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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# e% E9 R8 N+ l" A
globals[( M" E, v% E. w7 i
xmax
) Y g; A( h8 [; f: Symax* D- I0 Y; ^7 a" [2 X5 X! L$ t
global-reputation-list' n f2 Y, P' V0 l
) z x! E4 Z0 @; C
;;每一个turtle的全局声誉都存在此LIST中! Z( ?% G) l' h# {! T7 \
credibility-list8 y4 n2 X0 m) ?6 D; Q
;;每一个turtle的评价可信度: Y. N* P: s# Q: g W
honest-service
& v" z8 D% ?% F( U% B H5 }; B5 qunhonest-service
, ~1 |% _ }8 ]" ~8 M# e! W3 Loscillation
% F0 v# a" v$ p1 {! K5 D& crand-dynamic% a- T" q% P; i h9 r. _
]& G4 b# x: v' E
: J4 T* ^/ `7 Vturtles-own[
5 l1 N( F7 V3 `$ d0 }- x1 h3 u x& \trade-record-all
8 [2 c3 b: a4 k: }4 u! W* t;;a list of lists,由trade-record-one组成" p8 h; ]& L- r) S( @
trade-record-one) l; M3 `6 M* ?2 s9 B1 }
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录- @$ d5 {9 `% [9 G: [ n- v
6 G1 w6 I( X; s+ ]9 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]]. h+ Y! C& o) X5 H3 q
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]
1 C3 g/ w1 [5 Ocredibility-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
8 Q' U# y) C. ~7 vneighbor-total
4 l, K. g% m, e/ e$ t' G* m;;记录该turtle的邻居节点的数目
% _+ c3 u" e) n* j, ?/ rtrade-time, K" o) q8 z/ L- H
;;当前发生交易的turtle的交易时间
2 g' [2 F" b, }appraise-give
" [5 h& M* v- |( b;;当前发生交易时给出的评价
& V3 E7 u$ X$ ~appraise-receive( ?0 w/ o& q6 J. Z' I
;;当前发生交易时收到的评价
$ g7 C" Q! C6 [/ N( g" E3 Mappraise-time
M3 H4 O. e9 t+ V3 m _;;当前发生交易时的评价时间: d$ [. l! r0 A8 z" U, X6 H' \' o
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
/ F5 k7 |3 W- P, q6 @trade-times-total1 A9 R S6 }1 d* s( K6 \$ D
;;与当前turtle的交易总次数# G! t0 O3 D ]2 [
trade-money-total
) _2 H; g+ i, ~;;与当前turtle的交易总金额' R4 S" u2 [5 c
local-reputation# N% ^ u+ G+ C# e
global-reputation: x, y" h& |$ y; l6 z4 W
credibility7 O; H D2 r1 J8 I/ @
;;评价可信度,每次交易后都需要更新1 {) v& K4 q' [8 _0 I& t
credibility-all
4 v6 W8 `5 P0 ^. D;;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
( }& W' s) q$ H) H( | ?2 W6 z' ?+ c! W- 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' t% M( x7 [0 Y0 @, H
credibility-one
) [- U; m" ` c# 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9 D* u' h8 ]$ } n
global-proportion7 n" O+ k( u) C4 _: u
customer5 r; ^6 B4 N& _9 X: T3 L
customer-no ^7 W6 w. `% X2 S/ T$ o& S
trust-ok
/ {1 S% [3 I) I7 E$ U* G3 B* L! strade-record-one-len;;trade-record-one的长度. x% u6 ~$ K; T
]
! O0 @ e8 u& Z9 v% U9 Y3 G1 s1 Q3 T& O- B9 P, S3 o
;;setup procedure
& K4 K- B- `/ [0 U h2 }
* G+ a+ x0 V8 s8 }0 uto setup$ x& j0 {: V/ n2 s* ]: i
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ca1 H+ a. F7 l' D. [1 ?
