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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
, k. H0 Y9 L3 v+ \0 y, [6 m: ?globals[* z- u% @( S, p
xmax" p. j' w# S% `5 _2 P/ q' D
ymax. C2 j( N5 t k
global-reputation-list
: G& Z/ o1 D6 _0 j( s8 p1 ]8 L+ ^! r! M, B% J* q' U
;;每一个turtle的全局声誉都存在此LIST中
@4 R3 ^5 \. S( f: |credibility-list! {3 b3 d3 w v8 N' I
;;每一个turtle的评价可信度
3 C1 }" F3 M* O' G& o) Z. _% H3 ehonest-service
4 ~& y+ ^! a8 aunhonest-service
k, i" m/ h, J4 D# Joscillation1 I2 Y0 V0 h( n% m& \5 p
rand-dynamic |2 O4 x" H9 x0 Q ?
]3 X# v* W. D, q& T
( S5 W0 U- E0 q5 {* b6 m/ V$ k1 k. Pturtles-own[/ V' Y. H+ J- B, i3 C
trade-record-all5 O) U1 _. P3 }- w# U3 a% c3 o
;;a list of lists,由trade-record-one组成
; i$ y) n( M& v5 m# J, Xtrade-record-one, K# h, C9 p0 k, \
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
& u) E4 y6 L* C! @5 r( w0 l; {
8 |, k$ [+ x7 };;[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]]
3 D+ j. f/ Z/ ltrade-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]
/ R+ w8 U* l% Rcredibility-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# X$ A8 P0 n' Z# I. Q* T$ x
neighbor-total7 y( L2 {2 _6 Z
;;记录该turtle的邻居节点的数目
: ^/ B) d+ E8 {& _: Z. e2 S) ttrade-time8 b( w# C+ w( l' `9 K. d# x" D! |
;;当前发生交易的turtle的交易时间
) @8 q! Z4 E% ?/ f- h5 n* Vappraise-give+ P) d+ L. ^6 Y: V& G
;;当前发生交易时给出的评价
: Q0 ^& u3 E9 D3 sappraise-receive
, j( x( M6 k t6 i% Z, d; `;;当前发生交易时收到的评价1 W1 b! C; g; S% X- }4 D" ]7 v) `
appraise-time+ W/ t# G% A2 w- b g, l
;;当前发生交易时的评价时间: F" e. ]+ I- M4 j% s
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
1 h, x, l* ?/ t" r- B9 u2 btrade-times-total
: |3 a: T, G6 L. i, H" k5 Z$ q;;与当前turtle的交易总次数5 J8 O/ z1 m0 e" f) ~/ i) s" j( e
trade-money-total
$ O0 g1 V, S4 S. ]( P6 ?;;与当前turtle的交易总金额" m3 u4 @) h3 V* M0 n$ T' c
local-reputation
' N7 ~% t) R: t6 I. rglobal-reputation
( ~. _7 L, ?/ gcredibility
1 ^7 ]9 r' D9 X1 P: ?" ^;;评价可信度,每次交易后都需要更新
. o3 A- b4 }: ^- O% h3 E kcredibility-all
3 J* B0 P$ h" U' @) ~;;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
8 l. \3 q6 J# b, M' k# A" V- `8 S1 O
;;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
* i( j1 ?. F0 H7 zcredibility-one
0 j8 a- `: Q+ [;;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
( c* Y& n& S/ c rglobal-proportion- x* M, A/ q0 i: k }
customer
& L9 M8 m3 u2 }4 s$ @ v) C$ _customer-no/ C" |, Y) t$ R. ]
trust-ok/ \5 D' G1 k# P. n7 h1 @; e5 s
trade-record-one-len;;trade-record-one的长度
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;;setup procedure4 j4 K2 z( m4 v3 x0 F
+ f- }* T6 x5 V, |. n: k
to setup
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ca
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initialize-settings
9 O# m0 ]9 n0 x, q2 z# f* v
& G3 A- [6 u# u- ~9 C" ~crt people [setup-turtles]* S& A" v% J* S1 l
