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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. p/ R* W& D0 T6 s$ E
globals[
* c2 y/ v; j" k' x exmax- w' C4 a3 t6 c) v
ymax
: B2 c% i3 N* xglobal-reputation-list
% x! Q3 Z1 J: ]9 @9 i3 t, L. _+ \' j' n2 @! p! N
;;每一个turtle的全局声誉都存在此LIST中: |/ O( v0 I3 {* y5 z' g/ ]
credibility-list+ y- t+ [, G* \$ I% V2 u' E
;;每一个turtle的评价可信度
, D2 z% H; n& I1 V( chonest-service2 N& Y1 J6 X* A. p4 m( J
unhonest-service" j' n1 P! c' W2 U; Y
oscillation
/ H' o# Y9 ^/ ?* g+ arand-dynamic
F% D) A6 X3 \1 n" D" S R8 {] }! y/ w9 T" E1 S; z
. w0 S9 R/ e9 a7 } O9 I( Tturtles-own[+ @7 a( Z4 G- n1 i7 }" n
trade-record-all% R' s( t) ~" ^5 ~! x; c
;;a list of lists,由trade-record-one组成8 |+ |4 e% B- X1 d
trade-record-one
$ n! L' f S& Q0 d9 H;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ r+ h# a. r4 X& K8 U* ~
) U h: c3 N( b7 d; ?8 q- [;;[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]]
/ {0 v4 w: I9 Y5 u' dtrade-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]
% O, s! ?0 L0 l& @5 Z, Wcredibility-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
1 `" c. U# x& u7 T" r) _' k. xneighbor-total
Z& n# w" D( e+ p;;记录该turtle的邻居节点的数目1 W9 L, s F0 d/ x z7 Z7 {
trade-time8 _* {# ]. ]2 u3 g7 Z% L
;;当前发生交易的turtle的交易时间$ U% `0 w3 g, M8 W. y
appraise-give
) @$ _7 D$ s, u7 _: P: U- t;;当前发生交易时给出的评价
1 s2 t1 H# j7 U _: Tappraise-receive
" L' T1 H! q7 l! C7 r# C; B; q;;当前发生交易时收到的评价1 g6 O. k( ^# C; s. b
appraise-time& H( U. K: Z- w. ^' d
;;当前发生交易时的评价时间; j! Q3 m- Z' T0 T% i
local-reputation-now;;此次交易后相对于对方turtle的局部声誉 Q: `' y5 C8 k& J0 ?" ]
trade-times-total
# r9 U, a& i+ K/ l5 };;与当前turtle的交易总次数" E; w. e! u7 S
trade-money-total4 b# h0 E ?- k1 t
;;与当前turtle的交易总金额: e8 l. I ~) P w( J, a7 t& `
local-reputation
# }4 ?$ I7 g: }8 kglobal-reputation
1 m* _5 w8 N7 F" L5 L8 \credibility
4 a6 r( u& f1 K1 D5 H+ j;;评价可信度,每次交易后都需要更新
$ A Y& I- q- p. U5 xcredibility-all3 r) }% r t6 s+ j
;;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 ?" y7 T/ o; s s
- ~# p* V6 f) g! h
;;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+ U: b! k7 H% A* {. e0 b
credibility-one
* y1 G7 }) G C2 V) D7 X3 b;;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
( D, q* u; |4 R3 C S: M/ qglobal-proportion
9 `' }8 Z6 u7 Ycustomer
+ o" `1 @" @ C3 g0 scustomer-no. |' s4 w% `% O+ k: i9 S
trust-ok3 k) O: f! I3 A# B
trade-record-one-len;;trade-record-one的长度) h7 I/ L( k0 P: @! x* g& n7 p
]
0 Q$ z) K+ |& f" o# r* d. n z$ X
' Q5 r& C( a3 p% \1 M+ m7 c;;setup procedure( n/ D" g. e: r& Z8 u
1 _% e$ c, r( K* }
to setup5 Z7 l5 C7 b9 \/ T+ b5 O+ b
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ca
! q3 E8 C, U7 \
