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In modern communication systems operating with Orthogonal Frequency-Division Multiplexing (OFDM), channel estimation requires minimal complexity with one-tap equalizers. However, this depends on cyclic prefixes, which must be sufficiently…

This paper proposes a novel module called middle spectrum grouped convolution (MSGC) for efficient deep convolutional neural networks (DCNNs) with the mechanism of grouped convolution. It explores the broad "middle spectrum" area between…

计算机视觉与模式识别 · 计算机科学 2023-04-14 Zhuo Su , Jiehua Zhang , Tianpeng Liu , Zhen Liu , Shuanghui Zhang , Matti Pietikäinen , Li Liu

Despite the effectiveness of convolutional neural networks (CNNs) especially in image classification tasks, the effect of convolution features on learned representations is still limited. It mostly focuses on the salient object of the…

计算机视觉与模式识别 · 计算机科学 2017-07-04 Qing Li , Qiang Peng , Chuan Yan

Calculations on atomistic scale are necessary for understanding of physical phenomena occurring during advanced processing of liquids, slurries, and nano-ceramics composite materials. This paper describes some new ideas for using the…

软凝聚态物质 · 物理学 2007-05-23 Wilfried Wunderlich

This work focuses on the quantitative contraction rates for McKean-Vlasov stochastic differential equations (SDEs) with multiplicative noise. Under suitable conditions on the coefficients of the SDE, this paper derives explicit quantitative…

概率论 · 数学 2025-09-30 Dan Noelck

Steerable convolutional neural networks (SCNNs) enhance task performance by modelling geometric symmetries through equivariance constraints on weights. Yet, unknown or varying symmetries can lead to overconstrained weights and decreased…

机器学习 · 计算机科学 2025-05-09 Lars Veefkind , Gabriele Cesa

This paper considers vector network coding based on rank-metric codes and subspace codes. Our main result is that vector network coding can significantly reduce the required field size compared to scalar linear network coding in the same…

信息论 · 计算机科学 2016-05-16 Tuvi Etzion , Antonia Wachter-Zeh

In this paper, we consider the asymptotic and finite-length performance of block Markov superposition transmission~(BMST) of short codes, which can be viewed as a new class of spatially coupled~(SC) codes with the generator matrices of…

信息论 · 计算机科学 2015-04-14 Kechao Huang , Xiao Ma

This work shows how non-binary low-density parity-check codes over GF($2^p$) can be combined with probabilistic amplitude shaping (PAS) (B\"ocherer, et al., 2015), which combines forward-error correction with non-uniform signaling for…

信息论 · 计算机科学 2017-08-21 Fabian Steiner , Gianluigi Liva , Georg Böcherer

An end-to-end learning method for constellation shaping with a shaping-encoder assisted transceiver architecture is presented. The shaping encoder, which produces shaping bits with a higher probability of zeros, is used to produce an…

信息论 · 计算机科学 2025-10-28 Harindu Jayarathne , Dileepa Marasinghe , Nandana Rajatheva , Matti Latva-aho

We dynamically simulate fractionation (partitioning of particle species) during spinodal gas-liquid separation of a size-polydisperse colloid, using polydispersity up to ~40% and a skewed parent size distribution. We introduce a novel…

软凝聚态物质 · 物理学 2015-06-22 John J. Williamson , R. Mike L. Evans

Three-dimensional Voronoi analysis is used to quantify the clustering of inertial particles in homogeneous isotropic turbulence using data from numerics and experiments. We study the clustering behavior at different density ratios and…

We present and analyze the performance of constellation precoded beamforming. This multi-input multi-output transmission technique is based on the singular value decomposition of a channel matrix. In this work, the beamformer is precoded to…

信息论 · 计算机科学 2009-03-30 Hong Ju Park , Ender Ayanoglu

Convolutional Neural Networks (CNNs) were recently shown to provide state-of-the-art results for object category viewpoint estimation. However different ways of formulating this problem have been proposed and the competing approaches have…

计算机视觉与模式识别 · 计算机科学 2016-09-14 Francisco Massa , Renaud Marlet , Mathieu Aubry

Beamforming techniques that employ Singular Value Decomposition (SVD) are commonly used in Multi-Input Multi-Output (MIMO) wireless communication systems. In the absence of channel coding, when a single symbol is transmitted, these systems…

信息论 · 计算机科学 2009-11-05 Hong Ju Park , Boyu Li , Ender Ayanoglu

Rock classification plays an important role in rock mechanics, petrology, mining engineering, magmatic processes, and numerous other fields pertaining to geosciences. This study proposes a concatenated convolutional neural network (Con-CNN)…

图像与视频处理 · 电气工程与系统科学 2020-03-25 Cheng Su , Sheng-jia Xu , Kong-yang Zhu , Xiao-can Zhang

Data center networks (DCNs) require a low-cost, low-power optical transceiver to handle increased traffic from generative artificial intelligence, video streaming services, and more. Improving the required signal-to-noise ratio (RSNR) by…

信号处理 · 电气工程与系统科学 2025-09-09 Takeshi Kakizaki , Masanori Nakamura , Fukutaro Hamaoka , Shuto Yamamoto , Etsushi Yamazaki

Constant dimension codes (CDCs) have become an important object in coding theory due to their application in random network coding. The multilevel construction is one of the most effective ways to construct constant dimension codes. The…

信息论 · 计算机科学 2025-11-03 Dengming Xu , Mengmeng LI

Approaching Shannon's capacity via geometric shaping has usually been regarded as challenging due to modulation and demodulation complexity, requiring look-up tables to store the constellation points and constellation bit labeling. To…

信号处理 · 电气工程与系统科学 2024-01-25 Ali Mirani , Erik Agrell , Magnus Karlsson

We discuss a method to construct quantum codes correcting amplitude damping errors via code concatenation. The inner codes are chosen as asymmetric Calderbank-Shor-Steane (CSS) codes. By concatenating with outer codes correcting symmetric…

量子物理 · 物理学 2016-10-31 Tyler Jackson , Markus Grassl , Bei Zeng