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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, E1 S( s; W) @4 v* G3 ]& {3 a, M
globals[/ j2 s0 G- |! l* @% j
xmax
! z$ [6 o' h& s$ K Symax
/ x3 i: F& `3 a8 F" y4 ?* Vglobal-reputation-list
) }+ ?7 j2 n u- z$ C, E+ r2 J" m5 }# z9 ^1 V7 V3 H1 f
;;每一个turtle的全局声誉都存在此LIST中' k6 C& T5 t2 \" \7 \/ Q9 R
credibility-list+ |+ q) Z$ m- W. m( j( E' y. C5 o
;;每一个turtle的评价可信度+ C- ^3 J( ^( H
honest-service
4 b8 b" }2 N, J) g t0 Munhonest-service( K* C! V6 ]2 t
oscillation5 L3 H) A) U& ~ c$ B# y# {# i
rand-dynamic* K |9 v* g% B( Y8 r7 ?4 Z
]+ U6 y8 Z1 x4 a, [ ^$ r
, V8 \9 C, R2 c, l7 ^7 Bturtles-own[
' r: {) B& L1 N2 ^6 Ttrade-record-all3 u/ f7 }9 G+ N$ Y9 Y
;;a list of lists,由trade-record-one组成0 o; j3 |% l1 ?. h X$ _9 x( v
trade-record-one& m( f- I" @) G0 r
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录- t! L# z# V) l0 @
* I% Q% T. V$ q: m, n& |;;[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]]+ P- c% F, c& ]0 ]" S
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]6 }# z4 v' H! k9 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
, j" w; h) f+ j, z6 H- vneighbor-total
0 w: B, P }$ V& D# I" S;;记录该turtle的邻居节点的数目! u v5 t4 K; e4 R+ }
trade-time4 c% i: o' s1 ~& F; n# d; L1 i: Y
;;当前发生交易的turtle的交易时间2 P3 r, L3 ^0 H& W1 ?+ Z$ l" e
appraise-give
. {5 N( [. V5 S* X% G. e' m/ \$ _;;当前发生交易时给出的评价
* r/ Y% [% ]' z1 h$ \' y+ tappraise-receive0 f( }9 o- H# R; {- G) F
;;当前发生交易时收到的评价, \- i& f9 \' u
appraise-time8 s4 U! w6 p2 j+ `* W9 j/ @
;;当前发生交易时的评价时间! u- u* M7 q7 ^# y8 o
local-reputation-now;;此次交易后相对于对方turtle的局部声誉2 Y! u% V. ?" ~7 u
trade-times-total* k7 y6 U. m/ e9 D
;;与当前turtle的交易总次数$ F# \. W/ u* ? \; Z
trade-money-total
" K. H5 G7 M" z6 [7 Z;;与当前turtle的交易总金额% Q% ?. u( Q7 K1 ?+ A3 K2 M
local-reputation% g8 M* ]& ?. W, y6 Q
global-reputation$ _6 u* S0 l3 o) e2 K( d
credibility5 t& K& X/ g2 r& f0 x+ K- ]$ C% W P
;;评价可信度,每次交易后都需要更新5 q S4 D. }: e4 B* ~" U
credibility-all
3 }1 O3 }' @) |# B& X; Q3 e;;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$ X7 O2 F- ?. u
) a) J$ T& q9 g( T;;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* W0 a& z& q3 e/ J
credibility-one
. H O, w+ h3 y;;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
3 o% }. ?6 d' ?: h- }global-proportion
% q: N) m9 a- V# u4 Qcustomer- [+ I* s' c1 N1 a; {3 z' V$ ^
customer-no! ~& j) f; ~, ?0 l
trust-ok& N @0 ]8 r) H/ O. K6 u" Q5 Y! h
trade-record-one-len;;trade-record-one的长度& R9 Y3 r) w6 X* n: m* F
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8 L/ n/ u0 L% J, J( W# D" l;;setup procedure: x8 W( M! a' c9 d: C
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to setup+ t+ ]# |/ c+ l9 Y+ h) A
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initialize-settings
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0 V, z8 m# s. h8 B, T7 `2 Y+ h C/ Ecrt people [setup-turtles]) o% e: P4 I1 O, o, _2 V; Q
) Z+ I" V8 x4 ~6 }: {8 g9 P5 W2 sreset-timer
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poll-class
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6 ~) P! H( l4 `5 i jsetup-plots( e* h: s4 g5 V9 V" S5 U0 T$ }) ?
