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题目在- }! X$ K4 x V
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这回不明白的地方多了。还请高手指点:" t7 @0 k+ }7 I" B2 r0 Z
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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。- b4 |+ |+ P( r9 D
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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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$ u3 Z) C2 A) N2 d) y9 M9 W4.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 A! T( ?3 }/ G) w可是本质区别是什么哪?2 Q& g3 C* o% y2 U8 e1 B
6 j6 ~' V9 P+ @" W5.一样大。
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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。$ h% h( B* c3 F# U
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