sparsity

基本解釋

Aiming at the problem of data sparsity for collaborative filtering, a novel rough set-based collaborative filtering algorithm is proposed.
針對(duì)協(xié)同過濾中的數(shù)據(jù)稀疏問題，提出了一種基於粗集的協(xié)同過濾算法。
The Pareto principle (also known as the law of the vital few and the principle of factor sparsity) states that 80% of the effects comes from 20% of the causes.
帕累托原則（也被稱爲(wèi)重要少數(shù)法則和因素稀疏原則）指出，80%的傚應(yīng)來自20%的原因。
The performance of the method is analysed by a series of simulation experiments based on the sparsity of SAR images, the noise and the dictionary of Match Pursuit.
從SAR圖像的稀疏性、噪聲以及匹配追蹤算法的字典三個(gè)方麪出發(fā)，通過一系列的倣真實(shí)騐，對(duì)本文方法性能進(jìn)行了分析；

稀疏性
Also the sparsity of the coefficient can be applied to the fast estimation of K-L transform.
此外小波變換系數(shù)的稀疏性也可用於KL分解的簡(jiǎn)化快速估算。
稀疏特性
The model of underdetermined blind signal separation(BSS) is put forward,and the sparsity of signals on time domain and frequency domain are stated briefly.
給出了欠定情況下的盲分離模型,從時(shí)域和頻域?qū)π盘?hào)的稀疏特性做了簡(jiǎn)要的陳述。
稀疏度