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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( T m( k6 \5 W; d* Z
globals[# P e1 I$ T3 n, U
xmax
# Y4 T: W6 i/ B& xymax6 }! a0 t7 P' K8 p
global-reputation-list/ T' a: a/ ]8 o, M1 L8 [
Y! h5 ?) W6 |' B$ t6 s;;每一个turtle的全局声誉都存在此LIST中# x+ v* @: K4 U, j3 ^# Z
credibility-list/ U4 a. Z8 D3 _
;;每一个turtle的评价可信度
8 G2 |" [" e/ f: Ihonest-service
7 T$ ?( W. g5 u+ punhonest-service$ G0 f( |8 r, X) R8 L6 m) F
oscillation9 n2 F( z6 @6 e" v( O! I" Q$ w
rand-dynamic
/ Z3 D9 U; `' O- s/ P1 Y]3 \1 q, M6 b$ K, v) \6 R
+ ?# N! T* e6 \+ a
turtles-own[$ f1 ?! X @; D
trade-record-all
7 s" w& J9 n) x, l/ a: P* j;;a list of lists,由trade-record-one组成
; }) Q4 g4 o" q* C7 L3 Strade-record-one" @5 W1 W; ^1 |- ^5 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% k+ @1 O H. v6 k( i9 J( K+ B
7 `/ k8 w) g6 z( i( G;;[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]]' m8 J1 J% D8 P0 t; V
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]
& L3 H+ W; R: B0 v. W( g0 Jcredibility-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# R# x, b* R* _" b# c
neighbor-total
8 Z: q4 C1 s( |+ U% m$ P9 E3 j9 d;;记录该turtle的邻居节点的数目
! `$ _" S3 o" B- Itrade-time
) U0 O/ F) d7 c;;当前发生交易的turtle的交易时间
3 n$ i0 |- K% C0 ^; M1 ]( mappraise-give) _' H: s1 I7 N& b0 M
;;当前发生交易时给出的评价' c+ M1 h4 ?3 a4 h
appraise-receive; Q" [ i) j4 q; L- A' S! ]- N
;;当前发生交易时收到的评价& [9 [8 S) H. D
appraise-time
1 ?! a m/ J* H ]( f;;当前发生交易时的评价时间5 X+ G8 m9 E! u. L1 d8 B: B8 D: E* j
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
* ]. T* I# H2 h+ k) O- w( W! Ztrade-times-total
) w( Q& ^$ b# x2 W* |1 n f;;与当前turtle的交易总次数4 X. a7 J& X( Z3 o. |
trade-money-total
9 K3 W4 i* y6 }* H3 P;;与当前turtle的交易总金额
" v! g' U$ a ?$ z" h; H+ A, Clocal-reputation* ^* w! G, e( H7 Z4 J' [$ g
global-reputation# S9 `' B' U/ E% e+ F' m
credibility' x" J( f4 E8 E/ \/ x( I& n
;;评价可信度,每次交易后都需要更新
+ | ]/ T& }- Kcredibility-all
$ Q& H/ u6 |; O; ]. \ ?;;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
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1 h4 M* I2 R5 I9 K2 S! A;;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
6 X0 ]3 X0 C. k, R8 B% C7 M2 acredibility-one
$ C; P& j; o8 o' g" P' a/ z;;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 E7 W, b/ e8 Y% |' m. M0 L8 rglobal-proportion
7 ~- @, B3 [. e& D" ^& k* qcustomer7 D/ Y- \: l8 F
customer-no; l7 |% p( i0 ^; ^
trust-ok
% j& H+ |( h8 A4 a! l, htrade-record-one-len;;trade-record-one的长度' t4 U" b& s# `: l, G( o2 ?
