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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
: m" S, ~ O; _/ Z p# Cglobals[
. l# o# G" g, _" axmax8 m& d: K; P" r; b* K O3 f& O8 Y
ymax
/ q- {% z$ n! C) |global-reputation-list
' ^& M4 `2 t) q% w+ a& q8 V6 R& v) y/ Q; d
;;每一个turtle的全局声誉都存在此LIST中' V( \: q+ w" d0 m
credibility-list
5 H& D2 J/ t, k9 W;;每一个turtle的评价可信度2 B) @( ]- }5 T6 l
honest-service$ L' u& K; P) a# b8 _/ j
unhonest-service
2 t- O; \/ S: {- B1 X' b1 h9 ?oscillation
# N, z) D L/ ]! h; b$ lrand-dynamic
$ U1 P, ]( D' W]
& C" H! g- L+ G% X& E8 }& L( |7 L8 x, p" m( \! B$ Y: B
turtles-own[$ `4 g, H8 z9 V# @0 v3 G5 `+ H* ~
trade-record-all
# C0 W- H1 @* v4 l; R; ~6 D;;a list of lists,由trade-record-one组成
* A4 Z8 {4 @7 ]6 z n1 ^trade-record-one
& C9 f7 ?" {: }- K( k) |- H; E;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录4 F8 w2 h# F$ E; I% X
: @/ J3 s I# x* t. B& A: i8 H
;;[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]]
5 H2 I3 F+ ~% u- q5 A5 a( W! 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]) _! S/ d- o0 A6 u# o% Y
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
9 q) f( f& C2 q# K% pneighbor-total
& b# A; J- K7 s0 o;;记录该turtle的邻居节点的数目: t4 j1 ]5 |- B" V4 u
trade-time; V# |) Y }# p9 R) S3 Z+ P& r( A. q, _! J+ P
;;当前发生交易的turtle的交易时间9 A1 w0 B7 D- O$ b$ i& g
appraise-give
# ~. g4 U( d- d5 ^- V( Z% d;;当前发生交易时给出的评价
. p% d- C# G l. o r k; }( gappraise-receive
" d1 \0 Q5 `6 |9 y Y$ w! j% P;;当前发生交易时收到的评价
U$ {7 n4 m, ~9 v% ~appraise-time, B/ }( E( E9 @3 W/ z& T$ O
;;当前发生交易时的评价时间
! p' K; _. {' B8 {0 g: Vlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
% Y$ O! B- U; l' M6 P2 ?trade-times-total
0 r0 m+ o- d s0 v;;与当前turtle的交易总次数" s$ Y8 j2 O" q: h5 D, p' j. e
trade-money-total
* `, V. P* r) y K;;与当前turtle的交易总金额
5 S' U) B! u$ H8 ?6 m/ Rlocal-reputation; i2 a6 g0 t( A: T7 y
global-reputation" e/ e m" B' t* V: K& s
credibility
' ^" z2 j* f* H3 W n% _! T+ b;;评价可信度,每次交易后都需要更新6 [8 Q, R! `! `3 E C
credibility-all1 u G/ {7 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
* t9 v) u' X) ^) P2 r- B" }7 a: p0 m7 M/ }; c/ \
;;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. j" Q( q) m7 f' F
credibility-one
! T* w( c# d3 Y1 J5 P;;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* X7 {# C; [' K( g3 r
global-proportion
9 r+ c' D% @5 V1 \customer e2 `! I0 R- c# V, g. t4 h
customer-no
2 V6 f$ R. n1 c! d+ {trust-ok
