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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 H' ]' {- g1 J5 i5 R
globals[5 l3 f6 l4 ~- W4 Q, v
xmax
* w7 y4 r9 K: bymax Z* ]- s0 t3 G0 t, w
global-reputation-list
: ~/ n, V6 D+ I( c: A) J/ K% \
; r$ X' n2 J6 R, J;;每一个turtle的全局声誉都存在此LIST中
6 U( h% m; [1 q) p, m, u- i ]6 D/ Bcredibility-list
}, G+ }4 a) I$ [) j4 z5 e;;每一个turtle的评价可信度" V, a5 f6 t! }& f* Y$ K
honest-service
# J. D1 I, o+ f; p+ Z2 Cunhonest-service$ d! {' l) d9 ]* ~) W' n1 ~
oscillation
9 [ a+ g. n/ Z8 drand-dynamic; U; h- e) J# T# `
]
" K' j* f/ N1 M2 ]& d, X& A
/ F! m: Z$ I3 N d1 Tturtles-own[) D! ^# w+ e2 f
trade-record-all1 o% H9 I, G) z, V/ v
;;a list of lists,由trade-record-one组成, P# o2 C, u; _, {$ M, z
trade-record-one# V! K- v& T% ~
;;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 K5 X: B7 V: h3 I" y/ j" y0 L+ {7 N Y3 O/ z7 f
;;[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]]+ N9 c& {' ]- [3 k& ?* h& c
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], J+ P! Y; w% z& B- e5 M. e' A
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list8 _/ {8 z2 G, s
neighbor-total' }; j1 i3 h/ \6 G
;;记录该turtle的邻居节点的数目
2 Q, z4 [8 S y% t# K5 x \! A5 [trade-time( @# [2 ]' p1 J: O( ^3 h6 F
;;当前发生交易的turtle的交易时间
. f, F! e) U2 `& @- P6 nappraise-give
! c3 D: a+ g, V: x2 x;;当前发生交易时给出的评价& c/ n& J4 Z; ^1 s% q# t& r" }
appraise-receive
* J# P4 ?$ b1 t# t, O;;当前发生交易时收到的评价 @( O' C# W; @4 K0 ]
appraise-time' u! N' q- }# J' W
;;当前发生交易时的评价时间; p% j, l L3 T8 ?" {* }
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
/ k% B( Q' C) G3 X- `# n5 J5 `trade-times-total) ]* t9 J* p6 h! ]8 f6 a
;;与当前turtle的交易总次数
! U* S8 m% r0 {' d, P5 Wtrade-money-total; n4 c. k- e% V h5 K( `
;;与当前turtle的交易总金额
( _! J/ t# W; G2 ^) zlocal-reputation' K9 M! B) D& X$ e
global-reputation
$ d- E2 s& E2 Ecredibility
+ P' |2 O/ K/ p3 F: n# F;;评价可信度,每次交易后都需要更新" n- Y0 V. m s" K
credibility-all
: [3 B2 t( D& H% o2 l3 o;;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
$ i' s3 O" A z$ X! Z" _/ r2 c. ~" W) K, z" z: q
;;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& i |* c# Y; F
credibility-one! V. J1 [0 M8 j% E2 E0 z
;;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
q* v, K, {9 E1 ^* M% hglobal-proportion% b) d( b1 k' U
customer
; v2 S: j9 N- ^: Xcustomer-no
+ e8 i1 s, @7 c8 P! v( {trust-ok
$ n; ~: i5 e4 t N! {, }; u; h1 Ytrade-record-one-len;;trade-record-one的长度7 _! Q |5 c( ?7 A# Y: W
]
9 _, N: @- W' T. u* ^7 J* M" G/ W# v6 L5 G2 o" b! L
;;setup procedure
$ n" H0 C4 i, i% T% x# b }
