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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. ]1 w8 W) @+ h
globals[
A1 r, ?4 V4 |$ U3 Y" R; zxmax* q# d. R: z- }7 i# q5 F/ W) ^
ymax& O& [7 h. Q! ^* e- Z' ^) T
global-reputation-list
. L' T9 P7 a, |2 ? Z. m
" l% ^; R+ d/ y6 I' ~;;每一个turtle的全局声誉都存在此LIST中
* g% J3 l* @% F" @2 vcredibility-list
/ w8 q: u+ I9 b( ]# p" {+ O;;每一个turtle的评价可信度
& q+ _; s& W2 \: mhonest-service4 W5 S& q! h1 V' B/ ~
unhonest-service N) S7 f6 |5 G* [+ g
oscillation
" I4 a9 e/ d6 E3 rrand-dynamic
) P0 v3 A+ `" s j# f0 []
! K5 N. o- b1 R5 C8 s8 g' k7 l
; ~) P$ n$ Y3 D8 v0 C+ Sturtles-own[
7 I# E' w2 D n* Ctrade-record-all2 e/ k- J) O7 r8 T# V! P
;;a list of lists,由trade-record-one组成
( ]/ p# N0 C/ Y* y' w$ i% @trade-record-one
9 r* h! X( V7 Q) U! m2 \;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录1 I' [6 o e. b3 e0 q
3 L/ K) V$ i" {: Y; Y$ _;;[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]]. x" P* {2 M( |- S
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]! n; R. H9 v& G, X! Q$ u$ T- B) ~& g
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
) W3 M, l6 A; O1 e0 V$ Q9 j0 c! Pneighbor-total. z3 O: o" p, a' T8 y, g
;;记录该turtle的邻居节点的数目
6 b: v9 @3 z3 R. p! ktrade-time% Q+ N1 \/ x( m
;;当前发生交易的turtle的交易时间
6 [/ E# @% R D" E4 Mappraise-give
1 E! u0 X( R1 i% K* b3 X/ R;;当前发生交易时给出的评价1 K0 `5 Q0 m7 j
appraise-receive5 s1 Q) P1 A; ^1 e4 f
;;当前发生交易时收到的评价
$ [4 C$ `* u- F" n* J0 A1 Qappraise-time% Y9 P( w) S$ W
;;当前发生交易时的评价时间
3 ~# j0 ^' y$ H6 K" g: j' Flocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
. }8 D2 Z. D& r$ T% J$ _3 N/ Ftrade-times-total& |# V! R% R1 p- l
;;与当前turtle的交易总次数
5 V2 f' \0 A) U4 I' p; {trade-money-total
, d, V! W0 O3 E;;与当前turtle的交易总金额
3 e H8 o6 e% U( O) wlocal-reputation
[- d8 z: b* }4 Vglobal-reputation3 E& o4 z5 c# F8 s$ c3 t
credibility6 S' c: }% ~7 f6 p. u
;;评价可信度,每次交易后都需要更新' {$ \2 Y% B: X L
credibility-all
6 q, d1 D' l% ];;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
7 c1 ]- X. G4 p' h2 J2 ]
' J8 S9 _ w* `( e4 N3 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0.53 x& X& C& D& r! C
credibility-one2 j% ~6 k9 }* R3 S
;;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
z- W" _3 T4 K& f, O- S: nglobal-proportion {' E; _! q/ K
customer0 ^6 N3 s' @# w3 T E" z
customer-no7 S" |* u8 }- b: K/ Q
trust-ok" n/ m" M5 k9 c* l: S+ u
trade-record-one-len;;trade-record-one的长度
0 r0 y* s4 b! s7 v7 _) }; v]
( J* X6 k3 _* ]3 Q& f' Y1 U4 y8 l6 K( T
;;setup procedure
: K( M8 S. }; S8 u- H( [: B4 c7 F: {2 u( k# m
to setup
7 V+ r/ b, l$ I. E: j8 q0 J5 t; g2 X; D! D1 S5 A
ca) O% _7 I* Y3 `& w' d/ @' w6 \
+ `. ~& U W9 C7 H, uinitialize-settings$ ~2 L0 K1 U( V" W1 ?; N
: _* |/ ~. }# f/ Zcrt people [setup-turtles]; [5 F5 t1 p4 a* Z5 o# `. N6 M
4 q b7 R' {9 ^5 A1 G+ T
reset-timer
$ E# q- d; n( Z' A& K% L% z+ |0 z% P( ?
