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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
C. X4 n8 I$ Pglobals[% F% a- X3 _: Q* p- _
xmax
7 @6 f+ Z) y% \) T* Z% Eymax
- c7 B8 Q0 Q# T& S; l" l+ y* _global-reputation-list
, c" Q5 [% @% {4 ?- d
: A: f* f& D: {3 _;;每一个turtle的全局声誉都存在此LIST中
' }$ Q3 e4 O5 [2 x4 q9 P' xcredibility-list9 u; R, l8 w- {4 x: u
;;每一个turtle的评价可信度, k& J# ~1 @5 V5 n
honest-service8 N7 v7 h7 I8 T3 ^. F& @
unhonest-service
3 }6 y* [, @$ @" e; ], i0 Voscillation
' {+ t s6 S- j% x' F$ V1 yrand-dynamic
4 {( b& x: Z! C5 n* V2 T]5 m0 w( E- d3 O2 o& J8 s9 @
& F5 Q1 b4 S: ]
turtles-own[
# ^3 U# R. v: }7 I+ [0 Ytrade-record-all
: Q5 c* Q/ e! ~2 [;;a list of lists,由trade-record-one组成
6 V5 k4 W4 p. B; ?6 W% f# Ntrade-record-one( r2 Y- A0 q' t5 o: g0 L/ b, H) r
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
7 `& U% @& R7 p, u5 h4 V/ Z0 E' q; g) ]) i" A; \& c; r
;;[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]]
' x4 M! }9 U, F- \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]9 k3 m- B( J7 S; a/ I" F1 l- d6 y
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list7 }; Z1 e2 S! [0 _7 `& ] M
neighbor-total/ K- v$ {3 l$ F! C" Y. y
;;记录该turtle的邻居节点的数目
1 ?0 c' c/ K/ w: H Ntrade-time
' Y9 q, ~# V% |2 k: i, \: N9 T;;当前发生交易的turtle的交易时间
6 R& p" H. V y# \# }appraise-give
+ H0 k, Z) r' d. k# v# [;;当前发生交易时给出的评价+ S, H- j. |$ Z. H
appraise-receive
' s2 W% a5 A. H, p6 ^5 ^# P2 C;;当前发生交易时收到的评价5 k" {7 M& s; E! M0 p: f5 ? g, z
appraise-time1 ]9 k( c2 ~) f; v
;;当前发生交易时的评价时间
8 A! n* v4 e6 S( w9 A( ~7 M5 ilocal-reputation-now;;此次交易后相对于对方turtle的局部声誉3 m) j6 t5 T) u1 P
trade-times-total
7 i5 U, B+ r" H$ u, t! D;;与当前turtle的交易总次数5 z) ~: N7 E# p( _$ x# L1 ~+ x
trade-money-total; k: C) W7 u7 u
;;与当前turtle的交易总金额
+ M5 [6 N% {+ y/ w" C6 ^local-reputation# c. y1 f' t+ O
global-reputation
7 g' G/ {/ W0 b2 _. o( O9 B5 {* [credibility
5 X3 b7 \. s- Y4 Z( p' s;;评价可信度,每次交易后都需要更新/ y; T8 | O K. u7 t# J3 y& H
credibility-all+ b& a P1 c9 T/ W: b! Q
;;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
, {# n5 x3 E f4 `, |
+ G% M+ s! ^$ _5 X2 ?;;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
5 c4 R8 ?% n3 c& y j( V% tcredibility-one2 N& |$ A7 l4 a
;;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 W& V+ m* J0 a% @& _+ ^4 A8 d) oglobal-proportion
/ E; j0 Q3 G8 y1 _9 u/ lcustomer" z s" a5 I, o
customer-no
- C( K( J3 J8 {; |1 j$ K6 htrust-ok
" ]9 w' A; K! A8 ?# utrade-record-one-len;;trade-record-one的长度
\- b+ U7 C# K6 a; N]
2 w1 C g( a4 r1 n4 D8 n/ S