0 A6 X! i% a7 _9 U: Sinitialize-settings% ~, X' }% ~7 J
+ N; m& E# n7 r6 Lcrt people [setup-turtles]
# }# { w9 [: q/ R* T4 X1 [: v% [% s- n% f6 a; J) Z& R
reset-timer
# M$ l, l6 M. q
. g7 v4 v) W: J V( o" Ppoll-class3 {5 i B; y$ j6 P0 j0 r& ^
2 o/ U! ]8 W0 tsetup-plots
2 y9 l" G0 {8 `4 W% K; X* z) x" Q" W4 b2 |. E6 J9 F5 U( p' K
do-plots
. ?; g9 U$ D0 G. _' `8 Yend
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) |3 c# N' @. i3 O: zto initialize-settings
+ S' u( X' X2 B: |$ W: l; e7 j# W" ?8 M! N
set global-reputation-list []
3 D; r3 h$ A- N' _/ I1 d
7 {$ q2 M. H1 f0 u ]set credibility-list n-values people [0.5]
f% e0 y! }9 K0 E1 c5 V
: l: C" L! p _* u Z! H q _4 xset honest-service 04 K6 H' P0 Z( {$ K J% Y. T, h- B
. ~6 ~. v' C. W* k* f8 ~set unhonest-service 0
7 B# L! l8 d! v v0 h8 A, Y& w
1 [! ? Z1 `/ R' `- s7 ]0 lset oscillation 0: P% ?) K4 a2 o! a; |0 r* o' W
3 P3 d0 t2 h7 Y( u1 vset rand-dynamic 0
# x! m* V2 ~8 j2 `7 G" u: Wend7 t* S* O, j3 J$ S! Z; f, Z! E1 ]& b9 e
, J7 A% x9 [3 j( m2 _# e8 I# I/ Z% ]
to setup-turtles
0 F4 ]5 a7 V$ V ?) ?set shape "person"$ }7 g7 e- R/ N% s1 \
setxy random-xcor random-ycor
; ~1 t1 W5 {& k! l; _set trade-record-one []* _: T9 m9 n! \+ x2 I/ X2 P0 Z4 k
4 ^3 ^ ]' n$ | ]set trade-record-all n-values people [(list (? + 1) 0 0)] ; s2 F# R, N7 a
+ O$ X: Y! X" _* v1 y8 x( a
set trade-record-current []9 w$ ~5 K" h8 Y+ B0 A4 _* Q
set credibility-receive []
/ ^5 V' a# p+ K! nset local-reputation 0.5& N) C% ]- }: J# U/ d# g
set neighbor-total 0
" K3 C8 s/ R" ?0 A. t7 x1 b* sset trade-times-total 0- r) K" M. O% A }* y3 ~- [! w
set trade-money-total 0
5 S+ L M/ n3 E3 H3 }0 |8 Zset customer nobody
- _& n l- V. q: ^set credibility-all n-values people [creat-credibility]
( W3 w* p3 f b7 rset credibility n-values people [-1]' s: y" i1 O% |8 n; i
get-color
% u6 F5 n( K/ g$ m; @8 k' p% Y6 g6 l! F& O
end. r% L4 O: q2 L- L# d
- y/ M: g+ z& X' G/ G" oto-report creat-credibility
: Z/ f" Q8 O& Creport n-values people [0.5]
! d2 s2 t5 z. hend1 `3 n' R9 G$ }
% v) j0 Z& l1 k! @to setup-plots# \6 T, ?( E; Q- k
: N5 t- S+ A* rset xmax 309 Z$ \' g- S/ Z& [+ k9 w
1 R* S9 a6 t( W6 U
set ymax 1.0
1 u" k g9 j2 R' P7 M; M s* u$ ~0 L, r, i
clear-all-plots
3 t' n* E- L8 I! X2 ^) P& B% B- q! C
; m! e# q A' h! |6 esetup-plot1
1 L) N7 c9 c5 ~. s/ s1 o
: S+ b' w- g, C5 g1 fsetup-plot2
4 A* d+ ^$ z/ j" O' v7 n3 \
+ T7 t' e' A' c" Y) Wsetup-plot34 `% ~- _ m7 Q/ f! l& v
end5 g! p3 `1 o. u- f9 M
/ a) j9 v: {, L
;;run time procedures1 G$ p# \, r5 M; V; B# M" d
, D& y$ b; x ?+ Q# n8 p7 ?4 d
to go) V2 N$ ]7 ]& L' `, l# L
" M1 v9 ~% k& N, t
ask turtles [do-business]$ G9 j; t; T7 u* M0 Y5 e" ~7 E6 n
end
