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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
3 _( d0 J' q7 I! b! X+ aglobals[: W: B, f: M% r$ X* X$ J
xmax* g7 J6 q2 t# E9 r) W
ymax# {9 ~$ R$ g1 z) s9 {! \8 k
global-reputation-list
R) e* @3 q! g0 C2 l$ [( ?4 ?; V' o x1 F, x: }
;;每一个turtle的全局声誉都存在此LIST中
8 n. Q) S, f' W. T$ Ucredibility-list o6 ]$ T+ \9 H; N# H3 G
;;每一个turtle的评价可信度7 s7 `" B7 W( a/ A2 p# r1 Y
honest-service
( K8 e8 D/ b" V/ }8 j4 r6 W$ junhonest-service
1 C! U6 C4 Y: @ h- x! i% hoscillation
4 R- O8 |) l0 v. O0 Mrand-dynamic
7 ]9 O, z" V- [ Z6 m9 F8 h]! i- l2 m. {' B2 F+ j
% V+ t2 G0 E9 H+ f* n
turtles-own[7 {3 X- _% `3 E; z! n
trade-record-all c3 L8 D8 h) ?6 U' a- P5 x! p7 ^
;;a list of lists,由trade-record-one组成" J+ Z% y/ _5 ]/ ^
trade-record-one# U8 \7 V9 q, T4 t; h8 F
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
- N1 |; e8 f/ y
5 Y2 x6 T+ ^" r6 j+ P6 `+ ~;;[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]]
$ Q3 S) R$ p0 G7 Wtrade-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] C6 i% _! b1 o) r- l
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
7 M. p4 t2 \3 [neighbor-total
/ W0 l) p2 s, O8 D- c" z;;记录该turtle的邻居节点的数目! W3 o$ ^5 D0 M3 f. ~1 e+ R
trade-time$ K8 r. ~. L1 o+ v% z
;;当前发生交易的turtle的交易时间$ f; L2 r7 ^$ P* {: _. Z
appraise-give
+ s( x% Q3 q6 K;;当前发生交易时给出的评价8 a: q! D; O5 N/ S
appraise-receive
+ G3 K$ J4 d3 R( V) z& K;;当前发生交易时收到的评价" f5 @+ m" C" o; B# Z! n7 ]
appraise-time
f: M& g& P, ?" i$ Y;;当前发生交易时的评价时间& K5 R2 K; \# ~ w
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
w- z# E! e5 Vtrade-times-total; u: v, E0 o2 H2 U
;;与当前turtle的交易总次数; r. U8 X* t) w
trade-money-total
% _6 U3 ?( q/ |;;与当前turtle的交易总金额+ b" H' D4 s0 \- @
local-reputation) Q/ {7 e: d' G' i+ y# f. h; q
global-reputation! S( w7 }% N0 d) P; @5 L1 @3 W& t
credibility
/ L2 V+ d4 Q: V/ M: f; C3 w;;评价可信度,每次交易后都需要更新
* ~" H8 K5 E) b* u) C& ?credibility-all2 X1 P7 }: P3 ]5 [# Z9 Y: @1 Q
;;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6 p; s# [, |2 M2 y
# [' W! B8 }2 l( K
;;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
G/ t$ A1 N6 Xcredibility-one/ O% L9 g4 J4 ^
;;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( K' r4 E/ j/ N2 A- a& ~$ }
global-proportion
, E2 [% i" l3 ncustomer# ?; Q* R; [* ^8 a+ Y' V# d" o
customer-no
4 S+ W5 B+ A O8 ^4 strust-ok
& ? o# [' }& u/ q! V( I v9 k2 jtrade-record-one-len;;trade-record-one的长度
4 q# X3 J* o' B]
! K- i0 h3 w! x8 j S) x4 Q( q" s; I2 _- E; d4 D' a
;;setup procedure6 S2 t G3 h7 b5 Z" T: }
8 Q" A8 {- a- r f, B, k# Q# s+ Nto setup- O% n3 v: `1 k+ H2 a( G6 O
9 ~9 F" R+ w& W, l( z
ca6 K5 f; o# O* F* [
9 K4 H- |% g" L" minitialize-settings$ w; o7 \2 ~6 a \
