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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
* h/ G( k2 z$ W# z' h0 F, c7 m6 i7 lglobals[1 S& i0 q: V/ ~% [( @( y: h+ ~
xmax$ }7 q o6 p* L, s( ]
ymax/ k( P" q/ P4 x! i1 m! d( |/ w4 ?
global-reputation-list
$ Z/ Q* c4 V7 P% o0 O# F
) q; H: d' L$ k3 Y;;每一个turtle的全局声誉都存在此LIST中
3 ]* Z% l3 _" }# r2 X! F" tcredibility-list
h5 Q" b/ h. H. x* M;;每一个turtle的评价可信度1 T0 c$ k% B$ J) r+ T* u+ Z
honest-service& A# ^9 H4 ^* r$ u& D, ]
unhonest-service( T) l1 w: [2 v5 l" I) L
oscillation- Q# M/ r9 `" y1 i% H6 C6 t3 {
rand-dynamic
4 @1 }; b: I/ T9 C: c' x' ]]
1 a# w; S" I7 g# z2 k0 B* I/ P
1 k# M* p( Y8 b$ e, ~7 v6 Wturtles-own[
# J7 P+ c, y3 X0 m3 U( htrade-record-all
$ c/ o( d* e5 X0 f. e8 a;;a list of lists,由trade-record-one组成
0 e( v8 M2 c) B v: m; dtrade-record-one l/ e* @' `6 x
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录, M0 E& l3 S8 i1 U; }: b" g
5 B$ _0 Y* 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]]) ?! N) M' i2 {! K/ V
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]
# s1 f( Z b- P" ocredibility-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
( ^ |& D7 M( E$ xneighbor-total6 J$ M. ]; G9 U3 a
;;记录该turtle的邻居节点的数目- U2 Q; w8 F+ K
trade-time8 |6 p, r% \' s" t$ \
;;当前发生交易的turtle的交易时间
. J5 ^6 ^- O5 U& P4 Z$ M% N0 o: nappraise-give, q/ Z7 L7 p4 D c
;;当前发生交易时给出的评价$ L9 ^0 o6 C( ?; t$ F& R" e' _$ E
appraise-receive
. T; m2 ^3 f$ u$ ?/ m0 U4 W% y;;当前发生交易时收到的评价
8 G( p5 j7 @# ]9 R/ r, R aappraise-time, L/ ~+ t5 i/ C3 Y5 H+ @0 b
;;当前发生交易时的评价时间
/ d; r5 N$ u! {& Rlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉, O0 j9 @- |" u
trade-times-total! }6 u' h Q) P8 E; u8 M5 ?6 Q* V
;;与当前turtle的交易总次数
1 M4 U& f6 _0 z$ N/ [( u) m" }trade-money-total
* @* h/ n$ r# a4 Z% ^) Y& E;;与当前turtle的交易总金额+ ^ f" S* e: Z) F8 g9 M: D: u9 T
local-reputation
5 r$ `; E/ Z! s+ ] i( _global-reputation
& s* w5 n+ P; F$ |( z# }3 Tcredibility) z& y$ P# F) B$ H
;;评价可信度,每次交易后都需要更新
% H7 S' }& r; l( u% S. _credibility-all
2 Z' v+ z6 Y8 I+ M;;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
$ w) z( b+ l+ o% b9 V# Z: v3 m- g! S2 {' i
;;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
3 W+ z" o6 q- x$ p( X: p5 v; \credibility-one
_ y8 H. R5 Y4 p( m! P;;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
$ L# M$ t" j; k) Q9 S, |" m& lglobal-proportion
! {8 j( ], z2 n# L3 H/ v5 fcustomer# S' p- u+ T6 c9 S
customer-no5 M4 F" e( A) L' `
trust-ok
2 z) q& Z+ ]& \6 Y6 t# Jtrade-record-one-len;;trade-record-one的长度
2 O1 f' n9 P W1 y2 \]/ k+ O- }5 P: ?0 z4 {/ p4 k0 Y
) n& W J# q( U+ F6 q, g( T;;setup procedure
1 d) i& H) [* P! Y9 C# {& k0 F# V1 U: P( I
to setup! O. E5 H' f1 f9 Q2 ?0 O2 o3 X0 |
8 N2 i1 m0 O* S% N# yca
! ]9 X3 t. D# y4 o: _& M u i9 U( M* V, O$ l1 {0 b5 Y4 K' ?
