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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( a/ H6 H" P7 {3 u
globals[
, ^. ]4 u1 |) ^xmax$ a4 g# D8 |# h* H& a2 B
ymax
; {" _ i/ g* `' S# g# dglobal-reputation-list: p& \- r: |8 n, d$ b. a! T5 v" A
8 F; k7 S2 _9 @+ ?
;;每一个turtle的全局声誉都存在此LIST中
( r( c# g, p- ^) O* a5 b. R- F% J' @credibility-list
& }9 u. J! b( ?# j: D;;每一个turtle的评价可信度& S$ e( w& Y8 w5 d; P$ Y7 f
honest-service
2 q3 Q; T8 w5 K% N% ^unhonest-service) |1 j# G. e# q/ B; l) d* \
oscillation9 d# w2 W+ a+ z1 _3 O
rand-dynamic7 o, R3 @$ U9 z7 B5 H1 N
]; _+ M s5 y, J3 A' F
6 Y1 r! M5 c9 [, Y S+ r
turtles-own[
1 v6 Y3 w$ `' P M% r2 [1 ntrade-record-all
8 E m) s3 V3 x. w" ?8 d5 @;;a list of lists,由trade-record-one组成# y/ {/ m9 Y: P
trade-record-one6 N5 H, N' B/ e4 z1 `$ z
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录/ d5 \5 ~" ]8 J! o9 J8 q
9 B; L4 F. b3 x- l9 t* ]& _) v;;[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]]
/ {" H9 [# |4 a# xtrade-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]
# [+ l* ]/ n& H! T8 B, qcredibility-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% \- l$ E, d2 L( b( t$ f
neighbor-total
+ [4 M, Q v& V F0 Q( C;;记录该turtle的邻居节点的数目( u& J7 Q* E) C0 D4 D- S2 K( g1 d
trade-time
. \1 p1 x$ ]. m# r8 m& b;;当前发生交易的turtle的交易时间
9 h: c- ]0 ~9 Qappraise-give
( G/ |1 ~ s+ J3 ?$ F;;当前发生交易时给出的评价
. q3 o9 k* z) E9 v8 P+ ]: ]appraise-receive" [# g5 j+ j, i+ J) B) ?; u
;;当前发生交易时收到的评价' h W1 @9 M: p! L% Z# {$ {
appraise-time
) V ~1 I3 Z) g! @6 `;;当前发生交易时的评价时间) w1 v$ j+ n. Z! e
local-reputation-now;;此次交易后相对于对方turtle的局部声誉' h# ?4 S( s4 y3 [
trade-times-total/ C7 e: K) q9 d9 U
;;与当前turtle的交易总次数0 f3 u: a! L% ~/ s
trade-money-total
1 s" x o' T* E+ L; n+ K;;与当前turtle的交易总金额0 O9 }" u: x! B- Q. I5 m
local-reputation
& ?/ }: X v$ o; aglobal-reputation, M& A l7 h( N' c ]( O0 O
credibility- Z8 A) l2 s2 r; Z4 T
;;评价可信度,每次交易后都需要更新( F. v* K: O1 y
credibility-all& f$ Q1 _; P4 _/ }
;;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" m, J" `, \! o3 c- P( z" L
9 }! Q0 |4 V% ~4 ~) v R. V
;;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0.50 K6 T, l2 x( l- M4 R5 H
credibility-one6 e( E( T1 F& P4 A: [" m0 g$ U
;;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
' v2 W& ~% b* Y. c4 U; e$ `" sglobal-proportion* a, S6 {1 _8 T: a: V6 M' M9 i$ `
customer0 y; |! V2 n& @) o Z- e' j4 Q
customer-no3 ~, f/ b# Y4 m
trust-ok& A' {2 z4 R3 b/ n( h
trade-record-one-len;;trade-record-one的长度
! s4 ?- r, b+ u& e( G% []' S5 H; |- T" ]1 R3 |- D4 p" ^