4 p, ]" f+ Z# h0 f) Ytrade-record-one-len;;trade-record-one的长度
! j; f0 Q# Q" g4 P, `]3 K, J, U( W |: J' ^- K
# S" z3 U/ k$ s) t3 D;;setup procedure5 O0 P0 ]5 \" z" ^4 _& p' m# l
- D b1 j; H9 `4 G0 _: \to setup
6 Q5 S) Y; h/ b4 q/ `$ }) H% i- I1 n, h5 x1 G( |; Q- P* P1 X
ca
% u) I8 f/ W* Y& _& j: K7 m* Y2 D& `) q/ [' U, |& x8 d
initialize-settings
7 x; S, x3 x) u, O# h) _
' @% i" t, w H' k; p+ A: f) pcrt people [setup-turtles]3 E- x+ c1 W6 ]5 J p. A
, y# U4 V, @- ~& u4 G) _, ]! Qreset-timer/ o. S, G: l6 A+ A) C/ _5 k7 H
m& ^$ X& o( D5 m- I' Z' M
poll-class
$ Q* p' B2 h" l1 W; y
" {. T2 O" C/ [- T: Y$ Tsetup-plots q! U% K4 z) u% Z+ E2 ?% h
& o4 `8 {" j- Q& Y
do-plots
' W* i/ X- [" kend
$ _- i* k$ d2 h
9 [5 i3 j1 c; D6 Z4 D. f- bto initialize-settings! _# m9 v, l2 X# k! `6 |4 s$ b
% b5 v* O2 R0 ]set global-reputation-list []6 V3 D( e7 G& Z" P
1 u$ @5 F) X) u* cset credibility-list n-values people [0.5]. n! M2 Z! u4 k
. ~% g8 U( v8 G# ]: V3 ]
set honest-service 0
8 q8 F* g, I/ G: L2 K- E$ h1 g6 _5 h# V
set unhonest-service 0
3 I) g% O, |) [$ s0 e6 |9 w/ t+ F' ^1 u
set oscillation 0! a) x: e( c' s: u0 {) A5 n( x( f
3 W* K% p: x, ^( j Pset rand-dynamic 0
; n% U( [, t3 A- ]( C( @: Gend2 V3 d' H2 b3 j5 r1 F
0 X4 B( ]8 d5 Z8 @% Z
to setup-turtles , D3 u% X8 q, x, R) [9 D
set shape "person") H3 T2 H/ M- H1 i0 f' |9 q
setxy random-xcor random-ycor8 N& p E) l4 f2 u1 ^! k
set trade-record-one []3 R0 V" j: f4 t( S7 j9 k: @
3 k8 r) ?- g) r; R
set trade-record-all n-values people [(list (? + 1) 0 0)]
! t7 M0 g" C- B6 y" E- R- H4 g0 J, ]6 L7 \- K) [5 u
set trade-record-current []
+ i# G- o! @- `) E' Eset credibility-receive []2 A: p/ h; X3 [# Q6 {# Y" b
set local-reputation 0.51 Z7 U; t- m- G' u4 q
set neighbor-total 0+ e: t- F7 {2 h$ i% {+ c: M+ v
set trade-times-total 0" z+ \& S, @0 B$ _! T" l
set trade-money-total 0
7 }$ t2 ?8 }1 i W9 nset customer nobody/ g+ f1 G# a' ^4 M: c' z: o6 U
set credibility-all n-values people [creat-credibility]/ m" F1 _& |: b1 z
set credibility n-values people [-1]
' I# v/ r. z8 L- _& _get-color Z- Q2 p8 w& a5 E
; a; k! Z% W% `$ y6 g$ V5 e8 ~- Oend0 V) ?/ n1 C' }( G# g$ g# R
8 X6 p7 ]1 w) C8 q9 \: S
to-report creat-credibility
0 G/ T7 D7 \7 B% d: P8 Wreport n-values people [0.5]% H) B8 J7 L/ ?! T) w
end
) |: l0 x3 r# r4 h2 f/ O2 [
{! F$ z! U _% C3 wto setup-plots+ R0 I! M0 B; D8 D, m7 e" ^
9 p* \, {3 c* }0 ?& A W! aset xmax 30
) q6 p5 M) j3 v' m: }- o6 q8 ^' f" M) ]8 s- S7 B) R
set ymax 1.0
