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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
2 w7 _5 J7 `" f, rglobals[
( x L: m1 m$ w$ {/ I' Zxmax4 L/ V3 J. _5 O3 \- i
ymax
3 h. @& s9 @1 t0 M l$ Cglobal-reputation-list+ I6 } F' U6 \9 _( P9 @4 P
8 E; x5 M0 W; M) q; ]: F6 x8 s;;每一个turtle的全局声誉都存在此LIST中# l9 z- |; g3 O% c- h6 ^
credibility-list2 f5 ^, M. n+ l9 D ?
;;每一个turtle的评价可信度
4 i( _3 O# y- x. j- ?) g1 i0 f+ |3 ihonest-service
2 g3 r8 N$ J2 Kunhonest-service7 `( i4 o& ^/ s {
oscillation
- b5 E, H4 q6 T3 H( i; |& t/ Yrand-dynamic
4 V1 C4 Z3 d; `0 G]
9 x, Y) ^4 S6 o! e
9 X8 {+ Z3 @& b1 f; k: v3 B' Vturtles-own[
. [# ~$ R. ]' I+ Ntrade-record-all
/ t# L) z' ~8 `* H2 l0 A;;a list of lists,由trade-record-one组成) D# I5 ] {) M+ h8 }7 C* s
trade-record-one
. B+ B& V, M2 m;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
4 i& Q. C0 Z) z& Y2 C' q& T
( B. f, j: }! n, c;;[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]]* w" Z% h3 [ q+ 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]6 Z4 a6 O* i4 q* D# k8 i6 x
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list
% ~. S8 ^+ N& hneighbor-total
! j( w2 h, P" P5 b) ]4 L. o+ g;;记录该turtle的邻居节点的数目
( S7 ]/ w/ h9 t, y k, F. Strade-time0 ^4 \! l2 F, j, w) ?7 d
;;当前发生交易的turtle的交易时间8 M; I3 v ]& N' Z) h
appraise-give: Y6 f- t: V h; B2 d
;;当前发生交易时给出的评价& D' N }9 Z; S3 w' Q2 A6 D
appraise-receive
$ N1 j* |0 l; @7 N( U;;当前发生交易时收到的评价' v! y# i) m' w2 r
appraise-time
/ C H7 z" J/ ` L+ J! t) \;;当前发生交易时的评价时间( ?0 w; G3 `; s
local-reputation-now;;此次交易后相对于对方turtle的局部声誉+ t }* ]0 ]1 O) T% V) ?
trade-times-total
# J8 V, i, ?; B8 E3 G. g/ T;;与当前turtle的交易总次数
9 C$ W0 g% m& z& O3 x* gtrade-money-total
# V6 S1 s8 P" F5 w3 K2 |7 W;;与当前turtle的交易总金额
: O. |5 Y$ j5 zlocal-reputation. N2 P8 l; t- z6 b3 b$ l0 @: i
global-reputation1 A' s( Z. P6 @/ w# p+ l$ @" F
credibility
) f) W% `. g, N" e9 O2 b; _;;评价可信度,每次交易后都需要更新$ Z- l! N2 c, A/ i
credibility-all3 Y: D$ o( @+ f; Z
;;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, t9 S' J2 H0 m) L. \% O5 ]
+ L1 _& X3 U) B;;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
$ b9 M0 G( u* w: t' @0 k" Kcredibility-one3 d' p$ T+ p2 [, [
;;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/ _$ e) Z2 Z! Y4 H2 H# i
global-proportion
: r- [ p( B8 Mcustomer- c# L' U, P5 i7 d2 u
customer-no
- s" f" n: B M/ Q9 F$ L5 jtrust-ok8 P# z1 N! G% @% X5 u
trade-record-one-len;;trade-record-one的长度
+ W. \" v$ E( t6 R4 K]4 F' V' H* ^ h5 \* G; D0 w. ?* N
2 t( F, }- O- @- u* g7 f;;setup procedure$ @; m8 z( M# E+ I, ^
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to setup
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ca G$ [8 |- u1 W2 F' r1 M7 p
& Z3 y* L; l* W3 s5 {; C# @initialize-settings% c* o. m; U' H, f
