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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
+ g! Y4 G( ]' v6 p1 N9 ^9 m4 Aglobals[
S* s' T' o: D( v+ ?" Dxmax
, n' d3 P7 L$ x8 i6 symax5 c0 v. j' e( n3 K5 E2 T
global-reputation-list
" R `8 L% m+ j. ]* W" ^& E+ l1 b2 G) _- Y4 e
;;每一个turtle的全局声誉都存在此LIST中$ n% o S% ?1 B, h) m
credibility-list
" { k$ C6 K/ p. h+ y$ l;;每一个turtle的评价可信度' o3 X4 V2 L0 g2 [( j# G
honest-service8 z' y5 M1 \/ U: U, L
unhonest-service+ G- M( y" ~0 k' G( w" V+ L5 t0 f t" S
oscillation
: G& X i& t1 d. P( ]rand-dynamic
% s8 ~$ z# h/ C]
7 S' q v3 q% d7 d$ H/ C" G- m& r. W9 o$ e! Z
turtles-own[
( v0 N8 u# B3 H* R/ f% Ztrade-record-all6 g' `' F c: }% |: e
;;a list of lists,由trade-record-one组成
! v. [ ^; X- g: F; x* @trade-record-one
: \- E- S2 E( B0 O& d1 H;;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 Z. Y$ q$ w9 {8 ~
. {* {. T* R1 ]& R J;;[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]]
E% { t% G) y. \) utrade-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]
7 Y! M# t" g9 j4 N6 ? ]5 g4 pcredibility-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$ ~ m) g) g3 m; h
neighbor-total- r+ ^: X! r4 }8 D' m7 c3 z; w' Y1 j
;;记录该turtle的邻居节点的数目# j7 S: v; U1 J/ P$ l9 E: b
trade-time
2 V/ F5 D, S! t7 H;;当前发生交易的turtle的交易时间
4 P. }* [( q) n; P* H5 Q5 \appraise-give- ^) V, V* W" s, m, V7 p
;;当前发生交易时给出的评价
8 ?# S7 \0 ?; Z* D7 {: M% Y; O6 Bappraise-receive
/ H0 D7 ~) l# m;;当前发生交易时收到的评价
. v3 V% r3 |* z) H* P% s( Iappraise-time9 R1 W/ D( H( ^9 ?4 C% v: N; c
;;当前发生交易时的评价时间# i5 j! e+ M+ R& q
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
8 f$ c. R* ?' {6 { mtrade-times-total( P: o8 B6 f1 n- D: D+ f* A
;;与当前turtle的交易总次数
, x/ s, g& _% e- Utrade-money-total4 B4 M! K" {4 i. f$ V e2 u
;;与当前turtle的交易总金额
) C) a8 ^+ r8 N; N3 ?3 }1 s# t6 A' @local-reputation( M' O6 ~4 o) n) M( [9 j" x
global-reputation) X) g! s" N2 M. e+ C5 ~
credibility
5 R& g) B& I9 x5 k;;评价可信度,每次交易后都需要更新5 q! t& }7 t, j) @7 k
credibility-all
4 t ]; W9 W( b( g j$ c;;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
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2 t3 w2 p5 m& w0 f. `' R;;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
5 a/ \9 Z1 k; Y, `9 A S3 Y5 H' xcredibility-one- S( K/ q6 l# o, L
;;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 F' s$ O$ H* F# Vglobal-proportion
& x9 e2 V) p0 _* |customer
" }2 C/ j K8 ~$ [; H xcustomer-no. |/ c6 P' n6 K) O( d
trust-ok: V- P/ u- B/ s; V" m6 F( K" r: D
trade-record-one-len;;trade-record-one的长度: m* ?6 l7 I& G* N/ ~# R
]
" b# v, @; w2 ~( k+ ?' J2 |! B9 f! v7 q
;;setup procedure
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( e2 c8 u5 M: {( Z" Hto setup* m1 `' h w( G3 e, `: U9 `
: V* d$ }3 G, Y+ Cca$ u. l- P6 q( b$ V- t4 d' X$ s
, {/ j. o o% S u$ yinitialize-settings" Y8 H2 d# _" s& h
: U% f* h! T) Ecrt people [setup-turtles], l2 G- h$ a6 M
8 p% Q \3 [/ h5 m0 Preset-timer( {8 z! ~4 _* M \
M, q( \9 c; ?6 C7 `poll-class
+ e% g T% M8 N
8 N- W. R# y/ o- q( Qsetup-plots
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do-plots
