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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
( x2 c$ z6 D: ^2 `globals[* a: I1 F7 C% t) h9 v* `( ]) l' B/ V
xmax1 W$ K! K0 y) y* Q6 Y# X
ymax
& A* f6 y9 s& g% j) Nglobal-reputation-list4 Z$ V( a' ]( e7 s2 N |8 ], z
5 ^" \- e& K* @( h X* ];;每一个turtle的全局声誉都存在此LIST中
$ T. x. p, r8 }( kcredibility-list1 D4 e/ q! I+ Z& Q$ b/ x$ `- }0 d
;;每一个turtle的评价可信度; U+ m* x! j9 Y
honest-service9 h" U. a2 z, U& i
unhonest-service7 S) I* _, I( H$ M
oscillation4 z' ? o8 J2 M) T
rand-dynamic" B. o0 `' }- V8 f8 y
]
8 B% x- u: a2 `" r( G7 d- y6 y' L, X" z& A# Q/ j
turtles-own[
# j* x/ {/ R: h; ]: a8 H; d" |1 Otrade-record-all
- o' R1 {2 N( s2 ~8 S; y* m, Y;;a list of lists,由trade-record-one组成
( W! a8 }* l0 j1 Xtrade-record-one
+ T9 h9 R! L9 Z6 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# r4 I0 h+ ]' U. V; `( ^3 u
u3 R0 v# b7 [1 @5 K/ S/ i;;[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]]) Q" @7 G9 {# i; F& A5 O
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]
7 [9 B" z4 @! c7 H# Mcredibility-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list4 s2 } f) ^7 t% l7 `& l
neighbor-total
* j- t V, T* K8 A;;记录该turtle的邻居节点的数目
8 M5 K% Z# E( B2 L! T0 }9 j1 f6 x2 xtrade-time
$ E0 @4 X7 i5 C& L& q/ P+ ?. H4 c% O;;当前发生交易的turtle的交易时间
( @7 f% D6 u: E# S/ {appraise-give
# M1 ^% f& v- D, G;;当前发生交易时给出的评价
3 S% j! Y! ]. A T6 J' Aappraise-receive. W) S* d3 E6 P. Z
;;当前发生交易时收到的评价) i/ _/ F$ \, X2 V% W0 w" n
appraise-time6 |; @6 @. {/ T- S+ P. R
;;当前发生交易时的评价时间
4 F, a9 b0 @0 D' o% S2 |3 K* Wlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
" V. [& I9 a9 ~5 `' S* i. h: l" Gtrade-times-total
3 W, u; m6 g8 l;;与当前turtle的交易总次数
5 q) p3 g2 b" |9 t/ f% M' n) ktrade-money-total
[' l8 u" N7 i7 {. O;;与当前turtle的交易总金额! h" ]7 x# D- d# L& _
local-reputation
1 _( W$ m( l8 `/ ~+ x+ U6 ^# {8 Nglobal-reputation r, h8 F5 w" N9 G: v
credibility7 J5 W4 n$ G" ^4 E
;;评价可信度,每次交易后都需要更新, w2 c$ d+ s5 q4 Y9 R0 N: H* b
credibility-all
# n* V( X' k$ ~1 @;;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
8 y0 c# D$ @ C) U6 ]3 W
7 R0 H" U1 Q/ v( X, d! Z;;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 ~; e' e( F! X- V/ K3 t- S
credibility-one6 X! Z4 E; h% ]& 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& } s. _) l( X+ b. L) b0 }
global-proportion) a( x$ ^. A4 @1 q1 t: k4 u
customer
, Y; J2 m( a9 X! B3 p/ C V; Rcustomer-no
3 g; v! q% J8 ~1 ~; z7 E& Etrust-ok
% n. M5 a! w4 s$ q$ }trade-record-one-len;;trade-record-one的长度& r, W* c; n; E/ ?
