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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/ S2 R; ~2 g8 ?0 e
globals[7 e4 ] g& N8 m {$ z# D# E
xmax
5 j2 ?9 p% p( S t- Vymax
5 @3 p/ Q- A- Hglobal-reputation-list
+ l# d% L. _$ L( u# T4 ^% N
5 G2 K! _2 D( c% f;;每一个turtle的全局声誉都存在此LIST中
1 G. L0 \- g" L; d& F3 c- X9 H F1 ucredibility-list
; Z4 w/ \, a1 ?& Z: e;;每一个turtle的评价可信度
* _) g0 c& Q C# ?1 rhonest-service
7 B! q) n* K5 M, L5 [unhonest-service
6 y4 y% E6 }- I# aoscillation
3 t7 e3 E, Z/ E0 A$ Q7 D! Z% |rand-dynamic
& j$ J/ f3 w, V. u, S& [- E8 w- p2 Z]
/ A: Q1 G1 @) g
( ?7 H( |; `' I( t- xturtles-own[
( I& N6 t% u% F& H3 w( \- {trade-record-all; F3 g& ~) f- k% G" F
;;a list of lists,由trade-record-one组成
6 t/ `3 w |' Y) [; Y; r/ r/ I" `9 c5 _trade-record-one1 Z+ d6 t& |5 l$ M6 M8 }, z
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录" D; Z! g! I2 f: z. }+ o* |- k
& n" H$ W1 G. A;;[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]]' L: k+ J$ B, p' m/ g' l+ H
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]2 z3 W' g& f: ]! X" p3 [3 I" g
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
& [3 p* m) n' \ ?8 t1 tneighbor-total
. @4 Q4 {3 `* g/ t% z" O1 y. t;;记录该turtle的邻居节点的数目
4 F r' x# s7 ?6 `2 r0 r( otrade-time
4 m% \1 G9 V; F5 n1 C;;当前发生交易的turtle的交易时间' p* b h: z, Q) F& i
appraise-give0 K8 c- D! o: Z) e9 `4 V
;;当前发生交易时给出的评价9 Z$ q% q$ U6 E; z6 o/ u
appraise-receive
- i E, G( c7 b;;当前发生交易时收到的评价0 r- h3 i" a- ?$ a- k: x1 d
appraise-time9 a4 k) D, |; V! b
;;当前发生交易时的评价时间
; D9 x8 [6 V6 N# `% ^! olocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
5 R' ~% [0 S* h0 n: Ltrade-times-total
3 m8 v& W+ I3 O" r;;与当前turtle的交易总次数8 c% u0 d. u# k9 ]# o6 @6 h
trade-money-total
( x* c0 R1 E) H' p4 h4 u;;与当前turtle的交易总金额
* _9 i& ?5 ~ l5 n( ~ _5 Dlocal-reputation
- z* y. S- y# zglobal-reputation
V* K* [9 h* \ f$ rcredibility
9 i8 ^8 G! h% w; |' w;;评价可信度,每次交易后都需要更新
7 F: k+ w( g2 P% Zcredibility-all
" G. D8 Y# ]5 C m7 e; Q. P9 n6 S' R;;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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: w/ N9 ]# O8 T d8 _5 r! 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
8 Y, ]. z I" P3 p( P. jcredibility-one
7 D4 P1 r z, W1 E" e0 T;;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
' I; ]! u2 G, J, p- \$ o `8 U8 lglobal-proportion# x: b- \; p4 e1 g6 [2 Z- |
customer
u/ c( T- ~" i: E9 W9 N3 |7 Icustomer-no
9 c' X5 g h$ V6 \9 [4 r0 l( X7 Gtrust-ok- P2 l2 C ~% o
trade-record-one-len;;trade-record-one的长度6 `. O7 _+ } R' d
]$ ^2 `+ w2 G+ c6 I3 Z" J
4 z( D* w; j& z;;setup procedure
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i4 x$ u w) b7 e2 e# Sto setup- ], H% l! w4 I
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/ w+ m6 e" b4 [! Z7 iinitialize-settings
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8 O, E9 m, H- V! H- vcrt people [setup-turtles]
s6 G0 x6 x5 S8 O3 t' ^9 m/ E8 s1 Z u+ }8 e" _3 |. P
reset-timer5 X" [9 X/ J/ o4 W
M* L8 @' v: d* C8 p4 hpoll-class
0 k# G" p* X/ @/ g; D
) E2 w# d8 J; {, ]) zsetup-plots$ {) U9 y$ O' p' s) M, q1 S
4 A1 Q7 f2 f, M
do-plots6 E. f1 D7 O4 e# }" L1 O8 K% `
end
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to initialize-settings
