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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% ]9 [' x$ b& Y) B( `
globals[$ d3 o" l2 D h' S
xmax4 F! L5 l: x0 C5 o
ymax; |1 L# ^5 `1 S6 C
global-reputation-list
& u1 \8 N1 q, l2 ^- v' C$ u* D y, _' j* Y6 ^
;;每一个turtle的全局声誉都存在此LIST中
4 @9 i0 N: C! Icredibility-list3 P/ n' w+ J# G0 p& _
;;每一个turtle的评价可信度
4 A5 i' T0 K- Q" v; ]5 A. mhonest-service
' B) u1 S0 P+ t0 m7 b# d6 J& D% yunhonest-service
; |5 R7 n( f0 {% yoscillation
$ B" E( w( y! trand-dynamic
3 C" C' ~1 G* {4 C. }4 F- ?]5 x2 E, ]1 u) j/ x. C
6 R$ ?* b1 _ C
turtles-own[: ~* \; v- h) c
trade-record-all3 h$ s* T. f# F: c2 `& T. A1 N
;;a list of lists,由trade-record-one组成
- ?9 s2 _: ?1 d0 \9 _ c- H2 etrade-record-one
$ s0 b7 {9 c* I! g) z+ ~( 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
3 N# e1 i: a$ r0 y
5 f) L6 X! j; z# N;;[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]]
6 \& V5 F7 [" }& F: Itrade-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]
5 m) }; x' C( E& \0 a$ Ccredibility-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
) ]) C2 E, Z" } P ?5 lneighbor-total8 m' c$ N: r# _- E; T
;;记录该turtle的邻居节点的数目- u1 `& h- X/ r0 K
trade-time6 f; X" L \6 m6 a' A3 T5 d7 G7 V, o3 ]0 e
;;当前发生交易的turtle的交易时间
* V9 U" `) R/ Y2 s; Zappraise-give
; y1 \- Y4 m6 I( d+ s' v, T;;当前发生交易时给出的评价. S3 d4 P$ w; S4 [& \
appraise-receive$ G' Q% }, c/ h i
;;当前发生交易时收到的评价7 U2 R& i+ I: Q7 h
appraise-time+ H' z# e4 B$ H& g" I1 `) E7 a
;;当前发生交易时的评价时间
, H0 |8 e1 Y4 M4 ?; c) d" X7 xlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
7 K# R, J' ?4 Strade-times-total0 L1 j0 D% U9 R! s
;;与当前turtle的交易总次数
7 }, r- j8 y4 }6 g, Z) @trade-money-total
5 ~9 g# M( p3 Q/ x6 v2 @/ R+ K;;与当前turtle的交易总金额* T$ K" Y0 D2 X2 [6 k
local-reputation
6 e! W8 T x2 ^& A! Xglobal-reputation
5 q9 P2 N/ q2 _0 q, s8 }! Wcredibility
7 Y! f( V7 s7 D/ d$ k) y% F;;评价可信度,每次交易后都需要更新
- |# E; Z ]9 u3 c* E) ]credibility-all
* C9 I! |7 w+ E;;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
! r0 H: K5 K) q; {( b$ f7 f$ h& [" W9 R$ 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
2 ?/ ?" X3 b) E0 Bcredibility-one/ i" M& H) P2 G [2 ^+ Y6 K2 A
;;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/ f9 A1 k8 o) N! E
global-proportion* x% P p1 k( |. c5 _, H- Y
customer
! c3 w, z w- \- P9 z" X$ Q. C* a! Lcustomer-no' e5 }0 l+ H$ n2 z1 b' s3 u
trust-ok; p7 R+ F' ?# y
trade-record-one-len;;trade-record-one的长度
