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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! ]/ s- {6 A" Q9 }
globals[/ J3 }8 y1 Y$ C) D! q9 O4 z O* e; e! X
xmax2 C4 x0 w3 h1 s- w5 s, I
ymax; K1 b& O" z: o. f
global-reputation-list U S+ q# l, J. @' W3 F. k* D
+ h8 c, S$ N z. C& _;;每一个turtle的全局声誉都存在此LIST中( Q5 Z$ j, |. u# v( u) O
credibility-list g* X b" @# a- X4 t
;;每一个turtle的评价可信度
! S0 k( p4 [6 Vhonest-service F2 z5 |& M( I9 `% a
unhonest-service7 E. o. I& b6 d0 y8 h3 l7 e
oscillation( A3 ]6 V2 B2 A: Q6 Y
rand-dynamic
, n/ M7 w i3 Q# x/ d. a" b]
2 o% a- [% l% U4 C4 }, ?; L, z! D; {/ ~4 E @8 H: n
turtles-own[3 K, t# N) E+ L$ E/ @5 u
trade-record-all/ J) P3 i; Z. _* d# v$ A( D2 S
;;a list of lists,由trade-record-one组成% {% z3 o) W6 ?: F N/ t
trade-record-one" Z/ y' U6 j0 D6 Q7 m$ U
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
8 o: `+ r" F [ B& u6 @6 c' V$ R0 }% w+ s" _1 v
;;[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]]: Q. _3 y* L4 V+ x7 h& f8 i
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]
/ t; y5 S9 c% \; t3 y( Q" g7 p" 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/ _: b) s, Z# I8 F
neighbor-total
0 b: o0 ]: L( J- Q j c;;记录该turtle的邻居节点的数目) K) v" g! A: e8 Z1 a! R
trade-time! ~% j7 k# P3 x; F
;;当前发生交易的turtle的交易时间2 C0 u' C- t! ^# R
appraise-give
4 O6 |$ R% u6 R;;当前发生交易时给出的评价4 w0 ?% A/ h" V
appraise-receive
3 ^/ L; f, `. P$ I8 K* V6 l% p;;当前发生交易时收到的评价1 M/ w8 C# N) w. _+ M6 @$ r& x8 ]7 D
appraise-time! C) t0 c3 ^# [5 x9 y
;;当前发生交易时的评价时间/ J. L4 q! q* z
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
( C, C+ N9 W+ x; strade-times-total
6 r3 D0 l, o7 G" N# h$ j2 O;;与当前turtle的交易总次数
8 b3 o/ w, Z, K3 itrade-money-total0 g9 E3 O' [: D
;;与当前turtle的交易总金额* Z3 l) ~3 c4 I- j$ z$ }8 a
local-reputation
" r. }' Z$ q& Y; L$ ^# D! q& Gglobal-reputation
2 u: s: o6 t; B+ l" E2 m) Fcredibility
* N8 O! p9 I& G* \;;评价可信度,每次交易后都需要更新
' ~ ~$ P4 h! w3 |' ncredibility-all
$ U; p) V. X% F, z: X* _1 k" W: ?5 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/ |( X) O5 @* r5 J
" Z) r: j' Z) } U;;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
+ e5 [% B' n2 I1 @5 Acredibility-one
A1 j( J" k' [! ]$ D b9 R' a2 ?;;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% B5 `% m" k5 o" B5 E
global-proportion
" k" e1 ~% u+ O7 q( Y1 Rcustomer
. X& R' _2 h+ B- dcustomer-no
! `- ]: l+ t4 }" U( Q" }4 p9 xtrust-ok
8 J$ B+ ^# a; v# b3 s! {9 ctrade-record-one-len;;trade-record-one的长度4 d }$ S% p3 [3 u! s6 w
]
3 ]- n; D6 J9 a, F/ g1 E2 [; m5 j. h( g: O! B
