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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- x6 {0 |! D6 s/ o
globals[( F! `/ E7 ]4 _# k% c7 x5 K
xmax
# d9 D' ~+ R, Bymax
n3 q! P3 Y1 Pglobal-reputation-list
0 [6 T/ F; q8 ]& z- ]. B+ x* y4 c" o( u6 l! |& z( L
;;每一个turtle的全局声誉都存在此LIST中
! {4 D; y0 F2 ^ j8 L2 Qcredibility-list3 @9 Q- T: X1 r" m# z
;;每一个turtle的评价可信度
. H' d9 l4 Z* I/ W6 r( Chonest-service: P _$ G* \/ w) J5 ?7 C$ Y
unhonest-service
, k" j& o R$ N9 h6 H1 Y1 Boscillation$ m9 k/ }& J6 B7 ?3 K
rand-dynamic# q( [$ _* H* n7 [ N
]- [& U8 U# \0 K
, s# |0 _6 a8 ?( O w' \" F
turtles-own[ k" Q/ E7 y+ [3 V* p. Z
trade-record-all
% e/ E O3 v8 E8 _$ Q" g;;a list of lists,由trade-record-one组成
% z, W' R( z- l, o% G6 q8 R7 Ttrade-record-one+ x; Q7 u5 B D5 l; g
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录- E/ x) h3 }5 t5 q* A. K0 A( l
9 H1 q& P% K1 @* i( ~$ [5 K: 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]]2 L- ^- ]8 M7 P7 W$ Y m
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]
Y6 P: n3 z# e) l M& ^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
; b: R+ O; J* y+ Q5 s7 d6 q9 ineighbor-total
$ ~; o( ]* T, J/ q1 V4 L# Y& u;;记录该turtle的邻居节点的数目
( G' M8 }: s" W8 `$ r% Ltrade-time
: G6 P7 V G, k/ A;;当前发生交易的turtle的交易时间4 S0 o' w; h8 J
appraise-give" j* K) T" w: s0 |$ G" P
;;当前发生交易时给出的评价- R" n- @5 {# A
appraise-receive
: v, i% Y1 i5 Y/ \;;当前发生交易时收到的评价
6 x0 N! a5 _9 e, Iappraise-time
7 F, _! A* Z# R;;当前发生交易时的评价时间 p0 f( s4 M6 \' |1 T4 f, U
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
) _0 g1 U8 j; X) U7 dtrade-times-total
' @# i8 U+ H& C& ^5 o j% [;;与当前turtle的交易总次数
; ^7 U, c1 o9 m/ y( G- Ztrade-money-total/ e6 z9 A- `8 p$ o6 t: v5 C4 ~; D
;;与当前turtle的交易总金额
: P" d' G' ]& }local-reputation
$ w, @5 u" `& z+ m! | t/ Xglobal-reputation$ b4 a& a+ C9 k- [" i
credibility
/ R! S/ Y5 Z' L;;评价可信度,每次交易后都需要更新5 W) N5 {" L9 f: |0 N% B
credibility-all7 w2 C/ F9 n7 F$ 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5 F0 ^7 r. R' y4 B2 d; Y& g" T$ U8 e
! m( u1 m2 \) |. f5 L( z
;;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 [6 J* \( ^ s' Ucredibility-one3 n* L d5 b4 B- T$ U- n, M
;;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
- \ H$ \4 H( B* B/ Tglobal-proportion
6 `$ U, P0 g& o# ^9 Acustomer b. ~) l6 u; f! J1 y' p
customer-no7 L* o' @! x- |, R
trust-ok* i! p- |$ g. `& a
trade-record-one-len;;trade-record-one的长度
