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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
S& L3 C7 S; G0 a# e3 z. ] ?% pglobals[
! ^( b; L3 l4 k: Mxmax
( l8 f* D; w- Z% vymax; o! Q! t; W& i% q% e2 M- N% C
global-reputation-list, |2 p' s+ E- I! q, [& v9 V! S
5 f! T* t( _! \+ j$ }& j8 \4 r& i! c;;每一个turtle的全局声誉都存在此LIST中 h$ N e2 h$ S% ]. r- K' ?; y
credibility-list1 F4 m& T4 G6 B# A
;;每一个turtle的评价可信度2 f$ e) i b: m, v, s3 O6 A S3 k
honest-service7 V) }* ~8 W2 o) F
unhonest-service( v! l( C2 i8 w$ F
oscillation
$ a: s: O' ?9 l+ prand-dynamic
4 `! C1 @+ m' W) z5 Q( G! Y]; j8 g) \0 ?' B c# F# ?* v- Y/ q& a; ^
8 Z- A- B. x+ @$ k) Aturtles-own[
( K. C: x. @, q$ g; I7 rtrade-record-all& Y/ V* C: R3 \" P; b
;;a list of lists,由trade-record-one组成
' @* V" i4 X m; o& R1 _3 Mtrade-record-one
2 j" d% Y# [" V1 M8 n6 [;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
5 I3 M% ]" h: y& ~6 L* n
; f4 m2 @: y, }2 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]]0 e9 J4 w6 f& G. D) E7 r
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]
. W; h- D- P1 k$ T2 _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, @1 p6 M1 f1 q3 m
neighbor-total
3 N8 B6 k9 ^# Z2 M;;记录该turtle的邻居节点的数目' W. h& d: {) A t; u' l1 y2 x
trade-time
. d% k/ a5 G2 g' r' i t- R$ H s;;当前发生交易的turtle的交易时间
$ S! y) ^8 b% q8 Dappraise-give
' q! d( ^$ A4 x8 e# [;;当前发生交易时给出的评价
: B! e% P* Y4 G* |1 P: ~appraise-receive4 K# O, V$ X5 g' a% E- b+ T5 m
;;当前发生交易时收到的评价
3 o" G' i8 }% K! v p+ g9 l* dappraise-time
; ] `+ j- L1 l. }' ?1 E3 z;;当前发生交易时的评价时间5 i# w- b6 E F
local-reputation-now;;此次交易后相对于对方turtle的局部声誉5 [- x& f% B* p
trade-times-total7 x" b3 F/ i- _" s! s0 e
;;与当前turtle的交易总次数
6 a7 ^7 I, y( [" rtrade-money-total
, C) m' U2 F5 u( D( ? u! J;;与当前turtle的交易总金额2 e. f0 b$ p+ w7 l, B& w: e
local-reputation5 `, E5 G* l0 q+ a# j
global-reputation
# l; J Y8 p. X) U+ K. X- L# ~/ R1 H8 C ]& Qcredibility
9 `- E; W4 J I& Z; @;;评价可信度,每次交易后都需要更新- |9 q) G' }! x) Y$ G
credibility-all7 \* J3 {9 V- q' [6 Y( D! R2 _
;;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 j8 t, s. P
' k! G- }9 d/ 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( R5 }5 g1 H7 B2 n+ x
credibility-one+ G Q( p% w" i1 p/ ~" k. 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) v; B: K0 T/ R, E9 x
global-proportion
# K6 _4 t$ N8 D0 d |0 Tcustomer
! v. i3 w' R1 R7 Ccustomer-no
6 B2 y3 U0 J6 R [' T+ q+ |, w, @; dtrust-ok7 F( x' w( |* R1 D& U" `/ B8 ?$ ?- M
trade-record-one-len;;trade-record-one的长度0 g; J* q9 {4 K* e
]2 g% x+ a( x6 L
6 Y3 R" X& b: ^;;setup procedure
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to setup
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) o9 O. K" c2 K9 v9 B8 v ica