! G! q! C. o- gcrt people [setup-turtles] e& f( n' Y) p9 c) O
0 u* d1 @( U# M# Y) q& \# wreset-timer6 M) D' j( y3 t$ Z
! q5 u R8 E; P' R- V8 x7 S/ A
poll-class
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! w I1 Z' ^7 o( i8 Osetup-plots
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do-plots
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to initialize-settings
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0 o$ H+ ^( Q, R6 ?2 i3 r! Aset global-reputation-list []. n7 {: P6 ]. ~; D2 Z+ f& `
0 }0 {! s( N5 _2 E. ^" Oset credibility-list n-values people [0.5]8 Z; p# s1 w9 I3 h0 q/ @& M- r3 t( P' l
( T! G) W2 d9 V* lset honest-service 0
) p2 l- @, J q) u0 O
3 `4 `1 V9 ~: o2 Dset unhonest-service 0. L1 X' A. b' R. H' q; y& P
( P2 q' I& `4 s# a; K/ E0 O" Q; Eset oscillation 0$ ]9 E7 j2 k9 S" Z2 ^, g' q
5 g2 `; j4 |. qset rand-dynamic 01 Y. P! l+ L. k; U0 K$ v# C
end
" _, A: w1 J f; M% K) X' b# e& E k G
to setup-turtles ; L& l* Z. a& B# ^( c
set shape "person"$ E% r* c& V3 ^4 A& t& L/ x) H
setxy random-xcor random-ycor6 S( P' Y8 ]9 Z% T. O$ R2 j
set trade-record-one []$ m# Y' Y& k2 r6 G I' q) X5 o
& i" Y$ D# w+ U% W4 c' [; C1 c! b8 N
set trade-record-all n-values people [(list (? + 1) 0 0)] * J6 d5 q% \# x6 R8 B( k
. Q0 B$ D, u6 T7 O3 k( s4 N- y
set trade-record-current []# N' ?5 m/ ~5 Z- T; Q8 ?
set credibility-receive []
$ D2 H U: I2 Q& U+ m, d% Y4 nset local-reputation 0.5
8 J* W3 c) n3 G" ?* h8 \set neighbor-total 0
8 [# B+ W( C" {- Y; ~4 A. `set trade-times-total 0+ `* P ` e: C" Z" t8 u
set trade-money-total 0
* t3 H, s6 A+ Jset customer nobody; V5 i* M% z( M
set credibility-all n-values people [creat-credibility]# h0 Z1 V: c4 a1 |0 U3 g1 L: h
set credibility n-values people [-1]
6 f0 K0 F7 b) ^1 sget-color
7 c5 v( t* j& h& g# |' \
9 c) I7 p6 @" V1 u# Pend
; {3 h. S' \/ u( R( c) v
5 w W* e0 y( n. ?+ Gto-report creat-credibility% ]8 B& ]) D4 ]
report n-values people [0.5]
( [/ \7 d, W& ^6 a/ Y/ c d# rend
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to setup-plots
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set xmax 30/ Y$ k" \* F. k/ z
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set ymax 1.0+ R4 j/ g. p0 X/ y, N% @# F" `
5 \3 I+ ] B4 D: mclear-all-plots
/ [7 }6 l7 {( d0 W$ Q* G: g7 k& g+ Y1 L$ U
setup-plot1& ?! H) ?) m+ M8 a/ E( Q- T; @9 B8 D3 v
^+ a" t# E+ ^ F0 B
setup-plot2
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setup-plot3 s8 i3 @% ?! s7 }1 a( }% E
end
' o9 c0 o% I5 U- H4 Y# W/ v6 `# ]# W$ F
;;run time procedures# x; P3 K) d/ g/ i
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to go% l. y K) k3 L' r0 P
