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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
% H) I1 W) l% x, nglobals[' H0 I' u- L; C; P7 x6 x D
xmax
' H' Z3 R- E% |6 k' s8 s# Bymax, a" T3 g: |0 t! S
global-reputation-list/ c% E; V% `% `- o
0 z. r6 {# g" h8 P5 f v$ P9 a
;;每一个turtle的全局声誉都存在此LIST中
) ~2 a# P+ y$ }3 ^7 Icredibility-list
7 E1 ~0 f4 _' P+ h! f;;每一个turtle的评价可信度
8 q: x+ T) g% K* Chonest-service
2 |1 T5 v5 @0 o/ e8 l# a) q. ^unhonest-service
4 w# Z$ V+ U5 T1 f) x- eoscillation0 v: y" D# x1 n9 ^
rand-dynamic
* s; w: c; Q& D% {( N]" }2 ]9 h; ^. v |- y
* G# R7 `: E$ g: U! b1 j, rturtles-own[
8 V. l4 X, P- h# htrade-record-all
9 [4 }0 o( B/ F3 F* p;;a list of lists,由trade-record-one组成
% [5 y0 _7 D7 `. V) [trade-record-one- r/ Z3 B7 X8 W9 d0 k5 k, F4 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' D0 @0 w. N: n6 Z; N
9 _) m, I5 I& P4 {" H6 X;;[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]]
$ C# ~- q0 X# ]( [( btrade-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]
( z. d1 C% v1 U& D; C/ w$ O$ bcredibility-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+ A5 J) d8 U/ R
neighbor-total
4 ]9 j: {: {9 w8 S- F;;记录该turtle的邻居节点的数目
7 }# B) t, D* C. m# V, p. ptrade-time
1 _, P. }- x- R: h;;当前发生交易的turtle的交易时间
$ Z7 m4 x9 b% g0 Nappraise-give0 Y6 @0 r( |, e$ g$ X. _% ^
;;当前发生交易时给出的评价
' d* e c* R5 V G+ @appraise-receive* o$ o; e9 ~: v3 C/ U4 o
;;当前发生交易时收到的评价
5 P: w/ O; e* J: }8 p. o9 Xappraise-time
1 a& [6 c0 k r( O;;当前发生交易时的评价时间
' \3 I8 G y1 {local-reputation-now;;此次交易后相对于对方turtle的局部声誉" c. @7 u) S. m8 n9 \
trade-times-total% g; x5 X! G, d2 Z" K
;;与当前turtle的交易总次数
* A. [ c, u3 ?trade-money-total/ f* ] B: s; h) N c
;;与当前turtle的交易总金额" G8 f& W1 Q0 n C) b2 t p
local-reputation
9 f+ n- x' v0 h: W! Q4 Aglobal-reputation
, n: Q% k/ n0 Z/ ^4 ?credibility
3 @% y X% A9 \;;评价可信度,每次交易后都需要更新! p& i4 ]% K0 Y
credibility-all
! U4 S/ y: P; p;;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) Q' y Q. ~/ F" O
% B4 K9 |6 [* Z5 a;;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
6 U, y+ z& V% `" Fcredibility-one
+ ^! D9 _& X8 u, `5 w" a" ?# [' u, b# D;;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8 `! W6 t- u/ W& G4 n
global-proportion
# }& Q1 ^3 H+ M9 c7 Scustomer: P- h3 F6 t6 w- e, s
customer-no
; ^: Y& |# j3 O7 \: |5 w E6 Strust-ok' R& k9 e) k$ C0 b7 b
trade-record-one-len;;trade-record-one的长度1 \2 {3 G2 F% u4 ^
]
6 ?& d$ a7 I4 _5 P0 y1 B0 b4 w/ f# g
;;setup procedure/ I+ J8 M- r! z- `7 P0 W
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to setup- {: Z& H) f5 x/ a) \0 s
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ca
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initialize-settings
2 g. L/ m5 }7 [- ]$ U y
* h1 r: S9 R M7 h0 w+ Wcrt people [setup-turtles]4 _* S7 E! b+ ^4 P7 D
- V% I$ x* R) creset-timer2 p" z, ~' ^/ g2 ~
5 Z; K' l6 M& l* V$ v
poll-class
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2 K, I. C3 x9 C) _) b5 a. ~5 xsetup-plots
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do-plots) i* f4 P; @! d' O
end
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' q9 n) g0 B( l) {1 \$ i tto initialize-settings+ y; N- ^$ e" l3 q* O, x$ W: f% t6 l
0 ]9 \9 A* q3 u
set global-reputation-list []. z& T% X* y. ?2 X
: c. W. \+ E+ n) j4 Jset credibility-list n-values people [0.5] U( P+ c- j- A; M( E
& u7 h7 _% y9 Q$ B9 t& m
set honest-service 05 p! H: `8 i9 e
' K, [5 I, E" S5 S9 v' n
set unhonest-service 0
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0 ~6 G6 j- P0 N0 Z) Z* wset oscillation 0, q. |+ W0 B: @ r( b
* [+ V! P4 ~+ K& c( P" s+ ?