2 Q# j% m& t$ J6 ~8 _" H! o5 h]
9 e3 A. B5 S5 x. \6 N; [' g: ]1 h+ {. l5 _7 Q& M! J; [# g
;;setup procedure- S0 m+ t) {+ ?: q) }% b$ ^7 r7 I
A1 g2 t* G& A: y# zto setup5 \2 Q3 [3 ?: @8 y' A; _/ F
% E, ?0 z! {# p" j8 g0 h& ^2 n3 d
ca
* a. P8 f4 @9 U* i7 N
- a# ?+ \5 f& ^7 ^2 iinitialize-settings
0 Z8 ?5 s0 V6 _7 ~
) W f( m' q y hcrt people [setup-turtles]* T% L' x: e$ f7 k/ n1 c" U. u
6 V2 t7 i& U+ ]! b. ?( W
reset-timer
/ B1 m0 [4 W3 f0 W% O+ A/ Q) E |# g( l8 p2 h F! t
poll-class
- Y- V# a7 g- {# M+ A; w! Q" L# k" Q7 ^: n
setup-plots# ~4 n' N ]! z+ K( q) w4 U& b
5 u) K" ?5 [% Y8 Q3 ^! U5 [do-plots
( i: d% [ I' e0 y9 ^end
, g2 b. _, Q' e6 q, i6 H3 F7 _3 J: l1 ?: J
to initialize-settings! x* r9 t y% e: s/ U- L, |5 Z. C
% b- S$ k0 z0 e' G4 d, e" Tset global-reputation-list []
9 R2 l' {" m1 G" y8 o% x
- _5 v. Z$ a' V- w( x. Q2 ~set credibility-list n-values people [0.5] V; ^1 F/ S6 t0 z& v
4 L* o6 N+ R' O5 E' |
set honest-service 0
/ ]# u8 a6 R6 M. d
5 W& d a6 b* f8 w( I; n1 Fset unhonest-service 06 i# m- |, [3 T( K% R; Z
2 |7 o5 `! A/ c9 j2 Q( _* l z
set oscillation 0
4 Z1 W1 Z% c2 ~4 i' c& [- `& I! H9 s% N
set rand-dynamic 0- f* a# x' {; K
end* ~0 n8 v9 \5 o& ~ K8 \0 f
* s% a- z- A8 G# Q, a
to setup-turtles 7 L+ J h5 N8 T
set shape "person"5 O8 o o1 p2 Q" B7 o
setxy random-xcor random-ycor
4 q! b" L Y1 }. W) s( Rset trade-record-one []
) V$ M4 Q+ P2 m& y. K; N: ~/ W' A- ~# ~
set trade-record-all n-values people [(list (? + 1) 0 0)]
9 I( Q* E2 O$ q `; L" T# t; S, Q z2 x1 K, ?
set trade-record-current []
. u3 j- h" p) i2 }5 C% o1 _set credibility-receive []
, w2 e5 X: U2 R2 O3 Y; V5 u" qset local-reputation 0.5
+ ]8 K! L% L+ c; z; P+ |set neighbor-total 05 t `: W( h/ @* A/ F6 R3 j
set trade-times-total 0, m% `7 ] _$ e( ]0 L- K t
set trade-money-total 0. C5 g& @2 [/ {" h5 y2 [0 D1 `5 n* h
set customer nobody) p( z# ~# _$ @& A. `, L& h
set credibility-all n-values people [creat-credibility]; ~$ ? `$ a4 l& ?* c
set credibility n-values people [-1]
+ p9 g5 c0 K0 Z% v# y# Bget-color% K$ K5 l: {. B
9 ?$ M3 l- W- v, I& ]: V' e
end
9 ?. X5 M$ l2 C" \5 K; g' r. [0 H, S/ k9 l2 I( d5 y2 ~
to-report creat-credibility
e6 g+ k0 m$ }$ U3 preport n-values people [0.5]
2 u- ?4 Z7 J) x! Z* e6 Pend
. B( q7 j: h: t- x0 X8 l: n1 D* u$ ]8 n
to setup-plots
& Y* _( H- `8 W0 Z% z% R" l" n' Y1 S7 y* Y
set xmax 30; s! i9 X @: Z( \1 S3 p
6 g- E7 M! K2 y" I# f" Yset ymax 1.0
+ Z. t0 R7 G! O. z+ r4 ?
