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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 Q3 z) u: I4 R
globals[
" V- j6 @ X4 n0 E, Zxmax
. `, H4 @5 T' Z' vymax
8 D8 U; {" O: y. lglobal-reputation-list
; S2 a1 P# ~# V7 ~8 T* D
2 K2 V. Z8 \, Z" N;;每一个turtle的全局声誉都存在此LIST中: Z( M4 V) o& n: T4 e/ W
credibility-list
/ f" ? q/ G8 Y5 h5 L;;每一个turtle的评价可信度
\, O3 Q5 s4 ?4 Qhonest-service
& V, V" }2 @3 g3 Uunhonest-service
* g: k; U9 f( K# o, Q$ noscillation
; t/ s% v3 O" p$ i. v& Orand-dynamic
2 M b( p5 d" _1 L! o]
/ ~1 [ w/ U. {9 j2 ]! V$ J2 p2 w* x4 y9 w$ Q" V, @
turtles-own[
( ?1 a/ ?4 @2 Y4 P: ltrade-record-all
* w' b5 w9 B k! S7 U;;a list of lists,由trade-record-one组成
) _- P8 F: @& \( C; h- @trade-record-one
# ^$ N, O3 a7 H: U, _" F;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
, F5 a/ r) {6 w4 M( h5 a1 j* v& q' ~' s# ]: U
;;[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]]
/ v- J: H* s4 w5 \8 |! l' Otrade-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]
+ x/ X o5 b# 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
: b1 t1 c a2 s2 n. D3 w1 Vneighbor-total& w+ W5 o7 N; B S' V/ Y$ i
;;记录该turtle的邻居节点的数目: ^' ?! G0 q$ U
trade-time
\" O4 z8 w/ P;;当前发生交易的turtle的交易时间
7 B- |# V& x2 o$ C/ @appraise-give
9 { k1 I A6 o* O;;当前发生交易时给出的评价0 R, ], Z% K* V* T
appraise-receive
$ ~+ ~. p4 M5 }% x& s5 P;;当前发生交易时收到的评价5 H( S" {% D& u8 Z+ M3 l6 l& x
appraise-time1 W4 J, b* P2 {5 l8 C* h" R) d* m$ @
;;当前发生交易时的评价时间& ^5 v p% j$ a. n0 @' S6 x
local-reputation-now;;此次交易后相对于对方turtle的局部声誉4 h/ r1 m% f7 P1 e
trade-times-total
# |& l5 }; V8 [* F3 D2 g;;与当前turtle的交易总次数' A. `' J. _# }. y% ^( v
trade-money-total' C5 d) x, m' T. ~- A/ m
;;与当前turtle的交易总金额0 H/ ~( L) }/ e3 k" d
local-reputation
, x+ }% m K: D+ N3 Zglobal-reputation/ k: [8 h8 K+ ?% T# W1 L
credibility
) T; h. d5 N; ?9 V- |- {/ ^) a;;评价可信度,每次交易后都需要更新
& p2 y# k4 R, W- g( |* M; Qcredibility-all$ R5 Y0 Q4 B( a! Z) q; W
;;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& e1 L+ t. F" E$ F% t& @
+ y, ^: B& }7 ]4 }6 {/ 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
8 b% D' T0 v: {6 Bcredibility-one
2 q3 D0 N. E( f3 s( 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2 F' d, e1 i9 z' f
global-proportion
+ M" l/ R9 J% J) U* \$ P1 Acustomer. z5 X" l5 }, n5 L
customer-no
q* ?: ]4 j: x( itrust-ok' m/ f, E- m) j# o- P
trade-record-one-len;;trade-record-one的长度 P- g. i' f! b7 u+ O
]0 v0 L9 g5 v: H$ B
$ k, l. D" \. {;;setup procedure+ s2 k+ \, H" ]$ D
& p& X! c7 C3 Dto setup6 }0 Z" ?1 A1 P; U* b+ E1 Z( y( U
$ ~2 X# E( o: B" f. h' Z1 Sca$ c3 S6 a( Z P# a1 b
) U, t$ n# w1 Z5 n1 Pinitialize-settings5 f8 X1 T; S" M4 F! R- p- \/ _9 a
3 ]8 e: a) V: g; v6 S& Z
crt people [setup-turtles]1 a+ g) _; X, O( O. M* ?
