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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
, V( x; ~5 `% cglobals[1 P' f- \3 r0 G6 X& e
xmax) R) k; S( H# P
ymax
0 U* U" Y2 C! g/ `: D# lglobal-reputation-list6 A0 _5 P5 @& J) S3 R R
3 t5 P+ E7 s9 A' X, g
;;每一个turtle的全局声誉都存在此LIST中
8 W- p3 x8 J8 g6 mcredibility-list* x2 Y4 n5 U N6 W
;;每一个turtle的评价可信度
, y$ q+ c8 Q, I: m" B) R$ ^+ Q( \honest-service
8 _1 P5 Z# V/ p8 qunhonest-service4 ~% g5 p+ Y, M
oscillation% S0 j7 {! R! f- p' t& Q
rand-dynamic# E- J% y1 M" T: k, S
]
; Q+ m' G4 a( {$ k0 X) U, c! y4 O/ g; y5 ?. S* U6 i1 h
turtles-own[
$ D' i. \) H! p u8 `, p) R+ r ctrade-record-all
! _1 P& j, }+ u5 L4 G! X7 F3 R% t& ~8 U' K;;a list of lists,由trade-record-one组成7 G6 q- j6 f( J8 U) R
trade-record-one' I3 }* S' K0 V
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录 L5 L" P% D8 e1 | J. e
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;;[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]]
7 {: X8 @* v& f0 {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]( E8 q, f* U* J/ D' ?
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# b+ j8 e( Q3 {* P# w
neighbor-total, Q8 y! M3 g- L* c) S. A# j
;;记录该turtle的邻居节点的数目8 L" H# @+ p# [* z& @: w
trade-time
7 D+ _3 c5 n7 N$ F3 ~9 e& X;;当前发生交易的turtle的交易时间8 [- `( s9 s( B
appraise-give
! B: {: v& i. l9 k3 u;;当前发生交易时给出的评价
- |1 i4 W% t' D0 p( } y1 V) Wappraise-receive! {) f7 i4 @" P4 S
;;当前发生交易时收到的评价
' I: f [. A0 S7 W, g* aappraise-time
4 }, m" |7 Y& R/ G$ S6 p `;;当前发生交易时的评价时间" @ M# n( C( M' j; |( C+ ?9 k
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
% | J9 K& Z8 t: }trade-times-total$ ^, g q0 k! f! l
;;与当前turtle的交易总次数9 R; v% M. e- q& X% U' ^
trade-money-total2 k0 c* h* r6 |
;;与当前turtle的交易总金额) g6 z9 ~& s0 b# n3 B$ u
local-reputation
+ M- y' C6 t3 Q( q- U$ `# x4 nglobal-reputation
( F# F* N$ c* M- J" v3 e, K# T+ Jcredibility/ c U% o3 }& u
;;评价可信度,每次交易后都需要更新( ?* b3 s7 ` ^6 m9 F* h" E
credibility-all9 K7 `9 I. o. P( k, j: j3 L
;;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 I# u% c* r7 E/ [' v
$ j9 S# o) b% y2 A/ q0 ];;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0.50 Z6 {: {3 c$ A8 s' i% r8 y
credibility-one- O: A- y: [) i; H3 G- v; b0 c
;;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
1 I5 @! p8 O1 U3 ]$ H/ x; sglobal-proportion8 C/ ]- S$ L N6 Q7 ?* S
customer2 i" O& s6 }& D+ j( G
customer-no1 O. z0 V% E" r
trust-ok$ B) ?. b E# {; ~$ _" y4 M
trade-record-one-len;;trade-record-one的长度
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}, Y! k. Q' T;;setup procedure; F& r7 ]7 ~/ l! R1 N/ P. o
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to setup
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ca
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initialize-settings) H' I0 l" f0 t
0 \% \: K9 v2 r, I: x' y
crt people [setup-turtles]
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reset-timer
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6 y# v# h1 I6 i3 Cpoll-class
