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Low-complexity improved-throughput generalised spatial modulation (LCIT-GSM) is proposed. More explicitly, in GSM, extra information bits are conveyed implicitly by activating a fixed number $N_{a}$ out of $N_{t}$ transmit antennas (TAs) at…

Information Theory · Computer Science 2021-07-28 Jiancheng An , Chao Xu , Yusha Liu , Lu Gan , Lajos Hanzo

To enhance the multiplexing gain of two-receiver Multiple-Input-Single-Output Broadcast Channel with imperfect channel state information at the transmitter (CSIT), a class of Rate-Splitting (RS) approaches has been proposed recently, which…

Information Theory · Computer Science 2015-07-01 Chenxi Hao , Yueping Wu , Bruno Clerckx

In this article, we present new random walk methods to solve flow and transport problems in unsaturated/saturated porous media, including coupled flow and transport processes in soils, heterogeneous systems modeled through random hydraulic…

Numerical Analysis · Mathematics 2021-05-14 Nicolae Suciu , Davide Illiano , Alexander Prechtel , Florin A. Radu

Gaussian processes are widely used in machine learning domains but remain computationally demanding, limiting their efficient scalability across emerging hardware platforms. The GPRat library addresses these challenges using the HPX…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-29 Alexander Strack , Patrick Diehl , Dirk Pflüger

This paper considers intelligent reflecting surface (IRS)-aided simultaneous wireless information and power transfer (SWIPT) in a multi-user multiple-input single-output (MISO) interference channel (IFC), where multiple transmitters (Txs)…

Information Theory · Computer Science 2024-01-31 Ying Gao , Qingqing Wu , Wen Chen , Celimuge Wu , Derrick Wing Kwan Ng , Naofal Al-Dhahir

Despite the growing interest in parallel-in-time methods as an approach to accelerate numerical simulations in atmospheric modelling, improving their stability and convergence remains a substantial challenge for their application to…

Numerical Analysis · Mathematics 2023-10-27 João Guilherme Caldas Steinstraesser , Pedro da Silva Peixoto , Martin Schreiber

Applications such as uncertainty quantification and optical tomography, require solving the radiative transfer equation (RTE) many times for various parameters. Efficient solvers for RTE are highly desired. Source Iteration with Synthetic…

Numerical Analysis · Mathematics 2024-06-05 Zhichao Peng

Powering mobiles using microwave \emph{power transfer} (PT) avoids the inconvenience of battery recharging by cables and ensures uninterrupted mobile operation. The integration of PT and \emph{information transfer} (IT) allows wireless PT…

Information Theory · Computer Science 2014-10-07 Rahul Vaze , Jainam Doshi , Kaibin Huang

This paper presents a novel time synchronization attack (TSA) model for the Global Positioning System (GPS) based on clock data behavior changes in a higher-order derivative domain. Further, the time synchronization attack rejection and…

Signal Processing · Electrical Eng. & Systems 2021-03-02 Erick Schmidt , Junhwan Lee , Nikolaos Gatsis , David Akopian

Wavelet-based grid adaptation driven by the "multiresolution analysis" (MRA) of the Haar wavelet (HW) allows to devise an adaptive first-order finite volume (FV1) model (HWFV1) that can readily preserve the modelling fidelity of its…

Computational Engineering, Finance, and Science · Computer Science 2023-05-17 Alovya Ahmed Chowdhury , Georges Kesserwani , Charles Rougé , Paul Richmond

This paper introduces a fast algorithm, applicable throughout the electromagnetic spectrum, for the numerical solution of problems of scattering by periodic surfaces in two-dimensional space. The proposed algorithm remains highly accurate…

Computational Physics · Physics 2018-05-25 Oscar Bruno , Martín Maas

Automatic speech recognition (ASR) models are frequently exposed to data distribution shifts in many real-world scenarios, leading to erroneous predictions. To tackle this issue, an existing test-time adaptation (TTA) method has recently…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-22 Changhun Kim , Joonhyung Park , Hajin Shim , Eunho Yang

Diffusion-based image super-resolution (SR) methods have demonstrated remarkable performance. Recent advancements have introduced deterministic sampling processes that reduce inference from 15 iterative steps to a single step, thereby…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Zihang Liu , Zhenyu Zhang , Hao Tang

Sparse Matrix-Vector Multiplication (SpMV) is the cornerstone in many iterative workloads, including large-scale graph analytics and sparse iterative solvers. Accelerating SpMV on real-world graphs remains challenging due to highly…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-11 Qi Zhang , Zhengan Yao , Zhenglu Jiang , Zan-Bo Zhang

Radiative transfer plays a key role in the star formation process. Due to a high computational cost, radiation-hydrodynamics simulations performed up to now have mainly been carried out in the grey approximation. In recent years,…

Instrumentation and Methods for Astrophysics · Physics 2015-05-27 Matthias González , Neil Vaytet , Benoît Commerçon , Jacques Masson

Deep neural networks have shown to be very vulnerable to adversarial examples crafted by adding human-imperceptible perturbations to benign inputs. After achieving impressive attack success rates in the white-box setting, more focus is…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Xu Han , Anmin Liu , Yifeng Xiong , Yanbo Fan , Kun He

The Gauss--Newton with approximated tensors (GNAT) method is a nonlinear model reduction method that operates on fully discretized computational models. It achieves dimension reduction by a Petrov--Galerkin projection associated with…

Numerical Analysis · Mathematics 2014-11-06 Kevin Carlberg , Charbel Farhat , Julien Cortial , David Amsallem

The development of Generalist Virtual Agents (GVAs) has shown significant promise in autonomous task execution. However, current training paradigms face critical limitations, including reliance on outcome supervision and labor-intensive…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Bingchen Miao , Yang Wu , Minghe Gao , Qifan Yu , Wendong Bu , Wenqiao Zhang , Yunfei Li , Siliang Tang , Tat-Seng Chua , Juncheng Li

We present an updated version of SKIRT, a 3D Monte Carlo radiative transfer code developed to simulate dusty galaxies. The main novel characteristics of the SKIRT code are the use of a stellar foam to generate random positions, an efficient…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Maarten Baes , Joris Verstappen , Ilse De Looze , Jacopo Fritz , Waad Saftly , Edgardo Vidal Pérez , Marko Stalevski , Sander Valcke

Transfer learning is a crucial technique for handling a small amount of data that is potentially related to other abundant data. However, most of the existing methods are focused on classification tasks using images and language datasets.…

Artificial Intelligence · Computer Science 2025-06-16 Sung Moon Ko , Sumin Lee , Dae-Woong Jeong , Woohyung Lim , Sehui Han