, O" k8 Q+ h) `& L" E+ w3 xpoll-class
- W, G5 c7 S( M" B" Y
- @! _* h5 {# B! g" ~setup-plots
/ j- y$ q2 l8 k- e6 J# V
8 i0 A5 ]% D" V. I# ~5 Z0 U% hdo-plots+ W7 |+ E, |6 K. S
end" f# l, d0 k: D0 o x$ U2 l
6 J2 V. w: Z* ^! V. Eto initialize-settings& A! c% c+ `, r% P- i9 y& c
- W8 k- r9 w% k% r7 W: k( o
set global-reputation-list []
! i7 p6 Y$ G) _( E9 F
4 z- U6 I$ Y& q! J. ]- zset credibility-list n-values people [0.5]2 @2 N+ }* I8 U% s
! Y8 _$ ?! e! d1 k" q7 x# e5 Zset honest-service 0
, j+ k* Q0 W3 m$ H/ ]
d# O& W' m, D; q/ @set unhonest-service 0, E. N" x) v5 i+ h
" \3 P7 X9 d6 m, x( }, fset oscillation 0! e" v4 D6 ]2 Y9 c0 x' |
! b3 i. ]3 A* F0 Z1 x# Q, p
set rand-dynamic 0
6 P" D# G: H( Q5 f% x4 v7 Oend
5 Y5 S( ^9 B) S, f/ @7 k9 ?: a
) N Y2 V) C1 [$ u! c* v1 f0 Fto setup-turtles ( l. ^; b( E l0 y- k
set shape "person"
. Y5 D# K+ P+ }2 D! F7 ]' z$ m3 [4 Y* i; qsetxy random-xcor random-ycor& ~5 ^9 i9 K1 L/ ^
set trade-record-one []
6 u# s' f: [2 {% R% J0 S/ C; M" B L6 s1 y$ l
set trade-record-all n-values people [(list (? + 1) 0 0)] ( I( @- a7 f2 w
; ?! v! ~0 }! ~8 |4 S
set trade-record-current []
& p# E6 Y3 w2 U6 P3 R( `6 kset credibility-receive []7 @: p/ U! R: Y1 S
set local-reputation 0.5
+ J% U: f' p5 s6 I0 {$ a& Sset neighbor-total 0% f j8 J, w" W
set trade-times-total 0
* A, d( f) c) u: k- |& f) T0 W ^& l6 gset trade-money-total 0
! I! V) D* e' P6 S& ^' _3 X2 v( D5 sset customer nobody6 n5 u* i3 Y! C$ p9 F9 |: x
set credibility-all n-values people [creat-credibility], o/ ^1 I) ~" t# I. K
set credibility n-values people [-1]# L- Z6 E$ Y h) x
get-color+ [( u4 \2 C7 @
7 |8 Z% q$ O4 w, v
end
2 }1 b( {. D' }7 N/ z) N- c" U5 d' g% _6 s$ y: \2 p, }: V
to-report creat-credibility
! M# W" @3 t' Q9 e8 X- P, j/ F% Z6 yreport n-values people [0.5]
" [( i/ \9 @ o/ {0 Y0 [- Qend
9 s" G4 N2 b$ Y. _4 y
6 e. s8 W2 Y5 q" z* ?to setup-plots
1 ]1 H! y' V3 F& P* t6 e
7 N1 J2 I3 b* H# ~set xmax 30
2 E, v0 T* ?5 p2 p& U1 K* C& p6 n0 h5 O. Y9 q
set ymax 1.0# G- A: s! v( X
; f j) I. q0 h8 c b( d
clear-all-plots
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setup-plot1
, ]* I1 A7 W. Q) [- t0 L" x
9 d1 `9 m6 Y$ E* K# tsetup-plot2! d; L g$ R4 ~0 w+ [; e2 Z7 [
2 X- t. k% H2 ]
setup-plot3( M4 l6 b; p. I4 h# Y$ k& U
end/ e) n* _( G E! k3 P; Y
6 H/ {$ T6 _# `9 a
;;run time procedures
" }' e- L2 A1 g8 D9 ~0 p
9 x6 d2 M7 g3 ]1 ?: z; c: e t- pto go/ M; K X: O7 O# i
7 [, ]; L c' U- f! ] }& L1 m8 Aask turtles [do-business]
% x6 m }4 H8 p# Hend) U) t3 k; \& D& }/ G+ A
+ i! [+ j4 ^: Z4 ]4 L( S
to do-business
% p0 h3 s5 t8 A+ f" j1 F$ L
$ v6 E7 C( O. w8 p# \+ E9 g. T: _5 ~9 u- B3 c* P' O* `
rt random 3601 Z( I ?3 u- B9 F: ^# \8 H
