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The choice of modeling units is crucial for automatic speech recognition (ASR) tasks. In mandarin scenarios, the Chinese characters represent meaning but are not directly related to the pronunciation. Thus only considering the writing of…

Computation and Language · Computer Science 2022-10-19 Yuting Yang , Binbin Du , Yuke Li

Driven by deep learning and the large volume of data, scene text recognition has evolved rapidly in recent years. Formerly, RNN-attention based methods have dominated this field, but suffer from the problem of \textit{attention drift} in…

Computer Vision and Pattern Recognition · Computer Science 2020-01-03 Zhaoyi Wan , Minghang He , Haoran Chen , Xiang Bai , Cong Yao

Online and offline handwritten Chinese text recognition (HTCR) has been studied for decades. Early methods adopted oversegmentation-based strategies but suffered from low speed, insufficient accuracy, and high cost of character segmentation…

Computer Vision and Pattern Recognition · Computer Science 2022-08-01 Dezhi Peng , Lianwen Jin , Weihong Ma , Canyu Xie , Hesuo Zhang , Shenggao Zhu , Jing Li

Recently, many studies incorporate external knowledge into character-level feature based models to improve the performance of Chinese relation extraction. However, these methods tend to ignore the internal information of the Chinese…

Computation and Language · Computer Science 2023-03-10 Jing Yang , Bin Ji , Shasha Li , Jun Ma , Long Peng , Jie Yu

Chinese word segmentation is necessary to provide word-level information for Chinese named entity recognition (NER) systems. However, segmentation error propagation is a challenge for Chinese NER while processing colloquial data like social…

Computation and Language · Computer Science 2020-06-16 Shengbin Jia , Ling Ding , Xiaojun Chen , Shijia E , Yang Xiang

Recently, significant advancements have been made in diffusion-based visual text generation models. Although the effectiveness of these methods in visual text rendering is rapidly improving, they still encounter challenges such as…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 Lichen Ma , Tiezhu Yue , Pei Fu , Yujie Zhong , Kai Zhou , Xiaoming Wei , Jie Hu

Most Named Entity Recognition (NER) systems use additional features like part-of-speech (POS) tags, shallow parsing, gazetteers, etc. Such kind of information requires external knowledge like unlabeled texts and trained taggers. Adding…

Computation and Language · Computer Science 2020-02-13 Arijit Sehanobish , Chan Hee Song

Existing research generally treats Chinese character as a minimum unit for representation. However, such Chinese character representation will suffer two bottlenecks: 1) Learning bottleneck, the learning cannot benefit from its rich…

Computation and Language · Computer Science 2022-11-24 Zhijun Wang , Xuebo Liu , Min Zhang

Despite the recent remarkable improvements in scene text recognition (STR), the majority of the studies focused mainly on the English language, which only includes few number of characters. However, STR models show a large performance…

Computer Vision and Pattern Recognition · Computer Science 2023-04-19 Sunghyun Park , Sunghyo Chung , Jungsoo Lee , Jaegul Choo

Named Entity Recognition and Relation Extraction for Chinese literature text is regarded as the highly difficult problem, partially because of the lack of tagging sets. In this paper, we build a discourse-level dataset from hundreds of…

Computation and Language · Computer Science 2019-06-12 Jingjing Xu , Ji Wen , Xu Sun , Qi Su

Existing scene text recognition (STR) methods struggle to recognize challenging texts, especially for artistic and severely distorted characters. The limitation lies in the insufficient exploration of character morphologies, including the…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Yadong Qu , Yuxin Wang , Bangbang Zhou , Zixiao Wang , Hongtao Xie , Yongdong Zhang

Inspired by a concept of content-addressable retrieval from cognitive science, we propose a novel fragment-based model augmented with a lexicon-based memory for Chinese NER, in which both the character-level and word-level features are…

Computation and Language · Computer Science 2020-06-23 Yi Zhou , Xiaoqing Zheng , Xuanjing Huang

Localizing text in low-light environments is challenging due to visual degradations. Although a straightforward solution involves a two-stage pipeline with low-light image enhancement (LLE) as the initial step followed by detector, LLE is…

Computer Vision and Pattern Recognition · Computer Science 2024-04-25 Chengpei Xu , Hao Fu , Long Ma , Wenjing Jia , Chengqi Zhang , Feng Xia , Xiaoyu Ai , Binghao Li , Wenjie Zhang

Scene text detection methods based on neural networks have emerged recently and have shown promising results. Previous methods trained with rigid word-level bounding boxes exhibit limitations in representing the text region in an arbitrary…

Computer Vision and Pattern Recognition · Computer Science 2019-04-04 Youngmin Baek , Bado Lee , Dongyoon Han , Sangdoo Yun , Hwalsuk Lee

Characters have commonly been regarded as the minimal processing unit in Natural Language Processing (NLP). But many non-latin languages have hieroglyphic writing systems, involving a big alphabet with thousands or millions of characters.…

Computation and Language · Computer Science 2018-01-08 Han He , Lei Wu , Xiaokun Yang , Hua Yan , Zhimin Gao , Yi Feng , George Townsend

Word meaning, representation, and interpretation play fundamental roles in natural language understanding (NLU), natural language processing (NLP), and natural language generation (NLG) tasks. Many of the inherent difficulties in these…

Computation and Language · Computer Science 2025-12-18 Lifeng Han , Gareth J. F. Jones , Alan F. Smeaton

Scene text recognition (STR) is a challenging task that requires large-scale annotated data for training. However, collecting and labeling real text images is expensive and time-consuming, which limits the availability of real data.…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Mingkun Yang , Biao Yang , Minghui Liao , Yingying Zhu , Xiang Bai

Domain-specific Named Entity Recognition (NER), whose goal is to recognize domain-specific entities and their categories, provides an important support for constructing domain knowledge graphs. Currently, deep learning-based methods are…

Computation and Language · Computer Science 2024-09-17 Le Xiao , Yunfei Xu , Jing Zhao

Distributed word representations are very useful for capturing semantic information and have been successfully applied in a variety of NLP tasks, especially on English. In this work, we innovatively develop two component-enhanced Chinese…

Computation and Language · Computer Science 2015-08-28 Yanran Li , Wenjie Li , Fei Sun , Sujian Li

Scene text recognition (STR) is an important bridge between images and text, attracting abundant research attention. While convolutional neural networks (CNNS) have achieved remarkable progress in this task, most of the existing works need…

Computer Vision and Pattern Recognition · Computer Science 2021-11-17 Yue Tao , Zhiwei Jia , Runze Ma , Shugong Xu