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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
A: v/ S# z( @. \; Iglobals[! H5 t9 S3 l) j, w/ G/ ]/ {4 A
xmax8 w4 N8 x8 o# A8 H& b+ X
ymax& g, D4 l: c- z' M. D, u2 G
global-reputation-list$ W/ j2 w9 D, P; h( k0 P
& }) G: q. F* w: h;;每一个turtle的全局声誉都存在此LIST中
% h2 x( ]6 N ^/ ecredibility-list; {: W8 P! }* z6 Y; w, P3 g1 [
;;每一个turtle的评价可信度1 }5 z7 R ]! \1 }4 b( h
honest-service
2 R1 ]- f( d8 g* @unhonest-service( e" w. ~/ g4 `( J/ M2 f) w
oscillation
" I5 O9 B4 P4 k p, {6 }rand-dynamic9 s4 j1 m# Z' A3 e2 [; p2 U
]# q, C- |5 b' J) j: ?8 f9 Q% M; O
& X/ \# m* w/ N$ Y1 Aturtles-own[" k: a9 z& x$ }
trade-record-all# t+ `& J# |* n
;;a list of lists,由trade-record-one组成
) E R+ W) g" C/ Gtrade-record-one, o. l: ~" v7 |2 i
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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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]]7 }8 J& X) Y8 u. y0 d1 [( j/ ^+ g1 u
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]; ?' X6 ]6 M, \9 G$ f
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) o+ V' G' _1 ]$ {( K G. D$ x
neighbor-total
9 }0 S! ?+ R8 _1 M4 h;;记录该turtle的邻居节点的数目3 K8 S. z# ], ^" r; n
trade-time1 ~3 O$ _1 Z L
;;当前发生交易的turtle的交易时间$ W5 ^5 I: O6 n, D) ]/ E
appraise-give: P6 D6 B% A0 E0 A3 n% Q
;;当前发生交易时给出的评价
1 N, M" ^* B8 a. ?) R# eappraise-receive: ]$ g! e! Y" k/ W1 I/ ]/ ?8 U/ B
;;当前发生交易时收到的评价9 s" p% U, E' I6 C* b
appraise-time$ ^) p9 A! L A) X1 X
;;当前发生交易时的评价时间5 y% M' ^7 ^4 ?8 Y) t* O
local-reputation-now;;此次交易后相对于对方turtle的局部声誉4 S& B( K8 r T$ p
trade-times-total
. ]5 m# h s% i' y B% B;;与当前turtle的交易总次数8 e4 X/ ^3 D; \
trade-money-total- w3 P4 y M8 f! R1 L# W
;;与当前turtle的交易总金额
9 x$ `! P& N5 `% zlocal-reputation* S C9 Y4 ~0 X/ H( p
global-reputation
/ A( p7 X: d3 Q' X$ d3 hcredibility3 [. D- E. W5 t- R/ J" c- b' H8 o
;;评价可信度,每次交易后都需要更新
& {, j, L% H- @! M8 }/ ?* J" {credibility-all$ m, m; W, v2 Z7 F s( k( f, h) 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
& s5 v4 Q( |+ j+ p0 ^9 f* a( ]/ F/ p5 L# D+ o& _, g K+ }
;;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0.53 ]0 q0 S. W b) d! U
credibility-one1 @+ a6 ?( i) v2 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' j2 `5 h* v3 @% o9 h+ E; ]3 ^
global-proportion" N/ O8 Q' p; Y& c4 T. w1 V# ?" `
customer
% e4 }3 E4 t) Zcustomer-no
$ u& v7 p" s) _. J% ztrust-ok
9 e' [+ K0 A: M. @/ Q" t7 ~/ ptrade-record-one-len;;trade-record-one的长度
/ ^7 }0 Z" p! Y/ A( ~# c) ?]
