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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$ o4 ~5 s6 P/ N! M% L) c g4 b
globals[' A8 n0 I" `6 }6 G1 D! l( C9 B) `- v
xmax' }% c4 f2 D7 y) ^% [( V+ B/ g
ymax y/ E$ T8 L) N* N! w& Z
global-reputation-list
9 C; u( f0 s6 V T" P; t
7 w( ?( H/ M0 g, H8 c# D;;每一个turtle的全局声誉都存在此LIST中
- t$ p, Z2 [, e2 D p# o, Zcredibility-list6 `' k' D6 c; E8 z% J+ y+ C
;;每一个turtle的评价可信度) i& u8 ~) V( x& J
honest-service* R7 C& L" G; k; F0 e
unhonest-service
/ V. z8 U; ^) Goscillation6 F# x5 Y' a/ T" h
rand-dynamic7 }/ A. [" v8 o4 [" W
]
8 X# ]1 h+ E" a4 c3 r" {3 y+ V
turtles-own[6 C2 B; L" G X- R% s
trade-record-all/ f" A+ R' E& M. p P
;;a list of lists,由trade-record-one组成- Z: S9 D4 c/ |" C0 N
trade-record-one- G) x0 f& ]( K1 ?4 p
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录' H. E% c+ ~8 b" b
) A! D$ ?7 A' B; t- U
;;[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]]
: u4 T! F* [1 s# l- U' w- |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]
" a9 _& {. a- `: V ]7 I9 I( j1 bcredibility-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
' t- b, w2 `! I/ i4 [5 q Vneighbor-total
9 b% a7 R, U) Y; q;;记录该turtle的邻居节点的数目
5 [: h( V9 A7 i* [5 q- _+ m3 i1 Otrade-time
1 y& l/ D* `5 A% e8 S;;当前发生交易的turtle的交易时间2 B% M7 G1 ?# M: P$ d4 c
appraise-give& }+ C7 O! u3 Z }$ [
;;当前发生交易时给出的评价
) m+ i* p/ n* bappraise-receive" U4 l+ t, Q) M9 c3 I
;;当前发生交易时收到的评价
6 x6 s' @$ t( I% l$ M- ^2 |appraise-time
6 L6 n$ V7 U, H3 D3 l;;当前发生交易时的评价时间
7 [/ Y6 Y, ^) w2 G8 alocal-reputation-now;;此次交易后相对于对方turtle的局部声誉0 {0 k+ ?4 W+ I
trade-times-total: c; k/ M; z5 E6 n& I: \/ w
;;与当前turtle的交易总次数
7 H5 _, W* b% ^! a7 C2 l5 g* Etrade-money-total. t9 ^# O. z" j
;;与当前turtle的交易总金额
" t" c6 n0 N. N& }" e- }$ ?' t ?local-reputation' h. ~; [; `: n$ \3 A2 O
global-reputation
* H$ h! r8 V k" @5 f+ C. ?credibility
2 F! T% e( S2 V6 P6 I0 P;;评价可信度,每次交易后都需要更新
f+ e) U" g( C. Ycredibility-all; u4 D( f7 L3 j+ G5 E3 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
& P5 W7 W* T& N* U* G
5 u7 L- g( V2 m5 @3 {2 F;;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
1 T% y) {% g) vcredibility-one
3 x1 u8 Q( @7 ?3 o;;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
! T- ]" M/ f0 m0 Gglobal-proportion
5 o: F8 j! x8 X3 W$ {customer
$ x2 M" F6 Y; ~- |3 Jcustomer-no" X6 z; l9 u& k C& a; N! d
trust-ok7 @) q7 T! k @6 `/ {9 \9 L
trade-record-one-len;;trade-record-one的长度
3 R! g: i+ F" }5 w]! u; P; P9 g: _8 {
9 X. n/ H9 X8 j; E1 L
;;setup procedure0 r @$ G/ y7 z; r ~( D2 Z0 J
7 ]" z" ]' {6 O6 ^# ?