3 C% y2 Z/ B+ w( S3 V* ?# z2 q. ato setup& h' l) l0 h1 {6 m$ a
& [3 \4 J. R8 {; O- A5 Cca
% l6 O9 S4 x7 y1 v6 f: o+ x @$ W+ x p% m3 ?! b
initialize-settings- d5 w2 y9 U" F
, L5 T/ ]# x+ |" h, P. Y. P2 x N
crt people [setup-turtles]9 t) ?) W. }9 H" R
% W5 P' X2 `) i7 x: A' Hreset-timer' E) g5 r, h f; F( n
1 O1 `! v3 Q/ n m4 H/ L8 Opoll-class
1 g; ?5 G. \( I' e
9 h4 a2 Z, Q S7 w# T$ Jsetup-plots
& n; t) K, Y2 ~
9 Q$ n c8 m4 odo-plots
" O# k' B/ J" D4 t2 U9 bend
$ x% }2 [1 X" z7 M; U1 E
! J i, ?. D; N3 W: S( o2 x8 zto initialize-settings
5 A) M, R* T S
- u/ Z+ Z9 z( n( K' wset global-reputation-list []
& s7 x1 S( B& s6 b! j/ u7 f
' N4 [3 ~, N# f$ b% y; yset credibility-list n-values people [0.5]
* u; O. q+ S/ v! {) d' j$ a" f u0 O# m/ J- s/ V4 Z
set honest-service 0
1 a/ J4 n. R+ f! e# Q5 R) V/ X; h% }' I" B9 x7 o$ z
set unhonest-service 08 z7 m2 v/ u% @5 y
( N( K$ G1 a# g1 K6 mset oscillation 0' r6 E4 {5 d5 W9 C+ H4 C" f$ d) r
7 R i5 t' X, k# P" Z
set rand-dynamic 0
( X7 G1 H& f8 Jend
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to setup-turtles
4 E% [3 M7 k8 {! `( X( `3 x3 Sset shape "person"
3 B( E- b5 P# x+ G0 ~setxy random-xcor random-ycor
( h ^* F4 c$ T8 |( lset trade-record-one []
+ m: [5 |& Y5 N$ O5 T( L; L( F) r) g2 z$ O4 A4 {
set trade-record-all n-values people [(list (? + 1) 0 0)] " f8 j* F' q1 T5 w
# _: L+ Q* p( d" X' |0 H# Gset trade-record-current []9 S3 B: ] ?! S c4 e' @6 _
set credibility-receive []9 @, f% s. Z% Z. _
set local-reputation 0.50 h6 X# E- d+ a. E# O& {8 ~* @
set neighbor-total 0
. }- g% u' j) j o$ A1 lset trade-times-total 0
/ ^0 z2 U. M8 xset trade-money-total 0$ `5 q2 G7 w6 U- m1 X% ?% z$ u8 u
set customer nobody R8 A' f! {. i* y
set credibility-all n-values people [creat-credibility]8 s0 |8 c6 ~. C1 C- G! D7 N K
set credibility n-values people [-1]
* ?2 X; d1 X1 M+ [* Rget-color( K( @. d7 Z. H6 t1 U' ~
! F V% ?1 \9 E" J9 Kend2 `) |$ f$ y3 O+ h5 h. F6 U( G
1 \3 d. j7 [8 kto-report creat-credibility2 j1 [. k" p: \. q! X: T
report n-values people [0.5]/ x, N+ w0 _ c6 y2 V6 E
end9 L# d6 A4 h0 @8 m% s
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to setup-plots
# }: U" K4 e2 X2 a
- Z0 k- g o Gset xmax 30
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) y# d; I- s4 U% H& \set ymax 1.00 g5 M& a4 e4 v/ u. z
' W9 n7 l, V. Z& B; T4 q3 |4 ~& Wclear-all-plots- O+ ?- f8 \* Q; b' e( S
7 G; y( x# S' _. `9 S/ u" Wsetup-plot1' G) p6 o3 {6 b, ]' S+ ~. i
" l8 N. ?: q9 D7 R( K
setup-plot2
+ z2 k' f" {) E
7 C& U) b/ }8 w9 _7 T7 g1 g4 t% Isetup-plot3: P) N8 b ^: q* s
end }; C, [" [8 Q8 u
