[Comparison of preoperative nutritional scoring systems for predicting survival in upper tract urothelial carcinoma]. [PDF]
Guo Z, Sun C, Lai S, Gao H, DU Y, Xu T.
europepmc +1 more source
[Diagnostic value of IT-MAIS scores by logistic regression and ROC curve in predicting the degree of hearing loss in infants and toddlers aged 0-36 months]. [PDF]
Gu H +5 more
europepmc +1 more source
An Improved Method for Bandwidth Selection when Estimating ROC Curves [PDF]
The receiver operating characteristic (ROC) curve is used to describe the performance of a diagnostic test which classifies observations into two groups.
Peter Hall, Rob J. Hyndman
core
[Clinical study of serum N-terminal propeptide of type Ⅲ collagen combined with platelet count for the diagnosis of chronic hepatitis B-related liver fibrosis]. [PDF]
Bai X +7 more
europepmc +1 more source
[Development of a nomogram prediction model for re-tear after arthroscopic repair of massive rotator cuff tears]. [PDF]
Yang Z +5 more
europepmc +1 more source
[Development and validation of an explainable machine learning-based model for predicting mortality risk in polytrauma patients]. [PDF]
Jiang Y +7 more
europepmc +1 more source
给出了n+1( n>=1) 次带形状参数的多项式调配函数, n 次Bezier 曲线的基函数是它的一特例. 由给出的调配函数,建立了带形状参数的分段多项式曲线生成方法. 研究了所生成曲线及其调配函数的性质. 其调配函数具有权性和非负性;曲线的性质如端点性质、对称性、凸包性、几何不变性等与bezier 曲线的性质类似.
曾晓明, 程黄和
core
【目的】 探讨乳腺癌超声光散射断层成像综合诊断指数(SDI)与微血管密度(MVD)的关系以及它们与临床病理特征的关系【方法】 采用超声光散射断层成像系统,研究131例乳腺良性肿块及142例乳腺癌患者,测量超声光散射断层成像综合诊断指数通过受试者工作特征曲线(ROC)确定乳腺癌的最佳诊断阈值使用免疫组化法检测乳腺癌CD105标记的微血管密度【结果】 乳腺良性疾病与乳腺癌的SDI值分别:109 ± 48191 ± 60两者之间的差异有统计学意义(P < 0.05)经ROC曲线分析可得 ...
doaj
[Risk factors for perioperative acute kidney injury following partial nephrectomy in patients with stage 3 chronic kidney disease]. [PDF]
Xiao R +5 more
europepmc +1 more source
介绍了用于具有半闭环结构数控机床加工椭圆曲线的一种新型编程方法。此方法采用“虚拟轴”概念,通过将圆在某一坐标轴方向均匀压缩或扩大若干倍实现椭圆曲线的数控加工。同其它编程方法相比,该方法具有编程简单 ...
邱继红
core

