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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 e3 M h; G9 i9 A& c ?/ Iglobals[$ I1 W6 S# }1 l, b
xmax
" O' O# a# M8 z1 }" symax
' ^, \# y; u4 t Pglobal-reputation-list4 ~: N9 W, a8 Y, y( x0 b
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;;每一个turtle的全局声誉都存在此LIST中/ b# V! z/ |9 r, E
credibility-list4 f5 |0 R- Y% q4 B& U
;;每一个turtle的评价可信度
) f& a, V- o1 A/ g* p+ p, Ahonest-service$ |5 l# t; C! z
unhonest-service# B6 K8 l# [4 O! b: Z4 B
oscillation
) s, Y3 B* o' T3 k1 y! frand-dynamic$ s$ H! [# w9 E& l2 d
]
+ f( X) L6 @. M* S4 V
: O& d; ^, q0 v$ E/ l; Jturtles-own[2 @* J* U5 o Z7 w
trade-record-all
8 Q. X- z5 V' r9 `;;a list of lists,由trade-record-one组成$ r0 E: T4 p* z0 h- I
trade-record-one
1 L5 K4 \$ V% K0 j;;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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5 n+ w1 q' }: m;;[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]]
& v' Q% l3 a2 otrade-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]
4 k2 t. y3 d3 r9 rcredibility-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list1 d+ ]7 T( M1 s. t e O# J9 ~
neighbor-total" Y2 a/ B' ]/ Y S: Q
;;记录该turtle的邻居节点的数目
1 a# G( R. W: }- R& @trade-time, o* c0 @1 S! \) C$ N8 Q9 e
;;当前发生交易的turtle的交易时间
! j: m6 E3 r$ `" P+ t. ^1 lappraise-give7 Q6 u' u. q, w% ^% Z
;;当前发生交易时给出的评价
2 a! `- i* s5 `. ~: Bappraise-receive. u) }$ M1 V- M9 p
;;当前发生交易时收到的评价" X: Y1 j5 f2 x3 ]' t7 I+ o x( X
appraise-time& M; N& m! O5 z$ \( Z+ c
;;当前发生交易时的评价时间% {: t, M7 N" I' k @% l# z0 P
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
# F4 G3 E! |3 mtrade-times-total
9 |( J- p. r0 N$ Z _2 ?4 q7 M;;与当前turtle的交易总次数. \: ? V8 p4 k% N* |: q5 n+ S
trade-money-total! ]$ e+ K. w- |+ X: Q" [
;;与当前turtle的交易总金额
( B: |; S" ~7 A& Olocal-reputation/ x, f$ q) ? [/ d3 q) M2 Y
global-reputation5 } o& R6 O. ?/ e+ e# r
credibility
6 w7 E/ s0 Q5 ~) c6 n, i;;评价可信度,每次交易后都需要更新
! ]* w5 {# E* q9 q8 }credibility-all; I Z9 v5 P3 u2 q4 [ t/ d
;;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
3 t2 C0 p6 ~4 C4 L9 [
: V4 `9 K1 ~* Z" O% l J;;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
+ A6 L1 @; d- o: L$ Kcredibility-one# B! ~, r3 ], B- u9 G
;;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/ j$ F- S" H) @! L( i4 ~
global-proportion+ k) D/ Q0 x& Y; B6 [& @- E) ^
customer* I0 o0 j; I3 ^! V+ G) F
customer-no
2 Q' ?1 v+ k. |- w0 d* i4 rtrust-ok
, J* @, ]# @( e! z3 \: H6 l) _9 A3 Atrade-record-one-len;;trade-record-one的长度 K8 X) S8 n) M2 M
]( _* ~1 |, s9 l6 ^! ? s; I
8 A0 ^! l+ {( B) T
;;setup procedure
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4 `* F2 T0 Z/ @7 H4 c, M3 ]8 Y/ R ato setup, g6 x& ~! n% R# _, P* [
# y E0 |9 [! V
ca
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' o0 f2 |) U' b0 c: Einitialize-settings5 ?& Y" u' i& m# K% l2 @1 P
" P/ h7 K5 u3 `: vcrt people [setup-turtles]$ @8 v2 U3 I; D8 r$ E2 S* p
$ U$ ]- O/ J) v# t5 ?2 z1 v+ preset-timer
3 ^) Q' Q5 C3 A2 f$ `3 |9 j1 Y. g+ u0 `1 m7 {
poll-class0 }* _- [3 ?- V. X
8 h$ O) U4 L; m4 Esetup-plots
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do-plots' o ^! J* `* w0 _" v/ n4 m S
end
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L% y. k1 i/ Y. {to initialize-settings$ d! \3 E0 I7 s1 k. j3 `
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set global-reputation-list []
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6 [1 w- @9 g! k7 ]8 {+ ]/ v+ aset credibility-list n-values people [0.5]
7 {8 k9 {+ K) V( S+ e( q7 j
9 O3 {2 k/ i; {; e: I( M; eset honest-service 05 c ]* J6 K n# Y" [
) f3 v4 s! U. Z1 ?# fset unhonest-service 0+ }0 y7 C& K) h- M e$ P
