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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
: k' d9 ?! ^- M1 @globals[3 D. R/ E5 T6 [
xmax
Q( ^ O8 w! d( ?ymax
# `! P- ^9 _; n/ i, F0 vglobal-reputation-list
4 a A1 R0 K, k7 k. S Z- \% V4 z- V% a0 ^8 O. \0 e/ \! v
;;每一个turtle的全局声誉都存在此LIST中
; {5 I0 L+ ]# I4 jcredibility-list2 f; `$ X0 d3 ~# |! b$ P
;;每一个turtle的评价可信度: n& s) U/ L: j% B/ M
honest-service
: Q7 e5 t7 A# [unhonest-service, P6 t1 ]2 I0 o% k8 R& B7 \0 r
oscillation' G, }' d% A0 x8 ]$ n. i
rand-dynamic& u: x% `/ Z) }5 c
]
' m8 x9 ~ ?& F6 L9 N1 [& s- w3 i
. `7 g: Z ]* X5 }( [turtles-own[
5 r6 W- O- Z9 c' q8 ytrade-record-all+ u* g* e% k2 w" j
;;a list of lists,由trade-record-one组成% L" D* E x8 k9 M( C" _: [
trade-record-one, | C2 i- R. Q3 U" r
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
3 `% I3 l9 p& g1 J8 x5 T; Z! ]: f/ U6 i/ a) y( A W' Y& S: d
;;[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]]
; M! i: ^; F$ F6 j. e, t. \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]
4 n1 D3 H; z0 O1 |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
5 E1 m8 V6 _# P7 Rneighbor-total
7 v1 @# M& r3 w) p; a2 @;;记录该turtle的邻居节点的数目' H! c5 v& m7 ^- p
trade-time
% o! t6 |4 y4 a;;当前发生交易的turtle的交易时间
) e# h1 M5 ]& p) Fappraise-give
: R- c) q$ ?- i8 A2 |;;当前发生交易时给出的评价/ L& N8 k% H0 F! u' S
appraise-receive% @! V) S+ X( r$ m0 T
;;当前发生交易时收到的评价( t6 c6 ?! @& M8 y; `
appraise-time- V- G: `/ c* w/ W5 f3 V7 ?
;;当前发生交易时的评价时间
+ U# c( z2 s1 o4 r Y+ Olocal-reputation-now;;此次交易后相对于对方turtle的局部声誉& x% l& {) s4 }5 h2 z2 C
trade-times-total
, e% ?6 f4 L& h" X9 e5 u) Y$ _;;与当前turtle的交易总次数+ p* ?2 B6 q5 f4 {% E
trade-money-total4 d0 }% _" k' M4 r
;;与当前turtle的交易总金额
. i1 A3 B; X0 }2 O3 ~$ dlocal-reputation- m3 M, {9 Z% J( X! H6 n
global-reputation
' @4 G' }, h, u% o+ K' e0 Kcredibility
9 K. d& {9 ?% B/ M;;评价可信度,每次交易后都需要更新
' [7 d8 h5 K" P8 y' {4 Hcredibility-all
, Z& Q" H) g! m O! H$ ?4 I5 Y;;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 k* B2 q @2 D+ y
; X) @) k/ p0 q
;;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
3 R6 F) t% N% xcredibility-one
4 S0 _# q8 l t! n;;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* T; K t2 m& W0 ^
global-proportion
" u& s0 |& ~* R% c. v* H$ s% wcustomer
2 |* q3 m& n3 Q) M6 ^7 A" K* Ncustomer-no
2 A9 l/ @, X% Qtrust-ok
4 }# z: A4 l5 k3 V# N Ptrade-record-one-len;;trade-record-one的长度: e; z; i A" G" [* M3 ]$ Q
]7 |! p2 {* u, r7 M' Y4 u: o
: M" T, b$ s4 u4 T0 _* r
;;setup procedure
' P G/ B# _! l' Y% j4 `5 e) q* R* _& c( K& t% O: c
to setup+ W8 E! W/ B; o) _
- _' o0 \6 d$ @: h" g
ca8 m* o0 z% @8 H
( T9 h6 A }- e; u% I
initialize-settings+ N4 e9 I. } n% M
. ]4 J e' L' U$ C/ ^3 g6 Mcrt people [setup-turtles]
$ @8 U0 S" V! |1 W2 v/ D6 l
