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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
0 H1 l$ m" O( G+ V( v4 k; i3 n7 Kglobals[
6 G1 ~3 j* G! m% {( [8 |' `- w oxmax
5 y9 p& ~, V4 r* `4 _- I9 v" xymax; I# F7 j& ]* l
global-reputation-list
2 y. ?9 B8 b- X' t3 l$ C( S
4 z/ r% ^# |- {& `/ |- ?8 A;;每一个turtle的全局声誉都存在此LIST中
! l# ^- x" b* U* H6 Ecredibility-list
3 {0 y4 w1 Q! s4 W8 G( d7 y3 M) };;每一个turtle的评价可信度
9 Q1 {2 K: }1 v nhonest-service
{6 I; q/ G2 S; q5 Qunhonest-service
& N6 c) ?9 E! t, a* loscillation4 D: {/ N& u1 G0 o0 C- i7 C
rand-dynamic( Q4 c+ B) n7 f! \0 Y
]
& @( F2 K" _) X4 Z, y
0 b: O; W5 ^* Q5 U- O& mturtles-own[
& N9 s# v$ c" i0 s+ Atrade-record-all
9 `. M4 m) o, ~8 U$ ~4 ~* D; _8 v;;a list of lists,由trade-record-one组成
- Y, @! j- D& P4 i9 Itrade-record-one( P9 B9 u( R- c. [
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
! z5 e& ?+ P" t% o1 K Q/ b, m- F" z( ~. 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]]
/ M6 g& {& Z0 K4 W, q/ J% r% B' B F/ Mtrade-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]
- L. ?3 y s$ X9 I) z' fcredibility-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' J0 K7 l3 }6 G6 F! U0 p! `( u
neighbor-total
- m; q( n2 S2 E5 v I$ u6 _; b;;记录该turtle的邻居节点的数目
0 p+ `3 x6 t8 G% d6 Ptrade-time
4 ?- u( P Z4 Y; Q;;当前发生交易的turtle的交易时间
! Q! H. U( V2 {+ _ Cappraise-give+ A7 Z9 H& }0 _3 K
;;当前发生交易时给出的评价
- T1 y6 U% L! n/ j6 ]; Z; r, T* Vappraise-receive3 P/ d) ~" ?7 k! `2 c8 a
;;当前发生交易时收到的评价
4 A0 i Y# x4 uappraise-time
) @8 j0 y; t. K* ?" M& Z% Y' ~;;当前发生交易时的评价时间
& T" K4 U6 D3 J. ^3 O4 ^( Dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉; ]5 W; r6 N j) b; x, n# c: \% g
trade-times-total4 P, i! j$ I r$ O% i7 I6 c; d* H
;;与当前turtle的交易总次数
; Y6 ^3 F' r- x5 K+ Gtrade-money-total
1 ?0 U2 O5 R/ x! i; [/ P- q7 `$ ];;与当前turtle的交易总金额
9 R# t$ I; I# |5 flocal-reputation
2 l: \; v' Z/ B! T. i$ G }global-reputation
" R% f& p% `) |3 W( C) Gcredibility
3 B7 t- m; s4 ~4 Z6 J! X;;评价可信度,每次交易后都需要更新
7 U4 E- q5 g8 J) G6 y- `credibility-all
- T1 d" \ v" X" A0 V;;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 u: I5 X! F) F" T2 y
0 u. j+ \' r& U/ P3 W: D2 ~! o
;;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
7 L# ^' P$ Y3 f& U' {# Acredibility-one
( ?: B6 l( a% A% ?3 W;;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7 S6 w8 x% ~7 i6 l1 w8 B
global-proportion2 H+ I$ g8 v7 P' B: a; e: c! M4 j: S
customer, e: G/ Q) I" s* j5 l, b3 J" y
customer-no# h- Q$ X x; c( v' ^% l
trust-ok
( ?' V. h5 f7 H. c& U; o2 htrade-record-one-len;;trade-record-one的长度
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+ O( Y7 H8 y0 c; Y" j, x( I2 ?3 \
;;setup procedure
" A, q/ Y5 G, z5 H! r
