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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8 a- s3 M7 V2 X- S
globals[
! d: M5 d8 t0 mxmax: ~4 Q4 X6 t D3 N1 N# L
ymax
6 S9 I0 Y" M Z3 u# }: H& L# Cglobal-reputation-list7 k8 j c3 f. Y* r
* y: ^& e, S: X# G2 Y
;;每一个turtle的全局声誉都存在此LIST中 R9 m6 x6 R( n
credibility-list) Z% B# h5 n& x+ b1 r! ^
;;每一个turtle的评价可信度6 Q! w0 v% y; B0 B9 @
honest-service* ~' g; q! b5 ?0 o
unhonest-service/ w+ k: u- R5 `2 E, E% J" ]
oscillation
. e! s( r- e9 x( _* O7 Lrand-dynamic2 r8 Q- r u- I! z, o
]2 p$ }0 _2 \" H: h7 z
) Y! ?! l' x6 [
turtles-own[. g# ^# O v# w% n
trade-record-all5 y1 u- L3 W7 B* v$ R
;;a list of lists,由trade-record-one组成
9 h" O8 `. W, W% Dtrade-record-one
2 S; p6 z; s% y! ]9 Q6 B C$ b;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录' N* I/ L2 [7 M, [) j! N
, B+ o3 O3 T3 a$ G;;[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]]
- l9 h6 t' e' @/ `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]- i5 ~3 s9 b8 r' P
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
w( o! i' J3 V3 _neighbor-total* z; q1 U C8 Y. E7 n) l
;;记录该turtle的邻居节点的数目3 u6 j+ U6 D5 b2 L3 e+ }0 Y
trade-time
& q( ]- Y- @7 \" l n$ o& g; g: t. |% q;;当前发生交易的turtle的交易时间
! O1 ?' g: |* t, Eappraise-give
# L! G H- u! |5 ];;当前发生交易时给出的评价
" w0 N" E% D* [& e% h% D% J7 mappraise-receive
! X4 o* N* |0 U0 C* E$ z;;当前发生交易时收到的评价
- U I, v' }3 A: {appraise-time* a5 r: p& D4 z! W/ k: ]; p; I' b
;;当前发生交易时的评价时间
% s1 s) \" x$ A. Qlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
" B. P8 Q' H. Vtrade-times-total
3 `3 C- Q% l3 J% t( E5 H& E6 ^" Z;;与当前turtle的交易总次数 B$ M; Q$ |" y% X& b$ h
trade-money-total
' o' ~4 u7 m: q4 J;;与当前turtle的交易总金额
: d5 u4 r7 u. ulocal-reputation
3 U8 C) `% k: j2 Nglobal-reputation
. f5 ^" Z$ g% L" r( q( acredibility, e& x6 Z7 o7 X' Q0 K! F
;;评价可信度,每次交易后都需要更新
: Q6 @) _9 X: C2 ?credibility-all
9 f5 M4 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
: q3 V0 ^5 p E9 Y
) h0 E3 [3 B# u2 Q" {8 N ?;;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
N/ E" k _2 W: l9 e3 j- Z1 G; Y- Hcredibility-one
2 {7 _5 @9 f4 m;;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8 f% e7 t- k" t3 w6 e( Y, v# H& l: b
global-proportion
3 R7 m: g/ ?; k2 u0 _customer7 `% z+ @% e* ]7 o4 E
customer-no
$ z: M, {6 n$ I# H9 f _trust-ok
$ `- @$ F; |1 e* `; R- L% ltrade-record-one-len;;trade-record-one的长度
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3 p4 @+ E* b+ [8 q, H G4 P; ]8 `" T# A" @7 P; R+ B+ S! U
;;setup procedure
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to setup
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6 j. r. m5 O3 C7 |. w& n5 Gca1 W1 [. Y9 G1 M1 @" c
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initialize-settings
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2 i4 y& g+ u2 Tcrt people [setup-turtles]
7 `4 Q% ^4 j# u; q @- Y
. X; q- a+ o( V: ~reset-timer
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: ?. J8 G& k- W9 s+ l9 hpoll-class
2 l/ t7 U7 H5 t5 L% W5 q* y! ~ v. P. i# E: l9 i* n/ j* w
setup-plots8 p. ?- m) n/ }
! ] Z* P- _ Z3 ]" Z/ s4 c9 s% Vdo-plots
1 j( g' r$ o/ X2 H! ^0 U) B5 L3 Kend
0 U" p' t `7 j) ` O& e% D6 X- r M; Z8 Q& A- w" H7 ^
to initialize-settings
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set global-reputation-list []
