frankthu - 博客园

摘要：由 Tom Mitchell 提出，来自卡内基梅隆大学， Tom 定义的机器学习是，一个好的学习问题定义如下，他说，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 后，经过 P 评判，程序在处理 T 时的性能有所提升。我认为经验e 就是程序上万次的自我阅读全文

posted @ 2017-06-30 21:12 frankthu 阅读(210) 评论(0) 推荐(0)

离散数学-01

摘要： Tn=Tn-1+1+Tn-1 阅读全文

posted @ 2017-06-30 19:26 frankthu 阅读(171) 评论(0) 推荐(0)

新概念4-21

摘要： William S. hart was, perhaps, the greatest of all Western stars, fro unlike Gary Cooper and John Wayne he appeared in nothing but Westerns. From 1914 阅读全文

posted @ 2017-06-30 08:13 frankthu 阅读(184) 评论(0) 推荐(0)

新概念4-20

摘要： How it came about that snakes manufactured poison is a mystery. Over the periods their saliva, a mild, digestive juice like our own, was converted int 阅读全文

posted @ 2017-06-29 09:59 frankthu 阅读(183) 评论(0) 推荐(0)

新概念4-19

摘要： It is fairly clear that sleeping period must have some function, and because there is so much of it the function would seem to e important. Speculatio 阅读全文

posted @ 2017-06-21 10:35 frankthu 阅读(144) 评论(0) 推荐(0)

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