+ `. J1 n& {1 X: A% f0 g& I]' j1 W% J4 [% O: x Z; Y- B
6 G/ |4 }3 Q+ Y q
;;setup procedure( B+ B+ C' h: s! ^' w
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to setup/ e2 g2 b$ M( m, i: b& V+ w* {
3 F! H+ Q2 n3 A# l% }! D0 Q* mca
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initialize-settings
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3 D* l/ [7 E8 K; c$ ~. fcrt people [setup-turtles]; i+ n% n: m( e, p5 y9 c1 V
! j7 J9 J# o. G" D9 |reset-timer
0 l" P' o- Q6 R* ^" G: d* H2 b+ I6 ?) [7 u* e2 @2 R
poll-class
$ f9 ^' N/ J8 P+ G
! r2 ^$ P( ?' j) d" C- Y9 tsetup-plots0 W+ y2 n/ z" v) W3 B
0 e: n, @4 T& j9 Xdo-plots
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7 ^: Y! e4 }! d/ G; Vto initialize-settings) ?0 q& s7 S4 I4 t" H5 N' l
6 \' j% |+ D0 h/ ^set global-reputation-list []4 i, \$ n% A& X+ j" m2 m3 d
( A D q! S7 F6 g
set credibility-list n-values people [0.5]
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set honest-service 0* E4 {5 R3 P& z; L" L
. E9 N5 m- h1 ^
set unhonest-service 0
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% ^, S" `$ Z, g( i, tset oscillation 0
1 t: a- d0 C. D) l z* ^( M. A' m9 |4 c8 p% p$ L/ ]4 @1 i7 ^* T2 ]7 g
set rand-dynamic 0 S0 w3 s8 n! A4 Y+ X9 C
end
5 h7 H) ~/ F. \3 ~) [7 ]" k2 C! C$ B8 i7 q
to setup-turtles
b% d* y0 t1 r3 h+ @set shape "person") Z* Y9 Z$ X" S; d# y" M2 ? U/ s
setxy random-xcor random-ycor
- J# g* d3 Z/ i% X; L) Wset trade-record-one []
; k" f8 Z$ M. C' |+ i) ~5 s
8 }$ `8 z8 Z5 x% \1 k2 ?set trade-record-all n-values people [(list (? + 1) 0 0)] ; ^5 ]3 G7 `: M4 m* `" h' P
$ z6 Q. o2 O% |set trade-record-current []
. t$ a( j6 b# U2 \ S5 F9 gset credibility-receive []" A7 N6 [& @# s7 i2 L+ f7 T3 V, a8 ~
set local-reputation 0.5
* a, L( j& P* V2 v( w1 rset neighbor-total 0' ^# G4 S* M/ n6 W, s9 \* j& g
set trade-times-total 0
+ {; l+ H( [; ]1 c8 I, V5 Jset trade-money-total 0
6 J- N& f2 ~3 R8 eset customer nobody/ Y6 L% D* a8 z: W
set credibility-all n-values people [creat-credibility]
1 Y4 y+ S9 \# s: i, yset credibility n-values people [-1]
# o8 P. p+ E- R. Bget-color: k/ }5 E8 `4 U: Q
% C+ e; B# q iend
8 o# R. M& d9 E. _+ E6 V3 r2 a% U% k$ z, X \1 ?6 r4 Z: e: x( u
to-report creat-credibility
$ o7 U( t" B6 {+ O: `/ L( I& s$ ureport n-values people [0.5]
( q5 ^8 L X* Q, Z6 b6 }+ oend
: g8 Y! Y1 [$ Y# M, X) k* ]6 A, c f* g
to setup-plots, z& G6 e+ L0 g! ~2 [" L
1 b6 ?9 h8 Q0 y, T! h8 v9 V9 qset xmax 30