! J+ M: L; G3 |;;run time procedures S& u. }8 v* k' c H
( K4 ^5 n3 |; C- K! E* C7 c& d( Uto go
# A' Q3 s3 ]1 [7 i) P4 G: Y1 B
% y, Y9 F; r! g0 Pask turtles [do-business]
! G# G5 \* i, Q% [( i3 jend
# }1 t- r- D# A% B7 M8 }2 o% u3 ]0 O' {3 d; ?* j7 v& S
to do-business : y, K+ A% m8 Y1 F& \% L) {
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! K9 o- y, G4 q* h s' e$ z# c# i$ trt random 360
/ Q5 {6 [" M1 i/ i0 `; Z' M+ Y1 o& r! L& J
fd 13 V3 N( q# |; I. p( R) L: O
; c8 Q0 ]8 z3 H4 j$ Kifelse(other turtles-here != nobody)[& D0 y+ @' r& N9 f# q: N% ]; Q3 e
8 t$ Q( T6 f" Y% ]" U
set customer one-of other turtles-here- J% u; q& g/ N4 P2 S6 O
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)+ x* U4 D) Y+ b9 e) O; E
[trade-record-all]of self
7 H8 T0 f8 Y- i6 o& e* i;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self b, H. k* E/ G/ b. `$ L
4 F: ]$ z: [# S% Z% c$ P) H
set [trade-record-one] of customer item (([who] of self) - 1)
0 [" r6 w2 ?/ b" S[trade-record-all]of customer
! C9 V5 V2 t W/ F+ K
9 i5 `" m+ n: y2 d4 Oset [trade-record-one-len] of self length [trade-record-one] of self
/ k; [ n# u, b/ P+ V8 C
, u7 T: s! A7 x" l7 P3 pset trade-record-current( list (timer) (random money-upper-limit))& w2 W8 M& S3 v x0 ~
7 ]6 a, A) J! {/ r4 ?, T7 Pask self [do-trust]
' z4 k5 B% y1 X' a( {: T7 J;;先求i对j的信任度
5 o0 u7 l( l- d5 D$ f8 X5 }
. R2 ^. X% D, U: m7 P' `if ([trust-ok] of self): E9 ]/ k2 L- }% ~$ X$ ]
;;根据i对j的信任度来决定是否与j进行交易[/ s' E2 c0 s* J$ f& L. ~7 Y
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself) j* ]7 }0 s. e6 R! }" v& ]; E! Q
9 ^: a: ]& U' _! F; T" f* A2 M- h[5 |" r+ u1 {4 D B8 I+ z2 ^; ]
, Y6 q# K. ]: `
do-trade
; f" ~$ X; z2 b) B: k& H( R9 r7 m% [7 K7 c
update-credibility-ijl
) z* H& |: W0 A" Y7 m- [4 R" O _
update-credibility-list
) G2 D. f$ k- A B) G5 U
# m- R* U1 @8 `; Y/ M" ~5 O1 o f0 u$ u$ }
update-global-reputation-list
) i0 l5 v6 L% D/ }" I3 X8 o1 g6 E r6 j9 A5 v' H$ K. Q, I6 c; F
poll-class. H/ ]# }6 l B
, F/ l, t1 G. j) m3 Cget-color
$ e5 X3 l5 o" a2 k' u& O( c2 o
3 I) ?1 y; U9 \! Z]]
2 x% `3 Z+ A. a4 M& \& b
3 ?% o/ Q3 P( \0 U/ S- z' l;;如果所得的信任度满足条件,则进行交易
+ K* @" r/ ^3 \) ^- G3 e3 ~: p* s5 J
$ w& j, i, D% {* a) Q5 |9 b[3 c: x0 t$ `6 J2 R J+ W0 N
5 K( G( e# Z3 v$ c$ }5 `
rt random 360; L9 K4 h* \& N/ e
& i: W# C! L& l3 |0 w5 X& _
fd 1
. Q y: c* d Y7 E. E0 C7 ?+ x- D) o. J: A; X$ k. {/ U0 u( A
]
0 m5 l" b1 t, M
3 \3 R9 z: c. u+ f o1 @end3 p) g( P( I j$ E7 o& {
- ` P% [9 C! [0 ~
to do-trust
. }: Q6 f+ m. U3 Q- {/ e, Jset trust-ok False- X3 k1 h8 }+ W; d* X( I- O
$ Y( W t n, {- t ?
