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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
+ Z+ @, ~3 ]1 O- R% ]% I9 R: ?6 f: rglobals[7 \! z0 h7 F) ^
xmax
1 }2 ?7 [# M6 f9 aymax
& P) V; F) {: R5 D [global-reputation-list7 ^/ s; b' z4 J3 q+ t5 ]
' K$ {* S R. ~" p
;;每一个turtle的全局声誉都存在此LIST中' U; C8 C" ]. I* G5 f6 ^
credibility-list6 I0 F2 T6 f3 g) j$ t: p, Z
;;每一个turtle的评价可信度) o2 D1 r0 n0 }2 z. v2 B
honest-service
& Y8 M6 r, S) t+ ?. D* punhonest-service* y1 F* M6 t/ k# c I2 h
oscillation: l- `6 F! G; E$ B% g& O
rand-dynamic
- ?" S5 C7 u# K/ Z]
+ b5 a8 l# @" r+ k$ @; c# ]$ k
# h' ?' ]& J4 W; r$ Yturtles-own[; c5 W& c6 F" A; Q
trade-record-all
- h- V' b- j7 L1 D;;a list of lists,由trade-record-one组成, V4 r3 v @$ P* [7 R
trade-record-one
2 V+ F0 {+ z ]7 v' B;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
- E- J7 J x" P! m* F; P5 C* B( h! g1 |4 s$ u2 T& E
;;[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]]
0 K8 i: U9 C% N1 ptrade-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" ~* T; r5 t% X% T3 Acredibility-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
/ ~% \8 v/ D2 o/ e" K( @neighbor-total
* ^8 h8 Y }) Z! X, U2 z C;;记录该turtle的邻居节点的数目
' }7 b! o5 E' I9 S( N3 {% D) ~trade-time- V# a! I1 I$ W1 h5 [" _/ Y
;;当前发生交易的turtle的交易时间# U+ b8 ^% a/ s" B
appraise-give
/ J- [1 E* d6 f8 |;;当前发生交易时给出的评价8 n( U7 N" m3 @+ z
appraise-receive
w% _" b0 Z( W8 B;;当前发生交易时收到的评价$ N/ R- Z1 a* F
appraise-time
, z1 k3 e8 h9 F+ p* O;;当前发生交易时的评价时间' P+ y+ d/ S$ z/ s* r* n6 e% [# f
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ t$ _. X) x! l& u3 Z1 G* Ltrade-times-total
7 `+ P- ~# f( M5 M3 Z;;与当前turtle的交易总次数3 b4 d! f8 U+ U9 c
trade-money-total
" a, _( x! P. x' }/ @, _& b J7 k. X;;与当前turtle的交易总金额
# i; j* n- s1 elocal-reputation, J" c# u$ h2 V/ D, w) d
global-reputation( @1 D! c! A% L6 e d, ?0 ]
credibility
. R Z8 o5 M. H! i;;评价可信度,每次交易后都需要更新3 f- o$ o1 g) ^& M
credibility-all4 ]* ?, I9 {; g
;;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
* x' V8 S. H7 R Z
% F5 K$ \" i5 ^# c D;;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! @& I$ r/ b$ C/ E
credibility-one
/ r) R3 @ R) s" r- F2 ~;;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
' E* d' ~% a- p" O ]2 c( d8 z7 Cglobal-proportion
% q5 U$ ~9 H1 p' W) j+ t) j; ]customer
1 p. z3 j8 u7 r; B0 Mcustomer-no; r2 B+ U. @- m+ S3 J$ V( R+ K6 c
trust-ok
- U/ p3 z9 R) [1 H2 o0 |, Btrade-record-one-len;;trade-record-one的长度; b6 i' j' d) B8 ^5 T% J# s& i
]( Y1 l( i/ a* ~9 Q+ `- Q6 N
- S/ s1 E" w5 n' E, ~7 k# p;;setup procedure) [0 |- Y& U( [8 T+ ~
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to setup
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! \% u, W- M4 S; {* xca
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% L: s( P( T& J B" f+ v$ Q0 xinitialize-settings. u# J4 v- N& e/ J5 h+ @: [8 }7 R! r$ f
% s- n& S; {3 V% O
crt people [setup-turtles]# H- {+ c1 a3 |' O$ |, N# a8 s3 `
