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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# f/ r/ f0 I1 j! ]: I) }
globals[
" U7 p& q( N5 {) ]& ~% ^8 rxmax
( k+ f$ S$ h- N- I, D0 q( k9 m. cymax
6 A9 ?% [& |( E- n/ m8 n3 U' Hglobal-reputation-list% q% a; p: g% b% }
& M% o! R; n3 Z* A( `- j;;每一个turtle的全局声誉都存在此LIST中+ w" E3 |8 M7 }# l8 c' l" s; {
credibility-list
+ u; N6 m, J& P3 [! K6 V7 e* y+ G;;每一个turtle的评价可信度
" G( M' [! t) \9 N. i% l: Shonest-service
; l+ k+ `' Z- P d4 R: `- @unhonest-service, H% n* R, x K5 Q* e
oscillation* \4 T; \; J# o- v* `- s
rand-dynamic1 k0 f5 D+ m4 N4 A& f4 L
]" R \* w" L& N9 S* f( O5 Q3 B
1 l; s8 b9 z% [- h `$ y& }
turtles-own[4 X: S v5 ^" L/ K4 y: _" D
trade-record-all7 F ~) Y* U7 e+ T
;;a list of lists,由trade-record-one组成- j7 e( ?) s; g+ q. w
trade-record-one
; }0 a) m" D* f3 X& T;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录4 e! N1 j. R6 }; l: ]& b
1 T O! T1 v8 S5 u0 p, t- a% i' r2 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]]5 F. u& t& L1 ~+ f* Y* B3 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]
5 |; e! s& U* F- Zcredibility-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$ e! E# S5 u* R( x. A5 o X* ^
neighbor-total
# Y$ c1 t) f4 I) D! g. |;;记录该turtle的邻居节点的数目6 f: j( W4 t9 C! [
trade-time
! o$ d$ r8 ?! F' M% U;;当前发生交易的turtle的交易时间2 s: b+ A% F# s6 Y1 i# ]$ v' v
appraise-give! q) {+ X' f: N
;;当前发生交易时给出的评价" e! C4 N# r( x4 |4 m. t1 h2 r
appraise-receive
! o- m3 A* O- C7 w3 n5 z;;当前发生交易时收到的评价, q+ J# u& t! s& d6 t
appraise-time
3 ^4 @# d+ h8 U5 a8 D;;当前发生交易时的评价时间9 _% B6 A" f3 k: a
local-reputation-now;;此次交易后相对于对方turtle的局部声誉 o% G1 E/ j1 I, Q
trade-times-total0 O8 u' P9 r8 ^! l0 ^
;;与当前turtle的交易总次数3 N6 M% ~. G( P1 z3 S$ \1 |
trade-money-total
1 t- N' z* G: c;;与当前turtle的交易总金额4 J6 ]( H$ a' `9 T7 q8 f& L2 q( V# Y
local-reputation
" q6 ]8 P. F' I8 \global-reputation
! k6 e2 n- y* U2 q0 G7 A6 \credibility2 x5 e# z. |7 D# A# Z
;;评价可信度,每次交易后都需要更新
! m9 V, v2 ~( m2 A2 e+ ]1 rcredibility-all
6 Y: U; x3 c- [! b;;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
& O$ x7 }# v& l
! Q/ q5 V: u/ q. @8 m( q* G;;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 C4 F5 f- C1 n6 y B8 g
credibility-one
- s' \" g' m4 c" r1 [* b. M+ e$ J9 k;;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" X: \" _" J7 [# v
global-proportion7 p4 N5 C7 N% {/ ?( ?6 L: T f
customer# L& E& \ U, ]3 B/ }
customer-no
, @# k! H. W3 h+ u7 c0 r1 wtrust-ok* }& V% Z8 w' L9 C
trade-record-one-len;;trade-record-one的长度
" |! d. u6 T% c8 Y2 y- y]
- S- _! g. y$ ]! U0 _8 m/ g# }2 ?& u$ T# p% z
;;setup procedure
& R) U& s) h: X9 Y, X! v3 j8 @4 x$ J5 o' k! }
to setup
o6 T$ C/ n* ?+ r$ K% v o4 b- ]7 B. c& e
ca
3 s" @% G8 I K" j' F1 m& Y P
" a1 F4 E! ?" t E+ m$ s* y' Winitialize-settings$ q7 x' G+ t# N/ K4 d
