|
|

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
; b4 i* m; `, O& _3 xglobals[
9 }* S5 V L$ Q! F! u' j0 exmax0 m; R# j% h9 p( I% ]5 ~
ymax
* D8 L9 e7 G) [$ V% S' bglobal-reputation-list
, `% o; W/ t+ x8 {% L
4 [/ X' K$ U- u3 r;;每一个turtle的全局声誉都存在此LIST中
8 e5 f. ~6 ^, W; L8 L+ Dcredibility-list
% m2 o% H" ^- F* r% d" h;;每一个turtle的评价可信度! ]. c% A) }" r' K1 \3 H" c. b6 e
honest-service
: N* J" \# Y; t6 A& F4 junhonest-service/ I+ N& z% F0 X
oscillation$ R9 z; m8 D, |8 z* ?- t; e
rand-dynamic
# f2 C/ o2 O, W+ G/ N- X6 X]
6 X* K6 o0 z$ Y2 J) W# N4 ]! I. K6 y) V' c B% o
turtles-own[
; g. }- t3 `! N" @0 t- D) h$ ztrade-record-all
7 b. V& I) X" b0 x" O;;a list of lists,由trade-record-one组成8 Y, A3 p/ {1 O, E" {
trade-record-one' q+ t* ?7 p9 Y
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
7 N6 s h4 H! h. i ?" e! K
, M0 Y! x7 j' P, ?7 M+ ~- L2 A;;[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]], Y% R7 l! A T* p" B6 w
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]8 L1 U6 `: S8 X% [: A7 H( s
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list2 f% n) i/ x' g ?' U
neighbor-total
& [: N$ Z( N( }; h: ]- o7 e;;记录该turtle的邻居节点的数目2 C- w% p/ X3 ?) ^* v& R% E
trade-time
. i; I( j ]8 {1 ], U; r;;当前发生交易的turtle的交易时间' m o$ v6 B. a
appraise-give
# W# _! f. h" Q& C& l" H8 W;;当前发生交易时给出的评价5 \& H( T! H" C
appraise-receive
8 i3 ] o2 r1 Q! D3 \( x;;当前发生交易时收到的评价& `& S0 M. Q2 G, |% N% ?
appraise-time
8 L/ v- `- o4 U; o;;当前发生交易时的评价时间; J8 L2 [% Y' H( `" p1 F% H
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
2 X% U8 W9 H) s. Btrade-times-total9 L9 U7 A# U& I6 s
;;与当前turtle的交易总次数& y% w8 Z4 u1 p; p% R5 [4 Z
trade-money-total# U- X! ]: ]3 J( n
;;与当前turtle的交易总金额
' g4 N* R9 {* P+ ~# j8 o9 |: qlocal-reputation
8 A+ b- _3 i% C! }$ @4 \; F1 Vglobal-reputation5 o0 c7 u% B6 R8 I+ k- K
credibility* [* ?; \9 O8 z
;;评价可信度,每次交易后都需要更新. B7 o- F, E: g6 X) E; o
credibility-all
8 z G* e. L. A, ^;;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
4 n2 s/ A! D0 Q o
7 ^. d9 Z* s3 k0 Z: r6 Y- B;;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* L6 w7 t3 x& e) i: R# |
credibility-one9 c: a0 l* y8 C. `; ]
;;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
+ t7 _4 S# ~8 m7 z0 I; zglobal-proportion
- M0 I' C; ]8 h; E7 G8 ~; n& W7 b( icustomer j+ k6 n+ z* m# t x6 d, E* e; g0 z
customer-no" q @, b7 A4 o7 U4 M
trust-ok2 C/ ~9 a# r. f/ x
trade-record-one-len;;trade-record-one的长度( V9 @# r% |/ V$ q1 d% g% r
]
$ J( t2 S+ Y: F0 S1 q0 _
3 a t+ W7 O2 C4 [( G;;setup procedure+ F( l. i0 Z9 \$ u- ?! Y# \7 @
6 P W, ` n3 w9 m% b# g$ h8 Lto setup" H8 q8 q, s0 j
2 B0 S4 l3 K: lca0 } E; o6 O$ P& |+ }0 e/ i+ m' j1 Y
0 ^% s: W5 d. Pinitialize-settings
3 s9 \; t3 \" U8 {9 F/ [0 m/ ?
