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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
5 W/ h# a7 ^2 Pglobals[
" f- C L0 b% i7 S2 @/ w2 V0 T7 Lxmax
2 O- T, y6 B9 m% }, mymax
4 E& ?1 F6 d" g3 i% u( W7 ~global-reputation-list
; X7 }8 P8 ]* ?1 T* } S. k
2 m/ X% J+ J9 L/ r! c" ?; t;;每一个turtle的全局声誉都存在此LIST中0 ^1 P. v$ z5 U" |+ w* g1 Y
credibility-list
2 D! r T8 i( Z# _3 c) e;;每一个turtle的评价可信度
) b3 N2 {6 E7 @honest-service: ~! S7 r5 C6 G
unhonest-service! w! H+ W+ I! v3 f- C# M2 n, M3 S
oscillation
4 `' M# v, \$ W5 y; x: Hrand-dynamic: K2 k" }/ f0 [8 W' D# q
]
7 }; z5 Z- |+ v8 R+ }
, W1 F A0 l& t5 n( o7 q: ~" Qturtles-own[; `3 d" [& q# ~ V
trade-record-all
' b/ p/ s% h9 E6 @8 K;;a list of lists,由trade-record-one组成
0 n8 _+ `6 S3 t6 Strade-record-one8 Z, h! F! j5 z; @( _3 R8 S
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
% w' L2 |! R K6 x+ C. p& |; n7 I; x; ^: D
;;[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]]. B0 Z3 `$ F/ [* }: X4 p: }4 D- }
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]( B& [) ^5 H: B9 I( X; I$ 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
2 `8 T4 V0 F3 M3 s" Y& K* qneighbor-total" r8 b% Z2 l) Z7 Y& E
;;记录该turtle的邻居节点的数目( a% t% o" a( D- i, R' d8 V
trade-time9 P* D5 f- x: o' b( b/ d6 o
;;当前发生交易的turtle的交易时间
" ^ {2 n, ?; L0 e1 @/ wappraise-give
! v z& l9 i' H5 y R+ X& I7 i- q$ q8 t;;当前发生交易时给出的评价! F0 n" L# o3 ~/ A
appraise-receive
! D: H" t3 z* @) m. j;;当前发生交易时收到的评价
$ J ^) V2 z) u; C/ Mappraise-time6 _$ B1 {, q& e( t+ x1 g: v
;;当前发生交易时的评价时间; L; w3 D7 ~# O. W1 F, J2 r
local-reputation-now;;此次交易后相对于对方turtle的局部声誉1 M) D) ?0 q7 ^5 k6 e
trade-times-total
9 }7 @+ f4 G( ^! h" T b; y: I. v3 v;;与当前turtle的交易总次数/ h8 F) t, m" I8 E7 o: d, Z5 S& U% x
trade-money-total
8 E1 k7 ^# b6 n0 o! x% u6 {;;与当前turtle的交易总金额6 z2 ]* o0 w: ?! n$ G
local-reputation
9 k: L, a! ^8 T5 `$ O& Aglobal-reputation
) c( A& K$ |# Q* t$ Kcredibility
6 d" J! a" L' e3 L;;评价可信度,每次交易后都需要更新2 n- U# N% V7 s( t) j
credibility-all
8 P+ ~! r) F6 c: X0 N2 Z, f+ m3 c;;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9 m; _8 t# X, s. b5 M$ ~
0 y8 v- m4 ~+ U; r& @; U& a; D9 z9 |) b
;;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
2 F0 A/ s5 U* j5 j7 Scredibility-one
; d o' Y' c* Y8 j+ `: Z( 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
# O9 n, c# f$ W5 @ U. |& ?global-proportion# a8 d' p% u; l" p2 u
customer% m/ Y/ ^& q$ w' T* o9 c# ]
customer-no
: u( Y! i9 V, d: gtrust-ok
8 Y. h+ U" K) q' p2 Qtrade-record-one-len;;trade-record-one的长度
Q! Z0 m9 f' P8 B]$ Y( R. r$ V- G# }
, w2 C5 ?, N* {; Y* t
;;setup procedure. U: Q: D: u, B+ i
5 Q' h- v7 G* ^9 d+ X7 k s3 Qto setup
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ca) i1 n/ L5 p' L' \
2 ~) T2 g9 Y/ n9 g/ ~3 ~
initialize-settings
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crt people [setup-turtles]
