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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( o. ?! \) @; |$ q; c
globals[+ |1 C5 H% X6 q
xmax8 O& J! Y3 J v( q# x) j" m
ymax6 s5 j2 z$ U9 r4 i. ]) y; W b- v
global-reputation-list& m2 [) |: l4 t! F6 ?9 a6 }' X
6 |! I% x t, y1 R0 O. v3 G q;;每一个turtle的全局声誉都存在此LIST中0 i2 m! G' h9 G5 t
credibility-list
0 n# j& C) S$ x5 M2 ~6 G;;每一个turtle的评价可信度4 f |; O8 E5 j V5 T+ [
honest-service/ X, l1 w" ^# C3 L: g
unhonest-service
( Q( ^; V* M# m+ m& Y5 ^4 t, Uoscillation
! U! i- t+ e8 k/ u0 M( H: lrand-dynamic
- A& J5 V( Z. V/ G) V]
) H' h% a; z9 L& O F3 [; [# @/ A6 d, R% [6 K5 c" n- U4 T
turtles-own[
9 }( N# O* H9 n) V: X; utrade-record-all1 a7 O g, G0 _' p& F* N
;;a list of lists,由trade-record-one组成$ D4 l0 i! p# r0 ^
trade-record-one
! m4 W7 \3 I+ a2 [6 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7 v% {) l7 f& f; k
4 ]! N' u/ }2 S5 _ A5 e9 ?! h0 I
;;[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]]
8 }; ^: E6 @- ltrade-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]; W' b2 G) T1 S5 W6 |! @$ g
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
7 |# x% d# [8 Z6 Cneighbor-total
5 e; p+ D; v8 l! _. v;;记录该turtle的邻居节点的数目
R H) t1 W5 etrade-time
U- [5 b) a" j$ O;;当前发生交易的turtle的交易时间2 m; Y* `# g! q5 i4 N0 n
appraise-give
/ N% R' I5 C% C8 R! W3 G( _;;当前发生交易时给出的评价0 o; _( P, d2 g$ f
appraise-receive* R. Y5 `* S" ^( P7 B4 E7 _7 z
;;当前发生交易时收到的评价) n6 F8 T& ~; Q
appraise-time
. Z0 d! @7 O( T) t( v$ z0 J;;当前发生交易时的评价时间+ h9 T4 k% R8 M5 L3 q. p
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" P) U+ f1 U9 `$ Vtrade-times-total. P* |- \" \* L% C# }# {2 B! i
;;与当前turtle的交易总次数
* A0 Z$ Z2 ~4 i8 _( e* n* s2 o$ Rtrade-money-total
" V1 A) \! h, M, p& ~;;与当前turtle的交易总金额
/ O, u L1 Y+ ~local-reputation7 l1 ]1 i. R9 b* c% N% z
global-reputation
7 C: u# @8 u) |2 `8 dcredibility
7 Z5 e4 \. S3 v. x;;评价可信度,每次交易后都需要更新+ K) [; Z9 v4 p2 \4 g# r! J5 x
credibility-all' i7 k' f1 K' U' d* r3 o; Y
;;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
$ U9 E/ e) D ?9 O/ F$ S1 p$ }* B# k1 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0.5% r- q+ D, A: I( p8 [% a
credibility-one& o d8 V; S4 b9 E( q' i
;;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9 R$ ~0 v. Y. n/ a T# [
global-proportion
* e9 Y" e$ F' T- Jcustomer
* S" @9 n/ |1 h9 S6 G$ ^: ecustomer-no; P' s; {: O: r. M9 I
trust-ok7 N% v, A8 X. R! L- ?6 i( h
trade-record-one-len;;trade-record-one的长度
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$ a+ E6 [; w( Y3 |4 f
; n# J* j" J7 d3 L3 y: b;;setup procedure# H. R' s- \. \0 E7 Q ]. M9 h% j$ u3 l1 I
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to setup6 d. X6 r* N( l0 L1 Q: R
