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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
& B) x6 u/ U5 f/ S% P' L% ^globals[
& K: T8 R9 ~$ W% ~) Hxmax, I. A) R7 v% J! s' \" y6 q' l
ymax
7 n e% k6 h: ~7 w, qglobal-reputation-list
9 ^3 c8 g! `6 Y/ ]8 W
7 x$ Y% s/ i. U) v! ~ s/ };;每一个turtle的全局声誉都存在此LIST中0 [; b+ H5 m; C0 W7 Z
credibility-list' v* b: T6 c" K2 ]& [; ~9 Q
;;每一个turtle的评价可信度& n$ L/ i0 T2 t
honest-service
# w; c& h5 \0 A1 a; C2 y& m4 runhonest-service
/ I( B- ?/ V# i4 d9 o* F# doscillation% F% s" ~( k' @; F0 W/ y/ r5 v
rand-dynamic( S+ w( G8 V- u9 H
]% M. n7 T2 L- n* o6 s* e9 z
4 t5 J" U% h, r* Y1 g: M$ e# mturtles-own[5 h& ~8 b9 t! V$ f: M
trade-record-all
7 i+ u3 }3 K2 b# w8 F4 P;;a list of lists,由trade-record-one组成) | A* [5 e0 `4 U& A; N
trade-record-one) Y3 D6 Q7 @% y$ v& Z O2 e! U
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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! o/ m) q9 Z) L0 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]]. p5 F) }( a }3 q0 g
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]- B8 E4 i0 R2 C! }+ {
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 S* {* @$ }; k# N
neighbor-total
) m4 o8 M: c4 d+ @6 |- h# l;;记录该turtle的邻居节点的数目1 y2 g3 \ i2 J- K
trade-time
5 s6 c8 [( G/ s+ T' F9 };;当前发生交易的turtle的交易时间
8 R2 C; [) w; o( t/ ]appraise-give8 G: X1 z8 |) i6 b1 b4 T
;;当前发生交易时给出的评价5 T' M! }5 w7 w* K) [
appraise-receive& a, a2 q( ]7 E: d( \3 C
;;当前发生交易时收到的评价
" x3 J; y# [+ t# fappraise-time- I/ n+ e2 e a0 o* c _& |7 L
;;当前发生交易时的评价时间
6 p. h) r6 ?, o blocal-reputation-now;;此次交易后相对于对方turtle的局部声誉/ G( w6 ~, k+ K8 l3 r+ g
trade-times-total3 C& Q- ~! x& @6 }
;;与当前turtle的交易总次数+ h; n a; U# r' T, X- c0 n6 D( s1 }. X
trade-money-total
7 e1 @5 x6 d7 ?# U$ X( k;;与当前turtle的交易总金额. i+ m9 F9 ]/ f0 _5 f0 N/ {
local-reputation
9 X# {* T, y: v. f; B# }global-reputation
3 z2 p, J; K& n' m6 Mcredibility, ^# Y9 `) ^; y2 ~7 Z. G8 h! D
;;评价可信度,每次交易后都需要更新
4 Q* {$ H. K3 `9 dcredibility-all7 _ m, ~: l& t/ l0 s
;;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+ T5 }2 n) \% N7 m- t0 {
+ o7 R' B' U- R+ L* ?) M
;;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0.53 w2 P' w$ B# s4 I9 b: C- D
credibility-one
5 a" a# h. q1 p0 o! l# f;;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5 u' Q7 |& N. W8 x9 F
global-proportion' Y" \ z6 q. i* f
customer
$ R& |$ B- G# qcustomer-no2 S; Q2 @) i% [: [4 N. {
trust-ok
" ?7 h* C& z, otrade-record-one-len;;trade-record-one的长度! s# S* a5 }) h$ \
]
" O8 H1 k4 ` V) |( ?* c# L! p/ L9 z$ D4 [% N4 w% p Y
;;setup procedure3 D% J, {4 m$ V& M: j( Q8 Y
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to setup5 R# K, B2 c" Z2 y1 R
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initialize-settings
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" n: H6 j* h3 f+ e9 f$ J( u; ycrt people [setup-turtles]
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# z) j& G4 V7 v% Z5 ?9 Lreset-timer
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poll-class
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* |, N4 V8 k8 m7 O. _& Ksetup-plots) x @, t! M7 K' Y
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do-plots& R& K2 |; Z: \8 [* M2 p" v
end Q" z: c( H6 Q7 `
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to initialize-settings/ S2 w2 e! O: K, `* `
