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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
! R, h1 T( W( S/ C) }2 sglobals[- S; P d5 W+ Q3 ]- S( I2 x# k; y) o
xmax# X1 g5 k. [8 }, B6 ]
ymax
- }5 R( G$ y5 m) s1 U1 R% ]global-reputation-list, h2 ^8 i3 L) }) K# I' H4 p
6 m. ?& y5 B, k$ n;;每一个turtle的全局声誉都存在此LIST中
# @& K6 n% q! j' Rcredibility-list) v9 l: j- \7 G5 I
;;每一个turtle的评价可信度% j, U9 z1 a* X$ G
honest-service
L& L1 v3 |6 n1 B& O" x+ Xunhonest-service
. B, F2 s1 }; d4 joscillation
7 g5 |. B# m1 |0 C; Q3 orand-dynamic
9 G, k" J: P9 A]1 S. q( T' u5 [8 v
- K4 d7 {$ o% f9 p/ A& A
turtles-own[5 r/ g$ z+ U; m# X. m p5 T
trade-record-all
6 o; C$ `' X2 L# {;;a list of lists,由trade-record-one组成
" T, R" l- j" j7 mtrade-record-one
7 [* ]$ \5 j0 G! R' H' };;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% d2 z: o7 {- h' T# l5 d6 F0 A! n$ Q( Z' 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]]! T: x- l, l% f
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]" @2 F; q$ u: t2 L: `
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
9 p1 t$ G# H" Q9 K: Oneighbor-total
1 X( O4 v3 @! C2 B- M" F;;记录该turtle的邻居节点的数目
1 V! \+ H7 J% M, B& z4 H: Xtrade-time
1 M3 P. t' R; Y8 Q* X;;当前发生交易的turtle的交易时间
2 }$ Y4 }' k, i8 nappraise-give
! F$ f" T! ]1 w( \* R7 V;;当前发生交易时给出的评价
# ~! g! T& o& e: q, Eappraise-receive
3 H$ M1 \& Z/ x y;;当前发生交易时收到的评价( C+ ]1 H3 Y) r
appraise-time
( ~$ T4 E& L* M! @;;当前发生交易时的评价时间$ O9 y* S/ ]. w
local-reputation-now;;此次交易后相对于对方turtle的局部声誉 ^/ t) C$ u9 m5 h* w" ]
trade-times-total
6 [7 D) R7 a9 _: M$ k;;与当前turtle的交易总次数
$ l5 `& x" ^3 o# o2 {' m6 i N9 dtrade-money-total6 M7 |, @4 t" y2 q; q! N
;;与当前turtle的交易总金额' S( p, C8 f' E* a3 ~& Y, m; E
local-reputation
1 T! s* A( n+ k1 U7 [6 cglobal-reputation
9 @; y# g* _- V, jcredibility
% d$ X, c" W% _/ O7 f. ?* k;;评价可信度,每次交易后都需要更新
4 R. a7 W) M; ]+ ]# Dcredibility-all( o4 O8 V4 h" T9 e# B9 P
;;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
% |; z5 L; @. l+ k. P- Q1 N7 r# [ |. U! l6 p u2 x2 f0 E
;;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* R" Y8 V n2 A% f
credibility-one1 D1 H) [) e" O/ D% Y0 T! _6 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3 o( P7 \! l; v1 I0 o. U
global-proportion# W( c8 H1 a6 I! k, R
customer
+ }& o/ u* H8 k1 }. C5 Lcustomer-no
) x$ T6 Z. @7 {* _: @1 _$ z9 Btrust-ok9 M- S H' R- |8 _8 Q' m$ v
trade-record-one-len;;trade-record-one的长度$ K1 t% _ S+ V
]& V8 H+ h) V& {$ K$ n3 X ]
% i- e1 h5 \5 B) b' b0 `
;;setup procedure1 ^: c; `7 l( n8 G- E
& v* J3 H) q) B) M' C4 ~; g/ rto setup& a7 g. L( R! N8 a
( {9 R% V; }" |. lca
1 a. T' `1 A% M/ Q. ]/ o8 r! i+ c' B! u H1 I
initialize-settings( i1 @% K1 l/ u) F6 ^) D0 B3 q