/ J. L/ |' a- S% D# n2 c7 Q- f; D
;;setup procedure
1 j+ Z5 _: }& a- U% O3 q0 M+ p# l h K$ H4 O! i
to setup: f# R% b/ S; Q) e' }; `' |
% y) i* i. s d1 }1 Z6 d4 F
ca
. `+ ~# T, J! ]
+ n$ W ]2 t7 {! dinitialize-settings
8 C: m) g: C. J6 ?/ P# Q( Y; I% @, r6 `$ Q0 ]4 N/ L- X
crt people [setup-turtles]
6 k- g" f6 c+ B' N. p% x' |# p
: S6 B: x) y$ ^reset-timer2 W* W; {" Y e/ h9 s
& A7 p3 T( q$ w. O5 o; Ppoll-class
) f' o" N: }/ K4 u" D. ]. {& G U# O. F' P
setup-plots. f7 a) X9 N$ }* L9 ]
* Y; `: l. [0 }9 s$ |: Q: A( jdo-plots
' C& P7 B; T; Z( O) y! Mend4 X1 i) t6 w0 q) W* _5 f$ p
6 r o n. a# Z% u4 zto initialize-settings2 H/ f% J. L( D# x6 [4 u5 W3 T
1 H6 T3 D! K- y7 lset global-reputation-list []
" \$ ?6 r0 F8 ]- F. k6 F7 x
X& w$ r+ g+ P8 i2 ^0 _- g* W+ p( hset credibility-list n-values people [0.5]) R9 k- h4 M, l, U% B
! H% k6 h( n% y; o0 Y3 mset honest-service 0! Q, P! q& o- o- \( k3 }
4 D- w4 [- I/ X/ Q
set unhonest-service 0" |5 M- Q& Z" g9 Y
! X: @, p% c) h @0 A! q
set oscillation 0 E7 M! F: h+ l/ ?2 a& D& x. r+ j7 @+ e
# @4 f% O: f: k# H' q
set rand-dynamic 0
6 z& _4 p6 Y0 |/ l# W9 Oend# w! j; @' }, W! ?! w# S" K
+ T8 Z5 L1 k: J9 w6 z; N
to setup-turtles
( W4 k" j3 C& h. Eset shape "person"
9 R$ M% N/ w; x( H. a. ssetxy random-xcor random-ycor/ _, Y: w& |! q& M( b+ {
set trade-record-one []
' I! c, R3 v) R3 }: q: R; l1 h7 [* M9 U) G5 w5 G
set trade-record-all n-values people [(list (? + 1) 0 0)] ; K" K: _$ _+ T* u) m
2 B2 B: s+ t4 Vset trade-record-current []
' \8 ^! I: y: A# w1 N# K* I! kset credibility-receive []) y1 |" M: B0 ^! x1 ]
set local-reputation 0.5
+ ]$ U+ d2 b5 ]$ N V# L5 Tset neighbor-total 0
' `, E2 G: Y% c2 vset trade-times-total 0- `3 S/ L, H. h5 j) k; {& u& V, ]
set trade-money-total 0* Q) D1 T5 q& D$ h
set customer nobody/ Y$ U" c X! b$ s' I
set credibility-all n-values people [creat-credibility] y. h6 J8 b: [! ^% r# e. V
set credibility n-values people [-1]: T# G' Z: `- F1 c6 A, G
get-color
" u3 ]4 | T! {# r( i( O- k
% F" l* C. D" A9 ^) U: j. Lend1 P& V% \& J, d8 G
6 F1 i2 t2 d- `( ^' i+ T, g$ m5 C; q( Cto-report creat-credibility
; @- P! j! A: freport n-values people [0.5]/ s X3 B+ e1 Q9 ~/ J% ?
end
* }# A( L" R% v* j4 L7 ^9 U
; m* J& s8 p5 Ato setup-plots7 w. N1 L) G- |- `4 Q/ a6 r
+ V1 h4 b$ U% s$ V( M( Y3 D
set xmax 30
8 w% Y/ c: W2 c3 y/ {- d5 U7 _. b, i
# E6 K8 F- }9 w: m+ Gset ymax 1.0. P+ T7 e# ?+ G, \
( `5 J8 `# u+ y
clear-all-plots% B/ S6 X, R0 e) S4 w' a q, Y$ a
9 q9 b: _# A: | t) Zsetup-plot1 |# w2 F m( W1 D" ?. C
/ Q4 |, O- s$ Z( }setup-plot2
: I) ~( n9 F7 R" r9 ?
