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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2 M6 k7 T2 [6 u. D4 C6 J% e3 Y
globals[- R# A7 l6 v9 z
xmax: ]8 |/ n f' T' j; ^
ymax
, c$ A: G0 x4 y* W$ k i# F& zglobal-reputation-list
4 X2 m+ F$ ]8 n7 Z9 Q1 a0 I* u# R7 {: w; \* B( A* A5 P
;;每一个turtle的全局声誉都存在此LIST中6 w. R% E( K d2 F; b( l
credibility-list! E1 B& z- b9 q# V, Z& z
;;每一个turtle的评价可信度
3 \6 x+ C6 F9 {) s1 ~" J4 \honest-service/ x" B$ o* ^2 f- X( ]
unhonest-service
9 G6 K% M* \9 d1 U H- F, C0 ^oscillation
7 Q1 \2 }4 u4 m# f$ rrand-dynamic# o h1 L! U! g5 b
]; U5 m4 z C, P0 ^
5 S8 z& U# x" @, r, r0 Yturtles-own[* c1 Y; h: t( r. w9 M2 h; m) K$ D
trade-record-all9 o1 l& j3 U& ^
;;a list of lists,由trade-record-one组成
% p1 p* w; K! ~' Htrade-record-one
2 ?8 }- m8 w5 ^; a;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
( U, n3 U7 }( R; l0 f7 M5 |$ N# [/ ?+ j2 W* o1 _
;;[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]]. ~. d& f( d" p$ P8 m! e
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]
D6 L- d/ j1 N4 `3 I* I5 [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% t4 Z }3 p7 I- m2 z) _
neighbor-total& @5 z6 a! S. H# n- S5 {
;;记录该turtle的邻居节点的数目1 ]# X" D o# v7 L7 c0 h) v9 e9 b
trade-time
9 O5 |4 m4 z% J0 i2 G3 b" F0 N7 b;;当前发生交易的turtle的交易时间
5 N/ S% r @+ z9 rappraise-give4 Q( J3 S3 ^8 @2 O) ?
;;当前发生交易时给出的评价
* g, ^3 h5 I! r5 |* L, N5 Iappraise-receive
3 K. t) L+ @- |# f8 c;;当前发生交易时收到的评价* _, V6 O' D" V/ |7 |( A: R
appraise-time$ i6 E2 @2 o" t+ t( v- t, o1 ^
;;当前发生交易时的评价时间1 b' O3 P$ t) {/ i z o
local-reputation-now;;此次交易后相对于对方turtle的局部声誉3 _8 c' v& h# }
trade-times-total& e# R4 m2 ]: P+ \$ }
;;与当前turtle的交易总次数
# p6 S" h$ Q$ C+ L) r) b2 O/ o ytrade-money-total4 m! R: i* B$ P* A
;;与当前turtle的交易总金额9 e3 `3 V+ I$ U$ [8 i
local-reputation
7 H6 W; n) F7 Z$ c+ ^global-reputation0 g$ Z- q' W( W
credibility
/ p7 N# H: u7 [% a;;评价可信度,每次交易后都需要更新1 K4 E! v0 k& }3 ]
credibility-all" \# b' `+ f" h5 ?( z% ? k
;;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
1 Z/ O) d+ | I1 h1 O _* h) p! d0 }: C, T. O
;;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0.59 @; q# \0 M. O8 C
credibility-one
4 D I. _" m* o. n" ^8 j;;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: X9 H9 F* a( o" X
global-proportion6 P5 p/ F6 C9 X/ ^9 H
customer" X% p }( I: @- g0 g# d
customer-no
1 u, w" I2 Z: T' p' }% U7 |8 itrust-ok
+ d5 r6 y8 ~ H9 { [1 |trade-record-one-len;;trade-record-one的长度
2 Q0 c) Q1 P) |9 x$ v1 s]
, |2 V, F$ J3 H. c1 N' ?$ E
# z: G9 r! j, m;;setup procedure& |- t7 k( Z. s# q9 _% S6 G
( w. n. ?4 d5 o! K" a2 D- I, q
to setup
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' ]( K; R C6 ~3 ~# Y( r2 A( Oca
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! h8 i) b8 K: A p8 finitialize-settings4 h) J# ~1 A6 e( E: o8 L% q
! X; L+ R. Q) ~+ S
crt people [setup-turtles]
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reset-timer; R% p! G4 p# w* @9 ?