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to do-business - l5 c- T5 \* t0 |
7 E- U% c/ C/ H( z6 s" |
& t; S3 K9 Y3 u4 M+ P" vrt random 360! R4 c4 w* m% O
1 X; X& p4 [- v; c" Ifd 1, x0 {7 }! o `4 h7 Z0 }/ X
* s1 R) V7 h, @* L( V( j' {$ K
ifelse(other turtles-here != nobody)[* X5 ^5 B. D4 \" x1 B- A `
3 d" K/ P, O; X3 V9 D; sset customer one-of other turtles-here
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/ [% P7 C$ Y7 u% n;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)" B& A+ u' k: f, i5 z$ ~
[trade-record-all]of self
, r$ |& t1 Q! W# p# f/ H A;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
! B% w+ X4 {0 _) S" q1 X, r- X/ g: ?' Z
set [trade-record-one] of customer item (([who] of self) - 1)) h% ^2 Y _" Z% q5 L6 l, p! P/ R
[trade-record-all]of customer) K" s7 [1 X* I4 K1 R
3 s9 j6 M- f. s7 N
set [trade-record-one-len] of self length [trade-record-one] of self$ U9 t& h: j' ]: E
& L4 M |1 b* zset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]5 f: P) i0 E1 s) M$ F
;;先求i对j的信任度
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if ([trust-ok] of self)) ?9 s: r+ j& H& |
;;根据i对j的信任度来决定是否与j进行交易[+ x& A$ b0 e1 s3 D2 n8 d
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
$ s- o3 J' ^' J: X
6 ]8 M( i4 C9 V- s[( `9 z& \& p" j! `' B+ H
, q: O. e& f3 Q, Z( K5 V# }do-trade( }% g2 J' E( u2 V7 Y- K
& C$ g: c8 b3 R! n* I7 Cupdate-credibility-ijl+ _' p5 r0 V6 Y# W1 l* a
6 n! Q' d* L r: h+ nupdate-credibility-list* u/ K3 ^0 R1 e+ _& V5 z( X
7 @4 ]% o' Q4 c# m0 d
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update-global-reputation-list
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poll-class
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get-color
: E. g, A, [# h5 @$ Y1 h% R; R
$ M4 |8 x+ q3 b* H3 I7 c7 k]]
! |* z# J9 f$ v+ {7 U9 c; J/ L {5 ^* m* n1 [0 c
;;如果所得的信任度满足条件,则进行交易
; O% ~- ^4 `1 t. D. `
$ Y" l( h( q) ~1 P- |; C- V x' v[( j4 Y1 Y9 j, a3 `% ?+ Q8 j
* X T8 s: ~5 I( h2 Mrt random 360% N7 C. Y; v( w% O8 W; T) ~
" R2 Z/ V1 b% C y/ s# x0 ]fd 1% t% `' H$ @5 N2 d% Q$ D1 g" s
: y" A# w. L. I7 s' {# G" m]$ H9 |6 ^0 R+ {+ w$ j4 G4 y4 u
( u5 C# P3 A, @' m8 b. V$ }end
3 x. R/ _1 ~" E. z
( l7 _! [, Q! c: s8 Rto do-trust 2 N0 X1 [8 {9 L' R! v$ o, z
set trust-ok False
+ z. r: i0 l+ M2 N8 V7 Z- i' u4 E5 @3 S
: X! E2 V, ]2 ~1 l! J6 @# ~% \let max-trade-times 0" o, t+ i2 O7 C' h4 Z5 T# K& Z: g
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]6 O1 X& g+ }8 r9 {) B. V
let max-trade-money 0 d9 H- f; A/ _* N
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; K' V S! z0 j% o
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
' l& s0 R9 s. @% v2 N8 O% A' K; F, X- Y5 E' \% y- K. U
