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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1 E6 O* F% I. A; g% ~; [# m
globals[
: v9 X$ _; g8 M6 @xmax
" k/ J: ]+ G+ _* Yymax
1 {3 ]7 [' B& i+ E; {$ `global-reputation-list
% _ D! g1 a/ R+ u+ J* f
4 ~' { D) s0 I;;每一个turtle的全局声誉都存在此LIST中/ x# G0 d" ]7 ]' ^0 c
credibility-list
' q% S a7 j' p6 V+ T* u;;每一个turtle的评价可信度
, i3 y4 E' G6 n# dhonest-service
: j: u- E8 c9 F6 R u/ ~9 cunhonest-service# }- {4 v; S' ^8 V
oscillation
5 u6 \# b' f! q R! L% z5 Crand-dynamic% T/ Z( t7 ]$ k! J6 x
]
m3 f) B P' c& x) ?
; a* m' h) j4 z) pturtles-own[0 L! O. H- s; \' X, k. ~) @& L
trade-record-all; C/ R! H0 ?+ ^5 W6 z$ i! l( d
;;a list of lists,由trade-record-one组成" }3 c- ~6 z y" T- J
trade-record-one
7 N3 C' h5 C5 Y2 u3 c! T;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录. i( m# \% ~5 S n, k7 F
. j: k& _/ @) z. t- 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]]3 c% l( ?) U: X9 U) p! ~8 h% X$ @/ 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]! P, e/ ^* S6 }5 `$ T! d, ^1 e8 I
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
, I( a* O* n2 I) I8 V5 W% Aneighbor-total
7 v" G8 T4 j1 o; `# |6 p+ W9 W$ T;;记录该turtle的邻居节点的数目
5 I2 F4 K. M% r) `: [. _- xtrade-time! i" q; J# \9 X3 R
;;当前发生交易的turtle的交易时间
\; o+ h: p- W) Uappraise-give) G) C- I: b! I& e3 `/ o m; R$ [# _
;;当前发生交易时给出的评价- n, W! L p9 N/ v y$ r
appraise-receive: V% _: L& H% i/ T, f9 x( b9 R
;;当前发生交易时收到的评价+ @+ W3 k) k! @4 m% J7 m5 U) N' P
appraise-time
' u* Z5 ?( U1 r6 |( @$ I* X) G;;当前发生交易时的评价时间# J+ a. ^6 s' ^! z; y0 y3 _/ g
local-reputation-now;;此次交易后相对于对方turtle的局部声誉; k* ]2 x; z+ K+ m& Y! u
trade-times-total# v W; Z* c. y+ a+ A8 x$ Q8 x
;;与当前turtle的交易总次数2 j b* h" f! P# R
trade-money-total0 ~2 }: m( A, g
;;与当前turtle的交易总金额
& C- W8 b. ]2 j# m. w9 n3 _# vlocal-reputation) ^( l5 f8 Y2 b- P: Q0 x: ^ x
global-reputation
2 |7 y- y0 a' j: Wcredibility
4 e5 a. x( K. d7 m! i) @;;评价可信度,每次交易后都需要更新) j- Z9 a* e% t4 }$ y8 w+ A/ [
credibility-all- ] r" J0 c. Y$ a
;;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: J) K5 O; o G1 ] u2 j s
1 ^. f9 G0 g3 v, U6 p) m6 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
* N- E& x4 ^5 q% f5 P6 u% K1 B+ R/ gcredibility-one
1 m5 [" [* Y6 N; x8 f;;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
0 Q& d% }- T8 Cglobal-proportion
; y: h0 [, a$ d6 B( N ~7 y- w5 `customer& s* _# |2 H$ N4 S, ]* x! A& M, c; @
customer-no7 w* \5 g! |; j- k
trust-ok; e, ?% U. R, A' t( y' _2 A* |1 F
trade-record-one-len;;trade-record-one的长度3 B7 R9 A* A( i$ \
]
; A% S8 v8 n- P/ s: G# y" d$ t% d0 h9 [. ~5 P
;;setup procedure' @$ T" r( w; z" S& r- q+ U2 J0 Q
2 V3 p) o5 I9 I t* i, I+ d
to setup7 i+ ~; T2 v$ E
0 m4 t; t' O9 S' p* Fca5 J8 T* u9 v6 t" G0 R- p
1 T0 ~5 z. f/ M" [) O. k- O3 vinitialize-settings+ d9 S6 _( B3 I8 x# M0 w
4 q& K7 i* X: E2 b# ]. gcrt people [setup-turtles]3 v: W: I5 j' A( U3 H
7 N( o( T0 D0 v/ {reset-timer# e% X/ q d2 y
% E% H0 E) j/ @, |
poll-class+ _( k& [ f& _9 k
7 s" l7 Y* Q; Y f. S5 o/ G3 ]setup-plots
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do-plots n. O4 L4 c. f% D4 b
end1 q8 R. ^2 O) o5 B/ `% b
, J; U& f# L2 V$ D" `( [to initialize-settings' h( V4 {& ]9 V5 f( q6 z' R8 ?
