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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
? I7 B* \8 F$ Y1 qglobals[
' a' o* W1 N% h5 _6 lxmax
! {/ \0 K% }8 k( N( t/ E1 L$ Wymax
5 {6 y4 d+ V$ x1 |* m4 i n' c& ~' hglobal-reputation-list0 M L7 {4 m/ }! ]
0 S; Q# m6 H0 _2 U, S! p$ E
;;每一个turtle的全局声誉都存在此LIST中
* F) D4 e; p4 p2 y B* f) y: tcredibility-list7 J$ }/ O$ |" b4 [8 v/ V0 p; r" h
;;每一个turtle的评价可信度
& a$ m/ I' T9 ihonest-service
0 T# |) n8 l0 `. j$ N. B: I! |unhonest-service( ]0 E4 J( A- X4 S) Z
oscillation
Z% A4 o# o' g$ F2 R0 grand-dynamic
- D) T1 X- |& I" b]$ U2 M" @- p7 I7 ]( w% R7 j
$ j( c+ O: |! ]) |% tturtles-own[' q0 k: t" I+ v) a5 G( n
trade-record-all
, L% }% x% N$ [;;a list of lists,由trade-record-one组成
8 C2 |4 B0 o0 x- btrade-record-one
2 f+ E; ^# v5 d& v+ x' b- |;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
: M z8 t& t% N$ g/ k
4 b) v2 J- }% X;;[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]]' w7 N# b, k' d! [
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]% A# e/ U N" ?0 U4 ]6 L$ 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
1 _4 G+ u1 x5 a" }0 L+ pneighbor-total) N' n! S, N* _; [
;;记录该turtle的邻居节点的数目
% p* C& h( x* ?& _. ftrade-time8 j+ Y1 ~% B& y# V
;;当前发生交易的turtle的交易时间8 m$ D u9 N5 W
appraise-give
+ `* K& ^; s. M) m* r! V6 l4 f;;当前发生交易时给出的评价1 m0 q s5 h1 K2 @! ^& B7 m$ p
appraise-receive* r6 ?% T* U4 P4 _
;;当前发生交易时收到的评价# k% O- a/ N) v9 E1 r8 ]+ E+ w+ a
appraise-time) J. h5 d2 s5 T, l
;;当前发生交易时的评价时间- e2 o+ c7 Q; w7 |0 l7 V
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
7 b' c* B! x Z4 |" ]9 z6 |trade-times-total! _9 o( ]6 p6 l# O( I0 Y* C
;;与当前turtle的交易总次数- y9 u g/ J- J" k; g! |8 E( t
trade-money-total
) u- g# E& i* k" ?9 h;;与当前turtle的交易总金额
9 d& W0 a' e( f( g: D- vlocal-reputation( {# ~3 |' ^5 e- i b+ F
global-reputation! J$ i& ]4 N, B! I
credibility9 f( E2 W1 N. N
;;评价可信度,每次交易后都需要更新
. E. X$ {( `! dcredibility-all
1 a. |" z- X! i' Z9 e;;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9 h# {' O2 D) a6 _6 v$ z
k: F: m$ e l2 M;;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
9 q4 B% Y4 p, M. L- u. y9 qcredibility-one
/ y/ n* G1 s! C) G1 ^' Q. w3 P e;;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6 N; [* E& i$ d0 X4 [& u
global-proportion
) D7 `/ e3 D2 E3 O0 ~2 T% Q) m' ?customer+ x5 z9 p# j; f1 L# j
customer-no
* X0 Q6 Q, `' [9 u9 qtrust-ok' P6 A( V4 Y }0 a! ]0 f
trade-record-one-len;;trade-record-one的长度
' d% ?. ]4 }% T+ \: l]
9 o# ~8 C" Z: u2 y1 \0 a& b5 }9 D7 L+ K* q5 V5 L6 @* v
;;setup procedure
9 f, V0 a" I8 Z2 P" r/ E$ }4 n7 j5 b# P
to setup# k. T9 p/ r4 @8 i! x- y! L4 t
* Z% w4 h' Q1 yca8 c8 `; q) F0 E/ d% ?
