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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
4 c; [4 h' c. ^0 fglobals[7 Z5 U# o9 F) E. T! M7 `
xmax# B" m+ c/ ~( R5 t' c" ?
ymax
9 ~, O3 l- [! Z0 ~& Vglobal-reputation-list
~3 N: b7 i" A p4 D8 c+ P' l4 k! e7 }
;;每一个turtle的全局声誉都存在此LIST中& L1 S; ?0 J% H! [ o* Z* }
credibility-list8 U/ _2 M1 J. _! _
;;每一个turtle的评价可信度: w( X( n* Z6 ~: h0 c) R
honest-service. \1 G: n2 }& g% G# M3 M
unhonest-service
: ^+ B) f2 J- B G- |oscillation0 y7 z1 e; t4 \: L7 X2 D
rand-dynamic7 k' F( L. [0 E, b w. r# p+ g8 B
]
- A: C) K: }$ K! \4 y; B+ h: R7 b W9 ~
turtles-own[! N: s/ |6 B8 ~ r% z) ?4 x
trade-record-all
/ K0 i# v- J! @; A# a; S# n;;a list of lists,由trade-record-one组成" B1 |- Q) V2 X$ A7 p# L
trade-record-one4 Q9 W0 p9 a7 B8 N# `! K; s
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录4 K! X6 [8 p; B0 A
& r4 r; y! u+ z( a& M3 C0 p
;;[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]]; w8 s# o. k* t! k: n
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] I4 Z8 S9 w/ j O3 F
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
A! W0 v. e5 |0 F# o. Jneighbor-total$ p; W) r! I( l8 c
;;记录该turtle的邻居节点的数目
! k, @" n& ~7 m6 [' k& Z7 ~0 Strade-time: u% k5 L/ [5 ]
;;当前发生交易的turtle的交易时间* n) V- o0 q, ]# [" k4 U
appraise-give6 I x$ ]7 O" q; E& A+ C
;;当前发生交易时给出的评价
K$ C' l5 _5 J& d- h; i8 ?5 i, M$ lappraise-receive% P6 @+ ]4 U- h+ i/ W% [9 ~. z
;;当前发生交易时收到的评价
, g1 T' L4 }# e9 _) l5 b3 U' S* gappraise-time: F7 v, z# {* R8 D4 d
;;当前发生交易时的评价时间7 i! a8 S$ f, J4 Q4 ~' y" f
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
: v7 ^/ X. s$ I; D- V0 ctrade-times-total( j$ M: ]& K) V& K& [3 H
;;与当前turtle的交易总次数3 n1 Z! t1 U* Z" [( L
trade-money-total
$ u0 @2 J1 l6 x/ u C/ A;;与当前turtle的交易总金额! x1 v; u# m" l0 T, s& _
local-reputation
3 S$ w, d$ |7 t" X7 uglobal-reputation2 W( N6 Z) y/ h
credibility& {+ r1 j; L# w0 e5 Z# q- C
;;评价可信度,每次交易后都需要更新
3 d" Z* F ^: |7 T* vcredibility-all
+ u, e' `5 h. Q1 E; y9 M2 z;;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& m6 Y" D" ], Q! _
' h* g. {# V4 H;;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* e% `7 Q3 }8 x4 v- F! N. P
credibility-one H: D7 H; m7 g! P! h+ T4 G
;;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 ]8 }2 v" B4 u2 s+ H' z
global-proportion
% q) q4 l: V! T$ B3 H; Qcustomer. L- t, H1 s' [. U4 s+ s9 x
customer-no* N" G m5 {9 M3 ^& g( M
trust-ok% |2 E& s+ P% Q- e
trade-record-one-len;;trade-record-one的长度
% f6 Y; J! A7 B, A9 @]
# ^) z9 I0 \% y7 k
: S$ ^( R+ D6 P+ A4 U2 {# d;;setup procedure. X$ V- p. u# W
_( ]+ D9 t" {
to setup/ R J0 c. U# h; s
% t# I t) m# b" |( @' X& E
ca
8 \1 T* Y1 E$ ~. H
2 v0 O( t) p+ F* ?# Zinitialize-settings1 L# X, s2 J! A7 W& {
