Search Results for author: Jun Du

Found 44 papers, 11 papers with code

A Tree-Structured Decoder for Image-to-Markup Generation

1 code implementation ICML 2020 Jianshu Zhang, Jun Du, Yongxin Yang, Yi-Zhe Song, Si Wei, Li-Rong Dai

Recent encoder-decoder approaches typically employ string decoders to convert images into serialized strings for image-to-markup.

A Study of Designing Compact Audio-Visual Wake Word Spotting System Based on Iterative Fine-Tuning in Neural Network Pruning

no code implementations17 Feb 2022 Hengshun Zhou, Jun Du, Chao-Han Huck Yang, Shifu Xiong, Chin-Hui Lee

Audio-only-based wake word spotting (WWS) is challenging under noisy conditions due to environmental interference in signal transmission.

Network Pruning

The USTC-Ximalaya system for the ICASSP 2022 multi-channel multi-party meeting transcription (M2MeT) challenge

no code implementations10 Feb 2022 Maokui He, Xiang Lv, Weilin Zhou, JingJing Yin, Xiaoqi Zhang, Yuxuan Wang, Shutong Niu, Yuhang Cao, Heng Lu, Jun Du, Chin-Hui Lee

We propose two improvements to target-speaker voice activity detection (TS-VAD), the core component in our proposed speaker diarization system that was submitted to the 2022 Multi-Channel Multi-Party Meeting Transcription (M2MeT) challenge.

Action Detection Activity Detection +1

Underwater Differential Game: Finite-Time Target Hunting Task with Communication Delay

no code implementations1 Feb 2022 Wei Wei, Jingjing Wang, Jun Du, Zhengru Fang, Chunxiao Jiang, Yong Ren

Simulations show that underwater disturbances have a large impact on the system considering communication delay.

reinforcement-learning

SDN-based Resource Allocation in Edge and Cloud Computing Systems: An Evolutionary Stackelberg Differential Game Approach

no code implementations26 Sep 2021 Jun Du, Chunxiao Jiang, Abderrahim Benslimane, Song Guo, Yong Ren

Based on this dynamic access model, a Stackelberg differential game based cloud computing resource sharing mechanism is proposed to facilitate the resource trading between the cloud computing service provider (CCP) and different edge computing service providers (ECPs).

Edge-computing

Target-speaker Voice Activity Detection with Improved I-Vector Estimation for Unknown Number of Speaker

no code implementations7 Aug 2021 Maokui He, Desh Raj, Zili Huang, Jun Du, Zhuo Chen, Shinji Watanabe

Target-speaker voice activity detection (TS-VAD) has recently shown promising results for speaker diarization on highly overlapped speech.

Action Detection Activity Detection +3

Split, embed and merge: An accurate table structure recognizer

no code implementations12 Jul 2021 Zhenrong Zhang, Jianshu Zhang, Jun Du

However, due to the complexity and diversity in their structure and style, it is very difficult to parse the tabular data into the structured format which machines can understand easily, especially for complex tables.

Separation Guided Speaker Diarization in Realistic Mismatched Conditions

no code implementations6 Jul 2021 Shu-Tong Niu, Jun Du, Lei Sun, Chin-Hui Lee

We propose a separation guided speaker diarization (SGSD) approach by fully utilizing a complementarity of speech separation and speaker clustering.

Speaker Diarization Speech Separation

Lip-reading with Hierarchical Pyramidal Convolution and Self-Attention

no code implementations28 Dec 2020 Hang Chen, Jun Du, Yu Hu, Li-Rong Dai, Chin-Hui Lee, Bao-Cai Yin

In this paper, we propose a novel deep learning architecture to improving word-level lip-reading.

Lip Reading

The Third DIHARD Diarization Challenge

2 code implementations2 Dec 2020 Neville Ryant, Prachi Singh, Venkat Krishnamohan, Rajat Varma, Kenneth Church, Christopher Cieri, Jun Du, Sriram Ganapathy, Mark Liberman

DIHARD III was the third in a series of speaker diarization challenges intended to improve the robustness of diarization systems to variability in recording equipment, noise conditions, and conversational domain.

Speaker Diarization

Frequency Gating: Improved Convolutional Neural Networks for Speech Enhancement in the Time-Frequency Domain

no code implementations8 Nov 2020 Koen Oostermeijer, Qing Wang, Jun Du

One of the strengths of traditional convolutional neural networks (CNNs) is their inherent translational invariance.

Frame Speech Enhancement

A Two-Stage Approach to Device-Robust Acoustic Scene Classification

1 code implementation3 Nov 2020 Hu Hu, Chao-Han Huck Yang, Xianjun Xia, Xue Bai, Xin Tang, Yajian Wang, Shutong Niu, Li Chai, Juanjuan Li, Hongning Zhu, Feng Bao, Yuanjun Zhao, Sabato Marco Siniscalchi, Yannan Wang, Jun Du, Chin-Hui Lee

To improve device robustness, a highly desirable key feature of a competitive data-driven acoustic scene classification (ASC) system, a novel two-stage system based on fully convolutional neural networks (CNNs) is proposed.