9 [4 b9 h" t' r) I' X+ J" b' E
reset-timer0 }" h f5 E7 Z
& @# A2 n! o# O9 ^8 R* S: ?poll-class
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setup-plots
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do-plots" `9 t, i- Q+ M* I1 {* ^0 B
end
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to initialize-settings
2 k. t6 ^% c2 `# v5 a. f' {6 Y; |$ t) P- o- c0 t
set global-reputation-list []
$ g6 n8 W* i# }' W4 d
8 ]1 J9 b" E/ N8 x$ E$ o1 H2 aset credibility-list n-values people [0.5]! p- p% V" m F2 w5 t
; n5 e$ f: l, `& v( ~set honest-service 0
; b) X8 f/ R/ ` e% K! b
2 l7 Y) e' n9 R, T' Cset unhonest-service 0
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) H c5 @6 ?$ ]; ~; b, ]set oscillation 0& @7 Z8 [* Y5 L! M
& \( R) m5 F9 y$ \: `# t6 [set rand-dynamic 0
5 V# X8 k; n+ }" U" Cend
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to setup-turtles
3 X8 S. ]6 ~: d8 J- @set shape "person"' E8 D9 O7 P1 @4 T$ G2 L k
setxy random-xcor random-ycor' v# @1 ]3 n$ ]5 C8 b2 Y9 T# \, X1 l
set trade-record-one []) ^- D n% E! ?' @; Y; B6 J4 T
+ b: E7 g0 U- K$ Q- N: m* I% y6 j
set trade-record-all n-values people [(list (? + 1) 0 0)]
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' U3 p5 c" U' kset trade-record-current []8 `9 x" V; h1 J5 o- G. z! o
set credibility-receive []/ I: c V/ O4 {9 B- y& w4 f
set local-reputation 0.5
! s5 t7 m/ s% c3 p' r5 y5 jset neighbor-total 0, j" ~- ]) l* @( ^: G7 H
set trade-times-total 0
' ?) {: S7 E- Q/ V3 f# R' a& wset trade-money-total 01 H3 X' j% c: p6 q
set customer nobody
0 p G$ }1 i- I/ Q5 q; f) R8 jset credibility-all n-values people [creat-credibility]
8 t1 L; e# Y/ l% Nset credibility n-values people [-1]
% r; @& G; q5 o& eget-color
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' f, Q# k X2 L } f8 a4 Jend
8 W1 B" {- O( z! }* X% m/ L1 ~: k9 t3 h s
to-report creat-credibility9 G3 Z% V) J# g- @
report n-values people [0.5]4 v9 c0 _4 ?) r* O _+ G7 N/ O7 n
end) C' |. {2 g% V5 @* G: f* k
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to setup-plots
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set xmax 30% t/ Q) i9 K6 i+ ~5 x, f: l' A
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set ymax 1.09 I4 E/ t, I* d' F# R
& f' ?' A& M. p2 @2 W/ R! d9 m' ~clear-all-plots
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setup-plot1
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1 `8 I; N" p2 v+ Csetup-plot2
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setup-plot33 I+ u2 g P7 R$ G. f1 Z
end5 E; U6 r y q2 l$ j6 t
7 @3 o9 D3 L. E;;run time procedures/ A! O- ^- N8 a+ r% F$ n3 l0 `
6 \- d2 M; ?9 n( Fto go
3 R _# } k( K' l) f; N6 \& `: s4 j/ c R- y, z' `* [5 G4 e
ask turtles [do-business]! m8 K6 M1 t. A S) U! x' Y7 j- o