: C) x5 M a; I- w& y' g1 ^5 ato setup
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7 p+ L6 k; z( Pca* X# q- p: v/ Q$ w) y( I* y3 a
# G( k0 x/ A+ ^& V; N. q$ N- t
initialize-settings
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2 ~1 k: l- O3 u- R# u& Q8 G6 hcrt people [setup-turtles]
) k* S1 y5 y* _" r% G4 j! z0 C( a
- y' h. N$ k8 w9 }: r5 {1 hreset-timer" Y9 p2 K$ x% T: o3 s6 m2 r8 k
9 g( O$ V$ V- ^2 bpoll-class
/ `# i) i9 o/ u8 e# k" G9 q" E8 {3 i- O
3 h0 ?) ?/ t' @- y, Ksetup-plots Q5 e: w F1 {3 a3 j6 O7 h
7 `' v8 c+ t% J# o7 T6 c% r0 e
do-plots
2 X7 K Q1 C+ j R8 ]; j: eend; D# K4 E* n. t- _
. |* T5 a% |7 U5 U- N6 bto initialize-settings, G7 d j) B+ J3 w8 Z4 f- s
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set global-reputation-list []
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% c9 X; o6 _% b" Y5 k* zset credibility-list n-values people [0.5]
. n, I' p+ L3 |
0 m( m9 P! {6 dset honest-service 0
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. r' n* D6 W& w' I. f0 vset unhonest-service 0+ n9 K; h1 M/ z1 G
! t' b& }5 i" ~set oscillation 0
( F/ a5 A% G- ~ i, V4 X( G
$ s% I/ Y2 K) ~9 [6 w. w) T7 @set rand-dynamic 0& w- _& j- N* P" I" w W0 M
end
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to setup-turtles }5 H5 |+ Y3 E$ J, \: Q
set shape "person"
. a3 m" p% t( h8 L% \. Qsetxy random-xcor random-ycor. i) X8 Q* Q( o
set trade-record-one []
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5 V7 T# g8 i; k0 ?set trade-record-all n-values people [(list (? + 1) 0 0)] 1 k w# M+ ?3 e/ V$ ^" p
9 u8 g! n; E! W' iset trade-record-current []# R2 R+ ]1 x3 g2 z' S
set credibility-receive []
4 B5 u3 n( H" X4 p0 eset local-reputation 0.5
" s: T" }$ U+ |3 vset neighbor-total 05 a: `; W) {* [% K- o
set trade-times-total 0( p r8 r9 _4 Y/ Z: n$ [- w/ _
set trade-money-total 0
& P" _+ e# W9 f- ^! N. v0 vset customer nobody+ p0 v7 \8 R, S
set credibility-all n-values people [creat-credibility]
. Z6 u: J/ |, ^) Qset credibility n-values people [-1]% D& R6 d( r) T$ T3 E6 f9 \3 o
get-color
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end3 X# D) ]6 Z6 @9 k+ B1 V
) `( a2 D3 G5 x# H |; Cto-report creat-credibility
% O) U' o5 T) G$ o/ y: `9 Xreport n-values people [0.5]% n+ }0 O, h" `1 D9 F
end
# y8 N( j: P# \% I2 ?. o
4 ~ X! G5 \9 x8 zto setup-plots9 Q7 j8 x: Q# \$ Y
% }8 }( u. M/ M9 Z7 Aset xmax 30( Z# k. G9 L. @
( g4 U+ `, c. X; m! \ u S) E" `
set ymax 1.0! j3 b! Y" u* c. r0 i6 H
( k# G/ U* X `4 b& a; kclear-all-plots
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setup-plot1
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setup-plot2
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setup-plot3) _# }: t: C' i) n
