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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
! D$ n* W: N% m1 V1 k: G/ D- uglobals[
# e" c8 K" F6 J1 C6 J6 `$ {( |xmax
/ p/ [+ t; u o2 Uymax+ I2 u# s) d- j) P2 H: x
global-reputation-list( i1 D( H2 U7 i- U
/ K8 W0 X3 a* \. Q
;;每一个turtle的全局声誉都存在此LIST中
+ W7 m7 [, i" c- K+ rcredibility-list
# P j3 V5 h7 \( y# c# M;;每一个turtle的评价可信度. Q2 z* y$ F+ O. g" b8 O
honest-service) g+ b" \2 M3 u5 j
unhonest-service/ y3 B- D( G; D- s1 B
oscillation
' D9 J1 q0 R) u) Rrand-dynamic
& g% r6 f* @& I v' U. j- k k8 u]9 d0 ^" M4 l% |2 l
k2 o+ o$ n- C' U8 d
turtles-own[/ ]3 R9 H) H7 ]# `9 h {
trade-record-all
& Z$ B" i/ F' L+ N;;a list of lists,由trade-record-one组成
% [' ^* [$ q. d$ \: p- j$ s/ T$ |# etrade-record-one+ J' D8 P9 B7 j2 w$ C4 r4 v6 k7 |
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
! {! D' z' h$ ~0 S# u: M b& _; A% G/ P* ^+ W
;;[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]] s% [8 X5 g2 l2 G- i5 y
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]( F3 J0 J' {4 Y+ {! U1 ^! e
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 `9 V; c" h$ T+ `
neighbor-total, e+ l8 t- d+ f+ R6 L" p
;;记录该turtle的邻居节点的数目( O, O* H& ~/ e. o. K' S" ]
trade-time
0 O4 Q9 Y" {" E9 [. Q;;当前发生交易的turtle的交易时间
: v0 v1 a: x6 l7 K1 ?appraise-give( A' ^) {6 w% j s! K
;;当前发生交易时给出的评价8 V! s/ x2 `5 G- s) x4 A
appraise-receive
\ L+ e! g) e [6 }& S;;当前发生交易时收到的评价# f' J2 P$ ]$ P* K
appraise-time
7 o- q. |2 ?9 c( T/ ^;;当前发生交易时的评价时间! v7 L% f) Z7 S. I1 A9 \9 E
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
8 T$ d1 J; s+ ?4 F1 j* ^trade-times-total* h9 J0 s; J% p7 n6 y8 [/ P n: M
;;与当前turtle的交易总次数
* |3 O& N" {/ _; ~" Vtrade-money-total
! O: c |7 z& s, t/ B;;与当前turtle的交易总金额( h/ I9 f# ]8 S, k( h% P% _
local-reputation
! R4 B8 W9 D: aglobal-reputation
l' Y5 r# E/ _' t1 z, ncredibility8 ^* ~" u9 B" b, K( r! B$ j
;;评价可信度,每次交易后都需要更新
* _: h8 a; f- h& b0 }5 W- Jcredibility-all: f# E( F+ T6 i
;;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3 V7 ^2 h, X# h5 ~: k# ]
. s k5 K# A( b/ ?/ S+ w5 k
;;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
4 [, ]8 |1 c9 J, Ocredibility-one
( o8 n0 X% ~2 v% _; i7 B! };;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
8 ?4 P$ s1 I, D7 Yglobal-proportion4 D2 Q- E [- b& h8 {
customer- I5 `% p+ O1 R2 x6 S+ |
customer-no
4 f' B: `! ?' o) I: @trust-ok6 p8 k( b/ U1 H/ I, @8 K% y
trade-record-one-len;;trade-record-one的长度
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3 y7 |- {( {- Q
;;setup procedure
( ~( Y, N+ K; F( i) m; d8 n8 k0 Z! q9 G. E2 J, u+ P5 h
to setup
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" j S4 k9 i' B0 U7 Nca/ q* i# `' e" y' D
6 k' Z+ s( @3 S% J
initialize-settings5 r4 p3 k. ^) |+ B$ Z9 p Q5 K$ J
4 n- h. S- X, @+ Z9 }' n4 B1 a% Gcrt people [setup-turtles]
! I& i6 }( |7 S
" k* B0 F8 O% M( d! F0 ]reset-timer