( @1 E* m# V! F l' ~: |crt people [setup-turtles]1 ]) e7 ?5 o4 v( l x2 @0 r
0 f7 z1 \3 u- ^+ c* @/ u
reset-timer
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! i/ v' i2 `" a3 ^poll-class; S# n- A. m) g" Y6 ]/ Z% f; M2 s
: r3 Y/ H9 u# C' e% f* \setup-plots) c* J+ m5 f7 x
- f% ]1 O/ V1 p! u1 x2 R0 N, Qdo-plots! C7 z& }3 q9 Z" I
end) \, a T3 t. S* x0 j& }& R0 Q9 R6 Q: h
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to initialize-settings
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9 Y: @7 k: K2 Bset global-reputation-list []% }. G6 y: a# l. a# `) A- ~
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set credibility-list n-values people [0.5]
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- q$ ?9 J$ V/ ?set honest-service 0
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9 G& Z# ?- ~& |, }% T, X* Vset unhonest-service 0
' A* X+ V I* a: ~3 i) Q0 [
7 c% f8 s" j- d7 h( Zset oscillation 0
' c9 B( ?1 A; ]
. g! ^0 ?' n% Qset rand-dynamic 0& q4 ~! k: F' I" P
end7 v: V( o" I2 E' p* v5 j$ g
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to setup-turtles
: {9 P1 Y# q W. @0 Fset shape "person"
! V5 Z, p0 f7 E. L2 a" [setxy random-xcor random-ycor
. h2 Z- n( w0 p! O7 p4 uset trade-record-one []
6 ]9 O3 _8 n$ v5 P1 [+ b: s6 d8 h8 g! n/ ?, o! X3 J1 G: V- m* ?/ y$ e
set trade-record-all n-values people [(list (? + 1) 0 0)] / K9 Y" ?3 H: H& p
' ^$ b0 ^' O/ A% x/ Fset trade-record-current []
. \. m9 B" X Eset credibility-receive []
: y- Z5 n4 ?+ Z% y0 K ?. Rset local-reputation 0.5
s% s& T# H d& K* `set neighbor-total 0" O$ t7 x; H" t6 e* r
set trade-times-total 0# O- |9 e# d) B
set trade-money-total 0/ v6 {& d7 h: Q7 Y2 L/ g/ p. |/ Q
set customer nobody
7 z5 r8 R' i. E8 tset credibility-all n-values people [creat-credibility]! u0 b. h2 K! D- r9 L- t
set credibility n-values people [-1]# R" y6 a+ n( @$ X
get-color6 ~/ f E E3 m" T4 R8 t9 X8 t7 [
4 Q: G- z! G: n7 hend
; e3 D. `! n# B( k
# w9 L5 v3 n! Tto-report creat-credibility, n3 C( w; l8 T, S5 B) t! p q
report n-values people [0.5]
1 _" y- {% O& L+ j" l. |end8 D! g1 X+ A: |4 A- h5 `$ s d* O3 e
- z# B/ j4 [0 ito setup-plots1 Q' Z' H# a" ?6 |8 @9 c
' Y# | m7 L M/ K% uset xmax 308 Q% m; o' A3 `( i5 N* U/ {; N
5 Y& p, a& m7 l: K) h, k9 K
set ymax 1.0: `2 Z z1 S4 _& \9 A+ Q
) z1 e1 M; G' B9 @; p( Z8 Jclear-all-plots3 v ^9 g9 k8 l; @3 i
' U, `$ P8 R4 X8 l8 |+ u; ^setup-plot1$ A) [8 n, p& L' A
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setup-plot2, |" X9 }7 R! Z6 a
$ W$ U; E% o8 I; R8 g3 I) zsetup-plot36 J0 C t, I( R; u" [
end
8 H0 d0 f/ T4 U @9 o4 D6 l( V! P# r6 Z8 `% q$ E
;;run time procedures6 Q( s# ~9 ^) c
" D* M0 b# Z* a* u! zto go
& z/ u( K, R* N" k2 r% }/ `, F$ B ]" y9 [! O# S3 ?
