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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1 [1 P8 S: M: [# @- k
globals[
$ S5 }3 Z- [% J0 z s- X( Txmax
6 Y& |& j/ [4 P, Yymax( d% ?# U# u: ?& h$ N
global-reputation-list# h, p3 c2 F& n/ n" ^4 S/ X
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;;每一个turtle的全局声誉都存在此LIST中2 S# v# m' U1 F: I. w. I ?
credibility-list1 U, N N* n" F7 B
;;每一个turtle的评价可信度
8 K/ O" D% ~' ohonest-service
) `! M$ U: U8 qunhonest-service
0 J' P$ {! j& P6 Moscillation8 y- L5 E) T4 W9 z6 i' d. l3 K
rand-dynamic! Q* m: i& @6 Q* ]3 o# h7 r1 {$ m% J
]0 Y+ V& c, z, C, _* p* B* E" n5 Y" M
+ L+ m2 d4 K4 sturtles-own[9 L/ k5 T9 R: U8 h
trade-record-all
) x$ M9 }8 A/ K J4 m6 y+ l: X! B9 t5 U;;a list of lists,由trade-record-one组成
; {5 x. p' R; _6 C7 X% l P/ atrade-record-one
/ _: P/ X. @4 |' v4 w/ J7 Z;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录+ L2 @6 a- d, M" t2 r
, ^6 |; f* z; J5 x# y7 }; z1 H; 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]]+ _1 O5 ]) c" v( K6 [
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]: v( d( P7 P9 U1 R: N
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
/ S0 i1 z4 w2 M) d& K" x1 ineighbor-total1 j* ?. u( [ e& m9 g# X* @8 H
;;记录该turtle的邻居节点的数目; ^+ M: G1 @' @8 _7 y
trade-time
" |% v2 y5 u9 p- R/ q' G' W) \;;当前发生交易的turtle的交易时间: S0 e0 ^4 t; x, i
appraise-give7 D4 K# ?2 m; }! }
;;当前发生交易时给出的评价; F. D0 E9 o5 z; a! O: w
appraise-receive6 o1 D6 h; y; I% q! `2 M' ]
;;当前发生交易时收到的评价
8 f7 m8 V% R ?1 F3 E* A: o. L0 H+ Cappraise-time1 ]7 W- u1 [' l: K- j
;;当前发生交易时的评价时间# z' \. t0 [; p+ E0 l5 V3 o
local-reputation-now;;此次交易后相对于对方turtle的局部声誉6 j( x' S+ g, a5 ~3 N0 N! e8 }
trade-times-total. _* S( Q+ ]( G! n+ i
;;与当前turtle的交易总次数
8 ~2 ~% @7 E1 D$ A$ W" p) Q; Etrade-money-total. x/ N; ]! R- Q
;;与当前turtle的交易总金额
7 z0 A1 c+ g% p/ g( q7 ^$ flocal-reputation
7 G( w, k# ^5 h% x3 {. h& Iglobal-reputation# \1 g1 {9 t$ j% H
credibility3 `( J+ N7 z, `5 O
;;评价可信度,每次交易后都需要更新+ t, p( E9 Q) }# H) `5 o, `
credibility-all
" n% n* u0 x' m/ w, b. t" [;;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
; v, @) c/ v/ S& w7 s
/ ~% Z7 B/ b* o% E;;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 o* S$ `: b9 Z' N! T, ?* M( I5 rcredibility-one
3 _8 \6 t8 l8 R2 |# ~. [;;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
3 W) q( Q1 ]. uglobal-proportion
9 n8 ~6 G S, _. U, Acustomer( g1 O X- n& [
customer-no
) G8 }( o. B8 K# u; o- Btrust-ok
: \* j$ e6 m3 s( N: Wtrade-record-one-len;;trade-record-one的长度
2 z( T7 F, o5 _. l Z) Z7 D, x]
( U! R! z0 _4 U; ~2 M# N* o! _9 ?5 y$ y
;;setup procedure P3 {7 f/ ^5 v- B, |% l
8 o1 k, c( |* d: g. \ _% M
to setup
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ca
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initialize-settings1 |6 r% ]" O H/ `+ R
7 n* ]- p# ^5 d. @. j
crt people [setup-turtles]3 e% V+ A5 h ?; w& O5 p
4 l; C9 w" R' \9 J9 j+ j
reset-timer
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poll-class
]- | q& L; S+ m: R* l5 W/ ?4 J$ u5 M: O* {* j
setup-plots
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do-plots
1 {% X1 W0 u. v6 hend
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: M* S5 I* X9 oto initialize-settings
