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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+ f: P4 C8 Z2 U, Y" D
globals[- D& a9 u' O s7 i6 T3 u) B% K
xmax
* ?6 G. h' w2 r$ K& Bymax
8 z6 A. R. ]4 S4 h' v/ vglobal-reputation-list
% B- G& V% L! d! j
% T" _; I# S- d- K# d;;每一个turtle的全局声誉都存在此LIST中; e7 m. Y9 Q/ G1 U8 X+ P
credibility-list/ Y, c+ F' x( U* x/ @. ?$ Y
;;每一个turtle的评价可信度
# u5 v2 {) @) Fhonest-service
/ X# u, P3 N- L7 Y7 L% aunhonest-service7 O% Q0 Y% C' R/ E/ o, z: \/ O
oscillation8 \8 q" D# Z- ~8 z. [
rand-dynamic
8 s# ~2 e+ X; j! b9 N]5 h, l A* m1 V2 B5 k% G
. y% Z- U6 g( P! f8 bturtles-own[
- ~ c$ W1 }1 D8 ytrade-record-all
+ I8 B' ~6 |9 L' x4 X/ \, |;;a list of lists,由trade-record-one组成6 `' j3 Q* p. I6 c8 r; Z
trade-record-one/ }2 C) A7 O: _+ I
;;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 u0 A1 a: W& a6 H" F- L4 ?' Z/ g" y/ x) R
;;[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]]; a7 `1 F- g( K! }0 B2 N
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]) \( c- [9 X! n. m
credibility-receive ;;list,他每个turtle还需要有一个存储其他turtle对其评价质量进行评价的list; y& m- `+ r4 m
neighbor-total
9 K% L+ Q( e! {9 h9 n;;记录该turtle的邻居节点的数目
7 z( N, z) I% Z8 Otrade-time
. {! a4 B9 {. O9 K0 |3 G;;当前发生交易的turtle的交易时间% X7 a1 C8 f$ q7 \8 y& ^6 [
appraise-give, c9 z4 [; w6 p3 ?, h
;;当前发生交易时给出的评价* i; t( b+ o, b; F, D! h. T
appraise-receive" ]1 |9 P' L$ t1 C: D. Y0 o1 E1 X
;;当前发生交易时收到的评价3 `- z5 z2 b% X9 S" O$ O5 q8 s) A
appraise-time+ o' H) y$ w+ V* F& S
;;当前发生交易时的评价时间
' J' I3 t! L, p8 j6 o( D' g! Ulocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
( D4 n9 O2 G3 w( a2 ?6 B8 W; jtrade-times-total
5 d! [2 k' O- C% b& p, a;;与当前turtle的交易总次数
; y5 N0 u% d) P9 @) Atrade-money-total( U% R% T0 l5 Z9 {
;;与当前turtle的交易总金额
( Z/ c1 Y+ y: |( F7 ulocal-reputation
0 R% t: n1 d3 Q) x) @global-reputation
! p3 r, G) Z; z- Ucredibility+ ^- A" P1 Y* {* B
;;评价可信度,每次交易后都需要更新
8 s3 K; e1 Z6 y" L5 J& b, `6 vcredibility-all
' u: o% m, s) @6 }. X9 m;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据% u' t+ M$ T U- g# o) |
& B$ R' } g( h7 D V! w% W;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.53 O: A$ d" P: W. s A
credibility-one
, O! ^7 b& z8 y9 I7 Z9 `;;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项
; X% c6 _7 S/ q; v8 Yglobal-proportion; o* q' d8 k4 Z: M4 Z0 k- t. h C6 G
customer
, A. T/ v0 e. }% s# Zcustomer-no
) P! g M( E& Itrust-ok
" B9 x" h; B \, h0 Q# ptrade-record-one-len;;trade-record-one的长度7 B) \8 ]) i+ J% Z, c2 J) S
]
2 m7 P# `* Z# L+ w6 e' U3 e) \; L; [% f! z/ Z
;;setup procedure
