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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' A9 G" J3 f; B1 {* f8 m; ?, C9 j
globals[9 p* z- n% H+ S5 P; R: T3 O
xmax1 T6 ]. P; x2 d# u6 G0 a
ymax# _, p" J4 g: ^$ q
global-reputation-list; f: s) I9 }/ \& w8 n/ U
) N# q- L) p) {
;;每一个turtle的全局声誉都存在此LIST中5 }4 s. S' I9 R8 x4 x4 @
credibility-list. _0 O4 h8 U+ g- L
;;每一个turtle的评价可信度7 d8 v/ T& \( J3 W: P I
honest-service
1 `+ u) i7 q1 [9 c1 D3 ~unhonest-service7 w! r7 T- t$ i. f; T
oscillation' I: A) r+ U- S( ^1 F
rand-dynamic8 g! Z' u. k: {1 d7 ?
]
6 r# B5 y! K6 m' T6 l
' |" G" p- O. ?7 A- m# wturtles-own[; J+ o1 n' c1 y! e9 c
trade-record-all0 n& e1 d4 b/ d2 d( T; v
;;a list of lists,由trade-record-one组成
7 O* s7 E+ }& l7 H4 ktrade-record-one3 q! g, M: i, T
;;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 v; S+ d2 D! R8 K
+ X- E! u* U( {% c7 n" e; o3 L;;[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 z" I% U' Y* f4 `8 I' 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]8 c, y0 d& S7 l2 T
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
, T3 U0 n% o/ Y3 \; r* E! y- Gneighbor-total! Y8 z: q% q2 G0 n* A, {
;;记录该turtle的邻居节点的数目
" e! ^8 y# ? v! E- x- y B$ h' Ttrade-time: _: X) I% Q2 ~5 p. [0 u6 i# |
;;当前发生交易的turtle的交易时间
8 \' i$ `. F+ iappraise-give
6 K) U' z1 ?: H$ |& t% B;;当前发生交易时给出的评价
J& S! k/ Q0 e1 g# cappraise-receive
0 h. I3 V/ F3 W/ `: y- x, j;;当前发生交易时收到的评价, w1 e& Q7 W7 V( {
appraise-time& A1 M) Z9 E' w' f' o; _
;;当前发生交易时的评价时间1 ]( D" e( R$ V, z' U! |
local-reputation-now;;此次交易后相对于对方turtle的局部声誉9 h5 J9 m% z5 h- ?- ?
trade-times-total
2 f( Y" t" B: b;;与当前turtle的交易总次数
6 Z v) j0 N2 e) _$ z, Z# rtrade-money-total0 e B) ?! l7 K* x+ I1 U4 A; ~
;;与当前turtle的交易总金额
4 @% V* y* D: F% l# h3 Plocal-reputation
6 q6 G5 ?- T0 [# v2 _, o9 o8 dglobal-reputation
8 h5 H" S2 G" g: C7 w A: G* ]6 Ecredibility1 X+ E7 d! C8 z! m
;;评价可信度,每次交易后都需要更新
7 P* t# J- N; L8 }) fcredibility-all% R' H5 `! B" J/ Y6 P1 Y
;;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" C. T8 |% }, e5 C
4 f8 r7 P H7 I2 v+ f) N
;;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 `% T0 ^. U4 x0 w
credibility-one
( U( {0 i/ k6 f;;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
7 h0 ?- D6 K" Wglobal-proportion
' F% k9 y2 h2 _5 {* mcustomer6 D- x4 {! s! F- r8 o6 F+ I9 _
customer-no* C9 _( m# L, L2 P3 ?5 ~6 U
trust-ok
2 A b: ^ T( J. A9 ^trade-record-one-len;;trade-record-one的长度
8 F* W; I, E7 }* s. j]
' H6 [. x/ F0 a2 h \$ D, E Q1 G7 i# v3 M- w0 [
;;setup procedure
% l9 s8 \9 I& V$ X
, `$ ~0 n1 R/ N+ I5 D3 P, \to setup% d: j' g% D X1 q3 _& o5 V
: p3 R& b& c0 T+ U/ w, Q- Vca
; O/ q: J. R* t. ~6 z
! G0 n; ^! p- [initialize-settings% n8 U1 H. D3 s. U# t3 n1 D3 i
4 Z( |6 b9 E/ bcrt people [setup-turtles]# U& y) g% i, q+ N7 r
0 ~) q2 ~3 U E9 Wreset-timer
. D$ c5 W9 _" c* `
0 C% u5 x6 S/ Hpoll-class
3 b7 Q' M. \: e; Q+ {5 N2 ~& E, R! B
setup-plots
8 E) b8 E4 B4 X3 t, @