/ \9 \; H7 j% d$ K I6 e
7 R2 x6 A! `$ v% v8 e1 e;;setup procedure
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$ x( F7 n& t# z( c( H! V0 mto setup
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5 d4 h2 m3 V6 K$ Mca; E# h9 K( a/ S3 N. [+ ^) \; h( @# A
9 D5 f2 q* o6 B! I( X* I- v( U' einitialize-settings, G, A9 V# \ T9 a
3 _! U3 l8 `5 A& scrt people [setup-turtles]
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/ \$ O6 C- x W! d; ^reset-timer
+ Z$ `5 k. Y3 d
2 L# g' J0 ~* v8 k( Q0 ]poll-class+ w" {$ w, U6 f, r
) |* [: x8 s6 D% D. Jsetup-plots
" U# T! j. p c2 q3 c6 J6 J" c7 j
. ?9 h/ q' U6 Fdo-plots
1 B) K" e" W1 @end, v. }% d( e q7 s
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to initialize-settings
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6 q# O2 z! b1 I# V) N& F1 [set global-reputation-list []
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set credibility-list n-values people [0.5]4 n' q; S4 z* T% b4 n
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set honest-service 04 V+ F3 k/ D( }
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set unhonest-service 0
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set oscillation 0
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) v+ G# w$ S: i5 O- t- fset rand-dynamic 0
- w ?4 q2 o6 s |% bend
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to setup-turtles 1 x$ h( j+ U: F l& A/ C
set shape "person"
/ _% O" u4 }. e" usetxy random-xcor random-ycor
- W$ @' N5 Q" ^; xset trade-record-one []
6 [$ J* w6 E5 V- s& T2 X- h
3 E" _. x! [$ H- N0 S8 S) Qset trade-record-all n-values people [(list (? + 1) 0 0)] f) C5 Z/ g. ~# x/ z c. _
+ \7 N9 u" n# _9 s1 f
set trade-record-current []
+ v1 P9 j9 E4 P: v, jset credibility-receive []
/ F0 i; T3 B w& U8 uset local-reputation 0.5$ E1 J/ }$ z5 s! B, P) M
set neighbor-total 0
1 O* Q/ u& c3 J6 c% Iset trade-times-total 0+ t N) F) C% I4 Q+ ~$ R
set trade-money-total 08 `6 h- z/ p. e3 o) R# ?0 x
set customer nobody
6 v; k9 T( B8 k4 z3 I$ p* H6 }set credibility-all n-values people [creat-credibility]
5 l6 c2 s* Z, I' K% Zset credibility n-values people [-1]8 j! L3 v/ M8 x" S0 t
get-color' a F. {3 z5 H
# b! t0 k4 A6 K' }& m, F( F. h
end
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to-report creat-credibility
' q# ]& G- r# z6 C5 Zreport n-values people [0.5]
7 P6 ] k/ `. P. {: oend
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to setup-plots
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set xmax 30
5 x/ n& o' D) Q3 r7 A0 ~
8 w- V8 n2 @! Oset ymax 1.0/ G( z: m+ a0 m2 z( N9 a; |
* W% r& \: h; D9 S, ^" j0 r
clear-all-plots
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setup-plot1$ z; w- L2 |# L7 X: |+ Q5 Z' ]% p
$ n; u; h1 N) }' E* [
setup-plot2
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setup-plot3
3 O! R; U* f7 N" j4 k6 W0 g8 i! aend
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;;run time procedures
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. |" K6 c# d! r/ L/ v5 L# |" {to go; v, [6 }5 b( T1 m; }0 j( ?
4 r2 ?; B& I6 c) m" I, U9 l6 j
ask turtles [do-business]
: i+ D: x. D: W+ ^/ I$ l6 vend
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to do-business
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; ?+ {$ J6 l/ I1 N6 N8 S3 trt random 360
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fd 1( R* J3 n6 [0 T8 W* I
8 ^8 w7 z j1 N& j4 B9 l# {
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here% x M" D1 i" y4 K+ y
2 G* T# T& v7 U* I# l;; set [customer] of customer myself, B4 A1 n# F$ {" ~8 S
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set [trade-record-one] of self item (([who] of customer) - 1)+ }6 g1 G$ b$ w, \
