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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" T2 j2 |5 \1 p6 x" r
globals[
5 S! k3 l) i9 |* J0 pxmax
6 h% N; l4 r2 v: q- [! Xymax
" w3 d/ U k, O% c R1 }& Kglobal-reputation-list
9 \! E5 \' f$ D* p8 U4 X! M% b* i/ `7 N' l5 K9 f3 L
;;每一个turtle的全局声誉都存在此LIST中2 D& L. B3 E8 b* q- O
credibility-list
: T6 l/ N& ` q;;每一个turtle的评价可信度 R1 x8 @9 \; I, |" p; H
honest-service) w! a/ z6 Z0 }4 v% U% j% c5 b
unhonest-service
* D& J* i9 t/ \% N$ _/ ^oscillation. P+ j& D& O0 ~0 g
rand-dynamic
0 g7 {. [- \) ]5 x/ c1 G. Q]
" a: m3 e e/ b9 X8 f7 k7 t
6 b/ i* N$ _4 V* _- @turtles-own[
( m+ s$ I. R! g! q# ntrade-record-all
: Y! G! e: L: s" `4 O3 n;;a list of lists,由trade-record-one组成
9 Z Q9 f$ O% i3 Dtrade-record-one* G @" E/ B/ v2 `/ S' J: 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
0 Z2 h" e6 ?' I2 C+ K* X/ c3 C3 m4 i3 u! }
;;[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]]0 Z' {6 V/ V1 q
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]! D, Q5 V% u, P- q( S; s8 u @! p
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list7 H' K, A8 O& T6 G
neighbor-total0 ~9 K0 f. [; i- w" K5 r
;;记录该turtle的邻居节点的数目+ x& S0 g& }; k2 M8 i: g3 L
trade-time- N- O9 c- U. M+ y, [
;;当前发生交易的turtle的交易时间
4 Y: t5 D5 @" @appraise-give1 t2 O# Y5 q& E# Y( j. H/ B& x
;;当前发生交易时给出的评价: g3 p: e. H) z- Q
appraise-receive
9 Z C- u8 U. L2 W0 n9 g;;当前发生交易时收到的评价
1 X$ q8 W+ u @appraise-time$ L7 b! S V7 H1 h
;;当前发生交易时的评价时间 ~7 u/ i5 r2 ^9 W
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
8 D+ G' x/ v- w @6 @trade-times-total7 t, D( R2 l/ i+ {2 M3 v" }4 u& P
;;与当前turtle的交易总次数
& g" R9 `( t2 x# V9 }& s( Dtrade-money-total
+ b) c! ?4 V; K;;与当前turtle的交易总金额- [- P* M3 }( \7 ^& d7 A1 I/ r3 u
local-reputation
0 z9 N1 z% F, q8 j- A! o+ v: ^: hglobal-reputation) P4 j5 M! \% R$ Z7 q
credibility+ d3 x7 W* ]0 {) y3 x% q- n
;;评价可信度,每次交易后都需要更新
& S: t- i( h9 ?1 H( E* J! u4 Y- _5 ^credibility-all
& x+ g) M: v8 z. G* K) j. K;;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
7 \- ^8 F. d& V# ?1 R! g, t) T6 P% B& b6 y* N! d. F
;;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' h5 }; I% b* C4 r5 [: x
credibility-one' h; W5 j- C; [! I. \# S
;;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
, @; O; g3 _* Sglobal-proportion; W/ D. F' P3 }7 m* r I- ?
customer# }( @+ [, N8 H) D, T
customer-no! {5 b8 g( {- N( ]8 w& {
trust-ok3 e- ?5 j) d0 T/ l: L3 ]: ?
trade-record-one-len;;trade-record-one的长度 c& a2 G; B3 p. ^
]
9 t; F: I- G/ g5 ~+ R! s. {, W- O' `) L* }
;;setup procedure
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to setup
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- R$ T q5 p4 \. e& D% e2 Vca
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0 s6 @( C+ L/ W$ y% xinitialize-settings
7 [4 @- {8 C6 o& a8 ]: M
4 j# Z( B7 ~6 P ?9 Z( s1 B% icrt people [setup-turtles]
2 a# `, Z' _8 [) K# b& k h8 y9 S' }- a
reset-timer u6 Z6 p5 N% o
9 s' H y0 ?- z0 Jpoll-class
1 `) R# \; |1 G0 p3 b7 n8 S2 E
3 J. v- W2 |+ w+ rsetup-plots
% C% \! `* d: ?
