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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* m4 l3 g6 d/ w8 Z/ J* z
globals[
" S: X6 K& e: L. E' U/ A" oxmax& V n* ?) O) B7 N3 Z
ymax4 I2 F- L# A0 l% q. H" P' C
global-reputation-list
9 S1 e/ M5 [8 f' q: m. O+ g
/ Y* L* g' p. A. \$ p;;每一个turtle的全局声誉都存在此LIST中
& [9 H- |, k" _$ y9 t* z3 S' R; icredibility-list
" N+ ?& h) \( _* f& d3 U* @! c% I& I;;每一个turtle的评价可信度
0 W" @: E- D9 qhonest-service& g. `& a, `$ _ F k
unhonest-service
! U3 e, f% A; ^+ toscillation8 X1 A. C R* O, W; u. S/ D
rand-dynamic8 g1 _2 }9 S" i+ e0 U9 b k
]! v. T+ B, h$ f9 Y4 T" O ?' g
' S, c9 U0 s+ Y# V; b3 d
turtles-own[9 s* R0 R* Y; C5 d; P w U. o7 e
trade-record-all: V! u. q# Q0 t' j/ U9 |
;;a list of lists,由trade-record-one组成
) _$ ]" C5 R$ ttrade-record-one Q, U5 r5 z" c& ~/ o% \) a
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录& S4 P) ]# }) V% a, c# l0 H+ R
9 t" t& U9 j3 B/ C* s" @% S- O6 U;;[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]]/ U' A! e) h( L& s/ i- w# A
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]4 ] a' }: V' b3 J1 O8 s# W
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! \% f, u2 C$ v1 N$ ~) V) A. D
neighbor-total, p2 V6 @! N& [" G4 y* E
;;记录该turtle的邻居节点的数目1 @2 _7 g- U1 H; h
trade-time
. V" Q" p3 n% n" J) D3 P5 _+ i' f;;当前发生交易的turtle的交易时间
( F% C3 z8 a3 O% s8 }) B+ Aappraise-give7 v1 i. l+ ~8 C4 r/ {: |+ ]- t
;;当前发生交易时给出的评价
7 d9 T6 e# _- Q7 H9 x" @- ^) Q. Yappraise-receive+ P5 e) {1 X8 O( L# W q
;;当前发生交易时收到的评价
3 p+ U$ p% o e3 ^- s1 \4 qappraise-time
- M6 j! Q5 \, q; Y+ \! J+ b;;当前发生交易时的评价时间
' [6 o$ `9 K7 a( klocal-reputation-now;;此次交易后相对于对方turtle的局部声誉: |5 N) h7 `4 u$ f; Y% z0 u
trade-times-total
, U7 X! X7 @5 [( @* c3 c;;与当前turtle的交易总次数5 a f- l/ u6 M6 c* W: R
trade-money-total: i/ a7 r, R- c! m
;;与当前turtle的交易总金额
( P0 x: b4 s( O7 {0 Ulocal-reputation" j2 [- \) `7 `/ r
global-reputation
: e7 p: V9 n: N' b5 ]/ O9 Hcredibility
# j1 u" l5 F; N* \' T2 [;;评价可信度,每次交易后都需要更新+ P& e& j7 i A) l
credibility-all
8 B3 j D9 V( }0 J# D7 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0 @; G3 M$ G& ~2 E- n
8 K% n) \4 x4 D- n
;;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0.51 _; U( j2 {) Z: v
credibility-one
# }1 }7 K+ `7 @0 F- @;;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0 t( k1 y( U1 k9 K' C) n
global-proportion8 b" I: G4 ?% u& t# F/ W
customer
) X5 R' ~* z+ m9 m. c! _& I4 B% Rcustomer-no% j, x5 T" o/ s! J8 B M4 k n2 R) n
trust-ok
9 O$ c' g( V. r6 p7 U; K( G3 X2 }trade-record-one-len;;trade-record-one的长度
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" _) W$ r2 N9 Y. S |6 p+ y. W
;;setup procedure
% R$ g4 c3 Q+ w8 p0 U! }- a( V% W" {! R, h
to setup0 t7 U$ L6 `. M9 t
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ca
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initialize-settings7 o5 ^( Q) H o: A% `4 r; O* g' j
# {2 P' @0 P/ M, X6 W" S7 F9 ?0 \crt people [setup-turtles]& k' J. P# c$ R7 i# Y8 O
* C1 F7 v: ^' l: Xreset-timer