set rand-dynamic 0
& v% U, x+ ~- {: s( J& Send1 R, ?9 d0 Q% h: G8 E/ p. [- E
: U. \ L6 M1 v7 ^5 x! H9 fto setup-turtles 2 k' p7 j# n1 N5 L: Q4 E9 }, c
set shape "person"
' V5 R3 [* Y) y" M0 R2 I# H8 n; M& @setxy random-xcor random-ycor. G. c! S8 }% j2 e
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
0 i" _6 ?) v2 s1 k% O) T6 h% d& @- U; e6 _
set trade-record-current []
- q+ z; J) @# |6 h: C1 Kset credibility-receive [] w6 @8 B9 Z& Q# {. d6 U ~
set local-reputation 0.5
. b9 B7 ~1 s. J. e* @2 g1 ]set neighbor-total 0; f$ E+ u5 ~: z; @/ a* m
set trade-times-total 0
* y2 E+ O% G7 O6 O* P$ I' m- U$ @4 Wset trade-money-total 0
% V; q; p2 F, iset customer nobody
- N3 j$ d+ T; J3 uset credibility-all n-values people [creat-credibility]
; j: p- s+ b$ ]9 a! W7 N* n! w( Yset credibility n-values people [-1]5 _8 F# X x: }
get-color
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, Z% N+ W4 S* v1 R) [+ \* Dend6 \+ n4 R1 G! k2 K: c5 z F
6 a0 E- g+ v/ h- l/ I1 Xto-report creat-credibility
2 [' ^/ {/ \/ c5 P/ vreport n-values people [0.5]" F2 x8 {, _; n& A1 I' M9 f, y& R
end
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4 ]' o! j6 f1 p. Fto setup-plots
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- ?3 ~; n( G+ { L$ a& Y3 aset xmax 30: M5 E. Q: m7 ^* b
/ _9 P1 c0 k/ p0 X" A2 h# [! N' }set ymax 1.0$ z+ c9 ~( o! z7 k) v/ w6 v; p$ Y
; Z/ E& s% M8 g7 ]clear-all-plots
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setup-plot1. D# D# W/ s3 I2 ^6 W
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setup-plot2
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Q, @ ^# K* T. G, S/ f! A. |setup-plot3
( H' k) b, x) B3 xend
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;;run time procedures: N( {& t% U/ a9 u
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to go
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$ l7 M9 ~* j6 v6 g7 R/ K& Xask turtles [do-business]$ X' _' a) A+ _7 K/ a& z' {& P
end
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to do-business
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0 \( _# J% W0 e" w& N* _8 a) j8 u( ]2 n L
rt random 360
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. M7 Q4 s6 R% d+ y# [fd 12 g6 K3 R% G- e/ A6 h9 z# M# t
: C; n, C; [5 v2 t3 b" bifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here& d6 z2 L3 ]5 v. _8 N$ L
$ A$ A& l# ~/ u5 j0 X;; set [customer] of customer myself
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7 @0 Z' O! n3 r5 V8 ^- vset [trade-record-one] of self item (([who] of customer) - 1)& n" p1 Z1 i( ]6 b' p
[trade-record-all]of self! k! f% Y# P3 w& B& ^
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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, j- |! l6 f' @6 a: a$ w1 Nset [trade-record-one] of customer item (([who] of self) - 1)) E, u( ^5 q: G/ x9 K9 \5 @# u0 @: W
[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))# t3 b6 u% D5 w# H8 {) t
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ask self [do-trust]1 H. a( B2 J$ O
;;先求i对j的信任度9 Q: d, n8 L6 ?
