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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
% F+ ~( u) c7 s3 [& n' ]globals[
$ J& A& D" {3 a' p1 uxmax
. z! S, I [0 \: |& Y* Yymax" I) D) N5 K% k6 Q
global-reputation-list
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3 b, J7 m/ Q4 L& v2 T4 K% V3 f;;每一个turtle的全局声誉都存在此LIST中
1 ]& R- c( r" x: u/ Z G4 ^0 Vcredibility-list- I& X2 D% y! c
;;每一个turtle的评价可信度8 w _/ ]" ~" r7 Z: Z) m
honest-service
p, U7 o& P8 b. {, Q- O2 q* N7 z( Tunhonest-service
* A) O4 }/ a- Y6 zoscillation
9 E0 K- ^7 @$ _, b) `' E5 krand-dynamic; F* U: `; ] t' ]! L B6 Q5 [
]8 v9 d3 K- |1 ^
) T) E \+ V' Oturtles-own[! j0 R, R. i1 B7 l/ |* ~
trade-record-all
7 H2 Y- N5 I0 c+ ]/ r7 ^;;a list of lists,由trade-record-one组成) }6 b9 J" m }
trade-record-one
# m) j% v# |( i8 V& n;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录 l' B# \0 {8 `$ p
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;;[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]]- g( Y( P" r, 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]
! s" _. y- u& W4 C) dcredibility-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
% W, s2 B* U7 R* S+ j7 h: yneighbor-total
, J# }9 Z. ]/ \$ b# \; q;;记录该turtle的邻居节点的数目& A# W& t5 c- k8 Z1 u
trade-time
* Z& W. D$ g, g$ W \0 \! } z;;当前发生交易的turtle的交易时间- \+ S4 o9 C/ A2 q. M' N0 ?' @
appraise-give
: R3 Y; ]6 X. J6 ?2 i;;当前发生交易时给出的评价: R J0 c8 H5 x7 }' v; P
appraise-receive
3 h A7 f U4 X;;当前发生交易时收到的评价
! F+ K9 V$ i) I0 Eappraise-time+ O/ B8 [& V$ V: P
;;当前发生交易时的评价时间& j. o6 ^% \0 h
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
- Q, [, M" q: p% ftrade-times-total
F! c3 Z4 Y# D! {( e;;与当前turtle的交易总次数 [/ U0 Y: W" G) I
trade-money-total" K- U" x' x7 V9 @2 n' t' L" m* j' P1 m
;;与当前turtle的交易总金额
4 U$ O% t) V/ t5 o6 a7 X& xlocal-reputation
( i% }% q( F; v1 D2 p# _global-reputation3 a6 _( Z2 F3 e9 U
credibility! z1 t9 P! `& A+ @4 t& B6 D
;;评价可信度,每次交易后都需要更新
1 A, e! i$ E9 x, b; y7 Mcredibility-all1 x0 `) v& A$ b- G2 T
;;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
- ^: r9 s& d5 v2 ocredibility-one
; c0 s& }( f, V }4 V; 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
! k0 s: ]' h( ?: W2 |7 J: jglobal-proportion5 S# A% X9 Q* q( E9 B
customer
3 e2 n) S9 a: x! qcustomer-no2 h6 ^% f0 t( W; D* ^- ~# m
trust-ok
& M o6 G) A$ P4 ?& ], m: W9 q3 itrade-record-one-len;;trade-record-one的长度
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;;setup procedure
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to setup
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ca7 J4 O1 y7 j' i' i5 D6 |$ g7 ~4 I
$ u; Z3 q' w, g' {5 t4 w) N/ p4 yinitialize-settings
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3 G9 j3 x9 Z+ v; V4 Ecrt people [setup-turtles]
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reset-timer3 i* t9 P% H' @7 P2 t9 @3 ? e( Z$ P
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poll-class
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setup-plots1 Y: x1 j/ t. W; j
4 f3 h+ @7 ~) R' l4 s
do-plots
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& E4 @% M O3 w2 e, l7 K$ r6 r
to initialize-settings
