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
- Wavelet-based Non-negative Matrix Factorization with Sparseness Constraints for Face Recognition
基于小波和非负稀疏矩阵分解的人脸识别方法 - 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。 - Sparseness of flow networks is revisited from the viewpoint of efficiency.
我们采用效率的观点，讨论了流网络的稀疏性问题。 - 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。 - Experimental results show that Matrix filling method can effectively relieve the data sparseness problem in recommendation system.
实验结果表明：该方法可以有效缓解推荐中数据稀疏性问题。 - NMFs can control sparseness explicitly and find parts-based representations for face images.
非负稀疏矩阵分解能显示地控制分解稀疏度和发现人脸图像的局部化表征； - 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 - 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。 - 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。 - 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。