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reset-timer0 I# z$ V( @: c2 V5 b$ I6 }
* T$ g2 P% S$ B* ?# m8 hpoll-class( w& Z& `& V3 g( U* R* o/ |
1 U4 ~# l5 c: a3 Q$ }
setup-plots2 g, Q* F* S! b
' s4 u/ f* c' a1 _3 C! Ado-plots% R f K$ g; N% \7 m
end
6 Q+ \4 q/ K p: S
8 X) l( E5 I8 H5 {+ I* H- @to initialize-settings8 [' a+ |' {1 L* L6 d& R; j
( V( Q T5 l+ A, i* h6 J6 R3 s7 ?set global-reputation-list []
& \2 `( t/ m3 [( X1 u2 o
% R; l, E3 ]6 U, ] L/ b' vset credibility-list n-values people [0.5]
9 M" t& R' @& b5 V' j Q6 n# x8 k) x
set honest-service 0
9 a* e0 J1 D8 }; Q, ]1 z$ j+ T
; ^5 C; v I! V0 Eset unhonest-service 0
- q% q3 }/ t% J, u- X5 h
" L* c; t$ @4 _) Q$ ?set oscillation 0- X; i M: D" ^6 v
7 J5 O& _( \0 h2 Jset rand-dynamic 0
& v1 d/ d6 @4 M+ Fend
; g& V4 Z5 y, o6 y$ @; ]
5 a: L5 l$ S( K$ \! r! ^2 Dto setup-turtles
- G0 f8 ?1 q6 N! K% I5 W& a' N' @set shape "person"
- a" H9 ~3 `4 A- H4 m/ i: Gsetxy random-xcor random-ycor
V, D/ c2 h: q( y! r0 Uset trade-record-one []+ \! C4 x* a5 j& w0 F; m2 r* n3 i
8 `+ a6 a/ |6 K) gset trade-record-all n-values people [(list (? + 1) 0 0)]
6 K7 M. x. L: z; J7 n6 C0 n) s1 B. K. ^4 p( S
set trade-record-current []
6 G4 T. }4 V/ hset credibility-receive []
2 @; K* B$ o" R* H9 a) ^& J+ a" @5 [; Vset local-reputation 0.5
+ f4 R9 q* a) X( t3 p/ bset neighbor-total 0: y. D- c7 m3 n$ S
set trade-times-total 0
$ [( p6 ?, m6 @, N& Q3 j1 \set trade-money-total 0- k T( ]. {" a& S3 P
set customer nobody0 z9 d' d: C) d) k1 d3 r( i& O
set credibility-all n-values people [creat-credibility]: Q! D& M* \7 F. t& H
set credibility n-values people [-1]
$ `6 @2 r6 s. E( Aget-color
n" l: u* s1 ]& T2 i0 h2 E& @2 D: ?; Y/ S5 T1 d$ l P' B
end
" Z6 ]' C& X6 A- k6 V. A$ A7 I" u1 n, @6 k G5 Y* [
to-report creat-credibility
' E7 p+ E% ~7 U8 u$ {' Areport n-values people [0.5]5 J# N' B5 k: F% {) F+ \
end7 v, v$ j: i% c9 Q8 A% N! ?$ E4 [
' c' D$ [$ @! I9 bto setup-plots
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7 w1 K, E, U# C4 jset xmax 30
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' U- b( b! K- t* dset ymax 1.0
# @# c X# i& r8 Q5 F' I, o
- R- K5 J/ `% B" p. C; K' Y2 s1 m* \clear-all-plots
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setup-plot1
/ B+ t! T$ d2 z5 V, r
' f q+ n( p) E/ k; Isetup-plot2
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setup-plot3
, f. ~3 ~" z0 ]% K8 {end
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" q/ k; j$ Y' U' u* K0 M; Q: p;;run time procedures
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to go
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ask turtles [do-business]
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# V1 F4 ~ I) {8 N* K
to do-business " ]/ k3 i1 Z5 F Q5 n
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2 q' }5 n! U9 E) |7 m
rt random 3605 z. m$ q0 z& E
: i* }! e" `+ ]1 B3 k& Gfd 1$ ^5 A4 ?$ d1 x5 M: S3 K6 l: F
