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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% ?/ Q) j4 u. G& H
globals[8 h1 b0 Q9 K3 x+ M
xmax) C. }! o9 I- o! T3 T+ c: Z
ymax9 V; i2 Z4 e" W5 H( `& {
global-reputation-list
, u2 m7 M& K c% y9 W
: D9 g$ F7 D+ m6 e$ D4 b* Z;;每一个turtle的全局声誉都存在此LIST中
, S& s$ O: g$ Z; }5 Gcredibility-list0 W- i; i! D S" p! Q! F3 v0 k
;;每一个turtle的评价可信度 `2 C! U9 k3 ^
honest-service
2 I, v5 v9 _/ R8 ?! \0 Bunhonest-service; z& \: Z) n p9 P4 P
oscillation
2 r3 ^0 i1 y6 x/ G/ j) brand-dynamic
+ i1 ]+ \' `) K9 r, G& Y: k( D, b% Z3 i]
. R/ B, P7 |0 G c/ p1 L0 Z6 L* S' M) X
turtles-own[
1 \, K6 I3 l6 y2 z9 atrade-record-all
5 W2 n6 \9 e. @;;a list of lists,由trade-record-one组成# t/ r9 t7 m" Y* g9 ?
trade-record-one
$ R. w3 A5 Y! }6 D8 b/ e;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ @) w U3 D) W0 H1 B- |% V8 X2 D% W# W$ k h ^: B7 Y) ?3 X
;;[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]]
_# h" d# E2 Q# n8 Gtrade-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], h _3 F7 e, p% [
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
! x# l' ?3 q& ~7 q3 D" L" l& ]6 Mneighbor-total. h( r! P; W- ~- |
;;记录该turtle的邻居节点的数目
* Q* Y, {3 A8 ?/ z" {5 _8 itrade-time+ W/ S# b" C0 E( C; Q
;;当前发生交易的turtle的交易时间
' Q1 q" y# w3 b* Q+ H X* u+ pappraise-give
: p$ p5 [3 p/ u0 d2 B q) g;;当前发生交易时给出的评价4 o0 {- k& D& @* i9 D* {& c6 ?
appraise-receive( [7 h$ G5 j0 i- z( F( P. _
;;当前发生交易时收到的评价
- C9 g( k2 f J# R1 o+ p1 aappraise-time+ ?3 }$ p9 w* w* l- J' j
;;当前发生交易时的评价时间
% {4 d% b( t# _( B5 `local-reputation-now;;此次交易后相对于对方turtle的局部声誉) N) w" z S, q9 X6 ]& X
trade-times-total
* F; l/ Q1 m5 Y4 h# K4 r4 h;;与当前turtle的交易总次数
: y9 F7 W! Y& [! ~trade-money-total
- t- a. [% @. y;;与当前turtle的交易总金额$ r# [% b: Q( ?9 q
local-reputation; n3 S5 ?! N" T0 R6 F" z( R0 e/ W
global-reputation& \6 N9 V) }4 ^: e( J' K# x
credibility6 ]: F" P# Y$ b. ]5 G) g# w2 \
;;评价可信度,每次交易后都需要更新
; \# z/ H8 ]' o0 {5 V8 scredibility-all
+ v- e7 q: g1 m- f1 |;;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+ I0 E T! \4 U# }
" v5 s U' v! l4 a
;;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* M( {7 U( J& _( }3 ]
credibility-one, }1 G% g# Y% K7 f5 N) F) E
;;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% Q9 x" j3 J
global-proportion+ w0 V: V; I1 u; n7 a1 `0 `3 P
customer/ B, ~( W6 a& G; ~1 f% n
customer-no
9 k& V# N: `6 f9 ?& _trust-ok. }. ~5 l% V3 K" n
trade-record-one-len;;trade-record-one的长度1 ?: S. ]5 }2 z
]( u; N8 ]( z, e% [6 ~ _7 N
7 r& N. z. R4 L3 H;;setup procedure2 } j( }) e# @1 N; N/ }% O( w
6 m' I4 } ^. h2 C
to setup
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. b, Q, k4 v7 h# W I) M4 e5 wca
9 v) h w& Z7 F3 P1 K/ ]0 U8 ~; Y