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poll-class
' ]! r$ {% e b, S
9 \! E. G6 x! O, s) g8 h n* Osetup-plots) e- x3 }; f. x j: f
2 F$ O/ J k8 a8 D
do-plots* ]# F2 Q1 D( [8 r/ U% @0 X5 F
end& F5 h# ]' F) o
7 w- g9 \7 t$ @5 tto initialize-settings& F: T7 l4 }0 R9 h0 D; |3 O' o" J
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set global-reputation-list []7 J: f: | @ z$ K( ^
' ^ C, u" N7 s
set credibility-list n-values people [0.5]; X7 q- ~, P5 o
7 f( Q/ h* X0 k" D ^7 B
set honest-service 0- {; K! j' s# N" I& B9 e$ Q1 p
! J% d9 i" y; `
set unhonest-service 0! L+ C: s1 J5 A9 {. R8 M
' U% E8 k h* C- u+ O
set oscillation 0( w' _0 t" ~+ R- Y2 L" Y
" y. Y1 j: F% ^! Q2 A/ R& `) hset rand-dynamic 0! k& `9 [. C( u) ^2 @3 D' i
end, v; ~7 f2 K* A7 x
1 ^! Y8 b% y' H! q. {
to setup-turtles / @; q# f- E7 O6 u, C5 n8 [
set shape "person"
" U1 d: }7 h$ F6 O! I& Zsetxy random-xcor random-ycor
0 h4 N/ ]3 D) [4 Eset trade-record-one []1 G, a& A& X$ q' k
/ H i+ t9 z) g; M+ Dset trade-record-all n-values people [(list (? + 1) 0 0)]
5 b! {5 x' R4 Y( |$ X8 ~& D1 ~
4 P) z, Z- P; m- d4 zset trade-record-current []8 Q: j$ K. Z- @- g
set credibility-receive [] k" P! _/ J1 H/ O, F
set local-reputation 0.5
; I L: h2 r1 s# u5 s- ^9 Lset neighbor-total 0
( Y, H3 v8 _. D: dset trade-times-total 0
7 t, |* q/ C( k8 A* Cset trade-money-total 03 H: Y$ f* o) H, U1 v' B- h
set customer nobody9 z9 [5 N. U1 l: p! b0 V8 r- c
set credibility-all n-values people [creat-credibility]
" C& H m$ e3 ^9 f7 w+ [, \& Z/ lset credibility n-values people [-1]
* x1 d, ~" B7 W, n( t8 t0 k mget-color* t% f$ h1 q( C
* N" ~& H" ~ [1 ?$ ^
end
& L( a O2 [& ~( G- X0 `, n0 g2 Z
( V5 I5 `, _+ q" M3 `to-report creat-credibility, \6 R8 J# `) K$ q( s' S+ T
report n-values people [0.5]
, D" m4 V: e+ x8 `( g) j; C2 Send
9 ?8 a$ N" ?: c4 J
2 Q y% K S( I9 sto setup-plots
8 I8 w; C {& d' V: }
) t, t5 ^" d8 R& z6 F, |: G6 J2 U; [set xmax 30
: b' ^9 T5 U& I. `6 L
, ?5 C/ g# \" @5 I5 F J3 c$ I4 mset ymax 1.0
* p" z. I; `" H+ L9 D V8 ^+ b# I- }! m
clear-all-plots- x$ ?" ~; x3 Z' z' D
4 c( a" }3 e2 z8 X- D( }' Y* usetup-plot1
7 K' G! C/ q5 v8 F/ j% x* n$ ]8 Z% C- j, h2 W
setup-plot2 P( O. o3 D' ]% b0 I+ k, N d
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setup-plot31 ? v4 i& l; R0 {0 {$ `
end* M. ?. \7 y: T/ _1 X9 c; @
( v% L$ q m9 R& o. d8 D8 p( Z;;run time procedures7 I% w; M# Q1 O- {
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to go" o% S6 S3 X5 b. i& D( h$ @
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ask turtles [do-business]
( p4 {: T; \) q/ V. r/ e3 S& J3 n2 eend/ B) W' ~ b* w6 k0 c( h4 B: D
/ \9 ~2 }# {& b1 K9 S2 wto do-business & h+ W1 m! A- R4 }2 i. W7 E8 R) {' x
