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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# F5 K: x- S2 J* X0 z7 H
globals[
- b3 `6 v9 J& f$ v8 O9 M& }- B) Xxmax/ A3 w/ Z$ ~, f
ymax
$ q$ v9 E0 _" D' u. o$ r( eglobal-reputation-list' {5 N! \, @1 O0 Q7 V
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;;每一个turtle的全局声誉都存在此LIST中
, D4 D" y5 f6 a, T- m# c6 u# A6 Gcredibility-list
! ~" X# n2 L2 {$ _6 v% X+ j;;每一个turtle的评价可信度
+ o( r% P" f1 ]5 vhonest-service
; K J n! X7 G9 u% munhonest-service0 q: X% @' d# V& ~
oscillation$ K# M0 [4 b& C
rand-dynamic* v) ?+ @+ x; g' G1 r" s! p
]
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turtles-own[
' j _) U" R& L# vtrade-record-all
, b; D# Z7 [8 i& r2 ]) m;;a list of lists,由trade-record-one组成
/ r1 Q4 n6 N9 H4 {trade-record-one' A, S5 C- `) L* N' L. Z- h
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录- T! }$ v- I7 o3 r
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;;[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]]
! u/ r& ?% [3 y! {' |+ 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]8 ]: A1 ^" u1 i% ?9 E
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* N2 L8 U# P+ E& I
neighbor-total
5 i6 y; h6 O# I( Z Q* o" _# o;;记录该turtle的邻居节点的数目+ D& B! \ N9 @8 A- M# i
trade-time* [' b* X# G0 u; y" b
;;当前发生交易的turtle的交易时间, U8 P6 n. L: R; D% i
appraise-give( X1 i2 C* [+ Q+ H
;;当前发生交易时给出的评价
- q5 r/ c( n- [4 O& bappraise-receive1 L! r. {, o3 g' t
;;当前发生交易时收到的评价
2 E5 o( L) ~, R% j3 zappraise-time' _: k2 |& ^2 `6 z. H* p
;;当前发生交易时的评价时间
) S; U9 z& Y; c" z1 ylocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
) |& L- M# E2 S) @. T v, f; @# D) |/ ftrade-times-total
8 ?% i/ Z3 c, P) v7 X2 U+ E% D;;与当前turtle的交易总次数$ h" \) F$ h0 D M9 r9 m# W
trade-money-total! q; ` R7 @4 A$ C# |2 U- a4 _& Z
;;与当前turtle的交易总金额
8 q4 G8 ?2 a8 Llocal-reputation6 ]& u3 f3 f. H- C
global-reputation
* ~2 s1 A/ S4 f* mcredibility
, k# o6 _& A$ M) T;;评价可信度,每次交易后都需要更新
1 h: e" _- f. J. X/ f) L( ~credibility-all
3 _: v. `% o( ]$ W. [;;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& l$ I3 l' Y* ~ j. ^! [* ?/ G$ g' N
$ f ~" o, Y( G" w: r `;;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
) T9 j" B( k, J2 p( P0 G6 L8 w% _credibility-one
! I7 r8 S% i R g' D1 Y' Q;;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% d, ?# q7 [3 z' a! y( r( l l7 n
global-proportion
# O0 Y, W: T7 S6 N9 R6 x! hcustomer* o4 D) U6 d' O" |
customer-no
- j7 v0 m Z; R$ F' V& Itrust-ok
5 B$ a& K* j2 ]) ?: ~trade-record-one-len;;trade-record-one的长度8 r$ _/ v$ n5 B
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8 l+ q% F& k) D/ g;;setup procedure
) U6 K* Z% R4 U1 J$ T7 ?
/ C; ^! v* }+ U$ v! ato setup
; J2 @6 F& E/ D9 x2 u7 [% o# k2 h N/ T. J% V# K6 ]
ca) b$ }. m- ~! x" N1 K7 ?