- N5 P2 x) U! d8 @crt people [setup-turtles]
4 H) g- L: F( k2 g$ }- }
, ]# B( V9 l. B4 ~reset-timer
7 N8 S* o4 y( Q
4 s0 ^. z7 h( }poll-class
1 S1 L8 B- X5 c# L/ C+ d
: ^$ Z& w: K( L) U! m. Ksetup-plots' Q" L& U, n) K& ]0 Y
7 `2 w7 o. [4 Z, a9 T1 _
do-plots! r% Z5 ^+ C2 R$ M5 @
end
8 f V. V( C l9 P
" c. R! l& g W! f' g. p( L( Vto initialize-settings! y' |6 g& c. ^! K" C
5 E* h$ W; _; y2 mset global-reputation-list []$ ^ s, z, y) l) a6 F2 A. e- C
, X. ?% Z0 _! U' W' B1 ]set credibility-list n-values people [0.5]* s* c1 D8 B% B2 I& I* N0 g- ~
. C& K1 S& Q8 A( o# h
set honest-service 0
# t2 k" B( ?# S5 V" J- z9 c
' }- D5 w6 f4 ?/ Pset unhonest-service 08 \% I3 d) a7 Q: J3 e+ a
5 f. T; v" v! _
set oscillation 0; w3 `4 u$ H) \6 m; b4 H& T5 ?
, @2 ^" r& `) d3 Z7 z
set rand-dynamic 0# ^* k! {3 y% Z! q
end$ v. L+ r! F8 ?) U
w% |0 N4 d/ J5 ]to setup-turtles
# E) v( w, ?8 j- K" A% kset shape "person"( A' x7 I. r p% D
setxy random-xcor random-ycor
' n @2 m. [6 B" I* ]& t( V0 Dset trade-record-one []- k& d) W" \3 e
7 v: ~# O0 E; Aset trade-record-all n-values people [(list (? + 1) 0 0)]
" V2 d* h* h9 x3 N6 i$ w, S0 o5 d; V/ J
set trade-record-current []
. H& a2 i8 x# V- S( Zset credibility-receive []% m6 ~2 Z- @9 h. v: g g8 l1 ?
set local-reputation 0.5
4 z, x4 k: W" _& cset neighbor-total 0
, I$ u% G- G0 d) Mset trade-times-total 0
+ F$ R; Q X2 l; O3 U$ |set trade-money-total 0, K, K' r0 V, I- ]
set customer nobody+ r0 A* _! L+ L- P- l
set credibility-all n-values people [creat-credibility]
! i0 g/ a9 a/ Jset credibility n-values people [-1]
: N' a% [ M# [- j4 Dget-color" z3 G( x( ]9 B- W# {: A) Z; L
& \) `' g1 w+ _3 |4 l8 T( B5 ^end
! p. @: W& r8 O5 |% ]& _3 ~) W+ S# n- @/ \) l+ o
to-report creat-credibility
; j- q7 q. J# J) Ereport n-values people [0.5]8 b3 ?+ Z# c" e& W5 n6 B/ l
end
! E. z z3 ^5 c3 U4 T2 @( j* W
7 A& e4 K0 i( }7 o, {4 S4 sto setup-plots
3 e# T; x' r0 P5 Y) e) d
6 k, O1 k i1 k% t% v1 O2 ~set xmax 30
- }+ m4 G2 K- e, o- V( r8 B }/ B) h! d
set ymax 1.0 f% v$ w. H7 w* U Z8 j: Z; w7 D
C, L) p R2 } ~/ i: k5 W0 j
clear-all-plots
U! Q4 @+ T% f: j& \: h! T. b+ n# z& }4 w$ t$ h- n+ T k1 \! J
setup-plot1
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setup-plot22 i& d2 p- Q7 _6 |% Y* ?. J
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setup-plot3' p' x1 N# z4 H# `% B
end
8 l2 B6 y) }+ }3 o& E
3 B5 d, f, p4 n; z* m& H;;run time procedures6 Y1 v6 ?! k# o e1 y7 Q$ Y
p( m" H ]4 u' V0 u
to go# B( E' V3 Z6 x) d! t b, s4 s/ H
1 Q E" O; |: ]
ask turtles [do-business]. X) {* ~) d e% m/ @+ w5 T0 O
end
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to do-business
