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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3 U; ]+ A2 r. l9 d- Q' [
globals[
3 u1 ^, F, ?; Y5 q3 H: {4 M" Bxmax8 K6 E' u+ T8 S2 B9 T3 D
ymax3 v5 X# ]: d. ? v1 w
global-reputation-list
; p+ w4 c+ L. a' u {
9 w9 [$ b1 S1 q) A/ f% @;;每一个turtle的全局声誉都存在此LIST中" ]$ [, p$ s9 n+ w$ W/ ~
credibility-list
- \$ a! T: W- z- w0 ?( G;;每一个turtle的评价可信度: I2 \" |' u) _3 y7 K! Z
honest-service# z) B) |7 }4 I' ]2 o2 f* W r
unhonest-service$ k# M6 j2 u* M7 d; L; H$ v+ d
oscillation
2 I S5 k3 A6 E% c ]rand-dynamic6 z u, T, I* o& {& i5 S
]+ U+ R7 |& {1 Z" f
3 V6 X4 ]" s1 N8 u0 c
turtles-own[
6 {1 T& c1 f2 V" \6 ~% A) z3 H0 i# Qtrade-record-all
: ~( e: g% |+ A0 P3 o# i( C+ l;;a list of lists,由trade-record-one组成) i, I6 a+ _4 z7 G8 X) l
trade-record-one
0 ~" G* w: E' u5 e4 _6 Y4 H;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
H. d% I) g3 g3 ^+ K3 a, C# s9 N5 p4 V3 q6 x' T& L! ^/ \) X! L% o
;;[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]]
. b% X' S) r6 {! ]# ltrade-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# m" F& T l5 K
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
f0 Z$ l/ a9 m9 N" p8 Q9 Y8 vneighbor-total+ c! s& I9 l% ]8 k
;;记录该turtle的邻居节点的数目
: D9 Q- E5 i0 [! u5 y& }% g( rtrade-time
" |& h: ]9 e. H3 ~ q;;当前发生交易的turtle的交易时间
7 v+ k2 O+ t* Z, ?* T0 V( qappraise-give
0 n2 ]& e5 n5 y) J, \0 o8 S;;当前发生交易时给出的评价
. T M/ d; |' r I G9 q2 vappraise-receive( c0 B% o' K' F' S) f
;;当前发生交易时收到的评价( G0 c ~( P' {4 z* ~! {" t9 o: S
appraise-time, a; ]- h2 i. t
;;当前发生交易时的评价时间3 S; Z q6 i; J
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
/ F5 u) u% p4 N: D$ u' I& Btrade-times-total8 I9 b4 E) Y- _2 ^- Z0 N
;;与当前turtle的交易总次数
/ ~, D" \5 k. v; I' |" W. otrade-money-total
4 J4 B) N- S2 }5 ?9 c;;与当前turtle的交易总金额& f& {+ \% {! o
local-reputation$ v3 C) U/ P P- e
global-reputation3 f' ? s/ J, r
credibility
4 v+ ? \( H5 j: n: @& p; D;;评价可信度,每次交易后都需要更新: r# x; Q8 z. g+ B+ O
credibility-all
% q5 H% S# s: H% e;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据; [2 i k, m0 {7 R
" `/ Y5 M! J( O/ n+ r! k# y;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.51 P+ r* f) ~) J) t+ n1 O; [6 T6 m
credibility-one
9 x6 _+ ?5 O7 u- F3 H& @# w;;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项
' b8 a# R( j) u% B) o7 Mglobal-proportion9 r; ~6 P1 r0 |* i5 k, g
customer1 Q3 [% ?& @/ b* Y! y9 W5 E
customer-no
/ c- |% ?4 v! G. \0 ]" F/ Ytrust-ok$ D# g+ ^6 V: t1 w
trade-record-one-len;;trade-record-one的长度
% g, S! D! B- X, U$ @7 D]
3 v7 }9 ^* D8 _7 J, `
. F" H- O, C6 M( W1 D8 ~( ^;;setup procedure5 u$ ?7 M+ Z$ [& \. f9 T
9 v1 Z! I5 K7 o
to setup( M2 k; F# |5 o5 V" K7 F5 v
3 j& b! T7 a( _3 `; Lca* ]0 q7 d- H, v. O
! @( K& r( O, Dinitialize-settings
5 d, ^5 m! ~1 O5 E0 k2 I
" p4 S1 X \' E9 ]crt people [setup-turtles]* ^3 }) v1 p9 r" H- z* S
% b2 C9 @% ]) u) i, k, ?