. m! Y4 A r4 D e! llet max-trade-times 08 p2 G8 {0 N6 l+ S$ l3 ` E, f
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]' i9 E9 U& y8 Q8 T# d" b
let max-trade-money 0% d: z P& T! X/ S5 j3 b6 `0 H
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
& L' x- c' w( L3 ]) U9 plet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
5 z$ C8 q+ Q( l8 |; c
5 F8 e0 N0 E7 v: m/ s! u. y
8 @+ g+ m7 J1 t4 W) ]) R" e0 x9 [4 pget-global-proportion
1 F/ q$ ~0 f0 n% Z+ n7 N1 I$ Zlet trust-value
$ y9 B. T- c7 z% Y6 Mlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
! f" r. I; ?! i# l# |2 Jif(trust-value > trade-trust-value)2 @/ z- c+ L; W6 X1 g! S
[set trust-ok true]
4 R& J: a2 S- f- b7 Uend
- c8 t$ a, D9 E: M' g0 Q g2 [
( s8 H/ s# q8 i: \5 ~+ u; {to get-global-proportion
5 Y$ Y% _1 p4 R* X% {ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)5 ]5 \ b& v4 t8 H( z
[set global-proportion 0]
$ F4 @; g/ h+ v8 Q, N7 M3 u[let i 01 ]8 X6 K: O! ~8 y" k
let sum-money 0
/ v) C: A4 @& c1 C( F* o) u: Lwhile[ i < people]
: ]$ e; P5 Q) v( G/ R, w[
4 A3 H/ C" A \ \+ v1 M* fif( length (item i, L/ v/ c; O& b" X
[trade-record-all] of customer) > 3 )
" L9 t; G# R3 m4 P, m# F) |[
1 }; W8 Y0 R1 i. p, Oset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
; P) r ~& P# T+ W% C]
) p- U+ ?2 @: g; q3 M+ y7 }]" K: m! |6 Q7 ^3 [! u S& {
let j 0
1 H+ y7 g% N7 f) f- H/ d% Klet note 0
( C6 c8 i/ t: Y- l( s9 p! ~while[ j < people]# ~7 Q6 H# T% n6 s: v4 A. L( W
[
, m/ s, [, i) t4 L, a3 F: @if( length (item i
- ]' d# t5 G4 ]- d9 O[trade-record-all] of customer) > 3 ) C9 j5 ?' t/ X( B. ]* M2 K" M' B
[
! J3 D: \) s; r0 Z. m; V9 Jifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
( N+ u2 L! [$ @$ P' R6 i( y; y+ v[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]& ?# k4 S0 ?* J3 |! Z
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
1 u" a. q1 ^" s/ n4 Z M& j0 K' R]
7 p. Z9 ]+ a' C( O6 R]8 {" ~( n6 f \- V$ M
set global-proportion note) Q# ^% d7 ^; s
]
( S& U2 c% {$ }& `. I8 G# i3 }6 Aend% U) M) \6 K2 V* o/ x0 e
* V! e* n7 B% V5 T0 C
to do-trade
0 c. e' r C8 f1 P;;这个过程实际上是给双方作出评价的过程
/ d# \! e# W. r8 Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
! N) y& j% x' e* f( q: lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价) F: e1 K" I/ T
set trade-record-current lput(timer) trade-record-current
+ I( Y4 j: C, g;;评价时间
" Y' t7 R1 p9 v8 V; M0 l% ]( W7 Kask myself [) T) n* Y$ S8 _' a6 Y
update-local-reputation
: q4 v* W3 J3 b1 ^8 P( yset trade-record-current lput([local-reputation] of myself) trade-record-current" n+ x$ e) d. U) R, P, S' i/ O/ Q
]
+ W7 e& m* G' n/ gset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself/ D5 M9 u8 a+ Q2 @5 U8 U. Y8 e
;;将此次交易的记录加入到trade-record-one中
+ I7 R- U, H1 t0 Wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