! T1 f z- P( ?" ^) S/ U+ E
1 n. X! m& Q8 w6 O; j: h! E6 [2 q, o4 Sset ymax 1.0: g; k: ~0 }0 Z8 Q
$ u' ~- k3 g! h4 E& M4 l2 tclear-all-plots
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setup-plot1/ E$ u9 g! @& b' }; q7 G' b) p' L/ F
- u1 ]' @7 q; H! e# Xsetup-plot2
b' o* E ~% x# A: p
: U) E/ f, }" ysetup-plot39 L; w7 h5 t M7 L) H
end
% {7 }7 ^1 Z) O+ B2 _# d ^' ?5 l
# ]' @8 ^' Q9 Q. r;;run time procedures
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to go/ `; a% Y/ N* |- _) G* ~& d7 X7 r' D
3 @ |0 p6 \# Y( _& d+ Sask turtles [do-business]
; |, g% S& V3 w* ]& i6 hend
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to do-business ( G, E/ r* M9 U* y: ^
- L$ _9 Z! S# s% E. `
' [8 M5 Q- b4 n/ Zrt random 360
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fd 1
; G# t! ~0 [. Y5 V4 N: d6 E7 E% H9 k' }0 f! x" R4 A! M, }# k6 _ t ~- B
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here. s8 ^. e- q3 T6 u
% ]" G. l) M2 ^- M7 |" {
;; set [customer] of customer myself: v7 _: E( B, p& T
8 W1 x; S0 T: k9 K; E; I" H8 b! ]set [trade-record-one] of self item (([who] of customer) - 1)
/ A& s5 U* ]: z9 I! d[trade-record-all]of self. z: S& n- K6 M: D# {. \
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)9 R) @; A" O% h& V, A d( @; l
[trade-record-all]of customer
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set [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))/ A# ?9 B3 M" d, k5 G( S
# v$ l- I' o5 b7 A/ m
ask self [do-trust]( R C% X$ ~% C/ u( r
;;先求i对j的信任度5 ~, v7 q+ Z- c: h' C* k
0 Z. z T9 z7 b- v0 tif ([trust-ok] of self)
( T D* `) x" d5 o, M. I) q( N: B;;根据i对j的信任度来决定是否与j进行交易[3 N' u) }0 V& l# t& T% b2 Q
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
! R( `6 ~) d0 j2 r* A8 }! |0 o* S; m2 b3 d8 Y" z! H N) R
[9 r; ~1 h* j& v( K
7 X( v/ B& s( S8 [do-trade
' G7 q" V! p$ ]# V, d% ~& e) P% H7 A. F1 G
update-credibility-ijl* v* z" d% e' P# \" r: Z
6 T# ~9 _% |3 H# c, D, E5 fupdate-credibility-list
# Z; s0 `! t7 ^8 @
7 U/ g7 ~. m+ i r; _) H( T% }
5 L" D! u9 _0 K1 Z- W, Yupdate-global-reputation-list
* }' z& Q" C( c( s2 n6 z9 z! a7 a* [! t- p; ^
poll-class
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get-color, q. k5 c. ? d9 o7 I9 Y7 k: c
. r2 h' j5 I% \# N
]]
. I! A" [* T# P/ N: w% M0 |' x! l' W2 P# b# _; }
;;如果所得的信任度满足条件,则进行交易$ b' B6 r3 _! A- T
5 V8 q7 u& K% @; \[
" g( q2 G4 j) d; m$ d7 _# J/ V! O+ K- i9 D) W2 L/ ?