# H C! ^6 s) _# r
get-global-proportion9 |2 H4 h5 m; {% d) o; ]
let trust-value
: Z. m! b2 ~4 b5 [$ |5 F8 mlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)$ O* o1 `2 S- g$ Q0 j) M# w1 H/ ^) u
if(trust-value > trade-trust-value)
) G" S7 n8 `. R) A. N# A[set trust-ok true]8 y4 M* r7 t0 @7 c- G0 b
end
& E' |& S& U; ^& a3 B6 K5 c! G& V; I& ?4 }9 T* r
to get-global-proportion& a% r& y# @! F; j
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)# U+ U# d& ^$ @% ~
[set global-proportion 0]
( q7 F# Z2 B& [8 w[let i 0
3 f. x8 O# @1 o/ r. l3 Y4 H% r! Llet sum-money 0
# n1 H! q3 C. u! K6 U5 jwhile[ i < people]
! V& {6 |% V, q& N: R/ R[
; V" v- L0 y. f+ Eif( length (item i, z: c+ h7 q$ ]5 ~* y& s; l8 p3 e
[trade-record-all] of customer) > 3 )+ V! G _- e7 C. s+ j+ @6 _
[
, m8 _- L5 q- B. a6 xset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
8 b2 n" ?6 K+ k" B8 i]. M, L1 q/ m: o5 y ?0 K
]
' C" |2 I6 m2 [2 U' Qlet j 01 O$ U. q; u: w% G
let note 0 r0 K. i2 o5 G" c: l$ W
while[ j < people]
+ }, v5 P4 P% W1 }# Z8 d# b[* ^1 Q, ?7 H B' f4 m2 _
if( length (item i
% ]# X# M' x0 h# o2 a2 o[trade-record-all] of customer) > 3 )
5 n- Y. q1 R0 C2 I' r7 [# L; D[& x1 R8 _5 S) C0 u/ w; y. c
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)" p" l2 ~5 {5 ]% R: f$ h2 V
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]- c0 t" q6 |2 P+ ?; i! w
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]; ~6 e4 l+ K1 d$ U
]6 b- ]* Y) _, `! F* M" d
]! u7 ~% R* @2 G J: {" `8 w% ^5 K
set global-proportion note6 {1 {" d5 ~' x4 a& I. k
]# r) H5 a- E, ^5 }: ~+ m. W; v
end3 K S( z" ~2 k$ J; o
, l" a# h( p, x4 V2 n+ {to do-trade. w7 t7 }3 I+ f! t: k! L
;;这个过程实际上是给双方作出评价的过程, {% K; E! a8 w% Q. G: f
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
4 Z7 o7 y% C) Z5 a7 Eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价 @ t( F' i8 f, k5 N- B- I# ^
set trade-record-current lput(timer) trade-record-current
8 x2 b1 z( z9 o9 O+ `7 K;;评价时间) w7 K: G& y+ b# @6 M4 |
ask myself [) m4 f1 V; E1 b8 m/ Z# j
update-local-reputation
( p7 R) a3 b, X9 Mset trade-record-current lput([local-reputation] of myself) trade-record-current
& S% |" S. J6 J1 h7 @9 ?% u, E]* ^5 L! ?: ]' T+ E% U6 g9 e
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
" D" L$ U, T5 \7 h* f;;将此次交易的记录加入到trade-record-one中
' u2 Q( F$ H1 {6 Aset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 F, ~% L- x! ]" ]8 o
let note (item 2 trade-record-current )
* d- e- Q& x! N6 ], P: zset trade-record-current& P/ N6 `$ f' Q4 V( e8 V) f
(replace-item 2 trade-record-current (item 3 trade-record-current))
, Q) r& T" n! n m2 k2 ~set trade-record-current
