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楼主 |
发表于 2008-3-18 13:10:54
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你好,这是我现在正在写着的程序,以上问题就在其中,请多指教
' q2 k/ l+ k( ?: }globals[1 S" a( ]; B9 m( I
xmax
& X' V% [+ L4 w' z- kymax
$ Z- I5 f5 U: qglobal-reputation-list
4 ~: q* i/ R' X- s% d$ N- A! s6 a: E+ D- F
;;每一个turtle的全局声誉都存在此LIST中4 b Q6 p1 k( U" P) B( g
credibility-list
0 f3 t5 S1 M7 j1 _9 m;;每一个turtle的评价可信度
) D; b/ U- H) O& k- ohonest-service: z" L3 ~3 ^' L: J: v- d
unhonest-service
4 u; ~: j( k, T9 }6 B3 _oscillation' u$ y% H/ \; q. G% q8 z+ l
rand-dynamic
& n! e& T8 p2 I W]% Q! s+ z% ?3 b, g- h* U0 A+ U
; ] j& j, ^0 e1 A8 |$ iturtles-own[
; j/ S0 P1 F' w! J% z3 ^! l3 r0 l+ Ptrade-record-all
% j! x6 g, h( T8 O6 k;;a list of lists,由trade-record-one组成- F& m- |/ J0 o( H' w; ~& f% O
trade-record-one
5 g% B$ s! E( w1 @" J7 y;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录" V# V6 f) `, \. T1 l4 b2 S
" a0 w! ~0 a$ i* c* m2 @" \( b9 J& M
;;[对方turtle的编号,交易总次数,交易总金额,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]]. g- u5 f1 L1 E; ]
trade-record-current;;list,trade-record-one中的这个list,作为暂存用,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]
5 |9 g/ H& p8 q# @' p$ Dcredibility-receive ;;list,他每个turtle还需要有一个存储其他turtle对其评价质量进行评价的list
/ o4 {( `$ P6 ]6 r- Vneighbor-total
9 L0 L" h- G" O5 |9 q" [0 ~( c8 W;;记录该turtle的邻居节点的数目" b* F3 B5 Y1 }0 e: S k6 k! ]
trade-time- m* k2 P) t8 z/ \
;;当前发生交易的turtle的交易时间
6 ]4 C4 E" h6 M& P# M' v/ Happraise-give
' [2 ]+ ]" n- R! R;;当前发生交易时给出的评价
% @3 @1 u1 X8 d* N$ \appraise-receive
3 p" p; U- V0 k8 ^8 }9 g- Z' x* @;;当前发生交易时收到的评价# Y1 Z( G) T4 \" A/ |
appraise-time0 P& }) c- P8 v0 m
;;当前发生交易时的评价时间" R% S! e0 o6 a4 Q/ L2 I" x- ~2 @
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
- i! C- G; B! j" p& Etrade-times-total" B5 M8 q$ X P( M9 t
;;与当前turtle的交易总次数8 a) I6 a/ ^ X2 |
trade-money-total' @! m" Q5 \$ E W5 I3 ^
;;与当前turtle的交易总金额
# I) |8 i- {* |local-reputation( j: B) s ~. [0 ?# |1 I
global-reputation6 A" H8 I6 r& O# w) S. Z
credibility: b$ y) J: S+ ]% F
;;评价可信度,每次交易后都需要更新% B7 |& Z- D1 |0 M$ i9 o
credibility-all6 Q R1 p6 ] X( m8 N6 N2 N1 x0 {
;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据
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;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.50 i' d+ X& P. o- _8 Z; |
credibility-one( u1 t5 D: V$ }1 L/ Q7 J+ U
;;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项
; u. n$ \3 _3 ?0 ]$ M, qglobal-proportion# f/ E2 w) q/ A, p# O5 Y
customer! J+ x* S" D; }- |) s$ o, B
customer-no
6 g* v7 P I4 O% Ltrust-ok
0 u0 I ?' _, r1 N7 O. v$ dtrade-record-one-len;;trade-record-one的长度
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;;setup procedure7 B2 s1 y* D; y& [& F4 b9 o
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to setup+ q3 ^ f' `1 _
