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
- 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。 - 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。 - This paper describes a method of extrapolating seismic traces based on the sparseness discrete τ-p transform.
这里研究的是一种基于稀疏离散τ-p变换的地震道缺失重建方法。 - A genetic algorithm with adaptive evaluation function is presented to deal with data sparseness problem in automatic semantic tagging.
针对数据稀疏问题，采用适应度函数较灵活的遗传算法做语义的自动标注； - 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。 - 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。 - 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 - Because the data it used was not users'rating but users'browse route, the problem of data sparseness and initial rating was resolved.
由于数据不是简单的用户评分，而是用户浏览网页的路径，这样就解决了数据稀疏问题和最初评价问题。 - 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。 - Summing up the history and the current development of the personalized recommendation system, and pointing out the two bottleneck problems of "cold start" and "data sparseness" existing in the collaborative filtering recommendation algorithm. 2.
本文主要做了以下研究工作：1.对个性化推荐系统的发展历史及现状进行了综述，指出了协同过滤推荐算法中存在的冷开始和数据稀疏性两大瓶颈问题。