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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
0 w, y- [; D8 _( t. i7 ^) gglobals[# a9 r# c0 z5 @8 W
xmax2 Z3 |, s2 U3 B3 `
ymax
$ W. H4 r; I% wglobal-reputation-list3 a* q% `3 F9 o8 c8 h
7 I2 ?' N: z5 J( @% _! X;;每一个turtle的全局声誉都存在此LIST中9 }+ C; C. Y/ q' H
credibility-list: h$ j! Y* l7 m9 g; N& E- F
;;每一个turtle的评价可信度; l5 G8 l: ^$ L9 r/ R* l/ f
honest-service. W8 M4 ^6 k$ ~" q C+ c% L
unhonest-service! o9 D. b' ^+ b, p
oscillation
. s. t* E6 U! c4 H! Rrand-dynamic
& [" d/ i u9 o8 {2 Z]8 {* u- _1 X2 n9 L* R1 `+ G1 Z, u
@# @& D4 z) sturtles-own[
/ H# h! X+ p `, `trade-record-all( }/ N; }' S3 E- T) k8 X+ `' S
;;a list of lists,由trade-record-one组成8 s' ^5 y- r5 V8 T4 x
trade-record-one
$ g1 G1 p& t& 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
- H9 X9 A* P2 C0 N9 R" l0 c$ Z% V' W9 i/ ^" S# 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]]
$ t: ^1 ^ y' D$ mtrade-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]
% J1 y0 b- @9 e% m, j! e* n7 D1 Zcredibility-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
9 \5 |# _4 N- W7 ^' r5 n: rneighbor-total1 l6 J( @! H8 _) \$ s+ [
;;记录该turtle的邻居节点的数目& \- m0 n5 x5 y/ Z
trade-time$ X9 ?% _/ }: ~: ~% j" w
;;当前发生交易的turtle的交易时间
, O. m: m, F% p" R- Y) i3 l& u1 [" q9 ^appraise-give
7 o; \9 _* Z2 o2 v, {;;当前发生交易时给出的评价
) i' ~: `6 a* G1 R% a1 cappraise-receive' @- l" {6 m+ E0 z+ _
;;当前发生交易时收到的评价
) w4 v- W( N2 v# h2 Q1 a- \( fappraise-time
1 s4 q& J" B) z/ l;;当前发生交易时的评价时间
) s% c0 K7 d3 |0 g' U+ Klocal-reputation-now;;此次交易后相对于对方turtle的局部声誉) d. J$ R: {8 x0 M# i$ n
trade-times-total
, \6 V. u* \* _! \;;与当前turtle的交易总次数. b& S% O5 [3 n; r
trade-money-total8 `3 F9 y( i$ d
;;与当前turtle的交易总金额. I4 ~( v) Y3 T/ H3 m5 R r5 I
local-reputation+ u1 S6 N, r4 y& C- K
global-reputation
4 I# j. a! E1 s1 _# V# n- a. s+ mcredibility2 T" A+ M( O( @ g- m7 b8 K4 W
;;评价可信度,每次交易后都需要更新& N c0 D. o' i. n
credibility-all% R$ n' H' N3 X3 `* l4 F
;;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) ]" Z7 L; k" w, `
; o$ Z% B8 ^0 A9 L3 h) c;;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
+ P5 W8 i. R4 w8 k4 N: y3 }credibility-one8 w+ n7 g1 l* g& ]/ y- P5 a( z
;;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% d! R; S4 J) x. l
global-proportion
& Y0 r# `3 v, i* o( Ecustomer
) Y7 A; ~; A( B2 Xcustomer-no5 b8 s B1 |+ r
trust-ok
# z }* f3 \$ J" x/ ]7 H, l" xtrade-record-one-len;;trade-record-one的长度. a' |6 A+ u- J* T, s: C
]5 O7 j3 W! } x% L
. O. k0 `+ P/ Q;;setup procedure
) K+ q1 Y( ^2 [/ D8 M m: T8 d
2 f. A& C& @- c: v: Rto setup7 o$ e: W/ d! D
. @( Z. c3 A1 {' m+ R" yca' ]& f% O6 y% \. y& r
# F7 v0 }0 ^1 l% R) K# uinitialize-settings
8 A3 ~2 O; i6 b' \4 }; z9 v' f O% {: T* b
crt people [setup-turtles]' N% b9 N1 H$ A: F
8 p) i2 f" |& n1 preset-timer
/ g% W: O8 y9 C+ s# o" g2 g+ P; G8 {
poll-class" h9 v- `. |, S* M M2 T
# n% J1 k9 t; Ksetup-plots
* H- R3 B8 Q: B+ I. N+ K2 q$ r
! ~2 r0 _$ D% u' }: Ddo-plots w& }; j1 v6 B s
end
: Q* i4 U% e( L6 E t7 c5 U2 ^8 [# l5 `
to initialize-settings
( F8 }7 V8 g! |7 k
- u6 ^0 E% ^8 p7 jset global-reputation-list []
0 y8 p8 \0 ^$ r* J |: {' d2 g" ^) y( n! ]; S
set credibility-list n-values people [0.5]2 O3 v$ e3 x3 |9 I
, L3 L4 i! o% X! ?
