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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
5 m/ e! m' L; W$ {& z& zglobals[1 ~1 @% m7 b( b$ M$ ?
xmax2 P/ ]; Z! L7 T3 x& ~& S# J5 F
ymax
8 Y6 `- s; f. @0 p: y1 S$ Qglobal-reputation-list
6 `' Q5 m2 C3 }& E8 L
2 k2 p- w5 c: G2 A7 l, o;;每一个turtle的全局声誉都存在此LIST中, ?. G3 z. E6 D" O. t8 X
credibility-list* L/ B' y# ^: N% W3 N W: X V- }
;;每一个turtle的评价可信度
6 {) q/ C5 t) j+ H! ~" vhonest-service
. l- o5 V7 }2 p6 S( X) zunhonest-service, ~8 ^" e4 ]& ^1 A1 f
oscillation$ k/ }5 I0 F2 [) |- U" L
rand-dynamic
4 S. ^: y$ r9 r) Z" C]; {' P0 W' B; E+ o: a( [4 H p
* A0 Q8 M# K* aturtles-own[
! c# T/ s0 d/ C$ j" jtrade-record-all
/ J6 y3 o0 c8 Z& n$ R0 G;;a list of lists,由trade-record-one组成9 c! u6 V# m* P: o7 m! [
trade-record-one
+ t7 V7 T# q( N;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
( R7 V% o3 G- q/ x6 ^6 y7 m* x, D
;;[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]]
' Z. n7 Z- ]8 y& T& M/ s/ @* U) otrade-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]
$ \7 w$ X* v' K5 A# Ycredibility-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
. d! i, M+ ?* v1 ^6 fneighbor-total, U; D# G* f% E- A& N" g. ^: o- Z
;;记录该turtle的邻居节点的数目7 H: a4 A1 [9 J+ E& x
trade-time. `" [$ t4 b. O1 F
;;当前发生交易的turtle的交易时间
) {- b$ P/ u# [# J. Jappraise-give, ?6 }9 v" P' u& o) P
;;当前发生交易时给出的评价+ ?+ T, y9 j; F5 M$ x, d0 j! ]+ f ~
appraise-receive: J/ Q, Z* V: M9 ^$ R
;;当前发生交易时收到的评价
# L1 Z7 W* P$ Rappraise-time
- M8 t: ^) V9 L" h5 a8 Q4 L a5 X; U;;当前发生交易时的评价时间
4 m3 [2 G/ E9 ?/ s8 U6 O4 Elocal-reputation-now;;此次交易后相对于对方turtle的局部声誉4 q. {! N9 j! |7 L: G
trade-times-total
& W. |) }6 j1 |7 b;;与当前turtle的交易总次数
2 g( {4 u4 }1 E- j, R# Etrade-money-total
3 t- D* q- X; B& J8 p;;与当前turtle的交易总金额
/ Q6 d4 y% D' q: clocal-reputation5 r& e. I/ z5 d9 @6 G2 |
global-reputation2 }8 q- k0 t) F; F1 i3 f. y# K5 l: o
credibility9 B" {2 X& @4 D# _; }' K
;;评价可信度,每次交易后都需要更新
5 L3 p- P/ n8 k1 N( a. @credibility-all' H7 B3 g2 g& U
;;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( t! z* U+ [" `+ K1 ~* H* i8 w
; H0 G, U: \( i7 u;;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
[4 P# j6 f7 Y/ [ L7 u. i xcredibility-one4 k# ~, l" t% g2 Q; Z7 z q
;;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0 _! a& j5 I5 ~6 e' ]; q# S3 |, W
global-proportion5 G* q) W$ A# g; [9 Y
customer
. J9 P; @- m% `2 A9 \- Qcustomer-no2 n# `6 r! z/ j7 L& K5 W
trust-ok: ^3 B1 J$ e- e4 w7 e& M$ E
trade-record-one-len;;trade-record-one的长度
; C9 D/ h4 S& j! f0 K! Y8 d: w) a]5 F6 v% o2 X1 }
; k n# g* ?3 p7 y1 w% O4 i0 m
;;setup procedure. x! R5 X) P) d5 ]. b
$ ~( K+ g' F3 ~; h4 `" f. bto setup5 B" s+ d: s* S2 H1 |
0 |0 o4 @, |& q" s3 p. }ca3 p1 F( w$ B# l E$ q6 m1 Z) P3 s4 v
0 y+ ]4 M9 ?* A$ G1 p6 L4 o
initialize-settings- O2 D5 A7 W6 Y+ r( z
$ X* b5 Q2 Q3 U
crt people [setup-turtles]
1 A# Q( k$ ]8 |2 K( J) D* f0 o) U) U/ G2 `
reset-timer4 z6 V) Z z H7 F
+ T; n& X0 O# Tpoll-class
8 j1 h+ q% s6 c9 M* [% F! W( |2 J# Y# @: ?