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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 0
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# _) n, i$ o3 [. T4 i1 o8 Kset unhonest-service 0
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set oscillation 02 I/ g" w5 F5 e0 [
! N: }& D8 q: p2 C) l7 \set rand-dynamic 06 X; z( t$ e7 O' z8 g6 u$ g
end8 p- k& \; E3 N2 K& }7 c& f
% {0 ]) s' @7 d6 e7 u1 N2 L1 k
to setup-turtles
( U% ?+ F; ~5 i9 Q5 Lset shape "person"
% l, i+ E8 B) l8 @3 Y; V' V; m* p; l* Zsetxy random-xcor random-ycor' E1 I) _8 o! r6 B$ D" @! ^; r
set trade-record-one []. u) U/ f1 m! O8 T
& @+ }7 k8 Q4 n b& @: X5 Y9 {
set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []
" y& \; o x* ^' j/ ?set credibility-receive []% S g; \6 r: P3 D/ x
set local-reputation 0.5
* w& y p8 L, g+ A, l5 E( V( l+ Sset neighbor-total 03 K% }1 p n( E$ X5 A# `7 x
set trade-times-total 0
L+ y8 T" o, d" s! _' Oset trade-money-total 0
4 k+ E: x2 B+ x2 s. U$ ?set customer nobody3 u% E, b9 l* e- x; {1 s l
set credibility-all n-values people [creat-credibility]% o- C' B7 L6 w$ e% K
set credibility n-values people [-1]
/ m3 t( X) h" x J2 h. @1 Yget-color- }+ R# [0 ]+ i. m! [
$ X G9 g4 G" a9 P+ S4 N1 J8 f$ nend+ M% v# P) d4 a+ h. P
0 }& K) {5 s4 [, ~- yto-report creat-credibility
# ~( C. ^3 M4 L% f$ I# U3 ]! [report n-values people [0.5]* u8 \6 l% x& F: E; ?9 r/ L
end
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2 G5 J" _' Y9 S& X" hto setup-plots
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) t, a2 I7 q6 d. N# W) |" ]set xmax 30
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set ymax 1.0
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clear-all-plots5 o: M7 Q5 L' e% _3 o
. t+ N* @- V! t: xsetup-plot1
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setup-plot2
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setup-plot31 N6 S1 r7 p# Y$ _ I: I, X
end
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;;run time procedures
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! y7 C% ^% h* i- R { Vto go
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ask turtles [do-business]
9 u" s5 T$ b$ W6 R1 oend9 @6 k, V5 P7 {8 o
$ H/ @4 N5 @1 i3 _) Lto do-business
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2 E9 w/ K0 n* I- Y) g. e2 s% @! D/ [' B9 m6 a
rt random 360, `$ J# `: L( ^- t
t' L1 N8 e: ~. U
fd 10 h& Y4 K- v, p' H; O
) o* r) s7 r- y B% s5 A R
ifelse(other turtles-here != nobody)[
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; R! S9 k: M+ d& A! `set customer one-of other turtles-here! W- [8 Z* f1 W1 n
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;; set [customer] of customer myself- N3 S g! `7 ^1 G+ s$ ~
% v0 f9 l* v4 b0 N* P; pset [trade-record-one] of self item (([who] of customer) - 1)
- B( Q, J, S0 ]+ Q J: n( R$ p[trade-record-all]of self' J6 c: x7 t$ u) `' G c9 k' Z
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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/ ~! u K5 ~3 Z" e( hset [trade-record-one] of customer item (([who] of self) - 1)( a) U: l8 ^, X l. q' v7 y
[trade-record-all]of customer. ^: v7 ? ?. R