end
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to do-business 7 L- T& |* P6 Z( L: Z
) X' F' I9 V) h0 W% ]' {! ?8 \7 m) ^7 h
rt random 360( c1 _$ F) e! Z8 X
' f1 y, N' E% n$ w3 m" Mfd 1$ a& C& G9 j0 ~0 P- n4 Q' k
. {' x, D/ ]9 H! ^" W: Wifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself/ A+ K# ]; ^: ^' }, c7 u/ b6 H2 _3 _
l) z6 U6 I( y& J2 ]
set [trade-record-one] of self item (([who] of customer) - 1)
2 S' h* t7 I) f( C[trade-record-all]of self9 h2 v! e% Q8 q3 M! ^+ ?# E
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self5 b; ^' ?% L) Y; u* K; {
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set [trade-record-one] of customer item (([who] of self) - 1)
4 m# B8 j l' f {3 G2 l9 m# `[trade-record-all]of customer0 g5 ]2 @9 z& P, X- C
}! V( ~ `* y" X4 j+ [
set [trade-record-one-len] of self length [trade-record-one] of self) o y, x) ~( w9 v' W
% {# |1 ~ @. U
set trade-record-current( list (timer) (random money-upper-limit))
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' g0 T2 d1 f/ z; U3 @ _ask self [do-trust]' }6 y) a* w% `+ w: a, ]5 z! k, A2 F4 P
;;先求i对j的信任度
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if ([trust-ok] of self)% m' h. X6 ~' L$ G9 i/ D# S
;;根据i对j的信任度来决定是否与j进行交易[
! T0 `4 ?7 V+ ]1 r8 }- }4 cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself! T+ _; [( B, `1 Q$ L. E; m
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[$ ^$ _2 r o# b3 @
" S! ?5 \+ y9 K1 `& r, c2 Qdo-trade
7 C- n+ `! a: j- H) y- S7 ~ D* R B. r$ A4 M
update-credibility-ijl
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update-credibility-list& p. ]+ |. q/ T9 n
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1 Q W6 w/ o. @4 `$ C2 v$ ?/ L6 Z& xupdate-global-reputation-list% n2 ^, T, P7 b/ ^9 C* V
# Z4 B- m, z; c5 S' Ypoll-class
- i+ ]" Z* h3 j: D2 P8 R6 D5 E1 l* v' n& l) Q' f
get-color
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* y2 [$ n$ Y! V6 h' O]]% E8 U+ D% F) \8 s D, q# w& x8 \
, L; s3 p. }0 ?;;如果所得的信任度满足条件,则进行交易
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7 G+ z3 y2 _. w* B: J i0 z! `[& v% r3 j0 r0 j' I8 P( q# g1 _
3 u1 b; Q8 a, y' e) a
rt random 360" n3 Q% m- F) D' S* G9 |6 e7 q9 }
0 l& R+ z2 J) b% P6 Y5 yfd 1& W; s8 U8 W: |" j3 t- O
( a3 o6 ^) Y o" C]
% [- \: t1 I) _8 z2 ?: [6 p8 ]5 ^& ^6 c$ m
end
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to do-trust
- j8 O* A* m1 s. @8 q+ k, yset trust-ok False7 V6 s) C/ p; T% {1 }
5 ~7 I. U5 ~9 }8 ?3 S9 M
- s# V" z: _/ t9 t4 I: N7 f, jlet max-trade-times 0( L$ u' l. T' R- z8 V
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
+ y$ O" F# \' q8 e, Q* mlet max-trade-money 0
' X% w* W; T. `foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
' c- E4 O6 F0 G% }9 b% xlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