]* l+ n4 ?3 \& i0 O9 V7 a4 K
% T! }. u" B6 d9 @
;;setup procedure
( o5 `5 V1 z# |: m! Q; | a% U k T$ y
to setup2 a$ x- ]: |3 |6 k/ H
' _! o3 B6 K+ @1 l& d1 Y
ca s2 D% [7 M1 p) O; i+ y6 K4 Z
* t) h9 ~: n2 ~# i$ d7 l5 I
initialize-settings$ u6 C/ ~ C& H9 X
, p% T% ?. t2 U; z% f7 {3 e/ ?6 `crt people [setup-turtles]9 R( o& ~+ [; Z6 i8 o" h
, z" a0 Y; Z% S$ \$ w$ G; ^reset-timer0 U: x1 e1 t- X5 r( L8 J
) [% F: D) X/ F3 Qpoll-class5 Z0 e, M5 j. _9 X* D0 L5 B/ j5 Q
# A0 y' Y' ^" y9 f6 Y+ [7 X1 J
setup-plots
) x5 z \3 }# K0 f1 w- X8 T) w x& N+ ?; o3 I p) w5 g) g! @) f
do-plots; } h8 |7 R7 p
end
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to initialize-settings1 N0 c" }+ c0 \. u; B* Y! I# g
3 I; l) _! w9 z( w/ r( n! J: n: M2 Lset global-reputation-list []
% J$ K8 y- O9 i) C X2 A6 O7 e9 r: ^
set credibility-list n-values people [0.5]; e0 w0 n5 u7 g2 E% w7 } B9 K$ r
: o3 @8 }' d. ~
set honest-service 0
1 `5 k, k( c# s8 l5 @* x& x: U: `
) [1 N6 Q/ m$ d0 @- m$ `# k" @set unhonest-service 0( g) z/ h) p+ k
5 Q+ l' B. E- D0 k
set oscillation 0/ O8 f `0 P9 r, G. Z0 A
. G# J6 U6 l7 y7 {/ J, I5 \/ zset rand-dynamic 0) o0 O& A* X" W# V [' u6 F
end" W" k( q6 M! R6 s+ Z
6 \& |8 L& L7 V' N! B" z, ^
to setup-turtles
! k }4 Z; O# U4 X# P& U! dset shape "person"" h4 x8 b7 ^9 }$ ~' `
setxy random-xcor random-ycor
7 N! j3 k( n( rset trade-record-one []3 \, m4 y1 A& k+ n8 K: Q
, g4 y) K( n' R6 {1 r7 Fset trade-record-all n-values people [(list (? + 1) 0 0)] 3 B( O7 F5 {% h3 A! `$ _
1 j( h& `3 `) I8 o9 d2 W5 ?set trade-record-current []
, M L z) h/ R# zset credibility-receive []
( W) f( n, ^0 a3 J9 t1 gset local-reputation 0.5* o( q. _6 ~ E% m. w
set neighbor-total 04 S1 R) l% `; Q. F) |& R
set trade-times-total 0
. d6 P9 k1 c' O8 @" B# R) ?set trade-money-total 0
& L: @: J. c6 B' t. @. e0 uset customer nobody/ k1 D: s; b$ B2 l: g
set credibility-all n-values people [creat-credibility]1 k' r! e* s: a9 T- G: a
set credibility n-values people [-1]' U# D. _$ s9 f0 Q
get-color
& X/ ]9 r: l8 x# z, S2 h6 I
+ b8 n7 L( Y8 tend: R" t( J' L \; j% C2 B
' U1 {8 m2 q( u& [: Z, e! \to-report creat-credibility
4 R7 y0 I' `% Y0 o1 ]4 N" p" Jreport n-values people [0.5]5 S1 D7 S" r4 C9 H4 K+ w+ J
end
# u% U- V* s: j: A/ A6 c+ ^. E+ }+ E9 C
to setup-plots( D! d6 }/ c+ R3 C3 @, r* P( A
8 T1 Q. A. n1 m4 c1 G# A$ Lset xmax 30 \, X3 @8 W0 t0 d" c. M! [* J
( ^$ `1 ]: N2 yset ymax 1.0
( E1 B0 j9 z5 @% d+ q9 T, A2 r7 i: c0 x) g
clear-all-plots
$ O8 E' S2 E/ G( m/ o8 W
, g9 v! D- @0 k/ Z9 F8 ^setup-plot1( J6 [9 M9 C+ S8 O8 {& }
; h! n' o. u$ `& Y2 p7 n. Esetup-plot2; g/ s0 n4 @6 `! S& f* S" G3 _: S j
2 L: |, C- u' Q7 I
setup-plot3
