Search Results for author: Rui Wang

Found 464 papers, 153 papers with code

Riemannian kernel based Nyström method for approximate infinite-dimensional covariance descriptors with application to image set classification

no code implementations16 Jun 2018 Kai-Xuan Chen, Xiao-Jun Wu, Rui Wang, Josef Kittler

We propose a novel framework for representing image sets by approximating infinite-dimensional CovDs in the paradigm of the Nystr\"om method based on a Riemannian kernel.

General Classification

Challenges in Monocular Visual Odometry: Photometric Calibration, Motion Bias and Rolling Shutter Effect

no code implementations11 May 2017 Nan Yang, Rui Wang, Xiang Gao, Daniel Cremers

Monocular visual odometry (VO) and simultaneous localization and mapping (SLAM) have seen tremendous improvements in accuracy, robustness and efficiency, and have gained increasing popularity over recent years.

Monocular Visual Odometry Simultaneous Localization and Mapping

A Survey of Domain Adaptation for Neural Machine Translation

no code implementations COLING 2018 Chenhui Chu, Rui Wang

Neural machine translation (NMT) is a deep learning based approach for machine translation, which yields the state-of-the-art translation performance in scenarios where large-scale parallel corpora are available.

Domain Adaptation Machine Translation +2

Multiple Manifolds Metric Learning with Application to Image Set Classification

no code implementations30 May 2018 Rui Wang, Xiao-Jun Wu, Kai-Xuan Chen, Josef Kittler

In image set classification, a considerable advance has been made by modeling the original image sets by second order statistics or linear subspace, which typically lie on the Riemannian manifold.

Classification Face Recognition +3

A Simple Riemannian Manifold Network for Image Set Classification

no code implementations27 May 2018 Rui Wang, Xiao-Jun Wu, Josef Kittler

The proposed RieMNet and DRieMNet are evaluated on three tasks: video-based face recognition, set-based object categorization, and set-based cell identification.

Classification Face Recognition +2

Recurrent Neural Network for Learning DenseDepth and Ego-Motion from Video

no code implementations17 May 2018 Rui Wang, Jan-Michael Frahm, Stephen M. Pizer

Our method produces superior results to the state-of-the-art learning-based, single- or two-view depth estimation methods on both indoor and outdoor benchmark datasets.

3D Reconstruction Depth Estimation +1

Dynamic Sentence Sampling for Efficient Training of Neural Machine Translation

no code implementations ACL 2018 Rui Wang, Masao Utiyama, Eiichiro Sumita

Traditional Neural machine translation (NMT) involves a fixed training procedure where each sentence is sampled once during each epoch.

Machine Translation NMT +2

Syntax-Directed Attention for Neural Machine Translation

no code implementations12 Nov 2017 Kehai Chen, Rui Wang, Masao Utiyama, Eiichiro Sumita, Tiejun Zhao

In this paper, we extend local attention with syntax-distance constraint, to focus on syntactically related source words with the predicted target word, thus learning a more effective context vector for word prediction.

Machine Translation NMT +1

Online Photometric Calibration for Auto Exposure Video for Realtime Visual Odometry and SLAM

no code implementations5 Oct 2017 Paul Bergmann, Rui Wang, Daniel Cremers

We further show that our calibration can improve the performance of a state-of-the-art direct visual odometry method that works solely on pixel intensities, calibrating for photometric parameters in an online fashion in realtime.

Camera Calibration Visual Odometry

Stereo DSO: Large-Scale Direct Sparse Visual Odometry with Stereo Cameras

no code implementations ICCV 2017 Rui Wang, Martin Schwörer, Daniel Cremers

We propose Stereo Direct Sparse Odometry (Stereo DSO) as a novel method for highly accurate real-time visual odometry estimation of large-scale environments from stereo cameras.

3D Reconstruction Optical Flow Estimation +1

Shape Generation using Spatially Partitioned Point Clouds

no code implementations19 Jul 2017 Matheus Gadelha, Subhransu Maji, Rui Wang

We propose to use the expressive power of neural networks to learn a distribution over the shape coefficients in a generative-adversarial framework.

3D Shape Induction from 2D Views of Multiple Objects

no code implementations18 Dec 2016 Matheus Gadelha, Subhransu Maji, Rui Wang

In this paper we investigate the problem of inducing a distribution over three-dimensional structures given two-dimensional views of multiple objects taken from unknown viewpoints.

Connecting Phrase based Statistical Machine Translation Adaptation

no code implementations COLING 2016 Rui Wang, Hai Zhao, Bao-liang Lu, Masao Utiyama, Eiichro Sumita

Although more additional corpora are now available for Statistical Machine Translation (SMT), only the ones which belong to the same or similar domains with the original corpus can indeed enhance SMT performance directly.

Machine Translation Sentence +1

LDSO: Direct Sparse Odometry with Loop Closure

no code implementations3 Aug 2018 Xiang Gao, Rui Wang, Nikolaus Demmel, Daniel Cremers

In this paper we present an extension of Direct Sparse Odometry (DSO) to a monocular visual SLAM system with loop closure detection and pose-graph optimization (LDSO).

Loop Closure Detection Translation

A Deeper Look at 3D Shape Classifiers

no code implementations7 Sep 2018 Jong-Chyi Su, Matheus Gadelha, Rui Wang, Subhransu Maji

We investigate the role of representations and architectures for classifying 3D shapes in terms of their computational efficiency, generalization, and robustness to adversarial transformations.

3D Shape Classification Computational Efficiency +1

NICT's Corpus Filtering Systems for the WMT18 Parallel Corpus Filtering Task

no code implementations WS 2018 Rui Wang, Benjamin Marie, Masao Utiyama, Eiichiro Sumita

Using the clean data of the WMT18 shared news translation task, we designed several features and trained a classifier to score each sentence pairs in the noisy data.

Machine Translation NMT +2

Band Assignment in Dual Band Systems: A Learning-based Approach

no code implementations2 Oct 2018 Daoud Burghal, Rui Wang, Andreas F. Molisch

In this work, we use a machine learning framework to provide an efficient and practical solution to the band assignment problem.

ATM:Adversarial-neural Topic Model

no code implementations1 Nov 2018 Rui Wang, Deyu Zhou, Yulan He

The proposed ATM models topics with Dirichlet prior and employs a generator network to capture the semantic patterns among latent topics.

Event Extraction Topic Models

A Deep Cascade Model for Multi-Document Reading Comprehension

no code implementations28 Nov 2018 Ming Yan, Jiangnan Xia, Chen Wu, Bin Bi, Zhongzhou Zhao, Ji Zhang, Luo Si, Rui Wang, Wei Wang, Haiqing Chen

To address this problem, we develop a novel deep cascade learning model, which progressively evolves from the document-level and paragraph-level ranking of candidate texts to more precise answer extraction with machine reading comprehension.

Machine Reading Comprehension Question Answering +2

Sentence Embedding for Neural Machine Translation Domain Adaptation

no code implementations ACL 2017 Rui Wang, Andrew Finch, Masao Utiyama, Eiichiro Sumita

Although new corpora are becoming increasingly available for machine translation, only those that belong to the same or similar domains are typically able to improve translation performance.

Domain Adaptation Language Modelling +6

Context-Aware Smoothing for Neural Machine Translation

no code implementations IJCNLP 2017 Kehai Chen, Rui Wang, Masao Utiyama, Eiichiro Sumita, Tiejun Zhao

In Neural Machine Translation (NMT), each word is represented as a low-dimension, real-value vector for encoding its syntax and semantic information.

Machine Translation NMT +3

SketchNet: Sketch Classification With Web Images

no code implementations CVPR 2016 Hua Zhang, Si Liu, Changqing Zhang, Wenqi Ren, Rui Wang, Xiaochun Cao

In this study, we present a weakly supervised approach that discovers the discriminative structures of sketch images, given pairs of sketch images and web images.

