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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( g0 a. \4 D4 N3 o* u( }/ M; ?
globals[
- @0 C. W" S9 G$ e, G2 |/ s7 axmax
4 g- D. L4 f2 K/ w4 `% C7 C' hymax: w0 a* A) ~7 ^
global-reputation-list
! @ C. \- N# s! h" ]/ f5 Z' y/ M1 i9 Y2 t' b" x9 T
;;每一个turtle的全局声誉都存在此LIST中% O1 g! ^! G- j2 x/ C
credibility-list1 w: @/ W: q5 Z* S U2 M' l
;;每一个turtle的评价可信度$ i0 u, J1 O0 F" I& x! W' ]* F! ^. x4 K
honest-service3 s+ r. g5 M# L4 w
unhonest-service
( e! h8 ~7 R$ g/ Woscillation+ H! A% I& s: d
rand-dynamic
8 x/ K5 f5 Q5 U+ a]
1 ?/ C }; e! L6 D8 ~8 ?
1 }- V, c2 @% N4 v) A6 T Jturtles-own[
6 E: p# J ?! y) N! Gtrade-record-all" i; D* C( F+ E( S$ w4 g
;;a list of lists,由trade-record-one组成$ W/ z5 U! m% L& D
trade-record-one
; `+ ^) o$ w0 m# S$ k0 m- M;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
Z+ {" m" K' \+ N5 i2 w! [& [- K. A8 V2 U& I r! y
;;[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+ ?/ S6 V# O% f, @0 b4 e0 z
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]; j* C% x% g1 Q9 V7 m4 f0 R
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$ [9 N1 U0 `4 R2 n6 l
neighbor-total
% r0 ]( n9 A6 v M;;记录该turtle的邻居节点的数目' W4 b: U2 `% T- T5 S6 t
trade-time
7 t5 L7 L1 d$ O. l9 O: M;;当前发生交易的turtle的交易时间
" f* q2 V, ?6 I' a7 f. Lappraise-give4 g) R. ^; I! F! ?: k7 e* D
;;当前发生交易时给出的评价
% S1 h2 S$ Y6 R% }appraise-receive
6 a# C7 a5 z5 ~% m3 q6 ?. v;;当前发生交易时收到的评价
7 B2 N; L7 \0 ^; Uappraise-time/ e9 x/ t; H2 ?1 J0 `9 b
;;当前发生交易时的评价时间
7 G/ ^5 ?. N' J2 ^* r1 ?local-reputation-now;;此次交易后相对于对方turtle的局部声誉
* O# G2 Q- v9 ~ Z% h+ Ktrade-times-total) }& J, Y; G1 i; B
;;与当前turtle的交易总次数( T- C0 n. p/ d8 p
trade-money-total
% U: U4 y9 C/ O8 P0 ^;;与当前turtle的交易总金额
0 K2 v2 G, ?/ F6 ~1 e/ clocal-reputation
& }; p: N2 V) t2 {/ x! @, g8 Iglobal-reputation
V2 u: I0 T) i0 q' P8 ]: z* @- jcredibility
) R- e/ w+ F! Z6 F& a; [1 R* u;;评价可信度,每次交易后都需要更新% z1 E: e: O1 X& p
credibility-all0 D- f/ N+ M |, 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/ Y0 O! a& `, W- i
U) ?" r; E/ R8 O: y+ N g8 E, 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0.5% g0 M$ M4 T% N% E& I* P) P' {+ O1 T9 `
credibility-one
& e* T3 R2 }- j# {;;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
- i4 m& k: Q! F3 R; M. [global-proportion
- X9 j' i3 \0 o" _9 N% T! j+ }customer8 t! u- Q* U9 i7 F+ X
customer-no
* F7 F- K* y& E; G4 Ltrust-ok: X' t% z* k% r& I# s' x
trade-record-one-len;;trade-record-one的长度' l# X& i9 H( c4 u, _2 C$ b: E
]
2 q0 G# X- M( e4 E3 I# s; D
( Q. c' @) |% P# [% b* Q$ A( B;;setup procedure
1 p6 } _3 B5 w2 `# w6 |7 G. P- r# k( ^( C f
to setup
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% \. N `6 U4 U: Q. R' }; Kca
7 O4 X# n! ]) d) W