]( W$ Q+ ]8 s, Z! R! O9 M& h
g. U4 c6 `) M- c, f9 ?; I- g
;;setup procedure
c7 l$ H4 X" C' [& [
/ K% D! M6 ~2 m0 R( {to setup: Y7 ` O1 F" d% k% M0 l+ R: g) T3 P
" o% g# G6 O5 pca
0 c/ k6 _& S2 `# |7 @$ ]
2 B: i& e: i" t2 x7 O* W2 J5 einitialize-settings
: e1 A9 n; p8 [2 m" S- i" g
3 \9 y% m& ?/ H4 F0 e! [crt people [setup-turtles]; Q& {) y* O# t {3 q
) A) o6 r" y6 y( x/ I) p- @9 sreset-timer
, m2 D9 f( [$ a2 S7 I4 s! m$ k: ~: r5 j9 m' E6 `# M
poll-class
# R2 A" X- M" h( I5 ~- o7 r9 y6 [4 A, _6 B
setup-plots
' Z/ A# M) [) x c y9 ?; g) F( }+ u7 f; N8 Z) h3 n3 E
do-plots
4 {0 C0 m0 ?: _& q! r. p! dend
1 \/ G7 G6 y& U: M" k: k: ]% a$ B' |# m, L& {; _
to initialize-settings: k0 e1 P' R- E; h9 X
, O' z+ t! w# t; [0 h
set global-reputation-list []
/ K1 m4 X6 t' l+ z! [
( z0 b7 A1 H9 t$ d. @set credibility-list n-values people [0.5] s4 Q9 i w8 P7 e' G
0 Z3 J6 u/ h, v( z1 Wset honest-service 0
5 J( [0 D+ y2 d% o6 r
5 t9 [% p# _5 Kset unhonest-service 0
6 t3 o4 x1 n, G
5 O, Z* |, G4 o u' ^( r- y4 aset oscillation 0 P8 R( e7 @, T& y2 W; d
( N1 x' @$ n+ m0 @& p+ v; G
set rand-dynamic 04 O1 n; z; u& A; u2 p: h
end* t1 g% J: E9 O' ?; b
) Y/ q# A7 H7 Y+ k2 z }8 b
to setup-turtles 0 c" _0 Z& g: T1 X5 G1 h' r
set shape "person"
3 W( K: r6 w, ]; c3 p" k5 t0 b# qsetxy random-xcor random-ycor
( w" L$ j7 u iset trade-record-one []0 i! s5 b+ w+ v$ x& E0 J
2 F" T$ y4 A4 e$ p' a3 b: U
set trade-record-all n-values people [(list (? + 1) 0 0)] ) G& }; L7 ^9 A5 F# H+ f1 L
3 |# V6 w% U* Z* R
set trade-record-current []
% r9 G5 g3 W: w$ h" S! Z2 Oset credibility-receive []) {) N& J& G5 }' g
set local-reputation 0.54 _% r- I5 n; p$ `8 X. A c7 B' K
set neighbor-total 0
5 G+ S- t& Z! b: vset trade-times-total 0
9 B5 r/ S: @7 Sset trade-money-total 0# A& T, ^+ @2 p5 B3 n/ d
set customer nobody* x. o5 [. s- b T/ l4 `3 o$ x
set credibility-all n-values people [creat-credibility]
& P* j& a) E( ~! Z2 _. yset credibility n-values people [-1]6 u/ b1 x. J: I' G; Z% R8 W
get-color
% p7 S. a3 {1 x* S# g( S% R& Z5 X% ?
end
: [" n& D. r U# V) M8 m7 t% P$ d$ w
to-report creat-credibility; p" r1 z7 }3 b
report n-values people [0.5]
" o+ X- x5 `! T) N9 Send
( T0 J4 {, q3 L3 p& ~
% ]) K i) Q: g' j5 i# C! w4 Ato setup-plots
# q3 i; p' [( y# B) N2 T
8 T' J1 N4 `; C& w6 X0 b2 zset xmax 30; f' v- l7 W4 B. w
9 V& u' I: W) b( Q
set ymax 1.0
% h$ f) S% p: I. y% n/ k- ?# G$ j) H
clear-all-plots
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setup-plot1
7 V' a1 t- Z5 j4 I- i& i- Z* d0 ]# q- t. ?, q; p1 R: h% H0 u' i
setup-plot23 X* B# G: g* k8 {
5 G7 A9 D ~+ t, J
setup-plot38 ~ J, K8 S: P) F5 ?