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ca
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- w5 q; K! j$ M1 V( Y; j1 H2 Iinitialize-settings
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( f* K8 e2 K* }5 X8 Ncrt people [setup-turtles]* k2 r) }6 k1 C3 i
$ X% X" c @7 ~
reset-timer- m" }2 g B5 f% B, o
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poll-class7 x0 A6 l# e5 U, T- M% S: k
, ]0 Z, @* \* d8 w0 H2 u$ J8 ksetup-plots4 C& [1 L: _/ t* ?' S
" t Z! ?9 l1 o! C" Y$ t w; J' K
do-plots r. A! K- N$ k; `2 o% u S2 w
end9 k9 h5 F( @' K& W# H( b
# o2 f5 m& X+ r" d$ V( M
to initialize-settings( Y1 q+ z, Q0 P" v# W8 F9 q% x, m
5 u- y# R0 E7 p9 w: [* f9 qset global-reputation-list []
5 x' C% s! G6 h% c* S8 ?! [! t0 K) o* u
set credibility-list n-values people [0.5]
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set honest-service 0: L* L% J$ ?' t5 S2 p2 P% U7 n
0 d3 [3 Y9 g3 D! U: B- v8 Nset unhonest-service 0
8 e0 h( d% D6 G# m; u7 I0 \* h" w4 G2 ?1 s; U
set oscillation 0- m7 G. D+ r1 U. N- P' _! u, e: m
) c" J9 d8 u8 I ~
set rand-dynamic 0* W6 G& P7 O( j; V
end: G0 U: J) h: l; S; V3 w5 q4 b
# E- I" s! n* D& C
to setup-turtles
' T" i9 H$ b/ o- u8 Y+ F) Vset shape "person"5 c r, I- i8 A0 @" V/ l
setxy random-xcor random-ycor
! R) @" Z; s$ d1 C* N* {! e( rset trade-record-one []8 w- K9 M U( n' b8 v
. g9 D. x6 k8 y zset trade-record-all n-values people [(list (? + 1) 0 0)] 0 c& `5 B" d3 ~6 _$ X" ~* v0 j
; L$ j6 d. P$ X6 c1 P! _8 s
set trade-record-current []; f8 k8 P5 P. A
set credibility-receive []
3 L! q/ d: Z/ l" P% o: U, iset local-reputation 0.5
4 \- E7 ~' K' L# Oset neighbor-total 0
& }1 I9 i1 H) T$ K" mset trade-times-total 0
5 r6 y6 x0 t% Fset trade-money-total 0
9 D( B: T( Q7 Q7 ^set customer nobody
$ l6 i' ~5 a# [set credibility-all n-values people [creat-credibility]# A8 O9 d. S/ ~: X2 ~8 _9 Q
set credibility n-values people [-1]1 m# B6 w5 p B. K( h+ k
get-color
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, @4 j5 I k) `, ^0 R+ yend
1 K, O, |7 V* Q& Y U& E$ T) a. e% ~0 \" ?+ \
to-report creat-credibility
9 U( h+ `8 s3 Qreport n-values people [0.5]" f) x& }# n+ Q" K9 b8 b& S3 C% g
end
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! o- [, }, |7 ~& A4 g/ `5 m) dto setup-plots4 L2 m8 T' P) }3 ]4 s2 Y$ \& ] f
' ~9 O3 h1 U( \$ L3 Aset xmax 30- ?, G" }5 A' d! D
0 }9 [, t' \* k) z) t) T
set ymax 1.0
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" `3 J8 M8 v+ u: P; ~! `9 T5 I( bclear-all-plots
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setup-plot1% K6 F0 e+ v7 ]" \+ i6 F3 t2 n: i" d
$ }: }0 C4 v: a0 v5 isetup-plot2
Z- `, X, `0 k8 k. I, d. m D* e6 }- Q1 A7 x0 Y: n) y% M* v, u& P
setup-plot3
+ U# m2 Y2 i3 r1 rend