1 ~! E3 v* X+ f6 [1 |do-plots5 k3 e, ?" r5 G o
end9 }7 V: t2 @+ ?# [
# O {3 `3 a4 i$ B8 d/ N3 U; ~; x% Xto initialize-settings
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! i2 `. Y" o8 `! r& b- Uset global-reputation-list []* G# f% H1 W, L5 l; ?
+ Y) R0 F0 ~5 D, l! L1 F
set credibility-list n-values people [0.5]% |$ d" J+ h* @+ ?( H( d/ k
0 c4 ^" L9 n$ f5 D# x [* Xset honest-service 0; T; z5 c- ^$ c) E
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set unhonest-service 0
* `; y& l6 e! Y j+ x
( ], j8 g) J( ?7 v+ jset oscillation 0
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. H( C( a- O3 Y9 Dset rand-dynamic 0
3 Y ~/ Q1 V8 j6 R: f3 b- v+ f; Gend9 i0 B9 U: P- Y1 P- C, m9 w+ b. H
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to setup-turtles . G' M: d6 x7 B- v, \% b7 x
set shape "person"( g# f% A+ A3 @; O* ~) `6 ~
setxy random-xcor random-ycor, k7 a; V' g' c; L" E5 H& p. b
set trade-record-one []
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) N+ T% t2 V7 P4 n, Yset trade-record-all n-values people [(list (? + 1) 0 0)]
0 `1 B! ^$ v' i& p9 H
: v: c8 R z/ k9 |7 R( }set trade-record-current []9 w! T/ Y) k: ?& z* M" x
set credibility-receive []
7 [: [3 y' ]# J j: dset local-reputation 0.5
- U* q7 F, B8 g6 S5 ^4 A/ W9 d2 b. Uset neighbor-total 0
7 E/ L& h4 C+ N4 d1 oset trade-times-total 0& G# }+ X6 F+ }( B2 ^- m. W5 ^1 v* {( k
set trade-money-total 0& \$ W5 U, [( t% e8 u
set customer nobody6 U0 K6 o6 s0 q
set credibility-all n-values people [creat-credibility]4 p! w' i3 v- T7 F
set credibility n-values people [-1]2 `: V1 Y5 d% R. f: ]
get-color
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end
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! ^! h9 c9 g8 {% |. u, G! Kto-report creat-credibility/ o5 b7 O3 M+ f2 U D
report n-values people [0.5]0 z5 j1 M8 O0 k6 h3 |% t
end4 k1 i) L' i9 r6 W; W
" u' X; B- p& g4 z! e7 Y' ]2 Zto setup-plots
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7 P$ W! X' I; {$ n( ]) }set xmax 30
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& T! x f+ d d Jset ymax 1.0
: n- w, g1 m! D7 J2 V0 u- j/ \" G" u& X
clear-all-plots$ F, \/ a- A7 X v
& t! c# }% B$ `! u1 Wsetup-plot1
, Y( Z! H! M5 A" X+ p. z; v
4 Q, J+ d8 @, @% \% W" w5 y0 U$ `0 Nsetup-plot2. F7 |6 x0 V$ G. E* B
/ V0 i* x4 H6 {7 H1 @6 c3 U' esetup-plot3
$ ^. C+ ^+ S# J& ]8 I1 l7 uend. d2 o, i7 H' F. k- l; s
7 ?& P$ S% c7 }$ }) c4 ^7 [+ B;;run time procedures/ A/ j& d7 V! b2 f. M
, C' k2 c% e8 c( Wto go
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ask turtles [do-business]
5 E" K3 a+ ^. }# c! Cend2 J! {( e2 a( G# R' l: M- h& d+ Z( q
! G" ]# t! F+ F7 wto do-business $ R) K% ?6 [7 i0 a" }+ o& w/ \
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rt random 360) U6 x5 f1 z! O' e8 ]/ W( S1 Y
" R& N. c: T6 Lfd 19 y ?0 b% Q/ D/ k& U" w
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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# Y, q; a5 k* L E
! @& d; N' l0 n' b& s4 ^set [trade-record-one] of self item (([who] of customer) - 1)6 o$ _$ _3 T# B7 ]- \0 U
[trade-record-all]of self) t7 @) Y( t [9 s4 u
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self' O' Y" a4 D$ E) M3 B& k
