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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
* i) p& j! Z( B) b+ _globals[
' Z6 _: U" f2 q! T4 wxmax
- y1 S! ~( x' F+ O6 o1 C1 {4 m y4 Lymax
6 Z6 z) @0 v1 t/ h: ~global-reputation-list
1 t6 e! K9 s5 `) l7 y0 w; U$ [6 e, |& x- j4 o
;;每一个turtle的全局声誉都存在此LIST中$ S5 D" m; A, h& P. Y1 }
credibility-list
% i( G0 }, d1 p+ N5 s;;每一个turtle的评价可信度) C. [! p& f& K/ i* O
honest-service+ `0 _0 `; o- {* ]: A& R
unhonest-service
+ x! v* c: E, uoscillation
^* f& ~0 W3 ^+ U: Frand-dynamic8 N; G0 A; [6 m3 b5 _( A& P( T6 ]
]
" d P" H; k& ~
R9 d. J2 l7 U( W0 E6 gturtles-own[$ U# t$ ^, W u& }4 O
trade-record-all; p V- K- B1 |' `- @. n4 {
;;a list of lists,由trade-record-one组成( u! e' e( v7 l4 l7 `$ y1 _
trade-record-one; Z( o; C1 E# X5 Z
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录) Q1 o- A; y5 _! n W7 `. \
5 F$ Q0 y6 }- Z8 |8 {;;[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]]
1 ^" I7 N$ C, p5 B2 [% strade-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]& y0 \$ J9 o6 b
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
/ w4 i) p# k% r8 W4 {4 lneighbor-total: t$ X/ [5 K: j/ G
;;记录该turtle的邻居节点的数目
, O& E0 w% V( h7 x3 l# w! htrade-time
Q5 j: I5 g5 z;;当前发生交易的turtle的交易时间- l3 _" R3 _* r. m4 Q5 H
appraise-give
) R& s2 g, }+ B. K! s0 O% A* W6 k1 k1 V# `;;当前发生交易时给出的评价9 P8 r1 z6 a& w: z: E0 A p% x7 \
appraise-receive, q% Z& R/ I$ Z7 \$ g
;;当前发生交易时收到的评价6 l1 x: q0 P8 G7 o% F
appraise-time) b8 b4 ^5 x) m* e( W) T
;;当前发生交易时的评价时间* g5 l4 R2 [, d9 R0 W5 P* k
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" `7 A% k$ ~' J/ @3 s7 z/ W' W2 mtrade-times-total N9 I9 K7 t2 V9 B) o2 l. I$ I
;;与当前turtle的交易总次数
9 z/ n# E4 u" w+ Q' R3 B) M ttrade-money-total
% H2 r0 t4 R( A* d;;与当前turtle的交易总金额, K' K+ _- U! y
local-reputation' J; I1 Q% N+ D% M& E
global-reputation* |/ |$ j" q9 m# R7 g4 h: o9 O
credibility
( k8 `6 R9 o! h1 b% ];;评价可信度,每次交易后都需要更新& g) s i |: L! W2 a7 G" W) {( L
credibility-all9 ?) p# c7 c$ 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5 G: R2 G |5 H" H( }, i
2 h0 k' c/ r* O* q2 R+ y
;;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
9 m0 |; _, ~% ?" |credibility-one
" _' I8 \3 g# o9 r( }0 W# q1 \# B S+ A;;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# B0 ]: ~9 q$ T7 Z
global-proportion# b! S: d9 h6 z% m$ j0 {* T
customer
- X& m6 ?! Y% t& Gcustomer-no( o2 y0 Y- F% `- O4 [: D0 g% d; h
trust-ok
& a2 {9 L* w! h2 u" {) `% Mtrade-record-one-len;;trade-record-one的长度5 X4 p& _4 }5 h \2 ?