6 X7 ?! A& i, D6 kdo-plots8 N8 A* G e2 F% _( W$ u1 O" b! h6 O
end
+ R, y/ A, [; S8 {; n+ z/ \% j1 o+ Q# t& M7 _) q
to initialize-settings: `* X" M0 Q F; A) u& J
% V5 E$ T. S8 K) Yset global-reputation-list []
5 W* W6 P5 X% G d% I& y- H% u' |
. T; w' A }. v o4 U( Z9 x& g" ?set credibility-list n-values people [0.5]
8 u3 w$ u$ \; f( c3 R- S4 s
: {) k: Z& N2 U3 t; qset honest-service 0, g5 `3 ^ O. q, f2 v* q0 c2 n$ ~
, ?/ {) K) J! y' R5 P+ P
set unhonest-service 0
. j+ c0 O0 q+ l. q
, l! f9 |0 |% aset oscillation 0
7 u; s0 j# k# X' x9 i, U3 T
9 Y" f2 ]5 D! _: b+ Kset rand-dynamic 0( X+ T* ?* N" n/ |0 G0 k4 N, ]2 d
end
8 R! g$ S Y$ [7 X k, @- d% t; v
to setup-turtles ! [) O/ p: K2 d, z# l
set shape "person"5 X! g, f# P, R7 l, B- e
setxy random-xcor random-ycor# w8 s8 R( W, o* n G# O3 s# ]
set trade-record-one []
% \, K- h: |: s9 |( ~) p& b- w" k# d- O
set trade-record-all n-values people [(list (? + 1) 0 0)] 1 c+ A, l' ~& a; v
% B8 P. Y9 [7 _8 l( @set trade-record-current []
" W, |! [6 l0 {6 z, r1 ?7 ~set credibility-receive []
$ ^( {' B' C7 _% j0 D1 j) Dset local-reputation 0.5
/ g2 K' f: o( E1 _set neighbor-total 0
8 M" S( A9 s* K; E# Xset trade-times-total 0
2 H7 E$ H" ?, n+ b2 Vset trade-money-total 0
9 O1 H& E# n# U8 e" k8 u% M o$ Aset customer nobody
1 A" f* q7 z6 d. P# @; I; T' @set credibility-all n-values people [creat-credibility]( y* l) s! J* i4 A4 B
set credibility n-values people [-1]
& G* T; d9 O% pget-color
, E5 L, b8 X$ P& c' `7 X% M4 }9 F: n9 ]6 @0 j
end
% e" D3 V' I4 v7 H: d9 R
8 L( e, X: V- _2 o/ ~' J6 @) R# Mto-report creat-credibility0 `1 }8 j* Y: _7 @ T- D
report n-values people [0.5]
7 b/ L. q7 F% oend
7 N; y; l9 h) D; M7 x
+ A, E, C! \* R# [- Cto setup-plots& X& k# {: M% Y- h* G7 |$ k
7 c3 z( ], }# \' J) |" p" G6 K/ q
set xmax 30
4 @ w5 g- y6 Z i6 I3 H3 V6 }3 K/ G4 x; F
set ymax 1.0( X+ M b( \/ N5 @
; D. q/ h) \$ r Z5 m9 cclear-all-plots, J l2 Y$ G9 }% q- z6 G
: d# c* w# C6 M6 `" T
setup-plot1
4 G/ M0 o2 p$ W: Y
9 p- o; X* b7 T0 jsetup-plot28 ~/ {( A0 w: t$ T0 I$ ^& j7 w
* ~/ v9 M6 G) a3 X( M6 j! Fsetup-plot3
! l# d: }1 R0 c! b- W/ u- y) Wend1 U4 V! G x Q8 R# @+ B6 {
- F" m* |: B8 [ p6 K;;run time procedures# s! J$ a' b! I& \
5 `4 \$ F+ X& I: Q% vto go! h0 Q# n9 E$ v
* d: y1 F, Q) Q- K; g1 Kask turtles [do-business]
- \- @2 t7 D8 z9 e. I5 d# Yend
: k/ k+ R9 `0 a2 E d! Z) A1 }' y
! T+ T' M- c; @+ X2 ]to do-business
3 _8 o- N* l, W# e% P7 [! ^% v6 s# Z f
6 T3 s. X% x0 L$ J/ C% w# t0 Q: Zrt random 360