[trade-record-all]of self' V! U- H$ c. H3 H8 n
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)3 q1 M6 l0 }2 q ^+ x
[trade-record-all]of customer1 O" S/ R4 G. `9 a
6 E3 R* p i4 b. Iset [trade-record-one-len] of self length [trade-record-one] of self5 _+ i* N* V- g
, \1 q( I+ s! R; p( Dset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]1 x6 m7 I' B- J4 n9 _5 ^+ x
;;先求i对j的信任度
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) c% e6 {! A2 v! t; c' L; vif ([trust-ok] of self)
1 S2 f! v/ S! N& I;;根据i对j的信任度来决定是否与j进行交易[
1 @; ]9 {: B6 T, D6 N% ?' Jask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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" \1 ~8 h, i% L& Y; p r {6 i* `) O, [
do-trade8 Q7 e: `+ `/ L: j
G6 Q5 H& Y; |' _ yupdate-credibility-ijl
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update-credibility-list5 R; i2 `! A/ M# s
3 E6 k h& G1 O/ A0 Y
8 V( d' B. D5 m- n$ S: `8 iupdate-global-reputation-list
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poll-class
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get-color
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]]- `# k( W5 p* u9 Y
$ K# I2 h5 ~8 g3 d5 Y
;;如果所得的信任度满足条件,则进行交易" p& M5 F$ m6 e% b
8 G5 n& P8 q- R[9 P1 v) n* H# X* M
9 B4 N. o; Q# Y# b; Z# Prt random 3600 \0 ?- I/ R3 C! r; l/ [
7 K+ E& a. |5 x7 F1 P$ S
fd 14 O0 L# V% P/ x/ G7 G
, ]: [9 s% y5 b9 V; m]
# d% b5 ?7 ^9 c1 N' Q( d2 D F2 }. \5 r
end8 P d {" c2 c: x+ w- T' w6 {
. r0 x# Z4 n* i; ~( Q; u4 ^to do-trust
9 K7 w8 D6 k T7 _7 Lset trust-ok False' Y9 ?# p7 B5 S: |
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2 P" A# O8 M f8 r+ Clet max-trade-times 0
0 n \% d( _' \0 M1 z! ^' L1 V9 s+ yforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 d" l2 y7 U+ ~. S2 y( \let max-trade-money 0
: i# N& ?- Y# X/ @foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ }" d; \7 t; d1 `+ z
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
$ z% ]1 `' I! s
9 u9 x) K n _ G/ h' e6 w0 }, c, ^. o0 l
get-global-proportion( l, n# ~! T3 h" _7 k" a
let trust-value# i0 U! m$ m* W% S: v0 _! U: 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)* U0 t+ F( E1 m }3 Z
if(trust-value > trade-trust-value)( @3 M9 s* q# f& I
[set trust-ok true]9 [- l R, {* S
end- ]4 L- G9 f% y8 H7 I! D: j y, S w
: R% `/ m+ G8 X4 U+ E8 K, x& V3 L6 O$ G jto get-global-proportion) X, Y1 Q% E+ i5 Z; n
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
/ g# |/ {/ a/ P9 [[set global-proportion 0], i; T+ {: F% \
[let i 0 o! ^6 r$ K+ o" d
let sum-money 00 j, R# P- r/ s- N
while[ i < people]
5 H9 j% ]/ r% a8 f7 Q9 J[ W' j+ X5 x2 Y7 t% c& r, a- Z
if( length (item i
! D+ {, Y" B$ Y6 C[trade-record-all] of customer) > 3 )2 T2 \, n' S5 E8 Y8 i/ f
[1 C# P4 H% r% ]$ b! p# {
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))1 c- b. g1 q! v h+ X. ]
]
) ]1 t2 W0 g- R. d; h]; t6 r" F9 r& ~5 R& G3 n
let j 0
* T, x" ]; q ?+ B- Slet note 0* Q# M, A" C9 {2 C6 i
while[ j < people]" S9 Y9 f$ v/ R+ Z: |! j$ r
[
: m1 A {) y. J5 W) `9 @if( length (item i
5 [# i- m9 X/ { m% V+ G[trade-record-all] of customer) > 3 ) {: h* U' J: f$ {3 Z2 u
[6 ~' W% h0 `' D$ m% v4 }
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)/ a4 [$ {4 i9 [% L; s: m
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 G2 w; v5 X) Y& Y% K[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
1 \, m, z/ Z& t' N]
' L( G8 D# k% D% p: T]! L! a+ V+ d [. G- K6 S/ v0 i( J
set global-proportion note
8 V; S( e3 U1 H% X]
' c9 [$ A+ e7 B) ]. h2 K S+ Send
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1 v; Q2 p! r/ Dto do-trade8 S# j' {, m9 ?
