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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
4 q4 U" P% s+ V' E) sglobals[0 F$ U: v/ c0 o0 ?* m
xmax
# e4 o, O0 K& |' e! J, oymax
! t6 z: ~4 u( A9 xglobal-reputation-list4 i9 L8 Q8 N" m) V8 W4 ], a# i+ T
6 I: j# p5 F" M" f; T& D
;;每一个turtle的全局声誉都存在此LIST中: J1 }4 a/ V& I# G, H% ^$ u: m
credibility-list
F2 {4 W& Q$ r/ n) V" \;;每一个turtle的评价可信度
& A, \' B' Y! L2 {& r* H" u; W$ C/ Ihonest-service! X" V6 w T5 N6 _
unhonest-service
. F. Y0 z$ f5 p; Uoscillation* y0 \/ j) j: T" q- g
rand-dynamic
4 q+ R2 p! f( G]5 R2 j/ D0 E8 y C% X7 R
. w" z: J0 w5 k4 @4 j
turtles-own[- w+ c/ W6 e8 i0 I
trade-record-all8 V% H( f U8 {8 g* y
;;a list of lists,由trade-record-one组成" E- M# e+ z; y4 E6 t
trade-record-one
8 E4 b2 x j% c U+ i5 l/ _;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录( l% m, \* m& ]; b/ R) k- V
" G$ B6 r: Q2 T& f) {4 Y8 |3 I;;[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]]9 _2 x F9 Y2 l# ^4 d' j
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]
# ^- I/ m# N- d( ^8 ~% 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list+ g1 g: Z! b; u# N- c, B
neighbor-total
1 n! k, G% J( t5 l" v% M7 t9 `;;记录该turtle的邻居节点的数目3 w% O6 p9 Y/ h4 R/ {3 C) J
trade-time, @/ L( H1 u6 e+ n# s, J- e
;;当前发生交易的turtle的交易时间. @* [, l. ^- G( g6 V, X' Y
appraise-give
5 j7 j7 y6 d: K5 j;;当前发生交易时给出的评价
7 N+ t8 {- j9 l' U$ ~, i7 Wappraise-receive6 n) J2 t9 Q7 r& i" ^% r. ]6 e9 L) \
;;当前发生交易时收到的评价
9 W2 B; \' J* E4 Z" V+ Zappraise-time
, Q: \* y5 N U* ]/ G4 d: L2 G;;当前发生交易时的评价时间1 l/ K, X5 K' i( q$ K2 B
local-reputation-now;;此次交易后相对于对方turtle的局部声誉" C$ s9 {5 i$ F: a$ J: j6 ^
trade-times-total
5 w! Y* i i' l;;与当前turtle的交易总次数
/ W2 H! y7 t; d/ Z/ rtrade-money-total' d* [2 R1 n: ^5 n
;;与当前turtle的交易总金额4 D3 k7 L3 `4 R8 e
local-reputation
! [3 R2 R4 @' u. G5 w( p& vglobal-reputation1 v2 S9 |5 Z, N S
credibility% Z3 _: a3 m9 f3 R2 i' v
;;评价可信度,每次交易后都需要更新- q( w3 a; f+ d& X0 y! ]
credibility-all. c# |/ i( @6 C2 f
;;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
. a+ n% U/ P! n1 k: c- _7 r3 W
;;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$ n9 A, \' c' t6 E1 U
credibility-one: J/ w% }! w) p# A% _. c/ H4 i) a
;;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* N. v$ I% y3 a% b5 U
global-proportion% w. Z/ i$ G f% g
customer1 r/ r. m; H z! m2 H( {2 h
customer-no1 x. B7 X2 Q# e0 r) _0 J
trust-ok3 D7 t# Q6 q+ d. X
trade-record-one-len;;trade-record-one的长度
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9 ^. {2 Y' y9 K( J4 q;;setup procedure
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/ p. |. j( B/ [5 \6 _to setup8 }; o: Y& e' ^
^8 H* ?+ E2 m8 d. j
ca6 h# ~) B+ _" P1 K' f
u$ r5 w# g. tinitialize-settings# o. o0 G9 o% W# s7 t( [4 {