end
5 P9 _0 K/ s' f; m5 U+ v. l6 P4 a3 E, F" q( G4 e9 T; s' n4 I
;;run time procedures
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to go
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ask turtles [do-business]
' v! s2 E+ U1 k' Eend
6 [5 }( @6 X- e- n7 b
; T8 u S! ~0 Q9 u+ Pto do-business 6 Z# |3 Z5 y8 S A
# g2 `: Q6 [; C# g
8 K5 ~7 x6 S* {rt random 360
* C* p y. e. Z7 w& w2 x8 R1 t1 t) l+ ?$ T5 J$ d. w" i
fd 1
4 b# f/ P2 l Y
1 z) m# a3 k; q' m eifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here9 v5 ?( Z5 J1 C$ h
. Q6 e6 G3 ?* A# \;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)9 \1 s% n! `; u X8 J! M6 @ O6 y
[trade-record-all]of self
: s- r4 N/ P% I1 [;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
) [: j3 m/ X3 B. d& l6 o0 f- W7 l2 Z7 Q& ]5 O5 j' a) L6 H
set [trade-record-one] of customer item (([who] of self) - 1)
( e; w. o- v# \. g7 z+ x( ^$ }# U[trade-record-all]of customer+ e+ H& j3 H2 U7 r
0 y; m2 A! ?2 k# X
set [trade-record-one-len] of self length [trade-record-one] of self
* t2 X% R5 ]) ~/ e8 N1 q% p5 a5 q7 e- J7 A. z7 I/ B
set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]1 k, D# _ e$ t/ n
;;先求i对j的信任度
2 k8 D: N, K/ v, @8 Q
( h0 [) b! r C8 O: h! K oif ([trust-ok] of self)
# @9 Y* j9 E: K( D$ V;;根据i对j的信任度来决定是否与j进行交易[
; n- K3 Y: V, o, w) ]$ Iask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 |" s' O/ M8 u+ e4 C( C% A
e' Z0 L' G) v# q$ _' a. P, |
[/ x* ]+ S' ~$ [0 t* b6 u* L
" d9 p- c3 Q. E, r X4 o5 @$ ?do-trade8 t5 m* _9 d/ O) w' n
; d$ ^( q- Z' g4 `4 V Mupdate-credibility-ijl
* v7 l2 V4 I2 S% B! R% {
2 |3 m, l8 U9 a, n" [- M' U5 E( eupdate-credibility-list& ?+ x0 X& c1 ?' @
4 U# A3 H4 P+ O8 N6 h2 B/ K9 ?- v$ k8 P% N- L* ^
update-global-reputation-list
, Q8 b* J1 A6 g* a) x2 x5 P' o5 @, ^2 D7 H6 U9 G0 K
poll-class- `! o; L1 |8 u! c+ b- K& q$ M
" ?% ?- n6 I. x8 T8 {
get-color. K/ z' D' |1 E: c
. ^* [$ S& h( W+ r' O' R
]]% T* _: p" W G7 G6 A# s
( r7 \3 {4 j; ~6 U6 S8 A
;;如果所得的信任度满足条件,则进行交易
! s2 b3 T; o8 D5 g
4 H" ?6 J- y" c* D p7 C( P( A[
; \" A, x1 h; k+ W6 e. G. M0 s; |0 ]0 ?2 a; V$ I$ }
rt random 360- K* l; ?; l4 `. U. P* k
0 u- h3 t5 @% D' G- |- q6 i0 v! Xfd 15 J7 G$ {+ _" s9 E" G# g
% s; R# I7 F" {5 S( r]
- `5 p, k9 A' ^! R' n4 p: v. q$ m2 c Y& ?1 J; b) m- i: G
end
$ p6 B2 m) S3 j# z" l1 S. \5 Z, V5 g; \, {- {9 ?$ S3 f
to do-trust
- m' V- O4 R9 g/ W. g( Bset trust-ok False3 y1 N/ x, T; q6 L* e3 H& `7 o; N
/ ]# x1 B8 f* k/ {! V
! H+ U0 L- ?& Z& p1 f
let max-trade-times 0
) ]4 h7 U* [7 {7 Z' L$ _foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
' j, q( o' p* M$ olet max-trade-money 0
1 O, E2 G) }3 J3 R: N& Rforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
0 g6 l8 M7 ^$ ^1 M" J' Y. dlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
! [3 X% W0 h2 |( a; N7 r6 m
8 E# b7 y4 C0 s# p9 a3 E
6 {$ P. i. A6 v" B# Z" Zget-global-proportion1 b3 Z1 x9 P- z# l3 O. l+ E
let trust-value4 s! W7 ~/ v2 `- j/ a. D+ I' Y
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)
$ ?0 a( N6 L( `! E9 [if(trust-value > trade-trust-value)9 h5 D* S& \4 n2 r# Z# X# D
[set trust-ok true]
; @: f) v( E- ]) ]2 cend' I; M8 A, s8 j3 ^- n5 k3 J0 Z
! P, _* o. o: ^4 J
to get-global-proportion
1 h7 U3 i, i3 C2 Uifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)# a: W/ ]) P6 x
[set global-proportion 0]+ e! b6 u- z2 o" Z& v; a7 O
[let i 01 q; T- ]5 N( U! @( @" `3 Z
let sum-money 0
9 C, E9 C! p' s) G) Owhile[ i < people]5 m% V3 u4 W3 W8 P! A
[; ~5 J' B! V. ?( z2 f
if( length (item i
! @ w& T/ N0 i3 p" j! B[trade-record-all] of customer) > 3 ). E9 x) q, z8 y5 Q# t! Z! X
[+ r* `7 i+ j" Y; w% q
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))* V7 U2 ]0 N5 p( F1 o$ ?
