1) cluster center
类中心
1.
The fuzzy least square support vector machine (FLS-SVM) uses a fuzzy membership which is based on the distance of cluster center.
为提高预测精度,本文在最小二乘支持向量机中引入模糊思想,采用一种基于类中心距离的模糊隶属度函数,为青霉素发酵过程菌体浓度建立预测模型。
2.
However it is a greedy algorithm,which is sensitive to the choice of cluster center and is much easier to result in local optimization.
但是由于K-means方法对于初始中心点的选择非常敏感,有可能导致聚类结果收敛于局部,本文提出了一种基于遗传算法来对类中心点进行全局寻优的文档聚类算法。
2) anthropocentrism
[英][,ænθrəpə'sentrizəm] [美][,ænθrəpə'sɛntrɪzəm]
人类中心
1.
Ecological ethics originates from the reflection over the relationship between man and nature and its development has experienced a transition from the traditional anthropocentrism to modern anthropocentrism and to non-anthropocentrism.
生态伦理学源于对人与自然关系的反思,探究生态伦理发展轨迹,其价值维度经历了从传统人类中心主义到现代人类中心主义以及非人类中心主义的转变。
2.
We can give no cause for much criticism of the reprimand of anthropocentrism which is the basis for the theory of industrial development.
工业化过度发展造成日益严峻的环境问题不容置疑 ,作为工业化发展观理论基础的近代人类中心论观念受到责难也无可厚非。
3) clustering center
聚类中心
1.
New structure algorithm of clustering center and category determination method;
新的聚类中心构造算法及类别判定方法
2.
With the Kohonen network clustering in neural network employed, the degree of relationship of the universal joint axle of the rolling mill was input to Kohonen network as the training sample, studied and clustered by the network to generate different clustering centers according to the different depth and different degree of relationship among the cracks.
由于裂纹深度不同 ,裂纹故障的关联度不同 ,于是网络便产生不同的聚类中心点 。
3.
With the characteristics of the Kohonen network clustering in neural network,the degree of relationship of universal joint axis of rolling mill is input to Kohonen network as training sample,and is studied and clustered by the network to generate different clustering centers owing to the different depth and different degree of relationship among severity of crack.
利用神经网络中Kohonen网络聚类的特点,把小型轧机万向接轴裂纹故障的不同关联度,作为Kohonen网络的训练样本输入到Kohonen网络中去,并由Kohonen网络学习和聚类产生不同的聚类中心点。
4) cluster center
聚类中心
1.
Optimizing initial cluster center of K-means algorithm
优化初始聚类中心的K-means算法
2.
Since each single fault diagnosis method has its advantages and disadvantages,so after the immune system is applied to choosing hidden layer neural network data and getting a cluster center,then a suitable layer weight is selected,and neural network output is calculated,the output result shows that the diagnosis is effective.
近年来,神经网络在故障诊断领域中应用广泛,但任何单一的故障诊断方法都有其优点和缺点,因此将免疫系统应用于神经网络隐层数据中心的选择,训练得出聚类中心,然后选择一种合适的确定隐含层到输出层的权值,计算得出神经网络的输出,并根据输出结果诊断出故障的类型。
3.
The iterative expressions for cluster center and fuzzy membership are deduced respectively.
对K-HarmonicMeans算法进行扩展,考虑到数据点对不同类的隶属关系,将模糊的概念应用到聚类中,提出了模糊K-HarmonicMeans算法,推导出聚类中心和模糊隶属度的迭代公式。
5) central distance of class
类中心距
1.
Here coefficient was put for ward to eliminate the influence of the off-group point, which was also combined with the central distance of class, then formed the improved algorithm,which is used in large quantity of text classifica.
这里为消除类内离群点对分类的影响提出引入加权系数,并结合类中心距的概念提出改进算法,并将其应用到海量文本分类中去。
6) DX-like centers
类DX中心
补充资料：C24类甾醇类
分子式：
CAS号：
性质：胆汁酸属于类甾(或固)醇类，又称为C24类甾醇类。正常人胆汁中有结合胆汁酸和游离胆汁酸两大类，并以前者为主。游离胆汁酸有胆酸、脱氧胆酸和鹅脱氧胆酸等；结合胆汁酸系指上述胆汁酸以酰胺键(简称肽键)与甘氨酸或牛磺酸结合，分别成为甘氨胆酸或牛磺胆酸等。这些化合物存在于大多数脊椎动物中，是“胆苦”的主要成分。结合胆汁酸易溶于水，这是由于其分子中既含有亲水的羟基和羧基，又含有疏水的甲基，且这两种性质不同的基团又完全排列在环戊烷多氢菲核的两侧，使分子分为“亲水”和“疏水”两个侧面。故结合胆汁酸具有强乳化剂功能，使肠腔内油脂乳化成微粒，以增加油脂与消化液中脂肪酶(lipase)接触面积而便于脂类消化吸收，同时也促进对脂溶性维生素的吸收。
CAS号：
性质：胆汁酸属于类甾(或固)醇类，又称为C24类甾醇类。正常人胆汁中有结合胆汁酸和游离胆汁酸两大类，并以前者为主。游离胆汁酸有胆酸、脱氧胆酸和鹅脱氧胆酸等；结合胆汁酸系指上述胆汁酸以酰胺键(简称肽键)与甘氨酸或牛磺酸结合，分别成为甘氨胆酸或牛磺胆酸等。这些化合物存在于大多数脊椎动物中，是“胆苦”的主要成分。结合胆汁酸易溶于水，这是由于其分子中既含有亲水的羟基和羧基，又含有疏水的甲基，且这两种性质不同的基团又完全排列在环戊烷多氢菲核的两侧，使分子分为“亲水”和“疏水”两个侧面。故结合胆汁酸具有强乳化剂功能，使肠腔内油脂乳化成微粒，以增加油脂与消化液中脂肪酶(lipase)接触面积而便于脂类消化吸收，同时也促进对脂溶性维生素的吸收。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条