Search Results for author: Wenchao Xu

Found 31 papers, 8 papers with code

ALWNN Empowered Automatic Modulation Classification: Conquering Complexity and Scarce Sample Conditions

no code implementations24 Mar 2025 Yunhao Quan, Chuang Gao, Nan Cheng, Zhijie Zhang, Zhisheng Yin, Wenchao Xu, Danyang Wang

The ALWNN model, by integrating the adaptive wavelet neural network and depth separable convolution, reduces the number of model parameters and computational complexity.

Few-Shot Learning

Unleashing the Power of Continual Learning on Non-Centralized Devices: A Survey

no code implementations18 Dec 2024 Yichen Li, Haozhao Wang, Wenchao Xu, Tianzhe Xiao, Hong Liu, Minzhu Tu, Yuying Wang, Xin Yang, Rui Zhang, Shui Yu, Song Guo, Ruixuan Li

To achieve high reliability and scalability in deploying this paradigm in distributed systems, it is essential to conquer challenges stemming from both spatial and temporal dimensions, manifesting as distribution shifts, catastrophic forgetting, heterogeneity, and privacy issues.

Continual Learning

Deploying Foundation Model Powered Agent Services: A Survey

no code implementations18 Dec 2024 Wenchao Xu, Jinyu Chen, Peirong Zheng, Xiaoquan Yi, Tianyi Tian, Wenhui Zhu, Quan Wan, Haozhao Wang, Yunfeng Fan, Qinliang Su, Xuemin Shen

Foundation model (FM) powered agent services are regarded as a promising solution to develop intelligent and personalized applications for advancing toward Artificial General Intelligence (AGI).

model Model Compression +2

Boosting Fine-Grained Visual Anomaly Detection with Coarse-Knowledge-Aware Adversarial Learning

1 code implementation17 Dec 2024 Qingqing Fang, Qinliang Su, Wenxi Lv, Wenchao Xu, Jianxing Yu

Then, a coarse-knowledge-aware adversarial learning method is developed to align the distribution of reconstructed features with that of normal features.

Anomaly Detection

A QoE-Aware Split Inference Accelerating Algorithm for NOMA-based Edge Intelligence

no code implementations25 Sep 2024 Xin Yuan, Ning li, Quan Chen, Wenchao Xu, Zhaoxin Zhang, Song Guo

Thus, the model split inference is proposed to improve the performance of edge intelligence, in which the AI model is divided into different sub models and the resource-intensive sub model is offloaded to edge server wirelessly for reducing resource requirements and inference latency.

GNN-Empowered Effective Partial Observation MARL Method for AoI Management in Multi-UAV Network

1 code implementation18 Aug 2024 Yuhao Pan, Xiucheng Wang, Zhiyao Xu, Nan Cheng, Wenchao Xu, Jun-Jie Zhang

Due to the discretization and temporal features of AoI indicators, the Qedgix framework employs QMIX to optimize distributed partially observable Markov decision processes (Dec-POMDP) based on centralized training and distributed execution (CTDE) with respect to mean AoI values of users.

Distributed Optimization Efficient Neural Network +2

FedBAT: Communication-Efficient Federated Learning via Learnable Binarization

1 code implementation6 Aug 2024 Shiwei Li, Wenchao Xu, Haozhao Wang, Xing Tang, Yining Qi, Shijie Xu, Weihong Luo, Yuhua Li, Xiuqiang He, Ruixuan Li

To this end, we propose Federated Binarization-Aware Training (FedBAT), a novel framework that directly learns binary model updates during the local training process, thus inherently reducing the approximation errors.

Binarization Federated Learning

Self-Introspective Decoding: Alleviating Hallucinations for Large Vision-Language Models

1 code implementation4 Aug 2024 Fushuo Huo, Wenchao Xu, Zhong Zhang, Haozhao Wang, Zhicheng Chen, Peilin Zhao

While Large Vision-Language Models (LVLMs) have rapidly advanced in recent years, the prevalent issue known as the `hallucination' problem has emerged as a significant bottleneck, hindering their real-world deployments.

Hallucination

Detached and Interactive Multimodal Learning

1 code implementation28 Jul 2024 Yunfeng Fan, Wenchao Xu, Haozhao Wang, Junhong Liu, Song Guo

Recently, Multimodal Learning (MML) has gained significant interest as it compensates for single-modality limitations through comprehensive complementary information within multimodal data.