4 a" M: H. i8 ?5 w(replace-item 3 trade-record-current note)
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5 j; b+ @( [2 j" o8 e5 B: |" C# ? u$ R% M5 M9 f7 U
ask customer [
1 e2 U7 \2 _. u& ]& n) w+ J3 vupdate-local-reputation
& n* Z, |2 K& }( pset trade-record-current
# w2 o- R6 c8 V: c(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
" n6 U4 o) h; l U, j]+ y; Z/ x9 a& r* J+ ~0 u
2 w; o! o" \: E8 S
3 ^5 n- G" V0 C7 E8 E2 e9 t0 Lset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 `" }# l& V4 H0 i" w
, C" }6 }8 K9 B& J' r/ V! d, D' I; sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))& Z; E' s. y/ M+ v: T& X
;;将此次交易的记录加入到customer的trade-record-all中
, \0 f# h% V* }end8 i' k! M' B# |; N; k9 u
# N+ `" Z' B6 U* Uto update-local-reputation
! z; [" c9 H' s- Cset [trade-record-one-len] of myself length [trade-record-one] of myself" Z' b" m0 R7 v* Z* f; o& W
, z; M9 k% | R! C/ N& Q& ~2 i
: _0 x" w6 G) L5 j, D;;if [trade-record-one-len] of myself > 3
+ [% Q8 H1 `/ V& w+ qupdate-neighbor-total. ?4 M I7 }+ l. D( U# k
;;更新邻居节点的数目,在此进行
8 a6 \4 K |3 Z4 wlet i 31 j& ?* Y6 c, q6 |3 e
let sum-time 0
0 @9 b: L& ~" u+ b9 zwhile[i < [trade-record-one-len] of myself]
6 i( t ]7 u, L, u* Y) k[
! ~) x- g- @' ?; ?8 y4 L) G, qset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
8 f7 q$ b7 y! I8 b k( M4 f6 Aset i
O( U. Z4 e2 b; G/ l( i + 1)
/ \2 d( v4 {% d h" L$ `6 `: c9 ^. g]8 q7 z" O5 W) G& |8 x
let j 33 q, S# q5 W/ `% x+ n4 m
let sum-money 0
5 e! u8 f. ?& {& twhile[j < [trade-record-one-len] of myself]% A7 p1 Q' Z& N8 K
[: D. n3 p# X8 l+ i+ o
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)
+ z( C1 P; T2 ]; x" Z. nset j- M5 {. X# \& n* d/ c
( j + 1)6 ^9 Y. ?5 { S# {' n( }
]
V- c1 P! R1 zlet k 3
\( p9 R/ p8 H! w' z7 _let power 02 f9 ~3 [/ l5 ~8 O
let local 0
0 V2 }3 I0 P9 Xwhile [k <[trade-record-one-len] of myself]
/ @! o* q' t4 c1 Q[
) U0 B$ d5 L: ?) f) d7 rset 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 N3 x2 C- ^6 w) c I% X
set k (k + 1)
, o& a- H2 I/ F( s' K& ]+ g]" A' s) L0 ]4 O$ ]/ y
set [local-reputation] of myself (local)
. U! |# D, _; R1 j6 Gend$ d2 B- ?2 |. m
6 w; c6 ~" t/ gto update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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$ P4 L5 X+ F, U3 |7 s
, }6 ~5 f( Y/ R5 d- send
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to update-credibility-ijl
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;;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。
% o/ W5 \. d$ klet l 0
& r: B+ n3 P1 N9 I2 Iwhile[ l < people ]% ]# G6 i$ D# [% W0 G' K/ J
;;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1 C$ T+ J- M& _# _