- ]( M' o) v5 |/ E' W' W$ H. g# t/ S
rt random 360! p& a8 N; H( ^0 q
, ]& ?& K" c- h2 r- Dfd 1
0 B! S! {) }% c6 n$ _* [+ V
* F& u. F, q, l6 I/ Q4 U2 c) c! B1 uifelse(other turtles-here != nobody)[+ T; A- W, C z
- k$ K/ U) ?1 _( j6 F4 h) z) E! lset customer one-of other turtles-here+ M1 s6 o2 s1 l. B0 G" w* v
9 g* R4 s- u+ p4 F
;; set [customer] of customer myself* S, T. K- c0 E/ U# B: }' c
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set [trade-record-one] of self item (([who] of customer) - 1)
% q7 t$ N. ]% P8 Z[trade-record-all]of self
, n% l: t2 m' C0 K }# v;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self0 O+ H# `0 I, ~. f7 U; I
- Q( z$ K$ H v" A
set [trade-record-one] of customer item (([who] of self) - 1)# T# C; @6 j7 W/ a
[trade-record-all]of customer: W% i- w3 I) ?* f6 _
- C1 s6 m% ]9 Z7 X9 W. n' v. H& W
set [trade-record-one-len] of self length [trade-record-one] of self& k) `/ L; r* f% e- `. G4 f
$ t7 i$ i7 m" X) [
set trade-record-current( list (timer) (random money-upper-limit))
1 N+ T) d8 p# B5 z# m2 i& l& p5 y8 y: F' } Q& ?) k
ask self [do-trust], {$ y: T" @, |- K2 ?' d5 G# m* ^6 Z# c9 Y
;;先求i对j的信任度
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9 V, j' T1 R) B6 H) }2 t/ uif ([trust-ok] of self)
1 s: A* A. r2 V& W) _;;根据i对j的信任度来决定是否与j进行交易[& N- Y, `' q% e' B
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself% `( b7 q/ C: B4 `9 `& l% t
) Z, y5 ^' }/ b* @, E[; a- S' D! s+ D9 g, b8 g* z$ b
1 O V) H* e9 Q$ J; Tdo-trade
) }2 B" w: M3 B0 ]; r
- s" `% K) A; K( Wupdate-credibility-ijl! E# ?5 e# V0 s1 d
3 v; c. d' F: jupdate-credibility-list
7 {) l) k, R0 U) ^. G; x0 v% B, z. D/ [. B! E
& O+ }# p6 Q, `* M, t2 \
update-global-reputation-list
- @/ j( R" { j) Y$ K0 y* F
* G. v6 Y! ^9 ~& r7 P0 V$ Dpoll-class
# b$ l. j& h) ~& q) t, M; H0 b
get-color
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]]' Q7 I# n$ B/ M C+ ]
% W" t0 V9 T5 ^3 V6 g: ];;如果所得的信任度满足条件,则进行交易2 H! |% U: t8 C. O& s" J! w5 a5 J
7 D( ~& s0 ?. U: Y( e
[, G$ i' { j3 ]" ~$ J/ p
7 a1 ^" @+ c5 E) T6 q
rt random 360+ y% N3 Y* Q0 r) @6 g/ \4 g
7 `8 P% n1 A# r* ?1 C5 ofd 1
3 z( ~# ]6 B1 U4 u2 z% B+ z7 Y/ }" c! m! z' C* Z, P
]
c2 n$ a9 k! L- `7 e6 G5 L& i3 A
end4 A. g) A: o1 ?$ u; F
+ ~$ p* e9 C4 l/ s. [+ s, H
to do-trust 3 d7 |( O q# ~& c
set trust-ok False V2 N. W3 p/ ]4 r& f- G
$ Q4 W, }( \0 w& ^/ c: P" D( A$ k6 h/ |; r2 R3 }7 Y
let max-trade-times 0
) |! I( a5 I' a7 e* |; Sforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]* y% D h. D# k
let max-trade-money 0
9 ~; n7 R4 |* jforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