5 p& {0 a2 s( s/ L& Qinitialize-settings
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crt people [setup-turtles]
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, ? o9 I, Z! G! x2 `1 V7 creset-timer
. Q- [- S& @4 G2 S2 D! @% ~9 ?9 [, s& ?5 K5 U, S/ `6 \; D+ F% ?
poll-class0 e+ S5 B, S3 J5 }
- Q( t9 s; }* M5 B
setup-plots
% D. y" N' k ]: p$ X8 k6 y6 k! z6 Y: I. F0 z* a/ `9 x' C M
do-plots9 ?7 x8 H$ Y8 d
end
; b2 A8 N1 |, h* g/ ]( s M e
& z! K9 [* R# c* Y% Zto initialize-settings
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4 q8 n* K5 `( r3 Qset global-reputation-list [], u# V+ k9 U( r3 L
. T( m. Y( a$ u8 |set credibility-list n-values people [0.5]9 J8 K" S0 x, d8 r! I
& t* C3 m4 a9 X% L+ T+ ^7 k
set honest-service 0
! k+ F W# t# q* d d/ G5 Z A5 b0 [1 z7 i
set unhonest-service 0
( G# N f0 T; ?; J1 f8 H+ v4 E$ r. n) d B7 O
set oscillation 0
y% u |# h8 L1 M- k
2 w- E; X v, Y" yset rand-dynamic 0+ {4 [! I/ e/ p9 b- }
end' W0 Y# M) N1 y4 X7 R' a1 s
+ n8 M) F8 c/ |: x) i4 h( qto setup-turtles 4 b! t! n# A7 h1 y
set shape "person"
& g+ `9 ~) k, U" S H7 ?& u( qsetxy random-xcor random-ycor. G3 U8 {$ F9 I
set trade-record-one []
2 D1 B+ \# V" e: N, ^1 J; g
/ D5 U- s, g6 E- W7 X0 b: D9 Dset trade-record-all n-values people [(list (? + 1) 0 0)] $ R, ^* B( t- c1 d" ^) b/ J
4 r5 F1 k' L: J' ]9 y
set trade-record-current []8 @1 h: \, y6 ~
set credibility-receive []
* M# O: l. F/ ]& o/ N" ?set local-reputation 0.5* x' A3 P8 l. f0 g1 m k5 N- P8 O( s$ G
set neighbor-total 0
* t3 F3 V" v$ N+ d$ tset trade-times-total 0
5 R6 R/ j: n* E8 x+ lset trade-money-total 0- k8 T B9 ~: I9 `" l& S
set customer nobody+ H/ \4 G) |# f' o; A
set credibility-all n-values people [creat-credibility]( e" a$ V3 N+ T8 G8 ]7 l
set credibility n-values people [-1]; r' ^- S; n1 G
get-color
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% @ I8 L( l4 M' `) K# @- m' Dend+ l3 C }2 F1 V5 {6 {2 D
& a" n+ o8 H! o- u" N3 _
to-report creat-credibility! ]" N) X1 Y9 Y6 n' w
report n-values people [0.5]
1 V3 D8 q4 t' a7 kend2 d9 J6 d' y8 z$ R. z+ T; n
' C* u& ~6 d- M K6 R3 Z: L nto setup-plots) F$ \2 x8 R8 y2 a0 ?
