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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5 ~3 T8 t8 a7 ?: q9 T; Z
globals[
8 \: X& r3 {" L; dxmax& ]3 z4 A: z3 E8 p8 v
ymax& q5 Z, ~& c/ M% J$ J( k! }
global-reputation-list
- L# }1 @' x o; f) w
9 L3 H% [/ h9 m, |% ^# i S;;每一个turtle的全局声誉都存在此LIST中1 z4 }) P5 E$ w. H, {
credibility-list* l. J# z1 u$ H/ A- I1 }
;;每一个turtle的评价可信度 L$ v' F% i& U( h. X
honest-service
7 Y; Q' H4 O0 uunhonest-service
2 I2 C7 r* k. [, e' R% Roscillation
& e5 W6 E5 X0 Erand-dynamic8 x: ^ w+ N5 `. e: P
]2 C5 ]0 S$ Q7 T! t" c
- R# G( S; g9 x. c! a; M ~5 t
turtles-own[
9 N ~6 y- k |3 ]& t$ w* rtrade-record-all
. r, O- N6 @' K1 o;;a list of lists,由trade-record-one组成. Z! n# X) p+ V, w
trade-record-one
8 b* ~. S7 m% o; q9 X9 E% B; V;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录- C7 J! [: Y& g; _
$ T9 y' z7 f, o) P: a3 ~
;;[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]] x8 U& k* X; `
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]
1 N' L: J/ u; o! Ycredibility-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( p W k# H- {5 F( G, X
neighbor-total
- X5 \ ?5 T% d- E$ a* f;;记录该turtle的邻居节点的数目* ~6 w# }8 E1 e7 b! D
trade-time
0 K( u+ E0 A" H! M' D; F;;当前发生交易的turtle的交易时间$ T9 Y/ U* |8 p+ s
appraise-give* d/ Y; `% J ?- B# n
;;当前发生交易时给出的评价
( J/ c) {5 @" f7 q- D1 O. Dappraise-receive! ^4 v# d& h9 i( S O, F9 S( m
;;当前发生交易时收到的评价
1 r6 P; h$ |% V# m: Wappraise-time: N* ~, r- n& e
;;当前发生交易时的评价时间) _; a) r0 o( E) t- N. ~$ i
local-reputation-now;;此次交易后相对于对方turtle的局部声誉4 \; }" ?' i- }2 ~
trade-times-total
! d7 B' \1 J1 A/ T- h0 z z;;与当前turtle的交易总次数6 M1 G+ }: @7 p# M1 f
trade-money-total
# }, J3 ~* W/ }! l- \;;与当前turtle的交易总金额
7 Z- G1 b8 I8 ]local-reputation$ P+ a( O: u1 m# x' c8 Y
global-reputation
! W! z: g" @ X Z- \. o1 J% scredibility
" n. A& K! w/ ?9 h9 f2 _0 ^4 n+ Z;;评价可信度,每次交易后都需要更新; r+ h2 I- x( n" T+ O
credibility-all, r* K* ^1 P/ b4 b
;;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; `: K) G3 E! H# [
+ F) q6 }, z4 @0 n, |$ w1 d! V;;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, L4 p/ |- B$ T, B5 T: N& o! F
credibility-one' D5 ?+ \- L+ u- V
;;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" `+ y S" ?+ M
global-proportion
6 F* ]# ]3 t8 W6 k* o+ _7 i9 rcustomer
' V# _3 `( o( ?$ w( wcustomer-no
+ t0 Z7 ^ u! Ytrust-ok- n) U1 C! A4 L* H0 F( Z7 y, L
trade-record-one-len;;trade-record-one的长度7 U8 H- K- u0 j
]. Q, n6 ^7 s* `7 p
2 g0 l! m P2 c2 ?;;setup procedure f3 m5 t+ w* B& S- C% O D5 A1 ~/ i3 O
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to setup& d. _ m. H& q/ ?