) d8 k5 W, {( j9 k K4 x/ tlet note (item 2 trade-record-current )) ^2 Y( Q: M& x9 Q7 l9 X$ m# x
set trade-record-current
' j* e W- v( l6 |, n(replace-item 2 trade-record-current (item 3 trade-record-current))
- J% g# _+ G) x4 fset trade-record-current- h( h. Q! g$ l8 [; B
(replace-item 3 trade-record-current note)
/ o8 y4 F% U* @0 M" x' c
7 n. X/ Y0 ]6 q' K3 d* J* A5 u5 {" f: f$ t9 T
ask customer [
0 O& x, e! O* s7 dupdate-local-reputation7 R( r! t2 ^/ h
set trade-record-current- D% o$ h+ Q7 R" E! P( N$ e
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
1 s2 |# K' i4 b]
) E2 Q7 [4 Z* {+ L0 U
) n `( }% f7 W7 @# k' k
2 {, k5 \( H4 @; i6 w0 N0 b6 Cset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 p: g5 _, u/ m# m. i
0 n/ F0 \, p. Q7 c0 Z6 mset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))0 B, O7 B" v) A- J* k0 k- Y$ ~
;;将此次交易的记录加入到customer的trade-record-all中4 R( |7 I F; d0 z
end! F" M+ Z5 {& u- N8 Q) Z
( j% o0 ] I2 i( R
to update-local-reputation! z3 C7 S# c) s6 g. I! s6 `9 A
set [trade-record-one-len] of myself length [trade-record-one] of myself6 I' Z. r3 x9 d: H8 f/ o
; B5 z( O9 L; ~' o7 ^& r/ G7 {" ~* b" @" t* l0 d% O; O' A
;;if [trade-record-one-len] of myself > 3 7 u8 Y6 C. c6 {$ x
update-neighbor-total( f$ ^. s" e$ A Q
;;更新邻居节点的数目,在此进行
Z5 v" k" l0 V2 _let i 3. f5 }, F! d& a( ]8 l- m
let sum-time 0
3 M. v! h B5 c9 i: vwhile[i < [trade-record-one-len] of myself]& ~/ i/ f8 l: m+ R8 n" t5 C2 V1 t
[1 U1 A6 u7 z) v/ m c
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )* [5 T8 t. i" N( {) S
set i! B7 T5 u$ z( m9 y% `; b
( i + 1)9 f; n& L$ {0 P. T" R `; x: [
]
- ]8 W- [+ ?7 }( i0 x+ Y k: Olet j 31 y0 _9 d; ]& j7 i
let sum-money 0- V* {' T9 a7 l; S, e1 H- w
while[j < [trade-record-one-len] of myself]: a" _) X* A/ u5 ?/ Z5 `9 q/ q
[+ W3 @4 Z' y9 }0 d. K: E
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)
- i# N' k0 o. \6 j. pset j
/ x5 a. X P% C# @% p9 M* a( j + 1)
) A& ?5 {& ?2 u5 K( K G]
( _% q/ |% ]5 W' i2 T# Vlet k 3
; j. O8 J0 j) I, W/ H% v. n: |) Olet power 0- g8 p3 W2 V( e9 _
let local 0
: A& M! B5 ~+ F/ [' O7 \while [k <[trade-record-one-len] of myself]4 F$ ? d3 d2 T: v1 s; g
[& V/ u. }; S' L$ g [
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) % j I5 M0 t3 i# _7 t
set k (k + 1)
6 H9 p$ W: N/ }9 e- A]& t. s# O5 q* g% y/ N% K* M
set [local-reputation] of myself (local)( _* Y. F# q) d
end
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to update-neighbor-total; v8 \$ V& |+ s
4 T* S, `( K$ s, E+ V u. u$ W
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
4 E) @: Y& V A
$ v9 S# L c+ @- y2 i5 A& w& H3 @2 P0 B& B* ~" { C% G8 q
end- n% w* Q# `! P- |7 V7 t
4 S' A. z$ S5 I! J2 x, B+ |to update-credibility-ijl ) W6 g6 h1 @2 A
$ t+ b( M. \" U) b;;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。9 x9 i3 M" B# s4 E