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) O4 f% }; A+ G7 a% W. s' L' @( T" f; ~6 R: G. f
rt random 360
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/ {! g6 i: H Ofd 10 u0 ?8 j4 S8 q1 X9 o8 _9 }
0 E. R _3 V$ H( l/ s4 n& l
ifelse(other turtles-here != nobody)[
. s, Z* `1 ~# Z8 A6 G8 ^1 t6 s8 n9 _, ~& m# O% `
set customer one-of other turtles-here" p+ K: ~ s E3 L
G* Y2 b! `0 u) u' y;; set [customer] of customer myself
3 [" Y- F! B9 l8 p! T
5 g5 \" b6 { j3 c( aset [trade-record-one] of self item (([who] of customer) - 1)3 m+ c0 X5 j, x/ s6 R
[trade-record-all]of self
' y( o) [5 u7 h;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( Z; ~' K1 m3 Q+ v; u+ o$ n V) N5 M5 e% @3 e2 U7 M6 J0 T
set [trade-record-one] of customer item (([who] of self) - 1)
+ c# _. n, W2 a8 A f$ _. y! }, g7 z[trade-record-all]of customer- @ x( l: A5 ^
# P8 ]8 e: ^9 X) Y& sset [trade-record-one-len] of self length [trade-record-one] of self* Z1 f+ g& ]% d! [5 K0 h
( I$ `7 q. ]- h
set trade-record-current( list (timer) (random money-upper-limit))
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* |8 r& v# x. g, @* }# Yask self [do-trust]7 r& c6 ^! Q# E: K* T( R, V& w0 D
;;先求i对j的信任度
; l" E2 V7 }3 ~% a8 S S+ v' v9 y1 y! o% \& l* U
if ([trust-ok] of self)) ?8 V l8 I* }" D
;;根据i对j的信任度来决定是否与j进行交易[
2 o) {9 |' m! Q" ]& P4 `ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 b, Z1 k' Y6 E8 a# d
- `$ {" B5 c. X) x$ H6 J: P
[, Z3 }4 Y# L2 }! G) a- V# P/ n
$ a; S6 \! K2 y% M
do-trade
; S: N6 N2 K6 Q8 u. r' w$ ~0 R) f4 b
update-credibility-ijl
% p& T% F4 j; v8 P$ e( i# G% H+ G" Q- X
update-credibility-list
+ p3 b" ` s, g1 O3 n* e) a7 @* }. }8 r7 e- ]9 V5 p- ~2 Y
$ R; P P" Z- _9 b( G
update-global-reputation-list
2 J s: E, x) \
# B# `# C; l2 Y6 z# r# x7 B6 kpoll-class; Z' [5 J* R+ N% c$ \ x( C, s
- F! O* J3 q. a8 T ~( Vget-color! R5 v/ c$ ]5 p- e3 T D
& l7 a2 U4 ^; Z6 Y$ L5 M1 n]]
% T: n0 E4 M1 H# ^" T0 u' }8 ~- ?5 B
;;如果所得的信任度满足条件,则进行交易1 B, W; K5 X+ a$ h+ F; I3 [
0 G: b$ b. G+ m0 F[( K4 K+ ?( C& I2 {5 x
2 }; r% K V* p0 o J' b
rt random 360
5 n+ p6 o& @/ F' d8 a- s3 b6 n. z4 t7 E7 W. V! x
fd 1
1 A) [% R/ k% ?5 \1 J, b# }
7 D7 |: z& s$ c4 h6 ?, A]
! M2 h8 ?2 d0 W6 I5 _$ _) R
, H: C9 }9 H( @% p* w# m1 }2 p3 eend
+ D' H* t: q6 `$ J7 q7 k/ V: D
5 b4 X" _2 g, n/ ]to do-trust 3 ~! N6 G6 {0 Y2 e7 X F" G- B
set trust-ok False+ s7 g- \. V' i' T* a9 p
8 d" p) X# Q/ n% s) e
j9 e, `; W1 q& Slet max-trade-times 07 u U6 k4 V% B0 k/ G! L ~+ s
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 ?/ G, `( I7 F. \3 b5 h- `# E
let max-trade-money 0
$ L: c, R( z9 E2 N' P: r) W9 M4 ~foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 Q! T0 e# w. }2 T8 f5 Jlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))$ E3 |( W" a k. _6 `% Y
