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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
( y W N8 R# u, qglobals[
4 ]8 W; @5 d! Z4 D; \xmax5 w9 s2 n3 ~' \/ I/ O+ W* t: p
ymax
0 X- `1 Y" }) K. S7 H5 ^8 p' S4 E1 |2 Rglobal-reputation-list- u' A9 F* ?+ q! ^
# J( t2 P: I; F2 {;;每一个turtle的全局声誉都存在此LIST中
7 z7 O4 a0 F" @0 a! A9 vcredibility-list8 R# H; l" o; T* O! V. R
;;每一个turtle的评价可信度% x- {" v7 Y2 k3 |* E! ]
honest-service
3 Y+ n5 [1 F1 m, k- O% w9 [unhonest-service0 ?* @, c% Z/ i A' D8 M
oscillation
, O6 m5 @1 y0 T& X, \! _, H8 brand-dynamic
7 V9 c' h1 b' M, r2 Q' ~: J]
( A2 W. p' ?" O+ B( Q9 D
6 N& }" O& R1 J7 Mturtles-own[9 d' L& }5 E; }5 Q
trade-record-all
% A" D! c2 L+ ?0 n& i) L;;a list of lists,由trade-record-one组成
e( J3 J ~: Q# U9 a" V8 h, Ztrade-record-one
! |6 j: k1 x: {4 U$ A! a- w;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录- g( k6 ]" a4 Y& O4 i; t
. ]( ~) `+ a O
;;[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 N6 K8 V j& r6 q) E Ltrade-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]+ }: o. L& S: j# h& Y t
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
& \- Q6 N/ t# B* ?: t; aneighbor-total
# C* ]2 B1 q- U# U;;记录该turtle的邻居节点的数目& v0 p, B0 ~) t( I4 A& g+ V
trade-time
) {6 o K0 B; M3 w;;当前发生交易的turtle的交易时间; k9 D; N6 Q+ e/ f& w- I2 x
appraise-give8 T% M( Y' A. h' R" l! x2 j: F
;;当前发生交易时给出的评价# {1 e* y' p) R
appraise-receive
3 s. }: u% j4 r ^;;当前发生交易时收到的评价1 A/ F: t7 A0 z- i& U
appraise-time! W# o3 u* O3 u" G+ I" j, Z
;;当前发生交易时的评价时间
6 g# s( N) k4 s N: l- Ylocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
2 g: H: v- X- c- \) u$ ~" P: l- d$ ptrade-times-total9 t* o2 C0 R! t" `+ E+ r% x
;;与当前turtle的交易总次数3 a( g V7 a% e' T8 T
trade-money-total: H' B, k8 _7 y4 ^9 l
;;与当前turtle的交易总金额
/ Y* T4 P& U. b9 [1 O4 Hlocal-reputation( Y! ?1 t: W+ l' |; G
global-reputation- U: l0 ]/ X' M
credibility
. _) U- ?/ g9 e;;评价可信度,每次交易后都需要更新
7 m3 Z! u1 h+ }" B, ccredibility-all( }5 f7 V6 e8 F9 _+ 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, ]" E6 ]% \7 Q: }5 j
4 r' b+ ]5 | i1 W+ ]0 F;;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. T$ p' C7 U% Q; x
credibility-one
9 ]* d. s& g' J) p;;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
a; P8 H8 o$ |! ?# V5 ^) yglobal-proportion
3 V) G, h3 ~( Jcustomer5 g% D+ q4 z9 O
customer-no
9 C5 N- r% D( ~* Q" ntrust-ok
8 b" g% ]+ W; c; Z) E! vtrade-record-one-len;;trade-record-one的长度
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$ {1 T# `! _2 q3 m9 h
;;setup procedure+ X& h) c% \' y T6 j! I
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to setup( p' c3 P8 C7 R5 a2 ~
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initialize-settings* y# n$ W6 m, P* w! `; b/ X( B- f
/ J v U: M$ u( {/ `% y9 ~( gcrt people [setup-turtles]
* k( X8 t$ O) `# \% ]1 @! P, W. o9 S8 o* {' j- _
