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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) }/ i8 a A& r& Z1 |1 |4 A1 g
globals[
% N; T) T& l) X3 Y3 x1 K. k7 S; lxmax/ w: h3 s2 W k/ O! O
ymax+ y' t9 p$ L {, C
global-reputation-list$ m* d0 ]3 v( L+ E: C
& S* Z2 p; B" h# ^- w;;每一个turtle的全局声誉都存在此LIST中
* V9 q C) B/ y5 D" h9 m! z; mcredibility-list6 i% J& l) H4 M" V7 ^
;;每一个turtle的评价可信度0 D, K# p3 F2 m7 l0 v M) D$ M
honest-service
+ m3 A: E1 g9 C yunhonest-service! F: W& k8 m0 m/ C
oscillation. z) @+ |3 p, E: I+ ^' m
rand-dynamic; @0 F9 O) B1 y
]( E }) I+ c9 b+ ]
( H7 _' d* G2 b4 W8 V1 pturtles-own[! A8 J3 j( f1 t( Y- ~4 B. J
trade-record-all* P+ W3 l2 c/ @4 \( `: l( s; `) Y
;;a list of lists,由trade-record-one组成7 A! N/ Q3 |6 X! i6 E7 T
trade-record-one0 a d) {6 A8 y% g; x
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
) K7 ?* u, d1 d* Y
' N( S& ?0 o: H/ j/ M$ ~& h;;[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]]* \! J2 E Q9 {0 g( i: t
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] @/ b5 N, h) _( M6 `
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
0 \2 b+ V0 O1 U3 d! g nneighbor-total4 m0 r5 A) L1 z. H3 J1 d
;;记录该turtle的邻居节点的数目0 o7 p: E# [4 u7 \1 a+ G
trade-time
& Q1 H; k _' d7 b) n;;当前发生交易的turtle的交易时间& O2 o$ m+ t) _) g+ x( V. S" L
appraise-give# ]/ C6 k; V D8 J) T4 `, n
;;当前发生交易时给出的评价* U1 b4 G5 E+ c, f: b; I5 r" B: V8 B
appraise-receive& H% a* u% g+ F8 g' [ }3 y
;;当前发生交易时收到的评价
9 I( l: N# I/ P/ }appraise-time
3 D' z! k( t2 D" t' u0 p* U1 f;;当前发生交易时的评价时间
! a6 S, z8 Z6 R" rlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉 l; Q9 }! S6 M5 X# g A$ v
trade-times-total* f5 T& ?# E7 N1 v5 c7 N; p
;;与当前turtle的交易总次数
h1 z8 O, m6 K" rtrade-money-total
+ I0 R3 P) F* \0 N" Z;;与当前turtle的交易总金额
% _4 {: ?+ u9 p! P. ?local-reputation
, u4 Y7 l) K' J3 q& L) a& T9 P; Rglobal-reputation% {* B* v$ ^. q! C* I! E
credibility
/ a6 `4 m5 K+ {. {6 l6 j0 j) w;;评价可信度,每次交易后都需要更新
1 s; I( h, r# |5 _% x' X- O* Vcredibility-all- x7 a; D1 ]3 y2 m3 J
;;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0 N* u% _4 [6 l4 b! E) I
# a ^, \% a, X;;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% y* A/ ?9 \4 E* |' D W# D; Y
credibility-one
! m, }6 T/ ? i+ x; C0 j5 k8 p; o/ x7 K9 q;;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" w2 r- A: I: {" E
global-proportion' [, j# g/ G' A+ O0 B7 t5 v1 F( @( ~
customer
a1 y% V' U4 C1 X p# Rcustomer-no
! ]+ n9 y% g# ^: y b) Btrust-ok
/ S, m% `# g+ N* j/ Q' Xtrade-record-one-len;;trade-record-one的长度
