|
|

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
0 g- h8 u8 T+ f2 C/ N/ h# dglobals[
2 ?$ \; b; G+ M$ M; ^" [xmax5 c4 }% f" O& |2 W6 i+ a4 I
ymax" S$ _% \" P" q1 l2 {7 F0 r3 ?2 d
global-reputation-list' J2 L6 Y) D' q2 t( p+ r" S
, O# K6 g# }. X' R; f4 F8 S
;;每一个turtle的全局声誉都存在此LIST中
0 K' p/ o; ?7 }8 C) V: n6 ecredibility-list
, P$ U3 c+ V- k0 M# V;;每一个turtle的评价可信度# \" {6 B- l, d ?7 A
honest-service
) A, {2 e; A' T# E: dunhonest-service
7 k; P [6 z! H+ Hoscillation+ T% b4 y7 V, Z6 c
rand-dynamic* z" U" Z" Q9 N$ s& W/ |
]
E ^8 n# y F) [0 T' @; ?) ^ I5 ]7 w. x
turtles-own[
# h8 ]9 j( N. t/ Ctrade-record-all! Y C7 I' r$ V# e( |- L7 N( z" L
;;a list of lists,由trade-record-one组成. N( V% g3 U5 P& b% s1 r
trade-record-one8 } Z' ?- [! j: t
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录/ M5 o# ]) I/ c
6 Q( C9 z2 u1 V/ ^0 ]( b" o9 Y; K3 m;;[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]]
) |5 ?1 D- A% b9 R0 i; \1 Jtrade-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]
1 p( `4 N- x: L) N( J4 g+ ?# mcredibility-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
) r: ^ k5 s5 K! w6 J+ xneighbor-total
t* K0 R2 H2 {& b7 d;;记录该turtle的邻居节点的数目: Y% l9 j/ t' u" {
trade-time% h$ f" X6 ?: D) ^. d
;;当前发生交易的turtle的交易时间7 A- p: b3 v/ [6 x
appraise-give
8 s4 T& k) L% c( D, i& L3 E$ W. I;;当前发生交易时给出的评价4 Q' S! T- F3 J; M
appraise-receive! A% X: O0 k/ V# x* T2 y/ X; V
;;当前发生交易时收到的评价2 Z+ C5 m; g1 {" W; E7 B7 b
appraise-time" d5 o+ R' h. E c
;;当前发生交易时的评价时间- `5 C9 c' o5 H7 h
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
' E5 F7 J$ z: M# _! ^9 g: ytrade-times-total& v6 j4 K9 ~2 B/ u+ s* o' U
;;与当前turtle的交易总次数
% C- e5 u& O$ s' ~4 R9 {6 B/ [2 gtrade-money-total
% i% Q9 i; z8 m$ q: b% J;;与当前turtle的交易总金额! P) D: t' l6 a4 Y. Q0 r
local-reputation
9 K4 S: M% z1 x( V/ Cglobal-reputation
' a1 ~- }- a& R a/ ]. e9 N* Icredibility( d! ^0 W8 N& t
;;评价可信度,每次交易后都需要更新: J( ]6 k: U3 A5 K; r4 P
credibility-all
# L% j4 x% I# z& N+ O0 G2 M;;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 y: F' h+ z+ A7 S; W' v2 p7 q4 a; }! m+ V* G# D
;;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 m5 h( w: A5 I2 Q- S- z8 C5 r# T0 q
credibility-one% ]8 X+ W6 U1 U- l. }2 \
;;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6 s0 |, C4 K. K" a2 Z' c
global-proportion
5 g: `0 U/ j p1 s# ycustomer4 z4 l" s+ X5 x" C# v5 S% B
customer-no
. v! P( Q7 ~7 Y' ]$ q4 ctrust-ok
E0 R/ i7 M: Etrade-record-one-len;;trade-record-one的长度4 D4 H( V+ T o0 x2 w6 L7 z" j
]5 @" f4 S- x/ a9 E. ~" B
; }1 @8 m* ]; e+ P* |;;setup procedure
* p# Z$ P7 @* p* T2 C( U) \
" Q$ u# B W9 Vto setup
( V* p' Z. p+ S: d6 _9 z( W Q5 z