; G/ Q& m1 K: ]* c8 kfd 1
; ]: [) O4 k5 e8 j! v9 |2 s) z6 n& l+ ?- p' r* F: k
ifelse(other turtles-here != nobody)[
. c0 e8 s/ m8 z- ?4 r5 [* V9 l' M) F
) d% E/ b/ S1 o8 C E2 Bset customer one-of other turtles-here
& Y1 q+ O, l- d: q% }7 j
' a" J" C1 q* j' x3 e7 q2 s5 Y;; set [customer] of customer myself( j* q7 r2 B$ w! B
o8 f# ^0 g$ m* u9 Kset [trade-record-one] of self item (([who] of customer) - 1)+ [' Z! _( l8 b/ X# e0 e3 v
[trade-record-all]of self
# V) I4 Q; S; d/ h) E, L;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self0 c- ]4 Y( ?0 I2 W9 C0 G, n \
! M1 d% g7 i1 f. g
set [trade-record-one] of customer item (([who] of self) - 1)3 C5 p- H5 U4 I( m- r/ u
[trade-record-all]of customer
7 }6 h/ t5 z0 C. n% c, ^: S; f ]* z' Y- o7 p) ]! |$ t
set [trade-record-one-len] of self length [trade-record-one] of self0 J! \8 h/ B. l/ w
4 t' o) v5 P. ?) K" y$ C
set trade-record-current( list (timer) (random money-upper-limit))8 s: F# D: c6 m$ r! D+ L* ~- i
- e6 m# G/ _6 Z- i8 d0 J
ask self [do-trust]
) J3 ?7 `4 f& ] E: U. C;;先求i对j的信任度
* f3 I! M7 V) S5 |3 V! l/ H! c- T3 }2 P0 o0 G$ O
if ([trust-ok] of self)9 w) z* Z1 p, x; m6 ^. u
;;根据i对j的信任度来决定是否与j进行交易[$ g# _3 A: j- T4 L, p
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
; M* H5 x( C% S! h) l, ]' V7 y+ ]" I4 ]
[1 ^, s' c$ h" [% e, |) z+ s- x- b
4 U) v* b9 A5 |2 D
do-trade$ l8 ^5 J: }4 J K2 g
7 Z. E1 i$ x$ Y6 D0 ^) zupdate-credibility-ijl, c3 S+ g4 Q6 N+ n# ?& k
; e0 N- @+ e! z: |update-credibility-list
: v" u7 f% m* t) M9 a9 V2 v
" }& ]+ r0 c% _) {9 n
/ Y/ d2 I- S& b# Y8 m8 v. ~9 E% @; Bupdate-global-reputation-list
+ N+ q/ C5 G$ x/ | `; V, L' X, Q9 Z0 v
+ O( g6 j- B+ ^poll-class
% w/ e' s0 ]' V
' R8 s) f" n& Q1 i/ q: C _get-color
/ ~0 e5 e9 F% @( T5 X
% e- q* x3 ?" ?# ~! ~]]
; }7 d( z* W1 u3 ], g; H; f8 Z
8 L. k# N$ N" C0 E;;如果所得的信任度满足条件,则进行交易
* B1 P. @& x% C4 n, b) V9 o
3 Y4 M8 C- E' w6 u[4 M. b6 e' r6 f# i9 D4 A/ Y
1 o! ]" n: H2 j7 X/ rrt random 360
% U# L; G) i6 V; E
{6 @, b8 t, c( Efd 1
7 E5 r# j M( a4 P) f
2 A# t) C3 u# j4 L]
. h7 c1 e( X9 }
/ u8 o- v3 j/ j9 i dend) _) u/ e4 {0 X* m
9 Z+ q* t- C' \- oto do-trust
8 Q4 q' o4 e9 j. j+ B& ]set trust-ok False
9 n( d4 O; _2 r/ n9 }) e7 @6 y6 M; U# {
; a' j, E& m. Q' I
let max-trade-times 0
# d* ?, X7 I& L( M. t/ _8 Bforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]" m# V+ L: J9 s
let max-trade-money 00 y8 d$ S+ @% ~* r3 y$ _
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]7 h* r$ p4 b, C4 f
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)) s1 _' i& j/ d3 f T0 `( r
, l- a: ^; ?8 k* R2 \" ~8 i% w w; C+ w0 ^
get-global-proportion4 i9 q2 H8 \0 N/ x2 B* F& t
let trust-value