) [4 \# r1 u- j; v# Pset oscillation 0
; {9 D a% s6 A$ u, _. ^3 ~" {( ?7 V, X- [6 d, k, i
set rand-dynamic 0
7 f5 i/ T, H! |& Gend- j4 P9 Y$ Y1 p5 n. t* v
' ^1 ?. n9 V9 N, t p4 ]3 mto setup-turtles
9 K+ A, w6 |/ \8 B- Hset shape "person"
0 t' o7 b$ @6 z' w3 lsetxy random-xcor random-ycor
, Z& ^$ c) ?) X. D+ S5 Fset trade-record-one []0 \ O F9 V! E7 t! K& E) x
2 l3 `& I7 O$ s. Vset trade-record-all n-values people [(list (? + 1) 0 0)]
( k3 g+ D! r! V, k- s
) e5 ~- _* J1 Kset trade-record-current []
! r6 }# J4 G* \5 m/ O, w' g" _' vset credibility-receive []
) f% u& ?% n5 U: k G( Rset local-reputation 0.5
. n( b, D+ A3 D0 }" u' G5 xset neighbor-total 06 y! B1 t& s4 L
set trade-times-total 0
4 l1 j" a% y# Uset trade-money-total 0
) ~ G' l; r; [9 xset customer nobody
$ T0 x2 j. D: V7 E9 X- v$ M! Mset credibility-all n-values people [creat-credibility]$ a+ v' I7 q9 z# [" P( x
set credibility n-values people [-1]2 \& x. W# D1 o7 C z, f
get-color8 V9 | h! W: ^* B
0 C- M2 z/ f" P5 ]end2 X% R' o$ h; M# `' w. y- D
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to-report creat-credibility4 K9 b' `8 \; a
report n-values people [0.5]9 k+ y: y. p3 y" Q; Z( p) k
end
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/ ?+ K; i0 y& _( V4 F6 q, h. Vto setup-plots5 K8 u! C+ k7 ? z
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set xmax 30
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set ymax 1.0# g' P9 h1 A3 ?$ }
" ]. E5 I3 U& }% A* p( ]clear-all-plots3 {1 ^/ o( o, d' W# y; n0 ?$ U
2 x2 K9 T- O6 _' q0 a" t! w \- usetup-plot1
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setup-plot2
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setup-plot3
3 T c7 y. Q" K' Rend
9 L Z' F0 k% e: A" J8 t3 u1 D' D- ]! v/ x# L( ?8 m
;;run time procedures S2 d2 |. O" ]: x2 u
: a, ^0 D( I5 @" i
to go
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ask turtles [do-business]0 U4 e' u' C9 L6 f
end# k _4 ^! l$ e$ @5 w2 r0 H8 F3 E
: t% U* h8 W2 j4 A- b
to do-business 6 k' e- x1 a( }; U3 p7 G
5 w( b( f7 u4 V* a# x3 F/ F- W- R% c( D5 f d
rt random 3606 y5 V4 v. K. P" x0 m+ G) L" a
9 U4 i1 [1 n* x3 ]
fd 1# Z2 ]% E( A- q% \! N: Y8 c
2 _( v7 j, X' m/ ~+ q( ~! c
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here) }% `& B# Q7 a# U+ S
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;; set [customer] of customer myself6 @4 t' s9 W9 n% w7 t
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set [trade-record-one] of self item (([who] of customer) - 1)
$ {+ ^5 D) N, u# O# j" D- ][trade-record-all]of self
9 }3 ^ `( |. }' [# ~;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self( f b$ T7 a/ N0 x0 q5 ]7 B; K" M) T7 b
1 U+ j- Z+ @" z% zset [trade-record-one] of customer item (([who] of self) - 1)$ F2 _. E4 n q
[trade-record-all]of customer
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8 w3 a' v' y1 |set [trade-record-one-len] of self length [trade-record-one] of self
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7 S6 P g3 Q" I7 v7 n: H- Yset trade-record-current( list (timer) (random money-upper-limit))) V/ _& G ]9 K* U+ ^- L6 y
# D5 I- X+ p# O" Qask self [do-trust]
; A, q$ U6 j( ]- o" D;;先求i对j的信任度
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if ([trust-ok] of self)
2 l- m' }2 u' R7 u9 |7 ~- b4 s* F3 t;;根据i对j的信任度来决定是否与j进行交易[
8 b1 M+ ^+ Z( `8 k3 Mask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
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do-trade
3 N% J0 K7 X( l n* {& {
5 A2 [# O/ X4 o: X6 fupdate-credibility-ijl
4 O/ v; H; F6 |# K- `, C
) `# j. U( h( m& @# ^8 supdate-credibility-list