reset-timer
7 }( k: w) z! ~7 G: B7 e2 z9 B4 J4 r0 d% l4 I6 y" K( X
poll-class. D& h, R* D4 h! S; v4 E
! q+ I1 T' t; w/ \% dsetup-plots
$ Z y( ^; Q7 s# ]5 a2 ?% I# O* t" P& Z$ n1 q
do-plots7 Q5 W1 N8 [6 ~+ z: V9 U+ p
end$ ]" b' i8 B4 b. h1 Q1 I
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to initialize-settings
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set global-reputation-list []' w) R* o* G* |3 }7 ~3 j+ x
/ Q$ U6 B8 r |/ @3 O
set credibility-list n-values people [0.5]/ K5 G0 o' P0 [0 N
6 s2 h& h0 z3 ^) eset honest-service 0& X \% l( i0 l/ b% \/ n& m3 W
4 g1 S9 v* @0 H+ b
set unhonest-service 0
& I0 n P% X$ f+ _5 z9 A* o2 o$ O( x$ [
set oscillation 0
" U D; A& s' l4 [ {" v# b2 c7 R( O" g# C% p* ?
set rand-dynamic 0
6 _# }9 U/ b+ e& Cend
3 }; B3 g) K3 Y+ U" r# P8 \( T) q) ?' p8 Q0 z! }" M
to setup-turtles
) Y; f: Q1 ^; L$ b* Hset shape "person"
9 g* R9 l0 N# K4 Msetxy random-xcor random-ycor
0 q( |" M/ d) v1 X1 Gset trade-record-one []
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! v! w: N( u1 R. H* `, vset trade-record-all n-values people [(list (? + 1) 0 0)]
2 c; X/ Y, r0 d: O4 \
! p% V1 i0 o8 U3 Y5 H! c; _set trade-record-current []; n& Y. Y+ |. D
set credibility-receive []. N& V" _+ e( `' m5 g& R$ l
set local-reputation 0.5
) j [6 y! c# t8 |; Fset neighbor-total 08 q3 L) }# N. y7 w/ Q
set trade-times-total 0
9 D. L' m) J: bset trade-money-total 0
! l. ?( X! C# vset customer nobody F& j$ D! P. \- \% T! f( ^; a
set credibility-all n-values people [creat-credibility]
, G/ l8 f) `9 c; c& r5 t# Dset credibility n-values people [-1]
. e, E! Q8 U0 S% z8 D1 I0 V0 }get-color8 b! M) k0 x* z( d" v
6 V+ r, `- e a9 L6 \2 f# |end2 M: Q; q. L) c7 D; _6 I, }
% h0 f+ O+ ~- w* t( v4 Wto-report creat-credibility
1 ?6 n5 C% c: _) x* Jreport n-values people [0.5], e, a& x1 ]* X8 Z+ C
end* Z# { H1 P2 S' R
- g9 H" J1 m, i, |, Nto setup-plots
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set xmax 30
- {( z% {0 b# D4 S0 f. a/ W! W" P3 J* \& g1 i7 d3 G! C
set ymax 1.0
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8 d7 L& C2 {* ~/ a5 hclear-all-plots
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setup-plot11 {4 L1 Y" E! a, }8 ]" o
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setup-plot2- f8 |4 E! c7 L: Q+ j* R! b: [3 d7 X
1 P4 K( z. l' H; K9 H, C. O* C
setup-plot3
7 ~, B& V: V0 l' a0 oend
& r6 x6 `) k7 l$ E$ H+ [+ e# f' f4 }1 z$ s* W4 _2 A% r
;;run time procedures
% @% ~7 E2 q6 n/ g6 F$ B
7 b' Z+ \& l0 O8 G- Tto go
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/ E0 S" ?2 s6 _% N. J% dask turtles [do-business]
; S; T- x3 v% K( }. |: L: hend1 K+ | @; T0 t1 S/ F
/ O F1 I! s: D0 y( c
to do-business
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, D9 I' L2 G8 t4 p$ ^9 n3 k) V0 h8 `1 K
rt random 3603 @# ]3 H. ^+ z, u