: }; k# K2 i5 o# D% ]" `+ D& ?3 Qlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
4 V( K4 O5 k6 p1 ~6 wif(trust-value > trade-trust-value)/ F/ m+ N7 m+ ~' w. C2 t' ~
[set trust-ok true]
; E3 a, _$ D# A+ T9 I& H5 E1 V0 i- Eend
8 E8 _, [0 y2 H4 e) O& E8 [& L9 K6 [7 D# f3 l+ p5 t: k
to get-global-proportion& c( P: }( x1 N. X7 p
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
, I" R8 [. i8 `( w3 e9 _[set global-proportion 0]
+ ]% Y8 A- H% I) O[let i 0
6 s& }: K9 V \1 Y' h& Ulet sum-money 08 H8 W4 M9 [" D" g
while[ i < people]
8 j! y9 o9 p! s[
3 z- M0 L; Y. }4 ]7 b, X1 @* b; nif( length (item i0 ?, s$ U& Y; v. o& s; ?6 G2 N
[trade-record-all] of customer) > 3 ). l0 T: z3 B! o# W9 M* u
[
Y- j1 t+ X& S/ _$ `& a" e' E% Uset sum-money (sum-money + item 2(item i [trade-record-all] of myself))5 \ z6 @) u! ^* t- b
]4 j+ a" a+ y" S& H+ [# i
]
* e) j! ~: [& T0 C* jlet j 04 ]2 v) u" u+ N B3 \
let note 0
: W* o; e( G# h3 e+ s+ qwhile[ j < people]) @; D" e' S. }
[
( o o; ~) r$ ]' Z! S sif( length (item i
* C$ o4 r* E+ M6 b7 F6 X0 H u[trade-record-all] of customer) > 3 )
2 C* ^9 N$ X, q7 e: Q[& Z) O# ~! c! D3 v
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
, u7 y/ o/ D3 T9 F[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]5 z8 e4 \6 D* l& ]$ [5 ]; C' |
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]! l8 x; i' e% a- C) \6 ]: e
]& @7 s# H5 l: s9 ^, L3 o3 [
]
$ N4 M R1 l9 R: tset global-proportion note
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end: N" S: p' d0 W# V5 R! ] {
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to do-trade
' I* @; W# y" |* m. P( h;;这个过程实际上是给双方作出评价的过程, ^ `( K5 A, M, `4 w6 a7 [( M
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
5 y, L6 A; A, z* n( qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
. |! l! c- ~$ P5 V8 }set trade-record-current lput(timer) trade-record-current0 ~& B% t' v+ y( j
;;评价时间) X1 V t% ?. {
ask myself [3 n7 x* h8 S X( V( p0 c
update-local-reputation+ X) Y( d% M* J9 v" @
set trade-record-current lput([local-reputation] of myself) trade-record-current
6 v, u, ^0 p, K/ m4 z# ?]: H$ X1 J$ U# {/ d% Y
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
7 |8 m, e: m: @9 S;;将此次交易的记录加入到trade-record-one中
' g# @; Y. t4 I/ uset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
3 H5 W' Q- r6 a; H4 j6 P, O! }+ _let note (item 2 trade-record-current )
3 O& L. [/ o, M* \5 g. yset trade-record-current: E! Q. F. t* X& K- W! a2 |
(replace-item 2 trade-record-current (item 3 trade-record-current))0 Q( [$ G( U7 a
set trade-record-current) v& t; g! s' n4 n3 B* [6 `
(replace-item 3 trade-record-current note)
L* b. t* l/ Y: |! E8 G; u/ j2 l4 r0 q! ?$ n
6 i8 l1 s( _' o/ ^) k/ i7 X" aask customer [