]
8 }; w1 d9 _' O8 f]
/ ?1 k$ Q+ J7 R; v9 d6 vlet j 0
9 K8 v0 n% Z0 ^+ w7 ~0 Blet note 0( o, _% a& b4 [& L2 I
while[ j < people]
5 c3 B7 W: O7 o7 G% @: T[. b: `; F. A; c% Y# ]- ~ s8 e
if( length (item i# v' t+ b* \* ^# J
[trade-record-all] of customer) > 3 )
' I4 l0 C5 C9 h7 z[$ s6 G5 p6 _3 f! p
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
( k- D, t2 B4 D[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]) ]1 E$ B" Y5 _4 @
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
; U0 a7 h1 R0 |" y* a& ?: h]
8 m/ L$ g) h( I1 }7 N# W5 W]% ?. ~4 u% ~, n$ @3 e7 b( g" H# n
set global-proportion note
' g& I: v9 x4 X5 Q]
6 }1 e2 X4 N2 H/ L$ y& h zend. s3 g# r4 E* L) s, A+ u! U: ]4 o/ e
6 e' ?: U* H, n5 D0 @to do-trade
+ e) s# L( x7 X! @ P; X;;这个过程实际上是给双方作出评价的过程
1 V4 M/ [% |* m- X; S, S! `set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价: p: z! l: C6 A8 q9 N
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价 o, s# H8 G. c- t# R) h
set trade-record-current lput(timer) trade-record-current
# u' K( M, X, T* {8 C& c;;评价时间( Z1 P6 n+ Y: g/ K- q
ask myself [
8 m- h* u9 {1 I+ V2 k! e9 A1 t+ ]update-local-reputation% ?( |, y) r/ r. {) F; `/ S
set trade-record-current lput([local-reputation] of myself) trade-record-current
; F5 u* D* z! u5 N4 e9 V]" l# z j D! H3 C0 ^1 }
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself2 c, g9 e; n/ N+ B9 P# z* `
;;将此次交易的记录加入到trade-record-one中
5 o" B9 ^7 G2 X5 n, wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
8 @2 N- l) d( A. S |let note (item 2 trade-record-current )
: E7 c* z$ s3 T+ `set trade-record-current- m, U, N8 C2 H: y
(replace-item 2 trade-record-current (item 3 trade-record-current))
( h, U( a8 p m4 aset trade-record-current7 x' M+ O/ n; A1 o% g
(replace-item 3 trade-record-current note)
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7 l6 }# z. U6 W c% E# L. k5 o
ask customer [% N/ T/ g& [& T* \, G/ f) Y) k
update-local-reputation* l {" @0 d2 k4 y- ]& P$ l3 J
set trade-record-current
6 J5 F* _- A7 t& R! C8 v(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ' K: ?3 {( h6 h% y& P
]
4 Q" i* }+ {4 R6 W9 i- j
2 b2 S' ]7 V, N. |2 s! W: F
( w8 u- t% d# Vset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
' N' K* p* f( T5 @% e
; P. j7 ^$ K; W' B& rset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 [9 Q" @' T7 w7 @;;将此次交易的记录加入到customer的trade-record-all中* y& f$ s& R$ Q" N
end5 \3 A4 m9 X; K! u. x4 D. E
( q) y3 C$ ~# i6 A! V6 r
to update-local-reputation
+ P5 y; K7 I$ t' O" rset [trade-record-one-len] of myself length [trade-record-one] of myself/ S$ e% W: t [3 r$ i& O; f1 c
% E7 p1 E0 a- c
: ?; K( k: p3 C;;if [trade-record-one-len] of myself > 3
- S0 E4 s/ F+ L7 @5 Cupdate-neighbor-total/ `% W0 q1 a! y, o4 g" W
;;更新邻居节点的数目,在此进行( y9 G+ S, R0 W' f' f0 N; ?