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set global-reputation-list []) E0 q- n) D; w0 e
* J6 d8 E: h I `
set credibility-list n-values people [0.5]3 T+ \. H F$ i, x' ]4 V5 x. \
- Q2 F- p' L. @/ n3 X7 d: F5 o1 Eset honest-service 03 k. Z% l) s3 ? c
3 h6 W0 h+ m% H3 a `set unhonest-service 04 A2 X; s7 A; I% U
5 ]: l" i* L& k: Q9 Q1 L
set oscillation 0
9 A; Z. Y Q( |$ h% y! j$ V. F: n! ?; @; t
set rand-dynamic 0
2 ], p, |4 \6 I1 v) u, z; ]8 vend% i9 M: _ `* F
5 B0 G" R. u4 n% vto setup-turtles 4 P0 i5 r+ ]$ l( m8 _/ Q( ~
set shape "person"
# M% @, J# f/ ^. \setxy random-xcor random-ycor/ [' y, O. f6 J" x- n! G- P: E
set trade-record-one []5 o! C4 P& C3 \& A! T6 X# b% N8 v+ E/ e/ B
7 I9 D8 s9 Q9 C- g! z
set trade-record-all n-values people [(list (? + 1) 0 0)] 0 C, k" r' n1 R# v
. S4 q+ |. X n# ?# K& l _3 ~1 ?
set trade-record-current []" b0 E) c0 ?* T. l+ j
set credibility-receive []6 O& k1 I/ i% B7 y! r, ?1 L
set local-reputation 0.5. O3 X0 d4 v4 b' b& Z' A9 p% s. S
set neighbor-total 0
( S, c3 [1 a! h& I' p7 n; Tset trade-times-total 08 x% a; x- _4 B2 L% _4 c
set trade-money-total 0
" R! C$ v' O8 oset customer nobody$ l; @+ f3 G6 G0 Q# w* ]1 @, S
set credibility-all n-values people [creat-credibility]1 Y2 a7 G0 q$ Q# C0 Y4 F
set credibility n-values people [-1]( U+ s" n3 s/ I
get-color
( i+ J% G% c* |$ F) o" i( m3 q \4 A0 I: p% B/ o( h- L
end7 j9 A: }$ y( [0 u- j
7 w B+ M* e2 W
to-report creat-credibility3 Y( c; K+ r& t$ W# V' U( ?# J& l
report n-values people [0.5]
% t3 r* z" U( L4 k0 a. w/ _. E" Mend
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to setup-plots
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set xmax 30" ?9 `2 o" f9 X- P4 U' d9 [" C
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set ymax 1.0. j: W+ s" [ ?2 _
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clear-all-plots
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setup-plot1
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# R ?; {/ {$ }0 y2 {4 c8 Hsetup-plot2; x' I) e; R, t9 `( n/ [, P
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setup-plot3
3 z" l* D6 d5 Yend
: q' f, p1 C4 b5 r/ I/ }# m2 _2 I
3 d+ Y+ t9 x& X$ u;;run time procedures) [4 E0 O4 {/ E- o) K" ^" l
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to go! y$ y/ h! U' A/ j+ {; p
( p8 ]. v6 L1 S/ _' {$ [2 m
ask turtles [do-business]! J5 i$ y- f+ Z+ L- R
end( \6 S* \, R/ }. @$ V+ i7 D
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to do-business - H, V8 L9 i. Y H: ~5 K) D
( w7 w5 c/ |3 g
6 b1 Z7 Y3 {$ y+ _6 Z* A
rt random 360) X1 D. O% Z+ l7 d+ E
7 ~9 r- p4 u" s2 |' xfd 15 F* Y6 [- C( V6 ?" j$ ~
/ e8 n" O* h% e1 d8 Y9 T
ifelse(other turtles-here != nobody)[8 F6 T! k7 g7 M0 u; l4 L
; I! }# Q- Y# z/ Q; {$ a7 t( Vset customer one-of other turtles-here/ ]% g; I+ @+ B9 t5 n
; S7 u( W2 [# u* t. D: V& F
;; set [customer] of customer myself
3 m* O& m9 F9 N- X9 F$ r8 w8 l
1 d# v+ t9 a( x; l7 Tset [trade-record-one] of self item (([who] of customer) - 1)6 }4 Z3 ~6 c0 O* L0 V- M1 C, e
[trade-record-all]of self9 a+ ]: A+ m7 H* j
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: e8 I, X/ u. k; F3 w5 G5 l& n
) j4 b" m: m( v9 d# Bset [trade-record-one] of customer item (([who] of self) - 1)# X6 Q5 v& Z# x+ y. \/ P5 ^* r2 _2 R) [
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self# H% H1 P: F' N! |, j0 W G
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set trade-record-current( list (timer) (random money-upper-limit))