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initialize-settings6 g3 b+ X n6 w# `- W4 o, p/ z
1 x5 A3 g) K2 L+ }) \( J% icrt people [setup-turtles]
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6 Z: C4 _" d' n& ^) }! Freset-timer
/ \' T) ]& G! H/ W& ?
/ H! O: J. X* R' | apoll-class
7 F. c: `4 f) S
# [$ v! R4 X. `5 Bsetup-plots
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" q: o; v+ }$ [2 F% ado-plots% z5 l/ c6 k# j* h- K
end; T! d( @+ }: M+ {$ ~4 w( y& k
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to initialize-settings
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! t: T! @) y, F# T2 o8 ?set global-reputation-list []4 `# u8 q8 [& z& ]
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set credibility-list n-values people [0.5]* l- V- J- ~2 |1 P6 L
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set honest-service 07 @, w7 K( V0 _) _
3 {& h- V7 ~ r* V) Iset unhonest-service 0' _6 @1 s4 B2 m0 o0 k3 F, L2 R
, H ^. \; B4 b0 Cset oscillation 0
+ m3 w& U. B9 a |' }! W
6 Y* f% ^+ |/ Q; y( t+ kset rand-dynamic 0+ |! h" O7 Q( L" ~1 X7 g4 c
end
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* s, p8 n3 b: X# ]: M jto setup-turtles
' R1 Q6 x4 T E$ k" `; Eset shape "person"+ m0 Z3 s: X" M
setxy random-xcor random-ycor$ i) |4 y! G, G! ^! z
set trade-record-one []
2 t5 Q7 e1 J0 E0 W/ L* A$ c" p/ D- }5 T/ ^6 S; @" [
set trade-record-all n-values people [(list (? + 1) 0 0)] , [) i. C& S8 s! _( l& }$ Y
% F% p0 n T! T! E6 L+ n% f: H; rset trade-record-current []. Q4 n) Q* }5 ~% r8 R, q# v
set credibility-receive []$ v! z5 I( |( H" G$ m9 W8 T6 P1 i* y; l
set local-reputation 0.51 u K. F w. z
set neighbor-total 0
3 ^5 v+ e6 U3 P; i7 h J9 }set trade-times-total 0/ K; {0 k1 j# f# n1 p( L( S
set trade-money-total 04 D. L+ v/ p8 v- C0 n% b' Y
set customer nobody. X/ v0 `6 m6 K& e! N
set credibility-all n-values people [creat-credibility]
. ]* [4 W6 A! x% E' x; L& ^set credibility n-values people [-1]
8 j: k$ _7 r4 G1 ? Iget-color
9 G, [- F8 Q6 u2 P' j: z+ t! @: S7 r0 U+ ]' c7 i' y
end
# N" f9 w) f, n' w" N0 k( _( i$ z7 e* J, j
to-report creat-credibility( ~, D5 Y3 e! {( a+ f3 d
report n-values people [0.5]
0 @" v) V6 p) H9 p Lend
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! G! D6 j5 Y" G/ O9 A5 dto setup-plots, _: g4 R$ `7 [7 m
$ [0 i" B) t/ H V. t" j, i
set xmax 30) V4 R! I4 I. r6 Q
8 n5 J# B3 @( {4 C/ vset ymax 1.0
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3 X) `6 A3 T3 O t- ^9 w- a7 d! V* W; _clear-all-plots
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setup-plot1
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setup-plot2
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setup-plot3
4 Q3 M1 D( F0 V8 ]' H) jend e4 { k w F9 @6 |/ H
+ E- U, U# z& Y' S9 P& x
;;run time procedures
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" Y8 N) k1 h& \9 i+ Oto go
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ask turtles [do-business]- T) L/ B9 S& K `
end
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3 C9 h; H) _2 G# O# Z" rto do-business + s/ u* o/ l, r: T
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V8 c% w( K: U6 \- X: Qrt random 360) X( G8 h( E. y/ `7 W
5 y9 V4 C% `8 Ifd 1
/ G% M+ N0 K8 w6 Z L: o# i0 ]7 H$ W- a$ {2 k- Y8 m( [ H- T$ ~