Classification General Classification

Binarized Mode Seeking for Scalable Visual Pattern Discovery

no code implementations CVPR 2017 Wei Zhang, Xiaochun Cao, Rui Wang, Yuanfang Guo, Zhineng Chen

Second, we further extend bMS to a more general form, namely contrastive binary mean shift (cbMS), which maximizes the contrastive density in binary space, for finding informative patterns that are both frequent and discriminative for the dataset.

Joint Grammar and Treebank Development for Mandarin Chinese with HPSG

no code implementations LREC 2012 Yi Zhang, Rui Wang, Yu Chen

We present the ongoing development of MCG, a linguistically deep and precise grammar for Mandarin Chinese together with its accompanying treebank, both based on the linguistic framework of HPSG, and using MRS as the semantic representation.

Supervised ML Solution for Band Assignment in Dual-Band Systems with Omnidirectional and Directional Antennas

no code implementations28 Feb 2019 Daoud Burghal, Rui Wang, Abdullah Alghafis, Andreas F. Molisch

This paper considers the band assignment (BA) problem in dual-band systems, where the basestation (BS) chooses one of the two available frequency bands (centimeter-wave and millimeter-wave bands) to communicate with the user equipment (UE).

Binary Classification

Discriminative Clustering for Robust Unsupervised Domain Adaptation

no code implementations30 May 2019 Rui Wang, Guoyin Wang, Ricardo Henao

Unsupervised domain adaptation seeks to learn an invariant and discriminative representation for an unlabeled target domain by leveraging the information of a labeled source dataset.

Clustering Partial Domain Adaptation +1

Lattice-Based Transformer Encoder for Neural Machine Translation

no code implementations ACL 2019 Fengshun Xiao, Jiangtong Li, Hai Zhao, Rui Wang, Kehai Chen

To integrate different segmentations with the state-of-the-art NMT model, Transformer, we propose lattice-based encoders to explore effective word or subword representation in an automatic way during training.

Machine Translation NMT +1

Deep Reinforcement Learning for Multi-objective Optimization

no code implementations6 Jun 2019 Kaiwen Li, Tao Zhang, Rui Wang

The solutions can be directly obtained by a simple forward calculation of the neural network; thereby, no iteration is required and the MOP can be always solved in a reasonable time.

reinforcement-learning Reinforcement Learning (RL)

Inferring 3D Shapes from Image Collections using Adversarial Networks

no code implementations11 Jun 2019 Matheus Gadelha, Aartika Rai, Subhransu Maji, Rui Wang

To this end, we present new differentiable projection operators that can be used by PrGAN to learn better 3D generative models.

Generative Adversarial Network

Distilling with Residual Network for Single Image Super Resolution

no code implementations5 Jul 2019 Xiaopeng Sun, Wen Lu, Rui Wang, Furui Bai

Recently, the deep convolutional neural network (CNN) has made remarkable progress in single image super resolution(SISR).

Image Reconstruction Image Super-Resolution

Deep learning scheme for recovery of broadband microwave photonic receiving systems in transceivers without expert knowledge and system priors

no code implementations17 Jul 2019 Shaofu Xu, Rui Wang, Jianping Chen, Lei Yu, Weiwen Zou

However, the quality of the signals may be degraded by defective photonic analog links, especially in a complicated MWP system.

Unsupervised Bilingual Word Embedding Agreement for Unsupervised Neural Machine Translation

no code implementations ACL 2019 Haipeng Sun, Rui Wang, Kehai Chen, Masao Utiyama, Eiichiro Sumita, Tiejun Zhao

In previous methods, UBWE is first trained using non-parallel monolingual corpora and then this pre-trained UBWE is used to initialize the word embedding in the encoder and decoder of UNMT.

Denoising Machine Translation +1

Sentence-Level Agreement for Neural Machine Translation

no code implementations ACL 2019 Mingming Yang, Rui Wang, Kehai Chen, Masao Utiyama, Eiichiro Sumita, Min Zhang, Tiejun Zhao

The training objective of neural machine translation (NMT) is to minimize the loss between the words in the translated sentences and those in the references.

Machine Translation NMT +2

Multiple Riemannian Manifold-valued Descriptors based Image Set Classification with Multi-Kernel Metric Learning

no code implementations6 Aug 2019 Rui Wang, Xiao-Jun Wu, Josef Kittler

Specifically, the covariance matrix, linear subspace, and Gaussian distribution are applied for set representation simultaneously.

Classification Emotion Recognition +5

NICT's Supervised Neural Machine Translation Systems for the WMT19 News Translation Task

no code implementations WS 2019 Raj Dabre, Kehai Chen, Benjamin Marie, Rui Wang, Atsushi Fujita, Masao Utiyama, Eiichiro Sumita

In this paper, we describe our supervised neural machine translation (NMT) systems that we developed for the news translation task for Kazakh↔English, Gujarati↔English, Chinese↔English, and English→Finnish translation directions.

Machine Translation NMT +2

Revisiting Simple Domain Adaptation Methods in Unsupervised Neural Machine Translation

no code implementations26 Aug 2019 Haipeng Sun, Rui Wang, Kehai Chen, Masao Utiyama, Eiichiro Sumita, Tiejun Zhao, Chenhui Chu

However, it has not been well-studied for unsupervised neural machine translation (UNMT), although UNMT has recently achieved remarkable results in several domain-specific language pairs.

Domain Adaptation Machine Translation +1

Open Event Extraction from Online Text using a Generative Adversarial Network

no code implementations IJCNLP 2019 Rui Wang, Deyu Zhou, Yulan He

Experimental results show that our model outperforms the baseline approaches on all the datasets, with more significant improvements observed on the news article dataset where an increase of 15\% is observed in F-measure.

Event Extraction Generative Adversarial Network

Regularized Context Gates on Transformer for Machine Translation

no code implementations ACL 2020 Xintong Li, Lemao Liu, Rui Wang, Guoping Huang, Max Meng

This paper first provides a method to identify source and target contexts and then introduce a gate mechanism to control the source and target contributions in Transformer.

Machine Translation NMT +1

Fake Colorized Image Detection

no code implementations9 Jan 2018 Yuanfang Guo, Xiaochun Cao, Wei zhang, Rui Wang

Based on our observations, i. e., potential traces in the hue, saturation, dark and bright channels, we propose two simple yet effective detection methods for fake colorized images: Histogram based Fake Colorized Image Detection (FCID-HIST) and Feature Encoding based Fake Colorized Image Detection (FCID-FE).

Multimedia

Machine learning for the recognition of emotion in the speech of couples in psychotherapy using the Stanford Suppes Brain Lab Psychotherapy Dataset

no code implementations14 Jan 2019 Colleen E. Crangle, Rui Wang, Marcos Perreau-Guimaraes, Michelle U. Nguyen, Duc T. Nguyen, Patrick Suppes

Our results show that couple therapy is a rich context for the study of emotion in naturally occurring speech.

Sound Human-Computer Interaction Audio and Speech Processing

First-Order Preconditioning via Hypergradient Descent

1 code implementation18 Oct 2019 Ted Moskovitz, Rui Wang, Janice Lan, Sanyam Kapoor, Thomas Miconi, Jason Yosinski, Aditya Rawal

Standard gradient descent methods are susceptible to a range of issues that can impede training, such as high correlations and different scaling in parameter space. These difficulties can be addressed by second-order approaches that apply a pre-conditioning matrix to the gradient to improve convergence.