( H% w1 x7 G1 @3 q4 ^6 Aset xmax 30: [( j' ?3 g- ?' L+ d
8 z \% w* ~% @5 V* V! Z
set ymax 1.0& b6 n( D% p% f" i
$ r+ U3 r e: M/ {
clear-all-plots4 u4 }/ S( f( A& }1 `4 }
1 F9 w1 R- F, W2 H0 m$ a* \1 t" Xsetup-plot1
2 _& J/ L5 `5 ?7 m. {) T7 W0 y0 V. E2 l6 }; {7 i* }4 d3 ^
setup-plot2
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% i/ H+ ?5 S, X, x- q5 xsetup-plot3
0 `) h- ^6 T( `6 S, m, Yend
2 k2 q/ g [" o- o1 y2 H5 E" r8 X3 x- O( y- X
;;run time procedures* q+ @/ r9 @" H0 j; p5 C) {
' Y& t) O7 d: m- H, Y5 _to go
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ask turtles [do-business]# [7 ?3 B$ L* l
end1 U' `# r9 }& x1 R# @( P
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to do-business
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6 ~/ w1 e4 ~ h+ y4 Art random 360: g/ F9 c, }- j: J# C, q5 D
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fd 1! X$ ?1 n( r7 g1 c F/ o
1 c* ]9 j" Y% F- T# @4 }ifelse(other turtles-here != nobody)[
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, @$ V5 z6 [. b$ q8 zset customer one-of other turtles-here$ o: U* o. w$ n# z+ Q
) h* g( r! ?# V/ E+ s4 X;; set [customer] of customer myself: t2 g+ s2 p5 I: ~! W5 V
% I/ _0 t0 Q+ K% ^& Z( [set [trade-record-one] of self item (([who] of customer) - 1)
2 F& A2 Z' o. K! _! N) W[trade-record-all]of self
% r9 V, e) y' m |8 R;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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+ [7 y% ~* F J! o5 ]/ x4 dset [trade-record-one] of customer item (([who] of self) - 1)$ _+ [4 _5 F" b9 d3 r
[trade-record-all]of customer7 i( T0 s+ W. _
& ]" Q6 D' L1 r& m/ L4 Z( D
set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
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3 x* P. {, o, | B* Q" Gask self [do-trust]
/ O/ T. v/ o7 {% P6 @4 h;;先求i对j的信任度
. s @6 m3 V/ \ r$ y
9 ?* ~- S, `" ~" c7 Yif ([trust-ok] of self)$ k) {- K( c6 f. I! d/ Y
;;根据i对j的信任度来决定是否与j进行交易[
" J1 d3 N$ }% v0 t: Rask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself0 A$ D7 S: e( O4 r5 B7 X
- R4 C8 o+ s. E# z5 W/ y- V$ f[
2 ?) B% I: `3 s- M: m* b W, h# ?5 y3 m
do-trade7 r$ s: }- I7 k) l" }) B. M+ ^' q
) i! u9 M5 v; Y; dupdate-credibility-ijl
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update-credibility-list
8 v/ \" z1 R Z6 _8 u
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8 R; D/ c5 }- C, a% m" e" l& D% oupdate-global-reputation-list
5 O2 j* T! O- \8 q$ l |: r; ^
+ w7 m! P3 I0 upoll-class
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get-color
1 L, V4 E% H# r# S0 j6 t, K% z% r# g
]]
! Y6 s7 P* X6 l5 P3 X6 M$ b2 W" ^" j8 w% \$ Z6 x$ H9 _0 u
;;如果所得的信任度满足条件,则进行交易
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0 C" x/ W$ {3 o[$ g' L# M9 A. g. R# | f
( d7 `4 P. c5 a- @( {+ n6 }) P5 Ert random 3608 U: R) W( _. K; O2 V
7 E% \/ S, i( i: a9 C2 Efd 1
3 Z* V, P' k! o6 s
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end- a: Y/ o- a4 S) z8 {& h
! y" ~1 F+ }# G1 h8 ~ _' v7 ^* pto do-trust
; c8 ^( n1 ]9 C- U L+ B6 Sset trust-ok False
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let max-trade-times 0
0 q9 Q* l' L. r! c. ]foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]0 s( k2 ?1 X5 O) t% m