# z$ z, N; k, {$ a/ D& M
reset-timer3 n. l: p. d5 A$ q
# `+ A" N8 ?/ f7 A% s F% Vpoll-class
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setup-plots- c, x) c: B( A
$ [5 K! |! e0 X9 |5 Z# a6 udo-plots
* y% g' [( _5 {, pend
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to initialize-settings
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set global-reputation-list []
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8 S) E5 P2 q/ v: Y: t" a4 W* R/ [9 tset credibility-list n-values people [0.5]# n8 T+ \% q% `& k3 J
5 c2 K/ ^$ ]$ uset honest-service 0) v4 z! R2 I. J( X6 p4 E0 _! L
5 F e1 U) M" ?- q# e) ~
set unhonest-service 0; ]+ x1 ]5 n( @0 L* k
1 O9 n5 }; O: u/ s2 v- ?5 bset oscillation 0" R) _/ M0 C) |8 s
2 Y( e' G) e5 i, D
set rand-dynamic 01 [1 b2 l+ `$ K' l/ d* I: ]9 j' g
end5 _1 c" E4 h" w. v g, I! x2 M, a
5 {- y( z' m+ ]$ Z9 j S
to setup-turtles # |, N, \, t1 W
set shape "person"
& ^ o+ g: Q3 Msetxy random-xcor random-ycor8 u7 I- W: ` w& ~' F3 ^
set trade-record-one []
5 a/ r$ g; F; r3 {
$ Z/ L" d$ u4 H* X$ W1 i% s4 Kset trade-record-all n-values people [(list (? + 1) 0 0)]
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9 ^0 A; M2 L+ tset trade-record-current []
/ O0 e$ r8 k) ~( q) m9 j; Jset credibility-receive []) w/ }/ c9 m2 ]4 x0 J: o1 g
set local-reputation 0.5
: ^$ p6 T5 M" lset neighbor-total 0
# E% _3 U! m% \% {1 T, v5 K6 @& ]; qset trade-times-total 0' I5 j! r6 [7 l1 d5 t/ [
set trade-money-total 0 L6 D! X0 C) Q! b4 J
set customer nobody
$ o0 g D) J5 F" @! [. x0 x: Xset credibility-all n-values people [creat-credibility]: x( `( Y( A2 ~# r" u! C+ t9 I0 p" i
set credibility n-values people [-1]" i6 s: l: P7 i0 z& j% O
get-color& J: f! |7 D8 y! F/ g; s8 B
& x3 a, }# k1 ]2 N" T# c$ ?3 J! s. Gend
) s3 I) ?) G% }- U& w# T& F. e5 u! m) ~! N$ f* v
to-report creat-credibility- B2 B9 @( c- t' h" w4 m
report n-values people [0.5]* p n% R) U D$ h$ |, t$ K
end
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to setup-plots
. T7 ?8 B5 I* Z4 N, q- S9 q1 {
: u, d3 l, \3 t9 R* Fset xmax 30+ _$ W* q7 U1 D; t- D
! l2 l0 L1 o# `8 s9 V% A qset ymax 1.0
$ K$ T0 r5 c) L& v$ E3 Q
" N8 `0 ]# n* h: \" P% n& Yclear-all-plots
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setup-plot1/ V7 x0 A/ L; E# r; e/ A
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setup-plot25 O& W8 n6 U9 S0 B' j# h8 ?% W
. g" P" Y0 Y9 `. k4 ]9 Csetup-plot3
/ X& Y0 B: N7 {& [# O5 kend
" P6 k. t `. @8 x5 n1 u* ?9 K- i$ Q$ B; U: g9 |
;;run time procedures
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6 J, ` e2 g! \6 y; Pto go* k8 C* ~2 Z4 k7 z) {+ s# u" [
! T7 w; t, s' D8 O2 [3 @7 v% A
ask turtles [do-business]1 E# q" p/ T3 j% b
end
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4 S; N! x# e: V; [8 H* ^9 \* qto do-business % i9 F' }4 z9 G
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( U: G) V& s5 q# `' Z" s! [ ~
rt random 360
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fd 1/ A. c* A0 T* ~6 M
