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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& k- C6 `" J. K, y( C
globals[1 G- V% S8 ?0 t+ Y# {6 k$ k
xmax
G9 d& ~! w( E) M6 _& l& }) {ymax
2 P6 c7 |; r l6 S2 [/ g! Y: sglobal-reputation-list
; v$ g( g4 x& O0 o% F# S3 {8 k
" {+ {( K/ B0 D B;;每一个turtle的全局声誉都存在此LIST中! r/ R, Z6 N7 c; i# T7 e
credibility-list. n4 V! t( F3 i# B( P
;;每一个turtle的评价可信度
) c' M; p7 t3 u) }1 t& B/ `honest-service" U: y4 u9 K1 u' x) u4 ]
unhonest-service. r7 h* S: |: P) w) w: r& @
oscillation: P2 o6 M9 W0 d
rand-dynamic% j: c2 X5 m4 [, l. ]+ V8 t
]; f- w4 A- h6 k% _4 O
8 _% d7 M4 T, B, N. R# bturtles-own[
+ b3 |! n9 T. M" b: J3 s" K# atrade-record-all
2 X" ]/ u# D; d6 }! t;;a list of lists,由trade-record-one组成
" H+ ?/ _# u/ V. W7 U5 ltrade-record-one4 { _' w4 b4 d
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
9 b8 g9 }- \6 C
+ @& t0 v4 E7 \;;[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]]
0 s: D' U* m- g% ~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]- R; A$ w' v& l2 [6 [! w
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
1 B1 S! D0 L* R( h$ q. K! X. Cneighbor-total. e& V0 y7 E! y0 c/ f. R
;;记录该turtle的邻居节点的数目
# L" U; Y: X. r/ mtrade-time
" X; ~% f0 d/ o1 m8 ^: a) z( V;;当前发生交易的turtle的交易时间7 _2 P' w" p. F5 F) _3 p, e
appraise-give& q% |6 l' ?0 N/ Q; z: B; K
;;当前发生交易时给出的评价& h: B, ]0 h4 [ F+ l7 v
appraise-receive
' n# l" B5 B1 E# E ]" A% A; b, c% _;;当前发生交易时收到的评价
2 w9 d! z0 r4 d; i4 zappraise-time
) e) M6 R0 x) D' V6 J;;当前发生交易时的评价时间$ t1 J, w Q# s
local-reputation-now;;此次交易后相对于对方turtle的局部声誉2 C& e0 A# ^, s) h) ]0 U
trade-times-total8 G q8 H7 J$ I# m
;;与当前turtle的交易总次数
$ g! K; H. r. Qtrade-money-total
$ O, P, j1 O1 C8 J8 u% r4 o;;与当前turtle的交易总金额
J+ `( P8 F$ x) t+ y% U) }7 llocal-reputation
9 ]6 Q' u* T; H" Kglobal-reputation
' C5 N/ O7 @; n% H, icredibility
9 X4 b1 D7 j- Q7 \1 Y& x;;评价可信度,每次交易后都需要更新8 k( N ?- y' n/ L
credibility-all
3 [4 A. N+ v4 c4 X- I1 s1 s8 E+ u) e;;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
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;;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
" L: I/ C6 n# C# m& B9 W/ E. f) ]credibility-one4 G6 E0 t. o$ ?
;;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
" K9 V7 k1 |' S( E; wglobal-proportion& ` l R* `$ G2 @
customer5 l9 J4 [/ d5 v ?
customer-no
, H/ ~) L$ B/ R0 \$ g7 m6 m& T6 {/ Ntrust-ok) F9 M$ {, F' d8 t+ w/ c! q9 O* J
trade-record-one-len;;trade-record-one的长度0 z% q$ I6 N3 h' K, O
]- j( e, f9 @: ]
# c2 g4 t0 ~! D;;setup procedure$ k& m4 E- n% S" a' ^8 Q% M
' }3 u3 w8 f6 u6 {to setup
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2 s% J' ~% \/ F9 g. }6 m$ W2 \# L4 {ca
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' E7 D" A/ a2 Iinitialize-settings
% ?+ ^" U3 W* z* t/ e% u$ S& o* ^ v0 P) \/ r
crt people [setup-turtles]. T8 P5 _- [8 J6 i' R6 h* F
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reset-timer
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( E, F* d G9 [4 F- S, j' R% S$ Tpoll-class; R0 o1 I( `% c% y
) ~0 W6 c" L6 Q& C, ~$ Ssetup-plots7 ]& D/ G4 v! t! ?5 p @% K, H
; ^. q0 x$ u9 ?
