Sc. degree (highest honor) in Physics and Computer Science (double major), and the M.Phil. degree in Computer Science and Engineering from HKUST in 2011 and 2015, respectively.
My research interests include multimedia networking, fog/edge computing, and video/location data analytics.

Publications

Z. Chang and S.-H. G. Chan, “Bi-Criteria Approximation for a Multi-Origin Multi-Channel Auto-Scaling Live Streaming Cloud,” IEEE Transactions on Multimedia, Vol. 25, pp. 2839-2850, July 2023. [Online]. Available: https://doi.org/10.1109/TMM.2022.3152093 [Slides (PDF)]
Z. Chang and S.-H. G. Chan, “An Approximation Algorithm to Maximize User Capacity for an Auto-scaling VoD System,” IEEE Transactions on Multimedia, Vol. 23, pp. 3714-3725, October 2021. [Online]. Available: https://doi.org/10.1109/TMM.2020.3031068 [Slides (PDF)]
Z. Chang and S.-H. G. Chan, “Video Management and Resource Allocation for a Large-Scale VoD Cloud,” ACM Transactions on Multimedia Computing, Communication and Applications (TOMM) Special Issue on Multimedia Big Data: Networking, vol. 12, pp72:1-72:21, Sept. 2016. [Online]. Available: https://doi.org/10.1145/2983638 [Slides (PDF)]
Z. Chang and S.-H. G. Chan, “Bucket-Filling: An Asymptotically Optimal VoD Network with Source Coding,” IEEE Transactions on Multimedia, Vol. 17, No. 5, pp. 723-735, May 2015. [Online]. Available: https://doi.org/10.1109/TMM.2015.2416636 [Slides (PDF) | MPhil Thesis]

J. Dai, Z. Chang, and S.-H. G. Chan, “Delay Optimization for Multi-source Multi-channel Overlay Live Streaming,” in Proceedings of IEEE ICC 2015 - Communications Software, Services and Multimedia Applications Symposium (ICC’15), (London, United Kingdom), pp. 8587-8592, 8-12, June 2015. [Online]. Available: https://doi.org/10.1109/ICC.2015.7249435 [Slides (PDF)]