* j! m$ L* b# Z6 N8 j" Aifelse(other turtles-here != nobody)[- J1 _& m3 k. N4 l# w, P" G+ p0 U
6 i+ V3 w! M" i1 X) A5 u
set customer one-of other turtles-here2 r0 t8 F5 u) n: V
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;; set [customer] of customer myself" P4 x2 o$ Q& t7 g# S# |
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set [trade-record-one] of self item (([who] of customer) - 1)# O5 z! {2 t' ^; t( x/ m
[trade-record-all]of self
& O8 w4 z6 |( X8 v6 p, Z;;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). s" |1 c" b6 y5 |
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
% L* A3 {; [- L0 V;;先求i对j的信任度; I6 |& q* W5 f5 r8 I `9 n P
- _. L: i; W, K/ v7 x) L4 c3 iif ([trust-ok] of self)- Y! ]1 d* p" h' ]0 u$ ~, v7 x! X
;;根据i对j的信任度来决定是否与j进行交易[# Y/ W5 D- I: x& ?
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself5 y# S% h8 p$ A0 g# _
% m) y3 O' ^( ] L% j/ X+ ?[ S0 H3 A' i1 p8 D' N s
- k$ `; X7 m% S" o' w, u9 |do-trade
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; l# g3 o) t9 A7 v* wupdate-credibility-ijl; h H8 w( v# ^) g
% m8 [7 |! r5 b2 F& d# X/ gupdate-credibility-list4 ~1 q) u( A( P) a. i0 z
4 _0 o% V& N# E
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update-global-reputation-list( s8 V$ K# \8 V1 C
- M, {% M& P" U5 w1 o. i
poll-class
/ q4 f- K, G, U( S+ u8 r5 m* O$ x8 R, X; ]4 L* D* x' }3 c
get-color
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]]% [- t8 {$ l' d. F5 L
9 A2 }7 J2 q z% D |; b- e
;;如果所得的信任度满足条件,则进行交易
' ?9 w, Y% w& r2 E1 V9 q4 f& v& ~# `) `5 R" ~: w. \& j5 c
[
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7 D: M( G+ f7 P3 i) v! ?' M" Lrt random 360
- \; H( R, t/ {# z1 b8 g* Q& c% |8 I( Q7 f+ w y/ G5 q0 K/ p( X
fd 1. b6 {( e& f( j8 D# a, l
/ }, O9 l" R& J7 p$ J; o]
# U* n6 \: y2 ^" `' s
$ @" _6 Y% a: d1 f3 Gend/ @9 {/ J0 ^1 m: g
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to do-trust ! }4 p! [7 J% q$ r& L
set trust-ok False; `* B; Z6 A0 L+ l
! U7 m" _+ _ u5 K$ j3 [( ?" a- t3 J* V! c/ P, T" [
let max-trade-times 0
& d/ v# w2 i: Kforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
y$ P8 K7 R- A$ _; Olet max-trade-money 0
/ h+ j) y( V0 H7 Zforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' S0 H5 c4 n: ], q/ G$ Y
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))7 O8 k( r& M! C7 I
0 ^. C" m" ^( t$ R+ Z
6 E& ?; S' a9 }& s3 k/ r1 a% C
get-global-proportion& ]. E! g& V1 d5 `
let trust-value# C/ R( D! S* r& A0 \! u% 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)! ]' o4 t6 _: ~3 X$ K2 M: i$ z
if(trust-value > trade-trust-value)* ^' T. ^, G+ r7 ]* p
[set trust-ok true]: J8 A+ t: [: @% J. b# e
end
: s. }3 X1 M% Z% p' U: X
. v* O* `4 {: Gto get-global-proportion
* t2 T. w- U1 e: P' `* jifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
& z! w$ f0 L' A7 N9 ^3 U5 S, ]" Z2 m[set global-proportion 0]
7 n; ]! b# l$ y1 W* Y' e[let i 0
& @% C! M6 J) K" e) Z4 [( Ilet sum-money 0
