Jianwei Niu

ArtCoder: An End-to-end Method for Generating Scanning-robust Stylized QR Codes

2021

Quick Response (QR) code is one of the most worldwide used two-dimensional codes. Traditional QR codes appear as random collections of black-and-white modules that lack visual semantics and aesthetic elements, which inspires the recent works …

GraphFed: A Personalized Subgraph Federated Learning Framework for Non-IID Graphs

2023

Recently, federated graph learning has attracted significant attention, as subgraphs of a global graph may often distribute across different institutions and are subject to privacy restrictions. However, inevitable data heterogeneity among sub-graphs can lead to …

GenBoost: Generative Modeling and Boosted Learning for Multi-hop Question Answering over Incomplete Knowledge Graphs

2023

Multi-hop question answering over incomplete knowledge graphs involves iteratively reasoning on the provided question and graph to find answers, while also tackling the inherent sparsity problem in the graph. Walk-based methods transform the reasoning process …