2 h, a3 W5 q* B/ g! l;;setup procedure
- \* o7 n% i, e
+ T( j2 m4 t- q% b) M4 W [. l1 c) Qto setup/ T4 B) v& k( p# B" b1 |' _6 o
4 P4 q% ?) D* g G- ^ca3 Y8 n& O* t! N0 Z' n
) n# P5 p6 z \" b4 Rinitialize-settings
, w, A, @' m, @
3 P* `; i: l$ c* d$ E! U$ Vcrt people [setup-turtles]
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reset-timer6 U+ y8 J% r+ s6 z
3 U) G3 ?) Z/ o; hpoll-class" `! q% L2 |7 R' G4 [6 g, u
" n g" V' D# ?1 Rsetup-plots9 C. g! m) B9 p7 N
. g5 R) S7 N5 J! ?& e# Kdo-plots
$ l& P Y6 m# r ^0 Jend3 s8 x0 c4 t4 }; m/ H
' @! L4 r: n( s9 m8 eto initialize-settings) ~- ^+ [! g% f: }4 N9 n- F! G
; ^) S. J6 c, A! T i/ Jset global-reputation-list []
/ h. v; l3 o$ ^% c9 U! A
! E$ |4 ?; K5 @+ n- N0 Sset credibility-list n-values people [0.5]
7 {- ^; q) Y/ S- x2 U U$ R/ K# v
set honest-service 0) l; A: b1 [5 F& C3 U z1 A5 B9 u- e
- y# h: K' R. i0 N: c% l0 ]
set unhonest-service 0
7 H( m9 P& _9 \) U1 X# w% x( i0 t1 r) F w
set oscillation 0( c6 g, Y1 K" r1 i$ r$ [% I! ~2 ?
4 u4 u! g: D7 e2 G% X; [set rand-dynamic 0/ f& T: ]8 ?/ S% @0 m
end- R% Q! Z/ M! A5 z) R5 a$ I8 t0 M
, j& _1 U$ U; P# J/ @. rto setup-turtles , C8 E! ?# r3 [3 _& ^2 d
set shape "person": {/ H) x" W: i: C$ P) a$ G! Q
setxy random-xcor random-ycor
y8 L' L2 E- Y. h- Bset trade-record-one []9 B# c% g9 J, b- q3 `! V
y3 E4 d5 J# g/ X% sset trade-record-all n-values people [(list (? + 1) 0 0)] 7 F# ]" I) B7 R; W; }5 B% X
8 k' x/ n7 Q' Y" W/ o9 Uset trade-record-current []
) @ T5 W; r$ t% H9 } Oset credibility-receive []
) N- F' W( ^4 [' Wset local-reputation 0.5" J( k# U$ N) U& R
set neighbor-total 08 O. X7 n' ?( V8 p! w
set trade-times-total 07 s( Y8 ]. d3 J. d3 o
set trade-money-total 0
! R s* V" o, I# hset customer nobody; ^" B B/ I; g' A: ^
set credibility-all n-values people [creat-credibility]
( {2 A. w; G) _( A# Xset credibility n-values people [-1]+ r6 D9 e0 J) ?9 c4 s7 Z. j
get-color
# @ p9 N# F8 E$ j0 o0 j* q; w( t. i. K, l" {; D
end
# y- f) i0 s' o3 ]3 W$ P9 j
; f9 i1 O0 W8 u( q Gto-report creat-credibility
, H& d$ V2 k) n- ~! Vreport n-values people [0.5]: j7 n" e5 r: B
end
5 A) ^9 t) l4 I9 d% \+ O0 \( r& V( @
to setup-plots
! L2 w# V$ J- \: e/ [- U* T9 p; B* b! I) E
set xmax 30- d ^* o% _) Z8 r# {1 I
$ V. X9 E3 s$ Q' ?set ymax 1.07 i8 v& G' ?) r8 l
; x/ a: |* ?" v3 gclear-all-plots
2 N! T1 y- R$ k" \2 ]; z# l+ X' r
setup-plot1
2 C7 a' d$ t: J) ]& ^2 q6 [, R9 P( ]$ L( A0 U5 @$ n9 @
setup-plot2. J" X- W$ d, F0 C5 y9 W4 f
* F0 `; S% l" E6 dsetup-plot3