8 Q7 w( C! v+ Uend
4 P+ b" _, I' A
5 M* y9 ?9 g6 U; C5 eto initialize-settings
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set global-reputation-list []5 c9 `( \) ?7 T, J
5 t; m, |/ F$ P. e5 O
set credibility-list n-values people [0.5]1 T" U7 G+ o% p5 N# d
5 W+ w# x$ b3 U$ \% x
set honest-service 07 h, ?5 \6 j) d* N% N- B2 S* c
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set unhonest-service 0# }7 i- ~" }4 t
! V3 L4 Q) f# ~
set oscillation 0
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! B9 D3 G+ ^5 Z; m: wset rand-dynamic 0
+ [. G( L7 B9 e2 H: ]end
9 B: B1 n4 ~* v( t+ U' f) ?# T4 S g7 u, Z( b, ?; A
to setup-turtles
4 r! n7 O$ n( V8 S# ^+ Kset shape "person"
. b# _) H/ @+ Bsetxy random-xcor random-ycor
9 ~' z. c) u' l; Sset trade-record-one []1 w8 _* j8 p. Y
$ V6 Y$ V8 N* ~set trade-record-all n-values people [(list (? + 1) 0 0)] ' k; J8 n- K8 A" G8 h
6 i1 c( Y; J) M/ M fset trade-record-current []8 ~9 {# z$ Q$ x/ m+ U
set credibility-receive []) C& C2 C5 X2 a3 V6 x0 x
set local-reputation 0.5
, ~- ^( f4 a% kset neighbor-total 0& n7 T: n5 S; p, A, ^
set trade-times-total 0
( w- W# v9 ^1 }0 p5 Lset trade-money-total 0
; A/ m+ ^- K: h: p& ~- Yset customer nobody
0 y) r2 k9 l! Eset credibility-all n-values people [creat-credibility]
& N4 ~$ H, F/ B1 w0 fset credibility n-values people [-1]! U3 M/ c* i2 D* G9 p: [
get-color/ V& ~# P; D V4 z
) {1 Z1 b2 I' A% I0 t
end$ [7 ~$ w' u! f7 ~$ B3 j
: L( ^6 Q* ]+ y
to-report creat-credibility8 B8 W, c# s6 u( H
report n-values people [0.5]
0 Z0 t# ]! c" S* Y. }end3 r a6 B" P4 e$ A
6 x( U% Z, L9 W$ n! e6 A
to setup-plots
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9 }" L3 |2 m8 [% q: R! ?set xmax 309 ^4 X. m. }( @) h. L1 R
# v* ]$ I( u7 j
set ymax 1.06 g( k0 ]5 ^# H3 H7 ]/ [+ m
+ ]# \; ]' n/ E2 A3 m$ l* pclear-all-plots; w: t5 V6 p! M# i
4 N/ J1 q' H4 ysetup-plot1
* q, O4 F7 y8 x: ]' Q: p) y* C; x( Z2 C
setup-plot2
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setup-plot3
1 z5 z( c% [/ p6 f% y5 i7 wend
8 k5 V! x# E9 g6 C, s$ V8 T
' D6 I6 p8 d) U* A7 O;;run time procedures( }' L, X7 t: o& Q
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to go
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5 Y6 ]( i$ `' E0 }+ gask turtles [do-business]3 C }3 m. {4 H% M! q' `
end
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to do-business
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! }. u' j6 r# d* {0 [
D2 T- W7 k, W. t% t: L* art random 3604 `' h; m- ^3 w) d5 C X/ r- l
- w' ~7 `: T9 I3 p& c3 H9 [
fd 1
* o, m, P- ]1 y& ^, y: @# j" Q8 ?; \0 K4 X3 d y
ifelse(other turtles-here != nobody)[
1 z" p5 x: [1 c" _' O( F
/ v/ P# y* T( |/ Z2 }0 Tset customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)! [) f/ J8 w% W. R
[trade-record-all]of self7 E5 g: @ K- ?; ~7 M$ z8 I5 n
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self/ M$ K3 V& x$ K7 \' P' n
8 G7 L( K; h0 }9 T7 ?% N; `set [trade-record-one] of customer item (([who] of self) - 1): X6 w* a: o9 d, s- G( ]6 o
[trade-record-all]of customer9 d! ]7 H' V' p3 k$ m7 |# D6 s/ ?