b# Q* j; A; i9 j9 X
initialize-settings9 W. L) g$ t. \5 c/ Q! F0 J6 U
5 o, l t% C0 F e) X4 ]
crt people [setup-turtles]
5 l! e$ Z3 s9 M5 a6 [/ _4 W/ e6 A9 h6 i( l5 x7 V! |
reset-timer$ e4 _. E. I4 n2 E& D
3 c9 v, g. Q4 Q4 k" _! upoll-class
3 ^$ e/ ^& a7 Y' L# M' R* a2 C) w, H2 Q* M6 e: {4 V! X5 Q5 | i) Y
setup-plots
$ L' j% \0 A$ z. l9 {: ?( y2 [- _: Q" i5 `/ A( {
do-plots
! x8 X) ]: g( w- P8 f5 m/ R* |$ qend
9 Q: @$ C3 G5 ?4 n9 a4 e4 x* l" X9 z e' }: |9 i& |
to initialize-settings$ y6 z' y) a. @3 K! i1 Q, d3 A
$ t' C* q1 p% a9 e% E% N1 N
set global-reputation-list []
; B- ]2 {4 G$ \3 Z6 |
4 k4 o. N z- L, N$ p1 G, W' eset credibility-list n-values people [0.5]2 p) W) Y. I! r- e+ f& B, c2 G
# u! t: K% l& r& r
set honest-service 0
2 F7 A: `" I" L! p3 F; V
0 N- S4 j( y4 W: Qset unhonest-service 0$ Z) l7 B. p) l. }5 I$ q* R- E' n
$ T, u" k4 h# @6 [
set oscillation 0
" K) ?0 y1 @! I* F6 R1 C3 W3 }6 X( C4 _2 r$ |
set rand-dynamic 0' X) \: r6 z" h4 w1 ?$ h
end( Q9 W6 w8 E0 s7 h* _' Z
# X8 Z: I9 }2 Z( A8 v4 h
to setup-turtles ! G" C( V( @7 Z, X0 C/ n \
set shape "person"- \5 g8 V" A; f/ z0 R4 j
setxy random-xcor random-ycor
, X4 J" Z/ z V& H* D) H$ G. Tset trade-record-one []
% t- l3 `" i. D j( x. p0 A5 K8 m6 g! ^
set trade-record-all n-values people [(list (? + 1) 0 0)] 1 O) W/ J. u7 p- B' k
# n& Z! @4 s4 S! c/ tset trade-record-current []
, z+ u7 [3 u) E$ oset credibility-receive []
; p) f1 a/ ~$ z* \6 Q m! Mset local-reputation 0.5
) h/ Q4 _8 Y- Bset neighbor-total 0 s0 Q4 M( G m8 e
set trade-times-total 08 k! }+ h. w8 Y! D& {* g4 M: [
set trade-money-total 0) @- A! s, C, r; ?0 U
set customer nobody. G8 G- I& l: j4 e, p
set credibility-all n-values people [creat-credibility]8 s$ ]* w. \7 D( F
set credibility n-values people [-1]- d m$ k4 I' r$ [0 a: ~
get-color
( m [7 c, ~% }, g9 @* }5 t {+ x6 k! ]" [9 p
end! X& F1 D0 n+ E4 {% [
7 {; s% S' [" g8 Y5 e
to-report creat-credibility
8 i' q% q7 ^" Y8 X- Mreport n-values people [0.5]
, t- }7 d) `. n3 {7 Mend- e2 L2 P3 A/ E: j
c, u7 L! V |1 P1 A* T0 M0 Fto setup-plots/ [' J+ E( k% y, j
0 A$ y+ K) b1 V: A% {7 @/ V7 _set xmax 30
0 f) v z* X7 O; n( R6 o' K+ L% O1 A6 x
set ymax 1.0( _6 S4 l/ N8 D" v) {0 F
: h" w _8 l |! v, H; I8 Jclear-all-plots
0 B: z; i' B2 }" c( V1 P, e, G
" J- a7 A+ y1 r. Y2 p1 qsetup-plot1
2 W+ G' z; B* c& b# d- z, h
4 F' \ c1 h. I6 H9 q2 ^" e- qsetup-plot2
& @3 T( X0 s# E; g
) u) l4 {/ g- M3 ]# [setup-plot3
1 I# Z7 B6 n. p( p8 a9 A9 v( o* Oend6 I* g. g# Y6 S
6 q3 [& }; K2 R Q
;;run time procedures' X" |) [# n+ I' @6 F
$ r; U3 l$ i6 y a* B9 Oto go
; J' G" G# T/ G7 D, }+ e
' s- Z9 n% V6 W6 x& Iask turtles [do-business]
) t/ M+ o9 F3 v4 Y! tend
7 N) ~# ^8 V6 r
: V) G8 w, E/ B) N- b3 _to do-business ( P/ `+ d, _2 `* {2 v# e
5 W e: {2 q' t4 C
% k2 \, ]- j& |6 D, u4 o
rt random 360
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. u6 H0 `2 |1 }; V/ v6 g Cfd 1
2 Q" m) ]9 p1 G, Q" _6 T/ r% C# @5 C# y0 V! {
ifelse(other turtles-here != nobody)[6 p+ d. p! M3 u4 X* ?% m5 ?! ?
