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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
* w+ S w, |0 A0 Y$ j9 ?globals[4 F9 m F0 b9 {4 `; V' ^/ E
xmax( w/ N: n" r* d+ v
ymax
& A( ~- f1 i" v' C2 b7 a/ jglobal-reputation-list) Q4 P9 \, U8 I& D( Q
2 I, I" a. I% R, Q7 D; Q
;;每一个turtle的全局声誉都存在此LIST中8 b. M9 N8 N7 ^- j8 G- b/ b, V" W
credibility-list
4 P! U# r6 z! q9 };;每一个turtle的评价可信度. t, {9 i0 k4 @8 i3 |9 k
honest-service
" G% _% p9 }8 q+ Q$ Tunhonest-service: `3 Y3 h6 S, f Q" N0 f$ {3 A
oscillation& g% T7 x$ f4 c. ]
rand-dynamic! Y A. @0 C& Y9 y8 `! q* i
]7 h Q! _) d* M1 `2 R& K
7 e! ^5 F. u( a Rturtles-own[
2 T: e! D& p, y5 Ytrade-record-all j3 @& a+ K) S$ \2 J, }7 ~
;;a list of lists,由trade-record-one组成: a4 T4 E0 \, ~+ N" M4 F( M8 G! w( t8 [
trade-record-one
0 k5 \ b" t6 |;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录0 W8 `+ H) b( M1 @& r( o, T
4 g/ O7 J3 B: q& G* m
;;[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]]
8 B9 u' i' U0 k( U. d5 ~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]' b- `4 i1 s- p/ V3 i" z2 K1 b- z5 i% a
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. t+ G) f/ x5 [' p) p
neighbor-total
2 D% C7 ]: c' B9 ?( i: ~( O6 N$ p. T;;记录该turtle的邻居节点的数目
( p2 H7 n$ U/ y9 [; Ntrade-time
1 |$ @8 y1 j: A! K/ J z0 v4 Y;;当前发生交易的turtle的交易时间
+ Z& {' N, K$ ^& Pappraise-give$ c2 M" v4 U; O
;;当前发生交易时给出的评价
" q9 W- `: \/ V3 d& Pappraise-receive. V, S8 e* B% \( ~/ y
;;当前发生交易时收到的评价' F k3 {0 Q5 \% d; B8 U
appraise-time
5 W6 p/ z, ]. R% S: J3 w;;当前发生交易时的评价时间! C! v" K) `1 Z' D
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
: B. E3 l, F$ _3 F. ^- etrade-times-total
% A5 f! B/ G6 e1 _, @;;与当前turtle的交易总次数
% c: K9 @' P+ Ltrade-money-total
, J: |& O( m! {' S;;与当前turtle的交易总金额
* c2 i8 b' E' [) E9 q6 o" {7 ylocal-reputation. w, w8 o) D8 A, o; ^- x
global-reputation t* b4 q- a2 k3 q+ w$ J4 G0 H
credibility# k# |* X! w( K A
;;评价可信度,每次交易后都需要更新
/ [' I3 H2 @2 k: n1 i3 xcredibility-all& g1 F& {. o- p& }7 \1 c/ Z6 q! N
;;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; s9 }: a+ ]1 p* x5 V% n
7 {& \- l) n- {0 a, {;;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0.57 n& [& C0 s0 p, r) L" L$ x) p
credibility-one+ B: D: [6 _/ g
;;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 K( ~) J3 [1 A: v- B) s: d
global-proportion
6 L0 X" U: E/ O# r U- V& |customer
% Z6 B) S. ~6 acustomer-no6 D" V: C1 [ i: A7 B$ [. B6 Q
trust-ok
9 |' t3 i0 E$ itrade-record-one-len;;trade-record-one的长度8 u! `4 n. B" S# @4 z! f, |
]- `/ W# ^4 j/ g: _. z* x. @% ]
& h/ d& A; x: V. Q
;;setup procedure" u O% `% W* d- C0 ?: g
V2 P8 `% Z0 V1 d
to setup4 K1 D1 b# U% P+ z% K/ C
% \$ v# Q# N. o( g6 [ca
- ^2 |* d8 A, b; p
3 \8 Q2 E' l( J3 @5 x( hinitialize-settings
. `% w& \' f c# \! P- o! F5 F