# w4 E1 X2 q* k+ i x
reset-timer) v3 d; y" l7 }0 t/ i
7 {, B! a9 U) |- g) k
poll-class
_" S+ I4 Y- C* Q, g+ q4 f* r
1 X% `! g) Z. ~& Z3 q* Tsetup-plots
% y# E6 X/ A% N( A! ^( F6 Z2 L8 ~( k2 F/ t
do-plots) w$ v2 l: h" x* P7 p8 s; c8 j
end0 D6 E( T I9 J' q3 r& K
. {) r$ w! o# }% ? ~" \# P
to initialize-settings
V+ V8 t( X S' n2 i2 i( O& M5 {* j6 `( @. k" j) U' L
set global-reputation-list []
& u9 Y0 t9 z- b2 Y$ ] L: R- s# X7 }# C
set credibility-list n-values people [0.5]
8 u& r. p- c/ _, k9 b R( E+ c
. L4 ^4 ]1 ~7 u E) T2 _1 eset honest-service 0) e) _! t* \% Q5 G' ]( P
$ F1 K. [8 y! T3 c; A
set unhonest-service 0
# F8 @5 n! |8 o( }( J j5 c5 K S2 ?
set oscillation 01 g8 b/ {0 B3 h2 X J# M
. G% ?: X7 Y5 d" e3 Vset rand-dynamic 00 ~( p7 k$ x# S& o/ X
end
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to setup-turtles
- \% S+ Q, Z3 u" [8 dset shape "person"! n1 z2 J! b$ K9 j) R: I% T$ B
setxy random-xcor random-ycor
. ^( H2 p, G) M. P+ Vset trade-record-one []
2 z" s/ b7 q9 n" E
$ x) @' O3 [2 I( _2 Yset trade-record-all n-values people [(list (? + 1) 0 0)]
: [* @* }, j# o L9 z5 P$ o/ U$ h. m" I% @1 d
set trade-record-current []0 c% c! ^' _4 {+ W" N# I/ |
set credibility-receive []. F" v! _! j: ^0 n3 y0 @8 y
set local-reputation 0.5% i3 U5 t( c0 Q/ |2 X
set neighbor-total 0# o4 E9 j5 U+ X( ` o- i
set trade-times-total 0/ ^7 `2 H; P, Q, A* x6 U
set trade-money-total 0; c5 B: `, [( e2 B7 B) ^) J: w' |
set customer nobody
6 |, j( P% S. f3 g \/ j) rset credibility-all n-values people [creat-credibility]
' D" i' U, g4 ^set credibility n-values people [-1] P+ M+ Z- y' a f, \
get-color! F* [3 [2 H8 M/ d3 [
9 F: S+ _. {" Jend
: P& @( ?! V+ m8 Y3 [
* d- r8 n |1 ^. s% H# |$ M0 P9 qto-report creat-credibility
4 u3 j9 f4 M0 N) c; p. |( D6 oreport n-values people [0.5]
& E* m0 j) b0 S0 g; t5 k( [end: B$ z7 K9 ^! o& c' {
+ e+ H9 p4 o0 b4 @( T2 Y
to setup-plots8 l) _3 h% t R( N, u& f6 }9 z
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set xmax 30
% o4 |1 a5 E7 R" v, ]8 M8 Z. [8 l. E
set ymax 1.0
8 d2 j @; f) ]* k! M% |" b& t" V9 S) \3 \7 W
clear-all-plots/ t' f3 \- @- P, s z" G4 k
$ d x, s1 }, d0 ]: T
setup-plot1
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% {* ]/ s; A& dsetup-plot2 L- K" q7 j: O( a6 t2 P: A. P
/ w2 W7 K; C( I4 Q, w2 {/ Esetup-plot3
, ~2 |' N+ P9 l5 {3 P& T. Wend- M0 T) z( \$ F* E
' z1 M: v. m f# F2 L8 e
;;run time procedures
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to go/ j0 Y* V* v9 G& N6 `' u
& A( B/ N2 C* M3 d) P: F( |
ask turtles [do-business]
' K8 p3 Z8 H; F5 ^end3 [+ P6 v# ?' @: |! r& H- s
7 G5 Q3 Y @, n6 d& P# z- E
to do-business + ^" b1 O i/ y
& r" w+ d. q) _1 F# i: w# q, N
