查询词典 sparseness

And NMF has never been applied to resolve mixed chemical signal. It must be modified according to the characteristics of chemical signals, such as smoothness of spectra, unimodality of chromatograms, sparseness of mass spectra, etc..

作者根据化学波谱的基本特征（化学波谱的平滑性、色谱的单峰性以及质谱的稀疏性）对NMF算法进行了改进，缩小了其多解范围。

Herms succeeds over the years with a sparseness of composi tion.

Herms成功了的和复合稀疏年重刑。

Support vector machines are a very specific class of algorithms, characterized by the use of a maximal margin hyper-plane the theory of kernels, the absence of local minima, convex optimization the sparseness of the solution, Mercers theorem and the capacity control obtained by acting on the margin.

支持向量机是机器学习领域若干标准技术的集大成者，它集成了最大间隔超平面、Mercer核、凸二次规划、稀疏解和松弛变量等多项技术，在若干挑战性的应用中，获得了目前为止最好的性能。

Therefore, a tradeoff is between the sparseness and the energy efficiency of the topology.

因此，在拓扑的能源有效性和稀疏度之间存在了相互牵制的议题。

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。

Base-vector is also defined in this paper, which cancels meaningless computing with sparseness of problem.

PPBA还提出了基向量的概念，利用问题的稀疏性避免了无意义计算。

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。

With the development of E-commerce, the magnitudes of users and Web documents grow rapidly, and result in the extreme data sparseness of users.

随着电子商务规模的进一步扩大，用户数目和文档资源急剧增加，导致用户数据的极端稀疏性。

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 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。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。