Results 91 to 100 of about 57,483 (180)

Machine Learning Model for an App‐Based Tool to Assist With the Diagnosis of Canine Atopic Dermatitis

open access: yesVeterinary Dermatology, Volume 37, Issue 2, Page 236-246, April 2026.
Canine atopic dermatitis (cAD) is a chronic condition requiring life‐long management. Accurate diagnosis can be challenging, with no reliable diagnostic test. This study aimed to generate a simple diagnostic model for cAD. This model is a relevant prototype for an app‐based tool to support general practitioners in the diagnosis of cAD alongside ...
Xavier Langon   +2 more
wiley   +1 more source

临床预测模型的展现形式

open access: yesZhongguo cuzhong zazhi
摘要: 预测模型是用来预测个体发生目标事件概率或预测结局值的统计模型。预测模型结果可视化展现是开发预测模型全流程中必不可少的一部分。良好的预测模型展现形式不仅可以使预测结果具有更好的可读性、可解释性,也在很大程度上决定了其使用方式和便利性。本文将详细介绍各种预测模型的展现形式,并阐述各自的优缺点。随后结合脑血管病临床预测模型研究,通过研究示例逐一介绍不同展现形式在脑血管病研究中的应用。 Abstract: A prediction model is a statistical model ...
金奥铭,谷鸿秋
doaj   +1 more source

Balancing Innovation and Control: Public Views on Risks and Governance of AI in Political Communication

open access: yesPolicy &Internet, Volume 18, Issue 1, March 2026.
ABSTRACT With the rise of AI, concerns about its potential for manipulation in political communication have intensified, accompanied by discussions about regulatory measures. Research has explored perceptions of risks and preferences regarding AI use and regulations among the general population, and in fields such as journalism.
Tobias Scherer   +3 more
wiley   +1 more source

基于遗传神经网络对运行线路绝缘子污秽度的预测

open access: yesDianci bileiqi, 2018
为了实现对输电线路上绝缘子污秽度的预测,提出一种基于遗传算法优化BP神经网络的绝缘子污秽度预测模型。鉴于BP算法在训练神经网络模型时其收敛速度慢、动态特性不够理想等不足,故本文提出利用遗传算法来提高预测的精度。本文不仅以风力、温度、降水量和相对湿度等气象因素作为输入量,同时也综合考虑空气质量指数(AQI)中PM2.5、PM10等环境因素指标作为输入量,以绝缘子盐密(ESDD)和灰密(NSDD)的预测值作为输出量,建立绝缘子污秽度的预测模型。结果表明:优化后的预测模型相较于BP神经网络模型预测更加准确。
王自立   +6 more
doaj  

南太平洋热带-副热带区斜压不稳定的多年代际趋势及其机制分析

open access: yesHaiyang yu huzhao
为了探究全球变暖对斜压不稳定的影响,本研究采用1°×1°的温度、盐度和流场格点数据,对1993~2022年南太平洋热带-副热带海区(south Pacific tropical-subtropical,SPTS)表层强化的Charney型斜压不稳定的长期变化趋势及其机制进行了分析。发现南太平洋热带区(south Pacific tropical,SPT)斜压不稳定的增长率表现出显著的减少趋势,每10 a减少0.12%,而南太平洋副热带区(South Pacific Subtropical,SPS ...
刘 丹丹   +3 more
doaj   +1 more source

Earnings Management Motivations and Economic Consequences of Goodwill Impairment: Empirical Evidence from Chinese A-share Market [PDF]

open access: yes, 2016
2006年2月,我国财政部颁布了《企业会计准则》,对商誉的后续处理采用与国际财务报告准则接轨的减值测试方法。商誉减值方法的运用,引起了理论界、实务界以及监管机构关于商誉会计处理方法优缺点的激烈争论。随着权益结合法的取消以及企业并购活动的日益活跃,商誉的经济意义凸显,商誉减值方法下的会计信息质量问题受到广泛关注,有必要厘清商誉减值的影响因素,探讨商誉减值的经济后果。本文基于中国制度背景,以2007-2013年A股上市公司为样本,实证检验了商誉减值的盈余管理动机,并基于投资者、分析师两类信息使用者视角 ...
卢煜
core  

Orthogonal Stimulus‐Responsive Ca3Ga2Ge3O12: Pr3+ for Real‐Time X‐Ray Dosimetry and Dynamic Information Encryption

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Multimodal luminescent materials are crucial for advanced information encryption, real‐time dosimetry, and high‐resolution bioimaging, yet integrating orthogonal stimulus‐responsiveness into a single‐component system is challenging. Herein, we report a Pr3+‐doped Ca3Ga2Ge3O12 (CGGO: Pr3+) garnet phosphor that exhibits orthogonally addressable ...
Qi Chen   +10 more
wiley   +1 more source

基于XGBoost算法的2型糖尿病精准预测模型研究

open access: yesZhongguo shiyan zhenduanxue, 2018
目的构建2型糖尿病发病风险预测模型。方法在体检人群中招募糖尿病患者53人,非糖尿病患者93人,体检的同时进行相应的基因检测,并填写健康体检自测问卷,收集全部数据采用XGBoost构建2型糖尿病预测模型。结果模型预测的准确率是86.6%,特征重要性评估结果显示,对模型贡献前三名的变量依次是血糖、甘油三酯和SLC30A8基因rs13266634-C位点的等位基因。结论 XGBoost糖尿病发病风险预测模型具有很强的预测能力。
张洪侠   +13 more
doaj  

Pricing Analysis of X Airport’s Parking Lot Based on Revenue Management [PDF]

open access: yes, 2016
随着全球经济一体化进程的加快,民用航空业在汇集客流、物流等方面对经济发展起着重要的促进作用。同时,随着航空业市场竞争的加剧,使得积极探索航空附属收益的空间更具价值。机场停车场作为机场服务的必要基础设施,不仅是机场运营管理的重点环节,更因其收益潜力将成为机场非航空收入的重要增长点。因此,研究机场的停车场收益问题,具有十分重要的意义。 本文基于收益管理的视角,首先介绍X机场停车场目前的收益情况,然后从该机场停车收费对旅客停车需求选择的影响进行分析,对停车收费和旅客开车前往X机场的选择行为模型进行了探讨 ...
林盛杰
core  

Ultrasound features in early pregnancy for predicting abnormal karyotype in first‐trimester miscarriage

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 3, Page 376-384, March 2026.
ABSTRACT Objective To investigate whether combining abnormal morphological features observed on ultrasound in live pregnancies that ended in a first‐trimester miscarriage can predict an abnormal karyotype. Methods This retrospective observational cohort study was conducted at the early‐pregnancy assessment unit at University College London Hospital ...
T. Setty   +5 more
wiley   +1 more source

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