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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
7 x/ N* c, V" Nglobals[
n+ ~8 Y0 F( U# }. cxmax
) f% W! A7 g7 u: eymax
4 A- Z, N: [! j9 z* b) Mglobal-reputation-list/ l$ u( f1 u$ ?- @5 |# U9 s
( H7 E" D- f, S$ J, K, l* ~. H3 |
;;每一个turtle的全局声誉都存在此LIST中0 \* s) z& n; w3 C8 K' I. v
credibility-list/ f+ d' R/ ]8 h$ K/ \
;;每一个turtle的评价可信度
$ j6 E* m+ g, n% y K0 lhonest-service
- H# }) m1 ]% E8 c1 C1 x4 punhonest-service* o2 S% P! l2 U/ l& s2 H; r: |
oscillation5 U/ G1 y" i' }5 {5 o' S6 Z" W
rand-dynamic
1 I- v" K8 e. ?]) j4 \' z3 [8 Q: q' Q9 K* G
9 |9 ^3 |+ Y) xturtles-own[' Q7 w& Q0 r; j6 p' @" F6 a0 C
trade-record-all
g7 a$ d9 q7 z# `) s) {+ A, i: a;;a list of lists,由trade-record-one组成: k. u* y3 l3 M- x: L* I% k
trade-record-one p6 \, h* ~# L, p, o
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录7 D: X& O' T) s# X- ?
1 ?0 j/ L. u, o' W$ s( \( `4 N6 S;;[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]]- d4 D; q* r0 \5 D" ?
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]
% M" H% v3 [* \$ Ecredibility-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
7 N2 E6 F) L" \1 e1 t) lneighbor-total
! [' X7 a- e# ~: K;;记录该turtle的邻居节点的数目
V, y" j6 W# c5 s w" w: Ctrade-time
, W. M! Q6 b& j" G;;当前发生交易的turtle的交易时间# K* w7 T5 E% q2 Y& c6 L
appraise-give
$ i# K" H# \/ T3 n;;当前发生交易时给出的评价
/ t$ Z* G$ V# tappraise-receive [! Y# P: O+ M2 f; A9 Y# ?0 A
;;当前发生交易时收到的评价
9 W6 _/ h. X* t+ q) eappraise-time
# Z: H7 F# p+ l& b z;;当前发生交易时的评价时间- I2 r5 |, J' X8 f! ~$ h$ d. n8 S3 V
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
. b' v, g- H( j6 K# N# d9 C8 ktrade-times-total
. C1 h' a" @; _3 D3 E. @;;与当前turtle的交易总次数
8 w4 l; N& D4 ?$ I& Etrade-money-total2 g" t/ p: @- Y7 i; E2 x: O# [
;;与当前turtle的交易总金额0 V7 w$ z; l+ U5 o' ^
local-reputation; v# b, l$ j$ b9 H9 e8 K1 e
global-reputation; s* l6 |8 q4 @( O5 l& U
credibility
( ~; w9 F: @) o" q2 d) N: V& W d;;评价可信度,每次交易后都需要更新
9 e* S9 S3 s9 ~credibility-all# [2 M7 q) q7 ]
;;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
0 e# x E: @2 Z
* _9 p6 |) I- B$ M7 w$ 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- [" r) i# U. x N
credibility-one( B& U; T# d! q! y) K
;;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- l$ z4 }+ Q- K/ c- \( {9 L
global-proportion
5 o1 r* R# k6 s6 f1 f/ [. c" s! Tcustomer. n" ?7 Y- K; {5 v0 e/ z9 F
customer-no. L/ u* e5 H) V& e5 |' \9 Y" r, x, E
trust-ok. r# O& W; F* Y3 H: v
trade-record-one-len;;trade-record-one的长度
6 q( s; G7 ~/ x, M+ d/ D1 A]
- y8 t% N) o) g. s
z1 Y5 c3 z8 w! ]* k! \5 n& e% i;;setup procedure0 S0 Q; T. h- d& H; I; `% {. p
8 o( h8 }/ C% a/ t8 [ M# ?7 s9 F
to setup
: R, h" F/ Z2 M7 l/ X+ R2 x. a
, V F2 p; l% g3 p- dca
4 M3 d# D+ w/ A$ I; J3 b
# u- m( x2 _; \2 Iinitialize-settings. E% p) y1 V5 o0 h/ e- h
1 Q/ V& ~$ @# G% [crt people [setup-turtles]