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ca/ s5 x4 }3 }, z! O; C9 j& k Q
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initialize-settings% x, K# D l' L+ w' s! ~) |
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crt people [setup-turtles]1 y `* e/ v y; a
( \# X! R3 x; F4 j4 F# L$ xreset-timer( O3 t- _3 W, v$ V% W) ^ G
# r8 j' v, l6 @3 z I. t& xpoll-class7 `& b$ j' z+ w- n- G5 _7 F
8 }& V9 }4 P1 p ?: y
setup-plots0 P! V) a+ {$ \! M
1 `% ~" z R1 @3 Q* Sdo-plots `* k" \6 e" ~1 T3 W
end
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* E3 q/ Z: i ~6 r r. D1 mto initialize-settings1 m; Z. o* [7 U C2 P7 z: C5 l
6 U7 j( v4 d i1 r( \ C1 q7 Pset global-reputation-list []
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set credibility-list n-values people [0.5]
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, G- w# L4 e% b- J6 I4 w zset honest-service 0
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set unhonest-service 0- b Z* L; ]7 k L& F7 f
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set oscillation 0, w8 x( B# c+ j4 r- E
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set rand-dynamic 0" Z4 z1 d" }0 a, O# M
end
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to setup-turtles
; g8 r7 i/ C% q1 Z- t P3 Dset shape "person"
N6 I# _' `) d7 G, _8 Fsetxy random-xcor random-ycor8 f) k9 V" Z! G) w5 H
set trade-record-one []
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* ~4 E* b8 s8 y9 ], A& `5 Lset trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []- c6 v2 w' t3 F, J1 V' z% O% L" Q
set credibility-receive []) ]+ n# G$ e6 T
set local-reputation 0.5, F" f! w1 \9 {& v
set neighbor-total 0
, V$ x' d N+ l# t/ Qset trade-times-total 0
: Y, M3 ^& k& _$ R( xset trade-money-total 0$ T8 Y' Y2 \$ T+ ?1 W; S. ]5 W& B
set customer nobody/ k% J" d/ [# F8 f7 ^
set credibility-all n-values people [creat-credibility]1 d- x0 j, t' s% B9 s* K9 @6 Y
set credibility n-values people [-1]/ a1 U0 `, M) K
get-color3 h, R$ i, ~8 y B( B5 s+ J" [
) a: L, k4 ]" ~2 r- A( ?
end
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to-report creat-credibility }2 r5 o/ {# e1 e4 D6 v1 w" A
report n-values people [0.5]7 E \9 H. |7 S
end
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, U( ~. K$ G9 N5 Y6 mto setup-plots" Y, [ [! \) z
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set xmax 30
% C: `* v1 W8 n$ S
6 y& r7 Q$ s- rset ymax 1.0
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; D. k* K Z- w; H& Fclear-all-plots
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setup-plot1# O W! _0 G# v) M0 z/ w
9 k( ]( s+ ]; q; zsetup-plot2, W- ^; F/ T; h
( L7 d: `% Z6 N5 Wsetup-plot3, F3 Z/ Q& H9 g/ @5 ?" S* Q( k+ `
end
: z) J, Q# e& l8 Z: @. s) l4 l% Y' e' ?! z2 P/ M% Q
;;run time procedures