reset-timer2 ~ d: x# V/ \! R
* |% N: [, [3 h$ F. tpoll-class
4 N! `* V F* s: j
6 q; N d# c/ R& dsetup-plots
$ p1 D4 P q: R- ^7 h* p' p, k7 Q1 {3 g% W8 {& G' G
do-plots
3 p5 O; {8 V( w$ I# Aend& K9 J4 [' z) ?0 N4 q0 Y9 z
6 l6 l$ \) A1 X+ F* B1 n
to initialize-settings2 Q1 N8 V @3 k5 t( Z. Y. W
9 v4 p( k; S& f1 G2 o
set global-reputation-list []: M6 B9 q6 C j6 r& ?0 s
]' M& O% G+ ]0 ^% z: Oset credibility-list n-values people [0.5]4 ]1 S% Z) e7 g
4 h( y! D' b( ?$ z# ~7 H7 a( {5 P" w
set honest-service 0
2 T7 W$ U b- E* z! `0 C; M$ I) `
6 J9 x. V! \: u8 q0 K/ iset unhonest-service 0/ ^: i o8 B* W5 |+ D8 y; p
4 I' j8 d' m0 J. Z. U j" Jset oscillation 08 W+ I, n& |6 D, c5 R, U
3 ?# \ R/ B9 y' F$ ~: Pset rand-dynamic 0
% Q) u$ ~' ]6 f) ~ tend
' w$ l# z+ _0 X2 n8 [( Y! S9 `9 ~& Q. t0 [( Z, Z* z
to setup-turtles 3 e: o& J' S) ]! @5 I
set shape "person"
) z! t4 r) m4 W' y0 a/ z+ |setxy random-xcor random-ycor
( V# d" F( h9 s; u1 T8 h8 N+ |set trade-record-one []
6 w1 Y+ v/ `# V9 j! i7 [6 n5 @0 o, {. K7 J' E
set trade-record-all n-values people [(list (? + 1) 0 0)] - Y5 e+ [# V- G0 D2 J( ^
3 H1 M$ L9 K9 b9 ]+ p; s6 H0 Mset trade-record-current []9 w7 n! B# s7 m' q
set credibility-receive []
: y7 u, R6 P X4 ?4 Oset local-reputation 0.5' z' J' N. @8 S6 O0 K1 b; c$ I
set neighbor-total 0
" \' D! C5 F, T# e% c8 k& {) G8 s& kset trade-times-total 0
) g9 d0 @" q) r6 e1 r9 K) Xset trade-money-total 09 e+ z/ X: e ?2 [' l
set customer nobody* q9 I# r7 d# X! B' w1 V. w# x
set credibility-all n-values people [creat-credibility]
/ F2 ^8 F* D8 w. G- ~$ }set credibility n-values people [-1]3 m% S0 e; L8 J& V
get-color. Y h0 f' [* S5 U3 f
8 d' s3 O- ]# U) c
end0 a* h5 x' U3 [+ G6 {- M* Z
! u0 ^0 D, j: E9 bto-report creat-credibility
# m( g& r$ r4 T+ Vreport n-values people [0.5]+ q' W/ O2 K6 D5 Z- Y& q2 I' m
end
: b$ {$ E: S: k5 G8 p$ d% o4 E2 [5 H% v
to setup-plots
H9 d/ L0 w/ u+ A5 m1 h* u' b3 \8 T6 t
set xmax 309 H* Q, v) T7 }1 e+ h5 E
6 q* P/ I1 _" k: G: c. {
set ymax 1.0- X$ f' V/ h8 Z! d% C& }
& G/ C1 [7 m( x: x
clear-all-plots
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setup-plot1
6 _" r1 d( L# W5 p8 S& `, }# v! T+ l0 N3 O3 G
setup-plot2
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8 |, G0 K/ S! e6 ^setup-plot3& h7 ^5 Y9 N( S9 q1 S9 @
end
/ T/ u. K, E" H9 g, s+ `3 M8 Y# A1 f9 w2 Z6 u
;;run time procedures; q! Z6 L6 f+ x) a4 g
% n2 f8 `2 i j. M/ P; D$ Z
to go
: O3 s+ [/ |% K4 z# q! V5 J; N' j5 V T5 r5 p
ask turtles [do-business]