) Q: Z( [8 }) w- G% f2 Uend6 p+ |' R: i) E9 b
0 G2 _3 t% X9 ~$ U! i- i
;;run time procedures: H! V2 ]/ k7 x+ l5 D
# j" t. W! T& k+ T/ Q: s8 \2 |2 F6 C. n
to go
9 h8 m) x8 m- L! M: q9 l5 V" @9 Q) j: T8 I, G+ h9 o6 b
ask turtles [do-business]
q: x& B% p( Rend
$ v4 Q e- a0 c, V: J# N6 N5 \- q
0 g$ a) \" ~1 ~& ^# V6 V1 Bto do-business ) [3 N# V3 @! A& E
' \! O% w( y! ]. m O
[; |* j3 q, x$ g
rt random 360+ R ]" r8 r, |- W8 L% j' H
4 O1 z& G" T6 }
fd 1
1 g5 s) M' }" i, f& V, _% |
: |' u. P4 \* U# O2 W, h, sifelse(other turtles-here != nobody)[: u4 P( b7 X2 c# P* ~7 }& a, _1 q
|+ k5 T2 F( k/ Tset customer one-of other turtles-here
/ K2 {# I0 W- ?# d6 [: I
7 H/ N- a5 V) I& o r% i- A) a;; set [customer] of customer myself
, X& I% i1 o* ~* ] x7 M) e8 m
2 l$ M6 U4 r4 i6 U6 jset [trade-record-one] of self item (([who] of customer) - 1)) |" b8 E( B1 O) i8 h7 E: j' B$ M/ R
[trade-record-all]of self; M h4 f, R$ s1 i: b
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
, f4 u, g/ U2 Z: ?9 Y% a# M
( d# [7 K2 r1 z3 @! E" Lset [trade-record-one] of customer item (([who] of self) - 1)9 a% z+ \, j- P
[trade-record-all]of customer
. g$ n/ g; n& c( h' @* q7 b6 u, E
$ j: M( F9 V9 T$ C6 X" [6 O3 Aset [trade-record-one-len] of self length [trade-record-one] of self: I: @1 O: s0 ^) p4 u6 q% u$ a
) s" W, G1 S4 rset trade-record-current( list (timer) (random money-upper-limit))9 [, i; g! Z" G8 c
! l& c. W1 K0 W1 ]4 M" ~9 Nask self [do-trust]
* ~ l/ D, ~7 r# T;;先求i对j的信任度( y8 w5 N& v' {9 p0 e0 m
7 V1 G8 _% ]) K/ qif ([trust-ok] of self)
1 `& H% {" o8 j;;根据i对j的信任度来决定是否与j进行交易[9 l. u) o" }+ ~6 x2 p1 c
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
4 T6 h6 |8 |2 i0 R& i# w. t/ P; e J5 ^ a3 G& x
[
. {, ^( _# w% O
8 k- e: W! ], Q2 B; ?& i Ldo-trade, F- J6 o% p9 ~# G* I, B' y; X
A5 a7 ?6 i' O7 x ~& Qupdate-credibility-ijl
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3 d1 l2 l! E# {; [7 k" m/ yupdate-credibility-list
; j+ v1 [. T* L2 E& q4 P' n5 O$ y1 O7 v% @) V7 [
! P8 _9 X3 C5 z+ {' qupdate-global-reputation-list
; K$ ]; r- \ M* l* d- G1 X" s. w% c9 X! L" v# ~
poll-class. K2 I; x+ m% `" P9 g' B
- y, U+ q7 P' Q7 `3 E( \ V
get-color
" w8 P! [& A; S/ d# _ m3 |) N- Y5 I) o2 V
]]
9 M8 c' E* h8 n) B; M. `% ]. b# k' o7 Y$ g- i! ]
;;如果所得的信任度满足条件,则进行交易) [; p7 e! U9 U& V; D/ V
8 e/ D- j" Z3 u9 ~; Q) o& E6 j" {[
- i5 r: M m4 l1 @3 e* u5 L. M8 W' D! F) @6 b7 C6 L9 ]/ K6 H- H1 R
rt random 3606 d% d$ y- Q- l' M% Y- \
3 H2 a, u$ E& r3 W
fd 1
" G! }: Z9 [9 v& B2 z' a' X) D8 v5 q
]8 U3 L8 ~2 j0 ]2 w
! {4 [$ d) s6 s( t6 y$ `end9 J9 Z5 ]) v% e
) \1 b0 o4 ] l8 a9 G+ b
to do-trust \* x O+ s6 ^$ J* ^, J8 ?
set trust-ok False
0 c/ {$ X( `8 ?. k; V, ?