9 W9 \4 t7 \1 x0 c, ^5 v$ b
rt random 360& m* A E/ \3 m# p8 o1 V
' c0 j' _. w% D
fd 19 J8 y$ }: S. g3 g* q
/ i& x% A- ~$ _1 B; |ifelse(other turtles-here != nobody)[# S" d' }7 r* [9 z, H
: z' C; J1 m/ ?! G' h/ ^; Xset customer one-of other turtles-here, C4 H/ K! w# @, `/ h
. X% F) z9 L: G; b' @& `, ^. Q3 o/ S;; set [customer] of customer myself6 U! p) p# f/ z' X
( u- F: h) Z4 @" c) N3 n, U) Wset [trade-record-one] of self item (([who] of customer) - 1)
/ M0 B! K- D2 y1 g) F[trade-record-all]of self
( W9 J& l9 r% T5 f( i;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
0 z4 V9 ^6 {& y% X8 V T6 t) Q H3 @; t1 P' _4 p+ ]# ?
set [trade-record-one] of customer item (([who] of self) - 1); I7 U' Q& {7 j
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
, B9 K" }" Z( F7 ?
% s9 f/ S6 q9 I4 ~9 Qset trade-record-current( list (timer) (random money-upper-limit))# }: ], ~- b% b: z- g
* z4 Y" P& j7 p: i$ q( Eask self [do-trust]
6 n; X) f2 z+ K, }5 |5 t;;先求i对j的信任度
) c# Y( b; j- I1 l( x
6 l8 f# V7 O6 L- Rif ([trust-ok] of self)
9 G* x; j9 e! x/ m; E' l) p;;根据i对j的信任度来决定是否与j进行交易[" ~+ q' Z$ s6 F& j0 v4 X1 N7 R1 G
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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" f+ M, x6 {: `[
8 n% A1 D( d& d4 D4 |
& z1 K5 x7 N' V3 d% f# E/ s; O) ddo-trade
/ d1 r( t; q" R4 p5 O0 f! N' Y; ^4 a0 }, L" |; s" ~, W0 l: T) B9 O/ E
update-credibility-ijl
( X+ X1 u2 t% T% D, j) z6 F: v* _9 _( `& O8 |8 B- O
update-credibility-list: N, g! J* D$ { H6 i1 U7 t7 h5 R) n
" L1 Z' Q: Y" k1 Y- r
9 E) ?) Q3 k' _8 N2 \update-global-reputation-list# m+ d& ?) }& }+ G# h( N
, f0 \3 ?6 v9 h4 y8 q% ^poll-class
3 S( c- }" m b$ G, Y$ @- f0 H1 D% z n) {) E% n. q' i
get-color. l) N- t ?5 x
4 A* l2 b0 v7 q& l$ @
]]
/ D# C' A& ?; f, I# @# `0 T) S9 K
;;如果所得的信任度满足条件,则进行交易
. k+ T+ Y; N! W2 G1 {9 J$ r4 C
( P& Y4 v5 U {[
8 e' ^" Y) P! |/ O6 C- U- P, A6 w' A0 r
rt random 3604 U& |1 E! K% i3 }- ^& Z
2 y( X* Z& a% B5 Ifd 1
8 D% A" K$ O: b" j, y) e; g# e! J- i: g( l0 `9 i* D8 R
]0 E) S C7 `2 M3 A' `0 m& _
: _- L; g0 W" r$ l( Y3 H
end* B8 h9 a l( q3 P7 i5 w+ z+ ~
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to do-trust 3 p$ `, m( D# ?' h3 N) f
set trust-ok False! q7 W- S* z2 P% d; S; M- |
' N5 N0 \. L2 x: f8 E5 n* W& j: V e i5 R; @8 E
let max-trade-times 0
8 r8 Y7 e5 [- q! B2 J. |; uforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]* {. ~; f" r5 d/ M8 s+ F6 c! o5 q
let max-trade-money 02 H$ y r5 Q5 t1 [) D c* P7 x
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) u3 j1 C- o! w# T6 U
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
- K2 ]# N9 y- W2 P0 _
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get-global-proportion
