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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
$ L0 ]3 y; @! i2 a$ s9 c2 Pglobals[! {: O3 N$ P8 Y. \4 ^1 o) r3 Q
xmax
% f# c2 h- o) i: X- }ymax4 D% w( o) \* I" @9 D6 @( Z( P
global-reputation-list
4 A/ V4 C+ g2 N) Q
' Y2 E9 B0 H, s3 a# T;;每一个turtle的全局声誉都存在此LIST中
& s! Z* @1 Y% n: T* ~% Ocredibility-list
. i2 Y2 {( l& j% X% j7 v" [3 y: \;;每一个turtle的评价可信度. M: u/ ~; F8 w! j) x4 v, ]
honest-service
: N K. G/ q3 iunhonest-service5 O4 \6 {* h0 Y( X9 [0 R8 L, D7 M
oscillation- G# Y' A# u1 Q& [# w
rand-dynamic
3 s s. @( p" E, H- D8 ]; V! l u/ |, K]
0 t) |* N' x- Y6 \1 C: U- Y* ~( A+ O6 I* b3 f
turtles-own[
0 p( @1 z( {6 u& I7 s- wtrade-record-all
3 u2 _) T4 @, F;;a list of lists,由trade-record-one组成: x# @$ S9 Q8 K) ^/ B/ B& R# ^
trade-record-one6 j) H% T- e- h$ |" L( x) 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# f0 Z+ k' }+ K; `( M5 [$ m
, M& {4 H$ H6 E# {6 D' M;;[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]]
) u9 Q& f6 O! ^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 s _0 A& W7 ?7 p+ H2 |
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 b5 b: m8 o' {
neighbor-total
3 V, C3 F2 X0 g4 c3 E; m" X) m;;记录该turtle的邻居节点的数目
) h+ l7 G+ n. \0 k) m5 O1 c4 G! Q- jtrade-time
* m3 A6 t5 f( r;;当前发生交易的turtle的交易时间
# _) @" g9 I/ O& \: ]appraise-give! G% \& L0 D% J, n) u q
;;当前发生交易时给出的评价
; p+ P0 m- Q5 m+ n1 Wappraise-receive$ s; X+ }. `9 Q: G4 H9 X
;;当前发生交易时收到的评价
# b7 Y6 N: Q0 Uappraise-time( Z5 o' n( e* k" v
;;当前发生交易时的评价时间* h$ \0 ~) l* k. i: \5 i9 @9 \
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
) C/ ]# b0 t1 S7 r9 P# Ftrade-times-total( Q! {% [. p* c! f
;;与当前turtle的交易总次数
9 d: ~; d" E) [) a) j$ j' Vtrade-money-total: P% R" m2 M9 T( Q4 c
;;与当前turtle的交易总金额
# G8 e; w x* O0 H( Ilocal-reputation
0 j+ p0 k J2 p# e9 Dglobal-reputation: ^* G0 r9 s& ]9 \0 H+ ^' }1 L
credibility
% S3 Z% G7 y, i6 };;评价可信度,每次交易后都需要更新
* e+ w3 Y4 J% d3 {+ e M6 G P6 Ccredibility-all
! ~& M5 \" w5 s0 f3 H;;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$ Q U3 T7 P& L8 G9 b
6 X |) V# r! N! C# p- N
;;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0.57 @9 v, c$ i7 F
credibility-one' \5 _" f7 \) K, H# u
;;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+ c n( x$ r
global-proportion' r. M; G: e( a& ]/ B
customer
7 i5 d7 h6 D+ jcustomer-no
+ @1 _, f7 J; Y! Ptrust-ok