let l 02 f; U6 i* y Y/ T0 ^, T
while[ l < people ]
; I# d; k9 c2 t- p, 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
0 Z% m/ c# V! l l! b( R8 M1 B[! {4 R; I( L9 H& B1 u$ C
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)/ }: B0 j% e, x7 T. r2 l1 B2 _: a
if (trade-record-one-j-l-len > 3)5 U9 l$ A% F8 u2 G6 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* F3 O# \% b' V
let i 39 I& d; y+ {" z( T
let sum-time 0
' Z- E& K% {8 r+ K' e' {8 n3 u) iwhile[i < trade-record-one-len]
' z. R+ Y: |5 B C n" g; K[
" @/ g6 v' T. B6 f8 V% G; Iset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )6 p. K$ v0 D) J5 `9 m
set i2 R+ W g# F$ O3 [+ C g* _: h2 @
( i + 1)
7 z* _; m+ i$ a& } N7 K* y]
/ G4 u" D1 y _6 T0 s; W* Zlet credibility-i-j-l 04 S# X# ?$ f4 _
;;i评价(j对jl的评价)
# o! |/ V0 l: M7 q5 hlet j 3
3 g4 d/ i ^ }3 ilet k 4
. v2 ]7 {2 Y9 \" n$ D$ Q; e5 J/ {while[j < trade-record-one-len]6 V/ c( ? r, s+ K& e5 C( H1 G
[
2 S" Q: ]9 X4 m n9 E9 S1 C0 y jwhile [((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$ {: s3 d0 q9 Qset 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)3 _& H3 s. z! G8 D# M
set j
/ a7 u# G6 g" t" R* k- m( j + 1)
( D' r" U2 f& m9 g) i5 m! M& f( z]
$ F( N: k u) z% M0 vset [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 ))4 W. m8 k; v& l3 ~
! b2 {/ {! [$ Z5 q. b/ Z# D* A G8 K/ p/ w% s6 S, h
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ ]$ K6 W! n$ F. T( C: _3 B% S;;及时更新i对l的评价质量的评价
2 e6 Q2 A1 X: W6 m+ b1 [( b; }- Cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 l# m6 k. O+ y6 u) d
set l (l + 1)& Z; v& o$ e% B, Q, E9 C3 L- [
]9 G9 C' y# u E. J g5 z, v. s0 R
end" M3 M: \: l! \9 J1 M
$ O' C8 b: `' x* p% o3 _; J4 P* o
to update-credibility-list
* u0 H0 P# J1 @6 G9 z# llet i 0
: |3 k6 D8 v! c! k9 }. A: ~while[i < people]
4 b6 \3 k) }) H; K7 U# c1 x- R/ ?! f[
3 B' Q, G- U! o9 I& a. Mlet j 0
( E* `9 }8 D8 \' S! flet note 0
% T1 ^" R* \; i- y* U0 b" @" i! ilet k 0; Z/ {+ w; U2 y5 @5 w" B9 H
;;计作出过评价的邻居节点的数目
8 f& Q6 x( G8 @+ G/ q! bwhile[j < people]
- [9 q! X& m4 K1 ~" y/ M2 W8 l4 O[3 T2 e/ k3 h& O9 D# {. }
if (item j( [credibility] of turtle (i + 1)) != -1); `) Z* J6 Y7 p2 h& s. f: j1 H
;;判断是否给本turtle的评价质量做出过评价的节点" {0 S" G: x! o' [6 j' T. |' q
[set note (note + item j ([credibility]of turtle (i + 1)))
3 \* E9 w, N" j: l9 P6 z8 p1 Z9 Y;;*(exp (-(people - 2)))/(people - 2))]
# a4 w) i6 d+ p% v/ eset k (k + 1)
# F( r6 V5 J% k% t1 N* r* L]
3 b* }2 J4 Z; @set j (j + 1)) O& m" s/ D+ W1 Q" y4 {% L/ g
]
) ?/ H3 M1 e$ @" e# ]* h) z5 Y# tset note (note *(exp (- (1 / k)))/ k)
% m: p! G: j7 D1 j( {set credibility-list (replace-item i credibility-list note)9 C# X1 |# D! D+ `' Q, Y
set i (i + 1)
9 N4 l/ @0 n7 I! |]: e& v2 x3 K g% f$ C& ~2 i- \
end& ], r2 b5 I3 k& U' a