$ b$ b3 ~- z7 B% G# A$ H v; Pcrt people [setup-turtles]
. w2 U) ?9 n( e; }7 |' V) l
. G9 v# _9 c3 o0 [2 |$ ]reset-timer
$ |2 y ^+ }7 U; x8 f6 v0 W! v$ _! N- e7 }+ m
poll-class
. t# [! B: ?( m
2 [, s8 N- j$ E) |. ^setup-plots
3 Z7 O; [3 Q) O! u! K6 Q- E8 {
6 D) b4 `# u$ Ldo-plots F: ~' b. v1 S ?0 K8 P: u F+ F0 {8 @
end" }8 g1 ~* a J+ {0 f+ {- ?( y
5 E' I' R8 |% W* C
to initialize-settings' s0 j- M% E e+ z
' w& q* I3 N. Fset global-reputation-list []
' W6 M% T8 v+ L. L( r
2 d- o- h4 O' {4 }6 wset credibility-list n-values people [0.5]
" \* G/ @0 F0 E1 `# d9 m( n; a4 g% Q" K& q' l
set honest-service 0
) j: N- p: k' T" a* s
' Q1 s. [+ G: {& c Zset unhonest-service 02 @; P* M& S9 I
/ l% d7 w# i) y2 J' Mset oscillation 0
; p1 O9 i* O' i5 |- q5 K$ C: }# P% K4 u" Y r
set rand-dynamic 04 s* _/ f3 }9 ^4 l
end
. ^) N: A( h% l2 e! M% \+ W, E' |! d" ]( k5 ]
to setup-turtles ' q" U) K1 s4 `9 F3 t9 d! J
set shape "person"7 J' U' h' y5 h) Y1 R
setxy random-xcor random-ycor
' x0 f" \: ], h" Zset trade-record-one []6 W) C& S' F: J
+ I. D# X# J- U9 J6 u7 s; i
set trade-record-all n-values people [(list (? + 1) 0 0)] 0 H3 X5 w6 g5 K$ d4 @) s
( P9 _7 i9 Q6 t5 u. wset trade-record-current []
, q$ u( v, y Y) n- ]& kset credibility-receive []8 @8 t' g1 w* m, x9 E1 M# v$ q
set local-reputation 0.5 [; e- c& {( A& s# I
set neighbor-total 0
$ K; v6 }, a% e: m3 u( Iset trade-times-total 02 q7 i- V, K' X' F$ S9 x
set trade-money-total 0
+ g$ d9 Z! ?) V1 O6 K- v ?" Rset customer nobody; ^3 ^, u$ t6 V0 s2 k+ H8 w
set credibility-all n-values people [creat-credibility]
" r7 r2 H- R; O( `set credibility n-values people [-1]
3 ` i) e9 j) o4 }1 Z; @) Tget-color
% a: |/ d( l B
3 q. o# T" {* W) z* Send7 N3 ~/ E7 U& H
" {' l @( N* b, }. M3 kto-report creat-credibility
- t# ]3 N, E* z. ]- O6 y: R# Breport n-values people [0.5]7 _* \; s; o2 ^1 P4 q
end- j* J- g8 b8 M* |; V
+ q) w. r; K' b, J4 k
to setup-plots
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1 b& d: G: _7 P xset xmax 303 H- V, P A) \5 T& t
1 Y: L: ?+ D# X% u ^
set ymax 1.0& |; j- O4 q! B0 T
& Z+ c; ]3 p; l6 V T; `
clear-all-plots
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setup-plot1' Z! s' l' Q6 @/ b) n
7 o; P8 O+ v2 i K F8 \% msetup-plot2% V6 p a; o8 m# ]+ I1 u' x
$ D1 H' f1 N, W l/ A. E* ]( S( k
setup-plot3
9 o! |0 v! H3 W: v. d/ t6 T- U4 `end
( }, t2 @# Z7 R0 s4 J) h6 Q1 c; N$ m2 U8 E
;;run time procedures9 |# X, H6 k4 P) c+ y& X5 B5 i
1 i1 l1 ~ C* s2 c. X: Xto go
& }. L9 L8 F8 H' l2 w; c# q+ o* ?( e1 @, u& f
ask turtles [do-business]
- a0 Y% s0 C3 ?0 T! X& pend
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to do-business
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" w8 {, k; u) B" P- Q- E- {; d" W, I
rt random 360( x6 O. w! c0 s, S+ r3 \* l5 i1 L