set honest-service 0
) P8 L0 @4 L4 ?' y6 I- i
. t$ b' }6 O. e# K0 n4 Jset unhonest-service 03 i1 j4 G9 o0 G7 P9 o
4 b) P' p; X/ a% w3 ~. F, Kset oscillation 0$ I( T* s7 i. O* i2 C' a
( J* Y9 |: v+ a- m' Iset rand-dynamic 06 D8 h: A3 w( s5 t) j
end
) c4 w3 x/ N1 {* E1 @: x: `2 I6 y6 P0 y M% N Q8 i/ t. p
to setup-turtles 8 _# G/ a' S$ K
set shape "person"6 v/ H$ _: h/ h% o* Z
setxy random-xcor random-ycor% ~. c/ K2 l% O7 n* \
set trade-record-one []/ v" l2 w% y- m _: U- L/ Z# `
2 D. {. W+ [& T' q' \" B/ t; ?3 wset trade-record-all n-values people [(list (? + 1) 0 0)] 0 l l# u- y3 y |. k K: R
7 e% k8 p! n( x8 Y, L7 T3 eset trade-record-current []* X& v5 a* o8 n
set credibility-receive []7 o: |0 t. p! U2 `4 f9 v
set local-reputation 0.50 k+ Z5 p! Z, }4 @ t; g+ R* @
set neighbor-total 0
+ S3 Q( S& a1 F' T8 Y4 J5 jset trade-times-total 0, U3 }" x7 j( S [3 a
set trade-money-total 0: W0 V2 |) }8 T3 r; S5 ?
set customer nobody$ C$ N8 V( H& P/ @2 g) l- F6 a) U, B
set credibility-all n-values people [creat-credibility]
# Q; a8 O' s! ^% s( _; T9 Dset credibility n-values people [-1]
0 Z- K2 @+ c& `& @" Z# Bget-color) P( v, v" H+ I& H' [' v% K
0 i: q/ D. e/ g, ^1 s8 B+ F- Dend
# M6 G# U# u. Q) J% z, k
% f$ ~/ p% V& E+ T l* q# u# Pto-report creat-credibility
" t' l& _7 d! }5 e8 f5 e9 q$ greport n-values people [0.5]* u) Q& q$ Z$ I
end
2 q* T7 E* I: `
% U1 x8 v" \# j7 b j+ i% s3 \to setup-plots
! E, O5 s3 \4 Q7 U" h2 x8 J" P* g, @& s6 f, ^! ]- Q+ z
set xmax 30
9 H; j, W* m& L: w
! N. v+ x7 w2 U2 ^1 r2 b' w! L* qset ymax 1.0; O' h+ ^/ t8 D1 D
+ r# S4 @# O: m1 g3 s# T
clear-all-plots. ]' v( @# U# x M7 d
7 ~; S4 e+ n" w( u( @
setup-plot1
5 b& F7 z9 q1 }# n9 l( V; V U( U+ l( o1 J- R$ f
setup-plot2
4 n8 ]# m. _ V9 p, | m# L+ b8 Y% z( ]
setup-plot3
4 B0 z( Q4 N$ E8 [) G2 mend/ F5 k- Q$ V) `2 ^' ^
; E# G7 f8 R6 s* G4 L
;;run time procedures# w! {8 I7 ^" | D6 N8 f' Q
1 V A; |' S+ b1 ]to go0 K% h8 }) O, @4 G: q2 P* h8 _# g# X* Q
- B- `0 @5 m9 s/ Y$ k
ask turtles [do-business]
! j) A, t# k8 m3 q+ ^end
' g- v p7 R7 w3 s* r
) U' l* n" d* Kto do-business . ~# G" `/ _7 G0 U3 B! r
6 r: R" Y! Z/ i/ U! S5 `: x% X6 ?
