标题: 请高手指教，这题是什么意思，怎么解?拜谢！！ [打印本页] 作者: 遗忘角落 时间: 2012-7-18 20:36 标题: 请高手指教，这题是什么意思，怎么解?拜谢！！ Suppose U is set of objects, E is a set of {0,1}-valued parameters 6 H/ L) D: S0 n3 d2 R, D& k+ F- Y, d/ P5 V' u. j9 e$ m
for describing objects in U. For any u in U, define an additive utility / A( p( s6 x* u$ X" U
$ S2 f6 H+ m, B% q# m& K8 u+ Gfunction f as follows: / v. M0 t0 {! o8 }) ]3 R6 S) K; F/ y( @+ {
f (u ) e （u ）, （对e属于E，e(u)求和） j& y2 k) H' p* W K ; \% c# J- g% q
e E * s9 M6 K6 e8 J6 v
1 o K% k3 t; n# W! Y, Y/ x5 y
where e(u ) 0,1. u is called an optimal solution if it is one of the & ?! q1 {0 n0 e% } }! j) ]- a
: a, v7 O9 T8 m8 K+ emaximum points of function f with respect to normal order. For , h2 ]7 s+ M& u+ Z
- H6 c5 R! H, d$ ^8 Ecertain reasons, some values are missing. It costs if we want to find ) F f2 U5 H/ {4 T' V - O# F" y7 y% ]3 a4 a8 d$ Q, zout what these values are. We assume that we know nothing about + b, u2 g4 Y- B2 |) L
( C0 @* L$ |) h' O$ E) H+ Vthe probability of these values being 0 or 1. So my questions are: ' Z+ y) E+ c/ a' Q 4 a# I; x! D4 b+ i/ i/ g(1.) Which unknown value should we figure out firstly if we want to $ X! e3 Y! @" A f. ^; l$ F- I3 ? o
# ?- p8 n8 C8 z
find at least one optimal solution? 作者: 遗忘角落 时间: 2012-7-18 20:38
大家帮帮忙啊！！急用啊！告诉我这题的出处也行啊！作者: ______释然° 时间: 2012-7-18 21:09
用有道翻译哈！作者: 遗忘角落 时间: 2012-7-18 21:17
不是，我翻译过了，没有思路！