中文
相关论文

相关论文: Two Methods for Decreasing the Computational Compl…

200 篇论文

We present a detailed analysis of a new, iterative density reconstruction algorithm. This algorithm uses a decreasing smoothing scale to better reconstruct the density field in Lagrangian space. We implement this algorithm to run on the…

宇宙学与河外天体物理 · 物理学 2024-09-19 Xinyi Chen , Nikhil Padmanabhan

Low-resolution precoding techniques have gained considerable attention in the wireless communications area recently. Vital but hardly discussed in literature, discrete precoding in conjunction with channel coding is the subject of this…

信息论 · 计算机科学 2021-05-21 Erico S. P. Lopes , Lukas T. N. Landau

Tensor factorization with hard and/or soft constraints has played an important role in signal processing and data analysis. However, existing algorithms for constrained tensor factorization have two drawbacks: (i) they require…

数值分析 · 数学 2024-07-01 Shunsuke Ono , Takuma Kasai

This paper seeks an efficient algorithm for stochastic precoding to maximize the long-term average weighted sum rates throughout a multiple-input multiple-output (MIMO) network. Unlike many existing works that assume a particular…

信息论 · 计算机科学 2026-03-10 Wenyu Wang , Kaiming Shen

An adaptive iterative decision multi-feedback detection algorithm with constellation constraints is proposed for multiuser multi-antenna systems. An enhanced detection and interference cancellation is performed by introducing multiple…

信息论 · 计算机科学 2013-04-24 Peng Li , Jingjing Liu , Rodrigo C. de Lamare

LSMR is a widely recognized method for solving least squares problems via the double QR decomposition. Various preconditioning techniques have been explored to improve its efficiency. One issue that arises when implementing these…

数值分析 · 数学 2024-08-30 Mei Yang , Gul Karaduman , Ren-Cang Li

In this paper we estimate the performance of 2*4 MIMO-MC-CDMA system using convolution code in MATLAB which highly reduces BER. MC-CDMA (Multi Carrier Code Division for Multiple Access) is a multiuser and multiple access system which is…

信息论 · 计算机科学 2014-07-24 Atul Singh Kushwah , Priya Rathore , Ramsewak Kumar

In recent works on semantic segmentation, there has been a significant focus on designing and integrating transformer-based encoders. However, less attention has been given to transformer-based decoders. We emphasize that the decoder stage…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Jing Xu , Wentao Shi , Pan Gao , Zhengwei Wang , Qizhu Li

Discrete Cosine Transform (DCT) can be used instead of conventional Discrete Fourier Transform (DFT) for the Orthogonal Frequency Division Multiplexing (OFDM) construction, which offers many advantages. In this paper, the…

信息论 · 计算机科学 2023-11-28 Khaled Ramadan

In this paper, we propose a Riemannian steepest descent method for solving a blind deconvolution problem. We prove that the proposed algorithm with an appropriate initialization will recover the exact solution with high probability when the…

信息论 · 计算机科学 2018-04-17 Wen Huang , Paul Hand

This paper adapts a Multiple-Model Coding (MMC) approach for sampled electrical signal waveforms to satisfy reconstructed signal quality constraints. The baseline MMC approach consists of two stages processing vectors of Voltage and Current…

信号处理 · 电气工程与系统科学 2025-11-14 Corentin Presvôts , Michel Kieffer , Thibault Prevost

Matrix decompositions in dual number representations have played an important role in fields such as kinematics and computer graphics in recent years. In this paper, we present a QR decomposition algorithm for dual number matrices,…

数值分析 · 数学 2024-04-23 Renjie Xu , Tong Wei , Yimin Wei , Pengpeng Xie

To address the issue of excessive quantum resource requirements in Kuperberg's algorithm for the dihedral hidden subgroup problem, this paper proposes a distributed algorithm based on the function decomposition. By splitting the original…

量子物理 · 物理学 2025-03-11 Pengyu Yang , Xin Zhang , Song Lin

In this paper, we propose a new nonlinear detector with improved interference suppression in Multi-User Multiple Input, Multiple Output (MU-MIMO) system. The proposed detector is a combination of the following parts: QR decomposition (QRD),…

其他计算机科学 · 计算机科学 2020-09-29 Andrey Ivanov , Alexander Osinsky , Dmitry Lakontsev , Dmitry Yarotsky

We consider the distributed source coding problem in which correlated data picked up by scattered sensors has to be encoded separately and transmitted to a common receiver, subject to a rate-distortion constraint. Although near-tooptimal…

信息论 · 计算机科学 2008-09-09 G. Maierbacher , J. Barros

In this paper, the spectral efficiency of permutation modulation-based multiple input multiple output (MIMO) visible light communication is improved using systematically designed, multiweight codeword matrices. Soft-decision, low-complexity…

信号处理 · 电气工程与系统科学 2020-07-01 Oluwafemi Kolade , Ling Cheng

Integer factorization is a famous computational problem unknown whether being solvable in the polynomial time. With the rise of deep neural networks, it is interesting whether they can facilitate faster factorization. We present an approach…

机器学习 · 计算机科学 2023-09-12 Karlis Freivalds , Emils Ozolins , Guntis Barzdins

The prevalence of digital sensors, such as digital cameras and mobile phones, simplifies the acquisition of photos. Digital sensors, however, suffer from producing Moire when photographing objects having complex textures, which deteriorates…

计算机视觉与模式识别 · 计算机科学 2019-09-27 Xi Cheng , Zhenyong Fu , Jian Yang

Multi-scale architecture, including hierarchical vision transformer, has been commonly applied to high-resolution semantic segmentation to deal with computational complexity with minimum performance loss. In this paper, we propose a novel…

计算机视觉与模式识别 · 计算机科学 2024-06-17 Jiwon Yoo , Jangwon Lee , Gyeonghwan Kim

Quantum processors are potentially superior to their classical counterparts for many computational tasks including factorization. Circuit methods as well as adiabatic methods have already been proposed and implemented for finding the…

量子物理 · 物理学 2019-09-25 Soham Pal , Saranyo Moitra , V. S. Anjusha , Anil Kumar , T. S. Mahesh