Acoustic Scene Classification Classification +3

A Noise-Aware Memory-Attention Network Architecture for Regression-Based Speech Enhancement

no code implementations25 Oct 2020 Yu-Xuan Wang, Jun Du, Li Chai, Chin-Hui Lee, Jia Pan

We propose a novel noise-aware memory-attention network (NAMAN) for regression-based speech enhancement, aiming at improving quality of enhanced speech in unseen noise conditions.

Frame Speech Enhancement

Correlating Subword Articulation with Lip Shapes for Embedding Aware Audio-Visual Speech Enhancement

no code implementations21 Sep 2020 Hang Chen, Jun Du, Yu Hu, Li-Rong Dai, Bao-Cai Yin, Chin-Hui Lee

We first extract visual embedding from lip frames using a pre-trained phone or articulation place recognizer for visual-only EASE (VEASE).

Speech Enhancement

On Mean Absolute Error for Deep Neural Network Based Vector-to-Vector Regression

no code implementations12 Aug 2020 Jun Qi, Jun Du, Sabato Marco Siniscalchi, Xiaoli Ma, Chin-Hui Lee

In this paper, we exploit the properties of mean absolute error (MAE) as a loss function for the deep neural network (DNN) based vector-to-vector regression.

Speech Enhancement

Analyzing Upper Bounds on Mean Absolute Errors for Deep Neural Network Based Vector-to-Vector Regression

no code implementations4 Aug 2020 Jun Qi, Jun Du, Sabato Marco Siniscalchi, Xiaoli Ma, Chin-Hui Lee

In this paper, we show that, in vector-to-vector regression utilizing deep neural networks (DNNs), a generalized loss of mean absolute error (MAE) between the predicted and expected feature vectors is upper bounded by the sum of an approximation error, an estimation error, and an optimization error.

Learning Theory Speech Enhancement

An Acoustic Segment Model Based Segment Unit Selection Approach to Acoustic Scene Classification with Partial Utterances

no code implementations31 Jul 2020 Hu Hu, Sabato Marco Siniscalchi, Yannan Wang, Xue Bai, Jun Du, Chin-Hui Lee

In contrast to building scene models with whole utterances, the ASM-removed sub-utterances, i. e., acoustic utterances without stop acoustic segments, are then used as inputs to the AlexNet-L back-end for final classification.

Acoustic Scene Classification Classification +4

Stroke Constrained Attention Network for Online Handwritten Mathematical Expression Recognition

no code implementations20 Feb 2020 Jia-Ming Wang, Jun Du, Jianshu Zhang

For single-modal HMER, SCAN first employs a CNN-GRU encoder to extract point-level features from input traces in online mode and employs a CNN encoder to extract pixel-level features from input images in offline mode, then use stroke constrained information to convert them into online and offline stroke-level features.

Joint Architecture and Knowledge Distillation in CNN for Chinese Text Recognition

no code implementations17 Dec 2019 Zi-Rui Wang, Jun Du

Finally, the knowledge distillation with multiple losses is adopted to improve performance of the compact CNN.

Handwritten Chinese Text Recognition Knowledge Distillation

Challenge of Spatial Cognition for Deep Learning

no code implementations30 Jul 2019 Xi Zhang, Xiaolin Wu, Jun Du

Given the success of the deep convolutional neural networks (DCNNs) in applications of visual recognition and classification, it would be tantalizing to test if DCNNs can also learn spatial concepts, such as straightness, convexity, left/right, front/back, relative size, aspect ratio, polygons, etc., from varied visual examples of these concepts that are simple and yet vital for spatial reasoning.

Adaptive Period Embedding for Representing Oriented Objects in Aerial Images

no code implementations22 Jun 2019 Yixing Zhu, Xueqing Wu, Jun Du

While almost all previous object detectors for aerial images directly regress the angle of objects, they use complex rules to calculate the angle, and their performance is limited by the rule design.

Object Detection In Aerial Images

The Second DIHARD Diarization Challenge: Dataset, task, and baselines

1 code implementation18 Jun 2019 Neville Ryant, Kenneth Church, Christopher Cieri, Alejandrina Cristia, Jun Du, Sriram Ganapathy, Mark Liberman

This paper introduces the second DIHARD challenge, the second in a series of speaker diarization challenges intended to improve the robustness of diarization systems to variation in recording equipment, noise conditions, and conversational domain.

Action Detection Activity Detection +3

Multi-Task Learning with High-Order Statistics for X-vector based Text-Independent Speaker Verification

no code implementations28 Mar 2019 Lanhua You, Wu Guo, LiRong Dai, Jun Du

The x-vector based deep neural network (DNN) embedding systems have demonstrated effectiveness for text-independent speaker verification.