' K2 ^+ p u& F- P+ U" T. v- X
; K$ J$ A& y" k+ Nfd 10 {, E2 Q: o9 D0 F5 M) a
* P8 O' z4 H3 Q# L5 y6 R% N+ ?# V
ifelse(other turtles-here != nobody)[
' @: e: t& q- L: _9 A& A/ l/ y& W+ n% }) o' d5 h- Y7 u
set customer one-of other turtles-here
* M3 L* a, W& ]9 V# {
& f2 J) X( p* `8 a* W;; set [customer] of customer myself
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2 C4 A) Y x3 s9 Pset [trade-record-one] of self item (([who] of customer) - 1)* R" w( P: B) L, U/ m9 s! M' C
[trade-record-all]of self
1 d* A g! O6 \2 e;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
* {8 ~* N+ K% d' J) c+ ]
- b8 B/ E4 L4 X8 v7 Q1 C( v4 T, Eset [trade-record-one] of customer item (([who] of self) - 1)3 @3 n& c7 i- p: ^; u. n
[trade-record-all]of customer
9 t! J. E5 y& n; N3 e3 T' {/ K* |3 \2 C
set [trade-record-one-len] of self length [trade-record-one] of self
+ S) W5 ?8 o9 `2 E+ w. n3 Q
9 b2 D u O+ W( @3 y( Oset trade-record-current( list (timer) (random money-upper-limit))
* M1 A( k: G& h- Z5 v) ]5 ]7 G* H4 J. D. i! H7 x# }
ask self [do-trust]3 w0 v, T4 }& W! w7 e5 ^' f+ l
;;先求i对j的信任度 k- u! B3 J' N: m3 j8 ^( a
0 Y* ^+ n3 J4 Z
if ([trust-ok] of self)' v$ u( Z# M7 }0 J, ^
;;根据i对j的信任度来决定是否与j进行交易[+ u, q$ G* H8 B$ g
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
7 | z5 K4 L5 J$ V# J$ u+ t6 o# Y' b# f' o" G4 _( B" }2 P$ d% P
[
- L2 r/ U& O5 F0 z/ J3 u, `4 |/ q
' R+ Z5 o1 C0 ^9 b* H0 Sdo-trade
& \ O# c% I+ j! O- ?: t" S" ]9 o6 B) [; @
update-credibility-ijl
3 s4 u, \! F. U2 o2 }1 l5 m- q8 b# ~2 o. v }
update-credibility-list
: G$ V% g) r& t& |4 E% u! V4 I/ E
& E2 }# ~: Q2 f) e1 V- L2 D& J" O4 w6 L! Y! w" p, c
update-global-reputation-list
! k" H( Q5 a5 e* k: j3 Y: }# E. S6 k) @3 t. B0 z3 Q2 Q6 Q6 e; K
poll-class; j' K3 q7 M* Q- L$ D; @
/ K$ v' Y$ D) f( Bget-color" `6 q2 x; x" b1 w: x) [( u5 Q+ d
. G- G7 ], U! x2 g& t& N]]' D( F* q/ j4 I- S, L
5 N3 V9 W2 w- \; l. n
;;如果所得的信任度满足条件,则进行交易
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[
3 }5 Q) M; y# O8 u* \* Z- h% z; K C! m7 e6 b
rt random 3608 [* U$ a# G% o9 w# n( Q6 ]* l
5 x* n- a9 b: H2 kfd 1
5 T9 o7 Y y8 C% r8 D# o1 L5 p) I) Y
o! S! h" x7 D7 j]
& u2 h% e L& T% u8 B4 t; N1 C+ j- A) E( s
end1 _. _+ j6 u" J3 f! [" V
) \( g/ B2 l$ ^0 F
to do-trust
! W5 @ K! Y! n- b: I$ qset trust-ok False
" x: [+ w; O% v
( L+ K1 s3 ]* i: i: T' A
* l6 M7 \; G1 |4 Glet max-trade-times 0
/ u0 ~: v8 X% w" J5 eforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
