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Context-aware methods have achieved remarkable advancements in supervised scene text recognition by leveraging semantic priors from words. Considering the heterogeneity of text and background in STR, we propose that such contextual priors…

计算机视觉与模式识别 · 计算机科学 2024-11-20 Tiancheng Lin , Jinglei Zhang , Yi Xu , Kai Chen , Rui Zhang , Chang-Wen Chen

Recent advances in diffusion language models (DLMs) have presented a promising alternative to traditional autoregressive large language models (LLMs). However, DLMs still lag behind LLMs in reasoning performance, especially as the number of…

计算与语言 · 计算机科学 2025-10-27 Chenglong Wang , Yang Gan , Hang Zhou , Chi Hu , Yongyu Mu , Kai Song , Murun Yang , Bei Li , Chunliang Zhang , Tongran Liu , Jingbo Zhu , Zhengtao Yu , Tong Xiao

Inspired by the recent success of sequence modeling in RL and the use of masked language model for pre-training, we propose a masked model for pre-training in RL, RePreM (Representation Pre-training with Masked Model), which trains the…

机器学习 · 计算机科学 2023-03-06 Yuanying Cai , Chuheng Zhang , Wei Shen , Xuyun Zhang , Wenjie Ruan , Longbo Huang

Training stability is a persistent challenge in the pre-training of large language models (LLMs), particularly for architectures such as Post-Norm Transformers, which are prone to gradient explosion and dissipation. In this paper, we…

计算与语言 · 计算机科学 2025-02-26 Ya Wang , Zhijian Zhuo , Yutao Zeng , Xun Zhou , Jian Yang , Xiaoqing Li

Model-free reinforcement learning (RL) is a powerful, general tool for learning complex behaviors. However, its sample efficiency is often impractically large for solving challenging real-world problems, even with off-policy algorithms such…

机器学习 · 计算机科学 2020-02-25 Vitchyr Pong , Shixiang Gu , Murtaza Dalal , Sergey Levine

We present a masked diffusion language modeling framework for data-efficient training for the BabyLM 2025 Challenge. Our approach applies diffusion training objectives to language modeling under strict data constraints, incorporating…

Inference with Transformer-based Large Language Models (LLMs) on long sequences is both costly and slow due to the quadratic complexity of the self-attention mechanism. We introduce Star Attention, a two-phase block-sparse approximation…

计算与语言 · 计算机科学 2025-06-02 Shantanu Acharya , Fei Jia , Boris Ginsburg

Block Diffusion Models (BDMs) support parallel generation, flexible-length output, and KV caching, making them promising for efficient document parsing. However, existing BDMs bind denoising and cache commitment to fixed block boundaries:…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Mingxu Chai , Ziyu Shen , Chenyu Liu , Kaidi Zhang , Jiazheng Zhang , Dingwei Zhu , Zhiheng Xi , Ruoyu Chen , Jun Long , Jihua Kang , Tao Gui , Qi Zhang

Although large vision-language models (LVLMs) leverage rich visual token representations to achieve strong performance on multimodal tasks, these tokens also introduce significant computational overhead during inference. Existing…

机器学习 · 计算机科学 2025-05-20 Yichen Guo , Hanze Li , Zonghao Zhang , Jinhao You , Kai Tang , Xiande Huang

Vision-language-action (VLA) models show promising knowledge accumulation ability from pretraining, yet continual learning in VLA remains challenging, especially for efficient adaptation. Existing continual imitation learning (CIL) methods…

机器人学 · 计算机科学 2026-05-11 Yuxuan Wu , Guangming Wang , Zhiheng Yang , Tianchen Deng , Maoqing Yao , Brian Sheil , Hesheng Wang

Discrete diffusion language models (dLLMs) accelerate text generation by unmasking multiple tokens in parallel. However, parallel decoding introduces a distributional mismatch: it approximates the joint conditional using a fully factorized…

计算与语言 · 计算机科学 2026-04-06 Liran Ringel , Ameen Ali , Yaniv Romano

The performance of pre-trained masked diffusion models is often constrained by their sampling procedure, which makes decisions irreversible and struggles in low-step generation regimes. We introduce a novel sampling algorithm that works…

Recent attempts to interleave autoregressive (AR) sketchers with diffusion-based refiners over continuous speech representations have shown promise, but they remain brittle under distribution shift and offer limited levers for…

音频与语音处理 · 电气工程与系统科学 2025-10-17 Yakun Song , Xiaobin Zhuang , Jiawei Chen , Zhikang Niu , Guanrou Yang , Chenpeng Du , Dongya Jia , Zhuo Chen , Yuping Wang , Yuxuan Wang , Xie Chen

Reparameterized diffusion models (RDMs) have recently matched autoregressive methods in protein generation, motivating their use for challenging tasks such as designing membrane proteins, which possess interleaved soluble and transmembrane…

生物大分子 · 定量生物学 2025-09-30 Shrey Goel , Peregrine M. Schray , Yinuo Zhang , Sophia Vincoff , Huong T. Kratochvil , Pranam Chatterjee

Diffusion language models (DLMs) have recently emerged as a compelling alternative to autoregressive generation, offering parallel generation and improved global coherence. During inference, DLMs generate text by iteratively denoising…

This paper proposes a novel non-autoregressive (NAR) block-based Attention Mask Decoder (AMD) that flexibly balances performance-efficiency trade-offs for Conformer ASR systems. AMD performs parallel NAR inference within contiguous blocks…

Recent masked diffusion language models (MDLMs), such as LLaDA and Dream, have achieved performance comparable to autoregressive large language models. Unlike autoregressive models, which generate text sequentially, MDLMs generate text by…

计算与语言 · 计算机科学 2026-05-19 Georu Lee , Seungwon Jeong , Hoki Kim , Jinseong Park , Woojin Lee

Image rescaling aims to learn the optimal low-resolution (LR) image that can be accurately reconstructed to its original high-resolution (HR) counterpart, providing an efficient image processing and storage method for ultra-high definition…

计算机视觉与模式识别 · 计算机科学 2025-03-11 Ce Wang , Zhenyu Hu , Wanjie Sun , Zhenzhong Chen

While LLM-based Automatic Speech Recognition (ASR) achieves high accuracy, its speed is limited by sequential autoregressive decoding. Diffusion Language Models (DLMs) offer a parallel alternative, yet their decoding strategies remain…

音频与语音处理 · 电气工程与系统科学 2026-05-29 Jeong Hun Yeo , Minsu Kim , Hyeongseop Rha , Yong Man Ro

Masked language models (MLMs) such as BERT and RoBERTa have revolutionized the field of Natural Language Understanding in the past few years. However, existing pre-trained MLMs often output an anisotropic distribution of token…

计算与语言 · 计算机科学 2022-04-29 Yixuan Su , Fangyu Liu , Zaiqiao Meng , Tian Lan , Lei Shu , Ehsan Shareghi , Nigel Collier