4 I* E) y, K/ e9 n0 U; Ltrade-record-one-len;;trade-record-one的长度
- G1 E$ ^8 |# Z' @: q, {]
2 B& z5 |5 q# N% D: y6 J/ v6 A0 h+ f6 R, l% B# O/ {) u! Y9 u
;;setup procedure& ]1 J8 N5 w! L
, `3 G' z! t3 n- H! l; Bto setup1 ^2 g4 K9 {8 L
: ^ W, i8 ^+ yca; E' i* r1 ^. D8 t
8 k9 C& o) [% U$ Finitialize-settings
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crt people [setup-turtles]
6 u8 I1 Y) Y$ e
1 ^, E( t- C$ g' Z4 s% G! Y0 [" qreset-timer# ]) a; j/ }* G% F, D6 O$ e8 I# n
( i) t# V% y) }9 _* Apoll-class0 n8 C+ _& D4 e0 C% I8 r
4 q1 m0 g6 P4 N Q/ e' ~setup-plots
3 `$ a, a: y* g- h. [! z$ U) B! g" {; h( F1 c- b3 y
do-plots
! `4 c( b5 E& g0 E) n0 m, u* k) yend6 K" i6 ~! u: R; t# n3 j
5 e0 d" S& l9 A7 q" c; z
to initialize-settings
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set global-reputation-list []
9 A! D5 {0 ^& [7 r
" I) ^# P4 ?& hset credibility-list n-values people [0.5]! }- l0 v' O; f( a; G' B
1 l9 [& a* q$ m/ P) ~
set honest-service 0
4 e9 p' a; s O) d) `4 C0 R8 g3 h% ^" J. ?' s0 `
set unhonest-service 0) U, g# K* n0 @0 y8 V
, w. [: t. |' U5 k( i
set oscillation 0
r+ y! O; ~8 ? {# [, m' X3 A* y y2 l& g E4 d" F$ i% _
set rand-dynamic 0
/ n: \# ]+ S* O. Q1 _0 L5 @, e* }end
. I/ E1 a: P; w4 Q$ c/ I- U# l/ W+ ^: ?
to setup-turtles ) V' Q* b2 l9 h6 {
set shape "person". a* p* P2 t$ x ^3 @
setxy random-xcor random-ycor; n2 \4 S# F; U: Z- |
set trade-record-one []
8 U* i4 Y8 K8 Y3 {% H1 L9 \& \& N- D5 ]/ ^% M3 X* J
set trade-record-all n-values people [(list (? + 1) 0 0)] 9 T% a0 W1 T/ O& |# y
; Y3 [3 ?$ c, r+ n$ {9 Q
set trade-record-current []
% t" ?% ^' @! h2 G7 Aset credibility-receive []. _+ ~1 e2 m' F4 m3 ^
set local-reputation 0.5 W8 b2 W" P7 G% U7 t
set neighbor-total 0" i& O" K5 D" p: h, G& V
set trade-times-total 0
" _# ]: U" g6 Y4 c- E4 t+ \8 @* Wset trade-money-total 0
/ I% e+ H% z" h' T8 D' J! Tset customer nobody
$ V, c4 X J3 t# m( V" zset credibility-all n-values people [creat-credibility]
# x; [2 S' K# w/ x! {set credibility n-values people [-1]) k9 t6 e a7 P9 P$ I; O3 n
get-color
3 G# Q8 w+ X7 [$ Y
! B: J+ V" E1 }0 \. C) `end; \5 I/ h& g& h4 O0 D
9 s c3 _+ C Z+ Z o. Wto-report creat-credibility
1 f! K2 r! V$ T5 }' creport n-values people [0.5]+ M) s" W4 l( u+ V, ?( `
end
$ W. Q# y( g/ v+ K
, }7 ?+ Y% s! D- V0 [to setup-plots
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3 h6 u) D3 d" ~0 @set xmax 300 s* y7 O ^+ o
9 _, g. p( _. b O9 R0 ?
