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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, c& J* {. f7 [
globals[, ?6 o G+ w$ U/ i: o9 f% s- {
xmax$ z" ], `3 v. ?! D1 X- | I( H: O
ymax4 M$ X" q4 |- H. ?! p' j, w- S% U
global-reputation-list
/ b, q( }2 O& ^( D" e8 {# d
9 V% j8 W4 h& a7 U3 a8 q) C( ]+ c;;每一个turtle的全局声誉都存在此LIST中5 V2 t t! z" |' P2 p
credibility-list& [0 [* c5 M% U6 e
;;每一个turtle的评价可信度+ V( N5 L2 d0 \9 `2 G$ z1 {
honest-service8 H* _4 Y* A" ]$ V& E6 k5 E. S/ d
unhonest-service
" i! L0 @8 v3 J2 l9 b& P4 Boscillation
) k8 O$ z+ Z! \rand-dynamic
7 J# _) {* Y- H]
7 k1 R; g1 U5 C6 J n
3 g0 J5 o+ |, M. i5 c% zturtles-own[3 [1 }8 L* Z6 s0 a; e J* J
trade-record-all
3 Z$ Z4 k' p3 P$ k+ I4 G. r9 ^! A' ];;a list of lists,由trade-record-one组成: S& Y6 H+ z; l3 R( ~
trade-record-one
7 Y) ]# P9 M. u, O: k; L! P2 M;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
6 b+ t- O. ]$ r3 M/ {* o
' m; d( V# k* u3 M& Z. z;;[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]]
" e! p9 v& I$ i7 J' ktrade-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]
! z" n$ r1 O7 w/ S4 ~9 Xcredibility-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
9 K3 b' H$ O" jneighbor-total; f* C2 c0 K: I6 S* u2 R+ t
;;记录该turtle的邻居节点的数目# G! ?2 H7 R" A8 s) W- G6 v
trade-time7 j# G; E$ R6 A- V) Q# h
;;当前发生交易的turtle的交易时间5 c: J: u I b. T
appraise-give1 h( j9 ^1 Z. v* u
;;当前发生交易时给出的评价
* f2 ?$ A; W, Q B8 B$ [appraise-receive
% n' {( N2 y5 _- K% v;;当前发生交易时收到的评价$ X5 R/ v1 B/ o6 J# S! Y
appraise-time4 }4 {2 x1 l$ }1 H6 E- H- _5 M
;;当前发生交易时的评价时间" ?% f2 T5 y3 [2 j- ?' |
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
8 A9 `+ b( u/ o; H2 O% P4 ntrade-times-total
: r" E1 ]( R6 b- R6 {: @ z;;与当前turtle的交易总次数& b/ L' M( }" d( [ @, g. n- h! [
trade-money-total
: F5 `& ^4 f" y. r% K;;与当前turtle的交易总金额3 @: {* v0 c8 v8 Q+ S6 K& C
local-reputation
1 l, w# ^' @& bglobal-reputation6 A2 d; p3 t" J
credibility8 D# I- U# o+ U4 I9 B1 L" Z B
;;评价可信度,每次交易后都需要更新& F, j' n, @: O
credibility-all
9 W9 D; C7 b* g/ G# E7 e' c* 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
4 O4 Y4 @0 B; H- e4 x9 c( ^7 q6 ?: U, K8 s6 f) d+ r" u
;;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
8 q9 G3 |1 {' Y7 ucredibility-one. p3 b4 o, r" j2 L( N
;;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
; C5 @! J; b5 f) k4 x: Rglobal-proportion
+ E& f8 B' `$ [+ p" Scustomer1 k7 V l' o2 e+ ?4 I
customer-no6 I) l/ \$ m. B( A
trust-ok
8 n7 h" k: k5 i; X( Ftrade-record-one-len;;trade-record-one的长度
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$ `- M& z0 r8 p# V0 a9 `: b; r& T {" K$ n9 X& S9 S' B+ l
;;setup procedure2 t% }: i1 G0 e- n% z
; A1 X T- ]$ D u# |( Q9 B: O) c
to setup
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ca! J3 b) v5 f! L& I! x$ N7 g+ N