% Q# b: j$ b/ J( H/ dclear-all-plots
# D/ l) X( R" ?/ o( ^" C: R0 C4 u; T8 d% ?
setup-plot1
; f- S, r# T! ]+ v6 ~8 _( v p
3 L; k$ e. ?$ x( isetup-plot2$ B" p% B5 Y% [2 B* B
2 @6 U! A$ n# p3 ^7 O. B1 ysetup-plot3( B6 ]! z# Z+ ?6 `/ S
end8 o# \) p! y$ _
W1 V( w* {. n! n q; b) Z* w! n
;;run time procedures
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% w& a9 w- _' A8 g( n1 ito go
+ f' u- A- b t* E! X
2 C8 J1 J. H5 c Sask turtles [do-business]; O& v+ V9 {; s& p! l
end+ {. B, G+ U# H6 j& d6 _
' N" l. L9 A1 \. ~to do-business - [% ?2 O8 P; E& H7 d
: W, U6 F9 K' l9 h7 `3 \
, z3 {$ C0 {1 Zrt random 360
, {3 U {( z& a* Q l. v$ [& ?( B1 u1 T) ]- L) c) ~
fd 1
9 O( A9 Y! ^. b# \- G( G+ F* `' U9 t$ I" B' U' e
ifelse(other turtles-here != nobody)[
9 W" t8 ~/ ?% S' N; q' F$ n8 |9 k; C: `. d4 W
set customer one-of other turtles-here
: v3 U1 _1 a; V0 Q1 Z, q; n% u7 d. `6 `$ X( t" }- L
;; set [customer] of customer myself- C" [& S2 Q, a* F3 j
' E" D3 M( y$ Bset [trade-record-one] of self item (([who] of customer) - 1)
. H8 q' V' d' x' P1 @[trade-record-all]of self# Y) H* X6 A4 A: ^" n ?# b) b5 y1 T
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: A2 Q7 J' ]9 ]/ F; f
$ }2 t2 c( w' w1 f$ ?' Z4 Bset [trade-record-one] of customer item (([who] of self) - 1)
& c8 L+ ~; J* I, ~6 D[trade-record-all]of customer
4 ~; N M8 x5 w E
! O2 h) N3 ^ ~( W5 Z% M2 S; Iset [trade-record-one-len] of self length [trade-record-one] of self/ y3 F* Z# a) x! O# |9 h- E0 n
" O1 _1 U( Z: C0 w
set trade-record-current( list (timer) (random money-upper-limit))
( |, B. j, i/ T6 a) R) L5 O; C7 Z ^) O4 z% J' j5 Q c: W$ l
ask self [do-trust]
) i; f+ G- H2 u: i9 [) b$ w* T;;先求i对j的信任度/ P7 v! a3 ?- E! U8 {
- X. J0 A9 h7 c& Pif ([trust-ok] of self)
2 j" v# S) ~! `;;根据i对j的信任度来决定是否与j进行交易[# C: T' `( A5 f+ ^( g
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself/ C0 ] t# S7 ]; j2 D
/ v1 Y: U5 _7 K. g[
* l/ T2 F5 C/ C0 ~" S; f
' L) Z0 f1 X0 ?do-trade
- O! F0 _" b& L) Z7 _1 T) p9 m- s7 K8 t3 s% P% E
update-credibility-ijl7 c# I% W: @5 t1 H$ i
$ u+ R- M4 C5 J" ?
update-credibility-list
8 i/ M$ z; C7 u! D
. U$ P; |) G9 K
, x2 ^! u0 l6 I: y9 q4 h) Rupdate-global-reputation-list! l9 T' y' S e: b
+ ~9 _, K. C* K4 a9 b7 g) Bpoll-class
& S! x9 b1 s/ X4 D/ m+ C) l, _% T3 \) g; h( F- L7 X- \0 m
get-color
& x/ { w$ ~0 ~5 c7 e( H
' B Z: y2 z, Z$ V, a]]
" M( L7 i, n5 N3 f3 | D- L. ~7 W
8 S3 [) |+ F$ t* p- M0 I4 j;;如果所得的信任度满足条件,则进行交易, J% b' Y* F; v3 u2 i# ?# o
6 E- g3 c! M4 C; ]) b[
1 F; J! D+ [8 t) g# x& u) D" \! W2 x9 z' [. g; s% j# t& W1 x8 W
rt random 3600 t4 e$ \4 c! g5 ], d# w% ?" C
9 E, t3 ^( V5 k' O# L
fd 10 Z! b" u( n5 U' g
m+ A/ ?) X# r, J: V4 s
]+ X& d8 V& C$ \$ ] K) ]
2 W) }. Q! t( \end
5 O$ l. {; u+ K2 F5 X2 ]; O
) H2 k6 S: s4 y7 H! i+ Z' Z$ Wto do-trust
$ j+ |9 B7 z2 zset trust-ok False
3 x! r4 _2 Z( u8 d ^
) G4 B' S! p# E& M. ~/ X9 @+ ]0 f" }% H
let max-trade-times 0
% X: B6 y- R9 d/ W kforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]" C* u# J- R$ W) p+ y4 ^
let max-trade-money 0
' k0 w+ @1 b7 x8 M: i4 pforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]6 |: z9 V( |! N3 c. X7 J: H
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
# U% b$ Q* F3 M7 b* f
* V2 C- e) K3 V* _; ~! R5 I0 k7 Z# O4 i* j# w8 \2 G9 F" m& I0 c
get-global-proportion" s6 N& I; {7 w' F
let trust-value! S6 u9 I# R; p
