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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
: k# ~ a8 T8 `4 n6 m+ S% Y# O3 lglobals[
0 c$ m" ^: @3 B; qxmax
7 K+ T) d$ Z! k+ ]0 z4 T2 aymax
$ a8 b& r* j# h) Z/ r. ~6 A0 U+ p, uglobal-reputation-list: a7 Y' }/ E8 ]. W7 Y7 ?4 A
1 p+ F" x' v' ^
;;每一个turtle的全局声誉都存在此LIST中
( d p3 I$ ?4 W$ t- U a& ]credibility-list* j* [! l0 u0 U% j8 j
;;每一个turtle的评价可信度2 ?9 Y" W4 g4 N& m
honest-service$ t( E# A1 H- z* F5 a
unhonest-service
7 O- E5 g7 i6 ^, b& @: `oscillation; q) x" \5 G1 v* m" |! r
rand-dynamic1 l* r; X0 }, N5 K: ^' z T q" k
]% e" m3 ]8 {2 u ?2 M0 c
, r& H3 v1 m6 y' H+ Z" K1 gturtles-own[0 s# Z/ k$ P" E l
trade-record-all p& l+ c) E% l4 F5 s
;;a list of lists,由trade-record-one组成& R8 Z1 } V" z3 S
trade-record-one6 u5 j$ @; L& ^' Y g: o0 |' ]
;;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 i p- l3 ~! V+ B# T$ O
( `; s+ s! @+ _+ Q/ x
;;[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]]9 Y5 `/ k+ U5 B
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]$ {# |0 f; u* F/ E! r! C, O
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
3 W! b6 ^3 N" b# Sneighbor-total" x; V5 U: S* {8 e: @, f
;;记录该turtle的邻居节点的数目3 V9 C2 P5 R7 `! u
trade-time v+ N3 M6 E7 ^5 ^2 S; w# R
;;当前发生交易的turtle的交易时间
2 G2 p- l! m n/ t3 T1 _8 s2 K8 ~appraise-give9 @1 ~5 ?4 k! ]6 i% F- j; q! J
;;当前发生交易时给出的评价+ K) Q* g+ w7 A' f1 Z G; D
appraise-receive8 ]" @7 M3 K; R0 O) G
;;当前发生交易时收到的评价: b3 U6 S3 R y1 G$ E6 [' R, g
appraise-time8 w1 C3 u* e: [& Z6 T
;;当前发生交易时的评价时间% z. B# ^: ~8 K k! K6 \
local-reputation-now;;此次交易后相对于对方turtle的局部声誉; f( w$ l8 d( |7 B' x6 w1 S
trade-times-total
* |/ z- ?* j" J6 P P$ P;;与当前turtle的交易总次数" `6 R/ K. Y ^4 H1 t( f/ [$ [8 G
trade-money-total- } a h7 Q+ [2 v s; ]
;;与当前turtle的交易总金额5 [8 C8 s) Q5 b, } W" v
local-reputation3 L+ z1 N. u D) X$ i
global-reputation
8 W- h+ c: ]: p$ p- j0 E' @) L! c- @credibility$ l, x+ t" h! i+ j
;;评价可信度,每次交易后都需要更新4 t. R# s9 Z* Y. D+ }+ f" s/ x( ?
credibility-all
6 c/ D* s8 e- |, P" N# t! S;;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" \) b. w) R; |$ E Z) `
4 s$ R5 K$ W' @
;;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
, h8 A" F1 B' m9 [ Q( E0 |: ]credibility-one8 B+ `& P+ l h! m
;;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
5 O8 e7 R$ k& ^* G/ fglobal-proportion
m) i# y: r1 Y6 Z8 o- N Ccustomer+ [& V0 C3 \/ ~" W, U9 P
customer-no
* t' \; w1 b+ `trust-ok
5 l/ v9 K/ ?. Y3 X+ J9 H! strade-record-one-len;;trade-record-one的长度
$ G+ T( D( z1 v, u]
% v4 ]) w! h1 g7 ?- c. Y- E# q: ]8 J4 d- C1 g1 l( E
;;setup procedure
0 H4 i' V) o* a) C/ y
7 t; W- Z3 Z2 `% ~8 U8 H4 X- `to setup W0 Z- f4 ]& G4 f. s- C9 f- Q
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ca
4 a) r: |/ G+ l0 M7 {2 ?6 U) B: |: r7 h3 b3 u" P
initialize-settings
3 e! |/ z% L* `. K! N. u/ T& K6 _, I& s6 Z
crt people [setup-turtles]
9 U# m2 b) M% ?0 D
1 I N, a, `6 C# L( mreset-timer
7 F a/ i( C& M1 H) m. o' J' D- M. O. M' s* m8 e C3 q
poll-class8 h& C" n, ?' }, z5 D
H3 \% I% i% `, a5 `
setup-plots( f2 A- I3 Q+ g$ h" k
! a8 s) k. E: G4 D0 d7 l" Xdo-plots
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/ w% w# u- b0 E3 f- Y( B, D/ }to initialize-settings
& Q$ O0 `' o# N1 e! j8 t: O1 x0 z+ T+ y% E( A5 L0 R8 h% ~! S$ T
set global-reputation-list []
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set credibility-list n-values people [0.5]
9 ^4 t3 D" B7 D' C2 X
) r. n2 d. s6 k& q2 n" h$ dset honest-service 01 B5 H* c& A i% ?