' a( f2 x* r& b# o/ D! J& D+ k3 Pend
4 G( D0 C. e: R; I# l! @/ b# Y1 R7 Z$ A$ O
;;run time procedures7 Z3 Q2 i. a# o7 t! D" Y# Y* R
2 d+ W8 j3 }$ Y& ^6 _. v& l
to go. N5 I$ e! L' t: r9 |( x- Y
& R3 `* E, ]; ]/ F4 Wask turtles [do-business]
. ?% q' H( g0 ~( x4 K- ?+ F# }end, F" @1 Y, t w5 j: k5 q9 v
) s: Y3 J6 T" J6 s& p0 U# u( t
to do-business
+ }" t' r0 C; L# v# R8 G; C6 g9 g7 S, T
: r E6 F9 t) m. C7 Z
rt random 3603 {$ ~1 i2 }! g f
! ]& G, d# G% I% L' f s" ^
fd 1% C% d" G& c5 v
! e% a5 i1 H" N+ N# t5 o+ ]4 c/ ~ifelse(other turtles-here != nobody)[
# A9 a/ U% c2 `
- O' G! Z) r, Y: @9 e9 v( p2 V' jset customer one-of other turtles-here
: n" m( G; e, d, j" U' U- c; s
& P( ^" `9 i* _6 a;; set [customer] of customer myself5 ?1 O7 o% ^1 Z* j$ ?
5 a7 a m. w$ y* Y5 F Kset [trade-record-one] of self item (([who] of customer) - 1)2 S1 Y6 g$ }6 r/ U7 Q5 @: h% X, n }" Q/ x
[trade-record-all]of self
3 u. {/ J% }2 x( p3 b;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
- l4 g6 B' R9 Y( D7 U2 o9 E" E2 K7 B% M y+ M
set [trade-record-one] of customer item (([who] of self) - 1)9 Y1 W; @; G2 j. |5 F8 ^) s3 d' O
[trade-record-all]of customer3 e3 V1 ~5 V1 ?# f d
. ~4 i# J. g( K) C+ s" |8 t, K) P1 e
set [trade-record-one-len] of self length [trade-record-one] of self
7 W, n" L4 X( v, d T. C8 H' V. s' D
set trade-record-current( list (timer) (random money-upper-limit)) }: R5 e$ \( W7 T, B$ k
8 R# a, Y5 o) }- Oask self [do-trust]
" c8 N6 R; H% U2 K- Q8 m' D+ U4 Q;;先求i对j的信任度; I$ F! w* p1 Q7 `, O3 a( e) q6 r
% o( V$ W$ a9 Q7 f; B$ H' tif ([trust-ok] of self)# F( j: ~ i; m7 ^5 }( f# P7 U
;;根据i对j的信任度来决定是否与j进行交易[$ |( h. @7 U2 @) s z# e8 _
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
( ?: N, ^: G* ?0 ?$ W/ u1 ]9 J! O A' [! O! Y k
[
& a! l+ x. d- R
& e9 |/ q1 V1 edo-trade9 }9 y2 \& B6 W7 |3 \* O
2 }7 L2 B* K3 k7 ?, p
update-credibility-ijl' h. j- ?( F0 a" p- ^$ X
, @ h& x, [" E$ \- k8 h- xupdate-credibility-list
# |/ z) l$ w3 O7 t b2 B( U
; j7 h, X+ n: [: ?2 s" y3 P
* l5 @$ |' H4 ^ C' Eupdate-global-reputation-list
6 F) r/ [, x; t* G$ K. V2 z
/ d+ V+ F5 n- y! g% ?poll-class
# L4 @8 A( w \& f2 c: R0 j
' D) ]+ u. k0 b% A( S. Fget-color! G1 M- ~; [; J- I! g( m
! }, q# c( z8 k% I8 z# w
]]
" d! r3 H, T2 M( L( r; U0 T/ M; _. @4 X Y, i
;;如果所得的信任度满足条件,则进行交易- D. V- |* w3 F8 K' Z! m
6 K2 |+ q9 U: c d8 U+ M( b
[
6 r7 Z7 i8 U8 F6 C+ E2 Z+ T4 u, y2 l5 l
rt random 360
* o9 O8 Y" H) ]: q9 y( f7 h2 V
6 ^% f! [1 a/ h: ]$ yfd 1( U" Y* B' d4 s8 U! n) X" n
$ G$ Y8 s* Q# N+ m]! m5 p0 {0 S% n, B' m