5 |1 O" l! L) U7 k0 L' I2 X& I- g/ w, `( a+ [
initialize-settings
+ V" n9 r. ^. }, k
, d* `7 c# d, O$ O( pcrt people [setup-turtles]( t7 z5 {9 F. t$ Q5 O% |
, Q6 O, `" r- t! o
reset-timer
/ j7 G5 {, P1 ~3 J1 k2 {3 R4 N/ g/ z1 b5 W' A# L* _+ y5 [
poll-class
4 v) |4 J/ [ R' a/ e% b8 A& U: k' {; E% X* l# h
setup-plots) o9 p$ e2 ]; R% G, A9 J4 Z8 d9 N
6 I" B( f( G" W3 ~
do-plots
9 D# k! U6 N$ Hend
" N4 ?0 G; }" h6 ?# O! e2 G% s0 Y4 ?* I3 e
to initialize-settings
8 W4 f8 R8 s( `9 l6 Y8 C) p7 ]2 T, _+ u) b5 g$ [+ N3 g* x4 D+ S8 s
set global-reputation-list []
+ ?$ C7 L( k+ h% M
5 O; f# |9 d7 V: _6 ?" Kset credibility-list n-values people [0.5]
7 b* u2 g2 J3 _9 T, I( a6 \% V5 ]; k5 A, O" C- n S) Z/ P2 h4 _% G2 W
set honest-service 0
7 K4 Z' @$ @# F+ c% E7 Z
7 @' v a/ [8 e* C. p5 p: x% }set unhonest-service 0; B) V& W% ]/ I% C' j" P1 g& ]0 U* Q
7 Z# V, E( g; x" `; }+ @+ ]% \set oscillation 0" u' u; c) ^( \% `$ @9 u4 o( @5 X
1 `" u$ q$ W( S# ]) B$ wset rand-dynamic 0
^4 i3 ?" k+ b fend* v& [# y4 t9 U1 Z: i4 V
+ Z z1 R2 L$ m+ ?) P
to setup-turtles
9 P+ O! r1 X2 ]: O0 m* Pset shape "person"
( e0 w3 p1 F2 _4 [2 e* \& g& hsetxy random-xcor random-ycor
# e2 J) C4 Z& c. i- d% C" N% V% {1 X: w aset trade-record-one []' Q7 i" I8 F; i( O
* C O5 ]$ p; r# J, ~, }- Dset trade-record-all n-values people [(list (? + 1) 0 0)] ( g$ D, c6 |+ v A
$ a/ \/ R7 n1 V ^set trade-record-current []
: A5 p( }% N9 N, _1 k" Vset credibility-receive []7 ^' F: F3 q+ J, B8 F9 _- U0 @7 I+ [
set local-reputation 0.5$ f9 u2 B% ]# R: l2 H2 a
set neighbor-total 0
* B( ]% s' {& {7 `& F1 G R! Xset trade-times-total 0
9 x k* w! C: b& i8 o2 }set trade-money-total 0
* ]1 F' v4 U+ b$ m" y) Hset customer nobody
8 R1 n1 O# `" N) S; L5 ?* R: D) \0 qset credibility-all n-values people [creat-credibility]; O8 b: Q: v& v8 J6 a
set credibility n-values people [-1]% Z$ X" l2 Z- T9 g+ l7 G/ [3 A
get-color" [4 i; V3 j" r% ]; T# X2 |$ {
( J a. F: o, j' v4 R
end4 j" D( Y6 }1 y0 C8 m" K" ^' b
% \, D) g4 `9 Hto-report creat-credibility
. Y4 p/ J8 d+ h! R \1 h' f+ treport n-values people [0.5]
0 }( `, g0 ?7 D9 c3 x! |0 ]4 ?2 Z9 pend* v% y- n7 }% z! Z
7 s# o e0 e& p- bto setup-plots0 x2 u# k7 N& G" P0 f8 Y1 F
- e# @" S7 X* N, e$ |! C! [set xmax 307 Y; g( G; x4 g; S
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set ymax 1.0
. y" v" w1 `& X s! m# e, p: u: |" [
clear-all-plots5 o4 x @" v6 h" G
0 b1 b' X! X0 R
setup-plot1
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( n; d* D+ l5 ?5 y+ p$ F2 g/ Zsetup-plot2
: [% V3 `( z2 N& K0 p" Q2 G, U9 K, F1 u
setup-plot3
' O- g; ~' i$ J# \end' s- f- A, o+ {6 h$ v9 e+ t
" _' s# @" b3 U