: @/ K: {! ?1 T/ U/ ?3 o]
9 |( E6 Y/ ?& h; Z- Z w. x$ L+ h3 U, L$ x! l% X
;;setup procedure k: q I- s$ }5 \4 @! k0 M9 h
3 }3 G1 e; W5 {8 Eto setup$ U! K( d6 k2 }6 @, _' L5 y5 o+ z) Z
( B: ]* s2 C" y5 `9 T* pca1 Q& X% s9 V/ z4 ^
/ Z$ m9 a7 S/ d8 o2 B; X
initialize-settings
* x$ U9 P$ ^# }* u5 \( [% l( O$ ~* ]0 |+ y) x6 i
crt people [setup-turtles]
' i( y# G2 a+ a4 p d
# D4 H$ j8 M. z0 M% kreset-timer5 p8 D3 a* P: P" K E; E
8 B9 [+ E* ]* W; ppoll-class
8 O3 m9 c' F9 q0 P; m2 L8 ?, e" U" b$ B
setup-plots! j& a/ d' \' N5 T0 E
5 |. {/ l/ B# C& l bdo-plots1 D$ b$ V/ t5 ] O/ [
end
: W& X5 ?; n2 f$ G' [+ F. Q* G& Q& x# v' J) c2 j7 z0 b0 y
to initialize-settings( N8 H: Q$ I, c b
I) y1 [) v) G; G9 gset global-reputation-list []$ T5 ~! N7 n6 g* s! t
+ @: M2 i5 N* X2 f% j' e
set credibility-list n-values people [0.5]
- J! V* ~: v2 X! m* x8 O
! W' J# n; l$ t4 n6 aset honest-service 0
* I8 C% j$ |5 b+ E- ]( t1 Z0 j8 p& C9 B, A
set unhonest-service 0
# O% w' \7 P0 g' u/ m* K
! m: y5 o" D( f; J( \9 B; X* {set oscillation 0$ S& o% e& G0 u2 c; Q
+ g) Q7 Z! I+ n- q! h1 }8 d
set rand-dynamic 0
4 A6 L, e+ B( Gend
y* S/ O1 y% P, t3 H
9 V( T* k% ^9 x$ x2 B J) Cto setup-turtles
& K) E7 I, `$ E# S, _set shape "person"
1 V4 u0 q" w" ^, ~! Q6 Y1 asetxy random-xcor random-ycor
% u& W$ C) B' f7 s0 _, _set trade-record-one []( @5 Y* A( D3 U- K1 O5 @
5 Z. D: p4 Y# C( [9 r3 H% l* f N5 x
set trade-record-all n-values people [(list (? + 1) 0 0)] 5 I1 ~3 Z9 l5 ^1 Y) B
) U2 D y# |, ^set trade-record-current []& `+ Z9 J6 A* h$ w. u& o' h
set credibility-receive [], s$ s) F. E9 w2 c, j8 G
set local-reputation 0.5
) B; U% @% x% F$ u9 r: Hset neighbor-total 0* | {2 L2 n# Q1 ?8 E, x% f" {
set trade-times-total 0
6 N2 X( g9 y9 ?( Kset trade-money-total 0
2 t/ J8 i6 i0 e8 E0 i2 k$ G& eset customer nobody( z8 z& A& Q- u0 E
set credibility-all n-values people [creat-credibility]
; y* Z$ F# F) R! f5 n( p/ f3 u/ @set credibility n-values people [-1]; b* [$ ?& z( J( ~' i
get-color. |: X- E4 E8 p% s l
, E5 E/ a# C5 [9 x" C: B" ?, f
end
0 T, z2 m4 D& P1 S: k B: {+ Q- J: y
: A6 m, p/ M# Mto-report creat-credibility) C- B; K$ }3 T. K! n
report n-values people [0.5]" t5 A3 @1 |' G8 P0 W& C
end3 w* I- N5 o( ^0 L% D' H
$ s- n9 k9 n6 G3 V/ Nto setup-plots
# k; F% q& ]1 _ w
3 c# v) f+ F: ?: n, o$ d0 Gset xmax 302 Y P. H. S, G9 r% k% j0 L
+ h0 F) E$ u- W/ e) e9 U R" z$ ~
set ymax 1.02 \5 |) M$ S/ p* Z
- p" p" e% u# }
clear-all-plots( j$ K# |: G6 Y; d* n5 ?