6 y2 c/ y# B, m" m# W1 J* e. C2 b
crt people [setup-turtles]" b5 N# [% N4 N9 t" \- J
. Y3 b5 A4 x& areset-timer" y* O& H7 E+ r
' j0 V/ K1 z: z2 }
poll-class
5 m3 |+ ~7 h- {- Z# {6 Y7 U2 q
& Q* u2 D$ m; Nsetup-plots; l9 X( t2 y5 s$ Y
) M- \$ ?- h) m! F! Qdo-plots
7 Q+ a4 U4 [* F* t- q- ~- Eend
1 S) p( `! m. g- a! T! m
. W2 G: @# A _4 F' Qto initialize-settings. {$ U! `( x( O" _8 B8 G1 ~
; O3 ^) n, {; y3 l3 q5 B, Xset global-reputation-list []! y0 g; A$ ~/ U! G0 J
. C+ n* c, b0 i3 V4 o) V& F9 v9 I! i
set credibility-list n-values people [0.5]
( T' y: W5 k+ Z
6 c U/ Z, y( a- Lset honest-service 05 n7 x& @: H6 B y# }& Z" Q
) Q1 l3 E$ ?% ]) I. C
set unhonest-service 0
: v( o/ _1 U* \( |
/ y+ ?. T; m2 L/ Q# |set oscillation 06 v+ h; g3 Z5 |1 u( J2 ?. f8 Y
/ |, b/ }4 H/ o; H- j" N
set rand-dynamic 0
- A6 m4 @. ? p1 W3 N9 Oend1 H" w) d4 p% X1 ]" F2 _3 a
& Q9 N& O5 R2 y' ^1 K" lto setup-turtles
$ w& a1 L/ X) D' V1 E1 i+ H+ a$ E# Xset shape "person"
3 A, \3 n" Z& r/ x8 `, r: `0 s! ksetxy random-xcor random-ycor
5 h4 \4 p; O5 A9 ]* s2 ~( @- y4 iset trade-record-one []; e. G. E7 n7 a$ [$ x1 O
( j# T( B2 [5 y9 A) t; u6 n
set trade-record-all n-values people [(list (? + 1) 0 0)] 0 [6 V, b' U7 r
( T" ^" w0 ?4 R' q+ H7 n% X. J$ Wset trade-record-current []0 ~; S& g" ?, U
set credibility-receive []0 N( C5 A; i, [8 B' _6 s( C) ^3 v
set local-reputation 0.5
% p" ~1 ?: m6 O }4 p3 c% Qset neighbor-total 0. O: k3 c+ O+ g8 m5 Z X
set trade-times-total 0) n+ A- I$ A3 X: M- K0 h
set trade-money-total 0
* d; V% ^' Z Kset customer nobody
4 `4 X5 p: C: h B7 b1 C$ uset credibility-all n-values people [creat-credibility]
7 }! p' g+ S0 J/ h# @6 Fset credibility n-values people [-1]$ p# O9 M& K; a3 C5 ~! P
get-color+ u9 v: {: O$ `9 I- l5 B5 S
- G4 d2 F I* v- A/ @) p
end
0 b- m/ C2 K# h+ P9 r7 c4 b( o: e% ]
to-report creat-credibility* g: |9 G' l9 ^& t# H
report n-values people [0.5]
- @7 r* b$ ~* V7 v3 u+ B: Aend, k3 w3 y2 q8 G7 ?) o T9 U, Z
2 i4 D. Y" X7 g
to setup-plots% J# X" r; T+ l3 K* }( g, P7 K
; r* K+ a. B* A$ t( `set xmax 30
# x$ h& T! y' Q0 E, S4 a/ e& Y2 x7 b9 m2 l) N7 l l
set ymax 1.0
2 b1 N ~, Y; E/ d0 S1 ^+ z9 ]: R7 a0 t0 S; H; K
clear-all-plots
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setup-plot1
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setup-plot2
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setup-plot3- M. J2 e! Z \( ^& N
end
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7 q( n) I% m& \;;run time procedures
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to go8 b6 K- w+ f4 I4 U1 P
- v, t5 G/ ~- }* g, w$ {3 `2 v7 iask turtles [do-business]
' p1 K5 [) ?4 jend4 ~* o3 U4 f, J, F0 y. j
2 c9 y! q% Q# i# y! y. p" qto do-business 8 U6 U9 t8 H5 q8 c& X: X" Z
6 n1 R3 k1 t) d! q% p- Y