& ]* n5 W. X, h5 q
5 ^3 j, y2 A) g* D' O! {- i- q' R
1 W8 e* L+ i5 f+ J" m2 ^! T W9 yget-global-proportion
" X6 b" \ n" u9 Tlet trust-value
+ I- n9 T- B* a& e6 z6 Wlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list); [1 ]2 d+ j, w: v
if(trust-value > trade-trust-value)& q% Q1 p0 o: z7 K
[set trust-ok true]
3 \# F* B* [0 m. e# g0 gend3 X; l. e/ P. U/ w' d0 I
7 _3 l3 C4 a% o7 L' h, ~% z
to get-global-proportion- Y$ y/ Z1 E, {+ E0 o, l& s
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 Q9 K% V! g2 M3 _- c[set global-proportion 0], a& }) q9 W9 ~ F; w! A
[let i 0
" Q8 p$ G% @! Z, d* ?, t0 `let sum-money 0
U6 `/ H5 P9 i6 |* e4 Jwhile[ i < people]
9 T6 t4 _- d2 t( ?8 K/ H) o[
7 k" f) L9 Q+ z) O5 ]6 Rif( length (item i
% l( H4 b3 O+ i, \/ x# k( A[trade-record-all] of customer) > 3 )
3 B4 E( \7 E/ ^3 Q- H[
# F% w5 D0 ]7 J: n: n. | x- zset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
" \; V, ?- Y- Y0 d0 N; T]
8 c6 i d% q, z# \: B5 l. o]2 o2 s: }# |, s
let j 0$ w8 \7 g/ g$ }- W( j
let note 05 p6 f$ F( `0 ]% t: p8 d: ^+ ?
while[ j < people]
9 q9 R, \: w% o( N[, i* V: N( H2 M* y* m. b
if( length (item i+ ?* C2 @2 r) i% ? \
[trade-record-all] of customer) > 3 )
$ d7 O9 T! J: h8 v# M3 i2 I[. r( R5 U, W; l% w
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
7 N0 l" n& l% z5 s& r& N[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]+ O" R% O- @6 a3 @4 A: [& Z% y
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]- p5 _6 x2 T/ Z5 K4 M
]. F) d2 I7 E. L) k3 I
]( J" z% x/ L4 A: S) m& g3 W/ S
set global-proportion note
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end
! P# r- G: }* R! w% f# {
% t2 m1 Y8 J; ito do-trade$ G, t2 `, m9 T6 A# y
;;这个过程实际上是给双方作出评价的过程0 ~+ l; D' W# F) m- g: @2 N5 p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价* S1 N3 C& C- V! T" e9 t5 L: \
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价3 `2 ~8 j) J# R
set trade-record-current lput(timer) trade-record-current8 }8 X/ [& |. G
;;评价时间
8 f" y8 X* m( @, T* h+ p9 ^- n" a: Zask myself [0 S3 j" T% \0 {) [. m5 R7 s
update-local-reputation0 ~+ Q) S9 D' D" u
set trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself, W# R: Y+ k# k8 T
;;将此次交易的记录加入到trade-record-one中2 ~0 O# t. A# q6 V/ y1 y
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 l4 l) G1 [# z) L: N- U* z. j" Nlet note (item 2 trade-record-current )
9 L* s: @1 L) k6 N# L( ^6 p. }3 kset trade-record-current/ V$ n0 @7 j7 A& B$ P& |
(replace-item 2 trade-record-current (item 3 trade-record-current))5 N+ u* T2 w( `2 V# E+ Q) l! K
set trade-record-current+ ]- }$ E b T. ~' }8 j" t' e
(replace-item 3 trade-record-current note)
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" c* h" k7 u2 Qask customer [+ E# s$ J4 E0 ^