" T# y' a1 {# g3 S `do-plots
% w& a& U' r" send& H' _, W3 C$ v! o$ T0 E
4 x0 S" ^# n% J8 A; g7 e. q- l2 Kto initialize-settings0 b" }4 @& {- W7 V* p' Q
8 |2 B- Q, r' Z& |set global-reputation-list []( [! k2 w/ D* ~0 y/ W7 _
, J2 c" |- H5 X# ]set credibility-list n-values people [0.5]' |7 z8 Y: z% K; U
, A% s6 [& o: r$ @, q
set honest-service 0' t* R8 {+ k+ e' J% |: d# h5 _* b
' i3 D% y* r! E, z+ d- ^; vset unhonest-service 0
" U( E: I% V% f) @5 Q2 l! f/ v* M3 |2 x$ g
set oscillation 0# I$ \5 ~4 x: g% y
8 K- H+ i- y2 sset rand-dynamic 03 L5 C; Q) s- \
end, T2 Q- x0 b I
5 r8 v) A7 v" }4 w8 _ |to setup-turtles 9 a' L5 O4 ^* [
set shape "person"
+ I2 f9 I O: p; Wsetxy random-xcor random-ycor
/ L! l1 y8 r% ^4 Mset trade-record-one []" |1 a$ @8 ]0 x1 B' C4 W' I
4 Q4 a4 {* ~% c/ o
set trade-record-all n-values people [(list (? + 1) 0 0)] - w H9 k' @% A2 E/ [& j3 f
: P! g _7 Q* o1 n' |; h- Q0 z7 uset trade-record-current []: m* x+ F6 l e& p/ ~( i
set credibility-receive []# Z3 y+ H; M& L9 q: ^/ _$ G
set local-reputation 0.5
X( W, N U; j5 y; rset neighbor-total 01 | H* q4 ]" Z3 t
set trade-times-total 03 z/ i# _% l8 V8 r! G0 }( d7 t! q
set trade-money-total 0
: m5 l3 J* R* B c: f6 cset customer nobody# T9 p' f' _2 ~9 X* e3 {5 f' n
set credibility-all n-values people [creat-credibility]
! \4 T5 g) n" U) lset credibility n-values people [-1]& D: G2 W4 G9 [5 @6 E. g
get-color" M, n" P9 T) @, \) t! ~
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end
* ^; l3 l. M0 v- G3 e x
4 x) k5 s' o( x! d" k- m8 lto-report creat-credibility. T3 n" o1 ^" e/ [
report n-values people [0.5]
% {, [$ w( s& g bend
7 J* d: t8 J6 K3 k
+ D1 c' V9 ^" o) k2 P: H8 g9 T2 |to setup-plots1 d' D/ a0 D6 x& P: P
! C! ^' ^7 h" W8 X/ N& b: W$ xset xmax 307 }1 t" P. X3 t2 Z
. F$ X+ m4 c6 t3 T/ N8 v, v6 b
set ymax 1.0: z6 k1 C7 ~: ^0 g
, x. Q, Q, U4 F6 P2 @clear-all-plots5 z! Q8 y5 |* H$ ~0 j
8 f. X# B1 Q/ f& d, J. R$ E6 {
setup-plot1
1 e! y9 b W2 I: w/ v/ X
9 G" P- ~8 x& f7 q: D* n) Lsetup-plot2
6 U) B( Z: r% i) O5 I2 K0 R: L7 e$ B d7 m9 z
setup-plot3
# m, v7 V9 w: jend) H8 k- L1 q+ E; [$ z0 r- k8 ^
" W/ m, ~% S/ w7 s& S+ Z
;;run time procedures
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; o/ v b- d( G9 G6 wto go1 u( G2 P5 W1 p, }, P( f+ v% x w
* O) P1 `" E1 n$ q: [# ^5 t" a
ask turtles [do-business]# j! D* @- b+ e, f( o9 [
end
4 z% i' z9 a/ `) U$ B
! L' ^( n& w8 U" Eto do-business
4 [1 b5 m) n% h; C2 x$ E$ Q/ B. f# g
# n# H3 g$ Z1 L$ Q8 mrt random 360. S$ m% m( b( W" M" G" j, t& y2 F" v# f
/ V: I; t2 k7 u8 ]
fd 1" D c# U, m F$ ]" B
$ A s, l7 g' w8 o" Q! O% |ifelse(other turtles-here != nobody)[
# K! d( M# g( }; q, H5 n4 I
$ b4 q5 A+ N- @! \/ vset customer one-of other turtles-here. ^& `" } G# C; A1 x; \
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;; set [customer] of customer myself. ?% h7 ]% o4 h& o) K& A8 K( j