3 p! ]; w! ?4 D; `+ |rt random 360
: F0 H3 ~! {, l2 ?) k9 K' Z7 n' w
fd 1# d/ Q6 H# {, f8 F8 j
% Y+ _7 t0 c$ u# b
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here9 Q& m9 a6 X7 ~
& O' S; i) B2 f, T, I
;; set [customer] of customer myself5 c8 [- ?% F/ ]* f& l! ?/ c
8 N4 [" N, u, j% Z, w: Gset [trade-record-one] of self item (([who] of customer) - 1)! @% h7 }9 H' \3 u; b0 U9 x
[trade-record-all]of self
( t! B' G3 B+ D;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self5 b7 Z" S( F* [: _* l' \# q
8 U9 ?! {$ a u& b/ S* S- i" o
set [trade-record-one] of customer item (([who] of self) - 1)
7 P0 _, ]" H' ]: b[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
! @6 Q5 o9 V* I4 Y( s$ g) E' Z+ Y3 k: i9 H, j6 g$ \' |" [
set trade-record-current( list (timer) (random money-upper-limit))8 r! Q# ] Q- i
& A# p9 O0 s7 P* W: {% G' ~- g
ask self [do-trust]
! G& v3 ^) B# G( g; k' U5 V;;先求i对j的信任度
+ W; W& D2 y8 M( r5 o
v: d f0 z3 N7 P" c" m, Kif ([trust-ok] of self)1 m: o5 Z) Z' A. A3 x. U
;;根据i对j的信任度来决定是否与j进行交易[$ F' V5 N7 p& n& L9 Z
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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% W% J9 p! R2 P+ L/ \[) E1 w7 c d2 ]' u
" ~6 h: q+ z B2 r
do-trade6 I* R4 B/ W5 r& z9 q( l% K" X
# `- [* D9 ?* a9 S2 N
update-credibility-ijl
0 Y b4 s7 \; s, l3 d# X4 [2 E4 \; w& [+ p' h1 [8 W' \% \+ Q
update-credibility-list
+ j$ Y& H, K( m6 `% d @* m: c% K8 H8 y" L
9 w1 ^* s& D% y7 h' j$ tupdate-global-reputation-list6 j. G6 S& k0 M& a8 j
( \+ N4 N- M' H2 ^# t+ y
poll-class6 K& v3 \* _4 d H' B& v0 @
2 j% m5 N7 }5 W5 ~
get-color2 x) D: ]/ s7 w! U ]
1 ~$ x' {* S* @; X3 Z2 b. H! \]]
9 S, I, E3 I! Z4 K4 f C: ^
. ^2 V! f( t S U" S;;如果所得的信任度满足条件,则进行交易# C* w) e& F# o3 V( v
% ^. d0 R, K! |5 A7 `
[
0 L. A0 f; A9 C5 y
, ]6 N) x2 h* ]& d3 N# D) n; jrt random 360' Y f" K& `6 v" N- g8 i- p
$ H7 K* D. Z" \& U5 _# k0 P
fd 16 M: ]$ W$ Z; L8 Y* E! m
$ Z; x4 ^9 b0 W1 l6 [! t2 i# s7 }
]# D9 r n2 _, Z: @
4 G# l! i2 ]: N* ^, X
end3 p. ^) B1 |) R; j% `
9 z h1 A0 Q { B2 h' K
to do-trust , X/ k2 W) b l" t
set trust-ok False
+ |- x$ F3 G$ ^+ M" {# K$ t+ t. C* @" ?4 X$ W7 _
1 a- c4 r( w' [! V, e
let max-trade-times 0. i4 G& y. }8 D" g* P+ T- K
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]6 P/ t* u6 Q! q
let max-trade-money 0" m& ?: p, K4 p3 X6 F
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
* f( C; f% a# m' _+ z! Q3 Dlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- s0 V, F) ]% J: p3 t& W/ [& w
3 I! z. x$ L7 w, _$ a& w. y* u( F/ _$ x" [" @, U+ U5 ^* `3 i
get-global-proportion
1 S z6 l, }6 g1 D7 i" Dlet trust-value
! b7 N/ H& D% R8 Y9 F: \+ A" X3 t: {: }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), D' u+ ?3 Z/ x+ L8 V' p" \# \
