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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& r. J3 F$ ^5 K9 `& A
globals[! S1 g/ l" H l8 ?) r0 \8 C2 j2 G
xmax
3 N* v5 z3 i/ W7 Zymax
3 M! J5 G' V1 tglobal-reputation-list- J. s K4 M9 T9 s) ~5 b
5 {" h, B/ p; N. A;;每一个turtle的全局声誉都存在此LIST中
% u _& ~$ ]. b, k& M' wcredibility-list. |7 z4 H. {1 u
;;每一个turtle的评价可信度
0 a; M' u- T% N" N/ R; e; F# G3 `honest-service3 i7 z7 q* ^7 Y1 J3 \7 K( T
unhonest-service
/ `$ t |3 ^4 }8 t& }oscillation0 H T/ ]! |( T4 h9 h
rand-dynamic
* O! m' n" d8 X]( ^8 L7 F- x1 ` N0 M
; t& |8 L9 I" p5 R
turtles-own[6 o& ` }& y' Z7 ~; P
trade-record-all6 q; \4 ?. ~" `3 b
;;a list of lists,由trade-record-one组成3 R4 m% q |+ x4 U# S1 n1 |! ^4 V
trade-record-one
! Q" h0 m9 @$ E6 s5 c;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录# S' P/ }4 M8 M$ ?
$ _3 C2 z. q! T;;[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]]
/ R6 U/ l# R+ L& Ctrade-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 A& d1 I( e3 E. o1 M( Tcredibility-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
9 H9 B6 R; V j! e- g ]1 `neighbor-total
1 Y" o2 w2 K4 I: P& |;;记录该turtle的邻居节点的数目
2 g3 C2 N- J& m3 W% etrade-time: k8 T# T3 O( }' E
;;当前发生交易的turtle的交易时间9 k1 @4 v. c7 ?" f2 [( i" z
appraise-give, L) t: |. J: j: [" T8 B
;;当前发生交易时给出的评价! {0 V1 O0 S7 T2 N( G, e% F9 m
appraise-receive" h ^/ ?& B5 _+ m
;;当前发生交易时收到的评价5 A& Y C' W/ `) h* H2 \: r; o9 |
appraise-time& p6 {8 l$ f+ {# W" ~" B6 d
;;当前发生交易时的评价时间
' ?9 ?7 \ Y3 v5 M( rlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
* c7 x/ N$ ~2 m9 i3 C3 gtrade-times-total
! b( R) O) K3 h- f$ T;;与当前turtle的交易总次数
' E# G9 U8 W9 T1 H' h, Jtrade-money-total
. W5 V) s, B4 U1 X/ o8 f;;与当前turtle的交易总金额3 B$ J( I+ n# e$ p6 B8 @9 R8 O2 J
local-reputation$ @( W5 y& e2 e
global-reputation/ \1 N4 |, }% w7 b
credibility
$ M( d2 L) V$ y( _* a, Z* `/ t: V* c;;评价可信度,每次交易后都需要更新
- {; K" K" W+ i! `7 q, S7 Qcredibility-all% T$ _, }4 i4 x0 @
;;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 F& ]% o7 _* Q8 i# w/ g- L
0 c/ _- F) t F" J6 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, I) p3 P. f/ @, V& r: N8 q
credibility-one$ J: s* X7 }5 ]2 _, m% `
;;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# _$ t) S) p o5 h+ }6 v. a# D! P