4 S% Q% D2 c ]' X' g
crt people [setup-turtles]
6 n$ f/ u* u; @6 t4 O- |# I: w4 n# q% H$ l5 b, R
reset-timer
+ k |/ m' y, @$ E
1 Q3 E$ ?9 A, x; Ipoll-class
7 `* `; @' F b; S# {
; H9 F# K* Z) ]) Q! ksetup-plots v% D! w" I* D1 Z+ m
# \# ~7 ? u, ~; r* y
do-plots5 s4 Y! m& i V& ^, {; v4 q7 ~
end
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to initialize-settings
4 Q3 p8 m2 K n# p0 H
" @, D: U* m1 M$ h/ i6 m! `( _set global-reputation-list []
: p6 F: s9 f8 x3 [/ T! S/ \# _7 d4 W0 F! I- E! t& k! O
set credibility-list n-values people [0.5]
; S- Y( e2 w! q7 ]& n3 S" f4 N. R( q0 D' _7 c; R: n8 x
set honest-service 0
9 F$ W0 ^& l" e6 N, n4 U( q# w. B1 L$ a7 u
set unhonest-service 0
( d- x7 N5 L% e* F" g
% p' ~" |' |" J5 rset oscillation 0
: F d- c- u; O" E$ f: ]$ C) f. Q5 z
set rand-dynamic 0! c O8 k u; r/ i6 N8 n( a
end3 g/ y k7 [9 Q& y8 L- M
1 {" `5 Y- x' D2 O# {7 y: y% g
to setup-turtles 6 A+ M/ l7 f3 {! U
set shape "person"& s3 e$ b, f& \2 k
setxy random-xcor random-ycor7 a' s5 n& U+ W% n+ r% P
set trade-record-one []
5 l, {% u8 K* W3 |; |* x8 s6 a9 M1 l
set trade-record-all n-values people [(list (? + 1) 0 0)] 0 l t e; I# U9 O( Q* ~
: |) R# j P: j/ x/ e- w. G0 Z/ jset trade-record-current []2 V! x x3 A. ~% A% B4 d, z
set credibility-receive []7 @2 Z- I# K$ M0 E5 t
set local-reputation 0.5
: O, p* n" c9 D/ |5 U5 v D# Gset neighbor-total 0- D- @7 c8 S' U
set trade-times-total 0
+ _9 A8 T: R; \0 H9 lset trade-money-total 0
) |2 A% f, |# W$ u0 }set customer nobody6 ?; ^9 d$ _0 I. z* c
set credibility-all n-values people [creat-credibility]
6 Q7 j, c" |/ f1 o+ i9 Mset credibility n-values people [-1]
$ h2 v/ A ?; u3 @9 e' ~! jget-color
- S9 R# h4 Q; v+ Q" E% X
4 K! E5 b6 f9 D7 T( y m( A+ O* C7 tend6 z- [+ g7 A9 ?
6 |0 s! T# N0 p4 B
to-report creat-credibility
. ~! S% \1 `' `& H9 P1 n4 ?report n-values people [0.5]
: K; F4 X7 M; I1 wend
9 U x$ \, y8 R
1 A2 Y4 M+ S) q5 @5 c# ~to setup-plots B+ i: V1 ?4 W- z& P' [" W# |
) Z8 l% O& U2 A
set xmax 30) N4 {6 G/ F" `
) {( ?* E W5 I
set ymax 1.0* B+ V _6 Y) e9 I9 f& c
9 ^$ l+ t: j' y4 z1 Q6 _& qclear-all-plots
% H6 l. M! I! k1 c: Q" V* D! r& c3 F4 M% ^* O; J
setup-plot14 h6 R2 w, |7 r& N; s$ V( j. w# Q
) W5 q& q% f8 z0 `! q6 g
setup-plot2) U) z9 ~2 r7 E2 ?) Y
8 D; G0 ]2 H L7 a
setup-plot3
+ y9 y( O4 L1 s0 Iend
; I% G. V9 p- t5 M! k5 [
4 u3 }' D8 G3 L! A$ i% u;;run time procedures
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4 n, Z! Z3 y+ K2 s; J9 o. Gto go# `- D" O/ C' P$ m9 W. \( ]
5 \6 |4 i% B- u4 {) L" o( ?7 d
ask turtles [do-business]
2 [* q, \( y7 J/ ]end
2 i; v) \# B4 B: A/ A4 ]( q' Y+ ~7 [2 A' T& z# X