;;setup procedure4 p S1 V C ` P
. h; m0 K; \+ q4 H1 H' Nto setup) c1 k# N* p% Z/ D& H# C% K$ K
9 e4 S; ]1 X O% B5 ]! v
ca
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( H0 G6 Q8 S) l' \initialize-settings
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crt people [setup-turtles]: Z* [; B7 e! M; R8 c, Q% ]
: K2 U0 `" ^, ]' z& |reset-timer
$ U$ c) Q" w6 ~4 m! U
1 J# Y# i. k( D% W' U9 Y- dpoll-class
6 e% F8 u- X7 u `& S/ e* M) ]
) G+ c1 J' |, C ~: psetup-plots
( ~9 |3 h$ m6 b+ k$ a4 G( q- ]: n! }" C5 o$ [9 C( ?* @$ u8 f
do-plots, {, S0 [6 t+ y: D# [# H& f9 n
end# l4 S; W" n" [5 M8 d
8 z4 w6 q2 J' h9 Vto initialize-settings
5 K7 g9 _+ m+ Z. f, C7 C1 @+ q
3 ^; v. q) G; |0 }" `; w. v0 Nset global-reputation-list []
3 s3 J2 U1 c4 K
9 C: h2 Y+ R. r7 ]1 Kset credibility-list n-values people [0.5]8 m, J9 T6 q1 l0 v/ g+ l! v5 x5 b- J- l
2 V% e/ x- y* P+ Dset honest-service 0
5 e% z8 X, {7 J! P( X, t
, \/ @- P+ p9 \! X( m/ [set unhonest-service 0
& P s/ M, z$ l( M+ h& j/ \
: h+ a4 h- j/ h0 M* Pset oscillation 0 l1 ?; v8 Z3 l9 d$ o7 L/ J( m9 m
8 J, M1 p! n% @ T |
set rand-dynamic 0
4 ?+ P4 G7 G t0 \2 s3 Bend
$ L$ \) W& U& K# u4 n
7 n- Q' M$ \! ? y/ oto setup-turtles
0 u0 E8 ~! |/ a/ C; rset shape "person"3 {+ |) |! p8 D/ x
setxy random-xcor random-ycor
2 F. h: m! \% ?1 y+ h0 T1 P) Zset trade-record-one []
% X8 i/ T( M3 i3 M4 f9 F; _5 e: |6 M( O& X i- V4 o- d# `! R' `
set trade-record-all n-values people [(list (? + 1) 0 0)] & q' n' v# d" [2 V/ } I" p
1 [, x! t9 w# o
set trade-record-current [], K+ p T2 i) M' |$ q/ Q& h% G
set credibility-receive []* S& s8 ]0 J1 ^/ X
set local-reputation 0.54 S' @* F( P* k& A4 h, c" Q
set neighbor-total 0* N' F$ l9 a1 s7 t
set trade-times-total 0
" H: P7 H* {* G( T# Wset trade-money-total 0
0 N, w* z( P' Iset customer nobody- ^0 R2 G5 F- b- K) i9 a1 |. v
set credibility-all n-values people [creat-credibility]6 N; Z& ~& E# ?
set credibility n-values people [-1]
c: \- I/ c# n% R ~ z: d( C: mget-color+ a3 O& g" q& |5 {* A
! ^9 n4 h6 e! p* L$ o
end3 i1 {) X" T, P1 Y! D
, ]' y, b# @# U6 F: V# }5 v W
to-report creat-credibility& G9 r) R2 r% e, S4 U! X. i
report n-values people [0.5]
9 m2 N5 @+ ~; r0 ?3 nend
7 C5 C) l! ]( \
! k' _3 n( D; S9 `9 c$ Lto setup-plots
4 n) Q, I) B' N- D( k
- @7 x- }% }! z1 j3 V7 M! K \set xmax 30
. V% l; q/ e* l- i) _* v+ Z2 o9 J
set ymax 1.0
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9 L3 @. q0 i8 U2 f& w. Mclear-all-plots+ \. O5 v2 V% c4 N
9 W. |2 L3 C/ e2 J+ j
setup-plot1
|9 H, }5 z" z6 N3 ?