& b# `- @- I: Q) Lend
2 H' u* |( W, a- [1 I$ e; I# U- l% I
to do-trust
+ }& }9 l( M, k$ F# uset trust-ok False* n3 K! i; V. X
+ }2 Q' `- K5 ?8 w2 u9 y( |5 w; u. E' q6 p' o Z: h. T
let max-trade-times 0+ V1 k; D- w( n0 G
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]2 n- c1 D) q( j! k- n7 F. u
let max-trade-money 0/ b+ h& Y0 N, Y1 S
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' `9 [( ~& A- g# P3 J
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
, N& u f3 b l/ ~8 J$ u) Q% k/ d# t6 ~1 U4 N3 J* n b
: q* ]' b. g1 W
get-global-proportion
: H' o& p9 \9 a6 glet trust-value5 V$ i' I' c5 |& N+ 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)4 t5 B0 _, w% ~- D/ _6 k
if(trust-value > trade-trust-value) v2 [3 T( Z) U0 M, _& V/ g
[set trust-ok true]' D( E7 P# d7 z+ H6 d: J5 v$ W' d
end
5 B8 m7 I7 R# f b7 M: A& J* ]; p! k5 Y. L
to get-global-proportion
' u- E- `1 D% G8 |& X+ pifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
9 S$ j+ I! I, N[set global-proportion 0]
) X7 S2 v5 r7 p[let i 0
" }7 F+ M8 T0 k3 y2 G- r2 K- Qlet sum-money 0
6 a6 E" [' x/ S. ~, K; _while[ i < people]
$ ?% Y2 |. s; h8 e5 z[
5 B; s- v8 `9 }. F6 k' Eif( length (item i
# ]" O$ _* \* |2 v7 ^. D[trade-record-all] of customer) > 3 )& S$ U# D3 t- U# Q! j' ^6 t( H) T2 j
[
! m# o" m3 o8 ?9 y4 i7 aset sum-money (sum-money + item 2(item i [trade-record-all] of myself))+ A2 C2 ~ ?- @8 M
]' S. x2 g# k( d W& Y* `
]' {. [) f0 V& V# L, u' z& D2 |& \
let j 0
" h: i A) N! s* V) ylet note 0
) X4 F% |- @* ?, uwhile[ j < people]) `' T0 T+ Y7 ~& D6 J& h8 X K
[9 }8 }) S1 n' @- F; F& @6 C: ]- {
if( length (item i& w- B5 Z8 l0 Q3 `& g5 M& w3 N0 z
[trade-record-all] of customer) > 3 )
6 X S) s% a. M q1 B[
% V' T# Q6 z7 F$ Y7 s4 J% [ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 G- Q3 W$ ~& y( M$ k+ q6 Y[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 l7 W# {3 C" a" Q
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
% P! h6 ?: X+ x3 e4 z; B# _5 H]
1 Q& W: Q4 U3 o/ D( P4 T7 ?0 N]
5 A; I0 L; c/ U+ ?6 a& M: Nset global-proportion note
* F3 B% j0 @! g- Z$ X- M]
+ w' k& ]4 l+ b9 R- D& kend
1 ^0 _. Q n2 q# U7 W" T: m8 I
0 d( G* t8 I o$ Zto do-trade
9 u) d5 v5 k* \* y2 B6 R2 B;;这个过程实际上是给双方作出评价的过程/ S: s6 F9 K; C: y" I: J" U
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
7 E2 T3 f/ B* \6 s. n& G+ `& nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
9 q/ Q3 E" T, K7 b( \/ E' j0 Kset trade-record-current lput(timer) trade-record-current5 Z% ?2 d" Q9 D
;;评价时间' a1 O# H& |5 |# n' ?
