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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" A1 u! d0 z4 X5 H9 x/ e8 N0 J
globals[2 n: u8 I4 z k2 v/ B( N+ r9 q
xmax
6 ^( d& n+ D; Wymax, M. d9 [* W" c5 `' A e. J" `
global-reputation-list
( ^' N! m0 e5 u' ^% l) c: ~0 K1 D' f( D0 T7 `
;;每一个turtle的全局声誉都存在此LIST中! G& p5 Q$ E+ |2 i
credibility-list' q: B) ]2 c2 K2 x( O
;;每一个turtle的评价可信度* ^9 V: c p+ B7 q" n! X
honest-service
8 o( Z; v2 V& i/ G0 l9 ~' Kunhonest-service* u8 E9 j4 z' b2 a* z u
oscillation7 H V- J8 ]+ @' d; l
rand-dynamic( f3 W4 p* N& W4 W* D2 ?4 I
]: L4 S h( ?, Q7 D, ]
8 \9 g$ v3 i7 |8 k3 k' ?; s' J
turtles-own[
+ l+ V6 V$ d, r, Mtrade-record-all
/ B: Z! K8 { }' t m( k;;a list of lists,由trade-record-one组成. R3 F+ p" O$ a" n# ]
trade-record-one o8 _/ t5 g. a5 G0 S' h' ~3 r+ s5 \
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录1 f7 a- c: b f _* S
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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]]
8 D. H) n6 t5 N- Utrade-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]6 \/ @. q) [- P& i# G- D) s7 v3 C
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
- G/ _7 R4 x! i0 [6 w6 o& _; Yneighbor-total
9 q7 b6 C- [* ^! l7 }0 F) _;;记录该turtle的邻居节点的数目
, y9 M' e4 r8 E9 O/ x* Ctrade-time1 A6 b# k/ x1 T( {1 ]3 W; x
;;当前发生交易的turtle的交易时间
+ ]# Y( X2 \: M8 _1 c8 u& T* {appraise-give( K2 o9 r% X7 R, M' `" E8 d6 @' X2 c
;;当前发生交易时给出的评价
4 s i8 M0 _ w- o0 R$ ~: p: Yappraise-receive. T; j/ b( z5 J
;;当前发生交易时收到的评价
$ K, K: ^1 @9 P0 M: ^" {$ Gappraise-time
9 R9 G: O& S/ n9 {- l% I;;当前发生交易时的评价时间$ P( e$ _; |6 C
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
0 |9 T+ P# P! y7 `% d/ ptrade-times-total
, d- q, w+ c% m" g- S;;与当前turtle的交易总次数
% J& I' L/ u( u+ F' l0 L& i6 \ ]trade-money-total) k3 i$ z9 s1 b* @3 M1 x$ k8 Z& b
;;与当前turtle的交易总金额% H7 ~2 {+ X- Q% R! U# x6 @+ ]
local-reputation. g4 `, g3 I1 {; X3 [* i0 |2 a. x
global-reputation" n2 J$ @7 D" N; L6 ]- ~
credibility
; b+ J I' m% E9 q;;评价可信度,每次交易后都需要更新
4 n) t, g2 Z- M9 g5 Pcredibility-all
2 H# ^: q' D; |' i" 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3 e( G) [0 s8 S# ]/ r" U" Z
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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
* z& z! P' E; B; |+ X7 R$ H8 mcredibility-one! o+ o) e3 _% G0 B" y* t
;;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: l2 n, I `' _, A% l0 `
global-proportion, {) X% ~+ N2 }5 Z
customer6 Y# E# _5 e2 h; j4 P3 l" n
customer-no7 j2 |- ^ ], A- D
trust-ok% ?( o" p3 V1 ?$ w' G: h; |
trade-record-one-len;;trade-record-one的长度; f$ y1 R# @* j9 ~0 W
]5 Q% ^" W* B$ \- e3 K/ R, P
3 i4 B: ^5 _7 P% g
;;setup procedure
, t# c. t# k% o% j, g) y
+ G8 o1 N7 \; s. _+ \' ~1 jto setup
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$ V& d/ q; Z1 s7 O7 `3 U: Z; tca$ q' n3 N7 n/ U+ f, i3 r
+ j) p3 e4 t# g2 H$ {3 v3 K
initialize-settings- ?% V$ q6 a3 Q g$ i8 r
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crt people [setup-turtles]& R) e! g5 K4 Z* D. s& N$ c' I$ D
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reset-timer$ t5 U$ k5 ^6 X! x
" O/ ? N3 ~6 u, Z4 w+ x+ K" Mpoll-class6 a# c; O4 x; }# `5 h9 y \' ], [
) D+ U1 Q8 o% C# ?. @# usetup-plots* u: v- n' I( o, j/ q# ?