( t: S5 _+ j5 j& G2 ^+ |set global-reputation-list []
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set credibility-list n-values people [0.5]; G- N- T9 N5 O/ X
, y! E5 G$ ^4 B0 a8 l( m# ~5 ]/ rset honest-service 0
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set unhonest-service 0" E) }- L+ _% v5 i+ k5 m
% ~9 ]: T1 u) L% s/ \
set oscillation 0# P7 U5 S2 {5 A
2 g( r( f6 @0 h3 Yset rand-dynamic 0
$ H5 x* s7 a9 `' i0 pend$ {* ^ O+ r( z
8 q& J; a* J0 hto setup-turtles / B$ B2 l3 l& u; F: @1 [7 l$ q
set shape "person"
- @6 x0 K! J! O2 T5 Csetxy random-xcor random-ycor
# b; ^/ e; o7 ~% p# \0 sset trade-record-one []2 S) L# c8 z& u1 L @ [9 t5 }
0 v/ z- p) W x: ]$ I9 ]! q2 M3 |
set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []- ]$ L9 J; _4 k2 z$ \7 u; W3 Z
set credibility-receive []( \: _0 w; s6 w& Y& S2 ]
set local-reputation 0.5
" ^. y3 [0 H; G5 `- kset neighbor-total 05 u# t/ V. h, E' V, V- y* {- ^
set trade-times-total 0
" }5 t4 M6 x9 Wset trade-money-total 0
& q; b6 v; q, V; i9 p; ^9 dset customer nobody
# `1 U7 w6 x( h; @' a9 ?& O' [+ qset credibility-all n-values people [creat-credibility]
7 t! Y D# p3 C3 }9 jset credibility n-values people [-1]
) }7 C, k( b9 [3 b) Zget-color
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. Q+ W3 K! \. U$ J6 `0 Mend0 J& J/ s6 t' w$ p
% \9 ]/ r- \* w2 [6 x5 Y" a fto-report creat-credibility
& e. B) @# I6 I2 rreport n-values people [0.5]
" o! ~) x% W$ m/ [- t9 T. B# u0 ~end; \3 B. E& s! D1 k0 u" ^6 M( y4 l
6 D9 J/ \# ?; k+ ~+ D& Nto setup-plots
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' v* O8 P, l, u; ^set xmax 30
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% a& s# K# O$ R) T! @$ g; {7 j+ @ wset ymax 1.0/ K, {, G2 @% Z3 q; ^* J2 }# S
, r& C& Z1 e3 Q0 T+ i W& v/ b# xclear-all-plots
+ R9 G$ j+ A8 m- V1 t1 \! w2 }# t# ]. }* V, u p0 I0 F( I& O
setup-plot10 L5 G/ a$ I) l* f# p9 q4 @! `
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setup-plot24 @% u: F# _7 L& N
3 f) M5 I0 t6 j' u. r1 g lsetup-plot3
! N, o; ]) t, u' ]( _9 k1 xend
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;;run time procedures
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to go
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ask turtles [do-business]
' s: j& l; [2 \( {% ?' o2 b3 s Y* }end
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to do-business
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$ X6 f2 I( X1 w* Q4 i' o) q W
rt random 360
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fd 1
+ F# a1 ~& p c% Z" w/ b$ d6 o3 ?# I$ y' W( c. n
ifelse(other turtles-here != nobody)[! T+ t2 `3 Y* P% {3 V
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set customer one-of other turtles-here' }' }! c& A2 H2 t- h
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;; set [customer] of customer myself1 h6 u" g% w2 G: C! o
/ s% ^9 m" a6 C5 j1 s4 ?set [trade-record-one] of self item (([who] of customer) - 1)9 e; [) v# v8 l- t2 d% s0 A' V
[trade-record-all]of self, H3 T- ]( Z' s N& d
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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0 {$ {, F0 m0 Bset [trade-record-one] of customer item (([who] of self) - 1)
" N( |; @, U& L2 F3 }[trade-record-all]of customer9 N3 u0 ^0 m* z$ t& _