; h8 Q- x+ L2 ]
6 l" w5 y5 S- |$ p7 g( H5 K
get-global-proportion$ ~+ g0 E( y, p( V5 s
let trust-value
2 `6 y0 t" n0 e' S" E' X: Zlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)5 `& S# O& V' S
if(trust-value > trade-trust-value)0 X& V6 C( ~) I+ J4 g
[set trust-ok true]
7 y, q& @+ G8 K! {end: ^# Y5 `4 W7 o: w5 V
0 P) ~# Q# `+ W% e: C- o" Yto get-global-proportion
) U2 |$ T! G% `ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
$ z' k' i3 |! y" r8 i, |[set global-proportion 0]* W: ^* A }: q# `% O, o0 \3 ^9 Y. C, E
[let i 09 [9 [& I$ a2 E( `8 D
let sum-money 0
: x: C1 F( [& T& M! ~' Vwhile[ i < people]& q( z1 |: }1 T/ t8 f) X
[# q1 |0 U {" Y5 O
if( length (item i2 Q9 U& ]$ @; ~7 K7 z' U
[trade-record-all] of customer) > 3 )
F/ w& b4 b' T- t[
- s$ t* z0 P& O- j, m: M% g7 ^ Kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
O* [, K7 B4 B$ U) B, ~3 r# g2 g]
2 ~0 Z0 ?% B- a% s, ~( I]6 v0 b; b' w$ f# S, U
let j 0
* |* i# O& V' U8 Y; O6 s6 qlet note 0
" Z y3 e: U+ n( zwhile[ j < people]
9 w1 {5 y& Z8 _' S2 e3 U6 G$ W[& S; E( p: T! D H2 l
if( length (item i& V" E1 w2 Q& L' q
[trade-record-all] of customer) > 3 )' {3 ~: u, X% _' L, ]( E
[
, h% a( T Z% Yifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)( V1 M! l. s d1 ^- Z
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]6 D% j3 a+ M' T7 Z
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]5 X! J7 E9 Q6 Z* T$ ?6 G
]
4 B# R1 Z2 S# p0 w: f]9 V, O! Q [6 z0 o0 d
set global-proportion note x) Y5 H2 e3 A, e3 x+ W- }2 D
]
# g0 k" O, j0 [, @( n* p( kend! V2 Q# D9 [6 L8 _2 H u7 ]
; e" ` h; x) X7 k+ Z) A2 [to do-trade
) G3 L2 O0 D2 f# ?: r5 h6 g;;这个过程实际上是给双方作出评价的过程
8 O% ]9 {* O: X6 H& Kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
5 } R. y) b pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
; o' Z) e* _$ i8 ` Rset trade-record-current lput(timer) trade-record-current% b- `+ R- N* h P* W. ?. T; y
;;评价时间/ k# D6 T- ?6 T" m
ask myself [
. ]( @. s3 V, O7 d6 E- [/ uupdate-local-reputation
w( \( y$ g8 K. E' \8 Rset trade-record-current lput([local-reputation] of myself) trade-record-current
/ u: U$ c; W' |! J! T& O7 K1 B]( m) X- O6 q8 N; L' _1 S; d
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 g6 `( K' R4 A; G" G
;;将此次交易的记录加入到trade-record-one中9 e. V, w% V' l
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
8 }% @. a( X- Q/ C) slet note (item 2 trade-record-current ), n3 l$ L# f; }. {" a
set trade-record-current8 a! ]* n) x4 N, ]# x; i) R+ }5 U
(replace-item 2 trade-record-current (item 3 trade-record-current))
0 F1 G' W; Q, W; u+ Z. }set trade-record-current5 i i/ n4 R/ f# o9 j/ }$ _/ F