setup-plots
- F3 g" q- S) O: R2 o8 [: c/ ^$ k
do-plots
3 n0 i/ V* ^) @5 fend' c4 a" e" E* F0 P
+ d% f2 i( g& [6 j+ `) {to initialize-settings
+ A9 A( a# t/ [$ L; J! I' z- |
9 i# R& R6 z" o0 h% W) Y6 z; aset global-reputation-list []# v! K% L$ b% `; N+ i7 E
% l8 i( B) r8 g% N% vset credibility-list n-values people [0.5]
+ Y0 F N3 N2 {, Z$ G e l) O5 b6 @2 K8 t! g# z
set honest-service 0
% h( m# T5 J, H$ J7 N5 n- f: ?3 [ b
set unhonest-service 0+ M5 w# ^4 r/ q K9 A
! y9 V! O! m. j4 L pset oscillation 0
! Q+ C. D I" ~) D( [ Y* f3 e; u( A9 R, }
set rand-dynamic 0
7 Y/ z. c- V. @: s: H* Dend4 U$ r$ z( k* n) A0 ^( `
7 `. Q, X) w3 p+ dto setup-turtles 7 V* M0 E! d$ u9 ~
set shape "person". g0 r3 O: I* w) P; u4 k5 [
setxy random-xcor random-ycor
5 |3 O( y/ i' cset trade-record-one []
% o1 r3 M+ B# x8 i3 B6 u
! E+ ~$ U7 |4 e! O& D( R* E) o6 T0 ^set trade-record-all n-values people [(list (? + 1) 0 0)] % p. j) Y1 h/ W9 V/ W! P
+ a: X! f$ w7 Z5 i) t
set trade-record-current []
+ Z8 f, `8 {* S: x" w) \8 e0 Pset credibility-receive []! X: G- J1 c7 k6 S
set local-reputation 0.5
6 [) n- V/ u5 c V6 Bset neighbor-total 0
0 L4 c [# `; t. Jset trade-times-total 06 F& l9 a( l3 @) w& `
set trade-money-total 0( H' c$ j8 Z* y# f1 _4 o) N
set customer nobody
- w! n: ~" N0 l, K cset credibility-all n-values people [creat-credibility]9 y& ^' G1 F( V7 @. d
set credibility n-values people [-1]
" f$ C) E$ l4 V+ Xget-color
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7 a& ?! w7 [. G- wend
( w+ V' q- d" N$ [1 }' t2 y; n9 _2 V& U" ^% h) X! z4 r5 {
to-report creat-credibility' n$ a: s$ N. A A
report n-values people [0.5]
3 h. K; P( u; T2 Eend
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to setup-plots
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" V8 @+ b6 c' @, dset xmax 30 a) c+ c6 Z$ Z& n
" S+ M$ H" `) s) c. t. t+ ?6 q
set ymax 1.07 V) ^ F% p( [( D9 s$ l
( w/ A3 O0 C/ j: Yclear-all-plots+ l7 _4 O# G7 [0 C- h- ^6 g
7 C3 X S$ e) K2 A9 s! j
setup-plot1
; O: H- R. [/ m9 J' V
1 }( e3 M7 W$ T. [/ j0 Bsetup-plot2, ~8 m6 D% \8 x- y' y3 _
7 h/ \0 q; I- Q( t: N8 N4 f- d9 Ysetup-plot3
( q' _) h; t' i' C' b- f" r6 s; O$ Cend
* A1 |" `9 @+ P' Y V& |7 R
( B3 J* `8 N; W! M* D, V" O;;run time procedures
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, M8 d) E; A# x4 n& |: Jto go3 o/ S1 v5 j. A4 {$ W* @
& t+ o) P% G ^5 L, l- Iask turtles [do-business]