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poll-class
# ^ r& c( [" O% s- r) d E. V& Q( {% H4 b% y" d
setup-plots
8 x0 n. u# z, ^ M" X& a7 I% f t/ ~' J( @+ M( O
do-plots, Z/ v4 F! h. ?; p! Y0 F
end
! m* P2 j3 J7 a, v: z8 P
7 O* {# S; s M! N& m" j1 ^to initialize-settings
* w5 d1 q( e1 n; R, ?3 E: `8 v V4 ~ e6 K' W
set global-reputation-list []
; k' D. b* }1 J+ b+ E9 Y1 L* N% Z' `* K$ @9 K4 O, f
set credibility-list n-values people [0.5]
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set honest-service 0! E- n/ M0 ~, d: R! ^
9 F0 }# q* U2 Y# B% S
set unhonest-service 0. `2 ], u) I' v7 r# h. a% P% Z+ ?+ x2 I
( ]$ ~) x. G G1 U# J6 d
set oscillation 0" _2 d- n0 O) d: f
1 M! }. t6 r7 Sset rand-dynamic 0
4 J* T& |5 ~# @5 o; v; k, fend5 R' r) X7 a$ ^( S* h' w3 I
1 g2 G' c0 F0 \: j
to setup-turtles
7 X4 l% k- H1 }, U6 u$ x kset shape "person"
* a5 O) n, j4 u! K( k" V/ n$ `2 ysetxy random-xcor random-ycor& o1 B% q5 u9 s5 C4 G
set trade-record-one []& N2 u7 q$ m5 S% y" o+ T
) B3 i: t6 e9 j- i$ U+ bset trade-record-all n-values people [(list (? + 1) 0 0)] 5 F- a% p8 s7 _) u2 |+ w/ c
+ Y9 m' [# D, B8 @5 D( F0 B" D2 A
set trade-record-current []
w1 g" I s3 R6 ^; Xset credibility-receive []
- m9 \+ {% Q( J: B; f. K% X0 W% _4 kset local-reputation 0.5
! q2 Y9 |% o- F8 Z- A# Gset neighbor-total 0
0 I6 w1 E) T! K6 i0 D. L. xset trade-times-total 0
* m- n8 A, }7 J0 {& `# `set trade-money-total 0' z- l% b, J) X) R: }% R7 O5 C9 c# q
set customer nobody# ~4 V ?0 }7 ~& N2 \& I& q
set credibility-all n-values people [creat-credibility]
& v7 |( Z6 [, B9 w9 B# Z( \- dset credibility n-values people [-1]
9 p( `& K- s, l' Y t3 M3 `get-color
. \, {+ D7 k4 L5 u C" c/ ]! c4 K8 Y% |
end
9 N0 P1 ]2 K2 `+ e/ ]. h5 {! Q7 h2 z( k- i0 h( V; @) K
to-report creat-credibility
$ T) q$ v( d: ?( nreport n-values people [0.5]( P( M/ ]/ ~2 J
end
0 c: [" F& e0 f7 h
! k& U1 A5 k3 n, V6 g4 B X$ L8 sto setup-plots
. {& J5 I( t x0 V1 M" H2 X
6 {! Z C+ V5 i. G% b& iset xmax 30
& j8 f+ |. N0 p5 Z: s1 {2 M
2 f( v& T# l; h2 S6 w" d3 l! ?set ymax 1.0* \# }6 F* a; d
& C6 V8 J- T* K# C; M: B: ~& Y
clear-all-plots! Q, T2 R- O3 i. h% Y/ z
6 z* a+ }* C% X
setup-plot11 D4 }) w# i8 ^/ Y$ m# R
: S5 `) W6 ~& D' Psetup-plot2
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: o: Y; o. F$ N# W$ G1 Zsetup-plot3
- @; v3 Q. c$ O8 v, h# ]+ Aend5 V8 E/ X/ s1 U7 i
* O$ n; v5 E. K, K0 B;;run time procedures
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8 S8 d/ ?5 ~: K. E' R- j9 n7 yto go% c1 d( B! K; _3 S) C
: v3 v( t4 ]9 y+ z0 U& C% s2 k
ask turtles [do-business]9 w; v+ U. V4 m# f( I5 L
end) S1 g0 C+ R7 u8 |, I( f- C
9 R& {: x5 K; _ l! n! c6 ]to do-business
B0 k& a4 w) x7 i: O2 f1 J: B/ s9 _8 `) t
& u4 C4 _# y0 |1 R
rt random 360
7 }9 B+ T, Q2 U5 e# }1 o2 a! e' X) ]9 I6 ~! T
fd 1
+ U& y( C9 O0 K5 S* F7 {) ]5 x2 T# g; n W; P+ U! F
ifelse(other turtles-here != nobody)[
x6 ?% M4 v3 h- M' f3 E7 l8 ~5 z) ?6 n4 |' B