ask turtles [do-business]
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to do-business
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: Q* s$ x5 O1 ?* Z7 s/ b: W- I
/ m' Z0 z T( V7 i# w$ N: n* art random 360! {. M. P5 k$ ^$ e9 }, c, `* M
: q: R. K/ X s w& h
fd 1: l9 l) e1 B& J3 M9 Q
! z i# \2 X/ ~, ], {( pifelse(other turtles-here != nobody)[* n# Y' l+ E/ }/ M$ j2 f
( } ]5 Y/ Y+ y# Nset customer one-of other turtles-here
+ D4 |( j' e5 `9 u; Z. `. ?1 H' J' R
3 z4 u9 Y4 E4 ^4 J6 [, D+ ~;; set [customer] of customer myself- w) f P$ m1 K0 C. I- X7 \
e7 e) ~/ ]. P( l$ o# Sset [trade-record-one] of self item (([who] of customer) - 1); a" R' S: I; c2 a5 e3 H: P
[trade-record-all]of self
. _: ?) u; g8 d4 C3 Z1 I, M& r;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
7 I* w p) {3 D6 E
9 b" ^6 @5 \9 [; Nset [trade-record-one] of customer item (([who] of self) - 1)! a8 j C. {6 }" {( h2 [
[trade-record-all]of customer+ g/ p2 e8 z# W v; [: j# p$ }5 e
; M# o! V# V1 O- Q+ ?3 @6 S/ Z4 j/ Y+ Pset [trade-record-one-len] of self length [trade-record-one] of self/ K+ n, n l% e6 s$ | A0 p
# v7 o: v; V( ]" Z6 a" o* pset trade-record-current( list (timer) (random money-upper-limit))
% n5 s# j: F' T4 P
* T7 W* g# X" S. V" `; Qask self [do-trust]
0 p! E( r" V- c/ \ l;;先求i对j的信任度' ]% j e- t; ?2 e6 R% |
( ^5 }$ H+ B. g8 C$ pif ([trust-ok] of self)
0 u' J( a2 V- |; ~5 v L: T, n;;根据i对j的信任度来决定是否与j进行交易[
2 v" o5 K, y' v/ Nask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself' @6 I; q: b3 w2 A a, d8 b
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do-trade
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( D% ^- P; R. a& O: yupdate-credibility-ijl
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5 E8 A0 i4 N/ k) n% i" ^: ?update-credibility-list
2 i8 t3 I3 K6 ]& b5 U5 o) P' | \0 D; w+ m. X9 j5 b+ w ~* g; a3 S6 k
8 o! m% N8 d: Q6 z3 t1 G' P1 |" gupdate-global-reputation-list/ \$ J, R( f) F! r/ }+ h8 M9 J3 q
7 n+ e: O- K+ L3 O( r0 w9 b6 [5 Bpoll-class
# o8 j `1 {' r/ ?# r. o W. ^4 o+ ], S( w- V- ^
get-color
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) j- V9 E% @$ K# s# u4 z]]# M. W* }/ z2 ~0 M
6 f. m9 R# }: O! H1 s: s3 q X
;;如果所得的信任度满足条件,则进行交易
2 ?, v) r* P+ y3 y0 q1 O3 f" y7 f0 n6 v, y
[; F8 P; @! H) w( c6 H: f
! q( Y' {0 F8 d* Prt random 360
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% h2 S# i' z* ]: i5 n; w* F) |fd 1
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9 I$ B y$ T) x! O+ }& j- L, k
end
3 p% ~! J7 W5 s
6 D3 Y- o) M3 p$ d3 n! ito do-trust
W6 m* h' @4 {; v% ` g2 Fset trust-ok False% B- N6 D$ m8 J6 j
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let max-trade-times 0
+ J- K" ]0 Q9 I- k9 [foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ R& i: f1 `% O3 r7 ulet max-trade-money 0
" \: I( Y6 ^/ ]4 ~1 t; {1 pforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]: K& U, F) c/ t; Y8 z$ [
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