. z1 }' D# r) cend8 N$ M' ~' b) I6 @& N' x5 a% c
L! i7 w' n8 r. [' K+ M" c/ ~8 Eto do-business
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, n, {6 n9 E- K: M! Y2 \+ U) Y P: Y z$ J' {2 Q; S D. w4 l, G( ~
rt random 360
+ H7 e1 ~7 x9 n V1 D" ^8 t7 W0 g8 ^3 S; D0 S: w
fd 1
+ N' V0 t9 t8 B8 y' K
( i1 n G# }6 ^6 Nifelse(other turtles-here != nobody)[$ G8 A2 M. ~4 c+ ?% v: b
3 D' q$ h7 M& K. q- ?+ o5 G) l) t
set customer one-of other turtles-here7 ^* H- h& s( I/ T, j
8 h9 t4 I1 V0 V* Z1 X# |
;; set [customer] of customer myself" h: w/ v* m4 k; D4 I
n) S" ]# L7 e$ [set [trade-record-one] of self item (([who] of customer) - 1)
9 A$ E% N% i/ B2 h; T1 r[trade-record-all]of self
; Q) r6 V$ {. g# Z: a;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
+ t# Y; g3 T) |# r; h
, U' f/ }1 |6 E: d0 n5 m% Vset [trade-record-one] of customer item (([who] of self) - 1)8 B* c' e z2 U4 e! e
[trade-record-all]of customer
) A3 U6 B! [" ^+ w' y0 G
( d: c5 G/ T# b7 F# P& Fset [trade-record-one-len] of self length [trade-record-one] of self/ E+ k7 _# w# z. j2 V- L1 Z
/ S) D0 Q' x( l" _, _% v
set trade-record-current( list (timer) (random money-upper-limit))
$ l* C6 Z6 K+ w* ^ m2 K
6 q. `3 _) n3 ?ask self [do-trust]
% V8 i0 M; _6 D9 J: c;;先求i对j的信任度
# s. [; h- { f7 q; K
" g, M5 R2 L' \& m4 }0 hif ([trust-ok] of self)
: B% ^/ {1 S( U) l' E6 x;;根据i对j的信任度来决定是否与j进行交易[
' V. o6 n" |$ {$ v( c0 W" J7 kask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself# H; V5 s, M1 d& G3 X0 b4 d8 U4 [
( R& |. S! k- E3 z8 B/ ?( @- T[' W& [$ Z m. V. U3 T
4 j# `& I$ e. J$ z E
do-trade9 n; a) s k# b0 @4 {, {3 r, z
4 o/ f$ S. `( M- z5 J" Q
update-credibility-ijl" U% U+ g( s2 [% W. S* f
4 ~" U/ i' W/ u4 X" u; e
update-credibility-list8 w! k/ I5 v9 P( X V. K: d
# E6 |' J/ j( M1 Y
( k0 e" n: ^: u! K |
update-global-reputation-list2 L( r& C( G. s7 B4 T
7 a- K/ Y! J. {, g6 w
poll-class- I* k% f- U6 a& O, ]
1 p0 L, Y+ X T2 @
get-color) z @: S7 v3 Z9 z
3 i! l) x2 f! T- ]
]]0 [* n0 g. m- m
: w4 z4 m) a4 R: ], a* `& D, w5 };;如果所得的信任度满足条件,则进行交易
, x# H% j* i' [1 ~& e2 ]
2 ?7 d$ m# ]7 z& i[& U/ P7 w* s1 ]
n8 u$ s* k7 Z0 `rt random 360/ W6 {$ q B- [" u3 U3 N
4 G5 r5 O" `3 |- u7 Y$ @
fd 1! u S0 }# Q7 Q
4 r' ] ^. j- L5 r
]
' i w7 t" B W( y
2 v( J5 i9 Y! ?+ I5 Lend
$ c. R$ V# }* T) T; S8 O7 m
1 j6 g) x- h) D) M4 rto do-trust 0 ?7 v) S2 z8 q$ i9 [- l1 U9 d
set trust-ok False
; x- s$ _4 X6 H$ j2 {5 U' V+ M+ `0 r, S" \3 l8 z& X( h: }1 a4 y
/ q1 h) s2 j7 _
let max-trade-times 03 x" u# {* S+ Y" K