/ [0 c$ ?* N" P" L8 m; o
5 `6 H) E9 s) Y3 mclear-all-plots
+ ^/ n+ `1 }7 s% W! e( G$ Y5 W* |; T' v! A
setup-plot1
8 h$ a2 e2 j0 O6 e" ]1 K0 A) [! n6 d$ k4 X- |
setup-plot2
% N+ S2 Y8 X! X, {! B: W m; R9 \ s4 J1 r/ n. C( [! Q" |, U
setup-plot34 Q- |5 E$ s. g& g
end0 \7 M4 S/ l/ s7 k! S- g
" K. _) W- a3 e% H" p8 U# X3 w$ I M2 s) l
;;run time procedures) ^, O+ W' W0 h& k0 _( L( X
3 J" z3 s- m* ~% S/ Vto go9 c- v4 g: p- k1 p0 l8 ?$ {
( w1 D1 d E, R0 ~1 b
ask turtles [do-business]" { a6 D( l$ x& E* W6 ^. L
end/ x$ c8 m7 k0 t) q9 N6 c
$ y( ?- P+ w4 sto do-business
9 K# P) i& f& Z5 ]7 Q' o7 @4 y9 C+ R
; n: a* i' \: N# i# [( m5 J+ u* F' t* c
rt random 360
7 D* y* _& B! v7 u9 ^1 [% N5 C/ g# G. F! M
fd 1
0 n6 x& H8 J& I; B7 j% d% z! {% V0 L: C/ u! [6 s4 [: D. ]5 V/ O
ifelse(other turtles-here != nobody)[
$ C/ g$ ~2 Q$ n& }6 ]5 r
8 u! `( H: Q! _5 {- _- s7 X$ N6 lset customer one-of other turtles-here) A9 }3 o' I, N
7 t- s6 p. K; F, e# z;; set [customer] of customer myself
3 L1 q" k$ h a" L6 Z7 T
; J; }2 {8 [( J! |* Nset [trade-record-one] of self item (([who] of customer) - 1)
2 a: @4 l1 S2 t6 e6 D! I[trade-record-all]of self
7 ?; W3 d- M( s' b;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self- _; P& X0 F, _& W4 ^6 x
9 E- T' E% K( nset [trade-record-one] of customer item (([who] of self) - 1)
; Y( r9 b( d% \2 N% R2 O9 O, ~[trade-record-all]of customer# ]" H% G3 Y2 p3 v/ h
8 U, @" c- k* d& h) vset [trade-record-one-len] of self length [trade-record-one] of self" K4 s2 X) [$ ?9 z8 h% ^1 v
$ M9 ?5 m' [2 o3 e% X2 M7 F; Zset trade-record-current( list (timer) (random money-upper-limit))0 C& m1 V t: Q: y) N0 e5 P+ r% F0 g
) k. q7 B) h" A1 E3 o. jask self [do-trust]
`( h# p& Z; C;;先求i对j的信任度1 f$ g- d9 a* i* ]3 `5 m
7 U0 Q- o6 ?9 P. j
if ([trust-ok] of self); S3 G/ R5 s% |' z2 I7 s1 R# c2 `
;;根据i对j的信任度来决定是否与j进行交易[- X( n5 X) Y; v% d7 K; T
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself( l H; i; T$ d) I: p
: ^$ u/ l5 h" \9 W
[
1 W! f! P, V4 _7 I" X+ Q( A+ k8 T% F" b5 g3 D
do-trade
" L; O3 J/ _( \# {, T& v N3 l& v; f# {6 `, a
update-credibility-ijl
& u1 I8 E F" J1 _7 Q9 y
, K3 ~( c9 R4 f% G: Z! C6 H# wupdate-credibility-list
+ Z3 F2 Q$ _ T
' [1 F9 c& x |8 m- |+ O3 Q A. G% E' n7 T; B! L
update-global-reputation-list
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# ?% y# Y( o# D1 _! Upoll-class5 C# c( |3 }( i S& T
! I* W: D c7 N g' r/ T, f
get-color/ b Z7 n8 g6 [* |% c: ?