6 s! q$ R4 ~! u! Ireset-timer
( v3 y" R) v1 `2 M7 X) z1 p3 ^0 @' F2 r
poll-class
2 k* x6 y- W/ p; O
# ?% J' N9 ~3 y4 _8 {$ |: f' Psetup-plots
\; x( h/ e1 p
$ I1 y$ F, h+ N. W0 Jdo-plots
1 X7 a' z4 s8 rend
/ E$ {2 ^7 p2 t9 i
7 I4 t+ m7 W/ }" q& r1 m- T1 @to initialize-settings6 b6 z+ q$ k" B. ]3 o S& L5 }! O
% R8 }$ S o" ?: W/ Cset global-reputation-list []
. x3 ?2 V. C& h% ~9 ?1 z* m/ j6 o# [
set credibility-list n-values people [0.5]% W4 y! z0 Q* X4 B
/ p8 R$ ^9 r# s$ v `4 f4 dset honest-service 09 W6 c, ~- i2 w
# s) H0 i& Y& g0 g0 g- m% ^/ P
set unhonest-service 0' [: W; L4 Y5 ?; b2 A f$ s ~
' s0 x- h& w- Z( v: ~set oscillation 0
3 s9 H6 w( R$ L) `7 F& e5 w1 o& z' u- c! P" a1 r0 e" q* t
set rand-dynamic 0' y a* Z! b- Q
end
' W9 [) b7 p$ K/ E# s) t2 ]6 U/ x
to setup-turtles # Q2 B( @5 E4 i5 K
set shape "person"- _: }* ?7 d/ m. m0 S
setxy random-xcor random-ycor
; ^4 i: E' x; f1 ~2 eset trade-record-one []' Y* o0 f0 i$ w! q2 _' W
# Y! E% e- e0 W0 p2 \8 @# Tset trade-record-all n-values people [(list (? + 1) 0 0)]
2 o a. U U* }3 e7 a# o' \( N' U; \# k+ F! I
set trade-record-current []
$ E. S6 k- w" y0 N9 jset credibility-receive []! T" k! N$ R( ~
set local-reputation 0.5
% q5 L+ ?, V% v+ d* ^set neighbor-total 0
& n' X6 [3 j5 K1 e& N9 h7 u$ \( Cset trade-times-total 0! F& E1 Q$ [ d* E1 _4 G5 a m! u
set trade-money-total 0, I2 \% A @! p5 b9 x- u$ t; u) @
set customer nobody& _+ u+ i* `/ ~4 o0 F1 n
set credibility-all n-values people [creat-credibility]" O+ X7 u6 T" O; o1 n. a( x
set credibility n-values people [-1]* |; l& ~: [8 l
get-color& e! x3 B+ q7 A$ R; g5 P
* I2 |; t# A3 I7 c% Mend! T& `. U; a3 e4 [
7 V1 w" e8 T8 M' W3 ~to-report creat-credibility
! q' l1 M, y" L" }report n-values people [0.5]
' M4 }( |) y/ Q" xend6 o, w& T+ @9 z5 g
, Z; E, |. z" H$ z8 r% L5 d
to setup-plots6 T% e0 T9 u. F3 s
`) J2 V( b' D& i, y) i
set xmax 30
1 R! H9 {" C0 b& w0 \
; q( T" X* Z Y& g1 W# g2 ~% B3 Rset ymax 1.0$ S& Y5 [ |& c! _+ u
5 U7 [3 E$ V8 X/ V# jclear-all-plots
) ~% N6 y9 @. @' C& c) c( u+ y2 u! |
setup-plot13 o3 X! G l! a' \. @
: J5 Y1 ^* g) b: s+ ] J3 ~
setup-plot2% s6 n: O7 M" |) Y
: c o# ]5 i% [% d
setup-plot3$ i# y* d7 P$ ` B
end, b% C8 x6 s9 t6 O7 {
9 \3 h7 D5 ]& z+ y$ h. w;;run time procedures g; d7 Q6 F( `, t: D
7 q# B% l, t6 h3 c1 v4 U
to go$ q3 [; [% F0 ]/ x5 A" Q" i+ |2 {. R
B) L8 H! \# uask turtles [do-business]2 y$ Y- A1 G4 f$ W' @4 H
end
# u8 a0 c8 i; T5 X& f, ?1 L/ f: u; V$ r H l0 O5 h
to do-business
! \6 W, O$ r) z4 T1 i; W8 U c! s' Y9 Q- b4 g8 g. _7 [, i
8 x- ?7 r# {: g% l+ R# i
rt random 360
& i p9 O- v2 L( X9 i* O( y% G" ^
fd 1: L" w7 P; d( ]
4 H$ y8 s+ Z; B+ c4 a0 |: T G/ Nifelse(other turtles-here != nobody)[
2 a0 h" I$ j# |) P! S! \0 @) t$ ?