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% H- V* g; h. y$ q/ {2 J5 d @ask self [do-trust]
+ f( J+ l0 q6 T6 _: ~ a. t;;先求i对j的信任度
9 }( y( d5 l3 d9 u1 J4 ?0 g! H; [1 `% Z+ X' |& Q) P
if ([trust-ok] of self)8 w# M% x/ Z2 N. o' g. ]
;;根据i对j的信任度来决定是否与j进行交易[
- }5 k1 H/ o% }) {+ S v' \0 K- Lask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
/ ?& K+ V+ C+ Q' @0 G0 L7 g$ j2 _
$ }' h& x, j$ c5 }[
" G1 }& ^7 u6 v5 i: p! }
: S- W3 h% U' {3 _# p7 Hdo-trade
! R. t9 n" ^4 b6 r4 H: }' r# b9 r1 i2 e. ]$ @9 [
update-credibility-ijl: a8 b, X: c) [& I& l
- T) l H. k8 ~; aupdate-credibility-list2 f) r; c. m5 X! p+ D; L; A, U' Z4 C
' a& U& ~( @% r* \0 M9 n" n
( _. H! V" n+ B2 U K
update-global-reputation-list6 t; J5 E# ]- Z3 ]3 ]7 Y9 ^; l3 C
' i3 m& s# A6 V% l+ o* q
poll-class
5 M/ ^8 ^1 @3 t" F2 ^
& ~5 k1 X4 f& t1 xget-color
) d. K: w5 k" X* @1 b C# |* Y% ]
) n# b; G% n; y]]5 G8 a2 t. b# S( W2 b/ v2 U
3 N$ I$ _2 n( `- j6 h ];;如果所得的信任度满足条件,则进行交易
- [% S/ K9 h2 `) E# [( ?+ V$ Q0 h6 B$ ^- ~- `
[5 g& d' v; X" }8 @: v5 f
! E$ r' |9 k) M$ ~; Urt random 3608 U6 h1 m6 ~5 O& j3 [8 F
/ t# V9 J% U8 ^7 W+ Z# m6 L
fd 1
) p- {$ d) ?- @5 A' y4 \
% [0 R4 Q6 K/ E5 T! |# q% h]
% \) J2 }" F W/ M3 J
; E% O" f1 O* Fend
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, A7 J" l1 E2 j" e% uto do-trust * q/ s1 b3 S; \9 ]& r9 @
set trust-ok False+ w; k4 d7 q( f$ `+ N
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let max-trade-times 0: e' ~4 T" g# v7 b% g
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]] w8 L5 d+ e$ s! F; L
let max-trade-money 0% D) T. _7 n0 @% F
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; ]9 d1 q+ K5 r
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))9 u( v8 v" K" P3 g# j3 X
& x" h- |% r$ `) U/ J4 ?3 ]1 \2 n* c$ C( v$ L* }) Y% w" N1 s" f8 ^
get-global-proportion
; R# q- q( ^4 l! Wlet trust-value S/ N2 _* |$ n2 g3 T, D
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)
4 r* N- ]" V/ qif(trust-value > trade-trust-value)5 \) j- t1 K* E% |4 D
[set trust-ok true]- E6 }1 W7 p0 G& R; P
end
3 m$ O0 p$ C' g8 l9 f- {- S* U, I: d, p! A
to get-global-proportion
* p; g9 C6 D: j% Z9 Gifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
( ^. y( @& q c( V1 L' M1 f[set global-proportion 0]
# z+ i" {( M" X& R! c1 s1 m8 _[let i 0
. N* d. @/ ^+ r2 D+ e) G' Blet sum-money 0" @3 B( U& D/ b6 w
while[ i < people]+ C' x' v5 c2 M0 u
[
' F# l7 {# n; Tif( length (item i$ ~* L, e) S% V) u
[trade-record-all] of customer) > 3 ); o, F6 [7 g' m7 z6 u
[
- Y' B+ ^, N( K% [* I, Nset sum-money (sum-money + item 2(item i [trade-record-all] of myself))+ q4 ^. R1 E5 o' l% h' g, o: R/ f
]" |1 o; j+ i! t# P
]
1 ]; `) {. F7 V6 j0 H3 X- [% Wlet j 0
; h. a8 I+ H4 x3 u) j7 Y: j8 ?let note 0
( U' w' }) K8 t/ w7 p& _while[ j < people]. ^, ~+ w' ]& _3 L3 }
[
) Z0 W p" x7 F" X' g8 G$ r6 sif( length (item i
; r) Z5 d( B+ V0 e* R[trade-record-all] of customer) > 3 )) c7 j/ B1 k; I/ L2 R
[8 a+ c9 X L$ _& D2 R0 ^$ \
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
: O: v" R! v/ Z# F# 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)]( l m* ^3 L0 @$ _( V2 H& f: v
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]" m# X0 ^4 F5 k/ R6 X* h5 ]
]3 Y: w; Z- Y1 x: ^% z+ |' h
]8 y" k' v, s8 m, F# f% P, C8 S' x
set global-proportion note( i. c$ I# a4 D: A" V* f
]9 Y# L! t. }! l
end
2 ?8 M, h- u' m4 _3 Z8 M
! [0 ]- G) b g, T4 Lto do-trade
. x7 X( w5 L% T;;这个过程实际上是给双方作出评价的过程$ W* _" [2 D$ v- z7 ?