Syntax-Enhanced Self-Attention-Based Semantic Role Labeling

no code implementations IJCNLP 2019 Yue Zhang, Rui Wang, Luo Si

As a fundamental NLP task, semantic role labeling (SRL) aims to discover the semantic roles for each predicate within one sentence.

Semantic Role Labeling Sentence

Attention Optimization for Abstractive Document Summarization

no code implementations IJCNLP 2019 Min Gui, Junfeng Tian, Rui Wang, Zhenglu Yang

Attention plays a key role in the improvement of sequence-to-sequence-based document summarization models.

Document Summarization

Document-level Neural Machine Translation with Associated Memory Network

no code implementations31 Oct 2019 Shu Jiang, Rui Wang, Zuchao Li, Masao Utiyama, Kehai Chen, Eiichiro Sumita, Hai Zhao, Bao-liang Lu

Most existing document-level NMT approaches are satisfied with a smattering sense of global document-level information, while this work focuses on exploiting detailed document-level context in terms of a memory network.

Machine Translation NMT +2

English-Myanmar Supervised and Unsupervised NMT: NICT's Machine Translation Systems at WAT-2019

no code implementations WS 2019 Rui Wang, Haipeng Sun, Kehai Chen, Chenchen Ding, Masao Utiyama, Eiichiro Sumita

This paper presents the NICT{'}s participation (team ID: NICT) in the 6th Workshop on Asian Translation (WAT-2019) shared translation task, specifically Myanmar (Burmese) - English task in both translation directions.

Language Modelling Machine Translation +2

SJTU-NICT at MRP 2019: Multi-Task Learning for End-to-End Uniform Semantic Graph Parsing

no code implementations CONLL 2019 Zuchao Li, Hai Zhao, Zhuosheng Zhang, Rui Wang, Masao Utiyama, Eiichiro Sumita

This paper describes our SJTU-NICT{'}s system for participating in the shared task on Cross-Framework Meaning Representation Parsing (MRP) at the 2019 Conference for Computational Language Learning (CoNLL).

Multi-Task Learning

Probing Contextualized Sentence Representations with Visual Awareness

no code implementations7 Nov 2019 Zhuosheng Zhang, Rui Wang, Kehai Chen, Masao Utiyama, Eiichiro Sumita, Hai Zhao

We present a universal framework to model contextualized sentence representations with visual awareness that is motivated to overcome the shortcomings of the multimodal parallel data with manual annotations.

Machine Translation Natural Language Inference +2

Machine Intelligence at the Edge with Learning Centric Power Allocation

no code implementations12 Nov 2019 Shuai Wang, Yik-Chung Wu, Minghua Xia, Rui Wang, H. Vincent Poor

However, power allocation in this paradigm requires maximizing the learning performance instead of the communication throughput, for which the celebrated water-filling and max-min fairness algorithms become inefficient.

Fairness Learning Theory

Deep Audio-Visual Learning: A Survey

no code implementations14 Jan 2020 Hao Zhu, Mandi Luo, Rui Wang, Aihua Zheng, Ran He

Audio-visual learning, aimed at exploiting the relationship between audio and visual modalities, has drawn considerable attention since deep learning started to be used successfully.

audio-visual learning Representation Learning

Modeling Future Cost for Neural Machine Translation

no code implementations28 Feb 2020 Chaoqun Duan, Kehai Chen, Rui Wang, Masao Utiyama, Eiichiro Sumita, Conghui Zhu, Tiejun Zhao

Existing neural machine translation (NMT) systems utilize sequence-to-sequence neural networks to generate target translation word by word, and then make the generated word at each time-step and the counterpart in the references as consistent as possible.

Machine Translation NMT +1

D3VO: Deep Depth, Deep Pose and Deep Uncertainty for Monocular Visual Odometry

no code implementations CVPR 2020 Nan Yang, Lukas von Stumberg, Rui Wang, Daniel Cremers

We propose D3VO as a novel framework for monocular visual odometry that exploits deep networks on three levels -- deep depth, pose and uncertainty estimation.

Monocular Depth Estimation Monocular Visual Odometry

Fake Generated Painting Detection via Frequency Analysis

no code implementations5 Mar 2020 Yong Bai, Yuanfang Guo, Jinjie Wei, Lin Lu, Rui Wang, Yunhong Wang

With the development of deep neural networks, digital fake paintings can be generated by various style transfer algorithms. To detect the fake generated paintings, we analyze the fake generated and real paintings in Fourier frequency domain and observe statistical differences and artifacts.

Style Transfer

Knowledge Graph Embedding via Graph Attenuated Attention Networks

no code implementations IEEE Access 2019 Rui Wang, Bicheng Li, Shengwei Hu, Wenqian Du, Min Zhang

However, these methods assign the same weights on the relation path in the knowledge graph and ignore the rich information presented in neighbor nodes, which result in incomplete mining of triple features.

Knowledge Base Completion Knowledge Graph Embedding +4

Learning Generative Models of Shape Handles

no code implementations CVPR 2020 Matheus Gadelha, Giorgio Gori, Duygu Ceylan, Radomir Mech, Nathan Carr, Tamy Boubekeur, Rui Wang, Subhransu Maji

We present a generative model to synthesize 3D shapes as sets of handles -- lightweight proxies that approximate the original 3D shape -- for applications in interactive editing, shape parsing, and building compact 3D representations.

Explicit Reordering for Neural Machine Translation

no code implementations8 Apr 2020 Kehai Chen, Rui Wang, Masao Utiyama, Eiichiro Sumita

Thus, we propose a novel reordering method to explicitly model this reordering information for the Transformer-based NMT.

Machine Translation NMT +2

Self-Training for Unsupervised Neural Machine Translation in Unbalanced Training Data Scenarios

no code implementations NAACL 2021 Haipeng Sun, Rui Wang, Kehai Chen, Masao Utiyama, Eiichiro Sumita, Tiejun Zhao

Unsupervised neural machine translation (UNMT) that relies solely on massive monolingual corpora has achieved remarkable results in several translation tasks.

Machine Translation Translation

Deep Manifold Prior

no code implementations8 Apr 2020 Matheus Gadelha, Rui Wang, Subhransu Maji

We present a prior for manifold structured data, such as surfaces of 3D shapes, where deep neural networks are adopted to reconstruct a target shape using gradient descent starting from a random initialization.

Denoising Gaussian Processes

Syntax-aware Data Augmentation for Neural Machine Translation

no code implementations29 Apr 2020 Sufeng Duan, Hai Zhao, Dong-dong Zhang, Rui Wang

Data augmentation is an effective performance enhancement in neural machine translation (NMT) by generating additional bilingual data.

Data Augmentation Machine Translation +3

AN-GCN: An Anonymous Graph Convolutional Network Defense Against Edge-Perturbing Attack

no code implementations6 May 2020 Ao Liu, Beibei Li, Tao Li, Pan Zhou, Rui Wang

In this paper, we first generalize the formulation of edge-perturbing attacks and strictly prove the vulnerability of GCNs to such attacks in node classification tasks.

Adversarial Attack Classification +4

Aortic Pressure Forecasting with Deep Sequence Learning

no code implementations12 May 2020 Eliza Huang, Rui Wang, Uma Chandrasekaran, Rose Yu

The aim of this study was to forecast the mean aortic pressure five minutes in advance, using the 25 Hz time series data of previous five minutes as input.

Time Series Time Series Analysis

VPLNet: Deep Single View Normal Estimation With Vanishing Points and Lines

no code implementations CVPR 2020 Rui Wang, David Geraghty, Kevin Matzen, Richard Szeliski, Jan-Michael Frahm

Starting from a color image and a Manhattan line map, we use a deep neural network to regress on a dense normal map, and a dense Manhattan label map that identifies planar regions aligned with the Manhattan directions.