4 Z1 [. D* E6 Z* e( G% A
fd 1
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ifelse(other turtles-here != nobody)[
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+ v: M; Y' X, _. l# Y" Dset customer one-of other turtles-here5 j/ L, ]6 G! ^4 J' ]
8 m& K0 P" N# @; \( i;; set [customer] of customer myself b; U& O$ j! p2 M$ E: |; B
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set [trade-record-one] of self item (([who] of customer) - 1)7 d* q* n. U% \
[trade-record-all]of self' }! Q+ Y# U& d' e) v5 I
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self; Z* v7 r0 S: H* Y8 I
8 u8 W# {/ \; o' P3 Y7 V" P; eset [trade-record-one] of customer item (([who] of self) - 1)! k: d0 x; q# R8 o' y) z4 F' f
[trade-record-all]of customer
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% d- c7 O# Y G$ s# l ~( Nset [trade-record-one-len] of self length [trade-record-one] of self! e. B- I& O0 Z4 _
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set trade-record-current( list (timer) (random money-upper-limit))
; |1 [0 W6 M7 _( a6 L' C/ L7 }7 o: t% w5 u+ E
ask self [do-trust]
" K4 n4 t' I j* z/ i, ^3 i;;先求i对j的信任度
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if ([trust-ok] of self)
: A/ ~9 M+ K/ |& Y2 @;;根据i对j的信任度来决定是否与j进行交易[# e$ Q+ P0 U7 S
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself0 A* \( J) ^6 k1 T% j# c4 E6 I
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do-trade# D4 ?. C. h( d+ D, h, L3 j5 q
3 G* S" e4 P* v
update-credibility-ijl# o4 {2 b( D0 ~. |# S j5 ^
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update-credibility-list" }8 O4 e$ U, q; O; R
4 q" s1 A/ t: @( G' R
9 N: h# G+ _# Q( M9 m5 C9 h% \% m
update-global-reputation-list
! Z$ e0 o; _" Z4 r: K! p( q) i! f, N, r2 W5 C5 q0 C% a
poll-class0 u5 I- A# i4 j7 s: U
% n# s* b+ h( Sget-color& _- \7 V. M9 M- ~$ Q8 v
' ~2 r" P% d$ ~( J]]2 n( b/ _" q/ g+ z& b' G; B$ ~
; j- }2 e: y8 H" s2 O6 o6 Z
;;如果所得的信任度满足条件,则进行交易% `0 }" @7 M- [9 l; W9 G) q: r
2 w+ U- z$ E+ W3 F4 G7 j0 s
[
1 k4 Z8 ~& N# T. _& q' I" w! b- j, J/ [. W& Z2 @
rt random 360
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: e# G! B6 Q5 w. efd 1
5 d" v# h; L# X5 \/ b! Q* D |2 Q3 ?; j2 Z$ T
]7 o! ]% T: _/ K. W9 f3 |5 |( u1 T
3 i ] h$ L% ] L2 z+ B0 kend
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, x; {2 w9 c2 R tto do-trust
2 K% D T0 l e; ^set trust-ok False; l0 h1 s# Q, H6 G9 f( Q: R- o
, W: H, {. z8 Y3 @
1 [" P8 ~& }3 X& v8 Jlet max-trade-times 0. C4 Y+ ^( B: z" H" h. J
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
' p/ {9 \4 p, d8 y$ e* t9 R2 } ^let max-trade-money 09 d& i) C* x6 s/ W& N+ X. J
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]6 B" b9 x* b y
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 Z: f7 ^6 w: S( B9 i' l! F2 I: W- z6 U% M1 }( }6 G4 z3 r J* h$ M