/ M* H) r: C4 N( o$ K# k) Cset [trade-record-one-len] of self length [trade-record-one] of self
U* U1 D' O7 ]2 k* f: c" J+ f
0 a8 X$ L4 O U! `3 \( O* Zset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
$ n5 q4 X# Y* G! a;;先求i对j的信任度
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- d7 A- b: J! I6 [; jif ([trust-ok] of self)
0 \# c1 I- H* a3 A8 c8 }8 h;;根据i对j的信任度来决定是否与j进行交易[
/ } l5 q3 y/ ?ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 j* b. p/ i$ H
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[: X/ T! R- q6 j$ D8 C
& w0 o7 n+ H- O" p3 hdo-trade/ H- f8 I- _. C
7 E4 p3 a' b M5 p+ t8 [; l% eupdate-credibility-ijl5 X5 }! `1 E- g) I& ?. D( [/ B
0 s/ ]. w; S! F3 [% k$ V5 A) _
update-credibility-list# k* I- H2 ~( G, a/ X
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+ E1 D2 `% M. q9 c l! e
update-global-reputation-list
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8 H' g: ]/ o4 u5 W) F+ {poll-class
% Q) ~6 z' B; q$ K$ S' H
6 m# y6 {5 T) R3 ?* Xget-color$ L, G" C8 }) q( h! n
5 E- q6 M; Q) |9 I6 w]]/ U. r3 X& f. s
. A' k2 B0 M) _0 E
;;如果所得的信任度满足条件,则进行交易
+ {$ Y5 W, ~+ Z( X1 N; }4 ]$ D* S& Q9 O$ Q& I$ \
[
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rt random 360
4 k. `5 Q, V9 b: X) ]% i( {$ U# I2 g0 H& M* \. N( O# Q6 T
fd 1& l$ G3 J, Y/ _% y8 B! K; \7 E
1 |* @6 o# V9 Q
]$ f4 t% }9 L" e& [- K( A1 Z8 K
2 h! p9 D, m9 a8 E9 E
end
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$ V: n, r C' g4 L# g& Vto do-trust
) z! Q7 `2 S9 V& x' c& nset trust-ok False
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let max-trade-times 0
0 B p; p2 R1 g% P( r, mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]$ [$ [7 Q, x& r& A
let max-trade-money 0
& A" R4 c, G3 X4 S5 F# g! C" Aforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
; ^! n- |, _/ M/ @+ m5 k5 blet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))* \! \( S' ]$ Z
n, }4 l& E& o! B* S5 g
$ J. Z0 \" _* v5 ~get-global-proportion
; B$ B$ J; h/ x' glet trust-value& k$ H8 Y& A2 S+ _2 H V4 `* Y
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)2 s8 V5 f1 ]" K! W' t
if(trust-value > trade-trust-value)* C' @& J/ ~3 m0 ~
[set trust-ok true]
6 i8 K* p* f8 {+ c1 ^9 vend- C" A* T+ o) p/ Q! [& n9 O
7 T( _4 x2 V. @ m9 V
to get-global-proportion; r! {1 x3 E0 p
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
! F: n9 l6 s7 j2 j" e( T, z) c[set global-proportion 0]- U% B0 }: g0 H$ k5 d3 P* ~% A, K( m
[let i 0
$ ]- Y) p4 ^# h$ S; K& l, {let sum-money 0
& ]1 }* H( `3 E0 N& |7 z5 @" D) e/ P+ Hwhile[ i < people]
: r8 u+ I6 |$ E( X; j5 E( d4 n[( }3 b2 Q1 }5 Q! G+ P! _2 j. g( i% e
if( length (item i3 v9 @+ U/ J, t8 w% n
[trade-record-all] of customer) > 3 )
3 I# {/ P& u L+ i1 e! }% E[
( N/ A# t0 e( M, {+ J) nset sum-money (sum-money + item 2(item i [trade-record-all] of myself)); l2 o3 p6 R+ H+ H
]
' m5 ^* B; G" ~ d0 E3 i7 D$ B]4 c' Y8 K' I0 |5 u* m9 R
let j 03 M/ G& t+ h$ q% ?
let note 0
/ k/ F/ ?9 l! cwhile[ j < people]
7 g( ~% R/ a6 d[" E. ]5 X- A) N3 t4 n
if( length (item i
0 f5 u7 P( C, e' g* m1 h9 f- |[trade-record-all] of customer) > 3 )% P0 `# T R. K, Q- S& T# Z. H
[
2 ~# D+ a4 U; c& J/ r O+ X! jifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