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set [trade-record-one] of self item (([who] of customer) - 1)8 j+ k3 ^0 S& z
[trade-record-all]of self
+ a, t$ Z' p r' a" V* @* q4 x& \;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self' i j4 t, f/ a% ^# L
" _& h' N# O* H0 x+ E
set [trade-record-one] of customer item (([who] of self) - 1)
" j' ]9 }6 y) o( k[trade-record-all]of customer% U: X ?& q* a2 @% S
; x. p9 E" c B8 X
set [trade-record-one-len] of self length [trade-record-one] of self2 J8 k7 F3 {+ b3 v' Y" I; C7 O
0 t7 W+ \; { o3 Yset trade-record-current( list (timer) (random money-upper-limit))
1 ]7 Q. T" W4 n8 b. G
1 p6 m- q1 ~$ l2 @ask self [do-trust]9 S3 c0 R' f( ]% H8 z3 ^
;;先求i对j的信任度
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if ([trust-ok] of self)9 x0 G6 ^; F* A/ ]1 c
;;根据i对j的信任度来决定是否与j进行交易[, l* I: A" m5 z0 X3 [" O) u# {
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
. @) W% x/ M9 R) a! T7 d9 @' X# ]: C/ L& \0 }
[9 Y H/ J' A" C) S
b/ |4 s/ I5 ]1 s" V: k
do-trade
7 K4 s- U( O4 K" n" d' l
% W$ d2 w( B' Y% w! o' _update-credibility-ijl" q7 n" z" K9 Y Y7 l, J
# {# C! x0 J# K; f) T' oupdate-credibility-list
: z+ s' H) E& e" _* p1 F& F
9 S- x% M) J k# J4 l8 Y: m' i3 v9 n( K! _$ e
update-global-reputation-list
5 a( `' E: K$ ?" }9 o7 ^) d: g+ G0 g7 F- V9 u D, s
poll-class2 ^7 c' P6 c) p7 P8 A. A3 ~
$ N0 q8 A. W) E1 e
get-color2 A; I( D C' i( i4 e
4 B y0 \2 h7 n5 f9 M; ]& E
]]) F1 E. p5 w+ `2 }7 ^. b q: X
. H2 s- c" k% y( w) f7 {7 g X
;;如果所得的信任度满足条件,则进行交易( g& r4 d' x8 H+ t+ ~$ y
, g/ n$ V4 Z- `+ G2 v9 Z[
! P; f9 ?0 A! v% l
! _5 p4 t/ j5 w' L, C" Y5 F7 xrt random 360
4 ^! F. S& |# J$ Q- j8 Y/ B7 v8 T; J0 m3 t ~" Q& D! K9 P. `5 H
fd 1
& Z0 r" v0 N$ \) p/ W+ I2 Z- ~$ \3 C" i/ W) L7 ]
]
) `, G! x; s$ f' s, w3 E" u* v* Z4 _! |
end
# _2 _3 q4 f2 k7 o, O6 X
& Q5 T) Q e& e1 f' L% Ito do-trust ( A4 E7 Q' C7 @( E. B, Z7 I% R
set trust-ok False) i5 @( t: n& h+ V* t" }1 V
/ b& D7 p" f( |+ r9 {3 I% v3 u/ K& n+ p
let max-trade-times 08 M/ k$ v- C0 w9 \" d1 o0 O! r' x
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
4 ?" Q" m- j, t4 ~6 @7 i# t4 nlet max-trade-money 0
5 ~- ^" u! y$ W( U" Jforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 R/ S% ~( G" T/ E! r+ o% B
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% W- S# k3 a" l# |, T& O
7 q6 R9 Z1 B! A5 m- A( w! m4 h
/ D2 `. w/ k( F" H+ @; xget-global-proportion
* K/ g& k+ `3 d" W6 jlet trust-value
. f5 [ U( k( | R# Ilocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
) _6 c* Q% P O4 _if(trust-value > trade-trust-value)
; b1 l3 {/ b- a# _# y: g+ q. O. D[set trust-ok true]
5 y" [4 }# P; L, s& J! K/ i3 Cend. {, U2 a+ j k4 e- j* r
' o6 T8 z; U$ E! l8 z0 |; c& f1 O
to get-global-proportion/ {, n" l) I: I& n
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)9 s5 W9 x7 H8 r
[set global-proportion 0]
0 v0 n5 c+ m& m! j, D[let i 0
7 K! K6 u( ~* w Klet sum-money 0
