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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2 Z# |9 E# U5 U8 Q
globals[
, K) p7 D: C% Z5 kxmax
R$ X' z7 ~/ i8 l: s5 x% U2 jymax5 n7 Y- y" j3 Y- a6 v' q
global-reputation-list
- k( _* O5 ^/ k9 n2 x4 \
: q4 J8 r0 G4 L+ k) v% B;;每一个turtle的全局声誉都存在此LIST中3 [# q& L \6 |3 ~6 e" z
credibility-list
- V0 {4 E7 a2 D; s: L: g5 g- r;;每一个turtle的评价可信度8 n) D* J% b3 P7 d
honest-service
* e) |. D ~" M9 vunhonest-service
5 h/ S* \+ F) b: F# ^( h& A% z' eoscillation* _. |/ D8 Q; F( i
rand-dynamic
/ J( w. K/ w! S2 t3 R" }, ^* v]
; T( h) r6 s1 P4 J8 o1 ~
# o7 G" ?8 L) \9 bturtles-own[! K6 b2 Y) V W) \& f
trade-record-all
* |4 X! O6 u" w; \( [; u1 q. D8 J;;a list of lists,由trade-record-one组成0 e1 Q) s6 ^" Y2 {) k- a
trade-record-one
0 x. W7 J }! v2 m5 Y;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录. r8 w; C9 ]; }$ [
% K/ D) f, y) z3 B, v0 Z;;[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]]
& o# z& V: F3 J/ E1 vtrade-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]/ g' r" h% U, 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
; a/ A; ~% G- u8 }neighbor-total
# d% s! z( e' D( m- A;;记录该turtle的邻居节点的数目
- }; A) ~3 V+ N7 k9 ~trade-time. p! d' a4 ]" @4 F. w7 }! g( e
;;当前发生交易的turtle的交易时间5 i' U& n: ~8 |! [2 D1 ]
appraise-give! H% U: }9 P( i& C* ~: w
;;当前发生交易时给出的评价
, Y; y! o# S4 y2 l7 Oappraise-receive2 p: W# f% n7 c2 N; S# n
;;当前发生交易时收到的评价/ F- ] A4 b0 R2 U
appraise-time
6 }# M Q+ R, s3 v [/ W;;当前发生交易时的评价时间+ C" p1 g2 {' G7 S; X H( A
local-reputation-now;;此次交易后相对于对方turtle的局部声誉8 i2 h6 x/ D% t$ x0 I5 S
trade-times-total
2 r$ q$ g5 X: `;;与当前turtle的交易总次数2 \. ]) W0 m! _$ _5 t
trade-money-total
; @2 I! L3 ]# M: g;;与当前turtle的交易总金额) o7 H& D( H" O: u9 b: n: \5 ]; s
local-reputation
; @: v# M; V& Zglobal-reputation
% J0 N" @( X' e" Q; [9 d, Ucredibility
! v( m2 S& _7 ?9 n& g# ^;;评价可信度,每次交易后都需要更新5 V1 o" r+ F3 s" ] ?