( A/ Z: V! N' z1 \# [+ S: clet max-trade-money 0 b" T2 I+ G9 ~/ S8 C
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
6 o9 S" L( Q3 e. k3 l [0 `7 Nlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
" y( i# @, P9 l3 C6 ?! a9 U6 {4 v$ L, \; x! d* ]7 }
+ g: X8 {1 N7 k+ ^, Bget-global-proportion0 \0 T" b9 w3 O3 F
let trust-value0 M/ ], a4 u. A- A6 P
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), F4 R. C: s1 m
if(trust-value > trade-trust-value)6 p# `# h3 D6 ^+ r
[set trust-ok true]6 ]$ `% W, N' w. f
end
+ K7 W% M6 L& R7 ?5 n7 G
5 J/ E6 y. i5 ^: @! ?7 L |to get-global-proportion
8 s7 F) K) g+ pifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). m* P! `# o! e1 m1 u5 w/ [1 ]# f
[set global-proportion 0]. `3 G z; u* L% p- }1 U
[let i 0, @9 P+ w$ ]2 d2 ^$ r
let sum-money 0, _! s( N! Q/ h% T. L( g$ K) z, z/ T
while[ i < people]$ u+ C+ d& i X( ^; C. x' o
[7 L0 K* V# s" |
if( length (item i
& |& u( Z" }! E6 e& O! ]4 G[trade-record-all] of customer) > 3 )% i$ @ E; a5 q0 T i2 k+ I L
[
$ J q8 D' S$ T4 I- l bset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
U& `: {% o, v]7 }5 r; W8 m) K5 g- _
]
2 E: K: s; o' O1 slet j 0
' g- v4 n0 @ H( z3 \+ @% {let note 0
4 U, R8 m, k: W$ ^6 _while[ j < people]( h/ [' O, t* _- O. Q
[
8 l2 m2 R# }* Y$ u+ F" wif( length (item i0 |9 B- [# E% n6 L' A8 A
[trade-record-all] of customer) > 3 )
; X5 N; c3 ?! {* W2 u+ e8 K6 U[
/ Y7 _- L C8 T! u: V0 ~, Rifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
, N( W4 }4 @3 i% M7 R6 Z; b[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( \+ v3 l, ?5 x/ X5 n$ Z; h* D[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' J Z8 I& p# m }0 F]
, p0 p% X: P% o1 W]
* w8 M, ]( v2 D3 s# }9 Wset global-proportion note2 S8 L8 Y" I! h) A# z' h! l
]
8 ^) E! ~+ L0 [end
. c" I- h; _4 }0 P0 h/ i
# F& F1 J) G9 X9 t& Fto do-trade
2 y& f' j0 ~& X* n. r;;这个过程实际上是给双方作出评价的过程- Z" _! h6 W( U
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) `- J' v) q; @4 W. y3 {- yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价6 Z r' {4 q; t
set trade-record-current lput(timer) trade-record-current7 O$ w4 k* D7 v3 ~
;;评价时间
. v* i. f( M( G+ ^- t' n3 q" Oask myself [! X0 @4 C9 h; r* D# x- J
update-local-reputation# a6 C1 X* O3 G) k
set trade-record-current lput([local-reputation] of myself) trade-record-current5 C: H$ C6 |3 I# ?' X: v8 x+ _
]$ e" N- D" g: E
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself, `* k' L' o* {3 N2 y) h3 X6 B