8 L) h8 H+ z) J; Y' U, z- Y
fd 12 _3 _. ~% l5 b1 T! D: n
% w5 v! g, S- a g+ N* z6 @
ifelse(other turtles-here != nobody)[
' }- u" k! U$ R5 t; J/ P5 F o3 E0 j4 z2 i8 F
set customer one-of other turtles-here$ Z7 V% l2 G2 f2 e& f7 B4 e
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)7 q. ?3 o4 _! ^4 ~
[trade-record-all]of self
% _4 z- W2 O9 R: R;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self0 P3 M( t* Z% W+ k+ C% K8 q* d
! X: |2 D4 }- X1 Pset [trade-record-one] of customer item (([who] of self) - 1)+ W1 \$ {2 Y) k Y4 w+ V
[trade-record-all]of customer; N8 E6 {1 j8 B& _
* ]7 I, e* |: H
set [trade-record-one-len] of self length [trade-record-one] of self
- b. S F6 S; z8 ~& [, [& I/ y3 u! n( x1 c6 `, q- d; O1 a5 P2 R$ D$ \
set trade-record-current( list (timer) (random money-upper-limit))
& U+ _3 l/ c& I7 p0 s
- g; H& F1 N3 g' ~. @ask self [do-trust]
+ f9 u6 b# C/ W( ^6 C0 N;;先求i对j的信任度
' ]# e' d# Z" E9 q: {
8 P" L4 M" I% U$ i9 u& mif ([trust-ok] of self)
/ c. b' Y* k% n0 U) U( R1 s5 r, t;;根据i对j的信任度来决定是否与j进行交易[. d8 F1 N% i' _* j5 x# L* X! ?
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[! c7 J: K9 f( Z9 [% {; Y6 H; Z
9 W) _. ~7 A' T' p5 h
do-trade
0 W9 ]- m; F$ e$ ~, Q7 _7 q9 I8 `
% Z- d! V' h/ A9 ?" uupdate-credibility-ijl0 Q6 R5 b- b5 S$ s* k1 u
0 z4 \6 L) L) E
update-credibility-list
& L3 m/ G0 ^0 F8 S3 l4 U: k1 ]( ~. L9 r2 T
. E) T' S& a, B- H8 |update-global-reputation-list7 f% L2 }4 H& N; C+ L: K4 ~4 J
' I% B) y3 C$ o6 q' j2 {$ ]poll-class
! C' F0 T" s2 y: F2 A. a9 o( C9 l/ v8 ~& D; F# V* g( r$ G
get-color
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]]$ I& I' P- ?1 {3 S1 O( Q0 L
# t( L, h+ `- G) z, O
;;如果所得的信任度满足条件,则进行交易3 M8 `/ u- g1 U" Z7 _: T7 P+ S& n
4 L9 z' ]+ e1 p9 s. y$ S' {. K[ D3 ~) ^1 O* `( V
6 F( N S' |& qrt random 360% L" a/ j7 a* F4 K6 \+ k, C
& R0 M4 j) N( E* N1 [) w$ nfd 1
4 W4 z/ `( h; ^) e% q6 a- Q$ S3 f2 @; r' m P# n" c6 c0 U+ N
]
* r" Y* r' z& b! W9 A: M5 I( G2 m$ V
end0 }' X3 s* r Z5 ^4 q
+ v3 d+ l- v1 B8 ito do-trust $ O. F8 f7 I- f9 o9 a- T9 U
set trust-ok False- r. k9 x) O! I
9 g3 {: u K: R9 V
) Z7 m) H* [! xlet max-trade-times 08 b! f9 X3 b k
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( {4 x8 G7 x1 r3 A
let max-trade-money 0
" z5 ]4 V6 {/ d& W- k5 y/ O+ p: i* [foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]# X+ O" U) {: O0 n
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
+ z A7 L9 n# p8 u, b7 i& E
& `" h9 C* R2 V/ ^5 [% j ?9 S" k0 h0 `9 I
get-global-proportion5 V4 F1 b2 s; {, q9 c& q5 a
let trust-value
4 g6 i- v! m* ?/ { }7 ]5 g/ wlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)1 A6 q. x9 ]! w7 p* j& M
if(trust-value > trade-trust-value) L$ u/ D5 r* _' m) v
[set trust-ok true]
% q$ D; Y* h0 e5 _end
! q/ T+ L0 T/ ^6 I! C% H* _: r2 `( X1 C$ G7 N: F
