Search Results for author: Xue Wang

Found 41 papers, 15 papers with code

Self-Calibrated Dual Contrasting for Annotation-Efficient Bacteria Raman Spectroscopy Clustering and Classification

no code implementations28 Dec 2024 Haiming Yao, Wei Luo, Tao Zhou, Ang Gao, Xue Wang

The integration of deep learning technology has significantly improved the efficiency and accuracy of intelligent Raman spectroscopy (RS) recognition.

Contrastive Learning

Adversarial Contrastive Domain-Generative Learning for Bacteria Raman Spectrum Joint Denoising and Cross-Domain Identification

no code implementations11 Dec 2024 Haiming Yao, Wei Luo, Xue Wang

Raman spectroscopy, as a label-free detection technology, has been widely utilized in the clinical diagnosis of pathogenic bacteria.

Denoising

DiffRaman: A Conditional Latent Denoising Diffusion Probabilistic Model for Bacterial Raman Spectroscopy Identification Under Limited Data Conditions

no code implementations11 Dec 2024 Haiming Yao, Wei Luo, Ang Gao, Tao Zhou, Xue Wang

Raman spectroscopy has attracted significant attention in various biochemical detection fields, especially in the rapid identification of pathogenic bacteria.

Computational Efficiency Denoising

UAV Virtual Antenna Array Deployment for Uplink Interference Mitigation in Data Collection Networks

no code implementations9 Dec 2024 Hongjuan Li, Hui Kang, Geng Sun, Jiahui Li, Jiacheng Wang, Xue Wang, Dusit Niyato, Victor C. M. Leung

Thus, by jointly optimizing the excitation current weights and hover position of UAVs as well as the sequence of data transmission to various BSs, we formulate an uplink interference mitigation multi-objective optimization problem (MOOP) to decrease interference affection, enhance transmission efficiency, and improve energy efficiency, simultaneously.

Style3D: Attention-guided Multi-view Style Transfer for 3D Object Generation

no code implementations4 Dec 2024 Bingjie Song, Xin Huang, Ruting Xie, Xue Wang, Qing Wang

Specifically, the query features from the content image preserve geometric consistency across multiple views, while the key and value features from the style image are used to guide the stylistic transfer.

3D Reconstruction Computational Efficiency +1

$α$-DPO: Adaptive Reward Margin is What Direct Preference Optimization Needs

1 code implementation14 Oct 2024 Junkang Wu, Xue Wang, Zhengyi Yang, Jiancan Wu, Jinyang Gao, Bolin Ding, Xiang Wang, Xiangnan He

Aligning large language models (LLMs) with human values and intentions is crucial for their utility, honesty, and safety.

Computational Efficiency

Beyond LLaVA-HD: Diving into High-Resolution Large Multimodal Models

1 code implementation12 Jun 2024 Yi-Fan Zhang, Qingsong Wen, Chaoyou Fu, Xue Wang, Zhang Zhang, Liang Wang, Rong Jin

Seeing clearly with high resolution is a foundation of Large Multimodal Models (LMMs), which has been proven to be vital for visual perception and reasoning.

Image Compression

Debiasing Multimodal Large Language Models

1 code implementation8 Mar 2024 Yi-Fan Zhang, Weichen Yu, Qingsong Wen, Xue Wang, Zhang Zhang, Liang Wang, Rong Jin, Tieniu Tan

In the realms of computer vision and natural language processing, Large Vision-Language Models (LVLMs) have become indispensable tools, proficient in generating textual descriptions based on visual inputs.

Fairness Question Answering

Attention as Robust Representation for Time Series Forecasting

no code implementations8 Feb 2024 Peisong Niu, Tian Zhou, Xue Wang, Liang Sun, Rong Jin

Time series forecasting is essential for many practical applications, with the adoption of transformer-based models on the rise due to their impressive performance in NLP and CV.

Multivariate Time Series Forecasting Time Series

DiffsFormer: A Diffusion Transformer on Stock Factor Augmentation

no code implementations5 Feb 2024 Yuan Gao, Haokun Chen, Xiang Wang, Zhicai Wang, Xue Wang, Jinyang Gao, Bolin Ding

Our research demonstrates the efficacy of leveraging AIGS and the DiffsFormer architecture to mitigate data scarcity in stock forecasting tasks.

ModernTCN: A Modern Pure Convolution Structure for General Time Series Analysis

2 code implementations ICLR 2024 Donghao Luo, Xue Wang

As a pure convolution structure, ModernTCN still achieves the consistent state-of-the-art performance on five mainstream time series analysis tasks while maintaining the efficiency advantage of convolution-based models, therefore providing a better balance of efficiency and performance than state-of-the-art Transformer-based and MLP-based models.