(replace-item 3 trade-record-current note)0 _3 z, p* z$ o
8 Z& L% S: C6 q& x
4 t2 U% d7 U1 Q# u7 P$ Yask customer [
+ ^3 |0 u' T$ h; Kupdate-local-reputation
# q/ S3 F7 K; s( ~) m1 D& Jset trade-record-current
( Y9 c( v* O' w8 B" p- q* l" `1 w(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
" f. r9 r+ e$ `. J* K/ n- s]" O$ ?; ?1 S/ E) q0 C1 {- d
3 Y5 t+ R1 d' R$ ~8 `) |/ R6 ` x+ ]; g) f4 j8 F
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 x3 b- r' [- h) `, ^4 e8 x, l$ L( h& a: p# F
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)). n$ a; J. o8 U2 [% J3 q
;;将此次交易的记录加入到customer的trade-record-all中
* H' [$ F V; ~5 f* o$ v" `. R8 Yend
3 u0 [& w# ^ R
5 B% i$ O3 b8 z, V- B5 ]5 bto update-local-reputation
# G/ O0 x# {7 R8 Z- P% a5 x4 yset [trade-record-one-len] of myself length [trade-record-one] of myself1 Q1 C3 N) \# R% a
4 O' r- K4 @5 j8 c- k
# `) \: b" e+ f;;if [trade-record-one-len] of myself > 3
* K2 o# S; N q# H, @update-neighbor-total
& i' d, R. M9 n3 r;;更新邻居节点的数目,在此进行; B/ |8 X9 a$ u
let i 3
5 i5 O2 N9 v% t& w7 d4 mlet sum-time 0
6 @& _% j1 k1 Y5 l8 s; pwhile[i < [trade-record-one-len] of myself]% c4 U- u+ J9 O' W8 z( M
[
- E/ M1 ]5 e& [/ O3 V& r5 H: \set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
) A" `: M- ^# zset i% l& S- ]+ J9 S
( i + 1)
0 @7 J; e: [% f! `, r]
+ G9 t3 s: i3 a; }: L/ Slet j 33 M+ }# N4 [6 `4 N- P1 O B
let sum-money 0
9 Z% q+ ~4 @9 B! j+ C: ^# X/ \while[j < [trade-record-one-len] of myself]
( T+ i! g9 F& g% W5 g: t: I+ I[
; b( P$ h. t* l+ [& ]+ b8 d, n7 qset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time): ?! b; W+ L* Y# Q
set j
* s* h* P( \) b) l1 ?( j + 1)5 _, I3 u9 ]3 e9 o2 i& L/ ?9 ^. t
] T" c% L% T0 |& d4 U9 A7 t1 b6 i
let k 38 b* I# n; w$ h3 ^( f" j& w- N2 s
let power 0 j/ V. H6 j" R2 r( u
let local 0* ?) Y& A/ s7 D" |- C7 a+ J* {
while [k <[trade-record-one-len] of myself]) R; B! Y0 F% |" D9 i
[* `# N- _) Q# p- F7 ?+ y
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)
; [, G. p: Q- h5 K wset k (k + 1)
! n" c. |2 E/ \, F/ g" []* _( u1 Q+ m ]& N8 }
set [local-reputation] of myself (local)
0 i' n/ I5 E0 B7 Jend$ v2 c# {* R' X/ X9 O$ S
- q* a5 N: H. w5 t' W8 F: J; K6 _to update-neighbor-total# {# {$ H& m* j G. v6 _
" k0 i% J; ^. m" ~0 i) G5 |if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
% d; X% a, N9 D; w. @( w: A& ?* v( B: z: N% G0 e/ Y0 p
) q5 J! e% ]9 Z. X2 K& ~end
7 H- u6 k, e- {, t9 x; ^
% z0 Z+ l( f1 }2 s4 v3 kto update-credibility-ijl ( U+ ^' @ e2 t# Y7 H. F+ u& m
# Y- C9 X4 M. S" H;;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。5 L* h: \" f( {3 b" m$ t( o
let l 0! I1 X- N2 {6 M+ R3 X* q
while[ l < people ]
