The xor thing is a good sneaky approach , but it still might not be enough 即使发生器产生的数据还不够时,发生器的数据可以预先存储,或者可以使用多个发生器。
( 2 ) this paper presents some basic theory about wavelet analysis , and proposes a fast wavelet ( packet ) algorithm based on sliding window . by storing the part of wavelet packet coefficients in memory in advance , we avoid repeating calculation and gain a fast wavelet algorithm at the cost of increasing some storage space ( 2 )本文介绍了小波分析的一些基本理论,提出了一种基于滑动时窗的小波(包)快速算法,通过预先存储一部分小波(包)系数,避免重复计算过程,可以用较小的存储空间为代价,获得了计算效率很高的小波(包)变换快速算法。
预先: in advance; beforehand存储: memorizing; storage; memory; ...预先存取: preliminary access预先存在的微裂缝: pre-existing microcrack优先存储器存取: priority memory access先存在: pre exist预先穿线的存储单元: prewired storage unit预先: in advance; beforehand 预先打好行李 be beforehand with one's packing; 预先感谢 thank sb. in anticipation; 预先警告 forewarn; 预先声明 state explicitly beforehand; 预先通知 notify in advance; 她总是预先付房租。 she is always beforehand with the rent. 一切都已预先安排妥当。 everything has been fixed in advance灵魂先存说: theory of pre-existence先存影像,幻影: preceding image优先存款: preferred credit优先存取: priority memory access进入超市请先存包: please deposit your bags先存抗原多样性: pre-existing antigenic diversity事前;预先: be beforehand事先,预先: in advance提前,预先: in advance预先, 事先: by anticipation预先,事先: in advance; inadvance预先的: advance; anticipated; preliminary; previous; prior预先交: be paid in advance预先写: preliminary writing存储: [计算机] memorizing; storage; memory; store需求优先存取区域网路: demand priority access lan预先形成;预先成型: preformation