no code implementations • 27 May 2024 • Baoren Xiao, Hao Ni, Weixin Yang
This approach, utilizing an innovative generative loss function, termly the regression loss, reformulates the generator training as a regression task and enables the generator training by minimizing the mean squared error between the discriminator's output of real data and the expected discriminator of fake data.
1 code implementation • 22 Mar 2024 • Lei Jiang, Weixin Yang, Xin Zhang, Hao Ni
Skeleton-based action recognition (SAR) in videos is an important but challenging task in computer vision.
1 code implementation • 25 Oct 2021 • Shujian Liao, Terry Lyons, Weixin Yang, Kevin Schlegel, Hao Ni
In this paper, we propose a novel module, namely Logsig-RNN, which is the combination of the log-signature layer and recurrent type neural networks (RNNs).
Action Recognition In Videos Skeleton Based Action Recognition +3
4 code implementations • 26 Jun 2020 • Cristopher Salvi, Thomas Cass, James Foster, Terry Lyons, Weixin Yang
Recently, there has been an increased interest in the development of kernel methods for learning with sequential data.
no code implementations • 22 Aug 2019 • Shujian Liao, Terry Lyons, Weixin Yang, Hao Ni
We illustrate the approach by approximating the unknown functional as a controlled differential equation.
Ranked #61 on Skeleton Based Action Recognition on NTU RGB+D 120
1 code implementation • 17 Nov 2018 • Chenyang Li, Xin Zhang, Lufan Liao, Lianwen Jin, Weixin Yang
In this paper, we first leverage a robust feature descriptor, path signature (PS), and propose three PS features to explicitly represent the spatial and temporal motion characteristics, i. e., spatial PS (S_PS), temporal PS (T_PS) and temporal spatial PS (T_S_PS).
Ranked #1 on Gesture Recognition on ChaLearn 2013
no code implementations • 13 Jul 2017 • Weixin Yang, Terry Lyons, Hao Ni, Cordelia Schmid, Lianwen Jin
To this end, we regard the evolving landmark data as a high-dimensional path and apply non-linear path signature techniques to provide an expressive, robust, non-linear, and interpretable representation for the sequential events.
no code implementations • 19 May 2017 • Songxuan Lai, Lianwen Jin, Weixin Yang
Inspired by the great success of recurrent neural networks (RNNs) in sequential modeling, we introduce a novel RNN system to improve the performance of online signature verification.
no code implementations • 26 Feb 2017 • Xuefeng Xiao, Lianwen Jin, Yafeng Yang, Weixin Yang, Jun Sun, Tianhai Chang
We design a nine-layer CNN for HCCR consisting of 3, 755 classes, and devise an algorithm that can reduce the networks computational cost by nine times and compress the network to 1/18 of the original size of the baseline model, with only a 0. 21% drop in accuracy.
no code implementations • 24 Feb 2017 • Songxuan Lai, Lianwen Jin, Weixin Yang
This paper presents an investigation of several techniques that increase the accuracy of online handwritten Chinese character recognition (HCCR).
no code implementations • 20 Aug 2015 • Weixin Yang, Lianwen Jin, Manfei Liu
A key feature of DeepWriterID is a new method we are proposing, called DropSegment.
no code implementations • 28 May 2015 • Weixin Yang, Lianwen Jin, Zecheng Xie, Ziyong Feng
Deep convolutional neural networks (DCNNs) have achieved great success in various computer vision and pattern recognition applications, including those for handwritten Chinese character recognition (HCCR).
no code implementations • 20 May 2015 • Weixin Yang, Lianwen Jin, DaCheng Tao, Zecheng Xie, Ziyong Feng
Inspired by the theory of Leitners learning box from the field of psychology, we propose DropSample, a new method for training deep convolutional neural networks (DCNNs), and apply it to large-scale online handwritten Chinese character recognition (HCCR).
no code implementations • 19 May 2015 • Weixin Yang, Lianwen Jin, Manfei Liu
The results reveal that the path-signature feature is useful for writer identification, and the proposed DropStroke technique enhances the generalization and significantly improves performance.