;;将此次交易的记录加入到trade-record-one中
7 u" M5 p; z b' X. ~set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)5 _$ p2 }% X$ ~9 B8 z7 P
let note (item 2 trade-record-current )+ ?+ V/ _ P8 a0 G" A# ^1 C+ q3 A
set trade-record-current
2 p, i- q6 L& v* P. r( F' B(replace-item 2 trade-record-current (item 3 trade-record-current))
) t3 y! D# d2 N& d7 {( nset trade-record-current- F: s% |! ]; u* [
(replace-item 3 trade-record-current note)
4 Z' `5 C9 F$ z# k s+ g
1 j2 G Y+ ~9 l X
1 M* V- i$ _6 X; Y" i" ]ask customer [* Y9 O2 J# Z& X( a6 p
update-local-reputation: d( B1 m5 G* G. i4 ]4 V& L
set trade-record-current' s0 L- M2 ?6 u& r4 i* d4 J
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 6 x. r5 I* c" @# u- C5 x6 W. E, q
]
% H3 o( i( x0 m9 Q! x
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
\! D4 X) r8 s! X$ }
/ N9 s6 i L j1 Lset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)). M( u( l6 ~; | q
;;将此次交易的记录加入到customer的trade-record-all中
6 k" F5 G) g- ^0 |4 |3 H1 rend
- t6 ]" h- x( C6 f& a+ A$ C* q1 c# `) F. p5 O" q7 x- z5 A' }
to update-local-reputation6 \! w2 }: t# p% v. x7 f
set [trade-record-one-len] of myself length [trade-record-one] of myself
6 J+ R/ k- j: n
" z) b7 H7 ?# t ?* }" P" r
6 O+ K3 l6 J- [4 s3 Q) P;;if [trade-record-one-len] of myself > 3 6 l. ^" x& E# A: Y. S$ H( j
update-neighbor-total' _# l+ w8 w5 @. l4 H& T, y
;;更新邻居节点的数目,在此进行' p1 R/ f: Y, k1 d4 L; v
let i 3
( g+ v, M6 |3 J, d: ?* Vlet sum-time 0
0 o# L5 [: C0 W% b0 o- n. fwhile[i < [trade-record-one-len] of myself]
2 [# v( H( E5 U: b6 q& F( P[& x# h( @, z$ `$ a
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' x% r3 T9 h- L
set i- A5 z/ @; B/ F
( i + 1)
7 R! Y# P* e/ b0 U7 j]
; z; I* @+ C# p6 f( _+ P# ^let j 3
+ i' o( S( C1 v0 U& \# tlet sum-money 02 I& |+ t; b/ @5 L
while[j < [trade-record-one-len] of myself]
T2 R, V c; T; N* M& K/ V[) {" ]2 }% a! K, f7 v4 q4 w0 l
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)
^9 n9 Z F! D+ A+ T: A6 rset j
2 K* I) f1 d8 ?- j( j + 1)
7 r- E& r( I# Y' f]
. D; F4 S3 |% y; xlet k 35 b r2 v+ B8 J8 D; m$ l: {
let power 0
( B; V: f4 {. y7 Llet local 0
/ H! G" _4 w1 Y2 ]while [k <[trade-record-one-len] of myself]/ D2 @0 G6 g" r0 n/ ?' ?
[" N2 g" k0 Q" C- ?, F1 V
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)
* z# E+ g5 v7 P" Bset k (k + 1)6 \# Q O. o3 f. t) m7 F: L
], _. d9 ~: r' H1 i
set [local-reputation] of myself (local)( r/ _, ^- G: T! [
end
$ X6 F! D" k; Z c e- k y8 E# F3 o! m0 U% R. ~) ?
