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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* D1 M, X8 F' X
globals[; ?1 K5 [, d K/ L
xmax
& G9 f# g; I2 `3 `ymax
. ?7 I6 r: S! X! |: }" Fglobal-reputation-list
( G' I$ {. ^4 @: t' C7 z
! G. x6 l+ j L( m;;每一个turtle的全局声誉都存在此LIST中
( {+ G, L2 C/ s/ {/ K+ h! {credibility-list9 ^. @) F% a1 r+ f* s% Y# E) _$ p! ~
;;每一个turtle的评价可信度
2 ~) A1 n/ w. P' o' p5 Y" X- ohonest-service
1 Y; P, E3 o6 ]) ]; n3 e3 }unhonest-service
2 t% E: k. A& L$ V4 T+ Loscillation& l5 i% r7 Z6 E4 E3 H7 b
rand-dynamic) i2 Z' V! ]7 {6 r/ s
]
% q3 u+ I; K* g1 D Z& G! h8 M8 r( x: t9 ?& x
turtles-own[4 u |( D5 m; c. a* m+ v
trade-record-all
* o1 {: R/ u/ U K& c: H;;a list of lists,由trade-record-one组成
; Q3 d5 ~' l4 M3 R; y3 Ztrade-record-one# f9 r- M& ^5 j7 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* `0 P) x+ d1 Y8 G
6 z; [& e+ e/ B4 g/ p" x! ^2 K;;[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]]% a" J4 p8 j+ G3 D
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]0 S5 E. K( m$ V0 [( H
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
, |- S$ Z, V0 K" l$ Qneighbor-total ]' Y: m3 p& g( ~3 G# b' N6 p2 k
;;记录该turtle的邻居节点的数目
) t8 C0 L% A$ a qtrade-time
( ^4 ^/ l! e4 r3 l9 u;;当前发生交易的turtle的交易时间/ t6 b0 X/ G% V* ]4 s
appraise-give
& Q# B4 B0 e& Y# f0 Q;;当前发生交易时给出的评价
, U& l5 m6 A: o2 `* Aappraise-receive
% Z( o, s% V% ^# W" k6 S% x;;当前发生交易时收到的评价
5 Q( f6 @# n0 {+ ~3 L! Qappraise-time. n: x0 @ k+ K. K
;;当前发生交易时的评价时间! f* Y+ J% L6 X$ {- w! u. r
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
0 k3 k x1 o. ptrade-times-total6 v5 y) w6 v4 k$ z+ v6 Z' G
;;与当前turtle的交易总次数1 ^. ?, {, q4 O
trade-money-total, T/ W6 [9 m6 f8 D) G% r
;;与当前turtle的交易总金额
: S2 M) x8 \/ g0 `4 j! _; Z H7 Blocal-reputation: }" s2 _5 c L0 H K
global-reputation
* o- z. Y9 H; ]1 I! Q5 E0 Hcredibility( O$ u- I! t ?. x
;;评价可信度,每次交易后都需要更新
- \4 A" j/ X1 m4 v9 ucredibility-all
, H0 P" V! H0 ~;;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
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2 B1 L' p! l& [; A8 |;;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0.53 K# J% v% f+ u' ?, {1 f
credibility-one
- I. e5 d% o# E;;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 k! e( U n. i# R6 T% C% |
global-proportion
$ `/ b. s. D: _customer
8 i: e) l$ n4 S( e2 q% [/ Pcustomer-no
1 F5 y+ V6 [; _ b% Z$ O* htrust-ok. H" ^/ r! Y+ p, Q& J: k
trade-record-one-len;;trade-record-one的长度
8 J3 D' x" d9 K1 S]
2 j- B3 w0 g" f u1 O7 B7 w1 n0 p" M1 T% ?, b
;;setup procedure; T# l$ S. S- t2 O) i$ f( ?