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poll-class9 B0 l- d5 e* T
# S: I+ j6 S* |9 P6 Y) D6 v
setup-plots
8 ]- z! r- o1 S. A% j% `1 A
: b3 s0 P- K4 Ydo-plots, N F8 d C3 {! u
end& Q1 _9 }! ^3 X* D! z$ j
; e( B0 u9 W- l6 a0 l" ^+ @- Uto initialize-settings" u; ^7 Y6 p% H
+ K6 m$ f3 s4 u) ]+ q
set global-reputation-list []
( ?+ G! D7 A; ^- O( H
^& K' u u# s0 p# r+ {2 ^8 i) ~set credibility-list n-values people [0.5]) {# N k9 [; [. {& ?1 g
) K2 B: y+ S; Q2 lset honest-service 0. R) Y' z$ y3 j# d, M( A. |
5 ?. Q0 H$ o) b) Z# M5 D& L
set unhonest-service 0
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set oscillation 00 h1 N/ l! m: N& f; U8 h8 `
- W3 R. n) {$ R! Lset rand-dynamic 0
+ r9 Z5 t( ]1 E2 u& @6 ^ `. gend; D" g$ I+ w' E! O+ ?: R. a% ^
0 q& B; i6 G8 U( ?& ^
to setup-turtles 4 M9 R, _, T& G6 Z$ v0 v9 ^
set shape "person"
. E' ]1 s3 |+ y$ n4 F$ p3 Asetxy random-xcor random-ycor
) r, L6 F8 x5 Z- h+ A& d% Kset trade-record-one [], \: P$ H3 _5 e6 O9 ]$ ]
# [ N G& W. A! o$ `8 W
set trade-record-all n-values people [(list (? + 1) 0 0)]
( p0 N1 ^" B& ~0 C* p; G/ G6 h! e+ ~4 N5 h2 \' ^- w3 a+ P
set trade-record-current []+ s; e2 q/ B2 n4 S7 x* m/ m
set credibility-receive []6 {* j- I7 w$ H) q8 w) S
set local-reputation 0.5! Z- W* y0 t$ S! E5 C" w2 [( j
set neighbor-total 09 j5 C; `+ c3 _4 x3 [
set trade-times-total 0- j' d% A2 S' P. ^8 ]1 w8 k
set trade-money-total 02 e: ?, w7 L3 o3 O& b9 G
set customer nobody
/ D# D ~& z8 C, Qset credibility-all n-values people [creat-credibility]" z2 C0 e n0 J. L0 D8 S
set credibility n-values people [-1]* [5 _( c/ Q" H
get-color- X. D- p' i. a; Q) x. @% o, `
: C+ V7 Q, o% `+ E- t! d
end
3 n% h! z5 `3 {7 I$ H9 n% m6 }' e' k" }" x, O
to-report creat-credibility9 B$ s# M% Q9 u6 j3 K$ ~
report n-values people [0.5]0 n q$ M5 E4 g& W" _
end9 T: v1 r, q1 j% a" Z+ c, g; e
2 q% }& Z0 l( D. a3 z
to setup-plots
& ] r# J7 J3 j d1 E1 n" V2 Z: p4 P$ p' _
set xmax 30 x4 f2 P/ v' ?* |3 K( h# ?& p! p' y: x
: i& g/ M4 L$ m' ~4 x6 H: d, D! u1 fset ymax 1.0
5 C& G3 C4 c. d1 L# x( R9 a! ?, P! ~
clear-all-plots
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% f8 ]! `0 y; R9 Gsetup-plot1. D6 j8 d& v" l, U8 p
3 |% w- [4 |! A r
setup-plot29 C# v, S4 D6 N9 |. g3 |& h
: I+ d) P* g3 n# v2 Lsetup-plot3
) A+ e2 Q6 x+ F0 bend
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! g* q8 \* j1 G& B1 F' E8 k;;run time procedures
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to go
1 d6 l6 i) Z! l$ n6 h9 ?( _: I4 p6 V; W
ask turtles [do-business]
9 y: i8 m4 Y5 _$ B! t) Aend
, a- v1 z, r# X. o! A$ U1 O+ M' K; S9 {/ h1 x9 P! Z% ^# E
to do-business
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/ u( A: t6 X8 M
rt random 360
$ s R& `: _/ _, x+ a. b' v% i4 _, i9 _+ D2 o
fd 1
3 f3 ?" H, ^" o3 w& u4 ]0 c5 d% m" I E' A( i- c5 w; o$ a