/ D% J; s6 T- e. c' u# n2 {% Dcrt people [setup-turtles]+ x4 K9 G( i* S2 _
$ F! X, a2 e W# k* o' N
reset-timer9 g- `9 G$ |( B/ X, R6 n
8 \* h! x6 F( Z3 n3 x4 h8 fpoll-class" a, [6 V# d$ q
E( _( i5 Y3 ]
setup-plots- D4 n6 \+ p2 [: I% ?1 |0 @$ ?
$ W- o% ~* m, J+ u) D* [% mdo-plots, Y% w7 T. r) R4 ^. X9 i
end
+ r8 J* y' }7 C( T+ e6 u) V. _ F; _7 P/ G* l) V! W$ _6 f# X3 P" m
to initialize-settings
8 d e( ]' P$ [9 n6 s+ I" l
. o& x5 C) L" V* k' u- a1 W8 S& w; Jset global-reputation-list []
5 F6 b( @5 X6 _) @' p, m) m
$ v& A' I0 [- _# J5 tset credibility-list n-values people [0.5]
2 [9 {, t; z/ U% m" t4 [
( J/ s' B$ d8 V8 xset honest-service 06 s, p+ ]8 _7 @% Y+ g% _
4 l' K- Z1 Y8 V( D7 q5 t9 r
set unhonest-service 0
$ _& i$ ]+ G" i/ ~3 \
- U' c& W4 o) E) H: ~set oscillation 00 ?4 k; X- u2 i+ l8 `, S- K0 Z& d
7 x" P) q3 L8 k, ?
set rand-dynamic 0
' H' o: D4 n% B7 Z( X6 ]& G; T# Y+ Tend3 Q! l7 _8 C) X3 e9 s* ^: \. o
+ A, O( y( Q1 h! `$ o4 \to setup-turtles
1 {- @; e" Q- n+ x+ O$ Aset shape "person"
7 ^! U: c% r0 \) `5 Q- {7 [setxy random-xcor random-ycor
% {2 D3 m5 T' ]/ ?set trade-record-one []
# E; o% i& E/ p) u0 ?4 _! l4 ?) a( i6 ~$ w- p; [/ T3 s& } H
set trade-record-all n-values people [(list (? + 1) 0 0)] / n* h6 a+ J" j8 a) F
1 [) t2 V& U: _( J; A1 q! Sset trade-record-current []
$ D$ L- M. x2 Y3 B% n8 h4 Uset credibility-receive []
9 |& n* g! ~) [7 H% L {3 Xset local-reputation 0.5
2 O* s) @* f/ A$ pset neighbor-total 0
4 d4 C' T8 y0 o" M, xset trade-times-total 0
4 `5 T2 ]5 A8 eset trade-money-total 0% ^7 s) x8 D2 g) i, |1 t
set customer nobody; k, o5 [: t# {4 s, s
set credibility-all n-values people [creat-credibility]
" I- c& d9 P( h4 uset credibility n-values people [-1]1 k, k1 B- I r' S" n4 C: @( `: I, y: i
get-color
7 o/ e& D+ X, u; Q) J3 v( D$ }" H
* z% A+ H/ k1 f1 [ b7 k/ hend
! b2 k2 a" C% w' W
7 b/ `! s/ z. A( m6 Eto-report creat-credibility4 F O! F/ L/ e' J) V
report n-values people [0.5]5 s" J# E( h* U8 u J9 t% e
end
% o4 i: g9 f2 \
* d) j. p) V7 ]- y& {# B* W, Xto setup-plots
* j8 f& u+ r b5 @1 V2 R) Y8 l$ x( j: X1 U
set xmax 30
3 c+ A; z' X w% P& `; h/ D: q3 S. M; U% b2 d
set ymax 1.0
5 ^. |4 Y" C6 v2 n W5 M7 p. [, e
clear-all-plots0 a0 V! O9 ^1 T/ E+ f6 A
# O7 |$ N% m' c; ~* N" S- rsetup-plot1
2 ~% m7 v$ W$ R" d7 U" I+ P2 u' p) g( W. F
setup-plot2; W9 f1 B& w7 `. d8 T. Y
; s7 i7 v" _. l1 f$ S' z8 Osetup-plot3$ l) R; q, q3 R
end1 x- T; t# x5 \6 e9 f6 D
* A6 T' t% R/ C- K0 k% s;;run time procedures