. f7 [# T1 x" u: k2 p- b% |end: b2 C2 q) F- I0 l: h- y
- w) a$ l2 q. o l* Z
to do-business : z. Y$ j: T) `% m8 P. b( p8 S
( @6 k. a& o6 z& P' v+ N
$ \$ R5 @: p' H4 I& e8 ^1 I5 }rt random 360
; l9 B: O/ \- J9 Y0 b# K
f7 u9 y8 ?. r' ?* _% e3 w* ?fd 1
, |( A8 \) ]0 t0 A; A" u3 ]8 _ v Z- j- m0 E+ x' c
ifelse(other turtles-here != nobody)[
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2 @, s( |; ^' D+ \4 z$ jset customer one-of other turtles-here1 m/ l0 F3 c2 I$ X
% o0 ^: N- E8 G0 L! H' c;; set [customer] of customer myself; d. Z6 | {* R
& i% ]0 [* A& S, ^8 }+ e' S& S! H
set [trade-record-one] of self item (([who] of customer) - 1)9 Q6 ^) ^2 v5 w/ k* {
[trade-record-all]of self1 d& c& } z. Y1 q( P3 ?1 U; N2 ^) w
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: ~0 w1 W/ t# V4 x* \' g0 L. T ^) o. d
set [trade-record-one] of customer item (([who] of self) - 1)
. R1 l6 L7 E# v+ H. U' B% n[trade-record-all]of customer
: M j( A5 V5 r0 n- G
: s$ O7 ~9 j3 ^+ B) s0 H- u* C3 oset [trade-record-one-len] of self length [trade-record-one] of self% P2 E+ q0 T, |3 @" L8 x1 c
+ C# g0 h, C, `
set trade-record-current( list (timer) (random money-upper-limit))5 }, V, A6 p& [2 k0 y
d- \ J/ t; N# w
ask self [do-trust]! m3 b" U0 l7 D% w6 y. a. w
;;先求i对j的信任度7 D, k5 ^2 h2 E8 K9 I i+ h# r
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if ([trust-ok] of self)) N1 n9 u0 ?! v9 ?" t
;;根据i对j的信任度来决定是否与j进行交易[
+ r' S. R- q# ?ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
" V, u% v8 H5 {
8 A3 b) B! m+ y' Z5 X# x. ?[
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do-trade
7 \4 _3 \, ?$ b+ f! D* k
6 W. g) t/ q& [/ ?, qupdate-credibility-ijl$ B2 L( G5 M' l
4 Q* |$ E2 D" f' P5 f0 ^( C+ G- G, Xupdate-credibility-list8 t7 O* g4 L R6 a
4 h5 Y4 _4 X+ `
5 @6 i g, S/ W4 |% c1 Vupdate-global-reputation-list
; K5 C" J7 L: u' V
! P/ M+ o% h' G# A, _! D" opoll-class
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get-color
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]]
9 o y' U" o- f, a) O4 l4 m [ H2 N$ r1 I7 ^
;;如果所得的信任度满足条件,则进行交易) k% v# K- S! Y5 D$ }9 f2 T' Q. e9 j' [
0 ^" @- ?2 \3 z6 L$ Z9 \# I
[
; Z$ k; f9 @8 ~! N! [
8 W: v3 d* P# W* G3 Yrt random 360, o m( K5 u' s
0 {0 l. c4 C }% `) C Ffd 1
1 s2 W- I8 g: D& U2 O2 X" y) p2 w4 {2 m1 t! u1 X
]
* {9 J0 a1 w" c& v L' ?4 @% K; \/ g" Q( A/ V" U
end: s* |2 g$ i& J6 F" T+ @