) L3 N, M8 a% t- P2 }$ @, O3 B$ }setup-plot1
2 W- [2 p: J0 q, f3 J6 }% h1 n+ v& f) @+ ~
setup-plot2
5 C1 P: g0 m0 r& W
- V6 j6 K3 F9 s; \$ I6 m1 zsetup-plot3( E. e; ]- x9 O3 K
end
% ^' {3 B2 L9 _2 S( `- j
3 T( n2 H8 S1 F( k& d- Q' V5 o;;run time procedures
# S1 [ N6 z" d, }4 I+ b* O4 u9 v5 P i2 M. S$ U
to go
2 F o3 S% I4 ~& D2 j* k+ `/ ?3 q- G0 _) S# H7 X! _$ |
ask turtles [do-business]. b' _; M9 m, g4 F4 }
end
- p) p3 a& y/ `* V% f: d7 Y" I0 n3 [/ g9 X* V6 {0 B' ^0 b
to do-business
$ G6 `* O# i/ r$ [4 ?* Q* |* @7 m3 J3 _+ q* d5 c( l: Y8 @
) Q$ C5 M! a! l! V0 L$ u' Z/ o
rt random 360* ^2 S+ j- z) p& z* m, X
+ O6 p4 R8 M# d' O0 [fd 1
9 Q3 h& [: H3 E' e2 u& i0 ?( z
" k0 \' ?9 E! K+ L Nifelse(other turtles-here != nobody)[
7 r/ U2 I4 ^4 W- h( S1 K' l! G/ K9 `8 ~7 {' r( y
set customer one-of other turtles-here2 N6 w% i3 M1 |
% W) u8 }5 Q# ]% H& ]; };; set [customer] of customer myself R R. J* J- f
S* {) M. e8 I( c4 Y" m/ g0 s8 iset [trade-record-one] of self item (([who] of customer) - 1): G# h% l1 F$ r+ G; `8 J) P$ L
[trade-record-all]of self k- M" R. x. Q& F( P# J" Q* S0 g
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self. ?; V7 A9 I& w6 J& Y3 k
" X& ~7 k. h/ H D
set [trade-record-one] of customer item (([who] of self) - 1)
3 ^1 f2 m) t+ @7 k[trade-record-all]of customer
- }* a) |8 s0 F( }
3 g7 J7 Z# h. {5 i' S. }5 Hset [trade-record-one-len] of self length [trade-record-one] of self
$ p+ l& v* I; d& b5 g# @
- ?$ a9 Z0 d: \2 A4 Bset trade-record-current( list (timer) (random money-upper-limit))5 P) @/ G; @* ^& r7 K% p
, l: J) X3 O0 c# s6 f7 a
ask self [do-trust]! i4 x8 a& k3 ~6 _( f5 G, _+ X2 a
;;先求i对j的信任度
7 h2 g% D! H3 k# I8 r" Q8 X6 O1 J' ~$ b7 ~$ e# P) [( G
if ([trust-ok] of self)
- g. N& q* I. m* A- [;;根据i对j的信任度来决定是否与j进行交易[( `( Y2 R4 m) G
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself3 y3 x+ I% [5 o# Z& H
$ q: V, W y0 ^! ^
[3 h$ h; ?3 S/ ?# N0 e3 x
; }1 A: I a; D- X6 \' [7 ?
do-trade
3 w! z P& r0 a9 H$ t* O5 o' I3 Q0 l! l! ?" d, s7 q- r
update-credibility-ijl! v0 U% q) b) r. D% D6 m
+ m0 R- [, N& t2 C0 }0 n/ Bupdate-credibility-list6 v& `2 _6 j+ d, u# T' S3 }# z" ]- b
) ]* G8 E0 |+ q! t0 h2 e- W
+ k4 F# a* F6 r4 vupdate-global-reputation-list
( J7 b- X1 w7 w! z
! H: v" P: i: C4 k* u6 Vpoll-class
0 ?2 @! v+ r( |( E# v o& M) d: J% L) K) r0 C0 c/ d9 H3 ]
get-color' I q; n$ h2 E
9 @# l! B$ P' w]]
* e3 \1 P# i. d
0 f- j! F0 f* s;;如果所得的信任度满足条件,则进行交易3 S' {: B# k+ o
+ V9 y0 ?0 }6 c- s' a8 Z5 S& B[1 g9 q* ^! B# q: W" ]* M4 R
1 c4 w5 s! e: Grt random 360
$ w" L0 d( X: Z) y! B
: d: A$ P6 X4 c; F: _- gfd 1/ D1 I B3 `9 |0 X
: g! \3 a! D) K: ~. D1 s
]# Z" ~" V, L+ G4 f1 A$ r
7 G/ x/ H6 o' H, X0 |) Z- K8 Tend
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to do-trust 7 u; `7 }- n [5 o1 J" T; Z) g
