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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
+ Y; E7 z, p1 ` D0 ?' x8 ^2 |globals[- L# L3 G x6 {8 V
xmax
' r" p6 M0 t% }4 c% cymax9 Y+ a3 j! X. A: F; b% F: m( T
global-reputation-list6 I3 i6 h3 w0 R; L9 o/ n* P
5 b8 m% l# a) I8 \! @2 I
;;每一个turtle的全局声誉都存在此LIST中
4 Q# P, E6 \& [5 ?, V0 ?credibility-list
5 d) Y" A" `7 z. q, \" s$ Z;;每一个turtle的评价可信度
, c9 P/ {- z. C( s' Y: Fhonest-service
" \: B% X; s% ^6 \; B8 ?2 iunhonest-service+ ^2 |( P p5 r) z; H
oscillation5 F; Y, o/ j, x0 J: t
rand-dynamic
5 X; j; ^* e- G' C) R0 a9 I]
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0 ?, j( P+ v f1 n. P& i' I# z8 |turtles-own[
% e8 H; l. F5 A4 O! c$ c, Ctrade-record-all+ r0 P1 G' p2 V7 U$ L' l: }2 |& b
;;a list of lists,由trade-record-one组成9 @, j: S6 c* V( `
trade-record-one) M, E- y' y F8 a2 \/ V, f8 ?
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录# G5 J9 X$ `1 ~: l
* ]% q6 w* u U( O' m;;[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]]
/ q7 m( d8 l B8 M* {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 o% X3 S& W* R0 j" hcredibility-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
6 P! S- |$ q( i2 y9 l# @' hneighbor-total' _! [4 t, O1 W. |
;;记录该turtle的邻居节点的数目
% N: W, y, z( ttrade-time- {5 T. ]: K: U+ ~8 W
;;当前发生交易的turtle的交易时间8 X4 v% M( F E+ b3 e& p" Z. V
appraise-give
& G) ]3 m5 G! F# D1 K% n) y: V;;当前发生交易时给出的评价% X" ~, d: k! S- J* u# y# ]6 e
appraise-receive
. Z/ z9 i% e2 w0 b" };;当前发生交易时收到的评价3 s; T3 O0 Q h2 ]
appraise-time
# ~% C* T4 W( n2 L5 p# `- w;;当前发生交易时的评价时间
3 Q7 s: M, I+ k- w' L- z# b }local-reputation-now;;此次交易后相对于对方turtle的局部声誉$ E- }! d$ m7 ?8 i
trade-times-total
' _. `4 Q( ?0 V' S# `5 ~' W;;与当前turtle的交易总次数% s% O1 z X1 e
trade-money-total& Z5 C; y6 I; d; H. w7 f, l9 Y
;;与当前turtle的交易总金额
) v- _9 a+ Z# C r7 Rlocal-reputation2 H: G# t$ p6 c. p3 A
global-reputation
* Q( P! I; a2 E) t7 xcredibility
- @8 S' `$ ]% R7 i+ {;;评价可信度,每次交易后都需要更新: E+ T+ P' U" B' b; o. h
credibility-all
9 a% i+ j6 V; X1 [9 |/ I;;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- _8 k+ U7 \# d b
7 L+ e [9 O' U5 }# `: V;;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
# y7 W; H$ x1 a1 p4 Qcredibility-one( U0 C. s; S+ R
;;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+ j1 B ]( ]6 r9 c5 X8 C9 R! u% Q& @
global-proportion
' V- H, }1 V. hcustomer
- h8 R1 Z, @* C/ t" V2 Z' \# Gcustomer-no3 Q0 Q; A: S# f9 Z+ w4 x0 V
trust-ok8 u! w3 [ t+ d5 N4 X. T
trade-record-one-len;;trade-record-one的长度
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2 _. q! Q, c3 a. r# d;;setup procedure
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! s! O1 {* P4 dto setup
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ca
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+ X' `6 v! @, e1 \initialize-settings/ }5 j4 p1 y7 S8 P! J& t) \2 O
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crt people [setup-turtles]
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reset-timer6 w/ @$ b+ [& u2 k0 N+ s+ W
- U6 a) N, W8 _9 f8 @7 A, Vpoll-class
& ~9 r9 |: q( C6 t$ ~6 P% o! S- B9 k5 g4 I; Z/ m' S0 E/ ~8 V
setup-plots8 M3 w5 [; Z/ a
$ n+ C( Z* m/ J: T1 tdo-plots. G) \) r2 b0 N
end; h: i! j. E& ^) e; y
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to initialize-settings! c6 L% f$ `( D: f4 k1 V) b, P