% w3 F, M/ y3 |$ \- Zwhile[ i < people]
- U Y8 O4 z' u2 m" y[7 @1 D( c& |! d
if( length (item i
" I. z/ o0 r* H# r2 l% U Q[trade-record-all] of customer) > 3 )% p5 z7 f0 ]$ B. R
[
6 x/ G1 o1 {# Pset sum-money (sum-money + item 2(item i [trade-record-all] of myself))! i7 J8 R# H" o9 _1 K0 n
]* C: x- N% x5 @1 s# h9 O9 @
]
/ Z" j3 I+ B, Y( Q# |let j 0; R- S( L% |/ |7 W: @* i
let note 09 K' h/ s5 Y3 Q: n! l: q
while[ j < people]4 Y/ T, }2 I- h0 N# k
[
- O5 ~5 S/ G b0 Y( Kif( length (item i' K( P! ]& N/ M+ Q2 T
[trade-record-all] of customer) > 3 )
) r8 [0 i3 d% V* \/ }( k' h- g[
+ U$ A$ Z; f5 y! B* {$ Kifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
9 u0 I1 E* [! @( M8 `2 K[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
1 L! G. t8 Z* x% T' p& R$ T[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
1 t, O* z7 p( \3 {$ f]
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set global-proportion note* N* y+ d* o, C. \, m
]3 H, ~1 v( b) F# `/ x3 p0 p p" ~
end
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to do-trade
! l9 _& v2 t/ p' g) V4 _' _8 c2 |" H;;这个过程实际上是给双方作出评价的过程
' \2 F2 V9 ]( Hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
$ `4 B' v6 d6 i A: R7 ]4 C# L; bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# E0 u2 p3 j* Q3 Q& o" T9 B
set trade-record-current lput(timer) trade-record-current2 w! k+ z1 Q7 p
;;评价时间
) [2 w8 ~$ d$ O) q8 z+ r+ o5 D8 [ask myself [5 V3 w; Y) R9 H' d
update-local-reputation
! Y0 g0 |% z( cset trade-record-current lput([local-reputation] of myself) trade-record-current( E; v8 o4 A) B7 G( ~& I. B [
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
( l* X+ i! S5 |7 o;;将此次交易的记录加入到trade-record-one中8 {/ g, }! V& A7 ~6 W' a8 T3 o1 M
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)% T7 @; ^/ {8 u9 N9 J! V
let note (item 2 trade-record-current )7 E6 J8 R8 m' j* O+ u, o
set trade-record-current
) F* Y7 u. t1 g1 |- h3 h( ^(replace-item 2 trade-record-current (item 3 trade-record-current))7 Y: t4 `2 l0 D2 Y! \
set trade-record-current
& C" l5 G4 }# G) G(replace-item 3 trade-record-current note)
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& K: @2 w& {* z
ask customer [
5 m- d$ V% g9 L* K, Eupdate-local-reputation
) \# V/ @/ a2 m8 G8 f; Nset trade-record-current
5 [- E/ K5 t5 }; c; F(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 8 ^) C8 V) L% |. L& R: C
]
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& b; l% Z" ?8 q; |1 h, c# |, X7 Z- h+ w& {' U* ~' ]/ _* E
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer. o7 M" x; Q5 n0 e* U0 {& M
# A Y: j2 p) G8 A
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
1 h! e/ W0 w. p V' A' Z;;将此次交易的记录加入到customer的trade-record-all中
) t* { u+ K8 V5 cend/ _, _) y, r$ B ^" D/ f0 Z4 Z
" @6 [8 }- }% _# j. Z3 {/ N ~
to update-local-reputation
/ V; m; I% ~+ W7 W0 l% ~set [trade-record-one-len] of myself length [trade-record-one] of myself i2 v5 k* p6 \0 @, S