do-plots
% \6 k0 n: n L8 Wend' c, v( g; i) t: r$ U% M- @' Q: Y: H
! A/ i) _ J1 d5 mto initialize-settings* m; d. q2 N. P* g
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set global-reputation-list []
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set credibility-list n-values people [0.5]
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set honest-service 00 ~, n w% n$ n3 a
# X7 f- D1 E; w7 B4 h v- u/ hset unhonest-service 0
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set oscillation 0
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6 ~6 i* A6 r4 V, C0 Q# \4 n3 Sset rand-dynamic 09 y. O. b( f7 Z w7 \
end
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+ u" R7 w& d# {8 vto setup-turtles 3 x; h! I9 q! o$ {+ y$ s& ` F, N/ _+ s
set shape "person"
' T: s1 k5 d; Nsetxy random-xcor random-ycor6 a# W7 n. L" ` b( W
set trade-record-one []: |5 L3 P' O# l# B6 ]
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set trade-record-all n-values people [(list (? + 1) 0 0)] 3 K3 t9 J B9 K- i3 w) F9 r& I
# q3 d# [- H5 u* _) Q$ l) iset trade-record-current []5 F9 g5 B0 V) q0 S) f
set credibility-receive []. e+ r3 P- z' `3 b' P7 [5 y
set local-reputation 0.5
; b1 S" `9 {/ Z, W& iset neighbor-total 04 ?0 G( v3 d$ F1 @3 o) Y8 l
set trade-times-total 09 K/ r1 ?, J/ x* H+ K2 v' k+ i
set trade-money-total 0
4 q4 @0 N6 Y$ K$ vset customer nobody8 s* I2 F# v/ `& z; I0 _, N. C0 p
set credibility-all n-values people [creat-credibility]
! K$ L5 _0 u5 R9 L* D X2 zset credibility n-values people [-1]
3 `5 ^# N# q. ]7 ]get-color- y$ j- s) J: a% r
' t( L2 c. C8 f5 {; x' rend# y2 }; e0 y2 Q5 A1 C( h8 o) o
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to-report creat-credibility
. U8 T$ [3 ?2 T( T ^! ?report n-values people [0.5]
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to setup-plots
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set xmax 30
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set ymax 1.0+ n y- c. b# q" s1 D- c
8 N! ]4 q( Z7 r; M8 j, X
clear-all-plots4 H2 T7 O% j ]2 i( l
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setup-plot18 W+ R7 ~5 k3 `" [1 s5 P" t& o
0 n1 }- g, H- J2 Hsetup-plot2$ q- i% f2 W' U# ^/ q
3 _; e7 ?( n" V( c. F0 p0 a! `
setup-plot3
1 g# ] B: `/ V- z! t: Vend
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;;run time procedures
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' P2 I! R- B) u9 ^to go w& Z% y+ G9 F
# F. X) O- M) G* ]- l! fask turtles [do-business]
6 N3 v9 v* I! o2 K1 |6 c8 ?, gend8 m* m) z- |( U3 L t! B# [: S6 p( W
) t! j/ }( n- T. E
to do-business # B9 s( O; y; S+ k8 Z- k D8 N
8 Z; G6 J6 F: F& V, D6 S( @( c5 L6 u f' @ R6 l3 W- B6 o
rt random 360
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0 ]5 E- c! w: Q" efd 15 s- h2 c' O7 {- H
% n3 Z& x! J6 r+ H3 H: C. S
ifelse(other turtles-here != nobody)[
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( D& {8 d& ]- i. h1 Y0 d! Hset customer one-of other turtles-here A1 x# P; |- Y. {! P3 O, u4 W
% C& g) e) T% V/ Y U. Y;; set [customer] of customer myself. x; @0 k7 @8 a: e. _
0 c' R4 N4 r! I2 E* gset [trade-record-one] of self item (([who] of customer) - 1)4 E: k% h/ V# S- O$ F1 M1 f7 W' _