z u$ ` e! _& U; G; Fsetup-plot2- J# |+ [' e6 U6 p( o* q+ P( M: M
# X h% R/ g& g0 \
setup-plot3
" J. r0 f% t3 a5 Nend5 {4 b8 O% x2 [$ o+ G7 V
$ s& ~7 @9 _" `! ]. d1 _; C;;run time procedures0 y6 O3 Y- \ j0 ~
% e9 h9 @& t* _& J, ito go
T! L8 E' L7 v1 j* ]3 s) y4 Z8 }' p- z; I( ?4 ?8 ~
ask turtles [do-business]: o' ?/ ]/ L; \& \; |8 _8 v
end
# k! R, f2 _" F% L
$ D7 G2 j! F6 ?1 O% H. L: dto do-business ) g: t" s; U' F5 l
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3 d* I/ |) h0 H4 X8 W* L
rt random 360
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fd 1
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ifelse(other turtles-here != nobody)[" A/ N6 Q1 |" P) m( }
k) z5 E# ?$ u3 M0 c0 {set customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1): T: ^+ G1 U2 Z: o; Y4 L2 D+ p4 V
[trade-record-all]of self$ W6 D9 Y, i! I. N
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self* V }6 M% t# {
+ v8 f0 y( ~% T4 g5 Z+ q1 Z
set [trade-record-one] of customer item (([who] of self) - 1)
5 y/ [, m/ f a' V% c& b3 _[trade-record-all]of customer
7 s( o$ Z* U/ Z3 Y# H9 x% v. ^. e d/ o
set [trade-record-one-len] of self length [trade-record-one] of self4 [! p+ R" \* r& ?4 {' \' f( D
$ X+ d" s* A8 }+ E/ F- {9 f6 ~set trade-record-current( list (timer) (random money-upper-limit))2 P* a: v% X. t6 P1 _" A& h! g1 [
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ask self [do-trust]) t7 J/ s9 A b) i, A5 K5 N% y
;;先求i对j的信任度
: x0 h; m( N `) x$ O
X% F. I( Y* n( l& f2 c2 Tif ([trust-ok] of self)
2 w1 n/ n* y! v0 H3 u;;根据i对j的信任度来决定是否与j进行交易[7 l3 u9 Y4 \: g/ D3 I2 t
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
+ p$ c* Z8 h$ I" x
, d. }2 A3 m. S" J2 q8 Q$ G5 [' K[. H5 {% b: G% L7 ?+ l3 ~
" Y5 F- Q1 r" Q6 W% V
do-trade1 \' P" |2 O4 {/ v% ?
% h- u: x, ]/ y. E. J3 s
update-credibility-ijl
]9 d/ H/ r& m7 D Z0 _9 `
- \. y4 o. |/ h: J- _6 Q9 w, Lupdate-credibility-list
+ U: I) g: M: o) z; E) B4 t$ u2 H- Y4 u* G3 N
$ R M) i! a5 E# zupdate-global-reputation-list3 `. M* G' u4 d# n( z( l, X
! N5 {% P) I% y8 l p
poll-class
" M4 b6 F/ k3 W' \1 q0 d* u
- h0 X2 O" c( v2 E) u3 V; f6 @get-color q' b! m! d: m$ T" v v
$ G: `+ h- }: K! R! X' @]]
0 f; x& Q& i' N7 }5 q
2 H6 f3 R! D6 {) a6 o+ q;;如果所得的信任度满足条件,则进行交易
* N5 d, R9 y5 I' T' _9 A$ S4 x# ~2 q3 {0 k
[% R0 f7 ^! y' S9 g2 ~
' `' X9 Z2 I4 m( S( g' {* y
rt random 360
5 Q* r2 { q0 h0 [8 k9 a# r3 H- m, h% j' C# r( o* k" |
fd 1, ], J7 P" H- d! ~( g
U: P$ i2 D/ g& I1 n; D]2 ~1 i9 r R; Z3 L) i" o' X# \
' b" q7 p4 k: v9 Z1 s9 O' J0 Mend# |7 Y8 S E9 F1 Z% ~( |
% Q: X v$ a) {% bto do-trust
+ R. X: O: s. }set trust-ok False
7 M/ S1 p! @: K% ^( w' A. H/ `
9 H% P/ b- y; b& R
1 j8 i- q. U5 M4 olet max-trade-times 0
4 t% z! @) h6 N( @( S* b2 I+ jforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]# A9 V1 z4 k! M" J0 {3 u. E
let max-trade-money 0/ N8 J2 V; H- v$ }
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 L5 r$ \9 m: m+ A+ }
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
0 U1 [6 Y! `# X