0 u) Q! j5 C2 h+ S) t
( d8 q2 T0 C. s3 a2 x' c% _4 S;;if [trade-record-one-len] of myself > 3
& _" S7 ~8 i9 z; C4 w3 Iupdate-neighbor-total
h: F* G2 e+ }" v5 s" a;;更新邻居节点的数目,在此进行
2 h0 n! C3 g/ z9 _" f' R1 \& X4 elet i 35 v _1 E1 j! z* N) c6 ^
let sum-time 0
1 Z5 ?8 t! K3 k9 G; j8 t& }( \while[i < [trade-record-one-len] of myself]' |8 c6 x7 X8 d: J5 A/ d( n
[
- T% F& b( d7 Y0 Q$ B3 Jset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
& [ w3 n' z' R ^set i( r) E# s' B/ q
( i + 1)0 j- I8 v. {0 j( ^; M+ A
]
$ @, b+ [4 ?: [0 H Xlet j 3
0 M5 D/ S" d4 H0 h& vlet sum-money 0
6 d, }% c4 r: Q7 g% t2 v5 twhile[j < [trade-record-one-len] of myself]8 N' U+ X1 C) B7 e5 n" c9 g9 T
[- q: u" f! c2 T, E; 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)
7 J0 A6 ]) }8 G9 g+ `set j& P `0 L" ~- K3 N# a9 m& \0 @0 M
( j + 1)3 K, p3 O8 @% v" S9 O5 v4 b
]
* Z: @* \7 J7 |let k 3
4 K) F' ?7 t+ Qlet power 09 a# \: q4 W' P% y" t
let local 0- x" K/ j, n+ a# F- O$ U* T
while [k <[trade-record-one-len] of myself]
3 n7 k) C% t6 B$ d& @% f$ I[5 Z b- Z# Z0 E
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 [* q, ]$ t, [# T
set k (k + 1)6 u- H4 S; S( w' b/ y, c" k% t; _
]& D: w! m E! f
set [local-reputation] of myself (local)
J, [; m* V4 L/ s5 H0 K# x; z) ]end% S) {. G( z7 K! L- S& s
$ c7 C+ C* A; [6 w1 a1 h. C7 a- @to update-neighbor-total
: t' X3 J& Y! S/ c, M/ t) E3 F/ L- D) ]" ?6 o
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ], [! W$ _" |0 X. W& u3 J Y
2 N/ k5 W$ s' ]: S3 n2 h! F5 i
$ R, X; q, s( @: Xend
) {# a2 U0 M* G: J! U
9 n: m: M! s6 g0 O0 _; u0 R# s8 Cto update-credibility-ijl & a/ k2 M, I+ L4 b2 v
0 A* o$ d' E1 i. K, u1 L
;;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。. s J: R, k7 r
let l 0- h8 m+ W: a% U2 x2 I
while[ l < people ]' `$ f) C) [% ?2 V/ p( h
;;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( T9 B0 c; G) Z {, C, T. M9 U% v6 Y
[- O7 y) J- s: z' l; ~& @3 g
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
- Q; w# Z* U5 i" D Yif (trade-record-one-j-l-len > 3). u* c/ ~ Y3 S3 b
[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
: \/ {/ C, m8 |) D& j0 E- Blet i 3
# | U4 J/ B1 _& A6 T& h4 ylet sum-time 0% ^8 u B1 ^# a- n1 e
while[i < trade-record-one-len]: S& i* i0 b2 g/ x2 A( y* c2 \
[
- l ]. E6 Z1 A$ m3 `6 f2 Yset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
& v2 g/ ~6 n+ x& `" W( z$ V! E) Gset i# M# j% |1 I6 v2 H% M8 S
( i + 1)! D: w8 z; F) o) D/ p
]
4 r7 a7 \3 m A [* tlet credibility-i-j-l 0' E; V$ k) w. }) @) E; Y
;;i评价(j对jl的评价)
& I6 S. s* r% s) xlet j 34 T; Z& e& |$ P4 [# \1 P4 n' X `
let k 4
) z7 y N# l5 L: kwhile[j < trade-record-one-len]6 e* M! K; W$ ^+ d
[7 j# ^( B9 Q2 v
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# j) }' j1 t' ~3 O! S! X. P. k2 x
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)
+ E# ^2 N i9 t3 jset j' U; k% N% K8 I+ X1 ~, z7 f0 K
( j + 1): G7 V h3 T5 ?1 U" P
]% N2 P0 _1 b3 V8 O, L7 o( ?