. T t2 B" E+ _* j* S' A6 U) F# w
: i* N& {$ x0 r) olet max-trade-times 0
* l Q+ t q ^' J% Dforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- x4 @ o" D3 v ]% r! u. b) W# I
let max-trade-money 0
7 K& |2 F$ W) o( M# M* Cforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]6 }' ~8 N5 p3 l" i1 q7 h* c
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
* d* `4 d& R6 q v( G
6 k0 r: k0 V% o& O' @% r) Z$ A3 q( j2 ~3 `3 f/ W/ d
get-global-proportion( C [" Y# a% z2 T1 {: e& ]
let trust-value
& e/ `( O/ k% L/ blocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
' N* n$ E3 e+ ]' nif(trust-value > trade-trust-value)0 |0 q: Q5 f: @ `
[set trust-ok true]& q/ D! a7 O" p# u& S2 T# D
end
, ]8 P* `- n. t9 T: m. B3 N1 q+ p# Z' t0 g( m
to get-global-proportion
6 r0 G$ u+ g2 G" r8 }- c7 Uifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)3 m4 B6 J$ o, s4 G
[set global-proportion 0]/ k3 }# ~% t! p
[let i 0
5 d. a7 H+ C2 v. C8 K9 ~) b( K E! ]let sum-money 0' k9 {" r/ b: q8 L
while[ i < people]
" S+ I0 T/ p& b% y6 K[
- {/ c3 q, {* z- dif( length (item i* T6 [. T4 c$ X/ G8 W( t- O" u3 Q
[trade-record-all] of customer) > 3 )( p6 i, M$ r0 j1 w( Z( l5 O
[
7 }3 b; L M" f2 Z3 H2 _set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
/ {* H% H/ M" K/ T& J+ i; l" E]2 b- P! k+ q. s; A; J2 c
]
3 P, l- q& j/ G; J0 W+ x: C8 Nlet j 01 h5 u6 p! A2 I7 W: C& o! h' k" k! _
let note 0
4 u F6 p0 q. v& t! W8 B$ Q+ Gwhile[ j < people]
& [- N( g0 X! k: ^# p1 P& C8 o3 K4 h[
N$ o% D8 b4 v& `1 L( b9 uif( length (item i
% E \ W' Q% h# X1 a[trade-record-all] of customer) > 3 )
N7 S; Z2 c4 B% q9 W* C7 r[$ ^- e; }; Y3 I2 P6 y F
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
. J0 m6 t, \& R# f, e4 p' c" N[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 T( c. ]5 {/ [5 A3 Q1 U( w
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
/ ]+ M8 [# \- c' t6 r; ]]8 A: N3 [, M, a3 H& ?8 m2 Y
]
9 x( ^) _8 G; Tset global-proportion note) ~$ h: Y9 w; B7 F r
]
1 Q9 V" M" Q, wend
% D/ ~6 b$ r" p
4 \: M# G) M" b0 _to do-trade, }( ] I" w1 {; O/ O5 M* d
;;这个过程实际上是给双方作出评价的过程# B- C! {. e6 b5 j0 s( ^" P
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价# _! Q1 E3 s# G5 ^& r
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价' k7 k9 j( g6 s) d6 W; b
set trade-record-current lput(timer) trade-record-current$ L0 A! Y+ I/ P6 c. ^: h, |
;;评价时间
0 _! ^ g* _' d% C( nask myself [
/ E0 a# J; C: t0 W/ ?: b1 iupdate-local-reputation
3 R3 i6 g- j* D; B J' U+ Rset trade-record-current lput([local-reputation] of myself) trade-record-current
, l. G" h/ n3 v* q]' @; |# ?3 e6 r2 L0 p7 g
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
6 \! |4 ?+ ?* ? q;;将此次交易的记录加入到trade-record-one中3 z/ w/ U9 L; K# c5 V
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself), f9 {7 x- ]" C8 ?