7 s* c4 H3 w/ R" K1 L3 nlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)), t! f+ D: n+ K, W1 n$ k
# m% m; T& c9 \
3 q! m& Y0 i% Z0 W( uget-global-proportion
( y* K4 I5 h. \: D* Q7 b% Q+ D0 ilet trust-value7 C+ G' \) @) F- k; @8 e4 b3 e. l
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)( f4 M9 u3 U/ B$ D- ^. \+ x" {0 r3 B
if(trust-value > trade-trust-value)1 h) M. M8 f2 ]% f
[set trust-ok true]+ b# P& G+ e" C- e4 d9 r6 u
end
1 r9 z0 Z/ L, }7 a* w/ c- [4 ^& m
( B' M8 A! F" s h9 E$ z `: xto get-global-proportion
+ E3 C1 \$ _% ^7 h/ Iifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
- d/ K2 H. B5 |4 J, w8 p[set global-proportion 0]9 _: k% @* a* N H- Y# D; P% K
[let i 0# X% u4 S( I1 M: s8 S+ | s
let sum-money 0! M, K9 d2 H$ V* q5 t5 X; `
while[ i < people]( W9 h# C8 P5 ^, k6 S# v; n" ~" v
[
* \; O# {/ K; G/ T% A$ \0 z: bif( length (item i8 I) Q% C \" t% f2 h
[trade-record-all] of customer) > 3 )
$ E6 V$ ~9 [& E$ L+ m[' [' k b( S# z
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)), A; T4 ~/ m* \3 Q6 Z
]9 [# d5 F/ B' n W
]
* ^3 k" z( k- V y5 Xlet j 0
( S1 x$ g6 E3 S# s$ v5 i1 L6 y2 Flet note 0- q! l8 R& f% ?, R; n+ \% H
while[ j < people]
0 }8 ~, b" w, g8 i/ N[
1 u+ [- e0 f m. M, h8 {if( length (item i
! W y2 z( k$ X' u[trade-record-all] of customer) > 3 )7 p W! s+ h5 Y9 l7 _, B6 p' E% ]( d
[$ T- V$ v8 {& S5 r
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)( m, P! j7 m0 ]5 s Y1 l+ j
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 R3 \! O* {' f5 |) S
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]" O* e9 L$ v3 T0 _/ ?
]
6 G; v9 ~4 e* Y' ^) j]+ t' N& @( B. d3 G5 x5 J
set global-proportion note7 j% k% U4 v2 `7 @; Q" Z( B
]
7 L& @ i. R( ^. W, Z A* ~end
: Y ]0 Z; u, p8 Y# L0 R+ ?$ g) p4 |3 H6 E( j' V
to do-trade
- V B2 t4 s" H;;这个过程实际上是给双方作出评价的过程
x+ S7 |0 a6 O: r$ F$ q) Tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价 n# D$ O+ n, }* o4 V7 \6 W
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
! y! i4 i6 N4 Q& n9 tset trade-record-current lput(timer) trade-record-current) d( s7 [2 u* r N) e6 E2 e
;;评价时间& d0 ?4 Z* Q/ A: ?- A- c7 b
ask myself [
5 I% T: ~& n+ o" aupdate-local-reputation
: @/ \8 U1 Z- vset trade-record-current lput([local-reputation] of myself) trade-record-current
& o% h$ e, x4 f! l3 U. B]
c4 z$ T' @' ^$ b" k5 \' tset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself% v, `: I! |3 Z- v
;;将此次交易的记录加入到trade-record-one中
: E3 C: P5 S+ G1 P3 Xset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
/ ?5 b1 {5 a7 \. b6 O. O5 U" }9 zlet note (item 2 trade-record-current ) q7 R; P+ g- Y/ s, g2 O
set trade-record-current( ?3 Q. q; {' {: I! D' N6 L' d4 h
(replace-item 2 trade-record-current (item 3 trade-record-current))