credibility-all7 c1 [! l; i4 t/ ^3 x0 @! ^* V
;;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% c: {: d. [3 [4 |
0 Z8 m6 j8 x0 c' y& u0 o
;;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
7 B. v7 y) ~% Ycredibility-one/ k- k7 W% L b# d! {0 R
;;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 x8 p1 h8 x8 r7 _5 f: f
global-proportion
" n* Z0 n- v4 R; K2 ]0 E7 dcustomer
Q/ `& E5 U' {' y! D- ecustomer-no
1 G2 D0 Q- M) g8 I6 _9 k2 xtrust-ok; p- b5 ~' m5 M0 }" A1 M3 m
trade-record-one-len;;trade-record-one的长度
3 _: U) \: H$ x2 H1 t1 Q]/ U. r4 Z! m, M. X. I( S; v
( K2 n1 ^) d9 h' x;;setup procedure |" _; a/ v; Q) I$ G
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to setup
7 i% u8 O, t. s6 F& p, j5 o- j! [% s e8 l( e& E
ca
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initialize-settings
; n1 @7 S3 a7 H$ [2 ?3 W) w% _
9 A6 ^. |/ G( _* j! [0 z! Icrt people [setup-turtles]" w" N8 g! n3 {$ o1 |7 t8 @
6 g' S0 O, b' n7 J |* L
reset-timer
2 {" T4 m* ~. a2 ~0 `8 x- ?" X% l1 o5 f% d d2 o* s6 U# K5 ^) ? w% q7 b
poll-class' o2 b6 w, ?8 U* s7 H" L
' E' |, W8 K( l+ U/ y
setup-plots
; T9 g! Q7 O, `# B3 a
F' ?* j2 \# o4 C9 Ldo-plots3 u* b3 P7 Y- p& ]* e7 f! G& ^
end
3 o) H2 X m( g' k" v) B/ `' G
- f1 i4 Q8 c8 n3 g Wto initialize-settings/ {4 b1 B4 d7 a! a/ K0 u
1 @ r$ E3 p; [; }% Lset global-reputation-list []
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set credibility-list n-values people [0.5]
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set honest-service 0
7 L$ ?* @' Q+ W( ^- z4 B
' `1 G& t% w5 a+ k* Uset unhonest-service 07 Y2 g' e0 k- K3 }: b
' g0 b- W- O1 j$ z4 \) q7 _/ Pset oscillation 0* F* M- e9 E# ^4 V! i
0 X, n* l: U9 D% z: Y8 c) M
set rand-dynamic 0
, ~7 N* H7 ^ t& H1 K. aend( A. {0 g2 L1 s0 S6 @- L, I( J7 \
L5 o- p' \7 x+ k
to setup-turtles . l: U& a9 Q0 o) O
set shape "person"! u( }- Z" F. J* q, I) j: B! v, \
setxy random-xcor random-ycor. C6 h4 N6 h) K. L$ I- w/ _( I! D
set trade-record-one []
1 a3 p- m8 U; S: h9 D
. ^# _8 }: \8 }% vset trade-record-all n-values people [(list (? + 1) 0 0)] 5 ?$ d, [$ @3 i) V
8 d& j9 K' I+ `. I. j
set trade-record-current []
1 c7 q( f5 x: i0 v. pset credibility-receive []! I8 f4 ^2 R5 G/ S
set local-reputation 0.53 x0 j7 h0 X3 g5 t) P2 ]; X
set neighbor-total 0
. s4 Q, Q6 J3 J( ]3 U5 bset trade-times-total 0* J3 W V- ? O* R+ J
set trade-money-total 0
- s$ @7 o' w% t7 C9 {: Y) b5 m, [set customer nobody
* F" Y: f( K' V- }9 Vset credibility-all n-values people [creat-credibility]5 k: {8 q' X4 T! J
set credibility n-values people [-1]4 `" _: ?2 A6 S6 g
get-color
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end5 {9 q7 v& l$ Q' p6 l
$ N; Q( E) q! Y3 m+ f+ kto-report creat-credibility) V; j2 J9 u) q
report n-values people [0.5]. o. m, \1 G( a! b9 A
end
/ u: h- L2 p) W) M
( k, o/ \+ E# i$ W8 Rto setup-plots
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set xmax 30
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+ z. d2 W# p" kset ymax 1.02 I) k& U# X1 J
