Breiman的bagging算法，是bootstrap aggregating的缩写，是最早的Ensemble算法之一，它也是最直接容易实现，又有着另人惊讶的好效果的算法之一。-Breiman’s bagging, short for bootstrap aggregating, is one of the earliest ensemble based algorithms.

The piano (Italian pronunciation: [ˈ pjaː no] an abbreviation of pianoforte [pjanoˈ fɔ rte]) is a musical instrument played using a keyboard.[1] It is widely employed in classical, jazz, traditional and popular music for solo and ense