8 V1 o/ b" K" F; [& ] crt random 360
4 o* J7 @2 y7 E5 \$ y
! \- A( I: i2 ?& o4 G9 r6 Tfd 1
. ~. [$ E! G, H. w$ m( l: `: H2 @/ U) f7 M0 D! B
ifelse(other turtles-here != nobody)[: Q5 `& x @1 z4 A
4 u9 W. o0 ?0 g" L# W
set customer one-of other turtles-here
/ `- u0 {9 P0 w! |5 ]) |* R: t: Y' u3 e1 z# h% T+ T
;; set [customer] of customer myself* s2 O, _: e6 T& s. K* N. }
8 q1 u$ l& |2 O: i- f+ Xset [trade-record-one] of self item (([who] of customer) - 1)4 R. H; `2 D3 O2 D R! o
[trade-record-all]of self
) s4 Q' E7 S3 H( W;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self+ ?- R* Q" W$ P. _" Z( O% x# _) K
7 N8 e- Q1 A/ `- zset [trade-record-one] of customer item (([who] of self) - 1)
, k: G$ p5 |7 F2 \7 ^6 |8 h# _[trade-record-all]of customer
8 u* U2 t. y4 }8 v6 C) Q% y: k9 Q) w8 w! t; E! Y
set [trade-record-one-len] of self length [trade-record-one] of self6 Q7 T( z' H# `- }, T5 e9 j
) a' V+ A5 X: R$ ]
set trade-record-current( list (timer) (random money-upper-limit))9 `5 m$ ^2 K8 k; w% H! s1 G9 e3 Y& N1 l
# F& K, c5 b/ c$ d/ e2 h/ ?ask self [do-trust]
) N# n$ n$ d$ i- d& m" W8 o;;先求i对j的信任度4 P0 ?( E- O' R( y
2 J. ]' T+ I; Q' A1 ? ]- qif ([trust-ok] of self)6 ^+ O( O8 j' A' s
;;根据i对j的信任度来决定是否与j进行交易[2 X% q0 ~+ {: l# p6 }
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
- ~' z- e0 r$ z/ z& Y( L
& P: `9 j* Y2 U[8 O9 H8 E) ]$ D& `0 p6 g
* x- d0 T$ S. C0 {7 V o: I" _; jdo-trade
) H6 ]- t/ t/ r3 J: L' o
7 ^: T. r% k) T! _8 ~: e" e8 ]) Nupdate-credibility-ijl& `, p; w6 \( F, [* S
0 W V# Q4 v5 xupdate-credibility-list
9 _' T( {2 A# h S. S
. W* }( ~8 f/ x" W
% }6 v8 E2 a& o# w' o. A8 M3 lupdate-global-reputation-list
; F |9 m, O5 N' d: C* ~3 M. u# W) A: `
poll-class6 K4 r& ^& {. V5 b& _3 F
: t& {8 S) b( D* F; n
get-color
+ z$ N1 s( K J" H6 `( {- W# N! g& A2 W5 @: K! T1 ? K; l$ v% E" g
]]
# r3 _7 k3 h2 Q; V" r0 X5 B7 a# @5 ]& S; _
;;如果所得的信任度满足条件,则进行交易: b! P8 j$ Z: s9 x+ M
. I9 N- Q# V4 _% M) G" v[
! T* n [4 ?: Z4 L3 F$ U. C' k$ S" ?2 @' x2 u4 c
rt random 360
0 q7 R* s) g |0 w( K* U* b" Z
' J4 E/ x& @1 t7 Afd 1$ ^# i1 Q l( [% C4 ]
. P- T$ f8 {, W- _6 m]7 R. I: M5 H7 v