9 T" o2 k7 r0 A% M7 k9 flet trust-value
. U |- D; U5 j2 ?$ Wlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list) P% V& D5 p! k( }
if(trust-value > trade-trust-value)
6 _' S& d0 n3 ]0 o' P: ~$ R. x[set trust-ok true]
6 K2 \2 T% g; @end
( W2 W3 G$ C d7 W( Q6 u4 f# [8 R4 o; @4 x+ `% Z7 H5 p, f) R
to get-global-proportion
: A# K. _/ D2 lifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
7 H M c M8 B% C9 c[set global-proportion 0]
% P( b+ d1 `+ L2 Q$ ^( b" {; x) U! E[let i 0
5 W& c: c6 `' X q6 Elet sum-money 09 J; }9 L& h1 b# W
while[ i < people]
( L# M8 n& n- i2 a' H# `[6 B. K6 |* W) P! g9 K! D
if( length (item i
, A- V+ y' k/ c' M4 [: X- @[trade-record-all] of customer) > 3 )
^9 e. v$ z+ Y9 p8 k% j[8 `# r$ d0 J: X
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))! c8 w9 u$ k& R& ~1 e( V0 J/ m9 q3 j
]2 v. e. |6 k* S
]
5 q3 L$ L1 V0 y1 Y( y7 Xlet j 0
' a6 a$ k M3 D8 r# Ylet note 0
6 a6 f, M8 P8 z& owhile[ j < people]* q2 K) {! i" A. o# ]$ j
[5 R$ j& s: D0 l; b& W) i# r0 H
if( length (item i \6 A* g' s# Z8 r
[trade-record-all] of customer) > 3 )
% ?( M$ B" I6 m4 b/ n& @, ][
! K3 r! x& r$ l9 n/ T: Sifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)+ @" M' x0 c: C6 M' m9 S% L7 t
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
- U. T% h% E0 s$ ]+ a) y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]3 d( h0 D/ t8 o3 ^# i# _9 Q
]
8 W4 k# G6 f1 J1 []" {! ~! M2 Z4 A$ @/ F) _
set global-proportion note+ s' K) H6 v- e, r9 S1 [. ]8 m7 @
]
2 T1 W- U3 [3 ?0 ]. d" Xend5 G* m# t) u& |. N! F3 W: w3 K
4 y) ~: ]$ p q/ G' `$ Xto do-trade
0 M* [" f* e9 @% `;;这个过程实际上是给双方作出评价的过程5 y/ r& a2 G1 D
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价. ^3 q$ c \: p. q8 i
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价3 T" e7 J' r* X7 Q+ a; n/ E% W
set trade-record-current lput(timer) trade-record-current
$ T! V, K2 P! t;;评价时间
3 _, U& x2 M, ?* P, t, P1 V& |& Oask myself [0 [4 H" c: q/ \7 N) X
update-local-reputation1 Y9 m1 N4 T% f8 A* i$ @$ B% M
set trade-record-current lput([local-reputation] of myself) trade-record-current1 V! \9 p3 P* P7 G2 ?# G) h: \0 V, R/ M
]
/ q4 k2 F. `- u. C4 F4 Aset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself3 \' `, }" g( h3 z9 a9 S
;;将此次交易的记录加入到trade-record-one中* u( x* K3 o$ a; X& v
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
Z* q6 l* l2 R6 N4 O$ Ulet note (item 2 trade-record-current )+ |- ~* t! |4 U
set trade-record-current* Z6 F$ h! v: b' L2 O7 K! I. i
(replace-item 2 trade-record-current (item 3 trade-record-current))! G" C# L' }, `9 i' m; f0 i
set trade-record-current
( h, S, Y% l: k9 u W# t. V4 w2 q9 p(replace-item 3 trade-record-current note)/ `& v; T! m+ P9 R0 ?% M