7 f* w0 {! S+ p& l# }
clear-all-plots
" X6 k/ u9 ?# b8 k6 {# \( \+ Z6 k' q' v5 w$ s# J) R$ B6 x
setup-plot11 w! _ C+ L9 w. ^
, ?4 g& h" v* s8 h1 j9 A ?9 dsetup-plot20 Y* w3 ^; F. p' W @7 g
; P4 H8 y2 ~" y! F5 @0 n$ Qsetup-plot3
5 W: q! ^6 T$ e8 w4 Qend+ z/ u3 u( J! t, \) y
4 i i7 F' }$ G$ {
;;run time procedures4 l! v9 }$ m0 l$ x# I& p
8 t2 d7 s! B) }$ mto go
7 ?% R# _1 Y8 @; B1 L2 e
" S/ w& r4 r3 |* i j. s" y! R; A6 p; ?ask turtles [do-business]
& |+ P5 M5 Q" S0 Gend
$ i- N! \- |4 n# }
+ t. c9 S% K/ A* e8 Pto do-business
( |5 Y! M2 ? |( S! A3 g- x/ q9 \1 P6 S! i# R
8 F, ]6 n; U7 ^6 p9 `9 m* L% Zrt random 360
9 c6 Y) S5 ]! z0 l. J( A [* r6 W7 o. K9 W u! ]; q9 q" Y7 j
fd 1
: U1 m6 g" o) Y
8 i% ^5 U5 M! z) nifelse(other turtles-here != nobody)[# }% o+ V ^ |0 U% K, u" c" z, f
5 K2 M4 D1 r1 t( p# ^
set customer one-of other turtles-here+ V& o/ g5 Q' R) B
# c' Q' ?) H* F( n$ R* d;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
4 Y$ J! U4 e% Q7 c( u$ F0 I4 S[trade-record-all]of self1 D* j$ W. [2 x3 } t
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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l4 g, ?* }! x6 A: i6 \$ Cset [trade-record-one] of customer item (([who] of self) - 1)
# N3 C$ P, u0 C; T[trade-record-all]of customer
# }- W, i' b2 e/ q, i# w
5 z6 |8 O, l: R- rset [trade-record-one-len] of self length [trade-record-one] of self( R! U/ r1 i3 c+ H% B& C
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set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
+ K' o0 a5 _8 @, b6 T k;;先求i对j的信任度6 u0 v8 ]+ \1 |+ G3 v# h
# Q8 a0 k5 q( w* m. J2 ]
if ([trust-ok] of self)4 u% n- r* I- [, x/ p ?7 B
;;根据i对j的信任度来决定是否与j进行交易[* b1 {* J! O/ ~" s
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself f, i4 p; j0 W5 `
$ g) d3 n! K9 C+ [/ m+ S[8 t- M( ^" ]" D" x
( a9 M I+ y$ R* \) `1 ]do-trade* V" T& @" @' l8 n$ n
( K# B" H z" O* V2 d" Z& @update-credibility-ijl
% ]; o$ J1 J# v
" L) r- e/ f3 Y2 i9 c0 X! G' k6 ?, @9 vupdate-credibility-list
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/ A0 s. u9 Y1 Y+ f" M% X
update-global-reputation-list
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poll-class
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get-color. d4 E4 o, A' H% r7 z0 H. p
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]]
- _/ v# h; @4 M$ g; w
/ @6 L8 m! E" }- I;;如果所得的信任度满足条件,则进行交易& W$ {* x7 l( _# w2 @) H+ U
; Y* [+ P, w" w4 x; p. q& y
[) F1 w% q1 @( f4 B* ~2 H
. {' `0 E" n+ r
rt random 360
8 z$ s' d% M0 E. @$ r6 L
% V. D3 c( o9 i. \- sfd 1 |1 g( g% R' Q9 a' Z
0 O/ H$ G( |, R+ S
]8 C% s3 ^2 l0 |% Q0 T
6 w; N& \5 j" t3 N
end/ k- {, M r( a/ `+ Y; |3 b4 v
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to do-trust
5 r' C6 ^ [2 Q, Q7 p4 O2 \set trust-ok False0 C2 u# a+ \0 ?& T1 p0 x
1 Y* S+ }7 i# y6 H- {5 E
9 E) \ G/ g# R3 \" b( jlet max-trade-times 05 ?, ~- r; A3 [, Q3 S* z4 `/ t
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]! v C/ v6 r0 ]/ v" K) e
let max-trade-money 0" ~ T- @( v7 L, C9 a' T! n7 ?
