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题目在9 V' y! u7 F. P. o' Y
http://www.aswetalk.org/bbs/blog-1753-7898.html6 h0 O; ?4 F5 M+ a c
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这回不明白的地方多了。还请高手指点:/ A9 ^. e" q. U# G1 j- N
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1.不知道。 高低中音什么的一点都不知道。不过解题思路就是找可能的组合个数。0 E _2 s0 v* p
1 v7 e+ u/ M0 p* _- d2 well, I can reason a bit from the names of these optimization types. The advantage of randomized optimization is for looking for global minimum without being trapped by a local minimum (which is often the case for deterministic optimization). so far (a few years ago before I left school, to be accurate) optimization is cursed by dimensionality, and random optimization has only limited success. 7 X$ K+ M: [: E! R9 t
4 E( Q u/ Y- z+ s3. 没听说过傅里叶空间插值。如果有的话也不奇怪。那么像实空间插值类似,傅里叶空间插值能准确复原已知频率的结果。别的还有什么呢?8 N* [2 h$ A& t9 s
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4.不知道。我只知道复数比较奇妙。有个柯西定理,复函数如果一阶可导,则无穷阶可导。这在实函数是不可能的。1 Q3 ` U( c' A8 S
可是本质区别是什么哪?
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5 ~8 F, b* U4 r% @6 l2 M* k" r5.一样大。
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7 I1 n) [5 s2 k" m0 R6.蒙特卡洛的实质?我也不知道。它的误差是 O(1/sqrt(N)), N是sample个数。3 f* {; l ~* V9 ^; } J
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