6 x7 u. J& ]: S) _- H; v0 E1 N
# d) B8 B/ y) M8 Lset credibility-list n-values people [0.5]1 \8 g" Y# `) V7 k0 Z: @! t! N
5 N* i/ C; o: \% v$ xset honest-service 0* q/ Q" [ t, A1 h
, ?7 _. A3 U* V. ]; F# U4 Qset unhonest-service 0
/ [7 R( o5 l1 n8 [) @
1 c3 P- D9 V0 o5 x: Q6 B% ?' Qset oscillation 0
" J4 i0 K" Q& k/ A: M8 J, s1 E) z
set rand-dynamic 0
- i# E/ ^+ x, \end
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to setup-turtles " q4 Z* y% M0 |( q6 B. j, i
set shape "person"
4 p+ B# ?0 t7 C+ fsetxy random-xcor random-ycor
' T+ c2 o2 _ h! |# Z- Xset trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
4 b4 j: p7 y4 L! B* K8 F
3 z$ Q* E, ^7 x Q8 e4 P; o2 Kset trade-record-current []. U J" a# J9 M+ U: X
set credibility-receive []" m G5 o0 @* a- H
set local-reputation 0.5
: P$ K0 ^! S0 ~ ?0 w% Kset neighbor-total 0
. J( E- \2 a0 [$ \set trade-times-total 0
" N8 n6 `9 t+ U. Z( {" a! ]set trade-money-total 0
1 ]! Z4 V, U+ P3 E: V+ mset customer nobody
7 J0 |$ x) r) t# i" `, X- p7 mset credibility-all n-values people [creat-credibility]
# p _% V! E1 A4 M6 M3 W' i; J5 Hset credibility n-values people [-1]) D3 u. o3 H/ @0 l- L7 C! R
get-color4 V+ h- f( d0 z* Y
2 t, ?& r1 T( t: C' Z6 `
end7 v( f! M. s0 J' l
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to-report creat-credibility
3 ?4 `/ M# S! |5 }2 S% ]report n-values people [0.5]
3 \) @& U9 V, Y! ?. n5 Cend4 e S+ }5 K8 n& x% a$ P, }
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to setup-plots
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set xmax 30) ?) w0 `# W7 v% o) x3 r
) T. b5 l2 U& c, b8 aset ymax 1.0: x9 t! O: u- e" F0 L
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clear-all-plots
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setup-plot16 j. m1 j1 j% U; \* W& E
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setup-plot2
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" D9 B2 O/ M" d) y( u1 m% }setup-plot3
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: a& b" k- f, v& M: u2 `4 r
;;run time procedures
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to go9 f1 h3 |+ s7 ~: I
6 F) D d" s0 Wask turtles [do-business]
9 B3 q+ F. A" x: cend
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to do-business % _/ @, A+ N( e$ I; K
5 w9 B5 l& L7 E( V
# J2 {9 Z5 g7 h! L- prt random 360! _7 l2 P7 Z& I
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fd 1
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0 V7 j" J6 b9 s# g3 X bifelse(other turtles-here != nobody)[
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- @" n. U' }7 \8 }# Vset customer one-of other turtles-here
. {% H6 c( V5 j' T ~) Y# N% b& n8 P& S0 q8 }, P+ |% e: L" Q
;; set [customer] of customer myself
% [" K. y$ k3 }- o7 \! D! }2 [) D8 A
# l! X! O1 ^- A" K% m, k1 e8 G2 K7 jset [trade-record-one] of self item (([who] of customer) - 1)
& t- ^; q! y. T: J3 V7 x[trade-record-all]of self
2 o! {. e0 ~4 {/ C1 r% m9 M6 H;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) i0 n. u7 Q/ C' K
1 l0 @, p/ U; b# o! rset [trade-record-one] of customer item (([who] of self) - 1)4 k2 w! X7 Z5 L$ A' L5 k
[trade-record-all]of customer3 |1 l) _$ o& w- U1 N9 T b6 k, ]
# Q& Z& s6 F5 o% |% J- I. Kset [trade-record-one-len] of self length [trade-record-one] of self
u4 ^3 @5 ]' @+ s5 ^3 @# N/ H6 b/ G& n, _ P