Depth Estimation Surface Normal Estimation

Content Word Aware Neural Machine Translation

no code implementations ACL 2020 Kehai Chen, Rui Wang, Masao Utiyama, Eiichiro Sumita

Neural machine translation (NMT) encodes the source sentence in a universal way to generate the target sentence word-by-word.

Machine Translation NMT +2

Syntax-Aware Opinion Role Labeling with Dependency Graph Convolutional Networks

no code implementations ACL 2020 Bo Zhang, Yue Zhang, Rui Wang, Zhenghua Li, Min Zhang

The experimental results show that syntactic information is highly valuable for ORL, and our final MTL model effectively boosts the F1 score by 9. 29 over the syntax-agnostic baseline.

Fine-Grained Opinion Analysis Multi-Task Learning

SenseCare: A Research Platform for Medical Image Informatics and Interactive 3D Visualization

no code implementations3 Apr 2020 Qi Duan, Guotai Wang, Rui Wang, Chao Fu, Xinjun Li, Maoliang Gong, Xinglong Liu, Qing Xia, Xiaodi Huang, Zhiqiang Hu, Ning Huang, Shaoting Zhang

To this end, we have developed SenseCare research platform, which is designed to facilitate translational research on intelligent diagnosis and treatment planning in various clinical scenarios.

Human-Computer Interaction Image and Video Processing

DeepNetQoE: Self-adaptive QoE Optimization Framework of Deep Networks

no code implementations17 Jul 2020 Rui Wang, Min Chen, Nadra Guizani, Yong Li, Hamid Gharavi, Kai Hwang

A self-adaptive QoE model is set up that relates the model's accuracy with the computing resources required for training which will allow the experience value of the model to improve.

Crowd Counting

Learning Centric Power Allocation for Edge Intelligence

no code implementations21 Jul 2020 Shuai Wang, Rui Wang, Qi Hao, Yik-Chung Wu, H. Vincent Poor

While machine-type communication (MTC) devices generate massive data, they often cannot process this data due to limited energy and computation power.

Fairness

Safe and Effective Picking Paths in Clutter given Discrete Distributions of Object Poses

no code implementations11 Aug 2020 Rui Wang, Chaitanya Mitash, Shiyang Lu, Daniel Boehm, Kostas E. Bekris

This work proposes first a perception process for 6D pose estimation, which returns a discrete distribution of object poses in a scene.

6D Pose Estimation Object

What leads to generalization of object proposals?

no code implementations13 Aug 2020 Rui Wang, Dhruv Mahajan, Vignesh Ramanathan

It is lucrative to train a good proposal model, that generalizes to unseen classes.

Object Object Proposal Generation

Data-dependent Gaussian Prior Objective for Language Generation

no code implementations ICLR 2020 Zuchao Li, Rui Wang, Kehai Chen, Masso Utiyama, Eiichiro Sumita, Zhuosheng Zhang, Hai Zhao

However, MLE focuses on once-to-all matching between the predicted sequence and gold-standard, consequently treating all incorrect predictions as being equally incorrect.

Image Captioning L2 Regularization +4

Estimating Q(s,s') with Deterministic Dynamics Gradients

no code implementations ICML 2020 Ashley Edwards, Himanshu Sahni, Rosanne Liu, Jane Hung, Ankit Jain, Rui Wang, Adrien Ecoffet, Thomas Miconi, Charles Isbell, Jason Yosinski

In this paper, we introduce a novel form of a value function, $Q(s, s')$, that expresses the utility of transitioning from a state $s$ to a neighboring state $s'$ and then acting optimally thereafter.

Transfer Learning

Graph-to-Sequence Neural Machine Translation

no code implementations16 Sep 2020 Sufeng Duan, Hai Zhao, Rui Wang

In the light of the current NMT models more or less capture graph information among the sequence in a latent way, we present a graph-to-sequence model facilitating explicit graph information capturing.

Graph-to-Sequence Machine Translation +3

Neural Topic Modeling by Incorporating Document Relationship Graph

no code implementations EMNLP 2020 Deyu Zhou, Xuemeng Hu, Rui Wang

Graph Neural Networks (GNNs) that capture the relationships between graph nodes via message passing have been a hot research direction in the natural language processing community.

Prior Knowledge Representation for Self-Attention Networks

no code implementations1 Jan 2021 Kehai Chen, Rui Wang, Masao Utiyama, Eiichiro Sumita

Self-attention networks (SANs) have shown promising empirical results in various natural language processing tasks.

Translation

Cross-lingual Transfer Learning for Pre-trained Contextualized Language Models

no code implementations1 Jan 2021 Zuchao Li, Kevin Barry Parnow, Hai Zhao, Zhuosheng Zhang, Rui Wang, Masao Utiyama, Eiichiro Sumita

Though the pre-trained contextualized language model (PrLM) has made a significant impact on NLP, training PrLMs in languages other than English can be impractical for two reasons: other languages often lack corpora sufficient for training powerful PrLMs, and because of the commonalities among human languages, computationally expensive PrLM training for different languages is somewhat redundant.

Cross-Lingual Transfer Language Modelling +3

Investigating Constraint Relationship in Evolutionary Many-Constraint Optimization

no code implementations9 Oct 2020 Mengjun Ming, Rui Wang, Tao Zhang

This paper contributes to the treatment of extensive constraints in evolutionary many-constraint optimization through consideration of the relationships between pair-wise constraints.

Learning Centric Wireless Resource Allocation for Edge Computing: Algorithm and Experiment

no code implementations29 Oct 2020 Liangkai Zhou, Yuncong Hong, Shuai Wang, Ruihua Han, Dachuan Li, Rui Wang, Qi Hao

Edge intelligence is an emerging network architecture that integrates sensing, communication, computing components, and supports various machine learning applications, where a fundamental communication question is: how to allocate the limited wireless resources (such as time, energy) to the simultaneous model training of heterogeneous learning tasks?

Edge-computing

Hierarchical Reinforcement Learning for Relay Selection and Power Optimization in Two-Hop Cooperative Relay Network

no code implementations10 Nov 2020 Yuanzhe Geng, Erwu Liu, Rui Wang, Yiming Liu

Simulation results reveal that compared with traditional DRL method, the HRL training algorithm can reach convergence 30 training iterations earlier and reduce the outage probability by 5% in two-hop relay network with the same outage threshold.

Hierarchical Reinforcement Learning reinforcement-learning +1

Decoding SARS-CoV-2 transmission, evolution and ramification on COVID-19 diagnosis, vaccine, and medicine

no code implementations29 Apr 2020 Rui Wang, Yuta Hozumi, Changchuan Yin, Guo-Wei Wei

Tremendous effort has been given to the development of diagnostic tests, preventive vaccines, and therapeutic medicines for coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).

COVID-19 Diagnosis

Hardware-irrelevant parallel processing system

no code implementations24 Jun 2020 Xiuting Zou, Shaofu Xu, Anyi Deng, Rui Wang, Weiwen Zou

We propose a hardware-irrelevant PPS of which the performance is unaffected by hardware deviations.

Characterizing SARS-CoV-2 mutations in the United States

no code implementations24 Jul 2020 Rui Wang, Jiahui Chen, Kaifu Gao, Yuta Hozumi, Changchuan Yin, Guo-Wei Wei

Using genotyping, sequence-alignment, time-evolution, $k$-means clustering, protein-folding stability, algebraic topology, and network theory, we reveal that the US SARS-CoV-2 has four substrains and five top US SARS-CoV-2 mutations were first detected in China (2 cases), Singapore (2 cases), and the United Kingdom (1 case).