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get-global-proportion2 G6 ]3 I0 P5 x% Y+ b1 R& M0 E
let trust-value0 h( N! I) f2 X6 E# g
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)1 c) ^. p) G3 n1 O2 l
if(trust-value > trade-trust-value)
0 X3 E ?) S ?" T# f[set trust-ok true]4 o+ c. K: |1 V% U
end
8 ~, }( w" [8 ]
+ e$ F& J5 {: H6 n3 b kto get-global-proportion0 G' S6 s$ b* M8 q. \% Y# B
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3): g3 \* z4 {4 t* r0 }
[set global-proportion 0]( q2 \& r, @2 Q8 j
[let i 0
7 R& c( w* l5 T' u! _$ Hlet sum-money 0
! f: R% E" A6 w3 L: Ewhile[ i < people]
" J0 l! M5 D8 s2 q; l' [$ f2 D[
. v. a( W6 E& yif( length (item i; q0 C' @, ?& r6 h! K
[trade-record-all] of customer) > 3 )1 t1 i, @5 x/ q% y* Q( \$ H
[
2 x6 d) ^/ K7 r. N" xset sum-money (sum-money + item 2(item i [trade-record-all] of myself))0 ~ \# P7 p5 \- `$ i7 `
]
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! t0 n4 Y! E6 ]3 N( f3 U olet j 0
" h7 X' y8 U/ J4 z" M) }let note 0
9 }% n9 U, J9 h4 W8 swhile[ j < people]
|+ m2 c4 D: R" Y) C1 M[5 e/ [0 j( l4 u. V: E/ p
if( length (item i- y" f/ l" X* }' ~. W! @8 p# A9 O' k
[trade-record-all] of customer) > 3 )
) q( |8 C U l5 K/ R[$ ~6 T5 {; P6 E- a
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)+ l& Y4 c4 H/ d: w, Y @* F _/ I0 V
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]+ c! @2 p! x+ O3 D7 {, j* K. m! |
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
! I9 L1 h7 b/ i& D% n0 @]
" c% ^) Z7 H) O* \]
. o X# {# f8 z" Uset global-proportion note V E! W/ l3 }) a4 g1 r% y0 s
]
0 a0 j" i: y1 W9 a o& Y3 e$ j! u, oend# ]. v1 X0 b" _/ L
9 W) Y/ N5 j' |3 e) lto do-trade
2 v2 \( r8 e9 K7 k5 x! f;;这个过程实际上是给双方作出评价的过程' `3 y( t# {2 F/ r/ X C, c+ B: m
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价- c) d) c. i0 @. ]- n7 u
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价: p* \9 ~2 m O+ y! Q8 `: m/ |: a( m' z
set trade-record-current lput(timer) trade-record-current
8 g2 O3 C2 y4 d9 B;;评价时间9 K) {1 Q9 X: T& B" q4 e& P; u# M
ask myself [
+ l% ?* g1 P1 a: hupdate-local-reputation: V2 t8 M% b: Z$ k) @2 k; a
set trade-record-current lput([local-reputation] of myself) trade-record-current
& }9 \& ~ f0 O. l [8 m" a C]
+ w" q0 W5 p+ _5 R: g0 P4 pset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
* y4 W0 ?( ~0 i) x;;将此次交易的记录加入到trade-record-one中
4 k6 L4 g5 H& C- o) H! N0 b* \+ ]3 Dset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)5 o$ r5 N, p; {! x+ e
let note (item 2 trade-record-current )
$ s1 J' f9 R( x) p& l, oset trade-record-current2 `, V/ t4 X" `8 u
(replace-item 2 trade-record-current (item 3 trade-record-current))
0 D5 K2 }4 @) d0 H) s0 T' hset trade-record-current3 t( D* m2 @$ v" `2 B) @- B
(replace-item 3 trade-record-current note)! J, g6 W3 z. ]* G
" w0 F- D- Z3 v3 v. n" F. `
- _$ F" [5 ~* w' C" zask customer [
/ ?+ ^1 X' j5 ]) _update-local-reputation( ]/ n( a; f9 V0 r
set trade-record-current4 P: e1 M# m; s