) b: X L8 r' x2 v8 b3 m
" O$ I/ |+ N4 S. Y0 t) O9 dto go
) y% f! k+ ?+ ]: T7 [& K! o7 @# p% Q3 a
ask turtles [do-business]
2 f1 w/ I2 g9 i. `6 i* f4 Aend
m2 c2 c8 X5 x& g( P% _
: {1 W; O1 a5 q7 r5 nto do-business
) O/ W" _( \7 H. P1 R9 }# ~
3 Q1 \6 @5 |& s3 ~3 M7 r
. o" ~& C( | s! m" Lrt random 3603 f# E, p o. }, s
: u4 i% X( C2 ?! ]+ W' g9 V
fd 1
# ^3 ^2 q6 }2 } Z1 z+ v7 j- _+ R, E
ifelse(other turtles-here != nobody)[
- h+ n( y0 E2 w3 W/ M
% q$ Q5 Z4 M/ B% v& j6 Dset customer one-of other turtles-here; g3 ?3 l+ ~. M [9 L! N
+ N% C0 G% O8 q3 O! G
;; set [customer] of customer myself
1 P. t1 Y6 N7 G- P
7 v; H, g5 m3 E, x! ^set [trade-record-one] of self item (([who] of customer) - 1); A* D# N j! R" i* G
[trade-record-all]of self
& N9 J2 w! n$ T2 M( c3 j8 c) I& U;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
& A& C+ c) B" S
4 Q9 L, H& e$ C/ w9 Aset [trade-record-one] of customer item (([who] of self) - 1)
3 k5 Q$ e9 _# W$ e- {[trade-record-all]of customer* t6 ?: S9 ]9 p. Q1 Y( v! b5 M+ }
0 z! `( v3 q+ P2 Yset [trade-record-one-len] of self length [trade-record-one] of self
) r5 E( p* q7 S: a0 Y) v
! B) [2 Z4 {$ ?' ` U# M5 qset trade-record-current( list (timer) (random money-upper-limit))' Y v1 ^$ y0 ]
# W/ t# H0 i' c/ [6 K; t+ z
ask self [do-trust]
: L8 w$ D, [3 B' a;;先求i对j的信任度- H' s6 E9 m2 {
7 B, N' G4 c" L7 Kif ([trust-ok] of self)
4 L7 w. B5 X0 q L, J8 X9 e$ L;;根据i对j的信任度来决定是否与j进行交易[1 K7 N1 h; Q& X
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself# \, o6 Q3 I( t' ]8 |# K* o
4 Z; q6 v' x: O1 Y' `[
, @5 u( N6 G$ x
. ?. j7 A' N- E# t1 Q# K2 y3 Z5 ddo-trade
7 u4 x2 \0 \# p9 D: V, I' ?/ R! |
) _- S& {* Z& x0 C% q, a6 @( hupdate-credibility-ijl6 A: e3 t; v* X1 l7 B
0 Z2 A0 U$ G8 Y; O+ o
update-credibility-list
/ f. H5 k4 j# N5 F, c% Q
% \4 u& z& o: Y
. ~1 k, [4 A5 F4 [8 H* o" jupdate-global-reputation-list
* R! P% u" W% P" M+ |' @! ~& j& M$ d* l/ K' ~
poll-class7 S$ U7 L) Z9 `* O. C
- O( p' _( c; f9 e* m4 e. Q2 ~ g8 F( r
get-color
& s8 S* ]% X2 w% }8 G" p- z% H- q+ _8 k0 _
]]
% l' O1 w& w8 V" f, f* d& F' ^, g8 u
;;如果所得的信任度满足条件,则进行交易% o6 i7 Y5 Z1 u f1 y" h
0 s& y5 X) F' O: n: L# E
[5 l7 s) l+ H- B" y2 @% R* ~
/ \1 K" O7 o9 R e: E5 E( {
rt random 360 N$ b7 R) R/ F
- }( B) k r( ?/ nfd 1
8 r1 d/ s8 w6 Q2 ?1 f3 l4 b
7 i+ v$ @' Z6 c' R& a/ _ ?]2 J3 _5 c! {$ L4 F
) W+ u% @$ }. y' m, ~4 _
end. f$ X1 Z) K* L) l: q* X ~
& a. u7 d5 y1 m* L
to do-trust " X- ]! N: C; H% F; i+ E/ P4 k8 i- X8 e