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价, ~4 R3 |" T& V$ g9 ]/ F5 p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
& }: R) J& B/ E5 Dset trade-record-current lput(timer) trade-record-current
8 F1 b3 K" A7 d;;评价时间$ } G+ r+ t5 x/ f+ A, h ^* P; o$ ^: C0 S
ask myself [3 x9 m4 r* [- k \! U
update-local-reputation. G: W- g3 [3 m4 s% X) o/ x
set trade-record-current lput([local-reputation] of myself) trade-record-current/ |+ O& x- L9 t, d7 L( o
]
$ F' Q$ v3 c7 Q( X) i1 r" M2 n' G6 Rset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
- J0 ]4 ? h! K: ]- t- f+ o* @;;将此次交易的记录加入到trade-record-one中
4 L+ x$ @" r* h: V9 ?set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). W0 C5 o) y5 w/ X; M+ |1 p
let note (item 2 trade-record-current )% \/ w. ^0 ?& Y2 g o: z0 ]
set trade-record-current
: Z; n7 I* K X+ u f% y( ^+ N(replace-item 2 trade-record-current (item 3 trade-record-current))9 Y( |' |% A+ |- q- a* I: F3 z. I& h
set trade-record-current/ K5 s; x: ] p9 Y
(replace-item 3 trade-record-current note)
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ask customer [6 j9 D7 {# X! c
update-local-reputation
3 T9 o" T1 F$ a, B; l9 nset trade-record-current/ l- e7 [( y/ s1 u
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) # o, T8 C* j1 I9 n
]6 T1 W( t- t* w" c! X5 X
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& n5 v9 h* |' P" ^) Zset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))$ W+ X5 H# E: f& U
;;将此次交易的记录加入到customer的trade-record-all中$ I: n. V8 T8 q+ P* E8 r; W
end& w7 n2 U( E" w8 ]* s
3 \2 d$ `8 O- `' _
to update-local-reputation- J: T* x( w7 \6 U P
set [trade-record-one-len] of myself length [trade-record-one] of myself
p6 b- \8 z7 D& S2 J( q
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;;if [trade-record-one-len] of myself > 3 . B5 I9 v% J+ }. Y' P# w
update-neighbor-total
" |$ I e" b- v$ O& C% m;;更新邻居节点的数目,在此进行1 h7 |& c$ ]2 a/ H* w+ J3 Y
let i 3
. k# w3 K7 P" z5 ?3 v* v- mlet sum-time 0
! z! F9 U& U, u+ fwhile[i < [trade-record-one-len] of myself]
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; j# U+ N: H. b/ _0 Fset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 }$ c! D0 `* ?1 ?
set i, d4 [; ~8 |' s. O
( i + 1)
: x- e" [3 h0 ~& W' `) u ]]" `0 E! `' h8 ~1 c+ \3 r
let j 3
, [( ~1 J8 Z: ~3 h4 i% R+ Elet sum-money 0$ ?8 r- c2 O8 }- t- ~8 k
while[j < [trade-record-one-len] of myself]
! _, E+ o% E' b- A9 T+ g/ X% |+ N/ W# n[+ g/ ^5 |' q0 R+ n5 X( Z: w) S T