/ `9 c/ Q: t7 j0 e1 @
. }3 |/ ~9 ?1 S! B4 |6 S8 Lreset-timer
& ]$ b4 N0 b1 B& ] {0 y' p# X8 g: O/ u, i
poll-class- V4 M( Q9 g7 B: P' Y5 F
. X' c( F' \( R1 ]0 ~
setup-plots
, w& F" ?: H6 x( @* S
- \, `" c' z0 a# Q! i! |; w2 hdo-plots4 s' i2 y% X' g
end7 {9 P% L& l3 \- ^: {$ h
+ J& g7 X. x8 Q! Y
to initialize-settings& j" k- H) g9 v# D! B
2 R( j+ a4 y! m5 I3 aset global-reputation-list []
9 {, w" r5 I% S( w( m' o4 h' J. @5 @0 V# ~# n C6 w) b* G
set credibility-list n-values people [0.5] J) N+ u: O, v6 W% A! e: \
% m1 Y' s% P8 S( }& Oset honest-service 0
8 g0 G6 Y! N! o- R8 K/ i( d
0 \# l. I, G0 u7 K- i- N6 yset unhonest-service 0$ `* {+ r; ~( |8 b
/ X* U; j: V; }set oscillation 0& g9 q* m9 }. L; j- Q, V0 O6 u
% K+ ~2 A) P# @5 V
set rand-dynamic 09 \/ ~( S( j( e2 M8 t/ s
end
7 g: m. E6 x4 o* m* {% O) K
n% a# G/ C. h! Ito setup-turtles
1 J. i* j L4 J5 b* m$ U: s$ fset shape "person"
9 t- i. \9 Y! \1 Psetxy random-xcor random-ycor' X$ |* X t4 F8 }' n: {( B
set trade-record-one []8 m3 D/ z1 B7 T# M
. y0 f! O( { ?+ q: I9 Fset trade-record-all n-values people [(list (? + 1) 0 0)] ) b; U1 N5 ~7 P* b7 f
6 L' q% i1 n9 xset trade-record-current []
V! o% r! z' L2 L6 G+ Uset credibility-receive []
, `4 U2 w: O1 m3 ?4 j, U9 w; lset local-reputation 0.50 Q# h0 e2 P" t' l
set neighbor-total 0
( R7 t% ]* ^4 Yset trade-times-total 09 C0 Y9 F+ I! {1 D
set trade-money-total 0) j+ Y) ^: z, m: I+ D/ M
set customer nobody: O8 r( u9 M" D( K
set credibility-all n-values people [creat-credibility]" W$ N* e8 \9 d' V
set credibility n-values people [-1]5 w: K6 M5 g. L( {
get-color
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. g) q: b$ @; \8 z+ r. Kend
8 ]6 [! U6 j" {( B' V7 s, B: b, O- E( j9 a4 }9 N
to-report creat-credibility
c; F1 r4 ]" S2 ^# H" o% Y! J3 creport n-values people [0.5]5 b$ X. I! v. g# g- |- z. k
end6 h9 G) B* m' _% {$ B& o) _, a
8 _6 ^: ]8 R+ a" }& G
to setup-plots
/ s0 _4 X5 L2 |7 W" i
' @; \' ~# F( n' ?: \; mset xmax 30! H8 @4 U) c( ]( X
8 x' \! E. [' k$ [set ymax 1.0
5 o; P5 |" o$ i( Z6 C
& V) Y ~" R; R; ~. dclear-all-plots- |' e( `- [# y6 E5 ]1 k4 ]! Y S
) a8 H) U+ s C- f. f* u l# t# rsetup-plot14 O. v( S- O3 h" `
5 q. ^2 D- f+ q
setup-plot2
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setup-plot3
3 I, b3 Y u' X! Q; Q4 }9 W; vend
/ s1 x. ^$ i, X, |, `" p
5 \. `7 ~8 ]( i" ~/ B+ r6 h;;run time procedures V3 B* U5 N& ^0 I- I6 p9 o! V
p/ r! N, n/ ~& ~
to go- o8 p$ h/ B0 l# _
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ask turtles [do-business]
- v, @4 h7 B! \# J& F3 v. m6 lend
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! c5 a0 u" @& b# e# \to do-business
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' j6 g7 m O# ?rt random 360
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fd 12 b# b0 b" ?. x; k3 {3 K
+ S: g+ I) f; _+ m) ~
