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Federated learning (FL) enables collaborative model training without sharing raw user data, but conventional simulations often rely on unrealistic data partitioning and current user selection methods ignore data correlation among users. To…

信号处理 · 电气工程与系统科学 2026-01-21 Ce Zheng , Shiyao Ma , Ke Zhang , Chen Sun , Wenqi Zhang

While substantial progress has been made in the absolute performance of localization and Visual Place Recognition (VPR) techniques, it is becoming increasingly clear from translating these systems into applications that other capabilities…

计算机视觉与模式识别 · 计算机科学 2023-07-06 Helen Carson , Jason J. Ford , Michael Milford

The deep autoencoder (DAE) framework has turned out to be efficient in reducing the channel state information (CSI) feedback overhead in massive multiple-input multipleoutput (mMIMO) systems. However, these DAE approaches presented in prior…

信号处理 · 电气工程与系统科学 2025-09-16 Yuwen Cao , Guijun Liu , Tomoaki Ohtsuki , Howard H. Yang , Tony Q. S. Quek

Visual place recognition (VPR) using deep networks has achieved state-of-the-art performance. However, most of them require a training set with ground truth sensor poses to obtain positive and negative samples of each observation's spatial…

计算机视觉与模式识别 · 计算机科学 2024-11-21 Chao Chen , Zegang Cheng , Xinhao Liu , Yiming Li , Li Ding , Ruoyu Wang , Chen Feng

Analyzing time series data is crucial to a wide spectrum of applications, including economics, online marketplaces, and human healthcare. In particular, time series classification plays an indispensable role in segmenting different phases…

机器学习 · 计算机科学 2025-05-12 Xiwen Chen , Wenhui Zhu , Peijie Qiu , Hao Wang , Huayu Li , Zihan Li , Yalin Wang , Aristeidis Sotiras , Abolfazl Razi

Visual Place Recognition (VPR) is a fundamental task that allows a robotic platform to successfully localise itself in the environment. For decentralised VPR applications where the visual data has to be transmitted between several agents,…

计算机视觉与模式识别 · 计算机科学 2023-02-28 Mihnea-Alexandru Tomita , Bruno Ferrarini , Michael Milford , Klaus McDonald-Maier , Shoaib Ehsan

Deep neural networks trained on Functional Connectivity (FC) networks extracted from functional Magnetic Resonance Imaging (fMRI) data have gained popularity due to the increasing availability of data and advances in model architectures,…

机器学习 · 计算机科学 2023-12-05 Jungwon Choi , Seongho Keum , EungGu Yun , Byung-Hoon Kim , Juho Lee

Human motion prediction is still an open problem extremely important for autonomous driving and safety applications. Due to the complex spatiotemporal relation of motion sequences, this remains a challenging problem not only for movement…

计算机视觉与模式识别 · 计算机科学 2024-03-01 Edgar Medina , Leyong Loh , Namrata Gurung , Kyung Hun Oh , Niels Heller

A semi-supervised learning framework using the feedforward-designed convolutional neural networks (FF-CNNs) is proposed for image classification in this work. One unique property of FF-CNNs is that no backpropagation is used in model…

计算机视觉与模式识别 · 计算机科学 2019-02-07 Yueru Chen , Yijing Yang , Min Zhang , C. -C. Jay Kuo

Device-free crowd-counting using WiFi Channel State Information (CSI) is a key enabling technology for a new generation of privacy-preserving Internet of Things (IoT) applications. However, practical deployment is severely hampered by the…

计算机视觉与模式识别 · 计算机科学 2026-01-06 Oliver Custance , Saad Khan , Simon Parkinson , Quan Z. Sheng

The AI-enabled autoencoder has demonstrated great potential in channel state information (CSI) feedback in frequency division duplex (FDD) multiple input multiple output (MIMO) systems. However, this method completely changes the existing…

信号处理 · 电气工程与系统科学 2024-07-02 Yupeng Li , Gang Li , Zirui Wen , Shuangfeng Han , Shijian Gao , Guangyi Liu , Jiangzhou Wang

The potentials of massive multiple-input multiple-output (MIMO) are all based on the available instantaneous channel state information (CSI) at the base station (BS). Therefore, the user in frequency-division duplexing (FDD) systems has to…

信息论 · 计算机科学 2024-10-30 Jiajia Guo , Chao-Kai Wen , Shi Jin

Deep learning (DL) based channel state information (CSI) feedback in multiple-input multiple-output (MIMO) systems recently has attracted lots of attention from both academia and industrial. From a practical point of views, it is huge…

信号处理 · 电气工程与系统科学 2022-10-19 Liqiang Jin , Qiuping Huang , Qiubin Gao , Yongqiang Fei , Shaohui Sun

Collaborative Filtering (CF) is a foundational approach in recommender systems, but it struggles with challenges such as data sparsity and the cold-start problem. Cross-Domain Recommendation (CDR) has emerged as a promising solution by…

信息检索 · 计算机科学 2025-09-18 Jeongeun Lee , Seongku Kang , Won-Yong Shin , Jeongwhan Choi , Noseong Park , Dongha Lee

Visual Place Recognition (VPR) aims to estimate the location of an image by treating it as a retrieval problem. VPR uses a database of geo-tagged images and leverages deep neural networks to extract a global representation, called…

计算机视觉与模式识别 · 计算机科学 2024-04-23 Mattia Dutto , Gabriele Berton , Debora Caldarola , Eros Fanì , Gabriele Trivigno , Carlo Masone

This paper presents an advanced Federated Learning (FL) framework for forecasting complex spatiotemporal data, improving upon recent state-of-the-art models. In the proposed approach, the original Gated Recurrent Unit (GRU) module within…

机器学习 · 计算机科学 2025-10-02 Thien Pham , Angelo Furno , Faïcel Chamroukhi , Latifa Oukhellou

Accurate channel state information (CSI) is critical for current and next-generation multi-antenna systems. Yet conventional pilot-based estimators incur prohibitive overhead as antenna counts grow. In this paper, we address this challenge…

信号处理 · 电气工程与系统科学 2026-01-05 Syed Luqman Shah , Nurul Huda Mahmood , Italo Atzeni

In this paper, we propose a unified localization framework (called UNILocPro) that integrates model-based localization and channel charting (CC) for mixed line-of-sight (LoS)/non-line-of-sight (NLoS) scenarios. Specifically, based on…

信号处理 · 电气工程与系统科学 2025-11-03 Yuhao Zhang , Guangjin Pan , Musa Furkan Keskin , Ossi Kaltiokallio , Mikko Valkama , Henk Wymeersch

This paper proposes a new image-based localization framework that explicitly localizes the camera/robot by fusing Convolutional Neural Network (CNN) and sequential images' geometric constraints. The camera is localized using a single or few…

计算机视觉与模式识别 · 计算机科学 2022-01-06 Jingwei Song , Mitesh Patel , Maani Ghaffari

In a multiple-input multiple-output frequency-division duplexing (MIMO-FDD) system, the user equipment (UE) sends the downlink channel state information (CSI) to the base station to report link status. Due to the complexity of MIMO systems,…

网络与互联网体系结构 · 计算机科学 2022-07-19 Mostafa Hussien , Kim Khoa Nguyen , Mohamed Cheriet