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ca
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initialize-settings- E" _ ~% b o6 P
. z: N) q2 d, c3 D. Y2 J1 p, p
crt people [setup-turtles]
; z c6 p5 u& s& }) `/ r- P% W) A0 y% f2 [: ^( ~
reset-timer
5 o9 l; l/ M& L% x/ q& b3 \# @; |0 L3 e. A: D+ m
poll-class
+ j8 w3 _" s4 B- ^! u. V$ |0 c+ p; T2 z8 c+ H+ o
setup-plots
1 d/ O& ^, F2 c$ W& [
$ `4 a5 x* @6 U C' M5 j- Y! ], Ddo-plots ^' J. L5 g4 ?$ T+ u$ z+ \
end
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to initialize-settings
( Q% _3 j! p/ Z! f7 n5 Q/ h: Z% \9 F# }
3 U9 K3 J: e# N# o2 [set global-reputation-list []
* L8 ~, b' v! w& w% P
/ f0 W, o+ x/ w, p! t3 w: gset credibility-list n-values people [0.5]7 S. ~7 b" {6 H6 O* c: H
9 ^1 a- k$ @0 ?set honest-service 0/ c8 s9 z! Y Z0 K- r+ ~$ w
. k/ s9 |# h) y/ u$ [( e) H
set unhonest-service 0
6 O. Y% ]0 n! ]& ?% |8 A7 M; Z \% P& \* O; R
set oscillation 0. S4 u" B7 m! O2 y( H1 z
$ q. u5 W+ F# x M
set rand-dynamic 0
" Y2 C8 K- Y; o6 \8 oend; \$ F9 F9 ]- m3 K
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to setup-turtles
" e Q4 R: @! Q! |9 p+ _$ _3 J- bset shape "person"
: M- G6 E8 T, ^1 P* Y6 h: K3 w+ Psetxy random-xcor random-ycor
& V- e- O$ p0 x1 J! N& v% Hset trade-record-one []
% q t+ x! ] J2 F
% k! A/ l( }0 Y. G8 J8 }set trade-record-all n-values people [(list (? + 1) 0 0)]
1 y' p3 f' v7 k6 ^, Q- p* j1 |* Q0 J' ]
set trade-record-current []
* @. w! j8 j/ i( Y9 h* Eset credibility-receive []- N Z/ o7 k6 `
set local-reputation 0.5' Q. x2 E/ ~0 s7 d8 q
set neighbor-total 0
) B% J' ~% K" d% ?set trade-times-total 0
0 g* k( e) \( e) |3 u6 Y$ cset trade-money-total 04 p; }) J) t$ u- Y
set customer nobody" D' D. D5 m/ k* R
set credibility-all n-values people [creat-credibility]
. u. [' ^4 h7 z5 n; L# L; r( Kset credibility n-values people [-1]9 ~- s. l) [% C' W* u" _. L
get-color
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3 r! r1 h8 u4 B( J* Aend
! v8 ~! \; q$ _6 W1 j1 r: x
+ j& ^1 o! j- j% o( r+ j2 Oto-report creat-credibility% y7 [2 C% D. T' W% _/ T4 k1 w% o8 I
report n-values people [0.5]6 t5 G8 I Y3 C: u
end
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to setup-plots. n* }2 D a( ?, g% G
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set xmax 30" u8 k! O9 C, I# k( Y: @
b) P; Z$ a- Y! J) f% c$ cset ymax 1.0& T* x* [1 @) R( ?/ l! w; w& W
( S7 S9 D& W0 r- Z7 Y: X# `6 T9 w6 y
clear-all-plots
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setup-plot15 R/ _' r. }8 e1 [
, B' H" a, q- ^setup-plot2
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setup-plot3
5 F7 M% v4 ?. t8 }; o% D. Z( o: send
+ `: L# {" q! [, T, j: g
. R; t+ i9 Z; L( y;;run time procedures/ P0 P! w0 q+ [
. J1 E8 o: w+ p6 `0 E" }
to go
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ask turtles [do-business]
+ a0 \1 u! `2 H0 v7 b& xend
4 A8 @, l' O6 X4 s) k5 X% Q* ^: P: d' [, ~5 @( ?! X; Q/ @/ y; ^
to do-business
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8 N$ l" B: }+ `! b& B, |5 C
rt random 3605 b1 a; f2 o; E; N2 @2 G* `1 o
: J. m+ p& t& r; [6 m0 j: P2 Z
fd 16 t+ B' a3 a! y% X$ Q
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ifelse(other turtles-here != nobody)[