let max-trade-money 0/ |% p+ \/ f5 A
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
: f+ J8 P$ S) h2 Y" x! |" p; Glet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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5 o- x4 X) f" h& a+ m! o& {" r: q: D O. C Y {& U
get-global-proportion+ D8 g; ?) m* D9 o9 i
let trust-value7 D* y3 ^$ ~2 Y3 _: S
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)8 e+ r0 n" G" E+ U. c; P& u% g" }
if(trust-value > trade-trust-value)& K, _! {: R$ b* J1 i. z/ F+ l) W% i
[set trust-ok true]* ]8 _- K$ O7 g; ]* ^
end& }+ ? S# j4 R) z2 ]" J
3 ]4 T* H, H3 [9 f9 U
to get-global-proportion. x7 v4 j2 A6 W0 ^9 s
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)& g9 [, q+ [5 \) u4 ?% n
[set global-proportion 0]3 _' Q) L, Q7 X8 T3 B0 q9 R6 C
[let i 0
0 }1 W1 T9 }7 o% Mlet sum-money 08 r$ r5 V0 W0 H q, h: d
while[ i < people]
4 q$ G* m& m, r2 g- D) ^- N ~( m: k[4 e9 f; R7 l% Q p, m
if( length (item i( E3 o: B# z$ ]9 a/ H0 J! B
[trade-record-all] of customer) > 3 )2 M6 |& ]. T: P2 R* p
[5 S. Y3 G$ O$ }6 k# }
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))1 h7 ?" k p$ k8 k; a; X; w% B
]2 m A3 Q4 Z7 p) g8 C' ^2 K
]( x, A O _- B/ m
let j 0" G! A. |, t% Q& w
let note 0. k/ v2 t- b8 @- \+ j, e9 }
while[ j < people]
$ N, y% ]/ W, O$ c[
% V3 t7 r' ]6 c( M7 d$ z( r" iif( length (item i+ B0 Q$ |2 ~/ z$ t% h2 ^6 `# Z
[trade-record-all] of customer) > 3 )8 T' P+ }2 a0 x5 }: O* {7 F
[
_( m7 ]. x! w$ Xifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
& h9 @- Q6 h+ W8 B& f. r[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]5 n' [ M3 V8 }, f- E+ f
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
8 u% d7 }9 O2 B. @4 n' Q8 u]. J$ T5 @, h6 o; r% F \
]
1 q E6 V4 ^4 V) sset global-proportion note8 U$ v9 B* a# i6 R+ _0 U& d
], V" }3 z1 |& X7 b4 u* c
end) v/ N4 r- R. }( X4 t( x$ z
6 E8 D. w; i- \% R7 q, \
to do-trade2 F/ y% S# R7 D, X
;;这个过程实际上是给双方作出评价的过程
. N8 t' ]4 {$ S2 F# k& J7 Iset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价- f6 y1 r$ T% _4 z8 G1 S% l1 N
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# X3 C3 x3 z/ E0 F2 P+ b0 G
set trade-record-current lput(timer) trade-record-current" x# m# \1 i+ O r# ~* q/ s& b0 T8 ?
;;评价时间
1 A0 I' G# Y6 v& u; O& K) Sask myself [
' ?4 ?/ L* D5 S2 D1 gupdate-local-reputation; q% f2 O& M/ W8 F
set trade-record-current lput([local-reputation] of myself) trade-record-current1 m5 ~- w, K+ v8 D' P- c
]
. Q( _# Y) W" pset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself( D7 D8 G( w. N+ j/ U- l! @
;;将此次交易的记录加入到trade-record-one中( M5 M! f) ?, I H3 F: [ ~5 F
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
/ h5 j: s7 {4 E* g. y/ X! P( Klet note (item 2 trade-record-current ); b: _9 Y# W* r \9 C/ V6 i8 T3 j
set trade-record-current
$ Z9 m' I: `- F& v2 {$ ^(replace-item 2 trade-record-current (item 3 trade-record-current))
$ o$ f2 U6 S5 K: L+ mset trade-record-current- ^; j- `; K: }
(replace-item 3 trade-record-current note)
% M M5 I* ` ~0 g0 x; `! h- P! Q, i+ ^% B1 P. D* l& @$ |
. X( C6 m- K9 T' g& W1 k
ask customer [' P" X6 ^9 X6 V
update-local-reputation2 a/ G0 Y* F& i6 ?1 O- ?