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to go1 Y: G; o# Z$ H3 j- C4 A
: m% Z# h) W4 Z* i' a9 Vask turtles [do-business]- ]4 d- ]$ K. P" b) s
end9 R9 @1 P1 k* {' X1 y1 J7 H1 a) p2 P
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to do-business
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/ a: H* [2 @% D. w4 i7 B& t& ^
rt random 360. X+ o5 W, W/ n L- H
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fd 1
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+ A6 C9 f! F$ j+ L! sifelse(other turtles-here != nobody)[
E* G, U8 A) R! f( ^
' m) j* S- b; p- q9 `+ m( O2 T* Y ?! eset customer one-of other turtles-here/ ^% V: A7 ^4 g$ k6 W% j
+ _+ T/ v ]: H7 x/ d- U;; set [customer] of customer myself
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) ?% d& T% Q- H& L" Eset [trade-record-one] of self item (([who] of customer) - 1)/ a. O3 j G% u( y
[trade-record-all]of self
, ]/ F; {1 x, s, Q( R' a- h! D6 p! @- _;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
1 n6 ?3 _% P2 u$ y H6 ?1 v[trade-record-all]of customer6 j ~! d7 l' x# o& W( G
4 U& S0 x3 N; [9 V& Sset [trade-record-one-len] of self length [trade-record-one] of self
- [9 h' v& o! e/ c
6 R6 {5 g% {9 Q7 Z, i, ~set trade-record-current( list (timer) (random money-upper-limit))2 C9 m8 w! W1 p0 l
4 `, y7 a3 E/ |* Dask self [do-trust]/ u$ N; o8 I# K7 _7 L; l; Y, U
;;先求i对j的信任度
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8 u3 |& s+ z2 H# yif ([trust-ok] of self)
, k3 S, a- D3 Y) [;;根据i对j的信任度来决定是否与j进行交易[
' j5 e- a {" Y, z+ {# @! gask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[5 z6 K: X- \% Y0 l
. }6 _* `" [! H! s
do-trade. K/ ` c( @/ a3 X+ l
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update-credibility-ijl9 ~8 [9 B' A' K+ l+ ?
( P" |: m6 @- G. U: l! g6 zupdate-credibility-list+ C$ ?; ^% G- v6 ?" y" Z- b5 c0 k K$ {! t
! I' ~ p! e0 e" I) B/ O
8 X+ r& i3 g% S* }update-global-reputation-list$ d* N t& O. |# h c. F+ k
0 e9 B: T# m3 D/ b7 R! ?' M: K2 M% q4 g9 dpoll-class: l/ m" E4 o: b% T" _
# U b7 V; e: j6 b5 R" kget-color" C- P7 [: Q6 k# u& E* J- q
5 ]0 i2 W% p; n, ], W
]]
' Y7 Z8 b; \2 h7 A5 {) D6 ]1 t! S2 o8 Z- F
;;如果所得的信任度满足条件,则进行交易4 S( T4 `& A% p
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rt random 360
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! y+ j0 a4 p& V) n& hfd 1. c+ `" ~6 |5 O+ u6 Z
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]
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5 M8 `4 n& r( K& xend/ U$ n; m' q& s U% m0 n9 k
& o: q0 `& _3 ]1 m/ f6 L- Gto do-trust
; q4 U4 s" V( l1 T8 K; [set trust-ok False
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let max-trade-times 0
; z, Z- D8 N" t. a9 |1 t% K: Hforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 A# S% l/ h6 \& c1 qlet max-trade-money 0% w* W- e1 V/ ?) y/ s: t( \7 E