end* L4 F1 M# w; z& @/ I) f
3 X7 `. w; E3 }& e
;;run time procedures7 d' p3 d) h/ n3 d
2 ]5 ^/ C1 a3 N0 X: b+ r4 D+ n( A
to go: u/ B$ I# T, n; F7 c
% A) m# b7 d9 b& L" m6 `+ aask turtles [do-business]
" |6 Q' D. T1 d9 }end
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0 v1 s/ m5 k( z$ F# v+ K" _to do-business 6 ` @# {6 i% J% {
, \/ y* k3 m) c: B5 ~( i% u9 b
rt random 360
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, |8 H* T7 @; J2 I5 ]) Kfd 17 X8 I( O5 ` {+ [9 ]
, O) W4 E, v+ N: B5 K! ?1 r, A
ifelse(other turtles-here != nobody)[
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& ~5 N& Y3 Q8 A- A5 U, |$ Pset customer one-of other turtles-here- m7 O% ~6 x( G
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;; set [customer] of customer myself- T; G$ W# ^7 q' g
1 T* Z# o- M3 K$ \) Qset [trade-record-one] of self item (([who] of customer) - 1)
3 B# j' V' n3 Y4 f1 D" U% G' P[trade-record-all]of self
( r0 X* H' s: q6 g+ L% b; W;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self# G7 t6 ]7 \( Q9 Q& K# }3 p! r
$ ]8 f+ M' [$ u" x l
set [trade-record-one] of customer item (([who] of self) - 1)
/ W, d( v) ]4 ^6 W# @[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
: E8 b2 N0 U" ^. k
2 @& P4 k+ `; l2 O- d: j3 Eset trade-record-current( list (timer) (random money-upper-limit))3 i& ~# k: q4 P- y7 L( v
6 v# I/ X7 T+ Z* C" q! k2 B% ^5 M
ask self [do-trust] ~' A6 ~1 Y, U" z
;;先求i对j的信任度
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) C' W% P/ C3 c4 ]8 \9 R+ @2 ~if ([trust-ok] of self) z! s9 H3 }: I c. _/ A6 O- `
;;根据i对j的信任度来决定是否与j进行交易[0 C0 k7 _1 T" `/ d# E: |0 h6 A
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[9 ?' A3 \4 V( ^
9 @8 u5 }1 V' ~5 H* o. S: Z
do-trade8 D( C5 w# s9 O! w$ U, _$ d
' }3 ~/ O2 @: Q2 B5 }
update-credibility-ijl
6 i/ ~8 A0 o/ U: ]' b9 D- ]
& h, r3 T5 K! o2 D5 m+ f& j; W7 Xupdate-credibility-list
$ x1 D: _ C- i3 w# e- _9 I
$ M+ D$ l9 W8 _. m0 I8 a$ [
* j1 v# | c1 Kupdate-global-reputation-list
) y1 ?4 v0 O& T, u) T/ `
7 ~ y5 B3 ^8 t7 ?; |% Vpoll-class
( k: q; G* x! W: W& _ J* U
. f, m v6 g, b8 `get-color
' s$ P0 t$ e( y6 I, G4 E) I0 U7 |+ u. _! D* p2 o
]]
' g7 g y. V s% d6 {
: v' |( D5 c- p5 W4 D;;如果所得的信任度满足条件,则进行交易/ o. R3 m9 [$ P: J
0 N2 Z' V' V, ~
[4 N( r% r( S& A1 ]/ P* g
8 f3 e5 @# Z) }% I4 g& w) Ert random 360
; T$ A }7 [7 ]6 l0 x) G
7 @& ]9 } g0 H Y7 ifd 1" q4 h; q% ]: D/ N" y& I
4 w5 z% M) Y' \- H& ~/ H]
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! x1 i$ G' T3 u* z9 k P9 jend* I6 d6 {' p) [
. H4 @ I/ Z% W6 o* f* E9 r$ Pto do-trust ; ]+ s j- Y. \# ^+ Z
set trust-ok False
% p6 X, j/ O' Z2 d, J8 s
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let max-trade-times 0