& L( w0 r; |& Z3 s+ b) \5 fask turtles [do-business]
( W# l- k) \% D! Hend
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$ o% V1 I6 s3 Nto do-business
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0 T# l8 g1 o& p# h, x/ @9 i
" O: m1 [" ?1 L% _ ~* grt random 360
1 X- I5 U) B% w6 V# r4 L/ S$ W1 w
fd 1
2 z7 W# ^6 I; B% B& |( p3 s0 [$ l& ]& Y2 y* D$ A4 i8 C- \/ t
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself
\0 D# M% i$ F9 [( Q& i D( u i% P8 G& k2 G& O6 C9 I* m" E( f
set [trade-record-one] of self item (([who] of customer) - 1)
4 Z1 S% n# K X" C[trade-record-all]of self0 y+ @' m, N# j
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self: L% A( }8 c7 h( A9 |- @
" S% W6 `9 s% _0 b# d- Cset [trade-record-one] of customer item (([who] of self) - 1)
# O7 Y% g4 ~7 e0 Q' _/ r[trade-record-all]of customer; p3 _ m, u& p2 R% O3 s% q
0 n& K1 B* C7 ?/ d4 ^2 K8 Mset [trade-record-one-len] of self length [trade-record-one] of self
7 P& Q5 A& E1 @, K; [" {1 I" F; a) r9 I' n$ F& S; D
set trade-record-current( list (timer) (random money-upper-limit))
/ H$ _, Z8 W0 f* X3 w ]& L8 J/ A2 e9 @4 L7 v
ask self [do-trust]
3 A- ? e7 S, ^$ A8 Z: X; a1 V;;先求i对j的信任度
! q7 A. }1 H6 d8 D2 l$ o o1 I6 }. X g6 Z Y
if ([trust-ok] of self)
j; C) c2 c# y' a" j+ W;;根据i对j的信任度来决定是否与j进行交易[
! g: @" E3 u* O( y& s1 z* ?ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself) c( ?& ?" r9 Y2 x5 g
+ e( T6 D3 R$ |( \ P[: b# y G) A: z1 f
0 E" {* D, d( P8 o& I3 e
do-trade
# J% Q0 Q9 m0 W+ o+ e4 y! j5 D+ h$ W! F) x- A3 |2 f0 [# Q
update-credibility-ijl! V& d" C+ T. d- E, W
: l# T. s" k3 v2 o Cupdate-credibility-list# C ]2 Z7 I, O6 z$ J% z
$ K( S1 D, I0 C
( ?) G2 f$ }9 O, U5 X* `* Fupdate-global-reputation-list! I. A+ l$ `% V8 U* @$ e
" @9 v3 V* p5 w s' r' ~
poll-class
0 |( C! {7 S4 R/ I7 O' o, {8 H! `+ \/ o: v# X! p& L# j4 p
get-color1 J; }' B7 |1 @
4 z5 f# H z/ ~# l
]]
7 q4 Z# Y0 I" ^1 u
6 i: Q+ I$ [7 x: i: z3 y;;如果所得的信任度满足条件,则进行交易# I. j3 Q) `" \- ?6 g
0 r5 s% Z- O4 _# G" ]$ v[6 ~0 m' d% w1 Y. s8 Q* D
! A' M/ ?1 I% Y5 {) v6 |6 S
rt random 3601 I2 n9 ~% b2 K6 X* g+ y
% }5 s6 l$ }6 A
fd 1
( C, W4 w! @* E- \
+ E1 y5 t) x& Q% \]
- j% `* U( q# z* ?" }9 J/ |
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to do-trust
5 W5 u6 T1 C7 D* h$ \set trust-ok False
4 U4 Y u, |) u( i* @! ?% g, n1 E" O% j
& \5 I3 W5 t2 M$ k. a# k& F
let max-trade-times 0
4 h& B p* q" _3 d. j8 ^foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
2 `. ^$ |% C- e+ o# t: Ulet max-trade-money 0
5 E3 |. Y1 ^) e; @3 ` rforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]* L$ S' d; L, U4 q" o) O8 C8 s! 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))