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) ?( Z, O, R9 }& h: Y9 L
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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# n; t4 k9 X* K7 D/ l$ R' nget-global-proportion5 U# l% P$ O b+ c/ L# X
let trust-value
! i! r0 n, |, plocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
- @9 N- A# b9 N6 t7 Fif(trust-value > trade-trust-value)
4 t; Q5 e: B* R9 K[set trust-ok true]4 F; a+ L7 {) C R5 w) e5 c
end
7 o. b# l/ T, G) T
, C3 V" w) @$ O K; sto get-global-proportion. A. X+ |1 ^. x( {
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)0 J7 a9 x- i8 A, }5 d! |
[set global-proportion 0]
: t3 _1 k, @# e& K: i/ S! y( B5 M[let i 0
! e, c8 X, a8 L# l5 r5 olet sum-money 0
* @& G& i' j- twhile[ i < people]) C! C& }% G5 q, c g
[5 n- V, N. h3 ^
if( length (item i
2 [& c; g; |4 V$ H' \[trade-record-all] of customer) > 3 )
1 e4 k# V6 k& t' D! t' o8 j[
( i1 S b" Y8 `0 E7 c2 [0 cset sum-money (sum-money + item 2(item i [trade-record-all] of myself))$ L5 M P* c* C5 e/ e! k
]
R2 B T# Y9 `7 [2 e) Y]4 q) X0 D5 T- B! S/ n! `
let j 0' R9 a2 e S- U8 w# A7 S
let note 0; ]% z0 M7 g$ X0 f1 K' }2 U4 K8 r
while[ j < people]
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8 J; b, J/ ^1 A3 _/ W, E+ eif( length (item i
# W! F' |/ l% B0 y( @[trade-record-all] of customer) > 3 )
6 |. J0 f. ~' t* ]2 |[# l3 a, b7 z, ~4 C+ x, D5 f3 L u. @
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
9 ^- ?" L G7 T6 r, E' u+ k[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 W* t. P4 k, [& G) N
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
8 q- R% Q9 M% n]
: M) L+ ~ } {0 v], v5 T' z* P1 z+ |& K9 f9 g6 |
set global-proportion note M, k6 j9 T u
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end
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to do-trade
$ H$ s. M' s2 T: ^7 F) j;;这个过程实际上是给双方作出评价的过程. Q5 u7 A2 G; S# h4 {
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价' v" y/ e" y, g x/ X
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
/ n, `0 q4 [& W7 n& N( {0 d0 Jset trade-record-current lput(timer) trade-record-current! @! n7 H1 y/ x
;;评价时间0 Y! P4 t. ]* d7 Q$ }5 z
ask myself [
2 Q) O& N' n2 W, e: _: u8 j; rupdate-local-reputation( _4 C2 t- X. _% a6 J. n( m7 K! S. b
set trade-record-current lput([local-reputation] of myself) trade-record-current
7 i1 {9 b0 r, L- \' x7 u6 i]
7 f8 R3 b* @. b% C0 ~! Oset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
& K' ]. b* x4 p" g' p5 u* X;;将此次交易的记录加入到trade-record-one中; g" s* `1 I. K
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ o. g; p8 ^! p/ e, D( X
let note (item 2 trade-record-current ). {5 q. n8 |. T) k
set trade-record-current
* B: S. |$ a. {9 i$ @! G6 Z(replace-item 2 trade-record-current (item 3 trade-record-current))