[trade-record-all]of self
# W: Y, P) \$ ^( m+ o# q;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: T4 _' L1 r7 k. v' ?
# m- |) O% N. Q6 j. @* Q& W% Sset [trade-record-one] of customer item (([who] of self) - 1)
3 {2 M: i. {5 o8 e+ n. V[trade-record-all]of customer
g( { X3 \4 E9 P4 O4 j6 y4 A3 F- U/ X* S2 X
set [trade-record-one-len] of self length [trade-record-one] of self# w9 X* F& \* ^) t' X5 w( k: b
2 c0 T1 I* U0 }" qset trade-record-current( list (timer) (random money-upper-limit))# s- V7 `+ z- p
* v; A3 |; p4 m- j' |4 p3 D5 B
ask self [do-trust]
" L2 V7 B0 U; n E; j;;先求i对j的信任度
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R7 i* f) L5 A, t1 l9 _; U/ X2 Hif ([trust-ok] of self)2 ~3 H* z/ B, l8 S( V
;;根据i对j的信任度来决定是否与j进行交易[. u& ^+ G9 Z7 h5 {! W9 L) v
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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# h0 J9 ], ]8 V6 x
do-trade
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# x A* a1 R) B% A( fupdate-credibility-ijl" a5 T9 Y k; H% \1 f( |* `* u/ F7 w* q
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update-credibility-list0 ~0 a" v, x n: I6 ?
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$ J. }8 h7 |/ {3 F8 u$ |& ^4 iupdate-global-reputation-list% I/ z6 @) | }
8 Q8 g$ N7 B ?+ x/ s' |poll-class- ]" I0 ~! G8 c! S8 e7 T0 O! w5 E
0 | k; b# {- A7 v
get-color: s9 p! i" A1 m( w+ j5 Y: j
( X1 R8 x$ V# E6 z8 y]]
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;;如果所得的信任度满足条件,则进行交易
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[
4 `5 } O( o) \ a8 E/ O
2 r5 w8 [% O% S6 yrt random 360
% @; ~) C# o+ \, I; ^6 I
" O6 w5 d6 T7 O' Q1 tfd 1+ r* X" v9 I+ y: I. h& |* k
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end5 L9 t( @; G! h% r, ~1 k
- ]% @/ h) R9 Z+ `: ?) kto do-trust
5 [. J) M, r+ S) P' W0 F$ ^/ V6 \set trust-ok False
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# m+ h. [$ e6 s& m$ }: k4 @5 Llet max-trade-times 0
o6 M2 N9 q; o4 ~foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 J! I( w" L y. o7 E
let max-trade-money 05 ~& ^/ x2 Q& c, Z2 h
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]* k' \2 ?. ^" j6 q
let 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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# r+ \: W5 a. X# f
get-global-proportion
0 c0 H* v4 B# ilet trust-value
: U! w; X1 {2 Y( P7 i* A: i9 dlocal-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 O( F6 t7 kif(trust-value > trade-trust-value)
V' k2 W6 U: k! H G8 U( i[set trust-ok true]
! V* @4 F( A' n3 m+ _2 eend
5 c( ^# P! q6 | R9 B, y3 L1 g# q7 F7 C' O1 ?$ ?5 ]6 y! c
to get-global-proportion$ F. X$ V9 q' r
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 ~. n& {0 S+ A5 \, N4 W. m4 r$ D[set global-proportion 0]
; A' x, t# ?! m% f[let i 0
; [5 o: |& @4 O3 M* e5 p1 y5 m" Y# [let sum-money 00 I1 Z3 R# f( a& [5 k
while[ i < people]- e" Q3 b% C( r% e- F; L' F$ V
[
1 p p8 }. r0 T2 Y0 }if( length (item i
' E& I v- f, f! S/ i) P[trade-record-all] of customer) > 3 ) Z9 N) x, m m! ~
[; Y( K2 B. f+ k% L
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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]
! y) H* |! x& q2 ^$ W) W6 ^% ]let j 0
+ ]/ d. i* [8 U$ Q6 Q3 e- Tlet note 0
8 F" ]' [) E2 x x9 {/ ?5 ]$ qwhile[ j < people]/ m# t( S3 y' c! P7 P0 K