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to do-trust ) z/ m3 p8 f+ k' V3 |; Y7 Z% a
set trust-ok False4 C1 W5 v- Z: A* f2 F
: X' g" F' n0 S5 J9 ^0 E9 c. E3 c; D h7 J
let max-trade-times 0
' r7 g6 c1 @9 m) I* zforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 Q: X* a& Y, u: ?2 G
let max-trade-money 0
7 ^) Y& A- \8 |8 }% ]foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
6 Y% w; }* g7 y" @let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
: H/ e- Z) c# \' Z! B
- i$ p4 F. X/ i1 C8 `, o/ ]* Q5 z
get-global-proportion* }& w* J4 T- W8 r% Y L
let trust-value
% Y0 O( N% G# q+ t7 K0 ?$ Zlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)0 l) Z, A/ z c/ ~" Z. K
if(trust-value > trade-trust-value)$ l' O# M! o3 E5 A- j
[set trust-ok true]! K. U; S9 i) A5 R' E% P
end
( F" y% F# \" m' G/ b& ~
I0 x4 h3 h7 F; ]+ c9 f6 lto get-global-proportion2 f3 U) U7 Z) e+ Q. K
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
. |4 T: s; n# J4 |[set global-proportion 0]
$ @# r" q% ^/ A1 f9 |* S& V( _[let i 0( W6 g' c* W" y# |* Y
let sum-money 0' O$ {0 }7 Y& V5 G1 M% K
while[ i < people]6 a* d6 W, b# |( G0 G$ D
[5 w' A& y4 o; j! c9 S r1 B0 F* i
if( length (item i
' g" N6 D% N+ e. o* ^2 |[trade-record-all] of customer) > 3 )
, H2 Y+ h" L& [' B/ i% v[* C8 @* S y F( F
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))! T0 I' g3 Q7 V/ I/ y \2 E+ v
]
* A9 M8 |+ I+ `; A4 z! x) Z% f6 R4 @]
: f+ @( t0 ?- D3 Flet j 0
) z+ f2 a: s1 A7 z( h' _let note 0. k4 t* ]) q1 ]0 Q- \. }- Y% B7 B
while[ j < people]
" j( W: x3 p+ |4 D( f3 \9 Q[
6 F! ~: ]# E5 z% `+ Yif( length (item i
6 \' W e n. ]6 i2 M[trade-record-all] of customer) > 3 )1 T, a9 G6 d: G7 {; ^. A) `6 y0 m
[
) B( s2 g- T8 {7 m7 ?$ N/ O. M. v6 difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)2 e0 q6 S( X# M1 |) C( K
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 f, b# b; o* u$ R" T! r
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
( e E' w# V/ ]: [# [' p. {]
, o- b- f& s. ?" Y]/ ~, t/ g6 G6 M
set global-proportion note- L" U. q2 h5 T
]
5 O; p3 H8 |% K4 U% }. m* ]3 Kend% Y9 X2 j3 O! {' w
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to do-trade
1 p4 i5 ^& N f8 D" Y- Y4 ?, x;;这个过程实际上是给双方作出评价的过程 _/ ^0 E1 R8 S( o
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价# i- U2 ]" p, q9 N' l8 H0 ?6 `
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