& k" _# |8 z( Q" c+ ^3 x# f$ k9 @ [ \$ `
set customer one-of other turtles-here. r5 T9 N0 E6 O2 X
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
/ S+ d& y. q; `- u$ [[trade-record-all]of self/ z5 _% K$ ]0 }
;;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) A& u) j& M1 t' }3 D; s$ R
[trade-record-all]of customer
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* \5 R3 M- c- M/ _1 Vset [trade-record-one-len] of self length [trade-record-one] of self
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& o- |+ a5 e( V9 Bset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
$ K' c5 ~" V5 l' H;;先求i对j的信任度
4 v! z) P5 e5 N7 @
# O2 B0 T) N( M* ]1 Rif ([trust-ok] of self)+ I- p" x) n6 C3 L& i C
;;根据i对j的信任度来决定是否与j进行交易[
! ^/ S$ h; Z% U& `ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
% x' y- h/ A) R) j' V! \/ L5 }* b- U6 p- v$ g
[+ V" l) r0 f6 U, g% |, F- u' [
+ Q/ c8 \8 Q" f* odo-trade( c. W0 D; m& _0 O+ l9 h
4 M- B- Z' u+ E! w& Hupdate-credibility-ijl
- S: d% m% y3 m- O* m2 j/ o) c7 t. d. Y) R: }5 S6 G! i, A
update-credibility-list
; @) S8 k4 O' m& _+ z3 w" g# ~% t
4 L4 M [4 p4 v* p; [. Y
update-global-reputation-list
" a2 W* C. o4 \' Z* L0 w4 r# L8 X3 {2 h; Y
poll-class5 O9 f! b# l B) W# t1 g
% Z* ]) v, g& G+ L }) b9 t; Pget-color
0 b" n5 D$ x$ U2 m6 z( f5 f) Q6 s; ?; B: [
]]1 { U9 \ R/ ]+ e' T& B
. U: E$ z9 e2 h. E+ x
;;如果所得的信任度满足条件,则进行交易( T5 d$ y) ]8 d2 i/ l
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[
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+ T% F. V7 x1 J" [3 |( c8 Frt random 360
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: b, V; \. K- k( N8 w. J4 kfd 1
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$ w2 h/ U; h8 [8 S" Y]
\% O$ I; m) F q, C, C0 K. Q+ f% V' f8 T. X4 s
end, T, |: K# ^1 q$ I; c2 \
; p3 K4 o* @- j) h) ~9 R8 U5 Hto do-trust
. P# ]) @0 `1 _6 J3 o) ?7 jset trust-ok False$ j# k* G. j3 X, V7 c
0 t0 f( x8 c2 A: N" i1 K3 ~" c& J% B( M# c6 C
let max-trade-times 0
5 B8 A, _3 v, _+ Aforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]' M7 u" ]9 \; y. o
let max-trade-money 08 y! [' @ [! i
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]6 b! l+ ^& N% Y3 w1 P
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))% E9 _: e' @1 N" C" t+ t
1 j- Y* a" \, p8 u4 s2 U& V
9 t: U! I' z0 Y) k5 hget-global-proportion
" K: {8 [8 \5 F" jlet trust-value0 h8 V! h( A7 b' I
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)
) d7 Q( b! \' U* jif(trust-value > trade-trust-value)
- c7 g8 Y2 \- b" G; c[set trust-ok true], {& A1 C" Y7 L9 `, K: ]
end8 r Y! `! s8 {4 X
6 W) J4 ?/ u/ e* |2 x
to get-global-proportion
- n( Y* Q% c: d6 f P' u& ^ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
$ c7 h7 r+ C* @3 w- W7 z[set global-proportion 0]
$ C- U- z, M. m3 G0 h# d/ S# d8 B, i[let i 0' K8 ~ ]. I+ O- B) [2 h
let sum-money 0
+ `3 U" S( R8 e; A' mwhile[ i < people] {1 Y% v) Z/ E3 W* f. B
[! C% R7 z8 |2 e% {! Z" m. X
if( length (item i |3 C: X3 T- J. b/ k. o9 Y
[trade-record-all] of customer) > 3 )0 j( b* i9 U4 R! G
[
8 t. ] A- {9 e* ?. N- v7 pset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
& x9 ^+ a7 e: o3 F9 }6 n! ?) b. w]
" W% J2 @5 c2 {9 i]