to do-business 1 N3 U5 w& J. ~0 u' y( k
5 u3 Y4 `! a |8 K6 j0 u6 _( a s2 _: i. r
rt random 3602 K! }, ~$ v$ x
O% a" Y( B8 n- U8 G
fd 12 F+ A @6 j& K; L. P: ]5 q
' h6 |, {. Q3 X, b( ^8 ^' Jifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself; O; A6 _+ s' c# Z% i
) v4 j6 t5 y( P' I3 _ oset [trade-record-one] of self item (([who] of customer) - 1), O7 u6 [, L& m8 l' _
[trade-record-all]of self
! d" c" Y9 E8 f9 T: W& F;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
9 d- x/ J3 @( @# x, r; r3 v# h$ {- }: ^3 }, @9 p
set [trade-record-one] of customer item (([who] of self) - 1)
$ L' x3 h+ a; w2 D[trade-record-all]of customer/ X( q+ p1 W( F; Q$ h
- D2 C z2 d' g7 q' b1 v1 rset [trade-record-one-len] of self length [trade-record-one] of self, |, f8 S/ M# ^ v8 Z% ~
/ `) f* \$ B) Y9 ?2 H Hset trade-record-current( list (timer) (random money-upper-limit))$ B9 k8 o" r5 u3 ~6 ^7 t
: U) M5 x6 O8 Task self [do-trust]
+ y" y; H+ `, m; r, ~+ }. O0 N;;先求i对j的信任度1 a( g! k* h1 S5 J3 b
. g( E4 b& `5 Q" ~if ([trust-ok] of self)0 I3 e0 G! e$ j0 F- U# H
;;根据i对j的信任度来决定是否与j进行交易[
' z0 g0 P" X4 c2 ~, A$ jask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself- I$ d. S8 Z; E1 }. c
* {/ |2 B3 i: p! m+ |0 V0 S' B
[3 M. R2 ~7 L- Z! E* I" z. Y9 I4 D
$ ~. V3 H; ]1 S4 Z$ Q" ido-trade) z" p$ }% ^4 ]4 M O+ y
: J( g6 \* v; M3 {* i+ D) qupdate-credibility-ijl2 v; w Q5 G+ |
" c# t/ H2 [9 Q$ N9 p: ?update-credibility-list2 m7 d8 Y% k: A C
: _7 _. Y: f% ]1 R4 `8 i
) Q H; |. G9 C" Eupdate-global-reputation-list
2 @" G; C7 n3 k* r+ V+ y3 M; @+ r# X
: O. `/ y& t r |/ E% ?5 _; `poll-class
/ X0 h' C( t( N. L7 B5 w) w! x
9 N% e6 `7 t8 m, e/ }+ ~get-color
5 D8 G0 k/ g1 L/ L# j4 E
3 S0 o6 J" S% V, e. `0 {# |" h) o]]
$ d; z3 |3 `" e& m5 u* i/ S3 ?" q2 q: z# m" X& i; M. q
;;如果所得的信任度满足条件,则进行交易& Z; ~0 I k) t4 K
1 {9 E" T& c& E8 s" h7 `[, e! `. y& x/ B
8 v; p2 Y! b, U- r$ `5 s& X. nrt random 360: M7 b- V8 r7 u5 O& P
' B x, _( y) F" |fd 17 ^) `, P; s. g3 f2 R8 l# v
?* z+ L t ~2 C7 O
]
* i! {; Y9 h3 L/ _' ~* F- [( Q' s6 w8 I3 t; `
end
% N+ n+ ~8 c% k0 d
& s+ A8 C: D, c9 i3 fto do-trust % Z" f7 ]' O" z, k& N! U% F- ~# P' B
set trust-ok False& M! |8 ~- Z% b8 ]
E1 Y H) X0 d
/ ` k: J# Q& _0 j8 p7 elet max-trade-times 0
! f8 [7 N+ d7 H; g& t b* ~; o* mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]0 [( h/ `/ t8 ^4 ~7 [
let max-trade-money 0" N! ~6 t5 M$ `- H
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
( A7 J% \6 b' `6 p& G5 y0 ]9 i: blet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)); G4 i9 O+ K7 T# S% \
+ W0 ^% q" N3 A; E+ w3 Q6 F) I6 t" b4 z
6 c* y* x; y9 t# `1 ~get-global-proportion# t' X- j0 C2 g+ H
let trust-value8 |; Z4 N6 W7 _. W