! |- }; e) Q5 x. z7 u' D9 z+ U! \$ f9 w0 n3 {
4 o% Q- N b: N6 z$ Sget-global-proportion
6 K! V, n& V2 S1 z9 f7 c+ C) w- tlet trust-value
! H3 V( ~% E4 B3 O" b; u3 ilocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)7 l4 v+ o2 C/ I+ R) W
if(trust-value > trade-trust-value)
) K; ~( ?* j6 ^ o5 x7 q[set trust-ok true]
7 @' k) p+ Z$ u+ Kend6 _9 i1 s6 |* s# e: n
' L# {: C: O( S4 Y
to get-global-proportion
1 G" [7 ?$ h2 z, s& ]; \0 J" }ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)3 Z2 f a6 _1 n. u( m
[set global-proportion 0]
( X7 p* |2 ]% I[let i 02 U3 e5 g$ ~/ G
let sum-money 08 g9 d/ x2 p% G- m
while[ i < people]
$ \" P# B6 E+ V# F; c5 u- p( f[. I# }! w( z+ X$ n, \5 O) h7 @/ f
if( length (item i
3 w$ H- U1 {/ ]& m5 v[trade-record-all] of customer) > 3 )
. {1 ~- b& ~" w. X H8 h8 l! s5 e, Y[8 Q. ~6 s( S; [+ H7 Q
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))4 B9 G7 y% N P2 V8 v( e% j# P- n
]" @* H& `5 j0 y i. E& N* t
]( H3 T8 j% J" \4 M4 q3 R8 a4 v5 l
let j 07 x; r9 _6 Z3 E5 t# ?% J
let note 0
5 N% @8 X- x" o6 ~2 q7 ]$ k* ^ xwhile[ j < people]$ b$ m, x/ J# v1 w8 T- a
[
2 P0 u: T* T! E) `4 f; B7 R7 G# eif( length (item i6 H% C: w5 C \. ^
[trade-record-all] of customer) > 3 )
, F5 e' ]: w5 M[5 {+ o ]( |2 C2 d3 u! ^
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
T9 K/ m' m8 ^4 |8 c- @[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 G* J& }7 R; d[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]/ s6 T& F/ W2 f. Y; t' I
]
, I' L' H2 ?" _2 `% k |, Y]
- q: D4 G1 p3 G' Vset global-proportion note
6 N. k' N. b% d9 C]5 w* I9 K/ ?. {: [6 \
end
, t9 O3 f$ u' Y5 j& ^% ?. {7 ^% S1 m" `' a& b
to do-trade
/ O5 ^( N' W+ d# a9 c7 p;;这个过程实际上是给双方作出评价的过程 m. i( j. S: i$ C; t. Q& l! A
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
% [0 S+ ?' @$ v3 \( Y6 W. Wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价8 G6 c. ] r: S+ U1 o
set trade-record-current lput(timer) trade-record-current3 ~' q) W3 v/ ?! l$ [ K
;;评价时间2 I" B1 G; q# }/ E
ask myself [; l9 x) `0 \8 c
update-local-reputation
# l1 c# \, v1 r$ O/ \set trade-record-current lput([local-reputation] of myself) trade-record-current- e) w- c& W) P
]/ @2 q: C6 T" K7 x
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
* c7 m" {% U% }. a* u;;将此次交易的记录加入到trade-record-one中7 z- o9 D: ?( G4 k# Y# H2 x* i
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)- W0 E- A+ i! _
let note (item 2 trade-record-current )# P* Y# n' y7 i* e. g
set trade-record-current
$ w. R; T0 _' _9 a8 d1 [1 S7 m(replace-item 2 trade-record-current (item 3 trade-record-current))
, Z" O+ U+ N% d0 A: cset trade-record-current+ [) [& h1 S/ {- J3 Y( e