' s) J% k% i0 k, N, H; D
I# Z- P6 j8 s% I- b% };;run time procedures* R& e; g$ O$ r& G: c+ _
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to go
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' K, m/ c1 Z8 Y$ ^( n( Q' Zask turtles [do-business]
* j! j" L- w1 r/ pend
% W. |, V: s! ~( Y! V( p% B0 k0 A; ^0 w s2 Q
to do-business / Q# O7 h9 w T# s9 |
8 V% L3 R$ t: C; `% d5 a# C# V9 d w1 t* f+ u
rt random 360
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fd 1
; [+ K+ _# o* r V/ U
% R0 y7 o; |" ?* `ifelse(other turtles-here != nobody)[1 ^) M0 I2 j1 o8 K$ v* }! s
3 f& T! j$ V5 g2 T3 e/ K$ L; {set customer one-of other turtles-here% p) k3 g* u8 t x+ K
7 w$ t- \# q' y8 v1 h;; set [customer] of customer myself6 V" x/ {( r5 ~1 i9 X
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set [trade-record-one] of self item (([who] of customer) - 1)
6 _( M6 J# |! B! X, s[trade-record-all]of self6 u v" p3 b) P$ x$ i
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
+ `3 S7 p: _4 N/ Z% c% x: p3 g2 y% W5 e: Q. B" a# G* Z5 }1 l+ x6 |0 k
set [trade-record-one] of customer item (([who] of self) - 1): y5 R3 l# C6 O. i* @
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
: r3 x' {, ~4 u! a3 a4 F6 ^
# V. `4 z2 G$ ?5 j- n3 k" bset trade-record-current( list (timer) (random money-upper-limit))
4 r T1 U% T: M
( q7 J; f! @6 M4 s5 Lask self [do-trust]
3 I- n. ^- _; w, [- i;;先求i对j的信任度
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* X4 ]/ L. y. i; ^if ([trust-ok] of self)
( e! y6 O* z. N2 `. h9 y;;根据i对j的信任度来决定是否与j进行交易[( g9 F3 j3 j- a# K# Q. e) ]
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself4 T4 i. W" o1 z! M; Z
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[& \% u& N, r! R+ m- J" e
( S5 D+ \& Y, A0 ?2 s$ Qdo-trade
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0 K: @8 u1 n% R3 @6 ]9 j: xupdate-credibility-ijl+ M7 v' G% r0 s) Z. n
# y/ v' \( ~! `4 \0 Tupdate-credibility-list% c+ i$ J4 C. o$ J& @
( D& k& z# L! y9 B" O" z Y3 A
# W" j7 ^) k7 Z y( V1 X& A
update-global-reputation-list; j( f: k+ V5 z0 G/ @) c) w+ u$ G
8 c/ c9 I! O3 L% c; fpoll-class
. H5 H8 F3 T$ w& m5 w
2 a. Q! `$ u& k, [ D! {get-color+ f6 B6 b0 E+ s6 A
- j2 P4 ^4 c( A# `
]]
' \! H( n! o) t$ y$ G. [. Z6 j
: ~1 U; A; {" O3 C;;如果所得的信任度满足条件,则进行交易; T1 l# C7 V9 r: Y" V# `) V
8 h- y W J3 M0 m4 ]% R[, E8 ^. h8 \. D
) ?, g' s7 U W& d B1 U4 D2 `
rt random 3607 d5 q4 N+ T0 I
7 Q7 K! C" ^ @; k" J$ ~7 Ifd 10 {$ ]$ @+ L' {7 b8 f( [7 p
* Z/ y- [# }4 o8 T. b
]' a6 u' D$ G3 i
0 T, ^6 ?2 P; q# fend% N/ F# W/ C4 {& p$ O" N4 l
. W; k4 `! V+ fto do-trust
+ _$ y6 A4 n/ U# \, P1 aset trust-ok False
/ ~6 {4 W: G# H5 n Z |3 |5 _7 J3 ^" ?! ]+ c: H( m
, n0 ~# Z* K$ Vlet max-trade-times 0" [) J) ]) v2 C1 \