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
5 P6 R& v1 ~6 y1 _]; C; m& y. ^+ S
/ _+ Q0 ^9 w+ P; f$ [6 B! P
- m8 l P1 v7 x+ F7 C" }set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
5 C9 j0 F4 ^, m+ N- A+ T9 K
) n- i) r. ?# N# L' B6 d ?# @set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)), |! Q8 C9 T, \ {1 m
;;将此次交易的记录加入到customer的trade-record-all中; t% q2 a1 s5 N* N6 ~+ p6 @
end. p- }$ N$ h+ d3 l. ~: k
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to update-local-reputation
' k, |+ F5 {* |6 q2 Eset [trade-record-one-len] of myself length [trade-record-one] of myself
6 q/ n# c4 [: K! {( \
9 {$ G9 E H; l; B
; o7 ~6 X1 }3 ^% X. J Y8 w! s' t;;if [trade-record-one-len] of myself > 3 1 x$ y# r* }3 O' {- S
update-neighbor-total$ B i" Z L, ]$ \
;;更新邻居节点的数目,在此进行2 F) h" F. L. `' L- r* V
let i 3
" X3 @; p$ y# K* @4 Slet sum-time 04 ]2 _5 W }% a5 X+ s' o8 k" U
while[i < [trade-record-one-len] of myself]
) h q4 K* a# {[
( U+ b4 O/ o! i; _0 P# M7 b ^set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
( l8 T" c) n1 o- sset i
6 V0 R8 C0 C: v7 L- P8 n( i + 1)
. ^' j. g) U F$ r4 F8 J( ^]
* G' c6 z2 e8 ~; I e8 Vlet j 3
7 J! ^/ b" S' J+ V/ Blet sum-money 0
* x6 v2 {! M: Vwhile[j < [trade-record-one-len] of myself]% X3 q6 T+ ~) n* m: d# z. [: L
[+ a/ |+ l- J& n* }3 c
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)
/ u4 V8 ~; d. _: Fset j/ ^* e4 q5 C) D" T- R* Z
( j + 1)
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let k 3
: n# @4 u" r8 |9 U, d+ dlet power 0" R2 L+ N) j9 @* L6 }: |3 t4 L
let local 0# J" A8 d( \0 u2 @; T. y+ z
while [k <[trade-record-one-len] of myself]
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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)
+ P, Y$ e, D2 Z% B; T4 w O! I7 ?set k (k + 1)
% f6 J' K D7 b* Z( F9 m: y& U]8 K1 o. U R5 d1 L+ S1 j
set [local-reputation] of myself (local)
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4 `4 ?) ^6 F: Z! J3 M
( E/ D+ u6 c2 C% k# K5 R2 Lto update-neighbor-total6 m! a3 ~0 ~3 \' T# Q% X
" _( e3 `+ Y$ T7 z. l! P" G; j5 dif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
1 I4 i8 H5 x5 }- G: [
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8 S/ [9 j1 v+ f- c9 M9 Zend: t& `& j. ~' B# w( X
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to update-credibility-ijl
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) n" z. [' {: q K;;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。
) I2 P" a/ k1 T7 ~' N4 ~8 elet l 0; {" h7 ]" T Q3 F9 p% c D
while[ l < people ]
0 e3 \! @7 Q5 @& }# {- T* ];;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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' U4 [8 S) w8 g" r, o: |let trade-record-one-j-l-len length item l ([trade-record-all] of customer)9 y+ I7 O( N# X; k3 A) B' d3 w
if (trade-record-one-j-l-len > 3)& Z$ m( Z; j. h! Q2 [- J) 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
g6 p1 U+ R9 l& h/ j0 \let i 3+ P9 V, T0 q v* ^: y2 q/ M! f
let sum-time 02 h+ e5 r& C1 e9 ?