set trust-ok False5 l: C$ Q2 ]% ]. c( m' z( ]
& p2 b# D/ x {9 D: d: K6 V2 [, |% i* F5 T: E! l
let max-trade-times 0+ e2 { `# {4 z
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 \; y+ k% V4 v
let max-trade-money 0
& P. t7 v Q9 ^4 K# w/ b2 G; |foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) T& B- B6 \8 Z# V8 o2 v8 S9 Y
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)): t: y8 b( O1 i/ ?) t3 W
% b# B: L) X) l! C- J
4 t1 z$ ~. D0 n; }9 s7 D# B7 V: A3 eget-global-proportion
3 Q0 V6 A0 [: c& q Elet trust-value
( ~- I9 }& p' B9 p! d4 ^$ `) P" T! u: ` R' Hlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)- R& f* M: o* p
if(trust-value > trade-trust-value); T# T4 _! }9 i, j( L/ ^; M
[set trust-ok true]
9 K! Y) i8 R0 C4 b2 p% z9 Zend
y: z' m# p+ d
+ G" N& S, R+ c* H& ~* @( e: Ato get-global-proportion6 T: M' _3 \2 I% _0 l
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 }' u) l1 W# v
[set global-proportion 0]" w4 a, m+ P! H$ f c) w
[let i 0; J! x8 P% \. \! j6 p
let sum-money 0( \! v3 P+ A; \4 X9 r% u8 P
while[ i < people]# j% Q* W5 Q Z
[
1 O% d3 _! l% K! _" w( r8 r5 q/ d; ?7 Fif( length (item i4 f0 L& M8 K5 s- B& V7 V
[trade-record-all] of customer) > 3 )
+ H' x7 b: a' e0 `[
b! u! Z& R7 L- p J4 bset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
; P' J9 P, z( F; [% n3 U- O$ E. x( N]
" R, e4 E! ^; V]
$ y; \# e8 |( Z4 `: M r7 Glet j 0
3 I) U7 x, S* |) G: zlet note 0: o, K0 ]! ^ y2 `
while[ j < people]. I( K# J) @$ T- i1 [: h. d- }
[- r1 j2 o) C/ V6 j
if( length (item i/ A, i# G, T4 H3 R
[trade-record-all] of customer) > 3 )5 `4 u; T8 l& y
[
0 M2 V" q+ C0 Y' Cifelse(item ([who]of myself - 1) [credibility] of turtle j != -1); Y/ j/ x+ a" W0 f
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
9 @, Y4 C: q1 Z$ Z7 M) V' [[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
3 q1 E8 O4 ]- d: D7 e' A; L]
) e' [5 K3 K' }1 H: `% m" ^* W6 q]
+ \* R% R$ `% u# kset global-proportion note) {. z% A2 V6 t8 R$ J
]
4 _* Y* U+ m6 `4 G! e. S6 b) T9 o% Dend. Q" Q7 n3 R8 G
2 k2 I( U# H% c) T; b& P1 Ato do-trade
7 C4 a, T. M" d/ R! x;;这个过程实际上是给双方作出评价的过程
% U- T0 J+ N& y/ @0 X8 y- Eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
+ y! P" y+ L: z# `$ yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价8 r; B9 n. V3 C) F
set trade-record-current lput(timer) trade-record-current
. E4 M& Q/ I) r. |5 u;;评价时间
9 d8 q4 r/ h( w4 T% Z9 o- v, hask myself [7 I/ J" C. w; ?