9 j, {! y% P/ R) w6 Z6 Mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]6 K+ [7 {% w( I
let max-trade-money 0* {- |4 S& _# b. V
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]/ c9 p6 w/ ?& N" z
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
" I3 E1 C0 d' Y; l6 f' Y8 W/ R* A: \
( ?( j! P, ]' L# L; zget-global-proportion# [1 a: F8 y* [- l
let trust-value
* ^# N# G; A& Z3 m. 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)4 ?" B8 G( H# d6 n5 ]
if(trust-value > trade-trust-value)7 i0 F, { w: w5 V* Z* i
[set trust-ok true]# e2 L- i3 |( P: }, e. R, J0 m" Z
end: o: m$ ]" x. Q# V/ v% i
+ q! S; z% R+ b# e1 X. Mto get-global-proportion) D" b3 Y$ X8 m; Q+ Q8 P
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)$ i/ A: b w. W) P1 ]
[set global-proportion 0]8 Z' y6 u2 x z5 }
[let i 08 [! @+ f( C( l8 `& t
let sum-money 0' _) U+ ^6 U/ R( l/ F* F l5 F
while[ i < people]9 B. @) z8 S# U
[
2 ~/ ~9 |: p, o* Uif( length (item i& O& W; ^8 g% @. Q1 r' E
[trade-record-all] of customer) > 3 )
5 m9 a3 i4 Q3 C6 A7 l, Y" A8 `[
& e+ I4 o4 |7 x2 m' M, Rset sum-money (sum-money + item 2(item i [trade-record-all] of myself)) L2 D: R0 S, ^7 @
]$ j! x" X; _$ _2 b" N$ D
]
$ }: f) _* Y4 R: t7 m1 Nlet j 0
* Z1 [# p3 f5 e& _' B5 t0 V7 |let note 0- T# k! D7 F- {! ]6 u l
while[ j < people]. ^; M% j6 m2 G8 e' u' i
[2 C( L2 `- U2 t3 o. n) @- T5 s3 t
if( length (item i( N* p- D" L! H! z# }* O- {
[trade-record-all] of customer) > 3 )+ n7 ?( i4 A2 C G# l% G' x
[- o* x% M# A4 R% u4 O" e
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% Q# A$ _ k6 Y6 I& p0 n[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
y; F# o- ]8 r) e% ?3 V! t1 ][set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]6 B, S P6 E/ I, M
]
3 E8 d$ r/ P: @7 y( R+ a: C; u]
3 a8 G) q6 u* I+ |; U( }# Bset global-proportion note! S# \9 ~& [: s9 i
]1 W) X1 f" ~/ W2 v7 s! [, K$ \
end
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to do-trade
; C9 ^4 Y, r: h0 w2 P4 e;;这个过程实际上是给双方作出评价的过程9 I7 P" s# U& c9 R# i7 |
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
7 k5 h% d* A7 E- A8 m' Aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
$ b! `3 s1 P7 Y$ Q0 V7 Lset trade-record-current lput(timer) trade-record-current2 N& u2 {6 ?4 I
;;评价时间
+ G0 x- L% i. L2 @& ?* G l; xask myself [8 G" c8 Y$ {- S& |" J- D9 P
update-local-reputation5 _" u+ v. V" s6 \0 @+ b! R0 n5 X3 m
set trade-record-current lput([local-reputation] of myself) trade-record-current9 C4 {8 y1 S. K* d, F5 X
]
B: N2 g0 |0 U& i3 bset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: v5 d8 D1 n0 I/ }8 _# y* C
;;将此次交易的记录加入到trade-record-one中6 W0 A E% T! u0 U) V0 f Y; L
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 Q$ l3 x3 W& \5 b