if(trust-value > trade-trust-value)
+ t3 c7 J1 j" x0 ^" x) s9 w[set trust-ok true]
9 h! q; z( Y: a5 _" X/ Aend
: c) W) o6 a2 m' q& S) y* V
9 R* S6 [ ^' p1 Oto get-global-proportion
1 m6 ?! a4 O5 Vifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
, s5 v, X/ x! E& e! G* w" k" t[set global-proportion 0]! m7 n+ b3 D `1 C" k& e+ U+ o
[let i 0
6 x# ^, \2 U1 ?" s/ |1 Zlet sum-money 0, J7 a! W. i |# B
while[ i < people]
& H8 p3 J( J/ v9 N* A: q0 {[
5 U3 C" [* j, v" ~. ~. p/ I2 aif( length (item i
+ x$ r/ d, o$ k9 k) v& s- w[trade-record-all] of customer) > 3 )( a. E/ m. b( B
[8 R2 A# D1 J# s$ K1 N3 E' R
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
: o$ n$ E% e2 O* S]' U9 F3 }+ \4 l. B( Q* {/ o" h
]# J) {( R |& K1 s, L8 t
let j 0
6 M j1 C4 Q/ b& S2 I. @let note 0( X0 l: L( M+ ^& ~; |) T5 _
while[ j < people]0 i: y4 r: T" R2 o5 Y6 ]. n) D d
[
0 K6 R3 R! I8 U# T( W& {if( length (item i
8 A% N! L" H% [, U, }[trade-record-all] of customer) > 3 ): Y6 h4 I/ R7 ]/ r" y; Q: u
[* ]* ~( [- b5 o3 U' i
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)- f1 _6 M: X- K7 U, Z. J8 Y9 @ r
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ A9 M. h3 ?3 a4 P% }[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
: L9 Q5 Z3 _2 E' @]5 w$ b: p$ ^! a @( d) [. X' [
]( y1 M+ L5 }, b5 _/ a
set global-proportion note
0 |) Y) H6 ?' d4 ~+ k2 O]
! d+ Z1 N. T9 I3 ]2 P& z! ?) Z+ oend" k+ e4 n6 v8 u
- X. h4 \* y9 B
to do-trade; W$ t1 `( k5 \0 u" N/ ~! l, X/ X
;;这个过程实际上是给双方作出评价的过程9 s7 X4 \) U( }0 K& ]
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价5 h# V; v7 F$ b0 p, G7 ]+ _
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价; Q) `' } H8 T5 n* P
set trade-record-current lput(timer) trade-record-current1 L9 o( Z+ J; K. k
;;评价时间
3 I' g: Y- {% G* l8 f8 vask myself [7 G- w% S$ _& X1 S
update-local-reputation
9 K' I0 W4 q7 e- wset trade-record-current lput([local-reputation] of myself) trade-record-current
3 X V- b4 b; C: { u+ J]8 C9 x" G* d9 t
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself8 s" _( \- l5 G: }4 A
;;将此次交易的记录加入到trade-record-one中
( M9 ^2 }6 A" U. X2 t( Cset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
# A# o0 Z2 \9 t. T/ slet note (item 2 trade-record-current )
* j2 i! W; y* S& r" Q; S! @set trade-record-current
7 f! C$ g3 V% p. A! o5 Q" J9 |(replace-item 2 trade-record-current (item 3 trade-record-current))
( ?. `8 Z+ y; h/ m: Iset trade-record-current3 E2 }' {; t3 N& i2 ^) g5 H. C m
(replace-item 3 trade-record-current note)
& n( O7 {1 g# m0 z6 d3 f0 h/ i4 V+ D6 b4 m ?) Y+ K, S
# |) @9 l2 f' p- aask customer [/ Q' w9 L5 C' _ v
update-local-reputation
1 s( l3 |0 | W7 w) Iset trade-record-current- B& ~ ?. x( }- _: ~