update-local-reputation$ ?. q2 [, \7 [8 R* q
set trade-record-current lput([local-reputation] of myself) trade-record-current3 a, p9 k9 _' I4 t3 \( \7 i
]) z4 z l& j3 S. o
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
4 D T! | E/ g& a;;将此次交易的记录加入到trade-record-one中
( O( ?% a$ p& I. Z3 Wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 i6 h G0 U5 x9 P; L
let note (item 2 trade-record-current )& N7 w' i: B' \: c& T
set trade-record-current# J- u: f+ N) T5 ~8 }
(replace-item 2 trade-record-current (item 3 trade-record-current))
$ C- q9 }( v+ z) f0 o8 Zset trade-record-current2 X( ~ y9 G7 q% n, J3 M1 r& w
(replace-item 3 trade-record-current note)
4 l: |- _2 v1 T( @6 q
$ E, j$ S, t( K1 [1 d+ |0 B: e1 e( o) R2 S! |' N+ h; Q
ask customer [
@* I4 f; u. k2 \- `/ S7 m. supdate-local-reputation
# ^1 @2 c& l, d5 m$ w" \" Aset trade-record-current+ v3 Z) y* g; [
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
& D+ G0 {4 a- X% L, k; ]* s]0 V4 q6 Z& p5 [6 g+ |. G5 q
4 P6 x8 d1 e2 g( G0 Y* o% c; c+ a5 a* g3 M, C5 r9 A) D
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
" b6 g; X S5 t8 _6 ^* z9 [& s0 I/ f# d/ ?; x/ Y6 w* r1 P
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
w" H8 M% t) E3 C8 k;;将此次交易的记录加入到customer的trade-record-all中
9 s% Z2 |8 Q- J4 O' oend
0 X3 V7 t. G6 j* J+ }' Z* `; G3 p: N) K) Z4 x7 r
to update-local-reputation2 Q3 d% F+ ^1 b, P& ~; K. O" q
set [trade-record-one-len] of myself length [trade-record-one] of myself
5 r- {5 }8 R8 }0 T6 S" s4 f5 n ]1 {4 l& j- x
* Y' Q; L9 M* ]# f2 Q* p" T
;;if [trade-record-one-len] of myself > 3
+ A; c: h- r2 P' R4 `' Y4 Tupdate-neighbor-total: ^1 \ v6 x/ X0 O% l+ ?* m
;;更新邻居节点的数目,在此进行4 n$ [8 V7 p1 J
let i 3
$ P) B$ v8 j0 R q4 ?. y, Q+ Qlet sum-time 0; m4 m& l& G- k* K# |
while[i < [trade-record-one-len] of myself]9 a: @& o$ A$ I3 T1 |
[$ Q2 J8 l1 K9 ^1 m$ `1 W% S
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )7 Q: T+ z2 A$ L- E
set i, |1 Z4 A; d+ i
( i + 1)
* H+ ^- q& V+ o8 R4 \]
2 b" F, n; W2 u/ D6 P9 {) t/ U m: z Nlet j 3: _ ]+ _) q( Q+ l, L3 `
let sum-money 0! ^% x$ N; A7 g7 D* {
while[j < [trade-record-one-len] of myself]1 C$ _2 q8 i" Z3 V! |+ o" Z8 S
[/ @, b/ R" E0 L" T! m
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)6 R6 C% ^0 z& A0 {" B2 j
set j, r' {$ ?, @& O4 F3 l3 v6 ^
( j + 1)
! E2 W" Z, X- a8 M' L# w; A2 y]
( B4 e# Y0 N% G8 o4 T {' }let k 3
# S8 v) Y+ x Y' ~3 _ L- ^let power 0
7 Z! y, L8 {, nlet local 0! X( C' D0 e" A9 n" k% R6 h
while [k <[trade-record-one-len] of myself]
6 H4 m- a, r8 @3 M$ Q+ S[' p+ s& \0 @: E: G6 L( ?
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)
! d0 C0 A" R7 u- Z" Tset k (k + 1)0 O7 y7 k) a9 x c9 K
]
3 d' o# s/ O3 D" R, Oset [local-reputation] of myself (local)
) [0 x1 M. j4 c9 y6 \' k$ u1 n% _end
4 D1 O& f; d9 r2 `7 }6 J# i
8 s y6 s3 G, ^" S$ q. g/ rto update-neighbor-total
8 ]7 x( B/ I' p$ B
& W& `( e4 H8 `& X/ T) A- Nif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]( ?$ _9 @% R4 J# y3 _
! r& K: H8 ?8 l6 ~: C; F o
2 V4 u0 i4 n8 a& j& j, d
end. k/ v( b0 p) r+ G
2 c3 w1 J1 [" X8 Z" V$ ]to update-credibility-ijl ; ?& `* h( p& J1 p8 y( ]0 }
$ E) X- H$ e0 {) L1 x; F1 Q;;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。' i- K3 M2 F8 ^
let l 0
0 a9 d- k4 g C0 Awhile[ l < people ]
7 V% }# E+ ~5 b" c8 r; d;;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
2 C0 q. Z( r4 [" }) s: ^- h& T2 {[2 t' i* J+ B N' j. C% l
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 x6 z) |" X( k I" n7 R) m
if (trade-record-one-j-l-len > 3)# P( b2 e; Q5 Z" V
[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-one7 ]" ^) I" i/ F. B/ M' G5 q
let i 3
9 v. M# M5 X6 W5 `, L/ m( Elet sum-time 0* _( L3 y& y! Z; n' j
while[i < trade-record-one-len]/ a2 I# s3 D% f" t2 ^( I& t4 ]! ]/ S
[) F) Z, B( }: I, l6 J! a
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
5 }. t, P$ o$ k+ L2 H: B" ~set i, ]9 i, L: s7 m) D. ?