set trade-record-current
4 X! d8 c4 X$ ^+ B @(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ; K K) r$ b! U" L
]
2 b1 F. s- N1 M% P
( Y0 j1 q l9 U. I6 ~' p0 F' C0 c& b, ~( |' ~9 E. m
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer/ m+ p5 r0 V5 q( d8 Y
4 L, x' D; K- V8 l: Vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
3 o' E1 q) W2 I$ ^9 o# M;;将此次交易的记录加入到customer的trade-record-all中
/ l) j/ W2 F7 ?! }4 Oend5 [. Y2 V3 q! U- h& M5 c
, D! c* w: Y7 Hto update-local-reputation
* F q {; a' Q# g/ G" cset [trade-record-one-len] of myself length [trade-record-one] of myself5 ?8 o" @+ ~0 R' w# A" h
! }3 f, u3 V' s3 X6 p9 U* g) p8 |8 ?, h( [
;;if [trade-record-one-len] of myself > 3
, I+ I) } F0 w6 bupdate-neighbor-total0 R$ \+ c: ^; K8 C
;;更新邻居节点的数目,在此进行
) E5 L: i/ p! [& U1 q* G; Y# X8 J: y+ @let i 3
( E+ \5 L$ r) p8 {" H: w4 P$ hlet sum-time 02 g' ~) |" O4 y; A) ^& h$ K \
while[i < [trade-record-one-len] of myself]1 w7 N0 _5 R: J) S, e
[
3 j4 c4 S% G( c5 w4 N( {+ tset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )) S2 M' b, S" `4 M S* n
set i, R: l5 O$ I% g `- y
( i + 1): V- N6 _4 t0 G7 S4 h
]
! o% {5 r h' c" B9 P5 Glet j 3
, \2 |) [# }, w& p5 Y" Alet sum-money 0
0 X" Q( m8 n/ g. V1 w! wwhile[j < [trade-record-one-len] of myself]
! E6 V$ ~# |8 t/ V) i, Z& [[, ? f- I' y' P* b- }+ T& r
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)
1 `3 F0 | y) z% dset j. J: T: m F8 B* Y4 Q7 I) X/ I
( j + 1)
- z, L+ D, z9 y9 \3 ?, m% x* r% E]
% T+ |% B4 L8 |+ y1 q; nlet k 3% P l3 |6 Q$ n; J K
let power 0
* W' p6 w- Z: I2 H" p# C, d( blet local 0+ N" y u( S' A T2 z! w. f
while [k <[trade-record-one-len] of myself]2 C/ m2 q3 N1 I/ l* T; l7 N( f' T
[
2 X- z# S- s, x5 o% Sset 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% l: m& `0 k; e+ J
set k (k + 1)1 {, m X5 z- w1 F
]0 e4 _2 X! ~" @- E/ u
set [local-reputation] of myself (local)
7 {# s: y/ `2 K1 d2 X* G* x, Rend
* x8 D, d* O# h6 }9 u9 k/ D; A0 f
1 g9 w0 _: Y8 @2 I; Q! X7 }3 ^# Yto update-neighbor-total
6 p S# i9 F7 {/ T; ^) g- Z) t
( p" Z- ^ X- U% `! xif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
2 ~% `5 r2 G, m7 _" R- ^! p$ J, {. C. T4 I( G, N! u( ~+ U2 [* I
1 `7 y$ X; P; [- d* yend9 {& Y* ]; t' M7 `1 q
]3 z/ \" O# N* P9 p: u
to update-credibility-ijl $ P% t: d g" S1 L
4 G6 I3 Z$ O6 _- z8 V$ }* k/ Y# 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。
) F& l0 E6 ~6 t: T3 Z9 ]: Olet l 0
) p6 ], C Z; K" Y' K! G' d7 I( T! Hwhile[ l < people ]
& b" e0 a) y6 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 R1 A4 g. d- e+ X0 }
[
9 v+ ]& d# M: m3 }let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
