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Pengyu Xu

5 accepted papers

2026

Learning Neural Operators from Partial Observations via Latent Autoregressive Modeling

AAAI 2026technical

Real-world scientific applications frequently encounter incomplete observational data due to sensor limitations, geographic constraints, or measurement costs. Although neural operators significantly advanced PDE solving in terms of computational efficiency and accuracy, their underlying assumption o

Cited by 0SourcePDFScholar
2024

Enhancing Multi-Label Text Classification under Label-Dependent Noise: A Label-Specific Denoising Framework

EMNLP 2024finding

Recent advancements in noisy multi-label text classification have primarily relied on the class-conditional noise (CCN) assumption, which treats each label independently undergoing label flipping to generate noisy labels. However, in real-world scenarios, noisy labels often exhibit dependencies with…

2024

Noisy Multi-Label Text Classification via Instance-Label Pair Correction

NAACL 2024findings

In noisy label learning, instance selection based on small-loss criteria has been proven to be highly effective. However, in the case of noisy multi-label text classification (NMLTC), the presence of noise is not limited to the instance-level but extends to the (instance-label) pair-level.This gives…

Cited by 1SourcePDFScholar
2024

Taming Prompt-Based Data Augmentation for Long-Tailed Extreme Multi-Label Text Classification

ICASSP 2024accepted

In extreme multi-label text classification (XMC), labels usually follow a long-tailed distribution, where most labels only contain a small number of documents and limit the performance of XMC. Data augmentation (DA) is a simple but effective strategy to solve such low-resource problems. In this pape…

Cited by 0SourceScholar
2023

Label-Specific Feature Augmentation for Long-Tailed Multi-Label Text Classification

AAAI 2023technical

Multi-label text classification (MLTC) involves tagging a document with its most relevant subset of labels from a label set. In real applications, labels usually follow a long-tailed distribution, where most labels (called as tail-label) only contain a small number of documents and limit the perform…