Time Series Time Series Analysis

Model-free Test Time Adaptation for Out-Of-Distribution Detection

no code implementations28 Nov 2023 Yifan Zhang, Xue Wang, Tian Zhou, Kun Yuan, Zhang Zhang, Liang Wang, Rong Jin, Tieniu Tan

We demonstrate the effectiveness of \abbr through comprehensive experiments on multiple OOD detection benchmarks, extensive empirical studies show that \abbr significantly improves the performance of OOD detection over state-of-the-art methods.

Decision Making Out-of-Distribution Detection +2

Understanding the Role of Textual Prompts in LLM for Time Series Forecasting: an Adapter View

1 code implementation24 Nov 2023 Peisong Niu, Tian Zhou, Xue Wang, Liang Sun, Rong Jin

In the burgeoning domain of Large Language Models (LLMs), there is a growing interest in applying LLM to time series forecasting, with multiple studies focused on leveraging textual prompts to further enhance the predictive prowess.

Anomaly Detection Few-Shot Learning +2

Large Models for Time Series and Spatio-Temporal Data: A Survey and Outlook

6 code implementations16 Oct 2023 Ming Jin, Qingsong Wen, Yuxuan Liang, Chaoli Zhang, Siqiao Xue, Xue Wang, James Zhang, Yi Wang, Haifeng Chen, XiaoLi Li, Shirui Pan, Vincent S. Tseng, Yu Zheng, Lei Chen, Hui Xiong

In this survey, we offer a comprehensive and up-to-date review of large models tailored (or adapted) for time series and spatio-temporal data, spanning four key facets: data types, model categories, model scopes, and application areas/tasks.

Time Series Time Series Analysis

OneNet: Enhancing Time Series Forecasting Models under Concept Drift by Online Ensembling

2 code implementations NeurIPS 2023 Yi-Fan Zhang, Qingsong Wen, Xue Wang, Weiqi Chen, Liang Sun, Zhang Zhang, Liang Wang, Rong Jin, Tieniu Tan

Online updating of time series forecasting models aims to address the concept drifting problem by efficiently updating forecasting models based on streaming data.

Time Series Time Series Forecasting

AdaNPC: Exploring Non-Parametric Classifier for Test-Time Adaptation

1 code implementation25 Apr 2023 Yi-Fan Zhang, Xue Wang, Kexin Jin, Kun Yuan, Zhang Zhang, Liang Wang, Rong Jin, Tieniu Tan

In particular, when the adaptation target is a series of domains, the adaptation accuracy of AdaNPC is 50% higher than advanced TTA methods.

Domain Generalization Test-time Adaptation

One Fits All:Power General Time Series Analysis by Pretrained LM

3 code implementations23 Feb 2023 Tian Zhou, Peisong Niu, Xue Wang, Liang Sun, Rong Jin

The main challenge that blocks the development of pre-trained model for time series analysis is the lack of a large amount of data for training.

Anomaly Detection Few-Shot Learning +2

Counterfactual-based Saliency Map: Towards Visual Contrastive Explanations for Neural Networks

no code implementations ICCV 2023 Xue Wang, Zhibo Wang, Haiqin Weng, Hengchang Guo, Zhifei Zhang, Lu Jin, Tao Wei, Kui Ren

Considering the insufficient study on such complex causal questions, we make the first attempt to explain different causal questions by contrastive explanations in a unified framework, ie., Counterfactual Contrastive Explanation (CCE), which visually and intuitively explains the aforementioned questions via a novel positive-negative saliency-based explanation scheme.

counterfactual

Siamese Transition Masked Autoencoders as Uniform Unsupervised Visual Anomaly Detector

no code implementations1 Nov 2022 Haiming Yao, Xue Wang, Wenyong Yu

The extensive experiments conducted demonstrate that the proposed ST-MAE method can advance state-of-the-art performance on multiple benchmarks across application scenarios with a superior inference efficiency, which exhibits great potential to be the uniform model for unsupervised visual anomaly detection.

Anomaly Detection Decoder

TreeDRNet:A Robust Deep Model for Long Term Time Series Forecasting

no code implementations24 Jun 2022 Tian Zhou, Jianqing Zhu, Xue Wang, Ziqing Ma, Qingsong Wen, Liang Sun, Rong Jin

Various deep learning models, especially some latest Transformer-based approaches, have greatly improved the state-of-art performance for long-term time series forecasting. However, those transformer-based models suffer a severe deterioration performance with prolonged input length, which prohibits them from using extended historical info. Moreover, these methods tend to handle complex examples in long-term forecasting with increased model complexity, which often leads to a significant increase in computation and less robustness in performance(e. g., overfitting).

Computational Efficiency feature selection +2

A Feature Memory Rearrangement Network for Visual Inspection of Textured Surface Defects Toward Edge Intelligent Manufacturing

no code implementations22 Jun 2022 Haiming Yao, Wenyong Yu, Xue Wang

Subsequently, a contrastive-learning-based memory feature module (CMFM) is proposed to obtain discriminative representations and construct a normal feature memory bank in the latent space, which can be employed as a substitute for defects and fast anomaly scores at the patch level.