set customer one-of other turtles-here) a0 l. ]$ j1 `+ m' |' n! e- ]
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;; set [customer] of customer myself
- ~# k2 t1 Z) x0 g7 G, q8 l- [# e. W" a
set [trade-record-one] of self item (([who] of customer) - 1)7 L6 j2 b9 c6 F2 m- {3 j
[trade-record-all]of self
0 ~1 i# l7 {: `) S;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
+ N; R9 q3 Z: c4 [, X$ K( z' V
- x9 l" f1 ~' W+ b) Iset [trade-record-one] of customer item (([who] of self) - 1)
$ V* _4 Y+ C3 e m5 W[trade-record-all]of customer' P7 m* ]3 u+ R5 M. ^' m0 ~7 P: ^
# R" O* _# l" d% s/ @, J
set [trade-record-one-len] of self length [trade-record-one] of self
! ^5 n3 C4 ]' g1 |9 G
4 l1 z2 Y6 F# T+ E' a& m/ Vset trade-record-current( list (timer) (random money-upper-limit))4 w6 t6 H$ E: `* _2 e9 C% @+ s# R
/ o! q! t1 T! Y8 k5 Fask self [do-trust]
5 G$ @$ v0 k$ A2 u6 c;;先求i对j的信任度
8 F+ O: O# a! v& `4 f0 H* V& o. {2 ^3 q6 o3 a
if ([trust-ok] of self)
: W) O; g: @' e# i, u- K;;根据i对j的信任度来决定是否与j进行交易[
. N8 J& X0 N$ D6 }$ O- Rask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself4 |9 D; j/ e" q( M6 p
9 ^( s. J9 C+ |) X9 n% q/ H[: z# Z( v3 h+ @
! Z4 w. Q6 v b; V# D' n( Z
do-trade
8 v6 {% J1 p# K# m5 Y; I! R5 n" ?
6 B, ~. h6 ` _ |" Iupdate-credibility-ijl# s7 G" E1 g' z
! S+ H/ ?3 i6 v8 K( V+ [
update-credibility-list
4 q6 J# k W' O; e6 S
- L! M3 M& z. _; s; m9 J+ G/ N. S0 J$ [
update-global-reputation-list
k' \' v1 d4 S2 g+ Z/ x' H& B5 B$ X# _% y2 B# ^0 X E6 E
poll-class% Y7 A" V% ?- W* m8 \+ i
0 p5 W1 O# L' X' O+ m, q
get-color
4 K. @, k |2 a: ~6 ?+ v/ N7 k/ T# I% Q) D4 ~$ [, ^" Y: }
]]
1 @! B# f. q4 w" }( g1 d I* v' A0 ~4 j, a# r8 x8 L- F( {
;;如果所得的信任度满足条件,则进行交易2 A9 z5 D2 n0 j8 }
5 H1 r, y2 G2 h3 r, V
[ A2 M1 S$ I1 v. e( Z* a6 b* L/ }
* z G! D: U# X$ x( I2 ~8 c' urt random 360& _' H+ X. X$ o8 u+ `
& p3 x' a. L" ^' L6 dfd 1* [0 m% J0 _4 C
/ n1 T v& u1 i" c* E2 w+ x
]
5 E+ E) g# b h6 ~! X) n' [* T! t) ^4 m. ~/ [# F. m
end2 w! @( `' [; r# g# h4 X4 N
* o+ E! D/ |0 i6 b0 }0 |
to do-trust
8 P% D6 r4 H' f, Yset trust-ok False3 S" I, k1 @: w" }) ]; _
% S( o& F2 @: c/ I+ F% ?