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 \+ m% }+ f$ C p: Q& ~- {
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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0 {$ L+ \( @! j0 `( T- [* O- F
get-global-proportion; D5 t- q8 q' a& j$ r ^
let trust-value
; q3 g4 D T0 B& J% h) wlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)$ v, {! i! Z$ g& W7 {5 k
if(trust-value > trade-trust-value). ]* T! a& {5 m- j: J1 p
[set trust-ok true]
8 S) w4 A- B$ C3 c+ W8 }/ Gend3 b; o1 O2 l. \& @* q% _
|3 \# @ {% A% s! ]$ P3 yto get-global-proportion" I$ Q6 L# m# Z
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 \0 q' w, X4 r( A% o( O[set global-proportion 0]
0 r+ k$ d0 B2 w6 X8 I: L[let i 0
- [$ S1 S' U9 I8 T: I1 l* xlet sum-money 0
0 p, U3 p9 ^& }* ]6 b# u3 S6 swhile[ i < people]" [1 @; J% f' Z/ o; ]
[
5 c8 N, l$ z8 A V3 oif( length (item i
1 s# [* K" P4 L! N5 e8 P[trade-record-all] of customer) > 3 )& }. T# F9 j7 g! o* c2 M# s
[- q- }8 H* F6 G9 F
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
3 m1 ^6 O: i$ H' r5 v5 T]) f/ S' b5 R& j- c9 p4 x
]
- b6 P2 L% E, v' i' W3 ]) \let j 0: i* v7 W4 ]7 Y! Y4 P& h+ x" A" }
let note 0
, |/ B; K9 s) E! ]" Q" Zwhile[ j < people]
w* ? @, c K* ?[
* E# `0 u( E0 k, k. Zif( length (item i
+ B/ F& q1 D, x' h7 d8 I4 c: ~[trade-record-all] of customer) > 3 )
v4 m0 I3 T- M9 A |; P: h[) h. g& T( h3 {# `) K; _. j
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1); d/ e* ?2 j0 @3 @
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
+ X- T/ L. A! d! v( ^[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
/ t, Z* ?+ I/ C]
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1 I r4 w* u- t, |$ ~/ `set global-proportion note7 q% k8 F' _% @( N6 }. y A5 g
]
* L" C# w6 r2 c; @* M# o x; Wend
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to do-trade- P1 G2 F" k0 _! c( ~9 y
;;这个过程实际上是给双方作出评价的过程
1 ]6 X0 i/ i( @' b4 bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价: y. e: c) x, B6 W$ b$ t. J
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价& f/ X; g9 ?" L2 O: t% \
set trade-record-current lput(timer) trade-record-current
) z, a# u: P3 _6 i;;评价时间3 t, q |4 D }- J4 o: P* w
ask myself [
% J: M# o% l; g* Fupdate-local-reputation# d0 O5 A2 ^% |, r* p3 Y
set trade-record-current lput([local-reputation] of myself) trade-record-current4 [* a" [) ]% o
]: E) G% H$ v! {4 ]4 i3 { K
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
2 b* g# \2 a; ], J;;将此次交易的记录加入到trade-record-one中4 R) x8 A6 p% A+ g6 ^1 K
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
) s2 V/ o! p% F) S( Y: Klet note (item 2 trade-record-current )
/ m; C$ Z; F: h" s) }set trade-record-current S# q( `" j9 w% w