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)
/ a0 a: n; z% S/ X6 G% ]4 D. `if(trust-value > trade-trust-value)
2 e) d" c+ B/ I9 R( k _[set trust-ok true]# O: e7 ^( ^! k# U ^
end, B c/ u% ?: F+ M& ?6 k2 I
2 ? s8 R9 T0 ]3 S: d# H
to get-global-proportion* A& w. A" C, T- ^0 c
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)+ K$ U! @3 @/ s; k; S
[set global-proportion 0]( b2 ] X% h6 v) F
[let i 0
Z4 j/ h3 e* x' olet sum-money 0
; |, |8 @. k! @while[ i < people]1 j# d) O+ N- |7 ]
[
0 ^5 F5 y% u( o1 |; [7 hif( length (item i
: R- N; R" G2 e0 X8 d[trade-record-all] of customer) > 3 )
. f9 F) K% Z b% _ \, q; H[# y+ S) Z& V* R$ f
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. t- N- R" o! K: E* |- z$ @]
9 ~2 w9 P! Y0 c+ C; A: L/ n]
7 r7 i2 q+ w# Clet j 00 D5 f: M! v* @, @, e
let note 0
. W; j' P& p6 f: [1 Gwhile[ j < people]
! ], C- \# Z" A" j0 g- U! ?[% w0 s: b( {4 g( c5 _3 w& J8 g
if( length (item i
2 E" @" R, v$ ^[trade-record-all] of customer) > 3 )0 s* ^/ x# J# i
[6 u; r, Q" i X
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
; b; g( f% F! D, z# l4 ][set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
6 K7 `0 R+ e9 [0 D[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
% G, h& k" j4 |) G4 j]
9 R5 g( I( p; _]7 \$ N, @9 u' D) H0 ^2 l1 w4 X+ _
set global-proportion note- J2 n8 z0 j5 y3 X5 f6 ^1 u
]! c& j9 a3 B/ H# s: Y2 u2 Z
end
% B6 h! Z, S/ d) H% Y" C9 Y6 y- J% D' I& D* W
to do-trade" H! M% y* ~0 d$ Q
;;这个过程实际上是给双方作出评价的过程. u z2 s' x' \: ]) G
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
+ Y! a! F2 H a0 m z0 Rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
. M, a2 R2 k/ R+ Mset trade-record-current lput(timer) trade-record-current6 v' o V+ X( P/ h2 D9 t' h1 N
;;评价时间
& {& p; w i8 F, b5 Wask myself [8 t- w$ `/ D8 N. D& p* ^5 l# m l
update-local-reputation/ U- c( I. s0 r( q& Z, ^. ~: Z/ |
set trade-record-current lput([local-reputation] of myself) trade-record-current k! u* v! I3 c7 h0 G2 f
]
x/ c$ `# Y) @6 aset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
' ~& q$ f0 W/ i" z5 X;;将此次交易的记录加入到trade-record-one中
: k! Z, w* i" V+ uset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
6 I. T1 ~7 e2 N$ Q. r7 X, Klet note (item 2 trade-record-current )$ i T5 e7 A; J* O- `
set trade-record-current
0 p: ~; M& f: t(replace-item 2 trade-record-current (item 3 trade-record-current)). \$ h3 {( z0 w3 s+ n* r$ _* F
set trade-record-current
% W' d9 X0 }# M* t* w+ V+ p" Z2 j(replace-item 3 trade-record-current note)) R: G! b' B1 L8 [5 P/ i2 X
. W2 G6 r! O! D- A; t s
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ask customer [* i" m, S, ^' ?: V5 k; l' r. s