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)
0 I/ t2 f& w2 g6 y# z1 X( ~) K, Pset j/ _8 e) a( l- ^1 {8 f7 c
( j + 1)
9 H/ ~. q3 a f) v3 B' h]
% F; [" b$ A; X! |let k 3
1 Z& G& L; ]6 r) w. k5 Alet power 03 X- [2 `8 `1 {4 T% j5 @( H' H
let local 0. Z$ i9 {7 |% L
while [k <[trade-record-one-len] of myself]: B0 c8 E! b" s- Z1 H% G7 m
[( S0 j% ?1 ~7 v8 F6 `9 ]; ?
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 P) K- U+ P! U4 `
set k (k + 1)
% z$ r# U& V3 ]]" N u3 [1 K$ S; i! n
set [local-reputation] of myself (local)
9 g8 L6 W0 Y! J0 `end
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; |! B& h9 R) ?$ s6 o# i9 d4 s5 [to update-neighbor-total6 I" X! p. B, j1 G# g+ x
$ X' W- C% b# y [0 Z/ z' X( p
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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* G+ ]- P( ]: i5 U% j
1 J+ A1 _* F6 e" l' X- G1 zend8 T) I! m& P) F& u! n* v
7 V+ n1 y5 B u; d
to update-credibility-ijl + i& x% \7 i8 a7 n
$ b2 z0 K: c: k1 @
;;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。( v( e+ N- |# n# M$ G e* V/ M
let l 0
/ n. b6 J P5 V, F3 pwhile[ l < people ], t) |4 \+ J( b5 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* z! i# n7 r# x% M# z4 I
[" L: X* `8 Y; N0 S' F L
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
" ~: J; C1 U- K, Lif (trade-record-one-j-l-len > 3)
! Z" |8 }' z1 `[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
O T$ v- `" Q5 R Tlet i 3) P" E+ N! \* L* B% t2 |. w
let sum-time 0, `/ [+ W7 ~% \" N
while[i < trade-record-one-len]( P4 v6 U' C& D' M i
[! F Q' ^! V8 {1 r* `
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )2 E* S1 l+ O$ F; e, t- L6 {2 t) g! o
set i6 e8 A8 D' u7 X6 O4 [% C
( i + 1)/ B1 N2 f5 c8 Z4 y
]8 S6 c( j2 Q, N7 q' I& E+ k
let credibility-i-j-l 0- h* W3 k. `- k ~: R
;;i评价(j对jl的评价); J( o! n' r/ s
let j 3: K* g- A" T; t9 \8 C' ^
let k 45 Z0 x: f {: r% ?9 u
while[j < trade-record-one-len]
! ^# R$ u# m) T% _8 w" s7 ^[
4 }# f. J2 n; e' P% g4 o% 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, Y( f$ [* Z, L5 F
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)
' B e, W& X- k j$ b0 Bset j2 E# Q8 U& u" t% B/ L
( j + 1)
0 O: z" c& R, e0 R]
3 X: z7 a$ X2 V; _3 [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 ))
) e5 V0 v7 _3 c1 W! B; R6 B1 {1 v
# y/ [' ~1 X6 f0 C7 L: {# n' _: ?5 L Z3 y. @
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))" I G; c+ W9 d5 q: f2 S