4 _( f3 ]( Y2 ~, `6 ]
crt people [setup-turtles]
- ~7 k( A6 }7 a4 H
: ?1 e- G4 d7 w% x4 Hreset-timer
4 ]7 N. ?& M0 G, o' N
, \4 [3 ?6 s/ A& }3 j3 U" d& _poll-class5 d+ {: m" `* X
2 u3 Q8 j" _; P( C' M9 R+ ~7 Msetup-plots8 q/ p7 o1 N3 k6 P
) E, \0 ]5 J0 W+ F! X( [
do-plots" U) Z2 B$ G v+ b& d
end6 s7 J7 g8 |. U$ D: L: e
& S) u6 a( b" J) f
to initialize-settings9 g& D4 \% I/ G% P3 B! T( R( U
# ]1 S& M) V O
set global-reputation-list []
$ e+ D" o4 ~- ~' M% C j B' X/ Q$ z& T- n1 D% y4 D. x+ `. M% @
set credibility-list n-values people [0.5]3 v0 r/ L' v Q8 Z, b6 O% F
2 E- y, B' }# A q/ }set honest-service 0% G1 g. U4 |8 m% z
5 `; h; Z" \- W* ^
set unhonest-service 0
6 z% W5 { F* v9 \; ~% c# m: M \
; U0 K4 L% Y5 x- gset oscillation 06 \4 _, y) H9 b3 @1 g$ ]- C; u
. k1 q: K6 R$ B) Q
set rand-dynamic 0) e# ~0 L0 |6 ~ U* x) F! T
end. A6 V6 B# r: n
4 v/ X4 F* @% m9 u' [
to setup-turtles
" U1 t0 N& o1 l9 s5 g. W9 O% dset shape "person"
1 Q( s. k! z( e0 esetxy random-xcor random-ycor
4 Z9 e F$ ]: g) x% J/ t" x1 oset trade-record-one []' L z2 t! g) c5 @: c: P7 j
) e, t5 I8 n7 ]/ s/ tset trade-record-all n-values people [(list (? + 1) 0 0)] * R' k6 a$ h9 ?2 P# s6 x5 g1 R
- a7 A+ U3 |4 V9 n- P
set trade-record-current []: u5 t, k1 G4 h5 Q% f
set credibility-receive []
1 }/ X) Z8 X! ~" Dset local-reputation 0.5
/ n( K l, n" J* f9 l4 R6 vset neighbor-total 0
' F9 f/ E, |3 M5 p0 L6 W. gset trade-times-total 0$ B5 X9 K2 V7 N& s3 A# F
set trade-money-total 0
, G" B% e9 ]. ~! G# Sset customer nobody! x) y+ C+ l( N( ?" F5 r/ Y
set credibility-all n-values people [creat-credibility]4 e& q/ ~) t4 K
set credibility n-values people [-1]. z$ L/ l$ p* S9 f% |7 r8 \$ a
get-color
" s; }7 g3 U( }# @' H( |$ I2 g n9 k6 ?* O
end
$ _! k1 T8 v8 B0 y8 `7 ^8 J e5 u
to-report creat-credibility
/ r4 q7 v$ q# M+ A: Q# ^, kreport n-values people [0.5]9 W. _% p/ y" V) Y. [
end
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to setup-plots
0 _2 c" Z! ? j, Y, }, d: [3 L
; v4 o5 Q/ H# y9 R6 lset xmax 30
9 p8 D5 v. E5 r+ n: U4 X
7 B' k; \" H! g2 @! d, k( bset ymax 1.0+ a) ?8 x, J3 W/ u% _7 y' A& ~
P8 \/ n# L! E$ a2 E sclear-all-plots, z2 K; \1 y# O! w* L5 f8 w2 O' ]
( _1 U+ A R+ h* s3 D; E. T+ s& y: {setup-plot15 k# ~, _3 R# k7 `+ X* @
" `( F6 @4 i9 v/ ^
setup-plot2
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& G& x8 i; m; n0 E$ Q5 W. p7 zsetup-plot3! i/ \8 }( O9 p$ x3 k5 X7 d
end* X4 V7 d5 c- s# I$ J$ }; N/ K+ n
: ~; j* L E: h3 Q3 n. j0 _
;;run time procedures0 |: k q( P, M4 n& p8 B
) ]7 b! x9 z* z% q1 j
to go
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1 r2 a/ i, B* M ~7 r- Cask turtles [do-business]: w- A$ t; E2 R _. H( C
end$ n$ q7 i$ Y3 @' f/ y- k
: A" F, t# `+ s8 R6 n2 l
to do-business