* ~5 G2 h4 C! q, o/ L) T
end! \0 @( P; m& b6 Z0 u# F8 i# c
+ z" z4 |! H. t0 X# N
to do-trust
" P' D. O8 ?& Y$ a9 bset trust-ok False* W3 e1 @4 g9 Z! g9 J
1 r, L4 i5 o, `$ q4 z* I
% _' {( K4 r, U& _$ n* D( wlet max-trade-times 03 A) g( ?) f7 x8 X5 ?9 r9 Q7 z( I
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 q$ K. a$ p9 vlet max-trade-money 02 X7 p' U% i5 W6 b
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
9 e% |3 m, D/ {let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))3 j1 C: [* f, X5 S$ a6 ]; Z0 Y
# V: ~6 i! x( {# }. `( D8 i+ o; I. Y* H, w
get-global-proportion& r7 g o# `( M! Z
let trust-value
_6 x2 w: f0 v1 X. L; x u* llocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)$ A2 h" R) z1 A7 |% g+ F
if(trust-value > trade-trust-value)
; }0 ]3 o5 U& H. J& y4 k[set trust-ok true]) L: V: `. ~5 \3 m
end7 j D) v5 v3 h$ Z
! b% I' s, q o& d' g
to get-global-proportion
- w- a# G! i* e( U5 D& Y% rifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)2 G# l5 e* T0 T: x
[set global-proportion 0]3 B4 f! J& V8 i. n" }$ t5 }
[let i 00 F: M, e. \- m7 ], x
let sum-money 0: D) U+ N/ s _8 a6 R
while[ i < people]! _' M9 h$ l/ G' q: m3 j* T- U
[0 s; U @# C- N" x' c6 Q
if( length (item i
# a8 q! P3 x- S) U# u[trade-record-all] of customer) > 3 )
" M) w: w# F" V& O+ u0 I8 c E[
: L, m3 N( L: L$ i7 i. m7 a7 a9 ^set sum-money (sum-money + item 2(item i [trade-record-all] of myself))5 X6 O9 ?% H1 I
]$ }) s, V L* i* O! w; w3 ]. W* ]
]
, ?# \4 r) { a4 O, Rlet j 0
3 K# S" e9 z" `% {1 f3 rlet note 0
- T1 }/ {0 `- F$ S9 h7 Cwhile[ j < people] l* `& c3 I: H& p+ i2 N4 e
[
w% q$ I9 C0 T1 C6 P0 H6 vif( length (item i
* Z. r: n' g$ Z0 K! }& g' u6 H[trade-record-all] of customer) > 3 )" p4 t* H" _6 ?' @+ O
[
$ g: q0 O; N) W; i) s& w4 Yifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)$ B, ~) ?# A* S) W
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
. }% r9 Q( N6 d- G[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
3 M2 |) M1 D5 {2 a& w5 e]
3 ^% q& l0 I" K7 f" A5 R]
. e( j; X! ]% T2 C5 }set global-proportion note2 I/ z% N8 y$ Y; B; x' R
]