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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" m0 Z) \2 D; ~;; set [customer] of customer myself
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- r& L$ m! A% mset [trade-record-one] of self item (([who] of customer) - 1)
& b3 |5 \, H+ z7 h1 t0 _[trade-record-all]of self! H6 K) b+ S$ R1 F2 h. f" s
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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4 \3 t" Y0 D( S& Q" pset [trade-record-one] of customer item (([who] of self) - 1)) w( ?( h4 I& C# W
[trade-record-all]of customer- g$ _' K2 X Q) C
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set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))/ }3 q0 z- X7 J. t. | Y/ e
! A1 k0 b9 U/ g; b$ j6 X6 |# eask self [do-trust]
2 g" I7 r; F' g1 |, w. L& M3 f;;先求i对j的信任度
1 D$ }, F. y3 J; t) y
+ T" [- S8 a+ O3 {2 p+ [! I' }if ([trust-ok] of self)
/ c% k9 [; O" V, j3 ^;;根据i对j的信任度来决定是否与j进行交易[& Z' r) k a7 x
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
1 T0 I% ^+ S% A$ p: U+ d; |& z7 d! p' T" a
[9 t, ~: a9 z$ l% N3 v
; a2 Q/ O/ B* _- A Y) i6 V
do-trade
0 s$ L9 P7 `" `. ~3 b
( B; q% J+ P$ C; a( y6 u6 zupdate-credibility-ijl) k5 k8 X0 H" X& o! [9 Q+ P
0 G/ e9 p" E7 J' y/ {$ c
update-credibility-list' o6 U* h! D- P ~
$ ~5 d' c3 p3 E
# T& F [7 @- w2 S, `; ^6 f6 X2 b! qupdate-global-reputation-list6 c) r n7 e: z6 \& B& b
0 v# O; h3 A8 {$ Q3 Vpoll-class! n- L* Y, X4 O. S- H2 J, y
* ]7 l; c* H+ y- R3 t& nget-color
+ z/ Z' `5 L, ^. o1 m0 z, I! ~- M- O
]]
8 z9 S# E+ M: }; c, T8 u
! J; V0 N' P' _0 x R;;如果所得的信任度满足条件,则进行交易
6 E4 \6 `. \. Z
' o9 I" w8 B A) z/ U- F6 j[- w3 f( V1 b y b* ]) F. @
8 t4 ~) s/ A' brt random 360+ B ~* ^2 \0 v3 V2 s
: C9 L% Y1 v; r" s1 \ T2 W
fd 1
/ }, X9 w* m- J/ _" j. ]: y3 d) t h! J4 W0 |5 e9 J
]; b! M$ ]7 x- O
' ^- e' [! ^# A: Hend2 v$ d; G2 L5 F7 e$ |1 n" }: e$ v: |
- H9 g1 B3 r6 r" M& _3 j
to do-trust ! z# ^% ^1 s! g3 b5 R# O' Z
set trust-ok False
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8 v2 n: d2 O& ?6 f$ z, D t4 Z; q$ h/ v: S9 |
let max-trade-times 08 U' J( s& x* i/ I- ~5 }& l
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]] O. v8 s. ]- ~, c
let max-trade-money 01 o7 f# m o, g& j* {/ f5 P
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
6 q( O( g9 X7 J7 @: u% I2 p1 Ylet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
6 \9 P% H# k6 ]4 j* b$ m* L% U( ]' _
: \# g/ _+ i/ j. H$ ]8 z: c7 |4 g. Wget-global-proportion
A7 M8 U- L9 b; o6 `+ plet trust-value
9 M' X: R% M& 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)
+ D- R* W' E' s' U. m/ Qif(trust-value > trade-trust-value)) R. Q! _5 a+ H% P; T4 d5 o$ E
[set trust-ok true]
. t* S" w& b; aend( J$ Z( W9 |5 Y, w+ s" g1 J
N) m2 w% [0 A% ^* ?: e# Y
to get-global-proportion6 M! e2 H0 u# t/ j: g3 ?# L# {
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 Q( m( s9 U" k" B[set global-proportion 0]' K9 M T- h0 F
