sparseness
英
美
网络 稀少; 稀疏; 稀疏性; 稀疏度; 稀疏化
COCA.37869
英英释义
noun
双语例句
- This strategy can reduce the data sparseness and keep the search efficiency meanwhile.
这种优化策略可以在保证该算法数据查找效率不变的同时，进一步减少数据稀疏，提高空间利用率。 - This paper proposes a new method based on mixing matrix estimation for underdetermined blind speech separation, aiming at speech signals under weak sparseness.
针对语音信号的弱稀疏性，提出一种新的基于混合矩阵估计的欠定语音盲分离方法。 - The array antenna with low side lobe is designed by employing the Taylor synthesis and density taper sparseness with an overall consideration of the radiation and scattering performance. The side lobe of the array antenna is optimized by random search.
在综合考虑辐射和散射特性的基础上利用泰勒综合和密度锥削稀疏技术设计了低副瓣电平阵列天线，并采用随机遍历算法对阵列天线副瓣进行了优化。 - K-space data has sparseness after transformation, in order to achieve sparse data space, we can use wavelet transform to transform the K-space data, then use the sparse sampling imaging.
K空间数据具有变换稀疏性，可使用小波变换对K空间数据进行变换，得到具有稀疏性的数据空间，再进行稀疏采样成像。 - In this paper, an improved algorithm of image feature extracting for independent component analysis was proposed based on basic functions'maximization of sparseness.
利用基函数稀疏性的极大值特点，本文提出一种改进的基于独立分量分析的图像特征提取算法。 - Based on the clustering method, the mixing matrix was first estimated by a new potential function using the sparseness of sources.
首先，利用变换后信源的稀疏特征，采用一新的势函数通过聚类算法估计混叠矩阵。 - But traditional collaborative filtering algorithm has the shortcomings of sparseness, expansibility, and synonymy.
但传统的协同过滤算法存在着稀疏性、扩展性和同义性的问题。 - 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 - But it also has many problems, such as data sparseness problem, the system scalability problem and time factor problem.
但协同过滤推荐算法还不够成熟，仍然存在一些问题，如数据稀疏性问题、系统的可扩展性问题和时间因素问题等。 - The experiments on several pattern classification problems show that HS-LSSVM has high sparseness while holds good classification performance and its sparse process is fast.
对多个分类问题的测试表明，HS-LSSVM具有稀疏率高，分类性能强，且稀疏化速度较快等优点。