4 papers
Solver-Integrated Adversarial Attacking and Training of Neural Operators
Yifei Sun
Neural operators are widely used as fast surrogates for numerical PDE solvers, mapping input functions to solution functions. However, their generalizability and robustness are not…
Hodge Decomposition for Urban Traffic Flow: Limits on Dense OD Graphs and Advantages on Road Networks - Los Angeles Case
Yifei Sun
I study Hodge decomposition (HodgeRank) for urban traffic flow on two graph representations: dense origin--destination (OD) graphs and road-segment networks. Reproducing the method…
Receiver-Centric Generative Semantic Communications
Xunze Liu, Yifei Sun, Zhaorui Wang +4
This paper investigates semantic communications between a transmitter and a receiver, where original data, such as videos of interest to the receiver, is stored at the transmitter.…
Rethinking Grant-Free Protocol in mMTC
Minhao Zhu, Yifei Sun, Lizhao You +3
This paper revisits the identity detection problem under the current grant-free protocol in massive machine-type communications (mMTC) by asking the following question: for stable…