/ S- ?8 o: B' Y& q# ^- a& Q' 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! ~1 C( r" `7 K$ M- F! N
[
V6 b% u) ~7 T- [( D5 a" llet trade-record-one-j-l-len length item l ([trade-record-all] of customer)! p! _: M5 |" S- J8 e, R9 C, y2 K- C
if (trade-record-one-j-l-len > 3)
" q' q' v4 D7 Y[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
0 i% E8 d1 H1 i: g0 U5 S. Vlet i 3
, ?/ `8 v8 O* x) z5 hlet sum-time 0
6 a" T1 h6 l9 owhile[i < trade-record-one-len]' i9 i* I8 o6 G; ?; T) H
[
+ }. t( y8 h9 m4 ^2 \& q8 S7 nset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )$ r; V6 [# c7 x+ y+ d
set i
6 m7 a, a. {0 c; w9 G& X. h. j( i + 1)# E$ {$ u; k+ M i R0 N
]2 V( M2 B% x. w2 s2 {) l
let credibility-i-j-l 0
+ L; F( K" b( z, f;;i评价(j对jl的评价)" E/ K _" M0 f! X* Q$ q# a
let j 36 \8 X# T+ B( n: {: U
let k 47 h2 T3 ^- A+ q
while[j < trade-record-one-len]
: q; g2 x8 |1 P! j[$ ^& H5 U/ M, e# m% F
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
% d i8 R' b2 H4 L" d! R- hset 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). P4 Q* d- A2 `) d Y) ?% @ [
set j
+ A9 O1 w% w" o( j + 1)* j: @: d# {3 J: e1 J1 _
]9 S8 D( Q4 S: @! m! A
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 ))
; g% O& U; M T* S; u9 S1 F: H, D0 h- r! J3 ]# x
2 a! c- O5 ^% ^! O
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
2 c" M2 @) E4 B" k! U; q7 F/ _1 g7 H;;及时更新i对l的评价质量的评价6 p* e5 s+ k3 s! Q0 |0 s
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]# j B$ L5 f& M5 m! y
set l (l + 1)7 J5 G) h* z5 }% Z1 `! g6 l1 q
], |: C) X* T" ?) V7 ^/ l' k7 [
end
# r0 z% Z# l$ ~( L# G: v
9 a. e" D3 t. F. K3 a% cto update-credibility-list. r4 B5 i- q* M* o3 z; O
let i 0& ^( I6 N2 l+ A z' G
while[i < people]) Y# Z; f. `0 P& L! p
[
+ F- P7 \4 [ H7 elet j 0
2 `% Y# l8 U. k8 K9 W/ x* `8 Elet note 0
# r. X$ Y$ M% }7 Q" v# t) y$ v* Dlet k 0
2 }$ ~1 H. ^+ [$ M;;计作出过评价的邻居节点的数目) H% m5 l/ C7 Q C6 D6 ]0 R% ?
while[j < people]
! D. C$ ?9 i# Q2 _3 x9 P[
5 G' ~8 w* D1 s4 r" D) Zif (item j( [credibility] of turtle (i + 1)) != -1)7 @2 V) X M% b& T B
;;判断是否给本turtle的评价质量做出过评价的节点
3 S( S! @0 g" l[set note (note + item j ([credibility]of turtle (i + 1)))
! Z* h& w, @# ?& S* W. X- J;;*(exp (-(people - 2)))/(people - 2))]
0 a% G7 F s$ P1 H( D4 [) [set k (k + 1)* B5 b- E9 I4 w
]! b; |* n }' r0 f6 H
set j (j + 1) L0 _9 ]: Q& M$ ]
]$ B" `! X* W; q! }8 c' B8 I
set note (note *(exp (- (1 / k)))/ k)0 C6 o1 h* Z2 M& K. ~
set credibility-list (replace-item i credibility-list note)
, E9 n' c" J- G! b: ]set i (i + 1)
, ]7 s4 V- s+ N1 R: O]4 O" _6 z( C& Q1 D) G _
end/ \& E8 `+ \* }1 u7 D' g
3 C$ r9 u0 n; `" S" s. tto update-global-reputation-list7 } q$ ~' h. V$ L0 P
let j 0( s5 N) q/ Q8 j8 j1 Q4 e7 {