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% W+ m8 e$ I! ~" ?- `2 mset global-reputation-list []
% ^; x/ T# a; q' c' H8 u/ z. p6 [8 i k) D8 J: N8 D$ V
set credibility-list n-values people [0.5]( x: O1 G- T) w7 }
, L$ z' l1 ^/ C! ]3 N# b& B2 jset honest-service 0
% w% e! I! Y$ d6 G4 r) E I5 O5 ~1 l" {: S/ S1 z( e
set unhonest-service 0
) j7 j. l. H# ]. L1 K6 u* q4 K5 m, X6 _: ^
set oscillation 0" W! L4 R! u* L7 n% G" f
7 u. |8 |+ }% u% |9 lset rand-dynamic 0
( z A% ]+ r- f2 ^, Zend
c! [5 {5 ]7 P" u$ Q- n y( R! @2 ]" P
to setup-turtles # q. B/ r s9 c( Z$ K' n
set shape "person"6 R9 V8 H! L a2 Q0 w7 V
setxy random-xcor random-ycor( P$ O2 \& s7 ^8 e
set trade-record-one []( z% [; ~$ b3 A z
8 y1 P/ J. I( ?4 x: \. gset trade-record-all n-values people [(list (? + 1) 0 0)] 6 L1 o7 \/ r# T2 c
- ?0 k( f0 \2 e x4 h
set trade-record-current []0 j! U5 z/ U& k2 y% A
set credibility-receive []1 }' S4 P( `2 K, Y: \5 P) E
set local-reputation 0.5
3 l6 e4 o& _% S4 |2 b( rset neighbor-total 0
2 ~9 i2 {# U+ H5 k7 Z8 t2 `; aset trade-times-total 0
2 I% m$ ]2 Q& U* v% \set trade-money-total 0- o5 j6 R$ d1 I( ~0 q
set customer nobody
; b/ ~- ~# a, M, h( zset credibility-all n-values people [creat-credibility]
; Z7 N$ T6 n1 e: bset credibility n-values people [-1]' e: U- T7 Y: v$ k7 V8 c8 t! F
get-color
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end
6 r7 e" J8 z \( |9 U/ \% l5 K* K* {1 X8 ^3 s
to-report creat-credibility5 J8 {0 |7 x# K6 v
report n-values people [0.5]3 v) I! \- Y& Z! W# ~$ `
end# ]* _( y# X5 h
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to setup-plots8 b. b! R- w+ ^) L9 n1 j, j
0 z, K9 ~% i& Bset xmax 30- L M% l$ a, y( [9 g
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set ymax 1.0
' v# c# h. k ^. N: u- w- s ^- j7 y# f; A1 }' R8 C! o3 z# v& R
clear-all-plots
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7 T: A% f! f+ g7 D2 {) zsetup-plot1
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% c, I( J9 U! ]9 e o Wsetup-plot2$ k6 T! n1 `1 J" ?4 e4 @: L
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setup-plot3; ]& b- e6 I, A7 }6 U; }, C6 z9 _
end
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& M. r: ~! J& @& n+ m;;run time procedures: M$ n0 h! J' J8 Y5 r: d7 z
5 H; ^2 |" Q2 E2 ^to go' r( u# P* o* N, N3 z, @
, Q, T$ e/ w# ^3 E) [6 ?- _- _ask turtles [do-business]: W/ ?1 ^. Q/ l
end) m. h8 n& `) O) M/ t
; ~/ e5 ~2 ?% Y& y
to do-business 2 Q7 r* Y1 z$ l9 E* k" k% D, D9 J
2 S y: S% o( H6 M) H# }4 i+ D& o6 S6 c W9 l8 {$ [. d, v$ l
rt random 3608 b6 ~* ~5 {, a" r1 v& e/ F3 E# N
( _# s' W0 ~- B! s" \fd 1: M( o* u5 ]8 M9 O( Q( u1 V
o7 L+ ]& P- t" Q" u
ifelse(other turtles-here != nobody)[# _. O- ]4 B' C; O, E+ M
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set customer one-of other turtles-here1 S( l2 H1 g: y6 t
+ Y! e! d, {" v; O( k;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
' t7 B# P4 S. }4 p! e4 k[trade-record-all]of self0 Z4 w2 \, g# m M/ D2 z
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self, Z7 R- `" m1 ?6 Z* G' T, q6 t0 S! I7 J
6 Z: o8 I* W4 a5 S) a x, {. z! Hset [trade-record-one] of customer item (([who] of self) - 1)
; v0 E* I8 S2 @' r5 \+ `( E[trade-record-all]of customer' r7 [9 ~# W4 M+ v! k7 X; u