set customer one-of other turtles-here& O) p( ^/ A8 u1 W, l
" n2 \! W' }" M
;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1): ^# n: f8 ]' A9 O/ i
[trade-record-all]of self
/ \5 p+ W8 U0 o- z;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self1 z) Q/ j4 _9 V* {8 W3 a' w* X2 Y5 n
7 t+ ?4 e+ m4 k; Q* T2 I1 ^
set [trade-record-one] of customer item (([who] of self) - 1)+ o1 V6 u( f1 v
[trade-record-all]of customer3 k8 j' ~7 `) L) t' P& M5 u
4 j; g9 b8 ` ?4 R2 ]# mset [trade-record-one-len] of self length [trade-record-one] of self
- h8 c3 s) @# x- g+ V4 j
9 P# n' a6 r9 h2 Uset trade-record-current( list (timer) (random money-upper-limit))+ H+ k# H9 G; `7 P/ C/ f! s5 p1 S
2 s* k& V# E% M$ U8 aask self [do-trust]
3 `: R6 l4 {$ ?;;先求i对j的信任度) D) F! y6 B; S
/ c7 e! |; ]5 B. \) fif ([trust-ok] of self)$ W D1 D5 J& M$ W
;;根据i对j的信任度来决定是否与j进行交易[
% x1 K+ Y0 E# ^% G" Yask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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1 R8 u R9 O }* U6 d8 n[
' M* _ ^2 ?4 A
- j, l# ?8 a, D. q1 kdo-trade
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update-credibility-ijl ^2 f' z% X* a6 E
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update-credibility-list; m8 B7 [4 n( y: @9 z7 ~
: _: W, W0 Y2 C4 O
- R) c: f. r4 ?! u/ `5 r3 l H7 Vupdate-global-reputation-list6 w) A0 U8 e0 ~4 F7 n+ F5 D
; T% ?- g i# a0 L. ]
poll-class {6 q' F+ ~( ?' W, H6 s5 T
- n" ~ E. ]" j* Z' f$ \5 u& Z
get-color$ ^ w, b, u$ v! P) g2 U
6 [0 n* U: Y' G! s
]]( F8 K+ R5 K4 p) r7 d- Z4 n, [6 ]: L: l
% U& {- `5 [5 ]+ C5 F;;如果所得的信任度满足条件,则进行交易
" M% Q1 P) C2 j$ E( t# s: t: F# v$ G# D. E
[
: x( @ ]3 v# e$ D c6 u
; S; {. k% P7 N: hrt random 360
* N1 e) T, ]% K7 ]! t1 b
( d# F1 g& C# \8 o- Mfd 14 }1 s" |' _% X4 v* J; F! k
( ] K3 p* H# t
]. V, s) n' O3 C9 k: M, I3 C
7 S9 i2 T$ T" x4 e' f9 w, }% [" ^7 Pend
3 G' j& |- W+ Y' O% ]" w7 v7 n
to do-trust " n6 T3 D& u" f2 j
set trust-ok False+ l0 @5 _& F; ~- j' x, v
Q3 g1 J* G8 y7 L
; H* a" m4 M$ a, slet max-trade-times 0' z% q! ]# p! Q4 y& Y$ s
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]1 n& X5 n8 v3 { {; g0 k; V+ b! z
let max-trade-money 0
, J$ N r( c* @ x/ d& u) U0 R7 p& O1 n' Oforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
7 v( V' w- ^" m9 ]0 W1 V7 ?1 X! Ilet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% W( r( S7 e! @7 W
$ Z9 N7 h' W9 f: a8 B4 A( [: _0 b- B. }% E! \. k. y' \ f
get-global-proportion$ s3 i7 }1 ~7 z8 }4 O* x0 p
let trust-value# S9 l/ T \1 j7 a% _1 B' o4 \
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)
- W( P) B1 b' |: U; lif(trust-value > trade-trust-value)- u+ |% T) _3 \) l8 i3 R; ~0 r5 f$ w
[set trust-ok true]
1 q! ?& c2 C4 \' X8 @, \! dend
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" h& w- M( D9 lto get-global-proportion( F$ j- |# I( ]. o8 p V
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 w; [. a/ u; p' A, H2 a, y$ R; D; L
[set global-proportion 0]5 R. X8 R( z/ ]