) l( ]# b7 B0 u3 |3 }to setup
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3 f- g9 e% K- v3 aca
, V t6 w$ X1 P; P+ f2 U8 y/ @8 h: [: {3 d6 l& h( K) V
initialize-settings$ n0 r- Z1 V/ e$ P, N2 Y2 U
( I( s1 o5 x8 d+ A; Ucrt people [setup-turtles]
4 ~7 d G1 [; G/ ]7 T
% c) I. h, ~$ treset-timer* f8 i+ d; J" o/ l, Q4 A- t n
% D( b9 p+ p" kpoll-class8 i0 ]4 n5 y L: c; T
+ N, E5 `# Z- Z! ^
setup-plots& Z7 h* [1 V: v
+ H3 Z. [+ S" W% D$ w; j
do-plots4 j* N& e2 g# n$ Z
end9 L! v! ?- x$ A3 \4 u4 D6 `/ h( L+ ]1 A
7 N, l, [" O6 r$ h: i, B& ?to initialize-settings
0 a2 c, x- F; q3 ~* k3 F' e# y9 `& w" b
set global-reputation-list []7 X: U" U7 o8 d8 h
) |( A1 K$ t9 B! s; p4 y4 f3 o- O9 Tset credibility-list n-values people [0.5]1 j; n' b: w; `( I2 E& o; N
4 y; o2 k) `# ~# x |set honest-service 0' C. @% o4 N" t7 n
. B/ a; j, _" _+ U
set unhonest-service 0
0 R! W2 Q& S8 F5 Y, T" V% |. A' _
7 Y$ ^' N. P) \7 F& M1 W3 B0 [+ l7 l- tset oscillation 05 k: a/ Z1 s; a% l" R
5 F" r; Q" D/ l& ~
set rand-dynamic 0
# d2 z+ }$ E! @+ u' P- K7 C2 v2 |end
( i: Z4 ?1 Q4 y2 f+ N
0 j% J* b8 K6 ~( @+ q5 h# Z xto setup-turtles + y$ C. P3 B# e ^* ], H
set shape "person"
; K+ s7 N, W4 ]$ I3 k1 ssetxy random-xcor random-ycor
2 f1 v, [* K) ]0 s5 b5 _3 Bset trade-record-one []
: }9 J# h( ^8 c+ U
6 h9 F& h( Q& W/ s; X$ Gset trade-record-all n-values people [(list (? + 1) 0 0)]
' w8 \8 ~- K) }# n- H
t6 v [8 Z5 M+ oset trade-record-current []
. g" E3 O' {1 ^* `set credibility-receive []+ k" T% Z- R+ n& Q9 l
set local-reputation 0.5
$ A) w# \# ^( l; G" @set neighbor-total 0
6 u, ?6 E; l S* Lset trade-times-total 0
& Y0 u5 ]3 ^4 tset trade-money-total 0
$ j! ]+ a6 c) n" Xset customer nobody, |! r- e+ K8 w0 f, m1 C: M* N3 a
set credibility-all n-values people [creat-credibility]
8 N v8 s& e5 f0 zset credibility n-values people [-1]
5 p# A* H# x; {9 N6 X, T) dget-color) h8 [+ g4 t G( g# A2 X% S
( F: f$ {( \+ s. c$ Vend( F+ x- u6 y" h! D% i( b, d& `
# o- i0 O" d- p8 m; Y
to-report creat-credibility
3 W& P, c, M$ R4 X' l: n; }2 e2 Ereport n-values people [0.5]& P+ m. ?5 i& W/ q
end3 Q+ H( L4 X+ }6 w" T2 w/ z) o
. P' [- `5 }6 O J: H( y4 C: H
to setup-plots
+ U2 F( X* @6 r& }# ^, e" m) ?$ ~; Y! L) w$ c
set xmax 30
/ ?2 w$ v* R; W1 J5 Z. N5 U
- u8 O2 ^7 p- W6 gset ymax 1.0
& B' L U q0 U/ q' _7 @3 Q- |5 k4 O5 w- b& |6 _. }
clear-all-plots6 O4 ?; x6 a* J* w) @7 `0 z4 P
+ {* o. x# u g z3 [setup-plot1* w) W1 x/ ?1 o9 v, |
& Y% ^- _, P' k5 _( B! C4 ^9 Ysetup-plot2
0 v" E- w& j$ I: {& b2 v {
% @3 `7 [2 Q! e2 H0 |4 Ssetup-plot3
5 K& `0 ^, Q8 j+ g1 s2 fend. t `7 q' W9 T: P/ c* S
0 k0 x$ M0 K3 d;;run time procedures
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to go
% V: z* I7 {8 a2 `3 e4 [* Q! ~3 d' o% M3 T& ^5 }
ask turtles [do-business]& E& ?3 Z, Q7 v* D/ A
end
$ e4 k/ u: {- o% z+ F; k" B6 ?