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: H8 G, j5 I2 H; Ksetup-plots- r. X% @) ?4 l; Z4 M+ \2 D
: n' D6 D1 d' j- C- s2 a! }, R5 [, Cdo-plots
! |2 y; Q( M X# p7 k2 Send
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to initialize-settings
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set global-reputation-list []& g0 k, m" g# {
7 c( _+ ~# u! b0 Bset credibility-list n-values people [0.5]
' i9 A0 P$ n* n, c
# a- P* E" K0 vset honest-service 0/ j7 X* ^# Q' ?. ^
( n, l- L# `" Gset unhonest-service 0" Z: T% E o8 i2 b3 A. M
& b |6 I9 H; K/ A2 Tset oscillation 0
2 a( q1 R2 P* Q, s+ ]/ o% [1 P7 P$ {; b; g1 \& Z# O
set rand-dynamic 0" x- R1 g: o8 ^$ O. d- ~7 G$ n
end
2 B, q7 L$ |3 q1 A
; O1 b* L% b/ @2 V3 Zto setup-turtles
( x5 o0 e/ U7 [2 W5 fset shape "person"5 `# x2 h- Q C" I
setxy random-xcor random-ycor a7 E' z* s1 l. d$ C1 E
set trade-record-one []
( }; ^( B9 q0 J0 J9 D% n4 A* f
6 w, \3 k- c$ r4 F# k5 Hset trade-record-all n-values people [(list (? + 1) 0 0)]
# f1 }' u' @: g& D1 F9 y% F. n9 ]% _
set trade-record-current []
( D8 V. i* b$ i1 S+ Iset credibility-receive []" ~# t: c! x0 O& p8 _0 I. W
set local-reputation 0.5
; ^+ o4 U5 E# ?7 z8 W+ H# kset neighbor-total 0: h s) s$ |- B7 o: E7 W% l
set trade-times-total 0
" d9 n. W9 ?# w7 M% P- x* cset trade-money-total 0
- Z# g$ D% y z5 t8 ^* o! sset customer nobody
+ n% J' ^7 ]8 bset credibility-all n-values people [creat-credibility]
& n8 O3 ~! p+ R# j/ Mset credibility n-values people [-1]( V1 x& x, c: T* [
get-color/ @: D/ d1 J& X) E
) |0 r! z$ j6 ?) I! f
end
1 @; E, i W. \ j
; O4 ]( O) W, S0 L5 e# wto-report creat-credibility
0 j3 N; R$ B5 s4 T9 V0 ?3 `report n-values people [0.5]# ~8 F" }9 H- m; P0 P
end# `/ b3 |# Z/ N" v
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to setup-plots0 X2 M- T3 p" A8 Q
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set xmax 30
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set ymax 1.0# f+ j: o9 T! N; q& e z. K% L' i$ S: H
$ g5 o9 k# S. v+ \- W* mclear-all-plots( T( b% i+ @* ]3 V% H/ k
: P, N; d% S% J( ]# i- Psetup-plot1. O8 W8 P+ U9 g9 o* M% A- u6 e
% ~# Y" p; n1 ~' ^setup-plot2
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setup-plot3
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! x$ \1 Q% [3 w/ X7 C9 {+ }5 x6 N
;;run time procedures
" C2 c4 E2 S- y
6 K, L: y) V' ]to go. h9 u! v) T% G" m5 R# p! A
/ p& \1 q+ M/ O# g" sask turtles [do-business]
3 C0 E/ Q1 W* cend
1 y3 ?/ H! n% v" s2 Z6 D* O. m' r; N/ D, A, ^
to do-business * l- a& a' P1 ]2 w6 A, C: \5 R5 k
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7 D) o; k4 Z- S& F6 r0 R* d" brt random 360
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6 P! \+ X' b. ]1 H% U) pfd 1" T7 P! P' r6 A' W
9 V: a; ]' B4 R+ k# [" o2 Z8 rifelse(other turtles-here != nobody)[
* M8 }$ w5 Q- h! E4 b% d# r
% e4 P$ ?$ }! \set customer one-of other turtles-here j! e) ~6 ^. G0 R0 ~" o1 V. f
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;; set [customer] of customer myself/ [! [3 ^9 E% _
% ]$ s6 p6 K7 |! ?9 ?