. i1 V2 O* k8 X3 E7 U6 dset unhonest-service 0
$ j3 ?& M9 u' j% U
1 O4 W( B) J% f: q/ m0 K; bset oscillation 00 _8 J% [6 I- ]$ I, y) v" ~3 ~) T
: \+ |1 C; Y2 c! `' w/ Tset rand-dynamic 07 ]0 G6 L) S. X3 A0 I7 v
end
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to setup-turtles ! Q" s- S, y: y. h/ u
set shape "person": Q, ~& V3 G6 K1 c+ O
setxy random-xcor random-ycor6 P# A. Y& K7 L) d' f6 m7 `
set trade-record-one []+ e4 e! \1 U$ @9 H* S4 Y' ?" Z# t
3 M/ {- Y. t0 U- u, Z' x# P; R5 }set trade-record-all n-values people [(list (? + 1) 0 0)] 3 e3 F8 t( P) N- X# @0 K
0 b1 B0 _; D/ w& h! c! v* Jset trade-record-current []
; `: l& q0 @; r" l6 ^) q: [, pset credibility-receive []$ f8 _5 x4 R( E+ S
set local-reputation 0.5/ s: S+ [9 F5 h) V5 d* y
set neighbor-total 0
2 O! h* [" x, w2 L+ I# @: v7 pset trade-times-total 0
+ u; T6 Q. l+ c: M* a3 k+ O5 Zset trade-money-total 0! C K3 ?7 `* a
set customer nobody6 ^" c+ M8 K1 `0 q- l
set credibility-all n-values people [creat-credibility]
$ e. E; A7 S5 s% Iset credibility n-values people [-1]
6 |" z7 w) J) h: h. ~0 Kget-color5 \" z, q+ y- g3 d5 X# Z+ g V
( I1 O7 i4 ]" x! R: p, Z7 u7 _& Bend2 I+ Y) J/ f: q4 ]5 \
2 n. L: L4 r5 j8 Wto-report creat-credibility/ o1 q5 I2 k6 f# L4 j" J( O
report n-values people [0.5]
! M, ^& `8 T1 V' l+ c5 F+ t9 v( Q9 _end+ W2 B' |' p u$ d7 M1 ^7 z8 |
0 i: C1 d9 p6 Z7 @to setup-plots [: ], G, [/ O! _4 O! N; Y4 L
* E0 b/ |) r3 Q% nset xmax 30- w. ~( T, l8 O. P
5 u& }7 e* e% Z5 B& t2 [$ W
set ymax 1.0
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clear-all-plots
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setup-plot1+ Y+ J1 C9 s0 {. _! G# Z' w
U" v5 H6 x: osetup-plot2
, ?$ d8 H9 `8 }3 P0 Q( y* C q4 B6 ]
, e0 m. j' D6 N! R7 Gsetup-plot3
! a1 p: i$ a9 L Y( ~: ]. g5 Wend) n- ` ] b/ [$ f; n' g
& m7 D4 Z% I; Q* \. r$ Q. m;;run time procedures+ Y+ Y' j2 p8 @* [: }- [
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to go* j+ F* K [, f5 K
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ask turtles [do-business]
- _/ W1 o) g, P/ Qend" p& j: `% i4 h2 J, i9 h; ]' Z
- d- ^' X7 o! A! N/ K
to do-business
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; v4 p+ I4 V6 ^6 |0 K! n B+ G9 N2 g' f! E& x% y7 m
rt random 360* [1 l2 S3 ?+ {% b
3 _: ^ Z$ H6 I( e9 N! y, _& qfd 1( d! X# q* ?! s% p
; Z! ]# J# O! `% i, a }& @
ifelse(other turtles-here != nobody)[! {" M4 }7 k( D
& x! E. J# q! R R0 ?set customer one-of other turtles-here
& U1 X6 u. w0 f' g/ C/ [1 e' w
X5 r/ V: @. n1 R. F6 k9 V- j;; set [customer] of customer myself( ^, @; n( d3 {3 G
3 ?$ Y# J: _0 g6 ]# O! y4 f, oset [trade-record-one] of self item (([who] of customer) - 1)
7 @9 s% O& V! T$ C! w f7 ?# ~[trade-record-all]of self
3 D* A: t- w! H, B1 p;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self9 R* X: I) E) w( x, ]8 M/ D) c+ X4 f
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set [trade-record-one] of customer item (([who] of self) - 1) ^+ R0 E3 |3 V* E5 K
[trade-record-all]of customer0 ^' G5 I+ a# Y! |1 o N
$ M2 u/ N' y( L0 y& n; Q8 o
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))9 b4 i \: K4 n