; S+ n3 K9 R- K, w3 P# r. {7 n
set [trade-record-one-len] of self length [trade-record-one] of self
# y/ G4 s- K9 Z G1 d$ ^( {6 Z6 s# t0 S& c2 \# }" f4 ?
set trade-record-current( list (timer) (random money-upper-limit))& l( q3 R6 U3 _: a$ N# E2 S8 {
) _3 [+ @& k$ R0 h
ask self [do-trust]; S( ]5 ^( T3 [' n6 B" Q
;;先求i对j的信任度: U: v! w% V1 D; |
+ M y% V* n2 Y: }( H* vif ([trust-ok] of self)$ U6 n; O# e6 A! D5 |, C
;;根据i对j的信任度来决定是否与j进行交易[
! Y- R7 I% [, z) r2 @- [4 I1 k6 P4 Uask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
. |1 m0 l8 l g. D1 b4 n* {
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8 x. k# g' i) v8 q* U
do-trade! ^- p: c: F4 v2 P9 H) {
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update-credibility-ijl
% E8 K6 J5 A% p, |% A! w- v8 [! H( _; m( ]% [+ b- Z+ V( p# K
update-credibility-list' z5 s) z1 t! ?3 V W% E
) w6 e$ l/ z3 o- ]- x: u2 A/ M" v' S
6 t# E) V' i0 zupdate-global-reputation-list
1 r4 r1 h! s" ? f/ Y$ D# |! M# O: v. N
poll-class
+ p* j2 R% d( t- X. _
1 O' I% L- P6 |$ b( vget-color
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( L/ g5 ^; E+ C- K2 k k4 ~]]
& o) e& H+ j7 N) \8 ^4 e ]- ]; F0 e
3 k9 o/ y% U6 R: s3 `: ?9 G2 Q |;;如果所得的信任度满足条件,则进行交易. b3 W9 c/ i7 S! E R0 [8 w/ e
# l" t$ [* s ]; F9 ?& @[0 u1 U$ K! @" K
! Z* a' }% `/ F6 P" J# y# T3 w L6 Vrt random 360! j+ h4 ^: E3 S* _. L
# `" u4 K8 ^; b p6 vfd 18 _8 E$ ]4 j& c+ j- [3 X' \- ^7 s
8 W* Y4 v, j j: {]
( ~, N* h% N& ]1 W0 r
# [ A3 Z/ ]4 E! c: M4 V2 ^4 o Q- }4 }end$ z, l2 g* ^9 p, ]$ a; v2 P; Z
; j0 D- n+ a$ l5 V" M9 Zto do-trust 6 T* ^/ v- Y( h3 A3 t) }8 D: H
set trust-ok False
p' e, Q5 z/ l' c( E1 m9 P3 K* _* ^7 o8 h+ w1 W3 C( k) v
/ c0 W. a' i2 ]5 U( }( x# K+ Rlet max-trade-times 0
- c4 }+ F' E l4 b3 a& | Nforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]! ~: R$ i. c* ?- ]0 N/ M2 L2 x
let max-trade-money 0
2 Y! h: ]1 m5 F4 cforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
; y0 Y& e/ S8 C# L& N d3 @6 C7 n( w8 nlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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& \( Q% ^8 t# n$ T7 `& b8 D" Q
get-global-proportion, w- T- W. t) N" k3 v
let trust-value
, O5 R* Q$ V" {" elocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)- P) V4 o# b+ q
if(trust-value > trade-trust-value)
0 ?0 w/ s2 Z1 M/ \" k[set trust-ok true]
9 H+ ?% o& h4 yend/ q" g+ J; J9 I, L% l
{* ~0 l" |/ i B2 e8 K$ g/ Y
to get-global-proportion' f- _5 l" y- B y
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* X U6 K |! W/ E! R5 W[set global-proportion 0]
! w# E" ^8 [' v[let i 00 c1 O) h2 H0 M" u2 f2 }4 i
let sum-money 0
& I$ \7 }& `; O2 T# j) U; f. v6 A8 [while[ i < people]/ \8 b3 M) ~) W3 B% P5 _5 b E
[" K z3 t# C2 ?! g8 L8 _5 ?# g" j
if( length (item i. }+ {& C7 O4 m8 o' y% @1 x( B
[trade-record-all] of customer) > 3 )
& Q4 `) q( l0 L2 N, n$ l7 w0 g[
' `( e5 d$ H* f6 f% ?) Jset sum-money (sum-money + item 2(item i [trade-record-all] of myself))# ]8 a; `$ s; p; v5 x
]
$ f4 K3 ^0 R: @0 X- Y! K]: n- |$ [. \: P/ `
let j 0
' `0 u" ?$ b2 m7 V6 Hlet note 02 k; O5 Z! e7 L
while[ j < people]
1 g3 [' w) f- W[
1 H7 E9 Q# W* Z9 E, Nif( length (item i* }: [% p }( u9 |6 V6 u7 L# ^
[trade-record-all] of customer) > 3 )7 x; n5 e* W% B# Y: r