ifelse(other turtles-here != nobody)[
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4 r1 E- x( s6 P) d- }set customer one-of other turtles-here, }& E; j' I) a3 x0 T
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;; set [customer] of customer myself h" i6 i+ m+ }2 \4 k
% S: [8 G3 m) _& r: m' Aset [trade-record-one] of self item (([who] of customer) - 1)
% l( s9 ~ `- ^+ v[trade-record-all]of self
0 ~4 f3 _- {/ p: Y# Z;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
' d' v9 R* Z1 }5 S1 `2 a X% c5 o- I3 l
$ N' s+ V( [0 i7 D. |- \$ gset [trade-record-one] of customer item (([who] of self) - 1)3 m: `! J- X5 N9 m1 ^3 y
[trade-record-all]of customer( s; F# `. u; N6 ?1 c- `; L2 b! h
3 u' s; D1 |2 p5 c# d Iset [trade-record-one-len] of self length [trade-record-one] of self
0 s5 e8 e$ }; b. N, ?; j( G- e8 {
set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
9 b' U0 H: B1 q# W( ^8 @5 Q$ D;;先求i对j的信任度
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if ([trust-ok] of self)
) R( W: I+ i$ s2 I( |;;根据i对j的信任度来决定是否与j进行交易[
( d6 I; |+ |( V$ h( H" e+ Mask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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% Q. |4 y2 f9 p# T! n! N& pdo-trade
! l/ V4 ~% `( J/ X1 D& ^7 ~. T$ m
: u7 _& J! }5 x3 c: y D qupdate-credibility-ijl: U+ h% @9 t6 d
6 j9 G$ @0 X' rupdate-credibility-list5 O+ o$ _& i- T. C' ]/ l
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update-global-reputation-list( p/ u# |& ]& w' k
" M, B) H h) g1 O$ ]6 h6 Rpoll-class) ^4 c# w7 F; \
" y3 f3 Q& \4 D; G9 oget-color
+ b, s6 \' v" i$ [) \
2 @6 I8 i* Q6 x]]/ e1 F% P) O9 \0 S
8 U# ^/ N5 i- u8 g7 ^2 j
;;如果所得的信任度满足条件,则进行交易
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[
; K9 T+ X2 @- U/ p
, Q |9 ^% q. D$ U+ F+ j8 `6 b( zrt random 360
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fd 1
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* s( O' d8 u! T" n]* }6 I+ |( l/ P$ j) U9 ?; Z
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end' [0 |! ~9 t8 `0 @6 `, H5 {, q2 L
+ z! V) {& N j1 ~to do-trust - r8 X( b: ?" g9 f% a
set trust-ok False4 B& y3 _, F& [; S
: _# r$ i8 x5 e5 E5 l" J% N5 C% [4 O A$ ?# R. Y
let max-trade-times 0
: Q, {% N# n6 `# Qforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]) o' W7 l9 w) k4 M; y4 ^
let max-trade-money 0
% B# z; A: o$ C: uforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]& B2 G q' h( }9 S
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))6 t3 v2 N7 |; _ H; N
" L" ^8 B+ X# Q F$ m0 F& ?5 } M
0 D) X( a' x% [1 N
get-global-proportion. ]& y9 N4 I9 E" E
let trust-value
$ @+ p% [3 i7 w2 tlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)$ v( d& C7 w% K" K. G% Z8 a
if(trust-value > trade-trust-value)) v5 b1 w8 D5 I: v
[set trust-ok true]
& Q+ d6 Q1 I0 K% xend/ [1 ~- |, J8 I
/ ?+ c% Y; i9 a J/ d' Z; o
to get-global-proportion
. m: B0 g8 [8 eifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)3 h r* p. V) c( Y1 Z8 F# W! @* Z
[set global-proportion 0]: C. Z# o" `0 ] E8 E9 u; C0 ~$ s0 a
[let i 0
% |* M+ t: j0 c h( mlet sum-money 0! k0 f' \* D- x
while[ i < people]
. @( }- w6 c( E" D' d; o& q, W[0 x( O7 D) C3 i
if( length (item i* J; `2 q$ |4 f
[trade-record-all] of customer) > 3 )$ Z7 K6 m: z; P
[/ g% `9 \+ n! d+ U& i8 Y/ @; x; h! ?
