Results 11 to 20 of about 59,031 (278)

Lightweight Gearbox Fault Diagnosis Under High Noise Based on Improved Multi-Scale Depthwise Separable Convolution and Efficient Channel Attention [PDF]

open access: yesSensors
Gearbox fault diagnosis under strong-noise conditions remains challenging due to the difficulty of extracting weak fault-related features from noise-dominated vibration signals, inefficient modeling of multi-scale impulsive characteristics under limited ...
Xiubin Liu   +4 more
doaj   +2 more sources

The Dirichlet divisor problem over square-free integers and unitary convolutions [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics, 2023
We obtain an asymptotic formula for the sum ~D₂ of the divisors of all square-free integers less than or equal to x, with error term O(x^{1/2 + ε}). This improves the error term O(x^{3/4 + ε}) presented in [7] obtained via analytical methods.
André Pierro de Camargo
doaj   +1 more source

Approximation of Free Convolutions by Free Infinitely Divisible Laws [PDF]

open access: yesTheory of Probability & Its Applications, 2021
Основываясь на методе сyбoрдинационных функций, мы получаем оценки минимальных ошибок аппроксимации $n$-кратных свободных сверток вероятностных мер безгранично делимыми свободными вероятностными мерами.
Chistyakov, Gennadiy, Götze, Friedrich
openaire   +3 more sources

DMPCONV: DECOUPLING MULTI-BRANCH POINTWISE CONVOLUTIONS FOR LIGHT-WEIGHT REMOTE SENSING SCENE CLASSIFICATION [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
The use of multi-branch architectures in off-the-shelf light-weight residual series neural networks can significantly improve their performance in remote sensing scene classification tasks.
J. Hou   +13 more
doaj   +1 more source

Adaptive Image Dehazing Algorithm Based on Dynamic Convolution Kernels [PDF]

open access: yesJisuanji kexue, 2023
Existing image dehazing methods generally have problems such as incomplete dehazing and color distortion.Image dehazing methods based on traditional deep learning models mostly use static inference during testing,which use the same and fixed parameters ...
LIU Zhe, LIANG Yudong, LI Jiaying
doaj   +1 more source

A Context-Free Grammar Associated with Fibonacci and Lucas Sequences

open access: yesJournal of Mathematics, 2023
We introduce a context-free grammar G=s⟶s+d,d⟶s to generate Fibonacci and Lucas sequences. By applying the grammar G, we give a grammatical proof of the Binet formula.
Harold Ruilong Yang
doaj   +1 more source

Cumulants for finite free convolution [PDF]

open access: yesJournal of Combinatorial Theory, Series A, 2018
In this paper we define cumulants for finite free convolution. We give a moment-cumulant formula and show that these cumulants satisfy desired properties: they are additive with respect to finite free convolution and they approach free cumulants as the dimension goes to infinity.
Octavio Arizmendi, Daniel Perales
openaire   +2 more sources

Numerical Analysis of Natural Frequency for U-Shaped Expansion Bellows in Fixed-Fixed and Fixed-Free Conditions

open access: yesDiyala Journal of Engineering Sciences, 2022
In this study, MATLAB code was used to analyze the natural frequency in two types of U-shape metal expansion bellows with various supporting conditions (fixed-fixed and fixed- free).
Mustafa Sabri Mohammed, Dhia A. Salal
doaj   +1 more source

Exemplar-Free Continual Transformer with Convolutions

open access: yes2023 IEEE/CVF International Conference on Computer Vision (ICCV), 2023
Continual Learning (CL) involves training a machine learning model in a sequential manner to learn new information while retaining previously learned tasks without the presence of previous training data. Although there has been significant interest in CL, most recent CL approaches in computer vision have focused on convolutional architectures only ...
Anurag Roy   +5 more
openaire   +2 more sources

Comprehensive Perturbation Approach to Nonlinear Viscous Gravity–Capillary Surface Waves at Arbitrary Wavelengths in Finite Depth

open access: yesFluids, 2023
This study presents a comprehensive analysis of the second-order perturbation theory applied to the Navier–Stokes equations governing free surface flows.
Arash Ghahraman, Gyula Bene
doaj   +1 more source

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