set trade-record-current( list (timer) (random money-upper-limit))
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5 ~2 @1 I$ P5 m5 f7 Sask self [do-trust]' `- j9 F8 t/ x8 m3 y7 k
;;先求i对j的信任度
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3 G! D/ t' [4 f+ K1 \3 T5 D, Bif ([trust-ok] of self). G# k/ [4 F$ B5 W' |
;;根据i对j的信任度来决定是否与j进行交易[
6 T# _. L- J: A+ K5 r: @9 kask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
0 r4 R# e3 p3 \5 O! m: Y( @4 I9 l' }8 s' L& V# ]
[$ X3 a, Y9 P* l0 X/ \) x+ L
2 K8 M/ y8 _ K2 w: Udo-trade$ j, U% j+ i2 Q) }, B% m; y- @
c& F: B7 H) f
update-credibility-ijl
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update-credibility-list7 G" \0 v. ^ j0 z# b* O' G
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update-global-reputation-list x. Y- M7 N' x2 O
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poll-class7 K9 p; S. w4 H
3 w- S' _% X1 s( Q. }get-color
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; G2 f B1 l. Q4 X" z/ @$ `* i+ Y]]
2 A" K& [4 N+ y6 v1 t! q* u
$ J) K ~, L; B0 q8 o2 B0 i;;如果所得的信任度满足条件,则进行交易; g$ s& s q+ R/ D7 {4 N
! s; N8 Z8 [' s* {/ ][
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8 F8 l; D3 F- ?5 e3 A5 l/ trt random 3609 C u. Z; k2 E; N5 c
- n) W% @) u" O+ K# ?* D: \fd 1, [ f2 L$ z9 S+ O' O" O
3 q F8 ^( L! k; b* ]" h. l]
& @/ P/ M# v0 x0 u! \- }4 `
2 p# ~3 r& Y9 ^0 o% y( B k0 t5 h% M( yend
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to do-trust ! W# M: h, ?$ k9 ]3 K# I5 z( {
set trust-ok False: o+ ?& T$ g# v9 u n# N; _
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3 \7 p2 H6 b9 s% |5 a: llet max-trade-times 0
/ f8 a7 ]6 P F' ^) o5 yforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- k/ k8 r7 R6 ]7 R
let max-trade-money 03 |' |2 l, H6 J/ K7 n
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 m; M# J2 J# _3 j. f
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))( H1 W. }3 e/ _5 }+ u, V" V
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: `1 L9 x% e7 k" ^3 u/ l
get-global-proportion
, ^+ X% |+ e2 Q& N. V$ I/ H; Alet trust-value; d9 A& j1 N6 |, O7 S, p
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)
4 G% x$ _3 \. m3 Q$ Fif(trust-value > trade-trust-value)
, e/ c1 _/ v2 i3 R% w[set trust-ok true]5 _6 n! }5 C3 r- K! g. D9 i
end
5 M$ U, [* M8 [8 F. f# o4 M4 `0 P3 B
to get-global-proportion) T# v. x# }& h! a$ g% M
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
8 H8 f8 ]8 `! m8 z4 V5 l[set global-proportion 0], G- z0 u) P$ B3 o/ R1 m! X
[let i 0
+ S6 }8 H, }. G$ b3 t( Alet sum-money 0" K0 V+ ]& E# W+ @. U; S
while[ i < people]
" F: f( x; C* I, W, c5 g[# r, j+ ~* O, F
if( length (item i
; g, u+ R* `( Z5 F- p3 y) C[trade-record-all] of customer) > 3 )
3 E% G' p1 ?9 h, x3 ?7 e[
/ K% D8 P' q+ c8 f& o5 q7 F3 Sset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
* N1 a ~3 {4 j8 H w]
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! l& v; v5 o4 ] `; Y, |# @let j 0; a) k+ P r( N
let note 0# y9 g7 S0 i+ u
while[ j < people]' g; u3 a/ O( C: {# T1 e8 n5 {
[$ n0 j1 n: H" ~4 O k4 y8 g
if( length (item i
8 S) i2 B+ ^( j1 v/ y[trade-record-all] of customer) > 3 )
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ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)' h' q* m# e1 {, ~; V5 a4 M! b