) k7 F' S% k, ^# U1 G! C4 p) C1 M
]]: D* d! q8 U; X1 p. Q1 w% x
6 C5 h/ @, @- Z: _7 `. j! W;;如果所得的信任度满足条件,则进行交易9 m* p V/ L9 d, w+ O0 K; w
0 O! X% e3 V' [[( Q% ~4 c2 q# ~! q6 D- i
0 Y2 o% F* `. P! @$ i: f4 {! V- jrt random 360
% L, w7 X/ E/ f
6 P$ e# H6 v; L8 n* A9 ]; ~9 D* Sfd 1
: U; X6 J; E. f# H- a5 F- r
( j2 x6 v5 Z6 z, M4 d- |]3 T, T4 A. E1 r
- c( N: y' _! e& @) v% ^" B
end
3 {2 G* }' ?, N* Z/ v& v/ z6 D# x9 }; b' a. P' \
to do-trust
" P g5 v+ S$ d0 G/ k, `set trust-ok False
% Z+ T, x9 y, M' }
( d5 r4 i8 ]7 y ^
+ n7 s& [; m9 H) mlet max-trade-times 0
, k1 R9 K$ W; q& J1 |" \( Gforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 P- H4 ]8 }* |* u4 P& M e
let max-trade-money 0/ N, M0 ^6 H. n& [4 R8 U! L/ |
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]: y* E9 }6 d' b- O: l2 U% w
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 x: w/ y9 m8 s6 _6 ~
5 A- _4 e. e6 k2 S3 U
9 Y i1 S6 P1 L+ h% H. X3 J# pget-global-proportion X. m( M! X1 ?, P! I
let trust-value
- m( r2 Z$ z* J K/ z( Wlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
" N; F- D! ^) |) T" Zif(trust-value > trade-trust-value)
& _8 D2 H1 j! O2 h* b[set trust-ok true]
4 n4 w" X% b) J K2 L7 i" L- ]9 n6 Qend% v9 W1 @6 C/ h, H! e) U" v
! K( F5 f. `. E# _$ { ?/ ~8 n
to get-global-proportion0 l4 V, `% J7 m! J+ j7 Y
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
, G4 M$ H: O0 T: K9 X) k( {4 U[set global-proportion 0]
! p3 S: J8 E0 v% U3 m3 u Y- q+ G[let i 07 x( O# z2 t) @$ ~3 B! k0 r
let sum-money 0
, _ }" X0 n1 f" M9 Z& [4 b. o% }while[ i < people] i. w# ^% X, G
[5 P9 H) J3 K9 I9 j" p3 ?( b: J
if( length (item i3 {1 d$ L/ d# t! `
[trade-record-all] of customer) > 3 )% j0 f0 T- y% x! U
[# O$ @2 V, N# K+ n1 ^: }$ @) S) I
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))# c- d1 M" F* Z, ^
]2 { y2 t2 q1 b9 Q2 w5 i2 Z
]
$ A0 n0 Z1 t2 A& ^6 Flet j 08 q4 U$ W; g- h
let note 0
% D3 G6 a% B s/ V! @while[ j < people]
7 d) H8 h0 V4 n% X" u }3 w[
4 M) W! b, J9 G- O2 Fif( length (item i+ h7 m8 {, J1 b) p% l
[trade-record-all] of customer) > 3 )
Z) U0 e) I, K. H( V9 P5 K& D[
& O# Q' n' ]" _0 o5 c' Eifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)1 d4 f/ Q3 O9 \4 p
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
3 \7 [- _' V/ a2 r5 X* M# R[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]* H, H+ g& m, @/ J* U2 q( T: }
]; [( L. u# ]# D O$ _) p: n6 a0 W
]
; x! p# v& x. z& J1 e4 Nset global-proportion note; H5 X0 _/ a) O t# p( u2 y8 u e
]5 G; O8 M3 N3 O& l! y! a- h
end
$ e$ x) I7 d( Y4 O* k8 q: W* T3 ^4 E4 @# w! a8 o- E% H
to do-trade
9 s; H) x; J: Z+ O4 W/ V;;这个过程实际上是给双方作出评价的过程
9 s( [2 K, s" k4 qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价4 k ?" c0 V; I' z L- E
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价7 e- f, ~7 S* \/ Y$ u- n
set trade-record-current lput(timer) trade-record-current3 \: K9 e9 U# t% u& r. Z
;;评价时间