to setup
* N0 \& I7 {$ Y; w/ u1 T' a- X* O. t4 q5 }
ca
# d. A/ c" D- H: V$ N" z
. W( `9 P+ z$ z3 Kinitialize-settings
0 f/ z. ?2 Z8 F3 ^+ K& z
' z, c$ ]5 Y9 y5 Mcrt people [setup-turtles]
% f) P2 d* P" N* o* w0 D7 l7 c: g$ H/ [/ e- [& j0 T w4 g: k' g
reset-timer- r! ~9 U& I. m$ W; \! w
5 x" q. n+ Z9 X) \4 o# q4 Ipoll-class/ W9 K) F' E: b L2 Y. L- {3 n
) M- P5 |) ]- a: Q7 j
setup-plots
) P$ p' [' h, e! r( v( Z/ O# ^5 |; P+ c7 n3 f6 H# ~5 ~
do-plots: v* k J9 r& i& b9 Y( n9 H5 R
end
( }% w1 ~* F) l* ]/ Y/ p/ s
: j* c( N4 ^/ Tto initialize-settings
( Q" T5 ^' i+ E5 {- R) P$ L& K1 G5 t* y2 }& V
set global-reputation-list []
% i) G" u( j: w- I% n
7 `4 u- D6 ~% d3 g8 Fset credibility-list n-values people [0.5]
( h7 i) ]" B* U' i! @) @, `; N- m D0 k- X) V$ Z* E: m
set honest-service 0: G& U" W- G4 v* B( ~; M! o
1 H9 C! K2 Z7 n1 M0 j& g) P
set unhonest-service 0
3 L5 S( n" l1 r. M$ ?6 y. G, l5 y3 P: s0 k8 J
set oscillation 0
6 Q# t1 R) Y7 m: M; e6 \3 K) D2 O5 w5 u# G/ s$ n; ~) {
set rand-dynamic 08 ^7 |% m* q; p0 a% i. C9 }7 [6 |
end
C& a' r* i' U$ b" W; c9 t( M, r' O& X0 s4 ?7 y& c) x
to setup-turtles , C. D0 G$ @. {
set shape "person"
9 N2 D6 @# P" Y" ~0 msetxy random-xcor random-ycor" b' {9 y6 x9 M/ s6 `
set trade-record-one []
& E3 [/ X( q$ p: u7 @- e( `% J* C c) {! ~% u a
set trade-record-all n-values people [(list (? + 1) 0 0)]
# y, o: |% w' d J& \/ ?+ _ f+ ~/ \) o
set trade-record-current []
: U- r4 M$ M/ R: Y7 a" d- F6 Vset credibility-receive []
% a+ I0 n% ?* |& Pset local-reputation 0.5
x4 c9 A* x* sset neighbor-total 0" U7 _/ g, B( i- f3 s
set trade-times-total 0( n: k7 y9 v1 b5 {! N8 b
set trade-money-total 0, _ \& E6 Z0 W: H& s; L
set customer nobody
4 o5 k! k, R/ Lset credibility-all n-values people [creat-credibility]4 f, r3 }# l! ]9 O
set credibility n-values people [-1]
$ h' h- |& c' ^& yget-color8 ^3 x' g$ ^- Q! C% e* u" V3 z
* {& n8 E u1 E- F1 Iend1 C4 N5 `9 l: L1 _
) \3 T0 p2 v; u
to-report creat-credibility% f! I; U2 s0 ~
report n-values people [0.5]" _5 G6 |2 v. V& J( \2 w
end
5 B. z2 |* o# g
; S q/ t8 E+ c" Z% Ato setup-plots: x2 Z, l m/ t/ f8 P
9 S9 m, q1 I' C$ Q4 h' ~
set xmax 30/ p6 \4 A- Y; ]/ y
1 }" e' }% F1 T% h5 T! K0 B8 r0 w& dset ymax 1.0
' w" [7 ?. s, U3 R n9 k
+ I, L, ?5 _" {3 v& sclear-all-plots
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setup-plot1
1 w: \, m( e$ a! X1 w* _+ L, i
, N1 k c$ r7 K. o# D7 q9 gsetup-plot23 M, Z/ A2 Q L r2 ?0 Q
% V7 J6 K$ J2 s
setup-plot3; z0 z' G- y1 ^9 ^9 n
end& @1 I2 x! g3 z1 T- d7 ~
* a( p- _7 M6 v# H;;run time procedures7 J: Q" Z3 v* `
6 a" W1 W& b# Y0 q/ T$ ~$ E1 tto go* B0 G7 R) e; J, q6 u) q! r
* [" H' p# g" Q: j0 t2 r
ask turtles [do-business]