[5 R Z8 B+ B+ {: ^$ \
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
2 y# ^! M; Y3 Q+ s( o9 Dif (trade-record-one-j-l-len > 3)
4 n( `' [; B3 b( \5 ~+ k[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 p! E0 a2 J4 V/ o: H/ Elet i 3
- T' {2 P2 S3 K! Y1 \8 slet sum-time 0
! v( H* K+ G* L' V5 D* `while[i < trade-record-one-len]
u" Q) B$ z$ X[$ b( b5 u2 X9 [" r' _
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )8 a5 }- Y$ }2 e8 E
set i- O1 g- K# f e
( i + 1)/ _) ^6 _6 }2 ~5 j% B
]
" S; K( a2 Z7 Q- n" j8 ?let credibility-i-j-l 0' g* K% x3 [- m, p' F
;;i评价(j对jl的评价)" C/ ]; W% p, W2 T, O
let j 3# B( p) g! A1 A/ c8 e8 W
let k 4
4 V y/ N# _" C9 Y& `while[j < trade-record-one-len]# a$ p. D2 B# H8 j/ {% d* s
[
6 N; w. |) H3 Q. F8 L1 _+ E2 t9 v9 P+ p! bwhile [((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; |& A" v# u+ o! ?) 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)
0 Z' {( z, t# o7 b l9 l! jset j
) I- V" @: w1 n: G( j + 1)
8 g7 x) F2 p, P( Z6 d]: D, Y1 b! F7 A. Q, X3 S4 \! y
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 ))" F9 f: k" |* n. ?* o; o
; n5 A6 ?7 [ F: w
, p4 Z9 | g& m, f0 `7 h9 T9 ilet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))5 l& ?3 ]/ Z5 S7 T
;;及时更新i对l的评价质量的评价% k+ z* `3 B5 l: a8 f# ?7 f2 Q
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]: c+ Y1 J- ?; Y" y3 B/ Z! _6 G
set l (l + 1)
$ ^) c8 t, J$ N* F. `* F8 ?]
: H7 k- F* l Q/ N5 w* ]9 |end
$ t, Y" i u8 o' E: `3 ^: M0 \: }
& Z& N$ j. C+ J0 o$ E$ P a& `4 Tto update-credibility-list2 t/ O9 B. ~* \( w( x0 u* e# i
let i 0! \+ `: Z+ v1 D3 m- ]
while[i < people]: u: A9 D- x+ S2 w# m8 z. D+ B
[* G; C# |' i( ` Z
let j 0
: ^3 R2 a3 ]0 t# Llet note 0. ] X: x+ D# `( Y
let k 02 K0 E6 L# H% e# V1 c
;;计作出过评价的邻居节点的数目' _9 v& P# o/ L% i, j6 ]7 o( t
while[j < people]
1 _( m- S6 K; M: a0 ^ r[
& A, i( _/ e! T; |3 Hif (item j( [credibility] of turtle (i + 1)) != -1)
- }/ o) i9 Y( t. J S3 m# m;;判断是否给本turtle的评价质量做出过评价的节点; c8 ]9 Z1 T, g" |! {
[set note (note + item j ([credibility]of turtle (i + 1))) _6 |7 q* N6 H
;;*(exp (-(people - 2)))/(people - 2))]
7 \: M! h! W2 p1 n# {set k (k + 1)
; O9 ]7 o# [5 `2 }/ w]; e" r' f$ M$ w, r2 ]2 ~
set j (j + 1)( O' `8 Y4 S6 l! z5 E9 D1 S. G
]" u0 l' ?8 @& M4 ^' a8 a
set note (note *(exp (- (1 / k)))/ k)2 |' l @8 ?' _$ Y4 k" h' C: A
set credibility-list (replace-item i credibility-list note)
% i2 S# b0 U6 ^8 U/ p( I( jset i (i + 1): l6 y& n2 T) B8 H5 Y
]
2 v& e( N4 L1 z6 l( d# k; Gend) x2 U* ?; ~$ i/ M
* Y: T$ O9 r% g9 w' D' d6 X' S: Zto update-global-reputation-list
5 o- y6 K; r! W' o8 |# v, [2 ]let j 0
H6 G9 m2 d. N7 k, M2 x$ Mwhile[j < people]: \# l8 f) m2 v1 J0 m( k
