Search Results for author: Zexi Huang

Found 5 papers, 4 papers with code

Global Counterfactual Explainer for Graph Neural Networks

1 code implementation21 Oct 2022 Mert Kosan, Zexi Huang, Sourav Medya, Sayan Ranu, Ambuj Singh

One way to address this is counterfactual reasoning where the objective is to change the GNN prediction by minimal changes in the input graph.

Counterfactual Explanation Graph Classification

Graph Neural Diffusion Networks for Semi-supervised Learning

1 code implementation24 Jan 2022 Wei Ye, Zexi Huang, Yunqi Hong, Ambuj Singh

To solve these two issues, we propose a new graph neural network called GND-Nets (for Graph Neural Diffusion Networks) that exploits the local and global neighborhood information of a vertex in a single layer.

SECP-Net: SE-Connection Pyramid Network of Organ At Risk Segmentation for Nasopharyngeal Carcinoma

no code implementations28 Dec 2021 Zexi Huang, Lihua Guo, Xin Yang, Sijuan Huang

SECP-Net extracts global and multi-size information flow with se connection (SEC) modules and a pyramid structure of network for improving the segmentation performance, especially that of small organs.

Computed Tomography (CT) Image Segmentation +2

A Broader Picture of Random-walk Based Graph Embedding

1 code implementation24 Oct 2021 Zexi Huang, Arlei Silva, Ambuj Singh

Graph embedding based on random-walks supports effective solutions for many graph-related downstream tasks.

Graph Embedding Link Prediction

POLE: Polarized Embedding for Signed Networks

1 code implementation17 Oct 2021 Zexi Huang, Arlei Silva, Ambuj Singh

From the 2016 U. S. presidential election to the 2021 Capitol riots to the spread of misinformation related to COVID-19, many have blamed social media for today's deeply divided society.

Link Prediction Misinformation

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