! k/ K- G* {( wupdate-local-reputation
' ]- B3 \* }% h4 P( n, k& R) Aset trade-record-current
2 R- Y! F- p) a: p q# Z(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
" i/ h; |& u1 y' r]9 M+ p' b+ H! z3 A7 g- h
' P% n* q1 R+ J0 M
0 v5 X# |! C0 O( F4 nset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 ?$ P8 b7 ^2 f( K- o- h% C% C [' g' x; {# X
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))7 {+ K0 a8 g- b% u7 g3 q! t% s4 Q
;;将此次交易的记录加入到customer的trade-record-all中
b' l1 y$ Z; ^, ~3 q! e6 Mend1 |9 V: ^ H" D5 @+ q+ d
- S% f$ K ?9 ]3 Oto update-local-reputation9 w" t N& q+ k4 G) H/ r+ x
set [trade-record-one-len] of myself length [trade-record-one] of myself( X" |- Q7 @% U5 e( u9 ^4 M" r
9 H+ i- d! T: R- }1 c9 c0 o
C( z, h$ J: _2 S) z% p o9 t9 o) F, G' v* X
;;if [trade-record-one-len] of myself > 3
0 {; f9 f! Y) s# l5 d) y: z5 Q; }update-neighbor-total* V$ c7 s4 Y5 u' Y" G+ {
;;更新邻居节点的数目,在此进行
& W. {. A! m5 G5 `. ^7 tlet i 3) A/ v+ |9 F8 I& y. m( x
let sum-time 0* w5 f. E# x9 R9 ^: l5 E
while[i < [trade-record-one-len] of myself]
F: v# A1 ] x6 G, A x' U[; Y& t7 f' c. w* ?
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), C* W7 Z! G. u4 [
set i* O3 g/ N5 V8 ?) d
( i + 1); _5 z: O) ~, f- r* x& T
]6 \. l( T& P/ Z6 {; a# Y
let j 3
5 y7 a) }% E9 y. g& o- \let sum-money 0- h: k* I0 g6 e" |2 g& Y# c. t6 ~
while[j < [trade-record-one-len] of myself]1 S! N! {( q4 J
[
! Z# L! d3 B+ ^. pset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)5 J, G. G1 E& q; i- n: c1 a& R
set j
) J3 i6 Q% |8 N8 U" | p6 J! W+ l! j( j + 1)/ }) G. w* \6 H. k
]
6 ]0 G) R$ A F) C) A$ D# d8 P Ulet k 3) N3 _8 X- D; ^5 [
let power 0( U! @" X. h- j; L$ t
let local 00 }# g3 G" |, j
while [k <[trade-record-one-len] of myself]; o4 {) j' O0 Z! k, d
[
0 n. f% {% m, w. Bset 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)
; a# o: u4 O, m7 ~set k (k + 1)
5 m& U0 S7 q( U]1 V6 {" D0 ]& b7 b8 X4 i
set [local-reputation] of myself (local)
; R; }: n) `' yend0 c: {$ g+ E# i. K% e
" o* k( u# Y- x2 i3 O; p2 g7 Jto update-neighbor-total
0 ^6 V' y, i( N/ r2 t8 y
3 y s( T+ Z; s9 m5 rif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]* Q' T0 O, m! m7 C
2 c4 D. z( |. E5 l" J2 V" y2 h3 p
, t: {- A6 F' K0 c) o+ F' z3 \
end
. `, X/ ^# ~% ]/ I4 R- G1 o+ A
7 y4 Q3 ~( e* b9 a4 ]to update-credibility-ijl 6 A" c% j/ y# w
; ~+ s3 Q B. j8 K7 c. E( c* i
;;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。0 m' u; w0 m5 U6 ~
let l 00 B7 `9 V0 Y9 m- \4 Z E) X
while[ l < people ]
3 g6 w' Z0 q" c4 I;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)% P' u# R- F3 h/ u
if (trade-record-one-j-l-len > 3)( W- g0 L9 i$ S7 _& I% l' b/ O