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]; |# D" D) } x" |3 P" d
let max-trade-money 0% N+ O5 f8 g; t2 R. e" C) a/ n) z
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
2 M9 k* ^% m7 R7 g- Z( t7 ulet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)): m) R9 {: n) g3 A# k$ q
/ O2 c$ w' X. F, G: D- ?; x/ \* a% _7 F7 s0 j
get-global-proportion
& G' i; @' v b2 ?* Elet trust-value7 Z, X: \( @- C( v! V9 O
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)+ _4 d, ~9 z0 B7 L; U; k
if(trust-value > trade-trust-value)) E6 w# W* |' b( W
[set trust-ok true]
d7 ?% }5 ~4 O& }$ y8 \5 @) zend
! ~2 T5 V! `2 \- S5 T: t6 N; k% `2 |: R* y9 G# @: \. i
to get-global-proportion% z4 j8 h( d6 Y3 V7 \# f
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
! G' t2 {5 {" W& s) q a3 p0 U[set global-proportion 0]
+ f9 Q8 f/ [) y[let i 07 b. h5 a5 f/ q R4 y) T( s6 N
let sum-money 07 v% j* S- d* [' J' m7 C
while[ i < people]
- _5 E6 y1 Y- R2 G# v[
2 Z( d: A) D6 O1 p1 D5 M1 Qif( length (item i- ^) ~2 L- \4 Y
[trade-record-all] of customer) > 3 )6 [2 D' {5 l; F
[* ~# \$ D* s) z( A3 B
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))+ ~# ~( T) R t3 D$ ?
]8 m; w9 d S$ ^) V$ }) q. w' V
]& a2 b5 Z" a- @* a
let j 0' i3 b! g5 L2 X. i
let note 0
* V4 f" ]- R7 F" B Y5 M) s9 Twhile[ j < people]1 o1 G, ^+ @% K8 A; m& M( P
[1 ? F' r0 C$ M) m( m
if( length (item i3 v4 c2 k: v( L
[trade-record-all] of customer) > 3 )9 B$ P; s; s- }! G- x x* }- w
[
9 R c! P: N6 ] uifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% i+ e1 b0 L1 N. V5 c9 e[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
, Z: c9 @; T5 s$ E/ A. P |4 z[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
9 C0 a) I' h$ b0 Z# T4 n6 [! \]
0 V, M5 b4 y6 W) e# [" }4 y]6 d7 O' i' _( m H& a9 F
set global-proportion note7 a. ]6 s8 I# N4 ^6 g8 H
]5 J4 W! B2 f! c8 m5 @
end
2 g6 L& c) M( B. I9 H$ N( ~9 K" [4 q) r, [6 k4 K6 O
to do-trade# ^" W$ X K$ ~2 m
;;这个过程实际上是给双方作出评价的过程
g$ X |* K5 h2 Y) gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) H) Q7 |3 |4 w. h6 Zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
9 D5 P$ a: P/ uset trade-record-current lput(timer) trade-record-current/ W- B, V1 V$ v" {' _' G `
;;评价时间
% m8 F6 I9 I& N0 f9 Y2 n! kask myself [, f Q4 l, G, j+ n) ]
update-local-reputation& }" d/ {$ a6 j9 H2 R8 \4 Z
set trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
) v: Y8 t- N( U# C+ U) I- H;;将此次交易的记录加入到trade-record-one中
