吴恩达-机器学习笔记(1)

无监督学习:一个程序被认为能从经验E中学习,解决任务T,达到性能度量值P,当且仅当,有了经验E,经过P的评判,程序在处理T时性能有所提升。 A computer program is said to learn from experience E with respect to some task T and some performance measure P , if its performa
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