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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
! V9 }* E8 T+ _- }globals[ z: W6 | K" `2 e
xmax( a+ Z. V# j' y) E4 x
ymax
" ?3 e, j- `5 | K( v4 nglobal-reputation-list
5 X/ ~) w0 S" {, V3 h0 b0 O/ [8 W- F o; [5 n; k. ~
;;每一个turtle的全局声誉都存在此LIST中
! ~# {4 E! n9 b" l- b, A3 zcredibility-list
$ c! m$ b2 D, U& n* b1 o/ X;;每一个turtle的评价可信度
: V8 k, M5 `: C! j6 zhonest-service
o! w* L7 X2 ~, Zunhonest-service. j' O9 x( D7 s
oscillation
) y4 ^- _3 u/ y z) M0 R( zrand-dynamic# [4 k8 ?& [# q2 @# j; p9 ~
]
3 d. _: a0 n& K- b$ q! A1 Q0 g w( J1 z& x: V9 C
turtles-own[
3 S% n/ g& }) J) ftrade-record-all
( s0 }5 Y+ V8 p6 m: ^1 X1 F5 [;;a list of lists,由trade-record-one组成; C! C8 m5 D& j% s! a
trade-record-one
+ O, j7 u' l- b4 x;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录9 v4 ~3 ^9 }6 g7 u
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;;[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]]" o$ a! s% E) b# P
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]1 F2 K2 x2 N7 ^, }
credibility-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list8 U1 J; D+ D5 [: R$ D4 N
neighbor-total" _) _- {0 e6 }3 s& R/ |5 @
;;记录该turtle的邻居节点的数目
) K' p+ p b* m' W [3 ~trade-time% R9 n" g5 F& u0 k- g' e
;;当前发生交易的turtle的交易时间
- A- k1 a8 N" iappraise-give* s& m# r; @4 B
;;当前发生交易时给出的评价
* j7 G, J& t- e' _7 Wappraise-receive
9 ^3 ~: x4 c0 ? Y7 |% e, b# f+ u;;当前发生交易时收到的评价7 B5 C8 P+ @1 }
appraise-time0 r' M% S) T/ c+ y- G$ a
;;当前发生交易时的评价时间
2 ^, G7 |: r/ S; M% h8 D. K0 D0 Slocal-reputation-now;;此次交易后相对于对方turtle的局部声誉3 q9 Z* C/ G# q- Q7 c
trade-times-total
/ r. H: h2 T" @# b;;与当前turtle的交易总次数3 u$ r- G" ?9 h" L0 o% H
trade-money-total6 a5 h# b5 K" X& ]: a7 d$ j
;;与当前turtle的交易总金额
) x" o% C b6 Clocal-reputation
* C& v7 r# w# Z& x; B8 `7 Fglobal-reputation
/ K* q- h9 M5 n& J' V5 |3 [credibility
6 p, K& c, l `2 @ ]9 C1 ?;;评价可信度,每次交易后都需要更新; {. I2 r7 H, [' `; N$ a2 _
credibility-all2 k! N! r% A# v- M
;;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. Y; r$ e5 L: O% v
( h& o' G5 D% t;;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0.5
! Z2 B7 T9 Z, K# Ncredibility-one7 [1 b: c! {( }3 w: u }) v
;;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
/ H: t( V( i8 `% Z1 n% a$ Tglobal-proportion
6 A* I* {, U3 ]customer
/ S% l, _. p6 z) L- ~5 g* x) s- rcustomer-no
. a" K& G( S A3 v3 Vtrust-ok
# S/ H2 f9 W- `+ M, y1 Itrade-record-one-len;;trade-record-one的长度1 N! }9 ^' Q F) B" v4 \
]5 }% Y" W& g* E, ?8 }/ O) H0 l4 ?
# d, ^* S- Q& b- B& `;;setup procedure. C) d4 V# \ s+ C6 R
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to setup; O( F6 Q$ T( s# J& A9 _/ E$ I
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ca; q7 ?4 i$ b0 e z/ V; {; |
7 |5 Y. z5 `5 t$ s: T& w+ uinitialize-settings2 |, E- h/ l1 n3 _1 l0 P
8 |' h+ S% C; kcrt people [setup-turtles]
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reset-timer0 H& C6 x& b0 l; H
) f/ B8 R9 {, i& Z' j1 `poll-class
7 |9 G' c% [$ T/ ]
! @% I2 g/ q i6 a& Zsetup-plots5 N ?4 x1 N* a3 g* ?