to update-neighbor-total+ h0 \2 ^( F% c# h. L
8 f6 a5 ^% D' X3 z6 e; g" g
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]9 c( m8 ]) O( b9 P% t, c. F
2 U: h, [: t4 U
6 M5 _. H: o% i1 S& k( I4 Y' N: Nend
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to update-credibility-ijl * h @& W: e! u! N6 i
( ^8 N- y9 V+ S;;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。 p% N! f( D2 Y3 l: `- i
let l 0
5 Y3 x. ^# B8 [while[ l < people ]
5 S- Z9 @1 [5 U' K s5 ~;;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
+ ~. D) h, w1 f+ v* X" d[. K* ~# v: a: v2 e7 ?' y
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
# L/ e9 C! y/ T" g- R1 q @if (trade-record-one-j-l-len > 3)
. i' G& H3 p `5 K[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 W1 T5 R7 E8 ]
let i 3
# [" h0 o4 G: {let sum-time 05 R4 y+ y% q9 s! h% [, k
while[i < trade-record-one-len]5 {. c- ~, c) K: J U
[
( x! D e. N+ g; jset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )- F9 I$ \2 a ]7 w9 x: U
set i8 u8 Q8 x$ @" f3 s, F* Q$ T9 b, m
( i + 1)
! W! B' N0 @5 N$ S]
: K+ B2 e I A+ P# Z# Wlet credibility-i-j-l 0
! B: f1 ^; U' ?- T;;i评价(j对jl的评价)
1 t( Q, ?, E5 P( f/ Klet j 3
2 B6 b7 ]: M% C. Zlet k 4
! J; @/ q4 u' [' l, [while[j < trade-record-one-len]
+ c. \* a/ V) r7 Y$ n+ u8 L[
. i, @1 n8 ~6 }4 fwhile [((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+ A {& p; ]* Q4 U% _
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)
b" T$ L9 C2 c! h$ \$ b( E, Oset j, u% w1 i9 p5 S$ y8 T8 B
( j + 1)5 a, o, S2 |. _7 ~, f/ e
]
" W: ^: q2 A# O7 sset [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 ))
b3 j$ H- T2 N/ Y7 ^' B
+ p _) q1 ^0 s6 K3 }9 R. F' t
; u8 N+ S2 E3 M; e* Wlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); ]& t5 n1 @- c$ B t
;;及时更新i对l的评价质量的评价
* }& G# r/ C* k/ u1 pset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]4 H9 F; E5 t5 d" d7 ] A8 \
set l (l + 1)6 k, m# y5 D$ f* i
]# r, n. B/ k7 H
end
, ?( Z, H x3 L: t l l
7 T4 a- z6 U4 U% S, J j) v# ?to update-credibility-list
$ V# g) B! U' H! Rlet i 0
6 V& Z) j1 E; T' \( A6 a+ O; @( Cwhile[i < people]
' y% F) R/ F3 Q8 Y' u N2 g3 F4 n: G[
5 {( ]! F; J% b6 k3 P: a; E& n0 Elet j 02 m& \! ~, R9 G3 k. W! X/ X
let note 0
( r' Q2 d" U8 f j0 Z* B/ Q$ slet k 0
' W# Z/ { Q: c5 w;;计作出过评价的邻居节点的数目; j( D, x/ o5 |/ v0 }
while[j < people]4 B$ Y, U* K# g- A
[
( F* Z1 ^2 E# X, pif (item j( [credibility] of turtle (i + 1)) != -1) j) m3 F9 Q7 x: W
;;判断是否给本turtle的评价质量做出过评价的节点
f5 H8 \( @$ Y( N) F6 U[set note (note + item j ([credibility]of turtle (i + 1)))
9 b$ ]5 o& g. h2 q" A% s* W;;*(exp (-(people - 2)))/(people - 2))]( J" v& i, f. c
set k (k + 1)
. d1 |3 D" ~, x* A: [9 M]: v9 _( @ G2 q1 ~& C! ]8 ]$ K
set j (j + 1)
. N: H6 U/ n x& p% ^& ^]
% T3 q* w: s U$ B6 mset note (note *(exp (- (1 / k)))/ k)
* T/ g2 H+ h" M2 s- Iset credibility-list (replace-item i credibility-list note)
