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Autoregressive models have emerged as a powerful generative paradigm for visual generation. The current de-facto standard of next token prediction commonly operates over a single-scale sequence of dense image tokens, and is incapable of…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Guangting Zheng , Yehao Li , Yingwei Pan , Jiajun Deng , Ting Yao , Yanyong Zhang , Tao Mei

Visual Auto-Regressive modeling (VAR) has shown promise in bridging the speed and quality gap between autoregressive image models and diffusion models. VAR reformulates autoregressive modeling by decomposing an image into successive…

Computer Vision and Pattern Recognition · Computer Science 2025-06-06 Hermann Kumbong , Xian Liu , Tsung-Yi Lin , Ming-Yu Liu , Xihui Liu , Ziwei Liu , Daniel Y. Fu , Christopher Ré , David W. Romero

Handwritten mathematical expression recognition is a challenging problem due to the complicated two-dimensional structures, ambiguous handwriting input and variant scales of handwritten math symbols. To settle this problem, we utilize the…

Computer Vision and Pattern Recognition · Computer Science 2018-02-01 Jianshu Zhang , Jun Du , Lirong Dai

Recognition of Handwritten Mathematical Expressions (HMEs) is a challenging problem because of the ambiguity and complexity of two-dimensional handwriting. Moreover, the lack of large training data is a serious issue, especially for…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Anh Duc Le , Bipin Indurkhya , Masaki Nakagawa

Dynamic Facial Expression Recognition (DFER) plays a critical role in affective computing and human-computer interaction. Although existing methods achieve comparable performance, they inevitably suffer from performance degradation under…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Feng-Qi Cui , Anyang Tong , Jinyang Huang , Jie Zhang , Dan Guo , Zhi Liu , Meng Wang

Recent years have witnessed a trend of the deep integration of the generation and reconstruction paradigms. In this paper, we extend the ability of controllable generative models for a more comprehensive hand mesh recovery task: direct hand…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Mengcheng Li , Hongwen Zhang , Yuxiang Zhang , Ruizhi Shao , Tao Yu , Yebin Liu

Denoising diffusion probabilistic models for image inpainting aim to add the noise to the texture of image during the forward process and recover masked regions with unmasked ones of the texture via the reverse denoising process. Despite…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Haipeng Liu , Yang Wang , Biao Qian , Meng Wang , Yong Rui

Masked diffusion models (MDM) are powerful generative models for discrete data that generate samples by progressively unmasking tokens in a sequence. Each token can take one of two states: masked or unmasked. We observe that token sequences…

Machine Learning · Computer Science 2025-10-23 Chen-Hao Chao , Wei-Fang Sun , Hanwen Liang , Chun-Yi Lee , Rahul G. Krishnan

Part of the success of diffusion models stems from their ability to perform iterative refinement, i.e., repeatedly correcting outputs during generation. However, modern masked discrete diffusion lacks this capability: when a token is…

Machine Learning · Computer Science 2026-02-10 Guanghan Wang , Yair Schiff , Subham Sekhar Sahoo , Volodymyr Kuleshov

This paper introduces a discrete diffusion model (DDM) framework for text-aligned speech tokenization and reconstruction. By replacing the auto-regressive speech decoder with a discrete diffusion counterpart, our model achieves…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-25 Pin-Jui Ku , He Huang , Jean-Marie Lemercier , Subham Sekhar Sahoo , Zhehuai Chen , Ante Jukić

Recent advancements in multi-modal large language models have propelled the development of joint probabilistic models capable of both image understanding and generation. However, we have identified that recent methods suffer from loss of…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Jian Yang , Dacheng Yin , Yizhou Zhou , Fengyun Rao , Wei Zhai , Yang Cao , Zheng-Jun Zha

Discrete diffusion models generate sequences by iteratively denoising samples corrupted by categorical noise, offering an appealing alternative to autoregressive decoding for structured and symbolic generation. However, standard training…

Machine Learning · Computer Science 2026-02-04 Huu Binh Ta , Michael Cardei , Alvaro Velasquez , Ferdinando Fioretto

The Transformer-based encoder-decoder architecture has recently made significant advances in recognizing handwritten mathematical expressions. However, the transformer model still suffers from the lack of coverage problem, making its…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Wenqi Zhao , Liangcai Gao

Discrete diffusion has recently emerged as a promising paradigm in discrete data modeling. However, existing methods typically rely on a fixed rate transition matrix during training, which not only limits the expressiveness of latent…

Machine Learning · Computer Science 2025-05-27 Hengli Li , Yuxuan Wang , Song-Chun Zhu , Ying Nian Wu , Zilong Zheng

We propose DiMeR, a novel geometry-texture disentangled feed-forward model with 3D supervision for sparse-view mesh reconstruction. Existing methods confront two persistent obstacles: (i) textures can conceal geometric errors, i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Lutao Jiang , Jiantao Lin , Kanghao Chen , Wenhang Ge , Xin Yang , Yifan Jiang , Yuanhuiyi Lyu , Xu Zheng , Yinchuan Li , Yingcong Chen

Autoregressive (AR) transformers have emerged as a powerful paradigm for visual generation, largely due to their scalability, computational efficiency and unified architecture with language and vision. Among them, next scale prediction…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Amandeep Kumar , Nithin Gopalakrishnan Nair , Vishal M. Patel

Handwritten Mathematical Expression Recognition is foundational for educational technologies, enabling applications like digital note-taking and automated grading. While modern encoder-decoder architectures with large language models excel…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Jakob Seitz , Tobias Lengfeld , Radu Timofte

Diffusion models that are based on iterative denoising have been recently proposed and leveraged in various generation tasks like image generation. Whereas, as a way inherently built for continuous data, existing diffusion models still have…

Computation and Language · Computer Science 2023-04-11 Jiaao Chen , Aston Zhang , Mu Li , Alex Smola , Diyi Yang

Semantic segmentation is essential in computer vision for various applications, yet traditional approaches face significant challenges, including the high cost of annotation and extensive training for supervised learning. Additionally, due…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Yasufumi Kawano , Yoshimitsu Aoki

Diffusion models have demonstrated strong potential in language modeling, offering various advantages over traditional autoregressive approaches. Their ability to generate and revise entire responses in parallel enables faster generation…

Machine Learning · Computer Science 2026-03-03 Michael Hersche , Samuel Moor-Smith , Thomas Hofmann , Abbas Rahimi