rt random 360
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( M8 ~& R& T$ Z5 Sfd 1$ }) l2 B( D" e' p9 G
7 e. d) Z U: d F% \
]! Z6 H0 \4 ]2 U. n% [
# J4 }2 j! d; {, ~
end& c v* [; E3 O0 ~/ l) Y: n6 ~
F H6 o- ?6 o8 {* a }6 [/ Qto do-trust $ M( W3 M% q7 A/ ^
set trust-ok False
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+ J9 j! H- g* H- plet max-trade-times 0
, B- } Y/ A: q9 tforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]8 V7 i9 @& e% o O/ ]
let max-trade-money 0
h& y9 s( _+ g! U3 A1 oforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; V6 f0 \ e$ u, R/ E
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)) y* G6 @' _) \( C- B) @ ^# C
# V- T& X6 s Y& B
3 ]4 @6 s' k4 B( x2 D$ Y
get-global-proportion
! ^+ R! Y9 C. g4 @6 Slet trust-value
3 x( W: P6 I1 t( d6 [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)
3 R# N5 i5 I' G* V6 sif(trust-value > trade-trust-value)
. B! W- ?( e- }8 v# G& |0 C) t: y[set trust-ok true]9 X" y3 V' ?# Y4 f/ W$ ~
end
% F6 V5 f T b) m
5 T* n. w- l6 ]; v- f/ fto get-global-proportion
1 U' J$ H% Q4 N- @2 Y# r ?ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)# i; s) ]9 c8 n4 C/ N* ^( e! M) ^
[set global-proportion 0]
3 V8 H8 t7 s2 `6 F4 X[let i 0. B P* O o- I5 I. O7 r' a
let sum-money 0
$ S E! V5 @" Z3 r' e/ y. c$ G3 s7 swhile[ i < people]8 m0 z$ ?% }6 \4 {$ a8 H3 Z$ [
[5 [3 i3 _+ L% r6 [
if( length (item i, w( ~0 T9 i: R# B
[trade-record-all] of customer) > 3 ); b4 M! k9 u, K& s0 X! s% v
[% _* `) x+ M3 y% `4 r
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))( R5 K: F0 v( p% G* h) b: R
]
9 z( X! s* S' P2 F% y5 P]
/ C2 F7 Z1 r, B7 Jlet j 0
9 F5 B' r2 l+ I( u9 T3 hlet note 0" u1 w$ k% e# c( S
while[ j < people]
. U" q+ Z" E, v[% h6 {, B7 @2 b
if( length (item i; J- K6 T- D6 q7 n
[trade-record-all] of customer) > 3 )5 \% \+ \! J4 j' y0 V
[7 V4 M: S( D% n9 u
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)" m2 q0 [1 ^5 Z$ ~/ H9 u
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
4 `' X- ]1 _! @+ b" V! h: r[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
2 |4 D. _2 D, G1 s]" j. |- z: \* A. b N
]. m# C% C( w$ B3 X9 P K1 Y( }
set global-proportion note" q$ N5 k) P6 n; \5 ]+ d) I% J
]6 Z; H5 g) l o) _# `
end! F, A# G! k: N$ J
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to do-trade: W- ?" M) u4 R& F; O
;;这个过程实际上是给双方作出评价的过程
% v; V" D6 O0 x A2 Rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
$ v7 I" Q9 w8 p. Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价! f8 C4 Y( L- S
set trade-record-current lput(timer) trade-record-current3 X h3 U5 r1 d* k+ g
;;评价时间# ?- ?# d' n1 F, U" c! s0 P
ask myself [! K9 p8 F X; _* t) | L
update-local-reputation
7 C8 F" l/ ]5 N+ cset trade-record-current lput([local-reputation] of myself) trade-record-current1 D$ _" y8 F. C