ifelse(other turtles-here != nobody)[
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, y& ]& d0 G7 O- [8 ~: ~, c+ X4 Bset customer one-of other turtles-here6 ]( Z1 g2 t( @' f0 O6 i; |. J0 J
# F. |7 l& ^4 w# x;; set [customer] of customer myself$ t6 a1 l* F# q) _5 d* F
/ Q* d$ J- u8 z0 j, r k6 Vset [trade-record-one] of self item (([who] of customer) - 1)# F1 X3 K- z: Q6 j5 N1 \
[trade-record-all]of self
3 P7 n- q8 K! ~% ];;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
+ c! z0 _0 w) e7 z0 F! w! p5 h6 k1 p% q; x! P
set [trade-record-one] of customer item (([who] of self) - 1)
% D) z: M; X& B8 k8 ?+ A; O6 e[trade-record-all]of customer D' n2 K. F" l! U1 d. y2 }, _* c
1 }- |1 g! T4 |
set [trade-record-one-len] of self length [trade-record-one] of self% g: a' e$ ?- l2 o! a
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set trade-record-current( list (timer) (random money-upper-limit)); t4 O0 W6 [7 J
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ask self [do-trust]/ n) K' i- o |9 L h3 ^
;;先求i对j的信任度: \; g; i) Z( f: j
/ r9 h$ w, t5 Q/ z# F, v3 ]if ([trust-ok] of self)
( w* G1 ~: T0 J" M;;根据i对j的信任度来决定是否与j进行交易[
4 A) t s+ }9 u1 D- H ?) w* ]6 oask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself% g r" C8 y- z5 [3 Q3 x
+ [. o$ c/ n+ t[
2 ^1 r6 ~4 t& s3 f# F# G8 @8 l! T" K, Z2 F% C6 n% n D
do-trade1 \ | {. b! A- |& m+ y, H
9 l5 K7 w1 x0 J- \% O. m& E
update-credibility-ijl
% d$ Z" |/ k% a$ u' O
; ^# C H- `, o8 d3 ?' I' @5 Bupdate-credibility-list
! b8 O+ ]% Q# T4 R# K- q& c) l" }6 ?, [' {/ m5 K% B
+ f0 m" x- F. n8 m7 Vupdate-global-reputation-list& [( H: ?, d$ [6 p; H; g2 J4 C7 X
3 X: ^- C# Y5 C* Z
poll-class* z# n- x! M$ M6 J
) |5 [5 Y9 t" i6 g; d/ @get-color5 c- m8 _7 H b3 e6 M/ k: D' q) O
! a' P6 u6 `" ?8 u( q+ m! b]]% t( c4 L$ [; ^8 ]6 f! w8 b
* h \/ M( u* r: I/ T6 g' {;;如果所得的信任度满足条件,则进行交易5 m" F$ G4 }! p3 m5 A7 F- b& F
$ l. [: s: c# k$ l[
8 o; E+ U _+ J/ H% A( L- j& o! H( f1 Y" R& l+ `, N o
rt random 360
3 k! [& V( h3 s1 X* Q- O4 z& b
. B1 [- F2 ^7 D3 n" i0 Gfd 1
& K5 j' h% [/ c5 \- t
& R0 e- r; p& k7 V9 H% z2 A]
: U1 ^: c/ U% [- [3 }" H: r. ^6 ^, o/ m! L6 G7 e4 F$ l0 w
end
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to do-trust
/ }: _* Q. S# X' gset trust-ok False
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7 ^( i5 h$ s$ K# H8 zlet max-trade-times 0
7 ~+ X$ [ F m+ p. U! \foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
! Y5 ]! f) E& Ylet max-trade-money 0! v* [( g+ K9 t; j+ a% _& v; Z; w
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]5 F( R& f9 F' X; F, }
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 ]8 t7 w" s, C4 h# q. @
6 U1 E0 K! B; e8 ?9 [# z, P6 z' K" I
3 T6 X% z3 r; m& Sget-global-proportion( ]* o. L) X) X7 j9 ?7 v! B
let trust-value
% a' J2 i+ X- Y, J- m) F$ Qlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)- m: k% |# t3 ]9 c3 G& ^