]
# @% p8 W' I; ]/ ] Z
4 V5 ^7 n! j1 I* w;;setup procedure4 i9 G- L! G3 U) x* e
( Z# w5 S: y4 w9 Zto setup
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ca
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! h3 e3 V$ M/ hinitialize-settings
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4 o5 o& G6 a- j% |5 B9 icrt people [setup-turtles]9 A' l5 X5 R4 @
: k7 I |8 k: {7 h2 h2 Vreset-timer `5 e1 c, Y, K) B* R
T0 |; |( L2 f) v/ T
poll-class; j+ o# E9 O+ S' j% H8 {( d4 N
1 E, `- H8 a1 ? I1 i' Vsetup-plots; n- E: J) Q7 r$ E, B8 W8 f K o
/ Z6 I$ R- i8 H# m& d
do-plots
6 v5 x* o& Z4 h. \! O" Lend
' I. z4 a. {; C) v& c- L2 H; l* a/ F
- i) O0 A/ S4 S: E' }; V) Kto initialize-settings/ v5 B6 B3 k. L$ t- W- {' Q
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set global-reputation-list []
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set credibility-list n-values people [0.5]8 c8 w; t0 T4 u$ D. r' U
! ^4 t) v8 w& t! w/ ^$ c" F
set honest-service 0
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' s7 ~/ M( N, Sset unhonest-service 0
) ]; R6 h; T8 }5 h- O1 }! ^* N" Q3 u$ ?8 y
set oscillation 0/ ^3 [, B+ s; c/ e- }! {+ C" F8 a+ |
9 T g& R% p1 n1 l, ]set rand-dynamic 0. j1 C: T" p& `9 b. n
end. V8 w6 c- ?: G0 ?- i- s
0 I2 U5 R+ z0 ]8 ^4 k3 C8 Z9 l
to setup-turtles
. F4 |3 t' h1 s0 r) s% gset shape "person"
: \2 r0 ?% q- Wsetxy random-xcor random-ycor
7 X, r Y8 Y K0 r0 `set trade-record-one []% F. w' @/ p; e/ D2 o2 |% O, Z
" d" H# J# s2 m$ q
set trade-record-all n-values people [(list (? + 1) 0 0)] % \6 o5 L5 D3 R
5 c+ y0 i3 D3 T* A" o$ eset trade-record-current []4 M6 h3 s3 ]5 |8 i. }' j4 [: s
set credibility-receive []
8 @7 y/ u3 J$ c3 O# t" Oset local-reputation 0.5 F* E) |+ V' c5 I, S) ?' R0 ?+ C
set neighbor-total 0$ u4 R. E4 o" K$ b; v' O
set trade-times-total 0( b N6 \* M# ]6 l
set trade-money-total 0( H* G/ i" C) K. i
set customer nobody: a6 H6 X: S& w5 b8 {. y/ M
set credibility-all n-values people [creat-credibility]
0 m* b6 D. R0 sset credibility n-values people [-1]' s5 q% h1 j# y2 R7 H, ?
get-color
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end/ G0 T' {; K( u" w
) `' L2 n% r& v; p* c
to-report creat-credibility
. L- y: T0 ]/ {- K2 [report n-values people [0.5]
4 B1 s8 E m6 p# c: {: ~0 R' hend
, @, O) R* w) P% r: f2 h
& N: a! K4 ~) l4 G- Wto setup-plots
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: g$ y8 o$ }5 J8 v5 Zset xmax 30
% P. O" x4 e1 F
: t" r2 c( N' M+ qset ymax 1.0$ T8 N3 T$ q6 b( |8 u, f( A
* I, E- z- I$ a
clear-all-plots
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setup-plot1