6 B5 P5 }0 O+ W' L6 `to do-business ) W1 ]2 m+ q* `, u4 O
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: E/ ~9 k. P) w
rt random 360
3 x* n& U2 x9 y2 `* `4 D. c' M& c+ ? i/ k+ {- e
fd 1% |% V/ V5 R, L) M h. y
@, u5 U3 t3 x$ N- D) G3 S! ~ifelse(other turtles-here != nobody)[
4 z5 Q0 W! t! S+ a% V2 f( U
3 V ?, W* u+ N5 }set customer one-of other turtles-here
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;; set [customer] of customer myself0 b1 H& Z- _: f; @3 i
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set [trade-record-one] of self item (([who] of customer) - 1)
H. M( W9 }- H4 H6 O$ N1 n[trade-record-all]of self3 R. q4 e! O5 Q; x
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self5 y+ |+ E" H. }% X
* z( \$ i% q: |/ H1 e/ Y2 e
set [trade-record-one] of customer item (([who] of self) - 1)+ c- `8 t9 j; U7 G% m
[trade-record-all]of customer+ _% i- b9 S7 j' h8 X9 n0 G; G- v
. |. T5 P8 U( `) s. Q- o' w u
set [trade-record-one-len] of self length [trade-record-one] of self' c/ v0 y0 d: \1 Q
: _8 m, X+ W8 Cset trade-record-current( list (timer) (random money-upper-limit))2 F* S& j! i# a0 r0 r" \
: t, l* ?/ }- m, h9 D& i8 Sask self [do-trust]
' d( c( B0 y5 j* ]* q _;;先求i对j的信任度! S4 H) P( V( u( S9 f
- K0 U( A; r3 R( F* g* U! L+ r" t
if ([trust-ok] of self)
; w6 y/ T3 _8 f% j X" ?;;根据i对j的信任度来决定是否与j进行交易[3 k; ~0 N+ B7 B$ Y0 T B) V
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself2 z0 b9 u, o6 \: {$ Y( ]
9 Q5 `% e H, _[" r7 t- j) v' U0 v8 L. [1 D: q% q
( E. q$ R: S# y1 W) ?: |! m( z2 j- V
do-trade2 ^" E0 v3 n+ A/ ?+ D+ {. q
( ^: e `/ R* d* }" c: C, S" j
update-credibility-ijl
% K! Y- `1 U4 e4 P: F/ `* c3 M6 W q" D) ^5 j% N4 b
update-credibility-list
# Q/ ~+ D( K; J" T
u( q! A* J0 A/ b$ o- T2 V9 Q1 ?0 I9 i: c' C
update-global-reputation-list
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poll-class
) K+ a& Z1 a2 q+ \5 H T7 o. z0 a J
get-color3 n. t- E6 k+ E! i8 ~8 u
) n2 L2 s1 X$ o7 v
]]: @, r$ H# A) k( {- V
( M% a1 z0 j, s' R* P) @;;如果所得的信任度满足条件,则进行交易1 g3 _7 |+ M' ?; Q% u
! ~8 x# g8 o* y& P& V: B+ S[
T% {; J, |6 s J4 ]* L4 R
3 ?* a3 Q+ V7 T+ ?rt random 360
& I6 b* J& H% s: ]
' q$ B: f7 H: u% n5 @8 |# |fd 1
# [! l2 j" u9 D- G$ Y2 |: B3 ~8 n5 Z$ d; `. k* A2 L8 y3 C
]7 _8 e& Y$ P% S" f! X8 l8 C: H
0 ?+ l2 }& Q2 l ?. p3 }! ~end
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to do-trust 5 g: a$ ^' F# n
set trust-ok False
; D q# O, L# d7 x S9 I( x. J- R. ~6 K9 x" @& J
+ E* M; @: C* E- ?2 }$ tlet max-trade-times 0
# f8 A: a& `$ e7 ~; e5 dforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]' e$ A0 {4 U- }# ~
let max-trade-money 05 D9 i- x% r! D) d; x9 W+ f! s" V% `