# R, `+ x6 ^2 ]1 Y% s1 {set [trade-record-one-len] of self length [trade-record-one] of self
0 @% j% T' m0 q9 y* Z. i
4 S2 t8 f5 o/ j% |: }7 Wset trade-record-current( list (timer) (random money-upper-limit))& K5 W1 W5 l B- j( S8 C9 _
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ask self [do-trust]- Q" l8 _8 O8 U( y0 a* g4 `
;;先求i对j的信任度$ g3 z( ^. W! T3 F6 g& \0 l- d
1 r. T3 G" y5 T9 D1 ]if ([trust-ok] of self)4 [" ~ Q3 h; t- l" `, a
;;根据i对j的信任度来决定是否与j进行交易[
2 @2 H9 I* |+ E, Hask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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Z% a# W$ ?6 i7 T[2 e' [# q8 i$ ], k! v0 j
, I% Y% X" C1 ~
do-trade* T6 y+ V! ^9 w: B
/ f8 N' p! ]: M: I2 F8 [. Hupdate-credibility-ijl, ]9 Y* T4 i" s5 ^- z
" x* O% J$ Y( [! ^0 Q8 I' i, m# Iupdate-credibility-list
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' T! m' n5 ]+ {# f, @# c& ]6 }5 V
9 U4 A _& _7 p4 Jupdate-global-reputation-list- d6 G W' q* j" X! {- t! V( w: \! i
* x% r. j( g0 c% O: R5 R
poll-class
( \* Q! A/ Y9 u) a: |9 f, q1 q
8 [4 r' ]* t2 Q" P, @/ Zget-color# b- K5 y' x+ M1 y
/ b& u7 J5 q0 S& R( j$ m]]
" W z; V2 O! [
. v+ ?8 R# b7 o) |8 i;;如果所得的信任度满足条件,则进行交易! n4 r @( V: H+ q2 \
! [( j) T& M3 e0 @
[
( x) l- L. C& o6 ^: c' Q7 m; J9 t" ^
rt random 3601 h' q; Y) i( @/ g" F( o; L, `
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fd 1/ K0 j* Q: B' ]' U) T6 O
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]3 Z# H2 H n. _4 b5 x4 @4 R( X% r
$ v9 v+ q# \( S% D# b" g
end/ I, m% _1 K/ `1 S9 Z
s1 T# E' d( D$ @% D; U
to do-trust - n. I3 n# u; X3 m7 U/ C
set trust-ok False
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3 y3 A+ Q1 Q5 Jlet max-trade-times 0; j; R$ f# a; O
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]9 o) u- ^5 f8 \ }8 r b
let max-trade-money 0. T/ E' O( M# g# j7 l+ h
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]* x; o6 k- q8 K! {, {
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
( q S- B/ u( Z' h
/ V8 O% j' ^6 H. w+ d* n& W+ j% g% ~+ A7 M8 n6 A3 h
get-global-proportion
' f4 o4 I' j( ~0 Z$ \: plet trust-value
5 ~- j4 E9 N, F y4 flocal-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/ w% `* ]/ |
if(trust-value > trade-trust-value)
( H2 P: O1 O* U3 d# r& O[set trust-ok true]
! Q/ ]0 j9 ]# F3 J/ x4 `% g- Send
1 N8 }6 g6 R/ f' ~3 g/ {" o
0 m2 b8 R6 a) H" Tto get-global-proportion' G; A2 P8 _6 E+ u6 `+ V
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 `0 v! M M+ K# e, S[set global-proportion 0]2 w& e' m( c9 I! {& H
[let i 0/ d6 e4 X( a$ }: m
let sum-money 05 }- L" Y [. }
while[ i < people]% y* m* ]" a" z
[2 {" ]0 s% X/ |
if( length (item i
2 v- f7 P' T; D( v M0 F[trade-record-all] of customer) > 3 )* I9 S/ R) o [% e1 N X+ i- h% K
[! [$ n$ J$ C6 G; ^
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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]
2 W3 \: g# f2 g A5 Jlet j 00 B3 x& l( _: k! J! h1 O6 m" H: e
let note 0
7 [" K ~8 K8 V2 o7 W$ g; ewhile[ j < people]- w1 i& T" z# p5 }1 f j% G" R; @
[8 H' @1 H- K, f; |
if( length (item i1 B: U, u" g* l% Y
[trade-record-all] of customer) > 3 )# j; E# H, M, l1 ]8 b& p
[" w7 H! I! O/ E5 }: {+ V' [
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)% s- I3 T0 R* d; s3 ?" m0 B3 J) Y
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ T8 ^- Y7 f( V/ b[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]/ r5 [ f, w1 |- L) t