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* G$ Y! l. E$ X% R8 hsetup-plot2
/ z6 [8 m- V1 K; M+ `: E
( k9 }" F2 q' e7 v0 H1 Dsetup-plot3
3 ?' S# f: N' K+ u* ^& _end
# r# T2 U# N7 M& i5 M0 t
$ }* G! w- ]3 l: g% n; k9 z) h;;run time procedures- E7 L. O( }: J. b, f' F/ s
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to go
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ask turtles [do-business]/ G( }; a3 p- Z3 ~
end
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* }, k5 I9 g3 R0 g( V4 {! hto do-business F% V8 d' o9 f6 s) i
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1 Y) m i( `8 n& mrt random 360( c2 t9 x& H- ^3 X; \% x! C
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fd 1 v S8 S# a0 H- Q
4 v- {' ?; l; b& s5 C1 C6 Difelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself1 j. X. }; @; {- v
6 R+ [9 [& f: Y/ s+ Iset [trade-record-one] of self item (([who] of customer) - 1)1 G. J1 C' J$ ?2 x( p
[trade-record-all]of self4 F! P* I; t% a2 K* b
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self2 r _% n5 @$ r6 Y* D
: `2 k" Y+ t% f: Yset [trade-record-one] of customer item (([who] of self) - 1)
+ n& U: P' J, v3 t1 j E) b[trade-record-all]of customer+ q- d1 P2 a: L! ^" c+ O
" v& w' ~4 E, @; v. D4 Jset [trade-record-one-len] of self length [trade-record-one] of self
( ~; k$ o8 w- `+ {* W! e! z* M: i' |6 w
set trade-record-current( list (timer) (random money-upper-limit))& r' G8 ?! ~. g# m
# J' m J, ~+ d0 _ask self [do-trust], L& S) V& L7 i! t
;;先求i对j的信任度* r& W4 a$ `1 ]# E9 Q3 R6 o: P
% J0 H4 U+ }. h. p
if ([trust-ok] of self)8 t0 ~7 y! s9 F5 s- O0 O8 P( m
;;根据i对j的信任度来决定是否与j进行交易[7 o5 x/ v( L7 M, r3 T: O/ m7 X- Y
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 y0 P& j+ r9 v
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[+ B2 W% ?+ F. F) W; F" O6 F$ M, G
]/ Q/ a6 A. @5 y3 p
do-trade
7 m2 [- S {; m# p* K& R
1 e# c9 s6 N; X1 Gupdate-credibility-ijl
$ n1 E1 _6 W; E3 v: j! `& O
3 q% h, D$ c" |5 a9 Z- `update-credibility-list
_0 `4 |9 i; P* y1 C! {8 D, w* I' \: x' C7 K4 R% D
) S% P6 U1 y9 C$ L4 Qupdate-global-reputation-list
3 f1 a; |2 k2 X& Q1 R: ]# ?5 A8 l3 c# E/ S7 n; G. N
poll-class
) o4 n. J9 }7 u+ P% ]
$ u5 ]! u$ Z1 s( @. P- ^' Rget-color
0 ]) I1 v4 |/ a0 H$ i5 Z
- M# M" o0 S7 |1 v+ z) f]]; U% C1 O* A5 B4 |' p( u3 m0 E
y, T8 v$ ]. E* i5 J- c;;如果所得的信任度满足条件,则进行交易
: Z2 h P- ~9 f4 q) Z9 w4 o, x, W, C8 w7 q+ k
[3 [2 d( G7 P) x; w5 I. u, k
7 \: G- T6 ^; f6 [$ ] p! x" Krt random 360
h/ Y, W8 d2 ~5 J2 G
! P3 w# H* t) q, m2 yfd 1
/ Y! y8 m/ s8 e* {4 G% ?