) |3 ^5 ^3 \+ D3 E. d, y/ }8 Tsetup-plot30 `6 Z2 U* O) P8 Y/ `
end
/ b6 T" F% Z+ q" ^. {1 Z% ?/ _ Z! Q1 Q3 ^! k; L3 P
;;run time procedures
5 l1 a% M4 `6 t' Q
) M# ]) e6 \2 R7 ` V% W' J$ Uto go( W* F0 S. t- E# b
( s# J2 s. i2 z* P8 x$ K% x3 j H
ask turtles [do-business]
' @6 n5 [# o0 p" Cend
( M8 }0 @) r* h1 P% j# {; E8 b _! C/ \3 Q! `
to do-business ; u5 e' s" q! M1 P. A0 [
; z j( ]7 D" N4 U# Q
0 c; v6 k" a5 Nrt random 360
9 Q/ C& I' Z2 |2 N
: V) b7 [, W+ y: A1 ^( C( Sfd 1' z& ~: b+ k& \: l9 w& T
* Y" E k# h- a+ Bifelse(other turtles-here != nobody)[
+ u* l1 ?" O1 ^+ X2 N1 ?( I/ [: R8 T5 B; |
set customer one-of other turtles-here: _( {$ ]* t# \* [( I
& Q# f1 a2 N- L) B;; set [customer] of customer myself/ b8 B5 \' w q# @0 l i/ o
) a1 l- z6 d- f8 kset [trade-record-one] of self item (([who] of customer) - 1), H& ?+ D' }0 ]' }
[trade-record-all]of self! O V3 ^3 C3 D. \ f) I# }) a
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self( v( Z+ V# k- ]
. W+ k# {; p$ h7 E8 Mset [trade-record-one] of customer item (([who] of self) - 1) f, a( H# X, I; P( n) ?9 ~
[trade-record-all]of customer( z1 p9 Q4 U/ F0 _' w
0 M8 D" i' f @# L7 C4 hset [trade-record-one-len] of self length [trade-record-one] of self
2 s& J/ N1 z; n: V# r0 X! y" @: B( N/ I( i
set trade-record-current( list (timer) (random money-upper-limit)): O, Q6 C* K/ v" Y+ ^
; I5 ~! k8 U) L0 o
ask self [do-trust]
7 K- A2 o; u3 x: L+ A7 f;;先求i对j的信任度
% d; {4 V( B1 ?: g
# l9 ]* x% D: dif ([trust-ok] of self)" _% o, w2 K# ?, G& N" A0 `; t2 j
;;根据i对j的信任度来决定是否与j进行交易[
9 d1 H" p9 J' o# \& zask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself1 s" b! U" u' A" ]- y
0 }9 Q& f. L9 m# k
[/ C9 _1 n* y2 i: e( \; r2 j
, p& U W& I+ ^2 i" Q% _do-trade& N1 W' a. o; O6 G1 d( y+ `
# s+ \$ R8 [( f, e# C9 m) j
update-credibility-ijl
9 H$ ~# j# j/ K j) ]) H# L) [" l- F; f
update-credibility-list
7 `+ g# W8 @! \8 w4 f* ?. W [/ ~# V+ i7 Q& J
8 t) ^0 q3 H3 `" m; U& vupdate-global-reputation-list
2 K) i4 H$ C, O9 t0 K4 `$ k3 ^+ A8 ]* b
poll-class" ?2 C# c) U7 |0 C0 a' H6 c# r
. o, l; K/ `' u4 m1 B# D) ~" yget-color
: R0 g) L0 E0 | \4 A# S
2 t* ~- z3 s: |/ K! F1 L0 W" }]]- ?7 x- ]1 q1 [ D" o0 G8 V9 `# z
; Z0 m7 S7 v; o5 J: S3 E/ P
;;如果所得的信任度满足条件,则进行交易
# Y' A) h, @6 R9 D& [# o% A6 W
, M& ~0 a! y7 J2 a8 q[+ C9 f5 G9 n v# V$ W, b' s
/ m3 t k9 V! H- l* ~
rt random 360
- t, P0 t2 k3 s: u
x2 G# b% F% B7 [7 j2 v# vfd 1
! {# H R- h, p7 O/ k- J6 ~! j }# M0 ?! o& |! o/ c$ w, z
]* q" Z. J( u+ Q1 p4 l1 m8 Y
5 _0 T! v# [! i
end
& m" y; ? f* N. _; b( U5 O' F! o8 a, @/ O+ g& a5 _
to do-trust
3 j2 O' Q4 e+ {+ Xset trust-ok False