set trust-ok False! A8 u. p- D/ [' [
3 k4 p: S5 I" a: l* j7 Q
7 s/ B$ a. z5 x7 r, G# I
let max-trade-times 0
; z0 L* z8 K5 m- N T8 Vforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
% K, }' ]& C! m% C$ ^4 Mlet max-trade-money 0* M$ U* i- ?+ q5 {9 t$ q8 x; b
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]- _8 V( w5 Q+ U# i7 `) I% _. W
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))" W1 a9 c w) R; ~
. V* V% p: v- k( F2 s, m4 I2 d( Y
1 H+ r6 f# q2 y% [: Y2 s
get-global-proportion
1 F5 t) R7 p8 I, \4 J' D: Slet trust-value* \8 J; v. c+ h! U: ] o( k$ V0 Z- [
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)
0 |+ Y7 R4 J- x# S( B- u: ~7 f7 mif(trust-value > trade-trust-value)
6 O# D6 D) a8 U' C' f1 r4 T4 s! g[set trust-ok true]* H' L: Y& [4 i( f
end6 t6 x4 o) A1 i; Y( i* D7 K
% S% f: |3 Y3 H8 I4 M& w; L: ^
to get-global-proportion
x* {& h& O7 x( Y) w$ t' kifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)8 h0 T; e5 l7 c0 Z4 A+ D
[set global-proportion 0]
2 H4 j, N0 m& e/ I5 \6 g% e, l M" _( \: S[let i 0
% y, v: L+ y7 n, x- Alet sum-money 0
% `0 V5 c( e3 b; r+ N4 Pwhile[ i < people]$ H* I; e ?% c2 E! S) m
[, @( N& }1 z; k4 P- Z
if( length (item i
+ `/ F1 y. `" R# X[trade-record-all] of customer) > 3 )
5 b$ O' ?2 t: {8 I$ D0 g$ U[# L; U8 b2 L4 o$ S2 L! r' D
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
8 O$ V% ~* x$ T y2 y; u]6 Y2 U. v( J7 t
]
( @9 R3 K: G( K, Vlet j 0
: l6 z, g S2 v3 Elet note 06 E4 @" ]3 S! A
while[ j < people]
* E; j$ {% J, ~* j, \[
8 v* P) {0 h, vif( length (item i2 e G5 f" ^' z
[trade-record-all] of customer) > 3 )( B% Z3 P! G# n2 ~: ~
[: V' W7 Y9 Z* c1 Z: x8 @1 d% h
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
+ R6 r8 s2 e( I, F2 E[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
- Z8 m% B* { o# S9 p[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
1 e: _3 I; c) `* p8 J K, r$ g]
$ ]9 l# g) J+ ?4 O4 |& `]: m* |% F. N5 P* o
set global-proportion note; d9 `0 j" m7 c3 n8 Y$ P# _. A P
]
4 U( l7 ?, I) k+ q/ aend
6 y! U& W8 @1 H2 i: m b
O F! M6 }: N2 e* \to do-trade' k- P5 Y- f( L1 P6 U2 \5 B4 v- G! ^
;;这个过程实际上是给双方作出评价的过程* a8 j, d7 E7 [3 E! Q, B, R
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: w* |: L) t1 o6 k: A0 G. jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% n4 ~4 j2 T9 _3 g/ P/ Zset trade-record-current lput(timer) trade-record-current2 W* q7 S. ?- }4 u. M4 a
;;评价时间
% p5 q* _2 C7 b: T, Bask myself [
) W; q+ @& y; s& Y+ o; W0 L3 Cupdate-local-reputation& B f2 t! B. _6 R
set trade-record-current lput([local-reputation] of myself) trade-record-current4 L+ I' l3 `' n) d9 z
]" e! t R6 ~2 j0 m) G% I0 d- ~
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) t' J) G+ S X# Z