set ymax 1.00 t; |/ Q% J: A
+ H3 X, I4 n; _7 I! `' Rclear-all-plots3 f( X, i8 |7 c6 i6 _7 m' f
* R' `# a6 R U# [; t# a
setup-plot1, N' |9 p! A$ X9 d0 g3 l
3 s7 S1 b4 J0 X6 |
setup-plot2& H2 @( J$ d5 V( J
* h2 t" N9 i- N5 b7 x. zsetup-plot3
% x2 c" N* e2 Oend
4 e# D$ }* c3 O
& N- ?- T/ C7 C7 _" U;;run time procedures
6 J7 z. E* ]) r- D; ]. {$ ^; K: U, H
to go
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! T S+ _( K1 a2 f! S5 G7 iask turtles [do-business]
- y6 d' o2 G" O0 c4 W% _( p' Wend& i6 S1 z/ ]# H4 g* t# x
+ t; u# Y9 h+ A
to do-business % z3 F* W; j5 {2 g+ l1 g
1 z6 {1 k1 d- M3 M. p
) C7 f2 X" }( I
rt random 3606 R/ J( h+ h# r# p+ p1 Q
$ Q0 K5 L, B @5 T" C' m8 a5 P/ Ofd 14 a3 Q J6 S' s# C) N
4 x6 B# @8 R* ?7 t. jifelse(other turtles-here != nobody)[
* }) e; m3 v8 i' A3 c* z, H, V2 n( i; C
set customer one-of other turtles-here
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;; set [customer] of customer myself
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( ?9 W% k! I' R$ r6 s& ~6 u! eset [trade-record-one] of self item (([who] of customer) - 1)# a& ^1 H4 b% s6 a% |: F
[trade-record-all]of self
1 i8 @) B( H, |; v. Q9 j; G5 ~;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
8 Z, N5 K; W0 I' L- M4 \+ M* m5 s c4 N( O+ x: l2 x
set [trade-record-one] of customer item (([who] of self) - 1)! x' M5 p& e g
[trade-record-all]of customer5 e$ o# Z; n7 [
+ ~+ O0 e# k; Y$ f! m
set [trade-record-one-len] of self length [trade-record-one] of self
2 f4 S4 e! E7 ?6 q- }# n3 N' I8 U8 L1 o/ C5 d) R9 f
set trade-record-current( list (timer) (random money-upper-limit))
/ h7 N- x8 J6 {# l9 s/ C$ [" B/ g4 I0 P* E! e4 c
ask self [do-trust]
/ _& _5 K0 f7 L;;先求i对j的信任度3 @8 I/ y- m" b# C0 n7 v+ p+ K+ L
5 E8 Y X5 n; e1 t2 j; v1 ?' e
if ([trust-ok] of self)% s% B8 u5 Z3 @) l
;;根据i对j的信任度来决定是否与j进行交易[; v; C+ D, T% n2 l9 j, I% ?
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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- x! x( F7 ~: R5 S1 \ r
do-trade
( w/ d w% w# i0 v5 L( `' x0 Y; C1 E
update-credibility-ijl
U/ E2 k4 x/ i" J: Y
\8 R& b( j. Uupdate-credibility-list
1 s5 @' f5 g" K+ ^% H- o% @" |6 n8 d" ?1 v
/ A5 f" C; Q: G c0 e/ d
update-global-reputation-list
; t( H* J4 y0 t8 G4 W, Q. u) ?* g) h1 T0 \& Q* b8 T
poll-class
^" J. Q& \* C' d! M' c' h
: e! |9 c7 ?# x" ?get-color
4 L$ C1 f3 k1 X" s* U# n8 r( L+ U8 ?5 L. Z+ F( w, v
]]
% W" u G) D8 v Z F U s h
+ e! b$ m; M4 R, E) ?;;如果所得的信任度满足条件,则进行交易
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[& A. @' [* V0 }2 f0 }6 z, \; r
) A* s' [$ A& T$ j
rt random 360
& f* k! k* e3 s8 f& T; Q+ t& X7 w" s' V
fd 19 T, X0 X" k1 I ?% x9 C
7 N) c- v% \2 Q8 Y
]
5 V5 \; J5 b/ h0 Z, _; q* }+ `% f) h2 A( x! z5 B9 `; Y; z
end! }) t( j6 l& {% r( G% Y# b
. r: V9 `- `! N' B) Cto do-trust
) k) L! Y+ J# Z# Fset trust-ok False
! [* D7 F' @- H- _* [
1 T+ D/ M4 A. _5 K: M" F7 d. z" S% I" D! a) }3 H1 Z5 f6 @
let max-trade-times 0' j/ J# @% a9 E( ~) C5 _. Q
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
7 L# ]6 j! t, I4 glet max-trade-money 00 @2 R) i* {) x# f7 a1 W) j( d" d
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
f1 q( Z4 c' p b/ ulet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
) C( G3 U' |7 J2 l
$ T: _9 ~ a! l4 i8 b/ G% c% j% ` t( L' j, \' a3 V
get-global-proportion
! ?# A; c2 {2 Z8 J3 x% g' ~let trust-value% z+ Y- ]( G! v1 n
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)9 n! H; `" U% l# P* ]- e0 J7 B
if(trust-value > trade-trust-value)
4 F1 n: i3 L( n1 ?8 G[set trust-ok true]
8 m' J/ [. F! r3 g2 ^1 {; y* @end' a# R& o" u& {5 W& S2 p9 ?