5 p% F5 i0 J- K) E8 b3 }[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]8 p# d' l2 M: ~8 _: d
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 n3 N! g6 P( E0 _
]
) ~/ ^0 P. i( l. X: p5 n]
7 h1 W4 x0 c. Z3 Z2 {9 E, v5 jset global-proportion note6 M6 U( @% V- y9 r) o) W
]
, W. m) M2 W* \end$ T4 }. i k9 M3 c `0 N
$ M1 u" h6 f, {# C- r2 J
to do-trade
- W7 F8 X R x2 W: k;;这个过程实际上是给双方作出评价的过程& j% o& Q" K% R- y P- m- ]
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价/ U r* N2 p) x" k6 ?# B3 c
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价2 m M7 A( m" |! \# L
set trade-record-current lput(timer) trade-record-current
* U+ E$ C0 ]) y" |- s: ^;;评价时间, a) ^- M( P; \' q9 |& N6 y7 v8 B1 O3 c
ask myself [! J( I6 z7 }' G
update-local-reputation
/ G; U C6 N/ H! ?# sset trade-record-current lput([local-reputation] of myself) trade-record-current
' u/ q2 d) ]) {% `, _$ t]5 j0 M& O5 x8 v8 F7 V( h9 C! N
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself8 W$ J: l/ e3 `2 r/ v
;;将此次交易的记录加入到trade-record-one中
7 ~9 s1 t% y% A9 W. Uset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
2 w- ?# s+ P6 E A& N. o. ]let note (item 2 trade-record-current )
. M& c6 `/ s" g) Gset trade-record-current6 E& c3 G i) C+ r9 Q
(replace-item 2 trade-record-current (item 3 trade-record-current))+ n! F, M/ S) o* y: R2 s
set trade-record-current' W+ P" K; m% ?9 i. Z/ {
(replace-item 3 trade-record-current note)( W, {7 l) X% G0 R% d# q
$ M' |. ]* E8 J7 L5 h
0 l. b d" w! M0 X1 k3 wask customer [
; W# G' f! w$ Hupdate-local-reputation$ T) {: p# K& i r* Z H, |
set trade-record-current
4 R* `' l7 p. v& g) O+ C" X(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 9 t' p7 T# o) ^1 p
]& ?( \$ e2 F* D! T
F% z$ X5 p3 t# C+ c: W8 G* l! u' ^7 n4 w& K
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
& {0 T) A5 n- B0 g
, q9 y/ I7 _" B- P) nset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
( Y' L0 G! k4 d: `- f- ];;将此次交易的记录加入到customer的trade-record-all中" U6 J1 W% W5 z' R9 J
end
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to update-local-reputation
8 w+ |! J3 T+ a- N( b' ^set [trade-record-one-len] of myself length [trade-record-one] of myself3 {0 q& K2 H/ Y+ l
7 T+ A' E9 z+ p% w
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;;if [trade-record-one-len] of myself > 3 # U' {7 H: }; o+ |2 L b% f
update-neighbor-total
# I' h% z+ N% h; {/ I0 t- \;;更新邻居节点的数目,在此进行! T3 X+ j) R$ H6 p% m
let i 32 j; d. b4 I a; ?2 T" F
let sum-time 0
4 A, f1 A) c- a+ q; swhile[i < [trade-record-one-len] of myself]
$ j G: P- `8 A% e5 Q3 ?( A/ c, j[
# k( ]) k9 ~# o6 O2 hset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% p$ p0 b5 @: tset i
* [: r* c6 b! n( i + 1)8 H* x2 f! ^" _* i( N
]
: @) z) o) c4 l% t* v% ilet j 3
" L% S5 G7 z; v" J' O7 Q$ F$ w3 t. xlet sum-money 0
/ o- Z( Q3 U' t0 n6 P" Dwhile[j < [trade-record-one-len] of myself]
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. n0 h+ g" Y" b& C# Vset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)! T' t! w) y2 _8 e O- k
set j- B' P$ C, }8 d/ U5 u$ u; u
( j + 1)6 p( j1 [. k3 R0 `
]
' ?' d3 G" o1 M1 Dlet k 31 A3 O' A# j9 @6 i% E) y5 ~$ v