4 [7 }- ]1 s/ S% N n5 E a; task myself [
, F4 ] o( b# Aupdate-local-reputation* y/ [! o+ j; M8 l0 A: {* T
set trade-record-current lput([local-reputation] of myself) trade-record-current
/ R% i* F" Z9 e0 a4 h]
! }& r, k) o% G) r" B' \- g3 W" zset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
; P+ P* W* ^: V+ F/ W;;将此次交易的记录加入到trade-record-one中1 O3 W: H, J7 B, H2 K& P, y
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! d4 Z9 F' {4 }" G6 W
let note (item 2 trade-record-current )
3 i8 T6 H. U9 E" j+ _0 lset trade-record-current- h, a9 e/ h" \" C
(replace-item 2 trade-record-current (item 3 trade-record-current))
0 i) m9 X( p5 l4 T1 l! g8 [# Uset trade-record-current6 P* G/ ^" c- E, |; `6 w
(replace-item 3 trade-record-current note)
9 I( O: p/ y) l+ R, X( D& j' Q; p F ~2 A$ g6 N R9 f# C
) b( @- L0 L% y& j1 Z* s) Vask customer [0 S! D8 y# m# B/ \, |7 M9 x
update-local-reputation9 X K3 D6 d6 ]
set trade-record-current1 t& J b. Q; u5 k
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) " l$ i; E- ]; v* u" f1 b, f, g0 y
]/ F9 e# ^/ S0 K
& f' F% ?3 d& j$ b# _! i( X9 q( ]
3 l. z! c5 ]- h0 \ N* S9 Pset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer6 |/ `- n: K' d$ V+ }2 O$ ~1 p
% g9 o0 j' W9 c: B
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 l2 T' Q* [" K! H E- {;;将此次交易的记录加入到customer的trade-record-all中# B0 Y- x2 u' f+ x% ~$ `+ B) c
end
/ q# `7 z1 e& C7 @; E7 h
7 t t( t. S2 j$ y! [# E& nto update-local-reputation
2 W7 d3 R( s+ s3 E/ y+ K8 Wset [trade-record-one-len] of myself length [trade-record-one] of myself
1 C. m; j. H0 ?$ w4 e
# l* b/ F% |* `5 q& v+ ?2 U" g" Y" N4 X' L p( r
;;if [trade-record-one-len] of myself > 3 + S/ q: R. p5 l4 E* @8 G9 r l; ?5 _" u
update-neighbor-total
& ^+ [8 r4 ~5 L8 @! D;;更新邻居节点的数目,在此进行+ ^, @0 c4 E; B/ Q
let i 3
2 t; d3 t5 ^: @" v& z8 U- llet sum-time 0
( a! |3 ]! s# T Vwhile[i < [trade-record-one-len] of myself]2 M/ i" L0 ^2 J" x7 g
[
: D3 T# A2 L, K* N6 Y- N4 H7 Gset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )( ^6 J( d; [& c8 L7 G& @0 F
set i) @7 y7 V, F ~% J+ }. R9 b
( i + 1)! |( k6 h: \: R
]0 x. V5 O9 A& v6 n. V& p. y4 d
let j 3
3 m* n, m Y- w3 ylet sum-money 0( v, u$ D5 @- l- F. t5 d: z
while[j < [trade-record-one-len] of myself]
% q$ `- V2 d$ {' F; ]0 J, q[8 Z% |& V8 ^6 n: w& v
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)
) O$ X1 A+ w5 c, x* Aset j
, h- m4 e- v/ I/ d2 q( j + 1)1 O& H" ]- D1 s2 w3 \' k2 |
]
: G( s$ T; H! s) rlet k 3# i1 O. m- z- s! X
let power 0) Z! V. u. K* ~. a
let local 0
$ e6 z A$ T1 G6 cwhile [k <[trade-record-one-len] of myself]: M% G" ?% J( i1 L
[) H6 ~* I8 j1 C0 Z$ {3 L
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)
0 f% R! [; b/ E4 V# x, B# m) Iset k (k + 1)
) |7 d) v: {* h]' C/ h7 G( A3 }
set [local-reputation] of myself (local)8 y; F2 _8 H1 t* v/ A+ z) @3 a, p
end! w1 H D! ^, D: ^0 j" l' K
5 F! _( G+ W, u! I