( i + 1)& T3 k" \8 \5 z: b( ^3 ?
]
# s4 t8 \4 N+ k$ U( F1 Rlet credibility-i-j-l 0- r3 o& o6 J; b* O4 k- t1 M
;;i评价(j对jl的评价)9 k& D$ x; l* M9 h
let j 3
% }* D3 ^2 ~; q; x3 [5 Flet k 44 A- e" K" J9 U& t! u9 w5 u
while[j < trade-record-one-len]
- ~) A$ b; g& O# o! ?2 Q" Y[8 _: ]) d% p1 n/ t% f
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" f1 n p& j0 j, C7 h, x/ u
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)
, c$ \% H9 W' U/ ?0 F8 L) A x9 L- uset j
- V) E( I4 \ l( j + 1)
0 O+ _ ~$ w3 i* y# {! P( t- t]
5 n& r1 X8 F, u( p6 R' iset [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 ))( @ \& e/ j1 K+ f' ~
* M* S& p1 b f* V6 S
$ x0 n* w$ h0 n: G$ p9 L
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
' |, v0 w3 ~6 [5 Q;;及时更新i对l的评价质量的评价0 e: Y) r3 T5 Y) [+ v
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]( o& ? O4 B3 L
set l (l + 1)
% V4 u O% [' o) ?4 ?4 X]7 e: \# R: p$ l2 f" e& x
end
! e; U* T) ~# A) [$ L- P$ p
& U* h& s A9 M$ ~ H* X8 T7 O! rto update-credibility-list% W% c) _6 h7 P) ?
let i 0- Q0 |5 c7 {% R7 a4 G
while[i < people]& n0 Y9 Q+ V) d1 l) G2 f6 W
[0 @; U' k1 F4 Y7 h: E( L5 ~
let j 04 Y) ]1 g0 v, \) W; }
let note 0$ m( b1 C$ r$ S0 z" d
let k 0- {; S- j6 M; P& S# A, y/ l; }1 s
;;计作出过评价的邻居节点的数目( s3 ], ~2 i, i! H A' ?( f
while[j < people]
- b4 v/ l3 D. Z4 I0 R# Y9 H[
0 i# b- O2 S7 x; w# Jif (item j( [credibility] of turtle (i + 1)) != -1)+ U; ~% Q; d- X, m; a
;;判断是否给本turtle的评价质量做出过评价的节点 R( k# l" A. k) M2 r& `
[set note (note + item j ([credibility]of turtle (i + 1)))% Y2 `( u5 L7 i# _, A
;;*(exp (-(people - 2)))/(people - 2))]4 f" {0 B D- a" J- t5 w
set k (k + 1)0 M+ f$ i- Q; {* P
]0 K: |: L- K, N9 G; J) f2 W
set j (j + 1)
9 W7 d$ ?2 C. c0 l! N]" O, N" K4 i/ Y |) L3 D" N1 i
set note (note *(exp (- (1 / k)))/ k)
, _- z0 F1 M3 q4 {$ _$ Bset credibility-list (replace-item i credibility-list note)
! I2 b5 w& X( B) z/ Y iset i (i + 1)9 T0 ?% D S5 x+ y
]
2 B4 A' O% z+ c) W. l2 fend" i7 Z0 m0 ~- q) ~% k( t: X
2 C( w- D- \$ e8 y* w5 m# ?7 Oto update-global-reputation-list8 y/ _3 y) i" T( T5 a5 w5 E
let j 0
+ w# O6 C' G; ]/ x3 w6 y* zwhile[j < people]& ?/ j j7 J# \7 y9 Z
[ E" Q8 ?1 P& f* I
let new 0
! Q. N2 E) k# d6 P0 N/ h5 I;;暂存新的一个全局声誉
* H6 H7 n* z; X0 x1 g2 ]& ?- s% @let i 0+ t1 N* h) C" w/ i( D" ~. l
let sum-money 0
9 h; K" p1 t6 w: Plet credibility-money 0" O: ~ a, ^" Z- O' ]3 b
while [i < people], h8 i2 O$ l" g: n* H0 U