" X) \4 \: D* ^$ C: o]
, K2 q3 z0 }# o/ v
. U. D+ i) I' h7 A- Wend \# w) R/ [8 g5 G8 W8 g, ]
e; i6 b' [% i( vto do-trust
) p2 Y2 p( \+ {# Z% ]# k% {set trust-ok False/ Y I! d7 i: g1 Q/ e
, D9 A6 Z0 ?* S' Q4 R6 H- D
. t# {; a ] ^ g4 X4 ^/ O
let max-trade-times 0
) F2 X- c. {: K& u* c% ^$ M; Lforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 d2 C! m7 Y8 ^' q4 e, r5 N5 qlet max-trade-money 0- t$ R# k; d; G5 w; Y2 |. y* ~5 s
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
4 c$ p& B; C/ N( _let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
& O N, V8 ?$ o
& L6 a/ L; `/ S. Z- L8 o) d; j3 F& D) S }( j; v) J' m2 F* g
get-global-proportion
% I- q; n0 W9 f1 A0 r! X$ xlet trust-value
+ S& H' |# \ A1 l( l8 c6 {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); t4 [, X3 p) y$ E7 N; n2 l8 n. ^
if(trust-value > trade-trust-value); [3 d2 Z6 U7 k
[set trust-ok true]9 G% q* `7 u0 d0 y) o& }- W% n1 t
end A3 L2 O/ ?# a- C- u8 p
) S. V: q- f7 `* `9 l' @to get-global-proportion
% s2 w5 U3 f. F$ Z% n8 Qifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 w9 ^4 y( B( k) }4 d0 Z[set global-proportion 0]0 T& n- y" \3 X) n# x) Y* s
[let i 04 j. C( X" z0 M4 e4 U# b
let sum-money 0
, X/ E) @' s' V4 F& wwhile[ i < people]
" V$ Y$ }/ ]6 p2 v" K- }3 S5 T[5 I/ J6 n7 G; S1 ^" f. g, d
if( length (item i
; x5 i: y7 a% z: e[trade-record-all] of customer) > 3 )
5 n# }6 i% u* D9 D[ H4 `+ Q- g4 b
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))2 y& z* [9 _8 t. C% w
]" \9 A$ M+ ? Z) C& @
]
$ |9 X% y8 c" `1 v/ i Rlet j 0
6 k$ C! Y7 a; b* Mlet note 0
! L, m7 K- _8 U% e: dwhile[ j < people]9 N" t0 Q! H8 C6 V' ^. Z) j
[! W9 O% M0 ^7 y8 D- O5 |- \
if( length (item i# ~; b" w( b' A9 ~/ i2 ^6 K8 D; a
[trade-record-all] of customer) > 3 )" |, `! [" x( d! U
[: g; K$ e2 N9 e( P% x" }7 m0 h
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
5 J# C5 x4 W; J" U. w% a[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)] |- l) ]* _6 r0 k) N; F7 w
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]( `0 f% _3 x; X2 C
]
" J( R6 w F7 I9 w]/ l9 [) n0 N# h4 c5 o/ G1 s1 U
set global-proportion note3 o" e6 L. n9 } U6 @1 ^
]
5 }8 ?! q' I3 O; A4 x! Aend
9 ^# O% U' e9 @, L/ r4 r, T" I: @' G9 d3 ?: o
to do-trade
" a) B& u# {4 x: K: M, e;;这个过程实际上是给双方作出评价的过程4 r$ ]' O. P( v$ l0 p* N
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价4 a8 f, v( R) s$ V' `. {' k6 y3 X
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
: A# e2 h! y9 k8 X: Oset trade-record-current lput(timer) trade-record-current4 r8 P5 n [& h1 D8 g0 i) ~
;;评价时间% e- B) j3 b3 O( e* H% x; Q* T
ask myself [+ X- b2 y0 H$ ^, _& J1 w
update-local-reputation
" F4 L& Y2 l8 h2 ]6 L( Lset trade-record-current lput([local-reputation] of myself) trade-record-current
& Q4 C& b' I2 o: b, E]
$ a( d: o! J% t' s2 i/ oset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself W# I" {. f# q. H: I9 F
;;将此次交易的记录加入到trade-record-one中1 q* d$ r2 d# Q( e0 X' @9 O5 T
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
# [8 t- [% j+ C# L$ q" jlet note (item 2 trade-record-current )
; q! h3 {# X$ b' E8 w! B( Cset trade-record-current- N8 e7 u# m% |. o& g5 v; r# f( }. n0 v
(replace-item 2 trade-record-current (item 3 trade-record-current))
' b. R/ V/ z( n9 s* M; W: {set trade-record-current# R3 h" U) D L# k$ M$ Y% h
(replace-item 3 trade-record-current note)