( ^& J% z8 B7 N6 w' H+ b
do-plots
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to initialize-settings) p& e1 L3 O$ `; J( Q( r2 k T$ V
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set global-reputation-list []
9 T$ b+ h2 q: T" i! h) \, z' B; T
8 v4 M# B8 N1 Rset credibility-list n-values people [0.5]
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set honest-service 0
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. G9 G- l0 ]" h5 D( hset unhonest-service 0' A3 C1 A- ^1 P, y
% n$ f" X' B+ y* Nset oscillation 00 A! p, O. b6 E3 g
, v. C" f3 d4 j) V4 jset rand-dynamic 0
5 _: s6 H" Y1 Y. _2 Y0 {end
, ~% o% ]0 x3 J
, }/ O5 |1 `4 \2 z( \9 o; dto setup-turtles
9 y% d4 g- e% lset shape "person"
% ^3 T3 i% y% }2 i" ]+ ^+ c( N6 Wsetxy random-xcor random-ycor+ v. Q5 N$ V+ B9 T! r: o
set trade-record-one []
& `0 p0 v, s I/ Z
) z) P* [* t G- p' J" [set trade-record-all n-values people [(list (? + 1) 0 0)]
6 }9 I/ d0 j. ~ [2 ]
2 R; g3 V) ?/ z3 n' Lset trade-record-current []
% ~8 V1 V( r/ ]- S- C- E2 ~set credibility-receive []
5 X( y. o: s) a2 Y4 V" Bset local-reputation 0.5
# `) Z7 m( E" a: N \) d0 ?set neighbor-total 0
: m% d. ^0 X7 o( ~! Yset trade-times-total 0
) A# U1 ?% _' a7 X1 Jset trade-money-total 0
# r0 r9 g3 Y Fset customer nobody
o% W$ U( t; J; a! p% u: wset credibility-all n-values people [creat-credibility]
0 J1 T* \2 I# l# \$ |( D. oset credibility n-values people [-1]
8 Y5 p x: Z4 h T, Y+ x kget-color
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1 n1 M3 F2 \3 q( pend
9 h7 T3 y7 k3 J" g3 D4 w* D2 _% c7 u' w: ?* T. I+ S1 u2 `
to-report creat-credibility, ]6 R4 V4 D2 X7 x1 G
report n-values people [0.5]
* Z- ?; i _8 w7 ]end R9 |4 }6 e; l R. S2 r7 {
* n1 N- D- Q4 V. S7 n( K8 p
to setup-plots
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set xmax 30. T! ~+ c& ^; M6 o7 b$ {
+ O# ]* n8 M: {2 wset ymax 1.05 @0 ~8 f u: v+ o
8 i9 @- Z( _0 hclear-all-plots; B+ x, X1 k9 B4 j$ }
# @3 ]2 D. E6 V/ ]0 D) ~setup-plot1$ `+ }; [- _$ Y% d+ @
" o3 I( a7 D* v# E/ xsetup-plot2
+ C7 u6 l6 p! W) H$ x
. J, ]# d. l* Y0 N) d: Z: ]5 I+ {setup-plot3
7 L3 G4 `3 ^/ Y0 s1 R, m! cend6 K" d) j; {: W
3 r! W$ T, q0 \$ i;;run time procedures0 W% x2 ~/ e, N. p' q. g
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to go
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' }0 U+ w3 h% `* e" q$ wask turtles [do-business]+ d) _3 t3 L( |8 G+ C) ]8 _* \5 ^
end
& q4 K7 G. E) j1 o& r0 l9 p' m; `8 ?& T& F. U6 O# r
to do-business
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: y/ b& Y% O8 U8 f( g) \$ X4 O6 _' N: B6 H+ A, u9 Q
