4 code implementations • 17 Apr 2023 • Yian Zhao, Wenyu Lv, Shangliang Xu, Jinman Wei, Guanzhong Wang, Qingqing Dang, Yi Liu, Jie Chen
Our RT-DETR-R50 / R101 achieves 53. 1% / 54. 3% AP on COCO and 108 / 74 FPS on T4 GPU, outperforming previously advanced YOLOs in both speed and accuracy.
Ranked #5 on Real-Time Object Detection on MS COCO
8 code implementations • 26 Feb 2019 • Aldo Pareja, Giacomo Domeniconi, Jie Chen, Tengfei Ma, Toyotaro Suzumura, Hiroki Kanezashi, Tim Kaler, Tao B. Schardl, Charles E. Leiserson
Existing approaches typically resort to node embeddings and use a recurrent neural network (RNN, broadly speaking) to regulate the embeddings and learn the temporal dynamics.
Ranked #4 on Dynamic Link Prediction on DBLP Temporal
1 code implementation • 11 Mar 2024 • Pengchong Qiao, Lei Shang, Chang Liu, Baigui Sun, Xiangyang Ji, Jie Chen
In this paper, motivated by object-oriented programming, we model the subject as a derived class whose base class is its semantic category.
1 code implementation • 25 May 2021 • Ruchir Puri, David S. Kung, Geert Janssen, Wei zhang, Giacomo Domeniconi, Vladimir Zolotov, Julian Dolby, Jie Chen, Mihir Choudhury, Lindsey Decker, Veronika Thost, Luca Buratti, Saurabh Pujar, Shyam Ramji, Ulrich Finkler, Susan Malaika, Frederick Reiss
In addition to its large scale, CodeNet has a rich set of high-quality annotations to benchmark and help accelerate research in AI techniques for a variety of critical coding tasks, including code similarity and classification, code translation between a large variety of programming languages, and code performance (runtime and memory) improvement techniques.
4 code implementations • ICLR 2022 • Enyan Dai, Jie Chen
Anomaly detection is a widely studied task for a broad variety of data types; among them, multiple time series appear frequently in applications, including for example, power grids and traffic networks.
Ranked #3 on Anomaly Detection on voraus-AD
1 code implementation • 16 Sep 2020 • Xuehui Yu, Zhenjun Han, Yuqi Gong, Nan Jiang, Jian Zhao, Qixiang Ye, Jie Chen, Yuan Feng, Bin Zhang, Xiaodi Wang, Ying Xin, Jingwei Liu, Mingyuan Mao, Sheng Xu, Baochang Zhang, Shumin Han, Cheng Gao, Wei Tang, Lizuo Jin, Mingbo Hong, Yuchao Yang, Shuiwang Li, Huan Luo, Qijun Zhao, Humphrey Shi
The 1st Tiny Object Detection (TOD) Challenge aims to encourage research in developing novel and accurate methods for tiny object detection in images which have wide views, with a current focus on tiny person detection.
9 code implementations • 12 Feb 2018 • Haowen Xu, Wenxiao Chen, Nengwen Zhao, Zeyan Li, Jiahao Bu, Zhihan Li, Ying Liu, Youjian Zhao, Dan Pei, Yang Feng, Jie Chen, Zhaogang Wang, Honglin Qiao
To ensure undisrupted business, large Internet companies need to closely monitor various KPIs (e. g., Page Views, number of online users, and number of orders) of its Web applications, to accurately detect anomalies and trigger timely troubleshooting/mitigation.
3 code implementations • ICLR 2018 • Jie Chen, Tengfei Ma, Cao Xiao
The graph convolutional networks (GCN) recently proposed by Kipf and Welling are an effective graph model for semi-supervised learning.
Ranked #3 on Node Classification on Citeseer Full-supervised
5 code implementations • ICCV 2019 • Lun Huang, Wenmin Wang, Jie Chen, Xiao-Yong Wei
In this paper, we propose an Attention on Attention (AoA) module, which extends the conventional attention mechanisms to determine the relevance between attention results and queries.
3 code implementations • 22 Apr 2019 • Yue Yu, Jie Chen, Tian Gao, Mo Yu
Learning a faithful directed acyclic graph (DAG) from samples of a joint distribution is a challenging combinatorial problem, owing to the intractable search space superexponential in the number of graph nodes.
1 code implementation • 25 Jan 2021 • Yuanzhuo Li, Yunan Zheng, Jie Chen, Zhenyu Xu, Yiguang Liu
Among the major remaining challenges for single image super resolution (SISR) is the capacity to recover coherent images with global shapes and local details conforming to human vision system.
2 code implementations • 30 Nov 2018 • Mark Weber, Jie Chen, Toyotaro Suzumura, Aldo Pareja, Tengfei Ma, Hiroki Kanezashi, Tim Kaler, Charles E. Leiserson, Tao B. Schardl
Organized crime inflicts human suffering on a genocidal scale: the Mexican drug cartels have murdered 150, 000 people since 2006, upwards of 700, 000 people per year are "exported" in a human trafficking industry enslaving an estimated 40 million people.
1 code implementation • NeurIPS 2018 • Tengfei Ma, Jie Chen, Cao Xiao
We focus on the matrix representation of graphs and formulate penalty terms that regularize the output distribution of the decoder to encourage the satisfaction of validity constraints.
1 code implementation • ICLR 2021 • Chao Shang, Jie Chen, Jinbo Bi
Exploration of the correlation and causation among the variables in a multivariate time series shows promise in enhancing the performance of a time series model.
2 code implementations • 27 Dec 2019 • Huayan Guo, Ying-Chang Liang, Jie Chen, Erik G. Larsson
Our objective is to maximize the weighted sum-rate (WSR) of all users by joint designing the beamforming at the access point (AP) and the phase vector of the RIS elements, while both the perfect channel state information (CSI) setup and the imperfect CSI setup are investigated.
Signal Processing
2 code implementations • 20 May 2019 • Huayan Guo, Ying-Chang Liang, Jie Chen, Erik G. Larsson
In addition, we consider a practical IRS assumption, in which the passive elements can only shift the incident signal to discrete phase levels.
1 code implementation • 11 May 2023 • Zhen Ye, Wei Xue, Xu Tan, Jie Chen, Qifeng Liu, Yike Guo
In this paper, we propose a "Co"nsistency "Mo"del-based "Speech" synthesis method, CoMoSpeech, which achieve speech synthesis through a single diffusion sampling step while achieving high audio quality.
2 code implementations • 7 Mar 2020 • Jie Chen, Ziyang Yuan, Jian Peng, Li Chen, Haozhe Huang, Jiawei Zhu, Yu Liu, Haifeng Li
However, the available methods focus mainly on the difference information between multitemporal remote sensing images and lack robustness to pseudo-change information.
1 code implementation • ICLR 2021 • Veronika Thost, Jie Chen
Graph-structured data ubiquitously appears in science and engineering.
Ranked #8 on Graph Property Prediction on ogbg-code2
1 code implementation • ICCV 2023 • Pengxu Wei, Yujing Sun, Xingbei Guo, Chang Liu, Jie Chen, Xiangyang Ji, Liang Lin
Despite substantial advances, single-image super-resolution (SISR) is always in a dilemma to reconstruct high-quality images with limited information from one input image, especially in realistic scenarios.
4 code implementations • 21 Nov 2022 • Peng Jin, Jinfa Huang, Fenglin Liu, Xian Wu, Shen Ge, Guoli Song, David A. Clifton, Jie Chen
Most video-and-language representation learning approaches employ contrastive learning, e. g., CLIP, to project the video and text features into a common latent space according to the semantic similarities of text-video pairs.