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
7 Q5 L! x3 |; B. Y]" K3 k! @0 ` O. `
]8 ^1 L* L% }: K% ~& J/ y
let j 0
- N3 @5 @4 k. Q' K9 L0 E, u9 Klet note 0
n! T" Y: C3 h! owhile[ j < people]
7 M9 L7 I1 v. @, Q4 b[* Q: p' ^) A) o: \% E% K& X: z
if( length (item i
8 y( R v3 i* G: W" [[trade-record-all] of customer) > 3 )9 x& L2 v0 N) [6 m- \
[
d; m+ ], d; H5 g, Yifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)) Q9 ^& C4 ~8 ?- b
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 Y" @% L/ Z! y2 t% j
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]4 \, M: y! M- @% B8 D
]4 H! _) ]. k8 Y8 U/ k! n: U- j! Z
]
% [6 o% R9 r1 V4 H6 m% rset global-proportion note
9 m5 n9 Q9 }1 |+ I4 Z. n]
8 k9 B- p& t: { T0 }0 y4 dend3 y( ?: D+ n: Z
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to do-trade( T, Y) C# f* {5 Q- ^
;;这个过程实际上是给双方作出评价的过程
# k# K. E; g, |5 E/ S) `( eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价3 M) I' g7 ?; x- n- Z9 N' ] f" ?$ _
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
, r1 P$ W4 i5 x' J! f5 n, ?, b) @/ `! Wset trade-record-current lput(timer) trade-record-current* V, D$ j" U# H
;;评价时间7 ^$ z4 k, m7 U$ `3 q. \. @& c8 o. p
ask myself [
2 p+ K' y9 ~- F8 d6 hupdate-local-reputation9 V0 i) a/ Y* c% r( X
set trade-record-current lput([local-reputation] of myself) trade-record-current
* _9 W7 F( j" l- [" J]5 q4 z/ M: c( z; V" P8 Q
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself; d8 o9 j% [" r
;;将此次交易的记录加入到trade-record-one中/ u# ]* j" E1 E; e8 }' p/ O. |8 y9 c
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
# P7 K) U6 g% h# e- t& klet note (item 2 trade-record-current )
4 X, d4 c) X: a2 Sset trade-record-current6 c# d; v' a9 y9 i, ~, I( T. Z ?
(replace-item 2 trade-record-current (item 3 trade-record-current))
9 K, m& m# X/ c; iset trade-record-current
6 M, V8 X, y5 a7 e(replace-item 3 trade-record-current note)
7 b- X& o& ?/ A% m! g2 R) d/ {1 e8 N0 i0 Y7 V1 O& X& G
" ~' O5 \$ G+ A* Z% ]* m
ask customer [
# p% ]; u+ Z( \% Y$ a, P: M' aupdate-local-reputation
7 {/ e- m0 G( t0 S: q0 Jset trade-record-current% p; o% s: v3 l. C/ k# b1 G
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 5 L& E/ T# B; @1 [. X( K) j
]
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% @4 z+ T! c5 s% [( x6 A$ t, N r
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer" q1 d; o7 n$ _! r
' c* J `+ o2 l' b2 \
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))9 E8 u N8 i3 k+ Q4 U, P3 f( A
;;将此次交易的记录加入到customer的trade-record-all中
) y9 ? W% G, a' i$ f( c; wend2 F4 F2 F0 h4 P
! L2 Z; j4 ^7 T. @to update-local-reputation' U+ T# Q- }( X; j6 W
set [trade-record-one-len] of myself length [trade-record-one] of myself
8 m+ \5 t* c$ H2 w- ~
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;;if [trade-record-one-len] of myself > 3 " G5 V$ W; [ I( Q
update-neighbor-total
" a$ k6 a/ c) X4 V% Q. Z;;更新邻居节点的数目,在此进行
5 N- G" g& d" f( ]0 H9 flet i 3* a4 U- v Q2 B' N
let sum-time 04 R; x6 e( s: J( ?