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)
) u' p- [8 ?' C* M" |0 n0 zif(trust-value > trade-trust-value)
! ]) q# J) k! i[set trust-ok true]
& }0 ~+ Y) I& {' L. w+ Tend% C& K! Y% m+ \$ I, [% t
( c8 i) _5 e/ Sto get-global-proportion
6 U: [% p! W8 i u4 o7 ]ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)3 K9 m! _. U- l4 p9 P5 [
[set global-proportion 0]& h) `% e0 w/ P% a4 g
[let i 0
7 \# y6 y" U1 }let sum-money 0
) E6 j( O8 |% Nwhile[ i < people]# E: b1 [! V0 [8 c/ G1 r6 }2 v
[3 `0 K7 d: }& X- |! z
if( length (item i4 |7 O) e/ h( o v5 {- ^
[trade-record-all] of customer) > 3 )
* u' d- k( C* K, I7 w. e' T: z6 `[
. ^* l z6 n; [7 I6 Zset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
) b& h% t; B: ?( b]" p( x, a/ Q, _) H2 `- s! }
]
b" q, o7 `4 v- hlet j 0
V( U( i- A# h/ U9 |let note 0( a- A- T2 S5 h' ?3 ?6 ]4 F
while[ j < people]
! \- M0 S$ [6 A' c4 |" c8 Y' C2 {[
: @% _1 q1 M- X4 U- b" Wif( length (item i
8 w$ H/ W4 U) v$ r; d- n[trade-record-all] of customer) > 3 )5 n/ y j7 L& ~
[
; [( j T/ a1 B3 } Q$ tifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 V' ?% S4 d; b# H' J[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]: e: z. V8 p2 N: |
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
6 ~4 ^% m6 Y; i# h7 {]2 d1 u V) f. P# h/ I6 e
]4 @9 j/ Y0 t' @$ i4 V
set global-proportion note
% t! s8 T. w! h" Z. Y) v/ v]/ w5 q+ |: d" Z4 K: k5 b
end9 c! O% H$ y. _! X: {7 d
6 O2 Y2 [: E$ a; Y+ m# u6 ito do-trade
3 g# J( I$ [) P& W;;这个过程实际上是给双方作出评价的过程
& b* D2 T- G% x/ R8 R- K2 Z4 Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价5 A5 b. {+ e" P, ?& J
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价5 I5 U- t' _ f
set trade-record-current lput(timer) trade-record-current
( \) D; B4 S& W0 C3 |;;评价时间; n' d! x S) c7 L% V* \
ask myself [
8 W! i6 _. y. j Q. I8 i2 aupdate-local-reputation
1 l& n/ k1 O- Q& n' D, h9 H, Z$ Hset trade-record-current lput([local-reputation] of myself) trade-record-current
# |* I6 W. `/ `' y [' M1 |]' S2 l% u/ ]! `# j/ J5 j
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
, K8 V; P) E2 W4 P4 X;;将此次交易的记录加入到trade-record-one中
& q/ Q+ d0 ?) `' i1 Oset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
- s' k9 q; B+ Clet note (item 2 trade-record-current )
+ W6 Z4 j- j, I# J+ K( u& aset trade-record-current7 g; R* [2 k5 X& D& z
(replace-item 2 trade-record-current (item 3 trade-record-current)); ?, \8 ~9 U6 Z& K3 f
set trade-record-current$ s, N1 L. c# c3 D
(replace-item 3 trade-record-current note)* l [# r! ~/ h; U7 W9 p
+ m% f( c# e/ y* }* o# k3 n4 }4 }3 I( q2 { A) _
ask customer [9 Q5 N8 H4 z) V* m. o6 P% H9 @
update-local-reputation
* f, k6 c6 C w9 P$ pset trade-record-current+ ]. e# _4 W5 W4 I
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) & a3 b, T2 g* D+ g5 a
]0 a# w& M) ]9 W# w# v% K" J5 W
|& w) i! Z0 L3 a f8 ] K: D
4 d- b. w9 _) `$ v* M: r. \
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
( B7 ]9 a R8 T
. U q% u' S& Y& g3 y0 i: ?set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
# k2 b" M' B4 S* k f7 e; ^) h;;将此次交易的记录加入到customer的trade-record-all中 J; U9 V7 x0 D: p5 Z
end& Q9 l! f2 L# I3 p$ V2 W3 _; y
* c0 \2 u% @0 ^( ~! _, c4 t' s
to update-local-reputation f5 a V% R- K4 c+ w) w9 L2 C- n
set [trade-record-one-len] of myself length [trade-record-one] of myself4 }( i9 ? X+ I9 c o+ ?