(replace-item 2 trade-record-current (item 3 trade-record-current)) T3 V) E$ }, r: P, c, z5 v
set trade-record-current
* w- w3 P# }: s, {, w4 {2 I(replace-item 3 trade-record-current note)
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( ^" W5 O" s8 R5 l
' i: |8 @: R5 e5 r* d* P& D; ]ask customer [7 J: B4 L- H8 w O1 }/ Z
update-local-reputation l) P5 j- r P! v1 T6 W+ y
set trade-record-current4 _* ~- W F" ?/ Y) A5 ~# @9 {8 k
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 M* |* { k/ h! [; x0 A& |]" C+ V2 s8 _, p# l4 n5 c( l+ r
) O/ M2 }; Y, i8 N/ a8 w5 B1 m/ [" J) ^6 H
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer) f3 A: t" F6 X, b
- f5 I) @" P" ?: ]set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
6 g& [9 m' S$ c% L1 v;;将此次交易的记录加入到customer的trade-record-all中) R6 E" [2 c' X' @
end
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to update-local-reputation
7 p6 j6 s# q9 E% W! d1 Nset [trade-record-one-len] of myself length [trade-record-one] of myself
9 |# ?, `) u1 X- R8 {
K( `9 n: Y: ^8 h% [3 R8 v6 a) L, {3 V8 B6 q7 B
;;if [trade-record-one-len] of myself > 3
/ Q! ?1 P7 o" p% Zupdate-neighbor-total
1 c' k5 Q; L6 O6 E* z; `: K;;更新邻居节点的数目,在此进行
; n4 g. D9 [6 _3 \, D0 Flet i 37 {+ ?& I* p7 S
let sum-time 0+ o! s2 l- V+ k; ]
while[i < [trade-record-one-len] of myself]* |' b5 L% d* [9 ^1 v
[
: `' D( t: p) L, ^# a. `. ~set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
* K5 b: V2 }- P5 Q. o% r, qset i
8 x2 _$ `( ?' [9 H1 C, T( i + 1)
& M9 z, G( m" P q$ Y! U" X]
" q6 z/ S3 b! ?# `let j 3
# m! T9 N. L* I7 g! olet sum-money 0
( W/ V$ D" t( V0 Wwhile[j < [trade-record-one-len] of myself]
: k; ]1 B! F4 V, {. q/ d[& a5 V4 V/ O' \& b
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)
# F1 w; ]; ?+ V$ {set j
% w& ~: ]0 x/ |7 M" u( j + 1)9 t) X% k: n# @0 E! w
]% u) O4 d. B5 w; r- w& H- I1 p- q
let k 38 G/ w4 P# H' S" o
let power 0, e* X" T6 b0 V o& B/ l5 G' R5 C
let local 0
( ^: [0 }+ n! `3 o% ~4 Awhile [k <[trade-record-one-len] of myself]
( V% o& t! ], l" E1 W I[
0 f, |: A$ n1 p* n, E$ Hset 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) 3 l, z2 P$ t0 w" h0 V
set k (k + 1); f; P, K& V9 H2 n) W, \& n! t8 Q- v: U& ~
]
5 H: C7 w" w" }7 E9 Eset [local-reputation] of myself (local)5 o/ w! Z( L9 H" g
end' J, {, P- k2 x: Y3 K3 Q6 |
0 w% q( q8 S9 I& Y* sto update-neighbor-total
4 m; s5 q4 I% u. C- Q, [3 _" _6 o- Z, o8 |* q6 r, F/ h
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]6 S* d. U ]7 s7 F
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end
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to update-credibility-ijl u- U! u$ `& g6 y; ~
+ v/ k# s( [/ X+ ?;;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。
( V$ {: X+ [# ?" T; f2 ?) H' M8 llet l 0