initialize-settings2 Y" W' u( `3 H1 l: x4 k, ?4 Q# c
# [; u1 a( J+ s# p0 R6 m/ ?$ mcrt people [setup-turtles]6 M8 x* F# L1 o2 H2 g
. }3 b# J( C+ D; U* ^reset-timer
/ c" U7 k2 O i
. v. Z. D" x. X6 m9 [* Rpoll-class
# K; A; {" f/ X; k5 Y6 M" Z, ?6 L# u+ G; W5 `( T& g+ X- R# d- A
setup-plots
; r* z# c2 `% V5 @2 i( |* e& A' \' N. c, R7 b1 p3 z& ?5 K8 c
do-plots1 J% y$ L( \/ N; p' I
end- X4 ]9 `/ n+ L" t# H4 a
& u/ T/ v- {* h+ j( d
to initialize-settings
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set global-reputation-list []
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3 I# L+ c$ w* v7 s" y) \4 Jset credibility-list n-values people [0.5]5 G$ }( Z% Q) f4 w. B
" _6 S, z i1 { J; q
set honest-service 0
+ h4 j/ x( t; Z% e/ W( ^
: ^+ {! M" L1 l8 ]/ [ }* G0 @set unhonest-service 07 g+ W& E5 A+ q1 b+ Q4 Z9 a
* {; S- @3 } }! i) C
set oscillation 03 ?+ r1 ?$ {: N$ G, H' A- a
2 G$ o8 ]( g6 S6 y* Cset rand-dynamic 0
# Q9 N5 O; g& x% t& X# R6 Cend
" M t' f: U7 P h3 g& Y' p7 x
& F- H, z5 s- D l: S0 ?to setup-turtles $ Y* d! |/ W- D' C
set shape "person"% S4 R8 {0 w% t% w5 |# q
setxy random-xcor random-ycor. E% ~4 b# S F4 }
set trade-record-one [] S# }" l6 Z8 f. `* K
5 t, F1 [) [, ]# w/ S' O
set trade-record-all n-values people [(list (? + 1) 0 0)] ! V8 w& ] }, F" j, M2 @
) }" R% M) G r& G4 P* E
set trade-record-current []
9 a/ w+ n7 q1 xset credibility-receive []
5 L B7 B* o8 X4 j% Rset local-reputation 0.5# d! M+ i1 Q6 J) M8 y) G
set neighbor-total 0
- _6 p1 {' U Q" b6 p; L: Kset trade-times-total 0
+ X3 I' |% e8 E3 ] O6 ~set trade-money-total 05 {+ O6 ? z' m; N0 F
set customer nobody
! {: P' S# Q) U- Y. y! Dset credibility-all n-values people [creat-credibility]1 M9 Y# D4 H. O$ T0 t) H
set credibility n-values people [-1]' q4 h' d+ q+ q# v1 h1 y
get-color% [4 Q5 D! U% q' w1 ]# j
" N) K2 H! \& f; O9 J5 ~end
# Q4 P: o: ?! x" _) _5 \6 }2 l/ [6 m9 M! b9 j S; w* d
to-report creat-credibility% N0 [+ E2 Q$ p; L- P k0 `$ T
report n-values people [0.5]
! |: i) `' c+ j/ fend
4 h8 {8 H! B a4 M1 v0 V
8 s g+ a4 X6 ?to setup-plots. G) e$ y8 |* w \7 L, e% L
* J0 F9 a1 O, R9 P
set xmax 30" F7 ~- ` v" F
& M3 R; I1 S: g- Uset ymax 1.0/ @# H: a$ q0 s+ P" X. M
5 | ]+ @7 y% }7 q# w. G" h3 V
clear-all-plots/ ]0 D( B- X0 ?; ?# e# m
9 x* Y3 G0 y$ s/ y, H, b
setup-plot1
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3 w1 z l3 b. Ssetup-plot2$ P1 ] U' [9 E7 Q8 D
1 m3 R# E+ F! X8 r
setup-plot3- }/ c) k0 p- \" l0 t6 u
end' }, Q8 |/ b# f& p2 b
+ b1 v% l+ q* X6 _7 ^+ Z, S;;run time procedures
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to go& Q# P9 W/ E$ S$ @! @, B4 @8 |% U
# L7 G" m. V( u% Uask turtles [do-business]
; I9 |( O6 U; n. m! w7 H# ?end
9 S: R) k- ]# q" I% p0 [- q; x7 a- G) y; T& l' V& L( h