rt random 360
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# z7 y( E8 s3 [fd 10 x' C$ h% ]' ~6 e; n( d. K
e7 a1 |$ ^0 C' E
ifelse(other turtles-here != nobody)[4 f- r. L& K3 B& K3 t
3 V+ e: b1 ~+ I7 A9 _" qset customer one-of other turtles-here4 {2 P0 z6 z7 |+ B' n
$ P! c" N% U6 V4 z2 u;; set [customer] of customer myself+ `3 h- B! l9 |. J' j! w
9 n: a6 `2 u$ A: Q8 \ C ~4 wset [trade-record-one] of self item (([who] of customer) - 1)
# f8 c4 ]4 N2 q+ K) i( ~0 [* K/ a[trade-record-all]of self
+ b5 F+ q5 n& [;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self/ K+ r' w G% x* c% m
/ e W) b7 X/ Q \' b. Z( p
set [trade-record-one] of customer item (([who] of self) - 1)
; `1 m8 r, }2 h/ `+ x3 g |1 D* d, d[trade-record-all]of customer# h Q# w. Z l. [& _- s% ^8 f9 n3 R
. j* W. l; u' j" r0 T3 ]
set [trade-record-one-len] of self length [trade-record-one] of self% b! t, a) ~" d' j0 W
: G4 T) W7 W& X5 V6 b i# Cset trade-record-current( list (timer) (random money-upper-limit))9 h; b: Z6 z9 V6 k" V/ W% J5 `1 S
" i6 Y# i; G0 S$ aask self [do-trust]
# c8 E7 [) n. w7 t, H9 ];;先求i对j的信任度) F5 l8 s/ { E( `% z
9 w2 y) k# G) Y0 O/ p; n
if ([trust-ok] of self)
3 S% o# a1 K3 S$ ];;根据i对j的信任度来决定是否与j进行交易[
3 p- ~+ } C! s: f3 |8 vask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[0 c. i. t2 w+ F x
6 u( E# v* j# n$ U. {8 x
do-trade& B, {2 O6 Z+ q6 S
8 c8 p1 ^2 o9 S, Dupdate-credibility-ijl: g7 \( Z r" _$ Z* L8 u
9 q8 C1 h N6 ^update-credibility-list
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+ a* D) L+ |/ e! m' _3 U \, z. r! \! I
update-global-reputation-list$ K, f& {8 A# A% j/ m$ o" ]& _
8 K5 Q0 x7 C" B+ [& S, lpoll-class# @6 }- x/ f2 O$ [2 n
( F I0 t% ^2 G/ n
get-color" Z4 L, ]0 q. ?8 m9 }# U5 G
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]]
% u9 a( g, a4 }4 M6 y q+ L3 K2 i& J# W9 p! Y
;;如果所得的信任度满足条件,则进行交易
5 k9 u% g/ Y% U9 l
* P5 W8 F+ b0 b- p[
% g, s8 O* C1 [7 K$ `& H, Z/ y
rt random 360
: D2 M/ Z' a2 Q! D, y3 r
0 O% k# Q" O' N0 K% k9 V' efd 11 b) n, y9 O5 |: t r9 T
" x, Q- \2 D7 O" k$ u4 q7 F
]% P! w# ^3 X8 B1 a. ^) J
& t% h* r) N I4 i0 P2 U& }end5 C3 d9 \; [, _, r U9 R. R1 c
& W. U6 j5 |2 i* {to do-trust
' }9 g! }/ `4 W0 \set trust-ok False$ ?* f" l; G1 \, X* S2 _
- i* k0 h- @4 l% ]. G- p* \3 `! W$ b
let max-trade-times 0! S, [) {2 ]9 E2 m# J1 h
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
7 p0 u9 \7 [/ \; Dlet max-trade-money 0
$ g/ K8 Z+ |8 U% z0 G& ~7 D, ^, jforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]7 z% a$ z" [# k( U
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))( ]+ X+ c; ]/ U2 ?
