查询词典 logistic

Univariate and multivariate Logistic regression model were used to identify risk factors.

采用多因素Logistic回归分析可能存在的危险因素。

The available data were analyzed by univariate and multivariate Logistic regression model.

研究因素采用条件Logistic回归单因素和多因素分析。

Univariate analysis and Logistic analysis were employed to evaluate the risk factors for asthma.

危险因素经单变量分析后，将统计学上有意义的危险因素进行Logistic回归分析。

We used univariate analysis and logistic regression analysis to study the relationship between restenosis and 23 factors of coronary angiographic characteristics.

用单因素和Logistic多因素逐步回归分析方法分析了病人冠状动脉造影的23个变量与再狭窄的关系。

To increase the security of the watermark, a new binary image encryption algorithm based on TD-ERCS map is presented. The watermark is encrypted by a chaos sequence generated by TD-ERCS map; A novel color image watermarking algorithm is proposed based on discrete chaotic map and 2-dimensions discrete wavelet transform. The watermark is encrypted by the new binary image encryption algorithm, and the encrypted watermark is embed into four sub-bands of the most deep level of blue branch of host image by three-level wavelet transform, and the embedded positions are determined by general cat cha otic map; A novel color-image blind detection watermarking algorithm is proposed based on integer wavelet transform and subsampling. The scrambled watermark is encrypted and embed into the low sub-bands after four sub-images of the Y branch of host image is transformed by two-level wavelet transform, and the embedded positions are determined by Logistic chaotic map, this watermarking scheme can realize blind extraction.

为了提高水印图像的安全性，提出了一种基于TD-ERCS混沌映射的二值水印图像的加密算法，该算法利用TD-ERCS映射产生的混沌序列加密水印图像；将离散混沌映射和二维离散小波变换相结合，研究了彩色图像水印新算法，该算法先对混沌序列加密后的水印图像进行小波变换，再嵌入到宿主图像的蓝色分量的最深层的四个子带中，嵌入位置则由广义猫映射确定；将整数小波变换和图像子采样技术应用于数字水印，提出了一种彩色图像盲提取水印算法，水印嵌入时，先对宿主图像在YIQ色彩空间中的Y分量进行子采样，并对得到的四个子图像分别进行二级离散小波变换，然后将置乱并加密后的水印图像嵌入到小波变换后的低频子带中，其嵌入位置由Logistic混沌映射产生的混沌序列确定，实现了水印的盲提取。

This paper summarizes the commonly math model, Hedonic model and Logistic model for this problem.And simply analyses the three percepts' advantages and disadvantages.

本文总结了针对此问题的一般数学模型、Hedonic模型、Logistic模型等三种决策模型，并简单地分析了这三种方案的优缺点。

Firstly, the steady state statistical properties of the logistic growth model with colored noise are analyzed when the unified colored noise approximation is applied. It is found that the noise correlation time and the coupling between noise terms can induce first-order-like phase transition and re-entrance phase transition phenomenon.

首先，用统一色噪声近似理论分析了含有色噪声的Logistic 增长模型的定态分布函数，发现噪声相关时间τ和噪声间的耦合λ均能诱导一级相变类比和重复相变现象。

Soil and water conservation ; farmer households' behavior ; farmer households' off-farm work ; resources use ; Logistic model

水土保持；农户行为；农户兼业；资源利用； Logistic模型

A conditional logistic regression showed breast-feeding、time of adding supplemented food、father' occupation、radio set、often eating vegetable and egg to be positive factors,however, disease、diarrhea in tow wages to be risk factors.

经条件的Logistic分析，选入模型的有9个变量，母乳喂养、正确添加辅食时间、父亲的职业、家中有收音机、经常吃蔬菜、每周摄入鸡蛋的频率是营养不良的保护因素，而经常生病、两周内患腹泻及其他疾病是营养不良的危险因素。

Type 2 diabetes mellitus ; case control study ; logistic regression analysis

2型糖尿病；病例对照研究； Logistic回归分析

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。