;;将此次交易的记录加入到trade-record-one中
; _8 o6 \3 r" Y( d8 ~ [$ kset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
+ E* p- T; w) u" L, g! `! \( E' Glet note (item 2 trade-record-current )
1 U, o% j# B3 M# ]- ? s* cset trade-record-current( S7 F/ p+ g; t7 R9 r: F4 P3 |$ g
(replace-item 2 trade-record-current (item 3 trade-record-current))2 Y" ~! ^9 B- x3 v. Q5 T$ C% l
set trade-record-current- s/ y8 t$ B0 |
(replace-item 3 trade-record-current note). t0 |4 K) B( \2 _: o) P
* m4 H6 h8 _0 i2 C1 B- [! I% e& u" t1 l& }; x5 p' i9 u- K
ask customer [
# w* _- B9 Z0 q! X p% bupdate-local-reputation5 R, {9 W p7 f
set trade-record-current
2 v9 C3 Y2 Y- E" T(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) / f; a7 Z4 c* K, C
]& X; _" G( Z& N1 C
* f- w& k* Y. V+ T6 o, h
" ?' ^1 Q$ {' k3 y" hset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
! [3 i* ?$ y* r- r% N
; Q3 E" w5 I2 m! S3 Oset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
2 q5 F: Z9 C" a- y$ ]" e8 h9 c4 `;;将此次交易的记录加入到customer的trade-record-all中
4 d9 b2 J' G# m/ q+ `) Fend
. @% i- p7 H6 i Q* h- M1 B
& a# w$ } J/ h5 @4 W" B/ Uto update-local-reputation
0 Z; a+ l. X( h8 sset [trade-record-one-len] of myself length [trade-record-one] of myself' B% P: A g* U% A# g
1 J! p3 C* ?% ^
2 q9 H6 q3 h: P' y
;;if [trade-record-one-len] of myself > 3
+ K+ V& _! U! p! ~% mupdate-neighbor-total
7 \1 s& P8 P, b) j9 r. ~3 W9 E/ o;;更新邻居节点的数目,在此进行6 o! P$ E9 y2 C- D( y
let i 3
; f9 p: E2 e7 p- jlet sum-time 0
5 u& b; T0 f! [5 c/ Z& b7 ?while[i < [trade-record-one-len] of myself]
2 T$ n/ u6 }) |& R+ k[
8 l2 c. s! |1 i" X+ g* {+ `set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ): g0 m3 l6 [8 |$ h- D& g
set i
9 B# _' O7 ~) i% Z( i + 1)
! \: j7 d5 p% }4 m]
+ \( P' R# F4 i& ~; blet j 3
0 O; Z, \$ b2 Qlet sum-money 0
& `3 u' _6 ^- g0 u- Jwhile[j < [trade-record-one-len] of myself]8 W y; D$ J) U4 Y7 Z" Y1 v
[
4 d* J7 c3 F/ i) s2 Gset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
+ C7 ]% ]* S% P4 a& Eset j+ g; M, s; R G7 {* A6 A- A# W
( j + 1)1 `- J5 V5 K1 o1 w* T4 O
]
# W! c) M; N2 w) y) U$ Dlet k 3
$ i6 d" Y& {4 S* H" clet power 07 \, e7 O7 Q! N6 {' h
let local 0! I' Z" e. \' W3 V
while [k <[trade-record-one-len] of myself] R6 S. L, S! U2 o1 f/ |; r
[
! r7 p% x0 `! U4 d' Y5 I8 kset 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) 3 ]: k" v' W) v$ H9 N8 n
set k (k + 1)
1 @4 O" O, \$ n& ~, d A- e]
& [' t; t0 i! b, Uset [local-reputation] of myself (local)
Y' m2 S4 ?* {2 Z. zend
- F! {# F, f8 ~* e0 D% |! \9 Q! x* }' I% ^1 }7 ]
to update-neighbor-total; u" K7 I$ l8 H! [$ p
( J+ p' D& O$ ^0 C1 a9 Nif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]- [' l# ?3 ]2 I. ^; g' o
5 z- B# b; k/ A- H& z, R8 ]. P
" Z, I% T# C" P8 u# d4 |5 kend ]& J. Z# b4 \