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1 j6 h' y& E1 N- P, o7 U, {3 _3 s
2 r2 o9 B8 d" oupdate-global-reputation-list# ]8 T8 Y1 {) C/ O( m' h
+ H$ a! L! N7 L) Hpoll-class
/ o$ z( v3 L$ x6 O* r* ^9 D" y5 H0 V1 g: b5 l# I: J
get-color, R! y( W4 k1 o7 m$ {! X$ f# d8 p, d7 ^
% Y5 h/ Z9 c+ a2 a]]
7 ` f& V9 h- [, f% E' G# g3 ?' @7 X! D7 ^% ]( g6 Y/ j7 O
;;如果所得的信任度满足条件,则进行交易
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[
2 q1 Z- C+ e$ m% o! B2 _2 s# r
* \! S' r4 M9 Jrt random 360
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fd 1( |) K; l( s$ p- k8 f6 N1 ?4 @
9 T! |0 }: W4 s/ V+ `7 O
]( C4 W- R) t4 L7 _
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end
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to do-trust
: s- A5 Q) t, K' A) Z4 [set trust-ok False
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/ v! s( R& Z' H* H2 \8 W& ]let max-trade-times 0) y5 M$ @$ [2 j% ~- H
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
* f" F2 B& m9 Y0 [8 Z7 llet max-trade-money 0
( J C3 y' F6 W. T2 w5 U. p% Sforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
. [9 L' ?: p4 w$ q, ]let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))$ g$ @" U& ]" s
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get-global-proportion4 ?) ?3 q' C0 j
let trust-value
! t9 j% g) C5 k, R3 ]1 q. glocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)9 I6 s- T, E \
if(trust-value > trade-trust-value)% v, ?; Q( N6 H# U, Q
[set trust-ok true]8 _4 r p J q7 A- {& P+ P& M7 b$ }
end
7 d( G ?. x+ V9 w' b; q' p
% ~3 t( N, I& [to get-global-proportion
1 c: U) I* v0 X* g4 |$ p# x" difelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)& |7 ~, T/ M7 G2 L ^
[set global-proportion 0]
) [3 T w6 p% g[let i 0& A2 ?- W# D* r4 K6 f
let sum-money 0( m5 ~6 T. Z( R+ }2 R- [
while[ i < people]
* H" g: N2 @- q# N/ g[. a* V7 N; M' e3 t
if( length (item i
$ m3 V h; \, b2 k3 v2 ?4 ~- E( l2 Y[trade-record-all] of customer) > 3 )
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set sum-money (sum-money + item 2(item i [trade-record-all] of myself))% s9 E0 ?% C! L* u( c* e2 b
]( M1 S {4 `. ~
]3 \ A8 q# ~$ N
let j 0) I$ f6 Q/ R# f3 J
let note 0
( M1 Z" R4 |: M, b: dwhile[ j < people]6 {1 C7 X3 A% S2 l6 @0 i
[. ^( e4 D, V: R ~% @2 U
if( length (item i" y2 P0 D+ [$ v( d+ \
[trade-record-all] of customer) > 3 )
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ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* G9 m3 R6 k$ _[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' ^% l; o# I- _" e0 ~3 e[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]# Q& I+ P4 n6 B; M/ i
]% D S, K, O9 v0 f1 K
]
5 p9 }+ C6 O \* @set global-proportion note& x: k4 A2 X6 u4 k9 X* p. i$ I
]
4 l0 T/ V% s6 j7 C# A f0 a* \! oend
4 p, m h1 E% ^8 S t
7 H1 W4 {2 ^ h5 G& _to do-trade9 T/ I$ e8 ]: m' I n; k
;;这个过程实际上是给双方作出评价的过程- v; M8 c1 ~. \- U
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
( ]. K( V8 ]* T; z# Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( c: y0 y) _4 B6 T+ s; G
set trade-record-current lput(timer) trade-record-current7 B3 w& I" C$ i7 G9 x
;;评价时间4 o- d0 ^: [) h/ I! g5 f3 L, T
ask myself [
" h% H; V6 p& S) v' N& Qupdate-local-reputation
/ u8 G/ ^$ w) o4 z+ x! z" aset trade-record-current lput([local-reputation] of myself) trade-record-current
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0 K$ }# |6 g% U9 b9 o& l# Iset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 S. |4 n6 ~/ z6 \6 s4 [
;;将此次交易的记录加入到trade-record-one中
# d8 z* e. |% ]' qset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): U' V2 ^7 K) @
let note (item 2 trade-record-current ): ?9 p e- G' B7 e" K ?
