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
双语例句
- 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。 - Associated with access to services, employment, and leisure, they are functions of population sparsity, demography, opportunity, and geography.
与在城市获得服务，就业，休闲相比，他们则显示出人口稀疏，机遇和地理的劣势。 - Data set size, dimensionality and sparsity have been identified as aspects that make cluster more difficult.
数据集合的大小，数据的维数和数据的稀疏性都是制约聚类的不同方面。 - 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。 - 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。 - It is hard to cluster high-dimensional data using traditional clustering algorithm because of the sparsity of data.
在高维空间中，由于数据的稀疏性，传统的聚类方法难以有效地聚类高维数据。 - It discusses the exploitation of sparsity in large LP problems as used in practice.
对高阶线性规划问题实际应用的稀疏技术的开发作了探讨。 - This improved program has solved the scalability, sparsity, cold start problems in a certain extent.
改进方案在一定程度上解决了CF推荐算法遇到的矩阵稀疏性问题、冷启动问题和可扩展性差问题。 - 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 - The application of sparsity technology evidently makes the matrix calculation of power system more efficient.
稀疏技术在电力系统中的应用显著提高了电力系统矩阵运算的效率。