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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 R' c: g" `# m
globals[3 l, p, G, q8 v+ v/ a
xmax) I1 s9 d+ g' A- p) s
ymax: E t, X3 i8 b! o6 @" Y t2 d
global-reputation-list1 X) G: _9 R' _- T; n0 R& C
1 h9 W, Y( g8 e
;;每一个turtle的全局声誉都存在此LIST中
+ d: r) z% `9 G* ucredibility-list
, ~, c0 x) B' C% v4 |) O1 [;;每一个turtle的评价可信度
4 O0 W, v U/ C, b, shonest-service8 S% Q o+ o- y% w. i
unhonest-service$ Y* m \ _# f, f/ b
oscillation1 ]0 q( X( t5 _9 S
rand-dynamic1 e) h% n% P6 ?
]; I y& }# ~% c1 i n/ c/ W
7 e: R8 T+ i) l0 V* {
turtles-own[
, l+ Y X4 Q. W: c! Y$ [trade-record-all
/ g6 E2 {, z7 f. u- S! d;;a list of lists,由trade-record-one组成
. j; k4 U4 i- Itrade-record-one' d' `* J! p" X3 p" W
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录: a$ p4 \+ U; i) {( z7 \5 b8 r
. P6 B! d' I3 f
;;[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]]
' x: ]5 A$ ~3 gtrade-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]
, i) P: A' L" D) ~2 r4 Bcredibility-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( g% X0 k: l1 y( \
neighbor-total: p$ m- i3 w9 X$ Y l0 f9 s
;;记录该turtle的邻居节点的数目( k) L- k! E; h; y6 A2 l
trade-time8 s$ P, }0 A* o5 T. h2 F
;;当前发生交易的turtle的交易时间' H5 p3 X8 f S- s {4 z3 @
appraise-give
5 @/ ?) B$ z3 y) J$ n% |" {;;当前发生交易时给出的评价
9 S9 D- v; O+ [- R0 i! C% mappraise-receive: r6 a2 g4 s5 a$ u
;;当前发生交易时收到的评价1 I% R1 U9 v3 E5 `
appraise-time
% y d7 `: k9 g;;当前发生交易时的评价时间
1 X2 j, V8 v1 R8 z, h5 R- @local-reputation-now;;此次交易后相对于对方turtle的局部声誉: k- D$ ~' `' p7 j( P% s0 G
trade-times-total
- q# w7 d" N% [. F;;与当前turtle的交易总次数7 l. h& i Q* Z5 a" I/ M p
trade-money-total% z+ v; P y: c) M
;;与当前turtle的交易总金额
; b* H9 K3 F, v8 q2 Elocal-reputation4 h* E9 S+ L m, |5 ]
global-reputation! l* u( i* P/ z8 I: ]+ b/ I
credibility
8 Z6 m, |+ Q" d) C( I;;评价可信度,每次交易后都需要更新
' A: j% q& Q3 N0 P8 g9 ocredibility-all
3 ]5 U6 G/ `- {' K6 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
" A' O c5 o& ^6 B$ K2 _6 D& f# k9 @. i, 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! {! Q$ V. g% d6 E1 e! j6 ?