ask myself [
# a5 @: f% H" N9 vupdate-local-reputation
6 ?4 S+ B& h: F$ e0 Wset trade-record-current lput([local-reputation] of myself) trade-record-current
. y- M) A& s7 [/ z; ]0 A2 f7 w]
; m9 V4 T1 K9 f' uset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
4 G3 j' Z- X* @: T. S;;将此次交易的记录加入到trade-record-one中
$ A5 ]$ X' q1 w9 J) b2 Z0 T# eset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
6 \8 K/ i- S6 F1 b! t4 E( q4 x) z9 clet note (item 2 trade-record-current )
. `4 ~8 b" K) H; k' w+ s$ l5 Wset trade-record-current) @6 u$ ^# n0 n/ U
(replace-item 2 trade-record-current (item 3 trade-record-current)). Y6 w* T3 K8 Q0 |* o: u/ X
set trade-record-current
6 O( R$ _0 E L- E0 F% v: I(replace-item 3 trade-record-current note)
; C) [! R5 V" r. M) k3 S5 M! u% \' }) H0 w* b( N8 ~2 }
' W# g: y- K( }% V/ Y, Oask customer [
o* f& @; G* qupdate-local-reputation
7 ]/ d! [ W# A% g; h" l& Uset trade-record-current3 O/ H( L4 o6 \% z% k
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
6 @: q% ^3 g/ N2 g2 N0 V]9 f# \( i% K8 k
/ P* G) G4 ~( u0 v2 I6 m
( B' ?7 Z( P: u+ Aset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer$ { g+ j; u |! Z
' P: w+ l6 J6 s T1 y$ y
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))3 y& H, M1 a% A3 M/ e) Z
;;将此次交易的记录加入到customer的trade-record-all中
4 Q7 }, e% b. U1 uend
' e* K1 c; m9 _* \9 V' O/ Q5 M/ z$ I( ~" h# v1 Z' T: z
to update-local-reputation
0 m' M5 m+ B& |7 e( o) wset [trade-record-one-len] of myself length [trade-record-one] of myself* _* k/ M* b6 {9 M
# e# _0 _$ ?1 x; q# A
) F) W, y- [- D4 S;;if [trade-record-one-len] of myself > 3
0 z2 Z$ y+ n; C4 l4 a4 ~update-neighbor-total
9 t% p' W7 O& U" |+ v' O, F( o' E) L;;更新邻居节点的数目,在此进行7 j- L/ d& ?( F% F3 o) x. P0 K) U* k
let i 3! N5 H" h$ ]/ ^1 c
let sum-time 0) D3 ]3 z1 y3 ]
while[i < [trade-record-one-len] of myself]
, V' [% e# w- l[
( z1 z% D/ U6 l# }7 f lset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )/ k0 Y0 _0 q; C. {/ Q3 |5 C
set i- \+ T% h- d# Y. [) q
( i + 1)" ?* X# L6 V1 }+ L# y
]
* g2 [' J! ]. b1 ?1 g# plet j 3$ g6 f$ y$ K% e7 }
let sum-money 0" d% ]% X; j4 F' f- L# J* L m, c- `
while[j < [trade-record-one-len] of myself]
* F$ f9 v9 N+ L9 v[& a2 Y' T! I8 h- P/ e
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)
) x* l4 ?' L& O' B/ f" l6 p# gset j
! N! p+ S2 Y: O; T( j + 1)
8 O' j- o9 L. A2 t]8 t% P( X# @3 ^: ]
let k 3$ A, p+ N, y6 ~! P1 e. f3 B+ E' d
let power 0+ b0 R: r) x3 J. r L7 x0 P
let local 0* j9 c! J% V( b( p/ v