# w7 h& W# G8 Z/ M% jto get-global-proportion" a! e. u x M7 o T+ U: `) r5 ?
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)$ D/ U6 g+ Y6 D4 {% G+ E {
[set global-proportion 0]% |; [% D4 D% |" |( Z
[let i 0
0 j. }2 S0 Q# wlet sum-money 02 Z+ B- @, L% |% f5 u! G+ u
while[ i < people]
& n9 _4 i# Q* @( t[
% x2 O% H2 j- g, X+ n* ^if( length (item i6 s$ p3 E: D0 u/ f/ }" b
[trade-record-all] of customer) > 3 )! n8 ~$ @' I8 e' V9 U& @
[
2 f) _! i$ ^" G, q3 }3 i7 Iset sum-money (sum-money + item 2(item i [trade-record-all] of myself))& m4 Z6 p K0 Y, ]' f9 u- e
]3 K! e. ]/ A7 X# A' l C
]
, Y) x% Q P) n( d, o* Klet j 03 x. L+ Z8 h% I* O
let note 0
) [0 I3 X: f2 ~- m/ m6 G& }& \while[ j < people]
( ]" W) @8 [, s5 R- `% ~[
3 @. m7 ~/ i) P5 k; Jif( length (item i
# z6 {* X6 z$ a7 X7 \/ f[trade-record-all] of customer) > 3 )$ F; N; y: J4 `4 f. _$ o! b. H
[
$ u% v8 ?. x# Q: i. C, vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
2 g) z1 n) @. J[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]9 k' [2 t6 O+ ]- k2 F" r$ h
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
% D: l8 f% l2 r A4 Y]
5 L" k, v) ?8 e; Z& R! ]; X4 J: }]
% f( Y* J, e# o5 e% Mset global-proportion note
5 g2 p! a- ~, K u7 J0 u]
" T- v( k% e* uend0 K. L o* _' T. O# Y6 f
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to do-trade/ x& }7 a, ] Q+ ?; p
;;这个过程实际上是给双方作出评价的过程& F. ]. y9 F3 c1 j6 r& ]: G7 {
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价1 U/ L$ _* L8 O! j+ Z
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价% z% i- v) h; q' M* t6 m/ I
set trade-record-current lput(timer) trade-record-current
+ J- F7 M+ f0 k0 l$ q, M" y;;评价时间
) n7 M; V- j I0 lask myself [
7 s1 [: t: d. H8 s& a- {/ a) Wupdate-local-reputation
$ Z6 ~8 |% d1 R2 h. y, ?3 sset trade-record-current lput([local-reputation] of myself) trade-record-current( M' X5 C1 Y; u! U! X+ P! p0 C: G
]
# o, y9 H4 _9 o; aset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
7 Y! n3 B( u* o- g! A p/ U2 ?1 [;;将此次交易的记录加入到trade-record-one中9 G9 y5 i" f8 T8 o* R' B% }! s* [
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 U- {" G0 d, t' G% k4 H& @/ tlet note (item 2 trade-record-current )) \0 d* F& e$ w
set trade-record-current
9 A/ d6 ~3 H8 L(replace-item 2 trade-record-current (item 3 trade-record-current))7 R; {+ }: z, h, z( E3 B
set trade-record-current
; h+ n8 F9 G! |* f, m( J) S1 I(replace-item 3 trade-record-current note)
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V/ M2 n5 Z& Q( P+ ~" o l% t8 q" t. k
ask customer [
) K. F. w* E9 ?' `2 Vupdate-local-reputation
$ Y4 w- e1 J5 ^) D) pset trade-record-current