: C5 `2 N: I7 M- |" eset trade-record-current lput(timer) trade-record-current! Z+ h# v) {( s8 V
;;评价时间
/ H8 G0 z' g$ V5 D; X7 I# _ask myself [
n0 ^; i; W& l$ y8 Q& Y: [- rupdate-local-reputation! r# g) ]! q4 T9 _
set trade-record-current lput([local-reputation] of myself) trade-record-current+ Z5 S% y- z- w
]
" D. D; U1 A" |set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself1 [* c. r+ C& x4 L @
;;将此次交易的记录加入到trade-record-one中' U) X1 z6 e i
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)9 |, a3 ?9 f% p9 H8 r1 ^( O3 t0 K/ o2 ?) N
let note (item 2 trade-record-current )5 e! |/ M- H9 U
set trade-record-current2 Q- I% G4 ]: J5 b' _: P3 i( u6 i
(replace-item 2 trade-record-current (item 3 trade-record-current))1 R3 M* n# j, r9 W& G9 x6 v
set trade-record-current
! V% l# h5 O% P& t4 _5 S+ L6 [. ?. t(replace-item 3 trade-record-current note)2 u$ _- B" [" [- R
) g" n: P6 d0 Y
( K1 \, o* C- K
ask customer [
/ n8 C4 S: Y1 Aupdate-local-reputation
" \( J* f0 `0 h0 C! F9 b. W4 D* Mset trade-record-current( z" }/ x! s' W8 I6 r- X) l) r: v
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
M9 f8 X- W- w7 g% p; X]
5 H2 N5 s# ^ e7 F( @
! M- D3 {! O, J1 {! ?' Q: r8 }/ t: p9 o6 Y( Z2 {4 b. v- R2 }+ L; n
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
) a2 G* u# k/ Q2 J) a
( J& G3 J$ `8 Y. }$ ` f0 o4 Zset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
3 y) G! ~7 m' }/ t/ l; d: M7 u( J;;将此次交易的记录加入到customer的trade-record-all中; `& i$ v3 N% i' Q) L
end3 v, n& O/ ?" _2 ~. ]7 G3 e
! `7 H' o9 i/ _+ |$ G' C4 t7 A
to update-local-reputation
7 b# O0 M9 u4 |( pset [trade-record-one-len] of myself length [trade-record-one] of myself
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9 s- E% C7 A5 U* F* ]. G7 U
, b0 m1 ?4 b& g" z/ x;;if [trade-record-one-len] of myself > 3
* q2 P9 [) C% c8 lupdate-neighbor-total9 \* m% L, ?6 S- e4 G) t( ~
;;更新邻居节点的数目,在此进行
) V3 l6 t3 m2 ilet i 3
- T/ }. B5 l. [* ~0 \let sum-time 0$ M$ ]$ H6 s: f
while[i < [trade-record-one-len] of myself]
# `1 w2 G8 {% y V& m" R- U[
7 p5 t" Y3 U' c, X: Y! k3 Gset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )! V9 V# @. c6 Q; R$ V' F
set i
" u9 \1 }5 ^% q! H( i + 1)
( @) T& z% u" _9 L]" h& }& A- z8 j" l& B/ |7 r0 t
let j 3
" J: m4 {) v0 [) F! S5 Zlet sum-money 00 A9 N- v9 R, ]3 ?
while[j < [trade-record-one-len] of myself]
u' b% v( L9 ~! p- j[3 p e. \+ K ?