while [k <[trade-record-one-len] of myself]7 i1 _2 b# C" }; W7 d
[. S. F9 N9 R. J4 f- n( O
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)
" N1 ^4 N, u5 P( l; B9 P+ M) Tset k (k + 1), J$ w9 K: Y$ ^. a" y
]( Q4 n2 \; L2 Y7 C* ]: s4 r
set [local-reputation] of myself (local)1 m2 ^: E( J! t" S- K, |+ \; M( s- u( B
end
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to update-neighbor-total
0 I7 s) @, S# \1 e
$ F6 `% V* ~* Q( c$ m. wif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
4 n+ N: y y* C4 h1 T7 Y( T
- o3 D. H+ w5 \. {! O: J4 C, f2 M _+ Z n9 D; ?& d' I _
end
" V1 D: C# a, n' {+ p5 h1 C/ o+ C$ B* J s9 d9 p8 `& I+ P9 i
to update-credibility-ijl
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;;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。0 ~$ r- A- A/ Z
let l 0
# X9 b% {" p) P; M9 Kwhile[ l < people ]
- E# \' c! _6 ~! v1 j;;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)
% K: o M8 t- Sif (trade-record-one-j-l-len > 3)
( Y2 R! Q7 [- _ @, ` E[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-one2 F( A: n H) X3 P0 S* ?
let i 3
6 d2 Q3 H8 _0 Q3 v! olet sum-time 0
( _' }0 M k4 y; v! rwhile[i < trade-record-one-len]3 s$ t& _1 W8 ^$ @
[
- c! p: J" t" N# X$ _set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )5 l, w: X: n+ q, c3 ~
set i- G! B' @+ B6 [% [' e7 ?
( i + 1)
% `- ~/ L- s6 f]
; C- J4 j( _( B' {) o5 N& ?3 N; Clet credibility-i-j-l 0
( B/ y3 `0 s5 I7 E- c; P;;i评价(j对jl的评价)8 f' {% y4 k, X8 R3 W
let j 3
4 f+ o# _' q6 C2 ?6 }' W3 Z: I, W- Zlet k 4, Q5 ?* U/ k9 l+ P, b* {3 G
while[j < trade-record-one-len]
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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) R. Z* F* B$ {" N8 |9 H
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)
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( j + 1)
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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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. \/ ^. y o& ~0 M7 n8 ilet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
P6 `4 d( O# |) {9 _0 d;;及时更新i对l的评价质量的评价, g+ [% D- K$ e- r
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
Z# }; }1 T! Y! x& l: t5 a; ?set l (l + 1)
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end
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to update-credibility-list
2 H2 R- h, _) k" W* e6 M" N" @/ O4 flet i 0
& p. {* ?0 y" s7 j- @while[i < people]! X4 W, o. `7 w9 ^4 i% T
[& Q& B* C2 I- Z1 H5 {: ?