;;这个过程实际上是给双方作出评价的过程
6 c4 v, a0 G# ^* k; Xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价# N; a1 l! A4 l' P) P: G( R
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价2 T& z* D9 D7 \% T
set trade-record-current lput(timer) trade-record-current1 y. i- e" A5 u! H
;;评价时间6 r0 N( N- \9 y+ h- r; E, B
ask myself [+ N" C) K+ o$ q/ |
update-local-reputation* y5 C: r2 O# j
set trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
3 c% b$ l" {5 c. Q! { u;;将此次交易的记录加入到trade-record-one中
4 s6 z R+ Q, f! _" Q7 Iset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)% F' W7 K4 h+ @
let note (item 2 trade-record-current )
* u" ]5 d# I! [set trade-record-current( Q! F& B, @0 p" I5 x8 S
(replace-item 2 trade-record-current (item 3 trade-record-current))4 j8 ~5 j9 `5 X9 u. t% I2 @
set trade-record-current8 ]# A3 k) l6 T2 {( m$ f
(replace-item 3 trade-record-current note)' l6 F4 A# j+ W/ y% ]
* v$ Q4 _' d9 B' {" m
9 a) B/ e. s {* q7 F6 pask customer [
" y# \3 i2 S2 l7 [update-local-reputation
" ?, W: \$ S5 |9 J9 ?set trade-record-current( y3 C2 G) U9 b2 m, y" A
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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# ?1 o! `& H V: c+ K
2 A, i! p, w ]. B4 ?% Cset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer% A9 U, }& P, k; {
( e' v! _7 s2 O U cset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))) R, Q& j6 S: _2 s5 H8 x
;;将此次交易的记录加入到customer的trade-record-all中! x- k( q4 H' a- J2 W. s1 H
end
5 U9 I! D4 v" A3 }
2 g# w9 b6 h. Y. @) A9 H) |2 \to update-local-reputation7 d1 h( w; R% Z; w
set [trade-record-one-len] of myself length [trade-record-one] of myself
2 Q U) H4 Q. @/ P* G
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J. C( f- H. m4 E- [7 p) C5 E( o% n;;if [trade-record-one-len] of myself > 3
4 v h7 E- R( O" vupdate-neighbor-total; g; O' C! H/ ]2 G
;;更新邻居节点的数目,在此进行# {* ~1 g0 W) j" b
let i 32 E% o3 R7 u, o: h
let sum-time 0# O4 d0 L: \* X W
while[i < [trade-record-one-len] of myself]7 H; M6 k. z3 W# d
[
9 X8 }5 m7 H, R6 h* g M5 a, rset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )+ A4 `9 E8 f T/ V6 o% ~9 z
set i
' a( b% @0 n% b* B( i + 1)1 ^7 M. o6 _: v
]
$ T$ F5 D; ^% `) w3 elet j 39 v) w9 j3 L) V, I4 d, m6 v$ V9 q
let sum-money 0, F: d3 m' }; r% c- [. R
while[j < [trade-record-one-len] of myself]
- }0 j3 C& g2 T6 @+ @) m6 e' \; R[
8 C; V0 u. Y9 n+ b0 Q) w* i+ 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) b. Y# e6 H! P# x$ L
set j4 K' E/ p& G+ [& V" O5 y7 T/ I
( j + 1)
( t) Q5 o1 q/ e$ P# H/ q8 Y/ `]
9 }* P( G) @9 H0 w) x) y$ O3 Slet k 3
: N0 @* P( s+ _8 ^" {' d6 Jlet power 0
" L% R; i5 }* Z9 L% Tlet local 0
C3 K' a! g# ewhile [k <[trade-record-one-len] of myself]
" O5 b7 A/ ^& D/ Q$ ^$ ]. n2 k+ i/ \[! |5 U7 F0 j* N2 D
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)
3 l8 `$ t( q& U; d$ F; q4 z& m& Sset k (k + 1); r- k! W/ G! l3 V5 W* E1 a
]) j1 Z) h" w+ y" d3 ^