' e7 z& P: U1 }* C* A0 ?do-plots
2 Z2 S) ?. z. v3 o! Q+ wend$ n9 y) \! }8 o" |# ?3 I1 A
/ R# d8 Y" Q2 M5 @* C jto initialize-settings
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set global-reputation-list []
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set credibility-list n-values people [0.5]
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set honest-service 01 l5 E0 e* g; U) Z: u: H1 w
: C \# b3 N- X; R, F9 l. U' N8 y
set unhonest-service 0
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% X) Q0 V1 f' x8 dset oscillation 0
* {6 c9 w/ P/ `: w. t6 L
! }2 |* L) S Hset rand-dynamic 0
8 P, i# M- F, c6 Z8 mend+ r8 I" M- O9 y f% {: S+ J
2 w. v+ j- @$ H" U3 j- K, L$ a% b
to setup-turtles 3 B X7 K% \$ H4 \$ V* x; b, u
set shape "person"' C$ J' y7 L6 {, u1 r8 @) u: f
setxy random-xcor random-ycor
! _7 U+ A! A9 `5 Fset trade-record-one []
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. e4 v/ H. @7 }set trade-record-all n-values people [(list (? + 1) 0 0)] ! [: D5 B0 F: t) `' f' n. J
( c) `- j8 m- r) w; K' i: w u+ fset trade-record-current []5 m+ Z# \* s# f/ c" J* V& h7 a6 w
set credibility-receive []- Z7 b9 M2 l) v5 _
set local-reputation 0.5% }& H! [8 M6 u
set neighbor-total 0
- i$ U, _7 J" Q0 t# sset trade-times-total 03 e0 ?$ S- N/ `- w9 }( X" \; U
set trade-money-total 0
# B( e& e8 D2 R& z' X& [! Qset customer nobody* a, w7 `3 O0 J# ^
set credibility-all n-values people [creat-credibility]
$ g2 b5 [! R6 _/ a7 m# gset credibility n-values people [-1]. J8 r/ g3 _/ T- y6 m3 D9 c
get-color
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end
& A6 ?& X d! k+ u" N+ ` i
( j3 H5 P% L! L& C! c5 B6 p! zto-report creat-credibility
2 j: [. @9 c, creport n-values people [0.5]/ Z% }8 p/ G" M' l
end1 B6 N7 b# s% d/ J
y" p* g. M7 V7 ^to setup-plots
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set xmax 30
# \# J- ^' `2 ?* x) r& J) `3 M
8 @8 ] y: j* t. |" G2 S- y* c: Dset ymax 1.01 D2 }% e6 m/ z' L- [
0 o: G" P# Z( S4 x3 e" V. q2 Mclear-all-plots( A- `0 x1 `. w) Y" }( J! G C
, G& @5 y o' ^+ i' ?* b: w6 Csetup-plot1! c6 W- y# |9 |! X5 s) R2 N' e2 s
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setup-plot2
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/ h' |5 l# W) K+ O6 l! Zsetup-plot3
, P5 p" t0 {$ pend) H1 R8 g3 v4 H$ W
: |- `8 N+ |$ Z. B3 M0 {
;;run time procedures
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* Z* g# a9 L) h* }+ e5 \8 d2 n" wto go
o* a% `! V& _) D. d7 F S" X: v2 r
# _$ ^0 V ?6 E/ E% Gask turtles [do-business]6 p8 {' \" D# k( Q% o6 Q+ R
end
$ d' _8 K: G" @6 R! a& O! v0 ~. O. P( Z8 D) M1 i; P$ ^! P
to do-business
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m$ j% X2 V5 X/ }& g) J" ^: Z. [/ M0 w3 P% n4 ~3 r; z
rt random 360
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fd 1, s! s( D3 b" o1 d0 N3 l$ s6 |
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ifelse(other turtles-here != nobody)[! h) B5 w; U+ b2 R" Z3 f
6 w/ R1 W c+ D$ I. V3 Gset customer one-of other turtles-here/ J8 ]2 ?( X" V: H/ I8 E
* L% }- ?6 v7 h+ D a: m;; set [customer] of customer myself) O5 o# ^. w# X- |( ?