! ]% K! C6 `: r% ]! e Bset trade-record-current. N6 W( i5 {& |% i8 T
(replace-item 3 trade-record-current note)1 d& u- O7 T( w
& r0 L y2 o, X! V' h- p5 \, W9 ?5 K/ `# Z
ask customer [
2 ?* F, V) ^0 m/ u/ o0 K1 F5 \update-local-reputation
5 P, Z5 H3 l1 ^( [set trade-record-current# c$ F1 @6 ?7 b/ Y6 v# w* _
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 2 G, R* O& z2 ]" V: ~& W
]6 k& _, Q8 Z, P0 n' H
) L3 {, x5 [& l6 K
0 h4 x- e4 b! c% q; v- Dset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
j( W3 J+ @- V8 ?. a! k3 r% T# }+ x4 p0 |& b7 _
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
$ w. |. g9 D9 d/ [1 h$ C% e* L;;将此次交易的记录加入到customer的trade-record-all中5 e7 w' i$ ~; g) C9 H. }3 }
end
5 n# E4 Y# i, B! _: E4 s: a5 F( {! U$ z z
to update-local-reputation
3 f( B% J8 D* V6 |) y# O3 ^; M5 [; iset [trade-record-one-len] of myself length [trade-record-one] of myself
% ^) x/ H8 u7 r
8 G6 f- M' _0 R. L2 B! |( `9 u
2 m0 p$ q$ n5 K$ v, `2 l' E% ~# {;;if [trade-record-one-len] of myself > 3
/ L4 ]7 j# G4 _! Wupdate-neighbor-total/ s1 y$ E# I- z3 g
;;更新邻居节点的数目,在此进行
+ w; x6 ^- {- alet i 3
: H! N! u8 O* c s2 g" ?let sum-time 0+ P+ A, d) U" p
while[i < [trade-record-one-len] of myself]
F: e' d" b+ q" X8 E[
6 j7 R7 `4 ]# |+ o9 Wset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
* _; T- p, M2 S- Z- nset i D# M/ y( ?0 R/ g0 h( G& D9 _
( i + 1)
7 M) c+ J, A% Q, \9 l* _$ t]
6 p; s1 F: B% jlet j 3
+ H) k+ V- c& a3 ?4 G/ m! flet sum-money 0
; f) A+ R0 T) W& b3 [! u Owhile[j < [trade-record-one-len] of myself]
& c8 R9 A& A, [6 m- I" j. X2 l[
8 L# z, T3 S6 }" w. H) _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)
4 Z" A0 Y' w8 ]' s& Uset j
' I5 ^- X- u1 R. g. k1 T, z; t( j + 1)0 c" }$ M. B2 p8 x5 p6 t+ A8 p
]2 B3 i1 Z1 J+ T' ^- k5 {* t% I
let k 3
" f' j# u+ Z4 c& y4 G3 K2 U- u, ulet power 06 H( ^) b( s o( t5 c2 b, K
let local 0+ }- {, ?9 N4 L: z- m! n
while [k <[trade-record-one-len] of myself]
1 n4 h/ c6 n+ J* I- u* S$ T[
/ D% x% e) e6 c( W' ?- X m/ Bset 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)
6 E! v; k, y/ P6 Z) rset k (k + 1)
! L0 M# G. [# P* R) D. A2 P]9 x. m" d$ u$ P. R5 o: `+ U- ]
set [local-reputation] of myself (local)
3 B6 `6 D# n/ a1 _end
/ Y4 n/ ^* V& d: @; F
8 I& s+ @% Y- [; j! [) ito update-neighbor-total
2 h0 D# ^( T$ `7 y, u0 S: u4 z7 b0 U7 q
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]0 |. u7 d% j1 D
. ~* v; S! o$ C8 P. R8 X0 q5 s
, O( d6 ?: O, Y# j
end
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8 t7 P- G, G4 x3 J+ a+ Oto update-credibility-ijl - T5 Z. z! m) x* b# A# Y8 ~
% U8 }% R" O- `7 \9 i2 p;;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。- @, ` _- B- V) L8 t3 u0 Y