set [local-reputation] of myself (local)
; ~" v- j7 V% mend6 t8 v1 `3 S- u+ c3 _8 X: J
. N3 g" r6 E" o; k2 tto update-neighbor-total _8 ^8 s; P. R8 j& P( A
R, i. G; T4 i& q
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
3 W$ N6 Y! D6 q8 ~/ \, h4 Q6 g4 n" t( }, b
- z' R2 J* C b* ^" x6 a
end1 | z' P' [6 X& Y$ I7 l
% J/ y4 y3 @( {to update-credibility-ijl ) L& l6 h& j8 @" K5 W
5 _% V2 Z L k! 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。" o0 i3 M6 d! k( l; F3 t w
let l 0
- P( {; _4 L$ b" j/ N3 @# F9 Nwhile[ l < people ]
! M( n$ m2 @4 x4 W;;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: c6 l/ T* W% o" N$ \
[6 v3 i1 y8 b; K2 S7 p( V
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)' h; F7 _6 h2 e _
if (trade-record-one-j-l-len > 3)
) c# h, Y! W. h( I# w2 x[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' F5 E5 d4 w# C) _# H$ l
let i 3& x6 e1 T2 r6 n' M& C
let sum-time 0
: w! v! Z9 \/ ]/ jwhile[i < trade-record-one-len]
: u& j* F- P# _& E0 F[' F2 P# {; F/ ]" P$ a& E1 Q
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )2 K( n; @2 h5 d$ _5 `9 m
set i
@1 f4 T8 P V A8 ?: Y( i + 1)
3 l& v# {" Z5 l8 g2 F2 C- k]6 C) P m3 o8 v a
let credibility-i-j-l 0$ X R" V/ g, h; v: t7 W8 H; s
;;i评价(j对jl的评价)
+ P: y+ ~5 w3 O {. v+ }3 r, Ylet j 36 T9 L0 W" {( G/ k2 z
let k 4
8 D- T7 G) F9 n1 h4 P3 R8 owhile[j < trade-record-one-len]
9 {1 _+ X7 j* s/ \3 l0 x[- N, {# Q! [4 w+ Q3 i
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$ m5 Q# G4 E8 O' Y+ M
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)
; P0 W' g6 @& Uset j# n( A1 m* X# B# k( I: D P) _; p
( j + 1)) X3 m" K; N0 |# v( a( B
]
; `' r$ }6 k2 h: d& Y6 j. ]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 ))
- q: r+ a# l; C* ~. E/ M( q+ r
, e" \9 }% I" R8 K6 ]9 M5 l2 u4 k1 Y ^" d
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) z5 l0 h( R4 P2 O3 U0 M;;及时更新i对l的评价质量的评价: d4 B7 t9 ?" c+ s
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]/ G) x, o" y7 N4 i3 ]
set l (l + 1)- b7 I4 i% a" X3 C# `
]
0 @' \* s6 Y! s; q3 G: pend* f2 G. {, c& c! G0 ] c
, X, m8 b. x7 C+ I3 P. O, s
to update-credibility-list
1 x1 u% W" |% W+ r. xlet i 0
2 U v4 A5 Y# u: G9 b: swhile[i < people]( K$ t+ N9 R* J; ^% I' I) f
[& P/ f* K, P2 g7 s/ {0 L
let j 03 ]# s1 |; |# b
let note 0
: u. c4 I9 e* qlet k 0
+ i. \( p" O. x" }) [;;计作出过评价的邻居节点的数目; f; J- j; e" S; H" g3 {) a
while[j < people]7 P! i4 q% E/ A3 A0 T7 L! d
[
& w& a( j+ I( H' H% c% L- A3 ?if (item j( [credibility] of turtle (i + 1)) != -1)
0 M! `$ B& v, ^9 \;;判断是否给本turtle的评价质量做出过评价的节点
! s. N5 K- U6 L& z[set note (note + item j ([credibility]of turtle (i + 1)))+ }: Z/ u9 j5 q; F \$ S% q
;;*(exp (-(people - 2)))/(people - 2))]
. Q4 t9 E6 k7 o5 |2 S1 v- Q8 dset k (k + 1)
( o# V6 L6 w6 E& U7 u5 J]7 y& h* b# Q) v* |
set j (j + 1)
2 w2 o. @) V$ C: K" X]7 y9 v Y# T) c, Z
set note (note *(exp (- (1 / k)))/ k)
/ `2 I Z- X' h# ?set credibility-list (replace-item i credibility-list note)