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& E2 R( @! d+ f- t' {5 e) K- _
Z+ e/ T. O; ?6 K" n' o% Jask customer [5 Y: x/ g( j9 q' T: M4 _
update-local-reputation* Y& f7 q: D3 Q5 A; L! i
set trade-record-current
0 ~" a7 c3 E" t(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 6 O) y! S% E! n% E! w
]
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; R G) N4 W& e1 n' qset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
/ i- b' \% A$ Y1 D9 p, S: M7 ~
3 ~5 C W5 G" n8 u2 ^2 a& g0 jset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
1 k: l9 p4 `1 r! X1 \" B;;将此次交易的记录加入到customer的trade-record-all中
; b( m# y/ W5 l1 R8 f$ Hend6 m1 p' S3 x* P+ `; c! |
- F: k4 S& m% @+ t* L8 _to update-local-reputation
" e6 D5 O& L, G' Hset [trade-record-one-len] of myself length [trade-record-one] of myself
9 F- P) \1 j' i1 [" Q0 j- C! g1 ?5 A; z; d
1 r% P) o) i. }2 w9 c5 U! |
;;if [trade-record-one-len] of myself > 3
4 ]. l% n# u3 h0 }( W1 gupdate-neighbor-total% A9 S; j5 _+ O4 B" u4 j# U( c
;;更新邻居节点的数目,在此进行0 j+ n& g/ B. m4 u
let i 3
; s( R7 { g# N1 klet sum-time 0
7 F1 }4 I. K. [3 o% S8 g& w4 r/ nwhile[i < [trade-record-one-len] of myself]3 w* m5 H; g e4 e( G! p+ F
[' _4 T8 z! e; Y W9 V" a+ g/ F
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 L. K" ^6 f- c+ p7 T
set i
/ X, f+ K! x0 L( i + 1)+ }5 x# ?5 }/ K% \2 M; v& U
]
3 Q% v6 ]* x$ V$ H) }let j 3
- ~0 V0 `& X' r+ v6 Elet sum-money 0
; a8 ^* v$ l. ~8 _) Pwhile[j < [trade-record-one-len] of myself]+ Y% q- y& v8 T9 T% ^
[
* Q* N; n5 P/ W8 U6 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)
1 ~# U+ m" i. w$ Rset j6 _! _9 W# X. Z- i/ Q! T8 H
( j + 1)
- t: g* @; l: E( Z; Z], t9 ]! A' T/ w% t0 S& j/ G
let k 3$ @9 P% a) p- a" r5 d- c
let power 0
7 [3 T6 Y J3 G) O- N* j3 slet local 02 C: Z$ W$ \; H6 k. M" `' ?, V
while [k <[trade-record-one-len] of myself]
+ ?% Z' I! e# z7 a3 j) ~7 {9 }3 o[
3 k6 L+ ]- a% N, o/ z1 J) F( _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)
6 `/ r: s, j( e- U8 I& { Jset k (k + 1)* q4 h) g+ S }* u3 }; [0 I
]
0 Z. t1 e! o9 o: p9 u6 Z1 Dset [local-reputation] of myself (local)$ \3 y- ]" I' r# _
end
% b3 t3 s5 Y) C7 W" p' n
; `' h/ R: k9 C* j" J$ rto update-neighbor-total
& b" e4 B1 Y7 L! t* f# n5 V( D5 n( {4 g6 w% K: T2 Y
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
5 z- h/ n7 C$ `3 u& p
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) U1 ]3 N* p' K/ X7 c3 Pend+ ^) q( E& t; i N6 ?. k0 W
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to update-credibility-ijl
* H+ [6 I* z5 g, O& x u- s# r# }; L6 s6 I
;;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。* X! B- `$ k: L
let l 0! N5 Q7 P- M/ x" K
while[ l < people ]
/ K0 Y% @. _* R3 Q# ~$ 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: x9 w! L* \; M
[! }; `) _8 r3 W% s4 Z
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)+ X/ F3 m3 y' ^' h. r* d2 K. Y' ~: I
if (trade-record-one-j-l-len > 3)# x+ @" j5 ], H8 W5 f: ~+ V
[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 [7 M+ e7 M1 I7 G4 d9 p! S" Q" xlet i 3
( ?4 b* r, B) `9 Zlet sum-time 03 f! [+ h, a Y" R% k% T, c
while[i < trade-record-one-len]- D: n; G9 X5 X5 B8 A) t7 m r( N
[: P# Q4 g' c1 C0 p
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )2 l1 J! N, {6 { d4 O" ]
set i: Q0 N# F0 _& [, `* @
( i + 1)4 ]$ \% }: \$ B% ^) Q, v6 ?