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) )
. L2 ~' K/ C" D- G4 r U. sset i
" S$ E( b$ J: z0 B7 {& r( i + 1): z2 i/ T( s* Y1 B* F. e- w
]& f$ u4 Q. r) r" M
let j 3
3 l6 b4 {1 R+ tlet sum-money 0& K0 \$ E$ f5 Q5 y+ U, a
while[j < [trade-record-one-len] of myself]9 X; N* T' `; h, Y# b0 E7 ^0 I) V
[7 s6 O7 d* a& @* o! l) `
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)
: B* k' T4 j* D. J, m4 Q" ^set j
0 Q% [) F( N" s( j + 1)% \' E2 ^; w) ]6 f) T2 } ~
]7 c" `8 n0 z* j9 j V# E( p3 ^
let k 3( K; m9 S/ @& S2 q3 i$ ^
let power 0, o: |' S0 Y+ n p) c* L
let local 0: W x. R$ Y& x/ A" x) a/ S3 z B* m, o- ]
while [k <[trade-record-one-len] of myself]3 }! z$ l1 A5 e1 e: ?
[# ]' I; N& l, F/ x& F% ?# G, w
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)
- O& z6 k7 q; x) }* {/ o7 Lset k (k + 1)9 I& V6 t6 b7 f4 P' U* i
]; X- ]) d+ O; T, H9 L! g
set [local-reputation] of myself (local)
. g. F8 i- ^. `! @: a0 w5 aend
9 t. s0 w4 t0 H8 \
+ X: p6 d; J7 I* l6 m; ?to update-neighbor-total5 V8 w6 b8 w# K& m& f% Z
j V* j$ S& Y/ q# H- ~( R/ \
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]! p; U; Y) u, ~0 }0 M# g
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H) F d- \8 z0 e+ x6 ]
end
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to update-credibility-ijl 4 d+ I" X0 S: P' H
/ F( a6 F. e- S* y" U
;;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。
2 b. e% v" {, I* m3 Flet l 0
* H3 \4 ]8 Y# O8 o3 S& i$ F, zwhile[ l < people ]
& J8 d8 v7 |" X* ]6 V;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer), p, F) i, V1 O. C' \( e0 E
if (trade-record-one-j-l-len > 3)( C: m; S3 u R4 g
[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. ?/ E) k& C! j3 m
let i 3
7 l8 V8 V: ^+ jlet sum-time 0) ` ?, m% W' }
while[i < trade-record-one-len]
& R2 h( c# `; t' Z) k/ Z[2 ^1 W0 S5 i+ i. X9 G- U
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
3 {) i6 t3 v% C& M3 }$ u7 Sset i
0 {; M3 z0 X! l* D+ W9 |1 g( i + 1)3 q( Q/ I7 A7 u% {" l
]
1 A3 t" I. ?0 F7 A# z. flet credibility-i-j-l 02 C% m. P" i4 o ~
;;i评价(j对jl的评价)
! i- t1 O% G M5 }1 Jlet j 3
5 q, m; g0 N4 B2 k$ tlet k 43 S0 k8 {5 p, c3 h
while[j < trade-record-one-len]% x X8 F2 u( e) a8 j
[
: c8 `; i* g) Gwhile [((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