; }/ _2 D/ f( fend, u3 X$ D! v4 h. G* V D
8 C0 v5 ] ^9 ?
to do-trade7 A$ n' G* j) R0 M
;;这个过程实际上是给双方作出评价的过程! p' ?2 G! A, K( [" [' r
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价9 t) F# c& C- u, e# w0 Y" ]4 G
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价: j* R, a- k: X& Q1 ^/ }" e
set trade-record-current lput(timer) trade-record-current
, X5 N; U8 M U: [( Z8 ]3 K;;评价时间6 [- R3 s2 X+ H* ]
ask myself [: P+ E: I/ s: |3 S Y. T
update-local-reputation6 [; o, x( e* D, ]2 f
set trade-record-current lput([local-reputation] of myself) trade-record-current/ ^4 {: y, ?4 ]
]
7 X" f8 i9 }) N9 Fset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
/ ?' a9 F7 M% F* f) r# F;;将此次交易的记录加入到trade-record-one中
. d/ m# w; S! b% Uset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)' S8 F" E( E' s! x) L! Y
let note (item 2 trade-record-current )' j5 O6 U" H/ O$ ^: R3 k- V1 s
set trade-record-current
. j! V! F) w3 `: B2 p; S% j(replace-item 2 trade-record-current (item 3 trade-record-current))
8 [3 ^" b8 a7 F' b; |set trade-record-current
e( V3 C( V" S) D- S(replace-item 3 trade-record-current note)
, {: C7 l4 t- l2 j, A' j# ?% ~$ f
. J) z& r" J; K2 u5 o7 R" n+ P% s% O' [4 O
ask customer [
' E% O" Z5 R6 g$ D1 y7 k) gupdate-local-reputation5 K7 q8 W) X0 }9 R X7 r; n( B
set trade-record-current+ `( ^6 X" C7 \+ W* l
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
$ ~; s& O! E! e/ ^' G]
. |, o# ~1 I% p6 R, s( j$ J
2 ]6 {& }5 A5 T3 v9 w; z
- w6 M0 R' T, l. @! f' jset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ Y/ W+ N& J B F
8 m8 h3 y: Q7 `3 s8 m! }1 iset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 Z5 V, O& ^$ `4 u1 |;;将此次交易的记录加入到customer的trade-record-all中$ b! M C$ \& b% N, b5 T d' v4 p
end
+ T/ [& k$ y# b# r. t! w' r
, }) x. C+ c. E6 P1 y5 zto update-local-reputation
, E5 O% j) e3 f2 B4 r6 }set [trade-record-one-len] of myself length [trade-record-one] of myself
4 g" H+ o& x/ M: d, {1 Q2 C! I! h4 K8 a! A
9 F! a+ ~- V) z, O+ I7 V ]5 e$ W
;;if [trade-record-one-len] of myself > 3 6 ?7 O! v( y9 Q0 n6 @4 S6 s
update-neighbor-total
9 p0 f4 g6 o) l6 z;;更新邻居节点的数目,在此进行; V; \; {" V4 A. S0 K, [8 `
let i 3
" `( s* f4 l, \4 llet sum-time 0
; J8 f$ I- S; a3 B. cwhile[i < [trade-record-one-len] of myself]5 l% q$ P, ]# H6 d( h8 W9 O# i
[
% a5 D, @' j+ }8 ~9 [+ C7 iset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )5 l/ C6 |4 s4 O# G e) {
set i# |+ z/ I6 l- `& m2 o+ }
( i + 1)
b+ ]1 S/ _, z/ a7 _0 z) N: W7 H' N]6 H ?# Q. F) `0 G9 y6 Z4 ~
let j 3/ L; U/ i1 L- W
let sum-money 00 r. N2 h' j% g$ M
while[j < [trade-record-one-len] of myself]! z* u5 d* X( I+ [
[5 w; @6 b8 ]; s% `
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)
' Z! }, w2 ]) U" W& o0 t) y1 Dset j
" J8 @9 C" ~& D$ t7 w0 |( j + 1) j2 `& t1 h& ]2 u' Q
]" M. s8 x$ D* }4 T4 I1 y7 r' }0 @
let k 3 t, J2 S4 l( O- x
let power 0
* w! I- _; }, Y4 C$ |- `* ?, vlet local 0
; ~8 ^, S% q W8 N6 fwhile [k <[trade-record-one-len] of myself]
+ ^! u8 u3 ~/ V3 u2 F[) F# Q7 q- F) _( O/ B+ ^+ \