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
; D9 \! u+ K* Klet max-trade-money 0
3 ~/ v: q; W8 ^, J& Z& I% \foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
4 q; }) f; V, e& Jlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))& L# ~' o( p0 F
w( _! h. ~7 H1 ?+ Q7 V# J
, @& F* v5 d! M- H+ ~9 }* }' p5 Dget-global-proportion
) p \# @! d/ P& G+ q0 clet trust-value
4 k, m1 f% y9 V6 Y r$ p4 u! l+ T6 ^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)
8 x1 ~% X$ n* I) xif(trust-value > trade-trust-value)3 g6 U+ Y1 P8 w7 l) @$ z; p M. p
[set trust-ok true]
: H+ K; Z2 e+ `' x5 w" {# j' eend
, G3 J$ d/ P" M( J, z7 i- N% }. y- k" p3 o# `! u2 X
to get-global-proportion! U5 N/ Q% N* p. ]/ G* f+ `( J
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), M7 {* f# n9 e) Y- F x ?& |
[set global-proportion 0]
6 ^6 b$ _% v: k, D[let i 0
! q Q$ E# b2 k8 S7 Olet sum-money 0
' l( h5 J* ^5 C g% J% uwhile[ i < people]
7 L' ^* g, s! l7 k4 U[0 r* F& o! B( I2 }
if( length (item i6 u' u" k0 f9 x) Z! b8 j; j1 _2 {0 a
[trade-record-all] of customer) > 3 )
, a$ R% `+ H0 P6 r8 m- @3 ^[
( u( s/ u, ~, T7 r2 f5 J I- mset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
N7 b7 Z( t0 @# u2 \, N]
# E( T, k, K' s; I/ J0 H]% t" z1 y0 W: R/ o& Z' N- P
let j 0$ ]4 h) S/ b+ y7 A2 H
let note 0
6 j8 r! `& ], A# Q6 C, [while[ j < people] \+ I4 E- x) a+ R7 h$ @
[
2 Y& Q4 \( W$ }1 `! eif( length (item i
+ ]8 s3 v; A; d0 B[trade-record-all] of customer) > 3 ); \2 T9 D0 w! q1 ^& V6 e
[& t) |( r( ?# m) B1 S
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
/ U4 p" b( M" [$ ?0 _; v0 o+ ][set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 i' N, s, _7 v) H! r& }4 [[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]6 L( d" ?2 ~/ U# W
]' k* Q) H& z, Y
]
$ R6 V* s. T, pset global-proportion note
3 @4 ~9 J7 W- P d0 A; x U0 k]- }4 G: s9 w" q v: S- U! d
end
2 S5 v4 ]4 g1 |, e, p7 L Q }$ d' [- ~; p" t1 X
to do-trade
2 j A% A6 i; y6 ~9 i;;这个过程实际上是给双方作出评价的过程
% M, e6 a! t/ E4 N1 r0 t1 N2 aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
& U! M: Z' A" k8 ~1 G! E- [" |set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
) C0 {1 T+ ^ F, q% l! ?set trade-record-current lput(timer) trade-record-current) Z- Y* c( ]' w/ Z/ _# \
;;评价时间
/ f" q7 I7 k. Task myself [2 |2 } s8 @& x1 N( A
update-local-reputation# D" e/ w: v" U$ ` J
set trade-record-current lput([local-reputation] of myself) trade-record-current( g9 j' U3 q2 V7 Y+ r) g+ f! t" e
]8 i6 T6 Z Y3 B/ F* |8 P
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
; I' g! M% O6 H;;将此次交易的记录加入到trade-record-one中0 R! Y- Y/ ]' ^: s
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 x, _8 p) _, Dlet note (item 2 trade-record-current )