; x1 E, ^, ` R5 b( A$ o+ z
# J5 P& x' Y7 P+ e' C& e7 c
ask customer [$ n' @: J1 {9 _' }- v
update-local-reputation
# x1 I$ s, [0 P; o# @* K5 y- X5 }& Iset trade-record-current
6 M8 F1 @1 q: Y2 F' S( a(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) c H' @$ B; I( l- D
]
3 p& d8 d6 z! i! z `* W/ B" k9 A4 @5 D# M! d$ N
3 M; Q+ S% [: i% l: l, \6 Bset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
3 D7 v0 |) A' w& Q% G
# s, J' q$ M1 aset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
$ Y5 E/ J* k0 p# a. {( ^' I5 y# f* w+ ^;;将此次交易的记录加入到customer的trade-record-all中2 T: c+ V" p0 Z% c0 O
end
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to update-local-reputation2 d# O- o) q# p% U8 s* H0 R
set [trade-record-one-len] of myself length [trade-record-one] of myself
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;;if [trade-record-one-len] of myself > 3
/ B0 N& c& X* O/ G) S) I Nupdate-neighbor-total
6 Z2 m3 ^# S2 Y- l: r1 D8 N" m, e! f8 D;;更新邻居节点的数目,在此进行) T# c% I6 l& J- x
let i 37 O8 \& C+ j$ j
let sum-time 0/ X, I8 }4 p2 |7 S8 ^+ C# m
while[i < [trade-record-one-len] of myself]) d( }; X; m. ~. P3 Z
[/ w( I! Y- C5 y5 |
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )! _$ L: C _. H7 |. I3 B' n
set i3 W' E) R. g4 k' J
( i + 1)
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5 Y; L* v' c8 [8 z. vlet j 3" Q! n* ~! u6 e+ I3 V- q1 c/ R2 } S
let sum-money 0
# [) D) ?. L8 `/ @1 |( Awhile[j < [trade-record-one-len] of myself]
* {! Z$ }7 b% C; O+ g4 F3 i4 Y[, g) y7 `! q+ o
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)
. k' q" O5 y) R/ I' B0 uset j0 u/ O( b+ V& u! R9 a4 F8 z
( j + 1)! R. a" N' N% _' E9 Y; q! [" L' g1 R
]
3 z+ z! C Q N$ d" W! Klet k 3
\, z+ Z, a2 F1 _4 F/ Qlet power 06 d! T+ n7 V* u1 s8 {
let local 01 ?; v8 }; k% P6 Z
while [k <[trade-record-one-len] of myself]* S C5 M) u. w
[8 b b3 \4 i6 Y( W' ^; o
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) 8 [# ^) C7 L% H" n Z& H
set k (k + 1)
+ t2 z' r% V+ o/ ^( g+ U/ F]% C' k( ]& D) F
set [local-reputation] of myself (local)
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2 E1 [( B; G0 _ c/ r9 K
to update-neighbor-total
: v+ r6 I5 b' l% W
$ J/ J# ^1 g% ^0 `0 |if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]/ `' n8 Q! ^; O* K9 b
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end2 v4 U K: L" G7 a5 y
4 m) A- q y) E
to update-credibility-ijl 4 V: t% b0 n4 M
7 |2 C8 X- a0 a" a h# F1 o' ~, o
;;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。
: Z% o2 e+ w# C$ ~! K9 Q5 Clet l 0$ z- ~- {/ }- R6 {! L: n
while[ l < people ]
1 Y" _0 L8 M6 `" o e;;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. f7 u P7 Q+ K, b+ V