( f; Q: X. V" S! @, P. n( [% o# ?/ _2 F/ V; h6 J6 m6 P
to setup
$ K1 y- g* z8 P. {* K( X& g. j4 k- w: c1 t- e6 A/ y
ca2 S# q4 u A7 u* d
% @5 l5 \) ~9 g; g/ V8 B9 Z. Q3 j
initialize-settings
1 x8 \5 ~( R3 t% T0 }/ }$ X* ]( f+ g7 f% @; i
crt people [setup-turtles]; s3 A1 y3 E3 e( H6 l' @
6 ]" ?5 T. U- K2 `7 z( k/ Y$ U1 breset-timer. X+ A6 p1 d4 Z* C6 A+ @
6 Y' ~8 r# j8 z) E! j$ E. t
poll-class
" M F4 ^4 D6 Y
1 A( b' }; @- O* i$ F, Ssetup-plots( H* s; i* W0 Q: Q c
0 j5 I; i0 w2 [3 R& Gdo-plots
, \ i4 I7 U8 P* @( F. q5 l+ [end
, k6 Y, k& t3 b6 H% A- x
! ?" ~! i% o7 H, H' [! S8 E. Lto initialize-settings
4 V( V: M- o3 Y& c+ {1 b; }7 n1 Z( v& K2 t/ h
set global-reputation-list []
/ V5 x7 I8 w& {3 c6 m1 c. w# w9 K8 m- X' E* S5 `4 H
set credibility-list n-values people [0.5]
* P( e i/ A% e4 D; o% `0 D, s1 x& O' J8 r B
set honest-service 05 P! u [# n$ g. T* T4 ?) g" f" m8 f
& l" D) K6 U8 Y. ~0 m4 b! g8 t
set unhonest-service 0
- r& _6 y; L. c+ x$ o6 c& H6 w/ ?# u; b
set oscillation 0
% }& }1 Z" Z( J4 a
. I W+ K7 \. j5 s3 x& kset rand-dynamic 00 x* M5 |& D6 W. c
end
9 x* R3 g1 L5 G) i# ~" O% l! m" b6 V1 o1 b. t8 ?
to setup-turtles # \! n& S+ i+ o s9 G& B& O
set shape "person"
6 u; \; y/ t3 i/ Nsetxy random-xcor random-ycor
6 h8 I4 j Z+ X( Rset trade-record-one []
( {; X2 v* a/ G" j$ h3 m0 C/ t6 s, J* k1 K$ H1 [3 Y8 G
set trade-record-all n-values people [(list (? + 1) 0 0)]
% T+ l6 m# q& ` n+ c$ x
1 O- L" C7 M' y7 A; gset trade-record-current []
$ l U& {# v! [set credibility-receive []* a1 k6 U& d7 E# O, [. T
set local-reputation 0.5: E+ K6 _9 u ^. H s
set neighbor-total 0. o4 V3 @! D0 D& C4 G
set trade-times-total 0
6 k) u' D8 N: J* yset trade-money-total 0
) _$ s c# a) x8 I7 q, B. o Uset customer nobody
# b# D6 I8 f1 b, ?9 r7 Rset credibility-all n-values people [creat-credibility]# D% b- U7 D. G1 k6 e! N
set credibility n-values people [-1]2 J( D, q. S. o9 v: j$ X
get-color$ r' }" T0 I- y; z0 E R$ X. ~
8 X4 l) m G; J! O6 m% Iend! B0 f: W8 f$ m2 [3 a9 _! {
/ m+ j9 a* ^. }2 T: ?$ w8 I) B7 L; a; Zto-report creat-credibility
$ r% X+ u. i' K8 {8 o: ?% sreport n-values people [0.5]% _. H6 E6 s( @2 H9 v9 t
end
; U6 ]% y$ U( Y% J/ u* ^& l
& `: M: V7 C& R* r0 lto setup-plots/ e( q; x$ G# V; |9 {2 T; Q# t
. ?3 X, G7 x2 Q5 t9 Q0 R$ z. nset xmax 30- \9 A# U2 {9 n+ B* m5 Y
8 F: X& O2 G7 o/ V+ G8 h0 i
set ymax 1.08 M, ~! T+ r" [( T1 Q3 d
2 M: _% E* g' ?$ {! {3 p
clear-all-plots% r( G+ j5 g, o- f
7 [- ~7 f& y8 Fsetup-plot1' w% g6 Z: @! R. C" W
* G2 C$ ~2 L% y4 i+ h. Ksetup-plot2' }1 ]4 X9 U- n9 z V