' e9 \( l$ D' Qset i (i + 1)! t. @, z& O. e9 j
]
$ F3 n1 B J* Z1 k) B1 S6 bend
s4 i+ k6 x1 s5 b- U5 X$ U# m% L5 I7 n4 Q6 X
to update-global-reputation-list
8 B1 T0 f2 S. C' x7 L7 u- N2 Ulet j 03 O2 S3 Z6 p4 {* W3 I8 J, {
while[j < people]
3 C: r& r* O$ v) b2 F[5 B8 Y" Q8 z% k( Q H w
let new 0
# `, B% n5 \, t$ y( n+ };;暂存新的一个全局声誉
3 H6 z/ s$ x/ x. ?; D5 dlet i 0; m) D! f' p# ]9 |6 i1 {8 N
let sum-money 0
: v7 |8 f3 {8 K! Nlet credibility-money 0 C/ f* ]3 V9 g: d$ t b6 q
while [i < people]7 ]: g3 A# _. ]
[1 n3 `7 a( @. ^3 ]# S
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 O' E6 l( V1 `6 f: @- }7 eset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
- v' I3 n* N3 u$ sset i (i + 1)
% X5 o4 m. J! }, n]1 t. ?+ v Z* d6 Z7 ~# u+ u+ E k, m% K
let k 0
8 ]6 A2 y T8 B; A# A3 ^/ p9 ylet new1 0, F5 B7 y4 o9 y G
while [k < people]
4 @# d9 w1 k# X; k7 C) v0 e- L[- F: m1 [/ C8 u' O8 {8 N
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)5 t; `" N6 Y' A9 S2 G
set k (k + 1)
" }+ G% G5 l. E" Q]2 L2 D) y* l N# m
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ( M: J4 c. q! b
set global-reputation-list (replace-item j global-reputation-list new)
4 o+ ?# ?+ ~, ~5 g2 a/ l. l" v Mset j (j + 1): {% p" r5 P0 M! B& I T
]
% v8 B& I u. P- ]; eend i% X" u# q* J B% g
; B" C# Y9 p% N& ]
5 k9 q! _5 v! Q
2 Y0 H* U3 I' a+ d
to get-color
( B X3 _. t8 [& O
4 w0 s7 M f9 P( F0 mset color blue
5 D2 u e/ q9 _- R5 N- Send7 ~# M& R) n" M7 T: x% j( W
3 M G, ^0 g* M" [* A
to poll-class* ]% C9 p0 Q8 W9 |
end
! y* u1 D) L: k' y0 M9 r
" I- C1 S& c( |9 p! _, K5 Ato setup-plot19 T l4 ^$ [: v: k+ F2 o/ V' O
- p% ^+ M$ V& y! A F
set-current-plot "Trends-of-Local-reputation"$ W+ ]7 }; g& ?/ Z; u3 T
# a" E4 [3 m. o& [
set-plot-x-range 0 xmax4 K) C% u5 ?# I- l' N+ d9 T7 d+ o
6 @9 A# H" c2 w/ X( i( U7 pset-plot-y-range 0.0 ymax
8 @. X- w* d1 C: aend: i/ v5 s8 l0 t: ?1 ~% e+ Z
! c5 Q3 N0 t6 ]$ Z2 Tto setup-plot2& P2 y, F( Q( U. P* r# ^( `
( U9 {: j/ Y5 r. h( |3 X0 T
set-current-plot "Trends-of-global-reputation"
. i- Z9 ]1 S) I( ~( V- N6 z3 M# ^6 v$ o
set-plot-x-range 0 xmax! \+ q% ?6 V7 m( w9 f
/ g# T& T! ]7 i. K* v) C' H; ]
set-plot-y-range 0.0 ymax$ E5 ]8 f J" ]# U: o; y F
end0 U" s: j; Y, M. X3 g8 Y4 N _% f/ K
8 ? V* e. O5 C5 n+ M
to setup-plot3; ]( @6 N U; u3 d$ ^- `1 _0 K# n
: B1 o) o, T9 [, w1 v ~! `- p5 y
set-current-plot "Trends-of-credibility"
5 x- ?1 r' \0 K4 r ~! q
( C+ n$ k& @% g, d. k/ Xset-plot-x-range 0 xmax, O: ~# C+ z9 B; i1 @7 Z
% R7 B: d6 j# T+ ?: |
set-plot-y-range 0.0 ymax
; Q7 e2 w Y" Y' W: dend
* ^2 p$ ~. r0 j* o% E; u, V) p9 ? o0 E( a" t0 K5 `
to do-plots2 K2 @4 d( `# Q" k8 v' }8 B+ i) @
set-current-plot "Trends-of-Local-reputation"
/ @- U' a( }# W; p) i, {, Lset-current-plot-pen "Honest service"
* y* N0 N! N+ o% p- E) n0 oend
% B0 h' I; ^ |# [: I) T5 X* {0 g; j% N7 j% D
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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