& R. R9 K0 y$ Q: {8 Wset i (i + 1) [0 b3 @6 e# S* g: K* T8 i$ e
]
% x+ r# t0 Z/ a4 Q/ Kend
3 {5 q1 e( c, `/ p% L" [' Q3 @% g! h L7 ~7 b. U+ G2 [; o* [* y- i) c
to update-global-reputation-list1 @2 K- P' B# b3 r8 a4 a
let j 0; s! R# Y, S' h9 q
while[j < people]- C8 H& v% u" f# p: I
[
( w' N- c# a; m4 z& s& Klet new 0. O9 }: f5 m- C$ C, u
;;暂存新的一个全局声誉
) V; c% V7 l* z1 d+ Y& {let i 0
, L1 Q7 w4 v/ ~/ Ilet sum-money 05 r; }7 O/ G+ C1 w+ T, S
let credibility-money 0
$ Q% \9 `: k; H7 x( I1 {% p% Y1 C: }while [i < people]. h, p1 Z1 l0 u# S4 m2 f0 r- U! w) ]
[
+ X& ^; R. F1 Iset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
8 h* R0 E4 R R. d2 v5 J2 l% a4 Lset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
. A( R5 M( {& G, O4 N2 Bset i (i + 1), `' s$ o% |$ y6 w9 @( d
]
" _" s( k% a9 \: H r, O: c; l7 tlet k 03 s. C7 n. z3 g
let new1 00 O# w7 l' @/ N/ b8 N; W
while [k < people]
4 x2 A2 q, s o5 C/ A! _ Z[
/ j J" }' D4 ]' N+ R, Hset 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)0 d* |( E" n0 V ~1 N
set k (k + 1)2 E# t6 u' A& j1 }7 I
]' T7 }" ^+ b; O
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ; r# j5 |; ]" a$ n4 [
set global-reputation-list (replace-item j global-reputation-list new)/ f6 H4 Q; x; g0 y, L! _
set j (j + 1)
; M/ a, \6 E# ^. Q+ m]
+ x' Q( Z; I( k; x j5 F8 {end6 J! d/ j! G( n1 T# u" G0 d
l1 f- k4 P6 X
' _0 l1 V. Y5 R9 E7 B% c- _2 J5 M; B8 ?
to get-color
: N/ n9 g" z1 P
6 o; b* w* T5 _1 C: D% L& dset color blue
1 n T" ^* ^7 _) \3 d1 @end# X- A: B" \1 w- U
7 n: V l; W* }
to poll-class; p. k$ m( A4 _3 e; v5 Z
end
2 Q' l. i- t# n3 V
8 [! {4 h. F/ j2 R1 ]1 o) r$ K" \0 Nto setup-plot1$ P( o7 M3 l0 z) S# V
5 q* ]) c f3 I) iset-current-plot "Trends-of-Local-reputation"
' {! e1 l) C; X$ C7 Q
! E4 T0 }9 {: `; Q; Fset-plot-x-range 0 xmax
9 ^% S$ j% I8 o
7 Y! \. {: A& i3 B4 q. a) D2 Tset-plot-y-range 0.0 ymax( w7 a T( s! J6 V+ i5 f
end
! p+ c5 H% f. D$ d* o' d- D( z0 b, S/ r
to setup-plot2- Q7 K D; Q! ]7 r! i1 {4 P
1 u6 }( ~' S% `' ^: `: w2 Kset-current-plot "Trends-of-global-reputation". i+ F1 ?! {. {5 i" e
- c7 L) p8 q. d" I) dset-plot-x-range 0 xmax
2 h* l/ Z) y$ B, a6 u% N$ s; A% ?/ J
set-plot-y-range 0.0 ymax
+ u7 a6 T+ X0 ?0 N7 yend+ _3 v7 U; z2 h
4 n# A f& x4 x/ Y3 j& zto setup-plot3- M( v* B o+ q, @4 ^* b. T; K2 I8 T
7 j2 ~* j L n2 q
set-current-plot "Trends-of-credibility"# j0 R# ~4 e# @/ X5 G3 B- V) h
1 @* _1 n% a0 V/ y" Oset-plot-x-range 0 xmax- w9 V: E! \4 i2 c q
3 [4 ?) ?, a# h; f9 \+ p
set-plot-y-range 0.0 ymax0 B9 f7 ?4 X: Q5 e! |
end5 f/ N* @+ Q" B8 q. i- z& [
) [( l5 y* |! H! j& q. x, U
to do-plots
6 P* o" R/ l. i* l5 _' iset-current-plot "Trends-of-Local-reputation"
# K6 A" x$ ]- U: Dset-current-plot-pen "Honest service"
3 t' N6 f$ X; R8 `+ s( Y2 @end- F& V6 V/ z) N+ s
0 e3 A/ g( x. J) O) E- t[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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