/ y" j" B, c4 D9 t8 N$ Vifelse(other turtles-here != nobody)[6 W3 U5 T6 |7 @
1 G( _% U3 ~( f; T+ Yset customer one-of other turtles-here
+ t3 J# x1 x6 m* I& f; i
* e2 z0 K* l$ `/ c. g: q) O;; set [customer] of customer myself
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- L% p2 u3 W* g# xset [trade-record-one] of self item (([who] of customer) - 1)
7 E4 i% T# f# T$ d[trade-record-all]of self
" w& T! F; I( l2 ?4 X/ t: I;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
' c2 l. Z2 b$ w0 _
; Q/ p$ a i. I& g- Pset [trade-record-one] of customer item (([who] of self) - 1)" j3 A4 ?- A" D2 Y* h2 T" I
[trade-record-all]of customer0 w! n/ e$ ^* n# o! K# c) z* n
# p7 F; l5 z3 L; W [" @; ?; E3 `set [trade-record-one-len] of self length [trade-record-one] of self
+ `1 g8 m H( G& Y* G1 H! x. [( l$ E' A
set trade-record-current( list (timer) (random money-upper-limit))
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" ?" z5 b0 V6 }5 ]( E) L$ Sask self [do-trust]: J7 u) O3 B: `, k5 v5 n% L
;;先求i对j的信任度
% t& N0 @) ^- |; J$ h# s! y
, w( \7 X1 _. s tif ([trust-ok] of self)
0 y( M' i$ i- W5 f" {. Z# C;;根据i对j的信任度来决定是否与j进行交易[- b; m+ q; Y2 e0 y0 f; f' z
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself; {) U' D1 j7 A. F) l- Z' q
+ i% W) {# t7 ]6 C[
/ P8 E3 ]1 @& W! O& @- Q, ^. }3 C7 K6 P3 J, ^8 n; ?) L
do-trade
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7 M1 o! a/ c* w) h$ Hupdate-credibility-ijl
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5 a# _. }8 G/ vupdate-credibility-list* z4 o) e0 y+ }
1 t$ B# u7 r: j: U
6 _* B8 t: e) y* D# zupdate-global-reputation-list
) D" e0 Y' l: Z. g4 W: M( @- |8 x0 C, w8 B* N$ |8 I+ V* F. y
poll-class0 ~' n; P7 z, `
* K9 c i2 N* f# U0 d/ C8 Zget-color
/ ]; k0 I& Y6 G4 c
7 D- M* t: W/ }7 \. W: g: @]]' j3 W O$ p! C
4 x8 @! a2 ~, V, V
;;如果所得的信任度满足条件,则进行交易
4 {2 j% H8 h* p; V$ j0 T7 u/ D/ F K# i
[7 E) {( p5 f) ~$ w. L1 c
& [. k3 N/ r7 L8 Rrt random 360
) U [9 l1 D! @3 M+ e
V% x r& ~ T$ S: A6 sfd 1
/ x6 j, E! A4 t( ]
# w0 t& F' a2 q( _7 _4 K]! b" t& d# R5 [8 Y! Y k8 ~0 z# J
3 c& h7 R# j' `, z% K1 G. `- Zend
. @& ]9 G5 e' W6 f$ n# l4 T" e4 b, S" h- B& `
to do-trust
6 H8 Q a% w+ ^: ?: @set trust-ok False3 B1 B( u* \' U% y4 j
# }, d& |$ N& {1 j
! f8 _8 A X0 N, Rlet max-trade-times 0+ r# x& D" O1 Q
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
4 F4 x" V; ?* }) plet max-trade-money 0
, @% Y/ Q) H) i% K6 Y k! G/ Lforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! ~3 b" G l( l4 Z; d- Wlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). C! g1 x$ u& U/ T& p0 k5 c/ N
1 G$ A2 b& ?$ O" w |; X/ r. S$ u+ \$ T% c$ W9 W) r) H
get-global-proportion _* o e1 W$ A) n4 l+ ?& r8 [5 a$ I. `
let trust-value5 q2 q. R; j1 A, Z9 t
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); s) f C4 W' w: [
if(trust-value > trade-trust-value); b8 S, U% y0 h9 w8 ~' @
[set trust-ok true]