5 D+ v6 O5 c. Y7 @/ Vwhile[ l < people ]
: D. p2 @; r( e' t, O( H;;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
# h/ e! @9 z5 d2 `6 U[$ z8 k( q- S) x- U/ s
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)- r v0 ^9 |) [4 X, a. t0 i I
if (trade-record-one-j-l-len > 3)! O$ d5 P# _& J3 h7 m" @
[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, ]. {6 |- `- B3 r$ a. Z
let i 31 Z( P ?: B$ q) e/ Y6 a4 L' d
let sum-time 0% N. i) M% P0 L$ w t
while[i < trade-record-one-len]6 X& `* A* M I$ y
[
, s2 B8 ?; X( p5 i5 Q% i8 |; eset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
g0 R- G5 t& @$ Zset i- X! m) @9 ~- S# I9 J
( i + 1)! y. j# Y) `. U! |2 _% T! r3 a
]
7 g, z+ M! C8 f, `6 V( ~ Klet credibility-i-j-l 0
6 S# {& a3 a \" A" R;;i评价(j对jl的评价)
9 R1 B/ v* {7 h$ M' W( b# alet j 3* _$ l+ p% Q4 |$ s8 C/ m
let k 4! _6 }* M/ A8 d; k' J
while[j < trade-record-one-len]; t( ^. z+ F R7 O' a
[
: \/ Q8 S7 w* |7 b) ?4 Fwhile [((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0 j" h9 {; f! S# y
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)
9 R' C: e$ U( O7 Nset j
7 I3 N! J U8 Q5 n( j + 1)6 L. j/ v' a6 P- A+ S# a
]2 F/ A2 ?6 _9 ?. s2 L8 f& y: b
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 )) G+ K' l: T( l- n% _% r/ z& K6 y% \
: W* d+ C$ s7 ~2 m$ V0 g
: X1 B8 Y1 R; K4 w, ]# T8 U. o2 \, zlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ W$ e; A d: s! f; a, z: ]4 o;;及时更新i对l的评价质量的评价+ x6 ~' m) P* P% b. T6 _0 k
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]; m# g4 J' ~9 F B9 U" g
set l (l + 1)9 r+ c& w: |- l, D" {$ N
]
6 B$ B2 u: Z8 T* a; d' C9 vend( \$ R) D/ |- Z# g1 Q. }
* F5 v% o" f8 _4 U0 k3 U' V/ E: b! o
to update-credibility-list3 f: n6 t) \. `( L6 Q m* s
let i 0$ \0 X" I# | B0 |
while[i < people]% A5 J* G0 P* |8 S& w+ M: t7 h
[' x! p3 i& z7 V1 Q: R7 E2 ~7 P
let j 0
) u" J a- L$ y0 n4 Glet note 08 J, V* q( L3 x( d/ D0 P
let k 0% g% N! F% M) O0 f' H; b* s- `' @
;;计作出过评价的邻居节点的数目
1 l0 n2 m; O. k% ?; F1 \while[j < people]+ q3 |$ B. v) J) p- E
[; R) ]; T) o3 `2 O% L
if (item j( [credibility] of turtle (i + 1)) != -1)
4 G+ ?/ |2 `4 p7 h! ]1 `1 A$ {+ a;;判断是否给本turtle的评价质量做出过评价的节点$ M; [ w( L$ M% r
[set note (note + item j ([credibility]of turtle (i + 1)))1 ~6 v$ X0 I: q' j) L# \; p: e. N) N
;;*(exp (-(people - 2)))/(people - 2))]
, U% R$ ]8 `6 Q3 fset k (k + 1)9 ~- q. P% d) F* y
]6 _+ L0 L/ ?3 t: _
set j (j + 1)
9 Q& y% m9 X, C; a1 v: w$ s, L]; V6 L% W t7 M. L0 J5 F% U6 O
set note (note *(exp (- (1 / k)))/ k); C" x0 z; Z' Q. u; N
set credibility-list (replace-item i credibility-list note). W9 y1 X7 j3 B3 C
set i (i + 1)$ }) K' a7 e P* R2 t# y
]1 m* f- _, U- p
end! Q6 f" C D# O0 e
9 p1 I0 y/ s( r" w& sto update-global-reputation-list