[let i 0; G+ ~6 K7 i* }) F
let sum-money 0$ h: q9 y0 t2 a' m2 X/ F
while[ i < people]1 m6 x* O- Z! I) s$ I) L2 S9 p
[
1 V# g4 {4 G; L+ U0 Sif( length (item i, B1 ]8 r# w; p s
[trade-record-all] of customer) > 3 )9 j' S5 u2 C2 t/ V' G" O
[
% X; ]& ]. u/ R. z9 q! k1 D5 s8 bset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
9 d5 w) B5 S; S# @" v]
) t6 E* B# R% L- n U j4 I]1 b' C% \& j# N
let j 08 h0 j; ]5 K2 D7 i. ]# [6 X
let note 0
1 d% L6 Y' E+ y; X2 e2 A+ _ Twhile[ j < people]
' S, R8 K" R+ X; t. b n B3 ^[
+ `/ z g3 @! i% K I+ Hif( length (item i' U8 s$ P4 b I3 O( S
[trade-record-all] of customer) > 3 )$ b9 ?9 D% I& O6 A! b
[" \$ i3 Y3 c7 o% S+ n: ]! Y% X
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)5 R n4 ~6 }! I
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
% j0 ^& c; V- e3 _, x& L, p# X[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]& r( S1 |/ J) O) u+ p% X, ^0 h1 Q' A
]
, r* y/ b9 Y, \+ {+ `2 d0 {- n]
0 b9 c8 t! M" ~7 A' e, Vset global-proportion note
& F6 S8 u- p1 \: @]6 G* z; j5 n0 t% _- I/ @5 F$ q. L
end& Q% @& ~. W1 E7 V
1 T* Z$ q3 R1 S; {: m' I7 |to do-trade
% [- B, {% b& F# @;;这个过程实际上是给双方作出评价的过程+ B( C7 L2 B- v, J$ W
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
& P3 [6 e$ y6 c x$ n! K0 ?4 G5 ~set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% Q% {1 D& n+ r, pset trade-record-current lput(timer) trade-record-current2 U9 ~6 g) Q. L$ _ C
;;评价时间
r% Q( ?0 b/ s& L$ zask myself [0 z6 T' T8 k1 H5 r! a
update-local-reputation
; q* G( c3 {( n |6 h- t% v6 o8 y2 oset trade-record-current lput([local-reputation] of myself) trade-record-current
. \/ s+ f( I/ K) u5 E! [4 t1 r/ z]
1 ?( U2 p5 J; g( |* Y# b$ \* h* Q* Aset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
' X3 W# s: a) ~3 C. j# p6 M. H9 H;;将此次交易的记录加入到trade-record-one中% _. u+ z9 |! e( C: E. v
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
# N7 b% O. u& [let note (item 2 trade-record-current )& Y0 ~, I: F7 [0 G
set trade-record-current; } }/ r. o; s Q
(replace-item 2 trade-record-current (item 3 trade-record-current))$ ?* g1 \( i0 g
set trade-record-current6 `4 L" y3 W/ R; k7 l4 W
(replace-item 3 trade-record-current note)
. n& U" q! K' D n6 l
9 L m! D4 Z2 Q& b6 t% h: C1 O) e6 u# T4 J2 f' j( t7 Y
ask customer [
% C- a) D/ @% f# Fupdate-local-reputation7 D! t# b4 _* P: O5 T4 Q3 V q
set trade-record-current; |4 ~2 v1 C( ]! F8 p
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
" n, S* w3 S, ]0 c' P3 f]* j# h1 r9 r, r( J% M! a
A; E& L' a% w1 V4 ^. V1 ]- l: W% d d& z7 i+ R* g; }- T
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- O2 `. o" d' d( o
2 Q6 k$ f/ I& d# x/ S( w
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
3 H1 z3 e2 C7 N# {. j;;将此次交易的记录加入到customer的trade-record-all中7 Z: L( N I, g- n8 c) E! h3 i! L
end' I3 X! L0 t. ?( y0 i
+ n. [1 E. O5 A. ~& d8 _6 Eto update-local-reputation5 W, j2 C" k8 }/ D* {+ d* c" K
set [trade-record-one-len] of myself length [trade-record-one] of myself