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; N: p3 E- R& Y) {/ ]* T5 z2 c. Art random 360" y5 t/ i- B* b. j& @0 ], N
( d+ M$ h: N+ |0 @7 H* ]
fd 1
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ifelse(other turtles-here != nobody)[
, v7 v1 O5 G% w2 x! S, V8 q+ Z! o8 J7 H. h4 Y
set customer one-of other turtles-here
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;; set [customer] of customer myself' T' t5 t) t9 u6 z- q {
8 g- w, w j9 @) iset [trade-record-one] of self item (([who] of customer) - 1)! Z* ]8 m% n! x
[trade-record-all]of self5 |! o$ X) ^% g
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( r# U- _1 I' r8 X. V& z9 o* N+ m7 e" B$ h/ w/ Z. f6 X7 Y
set [trade-record-one] of customer item (([who] of self) - 1)
8 C0 \+ Z5 N/ t% E7 C: _8 [[trade-record-all]of customer/ e' [% `# C8 J9 g
3 s* M! K. K$ l. ~, o1 ?set [trade-record-one-len] of self length [trade-record-one] of self. w# ?6 c5 |( Y. x
: A% S# m7 H/ s. H q
set trade-record-current( list (timer) (random money-upper-limit))2 F0 o [; s+ j; L0 Q5 n
, r% e) Z0 V2 @4 w+ t1 o
ask self [do-trust]
I, A9 L' f: b9 R; c$ Q& z;;先求i对j的信任度
2 b' Z4 \' l( k) K# c+ a0 F; L; W
if ([trust-ok] of self)# n' a1 f! q2 ^9 R
;;根据i对j的信任度来决定是否与j进行交易[! H3 S4 c' o/ w: `8 j# k
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 h2 {( j' D, L) a) ]+ O& k
4 J2 z- O! Z# I- `2 U4 E[0 x. q5 d2 l% t- r* ~( f6 B
2 i5 P0 i) e& t! Y: ~* r4 Ydo-trade
u8 w$ O7 r; q
' D8 F7 y# |- A' {) r! c+ ^update-credibility-ijl/ U. A/ B) E4 P( j" p- O
; t1 e7 {! @6 C8 L. supdate-credibility-list& q9 G N9 V$ b+ f& u+ I
# m+ U P/ h, @
" y/ ]% r y X6 I
update-global-reputation-list
: ^/ Z, {3 ?+ H/ W" U7 a, l! I5 C; l' `
poll-class1 p+ s: G& ?: V3 Z! U% d
. j1 U% t: v# X3 {# \" A- |( Iget-color2 ^4 R7 m# p. f" C
! q. Z3 j/ g( t, F]]7 B3 B4 Z! S. e) j7 q# O S+ g
6 E- X$ j6 r0 A/ j" R
;;如果所得的信任度满足条件,则进行交易7 n0 W0 r7 e! u# J2 T9 {% m% d7 H
2 u' X N7 r( {/ [
[
+ w- d3 r' m1 Y8 h: y7 _ {& E$ `9 S9 G3 X3 S4 j
rt random 360& G, t8 Z, P- A0 q
4 A, L/ X1 A) m X4 i6 W( H
fd 1+ C$ ~2 o' m0 f7 U: K+ D
1 m, `0 S8 h9 Z" h% q- i
]( i8 S& I# f0 v- q) L
7 L; @& L Q. X3 T$ v( }+ iend
& q" y& ?+ u5 `! s& q! y2 d" R7 m4 L: i! {: F
to do-trust
' W: R# o/ F4 {8 t7 ] ]6 Hset trust-ok False
# G5 a: z$ v$ D6 S2 O3 A A5 h: _) h: f4 V6 q& n0 t: t
3 Z! W2 U0 S9 M# B" o& P+ Slet max-trade-times 0
1 X: l, Q4 ?3 u6 z* d& y- y2 _3 Rforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
# x/ i9 n; e6 R1 d, x! Nlet max-trade-money 0# p. X: U, D$ H2 Z; U k" z
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]7 X. E- f6 } Z3 ]
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))6 L1 X+ U7 p* E1 n% g N
# t8 z; d, H3 Y! A& z
9 V3 l8 z1 m. h1 h; N$ b! `
get-global-proportion8 [* S0 [: }8 I$ ~. ?5 V/ U
let trust-value