/ c% J7 X' M6 x+ ^6 G2 i. y k* y+ ]4 W; [7 E( J7 j, H
& Q% y9 i$ |! c- mlet max-trade-times 0
" y1 @& h% G. ^$ V/ P- Tforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]0 q& h5 l$ @7 [" H% I2 H
let max-trade-money 0
' @; J2 t: d# k' kforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
* h" G8 e" ~0 }let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))% r5 Y$ e+ `5 X1 J& w# U @
, k: Z+ w4 }+ }, k
9 ~2 G; o' B; m% V; dget-global-proportion/ g5 ?' i! K8 v9 Y/ ~. ]& s; D
let trust-value/ X2 h2 u# c0 H8 D4 {) @6 T
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)8 n- d/ ~ \# u1 T! E
if(trust-value > trade-trust-value)- I3 d( k# D, i1 q0 K$ X3 ^
[set trust-ok true]. k J2 q, v5 L8 H
end
, p" w& C5 |( I$ |5 B, X; p! } ^: d9 L% u0 i& W5 Y" B
to get-global-proportion! h; [6 M; h3 I7 ~2 z$ l# b
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
) Q2 q8 e! c4 j/ R: R) M[set global-proportion 0]
" e+ W4 h3 W& z' y: k1 r9 x! |[let i 0& d1 Y4 d6 H) y+ A% [4 n2 `
let sum-money 03 {# N h7 ~& c
while[ i < people]+ I4 q& M: {2 p% Q( q0 H; B. I
[
9 T* u% M: H$ v& Y- R2 B- oif( length (item i/ n D6 B8 T6 V" X7 p
[trade-record-all] of customer) > 3 )
0 F) |. p% t Y- x0 U[2 @; h* W' A$ D6 e3 Z+ N* E$ U
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
3 D$ Q( b+ n: G]) W+ T3 J4 ~# A2 r: `- F+ i# S
]
) ]( p ]! G1 v. \( L: hlet j 0
* I4 _! u5 p/ ?! O4 _4 [let note 0* c1 a9 t! {# x7 M5 e
while[ j < people]
4 [9 ]$ V, u4 {3 j[
$ c& v1 l8 [: W5 Qif( length (item i
2 s0 g! z" F* ?1 E% p% b1 ?& a[trade-record-all] of customer) > 3 )
9 P. V$ h& g: Y8 O6 A- h[
2 @! h) h6 H# B2 i* M: ?7 K2 vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 C1 i) V$ l1 k, Z4 ^[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 x$ Q1 P1 g' f, N1 K! @' {/ g9 I[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
% U8 I' t3 g. \; F# e7 {$ x5 L6 g]4 M, K( K* W: P
]( O9 T" n% e6 D6 ~7 ^/ x
set global-proportion note- X$ b3 J0 J, G. d) j
]4 U: d) _" U& S: T5 c# ~5 \
end0 N' F" Q6 B* `
$ \, x$ u. a- h
to do-trade M) v9 k8 {/ u* z/ {9 E: P
;;这个过程实际上是给双方作出评价的过程: l! n! f( e4 W0 F- a, n" u0 i: W
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
0 Y: _9 x4 `: B& a6 j) O1 {set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
' E/ \* B$ ]4 lset trade-record-current lput(timer) trade-record-current% H- S3 t2 u2 u' @! m8 q6 X
;;评价时间2 C3 i5 e( _! p6 H; ]2 k* g) Y
ask myself [ y" y' Y6 y8 @
update-local-reputation
( ^/ r9 s/ e+ f& _4 d5 fset trade-record-current lput([local-reputation] of myself) trade-record-current2 I" c: Q7 G0 I8 w
]# I! Q0 c5 h! Q0 z' ?