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! n1 p1 w) a$ `( n
" s+ P& r6 T7 W: H. G;;if [trade-record-one-len] of myself > 3
" K- K8 B0 `* X/ V0 I' Cupdate-neighbor-total
' f+ ~6 A( y" `4 _, f. ?;;更新邻居节点的数目,在此进行
w5 T$ S) S1 P7 {let i 34 }! D1 T' {! D2 R+ ^/ e
let sum-time 0
4 s6 Z) `8 Z j& Z+ Iwhile[i < [trade-record-one-len] of myself]* P! O9 O+ i; @+ K( ?
[
1 V2 n! V( j5 y% f! vset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )3 U# X: U% K( K2 B- v0 Y/ u, p* g0 N
set i
7 g* @4 a9 e6 J! E( i + 1)
4 }) [4 e+ `" M) i+ t1 }+ [0 v]- [ {- j$ A3 C) N3 i0 Q. _# |
let j 3+ C4 k, h: v1 q+ w. B2 B
let sum-money 0
0 [% A* B2 J& [ [" {- L( owhile[j < [trade-record-one-len] of myself]3 B( r0 C* O$ ^& Q$ u" N2 `
[
! D, j3 Q, c' r; c9 b rset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
" t5 ?. |7 p( [" G6 ?, bset j# o0 ~+ {$ V0 Z# H" d' l, Z
( j + 1)
3 f! Q% z( p \4 ?' L5 O; M! a7 y) y] k. l- d) A- W; O K
let k 3* t) C0 q5 j6 e
let power 0
% @, T0 q9 l7 ?4 c/ nlet local 09 x2 a0 N- l* h8 Z
while [k <[trade-record-one-len] of myself]7 T5 y+ x# ^7 ]
[
, v. H( I$ q0 ]8 g, S- Z7 U# U' ~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) 4 g, P- h$ {+ X z, p; b6 F( c5 u
set k (k + 1)0 S8 ^& ?% \0 L. P) w' @" B% u
]
6 i, O: L8 s+ h! {' U' Xset [local-reputation] of myself (local)4 F5 m0 X" s+ o- y/ w4 l1 f3 W7 H
end
: U0 v8 c3 c2 @5 m: M$ }, c
: ^3 \! ?, a% q0 E- b, g5 w! l5 k; Uto update-neighbor-total
7 N4 S" m" Z/ J* ?& m; Y# `5 m j
2 @. ^& Y" y) O. m, i. K- @if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]4 Y* n! W& E+ R+ Z
! b9 m' c) ~3 E% ^7 D5 a6 s3 `' r' H6 d) N( n
end
4 _* |, y n& Y& t2 {
; U. n( i- l" \9 \: c: @to update-credibility-ijl
$ ~$ \2 H5 P( K- \1 j9 q& L6 F8 ^* l1 d: k
;;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。' l3 v a, [0 O" n6 s* Y' D0 K
let l 0
% H; d4 j1 _% ^% m9 R' Ywhile[ l < people ]. y& I! x" S8 R8 \, L; G
;;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
; E d9 w3 P [[- J. U! d9 k3 @. }3 \! M
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
& E. }4 r, r9 A6 w# qif (trade-record-one-j-l-len > 3)
. |8 C, S5 s+ N3 s[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
5 }( y+ N3 P9 f3 Hlet i 33 O9 s# F0 e# p2 z, Y; k
let sum-time 09 T# z1 ~) A) F; K
while[i < trade-record-one-len]/ l' |1 q; C; ^' F6 K6 }
[* \9 U" u" s1 I" r U* ^0 L- a
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )& T7 B \, w2 G) _5 q6 M& i8 y
set i
; R# D8 @' H- _' w( i + 1)
4 s# n+ z. h8 O. L]3 |" Y% @! H2 U9 B
let credibility-i-j-l 0
& a6 \, F5 H$ J;;i评价(j对jl的评价) h, W' J' D, y+ C4 ~5 C
let j 3
: G; G* e {. n! l7 X- [% klet k 4( F- Y" _9 j9 H. C* l! @9 p# {
while[j < trade-record-one-len]
, F7 v9 n6 \& N[
0 ^7 F+ Z. g' Q9 U& ]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- T; L) q2 }+ ?/ S4 s) A
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)5 \* Y2 f; g3 h/ n6 M
set j
e/ E0 [3 t& F( j + 1)
0 a( G8 Z" e6 ?]
