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A versatile method for angle-resolved photoemission spectra (ARPES) calculations is reported within the one-step model of photoemission. The initial states are obtained from a repeated-slab calculation using the projector-augmented wave…

Materials Science · Physics 2024-02-28 Misa Nozaki , Peter Krüger

Deterministic channel modeling maps a physical environment to its site-specific electromagnetic response. Ray tracing produces complete multi-dimensional channel information but remains prohibitively expensive for area-wide deployment. We…

Information Theory · Computer Science 2026-03-31 Xiucheng Wang , Junxi Huang , Conghao Zhou , Xuemin Shen , Nan Cheng

A Neural Network-based method for unsupervised landmarks map estimation from measurements taken from landmarks is introduced. The measurements needed for training the network are the signals observed/received from landmarks by an agent. The…

Machine Learning · Computer Science 2020-01-30 Alireza Razavi

In this paper, we investigate the performance of a reconfigurable intelligent surface (RIS) assisted large-scale network by characterizing the coverage probability and the average achievable rate using stochastic geometry. Considering the…

Signal Processing · Electrical Eng. & Systems 2022-08-19 Tianxiong Wang , Gaojie Chen , Mihai-Alin Badiu , Justin P. Coon

Large-scale diffusion models have made significant advances in image generation, particularly through cross-attention mechanisms. While cross-attention has been well-studied in text-to-image tasks, their interpretability in image-to-image…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Junseo Park , Hyeryung Jang

Predicting pathloss by considering the physical environment is crucial for effective wireless network planning. Traditional methods, such as ray tracing and model-based approaches, often face challenges due to high computational complexity…

Signal Processing · Electrical Eng. & Systems 2026-01-14 Yuan Gao , Tao Wen , Wenjing Xie , Jianbo Du , Yong Zeng , Dusit Niyato , Shugong Xu

The rollout of millimeter-wave (mmWave) cellular network enables us to realize the full potential of 5G/6G with vastly improved throughput and ultra-low latency. MmWave communication relies on highly directional transmission, which…

Information Theory · Computer Science 2022-08-12 Peize Zhang , Pekka Kyösti , Katsuyuki Haneda , Pasi Koivumäki , Wei Fan

Approximate message passing algorithm enjoyed considerable attention in the last decade. In this paper we introduce a variant of the AMP algorithm that takes into account glassy nature of the system under consideration. We coin this…

Disordered Systems and Neural Networks · Physics 2019-02-07 Fabrizio Antenucci , Florent Krzakala , Pierfrancesco Urbani , Lenka Zdeborová

The accuracy assessment of remote-sensing derived built-up land data represents a specific case of binary map comparison, where class imbalance varies considerably across rural-urban trajectories. Thus, local accuracy characterization of…

Physics and Society · Physics 2024-03-04 Johannes H. Uhl , Stefan Leyk

In this paper, we propose an indoor localization system employing ordered sequence of access points (APs) based on received signal strength (RSS). Unlike existing indoor localization systems, our approach does not require any time-consuming…

Networking and Internet Architecture · Computer Science 2016-03-23 Ran Liu , Chau Yuen , Jun Zhao , Jindong Guo , Ronghong Mo , Vishesh N Pamadi , Xiang Liu

The upper 6 GHz (U6G) band with XL-MIMO is a key enabler for sixth-generation wireless systems, yet intelligent radiomap prediction for such systems remains challenging. Existing datasets support only small-scale arrays (up to 8x8) with…

Signal Processing · Electrical Eng. & Systems 2026-03-09 Xiaojie Li , Yu Han , Zhizheng Lu , Shi Jin , Chao-Kai Wen

Obtaining accurate information about future traffic flows of all links in a traffic network is of great importance for traffic management and control applications. This research studies two particular problems in traffic forecasting: (1)…

Machine Learning · Computer Science 2020-11-17 Xinglei Wang , Xuefeng Guan , Jun Cao , Na Zhang , Huayi Wu

The single-particle spectral function measures the density of electronic states (DOS) in a material as a function of both momentum and energy, providing central insights into phenomena such as superconductivity and Mott insulators. While…

Mesoscale and Nanoscale Physics · Physics 2017-11-22 Joonho Jang , Heun Mo Yoo , Loren Pfeiffer , Ken West , K. W. Baldwin , Raymond Ashoori

This paper studies a high-altitude platform (HAP) network supported by reconfigurable intelligent surfaces (RISs). The practical irregular placement of HAPs and RISs is modeled using homogeneous Poisson point processes, while buildings that…

Signal Processing · Electrical Eng. & Systems 2025-06-19 Islam M. Tanash , Ayush Kumar Dwivedi , Taneli Riihonen

Analytical contact mechanics theories depend on surface roughness through the surface roughness power spectrum. In the present study, we evaluated the usability of various experimental methods for studying surface roughness. Our findings…

Materials Science · Physics 2024-08-13 N. Rodriguez , L. Gontard , C. Ma , R. Xu , B. N. J. Persson

Motion Prediction (MP) of multiple surroundings agents is a crucial task in arbitrarily complex environments, from simple robots to Autonomous Driving Stacks (ADS). Current techniques tackle this problem using end-to-end pipelines, where…

Robotics · Computer Science 2023-11-02 Carlos Gómez-Huélamo , Marcos V. Conde , Rafael Barea , Manuel Ocaña , Luis M. Bergasa

Despite the remarkable progress facilitated by learning-based stereo-matching algorithms, disparity estimation in low-texture, occluded, and bordered regions still remains a bottleneck that limits the performance. To tackle these…

Computer Vision and Pattern Recognition · Computer Science 2024-02-29 Zihua Liu , Songyan Zhang , Zhicheng Wang , Masatoshi Okutomi

Mobile and ubiquitous sensing of urban air quality has received increased attention as an economically and operationally viable means to survey atmospheric environment with high spatial-temporal resolution. This paper proposes a machine…

Machine Learning · Computer Science 2020-03-03 Jun Song , Ke Han

Radio environment maps (REMs) hold a central role in optimizing wireless network deployment, enhancing network performance, and ensuring effective spectrum management. Conventional REM prediction methods are either excessively…

Networking and Internet Architecture · Computer Science 2023-09-22 Hazem Sallouha , Shamik Sarkar , Enes Krijestorac , Danijela Cabric

Radio maps (RMs) serve as a critical foundation for enabling environment-aware wireless communication, as they provide the spatial distribution of wireless channel characteristics. Despite recent progress in RM construction using…

Machine Learning · Computer Science 2025-07-17 Xiucheng Wang , Qiming Zhang , Nan Cheng , Junting Chen , Zezhong Zhang , Zan Li , Shuguang Cui , Xuemin Shen