Contrastive Learning Edge-computing

FiLM: Frequency improved Legendre Memory Model for Long-term Time Series Forecasting

3 code implementations18 May 2022 Tian Zhou, Ziqing Ma, Xue Wang, Qingsong Wen, Liang Sun, Tao Yao, Wotao Yin, Rong Jin

Recent studies have shown that deep learning models such as RNNs and Transformers have brought significant performance gains for long-term forecasting of time series because they effectively utilize historical information.

Deep Learning Dimensionality Reduction +2

Epipolar Focus Spectrum: A Novel Light Field Representation and Application in Dense-view Reconstruction

no code implementations1 Apr 2022 Yaning Li, Xue Wang, Hao Zhu, Guoqing Zhou, Qing Wang

Existing light field representations, such as epipolar plane image (EPI) and sub-aperture images, do not consider the structural characteristics across the views, so they usually require additional disparity and spatial structure cues for follow-up tasks.

Progressive Backdoor Erasing via connecting Backdoor and Adversarial Attacks

no code implementations CVPR 2023 Bingxu Mu, Zhenxing Niu, Le Wang, Xue Wang, Rong Jin, Gang Hua

Deep neural networks (DNNs) are known to be vulnerable to both backdoor attacks as well as adversarial attacks.

backdoor defense

FEDformer: Frequency Enhanced Decomposed Transformer for Long-term Series Forecasting

3 code implementations30 Jan 2022 Tian Zhou, Ziqing Ma, Qingsong Wen, Xue Wang, Liang Sun, Rong Jin

Although Transformer-based methods have significantly improved state-of-the-art results for long-term series forecasting, they are not only computationally expensive but more importantly, are unable to capture the global view of time series (e. g. overall trend).

Time Series Time Series Analysis

Fast and Unsupervised Action Boundary Detection for Action Segmentation

no code implementations CVPR 2022 Zexing Du, Xue Wang, Guoqing Zhou, Qing Wang

To deal with the great number of untrimmed videos produced every day, we propose an efficient unsupervised action segmentation method by detecting boundaries, named action boundary detection (ABD).

Boundary Detection Change Point Detection +1

SIDNet: Learning Shading-aware Illumination Descriptor for Image Harmonization

no code implementations2 Dec 2021 Zhongyun Hu, Ntumba Elie Nsampi, Xue Wang, Qing Wang

Before solving these two sub-problems, we first learn a shading-aware illumination descriptor via a well-designed neural rendering framework, of which the key is a shading bases module that generates multiple shading bases from the foreground image.

Image Harmonization Neural Rendering

Scaled ReLU Matters for Training Vision Transformers

no code implementations8 Sep 2021 Pichao Wang, Xue Wang, Hao Luo, Jingkai Zhou, Zhipeng Zhou, Fan Wang, Hao Li, Rong Jin

In this paper, we further investigate this problem and extend the above conclusion: only early convolutions do not help for stable training, but the scaled ReLU operation in the \textit{convolutional stem} (\textit{conv-stem}) matters.

Diversity

Hierarchical contagions in the interdependent financial network

no code implementations27 Jun 2021 William A. Barnett, Xue Wang, Hai-Chuan Xu, Wei-Xing Zhou

We derive the default cascade model and the fire-sale spillover model in a unified interdependent framework.

Management

KVT: k-NN Attention for Boosting Vision Transformers

1 code implementation28 May 2021 Pichao Wang, Xue Wang, Fan Wang, Ming Lin, Shuning Chang, Hao Li, Rong Jin

A key component in vision transformers is the fully-connected self-attention which is more powerful than CNNs in modelling long range dependencies.

Deep Anti-aliasing of Whole Focal Stack Using Slice Spectrum

no code implementations23 Jan 2021 Yaning Li, Xue Wang, Hao Zhu, Guoqing Zhou, Qing Wang

Based on these two observations, we propose a learning-based FSS reconstruction approach for one-time aliasing removing over the whole focal stack.

Depth Estimation

Online Learning and Decision-Making under Generalized Linear Model with High-Dimensional Data

no code implementations7 Dec 2018 Xue Wang, Mike Mingcheng Wei, Tao Yao

We propose a minimax concave penalized multi-armed bandit algorithm under generalized linear model (G-MCP-Bandit) for a decision-maker facing high-dimensional data in an online learning and decision-making process.

Decision Making

Minimax Concave Penalized Multi-Armed Bandit Model with High-Dimensional Covariates

no code implementations ICML 2018 Xue Wang, Mingcheng Wei, Tao Yao

In addition, we develop a linear approximation method, the 2-step Weighted Lasso procedure, to identify the MCP estimator for the MCP-Bandit algorithm under non-i. i. d.

Decision Making Vocal Bursts Intensity Prediction

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