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]5 V5 B# T5 ]) Y* a
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
* d9 @ s& @, E+ ~% h1 o5 S
# a0 ~ p( y0 s* ~7 r' Q+ G9 i" E1 p: j2 Q1 Y
get-global-proportion) P( U/ v2 \- ^0 ^8 I2 ~9 j8 j
let trust-value) D( t6 q# h/ T$ k( o; y
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)7 c4 c/ N+ e* o8 P
if(trust-value > trade-trust-value)6 w8 _7 @ i* L( s
[set trust-ok true]' U. M, B5 d4 d4 r/ a( ?2 K
end% A; G, g0 f3 m
; ~* J1 W* S9 z" j
to get-global-proportion
: N( e& g7 p& H* Nifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)5 T( Z5 i- _3 X( T
[set global-proportion 0]
" h% M- X) x8 Y }: ? ^) L2 b[let i 04 X! M( x7 E& D9 E
let sum-money 08 ?* W7 x9 r* W8 n6 l4 s
while[ i < people]- t. I" a4 _( G. a" B! ?- g5 r4 A
[. g8 ~7 m5 R( V2 H! ~" j. g
if( length (item i9 J% r" a5 z$ o, S
[trade-record-all] of customer) > 3 )* y( ~/ `/ |7 m; F* q
[ Q0 t( d5 u# X1 ^, e0 U
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
8 Y/ D1 g* U& y, s7 u6 R]
# R& Z( W7 A0 ~3 c/ B0 K]" ^# H6 e' [; T7 t; k
let j 0; G, {* v0 f* n. J5 y5 G, R
let note 0; J4 }) T' ^8 q% \
while[ j < people]/ U5 N2 R+ A+ w5 F' C! T
[
, f( G. h9 u1 y% `5 }if( length (item i d( k1 f, G6 } n2 Q& h( U) ^
[trade-record-all] of customer) > 3 )
6 c3 \. h- X0 R( L) x' {[
; h$ ]; Q& V/ W) k ^( ^, difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)7 M& V# _ R6 y5 ]' l
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( s! O7 S0 f n$ [& l; D4 ~[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]5 _* j: o# V$ b! j5 X8 l
], a. f# e* O& H& b( H; m C* {
]
2 N5 s8 L3 Q# R9 Q& xset global-proportion note
( @0 t# a* ? y' S' B% M]
, o8 o9 u8 m0 d6 p- L3 [5 Vend6 a5 ^7 j# a5 Z0 s% m+ ]5 L
4 [; ~, e7 V7 B3 Z
to do-trade
7 Q' V9 C& I6 N5 L% ]8 r;;这个过程实际上是给双方作出评价的过程
5 o! A& W! Y7 _$ f. |0 L5 Oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价+ i' \' d+ Y8 h& n" E n
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价' p6 [) L. R6 @. m Z I
set trade-record-current lput(timer) trade-record-current
0 u4 o+ S8 [, I* J* S l! ~: [! K# D;;评价时间
9 [( P( h* R6 X( `6 S8 k0 ~7 Eask myself [$ V( |9 Q; ]' t' P; Z+ T% I" _
update-local-reputation& C l" l; c( ] R7 k
set trade-record-current lput([local-reputation] of myself) trade-record-current' s' z5 z4 r: g/ ]# F( J Q
]
" y5 q) E1 Y3 y% _# _0 jset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
9 D& e" L @0 a;;将此次交易的记录加入到trade-record-one中6 f, Y4 V; y" N5 _
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
