← Search

Siyu Yi

10 accepted papers

2026

Compactness and Consistency: A Conjoint Framework for Deep Graph Clustering

ICLR 2026oral

Graph clustering is a fundamental task in data analysis, aiming at grouping nodes with similar characteristics in the graph into clusters. This problem has been widely explored using graph neural networks (GNNs) due to their ability to leverage node attributes and graph topology for effective cluste…

Cited by 0SourcecodeScholar
2026

Evidence-aware Integration and Domain Identification of Spatial Transcriptomics Data

AAAI 2026technical

Spatial transcriptomics (ST) enables joint profiling of gene expression and spatial positions, thereby revealing spatially resolved biological functions. However, many existing ST analysis methods often fail to explicitly quantify the belief and uncertainty in decisions caused by noisy ST data, maki

Cited by 0SourcePDFScholar
2026

FairGC: Fostering Individual and Group Fairness for Deep Graph Clustering

AAAI 2026technical

The widespread adoption of graph neural networks (GNNs) has brought increased attention to fairness issues related to sensitive attributes, such as gender and race, in practical scenarios. However, this concern remains largely unexplored in the context of graph clustering. Conventional fair graph cl

Cited by 0SourcePDFScholar
2026

Identifying and Correcting Label Noise for Robust GNNs via Influence Contradiction

ICML 2026poster

Graph Neural Networks (GNNs) have shown remarkable capabilities in learning from graph-structured data with various applications such as social analysis and bioinformatics. However, the presence of label noise in real scenarios poses a significant challenge in learning robust GNNs, and their effecti…

Cited by 0SourceScholar
2026

scGTN: Deep Siamese Graph Transformer Network for Single-cell RNA Sequencing Clustering

IJCAI 2026

Single-cell RNA sequencing (scRNA-seq) serves a pivotal role in characterizing gene expression at the cellular level, enabling the identification of cell types and advancing the understanding of cellular heterogeneity. Despite the significant progress in scRNA-seq data clustering, we argue that curr

Cited by 0Scholar
2025

Cluster-guided Contrastive Class-imbalanced Graph Classification

AAAI 2025technical

This paper studies the problem of class-imbalanced graph classification, which aims at effectively classifying the graph categories in scenarios with imbalanced class distributions. While graph neural networks (GNNs) have achieved remarkable success, their modeling ability on imbalanced graph-struct…

Cited by 1SourcePDFScholar
2025

Dual Prototype-Enhanced Contrastive Framework for Class-Imbalanced Graph Domain Adaptation

NeurIPS 2025poster

Graph transfer learning, especially in unsupervised domain adaptation, aims to transfer knowledge from a label-abundant source graph to an unlabeled target graph. However, most existing approaches overlook the common issue of label imbalance in the source domain, typically assuming a balanced label…

Cited by 0SourcecodeScholar
2025

PALA: Class-imbalanced Graph Domain Adaptation via Prototype-anchored Learning and Alignment

IJCAI 2025

Graph domain adaptation is a key subfield of graph transfer learning that aims to bridge domain gaps by transferring knowledge from a label-rich source graph to an unlabeled target graph. However, most existing methods assume balanced labels in the source graph, which often fails in practice and lea

2024

A Survey of Data-Efficient Graph Learning

IJCAI 2024poster

Graph-structured data, prevalent in domains ranging from social networks to biochemical analysis, serve as the foundation for diverse real-world systems. While graph neural networks demonstrate proficiency in modeling this type of data, their success is often reliant on significant amounts of labele…

Cited by 25SourcePDFScholar
2024

Hypergraph-enhanced Dual Semi-supervised Graph Classification

ICML 2024poster

In this paper, we study semi-supervised graph classification, which aims at accurately predicting the categories of graphs in scenarios with limited labeled graphs and abundant unlabeled graphs. Despite the promising capability of graph neural networks (GNNs), they typically require a large number o…

Cited by 18SourcePDFScholar