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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
; l2 A- a+ H/ K+ B2 v6 a5 hglobals[0 G# ~" b; p+ e% U7 Z0 `3 X
xmax
' z, ]0 j2 T# C Dymax
0 \4 f6 i* Z5 m+ ~; g* U/ y8 Xglobal-reputation-list
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;;每一个turtle的全局声誉都存在此LIST中
$ F2 O5 ^; M, x, r( ecredibility-list# N) L4 j3 F3 e
;;每一个turtle的评价可信度
3 b8 _) w$ a8 e, D2 ~2 y+ u- bhonest-service
$ i ?2 P* Z! O9 b5 L& Lunhonest-service
9 r# E7 E w5 n- ~oscillation
# U6 A ^ `5 z, vrand-dynamic6 ~9 i! f$ W2 [% i
]
3 V/ c- [$ \1 k. M: |, d
7 @0 ^+ L' v+ r) x9 }; J9 R5 ^turtles-own[
8 S8 h, w* M2 N" @. D$ Utrade-record-all4 s5 Y( B; L* F) ~
;;a list of lists,由trade-record-one组成
! r4 q; |' h u0 itrade-record-one, w6 J) S. T H+ M% M& f, N# U
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
5 i8 P& C5 c+ a: ]5 n. N5 r* X
; |4 o a6 ]( V; ]: c8 } s;;[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]]
* E8 t+ a7 g( d7 J- N, _) |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]+ w4 k% r8 A- D% R: Y. m
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
! R% ~3 d7 c: F5 V+ X \neighbor-total
* l5 G0 L p& f% c1 s;;记录该turtle的邻居节点的数目
& w. N: b }( `4 N7 p6 Btrade-time7 G8 j$ |9 ? B" V; s. r* ^) o. U
;;当前发生交易的turtle的交易时间
7 r8 U" q4 [% v9 rappraise-give
% [. ]& t5 I2 h, ^" x;;当前发生交易时给出的评价
7 D7 O7 ~& p$ b2 kappraise-receive
2 Q5 [! |3 W- C3 c p;;当前发生交易时收到的评价$ `# F) I8 f7 ^8 R# N+ q8 [
appraise-time
8 r/ g% d/ y( v; j& o! a+ E# Q( A;;当前发生交易时的评价时间
* J; i% b7 n+ @( }5 S& e: I+ p7 wlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉9 H" c* g* k5 I0 N* E# k# H: |5 Q
trade-times-total7 W) m! h; T8 E* P
;;与当前turtle的交易总次数
3 ~% r% k9 O( B, p' {trade-money-total) |9 e( L) h$ B& k
;;与当前turtle的交易总金额5 J0 {: k) {: }
local-reputation) W4 B* O) a% d8 Q0 r9 ?9 H
global-reputation
y5 V/ f# _2 ^3 D* i; C fcredibility$ g# h& q' }4 R) h- W( u: y' h) O F$ a5 _
;;评价可信度,每次交易后都需要更新$ r- b, m( ^6 c
credibility-all! X% b* H, R8 n5 I) L5 e
;;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2 W% d8 K& j/ j! ?/ f3 y3 y
8 {, y. |: S0 y U- R9 n6 A;;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
4 v* Y4 i8 r; K6 s; `credibility-one0 i$ _# M5 C* I
;;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
( L- e6 Y, g# k6 ?4 V( kglobal-proportion. Z6 m) @/ o/ J6 R. ~4 y' t
customer
( z+ y5 k3 ^; ucustomer-no
5 W7 c6 F, a6 |7 m( atrust-ok
/ w+ N, T: X0 a7 K2 T9 dtrade-record-one-len;;trade-record-one的长度
+ q0 z" O j* v# @]
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n7 Q. @( ]% k; N6 M }- Q6 A+ U* n;;setup procedure
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to setup: K; Q. p/ t6 X9 P
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ca8 V8 w/ t7 N- B5 M- z; s* x
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initialize-settings8 ^2 ^3 t! e7 }; l2 `: k
/ q4 R3 r% I" f2 a+ y l( Y2 scrt people [setup-turtles]