global-proportion
3 H, e3 S6 F1 T% {! o- ]; Q3 Bcustomer
7 [" Q7 X [6 J$ `3 X2 }2 h$ Zcustomer-no2 \+ K& {9 B: o# b) w' `9 F9 q
trust-ok
: r- ~; i+ {6 z0 g' G# w3 \! D( otrade-record-one-len;;trade-record-one的长度
4 R$ [$ s) o6 X]
- I2 x& M- }# i. N( \7 W' w* y
( K: U S9 s2 w0 j& B) {;;setup procedure# f+ g0 E# o5 o# w
p+ b) I+ C' L9 Tto setup
6 ^8 v! ?! B1 m& |
( L: \( L4 n6 f4 P, R& E! C3 Wca+ M6 ]) @, C Z4 ?5 @. j
9 _% W4 K. y- vinitialize-settings* _- I' y! l7 `: \: v) `8 R* ^
4 T6 I$ J- t/ F9 X$ t6 g4 p- ocrt people [setup-turtles]7 ^; _+ _1 Z( W8 R* D1 F) Q1 ?
8 u+ G* z1 ^$ |
reset-timer
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poll-class
W( b* v& F$ x
! S: V G" Z4 H; N$ ~setup-plots8 m% Q3 P; p2 H7 d! [. U
% Z2 F1 t1 f5 T& I% z5 z. h( Fdo-plots0 J& v1 b7 b7 w+ N, Q- Q
end; a# l; ^ I! ~6 m4 |+ L; C
, n1 A: ]( U3 K3 c6 v* \/ Wto initialize-settings- V! a e! H8 c3 \' d% t" D; }
! W% W. k1 R6 ]0 U7 i* tset global-reputation-list []/ T# J. @4 D: s, D/ {6 l4 \
5 F6 c7 u2 X$ H" [1 O9 Aset credibility-list n-values people [0.5]9 O) \4 C* n c2 E+ D
2 J' A6 h. c2 G: U- _8 D7 O3 m; H
set honest-service 0 R; N% v: W( N P1 U" P
2 J8 {" V' X5 p4 G8 {! O
set unhonest-service 0/ Q& l L6 P# H0 R5 e; ^7 M3 v
+ E; L9 @9 p5 [: n1 u% A- Q' F3 `set oscillation 0( f( i$ J/ n& ]/ h
/ Z7 `% ^& L/ J. f* N7 L9 z& i
set rand-dynamic 06 |$ B# @& h, J
end
! f' }2 j7 f, `7 s6 b* I: b
) k% O/ S/ d* L- x+ S( e! ]to setup-turtles & N+ r0 m. u1 b# A# u
set shape "person"
z& [9 H4 \, Z. gsetxy random-xcor random-ycor" j+ I9 i: s: \6 _, h
set trade-record-one []1 v. O4 }+ R; K% ^# v( V% F( L
$ v; d) @ y. b6 nset trade-record-all n-values people [(list (? + 1) 0 0)]
8 M P r4 j$ Q/ G$ a
4 p3 \$ H/ Z3 i p" K$ xset trade-record-current []
" ?/ p& A5 Z; A+ uset credibility-receive []& h1 V# \5 t9 |
set local-reputation 0.5
( n6 O! j, t# s+ O9 Z2 _5 B3 P2 Mset neighbor-total 0! J) w. R; T1 T, a
set trade-times-total 0( U. A/ N$ s H3 T7 D6 S
set trade-money-total 0
# G, V: N: J" H0 g# i% fset customer nobody n8 \. R: w2 ]
set credibility-all n-values people [creat-credibility]/ p7 }* O) ~1 r' Y5 c+ y
set credibility n-values people [-1]4 T% o; `$ h! k* H3 g0 ]
get-color* W0 [' {4 P# g6 N5 q
3 c3 D1 N/ w) n. E% Iend; p% v A5 c# l
4 n! a/ M! h9 f X/ zto-report creat-credibility3 i% a4 J# Z4 g* ~* X
report n-values people [0.5]
- i/ I' D \) n+ ]( i5 T" F% S% @end0 V5 B9 n( d% j- W
[+ b; W# j& [0 s* S0 `, Jto setup-plots
v4 J- y4 {' F5 s2 F9 D3 X' O% `. ^ \- o& H
set xmax 30$ H5 @# y- K6 S+ u& p
6 {: [8 \* D' }8 Q K9 Q1 z, o
set ymax 1.0. @" _, f u9 Y* x! Q
' M4 e( q2 L. o" w$ J% s8 |5 nclear-all-plots
, @9 k8 x9 r3 w f5 Q/ h