. k- E% ~9 X2 k* qinitialize-settings
+ E/ {8 N# _, c2 U" f3 n! h% Q$ n5 H3 Q* ]7 [9 M
crt people [setup-turtles]4 q! t0 e" i' e- x" Y* G' A/ a
" |" c! ^7 a4 `, G% o& Z D
reset-timer
0 {3 f) s+ o+ z+ T5 f. J, ~, s/ f6 S$ r+ K- `
poll-class
; j \/ Z! p* C7 C# T; f& U4 W
setup-plots, J' {1 X2 q; z2 L
3 a5 y3 J4 O, ^# z/ y, Zdo-plots, t; @- F9 R3 H0 f- h4 v( A/ t4 J
end
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to initialize-settings3 {& A+ z- B9 k
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set global-reputation-list []! ]1 h0 G4 Z n% G0 g6 L: Z* z9 F
l2 ]& Q* ]) y
set credibility-list n-values people [0.5]. o# u2 U# ]9 P2 h
: K, C$ i8 v* x, [6 ?+ t W* }set honest-service 0
( ]7 J3 e: N' @" R+ l" c! ^- {; }& ]
set unhonest-service 08 F/ T `/ W8 X& b7 d
$ r: B- X! V. s0 D9 P) i8 s2 K
set oscillation 0' [" e6 v* A- l( V9 u
4 v! w2 ^: z, d' I# A- ^. J- F- Lset rand-dynamic 0
! W8 d. j* z/ o5 S! U3 _3 R: }2 T3 w# jend# Z g, [" z$ @% ?. I' [# d; g
+ c+ ]: b5 _5 ~+ c' Dto setup-turtles
9 Y1 ^, }$ j$ x* c4 [set shape "person"8 S% U" x. a, b" Z& ]9 y
setxy random-xcor random-ycor# g- `+ O- d5 f& Y& c
set trade-record-one []
$ m- b! ]: F* |. _( }+ V7 v3 o! X: F% h
set trade-record-all n-values people [(list (? + 1) 0 0)] # C! B4 n0 D6 x) F) c' H1 b
# `: `, u4 p7 N; n. C7 b! i5 Tset trade-record-current []. b: k9 f& s5 K0 z. i& F
set credibility-receive []/ |3 N4 h. b; d- P0 _/ |/ ?' s
set local-reputation 0.5. d2 ?& J- i9 X4 V; W$ E
set neighbor-total 0& B6 D; e0 O- Y% l/ ^
set trade-times-total 0 r) [- B5 T) ]& Y9 `7 z9 N
set trade-money-total 0* M- z; D4 C* z2 r' n7 D
set customer nobody5 [" V- ^+ K8 r: R7 k# b
set credibility-all n-values people [creat-credibility]
! ~- y) n* H* r l9 ^6 e1 y7 hset credibility n-values people [-1]
& [% P# h. t: Y) n. ?/ o; X5 cget-color2 v! ~: W4 E$ q! ]+ O
1 x- b2 T. N8 o) {" V6 s
end# X) }8 x" g& \) T8 ~8 F. g) p
1 T: M, q/ g; D/ \, T/ I, Cto-report creat-credibility; Y9 }* M9 U& P
report n-values people [0.5]
8 Z! `* I- G7 O6 h3 Z" W9 kend' x" S L+ W& {
6 S0 ~( m+ v+ n8 ]: r. j! xto setup-plots
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set xmax 30) ^% s4 G }- B5 ~ \9 |
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set ymax 1.0# H3 B, _( ?. [
1 D4 i1 Z, ~6 eclear-all-plots
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setup-plot1
" Z+ w& G. l; N2 j9 s4 E; ?) [+ i
& b- l1 m3 @1 {setup-plot22 g" E2 E# [2 m4 p9 C! ^5 X
1 k) _, ^3 C; H/ t4 m3 h
setup-plot3
( P- p Q' }6 y# dend
$ h0 e7 _+ W9 t5 r* O
6 ]3 \2 ]& j, N3 j B( \! a;;run time procedures# ]0 g* S. {. I1 O
+ K2 Q Q7 Q0 s' r: C. Tto go
8 w- c3 ]# ~4 g' Z) y& ?( @6 O: u9 y1 l& ]( X
ask turtles [do-business]5 U: W t/ I/ f7 E
end H ]* F8 e6 I q) O