]
( G ~/ T6 ^0 Z+ _& {set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
1 J, _. C% {; e8 _9 \' C. K;;将此次交易的记录加入到trade-record-one中: f) b/ X5 t, \/ J
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
h- l4 l0 e3 ~$ l) I+ m1 @9 Olet note (item 2 trade-record-current )
% q# V' g3 } [; w1 \set trade-record-current
) e) U* p+ W& v9 b% m(replace-item 2 trade-record-current (item 3 trade-record-current)); g; J; e" z0 Q8 {. F
set trade-record-current
+ ^* P3 r0 P9 o2 T1 \- b+ K9 V(replace-item 3 trade-record-current note)
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, |& ^, z' v7 dask customer [
9 t2 d0 H4 I5 J2 ], U! k4 yupdate-local-reputation! t1 `+ R% Q, h$ x0 I2 t
set trade-record-current
) x, ]! _, S2 f1 A, @0 z(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
* x' e h! H+ ?8 z1 S$ _]
3 V8 v4 V; N8 N% z/ J0 O& O4 Z4 H) b g" D5 t
% ?; N1 B- B" ~4 P+ e; f V3 rset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: v$ U* H# }- \1 G7 [# b* k
. [/ |" P: `- X$ n4 ^
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))( Z) [5 E" o S/ p
;;将此次交易的记录加入到customer的trade-record-all中
: g2 R0 i* \$ b' l/ T* [+ [0 [. I% Jend4 ], c8 `5 I6 c0 V
" d+ y5 p7 Y& V/ M+ O1 qto update-local-reputation( d& c' B q4 w- d8 |. [
set [trade-record-one-len] of myself length [trade-record-one] of myself
; Y2 c7 `& R, G' u+ F. R2 ^
. H/ m( n V$ t$ T. @+ \( H
3 e* P g. @3 E0 p;;if [trade-record-one-len] of myself > 3
$ U/ @+ W4 l# A' b3 ]2 p, Jupdate-neighbor-total
" ~% A' j5 F6 E3 y;;更新邻居节点的数目,在此进行' K( L' @3 a, P3 {# H
let i 3
1 K2 h5 {( n6 O- B7 dlet sum-time 0
) s/ y/ [6 Y" [ x* V$ vwhile[i < [trade-record-one-len] of myself]
; k1 E, X# d! P+ a& C0 a+ n[9 {! P9 v- G# A3 s/ K
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )6 M! @1 ]8 I7 M$ ^
set i. H4 [6 U- Q; Y$ l' ~
( i + 1)
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let j 3% P' c# t# F% Q6 J/ ]6 r. |
let sum-money 0
8 E( o+ P; S+ Qwhile[j < [trade-record-one-len] of myself]
2 O0 w. Q- T' j1 L; X, a[
& T. W) l1 q! p/ S' Z4 ?7 vset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
: c7 z" [( [% L! e8 Xset j& H$ W6 C7 k! k2 W0 r8 K
( j + 1)) q" W; {# V. ^2 E# |
]
' K5 y" e5 m9 t3 ]# ~: z# F) p5 Olet k 3
/ V- s0 ^! ?8 Q( N2 u2 C2 E% qlet power 0+ \* s1 r6 c$ } R6 V# H
let local 05 N4 H' _% z0 Y5 \
while [k <[trade-record-one-len] of myself]8 S3 g8 s) y2 `; ` `2 k
[; }, X& b/ Q0 _; x! M1 K6 l
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) 9 ?; L, a# ~1 P+ w3 N' z; C
set k (k + 1)7 y- i; J, \. O
]
& M, k# g) v0 Oset [local-reputation] of myself (local)/ i: D, z* I1 c* _5 w
end' c4 i5 e* S$ ^, Q6 N( u( N
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to update-neighbor-total
% [1 z: ] B# _' L8 s1 ?3 u, Y5 n
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