[0 v! A! [& ~9 c+ N; Y- l
if( length (item i
. W5 H- o8 F! _ @% Y[trade-record-all] of customer) > 3 )
5 Q1 V( g M' o[% |6 g+ D! @( Y0 S
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% Z+ d& ~* P& x8 |) z: m# G) ~[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
9 s* t7 K9 W* p! F1 F" j. D[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]! v2 V# b1 s; V* k2 c3 ]3 Y& j9 F
]
& [2 n/ G) n1 @( B]
5 H" m5 P7 N; j/ `set global-proportion note; |1 i8 v, x5 V+ _; [* f
]6 X$ W3 j& k4 E% k0 ?, Z: s% s
end
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to do-trade
; A" N! V$ [ K;;这个过程实际上是给双方作出评价的过程( n5 ?& _* a7 m9 V
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
0 z, F, `! ~2 Xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
3 ]3 L7 [& p# Q0 I" ] yset trade-record-current lput(timer) trade-record-current- C+ Q5 y) Z( o* N
;;评价时间; {1 `& I9 \: Y% Z/ c
ask myself [, X/ W! O, l/ \
update-local-reputation X( R& Y4 v b: Y, m( r- @
set trade-record-current lput([local-reputation] of myself) trade-record-current
0 ]# q! ]; ]2 X( s+ n5 V5 R]
j$ S6 H% v4 ]! r# C5 w) S' mset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) C* T( F, s, T; P* Q" m R: b
;;将此次交易的记录加入到trade-record-one中/ s* _* b- O, P# w l& i6 J
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 Z. m3 \& e; x% V |let note (item 2 trade-record-current ) I I9 a" m0 ~( ^$ B' v$ U4 i4 a
set trade-record-current
! a8 s+ {, D9 e- F* q* y% b) y(replace-item 2 trade-record-current (item 3 trade-record-current))
" _' H Q6 G u3 \! Fset trade-record-current
: G& R i- _- E8 L3 l(replace-item 3 trade-record-current note)
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/ }6 Y, W$ n2 n" Oask customer [
. p3 v4 q+ H8 q8 w! gupdate-local-reputation Z: t& v- z, s6 z2 L
set trade-record-current
" R: [. } Z% a7 C y; |0 p(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ! s9 Y0 T) J; F" i
], B4 a' X( E: y+ l% Q
4 I, ]' u- r E& a6 E5 H- f6 [( z' {+ h) V0 s
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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/ _4 K1 O a2 i- lset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))( ], b' C+ R$ [. Y
;;将此次交易的记录加入到customer的trade-record-all中
9 D4 m/ W3 }1 G# ^- m$ z K3 Iend
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8 i. n7 }! u8 J, F1 W& {to update-local-reputation3 \9 B1 D' l. K# e2 Q' u9 u" r$ b' j" U
set [trade-record-one-len] of myself length [trade-record-one] of myself0 x- r# ^ }) N- y: C$ [ }
* n8 I: P6 \# x$ ~9 d7 ]
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;;if [trade-record-one-len] of myself > 3
$ }# O( g: G' h* \update-neighbor-total; z6 R; E' d2 Y: v t1 N- Y3 W
;;更新邻居节点的数目,在此进行; r* @& D1 @9 X+ x
let i 3$ T' k% j% Y, m+ n! m% u& I5 s
let sum-time 0
& B0 Z1 R1 W0 S9 a! r4 i7 \# P; ?while[i < [trade-record-one-len] of myself]: z4 l( E8 J5 x% v: v7 s3 W
[
8 e. `2 F$ i! B) u) n" ?set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ); f% V l; X2 X( {3 e3 B9 _. O
set i
; F0 [/ e ]2 C5 a( i + 1)
+ j: W6 l) l2 z- g. t7 B5 j]" ~6 r, I y% _6 Y' k: k
let j 3
) {6 J' B+ Z% Q" V- X k4 h6 ylet sum-money 0
6 g9 h) i3 q. {$ _3 w+ G' y7 B& ewhile[j < [trade-record-one-len] of myself]
& O, U: w) {4 i- _' B; j[
! K( s/ m3 U+ i% X. q" zset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)0 ^6 }& i" ^$ M$ X4 k4 D