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set [trade-record-one] of self item (([who] of customer) - 1)- A* ?2 g2 c- T
[trade-record-all]of self
- L- W) e" ?/ g5 g }; P! ^' T! C& s;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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# W) D2 m5 L3 x3 r$ D. J; j7 ^set [trade-record-one] of customer item (([who] of self) - 1)
l- V* |' @3 m E0 K2 K; E6 y[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))( R( z+ T/ h( S s) W' ^
: p4 I- Y: p0 Bask self [do-trust]
4 w; ^& `4 x4 K2 s% b# _. s/ H8 p0 S. F;;先求i对j的信任度
+ F; ^# t% e4 w7 ^0 W! ]" X" J1 I- ]' v" q
if ([trust-ok] of self)/ O5 _. y) E! l+ @9 F9 w
;;根据i对j的信任度来决定是否与j进行交易[" Y5 v$ w( g) ^2 w" q6 C
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
7 y) N) V) f. [. a# h& h8 {
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' \2 c+ b. }$ T" A% s' |( r2 G
do-trade
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5 `: j' s1 {+ `update-credibility-ijl
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update-credibility-list
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w# S, V+ W( D, ?
$ }& i- u/ y8 d, R! i' Y {8 M& W/ k, zupdate-global-reputation-list
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+ x+ J6 |# W1 f, U3 cpoll-class, M- r5 L% |7 j% d
T, S9 S' N! Q; n" a( \
get-color
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]]
$ @& R; a2 f7 C( M* \' l# V4 x' a& v. a0 E# k8 l9 {* N6 h0 c
;;如果所得的信任度满足条件,则进行交易
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9 [3 }" z3 b2 y8 @[
?5 l6 r, E% h# u& ~/ W2 f. ^: j
9 E; ?- ^3 S, V* V8 Crt random 3603 {& p6 F5 l- Z0 [* k
# |# R$ G: z& z$ U- y$ Xfd 13 G) } O$ j0 b
8 h0 G4 \+ p5 z0 f8 b$ T' Q5 u
]
! p9 n8 ^" V# F: }
_& ]- L0 W2 ~, g z/ Uend! e S$ e6 m6 @" B9 g
7 W: _3 j" d9 [+ ]% j @7 Sto do-trust " I0 U$ Q3 A: {' Z1 g
set trust-ok False
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let max-trade-times 0
% j* m6 [/ R4 b0 H z+ q) k) b7 x* @foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
% c2 x$ a; D6 c! @/ y/ H* Z8 Ulet max-trade-money 0
8 c1 T0 c! Q2 Kforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]6 h* n+ {' w" G! d% i
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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, q$ N" t" [5 U) r# H$ R$ N+ j; W+ @* U) C
get-global-proportion' ]% g6 {* k+ U: B, \7 P
let trust-value1 u6 I2 y. Y# R7 a) R7 ]
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)& J9 j$ N/ y9 K' l0 k8 E
if(trust-value > trade-trust-value)
; R& r' x5 f) P5 x. ^/ A1 Q[set trust-ok true]/ P: q' f: P; F ~+ M9 |4 T
end
. M& x* D' ~9 N! U8 o" O
8 | Y% U) ]5 J# Ato get-global-proportion
/ h) e( t7 P4 z# q5 c4 h" d% }ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
E" t, U) v: n' D; E[set global-proportion 0]2 b5 T& d) X0 u% U
[let i 0
4 B5 ?: o, X$ F5 ~) \let sum-money 02 r1 W5 a8 o/ X9 L, Z
while[ i < people] D1 c: b& L% q# {
[
+ Z3 [2 n) P4 N% Aif( length (item i
# e+ ~% w2 f$ H% i! \[trade-record-all] of customer) > 3 )
# d3 ^$ i6 U' C2 h: k[
% j9 o& \6 G \7 d J% e' qset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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]5 ~- P5 T' W( @1 f2 }
let j 05 E/ J' M, C3 Q! x) ?7 _6 i+ A6 _
let note 0
# t' K7 O5 X8 ~6 [/ Vwhile[ j < people]- ~* G# h0 a1 Z0 z
[
; ^/ c+ j3 J$ c, U, Yif( length (item i; G7 ]! P# |. u& J, F
[trade-record-all] of customer) > 3 )
1 b% M$ O; ^: V0 D[
0 o+ D; y4 C/ f; W. Eifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)5 S$ R2 m% b. S0 R; y0 H# ^
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 u- ]$ k, x+ X. p- o
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]+ I! @) l: }3 H ], m
], S! T* A3 K3 J: J6 }, E9 M' E* J
]
% c! n5 ^9 B& Y2 l, r/ uset global-proportion note
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' J) {' E) r3 P1 V+ L- Tend
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to do-trade$ X) H6 A4 ]+ A
;;这个过程实际上是给双方作出评价的过程
% m' U4 f) \& a% H+ Yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
( I& b& V2 c5 [2 e c, H4 Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