let l 02 ^: t) h# k) K
while[ l < people ]
6 Y: K1 t x3 ]4 G: Y2 `# J;;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 Y! [: x" |5 H[- l! l; w9 Q3 B0 C' x7 q
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
8 G; P% K/ i9 F3 ^if (trade-record-one-j-l-len > 3)$ m0 G# m9 w( N, v6 }- n2 i0 f
[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
/ s8 ~+ G) H, |" s# S2 v/ S, A* Tlet i 3
* D' d) F1 s* p1 mlet sum-time 0
$ C7 @6 y7 v: ~/ Mwhile[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )% O. _6 t) i% W9 @7 Q& n& w: x7 t
set i5 l' a' d: m3 _8 Z/ i
( i + 1)
& `+ n( W6 I5 W. y9 o]
' m- A) B* r' L$ K# llet credibility-i-j-l 06 {5 {9 f& h! g
;;i评价(j对jl的评价)
& {4 V% q( i0 Z+ A& q- r5 |1 ]& ?% Mlet j 3
5 x5 Q! ?* l1 M" q _7 t& i9 Plet k 40 [2 s* {' X- l! N! `- ?" F4 }
while[j < trade-record-one-len]# C, b" _) ?# P: F
[' i; ` F' j7 K1 m
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1 V0 }- F: Y: }) f. q4 h
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)
) r3 F' @. a5 o& \" @$ vset j
, e, D6 q& T0 V5 l4 r3 Z( j + 1)
; D. S- r; d& M: `+ X]$ J4 g- U6 d* e& R6 q9 f
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 )) ]& v9 E) ?, N# C
8 s1 y# ?+ h# C) X, s0 Q: f
( l' T$ e$ u& t! A" |( R- {& Klet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
0 s1 }! [2 g. q0 y' V' A% v;;及时更新i对l的评价质量的评价' [4 X- M# ]2 }7 U
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
! q5 x; @) p( Z; jset l (l + 1)- X, V( ?, n; R4 e4 S5 X
]
# y" {- Z; c: y6 R9 R' Wend
8 \ D: V" i' j: P% `! C) f: T+ F1 y, i4 f1 e3 s/ x3 j6 ]
to update-credibility-list% u9 f, c/ I4 G: M
let i 02 L" ]5 N" F8 U' q0 K
while[i < people]2 {& p, o- y6 Q1 D
[ `3 [5 l! U& g8 O2 t& Z
let j 0
$ L4 q9 u& A8 P! z0 \5 [7 t# K& \let note 0
" ?* E9 Q; u0 Zlet k 0
5 V+ q- }7 C. l% @8 k;;计作出过评价的邻居节点的数目* g0 s B) B0 J( _3 u0 o
while[j < people]" q# a( j5 c! x
[8 D! A0 f0 ~8 v# ]; n' Q0 }% K
if (item j( [credibility] of turtle (i + 1)) != -1)6 k( A6 C9 p9 t4 U& `
;;判断是否给本turtle的评价质量做出过评价的节点
' l' A. S/ F7 `( U" ?; A[set note (note + item j ([credibility]of turtle (i + 1)))
' U% q+ c2 \ z3 [) m% l' c;;*(exp (-(people - 2)))/(people - 2))], D- S9 J7 W$ f# C
set k (k + 1)
8 \! }: e% P% j) {' S) c]
$ }9 ^1 i0 K4 }( ]set j (j + 1)
" D2 V7 |7 K5 k$ M& N]
% Y+ X+ k1 ~ B7 vset note (note *(exp (- (1 / k)))/ k): S; F8 j" U! n
set credibility-list (replace-item i credibility-list note)
9 H. P8 b$ o, ^5 a$ ]6 k: i& iset i (i + 1), n: g% ~' m+ Z) { t
]
% ~+ W7 n! d* A& @" l$ P, ]end
: q' {1 m% U0 M# Y" @& C2 u8 } p0 d
to update-global-reputation-list! H2 `2 D& p& [. O! |/ a
let j 0
$ D+ j$ N: f3 m( X Qwhile[j < people]) ~% a" e5 F4 S/ U- T' F