to do-business
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% m/ o& G( y2 u! L0 R8 rrt random 3602 `1 F6 A& C0 V
* ~% j6 L$ U' v7 r$ sfd 1% w% N/ |! F0 ?! U6 {" k9 k
2 \1 w8 J- ~. ~ifelse(other turtles-here != nobody)[. U. Y+ m9 W6 o
. z- x c2 `, _, Q$ ^; R nset customer one-of other turtles-here
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3 [( o2 p7 B/ I/ \. d;; set [customer] of customer myself
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" C) x) ~. B" B9 Pset [trade-record-one] of self item (([who] of customer) - 1), { G! _, { u- g( g
[trade-record-all]of self
6 q$ f3 }) [9 G, t- r;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ x: Q& F. B4 }( G/ u9 a/ z4 A% Q2 M
set [trade-record-one] of customer item (([who] of self) - 1)' [- T0 S! I* P% U: g( S; |4 d U J
[trade-record-all]of customer B, d1 t( ^' i4 K% p
6 F# {9 ~+ [, @6 |: V; C& ?
set [trade-record-one-len] of self length [trade-record-one] of self
5 y, B7 x* S$ |- n7 L( _
1 F4 Z% M9 \# L( R+ ~set trade-record-current( list (timer) (random money-upper-limit))% a2 U: T* g3 B, ^2 S
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ask self [do-trust]
, U+ C3 s+ S) z. K;;先求i对j的信任度% L$ i5 Z4 t, ~# H
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if ([trust-ok] of self)4 j H$ z$ \$ O8 {
;;根据i对j的信任度来决定是否与j进行交易[: y- h9 t0 U$ t
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 F% h. z1 O& K
9 s4 c. d6 Z$ T4 A[
3 y! v+ ?, Q) u* K N, }$ y% e( y d2 s3 Z1 d1 b
do-trade
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update-credibility-ijl
+ g2 c2 d; y' R! l
, R G$ `) H2 zupdate-credibility-list5 u0 j' g0 r4 l* R* `1 \( t
8 o1 c4 l: _7 W- s# U1 Q
! j$ Z$ N& W1 `, O1 Lupdate-global-reputation-list
( t: z% E1 T$ c! a9 j: i# ?$ C6 x6 v: V# S& L% i& z6 a. p. e- E
poll-class
; s3 w, H6 p. |& {( K- |9 ?/ @+ `( n
/ S$ D2 V" ^3 L7 sget-color
5 h5 c/ m: g. n0 r ]
& X; s2 _# |6 P3 m1 Q]]
8 }8 W, H7 ?( e& J6 M7 W/ @: ^7 _% \* ^' S4 K6 f& K3 H" d
;;如果所得的信任度满足条件,则进行交易8 E' O7 C& n I
4 Z5 {' J) l, L0 A* M0 T! p
[
1 q2 Y" r9 [8 r) i5 O6 O
O: j5 _6 Q" D' O( F1 Xrt random 360
- a" d, f2 u/ S9 F( G& ]7 G& ]6 V
% v' l1 I$ w. c) Rfd 1
% d2 {. b X* |' ^' [6 F2 _' e" m8 J$ z' h. S( Q/ F" a0 m0 b
]
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, f( k- {( D3 Pend6 A* f Y! m. \7 B2 i8 X0 p
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to do-trust ! `; X" ~; j* c5 ^1 C5 ]8 y. @
set trust-ok False
l' v2 k" A; ]* h2 G3 K6 {
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let max-trade-times 0
' U$ [" e& J( b2 L) A6 {1 I) Rforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]] \2 S5 a6 h0 G4 N
let max-trade-money 0% a8 m$ U! O% k' N E m6 h. T