Ranked #2 on Video Retrieval on LSMDC (text-to-video Mean Rank metric)
4 code implementations • ICCV 2023 • Peng Jin, Hao Li, Zesen Cheng, Kehan Li, Xiangyang Ji, Chang Liu, Li Yuan, Jie Chen
Existing text-video retrieval solutions are, in essence, discriminant models focused on maximizing the conditional likelihood, i. e., p(candidates|query).
Ranked #15 on Video Retrieval on MSVD
4 code implementations • CVPR 2023 • Peng Jin, Jinfa Huang, Pengfei Xiong, Shangxuan Tian, Chang Liu, Xiangyang Ji, Li Yuan, Jie Chen
Contrastive learning-based video-language representation learning approaches, e. g., CLIP, have achieved outstanding performance, which pursue semantic interaction upon pre-defined video-text pairs.
Ranked #8 on Video Question Answering on MSRVTT-QA
4 code implementations • 20 May 2023 • Peng Jin, Hao Li, Zesen Cheng, Jinfa Huang, Zhennan Wang, Li Yuan, Chang Liu, Jie Chen
In this paper, we propose the Disentangled Conceptualization and Set-to-set Alignment (DiCoSA) to simulate the conceptualizing and reasoning process of human beings.
1 code implementation • 23 Nov 2021 • Zhizhong Huang, Jie Chen, Junping Zhang, Hongming Shan
The strengths of ProPos are avoidable class collision issue, uniform representations, well-separated clusters, and within-cluster compactness.
Ranked #2 on Image Clustering on ImageNet-10
1 code implementation • ICLR 2022 • Minghao Guo, Veronika Thost, Beichen Li, Payel Das, Jie Chen, Wojciech Matusik
This is a non-trivial task for neural network-based generative models since the relevant chemical knowledge can only be extracted and generalized from the limited training data.
1 code implementation • CVPR 2023 • Xin Jin, Longhai Wu, Jie Chen, Youxin Chen, Jayoon Koo, Cheul-hee Hahm
Cast in a flexible pyramid framework, UPR-Net exploits lightweight recurrent modules for both bi-directional flow estimation and intermediate frame synthesis.
Ranked #2 on Video Frame Interpolation on MSU Video Frame Interpolation (PSNR metric)
1 code implementation • 11 Jun 2022 • Jie Chen, Min Zhao, Xiuheng Wang, Cédric Richard, Susanto Rahardja
Spectral unmixing is one of the most important quantitative analysis tasks in hyperspectral data processing.
1 code implementation • 20 Jul 2022 • Kehan Li, Runyi Yu, Zhennan Wang, Li Yuan, Guoli Song, Jie Chen
Therefore, our locality guidance approach is very simple and efficient, and can serve as a basic performance enhancement method for VTs on tiny datasets.
1 code implementation • CVPR 2017 • Wei Ke, Jie Chen, Jianbin Jiao, Guoying Zhao, Qixiang Ye
By stacking RUs in a deep-to-shallow manner, SRN exploits the 'flow' of errors among multiple scales to ease the problems of fitting complex outputs with limited layers, suppressing the complex backgrounds, and effectively matching object symmetry of different scales.
1 code implementation • 17 Jul 2018 • Wei Ke, Jie Chen, Jianbin Jiao, Guoying Zhao, Qixiang Ye
The end-to-end deep learning approach, referred to as a side-output residual network (SRN), leverages the output residual units (RUs) to fit the errors between the object ground-truth symmetry and the side-outputs of multiple stages.
1 code implementation • 9 May 2023 • Runqing Wang, Gang Wang, Jian Sun, Fang Deng, Jie Chen
The complex relationships between operations and machines are represented precisely and concisely, for which a dual-attention network (DAN) comprising several interconnected operation message attention blocks and machine message attention blocks is proposed.
1 code implementation • CVPR 2021 • Can Zhang, Meng Cao, Dongming Yang, Jie Chen, Yuexian Zou
In this paper, we argue that learning by comparing helps identify these hard snippets and we propose to utilize snippet Contrastive learning to Localize Actions, CoLA for short.
1 code implementation • CVPR 2021 • Qiong Wu, Pingyang Dai, Jie Chen, Chia-Wen Lin, Yongjian Wu, Feiyue Huang, Bineng Zhong, Rongrong Ji
In this paper, we propose a joint Modality and Pattern Alignment Network (MPANet) to discover cross-modality nuances in different patterns for visible-infrared person Re-ID, which introduces a modality alleviation module and a pattern alignment module to jointly extract discriminative features.
1 code implementation • 30 May 2017 • Haifeng Li, Xin Dou, Chao Tao, Zhixiang Hou, Jie Chen, Jian Peng, Min Deng, Ling Zhao
In this paper, we propose a remote sensing image classification benchmark (RSI-CB) based on massive, scalable, and diverse crowdsource data.
1 code implementation • 18 Jun 2020 • Zhiyu Zhu, Junhui Hou, Jie Chen, Huanqiang Zeng, Jiantao Zhou
Specifically, PZRes-Net learns a high resolution and \textit{zero-centric} residual image, which contains high-frequency spatial details of the scene across all spectral bands, from both inputs in a progressive fashion along the spectral dimension.
Hyperspectral Image Super-Resolution Hyperspectral Unmixing +1
1 code implementation • NeurIPS 2019 • Lun Huang, Wenmin Wang, Yaxian Xia, Jie Chen
In this paper, we propose a novel attention model, namely Adaptive Attention Time (AAT), to align the source and the target adaptively for image captioning.
1 code implementation • 9 Dec 2020 • Shanshan Wang, Cheng Li, Rongpin Wang, Zaiyi Liu, Meiyun Wang, Hongna Tan, Yaping Wu, Xinfeng Liu, Hui Sun, Rui Yang, Xin Liu, Jie Chen, Huihui Zhou, Ismail Ben Ayed, Hairong Zheng
Automatic medical image segmentation plays a critical role in scientific research and medical care.
1 code implementation • CVPR 2020 • Jing Jin, Junhui Hou, Jie Chen, Sam Kwong
Light field (LF) images acquired by hand-held devices usually suffer from low spatial resolution as the limited sampling resources have to be shared with the angular dimension.
2 code implementations • 1 Nov 2018 • Tengfei Ma, Patrick Ferber, Siyu Huo, Jie Chen, Michael Katz
Automated planning is one of the foundational areas of AI.
1 code implementation • 15 May 2019 • Patrick Ferber, Tengfei Ma, Siyu Huo, Jie Chen, Michael Katz
Benchmark data sets are an indispensable ingredient of the evaluation of graph-based machine learning methods.
Ranked #2 on Graph Classification on IPC-lifted
3 code implementations • ICCV 2021 • Zihan Xu, Mingbao Lin, Jianzhuang Liu, Jie Chen, Ling Shao, Yue Gao, Yonghong Tian, Rongrong Ji
We prove that reviving the "dead weights" by ReCU can result in a smaller quantization error.
1 code implementation • 24 Dec 2019 • Tengfei Ma, Jie Chen
Both the coarsening matrix and the transport cost matrix are parameterized, so that an optimal coarsening strategy can be learned and tailored for a given set of graphs.
1 code implementation • IEEE Transactions on Cybernetics 2020 • Xu Fang, Chen Wang, Lihua Xie, Jie Chen
When the faster evader is allowed to move freely without any constraint, the main issues are how to form an encirclement to trap the evader into the capture domain, how to balance between forming an encirclement and approaching the faster evader, and what conditions make the capture possible.
Systems and Control Systems and Control
1 code implementation • CVPR 2022 • Qinqin Zhou, Kekai Sheng, Xiawu Zheng, Ke Li, Xing Sun, Yonghong Tian, Jie Chen, Rongrong Ji
Recently, Vision Transformer (ViT) has achieved remarkable success in several computer vision tasks.