7 }# e7 m; X3 C+ I! b+ P. b! J; clocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
: \, G8 p& s" Z; f2 ~ ~ R/ @3 \9 ]2 Kif(trust-value > trade-trust-value)
! h6 d8 _. ^! L! S4 s: T4 \[set trust-ok true]
6 P5 a$ F9 h; ?! @: C4 Lend
+ b9 d; |1 D0 h; B: `
8 g; d; f- a4 q8 Bto get-global-proportion* B6 a; ]9 Q1 J/ @ P, O9 h5 h
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
( o# I! N* R5 o* f; ]* R( a" u" D9 \[set global-proportion 0]% \; C$ Z; M2 s+ b( m& W
[let i 05 y) F$ e3 J( ~
let sum-money 0
$ `( M) H6 c7 x; Ywhile[ i < people]* z+ [6 P6 f2 \' Y! Y* R
[
6 J/ X3 r! j: ?* Z Bif( length (item i7 T7 {5 e" ?* m" b# y: }
[trade-record-all] of customer) > 3 )' s% [+ Y$ o- F( u
[
3 i3 W2 }! \2 i9 ^# Q3 c$ Oset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
2 b; K: x( G- g$ u- M1 G]
1 Q; a- x2 `: }1 ~& N6 l]& Y5 k+ C" u5 H+ ]
let j 02 K+ f/ x! M/ p/ J/ g( j% i
let note 0
( U, z. a+ N. M: O9 Iwhile[ j < people]; ?( c+ Q z4 `* |
[
6 b) ?! e! A8 ^! lif( length (item i
. L/ e. U5 Q# \[trade-record-all] of customer) > 3 )
1 a. L* D! F$ N; F+ @[
! `4 L8 V' z) _. I' }+ {4 Bifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
! X- Z/ j7 u$ |+ R' x6 G& z[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
) J2 X/ b$ }) N v8 a: P0 g[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
* ?4 W4 T$ }: A& C8 ?" L* {0 Y]
/ j# e& ~, R; D# I1 }] e2 Y3 a3 H: L1 Q0 i$ ^
set global-proportion note0 t7 P, h D+ g9 O
]
+ B/ k& Q2 d; s8 B% F3 V$ `* ~- X! T7 ]end+ k# |) t4 _ ~: n; W, `
' ?: l6 H( G. t! i/ I0 S2 r9 H! [" dto do-trade# {: C+ n! @8 t
;;这个过程实际上是给双方作出评价的过程
7 t+ U: }7 S9 D( P. J0 Z0 J; zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
* k: B% a; |$ E9 r/ k$ l4 w* { E, Lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
: Y, G. m$ q2 R) c; q% \set trade-record-current lput(timer) trade-record-current
+ v' p M/ h: R4 o# q5 Y;;评价时间
1 D9 [9 Q! ?2 h# ~ask myself [
3 B% b& F4 P5 v9 Q6 cupdate-local-reputation7 D/ q! H" p q2 M- Q
set trade-record-current lput([local-reputation] of myself) trade-record-current
/ c2 _1 b" ^/ b7 q]
# A0 B! M. I, _' I' s9 L" U% T0 Zset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself; d0 J2 S, O2 n' o- _8 z
;;将此次交易的记录加入到trade-record-one中* L2 @. }: y0 S: r8 m) N
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
/ |3 h; F, Z$ llet note (item 2 trade-record-current )
0 R2 i6 v) n3 R, v/ J e( A. Oset trade-record-current
/ s6 V+ k5 O4 }% L(replace-item 2 trade-record-current (item 3 trade-record-current))7 Q2 T) n4 f" f2 l, J
set trade-record-current1 i! f6 k5 ~, b1 ?* S7 ^4 b/ e0 E
(replace-item 3 trade-record-current note) G8 a7 C* E) C" ]5 g4 D, S) m: [9 c
9 L) c1 M. o) e- g! o# l
+ ^4 ?: d2 z2 ~, w7 J# ~- cask customer [, g' V" w$ C1 |, r( b/ e; L* v