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set global-reputation-list []
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+ f/ g: G; v9 X. S! Z. z* nset credibility-list n-values people [0.5]% @$ N% \, | Y' Y
# s+ M! V+ b4 K, V& x% F
set honest-service 02 i# o4 n: e: k$ @( o# z( ]
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set unhonest-service 0
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set oscillation 09 a* g% P8 U* G' p, I
/ i- v* }6 ?) Jset rand-dynamic 0+ _ S3 e# N* K
end
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X7 R& K P% R4 S" }/ v# mto setup-turtles
& B7 v& s4 t5 \4 L( F b z9 T& Jset shape "person"% h4 V! N m' \, S2 v. Y
setxy random-xcor random-ycor$ i& J/ l" _: s# a, ?1 E9 o( L2 f0 w, M
set trade-record-one []
8 l. B! m6 _3 b0 C) \9 _9 m2 n5 V6 b& O# }) [! ^2 x$ e
set trade-record-all n-values people [(list (? + 1) 0 0)] # |( N7 {0 X: Q3 D& N) C
& ]0 X/ H3 w/ `& j$ _& P2 w
set trade-record-current []
6 C: L( [3 p7 a) A3 a6 u" Sset credibility-receive []6 J X% a. ^+ o* E2 @/ ?4 x/ J
set local-reputation 0.5
# d: I( h+ u3 O9 g8 ~% iset neighbor-total 0% G( M+ o. P+ g* ?) E) E
set trade-times-total 0$ X6 H% b0 G" w4 y7 x: \
set trade-money-total 0" w1 Z4 |, B% v/ b0 Q1 Z& V9 F
set customer nobody. w& e4 h/ f# { y: h; j
set credibility-all n-values people [creat-credibility]- l' l6 H, s6 ]& s% B
set credibility n-values people [-1]
! X; V) P& K: M5 G5 g' s% B5 Pget-color& c$ H& o4 c- `' T
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end
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to-report creat-credibility
# Y& `& _' D" D0 B! N0 ?: Creport n-values people [0.5]! O8 y+ L; C3 H, p/ r
end( F2 o: k3 Z4 \. W
6 I, Y0 W# k% o
to setup-plots# x2 Q. R4 ?7 _
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set xmax 30
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set ymax 1.0: [7 B3 m* p5 C! ?7 `/ v/ l
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clear-all-plots
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setup-plot1
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setup-plot2
x& D' G! Q5 T4 ~' w
* l/ `& t1 y' J/ t4 ?; Ssetup-plot3" w# X m% D4 z
end, H% K; \2 J: S z; n
$ X: g( M, Q1 B( z5 ~* j' \
;;run time procedures
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e; X. Y% k* q: |to go* S7 Y; g# O7 h# S: b/ O; \
* X' z' B; B. i$ }. D% Z$ ^ask turtles [do-business]6 I& L1 X, ?4 H
end
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to do-business 8 c% K M% O+ p
; Z) U3 O( ~& H& U. Q9 {
: b0 [4 m$ L/ F9 P7 m& M4 Vrt random 360# u( r" R# O6 T4 E
6 q$ O. H+ O9 Kfd 1. t! p y5 _. N6 |
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ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here* Y; ^/ I [$ x+ n- I
4 e- ?6 r! k p; k% Q;; set [customer] of customer myself
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3 |' b w$ K: |) u2 Q5 T. }" Rset [trade-record-one] of self item (([who] of customer) - 1)
! J5 k- W; D$ O: B. ~% O% P[trade-record-all]of self+ v9 y! O: R, i6 M3 y) _! x# S0 Y
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self/ M# M7 L( ` z0 S( K G" K
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set [trade-record-one] of customer item (([who] of self) - 1)( j6 o2 X- N$ H