Protein Folding

Host immune response driving SARS-CoV-2 evolution

no code implementations17 Aug 2020 Rui Wang, Yuta Hozumi, Yong-Hui Zheng, Changchuan Yin, Guo-Wei Wei

Additionally, we show that children under age five and the elderly may be at high risk from COVID-19 because of their overreacting to the viral infection.

Prediction and mitigation of mutation threats to COVID-19 vaccines and antibody therapies

no code implementations13 Oct 2020 Jiahui Chen, Kaifu Gao, Rui Wang, GuoWei Wei

This discovery implies the vulnerability of current vaccines and antibody drugs to new mutations.

SG-Net: Syntax Guided Transformer for Language Representation

no code implementations27 Dec 2020 Zhuosheng Zhang, Yuwei Wu, Junru Zhou, Sufeng Duan, Hai Zhao, Rui Wang

In detail, for self-attention network (SAN) sponsored Transformer-based encoder, we introduce syntactic dependency of interest (SDOI) design into the SAN to form an SDOI-SAN with syntax-guided self-attention.

Machine Reading Comprehension Machine Translation +2

Reconfigurable Intelligent Surface Assisted Mobile Edge Computing with Heterogeneous Learning Tasks

no code implementations25 Dec 2020 Shanfeng Huang, Shuai Wang, Rui Wang, Miaowen Wen, Kaibin Huang

The ever-growing popularity and rapid improving of artificial intelligence (AI) have raised rethinking on the evolution of wireless networks.

3D Object Detection Autonomous Driving +2

Turbulence suppression by streamwise-varying wall rotation in pipe flow

no code implementations6 Jan 2021 Xu Liu, Hongbo Zhu, Rui Wang, Yan Bao, Dai Zhou, Zhaolong Han, Chuanqing Zhou, Yegao Qu, Hui Xu

Two control parameters, which are velocity amplitude and wavelength, are considered.

Fluid Dynamics

Theory of competing Chern-Simons orders and emergent phase transitions

no code implementations13 Jan 2021 Rui Wang, Z. Y. Xie, Baigeng Wang, Tigran Sedrakyan

Namely, the Chern-Simons superconductor describes the planar N\'{e}el state, while the Chern-Simons exciton insulator corresponds to the non-uniform chiral spin-liquid.

Strongly Correlated Electrons

Deep Deterministic Policy Gradient for Relay Selection and Power Allocation in Cooperative Communication Network

no code implementations11 Dec 2020 Yuanzhe Geng, Erwu Liu, Rui Wang, Yiming Liu, Jie Wang, Gang Shen, Zhao Dong

Perfect channel state information (CSI) is usually required when considering relay selection and power allocation in cooperative communication.

Information Theory Systems and Control Systems and Control Information Theory

Mimicing the Kane-Mele type spin orbit interaction by spin-flexual phonon coupling in graphene devices

no code implementations28 Mar 2015 Zhanbin Bai, Rui Wang, Yazhou Zhou, Tianru Wu, Jianlei Ge, Jing Li, Yuyuan Qin, Fucong Fei, Lu Cao, Xuefeng Wang, Xinran Wang, Shuai Zhang, Liling Sun, You Song, Fengqi Song

On the efforts of enhancing the spin orbit interaction (SOI) of graphene for seeking the dissipationless quantum spin Hall devices, unique Kane-Mele type SOI and high mobility samples are desired.

Mesoscale and Nanoscale Physics

Methodology-centered review of molecular modeling, simulation, and prediction of SARS-CoV-2

no code implementations1 Feb 2021 Kaifu Gao, Rui Wang, Jiahui Chen, Limei Cheng, Jaclyn Frishcosy, Yuta Huzumi, Yuchi Qiu, Tom Schluckbier, Guo-Wei Wei

To provide the reader a quick update about the status of molecular modeling, simulation, and prediction of SARS-CoV-2, we present a comprehensive and systematic methodology-centered narrative in the nick of time.

Drug Discovery

Tight Integration of Feature-based Relocalization in Monocular Direct Visual Odometry

no code implementations1 Feb 2021 Mariia Gladkova, Rui Wang, Niclas Zeller, Daniel Cremers

To achieve map-based relocalization for direct methods, we integrate image features into Direct Sparse Odometry (DSO) and rely on feature matching to associate online visual odometry (VO) with a previously built map.

Visual Odometry

Text Compression-aided Transformer Encoding

no code implementations11 Feb 2021 Zuchao Li, Zhuosheng Zhang, Hai Zhao, Rui Wang, Kehai Chen, Masao Utiyama, Eiichiro Sumita

In this paper, we propose explicit and implicit text compression approaches to enhance the Transformer encoding and evaluate models using this approach on several typical downstream tasks that rely on the encoding heavily.

Text Compression

High-α-Metal-Rich stars in the LAMOST-MRS survey and its connection with the galactic bulge

no code implementations11 Feb 2021 Haopeng Zhang, Yuqin Chen, Gang Zhao, Jingkun Zhao, Xilong Liang, Haining Li, Yaqian Wu, Ali Luo, Rui Wang

A tentative interpretation of this special group is that its stars were formed in the X-shaped bar/bulge region, close to its corotation radius, where radial migration is the most intense, and brings them to present locations at 9 kpc and beyond.

Astrophysics of Galaxies Solar and Stellar Astrophysics

On Secure Degrees of Freedom of the MIMO Interference Channel with Local Output Feedback

no code implementations3 Jan 2021 Tong Zhang, Yinfei Xu, Shuai Wang, Miaowen Wen, Rui Wang

This paper studies the problem of sum-secure degrees of freedom (SDoF) of the (M, M, N, N) multiple-input multiple-output (MIMO) interference channel with local output feedback, so as to build an information-theoretic foundation and provide practical transmission schemes for 6G-enabled vehicles-to-vehicles (V2V).

Information Theory Information Theory

Generalization Through Hand-Eye Coordination: An Action Space for Learning Spatially-Invariant Visuomotor Control

no code implementations28 Feb 2021 Chen Wang, Rui Wang, Ajay Mandlekar, Li Fei-Fei, Silvio Savarese, Danfei Xu

Key to such capability is hand-eye coordination, a cognitive ability that enables humans to adaptively direct their movements at task-relevant objects and be invariant to the objects' absolute spatial location.

Imitation Learning Zero-shot Generalization

Blockchain-Based Federated Learning in Mobile Edge Networks with Application in Internet of Vehicles

no code implementations1 Mar 2021 Rui Wang, Heju Li, Erwu Liu

The rapid increase of the data scale in Internet of Vehicles (IoV) system paradigm, hews out new possibilities in boosting the service quality for the emerging applications through data sharing.

Edge-computing Federated Learning +1

Exploring Imitation Learning for Autonomous Driving with Feedback Synthesizer and Differentiable Rasterization

no code implementations2 Mar 2021 Jinyun Zhou, Rui Wang, Xu Liu, Yifei Jiang, Shu Jiang, Jiaming Tao, Jinghao Miao, Shiyu Song

Detailed ablation and visualization analysis are included to further demonstrate each of our proposed modules' effectiveness in our method.

Autonomous Driving Data Augmentation +1 Robotics

Decoding asymptomatic COVID-19 infection and transmission

no code implementations2 Jul 2020 Rui Wang, Yuta Hozumi, Changchuan Yin, Guo-Wei Wei

By analyzing the distribution of 11083G>T in various countries, we unveil that 11083G>T may correlate with the hypotoxicity of SARS-CoV-2.

Topological Data Analysis

Mutations on COVID-19 diagnostic targets

no code implementations5 May 2020 Rui Wang, Yuta Hozumi, Changchuan Yin, Guo-Wei Wei

Effective, sensitive, and reliable diagnostic reagents are of paramount importance for combating the ongoing coronavirus disease 2019 (COVID-19) pandemic at a time there is no preventive vaccine nor specific drug available for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).