while[j < people]
# s5 w: c( j: U, Q0 a[
W* g. u5 A" \- Tlet new 0
" C- a5 o( b3 f* k;;暂存新的一个全局声誉, u/ S& }' K) Y
let i 03 C6 C8 E8 w' f t R6 e
let sum-money 0
* E1 A2 |" v4 O$ plet credibility-money 0
) N( ~: r- j/ o/ Xwhile [i < people]. T5 ^3 D" U* P4 K
[
: b! K( y6 _6 {- n2 U" Cset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! f2 b" p" m2 r5 H
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
( M+ j: P6 v% A- Gset i (i + 1)# h; W( u, h+ m d
]
9 O* r0 K( f- A; I! _- d6 u% flet k 0
/ h. ?6 ]. o% Wlet new1 02 c7 i* x, O' `. V: s' X ~
while [k < people]
" z0 y; q& u% e1 P[
- @1 P: O! t: Vset 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)
, c: T" a9 @ f/ I( L: ^ n7 h; cset k (k + 1)
! i5 u' N+ u$ B) S- @7 b4 z]3 w) N# R/ R/ ^. [* |
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
1 U( L/ g. q% a+ J' F- Iset global-reputation-list (replace-item j global-reputation-list new); S& _2 V7 N+ B8 h% `8 @
set j (j + 1)
6 z( `7 i, C" ]# |, u6 \/ C]
; U6 z+ t3 ^5 P. ?end
$ l" b9 L& E. R# W* \* ^6 S) \
1 L$ E& L! }- F: H& @7 J) V. T1 d p: C
) Q. M" Y( e# M6 h4 O( s( uto get-color
4 M% I% c+ O* u' P3 x6 _) }. ^% v
set color blue
8 a# R6 c* e- ?3 F6 Jend
, _1 P+ N4 B& `/ b$ ^* t U3 n
6 R3 p# n! {' y) j9 p+ Q0 C& jto poll-class6 F" ?5 X2 Z1 P5 g9 U3 J# i/ ^! s# D+ k
end
6 O7 P+ T# x, R4 v' I/ d( k. v
8 L! p; w0 n; J7 F9 {to setup-plot1+ C8 I l7 W" c" H
% k6 O7 v. k7 d! |- C, G2 H. e
set-current-plot "Trends-of-Local-reputation"/ ~6 g) D& K# R7 l( O1 M
1 m6 S# h9 T+ C( `# v1 R \% n
set-plot-x-range 0 xmax
1 l- H: X+ x7 ^, t1 f( k+ b X% v/ Z4 u K$ Y7 e
set-plot-y-range 0.0 ymax
" s8 Q5 }* C9 K. O& Lend: g3 R/ t4 T* u* e( L+ z; l
0 ?; K4 i0 x; c y6 m0 ^( yto setup-plot2! F% y5 A+ ?/ l9 v- {
7 X D% ?* D2 Q5 d$ O* Y- Xset-current-plot "Trends-of-global-reputation"
: k" a$ K" P$ ]8 g# r8 M/ t8 Z$ q/ g3 O$ K. _8 G9 S4 _9 o% [) W
set-plot-x-range 0 xmax2 X. @7 }6 k# R& v+ n. {* q5 z1 I
+ t4 M: Y8 u- A* b& h
set-plot-y-range 0.0 ymax7 G) f3 ^5 j8 n& Z+ t
end/ J) f z" A2 X$ k0 Z/ @6 {
H1 `" `4 {+ Z2 b+ L3 g
to setup-plot3
7 j2 t7 ^' x4 r2 x% {
; M3 p P' W' B K9 E- tset-current-plot "Trends-of-credibility"
+ |$ W7 i% m0 K0 }
& E5 r6 ]4 `7 {, p" `1 g, |set-plot-x-range 0 xmax- Q% t; Q. A C3 P
4 l2 w+ X; i0 d& k- a& fset-plot-y-range 0.0 ymax
* X& K1 L7 h ]* Z% K) H% Tend
- Z' G0 ^. U7 J4 i7 a% ], W6 D" ?5 k) V
to do-plots( W) T% ?; ~2 Z- X. O" y
set-current-plot "Trends-of-Local-reputation"
- s# l9 I H9 s+ Z8 L/ h8 m' \set-current-plot-pen "Honest service"
$ ]: E1 ?, J( J Mend+ d" U7 R+ |: k& B8 r
2 O0 l; A8 Z+ c: y
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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