( r9 K7 I) r6 i& i4 m2 u4 sset [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 ))
* `9 Q$ O- k7 N" z! ?9 {( i5 o9 y3 V
4 L$ p2 b/ w- @0 q( D% x2 {let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)), Q) u3 r; D0 Q% F. k1 o5 q k
;;及时更新i对l的评价质量的评价& N* r7 D0 _, S E$ ?+ J' p' I
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 y/ Y8 v% |) J- S+ v5 G4 V6 e
set l (l + 1)* z% @7 \5 v9 n* y# Z
]: r/ j/ P H$ u* J* B' q& P* L
end# Q/ N+ R- i. y& A( S
4 c; i' B0 l x. G8 Y! i# \- A/ \to update-credibility-list
7 n1 E7 G$ Q& x4 plet i 0& j3 v! @9 n# G, M) u3 b/ O( e
while[i < people]. B" r$ A0 R$ c( K! j4 F
[
. U3 |' S7 }2 U R1 g# a' e" mlet j 0. w) q" `1 [/ Z: \
let note 0
; ^$ g# _ q. Y7 Xlet k 0
& c# u$ w v F3 U7 |;;计作出过评价的邻居节点的数目/ v, O9 G: j) v
while[j < people]! \% n- @/ d7 O% l1 V* ~) b
[
6 j$ s; I f6 L0 Y/ N5 N0 pif (item j( [credibility] of turtle (i + 1)) != -1)* C* |0 R( x! @& k7 O4 {7 s
;;判断是否给本turtle的评价质量做出过评价的节点
, y" t- Z7 m- g* i) q( F[set note (note + item j ([credibility]of turtle (i + 1)))
L/ V7 a$ T2 [' R0 t5 B2 g;;*(exp (-(people - 2)))/(people - 2))]
" s# _" ?, E, x, X3 S' Iset k (k + 1)1 Y: M W, G1 n5 w( Z0 E1 M
]& _0 l+ r* Z5 a/ m& ?! S/ q, U
set j (j + 1)
; B9 g5 U2 U+ x0 V1 k, r8 M, b/ a]
" T1 c: \5 }3 {- Z% F/ rset note (note *(exp (- (1 / k)))/ k)
' U0 y r) x& F* U: x: [/ G# Zset credibility-list (replace-item i credibility-list note)
( ^( \% L' v- W- S; S- A2 c8 yset i (i + 1)
" F$ H y! I9 k' o( s+ r0 C9 []
4 b7 g- z( m: F T, T! Dend# X; O E# B, V, H) j6 { b O; L7 C
2 u: b, X9 L" d& hto update-global-reputation-list' f3 D0 t( M) q9 X+ b
let j 04 C0 h' [0 t0 a( _* u& S5 k
while[j < people]7 r9 h5 J& _+ ?! L$ V2 | x q
[& j/ ^! a6 k; |3 m- l. r
let new 0
9 Z+ R/ ^" C9 C0 F* U;;暂存新的一个全局声誉8 ]; } S! ?2 z0 J
let i 0# _, z9 g. `* d' ?$ P$ a0 H
let sum-money 0
, J, ?4 _! C$ Q2 L" Zlet credibility-money 0: G. z: z( B" e( c6 ?8 ]. M$ j/ a
while [i < people]0 f4 n& R- k! D u8 M0 L% u; ]
[
8 i! Y3 p$ ~" K4 C4 Pset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
3 ~% |$ h5 C1 M4 [% U' s9 P& Zset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))" z$ c4 m, o" z: x( w
set i (i + 1)9 y2 \4 j7 q; N- T% j6 }: j9 R