# W4 h6 G: t& p& | nwhile[ i < people]" j; B) h: y5 `( i/ l v4 v
[" W/ a2 I/ o2 q. C
if( length (item i
. L8 v$ s6 ]: B M. l[trade-record-all] of customer) > 3 )" z7 A! [0 q% C. q
[
& e, n! {! H7 c- A3 u7 dset sum-money (sum-money + item 2(item i [trade-record-all] of myself))/ l1 b4 R0 E) e' x- d) h( C2 f
]
1 L; o5 S: H* m( S]. ] f- n# @) M# Q q) S, a3 l
let j 0
! r3 ? @8 `$ d. {+ M7 o1 k7 Glet note 0
. {. I; ~1 i# v% H+ dwhile[ j < people]
- Z) v4 b P a" ?. _[
5 k; G% f8 F# g1 j, r# Rif( length (item i
) T* V4 j3 Z3 f' _4 b: G5 r2 o[trade-record-all] of customer) > 3 )8 s- t5 [1 o3 F- i" n4 g7 _
[
/ O5 e9 M, E/ Z3 Difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
1 i. ]" a. M8 F7 `' k2 H$ ][set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]: M9 y+ L- ^; D. Q; I* R9 C5 z# J
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
3 A9 w* Z+ ^* U]
) B) {7 E, V2 }/ M" r$ q]
t a- R- Z2 I/ s dset global-proportion note) p0 C: R" U4 u2 [
]
" U% V9 Q5 q3 Q! ~1 S) g ^5 |end
2 z9 v# b; P" p' H/ Y+ u. ?- Z" w/ D+ ^, p! c
to do-trade* p2 E _) k0 @4 A
;;这个过程实际上是给双方作出评价的过程
. }& @& g" Z$ O: }9 p3 b, ?set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价- n4 a+ k. d5 u7 @
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价, t$ T9 L* ~* y! \7 f5 t
set trade-record-current lput(timer) trade-record-current2 E' G* e# x" e+ w' T
;;评价时间
. b6 L- R- Q) f+ |+ g# ]* Xask myself [
" M2 r+ @) k% C5 yupdate-local-reputation
( D! M' E1 s7 O( Nset trade-record-current lput([local-reputation] of myself) trade-record-current1 P) l/ J, D5 [$ q
]
s! f! U: P9 n& ]4 Q7 t/ |set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
g" h) l6 S" c4 x7 z1 v;;将此次交易的记录加入到trade-record-one中
& l9 ]7 z: n0 ~set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
+ P& p: [' a5 i# w- S2 Q) a1 u& \. Llet note (item 2 trade-record-current )
4 V7 D _# s3 o, [, kset trade-record-current
6 `# d1 W: z6 L, R" k" F(replace-item 2 trade-record-current (item 3 trade-record-current))
) N9 Y2 a# ?5 m7 m6 Z* `5 G, hset trade-record-current) S6 d( }$ s" E1 D2 R
(replace-item 3 trade-record-current note)
: R) c! `1 f# D7 _$ E8 U8 x M3 T$ s* q, ]6 ^/ b% ~4 E5 o3 p4 C; c' o; T
6 |& X* S9 f' r3 W% ^) L
ask customer [0 g3 g9 I% @% O: C
update-local-reputation; J% b( a! g+ g' q- B! H; }( U# t
set trade-record-current" i: L7 a7 ^' b% ^
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
7 Z' B( q/ T: p' F1 C" F0 q]
- `5 T1 i2 u: s9 d
* a- `" P# |0 ^; t# H6 b& p3 V) A1 u, |; M
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
8 S4 u) u9 N) U1 x1 q( a: v* \) F
+ \6 h6 N+ w8 a$ K5 ?, d9 i7 [: T3 f* wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))# g5 C! K: t) ` Y. Z
;;将此次交易的记录加入到customer的trade-record-all中. j' R( n: g' ~
end
$ R( Z; S, }6 n! H8 d, K2 b- y: m. q! F+ ]" A5 [
to update-local-reputation% t T; l/ A- E
set [trade-record-one-len] of myself length [trade-record-one] of myself7 o) W& s+ s/ x4 z6 ?