[
Q6 {: a9 g0 h8 l$ U8 k4 rifelse(item ([who]of myself - 1) [credibility] of turtle j != -1). ~% j3 P; Z0 V2 C6 Z6 b8 I
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' i4 b; J& i; X1 `[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]/ k! u% u' Z" p0 s
]3 o9 |9 l0 S% N1 V7 I! R6 x
] S4 o9 b, W3 i
set global-proportion note
8 _+ G; X) L; Q" P3 `+ C1 S/ J]% j7 C9 U8 _! U/ f4 S D" Z+ Q [7 B
end6 b4 {9 V% Q' R
8 o7 r4 g/ i0 Y- b0 }to do-trade
1 C4 E! l2 K" f8 p; V( ~( {;;这个过程实际上是给双方作出评价的过程
( M; s2 w( U0 Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价' J5 s$ ]* ~! ~% X0 g% g% V% ^
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
`9 X0 ^9 v1 y% ?set trade-record-current lput(timer) trade-record-current/ U4 [* w, d; w6 Q
;;评价时间, z. L. P8 X; C
ask myself [6 w$ J/ f9 l1 N* g
update-local-reputation
: g5 ~( d1 b+ k5 e0 t9 ^) g3 pset trade-record-current lput([local-reputation] of myself) trade-record-current: i$ }, ^; W% v. L
]
5 q5 S0 Z2 ^1 n" sset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
& O* N. X; j* A0 l3 z1 V& r;;将此次交易的记录加入到trade-record-one中9 |/ H4 l) W$ e7 B1 }4 l
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! T. W* b- w" v' d9 K. Y
let note (item 2 trade-record-current ). |0 ]& p3 t! W" O
set trade-record-current
' E9 c, d( u3 `5 s(replace-item 2 trade-record-current (item 3 trade-record-current)): {. P Y' I/ l: m
set trade-record-current5 o1 t; l* x0 g1 [7 Q7 G9 Y/ {$ i6 C
(replace-item 3 trade-record-current note)
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8 h3 Z( O: B' v6 G
$ Q" \( h$ A/ y0 ?ask customer [
6 I/ {: q5 R$ h# |- s1 h) fupdate-local-reputation' N) l: Z8 j- e8 a- R
set trade-record-current
5 U& ]$ P) K' U7 h(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 4 ^- q3 O: @2 U% r2 A' }6 `
]
6 j4 L' N* @4 u# U1 m' `6 c) J0 V. F- b6 W) N( i% T, C1 j* e
: x0 V* I N5 a4 d9 l1 ?set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
9 ~1 A. f2 x% D: j9 W$ d( T
- S# h! e4 q+ Y0 H7 ?set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
! m. |0 O/ X: r7 w) E;;将此次交易的记录加入到customer的trade-record-all中
& Q/ L" [0 R1 z0 w# y6 send
0 M U) f8 M: f. L1 u+ [8 s4 |
8 y8 J8 ]. G+ z7 }2 {to update-local-reputation3 M7 a- L, `+ g
set [trade-record-one-len] of myself length [trade-record-one] of myself$ ^5 _$ j: o. y, z6 G
+ o! A( B8 U% K3 Z9 A: k! V7 p" f, Y* A0 s$ ~
;;if [trade-record-one-len] of myself > 3
; K" A; [6 V' K+ K- E2 X! g. [5 Q% Xupdate-neighbor-total
% G9 P2 A* e9 ~4 L;;更新邻居节点的数目,在此进行
5 F6 o I5 L5 n+ l* llet i 32 q$ N$ [0 R) ]. f2 r g2 h
let sum-time 0
0 J* a9 g4 `. owhile[i < [trade-record-one-len] of myself]
5 `# J5 O' d0 R- C% V$ \[1 r" \; K8 H4 M2 h( G# {
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )( H- S8 L# e0 L
set i
! t5 n5 s) y) b9 c! H+ w/ k+ k0 ^2 \( i + 1)
& w4 _0 |. ]+ c$ {. G! P]; r/ v9 {, y$ K
let j 3
$ u. r- L8 T1 ilet sum-money 02 @9 P) E* p1 u' v- z5 o4 b
while[j < [trade-record-one-len] of myself]0 Z: y. R: @3 b4 g i p
[! a) \5 M' J2 A9 @
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 f0 X {( }+ l c
set j
% h% l9 i9 G* n9 N! F: \( j + 1)+ |! T2 j4 u# {* b5 [; a7 ~
]
, p' o* E. S+ {) b' Vlet k 36 h3 k& [4 N1 l7 _1 X/ @2 I
