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题目在
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0 ?, a9 Y" s+ G+ F2 D* `9 ^7 r; X! i这回不明白的地方多了。还请高手指点:* A( W9 V& x e7 x; |7 E. j8 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。$ h, k( L1 r; c4 l8 A9 a
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2 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.
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3. 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?, x) K: T# G! k
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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。3 {; K8 a, w1 S+ S2 i8 e: w. \
可是本质区别是什么哪?
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% S! p, ~. A% @' n6 B5.一样大。5 F5 s* E& J+ p, M# H- h- A3 B
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6.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。
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