[let i 02 H7 O6 c7 r+ ^! N2 e" D( v1 V0 x
let sum-money 04 Q9 ?9 ^0 J' d4 s3 n( m6 s* x
while[ i < people]8 _8 m* W4 j- D8 A( H
[* a' W! d1 ]! U; W
if( length (item i
5 X) m3 L8 [9 w4 ]# h6 Z: _9 i0 ^& z7 G[trade-record-all] of customer) > 3 )9 X: ]) q3 |& |
[4 b) P }! l, k3 G
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
0 h6 X5 C% d) C5 X]
# y/ @( }$ E( ^: G% j5 C; j" c]0 c- ~; I4 W: S1 y! c
let j 0
7 ~( O' \* u4 A( T1 i9 p. V' q4 |let note 0
( Z9 K! F" |# J% ywhile[ j < people]4 v4 X$ w! s& H9 }
[
* Q! S. a8 o/ i. f/ zif( length (item i7 E7 P( ? }2 E2 }# @$ y- Z
[trade-record-all] of customer) > 3 ) K; C- M; y! M* y( h9 N
[
/ k& h6 D- }( y2 b# \. K$ {ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
( j2 o# Y$ _0 z/ Z% c* D6 i0 X[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
9 y' u1 R m4 z9 ?[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)], } X% j$ ^8 V' |; W
]
3 q9 ~$ f/ x* j0 T" s8 K2 ~]
4 Q+ n7 `5 Q) P+ R1 }; i$ l, Sset global-proportion note
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end7 e. m% \& ^- K
3 c" E& Q" @! }% i; Gto do-trade# f% b& b8 S& V: U; w( U% R# Q2 H
;;这个过程实际上是给双方作出评价的过程
v, U! S7 N% n- Y' P, j+ j7 C4 Gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
' Y7 j8 O1 ?; u) y4 R0 kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
: Y8 S9 u* g- \: @9 pset trade-record-current lput(timer) trade-record-current
/ `9 W; M0 q8 X% V% x' Z;;评价时间6 Y4 u8 K; T( e' s
ask myself [$ ?+ X3 E/ s( i( t# ^
update-local-reputation
0 }/ b+ v- t" i6 q" ?+ _$ m; Tset trade-record-current lput([local-reputation] of myself) trade-record-current6 N2 A& Z1 Z: i( B2 R, Y V! F5 e- {3 s
] I4 f. n- t6 ^" h' C
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself2 q0 z4 ~) t7 J
;;将此次交易的记录加入到trade-record-one中
% B6 C$ l( d* {6 q7 Zset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
9 d. g( [- [- g! h2 }let note (item 2 trade-record-current )" P& @2 h$ [9 L: ~( ~0 [' \" R
set trade-record-current
+ @8 g/ @9 Q, [(replace-item 2 trade-record-current (item 3 trade-record-current))
& e4 ?& r) W N4 gset trade-record-current
3 @! P) ^% h0 M3 b(replace-item 3 trade-record-current note)+ U, I V! ^3 y0 o4 M4 V* J3 B+ s
1 T" y- N! b( Y9 u; ~7 v% r
- M! [0 [6 G) g, f6 r; C& uask customer [5 S+ h; E. ?! `8 q6 D8 _
update-local-reputation" _8 k& q& \6 ^ t% i% c* C
set trade-record-current; ]6 J7 P0 l; H$ o U8 u, O
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: I$ k, m- i4 _+ z8 {; y& C# `
$ \# u8 O# W3 A
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
/ P+ d" U' M- i- W- Z1 V;;将此次交易的记录加入到customer的trade-record-all中* U* n7 p2 Q9 J2 m: k# _' d4 g
end" a6 d' a+ D6 E( B* o& V7 [- b7 m3 \
+ |% ?: H2 T3 Q1 }/ E8 x; gto update-local-reputation0 i6 Q3 t8 L5 ?, m1 F( X
set [trade-record-one-len] of myself length [trade-record-one] of myself5 N, n% V' o! Q' G ?