set j
$ ~7 a# L& b* D2 v( j + 1)) o' n1 p4 @9 |, @; l
]
/ Y) R' T. S3 p# k& \3 s( }let k 3 q8 O u, V6 J: S( G
let power 0% y% v: R8 {5 ]( w
let local 03 Z0 d- v- @, c C; K' n
while [k <[trade-record-one-len] of myself]
* g5 u$ d$ d* p+ A9 l[
( u$ j! d a( g; S( @. R8 ~+ jset 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) 4 H( I; d" [+ B9 ?% G9 J# z; T
set k (k + 1)1 g9 Z" U$ Q5 u9 D! t1 `
]
" h: I' T+ Q- [# z0 E, W/ i: @set [local-reputation] of myself (local): n7 E* Q2 {9 s: W' T+ R
end
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) {' M8 d5 C7 E5 ~3 }( X! ?3 Fto update-neighbor-total
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, g( h" A7 Q* f% M+ A; E0 O3 i# kif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]4 T( ~3 m& K' B& y
; x5 ]0 A2 b& j& z5 E/ h1 N- ?! v5 Y0 O, J
end, M: D4 H F u' c; W, E
. `% M7 Z# Z6 F- M& ] Ito update-credibility-ijl ; z% ]* N U* A# `
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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。
. g) [6 ~( q# M* L8 l* blet l 0
0 F& T0 l1 M& P6 J% n$ j3 ] V) jwhile[ l < people ]
& ]( B$ c+ ?, R" A;;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- X2 Z6 i1 t |( B5 m# |3 |
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 m( B2 [: q& i9 [$ j9 n! c# A _! [if (trade-record-one-j-l-len > 3)
" f# q1 W2 ?' y% W[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
5 p1 ^' E5 n1 ]* N, c( plet i 3
$ K4 j5 F: p0 L" M5 Plet sum-time 0" V/ V _6 r! M a! M- r6 E! g7 h
while[i < trade-record-one-len]* I) {* e2 g; w4 {
[+ i. ]8 w/ ]" l: t5 L, q
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
" B& E6 ]; b0 C# P# _: t0 Jset i' l+ l& y5 R$ X
( i + 1)" f2 O! c8 t1 p+ C) a: O6 S
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let credibility-i-j-l 0& m# s r- z m& r( N0 }
;;i评价(j对jl的评价)
, l% S2 j" @& E, r: Tlet j 3% h' C5 N5 M* t) w ^" a/ t
let k 4/ @2 I0 X# ?- g; f% |7 c2 K
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. d9 [+ e5 T3 v4 {. r
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)9 O1 e X2 z5 \1 p$ h8 y E1 ^* H0 t
]
" N' Y: ?3 \% A9 M, w3 V( k* ]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 ))( v1 m1 |) D u, W7 `6 G% b' [! h4 u( ]
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: |" o1 ~0 H5 r P0 n8 L6 s: \let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ l7 e' |" j2 o- k8 K! k3 a;;及时更新i对l的评价质量的评价
- }1 \0 R8 U& }- u9 C5 b# K# pset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ] M3 A% T1 ^' b+ W/ t4 E- l
set l (l + 1)1 u5 f A0 L6 R+ w
]. ~& I5 i- d/ X6 v
end+ {+ d, z' |" B6 u9 d2 a
. l8 J; V- Z6 rto update-credibility-list
* P" F' K! `3 P( n4 y, qlet i 0- o8 W+ f" G2 j0 [8 e8 m. v
while[i < people]7 ?* \/ N# H3 a" K: \) e; Y
[
, _' n' E9 R9 H0 t& F: `let j 0# B/ V; y- S) `
let note 0
' F9 P9 z7 z# v T3 llet k 0$ T) a( V" Y3 I1 ?. |- r# y0 P- R
;;计作出过评价的邻居节点的数目- d& s3 R# d) r% P5 H# U; c4 @
while[j < people]
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1 {" Q. k0 S& a4 pif (item j( [credibility] of turtle (i + 1)) != -1)7 H+ m9 L7 U n! I9 S1 D
;;判断是否给本turtle的评价质量做出过评价的节点
& f( ^# z; d- H& q[set note (note + item j ([credibility]of turtle (i + 1)))9 m. i! d: i5 M$ \7 `
;;*(exp (-(people - 2)))/(people - 2))]* n+ G! _/ \7 U/ j