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)
% c) ]! S- o) a' Q+ n2 Sset j, R% r4 ~+ c& }& h1 i
( j + 1)
- L6 S9 a* I2 Y- \0 w0 m7 H]
& X" c8 E/ p# Rlet k 3
9 f! C- u% c: I5 w6 R' Jlet power 0
8 S G8 |. [& l* M/ tlet local 0& U" w% F$ O4 ]' ?7 T
while [k <[trade-record-one-len] of myself]4 u9 `4 P7 C3 z/ G5 Q+ t
[
" o, I5 c/ |$ f! 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) - o; W) F! ^# b+ t- i
set k (k + 1)
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5 i" j* I8 A) P3 d( ?6 oset [local-reputation] of myself (local)
6 h- i: X5 W3 p, l) aend5 y. a7 W, Y3 R' Y, y
0 {2 ?7 h/ s9 o6 w) [4 H: A
to update-neighbor-total" `" z1 m' x) _
* Y' g3 p, Q) o0 m' ]: C9 I1 xif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 {6 k6 G4 ~1 x! I
6 P: `/ K# j( r, H' V; c5 I, H |. P. v1 C1 @8 k0 N% H
end% |7 m' |9 @, Q5 b8 |2 Z5 M2 `
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to update-credibility-ijl
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0 u8 t" c" v( m8 c$ b% s0 ^;;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。/ x/ R2 w6 U$ R! C+ n+ {) |' l
let l 0
?2 x, N6 P, W, O/ lwhile[ l < people ]5 S$ U& Z { r- 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
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/ h4 `+ x. I' N5 Alet trade-record-one-j-l-len length item l ([trade-record-all] of customer)0 j7 O' K3 R* Z0 |9 Z2 G/ }. a9 f
if (trade-record-one-j-l-len > 3)$ ^' ?) }4 D* V- F; ?% z* C* [
[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- K2 T7 U0 |) ^: @) w
let i 39 l/ `; y; B( k" X
let sum-time 0
) O1 W; ]% M% u$ |% j+ twhile[i < trade-record-one-len]' [: G# b3 n- C1 [/ r- m
[
8 F8 p f! ? {4 h; m, Nset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 W7 V/ }/ c" S' t
set i
! {# n, y2 C7 p9 E. D2 L. ]$ V( i + 1)( Q9 u* D' b$ m7 n( O% \, H
]$ n! T3 p; |" t- {
let credibility-i-j-l 0! s8 t6 a/ K. v& ~" i
;;i评价(j对jl的评价): h& Z; h5 ^! P1 l; w
let j 3
! G. }/ I- W, ^let k 4- k+ t( g& L5 ~3 r8 x: Z# D
while[j < trade-record-one-len]
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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
5 _9 B1 k* X* V3 h3 J! V- mset 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)9 j( r, [3 {' g
set j. z5 c% Z8 ~. i9 U; w9 B. R
( j + 1)
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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 ))1 z: U% ^% n5 r; K
2 i! _) g& g; u) y+ [/ z
; t: \6 ^: ^5 D* Q- t1 [* t/ slet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
b1 @( Y( o% N0 b3 s& F;;及时更新i对l的评价质量的评价
0 \* O% F* t" g; Oset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
9 Z- a8 D9 `' f7 U B% Iset l (l + 1)0 G6 U( @7 C) o2 R$ y
]
2 ^5 D6 |$ o# a5 Q7 D" zend9 |7 N, U' {; H. J& W
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to update-credibility-list
$ P5 G; m m) {9 g* _* ilet i 0# ^4 |1 I n% D4 v' Z
while[i < people]: k9 ]& h" p" l+ X
[$ J* }9 ]: u4 c6 \/ i4 w% X) \
let j 00 n' q* _1 [$ K, R
let note 0. L7 G/ Y+ {1 e7 ?
