该方法保留了二元词串的较强类型分辨能力的特点,同时降低了特征的数据稀疏程度。
以冠状动脉造影结果为标准,比较4种方法判断前壁稀疏缺损的准确性。
结论G-MPI、室壁运动及室壁增厚率检测可提高前壁稀疏缺损的诊断准确性。
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。
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。
实验证明该算法不仅提高了查询速度,而且占用的存储空间也较少,进一步减少了数据的稀疏。
1·Although the sparseness of the data may suggest that the social network is not always applicable, a solution to utilize the network in these cases is presented.
数据的稀疏性意味着社会网络并不总是可用,在这种情况下提出一种解决方案,很好地利用了社会网络的有效信息。
2·Using pseudowords we can overcome data sparseness problem in supervised WSD and fully verify the experimental effect of word sense classifier.
使用伪词可以避免有指导的词义消歧方法中的数据稀疏问题,充分验证词义分类器的实验效果。
3·Compared with the classical Support Vector Machines, the Least Squares Support Vector Machines lose the sparseness, which would influence the efficiency of re-learning.
最小二乘支持向量机相比传统的支持向量机,丧失了解的稀疏性,影响了二次学习的效率。
4·Based on a rank-1 update, we propose sparse Bayesian Learning Algorithm (SBLA), which has low complexity and high sparseness, thus being very suitable for large-scale problems.
基于秩- 1更新,提出了稀疏贝叶斯学习算法(SBLA)。该算法具有较低的计算复杂度和较高的稀疏性,从而适合于求解大规模问题。
5·The data sets have features such as high-dimensional, sparseness and binary value in many clustering applications.
在许多聚类应用中,数据对象是具有高维、稀疏、二元的特征。