to get-global-proportion2 o2 i" `; t' \- f. z6 x. _
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
1 W% L/ ]% I$ u! @3 k0 l[set global-proportion 0]
+ z6 D/ G5 D6 D6 V. v6 l" M8 H# k+ r" q[let i 0; j; u4 f, q3 e t
let sum-money 07 `1 T. e: q8 v$ w0 l7 R
while[ i < people]5 \. ]1 k. N# ]. P
[
/ K4 \$ I7 N# e, S" {( ^& Qif( length (item i
% O, M V4 n! d; j9 g[trade-record-all] of customer) > 3 )) D. I' c, |$ F- N7 S
[1 Y# [4 }! A# _& H/ \- I
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
5 ^) ]/ k; P; a6 ~]
7 F H# ] _7 B4 A+ W w]' n. Y& B. |& h& o& T
let j 0
# t' d0 s; A5 \2 b1 V3 e- alet note 0, @/ B0 j: R$ O/ z0 [
while[ j < people]
7 o1 V, {3 z# V- A! o' P3 S[
) x& I0 Z- Q7 }& uif( length (item i; A8 P ?1 U/ \' \
[trade-record-all] of customer) > 3 )
' e9 Y1 S7 u& j( Y[" u- F1 B3 {8 ~8 n! K
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)3 I8 ~7 h+ a0 r. H5 T2 x) A7 e+ |
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
5 d. g" ~3 h9 x/ O r[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]; G& [. J9 }. ?
]
9 z/ `8 a' K f! v]; W1 w! L4 I0 P2 L$ S0 X
set global-proportion note) J$ e. r( _5 m/ b- @6 m
]1 | p& O8 d/ _, g4 ]
end
$ N+ L; e) t& M2 w& k8 W$ n: e' w6 l# f6 f4 D: t
to do-trade- s, A* Q6 {1 w9 w. G4 Y4 M0 B
;;这个过程实际上是给双方作出评价的过程- ^3 ]9 U, |1 V9 k! s
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
6 q7 t3 G" n- ?* Gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价% q) J1 n, r7 \7 l( O2 c1 D
set trade-record-current lput(timer) trade-record-current6 S' D3 f: l' j- T# o4 ^- _$ s! m
;;评价时间
4 | m$ X4 C2 L/ C) [7 X& C5 hask myself [
0 w5 y, j) M' Z# ?/ dupdate-local-reputation
- @* |' ?* t" i4 e3 F# d0 Oset trade-record-current lput([local-reputation] of myself) trade-record-current" j6 E0 x" h2 u1 z: f8 c
]5 K* z2 Y# K* V1 F _$ q) n. k
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself9 K; u0 L: D; J8 u
;;将此次交易的记录加入到trade-record-one中; w' j/ [" m3 |7 W
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 ~4 x8 d. d( u( g2 m, a( x
let note (item 2 trade-record-current )
& a; b" e. I7 @' [5 a/ wset trade-record-current1 l' s- d- J( o- e. @& a4 t( p
(replace-item 2 trade-record-current (item 3 trade-record-current))) O/ q( T h- t }. v& k u
set trade-record-current
5 I- W T. [- i. X( ](replace-item 3 trade-record-current note)
. A$ Q0 m0 ~( \- J4 T
J; P2 I. `* z! R7 X/ Z! u' k& J, e: t+ J0 A
ask customer [
+ z4 `& O) U4 ~% S. ^ v J2 ?, Tupdate-local-reputation- I3 o# i# ` P5 L \
set trade-record-current8 ?& I6 b! r, O6 d
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) , c6 y. m; n* T/ s" p/ g
]( A' _3 g% w6 B$ A! g) r
2 D+ Z$ L3 ~, C o) ^7 r$ }! @& W; g/ g% o; m- A
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
! z- u8 b6 R- }0 a5 J! ?