C# |4 o/ j6 k8 n& Y: H* L9 y
; g+ ^0 [6 s! @+ w" |- r/ W# N;;if [trade-record-one-len] of myself > 3 % z5 b( }, L1 r
update-neighbor-total
: U* P9 B- ?- }" P* D;;更新邻居节点的数目,在此进行' k+ G; j! h/ O6 ~8 u8 h9 c
let i 3. {' U F* u" [% `& [7 J; v+ k
let sum-time 0 ^/ a" O5 r/ _% S. T
while[i < [trade-record-one-len] of myself]
, l5 K: a8 m& g4 U5 d2 x5 y7 `[; o1 W' T8 l/ ^" R" x
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
& q% E! u! G6 {; y9 P+ t2 ?" yset i! K1 q" W, t$ S2 u0 H- c! J5 l
( i + 1)
1 b3 {3 g8 r! }; a K/ e. y) p$ X]
; r$ H$ M* E+ ]( Clet j 31 a1 [8 c @+ Y3 h7 L2 E- u
let sum-money 06 i+ b2 {; m% m6 W% l# W# S9 }; c4 s
while[j < [trade-record-one-len] of myself]
9 l) K$ F8 H( m[
Q- V1 z0 ?( n$ I( dset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)9 `9 [4 x$ {0 ?6 i- [/ A
set j
2 J% K/ F* ~! _! M# X2 C% [; c* \ ~( j + 1)' f" p4 D* v* S8 \2 o
]* Q4 i3 V4 E1 I8 i& B
let k 3
" C9 S! C9 ?9 O: g, q; {5 q9 Llet power 03 j4 L' T7 u, ~! I$ y- B
let local 0
1 T D. C: d) Cwhile [k <[trade-record-one-len] of myself]
" `( `2 T q" A[
6 m. C+ I; D* s$ o1 ~set 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)
* y; [. O$ c5 E' F/ [7 Iset k (k + 1)
, Z3 B1 M% Z; v! q+ j9 Z]
9 N8 N8 I! D5 V* Qset [local-reputation] of myself (local)
. W4 o2 U8 b# @( d: a4 e/ g7 j( I+ Pend
$ L: z$ ^: W. M7 } U
1 }: ^% R- B" N5 A2 e( F" G Ato update-neighbor-total0 _" i5 m1 M; s' U) Q
% f& z# Z- ?* n% e
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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: l1 X4 h/ p- |* T' ?end2 d1 R# j; p" V( C0 g
/ c* ?% O$ b1 I. C" ~
to update-credibility-ijl . r0 F) l9 P; w- K3 C& P2 K9 \4 z
5 P+ O1 f" ^ v' B5 p;;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: H. A: p+ d: }
let l 0
: G- G! I- m7 V* cwhile[ l < people ]
* M! i4 j2 q9 S/ p;;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7 g6 _3 X9 z+ q) R* ]9 u
[
( ?" d" [# u/ K o z% L. Y Clet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 l' f$ W) ?; c% Oif (trade-record-one-j-l-len > 3)
9 L% n9 y1 Y [[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-one5 z4 P9 m; S- s1 H
let i 3
: l+ U3 s: H/ R; X L2 Z6 ]let sum-time 0% ~% ^" t6 `7 T6 o" I: [
while[i < trade-record-one-len]7 k1 B6 u$ n. m) p+ H
[8 p2 C0 c. L7 ^8 P$ [( H$ {
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 r3 R8 ?: d6 R5 M' o/ `, Y! L
set i+ V- O8 Z1 T: Q* d/ S$ P' v2 i
