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Shansan Gong

15 accepted papers

2026

Continuously Augmented Discrete Diffusion model for Categorical Generative Modeling

ICLR 2026poster

Standard discrete diffusion models treat all unobserved states the same way, typically mapping them to an absorbing [MASK] token. This creates an "information void" where global semantic information that may be inferred for the masked tokens from the unmasked tokens is not directly passed from one d…

Cited by 0SourcecodeScholar
2026

DiffuCoder: Understanding and Improving Masked Diffusion Models for Code Generation

ICLR 2026poster

Diffusion large language models (dLLMs) are compelling alternatives to autoregressive (AR) models because their denoising models operate over the entire sequence. The global planning and iterative refinement features of dLLMs are particularly useful for code generation. However, current training and…

Cited by 0SourcecodeScholar
2026

DreamOn: Diffusion Language Models For Code Infilling Beyond Fixed-size Canvas

ICLR 2026poster

Diffusion Language Models (DLMs) present a compelling alternative to autoregressive models, offering flexible, any-order infilling without specialized prompting design. However, their practical utility is blocked by a critical limitation: the requirement of a fixed-length masked sequence for generat…

Cited by 0SourcecodeScholar
2025

Beyond Autoregression: Discrete Diffusion for Complex Reasoning and Planning

ICLR 2025poster

Autoregressive language models, despite their impressive capabilities, struggle with complex reasoning and long-term planning tasks. We introduce discrete diffusion models as a novel solution to these challenges. Through the lens of subgoal imbalance, we demonstrate how diffusion models effectively…

2025

Design Choices for Extending the Context Length of Visual Language Models

ACL 2025long

Visual Language Models (VLMs) demonstrate impressive capabilities in processing multimodal inputs, yet applications such as visual agents, which require handling multiple images and high-resolution videos, demand enhanced long-range modeling. Moreover, existing open-source VLMs lack systematic explo…

2025

Long Chain-of-Thought Fine-tuning via Understanding-to-Reasoning Transition

EMNLP 2025

Reasoning models have demonstrated remarkable performance on complex tasks by generating long reasoning traces prior to producing final answers. However, previous research on long-context scaling in language models has generally focused on managing lengthy input prompts instead of producing long out

2025

Scaling Diffusion Language Models via Adaptation from Autoregressive Models

ICLR 2025poster

Diffusion Language Models (DLMs) have emerged as a promising new paradigm for text generative modeling, potentially addressing limitations of autoregressive (AR) models. However, current DLMs have been studied at a smaller scale compared to their AR counterparts and lack fair comparison on language…

2025

Why Does the Effective Context Length of LLMs Fall Short?

ICLR 2025poster

Advancements in distributed training and efficient attention mechanisms have significantly expanded the context window sizes of large language models (LLMs). However, recent work reveals that the effective context lengths of open-source LLMs often fall short, typically not exceeding half of their tr…

Cited by 60SourcePDFScholar
2024

BBA: Bi-Modal Behavioral Alignment for Reasoning with Large Vision-Language Models

ACL 2024findings

Multimodal reasoning stands as a pivotal capability for large vision-language models (LVLMs). The integration with Domain-Specific Languages (DSL), offering precise visual representations, equips these models with the opportunity to execute more accurate reasoning in complex and professional domains…

Cited by 6SourcePDFScholar
2024

Diffusion of Thought: Chain-of-Thought Reasoning in Diffusion Language Models

NeurIPS 2024poster

Recently, diffusion models have garnered significant interest in the field of text processing due to their many potential advantages compared to conventional autoregressive models. In this work, we propose Diffusion-of-Thought (DoT), a novel approach that integrates diffusion models with Chain-of-T…

Cited by 9SourcePDFScholar
2024

L-Eval: Instituting Standardized Evaluation for Long Context Language Models

ACL 2024long

Recently, there has been growing interest in long-context scaling of large language models (LLMs). To facilitate research in this field, we propose L-Eval to institute a more standardized evaluation for Long-Context Language Models (LCLMs) addressing two key aspects: dataset construction and evaluat…

2024

Training-Free Long-Context Scaling of Large Language Models

ICML 2024poster

The ability of Large Language Models (LLMs) to process and generate coherent text is markedly weakened when the number of input tokens exceeds their pretraining length. Given the expensive overhead of finetuning large-scale models with longer sequences, we propose a training-free approach named Dual…

2023

DiffuSeq-v2: Bridging Discrete and Continuous Text Spaces for Accelerated Seq2Seq Diffusion Models

EMNLP 2023short findings

Diffusion models have gained prominence in generating high-quality sequences of text. Nevertheless, current approaches predominantly represent discrete text within a continuous diffusion space, which incurs substantial computational overhead during training and results in slower sampling speeds. In…

Cited by 0SourcecodeScholar
2023

DiffuSeq: Sequence to Sequence Text Generation with Diffusion Models

ICLR 2023poster

Recently, diffusion models have emerged as a new paradigm for generative models. Despite the success in domains using continuous signals such as vision and audio, adapting diffusion models to natural language is under-explored due to the discrete nature of texts, especially for conditional generatio…

2023

Transferable and Efficient: Unifying Dynamic Multi-Domain Product Categorization

ACL 2023industry

As e-commerce platforms develop different business lines, a special but challenging product categorization scenario emerges, where there are multiple domain-specific category taxonomies and each of them evolves dynamically over time. In order to unify the categorization process and ensure efficiency…