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self5 \, F- X$ q5 H% x
4 t; ~( v8 E& M8 E$ {
set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
/ }; U8 _! V( p+ s& {8 i: }& U;;先求i对j的信任度
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if ([trust-ok] of self)
, P) w$ P, ^& @: t+ ^' j1 m;;根据i对j的信任度来决定是否与j进行交易[, a2 q$ q4 {5 Q* T3 \7 S ?% t. V
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[) J9 N( T' R5 ] d: A
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do-trade
* c2 i t; ?# V% A: w @+ m
) w& @& U7 |$ S. R. Kupdate-credibility-ijl
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1 C( `6 q$ O! oupdate-credibility-list
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V0 |' Q d5 [3 T8 Oupdate-global-reputation-list
4 ~3 w0 r! ?) Q
" [6 H6 |3 Q$ _7 @9 c5 ~poll-class5 u' `( k3 R* H( R6 f8 Z) e
1 o( T. J! Z- k3 eget-color" o* O& N) k$ w7 O w0 k
( T+ t8 Y' t5 P
]]& Q, [. Z, O+ J6 A% Q
6 x3 n8 a W3 a& M+ p2 l- Y1 Y
;;如果所得的信任度满足条件,则进行交易) o+ W+ o+ B* z# ]3 s
' k; [5 m# m2 ^. \ {[
2 W& q5 r5 s* y, m3 `) }7 [7 ?$ V
# u% _- A1 v5 G& k, F; e6 crt random 3609 K7 X3 l: B# ]' S9 H
1 h5 ~1 L* j- D5 b+ xfd 1! P# R, I2 Z/ } Y# Q; v S
: F, `3 Z7 h5 v( z
]
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to do-trust
7 M4 Q! d' Y) q- }& qset trust-ok False
3 d. u% O5 x* ~* L3 I' T* G' L) |
3 j& X" ~& R: j3 i- ^! Q$ P3 m
let max-trade-times 0, i) F3 n0 u% y; H7 L* i, }
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]$ J. ^* R- A% A8 j' G7 N
let max-trade-money 0/ \, m) t) g( W& v5 U& ]
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
( _3 L" q6 l0 [, |1 Zlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))* ^: [4 T0 N" \
( r: [& H: T8 {/ j) _* x% j/ C, T$ R3 F7 O# r) A
get-global-proportion
0 [$ T1 ~5 d* W- r! q+ K- wlet trust-value6 }% v9 y( K; k6 C' K1 `
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)& P4 s; n- [3 ?4 ?4 e& p/ n
if(trust-value > trade-trust-value)
$ z; S$ n& |1 k ]1 R# N3 E[set trust-ok true]
. I! S7 I, Y" d9 rend
# J& h2 M% s# C; V, i5 o
/ o/ n3 g9 f0 J& ?, @to get-global-proportion
, M, E _5 u- t9 A, }/ `- f6 kifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
. ^: }/ X7 ~! o[set global-proportion 0]: Y% k9 X5 ]9 [5 r: }
[let i 0
" b) Y' n- o0 h; Olet sum-money 0
' j; ~6 a. C3 r- Q, Hwhile[ i < people]
" p( }8 Y! h6 |0 N[
$ ~# h% S6 ~% C7 A; J/ bif( length (item i; q0 k7 n |( W, J9 y# t
[trade-record-all] of customer) > 3 )
1 \* p$ Q. e# N[$ |/ R; {) l9 c5 G- A
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
' k! c8 `# b4 C9 s8 s]
" Q1 h4 t$ l1 V4 o]
# o6 l5 o. L; f( q# y9 Q' T+ clet j 0
# s' Y* Q6 O4 B D7 J4 w1 olet note 0* h2 R5 q: a/ |! S
while[ j < people]8 L; O1 ?9 o0 J C. R
[: E8 P$ b& Q: P3 k# c; O% T% J5 G
if( length (item i! K3 I" d( J6 ~
[trade-record-all] of customer) > 3 )* [& n& J {0 M
[& v4 b1 E; g7 G, `0 r
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)0 B# K, Z8 h& q, E6 o0 }
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 J$ z: n! |! c% z; O* f1 Q[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]: U4 l6 s8 D! ~6 J) d
]% C* w- Y* h' u$ @; L, S8 X) N
]
* q7 |9 P, N% }/ S& Mset global-proportion note+ _! }5 w; a) s8 R