(replace-item 3 trade-record-current note): p6 D3 P. B6 D* S- C" p
k% l: c- q1 T. v9 J0 z C
- B8 B7 S e% R) G9 P% R/ U9 Lask customer [
; T, d) q6 T* l% x P4 y) Kupdate-local-reputation
2 U) u4 a6 P' o! w) L2 t' Aset trade-record-current; D7 M: ~" k5 h, K7 ~: {) x2 d1 {
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
5 U5 }8 K5 ]8 W8 u d# s]( v; D1 r4 @/ U
: U$ E/ R6 b/ S( S6 E
5 B9 @) k# ?; l$ w- Eset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- w, C/ ?$ l' p# w0 C3 R
- C6 G& y5 S/ _+ s8 ]; d8 J* v
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
2 K7 x' L. Y$ \3 W0 k;;将此次交易的记录加入到customer的trade-record-all中. j; c8 ~$ ^! X
end
0 l! Y0 k8 Y8 j6 ~) Z7 ?- ?& f
1 h, p( i) j6 \* q! A2 I% m- Y7 lto update-local-reputation8 K+ z+ F' ?& j" `' V
set [trade-record-one-len] of myself length [trade-record-one] of myself
F( T# }2 @( S9 Y X4 j
6 _3 A2 I' ?/ O0 h# t
9 U6 |* O& L/ Y; s;;if [trade-record-one-len] of myself > 3
9 k- L0 P: v& [, _/ bupdate-neighbor-total% k% m! C% U% {% H
;;更新邻居节点的数目,在此进行
7 w [5 \. h! K, r% a% Q( `2 L, clet i 3
$ U- Y! v9 G# G& }2 E9 C: L! plet sum-time 0
- ]/ _* Z9 s- g+ B Z8 Rwhile[i < [trade-record-one-len] of myself]4 D1 R# N' t4 ~; L8 V
[$ ~. n- X. f! r. \
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )% N% b( H5 B0 u; N
set i, ?! G6 {2 t* q' d# g- l& N
( i + 1)* V/ \6 i* x, e2 B; R
]
- R( S, p1 c3 @( qlet j 3
$ _+ @. r/ `) u: _! l# elet sum-money 07 A" Y \% V/ E4 } r" d) C
while[j < [trade-record-one-len] of myself]& u8 `6 c/ B; s8 L% f# J9 J
[) z$ D" \9 O0 A, u, m. w
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)# g9 D: Y; l2 Q: a B* F: i
set j7 E9 G7 m" L# y7 `2 C' `* F+ J
( j + 1)
: ^6 B9 F0 \ a2 u# a _6 P0 ]]
: j8 }; `, D8 N! ~- G! Hlet k 3
# E9 B X2 g# ~. \. H/ w% glet power 0- Q4 g$ ~2 o- s* a1 p$ u6 Z
let local 0
; ? b9 e8 j' D7 P( kwhile [k <[trade-record-one-len] of myself]& G: G% U1 B9 y9 x0 {, b
[
( s2 X/ X: _$ t8 ?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)
0 V6 O6 c0 g* c4 Wset k (k + 1)
5 V) w5 x5 J! y2 _" ?0 N- s' W]
. ~. d: l! Q. y. Aset [local-reputation] of myself (local)3 N0 s6 K' D$ c/ p2 J+ C: I
end
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to update-neighbor-total
- ?9 k4 b" f7 D% X( @6 V
: ?) C% w" q/ l( v% gif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
) o2 U, s" X# e6 P2 a
/ d5 e* |5 ^% I4 w; N g
! L* e& }) D8 H5 j* g D5 [7 Pend
" S$ \8 [* q4 v* ^8 b( C5 w" K" `# g _, U% ` M3 l
to update-credibility-ijl
% f4 ^" I" J) C) I S
3 s# j' D, {% R4 B8 n;;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。
" B3 t$ u8 t# Q6 I& b9 f! vlet l 0" z+ H, Z5 }4 D% x& o2 W
while[ l < people ]
