Ke Sun
Author directory2026
When AI Settles Down: Late-Stage Stability as a Signature of AI-Generated Text Detection
Ke Sun | Guangsheng Bao | Han Cui | Yue Zhang
Findings of the Association for Computational Linguistics: EMNLP 2026
Ke Sun | Guangsheng Bao | Han Cui | Yue Zhang
Findings of the Association for Computational Linguistics: EMNLP 2026
Zero-shot detection methods for AI-generated text typically aggregate token-level statistics across entire sequences, overlooking the temporal dynamics inherent to autoregressive generation. We analyze over 120k text samples and reveal Late-Stage Volatility Decay: AI-generated text exhibits rapidly stabilizing log probability fluctuations as generation progresses, while human writing maintains higher variability throughout. This divergence peaks in the second half of sequences, where AI-generated text shows 24–32% lower volatility. Based on this finding, we propose two simple features: Derivative Dispersion and Local Volatility, which computed exclusively from late-stage statistics. Without perturbation sampling or additional model access, our method achieves state-of-the-art performance on EvoBench and MAGE benchmarks and demonstrates strong complementarity with existing global methods.
From AI Reviewers to Evidence Assistants: Quantifying the Human-AI Responsibility Boundary in Peer Review
Zhouyang Wang | Qiujie Xie | Minjun Zhu | Shichen Li | Shulin Huang | Han Cui | Yiran Ding | Panzhong Lu | Zhenhao Liu | Fuchen Shen | Junshu Pan | Dalv Yin | Ke Sun | Zhiyuan Ning | Yixuan Weng | Peifeng Li | Yue Zhang
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing
Zhouyang Wang | Qiujie Xie | Minjun Zhu | Shichen Li | Shulin Huang | Han Cui | Yiran Ding | Panzhong Lu | Zhenhao Liu | Fuchen Shen | Junshu Pan | Dalv Yin | Ke Sun | Zhiyuan Ning | Yixuan Weng | Peifeng Li | Yue Zhang
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing
The rapid growth of AI conference submissions is putting new pressure on peer review. AI reviewer systems are increasingly proposed as support, but prior work leaves unresolved what responsibility their outputs should carry when they can surface useful critiques yet remain risky as independent judgments. We frame this as a responsibility-boundary problem. Using 600 ICLR 2026 submissions, 2,231 human reviews, and 3,600 AI reviews, we operationalize this boundary through usable feedback, rating calibration, panel breadth, and grounded synthesis. AI can prepare critiques and organize evidence, while scoring, independent panel judgment, high-level synthesis, and final responsibility remain human-led. A GLM-5.2 validation on 100 NeurIPS 2022 papers with pre-ChatGPT reviews reproduces the workflow and calibration patterns. Motivated by this boundary, we develop Review Copilot, a workflow in which AI suggestions are inspected, edited, or rejected by human reviewers. In an initial controlled reviewer-in-the-loop study, Human+AI reviews improve actionability, evidence support, and professionalism relative to standalone baselines, while scores and recommendations remain human-authored. A user study of 275 reviewers across 411 papers further supports its practical usefulness. Together, these results support a review paradigm in which AI expands evidence-grounded critique while humans retain judgment, synthesis, and accountability.