7 v+ L6 T4 R7 bsetup-plot1
4 e2 `! F/ D$ x0 U; v, m* s; T! Y8 [. ?; t$ p v
setup-plot2, Z5 E+ I: ~1 V9 P
* \" z( M8 |% lsetup-plot3# X/ Q* z( `1 q7 D& [* L. l4 `
end8 r* M0 w. ]6 M5 R. \
) L6 |! b/ Q: y4 Y
;;run time procedures
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; c! C5 D( E; yto go5 f. g, [9 g' V" ~$ R0 u2 |
8 n- Z9 Q) ~- F+ _1 T2 D9 eask turtles [do-business]
/ V, o0 q5 i9 Q& P, M0 C7 hend+ A9 n7 q& r8 n: V) i4 [
7 T# d' H! f" M Qto do-business
0 n) m8 u! w* c2 U3 C
. @/ x4 j0 c1 [, ^; r% k7 c! J' |0 n7 y: C) O* g, z! E) Q, a
rt random 3603 R, O1 Z/ ]* i$ x7 e3 \2 k
' ` T! ]' Y( _. ]9 ^ z5 Q. k
fd 1
1 t B& F- }- {& f6 K0 U9 ?. Z) }3 e+ q
ifelse(other turtles-here != nobody)[
H7 V' M4 x' a( U4 D" U$ _/ K4 ~$ w
set customer one-of other turtles-here! i1 W2 z% h# z$ M. H) f% l# F
1 d _7 B2 ^% f& P% h& I
;; set [customer] of customer myself2 l$ u b# c% Q4 o; z4 G+ N7 k
6 c0 c. Q2 k% f# Vset [trade-record-one] of self item (([who] of customer) - 1)1 B7 \! u) U8 Y6 L: X) A
[trade-record-all]of self
( H8 h9 _9 j! j5 X4 H;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. Q( Y% c) Z; ]& k# ]( O% P* Z) @* A8 i. b& p( c0 `+ I
set [trade-record-one] of customer item (([who] of self) - 1)
6 p7 C0 E+ I' u- x, C[trade-record-all]of customer4 q3 w1 @) b; H/ a2 r J, k
6 x( u+ W; |: Z: r. qset [trade-record-one-len] of self length [trade-record-one] of self
& r) y6 w! h4 h5 S3 a
@+ Y* t/ V* R2 m1 N8 _set trade-record-current( list (timer) (random money-upper-limit))
( v- p" n& @# @1 k# `
# u! ^* x/ d+ l% @& _0 @ask self [do-trust]
" Z5 G0 z9 m2 ^ R; ^, F- K: _;;先求i对j的信任度
- S7 L$ T5 }' ^ ]& M
, y; o. F2 j' {( P1 I/ V. U, p+ cif ([trust-ok] of self)
2 d: ?) k, c7 G9 ];;根据i对j的信任度来决定是否与j进行交易[) ` C9 _9 i9 v6 q7 e
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
( I ?. I+ R" H+ u
! z$ O I; ^$ }) E) \/ H* e0 C4 k[( |. G. V( j+ \
% R( d9 W) N9 P9 W
do-trade/ {8 y+ f" E) I0 S# m
% p7 e1 W+ X& ?' y9 y" c/ m( Iupdate-credibility-ijl z5 Y( P4 M* A3 ~/ |" \% U/ D
% K/ i1 Z* D( K/ L/ U4 I
update-credibility-list
* C3 G6 w4 D% Q6 o9 ~" Y$ H1 H4 z5 A- _" K: F8 t) v
; `$ n+ ]* z& F9 \$ b' `6 a: a
update-global-reputation-list
: O5 s3 w2 c: a% a$ C) i! A1 e( ?3 w2 L7 {
poll-class
8 `# d( O- {+ `: m7 j! c/ b9 a- H, ?5 D9 j8 r5 k7 ^
get-color9 ? u( c. g5 x$ g1 w4 z0 g
. b" V5 I' ` L) s, M( P8 ^3 T! W2 T]]+ Q" L) j* |) t' w( ?3 w* m; y
' p. q2 O3 O: q6 w" ^, p5 S, I
;;如果所得的信任度满足条件,则进行交易# s* g* r$ B$ V# f, ]
- |; W% n# T9 o# M2 E[% \ T3 G1 b' ?& {% o* P1 d& S
( q+ h0 K- e- M
rt random 360
( e; n6 |. z# Q5 _8 v
. s5 j* L, _. ~5 Yfd 1
) J) [7 A- l3 ?2 z1 P
* i$ M0 B8 @2 u0 B! D0 X' I]