set trade-record-current
% L- Z6 c) D+ k6 R(replace-item 2 trade-record-current (item 3 trade-record-current))
9 \4 U8 G% y4 t( G, Mset trade-record-current. ^' m4 ~, |8 d+ s2 J" K/ j
(replace-item 3 trade-record-current note)
5 ]' p/ o7 U- A1 {' ?0 u! I9 c
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2 r) X4 c8 K* q, n( L4 ?# task customer [1 p0 z; p. A$ H5 W2 g1 _9 j& b
update-local-reputation, q7 K. D$ Y- |2 u. Q/ K$ _5 ^
set trade-record-current- i+ ~% [* r( L; q; n
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
( ~8 _) a5 i& }0 v2 [% @/ j: S]
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
I; R) m! T& b+ _; r4 {* k
; c8 V" N# c( W# o a0 Pset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))4 e) Q+ S" v% T3 A6 H9 Q& f. B0 C
;;将此次交易的记录加入到customer的trade-record-all中
8 J/ a: u( G: d, Jend$ }1 q+ P' i( j1 K2 ]
+ | h- i' C9 R1 b4 j. x
to update-local-reputation1 M k: ]* T6 r' J
set [trade-record-one-len] of myself length [trade-record-one] of myself# i9 w+ i$ K- N
% l6 x+ q" A) S) r/ h0 k
2 {3 J+ J ]6 p4 |* E5 j) }
;;if [trade-record-one-len] of myself > 3
. t& `- H: j! T9 A1 ^/ |$ [' X8 Nupdate-neighbor-total7 N4 U3 V5 D5 Y, |
;;更新邻居节点的数目,在此进行' g# ]8 f: F( J" s& e7 E* C8 e
let i 3
/ @/ N9 `: Y% _, glet sum-time 0
l! q+ r8 y( u0 c. r5 F! ]' ^while[i < [trade-record-one-len] of myself]& a% K( [4 x; ?1 m4 D
[. p! t' p6 H6 W
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )6 C8 a0 W" ?( c7 Y
set i
4 p* E3 Q0 g* C8 G5 E! g6 h( i + 1)
; q$ A8 S1 _4 g& q) x' E- N]4 ^9 ?1 e- N6 E
let j 3" b/ N% e8 \2 N
let sum-money 0
1 ]: I- f9 v! t& D5 e) _$ Hwhile[j < [trade-record-one-len] of myself]
q4 }5 W/ S- s& a9 `7 C; T[8 B" a* @6 |- F# i
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)
" f' Y% y; f) j# U4 b) q6 tset j
. W4 z$ e+ `) S; R4 x) H0 q+ i( j + 1)5 I$ {3 _/ C6 c; x
]
; J" l$ N0 V4 F* J7 }$ s! xlet k 39 ?4 Z" w0 T( T2 Z* ~+ z# V" l
let power 0- f/ K w! V2 \1 z1 {( r
let local 0
2 P% c t" R+ B, J$ o* ?while [k <[trade-record-one-len] of myself]0 f4 _& M' `3 X' v. e
[5 p: E# x i0 X% n6 j1 j# [
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)
- {, M) N$ H+ r% L% M% k! U% [+ v5 eset k (k + 1)
& b% n, K% Z. Z! T]4 |: Z! E- B5 P5 ?; {
set [local-reputation] of myself (local)
2 t2 r) Y' q- t% z. A! i( ?0 |, b: Wend$ ?6 }* Q7 K: ?2 E( d
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to update-neighbor-total+ k% T6 t) g0 r {) U9 H3 N' P8 W
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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: }+ d3 a" A5 Aend+ W2 N8 y, b+ w6 w0 a$ S
. ^' l( c( ~7 lto update-credibility-ijl 0 z6 B, Z& p# i# O. M# h" ^
7 B( t3 q) A9 i4 n" o( c;;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。