update-local-reputation% ^0 w2 I* u. g0 x! t; ~( ^) z
set trade-record-current, {) e2 M! [6 U: l
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) # G b% e7 W, A c: F# f, C
], ^8 ?; E0 S! F' |; K
" k( D d; w8 e4 W; C% W7 Y+ ?& y
0 P/ U2 j) c3 Q4 G: \8 T
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer P, a1 M" b. r4 Q
* h$ W. i! W; \; }5 Uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
) o8 F# H3 F! U0 e: o3 s- C5 x;;将此次交易的记录加入到customer的trade-record-all中
; h4 m6 f' o: S! }- V* _4 |/ Jend k {" H9 z, [, S
1 z/ m% o! E8 dto update-local-reputation* L: x# {! _* p. Q; B
set [trade-record-one-len] of myself length [trade-record-one] of myself+ @/ a c- h4 @3 M% V6 e5 y. o
" x& }: a% U2 G2 D5 H8 ]
- n7 N6 C/ S, v) b1 s1 V, U;;if [trade-record-one-len] of myself > 3 ! t9 S' E0 K. ~# G. k6 v: E/ O
update-neighbor-total% |- K$ y q2 v' l$ @
;;更新邻居节点的数目,在此进行; g& a- O. k% }5 r1 G2 `( F8 j
let i 3: h0 G" D$ x- F* ^) Y
let sum-time 0
; O3 b3 R: C" @6 T3 U. S5 e6 E' dwhile[i < [trade-record-one-len] of myself]
! P9 J5 J2 C8 @9 C8 V$ j' v[
5 r) l6 N9 O1 ^" s( n( nset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' N% S2 L7 W, ]1 {/ l# |5 l
set i3 a! t- n s9 Y4 P% y* @/ V) O
( i + 1)2 }7 ?$ _! |2 Y" _& W4 `
]1 a8 `3 a/ J" l$ T+ s: H
let j 3
4 ~: p5 Z- e" Q7 d7 b0 dlet sum-money 0
; C# ~+ y' |- ~, X2 p4 I9 V) Q0 Nwhile[j < [trade-record-one-len] of myself]
5 Z+ T' H" b ?# _[- z2 `0 b# p' O) w) W
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)
" f! K, J! [$ y9 w2 o' {, _set j
0 w& o) Q+ l8 f1 e8 Q( j + 1)
0 N, u- B% M. X8 A. |. C3 O$ V5 c]
+ \/ W: y) w- X1 U; L+ X4 B% u3 `let k 3
1 b0 ]" t* g, d# ?" G- Ulet power 0
6 i/ g3 p k7 U; u( ilet local 0, o7 D2 V4 U* W% o3 X
while [k <[trade-record-one-len] of myself] C. I* a/ d" I( q
[
/ q0 L) @% @% f1 `5 v5 e" y9 Dset 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)
4 c. H- e; s3 @2 {set k (k + 1)4 [3 M' f6 A4 w; c4 x
]
; m. u. y/ K# f# t& h3 H" tset [local-reputation] of myself (local)
! `. Q# Q# t2 T2 Z0 W- ?end7 D( Y- p- M5 n
. [3 R. {! q [2 U7 A: W
to update-neighbor-total4 h. ~9 C6 B0 f- r$ R
2 ~' k) z7 X7 ~- Lif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]; ^" p) z- v0 [) G' B0 M
B$ Y' B2 N0 [
1 N+ t7 ^8 M! ^7 C6 qend: r0 ?+ p3 ?7 ^ |
' h. k& @! Q$ V2 ?to update-credibility-ijl 2 v6 u- u& y* l/ z* X p
2 _2 q8 J# U+ s w5 g+ {;;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。1 r# E" ?& E- Z4 [% G
let l 0
6 P3 H( U: I. j; Xwhile[ l < people ]4 m# V+ G) ^% z E% ~
;;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: {# E8 O) f- f, @6 j$ v
[
E8 w9 N' E) W5 g2 rlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% ]! H! M0 J9 [8 {* sif (trade-record-one-j-l-len > 3)