update-local-reputation& K0 z$ t; S0 }( ~; l
set trade-record-current9 z9 g5 h0 z9 Z6 U" @/ x( Q" T) P
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
- V* B. A/ ^ F' d1 X* \] @, C1 C% D3 D* F$ C
; `) ^* C$ k8 t, h
" T8 T$ j2 w' Jset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
* {- s; t# h6 j1 U e4 \) b w
5 L3 p1 R* _9 o+ K: c% e, Tset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
% C: ^/ ~2 ], L8 R T;;将此次交易的记录加入到customer的trade-record-all中
; ]! v0 _1 U: [. P7 ?3 C9 ?end$ D8 v- F& r5 u* O
2 x* T4 B8 ]! M, B6 _to update-local-reputation( f! `6 @1 I% N0 _
set [trade-record-one-len] of myself length [trade-record-one] of myself
8 Q$ t/ O' N) l: C( ]* E2 F* M8 O3 A3 h8 B' O( ~
9 s7 E& Z- W6 P/ k3 `# |
;;if [trade-record-one-len] of myself > 3 8 t( A2 S! P' W
update-neighbor-total* d3 g: V( v3 b z: U% q8 ~2 T
;;更新邻居节点的数目,在此进行
/ J; x7 m3 v% N0 M9 Klet i 3
' Y" u4 m; B$ g6 W& R; g. xlet sum-time 0& j7 N u1 v4 h1 V" K3 L8 n
while[i < [trade-record-one-len] of myself]3 I+ _' Q1 p* U" n3 |% h0 y0 f& s6 }
[
8 i) `3 ]3 f$ l" L, h; A2 Rset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
+ i* A9 D- |+ ^ B" xset i" S6 ~. N+ ]% v4 D, ~3 @
( i + 1)
/ A9 L& j7 ^: Y+ E$ x6 f* z# V]% Z4 |/ J5 R5 E! G6 }
let j 3
5 U5 M' a. h5 p; r, `/ p3 Slet sum-money 0
4 b* G* q6 H5 C) s# Mwhile[j < [trade-record-one-len] of myself]
. k, q+ ?$ Y0 k1 B4 t' r! C! p& i[
; H3 l! ]& h! c/ O0 ~$ m9 W7 r3 hset 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 c9 F F+ c! V+ l, `set j
$ N4 v$ H# P" U5 j; X4 f- Q( j + 1)7 K; F: D, W3 q0 J" H+ [6 C% \% Z/ P
]
* L/ y. P. u- c6 a4 C1 ~: z) Vlet k 37 }) W! K, c7 G Z+ ^; \
let power 0
9 C8 q" m+ s5 E, F) X. jlet local 0
! N, J6 }4 x. {while [k <[trade-record-one-len] of myself]
7 O6 v0 d# o8 ?+ u! A[
# Y2 H1 e6 U5 p% o5 oset 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)
! C4 z6 c& e' V1 X" nset k (k + 1)$ E# [3 Q" o2 s
]
) F; Y3 s! W7 lset [local-reputation] of myself (local)
- K% n% j! \! k- n8 mend" n4 P7 I5 x' q5 v- u, h; \6 ~
4 U, h) N% G8 C8 rto update-neighbor-total
9 F; l8 r% \0 g* ?$ d) ^/ C( D! G# `' X: \0 S k( n' x; D
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 f- ]3 d6 v3 T0 k3 U# n8 u
( d' z7 e) g l5 a& t r% `# q$ q% _5 C6 C/ {4 W( E; W
end+ b5 J4 V5 Q/ A$ K- v/ F- ~
1 M, q' x" F; y4 j/ L! |9 [to update-credibility-ijl
0 q- J# X- U4 X
- y( U9 U* {% S3 N7 t% y+ v8 s& |;;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。
0 L$ b8 b# e( m$ w6 U$ Nlet l 0
& i# s7 w, G; @( H- gwhile[ l < people ]/ r; T$ \! a5 b6 g
;;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
2 o5 q5 H: i" E9 u" c: y) [[
' z+ @: F6 T; d5 _) dlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)2 r- @9 ~) N: m7 Q9 u# b# t9 N
if (trade-record-one-j-l-len > 3)' F) c5 ]' a x Q4 @1 Y s5 A) R& ?