, Q e$ C: X* ?" ^. H% Yset trade-record-current' x) |; J9 Z4 \0 E7 ]' u
(replace-item 3 trade-record-current note)1 D: i( s/ ^/ Y9 U' {% L
2 G; ]1 d4 W2 h6 i" a4 E- ]1 F4 H7 n, j5 b, i
ask customer [8 H. c% V# R5 P# Z; p* c
update-local-reputation6 D" m R* a- A
set trade-record-current! C1 g" k7 @; A5 j9 A9 l3 @' Q; {
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ) r" j j- a; \0 f
]
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7 l1 @! f/ R1 G# ^! N' y# Iset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer( S0 q5 |* V* G
# V# c7 y: m( ^. c
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): Y! I- Z* m& H2 c% k# C
;;将此次交易的记录加入到customer的trade-record-all中8 c$ X6 X4 v" n& s* a0 S9 D
end. B4 i, h4 A3 e7 V+ c7 P
u6 U2 K) i ]* \" z7 K
to update-local-reputation. U$ B- j X6 q6 ~0 K1 ^! f
set [trade-record-one-len] of myself length [trade-record-one] of myself
: V$ _$ B/ J+ A! ^
% U" \! @ r2 L3 M( O8 {1 I5 S4 P5 L; S, f1 T. n" Y# I
;;if [trade-record-one-len] of myself > 3 7 N, V0 t+ {# s) Y+ j% I" U; V
update-neighbor-total
Y+ W% Z0 b8 ~9 ?: y) n;;更新邻居节点的数目,在此进行1 D. i+ m& V0 w: `) a2 q# M
let i 3$ H7 @) P( ]9 d& p5 _
let sum-time 0+ d; X* x1 \4 w2 [; S& \
while[i < [trade-record-one-len] of myself]
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set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 J0 M( Z. m( d% U- f8 k9 O6 \1 L) w
set i% s: B8 V6 {' _; {% {
( i + 1)' c0 P; z1 U. [+ Z3 \8 d2 z- A
]5 ^3 T! W0 \! D
let j 3% n. ?3 ?1 }$ k3 E- k e- y* U0 S% T
let sum-money 0' L5 f* k# d! P+ [0 e! Y8 H
while[j < [trade-record-one-len] of myself] g; _4 S; a* z
[
, d4 w! P; j+ I$ tset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
. X7 D' O! V0 Q4 jset j5 N5 U: \5 @ @. m1 w
( j + 1)8 P1 t* r* T! ?3 i/ d4 V
]
: A" ~. q1 j8 e% E- _ M/ ^- X$ J, ylet k 3
6 \, A& u- S% ^& jlet power 0
6 J3 `% Y2 C( [9 qlet local 0
& Q9 W9 b; @* @7 S" zwhile [k <[trade-record-one-len] of myself]
F" ~' g& [3 r% c; u) r[
; w( e' q! C' n- V/ J& Q iset local (local + (item 0 (item k [trade-record-one] of myself)) * (item 1 (item k [trade-record-one] of myself)) * (item 2 (item k [trade-record-one] of myself)) / sum-time / sum-money)
v J, T' k a! Xset k (k + 1)
, k. U# k3 B* A2 [: c]
# _! o8 S$ d. z- \set [local-reputation] of myself (local)
* Q( f' H. m5 [end+ y% u$ U$ W' E5 ?2 S5 A0 e
' ]9 z& v [: E- `0 z$ }. vto update-neighbor-total) Y& V' T$ I; P5 a) V" `4 L
9 I! r* ]9 L( ~5 `
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]; L( W6 ?; ^7 h
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end
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to update-credibility-ijl
+ V/ c. y8 ]# i- Z& T1 d" Q+ r
;;思路:每一次,当一个turtle发和另一个turtle成功发生交易作出了评价之后,就去搜索本次交易对象的邻居节点,对这些邻居节点的评价质量作出评价。" S( H8 l; Z& _: N, N
let l 0