! [0 f: ~6 q$ l- sca6 o ~, }- d" g. A
* @- `- ], i7 u! R+ E7 ~initialize-settings1 p& H: ^9 V/ `+ _" Q
1 \: ~+ U8 `8 M: A* J% u+ Rcrt people [setup-turtles]% o- Z) i; v8 R: l
* b- P( F0 \5 E7 ]. J6 ^
reset-timer1 z! f2 _9 T3 w6 L0 R+ M- h( p+ q: T
% Y4 w& G0 U" Vpoll-class
" S, M5 @: u0 Y; D; Q) ]! W$ _; U* a V* K! E* h$ u8 ?# m
setup-plots; {+ c! O0 y' f; D# d
- G. X; W0 L# W" q) rdo-plots S2 f- x$ S" Q5 b
end
p+ B- r% ?4 I
1 \" A7 L+ x+ Q4 }8 Qto initialize-settings
/ P) V t1 S; R" i" T4 B4 ^
# \" C8 x5 a/ t) e5 C! Dset global-reputation-list []8 A% q& L# n9 Q
i$ }# a! e j; A* i# Y
set credibility-list n-values people [0.5]
F X% F) `6 ?' \' f: V- w; u
set honest-service 04 _ k9 ]5 |3 |" a& B) u
, Y: y! v) u5 s. t3 z7 R, Q
set unhonest-service 0; E. _9 {8 C% @! [3 A4 i
- }& B' M/ L6 V+ K$ h: \* `5 jset oscillation 0 [8 ]4 t1 J% i/ E' T+ x
/ s0 l) `5 I* R9 h3 ?1 J
set rand-dynamic 05 k/ z. c; c8 J2 t3 x
end/ r% ^4 |$ o6 a
$ g1 |. ~$ m# d
to setup-turtles 6 }1 v$ j( p4 ?
set shape "person"! B8 {5 F3 {( w% v9 M- F* ^( ~
setxy random-xcor random-ycor5 W" S! |8 B$ _
set trade-record-one []
. h3 r3 A( M! r% h6 C
/ W( P7 D* V% V! e9 R: Y. G2 Eset trade-record-all n-values people [(list (? + 1) 0 0)] 9 E* B) B1 g! ?+ v: S6 b' K
' | y( d; _5 A' M9 }2 G
set trade-record-current []
% M% A1 c) J1 cset credibility-receive []* j- Y& E9 X# B7 r. v
set local-reputation 0.5; x3 \8 d" t& q2 p, c3 d& f
set neighbor-total 0. s" @4 Z7 W5 w3 K- ^
set trade-times-total 0
2 |# Q8 U, F8 z' A% Gset trade-money-total 0
+ m8 a3 _) G+ eset customer nobody
4 w6 N. y9 _5 tset credibility-all n-values people [creat-credibility]3 {1 ^) v# H% `4 q" D& A* ^
set credibility n-values people [-1]/ z6 v' |- X j
get-color7 A6 c/ h7 Z. l( W
8 j. f, U# H# c) Y* s+ Gend; N( T2 X; M: E5 ~9 \
/ f) R7 W+ t) l+ f& ~
to-report creat-credibility
& I, U+ S/ f! y$ ~2 {( ~report n-values people [0.5]
( ?3 Z7 R* y& K2 E/ R& M6 zend- M3 i9 V0 f* O9 u) j
; k. L( c3 s" |& @' x- E) ato setup-plots
6 R$ U+ }. f, ^, U1 R% X& p7 f0 p% I# |* Q: o! \& O& `
set xmax 305 z5 C6 P* X9 @; Q6 u, d+ W
& p* \3 U; b1 l$ ?
set ymax 1.0
+ F8 K7 Z% k- m7 b; l. R( f( \, A* F1 J+ {3 b
clear-all-plots1 G, l6 [. x( h5 E5 n4 a6 n
# G& l2 |5 ~, l% @/ Y7 m
setup-plot1
: t* h1 K* ~1 Q5 \; }, r
/ e- u( j2 L& l6 d2 Q1 O) y5 dsetup-plot2& e! k5 `! @9 s6 _( |) G
9 E- h2 `& r' I( Xsetup-plot3
% ]& f1 G9 I) n" J1 O H- dend
/ F0 i. Z X6 o: ] V V" V9 ]7 Y9 D0 q( ~6 d6 V" `1 o
;;run time procedures3 e9 H9 m8 P1 q- d3 V, Z
# R8 ~/ N3 w4 J7 A7 D, `to go: g8 q( S) `. P! K; c$ i0 h9 R
0 [( O' w) L6 x, n
ask turtles [do-business]$ H( E" Y/ q6 K( ?9 y% ?