9 Z3 q X, R' O: U8 R
setup-plot3
; R. @4 Q! s Q* S; G6 I, eend1 m! ?) z; K8 y
9 K$ Q' }, m0 d, a- b4 [;;run time procedures
, X& z- s6 G+ E. \
; _8 {5 l# V5 [( Hto go/ _* o: ?* O8 o" z
) b* p1 f$ T y; p9 [8 c5 C
ask turtles [do-business]' k4 y6 j" o; Y$ S
end
( `5 y6 O; J( K. `: V& u9 f
7 o7 f, P# z7 Wto do-business 6 M# f2 F4 r% W8 I& [+ d; ]# i8 B
* [% d% E$ E4 n3 e
% }5 n, y8 j' O6 d' W0 krt random 360( K% y; ?: _/ X J4 y0 t
6 \2 D% ]) [2 ~0 d) ?$ c5 t, i; k
fd 1* n3 T/ p4 y1 T$ m2 s0 u" |
4 e4 A! U0 z& _$ Z3 d6 {ifelse(other turtles-here != nobody)[# u7 p7 ?, |9 L# [, v$ y
% ]+ D6 @7 i0 A/ L
set customer one-of other turtles-here
4 m6 ]$ X% ?( h# _$ G0 h m( [- U6 \' n( ]2 Y7 u7 b
;; set [customer] of customer myself
; I( N2 v3 M% o {
2 g9 m0 |6 T) e# O2 t* Iset [trade-record-one] of self item (([who] of customer) - 1)
) l( p1 E3 F8 k+ f[trade-record-all]of self, ?, Q3 _% K5 e9 E4 W
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
- i$ C4 a0 ]( ?' w9 p. _4 y. J* O- L, Q2 {
set [trade-record-one] of customer item (([who] of self) - 1)/ ^8 p6 U2 x- |# b
[trade-record-all]of customer$ y: {+ t9 G$ w3 S M: @2 V
5 g! s2 [+ d' P7 U* P! lset [trade-record-one-len] of self length [trade-record-one] of self9 {4 t* ^5 o+ ~/ K; @! c7 i- f
, z0 e% c/ i3 |+ v! T% gset trade-record-current( list (timer) (random money-upper-limit)) |, H s, M! w: U( ]1 F, A
% n9 e6 M# o+ T( T' p3 y( Zask self [do-trust]3 W( G/ G) z7 D0 y
;;先求i对j的信任度
7 E# a, ^( U/ z& ?* K+ r2 S+ x( O, K: ]' |- e& e
if ([trust-ok] of self)5 i3 S0 o* g7 S" q* C0 \* S
;;根据i对j的信任度来决定是否与j进行交易[
1 G0 E, ]5 z0 {ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
% Z. x" Y7 D% S. d" ]7 m. }" s& O+ D1 u, t/ G. w/ @1 T) @
[
* O, {* U3 A0 x: ?: Q+ Q0 P* h, j$ J$ J: k
do-trade9 C5 Q- {9 n* Q& P+ i3 j1 E
+ a8 O9 v5 t* S0 vupdate-credibility-ijl
7 f2 P8 J1 v1 F! `7 b/ Q2 s
* Z8 _* y1 A9 H) fupdate-credibility-list5 j, u& E u8 Q+ Q; Z7 K! H
! @4 K1 ]; |* Y; O( ]) y& Z! X4 V
2 _' L* J7 h% q1 p" G
update-global-reputation-list& g4 o4 f+ }7 i# ]+ Y; T
7 u' R6 T4 I- l3 X3 M4 g# S
poll-class
3 {& ]; i! v' r6 [/ T2 d" J# O6 K+ T4 J7 Y' @- v6 [/ T8 H
get-color
( C+ T# n+ ?- b8 S( f% e4 ^9 j+ ~+ @9 l$ Q) ^
]]4 Y5 V9 {; {9 S" i8 `* Q0 U. E% F
1 S4 q$ R& B7 p# |5 p) P: R
;;如果所得的信任度满足条件,则进行交易
c" l/ R% W& r3 o5 o& g/ j+ P5 M% g9 ~
[0 n! A" Q/ s: [ x% O
9 `( {& q5 {+ w) z- p
rt random 360
0 Q; h) e9 `" F3 m E" A
: f- `( n/ x% @7 q6 O8 H% n; ?fd 1# a; [% ~/ W' w8 `+ w& k
7 b) ]: _# q4 V]0 R4 |) N! Z3 C
" l9 k+ M* z* E7 i& G X# [end
& N& j4 r8 U: M- h; A9 ^ z- `) s$ f) r2 D9 Z