$ i' ]7 ?6 H: L) ]. i8 }while[ l < people ]3 z" P7 P, `# u. h& `. S. X
;;对j的邻居节点的trade-record进行扫描,以对j的邻居节点的评价质量进行评价
' x% O! ~1 K P2 J8 ][8 z4 G1 [2 Y+ n+ [/ T6 Z
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 i# z1 a( y$ P. p8 Tif (trade-record-one-j-l-len > 3)
% r5 J( A' c2 ~0 h[let trade-record-one-j-l item l ([trade-record-all] of customer);;暂存那个评价质量正在被评价的turtle j的与l的trade-record-one
2 m( x/ r. @% h! p2 nlet i 3
3 q0 T9 D5 [: {$ T* E( Ulet sum-time 0* G0 E9 ]% i6 }. J3 H% X8 |2 s
while[i < trade-record-one-len]0 `3 X% f5 A, {5 V+ j" M
[
% K3 R: `) X5 ^0 _set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
! L( f: d! A! }6 J. Zset i: t! C9 `: _3 `, {
( i + 1)7 I8 \1 U# S, ~, C: d! r
]
/ ?! o* G2 A' i# L4 j% B2 d0 zlet credibility-i-j-l 0
% Y6 \' }/ w$ k4 [% z7 a6 \;;i评价(j对jl的评价)
+ p c1 \, }% D3 Jlet j 3
7 }6 h! K1 X6 [8 N! c% P! alet k 4( ?9 l4 B7 p$ d
while[j < trade-record-one-len]5 z; A0 l; Z1 C/ _
[1 {1 ~$ h+ ?# J7 T) z- S
while [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在i第k次给l评价的这一时刻,l相对于j的局部声誉
9 C' m/ c. @6 @' A* E- d- r1 m7 Zset credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time)4 m, p n& x1 y6 s# w$ b
set j5 j' Z; c# b3 n. X5 F( {; l3 i
( j + 1)+ r) r8 {! ^ \8 M* ?) P
]3 g/ {* ]- S6 H' `# {& P3 p' D3 \; G4 T
set [credibility-all] of turtle l (replace-item ([who] of myself - 1)([credibility-all] of turtle l)(replace-item ([who] of customer - 1) (item ([who] of myself - 1) [credibility-all] of turtle l) credibility-i-j-l ))
8 p* L9 @5 _# V/ C0 o. _% a, `, Y4 ~& m( _2 T
: O% j# N0 U I. c
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ f/ g- O8 j0 Z# W;;及时更新i对l的评价质量的评价
$ ?9 x, f7 N' r q# vset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]) v0 ?6 A$ C3 M/ j
set l (l + 1) w' e" p' R4 [4 ] p
]
X% j8 L; T* O; O) Z3 b: `! Zend
0 T$ w& Z- C' k& J* U3 m
" G: |. C3 L- u8 N4 mto update-credibility-list, c* g& K, S2 U5 v4 @8 _
let i 0
) d0 d4 F% E' U9 x2 Kwhile[i < people]
% j1 c% E8 {" r' Y7 U( ~[. x& t/ h5 P- G" ~% ^& x4 [3 ^$ A; K
let j 0! U2 ~, H" C, Z' o
let note 05 G/ x8 {, P- L& ^
let k 0
$ x2 i" L$ Z" s5 L; a% C1 P8 ?;;计作出过评价的邻居节点的数目
; x; U' G8 ~4 l/ X) [/ Nwhile[j < people]3 p& {! C( y9 c6 Q# I
[, R1 W0 S) l; f+ G5 a
if (item j( [credibility] of turtle (i + 1)) != -1). }4 G8 I# v! `) r
;;判断是否给本turtle的评价质量做出过评价的节点
- r5 ~% a) o e5 Q' x[set note (note + item j ([credibility]of turtle (i + 1)))2 D/ k1 V5 m+ v5 f
;;*(exp (-(people - 2)))/(people - 2))]' N/ k7 ^$ C3 Q4 u7 \" C: j1 N
set k (k + 1)
9 C. A" W* K9 q2 l5 K5 p% [2 L]8 Y3 I7 y0 a ?7 X, Z
set j (j + 1)
5 k3 Q/ |# ]; p]
# B7 L+ ]) f3 zset note (note *(exp (- (1 / k)))/ k)
9 ^5 Z* }. c" o, S7 Vset credibility-list (replace-item i credibility-list note)
' w+ x. F: q8 U# Q& iset i (i + 1)
/ q5 Q) C- i3 o8 Z! c" H& T]
6 F" e, z7 w. W9 M$ Jend, `( ]7 w6 `4 P; B2 D* A, H