credibility-one
) e! t5 A3 y' m) J;;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
8 J6 F# B# Z1 q0 {: }5 G6 G D; xglobal-proportion+ Y/ M* v2 o* r& M. m" D, V
customer
: a2 s8 C4 H' ~& _. N* W2 P4 }customer-no E. y. Z/ a b- `% n) z, D
trust-ok" ]" E8 e- X* U% s5 L, \# h
trade-record-one-len;;trade-record-one的长度
8 x3 A/ h) ?! A2 v) ~/ |; Q]; D4 z/ R" z( }
) Y/ i t5 z6 K0 ~
;;setup procedure$ n" H2 s5 R7 y
3 E; z0 m$ X, ]! ~( |
to setup
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* d& ^, @$ q/ q) p1 p* Wca
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$ z, S9 B: _& ]# v( |initialize-settings
* z( |* V: Y* c p) c
0 A3 L% A( \3 T4 f/ rcrt people [setup-turtles]) q7 \( Y6 v3 |! a2 o
9 [ T+ W( W* J" X3 L. R- g7 [5 f- Rreset-timer
( A. h4 d E6 j2 l7 ~& J
2 p6 X( s% a2 u' ?poll-class( ]2 J9 t' v* s+ o& n! k
& x$ F7 ?: L/ K, V7 Esetup-plots/ X# J' O0 {, v7 ^7 B
* v/ o3 I9 V7 \1 ~
do-plots0 { ^( A2 U/ q$ t/ K! [- e
end: K6 o5 R# u( i- L, I
1 M W& X4 w: a/ u% ^; uto initialize-settings7 X: w1 }: I0 {8 j' m% v
; R6 ]' x, s8 `set global-reputation-list []: }# w5 u! U% ]1 ^! }8 R
# j5 k8 e# r( G8 S; J# m3 w* iset credibility-list n-values people [0.5]
* T) }4 F7 E3 d% A0 n0 t4 s/ \4 w" g0 O& ?& Q& `" _- i
set honest-service 0/ {" \/ |8 ^, S7 P. Y) A
# S. ~. Z* u: w" c7 {set unhonest-service 09 [% e! j/ U" U V! A) }+ {9 a1 t
$ R) N E4 r) H5 T) }3 B0 e) eset oscillation 0
2 A' B& U4 `1 R. k0 Z
3 p2 f" N# v) g& eset rand-dynamic 0
/ {( z$ S2 [ zend
- Y1 f# r; G( {% k) b Y
! Y. y9 z, ^3 t1 K' }! Z2 ~! g& Ito setup-turtles
9 k" Q7 C0 ^. k" m. i$ rset shape "person"
' ~! E( ^" W' O8 w: tsetxy random-xcor random-ycor
$ b5 K5 L% B' P5 u! X4 Q$ y0 `4 Oset trade-record-one []
/ \, F$ o6 D( u8 @/ U5 T& ?: \7 ?! b7 H
set trade-record-all n-values people [(list (? + 1) 0 0)] & U7 D$ D4 b' O" j1 e
. O# B7 h' O% j4 s3 k& U
set trade-record-current []* [) y3 B: G$ n) |; `* p
set credibility-receive []5 p" }# @: ~+ w
set local-reputation 0.5, G* X/ K5 `' N1 |# f" E5 ]
set neighbor-total 06 g. ^7 k( O4 a# O# M
set trade-times-total 0
( ~. x2 J1 _9 q+ hset trade-money-total 0: }1 C5 r$ J6 V h0 @
set customer nobody% N) F& ~! R) w; \$ \2 Y
set credibility-all n-values people [creat-credibility]
/ @0 R4 f5 H( d0 z) ^0 Hset credibility n-values people [-1]# G: T1 ]4 _! a8 u, H
get-color
4 r ?6 ?' W0 w! S; f: G, G( d" }. @ {# ^$ {7 n+ i
end
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to-report creat-credibility0 I. H" u h1 ?/ H- O' D& U
report n-values people [0.5]
$ W( i$ O' L9 X& w* Hend: |) p+ Q, P3 X& }( }7 U
9 L) r+ H( W4 m8 j, l3 eto setup-plots7 U/ U, B5 D" p9 p9 L" z
) {5 ?* \, q# jset xmax 30
; s; X9 _ t8 ^& Y
2 P: `8 [7 {' ]# R f( ] xset ymax 1.0
! a9 B. U( I Z0 V, B3 y
& N4 M7 o- r* m$ aclear-all-plots5 G8 u( I) [/ |1 k5 N- g" c. |( c
. |$ K2 M3 {3 X" ^8 tsetup-plot1( i. a$ R; b, w2 F: y2 U7 o
' _, V3 x! k1 {1 D9 W8 e
setup-plot2' H; o. B7 J1 M# o$ e4 D) b5 _
. l- p. D; i, e% ~6 L0 asetup-plot3
& s/ B) D- n+ T! o' b6 Z. P* Gend4 ]' i$ r( k5 v1 Q4 s! h6 P0 }
