← Search

Yujing Liu

4 accepted papers

2026

Rethinking Feature Alignment in Generalist Graph Anomaly Detection: A Relational Fingerprint-based Approach

ICML 2026poster

Extending traditional graph anomaly detection (GAD) from one-for-one to one-for-all paradigms, generalist GAD aims to learn a universal detector for identifying anomalies on unseen graphs without graph-specific retraining. Nevertheless, existing approaches primarily focus on aligning heterogeneous f…

Cited by 0SourceScholar
2025

Noisy Node Classification by Bi-level Optimization Based Multi-Teacher Distillation

AAAI 2025technical

Previous graph neural networks (GNNs) usually assume that the graph data is with clean labels for representation learning, but it is not true in real applications. In this paper, we propose a new multi-teacher distillation method based on bi-level optimization (namely BO-NNC), to conduct noisy node…

Cited by 2SourcePDFScholar
2024

Convergence of Online Learning Algorithm for a Mixture of Multiple Linear Regressions

ICML 2024poster

This paper considers the parameter learning and data clustering problem for MLR with multiple sub-models and arbitrary mixing weights. To deal with the data streaming case, we propose an online learning algorithm to estimate the unknown parameters. By utilizing Ljung's ODE method, we establish the a…

Cited by 2SourcePDFScholar
2024

Multiplex Graph Representation Learning via Bi-level Optimization

IJCAI 2024poster

Many multiplex graph representation learning (MGRL) methods have been demonstrated to 1) ignore the globally positive and negative relationships among node features; and 2) usually utilize the node classification task to train both graph structure learning and representation learning parameters, and…

Cited by 1SourcePDFScholar