;;run time procedures
$ m$ R9 ^, M7 X' E& {
9 l+ m) {# q9 D' j2 J6 wto go6 \. U1 Y5 x% ^/ Y4 O* t: R: K* S
9 [* T$ J4 W& D1 q, Kask turtles [do-business]
& F2 k/ u, y% Lend
% {9 I% A- S5 z
, f3 y& H" P {) \! Mto do-business
, ?3 o4 F) r0 ^
( ?1 V5 `5 [2 [4 \! g$ f" f- e9 k# h0 n- t7 J: k
rt random 360# A2 {: H. s8 t0 d* R9 V3 U' `
7 i" h5 R3 j& A: v* L, W# O) H0 Hfd 1' G4 L, ^' c, X$ a
+ i4 I) J' n. H/ o; M* n) p3 Zifelse(other turtles-here != nobody)[
) q U Y8 x6 T5 Q5 q5 {( x
$ f4 Y% |( {) @set customer one-of other turtles-here) d7 ?* H; n# g- o; v9 |
1 K! `& }/ [& e! Y;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1); i" ^7 W, y$ u5 ^. c' N* o
[trade-record-all]of self. J" i7 C; b1 D/ S
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
2 n3 j5 Z7 g5 G( ^, K4 p0 G; j$ j
% R. I4 `2 l0 t# bset [trade-record-one] of customer item (([who] of self) - 1)
# k2 ~4 [8 @/ o# P1 y% F[trade-record-all]of customer
+ a" S/ |" E- N! F8 c$ {3 o' s+ m
set [trade-record-one-len] of self length [trade-record-one] of self
2 q- Z3 S, A, l1 |' ~: R
9 P0 U" @8 m, H" Nset trade-record-current( list (timer) (random money-upper-limit))# U6 L. t4 p: v/ G5 R! m
' L k( M8 ~- pask self [do-trust]! ]7 X: j$ k4 d' g
;;先求i对j的信任度
: R" a! A: a" R2 m
5 Q2 l4 B( v/ b" j! ^& Z/ E/ N! dif ([trust-ok] of self)
9 O! d8 v1 K) H& i6 o2 N;;根据i对j的信任度来决定是否与j进行交易[6 Q! J" f0 P+ H3 U2 P9 y3 Z2 T0 t O
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself: P8 p9 b4 k& l2 T
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( X, _& q) E. i, S @
do-trade
0 E$ u0 F1 t* n/ x/ _
" O1 m; s. v$ x! ~" supdate-credibility-ijl
% A# U. d& t) @
, n' O8 \/ p/ t [update-credibility-list
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5 }9 w4 M" G5 W+ T/ X1 l& ]
update-global-reputation-list6 [. A, h) z- g% ^- R4 N( y( X, [/ t
4 c9 J0 q, a9 M* Opoll-class8 Y* e* P$ ~6 ]0 m9 i
( Y' }) X& e: R- x9 r& u' D
get-color
( U3 B( j0 n6 s" g- `! C
/ M4 O$ \# G! X$ r]]) ?/ h: _, y3 p! }
, W/ X+ v# M0 R+ F
;;如果所得的信任度满足条件,则进行交易% r, B5 b$ A% E0 r7 S
- j$ [9 {; ~/ N0 G' S2 Y5 |
[
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" r7 f1 P2 W4 i$ V: `8 _, mrt random 360
$ T% X1 q( i3 C1 I. p" I. \6 O* T2 x* o% n. m5 v
fd 1
2 d* }; L+ V' a/ X; V* k2 r( X+ o( `5 n( q6 d* k2 W
]0 ~& g/ F. U/ @1 P, _% ]
) ]$ P' t( N7 \2 U2 [3 Hend5 b7 H! R8 s& w9 j# r; |! a
+ y0 j1 e$ _: L, Nto do-trust ; a. k$ N* p9 `' z
set trust-ok False' m" f* H, Y+ h N5 M, Y8 I# |
& k' T% ?8 \# z! Y# ^% s+ j+ @/ }
- H" g& d3 @: y: \7 ]' ylet max-trade-times 0
~) Q! U0 B" V$ W7 p( cforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]9 X& ]3 @: v5 ^4 A: q
