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
- 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 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。 - 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。 - 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。 - 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。 - At the same time a new solution to the sparseness of training text is put forward.
同时对训练文本的稀疏问题提出了一种新的解决方案。 - The hierarchical clustering method is applied to deal with the problem that the solution of MLS-SVM is lack of sparseness.
运用谱系聚类方法解决多核最小二乘支持向量机的解缺乏稀疏性的问题。 - General clustering approaches, such as distance-based and statistics-based, are not adapted to classification of outliers because of their characteristic of fewness data and sparseness.
离群数据是数据中的小模式，因其固有的少数据与稀疏性等特征，使得基于距离或基于统计等常规聚类方式不适用于对离群数据的分类。 - 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