1 D3 B4 H! X0 C) h I( L
W3 f# l- ]1 l7 x3 |& nto update-credibility-ijl
# x7 G( S6 v( |& ^- `3 F3 J1 C- P, A% k: G/ }0 Q
;;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。
* m9 E$ C' L& G+ f/ ~7 d7 plet l 0
, a$ T5 `6 ^# Z( k' e& G6 d! q' A) Wwhile[ l < people ]
: i: \: _ z3 p9 _8 S z;;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
. I5 |' q1 Z8 b, q7 W( J: Z[4 T* z* _+ d! T, ^- J
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; O( {0 s2 K5 k* s cif (trade-record-one-j-l-len > 3)
9 a3 O4 j- _8 p, n$ W3 ]5 X[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
) I0 d7 M4 e% x6 }let i 3
; ^4 }5 {2 A" Q: s1 a6 vlet sum-time 0
( b; u; r2 M2 d. f0 b0 Pwhile[i < trade-record-one-len]
) c7 h" g2 ?9 k[
; u% p2 b% {5 j! @' V! `set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )5 }( |- A; b# I' p
set i; {5 v( n' f! [7 V/ w) Q
( i + 1)
# i9 z; o, M" f; |1 V]
/ [- J$ j/ \8 _4 r. a Alet credibility-i-j-l 0$ I8 t J$ W# ]; e5 g- b
;;i评价(j对jl的评价)
( {: O3 q, l ?2 K) @8 ylet j 3: |! z& U, M- s
let k 4: {& u. D L$ I9 ?# h4 z5 o+ ? t7 l
while[j < trade-record-one-len]' t# I |# Z# r% B
[6 d% S) u4 s! a; \+ \* R
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$ k) ~" n$ l2 H6 y$ [* Y: y# \3 K% o
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)
& i& R4 q( V! R% s; y3 a8 y( w; xset j
7 ^4 d6 W' M. h# N6 D( j + 1)
2 J9 @9 ], J1 ?( m/ `1 ]]5 @! o* y+ Q& H: S5 [. 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 ))
/ _: n- w- B0 U. i
2 x5 ] i! A5 A5 T" ]3 ~' d# M9 N# H" f+ ^( A+ c$ U
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); m9 S" _% z9 w* f) Y, q
;;及时更新i对l的评价质量的评价8 ^0 m- R/ e* i n. ~7 v: I
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]: E0 y' w( z! R$ E3 \) O" V8 D$ c
set l (l + 1)
& E2 T7 Y0 N: K6 A. e. {]/ z; I' J, ~* z
end4 Z5 o( o& w f2 \4 T/ _
( N* r( A5 s6 ]: z) a) C
to update-credibility-list1 q7 N; X6 n P% J: ?( o+ L
let i 0& e# e" S, k2 f8 n1 ^
while[i < people]
4 p. ^9 G4 y2 A4 z[* ^( x5 t$ b% h3 m# E
let j 0) n3 e3 C8 t' x4 }' w
let note 0
, f& q7 o! [4 ylet k 08 G5 m* N: n9 s# K9 ^9 `
;;计作出过评价的邻居节点的数目8 X0 ?7 k5 i4 W/ A
while[j < people]2 J' v" G7 H. x) |# u% V. t
[9 f7 |! ~( x5 ?$ F% p! ]
if (item j( [credibility] of turtle (i + 1)) != -1)
+ k; _) B" T, d9 _;;判断是否给本turtle的评价质量做出过评价的节点, Q* T! ~& R+ m( i- s) H
[set note (note + item j ([credibility]of turtle (i + 1)))
, ~. h. M: D8 M4 N# y# r;;*(exp (-(people - 2)))/(people - 2))]
; C- J- D: u G4 Kset k (k + 1)
% r. d; h4 E$ S0 k; x]
1 A4 K2 ~& ?7 X- ^2 n: Q, u4 yset j (j + 1)2 @) u8 ^% d4 c: c
]
3 E" ~& K! c( e; a! G, n7 tset note (note *(exp (- (1 / k)))/ k)0 N j+ o6 D/ t0 R% P, U
set credibility-list (replace-item i credibility-list note)
, m- a9 K+ v, V) F5 Wset i (i + 1)+ v9 i. ]+ s2 ^: Y. d
]