1 r0 L4 Q/ {$ c( M# P R; h8 Wto update-global-reputation-list2 g) W, o, `& |9 o* F E( F5 O* H
let j 0
/ R7 s- k% Q" y* s8 e/ Y$ iwhile[j < people]
# o! V; n% i9 c, t! _0 Y[
$ s8 E& t$ d+ V& ~3 u7 ulet new 0+ J- I5 ]2 }, Y6 _
;;暂存新的一个全局声誉' M1 S4 D2 m7 Z" g# u
let i 0
* S& R# H( n* S( |let sum-money 0
% \ G0 a& A% |( o1 T; R" rlet credibility-money 0
8 Q9 Z8 D/ r! y C; m4 P% G$ Z% M8 }% Swhile [i < people]+ _' m8 d) X0 p8 W& r9 w8 C
[
. P' H' i2 x5 Mset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))7 i, h, g$ n8 k: C) d
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- Q; v+ ]7 u' O; i
set i (i + 1)
- P0 d7 o& [5 ?. I& K) Y# A- Y]
g( i0 v l R6 \; Y7 E- g- `let k 09 M; v5 Q6 n9 U$ a' c2 [- S1 k
let new1 0
+ _7 T9 M5 u& C: M, j2 o" L4 Swhile [k < people]
q7 D1 O9 H9 L9 m5 _4 I9 l[& [. N* Q9 ]& Y0 t5 v/ q( }
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)
5 X# b1 Y1 H9 jset k (k + 1)
# ^8 Q9 Q X% \ E/ }]+ ~9 g. t- B1 N- o6 u
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) O8 U( W* X9 u$ r0 _
set global-reputation-list (replace-item j global-reputation-list new)
6 |$ r) ^' K1 D# u; y/ ~6 t- z2 c. Sset j (j + 1)
7 b$ n# p* y7 u( Z4 ^% i]
. _$ F7 s ?, \; i$ L# Yend0 L9 Q* @7 i' H" \' \% U
- O$ ?& }- L- c1 x. t
0 I8 n3 ?; z- n% d1 z! p. F8 B4 I/ \/ i3 A/ j
to get-color0 C+ L p0 `" k2 T
+ N) `9 ^/ H( E0 S3 w5 j$ }/ ?set color blue1 g9 w! U2 ?+ w3 m0 G/ Q
end( y3 G9 u+ \- K5 @ }; o
5 C1 {& n b( V- d' a/ H, h
to poll-class, I, N( w- r+ @' U
end
m4 u6 A9 u3 L1 M9 q3 ~' O1 I3 n4 t! U4 Y
to setup-plot1
& I: h/ F( y) o$ |' `, R- \/ B" K, J* Z
set-current-plot "Trends-of-Local-reputation"9 c! D) n( x8 y' G
' K$ d8 A; W2 |8 i/ N3 n+ t% r
set-plot-x-range 0 xmax- X- L; ?& ~. V6 T5 R5 A" k. @
5 h! m Y5 m: l' J, t
set-plot-y-range 0.0 ymax
' M) h# b8 I0 z( J& Send
3 ~0 K3 R& g6 D* K2 G3 h& l$ y! e# [6 P
to setup-plot2
# C0 K- o$ E+ ?. d5 A( R! _9 Y' ^1 I5 U& e$ H/ m9 X8 }2 L- y
set-current-plot "Trends-of-global-reputation"; K; x! k4 V9 j7 o
& ]& |6 |1 P( C: L- Y3 o
set-plot-x-range 0 xmax2 Q: b! }" N& t3 @
# C5 g1 ]# U: I
set-plot-y-range 0.0 ymax) U3 F- N7 B* A) J! d" l
end
- r* h# \' M0 K" K' B" ^: ~
g- h, D+ y# ?0 Y8 z& Tto setup-plot3
1 p: ?1 y+ Y3 n6 ?7 ~, d ^9 g# Y+ B4 z& f+ ]5 u. d
set-current-plot "Trends-of-credibility"$ f& X3 n# b2 W% e
7 h( C4 s: \% Y+ u3 f, l
set-plot-x-range 0 xmax" M& ~, O, Q# F# w5 w6 j8 G# m
5 T2 ]- I) h( |+ ~) q" d& U5 l$ sset-plot-y-range 0.0 ymax
$ d2 |5 i0 N# V4 B; A( Qend
6 ]' z6 _9 J+ E% j" M0 V5 {0 w
, K0 I' R: Z6 Y% \/ W& d; Dto do-plots
- K2 T# ~3 v9 G6 m4 y* ?1 ]set-current-plot "Trends-of-Local-reputation" p9 c' M6 x" K& b w" p$ g) G4 W
set-current-plot-pen "Honest service"
" y4 S7 V% J7 dend2 [6 @$ N9 h% m6 O; o
1 Z! Q0 s( t7 l; X[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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