# {8 `! }. \$ g1 cset [trade-record-one] of customer item (([who] of self) - 1)
; s# l' O* C& n6 J4 l& v5 L/ d: G z[trade-record-all]of customer4 M f7 R# O1 K4 b M
# t" j% w6 w0 q P( R) [set [trade-record-one-len] of self length [trade-record-one] of self+ g) d; X2 `$ J, s, V* z
: A, {8 s7 N6 q
set trade-record-current( list (timer) (random money-upper-limit))6 C7 j9 j7 u5 [" {
6 L% Z* l* V, W8 I. m
ask self [do-trust]
2 c5 X0 T2 x5 c* p; `;;先求i对j的信任度0 i' ~9 w R* b1 e
* ]% O9 L. {4 U( B7 O2 I/ @2 t/ r, ]
if ([trust-ok] of self)- A9 t% V( _+ ]6 T) I+ x% {
;;根据i对j的信任度来决定是否与j进行交易[
! |8 O4 S: M3 a* E5 R, iask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[ x3 X1 v1 u6 X9 G2 w; o1 R
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do-trade
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9 c! C6 x) W1 V2 Z! I2 R$ Lupdate-credibility-ijl
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, U* K6 h- s4 |1 M8 Y! Fupdate-credibility-list9 p* N/ O3 v, I( j
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update-global-reputation-list
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! c* d4 U( r5 W' y( ?poll-class8 {8 X* \& E% G2 p8 L
: Y- _. e L. ^7 [get-color- _ u/ ~0 E1 s# E0 {
5 K! N+ U" \5 i7 w# |+ E. f8 }
]]7 f- I4 N- U& q& s% c, ?
8 W7 G& p( J2 u/ z;;如果所得的信任度满足条件,则进行交易
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9 p: R! p1 q7 V' l4 w[
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; E4 S& a$ B+ B( D# J4 Q4 Y0 Wrt random 3604 N/ o! z* T; F7 M2 D
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! O. C* E" }% D, tend
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to do-trust 9 Y' ^. K1 Z e+ [& P% V
set trust-ok False" G, v8 \7 o: C' b
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4 a. o h d" E% T9 F' L3 vlet max-trade-times 01 e% R3 T" | t" F& z( K
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]+ i4 {3 B0 |1 Y7 [. ]" K. O% |
let max-trade-money 0
3 R, ^: m0 q* N v: X' E6 vforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! _/ R6 f. u; Plet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))2 K2 S1 b# J, L) f
, w2 g& F- U% q0 t- b
P. D! W/ F6 d Tget-global-proportion
, v$ C6 I7 \( S9 r8 \let trust-value
1 h" N2 n9 ^9 X: `* olocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)0 n) q# b) G/ Z4 @
if(trust-value > trade-trust-value)5 r9 |+ u* `' f
[set trust-ok true]
4 j1 u# b# }; P" {" |end7 y/ y$ l$ Q. {5 w7 ^3 l
h; a% G! }1 r- {+ \: K: d
to get-global-proportion
0 D0 `5 `6 c% ^. F7 Iifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
2 b* A5 _6 ^" k6 @9 ^7 N[set global-proportion 0]" C3 y# E" ~* ^; l, C" ?
[let i 0
& E, B# K8 u5 t/ m. Hlet sum-money 0/ i3 N( J- m$ _. v8 K0 o
while[ i < people]( R1 i5 r. B+ l& z. U
[. Y' c* `& B; M# C! y* Y% M
if( length (item i
7 U" B) j5 ~8 c% \$ u5 j4 I[trade-record-all] of customer) > 3 )
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% h9 j) ?% O4 w5 D$ tset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
8 A7 h3 ^$ u) F: d]
4 J1 o7 E( H- h! l], `! u* D4 X1 B# }, `5 j$ u7 J+ E l. |
let j 0; K$ e5 D; `; W% ]
let note 01 c4 A/ u: G/ S6 D1 h% ~
while[ j < people]
