I’m an incoming PhD student in Computer Science at Fudan University.

I work on graph and flow models, in theory and in practice.

Papers

1. Eigenbasis-Independent Learnable Spectral Positional Encodings for Directed Graphs via Hermitian Block Krylov Subspaces. Jiaqing Xie and Yuxin Wang. 2026. [arXiv]

2. Benchmarking Positional Encodings for GNNs and Graph Transformers. Florian Grotschla^*, Jiaqing Xie^*, and Roger Wattenhofer. KDD 2026. [arXiv] [code]

^* Equal contribution.