;;及时更新i对l的评价质量的评价
7 y: F! N9 o. F2 X& J) ^set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]( |8 D+ `2 N, Y3 Z
set l (l + 1)4 y3 _9 x7 W" `' M" W& } U3 q
]3 ]: A, g( F$ w' y3 X5 S
end
9 F/ D# d* F2 [5 q) t( m* G8 m0 d2 a
% J6 D/ G/ a, @! j: @6 ?to update-credibility-list
" N7 D6 _+ a: V+ ^let i 0
$ T3 E* |7 u% @" h( e* Z& y0 owhile[i < people]. G/ K2 j7 W2 }' X X! @
[
~" }! p/ T4 Mlet j 0
]7 w/ S: n0 u; A8 q! `+ Plet note 0' K! j0 p0 ~4 x, ?" B) {
let k 0, ]: I0 @) s7 j L: d
;;计作出过评价的邻居节点的数目
: Q9 z, {! ?* u9 r; I0 \- P- mwhile[j < people]5 L$ L6 V$ Y( a
[
$ \9 D& m% [0 E3 s- |if (item j( [credibility] of turtle (i + 1)) != -1)- Y( j% J6 ]+ V6 A( C8 q
;;判断是否给本turtle的评价质量做出过评价的节点
, u e4 m- z# P p; q[set note (note + item j ([credibility]of turtle (i + 1)))( w* A9 y. w" Z! F9 C7 `6 e
;;*(exp (-(people - 2)))/(people - 2))]
/ |7 {. @1 ?2 W' d5 ]3 t9 qset k (k + 1)* F k- c+ ]9 ~7 D2 A. D0 O2 c9 Z2 W
]
0 ~) x, X. A# K. ]# b7 ^, xset j (j + 1)
( G3 {) T; j& E* i, ?% [! \& ]]
* m- D( M% e& xset note (note *(exp (- (1 / k)))/ k)
6 m4 M- a2 p" ?set credibility-list (replace-item i credibility-list note), X9 s/ d: H7 R3 U4 U+ s) u
set i (i + 1)( V3 m% v3 U: F
]5 c) `& {% s; n8 |& \% W0 V
end
+ G0 O& h, e0 j) S1 V, _) t$ Y
9 w+ e Q; @/ O& g! pto update-global-reputation-list
; n s: @4 `' k$ f6 K* s1 @5 ?let j 0/ s& E }: N L g8 Q4 H3 m. O
while[j < people]& u0 O" |# Y# ~" t
[2 ^' G% G& v' l8 }# p3 C
let new 0) Y u# p( V" L# e2 C
;;暂存新的一个全局声誉, z0 }4 l6 y( G1 n5 A3 j
let i 0+ R8 t/ Z# v' Y! d; X! y: Q5 P/ x
let sum-money 0
# }& d( a, `" y& T2 \" G% m7 @let credibility-money 0 \" @9 y! c1 K9 ]- o4 t
while [i < people]/ B, _, V g# c A7 F! f5 U7 K; G& e7 u
[4 W* i' z7 h6 H4 y' V
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))); d1 F9 i$ p, ?6 N+ g% a
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
% V& U3 x, _; _/ Z. rset i (i + 1)3 b+ Q2 [. V5 W
]9 s4 R# B8 H2 H: i( t
let k 0
& ?5 Q8 Z( c$ \% t1 F) Llet new1 0
6 e/ ?+ W9 V' Q, {4 l0 ^while [k < people]5 [( t. u& E1 W& x# X" {
[
% W7 v5 h! V6 Cset 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)+ Y6 R0 s, ^ I: l0 h" i8 f; I# \% O' e
set k (k + 1)
# m, s; ?+ K( e+ E]
7 B% B9 O, ]7 |5 z! s) ~set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ; h% t$ R3 [, v" p7 a; n/ D
set global-reputation-list (replace-item j global-reputation-list new)% D7 r% K8 M+ _" X4 ]) x/ p
set j (j + 1)+ o- r/ ?8 Y @
], \0 d' c% F9 ~9 b- @) L7 Y$ t! ?