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ask self [do-trust]
' A( h/ O6 a# i" w;;先求i对j的信任度
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4 `* j2 T8 X, [ c: o" \4 iif ([trust-ok] of self)
7 J) K. e0 s/ @" ~8 ^, \;;根据i对j的信任度来决定是否与j进行交易[
, s n/ _5 ?8 |: K) Cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself: K7 A9 V" j, w& ^9 l1 k/ K
% ^7 Q( m p \ [# s# ~( q p5 L[( j! c7 Y; F3 C2 o. f% A
( c9 D" \9 E0 _8 \' _do-trade
$ c d! j' `2 K. t* ^; J( e
h% y7 ]9 A% Y1 aupdate-credibility-ijl' v# K( D! a: T: w: i8 [% {: v
9 `1 [7 s: \9 i% J' j2 ~$ }( f, Cupdate-credibility-list
0 j9 f3 b4 ? H* q
* P; m7 b6 K _& B/ B( K8 R" T5 b4 }9 H# f1 y1 a: Y5 r' d
update-global-reputation-list2 u4 r% P6 P) t/ i
9 [5 e- W1 W, s1 `, C4 f# ypoll-class
- P2 W' ]# B) `* L9 M
$ E$ F3 N( ?( ?get-color5 l2 B$ I' {# v& U O/ [
, B; v/ J9 o t* k
]]3 d$ B) K. Y6 g7 b4 E3 X
* M% D" m% B( g/ s
;;如果所得的信任度满足条件,则进行交易' F' u$ p4 B1 R+ t0 w; h, l
# m* B; N( u+ P" p- t' E[
+ ]1 r( z8 x9 r- j# r6 E% j
& ^; B, t4 K: Lrt random 360
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fd 18 b1 q; Q1 ^5 A1 m- J
1 R3 z1 }: I& q _# e4 `3 U) e7 f/ e5 H]7 u1 _8 s( F& O- a9 u
- S( F; a# J" V
end
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to do-trust + r' t) W# G; t& ?* N2 b
set trust-ok False
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3 V1 x; v6 n, s% e! l# S c6 @
let max-trade-times 0
' A% i$ @1 H' [0 Pforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]2 @. A' r' ^4 E1 B$ w/ @) G
let max-trade-money 00 `9 `# O# q, }. a
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
% w& w, t$ S, n# I4 P ]4 d% clet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
1 i' f* ]3 F6 J: a$ |
, }9 h/ r6 N: E M4 l% C; z
1 k+ d! R3 E$ I3 m/ K! dget-global-proportion) }$ ?6 d7 M* f4 c& q" B
let trust-value
# s& X1 `; o) p; A4 B) ?) e9 hlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)) f2 C9 \/ F6 P( Y! D
if(trust-value > trade-trust-value)2 y2 `( A3 O- _& a% F3 n' v. {: \
[set trust-ok true]
' I* N8 @& f8 P, G2 N& ~end
! [1 g+ B! N* u, K H! n; \3 X: d( v4 Y: B% B4 B
to get-global-proportion8 V* w- L |- D" K! w8 q# C
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* M- w j* L/ Q3 w% j. ? U3 U[set global-proportion 0]2 B4 q1 f8 x7 R- M; X! V
[let i 0& ~! }, [7 {5 A: R% K; \7 e+ {" C; N; s
let sum-money 0% l- c! Q- m+ d' y5 I
while[ i < people]4 p0 C2 u# s; o
[
% p4 ^) k0 y0 b* a dif( length (item i* j, E" H4 z7 V. O& z4 j
[trade-record-all] of customer) > 3 )
% H$ ?' z) A' C @[. q( d \# K: Q% p5 _( ~3 T
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))! i6 g5 [7 h0 J" n3 c' |) G G. R e6 w
]
' d8 y. w2 }$ b- }# []
; A6 `- ~7 X7 m+ ?let j 0% O* Z( s: _) ^( g1 B+ O3 ]
let note 0
. r9 P! J. Y( `3 E. B( Uwhile[ j < people]6 n% ^. m& s& D5 d2 |. S! n
[
( q( Q5 ]9 @5 ?% i5 r. `if( length (item i# I( D: x2 e% X& i- t2 G
[trade-record-all] of customer) > 3 )
" D! t8 l& m9 w9 k, T+ H8 k[
( e% t4 r$ J( O p% {3 _ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 }8 b# c$ _5 M. @2 O[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]. [3 _( ]/ h9 Q/ r3 Q