]
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to do-trade% d2 p. ?2 b; Y* h0 x3 g
;;这个过程实际上是给双方作出评价的过程7 ^4 Q+ N1 f! a- W. |5 F
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价0 J, b v( F( ~8 k
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价' _( ~6 `2 ?/ O3 H' V
set trade-record-current lput(timer) trade-record-current' [+ i/ k j' J9 p0 I
;;评价时间: f* p- ]* A- z0 y( ]% i% C0 i
ask myself [( H+ ~* @9 [1 v- \4 h6 A
update-local-reputation
( }' n" B: u& k9 b/ R& ]! _; w3 sset trade-record-current lput([local-reputation] of myself) trade-record-current3 \4 }, H8 _0 c# T0 E+ D+ a
]
; m/ v. `6 B! Y O8 f8 E) e1 {set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 P; T3 k! {9 R' H0 Q; o4 b/ ?;;将此次交易的记录加入到trade-record-one中' O8 h; w- F8 t2 ^
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
1 F7 y% C& C; u' V8 Plet note (item 2 trade-record-current ) g- u3 A5 i7 _9 d* ~( D5 C
set trade-record-current2 U+ p9 Y u; s. t
(replace-item 2 trade-record-current (item 3 trade-record-current))
1 N" j7 o9 |* |$ v/ s) S# xset trade-record-current
$ `1 e2 N+ y- U4 ?6 v4 g+ p(replace-item 3 trade-record-current note)
+ J$ B/ C0 h: I8 R8 ~( C
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( R& |5 x: R1 N7 E/ `8 uask customer [
5 M/ N0 W( w+ ^( e' ~update-local-reputation
) F9 [; x. Y+ Y+ |# gset trade-record-current9 _/ f" X( C% a8 ~# j( q7 _
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + e) L* C( Q1 G( S0 A4 C5 q
]" w' F6 i) R% u
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 W7 V: x) {) H" D1 F
; y$ ]) R& B3 ~+ X/ z+ J. s4 tset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))6 l) k; N& o) d! `
;;将此次交易的记录加入到customer的trade-record-all中
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to update-local-reputation
: n9 w' }' b: f4 G6 j, Vset [trade-record-one-len] of myself length [trade-record-one] of myself2 W" Y; Q& D; e: i. [: V; @$ }
% \" \( h9 u/ M ^
) q3 p- p2 c( @( M5 H( X) v;;if [trade-record-one-len] of myself > 3 6 K+ V! j) M5 O; c& C6 x3 q' o
update-neighbor-total, j% }* n! D' x8 F- S Q* @( ?* y
;;更新邻居节点的数目,在此进行/ q5 B- q9 M5 ]7 U
let i 3
" w) U0 g- }5 Y0 q4 W% qlet sum-time 0
& J1 ~ i) p( T& ~% E6 _( }while[i < [trade-record-one-len] of myself]
+ [: P1 [7 Z1 A9 P- r[
$ R$ v- X" S2 ~# i# u. t# O0 bset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
2 f m9 f$ X8 v$ c) oset i5 V7 B; T: ?, L, v/ H
( i + 1)
6 F8 p* ?9 g/ J]! \0 B0 l" _& {
let j 3; \* y( c" ~6 s+ ]* D2 p
let sum-money 0
, n' t( I$ J8 p7 r9 o6 ?! Q" t4 owhile[j < [trade-record-one-len] of myself]2 K* b9 m* c/ h9 R0 P- ]
[
$ R6 q$ l+ z, i* T9 m5 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)$ E& m* ~2 G+ t. _
set j
7 Z- R$ N4 S: d( j + 1)" X. A* h( V2 j( {
]8 h: ]2 I. s0 h/ q6 k# V* o
let k 3
/ b( @! I9 d, p4 |' Z8 O/ plet power 0
' c* ?5 D$ t4 Ylet local 0
% I* ]- ?& M) Y/ |6 Pwhile [k <[trade-record-one-len] of myself]
4 ~* P3 u0 C D1 S. Y4 a[2 ]/ }, J/ v( r, P) {; P1 t2 j
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) ( K W: F% f2 X
set k (k + 1): a2 I" X' d" f2 q5 B0 D2 }% q; j
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set [local-reputation] of myself (local)0 w8 _/ I; A) A# ?