[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
, e7 G) S$ N! u. Q- b. klet i 3
: _ W# r/ i& ~" G# [# ^let sum-time 04 g8 y k9 @, z, c0 P5 s
while[i < trade-record-one-len]. D) T" G: e* B8 S& @) l: v# v
[
0 ^8 z5 p& v' H* ?' ^# Xset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
* i7 [0 W1 a L0 P- sset i1 J; I( Q' C0 ]( a5 j0 E) V
( i + 1)
# t. [7 x- P' R1 y5 S0 D]
: l. Y) A9 S$ T( ^1 mlet credibility-i-j-l 01 z4 u* M1 T# A
;;i评价(j对jl的评价)( l# R# M# L, U# V
let j 35 {% F2 h/ \4 x/ k- j
let k 4# S z6 T" I! @: I5 a
while[j < trade-record-one-len]: P% e% J1 t' G! U! q$ ?0 R4 f
[
. T- g5 U/ a, C# @$ [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; W( c+ T/ @& k, m% w4 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)
- Y2 A+ |& {9 a$ Q( V9 s8 V8 Xset j
9 C& P6 t5 q5 n" G& K0 V1 K( j + 1)3 Q2 [" j% ]7 K0 q$ t4 Z
]
! {7 \- X4 R W# }" b( V3 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 ))
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4 X' j# f& D; _9 @& h- y3 T+ V
+ }2 s. K+ i- P9 I* x9 slet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))6 F5 X: o; @5 w8 `, K, b) |! u- _
;;及时更新i对l的评价质量的评价
7 l: h( A7 m9 i( s1 x# qset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# ?& Y% D( P6 w& Cset l (l + 1)
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* p. o$ W. T: Y6 u4 J# d. ^, m2 dend% ]0 Q! @" f8 l& c3 j2 M, n
3 H( q8 ]; W3 X Q0 h: @+ O
to update-credibility-list" @! i8 B7 A! y4 T4 A+ p
let i 0
; T& ^, ?6 }/ h6 N6 Ewhile[i < people]
& T; D5 s! G. I7 V[' b" C3 H- G: O
let j 0
3 |8 j) I. N. z4 A* p/ Glet note 00 T7 ^+ a7 H! L0 w5 k: W2 Y0 v
let k 0
; {% l2 t& `6 C, O1 j;;计作出过评价的邻居节点的数目5 }/ i2 v: a& o! F- j9 a
while[j < people]# W1 C W' i; `6 [$ f' L
[
8 r- L' q9 I4 _; ]2 V+ U5 Z" t4 |if (item j( [credibility] of turtle (i + 1)) != -1)
1 e) R5 c$ X! y# [7 T;;判断是否给本turtle的评价质量做出过评价的节点
/ P+ m1 S% ?; ~2 g3 k& a[set note (note + item j ([credibility]of turtle (i + 1)))
. A/ {# a3 X( y( C) F9 S;;*(exp (-(people - 2)))/(people - 2))]; E8 L4 _/ d2 F# G7 g
set k (k + 1)
# f! b) Q8 N8 E0 h]$ b" M% D5 A5 d0 y/ }( T4 i
set j (j + 1)+ W+ f9 q$ K! t* P8 l& G$ r
]
) k# S* ~, O! P1 n) Z" zset note (note *(exp (- (1 / k)))/ k)
8 _2 y9 d1 W" y C* i7 P5 J+ @set credibility-list (replace-item i credibility-list note)$ T k! d+ M }) Q) x7 r
set i (i + 1)$ V# d" V/ W( b0 g& h) h9 S) _
]4 M& W+ x% f6 P2 \
end6 k; N4 G* _* f/ f
, K1 F- x' _" V1 P) R* c) d0 u
to update-global-reputation-list1 z( |5 S9 T$ D G) z
let j 0, \7 |) d: K6 e2 k, f( o6 [
while[j < people]. w) E7 _1 p; `2 m; X+ g: z$ f
[
; V2 m& l+ l* ?+ s( G2 a, t7 a, Rlet new 0( c( |: D: \0 e3 n9 K% a3 G @1 \9 \9 b
;;暂存新的一个全局声誉
" p* G; T# h( nlet i 07 T. N) I! i, ]2 D K% p