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
7 Z. k; M( N7 ^! g" T+ @]
' s: ?, d2 \: t4 P( R1 x]1 }9 V6 B# K2 F- e
set global-proportion note* |. [1 V" |; n: s3 U
]( D% o* f, d! _/ v1 Y. u) x2 z1 i: |
end
: m& |5 {2 O6 ~( y. _2 i# H
! V4 v9 @6 ]8 a0 w$ n- Qto do-trade
" v. S' h- T6 R2 R( d* F, x: O4 C' };;这个过程实际上是给双方作出评价的过程
`; B! b( k% X6 S, B- zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
( w- ?4 {4 g% h' U: y0 Pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
8 b; U7 A/ x2 Y% C: Wset trade-record-current lput(timer) trade-record-current z$ {4 [6 k8 n% w
;;评价时间
* X; X0 I m0 c8 Task myself [* o: N4 z3 e! {0 N) M2 `/ L
update-local-reputation$ p: w- h( S! I2 N6 h9 ?0 P
set trade-record-current lput([local-reputation] of myself) trade-record-current' ?6 U7 s7 J& U# a# N/ b e
]
$ f( Q5 I+ o* eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself- g9 M2 J6 Z, w" A) _% l
;;将此次交易的记录加入到trade-record-one中
5 ?: d. p( x8 Fset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)4 j/ {9 Z4 L6 l3 ?: t8 |
let note (item 2 trade-record-current )
1 O2 y4 F7 M) e4 d# ] U, R, zset trade-record-current; Q6 P. ^0 U" b4 X' h
(replace-item 2 trade-record-current (item 3 trade-record-current))$ m- ^& U3 N+ @: v- r6 ]# o
set trade-record-current
5 A" T: |8 E1 k; G" I2 i! @! [; t(replace-item 3 trade-record-current note)
& x# G: }7 B% f7 w1 ?( [
; g. W W( g2 d1 P2 H4 z ~" j: r5 t; v- z
ask customer [
9 [% d2 T* |' F% U' P/ }update-local-reputation* n3 z3 k' h4 G: g0 C) F3 S/ R
set trade-record-current8 s# M: H. r N: [ R5 B
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
; O. U# }' R. w: S: n5 I]
/ v2 G* d: A6 c( n; v: E' U$ a% c. P' @" G
7 S9 o8 ~5 l1 N: Y) Dset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer$ f, U8 P0 K9 W A( P; r
. \2 M6 p# ~1 w/ x6 `! ^set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
! G3 N6 `6 A" a9 x [1 K1 o2 E;;将此次交易的记录加入到customer的trade-record-all中
+ V% l4 w `6 u/ Qend
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to update-local-reputation9 U4 t) P) y' X ^; U+ ?' z
set [trade-record-one-len] of myself length [trade-record-one] of myself
7 t6 M% M ?" @' R$ G5 Y9 K7 s8 D( n) Y* B8 t
- q$ S; c3 [) j. z;;if [trade-record-one-len] of myself > 3
6 S2 r9 C+ Y; V1 ^* lupdate-neighbor-total
! {2 Z# H7 ]- ]9 |, b: U# F;;更新邻居节点的数目,在此进行" q5 l: u0 z4 M
let i 3& I$ h' L; Z$ e9 @0 q
let sum-time 0
/ }2 u% W( @4 E+ k- M6 vwhile[i < [trade-record-one-len] of myself]4 A5 ]: i; e3 i: a
[
6 F6 u5 R F* T; x( y$ g2 Jset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 H% w# [' s4 ]6 p9 @
set i
! E4 D6 y0 k- h3 J" E5 j+ F. a( i + 1)- w; o# x D e% Q& }
]
1 ?! e& `+ @- v- n" `let j 3* e5 x* f* A9 @$ v1 @
let sum-money 05 U3 t! K6 h Z% T- ?! r
while[j < [trade-record-one-len] of myself]1 [4 P- C/ I! T& n: v4 m
[
1 M, ?& ^: Z5 z2 [6 y$ V" W0 ~5 uset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)9 d; C3 }6 h4 x, T- P
set j7 L: O6 [, g D5 W: X
( j + 1)
# F- M$ Z$ m0 ?4 R; U. J# v]1 S9 {2 a# n0 R* v( e9 ?: [- R
let k 3! E8 E: R* _5 L: Q' Z3 ]) E9 z+ j
let power 0& K2 Q" v* b! h+ @' E/ b8 `