3 q( U3 L$ _' A4 s( {0 x. \: eset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ F7 L9 ^" x. n& R
let note (item 2 trade-record-current ); L' g& Q, Y1 L& c0 o5 l+ a9 a
set trade-record-current% ~# P) w* Z8 f* _6 }
(replace-item 2 trade-record-current (item 3 trade-record-current))4 ?! s6 B7 Q( |
set trade-record-current4 ~& r, A* I5 L/ @
(replace-item 3 trade-record-current note)8 Y$ V& ^$ s, D1 O, I7 G
6 ?9 i% Q- l6 U( b3 f. b
: s, a5 G6 I* r
ask customer [
; T7 j" h6 `* Nupdate-local-reputation
9 K2 p! e% C# k5 oset trade-record-current
, f6 Z2 L$ [0 v; _' t. I' k(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + h; _- v0 e; H( G4 g6 P
]- }+ j- p: D/ K& f
* w8 q2 j2 H1 X) X n0 E
( g) y6 |; f+ f8 ~, c2 M& i& v# _# Cset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer* {! n6 N# c7 L% W* |" S8 C
7 R: o& P! o- P7 T% Z( A9 Fset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))' f: e6 g/ J* r: X/ v) R8 V
;;将此次交易的记录加入到customer的trade-record-all中
% m7 J+ Z+ O; s% F- xend9 M9 i% d. U, e. E8 ~( \# L- o
+ p" ^- c3 |$ W! B! R& r0 g& u
to update-local-reputation& X4 L5 E$ I g" a0 e0 T- `
set [trade-record-one-len] of myself length [trade-record-one] of myself; B# B1 K& P2 [. C
/ n2 S; t8 w0 z! x% u
( `3 H1 r6 _- n S7 t0 z' T" k' T;;if [trade-record-one-len] of myself > 3
, ~: P0 C T' }3 T P) x1 hupdate-neighbor-total
/ e% O0 d! C$ } u;;更新邻居节点的数目,在此进行+ u# v& E# }/ ^) L
let i 35 a, Y6 J& o' R% ^' \" k" B% H
let sum-time 0
' j- a7 A5 \1 F. }9 |' n8 [while[i < [trade-record-one-len] of myself]
9 w, o9 L6 u: m- Z3 Y8 L[
! A9 Y( c" l3 `* E0 ^set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
# r ^0 D# K+ A8 m$ S( z; u, j# Dset i4 Y W( @, V' T* S0 n. f, Y! Z
( i + 1)0 f4 I( c/ A) k
]
% ~; N8 x5 r1 o& N7 S- ]let j 32 z6 z9 l& x$ D Q- n: F
let sum-money 0
. p/ Z# B% H7 N5 p9 pwhile[j < [trade-record-one-len] of myself]
|, x7 y* T2 R/ ? g8 [& c. S[, `. `# t2 f/ x7 F
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)1 ~) q) ]$ i# O J% X
set j
# E' n5 k/ R$ k: @, E) x( j + 1)
+ N% L% L; Z# @+ p]
' U+ T7 u5 u) o; r: w' o; glet k 36 U, Y% x; C# K4 ]/ s. l5 h s- c
let power 0
2 j7 z3 _1 D, e7 J j& Y9 Wlet local 0, @! D9 p, {- |/ X
while [k <[trade-record-one-len] of myself]
+ ~( T/ |; U* _9 N[
3 |& L2 S8 J* n3 e" Pset 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) 0 j, I2 p4 w* r$ i; V- j6 W* I% p+ d
set k (k + 1)
' ]4 _0 \ z( t( d B8 [! D; B]: q. G) T2 D9 ~$ H$ Q- `& \) z1 t
set [local-reputation] of myself (local)
9 k" }9 v. d& }+ Y2 ~end9 o5 G& P( i& F- M5 ?