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reset-timer
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poll-class
0 j. Z z, L# h) b& o$ i, \2 a A# R! |$ z5 E
setup-plots
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do-plots
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to initialize-settings
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% `3 s/ G5 A; c, M- p3 Gset global-reputation-list []
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set credibility-list n-values people [0.5]7 D/ J% q4 r$ D/ p5 \+ f2 a5 }
0 |- i; n8 l3 \& S5 kset honest-service 0
. c }1 o+ `/ A. ?' x, T3 x% y F& @+ F8 v
set unhonest-service 0
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5 p8 J, r& A+ z' G5 [& ]- oset oscillation 03 @7 j% Q' V* E: A; \4 s0 V6 @3 \
& A, y, T3 V4 c1 o6 B: m5 }. ~( zset rand-dynamic 05 H4 h3 F) d' n
end( ^) O1 P J" ?- W ^/ i ^
# E. T9 G8 ]! x8 _3 tto setup-turtles
H4 ?- N) ?1 W6 s: a) c; sset shape "person"
( C3 _, F5 k7 d' Q- N+ g! d; jsetxy random-xcor random-ycor+ D& T3 ^/ y4 m4 F3 v
set trade-record-one [], ~$ f5 Y* ]3 p& p+ ?/ z+ L
$ F4 \8 ]) n: X( _2 B( Kset trade-record-all n-values people [(list (? + 1) 0 0)]
' x) J; n7 Y. B3 t+ L
, \4 ?# ~* X" n) m8 K9 Q' T7 p& zset trade-record-current []: Z- L8 C+ e( O- m0 w5 E
set credibility-receive []
- a: I( }8 G2 A, k p( ~6 A2 @set local-reputation 0.53 m6 m+ G- n* l0 h3 I2 j) b
set neighbor-total 0
0 g3 j$ B* y. kset trade-times-total 07 X7 f, N3 G, U
set trade-money-total 0) `+ L; W0 c" }7 ^8 Z" t
set customer nobody/ U1 c. W: z5 q# i
set credibility-all n-values people [creat-credibility]/ F9 A2 c* T( @; [' f
set credibility n-values people [-1]
) z0 q H5 n8 W& aget-color
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6 D5 L# S( d* g1 I G& Y/ Pend4 Q3 ?5 D6 W l4 S
$ D$ t* S! H* `6 v; c: |* n
to-report creat-credibility
5 R" g! M2 ]% n. V# \2 areport n-values people [0.5]' D" v9 i+ T5 G& U1 u- U- ~4 V$ c
end$ f( ^* t' |/ K. e2 O6 K1 m5 r
3 @& j G, \+ N$ {7 ?* j! Ito setup-plots
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, @; V k0 i2 tset xmax 30$ J1 e( y! O$ M% ~. }( Z$ }
" y- k0 T4 A9 ?( R ?4 {
set ymax 1.01 j: N& V* p! V3 [ L9 P* P0 `4 T% n9 \
" R/ F5 g6 W6 X5 x$ vclear-all-plots/ }. f1 S- G0 q
& |1 g' {% B5 W }: fsetup-plot1
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setup-plot2
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8 v9 l+ G# }! c0 W$ y: Fsetup-plot3
; I4 L+ O# N. w5 e! W) |* X% qend
& l/ x* Z' ^' R0 [8 b
- I7 o- Y" M) i7 s' S7 [;;run time procedures# P Q& u3 a: I9 n$ Y- x
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to go$ J! a2 v. ^) @% c o7 L
/ Q. d, D# h1 `$ ~7 Y3 K$ N' Cask turtles [do-business]2 @1 _2 |' w2 }4 h1 q+ @
end
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to do-business
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5 c A1 x" x6 A! M+ W( H% ], }# B6 `6 _4 ?