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set global-reputation-list []
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8 [5 \8 M4 m( dset credibility-list n-values people [0.5]
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& J% r1 ?- M5 Z' g- p/ u# rset honest-service 0$ P7 {# b8 u1 S0 |
: N/ K& X6 [) M0 N8 sset unhonest-service 0
8 O, ~' Z) U' M# ^$ g# Q) |+ T8 h% `, w; E) {8 J
set oscillation 0- @: `" y$ W. N. p
Q! r( q O2 C! m
set rand-dynamic 0
% F$ a5 N2 Y- t( \8 i- M4 @end
' |9 X' Y0 \) I1 t2 \$ ^. }% t7 s
4 L: L/ N4 c& B6 x* L* ^$ R* _to setup-turtles
/ y: e4 U6 s8 @5 X/ wset shape "person"
7 \6 |( }! P/ u8 h2 Ssetxy random-xcor random-ycor) R6 O5 B. t& z7 m+ K
set trade-record-one []7 K3 q; P! Y# E* N5 S& A
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set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []0 {$ k9 H& L5 G! x, q8 d
set credibility-receive []
+ J: x Z5 b u+ ] Xset local-reputation 0.5
( }7 O0 ? a G0 mset neighbor-total 0
1 ~$ N4 A( ?# Kset trade-times-total 0
: C% x% r. M" z- h$ T0 Zset trade-money-total 04 z, {# D T W. J9 w
set customer nobody$ {4 H6 Q% `# S1 b* k% |
set credibility-all n-values people [creat-credibility]
0 W/ I0 k' U. u5 }set credibility n-values people [-1]
) Y' N7 S* t: @$ e* pget-color
$ M, P& I" i( V# @+ S1 m
3 ~/ Q- l& H) [ D3 t0 q+ eend! }& h" R9 ~/ Z0 ~/ `" T2 W: }
8 K7 g; `9 O% C( c" B* U$ s* q
to-report creat-credibility
% Q4 r/ j* {9 Ireport n-values people [0.5]" ~' N9 v/ P2 l$ R+ R
end- e; V$ z+ X. v% F7 E
8 \5 |4 p+ b7 u5 h \1 Dto setup-plots
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3 s% M5 a- t5 D9 l& Zset xmax 30
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set ymax 1.0
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, r2 d! i9 i4 H0 l0 H9 l- `$ [clear-all-plots/ t2 F! \/ u( x
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setup-plot1
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setup-plot2" K1 {( v$ S/ F
1 {, G. R8 E0 T8 b0 k, Vsetup-plot3
9 \' \# q I3 @+ d' m8 K1 _end' _% h; W1 S% E7 R! s* Y
& x4 B5 c5 i( _8 o, S
;;run time procedures
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G7 q" Y0 c2 `' ~to go I! S9 y9 @: h* Q! I' \
/ T2 `( a; ?! R. V/ Bask turtles [do-business] {; V% X; J- I% F
end
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to do-business 7 ?' y. ~$ x" n2 ]5 s( M
$ `" ?8 r3 D" s5 }( p
( Z$ x5 a! d! Z
rt random 360# f2 B( \8 Q+ k" h) l
- r1 U/ Z- ]+ x5 j2 a- K$ S" }
fd 12 f, v' S* z+ p, B, C4 J2 o! b2 ]9 r
# p7 S f5 q6 u' j$ h mifelse(other turtles-here != nobody)[
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% i7 j3 y/ v* M7 Y+ z8 {$ Zset customer one-of other turtles-here9 z$ P4 R0 i- ]8 h
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;; set [customer] of customer myself) z4 |3 j4 L2 ^/ ]: ~
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set [trade-record-one] of self item (([who] of customer) - 1)
' D! y% a" V+ h0 t+ S$ p6 a8 P L[trade-record-all]of self
: V9 O- ^& L) ~$ @; @+ z% k- `: P;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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. K h0 ^, I: K' w" l9 mset [trade-record-one] of customer item (([who] of self) - 1)