Multi-Task Learning Text-Independent Speaker Verification

Deep Neural Network Embeddings with Gating Mechanisms for Text-Independent Speaker Verification

no code implementations28 Mar 2019 Lanhua You, Wu Guo, Li-Rong Dai, Jun Du

In this paper, gating mechanisms are applied in deep neural network (DNN) training for x-vector-based text-independent speaker verification.

Frame Text-Independent Speaker Verification

Deep Fusion: An Attention Guided Factorized Bilinear Pooling for Audio-video Emotion Recognition

no code implementations15 Jan 2019 Yuanyuan Zhang, Zi-Rui Wang, Jun Du

Although there is no consensus on a definition, human emotional states usually can be apperceived by auditory and visual systems.

Video Emotion Recognition

Writer-Aware CNN for Parsimonious HMM-Based Offline Handwritten Chinese Text Recognition

1 code implementation24 Dec 2018 Zi-Rui Wang, Jun Du, Jia-Ming Wang

Recently, the hybrid convolutional neural network hidden Markov model (CNN-HMM) has been introduced for offline handwritten Chinese text recognition (HCTR) and has achieved state-of-the-art performance.

Handwritten Chinese Text Recognition Language Modelling

TextMountain: Accurate Scene Text Detection via Instance Segmentation

no code implementations30 Nov 2018 Yixing Zhu, Jun Du

In inference stage, each pixel at the mountain foot needs to search the path to the mountaintop and this process can be efficiently completed in parallel, yielding the efficiency of our method compared with others.

Instance Segmentation Scene Text Detection +1

DenseRAN for Offline Handwritten Chinese Character Recognition

no code implementations13 Aug 2018 Wenchao Wang, Jianshu Zhang, Jun Du, Zi-Rui Wang, Yixing Zhu

Recently, great success has been achieved in offline handwritten Chinese character recognition by using deep learning methods.

Offline Handwritten Chinese Character Recognition

Parsimonious HMMs for Offline Handwritten Chinese Text Recognition

no code implementations13 Aug 2018 Wenchao Wang, Jun Du, Zi-Rui Wang

Recently, hidden Markov models (HMMs) have achieved promising results for offline handwritten Chinese text recognition.

Handwritten Chinese Text Recognition

Attention Based Fully Convolutional Network for Speech Emotion Recognition

1 code implementation5 Jun 2018 Yuanyuan Zhang, Jun Du, Zi-Rui Wang, Jianshu Zhang

In this paper, we present a novel attention based fully convolutional network for speech emotion recognition.

Speech Emotion Recognition Transfer Learning

Sliding Line Point Regression for Shape Robust Scene Text Detection

1 code implementation30 Jan 2018 Yixing Zhu, Jun Du

Specifically, we first generate the smallest rectangular box including the text with region proposal network (RPN), then isometrically regress the points on the edge of text by using the vertically and horizontally sliding lines.

Curved Text Detection Object Detection +1

Trajectory-based Radical Analysis Network for Online Handwritten Chinese Character Recognition

no code implementations22 Jan 2018 Jianshu Zhang, Yixing Zhu, Jun Du, Li-Rong Dai

The RNN decoder aims at generating the caption by detecting radicals and spatial structures through an attention model.

Multi-Scale Attention with Dense Encoder for Handwritten Mathematical Expression Recognition

2 code implementations5 Jan 2018 Jianshu Zhang, Jun Du, Li-Rong Dai

Handwritten mathematical expression recognition is a challenging problem due to the complicated two-dimensional structures, ambiguous handwriting input and variant scales of handwritten math symbols.

A GRU-based Encoder-Decoder Approach with Attention for Online Handwritten Mathematical Expression Recognition

1 code implementation4 Dec 2017 Jianshu Zhang, Jun Du, Li-Rong Dai

In this study, we present a novel end-to-end approach based on the encoder-decoder framework with the attention mechanism for online handwritten mathematical expression recognition (OHMER).

Radical analysis network for zero-shot learning in printed Chinese character recognition

no code implementations3 Nov 2017 Jianshu Zhang, Yixing Zhu, Jun Du, Li-Rong Dai

Chinese characters have a huge set of character categories, more than 20, 000 and the number is still increasing as more and more novel characters continue being created.

Zero-Shot Learning

Multi-Objective Learning and Mask-Based Post-Processing for Deep Neural Network Based Speech Enhancement

no code implementations21 Mar 2017 Yong Xu, Jun Du, Zhen Huang, Li-Rong Dai, Chin-Hui Lee

We propose a multi-objective framework to learn both secondary targets not directly related to the intended task of speech enhancement (SE) and the primary target of the clean log-power spectra (LPS) features to be used directly for constructing the enhanced speech signals.

Sound

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