! A" H, ~0 @& X' B6 \0 Elet j 0* P2 m r" a7 [! x0 ?, j
let note 0
! a4 m% n8 _+ d: e* Fwhile[ j < people]
! F0 h9 l1 N$ _9 v6 h0 F[: F; a& d, l) A
if( length (item i& m2 t8 c* O5 f4 E$ ~6 o3 d
[trade-record-all] of customer) > 3 )! Q" f& k1 _! W0 n2 k9 c
[1 [ p* I8 K5 i! g1 [
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% x1 {# n; }6 Q. h7 T[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ G8 j n0 X K0 W' \[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
6 N9 a- J' E3 Z# [: }: h/ C1 ]9 f) {]0 T6 I2 h$ Q8 ?9 ?6 J7 T" M
]! T$ f) }& D! h. X7 b3 U5 U
set global-proportion note
V! s1 M4 Z9 T; f" ~]
* }7 o8 _0 l" E; Z* L8 x* B& O. Gend3 p2 Z3 ]$ ^+ r( X2 ^
" }, \0 ]& p; M. R3 |to do-trade
$ z* b- G8 S; k4 a;;这个过程实际上是给双方作出评价的过程
" n. ~0 _" m" cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" d% Y$ W9 N7 }% U
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
$ \( g3 ]4 d# D% g* t0 l* c Xset trade-record-current lput(timer) trade-record-current: k) p1 s* w; A- a1 ~
;;评价时间
! U' E' T8 X/ d9 c, b4 ?ask myself [
; s2 u8 H4 s" v5 w0 k$ k9 Fupdate-local-reputation
, o( ~+ `8 A4 u( rset trade-record-current lput([local-reputation] of myself) trade-record-current& ^ T. U; Q" v2 X
]
8 v5 d L; \& I- @set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
/ L t* _; E' |. J+ b5 m;;将此次交易的记录加入到trade-record-one中
) N! ~$ ? H0 P( @7 f% w8 h& ]set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
. k1 h7 J- H: flet note (item 2 trade-record-current ), L& w0 f5 j$ s* A4 e7 Y) e8 ]
set trade-record-current
/ h, o: y* I& G1 g& Q(replace-item 2 trade-record-current (item 3 trade-record-current))
: n0 ]- f& I" D [set trade-record-current
# h& R' V& d% L v2 T(replace-item 3 trade-record-current note)
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1 k9 X7 X \0 [4 i0 l4 M) ^, g% H, ?* f3 ~9 I4 o4 @* J' D
ask customer [
! Q5 m( B" y- Cupdate-local-reputation
- n6 |) G3 T" cset trade-record-current, e5 |/ b+ f7 M& K: _6 q3 M
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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% g" K* Z" Q% r. h3 B
6 o3 r: @+ D1 b3 R# \) W
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
$ \( A1 n! b( x2 F) a7 o4 H: y: Q& X, n; A! k$ L
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
! ?; Y5 t4 s. S6 Q;;将此次交易的记录加入到customer的trade-record-all中
8 D: S# u5 m5 Z1 k. wend
: q) I- Q4 ?! k% o( i
: D5 K- q8 t, L' Hto update-local-reputation# [- m* r7 f' t8 y: X
set [trade-record-one-len] of myself length [trade-record-one] of myself
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+ V9 @* M0 ~9 G& m4 d2 S2 D _5 x$ k" N% O9 ~" Q- w( m
;;if [trade-record-one-len] of myself > 3
# F/ v) H3 `" Y) w p- wupdate-neighbor-total
% p2 P, d* ]3 H/ j9 L;;更新邻居节点的数目,在此进行2 }9 C/ p: |5 K5 b0 m# V
let i 3/ F' O0 |' q6 z$ K. V7 `
let sum-time 03 d3 l) e$ Z! D) l
while[i < [trade-record-one-len] of myself]) H/ t1 r2 Q; x. O9 ^, b7 f: L
[
1 x i( y' T2 N5 eset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
+ D- s9 w& L, l/ ^set i
& C2 {+ ~4 Z; P& R( a* b& {( i + 1)) G' {2 ]! D2 E$ P' z3 u/ M
]+ B$ S8 `/ ?7 h) n
let j 3
! T! H& _5 P" \" \+ @0 J, klet sum-money 0/ I. L) q' |/ \4 U
while[j < [trade-record-one-len] of myself]# ?+ j ~3 g# O; H3 g- z