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]1 S. }) w/ H6 B3 P2 Y6 E3 X/ ?0 r0 ~4 F
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
+ |/ a }: [: f$ B7 X: s5 r; d; h1 K8 k
! r8 y& p& ` H5 K7 _ b; B. M0 S
get-global-proportion
, V1 b8 z+ x& u6 u1 [4 jlet trust-value
" y! I. w$ S( i( |9 s; nlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)* K6 m! i, ?9 {" y8 `+ `
if(trust-value > trade-trust-value)
& t+ ?% `, _* [; f9 ]( ]9 ~7 j4 d0 z[set trust-ok true]4 I, ~5 n; P1 c2 L3 U1 S
end
- o# J8 _3 \1 B& i* J
; r! c* B; x k4 g# q, hto get-global-proportion$ V( ~$ k: t/ `, n
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* W1 h. p7 |9 X; ]9 ^" i* P2 O
[set global-proportion 0]
5 `4 v( j' U' n/ \. w[let i 01 B L" b' q. ?# l K5 \
let sum-money 0' a5 X7 Z, d Z" W! g2 ^4 m
while[ i < people]$ [" s- |: q6 Y5 h
[, |8 D4 E" a) d" G
if( length (item i) j! m f' f- c3 h- M
[trade-record-all] of customer) > 3 )2 W, h8 R2 \' R$ r1 @7 J* C$ S
[
8 g& o6 c. g5 r8 ]# Y6 Kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
4 j/ k+ n5 u" g% W+ u, W]
2 N7 o! b6 Q; l) ]; h6 M& o6 w3 Z]& S, I" O9 I; Y9 d6 @$ |) H; ]
let j 0
8 z L2 S" H. Z& |2 G" L/ s" elet note 0
! @+ y; m: H6 D3 Dwhile[ j < people]' Z) a9 S) ~2 ?/ Y3 F- V! w
[+ X+ `. J, f* S% A& G2 R
if( length (item i
/ Y8 i' L) E( U* F/ {- q[trade-record-all] of customer) > 3 )
: ^6 m) E/ t/ N5 L$ _[
% u, S! V) E/ s0 Yifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
2 _; R8 ?* g( q4 H I[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' ?8 j# H; d: Y* y6 o1 C[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
9 M7 q8 b/ o2 Z- F]* h+ P$ ]0 K! B- t5 f9 W+ i# ~
]3 {. J; b2 A3 m9 I
set global-proportion note
! A, s$ U' @7 O! F]! i8 ~ `' y2 ~0 b( a4 [6 X
end
4 w8 V( C3 U+ _) V, Q$ k5 }
& H I; O7 d+ ~# V3 F, v, Rto do-trade- |) ~) @$ b- S5 ~* B4 N
;;这个过程实际上是给双方作出评价的过程+ u5 E0 k2 U% r" e) q" g, |/ r
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) ?; o) G9 z7 [set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价4 M% F% M A) f, m
set trade-record-current lput(timer) trade-record-current
+ ~' _+ w% j( z! s7 O+ \# a c;;评价时间* T( C! b1 Z `" u" v
ask myself [/ b- i7 k; l* c1 M
update-local-reputation
9 o! p' t% S* |$ l% b# Hset trade-record-current lput([local-reputation] of myself) trade-record-current
/ j o2 Z% j$ |]
9 F- s3 d4 @! Q/ u) d1 eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' u- r% p6 P/ n
;;将此次交易的记录加入到trade-record-one中
% L) @$ S; _6 N3 s4 D* o4 R# D7 k( Iset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
" N( c: H2 [5 Llet note (item 2 trade-record-current )
+ _! `: |8 q6 y1 Y6 ]8 P |9 ?0 uset trade-record-current1 B+ F) c1 M1 l+ G) e# I
(replace-item 2 trade-record-current (item 3 trade-record-current)). n! e: }: V- ]) S$ r