set [trade-record-one] of self item (([who] of customer) - 1)* a+ D# o0 ~! g3 b! H" b
[trade-record-all]of self
4 U& `7 B. Z/ d* Z5 c;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self% y# e+ v: s" A7 k+ {
1 ]/ P* M6 F2 Vset [trade-record-one] of customer item (([who] of self) - 1)3 E: A1 Y8 m: Q( s; M
[trade-record-all]of customer2 ?/ K. Y# h+ T# b: C+ G
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set [trade-record-one-len] of self length [trade-record-one] of self0 u+ X" C$ O: Y2 K$ b8 ^
+ @2 X/ L! G' H# f& nset trade-record-current( list (timer) (random money-upper-limit))
, @( y: Q% f% ]* H$ \' C
; K! X; G! J* O6 \3 J Hask self [do-trust]
8 k1 {& A$ s2 r0 C5 P;;先求i对j的信任度
4 n+ w1 O3 i+ N8 l; T+ G Z
+ Y2 Z! D7 m) y) Oif ([trust-ok] of self)
) O1 a: F* u5 m# ]: B;;根据i对j的信任度来决定是否与j进行交易[( |$ }0 E+ B" `; k/ ?
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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1 ?( r0 \( h6 S. p6 K( O2 A; f' K3 R/ P0 |% Q% A3 y
do-trade
e& L/ z) Q9 }1 F5 E1 @1 @0 l- e# X; P5 n9 \
update-credibility-ijl
0 O, t v$ c, l
7 @- O2 S! |: m8 [5 G7 d( x: ~* n# d) {" uupdate-credibility-list1 v) b; D- }! e! g [; @" Z: Z
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update-global-reputation-list
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poll-class, F( ~9 V, ?' y# ~5 a
$ [" D/ } D: S: `% _( r$ C
get-color
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]]* J/ G9 m; A2 z: |
5 `. X: W& `0 s1 Y" u
;;如果所得的信任度满足条件,则进行交易1 L$ y1 ?( a4 |
. I5 ^. j0 [8 b2 A% O5 Y, m" u[
8 h1 w8 ?3 T6 s5 ~+ O- x2 X& R
: m. }: t! P- m6 ^rt random 3606 |/ \. z* L: A3 \* M
, u+ W$ i& Y# F& q: \' Sfd 17 T. _: {$ g h
, A8 H( W/ Z+ H/ P7 M]
