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Zishan Xu

8 accepted papers

2026

Decoupling Continual Semantic Segmentation

AAAI 2026technical

Continual Semantic Segmentation (CSS) requires learning new classes without forgetting previously acquired knowledge, addressing the fundamental challenge of catastrophic forgetting in dense prediction tasks. However, existing CSS methods typically employ single-stage encoder-decoder architectures w

Cited by 0SourcePDFScholar
2026

VideoSeg-R1:Reasoning Video Object Segmentation via Reinforcement Learning

AAAI 2026technical

Traditional video reasoning segmentation methods rely on supervised fine-tuning, which limits generalization to out-of-distribution scenarios and lacks explicit reasoning. To address this, we propose VideoSeg-R1, the first framework to introduce reinforcement learning into video reasoning segmentati

Cited by 0SourcePDFScholar
2025

CLEME2.0: Towards Interpretable Evaluation by Disentangling Edits for Grammatical Error Correction

ACL 2025long

The paper focuses on the interpretability of Grammatical Error Correction (GEC) evaluation metrics, which received little attention in previous studies. To bridge the gap, we introduce **CLEME2.0**, a reference-based metric describing four fundamental aspects of GEC systems: hit-correction, wrong-co…

2025

DAST: Context-Aware Compression in LLMs via Dynamic Allocation of Soft Tokens

ACL 2025finding

Large Language Models (LLMs) face computational inefficiencies and redundant processing when handling long context inputs, prompting a focus on compression techniques. While existing semantic vector-based compression methods achieve promising performance, these methods fail to account for the intrin…

Cited by 0SourcePDFScholar
2025

Diagnosing Failures in Large Language Models’ Answers: Integrating Error Attribution into Evaluation Framework

ACL 2025finding

With the widespread application of Large Language Models (LLMs) in various tasks, the mainstream LLM platforms generate massive user-model interactions daily. In order to efficiently analyze the performance of models and diagnose failures in their answers, it is essential to develop an automated fra…

2025

EXCGEC: A Benchmark for Edit-Wise Explainable Chinese Grammatical Error Correction

AAAI 2025technical

Existing studies explore the explainability of Grammatical Error Correction (GEC) in a limited scenario, where they ignore the interaction between corrections and explanations and have not established a corresponding comprehensive benchmark. To bridge the gap, this paper first introduces the task of…

2025

RAISE: Reinforced Adaptive Instruction Selection For Large Language Models

EMNLP 2025

Instruction tuning of large language models (LLMs) benefits more from a handful of high-quality examples than from hordes of low-quality ones. Existing selection methods typically rely on static, heuristic quality scores and are executed only once before training. Consequently, they neither adapt to

2024

Towards Real-World Writing Assistance: A Chinese Character Checking Benchmark with Faked and Misspelled Characters

ACL 2024long

Writing assistance aims to improve the correctness and quality of input texts, with character checking being crucial in detecting and correcting wrong characters. In the real world where handwriting occupies the vast majority, characters that humans get wrong include faked characters (i.e., untrue c…