( N$ `& h$ m/ _: l8 R Y( {+ O$ [- x. a. j; z A! d
end
: p' ~% g1 Q: U8 s9 w8 `0 e$ s
to do-trust , N5 g7 ?7 U* E+ o
set trust-ok False
# k/ W( t( E% r2 X' g
8 m+ K) c* C1 u( \! g/ p
/ Y5 ?. r2 P( a* S6 o2 N3 b6 ?# Wlet max-trade-times 0' I! `9 T% j: j3 O# H6 K
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 O6 Q7 V1 A# glet max-trade-money 0
! T- j7 i5 Q, R$ Pforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
# O8 K, U' W/ ]2 [: C2 Y- _7 Slet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
$ c' Q1 L# b: ^& [6 n, f- Z8 C0 |
6 g- q$ k% B2 _4 c. jget-global-proportion$ k; v r. |' E$ u- J h
let trust-value
# G3 V1 ?; B/ J& i! a9 tlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
" S' _' O% R" u( e% p( [if(trust-value > trade-trust-value)
- x: k- Y4 O. N( g[set trust-ok true]- U& v7 Z1 Q3 ? |( X4 I
end
/ ^' y0 w! V. f+ U$ |3 e6 r; E4 X
9 `: C' N% k. G* |2 Eto get-global-proportion5 a1 o6 Y! h9 J
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)3 ^; R8 @7 i/ `0 ~0 P B5 B
[set global-proportion 0]
* m) _' U9 _' q! X x) P$ _% B[let i 0% [3 C9 N" R' r6 p
let sum-money 0
, I6 q1 X# N+ G* Zwhile[ i < people]# e, ^8 n% ~& X, L+ ?
[/ G5 O2 c' T; j# e
if( length (item i. C6 \: W; s$ u7 }- K
[trade-record-all] of customer) > 3 )- h5 J2 l9 \( `5 R! u# \
[
9 K$ p( f2 M! g; r- \( i+ }set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
2 w' [; p* v% w4 i7 j]
# G+ Q5 U0 r3 `. r: l4 ^]- C2 t" I/ O% @
let j 0& v l8 i1 {( B: G' i
let note 01 Z% r% t- [, w6 C
while[ j < people]
1 |5 }8 n+ B. N: z, @ K[
* c G( c4 n9 W9 L6 _if( length (item i4 N! R. J4 x: `3 p% A$ u
[trade-record-all] of customer) > 3 )8 p; |2 K, y) W% I6 x
[
$ H- k3 _3 `- k" X- j8 lifelse(item ([who]of myself - 1) [credibility] of turtle j != -1): [2 U, \& B) ^$ `) J( |
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
7 L/ L) P! p& r; N: p% r* A[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]0 L& C3 G! c) I2 ^& w
] U2 o v# N6 z6 L
]
1 k; p) @; a) p! o, Kset global-proportion note
: z* r3 E7 k- m]
' n1 p! [9 U S4 K# nend/ i+ M) B% v# ~1 \1 i+ K7 O" V) k
0 Q3 h' n6 X& R( S/ I/ `to do-trade
* S F: [5 @ Z: n H;;这个过程实际上是给双方作出评价的过程
8 {. n. o. s8 N2 v1 [6 R" v5 Yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价& q" b- A) f0 j. m6 c, s
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
1 l3 F" T. a; R7 eset trade-record-current lput(timer) trade-record-current; a, D+ J$ ?0 R' H
;;评价时间# i2 x. t9 l. W
ask myself [
: `8 ~7 E" K2 V$ J2 Q! Zupdate-local-reputation
$ A( O# r1 S# A$ Yset trade-record-current lput([local-reputation] of myself) trade-record-current
2 v. H Q2 [- T3 K]