rt random 360
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" f- _6 h2 T8 L! H( a# @* e* s4 {4 Kfd 1
# ~2 o% b' q- \# O! N7 {1 V- z+ E9 m: }4 b( V9 n6 b3 Q/ ^
ifelse(other turtles-here != nobody)[
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' w) f- w# G% j* y0 A& kset customer one-of other turtles-here
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;; set [customer] of customer myself
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. w/ x" ~% ?( l/ o6 B: |% `1 A: dset [trade-record-one] of self item (([who] of customer) - 1)
: t; W/ V' L8 w) c- ]8 s[trade-record-all]of self" v, Y8 A; {; o
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self0 V' y8 K7 E# h+ m' f/ U# O: [
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set [trade-record-one] of customer item (([who] of self) - 1). t3 a1 T- g0 |
[trade-record-all]of customer
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4 g" c3 t! V8 T* a, M% qset [trade-record-one-len] of self length [trade-record-one] of self! r! B5 f$ F2 ]$ ]$ m( h
8 M, S+ O3 z4 ^1 i9 J% Y- `set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
2 ^! u/ E/ ]8 U8 h+ w;;先求i对j的信任度' f/ M( E/ x* H* {7 V4 l/ q
. E% V S7 k9 q* F( z( L$ X0 nif ([trust-ok] of self)3 W9 x" r% A) n3 y" o V- w, d
;;根据i对j的信任度来决定是否与j进行交易[' c! [* P$ T; i v
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 M: b2 s* K* ] o$ C7 B* b# s* i/ E
1 I7 t3 v8 k, n U[
2 m: e7 C. N2 H7 Q1 L7 m
) k, A7 |0 k W' qdo-trade7 `% d5 I) M) O. c7 J; }! {% i4 g
9 g+ g' ^$ ]/ M" l, i
update-credibility-ijl: ?. u+ \! V& i1 p0 X: _
% q( Q! |3 I) x5 ?( Dupdate-credibility-list
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update-global-reputation-list9 I9 F. o' E& }
: s5 p2 }1 ]7 U: ~2 D+ J) }poll-class0 p j) ~ @5 s, H" _
9 A5 r5 b8 {9 P5 }get-color
4 B1 e- F' o! u7 b+ Q- t3 s
# E9 l: t* k: O6 e]]
2 b; [( X8 ` f. { j
[) |9 y- E1 k% Q;;如果所得的信任度满足条件,则进行交易& J% F) ]/ Y" P' a
3 g4 y$ P9 {; R: c
[
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8 O5 Z( m9 ]8 r4 O" v9 m7 M4 l0 qrt random 360& W2 F( w$ N" }
( m, Z, H6 V$ v4 F; `8 H8 v% Gfd 1
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_( D. H: z: M- `5 k]. R8 B' i* I3 }0 G S: u. c
9 ?# q+ f5 d( M. P6 Y
end
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! u$ S( j! ]& @2 z% o% |1 }to do-trust
) g- \! U! ^# N2 w% @* J& \set trust-ok False$ r. `+ x" @: r
) W7 Z% k& l* L7 f }( t
2 o- y7 c& l9 P1 L1 |3 _let max-trade-times 0
: f/ @* Y i D/ @1 _7 Y% W/ @foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
! _0 x! V( c O- Q' `let max-trade-money 0
! O" d" i% @7 `, K6 q1 w6 Nforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]9 o m6 y$ I: G; |: V1 w
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
$ ^) L; m$ C# ^( j" b9 S% w' x+ M
/ Q5 P8 I) }: u1 ]) W- B4 [: C3 z. C+ ?. [$ b
get-global-proportion
+ I! D5 v' F6 V) y7 A" {$ Elet trust-value, R$ L5 D! g+ G" f+ A- H. X2 W
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)
E: F9 B2 f# {2 f1 E0 _if(trust-value > trade-trust-value)
. }1 w5 B+ t7 z3 w[set trust-ok true]
$ T) S: ?3 K" o, Eend' P, [. G# `% A+ w% f1 ^ _
1 L% G8 ]$ c+ g( h2 p% z; n
to get-global-proportion
8 x5 L/ W( W0 J7 ~* Nifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3): j D% ]0 O' v$ q& o( R" m, e
[set global-proportion 0]
/ j4 r; j& n* Y[let i 0
0 B; T& K; V/ v7 o7 Vlet sum-money 0
) G& c) u$ K" p! i5 }0 y" r, ~% z! iwhile[ i < people]
4 a- M p" K2 n) e9 y6 y0 b[: e) {! N. w( a
if( length (item i
: L5 z+ a8 C6 }3 w[trade-record-all] of customer) > 3 )* `2 m! t0 k7 ~- X* ^5 C