H! @% }! P7 c& S3 m2 n0 P, h' Rset customer one-of other turtles-here
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. L: h8 A5 a* H9 _9 J5 J, n;; set [customer] of customer myself& F/ y, d6 \9 n2 Q' m
. f5 M" D- A6 ?( _+ m
set [trade-record-one] of self item (([who] of customer) - 1)
" {, Q, g& P( J7 _% l6 E: k e[trade-record-all]of self
, K: t' K$ J. w+ H" ^1 };;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
/ M* m* ?: g; f" [5 a& e; r5 S7 L8 X4 w
set [trade-record-one] of customer item (([who] of self) - 1)) e$ q) v0 \6 z+ g$ A" t
[trade-record-all]of customer# J- o, {9 A: Y8 o: ?. h. [
) e3 @1 W# C; Y# E
set [trade-record-one-len] of self length [trade-record-one] of self
; T3 I" r' d1 `6 R8 t9 Y" g
7 t+ e+ x% O z6 K7 n% [" }1 p6 R$ e/ xset trade-record-current( list (timer) (random money-upper-limit))
% Q0 t- W( Q+ U9 ]2 e
7 O! }/ D$ c T3 c# _9 Wask self [do-trust]; _) r3 I0 a2 m: I
;;先求i对j的信任度
1 n! T. {5 {2 V; w+ g
1 \: F+ u( k, U e) G' Vif ([trust-ok] of self)
# E$ Z; p9 z* [;;根据i对j的信任度来决定是否与j进行交易[
' `3 j4 G3 E; b6 A# Z% e3 Rask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself7 ]+ L" E* J4 a# k0 W
$ c& u1 T) M6 x/ W- L; _[
, ]0 w% B1 k" K6 J$ F5 d% ]% F5 `! I. L, U' a& G# c
do-trade
8 U! V% w, J" A+ t2 N' ^. F
7 P" o4 h/ r: ]2 _update-credibility-ijl
) h- H9 Q' C$ i# Z9 O, o% k
6 c g5 N% y. r% M* K5 Q3 O/ Oupdate-credibility-list
$ h l0 i$ l; k" @: F {
+ V7 f7 O5 z% n5 Y" @* d
8 L4 L7 F) c2 C4 ~2 O8 J/ D' @update-global-reputation-list* s" \8 r; c2 z, j- Y- k n
7 }" m9 |& i% r5 H8 l
poll-class1 V8 }; x Z/ F' F" H- V. D
- T" [9 G5 F S- A D
get-color
7 |* T- {+ `$ r* }: J% d" s
8 n) V9 X2 Z: m$ E6 P5 ?]]