& ]8 C% R$ r" G6 k4 U0 B+ Tend% ~! g2 E% S, Y9 x! y* X5 D9 e
; |8 r7 k% O- L# X
to do-business + B R9 J" G; \$ @6 P
8 |1 X5 A1 c! l. m( } x e, [* S
rt random 360
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" {1 _ [, h+ L+ W2 s! tfd 1
5 M2 d |5 L& t7 @( E' Q% W6 N& [+ w" m
ifelse(other turtles-here != nobody)[
f" V' F2 O7 P; n- ]. I
|! @2 z2 V C/ R; B. C( ?1 yset customer one-of other turtles-here6 J* p2 U% W( n" C- I7 b
/ a2 M, g: a% l;; set [customer] of customer myself
' s+ j, v1 [ b- K, ^
' l, ?& {- n: H5 C5 U4 U5 \0 hset [trade-record-one] of self item (([who] of customer) - 1)
) T! P7 i; {6 s p& |, E[trade-record-all]of self" o9 M# |1 @! v8 o% Y* v
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
4 z( Z( u5 C, z/ K9 D- d0 G6 W; o3 X4 F$ L4 [+ ]; F) b% V: ]
set [trade-record-one] of customer item (([who] of self) - 1)
5 O6 B- t3 v, c0 g# _6 Q6 g# ~[trade-record-all]of customer& ^! r6 F3 s, F5 o
$ G$ {; Y1 i4 q" p# a2 qset [trade-record-one-len] of self length [trade-record-one] of self
. y' ^4 @- k# L
8 D# }8 ?) w3 V$ }+ }* sset trade-record-current( list (timer) (random money-upper-limit))
) t9 F( T0 K( Y( u
& {: a& J8 d$ S' {ask self [do-trust]
4 H0 v8 i( w' e;;先求i对j的信任度
# L7 p" y* c8 j5 y7 Q. ?: O' g; S4 ?: ]
if ([trust-ok] of self)! n) e; U9 V1 H5 I1 d( M
;;根据i对j的信任度来决定是否与j进行交易[. q# U, c) E) n) w5 ` c
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself. V$ h3 X3 q6 n4 U" O3 r+ N
. E! H5 \* `9 p$ u) O5 K
[" o' _2 _* Z! ^) @0 X5 J
0 j, f; h$ A, b$ i! J
do-trade
/ K2 n! w6 `3 S* j5 z! E, {& a; u% C" f$ j
update-credibility-ijl
% Q; z/ l+ r, y' Y s; D& ]$ ~* g2 l# F4 L
update-credibility-list
& U$ m9 Z7 u! b2 O$ T7 m. l: w; I/ Q: U8 R1 n0 `
O9 o; {4 y& |6 v0 V# J- c3 t
update-global-reputation-list
4 Y6 A0 c$ Y/ W5 E% c% C1 `3 j; z6 y) L/ q
poll-class) N( _% y( Y r L
" }, y" L) Q9 Y9 g5 o6 W$ Nget-color. `% J9 m1 }; ^4 l8 n
5 p8 W$ n6 D& L9 D- R) ?2 x
]]! G: Q4 V' o+ c) U7 l1 q% s6 N
3 ?( v) G+ [0 \ o;;如果所得的信任度满足条件,则进行交易! x6 u, @% m4 v2 U, m
8 M( n! W8 g" g+ V
[
' l5 u6 J, h3 D! \6 \/ ?6 I& t
7 O3 c% ~9 \& W7 N9 Krt random 360& k9 i& N8 s3 a2 ?2 p
/ j) T% h$ [) A D! J- w s! n! r
fd 1
3 g' f, L8 ~; d9 @$ v% U0 n% ^3 g; F
]
, d6 S4 y: g5 h. H
1 ~3 U& L2 X5 u9 ?end4 u6 I2 a7 y- D9 P) O' Y
' ^- P! _4 p6 A5 A( Tto do-trust ) A9 Q5 Q9 l2 Y: X1 ?/ F
set trust-ok False
9 ?3 z& j- ~/ _) p; p. Z7 k; \6 G* T( Z: J. o: j" {' [; |
$ V8 v' w& H I, P% zlet max-trade-times 0. i/ @; b3 }0 T7 t/ t: g/ }- W
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 f3 r( s( i- N8 R' T- I
let max-trade-money 07 y3 n n* `# @! d; u$ D: V4 o3 K& k
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]7 V2 K5 I) c0 h0 e1 }" R n& f7 V