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if ([trust-ok] of self)+ Z8 S+ u9 k' t5 U; s: o* U
;;根据i对j的信任度来决定是否与j进行交易[
& |0 `. N2 L; S2 L6 p& A: @ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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( M4 J* ]' Y& z) l( x. {. p[
- `8 Z! \: d5 d7 g% W' c9 i8 \5 [! _8 E1 k/ t: o# n: P; D( J! Y
do-trade% p7 ]0 |& B4 [7 H3 ~* V+ h$ I
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update-credibility-ijl& g# }1 }; h( f9 R7 E
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update-credibility-list
: { m& ~& r) [4 j; v' a. [+ E2 z+ ^. L2 Q6 J; w) |
* M1 i" \* E, p5 y, s- z
update-global-reputation-list) r! X7 _# |; o
) {# U* t$ F4 x, w) T( [( qpoll-class& v! h2 N! K- [( P$ j$ e" v
. R& P* N* p; K$ vget-color' Y3 f7 G2 c% Y/ b t
* f$ X8 S5 [' @- T I4 T
]]
O- v# q+ F. R7 {; t
7 ?* f, r) s# z' W8 G9 ^( }# E;;如果所得的信任度满足条件,则进行交易9 a0 q; L* c4 z
" ^2 Y. y0 R2 H4 y9 Y; t' k
[
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+ i8 x2 l) t. U) f: _rt random 360; y4 g V( n4 c& I4 X. D$ W: @, p
; ~% K3 M) M% H2 s
fd 12 C6 O. ] x; ~" }
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9 q! {. D( r+ ?* ]4 @9 h' o) C! k% _# |
end. E3 }* H. o) W& r
7 E1 v+ a9 b- H$ ]" Pto do-trust
2 g) W. O* Q" ~/ U1 Sset trust-ok False
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let max-trade-times 0
, t# T) ]' f! I! Y' R) c7 _+ |foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
# S( R0 v1 _1 U0 T" E: blet max-trade-money 06 o7 H- }6 g. G- i. \
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
$ \! H+ S# l, j: p$ U9 h" flet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% [! [) _% M) f1 F2 j5 Y. @! L2 L, j
4 V" F G8 x& f( A7 c8 X/ A! n$ c T: `: \7 c6 A
get-global-proportion
' U0 l) ^- o/ z. G$ D! v: ~let trust-value
" r7 K+ i3 I# k8 B0 j& glocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
! I O5 k9 Q- h! m9 _if(trust-value > trade-trust-value)9 a6 Q( d d. r8 Y3 M8 y3 q
[set trust-ok true]
w) g' |/ Y8 s5 p1 [4 w% Iend6 k* |6 i% v3 N) H5 \+ E
2 M+ K+ r3 L1 E: b" z: ]3 V9 z8 D
to get-global-proportion3 b: r3 R' N; Z) c y4 W
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
0 Y, w' S: y, _8 p! O! Q# B1 t[set global-proportion 0]
& V! Y7 T% I- U* _+ k' s! y2 [2 ?$ O[let i 0
* N N4 S7 Z* ]! jlet sum-money 0. B7 A2 f: i w
while[ i < people]
! u: a7 h8 k' t# i9 I[
9 N) u8 Q g% C p5 b9 {7 y, S; {: nif( length (item i. e7 B6 D4 t/ P+ X, ?
[trade-record-all] of customer) > 3 )
7 v2 ?* j) y* q; O[, Y! }6 B! C! ]- E& I2 ] J
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))' s, [- {% g& s: O) p; A% {
]
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) K Y! Q/ I( [. z. w6 O, f2 olet j 0: k9 }: q: t: p% z _% D/ w4 d
let note 0$ F- O `& ]# D H
while[ j < people]' U- _* }2 |5 X8 r4 N
[
0 ?2 ~# \0 V, x H- f aif( length (item i# m/ R/ H+ Q `& g5 d F
[trade-record-all] of customer) > 3 )2 \, b K8 k, z% B) o
[: E, y% c1 u7 ]3 h" n+ g
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)' x# }( r! d+ Z# E
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]+ m# U$ }6 L f3 b; E- Y" E( K
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]5 ~# P4 N& I* {- V" f: J5 b
]
7 c4 D4 B0 V3 A6 N# _]
0 d" |1 c7 x ?4 Yset global-proportion note
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end0 x2 i, U# u O% N7 p
4 N: T2 }( c4 S$ O( g3 kto do-trade* ]0 ? s: \% Q" c1 [3 h
;;这个过程实际上是给双方作出评价的过程* R U. I" K7 M: m9 J" Y7 H# k
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价% F$ f; K k* _! G* ?/ I+ }4 i
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
2 u6 R0 p; F" ^1 C o1 T: O$ w+ C# wset trade-record-current lput(timer) trade-record-current5 \* P. S4 _+ ?4 f6 `) Q, C
;;评价时间
0 H+ J }1 s! c+ yask myself [
& b) i( {, }1 b D! \update-local-reputation
$ ^9 c' z6 }$ f$ fset trade-record-current lput([local-reputation] of myself) trade-record-current. p3 v/ k7 A# e8 r8 J
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
* \/ `- m# O+ g. U5 x7 ?;;将此次交易的记录加入到trade-record-one中
+ n! P* ]3 B# j" G+ S# D1 y, `set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 o# V" U# e; W% n
let note (item 2 trade-record-current )
2 H- g# J3 N8 q4 ]set trade-record-current3 X# ~2 y! n! v2 l! f. h D
(replace-item 2 trade-record-current (item 3 trade-record-current)). z/ C6 s _* z" `+ l) H5 `& V% e
set trade-record-current: r0 ^6 [+ U4 j( q4 x
(replace-item 3 trade-record-current note) U9 E& k0 ~7 [
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5 {. ?$ m5 X: ]: \/ ?
