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题目在
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* x( W; `+ T0 S7 S这回不明白的地方多了。还请高手指点:
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* s' r* ]9 c9 V! N% {7 F3 E' G4 r1.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。
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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. e+ B7 l% k \4 Z# \8 c2 z" |
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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? b2 k; e" j* B& b5 U" r1 n7 |1 d1 S
" @8 X% ^, ~: }+ Z4.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。
; Y0 P0 X5 a& v7 N5 g* r可是本质区别是什么哪?
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5.一样大。, K0 ]; f2 n% T4 A; _* ?1 Z
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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。& E, a* u2 d$ L) S, y
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