# G \ u, ]( z& d) i* S/ e8 x x
: Q- _4 r- v$ v: _: l;;如果所得的信任度满足条件,则进行交易
6 Q- y( t; L( m; Y5 Y* ?( {2 ?( P: S5 c- m" `( X. G; G6 @
[
+ D5 L/ D( b- O/ L0 s, {5 \" k' o4 T* Q# w w) g. D6 Q4 ]! r
rt random 360
! C7 r3 X& q+ ^( S( G
6 c5 R1 y0 }0 z f2 E4 bfd 1
! ?% A$ a9 Y# i8 h* F6 r v6 C$ ~' D" n% b* n
]
) c# x) o: M3 E/ p# ?: x
0 r W5 g& z+ m( Y# N5 m! a6 l, b; \end
4 k ^1 j8 a. ~1 G
- Y, [. K3 @9 ito do-trust 2 y& D T8 j" j0 W( S
set trust-ok False$ [, G, R$ g1 J0 {
$ X3 `: @" X5 l" R6 H5 S. M- W E
let max-trade-times 0
+ \: f/ I; N: oforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]9 O6 C: i. } s& P S
let max-trade-money 0( h+ e) L* e& F m1 p0 ]
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! A2 i: x6 W/ W4 u# N4 y7 plet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))9 ^6 G m' a4 U4 s, M( E
1 p4 ?, ^; u- ^
; g* ]' J+ k8 _" k# V& d! ?/ C
get-global-proportion
0 S6 F: q' v2 A( s* M/ Plet trust-value3 }4 k: K9 l. K$ S, s; V& 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)
% V; c# O; G; h; iif(trust-value > trade-trust-value)6 Q, S9 M ]) i! q/ ]& l+ C: T. @& U
[set trust-ok true]. l2 R, R5 m1 h, z4 x
end) b2 b& A. i2 l5 w
t- x: j$ x4 p) Q- v5 l8 `
to get-global-proportion
8 Y/ O) s; S- l/ i; Sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). A1 C" Z8 \: Q. ^/ \5 x" |0 }3 o# X
[set global-proportion 0]' t. U; f7 R2 @0 l0 F# T; f9 C
[let i 01 X, J5 }8 ] }7 i
let sum-money 0
" D- R: p5 D- f6 F" r Uwhile[ i < people]
. n5 x0 s% X- O) s$ R[( d+ s6 W* m9 o# j& q: M# v
if( length (item i
* [2 P, j& r2 r j* K/ j[trade-record-all] of customer) > 3 )- J2 R! A/ l* h
[
* S* f( S4 l6 F# Z) Q) B- wset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
% ]# k) }/ f9 u# c) i]5 i: ^6 ~+ T0 L' p
]
' Z1 p/ v i4 u# o/ G6 y1 dlet j 0
/ O' L% \) e$ O) U! tlet note 05 U+ O# i: z" `9 N
while[ j < people], Q' }6 g* ^6 w9 I
[
& V: G7 `; n; F$ ]if( length (item i
2 f& h9 L/ |4 Y8 J4 y( Q& D[trade-record-all] of customer) > 3 )& _+ f/ A+ D! \+ z' R+ `4 R) \
[3 \, P; s* [$ f& N J
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
; p5 }2 ]) q7 I8 ?: c# b% R[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
% I, q$ `5 h( Y. x% z- A `) m[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]# q# [. I. T Z9 d, o7 P) {1 C8 X
], O7 X$ V- H% h1 c; s6 }
]
8 F, b+ @- X2 D) e4 [7 zset global-proportion note
( o; ^1 e1 f0 O( `! \) G]
5 N+ Q- S% ?( E0 uend5 y& g$ q1 w- T: E% E( i
[! n$ }$ h, Z; A7 j+ J) Hto do-trade
0 D9 F: n) Q1 _$ O- L6 o- F;;这个过程实际上是给双方作出评价的过程
1 [$ w1 `9 D! ]: F& u9 _set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价6 C0 B* [2 F5 V
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
0 H' y h D; D1 }, |set trade-record-current lput(timer) trade-record-current2 {9 S) U! g! v8 j/ Y5 o- }