: q. N& T& `5 C" R3 e/ x$ p. h+ j% N* ?9 [
9 F7 ?6 y: V& \+ B: e; lend7 K) l1 d! U# ? R. }3 ?
* m. c+ N! u, y* b3 T4 E: J
to do-trust
1 o" P3 T+ `0 kset trust-ok False) j8 H3 i2 J: M3 d' i
B" R3 x& o1 v/ u+ y3 |
" s) G o8 t- e6 d, P, Dlet max-trade-times 03 a* z" _0 L, j
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( w* d3 ~3 X5 a: h) w* X6 y
let max-trade-money 0
7 [6 x" j2 ?+ C8 sforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
* u" I# v2 k8 |- h% H5 Q" blet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
2 i2 V1 N& R# S
% T" a' h: p* y; v
5 V2 @4 S, [* ^, c: Eget-global-proportion
1 q8 z) t# P# S' Olet trust-value
; I4 s; H, [0 Vlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
) Z- t) r. q4 q) F6 Lif(trust-value > trade-trust-value)/ V8 ^" B7 U! }" O$ J
[set trust-ok true]
3 ?3 {+ @; ?9 zend6 R) _" V* @/ r0 M, C
f; h4 U& T2 ^$ ito get-global-proportion
7 c5 M2 D2 j6 F% S2 T" Q4 oifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 `" s0 S# P* L7 L[set global-proportion 0]
/ @2 f3 ~0 Y% L. B+ o) v[let i 01 V9 ^ R7 o5 j4 r/ d
let sum-money 0: _% S4 y, T3 S3 C. j9 n
while[ i < people]
4 ], a. A0 i2 b* i$ l2 v1 i8 O[
/ X d q" Y& Y5 E9 cif( length (item i/ m" I+ u s* C! o: K6 r
[trade-record-all] of customer) > 3 )
2 @) f# O) }. g0 y" X[! s# V! o w( _/ b
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 M( p' j& [+ ?" u- a9 v
]8 p/ ~' x2 b4 o
]& h: y4 s- k1 e
let j 0
$ u3 C' b: _, R2 M& Zlet note 0
5 p7 R e) T$ ~% F; Uwhile[ j < people]' \4 `4 M/ u# X% ?% d. Y
[. g9 {+ I# f. a+ h
if( length (item i# M! s: K" Z' W8 E: z4 n. T1 K) g9 k. i
[trade-record-all] of customer) > 3 )& ^5 [3 T1 @/ H
[
/ t4 y' D' a$ N% }& Lifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
; M: I. p% z# K8 K! K[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]/ ]9 P* Z/ q- @& j2 _2 w
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]) [5 y: \) v5 ~& `5 T2 |
]' k) a- u- Y7 L k7 {! C- [
]
5 z' [: O3 K2 u; P6 eset global-proportion note
; D2 ?9 e, R' Y. V2 W]
# j" |: ^# n/ W) v3 f* E- {- K' |+ ?end
; n2 C$ Y4 I N' X, Q4 F8 o8 d
! l4 B+ O B7 \- o' ?+ Y5 T0 cto do-trade& d4 ]& } ~* p( ^" T' w
;;这个过程实际上是给双方作出评价的过程
9 }6 e B: {* Y/ r# Q. t/ r9 l; n7 Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价( {! h" L7 g" E- Z" d* z# p! \
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
4 b# o, r1 L# m7 M/ [8 K) y+ {& A$ Kset trade-record-current lput(timer) trade-record-current. S3 ?3 }+ v) D
;;评价时间
- g$ |% c2 g' P& I; Wask myself [' r) O7 z1 w) y- @/ m
update-local-reputation7 J4 D6 D8 W/ d; |" `% c$ Y4 ]
set trade-record-current lput([local-reputation] of myself) trade-record-current
% p0 [( q! e7 q5 n& h' O2 ^! X8 C]% x! J( C0 |* ~! Q# {0 i. z! n
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 M; |( P3 {+ L9 }