, r9 r4 R! u u0 o. _8 Fend$ |5 L# g* h, V& y3 c4 ]
& X0 {9 b" N/ _, xto get-global-proportion
) r: E( u6 c8 d: N9 wifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
! p! S }; s% u; }! \* } @[set global-proportion 0]
9 L" b6 C6 X, o6 e9 @. D[let i 0
4 g. i* S4 e( b+ S6 Clet sum-money 0
7 c9 ~% ?' q jwhile[ i < people]6 ~) @: d, {: }# R' R
[5 Y) y( Q; i' l: e g$ M+ Z
if( length (item i! m4 e0 C: I0 m4 L z
[trade-record-all] of customer) > 3 )2 N5 c' ~: Z1 a9 I) t7 i
[
( }3 G6 d k B7 j- b) Dset sum-money (sum-money + item 2(item i [trade-record-all] of myself))! A7 _6 q( ]7 w: C
]
0 G; z- L$ b7 K2 k& h: k3 U]/ A! e% H ]0 G2 [# ~1 }7 |3 M! j
let j 0" z6 U1 C5 N) i, e1 l& o3 Z
let note 0% z8 `5 {! p6 n- J0 a
while[ j < people]8 p+ C7 d1 s% n, ?# T
[
) K4 F. |6 U; i2 `( T" Xif( length (item i0 |/ O1 z* S9 Z- U; [$ ^+ G
[trade-record-all] of customer) > 3 )! a9 T0 z! u! w+ b' D% @. L, ^2 _
[
$ U/ W, \' _' C$ p: z; c6 q: h tifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* N/ J$ V2 Q+ X; G ]; W, } ~[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 L, M! _4 \0 U
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
z0 o7 I) b0 i1 x4 u' U]8 R: ]3 N7 a8 D+ o5 R
]
5 Q, e! l; c: T& v: m+ Gset global-proportion note1 G- j6 C) O( L# }
]( a' B+ S1 |& e% R, r& b: C5 c% K
end! Q( e J' I# S* B0 j
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to do-trade9 |' w6 B* g6 f9 @ b+ M, q( ` }# |
;;这个过程实际上是给双方作出评价的过程
2 L3 z0 R5 e# [4 T e6 t' Qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价0 [2 r0 q! z/ ^
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价8 V: e) Z; s3 c' K6 e7 M- c
set trade-record-current lput(timer) trade-record-current
+ c; C2 b$ @/ ~9 L- ?;;评价时间
4 F3 k2 m% A" _* jask myself [
0 J3 W2 [4 V' t6 o, q' d7 D/ ]update-local-reputation( B& }6 c( ? j" k
set trade-record-current lput([local-reputation] of myself) trade-record-current( {, [# ]- e% X2 ?, X
] W3 U( d9 j) ^
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 S6 n8 j" m2 n: }
;;将此次交易的记录加入到trade-record-one中
# \+ U6 L3 Z/ \, r: Nset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 q3 a7 _" T) o' t9 g' b
let note (item 2 trade-record-current )
2 m7 R+ y& Q+ u3 T; i6 a) Q& L' ?8 sset trade-record-current
8 e2 B/ O: ]5 {8 w N(replace-item 2 trade-record-current (item 3 trade-record-current))
1 Y! |% s8 H6 g& ^( S' Q# wset trade-record-current4 k+ [) x* V# j' n# g4 D3 b- f4 y
(replace-item 3 trade-record-current note)" C2 n( K* t: x2 @5 v3 Y- K
o2 T% L) E9 x" U- e
+ L+ \$ Q: o4 ?4 o$ r( Xask customer [0 R. y: i" {1 {; L7 A0 J2 q
update-local-reputation" P' V) u$ q/ @4 \' P6 ?! e
set trade-record-current$ u' C) S) f$ c
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) t- f; k2 X4 E y; Q( U
]0 g0 k9 |7 _! z2 Z
$ W+ H! N8 i$ d6 D9 y: I* e
/ ~" g' E$ T' kset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer7 v1 ?0 m+ [: i4 [