6 ^% ]. ]8 [* N# G# }2 s* Cto update-global-reputation-list9 w5 f$ u! f/ g" q/ [
let j 0' L l; n) ?3 z1 W, q
while[j < people]
" O: g& C2 B4 \9 S3 C; X7 U[9 C& e. O. [) N- Q5 \. K% ?" D
let new 07 B9 n# i5 |1 Q3 f
;;暂存新的一个全局声誉
" a0 q r* C- Alet i 08 u8 @- ^# j. A* \/ m5 H9 B
let sum-money 0) T4 ]) S1 j5 X
let credibility-money 0
# [4 ?6 N7 {( w! K- }0 ^while [i < people]9 a: U T P8 @) `& T+ y. w
[8 x+ j- h+ f: _7 r$ ], ?1 S
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
, ~- A" x% ]% q: U" R' mset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) y+ ]9 h5 B7 H5 ?9 V: }6 Qset i (i + 1)
. ~7 \0 N& |8 P: b]
' w) _7 D _7 Z! hlet k 0' v% y- Z1 f" W9 F+ u
let new1 09 l# x* Z1 I/ s" A* V& o' Z; Z4 l% E
while [k < people] F1 c& u: ~" }) g# h. r
[
2 m9 \/ K9 m5 k, z+ e" V: Oset new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money), v$ e1 H$ J5 x2 M
set k (k + 1): D: b1 j' X% j: }& r
]
0 b. G& [5 b2 \) yset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) O8 k* ]7 v/ i4 z! Xset global-reputation-list (replace-item j global-reputation-list new)
+ O' u* l: K$ |: _( {set j (j + 1)
1 Q3 k' ]0 E5 _1 j/ e1 ~]+ B0 c2 c- J. {1 E4 \4 c8 ^
end6 R0 I2 {. `* {( D m' N
' r J) L* @* H& q9 p
% Y4 I! Z& ^: f5 N5 x. i, J6 W7 c) k: W2 C
to get-color' P4 j6 a* o0 b$ V
8 k3 s8 J0 S% g% ^
set color blue
7 V$ I% X {2 ^end: M7 @' t9 D" x4 Z
1 `$ s2 g! @ i' D# ~
to poll-class1 j! M4 t6 f1 ~4 n
end9 P9 s( R( c! X
' V' m6 q* G$ b+ U3 rto setup-plot16 j9 @* F; W* F, V- T4 b& ~
! E+ m2 C3 B" P* {. R- \6 E' @set-current-plot "Trends-of-Local-reputation"2 h) y! c( u) @2 [" _& v9 G* s, b
/ Z( ~( ~5 C4 E! E2 f7 Dset-plot-x-range 0 xmax
: a1 y4 J1 C1 r: f. n; s: |! q
; @& p. M4 F8 |; @6 W0 |3 f/ eset-plot-y-range 0.0 ymax
) N1 `5 S/ B1 i. Q. A9 aend
3 r4 F! K4 X5 q; Q( F$ M4 c; e. H, d8 z% r2 b! \$ p z1 e
to setup-plot20 |4 Y- _; o2 \) }
; Q. n5 m0 u$ K) P9 M/ Hset-current-plot "Trends-of-global-reputation"# z W: a. E* O+ q/ R
1 B0 V1 ~. M x& F: u$ G; `set-plot-x-range 0 xmax
" R* b. Q+ j& n5 `# ^
1 @* e" V8 g4 U% K/ s; Tset-plot-y-range 0.0 ymax
: D0 T; T" r- J- W1 V3 Tend
7 ~ L4 P$ f" s3 d' I
4 M3 N2 z' c9 Q3 f) hto setup-plot37 W8 @ K# @8 w- |1 u! d- D I
" |% T9 I9 ]' }; L+ j# A* }set-current-plot "Trends-of-credibility"
6 o& ?0 d. `- i7 s) S0 K1 T! B# J1 r2 {/ G9 t
set-plot-x-range 0 xmax
5 ^3 M0 }7 U1 T6 e
5 ]. V& x: L; `% q- u. G; tset-plot-y-range 0.0 ymax
5 {& `' @7 e2 {% H4 b5 Eend a$ [# V5 c1 c; {( v* H
# w" T5 l+ e! ?" d0 ~1 s6 Xto do-plots
7 K% b5 n' q4 e) L* s( u, wset-current-plot "Trends-of-Local-reputation"
$ v7 I: n( K, X7 [set-current-plot-pen "Honest service"
; P- k2 A# Z# O+ i& ~% xend' F. Z- b$ t) z* E* v' ~, m
9 Y! \8 g* ]$ ^* ?, j* R! M: ^7 ?' H
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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