Search Results for author: Jinwen Ma

Found 31 papers, 13 papers with code

Towards a Unified Theoretical Understanding of Non-contrastive Learning via Rank Differential Mechanism

1 code implementation4 Mar 2023 Zhijian Zhuo, Yifei Wang, Jinwen Ma, Yisen Wang

In this work, we propose a unified theoretical understanding for existing variants of non-contrastive learning.

Contrastive Learning

PDO-s3DCNNs: Partial Differential Operator Based Steerable 3D CNNs

1 code implementation7 Aug 2022 Zhengyang Shen, Tao Hong, Qi She, Jinwen Ma, Zhouchen Lin

Steerable models can provide very general and flexible equivariance by formulating equivariance requirements in the language of representation theory and feature fields, which has been recognized to be effective for many vision tasks.

Retrieval

Criterion-based Heterogeneous Collaborative Filtering for Multi-behavior Implicit Recommendation

1 code implementation25 May 2021 Xiao Luo, Daqing Wu, Yiyang Gu, Chong Chen, Luchen Liu, Jinwen Ma, Ming Zhang, Minghua Deng, Jianqiang Huang, Xian-Sheng Hua

Besides, CHCF integrates criterion learning and user preference learning into a unified framework, which can be trained jointly for the interaction prediction of the target behavior.

Collaborative Filtering Metric Learning +1

Deep Unsupervised Hashing by Distilled Smooth Guidance

no code implementations13 May 2021 Xiao Luo, Zeyu Ma, Daqing Wu, Huasong Zhong, Chong Chen, Jinwen Ma, Minghua Deng

Hashing has been widely used in approximate nearest neighbor search for its storage and computational efficiency.

Clustering Computational Efficiency +1

PDO-eS2CNNs: Partial Differential Operator Based Equivariant Spherical CNNs

no code implementations8 Apr 2021 Zhengyang Shen, Tiancheng Shen, Zhouchen Lin, Jinwen Ma

Spherical signals exist in many applications, e. g., planetary data, LiDAR scans and digitalization of 3D objects, calling for models that can process spherical data effectively.

Translation

HRN: A Holistic Approach to One Class Learning

1 code implementation NeurIPS 2020 Wenpeng Hu, Mengyu Wang, Qi Qin, Jinwen Ma, Bing Liu

Existing neural network based one-class learning methods mainly use various forms of auto-encoders or GAN style adversarial training to learn a latent representation of the given one class of data.

Anomaly Detection Image Classification

CIMON: Towards High-quality Hash Codes

no code implementations15 Oct 2020 Xiao Luo, Daqing Wu, Zeyu Ma, Chong Chen, Minghua Deng, Jinwen Ma, Zhongming Jin, Jianqiang Huang, Xian-Sheng Hua

However, due to the inefficient representation ability of the pre-trained model, many false positives and negatives in local semantic similarity will be introduced and lead to error propagation during the hash code learning.

Computational Efficiency Image Augmentation +4

PDO-eConvs: Partial Differential Operator Based Equivariant Convolutions

3 code implementations ICML 2020 Zhengyang Shen, Lingshen He, Zhouchen Lin, Jinwen Ma

In implementation, we discretize the system using the numerical schemes of PDOs, deriving approximately equivariant convolutions (PDO-eConvs).

Image Classification Rotated MNIST

Real-time Universal Style Transfer on High-resolution Images via Zero-channel Pruning

no code implementations16 Jun 2020 Jie An, Tao Li, Hao-Zhi Huang, Li Shen, Xuan Wang, Yongyi Tang, Jinwen Ma, Wei Liu, Jiebo Luo

Extracting effective deep features to represent content and style information is the key to universal style transfer.

Style Transfer

DefenseVGAE: Defending against Adversarial Attacks on Graph Data via a Variational Graph Autoencoder

1 code implementation16 Jun 2020 Ao Zhang, Jinwen Ma

Graph neural networks (GNNs) achieve remarkable performance for tasks on graph data.

Multi-Label Classification with Label Graph Superimposing

2 code implementations21 Nov 2019 Ya Wang, Dongliang He, Fu Li, Xiang Long, Zhichao Zhou, Jinwen Ma, Shilei Wen

In this paper, we propose a label graph superimposing framework to improve the conventional GCN+CNN framework developed for multi-label recognition in the following two aspects.

