Search Results for author: Yunlu Xu

Found 17 papers, 8 papers with code

Few-Shot Class-Incremental Learning via Class-Aware Bilateral Distillation

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.

Few-Shot Class-Incremental Learning General Knowledge +3

HyperMatch: Noise-Tolerant Semi-Supervised Learning via Relaxed Contrastive Constraint

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.

Contrastive Learning

Distilling Object Detectors With Global Knowledge

1 code implementation17 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.

Knowledge Distillation Object +2

E2-AEN: End-to-End Incremental Learning with Adaptively Expandable Network

no code implementations14 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.

Incremental Learning

TRIE++: Towards End-to-End Information Extraction from Visually Rich Documents

no code implementations14 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.

Language Modelling

DavarOCR: A Toolbox for OCR and Multi-Modal Document Understanding

1 code implementation14 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.

document understanding Optical Character Recognition (OCR)

A Strong Baseline for Semi-Supervised Incremental Few-Shot Learning

no code implementations21 Oct 2021 Linlan 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.

Few-Shot Learning

Reciprocal Feature Learning via Explicit and Implicit Tasks in Scene Text Recognition

1 code implementation13 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.

Optical Character Recognition (OCR) Scene Text Recognition

MANGO: A Mask Attention Guided One-Stage Scene Text Spotter

1 code implementation8 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.

Position Text Spotting

TRIE: End-to-End Text Reading and Information Extraction for Document Understanding

1 code implementation27 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.

document understanding

Refined Gate: A Simple and Effective Gating Mechanism for Recurrent Units

no code implementations26 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).

Language Modelling Scene Text Recognition

Text Perceptron: Towards End-to-End Arbitrary-Shaped Text Spotting

1 code implementation17 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.

Text Detection Text Spotting

Adversarial Seeded Sequence Growing for Weakly-Supervised Temporal Action Localization

no code implementations7 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

Focusing Attention: Towards Accurate Text Recognition in Natural Images

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.

Scene Text Recognition

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