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Xueling Zhu

3 accepted papers

2026

Enhancing Kernel Power $K$-means: Scalable and Robust Clustering with Random Fourier Features and Possibilistic Method

AAAI 2026technical

Kernel power k-means (KPKM) leverages a family of means to mitigate local minima issues in kernel k-means. However, KPKM faces two key limitations: (1) the computational burden of the full kernel matrix restricts its use on extensive data, and (2) the lack of authentic centroid-sample assignment lea

Cited by 0SourcePDFScholar
2026

Parameter-Free Clustering via Self-Supervised Consensus Maximization

AAAI 2026technical

Clustering is a fundamental task in unsupervised learning, but most existing methods heavily rely on hyperparameters such as the number of clusters or other sensitive settings, limiting their applicability in real-world scenarios. To address this long-standing challenge, we propose a novel and fully

Cited by 0SourcePDFScholar
2025

Disentangling Invariant Subgraph via Variance Contrastive Estimation under Distribution Shifts

ICML 2025poster

Graph neural networks (GNNs) have achieved remarkable success, yet most are developed under the in-distribution assumption and fail to generalize to out-of-distribution (OOD) environments. To tackle this problem, some graph invariant learning methods aim to learn invariant subgraph against distribut…

Cited by 0SourcePDFScholar