5 ]6 L& T& O% N5 j4 i. L(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 1 t/ f. g- K8 t, k
]( M3 B3 p$ _ g! M& z" n3 a
1 u. H3 y8 \/ G
! E6 T! u. S" `" s: P
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer. P% X& ~1 v7 t& F
. o: m, E O3 g& {set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)), V5 B& N; h/ V' n- x- Q3 }
;;将此次交易的记录加入到customer的trade-record-all中
8 Y9 Z' [- s: y) j" uend
% l# s G. i9 C$ V: n" k. Z" `3 p% w7 \, Q, r
to update-local-reputation, t& N; W4 ~# k
set [trade-record-one-len] of myself length [trade-record-one] of myself
+ g8 ?3 M1 A% F) W8 a7 t, @6 C1 W7 V3 k" ^, |/ F
8 g% j D5 _* B;;if [trade-record-one-len] of myself > 3
, c5 Y8 P( N: dupdate-neighbor-total1 L; Z: v* ^7 c0 u
;;更新邻居节点的数目,在此进行) H* {9 X: N' E* ~. B# I; M
let i 3 u0 t) L) x! B$ m! T, I7 {
let sum-time 0
0 j, V) h: L, R0 H7 pwhile[i < [trade-record-one-len] of myself]4 V& y" D b1 Q' F. Z5 ~& G1 _5 l
[
t6 T, N) o' C6 e* H, ^set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
. E6 z& D' e! ~set i" }5 D' f: `$ x2 M
( i + 1)
5 p5 w7 n3 o( C- ^. `2 F]
$ v! e* n+ G3 u& ulet j 3: t+ l0 g) f; X y
let sum-money 0
5 e- q% {# [+ S2 C6 E" s* ]& }while[j < [trade-record-one-len] of myself]. ~) _. Z( N4 S& Y0 d1 d) t
[
, N: `' h/ n- Q- ?. j& @; o2 Lset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
" @+ u, m+ E, b$ H- x. kset j' ]0 n7 j1 ~6 Q L) r- J4 ]/ J
( j + 1)
! t" C- ^6 Q+ J7 {- K]6 |! b! Y9 j* W0 b0 s
let k 3
! J: z) w$ U7 J% _ G4 Clet power 0
- Q7 Y9 F( G& f$ @; ]# Llet local 0, _* i$ L- Z5 p2 i& s! x
while [k <[trade-record-one-len] of myself]
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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)
" l3 T; i: y* e6 v7 @* c2 Pset k (k + 1)- `+ B! ]/ W2 B/ ?9 E ]: P- j
]
* r+ i+ m+ l. L, ^# R2 P/ b- oset [local-reputation] of myself (local)
8 _# B1 ]8 |, t% ]" F$ H- A, yend6 m4 Z/ j' r# [
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to update-neighbor-total
5 B8 W9 m) b) F$ Z1 ~ U# \7 D0 u
: F* w$ M$ j0 U, `9 b1 Y/ A4 zif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]& n3 U8 l+ v3 d9 r8 D
" _9 S1 q4 R! |7 X& E7 Y/ C2 b4 Q6 z
4 E6 N) \. s% d% T% t8 ]end
1 i6 s; Q' q {6 c+ u2 L( e( a! ]" Z% h; D- y7 m& `
to update-credibility-ijl - t- r/ P: B& Y. F8 T5 m; j: t8 @
/ g }5 q# \( ^/ G! }+ h) @
;;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。
- Z) G6 k& j3 ?# \% F. `let l 0
' W" J6 v' a! d* c" ^1 Pwhile[ l < people ]+ I0 W$ U5 N. e P5 E- n x
;;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; f# f* ?; ~- t: x- f
[