' O" S, _, i: e: n" X) l& e% T7 t! ]
to update-neighbor-total
! b6 b) @ e: [* d: P4 @. ~( ?" i3 {' s& m' L$ G3 t
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ], r a8 A" M* }& A' ^
$ h7 s5 z- e, ~; T. p' Z1 W0 i" \9 N' |0 C& o6 \
end" E6 d7 K9 o4 l0 I
+ ~+ u0 q$ V" u* Ito update-credibility-ijl 3 S' J" A0 T! g* u; e
4 H5 p& s( C8 U# x5 {8 o Z, ^
;;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。
/ O/ m3 X4 [# H: J5 }4 _let l 0
5 j) w* F, o( p) f3 _, t1 pwhile[ l < people ]
7 Q" g& p+ D+ r; L3 K;;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 t$ N; D& F5 N' i V0 @6 N
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; F: b, A( M" O- h1 Yif (trade-record-one-j-l-len > 3)
* o' b9 a/ w" h9 G* I9 M[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* r) f& Q) Q8 p1 H9 X9 h0 \
let i 3
6 ]! y+ J' v7 M3 {1 zlet sum-time 0. D1 ?% k! K* y& t, W; k9 Y# u
while[i < trade-record-one-len]9 w L; p2 [9 E6 A2 s
[
- x( |0 q$ ]) ^7 ?4 K4 i2 dset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )3 }* p0 ^; }& ]7 Z) j2 }" o
set i( d/ {, x- L9 w, n0 t
( i + 1)+ q% a L$ U& K0 q" G
]% I$ ]0 S) f( h# `3 a
let credibility-i-j-l 02 v* K1 O9 b( ~% G. D
;;i评价(j对jl的评价)" @3 {; E! s4 ~6 R
let j 3/ ~8 F K& [- d: I) B. C) O
let k 4) e( w7 M1 @+ o6 F) Y+ _
while[j < trade-record-one-len]: ?2 \* j0 D5 f3 l" Z8 @& M: T
[
9 d; u. `' r5 Qwhile [((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) c' {6 c: l3 D( ]- H9 Y8 W
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)5 h( O+ N; ]* }6 O
set j
% `1 v# g3 I$ ~( h( j + 1)
: {4 S h6 w! Q6 q7 ^: s% y& o]! J8 m% @8 s$ k+ U2 e; l- H5 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 ))- F) ?3 {( K, Q2 w# l
l) m( C# [2 e' V( @# E3 m
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 g ]5 H/ R' G;;及时更新i对l的评价质量的评价5 d* N- k8 G* b' w: f# ^
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
* x1 ?* {" b! b6 X3 h! S# b0 }* {set l (l + 1)$ ~) j& |/ p) C
]
- I9 w- {" m0 R* t7 z( l1 ?end+ A! B$ ?3 _& v; ]
' B; i- `) X- m0 a+ I8 H3 h2 C9 ^to update-credibility-list
3 k6 T% h1 a$ r4 w2 v/ |let i 0& D; T. P* o+ m3 ~! @
while[i < people]5 l0 C/ i) _+ ]3 [
[1 _ U" B/ X. |; k
let j 0
) J" n' y( p3 |" zlet note 00 I# y- g+ l' B3 b& L7 J. g g3 f9 P
let k 00 S/ V% F( e! r8 C( N
;;计作出过评价的邻居节点的数目
# |+ q; H: E" ]5 C! |- Gwhile[j < people], e. w7 ?1 _$ w% Q% O% a2 y! f
[, l. q1 Z8 o' N6 N, ~
if (item j( [credibility] of turtle (i + 1)) != -1)
# M* O2 |1 w& a1 o, T5 z7 ?;;判断是否给本turtle的评价质量做出过评价的节点% O: p7 a+ H. x
[set note (note + item j ([credibility]of turtle (i + 1)))
4 v( v- H/ ?' U4 |7 |/ N. ~;;*(exp (-(people - 2)))/(people - 2))]
& k, h# p$ d. m/ bset k (k + 1)# d+ ]. j. l4 Y3 N6 s1 j: \
]
9 F) e, _* U" X/ xset j (j + 1)9 n0 S" O: R; I
]
/ ]: B8 @( O( H& H% Sset note (note *(exp (- (1 / k)))/ k)6 H: ^" r% d0 W/ `, y
set credibility-list (replace-item i credibility-list note)6 p0 M2 r7 F4 ~