1 I. B n; j7 elet note (item 2 trade-record-current )0 k! z9 Q) J) }. {& h& i
set trade-record-current
3 d( b2 N. `! x% Z& g e(replace-item 2 trade-record-current (item 3 trade-record-current))
( }8 x9 W' g3 V0 D o) E$ Fset trade-record-current
' Q( X/ ~- L( j2 J- d(replace-item 3 trade-record-current note)
, g+ a3 n# s i! G t. q
# b$ n4 r6 `3 a8 q1 u2 I0 h5 R9 [' c: P3 ?! W5 M/ }0 _; B
ask customer [
. h L3 x& d1 R7 X. a" Uupdate-local-reputation4 m1 [3 N9 |. l8 ~6 V
set trade-record-current
' [3 C+ y- o: H5 s: g D(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
( @' w/ C6 b9 A6 C% i: ]5 {) q) F]
" H; `: O" }$ I& f% I1 {7 ^$ l, O/ d6 L- I* _ R/ D! u, w
# z% E; p* P$ v3 mset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
7 g' w* @" a7 ^) q% F0 v5 v$ a& [/ ]# c; `
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
8 a* c m- \. c2 D9 `/ P;;将此次交易的记录加入到customer的trade-record-all中
' S' R# G1 Y/ Nend% f6 ]0 L# _. f; {% [1 O
6 n: p0 X: X; x# ?9 U2 t$ ^to update-local-reputation, ?1 d) f2 O7 j
set [trade-record-one-len] of myself length [trade-record-one] of myself# m6 p, I( U1 {5 X6 z. b
; m+ H. [5 R* @7 @
$ A/ p8 b! }# b p;;if [trade-record-one-len] of myself > 3 }1 G& w& s) \1 C0 b
update-neighbor-total6 q: v4 s; {' I4 ^
;;更新邻居节点的数目,在此进行
. O, S" X. H+ jlet i 3
1 M/ I6 }0 C3 i% K H, E. [- glet sum-time 04 Y' l( S- ?/ V
while[i < [trade-record-one-len] of myself]9 Q% t0 D! S/ S* \
[
$ z) i* ~. I5 J+ _4 y9 dset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )- d8 [8 ]5 q- E
set i$ c, b$ _( F* K( t o" N+ J2 |
( i + 1)7 }, S' r r h+ v1 e' Z% r
]3 u+ [! ^/ ^) g1 Z6 l) Z* @
let j 3
. B1 a+ A( v% N6 n# O4 b alet sum-money 0( z9 M" k# `* \1 K2 ?
while[j < [trade-record-one-len] of myself]
7 v; I5 P( ~- D# L9 H4 J5 O5 Q[
' b6 y- f5 F5 W, W! U) q- N2 Uset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
2 F h1 O' W; d; H Pset j
0 D0 D9 D9 b9 D- j6 L$ }# g( j + 1)
* o# v4 e: B& r; H, a$ U]
4 R. c! I. w9 ^! t9 k2 slet k 38 J5 b: s7 W9 P+ N' X2 Z
let power 09 M- }6 i: z$ H6 j
let local 0$ K" r3 t# H! I8 [1 K0 {" i
while [k <[trade-record-one-len] of myself]( Z$ m9 }1 p, g, C/ K
[) f. v; M0 `+ S8 m9 i [. X
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)
/ H# P: X+ e* N3 D/ Iset k (k + 1)* ]% P& I4 L, o
]
6 X" [ N7 E4 A4 dset [local-reputation] of myself (local)
7 ?! k: e$ n4 q) [( Jend- K. K& a2 ^! p* a0 ^# U
' M" ]$ x9 q3 i- V5 r* m/ mto update-neighbor-total
9 Y% p/ \. \) Q9 s! }. Q! G/ A/ r! g$ Y, R0 K& a8 ]6 w
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
1 H7 a9 J! Q3 I
) g s3 [% \% u* q0 B+ G, ^% T% ] M0 ?