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 ))
. C- K# K" [9 @4 A8 d! j" {2 ^ b. j b1 k$ `- a
$ s5 o1 u! z+ t* F( Xlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))# Y7 j6 }9 p# j
;;及时更新i对l的评价质量的评价/ P, J: o8 ]. k
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 ~/ E: f, q) }5 E+ h
set l (l + 1)
9 k, F* d# p: L]
8 F6 e4 ~# N0 a: ^end1 r8 h+ ] N3 }: K$ V1 W, R( p- M
E+ K$ N) K; J; M
to update-credibility-list6 L. w3 Z, m0 C; o. q' i
let i 0
/ b5 Z: I, n# y1 ^! V: Rwhile[i < people]
1 N1 V5 A9 X" f3 I' k& `. ?[
# g. x, ~; {6 p5 xlet j 0
/ y: V0 ^, x2 `% {0 i6 nlet note 0
; B- n, C+ k% ]! s7 ?let k 0
- V7 d4 e" d/ @1 d9 S;;计作出过评价的邻居节点的数目& j+ }1 Q& u) } L. L. Z4 ]* d
while[j < people]
* T6 V$ {8 O5 C$ f5 ?[& j! c0 y+ I; U* Q8 a
if (item j( [credibility] of turtle (i + 1)) != -1)
$ o, U1 {# w, `# _;;判断是否给本turtle的评价质量做出过评价的节点
4 ?0 T& V/ h8 _( ]: K[set note (note + item j ([credibility]of turtle (i + 1)))
7 l8 U; _1 g& i. Y- g+ t3 G;;*(exp (-(people - 2)))/(people - 2))]0 w: r9 Q8 g% U
set k (k + 1)/ z$ a$ ` O' l$ M
]5 a$ O+ t+ N8 \7 r- z
set j (j + 1) o7 F' R# c4 i/ o" U3 @; t
]
1 t) p* }, _- \! U8 g% |set note (note *(exp (- (1 / k)))/ k)8 {# Y3 q+ I8 x4 R' \* q, Z2 g; |
set credibility-list (replace-item i credibility-list note)1 J6 l# `2 v) q* J+ w: T9 S
set i (i + 1)' E( w8 {+ K0 l0 y0 O E0 m
]8 D' T6 f; M7 ]5 l( ?7 \
end
1 u/ g, Q0 Q+ X( P8 n E8 {" o( [( @2 n/ b$ n
to update-global-reputation-list: Z- u) b* X; G' D/ t W9 A9 ~
let j 0
/ y( C( k H) b) d; Owhile[j < people]
3 m: ?0 c) W; O( Q7 J[
* I, ]0 Y6 C7 o. P: p( p" P% |let new 0
# e5 p! B7 m- }% S7 a;;暂存新的一个全局声誉( ]" ?' r4 q; c
let i 08 s( J! ~, l7 H' g1 Y: Z
let sum-money 04 j$ I, }. |0 \5 [
let credibility-money 0
7 s4 F$ U& R2 a! o# `" Dwhile [i < people]
4 X7 o8 W* z9 |" Z/ ^$ G; {( u5 B[
; M& p& H5 J( J9 O& o. q* vset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))9 s% ]) A( _* [6 ~
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
$ c, ^$ }' n- R. aset i (i + 1). m" M) I! ~$ z" o
], X1 |, e4 l5 L; ~
let k 0
8 M0 U2 Q5 g( j! S3 u& ^# z( ~# plet new1 09 M- n6 g0 c$ h2 @; \! T
