sparsity

英

美

网络  稀疏度; 稀少; 稀疏性; 稀疏问题; 稀疏

BNC.45121 / COCA.45310

英英释义

noun

• the property of being scanty or scattered
  Synonym:sparsenesssparenessthinness

双语例句

• Result: GEPRB can reduce the cumulating thickness of the basilar membrane and that of the vascular pattern, so as to tighten up the sparsity of the spiral ganglion cells.
  结果：豁痰祛瘀颗粒能降低糖尿病大鼠升高的血糖，减轻糖尿病大鼠早期耳蜗基底膜、血管纹增厚程度，使稀疏的螺旋神经节细胞变致密。
• Based on it, the incompletely sparsity problem is also put forward.
  并在此基础上，提出了非完全稀疏性的问题。
• Algorithms in semigroup algebra k [ A] can improve the efficiencies because they utilize the sparsity of polynomials.
  由于利用了多项式的稀疏性半群代数K[A]中算法提高了效率。
• The sparse Bayesian learning algorithm guarantees the sparsity of the weighting coefficient matrix.
  稀疏贝叶斯学习算法的应用，使得加权系数矩阵具有很好的稀疏性，保证了重建图像的质量。
• For a general banded matrix, discuss the sparsity pattern of the Q and R matrices from the QR decomposition of symmetric and non-symmetric tridiagonal matrices.
  对于一般的带状矩阵，详述对对称与非对称三对角化矩阵做QR分解后，Q矩阵与R矩阵的稀疏元素分布型态。
• The sparsity of SAR image data was discussed based on the backscattering properties of targets in the image.
  利用合成孔径雷达（SAR）图像中目标的后向散射特性和目标散射中心的理论，分析了SAR图像数据稀疏性的成因。
• However, with the increasing of system users and the number of goods, Collaborative filtering also faces severe challenges such as sparsity problem, accuracy problem and so on.
  但随着电子商务系统用户和商品数量的增加，协同过滤也面临着稀疏性、精确性等问题的考验。
• The sparsity and the problem of the curse of dimensionality of high-dimensional data, make the most of traditional clustering algorithms lose their action in high-dimensional space.
  高维数据的稀疏性和“维灾”问题使得多数传统聚类算法失去作用，因此研究高维数据集的聚类算法己成为当前的一个热点。
• Research of Data Sparsity Problem in Recommendation Systems Based on Collaborative Filtering
  基于协同过滤推荐系统的数据稀疏性问题研究
• Stylistically, the IBM/ mainframe roots of Rexx show in its case-insensitive commands; and to a lesser degree in the relative sparsity of punctuation it uses ( preferring keywords to symbols).
  在文体上，Rexx的IBM/mainframe根源体现在它对命令的大小写敏感；在某种次要程度上也体现在它使用标点符号相对较少（更多用关键字而不是符号）。