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Related papers: DeepSeek-OCR: Contexts Optical Compression

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Standard Large Language Models (LLMs) struggle with handling dialogues with long contexts due to efficiency and consistency issues. According to our observation, dialogue contexts are highly structured, and the special token of…

Computation and Language · Computer Science 2024-11-05 Jia-Nan Li , Quan Tu , Cunli Mao , Zhengtao Yu , Ji-Rong Wen , Rui Yan

The exponential expansion of context windows in LLMs has unlocked capabilities for long-document understanding but introduced severe bottlenecks in inference latency and information utilization. Existing compression methods often suffer…

Computation and Language · Computer Science 2026-03-23 Zhengpei Hu , Kai Li , Dapeng Fu , Chang Zeng , Yue Li , Yuanhao Tang , Jianqiang Huang

Image Compression for Machines (ICM) aims to compress images for machine vision tasks rather than human viewing. Current works predominantly concentrate on high-level tasks like object detection and semantic segmentation. However, the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Yuan Xue , Qi Zhang , Chuanmin Jia , Shiqi Wang

With the rapid development of OCR technology, mixed-scene text recognition has become a key technical challenge. Although deep learning models have achieved significant results in specific scenarios, their generality and stability still…

Computer Vision and Pattern Recognition · Computer Science 2025-05-12 Da Chang , Yu Li

Visual language models encounter challenges in computational efficiency and latency, primarily due to the substantial redundancy in the token representations of high-resolution images and videos. Current attention/similarity-based…

Computer Vision and Pattern Recognition · Computer Science 2025-12-11 Dehua Zheng , Mouxiao Huang , Borui Jiang , Hailin Hu , Xinghao Chen

Optical Character Recognition (OCR) in multilingual, noisy, and diverse real-world images remains a significant challenge for optical character recognition systems. With the rise of Large Vision-Language Models (LVLMs), there is growing…

Computation and Language · Computer Science 2025-09-05 Aryan Gupta , Anupam Purwar

Recent efforts to accelerate inference in Multimodal Large Language Models (MLLMs) have largely focused on visual token compression. The effectiveness of these methods is commonly evaluated by measuring the accuracy drop on existing MLLM…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Chenfei Liao , Wensong Wang , Zichen Wen , Xu Zheng , Yiyu Wang , Haocong He , Yuanhuiyi Lyu , Lutao Jiang , Xin Zou , Yuqian Fu , Bin Ren , Linfeng Zhang , Xuming Hu

Unified models aim to support both understanding and generation by encoding images into discrete tokens and processing them alongside text within a single autoregressive framework. This unified design offers architectural simplicity and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Ziyao Wang , Chen Chen , Jingtao Li , Weiming Zhuang , Jiabo Huang , Ang Li , Lingjuan Lyu

Transformer-based language models (LMs) are inefficient in long contexts. We propose Dodo, a solution for context compression. Instead of one vector per token in a standard transformer model, Dodo represents text with a dynamic number of…

Computation and Language · Computer Science 2024-12-10 Guanghui Qin , Corby Rosset , Ethan C. Chau , Nikhil Rao , Benjamin Van Durme

Large vision-language models (LVLMs) achieve strong multimodal understanding, but their inference cost grows rapidly with the number of visual tokens, especially for high-resolution images and long videos. Existing attention-based methods…

Computer Vision and Pattern Recognition · Computer Science 2026-05-18 Hongyu Lu , Feng Zhang , Wenwei Jin , Huanling Hu , Tianjun Shi , Shikai Jiang , Yao Hu , Jiawei Li

This paper presents an end-to-end deep convolutional recurrent neural network solution for Khmer optical character recognition (OCR) task. The proposed solution uses a sequence-to-sequence (Seq2Seq) architecture with attention mechanism.…

Computer Vision and Pattern Recognition · Computer Science 2021-06-22 Rina Buoy , Sokchea Kor , Nguonly Taing

The problem of high-dimensional and large-scale representation of visual data is addressed from an unsupervised learning perspective. The emphasis is put on discrete representations, where the description length can be measured in bits and…

Machine Learning · Computer Science 2019-01-25 Sohrab Ferdowsi

Commercial OCR packages work best with high-quality scanned images. They often produce poor results when the image is degraded, either because the original itself was poor quality, or because of excessive photocopying. The ability to…

Digital Libraries · Computer Science 2007-05-23 Roger T. Hartley , Kathleen Crumpton

Optical Character Recognition (OCR) plays a crucial role in digitizing historical and multilingual documents, yet OCR errors - imperfect extraction of text, including character insertion, deletion, and substitution can significantly impact…

Computation and Language · Computer Science 2025-09-22 Bhawna Piryani , Jamshid Mozafari , Abdelrahman Abdallah , Antoine Doucet , Adam Jatowt

Text is ubiquitous in our visual world, conveying crucial information, such as in documents, websites, and everyday photographs. In this work, we propose UReader, a first exploration of universal OCR-free visually-situated language…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Jiabo Ye , Anwen Hu , Haiyang Xu , Qinghao Ye , Ming Yan , Guohai Xu , Chenliang Li , Junfeng Tian , Qi Qian , Ji Zhang , Qin Jin , Liang He , Xin Alex Lin , Fei Huang

Large Language Models (LLMs) are increasingly prevalent in the field of long-context modeling, however, their inference computational costs have become a critical bottleneck hindering the advancement of tasks such as agents and multimodal…

Computation and Language · Computer Science 2025-12-04 Di Xiu , Hongyin Tang , Bolin Rong , Lizhi Yan , Jingang Wang , Yifan Lu , Xunliang Cai

While large language models (LLMs) excel in generating coherent and contextually rich outputs, their capacity to efficiently handle long-form contexts is limited by fixed-length position embeddings. Additionally, the computational cost of…

Computation and Language · Computer Science 2025-05-23 Sumin An , Junyoung Sung , Wonpyo Park , Chanjun Park , Paul Hongsuck Seo

Context compression is an advanced technique that accelerates large language model (LLM) inference by converting long inputs into compact representations. Existing methods primarily rely on autoencoding tasks to train special compression…

Computation and Language · Computer Science 2026-03-12 Xin Liu , Runsong Zhao , Pengcheng Huang , Xinyu Liu , Junyi Xiao , Chunyang Xiao , Tong Xiao , Shengxiang Gao , Zhengtao Yu , Jingbo Zhu

Despite recent progress, vision-language encoders struggle with two core limitations: (1) weak alignment between language and dense vision features, which hurts tasks like open-vocabulary semantic segmentation; and (2) high token counts for…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Savya Khosla , Sethuraman T , Aryan Chadha , Alex Schwing , Derek Hoiem

LLM-based Software Engineering agents face a critical bottleneck: context length limitations cause failures on complex, long-horizon tasks. One promising solution is to encode context as continuous embeddings rather than discrete tokens,…

Software Engineering · Computer Science 2026-05-13 Kirill Gelvan , Igor Slinko , Felix Steinbauer , Egor Bogomolov , Florian Kofler , Yaroslav Zharov