& e5 b; @- @& `- L% Xlet max-trade-times 0! K% o- {( s9 m5 P
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
9 }& n. w3 x- c- r2 X' T( ~let max-trade-money 0& w% {9 T7 O, \) T0 t/ x- d% j5 @
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 z" [9 o. a% Y* t3 x
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
) ^4 U; y" M4 |$ E& [# e5 p
. x/ k% }- L0 X' ~/ t4 w& U* u# W! p# V: H) E: c5 m* j+ r
get-global-proportion
) P0 R6 l, i0 S' E* e- x$ O; ulet trust-value/ C( k2 _& J# v' Y# S7 {$ M
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)
8 c1 }. a% {% i" B& y7 E- nif(trust-value > trade-trust-value)4 d# J* J8 U# Z& G
[set trust-ok true]
/ C2 ?0 t6 {8 K9 k7 z' w5 ^+ D S& k( Fend
+ T$ m) f8 V& O# q- Q, {) p! z N( |
) }1 {( f1 T5 \; I# C4 k3 O$ O- nto get-global-proportion
4 z0 z, w: S- u) S% i! }ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)6 h5 Q X' S& Q! f) q$ l
[set global-proportion 0]
. P7 S8 f; d( E/ ^[let i 09 _- S. h& r; r: w) n. O
let sum-money 0
) k. i( U3 [5 P- x2 S# Cwhile[ i < people]
4 [3 j- N! B7 e4 W" C[
, z. l. O2 b0 p6 _if( length (item i- s5 b; G# t$ w/ I1 \4 Z `
[trade-record-all] of customer) > 3 )! y% K& y/ a, `" ?) F+ T
[ q& o5 R. d0 N2 V! y: b
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))8 r+ V2 R N1 {' `. C
]- W/ w( R; M( b- o7 E% J
]
~3 O& J, i8 N e$ Jlet j 0
) J4 C) Y$ b3 Mlet note 0- @) H O9 S7 ]4 }* c& W
while[ j < people]
; u* @# V/ W+ [5 p: U: r[
: n7 o) P% \/ X1 xif( length (item i( O* Q' P% r7 V2 E& q9 m2 C2 H3 t
[trade-record-all] of customer) > 3 )
* o/ ]( h* C& W5 Z" |6 I4 B6 p+ u[* z% X9 m' c7 B, M+ r- ~7 L
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
: U6 n2 a# K9 u4 u) H[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]+ E- _& F L$ F, I1 H4 d+ e4 g
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
6 a; K4 R1 p/ f' @6 N+ }) j; N]
4 }7 P. \: w T6 N$ l$ p]* H! `4 u. j, ?8 B b8 d) I
set global-proportion note7 [# H# _9 r- `% s( f5 w$ G
]8 F4 z) M3 Z% F& Z( A! y) P4 `# e
end
0 w4 v- r. ? L: v) }1 B
& D: ~3 ~: `1 y" Wto do-trade3 u( x, [2 Z* } O+ n
;;这个过程实际上是给双方作出评价的过程
% L$ v H, S s: ]0 K& u- M \( Nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
( R) j7 L0 r7 O9 I, m4 d$ v2 Zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
! z( _( c3 x- gset trade-record-current lput(timer) trade-record-current% i8 u0 E7 Q& r! O! k. m5 t
;;评价时间
6 x( _: U& Y7 @ask myself [
& a ?/ b4 f, w) H: Lupdate-local-reputation4 v. {! p: E, G V$ ^' J/ |4 M
set trade-record-current lput([local-reputation] of myself) trade-record-current: X& D: f x! ]0 ?$ Z7 t+ t& |
]& g% E* e& C2 D( F; P! A# \
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
, h7 e! z/ i% L# z$ D" H;;将此次交易的记录加入到trade-record-one中
/ E) L$ f0 X) x) e% Bset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