1 N. n4 ^+ y) J, Zset trade-record-current lput(timer) trade-record-current
& }. r3 o5 I9 {% B;;评价时间4 j: H0 g% h: i6 O2 H+ T
ask myself [
9 p) |( W3 m5 O. ]update-local-reputation, p7 j7 m" x/ w4 @
set trade-record-current lput([local-reputation] of myself) trade-record-current
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' w2 H! N6 c+ o O% N3 i9 D$ Jset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself- i- W/ ~1 ]6 [
;;将此次交易的记录加入到trade-record-one中
# o7 D' \/ m; Hset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)% G% r9 i% x5 P1 _2 _ ]3 y* V
let note (item 2 trade-record-current )
7 G4 _0 u, h" f+ O8 Z4 qset trade-record-current6 U; W$ z/ Q# P! t6 G5 l1 F; W* X6 p, W0 k
(replace-item 2 trade-record-current (item 3 trade-record-current))
+ t/ ?; V4 z+ |/ O% F) Qset trade-record-current
9 y6 s; L4 S% y8 c! N(replace-item 3 trade-record-current note)
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" I! ^! v Z" `# |3 u7 G5 _- Y5 T% {
ask customer [
2 K& J9 b; }1 E1 {: U, q$ l, iupdate-local-reputation
4 {6 g& m) ^$ L- J& b# ^% v1 bset trade-record-current
+ N) S; i o( c(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
3 |/ W7 G, ~3 x- t8 i7 n+ Y$ C" k]$ e/ f- V z: P8 }# f2 F
9 H- E% U% O/ ]/ |2 W A
# ^( G8 h$ M( h9 @5 wset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: n% b7 Q- J+ k6 Y) ~3 ]
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
1 F" [6 E& j C; `7 V, ^;;将此次交易的记录加入到customer的trade-record-all中5 K+ p( `/ @1 P
end
: K+ m$ q" M9 E: G+ W
/ `( ^# h& N" Z* t7 ]1 x0 oto update-local-reputation
( \9 N9 p/ v6 f# D) ? t) \set [trade-record-one-len] of myself length [trade-record-one] of myself$ x7 |, J, L& V9 q: j9 I7 I4 R
8 B# W! e% Q8 C& `8 O4 ~0 c+ G+ `
# s) d1 c" ?% D r' s
;;if [trade-record-one-len] of myself > 3
9 \; u) R% d2 J3 d2 Nupdate-neighbor-total8 m! v, w3 m1 {3 X" t/ ^
;;更新邻居节点的数目,在此进行
1 Q, F7 q6 k" N: a a5 rlet i 3
' s$ W, I4 k" g- `) P$ Z+ glet sum-time 0$ T* {2 G8 i& Q4 l4 K; H: b
while[i < [trade-record-one-len] of myself]. S, o1 y" @# {) Q$ d( X
[
8 _) T0 ~# Q3 V/ \! X( Q: b9 ~set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
! h0 _- `7 b( G# U' S1 Aset i& i D1 x; V; W0 _& }+ f3 j
( i + 1). d" Z$ c2 K0 U
]
/ _: d4 Y( ~" U4 K x& b9 m U, ulet j 3
* j( A0 j7 Q0 k( C4 ulet sum-money 00 B8 b$ g# X" z3 x
while[j < [trade-record-one-len] of myself]/ x9 J3 e! P# g* |/ D z$ {
[
1 W" p: I! W* n/ uset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
q" u( d e/ `& `' T4 w" m+ |set j
( Q: W+ {. [% `2 G9 a _( j + 1)9 n& R) M6 v2 ?; L% ]
]
, O E) B+ `; O3 ^: slet k 3/ [, c) g9 P$ @* g
let power 0
( W+ b$ M- z+ J# n/ v( L1 Ilet local 0) m& @. c/ o5 |$ L5 {
while [k <[trade-record-one-len] of myself]
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u/ w4 D" O4 Qset 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)
$ C% d1 `9 j; U5 V" M- hset k (k + 1)
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set [local-reputation] of myself (local)2 ]) l+ | u0 \* l2 d
end' w, _. m2 i6 ?, q
0 K$ n: w+ n7 U7 {2 h) b# k. {to update-neighbor-total
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0 c3 l5 z* S1 G I! S+ @% gif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 D* P! ]' T0 a0 |* u% S
! i& Z& y3 F: e) J) Y, X3 @
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end
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to update-credibility-ijl
$ l9 K# C) Z, [$ m4 x7 Z4 f
8 _' n' a3 Q9 A! m;;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。
# b5 W% g9 a) }* ~9 j+ M2 W" i/ glet l 0$ O3 G0 F' V, P p/ t
while[ l < people ] s. b. N" U3 l! N
;;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
9 ~$ m% Y. n; H$ _4 w' [8 ?[
# y8 s0 }% N, a7 t* plet trade-record-one-j-l-len length item l ([trade-record-all] of customer); P: ^4 h0 Y' {7 L* C8 n+ P
if (trade-record-one-j-l-len > 3)
# L9 a3 `0 Q% p( F2 S[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-one6 o( x4 o9 }( d+ K' [
let i 3
5 e4 y4 N( w8 B3 W% q3 ~2 e* ulet sum-time 02 P; G3 X7 N! f/ J1 m* m
while[i < trade-record-one-len]8 n0 Q- a+ h% M, S5 f% I# |$ H5 g2 M
[5 [ [8 G6 E4 s3 x+ T, I$ z3 O5 ?