7 |8 |& o }3 ~ M9 nlet j 0
2 L; F3 k4 A+ c1 W" l5 Dwhile[j < people]1 L! p/ j9 j) V) S8 k$ L) [
[
5 F3 s Z) ?+ W: h0 q7 slet new 0: G* H$ H! P/ E' q
;;暂存新的一个全局声誉
" b1 d$ _- y' W+ t+ N! Elet i 0
- w7 t( G3 s1 `let sum-money 00 [( w1 F- j- c/ H
let credibility-money 0
" [5 p) E$ ^9 C/ `6 _while [i < people]
9 v; P. j5 [& u3 f8 D[. P1 h# v6 O4 G1 `/ X( G- h
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! d( X& b) K3 x$ i% t Q0 e+ \
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) I8 @+ ]1 M0 U. ?4 s, W; O3 [" Kset i (i + 1)/ }. u0 G3 _ Z1 r, S' A, V) \1 k
]4 G5 r+ _$ |3 O$ s' o
let k 0
% n# s+ U; x! e$ flet new1 01 O( l6 v" ? x% x, W/ Y: j
while [k < people]
/ m9 f! x" S6 k[2 c* p- D L2 N
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)( O5 t+ U' ^4 y
set k (k + 1)
" @8 w0 Y$ _' b0 G) H]
+ i+ K7 V; w) ~2 L) z# c" z: tset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
9 A9 a8 Q$ [2 |! S Bset global-reputation-list (replace-item j global-reputation-list new)8 ~6 x" d! F& V$ q8 C
set j (j + 1)# A5 o0 l! S4 o' l- T
]
& H! E- Q4 }5 U. I6 aend% O! x% z" @9 J7 }( P
# F/ d* X v8 V( m
1 ~! \$ [6 s4 o4 l" A, \6 m
, w$ K, E" x; [6 D( s. ^1 @
to get-color% `: S5 Q3 o! r6 z8 O. l0 U0 w2 n7 U K
/ x# k* u. c* a* a' ~# ?
set color blue) i+ z: Y( E+ J+ L$ `4 u
end& L" s4 D& x4 X" L
" T! G, A& o# J% o
to poll-class7 z' i7 e/ o; F8 @; r5 O% b. O- N
end
# H3 n. V6 d, K' z$ P |# ]# P+ S( Z1 e. s4 s) T
to setup-plot14 |$ ]# W; W- M
! v) h9 b; ?" m7 `; s8 H
set-current-plot "Trends-of-Local-reputation"( G$ L/ Y( y) W( ?
1 w% w. e, s; R: D& F! j8 B6 \
set-plot-x-range 0 xmax/ U' }( V. O: ]" k2 v& [
& q2 T: [2 M1 Y3 b/ `' Q4 j
set-plot-y-range 0.0 ymax
, V" X: p' \0 T% x. B+ e4 Q+ Cend0 Y. z, Z9 M5 y1 H
* w- o) }+ |& V3 |3 Xto setup-plot22 p5 c* Z8 ]4 N5 p. v
4 K- R# U, h5 G# d
set-current-plot "Trends-of-global-reputation"0 y1 A9 }. l: v' g) p
4 h7 }; r! {3 G# `7 q* y/ ~- J9 C
set-plot-x-range 0 xmax
. {: n, o5 e% V; V7 Y9 B, [9 @4 r, i8 Y. ` W% p
set-plot-y-range 0.0 ymax
, U! Z! u+ m. W0 s6 Y# S rend9 M. H2 V9 ^, z, B9 G7 @/ |" q
" {$ B- Z: j( U0 @2 m/ M1 Ato setup-plot36 O, w. [, `/ t4 q2 Z5 o
4 J# _( i: d3 R6 Sset-current-plot "Trends-of-credibility"
- ^4 \! R) s" O9 _8 T$ V) B" w
( a3 ^( ]3 o+ u6 @' F2 W1 hset-plot-x-range 0 xmax
: h( p6 S6 Q5 r+ x2 u. A( B
8 R( N: B0 ~ _3 @( jset-plot-y-range 0.0 ymax/ W7 O9 w. L$ Y. G7 |8 t3 m
end
( ?6 q* _- c) S }
3 B4 Z$ O& b1 t2 i) _; K4 h# g- nto do-plots% J& R: |+ t+ M$ [. f' v; V5 z
set-current-plot "Trends-of-Local-reputation"
2 k2 \! s( a6 Q0 W C# H4 Xset-current-plot-pen "Honest service": ]' K z2 O2 f6 @0 u+ x
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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