[3 b1 o! |' M5 m6 d% `
let new 0
1 f4 z; L1 w" S, E;;暂存新的一个全局声誉
# m+ g7 l" p* V) K: Flet i 0
7 _* X6 s% t6 g3 _2 `/ y% clet sum-money 0* [5 P* ^+ Y2 j: Q2 ^
let credibility-money 0
# J6 Y& `, l" Bwhile [i < people]8 k" w7 R5 @# f) O3 S) I
[4 A; M& i. j3 ^
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))5 |9 \3 y4 V, U; ?3 Q8 T. f
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
" v$ }/ ?- |& d8 @* Jset i (i + 1)
6 k/ N+ |* k5 Z7 w7 F M* L]
& l' `, ]: k5 i2 ?. Vlet k 0
+ C$ K# W0 V8 A# q4 f7 blet new1 0
6 q4 ]" @: Z. N0 X' r! v. T9 Zwhile [k < people]
9 [3 A) I4 K. E; ]: {4 z& x+ S' U[4 i! b: h0 g. i. i7 O0 Z6 E M
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)/ Q _2 T; y1 W k' j1 c
set k (k + 1)( I, a$ S) X" E) }6 A
]: D" y" N. G. ?# b0 R4 g2 @, N
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 8 E- z# W. A( c# z2 J
set global-reputation-list (replace-item j global-reputation-list new)
" Z& A( ?6 ~$ a0 \8 N% Z# p: Sset j (j + 1)! W+ a& y4 N0 v- }/ N7 C$ k
]
) d. |' i5 H% n1 q2 E Qend
/ S# g$ Z. z2 Z$ I8 }+ M
; @2 ^8 u0 x* F/ q& O- p2 l Y9 M! f$ b# j& v" B) Y
* C+ p! I, D0 [" J1 ~to get-color% `& ] |3 Z- f3 i( F
& V" Y& p* o' E3 q' \8 Q- G
set color blue! G% W6 r' i/ x0 ?0 ^
end* `$ o* [. j+ @' [3 {8 }
$ K7 _! T" f' b9 {
to poll-class
3 K4 Z/ Z# i7 y/ hend
8 r9 i& x3 `5 ]- F' e
s3 ?$ v+ k+ P# x# E" {to setup-plot1
8 ?2 x; T d O4 @& N: Q+ G
7 W' ]9 O0 r* j* p* pset-current-plot "Trends-of-Local-reputation"! J9 j4 V# l O3 X3 z4 B' L. |
$ B: J9 u( ^8 w. \set-plot-x-range 0 xmax1 \: S& c c! c/ u! u
1 [ n$ s6 Y8 G6 u; Z
set-plot-y-range 0.0 ymax
: a7 Z8 t; D4 E0 u1 pend/ Y5 ~4 N3 [0 M. z
: {' b+ X4 X" F6 eto setup-plot2 Z$ G6 P6 `. J7 h
- h4 @$ Y$ R2 q& l' b* _( \5 `set-current-plot "Trends-of-global-reputation"# c5 ]' C0 X. [% J8 Q4 B
- M, o# [# y7 p M8 |2 g
set-plot-x-range 0 xmax
/ i, ?! w9 S5 N p& S8 D0 m T3 e" H8 @9 u' X" J" G
set-plot-y-range 0.0 ymax2 ]5 e1 @; {9 C
end
; p* t8 l5 R9 n7 D* e. t& ^7 y c7 t- S
to setup-plot3
) d% y* O; t$ h' \! g: X0 }7 ? q' e6 G
set-current-plot "Trends-of-credibility"( F% D, I& F, s0 J8 y C2 D7 {9 {
4 {* P5 s/ C$ p! J, ?7 W9 y
set-plot-x-range 0 xmax
7 g* ^; K+ V5 c* k4 {. l( X% C0 M4 S9 o8 w" W0 X, R4 c; w
set-plot-y-range 0.0 ymax
% f' `8 g, f7 Z: Y2 Z; C2 h; K7 tend
! v$ f' ]5 h# Z! V$ s
, d) T" z6 J3 u, I& l* e7 k! ^4 [to do-plots- s3 \" U! U: I0 A$ J
set-current-plot "Trends-of-Local-reputation"% w5 m" B( p4 z W5 s
set-current-plot-pen "Honest service"8 C% ]; E( p; q4 \5 |. _5 A
end
1 B# N5 b$ L/ ~" B q0 c3 r9 Y+ O. Y% z" G; e0 J
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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