update-local-reputation+ F% ^/ e: z2 y5 J
set trade-record-current
7 E/ q8 Y5 X3 D3 b" u(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) c: I% B/ f+ H) R V# N- Q4 u
]
$ M% ]. r- d" _% q$ r }% d6 e& f
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer% f; i5 O) _! L8 q1 |
' ^4 z3 Y' m: Y# ^set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
' W3 i. c4 `9 n( S;;将此次交易的记录加入到customer的trade-record-all中
+ p% e" m8 V) }6 Z3 V. n7 B+ Iend' d, r8 ~5 }1 S$ `) Y' S
. f6 _/ x6 @. P0 j3 }4 r/ Q* X
to update-local-reputation
1 r+ _( w3 U/ m3 `set [trade-record-one-len] of myself length [trade-record-one] of myself
0 P3 N3 m3 g! ]( d1 W4 ^7 y
' y, j7 p1 c: g! @2 Q/ i& A, R+ x
;;if [trade-record-one-len] of myself > 3
$ n' x7 H( D! ?update-neighbor-total' ~2 j: d0 c& N+ P" G7 _) o
;;更新邻居节点的数目,在此进行+ E$ E5 w- w( Y4 c4 b
let i 3! ^) V$ m0 X% P. i
let sum-time 0- e! G8 I" v# V- o
while[i < [trade-record-one-len] of myself]
* H- b/ f& l1 ^5 I[/ D$ A+ p$ r" Z* H/ T) `! C
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
# g9 j8 M4 _% L! n; H/ Mset i
3 w6 |! G( n6 K- e, ?+ O* G( i + 1), x; t1 a; a3 B$ V' H
]: m% r1 K; V4 R: K( {
let j 32 N" D+ [' m2 {2 j4 K/ K
let sum-money 0$ M+ q; b- C. x8 w/ y' A8 R
while[j < [trade-record-one-len] of myself]
- ]4 R! H; z. `; {[
8 [ Z& M' Z5 t/ hset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
, u* @# l" T q, s9 cset j- d5 k. `1 P# Y4 \0 z
( j + 1)
) I0 J& k4 P: _' o9 Z0 m8 H9 `]1 `) a& H0 T# I3 f5 K
let k 36 E7 y( x" y- F& Q1 N8 d1 ^
let power 0
$ O$ Q' o$ ^# K" d) `let local 0# l; m( d% i# g+ x) U6 f
while [k <[trade-record-one-len] of myself]
, z- ^$ x$ A8 x" {2 J5 C[
( V" a5 E/ F. k) x# lset 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)
5 R( s/ X- j V" \9 k1 xset k (k + 1)
- D( [% ]# N& p]8 A0 K0 t8 S8 B
set [local-reputation] of myself (local)* c; _1 { p; T0 U
end* o3 M+ x0 r0 K& _6 t2 P1 k& [6 Z
) [3 F/ A6 Q, c1 cto update-neighbor-total a9 v. G4 m; F$ `
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
0 U! B5 U+ f* N: m
% o% ?) d v$ e& |5 S9 k$ V6 c0 u. ?2 P) x j Z' G
end/ w5 N' \# o. c5 j& F. n; d; B
) b; `3 N5 o. p: }3 o2 C9 S) |to update-credibility-ijl
+ O, n. V, J" {: ]4 R/ M2 t8 |$ K& n: b) n% K1 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。, t6 r2 k2 B6 C3 t
let l 00 D4 `7 W8 V7 v1 X
while[ l < people ]
5 P- |- K2 y& V7 }5 t% o( B4 {% [;;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' L4 v7 H8 f2 Y: x
[
8 e1 \1 D* R& C' V C- l( ~+ u! slet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
6 h- D' r4 Z T* P( l$ l5 P4 m3 `6 O. {if (trade-record-one-j-l-len > 3)( f* V/ }) `$ B. K. T4 J' u; W
[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
% h7 [ g3 I- P9 Flet i 3
" w1 d$ l0 v: M3 m# {5 D5 elet sum-time 0
8 B' \* I5 x( r& ^while[i < trade-record-one-len]