to do-trust ! p% {; [; L+ \9 L* d) L* D
set trust-ok False
! L( }# ]9 C% k# c, B/ A. \1 I) U9 B- N0 F# X, p* F3 K# r( |
6 Z& o; X% V6 n0 @) ]8 `let max-trade-times 0
; M7 V% x+ B! }. n3 O) J6 f2 t- Nforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
6 x% ~ V, }( ^4 wlet max-trade-money 0. e: \4 u. |+ ^8 k: [" O
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]] l6 G5 a4 ^* @7 s8 I& @
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% v5 }# {5 U0 w+ T5 B. e, n/ S ^& j* O+ o8 d' p. V: j
6 F: [) y. x) `( w4 q% T6 `% I1 {( @get-global-proportion' n6 @9 G8 P' F5 N0 @0 F( l
let trust-value. s _* Q1 a$ J4 i
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)# ^( h \7 s1 E$ Q6 S5 }. e x
if(trust-value > trade-trust-value)5 g% c! _) y* O$ c7 D+ ]( J8 S
[set trust-ok true]
' a; I' d' D+ a8 ]0 Lend
- v* z9 _! U0 k) s" @" [ V5 @' a2 T8 T/ }& V9 w
to get-global-proportion( B# ~8 L5 L6 @3 T7 a: j; r9 S, ^
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)! ]$ @' x4 n6 Y, N& ^; R
[set global-proportion 0]2 N. G7 F6 O5 a; f7 |1 z" D
[let i 0# G8 _% a' w6 `- G$ l# f: J
let sum-money 0' w( I7 {* }8 c$ n( s4 v0 y
while[ i < people]
$ V9 _ Z* } ?3 q: }$ q[
9 u' X& G \( Q, M, _if( length (item i
& o) X: ?: B4 x. Q[trade-record-all] of customer) > 3 )
: g; [ a: ~9 P; L[
/ P0 Y/ ^# q6 U( @ U& iset sum-money (sum-money + item 2(item i [trade-record-all] of myself)) @. C6 }/ X$ _' z+ b
]
# S! Q* X: j) Y; U. p W! \% H]4 d- }6 N' J/ y. u) D, C' k
let j 0
4 w/ C5 k9 x' a7 Ilet note 0: q; i( ?" l% m# S* b
while[ j < people]
3 H: [2 M9 L8 D8 h[
2 G# c; T. I% I$ \$ H( t- ]7 Gif( length (item i
0 }: l4 ~- b1 X* |/ Z' F[trade-record-all] of customer) > 3 )9 v/ r4 L# W% ^( ~9 e& t* U
[ L$ \- s) Y0 N$ {
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
c. p' {$ N+ ~' R3 ^# _[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]8 n. |9 \! G) v; G/ B' r8 K' j
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
1 k2 W6 G" m7 z- S" K |' U]7 C. I9 g( q+ W
]9 J" y4 e+ `0 {" }9 s1 I! F% C
set global-proportion note
# ^" S! u% q! }% R9 G! w], p+ T; M+ V# Y! `# l
end- D" b J! M1 I
+ m% F5 w. i3 c! H3 E6 E
to do-trade; J3 }* C+ ?0 B, I8 x$ N
;;这个过程实际上是给双方作出评价的过程
* v7 \9 i$ x. ~/ j3 |9 \1 c5 G$ mset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价) }5 _% x ~0 `5 c x
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
. v* P9 d2 m* l" E: p, x2 Zset trade-record-current lput(timer) trade-record-current
1 x& @1 @& I! K* x7 N: u6 S;;评价时间: i6 p" e6 S3 e1 y7 E
ask myself [# t! k; d! o) y( q6 K, h$ z8 ?