4 g6 Y. D P; ?7 C. f2 J a$ |set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself8 t* T# S+ `- c$ S r- ]* G' q0 T K
;;将此次交易的记录加入到trade-record-one中
7 u" z' |8 f2 H- O: ?set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 Q% y" j0 w% C4 I
let note (item 2 trade-record-current )( ~& b; | y; f: ]
set trade-record-current
1 q+ ~, [# J+ ^# U% O& B- |(replace-item 2 trade-record-current (item 3 trade-record-current))
( q& O1 ]8 R- T3 K1 m: G/ ~: Mset trade-record-current7 x: R- H- w$ E! G: U3 w% C1 `
(replace-item 3 trade-record-current note)
' T& |7 e* H: @. }0 k$ m
; S$ e' j1 O& f9 s t
5 F, s! A/ r6 m1 ]1 }" J6 ]* @0 eask customer [5 v! z8 [7 G* t" d/ i% R2 Z
update-local-reputation
6 ?6 M, T+ g# m& U7 v+ ~! h' H& j. _set trade-record-current& s+ i3 p3 J# i9 Z- S
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
! q" w# E( ?: Y1 X& z]
" j4 g- ] u5 X; ~: d8 d+ q4 D% `: F8 B; n
* |; o. e, n% q7 D; `( l
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer# Y0 P" _7 k$ W* R
7 D4 [1 Q% @. K0 C6 t8 e6 fset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))* U( P' \* G# \1 m6 C
;;将此次交易的记录加入到customer的trade-record-all中
3 D. v0 r, ~2 T. V2 E+ F$ M9 Hend
1 ~ _ G$ E; E) w5 v$ u A
" _# w7 Y* @0 I# N" O$ |to update-local-reputation
. ^3 A4 A! H6 s3 Jset [trade-record-one-len] of myself length [trade-record-one] of myself
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$ H; a, l3 L9 \3 n: L8 P) f
, F" o, N. L0 ^+ {: l;;if [trade-record-one-len] of myself > 3 % C3 z* b8 D: r! L
update-neighbor-total
& I+ e) k6 i" K! r% p7 Y1 b& g;;更新邻居节点的数目,在此进行
1 O$ n+ }/ j+ A: l2 d4 Zlet i 3, @0 A. S/ S4 [8 _
let sum-time 0* H( } F: t+ c2 E) F
while[i < [trade-record-one-len] of myself]2 M- ^8 v, k0 n$ t" e: W- Q0 D
[
( R1 y; R+ V6 Z% L( U4 K. _set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 X/ e% R5 M5 w1 t3 ?7 c+ ~set i4 E9 }$ q" L D$ f5 a
( i + 1)/ q! }0 E) g" ~0 F7 g4 b1 I# Z& P
]2 E- @# c) q" l& V$ I2 [
let j 3% L/ t) C" i9 U1 Q
let sum-money 0
3 s' U1 m6 S( w1 ]9 G5 q' T( Xwhile[j < [trade-record-one-len] of myself]* T3 G- t* c- J4 @
[
4 U# R, I. Y4 v# |' d! _* 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)7 A" s) B, j3 P% }' r
set j
) h% O% G3 j3 q- h" h( j + 1)
: r8 F [: }8 J6 q+ B" x]
6 E% m: |* C* j8 ilet k 3
. N0 ]9 A1 R5 l" Klet power 0. c: G) {, k3 V C: }
let local 0( R5 W- r9 v" b7 a# u# M
while [k <[trade-record-one-len] of myself]! P# g& G5 J. V2 O0 s: ~$ w O
[
1 N X) |, F5 N5 j5 kset 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) 9 t4 [/ V, M$ h, g# X
set k (k + 1), P; J* Z! Y& ]/ T; y
]
. _ t( R m5 L2 x% T1 F: W4 S* ]set [local-reputation] of myself (local)/ u$ x# v' n5 w g# d
end
0 `, U+ U) V$ s8 O0 V9 Y7 ?