# l3 w8 V/ g% z[trade-record-all]of customer) g/ m: _( M F
, ^' c4 W4 v) p) F4 Aset [trade-record-one-len] of self length [trade-record-one] of self
5 F* X" \% {" D* X" l+ _- a. P/ i. }7 G
set trade-record-current( list (timer) (random money-upper-limit))
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9 V5 c5 v1 L) B- W9 I) ^ask self [do-trust]# i/ N5 }- U2 l" d" a
;;先求i对j的信任度5 {; D9 V1 I8 t' Q' X) G
& _0 ~$ V: p# y
if ([trust-ok] of self)
' G1 ~! i( n% v+ G$ e7 w e9 L# S;;根据i对j的信任度来决定是否与j进行交易[$ V* {; `9 `8 ?5 F
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
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+ m2 c( [, r/ ]/ j" b2 hdo-trade0 d. T3 [: g! L
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update-credibility-ijl
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update-credibility-list
/ t3 ~& k0 c! S6 O$ l' [) N8 R, z: \9 G9 S$ {' W" I
" P* ^! C: e- }& x% ~update-global-reputation-list
$ ^( D. N* v5 M9 I1 b& v* d
5 Z: N! \: J. j2 D) E4 tpoll-class
: _4 ^& ?* U' H3 A, I8 E# `. ^5 |( \4 U0 N( O% t
get-color
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]]5 o( n( O. F+ l% e5 H- t
. d; m- r) p2 W \% z
;;如果所得的信任度满足条件,则进行交易
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, K% C, ~) V5 {; x, M: h[
; Y; e2 d( ?8 h. j, h0 K+ A" O. f" @: L. K6 o, X. \
rt random 360' }1 R& k# L# p
; I& B: G% @7 B8 qfd 18 _+ o. v6 M7 i0 _) \* k! C/ b
# \% U0 n& G% f3 H]9 v$ u7 o7 d6 ]# L) W7 U" T, I
+ T/ b1 [) J3 @0 v8 Vend1 x" |3 l1 Q: C* m! m [3 L
/ `7 i' W2 h/ s2 d$ A @to do-trust
& l" ~- B1 g9 n+ w5 ~# Qset trust-ok False+ n: c2 n; D Q2 m5 I
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7 ~9 f- H7 D |& F! {
let max-trade-times 0
4 J: a+ V3 s2 M0 I* bforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]2 a4 |4 ^( n$ e3 ?5 u
let max-trade-money 0
J( m+ r+ E& q L7 P. Q0 t5 h, `( ^+ ~5 Iforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, } [9 x/ Y: s, r; dlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))" o5 ?; L) \ s* d1 L" t
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% q& k( n6 S( \. `- _! m/ A
get-global-proportion7 v9 C0 @9 {7 r. y1 [
let trust-value
, u. o Q6 w: o0 ~) K# Slocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
* O& E. ^+ T! Xif(trust-value > trade-trust-value)
7 p0 R# B+ z& I[set trust-ok true]
; S8 S4 m9 J( c# w0 F1 p' g. C2 [9 _end3 {: e9 M O, D. @
0 t6 Z3 b d6 f# K
to get-global-proportion
+ d' t+ S0 q4 y* _4 Z! ~: @ @! qifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
9 y1 X1 s% N! S[set global-proportion 0]
, v: N- K( u% f# p: i) h[let i 00 ^- H2 c# q/ M6 W9 x( ^
let sum-money 0
6 `$ A9 o6 [2 R7 s) Z/ Hwhile[ i < people]" f% I& T5 G0 ^$ X1 w: W! p
[& G7 E1 T" G$ x
if( length (item i
* S, ]' V8 N( {3 c0 R[trade-record-all] of customer) > 3 )
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set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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2 Z$ E9 t2 R7 H+ H5 Slet j 0
2 Z" U( j0 S$ G0 y q2 |let note 0
# S2 i/ `. ], |' J& E+ F" Nwhile[ j < people]
$ A+ }; m' o. @0 B9 u, H[
, J8 ]2 y- _ o8 ]if( length (item i
2 y6 F9 M! P4 V8 t! l[trade-record-all] of customer) > 3 ); D; C! B; O# F7 m1 t; U y
[
+ |( F3 w9 u" Zifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