) |& S/ X: D" L;;run time procedures! w$ i. b% ?$ Z1 c5 p/ M
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to go
+ l4 ~6 D8 Q6 b ^% f) ]* o: E/ v$ A7 h7 D+ [! J4 p
ask turtles [do-business]
p$ P' g& e& z- S7 c/ o! Xend
+ R5 T; R! T4 {3 M4 n5 n5 Q2 c
0 k S) B b# S; Ato do-business
6 L, z M } n1 T% A$ U. |: ~4 a/ T0 m* {, s+ N. ^1 X
) g- O! i% z m2 |/ m* J
rt random 360 f3 }& L! t( D( m0 n& ~0 ~
3 q( @+ c' |, q8 O$ D
fd 15 ~, ]$ z Z1 W4 [
- S1 u: z' n* `3 vifelse(other turtles-here != nobody)[
q* v/ C: `, q" f
, E; r) d( `" ]set customer one-of other turtles-here4 I+ u% B! j9 M0 I
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;; set [customer] of customer myself
; `5 B; B2 B8 B9 B
! H8 G' D) R* i# @9 b+ e* H9 Rset [trade-record-one] of self item (([who] of customer) - 1)
% S. D1 I6 c* Y8 ` r$ ?2 ][trade-record-all]of self8 ]' `7 { E% q1 G7 k
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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& B6 n7 G3 R/ m* E9 T0 c! Uset [trade-record-one] of customer item (([who] of self) - 1)
0 c$ }3 j0 c) ~+ G+ h[trade-record-all]of customer3 Q% u+ ~( l. W, R: Y( {, P
7 t% ~- D! s4 |! Aset [trade-record-one-len] of self length [trade-record-one] of self
* {5 V% G) x* Y; u* e4 ^* B: u+ @+ C4 x/ X3 h% w) l9 ~- n1 d
set trade-record-current( list (timer) (random money-upper-limit))3 E% P7 e( o4 U: [
% Z# W# i) H6 u7 B" qask self [do-trust]. K, a! H8 q# k# m' ~
;;先求i对j的信任度4 t6 J7 W! P9 ?5 U. Q
$ |9 @& Z$ \' y! @% A Q! kif ([trust-ok] of self); }) A+ N" @- M1 _: h3 {; D6 W
;;根据i对j的信任度来决定是否与j进行交易[( q' h; I0 o$ n; P3 p% _2 l
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
6 ~: t& r+ f( r9 @1 V3 q3 D: e2 q) E" y" f# D( |3 [8 S
[$ V2 T( _/ v, O( l' e
4 i5 T# J& u" |' Kdo-trade+ m1 [( ]# G' w
& k# w. e9 q* e3 g+ w. q
update-credibility-ijl
: V; F9 i4 N* X% I; J% `4 k8 a( J; x: R- C6 W
update-credibility-list' n0 B0 t6 }4 O$ s
6 @' m) D( s! e$ w& i
4 ~$ L# X- W! B; L# lupdate-global-reputation-list3 @8 Z- ?0 }0 g& j6 ?+ `1 ?+ R
$ a, M# i9 {2 ~. X' a4 o9 {
poll-class
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get-color
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]]
* u. l& P9 z% S0 `/ @# G9 j# o" r' v p) V2 ~
;;如果所得的信任度满足条件,则进行交易& Q% m4 r# F3 A( C& S0 E. H
( A' s1 U7 ^& v! H3 G
[6 z2 ?0 J4 M3 N% [* }; H" L: i) Z
/ R/ G$ y3 A# N4 irt random 3600 `6 c# V6 G) S% w+ h- m
/ m8 l: {7 @( A- Z6 A3 c6 H& l) E$ S% y
fd 1
- q H/ z1 C3 t7 S9 I! w( g( O7 Z4 P5 P( `
]% U7 J7 ~& w7 \" C$ G
$ u( u' p( R8 W/ `+ A
end
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8 a* }- f0 s: S) w" b" Kto do-trust
1 I+ J* ?3 b7 k0 n* E0 wset trust-ok False. C* j' J" i6 e4 i* b
, [3 n3 ]4 P2 B' T0 a
) U" S3 o' `, b/ r k6 U4 ?2 t$ plet max-trade-times 0: H: s6 \3 C3 {, w$ X/ Y
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]9 n; z# p. i, |- Z6 T
let max-trade-money 0/ f2 f# a' p+ W+ t7 z, t
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]. w3 } W1 H/ a: N3 a1 y8 N5 `
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))/ J1 ^1 g: B3 @0 O1 L5 A