let sum-money 0
1 A, {3 g8 p6 J: l( hlet credibility-money 0* g6 q* R& x& X- [+ p( ^9 d
while [i < people]6 ?: r. n/ g5 M( h: W; X
[7 O/ b1 f( ^( d) J4 T$ D
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))7 c* f0 E& w5 F/ Q4 [- Q
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- C3 k4 _6 c2 M. L) [4 T: ^0 z
set i (i + 1)
: ]* p5 i; ^6 A0 V/ w# \0 h+ @% _]9 c* K. F( Z4 ^2 u( y
let k 0
0 ~5 \4 ?* O% g4 flet new1 0
6 y) @8 ~3 z0 y( b; y3 Fwhile [k < people]. ?+ ~: z7 t1 }# V4 C
[" h( X1 y! R3 K
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)/ N, j `3 [1 H4 e5 Y3 {
set k (k + 1)& _ ?. s$ x8 Q/ @. d( W# U0 C
]" I+ r) e& j$ }/ e3 l$ L8 ~
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 f+ B) \# q* K
set global-reputation-list (replace-item j global-reputation-list new)5 g6 b3 F5 T' J$ Q, p Q) q
set j (j + 1)& @" \7 b% U) Q8 J
]( ]3 l5 R3 z8 u) S& Y! @, |5 R$ e
end. r9 V' v' o2 e8 a: a
# \" t5 W) v3 F# M. A4 o& Z2 P& B1 Q1 A( O: Z& x2 f! Y
4 F2 l0 a# K/ W: j' w
to get-color
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set color blue
) z. X+ c0 J5 d; xend7 r. i: b* C/ {% U
9 @4 b. P- s" K2 }" h
to poll-class
- q! C1 ^7 v! S) X$ h7 B3 a4 xend7 G; j2 \+ `: E f; l/ M/ a5 j
0 \0 a1 W$ v# R) G# m
to setup-plot1
( p5 x+ e8 H% f: Q- H2 u
$ j4 J* ?3 `, s+ B' uset-current-plot "Trends-of-Local-reputation"
m. g O2 P. [' J0 z' c8 }4 {1 {6 q. E* P+ _
set-plot-x-range 0 xmax
@* P- O; N, b4 z9 y/ G" u
- R1 |- Y% k1 R( l6 dset-plot-y-range 0.0 ymax
" \ `* X" c% c* W7 ] _* lend8 {; ^ ?* Z, \! ]7 S
* }+ y# {# x6 M7 Q" [5 H$ Q" r+ Jto setup-plot2
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set-current-plot "Trends-of-global-reputation"
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set-plot-x-range 0 xmax
% ~ Q% [4 b/ V2 }. ]$ U5 j
4 x S, T/ \/ P1 C5 A* @7 ^5 @set-plot-y-range 0.0 ymax$ H* B2 Y* x/ I' z
end
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; R# t6 M9 i( j9 ~ j: j. x, z4 `to setup-plot3% U+ ]( ~8 N' ?& I) w* h
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set-current-plot "Trends-of-credibility"
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0 W }0 I& Y2 Pset-plot-x-range 0 xmax
/ [/ y) k: u. K: e% H
7 b, m3 S! S# e* sset-plot-y-range 0.0 ymax, h/ w; G9 |; y6 D; K* c) |
end* R7 b' M+ N( i, E
6 @) f. |' i' j4 E; G2 N1 Tto do-plots" ]1 u# m# `8 ]( n& u
set-current-plot "Trends-of-Local-reputation"8 a$ V; ?0 e; B8 |
set-current-plot-pen "Honest service"9 A4 Z$ ` L! s$ c6 n( h2 ~/ u
end
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* W1 {" p! P2 l) t% D F[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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