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题目在# S0 m8 @: ^( @( F2 b, O
http://www.aswetalk.org/bbs/blog-1753-7898.html& K: I8 f4 R$ c" N" _2 Z$ v7 Q8 E
8 K# ]4 R' }+ t) y; U: i' ]这回不明白的地方多了。还请高手指点:1 G" z# Q5 O7 P* }2 E
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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。$ j% p' C8 V/ @- Z
9 v. y$ D: V8 s. G2 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. * S0 c; O9 s0 y$ ?9 j
6 |- _: a# x j3. 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?9 t1 d, P" s+ i: c# N: K6 {4 E
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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。: \5 M1 V# e- [/ x6 e- M. d
可是本质区别是什么哪?
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3 n+ }) M; \; {# Q% P% g& M5.一样大。& q0 @3 i3 V% ~) y5 Q" m* {. O* j0 j
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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。6 \1 r4 t$ {* a/ O' P% k% O
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