;;评价时间
1 r4 C/ _8 ~' i# L7 U+ U8 A9 Vask myself [
~9 L; p4 L' A# Pupdate-local-reputation, t/ E/ }9 U7 _. x% V
set trade-record-current lput([local-reputation] of myself) trade-record-current
! U: E. d3 }) b! y/ n g+ T, u]2 c$ S+ N' ~6 z3 s7 B* K% D8 b
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself% Y$ K3 {/ E8 |* p2 z
;;将此次交易的记录加入到trade-record-one中3 b" e' U2 s- O, f4 u. {
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
+ }# ~2 W4 \2 xlet note (item 2 trade-record-current )
; |& O; t* B9 Z! X$ L( Q! \set trade-record-current
5 \3 U; q$ L. g8 B8 @+ i3 C(replace-item 2 trade-record-current (item 3 trade-record-current))2 \0 n1 J1 T% u/ {- w; P
set trade-record-current
3 v4 s4 N; j/ R: w( O" c/ r(replace-item 3 trade-record-current note)' X" E) {" h0 v/ q: H. @$ T
, ]8 h, |! ?% L8 }3 L" x
. w! H3 ^- u" S& ?ask customer [
, N; N! E. Z1 T, K3 ]8 ]update-local-reputation0 C7 n/ i! J4 g2 _
set trade-record-current6 ~1 W6 M, s; g
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + m% I4 y" W7 ^" q6 B5 W& P* K
]
* o x6 F# h0 R* y, D8 g8 q) y1 R6 h, V' `7 e
0 H2 B9 j; p2 v$ j5 y5 \
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ Y& M4 U, s" _% n5 _# i3 b5 \. W" r; b8 I5 W
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))$ Z1 U/ Y/ x( E
;;将此次交易的记录加入到customer的trade-record-all中' G2 Z3 f8 r5 v( p* K; j9 h
end
2 X" {5 d5 ?8 E
1 J& ]* G/ V' E' r8 u" L9 f% ?7 Qto update-local-reputation
) ]4 m4 y% w3 ?* g7 h6 M y: L7 fset [trade-record-one-len] of myself length [trade-record-one] of myself0 f. B) W w/ I
0 F0 f* }* L9 f9 _0 f; U
1 ]: v4 a9 s2 i6 g2 e+ t5 N;;if [trade-record-one-len] of myself > 3
# M. Q$ [0 I9 D( ]3 a6 w K( I7 k: gupdate-neighbor-total
. |) l' @0 y# S: n; O;;更新邻居节点的数目,在此进行
4 x8 o& B2 p7 ~0 }) Qlet i 3! m0 W1 r) i5 ?
let sum-time 0
! e, u5 l' X8 Z; O9 g+ O' h2 H6 F' {while[i < [trade-record-one-len] of myself]; K2 b" h) i2 ^1 M
[- _5 i! I9 e7 g" m$ ]* a* |9 o$ W
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
3 X" G9 q& h6 X+ y& Cset i; F; A1 |! s6 I
( i + 1)
; g7 u# d# ]- C1 \1 R/ x7 A5 m& d], I8 ~) c$ F: j) b* {
let j 3
% n3 Z3 o# x0 qlet sum-money 0; y$ a m* u' ]# F3 n/ [' ~ \
while[j < [trade-record-one-len] of myself]% H- j! U3 j, g7 V
[
- k/ G& \- f7 t- `5 I0 @: |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)( ]! V: b h$ n9 q3 {9 q% ^
set j E$ h& S; N1 z. x$ D: }
( j + 1)' k" o5 c$ o! t+ I# Q8 E1 k& t
]% P' j: h" e1 d! V) I
let k 3
4 _+ k( t' N4 w% dlet power 0
0 J5 q! s1 S4 `; {0 ? Klet local 07 D5 ~2 w3 P7 Y
while [k <[trade-record-one-len] of myself]
! B, m }" F- J[
6 Z* D+ _ ~" R& U% J& a) \4 nset 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)
+ P9 o: U. h6 q6 ]" @& Y/ L5 wset k (k + 1)
; q/ s3 d4 l5 @" M; g% n4 ~" P ?]