, z& ^3 d1 L$ k0 ^6 k& k. P: |set trade-record-current+ E0 G& n: C( V0 J2 H4 x
(replace-item 2 trade-record-current (item 3 trade-record-current))2 ~" y+ d/ H9 d# m
set trade-record-current+ Y2 r' ^ D& c/ d
(replace-item 3 trade-record-current note)
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ask customer [: [; @& j {- T- f6 a$ W
update-local-reputation Q' `4 I: ^" X# Y5 @8 ~
set trade-record-current0 o( ? m8 [4 B! p2 R% W6 B6 x$ H* j
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) : Z: H' j. v7 z, |2 H
]
$ V1 d, B5 r& s1 _5 S2 S0 `3 @( d: A" P+ n+ M
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 o+ f$ D1 V" Y
7 X, c9 R# ?7 ~% w* `
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& B9 u# d% ~! g$ q;;将此次交易的记录加入到customer的trade-record-all中/ ]+ B1 [% d; q) B" I' u' @: Z1 `
end, @ A0 v! \7 P/ q7 } Z( A
" s5 o, P& C( y5 Sto update-local-reputation& s! v% Z6 w! T8 P
set [trade-record-one-len] of myself length [trade-record-one] of myself' T" w; S* n& i0 B( l/ @
% t" n, Q* X. L( y& W" ]
+ j- I$ _' U0 d! _5 [
;;if [trade-record-one-len] of myself > 3
5 P$ M2 y9 V# U! d" b1 N) |update-neighbor-total9 e# b) J# g7 g0 `4 ` b
;;更新邻居节点的数目,在此进行6 c8 @2 b; c+ u
let i 3
$ ^* i% c* J1 J$ ?let sum-time 0
% Z! B/ x3 C/ F9 |/ _while[i < [trade-record-one-len] of myself]
4 d3 t1 P4 x! b$ Z r. E! L[
+ t. L3 r* E# [set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )1 A7 {1 w5 ~- L( X1 A q
set i/ G/ U% o M& s
( i + 1)" s+ ?- _0 o& i( U# x
]" w% C, P- E: h2 d# S: Y
let j 3% P7 ]% I0 g* s) T: U
let sum-money 0
" }, W' H& g4 J' g$ y. E7 R7 qwhile[j < [trade-record-one-len] of myself]; o3 |+ w# Q6 \
[
2 j* b5 t4 a3 H" W$ M' d+ Sset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
9 D E% T1 [: ^1 u tset j
; C! V# {4 f# W% {: r( j + 1)( f0 L) a4 {4 z, y! I" e( O
]
' e1 @8 H8 x$ v7 K3 Xlet k 36 |' `0 u$ o2 \" {
let power 0' A3 \1 s5 H* \& P! k5 M& D
let local 0
/ F1 M/ _3 v9 u+ Swhile [k <[trade-record-one-len] of myself]+ L1 s9 r+ T( ]9 {
[
. |- X. u7 E4 L0 c) G! i1 qset 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) , W. s# R9 g4 b+ ^: h2 D4 F P/ R1 Y$ s
set k (k + 1)7 J/ |- E6 A: }. I. j
]
- N; p ]5 y8 G3 pset [local-reputation] of myself (local)2 `. h- A. Y' \3 z; F
end p( _+ i, }1 e, F, M; E2 C, j n, S
! w3 u h$ J0 ?% r/ y1 Sto update-neighbor-total+ |; Z# \3 t, v5 x* b3 |' Y- Q
' M& e. ~) `# N- x* q
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
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( r9 q) T' _, m. W) Eto update-credibility-ijl " M* g+ _1 Y7 F/ q% P0 B
b5 d! N" \' l6 g7 C- a$ M# X
;;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。6 N% W& l% N, y. U