- o, M( I1 a4 F4 `/ ulet trade-record-one-j-l-len length item l ([trade-record-all] of customer)' ?0 V) \9 j' A) {. C' g
if (trade-record-one-j-l-len > 3)
$ g9 _* A* O; C, i[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
( `3 S& F2 _, j( Flet i 30 }, c2 {; i+ c1 D3 U' J
let sum-time 01 k- I# _# r7 i; @1 q% ~( e3 T
while[i < trade-record-one-len]
2 E( |( {* o; N3 I( W[
]+ X; R6 @: U/ }set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
: `" P0 K1 S# T% |set i
* E3 x$ H! Q) t; G1 S( i + 1)2 L s2 g1 m2 H+ L6 w
]' s2 ]/ [" d0 _. j. n
let credibility-i-j-l 0
$ c7 n5 ?. |. T+ k/ V' m7 x;;i评价(j对jl的评价)
9 @- _ v% M+ D+ e& V) E( vlet j 3* `" B* w8 Z H1 j6 K- Y1 I1 c4 C
let k 4
2 H1 ]. ~6 A: I+ }0 Vwhile[j < trade-record-one-len]
8 X1 _+ n/ {- Y/ S# ][
6 p3 f& d6 e, F* J5 ?- ~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
4 O; w9 x% l/ a3 U$ T4 pset 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 Z# s. h; a1 t6 @3 W A6 Yset j9 Q8 K/ [& I% P
( j + 1)
0 S+ y& P W& }7 L% H1 F* M]
) l' w8 U4 l7 x8 xset [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 ))' Q3 ~ P: z7 e8 P4 j* O$ ]
' [9 {1 }( E* x" k) ^+ g/ X6 r
6 g: V7 J+ c3 q' Z
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))! ]0 }3 ?2 e* E" H( f8 \. f- I
;;及时更新i对l的评价质量的评价5 D& N7 u8 B, T- c" d
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]6 z) I9 C( X. U1 |" G: U
set l (l + 1)
0 x0 \: U S9 I* l! P- ~]* h: @, W$ z. W3 h& M! I
end
L1 Y" G. }0 y( P4 ^( W, b) N* }! k$ B. Z1 [0 f. C, n0 @3 e
to update-credibility-list
/ B% B) W x6 U+ P1 y# Zlet i 0
9 I# L# }% u. q8 xwhile[i < people]8 A' M; U- s& k7 s5 B! w
[
. i% J0 }& [5 Q4 U% _4 @let j 0
* B3 H6 m6 _: { x7 c0 Qlet note 0' r; `& [, [; ?- D8 Y
let k 0
. A; R! B7 Q" l" q. n+ }) T;;计作出过评价的邻居节点的数目# @% d$ e( O- w1 \
while[j < people]" q+ D7 V9 f+ c; T, ^* z
[) _4 T7 {1 b5 n( X# D% l- Z
if (item j( [credibility] of turtle (i + 1)) != -1)
3 [# V/ B" G9 @4 f4 B4 t8 n5 l( x;;判断是否给本turtle的评价质量做出过评价的节点; R2 g5 r) o2 p% R
[set note (note + item j ([credibility]of turtle (i + 1)))* k% U4 T& [8 S+ J7 K+ i* L: k# Q
;;*(exp (-(people - 2)))/(people - 2))]
2 i+ \. p7 u$ X Yset k (k + 1)
7 l2 A- p, W+ Y% L' J]
$ {- ?. u4 Z3 ]1 O8 [ W# tset j (j + 1)
: L1 b/ C/ G' u; E6 `7 M1 V8 O]* v. w8 j$ Y/ I& {" a
set note (note *(exp (- (1 / k)))/ k)# e" Q5 }, p1 |3 G
set credibility-list (replace-item i credibility-list note)9 e; S% p% |* R" E
set i (i + 1)
9 Z, d' T* ]5 s) g" Y& O# U: w]
, J& z7 C5 J+ I) ?% g% C) E$ T1 T" Aend5 D; b1 T1 C& c. C/ h
$ M4 x1 L) ~& yto update-global-reputation-list
) v* ?: y. B! \3 h, w3 llet j 06 p; g9 ]4 p, Z7 s# t X( x
while[j < people]