- [3 F9 _* h9 i0 v5 m; S4 jget-global-proportion' o# e3 R/ W5 w \& d4 q" y/ m
let trust-value& ]1 b: {/ A# e' ^8 F
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)
) m0 w0 ?7 @6 p" j0 T1 Jif(trust-value > trade-trust-value)
- k+ i( _/ X2 Q8 ?[set trust-ok true]
, N6 R2 o) I5 a0 xend
1 c+ h0 {$ X: d; ]" W6 a: J) w, a v( V4 b) @
to get-global-proportion
6 u# V5 w1 U9 Tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
& b+ g/ ]4 ^( O6 ]. [- {; _; L[set global-proportion 0]
& c2 c7 P; `! ]6 ^[let i 0/ L' U% l& ^* _0 w
let sum-money 0( D y( s( m* [2 I/ v2 O$ j- D5 w
while[ i < people]' Z" W4 S9 h; ?8 q
[+ m! X3 g6 @# I
if( length (item i. d( C6 T& F% R ]
[trade-record-all] of customer) > 3 )4 v& ]6 q' A y. p
[/ A" x* O% d* D
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))& Q: Z* U; o$ T4 ~, l: z) k
]
3 J& M! k j* X8 n' _1 X( N& \; P# P], b0 a6 B+ l% m
let j 0* p/ M3 y- q2 n
let note 0
; c9 V. F, n* |8 ]# _while[ j < people]
3 o% x! p+ T- A6 r5 ]# j- _[& u+ C2 W3 C5 X" X) t% h) ^
if( length (item i% M- v G$ U) R* m w% O$ f @6 `
[trade-record-all] of customer) > 3 ). w9 n, n" M! K) \. B/ }
[1 @" K' ?* W! y& ?, v4 V# f
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)5 a& L/ g" g, u1 H/ m) B( W) {
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 _- Q* ]. P& r6 r$ y, T
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
% e8 ^3 G7 S/ x5 U6 O9 q]( ~" b3 \ L5 ]. D
]7 w0 z2 y2 U2 c' p8 C3 O
set global-proportion note
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end P% H- O' e, H7 ?& L
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to do-trade
& W: T( {) E7 \;;这个过程实际上是给双方作出评价的过程
" v' H1 M& Q; b/ y. ^8 [set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
( x7 Q6 ?4 g r5 @, ^5 ]set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
* b4 e; x; m" G' B. @set trade-record-current lput(timer) trade-record-current* B! Y8 K/ |; ~# C. J
;;评价时间! c3 f! L" O Z1 C8 I; ]
ask myself [; l2 `* o4 S3 h s
update-local-reputation
7 n3 J5 }0 | Sset trade-record-current lput([local-reputation] of myself) trade-record-current% `' Y7 _ f. V4 _" p; m! ~, ?
], }4 m. }$ G+ P: Y G' v
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself1 R7 c0 E1 g9 x2 S2 ~" {
;;将此次交易的记录加入到trade-record-one中
/ V( {* j* K/ jset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)* ~% i. M! m) B6 N2 n8 |6 T2 a
let note (item 2 trade-record-current )
0 e3 }' C0 S! f% t" W1 bset trade-record-current
/ @% ~8 |" G8 U5 R(replace-item 2 trade-record-current (item 3 trade-record-current))) y9 M8 u6 l$ P! M* [: `% S
set trade-record-current. Z# d! l+ {- t
(replace-item 3 trade-record-current note)+ y5 `9 E/ C: e
0 l/ e) G' t2 m( w
" i% _8 r& I; {5 z. S" x% \ask customer [
, d0 c/ z& E+ V2 Qupdate-local-reputation2 T: S( F. t& z! n7 w4 ?+ ~. ?. T
set trade-record-current) q9 E( K+ K) u