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]( V& J1 a" i) r. ^
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]* @( W& J' [+ F; |0 u! b2 J# I$ M
]$ [ ~0 [8 `3 Z8 j8 j. G
]
5 f% }* x. A6 t oset global-proportion note
+ }$ C9 q3 u( Y) Q0 F1 p4 Z]
% C3 Q# _' A" w: c$ {: p" Q! R( @end3 o/ M& C; m8 a
" |% o3 [! X# @to do-trade/ G7 X/ ?6 q- U- [1 G6 [5 y" r
;;这个过程实际上是给双方作出评价的过程# Q1 q x* g0 N4 n9 p! K d
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
2 |# b4 A% I G" M/ p: n3 w3 uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价- U5 N0 y( i7 Q5 w+ Q6 z
set trade-record-current lput(timer) trade-record-current$ v/ [) X8 u M& f( a+ c
;;评价时间
$ [# [$ y4 S9 }. @4 Yask myself [
1 g1 |$ `8 ^ F: _# K0 U# |/ aupdate-local-reputation( y0 L* E W4 X: g% t8 K' a% }! @+ \
set trade-record-current lput([local-reputation] of myself) trade-record-current
( C, f/ D9 k/ G: h. g]
# j* C2 R/ i9 h) W) h+ B/ gset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
% X( L8 h6 ^* y8 q& }" t;;将此次交易的记录加入到trade-record-one中% e, k c, h C1 c. r
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)9 w, m+ P0 s: n, n
let note (item 2 trade-record-current )
& v4 \( _4 w8 _+ l* Z- ^9 ]set trade-record-current
, R$ o) y5 Y/ v# z- D. H( L: I I(replace-item 2 trade-record-current (item 3 trade-record-current))
% c4 c: M# F& f+ xset trade-record-current0 V: F+ n2 X3 W3 B% J( a, _# C
(replace-item 3 trade-record-current note)
q( H- [3 `; `! r9 ~
' B" y( S- d) ], l
0 R" J0 a" g H9 W7 i& A; o, aask customer [
- W( j# ^1 f# O& W, h* N2 Aupdate-local-reputation$ d- |# v4 M) G' n, p
set trade-record-current
0 }0 }8 X" L0 U$ E( P(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ( n1 b, z9 Z8 x I1 W# ?% t
]
: Z. m# Y. `! O# I7 h# C/ T; l+ P) l' m, X" I0 l
0 y" M7 L, Z: T) l6 ^set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))3 q# x! b( o! Z2 W0 S
;;将此次交易的记录加入到customer的trade-record-all中' t# I- g% v1 y
end
5 A9 W9 L- C, V/ S) T5 t+ r( Z, `3 Q0 V( p, R$ v- d" F
to update-local-reputation
, H* I, H# p+ J! s% @( Nset [trade-record-one-len] of myself length [trade-record-one] of myself
$ S' y# g4 L; t1 q. i, x
T/ t7 s" R; J1 J9 e+ K w& @% l) b& A& S' f' h
;;if [trade-record-one-len] of myself > 3 0 g/ z( g; U4 U( ^
update-neighbor-total# M; L1 Y3 \+ g6 X# I1 g- d
;;更新邻居节点的数目,在此进行
- e" O. B# z: k& I$ O: C) s6 glet i 3
% ~" q. S. H8 F( Y' ]% |let sum-time 0
1 n2 O% }1 M% @& Xwhile[i < [trade-record-one-len] of myself]6 L6 G8 R1 N0 V
[9 h, S; } y! \( U( c- T
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
' a" b3 Y$ J1 q* v- ~set i
( `: y/ M* r8 H) U, ?2 ]( i + 1)
/ O, }8 p8 {* |; u Z2 o]
# Q( L- E2 g& f1 }, Ylet j 3
' t5 _! a5 o1 r' \: r* F% @let sum-money 0 k% w" ` L" q4 f
while[j < [trade-record-one-len] of myself]# p2 ?! ]8 G- f- `
[3 ?$ ^: u- F3 l5 s7 O X
set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
6 o1 g9 s' r' S/ m* dset j; @, [9 F4 q1 V* X$ ~
( j + 1)0 \9 _( T3 s1 N6 _) e1 t# Y0 |
]
! @; K z' B4 f5 F5 ]let k 3% Z. U* ?: `2 ]- S# x
let power 0
# f* Z5 d. ? v2 n9 ?* zlet local 0& s' U( F3 [: e& A; s" o
while [k <[trade-record-one-len] of myself] j" a% B5 Y( T; }
[* B ?0 k5 f. H; L- J0 p3 e
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)
7 L c! q! j" p# L: Gset k (k + 1)
, x: E; I2 s( l]3 e s0 h. I% y c6 K1 m
