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题目在- a0 }+ O( X, v" {" s& S3 B
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! b' E3 O5 ^* @' x% P这回不明白的地方多了。还请高手指点:
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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。- c! Z& @: g1 t2 y4 v4 M
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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?
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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。0 Z6 Z1 Z) U$ Y# a- i
可是本质区别是什么哪?+ [& w: T' _/ a. n& Z
: n# i7 }3 r5 m) T, z( C5.一样大。 l P; l" a2 D+ i
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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。( \9 z- W0 h6 N
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