let power 0* s# m" i5 V0 V
let local 0+ ^" P3 u8 M4 N/ D. A
while [k <[trade-record-one-len] of myself]
5 O* T$ s* U+ K( g) R* j0 X9 ~[ f5 ~( H8 V* B/ G% N7 x
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)
3 d. C2 ~. _4 R4 y' E* ]2 Oset k (k + 1)
8 _6 A0 b; [# V3 h]& ~7 F4 T5 B$ h P6 C% y" U
set [local-reputation] of myself (local)# t5 g3 D0 Q$ @- h) z9 {. d% n0 \
end. h2 \2 y# R- _* v3 g8 n7 F/ Z( X# ?
/ }6 S" T3 P2 i! s- ^to update-neighbor-total8 t5 z5 |7 I- W( E. \+ H/ X
6 O6 x: H7 ^* H7 c; {if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]7 ? N3 { A: m; V4 u" ?; {
4 ^5 \( B2 a& p" S+ c4 G" \/ m: J v$ }- i" y- i0 P' [
end
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to update-credibility-ijl
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' v6 _: m8 h0 Y/ v; t* w- G;;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。9 G9 C" u- ~6 J8 Q
let l 0
0 N/ c$ A, T }8 twhile[ l < people ]4 M" O& a0 {$ ~. Y
;;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" \/ l$ {, h/ r, Y4 H+ o- ?0 @
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
# W" _$ s# N7 O9 Z, m1 [if (trade-record-one-j-l-len > 3)* ^, F* ~3 J; J# c3 a P
[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
) v; B5 y/ ~0 v$ Xlet i 3' y7 V2 |7 J! d- {& U
let sum-time 01 _: q+ U0 w' ~4 \9 }
while[i < trade-record-one-len]& Q: ~& w' j: \! z! P
[
5 a4 O. E8 Q( d6 O! q! Eset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ p& g' _% S* t( W p1 e5 Q
set i: @! x* t% y% F* }* D
( i + 1)
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let credibility-i-j-l 0
6 @# m+ m a% {* m/ };;i评价(j对jl的评价)
# D/ V3 i# P! k6 K. c7 X3 Ylet j 3
/ w4 l5 u% l" y9 m; u$ _let k 4
4 U$ E/ C) i$ c* i) F' _0 Hwhile[j < trade-record-one-len]
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1 h' ]0 `% {' U2 y* ~( | h- iwhile [((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& m5 ?9 y' Y" x. y: k
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)
8 D, ]& p9 D* E! `) H5 d' F& ~2 Q' dset j% h& l2 |* c4 l& T
( j + 1)5 b( I$ i- q0 s8 ? w
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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 ))
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
, r& w$ t4 f+ v& O6 U;;及时更新i对l的评价质量的评价! Q( O9 \8 l& w
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]) [7 S1 h5 Q! t7 l( K+ G5 ^
set l (l + 1); R6 |' M( `8 M# q. T; X$ F
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end
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to update-credibility-list) Q& ?# q5 b7 x
let i 09 n3 f* b. l" Y3 d/ m2 s- k
while[i < people]' t% G. I. b- t8 c* j5 } O% x7 F% c
[
& n; a& O, e( Y/ }' t) o8 hlet j 0
# c0 i# B; |4 Q2 r' hlet note 0
& _5 w$ _% f! ]) z% I& elet k 09 N) [9 m& A2 ^. I8 _ b, d4 H( S
;;计作出过评价的邻居节点的数目
( k+ ~* m9 F) i7 g3 }( u8 ?& @6 _while[j < people]
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; ~, ~9 ?) N- {' Iif (item j( [credibility] of turtle (i + 1)) != -1)
: z8 b4 \4 f! Q0 A a' s3 |# @' S;;判断是否给本turtle的评价质量做出过评价的节点+ _2 g7 o% e- V: O6 K
[set note (note + item j ([credibility]of turtle (i + 1)))5 | j" o$ b' F7 n. t$ `, ?- B
;;*(exp (-(people - 2)))/(people - 2))]
% }1 V- _* R8 w0 b- sset k (k + 1)