1 code implementation • NeurIPS 2021 • Tao Sheng, Jie Chen, Zhouhui Lian
For the task of end-to-end scene text recognition, our method outperforms Mask TextSpotter v3 by 1. 1% on Total-Text.
1 code implementation • 16 Aug 2022 • Jingru Zhu, Ya Guo, Geng Sun, Libo Yang, Min Deng, Jie Chen
This study proposes a novel unsupervised domain adaptation semantic segmentation network (MemoryAdaptNet) for the semantic segmentation of HRS imagery.
1 code implementation • 17 Jun 2022 • Xin Jin, Longhai Wu, Guotao Shen, Youxin Chen, Jie Chen, Jayoon Koo, Cheul-hee Hahm
We present a novel simple yet effective algorithm for motion-based video frame interpolation.
Ranked #3 on Video Frame Interpolation on MSU Video Frame Interpolation (LPIPS metric)
1 code implementation • 6 Jan 2024 • Junyi Li, Jie Chen, Ruiyang Ren, Xiaoxue Cheng, Wayne Xin Zhao, Jian-Yun Nie, Ji-Rong Wen
To tackle the LLM hallucination, three key questions should be well studied: how to detect hallucinations (detection), why do LLMs hallucinate (source), and what can be done to mitigate them (mitigation).
1 code implementation • 8 Apr 2021 • Zhiling Huang, Junwen Bu, Jie Chen
We firstly used Mask R-CNN to find the regions of different fashion items, and secondly used Neural Style Transfer to change the style of the selected fashion items.
1 code implementation • 31 Jul 2019 • Mark Weber, Giacomo Domeniconi, Jie Chen, Daniel Karl I. Weidele, Claudio Bellei, Tom Robinson, Charles E. Leiserson
We contribute the Elliptic Data Set, a time series graph of over 200K Bitcoin transactions (nodes), 234K directed payment flows (edges), and 166 node features, including ones based on non-public data; to our knowledge, this is the largest labelled transaction data set publicly available in any cryptocurrency.
1 code implementation • ICCV 2021 • Hongliang He, Zhongyi Huang, Yao Ding, Guoli Song, Lin Wang, Qian Ren, Pengxu Wei, Zhiqiang Gao, Jie Chen
Specifically, we define the centripetal direction feature as a class of adjacent directions pointing to the nuclear center to represent the spatial relationship between pixels within the nucleus.
2 code implementations • 24 Jun 2022 • Sirui Liu, Jun Zhang, Haotian Chu, Min Wang, Boxin Xue, Ningxi Ni, Jialiang Yu, Yuhao Xie, Zhenyu Chen, Mengyun Chen, YuAn Liu, Piya Patra, Fan Xu, Jie Chen, Zidong Wang, Lijiang Yang, Fan Yu, Lei Chen, Yi Qin Gao
We provide in addition the benchmark training procedure for SOTA protein structure prediction model on this dataset.
1 code implementation • 16 Oct 2021 • Tim Kaler, Nickolas Stathas, Anne Ouyang, Alexandros-Stavros Iliopoulos, Tao B. Schardl, Charles E. Leiserson, Jie Chen
Improving the training and inference performance of graph neural networks (GNNs) is faced with a challenge uncommon in general neural networks: creating mini-batches requires a lot of computation and data movement due to the exponential growth of multi-hop graph neighborhoods along network layers.
1 code implementation • 13 Nov 2023 • Zilu Tang, Mayank Agarwal, Alex Shypula, Bailin Wang, Derry Wijaya, Jie Chen, Yoon Kim
This work explores the use of self-generated natural language explanations as an intermediate step for code-to-code translation with language models.
1 code implementation • 19 Aug 2021 • Xiawu Zheng, Yuexiao Ma, Teng Xi, Gang Zhang, Errui Ding, Yuchao Li, Jie Chen, Yonghong Tian, Rongrong Ji
This practically limits the application of model compression when the model needs to be deployed on a wide range of devices.
1 code implementation • 4 Sep 2023 • Minghao Guo, Veronika Thost, Samuel W Song, Adithya Balachandran, Payel Das, Jie Chen, Wojciech Matusik
Still, these techniques are faced with a common challenge in practice: Labeled data are limited by the cost of manual extraction from literature and laborious experimentation.
1 code implementation • 27 Mar 2024 • Qiran Zou, Shangyuan Yuan, Shian Du, Yu Wang, Chang Liu, Yi Xu, Jie Chen, Xiangyang Ji
However, these methods encounter challenges such as the lack of coordination between different part motions and difficulties for networks to understand part concepts.
Ranked #8 on Motion Synthesis on HumanML3D
1 code implementation • CVPR 2023 • Yu Wang, Pengchong Qiao, Chang Liu, Guoli Song, Xiawu Zheng, Jie Chen
We argue that an overlooked problem of robust SSL is its corrupted information on semantic level, practically limiting the development of the field.
1 code implementation • 19 Jul 2022 • Ruiqi Zhang, Jie Chen
However, the learned canonical representation is static and the current design of the deformation fields is not able to represent large movements or detailed geometry changes.
1 code implementation • 12 Feb 2020 • Xiao Zang, Yi Xie, Jie Chen, Bo Yuan
Worse, the bad actors found for one graph model severely compromise other models as well.
1 code implementation • 24 Apr 2021 • Yuxin Zhang, Mingbao Lin, Chia-Wen Lin, Jie Chen, Feiyue Huang, Yongjian Wu, Yonghong Tian, Rongrong Ji
Specifically, to model the contribution of each channel to differentiating categories, we develop a class-wise mask for each channel, implemented in a dynamic training manner w. r. t.
1 code implementation • ECCV 2018 • Henry Wing Fung Yeung, Junhui Hou, Jie Chen, Yuk Ying Chung, Xiaoming Chen
Specifically, our end-to-end model first synthesizes a set of intermediate novel sub-aperture images (SAIs) by exploring the coarse characteristics of the sparsely-sampled LF input with spatial-angular alternating convolutions.
1 code implementation • 24 Jan 2022 • Xiuheng Wang, Jie Chen, Cédric Richard
To overcome inherent hardware limitations of hyperspectral imaging systems with respect to their spatial resolution, fusion-based hyperspectral image (HSI) super-resolution is attracting increasing attention.
1 code implementation • ICCV 2023 • Jie Chen, Hua Mao, Wai Lok Woo, Xi Peng
Then, a cluster-level CVCL strategy is presented to explore consistent semantic label information among the multiple views in the fine-tuning stage.
1 code implementation • 18 Jan 2024 • Zesen Cheng, Kehan Li, Hao Li, Peng Jin, Chang Liu, Xiawu Zheng, Rongrong Ji, Jie Chen
To mold instance queries to follow Brownian bridge and accomplish alignment with class texts, we design Bridge-Text Alignment (BTA) to learn discriminative bridge-level representations of instances via contrastive objectives.
1 code implementation • 31 Jul 2018 • Jie Chen, Ronny Luss
The theory assumes that one can easily compute an unbiased gradient estimator, which is usually the case due to the sample average nature of empirical risk minimization.
1 code implementation • 10 Dec 2022 • Runyi Yu, Zhennan Wang, Yinhuai Wang, Kehan Li, Yian Zhao, Jian Zhang, Guoli Song, Jie Chen
By analyzing the input and output of each encoder layer in VTs using reparameterization and visualization, we find that the default PE joining method (simply adding the PE and patch embedding together) operates the same affine transformation to token embedding and PE, which limits the expressiveness of PE and hence constrains the performance of VTs.