- ~* G, h3 L. _" J2 plet l 0
% R) Z# Z' O, s/ k' {' Iwhile[ l < people ]
, h, p; n# c' C;;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
/ B2 X" R2 d; k* ^+ |1 T1 b) S[
" W/ d- a' T* W6 Z- Alet trade-record-one-j-l-len length item l ([trade-record-all] of customer); ^' X+ o0 v( m
if (trade-record-one-j-l-len > 3)
* p& r4 B% ~2 r. 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-one7 v* S5 j1 L5 s! O& k
let i 35 Z' K0 K' C6 H( P$ y! r
let sum-time 0
, }, U k0 t9 S" B/ C u9 z" Rwhile[i < trade-record-one-len]
4 \! \: {3 B! e2 t[
& H+ f% x' A' `* }1 q" }set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
4 G. Y# V$ |! G& [" T. vset i/ w! ]( ] s5 W% r1 A
( i + 1)
: V5 T; R: u9 F/ z]
/ K' Z6 t. w# c# t7 k4 O# qlet credibility-i-j-l 0; A5 Q" K# }" [" L9 n9 C0 V
;;i评价(j对jl的评价)
: Z! {+ V) L$ m( Dlet j 3, N2 ]# x1 w" {; W7 t
let k 4
& Y, [8 U! \" V) Ewhile[j < trade-record-one-len]
/ Z) |; D- h% W5 N* I[
8 }1 j6 \0 D( D1 M2 qwhile [((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 y, ^& ^/ R( O4 b( ~3 C( fset 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)
}# n* W; ~+ S$ o' q+ dset j
3 ?/ C& J7 W/ u0 a% x( j + 1)
) ]2 U. J# F7 q( O]
% G- h6 B0 r' T H( qset [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 V: B+ U6 o! \& p
; }4 i1 e; r- u/ ^' o* P6 S/ T- A6 ]
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ Q. R: S# H( j t2 c" |8 j* ~;;及时更新i对l的评价质量的评价0 q: ` _5 V7 O( H6 P
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ], ^8 E5 J4 i2 E$ ^5 [* ]
set l (l + 1)
& T) _4 E1 v8 r/ }]3 \0 h: a9 O+ Y+ @
end
% B! x7 u& ^, F7 o+ y0 F2 }8 N& \: L
to update-credibility-list
2 k; V) _# w, |let i 0
) n5 m8 s. [+ ^) D2 c) Cwhile[i < people]4 @2 E, k0 w7 L8 y: Q: K* v! h
[
) M+ ]+ ?& \) rlet j 03 i/ j% U2 V( i
let note 0
/ O' l3 O. \% q1 z c. A0 rlet k 0" B$ F$ P( K# N1 S
;;计作出过评价的邻居节点的数目$ B: i" ]- v3 {$ G6 V# @: t# K4 M/ g0 ^
while[j < people]
: h+ ?1 J {; a6 R0 S8 f, }- o: k[. ?; G1 R& D7 I
if (item j( [credibility] of turtle (i + 1)) != -1)" a: z0 S2 T$ N
;;判断是否给本turtle的评价质量做出过评价的节点
0 V+ m) b+ I: g, h; t. q[set note (note + item j ([credibility]of turtle (i + 1)))
% @% b3 X/ d% a- ^) k+ i) C;;*(exp (-(people - 2)))/(people - 2))]$ P1 r* a: P6 H& M% w) t
set k (k + 1), U8 D. Q# Z1 g }9 J. O: u: j
]
$ L i( G3 w2 D$ x. K2 J* w+ L, _set j (j + 1); z4 j, O0 Z f3 _: V
]
0 i1 r5 Q; l0 r1 e8 e0 Hset note (note *(exp (- (1 / k)))/ k)5 V( L g g- ~0 P/ Y y. H$ a
set credibility-list (replace-item i credibility-list note)
1 N: M4 I$ _3 P& bset i (i + 1)6 q/ N/ o W+ J9 V' j
]2 y; x( O. k- J T: J& e
end; J% }$ g! m' |; S1 F. p
; m3 K7 O& n4 O& e+ K7 F# ~
to update-global-reputation-list) H8 E) W7 J7 J' k
let j 0
& |4 t: J2 _0 qwhile[j < people]/ J" P* D5 \/ _, v