( i + 1)- b4 n( Y/ r! e" a( p* Q! q
]
* l/ ?& i' [" W% `! w wlet credibility-i-j-l 0; s% G% G6 S m5 n. o7 @* q2 k4 ]
;;i评价(j对jl的评价)
; ~6 }- r9 s1 Y- Blet j 3" }& t+ l5 s: E# a1 q
let k 48 n+ V, k) v8 Q
while[j < trade-record-one-len]
$ v) k2 e$ T5 U6 y# c V[
$ O# p! `2 M) f( I1 Awhile [((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2 F8 I2 c8 H5 G8 ~" U- M# K
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)
/ Y. l9 A) d- K, Pset j' G* b+ }) H4 M: V, `+ C
( j + 1)
/ v+ {( X$ d& J% G]
7 d- U3 Z9 r2 K3 i# y* X4 Eset [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 ))& |6 J; b' f) Z/ ^3 s3 W, Z
1 k, v7 ?% ]( H' m) n* A! o1 }7 e+ q9 _/ {/ w( G9 t# y! J: h A
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 n8 E. K7 ?) I2 H* K& Y/ Q;;及时更新i对l的评价质量的评价. `& o5 S" u' ]- E9 N$ {! X8 ^! G
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]5 l( b5 D- p' P# B
set l (l + 1)
1 W- y7 l6 C8 ?+ d]3 u& }: P7 L! J: ]$ V
end o. i V+ I0 {2 @2 O
0 [2 h3 D- k" ^to update-credibility-list' N& ]+ x# S) s7 a P' k
let i 0
# ~4 J0 Z+ Z( d8 Q( owhile[i < people]
0 i8 C0 g2 `8 f! q: J: _$ W! Q[5 C" M/ K# F1 S* P# e
let j 0: y" w2 e$ r( g9 d
let note 0/ T7 u7 w+ }/ A( X" v* V K
let k 0. ^7 G9 O8 M" T
;;计作出过评价的邻居节点的数目/ C6 f! B# D- t K* ?* ?( ^: e7 k
while[j < people]7 [5 R% m% R, r# w( l w
[. U u5 m2 X' C. q7 g" r3 z
if (item j( [credibility] of turtle (i + 1)) != -1)
% l1 [% [, r3 B# a3 l6 F& u: H;;判断是否给本turtle的评价质量做出过评价的节点! f7 m9 t; M# q% L( Z& ?9 w# W( c
[set note (note + item j ([credibility]of turtle (i + 1)))
6 y9 p2 J8 D$ B7 W* w;;*(exp (-(people - 2)))/(people - 2))]
0 e/ {$ V7 P0 d zset k (k + 1)) U: i, L9 m2 {! l
]
* _5 d/ Q" B. n: } ^. mset j (j + 1)
6 R3 e2 @) d5 _0 i]
8 j) h. ~+ {5 ^9 ^1 Uset note (note *(exp (- (1 / k)))/ k)8 h+ m9 c9 E) C" a
set credibility-list (replace-item i credibility-list note)8 ^! \7 [1 F0 {8 e$ s
set i (i + 1)
" e H+ |1 G# a+ q5 A+ {' g/ W]
1 r' k9 J1 j6 @8 k) Wend
2 E! \7 `2 v& }: ?: |) I; X
* J( [2 L' v1 P' a+ E) ], ] Rto update-global-reputation-list
3 e% D1 T: z& G4 f. A% s( K1 X) glet j 05 h2 |: d, U' ]7 E7 V, J
while[j < people]1 M! m# E, ~3 l
[
* V% C5 h. A) D$ D& O6 ?let new 01 G3 Z) R) p3 o8 S8 i
;;暂存新的一个全局声誉
* g& M4 `+ {8 m2 n0 mlet i 05 _% E* l. Z( M/ q. P2 H) E2 e
let sum-money 0
1 S* {( G0 Q. k/ [let credibility-money 0# v' x" _% l# \1 x
while [i < people]* K3 B& M, H* |3 M/ x5 b" {( F3 s