/ {8 Q8 Z- ? X/ Hset [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))
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ask self [do-trust]( ~6 a- r% e; `! m" {
;;先求i对j的信任度
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if ([trust-ok] of self)
* Y" U1 {. m4 j. {: A; W5 g( {9 B;;根据i对j的信任度来决定是否与j进行交易[
3 d! \. }- p6 Sask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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3 q1 e- Q/ o* Z# Q4 ?2 Z[% j5 E! l$ y8 [5 L. T$ K# V% D! W
! Y& Z1 W4 q, B: q7 h
do-trade
" r4 [. s( Z1 g% v$ {2 C
- A7 z/ ]& ~0 J) `& _update-credibility-ijl. I7 J$ b r {* x f# F0 N
+ [; G! n" A: U9 }update-credibility-list
4 d& f- H+ S* E$ @% u$ M, n
4 M) R6 }( k! V
, Z( ?. j, T+ K4 S. [update-global-reputation-list, p1 z2 \) {* o) Q: v
/ }' s- n- z& G5 }
poll-class
% r' O8 C' y c$ f4 y1 r! q {; r
get-color4 Y- t6 a; e+ F* ^
6 E) h+ a9 m0 K1 s]]1 V1 V# x4 G- y8 D6 n
" S5 }* a& e8 o5 w5 |! f
;;如果所得的信任度满足条件,则进行交易0 R1 \& {% E# b" B0 V
; D& y3 r' H; { u' m( v5 s[8 K1 F5 D% W9 L
2 [- N% `/ D o" C7 _6 h
rt random 3601 B+ S8 o( x8 U2 [$ A4 [; b% ]8 F
, v+ a8 s# m: v3 j# E4 q
fd 1- P% R6 {- ]; ?, ]1 H3 q/ {
$ i7 T1 B! H) ^7 k- o* ^5 Z. E
]
% Z# ?5 [. u: F/ G
2 o+ j! S+ Q. ~) k5 [( Q3 p# xend$ D+ Q* X0 x2 [) B6 c4 X1 h
+ C2 x3 e6 N% b- q# M; n6 I* ito do-trust
3 t0 [ h) d) I% `! _set trust-ok False. U3 h, H/ T; J: w9 H
% }, ]8 |( N7 I# H) H: W9 Y# X0 |
- |1 w p1 L0 ?% f, plet max-trade-times 0' y' k- j8 A; o. `1 w! w
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]; F# X! B5 h* L' h$ a; s) q4 }
let max-trade-money 0
4 X+ M4 }. q8 s( c% Iforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
( i K# S: n9 K' E+ s! tlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
8 z, F7 n8 m+ e9 T4 y8 {* [4 [0 j9 f7 v9 [/ L0 T% [+ Z
8 w; Q$ y' Z- I7 g; D+ y( b, [, w
get-global-proportion
# r8 U M" {% e% p8 elet trust-value$ L+ m( Q3 Z; k+ _9 [) T" r
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)( |' ?. R: k& d- h
if(trust-value > trade-trust-value)
; {+ P$ f3 z# P; e5 G& j, w[set trust-ok true]- S$ u. |( p( V0 ~
end
i8 K" J" T: _' ]2 }) p/ w/ C! {* _. @/ C8 X q( k
to get-global-proportion
& T6 _# }* j; Difelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
( o/ c$ ` \8 F8 U1 e: H[set global-proportion 0]' ^6 x) S' A ?% U6 O9 H5 J
[let i 0
, b" i; |2 C. y3 plet sum-money 0
5 ^4 W+ u/ t% C( S0 \6 V$ h1 |+ Mwhile[ i < people]9 ?1 x6 G* @# Q! v' f4 c: V/ _0 K
[
+ t" \4 a, K) j( P+ ~* x) jif( length (item i
; m- T( K/ u0 X; i9 x" ?* X, @[trade-record-all] of customer) > 3 )/ T5 C5 a2 i: C! D- s. \$ l
[
~7 v- V( m y% fset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