let max-trade-money 0" u8 X+ m% I C* l: w5 I
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]" T0 L8 x" ]7 @& t7 H9 Y0 [
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
- a4 c6 f/ S' p$ r6 u6 M& Y9 v# B
' {3 ?. v% \4 I5 L4 s+ K. I1 W
5 \$ I3 _8 d: n/ Q' z* A. Yget-global-proportion- H t- x+ r6 I+ n
let trust-value! T5 v% b; l @
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) C# b. K. t$ w
if(trust-value > trade-trust-value)7 R8 f6 j" g$ H7 o* @3 Z0 e) s3 G
[set trust-ok true]! e7 t Q s4 \1 J' D8 H
end1 m) U/ q1 X( t/ S
. p; |7 B J; M; o
to get-global-proportion* c& M3 |. v2 m/ [, {
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
8 y6 ]% y9 I8 S9 T% v$ i! t- O3 b[set global-proportion 0]
7 k. R# f! a# |# I* J$ G% `) ?: f+ H[let i 0
! c, H! W* \0 P% ~* H( Q D. ilet sum-money 0
5 F' m. E0 i1 D Y a4 owhile[ i < people]5 A3 E6 `$ ^+ J6 J& e4 A+ I
[# k$ f# k1 `# W. o& C
if( length (item i% n% ?: n' m/ {# y
[trade-record-all] of customer) > 3 )
! t N3 W" W7 S' I( s' L[( N' @+ Z) k3 _! y. g
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))! g6 M' E6 n1 }' f \ x2 v& h+ V
]( ?& B) p, V/ {
]' [3 U, Q7 Y D& p& F, \1 T
let j 0. Y0 F/ A' Q. f2 T
let note 0
) n( z; L* D9 l7 lwhile[ j < people]
3 H0 \. J* d' @# n' X6 t[. @9 s# Y* A" F6 q% x0 S
if( length (item i8 d) m1 v9 G* m9 d! u q, B
[trade-record-all] of customer) > 3 )
$ h. j9 @. P: g: ]" I" w% O) E[
4 s1 {7 f# ^( g+ B3 C q% P* iifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
. O" ~- x/ [; V8 ^8 t5 Z! C[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]$ {. _9 }! M+ n: [# j( ~. F
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]' b5 a1 y0 S5 x) G% i
]
8 Y+ B( e: o( }4 W A]
; k) }% d0 }; z- o2 p& B1 k% ?set global-proportion note, c4 u' M g) j- r8 N& X$ k% Y! I
]% d; Z. Y1 R& E7 B5 L: S& U
end
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to do-trade+ Q# t9 G4 \; x! J4 w0 L
;;这个过程实际上是给双方作出评价的过程- N# O& @; @* ]+ ^
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
6 R5 `2 I+ G4 [, P$ X' Cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
; r- c9 n* I6 r8 O# B# A. l+ Xset trade-record-current lput(timer) trade-record-current
' L8 Y7 B% s6 y* \5 L, g;;评价时间0 Y6 ]& U( D k
ask myself [ X: O2 h: X6 D9 ^! y
update-local-reputation
# \* E$ r% [- J; Tset trade-record-current lput([local-reputation] of myself) trade-record-current
. q; p2 h5 z. q! V/ C9 Y]
8 V7 O3 ^7 u i6 [set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself2 N- G( h3 Z6 n, L! v
;;将此次交易的记录加入到trade-record-one中" [5 C" x: G: z# Q& m
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
# L; P2 M" `' w1 ilet note (item 2 trade-record-current )! f9 f3 S' D0 z+ \5 p
set trade-record-current