;;将此次交易的记录加入到trade-record-one中, K+ i0 }7 v& J; h
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
# h, x. d0 l% m% _let note (item 2 trade-record-current )
5 s) ^/ }) @2 \ [( A+ }set trade-record-current- c0 t9 u/ I' S- ^# G
(replace-item 2 trade-record-current (item 3 trade-record-current))
* P7 t& E: a' K9 h" dset trade-record-current
+ D+ J+ c$ X; `; g$ m# O q: `& x(replace-item 3 trade-record-current note)' k0 d) i7 z( {! X$ S$ R& ?$ E
' H M4 v; x0 x2 {
9 R$ Z7 b# @) w, e9 i
ask customer [' |0 l7 t, j' z, X4 s- s+ ?/ V+ R$ W
update-local-reputation
9 V! |* }/ a( j2 O* f0 G Vset trade-record-current$ a$ i! u( [( d: w: A
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 3 X$ M7 T, G; L2 n9 [5 J5 S" D
]2 f" j4 ?- e' U1 J/ z+ W+ d/ E1 P
9 Z6 T' S1 {: V( Q1 u$ k c! w7 A
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer/ B6 D3 M& K/ v1 Z, A0 G$ S
( q9 T9 Q5 V. f7 o- L& Gset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))) W9 j1 A4 j' \. P* V" V
;;将此次交易的记录加入到customer的trade-record-all中5 x& j) B9 u, w M
end& e( A5 \: _1 o( ^% A1 z4 C3 T
6 X! T8 ]( J; P4 _' @5 X1 o5 K# Mto update-local-reputation
1 Q/ E8 t4 \: Iset [trade-record-one-len] of myself length [trade-record-one] of myself
4 k& s- a& |4 J9 W4 F' L
d+ k5 L' `! o5 D' w' i! F4 R+ w m$ {
' G& A- a) e' v3 e; \;;if [trade-record-one-len] of myself > 3 3 `. z. Z- r9 g; V- l8 z5 l
update-neighbor-total8 ] ~4 F/ Q% M8 j
;;更新邻居节点的数目,在此进行
0 j* l& Q; p+ _2 ?, hlet i 3
' o9 o8 s0 F% ?! W( a0 f9 Ylet sum-time 04 a2 j7 ]1 A' ~9 A# v
while[i < [trade-record-one-len] of myself]6 h% t* x% r' ?. S
[/ K, A$ |0 E2 y. P6 ?5 s. c4 f
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
+ E1 Z5 j8 U% L5 G% K. Bset i
0 P7 L8 C; V4 r1 L) |3 L( i + 1)
# J, v9 }3 o+ k2 U" @, J]
; L# h+ q0 p8 p5 z b" H3 olet j 3& B, m' P. R V# \/ E3 t0 v4 E
let sum-money 0
2 j; F/ R' m/ @! ^) Owhile[j < [trade-record-one-len] of myself]
& Y1 z( z4 a/ U[8 W$ y/ ]- H* K1 T; E& o6 L1 X
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)! q6 ?, I! u4 A
set j
; {7 L% P; I$ G0 W0 ^( j + 1)
+ e$ {9 N7 p, S. D]( a+ P1 x% a$ G- p& {. i
let k 3
0 s& H3 p, d( {" z. B" q9 nlet power 0+ K" t0 W" I& a6 O+ n" F& t
let local 0' `; ]3 C4 q; \) U
while [k <[trade-record-one-len] of myself]
5 ?( L2 p; I( I/ K; O! ^5 {[
/ y' a. G" Z& P& vset 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)
$ s5 A1 s( G" uset k (k + 1)* P1 y( `2 S) c) o
]
1 j2 l. G2 c4 E0 \' jset [local-reputation] of myself (local)3 K+ S2 t, ?4 r$ D$ Y: Z% m; F( J: U s
end
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to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
/ x ?: E8 P" z/ q) O8 ~% z
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! d9 ^% q/ S- [* g- U( nend
/ Y: C! `( p! h; H; Z
" @, e/ O/ P6 b' l0 p9 V# P: ~to update-credibility-ijl