set trade-record-current
. j4 }5 D7 X+ L1 A5 }8 A(replace-item 3 trade-record-current note)
+ {. f7 Y+ V8 A! {1 E" k) S7 Y; X! d0 o+ O; b% B# ~" P& u/ r
1 b6 Y. |) ~6 A" q3 t: o& nask customer [
9 [- S& d, p- A2 `. [- _; B& g5 supdate-local-reputation6 z% M, Y6 ^8 t2 N" Z7 x( a
set trade-record-current
; b% ~. w6 S2 S, l5 D# c0 h/ |$ m(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
7 w! g5 f* k% V0 Y4 Q# b9 Z9 i1 t]/ E" D0 z W3 o( G! F! P
* V) T) N, X3 x K$ t& `
. H* U0 N- U/ j! `2 @! }3 _set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer t) R$ C9 H. D( c! b6 a) ~
$ K1 ~# J2 a- c
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)) u) c }. c; T
;;将此次交易的记录加入到customer的trade-record-all中
2 h5 q3 c# ~( i) `& nend
8 n. Y- T. {* i% g' O# d
: [ l* i4 ?4 z. T7 nto update-local-reputation
+ s! g/ l2 _ G! o& Lset [trade-record-one-len] of myself length [trade-record-one] of myself2 r, \+ h' ~8 ?" p- n$ s- Y
! e3 a5 o7 Q2 U7 q/ y: f, Z; p4 L, G$ t* ~/ k; y5 q3 Z9 Y
;;if [trade-record-one-len] of myself > 3
. l ^: \4 C5 iupdate-neighbor-total
; q. i5 x9 ~' N; s3 _;;更新邻居节点的数目,在此进行; T: Z/ D& U8 y! [- C! R% G
let i 3
" Q4 s" L* r7 q( r9 Q0 [. H0 O5 zlet sum-time 0 T/ i6 v8 B' L0 v% @# H
while[i < [trade-record-one-len] of myself]' |7 w- e" a0 `1 D
[
" L( j' N+ ?; K' sset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
) w/ w8 m* ^; B- R8 }/ rset i' n r4 g( U; Z: ^% A* T3 C q3 u. B
( i + 1)
& ?$ z+ _2 \1 E]$ u. V( d$ S" o* a/ N
let j 3
U$ H$ v' i& b9 y- i% ylet sum-money 0
4 E1 s2 C: U+ \. l$ Q% kwhile[j < [trade-record-one-len] of myself]% S* x" P D* _# j
[
# c5 G% w. ^) g) r( u, @, Oset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)6 A& w1 C% a1 j8 V1 V5 _
set j
9 a4 X+ }. O8 G. T( j + 1)
6 K' e, \( \9 ]% H5 b]
5 I9 @. S7 E, E& Ulet k 30 p6 h( Y: z! Z4 o' _/ @
let power 0
; Z2 x* d, u5 H) w) q: c3 ]let local 0 a9 n* V2 ]0 t/ w" w) n' _* A
while [k <[trade-record-one-len] of myself]3 ^! _$ ]- r9 b1 m+ o9 Q; M
[0 k. A- k! ~+ v
set 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) : M: M8 l+ P! c$ R/ m6 p3 s9 A
set k (k + 1)
( m. r( x& f0 A& a& }4 j]
2 _# I9 N& f& V. r6 a% h' Fset [local-reputation] of myself (local)8 d* m; y8 A1 U. [8 [7 T
end2 K/ C! @; F& x4 |& h
; J* S7 [5 Z0 H9 o- H3 v( gto update-neighbor-total, ]# R; z/ {; [( C
( W0 e4 y: J9 |/ q9 R3 f ]6 |
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]8 y# g: z" ^. ^7 i) A/ Y. [
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# s# O* U5 [& H5 H( s) ^end
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/ W4 M4 }2 v9 i8 |0 J$ yto update-credibility-ijl
- C. w. l) Z$ O7 C) C0 s
# E9 ~* E7 a4 O;;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 T" [: |$ G8 Dlet l 0' Y/ A1 {- ~6 R' @
while[ l < people ]