( u/ s6 {. W4 t/ I" S(replace-item 2 trade-record-current (item 3 trade-record-current))0 Q6 y4 X6 U- E2 [3 C
set trade-record-current
& r7 V6 J( \: z0 W0 f8 C; n(replace-item 3 trade-record-current note)
4 i) F P$ f/ o7 ?! ~$ {9 Z
: ]( G: V+ }7 Z0 [, `( D) Q2 u+ k9 ]# v
ask customer [
% P) ^) F3 J7 Wupdate-local-reputation
/ i+ }+ s3 a; |set trade-record-current7 y* x/ v" Q# V& ~! U
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
4 W0 Q* ]( {2 a6 [& i( [/ s]* \4 V r* h. m$ a
a6 p% M/ t: c
7 n8 K" U. f+ l! \5 m. i. R
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer, b6 F7 q* d- B' ?( g; x+ c& U
, ?/ ]) r, l8 e' u" ~; c
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
5 j9 z! `: j+ Y! J+ J2 c;;将此次交易的记录加入到customer的trade-record-all中6 [. t% x6 J) T, k( C( k
end8 i- P8 ?' p' W0 U+ S, N
; l9 G u, R, K) Z. \; q
to update-local-reputation
1 m) p% f( x9 [) w+ qset [trade-record-one-len] of myself length [trade-record-one] of myself
' j* A8 D: T8 z# o% s# [, Y {, S6 n9 p, x
, t' a f Q* L;;if [trade-record-one-len] of myself > 3 1 B; Z: E- C4 ^3 v. O9 x( k% y% l
update-neighbor-total$ M. _! U+ n1 _
;;更新邻居节点的数目,在此进行
8 A$ O' t9 w! A$ [- \+ y& `7 [( hlet i 3# Y% U( t" T; O4 S
let sum-time 0$ q& r( e; w$ e O/ y4 \# p
while[i < [trade-record-one-len] of myself]9 E- K6 W9 ~. d& l
[
3 o8 k+ ~) G0 j9 }. d2 _set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 S1 }/ F( a: t sset i2 O8 {, t3 R% R7 t9 x M8 H$ e. M( m
( i + 1)
" Z+ P" V8 x" x O! x]( m! @; I5 e% T" k( K. [
let j 30 N* R- g* o4 a! \
let sum-money 0
+ L/ y- w2 Q; x# e5 }while[j < [trade-record-one-len] of myself]
7 G! {, g: A# m9 t( o" D) c[
% H5 P% w0 s$ w& _+ [0 {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)
; n" E* K5 e% X) p Nset j6 s$ q# c% X: B" ?
( j + 1)
3 Z- S" _8 C; {0 H! {- e& p]$ u# O5 b3 ~3 M. D7 h
let k 3% j) o- K+ m) G2 P1 A3 p
let power 0& _2 l+ H: Y, S7 q6 T9 t) z. x1 ^
let local 0 @8 B- {8 I3 X; s# q8 a
while [k <[trade-record-one-len] of myself]; M+ z: h: T6 p! w* l% H- v& a5 h
[
/ U0 j' b& E* d9 X' mset 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 s+ G) d4 {3 a0 g3 \) fset k (k + 1)
7 [2 ]7 v. b9 \$ T* K& Z4 M]
" n9 i* \2 o |! m* D# M' ?set [local-reputation] of myself (local)7 l, T3 ^% _- C
end x1 x8 u! W$ `$ F, ]/ e! m; p+ o! X
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to update-neighbor-total
: E8 V2 I5 \$ _( f. d8 S( ]# m% _/ _6 C$ e) F7 d% \
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. A( c2 \3 n8 K8 S$ X
: w4 p. O/ h& v$ k8 S3 s
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end% w+ h; B9 y; F% ?, G" Z7 [
6 n9 v0 E- M. f) {/ F ?