let local 0 H- }2 J. {& P5 l: C" K$ U f
while [k <[trade-record-one-len] of myself]
! L3 n" d1 n3 S3 `+ P% o/ P[# l: w" S; b) ~
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)
8 _# m; U, y# V7 P4 lset k (k + 1)
+ d4 z" P, C; g+ H$ g2 G* h], C6 j8 } C" s q- ~5 Q
set [local-reputation] of myself (local)8 s+ ?- x- U/ a. Q
end
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9 s% [3 H) o4 }' Q# f7 _to update-neighbor-total
+ m7 ?8 o" g$ n7 W3 L
- s. S7 |8 q+ u* fif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end; a3 W$ z+ e" B
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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。
+ n, c6 L s7 P, r4 clet l 08 E I2 r. N% @1 Z" X% q8 o* c; r
while[ l < people ]. X O8 w( t/ [& B. A0 O0 a. m
;;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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3 ^( {( P4 }* w; V* V' M' Tlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
. j5 a' O1 |; g% D+ X& uif (trade-record-one-j-l-len > 3)
# L+ o1 D* U9 L) r: C& m* R[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, M' v6 T4 j; L$ k
let i 3 b* N- [0 [( F+ H' O4 p4 f% S) j
let sum-time 0
$ x( J6 c+ x: F* N3 |- z2 ]while[i < trade-record-one-len]/ S& T% A7 _% {6 e- y) k8 N8 g& a( N
[0 w8 g/ S& N2 ]& p( q
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
8 | Y3 K. g- y' F. iset i
: p7 i4 J, C- ]; b2 s8 E; E& k( i + 1)$ N) m7 _1 ~( `% y: W# Q$ C
]. O: n9 T! j+ b3 J8 ?3 }+ k* f
let credibility-i-j-l 0
* o- E: C" {6 q T8 D1 R% x;;i评价(j对jl的评价). S7 y* @& x0 P2 z) \! |& N5 }
let j 37 P. [- a0 n2 j5 M2 P* D
let k 43 A) y/ [' X3 l N/ O7 f
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( r# y! m" [' j4 X5 B2 u! b) u
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)
$ _- s: M1 p) l4 h: eset j
i) G ^" h2 m5 J+ F" L; B; v( j + 1)
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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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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
. m- f0 W, L# d; l: m( \;;及时更新i对l的评价质量的评价% V% }) K8 q* T4 l! z7 H) P
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
- U% F8 X5 H S P5 hset l (l + 1)* ?2 }3 n$ V/ Q3 p
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end
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to update-credibility-list( `2 O; q4 Z, h$ T
let i 0
! B. A9 a! b1 ?- l: F3 j+ @8 ]# Xwhile[i < people]
# O0 g) q1 V4 m3 M4 T[ q! z$ g: c9 t2 w2 l
let j 0
- U. l; I6 ~2 [) ^4 z3 \3 o. jlet note 0
% t7 l( r, @& E- elet k 0
# O6 _# A& B. J4 ]. u1 A+ ~8 g;;计作出过评价的邻居节点的数目- ]8 x% A' i, k5 f; h6 s5 t+ e
while[j < people]
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# ~) _5 A" c' y! ~2 l, Lif (item j( [credibility] of turtle (i + 1)) != -1)* H; D, ~1 D/ s& r0 v0 j" W9 w& y8 U
;;判断是否给本turtle的评价质量做出过评价的节点; S# M6 n: I! L: K9 C0 A* e
[set note (note + item j ([credibility]of turtle (i + 1)))+ r% M }$ B" C. ?2 j
;;*(exp (-(people - 2)))/(people - 2))]
$ s& Q# _* @7 O7 m) [4 r; O) Tset k (k + 1)
% u7 h4 x- Y1 v2 o% d( p]7 ^, n$ ~, I1 e& O8 k! t- ^9 [
