|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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
% b% k7 F/ U$ {globals[* I% L: I! I( p9 P
xmax
3 e- J5 i& G6 k: Fymax
2 s4 h3 S6 s9 }; H- L9 y* B. xglobal-reputation-list
2 c) J1 W' h, ]! }& ^$ z7 W; n+ D6 I0 Y: }
;;每一个turtle的全局声誉都存在此LIST中- @2 k: m. {# x1 y
credibility-list
; X7 o( R3 Z; J2 O* ?+ }3 j' O;;每一个turtle的评价可信度
' J5 F, q4 d/ r8 a5 H+ thonest-service
" V) e. p) ]- y, e0 C- q4 ~) zunhonest-service9 ~8 `, e( T X
oscillation" J4 h' t# b+ u" K1 J
rand-dynamic" ^( w( T$ y" D! c, x* C) t: A
]" D- }: Q; \& L* y5 K
/ Y- w Y% U o- K/ o9 e& x
turtles-own[
3 X) s8 Z+ r1 k% W% {trade-record-all
# R7 H: b1 `7 t4 P7 B. ^2 K! p;;a list of lists,由trade-record-one组成
$ K4 `5 E: h6 s9 J$ t, g% ~trade-record-one3 P6 U; C& [! U- Z$ N! D7 W$ {; h5 C
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ s# Z. e8 i3 f# A
' j; h) m! r4 A4 S# T& f;;[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]]
" [9 v. ?& I% p6 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]& \8 y5 S" i! m+ O9 k4 D
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
6 t' s. {( ?6 g& U8 fneighbor-total
$ r" ^% T2 R) }4 \- };;记录该turtle的邻居节点的数目4 R. U1 {9 a) s' ~. ]; [
trade-time
5 i' ^+ B8 w/ N;;当前发生交易的turtle的交易时间
7 Q5 V/ n1 a) ?/ M* ]# X5 lappraise-give
- u$ f* _6 c2 m* i$ }! u;;当前发生交易时给出的评价& ~$ C$ w! F, `
appraise-receive
! C; ~% R, | J1 o; J) I" y! s;;当前发生交易时收到的评价
' |* E& O+ Z9 q/ }1 g1 x2 wappraise-time ^- O" N/ \0 A% U
;;当前发生交易时的评价时间
# }" u+ F; k; t, Dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉/ }3 ]5 |% }( V$ G
trade-times-total' F8 L! {6 @1 E3 K
;;与当前turtle的交易总次数8 m& _/ z" |6 X4 a2 x
trade-money-total* e6 [- O7 x: ?. @# a$ C
;;与当前turtle的交易总金额
0 L4 |& F3 {' Z, _; h: ~3 c dlocal-reputation4 f" e1 P% f# a8 Y3 l0 f
global-reputation I/ i6 f$ {3 l6 b/ F/ u
credibility
* G# p, @' m2 Q8 e3 D& r;;评价可信度,每次交易后都需要更新
- r: ~2 o1 ~6 X+ U8 H) n" kcredibility-all; j% r* K+ N/ b- Q1 U2 w
;;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$ S& g) _8 V" ~. S
4 S; o2 M P, W: U;;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0.52 D6 P3 K% W# N2 s6 |. p# v& Y% w( z
credibility-one6 X& x1 W; X3 I0 Y4 b/ I+ 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% S6 I. G4 D7 L' c
global-proportion/ \4 N g1 P& g" M5 }% V' ]
customer
. Q' i/ u) _, Y4 U% s5 i5 e0 }( R% n1 `customer-no
P; X! ~, B0 |, jtrust-ok. Y& ^' u1 _. G- _* m( G+ O# `
trade-record-one-len;;trade-record-one的长度
" f( F8 `" j# d( K7 ~) n]$ b9 C/ Q" D+ A
5 {" i/ U- T4 C* X" r. Q( v