[9 }; Z- Q# t" A. l! P$ a
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)& P4 `: b% a; b
set j/ R5 `5 l- \2 f6 F6 ]' d+ y$ P
( j + 1)& o2 ~( ~8 G9 |. ]9 P
]
: n+ i/ h! p+ z' N1 J0 Tlet k 3# n5 C: {) m1 e5 ^3 N
let power 0' ~! _* {2 l" `9 w
let local 0
( G+ ?8 x* N% y, ^) ?* n+ Bwhile [k <[trade-record-one-len] of myself]0 L* |9 I) t: J& r
[
) b4 Q$ s V) j) Kset 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)
" h% _! e4 b C! {set k (k + 1)
; j- i4 ?" {- O& r- b, U3 b1 S]. v: Q9 J2 b* ]' J( }& m
set [local-reputation] of myself (local)
( o" ^( ~0 i6 l& H% n+ u3 ^6 jend
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2 m; l, C7 t8 n# p ato update-neighbor-total
" W& I5 n- p. t* _3 P s' V4 U2 S& A% i) U5 S: B
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]6 d7 { [' ?1 W! s) U1 j
- m3 O/ p' V7 w; }7 U B& H7 d
$ p/ w- q0 x2 q' Y7 c- `; Yend. }' g. T+ z" e4 P
- ^6 V6 m8 @+ N/ K$ Vto update-credibility-ijl " q3 v6 j2 g3 q8 d7 t
1 M8 a" c' I8 O6 R4 |1 _7 @0 \3 t
;;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。
. ~- K: b' }& U$ W$ T. X1 o/ e; Ylet l 0
( _3 I$ R& I/ W5 |while[ l < people ]
/ \; |) i" W8 q$ H- @5 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)8 C5 f/ D6 _+ n R5 W* c8 h
if (trade-record-one-j-l-len > 3)
. |/ b4 L8 O+ ]( s( n[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' X7 q9 I( L0 h5 f/ [2 P
let i 3
X9 L. ~" f' z! {- y" I alet sum-time 0
( l; \9 z1 W/ p% Qwhile[i < trade-record-one-len]
3 E- H7 ]' s/ ] Y9 p9 k[, Q5 v+ D4 `. w$ j
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )* K3 x9 q. i7 k- P+ M9 ^
set i
@; {% W! v8 R0 X8 v/ }( i + 1)
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let credibility-i-j-l 0
) S6 T5 @6 P) C7 Y$ w;;i评价(j对jl的评价)/ p0 ]$ Y; f; F5 D. K, A
let j 3
& O n* k2 R' B. G/ n1 \ ^2 slet k 41 ^) o1 F& U+ W
while[j < trade-record-one-len]0 t7 `7 L' }3 v4 n+ x& o4 i
[, o6 s" K8 [! I9 m) b) `. _
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
( c: I/ J& M# X( E5 Z$ Wset 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)
, o/ ]' c" j+ F1 {6 z; K' @set j
" `& d; j" f$ ~$ A9 E+ p" A& N3 w( j + 1)8 _% h9 q. J. e2 F3 e, J
]
?) Z4 W8 m) w+ G6 O! bset [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 )); ]3 I& I# }8 d8 [
8 c9 |% X) c2 b% i
" j! b8 j# i$ v" Elet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ s4 ]' `" P* k0 F* @: S2 e9 J;;及时更新i对l的评价质量的评价0 j r( g) g1 d1 p; n
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]$ b# ]4 H* O" [! Y- }# U
set l (l + 1)
* y, S8 n3 a8 n% X4 \% ?9 |]8 r! D& L; C, }) C, I: N6 ?
end. w8 \6 V: Y7 V$ h n: y$ }6 \
& Y) p* u! H2 f# x
to update-credibility-list! _4 a* A) P/ a6 {: }( r
let i 0! R9 Q- G- @1 F, z# j
while[i < people]( s0 E# m# g" m7 E
[
% x' y E z6 t Q2 l3 F# Alet j 04 d1 b ^3 @2 A; W+ F; q% \
let note 0* e- @; }+ N$ d. t5 ~/ l, t+ N
let k 0: L! ~$ d6 c$ _1 C! {5 O
;;计作出过评价的邻居节点的数目; o: m8 S$ r( Z; l
while[j < people]7 U# I4 X& ?. @* F
[3 ]2 h$ I& L9 u
if (item j( [credibility] of turtle (i + 1)) != -1)
% ~& H! G- H3 u;;判断是否给本turtle的评价质量做出过评价的节点
& W' U- e8 u, R% Z" c# h9 j[set note (note + item j ([credibility]of turtle (i + 1)))
( \5 |/ u! {+ ?) N* l! I" z;;*(exp (-(people - 2)))/(people - 2))]3 j! e( i. Z- ]/ v8 e! |! z# P