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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. }- }1 l+ @" ^7 L
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
q- S1 p# A3 s2 p4 L7 h- W
+ [1 x, ^8 {7 `; ~, iset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 e0 W% m |- A$ s' {
;;将此次交易的记录加入到customer的trade-record-all中
! y$ n% L* ~2 cend( a" B; B, H: v9 ~% `3 T' _
) |" |3 N2 [ V+ O! k2 ^6 ~# \ w
to update-local-reputation5 G7 A; D- [5 c4 V
set [trade-record-one-len] of myself length [trade-record-one] of myself/ a5 w/ [/ j8 ?' o |; M# ]( C
! \0 R u' k0 q4 ]7 O9 e b, h7 [ v; q6 m
;;if [trade-record-one-len] of myself > 3 8 U' e% q: S3 l9 Z
update-neighbor-total
! ^2 e5 p; R! O8 c/ W% M% F;;更新邻居节点的数目,在此进行
' y% s8 }. ^3 Ilet i 3( Q: X; ~* o$ y; _) Q
let sum-time 0
. q* ?! `# f ?9 v- V/ W* w# x9 v! J3 jwhile[i < [trade-record-one-len] of myself]
8 |' T) i$ K; q0 [$ `[
, B- K! x0 V+ n4 N; F( cset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
/ ]2 d4 r' L% ?( J0 b4 a1 iset i8 c; X; | P9 U2 B, ?" u' X8 ]
( i + 1)
5 o/ i5 \: Y! q' ~; \- S" v]( D& ^* m7 X' y, r9 x' Z
let j 39 E2 V% c+ T' M8 I; C" E$ J
let sum-money 0
0 z$ m' F" ~' T8 Z; _8 N2 F K: awhile[j < [trade-record-one-len] of myself]
' x+ t! `; V7 `; _4 z5 w2 k[# }- b/ T3 g/ ]9 s$ F3 C6 q) M
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) S: N8 ]$ ~3 c: Y2 C, s
set j4 Y: I! ]4 K# P* g/ A1 [3 ^
( j + 1)' N+ P# B5 f6 k _: o; u* \
]
+ t) M8 f3 l; Q8 Wlet k 3/ A9 U, a9 H# Q; v
let power 0/ o0 X$ e9 ? L0 E2 o8 d s
let local 0. E1 e2 ~/ @6 M9 l6 t5 t
while [k <[trade-record-one-len] of myself]
' J( v- ~! l9 `' k8 d# S" J" g[# r1 l" T7 [$ g/ |4 I! w5 y+ \
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)
! x, |# O8 p5 D4 A! Sset k (k + 1)( p, ^5 w" R% Z: Y0 x+ P
]$ p$ Q! P! L7 D: W0 T
set [local-reputation] of myself (local)
& w. H9 j* G+ L* b! I7 o) K2 qend. }. Y$ g1 E! d; w2 N
- J) f$ ?) |' n% e7 eto update-neighbor-total
6 _( ^# a ?- P0 S
2 Q& |0 Z5 ?9 k z, E/ Hif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# v7 B ^, y, |" [
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+ ^6 @+ u `5 l& y% send
1 v! j! O" R- Y! Z2 O% _
9 d& G5 u6 S# p' jto update-credibility-ijl 6 R1 Z$ T4 j( U
6 K/ e; j* Z! M& j 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。& I! V- t$ C: O% {
let l 0
! W$ C" k# B0 V- K fwhile[ l < people ]
) W# F" r) R# |# O: 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# I$ x! }% I; \! u
[# q6 S. R, h2 O& ]1 P( }
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
8 b2 Q7 j1 E( ]if (trade-record-one-j-l-len > 3)
; ~6 e% [) f- n* m a; H& b[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- J% y/ i( J4 }) C% e5 `/ W
let i 3
. [ O; C! r8 e- `; flet sum-time 0
. a( h/ z+ T$ A! Swhile[i < trade-record-one-len]
; {% X/ g& N t" @3 p& i$ ?[