F4 X6 b% f5 K. ?
5 _: [2 `( e* N- t
;;if [trade-record-one-len] of myself > 3
~, o7 r+ I& r: x5 `& i! dupdate-neighbor-total
$ s2 g/ p/ ?' F- S;;更新邻居节点的数目,在此进行
- M, x9 J6 m6 l: }; _. Tlet i 3
1 k" ?- Z h$ Q# X# p- J. wlet sum-time 0
6 ?8 y5 J. @* Y5 Y* |+ j/ f+ nwhile[i < [trade-record-one-len] of myself]
% e' _9 A" p: d" v, n9 S- a7 W[
, C' Q) b& S5 |1 R4 z2 F% }set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 n; B& u' @, O' K* W8 h( R* k1 O& a( b
set i3 h1 M8 S: _8 f# _
( i + 1)3 v$ B; g: X1 Y
]
" A% W4 a4 _* I3 V4 R5 }let j 32 ?( D! n5 J" }% g
let sum-money 0, E7 T) ]& W( U6 j
while[j < [trade-record-one-len] of myself]
+ h: s5 ]' {3 T[! j: O$ O, U9 `9 e1 N
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)
! r- Q$ C$ Q1 @; aset j
- D5 d# i5 A9 i' X: O2 ]( j + 1)! `4 _; H" X2 e5 N( [
]1 W" [# n7 ~' V2 c7 V/ o6 k
let k 36 j# ]5 }: _. a
let power 09 ?! H* o% f9 I# I5 c/ I# A
let local 0
( ?' Y; E6 j Q6 {8 _6 g9 i; N2 r5 Lwhile [k <[trade-record-one-len] of myself]
1 x/ o y. ]# K$ ^0 P[5 Y2 V& E9 H$ F
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) / P! C3 D, s k* t+ A2 g# ?