$ m) B- [8 k! _7 @# H4 j]4 Y7 L5 ~' O9 \0 o9 m. \+ b0 X( T
]
5 Z+ x; n6 d; Slet j 0
: [$ f& c; D- ilet note 00 J2 F% D: V. N" K9 s
while[ j < people]2 C6 j' h( l# a- c6 I
[( d4 O8 B2 Q; g, O2 ~6 k
if( length (item i
7 s4 P" D. B2 Q6 z8 Q[trade-record-all] of customer) > 3 )
; o+ c6 ]' ?2 f c& l- u( V; w[9 B. y/ `; D8 Q5 k9 J
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)5 Y" E! E" H9 Y2 \: N7 _
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
6 l5 N& B$ Q$ @5 a: f; M$ i[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]8 M, h% A H& \
]
4 W% c) x; e& B]6 L5 y t; r h2 ~
set global-proportion note+ T" p+ E. t) n. o0 b' ~0 Q+ e( i
]
6 C$ p4 M' n9 ^% M9 E# ?3 b& Fend
. D1 s0 D2 k2 _- Q7 e
1 T8 I( i& c2 }* J: Fto do-trade
" E B3 s5 ~' y, L" Q;;这个过程实际上是给双方作出评价的过程$ n9 i1 R* f- J0 s
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价7 _7 L, {6 f6 I* W# L7 U
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
! x- A( v9 O$ k1 p9 qset trade-record-current lput(timer) trade-record-current
+ B7 K g7 e. r! N K* W2 E0 [0 o;;评价时间& B& I% \6 r, g" \1 b. R+ @
ask myself [9 L4 H4 J' ]7 F& L7 ~1 E' H
update-local-reputation
f ^# n$ B% d1 m& r9 _' q$ }set trade-record-current lput([local-reputation] of myself) trade-record-current
) H; r! `% h1 ~0 N7 \6 _ R]5 G4 ^; }0 T$ K( o% d
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
6 t/ U! R4 k" _. ~) J;;将此次交易的记录加入到trade-record-one中
9 L; s3 G. v$ ~& h" z) l8 Qset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)' M: y/ c+ b$ T9 z+ y! e* ?
let note (item 2 trade-record-current )$ F: W! ^, l1 ~) V% V' H/ J
set trade-record-current
" L! l7 U; b {' \! V1 L(replace-item 2 trade-record-current (item 3 trade-record-current))# w, b5 r: s' k" y1 K0 F" I- i1 D
set trade-record-current
$ p( ^; H2 \8 d' c(replace-item 3 trade-record-current note)
6 b8 _* {9 `( E' F" S
; W+ L; Z6 |0 ^, j
7 x& k6 ]8 O1 N# @- j7 jask customer [
0 R+ e" k6 ]' r0 Oupdate-local-reputation, p% S G2 v2 p/ i3 r
set trade-record-current* S* N/ s3 \6 |( h
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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: P3 m9 X2 V Q5 B5 R2 ?3 i0 C5 w P8 w% V, u/ B% p
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer! o' p6 f5 D$ ?8 I0 m+ V
6 t' ^% T) H; m; G! R0 E, j
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))7 p- J% b# C# s! a" D# Q+ D1 i
;;将此次交易的记录加入到customer的trade-record-all中
2 i: o0 Q7 J8 W1 n4 a7 V) [end9 u9 m8 O' K6 ~
# [0 p2 @0 c+ U: gto update-local-reputation
, P# b) L; ^2 S0 O0 F, Qset [trade-record-one-len] of myself length [trade-record-one] of myself6 [5 V3 b8 w8 m ^7 P2 p8 G