]- X' d' V- [6 \; _. c' L
]* p; }" e8 H" t. k. M* G+ t
set global-proportion note
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end
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to do-trade) _3 \2 V6 A7 T' T- r
;;这个过程实际上是给双方作出评价的过程
! |$ |2 a* Q: |5 c5 W( Xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价9 q2 f" _0 k. D* n8 F
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
8 W2 R+ Y* O% O: gset trade-record-current lput(timer) trade-record-current( J+ B6 c/ }, ?5 R% ^! e
;;评价时间, M% B' u5 Y: U+ r; X! G
ask myself [
- w3 h0 Y/ D; P; h# P I6 Wupdate-local-reputation
: Q. e! d4 [4 Y1 M. M+ M. ~set trade-record-current lput([local-reputation] of myself) trade-record-current
4 o; l/ ?& d1 |3 X" B]
9 w0 J2 [ q0 Yset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself0 s: v: X7 z% Z% W
;;将此次交易的记录加入到trade-record-one中
; L% Q7 x: m& m( {! f( P9 v$ i- S; P/ @" Mset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
5 `. X/ {$ T0 P! e2 n: mlet note (item 2 trade-record-current )6 S' `+ v3 ?5 d5 k$ Y' w' s s: J
set trade-record-current
" }$ k9 w8 x) {(replace-item 2 trade-record-current (item 3 trade-record-current))
$ L4 x p% N* y5 J8 g! @ @ k4 [set trade-record-current
& J! _; \$ K$ a+ M. C; s(replace-item 3 trade-record-current note)3 e* Z- Y0 b0 i3 p
$ U* B4 A3 P2 B( F9 q
3 N, ]4 f3 f' q' u$ {% qask customer [4 x" |& M! ]! X2 w. g
update-local-reputation
9 P: m) e) w t4 bset trade-record-current
- t0 w5 S4 T* D" H; e( Z(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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) x- p5 Y% W: {7 P% o
5 A) B& O7 G0 Y: {set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
' q1 }' q; q6 [0 l" {6 b/ Z f9 {9 f0 ^* S
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))6 a" \' Z4 L$ Z; R1 J! I2 W
;;将此次交易的记录加入到customer的trade-record-all中
R4 \9 X3 f% v" N! kend$ @8 N8 p/ m) O% u
: _ o: F8 W \to update-local-reputation
: d j! `) Z% K# [set [trade-record-one-len] of myself length [trade-record-one] of myself: m* D' y, U- Y! I& U
: }6 F9 Y; K( J% n0 l4 @9 @# S+ n3 }4 Q/ R* i5 H
;;if [trade-record-one-len] of myself > 3 6 F# G5 c$ j" @. c, Z1 F% D
update-neighbor-total0 ?8 m, _; f) j1 O& Y7 ~$ I
;;更新邻居节点的数目,在此进行; n2 V8 D1 Y4 D
let i 3, f: B2 {3 H& c: z L2 ~
let sum-time 0
4 i n9 D N) Z' X4 ^; t: twhile[i < [trade-record-one-len] of myself]
9 h! i- _8 r) p. {: W[
% W6 A" q5 T# rset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
; y6 A, `& E$ d+ k8 G- s, ^! V; Fset i& C' F1 L& M$ S W# y
( i + 1)
( _" C( } s- E' l6 f]
& s' K/ ^# X) N* P* {# A8 Nlet j 3
& |3 u9 l2 d4 [) o- @let sum-money 0 m" n8 v: G1 [9 |/ O& h9 j5 H. c
while[j < [trade-record-one-len] of myself] d) F; w1 c3 `, ]
[
- A) z! W8 w# J, w" y+ wset 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 W* `3 b+ l0 D& G! J: U j' Aset j
3 d* [3 X: i2 G t( j + 1)* m* J1 z* W( |
]" P, S$ j+ Q7 @# U# H
let k 30 O4 G1 a3 _" E6 W
let power 0 F* v7 f5 U- I
let local 0
- o7 u. i |, N4 awhile [k <[trade-record-one-len] of myself]. ]' W V! i- G6 w: b
[
% W0 W1 r% l0 e, Cset 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) 2 p% E2 j/ P- j p' l' X$ @
set k (k + 1)
* i; B( a6 U: V5 N5 U6 {. W+ F]
. f- h" U' N* Q* Kset [local-reputation] of myself (local)5 I) a7 e# {( ` V
end