, _3 i, N: P1 c' w( e* Zset [local-reputation] of myself (local) \" }) o( T+ c, o! f
end3 T% u6 C6 u3 R% i8 |
9 `: P0 X7 n/ A( dto update-neighbor-total
) d: |. X4 ? t. ^4 R) t! z8 Q- X( w
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. G' L9 E" I* r+ w& v# v. ~4 ]) l
2 B6 ?' r! x; g9 S# t' O$ E% C) y0 ]$ [
end! L) V7 B" m5 u* N& ~% G% Z
, ]1 L5 C9 N( ?9 \; ^
to update-credibility-ijl / a3 b. x* W V$ u
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;;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。
: I; T* x/ H$ s& r6 flet l 07 T: J A: i) W$ K+ u: a3 w
while[ l < people ]
6 d3 _. F- y9 n4 n5 };;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)
# |. K( v6 i! B2 H- Xif (trade-record-one-j-l-len > 3)
/ J+ q7 b/ E2 L, n* ]5 N[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
* H$ H8 l4 O7 C) a, p5 Clet i 3' L, h+ [. N1 a3 n* k
let sum-time 0/ W5 f* m- |( X9 I6 C% X
while[i < trade-record-one-len]* H% {1 p- i4 T
[
( d5 Y1 _2 s" n6 g8 P5 @set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )& Q" D+ z' E7 r
set i
2 ^4 j% V" ?( x( m) d; L1 @( i + 1)
( p3 S! n+ |, d" o" W] x/ h1 P2 y! Y6 K
let credibility-i-j-l 09 C; Y; a K( g$ P) h: ]
;;i评价(j对jl的评价)1 k! X" g3 v/ F7 T1 c% D, B
let j 3
" I' K" f* B, b- B8 B& ]let k 4
H$ f' p) u+ G. h$ Cwhile[j < trade-record-one-len]
3 t& Q& u6 i& L! u6 O6 X[% p& A( M2 K/ 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 W1 h$ |; h, ~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)( X) \# M' S& J
set j6 i1 Z/ `4 w. Z: f2 N
( j + 1)
+ f0 R- c i3 D4 a& \! }, V' w]$ u* C5 s G- V9 F* }
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 ))
: r/ n" O9 v- b( y% z& M6 w, r" m1 k3 c8 x
! f3 z- a% v* l/ tlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
2 w5 C! D7 F+ ~ u) h$ F( o+ q;;及时更新i对l的评价质量的评价
2 {1 T1 q% f" L+ P! eset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]( s; B. {/ q/ ?) A* V% u
set l (l + 1)
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end
3 ]8 P+ Q& |, N% q' Y' A, g0 Q! _+ q( x% J5 r
to update-credibility-list- E" y2 c2 U9 P) m/ a
let i 0
- \/ G s2 K$ D4 I( a% bwhile[i < people]: _/ G4 ^' E1 u4 E" `- A; D: A1 a4 I. H. w
[
6 O; Q' m0 |1 S$ r$ dlet j 0# L' B6 ~: E& D$ K3 b/ V6 @% s
let note 0
& O G* h' X4 J7 ulet k 0" L* x9 J& _4 {4 G) x
;;计作出过评价的邻居节点的数目3 w Q) b Z; K
while[j < people]
( N: K, `1 p' _/ L" q& U1 w[0 ]- |+ w2 `$ A W- T9 q7 N( e
if (item j( [credibility] of turtle (i + 1)) != -1)) l+ n; ~! @* k* S
;;判断是否给本turtle的评价质量做出过评价的节点
1 N5 C4 ^. f3 h! l[set note (note + item j ([credibility]of turtle (i + 1)))
7 Q8 ]( p* }& V# i, n W;;*(exp (-(people - 2)))/(people - 2))]5 R" O7 @( w5 ^
set k (k + 1)
# [2 f( I- }% B; c" g: r. H]
% x' N9 ?7 ?& B4 {set j (j + 1)
* w% Z( h7 @' T! @" K Y]# ]& p& y s+ d" z8 u. Z
set note (note *(exp (- (1 / k)))/ k)
9 I; S* C, d. e/ S3 m# E; k) A. cset credibility-list (replace-item i credibility-list note)
1 K! M* [! U+ H7 p8 @ yset i (i + 1)
& W6 ]: i$ |4 F$ I( J4 E]
, q n- ~5 {$ C2 q# o! H; [end
; C- a+ j% r% k( X. S+ ]# \# u. T
* F2 p0 S9 f- p5 l0 T7 hto update-global-reputation-list5 ?5 V0 W0 {* t; S) I
let j 0; Q5 C8 h& \: q8 U" R. ?