- w$ Y* u! P; w5 M; u0 Eset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))6 X3 Q! s0 k) y3 Q+ [
;;将此次交易的记录加入到customer的trade-record-all中
5 e) s5 M) N6 p$ l7 b4 R; Tend
+ S, e+ B9 k6 b' q7 r8 r
# s$ h9 k" p9 {" [; K- qto update-local-reputation
$ v/ s5 a1 }6 R! X- Dset [trade-record-one-len] of myself length [trade-record-one] of myself, j& `0 [) u2 `3 D3 k! T- }8 C1 B( ?
: c& J* B( Q- h+ j; u+ Q
- f( N+ u; a D& g- Y8 h- a
;;if [trade-record-one-len] of myself > 3
9 E, m( C& h8 A% ]2 I( qupdate-neighbor-total7 T& l& Y4 q4 {+ ~' X4 |0 Q- }( n( V
;;更新邻居节点的数目,在此进行$ G+ y4 r) l* ^. J
let i 3; S" U- `9 _: p% g t& }3 }, ?
let sum-time 0
% L( M2 v( E: `8 mwhile[i < [trade-record-one-len] of myself]
2 y W _% T4 w' ?) v2 a$ a% a# a[
. L1 y4 G: V; D( v) _! a: xset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
5 w, t2 Q Q( q, [# ~8 {: {set i
% Q8 _8 c5 {$ ?2 i1 b( i + 1)4 Q' J- g1 k0 j2 |/ {) s5 Q, s1 X6 l
]
9 v1 ^- c4 @+ W5 L7 klet j 32 c/ X& Q1 K6 U; {& o \
let sum-money 02 q+ f+ K8 ]# M$ r
while[j < [trade-record-one-len] of myself]/ I( Q, G" a8 s8 @) ]! M- A
[
5 \! r* ~/ H* |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)
3 D, h f/ I/ \# i9 _4 lset j# H+ O2 F* X* f
( j + 1)) `+ B4 ?! G% O& z- O
]
3 f2 O7 a/ k4 |, h6 ^let k 3& U) A( U$ o" j9 v& L
let power 0- O/ \, c6 g! i* x. O
let local 0
* x! w- n. n; T. S& Pwhile [k <[trade-record-one-len] of myself]
! {; ]1 N8 e+ ^1 ]- C- K! B[, U3 ~" S* c& b3 [( r3 X1 r
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) $ Q m6 w1 c! f; R% _/ {6 Q" U8 Y
set k (k + 1)1 m. P' E' \ K. _7 Z
]
2 o) y5 ]5 K' ?& B, ^3 u" g3 B8 k/ |set [local-reputation] of myself (local)
$ r$ C$ Y' ]8 r9 V" L, Aend: @5 z$ j- S3 T0 [" E" D' f
" b2 w" G0 p+ [6 A. F, pto update-neighbor-total
9 V9 l; V- s6 D3 z9 S
& C& p3 e6 [2 X# B5 xif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. H8 S* o4 I/ t' K0 s" O3 ^
0 a1 j6 M) M! M
* J* E/ i% k/ E6 K! k4 {) P' \
end+ L# T% |7 F+ q, a! o7 }5 U
% B5 }7 z8 A6 q/ n$ ^6 w1 lto update-credibility-ijl
% ]* U7 W( c9 D! n* z* g( `7 ~, J" J, K# H1 J C' T/ }8 s
;;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。: ?4 t s- V) j' d, K8 M* }, D; D
let l 01 c$ I5 b5 ^) b: _' a, q: {
while[ l < people ]; t C2 Y$ Q+ ~ Y% H
;;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
9 h5 q! Q3 f0 ]( l# z3 a[
: o/ o+ l1 A7 b4 Tlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)9 f1 ]; P. ^3 w' c/ n
if (trade-record-one-j-l-len > 3)7 W8 J9 R; |$ a- }1 K3 S