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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( {% P# N9 s2 rset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
, Z$ f) r0 R; D- |6 c% Q' J" z. a e5 J
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 a- [+ ]$ u! U A;;将此次交易的记录加入到customer的trade-record-all中
. s' J! v4 y. V8 t% e) Wend
& Q4 w! m7 f, k; h8 t4 g% f- }0 }6 W1 u$ H) M6 q, C8 f
to update-local-reputation6 X' j1 S( p; D
set [trade-record-one-len] of myself length [trade-record-one] of myself% A+ h8 X1 L6 R4 S* I/ H
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o3 s; ]2 z- E" { S6 z; V0 a;;if [trade-record-one-len] of myself > 3
( J. }5 v: |4 a" a! I% }% _update-neighbor-total4 f' g: n% J4 a+ }9 l) z, O* q
;;更新邻居节点的数目,在此进行
' Z1 q7 U1 b) j2 klet i 3
. a: u% Z9 W/ H: p! Slet sum-time 0
6 a! ~" C2 a$ ]while[i < [trade-record-one-len] of myself]
5 ]4 E1 N; E5 m( q# B c[, d1 b- m% {1 G
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
* ~, e" U& L; f$ D" Zset i
; `* p# y2 R; f; C; s( i + 1)
; U2 w+ j. z; `& G0 s8 i/ s, h3 a]3 g* P, K% i9 ]# F. o
let j 3
: u1 M9 x4 h# s0 D9 i2 elet sum-money 0% e& }# h# o2 ?. I% V
while[j < [trade-record-one-len] of myself]
" c3 T: V; O1 B! Q[
1 w( r4 k& `3 X3 `5 l: Eset 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$ c2 G2 b9 m3 V( C
set j9 r( K% L5 C% x& B1 v
( j + 1)
0 f9 v) A V( }8 h8 q2 B]
9 v4 L& H. l3 c! ^( llet k 3
: t: |7 {) v/ G \. q6 mlet power 01 N! A2 j$ M9 ]6 g( g
let local 0/ H. @% U b* z" n6 H/ O5 G$ T
while [k <[trade-record-one-len] of myself]0 v8 o9 Z/ _, |
[2 c; W' b/ E; s# P; }
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)
+ W+ C/ V% u6 Y: b; @( I1 Gset k (k + 1)
: D3 w- L( U# F& e2 M]
1 [! Z, ?! ^, E% r6 k2 Bset [local-reputation] of myself (local)
: _* X: G9 R0 [( Zend! @4 e( l" H$ L5 K
R# K# K) P/ g' w7 Y1 A" [( {
to update-neighbor-total
$ Y. G+ A6 N r8 q5 R9 R% w% N3 a& h' V+ K
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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7 E. S# w( s% ?4 o' w! r
2 Q `' L7 t- L, Send
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; b2 E+ M; ~0 I* _6 f0 e1 r0 R. s" | qto update-credibility-ijl * W& j. O7 y, J( Q( o6 p+ T/ {
: y! y3 i+ c9 R3 R1 F: \; P
;;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。
; C% W8 e! D9 k4 t$ _# F p; Tlet l 0
6 T c" ~: D" n' twhile[ l < people ]
2 I* Q& Q1 j8 g6 k7 B;;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- e- W U6 R- s) R, d M
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 e. m4 E/ e& }: ^
if (trade-record-one-j-l-len > 3)1 O# c5 A) ?4 y# A9 ^+ X2 j
[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
* g) c! [( [3 M# u. j' ?let i 3 t8 i9 ^; T/ N& X E7 m
let sum-time 0) ]( u- H, C0 e$ t
while[i < trade-record-one-len]% i: B2 }) A G( g( E3 ?