AutoFigure-Edit: Generating Editable Scientific Illustrations via Reference-Guided Styling
Zhen Lin | Qiujie Xie | Minjun Zhu | Shichen Li | QiYao Sun | Enhao Gu | Yiran Ding | Ke Sun | Fang Guo | Panzhong Lu | Zhiyuan Ning | Yixuan Weng | Yue Zhang
Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 3: System Demonstrations)
Zhen Lin | Qiujie Xie | Minjun Zhu | Shichen Li | QiYao Sun | Enhao Gu | Yiran Ding | Ke Sun | Fang Guo | Panzhong Lu | Zhiyuan Ning | Yixuan Weng | Yue Zhang
Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 3: System Demonstrations)
High-quality scientific illustrations are essential for communicating complex scientific and technical concepts, yet existing automated systems remain limited in editability, stylistic controllability, and efficiency. We present AutoFigure-Edit, an end-to-end system that generates fully editable scientific illustrations from long-form scientific text while enabling flexible style adaptation through user-provided reference images. By combining long-context understanding, reference-guided styling, and native SVG editing, it enables efficient creation and refinement of high-quality scientific illustrations. To facilitate further progress in this field, we release the video at https://youtu.be/10IH8SyJjAQ, the full codebase at https://github.com/ResearAI/AutoFigure-Edit and provide a live demo for easy access and interactive use at https://autofigure.cc/.
2024
Adaption-of-Thought: Learning Question Difficulty Improves Large Language Models for Reasoning
Mayi Xu | Yongqi Li | Ke Sun | Tieyun Qian
Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing
Mayi Xu | Yongqi Li | Ke Sun | Tieyun Qian
Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing
Large language models (LLMs) have shown excellent capability for solving reasoning problems. Existing approaches do not differentiate the question difficulty when designing prompting methods for them. Clearly, a simple method cannot elicit sufficient knowledge from LLMs to answer a hard question. Meanwhile, a sophisticated one will force the LLM to generate redundant or even inaccurate intermediate steps toward a simple question. Consequently, the performance of existing methods fluctuates among various questions.In this work, we propose Adaption-of-Thought (AdoT), an adaptive method to improve LLMs for the reasoning problem, which first measures the question difficulty and then tailors demonstration set construction and difficulty-adapted retrieval strategies for the adaptive demonstration construction. Experimental results on three reasoning tasks prove the superiority of our proposed method, showing an absolute improvement of up to 5.5% on arithmetic reasoning, 7.4% on symbolic reasoning, and 2.3% on commonsense reasoning. Our codes and implementation details are available at: https://github.com/NLPGM/AdoT
2023
Dynamic Open-book Prompt for Conversational Recommender System
Xuan Ma | Tieyun Qian | Ke Sun
Findings of the Association for Computational Linguistics: EMNLP 2023
Xuan Ma | Tieyun Qian | Ke Sun
Findings of the Association for Computational Linguistics: EMNLP 2023
Conversational Recommender System (CRS) aims to deliver personalized recommendations through interactive dialogues. Recent advances in prompt learning have shed light on this task. However, the performance of existing methods is confined by the limited context within ongoing conversations. Moreover, these methods utilize training samples only for prompt parameter training. The constructed prompt lacks the ability to refer to the training data during inference, which exacerbates the problem of limited context. To solve this problem, we propose a novel Dynamic Open-book Prompt approach, where the open book stores users’ experiences in historical data, and we dynamically construct the prompt to memorize the user’s current utterance and selectively retrieve relevant contexts from the open book. Specifically, we first build an item-recommendation graph from the open book and convolute on the graph to form a base prompt which contains more information besides the finite dialogue. Then, we enhance the representation learning process of the prompt by tailoring similar contexts in the graph into the prompt to meet the user’s current need. This ensures the prompt provides targeted suggestions that are both informed and contextually relevant. Extensive experimental results on the ReDial dataset demonstrate the significant improvements achieved by our proposed model over the state-of-the-art methods. Our code and data are available at https://github.com/NLPWM-WHU/DOP.
