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As Wireless Sensor Networks are penetrating into the industrial domain, many research opportunities are emerging. One such essential and challenging application is that of node localization. A feed-forward neural network based methodology…

Networking and Internet Architecture · Computer Science 2016-10-17 Shiu Kumar , Ronesh Sharma , Edwin Vans

Although WiFi fingerprint-based indoor localization is attractive, its accuracy remains a primary challenge especially in mobile environments. Existing approaches either appeal to physical layer information or rely on extra wireless signals…

Networking and Internet Architecture · Computer Science 2013-09-02 Chenshu Wu , Zheng Yang , Zimu Zhou , Yunhao Liu , Mingyan Liu

Machine learning model development in chemistry and materials science often grapples with the challenge of small scale, unbalanced labelled datasets, a common limitation in scientific experiments. These dataset imbalances can precipitate…

Chemical Physics · Physics 2026-05-19 Yuze Liu , Xi Yu

The development of remote sensing and deep learning techniques has enabled building semantic segmentation with high accuracy and efficiency. Despite their success in different tasks, the discussions on the impact of spatial resolution on…

Computer Vision and Pattern Recognition · Computer Science 2023-07-11 Zhiling Guo , Xiaodan Shi , Haoran Zhang , Dou Huang , Xiaoya Song , Jinyue Yan , Ryosuke Shibasaki

Object detection is a fundamental task for robots to operate in unstructured environments. Today, there are several deep learning algorithms that solve this task with remarkable performance. Unfortunately, training such systems requires…

Computer Vision and Pattern Recognition · Computer Science 2021-06-30 Federico Ceola , Elisa Maiettini , Giulia Pasquale , Lorenzo Rosasco , Lorenzo Natale

Deep learning (DL)-based RF fingerprinting (RFFP) technology has emerged as a powerful physical-layer security mechanism, enabling device identification and authentication based on unique device-specific signatures that can be extracted…

Cryptography and Security · Computer Science 2023-08-10 Abdurrahman Elmaghbub , Bechir Hamdaoui

Radio frequency (RF) fingerprinting, which extracts unique hardware imperfections of radio devices, has emerged as a promising physical-layer device identification mechanism in zero trust architectures and beyond 5G networks. In particular,…

Cryptography and Security · Computer Science 2026-05-28 Xinyu Cao , Bimal Adhikari , Shangqing Zhao , Jingxian Wu , Yanjun Pan

Hyperspectral image (HSI) classification has become a hot topic in the field of remote sensing. In general, the complex characteristics of hyperspectral data make the accurate classification of such data challenging for traditional machine…

Image and Video Processing · Electrical Eng. & Systems 2019-10-30 Shutao Li , Weiwei Song , Leyuan Fang , Yushi Chen , Pedram Ghamisi , Jón Atli Benediktsson

The current fusion positioning systems are mainly based on filtering algorithms, such as Kalman filtering or particle filtering. However, the system complexity of practical application scenarios is often very high, such as noise modeling in…

Signal Processing · Electrical Eng. & Systems 2022-09-29 Luchi Hua , Jun Yang

In this paper, we present a new solution to the problem of large-scale multi-building and multi-floor indoor localization based on linked neural networks, where each neural network is dedicated to a sub-problem and trained under a…

Machine Learning · Computer Science 2024-09-18 Sihao Li , Kyeong Soo Kim , Zhe Tang , Graduate , Jeremy S. Smith

Fingerprint recognition stands as a pivotal component of biometric technology, with diverse applications from identity verification to advanced search tools. In this paper, we propose a unique method for deriving robust fingerprint…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Ekta Gavas , Kaustubh Olpadkar , Anoop Namboodiri

Fingerprint localization has gained significant attention due to its cost-effective deployment, low complexity, and high efficacy. However, traditional methods, while effective for static data, often struggle in dynamic environments where…

Computer Vision and Pattern Recognition · Computer Science 2025-02-12 Jiyu Jiao , Xiaojun Wang , Chengpei Han

Wi-Fi fingerprinting is widely applied for indoor localization due to the widespread availability of Wi-Fi devices. However, traditional methods are not ideal for multi-building and multi-floor environments due to the scalability issues.…

Machine Learning · Computer Science 2024-07-19 Sihao Li , Zhe Tang , Kyeong Soo Kim , Jeremy S. Smith

We address a core problem of computer vision: Detection and description of 2D feature points for image matching. For a long time, hand-crafted designs, like the seminal SIFT algorithm, were unsurpassed in accuracy and efficiency. Recently,…

Computer Vision and Pattern Recognition · Computer Science 2020-03-23 Aritra Bhowmik , Stefan Gumhold , Carsten Rother , Eric Brachmann

This paper explores the use of ambient radio frequency (RF) signals for human presence detection through deep learning. Using WiFi signal as an example, we demonstrate that the channel state information (CSI) obtained at the receiver…

Machine Learning · Computer Science 2020-12-11 Yang Liu , Tiexing Wang , Yuexin Jiang , Biao Chen

The use of fingerprinting localization techniques in outdoor IoT settings has started to gain popularity over the recent years. Communication signals of Low Power Wide Area Networks (LPWAN), such as LoRaWAN, are used to estimate the…

Machine Learning · Computer Science 2020-11-10 Grigorios G. Anagnostopoulos , Alexandros Kalousis

Given the rapid advancements in wireless communication and terminal devices, high-speed and convenient WiFi has permeated various aspects of people's lives, and attention has been drawn to the location services that WiFi can provide.…

Signal Processing · Electrical Eng. & Systems 2023-07-03 Jiyu Jiao , Xiaojun Wang , Chenlin He

The localization technology is important for the development of indoor location-based services (LBS). The radio frequency (RF) fingerprint-based localization is one of the most promising approaches. However, it is challenging to apply this…

Signal Processing · Electrical Eng. & Systems 2017-12-06 Yu Zhang , Xiao-Yang Liu

The facility location problem (FLP) is a classical combinatorial optimization challenge aimed at strategically laying out facilities to maximize their accessibility. In this paper, we propose a reinforcement learning method tailored to…

Machine Learning · Computer Science 2024-09-09 Hongyuan Su , Yu Zheng , Jingtao Ding , Depeng Jin , Yong Li

In the domain of RIS-based indoor localization, our work introduces two distinct approaches to address real-world challenges. The first method is based on deep learning, employing a Long Short-Term Memory (LSTM) network. The second, a novel…

Signal Processing · Electrical Eng. & Systems 2024-05-06 Rafael A. Aguiar , Nuno Paulino , Luís M. Pessoa