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself/ T+ e1 e, c3 }6 ]& c
;;将此次交易的记录加入到trade-record-one中
3 U* `7 ^+ k( U; R+ `set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 z( U! S% _3 v" b" A% d
let note (item 2 trade-record-current ); n3 [% k& n2 f+ T. h5 [8 ?$ N h/ h& w
set trade-record-current% p, U* v! p: y
(replace-item 2 trade-record-current (item 3 trade-record-current))
* {' y# k7 t" ?6 q; M& aset trade-record-current5 F9 H1 m! y% c6 e$ E: }6 z; |3 h
(replace-item 3 trade-record-current note)
8 X- ^& X4 B+ P5 Y8 u' \2 o5 L6 M! w8 U' x; L2 @
- R5 b8 j8 L5 D
ask customer [- ]7 R0 {+ p6 G( t
update-local-reputation
% j3 I0 X' w! kset trade-record-current& w6 n2 e4 w( E0 G
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ( ~& ?# T) J% l$ A& q6 ` ^3 s
], X% Y" \# v d- p' I) Q" E% T
9 J8 F; u; c. l% h' C6 a
) I! F! g* G3 {
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& E u! t5 i% |0 ?% e
8 ^" f/ @0 {3 q3 T1 v5 e, V8 H* D1 d7 E
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))% P) p* ^7 y& A: r7 e5 C
;;将此次交易的记录加入到customer的trade-record-all中1 e( s, i. Z2 A9 l! R' \6 \1 D
end
- ]3 R$ I9 v: ?; r4 i/ M7 Q) {9 C8 B- I* w
to update-local-reputation
! O- E4 I6 A5 \6 ^* l. Fset [trade-record-one-len] of myself length [trade-record-one] of myself- B. D( W/ V) ?
! l: T; @- X0 ^4 { }2 W
! k; X. E" F) p1 O+ j4 v5 I- B# P4 t
;;if [trade-record-one-len] of myself > 3 ) H. n$ ~6 {/ _: H0 n6 {, P7 o
update-neighbor-total
. h% |# A3 a1 e; t;;更新邻居节点的数目,在此进行. e' t) R5 B+ p6 A$ M1 J9 w, o3 |1 W
let i 3! v9 b5 g' p ~* K6 [/ F+ i
let sum-time 0
$ d& g6 _/ J" f4 l1 B" g% }# [5 pwhile[i < [trade-record-one-len] of myself]
- X/ h6 X& p; o3 u% b0 |[
' O& N. F4 C# r4 ~) i# N* Wset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
: E6 i3 v }8 M, x N% S( n! s! v! A; ^set i
) ^. g, Q0 z, F. {8 K6 J& g- i( i + 1)
9 W7 K3 r% T# h. f]
2 W# j2 F4 v7 c& j0 s1 I; Flet j 33 e% ~/ ~, s2 b6 ` s- N# U
let sum-money 0
- o# G0 {* I$ |% S$ \2 dwhile[j < [trade-record-one-len] of myself]
6 P8 x! L8 W- B$ b1 x* P* H[# S& r2 o7 V- e9 n
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)8 V4 E* q- a! M9 r4 ~
set j0 }$ S" E D3 t; {+ a9 K
( j + 1)' b& F2 F4 m8 C
]3 J" p( D) C9 {: v5 G% H h
let k 3
: G C8 _* H$ K6 I. zlet power 0
3 S1 a+ p4 I* q# f' mlet local 07 e; ? g% U$ d' _- T0 z
while [k <[trade-record-one-len] of myself]. Y! d- K/ X, A4 ?