let l 0& q4 P6 r7 }+ s' Z+ r
while[ l < people ]
4 e& U0 L. ?, Q5 _1 [* G;;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7 `: x9 f7 ^! p9 U, ~) b& Q0 L1 j% f
[0 C+ U7 q1 R' P" @& s
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
# s: i# U4 p8 }8 J! Oif (trade-record-one-j-l-len > 3)
+ Q; E1 ?! z; r, ~[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* a) a" G. R( Y7 c
let i 3) { z# \' V8 `" S
let sum-time 00 d# ^" Y+ I6 r: d
while[i < trade-record-one-len]
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7 H4 {( B- k+ @. I9 k% hset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 J$ U( R3 V. [9 [& O& q- ~4 F
set i" p8 N" Z& P f, c+ j
( i + 1)8 |0 x* `- T1 ]% l
]! q5 [2 i S2 q) o4 a3 G2 p
let credibility-i-j-l 0' \, H: g7 v1 y" P8 w& G! @$ G
;;i评价(j对jl的评价)
3 H" j) [6 G4 ` Q. A# olet j 3' H! w& v( n( ]4 d
let k 43 t/ g& ^6 x/ M
while[j < trade-record-one-len]& o; {, v" n5 W( w; E
[
% O" T( v$ K$ y \5 dwhile [((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) f' W" v# K. }. n
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)7 r+ \1 z" D4 s T
set j* s& e3 U7 ^; [! i$ v% B9 G
( j + 1)
8 m9 D/ n U+ |8 f]
- _* l) S) T0 c. r6 {. l8 `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 ))
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! v) G7 z' A4 t5 M% e& W Zlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ \+ Y0 R. B' v( e3 H2 Q;;及时更新i对l的评价质量的评价+ q1 V* M, J! B* @& M: I6 j
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]7 z- N2 ?$ T) k a
set l (l + 1)
; i) T8 Z% Y, U! A, r], h' {3 a. }) ~6 h
end
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to update-credibility-list
+ c3 }3 ]# x, ^$ Tlet i 0& ?- V% l! \' c2 p" X
while[i < people]
6 O' m6 b. v; w7 l( v& C[1 v1 E( F( l# s! M% X/ O7 b
let j 0
( d5 D2 n. Q& s ]6 H$ K3 j' Llet note 0+ ? M' y9 r* `1 B
let k 05 S3 N# Z9 K/ I; l9 ~9 b
;;计作出过评价的邻居节点的数目
@# D1 O$ s8 c9 F' f2 awhile[j < people]
/ a- b3 U% D7 l* Z( F1 H, h9 ?[" L! D- o8 ~' g% s' x) I/ e. u
if (item j( [credibility] of turtle (i + 1)) != -1)
: [2 l i6 B4 i8 P" X1 x;;判断是否给本turtle的评价质量做出过评价的节点, G( Q& D- @( y% b. b
[set note (note + item j ([credibility]of turtle (i + 1)))
# |1 h7 H/ R0 w8 a2 H4 i* a;;*(exp (-(people - 2)))/(people - 2))]9 a( P% j) \& e2 `& u2 R
set k (k + 1)3 L; r; F* _4 Z2 B, c7 ?: C
] G/ N; I9 f/ O- A2 C9 O2 i
set j (j + 1)
$ H8 a; [8 h# |]& ?) I# I& _0 s2 Q: Z* L
set note (note *(exp (- (1 / k)))/ k)$ ]2 f- ~$ g/ E+ D* h
set credibility-list (replace-item i credibility-list note)
; }# u* ~2 g5 wset i (i + 1)
. M/ k9 h& S& x, t]2 \5 [5 J1 h, [
end, W+ @& m, F& L$ O7 R! e3 S
+ |! }2 |/ o; c$ Gto update-global-reputation-list
; t+ j. T; [; w6 @% {let j 0
, w- D% N$ t2 ]$ P3 ]6 Hwhile[j < people]. H5 x1 q. b& M; A g: c