Vaccine-escape and fast-growing mutations in the United Kingdom, the United States, Singapore, Spain, South Africa, and other COVID-19-devastated countries

no code implementations14 Mar 2021 Rui Wang, Jiahui Chen, Kaifu Gao, Guo-Wei Wei

We further unveil that mutation N501Y involved in United Kingdom (UK), South Africa, and Brazil variants may moderately weaken the binding between the RBD and many known antibodies, while mutations E484K and K417N found in South Africa and Brazilian variants can potentially disrupt the binding between the RDB and many known antibodies.

Beamspace Channel Estimation for Wideband Millimeter-Wave MIMO: A Model-Driven Unsupervised Learning Approach

no code implementations30 Jun 2020 Hengtao He, Rui Wang, Weijie Jin, Shi Jin, Chao-Kai Wen, Geoffrey Ye Li

By utilizing the Stein's unbiased risk estimator loss, the LDGEC network can be trained only with limited measurements corresponding to the pilot symbols, instead of the real channel data.

Compressive Sensing Denoising

Turning Channel Noise into an Accelerator for Over-the-Air Principal Component Analysis

no code implementations20 Apr 2021 Zezhong Zhang, Guangxu Zhu, Rui Wang, Vincent K. N. Lau, Kaibin Huang

The novelty of this design lies in exploiting channel noise to accelerate the descent in the region around each saddle point encountered by gradient descent, thereby increasing the convergence speed of over-the-air PCA.

Data Compression

Wireless Sensing With Deep Spectrogram Network and Primitive Based Autoregressive Hybrid Channel Model

no code implementations21 Apr 2021 Guoliang Li, Shuai Wang, Jie Li, Rui Wang, Xiaohui Peng, Tony Xiao Han

Although wireless channel models can be adopted for dataset generation, current channel models are mostly designed for communication rather than sensing.

Scene Understanding

Long Short-Term Temporal Meta-learning in Online Recommendation

no code implementations8 May 2021 Ruobing Xie, Yalong Wang, Rui Wang, Yuanfu Lu, Yuanhang Zou, Feng Xia, Leyu Lin

An effective online recommendation system should jointly capture users' long-term and short-term preferences in both users' internal behaviors (from the target recommendation task) and external behaviors (from other tasks).

Meta-Learning

Model Pruning Based on Quantified Similarity of Feature Maps

no code implementations13 May 2021 Zidu Wang, Xuexin Liu, Long Huang, Yunqing Chen, Yufei Zhang, Zhikang Lin, Rui Wang

In this paper, we propose a novel theory to find redundant information in three-dimensional tensors, namely Quantified Similarity between Feature Maps (QSFM), and utilize this theory to guide the filter pruning procedure.

Variational Gaussian Topic Model with Invertible Neural Projections

no code implementations21 May 2021 Rui Wang, Deyu Zhou, Yuxuan Xiong, Haiping Huang

Based on the variational auto-encoder, the proposed VaGTM models each topic with a multivariate Gaussian in decoder to incorporate word relatedness.

Topic Models Word Embeddings

Cross-domain Contrastive Learning for Unsupervised Domain Adaptation

no code implementations10 Jun 2021 Rui Wang, Zuxuan Wu, Zejia Weng, Jingjing Chen, Guo-Jun Qi, Yu-Gang Jiang

Unsupervised domain adaptation (UDA) aims to transfer knowledge learned from a fully-labeled source domain to a different unlabeled target domain.

Clustering Contrastive Learning +3

Advances and Challenges in Unsupervised Neural Machine Translation

no code implementations EACL 2021 Rui Wang, Hai Zhao

Unsupervised cross-lingual language representation initialization methods, together with mechanisms such as denoising and back-translation, have advanced unsupervised neural machine translation (UNMT), which has achieved impressive results.

Denoising Machine Translation +1

Chunk-based Chinese Spelling Check with Global Optimization

no code implementations Findings of the Association for Computational Linguistics 2020 Zuyi Bao, Chen Li, Rui Wang

Chinese spelling check is a challenging task due to the characteristics of the Chinese language, such as the large character set, no word boundary, and short word length.

Optical Character Recognition Optical Character Recognition (OCR) +1

A New Channel Estimation Strategy in Intelligent Reflecting Surface Assisted Networks

no code implementations22 Jun 2021 Rui Wang, Liang Liu, Shuowen Zhang, Changyuan Yu

Specifically, in Phase I, the correlation coefficients between the channels of a typical BS antenna and those of the other antennas are estimated; while in Phase II, the cascaded channel of the typical antenna is estimated.

Physics-Guided Deep Learning for Dynamical Systems: A Survey

no code implementations2 Jul 2021 Rui Wang, Rose Yu

Modeling complex physical dynamics is a fundamental task in science and engineering.

A Survey on Low-Resource Neural Machine Translation

no code implementations9 Jul 2021 Rui Wang, Xu Tan, Renqian Luo, Tao Qin, Tie-Yan Liu

Neural approaches have achieved state-of-the-art accuracy on machine translation but suffer from the high cost of collecting large scale parallel data.

Low-Resource Neural Machine Translation NMT +1

MINERVAS: Massive INterior EnviRonments VirtuAl Synthesis

no code implementations13 Jul 2021 Haocheng Ren, Hao Zhang, Jia Zheng, Jiaxiang Zheng, Rui Tang, Yuchi Huo, Hujun Bao, Rui Wang

With the rapid development of data-driven techniques, data has played an essential role in various computer vision tasks.

2D Semantic Segmentation Depth Estimation +1

Accelerating Edge Intelligence via Integrated Sensing and Communication

no code implementations20 Jul 2021 Tong Zhang, Shuai Wang, Guoliang Li, Fan Liu, Guangxu Zhu, Rui Wang

Conventionally, the sensing and communication stages are executed sequentially, which results in excessive amount of dataset generation and uploading time.

Integrated Sensing and Communication from Learning Perspective: An SDP3 Approach

no code implementations20 Jul 2021 Guoliang Li, Shuai Wang, Jie Li, Rui Wang, Fan Liu, Xiaohui Peng, Tony Xiao Han, Chengzhong Xu

Characterizing the sensing and communication performance tradeoff in integrated sensing and communication (ISAC) systems is challenging in the applications of learning-based human motion recognition.

Cross-lingual Transferring of Pre-trained Contextualized Language Models

no code implementations27 Jul 2021 Zuchao Li, Kevin Parnow, Hai Zhao, Zhuosheng Zhang, Rui Wang, Masao Utiyama, Eiichiro Sumita

Though the pre-trained contextualized language model (PrLM) has made a significant impact on NLP, training PrLMs in languages other than English can be impractical for two reasons: other languages often lack corpora sufficient for training powerful PrLMs, and because of the commonalities among human languages, computationally expensive PrLM training for different languages is somewhat redundant.

Language Modelling Machine Translation +1

Discriminating modelling approaches for Point in Time Economic Scenario Generation

no code implementations19 Aug 2021 Rui Wang

We introduce the notion of Point in Time Economic Scenario Generation (PiT ESG) with a clear mathematical problem formulation to unify and compare economic scenario generation approaches conditional on forward looking market data.

Benchmarking

PIVODL: Privacy-preserving vertical federated learning over distributed labels

no code implementations25 Aug 2021 Hangyu Zhu, Rui Wang, Yaochu Jin, Kaitai Liang

Federated learning (FL) is an emerging privacy preserving machine learning protocol that allows multiple devices to collaboratively train a shared global model without revealing their private local data.

Privacy Preserving Vertical Federated Learning

A Multimodal Framework for Video Ads Understanding

no code implementations29 Aug 2021 Zejia Weng, Lingchen Meng, Rui Wang, Zuxuan Wu, Yu-Gang Jiang

There is a growing trend in placing video advertisements on social platforms for online marketing, which demands automatic approaches to understand the contents of advertisements effectively.