$ }6 y; x3 U9 r, _9 F
$ p( n! h6 i1 [+ Y" g
;;if [trade-record-one-len] of myself > 3
1 _4 h0 h& x4 q& I+ t) gupdate-neighbor-total
- L2 W5 v! k* p. C( J; f2 X9 ~, W;;更新邻居节点的数目,在此进行
8 f% |6 w' }% F8 X6 s' D0 {let i 3
4 M* |3 P0 R: e! `" o! a; V6 t% jlet sum-time 0
' b. ], v/ p. N6 Z, Mwhile[i < [trade-record-one-len] of myself]* y; \" ?/ S( [4 |% A
[
6 Y: x- t% H& L- E F; qset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
( Z5 ~7 A' T( `& Pset i0 f: r2 q) E/ e
( i + 1)4 q/ W; N# M; _6 t, ]
]
; y' S6 z) I5 L. Ilet j 32 Q/ Z3 ~4 P/ _- `
let sum-money 08 S& A: o6 w/ q G6 f) ^% l- C; W
while[j < [trade-record-one-len] of myself]
, l" b$ o9 H) w7 Y' k* k[
9 [7 v' r5 f9 d8 W& f/ s+ ^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)
& q3 l4 i" q! i2 Q2 Q% Fset j
& `/ h: R; R8 k! r! O5 o& K, q( j + 1)
8 G$ h9 U! z$ S) _, }3 F, P: \]
- b. a- l3 ]; f# g' r) b. x7 ilet k 33 o8 t2 g! F& s+ I, t: p, ^+ u
let power 05 _! k. K0 G% p
let local 0
; ?( ~( O( P) L4 x! l' nwhile [k <[trade-record-one-len] of myself]
" e/ v% U( k3 X9 @[
- z4 M1 b( ^8 aset 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) ; E8 T2 u' F+ b. D0 x. A. s
set k (k + 1)
7 B% k; `4 N& V]( z8 s& z8 c* v! J; L1 K
set [local-reputation] of myself (local); o6 o7 ~* j/ \ l( [7 S
end( R) N) W% s3 T( L
% X+ a% N& N+ d7 K1 W) ]+ j8 @
to update-neighbor-total
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* z0 q6 W6 l d* y/ y) Z% Dif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. \# A7 N- W2 B* Q, x
: I/ e E% i' ]; F
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end
6 A5 ^$ f+ Y4 ?- v
( [: x& r0 g1 S1 k* m+ b: Z, m& z" Ato update-credibility-ijl & T/ n3 w# G: K! l1 m$ b* U8 y. X
+ n7 M' H% n& J5 c8 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。! p. `3 H8 r& V# o# N) L; Z# X4 G
let l 0/ ]/ O4 d( Y0 J& D
while[ l < people ]5 K. l9 S& r% a& w2 U% A4 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+ k% |' h" N2 k. ^ o( q6 @
[) t! E! o( n: B6 K: v+ L" x! V
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
7 q( G7 z! T- Y8 K; ~3 S8 W( j$ @+ S7 Cif (trade-record-one-j-l-len > 3)
. d: z' }5 L3 z* D; S; E[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! v5 S, V) ~
let i 3& I7 o* K; b/ o) @0 X8 i4 P3 \
let sum-time 0! ]3 e7 c, s& X& X% d5 @* n
while[i < trade-record-one-len]. x) {% {3 B0 |' e& }" N1 u
[3 j3 h# y1 T$ ` D* H. x$ K
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
! `& \6 N U2 S/ \. Sset i& I* L, l( N4 G. C$ \& N M0 \