end* r! v R9 B& w" |( d: e
1 L7 w9 G2 R) @1 |
to update-credibility-ijl 6 h* a* n. c" c8 u. r9 o
2 @6 c, B" |3 [% [1 V( c
;;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。
- {$ b2 n4 O5 p4 x$ blet l 0$ Q |# n" Y) x( r6 o" c
while[ l < people ]8 @- ` s3 K4 d( ~. x0 n
;;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
4 A: G9 A( ^7 _! a3 p/ f+ }' {: ^[6 R# N9 g; s6 Y! _1 f2 b
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)" `/ d( @6 a+ F+ z* o T+ {
if (trade-record-one-j-l-len > 3)
# D, M% B, S1 o0 X: [5 I% O[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( m9 P) |0 q$ K( k( C$ U
let i 3
6 D) C9 e8 [) l4 qlet sum-time 05 Y1 l7 x4 w. i- L- F
while[i < trade-record-one-len], x+ d" l$ X4 m$ p! o; ?& C7 `! c
[6 ^: U% c3 ]9 d0 L( S3 f0 w* `) s0 `8 a
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
& z: y; ]8 R" X3 `set i
2 ] a; B) X/ g( i + 1)
. |/ b: h* c3 M2 ?$ x4 X9 t]% H/ q7 ~( ^6 a
let credibility-i-j-l 0
0 k# L4 `& Y% p* M;;i评价(j对jl的评价)0 e L0 |$ F" a d0 L
let j 3
0 f' E, [ x% I- a rlet k 4
6 t% C$ K3 _; a5 [while[j < trade-record-one-len]. T; N2 W+ {- \8 w: x! b0 S
[9 T9 x; f" G6 M
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7 u) H# J, d% H4 d8 m8 |
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)
% C6 Q' `% X. p% V1 ]2 Rset j! ^" ]+ U+ A; ?; {3 W' `
( j + 1)& }4 k8 ], ^# c8 y
]
?' ^+ t$ M2 ~ `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 E5 x2 N' }9 V" {! o7 S- {1 I, |7 n8 r/ M
* A5 U* @, n% Q* N- N% y9 j
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)). a% d9 u4 c7 y: A' U: a" f) h1 q
;;及时更新i对l的评价质量的评价4 Q5 S7 V5 ~/ r4 a5 M& \( f0 N; o
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]1 Y6 U) u7 Z) A7 E! X9 q# J
set l (l + 1)
; k* U ^" U% ]7 f]
, ~7 C( M. r1 r$ J% c7 iend
2 H7 }/ M) Q; U& W( Y7 h( x
. w( u, z. ? \& nto update-credibility-list
; F. ^2 x) |9 o7 k& C( W; ylet i 0, n4 g3 `0 O& `% Z& R! [" W
while[i < people]
0 A5 n1 Q2 D4 R[7 C& B3 \& O+ u% \" L7 _1 m6 o
let j 0) x# ~6 X1 G1 b2 N
let note 0
( T$ [# J1 W! \5 _- n: elet k 0+ K* ~+ `9 @4 \1 h5 {0 K% O
;;计作出过评价的邻居节点的数目" L- I2 h9 ^; k$ E4 P6 J. \
while[j < people]
3 L' c5 f8 j2 `[; W) `: z2 J7 U! P
if (item j( [credibility] of turtle (i + 1)) != -1)
: P3 c% I' S+ j3 Q% O9 r;;判断是否给本turtle的评价质量做出过评价的节点* [$ {) t) D3 o& b; |$ R& _
[set note (note + item j ([credibility]of turtle (i + 1)))
! U' u0 o# m& P( }: |; T;;*(exp (-(people - 2)))/(people - 2))]8 t& f) w- v6 L. W0 J5 D
set k (k + 1)
% S" {9 W i- [. Y- @/ X]& x4 F3 m% \' ~
set j (j + 1)7 y1 @. E8 n4 [+ P, J. c
]& A$ @4 | @$ _
set note (note *(exp (- (1 / k)))/ k)
5 X* o3 T, A+ `! I& `set credibility-list (replace-item i credibility-list note)2 @( ?( J- d4 i: }9 H6 N0 e
set i (i + 1)
: t% d# q$ V2 K7 T]* Q/ m3 A- C: y D/ W
end/ j% w% W/ F }$ z o
$ n9 A! `4 H3 p! jto update-global-reputation-list