* W) P _% Z9 P: q* s0 oto update-credibility-ijl # c: r1 N( G2 W
2 z. B4 p! n5 v5 x. j
;;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+ T& d6 I4 ^. Y& T# q: @
let l 0
0 e% W/ I* k6 Z% ]; Fwhile[ l < people ]) }3 ~$ C2 I( t2 {( u
;;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)/ R' R5 P Y1 l0 [) ~
if (trade-record-one-j-l-len > 3)9 J" A: @; a6 J G" d- G
[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
# I4 D1 u& r; `9 |let i 3
/ X Z, e# e0 w7 K. ^8 flet sum-time 0
S Z- ^# Z* E2 P9 Kwhile[i < trade-record-one-len]. x% T+ q' h3 O" t1 t" A
[4 D+ b2 w1 D" b3 A6 b
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
. L% T+ T3 ^" C2 a3 O3 R& V5 D/ L/ ~set i* M: E5 B9 b! Y' @! `
( i + 1)
) x% b$ z# ^- O! A6 s s& q]% W# P5 q# o, |5 A
let credibility-i-j-l 0
" V& S& i4 t R8 J ^( ~, G;;i评价(j对jl的评价)) E0 |7 J3 R8 K2 Q$ l3 h
let j 39 D/ c9 i. O' ~
let k 4, F8 X: `$ M2 k2 z% h7 f! c
while[j < trade-record-one-len]$ i+ E, K7 f& i% ^6 L! y* ? X
[
2 M$ a5 Y5 O# v' @& ]1 X( w9 ]( }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1 P' {6 x! m+ S& m! 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)
! Z5 j D# ~+ N" |# o* Y5 ^set j% l+ w, J; ~" D( I. j r4 ^% \
( j + 1)
3 P7 e9 k; n2 `; j, ~1 W/ w) y]
, V" z$ p6 Q4 A( r# Q- uset [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 ))
9 ~3 t7 v' J& N5 q! S: s2 _6 B9 t3 f* r: l
9 Q2 `- T, b- {. g+ U: F% Q0 @' clet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))" v( C0 Y6 K7 J1 x5 \& ~
;;及时更新i对l的评价质量的评价
& ]" G7 [5 d! ?1 `) ^set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
* N0 r0 p; N" R1 A4 cset l (l + 1) I# z2 H3 z, W+ z: j* k
]1 a0 a1 A9 k+ \* L; f( P s
end
3 U( b- e4 q, n$ b- H2 ^! p4 }* L; G: g
to update-credibility-list
! n" l: A$ s) R! vlet i 0
$ R6 N5 O' Q6 |! }! \while[i < people]% D, }* e& w, ?$ l2 r
[
2 g: ]8 T; }' ]% e- ] R3 j, Plet j 0
/ P, _% }+ p0 d. I6 ^let note 0, a) _2 @' ~# E. g/ X( q
let k 0
7 ], W$ O" x+ _) E& z;;计作出过评价的邻居节点的数目
2 b, ~' y3 Q+ Q( v' ^8 V0 `' P: E; Owhile[j < people]( O {9 N# T8 S. Y
[
+ r9 K/ v' b \! Y3 Iif (item j( [credibility] of turtle (i + 1)) != -1)
f$ e1 }, R; I2 a;;判断是否给本turtle的评价质量做出过评价的节点
) ?5 {' X) e9 i- K3 I$ ^2 M1 C* \[set note (note + item j ([credibility]of turtle (i + 1)))
f: O L, n$ @) b+ T6 |8 d$ q;;*(exp (-(people - 2)))/(people - 2))]
2 c; x* i5 K1 j' E& `, f5 }+ xset k (k + 1)
# [. \3 d, T* o5 x. `# W1 |]
& c: D' I& G/ Q& wset j (j + 1)
0 r' j" r: [7 P9 l/ G* N! f], m" v; Z' }& T
set note (note *(exp (- (1 / k)))/ k)# d. f* R2 U- Z1 c' K3 y
set credibility-list (replace-item i credibility-list note)
8 g# p% s0 [) e9 b& N, hset i (i + 1)
+ u% }$ y& K% s/ Q]
0 m1 Y2 m9 [% b7 {* u8 _end+ O* _% U w, Y2 f1 L) W" y* Q( |