;;setup procedure4 ?* m4 T+ b4 ~: {/ m+ ~
, Z' H+ `5 M- p7 y+ e( y9 ?' g& dto setup1 R6 N" C* L# X* L. y( R4 ^8 g
/ E6 H3 J3 H2 F8 o0 Sca
7 T- `* ^: W0 o- N# _4 H% `( X/ c. u( `. M ~. G& Z
initialize-settings n B. b3 X' J2 m8 G
) x4 w( A2 _" w6 H( z, Q5 `4 Vcrt people [setup-turtles]* v3 m4 n, p c3 @) C z
. E9 J5 h3 S% x2 f
reset-timer" X: b; j' C! p9 |
8 m2 F# c' K5 H) F$ F8 E
poll-class* r) B" d# p1 q( ^
1 y( r" v% J6 a0 e9 B1 P0 E
setup-plots
l, J6 Y' w* X: {' f& j+ k* S/ p7 u' j
do-plots+ T! d$ P% o6 ?3 R8 k! G
end+ r6 ]$ u" i$ K/ Q
& B8 ~# b& z% Jto initialize-settings
# I, \/ b1 \. h+ e& }' X
2 Z; x% `& I0 b/ H1 I) tset global-reputation-list []8 E5 I. Q. h# I$ i& `# U
& E- G4 n- I! Zset credibility-list n-values people [0.5]
" a* A2 S4 O) a) ` {) N" }9 Y3 X) {
set honest-service 0
* w2 f3 m1 Y5 P) H& f- j* f" c
. v8 Y- _- H4 m$ T, @set unhonest-service 0 h& O' M: B: }( p2 o
' ?7 e, C; T# C2 `
set oscillation 0
% u" q) _4 i. [% O0 ]- y3 I- c0 S$ W- j9 Y6 s% M
set rand-dynamic 0" t# h2 B9 |6 A% U. q1 S2 F
end
& z: l1 ^! W. N2 {$ r8 h3 P* h3 L8 g" y1 W
to setup-turtles
% E8 P# V) u2 ]. p; s2 ~set shape "person"
- D2 I! y+ P$ Fsetxy random-xcor random-ycor
( Q/ ]6 D7 N6 u9 o6 \set trade-record-one []3 b3 Q7 p4 l4 \% }: v8 b, N
W7 V8 k8 l, l& Dset trade-record-all n-values people [(list (? + 1) 0 0)] * ~8 p1 s# b8 [$ Z2 s/ E
, R' j- }$ F0 l9 h) F% k2 X0 \set trade-record-current []5 e7 N/ K- }. D; z
set credibility-receive []
" E6 P; `0 w+ r% Y; R# Xset local-reputation 0.5# M7 b' n+ C( u
set neighbor-total 03 V, N5 O0 M% `) N p' L* y6 s, i
set trade-times-total 0
g. _2 Y7 L" Y. Y5 ~/ P7 iset trade-money-total 0) Y+ @( D% v1 K) u+ s( W0 H5 G
set customer nobody
. p# b% d8 K/ @2 T+ _set credibility-all n-values people [creat-credibility]
' {" o8 d; V, eset credibility n-values people [-1]
5 W1 z U& Z' Dget-color
! j* R# t# b# C
' v: L! W4 g) O7 `end
2 ?/ r! |. K5 y- N# d+ B q- {: P, ^& A* \
to-report creat-credibility/ {0 v- y. m* e5 P/ [# _$ Q; J
report n-values people [0.5]
/ E" r& Z& Y; T6 T" b* Q# J* Send
! P: O% O9 H0 Q, j/ ?: C0 E2 S- Y! R( m% E$ y
to setup-plots2 n& v4 {( _& x# ~
. P1 ?- w0 H/ Y+ V. o
set xmax 30# r* F+ ^: r8 p
& k) N, i {0 ]/ q
set ymax 1.0
1 I; ?$ N$ F: M( R4 }2 n, t! ~+ V: e/ [! \; l+ f1 L7 r
clear-all-plots4 |) Q8 D1 w* v+ w! D3 R8 l
, @! Z; k3 I! K0 z4 Q
setup-plot1& r" X; I! B3 N
$ P7 j6 F, H! H6 J2 Z6 {7 Jsetup-plot2
( }- ^ b) b( w4 ?: @+ O
# B- _* k9 \5 r7 }6 h$ Lsetup-plot3
, D% r/ a1 R; l$ Wend
" F- n" f9 |% z* a# H
, M0 h2 z! C/ l;;run time procedures