Gloss-Free End-to-End Sign Language Translation
Kezhou Lin | Xiaohan Wang | Linchao Zhu | Ke Sun | Bang Zhang | Yi Yang
Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
Kezhou Lin | Xiaohan Wang | Linchao Zhu | Ke Sun | Bang Zhang | Yi Yang
Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
In this paper, we tackle the problem of sign language translation (SLT) without gloss annotations. Although intermediate representation like gloss has been proven effective, gloss annotations are hard to acquire, especially in large quantities. This limits the domain coverage of translation datasets, thus handicapping real-world applications. To mitigate this problem, we design the Gloss-Free End-to-end sign language translation framework (GloFE). Our method improves the performance of SLT in the gloss-free setting by exploiting the shared underlying semantics of signs and the corresponding spoken translation. Common concepts are extracted from the text and used as a weak form of intermediate representation. The global embedding of these concepts is used as a query for cross-attention to find the corresponding information within the learned visual features. In a contrastive manner, we encourage the similarity of query results between samples containing such concepts and decrease those that do not. We obtained state-of-the-art results on large-scale datasets, including OpenASL and How2Sign.
2020
DuSQL: A Large-Scale and Pragmatic Chinese Text-to-SQL Dataset
Lijie Wang | Ao Zhang | Kun Wu | Ke Sun | Zhenghua Li | Hua Wu | Min Zhang | Haifeng Wang
Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP)
Lijie Wang | Ao Zhang | Kun Wu | Ke Sun | Zhenghua Li | Hua Wu | Min Zhang | Haifeng Wang
Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP)
Due to the lack of labeled data, previous research on text-to-SQL parsing mainly focuses on English. Representative English datasets include ATIS, WikiSQL, Spider, etc. This paper presents DuSQL, a larges-scale and pragmatic Chinese dataset for the cross-domain text-to-SQL task, containing 200 databases, 813 tables, and 23,797 question/SQL pairs. Our new dataset has three major characteristics. First, by manually analyzing questions from several representative applications, we try to figure out the true distribution of SQL queries in real-life needs. Second, DuSQL contains a considerable proportion of SQL queries involving row or column calculations, motivated by our analysis on the SQL query distributions. Finally, we adopt an effective data construction framework via human-computer collaboration. The basic idea is automatically generating SQL queries based on the SQL grammar and constrained by the given database. This paper describes in detail the construction process and data statistics of DuSQL. Moreover, we present and compare performance of several open-source text-to-SQL parsers with minor modification to accommodate Chinese, including a simple yet effective extension to IRNet for handling calculation SQL queries.
2013
A Hierarchical Semantics-Aware Distributional Similarity Scheme
Shuqi Sun | Ke Sun | Shiqi Zhao | Haifeng Wang | Muyun Yang | Sheng Li
Proceedings of the Sixth International Joint Conference on Natural Language Processing
Shuqi Sun | Ke Sun | Shiqi Zhao | Haifeng Wang | Muyun Yang | Sheng Li
Proceedings of the Sixth International Joint Conference on Natural Language Processing
2008
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Co-authors
- Yue Zhang 3
- Han Cui 2
- Yiran Ding 2
- Shichen Li 2
- Panzhong Lu 2
- Zhiyuan Ning 2
- Tieyun Qian 2
- Haifeng Wang 2
- Yixuan Weng 2
- Qiujie Xie 2
- Minjun Zhu 2
- Guangsheng Bao 1
- Enhao Gu 1
- Fang Guo 1
- Shulin Huang 1
- Peifeng Li (李培峰) 1
- Sheng Li 1
- Yongqi Li 1
- Zhenghua Li 1
- Kezhou Lin 1
- Zhen Lin 1
- Zhenhao Liu 1
- Xuan Ma 1
- Junshu Pan 1
- Fuchen Shen 1
- Cheng-Jie Sun (孙承杰) 1
- Guang-Lu Sun 1
- QiYao Sun 1
- Shuqi Sun 1
- Lijie Wang 1
- Xiao-Long Wang 1
- Xiaohan Wang 1
- Zhouyang Wang 1
- Hua Wu (吴华) 1
- Kun Wu 1
- Mayi Xu 1
- Muyun Yang (杨沐昀) 1
- Yi Yang 1
- Dalv Yin 1
- Ao Zhang 1
- Bang Zhang 1
- Min Zhang 1
- Shiqi Zhao 1
- Linchao Zhu 1