Marketing Optical Character Recognition +5

Unit-Modulus Wireless Federated Learning Via Penalty Alternating Minimization

no code implementations31 Aug 2021 Shuai Wang, Dachuan Li, Rui Wang, Qi Hao, Yik-Chung Wu, Derrick Wing Kwan Ng

Wireless federated learning (FL) is an emerging machine learning paradigm that trains a global parametric model from distributed datasets via wireless communications.

Federated Learning

Emerging vaccine-breakthrough SARS-CoV-2 variants

no code implementations9 Sep 2021 Rui Wang, Jiahui Chen, Yuta Hozumi, Changchuan Yin, Guo-Wei Wei

The molecular mechanism underlying such surge is elusive due to 4, 653 non-degenerate mutations on the spike protein, which is the target of most COVID-19 vaccines.

Topological Data Analysis

Cross Modification Attention Based Deliberation Model for Image Captioning

no code implementations17 Sep 2021 Zheng Lian, Yanan Zhang, Haichang Li, Rui Wang, Xiaohui Hu

The conventional encoder-decoder framework for image captioning generally adopts a single-pass decoding process, which predicts the target descriptive sentence word by word in temporal order.

Descriptive Image Captioning +1

Review of the mechanisms of SARS-CoV-2 evolution and transmission

no code implementations15 Sep 2021 Jiahui Chen, Rui Wang, Guo-Wei Wei

We anticipate that viral evolution will combine RBD co-mutations at these two sites, creating future variants that are tens of times more infectious than the original SARS-CoV-2.

PreDet: Large-Scale Weakly Supervised Pre-Training for Detection

no code implementations ICCV 2021 Vignesh Ramanathan, Rui Wang, Dhruv Mahajan

State-of-the-art object detection approaches typically rely on pre-trained classification models to achieve better performance and faster convergence.

Classification Contrastive Learning +3

Testing-Time Adaptation through Online Normalization Estimation

no code implementations29 Sep 2021 Xuefeng Hu, Mustafa Uzunbas, Bor-Chun Chen, Rui Wang, Ashish Shah, Ram Nevatia, Ser-Nam Lim

We present a simple and effective way to estimate the batch-norm statistics during test time, to fast adapt a source model to target test samples.

Test-time Adaptation Unsupervised Domain Adaptation +1

FEVERLESS: Fast and Secure Vertical Federated Learning based on XGBoost for Decentralized Labels

no code implementations29 Sep 2021 Rui Wang, Oğuzhan Ersoy, Hangyu Zhu, Yaochu Jin, Kaitai Liang

Vertical Federated Learning (VFL) enables multiple clients to collaboratively train a global model over vertically partitioned data without revealing private local information.

Vertical Federated Learning

Multi-View Self-Attention Based Transformer for Speaker Recognition

no code implementations11 Oct 2021 Rui Wang, Junyi Ao, Long Zhou, Shujie Liu, Zhihua Wei, Tom Ko, Qing Li, Yu Zhang

In this work, we propose a novel multi-view self-attention mechanism and present an empirical study of different Transformer variants with or without the proposed attention mechanism for speaker recognition.

Speaker Recognition

Differential Motion Evolution for Fine-Grained Motion Deformation in Unsupervised Image Animation

no code implementations9 Oct 2021 Peirong Liu, Rui Wang, Xuefei Cao, Yipin Zhou, Ashish Shah, Ser-Nam Lim

Key findings are twofold: (1) by capturing the motion transfer with an ordinary differential equation (ODE), it helps to regularize the motion field, and (2) by utilizing the source image itself, we are able to inpaint occluded/missing regions arising from large motion changes.

Image Animation Motion Estimation

Tackling the Imbalance for GNNs

no code implementations17 Oct 2021 Rui Wang, Weixuan Xiong, Qinghu Hou, Ou wu

Different from deep neural networks for non-graph data classification, graph neural networks (GNNs) leverage the information exchange between nodes (or samples) when representing nodes.

Classification

Entity Relation Extraction as Dependency Parsing in Visually Rich Documents

no code implementations EMNLP 2021 Yue Zhang, Bo Zhang, Rui Wang, Junjie Cao, Chen Li, Zuyi Bao

Previous works on key information extraction from visually rich documents (VRDs) mainly focus on labeling the text within each bounding box (i. e., semantic entity), while the relations in-between are largely unexplored.

Dependency Parsing Entity Linking +3

A Geometry-Based Stochastic Model for Truck Communication Channels in Freeway Scenarios

no code implementations20 Oct 2021 Chen Huang, Rui Wang, Cheng-Xiang Wang, Pan Tang, Andreas F. Molisch

We validate this model by contrasting the root-mean-square delay spread and the angular spreads of departure/arrival derived from the channel model with the outcomes directly derived from the measurements.

Collision Avoidance

MixNorm: Test-Time Adaptation Through Online Normalization Estimation

no code implementations21 Oct 2021 Xuefeng Hu, Gokhan Uzunbas, Sirius Chen, Rui Wang, Ashish Shah, Ram Nevatia, Ser-Nam Lim

We present a simple and effective way to estimate the batch-norm statistics during test time, to fast adapt a source model to target test samples.

Test-time Adaptation Unsupervised Domain Adaptation +1

Unsupervised Paraphrasing Consistency Training for Low Resource Named Entity Recognition

no code implementations EMNLP 2021 Rui Wang, Ricardo Henao

Unsupervised consistency training is a way of semi-supervised learning that encourages consistency in model predictions between the original and augmented data.

Data Augmentation Low Resource Named Entity Recognition +4

Chinese Grammatical Error Diagnosis with Graph Convolution Network and Multi-task Learning

no code implementations AACL (NLP-TEA) 2020 Yikang Luo, Zuyi Bao, Chen Li, Rui Wang

For the correction subtask, we utilize the masked language model, the seq2seq model and the spelling check model to generate corrections based on the detection results.

Language Modelling Multi-Task Learning +1

Syntax in End-to-End Natural Language Processing

no code implementations EMNLP (ACL) 2021 Hai Zhao, Rui Wang, Kehai Chen

This tutorial surveys the latest technical progress of syntactic parsing and the role of syntax in end-to-end natural language processing (NLP) tasks, in which semantic role labeling (SRL) and machine translation (MT) are the representative NLP tasks that have always been beneficial from informative syntactic clues since a long time ago, though the advance from end-to-end deep learning models shows new results.

Machine Translation NMT +2

ProSTformer: Pre-trained Progressive Space-Time Self-attention Model for Traffic Flow Forecasting

no code implementations3 Nov 2021 Xiao Yan, Xianghua Gan, Jingjing Tang, Rui Wang

When pre-trained on the big scale datasets and transferred to the medium and small scale datasets, ProSTformer achieves a significant enhancement and behaves best.

Management

Omicron (B.1.1.529): Infectivity, vaccine breakthrough, and antibody resistance

no code implementations1 Dec 2021 Jiahui Chen, Rui Wang, Nancy Benovich Gilby, Guo-Wei Wei

The latest severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant Omicron (B. 1. 1. 529) has ushered panic responses around the world due to its contagious and vaccine escape mutations.

Gram-SLD: Automatic Self-labeling and Detection for Instance Objects

no code implementations7 Dec 2021 Rui Wang, Chengtun Wu, Jiawen Xin, Liang Zhang

Instance object detection plays an important role in intelligent monitoring, visual navigation, human-computer interaction, intelligent services and other fields.

