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Passive radio frequency (PRF)-based indoor positioning systems (IPS) have attracted researchers' attention due to their low price, easy and customizable configuration, and non-invasive design. This paper proposes a PRF-based…

Signal Processing · Electrical Eng. & Systems 2023-04-14 Liangqi Yuan , Houlin Chen , Robert Ewing , Jia Li

In this paper, we investigate 3-D localization and frequency synchronization with multiple reconfigurable intelligent surfaces (RISs) in the presence of carrier frequency offset (CFO) for a stationary user equipment (UE). In line with the…

Signal Processing · Electrical Eng. & Systems 2025-09-26 Yasaman Ettefagh , Musa Furkan Keskin , Kamran Keykhosravi , Gonzalo Seco-Granados , Henk Wymeersch

Detecting the singular point accurately and efficiently is one of the most important tasks for fingerprint recognition. In recent years, deep learning has been gradually used in the fingerprint singular point detection. However, current…

Computer Vision and Pattern Recognition · Computer Science 2020-03-10 Liaojun Pang , Jiong Chen , Fei Guo , Zhicheng Cao , Heng Zhao

We present a novel path-planning algorithm to reduce localization error for a network of robots cooperatively localizing via inter-robot range measurements. The quality of localization with range measurements depends on the configuration of…

Robotics · Computer Science 2021-09-14 Alan Papalia , Nicole Thumma , John Leonard

Channel state information (CSI) based fingerprinting for WIFI indoor localization has attracted lots of attention very recently.The frequency diverse and temporally stable CSI better represents the location dependent channel characteristics…

Networking and Internet Architecture · Computer Science 2021-07-06 Zhihui Gao , Yunfan Gao , Sulei Wang , Dan Li , Yuedong Xu

The analysis of spatial data from biological imaging technology, such as imaging mass spectrometry (IMS) or imaging mass cytometry (IMC), is challenging because of a competitive sampling process which convolves signals from molecules in a…

Machine Learning · Statistics 2025-09-26 Joaquim Valerio Teixeira , Ed Reznik , Sudpito Banerjee , Wesley Tansey

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

We describe a variation of the iterative closest point (ICP) algorithm for aligning two point sets under a set of transformations. Our algorithm is superior to previous algorithms because (1) in determining the optimal alignment, it…

Graphics · Computer Science 2009-09-29 Jeff M. Phillips , Ran Liu , Carlo Tomasi

Due to the growing area of ubiquitous mobile applications, indoor localization of smartphones has become an interesting research topic. Most of the current indoor localization systems rely on intensive site survey to achieve high accuracy.…

Networking and Internet Architecture · Computer Science 2018-04-12 Jose Luis V. Carrera , Zhongliang Zhao , Torsten Braun , Haiyong Luo , Fang Zhao

The development of algorithms for secure state estimation in vulnerable cyber-physical systems has been gaining attention in the last years. A consolidated assumption is that an adversary can tamper a relatively small number of sensors. In…

Optimization and Control · Mathematics 2024-05-31 Vito Cerone , Sophie M. Fosson , Diego Regruto , Francesco Ripa

The advent of autonomous agents is transforming interactions with Graphical User Interfaces (GUIs) by employing natural language as a powerful intermediary. Despite the predominance of Supervised Fine-Tuning (SFT) methods in current GUI…

Machine Learning · Computer Science 2026-04-22 Jiaqi Tang , Yu Xia , Yi-Feng Wu , Yuwei Hu , Yuhui Chen , Qing-Guo Chen , Xiaogang Xu , Xiangyu Wu , Hao Lu , Yanqing Ma , Shiyin Lu , Qifeng Chen

In the last twenty-five years (1990-2014), algorithmic advances in integer optimization combined with hardware improvements have resulted in an astonishing 200 billion factor speedup in solving Mixed Integer Optimization (MIO) problems. We…

Methodology · Statistics 2015-07-14 Dimitris Bertsimas , Angela King , Rahul Mazumder

Knowing the position of the robot in the world is crucial for navigation. Nowadays, Bayesian filters, such as Kalman and particle-based, are standard approaches in mobile robotics. Recently, end-to-end learning has allowed for scaling-up to…

Robotics · Computer Science 2021-09-10 Daniel Burghardt , Pablo Lanillos

The advantages of millimeter-wave and large antenna arrays technologies for accurate wireless localization received extensive attentions recently. However, how to further improve the accuracy of wireless localization, even in the case of…

Information Theory · Computer Science 2020-09-17 Yiming Liu , Erwu Liu , Rui Wang

The increasing urbanization and the growing number of vehicles in cities have underscored the need for efficient parking management systems. Traditional smart parking solutions often rely on sensors or cameras for occupancy detection, each…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Gustavo P. C. P. da Luz , Gabriel Massuyoshi Sato , Luis Fernando Gomez Gonzalez , Juliana Freitag Borin

In machine learning, the process of feature selection involves finding a reduced subset of features that captures most of the information required to train an accurate and efficient model. This work presents FeatureCuts, a novel feature…

Machine Learning · Computer Science 2025-08-05 Andy Hu , Devika Prasad , Luiz Pizzato , Nicholas Foord , Arman Abrahamyan , Anna Leontjeva , Cooper Doyle , Dan Jermyn

Reconfigurable Intelligent Surface (RIS) plays a pivotal role in the sixth generation networks to enhance communication rate and localization accuracy. In this letter, we propose a positioning algorithm in a RIS-assisted environment, where…

Signal Processing · Electrical Eng. & Systems 2024-07-10 Sajjad Ghiasvand , Arash Nasri , Ali H. Abdollahi Bafghi , Masoumeh Nasiri-Kenari

We demonstrate the feasibility of a fully automatic computer-aided diagnosis (CAD) tool, based on deep learning, that localizes and classifies proximal femur fractures on X-ray images according to the AO classification. The proposed…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Amelia Jiménez-Sánchez , Anees Kazi , Shadi Albarqouni , Chlodwig Kirchhoff , Peter Biberthaler , Nassir Navab , Sonja Kirchhoff , Diana Mateus

A Reconfigurable Intelligent Surface (RIS) can significantly enhance network positioning and mapping, acting as an additional anchor point in the reference system and improving signal strength and measurement diversity through the…

Information Theory · Computer Science 2024-11-15 Dimitris Kompostiotis , Dimitris Vordonis , Vassilis Paliouras , George C. Alexandropoulos , Florin Grec

Locating a target is key in many applications, namely in high-stakes real-world scenarios, like detecting humans or obstacles in vehicular networks. In scenarios where precise statistics of the measurement noise are unavailable,…

Optimization and Control · Mathematics 2022-08-17 João Domingos , Cláudia Soares , João Xavier