& m& ?: R% n3 x9 R6 Z0 H8 A, S& u- c' e; g0 x7 p+ s M
;;if [trade-record-one-len] of myself > 3
6 J/ c, c% q; n7 D2 {update-neighbor-total) ?) h" S! h7 M4 ?
;;更新邻居节点的数目,在此进行5 ^' I, E; }' w3 ]8 Q8 p
let i 3
" b+ F5 D W# w" i `: B1 Elet sum-time 0( [9 S! A$ R/ Q: _- Y; @
while[i < [trade-record-one-len] of myself]
- C* u; g2 ~ |9 q6 W' i[' A6 x* ~1 L1 H! u' B7 I% ^. X
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
) ]9 A" q( o/ m3 i0 B+ y' Yset i; x! h$ f9 ^6 i7 ?
( i + 1)
" t. M7 a; y1 d& F( C) U9 V]- B2 {; D5 b; O& t
let j 3
1 U2 t3 @! _4 i" flet sum-money 06 `) ^* g8 q! P* J, v
while[j < [trade-record-one-len] of myself]9 O) q. L3 \$ e. |8 ?
[
' D5 V& S+ d6 t1 H1 X7 Z* f9 ^! k4 zset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
8 n% C5 T! W! C3 |/ o1 lset j
1 @, U& m O; U+ s/ i/ L* @( j + 1)
& J% ~% f9 P2 [1 _0 a# ?, @]
* X. b! c; ^, e olet k 36 V3 V3 }: A4 ?
let power 0
& V5 z0 {1 ], C/ s* W1 B5 [let local 0
0 H! K* S3 [9 |- Wwhile [k <[trade-record-one-len] of myself]2 f- ^% K2 y: @" V* w
[0 [: h8 `' n+ C1 Z
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)
6 [+ L$ @7 S* m# f- Lset k (k + 1). N' S4 x2 H" f3 l, [* u* n
]: X( ]& N# u8 O u0 Y3 l- X
set [local-reputation] of myself (local)
3 d* K4 t! y! |, C( R( A5 Wend0 y3 Q$ F7 j4 g1 ]! \( j
! ^0 L6 p1 Q" ] o7 \, g9 fto update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. l. q. \6 V: Z* p
, ~) l& j: @$ s1 {+ |9 S; s+ m; {
# Z: n6 L5 w$ ~' y$ B+ Iend
* [2 ~1 e3 G. W
( {# J( B5 w, y6 }" X" i# wto update-credibility-ijl ( w5 C, t( I( e" ?; P
3 C6 O. Y) E. Y* Q8 F' 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。, {7 Z0 Q& K' m+ D- d$ Q
let l 05 s8 H5 w3 ]/ m# j2 y, h
while[ l < people ]! ^4 Y. K c+ h! L
;;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
2 v+ i2 K' c2 u; Z# A2 x4 }, w5 u[
8 T3 _# t2 O) P7 ]) rlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)2 J, }& O R& }) D7 h: @0 R+ Z
if (trade-record-one-j-l-len > 3)7 d" |4 w8 Q+ W8 H" b9 {
[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
+ r' @6 U: `& i" J- Glet i 3
3 c+ Q/ w$ J8 t$ Dlet sum-time 0: M( }' V1 i! o' Y$ |
while[i < trade-record-one-len]
% o) c- @! i* t: R( B7 x9 i[
4 ]( a- J) z( i$ V' ?3 M7 Oset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )4 Z9 S- R; _) Q" u' @8 ?