6 K0 a- x" O. Q( c' _8 r3 |
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))# Q/ ~7 A# |+ @" u
;;将此次交易的记录加入到customer的trade-record-all中" _: L4 O- r3 ?4 e2 N
end
X% c% R/ x' e: y' R5 O
% Y N( ^) z; a6 r3 z2 lto update-local-reputation
! A2 D4 w% ^- I. p# ^5 Uset [trade-record-one-len] of myself length [trade-record-one] of myself7 e' ]" y B, J- B- U0 ` a
7 r: A8 F8 Y2 W3 r9 h* i( C+ x
2 I3 G: s) u$ o: J;;if [trade-record-one-len] of myself > 3 ) f+ \, E: z I# I) F; s x4 x
update-neighbor-total
! a' P' b; Z9 F+ H. |;;更新邻居节点的数目,在此进行
* W F* j9 Z5 h! h* U- Ylet i 3
9 G; O, Q' i( f1 t, _+ Jlet sum-time 0, f$ G/ ?" n3 J' \( n1 i5 f+ T) N' y+ v
while[i < [trade-record-one-len] of myself]: `* W7 J5 g, [- h
[
( |' M+ N! b6 E- qset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 c) c5 ?* R, Mset i( I! k( Y" G' F: j
( i + 1)* b( {; f4 \- x5 h& H5 {4 J' F
]+ p4 x6 a1 X9 R j; o; b) o* f, M
let j 3
, S$ K) b* V4 C8 \let sum-money 0( h4 D' s) _9 m i0 G
while[j < [trade-record-one-len] of myself]
4 }: H8 p" x2 Y# l! q' H+ g[4 n4 d8 f6 M& e f+ r2 s
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)
4 g0 h' ?/ s6 K4 qset j
2 J8 T! z: D( Z* a" V4 w: l8 c% I( j + 1)
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let k 3
r- }6 O1 T5 U# Rlet power 0
+ a3 d$ p6 j! zlet local 0 z7 N B; w. h- z
while [k <[trade-record-one-len] of myself]+ B6 W: J* x4 h1 @4 x( x
[7 T% O# k# a% u/ b7 A* j
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)
1 d8 N7 G) H9 K7 V( tset k (k + 1)! R; u# d3 A, J; Y& y9 a
]7 Y9 Q( W0 \# h
set [local-reputation] of myself (local)7 \# o% p3 Y! X5 ^+ O! U" h3 ^9 p
end
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# y$ u# U, e/ I b2 K$ ?2 l7 S/ tto update-neighbor-total# o0 o" R* O. x- x x; n
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]: ^6 m8 k" y; x2 }" l. X
; D- P3 Q! e' I- Q# X7 u
4 @' D" {- v, Z- h" c3 d0 Aend
: l: t' s+ V1 R4 L- y1 c* e; k0 C) _1 D- v7 X! _
to update-credibility-ijl ; d C! A, \9 O3 G. L
% C/ w3 N, E7 l# 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。
& o/ ]0 h3 U9 r4 r3 {* alet l 0) U# F L; V( A1 P
while[ l < people ]
V1 }' R$ O4 ]1 o, P' `;;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)( C: {8 F7 @) e# S6 b2 g
if (trade-record-one-j-l-len > 3)
7 k& `0 e. k! e! Z[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
, q0 {6 q% z9 R& u1 xlet i 3
, w3 s6 ?2 |6 J% k3 j! U" q+ Plet sum-time 0( ^" I" t3 O! w0 A+ j
while[i < trade-record-one-len]
$ s" J) b, I$ D8 L' c% U[
; c) b' g2 i- J# k9 e% p7 Cset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
: X m* F1 B7 cset i& _( R. H [1 N1 K
( i + 1)) Y: ~" h; m, {1 H" B' {) d
]
4 l' t3 F: T' d4 f! l, qlet credibility-i-j-l 0
0 ~3 g; d$ _! H5 T5 l* n;;i评价(j对jl的评价)) H1 z" @. n1 ]& u6 y
let j 3
( V4 C8 @- @1 ?# X2 Llet k 4
5 k5 X* s* N& Gwhile[j < trade-record-one-len]+ u( L7 x# E. o; _4 V
[