[
4 R6 _* y; s8 _; K b) Y) J( Glet trade-record-one-j-l-len length item l ([trade-record-all] of customer)8 I& G4 g4 }. D* k+ f8 u
if (trade-record-one-j-l-len > 3)
( `/ V( M( m, O) }& G! T; q[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$ t, C+ m& p6 N' B4 ^. Y
let i 3. y, P3 |. j; t* t, M; `
let sum-time 09 i( ~! e" {# {/ e: j2 X
while[i < trade-record-one-len]
, H) `% T7 Y }5 }& ], c, J[
+ \$ `) R/ } C. W& @" C, Wset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )$ e+ P- P5 k6 d8 J9 p2 n
set i" a- o% z' C" W3 `/ y" y
( i + 1)
% |4 n$ ~) B1 u R) V3 r]
2 j* \% X8 c& e9 V. S* ^! d7 d9 jlet credibility-i-j-l 05 _2 F; E& M& f4 K
;;i评价(j对jl的评价)/ ?. @; h/ }+ @& g( k
let j 3
1 S) }% g0 l& Y0 r9 t$ y7 Ilet k 4
) c( k& T6 u5 ^! z2 e( swhile[j < trade-record-one-len]7 k2 q) [0 w+ o1 V6 X0 H
[* V7 o6 Q+ g! N8 n. @) n" I- Z
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
9 r8 m) D. v5 C Tset 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 J8 J" O: m1 D/ K( d2 Fset j5 P* a$ e9 E8 Q+ r4 b: _
( j + 1) {. l, `6 T7 K* W- S9 M
], ^2 W) U9 d4 a8 ^' P5 B
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 ))
% |& D" M/ R, k3 B" m5 a% O6 `# K+ {8 U ^& q* S
' x6 T- p9 z& }( P
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ l6 X$ p; Y& B/ a9 W8 n8 t) M' v0 O;;及时更新i对l的评价质量的评价
) J' P6 \8 x* S, Nset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
. s! }, N: t4 Y5 c& U" cset l (l + 1)* K' l" r6 s- W# T- |
]- R9 u9 L0 L3 j& P% ]0 k3 c
end4 n* g+ J/ q7 F) \0 w
& u6 Y' w9 a& Q* _3 R9 Nto update-credibility-list
: o8 n; b' B- ^% W: Q# J9 flet i 0' d3 W$ f% N1 h, W! r7 E; \
while[i < people]! b7 O& O2 `* @5 L0 n. V
[
* B: V* J! ]1 Q5 P. ^) Q" d0 glet j 0# S! O3 z# G7 G" A+ @3 E; q% ^
let note 0' ^6 t2 w, G2 B- u$ _1 i# P
let k 0
; R6 a) e2 `. {% o+ {;;计作出过评价的邻居节点的数目
: W. S0 I! c. k8 q5 y/ E. ~$ }6 g+ fwhile[j < people]
: e9 w+ F% x S8 }[
% g1 d3 g" w3 {$ [1 t" ~if (item j( [credibility] of turtle (i + 1)) != -1)3 b b- M+ C) w4 @2 [
;;判断是否给本turtle的评价质量做出过评价的节点
5 N/ R+ n% y- x1 {. L5 Z[set note (note + item j ([credibility]of turtle (i + 1)))6 |, I5 k3 e6 ]
;;*(exp (-(people - 2)))/(people - 2))]% b5 [: Q l) d9 |
set k (k + 1)- X4 m2 O- T6 k/ v3 X
]
9 D& M9 t" f8 \- ]set j (j + 1)3 i+ f" Z; q6 {
]6 p: P: l4 Y8 R- j
set note (note *(exp (- (1 / k)))/ k)( e( _* W1 V9 U8 {. R$ b
set credibility-list (replace-item i credibility-list note)6 Q" g$ J* N3 i2 J8 L
set i (i + 1)
6 V+ F2 N/ E0 M* R2 v: x]
. H1 R$ `3 P" b) \& o! q# ? Gend, K; l& \+ T% M% g9 {7 u
! W1 w* X: W# X8 e1 Cto update-global-reputation-list9 u5 o- ]! U7 K3 q$ J
let j 0
9 s/ d* s( T2 }+ Ewhile[j < people]" {1 @4 z, v; a4 b9 J