set j (j + 1)* d& Q' \1 N, f- _% n
]; E9 n Y* h% W/ C
set note (note *(exp (- (1 / k)))/ k): T, l! ~& L8 [0 M& ^ U1 @: N
set credibility-list (replace-item i credibility-list note)8 q3 e& o: Y+ B' V v
set i (i + 1)
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, s7 X& W; O( _- s6 y. k, g q4 nto update-global-reputation-list
3 N" L$ v5 j5 J8 [let j 0) `% J) e/ p$ [
while[j < people]
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let new 0! r4 k. I5 B _) N2 S- v) C
;;暂存新的一个全局声誉) X' o; b7 N- Q
let i 0
8 |* ]* g4 I, u' s. i2 }: ` elet sum-money 0
/ B n! g8 w3 x% nlet credibility-money 0
G4 r' G8 _; rwhile [i < people]" s7 e! Z8 f3 b: ^" O
[& ^. {- n0 w7 C7 B* X& U. t+ F
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 Z! b. a" a& A4 ~; H; \
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
; @9 q4 t$ i9 I/ \* e4 N! rset i (i + 1)5 \* H7 ]; N" h
]
+ u8 K1 |* {2 ]1 g8 i3 }- Jlet k 0
- _/ o' m) e# a' F8 [! klet new1 01 C" _7 G. E* ?- ]
while [k < people]; r$ @; K8 l" x2 a0 u( ]3 _
[
& h" M' R7 B( Z W3 i L9 Jset 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 p6 y9 J' b$ H8 k1 eset k (k + 1)
% o& Z. \6 p Q2 ~) X]
; _7 O2 p0 [$ k; o* T+ D1 Rset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) # `2 h0 |2 [: b0 X3 ^
set global-reputation-list (replace-item j global-reputation-list new)
# X4 o U% {8 b: x* Y; e2 i4 pset j (j + 1)
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6 J! q0 J3 ~$ T1 l6 Y% b% Rend" m7 o2 \2 I+ Y, A" |) d( [# Z
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. v' b+ F/ K3 _% ]. j( |' ~to get-color
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set color blue
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6 x, e1 H3 T8 O
to poll-class
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& E. V, c) v% j/ p4 j' Y, Tto setup-plot1$ \$ q' w4 G: |5 C( o' a! T
# o8 @2 W; f- R9 g+ ?% Fset-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax. H1 N% T9 t4 G& P$ }
3 e: J8 C- _% n9 v# H v4 Xset-plot-y-range 0.0 ymax
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. k; q( h/ b5 t
to setup-plot2
2 E8 A9 R% |5 [3 H% l0 r
1 g: X% ]) \ Rset-current-plot "Trends-of-global-reputation"4 O. T& Q: T! Z7 N) Q
% Y3 j$ z$ v; F# u6 z
set-plot-x-range 0 xmax$ y9 s+ ~; n' }. e% W, W7 t' L% B
- Z( N, W# S* Y! U" U1 W& zset-plot-y-range 0.0 ymax- c7 K2 I7 {+ r$ o
end1 o* v, x7 U' `, v* p( }6 \
+ Y; a3 E. o |! i8 X
to setup-plot36 Z! G N- B( ?, K
" h& U9 c) R/ X4 E. J$ |8 {: m& `set-current-plot "Trends-of-credibility"
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7 c4 s, s% I) r! l' w, @! Uset-plot-x-range 0 xmax
; `4 s( J5 g$ ~4 B! g. U Z3 }
' ^$ e3 P* K; |! E/ Y+ \0 a8 K5 Cset-plot-y-range 0.0 ymax5 o" T, O; K, u$ ?: k l8 B+ \
end5 _! c5 ^. O: u" a
% ~- ]# ?5 {' ]
to do-plots7 O/ o4 ~- n( [4 O) X& a( u5 f
set-current-plot "Trends-of-Local-reputation"4 U6 X0 w6 O1 x V6 h3 d F
set-current-plot-pen "Honest service"
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9 M8 {1 q& `& |( C- U- n; V[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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