( B, F4 O% C) s' i8 t; ], V
5 c5 F% A6 B8 P Z7 j. X/ @) }get-global-proportion
0 R' t' U1 H+ H& v4 ^let trust-value I7 K4 P( U a( i! S( P
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)- i! w" H4 F8 s
if(trust-value > trade-trust-value)
7 `, i- I. o7 l- N3 g[set trust-ok true]
% G R0 L9 q0 X2 Xend
( W' G# p4 D/ {9 z
) [/ u5 E; H9 z- R; J8 l3 Xto get-global-proportion: y- n. `2 x- }' e, m
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
3 c# {. p6 P9 e[set global-proportion 0]
& B" p! D$ r# F8 h @5 Q* W[let i 09 D/ W/ W- Y, A; [
let sum-money 0) G* I% j5 Y+ b4 p5 e$ W8 D9 m
while[ i < people]
# Q& z" h* k, P# @# D[
' n+ ` j+ x2 q5 O. y& fif( length (item i
( a8 u2 }5 e1 |[trade-record-all] of customer) > 3 )) Y5 O+ @: Y- a/ q6 K" B! @9 Z V
[; b( x7 c7 y4 Y4 e' R
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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]
: \! j* ~ G6 i/ T! @' @let j 0
/ d+ [5 l9 w& Z1 Wlet note 0
1 N* a, }3 N) u7 B7 owhile[ j < people]
# ]7 b, L9 H, U0 X! B[$ M& u" C, L' X
if( length (item i
" z* B! q2 Y5 l: H& e2 `$ e[trade-record-all] of customer) > 3 )' k( A4 B3 ~" b% ?
[
\+ F! t( e! bifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)9 b B- @; C! D7 ?: ?
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)], q! k ?2 \& w% i4 R" U" X' L
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]. L/ e. ]- l. M7 T1 q7 Q6 d
]
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set global-proportion note
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end5 r/ F( [* d- [% ~
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to do-trade6 G4 e- }6 ?$ A w* O3 e
;;这个过程实际上是给双方作出评价的过程
9 y0 N- S8 e9 _5 ]1 @+ v) hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
1 _2 H) j* M4 O: d4 c' wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
# _) m7 X6 q# Mset trade-record-current lput(timer) trade-record-current
' f5 X5 ~) ]: W! V! p8 j. e;;评价时间
6 H8 x8 [. \1 H; n3 task myself [
8 Z% i4 h/ v. A0 g7 v. A Fupdate-local-reputation
! K1 }( ^8 `; ~% aset trade-record-current lput([local-reputation] of myself) trade-record-current( r2 f. d0 B* E; }
]
% q3 s# ^$ U! T8 B3 D& Eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) i. [/ s7 z) l: r
;;将此次交易的记录加入到trade-record-one中
1 o1 n* M! @; O9 `+ u4 fset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 Q8 v# h y5 k: I, m( N6 \" K6 t
let note (item 2 trade-record-current )+ v$ q( [! d" y' z. R4 j
set trade-record-current( n0 l& T( I: ^" L5 z( R
(replace-item 2 trade-record-current (item 3 trade-record-current))
8 z; U- Q7 h5 }& ^set trade-record-current# I+ A4 e" S- \+ r
(replace-item 3 trade-record-current note)
: i' v, a9 o9 H1 {: ^' k3 W$ e
- _" {( c' z: l$ ~1 ~8 Wask customer [
' g- j) S' H. c# Uupdate-local-reputation* ] Y+ e; W& l9 p9 v
set trade-record-current
! r# c- T- \0 X8 G/ l" ~! P2 @(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) * m. ]5 M. a( b
] g; V& E8 g1 w
& @4 _1 x- O( S7 I
! a& |2 {$ b4 V K
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