ask customer [
# \; R, `5 H! u! E0 q6 Supdate-local-reputation" U$ c/ Q; _* D' K7 P* o* z2 P( p
set trade-record-current
: V6 i9 _- F0 ?, Q7 M7 O, X a0 A(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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3 N, @+ k+ j$ H% e' D; W fset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
. P" _5 Z: l) q) n
" c4 n8 U9 h, r1 Y5 V3 m' ?& jset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& r( U7 @6 e* c8 J6 r& |;;将此次交易的记录加入到customer的trade-record-all中
+ k& w/ ]2 C5 K3 m1 z _; lend, H r3 j6 [' j1 ]; R3 W X
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to update-local-reputation0 \* |; \, T/ c1 @8 N% y: b
set [trade-record-one-len] of myself length [trade-record-one] of myself
% y7 @6 I( G9 j' P+ G2 T E3 m' K, i" b; h, ]/ _
% F. C6 w5 n0 F. I4 N;;if [trade-record-one-len] of myself > 3
, C! p; B4 d/ H2 L" w, Z6 ^update-neighbor-total$ N8 e: `& i0 w! V6 I! D" U3 Z6 C
;;更新邻居节点的数目,在此进行
- ]% ?+ D. v) z& I, V ylet i 3$ y9 h, t0 }; G1 W* w" |: _
let sum-time 0
1 _: W0 Y0 h: Y# v% Ywhile[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 v1 l1 C* V: P1 Q/ Aset i9 K' o: F6 r+ n, b) D) P) ] Q
( i + 1)
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let j 3, N# y" K9 i. H. z2 q; M& K$ p
let sum-money 0
* a8 H3 W, {/ W+ o1 |while[j < [trade-record-one-len] of myself]0 X& [! H7 k4 k# G0 k3 G
[4 Y# _2 x! i: A4 D. Z
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)( q% z# u) D9 m! M, I
set j
, v2 K+ M; M1 f( j + 1)7 _* A4 h% J( e: d
]+ V: A6 a3 s" P' ]# G( U
let k 3
& {. r0 T" D: o" f# ?let power 0
# ^( G: z5 {$ mlet local 0
: z9 @) U, R# x/ N& \1 ]while [k <[trade-record-one-len] of myself]2 U& W- O1 L( m, ]! ~
[
1 p' \1 E$ _9 c* L; P2 gset 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)
& Z0 n3 i; P0 I% F2 T4 i& p3 f/ Vset k (k + 1)5 S" N/ @* a7 F) `
]
2 S* O9 r5 a8 Aset [local-reputation] of myself (local)# \9 r( [/ D% l0 b; \
end
2 {0 R/ J+ p" ?7 M) l) D; P5 @! f
% S. B2 P9 v' [2 C6 e! Fto update-neighbor-total4 T, d) i! }& G! {4 z
& x4 T9 F9 d5 y4 F9 b
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]( ?1 e; K6 V! Y
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" B$ u9 A3 j/ Z( y5 Wend
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* k9 r0 F8 ]3 o# ^4 x3 Yto update-credibility-ijl - ^: a* v }1 k
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;;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。
/ R* m- {' u- }) F, Elet l 0( D- i' u8 E' D& K: [2 p
while[ l < people ]
/ X) m* {2 e6 f; K;;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 |4 P! `" y0 u/ d1 F0 q8 c z