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)
6 {) I4 y. x; J3 w8 Y aset k (k + 1)* F( E; z7 Q! _
]" ?# R. J% b% ~2 W) v2 ]
set [local-reputation] of myself (local)( r+ e6 ], w% i& Q; z# X& ?# Q
end8 m" ~2 L( f( ]4 T: d2 w' ^
, v. K2 `' f0 O
to update-neighbor-total
& B- k* u* S! [. f s/ ]. ~ C3 h. @1 z3 e D
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
E2 {: e) v4 A H$ [9 |% Q% x! s, s+ v3 C: y2 l" Y t% f
: [! q4 J7 L+ l) a$ cend( u) E7 e/ N, }0 | O
: e) L- W" s& R( vto update-credibility-ijl
: i8 p* k$ B a9 y2 a) Y: _4 o1 l( U7 `/ n$ \6 M
;;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。3 E# G# h" n3 k, {( K: E
let l 0
$ x% _/ b0 w, M# m5 w, y5 lwhile[ l < people ]
0 l) n- g- X. 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)
~. {5 u; V: ?9 q* i) kif (trade-record-one-j-l-len > 3)
/ g4 g. U5 F/ [7 x[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" _9 W9 H" Q4 p9 m1 [ z& B
let i 39 {: V* H4 b( k! v
let sum-time 0; S- N5 W$ Q8 d6 B
while[i < trade-record-one-len]1 x4 i9 P7 l8 m' ?9 f" I* j/ e2 {
[) a3 B' i# y* i. A: f# @" |
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )6 }0 ^1 N4 X# M& S9 ~! n
set i
8 b% T `' ~" y0 X0 U& ]9 v5 z) O# X( i + 1)
2 Z* [0 ^2 A% u4 f] z3 R% s q9 i
let credibility-i-j-l 0; O! w/ g6 O) e/ M6 ^9 t; }7 B
;;i评价(j对jl的评价)! h( @# ? }5 M
let j 3
4 V( W# l0 J/ d( x ?' klet k 49 p0 {$ X3 m4 B$ E/ p
while[j < trade-record-one-len] S) Q. k2 f4 \* m3 G- h
[! c9 e2 l @/ ~( R5 m$ A5 l& z0 H
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
8 l- z" q( k5 C ^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)) f9 i/ ~' g9 k8 z' n! Y
set j% a" e8 A; x/ W. i' _
( j + 1)
$ g9 J7 c1 N/ O6 T]3 u( w) d3 I2 H0 ?9 o. M" x
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 ))
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))$ c: e4 \/ i; ^; w6 o1 d7 g* p& ~
;;及时更新i对l的评价质量的评价
8 ^' G7 g5 ^7 |7 ~% E" aset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
* @; Y; a2 n3 Bset l (l + 1)
* R" ~1 A; r) b p4 S% K2 t]
$ f: m0 U2 y. C, }, qend
* b' w) K W3 g+ R
: L: `; Y, F9 N. kto update-credibility-list5 w, Z8 `3 t) g- H! G
let i 0
8 A0 _4 ~6 M$ J1 X8 Ywhile[i < people]2 O0 R8 h' y q; s
[
) E. E' j ] Z, y. S- Ulet j 0
; c" `+ e. h+ R! b6 Z8 i% Blet note 0
! a. r1 N6 C( v' ^; qlet k 06 ^7 v3 ~7 n4 ~, Q
;;计作出过评价的邻居节点的数目
2 U" D( [5 T9 h, U: x* z5 D- N+ Vwhile[j < people] s ~$ z) @' y* [1 B2 J& q' z8 W
[
5 S2 g; R* x1 C; s2 Q) Y) ^if (item j( [credibility] of turtle (i + 1)) != -1)
9 Y9 F0 `3 k. {" j9 c+ C;;判断是否给本turtle的评价质量做出过评价的节点
8 e5 O0 Z- b3 u( ]6 a; s[set note (note + item j ([credibility]of turtle (i + 1)))8 a' T8 L8 s0 Q' w n
;;*(exp (-(people - 2)))/(people - 2))]
) C& n' @$ Q' Q" L- i) Z# {set k (k + 1)
5 L$ i5 G- x. q]
) g1 O" K; H+ ~0 ]& L" xset j (j + 1)2 A& z9 r9 A! K; p
] q2 j1 J9 r9 [& H& N
set note (note *(exp (- (1 / k)))/ k)8 |0 ]( Z; A, f- S+ Y4 `
set credibility-list (replace-item i credibility-list note)4 k! a8 y+ W1 A6 B+ N1 r