( i + 1)
8 p$ G, w4 {- ^) ]0 Y$ I) [; `$ e]% H3 V6 h4 q: h3 G. I8 a( `
let credibility-i-j-l 0* O* J7 N1 C6 a$ ?& @
;;i评价(j对jl的评价)- z* M" B: w+ P* A3 {8 `$ p
let j 3+ u6 T$ d* l7 a- c6 q" h# G
let k 4
% m+ M6 F& n% z8 a. N4 b' M. l) y; s2 A; kwhile[j < trade-record-one-len]( p* G" k2 j4 u" f4 ]
[3 N' S# m' x, W* \/ s; ]
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
7 @$ P- S, J* F7 n5 F% \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)- L0 ?" D9 U9 W m z5 N
set j
7 Y5 n5 t* B& [. h% x% c9 ~+ @3 e( j + 1)
1 a+ H; {9 R* |% i* c( R& J% g], O$ ?- L- D6 f: s% B9 x
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 ))
2 p/ D+ i& N1 R- \; h$ m) m) W/ j& j: V4 i& A) L6 M2 M( g$ A
: h3 N3 ^( d6 J9 }9 Q
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))# q$ n- J6 q+ S4 B1 E& f
;;及时更新i对l的评价质量的评价
; x) O/ ~& z1 [( Bset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
9 s" P7 T: Y+ f2 x6 iset l (l + 1). y2 Z9 o L) Q/ B* c
]
v. c, ?, b5 P" l* q/ Pend
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to update-credibility-list
0 I) |8 w7 M3 U& ^, vlet i 0
) j0 t" d$ x) u' m. Kwhile[i < people]4 b, i6 c# b4 p2 A3 ^
[5 x9 q1 N! y A
let j 0
, j6 f7 |# f4 J1 ~; glet note 02 C# ~ {+ U% ~ X% G$ A
let k 0
; ]; m( b! o1 `, i# x;;计作出过评价的邻居节点的数目
4 p x3 {% D# J* Rwhile[j < people]0 }/ R) n2 U: B8 {2 Z8 {
[/ ]& `4 f" ~ N0 \! Z' `
if (item j( [credibility] of turtle (i + 1)) != -1)
- M' H9 U! i/ Z @9 i;;判断是否给本turtle的评价质量做出过评价的节点 S; o; X0 u( T. [1 m9 w& `
[set note (note + item j ([credibility]of turtle (i + 1)))% J7 F. T S6 ?. D. n% \) A. z8 @/ I
;;*(exp (-(people - 2)))/(people - 2))]7 J, J+ t( |4 r
set k (k + 1)/ C9 a& E V- R# P6 _
]8 D8 W) d+ b+ Z, C% K+ k
set j (j + 1)
5 K2 g1 d9 D5 i4 s7 a: X]
( q. x$ v' K. w; Fset note (note *(exp (- (1 / k)))/ k)& |! ?# r/ e. M7 ^; i! a
set credibility-list (replace-item i credibility-list note)- D$ V/ I% r1 Q) d
set i (i + 1)" d8 ?3 S1 e9 }* b1 U' H7 W
]) H: Z3 W0 `+ z, V+ j0 c% h& z
end
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to update-global-reputation-list
' |+ h9 D% [$ c9 Zlet j 09 \4 s3 z1 U V8 h- A8 F6 x
while[j < people]+ q! }% L( X$ {0 f
[- T% ?8 Z6 {7 K, \0 R2 ^. s
let new 00 }( {. N! N2 q5 u( m; o7 b+ Q
;;暂存新的一个全局声誉
" b- d2 V7 C/ k5 [% f& xlet i 0
& V9 m$ m' q+ l6 q' Qlet sum-money 0
9 p! s4 }% }7 j9 x( a3 o0 u+ ilet credibility-money 0
1 z& T9 s0 _4 O, R4 \while [i < people]+ o5 |/ f s- A7 G# n
[
/ ?3 G2 ]+ d; I/ k6 t; w8 wset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))) V5 _* e6 y6 l6 U* f5 \