1 code implementation • ICCV 2023 • Runyi Yu, Zhennan Wang, Yinhuai Wang, Kehan Li, Chang Liu, Haoyi Duan, Xiangyang Ji, Jie Chen
A typical way to introduce position information is adding the absolute Position Embedding (PE) to patch embedding before entering VTs.
1 code implementation • 5 Nov 2023 • Bolin Chen, Jie Chen, Shiqi Wang, Yan Ye
Generative Face Video Coding (GFVC) techniques can exploit the compact representation of facial priors and the strong inference capability of deep generative models, achieving high-quality face video communication in ultra-low bandwidth scenarios.
1 code implementation • 7 Jul 2023 • Shuaikai Shi, Lijun Zhang, Jie Chen
Specifically, the DDPM-Fus contains the forward diffusion process which gradually adds Gaussian noise to the high spatial resolution HSI (HrHSI) and another reverse denoising process which learns to predict the desired HrHSI from its noisy version conditioning on the corresponding high spatial resolution MSI (HrMSI) and low spatial resolution HSI (LrHSI).
1 code implementation • 29 Aug 2018 • Jie Chen, Yu Zeng
This paper shows the inclusion of physics-motivated feature interaction in feature augmentation can further improve the capability of machine learning in rock facies classification.
1 code implementation • 9 Sep 2020 • Xiuheng Wang, Jie Chen, Qi Wei, Cédric Richard
Furthermore, the regularization parameter is simultaneously estimated to automatically adjust contribution of the physical model and {the} learned prior to reconstruct the final HR HSI.
1 code implementation • 19 Mar 2022 • Jie Chen, Shouzhen Chen, Junbin Gao, Zengfeng Huang, Junping Zhang, Jian Pu
Moreover, we propose a simple yet effective Conv-Agnostic GNN framework (CAGNNs) to enhance the performance of most GNNs on heterophily datasets by learning the neighbor effect for each node.
1 code implementation • 16 Nov 2017 • Jie Chen, Michael L. Stein
An essential ingredient of GRF is the covariance function that characterizes the joint Gaussian distribution of the field.
Methodology Numerical Analysis
1 code implementation • 15 Jul 2022 • Junkun Jiang, Jie Chen, Yike Guo
In order to demonstrate the proposed model's capability in dealing with severe data loss scenarios, we contribute a high-accuracy and challenging motion capture dataset of multi-person interactions with severe occlusion.
1 code implementation • 24 Aug 2022 • Xiuheng Wang, Ricardo Augusto Borsoi, Cédric Richard, Jie Chen
The fusion problem is stated as an optimization problem in the maximum a posteriori framework.
1 code implementation • 12 Feb 2023 • Zehao Niu, Mihai Anitescu, Jie Chen
Gaussian processes (GPs) are an attractive class of machine learning models because of their simplicity and flexibility as building blocks of more complex Bayesian models.
1 code implementation • 23 Nov 2016 • Gang Wang, Liang Zhang, Georgios B. Giannakis, Mehmet Akcakaya, Jie Chen
Upon formulating sparse PR as an amplitude-based nonconvex optimization task, SPARTA works iteratively in two stages: In stage one, the support of the underlying sparse signal is recovered using an analytically well-justified rule, and subsequently, a sparse orthogonality-promoting initialization is obtained via power iterations restricted on the support; and, in the second stage, the initialization is successively refined by means of hard thresholding based gradient-type iterations.
Information Theory Information Theory Optimization and Control
1 code implementation • 23 Jan 2021 • Yuliang Ji, Ru Huang, Jie Chen, Yuanzhe Xi
Deep generative models, since their inception, have become increasingly more capable of generating novel and perceptually realistic signals (e. g., images and sound waves).
1 code implementation • 28 Nov 2022 • Xiuheng Wang, Jie Chen, Cédric Richard
Deconvolution is a widely used strategy to mitigate the blurring and noisy degradation of hyperspectral images~(HSI) generated by the acquisition devices.
1 code implementation • 24 Dec 2020 • Min Zhao, Xiuheng Wang, Jie Chen, Wei Chen
Spectral unmixing is a widely used technique in hyperspectral image processing and analysis.
1 code implementation • CVPR 2023 • Jie Chen, Zilong Li, Yin Zhu, Junping Zhang, Jian Pu
We design a simple yet effective HopGNN framework that can easily utilize existing GNNs to achieve hop interaction.
1 code implementation • ICCV 2023 • Zilong Li, Chenglong Ma, Jie Chen, Junping Zhang, Hongming Shan
The reconstructed images, however, suffer from strong artifacts, greatly limiting their diagnostic value.
1 code implementation • 31 Aug 2019 • Jing Jin, Junhui Hou, Jie Chen, Huanqiang Zeng, Sam Kwong, Jingyi Yu
Specifically, the coarse sub-aperture image (SAI) synthesis module first explores the scene geometry from an unstructured sparsely-sampled LF and leverages it to independently synthesize novel SAIs, in which a confidence-based blending strategy is proposed to fuse the information from different input SAIs, giving an intermediate densely-sampled LF.
1 code implementation • ECCV 2020 • Mantang Guo, Junhui Hou, Jing Jin, Jie Chen, Lap-Pui Chau
Coded aperture is a promising approach for capturing the 4-D light field (LF), in which the 4-D data are compressively modulated into 2-D coded measurements that are further decoded by reconstruction algorithms.
Image and Video Processing
3 code implementations • International Symposium on Intelligence Computation and Applications 2020 • Jie Chen, Gang Liu, Xin Chen
The existing methods usually have some problems, among which significant problems mainly include: 1) the generated images have no obvious animated style textures; 2) the generated images lose the content of the original images; 3) the parameters of the network require the large memory capacity.
1 code implementation • 7 Oct 2022 • Yiming Liu, Mengxi Zhang, Weiqin Zhang, Bo Jiang, Bo Hou, Dan Liu, Jie Chen, Heqing Lian
To tackle this problem, we propose the Flexible Alignment Super-Resolution Network (FASR-Net) for multi-contrast MRI Super-Resolution.
2 code implementations • 4 May 2023 • Tim Kaler, Alexandros-Stavros Iliopoulos, Philip Murzynowski, Tao B. Schardl, Charles E. Leiserson, Jie Chen
To significantly reduce the communication volume without compromising prediction accuracy, we propose a policy for caching data associated with frequently accessed vertices in remote partitions.
1 code implementation • 23 Jul 2019 • Jing Jin, Junhui Hou, Jie Chen, Sam Kwong, Jingyi Yu
To the best of our knowledge, this is the first end-to-end deep learning method for reconstructing a high-resolution LF image with a hybrid input.
1 code implementation • 18 Oct 2022 • Jie Chen, Shouzhen Chen, Mingyuan Bai, Junbin Gao, Junping Zhang, Jian Pu
Then, we introduce a novel structure-mixing knowledge distillation strategy to enhance the learning ability of MLPs for structure information.
1 code implementation • 24 Nov 2018 • Yu Zeng, Kebei Jiang, Jie Chen
One of the most crucial tasks in seismic reflection imaging is to identify the salt bodies with high precision.
1 code implementation • 10 Mar 2020 • Justin S. Smith, Benjamin Nebgen, Nithin Mathew, Jie Chen, Nicholas Lubbers, Leonid Burakovsky, Sergei Tretiak, Hai Ah Nam, Timothy Germann, Saryu Fensin, Kipton Barros
The accuracy and robustness of an ML potential is primarily limited by the quality and diversity of the training dataset.
1 code implementation • 1 Feb 2022 • Jie Chen, Weiqi Liu, Jian Pu
Based on the homophily assumption, the current message passing always aggregates features of connected nodes, such as the graph Laplacian smoothing process.