+ O1 B! T9 R2 e6 o' M) l6 N1 P4 `0 @
get-global-proportion
& A4 G* L4 X7 }. _let trust-value
) b! R0 K }+ r2 `2 i9 O9 vlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)! b, }- Z& F( R: i. Y% @
if(trust-value > trade-trust-value)
. | H& [! r5 g[set trust-ok true]
) E$ J1 F+ p' x& h4 n/ V' A% u( b2 dend6 ]6 p: h2 {5 B' G: U' z
" G6 P3 J. {# Y; o/ N
to get-global-proportion
6 m# B; H5 j2 _5 nifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 k) ^5 g0 m9 j/ ~, F[set global-proportion 0]. H) E' m* c2 o, @
[let i 0" b) O: H/ T" S1 w0 C) C5 |; H
let sum-money 07 p1 l# J5 m3 m4 I' S
while[ i < people]$ b7 G: v6 x! Q7 l+ I0 p
[
1 D+ e$ N* \! c4 }) v! t1 Oif( length (item i6 D# a$ N( I* d- y
[trade-record-all] of customer) > 3 )
! m) c- G& o8 ~( x[
8 Q+ w& b* A o$ q: v4 i) N: Fset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
: U% V# N3 ^& X# W$ z]/ s) S+ K2 X% N& H
]5 v7 O8 ~" M8 Z/ k
let j 0# Z$ y- A, W* H9 G4 }
let note 0
+ u; m8 C/ t/ P( o5 n4 ~, Nwhile[ j < people]
6 O& U5 H% u. J# ~[
) C# K0 k8 I2 u8 sif( length (item i
$ S3 r% J! o/ A9 W; B0 b9 c[trade-record-all] of customer) > 3 )- [9 b, ]8 C0 j, Y" K$ o6 V' W
[
+ p8 N8 a" \! Z+ f0 F7 R- P: g9 J6 _8 Sifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)6 S5 S/ m% r; N7 c( |% I+ L, g
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
; y8 R( o# V4 S& _- E7 }, J$ M" }[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
7 i; Q% e: p0 A]. q& A2 j2 A$ [: u1 v% P
]
$ D9 K4 b% C7 z/ P$ o$ Kset global-proportion note
" U$ p I1 ^: n, N# O5 f]
" E, _$ @2 M" _1 d' _end" u0 Q+ N7 B; S% a- K" j& @7 b8 ^
# T, C1 x! q( V' Oto do-trade
: A+ L1 y) s$ }* }4 b;;这个过程实际上是给双方作出评价的过程
' `: Z% [/ i! Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价/ q* |" h5 {0 C0 q; P0 n
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价" [, b3 X! k2 t9 W' e) \2 ]) g
set trade-record-current lput(timer) trade-record-current
' k8 f6 d/ i, t3 g/ D- m, a;;评价时间8 |5 e8 u/ D/ s9 B
ask myself [1 A7 E s- O( ?0 U) |& Y
update-local-reputation
+ k: J+ t. w- K) `, rset trade-record-current lput([local-reputation] of myself) trade-record-current7 @3 b' c1 q, l* g4 ]
]2 j: @& P2 |. z
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself! z) S2 N( A8 K
;;将此次交易的记录加入到trade-record-one中
) D* N$ ~4 @, c7 H$ Jset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
& U5 ?2 [3 ]5 o; [let note (item 2 trade-record-current )8 C3 A) q! S/ k& o5 t" r+ d7 v( D
set trade-record-current' R1 X1 a H5 a) w' a3 k5 o
(replace-item 2 trade-record-current (item 3 trade-record-current))( w a: p' U0 V* s0 f
set trade-record-current1 M5 H# ^7 S9 L8 s- H+ v" `