if(trust-value > trade-trust-value): r2 x C- ]& N, U
[set trust-ok true]
5 g1 n! Q( u p, b$ w, J/ |0 Dend
$ n" z- N2 O) \0 g0 k9 b% ~4 T4 Y7 p4 P, Z4 {) O
to get-global-proportion: m$ d; @2 W2 O2 M8 `. O" F
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)( n, j, U) L" T+ j
[set global-proportion 0]* F. `* R* |; I0 K+ o2 ~; L5 m0 P. W8 z
[let i 0
- ]1 _7 [0 G4 {8 g" mlet sum-money 0& Y/ D: g& I$ R/ A. u2 H {
while[ i < people], s# T) F* v0 t" e) w
[
3 e( Y: t/ Y" M2 D! [, Y' [if( length (item i) }; i2 W7 M& J R; X. B0 m7 G3 r
[trade-record-all] of customer) > 3 )
8 Z0 y( [/ n# m; ~) s9 n[
2 C; W. h; s/ Y% ]set sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 {5 R6 J2 d& }( }
]
2 m* `5 w* [' J0 g5 @1 f]/ C: Z+ I7 v( I! w
let j 0* \8 m2 W" P; D! y5 G! n. s2 @) o3 m
let note 0
# W! z4 Q. r/ c+ Cwhile[ j < people]
9 r& p! Y; C# {$ E; P* r% ?[
6 R& K* [+ m% h* i9 B% t. Wif( length (item i+ p2 t6 C$ X5 k6 h! c2 @: t8 z' \
[trade-record-all] of customer) > 3 )* Y' p( y5 m( k8 e8 i
[
- t$ J/ t. ]2 h: S) Gifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! y7 o* B& g9 G/ ^ w# C" R( G
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]) T {6 |( B) v& |* c
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
" d/ T& e2 O h! I]
8 u0 P; u1 H) F* X% m2 \( n]. `! V3 C7 r; B7 v
set global-proportion note: B. m* l) }0 v8 O$ h: X. ^% D
]: `( S; [2 z: C% m
end6 i% X% f# \' g: I" h2 B2 R& _
6 V: E4 e: T3 p& F* w, F# ^
to do-trade+ v$ H4 f% Z8 @! q
;;这个过程实际上是给双方作出评价的过程
! E0 E9 q+ u" {% f% z* y& I& kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: r: @1 Z h( R+ F9 p6 Y7 @( Cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( R4 H$ [* p- z/ j$ x! ]
set trade-record-current lput(timer) trade-record-current
! @" }4 ~. F# v, v0 E;;评价时间' I2 X: i3 F' B5 L# `. c
ask myself [' B5 z5 l+ n# P" ?& M/ |
update-local-reputation) L* O& E+ A7 H& ^- S+ u
set trade-record-current lput([local-reputation] of myself) trade-record-current
; A9 i1 g+ d9 R8 |5 g, c! @]
4 C$ y0 M& u4 tset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself& e5 x2 e% v2 M+ J% V5 l
;;将此次交易的记录加入到trade-record-one中
/ S& }( o E8 S. Q+ pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
8 c3 n# [) b" W; y1 f# S6 d* Alet note (item 2 trade-record-current )
6 K; V$ Z7 C, pset trade-record-current+ K" W8 ]! Z; g6 Y8 G
(replace-item 2 trade-record-current (item 3 trade-record-current))
. {: R# H* ]+ B/ |* aset trade-record-current% M0 _6 O) a" v" S# T$ F
(replace-item 3 trade-record-current note)7 V) L4 s/ r" ^% g8 }
% c, X1 q0 |, N( k6 `8 {% X
& w+ D8 X" K: @* }$ f
ask customer [
3 G+ O0 E9 s, J& kupdate-local-reputation0 _! H9 K+ i! r6 f% [
set trade-record-current1 o: v8 h5 d& V
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
3 \' p7 s: D( A/ ]; I: }3 \+ a& B]) G. W9 y! k* o; {
E* m' o9 ?1 ?