8 j: C( \7 o7 p- ~$ Blet note (item 2 trade-record-current )6 ?) s0 ^! u' F2 H
set trade-record-current
9 Q; w+ n1 R9 R& y! _% a(replace-item 2 trade-record-current (item 3 trade-record-current))% \4 U2 {7 Q( j, Y5 I0 m
set trade-record-current
# G8 P+ z! z* E' }(replace-item 3 trade-record-current note)
1 m, H* P$ d p( D7 a4 l7 g$ P
; S( Q3 a3 l' T4 j+ Y2 J( m" R# Y9 L0 Z
ask customer [( t) y, | }/ P( n0 e* {
update-local-reputation
, C' s" ^/ k( |' pset trade-record-current$ b# ~; E( J. X. |8 f1 j9 O3 v
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
. f8 s5 }$ Z9 @2 _( j' ^' g]
4 H, H9 I: S4 }% w6 A/ M/ J) t2 t3 d/ ^7 \& I
; Q5 I' O% E* i& _set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
& e5 `; T8 f# q. }8 g2 {0 E8 `, t/ ?% W) F0 J' b/ I9 b) q
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))$ m1 {: W# @6 q" Q) w) t, \
;;将此次交易的记录加入到customer的trade-record-all中
4 Z3 B! S ^/ d/ C' x% r7 rend8 q: |; W9 g* x) H
: p3 a: _7 @5 B* c A Y ~to update-local-reputation1 N. G9 B5 O* s: ?, i0 i% Y" V
set [trade-record-one-len] of myself length [trade-record-one] of myself) p* `4 v6 y) _3 ^- i
) L2 D1 O' \5 P4 G3 i
3 P2 T2 A {2 y$ A- z# k% m8 a;;if [trade-record-one-len] of myself > 3
3 q/ e/ z5 U8 tupdate-neighbor-total
! S3 h6 t) ~5 i;;更新邻居节点的数目,在此进行
' _, Z2 B' @9 q' b$ C. Y2 rlet i 3
, o$ j6 W9 j8 T: Ilet sum-time 0
8 d+ {, ?: v. ?0 A; g1 swhile[i < [trade-record-one-len] of myself]
! T/ S! X) p3 K7 h[ \4 n& u1 x1 f2 s% B
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 `' r0 i. h3 g, T' t4 E3 Y
set i
6 t! M4 T) }9 i& k0 y6 n5 E& `( i + 1)9 o* S6 v! s' N2 ~3 f( O: x# m
]
" G; J; J4 t% z+ Q# dlet j 3
5 ^( p, F7 o; _let sum-money 0
% j( d' U1 u( Hwhile[j < [trade-record-one-len] of myself]
; Q# c3 N% E% g[" ?9 e' x& z$ ]- E1 E& P2 T8 M
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)" `/ s! P1 K. e4 S, ?0 f
set j
% X+ w3 ?7 }9 v7 a9 U0 f6 G( j + 1)# y# _; N& @. D0 H5 E: A
]7 U2 Q5 X4 v- ?- V; ~# O* W7 k. I
let k 3
8 x) c7 J/ M& u5 |let power 0. v, n( B ~$ f' y& m5 t6 b. A
let local 0' D' a( \, F- {1 r' k
while [k <[trade-record-one-len] of myself]$ P2 ^4 _! H2 H( h" n
[
* ~9 |* V, v3 J9 w: xset 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)
4 |. W8 R1 @ T6 e4 x; E: hset k (k + 1)
* z1 p1 s% b; w( Y( D]2 a8 R& s4 r, y7 A- H8 Y) e0 m
set [local-reputation] of myself (local)
- v# R2 y) R0 ]3 c( j6 ]end
; |' U$ Z( q A& ?$ W# d
( _2 e+ G& O6 cto update-neighbor-total( G9 v- v! T9 g2 [
& C& T& s, W0 ~' |if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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3 E8 P( E/ Z: R' q$ F: e( K* }1 Z5 t
end
8 G) k. S1 P B: x& q
! [& ~+ B W: E y- {to update-credibility-ijl ; G4 J9 e0 j+ V- U! U5 O& Y9 T
9 [9 V0 v# @( s& u! G5 Q6 k. K" K' Y