[
7 D7 N: @8 Q# s) I ^# g# C3 A. T( flet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
4 Z6 Y+ n$ n p. B: j- O Fif (trade-record-one-j-l-len > 3)0 i% ?) y" o! v- n6 b% H. O) ?
[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& ^- j) r5 \% {
let i 3 I; w- H |' d* P0 j4 x) t, ~9 \
let sum-time 0; r5 T# k( t& t+ P5 H5 M* N
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )/ t: U: t" Q2 w
set i, x0 }( S# O9 s' K7 T' x* ^
( i + 1)
4 [6 y) c' R1 N, v4 S7 V9 a+ a]
' B7 m' v4 p$ v9 H$ `, S flet credibility-i-j-l 0( i) Y2 b8 H' w* l' @; { q
;;i评价(j对jl的评价)9 q7 Q" b r. _% K7 L7 V0 _
let j 3! _- j* _- C [- M
let k 4
4 W% E" |- }4 \3 S. l* S* o+ _ n- Rwhile[j < trade-record-one-len]$ ]. [6 J3 ^# }; ]1 a/ z f. o0 S
[( H7 E7 U9 V4 D) O, |' q# {
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
! O' \) L/ T) O- V0 S3 {8 ]' xset 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 F2 a$ U- a7 H: o8 Dset j; t' [. |3 D+ }& R# n+ k
( j + 1)
+ Z* p/ j5 H: L' G$ u* B+ x5 J]8 z5 d8 L# V8 d( U; g
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 ))
$ Y& R) w( T$ Z8 i! L- S k6 {
$ w5 N3 Y6 i. }* a7 L. f
6 I0 y- X. V5 Q3 Y: p; E& V1 Flet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))2 k5 Z2 C7 e- y5 n& I1 b, W
;;及时更新i对l的评价质量的评价7 }$ z& T2 {1 X! ?
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]/ g2 K- F7 z/ `. n
set l (l + 1)) o2 G8 l7 Y6 q6 p
]7 C7 X* C6 \/ q. c" {0 ^/ ^% ^5 }
end
8 Y/ q0 Q! k! p% b$ d/ z
( C! Z! g& `4 B6 g* E rto update-credibility-list
( j# o8 D, f9 [5 Ulet i 0
, Y6 T0 v5 o3 Owhile[i < people]
, _' b @1 Z$ T {/ l& \- e[
3 d7 l' X7 t$ \0 K, V! hlet j 0
- Q. a* `, B* _# ~let note 0
$ G$ u9 n8 o7 X( zlet k 0
$ x0 n6 j5 S9 j: L;;计作出过评价的邻居节点的数目1 M) B7 G* |* k) B- M' \( G
while[j < people]
$ T# v* _( U9 }# _2 V+ }7 ?( Z1 f[' M0 J2 L) k8 s+ [, r& u) N' c
if (item j( [credibility] of turtle (i + 1)) != -1)
7 k) M. M4 a; j P* u x;;判断是否给本turtle的评价质量做出过评价的节点
/ _& Z5 Q1 x: w: w[set note (note + item j ([credibility]of turtle (i + 1)))
1 y) j# j6 l, r# M; C- |: ^: ?;;*(exp (-(people - 2)))/(people - 2))]
/ G+ ^0 L' }' x" B0 u8 }) m/ _set k (k + 1)
* H) a. X# @# F9 c. }4 T]- a5 x: p# v- C; {3 ~: |9 F
set j (j + 1) ^ i; P2 @- v, S) u
]
C. ~. I l/ [& m# _1 |# C$ |set note (note *(exp (- (1 / k)))/ k)+ K3 u+ @6 v% b
set credibility-list (replace-item i credibility-list note)
X1 f0 l7 g. r3 Xset i (i + 1)
' o- D( E0 x. u4 [& J& i& q]( v% F# I9 d# @# F& E( N
end
# _; k' K, \7 B0 I& G/ U: u4 ?) c& ]. m+ }* o2 x
to update-global-reputation-list6 d0 N# _: F2 y- ] ?7 n- l/ Z7 }
let j 0
9 v5 ~, l6 r& W0 t, zwhile[j < people]
9 c3 `" u+ L0 C I[# {" h- L+ d0 ?' P, |7 J
let new 04 t j! J* d/ E. \