[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' j, U! J! N5 B$ Y! Q( ]
let i 3
- u! o$ q+ X" p6 P7 L4 k$ plet sum-time 00 r. W% [! q8 G9 d
while[i < trade-record-one-len]5 a: o' v Q$ k) C1 Y0 ?9 v+ K( M
[% O. g- t, Z0 j8 Z$ f
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )4 @ u* I0 S+ Z
set i
3 q$ l6 S- Y5 ^& h o1 E4 A( i + 1)
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let credibility-i-j-l 0
8 t! w) ~, `6 L# ^/ c- };;i评价(j对jl的评价)
/ \ F f( F1 J" a* ^7 Mlet j 35 E( W; \7 |% w2 Z- O1 M; V
let k 40 P8 S7 g; G5 |
while[j < trade-record-one-len]
) v9 g; i* G9 q& ?8 N[
0 Y, s' _( ^! v- _! w; ywhile [((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1 @9 e+ ]- ^( T) u
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)
1 H# N( q7 m, l5 ` P! Q5 pset j
5 Y# k i6 H" G% c( e6 d3 y( j + 1)
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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 ))5 O+ b3 K9 H0 w
) c7 P2 F! W* T6 ?: w% a
% O+ v5 X' @) {. W, t' R
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))2 @+ c+ w' S# \
;;及时更新i对l的评价质量的评价: c. U9 D/ u# j+ ^- Y# J% ?
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]% ]* A+ |0 y+ _ H( R' T
set l (l + 1), V) y% V/ t+ h2 w6 b4 }3 U
]8 H2 ?1 c9 e+ H- l9 O
end
. B, e) B3 g) L: R+ r; M. m
$ B+ W7 k" q, n/ eto update-credibility-list1 C0 M5 g! l# i
let i 0: X$ _3 x! J& @
while[i < people]+ ?1 ~+ m- s- p' D0 v1 B
[" s n$ [, T0 G: u& i' y" U% X5 M
let j 0
! z" t: B3 J0 Q9 Elet note 0; P& ?! _( O2 Q% ?- S
let k 0
6 F5 f7 ]3 c m+ X;;计作出过评价的邻居节点的数目; u. y* }; W, c8 c: x
while[j < people]: i: q" H0 h/ j$ J, h- i) T
[
& g' Z3 R& Q) r0 Z6 \if (item j( [credibility] of turtle (i + 1)) != -1)' [2 G& H* r2 z4 X
;;判断是否给本turtle的评价质量做出过评价的节点
/ ?8 n1 o. H |[set note (note + item j ([credibility]of turtle (i + 1)))
8 O3 G1 X0 c* W;;*(exp (-(people - 2)))/(people - 2))]5 f5 Z$ T7 _5 F. G! T
set k (k + 1)- j$ Q [! I1 `1 W0 ]. u8 R
]
2 u2 I W! p' t! Y: W; vset j (j + 1). F$ l! P5 W) ~- O8 t. x- J
]
5 |1 n' J& \! f; [& `. I+ A! y/ }set note (note *(exp (- (1 / k)))/ k)* }) n" D2 @/ s0 G+ v0 }( M
set credibility-list (replace-item i credibility-list note)' [. z1 ]; s5 K( \7 k4 d
set i (i + 1)
' o' C9 T5 Z1 l# ~/ b2 x- k]
: F& m$ C. c/ Yend" m i1 J& A1 p! l. i! Y, M
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to update-global-reputation-list/ A2 X4 T" f# L( X8 I |! i1 { |
let j 0
9 p; `2 l4 A; U* Awhile[j < people]0 S5 Q2 \' ?3 Q! i
[) U9 W, h0 Q2 V
let new 0* O5 M3 D0 N8 k- ^
;;暂存新的一个全局声誉" v5 G6 _% c5 g. n/ }; s5 u& _