let note (item 2 trade-record-current )
! z( V: `- m6 O! Q& K1 Iset trade-record-current
' K* L: B0 D" g3 g% @' p(replace-item 2 trade-record-current (item 3 trade-record-current))' D4 w& I4 n% a3 x1 Z7 j
set trade-record-current; {* l- k; M! `! g `' b
(replace-item 3 trade-record-current note)6 Q* |# W# r0 d( w$ |' k
, U1 ^0 I- g1 [
/ `3 n2 L( N. Q; U2 `1 [4 lask customer [* o5 M5 Q! G# B. M* I$ o9 M
update-local-reputation
# B, u( ?: i( ^3 h( L p- [' Lset trade-record-current
/ {$ `% N* L! B- b* o; ?% C, T(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
) K# p* S/ _) h4 i1 [5 t8 ]7 P]
K) E5 _7 f A1 g
7 I9 J! o3 K ]- L' `( a
* v8 H D7 R2 M+ b E# h* F! fset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer7 z" P' h/ X; P6 I1 _, a( F
7 @9 t" t* o# @( g1 eset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))& @" ]/ L+ U j) K2 v$ i" b
;;将此次交易的记录加入到customer的trade-record-all中2 z2 X; P9 q# G# s
end L; d; S3 R s S0 K* r4 i# l
z# Q+ q& u! J w$ U" y P; j
to update-local-reputation4 W; G" r( m- B2 D* a: a! p
set [trade-record-one-len] of myself length [trade-record-one] of myself
8 S7 Q) v5 A9 T; x+ V. h8 R; A" ~/ r0 u0 t5 O w
3 {% f/ L$ E6 a) z
;;if [trade-record-one-len] of myself > 3
8 L+ i6 z0 H" o, r. \+ Qupdate-neighbor-total$ j1 K; B9 ^- ?% H) P
;;更新邻居节点的数目,在此进行6 p0 {" K0 m& }) u# {
let i 3
' [, B9 b% R" e" C1 n' Blet sum-time 0
. k& D( K$ q3 Owhile[i < [trade-record-one-len] of myself]9 y9 G8 i6 }( E' F
[
+ K6 N$ X" N6 k! Q X8 `set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )( s& D! p4 E' f% ~0 r
set i" v1 l1 T. ~7 c- f/ k4 ~3 f) R
( i + 1)4 [$ e, [8 d- @/ E7 S! N# [
]# S: }! V: u( f. U- T0 s7 e
let j 34 }) }2 m/ R3 @# Z$ a
let sum-money 0
9 [. M5 b) v+ \while[j < [trade-record-one-len] of myself]) U; i) q5 m5 A* }/ ?. [6 K- J) r" `
[
, _8 P5 {+ w( T% q% Q* Q! Dset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time); `! Z u; Q2 f
set j
. k8 l" n2 `' M1 E& @, C( j + 1)9 S5 T) \" V1 x) ^2 P$ x
]
8 T. f) m/ ?/ q; o4 ~* Jlet k 3
% Y2 D& i/ z! [5 Vlet power 0+ g" q/ X) k+ A; q5 A8 n
let local 0
2 n, _( ?4 B# p! ]' B8 c0 ?while [k <[trade-record-one-len] of myself]) V6 L" h: V- u N E) p
[
4 l& S+ G/ x4 M% t3 yset 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)
& ]8 z& s" b% Vset k (k + 1)
8 e8 G( J* `# []; c5 W- }6 o2 X \3 b5 p! w+ T
set [local-reputation] of myself (local)- t- g+ I) S7 R
end
M5 N5 _" P- a5 L0 ?! l2 t8 B1 J7 A4 u* T. W" e) G
to update-neighbor-total& v9 s( a$ b3 m9 O: [' f
6 T0 v; O7 l1 U3 j
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
; x7 j ~; S/ o* g& r& X1 P' @: K$ K$ `% I \, n* Z! ~0 R( y
$ M9 R( H1 D _7 {end
4 L* q9 {2 e+ `( Y. Z+ H. T0 t! O; k- R6 g9 \
to update-credibility-ijl / W7 k7 g x4 v, P' l T
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;;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。' l% a' H( }/ Y8 F% ?