end7 e1 [7 Z& y2 H. W/ O
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to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]6 v, @3 K4 s, G/ L. l% T' ^! { `
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7 w& [9 y0 o/ wend
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, k- c7 }) X7 `. w `5 _% o0 Gto update-credibility-ijl , Q$ j8 ^! P0 B1 w
4 ~( I- n: f1 x3 X1 r+ R
;;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。. t) {# x' h4 a7 q
let l 0
6 S0 D6 B/ @6 D% M1 R! |while[ l < people ]5 M" Y0 m- H% _" ?$ e/ a3 {
;;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% w8 d! c/ v9 n' | f3 Z3 j: J2 S# f
[
0 U! V" w) R& h9 g5 X8 U6 K: m4 Rlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)& q4 g& \: o( l# ~
if (trade-record-one-j-l-len > 3)+ i7 {1 G( P( }7 L4 I
[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
7 ~) M2 m, F0 @* R2 G5 {let i 3
& G; a- g2 L; I! K0 Slet sum-time 0! R. g* V2 @4 s, N- A$ k2 U0 z
while[i < trade-record-one-len]7 }2 K. g6 o& E6 n
[
1 x8 x% K* x) k1 z% iset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
! a9 f( E6 b; I1 ]set i
$ b& e4 X4 ~' X/ d$ a, B% o7 X3 W( i + 1)
8 E1 ?& r; z! j5 x7 ]' C/ Y; |]
' a, d- k) b8 k. wlet credibility-i-j-l 0% O2 n# H" Q7 V8 K B' J+ t, X
;;i评价(j对jl的评价)! u: l3 q- h" ~6 A: K- ^2 @
let j 3
" \# D8 I1 Z' _* olet k 45 ], Z* V; G: w; P6 D( z% g& t
while[j < trade-record-one-len]
& X$ O& h, H* `[% u4 H1 [. k/ `- n8 O: |8 P
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
# [5 p- M4 H1 _: @% xset 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)
! i: S% ^2 R9 Iset j" b' `& O' l# h
( j + 1)/ f# E, Y0 P# I0 c$ l
]5 B& d- U' v6 w2 H
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 ))8 J. l% _: c1 s. J; z# R
6 Z5 [4 e- ]7 @5 Y' ?, v, g6 U: [' Z
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))9 a: v! ~; F3 d2 z* W; i
;;及时更新i对l的评价质量的评价
6 W" s6 i, }/ e9 p9 P& fset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
0 F; G2 j1 c6 h& I8 l7 iset l (l + 1)
4 t& N0 H1 T5 T! q! S]
+ Q& \- S ~) b9 Aend
( C7 M- @; \& p! Z3 E. x6 _) M7 q5 ]2 {" p8 N! P
to update-credibility-list; ]& o4 v9 L' A* k L
let i 0
' k9 H5 u) N" }$ u6 Dwhile[i < people]/ v1 l0 H* @' D+ o7 H
[
: b/ _/ n3 {" ^+ M8 \6 Xlet j 0
. }) U. s* r3 O$ v; h1 clet note 0. `* c! y S$ w/ D$ ]$ r
let k 0
9 `( {, \4 f2 @$ t1 \;;计作出过评价的邻居节点的数目5 t% B: ?# U9 G: K* N2 H5 ?
while[j < people]
3 ^. s: J8 w7 |( k. M, _[3 {: t! v& a3 b
if (item j( [credibility] of turtle (i + 1)) != -1)/ L$ T5 J, i% }. Q
;;判断是否给本turtle的评价质量做出过评价的节点
1 P( P0 w f3 e# m/ C) g+ ~[set note (note + item j ([credibility]of turtle (i + 1)))
3 @2 `% O0 P. ~3 k+ L8 s) b) N R/ g;;*(exp (-(people - 2)))/(people - 2))]
) n! C7 ^/ H W% C- @ Cset k (k + 1)7 i. G# D- t: w' w3 V% p) o6 S
]% j) J: |8 p4 S% p7 B8 y
set j (j + 1)& u b) K6 @+ B( w5 R! l
]
2 `& @, r$ n8 B7 y8 N! g! F& }1 ]set note (note *(exp (- (1 / k)))/ k): O8 X Y" G0 v9 h& m( `& S
set credibility-list (replace-item i credibility-list note)# L7 S$ \1 N5 O. S