2 h5 p! j7 f$ h' Z! d5 h* N6 }# s
to go8 g* b, A) u* p+ h& w, Q# m1 A
! D' G6 V3 C+ o# S. S3 Task turtles [do-business]
( H y& a/ Q7 k. P$ e( Bend
' j. L, a5 U$ D* G# V, d( T
( w1 U; S. g$ [: @- yto do-business
: y, x( D8 g1 g/ D Q$ a$ E0 d/ T$ g
" k& B5 ], I. p6 K) B/ a" i. G- V
rt random 360. U4 G* U2 {8 U: Z
9 _. F# C- ^. i) l6 @
fd 1: A* x8 t* }6 R: H- a* d
0 j0 [# o: {6 i$ f, Pifelse(other turtles-here != nobody)[$ n5 b% U5 D g
- X+ W- _1 [/ D8 O5 X* yset customer one-of other turtles-here5 l/ o" W$ `3 ?$ Y! _, n0 A
- z6 ~0 `4 y1 S( l;; set [customer] of customer myself
6 D3 g9 `# v, k
6 o! B% K9 V9 V7 o0 mset [trade-record-one] of self item (([who] of customer) - 1)2 F+ N9 b7 h' C5 V2 I
[trade-record-all]of self7 q- N; o8 V- J% E) r# n0 ]9 H( Q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self1 ?# @) M7 g. {0 L3 L
6 C2 |' l; u& t! d
set [trade-record-one] of customer item (([who] of self) - 1): i( ~2 D" H4 B- }% E9 D% T
[trade-record-all]of customer
, {. ?; n% q) W; l0 h: n2 W
* V& O; k! L5 e+ r9 L- mset [trade-record-one-len] of self length [trade-record-one] of self& [; r1 P$ ^6 |1 ~, L. v3 ^( s# N
* E5 {: Q) H2 \1 Cset trade-record-current( list (timer) (random money-upper-limit))
$ q* G- |" T: a: H6 t3 e( |! _4 e0 F$ ~3 O- V5 C
ask self [do-trust]
5 w8 W. P5 p, W- ?4 S;;先求i对j的信任度
( Q5 y* g% ?/ M+ y/ g' x
4 {/ ~/ K. C4 w2 ^1 Vif ([trust-ok] of self)
% d f B; @/ a. @* [/ e;;根据i对j的信任度来决定是否与j进行交易[# Q6 p4 j9 B; x* `! K
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself$ s9 ~/ X: D9 l
; ?0 l$ W) s1 O4 s( X
[3 Z& ?* p3 g% _8 i. |
; V. } a3 A0 k. x* [4 I
do-trade
3 [# M; K% ^% D( ~/ W' D: _$ y6 D6 m1 O X# C; k
update-credibility-ijl. s. p1 `& B# b7 o' D9 p; |3 R
3 ^, C9 e8 {+ ?
update-credibility-list7 A) ^, G! a, y# Y F
$ s; Z: }- @% y) ?! y4 t' O; E
( l8 V1 }# S9 s. N1 }update-global-reputation-list
) j# `; Z+ T2 N! v) j, Y" l. x3 u
poll-class! j4 q# c/ L% V& k* f/ J* G
e6 L u/ J8 o) T* ^/ ~
get-color; r6 I2 S, k% z+ q# o
" f! w. i) t8 {% O |- X]]
/ s m" B9 d* b7 [; S
3 i8 {6 V( V9 y$ t" h;;如果所得的信任度满足条件,则进行交易% D1 }& l7 G6 }8 M: k
: c6 b& S- E. `
[ Q) o$ z; g; Q* @) R' ?+ U8 T
3 n3 z1 p* S! D8 i* V u
rt random 360
1 j2 B% ^ G3 e e# F, F& a4 \6 B N, A* v- m) ]
fd 1
) H6 k" L+ z5 e
% p ~( V* M0 W# X+ T( {$ W]
; l/ O' ~5 ^% } @
& T7 K- e! k8 g/ o! send" @) B' y, G+ }- H5 i
; _0 o: g6 E- ^" S% C7 nto do-trust
: L" u: D+ `7 G7 s: Z+ C; X yset trust-ok False2 f$ {6 f6 O$ e* L
* [! q: v- R* o7 Y
" A9 L% z/ L8 J6 J0 |let max-trade-times 08 B$ e# A2 X% V& d# ?