& C' ^7 T9 Y" A[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 F: [8 c# v1 H
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
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& b4 D6 t5 ?: Q8 `7 Dset global-proportion note
7 Z3 ` f2 y( h+ E3 ^2 i]" q. ^2 V$ R, [1 g' ], y, Y8 O
end& k/ K# E0 i+ p3 g! @, {
. S- Z+ s9 ?" Y! O: U( @4 u4 Ato do-trade
* O! L* Q* w1 _: K;;这个过程实际上是给双方作出评价的过程* g. @# j2 g! X, V, i
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价% I4 b# c; u7 a2 A: N# B7 k4 K
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价" ]9 `9 e- }/ ~8 b8 k0 Q4 x9 d
set trade-record-current lput(timer) trade-record-current
; s7 w* }; D3 X; T6 e4 \1 B;;评价时间1 v. ?. _1 t: Z3 `. b% N' p$ g
ask myself [/ S8 `. K2 | J
update-local-reputation K% s$ l8 A% m% p# _
set trade-record-current lput([local-reputation] of myself) trade-record-current0 a* u7 w( f) g( t
]
* ~% z! b# }6 A( ?set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself" Q) W; [( t- x8 O
;;将此次交易的记录加入到trade-record-one中
D4 o2 j1 N w; p, C5 lset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)/ N8 X$ _3 E# E2 I- F1 ? B
let note (item 2 trade-record-current )' j! J' d/ x- k! a3 U
set trade-record-current; t6 D* F# \& M) e$ v% n& H
(replace-item 2 trade-record-current (item 3 trade-record-current)); K, ?, x! h4 |- I ~
set trade-record-current Y O) E+ ?5 r# j: J# [% E$ }7 I E
(replace-item 3 trade-record-current note)
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ask customer [3 r9 w# J3 v# v+ k6 g9 v g
update-local-reputation
% | I) O/ o4 T, uset trade-record-current7 J8 g9 B' D8 g. D
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
+ h: p' h; E; E3 ]+ L]
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer0 x: e% v5 D6 u8 T& O% u* B$ ~& S
4 z& V# d5 z8 ^( \; P
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))% P5 ^5 O) x, G# O4 ] o: `
;;将此次交易的记录加入到customer的trade-record-all中
4 G: I4 m, P7 c2 q3 d$ Z; I6 Dend
+ P7 `: @1 t, Q. R H1 {. S# u) O
& u1 D& ]8 v( s" v* F8 p% `2 C2 ]to update-local-reputation
- A2 s+ P: b# R( V7 l0 d# A( p; Nset [trade-record-one-len] of myself length [trade-record-one] of myself, U' L( e, ]1 P; S& D) o% J
) F; i! D. m$ e' x
$ F* W T6 d8 Q$ q3 C;;if [trade-record-one-len] of myself > 3 $ l0 I! ^5 @3 @- p
update-neighbor-total
4 |. ]- k+ y# N/ W0 \4 I1 q3 J;;更新邻居节点的数目,在此进行
: j4 H' z0 L" L; |1 Z! s b( {let i 3! Y; M1 K J# q9 X. G2 j! x! G6 K
let sum-time 0
9 Z- q6 Y" \& Pwhile[i < [trade-record-one-len] of myself]- T& v" m+ Z- P; \) _5 d
[
. a! D9 Y+ O" w% P3 p( Wset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
$ a( C a7 d: V5 l/ T* q/ Zset i* E( P+ D1 y; M) ^1 ]' U. e
( i + 1)+ U6 Z: P1 v# F& F+ i0 e. {* J
]
, C# o# }) ~, N7 zlet j 3
& o0 h5 D8 \) V; G: Jlet sum-money 0
6 b4 ~& l2 c" W" C1 x8 hwhile[j < [trade-record-one-len] of myself]! S3 S9 R9 a/ W, E' h2 x3 z% W; f5 W4 F
[
& n; J6 O5 x. k# t3 _$ T+ [4 mset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
2 u+ H! D. f+ N' {set j$ j/ n% r, F: a: g9 e: n! \7 { t1 Q
( j + 1): E( b" }6 U5 C( D+ X' m6 g
]
% [8 o9 Z" R" h( |let k 3
* Y/ e6 v+ T+ L2 Y2 E4 nlet power 00 @8 X0 g! V4 e' x0 O, j% I( v
let local 0
8 I( x6 p( x: N+ H% {; ^+ V, Rwhile [k <[trade-record-one-len] of myself]
* [2 F$ a+ m3 ~" f# s* m4 R; \[8 @8 o1 M5 u# ?