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))9 b( L5 k) L! P( m6 E( P
/ Y; B4 e1 `! I5 S9 U% d& A+ P$ Z% F
get-global-proportion
3 j: T( _# H1 w3 V* n+ H Y' S' [/ Xlet trust-value x1 A0 @: w2 ^4 W! 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)
) y" v' p5 x2 h) ]" n! \8 |, d5 v0 yif(trust-value > trade-trust-value)0 K/ r2 I3 P' E
[set trust-ok true]0 `" y, O3 i+ {1 u+ u, c8 ?) q/ t
end; o, u! U9 v5 A# R& f1 J9 [2 a9 E4 m3 P
, M, c$ [1 E- U" A
to get-global-proportion
+ o7 \7 h) A, Y- H6 p/ Qifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* K$ }& s* b! o9 R( P6 e[set global-proportion 0]
8 m% D. ~1 e) S- n% i[let i 0
/ N0 \: J. V5 T( P, w% I; a3 Plet sum-money 0
1 h9 l. T$ z! i5 N8 @3 n) K0 xwhile[ i < people]# `/ q* Q" T1 K
[# L* w% h! U* K3 H4 j1 D
if( length (item i
) X& v) ~* ~/ Q- G[trade-record-all] of customer) > 3 )
% z/ u3 h" {( ~1 q: P[5 ]: D: d/ ^9 w- u1 o& _% S
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))7 Q) k/ h2 y- M @& @1 h" Z( o
]4 y, I% E2 e% e. t! s
]
0 K) D/ `7 N4 @: e% Nlet j 0
1 S2 d% u4 \. a0 V3 U9 x& Flet note 0
# _3 C$ |) q$ n, Uwhile[ j < people]# h$ J' ]) t" n `
[ l7 H+ y: w: z' Q0 T; l" ]$ z* g
if( length (item i( e7 Y% V" t; B; {
[trade-record-all] of customer) > 3 )
2 A' i% A! h! M# C" H[
7 f+ _- B& W/ V( D* `ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)+ E. j( b7 E2 ~6 @
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]& m/ n$ }$ b3 Q" W
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
8 E7 v) w+ x9 H: ~ }], a! H9 {( F/ C# p8 S( F
]
1 K0 ^: S; i. M7 J2 R6 ]" k. c2 vset global-proportion note: P7 t4 X0 j' P& C6 a
]
: W* J. B* b8 P+ Q kend0 \+ ]7 v) B1 K
5 s" V5 R' L' |
to do-trade
& [3 e4 V4 i5 D }: j;;这个过程实际上是给双方作出评价的过程" u* Q! X0 e! z3 t# j0 C
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价) r+ J# @3 X; ]# C% Z% g1 p' F
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( p+ R& b! U' i$ K- W( R
set trade-record-current lput(timer) trade-record-current
0 ^4 k6 U7 j) P/ T;;评价时间
- {, O. l N8 N mask myself [* G2 d6 X& Y" k, x1 R/ P6 e
update-local-reputation
! K5 F# D; t3 U% y2 F _! zset trade-record-current lput([local-reputation] of myself) trade-record-current
4 [; _* U0 n( n2 W: Q0 c]6 p! l. _* u% a. L
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself+ v, ?: O: N0 V1 R& {
;;将此次交易的记录加入到trade-record-one中
/ ]. l- H, V4 l5 h1 _$ oset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)- P& d, i8 C1 t* _7 `
let note (item 2 trade-record-current )
7 |+ ?# S2 o7 P; G# Eset trade-record-current
6 S0 V. [' R6 M; j6 o) k* _(replace-item 2 trade-record-current (item 3 trade-record-current))