( A* Z0 F9 F6 ]1 D+ {. Swhile [((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9 v* P6 P: {+ D) s1 e* p- |
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), P8 N% b" r) W" S1 V, [7 O+ t) R6 ?9 K
set j7 Q! [4 }7 N7 C% {6 Z/ }
( j + 1)1 u6 y b1 U. Z% ~# b
]
- `1 v! j1 e' M! W; ~6 Mset [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 ))+ O9 M$ F3 _; }6 E8 }" c- i: r
R2 j7 V7 q" j
+ v: K4 V7 U) U+ K! S3 slet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))! I. K3 B: S6 G+ Y( |9 @) ~
;;及时更新i对l的评价质量的评价
3 T7 B+ i1 j% ]1 D+ o; Y Hset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]. B6 _5 A3 X( r P# ~! O
set l (l + 1)0 E! s; N0 Q; M* h) _0 @7 E
]/ C- I, v& i Z* j* l$ y
end
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to update-credibility-list
7 m6 P7 ?. L% s1 ~+ w; Plet i 0
, {4 q+ ~' C7 D% r6 p; h$ ~/ c0 Iwhile[i < people]
: }. I" t U! h4 H( @( }3 K[2 o5 M) B* l4 q3 }1 q. {: s
let j 0+ x2 d1 `5 q' n9 w9 s" X
let note 0
9 O9 I0 V5 |3 k/ U e. b) [let k 0
* \# h+ d" K5 X. x7 r9 L9 g; G0 i;;计作出过评价的邻居节点的数目! E# L# M- @# l1 c, M" x1 K2 O* ^( m
while[j < people]
! g: t7 i: ~) \[
# E) L2 s( W2 x, o* Oif (item j( [credibility] of turtle (i + 1)) != -1), @/ l( u6 Z3 U# Q
;;判断是否给本turtle的评价质量做出过评价的节点
7 e+ U( m4 z/ E" S, Y[set note (note + item j ([credibility]of turtle (i + 1)))
7 |# F! ~5 w* c( l! s;;*(exp (-(people - 2)))/(people - 2))]4 i, ?) h8 w4 g2 X1 o# o
set k (k + 1)0 z, V. |8 B( i' L+ w; ~
]3 G4 F) I' ]. d- @0 L0 a, n5 p
set j (j + 1)
2 w1 k1 H" k2 |]
; T5 j8 o# a: Q7 Lset note (note *(exp (- (1 / k)))/ k)
6 @+ x8 v9 D7 n2 L7 Q" J- aset credibility-list (replace-item i credibility-list note)" x9 G2 e5 E" N, o
set i (i + 1)
; o5 Q A! y7 c6 l; Z]8 t: ]& [: M/ C8 ~
end
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to update-global-reputation-list
* x/ ^# x) ~' ]let j 0
: X0 H) `! p4 i0 u1 mwhile[j < people]
( ], Q/ M' |! @+ L v[
2 f$ D4 t( ?' B5 J+ s- Dlet new 0
" T/ ^& @4 Z% \5 W5 m% s;;暂存新的一个全局声誉
4 j+ x6 M E' s0 ]; Ulet i 0
$ O. A# R9 L/ F; {( s0 x- D5 n# clet sum-money 0& g& y. V+ r, P; B$ m
let credibility-money 0/ E8 O1 g6 u( U( C
while [i < people]
: z9 z- b. ~' z8 M. z4 p4 x[. `7 Z% Z# t% n+ ~
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
$ q0 N& _/ g( A- s' h8 c) ~set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))3 x6 P8 Y: {0 a& Z `
set i (i + 1)! Z2 U" Y7 M, g5 |0 X
]
( z2 l* ^& X% } b, E! h3 H7 ilet k 0! g ~+ s' w* f( T
let new1 0
; `( [3 j; A+ g, w4 nwhile [k < people]$ k+ u, V' f' V6 V2 Q4 N6 N
[6 v! z0 F" R6 U
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)
* g6 s4 ]- B3 Z1 yset k (k + 1)
: U! T* K2 b" W6 J! |/ w# ^]
( l/ g6 b7 a) k: ]# d; zset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
+ v1 f$ o3 k [2 ~3 i' Y7 rset global-reputation-list (replace-item j global-reputation-list new)/ o, K( ?% a& I& A
set j (j + 1)- V; x/ {% b/ k! m6 ~
]& A* W! `, u. s: B! M4 h) ?