while [k < people]
+ U0 @0 d3 U3 j: ^5 _* z[
/ t7 u `- u7 `* R9 I% j6 \7 |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)" y" u3 v" C0 L% Q3 `' h, a7 W
set k (k + 1)& S% K; g$ x/ _" P2 }
]' U( @/ b: v) b# A; V
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ( K" A- x+ E* b8 w- \
set global-reputation-list (replace-item j global-reputation-list new)
( X; S- ?' N9 x, i. l3 z0 J& ?/ nset j (j + 1)
; l* t' C; g: \, W( p7 P]8 m3 G6 [3 q) g' Q h
end) H0 F9 @ t, O4 v7 B$ G8 P) E- o2 T
5 X9 }2 T3 T1 b) q; f- E
* i7 f- R; k0 o4 q
# n: ?2 Y, ?7 C. j0 p8 B$ Nto get-color) I$ {7 G( j1 _$ d
' W7 V, Q; `6 f/ K6 n) ]
set color blue ?/ [$ E! }; P
end+ D' p. D7 i2 C1 q5 N! z
# @/ {: K, @5 I3 H rto poll-class
' u8 ?( Z4 {/ ^' bend7 n6 G' N* Q* ` d0 n7 _
8 C. w9 S2 z, P$ j$ pto setup-plot1* k) j* u/ c y) q$ T# \# E! L9 O$ c
4 D" P. ~9 r4 b6 K: L* |9 L- p8 e
set-current-plot "Trends-of-Local-reputation"
+ _% @. v4 y+ [9 y/ h
4 Z1 b% e/ I/ n) Bset-plot-x-range 0 xmax
) F4 K4 C' q- K7 M) x+ x2 `7 f5 b1 ]+ R6 H$ m
set-plot-y-range 0.0 ymax% \& |; U9 T5 }! S4 z6 n
end' S8 B4 o9 \; W, O5 r) H6 S
1 G9 R( p) ?3 j9 J/ s. \" Ato setup-plot2
* R( s! }9 o3 `* c, A, m4 g$ ^; w' Y% `5 _2 R
set-current-plot "Trends-of-global-reputation"
, c3 C* L' v7 }( e! ^- g& A( I" I2 S( [' P' ]$ J2 A$ }
set-plot-x-range 0 xmax
?4 C, z6 P8 _& p3 s. Q: U K. m5 W# d0 Y
set-plot-y-range 0.0 ymax
$ K; j7 N4 u/ {% Z# S5 x- {end' T$ Y) ~8 e) l) u
$ D. X3 q+ n5 q- x5 K, s
to setup-plot3
3 e- s4 D* k9 l) c- ]6 J
4 h: Y- m2 ~1 q0 K/ [set-current-plot "Trends-of-credibility" r: l7 N! q/ i
9 ]0 `; y* g- C, b1 [& A k9 L
set-plot-x-range 0 xmax
+ _- x/ M, {$ w% j" R
* U/ d5 a; s$ W+ J oset-plot-y-range 0.0 ymax9 q) R7 {( i3 v( q* i9 Y
end$ }+ {) p! M: N" x' V
$ P V: w2 N; ~6 k. l+ C8 o
to do-plots" n; V3 S4 V7 \4 I2 O
set-current-plot "Trends-of-Local-reputation"
+ F% g: ]6 K" S$ \/ W0 n6 b/ Bset-current-plot-pen "Honest service"9 ~5 x3 k7 T! \& g2 s
end- {4 N& b. D5 z2 \1 |' h$ s/ g; {
0 i* W7 ]6 V# E4 N0 r
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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