]
6 `- R3 _1 I v; t/ ^/ Q7 I" ]5 K) Y# jlet credibility-i-j-l 0
. L7 z0 `! l# X0 P5 F;;i评价(j对jl的评价)
8 ]; a+ Y9 U2 y a- |6 }let j 3! c, V3 t' w9 X8 r3 ]3 @* u( I( V
let k 4 R* @" b5 a6 C% ]
while[j < trade-record-one-len]+ N' d1 ]3 D& q
[
! L: L8 P1 n0 ~; s9 k4 _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0 M3 J n# e$ |* _$ ` I
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)* I- w( U. J* a1 B0 T- [
set j0 v5 c2 ] t6 f6 g* \% Z
( j + 1) p5 J) |* k& J# g
]3 [# i4 m! ^/ A5 n8 _' z
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 ))
. u' R+ t( `; K; j
5 s2 [/ E" a2 U
: N; }; C2 |, P; V8 p1 ^9 g, Dlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
0 x' e9 d) g3 L2 n3 q9 L# N) K& _;;及时更新i对l的评价质量的评价
. {6 C* L2 X7 t# e8 gset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]4 @8 r$ [7 A9 h( h
set l (l + 1)' q' g7 ^9 x6 a3 ]/ d3 a
]
0 N ~1 s0 Z% W) l- qend
) x6 t2 C5 H5 ^9 G/ _* `) ?
& B( S4 H2 q$ O9 zto update-credibility-list
* Z5 J9 s( w: l: g: s, ~- p0 Klet i 0
+ g0 h$ D3 ~7 o; z: I& t( C; ywhile[i < people]% z$ R# I9 N* |) h3 }% J
[
( D- v6 [" \& N- Q5 q1 rlet j 0
2 [. l5 R4 _7 \( w, dlet note 0, l, f7 n! S W1 p$ w' g7 S
let k 0
# |' g S3 G/ u;;计作出过评价的邻居节点的数目
1 J- @, O( ?( Z6 Jwhile[j < people]- \% f; ~3 |4 }3 O$ m; r, V' }& b; ^
[
) D+ Y; f7 s3 d% uif (item j( [credibility] of turtle (i + 1)) != -1)$ m3 s6 z" V: j% ~$ ~( i
;;判断是否给本turtle的评价质量做出过评价的节点
- A5 A0 v& F, U5 B8 _3 J! I[set note (note + item j ([credibility]of turtle (i + 1))), Z# g- g1 [+ \+ N& y2 M4 `
;;*(exp (-(people - 2)))/(people - 2))]; o8 }% w, Z: Q7 u* m. O: J* \) O
set k (k + 1)
3 Y5 t3 M2 a& d3 b2 K% b]
( n# f1 Z( j% G( yset j (j + 1)2 A ?7 Q2 Q' H4 i8 R7 f
]; x, A6 Y+ o) v. D) A5 l. f
set note (note *(exp (- (1 / k)))/ k)
x j+ z% o) F1 yset credibility-list (replace-item i credibility-list note)4 R& g$ I1 f: Z" t4 D; U3 F7 E
set i (i + 1)
1 p& M5 n+ A! o# X/ M]
: w8 S$ Z# K8 oend$ s) `) ]) J! V
, e% [7 G! s& ]" X: U' X. vto update-global-reputation-list5 }+ _) s3 \! Y
let j 0$ L! ]1 |# `4 s, W* q% D) }. x
while[j < people]; ` B6 F) Y( k8 k; p- w1 y6 a
[( u0 f8 J3 K) ]5 z( f7 l' g
let new 0
1 n, \7 Z( G/ S" ];;暂存新的一个全局声誉
* A) z2 |6 o- C7 K- t+ Mlet i 08 |5 s+ f: n0 P2 u4 ~* }
let sum-money 0
! H2 e* ?) a" i v; alet credibility-money 0# y4 Y5 Q d: z! a; }
while [i < people]
: K4 d( S% L6 b& k[
" q: U6 L5 } _* m" {" pset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))). p1 L) M8 H) ]' o. b
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)): ?. a: T( H& \/ ?