initialize-settings
- F8 k; N8 y* ?- B) d& _& L1 \
7 B& @, V2 N! f% n% _6 p9 ^+ D! ~! scrt people [setup-turtles]
5 z; ]4 o x o+ G% l5 u: f. O- S0 o" Q4 j
reset-timer# E! d6 L9 d/ g' x1 Z8 e
; V% R- ^7 U! B/ O0 |2 x
poll-class. m( r( T$ e3 }/ d+ I
$ F7 |+ v- \4 }' X7 S2 S1 S# a, I* _+ r
setup-plots
/ {! ]; }" s6 c/ G" O e
" y& t- A b1 U9 ?% Hdo-plots8 }: g4 l: V5 H4 x/ H4 Z4 {; ]
end9 Z! X4 J% J1 h2 D: V
! X; R8 R& l t2 P( C
to initialize-settings
% z- C' [- j9 b6 R8 o: [
* I+ E9 N' C' t: l* t$ Yset global-reputation-list []
4 s$ m+ b5 t6 Y0 b: r9 H5 [" g0 l9 N
set credibility-list n-values people [0.5]! Z2 C% x, T; h' z* G
4 T/ G7 Y, v8 G% l/ e! U" A {
set honest-service 08 X) P q2 Z% ^( B9 B0 z" }
$ c9 U# a y' f+ l' dset unhonest-service 0
& W! v6 A0 Q* q V5 Y+ J) c* Q8 |* ]5 A, a
set oscillation 0
" \/ ]/ J9 P$ G# u5 ~2 m# y
" P5 ?! a" U U# v; N) kset rand-dynamic 0& e/ q8 K0 `" M# Y
end: N T% ?" W. C' h
; T3 V1 f0 m5 h L5 R
to setup-turtles 9 a* Y% u0 X1 r3 P6 ?
set shape "person"4 ]3 \/ v' W! a# |( S( R
setxy random-xcor random-ycor$ N( F* G% I1 L% l# Y
set trade-record-one []3 c6 B( J0 A3 X$ _9 H
) ^+ @( F3 Z% Pset trade-record-all n-values people [(list (? + 1) 0 0)]
0 h# t1 s/ T; Y0 d. A) C4 g# t9 K8 q' k1 M1 r1 @
set trade-record-current []+ z. `/ k3 X* V& u; w- p* ^" M5 z
set credibility-receive []+ \7 l+ h6 K y9 U6 I3 o5 ^) ?5 l
set local-reputation 0.5+ }5 u7 e; b0 s/ Z+ v
set neighbor-total 0
( @$ t" ^* S) I1 zset trade-times-total 06 V3 x, Y- ]% v ?
set trade-money-total 0
" _* b! |" n) z# [9 }set customer nobody' [& l" [. u, H% M: w/ {6 C2 \
set credibility-all n-values people [creat-credibility]" n* }6 U! |* m4 e) H% Q
set credibility n-values people [-1]
8 E t1 y: n+ k5 O2 P( Y; Pget-color
* ]# A6 |2 j) S" V- Y* n. S! j- c7 A1 r/ h' I: V
end
K6 P& l4 W4 b& N6 Y2 G; W
1 M$ d3 Q" P' S% }. Y4 hto-report creat-credibility
3 a. M d& ?* @9 R* preport n-values people [0.5]2 Y9 \! w0 X( E2 r! n3 X4 H
end A/ G& s+ x) |2 I2 ]6 @4 l1 v+ h
: D6 \) |0 ]7 i0 `9 a0 C, V
to setup-plots- t B- X0 _4 X, d, x
. C4 v' ^: M' N tset xmax 30" }' l" U& Q! G# X" I' E3 r4 K: I
* N3 v9 f7 ^: G1 c8 ?