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 O9 y6 T9 U( ^& Z b+ p/ v
let max-trade-money 0) o& S+ b. O; m9 X: |
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
- e/ i# c- m+ Y7 wlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))" u& O* R! h0 q u0 B7 |
! Y. X# B- Z! Z5 D2 O3 G, U/ J; A# Q5 {. A
get-global-proportion
. k% e: Y& C/ k& Z( j! Zlet trust-value
/ p z- x9 L. |& Flocal-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 E/ a# n/ _% b/ L/ J
if(trust-value > trade-trust-value)# n d8 ^, u6 d6 m9 z3 l! j9 u
[set trust-ok true]
! ~6 d l# p& K& o6 wend! O+ s" U4 W* p, S0 H
- l" R0 @# A3 w; mto get-global-proportion
# N: F0 `/ S8 Z. uifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
9 e# L( a/ [9 A4 W1 z' J: x[set global-proportion 0]
' K: E0 }; y9 {# x F9 d5 |[let i 0
/ Q# m( m5 @, w" E/ flet sum-money 0
) j3 U6 ~1 a7 e. n. p) b0 d5 dwhile[ i < people]
8 V/ `: f- W5 M% _( z8 r) B[
( M% d% D0 @, C8 V* kif( length (item i5 m+ D6 F7 ~, s& u. o# M' |
[trade-record-all] of customer) > 3 )/ l2 k7 u" `8 p$ v+ _
[9 v: t8 R1 C" l- `# S4 Y; W# J3 ]& b
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)); i; R$ y3 J' I
]
% N, O& n; _9 ?/ G]
+ N# q! _3 B7 `) ylet j 03 z; E% u9 L4 j' }3 k
let note 0
- c D# w; \! H3 E3 }while[ j < people]( g8 f q, x/ w# |4 Z
[
: t5 ?) }) Q( rif( length (item i
. { b. V, K4 S& E% a7 B+ N[trade-record-all] of customer) > 3 )
. a% |1 ^1 b+ c$ Q) s5 T[
5 q9 H7 F1 L) I0 s; Eifelse(item ([who]of myself - 1) [credibility] of turtle j != -1); ? u( s. s3 J& J
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 [7 l6 R X# | P! {2 J* H
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
% |, O# s& u4 L; Z! T8 L]3 w' d9 u) i, _
]: [; a7 E; M5 ?" q/ P' M
set global-proportion note
2 r6 d* [3 v. K]
% }, V. N: l1 G' } tend, I. h; J, Y& i
' ~; Y W ]; J' E; I2 H6 `- x% Nto do-trade
5 s* z& j3 N1 N4 R0 ];;这个过程实际上是给双方作出评价的过程" w! Y8 N( M" e1 J
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
6 E8 [" Q, g3 G4 }( mset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
& A+ [8 a! S/ o- O1 k# L! ?set trade-record-current lput(timer) trade-record-current
6 y3 \9 B# T' t) a7 {. B- ~ H, {+ o;;评价时间4 D' O2 L" @0 U3 C
ask myself [$ c8 @. K! W/ O3 f
update-local-reputation( u" [1 t( G+ @
set trade-record-current lput([local-reputation] of myself) trade-record-current8 ~( N; G2 ], E0 L( b
]
" ~+ G; h8 N6 Fset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
) _- _* v u% {0 [8 s1 V& M+ \;;将此次交易的记录加入到trade-record-one中
$ q* O2 f- x! P2 ] T$ fset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 L( G1 \+ L2 b, X4 c, Q) w: w* v$ A
let note (item 2 trade-record-current )
9 V9 _9 v2 G! f/ p, F e1 _; Yset trade-record-current