+ m- J7 M+ e( c! e2 ?set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )0 R5 Q# {' ~9 M% t2 q ^
set i
3 X$ V* ]. ~3 ?5 e8 L( i + 1)
% K8 B% m8 T2 g. t]& }: X* A1 y# L9 P( S( t& R F9 j8 J
let credibility-i-j-l 00 L' `: m% ^% g! z
;;i评价(j对jl的评价), {1 @; t: ?6 U$ ^6 V5 }
let j 3" A; m, P: U7 l2 t) g7 M6 @
let k 4" L0 d' e1 v. x" h5 H) ], B
while[j < trade-record-one-len]
5 ?; i9 m; U2 n) j% { z, i$ I[
5 z" G: z T2 c1 m9 \1 vwhile [((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
* M7 |2 g6 t1 o7 m* ] Xset 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)
& J6 b# U3 q: Rset j8 G+ C) s9 f7 p; e/ c% Q
( j + 1)
" M4 V& F0 O( D9 P' r]
5 F' L; \. d* b2 W5 q7 g. |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 ))
& m' R" t- Z G: H7 l p
. b% N* {/ i/ R1 ~: \9 C) C9 k+ o2 H# s
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))$ `% i/ \ m$ {" g7 j
;;及时更新i对l的评价质量的评价- H" |, \$ l% N- v' l% x5 D* q
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' f# d! D; \5 [# X9 C3 b3 Nset l (l + 1)& W) [/ E2 E) a5 n& v9 r
]
, ?; n* J2 V! X: x5 o) X+ M+ D3 Yend% m- T) v3 t" e2 W4 l) @: {! s" H, b: i
! X2 ~# |6 ^4 }. a9 b! H
to update-credibility-list
0 q& l3 Q" k( x. q) Zlet i 0
8 K+ s$ D. V! S L% i9 e; M/ x% Mwhile[i < people]3 \7 a' Z! a+ n! S, h
[
# n( T, {0 Y8 E! F4 {. {% s$ Qlet j 08 W& j. R N1 O1 W( M
let note 0$ y4 w1 A$ a5 V6 _3 S3 |8 X
let k 0$ u$ t( t$ T) R% n
;;计作出过评价的邻居节点的数目2 W7 B, Y7 t7 Z1 A( }" F% D
while[j < people]
& H4 q5 F* a% e3 V[: Y! k& @0 E* _
if (item j( [credibility] of turtle (i + 1)) != -1)
& a+ Y# y. K4 P% q" h) |! a( T;;判断是否给本turtle的评价质量做出过评价的节点
! u0 Q4 Z) B7 n% c4 g& a5 S[set note (note + item j ([credibility]of turtle (i + 1)))
- o1 C. v: K3 z9 \( K& }3 Z;;*(exp (-(people - 2)))/(people - 2))]) k; w. ^5 G' ^& d; A1 O u4 s% |
set k (k + 1). L5 b7 f! E/ g! A- X( p
]
4 _. J' }& c) |: p r3 nset j (j + 1)7 z1 N0 _7 {8 d
] W- V$ h4 {5 c" i% g
set note (note *(exp (- (1 / k)))/ k)
( L% | n" w2 ]set credibility-list (replace-item i credibility-list note)
$ }: y" n v6 v4 k+ @. c. g0 eset i (i + 1)$ |7 b6 b+ u: {% r7 D9 O5 B
]6 H2 x: F; s! ?' @" O5 y
end
% P% R5 v: ?$ S: r2 W6 a; ]: R
* E5 Q3 m: c O6 Y2 |4 ato update-global-reputation-list
2 P/ E( r: t: `. [3 x7 k% a) M. ?let j 0+ H* t) ~* L5 ~" v* s
while[j < people]( X! t- m. K6 s @3 X V/ q
[$ j. N v8 ]+ ]$ ]& a% U2 g2 I, _
let new 0/ T* G6 }; |. b, h
;;暂存新的一个全局声誉
& Y& V `: k' q" h: r; J+ k) o7 [let i 0$ C) `7 P7 y" c
let sum-money 0
# D& h0 n/ |$ S+ `( O& Ulet credibility-money 0
$ `5 Z+ w4 h5 q3 \+ `1 Jwhile [i < people] T `( Y: Z4 X% ?. T! t1 m& ~
[3 q5 ~, |( _' s8 W: f$ C' C
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))* s4 N# Z. {8 i: A+ k% e+ x
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)) K' i4 I5 o8 L# ]- K2 a. V/ E
set i (i + 1)
" z) l& ^9 i3 Y% l5 ?]