1 code implementation • 26 May 2023 • Tianchun Wang, Farzaneh Mirzazadeh, Xiang Zhang, Jie Chen
Graph convolutional networks (GCNs) are \emph{discriminative models} that directly model the class posterior $p(y|\mathbf{x})$ for semi-supervised classification of graph data.
2 code implementations • 14 Sep 2018 • Lingfei Wu, Ian E. H. Yen, Jie Chen, Rui Yan
We thus propose the first analysis of RB from the perspective of optimization, which by interpreting RB as a Randomized Block Coordinate Descent in the infinite-dimensional space, gives a faster convergence rate compared to that of other random features.
1 code implementation • 2 Jun 2023 • Tengfei Ma, Trong Nghia Hoang, Jie Chen
Second, we need to learn a consensus graph that captures the high-order interactions between local feature spaces and how to combine them to achieve a better prediction.
1 code implementation • 18 Dec 2023 • Xingxing Yang, Jie Chen, Zaifeng Yang
Existing learning-based hyperspectral reconstruction methods show limitations in fully exploiting the information among the hyperspectral bands.
1 code implementation • 27 Dec 2023 • Hengrui Zhang, Jie Chen, James M. Rondinelli, Wei Chen
This complexity is particularly evident in molecular mixtures, a frequently explored space for materials such as battery electrolytes.
1 code implementation • 15 May 2018 • Delu Zeng, Yixuan He, Li Liu, Zhihong Chen, Jiabin Huang, Jie Chen, John Paisley
In this paper, we propose an end-to-end generic salient object segmentation model called Metric Expression Network (MEnet) to deal with saliency detection with the tolerance of distortion.
1 code implementation • 21 Dec 2021 • Jie Chen, Lifen Jiang, Chunmei Ma, Huazhi Sun
In this paper, we propose a Multi-Preferences Model (MPM) to eliminate the effects of unexpected behaviors.
1 code implementation • 16 May 2023 • Zhen Long, Ce Zhu, Jie Chen, Zihan Li, Yazhou Ren, Yipeng Liu
Benefiting from multiple interactions among orthogonal/semi-orthogonal (low-rank) factors, the low-rank MERA has a strong representation power to capture the complex inter/intra-view information in the self-representation tensor.
1 code implementation • 15 Jun 2023 • Yifan Chen, Rentian Yao, Yun Yang, Jie Chen
The study includes a set of experiments to support the theory and method, including approximating the GW distance, preserving the graph spectrum, classifying graphs using spectral information, and performing regression using graph convolutional networks.
1 code implementation • 21 Feb 2020 • Yangyang Xu, Colin Sutcher-Shepard, Yibo Xu, Jie Chen
The proposed method is tested on both convex and non-convex machine learning problems, and the numerical results demonstrate its clear advantages over the sync counterpart and the async-parallel nonadaptive SGM.
Optimization and Control Distributed, Parallel, and Cluster Computing Numerical Analysis Numerical Analysis 90C15, 65Y05, 68W15, 65K05
no code implementations • 5 Jun 2018 • Joel Vaughan, Agus Sudjianto, Erind Brahimi, Jie Chen, Vijayan N. Nair
In this paper, we present the Explainable Neural Network (xNN), a structured neural network designed especially to learn interpretable features.
no code implementations • 2 Jun 2018 • Linwei Hu, Jie Chen, Vijayan N. Nair, Agus Sudjianto
This is in contrast with the KLIME approach that is based on clustering the predictor space.
no code implementations • 31 May 2018 • Jie Chen, Junhui Hou, Lap-Pui Chau
Light field (LF) cameras provide perspective information of scenes by taking directional measurements of the focusing light rays.
no code implementations • 24 Apr 2018 • Jie Chen, Cheen-Hau Tan, Junhui Hou, Lap-Pui Chau, He Li
Extensive evaluations show that advantage of up to 5dB is achieved on the scene restoration PSNR over state-of-the-art methods, and the advantage is especially obvious with highly complex and dynamic scenes.
no code implementations • CVPR 2018 • Jie Chen, Cheen-Hau Tan, Junhui Hou, Lap-Pui Chau, He Li
Visual inspection shows that much cleaner rain removal is achieved especially for highly dynamic scenes with heavy and opaque rainfall from a fast moving camera.
no code implementations • 21 Oct 2017 • Sijia Liu, Jie Chen, Pin-Yu Chen, Alfred O. Hero
In this paper, we design and analyze a new zeroth-order online algorithm, namely, the zeroth-order online alternating direction method of multipliers (ZOO-ADMM), which enjoys dual advantages of being gradient-free operation and employing the ADMM to accommodate complex structured regularizers.
no code implementations • 13 Feb 2018 • Li Liu, Jie Chen, Guoying Zhao, Paul Fieguth, Xilin Chen, Matti Pietikäinen
Because extreme scale variations are not necessarily present in most standard texture databases, to support the proposed extreme-scale aspects of texture understanding we are developing a new dataset, the Extreme Scale Variation Textures (ESVaT), to test the performance of our framework.
no code implementations • 31 Jan 2018 • Li Liu, Jie Chen, Paul Fieguth, Guoying Zhao, Rama Chellappa, Matti Pietikainen
Texture is a fundamental characteristic of many types of images, and texture representation is one of the essential and challenging problems in computer vision and pattern recognition which has attracted extensive research attention.
no code implementations • 2 Aug 2016 • Jie Chen, Haim Avron, Vikas Sindhwani
We propose a novel class of kernels to alleviate the high computational cost of large-scale nonparametric learning with kernel methods.
no code implementations • 7 Aug 2017 • Jie Chen, Junhui Hou, Yun Ni, Lap-Pui Chau
Significant improvements have been made in terms of overall depth estimation error; however, current state-of-the-art methods still show limitations in handling intricate occluding structures and complex scenes with multiple occlusions.
no code implementations • 4 Aug 2017 • Jie Chen, Chao Yuan, Min Deng, Chao Tao, Jian Peng, Haifeng Li
Owing to its superiority in feature representation, DCNN has exhibited remarkable performance in scene recognition of high-resolution remote sensing (HRRS) images and classification of hyper-spectral remote sensing images.
no code implementations • 29 May 2017 • Gang Wang, Georgios B. Giannakis, Yousef Saad, Jie Chen
This paper deals with finding an $n$-dimensional solution $x$ to a system of quadratic equations of the form $y_i=|\langle{a}_i, x\rangle|^2$ for $1\le i \le m$, which is also known as phase retrieval and is NP-hard in general.
no code implementations • 19 May 2017 • Haifeng Li, Jian Peng, Chao Tao, Jie Chen, Min Deng
Is the DCNN recognition mechanism centered on object recognition still applicable to the scenarios of remote sensing scene understanding?
no code implementations • 7 Mar 2014 • Jie Chen, Hua Mao, Yongsheng Sang, Zhang Yi
In this paper, we propose a low-rank representation with symmetric constraint (LRRSC) method for robust subspace clustering.
no code implementations • 12 Oct 2016 • Jie Chen, Junhui Hou, Lap-Pui Chau
Recent imaging technologies are rapidly evolving for sampling richer and more immersive representations of the 3D world.
no code implementations • 28 Apr 2017 • Simone Scardapane, Jie Chen, Cédric Richard
In this chapter, we analyze nonlinear filtering problems in distributed environments, e. g., sensor networks or peer-to-peer protocols.
no code implementations • 13 Feb 2017 • Jie Chen, Cédric Richard, Ali H. Sayed
Online learning with streaming data in a distributed and collaborative manner can be useful in a wide range of applications.