' D- j2 a6 C2 r! D5 _; L( Tif (trade-record-one-j-l-len > 3)
. ?2 T% O @+ y& ?* a+ F5 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
! n+ y |$ m, N& _* o: flet i 30 [) F. a. Q# k7 g
let sum-time 0' ?6 L) Q) {' `- q
while[i < trade-record-one-len]% S ]- ~5 @& T$ y
[( P1 ~, \. @- X4 }, u' i1 }
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )# C! f" h) T. v! `; Z2 |- O3 K
set i3 N4 B9 d# h1 n0 e, `$ l4 C
( i + 1). B% f, s7 |2 G/ F. o# ~7 I Y- n
]
. p: \% \* ]5 b' L% ]' n" g6 Q. W: slet credibility-i-j-l 0' p6 [ e1 e- f) L9 a3 j
;;i评价(j对jl的评价) d0 I4 I: s/ t _& l/ O
let j 3
6 L$ x0 N! l) M3 x: ^ ~" W! d9 wlet k 48 {$ x9 p% S) U' ~
while[j < trade-record-one-len]+ f4 K! [( e- }; j5 ^
[# R) N* L9 ?! p% 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) s' a! F/ i" h5 | |8 \/ l
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)
0 [. o& u. e' I9 p: g( uset j0 C3 w/ `- U) G
( j + 1)
* @: J ^" [8 Z+ _ f% d+ z! i]
9 V1 f, K" i; V Qset [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 ))
( _5 p' l2 K0 R0 z- l0 q$ E# z1 W2 j4 I% ^ Y
! K* G" h" G( Flet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
6 o, B) m5 o n' |8 x;;及时更新i对l的评价质量的评价- }6 C+ D3 ~! @+ d. ] T
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]3 S) D3 N3 L" c4 B9 O, q% _0 j& I' `8 r
set l (l + 1)
/ t' j5 ]& C! D1 J]. t: K4 z3 a5 ~' F7 z+ F3 M
end3 ?- W* j( Z% A2 E7 j# [& @5 v8 x( u
* q2 U3 e6 Z/ R0 P* rto update-credibility-list
9 y, d" ^8 \: E8 N4 L, [! Olet i 0
& r4 g, X( x( {! J/ ?" A3 [& zwhile[i < people]
; N- z5 n5 N. y% u: i& H[
1 I/ `9 Q ?" q1 alet j 08 W( i0 v! ?1 B# j* X- p
let note 0; O: @9 g0 q4 F1 O: L" h L$ b# B% m
let k 0
3 \: u' l9 `1 H3 \% \, V1 e# O;;计作出过评价的邻居节点的数目
8 r4 ?! P1 V7 q$ K: [/ |while[j < people]! e7 z. u( C0 u3 B' b
[
0 T) Z8 x5 h* z5 R5 Tif (item j( [credibility] of turtle (i + 1)) != -1)$ d) l9 r' h3 @
;;判断是否给本turtle的评价质量做出过评价的节点
# V6 R1 h, h5 F9 d[set note (note + item j ([credibility]of turtle (i + 1)))" h d" v; \! h. x* O k; f0 A+ D
;;*(exp (-(people - 2)))/(people - 2))]
% @" I# [/ e* `1 Uset k (k + 1)
5 g) Y3 l, f4 ?& []3 z" Y" b! p8 F- V4 c1 ^
set j (j + 1); N Z! D+ F- Z( k: g5 \
]
2 K5 E) l" r9 r sset note (note *(exp (- (1 / k)))/ k)) ?. ^: T7 B4 R G5 i
set credibility-list (replace-item i credibility-list note). m1 @) X4 R9 U' t2 R, n
set i (i + 1)' U' Z" [. U0 g9 ~2 [
]
$ v5 k# w3 ~4 \# p% B$ ~8 Nend) w. h9 C) m. O9 A) h# c
2 |- G$ t l- X: n! q4 Z& M
to update-global-reputation-list$ }# L4 p8 i/ q) _7 s& x5 g
let j 01 J" v# q0 Z# H- T) n' N+ ]
while[j < people]
& U, t' |- |+ q) ]- J[3 _# N& J, g& D
let new 0# f$ H! S7 ? q/ j8 S
;;暂存新的一个全局声誉