let note (item 2 trade-record-current )
8 P- I" P ?2 Y/ g2 I: K3 J2 Z bset trade-record-current' e$ `- _5 E6 l2 e Q% c- g d
(replace-item 2 trade-record-current (item 3 trade-record-current)). M, a c" m6 ^3 a5 w5 |5 H- o
set trade-record-current
0 Z9 C+ {3 k0 M(replace-item 3 trade-record-current note)
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_. Q2 q) [( K! n' @% G0 c* p5 d, K! T. W
ask customer [
6 t- z; g5 o% W& c7 R* `" fupdate-local-reputation/ H/ q/ c$ z. U( K% G% o& }# ~+ c
set trade-record-current: i* I7 W* X- w
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) - J) Q5 k- [) B+ T7 r6 _4 |/ O
]; z: [- P- N0 C( ~5 |
+ m% ?+ j" b( }9 H
- l: O8 o1 {; _
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))2 J6 q- G7 w9 \9 P/ G2 R' s8 Y6 }
;;将此次交易的记录加入到customer的trade-record-all中4 l0 t2 a' x" ~6 M9 V5 |8 X' |
end8 [5 a" k L8 l1 _) w8 ^5 q
* x: n' u) |+ ^% y9 M( Z6 gto update-local-reputation
# I8 D6 a8 `3 B2 J; v0 {: gset [trade-record-one-len] of myself length [trade-record-one] of myself( q1 q& e: z$ e8 ^
2 N( X2 w0 v$ x3 c" w% @
, Z! T7 [! z3 t;;if [trade-record-one-len] of myself > 3
5 o: w- m6 @# P& g; {update-neighbor-total$ t6 P6 Z/ z! K' T, \
;;更新邻居节点的数目,在此进行
; S8 Q9 \5 ?6 d- Blet i 33 L4 ^3 e1 R" o$ X) R' E
let sum-time 05 n) G2 S' z3 w- x9 ^. b
while[i < [trade-record-one-len] of myself]
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set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 s ~; ^6 P6 K+ s& l, V9 }) m
set i; k/ f& G% m, `6 ]
( i + 1)
1 A9 P7 m8 H9 f$ w/ U# T]0 E# K' ]( k5 ^! U- Y
let j 39 _7 R9 v, G$ l- g( q% ]
let sum-money 0
9 v: k+ T, D. s6 ?while[j < [trade-record-one-len] of myself]
. v: h# d/ D8 \0 Z5 y* ~[, G: `# g. h5 _& K* `
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)
* G1 @* @9 A0 e% Q' Tset j
: `& ^. g E/ q; U+ S$ J3 \/ N$ j( j + 1)) m/ r S0 A3 N, b: y
]
) X" }4 _! T: Ulet k 3
* d: N0 G! L% ~9 t; E$ Qlet power 0! t" m; P: h% D1 p! J
let local 04 L9 j1 u8 W7 t
while [k <[trade-record-one-len] of myself]
2 b8 g0 l6 O0 e9 ]( G9 o( B# Y[
; p% @! ^ x( n) s! @% Oset 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) , v) U; U7 Y; m8 q
set k (k + 1)
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set [local-reputation] of myself (local)
- ~1 s( X7 L S& ~end% j4 f: c2 n. @' O. x% i
5 S+ T T/ p+ F( Q: |
to update-neighbor-total$ s! _" e$ R$ s9 R
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
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to update-credibility-ijl
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1 |3 v% N O. @9 ^;;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。! t }; \6 ^. r, v
let l 0. t/ g; Y6 d+ [: m
while[ l < people ]