5 \2 r7 m# C& d; n8 E[
, M! ]1 C. h) u, }set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )# d# r, z% Y. T
set i
& J7 l* M) n2 U2 d8 X- w6 q5 [( i + 1)
8 {* Q% E5 s O! D+ V5 Z) Z! Y s( X]
1 v+ q5 P2 ]# J, {let credibility-i-j-l 0
1 P. I: E1 B" d3 Q8 y! N2 r! `;;i评价(j对jl的评价)
; d8 r# @# H3 W e0 `# `let j 3, W1 s$ H( q( a3 \$ c1 O* p
let k 4: O7 ^. Y; `% k0 H$ P) Y/ Z
while[j < trade-record-one-len]' g5 e! Q$ Q3 {0 l5 {0 z+ B% Z) _1 Z
[
% J# _5 z* A1 N( }' F& ~3 Swhile [((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
4 R. K: M& E1 Rset 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)
& _& v8 q0 \+ @! @6 U Vset j
6 p1 Q# X# C+ Y" ]7 M; Q( j + 1)
3 r0 I9 y# q4 Q4 C; }; Z]
/ k. R& u9 i$ H2 m: |& N, a7 dset [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 )) L8 e; Y( D) y0 s4 ~8 }1 L2 L& l
+ b/ q4 v3 T6 i7 W. L( O7 A
! ^( l; M8 t" u# @) p7 Z/ {4 ilet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))" Q* ^/ h6 r4 N: b
;;及时更新i对l的评价质量的评价) Z8 z' Y& M$ z: G
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]7 X2 o4 X. p8 E
set l (l + 1)6 L' W+ E1 R9 X' r
]$ ]/ g. w+ }; [+ W5 T4 |$ E3 T3 Q
end% t! {0 z; U; m9 h8 b
8 l* s8 }4 ?) gto update-credibility-list, V! w9 W4 H: w
let i 08 z' G$ W" S' I2 ~3 O
while[i < people]3 J) A, {# ^/ D( \, I7 \* g8 |
[
6 z" D+ ~. f, Wlet j 0! @0 C. e, T6 \8 z2 O
let note 0
3 b. A5 _+ b- clet k 06 }1 W9 U0 ?4 P" ?7 Z2 i" L6 M4 B
;;计作出过评价的邻居节点的数目
$ ~+ L9 c3 y/ p% w5 lwhile[j < people]' T% F# @, b0 @3 m2 ~! f V y. @
[
( `2 G0 S) n5 i; t$ X) X' L5 y' Hif (item j( [credibility] of turtle (i + 1)) != -1)4 i" q) F7 C+ h5 i
;;判断是否给本turtle的评价质量做出过评价的节点* Z) b3 c6 x/ B" E+ [5 O
[set note (note + item j ([credibility]of turtle (i + 1)))% E: J, j3 X) Z
;;*(exp (-(people - 2)))/(people - 2))]
+ k3 {9 D# T/ m; }- H8 ]set k (k + 1)
- [3 D: u: I+ ?& k L]7 s0 `8 R' }1 _4 u. J) Y' N/ U
set j (j + 1)2 h0 [& c7 S& h. b; f5 e' B. B$ @
]
2 D6 P7 g) \" m+ w Jset note (note *(exp (- (1 / k)))/ k)
3 G! N0 M6 E) @/ C7 {1 ?set credibility-list (replace-item i credibility-list note)* K9 P3 ~; I( b
set i (i + 1)+ I9 u6 O3 c8 J" K3 i9 k
]
7 w3 `% d8 O3 p, k; ~end
5 Q; ]: Q2 D: c& A0 u7 Q! V' v9 Q' ?% I* `
to update-global-reputation-list: f: J2 z3 b( S, J; x
let j 0
1 U, X7 q% d4 y- iwhile[j < people]
& m- D. u; _. h: m5 J[
: N' U0 J/ Z5 o! o6 H' z9 tlet new 07 M) {) f& Q+ N3 `
;;暂存新的一个全局声誉
3 m6 @2 D# ^6 W/ [" ~let i 0
& [8 n8 |1 l: s; e" Ilet sum-money 0" f$ F. e% H, d+ C7 p' e; s
let credibility-money 0, n/ p9 R# A6 d3 [# A! [
while [i < people]% Z; t- \0 j3 u
[
* V3 U3 K! s' R9 E- Tset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))1 s" v( d/ I. Z6 R; v7 A' V
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))0 y% X- {+ U$ t; V O
set i (i + 1)
6 x$ a4 k+ V6 c5 h]6 V5 F/ ~" M+ ^; ?