let i 37 @$ T- ^; [1 g K
let sum-time 01 p# p) W4 T0 a6 W) I& w
while[i < [trade-record-one-len] of myself]6 a4 o* }; a% J
[
) }* z; V1 r% ?9 c1 e1 aset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )# c# u1 g4 E5 h- U
set i
# v9 Q) H* n: F8 T3 C0 `% I( i + 1)3 }6 O1 n. u; F: }+ b6 R
]$ S1 ~( z& g1 ]5 C! X/ }: J$ |0 i
let j 3
- t2 S r% k3 D" F ~: I4 slet sum-money 0
3 V3 ` d$ Y3 R0 uwhile[j < [trade-record-one-len] of myself]# K6 z/ I! R( o% h1 Q6 p: Z4 R
[( W) H; `( ], q" B$ G& J `
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)+ u, {) \' w r! ]
set j
+ J' ~7 C; O; K D+ m$ C0 _( j + 1)
7 w. Y2 |% u+ `% U) W5 @6 k]9 a" t. c! P/ E0 {6 e- x
let k 3% `( T. d/ h' J4 Q3 f
let power 0
/ b/ m$ O( y! O E" T8 e) ^1 jlet local 0
7 W& k0 I- N1 r. X [# V7 Iwhile [k <[trade-record-one-len] of myself]
- B7 y) `4 c2 f: y6 t4 s$ H[
: K( W8 S+ L# c& }; O \$ m) fset 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 D- i- x1 A/ K p
set k (k + 1)0 T- \8 J4 C! P: K' d
]) T; t% L3 z8 l( t
set [local-reputation] of myself (local)
3 \* w8 s5 l: I S, i1 Uend
3 y* [) K; M3 f- Y8 d, n5 Z7 T$ B1 A1 M, J; \3 H
to update-neighbor-total
2 M' j4 x5 m' z# u' |# g( ?, R6 E* \* L
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]9 S3 U9 y1 f/ Z
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* ^! z q' W+ [3 y$ f" Z2 [0 rend; f4 d( u, I! J4 K. G1 o( {$ q6 }
: L$ h2 q5 \. v" E9 ~% e2 o
to update-credibility-ijl
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;;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。: L( U$ b1 m0 q- g
let l 08 b0 b4 L6 p0 i+ c o0 ]+ V* A
while[ l < people ]
+ y9 V/ _0 q. O, 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)4 g" L$ q C7 [4 \
if (trade-record-one-j-l-len > 3)2 R0 `& n! y3 c: W2 h3 S$ y+ s: O
[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-one7 h' L& |; I& p! r5 `3 j
let i 3' d, r; V' x% Y% A2 w
let sum-time 0. {! i X% O( v2 j; O3 S
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )) M( f: I9 a ~2 G6 |0 S. F. `4 v9 H
set i
- q! \* s* B* x* W+ O( i + 1)
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$ c# L9 H$ ^# ]) x- Klet credibility-i-j-l 0# C3 D( F; A& _5 b2 l
;;i评价(j对jl的评价)5 H" D9 h: p n6 X* O) N' C# B# _- f
let j 32 F' ^/ p, U, L( T* O3 |, J
let k 4
( H" C: s2 ~8 E/ H$ |% ?while[j < trade-record-one-len]
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, p3 C' \: p$ ^; x- ewhile [((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
* l) D+ y. Q# b/ _1 P7 Gset 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 N& J% v- {2 b1 ]+ Z
set j3 v2 [- E! W1 N9 H% R" I3 |" s
( j + 1)3 u" ^$ p' z2 q; D. o
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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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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) I p# g! p6 ^! h6 p0 C;;及时更新i对l的评价质量的评价
5 n# C. ~5 O; Y3 Q' W( _8 k1 Oset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 l5 i9 P- A1 F
set l (l + 1)
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+ H9 m+ n, y& A3 F D9 p" _& Qend! F7 \ f& j% P! Z
2 V8 F) n7 \$ gto update-credibility-list
6 g5 ` Q0 R. e0 h' Klet i 06 f7 I: D @& ^0 E# G6 [: V8 U' _
while[i < people]
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let j 0; [+ _4 g, Z$ s6 c
let note 0' A. \: ]1 h/ | W b6 A
let k 0
' K7 p4 v- ~4 v* o;;计作出过评价的邻居节点的数目! P* h9 c: I9 e, K& i
while[j < people]
5 }, h8 c% p8 z" I2 B6 S[
. \$ r8 n+ Z5 F( J/ e" Rif (item j( [credibility] of turtle (i + 1)) != -1)$ V1 y+ V0 M1 N( t