no code implementations • CVPR 2017 • Qixiang Ye, Tianliang Zhang, Qiang Qiu, Baochang Zhang, Jie Chen, Guillermo Sapiro
In this paper, a self-learning approach is proposed towards solving scene-specific pedestrian detection problem without any human' annotation involved.
no code implementations • 29 Oct 2016 • Gang Wang, Georgios B. Giannakis, Jie Chen
A novel approach termed \emph{stochastic truncated amplitude flow} (STAF) is developed to reconstruct an unknown $n$-dimensional real-/complex-valued signal $\bm{x}$ from $m$ `phaseless' quadratic equations of the form $\psi_i=|\langle\bm{a}_i,\bm{x}\rangle|$.
no code implementations • 27 Oct 2016 • Jie Chen, Dehua Cheng, Yan Liu
A well-known construction of such functions comes from Bochner's characterization, which connects a positive-definite function with a probability distribution.
no code implementations • 4 Aug 2016 • Yingyue Xu, Xiaopeng Hong, Fatih Porikli, Xin Liu, Jie Chen, Guoying Zhao
Previous offline integration methods usually face two challenges: 1. if most of the candidate saliency models misjudge the saliency on an image, the integration result will lean heavily on those inferior candidate models; 2. an unawareness of the ground truth saliency labels brings difficulty in estimating the expertise of each candidate model.
no code implementations • 8 Sep 2015 • Xianbiao Qi, Guoying Zhao, Jie Chen, Matti Pietikäinen
We validate the GSS pre-processing under the Local Binary Pattern (LBP) and the Bag-of-Words (BoW) frameworks.
no code implementations • 24 Aug 2015 • Jingen Ni, Jian Yang, Jie Chen, Cédric Richard, José Carlos M. Bermudez
Some system identification problems impose nonnegativity constraints on the parameters to estimate due to inherent physical characteristics of the unknown system.
no code implementations • 31 Oct 2014 • Jie Chen, Haixian Zhang, Hua Mao, Yongsheng Sang, Zhang Yi
We propose a symmetric low-rank representation (SLRR) method for subspace clustering, which assumes that a data set is approximately drawn from the union of multiple subspaces.
no code implementations • 17 Nov 2014 • Kian Hsiang Low, Jiangbo Yu, Jie Chen, Patrick Jaillet
To improve its scalability, this paper presents a low-rank-cum-Markov approximation (LMA) of the GP model that is novel in leveraging the dual computational advantages stemming from complementing a low-rank approximate representation of the full-rank GP based on a support set of inputs with a Markov approximation of the resulting residual process; the latter approximation is guaranteed to be closest in the Kullback-Leibler distance criterion subject to some constraint and is considerably more refined than that of existing sparse GP models utilizing low-rank representations due to its more relaxed conditional independence assumption (especially with larger data).
no code implementations • 9 Aug 2014 • Jie Chen, Nannan Cao, Kian Hsiang Low, Ruofei Ouyang, Colin Keng-Yan Tan, Patrick Jaillet
We theoretically guarantee the predictive performances of our proposed parallel GPs to be equivalent to that of some centralized approximate GP regression methods: The computation of their centralized counterparts can be distributed among parallel machines, hence achieving greater time efficiency and scalability.
no code implementations • 9 Aug 2014 • Jie Chen, Kian Hsiang Low, Colin Keng-Yan Tan, Ali Oran, Patrick Jaillet, John Dolan, Gaurav Sukhatme
The problem of modeling and predicting spatiotemporal traffic phenomena over an urban road network is important to many traffic applications such as detecting and forecasting congestion hotspots.
no code implementations • 21 Apr 2014 • Nuo Xu, Kian Hsiang Low, Jie Chen, Keng Kiat Lim, Etkin Baris Ozgul
Central to robot exploration and mapping is the task of persistent localization in environmental fields characterized by spatially correlated measurements.
no code implementations • 24 Jan 2014 • Jie Chen, José Carlos M. Bermudez, Cédric Richard
The transient behavior of the NNLMS, Normalized NNLMS, Exponential NNLMS and Sign-Sign NNLMS algorithms have been studied in our previous work.
no code implementations • 31 Oct 2013 • Jie Chen, Wei Gao, Cédric Richard, Jose-Carlos M. Bermudez
In addition to choosing a reproducing kernel and setting filter parameters, designing a KLMS adaptive filter requires to select a so-called dictionary in order to get a finite-order model.
no code implementations • 31 Oct 2013 • Jie Chen, Cédric Richard, Alfred O. Hero III
Incorporating spatial information into hyperspectral unmixing procedures has been shown to have positive effects, due to the inherent spatial-spectral duality in hyperspectral scenes.
no code implementations • 22 Jun 2013 • Wei Gao, Jie Chen, Cédric Richard, Jianguo Huang
Unfortunately, an undesirable characteristic of these methods is that the order of the filters grows linearly with the number of input data.
no code implementations • 2 Jun 2013 • Jie Chen, Kian Hsiang Low, Colin Keng-Yan Tan
This paper presents a novel decentralized data fusion and active sensing algorithm for real-time, fine-grained mobility demand sensing and prediction with a fleet of autonomous robotic vehicles in a MoD system.
no code implementations • 24 May 2013 • Jie Chen, Nannan Cao, Kian Hsiang Low, Ruofei Ouyang, Colin Keng-Yan Tan, Patrick Jaillet
We theoretically guarantee the predictive performances of our proposed parallel GPs to be equivalent to that of some centralized approximate GP regression methods: The computation of their centralized counterparts can be distributed among parallel machines, hence achieving greater time efficiency and scalability.
no code implementations • 14 Aug 2018 • Gang Wang, Georgios B. Giannakis, Jie Chen
In this context, the problem of learning a two-layer ReLU network is approached in a binary classification setting, where the data are linearly separable and a hinge loss criterion is adopted.
no code implementations • 19 Aug 2018 • Jie Chen, Cheen-Hau Tan, Lap-Pui Chau
Vision based haze density estimation is of practical implications for the purpose of precaution alarm and emergency reactions toward disastrous hazy weathers.
no code implementations • 22 Aug 2018 • Xiaoyu Liu, Jie Chen, Joel Vaughan, Vijayan Nair, Agus Sudjianto
Interpreting a nonparametric regression model with many predictors is known to be a challenging problem.
no code implementations • 6 Sep 2018 • Li Liu, Wanli Ouyang, Xiaogang Wang, Paul Fieguth, Jie Chen, Xinwang Liu, Matti Pietikäinen
Object detection, one of the most fundamental and challenging problems in computer vision, seeks to locate object instances from a large number of predefined categories in natural images.
no code implementations • NeurIPS 2017 • Gang Wang, Georgios Giannakis, Yousef Saad, Jie Chen
For certain random measurement models, the proposed procedure returns the true solution $\bm{x}$ with high probability in time proportional to reading the data $\{(\bm{a}_i;y_i)\}_{1\le i \le m}$, provided that the number $m$ of equations is some constant $c>0$ times the number $n$ of unknowns, that is, $m\ge cn$.
no code implementations • CVPR 2014 • Xiaobai Li, Jie Chen, Guoying Zhao, Matti Pietikainen
Heart rate is an important indicator of people's physiological state.
no code implementations • 22 Feb 2019 • Min Zhao, Jie Chen, Zhe He
To the best of our knowledge, this dataset is the first publicly available dataset created in a systematic manner with ground-truth for spectral unmixing.
no code implementations • 7 Mar 2019 • Jie Chen, Lap-Pui Chau, Junhui Hou
A stratified synthesis strategy is adopted which parses the scene content based on stratified disparity layers and across a varying range of spatial granularities.
no code implementations • 12 Mar 2019 • Tian Gao, Jie Chen, Vijil Chenthamarakshan, Michael Witbrock
Though SSG is sequential in nature, it does not penalize the ordering of the appearance of the set elements and can be applied to a variety of set output problems, such as a set of classification labels or sequences.
no code implementations • 25 Apr 2019 • Rao Fu, Jie Chen, Shutian Zeng, Yiping Zhuang, Agus Sudjianto
Generative Adversarial Net (GAN) has been proven to be a powerful machine learning tool in image data analysis and generation.
no code implementations • 16 May 2019 • Jun Wang, Dan Su, Jie Chen, Shulin Feng, Dongpeng Ma, Na Li, Dong Yu
We propose a novel method which simultaneously models both the sequence discriminative training and the feature discriminative learning within a single network architecture, so that it can learn discriminative deep features in sequence training that obviates the need for presegmented training data.
no code implementations • 28 Oct 2019 • Zhao You, Dan Su, Jie Chen, Chao Weng, Dong Yu
Self-attention networks (SAN) have been introduced into automatic speech recognition (ASR) and achieved state-of-the-art performance owing to its superior ability in capturing long term dependency.
