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Extreme mass-ratio inspirals pose a difficult challenge in terms of both search and parameter estimation for upcoming space-based gravitational-wave detectors such as LISA. Their signals are long and of complex morphology, meaning they…

广义相对论与量子宇宙学 · 物理学 2025-05-23 Philippa S. Cole , James Alvey , Lorenzo Speri , Christoph Weniger , Uddipta Bhardwaj , Davide Gerosa , Gianfranco Bertone

Statistical shape modeling (SSM) is an essential tool for analyzing variations in anatomical morphology. In a typical SSM pipeline, 3D anatomical images, gone through segmentation and rigid registration, are represented using…

计算机视觉与模式识别 · 计算机科学 2024-01-02 Hong Xu , Shireen Y. Elhabian

R\'enyi's information provides a theoretical foundation for tractable and data-efficient non-parametric density estimation, based on pair-wise evaluations in a reproducing kernel Hilbert space (RKHS). This paper extends this framework to…

机器学习 · 计算机科学 2022-03-09 Bo Hu , Shujian Yu , Jose C. Principe

Detecting navigable space is the first and also a critical step for successful robot navigation. In this work, we treat the visual navigable space segmentation as a scene decomposition problem and propose a new network, NSS-VAEs (Navigable…

机器人学 · 计算机科学 2021-11-03 Zheng Chen , Lantao Liu

A novel wireless transmission scheme, as named the reconfigurable intelligent surface (RIS)-assisted received adaptive spatial modulation (RASM) scheme, is proposed in this paper. In this scheme, the adaptive spatial modulation (ASM)-based…

信息论 · 计算机科学 2025-02-26 Chaorong Zhang , Hui Xu , Benjamin K. Ng , Chan-Tong Lam , Ke Wang

Objective. Standard Magnetic Resonance Imaging (MRI) reconstruction pipelines discard phase information captured during acquisition, despite evidence that it encodes tissue properties relevant to tumor diagnosis. Current machine learning…

图像与视频处理 · 电气工程与系统科学 2026-04-17 Marco Schlimbach , Moritz Rempe , Jessica Mnischek , Lukas T. Rotkopf , Jens Weingarten , Jens Kleesiek , Kevin Kröninger

The task of radio map estimation aims to generate a dense representation of electromagnetic spectrum quantities, such as the received signal strength at each grid point within a geographic region, based on measurements from a subset of…

计算机视觉与模式识别 · 计算机科学 2025-04-30 Zheng Fang , Kangjun Liu , Ke Chen , Qingyu Liu , Jianguo Zhang , Lingyang Song , Yaowei Wang

With the emergence of wireless applications in three-dimensional environments, such as the low-altitude airspace and 3D heterogeneous networks, radio map estimation is increasingly required to characterize signal propagation across both…

计算机视觉与模式识别 · 计算机科学 2026-05-29 Zheng Fang , Junjie Liu , Kangjun Liu , Jianguo Zhang , Yaowei Wang , Ke Chen

We present a new method to visualize data ensembles by constructing structured probabilistic representations in latent spaces, i.e., lower-dimensional representations of spatial data features. Our approach transforms the spatial features of…

机器学习 · 计算机科学 2025-09-17 Cenyang Wu , Qinhan Yu , Liang Zhou

We describe a new method for identifying and characterizing the thermodynamic state of large samples of evolved galaxy groups at high redshifts using high-resolution, low-frequency radio surveys, such as those that will be carried out with…

星系天体物理 · 物理学 2017-07-26 J. H. Croston , J. Ineson , M. J. Hardcastle , B. Mingo

The Laser Interferometer Space Antenna (LISA) is expected to detect thousands of individually resolved gravitational wave sources, overlapping in time and frequency, on top of unresolved astrophysical and/or primordial backgrounds.…

星系天体物理 · 物理学 2026-01-09 Rahul Srinivasan , Enrico Barausse , Natalia Korsakova , Roberto Trotta

Reconstructing visual stimulus (image) only from human brain activity measured with functional Magnetic Resonance Imaging (fMRI) is a significant and meaningful task in Human-AI collaboration. However, the inconsistent distribution and…

计算机视觉与模式识别 · 计算机科学 2019-10-23 Ziqi Ren , Jie Li , Xuetong Xue , Xin Li , Fan Yang , Zhicheng Jiao , Xinbo Gao

Multi-spectral satellite imagery provides valuable data at global scale for many environmental and socio-economic applications. Building supervised machine learning models based on these imagery, however, may require ground reference labels…

计算机视觉与模式识别 · 计算机科学 2020-12-08 Tharun Mohandoss , Aditya Kulkarni , Daniel Northrup , Ernest Mwebaze , Hamed Alemohammad

Automotive radar perception pipelines commonly construct angle-domain representations via beamforming before applying learning-based models. This work instead investigates a representational question: can meaningful spatial structure be…

计算机视觉与模式识别 · 计算机科学 2026-04-03 George Sebastian , Philipp Berthold , Bianca Forkel , Leon Pohl , Mirko Maehlisch

Variational auto-encoders (VAEs) have proven to be a well suited tool for performing dimensionality reduction by extracting latent variables lying in a potentially much smaller dimensional space than the data. Their ability to capture…

机器学习 · 统计学 2020-10-23 Clément Chadebec , Clément Mantoux , Stéphanie Allassonnière

While unsupervised variational autoencoders (VAE) have become a powerful tool in neuroimage analysis, their application to supervised learning is under-explored. We aim to close this gap by proposing a unified probabilistic model for…

机器学习 · 计算机科学 2019-07-15 Qingyu Zhao , Ehsan Adeli , Nicolas Honnorat , Tuo Leng , Kilian M. Pohl

In this paper we propose a novel approach to generate a synthetic aerial dataset for application in UAV monitoring. We propose to accentuate shape-based object representation by applying texture randomization. A diverse dataset with…

计算机视觉与模式识别 · 计算机科学 2022-03-09 Antonella Barisic , Frano Petric , Stjepan Bogdan

As an emerging communication auxiliary technology, reconfigurable intelligent surface (RIS) is expected to play a significant role in the upcoming 6G networks. Due to its total reflection characteristics, it is challenging to implement…

信号处理 · 电气工程与系统科学 2023-08-04 W. Li , Z. Lin , Q. Guo , B. Vucetic

A radio map captures the spatial distribution of wireless channel parameters, such as the strength of the signal received, across a geographic area. The problem of fine-grained three-dimensional (3D) radio map construction involves…

信号处理 · 电气工程与系统科学 2026-03-24 Zhiyuan Liu , Qingyu Liu , Shuhang Zhang , Hongliang Zhang , Lingyang Song

The future new-generation radio telescope SKA (Square Kilometre Array) and its precursors will provide a rapidly growing number of polarized radio sources. Hundred and thousands polarized background sources can be measured towards nearby…

天体物理学 · 物理学 2007-12-03 T. G. Arshakian , R. Stepanov , R. Beck , P. Frick , M. Krause