; g8 f/ _( }5 \0 H# d3 N[+ @7 D p/ G* Q' y3 k
if( length (item i
9 s, i7 f. C- o[trade-record-all] of customer) > 3 )5 {, s% O: L& K9 S6 {& X# G
[* w2 }: N+ |; E+ {- z+ K, ^1 E
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)# i" n( k/ t: i/ H2 K3 v' v4 W
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 m( n- y4 }- R1 V8 Y$ i) K$ @[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
& b" V- S2 W" J5 C/ g& f# ?4 p) z]$ `4 ^4 H$ F0 s. ~, }* _
]
" o0 G! M) p4 Y- A+ r3 pset global-proportion note
9 M& O. k. O* v* F]
4 F3 Q* p* c4 F, N5 J, E$ mend
* y1 H- H' H, b: w5 m# ]
) m x8 T0 N1 w. L( K2 ito do-trade( B" x+ c9 g6 X- H
;;这个过程实际上是给双方作出评价的过程) j% W3 C6 D! ]5 M* t: d
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价+ T7 T8 r% k* u" v
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
" h. K/ |8 \+ [) L3 n. s0 u: dset trade-record-current lput(timer) trade-record-current
4 l& ^7 y+ L9 u( \ _: b;;评价时间
" h* N: i/ K/ Aask myself [
2 z0 E3 b. _. {: d5 Y. Vupdate-local-reputation
8 { G/ v. x& i' p5 Pset trade-record-current lput([local-reputation] of myself) trade-record-current. s" w5 ~9 l A. h' q
]( h( K4 B& j% e* d% |. G" o
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
0 X' K/ f. Y% Q9 {2 c& B' G;;将此次交易的记录加入到trade-record-one中
K1 `: ?. ]3 E: n% nset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 |- ^& P0 a; `: |' U
let note (item 2 trade-record-current )
3 M& @; p. T* G" U5 q/ U* Uset trade-record-current
- E3 m1 D# x# z3 t(replace-item 2 trade-record-current (item 3 trade-record-current))
. ^$ g* D' P3 cset trade-record-current
- L6 h& v; B0 ? K3 b7 e4 W1 D(replace-item 3 trade-record-current note)
0 o* I8 M {' Q ~
7 j! X4 n% M8 c8 w" x
, r& V* u$ Z' N* [; k. Wask customer [* i3 ^$ l9 h+ b6 n, p$ a) g1 t
update-local-reputation
% o) L0 n; {' _1 f) @set trade-record-current9 `' z |5 Q# k# u
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
3 B- ^" n. I6 w6 N7 S* K# U]
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4 e- M* n# B4 _* O) e( q9 \
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 w, P) j. q% i) x
, ^7 E6 m: `( Y0 {5 G. g! aset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ V" @6 b( ^2 H* R. d! r* @;;将此次交易的记录加入到customer的trade-record-all中* ~- S! M7 b( E, c7 h, _
end
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to update-local-reputation2 B# U7 J# F$ J3 Z% S* s e2 n
set [trade-record-one-len] of myself length [trade-record-one] of myself
6 k1 Q& Z+ N* d1 h+ i
1 _7 H" ~+ g7 G3 ^& e& i+ f5 c" j+ s8 |7 s2 f% x5 M
;;if [trade-record-one-len] of myself > 3
* X/ o6 d# m7 R0 e6 |8 t, O7 `7 Nupdate-neighbor-total
]$ p8 k2 k' _5 c/ I8 q0 b;;更新邻居节点的数目,在此进行
7 W) [7 w8 w- ^1 u4 N, |) alet i 3
) n2 N: |9 z: Blet sum-time 0( K- b& S$ [, N1 r
while[i < [trade-record-one-len] of myself]
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) T; e& K0 P) w# dset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )) A3 K9 ^, l% u8 E
set i
7 p- g- G# T+ j c( i + 1)( ], g6 L# a$ E8 P+ m4 Q/ s* Y
]
" M0 C' k' c' J6 s0 M0 Hlet j 3
+ `+ B% {0 {5 Y/ wlet sum-money 0
. R2 S1 c @ @* T' l- o5 Ewhile[j < [trade-record-one-len] of myself]9 v) y- _) W) i U/ ?