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )$ U4 `* n2 z- O3 p
set i- o9 h7 Z u2 ^- t* J- J
( i + 1)
$ _6 X( m8 l( S# r1 ?]3 |8 _& F5 W% l1 n3 q% W: G# K/ y
let credibility-i-j-l 0$ p' f. o; G+ `* X- V# l: T
;;i评价(j对jl的评价)' U+ H3 i& Z1 f
let j 3, C1 U9 c1 p; w
let k 4
' y' J9 l& l/ J+ W, O" |while[j < trade-record-one-len]' p; w2 I6 w" E
[
6 O) a7 t: x$ |9 p7 \8 }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
) m" M. T8 J% t6 cset 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)
% q0 K( v" V0 ?; C: O% N" Zset j
5 e, J& U/ J7 ~2 D/ ^3 r4 @6 f( j + 1)
/ {" U+ x3 N) ]; t]
- x7 N- E6 Q' d& b1 L. Aset [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 ))4 N5 J7 [% I1 U) i7 _2 `9 N
5 @/ m2 [* }$ O; \
; I( k) w- W, n- K
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
% k5 }0 X0 y" e2 x% d" \! F;;及时更新i对l的评价质量的评价
5 b) q# ^1 F0 g, F$ Pset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]/ N; P* C3 c1 h
set l (l + 1)) K8 A" |9 s* y, R9 S: {/ [
]
) r2 g& {7 t: S$ U. q) [1 eend
; l0 M" {; Y! ?: c5 {& ~& K4 s3 h: q6 n* E) M
to update-credibility-list! d1 E' Y& X. `6 n0 u& G4 S H
let i 0$ P, O' t1 k% T* H* f8 U6 z' N
while[i < people]; L" c8 L) y) X# v
[
# ^, R+ G! ~$ P- x, Z+ `5 Klet j 0
; j+ B: @3 i& Y7 U" Blet note 0- i3 z0 c7 q0 V
let k 0
) E x# V6 a0 i* t5 h M) d( m6 w* {;;计作出过评价的邻居节点的数目
5 R4 x3 G9 J2 h3 B" swhile[j < people], e8 a, A$ x1 c; a" L) x
[, n. k0 B! ^+ Z3 q8 Z0 G
if (item j( [credibility] of turtle (i + 1)) != -1)+ ^, ~4 `' q( A5 B$ ~8 F
;;判断是否给本turtle的评价质量做出过评价的节点- K+ H: h0 a" t& l5 j7 x
[set note (note + item j ([credibility]of turtle (i + 1)))
" d7 m( p8 ^7 H) I$ o;;*(exp (-(people - 2)))/(people - 2))]4 {0 ]. \ V2 q6 Q
set k (k + 1)
1 |1 v2 O9 O0 {- \6 f3 s- P2 J! l# {]
. R9 p @6 b& }set j (j + 1)6 D: N/ r3 y5 {+ V9 r' _+ o
]. j! _+ \" G4 P# P
set note (note *(exp (- (1 / k)))/ k)
4 t, X( c, @7 W& w( Aset credibility-list (replace-item i credibility-list note)! K8 \/ o& _7 J v
set i (i + 1)* t7 C2 p7 a% Z! ]: C4 A# Q! M
]8 @; h1 E8 X% `4 u+ ? r
end
( S" F4 Q$ R8 H& n' ?) ], g7 V3 Z! s
to update-global-reputation-list) V" x) F) _. `: Z1 g! ]
let j 0! K6 ~9 w( ]" `( A1 ~
while[j < people]
! R9 ^& `+ O) g& o# J1 @ O2 F[
4 j3 }: r1 e* F9 Zlet new 0
+ e0 O1 r2 P7 p( s4 a5 K$ }0 C;;暂存新的一个全局声誉
. K" O7 u3 p( z4 _9 H6 flet i 0- \6 E2 q; b" |
let sum-money 0
+ Z l/ S/ X" c: h6 U& zlet credibility-money 0