;;暂存新的一个全局声誉
, o/ Y# U- Z9 rlet i 0& h; a" S; u, B; ]& c+ [7 r
let sum-money 0* d6 d* i9 p U% _
let credibility-money 07 w, I6 g8 s) W
while [i < people]" Y5 u* V) j P6 @7 q9 L3 K d
[8 ]/ E& M# ?+ d" {$ A
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))+ [' F- J: k8 O/ O4 D* [% p$ n, V6 q
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
2 e- F, F" {, I& d& j! A/ Gset i (i + 1)
4 g' j7 d! z4 u. Q% B8 F' b]: F- M, [6 W% l3 C" g' P8 Z
let k 0
) ~) a: x% V0 p1 Y) u) wlet new1 0. e a0 [$ f7 }: Q0 e
while [k < people]- q2 j3 l8 K8 ^$ f( g2 m) p
[
2 H4 r3 d/ x P3 E0 \- m. Gset 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( @3 ~; C# p& e3 h9 x# fset k (k + 1)7 ~" K0 c6 [, K$ X
]. }9 ?9 f" e O* I/ ^
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) - V3 H/ _$ \5 N
set global-reputation-list (replace-item j global-reputation-list new)
- k k. }, i% v" Hset j (j + 1)) G' A, \9 H7 B7 n: x. E, S
]1 b7 Y, I# K+ f1 c4 n+ W
end0 u) }) t L+ e' V
) j& p1 a0 ~3 Z" ^; D7 w8 f
; L( v! g3 M1 O2 v9 |; _3 E4 x; ?! W( y/ D% d5 c
to get-color
5 M+ q7 ~/ F' x6 H
7 D7 Y+ H& m( n, `: l9 p/ s( [set color blue
0 c6 s1 C: _% ]+ Uend9 t5 r9 U; ]' ^# B, j Y8 y
" s- u- `2 T+ \8 Z; I6 A
to poll-class
( _4 O" \- W' }" Q) W) bend$ J6 S/ P% Z& V7 h$ w) I
* I U5 f7 @# A) [* [" x
to setup-plot1
$ F, l! J y6 [( S- J$ I$ ] R2 R [1 p7 P5 [/ m5 {8 b
set-current-plot "Trends-of-Local-reputation"% Y2 M) z1 k# k: V
$ C+ `0 [0 v7 X1 I8 C7 m5 \ M/ Qset-plot-x-range 0 xmax
6 y# I* b+ N2 h2 Q6 _# _4 v6 c
( H7 E' p4 ]3 D3 [+ p% j5 cset-plot-y-range 0.0 ymax5 o4 g- c# w- x2 W+ d* b2 `
end; X) y6 ]" t! I: }6 j$ \
/ S% l7 c* J }+ A" w! d7 w
to setup-plot2
" \0 ?4 X/ z/ j; b# d
" U+ m! s) r x( N2 hset-current-plot "Trends-of-global-reputation"8 [# }' ^$ ^. N9 {' l
8 |3 E$ M- i' M$ p3 B/ k5 `set-plot-x-range 0 xmax4 F# J! ?6 F g- d) n% h/ t
8 w4 ~4 k1 [- o7 u
set-plot-y-range 0.0 ymax
* W" i; c3 N7 q1 z5 Pend4 F" J% \9 }6 w8 ^& ~4 H8 V
" J) h: a# k) u/ I' dto setup-plot3
. s2 M. }- S1 w% T- ~: p4 A
9 D" l8 i1 A' }8 b4 V% Cset-current-plot "Trends-of-credibility"
8 ?: P; T( b/ _2 M; k- n
" f0 I/ L: l. I3 w9 r7 y0 tset-plot-x-range 0 xmax* h5 J k7 ~; Z0 S1 D5 o( c- E
: J: J, a& K' u, y3 L& f
set-plot-y-range 0.0 ymax
5 M# d7 N! q( O8 ]' q: i; `end
8 L n$ R$ b4 x+ S( K) D* T& ~; ~5 ?
4 \5 o0 T7 {0 Sto do-plots( z7 r5 e( ?! s* a' g0 y/ H4 v
set-current-plot "Trends-of-Local-reputation"( m' B: g% g& ~) `. m0 j
set-current-plot-pen "Honest service"* q4 U/ l* T1 }
end% _$ O0 i* `) [1 d w$ E5 l
0 [+ [# `9 W9 m2 G% {2 L; ^[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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