set ymax 1.04 D4 G U7 I* w5 ?- [. ]
. H1 P+ { z1 b4 D9 A' Qclear-all-plots% K) N2 V9 B* \6 |
: h3 g& H4 {: P
setup-plot1
. V5 ^; _7 v# f. H" _9 p( k( ]
6 U) I4 I* F3 q: Psetup-plot2
% Q4 @3 f/ N- } z! E J/ l; ^& j/ `
setup-plot3
! \7 V! h/ x/ I% nend- A: Q4 p7 T+ E% v. ~
4 j* K6 D. L+ s% V) _: p0 C! G;;run time procedures
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to go
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ask turtles [do-business]
% |) K8 Y/ A8 V1 I6 G0 c8 o, uend w8 x. _; {) M9 W) |$ y
4 i6 ~2 P4 J2 ~) k0 F7 U. Qto do-business
& m2 O5 h, F9 a/ Q" B6 d" I( B( c8 y
' O% X: C2 _, {9 @9 S- m krt random 360
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j: P* ~1 x5 K. W; ^* I5 A2 Tfd 1
" s/ y! }& L# b& ~: z: V/ }2 @4 U1 R& X* g
ifelse(other turtles-here != nobody)[
( F7 c: I5 j$ @
7 ]: A- K2 Q4 U7 m3 B' V; zset customer one-of other turtles-here
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;; set [customer] of customer myself$ {8 m! C) N( r% z: i
! W, w) k, K/ ]3 V3 X/ k( Z
set [trade-record-one] of self item (([who] of customer) - 1)
$ S$ R$ L% Q% A9 z. W, z/ x! F[trade-record-all]of self
# F7 k7 O3 A R& j, Z;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self2 H+ I3 P6 C# C( ]0 ~
. ] }) v! n) F2 ~) j% k/ A: {" G: _
set [trade-record-one] of customer item (([who] of self) - 1)# W# M; J/ N/ p
[trade-record-all]of customer
; R1 _, u* A9 e; r2 h& a0 E
5 i; j1 g; C; q, Aset [trade-record-one-len] of self length [trade-record-one] of self- v% b4 ]3 H5 z
* `* o, V/ ?' B/ v% H
set trade-record-current( list (timer) (random money-upper-limit))
' y9 o7 Z( {$ x# K0 h/ Y2 z% l0 M5 e3 t0 Q4 [# R
ask self [do-trust]4 Q% ^# K" E* ?5 ?8 o; M
;;先求i对j的信任度
( Y! p* T2 h$ y
7 U: W8 g/ y, j, p& ^' jif ([trust-ok] of self)0 Z) Z0 \" X4 S' n
;;根据i对j的信任度来决定是否与j进行交易[
& O9 f; ]( U9 V" Q+ h5 \ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself& j4 l. V( i1 n' ^- M. @
: f( `& x. S" D! B[1 v( @$ f- W8 T& e* t
" u+ B3 J& d# J$ edo-trade
5 I) W/ a1 S8 L" e8 A6 F W
1 x9 e7 x1 t; v. s& e& T( Pupdate-credibility-ijl
5 h# m& k9 C% ?( t1 m% r+ q
0 g4 R' `, j4 L* Lupdate-credibility-list
9 T* m1 D8 t g; G; ]- W' T
4 ^) @9 W# \) ^; V
/ |4 f6 O) J% R7 nupdate-global-reputation-list
' [+ n6 s2 X# N$ \4 s' ? I; l9 Z0 L1 s2 ~4 Y
poll-class
. X$ o7 L a+ I- V' n
3 a! ^; a9 b ]: z, I/ r- d3 a! Vget-color, p) T# z* P0 k# @: Z. w1 q) c
1 A5 L& L, L# O1 x5 [. m
]]8 }- ^, q4 s, {- p: n. ~
5 ]' _; P. C7 W7 g" \+ t4 i
;;如果所得的信任度满足条件,则进行交易
3 F7 M: Z+ @* P) j$ o% @0 W
3 ]) l( a+ f7 g3 m# D+ i[
$ e( W/ U- h, T" D3 M$ ^$ ~$ \/ I! ]* E2 @) [* w
rt random 3606 m$ s% x( w1 A/ Y
5 z: g9 o/ A6 [2 d' r/ i# X& rfd 18 h; r0 n) @& @* _
, G, h& M9 t0 Z/ {- U4 Q5 ^% x
]0 D( G2 B, n5 _4 C5 f/ ] ^
1 Q( V$ G2 y' s# N0 L: dend