( q8 x: C9 A# Fset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 D' f5 u, }4 E5 O
9 Q# O# X" R- Z7 j. B# i. Bset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 P2 g* ~ Q4 D: y5 I' G3 i
;;将此次交易的记录加入到customer的trade-record-all中3 W1 ^$ c( r) \. S
end
* q3 _! X; R/ K8 I$ J9 c E- [2 H, p. _
to update-local-reputation
. B( R& a9 s1 ?$ I9 P k. d' \5 Wset [trade-record-one-len] of myself length [trade-record-one] of myself
3 Q) L7 {/ Z2 |6 l% R) p5 [) c( X# r0 z# p8 F p+ e
2 d" j; O5 x5 k2 X) }" h/ L# `
;;if [trade-record-one-len] of myself > 3
M; z8 b* F1 d3 S3 E- P; v8 a' Yupdate-neighbor-total
- r4 c0 Y% ~+ y8 [;;更新邻居节点的数目,在此进行+ x* p, U: Z) M* Q
let i 3% | E2 j( C/ ~3 V$ n, N3 d
let sum-time 0
' E. U( b0 v: r# r y- Ywhile[i < [trade-record-one-len] of myself]- y9 D" V' N- v& F- S" V
[
# L+ p, a2 W& g# Q. |set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )! P6 a8 J) G% w5 F0 x* Q- |; O
set i
. \" h' s* @+ i( i + 1)
* y3 x, T* L$ ^' e' j]: [, E- W: p9 `
let j 3
0 z8 M" [* C Z' N' |3 c# ulet sum-money 0; Q3 Z- j' X7 X! T, c8 n! w* U
while[j < [trade-record-one-len] of myself]# v! x6 V$ d) E
[
4 ]+ v% s7 Y0 x% \' `set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)1 z9 T# r* W6 ~0 ^: ?) z/ o7 {
set j
7 g' k5 f% j3 U& @% ^( j + 1) i, h* o% w: ~1 j! `; h
]8 O, H' r9 J* g1 i6 w* ?8 y
let k 30 i4 D7 H9 e# L- I& N
let power 0( t9 Y0 I. K5 D1 y/ n- ~8 W$ U
let local 02 T3 W$ m# Z0 @2 b4 h# s% d+ U
while [k <[trade-record-one-len] of myself]3 `' O4 \1 |( ~+ H" G8 _6 L+ M
[, Y& u. g) R; S6 P
set 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) : T t/ i, i0 G+ \
set k (k + 1)
' a5 _% x" q/ e+ P. O]
! j. d; r3 ]9 _set [local-reputation] of myself (local)3 D+ z" G+ [/ I% r% P- l
end: @, j9 v" U P% R
' E$ i7 p1 O* z+ ~( R2 y
to update-neighbor-total
5 z9 U( t2 B' }9 y6 f* O( \( m- o) N; U. B3 ~; k' s
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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4 Z4 Q! f0 N# Y$ o! {. o0 L; m$ X! U; y# D! ^
end9 K* j" b% H+ `4 {/ A
# _, c" m5 i( q! Z( m* u# L( t
to update-credibility-ijl
5 C2 L: [! N- O) j% ]# O# @9 \2 W3 q0 p2 Z
;;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。
/ y: j9 Z! ~. L; D+ m4 qlet l 02 z# @* z4 C! u( W
while[ l < people ]
r- k! _8 p2 j% ?1 |2 ];;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
8 ^+ w+ U) w, R$ O[
* j3 d8 K- d5 w% V _let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
$ @1 }* V3 y j; ^) Mif (trade-record-one-j-l-len > 3)6 a7 v& I, Y ]4 h' J5 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