/ @/ a. y' R% {' `0 _8 C" }2 v: E$ V) Y5 Q8 Y2 m
+ H0 @# F0 y- o1 d
get-global-proportion
! { ?7 r* E( Vlet trust-value7 j, u9 J6 U I x: [1 Y
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), g* ~1 T) f6 L# F0 U$ c7 A
if(trust-value > trade-trust-value)
( J# R( B) q8 [6 A6 _[set trust-ok true]
0 S9 o% s) U% c" S4 vend7 j3 r( o# [5 H# A
8 T* s* X, o" A
to get-global-proportion
7 A @7 c) \* F. d1 o4 \* Cifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)' S& v+ G1 p: w/ `; e
[set global-proportion 0]* |. C: _3 v8 n4 F( A# j
[let i 0
2 A/ ` y3 D, q, `+ i$ qlet sum-money 0' M: y1 m: a3 _% t: [2 R3 z" ~2 ?) w2 j
while[ i < people]9 C2 Y7 w% Z o: V4 H; x/ x
[
+ I7 c }% ^- h1 E& c& ^if( length (item i
0 u0 n3 {/ m- j( ?4 l[trade-record-all] of customer) > 3 )
0 {4 G- i+ G& ^, K1 v* i3 W[
4 k, I3 O7 p# _$ K+ k; tset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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j6 m1 _3 j* b]9 `7 d/ W5 D v- g, @% H
let j 0( S, ^1 |9 {; T; \7 q
let note 0
/ \6 z0 z) f0 X1 h! x" iwhile[ j < people]
* m ^, X8 ]7 J4 l[0 s# `$ s X% e' H
if( length (item i) V. r) o. d5 D9 L& X5 U! W
[trade-record-all] of customer) > 3 ), M% p0 F$ i0 a3 O! J
[# Z$ ~5 D1 z$ G2 C% _
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)4 o6 \7 d! L! n" U- B
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]- ~7 x. i* ^6 T( \# S' F' V/ l7 c
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
+ Y' X o7 G) b- V+ y+ L]
4 a; |4 V0 e8 J- Q9 c( i/ _3 }6 x]2 h# ?6 O/ a: C' C7 g$ E% j0 W
set global-proportion note) V: w. S }- z* z) z8 |
]5 u1 t q |' h+ X
end
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to do-trade
7 R" B7 }; ~* q;;这个过程实际上是给双方作出评价的过程
: |5 l# s5 S: cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价& S) h+ V @1 S6 f, x& o' v+ k
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
8 Y+ H6 A' s6 Dset trade-record-current lput(timer) trade-record-current
. {3 o7 R5 e) H! q4 N2 }, j1 _' z;;评价时间7 `- ~7 [7 m* r( w' X: l! z
ask myself [' [# F! T$ f, ^/ L8 g3 a3 T2 f% L
update-local-reputation
, h! M3 w! \+ Z6 D- Rset trade-record-current lput([local-reputation] of myself) trade-record-current
* V& j' u8 q& \2 `]2 j* B0 i7 B% u
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself. I# q$ _: F x
;;将此次交易的记录加入到trade-record-one中- ~$ h/ R# N0 ^( r" t4 Y
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
6 @( h' y3 V2 j7 R1 P# C/ b* o( elet note (item 2 trade-record-current )
5 x, i1 s7 j% W8 ]7 D* iset trade-record-current
% z7 P* W5 D! O$ T- f0 B(replace-item 2 trade-record-current (item 3 trade-record-current))
) a O8 b+ P# ?: A0 v0 a: B4 Iset trade-record-current
; ?4 g0 d @ v+ {9 s(replace-item 3 trade-record-current note)
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% E, ^% M+ P V ?, E% m
ask customer [1 [: B+ T P9 z5 Z
update-local-reputation* n9 c4 J. x1 g5 Q; P- N# O q5 V
set trade-record-current