[
0 O# B$ P& U# v. Z, M' M$ |set sum-money (sum-money + item 2(item i [trade-record-all] of myself)). h5 z8 ~; ~2 N7 F; ~
]4 |6 b e7 o$ R! f/ x* `
]
. L3 D; L) P7 O" l- p1 Dlet j 0/ s8 e- \$ p# y: N; o+ x" T
let note 0
" I. R$ e( t; N1 k& k9 X6 ~1 jwhile[ j < people]% m" R+ d8 w: g% e% f1 J2 z
[& m& @# f1 \- i' G3 \0 h
if( length (item i
2 Q/ X; x- w% f6 A0 I( @/ J8 X; [[trade-record-all] of customer) > 3 )
) s8 v- Q( t7 Y) r4 D[
7 C9 K0 R3 E5 \! {' W# aifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
1 A$ W4 R; P3 M* _9 C' R/ m5 r[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]9 `7 O( @0 `) S% X/ Z& e
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
* b P% q& F* g) Z3 p/ j]
3 k: ^9 P+ c! y* J4 Z/ n" S]- O8 p- V; R' h, \1 P
set global-proportion note
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7 a0 I1 C" l5 Gend
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to do-trade t3 `8 j# f9 m* u# `5 P
;;这个过程实际上是给双方作出评价的过程
3 p* E( N! p5 E+ ~set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
+ p, r1 @+ m2 w+ }- y4 hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
6 L0 \, R2 Y( Z% p: g" n0 Lset trade-record-current lput(timer) trade-record-current
" ~8 n8 i# Q, t9 ?6 g% ];;评价时间
0 ~# F! e8 [6 o3 G) _ask myself [) ? r7 `+ S! {+ Y8 ?
update-local-reputation
8 n0 L9 d! m% ?" F4 Oset trade-record-current lput([local-reputation] of myself) trade-record-current
0 q8 ~, n% l7 Z6 d% ^) `]& H* q; ~. K: S0 i* q
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
9 _* r- @1 x' ^$ ?;;将此次交易的记录加入到trade-record-one中9 X6 L& [5 M: C+ j
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)5 x2 w% K( H$ s
let note (item 2 trade-record-current )* N% y; A2 _/ }) _: t
set trade-record-current
' ^0 z ?2 u& @(replace-item 2 trade-record-current (item 3 trade-record-current))
* y3 \! V5 r4 E9 B& Pset trade-record-current, ^% S3 R% |- ]5 O- w' R* A
(replace-item 3 trade-record-current note)
* ~3 \5 ^* J4 j8 `* m+ F& n% x6 m
7 |/ m. m( i& r- e8 B7 U" W) c! }% k' F( t* T& Q
ask customer [
# L. M) c0 Q4 R' i+ ^8 m0 ~update-local-reputation
, @8 E: v. }3 g' ]3 iset trade-record-current
# H4 [( q7 ^! B4 R(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
% [. r2 v3 y+ L6 O5 x9 z# A]8 }3 x; q5 T' r
z: G$ U: A1 b$ I. \& i, U7 f6 v6 Q" L0 l! ? e" {' s
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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& i. {+ y' @* B7 T. r0 Hset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))) k; O; ^8 f1 D9 k, W7 V
;;将此次交易的记录加入到customer的trade-record-all中
* \4 b" C' F+ J! W [$ _end
4 c2 K% X/ }& Q7 _( s' e- `
, H4 j' _, y% _0 z6 Z' |to update-local-reputation$ i8 M$ q6 k$ ?2 R. L+ \$ J. C: C
set [trade-record-one-len] of myself length [trade-record-one] of myself
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;;if [trade-record-one-len] of myself > 3
0 {: h5 l# C7 K6 X$ `! Dupdate-neighbor-total
0 l- |* a, x0 P; p( @;;更新邻居节点的数目,在此进行
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$ I4 ~. t4 H( P7 _- G* N$ nlet sum-time 0. p$ Q! J6 Q; q
while[i < [trade-record-one-len] of myself]
. {( U+ r) N9 P1 E[! b' J0 t3 K' m5 o1 {4 e2 o% y
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )& L' j0 t) q. {$ i3 G) d* F- B" P
set i
9 k5 ^) ]; V, B0 o' [( i + 1)
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let j 3
7 S7 v- @( m% V' B% Alet sum-money 06 Q5 N8 E. V$ b( Z$ x
while[j < [trade-record-one-len] of myself]$ \: d5 Y4 x4 E4 }; z
[- j9 i4 r' S. ?
