no code implementations • COLING 2022 • Jun Zhao, Xin Zhao, WenYu Zhan, Tao Gui, Qi Zhang, Liang Qiao, Zhanzhan Cheng, ShiLiang Pu
To deal with this problem, this work proposes a cross-document semantic enhancement method, which consists of two modules: 1) To prevent distractions from irrelevant regions in the current document, we design a learnable attention mask mechanism, which is used to adaptively filter redundant information in the current document.
2 code implementations • ACL 2022 • Qin Liu, Rui Zheng, Bao Rong, Jingyi Liu, Zhihua Liu, Zhanzhan Cheng, Liang Qiao, Tao Gui, Qi Zhang, Xuanjing Huang
Adversarial robustness has attracted much attention recently, and the mainstream solution is adversarial training.
no code implementations • CVPR 2023 • Beitong Zhou, Jing Lu, Kerui Liu, Yunlu Xu, Zhanzhan Cheng, Yi Niu
Recent developments of the application of Contrastive Learning in Semi-Supervised Learning (SSL) have demonstrated significant advancements, as a result of its exceptional ability to learn class-aware cluster representations and the full exploitation of massive unlabeled data.
1 code implementation • CVPR 2023 • Linglan Zhao, Jing Lu, Yunlu Xu, Zhanzhan Cheng, Dashan Guo, Yi Niu, Xiangzhong Fang
While knowledge distillation, a prevailing technique in CIL, can alleviate the catastrophic forgetting of older classes by regularizing outputs between current and previous model, it fails to consider the overfitting risk of novel classes in FSCIL.
class-incremental learning
Few-Shot Class-Incremental Learning
+4
1 code implementation • 17 Oct 2022 • Sanli Tang, Zhongyu Zhang, Zhanzhan Cheng, Jing Lu, Yunlu Xu, Yi Niu, Fan He
Then, a robust distilling module (RDM) is applied to construct the global knowledge based on the prototypes and filtrate noisy global and local knowledge by measuring the discrepancy of the representations in two feature spaces.
1 code implementation • 14 Jul 2022 • Ying Chen, Liang Qiao, Zhanzhan Cheng, ShiLiang Pu, Yi Niu, Xi Li
In this paper, to address this problem, we propose a novel cost-efficient Dynamic Low-resolution Distillation (DLD) text spotting framework, which aims to infer images in different small but recognizable resolutions and achieve a better balance between accuracy and efficiency.
1 code implementation • 14 Jul 2022 • Liang Qiao, Hui Jiang, Ying Chen, Can Li, Pengfei Li, Zaisheng Li, Baorui Zou, Dashan Guo, Yingda Xu, Yunlu Xu, Zhanzhan Cheng, Yi Niu
Compared with the previous opensource OCR toolbox, DavarOCR has relatively more complete support for the sub-tasks of the cutting-edge technology of document understanding.
no code implementations • 14 Jul 2022 • Zhanzhan Cheng, Peng Zhang, Can Li, Qiao Liang, Yunlu Xu, Pengfei Li, ShiLiang Pu, Yi Niu, Fei Wu
Most existing methods divide this task into two subparts: the text reading part for obtaining the plain text from the original document images and the information extraction part for extracting key contents.
no code implementations • 14 Jul 2022 • Guimei Cao, Zhanzhan Cheng, Yunlu Xu, Duo Li, ShiLiang Pu, Yi Niu, Fei Wu
In this paper, we propose an end-to-end trainable adaptively expandable network named E2-AEN, which dynamically generates lightweight structures for new tasks without any accuracy drop in previous tasks.
2 code implementations • ACL 2022 • Xiao Wang, Shihan Dou, Limao Xiong, Yicheng Zou, Qi Zhang, Tao Gui, Liang Qiao, Zhanzhan Cheng, Xuanjing Huang
NER model has achieved promising performance on standard NER benchmarks.