- J- M2 C4 J' d' c% S2 ]let k 0
9 `/ p3 s" U" M) c, Olet new1 0
4 \+ v" W7 U( _* h9 C% J5 ~$ _while [k < people]
/ b. b0 Q4 d) |. c$ O, W( S[
# D3 k3 M, G W+ dset 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)
$ M8 E& K* v* P& g$ ?9 S8 ~( ]+ Cset k (k + 1)" d; U( n3 u0 A# L
]9 E2 t2 O; B" R2 y
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
{4 U- D2 F$ ~' q' q/ Tset global-reputation-list (replace-item j global-reputation-list new)$ U. F% H; c, A4 S! ~& R: J* [5 u$ e
set j (j + 1)* ]8 O" v7 c6 l; m1 ^; |% s$ g
]
( F; _ t) l, h9 Z( q Z( Qend
- T1 f; J8 ]6 p& Z
: J; E1 L2 z" a; K" n* s7 E0 x2 p
0 e q& R' _3 ~. j; ?/ P% H
to get-color o( B! _+ b* C
, H2 }$ c, U1 b4 \7 n! o1 }% @set color blue: ^" M" V; ^& K
end! l0 A: z2 \/ o
' T1 J9 w `7 V2 w6 o* d& Kto poll-class
% G: ?3 [' @: G# {end
( p& C( l2 h) O& N+ ?% b- I+ ] q$ Q1 u6 W n
to setup-plot18 a8 Q+ H3 E+ i& X
5 G# S. a' S i& D" o: mset-current-plot "Trends-of-Local-reputation"6 c4 T$ c: z1 `0 U* w; \
3 N* f% z9 g; h* ?& R
set-plot-x-range 0 xmax/ J: ^0 p: R+ H- J8 `" ~
+ |, N# V* W& K# h6 P, t
set-plot-y-range 0.0 ymax
$ S' x _" {/ w) [- A9 W; Oend
i: o% f2 B" t- H0 k% ^$ g. l! W* p. U/ h7 |6 _7 M: n! A
to setup-plot2& `+ N$ b* r! w6 z( g. i
( k% P, b5 ~$ S3 e) B+ aset-current-plot "Trends-of-global-reputation"2 t9 B8 D' u3 V, v* n
3 ~, _& D( L2 u4 q0 A* @set-plot-x-range 0 xmax. Z( \, g. p, ~7 U+ e
4 u/ p* i4 R% t! [
set-plot-y-range 0.0 ymax: u: U* i& g3 ?+ k q, z6 M
end$ G$ _4 Q. E- e( |
2 `" v% {2 j3 F, T3 e
to setup-plot3& B' D1 c1 [3 j3 a& Z" S( \
1 A+ f; p, ?, f, @' M$ h" ~
set-current-plot "Trends-of-credibility"
' A1 m& b$ f" U- N- z! ^$ K
3 p( v/ [* ~2 Rset-plot-x-range 0 xmax/ c1 J/ C7 d! L% u( y
! P" `0 ]& V( f+ Q
set-plot-y-range 0.0 ymax" T: G2 t. n/ l( l0 x
end' L. F3 P+ o6 G- _5 l4 n
) [$ D' u* J$ x4 i2 bto do-plots
) r! |* j5 d# R# Aset-current-plot "Trends-of-Local-reputation"
% z! @5 H N' n$ \1 N y" g6 z6 _# zset-current-plot-pen "Honest service"0 L+ c9 S% ` C
end
( l& `4 D4 O$ E+ e3 V
3 H1 x- A3 c2 b! s2 a: k! m[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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