[
2 v+ b6 r* s# p! X# s! E: J) zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
* ~# L1 ?# @' I4 T+ eset i
- J6 g8 J N. j9 J; d1 F( i + 1)% b' q' x$ `7 o0 a8 a
]6 V% \/ f5 a6 {# S6 A2 ?
let credibility-i-j-l 0& G# f) `9 H# L! U3 p' A
;;i评价(j对jl的评价)% Q% m8 O( S) e0 y3 {" U8 J% ~5 z
let j 3
1 j% R0 G# r6 h0 B' X# b! H) Ulet k 45 K/ q+ ^8 T1 e9 J2 V% z, t7 g" d' I
while[j < trade-record-one-len]
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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
" W, i x1 N4 g% v( t; @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)7 m* A; \/ y, b1 F4 J
set j- _. G8 R( |0 _
( j + 1)7 Y: a% `3 l8 N) O3 @. Y( D
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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 ))
# U$ B5 S% k' g! B9 k/ D/ u% ~: p; y; h
+ G" U9 a' `! c' ?- Slet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) I, C- n' N0 i# R2 P u
;;及时更新i对l的评价质量的评价& l5 r3 D: Y0 g/ B8 m$ C
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]) r$ L" K9 P8 Z8 f; s& e3 n
set l (l + 1)
& N- y) t G- h5 b0 N]
. U" f9 l! v7 `end! o& |: J. i6 }( c. y
) x( [ l# D$ c4 ^to update-credibility-list0 v+ b+ T( J, X* Y5 h; A1 O
let i 0
' z: R7 C3 n5 h9 s3 e4 Hwhile[i < people]
7 _2 ? N! b5 P7 k5 w[
7 h" C' H/ q# _$ |2 I Nlet j 0' y# n- |- S4 |2 c
let note 0" f/ T8 F% m* [
let k 0+ h; a4 j- [; p1 F" N% A
;;计作出过评价的邻居节点的数目
7 M! l. g4 p4 t* x2 swhile[j < people]
6 u& C h, Y' a9 ^+ i. r[
, ^0 M2 S, M/ o) Jif (item j( [credibility] of turtle (i + 1)) != -1)' y# r) Z; O" T9 }1 h
;;判断是否给本turtle的评价质量做出过评价的节点
0 a( n+ v% F a$ X+ S& l[set note (note + item j ([credibility]of turtle (i + 1)))* w4 q5 d G: h1 \5 y2 t
;;*(exp (-(people - 2)))/(people - 2))]
/ {9 S8 K/ o1 A+ r' E# wset k (k + 1)
& q& t+ F) Z4 H+ k& D3 L9 r% c* B]
$ x1 o( }6 b& ^% E% ^set j (j + 1), b" v$ ^8 W" M$ Y
]7 B% b0 f9 \6 A/ E
set note (note *(exp (- (1 / k)))/ k)2 X' U; a' z+ x
set credibility-list (replace-item i credibility-list note)& o- [' u5 T* H' Y, U
set i (i + 1)8 L( ], i/ c K7 S0 f6 [( H% a8 H
]
0 F+ r; q' v7 T* P" l) n9 e3 tend/ T3 D/ B) `) K
4 V! P3 u; \7 T! u! U( S2 W) hto update-global-reputation-list
! T2 I: i! C( M; g @let j 0
$ ]! D. b$ D- C/ e2 Z' k! Mwhile[j < people]7 `! J! A6 ]) Y* F$ Z
[& }6 {' ], B/ ]& J, j" b
let new 0
+ x2 x0 v1 n+ A* `& o;;暂存新的一个全局声誉# Y( ~0 j2 R8 h, q) ?
let i 03 p z, K, t a5 n4 V1 a8 ]. p+ P
let sum-money 0/ V0 o! N8 Y6 L0 |& s. ~* N
let credibility-money 0( j: B) P( g3 F
while [i < people]
5 c$ H5 ] v* a5 o( v[( _9 v0 w9 E$ t& v1 j# @
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))). U8 R3 Z! B7 D W# i K0 x! ?