Ranked #10 on
Named Entity Recognition (NER)
on WNUT 2017
no code implementations • 16 Mar 2022 • Jing Lu, Yunxu Xu, Hao Li, Zhanzhan Cheng, Yi Niu
Accordingly, the embedding space can be better optimized to discriminate therein the predefined classes and between known and unknowns.
no code implementations • 13 Jan 2022 • Duo Li, Guimei Cao, Yunlu Xu, Zhanzhan Cheng, Yi Niu
In the SSLAD-Track 3B challenge on continual learning, we propose the method of COntinual Learning with Transformer (COLT).
no code implementations • NeurIPS 2021 • Zhi Zhou, Lan-Zhe Guo, Zhanzhan Cheng, Yu-Feng Li, ShiLiang Pu
However, in many real-world applications, it is desirable to have SSL algorithms that not only classify the samples drawn from the same distribution of labeled data but also detect out-of-distribution (OOD) samples drawn from an unknown distribution.
Out-of-Distribution Detection
Out of Distribution (OOD) Detection
no code implementations • 21 Oct 2021 • Linglan Zhao, Dashan Guo, Yunlu Xu, Liang Qiao, Zhanzhan Cheng, ShiLiang Pu, Yi Niu, Xiangzhong Fang
Few-shot learning (FSL) aims to learn models that generalize to novel classes with limited training samples.
no code implementations • 26 Jul 2021 • Zhanzhan Cheng, Jing Lu, Baorui Zou, Shuigeng Zhou, Fei Wu
During the competition period (opened on 1st March, 2021 and closed on 11th April, 2021), a total of 24 teams participated in the three proposed tasks with 46 valid submissions, respectively.
2 code implementations • 13 May 2021 • Liang Qiao, Zaisheng Li, Zhanzhan Cheng, Peng Zhang, ShiLiang Pu, Yi Niu, Wenqi Ren, Wenming Tan, Fei Wu
In this paper, we aim to obtain more reliable aligned bounding boxes by fully utilizing the visual information from both text regions in proposed local features and cell relations in global features.
Ranked #8 on
Table Recognition
on PubTabNet
1 code implementation • 13 May 2021 • Hui Jiang, Yunlu Xu, Zhanzhan Cheng, ShiLiang Pu, Yi Niu, Wenqi Ren, Fei Wu, Wenming Tan
In this work, we excavate the implicit task, character counting within the traditional text recognition, without additional labor annotation cost.
1 code implementation • 13 May 2021 • Peng Zhang, Can Li, Liang Qiao, Zhanzhan Cheng, ShiLiang Pu, Yi Niu, Fei Wu
To address the above limitations, we propose a unified framework VSR for document layout analysis, combining vision, semantics and relations.
Ranked #3 on
Document Layout Analysis
on PubLayNet val
no code implementations • 1 Jan 2021 • Duo Li, Sanli Tang, Zhanzhan Cheng, ShiLiang Pu, Yi Niu, Wenming Tan, Fei Wu, Xiaokang Yang
However, the impact of the pseudo-labeled samples' quality as well as the mining strategies for high quality training sample have rarely been studied in SSL.
1 code implementation • 8 Dec 2020 • Liang Qiao, Ying Chen, Zhanzhan Cheng, Yunlu Xu, Yi Niu, ShiLiang Pu, Fei Wu
Recently end-to-end scene text spotting has become a popular research topic due to its advantages of global optimization and high maintainability in real applications.
Ranked #6 on
Text Spotting
on SCUT-CTW1500
no code implementations • 6 Jul 2020 • Sanli Tang, Zhanzhan Cheng, ShiLiang Pu, Dashan Guo, Yi Niu, Fei Wu
To tackle this issue, we develop a fine-grained domain alignment approach with a well-designed domain classifier bank that achieves the instance-level alignment respecting to their categories.
no code implementations • 22 Jun 2020 • Jinghuang Lin, Zhanzhan Cheng, Fan Bai, Yi Niu, ShiLiang Pu, Shuigeng Zhou
Scene text recognition (STR) is still a hot research topic in computer vision field due to its various applications.
no code implementations • 27 May 2020 • Jing Lu, Baorui Zou, Zhanzhan Cheng, ShiLiang Pu, Shuigeng Zhou, Yi Niu, Fei Wu
In this paper, we define the problem of object quality assessment for the first time and propose an effective approach named Object-QA to assess high-reliable quality scores for object images.