[ o$ `( k O4 G8 K
let new 0& P9 p1 g+ D1 b0 a8 H
;;暂存新的一个全局声誉
1 [* l- U! V" E Llet i 0: H& ^; i( z# r2 V n. c7 p8 \
let sum-money 0$ S8 [1 _0 `4 f
let credibility-money 0
" ?% v$ P+ Y5 I, m6 j% twhile [i < people]* c) N. u) W6 m; F4 O! V3 J% U* S
[
6 `; X% Y1 O) j) p% bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
% [7 L* p3 ]) T0 }8 Uset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))2 F0 R0 B7 Z- ~+ m5 O
set i (i + 1)
; w, j5 R& s' \* l; o2 m$ }]
% B) K0 y6 N& ~let k 0
& [7 H! X& S4 W7 E3 Qlet new1 0
2 \6 X& t$ S7 }/ D" P* R. g) swhile [k < people]5 g* ^6 V& z6 Q6 x: s( S9 U2 n
[
- ]( T* Y9 B7 p |9 t h2 |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)
; K* p" n2 x6 B+ N2 i+ _9 p8 [set k (k + 1)3 M( z; U5 Y) f- U0 C
]
g% l. {/ \ `, d1 j% w+ eset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) W) M% P: Q/ o7 N% q8 M" e2 i7 t" ]set global-reputation-list (replace-item j global-reputation-list new)- J! g9 |( F+ [1 m6 J0 M
set j (j + 1)( ^9 S2 U U7 r# A2 Q
]
+ w, |' h4 D* b( Fend1 R+ c; e8 H& {! C
$ q' a- Z" Q7 e* p$ d; O) }: Z
: L, h! u. b+ J' w+ S$ F: {( G
. t1 Y& h: L( B( Nto get-color
, U( N; w% Z; k) u1 y0 L
% y/ F5 S& D3 Z2 \& |0 Qset color blue& w4 A" z) P% D/ v2 o0 e8 g2 w
end5 X- X$ }, k' P
- a; u' l; [. E0 h% ~% ato poll-class# b2 S/ G# t# r" D! d% C! T7 o$ } ^
end0 Y. E+ N- K4 @" \; @
% B* ^& J( l/ }
to setup-plot15 K, d: d& Q/ T- j* V
& I9 _, U8 d$ v6 M' h1 Nset-current-plot "Trends-of-Local-reputation"
, a' S5 }9 ^" e- F* @/ r9 F8 m6 Z( m+ t* S \; A% b
set-plot-x-range 0 xmax, L5 \& }0 U- E: C+ b9 k% ^
7 `$ n, M- t" i2 G! w
set-plot-y-range 0.0 ymax( E; r7 W4 A" A. @0 q6 Y/ d+ C# V. y
end
& Z; i* Z3 x$ b# J+ n
: f) H% @$ R: V$ W$ ?- wto setup-plot2
' R1 p# K2 Q/ ]( t3 u, o K$ J
6 l6 T( l4 i% G" J& J, Wset-current-plot "Trends-of-global-reputation"6 J) z- D4 F2 P9 f
/ G4 W( @. Q$ n7 d9 i! I4 u7 }: wset-plot-x-range 0 xmax4 `+ @* Z Z s9 j) D# d
! I6 r7 N" D3 V* U& f; _! i+ dset-plot-y-range 0.0 ymax
! i! x* x+ A$ F0 {end
5 V" R2 t% ]; _) S8 @; z
* M7 B: y% X# _7 g# D0 g3 kto setup-plot31 ^1 A4 j$ w; X
* s6 v9 c t6 {9 o/ S! ^( P
set-current-plot "Trends-of-credibility", R0 A1 {7 L2 y) d, d7 D
% I) [3 F' C: H( W4 Zset-plot-x-range 0 xmax
, Z1 }. D4 i6 P: @) p6 K
: c" y) S' @: o; Fset-plot-y-range 0.0 ymax% I% e4 _ ^% J0 p
end
; {! {! P7 I( b: T7 ]
7 [! D5 P& r9 u+ cto do-plots! G9 A0 W0 g8 I" w- v
set-current-plot "Trends-of-Local-reputation"
% z5 }$ P/ t J6 ?9 w3 ^set-current-plot-pen "Honest service"5 p) i' G& o# A7 J# }1 p% H' D9 u
end0 ?' ~; x. J0 S$ H+ Q* \
, o) q. `. W0 g0 a. w# d; G" e; J+ @[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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