f6 z* L" C/ Q( k6 v* b
initialize-settings% s! s* O0 D" U, C( y- E, V
0 Q8 J% d. x! c; q/ U% S( [crt people [setup-turtles]6 N1 D& x/ u( u# `2 ?
9 W$ z& s# O% | h# v) G! T
reset-timer
! \) ~# |/ x% ]5 s4 d0 [" h, S( ?: _/ a i, S" F
poll-class
, {: g$ U. m/ f( h* N' P: s9 E! M# E, g2 E8 z
setup-plots7 b: B6 U7 c, Z% q/ Q# U9 U2 s
) k) j. E4 P% |
do-plots
6 t# J; y1 `$ p. i" \! Yend
( E+ w& e/ q) s# l( P: ~3 \8 A, Y6 q% x7 {% r s) u3 W! R
to initialize-settings
1 ]3 ~' i }7 h7 g7 B% C1 P: g x
' F8 t3 q* v; L( ?3 @0 r* Aset global-reputation-list []' N& ~2 w) {8 Z9 |" Q. A
' u$ \4 ]" K5 y: b' ?$ e+ `8 p; {
set credibility-list n-values people [0.5]2 k n6 A2 @2 Y5 T) ?6 F
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set honest-service 0
; @" A; q* f& d5 ~% J8 Z4 J0 i- F1 J2 z2 Q
set unhonest-service 0
# S# n- C: I' I" |; s8 F2 A: u, r. g# K/ h% C5 P1 D
set oscillation 0
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set rand-dynamic 0
p* D, E- a2 s0 _3 m' r1 ]end) q& g* }3 p1 M! L' I8 d& r
% x# W4 o+ K% D& ]
to setup-turtles * o2 l6 d8 K/ }
set shape "person"
! j% u9 I/ E; B8 t- ksetxy random-xcor random-ycor0 r; n* @7 Q. e( y2 G7 {6 ?
set trade-record-one []- E/ Z# K) E: g! E3 X7 \
2 O4 G( |( v4 k/ _* ~
set trade-record-all n-values people [(list (? + 1) 0 0)] 5 L8 x# m: r+ D+ _6 c( `4 w
5 k7 p5 Q. d4 @ O9 Q7 P
set trade-record-current []9 Z( ?' H# p5 f+ W
set credibility-receive []
* D2 J) W2 [8 w" F) S6 Rset local-reputation 0.51 f" U7 S U0 w8 P6 ?3 T
set neighbor-total 0) W2 }* E- [3 m# c/ S
set trade-times-total 0+ u/ `; N: @) W: {1 k3 z) C: s
set trade-money-total 0
& f3 l' a' g& V) ^0 s1 D: Yset customer nobody! {# N7 O# }9 r+ d5 G5 \; ^1 }
set credibility-all n-values people [creat-credibility]
b' V4 ^' q0 Q& a9 Mset credibility n-values people [-1]( }0 D- P$ n( |' ~* I3 X% F
get-color0 i1 }/ X: O( _& ]+ V
2 ]2 I @. s- f$ ^- c5 H/ Pend$ A" _* ?& n, Y5 O
9 s8 p# o2 y% ]. Q% r' t0 g9 bto-report creat-credibility2 X3 q5 R7 b# o8 W4 ?2 A
report n-values people [0.5]
* g: d- \9 A7 U+ }1 pend& b& T5 h; R6 G/ ?) D# F8 u
( q# X' ~3 ^) a6 d! m. R1 Q( A/ {8 \+ cto setup-plots
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1 d, }0 f% x9 uset xmax 306 v0 Y) u) |- |1 Q1 `" G
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set ymax 1.0
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# e! T2 I- ?+ j9 G# nclear-all-plots! P4 ]. ^& D+ D& r ^/ b7 |3 Y2 I
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setup-plot1, r* i% _1 R0 m4 S2 z' \
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setup-plot28 {$ i3 i9 X: t' o2 h# ? q( Z
: W; `; |% K4 N0 R+ `setup-plot3& V4 z' n% N. l( a: a$ @6 B1 t0 ^* A
end
/ i6 _$ {: d; r+ H" i- A7 l3 L$ U2 T; Y
;;run time procedures
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' D4 i8 l$ c. J) t! N2 Rto go