Transfer Learning

Spatial-Temporal Attention Model for Traffic State Estimation with Sparse Internet of Vehicles

no code implementations10 Jul 2024 Jianzhe Xue, Dongcheng Yuan, Yu Sun, Tianqi Zhang, Wenchao Xu, Haibo Zhou, Xuemin, Shen

The growing number of connected vehicles offers an opportunity to leverage internet of vehicles (IoV) data for traffic state estimation (TSE) which plays a crucial role in intelligent transportation systems (ITS).

Personalized Federated Domain-Incremental Learning based on Adaptive Knowledge Matching

no code implementations6 Jul 2024 Yichen Li, Wenchao Xu, Haozhao Wang, Ruixuan Li, Yining Qi, Jingcai Guo

Then, the client can choose to adopt a new initial model or a previous model with similar knowledge to train the new task and simultaneously migrate knowledge from previous tasks based on these correlations.

Incremental Learning

Disentangle Estimation of Causal Effects from Cross-Silo Data

no code implementations4 Jan 2024 Yuxuan Liu, Haozhao Wang, Shuang Wang, Zhiming He, Wenchao Xu, Jialiang Zhu, Fan Yang

Estimating causal effects among different events is of great importance to critical fields such as drug development.

C2KD: Bridging the Modality Gap for Cross-Modal Knowledge Distillation

no code implementations CVPR 2024 Fushuo Huo, Wenchao Xu, Jingcai Guo, Haozhao Wang, Song Guo

We empirically reveal that the modality gap i. e. modality imbalance and soft label misalignment incurs the ineffectiveness of traditional KD in CMKD.

Knowledge Distillation Transfer Learning

Balanced Multi-modal Federated Learning via Cross-Modal Infiltration

no code implementations31 Dec 2023 Yunfeng Fan, Wenchao Xu, Haozhao Wang, Jiaqi Zhu, Song Guo

Federated learning (FL) underpins advancements in privacy-preserving distributed computing by collaboratively training neural networks without exposing clients' raw data.

Distributed Computing Federated Learning +2

Overcome Modal Bias in Multi-modal Federated Learning via Balanced Modality Selection

1 code implementation31 Dec 2023 Yunfeng Fan, Wenchao Xu, Haozhao Wang, Fushuo Huo, Jinyu Chen, Song Guo

On the other hand, we propose the modality selection aiming to select subsets of local modalities with great diversity and achieving global modal balance simultaneously.

Diversity Federated Learning +1

Mobility and Cost Aware Inference Accelerating Algorithm for Edge Intelligence

no code implementations27 Dec 2023 Xin Yuan, Ning li, Kang Wei, Wenchao Xu, Quan Chen, Hao Chen, Song Guo

The model segmentation without user mobility has been investigated deeply by previous works.

Segmentation

MDENet: Multi-modal Dual-embedding Networks for Malware Open-set Recognition

no code implementations2 May 2023 Jingcai Guo, Yuanyuan Xu, Wenchao Xu, Yufeng Zhan, Yuxia Sun, Song Guo

Malware open-set recognition (MOSR) aims at jointly classifying malware samples from known families and detect the ones from novel unknown families, respectively.

Open Set Learning

Towards Unbiased Training in Federated Open-world Semi-supervised Learning

no code implementations1 May 2023 Jie Zhang, Xiaosong Ma, Song Guo, Wenchao Xu

Federated Semi-supervised Learning (FedSSL) has emerged as a new paradigm for allowing distributed clients to collaboratively train a machine learning model over scarce labeled data and abundant unlabeled data.

Open-World Semi-Supervised Learning Transfer Learning

Non-Exemplar Online Class-incremental Continual Learning via Dual-prototype Self-augment and Refinement

no code implementations20 Mar 2023 Fushuo Huo, Wenchao Xu, Jingcai Guo, Haozhao Wang, Yunfeng Fan, Song Guo

In this paper, we propose a novel Dual-prototype Self-augment and Refinement method (DSR) for NO-CL problem, which consists of two strategies: 1) Dual class prototypes: vanilla and high-dimensional prototypes are exploited to utilize the pre-trained information and obtain robust quasi-orthogonal representations rather than example buffers for both privacy preservation and memory reduction.