7 o# z$ S7 ^7 w; g/ u1 g;;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* X A# A X* x! W8 ^; B
[
! j% k" ]9 }! d/ r# flet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
8 V+ P! l) @1 m) z2 R5 m# V/ vif (trade-record-one-j-l-len > 3)
$ b; ^# \% \/ M- D5 ~[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-one9 j0 c5 c3 [% U" l
let i 3
- R: S+ q+ h, Z: A$ U# _let sum-time 0) d# h3 Q) _" H' P' @. G
while[i < trade-record-one-len]3 B* [2 H7 H7 g5 L* Y1 ^1 v0 ^7 K( L
[& H; z# T, L m
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
: G+ C2 y0 [: m( {set i8 M5 j( r+ c8 [+ [0 Y" i
( i + 1)
& Z: t; O# b4 X) ~: u3 U]
. S0 ^) v1 e" E5 j' slet credibility-i-j-l 0
: X E/ ~. o b& w;;i评价(j对jl的评价)
' d: q8 {5 K# h" p \: ?6 F! Zlet j 3% i& }4 j- f" N. @
let k 4
9 j* `2 Z* S( m4 V3 S- D" a/ R; Xwhile[j < trade-record-one-len]
! M# {1 c9 J9 A8 W! v* G" p/ S |[
2 P7 K: t4 K- s v6 a Cwhile [((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
5 ~4 V# P/ C% x- wset 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)
4 m3 v+ v- y3 a1 u- E2 fset j0 ^! ?! ^3 X, {1 ]& `* J
( j + 1)
6 I7 S# d) v; Z8 O]
/ L% V8 l1 @) U6 mset [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 ))( p6 _! |9 L. O" m9 E
$ \9 P' K! P: ?9 b H5 f# R0 d; S; Y" y' e7 o' K
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
* D+ \- D% K8 I! V9 L: g5 F7 T;;及时更新i对l的评价质量的评价
9 u# ^1 T$ l7 c9 m+ o, @( cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
! P+ k |! S" L6 J% j1 d7 H# H5 |set l (l + 1)
, _0 \9 A; [- r+ S5 S+ X- L" j]' W! d/ g- P$ z
end
7 C" Y/ _6 p) [9 ^$ {, b( e* w: m* D2 @0 J' i/ S1 C0 r5 `
to update-credibility-list
& T/ j1 w ?+ Y8 f. {3 Zlet i 0: F3 S" W8 z* E3 \' K
while[i < people]8 G. S* H9 o! [
[
; i4 d5 t3 W6 U4 nlet j 0
4 l* `1 ]: O0 q5 ~let note 06 ^% S# a1 b1 S5 f: `3 h
let k 0
/ D' H3 Z' v, e" N7 Z+ l;;计作出过评价的邻居节点的数目# k5 A5 U+ [$ ?, Q, o
while[j < people]
" C6 c1 l+ p4 h8 @[6 z, C( [# J8 ^( _) p
if (item j( [credibility] of turtle (i + 1)) != -1)
* q5 H! U! G5 o) S \+ |;;判断是否给本turtle的评价质量做出过评价的节点
+ a% B0 D% K/ D9 ^4 j+ `8 T[set note (note + item j ([credibility]of turtle (i + 1)))9 ?1 R3 k$ K9 y9 ~6 ]) i
;;*(exp (-(people - 2)))/(people - 2))]0 d, U) w, q2 J1 b$ F2 e1 J
set k (k + 1); V3 [- n' c$ r( E
]4 q n8 K V& G
set j (j + 1)
8 d! [, T: ~0 U9 b]2 Y1 `8 k7 k$ r% P# w' }
set note (note *(exp (- (1 / k)))/ k)6 G& k: b6 l* l. V# \4 A7 R7 L
set credibility-list (replace-item i credibility-list note)
( n0 U( D. y4 Q5 q/ y3 S# R/ Cset i (i + 1)
3 O) }! S( @3 o" `8 F# q' b( P( l]1 H R6 H' X2 z; x. e
end
; W* ]' a0 T8 \, ]" f
7 |# j' J; {. e/ S8 J& H. kto update-global-reputation-list* f+ O& ?9 g$ @# [
let j 0
6 m$ O P9 E {' Hwhile[j < people]