]
2 v5 K$ d6 O/ F6 ]4 Olet k 0
' ^' v# E2 I0 }) U% {- F( Y8 Llet new1 0
+ G2 _3 _) D3 w9 t- x% Jwhile [k < people]
* I( C9 ]# J( L& \* e# i[1 p# C6 T- ?# B$ r. p+ S. L6 V
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)7 L+ d0 r: j1 ]) C) @. i
set k (k + 1)
6 k% p1 W9 N& ]]+ M* n% L' h. x0 K
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 9 T2 S* l x3 [& m6 j
set global-reputation-list (replace-item j global-reputation-list new)
* G! Y1 t7 I" `. P# G& E- eset j (j + 1)
9 A5 t/ m+ |( K( b- Q' \; F]/ P; t2 Q" m( T% W: J0 ]' X' m
end
/ z' @+ W3 d9 X: T! l2 t" q5 ?2 f! J! e
' S. i0 R2 J5 ?! e/ R5 ]
/ M" h7 t0 ^2 g" L$ c" Nto get-color1 q! R& k3 S6 j$ q- D5 B
& n# V, `* g% L- W* y) L
set color blue: \ C; u% T+ T* ]5 H; |9 }* m+ o
end
4 [- l8 B; w$ h( D9 Q2 M4 E( {1 D) f& Q8 }5 p$ n& }& \& i' m
to poll-class6 ]: x1 w$ ~% f' C
end; F+ g+ k. @6 g
% P! O; B, k" u# P' T
to setup-plot1: f2 h8 Z/ A' J: r
* j R# m& O* C! rset-current-plot "Trends-of-Local-reputation"0 V8 m2 a4 R7 h7 X! N. a/ z- d# _ X
% I# u5 ]6 N6 ~" b% g5 R& c' ]6 mset-plot-x-range 0 xmax5 y0 d5 ]; e& l6 X& k$ c
6 u6 {- o% _% z5 {) m0 P. Z
set-plot-y-range 0.0 ymax( H/ [& u( @% R$ I
end8 E+ j* @# |6 A$ M& j7 _6 x
' V* ]' O: O- S. I
to setup-plot2! u0 E# {, `9 U
7 }' b: f. N" q
set-current-plot "Trends-of-global-reputation"
6 Q5 w/ d' |- h( P4 f) T2 G" a
; k* H3 m3 Y+ y+ oset-plot-x-range 0 xmax v; K1 `& u+ A( i( ?
V7 K9 E) a/ E) ]
set-plot-y-range 0.0 ymax
( e( s5 e* x4 {' cend5 ]/ I3 U5 E9 H- [3 t
{4 d! Z" v$ J% ]+ {9 ?* L8 r: rto setup-plot3 ? X! G: _% y6 {7 n6 e) Y4 O
; z X- U/ M9 V o
set-current-plot "Trends-of-credibility"
( e7 I1 Y9 P9 H. V$ d. ?5 {$ E! A- e. Z9 G5 P
set-plot-x-range 0 xmax
" A% f9 Q3 U) u% k, f
$ Z5 P$ b; v1 y) a8 i% I6 mset-plot-y-range 0.0 ymax9 ?0 ]! b. e& H6 w
end. s9 f4 j* j: v# o& i
2 t W, q* r% x N3 [
to do-plots% i! }4 b4 s; a y$ ]2 \6 C
set-current-plot "Trends-of-Local-reputation"
: Q! t( [' F" m' J* {set-current-plot-pen "Honest service"' h; I6 @ i6 M$ A' @7 O$ }
end3 A/ s6 ?' o$ ]- ]0 a3 v W2 w3 q
4 Q) q8 x! D: v* C5 c9 F
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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