[
% {1 ~9 Z- U, B/ B; ]- |let new 08 E( p+ E6 c. e! H% r
;;暂存新的一个全局声誉* V" P4 C( Y6 t; z4 `. w$ w% D
let i 0
9 w5 [: j% i4 z# h" glet sum-money 0* C& I/ c% I8 L i, U7 N7 y
let credibility-money 0
; q4 |6 v! I3 w* t4 ~8 kwhile [i < people]
+ Q) f3 _1 y) k2 i4 t( S; i[" S& ]2 Z6 z$ h/ I
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))): V. i; Q4 N" `, ?1 r( p5 Y" Y
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- L$ W& H* I* i* {2 m6 N
set i (i + 1)
' S& C8 y+ [6 G& z x]
- q. @* I! U, A. w# F0 Mlet k 0
' \. i% W) ?- L( G9 a( ]& D( vlet new1 0
4 o- [! b r( Cwhile [k < people]0 B# R3 T0 ~- r( j/ o% z$ E0 K
[
5 b1 ~4 T/ Z, w* I" t* Nset 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)
9 z. J0 W8 k0 p0 I/ B6 Kset k (k + 1)
0 p5 U- F: x' [6 B]# \" w+ n# Y0 J
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
* Y6 P! W; @" v2 d' I8 j& dset global-reputation-list (replace-item j global-reputation-list new)
# A ?) q; M2 z9 n& nset j (j + 1)
e! d( B- p3 i]
$ x& ~0 k A5 q) |. eend9 [- l$ V: h, S
5 I) H' c, e7 O* p' \; j3 T
: T3 k! \; @2 ?/ v3 a' ~* J/ M1 M9 N
to get-color% Y8 @3 R& Z+ ]9 D) f! H+ P" v ]
( {2 r' H# V+ \ W1 R0 I$ [$ Iset color blue
* |8 |- b( k! zend
* ]4 N+ M+ X8 _- ?8 [2 v0 r2 H/ f# _: ^- {2 r
to poll-class
) F' @# V3 y' T9 o( tend
* F& u# i* u2 m- O6 q! ~# r% d L& Z7 M2 W
to setup-plot1
( l0 [9 \2 ^, Z* V, E+ Q# a/ Q f) V$ R( n* b/ l; A
set-current-plot "Trends-of-Local-reputation", e- W6 _8 ^. M; M T y; Z
6 I9 b4 U0 ]8 O! W. H
set-plot-x-range 0 xmax
& C4 l' b) C; {5 W) W. \) D! _' a7 ?* S& c
set-plot-y-range 0.0 ymax
+ o; I9 M0 ^* a9 y: f: a9 |2 cend9 }+ ]& F7 S4 U& O# {( Y+ }
0 W& l2 L: p$ k* u- T0 s7 ^1 g
to setup-plot2! r6 ~! J$ V/ A/ Q: G3 M2 _
3 I7 f6 n3 @& b0 [; |& }8 `set-current-plot "Trends-of-global-reputation"5 P1 g( D9 O* y/ S
3 |3 Y3 [& a+ J: M) z8 R, K
set-plot-x-range 0 xmax" t! N1 j% K# i" U
9 j4 E ^2 \0 v+ `& Eset-plot-y-range 0.0 ymax7 }' B5 Q" D/ g9 ~/ n0 N/ G+ h
end
5 x/ a. F7 g0 C9 ^ R8 o0 ]
* ~ K% Q: U& s) W2 t \to setup-plot3
- t6 W. X- c+ p/ H
( ]1 I& P& s2 ?0 z# Q; j7 [set-current-plot "Trends-of-credibility"' u& ]4 s& y: v: b7 h
8 t; k5 a2 T# V' ~) w# ~
set-plot-x-range 0 xmax+ _1 ^3 M' z1 a: V
1 R5 j: ^0 _' i( i3 h
set-plot-y-range 0.0 ymax8 l7 X1 Z+ D: y& ~) J
end' I% P4 t) e2 w: r+ C
8 C' ]/ p' ]1 e3 j, I: x& q9 y1 ]to do-plots1 z. [5 _1 p3 M6 f- J/ T4 q
set-current-plot "Trends-of-Local-reputation"
6 E1 t u4 D8 X: }" k7 i7 mset-current-plot-pen "Honest service"
6 z8 S2 y3 @& I' N+ y2 f6 xend: ]/ h: s# I" l; _( G: E h" Y
/ n t- A& l5 z[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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