no code implementations • CCL 2021 • Mingyue Zhou, Chen Gong, Zhenghua Li, Min Zhang
“数据标注最重要的考虑因素是数据的质量和标注代价。我们调研发现自然语言处理领域的数据标注工作通常采用机标人校的标注方法以降低代价;同时, 很少有工作严格对比不同标注方法, 以探讨标注方法对标注质量和代价的影响。该文借助一个成熟的标注团队, 以依存句法数据标注为案例, 实验对比了机标人校、双人独立标注、及本文通过融合前两种方法所新提出的人机独立标注方法, 得到了一些初步的结论。”
1 code implementation • 26 May 2023 • Yi Loo, Chen Gong, Malika Meghjani
A major challenge for deep reinforcement learning (DRL) agents is to collaborate with novel partners that were not encountered by them during the training phase.
no code implementations • 15 Apr 2023 • Tao Zhou, Yizhe Zhang, Yi Zhou, Ye Wu, Chen Gong
Recently, Meta AI Research releases a general Segment Anything Model (SAM), which has demonstrated promising performance in several segmentation tasks.
1 code implementation • 1 Apr 2023 • Hao Chen, Chen Gong, Yizhe WANG, Xinwen Hou
This paper proposes the Recovery Triggered States (RTS) method, a novel approach that effectively protects the victim agents from backdoor attacks.
1 code implementation • CVPR 2023 • Zhuo Huang, Miaoxi Zhu, Xiaobo Xia, Li Shen, Jun Yu, Chen Gong, Bo Han, Bo Du, Tongliang Liu
Experimentally, we simulate photon-limited corruptions using CIFAR10/100 and ImageNet30 datasets and show that SharpDRO exhibits a strong generalization ability against severe corruptions and exceeds well-known baseline methods with large performance gains.
no code implementations • 7 Feb 2023 • Chen Gong, Yue Chen, Yanan Sui, Luming Li
This sleep stage classification model could be adapted to chronic and continuous monitor sleep for Parkinson's patients in daily life, and potentially utilized for more precise treatment in deep brain-machine interfaces, such as closed-loop deep brain stimulation.
1 code implementation • 6 Jan 2023 • Chao Li, Chen Gong, Qiang He, Xinwen Hou, Yu Liu
To explicitly encourage exploration in continuous control tasks, we propose CCEP (Centralized Cooperative Exploration Policy), which utilizes underestimation and overestimation of value functions to maintain the capacity of exploration.
1 code implementation • 2 Dec 2022 • Tao Zhou, Yi Zhou, Chen Gong, Jian Yang, Yu Zhang
In this paper, we propose a novel Feature Aggregation and Propagation Network (FAP-Net) for camouflaged object detection.
no code implementations • 22 Nov 2022 • Siyu Xing, Chen Gong, Hewei Guo, Xiao-Yu Zhang, Xinwen Hou, Yu Liu
In this paper, we resolve this problem by introducing Unsupervised Domain Adaptation (UDA) into the Inversion process, namely UDA-Inversion, for both high-quality and low-quality image inversion and editing.
no code implementations • 31 Oct 2022 • Lei Zhang, Shilin Zhou, Chen Gong, Zhenghua Li, Zhefeng Wang, Baoxing Huai, Min Zhang
Chinese word segmentation (CWS) models have achieved very high performance when the training data is sufficient and in-domain.
1 code implementation • 27 Oct 2022 • Qizhou Wang, Feng Liu, Yonggang Zhang, Jing Zhang, Chen Gong, Tongliang Liu, Bo Han
Out-of-distribution (OOD) detection aims to identify OOD data based on representations extracted from well-trained deep models.
Out-of-Distribution Detection
Out of Distribution (OOD) Detection
no code implementations • 26 Oct 2022 • Dexin Kong, Nan Yu, Yun Yuan, Guohong Fu, Chen Gong
In this paper, we investigate the importance of discourse structures in handling utterance interactions and conversationspecific features for ECEC.
Ranked #5 on
Causal Emotion Entailment
on RECCON
1 code implementation • 17 Oct 2022 • Yizhen Zheng, Yu Zheng, Xiaofei Zhou, Chen Gong, Vincent CS Lee, Shirui Pan
To address aforementioned problems, we present a simple self-supervised learning method termed Unifying Graph Contrastive Learning with Flexible Contextual Scopes (UGCL for short).