- |& z! L8 M3 V% C u;;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
; E$ S6 U/ `3 z, m( q/ z[
5 B8 A: Q' ^. alet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
- t4 ~6 }1 I8 t5 k; fif (trade-record-one-j-l-len > 3)
+ u9 R, ~) A0 K3 }[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
) _: k- N6 d: d! H* [" L! slet i 3
; C: s( p' L6 ]0 ^let sum-time 0! H- E8 `5 O$ T
while[i < trade-record-one-len]
8 w( S3 Y1 E+ Z$ E9 Q[
( i( d y7 }* I$ ^$ X V/ xset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )) S0 e8 N8 n* X8 b! G; o) V
set i
8 ^& j& P' E9 }! s7 `( i + 1)
3 P) R3 Z2 u9 v) s0 M4 y]. ]4 |9 }1 G* p& s8 t
let credibility-i-j-l 0
# ]% p+ W, I9 T;;i评价(j对jl的评价)
# c `" M. Q7 @- c" tlet j 3
. ]5 L' Z1 t, U2 q9 p% r& a0 elet k 4; z) y$ b4 K$ @. Z. i
while[j < trade-record-one-len]
- Z/ u( t ~; j- a4 s3 O( |[" W# Y1 a9 f4 t" ?' y& I# B
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
: z$ X, @- A- {$ \3 ~ v4 P/ O; \ Hset 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)0 p8 w" Z& ~+ _0 i% x" i
set j
$ O, p9 Y" U1 w9 G& U( j + 1)
7 k) @; ~) ]5 N) ?2 \5 D" X, u. s]1 p7 ]1 ?, G( {( ]/ v
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 ))
8 u4 u: A9 W1 r% v
- r' ?, |; ?) n% G! I d9 k
' Q& \, L: {3 @8 L3 W: a; C; ~let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
0 K: L' M8 x+ |, g: Y: t! |;;及时更新i对l的评价质量的评价
5 N: p1 D3 A7 P$ u& Rset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
! J9 h8 w6 p( J( Q' m4 g) tset l (l + 1)
8 e9 j7 U+ z# b% z3 K3 S2 S) ]]3 O7 r/ }; U" H6 R4 H
end
0 P9 K" S6 L- _2 V6 @4 d% p- z0 ~% t/ W
to update-credibility-list( C% X5 _$ u9 L) Y. d0 Q' D9 u
let i 0
+ \! }+ j" H6 E# J1 Fwhile[i < people]
; {; ?; J% o; ~/ Z1 ]7 [[
* e9 O8 a0 C v; Xlet j 0
9 j" x4 r: Y0 }let note 0
; k$ Q, | Q& ?8 g* O) olet k 0
* T% _- N; f! k, C% o7 G' a2 U" m;;计作出过评价的邻居节点的数目$ v M8 B& g8 l0 a6 R
while[j < people], s n4 E# S7 L
[7 l1 V# \ G2 `( f
if (item j( [credibility] of turtle (i + 1)) != -1)% e$ I) K" F4 C! h% @& ~, X
;;判断是否给本turtle的评价质量做出过评价的节点& _) ^; ?, @, ~8 j& [' k
[set note (note + item j ([credibility]of turtle (i + 1)))
( ~ \5 f! c0 Q: c;;*(exp (-(people - 2)))/(people - 2))]
; J7 A: T9 e1 m7 q) Yset k (k + 1)2 ?" @! [- T" y: f$ h
]
. Q. v+ _" |% N( Z1 E* s0 ^- i3 Qset j (j + 1)
4 y$ j c/ O: z# y9 x% _2 D- I]- o6 M8 B6 @& ^* r
set note (note *(exp (- (1 / k)))/ k)& z, J/ k- o; `5 j! i
set credibility-list (replace-item i credibility-list note)
- V% K L& s. t! X1 ~set i (i + 1)
% q; n! t- u( b6 j9 h1 h( Q]3 }/ f4 p1 ^- H- H K3 H
end5 @! M( M+ \9 G- v: h4 y5 f
4 T# p( k9 n7 X- N* J3 L, Qto update-global-reputation-list) t e! U& A! R9 a5 ^/ g, P
let j 0
& X2 a+ y+ K6 Y; N2 ?7 owhile[j < people]& I* i5 h' o2 h" i) ^