Continual Learning

DualMix: Unleashing the Potential of Data Augmentation for Online Class-Incremental Learning

no code implementations14 Mar 2023 Yunfeng Fan, Wenchao Xu, Haozhao Wang, Jiaqi Zhu, Junxiao Wang, Song Guo

Unfortunately, OCI learning can suffer from catastrophic forgetting (CF) as the decision boundaries for old classes can become inaccurate when perturbated by new ones.

class-incremental learning Class Incremental Learning +2

RMMDet: Road-Side Multitype and Multigroup Sensor Detection System for Autonomous Driving

2 code implementations9 Mar 2023 Xiuyu Yang, Zhuangyan Zhang, Haikuo Du, Sui Yang, Fengping Sun, Yanbo Liu, Ling Pei, Wenchao Xu, Weiqi Sun, Zhengyu Li

Then we implement muti-type sensor detection and multi-group sensors fusion in this environment, including camera-radar and camera-lidar detection based on result-level fusion.

Autonomous Driving Diversity +2

DaFKD: Domain-Aware Federated Knowledge Distillation

no code implementations CVPR 2023 Haozhao Wang, Yichen Li, Wenchao Xu, Ruixuan Li, Yufeng Zhan, Zhigang Zeng

In this paper, we propose a new perspective that treats the local data in each client as a specific domain and design a novel domain knowledge aware federated distillation method, dubbed DaFKD, that can discern the importance of each model to the distillation sample, and thus is able to optimize the ensemble of soft predictions from diverse models.

Knowledge Distillation

AirCon: Over-the-Air Consensus for Wireless Blockchain Networks

no code implementations30 Nov 2022 Xin Xie, Cunqing Hua, Pengwenlong Gu, Wenchao Xu

Blockchain has been deemed as a promising solution for providing security and privacy protection in the next-generation wireless networks.

ProCC: Progressive Cross-primitive Compatibility for Open-World Compositional Zero-Shot Learning

no code implementations19 Nov 2022 Fushuo Huo, Wenchao Xu, Song Guo, Jingcai Guo, Haozhao Wang, Ziming Liu, Xiaocheng Lu

Open-World Compositional Zero-shot Learning (OW-CZSL) aims to recognize novel compositions of state and object primitives in images with no priors on the compositional space, which induces a tremendously large output space containing all possible state-object compositions.

Compositional Zero-Shot Learning Object

FedTune: A Deep Dive into Efficient Federated Fine-Tuning with Pre-trained Transformers

no code implementations15 Nov 2022 Jinyu Chen, Wenchao Xu, Song Guo, Junxiao Wang, Jie Zhang, Haozhao Wang

Federated Learning (FL) is an emerging paradigm that enables distributed users to collaboratively and iteratively train machine learning models without sharing their private data.

Federated Learning Language Modelling +1

PMR: Prototypical Modal Rebalance for Multimodal Learning

no code implementations CVPR 2023 Yunfeng Fan, Wenchao Xu, Haozhao Wang, Junxiao Wang, Song Guo

Multimodal learning (MML) aims to jointly exploit the common priors of different modalities to compensate for their inherent limitations.

Demystify Self-Attention in Vision Transformers from a Semantic Perspective: Analysis and Application

no code implementations13 Nov 2022 Leijie Wu, Song Guo, Yaohong Ding, Junxiao Wang, Wenchao Xu, Richard Yida Xu, Jie Zhang

In contrast, visual data exhibits a fundamentally different structure: Its basic unit (pixel) is a natural low-level representation with significant redundancies in the neighbourhood, which poses obvious challenges to the interpretability of MSA mechanism in ViT.

SigT: An Efficient End-to-End MIMO-OFDM Receiver Framework Based on Transformer

1 code implementation2 Nov 2022 Ziyou Ren, Nan Cheng, Ruijin Sun, Xiucheng Wang, Ning Lu, Wenchao Xu

Multiple-input multiple-output and orthogonal frequency-division multiplexing (MIMO-OFDM) are the key technologies in 4G and subsequent wireless communication systems.

PromptFL: Let Federated Participants Cooperatively Learn Prompts Instead of Models -- Federated Learning in Age of Foundation Model

no code implementations24 Aug 2022 Tao Guo, Song Guo, Junxiao Wang, Wenchao Xu

Quick global aggregation of effective distributed parameters is crucial to federated learning (FL), which requires adequate bandwidth for parameters communication and sufficient user data for local training.

Federated Learning

Efficient Attribute Unlearning: Towards Selective Removal of Input Attributes from Feature Representations

no code implementations27 Feb 2022 Tao Guo, Song Guo, Jiewei Zhang, Wenchao Xu, Junxiao Wang

Existing studies of machine unlearning mainly focus on sample-wise unlearning, such that a learnt model will not expose user's privacy at the sample level.

Attribute Face Recognition +2

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