6 n# d7 {+ K# Q! ?4 z
- y& k+ j6 X2 R4 g# I6 U: _to do-trust
+ n6 _& u) _8 G, z' u$ P" tset trust-ok False
! o$ ^& v2 U* i' m) l, m( D9 C0 c: Y- g1 v
0 f3 U. o/ }# alet max-trade-times 0
- K. N6 _( M& s* Y+ I" Nforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
* A" s3 \, z$ }6 S7 Vlet max-trade-money 0! j% I' l8 U! y+ c% T' U
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
8 s. Y- f, i: Wlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)) U A9 j( e3 V6 t3 B9 L) Z, O
) h' ~1 F3 r. J h# N0 C. C- z& d& n, h. y, G
get-global-proportion! w$ p0 j- U& D2 n4 |% ^% @* @% A
let trust-value
2 o. p9 ]8 Y4 D# alocal-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 |/ U9 m$ l, c6 o4 f2 _* @if(trust-value > trade-trust-value)
; V1 [0 n9 d3 j[set trust-ok true]: q! D9 r8 F- }" S* A1 m% {$ c
end
. c- s5 P, b+ Z/ a, h+ d! q ]8 W
6 V Q5 C$ g; ^" k# ^; r" Vto get-global-proportion
- u1 Y( ~" N6 M) U) }# j6 eifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
9 L7 H& t. r3 \3 x% S) R% J[set global-proportion 0]
$ Y* c0 v2 @) J0 m8 O! u, |% M/ [! `[let i 03 N2 k- E7 j4 v- Z
let sum-money 0
6 [" A5 L; \2 \3 s# gwhile[ i < people]$ ^5 u' @2 y( U$ X7 w2 ?
[
+ Y. {7 {% k- U' r5 kif( length (item i
+ _. I. p6 Q: p0 _2 h+ P# o- c[trade-record-all] of customer) > 3 )
" R1 T& l, W0 X) f[* y& N/ b; G7 o& Q Q7 r0 ~
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))+ F; V3 h, e; h" ~
]
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let j 00 f# p) F, ^1 l1 C1 H: B" z
let note 05 x$ x% w0 k! `8 |3 b1 w4 K
while[ j < people]! U- v: \/ V! [& F" E
[- d% C$ [, Q4 b0 _$ m3 a9 d
if( length (item i
# j1 a- Y' }3 U3 N$ B( q! O[trade-record-all] of customer) > 3 )
6 z( Z7 m- B, v+ C- `; Z" f[4 e$ {8 M, Z# R- R. W9 ?/ c
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1) R/ A: A. G0 O, l" J; T
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* l1 |2 p- e% n% H: d5 x; _! e[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]- |2 T. J$ s5 C6 c
]
! V; d8 I8 K. c& ^# @]
7 a6 F& e, B' G# ^1 ?set global-proportion note
% ^' A2 o! N4 U1 \8 n]
: }- e4 ? a( h+ Gend
6 d: E# x2 _/ s3 ?8 j3 j5 o7 }/ m' n: \3 h5 H8 [, G
to do-trade6 _- n! [% [4 l; C9 T ~" ]( l: i9 y
;;这个过程实际上是给双方作出评价的过程
. a9 P: R: H! Q# }$ j }. Pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) c2 o. z X0 A; ]5 Lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
9 T% R0 y& ^+ I2 N9 X: ~" tset trade-record-current lput(timer) trade-record-current m, ~5 M! @( Q9 j+ j' r6 r
;;评价时间
9 i6 K3 I! v- M/ G" fask myself [
$ }2 b4 }+ r+ y, ?8 ?' jupdate-local-reputation
# [* V5 p: j" uset trade-record-current lput([local-reputation] of myself) trade-record-current
4 c" E: t& o: n: N]1 p# O/ p; {6 k
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