1 code implementation • 7 Oct 2022 • Chen Gong, Zhou Yang, Yunpeng Bai, Junda He, Jieke Shi, Arunesh Sinha, Bowen Xu, Xinwen Hou, Guoliang Fan, David Lo
Our experiments conducted on four tasks and four offline RL algorithms expose a disquieting fact: none of the existing offline RL algorithms is immune to such a backdoor attack.
no code implementations • 1 Sep 2022 • Chen Gong, Zhenzhe Zheng, Yunfeng Shao, Bingshuai Li, Fan Wu, Guihai Chen
We first define a new data valuation metric for data evaluation and selection in FL with theoretical guarantees for speeding up model convergence and enhancing final model accuracy, simultaneously.
no code implementations • 2 Aug 2022 • Shihui Yu, Chen Gong, Zhengyuan Xu
Compared with equilong random sequence, the synchronization accuracy of the optimized synchronization sequence is significantly improved.
no code implementations • 7 Jul 2022 • Zhuo Huang, Xiaobo Xia, Li Shen, Bo Han, Mingming Gong, Chen Gong, Tongliang Liu
Machine learning models are vulnerable to Out-Of-Distribution (OOD) examples, and such a problem has drawn much attention.
no code implementations • 27 Jun 2022 • Chuang Zhang, Li Shen, Jian Yang, Chen Gong
To exploit this effect, the model prediction-based methods have been widely adopted, which aim to exploit the outputs of DNNs in the early stage of learning to correct noisy labels.
1 code implementation • 17 Jun 2022 • Chaojian Yu, Bo Han, Li Shen, Jun Yu, Chen Gong, Mingming Gong, Tongliang Liu
Here, we explore the causes of robust overfitting by comparing the data distribution of \emph{non-overfit} (weak adversary) and \emph{overfitted} (strong adversary) adversarial training, and observe that the distribution of the adversarial data generated by weak adversary mainly contain small-loss data.
1 code implementation • NAACL 2022 • Yahui Liu, Haoping Yang, Chen Gong, Qingrong Xia, Zhenghua Li, Min Zhang
1) Based on a frame-free annotation methodology, we avoid writing complex frames for new predicates.
no code implementations • 11 May 2022 • Wentao Yu, Sheng Wan, Guangyu Li, Jian Yang, Chen Gong
To enhance the feature representation ability, in this paper, a GCN model with contrastive learning is proposed to explore the supervision signals contained in both spectral information and spatial relations, which is termed Contrastive Graph Convolutional Network (ConGCN), for HSI classification.
no code implementations • 29 Apr 2022 • Jiaojiao Xu, Nuo Huang, Chen Gong
We consider 3-dimensional (3D) visible light positioning (VLP) based on smartphone camera in an indoor scenario.
no code implementations • 21 Mar 2022 • Yongliang Ding, Tao Zhou, Chuang Zhang, Yijing Luo, Juan Tang, Chen Gong
Further, by defining a new form of data centroid, we transform the recovery problem of a label-dependent part to a centroid estimation problem.
no code implementations • 2 Mar 2022 • Qingsong Zhao, Yi Wang, Shuguang Dou, Chen Gong, Yin Wang, Cairong Zhao
Regarding this hypothesis, we propose a novel regularization to improve discriminative learning.
no code implementations • 27 Feb 2022 • Chen Gong, Kong Bin, Eric J. Seibel, Xin Wang, Youbing Yin, Qi Song
Taking the expertise of DNNs to learn meaningful patterns before fitting noise, our framework first trains two networks over the current dataset with small loss selection.
no code implementations • 10 Feb 2022 • Tao Zhou, Huazhu Fu, Chen Gong, Ling Shao, Fatih Porikli, Haibin Ling, Jianbing Shen
Besides, a novel constraint based on the Hilbert Schmidt Independence Criterion (HSIC) is introduced to ensure the diversity of multi-level subspace representations, which enables the complementarity of multi-level representations to be explored to boost the transfer learning performance.
1 code implementation • 9 Dec 2021 • Yunpeng Bai, Chen Gong, Bin Zhang, Guoliang Fan, Xinwen Hou, Yu Liu
HGCN-MIX models agents as well as their relationships as a hypergraph, where agents are nodes and hyperedges among nodes indicate that the corresponding agents can coordinate to achieve larger rewards.
no code implementations • NeurIPS 2021 • Zhuo Huang, Chao Xue, Bo Han, Jian Yang, Chen Gong
Universal Semi-Supervised Learning (UniSSL) aims to solve the open-set problem where both the class distribution (i. e., class set) and feature distribution (i. e., feature domain) are different between labeled dataset and unlabeled dataset.
no code implementations • NeurIPS 2021 • Sheng Wan, Yibing Zhan, Liu Liu, Baosheng Yu, Shirui Pan, Chen Gong
Essentially, our CGPN can enhance the learning performance of GNNs under extremely limited labels by contrastively propagating the limited labels to the entire graph.