, g% z, u/ S7 J) H( flet i 0) N4 P0 }& _/ a
let sum-money 0, Y/ g* @# [9 W! {$ D4 p1 E: j3 _
let credibility-money 0
; v4 ]8 v: g. O" R5 Nwhile [i < people]3 y: T% u6 Y5 t" |# R" s0 u5 j
[
/ k4 W0 q0 c" t1 }9 f+ s* ^2 z/ h0 t3 |* sset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))2 y4 W0 }" i" w. g4 I7 Z8 `
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)) s+ t6 ^+ B4 C i+ u0 ^9 y" E& c
set i (i + 1)! y" @' `: [! l, a y& y$ S
]: y0 p) a' s* r/ B" v7 J
let k 0
6 j: ]8 Z4 L2 ~' _! X$ |/ F/ hlet new1 0
/ S9 d- e0 p/ I" F+ Fwhile [k < people]' [( P8 C0 _1 O6 ]
[
, f9 M) }4 Z! S8 w4 Sset 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)
B5 l) W/ I8 P0 Xset k (k + 1)- V1 k, t$ x0 c/ K% H! G. T1 x
]
. g, p M K6 g; uset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
8 X* J+ D. ?6 r: @" }/ y0 Lset global-reputation-list (replace-item j global-reputation-list new)' s E3 J$ u( h9 x+ T" Y
set j (j + 1)0 r% W- l' p, c0 R" f- H* I
] B, z2 G; i0 p3 j+ L8 d+ w! O- b
end$ t# K" y2 z8 H! ^6 n3 A% {, p
8 k! `) G1 o, s/ N8 [5 F
6 W$ G$ B9 h8 i* B M0 g
* Q( L, T9 Y6 r2 G0 yto get-color$ ^0 A* E+ ~6 l0 M. f
7 y- ^( o3 G6 S# M& ~) V' [; n2 J
set color blue
. B9 e" M, S7 I. M% ]4 \$ oend
& F* ?- h( A$ z3 P5 _; c
- h2 t6 n- Y! s) ^to poll-class, |+ t# \( x" R$ g
end
8 Q) B; O2 T7 E# s+ o
+ W& K c7 x+ p r5 a3 B5 ^* j' R0 [to setup-plot16 H# U; j+ K$ `+ y
a/ G. P1 C6 U5 nset-current-plot "Trends-of-Local-reputation". i) { } E& t" v( r
* u% Z" P k# b5 F9 Z( Xset-plot-x-range 0 xmax
# M. U5 g* x: I4 L3 M4 Y4 S* v) T7 A+ c$ R
set-plot-y-range 0.0 ymax
, i! \6 M; m9 k$ |2 |* d- x/ t% D. f9 ^end5 u/ [1 O7 w5 o
* K: W5 G d: r$ B" ^) {to setup-plot24 n9 Y" }5 \- z$ V: E J& \7 P$ m
. I% A4 \& L, O) s8 N
set-current-plot "Trends-of-global-reputation"
( H; B# F& X( F( l9 o) x9 |9 d# d1 z8 ~- L# A
set-plot-x-range 0 xmax9 \2 I& z+ {2 w2 c; ^' G1 k% ~( C
! b/ W. O- j4 _) C
set-plot-y-range 0.0 ymax9 W# H* q1 g; ]% a
end" u2 @% C3 w1 | p
, a" \) o2 H( ]; D; i6 J3 ]to setup-plot3" w, l& ^( L* e1 A/ d! |' ?! M# k
- m/ W% } ?) [: x. S# J: P ^
set-current-plot "Trends-of-credibility"
' L' @; p% C# f$ v: y
! h2 Q$ D4 |5 fset-plot-x-range 0 xmax+ y: Z* y2 [, d2 N6 Z# i- I
- ?' r* @% V+ W6 b0 s: s. I6 q
set-plot-y-range 0.0 ymax3 B# H4 \/ e" Q8 ?2 ~! d: c
end
! ~0 w* U, L4 x. F4 e' A1 S2 c3 N; R1 |2 t
to do-plots- x: c) d* _3 } F. b6 D/ f
set-current-plot "Trends-of-Local-reputation"
g7 Y0 x9 }3 L% _2 y: \7 tset-current-plot-pen "Honest service"2 w! H2 Z8 J( {
end. i' }4 X% l/ i2 X' ] t% w
1 {8 V! F$ d% B7 p[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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