Automatic Speech Recognition Automatic Speech Recognition (ASR) +1
no code implementations • WS 2019 • Siyu Huo, Tengfei Ma, Jie Chen, Maria Chang, Lingfei Wu, Michael Witbrock
Semantic parsing is a fundamental problem in natural language understanding, as it involves the mapping of natural language to structured forms such as executable queries or logic-like knowledge representations.
no code implementations • 5 Dec 2019 • Tong Teng, Jie Chen, Yehong Zhang, Kian Hsiang Low
To achieve this, we represent the probabilistic kernel as an additional variational variable in a variational inference (VI) framework for SGPR models where its posterior belief is learned together with that of the other variational variables (i. e., inducing variables and kernel hyperparameters).
no code implementations • 16 Dec 2019 • Huy Phan, Yi Xie, Siyu Liao, Jie Chen, Bo Yuan
In addition, CAG exhibits high transferability across different DNN classifier models in black-box attack scenario by introducing random dropout in the process of generating perturbations.
no code implementations • 19 Dec 2019 • Dong Zhang, Shu Zhao, Zhen Duan, Jie Chen, Yangping Zhang, Jie Tang
Paper-reviewer recommendation task is of significant academic importance for conference chairs and journal editors.
no code implementations • 20 Dec 2019 • Stefan Schonsheck, Jie Chen, Rongjie Lai
CAE admits desirable manifold properties that auto-encoders with a flat latent space fail to obey, predominantly proximity of data.
no code implementations • 7 Jan 2020 • Roula Nassif, Stefan Vlaski, Cedric Richard, Jie Chen, Ali H. Sayed
Multitask learning is an approach to inductive transfer learning (using what is learned for one problem to assist in another problem) and helps improve generalization performance relative to learning each task separately by using the domain information contained in the training signals of related tasks as an inductive bias.
no code implementations • 11 Jan 2020 • Siyu Liao, Jie Chen, Yanzhi Wang, Qinru Qiu, Bo Yuan
Continuous representation of words is a standard component in deep learning-based NLP models.
no code implementations • 27 Jan 2020 • Jie Chen, Haozhe Huang, Jian Peng, Jiawei Zhu, Li Chen, Wenbo Li, Binyu Sun, Haifeng Li
The feature-learning procedure of CNN largely depends on the architecture of CNN.
no code implementations • CVPR 2020 • Jie Chen, Zhiheng Li, Jiebo Luo, Chenliang Xu
Instead of blindly trusting quality-inconsistent PAs, WS^2 employs a learning-based selection to select effective PAs and a novel region integrity criterion as a stopping condition for weakly-supervised training.
no code implementations • 5 Apr 2020 • Jie Chen, Joel Vaughan, Vijayan N. Nair, Agus Sudjianto
While machine learning techniques have been successfully applied in several fields, the black-box nature of the models presents challenges for interpreting and explaining the results.
no code implementations • CVPR 2020 • Yunpeng Zhai, Shijian Lu, Qixiang Ye, Xuebo Shan, Jie Chen, Rongrong Ji, Yonghong Tian
Domain adaptive person re-identification (re-ID) is a challenging task, especially when person identities in target domains are unknown.
Ranked #8 on Unsupervised Domain Adaptation on Duke to Market
no code implementations • 22 Apr 2020 • Jie Chen, Wenjun Xu
In this work, an integrated policy gradient algorithm was proposed to boost exploration and facilitate intrinsic reward learning from only limited number of demonstrations.
no code implementations • 27 Jul 2020 • Yanna Bai, Wei Chen, Jie Chen, Weisi Guo
The linear inverse problem is fundamental to the development of various scientific areas.
no code implementations • 28 Jul 2020 • Linwei Hu, Jie Chen, Vijayan N. Nair, Agus Sudjianto
Supervised Machine Learning (SML) algorithms, such as Gradient Boosting, Random Forest, and Neural Networks, have become popular in recent years due to their superior predictive performance over traditional statistical methods.
no code implementations • 28 Jul 2020 • Linwei Hu, Jie Chen, Joel Vaughan, Hanyu Yang, Kelly Wang, Agus Sudjianto, Vijayan N. Nair
This article provides an overview of Supervised Machine Learning (SML) with a focus on applications to banking.
no code implementations • 26 Sep 2020 • Jing Jin, Junhui Hou, Zhiyu Zhu, Jie Chen, Sam Kwong
To preserve the parallax structure among the reconstructed SAIs, we subsequently append a consistency regularization network trained over a structure-aware loss function to refine the parallax relationships over the coarse estimation.
no code implementations • 9 Oct 2020 • Min Zhao, Tiande Gao, Jie Chen, Wei Chen
In our work, we propose an NMF based unmixing framework which jointly uses a handcrafting regularizer and a learnt regularizer from data.
no code implementations • 9 Nov 2020 • Yu Chen, Jie Chen, Ganesh Krishnamurthi, Huijing Yang, Huahui Wang, Wenjie Zhao
Due to the high variability of the traffic in the radio access network (RAN), fixed network configurations are not flexible enough to achieve optimal performance.
no code implementations • NeurIPS 2020 • Jinlong Lei, Peng Yi, Yiguang Hong, Jie Chen, Guodong Shi
The regret bounds scaling with respect to $T$ match those obtained by state-of-the-art algorithms and fundamental limits in the corresponding centralized online optimization problems, e. g., $\mathcal{O}(\sqrt{T}) $ and $\mathcal{O}(\ln(T)) $ regrets are established for convex and strongly convex losses with full gradient feedback and two-points information, respectively.
no code implementations • 20 Nov 2020 • Tingting Zhang, Jie Chen, Caiying Wu, Zhifei He, Tieyong Zeng, Qiyu Jin
In the proposed model, it detects the edges and then spatially adjusts the parameters of Tikhonov and TV regularization terms for each pixel according to the edge information.
no code implementations • 25 Nov 2020 • Yongquan Yang, Yiming Yang, Jie Chen, Jiayi Zheng, Zhongxi Zheng
Learning from noisy labels is an important concern in plenty of real-world scenarios.
no code implementations • 30 Apr 2019 • Min Zhao, Mou Wang, Jie Chen, Susanto Rahardja
This paper presents an unsupervised nonlinear spectral unmixing method based on a deep autoencoder network that applies to a generalized linear-mixture/nonlinear fluctuation model, consisting of a linear mixture component and an additive nonlinear mixture component that depends on both endmembers and abundances.
no code implementations • 24 Jun 2020 • Ricardo Augusto Borsoi, Cédric Richard, André Ferrari, Jie Chen, José Carlos Moreira Bermudez
To effectively perform change-point detection in multitemporal images, it is important to devise techniques that are computationally efficient for processing large datasets, and that do not require knowledge about the nature of the changes.