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
; f/ ~- E& W7 x2 b0 {2 ~5 v( tset i (i + 1)4 n7 o; G. {8 R3 U2 J" `
]
6 g& X( H+ L/ Tlet k 06 I% Z/ |! x5 X/ q# B1 P' N4 l
let new1 0. o: Y3 i( Z1 H5 j) V. V# V4 q
while [k < people]
2 v* S$ v( U7 W6 t; @+ j7 m5 ~% l C[
2 f8 D4 z5 v( B9 F/ h+ v# ^5 i1 Sset 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). K, [1 T) N3 W
set k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) - }! T" X: B+ H3 M3 G
set global-reputation-list (replace-item j global-reputation-list new)
/ j0 p- w' Q6 E2 j' [* M }set j (j + 1)
( W9 F. _, [) B5 }* {: f9 x]( K: n9 @ Q- J( M* ]0 L
end
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to get-color
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set color blue3 B/ Y- j6 X# U% b; c1 P1 O4 E& m
end
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9 U& o! }8 u+ x) s9 r; _to poll-class* B4 W$ J, R5 H
end5 G4 N+ Z0 G0 P9 F& h6 w
: a) @" D) _$ ]# n/ V1 `to setup-plot1% q" v3 p& L: J1 u$ C- i& w+ S
# ^( z: \- s! q/ U( t' H
set-current-plot "Trends-of-Local-reputation"% n/ m* c9 O n" Y- w& V) D
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set-plot-x-range 0 xmax
8 a) f2 [; g j! V+ J
! g$ h6 f# ~3 L( [4 ^1 A& A, J5 H! Xset-plot-y-range 0.0 ymax9 W+ A& k) p( E x- l$ L' G5 a4 Q' L
end
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1 P/ j$ p8 I5 Lto setup-plot2* D1 }! t( r# i' n" v4 v8 W- O
* o: y' w6 k! y% X5 S, c8 {
set-current-plot "Trends-of-global-reputation"& \& f/ p! _ U4 `) @5 ]
0 x8 s6 `2 @8 ~. M3 V) a7 z; Hset-plot-x-range 0 xmax3 W# Z* I- s4 d
7 k+ a4 E; t/ s& b- U- l( `% O: Yset-plot-y-range 0.0 ymax
' b' ~* ^; ~5 ?& ~2 t# Zend! w+ {' w. D; E) x7 N
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to setup-plot3
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set-current-plot "Trends-of-credibility"
9 R4 x$ }3 ]1 j" u8 H9 X3 {2 k; h) |: A& M+ T$ ?1 D7 f) ]
set-plot-x-range 0 xmax t3 g3 d5 Z$ N) I- J* m( I9 {
) C% R8 C1 G$ ]4 V1 F d7 I
set-plot-y-range 0.0 ymax
" O% e5 E' g- i1 M- pend# J+ G2 f* @4 Y O; M. S& {* s+ T
. m- G3 t6 q$ m" d4 Z' V: Mto do-plots. M7 g+ l8 n: R' q
set-current-plot "Trends-of-Local-reputation"
( j1 f4 d9 u I0 l4 g3 z J, j" Eset-current-plot-pen "Honest service": W' \/ C; e+ ?9 B% m7 s: O
end+ W! w! ]. z% B/ D# u
* f ]3 r1 H$ v+ C( e% `[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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