set i
$ x- |5 Z) \# ]% D( i + 1)4 s" |1 O) v3 W
]
/ ]% e2 x" l; t3 o+ I" Jlet credibility-i-j-l 0) z% d) d+ W0 { v. j
;;i评价(j对jl的评价)
" _( o( z+ r: Z7 P/ llet j 3" {+ H G5 E, T! q0 I* N! O4 ?
let k 4
k+ V2 ]1 e) L% z" M9 R3 o4 I# Kwhile[j < trade-record-one-len]
' K/ K* `! M; S. d3 p[
7 q! x$ h! C9 Jwhile [((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 p$ X6 K; C0 C+ T+ ~1 r3 O6 ]$ 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)/ o6 @$ f0 U% I" W. N2 {
set j1 r' ^" X* b; m, y
( j + 1)$ [. v i/ X" q7 w2 `
]( e* z) X/ m/ V. o
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 ))! }2 q) M. o- `7 `+ _& P6 i
* d1 F$ [- b/ m# P8 X
: A# S; c4 J# v& W
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
* S5 ^$ z) y. x7 M9 D;;及时更新i对l的评价质量的评价' U. H H9 y2 c1 `4 l) i, K
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' x7 x+ f- v* sset l (l + 1)
- o$ k6 }: i0 [6 p6 y' b]
% @0 v Z7 S1 F! k! @0 C) bend
0 o5 c6 C8 q" A" A" a7 b: [: q
{- x# x! V( t gto update-credibility-list) H- p( G: ~% l3 d+ g
let i 0
; _# |3 y1 C" j5 J8 Z" Z! @while[i < people]
' S0 L, F# g0 D[
! Y% U h8 _* t( |+ ^6 ^ d# Wlet j 0
# }8 q4 v6 G5 [/ Jlet note 0; i" W, V. A& x5 r4 K! t- c
let k 0( i7 k% [& T* E3 m. R: l! S, z
;;计作出过评价的邻居节点的数目4 t6 U6 J) X" F
while[j < people]* ~, L+ U {' | [5 t" v: B4 a
[% l. w$ [ N( n) z. O
if (item j( [credibility] of turtle (i + 1)) != -1)8 W/ m3 C) o0 ?+ \" e' B. M- y
;;判断是否给本turtle的评价质量做出过评价的节点
- U y" G0 X1 }7 @) e[set note (note + item j ([credibility]of turtle (i + 1)))
1 A8 ?) L% p, H( v;;*(exp (-(people - 2)))/(people - 2))]
. q. R$ q4 W0 C4 @set k (k + 1)
' g3 u5 s' F2 P" H4 F: ?" c9 j7 {]
. [+ p3 J' A& q3 d& c8 Q( eset j (j + 1)
" ?- `. O% d6 n- G- _, J: }4 B]
7 W3 E/ V( x( q+ Nset note (note *(exp (- (1 / k)))/ k)6 ~7 L/ ^; @4 K2 j$ l, m
set credibility-list (replace-item i credibility-list note)
7 ]" S, e& u7 hset i (i + 1)
- |! a7 U3 J* B7 [ b]; w+ C% W& o! x g# j I2 @8 D( ~2 N
end
! s( ~4 n" C% B# S4 v- m: V* _3 X0 e( R7 o" B. B2 p7 \
to update-global-reputation-list
. M! Y0 r& n7 _! _let j 0
1 d" z# V/ K2 Y- {1 Wwhile[j < people]
+ _) D) z+ M- p3 P[
8 @' f' k- N7 h2 B# a/ C" r9 K' Blet new 0( d. E0 D- ~- j& ]
;;暂存新的一个全局声誉& C0 Q# J/ {1 s
let i 02 p: J3 U( [" m: ?