to update-neighbor-total
( Y$ {9 J; _+ ~9 V- }% ~
8 G: ]5 V6 y# ^4 K) F- Qif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 s0 _/ Y$ G5 S; T0 F! I! @
% I* B8 H& [0 A2 k0 V- u8 T, I! _ n/ l k( d" A; Y
end
& u# _- P6 d! X4 x# n8 v7 ?0 X; x( j5 ?: `" ^$ k
to update-credibility-ijl 2 d& ~2 s1 w, a' B
* W! X# K" |7 ^5 l. N6 H+ |
;;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。
$ \( F% T! U* |, i+ qlet l 0
* ^; u, R7 _% W" N1 F: E( {while[ l < people ]- N/ N& D$ a/ ~ A ~
;;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
7 M2 M* M. p7 {. p; X% M H1 |[
9 P! A! {3 s `5 Q% h. v) Glet trade-record-one-j-l-len length item l ([trade-record-all] of customer); J' l4 o$ v1 P" a( I
if (trade-record-one-j-l-len > 3)
5 d, v8 Y6 G1 ^1 A u[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; X0 f7 _6 p* A) T; b8 x1 c
let i 3
2 R$ Y5 `( @2 Ulet sum-time 0: v8 H, i) O* n- W+ Z
while[i < trade-record-one-len]+ R# W( I6 k: f
[: ~/ S) Z* k9 H+ _$ v A+ e
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ ]0 i0 k8 f# P) |6 iset i
4 k( ]6 g* `$ A: ^& Z( i + 1)
" Q( d9 T, x/ x]9 a+ b( K* }7 L* V: h7 n
let credibility-i-j-l 0
# T$ n0 `/ x# V, A! ]) c;;i评价(j对jl的评价)6 Q0 E5 ?2 e7 d6 k2 d* f/ w L
let j 3: Z; z5 G6 J1 w ~6 a
let k 4. O' _2 k2 Y2 _ B9 u
while[j < trade-record-one-len]0 X4 U C( [6 t' {. \
[
" y, R7 d& k5 {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( H. \2 d: {! q
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)
& M# H4 q; h5 G) l8 z5 aset j
4 C$ \" ^. d- {8 h4 t5 c/ b( j + 1)0 K+ V# U6 T% \8 m
]
# p: ?/ Y: g2 ~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 ))
j' s3 N- C; v1 A/ Y5 M
" X# d) [& t5 |, t3 r% T& x# ?
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
& q) h$ {2 G, R4 u, C% {% _4 @;;及时更新i对l的评价质量的评价
3 f, O& F$ T0 ~4 pset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' g) `" {3 M. K4 g4 n# t fset l (l + 1)7 m9 w: I8 O5 V# l
]
) {% x5 Q0 A W0 `" L3 aend9 }6 H1 w( u4 M: R
+ W5 G# W6 X9 R3 ^
to update-credibility-list
. d- g' R' f0 ~9 v( g) k4 jlet i 02 c' v7 \9 v! ~, t; R j
while[i < people]
% x0 m, }8 @6 K[
3 W" p( Q, W+ Dlet j 0
/ T/ n- {9 I) Mlet note 0- [6 t4 q, G) u a e, K
let k 0) v% U+ Y# U1 a( p
;;计作出过评价的邻居节点的数目
3 ~9 f1 n- d3 W) C, _8 y0 I l- {while[j < people]/ H5 V0 A( H- C; P# a D- u
[* G! I7 ]& S7 }/ A* {6 {3 g6 Z
if (item j( [credibility] of turtle (i + 1)) != -1)( h8 k& a2 |+ F0 D% I$ k
;;判断是否给本turtle的评价质量做出过评价的节点
1 H- O w1 o7 }[set note (note + item j ([credibility]of turtle (i + 1)))
, I" w' z* g2 W% z7 A0 p* B% G;;*(exp (-(people - 2)))/(people - 2))]
; ~2 ]# \) A) p6 M! C, Mset k (k + 1)
6 D" m5 Z$ \$ |6 z u7 I4 o]$ ]- x C2 [; ]) l! H# {0 a8 U
set j (j + 1)8 ~* _1 A- \( y" @
]
5 ~' J3 r% m5 w9 N: J( lset note (note *(exp (- (1 / k)))/ k)3 N8 ?7 p/ {- y$ y. n
set credibility-list (replace-item i credibility-list note)$ z9 \- i2 j) X I
set i (i + 1)
: H7 Q! S# t# T]& {7 }2 z7 c1 N6 g