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)
) |; x' _" |4 D1 Lset j- D8 W% _% v8 Y5 S- B
( j + 1)+ k% Y E+ \4 v" w7 q
]
# e7 X. ?) Q+ C' e% y2 K, p* I3 ^let k 36 i& o3 ^% Q$ z5 z8 \9 X# y4 s9 g
let power 05 V0 x0 Z* r; `* y; r& p
let local 03 j! ~% S P. ?2 s* Q4 J! w5 I; O
while [k <[trade-record-one-len] of myself]5 _- g6 d; a! n: J$ U5 v) S+ ?2 r" s( I
[" O) t! k. N$ Q" T v
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) : \, [1 x, D- w) o# i3 L! n: J
set k (k + 1)
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3 a9 {# T' F' O/ H$ u0 a5 W6 Mset [local-reputation] of myself (local)
% ?& F: T, o2 Z0 Y7 g6 Xend
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to update-neighbor-total" g. l. n( h. y2 }8 }
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]- {% y9 b8 J6 ~4 w0 w) A2 ?! R
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end
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to update-credibility-ijl
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4 f0 X3 i3 Q. J+ R, j;;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。
0 ~0 v) _* B! t; @& i& j9 v' jlet l 0
- b: R; C/ m" ]% W# H; b0 _while[ l < people ]! g' ?) I5 y5 d0 o
;;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)
7 k& w9 P* g6 w) D) q& u" \2 [if (trade-record-one-j-l-len > 3)
% S8 U( b6 b( e' 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-one5 m9 {5 `8 @8 ]
let i 3
$ r! W9 U7 Z) F$ \let sum-time 0
5 ~/ O$ V5 w1 y: _while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ x2 C, a' ~/ Q; n- ?1 oset i
$ `: [7 Q' }& C( i + 1)
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let credibility-i-j-l 09 y) M. I; K+ _$ j& t3 }9 r4 X
;;i评价(j对jl的评价)
( Q- I3 n# o5 O! a0 v. v. Tlet j 3) Q- Q+ }8 B8 b) s7 d
let k 4- e$ D8 _- ]+ h3 e% W& w8 U) E
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3 W& R9 ^! a! u4 w! H, A* H) Q) K
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)
G# S4 C) {0 Eset j0 Z7 z3 i+ _9 b V v
( j + 1)
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. C2 S) J# o7 Y1 }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 ))
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: f6 l! a4 n8 ^. elet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
( ?4 i/ l/ @# c' _- }1 w;;及时更新i对l的评价质量的评价
( G" I/ W; J; `; v; X' L6 `set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
" A L: y7 S( K& y3 h8 J: E1 p! ^set l (l + 1)
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" @5 G3 W( W. _( W Qend
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6 `# X& f' O3 Lto update-credibility-list% X9 r9 x, v/ R
let i 0
% D1 H$ m# i: @1 q H. a! J- vwhile[i < people]
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0 m) a$ x1 e( B4 Y- X) [: nlet j 0
2 p' ~2 f2 I, o$ U3 qlet note 01 b6 |2 \) V! Q9 l1 O
let k 0
# _: p3 i$ C: K! p) h1 ];;计作出过评价的邻居节点的数目2 n0 N3 H& |9 S' X
while[j < people]- ?! u* b; Y% Y: m$ S% E( w. h
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if (item j( [credibility] of turtle (i + 1)) != -1)
+ {; k5 f/ s& H& ~$ d. v;;判断是否给本turtle的评价质量做出过评价的节点
( q* V% k7 |5 o8 B) Y/ A[set note (note + item j ([credibility]of turtle (i + 1)))
% d! `" q) c- `;;*(exp (-(people - 2)))/(people - 2))]0 a5 r6 F7 s0 Q/ \8 K. p
set k (k + 1)
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& P# w8 \0 t+ {! Xset j (j + 1)2 l& z K( m) N, h& U: P