2 R/ L: K% H1 e3 C' k3 I+ m* @ j0 o1 }& r5 \: P4 I
;;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。1 J3 H& B3 l" A( [% x
let l 0% h: s7 g+ G! Y4 X" e. t4 P$ N
while[ l < people ]
* g! ~& J J W1 a6 O3 ^;;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
8 N/ A) E! H6 |4 R) K6 |; g- c[
9 G7 L- H8 F9 X2 _7 E4 A" glet trade-record-one-j-l-len length item l ([trade-record-all] of customer)) e( f. L. P# s9 m- g2 z o
if (trade-record-one-j-l-len > 3)6 ]6 I2 D2 ]' B/ j% \
[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
- P: `1 q1 r* [4 E: Slet i 3
4 u5 G n0 S9 ]2 dlet sum-time 0
- |2 U; a" m& uwhile[i < trade-record-one-len]2 k ^0 }" Q0 u$ @
[8 x1 X) T: G! w; I, r; C) n
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ z1 x L/ U8 t# Q8 h# n/ O( sset i! t" k' A+ g) M" W/ {- [9 n+ r
( i + 1)
# {) x l! ^' q0 o7 e1 W]; W: E2 A0 z# R4 T5 Y/ r2 d* g
let credibility-i-j-l 0
+ [4 m: O4 S1 m5 A;;i评价(j对jl的评价)
/ c. {. { A" l7 _let j 3* \; }' I2 F- u/ h# @9 m( L4 e
let k 4
5 Q6 y7 L7 h" |2 L! Hwhile[j < trade-record-one-len]
1 C' C2 P$ F% ?$ e[* L" D# K1 `8 Q7 ?, P
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; ~( A' O( q) A% f- w2 l
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)' N3 d/ J# H( w, D9 H2 I
set j
' N. E" l3 [ Y9 f( j + 1)
5 U3 J4 L* m2 a) I0 J. f( l] J, s; {- e, a) z3 h) R
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 ))8 Q8 G; {: h& t) V# P6 H0 M' t
5 T- V$ U) W6 ~7 g! m0 ~
# ] | y; P1 Q1 i, Elet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
2 y! D# h: O% _/ a: h0 P6 u;;及时更新i对l的评价质量的评价
2 H# z, {1 Z9 {, q9 E6 dset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
* m+ x; l% t f9 H+ tset l (l + 1)
" W1 b' ]& n, n]- F. o, z( f$ E+ R2 Y+ J
end
6 p( `1 o. G o4 d
( B! l+ ~# w7 y0 f! V. k- \to update-credibility-list6 k3 q1 ^. e1 v) x/ Z+ N+ X
let i 0
# Z4 a, f! T- bwhile[i < people]% x, O6 R9 |; v, N* j$ f% ?
[% k7 ?( I& C# p
let j 0
& m7 p( [4 D7 `* `$ U7 @- zlet note 0% G4 b' E5 F7 ?
let k 0% _9 ?+ Y8 N. i% r# E+ z
;;计作出过评价的邻居节点的数目0 H3 C; i* n' x) D+ l; u! T/ W
while[j < people]* L, D1 t) a3 ?0 x; z% r" e
[- b" H0 F' h3 o( @ G4 T
if (item j( [credibility] of turtle (i + 1)) != -1)
4 l; H5 T( I! C! @9 A8 R4 i. k4 p;;判断是否给本turtle的评价质量做出过评价的节点0 N! b) Z9 o. x" X
[set note (note + item j ([credibility]of turtle (i + 1))); \0 W/ Y! ~$ S; ]" J
;;*(exp (-(people - 2)))/(people - 2))]
, }* K; N( v$ R- f5 k1 xset k (k + 1)
1 k1 r; C! }' ]" ^1 \% M]+ b" T7 c9 `2 R8 O) o" w
set j (j + 1)
9 @" O8 _3 Y! g2 c3 u; D+ D% V]
7 a6 H: r2 ]& T% kset note (note *(exp (- (1 / k)))/ k)- k9 M& _7 v" E9 S# {* Y) E2 h
set credibility-list (replace-item i credibility-list note)4 N+ m5 J3 K/ |( \: F
set i (i + 1); L$ _; N* y) P6 q j
]( f6 t5 L$ p/ N
end- `5 B+ W, b( O1 o$ \
4 a! V9 a( B/ f( N* `to update-global-reputation-list