(replace-item 3 trade-record-current note)' A6 `0 v3 I( {
& l3 X" [1 Q0 S$ c9 w" M0 a/ E5 e! t
ask customer [/ h+ D! H' E" b/ H0 v- f
update-local-reputation- ]! ]& u& w" k9 J7 \/ \. b' U/ I s
set trade-record-current$ Z4 i6 ]6 W6 ]8 P
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
. P' I; D4 I/ _/ f]
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$ c( P% I1 ^) [+ u& Vset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
4 s0 f& Z! H) s' ?! [* p. c1 S/ N Y) t) N5 d
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
' P g0 X! a; P. }; d, q;;将此次交易的记录加入到customer的trade-record-all中
) E# V6 o, G* zend
9 z6 g7 ]. q" U1 W# v) Z% h
- @0 m7 q6 o; e9 E9 p) sto update-local-reputation, e S0 X3 M7 f- R" Y; u% ]
set [trade-record-one-len] of myself length [trade-record-one] of myself$ Z( ~% x) G _+ {
- _& t" ~/ l2 x; p. s o; T" j5 k
- {! @8 c k- @, F;;if [trade-record-one-len] of myself > 3
* d, q: t* |" W5 B5 v4 Gupdate-neighbor-total' q1 b# O) D8 P% F1 U
;;更新邻居节点的数目,在此进行
8 A% |9 O) V) @2 \. l) Ulet i 3' m" Y( y0 i1 n, E% e+ W% B4 S
let sum-time 0
2 g) E0 x4 e# G5 s0 I6 D* e. {while[i < [trade-record-one-len] of myself]* W+ N2 D' R. m2 |0 x
[2 O3 \" F1 H- P% Y
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )* a4 r* j0 B: V1 R7 }! H
set i" d7 q0 p, D6 v0 l6 w7 \2 }+ e8 Z
( i + 1)
2 ]* w( t6 S/ V: i4 g& r d. f% o! G]( p% W) t% o7 o! O. _/ n
let j 3
) i$ K& }) ~2 d) c- A4 d( `let sum-money 0
! ~6 Z0 ] C$ G) r |+ [while[j < [trade-record-one-len] of myself]
1 t( b5 c) Y6 |# F' \[
: I0 F( G3 }7 O% Wset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
, X1 a( F1 b9 s; L( mset j. g; E% L* O6 \3 T6 Q
( j + 1)
; [) s ~, G8 _1 _, N+ M6 b]. Y' }4 z' m4 Z$ m# d
let k 3
( x% |, V, E; y/ Flet power 0
6 \- C; p5 T" o+ Klet local 0. {$ t1 ]- ^4 d8 S4 _1 ~9 C; E
while [k <[trade-record-one-len] of myself]
$ ?7 b) h6 \4 }; l* `0 j[
/ I( N4 X; n" Y1 `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) / t+ b2 a- A1 A0 ~
set k (k + 1)" c" a: I8 R6 r" f/ O q) }+ ~ L
]
- x3 X) `. k* w1 _set [local-reputation] of myself (local), @/ o- B0 z$ t8 n
end
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to update-neighbor-total* `& [' E1 G1 c! [% u/ m/ R
% @5 d# B4 K- Q8 K
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]3 X% ?6 s! s& N, W; ~
- b; @1 W. _* _/ N) a7 B
& Y" q+ a' D& @end
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to update-credibility-ijl
4 L& `% C7 D/ @: [; o9 s
7 d: E3 b5 { ]9 e1 W;;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。8 Z7 ?0 k' X. ~# P( a9 D6 `1 B. ^( l
let l 09 A) v4 O1 x1 G$ e! q
while[ l < people ]