) B% L$ b, N; P T; f+ C;;将此次交易的记录加入到trade-record-one中& M# x7 O: L1 |& n% B
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 e$ T9 P6 ]. Q; w0 R
let note (item 2 trade-record-current )
7 I8 n- Q* E$ u* A0 C9 Mset trade-record-current: l q& ?6 L) Q; C
(replace-item 2 trade-record-current (item 3 trade-record-current))+ y( Y- ~5 ]! ?! i& \6 w6 }6 c9 a
set trade-record-current
7 ?- l2 y( }8 x(replace-item 3 trade-record-current note)* {9 s" Q6 B5 p( k3 w6 f
, n; v m: S3 M9 T
$ y, G) X; z: w
ask customer [
4 W4 l4 m' o# h; u4 e& Vupdate-local-reputation
! H1 L# g* [, v/ m4 C- f, Cset trade-record-current
; c& e+ v$ d+ v' @" o(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) % c8 W; |7 \# |! A
]
/ k' e. I& E E7 W1 T
3 B0 M4 z8 ^6 h. h0 k+ I6 y) d6 @3 ^
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- s4 f& c7 z; z& i- [' ?2 n' k
; v9 u( r% w* w& @* U) j7 C4 }set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
( ?) C l& n' g;;将此次交易的记录加入到customer的trade-record-all中
# h6 @* J z1 ]; W" Y) send
% U% r2 w2 K+ w& h- z
( s4 s" w M ]4 bto update-local-reputation
& m: H0 T1 s) [; g D. vset [trade-record-one-len] of myself length [trade-record-one] of myself7 [& l- I, f9 }9 q( j( ?1 D
0 G5 |) M. q3 l* w
5 J4 D8 u3 D4 n* \, m7 V;;if [trade-record-one-len] of myself > 3 0 B3 t6 {$ m5 d- X H+ n
update-neighbor-total, w+ d" M1 B( n+ w, \9 e# E5 M
;;更新邻居节点的数目,在此进行+ ~) m, |) W7 n1 n2 q
let i 32 P) A, t% D$ f+ N
let sum-time 0
/ a% C! r+ ]/ ]% l+ Twhile[i < [trade-record-one-len] of myself]- ^1 L/ b6 ] Z5 d' B
[7 D+ v" r+ V. f5 A+ G! B
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
S, V0 N, {& g, k( Z) T c6 mset i
& y S" P$ u- a7 y4 A5 x# b( i + 1)- I. R4 o& P" W
]
0 X+ U* h7 y) P" t" T8 g% `. F+ @3 blet j 3
: I- f2 ?$ S h) a& S; ^: klet sum-money 0' I9 N8 `1 y" V C
while[j < [trade-record-one-len] of myself]
# x8 g: x" w/ G: m, |& P$ d+ V9 L[
' K+ H1 a% ~- c) u( Q; {% [% p. Jset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
1 o; V2 n' V# gset j4 f F% C$ k9 |* q4 ]! v: _
( j + 1)6 `5 B0 o) Q% `* j: h, }9 p7 r
]
6 W6 K) s3 j) C h/ ?0 _let k 3& O- j- x' p3 O
let power 0& D, Z# m: `- G! F0 b; I* x
let local 0
7 B- M! j" M5 @* _: x7 ~while [k <[trade-record-one-len] of myself]
/ z4 u0 ?8 Z( ]! f% [0 T[
) d; y L, F3 j& L& Rset 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)
# B$ ^9 Q5 J" @1 ~8 N1 ~+ uset k (k + 1)
9 R& g- M$ w$ Q p]
+ H' s6 T q+ g, y( wset [local-reputation] of myself (local)7 i8 Q8 z* b. N; B0 u8 A: q
end
, q5 B! l$ H5 E7 _( A+ y, |
/ }# d( D8 c: Q8 u( F1 O& Ito update-neighbor-total
" N( x$ G3 \9 K
& D) ] L( f8 ^5 ^, ~ J. h0 E0 ]if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ], w, Z3 I+ y$ j+ G8 E
$ @! W# D, d3 `1 u: w1 F( s) p% i. G3 f" }/ M$ f, ~3 y# s6 s4 y