let i 0
5 W" u# V$ [+ jlet sum-money 09 F7 i8 U$ }; W/ o5 ^
let credibility-money 0, f. v; A7 ?4 ^1 v; h& ~$ p, O
while [i < people]3 ]- h% p( Y0 U# o
[
) q0 t) ?- A. j$ {set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))% W6 u- W; N; C; q/ ?+ ?1 R" q
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))9 W7 o$ R) {: ]
set i (i + 1)
( {" j5 U n9 u6 N]
6 ?# C" \ @6 Vlet k 08 w$ J# C/ V" N0 @4 C
let new1 01 g! j, u: d# k2 n
while [k < people]
1 w5 Y. K# y9 O[& [% z: k8 y+ l, [3 @
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)
4 a, M. f6 s4 t2 t o, dset k (k + 1)4 C: B0 f) ~% ?. Z5 n ^
]; B9 j/ g) _9 T
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) & W+ W1 W" u& i' Y6 ]8 u }
set global-reputation-list (replace-item j global-reputation-list new)
9 j; l+ x( S9 T% z" S5 K' ?set j (j + 1)% c2 S! W) e3 c+ P
]
+ u, H `& _/ r/ h- ]1 [4 J0 Xend
% D0 z1 u3 e2 G" P$ z, Y
9 W- x1 D* D, R( V$ ` W
* }( b" ?; k3 C8 [ G3 b9 a; E# _' h, u% I, b
to get-color
4 F: l" t: {8 d6 x
( h. I2 C4 K: N; A& {8 I5 v( mset color blue
+ Z( y& m+ \, P& \/ {end) W0 B. A' k( Y% x; H
; O0 E5 R5 K3 {/ L$ Q1 `
to poll-class
8 p6 |' X; s9 j; x1 X; z( xend
; J6 Z7 m9 H! J- ~* t9 h3 W' d. ]3 O- a. @$ ] _
to setup-plot1
' ]' l' l1 \4 W6 N6 O( D+ s" P, Q: ~, o) X, V$ k
set-current-plot "Trends-of-Local-reputation"4 M& @. B7 `+ ?0 ~8 c* E* g
# d' m% }+ o/ }( @! x* ]1 X& R
set-plot-x-range 0 xmax
, P) g: x9 c) r1 b! C2 t6 X8 z1 ^2 k0 W# u ]& t
set-plot-y-range 0.0 ymax
4 Q Z3 U J* s Send
# w: B1 p7 X2 r7 k r+ r2 H$ V' _6 ~. B2 }
to setup-plot2' A$ H% M/ K$ v
7 }8 k' `8 }; r4 g6 P! iset-current-plot "Trends-of-global-reputation"8 E7 _ X2 K J! h9 I( J
% W$ p- L4 F. f- D5 P" D
set-plot-x-range 0 xmax
4 R, U8 E: ~, ^6 X1 S- o5 i3 ?3 a! i; ?* m0 K+ _
set-plot-y-range 0.0 ymax
# k* B( p g+ j/ r0 F% Cend$ m. N4 _' q9 Q, b4 M' l* k0 y
Q- J! S& Z( p
to setup-plot32 |- i- W u. @' R6 m( q8 d! N
0 o J( X4 ~/ F1 {- r. dset-current-plot "Trends-of-credibility"3 y: {; r+ @0 \$ ?; Z& a
6 I4 X" {: H$ c; L1 h+ b
set-plot-x-range 0 xmax8 q3 h& P! b% j2 U+ \. |3 W- m# O9 [6 R
( j n8 x8 W5 E# n& R% Y+ n7 Q) M
set-plot-y-range 0.0 ymax
% b8 A6 V3 r$ Gend7 \1 g. q$ F% F0 {. ~# d
2 x1 d" `7 L& g3 l# ^' ato do-plots9 U* S3 K. r- K/ @& J2 R
set-current-plot "Trends-of-Local-reputation"
3 `8 K" E& K* H8 T; h+ sset-current-plot-pen "Honest service"
+ Z3 c% v" x/ H+ w+ wend" {5 V) c# x7 r3 k( ~# Q
, ~, A8 Y2 W8 t! t3 m9 D; @[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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