3 o$ S* \5 {& A! o6 D& B# plet j 0
& f) G ^1 r R k) r1 U9 c4 Twhile[j < people]: R5 J% V6 D/ | C4 s5 c6 A
[
1 }3 E! M! g+ ]2 c5 H# ?let new 0 f7 g+ g/ P c/ u, A
;;暂存新的一个全局声誉 {1 @* y2 l3 P& T" o
let i 0
% {6 R+ L" ~' ?7 C Mlet sum-money 0$ Z& A) Y5 Y7 ?, b/ x* u
let credibility-money 01 J# C9 J" v$ R4 B3 D$ e( h& Z
while [i < people]
# O: y/ d. h0 `2 `[
& Q& \- x+ r% F0 ^/ A/ ^3 rset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
m/ L! u6 ^' }8 M- k! Q t. u0 Pset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)), s! X- g8 J; C5 E5 q! ^5 y+ R
set i (i + 1)
, ?! T$ s1 k' `9 k1 x7 q]) _+ i+ D" V2 x8 h$ D4 h
let k 0, M: X- f0 I% I0 I8 W1 f
let new1 0
, Z _. K* F" p& Kwhile [k < people]! e0 |2 y7 y8 P* h6 A
[3 I4 y5 ]; {; G: {2 H* }
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)
2 B) H& }5 C' _9 e; Y4 ]% @. Eset k (k + 1)2 v% N" ~; T* C1 x
]
4 B9 \ F5 R* T; R, ~set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) / J, D- i0 R& t1 S' h8 u, j
set global-reputation-list (replace-item j global-reputation-list new)& [! ^3 u2 |! \8 H: q" j
set j (j + 1)
. q7 Q) ]+ G& z+ J' l]
z* {* q# F9 q0 [0 Yend$ f% z% Q2 W/ ~8 \" \$ W5 a5 @
8 G- \. K, `- k3 q; K8 q# L9 L
- q' ~. g% _; i$ l& x; H/ J
" A( h4 m& @0 X" ~* E+ c- R
to get-color
+ }$ P& O2 ?0 U! L% M) J6 R! h, e$ b6 g9 L A! V0 a; D
set color blue
# l* x* s2 B1 u& @end
* P, Y6 Y5 w9 B& Q }" A
8 s. Q/ @, v4 P7 `% Ato poll-class1 x! K. h/ k7 s+ [* e
end
: k Z, t9 P: A% [" p
( O8 h# t5 Z ] v- vto setup-plot1
9 @" {9 l5 S( L4 v0 f- l& Y
: x5 y" V5 J* C% ^/ p7 Yset-current-plot "Trends-of-Local-reputation"5 m' f8 h1 \9 O/ V( K7 \3 C
+ ]* f; y. O8 F' u7 b& P+ o
set-plot-x-range 0 xmax
) B9 J8 ]4 P6 a+ b/ ]
3 X6 W" [5 I) _" S& {' }set-plot-y-range 0.0 ymax! D1 p. s" {9 r. M) d
end
7 n/ O7 C& p' B( w, q% n* t) V$ l* Q9 O/ b5 r8 W
to setup-plot2: j1 K# |, t p+ p
8 E+ M+ D0 f3 C( L- `' T; C5 jset-current-plot "Trends-of-global-reputation"( I7 n" r( c1 z5 |* O3 C ]
& Z& M- O' O7 t3 Oset-plot-x-range 0 xmax
* @3 f, N* G9 u( i: B V2 @: a" U e8 U B4 x
set-plot-y-range 0.0 ymax$ ~: v1 g, o- r2 }
end
# [/ Y1 }: n3 H) `; F$ w1 Z) z; @% }0 R: y# x
to setup-plot3
" z& r* J& d4 o1 P0 }+ U7 I' D" G, I* y1 W. d7 T( g2 R! ?
set-current-plot "Trends-of-credibility"
& P+ g7 {+ { M/ L4 @
, M0 ], ?: s! x/ i9 Pset-plot-x-range 0 xmax
k3 \. E4 e/ l" M. a- |3 G2 x' s7 w
set-plot-y-range 0.0 ymax2 x! ^1 i0 F: m4 S: b2 }
end( |, c: d6 f( \0 {) N; a+ \" C
m- g6 N6 {! t2 y9 I
to do-plots2 i3 b4 H- p! m+ P, \
set-current-plot "Trends-of-Local-reputation"
6 K1 n! F: U* N3 m( Rset-current-plot-pen "Honest service"
( k( w" z) h3 V8 m* S+ Iend ~! H+ E) b1 Y# E0 a5 U
9 d% V8 Y* J+ }: f4 f$ |% ?0 S
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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