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
- 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。 - We proposed an object tracking algorithm based on sparsity feature and color feature.
提出结合稀疏性和颜色的方法实现目标追踪的算法。 - Thirdly, the application of these sparsity properties to SAR image feature-enhancement was investigated.
然后，分析了稀疏约束在SAR图像分辨率增强中的应用方法。 - 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）。 - 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 fast inverse iteration algorithm and sparsity technique are also exploided to reduce the computation time and memory requirement.
在算法上采用快速逆迭代原理并应用稀疏存贮技术有效地节约了机时和内存。 - 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。 - Effective hybrid collaborative filtering algorithm for alleviating data sparsity This property is read-only once the data source is bound.
一种有效缓解数据稀疏性的混合协同过滤算法如果数据源为结合型，则该属性是只读的。 - Sparsity of the target and the sampling rate on the reconstructed image quality also has been analyzed.
并对目标物体稀疏性和采样率对图像恢复质量的影响进行了分析。 - Using the sparsity of the scene, pixels above the threshold are mapped to a triple before entropy encoding for both grayscales and locations.
利用场景的稀疏性，将阈值以上的像素映射到三元组，对其灰度和位置信息分别熵编码；