& A1 n4 h0 d9 \9 s. }7 D$ n; ?+ C[
. x8 y( {7 ?& o) U: @, N' S4 n. Llet new 08 U" P7 H# w0 X( D& t' d5 P
;;暂存新的一个全局声誉7 C* l. v' V; @( |
let i 0' L- z T' \5 N/ Q3 x9 X3 B1 ]
let sum-money 01 p. a2 p3 e) q
let credibility-money 0
0 O5 ]) H; p5 L5 ]while [i < people]2 F O2 ]0 r# H0 w; o
[2 D5 K# i8 S8 {
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
$ \$ @) i" k5 Nset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 o' l2 X" U# m# zset i (i + 1)
' s( G* |0 H0 E6 H4 Q: `]
( J- n( T' G! c; b: Elet k 0
7 v! |/ s e$ ?3 O$ k0 Qlet new1 0
# I* K/ U- i2 [while [k < people]
" v, F8 n2 \4 F. _[
, L% ^* F4 r& O- [9 b7 B0 rset 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): l. E( |9 n* O# I! o5 u7 w
set k (k + 1)
5 f% z# b* o" b# G" u/ Q. t]
3 a |: k" n1 j: {set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % d; e# M- F' Y$ w. x
set global-reputation-list (replace-item j global-reputation-list new)
" D w2 s. q6 w; q4 D' e- M! u# fset j (j + 1)* {: Y& S6 }$ D/ Y V9 L# F
]
]4 @; c5 _8 `end
7 y, I ~- ]& g) B- p4 \
7 x* v: |" u! r) z: w8 e, a; w0 z% ]7 x
( i7 c p. {% z# sto get-color9 H7 V V( i2 {2 T# d
, l1 `7 A& H5 e! ?; e3 h
set color blue2 E a0 N+ b, I( Z& J
end
+ {" ?4 f& i1 Q- b, @, v$ }# U& D/ W9 H |' y, L/ z
to poll-class* c9 T! w- E+ Z2 \& b
end. V$ s2 z/ {' m
* J$ Q# P+ k. p5 F/ H" M( u
to setup-plot1" I# C- e6 v4 S4 y
# t: T. }' F, Y! F/ E7 K6 H# Y
set-current-plot "Trends-of-Local-reputation"2 y! G% f$ Y3 B( z2 u
; G" d/ F; x- R. t- a2 {8 Uset-plot-x-range 0 xmax2 M7 ?+ t+ `8 R+ r7 c) W3 k
* N* p- u! P% V$ z2 Q4 dset-plot-y-range 0.0 ymax3 S+ p+ X8 ?+ W! i
end5 P& P; u# c3 I6 i1 C
/ o/ F6 J, E% }9 M9 j4 Wto setup-plot2; E+ r2 G+ o+ m
* R* g4 [; V# o. o: P! _
set-current-plot "Trends-of-global-reputation"
) P+ V( t7 p1 S; ~& P; u
4 o3 Y* e( ~) r1 q0 u, {7 yset-plot-x-range 0 xmax
4 z( e6 M& q+ m: ~5 p4 A8 p3 ]8 _$ |! h' g8 Y) H( R) Z) R
set-plot-y-range 0.0 ymax* l: ?: h& M, b
end
4 }: i1 H6 _' o
1 }- n) d! ~( r0 |$ uto setup-plot3. C6 S+ l0 q+ V5 X, l) A
6 M- l! n7 L, q d, \* G. Pset-current-plot "Trends-of-credibility"( {& h5 D3 k J0 s% p" {" c# m
+ u; m' Z& b3 D! n; u- Wset-plot-x-range 0 xmax9 W% X8 E' d* x, }/ j- a
2 D9 A4 ?; J3 Z+ } _set-plot-y-range 0.0 ymax
1 G- e" D0 i$ L2 n$ gend7 r \5 M& @" l
# I0 D o/ w, e- Z Y5 W! q! V
to do-plots) G E/ J& n2 T0 W6 K
set-current-plot "Trends-of-Local-reputation"2 v" u; p0 @9 e0 O4 g6 Z9 y+ ^
set-current-plot-pen "Honest service"" ?) B$ V" L' r. l# N
end
, i# `) I8 ?' ]9 M
& {1 \% r3 n( o( T* x6 {[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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