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))0 z3 r& i: B$ F, V0 v& ?, t i
set i (i + 1)0 k9 {* ]2 }0 A( a% {8 S6 C8 B- L7 x
]/ P" H! q x8 t n$ t
let k 0% P2 B3 h9 ]6 p. M1 q# t
let new1 0
2 N% I, T5 t2 |, z; y4 x% f* [# ]while [k < people]
1 i; e7 e) ?3 p+ J[# `" d. Q1 ^' c i
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* f# x0 c' v4 G
set k (k + 1)
0 R4 f7 G9 D, K]
. X& \% P% M8 f# b7 ?set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
# |+ V, h2 f0 ?set global-reputation-list (replace-item j global-reputation-list new)9 ?, @ T' _8 H" ]: a5 e
set j (j + 1)
7 B: h2 c c& X- |]
: ]+ E$ W5 {! h" M6 Y, W/ Q3 send
+ ~9 h( [; t6 K i% x1 G( Q7 h( ~- U7 g4 B5 C! C" g7 o
2 w; A1 v1 n1 O2 {4 M: v' [( y; \% S1 [* ^. B
to get-color' M; C2 C. j3 E, n
( ~' U, B2 V* t2 i' h
set color blue! n) [6 n* `" z0 U8 S
end
% m2 ~+ G- K# w+ B0 W. T' e8 A8 G, F# l
to poll-class
: E$ \5 R0 T3 s2 {5 R9 M5 e$ ^" Iend
: A2 t4 Z; U+ ?3 L$ `8 a
" J7 K7 d8 l' Rto setup-plot18 L+ \2 d( Z% v/ P& R
; m+ p& F( X, A9 k3 V$ K9 z: jset-current-plot "Trends-of-Local-reputation"9 d) c2 |8 D1 Q0 k$ X- K$ U# y
" q% }. s6 L7 W) i: a# u
set-plot-x-range 0 xmax, @ E! J) j e8 |0 P
! s1 p2 E) l1 I/ e* v3 Y$ {
set-plot-y-range 0.0 ymax
$ H+ W- {( y4 u2 L8 w; `, `& Oend
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to setup-plot27 _. L) h r. X# |" r2 P+ g8 z! M- W
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set-current-plot "Trends-of-global-reputation"3 a; w$ E& ~! P. Y
1 Q& b _( B# \' v- k
set-plot-x-range 0 xmax8 L- f$ D) P; _7 U1 g; }
4 Q% s: e" C4 o! t7 K' B* T
set-plot-y-range 0.0 ymax$ A. p: P* Y- o& G/ [
end( X5 Z. l7 r3 t6 V2 h, @
# I8 h- S: H/ O4 x9 g6 J6 |( x, b: a
to setup-plot3" `$ w7 y: ]* s6 e. _1 g* {% m: }
) d; J* y+ k6 Q/ k) qset-current-plot "Trends-of-credibility"6 P. v. N. j, x1 W) U$ @! v
: q# Q! V& i' h) `8 lset-plot-x-range 0 xmax7 M2 c) H: a9 x1 D+ Y
7 e6 s, I7 n x- D1 rset-plot-y-range 0.0 ymax' s2 N! [' ^4 |# V2 ?# n( j
end
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to do-plots- t" B. y' g% J
set-current-plot "Trends-of-Local-reputation"
3 L+ J3 w( C h8 X" H9 Nset-current-plot-pen "Honest service"
( {" I) p: E/ Send
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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