( f a3 D0 p; b3 k5 Q/ o% q) ]! R, j7 U2 I( {& S3 x+ g9 Y
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ l. m- y, j- a5 D;;将此次交易的记录加入到customer的trade-record-all中
" x/ x5 I) o3 S; ~, H3 Q& }end
& f! L$ d! k" |( i
- D5 x# B* W$ a' eto update-local-reputation9 B) {: a, _6 Y
set [trade-record-one-len] of myself length [trade-record-one] of myself
J& u! N1 l; K1 ?1 w1 P. Y! [3 M5 ^, L; D T8 U
% H7 V& ?2 i7 E$ U
;;if [trade-record-one-len] of myself > 3 * H; c* z& z7 B) h4 f
update-neighbor-total2 f: ^) p! d5 H& B
;;更新邻居节点的数目,在此进行
( Y$ T F7 }' Y. t! flet i 3
- f+ T8 e' O$ L1 y6 r5 Flet sum-time 09 H& z) B( Y) Y0 i: H, s
while[i < [trade-record-one-len] of myself]
7 R; Q1 h0 A2 Z0 U; L[, j2 }% N- e; P# v5 k- b
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
! ~2 s/ U7 I( i+ H- s. K8 h& F: aset i" ` W F8 @4 s% l
( i + 1): M; A4 [: }# |: N6 \; j
]$ J, W! g- G. w; a4 q$ C; V
let j 3
A* \1 q5 K2 I% i, n- L1 Dlet sum-money 0! n- j; D0 s: ?$ s! b, u- b
while[j < [trade-record-one-len] of myself]
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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* ]4 P* w$ X- l
set j* j p' u5 k3 O3 S
( j + 1)
W; L3 c" s; B7 v% t]
1 U3 @' `+ S3 g0 F+ Olet k 3( h' C8 ?6 j, C
let power 0
3 A& s; t- R5 V' Z0 b. plet local 0
& R4 R* g$ u5 p8 q/ k: {while [k <[trade-record-one-len] of myself]" b9 S {- B" s; @
[
$ w, G5 w. e6 J8 m* @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)
+ H' O, _; ~7 w, _! Q% w( Uset k (k + 1); h4 L; o8 |1 ~$ Y* X* f
]
( a/ L% e& p# S5 S8 H& ?set [local-reputation] of myself (local)
6 w$ _) E4 T+ `6 ]# Kend0 c) u3 B/ Y1 r: @: F. g) i
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to update-neighbor-total
6 i: x6 s( V8 b
% C- ~7 H' ~* W# g$ L6 s M: q! R7 Aif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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# @/ G$ }3 C- s7 w. Zend' q( t4 E. o6 F
8 `' z! E4 n" i8 [% m/ v& ?to update-credibility-ijl + j6 X. k, V1 N% D, y* j! N7 E! l; I
5 R4 r4 p- [# t. [7 q$ @$ d
;;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。
+ [* l" y$ c( ^+ _) Flet l 01 |# O& d$ H# S0 ~' s7 K
while[ l < people ]
; q6 {* e! k- e1 v ^6 G;;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
3 D6 r) _! a( ?6 ~3 s2 i5 F[
/ _" s/ s% I3 O! Mlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
' R0 v8 S3 t1 ^) k* |if (trade-record-one-j-l-len > 3)
- w7 _0 ^) ?) x# 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% H8 N1 z. J$ l2 |. j
let i 3
, o5 C7 H' }4 M2 v' Ylet sum-time 0: L' n, ]* k4 u7 `8 {8 h7 \! ]
while[i < trade-record-one-len]( B3 B$ }& U1 I$ e1 G; w4 Y% W
[; \( l( W% ?7 k) f2 M
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )8 {6 V* @7 B3 G6 q0 B, j5 k
set i
( [% o P) w; c3 o. i" I) t( i + 1)& s: U+ l+ n# O' c) N4 N' O
]
7 _+ s I: S: g! R2 [let credibility-i-j-l 0
# {5 x8 g* D/ W K5 s" m: F* f;;i评价(j对jl的评价)
$ Z) H3 ~ g( S1 V9 O+ `+ `! zlet j 3
) T1 d. d2 W+ I7 ^/ `. Hlet k 4
- s9 O- L% l3 X+ J8 xwhile[j < trade-record-one-len]8 X) h5 F# y! v+ ]$ ~' g+ ?