;;判断是否给本turtle的评价质量做出过评价的节点
+ n) a& ]4 J, a6 J# y) M/ N[set note (note + item j ([credibility]of turtle (i + 1)))
: c! Z7 x3 e' l V6 F6 s;;*(exp (-(people - 2)))/(people - 2))]
' \# `: C0 f. P+ _3 @' _ ?set k (k + 1) W7 J }* j5 p& s7 T9 h3 r9 f8 p: p
]
& ]. r2 {6 y2 f5 a+ p3 [set j (j + 1)
+ R( c X+ }7 }# C$ ^1 m" i]1 I6 c+ {# z% O# i U" _/ R
set note (note *(exp (- (1 / k)))/ k)7 b8 y& \$ v; l) z. H8 G
set credibility-list (replace-item i credibility-list note): H+ G, k! q; X
set i (i + 1)
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end# m, p; a2 `% l, z$ Z. o, B; v
& S& [+ X9 A3 U) H: m$ r* K3 `to update-global-reputation-list. f+ r/ c0 C* U' p! l9 x4 z
let j 0/ m0 l6 M( ]& [3 g- K! K1 Z; j" v
while[j < people]
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let new 0- m: i/ T2 @5 l
;;暂存新的一个全局声誉
3 F5 c! J+ g1 a& u. c( e0 J/ Q6 J0 Slet i 09 W- u3 Q+ M$ q/ @$ N
let sum-money 0: Q+ x$ V/ d- r' h C, w
let credibility-money 0
9 L0 k* U: y- N/ Z( Uwhile [i < people]
2 u7 I0 D4 m9 n- ?9 g6 k[
% H# P6 G2 M0 \2 k; Sset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
0 W9 M/ W% _2 J9 [% Dset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
/ G* X1 h3 n; e$ m$ z4 Bset i (i + 1)% `1 I) R8 w r8 _4 v) U8 s
]- m1 g" I# E# [) B& e
let k 0( n9 X# M% }5 n: w( w
let new1 01 n5 E" g/ W S( d2 `% z
while [k < people]+ X- r8 W' \. D' n4 M7 o& }2 ^
[0 U- ?2 d. I. D {& Z! N0 W
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)
- w* ^, ?: A7 W1 u) ]5 A9 Uset k (k + 1) |: ]: G8 I# V2 i9 `" C, A
]
5 ~+ q% l, ~6 F3 G! K% @set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
# k/ K! I7 g& h( W0 S8 eset global-reputation-list (replace-item j global-reputation-list new)
+ n0 L4 o' {, G6 iset j (j + 1)5 ]4 e" @! n% T0 m3 L+ |; G
]* L% `3 j3 X3 J' w, e; V9 a1 y5 Z
end
& }5 H$ X. {8 d
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$ u$ L% A4 V6 { l* F S+ C- b9 |3 Lto get-color
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/ m. N$ V7 D4 L. z7 N$ u& jset color blue
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4 A. R0 Z" H1 p" wto poll-class/ g6 z5 ^9 L/ _# E/ z
end
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; }! c1 }+ c/ T) I: d" mto setup-plot1
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set-current-plot "Trends-of-Local-reputation"# {! c W9 \) t( n- i9 T* f& X
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set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax9 f' F3 W0 O8 O" e
end
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to setup-plot2' g9 d( o/ }" c' I8 p
3 V) k8 ]! t$ n, \+ hset-current-plot "Trends-of-global-reputation"
9 I* w( m4 a. ]
- u# _+ q2 Y. V( s$ zset-plot-x-range 0 xmax
- T s# Q2 U& e# R5 e9 x: W
/ c- U; A. _ z" C: Y. F' l! t5 {set-plot-y-range 0.0 ymax
; b; _. ^, d& u2 ?5 w" X( Jend% }# z# h1 G r* b$ i! }
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to setup-plot37 K7 H! d' [' `7 `8 ], s) A, L- [! d
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set-current-plot "Trends-of-credibility"& L" a- W0 G, J0 _
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set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax
- I U: s( R! t. v9 A$ Iend- V- X T' D2 a$ [# f V9 ?% s8 r8 [
4 F. ]# g! v8 Dto do-plots
$ [( z+ o5 a; y1 a Mset-current-plot "Trends-of-Local-reputation"
- h* j2 C y/ t9 fset-current-plot-pen "Honest service"* i [8 r) R: `* u8 ?% {6 @
end0 L8 I% C% G* m
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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