[
5 w" J6 h0 T( m) G! m3 d3 ?let new 03 F- Q c2 A) m: a( v
;;暂存新的一个全局声誉
|1 Z/ B' C. D! _5 L: m6 B b8 Qlet i 0& S) M) N& V% y( m
let sum-money 0
' |& W5 X" a2 zlet credibility-money 0+ Z. U' `) o8 G) r( |
while [i < people]
+ |1 K7 w/ |+ Z- f4 @8 G; o8 n5 S[; `0 x% j5 q. |3 w7 N: C
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))+ A' r0 E! H% o2 d( Y
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 {- @* N6 B: P2 ^set i (i + 1)
& y. Y g0 `; C]' F" p$ h) l1 V3 y* O
let k 09 _% w. a+ G* ^8 R: r7 Q' G
let new1 0
5 i" Y, g5 H. h: L8 Wwhile [k < people]: Z7 A; ^# _5 D- o- S: D
[
; l2 m$ F7 N7 D! 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)
# v3 h# m/ M6 { k& bset k (k + 1)
) ^5 F& p. s! X- \' []' Q* n1 l/ x: E' P
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
& r# e! f! O8 s! l" r) M D- B5 `set global-reputation-list (replace-item j global-reputation-list new)6 S+ \, w( o7 k% z) n( `
set j (j + 1)
* }: k+ v' y0 O$ v L/ {# Q+ I' ]]) [: X8 N/ A' P0 _* C
end
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) W/ X# \- q; V& D) E6 M. q% e
6 w1 g: x( |, ]' ^/ a( I( G8 N
/ O- n" M# p/ _to get-color
/ I6 U/ f- f. i, _
0 M& h! C3 A% H( uset color blue
: o I% P E4 yend) U9 T- B4 a( h5 k R, F) t f9 \
" y, d4 X% H, D/ o H, d; x2 I5 s
to poll-class
m" e6 C% A7 @5 H0 d5 H$ f0 ~end
$ x" a$ [3 p! z4 s
9 u9 w/ g& d3 w' D" F; Pto setup-plot1/ t8 R1 F7 Z, ]
1 m$ U4 s9 E/ o5 |# C# jset-current-plot "Trends-of-Local-reputation"4 G a/ T' [4 D8 e' j5 n/ a
& o% u- n4 ?# j" Y
set-plot-x-range 0 xmax
; H4 P! @6 p4 Y3 m' b8 B, L9 J! `
~2 |* G( U1 bset-plot-y-range 0.0 ymax
$ _$ a# y$ P x/ ?5 L4 @end V6 i: y/ f, ^1 J/ N T* {, X
3 u& O" W* o! s7 g/ l( _1 h4 |
to setup-plot2
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! \0 y8 r1 j( hset-current-plot "Trends-of-global-reputation"0 E# [1 H p( G" h9 S
% p/ F7 {3 w4 q7 K. Aset-plot-x-range 0 xmax* G, v+ m2 p2 Z) k f; }
4 x- P- q# v* d3 d' uset-plot-y-range 0.0 ymax [# v1 I' w* i, h( M2 M
end
+ W$ Y! D9 _: }2 c4 R S! K
1 L" D0 x; D( I8 y# ?: j% u, Wto setup-plot3
+ o5 k( E. O0 l+ L+ `2 `* `& i3 N7 `+ f7 ], c6 {
set-current-plot "Trends-of-credibility"
: n7 j) w& v2 a5 f# {7 ]
. u+ g) [) u- x0 q. f8 `- Pset-plot-x-range 0 xmax( V9 b, Z' P* B4 u& n
/ U M1 u7 H" g( D- L6 V# [7 U
set-plot-y-range 0.0 ymax
' F" b; ]. }, A% q+ I% Rend0 N1 T+ F0 [8 {: t( u7 O
$ V$ v* Z# `" c8 r# d7 lto do-plots" x: ?; |* Q' I7 c
set-current-plot "Trends-of-Local-reputation"
# I0 l+ E5 R, Z Dset-current-plot-pen "Honest service"# F/ h9 H. O* B( n+ f( P" @
end5 P: L" n5 D, h' H9 V+ R" S1 Y
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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