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Zecheng Tang

18 accepted papers

2026

CGMIS: Concept-Graph Based Multi-Hop Instructions Synthesis for Enhancing Long-Context Reasoning

AAAI 2026technical

High-quality multi-hop instruction data is critical for enhancing the reasoning capabilities of large language models (LLMs) in complex long-context scenarios, e.g., long-form reasoning. Nevertheless, there is currently a notable scarcity of such datasets within the community, and existing data synt

Cited by 0SourcePDFScholar
2026

Elastic Attention: Test-time Adaptive Sparsity Ratios for Efficient Transformers

ICML 2026poster

The quadratic complexity of standard attention mechanisms poses a significant scalability bottleneck for large language models (LLMs) in long-context scenarios. While hybrid attention strategies that combine sparse and full attention within a single model offer a viable solution, they typically empl…

Cited by 0SourceScholar
2026

Qwen-Image-Layered: Towards Inherent Editability via Layer Decomposition

CVPR 2026

Recent visual generative models often struggle with consistency during image editing due to the entangled nature of raster images, where all visual content is fused into a single canvas. In contrast, professional design tools employ layered representations, allowing isolated edits while preserving c

Cited by 0SourcecodeScholar
2026

Revisiting Long-context Modeling from Context Denoising Perspective

ICLR 2026poster

Long-context models (LCMs) have demonstrated great potential in processing long sequences, facilitating many real-world applications. The success of LCMs can be attributed to their ability to locate implicit critical information within the context for further prediction. However, recent research rev…

Cited by 0SourcecodeScholar
2025

FakeShield: Explainable Image Forgery Detection and Localization via Multi-modal Large Language Models

ICLR 2025poster

The rapid development of generative AI is a double-edged sword, which not only facilitates content creation but also makes image manipulation easier and more difficult to detect. Although current image forgery detection and localization (IFDL) methods are generally effective, they tend to face two c…

2025

Improving Rationality in the Reasoning Process of Language Models through Self-playing Game

ICML 2025poster

Large language models (LLMs) have demonstrated considerable reasoning abilities in various tasks such as mathematics and coding. However, recent studies indicate that even the best models lack true comprehension of their reasoning processes. In this paper, we explore how self-play can enhance the ra…

Cited by 0SourcePDFScholar
2025

L-CiteEval: A Suite for Evaluating Fidelity of Long-context Models

ACL 2025long

Long-context models(LCMs) have witnessed remarkable advancements in recent years, facilitating real-world tasks like long-document QA. The success of LCMs is founded on the hypothesis that the model demonstrates strong fidelity, enabling it to respond based on the provided long context rather than r…

Cited by 0SourcePDFScholar
2025

LOGO --- Long cOntext aliGnment via efficient preference Optimization

ICML 2025poster

Long-context models (LCMs) have shown great potential in processing long input sequences (even more than 100M tokens) conveniently and effectively. With significant progress, recent research has pointed out that LCMs can accurately locate token-level salient information within the context. Yet, the…

2025

OmniGuard: Hybrid Manipulation Localization via Augmented Versatile Deep Image Watermarking

CVPR 2025poster

With the rapid growth of generative AI and its widespread application in image editing, new risks have emerged regarding the authenticity and integrity of digital content. Existing versatile watermarking approaches suffer from trade-offs between tamper localization precision and visual quality. Cons…

Cited by 4SourcePDFScholar
2025

Revealing and Mitigating Over-Attention in Knowledge Editing

ICLR 2025poster

Large Language Models~(LLMs) have demonstrated superior performance across a wide range of tasks, but they still exhibit undesirable errors due to incorrect knowledge learned from the training data. To avoid this, knowledge editing methods emerged to precisely edit the specific model knowledge via e…

2025

Revealing and Mitigating the Local Pattern Shortcuts of Mamba

ACL 2025finding

Large language models (LLMs) have advanced significantly due to the attention mechanism, but their quadratic complexity and linear memory demands limit their performance on long-context tasks. Recently, researchers introduced Mamba, an advanced model built upon State Space Models (SSMs) that offers…

2024

CMD: a framework for Context-aware Model self-Detoxification

EMNLP 2024main

Text detoxification aims to minimize the risk of language models producing toxic content. Existing detoxification methods of directly constraining the model output or further training the model on the non-toxic corpus fail to achieve a decent balance between detoxification effectiveness and generati…

2024

LayoutNUWA: Revealing the Hidden Layout Expertise of Large Language Models

ICLR 2024poster

Graphic layout generation, a growing research field, plays a significant role in user engagement and information perception. Existing methods primarily treat layout generation as a numerical optimization task, focusing on quantitative aspects while overlooking the semantic information of layout, su…

2024

Rethinking Negative Instances for Generative Named Entity Recognition

ACL 2024findings

Large Language Models (LLMs) have demonstrated impressive capabilities for generalizing in unseen tasks. In the Named Entity Recognition (NER) task, recent advancements have seen the remarkable improvement of LLMs in a broad range of entity domains via instruction tuning, by adopting entity-centric…

2024

StrokeNUWA—Tokenizing Strokes for Vector Graphic Synthesis

ICML 2024poster

To leverage LLMs for visual synthesis, traditional methods convert raster image information into discrete grid tokens through specialized visual modules, while disrupting the model’s ability to capture the true semantic representation of visual scenes. This paper posits that an alternative represent…

Cited by 12SourcePDFScholar
2023

Can Diffusion Model Achieve Better Performance in Text Generation ? Bridging the Gap between Training and Inference !

ACL 2023findings

Diffusion models have been successfully adapted to text generation tasks by mapping the discrete text into the continuous space. However, there exist nonnegligible gaps between training and inference, owing to the absence of the forward process during inference. Thus, the model only predicts based o…

2023

Open-ended Long Text Generation via Masked Language Modeling

ACL 2023long

Pre-trained autoregressive (AR) language models such as BART and GPTs have dominated OPen-ended Long Text Generation (Open-LTG).However, the AR nature will decrease the inference efficiency along with the increase of generation length, which hinder their application in Open-LTG.To improve inference…

2022

Improving Temporal Generalization of Pre-trained Language Models with Lexical Semantic Change

EMNLP 2022main

Recent research has revealed that neural language models at scale suffer from poor temporal generalization capability, i.e., language model pre-trained on static data from past years performs worse over time on emerging data. Existing methods mainly perform continual training to mitigate such a misa…