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)
) m7 \! N/ I$ M' Zset k (k + 1)
# e1 T4 w0 j% U: O$ ^# U]- ~' R% |" F0 z2 n6 r% m* {) e& B
set [local-reputation] of myself (local)
# }- o ]- j# Y. R4 eend
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to update-neighbor-total; h% `3 D1 g( E7 a# t0 r
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]& f/ y" @% q) Y2 Q
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k) P* N9 q, y* m
end9 d% w) p6 A, P& o
% J' Z( c0 ?$ cto update-credibility-ijl
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% n5 a! u* h0 o' {;;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。
1 D- e" o+ x" F- W& G. l- Hlet l 07 Z: L! d' G" M' v% {; G" _
while[ l < people ]
/ K* \# A- [) L$ @0 M w' R;;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)( s x" n$ H6 ?
if (trade-record-one-j-l-len > 3), K/ n+ ~. Z( f
[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
+ {. l+ h: |( E) ]8 |+ Llet i 3: Z- E' P, C" y! k# `
let sum-time 0# {! }+ Q# t9 v8 _- H
while[i < trade-record-one-len] F6 O) k" q' U9 |& E6 Q
[ P- d+ S, ^/ `+ C; ^% f0 Y9 Q
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )# |2 H# k$ H6 T0 V6 o
set i, r) y! s0 j/ d) p
( i + 1)& V* ~- w' ~- ^2 P3 i
]
5 ~+ Y- [/ J* z" w- }let credibility-i-j-l 0
6 X% a8 W" _- G7 ];;i评价(j对jl的评价)! b5 G. j7 E( a
let j 3
" ?2 _3 y( N5 U' c Jlet k 4+ z& s: C8 y, [: V4 o, T* X
while[j < trade-record-one-len]
% o3 u8 ^& O) U# [- M' H5 p' M[
+ E, _5 L2 D2 m' |0 x7 A2 a" awhile [((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
6 M" x3 x8 a: l7 ]3 Lset 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), l$ ~( _) B1 C. i
set j
+ G7 F2 |- }4 Y; {( j + 1)* p4 n- I5 s# W; k' \% D$ H
]+ p, l- V8 f7 x% Y
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 ))2 M/ c9 `1 _. T- F) ]2 A* J
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
3 v, h6 D- c: w) e# V;;及时更新i对l的评价质量的评价
# d5 z% |. t' U$ V7 Y( Bset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 g$ T$ d/ Q) g, [ ?% v7 g. A
set l (l + 1)4 h3 ?: T9 o! m2 i* C& G
]
" N2 Q' Z6 F5 p! xend
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to update-credibility-list
9 K) k V0 Q2 C; M# E& D7 Tlet i 0: y% C" h* R! T, ^. X. h; _
while[i < people]
) Y" t! Y7 @+ `0 J; g3 I/ b[
# o* o) ^5 D% H$ Y: {let j 0
7 J4 }$ L" q- n7 j7 _% a' w( O" Slet note 0$ i, C( c: P* T# A
let k 0
6 `3 Q% T0 x6 }0 U;;计作出过评价的邻居节点的数目
, j( ~+ e, h6 h8 I; F5 u3 _while[j < people]% k5 D9 F" \/ ?