& @7 X0 d/ x9 n0 W! K;;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)/ L1 W& ?! e' ?( b& R
if (trade-record-one-j-l-len > 3)
7 |" ~% S9 T4 k) ]6 I, m[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; R* [- K) q; c* x' S
let i 3( r' e( B, ^; e6 b& J9 L
let sum-time 06 s Q \! |9 f9 J8 q5 M$ N3 L! ]: T
while[i < trade-record-one-len]$ b, q! v }4 \+ ~. Q
[+ k: t; \7 F. K/ d
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )6 i- P9 s$ q. G; ? j s5 }6 @/ P
set i% P [/ B& x6 p% {
( i + 1)3 {; S" R' O+ A, i3 M8 r% p r
]% Z1 W9 t6 N6 r. d0 o* n9 w, V, b
let credibility-i-j-l 03 P L$ B) y' P: m& r9 v) v
;;i评价(j对jl的评价)" z M. h; g$ R! S( C
let j 3
; N/ }2 m% p3 W' V& W& Mlet k 4
. e6 W+ }" }/ T0 }while[j < trade-record-one-len]# j! w! L3 c7 z: N6 J3 J3 X ^
[6 I2 C& C" s T! z
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. k! @7 A& q4 T" P! z2 }
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)
! u9 s& S) }5 G' ^5 R2 k1 F1 M6 @set j0 F1 ^* x, {0 r- R9 v
( j + 1)! M6 h( F& f8 q6 M. E
]
% ?) A2 D) O5 u5 ~$ {& ^/ hset [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 ))) t- ^' v- M1 U
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
% {! D2 U2 v* o* t5 q;;及时更新i对l的评价质量的评价
3 F5 e9 J' @+ z- r+ M% eset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
* }+ u' }) E+ }/ C- M5 Xset l (l + 1)
* m8 Z: Q1 e; U8 V! Q; D0 X# ]% f. P]- z: D) K' k. l1 y: S' `' \0 i V) s
end
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to update-credibility-list7 Y8 y4 X+ o6 a! b# L0 H1 ?
let i 0
5 n2 r; k6 _. v3 k% g, ~6 dwhile[i < people]3 v# H: p: ~1 y* ^: P' h5 G
[
* l, D2 Y" W c* b, ylet j 0
$ v) A2 Z( O- V6 ~let note 0
) ~8 y/ b" N& J+ Qlet k 0
, \5 ^2 }, k$ R9 l;;计作出过评价的邻居节点的数目) N1 q+ F0 G, z9 h: N
while[j < people]
2 ^% C5 S; T& O6 L[( T; t/ F0 n) C; Q: Z3 P+ \6 V. e
if (item j( [credibility] of turtle (i + 1)) != -1)2 _+ H7 D/ S5 a' V. E1 a5 _+ f: b
;;判断是否给本turtle的评价质量做出过评价的节点) K7 F( t; T- }; {) w
[set note (note + item j ([credibility]of turtle (i + 1)))0 G( l( I" h4 \; y! ]' @
;;*(exp (-(people - 2)))/(people - 2))]
4 N. ?* Y+ k, Z9 E& [! U3 `set k (k + 1): g8 z: {* j; Y% |( J3 n- a/ e
]
4 V$ a/ P" s. C7 yset j (j + 1)
2 p x, C' c+ y/ W# j9 b# o6 B]% S7 P+ z; f# ^$ F
set note (note *(exp (- (1 / k)))/ k)% @) e$ y1 y* O: {4 f; N) n
set credibility-list (replace-item i credibility-list note)2 `# z/ \. d9 V8 b) n
set i (i + 1)1 J" `/ ~7 w+ X$ E8 j5 a. s k' `
]" R5 w8 G) U( I; R8 b8 S
end
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to update-global-reputation-list
3 C# K1 A" j7 ]let j 0
. c! R6 D+ g8 B5 Awhile[j < people]
4 ~. V+ P/ j$ [5 x# f7 ~0 p9 }[6 h m" D4 D4 V2 U7 W