6 d) n8 [% T! v/ Flet i 3
5 x! d8 b* Q' Q/ zlet sum-time 0# B, J5 z! h2 b, m) [
while[i < trade-record-one-len]3 h( t" f2 d0 {# y2 N
[. x5 [% Q0 H/ I. g2 n
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 n9 _+ w4 Y( \2 _7 U; dset i
) T! p- G) c9 K; ^3 ^0 D( J/ s( i + 1)
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let credibility-i-j-l 0- d# { Q1 ~8 Y5 O; q' p& H
;;i评价(j对jl的评价)
# q+ a; u! f$ @, b2 alet j 3
/ ^3 J a/ ~) P! Y( S1 tlet k 4
/ t3 b1 W9 |8 ~7 Wwhile[j < trade-record-one-len]
3 t( }2 n5 w8 `/ O[
" N, P3 X$ v. awhile [((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5 @; Y& S; ~ s- M3 v# M4 ~# H
set 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)
% |$ e4 A% Q6 t, t( D- u2 q7 zset j/ b5 k: \4 d% ]: f( s* L, O G: ?
( j + 1): }$ v; q: R& j8 ^
]7 c! y4 _6 X7 P/ ?2 Q- L! ]1 r
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 ))
* G; O& \! v; U+ R" a* `
# e4 \, e5 V, w4 f0 t$ N3 r( O: {
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))$ L2 A4 H" b) M
;;及时更新i对l的评价质量的评价6 i3 M1 q. k' Q/ f* i3 I. _5 i& E- X
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
2 \9 Q' r7 H( e- T. Hset l (l + 1)
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end
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to update-credibility-list
# j; J) k3 T/ K! r" Y2 \ {let i 0+ [9 |, _0 }- f; {$ v$ d
while[i < people], u; p1 ~' p0 V7 A+ ^
[
9 Q( y: t0 h L( [4 Glet j 0
' m/ ?1 D5 l6 ?2 k" v* |. F: glet note 0
% K( O$ }9 K0 qlet k 0
! ~/ u% c7 [0 V4 r9 k;;计作出过评价的邻居节点的数目" N$ h3 E( ^$ X; X
while[j < people]6 Y- d) Q& u' L- I3 \$ q: \
[
7 ~: k: P' I9 q2 u: ]if (item j( [credibility] of turtle (i + 1)) != -1)
- j \$ Y' i! }& H% v2 @6 C0 ~! E% c;;判断是否给本turtle的评价质量做出过评价的节点3 g5 F' C4 d% K1 u2 `) U9 X
[set note (note + item j ([credibility]of turtle (i + 1)))$ c+ k3 f7 Q, }3 S$ t
;;*(exp (-(people - 2)))/(people - 2))]" y7 o2 q5 F: z# h
set k (k + 1)( |. l0 A% G; W4 O
]
( Q7 |0 b9 D7 P5 m. Q/ rset j (j + 1)
- I3 @2 T- f+ i- r4 ]) h]: g2 Q. d. ], }- C9 T1 T0 A
set note (note *(exp (- (1 / k)))/ k)$ O* N; z' b- N0 V, w4 V I' B
set credibility-list (replace-item i credibility-list note)& s# Q$ ~1 u! K3 x4 ~
set i (i + 1)
7 g- u( I! ]$ Q3 X]
+ |0 f7 n5 \( r) D Aend
; {6 |8 a5 y# s3 I* r6 K' R' h- h! U% W4 U9 G$ n* c& ]6 q
to update-global-reputation-list/ ?) G. i" A) h. G
let j 0
4 Y9 i$ o/ i5 W3 iwhile[j < people]
$ o0 D3 F& O. W Z+ E[
5 R/ l6 ^- ^2 h' g, Olet new 0. y3 }7 R: p9 m* o* k4 N4 c. B
;;暂存新的一个全局声誉
( j+ B" | ~0 z2 q$ u! N4 Ulet i 0
* V) p: B+ K1 nlet sum-money 0