set i (i + 1)
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; U. _! ]& M; q( vend' f8 z) |' @$ ?, l+ n
1 p3 B/ P4 Q2 b1 ato update-global-reputation-list
/ W9 A- N$ n j; Z m/ F( \let j 0
+ F$ w& n0 G2 f4 i& j8 gwhile[j < people]
+ {0 K( [4 s) V% U[
; O5 r1 x1 ^# @ o% Flet new 0. K- c. y" h- i* u' [' T# c
;;暂存新的一个全局声誉
$ N6 b2 n( \5 zlet i 0
! m. X" j& u# I R6 V9 ?# Z" _let sum-money 0( }/ O) l1 t* e1 K4 F4 I
let credibility-money 0; e, T# t3 t4 i9 y0 p) X
while [i < people]
# s: u7 A. \' ?; t( h E: b/ Z- Y[
- k5 W* f& M: W* D) pset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
" f5 r3 T- L6 H" i! dset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
- l2 o" t8 \% s: \! E; f. Vset i (i + 1)
9 L" e6 o: `7 H, |]
$ ]7 u1 V, w3 ?& `3 Q& elet k 02 F% L: Q! @0 |: d# D& m% S6 ^# E
let new1 0
2 K' n* d% l/ M+ L' v( K7 bwhile [k < people]3 I% q% S- H/ q l! R. D% s5 Y& Z
[
5 W5 u1 i$ e# M9 M0 Z( x$ 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)" x( D p! v8 Y. O- x$ P6 }6 j. q
set k (k + 1)5 w) |5 h: _9 Q1 Z' Z# m
]& ]/ l: f* b/ `% p/ k D2 D2 q3 V
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ; h: s* l8 ?; I- w8 d3 C7 Y& |
set global-reputation-list (replace-item j global-reputation-list new)7 y/ }) \; h A( N
set j (j + 1); U5 Z8 S. D0 P; f6 N$ }
]
: Q- ~% p( T- I5 N" dend
; ^8 m2 j# N g" P0 E6 A' ]( E: V
0 ?' @6 L# _ w# L2 D8 [* K
1 H4 }8 y6 }* g% `
to get-color
3 V' U0 [. C9 z' x: E$ o, s! K3 q' P- x5 b* E* ~
set color blue- v) z& Q2 y. r% Q. u- x1 m6 T( Q
end
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to poll-class, r4 G( q: @& b1 Z0 C8 {
end9 i4 n2 i( `! @
8 C, x B, M$ t* H2 _- Oto setup-plot1
6 r* C5 J8 d; A: M9 h/ O, |' u* V5 u$ \" Y
set-current-plot "Trends-of-Local-reputation"
) M2 }) ?6 \& C/ K7 n) u$ h+ m8 X' h% Z# G7 b. g$ \7 E
set-plot-x-range 0 xmax) }- F) Y7 I8 |2 v
& y$ P. _# b2 w6 \( Eset-plot-y-range 0.0 ymax
" Q3 ~. }% j* y9 l) N Q; xend
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to setup-plot2" ?$ _& i2 }0 S9 P& a- z- V
2 ?; t' ^9 ?& z0 S* [5 [+ {set-current-plot "Trends-of-global-reputation"1 r4 X, [, \" T) w: B
3 w7 w0 \( ^6 L+ F) }set-plot-x-range 0 xmax
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2 x0 V* I. f- S. |# }+ bset-plot-y-range 0.0 ymax+ o+ i! I& w) @- @: w$ i" ~: E
end
/ e5 _7 b2 u1 V. i$ j0 W& z9 w0 ]' C! A5 f
to setup-plot3
* E8 O2 Y8 H5 ?: i+ x5 C6 H9 T1 x6 j) _0 o3 ?# ?
set-current-plot "Trends-of-credibility"
0 a# `! w0 i4 Q
5 a1 n F2 }+ C0 n5 Zset-plot-x-range 0 xmax
4 G( o9 U* P4 x% ?" y& l$ B
8 f" b/ g7 n% R; I) j" ]. bset-plot-y-range 0.0 ymax1 L6 j" X# `" \/ P9 v6 [, p
end2 i7 g' d& Q# \- y% p6 I) a
& W2 r- }+ o- X' d" }to do-plots
/ k& g" T5 j! n) P! H- j, Nset-current-plot "Trends-of-Local-reputation"& c8 w7 t ?' x1 q3 M2 m
set-current-plot-pen "Honest service"
& R" ~& X" k1 ]4 Fend
_* o( Q& J; D0 a9 Z/ I! F
3 E: q& E9 M, w4 d2 q[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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