Attribute Classification +3

Learning from Positive and Unlabeled Data with Adversarial Training

no code implementations25 Sep 2019 Wenpeng Hu, Ran Le, Bing Liu, Feng Ji, Haiqing Chen, Dongyan Zhao, Jinwen Ma, Rui Yan

Positive-unlabeled (PU) learning learns a binary classifier using only positive and unlabeled examples without labeled negative examples.

Fast Universal Style Transfer for Artistic and Photorealistic Rendering

no code implementations6 Jul 2019 Jie An, Haoyi Xiong, Jiebo Luo, Jun Huan, Jinwen Ma

Given a pair of images as the source of content and the reference of style, existing solutions usually first train an auto-encoder (AE) to reconstruct the image using deep features and then embeds pre-defined style transfer modules into the AE reconstruction procedure to transfer the style of the reconstructed image through modifying the deep features.

Style Transfer

StyleNAS: An Empirical Study of Neural Architecture Search to Uncover Surprisingly Fast End-to-End Universal Style Transfer Networks

no code implementations6 Jun 2019 Jie An, Haoyi Xiong, Jinwen Ma, Jiebo Luo, Jun Huan

Finally compared to existing universal style transfer networks for photorealistic rendering such as PhotoWCT that stacks multiple well-trained auto-encoders and WCT transforms in a non-end-to-end manner, the architectures designed by StyleNAS produce better style-transferred images with details preserving, using a tiny number of operators/parameters, and enjoying around 500x inference time speed-up.

Image Classification Neural Architecture Search +4

GSN: A Graph-Structured Network for Multi-Party Dialogues

1 code implementation31 May 2019 Wenpeng Hu, Zhangming Chan, Bing Liu, Dongyan Zhao, Jinwen Ma, Rui Yan

Existing neural models for dialogue response generation assume that utterances are sequentially organized.

Response Generation

The Anisotropic Noise in Stochastic Gradient Descent: Its Behavior of Escaping from Minima and Regularization Effects

no code implementations ICLR 2019 Zhanxing Zhu, Jingfeng Wu, Bing Yu, Lei Wu, Jinwen Ma

Along this line, we theoretically study a general form of gradient based optimization dynamics with unbiased noise, which unifies SGD and standard Langevin dynamics.

T-SVD Based Non-convex Tensor Completion and Robust Principal Component Analysis

no code implementations23 Apr 2019 Tao Li, Jinwen Ma

Tensor completion and robust principal component analysis have been widely used in machine learning while the key problem relies on the minimization of a tensor rank that is very challenging.

Denoising Image Inpainting

Spatial-Aware Non-Local Attention for Fashion Landmark Detection

no code implementations11 Mar 2019 Yixin Li, Shengqin Tang, Yun Ye, Jinwen Ma

Fashion landmark detection is a challenging task even using the current deep learning techniques, due to the large variation and non-rigid deformation of clothes.

Fine-Grained Image Classification

Tangent-Normal Adversarial Regularization for Semi-supervised Learning

1 code implementation CVPR 2019 Bing Yu, Jingfeng Wu, Jinwen Ma, Zhanxing Zhu

The proposed TNAR is composed by two complementary parts, the tangent adversarial regularization (TAR) and the normal adversarial regularization (NAR).

TAR

The Anisotropic Noise in Stochastic Gradient Descent: Its Behavior of Escaping from Sharp Minima and Regularization Effects

1 code implementation ICLR 2019 Zhanxing Zhu, Jingfeng Wu, Bing Yu, Lei Wu, Jinwen Ma

Along this line, we study a general form of gradient based optimization dynamics with unbiased noise, which unifies SGD and standard Langevin dynamics.

Topic-Based Question Generation

no code implementations ICLR 2018 Wenpeng Hu, Bing Liu, Rui Yan, Dongyan Zhao, Jinwen Ma

In the paper, we propose a new question generation problem, which also requires the input of a target topic in addition to a piece of descriptive text.

Chatbot Descriptive +3

Combination Features and Models for Human Detection

no code implementations CVPR 2015 Yunsheng Jiang, Jinwen Ma

This paper presents effective combination models with certain combination features for human detection.

Human Detection

Cannot find the paper you are looking for? You can Submit a new open access paper.