update-local-reputation
! I8 _2 |! l% F+ M2 F$ @set trade-record-current lput([local-reputation] of myself) trade-record-current
1 @5 {( h0 E2 \- w+ N; a]
1 j' v0 s8 E3 w( A/ Y( j, [: fset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
' q4 S+ l. ?4 Q; _, S8 k;;将此次交易的记录加入到trade-record-one中' U' |* I( u2 g3 }; N
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself) [0 B% V5 F( u
let note (item 2 trade-record-current )' ?+ R7 y4 U& z, S" p3 h
set trade-record-current
7 F) L9 W4 G, T: v" l(replace-item 2 trade-record-current (item 3 trade-record-current))+ k5 W3 r) _6 ]7 {9 j5 Y0 z& k6 u& I
set trade-record-current
; u' M* o6 L' V0 G6 s, W(replace-item 3 trade-record-current note)8 I4 `, r; ^# H1 J# ^
: a( ?4 m: o% m% P# C5 z. n2 {4 a1 a% E3 Y* ^" Y
ask customer [# F! {; |6 F& W
update-local-reputation
0 P" Z2 G, q" F/ m, `7 x3 z. Aset trade-record-current
1 C1 G& ~+ e% H! U' a(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
6 u9 g4 e2 a/ A, z]
! c) I" I! G) g1 }" c( N- p$ H, h1 B: S; w% d% h. c% d& N+ E
( u( o( ]3 b2 p! V" R; yset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
# ^7 _( h3 P! d% c
, R! d0 s) t% M# B% y6 eset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
5 e+ l& H$ ~$ W \ z; o1 X; m;;将此次交易的记录加入到customer的trade-record-all中
U% {% i# @% N4 R! Aend
& i2 E. O6 ]( C8 r: t( I$ D% J+ _7 g" E3 j, Z; V
to update-local-reputation, W! f3 Y0 D9 t1 w
set [trade-record-one-len] of myself length [trade-record-one] of myself
2 e" n0 Z9 K" ~0 {5 X! N- G
( ?& j7 o# s/ v' M" Y6 ]: D: J9 L8 M5 `( q* r+ _2 g6 }
;;if [trade-record-one-len] of myself > 3 * ?: J8 {9 ~% J+ O
update-neighbor-total
; A# W; e4 W: e, ?1 M;;更新邻居节点的数目,在此进行( ?: {# d1 O: B5 q$ E
let i 3
/ f4 K3 t4 |7 C1 A8 vlet sum-time 06 F; p4 @1 D. g- w( g
while[i < [trade-record-one-len] of myself]
0 d' u) `+ G- \: s[
( ~$ z* d6 C! j+ b$ Q) x& uset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 a0 D5 c- r* H
set i* C/ |, ~4 @) {) s" [& l
( i + 1): m1 \: C4 ?$ a2 A7 k5 Y& f
]
* O% s: I$ i" B elet j 3 h: s/ Q+ b. D5 J2 S, U: l
let sum-money 0
$ w: r- I5 h: F: f- Cwhile[j < [trade-record-one-len] of myself]2 j; d/ F, r8 a" g
[
+ o; c1 }- u- ~# A A" l8 aset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)+ n2 G% i) r+ ?( z+ @+ E" @
set j
* ^" o7 R$ d ?4 {) j7 z+ E# n( j + 1)
5 s2 k1 f l4 L) D]# `0 b/ N; h( P! X/ [
let k 3
! i1 j: U" l+ Klet power 0
8 q) R/ X4 h7 q/ k6 Qlet local 03 r( m, s6 S: O- B$ y+ j/ P