to update-credibility-ijl
' w! E) Y# t: c0 W# n6 y1 ^7 f
z& {' I# J7 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。9 G( |' s \, L9 L
let l 0
* h, z) N! a* q) K- \" D0 v+ cwhile[ l < people ]
! a4 I0 w0 z$ z6 h1 u7 N9 I/ o7 T7 N$ x;;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* X) L2 J% d& ]9 ^2 b& w
[' U) D9 S& T3 W$ J5 ^
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
* Q6 ^% X: d& L4 v* Sif (trade-record-one-j-l-len > 3)
: [& X+ r" g* c! `! K[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
0 V0 m# \0 T! _, clet i 3
6 J$ ~. t- y( E! w5 h; g a" [8 D( Ylet sum-time 0
7 n2 Z: ]7 v* zwhile[i < trade-record-one-len]
5 {% _# X: X$ [& t: B[
% F( B. [3 _8 o0 u0 Qset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )% M) M8 s- R0 i# N' B" x; m) _
set i/ O, |) J! r7 T
( i + 1)
2 [: R' J3 j1 e! h7 N]
- k, d* s7 Z5 I I/ C. a3 wlet credibility-i-j-l 0
7 K; w L( V6 z4 }) v1 F" g;;i评价(j对jl的评价)2 [. S0 Q' {, k& |* |* [
let j 3' \0 Z( {' v, Z
let k 43 t# u* O! H$ A; q
while[j < trade-record-one-len]
9 l. b u$ Y+ `/ D1 s. G/ _[
: V4 t& y z$ [+ _2 h9 B1 i# K- ^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
7 ^# w f2 | u: t% Q$ X3 k5 D+ z; pset 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)
+ K2 g o- X" ~6 E! C& w# Yset j
8 U" D3 J! S! _* t( j + 1)+ y2 Q% c- h( d
]3 k2 R+ ` ~ N- P/ N% g0 z" ]% _
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 ))+ H) {( P) b. ^& q, S! ~
i7 D8 i7 @8 {6 ?( f* x/ i; e8 K% T& v# Y q
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
0 K0 U ?8 d' g$ [;;及时更新i对l的评价质量的评价. C h8 B8 g( a i5 J
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]5 s' O( w& E! m5 B$ D* y
set l (l + 1)
( \) I$ _2 I/ y2 U7 c: [; X]
* t; ~. X6 e+ r. Tend H" U& K. P+ A# p9 W P ?" E
, Q1 j7 @$ j7 e# Y
to update-credibility-list
8 D) g; j6 n. Jlet i 0, G5 b; d- `+ b" N' i" C
while[i < people]5 z) _$ L2 F5 t2 ?! A/ \: ?
[' i7 o0 q. G. A& e1 k1 c
let j 0/ h. @3 T9 u* c5 Y7 ^
let note 0: O1 X; ] ?9 ]( ~/ V1 _8 g, h K
let k 0
% m. x- J, _- T;;计作出过评价的邻居节点的数目2 V. W2 ~- l& s; ~; l
while[j < people]2 r/ D9 F5 F: f) C4 `1 a
[3 e4 ~3 u& ?4 z$ P8 H
if (item j( [credibility] of turtle (i + 1)) != -1)
1 Y L A& {" E; @, F/ P+ ]/ R;;判断是否给本turtle的评价质量做出过评价的节点
' ^3 {: }4 G: R% z/ g4 k/ f* ][set note (note + item j ([credibility]of turtle (i + 1)))8 R# m4 Z! R1 G( H
;;*(exp (-(people - 2)))/(people - 2))]+ }2 a. {9 T: b& J% t
set k (k + 1)
& m7 D1 x4 h X' }, K- v]- S- j9 W: }0 ^7 ^7 V* W' v E. E! r
set j (j + 1)
1 S+ ^2 H! @3 Z1 E n x. I]
' T- m1 W) X% r( y) pset note (note *(exp (- (1 / k)))/ k)
% A7 }7 s# J/ p6 bset credibility-list (replace-item i credibility-list note)1 f$ `/ ]2 N5 p+ y6 T
set i (i + 1). Y. f0 Q- f" y2 o$ e) \
]. E# _) u, d' o( Z' t* R
end G$ x) z; O* z$ f