9 r9 [4 w2 U* M) K$ dto update-neighbor-total
: p- b" O9 [2 Z: S
& z! H3 j6 Q v; t% d2 `) X# c* {9 [if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ w. C2 f) V/ F% T, ~6 ~- g- n! \6 Q1 |- t9 \0 e2 g
% Z" m9 ]9 T0 M/ z6 T& `end
9 W" i/ N! }3 z6 K/ |6 e3 Y+ e( |2 ~; ~- Y+ N% F# M, U- R7 e2 h
to update-credibility-ijl " I) m+ ]+ _( B/ x
3 S) p% U) G. }! u$ 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 [( `0 S [6 @let l 00 B6 e/ l* s& r5 [- ]% ~- g
while[ l < people ]
5 p2 B9 z, i- S6 s- F, H;;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)& P- F! i: M {: N5 s
if (trade-record-one-j-l-len > 3)
) U6 i) p' j* z5 s; R5 `7 o |) x[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
; w, @" r: y$ V nlet i 34 J# n- N: }+ C+ I5 d% M, g; d
let sum-time 0. c5 h- G* q) ]' i/ x, ^
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )$ o+ ?! [0 j t/ S) W3 G
set i8 ~7 E" h. p! Y& ~* W; `0 L: X1 _
( i + 1)
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( r6 ?0 w7 {8 s* S3 g( f2 ulet credibility-i-j-l 0
% N' o2 x. d9 N, S, k5 H/ Y$ D6 R( B;;i评价(j对jl的评价)6 i' ], [9 N" r# s$ n
let j 3; E. _9 ^/ y) L! ]- Q
let k 46 C7 u! {5 J- M4 O2 c# C; o1 Q
while[j < trade-record-one-len]! Z" q" Y2 h( N$ j( V5 L8 Y
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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$ E+ A- x: B3 Z ^
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 e( f" k0 ?9 D4 p- [: Jset j+ w0 M( }. V$ v4 l
( j + 1)
) A4 J6 ]2 {- T9 c7 V6 H]
; v9 ~4 t. V) ^/ [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 ))8 ?; V: E) B0 s! u- i, R6 Y- ?- B
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& o# X' Q' A/ ?5 D* R8 Rlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))% m" q _3 ?8 c' x; F% C
;;及时更新i对l的评价质量的评价
! ?+ Q7 o3 z. {! |( Aset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
. Y, K7 F4 Z! D' L0 Rset l (l + 1)$ j* d# {. r* D2 x! c, \
]
, f8 D$ C" l7 B. ^1 \0 k5 |end% ^6 k' U! y) |1 u$ E5 P9 P! Z& O
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to update-credibility-list( B" V, h; o7 V/ J+ t m
let i 0% [ G% x1 A0 N3 P0 J# F
while[i < people]
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, H3 F+ G' Q$ u* k# d" r& O2 _; Jlet j 0
* N% S2 B/ H( g1 V0 r: ?* |let note 0
+ |( V& g% j& R N! L2 W9 A, ~3 ?# qlet k 0
! d, A7 H$ D. N8 ]0 r e, D;;计作出过评价的邻居节点的数目. }2 E1 r8 c6 v6 F+ l8 ?( q( k
while[j < people]
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# \2 N0 i; _! U9 }) q4 d2 ?' {1 Yif (item j( [credibility] of turtle (i + 1)) != -1)
7 k5 e! f0 T; l8 ?" L( V;;判断是否给本turtle的评价质量做出过评价的节点
& G9 ?+ y9 d- j [" l[set note (note + item j ([credibility]of turtle (i + 1)))
! n, O6 Z& X6 X6 z J;;*(exp (-(people - 2)))/(people - 2))]
7 k6 {! p/ ?7 }' e% f8 Gset k (k + 1)- f8 \8 j7 J- F( I( Q, K
] g' ?: `/ t: f6 Z
set j (j + 1)! |+ y' r; P* o) A0 O& v* I% Z
], g0 Z! g) g! q
set note (note *(exp (- (1 / k)))/ k)( W5 B9 ^4 v0 @
set credibility-list (replace-item i credibility-list note): J: D; _- m8 O) B+ W
set i (i + 1)
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3 O8 c H& W% t5 I; E; i: Oend. X) u) j# }$ C' ?* h0 Q
3 m8 w+ b$ i+ q% y; i0 }9 s. Dto update-global-reputation-list3 a* a/ A# N, h& d r0 a1 x
let j 0
5 U9 Y1 C! ?) |! D9 xwhile[j < people]! T& |- v, \; ], q m
[8 {. {, ?0 |& P8 ?