1 code implementation • 27 May 2020 • Peng Zhang, Yunlu Xu, Zhanzhan Cheng, ShiLiang Pu, Jing Lu, Liang Qiao, Yi Niu, Fei Wu
Since real-world ubiquitous documents (e. g., invoices, tickets, resumes and leaflets) contain rich information, automatic document image understanding has become a hot topic.
3 code implementations • 27 May 2020 • Chengwei Zhang, Yunlu Xu, Zhanzhan Cheng, ShiLiang Pu, Yi Niu, Fei Wu, Futai Zou
Arbitrary text appearance poses a great challenge in scene text recognition tasks.
no code implementations • 26 Feb 2020 • Zhanzhan Cheng, Yunlu Xu, Mingjian Cheng, Yu Qiao, ShiLiang Pu, Yi Niu, Fei Wu
Recurrent neural network (RNN) has been widely studied in sequence learning tasks, while the mainstream models (e. g., LSTM and GRU) rely on the gating mechanism (in control of how information flows between hidden states).
1 code implementation • 17 Feb 2020 • Liang Qiao, Sanli Tang, Zhanzhan Cheng, Yunlu Xu, Yi Niu, ShiLiang Pu, Fei Wu
Many approaches have recently been proposed to detect irregular scene text and achieved promising results.
Ranked #8 on
Text Spotting
on SCUT-CTW1500
no code implementations • 7 Aug 2019 • Chengwei Zhang, Yunlu Xu, Zhanzhan Cheng, Yi Niu, ShiLiang Pu, Fei Wu, Futai Zou
The second module is a specific classifier for mining trivial or incomplete action regions, which is trained on the shared features after erasing the seeded regions activated by SSG.
Action Detection
Weakly-supervised Temporal Action Localization
+1
no code implementations • 6 Aug 2019 • Peng Zhang, Xinyu Zhu, Zhanzhan Cheng, Shuigeng Zhou, Yi Niu
Fine-grained image recognition has been a hot research topic in computer vision due to its various applications.
1 code implementation • 8 Mar 2019 • Zhanzhan Cheng, Jing Lu, Yi Niu, ShiLiang Pu, Fei Wu, Shuigeng Zhou
Video text spotting is still an important research topic due to its various real-applications.
no code implementations • 19 Nov 2018 • Yunlu Xu, Chengwei Zhang, Zhanzhan Cheng, Jianwen Xie, Yi Niu, ShiLiang Pu, Fei Wu
Finally, we transform the output of recurrent neural network into the corresponding action distribution.
no code implementations • CVPR 2018 • Fan Bai, Zhanzhan Cheng, Yi Niu, ShiLiang Pu, Shuigeng Zhou
The advantage lies in that the training process can focus on the missing, superfluous and unrecognized characters, and thus the impact of the misalignment problem can be alleviated or even overcome.
1 code implementation • CVPR 2018 • Zhanzhan Cheng, Yangliu Xu, Fan Bai, Yi Niu, ShiLiang Pu, Shuigeng Zhou
Existing methods on text recognition mainly work with regular (horizontal and frontal) texts and cannot be trivially generalized to handle irregular texts.
Ranked #9 on
Scene Text Recognition
on ICDAR 2003
no code implementations • ICCV 2017 • Zhanzhan Cheng, Fan Bai, Yunlu Xu, Gang Zheng, ShiLiang Pu, Shuigeng Zhou
FAN consists of two major components: an attention network (AN) that is responsible for recognizing character targets as in the existing methods, and a focusing network (FN) that is responsible for adjusting attention by evaluating whether AN pays attention properly on the target areas in the images.