6 k2 S" C/ d- w
to do-business
% ^' z% |+ u" P( G b: x* t2 {7 N. ^- C- ?* b3 y
" l! n; S1 N h8 trt random 360* ^% F) M$ `- a- ^. K2 s9 A
6 R+ Z, [. d& R# Tfd 1
# Z T4 s7 @4 s- p7 o
0 t& p0 u' g4 m: f3 \4 oifelse(other turtles-here != nobody)[5 _+ Q& h7 ~! g4 }2 v8 V
2 V) i2 g" T5 x5 \6 n
set customer one-of other turtles-here2 t3 Y3 |3 x3 a* F% C% O% z
. y3 X* m/ T5 R& B$ q# `;; set [customer] of customer myself: R( a; ?# ` ]9 b$ X% d4 R' q
3 q# x: G( C: z$ p) pset [trade-record-one] of self item (([who] of customer) - 1)
3 s ~7 B/ b& q3 J, F* p[trade-record-all]of self) \7 d/ O$ p J% j: ~
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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# U% U9 O/ w8 C9 _6 fset [trade-record-one] of customer item (([who] of self) - 1)
& ]$ ^8 L( b) ^! Y3 F[trade-record-all]of customer
$ K5 ^8 _8 F7 a3 J9 n, y
$ [* N8 l6 n A4 j6 Z$ Z) X! Yset [trade-record-one-len] of self length [trade-record-one] of self1 {3 L! c9 E5 Y; `2 _' \) @, k9 `
+ w9 a. V/ |/ B, E- aset trade-record-current( list (timer) (random money-upper-limit))% f0 @; l8 k5 W" y6 ~0 R* l! X9 X" R
: X! p3 }* b/ }ask self [do-trust]
& D( Q6 q- L; y o9 T;;先求i对j的信任度
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if ([trust-ok] of self)
! h8 Q( f9 g% ^;;根据i对j的信任度来决定是否与j进行交易[2 t/ i1 u# F* v& A
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself) z u% L9 O' d5 {9 J8 k _
+ F8 T9 m* Y: _- Z0 i- s[
' E7 {; S \% p6 E$ |1 f2 n% ^" i% H1 J
do-trade* a! }0 S/ {- v7 b
0 y2 k- y8 g8 i8 q0 Y% g0 ~" bupdate-credibility-ijl
$ }! R# \/ v' B
+ j- r1 x& o. y# v5 ]+ d& y+ q' K' n# [update-credibility-list: J+ ^* X+ R W" o: r) U# B
7 q' d8 n* t5 Q% V0 ~9 A/ a6 [& [. T- a7 C- B" R0 v+ F, ?2 N
update-global-reputation-list
3 S# g/ R3 Q6 ?5 }2 r1 r7 H/ y, v8 A, d# ]
poll-class$ m, C7 R* n- [* I i y
( t! W+ K2 R( K
get-color2 T% Q5 e4 F/ z' Q
" ]5 G j: n, H& Z2 @
]]
( r0 I3 K& X4 e
! p# j- U' u' j9 W2 Q" z;;如果所得的信任度满足条件,则进行交易/ B- ?9 j3 t/ n6 e9 d
9 P# H W3 l8 S
[! U& }$ o2 w2 Y( M* f+ e
) F& ~# m' V% F' ]) \. {7 U; @
rt random 360
C) j* C0 n H* u8 L' A$ @: L( \% T7 ]
fd 1: B6 v" T5 R- b% _( m% K0 Z6 ^
0 C# [% ? V. `1 o0 A0 g9 t
]5 K# H8 o) m# N. m( h* y
4 L) A! r. P/ E! L' [( V2 J- ?: r
end( f3 t/ s2 F0 h) i5 F! e9 S
7 S1 C- M. z; H8 i8 n0 J' \" o
to do-trust
! m3 W8 e3 {9 ~' Kset trust-ok False4 _9 ~7 w, ~' J+ U& J, o
5 {: h- d- X& H" r; l6 }: ?/ k$ X9 g o/ j! z( G& r( i" W
let max-trade-times 09 B7 N% X+ i `/ G7 |
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
7 I! W' y5 V. Tlet max-trade-money 0
& O" H j8 |/ }9 lforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]9 Y0 l, I) _7 ?7 b
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
: [' p8 j% P& r( t5 \! r I1 j1 U