[! {. ]* d/ V" v; t+ 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)
. c: ?2 ~+ v( Z( Wset j
4 y3 y9 a$ p& R/ z3 F, z! V% w- a( j + 1)' h- ^& F. b+ g
], X/ f+ R5 c: ]& O
let k 30 b: a* r! J( c/ h) ]
let power 0) t8 E- h! W2 |( n
let local 0* U# C5 x h% P$ `
while [k <[trade-record-one-len] of myself]" y6 [' p6 X6 @' D* F0 ]! C Y
[
0 L6 Y' X: _# i; Qset 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) / a0 u8 ~3 A9 @( m" d! ?( V
set k (k + 1)" e: @: E* D$ h
]
3 M( H1 {8 Z- a7 c1 L pset [local-reputation] of myself (local)$ O/ N+ G' L( W5 E4 |+ T) S2 _) p
end# J5 \! O& J' { W
( B6 G9 `- w; \3 X( ato update-neighbor-total0 u8 ^0 v! K U
! h- e R8 B5 N, L1 Dif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end6 D& b/ i: A/ e3 _6 V& U' {
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to update-credibility-ijl + v! N- y' Y+ R/ v/ P
. C4 e; `9 ~2 }9 k; a, r;;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。
% s O# c( g2 y' |) klet l 0
( G4 o; X3 j# R% f% l1 Awhile[ l < people ]2 f V7 Q0 Q! _" S# p6 i$ C, Z
;;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0 W: p w; l8 p7 {/ V/ B
[/ T) t3 i. S& _: b9 K
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)8 z! [6 A9 t: W6 ]) S
if (trade-record-one-j-l-len > 3)7 }+ |" H. y3 M- Z/ T# 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/ ?( r! q# u- C R/ W
let i 3
$ V# E1 X6 n0 }; ~0 A: u2 Slet sum-time 04 t" h( x' p4 I0 w, I. @/ Z
while[i < trade-record-one-len]7 ?( g0 D- l* |/ y9 ^
[
' w* u5 J t" g) |2 a9 s; t& \( @set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
. J* _- K- x6 K/ Q: E' T! p, gset i
# Z3 u7 ~3 c# m a: I( i + 1)
" D: b$ R+ d8 y4 e- p( I( C]
( h& ?% B+ Q$ |. T- V$ plet credibility-i-j-l 02 l2 @* ^5 x6 r# C- n$ E
;;i评价(j对jl的评价)( u7 ]; t8 x* L3 U) m8 E
let j 3
) N; M2 S! U3 ]1 A6 g: o" klet k 4- @# g2 h# y$ i
while[j < trade-record-one-len]) L4 f* O" n' [5 ?
[
; a1 d. w" W" n0 U# i Awhile [((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
6 Q6 R7 |: C2 w/ H3 k% mset 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)7 K7 t, {4 J! Q
set j3 _' t3 A7 s( P1 L
( j + 1)
8 \. m' u( k, ?3 P]* m) ?/ Y& E; A _( ?# h
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 ))
- ]# S3 o( N- q4 f
' N# {. X' ^' v9 B$ d( a. g: q
4 u# I- g) c! Alet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) U3 e- E# q% O) j/ i0 U w% D) e;;及时更新i对l的评价质量的评价4 {. d" B" M" x1 @* L3 }& D1 P
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]/ d( J" M, B# E& t* G" i* N
set l (l + 1)
" X- E @' v7 ^6 G9 }7 T]
# }$ U4 t2 K9 c1 B% H" pend Y) s7 u& p" B8 e# }
& j) e5 ~" c) e2 uto update-credibility-list( [/ o$ \0 C4 _; Q/ ]
let i 0, Q+ s% `* w0 N3 v* m$ V1 z4 E
while[i < people]
; I: G4 S: D, I/ S/ S: ?[1 k2 `/ p( N2 A+ j1 W7 b
let j 09 e2 S# \; @6 s+ I2 `6 c( o7 E
let note 0
- \7 G a" d& m$ F5 glet k 0
) \2 C6 i+ A X, k* W' z7 M+ D;;计作出过评价的邻居节点的数目
& I1 J/ R& H- v; S: dwhile[j < people]
& z7 c' I7 t& A1 F4 S[8 G# Z) I; A: s, u- L/ s) U9 k
if (item j( [credibility] of turtle (i + 1)) != -1)
' U% [( ]% Z2 H7 t2 [;;判断是否给本turtle的评价质量做出过评价的节点
0 g. i, T( y8 s( v[set note (note + item j ([credibility]of turtle (i + 1)))( i" a1 M# c0 |6 y) ?" }
;;*(exp (-(people - 2)))/(people - 2))]! I+ z& n, X% M7 R2 E