end# l# M2 q5 O# C! U& C
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to update-credibility-ijl
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;;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。, u" D0 M0 ^2 n1 W8 h, u4 _
let l 0/ G. G' E' Z( C4 W# m8 p% P' J% L
while[ l < people ]
+ d5 @, m8 l2 S6 T; Q% f7 R) |;;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)5 M) k; h% A7 x0 L
if (trade-record-one-j-l-len > 3)+ [2 y6 p% r9 K. G- C
[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
! i& b2 F( V. {) I6 zlet i 3
( ], n$ j. x8 Z& i xlet sum-time 06 G$ r! c% E! t
while[i < trade-record-one-len]7 O# }6 S% A: n5 g/ z# V5 z' U& O2 z
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ) m- ?5 r, ~, `5 |5 N/ g6 \ _
set i
, r+ j6 Z) W+ h( i + 1)
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let credibility-i-j-l 0
% c' Z& n& z7 r" r3 ^) X* H;;i评价(j对jl的评价)9 M6 _( G( ~3 o
let j 3+ \" @" [1 j2 S, U( J% M! m
let k 4
' m8 \" C1 u7 [9 _, ~8 e4 I: z2 Jwhile[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! G/ r/ K7 s7 v' T |4 C
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)
( _2 m- k1 z. lset j
9 G! `2 J) X! c( j + 1)
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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 ))1 p, l: z$ h; z, O5 v/ S
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))5 ~) I2 ^: P B- `( ]
;;及时更新i对l的评价质量的评价
! |$ `2 M0 ~ R5 pset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]! e# j( {$ Y4 @4 h
set l (l + 1)
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end* O. P) U9 i5 K: f8 l4 P( g/ X
: J2 C! R# V0 Gto update-credibility-list
& J: V/ p- y$ S' |0 |/ N9 X9 Q1 plet i 0# h% t/ L% q+ Z4 X$ i
while[i < people]: I) x) f, Y+ F; ]) \
[
; w9 o0 ~( M; I4 i/ w2 N( ?let j 0
+ O Z' [8 ^6 X# t0 r6 ]% k+ j5 dlet note 0% o$ f) H# {$ g3 p7 I
let k 0
/ v$ s2 I. b0 ];;计作出过评价的邻居节点的数目
( |- H1 ] Z* |$ C" F7 s2 Rwhile[j < people]
/ t3 L9 H2 n! I* O[0 Y! S0 S4 _& w4 a$ U
if (item j( [credibility] of turtle (i + 1)) != -1)" k( L( L, W3 N _
;;判断是否给本turtle的评价质量做出过评价的节点
5 E9 N0 ^! t) H& T3 _+ d[set note (note + item j ([credibility]of turtle (i + 1)))' `9 ]" l/ m2 S/ Q4 l8 p- }% s
;;*(exp (-(people - 2)))/(people - 2))]+ S& G8 N( j9 ?; Q8 i8 x, T
set k (k + 1)- @/ O0 n* h$ R$ W# X* U, U+ z
]
# d1 g8 E0 {2 N( vset j (j + 1)
~" f; V- s4 [/ A& b9 i]/ s7 U* L4 t+ h! ~
set note (note *(exp (- (1 / k)))/ k), |! ~. ~8 T7 s" ~9 A
set credibility-list (replace-item i credibility-list note)
* `. H. ^1 F0 T1 T' d8 z" Jset i (i + 1)
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end
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to update-global-reputation-list
& N' i4 |0 H1 P7 u1 V! o4 k( Elet j 0/ ` \1 ] U0 y
while[j < people]