let l 0: e, @7 @ V G% z% l- |
while[ l < people ]
: {+ A9 m: Q/ L. n/ e;;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% y: h; L& m9 o9 L
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
- N- M& A+ \: F A; P& b9 Pif (trade-record-one-j-l-len > 3)9 `; L* S, A* V) ~* n1 z5 p
[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
% f- }: c, J& U- ^0 o/ U, I) Dlet i 3
2 k9 e4 H) K( P# a0 \( ~let sum-time 0
% O$ N' Y# E% t( k2 ewhile[i < trade-record-one-len]. j4 U* m: Q% e z9 u% D+ V' z. _- G8 T
[
# F0 ~) v2 i: H! @set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
4 D3 O8 |3 J1 J3 C+ O! x% q& oset i$ m2 z4 B" x6 w
( i + 1)
$ L' q$ h9 A: p. u+ v0 s7 C! []
/ O6 w* b) H. |* Dlet credibility-i-j-l 0/ U8 E- u* B& y" g( T- h* h; t
;;i评价(j对jl的评价)
7 _ q* E. r9 @% h# C( Olet j 3
2 t$ Q0 i/ E* i- i! l, U3 }let k 4
8 u2 C3 T. V" Y1 a1 l$ x9 ~/ uwhile[j < trade-record-one-len]1 K" F5 F: u+ C' {+ L/ P6 }
[
: ] h2 I h0 M5 L7 t- t& _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
: D: X3 L8 l( rset 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)& K# C: J9 ^9 g E
set j
8 g/ e& @: T$ ]) m7 y& c% _- g5 J( j + 1)& Z+ x& o8 L, U2 b
] p7 M3 Q4 W% ?& Y B* P5 n
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 ))
+ a# d$ v# u' p5 X' D* f8 o8 A1 F( U( e( N, p7 n
6 [' y, _8 W9 T/ Mlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))+ D- N5 x; u5 H2 D( A0 n l$ I
;;及时更新i对l的评价质量的评价 e T) S: S$ @$ \. o7 a/ W
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
( ?$ H8 p( N: ~2 Yset l (l + 1)7 D4 G% ^( y0 a+ z. z! ]- F
]
' `& @* t$ y8 u1 @) T: [& E% Mend5 k( o" O: _, X
4 {% b' I. K: Y6 [1 w1 tto update-credibility-list
- I' i% t' K J* o/ Olet i 0
8 L' u Q/ ?: ^4 k- y/ c2 Lwhile[i < people]
9 }$ d8 r7 M4 l7 Y[( }# T- G" F; s% q; V* W9 ?' B
let j 0
1 U& k0 O9 V/ x/ f1 qlet note 0
% [( @' f; Q& E& Xlet k 06 s# b% M# E5 K' F
;;计作出过评价的邻居节点的数目
H; v! y, @. i1 dwhile[j < people] h+ L* s# a- Q$ R9 y* A
[
6 q& W. S3 F& wif (item j( [credibility] of turtle (i + 1)) != -1)
- C" o6 w0 }" n+ I$ c ]. i9 W;;判断是否给本turtle的评价质量做出过评价的节点
+ }5 |- C4 |! b/ ~. w8 v[set note (note + item j ([credibility]of turtle (i + 1)))
1 m8 z$ J$ i& C. F5 m. ~+ t;;*(exp (-(people - 2)))/(people - 2))]8 @, i1 G- }9 s t7 J6 r9 U
set k (k + 1)
* g, E1 A, I$ e]
8 _: M! d3 l9 o- S# y7 Cset j (j + 1)
+ X% m& Q8 O6 m]
1 d3 G0 Y; p* A9 \" ^1 F! oset note (note *(exp (- (1 / k)))/ k)8 p: {# x/ e* g% [, D7 M
set credibility-list (replace-item i credibility-list note)
+ J. O# S( s: S, i* Qset i (i + 1): |; ]1 w0 r- [
]( w3 t" m) c3 S( J" A3 m6 A" V# J4 U2 b
end# K" ^& }6 Q( B
, Z) G* U* z6 r0 ^3 E1 s7 @to update-global-reputation-list5 @' g4 }) s$ }) B" `
let j 03 s' ~) T4 M: |$ V3 `1 S
while[j < people]3 e! a% h1 x) N& p1 u5 c& T# a' @
[
D, Q; i! U5 g w) slet new 0