let sum-money 04 k, w; ~: u% }4 w% l" x
let credibility-money 0$ A& G' B7 D3 x' a( M. F# F
while [i < people]* ~$ Q% o+ B# b& o4 Y) b& t
[- T9 n7 F5 r h2 B
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
' Y* G8 T. ^. z( S1 r% p" Gset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ I/ Q r+ K: K4 B- \
set i (i + 1)- E% q, K* D* z! n( i
]
1 O0 H& @3 d" vlet k 02 j5 x1 u- u4 y
let new1 0
' t5 ?* X* y, }5 _" y# K% l, ~, Gwhile [k < people]
0 J! H" @$ y' E6 w. X: C9 `[, X! P" O% P* x8 I5 c$ Q
set 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 o3 M* W8 m: m* l6 }3 z) B1 [/ D
set k (k + 1)
" O* C! Z' c: Z9 Q0 s- i6 t/ {]
4 A/ O' n' M+ p* d: Sset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( {8 J0 l- G5 Q# E0 o M; ^) Jset global-reputation-list (replace-item j global-reputation-list new)3 g% T( h9 w* ]0 w7 h6 K. A D8 E
set j (j + 1)& D% g1 Z+ o. K3 O+ `: q8 N
]1 \# h( j$ O5 e; o; V# d7 C) e6 N
end* d' B q" S+ v! z9 a$ S# G, j
2 i, s$ A$ W' ^6 I" B5 k' D1 U+ C
2 i) r. [' W( L8 |. `. T F
' v" o. d6 `5 |! Mto get-color* T/ {; q! i$ S; h3 S/ |; d* @
- U& c1 b5 {7 Q% }- f6 x
set color blue/ z" ~1 m2 w7 B) P% @) Y
end# P: X2 L k' i0 i
: x, B* F- ? s
to poll-class" ]+ R0 N* \$ o1 d3 F
end, X7 A0 G5 f( n
6 @* L/ O2 ?8 p' d3 x2 w
to setup-plot1
8 q* I, _4 A* T1 a j N
3 Q% |9 S3 r( A1 q+ n5 Nset-current-plot "Trends-of-Local-reputation"
3 J4 e" H# a( ?6 l/ ~0 W, a' [7 z4 [) F1 d/ Q
set-plot-x-range 0 xmax* [4 @9 s' Y$ \# P( y8 E% i+ f
7 K( S" Y2 u$ m2 D- C+ a! ~set-plot-y-range 0.0 ymax
$ e/ F3 ~1 K/ V r2 y; y; Wend
' X R; {" ]! R3 E8 G& z( L
6 ~2 q5 R9 `# O8 yto setup-plot2
( |+ M; W- c5 i( a
! _- _8 v( b6 n% H9 fset-current-plot "Trends-of-global-reputation"4 {$ s" F! ~6 H$ X% x0 a
; j0 L. t8 J- K/ `( A- ~
set-plot-x-range 0 xmax @: b+ R) S$ j2 Q6 ?! _& ]
7 `+ b R$ k& Y/ X0 B# H( dset-plot-y-range 0.0 ymax
9 \0 P5 K6 I; R+ n( L. Lend
/ S# I, H4 {6 C8 P4 P1 o7 `
$ U4 C4 M" P# g& Y# g3 ?( ~to setup-plot3
- q# W) S( E& |- p* B, [9 k C4 z0 m
set-current-plot "Trends-of-credibility"7 c9 R* K$ f/ U- R) K
! o; Q; ]8 s5 n9 v; S9 z7 A! A
set-plot-x-range 0 xmax
2 p! }) T1 o# W% n1 N8 B
& E* A, S% W; h* S# Mset-plot-y-range 0.0 ymax3 J+ q# u2 ~7 G- F
end
5 S: y8 r& P2 F) h Y2 n# |/ T. a* h9 h: ~6 ]* p5 @
to do-plots- {" C# @# ^& z1 I( F
set-current-plot "Trends-of-Local-reputation"
5 T: {* d B. j, Rset-current-plot-pen "Honest service"
" w& ]0 R+ \" f' r Hend
7 `- k$ i4 C$ `$ H4 |5 }/ s6 t! L$ y; E& P* s
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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