no code implementations • 12 Oct 2021 • Minnan Luo, Xiaojun Chang, Chen Gong
In this paper, we decompose the video into several segments and intuitively model the task of complex event detection as a multiple instance learning problem by representing each video as a "bag" of segments in which each segment is referred to as an instance.
no code implementations • 29 Sep 2021 • Xiaobo Xia, Bo Han, Yibing Zhan, Jun Yu, Mingming Gong, Chen Gong, Tongliang Liu
The sample selection approach is popular in learning with noisy labels, which tends to select potentially clean data out of noisy data for robust training.
no code implementations • 24 Sep 2021 • Chen Gong, Qiang He, Yunpeng Bai, Zhou Yang, Xiaoyu Chen, Xinwen Hou, Xianjie Zhang, Yu Liu, Guoliang Fan
In FRL, the policy evaluation and policy improvement phases are simultaneously performed by minimizing the $f$-divergence between the learning policy and sampling policy, which is distinct from conventional DRL algorithms that aim to maximize the expected cumulative rewards.
no code implementations • 22 Sep 2021 • Qiang He, Huangyuan Su, Chen Gong, Xinwen Hou
During the training of a reinforcement learning (RL) agent, the distribution of training data is non-stationary as the agent's behavior changes over time.
no code implementations • 22 Sep 2021 • Xiaoyu Chen, Chen Gong, Qiang He, Xinwen Hou, Yu Liu
Variational autoencoders (VAEs), as an important aspect of generative models, have received a lot of research interests and reached many successful applications.
1 code implementation • NeurIPS 2021 • Qizhou Wang, Feng Liu, Bo Han, Tongliang Liu, Chen Gong, Gang Niu, Mingyuan Zhou, Masashi Sugiyama
Reweighting adversarial data during training has been recently shown to improve adversarial robustness, where data closer to the current decision boundaries are regarded as more critical and given larger weights.
1 code implementation • 11 Jun 2021 • Chenhong Zhou, Feng Liu, Chen Gong, Rongfei Zeng, Tongliang Liu, William K. Cheung, Bo Han
However, in an open world, the unlabeled test images probably contain unknown categories and have different distributions from the labeled images.
1 code implementation • ACL 2021 • Chen Gong, Saihao Huang, Houquan Zhou, Zhenghua Li, Min Zhang, Zhefeng Wang, Baoxing Huai, Nicholas Jing Yuan
Several previous works on syntactic parsing propose to annotate shallow word-internal structures for better utilizing character-level information.
no code implementations • 31 May 2021 • Hao Fang, Chen Gong, Chen Zhang, Yanan Sui, Luming Li
Speech disorders often occur at the early stage of Parkinson's disease (PD).
1 code implementation • 12 May 2021 • Ming Jin, Yizhen Zheng, Yuan-Fang Li, Chen Gong, Chuan Zhou, Shirui Pan
To overcome this problem, inspired by the recent success of graph contrastive learning and Siamese networks in visual representation learning, we propose a novel self-supervised approach in this paper to learn node representations by enhancing Siamese self-distillation with multi-scale contrastive learning.
no code implementations • 17 Mar 2021 • Qizhou Wang, Jiangchao Yao, Chen Gong, Tongliang Liu, Mingming Gong, Hongxia Yang, Bo Han
Most of the previous approaches in this area focus on the pairwise relation (casual or correlational relationship) with noise, such as learning with noisy labels.
1 code implementation • 27 Feb 2021 • Yixin Liu, Zhao Li, Shirui Pan, Chen Gong, Chuan Zhou, George Karypis
Our framework fully exploits the local information from network data by sampling a novel type of contrastive instance pair, which can capture the relationship between each node and its neighboring substructure in an unsupervised way.
1 code implementation • 14 Jan 2021 • Qizhou Wang, Bo Han, Tongliang Liu, Gang Niu, Jian Yang, Chen Gong
The drastic increase of data quantity often brings the severe decrease of data quality, such as incorrect label annotations, which poses a great challenge for robustly training Deep Neural Networks (DNNs).
no code implementations • 10 Jan 2021 • Jiaqi Wei, Chen Gong, Nuo Huang, Zhengyuan Xu
In this way the light emitted by different LED can be separated well from each other then minimize signal interference.
no code implementations • ICLR 2021 • Xiaobo Xia, Tongliang Liu, Bo Han, Chen Gong, Nannan Wang, ZongYuan Ge, Yi Chang
The \textit{early stopping} method therefore can be exploited for learning with noisy labels.