8 H ]8 x* {& ~. Y$ ~7 e(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ; G# S" q _) I7 j# L4 ?- C
]' R9 K# [; b$ H, c
. | {5 p- U; t2 L5 ?7 c, M! V- c
, ~5 d2 R5 F( n! `$ d+ E; Zset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer, \! q" O% R& O# U
' H/ x4 C% V' l* [set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
/ H1 Z1 W! l3 i" v% O/ g! k;;将此次交易的记录加入到customer的trade-record-all中
. }) O8 R5 }/ @/ P' wend
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to update-local-reputation$ t; [7 m7 G- ?9 K& X$ N
set [trade-record-one-len] of myself length [trade-record-one] of myself" \4 N8 `. Y) K6 s7 T( L/ G2 M
! V/ j4 u, ?5 x5 M/ {$ H
5 W/ t y1 k' a3 V7 S' v/ N
;;if [trade-record-one-len] of myself > 3
+ C/ O$ i; C( v$ tupdate-neighbor-total7 T" e' ~4 T$ l9 m/ \5 q8 K
;;更新邻居节点的数目,在此进行; P7 j7 o7 ^. U l& Z
let i 3
0 R1 K4 C/ g+ q" A4 rlet sum-time 0) L+ F. E# E" ~6 x7 _
while[i < [trade-record-one-len] of myself]
* [- O r$ D, \; ^[' G& ^( r/ b. v+ G, |
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
3 R y# n& @ Z/ [# Bset i
. y, A/ @0 S" E, |( i + 1)
- i X# N# U. s4 E& a]1 h" F0 a' t( ^' A% z1 A
let j 3
3 O! g* C" `6 A& m7 U" [( ?& klet sum-money 0
/ Q3 ~) r; K$ ]) l6 D4 B9 K7 H3 Hwhile[j < [trade-record-one-len] of myself]
- x( n9 n" h+ j3 k' r' ?[
( Q7 N, y9 d5 a$ N( P6 Q3 Eset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)6 i) M4 |2 J! O& V6 \$ g8 e" K2 f
set j
; j& p) A1 E; C* W6 S1 ^( j + 1)
L4 {' q2 W; i: c]
5 E9 C: e) f) h. G dlet k 3
' H3 E# {4 W# n+ ~: K) ]8 S" Ylet power 0; J& h) D( ~9 Y8 w4 X
let local 00 R% v; k# F1 {: s
while [k <[trade-record-one-len] of myself]
+ O1 ?4 L6 M* e& C[
: y2 @, d: R. e8 l- Bset 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* P& }* T U$ } ^! N, r3 l
set k (k + 1)4 {' |2 e; b. e; e+ P8 V
]7 f' N5 s5 T/ i$ v& [2 D
set [local-reputation] of myself (local) ?! p4 T( Q& u6 Z( x. M
end: k) e+ g. \2 u7 K9 }
4 _, D5 v1 A9 J( k! x
to update-neighbor-total9 T6 m: X$ B# \% N1 r: [
$ K; B! ~5 Z9 k& mif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ n% T4 {/ }7 a" C; [
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end: v& j4 \( k, Q! h1 L
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to update-credibility-ijl 0 j8 U7 [+ Y6 ` |
( e$ \$ {1 W ^
;;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。
5 l5 I* C2 z, I Z' P5 ?% `let l 0
0 z+ _7 Y- l3 d& ]while[ l < people ]0 _, A% @2 ~& D6 C& C
;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 t) r, R4 o3 F2 {) Vif (trade-record-one-j-l-len > 3)
: g: X& ]- w+ A/ L[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
4 \% e! U: U G/ h7 f$ |) Ulet i 3
- U* B9 z, j0 e4 Q2 R; o& n1 P1 vlet sum-time 0
; ~0 i" }& J' `. Cwhile[i < trade-record-one-len]
6 r* Z& G8 i$ S1 {* F) U[
2 r( Z, f" ]/ |; }/ lset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
3 L$ R: d+ N; \$ }set i7 t: M( r0 x3 l* C6 e
( i + 1)
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let credibility-i-j-l 0+ A( L3 I: M* N% ~. ?
