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题目在7 L! c. C _$ m1 S
http://www.aswetalk.org/bbs/blog-1753-7898.html
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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。, q& Y; O5 ]# m0 H" J/ U$ r
/ m0 N/ t2 Z( `; \3 m8 Q2 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。
2 d4 D+ h* p& ^可是本质区别是什么哪?
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% _# S7 r7 H( j" g/ ~5 c! F5.一样大。
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& b# z; m+ w3 S0 C; u6.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。8 V* M9 O5 {; y( U3 Z0 F; n
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