while [k <[trade-record-one-len] of myself]/ D( e0 E2 C v. J; C. B! x
[2 u' Y# }5 X' I; B8 n% I i
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)
8 y; M& m& B4 O: Lset k (k + 1)
L# [% ?1 E( k+ d]
. h- ?/ O3 v1 h+ L p; H5 lset [local-reputation] of myself (local)/ O# j/ o& n- }; i8 K( A$ J6 K) M
end5 ~* i `8 z6 s) W
& Q) o; r4 u- |- e* E. D) \
to update-neighbor-total
6 J* J" R& n2 r$ [
# c ^, b3 A w6 @if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
* k8 l, _9 ?: l* W) ]' b2 l, w
- Z! T7 {4 h; `. O7 {1 C3 s# p, U @+ m2 d( N! U& ? h
end
6 G4 v4 N% t- r# x5 O' \( V i) K! B
) o3 i! n& V1 l6 m Q: xto update-credibility-ijl
1 _" Q- T( E/ v' @- U" W
+ A- s4 D- n8 u4 ^/ ^1 q;;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。; F" A7 K/ `3 k1 U
let l 0
3 w; _0 D& L1 i" pwhile[ l < people ]
. A0 W# _/ \5 k7 N;;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)
9 T1 e& K9 S5 [. [: B/ oif (trade-record-one-j-l-len > 3): e, @7 N) M) B! d
[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
- O9 I6 b; p: }6 K8 U* Zlet i 3
' o- {4 H7 L$ [" l* Rlet sum-time 0 t. s+ l3 ~4 H/ m* V
while[i < trade-record-one-len]* F. k( E) _8 G( F6 ]
[
/ ^/ M& f8 y4 g& n# F9 W) Aset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 g4 i4 [* |. }7 K
set i
1 ]& h; J8 ]/ M- ]( i + 1)9 a4 `. h4 v4 ~" \
]
4 v: m$ G2 l0 A' y1 X& Hlet credibility-i-j-l 0
( |+ x0 h! G& |' k2 L# C;;i评价(j对jl的评价), z1 X% e. n" W0 h7 W, Q
let j 3
( W) _' o% v3 V% R2 H' Q9 @let k 4; Z& r7 t5 P" q8 w0 c% M" w% Z
while[j < trade-record-one-len]" J" D3 R; ?) S7 r% _
[+ Z* D6 ]/ P2 C: ^4 V! n8 E
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 g/ d( n z, s5 R
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)% K* W: O& _( l1 v
set j0 E, l+ ~0 @8 l8 L
( j + 1)9 x; q* L& T4 m4 H' |
]
5 g5 c w6 _" Y9 N2 l: lset [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 ))
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" A2 ?" `+ s+ L: Dlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
|/ J' J2 y3 R8 W9 W9 G;;及时更新i对l的评价质量的评价
# u6 R6 j" o+ @ oset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
e! R, b/ p" _% iset l (l + 1)
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end8 b) x' @) B6 t8 Y2 _
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to update-credibility-list* ?2 A3 ]& f! @# ^2 ]- q
let i 0: F+ E p$ [% X v# N
while[i < people]" |/ T- Z( m) J5 w2 ?