0 k7 L9 A) y8 e5 ^( \) F$ o" N; gto update-global-reputation-list
2 ~; [7 T+ k" a% W. alet j 0
3 t4 q# N5 z. \. Ywhile[j < people]' N! O2 B/ C% l8 Z
[
. u5 Y% e2 Y5 M) w* nlet new 0
+ r6 T0 j. t- s% J1 A;;暂存新的一个全局声誉3 W6 v4 H; p8 m
let i 0+ m& J# J2 ~0 z" a/ \, o2 w! e
let sum-money 05 L% I. M# F) Q
let credibility-money 0
8 e _% D+ w% f( |8 nwhile [i < people]) R: i6 |. s# n9 x
[
' v8 M1 W6 u) k8 ~9 Eset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))3 z% M- y. A" c
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))0 \' q' z6 A/ d$ V: J1 b, m
set i (i + 1), [1 r3 f# c2 F7 N
]3 `2 W" O+ ^. {) X
let k 0
- R9 @ h+ K. h M1 N8 r+ elet new1 0
% M% V, l2 O( v' o% W, ]9 lwhile [k < people]- ^7 T1 y, j9 i' |
[, l# M3 a5 [( C4 Q/ I- M
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)
. E- b' p& j3 x4 Nset k (k + 1)6 X; x& C5 f/ y. ]
], f4 R: Q e' L, X0 B
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
- h0 ~) P5 m. Y- b6 z* Eset global-reputation-list (replace-item j global-reputation-list new)
g) E0 G# q7 nset j (j + 1)9 j- V/ c# w0 M2 T3 h! }
]
+ h3 o+ P: q9 K9 @$ r4 oend4 @- x9 d( s0 @; {7 ^7 d( i
+ D% }( ^9 g8 x! t3 u. z7 _) v9 L, _3 T, H
. n2 z' e$ W* r& y
to get-color
- r% L, w. y- C! A! |3 W
& v6 X8 s( r3 k. yset color blue
1 D6 l4 F' f) W4 jend
# F: g* t6 a! G% @3 Q& s3 E4 ^7 O' J+ n7 V _; l' ^ e. ]
to poll-class
5 m. h+ p* j* _2 b6 Y! |. _end; x* k2 y$ l# B U/ O" K3 d+ J( y
9 f! h) j" Y# U* p. E( A! Eto setup-plot17 M# { Q* M9 m( Y
4 R# X7 U& o7 W2 Q9 k, B6 R$ _set-current-plot "Trends-of-Local-reputation"0 H# X6 ~# q# \
# x& Y0 ^" k" A: z
set-plot-x-range 0 xmax
3 c7 u, I( \; V5 \ `" d
3 a) c2 D; q, h# I+ d, Kset-plot-y-range 0.0 ymax
. {: {' L: J+ `6 [7 mend
T% b& n2 A4 C8 }) I% m
6 i$ V+ l' M1 g" t9 wto setup-plot2" w2 `3 \1 n' I' W9 W
/ J9 z0 |; n6 ^set-current-plot "Trends-of-global-reputation"
1 U2 B- f: L* Q3 j- D. \& i6 N( e2 C$ E, {* U" }
set-plot-x-range 0 xmax( w1 ?. a7 @* w- P0 d
7 a2 o0 v' H: g- f+ m+ z
set-plot-y-range 0.0 ymax
2 m) p( a+ A: k# d3 a Y$ Jend2 D P% a+ H. J* @1 t' Q' s/ ]8 I
" O* x5 V( q {5 t5 e+ K
to setup-plot3
6 u; y; y2 {( d! G. X6 D/ N6 M: U5 E4 S: R4 ^. E
set-current-plot "Trends-of-credibility"# `) ]$ Z% b0 Y! [
q/ U: ~& C! s' z& S
set-plot-x-range 0 xmax" Y& _- W- N' B2 k* r
: o% E9 n, P! w/ A" v! p Fset-plot-y-range 0.0 ymax$ O" R: H" m( i3 |. U3 M" w
end+ p4 B+ z# v r( V z" e2 W* L
% n |) ~- L# S. lto do-plots
$ r1 A1 e6 l9 v9 t, i* I8 eset-current-plot "Trends-of-Local-reputation"2 K0 U, b/ k* J( w, A$ I' w- S+ Y9 h2 B
set-current-plot-pen "Honest service"
' b$ B3 @' ~( t7 z8 z+ x% ~ T/ Z3 @end
' G/ t( D) N* D# P5 ]( e W
+ n8 b$ [' {/ f% x& K: v[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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