# `9 ~% \ J, c! Iset trade-record-current8 i2 n) _$ V( @) {" y
(replace-item 3 trade-record-current note)! U9 o/ j: n5 J! h! V
7 x- e) U# K/ E! N6 S8 @6 c
' z6 N$ j" U \. w' ~' n
ask customer [1 {) L0 s5 z& Y# L9 v
update-local-reputation
9 Q4 P; E8 ^. m- |5 {1 hset trade-record-current1 m0 S1 E1 w7 P/ P. d
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ; \8 B- ~/ i2 R. i$ h: e
]
) r) f H$ t- b; j/ J$ H1 `) f7 B
* P* S. w$ q B- z1 m$ j5 v' j" r- |5 H
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
; q3 }# B( [2 @5 F
8 d8 n( T+ E" p6 \% X% wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))% V8 ^& _( b: ^" ~7 Z# |
;;将此次交易的记录加入到customer的trade-record-all中, ?0 K5 X6 O2 f) Z4 z- k
end3 ^+ I' A6 h* V% A+ p8 l ^0 ^
1 x8 d- ]% F% {5 l
to update-local-reputation
$ @# y) C. D I8 V0 W+ j. gset [trade-record-one-len] of myself length [trade-record-one] of myself! R5 W0 o+ r$ a8 P" Z
' p; ]! J3 E. u
8 R0 u' z! L& y7 s7 t;;if [trade-record-one-len] of myself > 3
8 w# Q+ U/ e4 R3 I/ E* Tupdate-neighbor-total
& H; M2 B5 b1 S. l+ S;;更新邻居节点的数目,在此进行; s9 h& p1 Z( P
let i 3- n: X; h1 l0 g3 y# l8 I( s& @. D
let sum-time 0; o( B- @: q6 l& g2 L0 J
while[i < [trade-record-one-len] of myself]) c7 l# |4 ~. ?2 X8 n) ]+ o4 ~' Z2 l
[# [, H6 y1 A5 `2 e; M0 J# H
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 C% A8 M# e* y; W' e
set i
/ y1 i3 G1 v: v' N( i + 1)! W3 r$ Q6 E1 u( `( @% y: H/ q
]
8 s1 q4 R5 Z" H% h7 v8 vlet j 3
& {6 z. @ n" y: G. Z( vlet sum-money 0. z' E( P( E: { q5 e
while[j < [trade-record-one-len] of myself]
/ a& c( O$ \9 v5 y) C[# @; z% |5 V K4 U- U# G9 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)
+ @/ R1 W) i7 q9 g6 Gset j
* F- Y$ c! b. X: @9 R7 l( j + 1)
& C' _- t* B1 Y( d. |; s# j]( T" W. m% \% r/ i0 }' b2 I
let k 3
( o9 R" N0 Y2 Tlet power 0
2 j) W$ R/ I3 h5 Rlet local 0
& |* N/ P; x+ o4 c* wwhile [k <[trade-record-one-len] of myself]- R' R" }1 Z+ h# m
[
% M* _. f; }% A' A$ G( Iset 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) 7 T3 a( u6 _7 L4 ~* D3 Y
set k (k + 1)( F) F# F7 m: B6 |- L
]2 D& T% H: O/ f" s7 `; a
set [local-reputation] of myself (local)- h9 D$ B- E; y: U4 L2 D
end
7 Y! Z9 v" O# U& l
2 ~' I% `) K7 B6 L2 Y }to update-neighbor-total/ Z' H* W4 S4 i4 p! L
1 p# d# O& d& Z* E% eif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]0 B) Y! M1 I6 I1 t( i4 {. s
( ~; J2 T9 O! M# T
+ r- G {4 h9 @; q1 ]/ nend
k9 v" D9 g. ?; }! S4 Q9 {9 C* U( N& D! m$ q9 ]
to update-credibility-ijl
K; Y. P# g! J- k# I
. ~) R$ B5 P1 o5 M$ x/ h8 f& W;;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。
# K: F" ?9 Q5 d( B2 w! u) p9 Qlet l 0
5 G; C" r4 @8 {8 Ywhile[ l < people ]$ c3 F: S9 {( @6 V8 m; f( w