let new 0( E4 E8 V8 X7 \2 m! R
;;暂存新的一个全局声誉, f0 h5 V2 J/ a0 K1 n1 b
let i 06 D |$ b! j- z% T* a4 O1 o
let sum-money 0
0 J* D. w- R( h( k) ?/ Zlet credibility-money 0
9 Y h) @+ k! s6 g: Lwhile [i < people]
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/ u, g. f( P+ M2 N, Dset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) `; e! k8 W- {1 @. \8 i$ u4 [0 [set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)); c' T( M0 y1 I0 d
set i (i + 1)" f, e( A5 P; N; k# o
]2 j- b1 u' M' H; t6 ]
let k 0
) A" s2 A! O: b4 I, e Flet new1 0
6 B& j7 S, P4 f. _" Z1 Ewhile [k < people]9 }- v1 s/ f* X
[$ N S# [ P! z+ q! c3 @
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)- W7 m( G; b" w, H# `: z
set k (k + 1)
$ l6 J# j g" y, G! K]
4 S2 w. \; ~- |& R' \ f+ Nset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 6 q" H( M3 ^# |3 M5 m
set global-reputation-list (replace-item j global-reputation-list new)
( e' v7 [9 A8 d) k: X5 y5 oset j (j + 1)# v0 k; Y) P6 u5 S2 a2 h
]0 \0 `" Q; m6 c! r _, A
end
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B. t1 M5 B# C8 ~
! U* L) L. `% Q( h& q' O; s* V0 G0 n% l
) ?" O% l' |/ Q: |7 r3 N+ Sto get-color' f8 _6 X- H5 j. m- K% f
- {( }1 m2 r) l2 w$ Y: a
set color blue' q* p& a) f$ `4 M
end
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7 C# h$ _3 W, Ato poll-class
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" ?3 h% ]# R2 o# y6 U2 N3 t8 u C9 U3 Mto setup-plot1/ b+ n) p/ B4 w7 W
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set-current-plot "Trends-of-Local-reputation"
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5 P2 N1 y# _/ s& fset-plot-x-range 0 xmax4 ?; U( r A, N+ B
( N, z& J3 J& ?7 pset-plot-y-range 0.0 ymax
) \3 b7 M/ \8 T# k8 D; l @end/ j/ W( ?9 L7 l9 h# O4 E
5 J, Y( H) j+ G, T
to setup-plot2
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5 O) R8 G. _& r9 p5 {2 c+ a8 I. _set-current-plot "Trends-of-global-reputation"
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set-plot-x-range 0 xmax$ e$ y! ? S! r0 N! s7 t- O
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set-plot-y-range 0.0 ymax
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7 J+ [" a% J4 R; j4 E
to setup-plot3
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; B+ p, \1 x2 `! _' iset-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax2 w0 d" f6 e3 \" M( r8 B
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set-plot-y-range 0.0 ymax
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to do-plots" |, ^0 |/ E- W3 r) B8 F2 W, K
set-current-plot "Trends-of-Local-reputation"+ E- a2 d2 c4 ^! R, i, ?
set-current-plot-pen "Honest service"1 b- b' M! o m3 S
end
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2 { v Y2 R. w% f3 q4 B/ V[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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