! C9 v" c7 Q$ e- `9 a& Dset 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)& U: i: ?2 I3 R
set j
2 C0 {! ^ ~0 {, o8 b: O( j + 1)/ |/ V/ S5 p- W( H3 t4 b. s
]# c5 Q+ L7 \+ }! F ?1 H
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- | r% Y; _- r( z; m' C+ ]2 s! B5 {* j& C9 Y |/ @5 H* b- A [3 J
8 }7 y# `0 z2 H8 w, ]% w* X% j+ Olet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))* f8 C3 j/ H& m: ^5 L Z& l
;;及时更新i对l的评价质量的评价* h' x% `+ o5 N, U: w- k
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
* k3 @8 t Z% ^3 t5 e* y& Yset l (l + 1)
+ h* G9 J( A9 x; b]
v" s, v: K0 s; a& a, Yend
. G. g# y0 B) F" ~$ g% w; e$ _4 C9 ~) b) M
to update-credibility-list$ q, W7 h; B, ]& X @
let i 0
$ w4 v# E9 j5 o/ b2 S1 `1 Rwhile[i < people]% `5 f) @2 f2 G( P; Y) u" ]
[
' \. j! d$ L$ g6 h8 C: x2 Olet j 0: I" ^& G1 C$ ^ c2 p6 j
let note 0
: E9 z# W( K$ D0 y- \! {8 _/ U( ]+ Alet k 0
" L2 ^8 `# l' p3 I6 I;;计作出过评价的邻居节点的数目
- u$ F. V5 d e0 `5 K/ Kwhile[j < people]1 {. @* z' S: p7 O o
[
) ]# U6 U! @ v) kif (item j( [credibility] of turtle (i + 1)) != -1)/ n7 e M* O) c7 I' f; X+ l8 y
;;判断是否给本turtle的评价质量做出过评价的节点- |& A# J) P8 D% k1 ]3 ]* O+ l
[set note (note + item j ([credibility]of turtle (i + 1)))# f8 i& d, K$ l$ v h5 k0 f
;;*(exp (-(people - 2)))/(people - 2))]
1 H& [8 V/ S4 X5 g9 \set k (k + 1)
4 y: u8 Y* W1 Q1 k( X; J7 ^9 R" _]8 p' u* w3 ?9 z$ P2 ^0 m6 a
set j (j + 1)) m3 m5 d* ? o1 L9 X# _
]
9 j) {/ o* J; wset note (note *(exp (- (1 / k)))/ k)
Y1 b% O3 J9 k$ k0 }2 gset credibility-list (replace-item i credibility-list note)
1 d8 |2 Y' @* M" ^8 q1 Yset i (i + 1)% J1 I# x% z, ?1 m5 z9 l7 [4 Q) _ D
]
) \) S- q1 S" u7 c8 d N: e# k0 ]end n; d/ z/ U0 f
6 s) [$ _9 Q" s8 p# B8 c! v% w0 Q
to update-global-reputation-list" y- g8 `6 F# X4 W0 r
let j 0* d$ W; D, k5 j0 s8 E: o
while[j < people], L5 D1 H) h0 ^6 x8 |# p
[8 R4 k3 P$ z2 S3 k
let new 04 G- x+ C" O* Y T
;;暂存新的一个全局声誉
1 v9 x5 P/ f/ D: f/ A. ]let i 0+ @) R( x, x5 k: s
let sum-money 0
1 K- G$ V; Y& k1 N1 Jlet credibility-money 09 j3 `" l+ M2 b. f# K7 Z3 H, F+ i- k
while [i < people]
# U4 V* x; T, r+ Z( L0 d- F[0 x; q' B4 o- Q
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
+ U8 C& W' F; q5 p- k; L7 oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)) O4 c+ M& j) s' y7 l! Q! r* h