( i1 g7 d- p1 r9 \" r$ Z. X[
: l5 A7 }0 p4 z- m2 ylet new 0: A% k+ y! x. [. Y+ ^
;;暂存新的一个全局声誉
0 T' S' m6 k1 i4 Blet i 0
& W! \, T- r( b; B6 k) d4 O7 v3 ulet sum-money 0' u, d+ P* u- H1 Z
let credibility-money 08 A7 h# a9 o5 {! E X: e0 ?3 U" K
while [i < people]1 g* d- r F* R" A5 D
[
: b5 S+ E6 _) v! e' Z' Gset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
0 Z( |& N6 L% E! H$ m- C& Dset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))* l9 p# ^* V x1 I) ]! {+ |
set i (i + 1) n# u3 l6 F ?0 h5 h" m
]
2 D @4 ^9 G8 p. x5 `7 Hlet k 0
; D2 |. P% |# K8 V7 _7 Z; g4 G8 t% Olet new1 0
3 I: o+ h! V! q$ M( gwhile [k < people]" v7 @) Y6 k" _# a9 a2 S
[
/ ~' u W0 e7 U$ C; ~3 d; Xset 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)
2 @& `' A0 U4 a3 `set k (k + 1)! a+ b/ N$ A2 L/ \
]
, s7 {5 t$ ?+ R% K8 nset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
# ~# E2 M( ]8 N5 T0 uset global-reputation-list (replace-item j global-reputation-list new)
! j6 f% a" ~! e0 k9 y& oset j (j + 1)" @/ H2 Y- ]6 X8 U
]& R; Y$ O. x; N7 Y \. u
end0 f8 |2 U" l1 k m
/ ]* N' X: C& a% H- p3 j8 `% V" q3 Q& x A" Q0 [1 M# a
7 v, R3 V& h/ ?8 ^' Y! p' Oto get-color
1 r3 o* b9 q* P& |0 { L7 c+ X! b6 W2 N* i. R
set color blue* Z3 |0 u" x, }% R2 u6 ~
end
% w# [/ [, |; B( i7 l/ ^& s+ z$ G+ {' E" s: R9 [% O
to poll-class
/ [# l: G, L8 d3 U9 `5 L( Iend" O5 ~7 B8 Y: ~/ H" c8 ], N9 `
2 d! {& M+ [3 \2 A$ E" x. }to setup-plot1
. [( Z7 Q! R1 t- d1 }1 N, f; |
+ {: H) V' O0 z+ H* z" bset-current-plot "Trends-of-Local-reputation") l' U1 [( N9 }* z
9 x: ~$ h$ W" }& t0 x- T' Vset-plot-x-range 0 xmax" E) L; c. V1 Y) i0 O" h5 f# {4 P& k4 ~
& r1 @5 m0 f, f \, |) Pset-plot-y-range 0.0 ymax
' N! q1 R, p: Bend% Q( p t d: K0 U% J# r* R
: f- K1 m6 p$ n" J R& B% q. J( m
to setup-plot26 l$ d1 R! J- r8 y9 L. m- J! I6 Y
^* r" r1 r! i! q' f k9 U0 v
set-current-plot "Trends-of-global-reputation"
1 @- k& K) O8 v/ u; P& s- }2 R6 {5 C7 s4 E" A" _
set-plot-x-range 0 xmax
5 H2 O# E. [; m5 Y3 x" J9 n3 C# m- k1 l1 N" G( [9 |/ W
set-plot-y-range 0.0 ymax
" [5 @8 I# Q) S4 g$ tend; p) X) J& Y$ K. s( f% M
& { V3 K6 u- s, i$ A( lto setup-plot3! H' q8 I0 q* n
( ?8 F7 {$ o- ^& x2 b5 g3 n0 a/ I2 g
set-current-plot "Trends-of-credibility"8 r) t4 I0 E4 Y, P0 `% r
( v* G+ J- ~' K
set-plot-x-range 0 xmax1 W' h2 D$ d7 R4 i. S9 a7 E+ r
' X) B8 d" h" x0 e* Iset-plot-y-range 0.0 ymax
: p+ U% S( U' \9 I6 ]end$ i. V5 |* Y- A( I% I0 W9 |$ @9 P8 S( c
, `. s8 G- v! [to do-plots+ M) p2 ^2 F8 _& _
set-current-plot "Trends-of-Local-reputation"- l9 G2 S9 v U7 v W3 e1 a+ u
set-current-plot-pen "Honest service"
: h$ E* {( l, {; s% Yend
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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