[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-one0 K; E% c+ u8 q4 N( { R
let i 3
3 P" b; {# R5 W/ y6 x) P. {let sum-time 0& d% _* C2 x! N" [$ W
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )# ^. z/ K; d7 \/ q& ]
set i
4 {% v" ?6 p' S: [% j( i + 1)' N T2 Y4 R( M7 n1 D% n
]1 f9 V. A3 K$ i2 n. n n
let credibility-i-j-l 0
- `' ?& k' e, j* Z4 @! A;;i评价(j对jl的评价). V$ u2 Q+ i, ~* M5 {- V
let j 3
. A9 N J; m K7 ?* Hlet k 4. U+ j2 u: k. l I
while[j < trade-record-one-len]
4 O+ y* T7 y0 s0 u+ t[
) Q q3 `% R, U' S2 \! D* f; q" I! zwhile [((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. C9 p# J. W5 }4 S3 {" a
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)
& l( e$ ?1 I8 R- c! {set j3 |) z! f: M# m( X1 S! v
( j + 1)
' I0 c; B: l( C! p. B4 v+ x& X]' J/ a1 a& h, t3 \$ }* v5 N
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 ))
" U! j$ s/ _7 W5 n
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4 \* h8 @" C, v d$ @) F8 Elet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
* [8 \3 q7 u2 z2 [( };;及时更新i对l的评价质量的评价
; V7 u" P! H3 `1 c% t8 dset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]$ R! R1 x" d9 r, K7 `
set l (l + 1)
# p! a$ G0 P( ^; t- _' d: E7 o]6 G }# a u; C" w& k# k8 y3 V7 V
end+ g( R l* f# f/ m2 f+ j1 v
$ b8 x3 V" R5 e% ~, z' {to update-credibility-list3 W: c# j' M' a, N4 b9 M
let i 0
+ I4 y) C4 g7 n# c% @9 Xwhile[i < people]
1 ?* L6 b9 X E3 e- f[( b* k `0 l" X0 w& s. R
let j 0* b/ ]' Q! j: E9 m- b- }( f, l( T" ^$ U% L
let note 08 L5 v, M5 G% N4 D% W
let k 0& |$ w, Q0 w# x2 l
;;计作出过评价的邻居节点的数目
7 m6 R D; d+ n; s7 Vwhile[j < people]6 D1 ]: F ]" k, g
[9 F! a+ t; z; p: W. X
if (item j( [credibility] of turtle (i + 1)) != -1)
9 O( U( N! r. ]* G; u;;判断是否给本turtle的评价质量做出过评价的节点! a i& h, v" K
[set note (note + item j ([credibility]of turtle (i + 1)))! L3 y% X& t/ J/ N. O# v6 j
;;*(exp (-(people - 2)))/(people - 2))]
2 @ d& R* U+ R, N8 u9 L; eset k (k + 1)8 {; g9 s6 a& K' t/ ~" v7 U
]
! V! L1 j( ~6 |8 pset j (j + 1)! z3 O/ j% U6 B8 p% z* k
]
/ L' L; B: b, p1 Vset note (note *(exp (- (1 / k)))/ k)5 E+ x4 n, \; X5 l! b2 j
set credibility-list (replace-item i credibility-list note)4 J7 V( |+ ^7 o
set i (i + 1)) J& O% d2 ?! T; O0 E+ e
]
- C9 H. ]0 s" I. T$ P6 k- h0 pend
& z i+ L0 e& \5 P2 Q- c' @( A8 Y5 [: \* a
to update-global-reputation-list' r( q" q0 X, U& w9 s7 d
let j 0
% [5 p& U1 }4 \8 B" P- ~# P% hwhile[j < people]
6 S) G. O( @1 U. h. i2 u' h' c[
; u7 \7 n4 i4 a vlet new 0- Z# l4 D# d5 b3 P2 f# M