) |1 N& @: ~5 c4 P& z- u4 l[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% U% q: M- E3 C" \$ p
let i 3
4 l( B" B; ^2 blet sum-time 0
. \9 i0 |! Q4 V0 Z8 _$ f2 @/ Ywhile[i < trade-record-one-len]9 G) X5 t0 T/ f5 P* y* W$ H
[
; }4 F/ v1 n2 ` E% R' f7 R2 ~set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): G& d( d8 j/ I
set i% `( _$ ~$ w2 j/ ?* d3 k
( i + 1)
, r" ^3 o3 ^/ E/ Q g" [+ y]
" b2 z- p: C1 s/ X3 `, rlet credibility-i-j-l 0
+ r& S( `! Z) a4 ^3 y+ B;;i评价(j对jl的评价)* y' s0 i2 d) O) V2 O$ r" }
let j 3
* s8 X1 O- M! `' @* T! s! O4 zlet k 4* t# n1 Y3 r$ v, c1 l. B
while[j < trade-record-one-len]' L- G- S+ [- G2 Q; a9 }
[ X0 l6 w6 e/ c' O8 ? V
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
7 M& n) g8 n1 u! N& k5 }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)
! W6 \. N! c. Eset j
/ C& \; G6 j8 ~+ h( h$ P( j + 1)
0 A5 |6 U& ]3 D. []
/ ^! ^9 j7 E* V( O/ R# F2 Yset [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 )); F' a, v P( N, ?& j
9 X, K, f' A& B5 n
6 v" M H T1 {! r5 ]- V8 Zlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
4 f( {0 f) S0 G8 C5 T- f;;及时更新i对l的评价质量的评价, V( s \+ M: Z0 N9 K
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]. p" ?; _- L' T F
set l (l + 1)
u3 N k$ b$ l5 z; O- k2 O. i]
% g \, @& q$ c/ y5 o4 Nend
4 q& f5 u4 ~, D7 i/ q6 o$ }5 J F$ j A
! C: S% ~/ X0 G- Jto update-credibility-list# h) |) l- j# x( n0 A
let i 0; }% f$ M- N4 b5 ~/ i: a% ~# |
while[i < people]/ T, [" G2 p/ U( ~, S6 H
[
6 y2 r! S# i. d4 _) slet j 0
8 e( l* Y$ Q rlet note 0& l6 y0 B4 O" [9 N2 P5 Z
let k 0$ o+ ]# _6 ? {( f
;;计作出过评价的邻居节点的数目
% k5 W" B3 H6 I9 |/ n- nwhile[j < people]
9 U, D7 x3 D/ G; P n8 ][) M, ?2 L7 Z+ |+ T: G
if (item j( [credibility] of turtle (i + 1)) != -1)
5 t2 O! o' \; t; e3 \/ ] a* `;;判断是否给本turtle的评价质量做出过评价的节点" z7 Y$ M2 V- f3 e; M# X2 e1 L
[set note (note + item j ([credibility]of turtle (i + 1)))! V$ R- z2 ]9 r3 u* Y
;;*(exp (-(people - 2)))/(people - 2))]
$ a# F4 r' t. c5 `set k (k + 1)4 W) B/ ^ o5 ~- x8 U2 R+ k- |# O1 g0 _( s2 @
]' m" o- ?; B' R! Z( |4 v w% S( x# q
set j (j + 1)
/ P" v3 i5 o3 O! b# F- E]
$ Q$ Z8 s7 `4 z. B; \5 |, n, {! N/ dset note (note *(exp (- (1 / k)))/ k)
# B4 S" x- T2 x$ R3 iset credibility-list (replace-item i credibility-list note)
* d/ Z5 \. u8 Cset i (i + 1)
: ~0 x7 h z7 B; ~- x% \8 E6 ?]8 C/ ^# Z2 Q$ I" _0 f- g
end
( w* F5 i v' M; U
: h" ~" S0 \% H& S6 [$ hto update-global-reputation-list: C& u) ?; @, I5 H5 T% f0 ]& O, z
let j 00 }/ k# e& T; t& K: v6 {
while[j < people]
0 x( }1 O" W ^7 g- D! G' G[: {) n% Z6 l! U$ ^# D
let new 08 i% u, B# ~) z- H7 `+ L+ m