let k 0
2 V9 b; c+ s- M% ~0 ^6 ~% O, S* Klet new1 0
1 x6 }* y Q* l0 K5 V4 P8 [5 @* ^' Twhile [k < people]* t& q4 c$ ?# u! W1 j$ c
[
$ G# ^$ v: F' O! U! vset 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)1 g* {2 n- A1 N) C2 W
set k (k + 1)
$ {6 O: m, h9 b, M/ K+ K# m; y]
( _) i5 w" @) o' e7 }0 _: s2 g( Vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
' _ o, d# z3 N& b2 D' k/ tset global-reputation-list (replace-item j global-reputation-list new)8 P% v$ P2 C' b9 L# s
set j (j + 1)
& e/ g6 C, g: F$ H8 q]( X8 v; J* y; `9 V! _% b
end/ X0 e/ Q+ |3 k6 q4 X
' N6 t C: q; L, @0 k% T9 c! s. O1 [ O6 r, z
' `' {# V' k4 E% @; qto get-color% l b. a8 a W3 o% b1 \+ o
& n! D* {3 C* ?- v# w0 m8 q" xset color blue& B v4 r5 s, Q3 [) l- ~
end
# X( f Y2 h9 o
9 i6 U7 \ E9 j5 Lto poll-class
9 U# m* r y+ b% ?, I4 Pend* S4 g; _0 J# l) Y5 g$ I
, X& |0 h" z }2 F hto setup-plot1; o P& Y, h6 K: U4 |* h4 N" d" x
, E; u3 E' v1 ?! H& J/ C+ `$ E
set-current-plot "Trends-of-Local-reputation". a& M2 q; g3 i" N) R! B
& y3 T# l- d" J" eset-plot-x-range 0 xmax3 c; P& C! }3 k7 D9 e- u- G. w% v' H
# E+ G* \5 w( u( I. |) m; z3 v0 aset-plot-y-range 0.0 ymax. V3 v4 A: `/ f
end4 k$ w* W0 L& G" h" i- C2 Y
0 e# U4 ^* P0 @# Z( i2 @$ ^to setup-plot2
% {7 b7 C7 e0 _; _# u. ]6 h7 `3 a+ Q
set-current-plot "Trends-of-global-reputation"
( o! u- Z6 F) r5 P! l) _8 B) K/ V: d3 c: E* o
set-plot-x-range 0 xmax* w6 j% G! Y5 B0 j& ]; K
; o3 |1 u8 ^) t% [7 X* _8 f
set-plot-y-range 0.0 ymax; `2 D8 r( g* q$ l! \& j
end3 i# Q' ?5 F1 V0 r+ e
6 |9 C! G8 u( m; T6 H: ?to setup-plot3$ \. n5 }* R% v. |5 V
7 N5 I3 d/ c& P1 n4 P$ s
set-current-plot "Trends-of-credibility"
1 p* S4 \7 u1 j6 M, _" S# y' {, P3 D2 o$ v
set-plot-x-range 0 xmax U8 w3 r3 k8 F7 l: r
; I9 N/ Y1 X( |, R& ~/ K$ f+ Dset-plot-y-range 0.0 ymax
3 Q9 o% O8 K: p% yend' s' M7 ?! f- |$ G1 b9 d
0 T' M" M6 M8 C) }( N+ v
to do-plots' n# `: f6 x) @; K7 j
set-current-plot "Trends-of-Local-reputation"/ W% @' K, L) s
set-current-plot-pen "Honest service"6 m0 ~9 C+ y! g6 x1 Y
end
! o( K Q* G) ^0 Y- r
& a* E3 {) q1 n1 j9 g. _% }" F[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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