[/ g$ M( L, }, s' T' T7 z# i3 ~' V
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) & f+ f1 s9 v! \/ Q+ D
set k (k + 1)7 X: \# P: g! @) Y3 T
]
! T- S+ D3 v) b5 P) _$ p$ Gset [local-reputation] of myself (local)+ Y* B2 D: j( V3 N( Q. p
end1 s Q5 ~5 l& Z* c% j% p
# ^0 ^/ h" T- d4 Y3 t* k
to update-neighbor-total& k7 c' b3 D: k+ j) i* P
- s* [) R% W: P% k; Y
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
5 ?$ V5 M4 \" _% V5 ?3 B( X- K7 W2 p; A: O- ?3 U% @
/ e( R" W; S6 w+ O3 ~7 C
end
) I8 _' w; r- [( a
' \+ K7 D3 J' sto update-credibility-ijl 0 ?0 n; v A4 H5 W4 x: e, _8 A
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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。
. K! ]/ n! H0 Y, W- f% tlet l 0# A9 @- t R. f" C% \( l
while[ l < people ]
7 f9 \# I T6 h2 b5 ~: P;;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6 t3 {6 P" `' X! ?
[
( x0 R+ m; P/ s, _- Jlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
, l8 r( [3 h% ^/ S: R( s" H1 nif (trade-record-one-j-l-len > 3)! g2 f( c* ~ y2 B" M6 S/ B N
[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
1 h. R( Q: e2 l% @: H* flet i 36 p2 J9 m* Z q4 O b" s
let sum-time 06 c+ N# L7 R8 s) a7 q* T) \
while[i < trade-record-one-len]! q3 q" C. u" _: l6 O. M3 H* b, E
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
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( i + 1)
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let credibility-i-j-l 02 O7 v ~" z5 f6 u+ j* S4 Y+ E: G+ R: z
;;i评价(j对jl的评价)0 E2 O9 K) e' t$ z& `
let j 3
( n h1 n7 U4 H1 ?let k 47 h; {4 v! }) h, n
while[j < trade-record-one-len]
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+ G- N! f$ ~$ o* C5 F/ |7 ` z5 swhile [((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 o2 b1 h, t# U$ _& Z+ J
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)/ t1 D. N; R8 ]# s
set j
) A2 V K* s4 @& Y+ ~, S C( j + 1)6 B X4 | }6 r) C% A
]
% H G" ^6 z- A7 L# Yset [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 ))7 A; I. Q6 ^7 Q. y) i; }! q
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))# i/ d6 o2 h- Q8 \$ Q6 i! H
;;及时更新i对l的评价质量的评价
9 ?: o$ ?0 N* v qset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]6 y( W- P3 l& x4 e8 ?% ?) K
set l (l + 1)
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* x, Q1 F8 U, ?7 Y; \. fend6 E5 ]/ |* G+ A* w6 h W
1 A+ r1 k1 S6 J! ]# F% L/ B8 Bto update-credibility-list
! ?* D# R) ~* f S+ ilet i 0
0 k$ S/ ~# K/ z* V J1 gwhile[i < people]# v' Y3 [+ H1 P4 R! U" p
[
6 T4 p1 T* ~3 T# jlet j 0& \5 n7 j# I, Q0 |% _, _& K8 }
let note 0, e0 Q3 L6 \( M
let k 07 j1 e8 M0 ]8 V' P g4 ^
;;计作出过评价的邻居节点的数目
0 W2 Z( |7 L2 E, m5 lwhile[j < people]
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if (item j( [credibility] of turtle (i + 1)) != -1), ^( ^" _8 I, e
;;判断是否给本turtle的评价质量做出过评价的节点+ c' W' w u5 G/ Z
[set note (note + item j ([credibility]of turtle (i + 1)))
+ d f& [! k: m' |2 G;;*(exp (-(people - 2)))/(people - 2))]# z3 L6 Z! I9 a- h" L
set k (k + 1)6 H0 p5 U, W+ p: q4 A. o" v4 d: r
]2 S4 k5 h; D: M9 M; P
set j (j + 1)0 H x) P5 ?4 V4 i
]
2 i+ j/ |) {4 u5 a8 pset note (note *(exp (- (1 / k)))/ k)4 i9 ^1 A4 F/ l2 R# J! u& C" c
set credibility-list (replace-item i credibility-list note)