[; C" |% ]$ h( O
let new 0
1 U/ m- h5 O* b7 m;;暂存新的一个全局声誉* S2 M8 v) q$ C% Q* `
let i 07 Z; d1 E; K2 x; T! P) f
let sum-money 0
% x, C" A& x- K- v# T) s5 Tlet credibility-money 0
* @' v$ ~8 [0 E- r4 N; mwhile [i < people]
3 x$ N% z3 @( e# t {[+ ]: p( O1 u# J3 O0 S
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
0 ]) p: T2 C* N) g; mset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
: t1 W' l4 k4 j) z2 q" jset i (i + 1). r8 Z3 _/ C( ^8 n. r9 n# {( `
]
/ X5 Q( J1 q) {* f3 S6 wlet k 05 T% q& A# W# ?4 `8 l
let new1 0+ ` y# y b4 J1 E- D3 q4 I
while [k < people]
* W) I, \) L; V0 z6 a[
6 @$ S5 T3 d/ c7 i* w4 i [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)8 w; G, ?& I1 T A
set k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * z0 ]! X) {0 {2 O0 s( V
set global-reputation-list (replace-item j global-reputation-list new)$ H/ V' x' e% M. B" l
set j (j + 1)$ e5 J% k% Q0 j8 P2 D; i0 C1 @( ]6 ^
]9 N' U. C9 e# s
end
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" o/ x _0 G8 e c5 ]" G5 }" C& c
; E1 h2 Y- O9 T, Q; Dto get-color6 E6 v2 r! j) X
' L/ P% g: U5 q6 a0 p# Zset color blue( E/ s/ f+ R; v" G* t3 c9 Y7 L
end3 _7 X: k; W& e
/ G" ?, f6 `5 W2 P$ Eto poll-class
2 ~' |* b" y4 G0 X6 oend- N! _) H5 q2 ]& W; E
3 z! ?, p2 ^7 V* v9 s- ?, yto setup-plot1
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set-current-plot "Trends-of-Local-reputation"! x; ~) t+ X& x1 b
1 f+ j8 L9 |" w2 e( W, \$ }( k& W
set-plot-x-range 0 xmax' [; J c( }1 q5 A3 b& W
! e* M5 @% V* e
set-plot-y-range 0.0 ymax7 v: a2 `- m, z9 v
end) H5 N8 I5 f0 T' W: d
% s" T. Q( D* _. W7 |% Q4 w8 Nto setup-plot2
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$ I- c w& z: Lset-current-plot "Trends-of-global-reputation"
& V# o' n) D" J9 g2 U M! P$ y& W4 {2 z& E( L- E2 [1 v0 C
set-plot-x-range 0 xmax+ |7 x( ]- z c* Z
7 x T* v# z+ [, E# X ^, Aset-plot-y-range 0.0 ymax$ a* w) w2 c8 M( O9 o
end5 e" h; W9 X, `) p+ r
& c1 R6 E# [ b% k) ?
to setup-plot3. [5 j2 I# d/ ] l( K
# P8 w; L& ^7 @: |9 D. O
set-current-plot "Trends-of-credibility"
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: V% U& A2 I/ t% e$ Kset-plot-x-range 0 xmax
! ~# z6 U" z O$ `8 ^" H4 h2 ]
7 L/ @3 x$ D8 s! k3 F9 H% L, [3 _set-plot-y-range 0.0 ymax
% k6 D. k% g/ ~: d1 ~end6 l, M. _" D8 ~5 j% }. s. o
- A& }* A& x- {$ s' w" _( O7 dto do-plots p: @! W6 j4 k2 \/ z: K
set-current-plot "Trends-of-Local-reputation"7 @9 B1 J6 c( B- W+ O
set-current-plot-pen "Honest service"' x1 {. _9 A2 D8 _2 C+ I" ]
end
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/ C' F1 ]- ?/ Y* Q- J[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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