[6 I! w9 j# c5 L* g- r
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
g* L B: f2 t& E u' }9 x! aset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 J* O2 u( c5 O1 Aset i (i + 1)" ^1 a1 I) x) g/ O( U+ I# T ^
]
9 e$ O) D/ H: K$ H! blet k 0
2 q9 g4 h% e5 `' vlet new1 0
; z, P# p- L, S9 r0 _3 m: [while [k < people]
3 w9 h" s, u9 x0 b% z! e2 Q& |5 D[! k4 K" B: L) M2 A
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)8 P7 K% F4 M$ u: r" m
set k (k + 1)& a' D4 t# ]; @7 ^1 a$ V
], e4 E% L6 G I& m& R1 g9 i/ R
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 2 Q2 _4 P! y0 @+ |6 _5 a! h9 k0 e
set global-reputation-list (replace-item j global-reputation-list new) {( J3 W: n7 y
set j (j + 1)! L* P9 H+ C \8 r
]
1 {6 A+ H9 h( i. u7 Y$ bend! j. |# r1 _, V$ s) `1 H9 w
& l: n i4 P0 T8 t
1 U- E1 s" B( `
) ^# [9 k3 p0 J9 P4 W7 U; X ~to get-color
+ l" u" Y2 U2 g1 W. h/ [% b
; K2 y1 G% Y5 ~- aset color blue
r3 C; H/ W: R8 V+ b6 tend
/ r, k0 B3 ?- S$ e; P2 x
% c" r) U% D p, kto poll-class* t! ?0 U0 K7 @& F7 _
end
, U" L$ k( M7 P" c& \# t
1 X- ~- \" r. C( j/ Yto setup-plot1: u3 n2 J/ h* F2 U T2 M" y! a
& b& y- e+ C& I7 u, o! D3 ?* eset-current-plot "Trends-of-Local-reputation"+ D: g8 z$ [$ E3 w2 K
4 v3 E% j* N& E9 W& v: ?set-plot-x-range 0 xmax6 E& x& ^ E" O( _! Q; @& c
- p. T6 z$ }9 J/ e# }set-plot-y-range 0.0 ymax, V t8 R: I6 m" D' ^( ^% j) v% M
end
! Y' ?* c+ }. m j% @. R) |/ ^1 a) O. p. u( |3 J
to setup-plot2
6 d( l, M) f' c) v& S; {2 k, R H
" V" s& Q% c; c7 ~* P4 W; pset-current-plot "Trends-of-global-reputation"5 p! P4 |4 t2 t, r1 F( I9 d0 j: f
% K( K1 R$ @, U8 W8 p8 }3 c) gset-plot-x-range 0 xmax
9 t( |1 u5 C' T% j, n, e8 u6 m! p# S: R% V' V9 ?0 [3 J
set-plot-y-range 0.0 ymax
4 i ?; j. W5 [( `end
* s+ t: }: e+ R) @, `# L" K: ^3 \ u0 t5 w: {2 U& C& {, W
to setup-plot3
1 N1 J! V- i" G1 f: A
6 |& K' ]) N: |1 P W) u6 Gset-current-plot "Trends-of-credibility"2 N" D; [* i# t# B
. w% f5 I: a0 X! ~
set-plot-x-range 0 xmax$ O1 b7 r* {# ?7 w
`0 X2 [3 X1 g. T! {1 g
set-plot-y-range 0.0 ymax& v& T& j v! n, F) k
end9 Q3 K- U7 X) j; h1 M8 D( q
8 G/ [, Y% c7 [! x* u3 D% Z5 ?to do-plots* p) c4 b4 `/ N _) Z$ _1 D
set-current-plot "Trends-of-Local-reputation"' I& j L" `8 T* k6 J; W
set-current-plot-pen "Honest service"" g: Y6 n: {! s, J2 I$ i/ A
end
& P* ^1 g# M0 l5 f4 R# m' [5 z! ^ G
[ 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
|