The results show that biases of different methods are very small in the dense data area and obvious in the sparse data area.
结果表明：在台站分布密集的区域不同空间内插方法之间差异较小，在台站分布稀疏的区域则差异较大；
We introduce and motivate the main theme of the course, setting the problem of learning from examples as the problem of approximating a multivariate function from sparse data.
我们引出本课程的主题，把从样例中学习的问题转化成从稀疏资料中逼近多变数函数的问题。
Through analyzing the characteristics of sparse data, we conclude that it's suitable for column-oriented database to store sparse data and give the method of how to design sparse database.
结合列存储数据库系统与稀疏数据自身的特点，本文提出了一种列存储数据库系统适宜存储稀疏数据的观点，并给出稀疏数据库的设计方式。
Based on trigram models, this paper proposes a three-step method of "word-similar word-part of speech" by incorporating the similar words and solves the problem of sparse data to a large extent.
本文利用三元模型，通过引入相似词，采取“词形-相似词-词性”三步回退的策略，比较好地缓解了数据稀疏问题。
Sparse data were available on pituitary, adrenal, and gonadal disorders.
有关垂体、肾上腺及性腺疾病的资料较少。
Sparse data were available on pituitary, adrenal, and gonadal disorders.
有关垂体、肾上腺及性腺疾病的资料较少。
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