let j 09 F! ^; L K% k
let note 0
( }( u1 H. V, R+ a5 j9 ?let k 0 Y% n% j/ ~: j) ^5 ^
;;计作出过评价的邻居节点的数目( |1 p) O. T; u4 m6 m
while[j < people]( M) R7 h1 n" y4 Z, L
[
+ s4 @1 h1 |1 `% F1 Z& |, _! vif (item j( [credibility] of turtle (i + 1)) != -1)
+ s0 D; |" G3 h- t8 q, }* l;;判断是否给本turtle的评价质量做出过评价的节点
% B/ B. X2 c! m[set note (note + item j ([credibility]of turtle (i + 1)))
, v4 a* v6 d( J6 X;;*(exp (-(people - 2)))/(people - 2))]
! M8 e. _& Z+ `set k (k + 1)
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set j (j + 1)
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set note (note *(exp (- (1 / k)))/ k)
+ ^, l+ a/ v3 kset credibility-list (replace-item i credibility-list note)
% Z- K* p' i. Y3 I/ y7 J+ L+ Oset i (i + 1)# p3 i5 M: E) C! s- P% C
]
/ b1 S7 {5 d& }0 M" p+ kend# f$ q3 _' p8 y0 ~7 b/ f+ q$ H5 A
+ U! y: ]9 }$ Q" g' J& Bto update-global-reputation-list+ g* s$ F" ^7 T& Z _6 f, F0 m# E
let j 0
( @/ \) T, n iwhile[j < people]2 o" s+ @; k: _' s
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let new 0# ?% H: z$ @& Y6 \: |( K
;;暂存新的一个全局声誉4 K( E/ [' _, Q0 z2 g7 M2 g9 f
let i 0
( j! o4 P! V1 |) @; ~let sum-money 0
) T! F' C2 P, a+ k8 H" p7 z: N. Q, V5 alet credibility-money 09 Z" S/ y: S) u. h
while [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))9 W! Q8 y1 c7 Q% B! J$ K
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
. w+ P, [+ H% cset i (i + 1)
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" ~/ w5 B6 S* \ [" plet k 0! N0 n. w' }2 V J: F
let new1 04 G8 B: s" ~5 n1 x- _
while [k < people]
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$ J! {, d2 H! `8 M( 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/ m4 w) Q6 J, c. Vset k (k + 1)
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* @8 X' Q- W g; U' cset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ' l/ a; X. f, \# B0 }9 P; [
set global-reputation-list (replace-item j global-reputation-list new)
7 g, H `# H. F' k" `# Wset j (j + 1)
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end
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to get-color, H' l: ?1 h- p' F) ^
0 l4 o' F0 G x; @: ]6 qset color blue
7 l, _& q3 F, m1 D1 nend9 ~ c3 l) J y& [4 x5 v! _' G3 I( l
) y1 V9 Y- T# w# d; jto poll-class
5 ]# s2 N4 ]5 ?0 R# }. t+ b. s* Oend) q* d6 K( D1 T' |' K! n
* o* h8 Y3 v/ l& }: O( B7 fto setup-plot16 ], b5 _( t. |. `- i2 u3 D3 |
2 k' _" |+ M. Bset-current-plot "Trends-of-Local-reputation"7 f; }5 z% i( G6 h* c8 }7 s& N
9 V% `+ {" d: f, h" Zset-plot-x-range 0 xmax
5 O4 j2 t5 p, j8 y9 A6 a0 A- O/ k7 h- ?7 H( j* }- b
set-plot-y-range 0.0 ymax
' g6 M5 P+ x& ]& `7 }3 T2 yend
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7 P0 G- v& j2 \* }to setup-plot2
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7 f# d: F0 {8 Iset-current-plot "Trends-of-global-reputation"
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+ A* c# j0 L$ g% [$ M. F3 yset-plot-x-range 0 xmax
/ S! g6 r, Q4 j* S2 ^$ r- d, z6 D9 k& x1 u, B( \& {4 r& }) @
set-plot-y-range 0.0 ymax
/ p+ x3 W! b+ {1 n$ j# H+ P2 O5 Nend
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to setup-plot3: K( ?7 j9 }. `8 i" k+ n; `' l
' r4 F. g6 G% S3 ?' jset-current-plot "Trends-of-credibility"/ B2 c5 u( X6 L- |& D! B/ W. l: Y
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set-plot-x-range 0 xmax; K- v3 I; F) a9 Y3 X' i$ R
5 A# ^& @3 N+ E& X; K5 d/ d0 e
set-plot-y-range 0.0 ymax8 D/ T( T1 Z& g- N' y/ A
end
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2 J8 J3 ]$ t8 K; p; i! g2 o5 [; Wto do-plots
T; X0 b2 u" L" C$ Wset-current-plot "Trends-of-Local-reputation"
4 q; R1 c# ^1 i t7 u) K( Sset-current-plot-pen "Honest service"
2 Q4 s% |& H) ^) a- ^- a5 [" `end. m6 J- B) l6 g$ \
! |2 e' h: u! w6 C; j3 `[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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