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )* [1 H# |3 o" W" k7 b0 ^; @
set i
' h5 ^, I' n+ W- _( i + 1), `/ z2 I/ l! P( _: N
]
/ [* _4 V: N; c; Clet credibility-i-j-l 0
5 _2 G0 {) C9 ?( O3 |9 f;;i评价(j对jl的评价); F& y! ` z8 X
let j 3
3 V4 J9 B5 P) K# nlet k 4
: |$ k" a4 M0 J8 B, jwhile[j < trade-record-one-len] R4 ^/ c6 R1 c- ^0 E6 I% J
[- B' C" \; y: |: `6 y8 ~, A
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
0 A" ~0 q- ~; Q9 Oset 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)
% {( ]2 O0 J) L( _- Gset j
( F \' d+ t* {2 h9 u( j + 1)
J3 T' f8 D0 F/ y8 Z]
! }+ L. w; c& _+ jset [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 ))
2 n1 H6 ^) S- t; Y5 Q+ C- `% c8 Q1 w! k4 k9 m
: F5 F Y8 k+ ]+ I% B- z2 tlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))3 `5 `! }7 O. ?4 b& N
;;及时更新i对l的评价质量的评价
; A7 J5 A% C* y5 Qset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
* }1 g5 T' r* `4 Y9 H5 b* Y2 Tset l (l + 1)% w" u3 m& f0 Z+ T
]
2 V, R- V5 O6 y+ N4 |end
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to update-credibility-list
# ^# u7 p) ]1 alet i 0: k* F, {2 G. l8 ~) C R& {) ]) [
while[i < people]
1 |0 C9 @9 n- G H' P4 }[
2 O1 H7 o& Q" N9 B& @, Slet j 0' i. U1 D) u0 l- y: B4 p
let note 0' }8 ~$ \2 D( @. |& W- X
let k 0
) g5 O# @5 M4 ^! k% D2 Y4 };;计作出过评价的邻居节点的数目
2 m7 l& A) m. d/ Gwhile[j < people]" w- D& z+ [4 g# S: G
[
8 ^: @! n6 v" Qif (item j( [credibility] of turtle (i + 1)) != -1)& y/ J6 s$ f7 R) V# k8 Q1 g% ?: |3 x/ G
;;判断是否给本turtle的评价质量做出过评价的节点3 |# X g3 m% k( ^5 Y! w6 z9 a
[set note (note + item j ([credibility]of turtle (i + 1)))
: S) U+ y, M6 c: W; c* d;;*(exp (-(people - 2)))/(people - 2))]; q: y6 ]4 _, U0 ^- c
set k (k + 1)5 \0 v- J6 I* ~) I" \
]
/ o' w, O/ o+ A- _; H. dset j (j + 1)5 X* f( V- a+ E. [+ p. N, S
]
, O+ _4 _; u& {! P4 \set note (note *(exp (- (1 / k)))/ k)
" q- n3 n* Q4 vset credibility-list (replace-item i credibility-list note)! ]8 n: I$ V# d4 E+ s/ U
set i (i + 1)
0 G/ F3 G1 v( t. D- Y], h) y& O5 ?6 I, [
end) {" I2 P- O8 [+ `& [ t0 k+ j
* V" ]) _# u6 X: @
to update-global-reputation-list2 @) S& T/ p8 c4 h# G
let j 0
h7 |: @7 Y' k ]: l" Cwhile[j < people]
8 K/ A9 O, Z2 B; t* M j[9 I% ?$ X& ]1 u! [! o# C2 P( V
let new 0
. w# ]5 L% d. h3 n( q+ i;;暂存新的一个全局声誉/ o+ g0 E# ?! u4 B
let i 00 M6 b4 n p, l( ~& i
let sum-money 0, C& H/ W1 L6 {: W8 B' m: J
let credibility-money 0$ P! a. a1 \" y
while [i < people]% a: u% W0 H4 X0 h% F- [% U1 o
[) l6 I5 c1 R K
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( j4 h; {) u; p, ^
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)). c5 Y) F: R( s6 ?