;;i评价(j对jl的评价)
- e5 E1 {) H- x4 ~7 Z- blet j 30 P7 o! {9 `: C. y8 v( x; K: ^0 x
let k 4
9 X5 W6 G& x3 |while[j < trade-record-one-len]
4 f) I( U9 V# V6 C; O[
n: K+ R7 B) U; o, Xwhile [((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7 I* x% n$ k) R1 f/ A
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)
! M9 T8 x; z9 Wset j. \! R# f2 y1 E" ]! }# u$ L2 Z) X0 G7 I
( j + 1)# s* [4 v3 o; j) K
]! v% F' V8 ^& y; R1 X, Z
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 ))
7 D4 ?0 G; {$ h8 ]8 E+ i. C* V: Z* y( T# h0 `0 v
- Y& _$ ?4 _; m$ N+ P% M( ~# alet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
6 w- P9 _& T' a- B2 Z;;及时更新i对l的评价质量的评价
! d: r: l N5 t# |: D1 ]! C( }set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]) |2 ~* w. N# c3 o
set l (l + 1)! L: |# |0 F6 N* e' `8 ~6 i
]/ b/ D' g5 L/ U: n
end
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to update-credibility-list7 O- F6 A& Z" r& e/ t; D
let i 09 G2 k6 F5 _7 {8 s
while[i < people]
$ T$ I9 g7 p( f" P6 [6 W[
7 S' y1 ~: m3 R, _. vlet j 0
! c' b) j5 \- z$ y, G# t/ Ulet note 0
, _+ a: D; V4 k( I3 Nlet k 0
0 ~+ C+ E% h; x- r4 d;;计作出过评价的邻居节点的数目- x L* b5 a1 P
while[j < people]
% M. D" K/ E! {- {[
" P: N. T$ U+ ^; uif (item j( [credibility] of turtle (i + 1)) != -1)$ U5 Q' E- B" K/ P/ N$ S: X
;;判断是否给本turtle的评价质量做出过评价的节点
1 n& ^ V+ _7 c' h* u[set note (note + item j ([credibility]of turtle (i + 1)))
6 D+ m* |, B# M/ p;;*(exp (-(people - 2)))/(people - 2))]& f$ _9 m$ W5 s U! d
set k (k + 1)* ]1 w* f H$ o) |4 R/ k
]; ^3 t9 C3 X9 Q( b) h" [( H% v1 P
set j (j + 1)( c% l, Y8 [( O' l
]# E" |. x7 P# }" k7 d9 m0 ^* N
set note (note *(exp (- (1 / k)))/ k)+ g4 I, V" x: T/ i
set credibility-list (replace-item i credibility-list note)
1 I2 [" ^1 P" b( \" i! |. L; Yset i (i + 1)) @6 y1 @2 C" W: t* ~
]
! i9 O) z7 j M6 t, n ^end; m( n7 h' S' `& O* }
: }0 l; t* Z! V% C# x
to update-global-reputation-list
5 E6 e; [9 C* |" glet j 06 C) m9 h% h9 i4 J m1 k n+ v9 e
while[j < people]
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let new 0# h% c3 t4 d% _0 V7 x
;;暂存新的一个全局声誉
! Z, X* |4 z% i; hlet i 0
1 F0 ]* N/ q9 P8 Hlet sum-money 0
+ n3 o# v8 _( h% Hlet credibility-money 09 P! O2 n1 j; ^) [' O, z- U6 H
while [i < people]
2 u1 E9 W/ V5 d/ F. H" {[4 z9 U0 z7 Z: j6 M3 j' z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