;;暂存新的一个全局声誉& n z* B( `4 g2 {# T
let i 03 G$ A3 Y! K4 N1 y. O
let sum-money 0
9 ~" V7 H: c5 z( jlet credibility-money 0% n& s' U0 ^, P: x' Q
while [i < people]6 w( P" h9 Y3 V p
[
! i+ i/ h ]/ C3 V( e, Z% e- @set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))7 m% G' t5 a' S* @/ u1 _7 y& e0 f5 Y
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 J) J. k1 k1 z2 J6 Cset i (i + 1)- A" v7 p, y1 i, F; O1 z
]1 ^1 t2 {2 n" y7 [9 @( }
let k 00 C2 w) a# `, Q H
let new1 0
8 y8 u: f9 \" V. i& n5 v, zwhile [k < people]
% y# R8 m: |/ o[2 C8 T& v/ x' Q$ P
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)9 U; n7 _& {4 _% t$ g
set k (k + 1)
2 D) w% Y% x" D, ]]) M* {% t0 A# k
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 E! r4 N; v& F% s- Q. Tset global-reputation-list (replace-item j global-reputation-list new)8 v" l+ k! V _0 z
set j (j + 1)
6 }$ Z( g; T% T& u]
: P* I- ~) {8 Z! g) U. D* s* Z; send5 [1 s7 X7 \4 _6 z5 M6 ^( h5 Z
: O1 X+ Q5 Y. _8 k3 J7 y9 O7 j# Q; M& R: {% ^& _" X& d2 Q
1 j* y3 j$ J5 Wto get-color: Q! L+ ~9 [- V. a+ Z
; Z0 D- }) _3 z- Y, vset color blue
2 d# o$ c1 e4 c$ g$ `" qend5 T+ d p- y& g5 X% O& s( S
( ?9 Y" G4 Q/ t! l ^
to poll-class. R' j5 O0 W0 s" _- D
end
2 [* t6 v& V; o7 K8 x& t4 p0 ~' F
to setup-plot1) X6 U3 b+ L( k
, U! Y+ B/ U" m5 i9 G# p' jset-current-plot "Trends-of-Local-reputation": Y/ N: v# |0 m
2 T% ~" R( P% Gset-plot-x-range 0 xmax
- g9 d3 h4 {1 s& a% Q
. ^5 ~3 A* C& W3 eset-plot-y-range 0.0 ymax( }, T2 r) m2 T) m
end
/ r' Y8 A+ x" _* l/ j) Y* E* U* V* t9 G4 r' X
to setup-plot2; x9 ^$ S" B3 F+ ^8 u N) B- d
' x: U. C! z2 q2 E/ eset-current-plot "Trends-of-global-reputation": D$ v4 V4 J! j
4 u( @% m5 w k D8 T5 Y& C
set-plot-x-range 0 xmax
, p: g' t9 c0 g' N9 Q4 W8 E7 o7 g$ L+ {5 s8 G9 d; @
set-plot-y-range 0.0 ymax w" h( G! v3 s( }- ?; H8 _& B
end' C5 G( A5 \( V! N- e A
+ f2 O* ?4 K. C1 Q( |: w& T8 W
to setup-plot3
( Z1 I! S2 p1 C; ?" d1 e5 a: M1 }0 m
set-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax' r `2 j0 p% g9 ]+ B+ y
9 i) W8 i0 Z) o
set-plot-y-range 0.0 ymax
; }. t" `. }3 Y2 bend
8 F# A3 G7 G" ]& V$ | M t+ P( L3 X4 \
to do-plots
9 k. X' p" M& a4 ]* R: S& {2 Vset-current-plot "Trends-of-Local-reputation"2 F9 V& E/ r: a- F: H7 s) {' b& w
set-current-plot-pen "Honest service"
0 M3 h# \6 [9 y: _9 ^/ ?- V z6 u8 {end/ _8 p: b1 W% K$ G: n, I
# t0 k. P) N0 A6 |, E4 j[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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