let k 0 a7 D# I+ G* g* n
;;计作出过评价的邻居节点的数目
& j2 ]' H- X* Q+ Fwhile[j < people]
5 O0 t+ m, i- X- ]2 Z[. P- ?1 l8 ?" h( R$ m3 H/ K# U
if (item j( [credibility] of turtle (i + 1)) != -1)8 }7 B; Q6 f# a( i( b I& @
;;判断是否给本turtle的评价质量做出过评价的节点* R3 D4 B$ M' e
[set note (note + item j ([credibility]of turtle (i + 1))): j% d+ E/ q1 W7 X# q) w2 I g
;;*(exp (-(people - 2)))/(people - 2))]% b8 T8 X$ M& g) Q- J) t" M
set k (k + 1)
8 K. \$ y- r5 h( A& v]" `9 s& v+ L {# ~: t( @- ?* q: m
set j (j + 1)1 _7 R! E! l- m4 ^
]
3 \, |+ B: C3 N; lset note (note *(exp (- (1 / k)))/ k)5 Y+ u$ h/ _1 L* b0 ^1 f& Q, e
set credibility-list (replace-item i credibility-list note)9 c4 r% L" {/ z3 M
set i (i + 1)1 `. ~2 Q1 i2 M0 t4 B: K
]' Z8 W. ]6 l9 q* Z1 H+ q: A, e9 d
end
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to update-global-reputation-list
) K5 L; \# z% x0 m& @9 R! ~let j 0
q+ k/ C5 l/ N1 k, dwhile[j < people]
2 Q8 C: L! v4 b[
* z& m: P8 W: ]let new 0
( E" E$ n9 y4 o4 C* p;;暂存新的一个全局声誉5 K+ @3 d( z: b$ m8 I
let i 0
) J' G N$ \# y$ S! |7 P9 [let sum-money 06 P, C6 t2 k, g5 |' P
let credibility-money 0$ w. c4 O% \3 f% H& B$ E
while [i < people]4 G8 K; i- |- W9 ~
[' j& d0 n' w2 L! s% T: A' z5 }
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))): O& U0 v$ K4 s6 W3 E% @, {
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
2 G4 h( p: k5 w1 b7 n8 hset i (i + 1)+ F, D9 q- s6 J4 H8 ]
]
- d- V/ `% _, N5 ^# dlet k 00 {; G1 E( S6 A( h3 P2 l! z
let new1 03 y$ o/ c' s0 g' W
while [k < people]. a+ R5 }3 |& q8 A: S
[3 ]5 E m/ N' ^7 q! L; h
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): d# G1 a# y7 H2 {
set k (k + 1)
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0 f' q- _' q4 ?. P7 b: E+ P8 G# n% Mset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) n& P+ c4 L. Uset global-reputation-list (replace-item j global-reputation-list new)4 l: B+ ^7 O! d! b. }6 B/ G, h
set j (j + 1)
; g1 X7 M: k* w) k% Q]% O* m& w, H9 B) k1 O, Y& n
end% Q9 }! _. L8 U* Q% H, j, R
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to get-color
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set color blue1 ^3 I* C1 W# T8 P W$ T; l, d. _
end# o, |+ F1 ~3 G9 z( M2 _
( S, ]- Z' w/ O8 Z$ v: Sto poll-class& J7 K u) F1 t) Y5 ~# [
end7 D Y6 h9 Q4 z9 v9 F1 Q/ E
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to setup-plot1
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3 Y% Y, Y' R2 y1 W h& gset-current-plot "Trends-of-Local-reputation"' e- u- F3 W- P/ I9 ~$ v5 c
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set-plot-x-range 0 xmax9 g: d1 Q" G$ x' Q! H' z
/ Y4 m9 s/ ]& Qset-plot-y-range 0.0 ymax
; V; l2 \( Y b, N' x3 Y4 Cend
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E% ]4 v; a/ @ G% b; ?to setup-plot2
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set-current-plot "Trends-of-global-reputation"" Y% h( M5 }# x
; |' ]6 w8 I1 b+ v- \/ m. K/ F# ?* K5 O
set-plot-x-range 0 xmax2 W; P) i5 h4 P9 G6 q
7 y- ]* b; _" Q+ B# A/ K& u% @
set-plot-y-range 0.0 ymax# m- ?0 E+ q! Y5 Y
end9 y! }! D+ m( {
' e* }' L" ~5 y4 Qto setup-plot33 e: N8 }9 z; |& J/ z! q0 }
2 {% n- x4 M* |; t( L" x9 y0 r1 fset-current-plot "Trends-of-credibility"# y# j: ?) k' ?; m
" I$ ]3 ]& S9 @( B
set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax" |4 i* T( a+ i
end; Z$ U+ f6 @7 {0 J. A# W, A1 V4 P
2 Z' t. p# e( D& w+ l( e; tto do-plots
( H. {" @# `/ o; f/ Z9 o# o! oset-current-plot "Trends-of-Local-reputation"7 U3 n& v8 j2 H3 w
set-current-plot-pen "Honest service"( d( J6 t0 x7 L2 U' |; {
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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