]
* |3 g- {- |5 i; lset note (note *(exp (- (1 / k)))/ k)& H, L1 ~& M% U0 m
set credibility-list (replace-item i credibility-list note)+ \, Q i6 M) p
set i (i + 1)
( R" U5 y) s0 Y/ @; \4 ?! G, ^]8 v' i5 v% Y v0 d4 @
end- A" I7 T1 m: X6 D2 i5 g1 z
+ l5 q% ?& K: s6 R1 D, D* D! Z- Vto update-global-reputation-list; L. q# u( k w$ P
let j 0
& r b" g8 w+ U. j$ p+ b9 a! _while[j < people]
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& M8 U! J y3 v$ \let new 04 F d# w: r z+ _
;;暂存新的一个全局声誉; K x' p, N2 ]9 j- _' p! Y
let i 0
. P, `# y9 B% y# \1 }+ e& v" Vlet sum-money 0
/ W$ |/ G3 a$ o" M& S- ~let credibility-money 0* |% N a$ w$ D
while [i < people]& ]0 k5 Q6 E' |( u3 O# P6 G4 X
[* K' s- r2 V8 _
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))9 Y+ _( O+ ]- t! V/ X; b7 M/ e
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
' H" J: V& c# } m0 @4 X* Tset i (i + 1)
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let k 0
$ T$ ?' `& K% o; B2 K& ~3 g- Elet new1 08 Q1 |% c1 Y G- O0 [( R
while [k < people]" j# j1 ?! f; u
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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)
/ z# G+ v! p" z4 Q7 ~set k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( U, v. U- N1 s5 K1 V, N6 Iset global-reputation-list (replace-item j global-reputation-list new)
: @# J8 H! d4 D! G$ \, Nset j (j + 1) I1 D; @/ u; d( ]" f
]
. w" [) z6 ~' i1 aend
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* T7 z' ~ c5 `, r6 [) {4 a3 B: w1 C; jto get-color' l4 s2 x7 r8 Y' {: ?7 E
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set color blue
5 g4 i" H2 x; F5 y5 ?) D& \end0 e1 Z6 t. |9 B% s0 f6 H/ Q
1 `6 ^: U+ y. U. D3 z
to poll-class3 }# p- E S4 w. g: ]! ?4 O
end
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to setup-plot15 E8 n1 S$ o8 W. Q2 U
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set-current-plot "Trends-of-Local-reputation". H( h4 G& u* t9 q( R& I8 N9 R
2 z" s/ R( p' ]% Gset-plot-x-range 0 xmax+ _8 P! x9 r2 C+ X4 }
/ K8 p' ^; a8 \7 o5 S( r% Eset-plot-y-range 0.0 ymax; J" M& l( n: ^! i
end
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0 u' Y& f! e6 J9 {5 `( E4 \to setup-plot2
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: e! J/ H, Q4 O+ N& }* F8 x& Aset-current-plot "Trends-of-global-reputation"
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set-plot-x-range 0 xmax$ u/ J" R+ P2 Y# V
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set-plot-y-range 0.0 ymax& O8 p6 j O: d8 f* [: I: K% G7 |
end4 I7 a) t" I# ~2 X
3 T9 ~; b$ _- l9 f! q- y) } ^
to setup-plot3
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2 d" r h0 d* {' p# _- Rset-current-plot "Trends-of-credibility"4 B6 c, I m* K9 i& v
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set-plot-x-range 0 xmax
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7 t& y9 a$ O5 m: M3 b# i8 S2 J) }set-plot-y-range 0.0 ymax8 R; w0 p6 V' e6 e# @
end
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to do-plots
! |' O+ n9 Z( ^set-current-plot "Trends-of-Local-reputation"
- V- Y$ E9 {7 H. w9 f" Tset-current-plot-pen "Honest service"
. R" d9 Y- q6 p" B. {end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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