set i (i + 1)% ^- }' ^+ | p# ^6 Y
]) s9 V4 {. r) B3 ?5 N9 [
let k 0: C4 i# r6 E" @, J7 S1 Y
let new1 0
$ V' f& v3 Y7 [0 _; ^1 \4 x) j: f) dwhile [k < people]
3 x: I d1 x9 u+ S: Q7 A& ?[; I1 H3 n2 q0 Q, _2 K3 q; s k
set 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)3 A1 ^2 ^. Z, `3 M+ f5 w3 y) h
set k (k + 1)- r Q. A3 O* r
]
9 W3 [* c+ U% S' M7 O0 F$ J0 uset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ A% n* o& s. x3 k {! O+ z( Eset global-reputation-list (replace-item j global-reputation-list new)% F# |/ E$ ~1 B
set j (j + 1)6 w" p$ ]$ d' w. i/ g# h" u: a0 R9 {
]
( w3 j. B. f- X7 bend
5 n' A: F1 v: C; D! E; h' F3 ~! l( u! h. x( R8 i; {$ t
7 v. c$ A* \! r; y1 A3 R
- T8 V( _) i# m: d0 ^' Hto get-color
$ d0 K! | m1 C& w, F! a
8 I5 v9 F; O9 X; h9 a$ }6 e* V; eset color blue
7 h, C# l' G# Z- Z5 P& }0 i( ?end1 d2 [& o6 B8 ]; r. Y
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to poll-class
7 @' e$ y, N+ r$ c t8 {end( s! |1 |: e% @! U- D
6 }; }6 v+ @/ Y i9 P" D2 kto setup-plot1, b$ R0 d. d2 y
& ^. t6 {; a4 C) a' e: _
set-current-plot "Trends-of-Local-reputation"
8 @5 ]* n2 \+ |9 k/ j( P( v" @
$ F. N( p# @1 @3 l; J" |4 [5 R+ Iset-plot-x-range 0 xmax
0 c5 r. O7 ?7 L4 h% d$ R6 n+ p% K' v( Y& R2 W: d& v
set-plot-y-range 0.0 ymax. u2 w5 y! F7 n$ s
end
2 x4 X/ C- i1 {; K* h! I, X; n3 ~* s1 T1 p4 b
to setup-plot2
k8 I9 Z; A/ s* ^. w/ R0 E5 W# ^* I* g, x' \; C' M
set-current-plot "Trends-of-global-reputation"
' \- I2 `/ k4 S- W- k9 u+ `' V; p- b! C* x. r
set-plot-x-range 0 xmax) y. F; N4 O# ]1 F) U: B
) C4 m. R* n$ i {set-plot-y-range 0.0 ymax8 |, K' X3 O. i% S9 C
end
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to setup-plot3
4 V1 `( S# Z/ D0 b) o8 N) k J. t$ H" k& k5 i) M
set-current-plot "Trends-of-credibility"4 y* l3 Q* v6 G, }
. V5 V9 j9 N5 c. T( W& u
set-plot-x-range 0 xmax6 c2 {$ q. C1 A# ]
9 X9 n" C' {6 u
set-plot-y-range 0.0 ymax8 H& r. }) R" O
end
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to do-plots
7 y4 S' d" A9 P$ @set-current-plot "Trends-of-Local-reputation"# D; A, ?! U2 E$ k
set-current-plot-pen "Honest service"
( E5 A; Y5 I/ Y8 A' S9 Tend, h5 J3 [ ]2 `: w
# `4 C) Y: z7 y7 X( t( ~
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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