( c( B! B: y5 k8 j& h! `# nlet j 0
8 _$ k- x+ f. P4 p( F+ Wwhile[j < people]
7 E& I* C. j9 [: L[
' L5 s+ U) M X3 R" Y1 Hlet new 07 M n$ v1 Z+ X, ]; H
;;暂存新的一个全局声誉2 _+ g% r+ n& T- {2 ?1 M' q5 a
let i 0
1 C; o5 ?/ C$ H f8 G( H% ~let sum-money 0
0 H, g- H- A+ ^% _- V5 \let credibility-money 0
9 M1 M( `4 ~/ e% ?' ]while [i < people]
$ k: b' ]2 u# @* _* c( E. J) D[
3 c. g) ~( R) k& g( {8 Lset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
. Q$ ~1 K& i% B- ?4 E( Wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))* Q3 f. C/ ]$ B7 \$ ]
set i (i + 1); Q# i& T. b! D" H9 r8 M6 i
]) D1 T8 S- ~( ] u) f, M; G, r
let k 0
+ p# C+ P; X! y+ h1 Alet new1 0
{* l% C3 q( ~- R- Zwhile [k < people]
3 c# D' \% s& p8 t/ ^8 ][7 v& S; y$ {% f! n7 y
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)
1 c. Y0 Z. e' q* j' P1 {. Wset k (k + 1)# V- V; J5 H0 p& p! O( q
]
4 T* \& E q+ B7 e3 w J) M% I S" V# Tset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 @" c+ I }. T* B. h) R3 n
set global-reputation-list (replace-item j global-reputation-list new)
* Q# u; M! M# ?7 ^1 sset j (j + 1)
4 z5 Q# E( ?- J+ b3 [8 g]
- V$ c. b9 ]1 }4 H* b9 a" |end
1 l2 s9 l8 P# w4 p. `# V+ a# {& {# w6 |: E
' e$ j. D: S3 c" Z3 o/ \8 |4 C" B" k% v3 L
to get-color
0 _& v6 r( D( v6 L; k4 I! I
$ x4 m4 Z9 M0 i/ rset color blue
- K, g, k3 n2 m) e2 nend0 }8 j6 [9 n" D2 N3 c
" i. p) ?: q/ J$ l; x. ~3 T0 uto poll-class8 u B8 P0 ?+ p, D
end8 b. h i8 K4 S" F" V
6 c. f, o; O9 R# I
to setup-plot1
2 |; g$ l( w; ]' W; E# D* H
( }5 G# @% O( h4 n3 Kset-current-plot "Trends-of-Local-reputation"
1 B9 N- @7 C9 y3 p+ U
# n8 e5 O& G5 rset-plot-x-range 0 xmax3 J( c0 ^" s( H& O+ R: @: V
2 {$ J0 V! d5 q$ P+ S# cset-plot-y-range 0.0 ymax! U8 m4 j. b3 c% V
end6 v* s* c3 w( b5 b' ]! o
# P) |% \$ ?. y% Q9 v0 W' o2 M' mto setup-plot2+ q/ c' F) E7 _$ M2 K, H9 S
0 N- m" r* B- Z; B; Z9 [
set-current-plot "Trends-of-global-reputation"6 F1 u' N9 ~7 ?: S; V# S& h
/ b- p( o7 s- _0 p3 z2 h; Jset-plot-x-range 0 xmax: f, `2 ]0 {! J
) I- p2 G( C, u ~6 W" K5 yset-plot-y-range 0.0 ymax( Z# k. \, v- i1 j2 L$ k' l. Y
end* @! c' c5 P$ O5 v4 Z
( f/ V k. G8 A9 vto setup-plot39 j- r3 e' S3 J& d. q( B
* v+ Q5 P" u" @3 U
set-current-plot "Trends-of-credibility"* Q# L' r% k. O, ]: G
* N7 h9 B0 G' I5 l# H+ jset-plot-x-range 0 xmax
1 s% n1 L* M/ J+ A3 J8 w0 _) E1 D3 s( s2 x: ]/ T
set-plot-y-range 0.0 ymax
) g! Z% [3 Y* k$ G$ vend
: k ~/ U. _ o$ o3 g v9 M' z4 C& q
to do-plots4 v1 @- z$ Q s/ P5 z* J* ]+ g# h
set-current-plot "Trends-of-Local-reputation"
3 N8 p9 y4 f, G4 r" pset-current-plot-pen "Honest service"
: z/ M" F8 I1 o( { oend' [* d+ B( p' n ^! h" M$ D+ |; v1 z! v- |
6 f( E1 w5 k& D) {0 q5 h; P
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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