, k8 h4 i' F+ \" ~let credibility-money 0# z6 c% F* L3 p- Q V; E
while [i < people]
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' G. o% y; {5 }set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))- Z) }- j( P$ s& n0 h
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! C; Y: H4 Z/ Y8 ]
set i (i + 1)
& \% D8 ^, D. Z$ s]
3 k/ J8 |% Y: O# Klet k 07 y3 c- [- E' |' W3 _
let new1 06 O" n% l, Q! d2 R) Q, J# C
while [k < people]
$ F. @8 `7 |% r: h: t) Z3 Q! h[
) o t4 ^: _1 L6 f# s8 Zset 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)
$ n% P. f9 X* {' Q/ Rset k (k + 1)
& M6 E2 K7 q6 \7 J]) N7 k( P5 y) N8 k& q, Z
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) & I6 x, ~7 s! N2 G
set global-reputation-list (replace-item j global-reputation-list new) k- X3 q+ m; X6 _- r
set j (j + 1)
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end' ~ |7 Y4 D1 F/ Q5 I8 f+ Y' N
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! J8 I( k# i6 n$ o3 B+ ^6 a
to get-color% L: Y' m' a8 B5 U5 f9 B9 w) W# F' r
9 [' E- y( H6 C2 h1 \7 Sset color blue
8 j% S' O1 x- L- M9 M( A. ^end) b- o( D( C9 z/ r- p
- U* u9 N9 [7 ]; G( o! g$ Z/ c
to poll-class
# N; l% h+ \' s' _. F% r* Tend# q# K7 O+ ~( r: O5 h; R
* i+ p+ f' a, t; [4 `5 e
to setup-plot1. N1 a' q! n8 a+ A0 |1 a6 o" D+ M
( `' w( |, {6 \* eset-current-plot "Trends-of-Local-reputation"8 \# `+ p- P# r2 A& A3 ]9 _
! N, \- [4 d- Z0 J" f0 {set-plot-x-range 0 xmax9 U, i% B( Q8 F; x8 O1 t
. M/ q" C: D: t' gset-plot-y-range 0.0 ymax# Q# Z7 E( t4 l8 {# ^! w8 J) H
end3 J: f# J# p1 k
, [ @% y! P: @$ U% mto setup-plot2
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set-current-plot "Trends-of-global-reputation"4 q. Z) M& M4 k6 c* }* \3 I
8 Z7 R2 K8 W9 pset-plot-x-range 0 xmax
$ D3 X2 s" i: V: o
: | a0 Z2 u5 Aset-plot-y-range 0.0 ymax
& w5 L6 B# P8 A( _. H# fend
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L f! b5 [; V$ }5 l9 ?% zto setup-plot32 i5 l- J9 r- E) C
" ~/ x! v- ]; [% Tset-current-plot "Trends-of-credibility"
% E. y( D( F! Q# e y% D" k# R3 l7 U! D( C3 R
set-plot-x-range 0 xmax
7 W3 A; h' \) a1 G! @! Y' w9 @
; E+ H# I5 [) nset-plot-y-range 0.0 ymax: ]% D6 W8 e) f3 ?; |& ?
end
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to do-plots
- D- Y1 H! a" i) Q+ Lset-current-plot "Trends-of-Local-reputation"
( y2 m8 [3 \$ S# P9 r) `; hset-current-plot-pen "Honest service"# W* P2 D, @& m/ \; K+ ? r
end/ `) ~- P @3 c' u3 p6 ~2 m. }- s
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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