set [local-reputation] of myself (local)1 B! r; Y. n J; D
end
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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) ]
$ n$ M+ t* L) C3 c
# N9 ]2 r, e& k* B( R! x, B0 V9 r3 @$ x y8 s- D
end
$ U; X8 D/ ^8 @0 {6 G" W) R4 Z( ^7 g) ~ x$ n- @& g) J: Z- Q1 }
to update-credibility-ijl
2 ?! |) o% |; k+ \( H
! p; o8 _5 F8 L o( {% A;;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。
. | T1 \+ u1 dlet l 0
9 S! C7 H6 S9 n$ Fwhile[ l < people ]
8 k: G4 G7 M( a* \4 d;;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5 b- M$ P# Q" e# X I# K S- ^
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)" S5 R! ~2 ]& h! a
if (trade-record-one-j-l-len > 3) A& d. y9 V9 I# h, @- x8 h
[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
: y. O" V. ] R" Y% s) T4 Hlet i 38 B5 S- _- z8 y. @7 J
let sum-time 0! A; R" `( O" k6 L* _
while[i < trade-record-one-len], w* C& `1 \9 R* D# o+ J
[
* p. I8 @4 S. F& W e" zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
* C* ^: R l& o5 O- A/ B: h: Qset i
: S% ~' z1 f. L7 B, m2 _( i + 1)$ W8 c* {! w$ L. G2 N
]( R" @( u6 d! E1 C
let credibility-i-j-l 0! J+ M W9 E3 n, u
;;i评价(j对jl的评价)
; i/ y5 J% m% c5 h) ?4 olet j 3( R8 R4 G9 J0 t2 v) W) l
let k 48 m" c- r3 q( B0 y( i: 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
( y8 B6 u! Q' _: b6 J& C6 l2 nset 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)/ W- J/ O) T" Z ] X# L4 V
set j
+ Z" J) S/ |7 d, k, c7 m* d( j + 1). I0 Q0 S2 D/ S T
]
% N! ^9 R `" c* Qset [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 ))
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$ i3 Z( ~2 f5 @# ?
6 d1 Q: i% |; tlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); @6 l( j. j1 i1 N4 _6 b
;;及时更新i对l的评价质量的评价* q6 S0 |/ {4 t: k1 L/ m
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]1 j$ K; q7 z" o: u# s8 Z
set l (l + 1)5 K7 x+ c1 S/ f- D5 h
]8 L; w" }" M; |6 O; v, M' x
end
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to update-credibility-list' U5 v# z. m9 i3 t$ [
let i 0
: d4 v1 r/ Y0 s: m7 p% v2 Ywhile[i < people]9 W. m" ? C9 j* [& ^% h
[! R8 N" D0 }" \2 f# m
let j 0, d4 h1 v; x! @: \, m D
let note 00 e4 ^ t- J: c; Q+ m7 W! {
let k 07 _- @8 H* \1 I- Q+ u
;;计作出过评价的邻居节点的数目- p9 G- ]% g& l9 ] |- l5 f! f
while[j < people]% y+ S1 O( Q7 l5 [7 q
[
& h4 s/ F* t5 [- }0 O, Xif (item j( [credibility] of turtle (i + 1)) != -1)
' g1 {% a2 O7 Q1 V) \* P# o;;判断是否给本turtle的评价质量做出过评价的节点
4 i0 q( v9 L1 v; l( F `[set note (note + item j ([credibility]of turtle (i + 1)))& P$ Z8 [3 E: u, W& Y% X7 e
;;*(exp (-(people - 2)))/(people - 2))]
" \5 l& H) w. V: {- dset k (k + 1)
/ N2 I$ R4 E1 q& z/ S]
/ I O8 ^) t" `% n: @' vset j (j + 1)
5 }7 X% V$ s- N" e]4 F. l8 P- X. A9 v T3 Q
set note (note *(exp (- (1 / k)))/ k)6 Z5 A$ ]6 C; n
set credibility-list (replace-item i credibility-list note)& Z0 j* Z( M( v( b9 j" f) Z* Y; V, H: ]
set i (i + 1)9 M+ E. O3 ^4 `, [9 J: V5 Y1 q
]
1 ~# |8 {1 }% q7 z$ M3 R/ Iend& P" S j4 c1 [" `( W% ^
& h3 v f- L; x7 U- @to update-global-reputation-list
6 J3 T' |2 W0 c; H. U X& Q" Hlet j 0
3 l% e6 z% N9 r: r. Qwhile[j < people]5 F6 @& c* H2 ?) n
[# ^: n j }1 Q1 k+ o4 U. r3 Z
let new 0
# O$ y0 c# E2 j a! A7 A1 N;;暂存新的一个全局声誉* E+ n7 @, \; }8 j' W! F2 P6 G) K: U
let i 0( V. q; u1 O& ?