Ranked #32 on
Image Classification
on mini WebVision 1.0
(ImageNet Top-1 Accuracy metric)
no code implementations • 14 Dec 2020 • Yuxuan Zhang, Chen Gong, Dawei Li, Zhi-Wei Wang, Shengda D Pu, Alex W Robertson, Hong Yu, John Parrington
A reasonable prediction of infectious diseases transmission process under different disease control strategies is an important reference point for policy makers.
no code implementations • COLING 2020 • Chen Gong, Zhenghua Li, Bowei Zou, Min Zhang
Detailed evaluation shows that our proposed model with weakly labeled data significantly outperforms the state-of-the-art MWS model by 1. 12 and 5. 97 on NEWS and BAIKE data in F1.
no code implementations • 27 Nov 2020 • Zhuo Huang, Ying Tai, Chengjie Wang, Jian Yang, Chen Gong
Semi-Supervised Learning (SSL) with mismatched classes deals with the problem that the classes-of-interests in the limited labeled data is only a subset of the classes in massive unlabeled data.
no code implementations • 17 Oct 2020 • Yunchao Wei, Shuai Zheng, Ming-Ming Cheng, Hang Zhao, LiWei Wang, Errui Ding, Yi Yang, Antonio Torralba, Ting Liu, Guolei Sun, Wenguan Wang, Luc van Gool, Wonho Bae, Junhyug Noh, Jinhwan Seo, Gunhee Kim, Hao Zhao, Ming Lu, Anbang Yao, Yiwen Guo, Yurong Chen, Li Zhang, Chuangchuang Tan, Tao Ruan, Guanghua Gu, Shikui Wei, Yao Zhao, Mariia Dobko, Ostap Viniavskyi, Oles Dobosevych, Zhendong Wang, Zhenyuan Chen, Chen Gong, Huanqing Yan, Jun He
The purpose of the Learning from Imperfect Data (LID) workshop is to inspire and facilitate the research in developing novel approaches that would harness the imperfect data and improve the data-efficiency during training.
no code implementations • 19 Sep 2020 • Sheng Wan, Chen Gong, Shirui Pan, Jie Yang, Jian Yang
Nowadays, deep learning methods, especially the Graph Convolutional Network (GCN), have shown impressive performance in hyperspectral image (HSI) classification.
no code implementations • 15 Sep 2020 • Sheng Wan, Shirui Pan, Jian Yang, Chen Gong
Graph-based Semi-Supervised Learning (SSL) aims to transfer the labels of a handful of labeled data to the remaining massive unlabeled data via a graph.
no code implementations • 25 Jun 2020 • Junyu Zhang, Chen Gong, Shangbin Li, Rui Ni, Chengjie Zuo, Jinkang Zhu, Ming Zhao, Zhengyuan Xu
Future wireless communication system embraces physical-layer signal detection with high sensitivity, especially in the microwave photon level.
no code implementations • 25 Jun 2020 • Junyu Zhang, Chen Gong, Shangbin Li, Shanchi Wu, Rui Ni, Chengjie Zuo, Jinkang Zhu, Ming Zhao, Zhengyuan Xu
Based on the state transition principles of the three-level system, we propose a statistical model for microwave signal detection.
1 code implementation • ICML 2020 • Xuxi Chen, Wuyang Chen, Tianlong Chen, Ye Yuan, Chen Gong, Kewei Chen, Zhangyang Wang
Many real-world applications have to tackle the Positive-Unlabeled (PU) learning problem, i. e., learning binary classifiers from a large amount of unlabeled data and a few labeled positive examples.
no code implementations • 29 Mar 2020 • Shanchi Wu, Chen Gong, Chengjie Zuo, Shangbin Li, Junyu Zhang, Zhongbin Dai, Kai Yang, Ming Zhao, Rui Ni, Zhengyuan Xu, Jinkang Zhu
We propose a novel radio-frequency (RF) receiving architecture based on micro-electro-mechanical system (MEMS) and optical coherent detection module.
no code implementations • 22 Feb 2020 • Yao Yao, Chen Gong, Jiehui Deng, Jian Yang
Partial Label Learning (PLL) aims to train a classifier when each training instance is associated with a set of candidate labels, among which only one is correct but is not accessible during the training phase.