; V! z, X& X" A( l' ]' k2 e[1 m9 K8 i- G2 A8 [
let new 0
" v' @- ]8 W* b, b;;暂存新的一个全局声誉
- ?8 ]7 s# {* Tlet i 06 L2 \8 m C2 E5 S8 j
let sum-money 0
* L! N2 \/ Q# d+ k7 _- }5 P. Flet credibility-money 0+ X! p5 i" M1 ]( f
while [i < people]
+ L( M8 P: s1 c/ S" S6 v4 D( S& \' {[! m2 H) {* J& c6 M, K: p
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 f- d9 W3 X6 ~
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
8 d* l5 {# Q* L& z5 t* |3 wset i (i + 1)( A5 Q. S7 @. Y7 z2 g$ M0 m" {9 S
]
4 x# @* R- J9 n0 u0 W) u7 g- C9 `" y6 Dlet k 0
& Z N9 [+ l1 |6 xlet new1 0( d( g* X% H5 D+ \* R
while [k < people]7 J$ _% y; `" `5 C
[
$ N: \ _" H" S, F; k; ]0 I# |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)
! o1 L& F7 t+ W( Lset k (k + 1)! c% x! A: O4 b) l, f
]
, o, a. J9 z4 i; Iset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) # y" t- B9 \* a! r7 x$ d; H
set global-reputation-list (replace-item j global-reputation-list new)1 q. ~( j9 \* f+ _% ]0 t
set j (j + 1)
c/ V+ v% M+ m! b. x e% U]
& c9 E0 E8 L8 `7 R4 Bend6 d3 f0 \6 |- S1 _0 ^. l& l6 W5 d% D
) O) [9 l7 i- J. {& T1 N) q
( ~& ?( a C& Z f1 {- ?& L
) N1 K9 _# m- e3 P4 Cto get-color
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/ q% A3 m$ s1 r& a7 V$ S( xset color blue
; _" u* i7 |9 u6 C( z0 g d- Tend
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5 ~' ~/ o$ o$ b1 |7 b8 Cto poll-class
r) k/ S( T8 G! Wend2 Z0 m M/ o+ f4 F+ ?
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to setup-plot1# [( @/ T+ j$ Y9 Y9 `- j7 k
; x9 B- t9 }$ d, V) Oset-current-plot "Trends-of-Local-reputation"3 E' F! B- l& m" E! F
0 a. R7 d F. a$ n7 t! jset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax
* e, f- l3 @8 kend
y) j% v5 n& E( {7 [; V
$ T& M+ t8 \( o! Z# N$ V3 zto setup-plot23 \! g1 X1 q! z, V- w5 @
9 I9 n. S; f v7 L! _9 Zset-current-plot "Trends-of-global-reputation"
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" J- p2 F( H' B+ H6 O1 Eset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax: v+ ^0 \: ^2 @, t- d. A
end
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J N. Z. |6 k/ H U1 Z0 F1 oto setup-plot38 g! Q4 W( [. D2 V
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set-current-plot "Trends-of-credibility"
+ E+ ]8 r% k0 Q& K( Z* K
( [' o- B5 b) D% S. Zset-plot-x-range 0 xmax4 e8 s: b9 F% a4 y' V
1 h. ^9 Y" _, U7 Tset-plot-y-range 0.0 ymax
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# B( h# X; @* Z5 S4 D- Vto do-plots% ]$ k) u: P) J# d* Y' Y* u) |8 I
set-current-plot "Trends-of-Local-reputation". \# C6 \3 Z6 Q" U' H
set-current-plot-pen "Honest service"
: D f0 N3 L3 U/ u" {end
% K# l/ v% n% M& Z/ S } k' Y" v; q
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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