set k (k + 1)% ~: o2 k' Z! Q# [2 [0 ]
]6 T/ S, k9 o1 T: v6 T( Z
set j (j + 1)8 G- P& _+ A6 p: U3 ^
]- |3 ?, j( I. \. k
set note (note *(exp (- (1 / k)))/ k)) i4 Z3 `7 B& W
set credibility-list (replace-item i credibility-list note)
0 d6 O# v9 w0 l5 C9 mset i (i + 1)+ W; i5 t) W, ^6 E3 w$ E: X! M
]
" V+ H" D% g& v4 kend/ O( x' x- V2 ~" B* G+ g
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to update-global-reputation-list3 R+ M# G! t6 a1 Z
let j 0, X$ h6 s7 G8 s
while[j < people]
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* y+ C3 {+ t9 W* G, zlet new 0
1 z& f8 ^& w( j8 ^! J% i( P;;暂存新的一个全局声誉
6 Q8 W: C8 F# M" Q- k5 c) Zlet i 0
1 r& ]$ |- N z. E5 `$ alet sum-money 0
" \; Y" w% o& |! s" Rlet credibility-money 0
$ O! x4 e' j8 F1 ]$ _0 Owhile [i < people]( k8 ]$ s `- s F& H
[
: U; H8 U8 Q: ~2 _1 t3 zset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))4 X7 V! ~' C# V( F
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
8 l+ M i; h [3 N+ P8 k, tset i (i + 1)
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3 E$ v! f0 E( ?$ _! ? llet k 0
# F5 i& r/ |0 D5 \7 j+ K# vlet new1 07 `5 U* c8 L: j' k
while [k < people]* O0 [ K b" m0 \9 E4 G# ~8 b
[8 S0 h1 y1 l Z0 l/ Q
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)" [/ |8 P+ G3 M
set k (k + 1)* H# M# ^4 q( a$ w& V) I' p9 V
]1 x( @# t, p D% P7 M- ?7 Q
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( X$ e7 O1 m1 yset global-reputation-list (replace-item j global-reputation-list new)' s3 w2 j$ H! V" D% o" I1 \
set j (j + 1). g s- _# {2 y
]
7 h7 x" R3 [+ ]% X, s; V ]end
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to get-color
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set color blue
& }/ U* I6 @7 [9 jend# l& A, q# X' `" q, `% q3 Y
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to poll-class/ j: R1 ?" h' v, d. V
end
Q+ V9 M# q7 M8 |7 I% |" b$ d. L& t, b% s% d
to setup-plot1
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set-current-plot "Trends-of-Local-reputation"
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& `6 H' X8 `% F4 v! u/ c% j7 Gset-plot-x-range 0 xmax- L L9 r6 ?8 A" Y8 c- Y& V
2 ]) p" N% ~$ }: I. Q; P: ]
set-plot-y-range 0.0 ymax5 z Q0 F% W, |& D
end
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to setup-plot2) ^. s+ R" t# D
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set-current-plot "Trends-of-global-reputation"
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/ w- Q; ?# V s& fset-plot-x-range 0 xmax9 }, ?. p1 b. O. H W- ]1 v( A/ o$ M
6 Q/ C7 I) c: s: f2 ?: k+ v3 f4 z
set-plot-y-range 0.0 ymax
" T& [7 E: V1 I# q: {$ uend
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7 y/ o- r f; u! J3 Z! uto setup-plot3
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set-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax
3 ]0 V0 X+ Z- K1 ^+ f. r
1 x# {( B" A6 }$ d, Wset-plot-y-range 0.0 ymax& B$ _/ ]& Q7 [5 t
end; u/ z1 e& f% {2 W
+ \: W& T4 l0 U) tto do-plots r2 C3 S, j2 V3 Y- ^( `- b
set-current-plot "Trends-of-Local-reputation"
& F5 o+ _# }9 p+ @set-current-plot-pen "Honest service"' j! l/ k9 V1 M; T! e% D
end; Q& o. j1 \2 _. h. P1 [( i
( `3 c3 x7 q) `7 _ N6 `. B" v[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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