while[j < people]0 a/ K: x/ y. r
[
1 d" p" x l: [4 u P8 d m& hlet new 09 C8 o4 D. M( m& d: }
;;暂存新的一个全局声誉
3 u" p% N6 U. o3 blet i 0+ y( _* I# s1 i$ }
let sum-money 0
8 E" A! _ E/ s" M- tlet credibility-money 01 }, z7 z4 u# w' h! z9 ]
while [i < people]: o- n. n" q& g+ U2 @
[
3 y; x( l4 P7 C5 U# p. |set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
( B$ |+ l2 o2 Q) Vset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
( C+ z% ?! X+ V0 U& X9 r3 F Mset i (i + 1)! A* w8 A3 p9 b1 U9 M1 j9 U
]* U3 h; o7 a1 n: ?/ v
let k 0
: q, J$ p' B u' }( ^# z- [: N+ olet new1 0
D* I5 `3 s9 l# \& [" U' Fwhile [k < people]
6 v/ T9 R3 X3 G+ d7 a9 B6 U[
7 m& X/ e6 `' ]1 H, J G2 y: Kset 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)
* i% K: E8 ~5 r0 E+ s& z X% ?; _set k (k + 1)
% K! ~3 w- G6 K+ x+ a& r]% k0 ~1 b2 R1 P( @
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
; E+ }0 Z7 y% ?. Nset global-reputation-list (replace-item j global-reputation-list new)
4 [) s+ ?' ^) F9 e8 R s$ Nset j (j + 1)
8 r# B9 m9 x4 J, t$ P- K]
" r. o- y: \" l' R* send
( @8 ^4 X! R g
3 \% X+ }) H6 N6 C# q) D* Z
+ L# m# l( q, f
5 A8 [+ g5 c" c9 Sto get-color& R9 X2 M. K5 r! |) t
( s- j/ J6 _; D5 Y$ j8 L
set color blue: p6 ?. G/ P; y1 L0 c
end
; F4 A$ R; y% H2 @1 Z' L7 c& _5 i5 Z
to poll-class
9 f; K+ {5 B7 g6 O, Uend
' k) i4 h- }! q& o4 e
2 C5 a: w& C5 w) R. c+ Nto setup-plot1
. {) G0 d( I' h- o) R! E$ G i. l$ @. d J4 c0 y
set-current-plot "Trends-of-Local-reputation"( W7 c) m# k: y2 M# S! U, k
! {: q$ N' i2 g+ W6 z9 vset-plot-x-range 0 xmax! ~1 }4 [% c! h. s* o0 T
9 A& q2 O* `0 o/ Q3 L, y7 ~
set-plot-y-range 0.0 ymax
0 \% U# a) ]' B: Xend
3 E6 q$ e8 W0 B/ N- V- D7 B7 g/ M! J5 Q3 ~
to setup-plot2
: @( W" i/ U y7 G
x' T0 l' e5 Q7 n" p7 o, F! zset-current-plot "Trends-of-global-reputation"
6 E- h4 ^0 @! d* o6 W3 i7 H( h) a) c* j. C
set-plot-x-range 0 xmax/ e" _( \' z, Z* U3 F. W& K
$ O; E) l8 f8 D) x2 T( `set-plot-y-range 0.0 ymax
) [: d( w8 x* U' ?" f, }end2 y; x8 q) d: j% Y; _3 K/ e* R
& N o, h2 }% d. t" {8 a O9 C
to setup-plot3
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set-current-plot "Trends-of-credibility"$ l( s1 X4 d( ~; D
O2 q$ N- v p' W$ X- B
set-plot-x-range 0 xmax% Q0 a" M* |6 q! n" B5 k) I, J
5 t' J+ q1 G7 O4 [- b4 U' g Z
set-plot-y-range 0.0 ymax8 c* D* W5 `! d* ]0 x) s
end0 b: v U. q( ^$ T
3 Z* b/ `) C. Q; h/ _$ i: N% U
to do-plots4 t( v# i5 D3 p7 a3 a4 R% H6 \
set-current-plot "Trends-of-Local-reputation"
. u! E# P/ n* b% x9 C, K0 S8 N yset-current-plot-pen "Honest service"
. m/ J# f/ o* E6 _end$ ^$ {# z I. _& s2 `. W
: e$ N5 L* U* R) x
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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