set k (k + 1)6 ^; z/ }: r- N5 Z; `
]: X! }8 f' @" k( _! D8 S
set j (j + 1)
. ]4 ~: P) q& e' K9 X]
6 a. F) }2 b: N/ f; h( iset note (note *(exp (- (1 / k)))/ k)# C5 t, b' j& c* v
set credibility-list (replace-item i credibility-list note)
9 F \* Z9 m1 p3 d: e* r# eset i (i + 1)% a$ j1 n* |* H$ [ q" L
]' m l2 K1 C+ B) V, |
end
2 ]/ y, W; s+ m- B2 Z4 x. l5 g
( W" _& k* N: d p. B/ Kto update-global-reputation-list I8 B+ q {, b
let j 02 j: J( \' e9 Q t- v* Z/ a& u
while[j < people]% P6 S z+ [# d
[
# k8 b+ j% P+ L, t% l+ [5 t9 mlet new 0
# q2 P$ {7 p3 Z: F/ ];;暂存新的一个全局声誉 W; ^& N# i2 N4 w7 Q
let i 09 |$ W Q$ ~& i5 H. u3 R9 Q( C
let sum-money 08 B# _0 I) @& Z
let credibility-money 0' ], h& d8 B% |
while [i < people]& q2 l7 _1 U+ a+ J% }
[
: a( X) U. p5 q7 iset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))); _4 t7 i& ^) F# E$ u( g4 `: z6 ]
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))9 A* @& T C( b# H9 H
set i (i + 1)
: T# d& ]1 L) d( P]# D/ Q9 C/ Y2 m4 O' w$ {# Y/ [4 C
let k 0
2 u( r0 W8 y# {4 _let new1 0
9 D2 N1 V+ F, T8 |1 v( {while [k < people]: @/ B1 x0 q/ \/ @4 h
[
* K8 }+ m! c6 s8 b- Z& v* fset 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): s/ K# v8 w3 w2 y& i. ^
set k (k + 1)( P9 O G2 e" A* o0 l. Z
]
) Y7 o# n& G" L @set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
. R' ]9 E9 k) P: m6 @set global-reputation-list (replace-item j global-reputation-list new)
% v7 r& v _9 R9 tset j (j + 1)* T% k8 v( f2 q+ }. W. t
]
- L( a+ f7 t' c4 ]# Q! N9 g1 R: \end0 [1 c- p% u. {
; ]- F8 q$ G O8 m& M* \
; f# d9 y/ j. \% |1 Z7 Y5 z( N
$ }6 U$ D* r( O% N/ ~
to get-color
$ B8 E2 w; e F7 s+ [& c2 @. m! G: v+ B7 x% G9 J
set color blue* l. W' w& _* r* Y) D
end4 b6 J0 h* Q {. S
. j- Q5 b3 D% oto poll-class0 u5 G' C% @( A
end
: ]3 c: n/ E6 B2 ~* u
9 y8 t3 X+ K0 h# v; G: D/ Jto setup-plot14 T8 g1 [; m9 U6 S, a+ B X2 v( y
0 z" F6 s" J' l- r4 E
set-current-plot "Trends-of-Local-reputation" ]& ?3 h& k J. U' O
- V7 R* s; I. k* l+ e9 b% _
set-plot-x-range 0 xmax& h: ~9 ?5 f0 j f- c
, n0 @9 G* C5 q( Y: R
set-plot-y-range 0.0 ymax
! H& [; j6 O& u- e9 E5 vend
3 q0 x% M$ S$ ?$ X. f3 X, N2 @/ k4 c3 `' F) q6 }
to setup-plot2* X4 y0 C% W! G2 L) ]6 Y
: E& G' x6 T& A" u* a
set-current-plot "Trends-of-global-reputation"
$ y) g! O3 J0 l) ]5 M- g$ J% }* P( R
set-plot-x-range 0 xmax# a# a4 y* f. ^; r( w
" u, Z# I: F3 j, N" ]1 H* ]- Cset-plot-y-range 0.0 ymax
# v5 }7 ^& T0 Xend
! x8 f& R5 j0 o
+ j8 ]4 f* e$ Z9 k( [( m5 Oto setup-plot3
: _5 x2 m9 H% x Q' L+ c8 p- v# z8 F& L' }( {& R. D5 d% [5 ~
set-current-plot "Trends-of-credibility"
3 ~5 x* ~' r O: y& L6 B
- r% `5 L( ?& v+ eset-plot-x-range 0 xmax
+ I0 p% ~: ^; o9 s5 i N! B* W$ U9 V1 C7 c
set-plot-y-range 0.0 ymax% X; H/ n* `) Q3 ~
end
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" [3 b f0 s/ W/ R: b: Hto do-plots$ D( L9 g* b/ ~3 ?2 L6 B
set-current-plot "Trends-of-Local-reputation"
/ d( y: E# [- mset-current-plot-pen "Honest service"1 o( N, X+ O: E( t6 {
end
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6 q E. e7 h; W {8 [# ]9 G+ @# j[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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