let power 06 f( S9 L5 j( d3 T+ d# I
let local 0
; Z, d4 J5 A9 O/ a+ {% I8 ewhile [k <[trade-record-one-len] of myself], Y" j' s* T1 j( T
[/ F6 p8 D. \& I, z) x, f5 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) ' j# Z& {) u$ ^( r9 B
set k (k + 1)( r( e0 y: `, w4 F/ G. o
]
+ Z$ t' N- e1 o4 H" y$ @- iset [local-reputation] of myself (local)& W5 W1 x5 z) r0 H
end+ H0 |; B* i5 y# w
: z7 t) y9 F4 hto update-neighbor-total
0 B" R/ z6 A6 `
* L& e$ _: {0 w6 bif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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/ n$ P! f* u- X: ^
end
, c9 l. J. C8 y6 C( Y8 b0 V1 O7 R% x7 G, [7 I8 l2 s; \, l
to update-credibility-ijl 8 e/ i' P0 W5 Z! M/ Q+ @
6 R& p* [9 h- u6 C/ p* z. 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。) E6 c; @1 o! Q+ W% g
let l 0( f( K! u6 w' G7 y8 \
while[ l < people ]: r5 R" a1 e6 w5 p0 I# x
;;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
% O; X* T* Q( B; K/ [! G+ l$ S[+ H8 N+ Z3 r |' z7 V7 y+ j
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)+ }( \& r- z' z, d1 o( K
if (trade-record-one-j-l-len > 3)
$ Z/ z9 S, @% `; E9 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
9 S" N6 _ ]" olet i 36 y9 [1 O3 F& @/ J+ y6 n7 I
let sum-time 0
1 j, K1 T7 y& {while[i < trade-record-one-len]
* K! l: o7 O( \( i! p; [% w* ][, V& e" n X, R7 q5 s6 ]* e3 e& J: _
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 [* F1 B7 R# f4 G
set i
( I7 |, J/ J4 j1 Z" Z8 Z" i6 _" m/ }( i + 1)/ U5 | J* Z z1 Z8 O7 S5 d
]
8 Z& W' p/ N8 Dlet credibility-i-j-l 0
6 H( H- V3 \" n# Z& m0 X" `# f0 U0 ]" C;;i评价(j对jl的评价); ~0 A' F5 b2 C8 N
let j 3
; H; q& j1 q; C( Elet k 4
* O# G; T1 Y# H( T; e9 |while[j < trade-record-one-len]
J0 t) j! _1 r9 }[
( q. M% D5 l$ X+ F6 `$ l6 cwhile [((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: l5 \2 H; f: e8 w7 W# k3 ?9 s3 Y
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)
u6 O. I3 ?* m$ Lset j
# i- A: |0 u+ @' ]. b) q( j + 1)
) f6 z1 y6 n2 b) I4 f- F) p]
3 }7 S/ n" a/ s" U" u' Eset [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 ?9 {# x- @& `! w1 e/ U- m) @. F
& t% ?4 t6 G( y# c3 V' z- C1 }) v; n) {* ]" D m! N+ _
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ j* x( {* A7 s( g8 D;;及时更新i对l的评价质量的评价
6 g! L- x+ m9 n0 F! v0 ^set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' k: `& Z3 g4 Z" I3 e4 aset l (l + 1)" i% R% S% ?# ^
]' K! F/ D7 z5 C# Y4 _
end) N5 u3 {& d8 h& b. k8 B
( j) D" P) I2 v6 D7 P
to update-credibility-list
, N) h. r6 _ plet i 0% ^+ R$ V; H2 w5 B0 P
while[i < people], k3 R3 F+ A9 z$ q
[$ ^; S4 Y) m1 N8 ?
let j 0
4 @- r/ X1 X+ b2 ^+ c0 \6 H3 Rlet note 0
* W+ g! u: ~% X$ J/ llet k 0
/ V: t4 ~$ X4 |4 @;;计作出过评价的邻居节点的数目+ v8 H2 x" A2 A n: E0 `
while[j < people]6 O3 V! h7 P( N3 ~, L( ?; R! d
[
+ j; F$ c, c. Z2 tif (item j( [credibility] of turtle (i + 1)) != -1)
, @& L4 F- r' l7 H' G/ T;;判断是否给本turtle的评价质量做出过评价的节点! S; [3 [2 x& I* \/ U1 a$ {
[set note (note + item j ([credibility]of turtle (i + 1)))
8 G" X& E" q, K7 J' p% [;;*(exp (-(people - 2)))/(people - 2))]
}. k- h4 ~. l- x/ Yset k (k + 1)
' F2 s( S, V7 ]% a+ C]9 j5 `& W" k8 |0 r: ]