set i (i + 1)& h- M! e! X$ y2 V; p
]
. o9 |5 c/ _. w9 i8 A8 x7 Blet k 0
1 w; P5 z+ a6 N( N8 a% M. Glet new1 0
: K- k2 j9 A2 Z3 f9 nwhile [k < people] u# u. A# s1 v3 y% ^7 _
[+ ^6 f% L7 u. ?0 C7 M( ]
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)1 k% {* P9 r I" r) _
set k (k + 1)
6 D) y x V' V$ c. r9 ~]2 V7 Z& C9 s; J# U: E6 F) m- ^5 H3 h$ B4 [
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
" q& v1 ^3 }7 x* X$ `, |) [set global-reputation-list (replace-item j global-reputation-list new)- x( M: d. s; T( F# u
set j (j + 1)/ i) ~% ?6 p! O2 h4 }* t/ d6 N D
]; Q0 A6 J$ [/ j# f7 c' X3 M
end. z. d9 ]& c- ^) g5 h9 | [2 ?% \2 N, j, P
3 ^3 E! N+ R2 E, R% m2 V. v7 g6 I7 H7 Q P1 K
- L, h5 g. B% s& q5 W
to get-color
6 S! T* x9 Q$ l2 v" o i
8 F: R6 `3 d! D% \' Kset color blue, F+ p# o, c- f
end
0 ?# Z3 z8 Z7 ]/ F
6 _1 C: Q% c3 S) E3 ^2 i" zto poll-class
- g# k$ R$ J- V# d0 R) Xend
- @& |% s6 j- ^! Y, t g
0 r3 W* S' n2 u6 I; {: N. ?to setup-plot16 |+ L3 w) X9 H7 k9 ?5 w. K* p
9 b; V# \5 V3 d7 Jset-current-plot "Trends-of-Local-reputation"
- b# Y% O, z) o% c5 ^5 G9 b p: L4 t1 X6 r/ v) ~' W
set-plot-x-range 0 xmax
' @+ g3 e8 A! S m2 i( \! V4 u Y8 ^1 k0 }; r9 R" G' i3 X
set-plot-y-range 0.0 ymax
: o& `7 W+ |2 m# Y* Y" h( Pend' B2 f9 Y$ ?8 V" ~+ C6 C0 m. k
! E6 c7 C, X! y- z `0 c Eto setup-plot2) {8 C% |: f2 ?& u2 l# Z% k
% U: `% z5 r! C: U
set-current-plot "Trends-of-global-reputation", O# s$ e( o9 F. }* a$ ?! m
5 z6 M7 r- M8 U% ]
set-plot-x-range 0 xmax* n; H: B' I: v1 [- U
# p9 a' }2 X( @ y. oset-plot-y-range 0.0 ymax+ w# Y' j3 \( p- q
end
) j) L1 q- `6 L9 P: f6 v! q( B
8 `6 R8 U4 d* u4 I! Hto setup-plot3' X: [! Z v7 [1 D" g$ P
* u# Q9 v0 Y9 D) \set-current-plot "Trends-of-credibility", e! u9 L% ?$ z/ b r
b$ |% x& s Z' X2 a& q3 j' P1 Jset-plot-x-range 0 xmax
. m3 E7 N! e3 q }- Z( N- Y0 W. {% g- d/ s7 F# U4 O! v
set-plot-y-range 0.0 ymax6 B( \( T8 I# T1 i9 P9 v/ J0 ~
end( `+ b+ D0 m1 C
2 A. q+ \- Q7 _. Q) N$ Bto do-plots0 U R/ q6 m) w' N7 q$ n U
set-current-plot "Trends-of-Local-reputation"
7 t0 v5 G5 p H. ]: i Cset-current-plot-pen "Honest service"
: w X- U/ N" |/ o. g& C' i9 Hend& f9 X$ D% b8 K# O
- C' } c! x! O2 f* k; H$ U, w& o[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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