;;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。2 ^' X9 ^1 J4 `6 ~: y; Z c2 j
let l 0
b9 p/ v' C9 F L2 A! K7 p1 L0 x5 Fwhile[ l < people ]
* H9 A& H q& T- A* v;;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% C) q. T ?) H1 A# C8 j+ [; S1 \
[
% z& v$ t5 w4 j. Y' a, plet trade-record-one-j-l-len length item l ([trade-record-all] of customer)$ q6 _3 C, e; ?/ X$ g6 `
if (trade-record-one-j-l-len > 3)" g3 T4 D" z7 D
[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+ d2 N# L! ?- x1 k& M3 f7 N
let i 37 @3 u! J5 `9 o. v$ V' e
let sum-time 03 `; O: Z; P& N7 |9 Q
while[i < trade-record-one-len]
, x+ p. s0 d' j( G& L# j[
; w! u! b \' G7 Y; uset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
+ M- Q! C8 c3 R$ Qset i* a" }0 V5 P- ?6 n, U
( i + 1)
' z6 d1 W$ n* U9 f], s/ D+ @! ~) x, ~) c
let credibility-i-j-l 06 |& o; U% h5 ~
;;i评价(j对jl的评价)
9 X) b5 F' x& x( Mlet j 3+ M4 T% P3 D4 m: P8 B' k) b4 B- h
let k 4+ f5 ]* z4 `9 Z4 g( ~% m- Y
while[j < trade-record-one-len]
+ ~, i3 c ~, Q- e. p. H' m( Y( w[
1 b3 R7 C- m3 h; Gwhile [((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, j) F* R+ Y* T* 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)+ W" A6 T( K0 I% s; d# @" s
set j
0 H4 j0 i# l/ E7 u9 g( j + 1)
8 r: Y- O/ E# R* v1 M6 A) H# h4 Z]
8 P1 f u' K. e5 w% s" ^( Iset [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 Y. b" k w3 H: r- d; i& v7 r' ], q( }0 C2 z+ Z4 X
6 {4 N @' Y( g5 ^let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) _: R/ t& k7 |6 m" ?;;及时更新i对l的评价质量的评价
2 E7 C' |/ C' D) J. Gset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
2 [& f& e$ `+ E5 L4 F. t1 |/ R* f( Bset l (l + 1)* G( R9 G4 i/ P9 j
]
! ?4 W; P) e9 k8 fend
" k6 G* \# a, |5 P# V" C9 T
) H! p- L) ]5 r% r; l6 m zto update-credibility-list: i! k6 H( [+ H
let i 0! i' L6 k9 H* c9 u- p
while[i < people]
) V, N; m' P2 W# J" y4 k[
; [7 E/ t+ u- o7 `4 W" m1 L& jlet j 0 G7 l. I6 W4 s
let note 04 h1 K9 D @# O: b$ D7 c9 H
let k 0- ?# g2 g+ `. @- \1 y6 v
;;计作出过评价的邻居节点的数目4 D+ h4 e0 H1 w+ p
while[j < people]! b, G( ?5 u3 {3 h3 C. S0 l5 d* q' ~
[( F9 ]8 R# K3 T* o( d( E
if (item j( [credibility] of turtle (i + 1)) != -1)% r: b+ ?& K, ]
;;判断是否给本turtle的评价质量做出过评价的节点! m% X6 z0 R5 V: ~/ V; b* q) H
[set note (note + item j ([credibility]of turtle (i + 1)))! W o" e1 p+ g% C; k+ G
;;*(exp (-(people - 2)))/(people - 2))]
7 A& E% ?# c4 z0 K9 b( {4 n Sset k (k + 1)
. e$ ]1 @5 _% f- n. f1 s+ f5 {]
" `. w/ |5 A% Q; v1 nset j (j + 1)
/ K y# W3 k; D]
. C6 j! W7 X0 i3 Z+ rset note (note *(exp (- (1 / k)))/ k)- [" U3 [- _( y8 r; Y
set credibility-list (replace-item i credibility-list note)$ Z0 F/ q6 |7 l
set i (i + 1)8 s0 Z7 \3 s U, \9 \
]3 i5 W2 I- {& T1 n7 h& W; ~2 h
end0 l* r+ f- }& U; N( f
/ `" O# k# {# I