. k8 \/ k+ |8 |% p2 H F$ k/ ]set i (i + 1) n0 L& p( R, i
]% f9 i" [& _; O- m
end/ `. f; H8 F# s4 W- O* @
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to update-global-reputation-list8 ]" I" l- Z( i, Y6 g5 j- e& F5 r
let j 0
1 u$ B& y! o" I) t' @& x4 zwhile[j < people]0 ~0 {9 d1 E# q
[) n* u1 A# f- f; R( {6 P
let new 0
/ J* p. h! \. S) J1 A9 V' e;;暂存新的一个全局声誉9 g" H1 c- P4 c1 G
let i 0& \, W8 Y" L; Y9 c% M
let sum-money 0$ @1 r, `: I B, {7 [
let credibility-money 02 _1 _9 y% [) ~% S8 y2 j9 T8 X* O
while [i < people]
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" d3 g: {& u. |0 \- O+ bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
' _* @- g" r5 _ c* g: F# Z" Mset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
4 f5 T5 h9 I% |) q: n9 yset i (i + 1)9 L# s, r; x8 s" H) }7 a6 k
]
$ p+ f, c2 [+ a# f, L/ Tlet k 0
4 ]5 m4 j) m+ z9 `+ J! elet new1 0
; s7 S" w" L: ^! b- Swhile [k < people]% E; S8 A( x, Y9 ]0 O
[5 d6 c' t6 O* d& q1 A: x, X
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 ]# V2 n. j# L" Rset k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
6 q: w! d, s8 `6 ^" H& Pset global-reputation-list (replace-item j global-reputation-list new)+ e" ]: l( ~( N- @4 e' {0 B4 i2 a
set j (j + 1): {5 c R8 t3 t3 D" Z3 i
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end
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9 C5 A: `8 R) {+ n! t+ k5 j+ K' I9 o, J/ ]
to get-color4 J4 @& e6 G3 u6 B6 q( p; x* ] H
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set color blue
7 h! n: J+ t( V" Y2 Cend$ ]2 t/ J: {' H+ l2 E$ m0 ^
3 |8 U# v7 Y* c x, R9 F3 \" c
to poll-class
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to setup-plot1
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# Y$ g9 _+ q ]0 z, m5 M* x5 ~set-current-plot "Trends-of-Local-reputation"
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0 W" B" a F8 v9 o& Aset-plot-x-range 0 xmax
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* y3 F' @) M' _0 Eset-plot-y-range 0.0 ymax8 N- f; Q2 y1 i( c- x `; i% Z/ K
end, J. h' g1 a/ ?. p
8 ?/ Q1 u4 f t. I( F% P* C; L* Y% a$ rto setup-plot29 X, @. F6 S8 q0 t
7 q+ d: m2 `1 {" M" i' d( v1 D
set-current-plot "Trends-of-global-reputation"
4 }. |) i ]' E/ R8 O/ P
6 J7 x$ l& l; s( ]set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax! l6 {6 U6 D, K4 y; \/ @6 x
end
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to setup-plot3
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2 g: @7 [, S7 D! i+ d% cset-current-plot "Trends-of-credibility"+ l" [4 M+ v7 g9 E* z+ f
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set-plot-x-range 0 xmax. _' C# S' W$ s
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set-plot-y-range 0.0 ymax C* I' R- F; }6 ~! v; N U
end
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* T! y9 ^9 V! M3 c0 V+ c: [to do-plots
# g* {& w6 n# O# T, t2 Wset-current-plot "Trends-of-Local-reputation"
. T" o `$ P ~+ [) _$ Gset-current-plot-pen "Honest service"
; l9 C* L# D, `% R# e7 r9 c2 L+ cend1 Z/ n1 V: V2 C9 s2 B$ h) Y
3 B5 G+ j3 N# f3 O5 p' r9 \2 z; f[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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