;;暂存新的一个全局声誉
" U2 Q9 e- i& l' J% S$ ]let i 0
: S( g5 |6 o9 X8 S" }! ~let sum-money 0
M8 N( L6 m8 H1 K- i# |9 Flet credibility-money 0
: w; O: d& `) W* b1 u5 X. L: swhile [i < people]
) ?# c; r l5 u9 e8 S& I) }[+ E4 i: s: }2 R
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 ?4 j. _. ~/ ~! y7 s$ ^. [
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
, D5 S# m. a5 F7 K: a A' `8 Pset i (i + 1)
9 k( X- O& v# y' r]2 g. t" T4 ], s; ]& a
let k 0: [, a5 c [2 \* Y ?" r9 e4 e
let new1 0
( ]( b! }! a4 a1 zwhile [k < people]1 v5 m Y& E- i* x n* }6 D0 P
[
L% \3 c, |$ G( X( xset 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)
C+ k4 N& I* b; O$ k( nset k (k + 1)
X4 X" y6 r* l4 ~]
5 ^- R& o- N% Z0 y* o0 O; O3 Oset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) , i* z8 L/ S% A9 ?' s2 K* U G$ e" f
set global-reputation-list (replace-item j global-reputation-list new)- z+ k$ u# t5 |; q1 }3 K& p0 h7 `
set j (j + 1)
2 L; n& M W: x0 c2 H) J u]( q4 P) z$ I3 A$ ?' j' F. H
end* N# r* E, L# G u$ O
: T3 P- \8 }4 X! g( m1 y( d# s$ Y* ~
4 y4 g* q. i2 n! d# W" `- j) L) ?3 h, t
: r5 f, }% _% e) y9 t Hto get-color1 I$ {, f. _% D/ D; E/ `
p. y) c& u; Lset color blue
' y+ X& J3 N% p+ j7 Vend) Q& x) ~! K5 u( g# R
: X7 p* i( b4 _to poll-class
& I' L' j4 ~6 o: I" Rend
; `1 U5 J0 D. S2 @3 X, z4 \, C- [. Q8 |
to setup-plot1" F& k" O3 D) P. H9 J* P9 {* k; s
/ o) M4 d! U$ f! i1 |
set-current-plot "Trends-of-Local-reputation"
4 a- |* \; D8 f4 B: G: g" D! J& h K/ t0 _1 J
set-plot-x-range 0 xmax2 c9 P3 C, j* R! p" x1 x# |
5 G J* D( }" ^0 z, V- uset-plot-y-range 0.0 ymax
/ o" M' s ^8 Vend0 f" ]! V1 J% `& ?# I8 D
6 E J) u8 E- Q6 U! H8 n9 ~4 O1 ^to setup-plot2- |( x9 r0 g/ c) ]- x) a. i7 }
& Y9 o/ J j# T% k2 M" Lset-current-plot "Trends-of-global-reputation"
1 Z# D# J% G I: ^
" {: O: u8 p# m4 zset-plot-x-range 0 xmax8 n- M+ M, d: [+ f5 i$ }
l% J/ c0 Q }7 n( ?
set-plot-y-range 0.0 ymax
, F- g9 f7 e$ K7 C5 ?8 ?: H# n% Pend
/ n/ b6 d# t0 L6 _& e% J
% C: D- _4 Y6 ?6 B+ b1 z: d2 jto setup-plot3& m7 A) s( z3 U% w' ], U0 h0 E
l- B* ~8 l$ W7 [! y R/ t
set-current-plot "Trends-of-credibility"5 q8 K% q! q! m
7 |$ Y/ j( h+ G) V4 J5 Q; m
set-plot-x-range 0 xmax' A7 u2 J6 L4 D- Q. ~6 p& ^* ?
; T: C; A) W4 t) Dset-plot-y-range 0.0 ymax
4 e( `* Q- \6 Y6 r; ^0 `8 oend; ~9 Y# \8 Q& T5 |
P) f1 R0 q8 C* P) ]0 a+ Yto do-plots" N: g& X# W( L6 A0 ]9 I" r, m/ Y
set-current-plot "Trends-of-Local-reputation"
, ^8 B& \$ z2 V- G3 h. Fset-current-plot-pen "Honest service"
2 }1 s" F5 ~9 E% h7 h# uend
: p6 D( o/ J5 W5 c: d
) P/ M4 w/ y0 s' S8 N[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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