to update-global-reputation-list- E. K& n( C4 l" J# }4 W/ C
let j 0& I) O" T+ j+ ^* E
while[j < people]
, I' T* _6 @" n2 y W9 D, x: Z[
1 l& K; c' p alet new 0* r r. V$ q3 ~% Q* }5 L3 P/ X
;;暂存新的一个全局声誉5 l6 x4 f9 F( a) L0 z9 b' M- B
let i 0( B) R: e$ ^8 z
let sum-money 0& [$ }2 ~6 I, H$ ]
let credibility-money 08 W% ?" [: x0 f% I" }+ E; A
while [i < people]
$ G2 b7 o# _) u2 J- y# {! I9 g[
" E: |( m+ g" F% J7 i& Y* tset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))), B9 m+ W" w, s& r5 ]1 u
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
8 g$ l) W: ~9 R! v- x% @set i (i + 1)$ G8 b6 i+ ?- @0 X+ E3 t
]' Z$ R, W0 a$ f% r
let k 01 H- Z" Q0 l* [* c3 e, u; b
let new1 0: H3 R0 E H% s0 P o) n& T! G
while [k < people]
# Y- [! I {, `, K2 f- p# f+ U[- w1 ~) S B7 w8 Y2 a* L+ d( O6 x; M, E
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)- P# B2 {$ z# |! t; t7 L$ h4 }3 a
set k (k + 1)
M2 ? q* _* h" r5 u' A1 Y]; @7 `$ h7 [( ]6 I9 F- Z4 q9 Y7 M) P
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % r3 D% z+ s) m5 `1 N% q
set global-reputation-list (replace-item j global-reputation-list new)
J* }1 B$ }. w7 p1 v% nset j (j + 1)+ U" P$ ~5 Y$ g+ j9 W; M# v
]- J9 _" ~. ~9 X1 d; l) F
end
6 z8 V: s- _7 a9 k
* X& r. {9 v1 i) `6 y- [' D" W" O" x4 ]# H
7 f. L1 G. h6 i9 T" W, kto get-color
2 c9 v1 l: Q* p1 x( |
& l% o% u: l9 e+ b L( @, v( ^set color blue
( b+ P) Y! Z T! N1 ?: s* W5 Yend1 H4 i" j3 ^ }+ q- R+ d
6 u5 y: T0 R5 _/ yto poll-class* u- B) \: \/ W' K* Q7 s1 @1 J: ?
end' H4 d3 Y9 Q. y7 L* {/ U
( q, \* Z P( P6 |to setup-plot10 O$ M1 |0 Y" D
7 t" c( l8 K* A8 xset-current-plot "Trends-of-Local-reputation"
; A0 \0 Q# i" J
! D8 ^7 }5 j4 l7 b: ?set-plot-x-range 0 xmax
7 h+ S) b+ i! @' f
# z: W! G; ?4 _" xset-plot-y-range 0.0 ymax. _$ {4 y6 q1 g5 s8 ]1 E8 `+ q" N
end
+ \9 e3 U2 [* q$ }' u# P7 }% x% g# x5 Y# l4 d9 k) M
to setup-plot2
3 h. S- P/ k J) c
( w8 G4 [2 _3 @' s4 G' X1 Cset-current-plot "Trends-of-global-reputation"
: E) A' ]' q3 Q6 @2 Z& p) }! \( E7 [7 Y5 K$ g
set-plot-x-range 0 xmax
3 ~- S2 O0 ? i3 |6 \4 U
O$ ?+ W% ?0 p7 @- fset-plot-y-range 0.0 ymax: Y# ], ]0 q: i% C% w8 V
end
; c6 x. C& S0 L( e6 f3 S+ h# J' I9 J( ~: _! a9 F7 z1 G2 p
to setup-plot3
6 V( X% S& Z1 b: [+ u. h% a K ]5 ~! w7 d
set-current-plot "Trends-of-credibility"5 a' `. c! |2 t l
+ q1 S" G. ^, ]+ ]! b' ^set-plot-x-range 0 xmax7 p) B& R0 s: ?" w. a5 s+ E
3 f1 T7 y4 z' v7 r
set-plot-y-range 0.0 ymax, ]7 l. B8 j6 L" v4 B
end
0 @6 }$ H5 C# a% L' T: |) k9 i( k% }- Q5 H5 v
to do-plots# |, F! O8 E' {
set-current-plot "Trends-of-Local-reputation"
2 x: t% a: ?$ |9 eset-current-plot-pen "Honest service"
/ O, R2 l% z1 ~: T+ F% Eend; I0 Z+ b8 ^1 Z
+ a ~9 c0 ]# Q6 s! K
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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