- t4 [: j$ n4 o1 b g(replace-item 2 trade-record-current (item 3 trade-record-current))' }5 M+ H P* b+ }8 ]
set trade-record-current
- ^$ ^0 T" E4 |) d+ u3 R(replace-item 3 trade-record-current note)
& h2 w4 B1 o4 f+ Y2 n2 J/ q `% m ^; Q; p5 E
. b6 X/ t/ l( c' ?6 z3 o$ rask customer [
) O( T7 u0 O5 _2 f R! X/ `6 e) eupdate-local-reputation+ H6 B9 l# _/ Q& E3 m; K
set trade-record-current) r0 a l2 \& n2 l
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
! X$ I* g$ E' x. r3 N]
9 M! a) e& n B7 ] _- q
* t3 `" V( `5 z7 H) A7 |$ f5 @1 Z% I1 O$ a; C9 V7 @6 Y1 D
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
8 d$ y( J7 U! I' L) T# Q; f& {: o* W: _. e6 o
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): Q0 s" ?% u) Q# @8 k/ [
;;将此次交易的记录加入到customer的trade-record-all中
4 m% a" E! g: K6 Send+ v H: `2 Y% d. }8 p
: E! a+ A5 ?# c1 R3 K6 O0 u
to update-local-reputation
9 A1 ^3 h1 t& {& nset [trade-record-one-len] of myself length [trade-record-one] of myself
/ E5 g- K/ m& P8 k, }8 P I" q- z6 c/ K) `
+ C3 {+ B ?2 O) ^
;;if [trade-record-one-len] of myself > 3
) g, d9 M/ ^+ r/ D: h# kupdate-neighbor-total8 M k4 O7 |' @: S, x! r% g. B' D
;;更新邻居节点的数目,在此进行 B `* T1 m* t) t
let i 3
/ q, I- v- ^* s0 D. Ylet sum-time 0
/ e% ]: q/ `( D* S7 a5 x7 f! Nwhile[i < [trade-record-one-len] of myself]- r6 S" `, k- m f- k
[
6 Q( n# H6 m4 Y+ d, ^( nset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ); W7 {# l! \6 S$ X9 D+ @& B
set i
6 r8 F( C' k6 M7 J( i + 1)! \ c6 i8 b9 x- P' K
]" g- N8 J$ o3 O. q
let j 3
0 S7 I" E$ b5 A, Y- ?8 H1 hlet sum-money 0
' z' _- x G) z7 Q. jwhile[j < [trade-record-one-len] of myself]
: {5 q+ l7 A, [' u9 ][, n3 a- O$ K. F. g) d0 \
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)
0 s6 p7 z J) V& s2 Z$ t' L% gset j
- W4 u4 E- x' i, E2 J' q/ D7 ~( j + 1)" B5 @ t! N* N, v! L
]
: ^7 V& o( q/ o0 o: Glet k 3
* T+ Z; v/ G r' plet power 0
" |3 f5 P' G2 O# ^! wlet local 0# F% f" l2 v$ O7 h9 H
while [k <[trade-record-one-len] of myself]8 t8 g. ~0 c$ W3 |: |# D
[
9 V; t2 _! |! q( R* x Q8 j4 hset 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)
. B& K) b3 ?. lset k (k + 1)
2 x; h% b3 u4 U. e]# C# m* q0 u+ f9 ]/ R# \
set [local-reputation] of myself (local)4 y' i; h- C" L
end
% R9 i. N8 M- d
6 f0 [: G5 |' j- z2 e. i3 Hto update-neighbor-total
0 R' _2 i- G( Z: q! u
( @" C6 Q2 E2 |+ k& Qif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
' r2 s: R0 x0 ^4 `% I5 x- q$ E2 _ P1 _* c2 t- \2 ~
1 X% x+ a0 f+ _$ z- Oend
8 h6 F3 ~) ?" s$ e1 v- j% \: }- y/ k3 m2 i' U9 f
to update-credibility-ijl
2 s7 k, F7 Y& P0 |: m( u. ]* u" e0 F% x1 G$ H
;;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。7 x' D( J$ |* G4 g( I% s
let l 00 L' V. ?5 T4 V) X