[
4 f2 S, V0 T( \6 R& [$ K% N1 C. qlet new 01 ]% ^# {( I' A; f
;;暂存新的一个全局声誉
. L* v ^! a) j' Plet i 0' O' T1 @) `' m- I1 i; M( Z
let sum-money 0; @; o# {) v+ ?( e9 i6 `
let credibility-money 0
; |6 g4 d3 e$ N4 f1 |while [i < people]
% z9 n1 a9 j# d, ]# k[& U" x* C4 w" g
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
9 d6 }+ B& d5 D* V8 Bset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))8 [3 a: O% {2 E) y) j, I
set i (i + 1)5 @8 r+ k, {- h8 X
]& v9 `, U1 C. H1 Q
let k 0
2 f& k" s, `6 e, M( y4 Slet new1 0- b0 m7 Y' x: Y+ E# l0 d0 R
while [k < people]
- `1 U5 X8 b+ c/ P- f9 T& N[
% \3 D* ^" `# B# nset 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 f5 n7 T7 o5 ?5 _* p7 @
set k (k + 1)
" f5 V8 E$ S. v+ O! Q]
$ R) b3 E" P* r' M* z# xset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! d4 i7 j+ w0 J, W2 ~) ~" t0 [
set global-reputation-list (replace-item j global-reputation-list new)
3 p3 ]) F; q; C4 hset j (j + 1)
6 e) S9 u6 u) P4 w; h' ?7 [! R6 E& x]7 ?: o ] H8 q* q6 ]( k
end
- M6 [0 B& L# E7 W/ P5 `
, Z' F# \. t& k! R0 {! b$ j/ U. Q% O2 [8 B
1 i- l5 j1 ]* M
to get-color
7 y+ k) s, U4 Z0 x* ~6 r+ {, ]1 Q: G, |! B) P
set color blue- {5 x, I8 A }
end/ [" g9 j1 l. k& B6 b
/ m! ?# c& {, i4 d$ b9 p8 P' b
to poll-class5 e; Z& k7 @' |: e' ^
end
: D$ I; A z# [4 e, N6 P" l
\7 T F; Z% L7 O5 R- jto setup-plot1
3 g: Z4 h: h0 c& T# c' R* n; Z: p9 l; H, m7 S: c2 `
set-current-plot "Trends-of-Local-reputation"" _9 {" v q8 `- {5 b
% r6 g( M+ i \& eset-plot-x-range 0 xmax
* D3 }/ s- Z3 K5 D
0 r; k8 O% L, F; Fset-plot-y-range 0.0 ymax
! E$ }) [0 F, \) Zend
% t: [' n, M) {
+ r; s: y+ i* W) d: Zto setup-plot2
+ c6 U3 j* P' a0 g/ V! X+ R8 E8 q6 k+ ^$ t+ F: @
set-current-plot "Trends-of-global-reputation"
1 }9 r7 S; K2 {( v$ N2 s0 {0 K# P+ ?- Z
set-plot-x-range 0 xmax: K$ d9 t% _( [% g) S* A4 Q) L
; ]1 @2 _ j; p$ Y; o5 lset-plot-y-range 0.0 ymax
# J3 X& @3 W' p* V6 Pend$ X% }& e1 I& t6 r' s" H) [# y0 S
1 a) o! |) |( h) r* ^2 v- ?( bto setup-plot34 ^' E; i y% c- l; H
5 a' M9 M( C8 K. V
set-current-plot "Trends-of-credibility"! @- R4 P% l7 x5 ^$ r3 Q
- A. h4 [0 K: Pset-plot-x-range 0 xmax
: @) | Y: w8 {! e# ^% t
1 D4 g2 t' G7 U1 _# j) [6 u5 Y( l8 qset-plot-y-range 0.0 ymax
% F4 K* W/ p0 p' X4 }end8 G$ r5 ]8 T, J9 P1 T9 ^
7 e' U- D0 v& U( L
to do-plots8 j7 q* [) h5 o0 S% e( I6 J/ B1 E
set-current-plot "Trends-of-Local-reputation"2 |$ B# l4 W; b# l9 D+ l' u
set-current-plot-pen "Honest service"% z; [ [. w6 c! J# [ V
end
( C$ a0 }' {4 N# o3 |* C' L* h) K& ~2 n+ t5 s0 x2 V u0 r
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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