end
) }. ?4 g$ n" c6 y( I6 i+ s+ P. x- p0 g0 ^ V
, W7 p# M; U0 H* G/ k! w3 q
( g( D( n! X1 D- N# }1 P5 \: n8 ]to get-color
u8 C9 L( i' T5 ?- G
& ~$ d0 B/ L; L$ G" A( h: Mset color blue3 l% r9 q6 B) L: w
end$ D4 Z' d+ ^1 @3 Q" l5 H- _
6 D# ?& |1 Q, @4 Z! D. U
to poll-class9 V/ C/ @9 C( T0 |- p
end$ |2 O7 \' d. J3 k
! s. j. u @, H4 w$ B- Vto setup-plot1
# X g9 a$ O8 H& L& u5 |5 U! o- s' N7 [) ]& o2 }2 X) ~- {
set-current-plot "Trends-of-Local-reputation"
- u5 B5 J; ], A3 }% m. R7 T: x/ C+ X
set-plot-x-range 0 xmax) t: U3 [! E" k b
- ]* ] S, @# Iset-plot-y-range 0.0 ymax
+ \! Z: T. q& D0 p! h4 a% p$ h& ~end
0 r- U2 Q$ \4 x U+ V
% D6 ~1 F$ c2 N& P2 Nto setup-plot2# D( f5 V) E& D/ B+ Q( V/ u% p5 @
2 n7 r. T7 J- M4 Bset-current-plot "Trends-of-global-reputation"& |$ ^1 A5 Y$ x6 _- c! x5 D9 c" d% i
& i* |0 _7 N0 S2 K. p. J$ P3 }
set-plot-x-range 0 xmax
! W' e* @% f4 {2 @- n4 M+ S' }8 W& Y( `, y
set-plot-y-range 0.0 ymax
( F; K- u0 J2 }+ aend
2 m) c& M: P9 B" e& [7 T7 I. `; s
5 Z2 l" @1 R" |3 R3 p' `to setup-plot36 u2 ]1 b# w. q+ y; u P* U
# \- J' |+ b% x: L* l& wset-current-plot "Trends-of-credibility"" p* I7 e, I0 w1 V
7 H+ ?" Q: u8 r7 B4 iset-plot-x-range 0 xmax
5 O5 T" W; q& U; N3 \2 ~+ g% ~- |) S& J7 ^: P
set-plot-y-range 0.0 ymax* T& ?5 c# R2 i0 t
end/ F: E1 D4 i9 ~: [
( {9 b* R+ z& t! O5 Y- y- \8 u4 cto do-plots
/ C$ ~9 [0 y: f* V8 H) H' |set-current-plot "Trends-of-Local-reputation"
( [* ~0 l8 L8 v: ]set-current-plot-pen "Honest service"
/ X* k0 n( j. X6 ^* ~) F& Qend/ `- ~" C. R7 h2 W
1 H7 g9 e2 G6 g# {( V; J
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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