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云计算环境下基于X-means优化聚类的海量多源异构数据分类

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北部湾大学学报 2024年第2期39卷 40-46页

作者：陶迎松安徽工商职业学院信息化建设与发展处安徽合肥231131

大数据分类算法在处理海量多源异构数据时存在精度差、效率低等问题,为此提出了一种在云计算环境下基于X-means的优化聚类算法。先构建云计算框架体系,包括用户层、应用层、平台层、资源层和后台管理层;基于RF优化算法对多源异构数据集... 详细信息

大数据分类算法在处理海量多源异构数据时存在精度差、效率低等问题,为此提出了一种在云计算环境下基于X-means的优化聚类算法。先构建云计算框架体系,包括用户层、应用层、平台层、资源层和后台管理层;基于RF优化算法对多源异构数据集做融合预处理,降低泛化误差的同时也能实现对数据集的粗分类;基于X-means优化聚类算法计算出数据聚类数量上下限值,不但提升数据训练的效率和降低算法的复杂度,还使距离平均误差值得到较好的控制。在实验室搭建了1个master节点和5个slave节点的云框架,实验结果显示,提出的分类算法在处理海量多源异构数据集时具有更强的分类精度和抗漂移性,同时在分类效率方面也具有一定优势。

关键词：云计算 X-means优化聚类 RF优化算法融合预处理距离平均误差值

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Ion-bunch energy acoustic tracing by modulation of the depth-dose curve

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高功率激光科学与工程:英文版 2023年第3期11卷 86-93页

作者： A.praßelsperger F.Balling H.-P.Wieser K.Parodi J.Schreiber Fakultät für Physik Ludwig-Maximilians-Universität MünchenGarchingGermany

Characterizing exact energy density distributions for laser-accelerated ion bunches in a medium is challenging due to very high beam intensities and the electro-magnetic pulse emitted in the laser-plasma ***-bunch energy acoustic tracing allows for reconstructing the spatial energy density from the ionoacoustic wave generated upon impact in *** have extended this approach to tracing ionoacoustic modulations of broad energy distributions by introducing thin foils in the water reservoir to shape the acoustic waves at distinct points along the depth-dose ***,we present first simulation studies of this new detector and reconstruction approach,which provides an online read-out of the deposited energy with depth within the centimeter range behind the ion source of state-of-the-art laser-plasma-based accelerators.

关键词： ion-bunch energy acoustic tracing ion detector ionoacoustics laser-ion acceleration

Organizational Culture and Favorable Environment for the Development of Innovations

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Social Networking 2022年第2期11卷 15-32页

作者： Manuel Fernandes Neto Denise Del pra Netto Machado University of Southern Santa Catarina S&#227 o Paulo Brazil

The objective of the research dialogues with recent studies on the presence of a favorable environment for innovation while respecting and guided by theoretical perspectives that were built by classic authors in this field of research, such as Geert Hofstede and Edgar Schein. 258 questionnaires were answered and the data obtained were analyzed using structural equation modeling (SEM) after tabulation in statistical analysis software. The research model is quantitative-descriptive and is based on the methodology developed by MIRP and later adapted by other authors. As a result of this research, it was identified that employees perceive the culture of the analyzed organization with a high level of collectivism and high cultural congruence. It was found that employees have a perception that there is a small power distance. At the end of the research, it is possible to affirm that there is a relationship between the organizational culture and the favorable environment for the development of innovations in the analyzed company.

关键词： Organizational Culture Innovation Innovation Environment

Implementing Symmetries of a Free Bose field via White Noise Operators

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Acta Mathematica Sinica,English Series 2003年第1期19卷 147-158页

作者： ShunLongLU0 InstituteofAppliedMathematics AcademyofMathematicsandSystemSciencesChineseAcademyofSciencesBeijing1

Linear symmetries of a free Bose field are exploited in the framework of Hida's white noise functionals triple. General symplectic automorphisms on the single particle space are implemented by generalized operators. The intertwining operators are constructed in a physically intuitive way, characterized analytically in terms of symbols, and factorized into three fundamental parts according to Wick ordering procedure. In particular, the classical Shale's theorem is rederived.