% X0 C# ]% V+ rto update-global-reputation-list# ~7 L& ]: [. d- X1 V- S
let j 0 C+ Q6 b2 A0 z
while[j < people]
! d4 M& d/ J7 Y# A; @[" ~3 ^$ b8 ?; P9 d8 g: H
let new 0
" F2 {: w3 f p; Z' d1 \;;暂存新的一个全局声誉
5 ?$ @. L& h5 ?2 alet i 0
0 i9 @7 @/ L& k5 F2 w/ O0 Y" x! Flet sum-money 0
7 N$ o4 \6 D5 ~let credibility-money 0: p F6 w F; ~$ N+ b+ {& X! K
while [i < people]2 x+ A4 Q5 G2 C
[$ C3 ~8 p' L. W5 M4 ~7 [
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
9 D5 X/ a }$ A" b" Oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
$ a5 `2 g. n3 p' Oset i (i + 1)
# e3 b2 `, j2 C2 h, s# b% _]! y% g6 B9 \- C2 r; i+ E) @
let k 03 o2 ~4 g8 g, Q, S7 F# q: _
let new1 0
& n5 r) H6 K% S1 ]$ R% Mwhile [k < people]! y+ p3 w3 q6 p; d* ^: d
[' X. g7 {7 Y) k/ o% ]+ A- b
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)5 M4 e# Y/ w+ ?9 Q+ c# }( p4 ~8 U4 G2 z
set k (k + 1)0 z8 f9 F; G8 P; U
]5 S/ m+ f& [# Q
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
}. s% s2 g( T, {& H% k. b. h5 uset global-reputation-list (replace-item j global-reputation-list new)) Z+ ~: s9 J9 ?& z7 R
set j (j + 1)
4 a) F, W* a* E8 d, @ F]- t+ O3 l7 n0 }9 Q7 J
end( R* c4 \& ~* d0 N% R/ c+ ?
6 q2 v9 s4 j2 f% y+ _& j
% V2 _) u2 @9 l; o& ~- Y
% l; I4 C0 x9 D5 X! O; jto get-color
2 @/ c* {& g* X1 ^6 o0 i f* ? Z+ t: }6 D0 x) T
set color blue
9 Q. C! W$ g$ `8 F {end/ P* @( V, l) {# H" h
4 P1 E5 r* D+ r% r
to poll-class
1 P5 }. Q! V; L% B, D( D) Fend9 u2 E8 B& b& W: R
7 i, z7 R5 s# u) }+ n& H9 R! Z# |
to setup-plot1
/ V7 ?' b3 l5 N! u: x+ Z$ d6 t* M8 b/ A) n" B
set-current-plot "Trends-of-Local-reputation"' z: O( V& W2 }' H4 r& @
) P7 {- x3 G. y4 e
set-plot-x-range 0 xmax
7 o/ l+ y* b0 V0 J4 }: r1 G3 n, s8 P# D9 W
set-plot-y-range 0.0 ymax
: |! G; v0 K2 O2 Mend
: J' ]% S" J* X( a1 ], b8 r- @# _# N* ^9 T Q+ |, r$ V
to setup-plot27 D# U1 c0 v: H6 y% J/ _
5 H: q1 a3 O0 p% K1 Tset-current-plot "Trends-of-global-reputation"2 X H R. A, A( z' y& _8 r) [
0 m2 M" t$ W J( P
set-plot-x-range 0 xmax* U- z1 c( J( u; s; F7 K9 B
; Z1 h; h1 Y' w+ b9 S+ b, _
set-plot-y-range 0.0 ymax
4 d( M8 c4 _. B4 uend7 f, z) F2 V1 S5 g/ I9 A
9 t- A& f4 M: r+ |( B/ X+ j$ @to setup-plot3
2 l$ l2 L& f, z# V1 \* B5 u8 z7 u2 `4 g2 a
set-current-plot "Trends-of-credibility"
$ { B8 k' w/ V- d6 J) D8 N# A, c- P3 O6 h& f
set-plot-x-range 0 xmax: g( f/ x+ U: @; l8 _
+ C0 ^& n4 n1 ?set-plot-y-range 0.0 ymax; m3 r4 N7 N5 |% { l
end, X: C, `: e1 t
4 a$ \; y9 R% i8 e
to do-plots
7 r+ W( A& f' ?5 [set-current-plot "Trends-of-Local-reputation"
- j2 J6 E! @6 r. i' z6 h/ hset-current-plot-pen "Honest service"( Q7 g, a4 O: O6 m/ f' i; R& d
end
6 o2 Z* U' O3 |( `3 Z8 P
: G& z# j; c* g% N+ O[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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