# ~4 }( t3 C6 @: Xend
# }! a. E' }3 [2 X d* h
5 Y# X/ i6 F! g; ~9 Ato update-global-reputation-list
3 w) L3 h' @9 Tlet j 0
% p2 g, G$ l, K& B$ D; Pwhile[j < people]
6 r' c/ y7 U1 H[; d' s6 X0 @( u/ s3 l- O
let new 0
4 f. \/ ?; f; \) E7 J;;暂存新的一个全局声誉. y: x: w7 y: @) Z6 h2 B
let i 0
; N0 s) b) Z2 olet sum-money 04 H6 w1 x s5 Z% L. G5 ?. s& g: Z
let credibility-money 07 V" q) W+ D I7 y. j
while [i < people]6 P" t$ _6 \7 B {' y
[- s$ U' p4 u9 {, a/ m2 X* x0 ]/ ~
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
8 L) S7 _9 r) a& X4 B0 ]set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))" _9 ~: |% H! s9 `& G8 f
set i (i + 1): N- d& G$ j% u. o, J8 t+ W( _1 I% a
]/ N) t6 }) T- l, {# B0 u
let k 0# G9 \* z& S, [. B( B
let new1 08 Z4 A" a, Y/ N: e$ d* f9 E
while [k < people]8 ]% S$ s2 Y: {9 J( I: Y6 Q
[0 o# p. {8 p( D, T7 ?8 k
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)
/ O- E! n/ X6 z9 R; ]set k (k + 1). E# l; b. m3 n2 a, E7 g0 ]
]
! U) `$ v6 T' n) x' S$ Y/ q Qset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) / _, h% F9 V. m! f, W
set global-reputation-list (replace-item j global-reputation-list new)- u3 G+ U6 ?. S+ m* C
set j (j + 1)3 y+ `2 S# f1 d1 p' B2 V1 }' H
]9 d* l+ m9 U' i* c9 w
end
0 N, \. u4 i& I# W* x6 s' H/ R
4 y# Q% h5 a4 o+ ^, X. I( [) J$ E( E' C) n" ]/ X& H" r* l# R
4 v# N3 w" u$ \2 ?
to get-color& Z' j/ c. h: Z$ \$ V" i5 M
5 g. X+ Y8 L# L8 l/ E
set color blue/ f. C1 \2 G' V9 X! E" u2 O
end
4 r) w2 N6 P7 M* p4 U! W# Y) C9 l, B# a. B* Q& {
to poll-class
1 {3 w$ r5 l1 O" ?* M7 {' `. P/ Rend- S" E* L! I) H+ k5 V* n$ e6 `
% {" p' c% t! \# @" Sto setup-plot1# m& i# U3 E9 n7 }
2 G9 y* Y% n% Pset-current-plot "Trends-of-Local-reputation"6 r# Z% V, Q6 u# ?
* _0 ?% c' l9 L$ a) {3 T( g5 X! v' |5 Dset-plot-x-range 0 xmax
# w3 F1 w# L3 E- L% C: D( d) i* Q& {* ? ^% E
set-plot-y-range 0.0 ymax5 ?9 [+ A7 D) Q
end4 L# e' p2 E7 \( O
6 ?/ @/ |: E) k: l
to setup-plot2
* u; Y5 G4 Y9 [, P& j) c9 v0 e! v4 K
set-current-plot "Trends-of-global-reputation"2 p& O0 i9 Y- F$ [9 @
! z" f6 f: Y# Z
set-plot-x-range 0 xmax
( |6 I! O5 l, j$ S
' {8 e8 P, Y' k- X( Dset-plot-y-range 0.0 ymax
5 `+ p2 p+ D, P7 zend
2 V% n" E- e( l" p7 @# q, ?* r" ?' Q, J A& t
to setup-plot3+ i' p e; S c6 W
* N; w5 X4 f* q# w% C
set-current-plot "Trends-of-credibility"
& |$ j$ F2 v/ q+ a! C. @) u! f) x( Z2 T' \1 [' e# I: i" \% a
set-plot-x-range 0 xmax7 [9 ~/ f- ]; y. Y0 P3 v5 o% i
% i& Q) Y$ w/ ]set-plot-y-range 0.0 ymax7 T5 p5 N: I) k( ]/ W
end8 d ?7 A+ A1 w" h v& X
" h( I: Z1 n" M+ U
to do-plots
; Z. ^9 R9 y0 jset-current-plot "Trends-of-Local-reputation"& Y5 z/ p+ {3 \- ]
set-current-plot-pen "Honest service"- E- l9 [/ n5 h
end
- N {' r: t, s2 {* S" p% t; D' d( }# V7 u, d" Q) C7 a0 `
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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