end
/ e4 v* P# o& X9 A0 J$ ?$ x5 C
! m- n% S3 o4 j& k
. _: C- h6 L/ n0 d3 P. _$ _4 P
4 [1 L$ K* ~9 Bto get-color
3 z" Y* R5 \, Z( t# }. c2 ], [" H* T2 y; I9 W9 B: n @% M
set color blue9 h4 Q- w& [) i1 O3 x
end6 P, j/ v# U. o$ ?) i# |8 n7 X3 H
2 d p1 {5 ?* W: O1 Z! V
to poll-class
3 ]! @. w$ m6 P. w( T% xend
4 G7 {% M( y; n6 g/ Q6 h' D# d) X% e9 H! n) M/ |! U0 q, j' Z
to setup-plot1: u* i; F* p6 D, N
$ A7 T/ n, n8 U" ]: X9 [, v
set-current-plot "Trends-of-Local-reputation") ?% Z4 E8 s' y4 b
w) `6 _4 m F \6 lset-plot-x-range 0 xmax
B/ s' X' J3 r1 M% H
# g* [/ P8 s* \+ _set-plot-y-range 0.0 ymax3 N' m7 G9 _, F5 x8 k) w
end; [+ {: S$ j9 B4 ?( u" U
) M$ q+ o7 K4 N# }1 v( `+ w
to setup-plot2
0 ]3 D! Z3 J! y/ I& q: Z
; G! r( `+ k# u/ j4 a c- uset-current-plot "Trends-of-global-reputation"- O* y3 Z" l) e+ s# q; |* d: K
0 X# t2 h1 @- G- I1 Sset-plot-x-range 0 xmax
0 l! c" x! v3 f! f4 k0 K/ o7 w% J) J! F* L: ^
set-plot-y-range 0.0 ymax# d/ W9 m8 H- m+ O) F3 h0 S+ t
end
r. m7 i, U. f; L
! i, a4 l% s X% s% m3 `" F+ |( }to setup-plot37 [0 u! I# b* y: W- ~/ d' X8 A
2 J, x6 h2 g) G9 e4 g; \set-current-plot "Trends-of-credibility"/ L) e2 H1 {$ j4 x- @1 R
- H( A/ i2 p! l3 }; _( V% O: R
set-plot-x-range 0 xmax/ d6 K# H; h3 Q5 Z% g: ~; a; f1 g
/ O) A1 U' m" T0 ~6 V' r6 ^" Zset-plot-y-range 0.0 ymax& M4 F) r$ z- ]) }2 J
end9 j2 }# H0 |- u+ z- a
0 i5 T8 G. L u* y6 ]( I* v/ V
to do-plots
5 V+ F2 \" b' ^, ]2 }& Rset-current-plot "Trends-of-Local-reputation"
1 L+ x ?& Y# e& N7 vset-current-plot-pen "Honest service"
; J* u7 y9 a8 E' ?. C+ G! Iend
* \. i: V4 ]& y% @) u
) [$ C8 N. v& g+ [[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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