Search Results for author: ZhiYuan Chen

Found 33 papers, 8 papers with code

Anomaly Detection of Particle Orbit in Accelerator using LSTM Deep Learning Technology

no code implementations28 Jan 2024 ZhiYuan Chen, Wei Lu, Radhika Bhong, Yimin Hu, Brian Freeman, Adam Carpenter

A stable, reliable, and controllable orbit lock system is crucial to an electron (or ion) accelerator because the beam orbit and beam energy instability strongly affect the quality of the beam delivered to experimental halls.

Anomaly Detection Fault Detection

A Survey on Large Language Model based Autonomous Agents

2 code implementations22 Aug 2023 Lei Wang, Chen Ma, Xueyang Feng, Zeyu Zhang, Hao Yang, Jingsen Zhang, ZhiYuan Chen, Jiakai Tang, Xu Chen, Yankai Lin, Wayne Xin Zhao, Zhewei Wei, Ji-Rong Wen

In this paper, we present a comprehensive survey of these studies, delivering a systematic review of the field of LLM-based autonomous agents from a holistic perspective.

Language Modelling Large Language Model

User Behavior Simulation with Large Language Model based Agents

1 code implementation5 Jun 2023 Lei Wang, Jingsen Zhang, Hao Yang, ZhiYuan Chen, Jiakai Tang, Zeyu Zhang, Xu Chen, Yankai Lin, Ruihua Song, Wayne Xin Zhao, Jun Xu, Zhicheng Dou, Jun Wang, Ji-Rong Wen

Simulating high quality user behavior data has always been a fundamental problem in human-centered applications, where the major difficulty originates from the intricate mechanism of human decision process.

Language Modelling Large Language Model +2

Estimating Continuous Muscle Fatigue For Multi-Muscle Coordinated Exercise: A Pilot Study

no code implementations30 Mar 2023 Chunzhi Yi, Baichun Wei, Wei Jin, Jianfei Zhu, Seungmin Rho, ZhiYuan Chen, Feng Jiang

Assessing the progression of muscle fatigue for daily exercises provides vital indicators for precise rehabilitation, personalized training dose, especially under the context of Metaverse.

MogaNet: Multi-order Gated Aggregation Network

6 code implementations7 Nov 2022 Siyuan Li, Zedong Wang, Zicheng Liu, Cheng Tan, Haitao Lin, Di wu, ZhiYuan Chen, Jiangbin Zheng, Stan Z. Li

Notably, MogaNet hits 80. 0\% and 87. 8\% accuracy with 5. 2M and 181M parameters on ImageNet-1K, outperforming ParC-Net and ConvNeXt-L, while saving 59\% FLOPs and 17M parameters, respectively.

3D Human Pose Estimation Image Classification +6

Student-centric Model of Learning Management System Activity and Academic Performance: from Correlation to Causation

no code implementations27 Oct 2022 Varun Mandalapu, Lujie Karen Chen, Sushruta Shetty, ZhiYuan Chen, Jiaqi Gong

Firstly, most of the current work is course-centered (i. e. models are built from data for a specific course) rather than student-centered; secondly, a vast majority of the models are correlational rather than causal.

Management

FaceVerse: a Fine-grained and Detail-controllable 3D Face Morphable Model from a Hybrid Dataset

1 code implementation CVPR 2022 Lizhen Wang, ZhiYuan Chen, Tao Yu, Chenguang Ma, Liang Li, Yebin Liu

In the coarse module, we generate a base parametric model from large-scale RGB-D images, which is able to predict accurate rough 3D face models in different genders, ages, etc.

2k 3D Face Reconstruction +1

HelixMO: Sample-Efficient Molecular Optimization in Scene-Sensitive Latent Space

no code implementations30 Nov 2021 ZhiYuan Chen, Xiaomin Fang, Zixu Hua, Yueyang Huang, Fan Wang, Hua Wu

Efficient exploration of the chemical space to search the candidate drugs that satisfy various constraints is a fundamental task of drug discovery.

Drug Discovery Efficient Exploration

GenURL: A General Framework for Unsupervised Representation Learning

1 code implementation27 Oct 2021 Siyuan Li, Zicheng Liu, Zelin Zang, Di wu, ZhiYuan Chen, Stan Z. Li

For example, dimension reduction methods, t-SNE, and UMAP optimize pair-wise data relationships by preserving the global geometric structure, while self-supervised learning, SimCLR, and BYOL focus on mining the local statistics of instances under specific augmentations.

Contrastive Learning Dimensionality Reduction +4

Video Person Re-identification using Attribute-enhanced Features

no code implementations16 Aug 2021 Tianrui Chai, ZhiYuan Chen, Annan Li, Jiaxin Chen, Xinyu Mei, Yunhong Wang

Video-based person re-identification (Re-ID) which aims to associate people across non-overlapping cameras using surveillance video is a challenging task.

Attribute Video-Based Person Re-Identification

Frequency Domain Convolutional Neural Network: Accelerated CNN for Large Diabetic Retinopathy Image Classification

no code implementations24 Jun 2021 Ee Fey Goh, ZhiYuan Chen, Wei Xiang Lim

The FDC and FDP layers are used to build a Frequency Domain Convolutional Neural Network (FDCNN) to accelerate the training of large images for DR classification.