1 code implementation • NeurIPS 2019 • Shuo Chen, Lei Luo, Jian Yang, Chen Gong, Jun Li, Heng Huang
To address this issue, we first reveal that the traditional linear distance metric is equivalent to the cumulative arc length between the data pair's nearest points on the learned straight measurer lines.
no code implementations • 26 Sep 2019 • Sheng Wan, Chen Gong, Ping Zhong, Shirui Pan, Guangyu Li, Jian Yang
In hyperspectral image (HSI) classification, spatial context has demonstrated its significance in achieving promising performance.
no code implementations • 19 Jul 2019 • Chen Gong, David S. Stoffer
The model is a nonlinear and non-Gaussian state space model, and consequently is difficult to fit.
Methodology Computation
1 code implementation • NeurIPS 2019 • Xiaobo Xia, Tongliang Liu, Nannan Wang, Bo Han, Chen Gong, Gang Niu, Masashi Sugiyama
Existing theories have shown that the transition matrix can be learned by exploiting \textit{anchor points} (i. e., data points that belong to a specific class almost surely).
Ranked #17 on
Learning with noisy labels
on CIFAR-10N-Random3
1 code implementation • 14 May 2019 • Sheng Wan, Chen Gong, Ping Zhong, Bo Du, Lefei Zhang, Jian Yang
To alleviate this shortcoming, we consider employing the recently proposed Graph Convolutional Network (GCN) for hyperspectral image classification, as it can conduct the convolution on arbitrarily structured non-Euclidean data and is applicable to the irregular image regions represented by graph topological information.
no code implementations • 15 Apr 2019 • Fanghui Liu, Chen Gong, Xiaolin Huang, Tao Zhou, Jie Yang, DaCheng Tao
In this paper, we propose a novel matching based tracker by investigating the relationship between template matching and the recent popular correlation filter based trackers (CFTs).
no code implementations • 8 Apr 2019 • Chen Gong, DaCheng Tao, Xiaojun Chang, Jian Yang
More importantly, HyDEnT conducts propagation under the guidance of an ensemble of teachers.
no code implementations • 5 Apr 2019 • Chen Gong, Tongliang Liu, Yuanyan Tang, Jian Yang, Jie Yang, DaCheng Tao
As a result, the intrinsic constraints among different candidate labels are deployed, and the disambiguated labels generated by RegISL are more discriminative and accurate than those output by existing instance-based algorithms.
no code implementations • 20 Feb 2019 • Chen Gong, Hengmin Zhang, Jian Yang, DaCheng Tao
To address label insufficiency, we use a graph to bridge the data points so that the label information can be propagated from the scarce labeled examples to unlabeled examples along the graph edges.
no code implementations • 2 Jan 2019 • Donna Xu, Yaxin Shi, Ivor W. Tsang, Yew-Soon Ong, Chen Gong, Xiaobo Shen
Multi-output learning aims to simultaneously predict multiple outputs given an input.
no code implementations • 28 Nov 2018 • Chen Gong, N. Benjamin Erichson, John P. Kelly, Laura Trutoiu, Brian T. Schowengerdt, Steven L. Brunton, Eric J. Seibel
To the best of our knowledge, this is the first template matching algorithm for retina images with small template images from unconstrained retinal areas.
no code implementations • 31 Aug 2018 • Fanghui Liu, Xiaolin Huang, Chen Gong, Jie Yang, Li Li
Learning this data-adaptive matrix in a formulation-free strategy enlarges the margin between classes and thus improves the model flexibility.
no code implementations • 9 Feb 2018 • Shuo Chen, Chen Gong, Jian Yang, Xiang Li, Yang Wei, Jun Li
In distinguishment stage, a metric is exhaustively learned to try its best to distinguish both the adversarial pairs and the original training pairs.
no code implementations • 6 Dec 2017 • Le Hui, Xiang Li, Jiaxin Chen, Hongliang He, Chen Gong, Jian Yang
Unsupervised Image-to-Image Translation achieves spectacularly advanced developments nowadays.
no code implementations • EMNLP 2017 • Chen Gong, Zhenghua Li, Min Zhang, Xinzhou Jiang
Traditionally, word segmentation (WS) adopts the single-grained formalism, where a sentence corresponds to a single word sequence.
no code implementations • 6 Jul 2017 • Fanghui Liu, Xiaolin Huang, Chen Gong, Jie Yang, Johan A. K. Suykens
Since the concave-convex procedure has to solve a sub-problem in each iteration, we propose a concave-inexact-convex procedure (CCICP) algorithm with an inexact solving scheme to accelerate the solving process.
no code implementations • CVPR 2015 • Chen Gong, DaCheng Tao, Wei Liu, Stephen J. Maybank, Meng Fang, Keren Fu, Jie Yang
In the teaching-to-learn step, a teacher is designed to arrange the regions from simple to difficult and then assign the simplest regions to the learner.