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to update-neighbor-total7 K k: n& t0 O$ |% f* p2 ~
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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3 }3 P; b2 m; \; d1 u Z8 h
: P/ x, Z5 t2 k2 q; y& Z( }end# Q) h7 \8 ~% y# E2 E ^3 H
+ v9 f' B7 y- kto update-credibility-ijl
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2 C7 o: \& C' p# ~. M4 L;;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。0 H( e" L+ b2 D; _, `, b/ o4 N
let l 0
: |3 H3 d0 y' V% W5 E: Pwhile[ l < people ]
( O3 t1 ~ \$ }$ r;;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
, Z3 p8 |3 B3 @- a% w. _+ [[
3 v; R& ^; Y9 a$ x7 Z+ Klet trade-record-one-j-l-len length item l ([trade-record-all] of customer)8 Z; S1 g, E1 d$ Q1 q7 D# P' q
if (trade-record-one-j-l-len > 3)
& p; h: ?1 `4 B& ~+ p0 C[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 b9 K) U& {2 N9 J6 Y8 C" n6 B
let i 3# [7 E+ H$ j! R* B: h& E% z5 ]
let sum-time 0+ @! r5 ~# m, D: T0 G& [9 f
while[i < trade-record-one-len]- }% v$ Q, |& v& S) Q8 I
[
, W) p; p2 n7 m6 N" |! M$ Bset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
' Z; p+ j/ k2 [+ s0 \- R* R. P1 Cset i3 F& n9 w% W: g9 T8 z, ?0 X
( i + 1)
5 |6 Z- ~5 A8 O]
, `; w( t$ m; A5 {let credibility-i-j-l 0
8 |6 u9 L1 k' V0 G/ S2 `, `;;i评价(j对jl的评价)6 g5 w/ K6 R& J& z3 G8 J
let j 3
8 G, |% U7 U& f- k# V/ blet k 4: p9 k$ D$ I7 z
while[j < trade-record-one-len]: ]. y. |- z8 _
[) v: ~% p# ]0 q: q9 v1 a
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
! |! y+ w2 h5 g# Vset 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)
3 n! D4 D/ ?( zset j1 p( K3 |( R- b0 v, z( n0 K
( j + 1)' o$ C1 r8 O8 C0 f, C9 W7 O
]) w$ N0 h& Z) E9 a$ ~- u6 h5 Q
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 ))
& O: C4 f' ]# i9 P
0 K' F8 w1 O: A" V5 a/ m- i' F8 ?/ u' k2 A4 V; h7 K
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))& T ]. e- m6 s
;;及时更新i对l的评价质量的评价5 g: c! j7 z. o0 N% o) K& U* f, Z
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
; J& s5 [/ @9 E" l+ l# ~set l (l + 1)4 V" l6 y9 M, p; K5 z
]1 T, H( ~* i. w) p/ O* m
end
! F" o* A0 r3 H5 g& `6 a. s
6 _2 @5 O0 C5 {, a' Zto update-credibility-list
- q* C6 G/ | n! m" s blet i 0
% D7 p" ]9 t2 @1 N0 swhile[i < people]" ~5 N, ~1 g# ?
[
0 q# J$ Y9 N! E1 B2 |# Jlet j 0
7 }+ E, M0 h: h0 D2 elet note 0
: C7 i; i% j, mlet k 02 r! u4 P. R/ W
;;计作出过评价的邻居节点的数目0 R1 x1 G' ? \
while[j < people]
# X$ z4 ^) k2 g. a6 r; u. ][
2 h h% _( U/ c7 vif (item j( [credibility] of turtle (i + 1)) != -1)
! l0 G$ M. }$ K- O" u2 M;;判断是否给本turtle的评价质量做出过评价的节点
* B3 J r D: w* j. i[set note (note + item j ([credibility]of turtle (i + 1)))& Q: y: n, {1 X1 c3 P1 \
;;*(exp (-(people - 2)))/(people - 2))]
# _1 Z/ N+ M. C& ?- dset k (k + 1)6 }. n" z$ n% F5 [1 [( ^
]2 F8 c/ U4 L7 t% q
set j (j + 1)
- t( S2 i6 ]/ k: t( u]
/ a0 A4 X% C I% ~set note (note *(exp (- (1 / k)))/ k)1 o+ s( x5 p# W: F* U* i5 B0 t8 q8 K. A
set credibility-list (replace-item i credibility-list note)
/ f. }2 q0 n4 L" ?7 P/ Fset i (i + 1)
- y& N& m) g( c6 {]
9 n3 g D/ u8 i- k* vend
3 u4 o+ j {+ ^5 ]0 z( X& v) E( |2 w5 \4 H
to update-global-reputation-list& Z# A( x/ `( `" o
let j 0$ Z+ A- ]6 x& H/ X' E
while[j < people]
4 Y! J3 d; O3 _3 ]& u[
( L8 q: a/ N `: q- n: G$ |8 xlet new 0
& f8 s1 s9 R+ U1 S0 O* E;;暂存新的一个全局声誉
" A8 C4 z: Q; f9 Hlet i 0+ O5 t; i9 S; ?