while[ l < people ]. _5 }9 K# u1 W9 O( U& T4 T2 F
;;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
. W& }, L$ G$ R+ t! |- j: ~# M[$ o& _/ ], ~" U6 @
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
+ O2 v7 k2 D) Q) a3 o+ {if (trade-record-one-j-l-len > 3)4 A: ?6 z: c" P! v( x* K# d
[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! K3 c+ U/ [0 Q! A! \( g
let i 3
8 x% }/ m" I2 d" [: Elet sum-time 0
8 g4 U# v: p# p5 p Dwhile[i < trade-record-one-len]
6 P; a# r$ J% S6 \. W U; I[
D! |1 ]3 W$ X, Y2 l/ Jset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 n1 M/ }1 S! ]7 {3 m6 `. C* K' x1 qset i: T' c7 E3 N, L, l
( i + 1)
& O. Q& ^" ?/ O]( R) L+ J- x5 `* I7 _; O' c1 s
let credibility-i-j-l 0
0 O2 ?: [4 h& p! d) R;;i评价(j对jl的评价)
6 K) I; {( G! K* |3 _let j 3
+ ?- k7 W# t, V! S1 r, i3 ylet k 4
& \" \: d, z5 A$ _while[j < trade-record-one-len]
2 r n7 U' @; M[* D8 S! A. y+ E3 X! H. T0 A, [5 Z! J
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 S% n3 f, b" R# e2 D( d V% x
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); H" }# }* y" Q% D
set j
1 u, ~: g! |" v+ n( j + 1)
/ _7 _# k3 o# P1 f$ l$ `8 I9 ?7 c]
4 j8 d2 ~ N% H4 B' @* Q; W3 Mset [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 ))
; L' `! a! f5 \( g0 ~, v+ ]$ x
: N0 O4 H, Y& j2 K8 m! A' ]. I
* o9 t- g H8 ?& k( j; wlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))& {1 A; \9 M6 c$ d' l. Q: U! J2 O; a
;;及时更新i对l的评价质量的评价
: ?6 ]" a& w# j8 i8 ^* lset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
8 h/ U$ p: U: n. j# Iset l (l + 1)
' o5 N$ P; f' g$ q* `# S. O]
, Y4 w& u& X/ j, g) I# {end" z6 _& V9 d8 ~9 q" z
3 b' ~$ r8 a. b4 y+ \7 {
to update-credibility-list
; Y. ?; `+ N) Wlet i 0
: i" \7 }# Q1 N, u* p/ Nwhile[i < people]& E6 u8 ]+ n0 b) z/ I
[9 o$ l* b" B4 ]* {0 T
let j 0
% L3 V$ f. m/ `6 {' Tlet note 0
0 | X! d" {1 c) Glet k 0
1 a. l% _5 Z% Z/ d: Y- x;;计作出过评价的邻居节点的数目
$ t1 O, ?! z: G& k$ Xwhile[j < people]
6 v& R: H2 Z N& H( c" }[
, C& T, z& l: p5 j& Y- ^! v2 A! {if (item j( [credibility] of turtle (i + 1)) != -1)
& b+ P% r4 O% T5 o;;判断是否给本turtle的评价质量做出过评价的节点
5 S9 @- C+ H9 e0 E/ K$ C* [* d[set note (note + item j ([credibility]of turtle (i + 1)))
; H' U, d8 S$ m s3 F;;*(exp (-(people - 2)))/(people - 2))]
- ]8 s3 {2 o* G; Zset k (k + 1)
# g- C6 Y, B( p0 @: R& t]! w4 D; q. s: U T) f# P/ \
set j (j + 1)% ^1 e1 F j$ c) Z0 v( m
]
$ @+ o8 W2 n3 Qset note (note *(exp (- (1 / k)))/ k)
8 h' Q0 f( |8 p& t8 q" n; @6 ?3 bset credibility-list (replace-item i credibility-list note)$ y8 G ?8 q. B0 W: ]3 U2 y
set i (i + 1)
. Q y" c1 A' f9 L6 v], X8 P- b* c8 S
end
: P; I6 ^' o/ a
$ E; H9 w) j% J! W; G# ?to update-global-reputation-list
/ R9 k1 U2 A2 p9 d4 Y' T/ Olet j 0. `' |- V. x2 I, _