set i (i + 1)
+ ]% g& ]7 U: Q6 c]
" E" t1 W; m5 p' ^6 }4 q! flet k 0
* U9 \6 e: K$ M5 ~3 c# N, q/ ]let new1 0( X2 j( A9 z& b; c
while [k < people]- X+ | k3 u/ {4 N2 d/ F
[
; |" t' b: J: t1 [/ B8 e2 j2 Y, [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)- j$ ]- }- d% X; q. J: \% u
set k (k + 1)# K1 f3 E+ m4 G- j* G
]
" ^: m. m9 F- e9 b0 dset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 1 T( C) t' u m
set global-reputation-list (replace-item j global-reputation-list new)
. B3 W3 K' x6 i; q1 E' {) _8 wset j (j + 1)6 h% b" g) @7 d
]# w3 L7 L/ z. n$ i7 V3 }- i$ R A& _
end
+ _. B0 Y% W& w2 G2 j8 l/ Q/ f* h' \& [5 `
. L) `+ j. b0 M: c" k2 G; ]7 P
# K, f4 z f; Y5 x
to get-color0 Z4 b! @" o' D4 \, R4 @4 C# }
; k1 I& Y! R. m" [9 W" @0 ~5 Jset color blue
! w6 }- h" A2 ?! Iend
1 T2 `5 W Z1 K) S: ]9 [ L6 j( l1 a; V0 U; a5 l
to poll-class) B( S/ e2 i/ I3 f0 V! j4 a, I
end
6 p( x. \/ X% k& {, x( f1 Q& o" a/ l! c! L
to setup-plot1
0 Y" f% r0 a% d: k8 o# a" Q
) V" `( I/ ?2 K) a; p- Lset-current-plot "Trends-of-Local-reputation"$ |4 S# j9 u6 f7 J* x
" B% u% ~7 h5 mset-plot-x-range 0 xmax
2 Y- i" H9 ^5 ?2 g5 C( J4 K1 Y3 |: n, D+ m
set-plot-y-range 0.0 ymax) d3 n, ]3 m! ]
end
5 {! s8 V! ~: P7 \
* r/ f* a- p$ Q% g( A$ ?to setup-plot21 L1 i1 o9 ^$ K$ [( z/ ^% ^
* O2 f! J) ~6 _. Vset-current-plot "Trends-of-global-reputation"
! J k) O/ s$ [+ [9 w% y6 [5 }
* E2 ^# ~8 Y; v' Y+ ^; Tset-plot-x-range 0 xmax. s% M9 s3 ]# ~* E M
& E/ S( {; Y0 W- Bset-plot-y-range 0.0 ymax
( C8 K! p9 p# y# G& C1 Eend
2 X% i0 f' i$ q6 G C1 [ ]) m* U- U8 ?( \# _' u" L
to setup-plot3
3 y0 \/ O6 b' h* L: a1 s
) b6 d4 s, C! n: T& }7 W- nset-current-plot "Trends-of-credibility"- _ H7 d2 @% w. H2 w( Y2 g) o w% W
/ n& ]5 A: B* D% g; Q
set-plot-x-range 0 xmax7 ]* i. z# [% y0 C# m, l
5 G5 }9 E5 b- w! v. B/ sset-plot-y-range 0.0 ymax8 S7 `% S2 c2 E6 `: V1 s
end2 U& g/ v7 a% p p: `* e9 Q
+ k$ L L# J$ q5 Oto do-plots
2 d0 C+ h4 Y/ iset-current-plot "Trends-of-Local-reputation"
+ P4 h+ A: }, Y4 }, h3 x( Zset-current-plot-pen "Honest service"& p) x8 \3 {: }5 C# W; f
end% D7 O; n( ^' X8 g- }/ n; `
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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