[3 v, p V) O2 h; C
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
9 V, d1 y+ t0 B8 jset 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)6 b3 b- \( Q2 N; f$ j
set j
( }' h5 d: m4 g+ A/ z/ \( j + 1)
S" q. b, q! y9 l- g]
! s0 k/ k$ J/ P# ?3 h3 B1 ]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 ))- ]( w6 |- V$ ]) m- d4 d
3 ]2 x$ R# R0 }5 v( Y
+ _: V8 N3 k7 M, q; K9 Q0 nlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))7 ]2 ?8 f4 B+ q& | E: u" Q8 n
;;及时更新i对l的评价质量的评价
6 @, m. o: P% f- k9 B2 Zset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]: R& Y& e3 N1 k. G" g5 B- I
set l (l + 1)
7 g h7 x% e2 v1 a4 v* y]% ?) A( J8 ` @6 d
end6 B: D: q6 e8 A/ M; V- u
" q+ u. [# k: Y8 _ P& y% l
to update-credibility-list' ]2 G8 Q3 p* K2 H* E0 t5 M5 E
let i 0
6 Z; O# w4 r9 A- Xwhile[i < people]5 t$ d0 U+ D0 M# w, s
[
% _; ]* L5 Y# g9 r$ e) ^let j 0
5 z% u+ U5 Q3 ?! {9 X* }let note 0
" u7 y& R' q9 Y5 W( ~' C6 qlet k 0
( N& u, ^0 [, c) S9 [;;计作出过评价的邻居节点的数目- y7 n+ k3 E9 c1 I, g F
while[j < people]
/ B& y) {5 j1 \& X; Y[4 K: \9 q$ F9 S, i
if (item j( [credibility] of turtle (i + 1)) != -1)
1 ~$ b& n* F( X7 D;;判断是否给本turtle的评价质量做出过评价的节点/ F& K$ [/ t& { ?0 s; `
[set note (note + item j ([credibility]of turtle (i + 1)))( W- G5 m( k& d
;;*(exp (-(people - 2)))/(people - 2))]
$ h' a; p& [' E& t+ mset k (k + 1)
- s2 d( z( m. a( r0 r! i* p]+ z0 g' z5 s$ N6 G4 c$ _
set j (j + 1)
4 _0 I3 G, ^2 b]% ^2 H" J1 Q, y" z
set note (note *(exp (- (1 / k)))/ k). U$ X3 m" p3 d* F4 a# X
set credibility-list (replace-item i credibility-list note)7 S7 H. k8 E2 p5 U( p$ l2 p& ^& I* F& u6 M
set i (i + 1)' S+ O8 _: q3 E; A( \# {
]
6 I# f7 c' o J; Send) I: t4 {8 X+ M) h1 F% K9 C
. T$ V% u* E) o0 w& a, wto update-global-reputation-list
) X( ~, ?7 w6 B( G U. }let j 0
; g p% g _2 \. U" O: \0 h3 k: ]while[j < people]
# H* R( } ]! p& q, f, x[6 T$ I* T; A3 H; E# c
let new 0
5 V' z4 w3 s6 o;;暂存新的一个全局声誉5 t! G( y( E, A& c
let i 0
7 q5 q# v# v# a7 K; Z# q+ a9 Y6 jlet sum-money 0! i% u/ W# P) @2 R& f- O
let credibility-money 0
; ` q$ m( P9 m4 F% hwhile [i < people]
, f$ M' M9 r9 |2 I* n' Y[+ O* a* n6 z6 k' t a5 a
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))4 [8 w0 }: X' ]* ~
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