' s' ?& [; f" r1 c- ]$ r, x- Y; s: E
ask turtles [do-business]
& D" v5 a9 y! Rend
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to do-business - W( D( F; j! D$ K1 X' [
4 O4 t% K5 x8 j! v( {
8 q2 g1 J" M+ ?7 ?7 Art random 360
2 [. d) i5 p- _: }. i! V, X6 u; j9 h, Q0 w( T( i
fd 14 W a9 c `0 d. H. m0 y
& z' b+ _+ i+ n* a- Difelse(other turtles-here != nobody)[) ^) S/ h8 m4 e! k- u
7 C/ |" Y$ y/ `+ ^5 ^set customer one-of other turtles-here
# h5 H( m* c) h& p
) w3 s6 c9 g9 F+ N. n% s;; set [customer] of customer myself( n0 P6 z G" i" w! e0 t3 b
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set [trade-record-one] of self item (([who] of customer) - 1)
+ l% s3 x7 i* U[trade-record-all]of self! d7 _6 b( M1 p0 `* s: U) u
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)& e/ E6 O; }5 t# Z6 x
[trade-record-all]of customer
- G/ u5 e) Z( @2 O! i' F& V
; _: C/ C5 Z/ [set [trade-record-one-len] of self length [trade-record-one] of self) d% m" ?; z8 H* ~% S
2 u, h/ S# v: |1 gset trade-record-current( list (timer) (random money-upper-limit))
* O/ d9 i y% C2 z. e5 G" f
- \5 a# R3 C9 P' z. Eask self [do-trust]& g/ b' G7 f4 D o6 f
;;先求i对j的信任度; {+ k1 _' l; n9 ?6 C
$ Q7 m" B& A1 ~/ ^
if ([trust-ok] of self)* J6 A, _: m$ D+ c. g" `8 g V: ^
;;根据i对j的信任度来决定是否与j进行交易[
& d% A' Y, M/ L9 pask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
4 x4 M0 A% L; M3 |3 {/ h( d- h
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( {; K9 ?& J& o5 qdo-trade& p' [! e" W' J* [0 j
1 z, W3 N8 N8 ^8 N( ~update-credibility-ijl) f$ A( G- k4 f* V
1 o3 n. ^2 q; Fupdate-credibility-list
. i2 ~; r+ a" I2 l* \& e4 W% w) {
5 m/ o5 y, ?' w/ O4 ^- iupdate-global-reputation-list
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poll-class& u* i3 ?4 l# X) ]. s( X$ G
" N5 W9 A/ L1 K+ q5 q
get-color. i; W' O3 |7 X5 [
% V9 N& n7 I) `! _]]
+ e& L8 s* J( x) @6 o
6 z' e Y; j1 T6 t4 g; W;;如果所得的信任度满足条件,则进行交易: P( p7 u7 Y: C; H6 @0 G$ U. U* `6 i
! r8 E9 P4 G; Y! o% L5 v[+ m7 L( j. L5 V
u; Q: [# e& w" v8 }4 E4 U
rt random 360% d0 R3 d9 V- D$ M5 ~
0 e8 `" a. B- @! H* b ^+ sfd 1
5 k; ?! v! e0 |- k p( ]' P; e9 ~1 q6 C) F" E" Y
]
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end0 z* _! i y# w: b- F2 P4 _
! c* h4 q" y3 {* E0 mto do-trust
; A6 b+ |$ G* c- e- `set trust-ok False
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+ a; |3 ?5 W9 m$ j. Hlet max-trade-times 0
( [( c7 Z5 `: @' R* @' b3 ~foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]6 H* L4 m/ N) ]( ?
let max-trade-money 0
: f4 O" n1 h6 b5 d+ {foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
& C- L( P( A. e# K& D. `let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
) ~: l5 B" i4 t6 \% Y
/ V. |. `/ ]) @/ s5 g" ]$ T# C6 x, y( g, T0 K/ g
get-global-proportion
2 e s+ e& H& H# j2 K! Ylet trust-value; k. f& { f$ f% _4 \6 I1 ?
