1) sparse characteristics
稀疏特性
1.
Storage and computation efficiency and computation efficiency of the normal form method are analyzed by studying the sparse characteristics of dynamic mathematic models and normal form algorithm models of power systems.
通过分析电力系统动态数学模型和正规形算法模型的稀疏特性,探讨了正规形算法的存储效率和计算效率问题。
2.
The authors investigated the relations between the traditional window functions and the spectrum sparse characteristics after DFT,and put forward two sparse characteristics′ criterions based on the width of leakage spectrum frequency band and the number of effective spectrum lines.
由于信号的稀疏特性有效地用于盲信号分离中,所以稀疏特性受到普遍的关注。
2) sparse feature
稀疏特征
1.
Dynamic clustering method on the basis of sparse feature;
基于属性稀疏特征差异度的动态抽象聚类方法
2.
The sparse feature difference degree and the minimum cost spanning tree are used to resolve the problem of high attribute dimensional data clustering which exists in information classifying,in order to support the central idea,an example is given in the paper.
针对文本信息聚类中的高属性维稀疏数据聚类问题,采用计算对象间稀疏特征差异度来度量文本对象之间的相关度,结合最小生成树的方法来进行聚类分析,提出一种基于稀疏特征差异度的聚类方法。
3.
The learning of the weight matrix be done by means of finding weight matrix of equal matrix,and elements of initials weight matrix consist of sparse feature difference degree,so a sparse feature difference degree is given.
针对高属性维稀疏数据聚类问题 ,定义了模糊取大逻辑神经元 ,给出一种新的单层离散型回归逻辑神经网络模型 ,由稀疏特征差异度组成的相似阵作为该网络的初始权矩阵 ,通过单层离散型回归逻辑神经网络学习算法 ,可求出相似矩阵的等价阵 ,根据等价阵 ,给定不同的阈值 ,可动态地、有效地实现对高属性维稀疏数据的归并 ,使得聚类结果更符合实际情况 ,聚类质量较高 。
3) sparse
[英][spɑ:s] [美][spɑrs]
稀疏性
1.
At the same time,the result of the experiment demonstrates that the matrix obtained by using the orthogonal Daubechies wavelet packets to decompose is more sparse.
利用小波—Galerkin积分法,第一次给出了用区间上的小波包解第二类积分方程的算法实例,并与小波解积分方程得到的结果进行比较,实验结果表明条件数更小,稳定性更好;同时讨论了解法中方程组的系数矩阵的稀疏性,小波包得到的矩阵更稀疏。
2.
A pruning algorithm is proposed to enhance computational efficiency and sparse ability.
通过剪枝算法提高其快速性和稀疏性,并用遗传算法搜索向量机的参数,避免了参数选择的盲目性,获得了最优的参数,提高了预测能力。
4) Sparsity
[英]['spɑ:siti] [美]['spɑrsətɪ]
稀疏性
1.
Research of Sparsity and Cold Start Problem in Collaborative Filtering;
协同过滤系统的稀疏性与冷启动问题研究
2.
Owing to its sparsity of structure,new matrix greatly simplifies the projection operation during images reconstruction,which greatly improving the speed of reconstruction.
该矩阵由于其构成的非常稀疏性大大简化了图像重建过程中的投影计算,从而提高重建速度。
3.
Attributing to the merit of the L_1 norm,a good sparsity is achieved by the SHSSVM.
由于L1范数具有诱导稀疏性的本质,使得稀疏隐空间支持向量机获得了良好的稀疏性。
5) sparseness
[英]['spɑ:snis] [美]['spɑrsnɪs]
稀疏性
1.
Sparseness Analysis of Radar Echoes and its Application in Ship and Chaff Discrimination
雷达回波稀疏性分析及其在舰船与箔条云鉴别中的应用
2.
Underdetermined blind speech separation of sparseness
基于稀疏性的欠定语音盲分离方法研究
3.
Then,it is expatiated that owing to their sparseness,new kinds of matrices greatly simplify the projection operation during image reconstruct.
同时,进一步说明由于这两种矩阵构成元素的稀疏性可以简化图像重建过程中的投影计算,从而提高重建速度。
6) sparse eigenvalue
稀疏特征值
1.
Inter-area low frequency oscillation analysis based on Prony and sparse eigenvalue methods;
基于Prony和稀疏特征值算法的区间低频振荡分析
补充资料：稀疏
1.亦作"稀疎"。 2.不稠密。 3.犹言冷落﹐疏远。
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