Object object-detection +2

Bayesian User Localization and Tracking for Reconfigurable Intelligent Surface Aided MIMO Systems

no code implementations9 Dec 2021 Boyu Teng, Xiaojun Yuan, Rui Wang, Shi Jin

In this paper, we study the user localization and tracking problem in the reconfigurable intelligent surface (RIS) aided multiple-input multiple-output (MIMO) system, where a multi-antenna base station (BS) and multiple RISs are deployed to assist the localization and tracking of a multi-antenna user.

Evaluation of Four Black-box Adversarial Attacks and Some Query-efficient Improvement Analysis

no code implementations13 Jan 2022 Rui Wang

With the fast development of machine learning technologies, deep learning models have been deployed in almost every aspect of everyday life.

Adversarial Attack

Collaborative Representation for SPD Matrices with Application to Image-Set Classification

no code implementations22 Jan 2022 Li Chu, Rui Wang, Xiao-Jun Wu

Recent advances illustrate that how to effectively model these nonlinear variational information and learn invariant representations is an open challenge in the community of computer vision and pattern recognition To this end, we try to design a new algorithm to handle this problem.

On the Effectiveness of Pinyin-Character Dual-Decoding for End-to-End Mandarin Chinese ASR

no code implementations26 Jan 2022 Zhao Yang, Dianwen Ng, Xiao Fu, Liping Han, Wei Xi, Rui Wang, Rui Jiang, Jizhong Zhao

Based on the above intuition, we first investigate types of end-to-end encoder-decoder based models in the single-input dual-output (SIDO) multi-task framework, after which a novel asynchronous decoding with fuzzy Pinyin sampling method is proposed according to the one-to-one correspondence characteristics between Pinyin and Character.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +2

More is Better (Mostly): On the Backdoor Attacks in Federated Graph Neural Networks

no code implementations7 Feb 2022 Jing Xu, Rui Wang, Stefanos Koffas, Kaitai Liang, Stjepan Picek

To further explore the properties of two backdoor attacks in Federated GNNs, we evaluate the attack performance for a different number of clients, trigger sizes, poisoning intensities, and trigger densities.

Federated Learning Privacy Preserving

Powerful Graph Convolutioal Networks with Adaptive Propagation Mechanism for Homophily and Heterophily

no code implementations27 Dec 2021 Tao Wang, Rui Wang, Di Jin, Dongxiao He, Yuxiao Huang

To address this problem, in this paper we design a novel propagation mechanism, which can automatically change the propagation and aggregation process according to homophily or heterophily between node pairs.

Attribute

VU-BERT: A Unified framework for Visual Dialog

no code implementations22 Feb 2022 Tong Ye, Shijing Si, Jianzong Wang, Rui Wang, Ning Cheng, Jing Xiao

The visual dialog task attempts to train an agent to answer multi-turn questions given an image, which requires the deep understanding of interactions between the image and dialog history.

Language Modelling Masked Language Modeling +2

Normal and Visibility Estimation of Human Face from a Single Image

no code implementations9 Mar 2022 Fuzhi Zhong, Rui Wang, Yuchi Huo, Hujun Bao

Recent work on the intrinsic image of humans starts to consider the visibility of incident illumination and encodes the light transfer function by spherical harmonics.

Efficient conditioned face animation using frontally-viewed embedding

no code implementations16 Mar 2022 Maxime Oquab, Daniel Haziza, Ludovic Schwartz, Tao Xu, Katayoun Zand, Rui Wang, Peirong Liu, Camille Couprie

As the quality of few shot facial animation from landmarks increases, new applications become possible, such as ultra low bandwidth video chat compression with a high degree of realism.

An Interactive Image-based Modeling System

no code implementations28 Mar 2022 Zhi He, Rui Wang, Wei Hua, Yuchi Huo

This paper propose a interactive 3D modeling method and corresponding system based on single or multiple uncalibrated images.

Camera Calibration

Passive Motion Detection via mmWave Communication System

no code implementations28 Mar 2022 Jie Li, Chao Yu, Yan Luo, Yifei Sun, Rui Wang

Relying on the passive sensing system, a dataset of received signals, where three types of hand gestures are sensed, is collected by using Line-of-Sight (LoS) and Non-Line-of-Sight (NLoS) paths as the reference channel respectively.

Hand Gesture Recognition Hand-Gesture Recognition +1

Accelerating Federated Edge Learning via Topology Optimization

no code implementations1 Apr 2022 Shanfeng Huang, Zezhong Zhang, Shuai Wang, Rui Wang, Kaibin Huang

In this paper, a novel topology-optimized federated edge learning (TOFEL) scheme is proposed to tackle the heterogeneity issue in federated learning and to improve the communication-and-computation efficiency.

3D Object Detection Federated Learning +3

Deep Reinforcement Learning for Orienteering Problems Based on Decomposition

no code implementations25 Apr 2022 Wei Liu, Tao Zhang, Rui Wang, Kaiwen Li, Wenhua Li, Kang Yang

A dynamic pointer network (DYPN) is introduced as the TSP solver, which takes city locations as inputs and immediately outputs a permutation of nodes.

reinforcement-learning Reinforcement Learning (RL) +1

Persistent Laplacian projected Omicron BA.4 and BA.5 to become new dominating variants

no code implementations1 May 2022 Jiahui Chen, Yuchi Qiu, Rui Wang, Guo-Wei Wei

In particular, BA. 4 and BA. 5 are about 36\% more infectious than BA. 2 and are projected to become new dominating variants by natural selection.

Synchronous Refinement for Neural Machine Translation

no code implementations Findings (ACL) 2022 Kehai Chen, Masao Utiyama, Eiichiro Sumita, Rui Wang, Min Zhang

Machine translation typically adopts an encoder-to-decoder framework, in which the decoder generates the target sentence word-by-word in an auto-regressive manner.

Machine Translation Sentence +1

Few-Shot Class-Incremental Learning for Named Entity Recognition

no code implementations ACL 2022 Rui Wang, Tong Yu, Handong Zhao, Sungchul Kim, Subrata Mitra, Ruiyi Zhang, Ricardo Henao

In this work, we study a more challenging but practical problem, i. e., few-shot class-incremental learning for NER, where an NER model is trained with only few labeled samples of the new classes, without forgetting knowledge of the old ones.

Few-Shot Class-Incremental Learning Incremental Learning +3

TRT-ViT: TensorRT-oriented Vision Transformer

no code implementations19 May 2022 Xin Xia, Jiashi Li, Jie Wu, Xing Wang, Xuefeng Xiao, Min Zheng, Rui Wang

We revisit the existing excellent Transformers from the perspective of practical application.

Image Classification object-detection +2

Hyperspectral Unmixing Based on Nonnegative Matrix Factorization: A Comprehensive Review

no code implementations20 May 2022 Xin-Ru Feng, Heng-Chao Li, Rui Wang, Qian Du, Xiuping Jia, Antonio Plaza

Hyperspectral unmixing has been an important technique that estimates a set of endmembers and their corresponding abundances from a hyperspectral image (HSI).

Hyperspectral Unmixing

An Indoor Environment Sensing and Localization System via mmWave Phased Array

no code implementations7 Jun 2022 Yifei Sun, Jie Li, Tong Zhang, Rui Wang, Xiaohui Peng, Tony Xiao Han, Haisheng Tan

At the end, we show that the reconstructed room layout can be utilized to locate a mobile device according to its AoA spectrum, even with single access point.

DreamNet: A Deep Riemannian Network based on SPD Manifold Learning for Visual Classification

no code implementations16 Jun 2022 Rui Wang, Xiao-Jun Wu, Ziheng Chen, Tianyang Xu, Josef Kittler

Image set-based visual classification methods have achieved remarkable performance, via characterising the image set in terms of a non-singular covariance matrix on a symmetric positive definite (SPD) manifold.

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