set i (i + 1)- ^% |" T4 S# g U3 j5 u+ D" r
]3 M% ^$ W- q7 S2 @* N
end
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# F! c6 X$ y* fto update-global-reputation-list7 S7 `. ~( \8 ]# I5 p
let j 0
$ m% @& ]: P$ uwhile[j < people]
1 w/ J% ?( G$ s[
1 A5 V* f h7 J8 K5 p9 t! R& Jlet new 0
$ m, S/ Z3 ^$ c4 X( u;;暂存新的一个全局声誉
, y$ \- ~ w- r' B s" Z# Dlet i 0
) t; S( Z2 Y! K8 }2 G klet sum-money 0
. U, v( e( m9 U, k3 K. U! q7 Alet credibility-money 0) D/ `. V: E& E# y3 s
while [i < people] [4 @" S( O. K. p4 ], F/ A
[8 i* j0 B. f! G, W
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))); t( [; i3 f& X4 A
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
$ s4 K+ t1 G: c' `2 [set i (i + 1)( I5 k! l- o7 P
]2 m: B% t' q1 P; ]# C2 Y
let k 03 _( z/ }$ N/ ~$ j" R% H
let new1 0! Q, \. o) y2 u0 e
while [k < people]
6 d3 t1 `2 p/ i[
- V7 g* H2 T0 {" H$ s3 r6 i( L# t1 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): s. i, A3 y9 I$ z' L D) H
set k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 2 G/ b6 l, o7 H% w& @# j
set global-reputation-list (replace-item j global-reputation-list new)7 G( p ?2 w3 {6 j
set j (j + 1)
K% f( U2 m, ^) v9 D9 y$ N]- @* e; Y! h7 R/ r/ g' N
end o/ Y9 ?9 A: |
9 i ^' }0 B1 w2 ^: M8 _* u. Y, X. b" l
7 w; U# v3 U4 ~. g0 T; o, V$ E9 Bto get-color
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C: }, C# {; U2 [2 Zset color blue
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0 ]! |' J: ~# \- j& S3 `' a
to poll-class* g+ R: d, W( R$ j2 {$ s I
end; n- [+ Z: `+ y# {
8 e2 n1 C+ T# U9 g. u3 cto setup-plot1
7 m" I$ t/ @+ I0 U' U5 l+ y9 I, r
set-current-plot "Trends-of-Local-reputation"6 u2 ]! i& A9 K$ Z3 {( d
: m6 t( i. b n: C0 q- `) h9 \
set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax
% l% n. u7 O) C9 `( v, R7 Z% f; Vend
7 q2 j4 s- O/ ~# j8 u" x
0 v/ r! X6 c8 {3 ?; y7 `to setup-plot2" N6 a* a o9 h [
2 w8 k1 u! ?% F: j% G( m l- eset-current-plot "Trends-of-global-reputation". ]! R9 F- u4 Y6 X% P1 h
* ~" \9 n8 ]* ~6 L3 M
set-plot-x-range 0 xmax2 C8 O$ @& q4 T9 j% O
& P3 u- M( h# }# g1 Y) L
set-plot-y-range 0.0 ymax# U0 N1 [$ \6 _* E, o7 b2 s( a
end$ [& f- n: L |5 k* p
2 X! D7 Y1 @8 l3 Tto setup-plot3
" a9 {. X2 h" J/ p4 k4 [5 T# `+ B) A
: ^6 V+ I' `6 z1 Jset-current-plot "Trends-of-credibility"9 k7 W; E! [0 q0 t1 x# O* S" g
S6 f0 Z7 b: {9 Wset-plot-x-range 0 xmax
# A$ }3 q$ i9 C! f8 {0 E! C
. ~% S9 w) a) N6 ?8 ]7 dset-plot-y-range 0.0 ymax
! |6 Y! O4 l9 j( v! Y$ g4 L# K/ y0 Wend
& d5 d; z+ V: ]; c& ~/ G" h& t
3 m" y5 S! S5 f1 w: ?to do-plots
- S3 U5 E3 p eset-current-plot "Trends-of-Local-reputation"
& g* p0 V; W$ hset-current-plot-pen "Honest service"
' |% M7 {- ?, d6 Q6 J" ]7 ^+ }end' R. i+ ^8 J5 {" m1 U; D6 @
3 G5 p$ z0 D: A4 T# _1 g2 I* w# C
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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