8 W7 c0 {3 f) y. L. T0 I+ v: W `9 [& H" r; {' O6 x+ `8 L
get-global-proportion' |. E+ _9 a9 Q; h- u: s) x! e+ y
let trust-value
% k& N* o2 J* w$ C8 W Z# [local-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! `& `( e% z- L; |
if(trust-value > trade-trust-value)
2 h4 Q; K" x, |3 {7 q8 s[set trust-ok true]
9 h4 s3 K' q/ Mend
* z3 {6 b6 _3 `$ T+ E0 K! u. s- T; s( S+ t# X
to get-global-proportion [# i2 F* N- n, n2 ]
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 A+ f! M/ b- B$ l[set global-proportion 0]
a4 o- S" z5 i% @7 O[let i 0
X" Q9 `% Z ]5 p( `- c. {let sum-money 0
3 U* G9 _/ \7 C q! ?2 h2 ?while[ i < people]
/ {) i2 u" T; A+ N) ]6 r) _$ x[7 b! w" p0 D: A T' R P
if( length (item i
' L0 l( q z' U8 L[trade-record-all] of customer) > 3 )
2 p; f/ q3 Q$ [4 G[& f1 o% W+ S- r+ H9 ]
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
# Q- J8 R7 s3 F# g]" b. R2 i6 \, V' J0 R. X
]; K6 I1 V1 Y8 T/ R; z, A! d
let j 04 R1 L% g# F' R. T& ] i8 V
let note 0
* l+ v8 X* y1 n% O! }while[ j < people]* x# S Q' R5 A& q; a# n
[; y* v8 N3 Z8 y% P- ~
if( length (item i7 o8 Z% u& D1 ~" W6 G' [; p8 t
[trade-record-all] of customer) > 3 )
3 D7 b! @& {' P3 I# Y[
' {- E* b/ N6 I! T) {ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1), M$ b8 F/ C& N4 B% n
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]7 E" G( \# D# T, j! K3 i
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]0 @4 W/ F1 b- t. Z3 e5 s, y' a- k+ f7 x q
]9 ^. u# S% y6 A
]
5 l% I- i7 U+ p& N0 Yset global-proportion note
+ l( B- A8 Z# R& x- o]8 E, w9 W. l% K: O8 w) o$ m
end
* _, `3 U. z g" R- {! J: V0 R# }$ r) E$ _
to do-trade
$ g% d' @* }2 T8 d;;这个过程实际上是给双方作出评价的过程! I, H$ `6 @ u5 d5 v6 V
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
4 S1 E( L" f' Q1 i" k. Iset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
* J* V& p& D! n$ |9 V+ I3 [& `set trade-record-current lput(timer) trade-record-current5 M9 @- ]5 v: {9 H) x( W
;;评价时间. l3 p g5 \4 Z+ |- |
ask myself [
! T5 z. z! o# f5 v! D/ uupdate-local-reputation
. |4 N1 m' e( bset trade-record-current lput([local-reputation] of myself) trade-record-current
7 g3 I4 i- a* K' u6 k$ p$ m& r. d]
( u' k0 U( u( }' ^( e; I- k" q; n6 eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself3 j% A2 e! r0 S$ J, r1 Y: a
;;将此次交易的记录加入到trade-record-one中
/ q; A( ~; D7 _' B0 W) R/ Zset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)2 H- m: W+ [9 B8 Y0 X
let note (item 2 trade-record-current ): f+ `+ \' O- m/ y
set trade-record-current
/ \; M. ?( d' v, ?0 v(replace-item 2 trade-record-current (item 3 trade-record-current))$ Y9 b4 w! D& u1 f: Z
set trade-record-current- F1 w/ m! a# V; N( K9 h4 r9 l
(replace-item 3 trade-record-current note)
7 m3 }9 x7 e y9 f% a- j) j9 ~7 ?