[
# `0 @/ i" _/ I3 plet j 07 l( _5 q' h6 H- n
let note 0
2 _2 @+ t% w' N0 E4 jlet k 03 T5 T/ w% \. U0 s( a! e: Z
;;计作出过评价的邻居节点的数目
: }3 }) L, q5 ~) pwhile[j < people]
! m$ P3 d* B7 }2 o, Y5 \& ]8 k2 U' B[
4 [4 `6 u' T4 ?5 m3 D# v% j+ D6 Dif (item j( [credibility] of turtle (i + 1)) != -1)
2 l! Y$ j4 `6 G9 n6 U `: O;;判断是否给本turtle的评价质量做出过评价的节点/ j2 T( Z/ D8 M
[set note (note + item j ([credibility]of turtle (i + 1)))
- ~& X k% {: r g* x: R# @5 W i;;*(exp (-(people - 2)))/(people - 2))]4 ^2 Y5 B7 j/ N S7 J
set k (k + 1)' Z4 @2 i; t) C
]
% b! n W5 q+ [/ {$ aset j (j + 1)
* |& C& o2 G! F/ e" v O]
& P, l" u# R% F, s5 R$ E; R- i3 c$ G( rset note (note *(exp (- (1 / k)))/ k); b# q2 r3 P7 V; t# c
set credibility-list (replace-item i credibility-list note); a& F2 I$ p, ] H* N1 B# o
set i (i + 1)
! g9 q% P* z1 a5 d]7 c Y& _3 h2 v: s5 ~
end
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9 U) r7 W1 j8 l6 S! i3 `to update-global-reputation-list; d3 _$ O) d: l7 m+ h& R' |7 o
let j 0
8 v+ p7 c' N H' t! Bwhile[j < people]
3 h% c: K' j& e& M% _[
! U7 @8 D+ U' ulet new 0/ ]- ^2 s& ?! c0 B2 Y; J
;;暂存新的一个全局声誉
. H/ a# C; G4 M7 Q6 e. A! ], Ulet i 0
9 a ?& e* ?- W8 o! r# r: glet sum-money 0: L/ a I' Y( r x
let credibility-money 0
+ g, f) m6 |! q2 o* Bwhile [i < people]
; t2 a3 H* L2 i5 R8 r[
6 d: H# G4 o E: A0 l6 g4 cset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
0 p2 c5 ? V' ^ W. oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
% T) g+ @/ z1 P% v& \& Oset i (i + 1)
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let k 0
$ k8 K# \8 T' B( n" tlet new1 0
: t: ?. U8 o5 b; h; J& zwhile [k < people]
% V5 P& f _. r' Y* o[
9 |" w& m! r+ y3 Yset 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): o/ h5 z0 A3 _( I
set k (k + 1), G0 U% U U- _ [0 ?
]. h* f! k7 Y: W, D
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 4 ^4 e% t5 ?/ q3 J) G
set global-reputation-list (replace-item j global-reputation-list new)
8 L& m9 O. o, l1 K; T7 G' ~set j (j + 1)
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end. g# R; a5 ]" R" e2 }+ A% X
4 @- j* C, m. U( M' f( M4 b3 w: n A2 o4 W6 A0 @; j+ b
2 ?/ E: Z6 a" V# D- s! ?5 R3 ~
to get-color
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set color blue
& Q* o+ x# E9 \' K; R9 E) w: ~end& q0 e ?( V) G0 @, d2 v& q- R
6 r, k. L6 B. U1 i% }to poll-class
/ r2 q. M2 G+ \. Yend
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to setup-plot1
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set-current-plot "Trends-of-Local-reputation"
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: x5 i! v9 @; s/ Pset-plot-x-range 0 xmax
% c5 b3 i( L8 q& O7 h. r$ ^( E- Q. T! _
set-plot-y-range 0.0 ymax7 L) M# ?# j' Y$ s6 l7 O
end
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to setup-plot2
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& L2 I+ ]+ } Z! h/ t) ]. h) W4 R6 Lset-current-plot "Trends-of-global-reputation"3 E) |1 a( ~# h0 o
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set-plot-x-range 0 xmax
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! b: i0 b: I9 W I7 y( K8 M" Cset-plot-y-range 0.0 ymax$ ^* {% S/ ~% V! h7 W0 Y6 y
end* l/ T0 B) a$ y& @8 W# o
( n9 z+ M4 |' P6 b- K) {7 f/ [8 ?to setup-plot3
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5 ^$ C5 l. ^' P) y/ ?set-current-plot "Trends-of-credibility"
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; T5 Z |& L. C+ I, V! K) mset-plot-x-range 0 xmax
4 T6 T' m- T, ?! z2 I$ t- r. L/ Z! t' V7 K h- @
set-plot-y-range 0.0 ymax4 s$ v4 o/ [) Q u
end
& w+ b- h, t! x; v' p/ t
4 I) Y5 [2 A9 mto do-plots
& n1 r2 B' {. d; i* O3 K% ]. Sset-current-plot "Trends-of-Local-reputation"2 J7 F5 p, p, T4 @7 T2 r/ m/ [; X
set-current-plot-pen "Honest service"6 q! k8 A( {6 |7 d: p$ R+ q' f
end+ i g% \9 W) L
/ f: S _! H4 k' x0 v7 V[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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