let sum-money 0
% ?/ \! f- R: q$ T; B0 llet credibility-money 0
3 S4 G$ G4 }" r) I5 v3 r$ L* p$ Z: Ywhile [i < people]
% A) t# A V7 m( O[
3 N/ t% q& Z9 s& Z. X5 A: Fset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( Y3 ]9 c4 p; R9 F* h, y$ F
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
( |& ?* G @/ i) }7 `* W6 D' O4 ~set i (i + 1)6 ?3 X' z) `: t |: S8 k
]6 t; A% _( }. k2 g D; i5 z5 b6 X
let k 0
+ O, R1 j) ^4 t+ c, O4 k% glet new1 0
8 i6 K0 }# i6 Z; ewhile [k < people]
, r, H. i" G- ]( ~4 D4 _- S[
4 }* n! Z/ ]8 E6 Jset 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)
3 @6 Y* }7 g7 v4 ?5 fset k (k + 1)! b% z" x5 h7 r! G
]1 L/ W: g* [/ R- p% E7 o* _
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) " {0 A* O, F/ o) }, q
set global-reputation-list (replace-item j global-reputation-list new)
. S. ~* z3 G% R* i9 rset j (j + 1)
4 d) j# F7 K$ N]
. X# o3 k* d1 f; U& Fend
) Y2 H' B( B* V7 g. q# G( R( ?3 |
. R/ X, I: W- u" m4 q' O" K; k: X S
. N% `/ k+ [3 T( |
to get-color3 F; u. R7 p* m1 C3 }( Z- x
3 d; |& j3 A+ @; Z) k7 Oset color blue
" c. b6 _' H, t; H/ H( c) M0 Z) |1 z! n( xend5 ^& Z% O) Z) R
I } R4 Y' i* Oto poll-class
_; u+ p, ]$ t+ I' bend4 @1 Z( f$ q# h2 P8 d. g
M( l1 ~2 y4 dto setup-plot1# G2 |4 R8 U4 v% A4 H
- n1 ?# y, @5 { T4 q% vset-current-plot "Trends-of-Local-reputation"
' [0 {+ C; Y7 S s! R1 R. C& Q0 O4 N% d7 h v- V
set-plot-x-range 0 xmax
m+ h! m' Z/ E
, s* B/ P* {% N3 y1 C; zset-plot-y-range 0.0 ymax0 R" s7 q3 c) |; n/ u* B0 e6 g
end
1 @( G( e" G2 ?. [2 A
1 _' J/ R2 d# E6 U& _to setup-plot2
! D* q! N s6 T. L# b; |% f! `% g( p) b* s# e# a, e8 |# Q
set-current-plot "Trends-of-global-reputation" m- E. x5 @' T1 R+ i
# J' i; U6 m6 _7 {' {( i; a4 U
set-plot-x-range 0 xmax8 ~6 Z$ O* u$ E$ I& i' t6 a& r
$ Y5 U0 m& G/ S" _$ D5 w0 h9 B3 j
set-plot-y-range 0.0 ymax0 L+ G7 X" L& s7 ]8 E2 }% Q2 e* i
end
5 u" a7 J! z- N7 A, V+ U2 S+ x( s
" ~% f% X! a* |; q% U# o& @% c/ n1 ato setup-plot33 I2 C' e3 [% |! }
) H$ D" _! P4 W) i, m
set-current-plot "Trends-of-credibility"
% N) u2 r' e c# s* p. D/ R& U; q7 t: N2 ^# g$ _
set-plot-x-range 0 xmax
( E! e6 y; R5 \) g0 R A- C! d9 M& ?& R, D; l) L" F: W; K% f
set-plot-y-range 0.0 ymax& Q$ S* l/ M$ T& A7 v" K
end) w- ]6 E% M6 ^+ x1 G9 b
4 \+ M5 R/ K8 L E8 A( J" Vto do-plots
" _% ~3 p# l% f3 ]: uset-current-plot "Trends-of-Local-reputation"
5 {7 r1 h% e. [, p) p) S0 ~0 Iset-current-plot-pen "Honest service"
5 n7 t: Z+ h+ r0 i* Qend
. E6 A; K& b7 x2 I" l5 ~1 G1 v8 t. w* }! z8 @
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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