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)# c) R- F$ e% [6 g
if(trust-value > trade-trust-value)' E' C8 r2 B F5 H; s- {
[set trust-ok true] ?7 J8 U6 V/ f
end
8 a0 b- k6 d9 B
3 m: G9 H! W4 a9 rto get-global-proportion
. i V( N* A0 b Difelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)8 g4 A) }7 ?% s8 ^# E7 z) ^4 h
[set global-proportion 0]
1 e2 G' S2 J# L- U9 O[let i 0
" V+ B$ y$ Q+ j5 j; wlet sum-money 0
" ~7 |- J. r( l9 r/ Owhile[ i < people]
3 G# }. P i [! i5 I) N5 e[
0 X3 `" V8 K. iif( length (item i0 A" q( Q' ~9 |( Q" T$ u6 t
[trade-record-all] of customer) > 3 )
& |: K+ f3 R2 A; j+ e[
! T( i, K: H9 N* e. n4 pset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
& O, e9 b5 j) a3 `9 v]6 Y) @2 X! V) v6 W: n9 P5 V
]
. z" s4 E& o9 u( |; W4 Y# Clet j 0
: p6 |# n, @( v0 R% a% k+ l3 W5 @let note 0
, e. d! ^( R3 A' v; Dwhile[ j < people]
9 z) Q+ i" ?$ I/ M P5 q- {8 z[3 [* P' o" Z! K: x, B
if( length (item i) I1 T3 X1 Z( s# B2 _
[trade-record-all] of customer) > 3 )/ r' z9 K# x) U& W; M
[
2 `! h! \, ~/ n( Difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# L2 F* a1 p$ S" f[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
% z# w: H* X( ^ g' u& Q, S[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
1 Y0 P/ a7 |0 s0 i; r2 D7 i7 ?- T]) q G! c4 ]+ |/ s, k8 h6 A- A
]
& J8 f: _# m) Rset global-proportion note: d! W5 S5 j4 G- k; P
]
; h" C3 T+ P7 h6 Q* G( y0 c8 Gend+ C$ T; i1 J" x. {1 v5 R, g
8 C N% L9 T' F( u/ L+ z3 jto do-trade
1 f ^/ Z3 C: h& |6 h;;这个过程实际上是给双方作出评价的过程1 q9 G* s6 p2 X& [* u/ L! `
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价3 [ Q" U$ Y0 {# ^2 l
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
. |8 t; F+ Y2 a2 lset trade-record-current lput(timer) trade-record-current
4 o, y8 K5 E) u) d;;评价时间. }% L. C3 j0 |. U! |7 Z0 U
ask myself [! I- j7 b; R. q- b1 `" n. m& l
update-local-reputation( o7 l1 G& \* o* i- U
set trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) Z' C9 L) q" d% D* v$ Z" t: x$ ]
;;将此次交易的记录加入到trade-record-one中
1 |, [) ~0 \ J) [: xset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
, Z. Q& t1 h% p: T1 {7 F- `. X9 [8 ?let note (item 2 trade-record-current ); S6 \' Z) b/ ~5 I; _9 W# z2 v
set trade-record-current
* I3 ]5 G1 \. x4 W9 I7 G(replace-item 2 trade-record-current (item 3 trade-record-current))
# l' P3 B! {2 K7 L: p6 o# qset trade-record-current
# u8 a& d' y) ]: H* z(replace-item 3 trade-record-current note)
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7 G" \/ C5 L5 M" N2 Pask customer [/ T: t& T* ]1 ^; P
update-local-reputation7 {' A$ ]' P/ d% A. J# c2 f* D/ S