关键词： Free Bose field Symplectic automorphisms Symbols Gaussian Kernel operators 60H07 81R10 81T05

团队干预对乳腺癌化疗后置入PICC导管患者并发症的影响

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甘肃医药 2024年第4期43卷 364-366页

作者：韩恩玉李小宁王妮尤建霞余珍甘肃省肿瘤医院甘肃兰州730050

目的:研究乳腺癌化疗后置入PICC导管患者应用护理团队干预结合视频宣教对其依从性、自我护理能力以及并发症的影响。方法:选取本院2020年12月至2021年12月收治的乳腺癌化疗后置入PICC导管的患者62例。根据电脑随机方式将其分为参照组(... 详细信息

目的:研究乳腺癌化疗后置入PICC导管患者应用护理团队干预结合视频宣教对其依从性、自我护理能力以及并发症的影响。方法:选取本院2020年12月至2021年12月收治的乳腺癌化疗后置入PICC导管的患者62例。根据电脑随机方式将其分为参照组(常规护理)和观察组(护理团队干预联合视频宣教),每组31例。对比护理前后依从性和自我护理能力评分以及并发症发生情况。结果:两组患者护理前依从性差别无统计学意义(P>0.05),观察组护理后依从性比参照组高(P0.05);两组护理前自护能力差别无统计学意义(P>0.05),观察组护理后自护能力明显比参照组高(P0.05);观察组并发症发生率比参照组低(P0.05)。结论:护理团队干预联合视频宣教可以有效改善患者的依从性,强化自护能力,安全性高,值得推广和使用。

关键词：护理团队干预视频宣教乳腺癌自护能力

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A New Approach to Nonlinear Partial Differential Equations

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Communications in Nonlinear Science and Numerical Simulation 1997年第4期2卷 230-235页

作者： Jihuan HE (Shanghai University,Shanghai Institute of Applied Mathematics and Mechanics,Shanghai 2 0 0 0 72 ,China) Shanghai University Shanghai Institute of Applied Mathematics and Mechanics Shanghai 200072 China

In this paper,a novel method called variational iteration method is proposed to solve nonlinear partial differential equations without linearization or small *** this method,a correction functional is constructed by a general Lagrange multiplier,which can be identified via variational *** analytical solution can be obtained from its trial- function with possible unknown constants,which can be identified by imposing the boundary conditions,by successively iteration.

关键词： Nonlinear Problems Partial Differential Equations Variational Iteration Method Variational Theory

Valued Gabriel quiver of a wedge product and semiprime coalgebras

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Frontiers of Mathematics in China 2013年第5期8卷 1157-1183页

作者： Gabriel NAVARR0 Department of Computer Sciences and AI University of Granada E1 Greco s/n E-51002Ceuta Spain

We describe the valued Gabriel quiver of a wedge product of coalgebras and study the category of comodules of a semiprime coalgebra. In particular, we prove that any monomial semiprime k-tame fc-tame coalgebra is string. We also prove a version of Eisenbud-Griffith theorem for coalgebras, namely, any hereditary semiprime strictly quasi-finite coalgebra is serial.

关键词： Wedge product semiprime coalgebras representation theory,valued Gabriel quiver

Variational Iteration Method for Delay Differential Equations

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Communications in Nonlinear Science and Numerical Simulation 1997年第4期2卷 235-236页

The variational iteration method is shown to be applicable to delay differential equations for analytical approximate solutions

关键词： Variational Iteration Method for Delay Differential Equations

Ion-bunch energy acoustic tracing by modulation of the depth-dose curve

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High Power Laser Science and Engineering 2023年第3期 90-97页

作者： A.pra?elsperger F.Balling H.-P.Wieser K.Parodi J.Schreiber Fakult?t für Physik Ludwig-Maximilians-Universit?t München

Characterizing exact energy density distributions for laser-accelerated ion bunches in a medium is challenging due to very high beam intensities and the electro-magnetic pulse emitted in the laser±plasma interaction. Ion-bunch energy acoustic tracing allows for reconstructing the spatial energy density from the ionoacoustic wave generated upon impact in water. We have extended this approach to tracing ionoacoustic modulations of broad energy distributions by introducing thin foils in the water reservoir to shape the acoustic waves at distinct points along the depth-dose curve. Here, we present first simulation studies of this new detector and reconstruction approach, which provides an online read-out of the deposited energy with depth within the centimeter range behind the ion source of state-of-the-art laser-plasma-based accelerators.

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