set k (k + 1)
! \; K: L7 j2 {: ^]6 S7 Y5 F. D l$ l% t7 |
set j (j + 1)5 X+ r5 U/ s: V; B
]0 h7 v2 @7 t2 O! i" p% l
set note (note *(exp (- (1 / k)))/ k)
; x7 t! d' b9 t3 Lset credibility-list (replace-item i credibility-list note)
2 q% _6 d0 R* a0 W: {- Jset i (i + 1)4 h. j! U! }0 @7 W
]
. V! t3 N1 x& m' |8 D; \4 ]" kend
* x! W* q a7 Q0 p) T
$ Z9 D) ?8 V: qto update-global-reputation-list3 u+ T! @4 V8 I$ V# K
let j 0! U: W0 ?# R, Z$ Z& \
while[j < people]( A N A4 y5 V1 u& d8 d
[
" H, K, n1 s1 h0 i4 _3 V# l' llet new 06 @) g7 ^+ M3 t5 `& `: t& P
;;暂存新的一个全局声誉
) Z4 h% \( l0 G1 d* Jlet i 07 U) \" P/ t+ d! y5 V/ C& m: L3 y
let sum-money 0$ j) G, q* T- T, x2 y7 Q: e0 I2 |
let credibility-money 0
+ V1 P2 |- h( ]6 Lwhile [i < people]
, w' T8 d% Q7 T0 f2 d[
* |& D- B. P! D/ B: B$ sset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 N( d2 o0 {. D& ^' Z) Fset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- i; D- a5 Q g4 X' \7 i" g S
set i (i + 1)
8 F( {) g" ]. I( R+ T5 Q]7 A7 Y& ~* S' q9 q
let k 0: h. [# J* e$ ]4 b
let new1 0
* R8 K/ c2 d( d* K/ o, `! Pwhile [k < people]9 t" r& z( A% H) ~& X w$ z% v, c: K
[7 ]6 t1 M2 Z1 j7 \) _' G4 F7 Q. d5 S S
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)" c' k5 m! a6 D) B8 G& a
set k (k + 1)* `$ p8 ^8 M3 I( u& @4 v
]
4 M2 R8 K2 u$ ?& w$ D; O9 Fset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 4 A+ h" L3 l7 T' \
set global-reputation-list (replace-item j global-reputation-list new)& H" z. V9 u7 b2 l# s% G* H
set j (j + 1)
6 T) M4 D4 z) v2 |]/ ]1 G/ E3 f# \" Q# f
end. A) @& N/ @6 e& w* x2 L p
j! e& B3 q1 @3 h* X
; c! w: ?3 N) M S( G4 F3 @5 y2 |0 t0 z% J5 L1 `
to get-color+ l. Y: ?5 u7 O s. a* O3 _* a& h0 x
' b8 v4 f& I' ~% V' J" l/ F* J' R! V
set color blue6 {' g# f1 v9 y$ |
end
$ {; D: H( |8 x/ @( I0 N0 r+ c; ]. Q) A
to poll-class( T* l8 s7 _" x& v& p# g
end& i- h% b5 t$ K- b
* R8 r" ~* j/ i0 r( c2 ito setup-plot1
" p& u% Q0 P$ h. r0 b4 V0 A/ s+ S$ s3 ]: Q" m. ?1 C7 p0 r- W
set-current-plot "Trends-of-Local-reputation"
. n4 L5 B* g4 F3 [
7 u4 Q9 m9 s m7 F1 E! iset-plot-x-range 0 xmax/ J) m5 B+ x9 T3 O2 {! z1 D
: ]' |/ C# ^9 S5 H
set-plot-y-range 0.0 ymax! |5 M" t) Q+ S. F: O' p$ Y
end
, |- E( W) A6 `
* P2 Y: ^( x% M2 C1 r7 H) rto setup-plot2
2 S* `, P9 A/ ^7 |7 i; P, ?% e
set-current-plot "Trends-of-global-reputation"
: G9 y2 P; X- I% n: P
) j- [. \( G* J) A y+ }$ H2 Gset-plot-x-range 0 xmax0 `, T' ~0 V" y) _1 W2 c( Z, r
4 |* z9 ~" \7 i3 i/ [7 R
set-plot-y-range 0.0 ymax/ A3 t1 c( r' W4 D0 v* p
end+ m w- K; O$ R1 E; H, z7 p
6 a+ v& L1 ?- @5 Y3 Y
to setup-plot3
+ G( \$ _ ?5 g1 ~! F: h) `- l$ ` S) L+ F4 D
set-current-plot "Trends-of-credibility"" k2 q: i3 I' I( i/ Q
& ^7 w! \( q- Pset-plot-x-range 0 xmax; F! l0 N. c. ^* F$ Z. ?/ H3 @1 O
& r$ d# \1 t' D8 s' k8 E( P5 G
set-plot-y-range 0.0 ymax! j4 n/ N% m7 ^
end
5 \4 O" P% Z K: s) N- x* k
9 z% A4 [ } f; lto do-plots
3 x: C3 O" G5 T# k/ t9 [+ m2 N( K" jset-current-plot "Trends-of-Local-reputation" \( c f* X# |: L4 L% S ^
set-current-plot-pen "Honest service". }& ~0 P! O& V+ p/ S
end M$ [* ]- E% t
C! i4 q; n s" A; d[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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