;;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' i% T! N: O8 m+ i, y* [; {
[
* I- k' X& x) d& zlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)( |6 K6 _4 F4 S! \) d
if (trade-record-one-j-l-len > 3)# v( f, z7 B! y7 T7 g
[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# l8 k1 n6 Q' X7 i
let i 3
% x0 a- I1 o3 R. A8 Y; [1 |/ ulet sum-time 0/ t( R) A% `5 t9 `/ X& B
while[i < trade-record-one-len]
2 K! ^) r0 S7 a4 _, i$ z[5 c* U0 Q) `; e' Z& U; K
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )0 c7 R6 g& O X# F2 N
set i. F5 n0 V" g' A. K
( i + 1)2 A: A1 g% S: p o( o4 g
]
' J, c4 w6 l% R; i4 s8 M/ q1 Vlet credibility-i-j-l 0
' s* V) K" C: x9 P6 D; B% c;;i评价(j对jl的评价)
' {5 x. M5 N* j! Glet j 32 p3 o t1 ?8 `3 ~
let k 4
6 C! ^& q$ n7 z+ M# H8 T' y- [while[j < trade-record-one-len]* L& U% x4 h# c( {
[
+ e3 f: j" I1 m; d# \( m! y! W( D; ]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( J' @3 e) ~( j, c+ l
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)
+ _/ q9 b. N9 s Yset j
5 I: t9 p8 v6 A3 L$ k+ t5 l( j + 1)& }* g. ?- b# y' X7 A9 x
]+ G, h6 w; F5 P/ i% E
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 ))
/ Q w! o% m3 d' V7 X. ~
7 x* L2 m' B% V/ e. E
, o7 |+ a; P/ k0 Ulet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))# x& A3 ?* l& ~: l
;;及时更新i对l的评价质量的评价* Y8 y, S8 ^' `- |
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# h- R0 C4 ~& N" G7 f, ?6 E. Uset l (l + 1). `$ F" d( H+ O* ^) k
]
) u z6 e e1 hend; D) m, f2 \. ?2 m$ W
: z$ ? @; w% j& H2 `6 Zto update-credibility-list# o+ b* a# }* c e& s6 o3 [
let i 0
9 d! j8 M1 N2 [' g' ~- Jwhile[i < people]
3 v: J5 G) W. a, P: J( `5 p: t[
; l9 \6 @5 H* W+ Slet j 0% T5 f: i" m2 q' H1 K; {
let note 0: m7 b$ U1 q3 e2 o% m5 r: M5 z; D3 l
let k 0& d- I! T9 u1 n9 r0 S# A3 t4 N3 G1 m
;;计作出过评价的邻居节点的数目5 E5 i% c1 c( \
while[j < people]2 G$ u% Q2 }' ~8 v
[5 Y$ M# J& O* Y* {' S
if (item j( [credibility] of turtle (i + 1)) != -1)
+ f* s+ L: G% o6 i* U;;判断是否给本turtle的评价质量做出过评价的节点( R6 D( Z8 U u2 O1 l
[set note (note + item j ([credibility]of turtle (i + 1)))
" v q/ ^( F4 U4 m G& @( c;;*(exp (-(people - 2)))/(people - 2))]
# T0 l |- n5 p: Kset k (k + 1)* l( E a) ^& ?) ^# n
]; P3 p$ \4 _5 c9 h0 G V$ ]
set j (j + 1)
+ g' O) C" p) i]
. N) n, H1 O N" ^: ^0 Dset note (note *(exp (- (1 / k)))/ k)8 i6 ^6 V5 }9 N3 k* ]# N8 W
set credibility-list (replace-item i credibility-list note)
3 J t1 I) `% I3 N1 N" j* a7 Mset i (i + 1), L" b" `, T5 U" i/ N; U( i
] j. w) U0 k1 r, X$ Q7 J+ n) V
end
) K2 q5 z) N9 t: ?1 p& O7 S8 M
4 ]6 I7 D. l9 _7 B: E& Ato update-global-reputation-list8 `0 a8 m6 `0 ~) {) f
let j 07 F0 y$ P8 r5 |
while[j < people]# R5 p( _3 O z% c8 q% c$ }2 Z9 \
[ q7 a/ E- ]2 t2 ]2 B- f$ \/ q# N" E