set j (j + 1)5 b# r! s% R. B1 K! C" ~( d; g
]
) v) |0 W0 v' Y. t+ [2 }; V; g! @set note (note *(exp (- (1 / k)))/ k)
. @! ]) D- q* H* l3 R% r- p- ?0 @set credibility-list (replace-item i credibility-list note)5 }3 K" F P* t' u2 M. _; i% w
set i (i + 1)
: ~7 \+ L1 {( L7 J1 g2 b]
7 }3 j5 x, Q" K4 T0 o4 ?8 i) Aend
; C5 p! }# [5 X+ U2 W$ d$ @
# }% L5 e3 g$ @; L3 i) xto update-global-reputation-list
8 X; \# t; ^2 W Y$ _0 F/ tlet j 05 |9 W2 l6 f- y
while[j < people]5 e3 p5 T* Q- h, ?& R
[4 h+ u2 l/ G* T/ b9 }' P, ]1 e0 M
let new 0
* q: p T- H* J% c;;暂存新的一个全局声誉0 d7 A) R/ @# w- J# U
let i 0" ]/ P& a0 q' |0 H( ^& E( p9 a% X' U
let sum-money 0
- }- H6 Y7 }. a1 f# K. R0 Xlet credibility-money 0 u1 L$ N# N+ T3 P( B: E
while [i < people]- T, Q. y! y+ |1 e( T% @( [! Q
[! m- _% o0 p& i2 o: ~6 i8 y
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 j2 E3 Y o2 J' X% p
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- `/ q: l/ @2 v T) H, L8 ?* ]1 `
set i (i + 1)) S% L! B. T8 [; Q
]
) m1 T0 S- r/ \8 q+ P' b$ {let k 0
" v" a. r( s4 ^5 d- ilet new1 0; J1 t* M6 e+ ~2 ]3 N' {, B
while [k < people]
6 z" \+ [9 r1 i' U[
: F' W) [( |' z& F) Nset 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)7 n1 X2 z& m3 V2 w$ o
set k (k + 1)
1 M3 |6 P% ` Q' a# |( r]) k, E. g, q/ D3 Q& s! m/ M: U s# ~
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) - [# R2 e* R( Y- _
set global-reputation-list (replace-item j global-reputation-list new)
% z+ i$ k- e! ~- E8 }8 O* [ U) Cset j (j + 1)5 _8 J2 u" H: \0 A! D% f
]
: K i: A" L: t8 n% X: d2 L" B7 Eend6 e0 a& O# j, y1 {( o- j
g! p! O! N. }% b7 w7 L6 y1 x1 Z
0 |: W, Y: U( M, j( C8 g) l" S+ q e# c' Y' p
to get-color- Z1 U! a. f' j" U
/ m2 V1 v/ b8 j8 J9 t
set color blue" U+ A) `) v3 B, g
end
( C0 S9 @6 p4 `% J3 ?% k: v$ p- D9 j. R6 }8 B3 C& e
to poll-class
5 y# {. Y/ w# u8 ^/ Xend8 ]8 Z# t5 |3 g. r
; y Z/ g; c" t) r: V# a c0 M
to setup-plot1$ l( D3 ]- [# y5 x
/ r6 n! l$ ]6 V0 W' o. e5 I' zset-current-plot "Trends-of-Local-reputation"
1 J2 n! i& P' ?# Q1 f' ~; e
% J- n1 f+ \9 A N4 u; bset-plot-x-range 0 xmax( o7 j& j( w9 z3 \* ]
: R! s. z N- a6 f# m
set-plot-y-range 0.0 ymax
9 N4 ^; @( N; A: [end
7 X: Z6 B) g0 U3 I
{2 v5 j5 S& Ito setup-plot2
" j( S# [) M# q) ?8 F2 a* `
5 ?% l8 z R9 N$ B- Wset-current-plot "Trends-of-global-reputation"& P u6 z% E# [6 p5 c- n
. U+ C9 ?+ {4 v; m: O
set-plot-x-range 0 xmax* O0 b4 @" g( O
- K. k$ @, U3 b$ j: n* |7 D
set-plot-y-range 0.0 ymax
% B3 Z& C7 u" ^2 d/ {7 B2 Z. yend4 A( Z I4 q! N. A0 k
+ {+ ^; d; Y! ito setup-plot32 y" ]# q1 W- U" B3 h+ |' @7 q
( K3 U$ I8 s( V: T N, x6 j5 c
set-current-plot "Trends-of-credibility"
6 m/ P$ u* H% t& ?# g0 @* ~, |
# Y8 O- ]5 ]0 C- I( ~% x1 Jset-plot-x-range 0 xmax1 p! M; `( v3 {
! t( D: }% A9 V
set-plot-y-range 0.0 ymax6 t! g; j. x: m; n4 I8 A
end
6 o4 H) \, @. n- ]$ u8 }! [7 R9 f! F4 w7 l
to do-plots
- S! A- X5 e6 s2 xset-current-plot "Trends-of-Local-reputation"/ R9 O" m$ g! \( P1 L
set-current-plot-pen "Honest service"( C" Q4 g9 O! v; j# y- x1 M& h3 w' y
end
6 }# J, Q! G( k- o0 J1 \3 h4 F2 E D+ E# B$ F/ s
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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