set trade-record-current4 D. d7 ^- n$ \* |: D
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) & T$ B8 B+ K0 f
]
2 E$ v& S# E; f8 a( V+ d' F8 f
' U- B# `( Q# b+ y Q1 v# \+ x
# S7 k* x$ d3 c% d% nset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer( C( p$ {8 N; O
3 V% r; F% M. ] s, l$ h
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
* V. m* u _5 o* ^;;将此次交易的记录加入到customer的trade-record-all中
9 M6 z1 f) ^, H6 F4 M8 Qend
$ K; X; o i) Q7 a9 l2 c8 }3 i
. @7 i- M- I$ n( t3 }) Fto update-local-reputation) x8 B+ D; N6 e" u' f: H
set [trade-record-one-len] of myself length [trade-record-one] of myself8 m6 {. I6 R$ C0 s" |- L
2 A: o" U" J+ {( f6 W1 \! L8 y3 d3 v
4 h9 H% u J; e* J
;;if [trade-record-one-len] of myself > 3
& X9 i" Q3 K) a2 W8 wupdate-neighbor-total ^5 F% E; D( d" B8 c( q
;;更新邻居节点的数目,在此进行2 n p5 B+ P) u+ [" c
let i 3. ?+ p8 g. x* R v
let sum-time 0; `' J+ W$ s/ m* G$ F, w" ]/ g
while[i < [trade-record-one-len] of myself]4 \1 x- f0 ^# J6 z1 o/ c- g. c
[
! r M5 R" m( P4 n* L# Vset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )7 f7 A1 |+ e- a8 Q, |% r+ g3 ~ e
set i
! u% B& J& ^! e+ D R$ Y( i + 1)( ?/ ]1 d7 K1 m% N5 {& E& a+ B
]
( h$ H# @. h( ^' d$ d* Clet j 3
6 K. }+ w3 u2 V6 e3 P7 b( q5 R+ [8 nlet sum-money 07 Z! B B+ {5 O! C
while[j < [trade-record-one-len] of myself]
+ }2 J; |' o7 K% g[
! G* z( ~' O; }! sset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
& h6 Q: _4 y) j0 ~5 q8 l5 Lset j1 {" I$ s1 T6 f
( j + 1)
7 U! m% i& B0 A. ~; X; k]
8 w: z% T$ v' |. R' @5 f+ w: Plet k 3
2 ~+ \: L2 F9 U$ rlet power 0: X2 Z F9 a5 g/ r! \7 l2 f
let local 0
; R. S* g: b0 o. e$ R- Zwhile [k <[trade-record-one-len] of myself]. P2 W) I( R: b5 R8 V
[
1 f' G i( n, r9 R0 V. Vset 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) 8 a! D6 d- {- q$ e
set k (k + 1)
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4 w+ u& W0 M6 N; wset [local-reputation] of myself (local)! c+ z4 g. H4 B1 c& }
end; b+ L. U0 b; R4 f% B M
6 S8 b4 u" W# u1 Tto update-neighbor-total
0 P. b( I1 V3 x
4 J4 ~; ?& U8 O4 }. Bif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# r2 e( d" w, n
: ]1 K6 y. V8 F1 M6 w
- b4 z0 \3 Z5 J# Z0 |+ ~
end
. y, T: N" x( G' z# ]. y# z% J$ D# M( B+ S$ i
to update-credibility-ijl
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;;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。
; Z4 i$ p! F H' P4 m; a; @2 @let l 0; z% o- [" j5 @% |# `
while[ l < people ]
# i+ j/ r# N# }% r0 t;;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) u! O3 v2 r. T
if (trade-record-one-j-l-len > 3)
* X* K4 ]5 g, u- j5 J( o5 c[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* p# ]: j' W' R1 c7 f