set i (i + 1)! c( W& `0 ]# a5 L, |# Z
]) a4 f8 n2 X) T5 R! R
end
8 n" Z' B( ?& D# P5 Y
+ m* j! I' V2 b. X p, E3 M& |to update-global-reputation-list9 T& c" q! f. V
let j 0
$ M, y% I* d0 Z0 y2 s3 z# j& M4 nwhile[j < people]: @8 j: C; P3 X9 K0 x9 D) B% i4 o
[/ C7 R, j# V" P J O7 A0 l. E
let new 0
/ `% P& X& A6 Q* W2 M;;暂存新的一个全局声誉# T6 f! u6 h7 G5 {
let i 00 X* ]: i: E# x, f8 E: p* w& Y6 [
let sum-money 0
3 M+ e7 q) l& ~6 ~! o. Wlet credibility-money 0
6 Y3 G% a+ i% m+ I+ d* Y% [ Qwhile [i < people]
9 L' P% N, I: H' S) n' S[
4 {6 @- Z+ o8 o; Q: l- |9 p- Eset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
( _3 e' @4 L+ P9 O( mset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))% a/ T9 m" u+ [% a
set i (i + 1)9 v' W, q) ~5 Q' b1 o& ]1 M
]3 m( y! L1 n/ z9 S& q5 ^
let k 0. C- g% \ f4 M" N$ O
let new1 0( d; }+ G; M& K5 m& z9 e
while [k < people]
. K/ u' H5 ~5 A+ N( O8 k% }[8 B, d, {+ r/ y2 ?, I
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)
# o" D8 K+ M' N3 Xset k (k + 1)3 ?! h( V `: h) k2 r
]! m; y: o( o* K! L6 K, h l
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
% R7 P# D8 ] P/ ?+ v% r/ eset global-reputation-list (replace-item j global-reputation-list new)' J: w4 U9 |1 Q1 z1 O3 \6 d4 M
set j (j + 1)2 m, a) ]( e$ d% H( {. X% ]% S
]( y; y" k9 D8 C& o+ v' I8 ^
end' i8 D1 b' R/ u$ J) Q( O
. E" @; x$ A5 l9 K# q' W
& H# ]0 p/ w. a b
2 d+ ?* |& y3 W, b: V
to get-color9 K' c, Q; P6 W" f) z
( O3 h% a5 h# W0 m T; {4 R
set color blue. i. m' s! G: o$ q: l" A
end5 z/ ^# a' W6 g
# ^' m+ k$ r o8 eto poll-class. r0 B+ j: ]! [$ G; S. }, A5 B7 {
end$ f0 L, ]) l. \6 i
% ]4 ^' x/ @; L( Z0 g0 Q( nto setup-plot19 J4 Y, r7 F% F& ]4 o: Q
7 w' J! j$ j2 S6 nset-current-plot "Trends-of-Local-reputation"
$ n( Q4 x A& s' C4 B% h& \) M! R4 S. k+ W6 c, Q- y; Y
set-plot-x-range 0 xmax
* E: P" K1 |- |
& w6 _) e' y; m1 H% i5 J) I# c3 Lset-plot-y-range 0.0 ymax
2 }% s9 n- C; ^end- \/ p" }' X8 W0 D% |6 {* @3 b) t$ ]) }
- \; v( v) Q7 b
to setup-plot2( S" M# x- R: A; l
2 R) R* t! ^8 {# f8 }) |% r
set-current-plot "Trends-of-global-reputation"* Z' v+ Z5 V& Z' _8 y! m
* h1 T% h, Z: ?0 N( Hset-plot-x-range 0 xmax" `: B4 F8 X" W: \# ?
/ H! K) z+ |6 j2 k
set-plot-y-range 0.0 ymax, l' u" j8 V# S7 T; ~/ O9 x& d
end* T* G! c& {8 k: R; ~. l$ O0 s
8 A/ _8 |' I9 U6 B2 a7 M! p' c
to setup-plot3
1 e7 `# e, E( i0 G
& Q7 x# \: C2 k, f! b8 M) Iset-current-plot "Trends-of-credibility"* z- l) P7 F$ y2 I0 ? a
" e: m2 Q: [+ q) @( qset-plot-x-range 0 xmax$ S$ Y0 X) M9 {3 m9 P
: G( p4 F C) K
set-plot-y-range 0.0 ymax
4 s' \1 h; K: C% M5 g C; Qend
6 d6 j; l: v6 V! n* }) _8 I- ]3 M) v) s f1 Y
to do-plots
. @6 J+ ?. ~9 R" w" \" Wset-current-plot "Trends-of-Local-reputation"
1 W+ f! O8 Z" B- E5 A, M3 A( |; Cset-current-plot-pen "Honest service"
2 h6 z6 x% K2 r4 o* lend
% R+ v% r+ s5 S5 b9 Z( j
F* |$ M ] F) z[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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