set k (k + 1)+ F$ \. @& f' |2 X4 r& C
]
$ x6 N0 y3 |! m3 ^/ {4 e) o, Aset [local-reputation] of myself (local)
/ r7 i9 r; A6 p6 [1 W* [end, v% L6 }( \6 ~5 Q3 {+ I
; |% y2 j% E+ Y# }2 ]$ i' J
to update-neighbor-total
0 X- I! y, l2 {; M5 N- l' R1 X
8 p) ?5 R) x" i) F( U/ Yif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# t( L0 w% Z* l( w O
1 L7 F- S. _ Y! r" w1 ?& t6 z! }7 x$ P' W; f
end
6 U3 S) o/ x, b! Z P# @( K: C5 |8 Q* G- q" f% U5 m$ {
to update-credibility-ijl ' f g' u9 ^" p. m( G
. N$ U% d' Y8 e5 [- Z;;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。2 J B- u3 s# ^5 H* x7 _ V( z
let l 0
9 m( C1 x0 \5 e8 v$ _3 dwhile[ l < people ]
- q4 }, Q3 M* ?" J/ l: y) j/ ];;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9 G# [; A& S# ~/ N% m
[( _- |! H6 o L9 \9 u
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
$ r' Z- z8 g% s+ ^9 q, V6 c6 Cif (trade-record-one-j-l-len > 3)
2 {6 v3 L6 [- L9 q2 j[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
7 `) g! G) Z7 O, @5 ?- o) ]6 Zlet i 3
% @! B- z$ d/ H6 B, Clet sum-time 05 }8 V& A2 i0 G' Y7 m* r& e( }7 {
while[i < trade-record-one-len]
* K! y: v# y0 [! p/ i, j[
+ J+ A& S% i, lset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
3 P5 ?6 y, M8 t0 Q& v2 ^1 [& |% Jset i
' \& c1 a7 A9 s3 }0 l! t. \* \( i + 1)
8 J" z) R" l$ o8 G4 D, E* r]4 O: x8 X0 H# w) d( K
let credibility-i-j-l 0
8 X) e* @/ `+ @3 n# ^- ]4 W# V;;i评价(j对jl的评价)
6 n4 o3 N, `+ [+ B: alet j 3
8 E! W% g7 a. o! W1 e' V7 w ~let k 40 J3 Q z/ W& U( [ d$ r
while[j < trade-record-one-len]! t6 q0 j3 k+ K' d3 Q
[
: d, E& H( m* q) ~+ @9 Iwhile [((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
$ N& P0 N& I0 G/ _9 Fset 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, M! M# B) `" y) _3 T) h
set j
% H- M3 Z: V5 e) ?/ e6 A( j + 1)( u n6 q7 h- F' O* I, X1 t! A
]# J1 @# p0 l* H( K) L
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 ))' D+ y1 a- j( }$ b( t d
6 L: G& f" [' g4 Y6 ~: G( i! i5 C& q4 _0 t
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ s0 G; |% d! C;;及时更新i对l的评价质量的评价, Q2 E. p: O+ p+ E `
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]: Y! ^( \! _/ M/ g
set l (l + 1)
0 Y/ ]! U; Q2 @; F: o/ N]& M7 W# [ V M q- K( M1 v
end2 ]% P- X `. N( E6 _. X
- h% U" u1 \. e8 m1 Qto update-credibility-list
* P& s: O/ I1 t) l% U, F& Alet i 07 E6 X/ i8 S, Z' C% g: G
while[i < people]
: s1 J+ X' e( d+ [+ N/ q[, G X" |' ^9 \ M$ f1 `. Q* y. u+ G9 x
let j 0
5 E! X# e( n6 T0 klet note 0
1 ~8 z* @5 `2 n) A( \ J( n, Ilet k 07 {2 e$ F @' n# Z# L
;;计作出过评价的邻居节点的数目
# D# z3 m- } S3 Swhile[j < people]2 z' m, {# [: ?5 ], k* _
[9 H" {+ K3 N# z. B) C" J1 X
if (item j( [credibility] of turtle (i + 1)) != -1)
7 G- U2 t5 P* j, X- R& } e;;判断是否给本turtle的评价质量做出过评价的节点, ^& s% o* _, Q/ q9 w1 G& x' e
[set note (note + item j ([credibility]of turtle (i + 1))) A) e( U% {* E/ Y0 U( b/ f2 t
;;*(exp (-(people - 2)))/(people - 2))]
2 G& ~$ e6 \/ f$ T! G9 n. q, s2 Vset k (k + 1)
* E( b1 N. _" Q]4 E, E/ d2 ~$ ^) U
set j (j + 1) W$ M' E/ ~! C7 I$ f
]4 V# M6 j! s8 n( c