let i 3
. p/ ~, l! T f6 J5 c9 |7 Dlet sum-time 0; m( C9 G% w5 K/ i/ m; r1 z
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )8 s1 m( L0 q1 ^( V0 R; ?. I0 L+ Y
set i
7 u7 \* {- I- d* M8 N: J( i + 1)$ s* H! Q. m6 n0 [& U# R3 k1 V% F
]4 m! o8 F8 q( F+ K
let credibility-i-j-l 0
. V) ?9 i' Y6 H& k* n;;i评价(j对jl的评价)
# M6 Q- p: H6 G) C+ Mlet j 3+ c/ P( c" Q! n' t# y4 `
let k 4
' g- T$ j- r7 o( b {while[j < trade-record-one-len]
$ g8 J( R# U ~[
: r" u0 a& X+ W8 p, t3 T' {3 Wwhile [((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 j, O' f3 |5 R. m M
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)1 C0 g: E: s0 T. I7 ?) l7 o0 V7 l
set j
+ s0 a% q( c4 }" u0 J( j + 1)
$ L# l" F1 C3 ?]2 H4 t; }* z. ~+ F% @; s
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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# Q3 l! r. A4 wlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
& e7 O; m! g0 G;;及时更新i对l的评价质量的评价# Y% p( J/ l6 F5 [2 E4 c# e
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 p& S/ Y U0 K
set l (l + 1)
+ O( {7 e0 d3 y( V9 M# X" E0 F0 G$ v! ?]
7 I- H4 b$ y/ d! t! V/ Send
3 l1 w: y" p% ?1 A# ?9 X5 S# s; |; }+ b& u7 {9 F3 f5 h8 T0 A
to update-credibility-list
5 v2 v" w$ {. |1 s. klet i 0
/ U3 l5 i1 F) x7 V) s- pwhile[i < people]) O) f9 E7 E, l! ?/ g- N# t
[
; D1 o& f6 `. v- Z0 clet j 0
. G0 l! S7 s* s+ ~) C8 o2 nlet note 0
; J3 z- }8 P: t5 g+ a) e5 p' plet k 0
U, A+ u8 h/ X3 }6 `9 c7 e;;计作出过评价的邻居节点的数目0 ^3 h& s0 }0 i4 |6 r
while[j < people]/ S1 y5 B% T8 j/ T" O9 a5 ^( D
[
( B% }: k# ~3 W% A2 h7 ^if (item j( [credibility] of turtle (i + 1)) != -1)3 z1 ^7 [3 @, [% w3 [! h/ F" Z6 P
;;判断是否给本turtle的评价质量做出过评价的节点
4 G- R7 c9 F; p[set note (note + item j ([credibility]of turtle (i + 1)))
% E' G. ^, p* w# _/ i;;*(exp (-(people - 2)))/(people - 2))]8 k) {! c n% m! l& Z' _* N
set k (k + 1)4 E6 l3 H$ K+ N
]
; ~9 f* t+ v% N/ \set j (j + 1)
9 p9 ]7 C* s6 H% _5 f% y- []5 _" `: _5 y( `6 T0 u, d4 b7 B
set note (note *(exp (- (1 / k)))/ k): F& N; w: B8 u! i' i2 l% F; S: D
set credibility-list (replace-item i credibility-list note)% {3 P& [8 S- w/ A
set i (i + 1) e4 f7 |8 l* q& S3 I% k
]) Z7 {& a: g4 P3 U
end
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to update-global-reputation-list
- J, |8 ]; t$ A( Z) Ylet j 03 \- t8 A( k2 t0 K! R0 u
while[j < people]
5 G) C& A! _; ~$ T& @5 H4 D[
+ C' u" s: p& C( j9 l1 w3 Jlet new 0+ ?9 e( w3 F9 i
;;暂存新的一个全局声誉: K1 k) ?: h, p) Z% l2 p. P- T4 w) e
let i 06 {- A! w* L% |3 v
let sum-money 0
1 v! i$ H" Z. K/ Alet credibility-money 00 b' y5 {0 w/ P) i- a* R3 U6 O% J
while [i < people]
$ u* u" G* @# T: c[
