discriminant analysis
[数] 判别分析
2025-08-11 09:31 浏览次数 5
[数] 判别分析
linear discriminant analysis (lda) is an effective feature extraction method, but there exist at least two critical drawbacks in it: small sample size problem and rank limitation.
线性判别分析是一种有效的特征提取方法,但其存在两个缺陷:小样本问题和秩限制问题。
a linear discriminant function was obtained with stepwise discriminant analysis and variables of gm fraction entered the function(p01)with a discriminative accuracy of 76. 9% .
多元逐步判别分析显示脑灰质百分比具有显着性判别意义,两组判别总正确率为76。 9%。
discriminant analysis shows that: the level of social welfare of persons with disabilities is not always in accordance with the country's eastern, central and western division.
可以发现,各省份残疾人社会福利水平打破了经济上东部、中部、西部地区的划分。
fisher discriminant analysis was applied in sensors fault diagnosis. information between fault classes was considered which shows that fda is more proficient than pca for diagnosis faults.
最后采用费舍尔判别分析的方法,该方法在建模时考虑到了故障类之间的信息,在故障诊断方面比pca更具有优势。
a computerized apparatus for making the determination preferably using a probability density function generated from a set of reference data by a linear discriminant analysis procedure is disclosed.
一个计算机化的设备、最好用由一组标準数据通过线性判别分析处理得到的一个概率密 度函数、来进行判断。
the algorithm based on lbp and direct linear discriminant analysis have distinct advance than the extraction algorithm using the original image in recognition rate.
采用lbp算法与直接线性判别分析算法相结合的人耳特征提取方法在识别率方面与原始图像特征提取方法相比有明显提升。
a new algorithm, namely kernel machine-based one-parameter multiple discriminant analysis (k1pmda), to extract optimal discriminant features was proposed and applied to face recognition.
提出了一种基于核技术的求多元区别分析最佳解的k1pmda算法,并把这一算法应用于人脸识别中。
the discriminant analysis on inorganic element abundance shows that the palaeosedimentary environment of jurassic in the yanqi basin is close to that of dongying sag.
萨胡判别分析证明,与煤共生的粗碎屑巖不是形成于河流环境,而是形成于深水浊积沉积环境。
the results of chemical experiment and toxic detection showed: succeed propartion of first discriminant analysis is 95.8%, succeed propartion of second discriminant is 83.3 %.
化学实验和毒性测定结果表明:第一次判别分析成功率为95.8%,第二次判别为83.3%。
furthermore, discriminant analysis indicated that it was the underlying construct of updating and switching that contribute most to the group differences in early mathematical ability.
进一步判别分析表明,对早期数学能力差异分组贡献最大的并非独立执行功能子结构,而是更新和转换的共同因素结构。
to deal with pattern classification of complicated mechanical faults, an approach to multi-faults classification based on non-linear discriminant analysis is presented.
针对复杂机械故障的模式分类问题,提出一种基于非线性判别的多故障分类方法。
correspondence analysis technique is more suitable to the research of tcm syndrome than chi-square test, discriminant analysis regression analysis, factor analysis.
对应分析技术与一般的卡方检验、判别分析、回归分析、因子分析等方法相比更适合中医证候的研究。
select the items through the discrete trend analysis, factor analysis, stepwise regression analysis, discriminant analysis and crowns bach coefficient method to the survey result.
通过对调查结果进行离散趋势分析、因子分析、逐步回归分析、判别分析法和克朗巴赫系数法等分析方法筛选条目。
chapter 2 introduces and analyzes the basic numerical methods used in my model:sampling method, variable selections, uni-variant discriminant analysis and multi-variantdiscriminant analysis.
第二部分介绍了判别分析的基本方法:抽样方法、变量的选择方法、单变量判别法及多变量判别法等等。