let new 0
6 c! B, x* V1 `' D% S. f;;暂存新的一个全局声誉
2 @5 r# y. l: G* G8 }let i 0
: h% U8 Y/ B; M2 e, t- zlet sum-money 0
9 c/ ~/ S {; Y& d# A; f" Qlet credibility-money 07 w& l4 G) I' X
while [i < people], T8 Z( l9 U4 D, A* p2 M0 t6 X) Z
[: d: N7 L" S& |# N6 z* d; c
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
" k9 \( H( |" @7 `1 ~set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))4 Q* e; `" R: o* e) `
set i (i + 1)
' A; l4 Y' }- q- n+ H1 _]4 A p/ H( p4 d& V4 B
let k 0+ c0 E2 S8 ^ n/ v7 K p
let new1 0
- X0 t8 \2 Q/ }) cwhile [k < people]
, Q* H6 u! y: _7 y& M8 d0 ^; b[* j$ j; ?: S5 V3 q" T$ s$ K1 W+ z
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)& P) g$ D5 j) ]2 U) a
set k (k + 1)
, P" w7 \- l+ q: G/ D; }]
/ a1 O3 Y7 Z' b7 T: i( hset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
: z: T) q" l/ e3 {4 m, ~set global-reputation-list (replace-item j global-reputation-list new)
5 [; D X T) j$ R* pset j (j + 1)7 k! a2 E4 f. y6 A
]
! X: H& o \- j6 ^1 Y) tend( h& N, w- {: r9 ~( x
5 Q' W9 j& a9 ], R8 g8 J2 m* ~1 G$ }; C8 x# F3 z0 h$ C, g
' j: t8 V" C) y1 v ?$ @2 Fto get-color0 z9 ^$ c+ {6 W' i
) X" C5 D7 ?) H8 x( V* Hset color blue
- W5 J- l' e* C7 W, Y" p8 jend
# t% x, s. E C$ `( k. ]
" C, e e% h6 \! z$ X" S# @to poll-class! ?+ s# | E ~7 ?# |
end& d9 m' }3 {4 e
/ y% {% v0 I4 x* Z, E6 Tto setup-plot1
+ p0 J/ W! Q3 W; x& H$ C& W$ R# b/ o" V8 H. l4 V
set-current-plot "Trends-of-Local-reputation"( c+ V8 z+ C9 j4 ^ o. T3 T' g
' `( D X1 b3 m* G& P; L8 P U
set-plot-x-range 0 xmax* q, A+ J; l( h2 p! o7 r" p, ^
2 K9 A" X: ?1 w$ Q# D( n4 i$ mset-plot-y-range 0.0 ymax. B% r7 p7 N, J
end
$ l, p: l; m! B% f. V! L
- y' ], t3 R0 l* ?$ uto setup-plot2 z5 B; S9 {5 h) E( F& g
. S' v; J# o; e7 |. g3 Uset-current-plot "Trends-of-global-reputation"
4 p9 n% Q( H/ |( P% H6 W7 U0 _) j. Z. k0 n
set-plot-x-range 0 xmax9 X( z& v$ @8 o9 U
# n8 V$ w4 A$ D$ U- rset-plot-y-range 0.0 ymax% j9 A1 y/ Y( i
end
9 z+ V8 R$ Z: {; T! f" ], P0 f/ a% V G2 L
to setup-plot3
( A5 b' c- V6 f1 ^2 b" h) H. ~* }+ s% X7 K7 a; Q& K A; }
set-current-plot "Trends-of-credibility"
: j! r" `8 \ k, z4 f5 t# ^+ @% [+ ?$ c9 C& k; \5 a9 T
set-plot-x-range 0 xmax" u; b9 D' f; t2 P5 {7 N
* u1 E: Q* ~$ V/ @$ Q i4 F/ Z! X9 pset-plot-y-range 0.0 ymax4 H. U0 ]- {' f7 W$ @- n' l4 M: |
end! t' W! a9 l' i2 A% @2 _$ ?" k: G% q, c
& a/ z: ^# o% c6 V; \. `; v6 g) V
to do-plots
( j, q, W% F# z& o; fset-current-plot "Trends-of-Local-reputation"
- F& X% I+ M* Mset-current-plot-pen "Honest service"# f7 \1 o% f- U" _7 h5 w w0 q
end7 P# d L9 f0 h4 I
3 b6 V% T5 C6 b# i" B[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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