let new 0
" ? v3 n$ p) x" t$ [; ^, u;;暂存新的一个全局声誉, H% _, g. d7 g, \7 o% g
let i 0. ?4 u: s" H9 M
let sum-money 07 k2 b- O u* F& ?9 W
let credibility-money 0, i G. }1 f! V* @+ G
while [i < people]6 x# f) Y0 U5 g6 d/ b% q
[1 b! w" L8 i9 {+ v# f) Z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
% j, D9 p: u3 K% t: }2 V. ~2 Yset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 t _, N! y# L4 S; uset i (i + 1)
3 e, q% B: _" W! e0 _- R]
+ e' p5 _: _1 ?/ `& k2 ]let k 0
. [$ w4 C5 b4 e1 i- z9 | [let new1 0
* k: X/ l9 t- v J* M0 Dwhile [k < people]
4 b% u: x/ n5 [: V, Y9 p, H( U! [[
7 ~- m& r$ ^# uset 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)
3 M( ?$ w, H3 B9 p* l; wset k (k + 1)2 V; w G9 K; F
]+ s3 u8 x1 S" o2 S
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) & i' ]& Y6 n5 H5 k3 {- Y6 }
set global-reputation-list (replace-item j global-reputation-list new)
9 j& n9 a/ N% ^8 a' hset j (j + 1)
D7 q: P' U1 u: i0 Q, c6 e]3 s( W& B6 N, H3 ~ F
end
" `0 c% M) f: B' x3 r! _0 s
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- {4 i: s, F J4 m8 A' B' I h! T# c; w! x4 {
to get-color
+ K" k! I9 q1 \6 \: G
. Q9 [ j! l" y6 \8 q9 |4 oset color blue
1 \! s0 b/ { O8 K/ M2 ~' m8 tend+ I2 Q7 z- v8 f+ I, V
6 d- e5 \" G# U; r3 Jto poll-class( m" g0 I8 }7 p8 m: @; \
end: F+ O3 T( q" z
4 d2 }: t9 Z3 \" H6 X. Eto setup-plot1: s2 ]/ P( w9 f* ^) B
2 P: ]/ u" Z$ S6 h% M, Y; `set-current-plot "Trends-of-Local-reputation"
' w$ n) F8 {4 \9 B e/ [) I0 C
$ ^0 B: e1 q+ e! J% _/ ]set-plot-x-range 0 xmax# o0 r: ~! K* R3 d8 \
7 V5 K. B* Y+ b. Y0 K0 V- R
set-plot-y-range 0.0 ymax4 E% P: ~) v/ h& m8 D/ J
end( t* u7 n- @' x7 m) f3 H' p! f
: } C- @3 I. {8 h4 k0 Oto setup-plot2
2 S3 x& u% E z/ S: N0 y" q7 z$ H }
set-current-plot "Trends-of-global-reputation"8 a* }+ x) ]8 |2 I# |: x$ |
7 U/ x& Z: b2 n1 r$ Lset-plot-x-range 0 xmax, k1 w9 r. |% f. g& f
1 `: q0 \9 L$ R8 A. v8 B8 z
set-plot-y-range 0.0 ymax
6 Y. I1 p# u/ Q' ^5 F9 wend
6 h% d# i: i+ Q7 x+ B, ~- O6 j5 _8 J( h5 Q5 I6 L4 B
to setup-plot3 _ @: C. u( Y3 |
* x8 P' S" b3 _% I4 Xset-current-plot "Trends-of-credibility"+ Y! x: \+ Z; C! Z1 u' U
2 o( K4 M, B j1 l" h" l: {. D7 aset-plot-x-range 0 xmax
! i) E$ |% w9 {! M
; V9 u# {5 H) x' f$ t/ S9 p8 `set-plot-y-range 0.0 ymax
# t+ [' y z& S, aend
. l5 d# G/ V3 r; s4 X: d# t
8 O# B( V3 H: [1 ~3 dto do-plots6 Y+ u D. a3 F
set-current-plot "Trends-of-Local-reputation"; ^7 b1 B' p. e" a
set-current-plot-pen "Honest service" t( Q8 q( _1 b, |: C4 t
end5 f6 q7 a8 H+ h8 v( A
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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