while[j < people]) r" t5 r1 e3 ?2 W
[
6 a) }8 c- h$ y# S* W5 v; [" {; J. ylet new 0
6 `+ t# C8 \' t. g, D2 B: {) k/ ~;;暂存新的一个全局声誉9 M. Y v: e* Q d( r% s! S- P; {: g
let i 0
) j# o! p3 R @+ rlet sum-money 0
5 k* I; Z3 p) ?let credibility-money 0# N6 f6 h" l2 ^' x
while [i < people]" \+ U& T: w' r" P
[6 O: ]. t5 s e8 w& u/ c
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))- o6 `2 H, F/ n9 ?0 M+ a0 \! ]
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
/ u! E& Y# o: \1 O5 R* Nset i (i + 1)5 q: j# p: F" X z- s
]# ]: t' `4 Q* N# y# \8 g
let k 0! |5 F# \2 r! M8 l9 i! a9 _
let new1 05 R9 O! m3 R/ ^" `7 L
while [k < people]- s2 T# V% B- W' N8 g" F
[
/ O& _+ E1 |$ _. Y7 @' C6 z# |" aset 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)
, V4 {5 k0 w+ M/ Q0 V8 Aset k (k + 1)$ }" ~6 p4 ]; E" r& ~0 H. S
]
: I3 s: ?$ p& R; Yset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! D- P0 x# F& C2 Y+ U& M
set global-reputation-list (replace-item j global-reputation-list new)
, z$ w/ B8 G' e' n+ Z9 H+ H) ~set j (j + 1)
& X2 E9 f2 `+ ], I! C7 |3 C$ ~3 B]
1 P; c2 \1 G1 h$ r6 |end% c9 m7 B6 A1 x' u% D4 n5 { y
: i4 W) C, u1 \' F4 J( m8 k$ l: U# I- \6 M
) }/ |6 M/ t" ]" G- ]" k: wto get-color
4 n- j+ }3 o1 t" W& z* y- [' S$ X" f9 {1 ]% p$ R) C& Z, C
set color blue D- y5 I6 I" G2 f0 F
end3 S% x: D2 @8 V9 W% r
# c) {- e" z* _
to poll-class& k; O, H" o& X" t, k
end
/ x+ b" E5 [' y8 G# m% y- ]* _- P3 M* H3 ~5 I, T4 ^ m
to setup-plot1% G' f! S" {, k& S
% ]+ X! u5 w. u! {) ]6 Uset-current-plot "Trends-of-Local-reputation"
) C: k3 ^3 |: s/ ~" s+ ^, T- ~$ r G9 E! V @8 D _( e a
set-plot-x-range 0 xmax
7 |+ o3 `. c6 \( p% I! V2 k8 Y$ y) p2 n0 i" N
set-plot-y-range 0.0 ymax4 _+ e& W5 ]/ V& \1 ?) U) H& ]
end
5 l" p2 {# o1 V2 c, h$ r( N* l- z$ T7 Q+ m& B5 `' }
to setup-plot20 S" r! d# D0 F# [( c, U
o0 f% c- w, Q( {1 k' T& I
set-current-plot "Trends-of-global-reputation"! U0 M7 S% }7 D* v
6 [8 P) d [7 B. q4 E2 _2 u; t B: z
set-plot-x-range 0 xmax9 D3 ^* o9 u. \) v% l/ [3 I
9 ?# r- Z/ D4 m* Qset-plot-y-range 0.0 ymax: N; o) _ o5 [) a# `% }
end
8 \ F Y+ Z1 s- b+ Y$ @& v& G1 k" E
to setup-plot3
- m# d+ H. g* ?5 Z" k
' j( X# }( X/ V& b; Y8 Zset-current-plot "Trends-of-credibility"
& o, { o4 P& b% y" M7 _- i
1 b. o& ]0 U' v6 Rset-plot-x-range 0 xmax
, J. s! \5 f# ]* W. e! Y
$ s7 [( u! E a! h7 yset-plot-y-range 0.0 ymax
7 k5 j4 Z9 M$ M+ A9 m3 r$ yend
1 o* b+ ~0 u! \! d$ K
$ M, T% R$ z' p2 p" u6 ]to do-plots
- }+ w5 ~# Y) N2 r4 ?1 yset-current-plot "Trends-of-Local-reputation"! g2 f3 X+ y& ]' P8 c
set-current-plot-pen "Honest service"
; f! L6 U, w, p' P4 t+ x0 nend
& H& F$ L; x! n h4 B Q3 ^7 W% M
) Z$ V! u0 q9 i: a3 W: Y ^[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|