set note (note *(exp (- (1 / k)))/ k)
' Q2 _* c; G# G5 q! _4 V7 l* eset credibility-list (replace-item i credibility-list note)
" H+ B6 ]* x8 e; G1 ?0 T, kset i (i + 1)" ?; r5 e& b6 F* }
]4 }6 N5 p6 ?! w
end! V- v& v& B- I. h: V) F
" Z1 D8 T% R3 j# r1 {7 j6 P( }to update-global-reputation-list# e1 T( b. { l8 g$ c8 M
let j 0! x0 D8 u1 X# X4 B2 @
while[j < people]
' ]2 ?" u1 D8 G8 R[, B- i9 q' s1 p/ f8 S
let new 03 q. z% ?; Y: c, n' F Q
;;暂存新的一个全局声誉0 {/ u- Z/ X A; ^
let i 01 ?% f: o1 a' f( n( g8 M& s
let sum-money 0
9 G% R) u6 y5 {; Z9 _let credibility-money 0% w2 I* n4 ]! H- H% m. E
while [i < people]( {# I- T0 P! N5 G; j5 v
[
8 t/ A" b3 X U8 |set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))$ B+ J u# y c* V0 O
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
& ]. ?5 Z, p; U9 ~4 n1 Fset i (i + 1)
+ \/ n. G8 z: E/ q/ t, U5 X]* V, ~0 @4 Q5 X/ y2 S7 J
let k 08 v& W! L4 ~* u- x% Q3 w' o
let new1 0! v/ @% F5 \0 Y! D' v+ D- @$ b9 D
while [k < people]
9 v* f6 @" B( [8 C: L" L[/ n2 D& U- z" h9 Q# i
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)
+ G) P/ m) U& X, N% }set k (k + 1)( X9 e: ?) _4 H0 h( L
]) z! O+ k% C# ~
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) , y+ ` C/ `/ N8 n( K9 @) ?0 u) @0 e
set global-reputation-list (replace-item j global-reputation-list new)
5 Y2 d! w+ Y# n3 A( D o5 jset j (j + 1)
1 @) ?0 d1 P; x. I]
* B2 @$ H# A1 ?% {, aend" H2 G2 T; V% @
. ~$ v4 Y; e+ J6 X5 s. p7 ~2 ]5 }4 ~6 N: n3 {
6 L9 }1 y' n% Z, \$ A" Q: i) fto get-color* t9 q B' u) B% r
0 o" `, Z! _! ~& a2 ]set color blue2 g7 C- _9 d2 o" f
end+ c; n9 |3 k( t% W
# X$ R) M2 y5 B0 N1 q4 ~! u
to poll-class. r' o% V6 s& H5 A7 _7 m8 k3 k9 Y
end
O5 S: }$ K& J7 L- @8 z; f4 F6 ]5 u
to setup-plot1) `* e- {; t5 V6 L$ Y) z1 x1 Z' v
; }. T& S$ b0 v Vset-current-plot "Trends-of-Local-reputation"6 Z# ]& y! C( k$ p# L$ ?
4 W" L# k0 W+ w3 E, T, O2 a
set-plot-x-range 0 xmax
' Y: j+ N4 w$ z" x( ?$ \
! E8 @8 s) [$ Kset-plot-y-range 0.0 ymax
6 P0 c4 V0 y' Xend2 Q' \2 ^: s0 q1 L
% F- B; s h2 d4 t" ?( Y) `* E6 _to setup-plot22 n. W2 t) Z. W
, o" P1 l1 r2 z4 S& y. _2 g2 L- c+ Fset-current-plot "Trends-of-global-reputation"8 U( J* J2 L0 F* I1 m
% O1 e: @, U: `# j, L2 g
set-plot-x-range 0 xmax
" m. t! ^9 X. o( G' \* U+ ]
$ Q7 H+ S, [# X/ n& pset-plot-y-range 0.0 ymax
6 Q2 Z ]$ `: c$ ?end: k d: s ^1 L8 E3 p4 D
) l8 O% P8 J' k. fto setup-plot32 v$ n. n5 }4 \3 h+ C, |0 F
; P# i$ w8 @" o0 Z5 Hset-current-plot "Trends-of-credibility"
; J; r Q) E3 U, D0 a$ d, i
; i# G; g! J- R# L2 F, |set-plot-x-range 0 xmax9 R- x2 d' Z' [+ }0 t
2 g5 Q: M8 C5 a o) K+ G: u
set-plot-y-range 0.0 ymax" S% [: ?! z: Z
end. P. ~+ ~: A. @+ a7 u2 _; s; N
5 O% r& d+ X9 t" R3 p" {
to do-plots/ H# `+ H6 f2 [9 P* S2 |$ l
set-current-plot "Trends-of-Local-reputation"- \2 L/ Q) b& b7 p8 N5 R4 F
set-current-plot-pen "Honest service"
; P9 A+ M; R# l6 J$ S) Z' U+ A% Send
& l$ Z* i; |# N: R8 J% B0 F9 P: w2 I5 O
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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