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% F0 J" b6 l# Mset j (j + 1)& J+ q% N7 X/ m0 j4 V \
]
" ?; ~& v3 ]7 c/ M3 g, lset note (note *(exp (- (1 / k)))/ k); H. D. N. {# B4 u- i9 u
set credibility-list (replace-item i credibility-list note)6 i6 ?. |8 W- z/ u+ z$ I& h
set i (i + 1)
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end( Q1 Z# [9 L' \
+ h/ z3 T, U$ k2 S* vto update-global-reputation-list2 ?! |9 X$ d# [ a+ f2 h4 o
let j 0* _6 w0 @' L7 f$ `/ M
while[j < people]" u* i$ ]0 Q& {! p# R
[
1 r% B8 I$ i- Y% N* zlet new 0$ U- ]1 v: s/ q0 A4 W1 w
;;暂存新的一个全局声誉
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let sum-money 00 ]8 P! r% @+ ]4 B/ [
let credibility-money 03 }2 }* R7 c$ P$ L- _& Z- k# ?
while [i < people]
g& o/ k2 `+ l[
' C- k% ^* X- w. Q3 yset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))* a4 [' J5 l5 }
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))0 Z- U' p' G4 U, V
set i (i + 1)% w$ s2 e) d! k& m' P
]
! ?* K' I7 _/ F4 e9 _. Z# d) a8 b- \let k 0
1 D" m; S* {5 z x9 J" c8 alet new1 09 h6 ]) n, j% ]! u& @
while [k < people]
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8 I; b5 q% {* y8 i3 Fset 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)5 V/ F" v, D5 \) {8 n
set k (k + 1)1 {8 \& {9 W! {) D, O' e1 N
]
, C, u$ {* {; k2 b3 W6 yset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 8 M7 a* {0 @: J$ ?
set global-reputation-list (replace-item j global-reputation-list new)
. q( T$ Z5 Q* T1 N Cset j (j + 1)6 _* E, f( ^ ?- }
]
2 ~; Z6 A# ]9 v' z5 send
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2 I3 i2 A+ S$ e r# G$ `8 Bto get-color# k& M" J8 U( W9 J. C/ ]0 n8 H, {
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set color blue
, r' v6 P# o* F, zend
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to poll-class9 ?- h! r! i' }/ V; @
end
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to setup-plot1, F+ w+ j" _3 d# d
8 h* N7 a+ b, | @# y. M" Rset-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax
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1 g- G& \. b8 i; } Gto setup-plot2! Q7 M4 b8 d9 V v8 k) l
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set-current-plot "Trends-of-global-reputation"8 C1 ^9 j( V- ?; F- S3 B k/ b5 T) R
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set-plot-x-range 0 xmax& n4 c) d% e: _( n* u( P* b! `# H
+ i2 I6 S! M8 S8 u, C0 \1 G, Nset-plot-y-range 0.0 ymax
" \1 c o/ c! V& y5 D( \end$ r! o# C; x/ c4 o- J
- b2 h) H& {$ h- Rto setup-plot3, e, \* V7 Y+ ?; r
& J2 ]2 }% N7 @+ F& rset-current-plot "Trends-of-credibility"! e" i: u! z5 m0 ]" q
' }: m0 e% H4 A2 X4 f( gset-plot-x-range 0 xmax3 J1 W4 w: w0 Z2 O) ~ }! a
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set-plot-y-range 0.0 ymax
. ^) Q3 \9 m# b9 H5 {end% v1 X/ d! @- a( t; p
5 H* H, }1 h7 }4 _5 @. N9 }to do-plots
7 C5 g5 a B, ] f m6 U4 Yset-current-plot "Trends-of-Local-reputation"
8 W& D: j" y! u# e5 Eset-current-plot-pen "Honest service"
1 `8 u0 v' Y5 ~/ @6 bend
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Z/ c3 L$ g3 Z$ _; ? G$ `[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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