. R) [/ l! \1 k O6 P;;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 v" [: v7 C1 W; a. O& Z" k" t
[1 n# ~1 w. B/ T/ A1 m
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
: [( p9 Z b8 |4 Vif (trade-record-one-j-l-len > 3)" A' z3 a; p5 b
[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. i" f- ?, blet i 3
" d/ W3 }) ^9 B6 n$ B3 C- h& I" tlet sum-time 0
0 S3 L( ^+ o6 E! F, C' t1 Twhile[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )4 k9 D$ m/ S9 V) s/ s$ X
set i! p$ y* f0 ]3 l% Z e
( i + 1). Y/ \, {1 c$ _7 j
]0 e4 g+ u v: u8 g. Y% n& u
let credibility-i-j-l 0( R1 p" R' m8 M3 [" L1 ?0 ^
;;i评价(j对jl的评价)2 z& {$ k6 f0 K- c" w2 x
let j 3( _& s5 G2 D& O+ G! @; Y' V; b- e2 w( ^
let k 4: j& ~4 P! d1 r% U; Z' j
while[j < trade-record-one-len]
+ [0 n0 Z7 u0 E; a[
* U4 E0 M; A" o) [; mwhile [((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$ s. B; K5 X# w/ u$ 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)
3 [% _) a# b ^6 W; i4 _set j
* T! y: \+ q6 Q% ?' Z5 E( j + 1)1 ?( L" U' I" _; ^
]
# r/ {7 o& w5 e4 Z& Z% k( K, z, Xset [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 ))
( ], F/ u% X% J1 |& R0 Y5 [, N
& I0 V. N: |# o G, x# w
( H) i9 u5 d. }7 ylet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
6 G! L$ x) L$ I;;及时更新i对l的评价质量的评价" s9 |7 q/ w) h! T
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
/ A. T1 F8 z- P% f( q$ q8 _set l (l + 1). n+ ~4 |) X5 ?7 ~( c
], H2 c) X( O0 ~# k! l9 O& U3 Y% m2 t
end
& f1 `6 v: K3 W& l$ a1 W3 Q8 Z
W! U/ p/ x9 U: x) oto update-credibility-list
3 l, v+ r H6 i' ^let i 0& Y! X* y Q# d4 O p9 R& T- U
while[i < people]2 K4 e' j: j+ O& z7 D* ^9 \
[
! s$ S3 Z. G" A7 {9 X4 w( e: ulet j 05 d3 p& [- S8 ^! J6 ?# U
let note 0/ I: ~5 k7 G9 A8 b! K; P& T0 S& T
let k 09 Y* ^. J) B& i" m2 J: h: l. B+ X
;;计作出过评价的邻居节点的数目
X! C& |& V7 W7 @$ a2 u: k# _while[j < people]! i2 M) Q7 c, Q3 y/ {, J
[
+ {- I- [; i) C# C& Y$ [! _4 iif (item j( [credibility] of turtle (i + 1)) != -1)
! k; Q0 @$ Z8 n5 K, y;;判断是否给本turtle的评价质量做出过评价的节点
- v' O( ~% X% L; x* ~) _[set note (note + item j ([credibility]of turtle (i + 1)))
. Q, W& r: {- Y8 E6 X: w;;*(exp (-(people - 2)))/(people - 2))]
/ O8 v4 `( i; g. H; J& i" fset k (k + 1)5 g4 l# y+ q7 ]2 U& n8 V* I
]3 k: }) ]5 R; h* t+ ^% V. ^
set j (j + 1)/ h* G! t* ?" R# q' ]- S0 K
]9 D, G& f5 l% c* e
set note (note *(exp (- (1 / k)))/ k)
* l) }6 J! n4 @$ p0 \set credibility-list (replace-item i credibility-list note)
( z- D6 f2 M! K( Rset i (i + 1)" V6 ?+ y) [3 W3 m7 h! |
]
# C# R4 ^* V; I* n! C) l1 cend
' Z( p: k' {& ~$ U8 P* `+ x1 t; t# x" h1 h# k' p, w7 h& U. a
to update-global-reputation-list& b# x! F7 t6 T1 Q( T% z; i
let j 0" l9 r O' r5 t5 y+ X6 v