+ _' \+ [3 F! m, z& {set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
% ^: O3 a( l- t; U& eset i (i + 1)- f+ V9 U0 T# u2 g2 R
]
" f" p6 j r6 i& ]1 tlet k 0
1 z( F( S8 [; Ulet new1 0
# I& y- ?: h. m. Q6 K) Ywhile [k < people]: K# h3 e1 f3 n7 {$ t) w6 ?% X* z5 O
[
2 y4 E( D8 g8 W% j8 \( Wset 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)
/ l, M1 W1 d9 d6 n, `6 \set k (k + 1)( h) d, f9 ^# E3 _" N8 [) h$ j
]
) O7 s$ g: Q( w4 A9 L$ ~2 L; Eset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
6 T6 i% l' b2 N& Yset global-reputation-list (replace-item j global-reputation-list new). g' |* w7 V/ z/ h
set j (j + 1); b+ ?) d2 a8 }, m% d
]
j" A# e" ~8 U9 E3 I2 Send2 i1 F. l) V, Y6 s. A) I
: Z4 K4 I9 S& Z* S6 K$ R
7 l6 z( b+ D5 t, M# q1 M
1 l9 _# v& _/ Q2 ?" @to get-color) M d! M6 s" O
1 w) X! Z R1 e) l( o( W
set color blue
, `6 S& H! K! K7 J9 u* @0 O) [end$ q7 i. ^2 M; @. z* @
! X0 {6 N0 T: |+ H: _5 X
to poll-class8 U# C! \/ c: S! [7 d) j
end6 X# @6 X( ]: W
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to setup-plot1
T, U2 E6 M- G$ g0 E. s, e
/ r4 Q: D% Q7 L; Uset-current-plot "Trends-of-Local-reputation"
8 u/ I, {. x# Z% u+ r5 V3 t- l, u7 F
set-plot-x-range 0 xmax
N4 ?+ U- ^- q5 q( l* c' @ W9 B8 I" ~2 `9 R7 n
set-plot-y-range 0.0 ymax
: g+ b& m: K7 Oend' A& {7 {! D* `, @* w' @# f1 x7 F
6 {8 W6 \+ h# w' eto setup-plot2. q& G; A3 T" f1 i
$ E$ R0 N4 V' b4 U# Zset-current-plot "Trends-of-global-reputation": S+ Z9 ]' z. q) |4 l! r: k' b* T) R
$ X- O( [, h# a" L, aset-plot-x-range 0 xmax6 C$ T9 m4 J! ?/ L8 W
, t; b7 I% j* s1 E+ ~+ Aset-plot-y-range 0.0 ymax6 R" V. d. U6 t) q& |: i
end( L+ H4 A, C$ j" Y$ U; C
* J! Y7 ^! x, Pto setup-plot3
, Q/ t$ l6 I) J+ n* B7 j6 r2 S* I1 a7 ]5 ]# ?7 @8 ^
set-current-plot "Trends-of-credibility"
3 K" ]# H' q( ~8 G2 Z, r3 `5 `2 r$ l, G1 b
set-plot-x-range 0 xmax+ h! J3 T3 v# t: x" S, R/ z t
* r% t' G9 c( ~$ J- k9 \! F6 cset-plot-y-range 0.0 ymax
- I0 C- X p" Q0 Oend- U- }0 G: q6 w
1 C/ N* M: m- zto do-plots4 y% E" j8 L6 o% D% F
set-current-plot "Trends-of-Local-reputation"
9 p* W1 ?' V( |# J' X) F- V) iset-current-plot-pen "Honest service"
; V' N5 b& i0 _9 r4 [end+ P" f$ x. C! K- R5 p1 }
[& p: w) i5 P
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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