( x( Q' \" b" X# G* W Dwhile [i < people]) S$ d1 {" {6 G
[ a5 j3 C9 h p. o, G) a
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
' M1 t) p( w. Gset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ g. f% b6 J- @9 w- \) H0 }: g4 D
set i (i + 1)
: y7 @+ R& z- `$ @9 A* L/ ~: O9 k3 W]! c- E9 Z2 L: V% o2 L
let k 0% Q0 c7 ~) g6 j* T3 I! s% E2 V% U
let new1 0
O5 c; A# W Q6 N; Zwhile [k < people]
# Z3 s9 P+ t+ i( I[
: l* o- Q i, y4 x; N0 B V- kset 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)% V7 R7 `% N4 t: ~
set k (k + 1)
' h! v9 [4 d: v7 C" h' |* F1 _]
+ \4 I/ L) O8 h% A! j! |5 t0 h# nset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
: \1 W: J/ o: n7 H# [set global-reputation-list (replace-item j global-reputation-list new)
3 J( Y3 O" D$ D+ _ zset j (j + 1). e- y" m8 W8 Z' c; `' d
]
0 f/ z- {8 P% y& ~* rend% v# U8 k7 q* T% M
/ e% v! S$ [" U7 ^
# R! z" s7 D6 @( m. E7 L! o; }( }1 T5 [( k: L
to get-color
+ K0 c4 W) Y) u& y' _7 j, R, N7 @8 T0 _% A( ^# z* D( U$ s
set color blue4 s- U6 s- }( Q/ J
end) x- Y1 B, l4 W8 A9 {: h$ ]
- m, x/ |" P/ y" }6 d) j2 lto poll-class4 K5 G9 p; `8 G- l2 j* @
end/ f& X D1 o" ?5 S. \
1 l- z r* @" g
to setup-plot10 Y8 v& b4 @% Z; c" t
( [# J* X' w9 x. d/ r B X( ?4 \set-current-plot "Trends-of-Local-reputation"& g1 O& `# p- N" J1 e) H i
9 k& P1 ]6 h" u' Hset-plot-x-range 0 xmax" F; J6 |7 m( r3 t$ z3 V
( `& l( k- j. Q# q+ Oset-plot-y-range 0.0 ymax' K' q5 l, O0 M. F
end4 ^: E1 l9 a$ H' U0 j, L9 q
B9 h7 ` h% [- s& [5 `. d+ t' z/ mto setup-plot2
" E2 `3 \7 Q% ^" F7 }: h- P5 U- b5 V8 o: n
set-current-plot "Trends-of-global-reputation"- _3 n, H5 }/ M- U7 w2 h
. l) P; Y, \5 i" I$ Z: _set-plot-x-range 0 xmax
% }6 I# z! g, G' ~+ K$ H3 N2 b$ g, f" S( C
set-plot-y-range 0.0 ymax3 p( I4 K. `7 ^# Y ?) P
end
6 i4 F/ W* h+ l; k t) _% v) [" p1 c! s! G8 ]
to setup-plot3( Q, t$ n N. @, m
( }4 D0 N, s# ~1 `0 w$ Pset-current-plot "Trends-of-credibility"% f0 X0 _" E+ j" [8 k9 g
1 a, Z+ Z" e$ d! h0 G& tset-plot-x-range 0 xmax3 R- T1 q& _ ?& K: e7 q
* ~' a% ^8 W' o
set-plot-y-range 0.0 ymax
* | z! q( I h+ m9 s' Oend
! d/ u7 E! U( W, R6 O$ F: w# t1 _' o+ h) y4 X
to do-plots
' O3 a" L) d5 Z9 n0 ]set-current-plot "Trends-of-Local-reputation"
' q- |0 }( j/ Y* oset-current-plot-pen "Honest service"7 Q$ m* j. w- n" b- h
end
7 B! s: t) |5 x, t
1 W+ b3 r% n. Z# E* g" a[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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