) P0 Q8 v- l u: N$ r9 z;;暂存新的一个全局声誉1 _) K9 ?2 |1 C# z8 U3 Q# ~( K
let i 0
4 ]3 r) S3 c6 W, D3 `let sum-money 0* {( d& t$ j# v$ q4 \4 J6 n
let credibility-money 0
8 b) _3 y7 E) v5 V/ x- X& Xwhile [i < people]0 E, ?! V! i7 v5 K( I8 Q2 `3 I* k
[2 a5 q k# N( d5 Q6 D9 _ ~) e# z- P
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! e4 Y7 N% q7 `
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 Y( |6 e% V3 f) o) s& ~, vset i (i + 1)3 |4 |" `8 z' ]: S8 q3 [
]
1 \) d. Y! [7 Olet k 0
* C2 u( }4 M- f6 t0 g8 k6 Mlet new1 0! f' @7 \$ a A4 I/ \; D! h2 C9 V1 \
while [k < people]( H; Y5 H# `0 s7 O- f+ N% F
[
: H Q+ @" L8 Q9 K T" xset 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)' G: D5 |$ U) Z. J3 y: J- Y
set k (k + 1)
* i, x+ A- `. V! K) s. s]
! o; T9 p5 ^+ g/ jset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
. V, c+ C! k+ v' q3 Lset global-reputation-list (replace-item j global-reputation-list new)0 y$ @4 b# c5 S1 U+ @
set j (j + 1)3 G8 t$ x$ W5 T1 n w
]
4 Y9 t& \4 m4 ~; x/ I j; }end5 [: e9 A8 c$ }4 n4 b# Z1 s; x
$ @, C! Z" k$ b$ _# \& H8 z( h
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" p7 e1 x% S+ `; y1 ?to get-color
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set color blue# ?: ]& k/ @$ i$ L
end3 x0 Q& L% r9 @7 p
4 n1 Y( A9 W3 q: | p0 rto poll-class/ s8 u1 Z) D5 t" O; |- U* ]
end) A: p+ L7 |5 K
4 x( w L9 l$ `to setup-plot1
5 s0 x# v0 k k% ~
! ^, e3 p; X+ G7 T/ e& Oset-current-plot "Trends-of-Local-reputation"8 X& I$ ?: ^7 \% z+ f* V6 ?" T( v
6 ]0 W% V' T+ ]8 ^: s; a; X* _3 `set-plot-x-range 0 xmax
7 l- h* s6 B" n+ v! e6 G: p- I9 ^/ }. m" ^2 h6 A! {: P0 s6 J
set-plot-y-range 0.0 ymax
" g( ^4 j, V3 j: @end, O0 w. j: F) o& h* [; D( d
F9 V" u( u/ a4 O0 T4 T, sto setup-plot2
0 W! Z' b- J) L- X0 W+ u8 }" n) A" J O9 ?5 B; W+ e$ Y N7 ]
set-current-plot "Trends-of-global-reputation"* [# n9 n$ b. z+ D* M# h( M
5 @% K5 N( P# O
set-plot-x-range 0 xmax$ G( `2 w% W9 C' ]- }( ^$ X
4 K5 g c) G0 n0 G7 x" N
set-plot-y-range 0.0 ymax) D: M) h& ^( S( }! Q3 a) m/ y
end
! Q1 @* ~. t% l" K r; y. F' q% b/ z9 h$ b+ r# _
to setup-plot3 U# t: n) b8 A+ h. M# s8 c
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set-current-plot "Trends-of-credibility"
2 k) r4 ], g: L# J- D) @2 W) ^& V" [* I; i+ C, a
set-plot-x-range 0 xmax
' i* M0 @5 o0 {/ w# a% F6 o8 d8 g' a) E7 [- l$ |
set-plot-y-range 0.0 ymax; w4 U) e8 P5 i/ x
end
2 e. Z [& }, k2 ^+ q1 g! R6 Y$ V- E
: w6 d" P; W$ Wto do-plots# F, ?- e# g ~8 H1 Y+ z5 n- ~
set-current-plot "Trends-of-Local-reputation"0 j0 s3 ^# _% f' A
set-current-plot-pen "Honest service"
8 E2 `& l. ?9 w' cend! M. u, I0 x) O. G# E% H: ?
9 s% {3 D# q, d9 G* g; w/ @[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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