( O+ Q& D9 | f6 r, X2 Y* ^set i (i + 1): A0 a/ G8 R( h9 ]) T& Y' a
]$ p% y5 v& f) d
let k 06 O5 w, {( E7 g& n; ?, M1 }7 @
let new1 0
9 Q. q7 U$ ]0 T7 S5 k% }& twhile [k < people]
; [/ Q% {) D$ F8 ^! J% e[
9 C0 i4 \1 _" A3 `! g+ ?3 }# iset 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)% S# @4 {7 f0 l( t
set k (k + 1)
& H& u# R' V, a1 {]: D1 T/ Z+ a' E
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
7 _$ [6 o5 H( B( `% _set global-reputation-list (replace-item j global-reputation-list new)
; L) B$ p3 R4 A' ?) c+ C% r! bset j (j + 1)1 } g9 o0 }5 Z1 n, x* o3 f
]- K2 T# x! @2 D0 d
end
% Q0 B3 D( w: o5 M0 l& J/ K
! i) z; ^+ K' ?: ^! {
. Z5 D0 t0 b# m8 s( a! _( m7 \! [
8 f% ^: h# o, h. n! s/ W2 Sto get-color
: B g" b' h# M+ S
" _3 P1 s: ~/ R W; gset color blue
) J- H% z. T0 x9 N" zend
# Q% V: l+ V6 |2 K' x& B0 [' m+ y6 t& G5 y
to poll-class
1 K& U/ I+ h. d; H+ l' _4 g/ \7 R2 ? \end% i! I5 ~1 K# ?1 X
2 H7 \) p0 w! T3 R
to setup-plot1
* R+ f9 j% r3 H
! V# @+ k' {9 U/ _0 F2 eset-current-plot "Trends-of-Local-reputation"
7 E( e6 T1 i, x9 }1 q( J# i4 G, a0 ]: a- M
set-plot-x-range 0 xmax
6 O7 a1 |% P2 z8 y: l P9 L4 o" l% `' Y' n; c# U2 \# v4 }
set-plot-y-range 0.0 ymax
# q- P7 {) t) c/ K" gend8 j9 \* f+ C2 {3 X( j& ], h' \. Z
; {4 I% V6 A6 rto setup-plot2
6 G# ?+ K3 u8 A3 C$ W: S
0 j; U* i# e) {/ l' R0 x3 a) Y+ g9 dset-current-plot "Trends-of-global-reputation"
8 B3 A) K: v9 h$ k, I+ }6 ^; t) P* Q6 G
set-plot-x-range 0 xmax, p9 w' I9 n7 B+ K9 _
8 P2 t& Q* X) t: M& Q- M; _6 `
set-plot-y-range 0.0 ymax+ Y4 B/ H4 v6 s$ i/ V5 A# }! D% s
end
# e/ B4 P8 O F) ^# w: ^8 J, u. W! s' p
to setup-plot3, L! F( _- P1 C5 N
( i- e/ h% S5 c2 I( \" j. `+ l" ?set-current-plot "Trends-of-credibility"
# i8 r; a4 \- K y7 E o& ^1 \& S* e, b
set-plot-x-range 0 xmax
3 X8 u8 T7 x/ F
3 s" J* j6 e" s4 _. i" rset-plot-y-range 0.0 ymax6 h4 [( H! ^+ Q9 s/ G
end. i+ @! }, _; H1 J' M7 }/ b
3 g+ a$ U! m; q. U. Rto do-plots
/ X8 D- P4 d( r+ ?4 t' @& dset-current-plot "Trends-of-Local-reputation"
g: { @/ |6 W0 j: { O, m G$ Y7 }set-current-plot-pen "Honest service"% G% c* }% @; S y" M
end
: k7 F. G+ b: q. J0 ?/ W, U* k) s% P+ V
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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