while[j < people]
2 m9 I: ~, V4 C# o8 F[
, g3 q% w, a+ N, vlet new 0' @8 D4 [% E) [' P1 Z; H, B
;;暂存新的一个全局声誉
8 T* R' k7 y+ c6 P+ q3 u/ ]% Ilet i 0
1 `+ R6 F m6 M2 S% F$ j. Clet sum-money 0
" ?2 t0 G2 l* n0 F2 P- h( slet credibility-money 0
- q. [, F/ n, K$ j5 twhile [i < people]' i! y* T% X* W
[
2 p% M/ h5 ~/ L5 T- P9 y+ Uset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 |. N2 W! L" M& Y% n
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))5 |* `4 h2 p; A# A' ?& ~% o. u
set i (i + 1)
6 f$ w, H, d9 Q2 E A]6 D2 y. D; W3 k
let k 0
- j4 P* p1 Y. Wlet new1 0
& k) P' G" j$ Q2 A0 S; Nwhile [k < people]* Y! r$ N; x$ G+ S, _5 Q
[# @2 a% h' j8 C6 s4 b" }
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 V2 F+ K( `) E* e
set k (k + 1)
! l+ x: W4 |; v2 \* U]
3 O1 k/ @4 R- h5 C9 Bset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
5 V8 A. l; j1 f/ _: \4 a. [3 Gset global-reputation-list (replace-item j global-reputation-list new)
$ e1 i$ [- A# V6 C6 X) n; \1 z/ mset j (j + 1)
6 B: V* R. I/ \% Z2 s% ~" z5 M, |]/ \/ {8 m5 X9 X& x1 _$ W9 {2 c
end: E1 p3 \7 o0 C r, h( r8 F( F
( D1 D7 V6 A% t0 F5 U! g) d$ L) w6 m5 r4 l0 Y
7 c) k4 w) _7 s( ito get-color9 Z( t5 P: i" ~! O
6 }9 n; b/ D, H) Fset color blue
' Q/ F/ H0 k6 Mend5 A) C6 ^9 E O0 k6 x! P6 n' e( w
( R+ H; b( X! G( lto poll-class
+ Z; n, S/ o7 k) m3 Cend
4 J0 ^- Y, T! R/ c
0 w* W7 `# W" _6 `1 L1 T" C! p, Tto setup-plot14 V& u5 j8 J' R( K
& i9 y# c u. x, @- Z$ {1 S; Tset-current-plot "Trends-of-Local-reputation"
( L( _% B$ [) D3 Y9 m+ u* b0 L y, L, y
set-plot-x-range 0 xmax$ r/ l! y) f) m5 w2 b& D
* _8 J2 K2 O( _- r- ~% X" ]set-plot-y-range 0.0 ymax
; e. B; ]' U" z3 X+ uend
* ^( _9 O6 S9 I) h; ^9 K) G$ s" N% S; d$ p) R$ k1 }
to setup-plot2; j5 ?, I, N9 [3 l5 ^
: K6 f* Z& I0 D/ f- I* Wset-current-plot "Trends-of-global-reputation"5 U+ Q+ Y$ B. K3 e
3 S( U2 u# x- }) @. s' A. Xset-plot-x-range 0 xmax
* D! k% V" E$ }8 C8 u3 ?( v H6 s
set-plot-y-range 0.0 ymax, | N# v2 N/ ^/ w; L8 ^7 m
end
; T4 u) L, j( i9 Q* j% D6 Y# }
/ @ D& T6 X' d$ J1 ?to setup-plot3
6 l6 \9 u2 J1 w) B' \. d) f0 o1 h+ E: [/ T
set-current-plot "Trends-of-credibility"2 S7 G$ @: k) Y& `
% V [, Y# v9 l# |$ w/ U
set-plot-x-range 0 xmax
! G& n% V) \7 Q9 c8 R: f8 d8 j2 w' v
/ E% C$ O, @2 Hset-plot-y-range 0.0 ymax
" }5 C0 v/ L" C3 z6 F1 D' H* Cend
7 E& {" s4 M0 U7 y& @- P
5 C7 d$ T/ }% E) O4 a* x' r: h7 kto do-plots
5 u. f- ]3 a# y+ x+ `, Iset-current-plot "Trends-of-Local-reputation", i; h; ~9 I# y4 }( ^4 I' z
set-current-plot-pen "Honest service"2 @+ ~! Y# x" q* E9 D
end+ Y; ], Y3 L+ f, r5 E$ h, }$ E1 B) \
1 Y% p# S7 x( f' v" D" y& S4 _[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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