end. E" [2 l, t5 y5 L
! F, G+ r7 m$ q. `8 [to update-global-reputation-list& L( y7 M$ |& {7 n
let j 0
* Q1 ?3 E1 @0 A' @: Xwhile[j < people]
: a/ c/ p x) u5 R1 j[
* \9 i; V* s1 E+ c6 N9 m% F/ T- jlet new 0
8 w' w' x( _0 j2 o;;暂存新的一个全局声誉 u; F8 ^/ S# c
let i 0
# L: ^& y# L$ x1 h' a% }5 Llet sum-money 0
1 P0 J, x* B, p4 Wlet credibility-money 0
+ k8 G. X% F7 ]while [i < people]& B; G2 s; [1 z: d" q/ Y
[- e3 I& j# f/ j, P, \3 F8 |7 X
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! O. K5 l, t& p4 Q+ ~# x
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 k. S+ E0 ?% p0 g. ^5 {# c- eset i (i + 1)1 q7 F0 Z, g$ }4 C# [2 d& R
]1 }: z* ?' _4 Y( s0 ~/ T6 M7 G. }
let k 0
) y/ S5 x; @3 [5 Mlet new1 0
- @# Y7 {4 u, G/ J8 Z* twhile [k < people]1 t# A8 `+ }( w4 z* O/ ]
[5 H, r& k( [$ \6 p/ m# T
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)
3 o. Z9 z+ k# v r% t# }set k (k + 1)2 r. j& J: }& B
], V* A9 I8 ~( a6 p* ] r
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 5 |9 k0 m7 l* c5 |) O' m/ `/ {9 J
set global-reputation-list (replace-item j global-reputation-list new)$ k6 C; [( g" L/ H8 i1 m
set j (j + 1)# V- v- U& l. |9 g) _' k
]1 ^, M0 y8 |. L
end! G1 w6 O; ~( B. `4 m0 C
1 h# I0 a) W% Q1 ^- Y& f1 m+ P5 Q( Z6 ~4 x& K; i# h# g
8 e u4 i2 R, V( [ @6 |8 xto get-color
- H3 }0 j6 F' }: R6 P# [" Q3 |, ~/ s- {. D. }
set color blue
+ A& S3 a0 f" o% A Uend
! i+ f% j. I& i9 e& {, I: D7 Q2 S$ t8 V6 T4 p; |+ F% {
to poll-class
" Z1 c$ m# b0 X4 d" T2 h7 Y% yend
9 \* b9 V$ r; ?& k; O6 G
) b% c! e: Q# \! V5 ]) Jto setup-plot1" o3 g: v/ w4 g& N& Z' o- k" G' F# ^
: T6 T( ]. T P# ^4 {2 y& t# {5 y, vset-current-plot "Trends-of-Local-reputation"' C+ Y; a0 Y+ f8 f. K# ?
( o# c" ^, A; L/ f3 K
set-plot-x-range 0 xmax
" `, V. L0 V# ?6 Z9 z
: ?& J7 i, |4 T/ {8 Z6 Oset-plot-y-range 0.0 ymax
0 E. z: ^4 z2 `* ^0 C3 Z+ Nend! ?3 p* J2 X9 L9 E- l* q
9 E; t8 R" q1 q6 C6 X. e1 k H
to setup-plot2
5 e- _7 C0 h# C4 ], W* u# t) `3 J$ L( ]$ T$ c3 g ` `
set-current-plot "Trends-of-global-reputation"
' K2 G/ m- B8 J; \, ?8 t9 r: Q C; L2 C d+ }3 f
set-plot-x-range 0 xmax8 ?8 g" z" ~3 }2 \+ b! s: c$ m& l
5 T6 u( o4 d9 x+ x- v6 X( K! gset-plot-y-range 0.0 ymax5 g3 J* z9 s+ K7 k
end* E) T1 }. J$ T
4 N) j3 f5 I* i" }. X' F3 }
to setup-plot3% e, {. D4 j/ U# Y
! C( i# h+ O! t
set-current-plot "Trends-of-credibility"
$ \/ }5 S* y9 \) }* d( l6 P7 x( S+ |' w6 }
set-plot-x-range 0 xmax
1 G5 G6 _7 w a0 U. F
$ n8 D# R/ S' A! hset-plot-y-range 0.0 ymax5 W' G9 g% o: h& l1 d3 t3 e) j3 H4 l0 L
end
0 L! N) \( d0 Z2 g; ]' a9 ^+ Q& n, X' t% ~/ z) ^: C, f, S; N, ?' h$ M
to do-plots1 l( e g- A* Z: I. ?
set-current-plot "Trends-of-Local-reputation") A4 x+ ?, a% O4 f. |$ I
set-current-plot-pen "Honest service"
. |" o5 |8 u% z( Fend
% H" P E) W( ?0 D% l; _+ R; q( A& x; Z% I+ P
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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