: M* T0 l6 u4 }set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( h- E6 }' @% v# I' J1 g8 w: k4 v
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
. E: k4 a# W9 s/ [set i (i + 1)$ y5 j4 m$ A# R2 x/ S( E8 d# m
]
6 M! D1 ]- n8 f6 h) l8 Nlet k 0
7 q( B4 f" V- B9 `' e( a# Clet new1 0' B; O2 u% Y' Z0 h9 f4 N j
while [k < people]
: Y+ ^3 @, d$ P8 Q0 W# W[+ u7 T# P5 z0 e% p2 ^$ K
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)
6 S4 W/ V: C; f& @6 H! k$ y2 sset k (k + 1), c& ]" a; e/ |5 L( H
]
4 Q, ?! z( s- ?+ N: c: |0 ?set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 6 n1 j$ f" m7 h5 V2 g
set global-reputation-list (replace-item j global-reputation-list new)
% X8 h2 l! I) J! A; G, A: x7 Gset j (j + 1)
9 X9 x8 B+ q& Q0 F) L# G8 B]' |& ~9 E" W3 `( Q. E, ?# u
end
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% ^7 V5 ~ i1 b L. I8 S V7 D! K$ @" s1 O* N# l& o6 z2 F
) p( O) }* U ^
to get-color8 b7 t- c; G6 j" S5 ~, K: U
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set color blue
- O( j; ~0 n, D1 gend
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; b+ I0 A2 E; ?9 K7 Q' |# Rto poll-class
# L; G2 ^/ F. W [) U* Z1 Uend1 {# [4 R' M+ l. n, |$ m7 W. ]& f
& B% O, Z/ \2 t+ Q& m8 R0 @
to setup-plot1
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0 `3 U7 l3 Y0 Q4 L/ `( Vset-current-plot "Trends-of-Local-reputation"9 Y n3 z. ]) o
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set-plot-x-range 0 xmax6 T$ e7 `3 x+ {& c0 Q" ]( ^+ B
# D5 c7 N. d' \" p- B5 l
set-plot-y-range 0.0 ymax2 ]% e; e7 [3 k$ A# ?
end: S6 R/ m& G) ~( x! G6 s' S) F( A! p9 p
! A7 K4 s$ U& ~
to setup-plot2
. g' r/ i+ U1 S' s
) t P. N7 \$ a2 Fset-current-plot "Trends-of-global-reputation"# D2 ?9 F, v. b1 |4 P# I/ N" `, f# l
}' }) }$ _& {: g9 O* d8 lset-plot-x-range 0 xmax
, |8 V3 h/ e# A' ~4 D- Q3 g
6 Y& V( _: ?" `9 B- H0 R/ ~set-plot-y-range 0.0 ymax
8 b' q( {& ]6 k4 N- Wend
: ~- h3 u' C( R1 i1 K+ x; J h
6 J4 H6 B9 J! b1 z) t2 Y+ n+ @to setup-plot3
* O( `0 W1 g9 _' Y5 a0 V1 y8 T$ \6 R$ u. v% |
set-current-plot "Trends-of-credibility"
# d9 X/ g3 R& ?' F1 `9 o9 a3 H, N; t5 x& _! ]
set-plot-x-range 0 xmax
) h$ @; l3 d/ ^2 t2 ?, q6 P3 Q
s% J- x. r, r! m8 V3 xset-plot-y-range 0.0 ymax
& r) g$ J7 g0 O4 hend7 _2 i+ |( A/ `. u1 W8 h; q' v5 E
+ ?) O) j: F A; X" X, zto do-plots+ P p a% K% Q
set-current-plot "Trends-of-Local-reputation"
# V. }5 v* E1 l& A0 u! b, h3 hset-current-plot-pen "Honest service"
( P4 I# ]) L# o3 Cend. }1 u2 K6 n: K% I9 g
, T8 K U* _; J; [4 [
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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