[
! B% E9 C p- x! [) f3 b: c. bif (item j( [credibility] of turtle (i + 1)) != -1)
5 s5 b1 V/ M; R$ @7 K: E;;判断是否给本turtle的评价质量做出过评价的节点3 @: |, j0 W4 n! f% w
[set note (note + item j ([credibility]of turtle (i + 1)))
& y# A) _1 x# R, Y! `( E;;*(exp (-(people - 2)))/(people - 2))]/ {( r3 z% N& F( {+ u
set k (k + 1). E$ F& v& G4 F2 R/ x4 Z
]
$ q. j: s/ `2 Aset j (j + 1)
0 A0 c* ]% e( b( }]
4 ?1 s- i# I1 q, K8 V+ e7 T! sset note (note *(exp (- (1 / k)))/ k)7 s. j3 @, z9 V2 X- a
set credibility-list (replace-item i credibility-list note)' G& c5 X( {, m& h
set i (i + 1)
, O% G0 F4 e, J) |5 I3 r! ~' b]
! w9 n; s$ U$ u# Nend
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to update-global-reputation-list
5 ?- s3 N1 C% B9 ?let j 0
% g+ M3 c" w8 E2 p9 C, a, ]7 Twhile[j < people]
$ @8 O: x' f' a[& a$ k5 P6 M4 M( f# w
let new 0+ r6 Z" z, W- w1 a
;;暂存新的一个全局声誉; \ t+ J( g& o' n, R7 U" N
let i 0. o7 K& _- o" j4 Z: s; q9 y
let sum-money 0! u0 |5 |( ~) G3 N$ d+ H3 h
let credibility-money 0
9 P% o' V. L, R# i" F. i1 X" ^while [i < people]
/ {) r) f" Z( |0 I7 Q[
v8 D9 {- D: `3 j. A5 tset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))* I3 ^) q' ~2 w7 |8 M) s+ j; b- q
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
& u5 `# X. H" k% R) x8 v2 Hset i (i + 1)% x+ |/ q$ e. \. M, o2 g8 Y
]+ i% B2 c% \0 ? B0 J8 ^
let k 0
y, m! }6 L# }9 B \4 j! Ylet new1 0/ G3 W( I9 k2 N. E% U; H
while [k < people]
) L: W8 T) q0 q- n: p[
0 O9 G& r& a/ W& Bset 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)2 X4 T* D1 a8 X# @8 F
set k (k + 1)
; t+ K- y0 w U+ |. N7 {0 S: Q- R |]
) G/ k5 k7 R/ o. C% ^8 |5 x' O2 sset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) Y2 k- {2 P' t
set global-reputation-list (replace-item j global-reputation-list new)7 {) X, G+ Z- S" @+ t( d
set j (j + 1)5 U- B& n4 h- B
]1 K5 {$ ]- ~$ l
end- e5 ], z" d7 C$ P9 w$ G: X n
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* X3 H, W. U6 q
to get-color$ j) y. \- u: U7 w
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set color blue8 G8 h4 a4 V& b- i
end0 H) j3 v7 [9 n: e1 Z
+ P. b/ V/ v" A6 q2 ^
to poll-class
9 H6 Z4 [7 @" f g5 k$ C4 Oend
9 j6 _% \# M' H; [5 |/ Q
7 q2 B( N% h) z1 a" lto setup-plot1
5 Z* O, G$ q2 s) a0 u; R0 U1 _1 b) [( x. \/ r
set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax6 v D4 P. Y% e3 k
9 t# F2 Y ^" a6 q1 _- s& }0 K- g
set-plot-y-range 0.0 ymax
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8 ~' w" n2 S; @' L; i; p3 {
to setup-plot2
8 @+ p" W+ z( D! ^& f/ ]5 I3 _4 y! y, E: C' o
set-current-plot "Trends-of-global-reputation"/ a' l, @3 Q3 n, o6 q
* n7 T) B8 ` M5 @7 @set-plot-x-range 0 xmax
: k# U& i7 k6 q. n0 U& g- L4 _
* B& T6 r: }# nset-plot-y-range 0.0 ymax
& G/ X! ] ~2 r# t+ d2 O |3 ]end
7 N) K+ R% x: ]. J# u w. r$ C' L4 g
to setup-plot3
4 J G5 ?4 F8 T& L" }# X+ K) k3 C1 s, G5 w z
set-current-plot "Trends-of-credibility"
8 M0 E4 {( x$ U1 L7 o( b2 L/ l7 [- Z i# Q
set-plot-x-range 0 xmax$ R: t- K9 v. J3 S
4 x8 {: R3 Z, O, S' D% x8 u2 dset-plot-y-range 0.0 ymax
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* J# I- M+ E# S0 o
to do-plots
7 P1 `4 g) G \set-current-plot "Trends-of-Local-reputation"
. p+ Q9 u. N1 R, [set-current-plot-pen "Honest service"
6 @. c; n$ e0 ]+ ^8 r% p3 Vend$ L6 a- w; J7 i& H# T
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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