no code implementations • 11 Nov 2020 • Bin Li, Zhikang Jiang, Jie Chen
The sFFT algorithms decrease the runtime and sampling complexity by taking advantage of the signal inherent characteristics that a large number of signals are sparse in the frequency domain(e. g., sensors, video data, audio, medical image, etc.).
no code implementations • 11 Nov 2020 • Bin Li, Zhikang Jiang, Jie Chen
In the second part, we make two categories of experiments for computing the signals of different SNR, different N, different K by a standard testing platform and record the run time, percentage of the signal sampled and L0, L1, L2 error both in the exactly sparse case and general sparse case.
no code implementations • 15 Dec 2020 • Bin Li, Zhikang Jiang, Jie Chen
Computing the Sparse Fast Fourier Transform(sFFT) of a K-sparse signal of size N has emerged as a critical topic for a long time.
no code implementations • 12 Jan 2021 • Wei Gao, Jie Chen, Cédric Richard
Convergence of the diffusion RLS (DRLS) algorithm to steady-state has been extensively studied in the literature, whereas no analysis of its transient convergence behavior has been reported yet.
no code implementations • 24 Feb 2021 • Jie Chen, Tobias Stollenwerk, Nicholas Chancellor
In this paper we experimentally test the performance of the recently proposed domain-wall encoding of discrete variables from [Chancellor Quantum Sci.
Quantum Physics
1 code implementation • 1 Mar 2021 • Yang Yang, Jiancong Chen, Ruixuan Wang, Ting Ma, Lingwei Wang, Jie Chen, Wei-Shi Zheng, Tong Zhang
Despite tremendous efforts, it is very challenging to generate a robust model to assist in the accurate quantification assessment of COVID-19 on chest CT images.
no code implementations • 19 Sep 2020 • Xiaoqing Zheng, Jie Chen, Hongcheng Wang, Song Zheng, Yaguang Kong
A machine vision-based surface quality inspection system is usually composed of two processes: image acquisition and automatic defect detection.
no code implementations • 12 Mar 2021 • Maboud F. Kaloorazi, Jie Chen
The efficiency and effectiveness of our proposed PbP-QLP algorithm are investigated through various classes of synthetic and real-world data matrices.
no code implementations • 18 Mar 2021 • Agus Sudjianto, Jinwen Qiu, Miaoqi Li, Jie Chen
The LIFE algorithm is able to fit a wide single-hidden-layer neural network (NN) accurately with three steps: defining the subsets of a dataset by the linear projections of neural nodes, creating the features from multiple narrow single-hidden-layer NNs trained on the different subsets of the data, combining the features with a linear model.
no code implementations • 22 Mar 2021 • Wenjie Liu, Jian Sun, Gang Wang, Francesco Bullo, Jie Chen
When both input and output channels are subject to DoS attacks and quantization, the proposed structure is shown able to decouple the encoding schemes for input, output, and estimated output signals.
no code implementations • 28 Mar 2021 • Xiao Zang, Yi Xie, Siyu Liao, Jie Chen, Bo Yuan
In this paper, we, for the first time, perform systematic investigation on noise injection-based regularization for point cloud-domain DNNs.
no code implementations • 28 Apr 2021 • Jie Chen, Shouzhen Chen, Mingyuan Bai, Jian Pu, Junping Zhang, Junbin Gao
In this paper, we consider the label dependency of graph nodes and propose a decoupling attention mechanism to learn both hard and soft attention.
no code implementations • 26 Apr 2021 • Jie Chen, Jie Liu, Chang Liu, Jian Zhang, Bing Han
To overcome this issue and to further improve the recognition performance, we adopt a deep learning approach for underwater target recognition and propose a LOFAR spectrum enhancement (LSE)-based underwater target recognition scheme, which consists of preprocessing, offline training, and online testing.
no code implementations • 30 Apr 2021 • Dongming Yang, Yuexian Zou, Can Zhang, Meng Cao, Jie Chen
Upon the frame, an Interaction Intensifier Module and a Correlation Parsing Module are carefully designed, where: a) interactive semantics from humans can be exploited and passed to objects to intensify interactions, b) interactive correlations among humans, objects and interactions are integrated to promote predictions.
no code implementations • 10 May 2021 • Jianqi Chen, Jieqiang Wei, Wei Chen, Henrik Sandberg, Karl H. Johansson, Jie Chen
Undetectable attacks are an important class of malicious attacks threatening the security of cyber-physical systems, which can modify a system's state but leave the system output measurements unaffected, and hence cannot be detected from the output.
no code implementations • 11 May 2021 • Huihuang Chen, Li Li, Jie Chen, Kuo-Yi Lin
In addition to aligning the global distribution, the real domain adaptation should also align the meso distribution and the micro distribution.
no code implementations • 13 May 2021 • Nengfeng Zhou, Zach Zhang, Vijayan N. Nair, Harsh Singhal, Jie Chen, Agus Sudjianto
In this paper, we provide an overview of bias and fairness issues that arise with the use of ML algorithms.
no code implementations • 26 May 2021 • Xinran Li, Kuo-Yi Lin, Min Meng, Xiuxian Li, Li Li, Yiguang Hong, Jie Chen
Due to the growing awareness of driving safety and the development of sophisticated technologies, advanced driving assistance system (ADAS) has been equipped in more and more vehicles with higher accuracy and lower price.
no code implementations • 17 Jun 2021 • Wenpeng Xing, Jie Chen, Zaifeng Yang, Qiang Wang
Image-based geometric modeling and novel view synthesis based on sparse, large-baseline samplings are challenging but important tasks for emerging multimedia applications such as virtual reality and immersive telepresence.
no code implementations • 22 Jun 2021 • Jie Chen, Yousef Saad, Zechen Zhang
The general method of graph coarsening or graph reduction has been a remarkably useful and ubiquitous tool in scientific computing and it is now just starting to have a similar impact in machine learning.
no code implementations • 13 Jul 2021 • Jie Chen, Zaifeng Yang, Tsz Nam Chan, Hui Li, Junhui Hou, Lap-Pui Chau
A progressive texture blending module is designed to blend the encoded two-stream features in a multi-scale and progressive manner.
no code implementations • 16 Jul 2021 • Jie Chen, Ryosuke Shimmura, Joe Suzuki
We consider learning an undirected graphical model from sparse data.
no code implementations • 20 Jul 2021 • Xingxing Yang, Jie Chen, Zaifeng Yang, Zhenghua Chen
Finally, a Fusion Attention Block (FAB) is proposed to adaptively fuse the features from the two branches and generate an optimized colorization result.
no code implementations • 4 Sep 2021 • Xiuxian Li, Kuo-Yi Lin, Li Li, Yiguang Hong, Jie Chen
For the first two cases, it can be shown that the scaled signGD converges at a linear rate.
no code implementations • 9 Sep 2021 • Shaojie Xu, Joel Vaughan, Jie Chen, Agus Sudjianto, Vijayan Nair
Principal component analysis (PCA) is a well-known linear dimension-reduction method that has been widely used in data analysis and modeling.
no code implementations • 14 Sep 2021 • Wei Gao, Jie Chen, Cédric Richard, Wentao Shi, Qunfei Zhang
The recursive least-squares algorithm with $\ell_1$-norm regularization ($\ell_1$-RLS) exhibits excellent performance in terms of convergence rate and steady-state error in identification of sparse systems.
no code implementations • 29 Sep 2021 • Nhan Pham, Lam M. Nguyen, Jie Chen, Thanh Lam Hoang, Subhro Das, Tsui-Wei Weng
In recent years, a proliferation of methods were developed for multi-agent reinforcement learning (MARL).