User profiles for Zhengxu Xia

Zhengxu Xia

University of Chicago
Verified email at uchicago.edu
Cited by 430

Ekya: Continuous learning of video analytics models on edge compute servers

R Bhardwaj, Z Xia, G Ananthanarayanan… - … USENIX Symposium on …, 2022 - usenix.org
Video analytics applications use edge compute servers for processing videos. Compressed
models that are deployed on the edge servers for inference suffer from data drift where the …

Genet: Automatic curriculum generation for learning adaptation in networking

Z Xia, Y Zhou, FY Yan, J Jiang - … of the ACM SIGCOMM 2022 Conference, 2022 - dl.acm.org
As deep reinforcement learning (RL) showcases its strengths in networking, its pitfalls are
also coming to the public's attention. Training on a wide range of network environments leads …

Accmpeg: Optimizing video encoding for accurate video analytics

…, Q Zhang, A Arapin, H Wang, Z Xia… - … of Machine Learning …, 2022 - proceedings.mlsys.org
With more videos being recorded by edge sensors (cameras) and analyzed by computer-vision
deep neural nets (DNNs), a new breed of video streaming systems has emerged, with …

Towards performance clarity of edge video analytics

Z Xiao, Z Xia, H Zheng, BY Zhao… - 2021 IEEE/ACM …, 2021 - ieeexplore.ieee.org
Edge video analytics is becoming the solution to many safety and management tasks. Its
wide deployment, however, must first address the tension between inference accuracy and …

Deep convolutional bidirectional LSTM based transportation mode recognition

JV Jeyakumar, ES Lee, Z Xia, SS Sandha… - Proceedings of the …, 2018 - dl.acm.org
Traditional machine learning approaches for recognizing modes of transportation rely
heavily on hand-crafted feature extraction methods which require domain knowledge. So, we …

Optimizing Learned Networking Rate Adaptation via Guided Reward Reweighting

Z Xia - 2024 - knowledge.uchicago.edu
Deep reinforcement learning (RL) based rate adaptation has been popular in the past few
years. Unlike the handcrafted rate adaptation which requires manual effort from network …

Numerical simulations and experimental study of magneto-acousto-electrical tomography with plane transducer

Y Li, G Liu, H Xia, Z Xia - IEEE Transactions on Magnetics, 2017 - ieeexplore.ieee.org
This paper presents new results on a novel coupled-physics modality called magneto-acousto-electrical
tomography (MAET). With static magnetic field, a beam of ultrasound is applied …

Loss-tolerant neural video codec aware congestion control for real time video communication

Z Xia, H Li, J Jiang - arXiv preprint arXiv:2411.06742, 2024 - arxiv.org
Because of reinforcement learning's (RL) ability to automatically create more adaptive controlling
logics beyond the hand-crafted heuristics, numerous effort has been made to apply RL …

Automatic curriculum generation for learning adaptation in networking

Z Xia, Y Zhou, FY Yan, J Jiang - arXiv preprint arXiv:2202.05940, 2022 - arxiv.org
As deep reinforcement learning (RL) showcases its strengths in networking and systems, its
pitfalls also come to the public's attention--when trained to handle a wide range of network …

Characterization of a microbial polysaccharide-based bioflocculant and its anti-inflammatory and pro-coagulant activity

C Zhong, G Cao, K Rong, Z Xia, T Peng, H Chen… - Colloids and Surfaces B …, 2018 - Elsevier
We describe a novel bioflocculant, MBF-15, which is an exopolysaccharide extracted from
the alkaliphilic bacterium Paenibacillus jamilae. The biophysical characteristics of MBF-15 …