[
! X) b+ x1 F7 e4 V% [; ]- Kset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
' y7 L6 b/ R% i4 Gset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
& M' ^9 Y/ L6 m& f- f& y* Hset i (i + 1)
$ p L/ f. M( q, Z& e$ E/ Q1 I]
# M# ~% [, j3 N6 y+ Ylet k 0
) R8 Y4 B$ | ]7 ]$ q* g; L' |let new1 0! q9 O+ f; ?6 t2 Y; ]2 b y
while [k < people]1 p3 }7 y# l( i J V
[9 k8 a S5 H6 y1 M& ]0 e. f
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)
; E5 x7 J( l, S% {% [/ q, Vset k (k + 1)
& B" w. C/ \5 }7 b- \]
. m3 P7 v f5 P- J& o) hset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( u$ y- \+ k; `- lset global-reputation-list (replace-item j global-reputation-list new)3 J# p; h5 }3 I6 A
set j (j + 1)+ _! }6 S: ?4 H3 t5 f" @ {
]0 @ j b& Q9 ]/ n* m* M9 q8 I. w v
end- J$ c) t2 e! l8 R0 o! n
; S8 ]' M; c: V5 Y) K
" i8 C7 {! D# a6 n$ ^3 I+ E8 n4 P* c# |+ [0 V9 z0 s( \
to get-color
3 F' E4 {/ j1 Q" M- n
: c7 d# r; d2 A( t3 r3 q' e+ Q7 ~set color blue
2 Q6 {5 H0 M Q; c L; L( Uend
. t4 b4 v+ n& N/ N+ E. \* U9 d* S$ v& u7 o
to poll-class
; i) Q4 y' d! T2 o& n) }0 ^end. ^, ]1 @$ D. Z( z
$ u: }. F" B. I, `' |
to setup-plot1
: x5 E3 }0 m1 S7 r$ [% H, P; L$ o/ I' u
set-current-plot "Trends-of-Local-reputation" s1 X3 U% l1 d" k4 x6 w+ _
# b& D# Q2 F ]) fset-plot-x-range 0 xmax
5 b' A5 A1 s$ T8 b5 h
, r9 B# M+ l( {# Lset-plot-y-range 0.0 ymax8 l8 n# _4 J. P$ F4 {3 C
end
; l% s- T1 n1 T5 n3 k6 W T0 M0 `: w9 S: G; n5 m
to setup-plot26 P% _/ F/ k. b) l1 j
2 ^. \2 }0 {7 [8 m+ bset-current-plot "Trends-of-global-reputation", |5 }! \8 g% x3 u
" }$ p7 u! ^, f
set-plot-x-range 0 xmax# _* K1 v+ m* Z6 Z: ^* U
' J' n* @ `+ x6 W. \
set-plot-y-range 0.0 ymax
1 i: j `' L6 `, P8 uend
! A& l3 A" N2 n7 u6 K5 C. Y" R, @- R( a/ G* v H
to setup-plot3
^0 R8 f# Z! K% W; g& ]
2 f4 U) K* _/ `. \: V' Rset-current-plot "Trends-of-credibility"/ d" ?& l8 A% T
7 X2 @9 k2 q1 y m
set-plot-x-range 0 xmax# E h9 `% v* t( d; _& C7 S5 u
" W/ ~- L" L1 C1 a5 }
set-plot-y-range 0.0 ymax
+ d. V' X, r+ P( Qend4 N4 l/ {7 u( i6 a; g7 l/ G
# y9 i, T0 C1 ~0 T. s1 L3 L* Tto do-plots
: F! g, f& n1 |% O8 W, xset-current-plot "Trends-of-Local-reputation"
) G- |3 k0 D) a }set-current-plot-pen "Honest service"6 I4 y+ J- Y' G0 K, M7 K
end/ u h9 h$ v$ L7 v/ K0 W
2 g! Z0 g% {8 U. P4 r% x
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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