5 o, ]8 t: p4 l* O2 p
ask customer [
- C5 A* q) s5 P1 J- J6 {: dupdate-local-reputation+ L% h! L2 g. f. \. C
set trade-record-current
6 P9 \$ s. c5 |9 Q(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
3 L4 _; I3 }2 `% S) p]
: U, E# g- W& _* q8 M' ?! G- i! N, ~( X5 ]
/ e4 |/ W, K- U( ?0 J0 `+ f$ gset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- |) J' g0 }6 d
: }$ Q) R4 t9 Tset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" [/ q' y% H' g! S/ q J, {
;;将此次交易的记录加入到customer的trade-record-all中
/ h$ p. y6 T q% `8 B& cend
: f% e# v6 I& ~6 \9 V9 T) O1 f' }1 X1 c
to update-local-reputation
4 _( e( t% ?4 ~1 xset [trade-record-one-len] of myself length [trade-record-one] of myself. e5 p0 f9 e9 r0 i }" l5 ?; `* w
2 R9 ]- Y: H8 z- _# {: Y( q
; p4 l2 W2 X8 k+ z* M;;if [trade-record-one-len] of myself > 3 , B/ L& }0 E/ x0 L* x4 U* x( @( H6 l) H j
update-neighbor-total# ~) o* v& U1 K4 J
;;更新邻居节点的数目,在此进行8 X, `/ C5 y# S7 m; _# H2 R. G% Q
let i 3" S2 ~. ^2 A# W, z$ R; k
let sum-time 0! R, k% c5 A5 i4 c/ g8 N' ~
while[i < [trade-record-one-len] of myself]. f! K* w# P7 d7 m, I
[
4 n) u' b. o4 h h2 \set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )/ }9 ^$ |& p6 t3 l) z3 K
set i7 O: V3 s% g" X( O* l" r$ D7 t! ~
( i + 1)! l' t' z9 V* |0 u9 j
]
2 Y X( |- P0 _- E; R+ v, |% T1 Olet j 3, E3 N5 s H) k& W, a1 @- L. ~
let sum-money 07 X' L! g; M+ d# W* {7 L1 ~+ _
while[j < [trade-record-one-len] of myself]0 p# h6 U6 L' c" e: H
[
. f, A; u/ A& S9 {* L% l- ~; X$ ?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)9 q6 p- x4 G4 c9 e
set j
% v" u( c( k8 \/ c) U% Y( j + 1)
1 b4 ?& A' l- Q: ~# ]]
2 D! p! o7 F5 {let k 3
0 C* i5 E! P7 q& Z& x' O1 H- i' }let power 0# ^+ t' u g; C" f! B' G) Y
let local 0
0 I t% E) \6 x! ewhile [k <[trade-record-one-len] of myself]( ~9 d2 W- \* Z4 Z! e
[
, t, {& A& g( P. N% mset 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)
1 L) \) Z: s ?: m; R: jset k (k + 1)- |7 H/ ~! t2 E/ P
]
" z- M# P/ I" a. e q# Mset [local-reputation] of myself (local)5 C/ T* \9 d; ?( T1 U# k6 X0 y
end9 l5 x+ s- Q" o5 X: K3 u" X5 i7 A
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to update-neighbor-total
}9 G f% A1 Q6 ~& ?