let sum-money 0
0 M7 u; N) E# _+ A: c+ Glet credibility-money 0
* Z3 _2 s! p. C/ t1 [while [i < people]8 D9 L: J: z! T7 r$ e: V8 F* z
[
, I$ @8 J; f0 Z6 [8 I0 D5 Oset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))7 W7 `- t, W; \ [
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))6 |$ l3 @4 b1 @$ w
set i (i + 1)* G& `7 L" ~/ b6 X& S7 ?
]
& d) p3 }. d; T [0 `let k 0: k: `0 |/ r+ P$ @, C; B
let new1 0; ~* ~5 @9 [: H) ` u$ }4 M
while [k < people]; p6 I! j0 x G; g% r" F2 R5 M$ J
[
! `/ U, {0 F a# G; R% {. yset 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)9 q. Z' q6 M% K y
set k (k + 1)
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( ~# h" P& q8 V* Dset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) u( b( o# m3 L3 q/ z, {1 o
set global-reputation-list (replace-item j global-reputation-list new)
% H2 G" G$ M0 [1 M F# `8 tset j (j + 1)
) ]; F: R: K# D) ]$ y4 m]8 I2 `6 E3 D! v4 c& z
end# C1 b$ l% _7 h5 @( w. B, K- a
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; N0 Z! {# a1 [. b Q! {0 }0 Y* r! S% I) ^- E5 A
to get-color
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5 w8 }: W' p0 R O4 j+ i0 {set color blue
& G" w6 M% @& k6 E0 gend( Z' Z' u1 z+ l( p
1 o, Q' j. [6 D1 t, I8 ato poll-class
+ {1 f3 Q: C8 Rend
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to setup-plot1) O* J( ] b% j' s! R! H
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set-current-plot "Trends-of-Local-reputation"% f* k% L7 L( R4 Q1 B: p7 A! ]
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set-plot-x-range 0 xmax5 j) k. b h C) j6 l0 t
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set-plot-y-range 0.0 ymax7 }0 a1 G. p: g
end. O6 y* |8 ^6 G4 L! W
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to setup-plot2
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set-current-plot "Trends-of-global-reputation"# C( }8 h7 \- a8 y1 I* f; c
2 H9 r% x: K6 S8 w b* F6 s! K* `: Fset-plot-x-range 0 xmax2 Z) x0 W/ m# ? f! i( y# A& r; a% F7 Q
5 \# L6 F$ Q6 O& j: ~set-plot-y-range 0.0 ymax
" Q( R+ E8 g0 p- F4 y1 F1 Z8 wend' }% ?0 i/ b! e% Z+ e! k
$ p5 a8 O! \8 i. z6 n/ Z
to setup-plot3, r+ \5 c4 f) q8 e1 ~2 ~
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set-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax, {- }: i" L6 u L9 Q. _. N+ M
end, ^3 Z4 W, U+ o- E8 H5 |0 c
7 b, K T. i% D5 o) R
to do-plots
! _( T7 l! p5 Y* f& @& _set-current-plot "Trends-of-Local-reputation": N) u8 U4 T" }! J+ j
set-current-plot-pen "Honest service"
4 i( |- f7 ^ x9 }: p9 e& @& Gend, S6 G+ D7 s4 P
/ G% a( b0 S# {7 l$ A3 a[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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