Classification Image Classification

An Automated Knowledge Mining and Document Classification System with Multi-model Transfer Learning

no code implementations24 Jun 2021 Jia Wei Chong, ZhiYuan Chen, Mei Shin Oh

The performance of the proposed system has been evaluated by comparing with two robust baseline methods, BERT and BERT-CNN.

CoLA Document Classification +2

Automated Agriculture Commodity Price Prediction System with Machine Learning Techniques

no code implementations24 Jun 2021 ZhiYuan Chen, Howe Seng Goh, Kai Ling Sin, Kelly Lim, Nicole Ka Hei Chung, Xin Yu Liew

The intention of this research is to study and design an automated agriculture commodity price prediction system with novel machine learning techniques.

BIG-bench Machine Learning

IDEAL: Independent Domain Embedding Augmentation Learning

no code implementations21 May 2021 ZhiYuan Chen, Guang Yao, Wennan Ma, Lin Xu

Our IDEAL with MS loss also achieves the new state-of-the-art performance on three image retrieval benchmarks, \ie, \emph{Cars-196}, \emph{CUB-200}, and \emph{SOP}.

Image Retrieval Metric Learning +1

AutoMix: Unveiling the Power of Mixup for Stronger Classifiers

2 code implementations24 Mar 2021 Zicheng Liu, Siyuan Li, Di wu, Zihan Liu, ZhiYuan Chen, Lirong Wu, Stan Z. Li

Specifically, AutoMix reformulates the mixup classification into two sub-tasks (i. e., mixed sample generation and mixup classification) with corresponding sub-networks and solves them in a bi-level optimization framework.

Classification Data Augmentation +3

Reformulating HOI Detection as Adaptive Set Prediction

1 code implementation CVPR 2021 Mingfei Chen, Yue Liao, Si Liu, ZhiYuan Chen, Fei Wang, Chen Qian

To attain this, we map a trainable interaction query set to an interaction prediction set with a transformer.

Ranked #29 on Human-Object Interaction Detection on HICO-DET (using extra training data)

Human-Object Interaction Detection

Incremental learning with online SVMs on LiDAR sensory data

no code implementations30 Dec 2020 Le Dinh Van Khoa, ZhiYuan Chen

In this research, incremental learning approach with online support vector machines (SVMs) is presented, which aims to deal with LiDAR sensory data only.

Incremental Learning

Unsupervised Real Time Prediction of Faults Using the Support Vector Machine

no code implementations30 Dec 2020 ZhiYuan Chen, Isa Dino, Nik Ahmad Akram

The selected best performing classifiers are combined together with SVM classifier (with SMO training algorithm) by using the stacking ensemble method which is to create an efficient ensemble predictive model that can handle the issue of imbalanced data.

Attribute-aware Identity-hard Triplet Loss for Video-based Person Re-identification

2 code implementations13 Jun 2020 Zhiyuan Chen, Annan Li, Shilu Jiang, Yunhong Wang

Video-based person re-identification (Re-ID) is an important computer vision task.

Attribute Metric Learning +1

Detecting Point Outliers Using Prune-based Outlier Factor (PLOF)

no code implementations5 Nov 2019 Kasra Babaei, ZhiYuan Chen, Tomas Maul

Recently, density-based methods have shown promising results, particularly among which Local Outlier Factor (LOF) is arguably dominating.

Anomaly Detection Outlier Detection

Extending Signature-based Intrusion Detection Systems WithBayesian Abductive Reasoning

no code implementations28 Mar 2019 Ashwinkumar Ganesan, Pooja Parameshwarappa, Akshay Peshave, ZhiYuan Chen, Tim Oates

In this paper, we proposeaprobabilistic abductive reasoningapproach that augments an exist-ing rule-based IDS (snort [29]) to detect these evolved attacks by (a)Predicting rule conditions that are likely to occur (based on existingrules) and (b) able to generate new snort rules when provided withseed rule (i. e. a starting rule) to reduce the burden on experts toconstantly update them.

Intrusion Detection

A Temporal Attentive Approach for Video-Based Pedestrian Attribute Recognition

no code implementations17 Jan 2019 Zhiyuan Chen, Annan Li, Yunhong Wang

In this paper, we first tackle the problem of pedestrian attribute recognition by video-based approach.

Attribute Pedestrian Attribute Recognition

Using Randomness to Improve Robustness of Machine-Learning Models Against Evasion Attacks

no code implementations10 Aug 2018 Fan Yang, ZhiYuan Chen

Machine learning models have been widely used in security applications such as intrusion detection, spam filtering, and virus or malware detection.

BIG-bench Machine Learning Intrusion Detection +2

Lifelong Learning for Sentiment Classification

no code implementations IJCNLP 2015 Zhiyuan Chen, Nianzu Ma, Bing Liu

This paper proposes a novel lifelong learning (LL) approach to sentiment classification.

Bayesian Optimization Classification +3

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