% e* K+ D: u8 X! W% `2 ?/ u- fif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
3 z0 Y# A2 V" a# f" F. ^. L# o8 {
1 n7 n% x: M8 Q B$ [# R0 k/ d& v$ q9 J) w2 o! K5 R
end
, T d, S: W1 s' z
2 p3 C6 d' P- D$ gto update-credibility-ijl / H0 O' s) O! j" S$ N
6 _7 A9 `! }( v, Z9 R4 L;;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。
/ f& i( p# \* mlet l 0
2 _6 l7 O8 w! l5 awhile[ l < people ]) O! e) Q4 k+ s* 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' L7 u; K/ [4 ?0 j
[5 a# b6 m2 _8 ~! I1 X
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
1 }4 b5 f* X: n+ B6 c. mif (trade-record-one-j-l-len > 3)
& K8 |8 \; E4 a[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-one0 M( F- \3 r! Q. \1 ~
let i 3
' _* [' U7 b+ E' ^8 \let sum-time 0, h' I6 Y; S6 \( k4 s
while[i < trade-record-one-len]
7 M6 X* I( E) z% ]* E[
* b# b! J9 K1 P& T$ Cset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
& x1 n' ^4 u" r3 {set i6 q+ p. E6 W/ E
( i + 1)
& A0 e( h- r6 a% Q% ^. z]
, t* Q! [. R) `! v' W4 m: nlet credibility-i-j-l 00 @# q$ i# i" P' p. E
;;i评价(j对jl的评价)
/ ~( `6 h6 r- x0 G4 Alet j 3
$ Z2 y8 \& @3 d- R0 n2 |let k 48 \+ u1 F U- j& ?5 w' s5 a0 R
while[j < trade-record-one-len]
: X A1 c0 }8 H[9 a, h& V1 a2 d; ]7 C2 }, w
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
4 r1 }4 s" l( w3 T" f; x8 z3 G3 tset 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)
- m" H$ [3 u/ C/ y, k$ Cset j0 C3 w3 [. J) ]( W3 Y
( j + 1)
7 i! z2 \( ~0 t]4 r% s- W! X* D, o7 L4 _
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 ))' y4 P2 d- \, w
7 N& C2 k9 r# C( W4 k& H+ w+ H
* _5 @) U5 _9 e' Z& h9 K8 y9 f3 ?) R* elet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))! X! @ ^5 n; X7 _) b# `
;;及时更新i对l的评价质量的评价
% \& W' V, G. o% }. W. r7 @set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]: J" g! I$ y, q4 P6 h; B7 i8 ~
set l (l + 1)% A6 a6 T6 H2 o0 D& Q: B
]9 j: ` R( K( u. {
end8 c# r/ S) [( ?/ E% t2 M
2 I; ]# j/ } c4 |* {, v7 G
to update-credibility-list
7 H3 C- H& p' Hlet i 02 m3 B0 ] b/ `3 n1 m9 U
while[i < people]; n* O4 n1 v6 E
[
, i9 T( {2 Z/ G, elet j 08 [" [! g' V1 X% T
let note 0) X9 ^3 m$ R8 c: d# b
let k 0
: c: M' g- L: e& l4 t& u4 D) u;;计作出过评价的邻居节点的数目& b5 K, F+ E# G$ {, m5 ~$ Y
while[j < people]! A! F! n- Z- X6 y) u
[
8 k4 F9 L: m i2 lif (item j( [credibility] of turtle (i + 1)) != -1)$ D; \: @" X3 {; H' g9 Q
;;判断是否给本turtle的评价质量做出过评价的节点) B! q3 O2 `0 f1 h2 M/ D6 S
[set note (note + item j ([credibility]of turtle (i + 1)))
0 L! y" q9 L( i$ U* y;;*(exp (-(people - 2)))/(people - 2))]9 U1 y2 S7 A3 O. Y$ D" f4 ?
set k (k + 1)% ?: ]$ J9 x1 b+ ^# s! C
]8 G1 c# {8 m8 h5 O
set j (j + 1)8 K" @% ~' p+ y
]4 V) }" p+ {% p3 C% T& y: Q1 S4 w$ p+ T0 ]
set note (note *(exp (- (1 / k)))/ k)" A* e- C; \- f. k
set credibility-list (replace-item i credibility-list note)
; I5 |8 b, a2 e: X U& hset i (i + 1)
; ?0 K% p2 |+ M6 c( x. Y2 G: h7 J* e]& J7 K: j% C/ g- e9 B. R
end. _+ S, }( Y& p% s7 o3 |* u3 `! O' g# b
$ M1 \6 c* `3 |6 |+ c8 s7 ~+ X
to update-global-reputation-list
8 W: w* J4 H6 w) M# ]- Hlet j 01 n) G _' j& n, b; X2 r
while[j < people]6 n- J4 l: n5 l r
[; h! e* a. ?4 u
let new 0 a ]( d, s2 Z0 I. S
;;暂存新的一个全局声誉. }* M4 p( B; A, V1 F2 M
let i 0
# S! e9 W. `+ H, y) P" a& E8 \let sum-money 0
' C& Q' Q" H, blet credibility-money 03 ^& D* u5 ?+ n+ [- U+ V4 _
while [i < people]8 b, ^* S5 V3 J x" ^4 I
[
# o/ f O2 x% G) Oset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 K$ k L) e0 S3 X8 P
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
" r6 x' d" T) ~set i (i + 1)
. X- n" ]+ [( w$ X]) R: o- [. N: l9 D, p3 J
let k 0
, L7 `' J: E( W p% M' F* X3 xlet new1 0
6 h6 I+ H( Q* j- \4 d% p% jwhile [k < people]
/ y) g, `- w7 |0 X" o* }3 F d[; |/ ` l0 Y9 w8 p' c
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)
* o- C. H8 D3 X- h$ lset k (k + 1)
( C9 e) g" u& |]8 e0 w( @5 `8 ]# X* z% C
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
0 u/ ^. D* R0 w, k+ mset global-reputation-list (replace-item j global-reputation-list new)+ S# H. Z+ v) X* A: b4 }
set j (j + 1) \# `; M- L2 N5 o; q
]
& |, I0 d5 Y# [. H& j0 Oend G$ b, U, y- H
6 R* h! x( G2 V1 E5 e
+ j! s/ A+ O$ E9 U/ k. e% _
& k! }+ \1 `+ W8 w% A' Tto get-color" E, A g+ u; P. E5 T
; k+ u) b k: v( E4 R7 R
set color blue
3 F6 x6 ~( K( L2 H# A9 |) Cend
4 S" A) {+ v" O0 | Y% E: k6 K# _4 \+ f, c
to poll-class
, W- m, B0 r8 [# P- o/ nend4 l/ w2 q, A! R+ P( V7 S$ U" i
9 H( H3 b/ U( |* {3 m+ W# f9 ^" c
to setup-plot13 b+ {8 `' j9 B2 r# v2 s7 T( b
, y( J R, r* m: bset-current-plot "Trends-of-Local-reputation"
# E I" d4 V9 o( t" m6 O7 _6 @# C; a
set-plot-x-range 0 xmax* x' _+ b- |' `! l+ p o8 P
. z$ X" M9 o( {/ p% ^7 G4 J/ O
set-plot-y-range 0.0 ymax
8 z) J+ @- c; R- e& c" D9 eend [; U) R/ C8 Z. _5 h6 q& `
$ Z- o6 L2 P) e" B2 P5 D7 @! nto setup-plot2
; O2 C2 @# [: G$ ^8 j: F; S+ G# `2 d% A Q! j. U' X
set-current-plot "Trends-of-global-reputation"
) l; w" @5 o Z& @; h$ b- e; v3 k0 U! u& v0 l; K- o" E8 B
set-plot-x-range 0 xmax2 Q* q- t3 U3 A; u$ l
6 s3 e, u8 I' v/ S% d6 S
set-plot-y-range 0.0 ymax; S* Z. e1 T* d+ r
end( Z0 q5 m7 O2 v+ ]
4 O1 L4 b# H' x2 z( ?, V) W+ N2 H; ?to setup-plot3
9 a# a& q5 d9 @7 z* l$ e& W; t: C6 ]" p7 J: W$ W
set-current-plot "Trends-of-credibility"0 f) X. s, X! u! D T4 Z$ l9 Q) ]
2 `* x! b$ n& Z5 Gset-plot-x-range 0 xmax
3 g( {7 X: g2 R; g. J1 f) k1 _. j( B
% s) V/ y' B) ^' D! wset-plot-y-range 0.0 ymax5 {- }4 x9 ^$ d. e
end
/ |! m. g3 `/ }& L, X# A
+ U8 a) b9 w' e9 Vto do-plots
" A2 K% H9 ?# {7 Y7 w8 g) wset-current-plot "Trends-of-Local-reputation"6 l7 Z) {1 u- `, @7 u2 r% \2 |
set-current-plot-pen "Honest service"2 E9 J. k( f# `! i& G, o
end. d" t* F' f0 z. ?3 T' q# E
1 U& q+ c2 `5 g1 A- P$ t( b9 L; k
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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