end! c2 z2 ^/ v- A/ O% `. }+ e( f4 ^
S$ p4 z( T; z [* S' ]* R
to do-business
: s0 E- U1 A/ P- u" c5 W0 R8 Q8 A0 x" t Q; m: }0 b+ K& G
5 }+ H0 l2 N, x. a5 f9 s) i
rt random 360( p" L- o: Z3 {# D( L
% F1 {; d" `3 d4 k' ?: U; Hfd 14 b& j# W3 N5 S; X( w( {
9 w9 H9 S+ l# p* F# J, J. e
ifelse(other turtles-here != nobody)[, n0 L9 L2 u$ K- e2 u: b; E. _
& `+ c5 @6 o' I K& k+ G3 Mset customer one-of other turtles-here/ P& F) u, [- ~8 x
1 T E; D1 y5 D$ ~( R7 j5 E/ D;; set [customer] of customer myself' d3 p0 R, Q- h5 l1 A" l) ], R
, X: ~# ~3 ?3 _+ Vset [trade-record-one] of self item (([who] of customer) - 1)& P3 A% n3 W8 U
[trade-record-all]of self1 | p3 X% u) o' E: A1 J6 m
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self6 u7 C( ^' a+ q
( n3 j& p$ H, G/ o" A+ J7 I9 \5 R
set [trade-record-one] of customer item (([who] of self) - 1)
4 E- x2 M/ @$ |* d* R% z% y[trade-record-all]of customer
1 D% l1 v+ E* |% x) T
5 b; B! }' A5 S% e4 Sset [trade-record-one-len] of self length [trade-record-one] of self
' A+ g8 u, v' d7 s; R1 S, f' N3 F2 I2 \! `# E7 c& Y: h
set trade-record-current( list (timer) (random money-upper-limit))
8 _2 ^ L* E2 ?/ N# m
# t4 o8 I; j* jask self [do-trust]
: |+ O/ W- b, Y; N _;;先求i对j的信任度
8 ?/ |7 Y/ h k7 i. p: d
: m& J% r! Q- y' s8 s) S) {; oif ([trust-ok] of self)2 }; j) f( l) I @ Q7 ?' b
;;根据i对j的信任度来决定是否与j进行交易[% q5 T# ^% L) e( i4 h( U! G I
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
7 U3 E# o+ j/ a v; E3 I, j+ x5 _2 M
[
, U f& C0 a# g5 a( v- h5 h# Z6 Q: y; W, s9 U) q0 x
do-trade5 l( ~- ~+ B) K I! V
- W6 o" @6 |$ m7 g/ e. kupdate-credibility-ijl9 u2 I" P% `- M ~+ j" y$ C; l9 O
- \& {; R4 l) O( B: R- @; J9 u8 z! hupdate-credibility-list+ o8 b: N, x6 b
) V2 H: l, x( X' [* g
& q( O8 C7 j# U. v: eupdate-global-reputation-list
) E. m! c) z% P: j* @# b0 _3 z7 W
- K A# N/ A$ C Y7 rpoll-class
% n: c4 U- d4 t2 r+ B1 Q& V7 F4 N( v( i9 F- z
get-color
, E3 S1 e: ^5 E2 W" @; {4 Z5 ?( _4 f' d8 _2 {
]]
$ ^, L; K g$ K1 s! L& P, e7 V
. m0 h+ @! _4 I7 V;;如果所得的信任度满足条件,则进行交易+ o6 n7 @9 d" t0 l
R7 z7 i4 M+ A* c& Z; \0 J. N
[
% f3 j$ h1 t0 _* z. r( {7 {* w
4 F6 U( b. J1 V+ Xrt random 360
& \) |! u) ]; M3 L2 k" H% R1 b" p9 i: R5 d
fd 1
8 k i# i1 W+ }" {
4 L% } v4 A! D* ?]
# ~8 J: x/ Q- L9 f0 h: S3 ? W s0 u5 ?; Q B d# `# N Q% f0 s- _. A
end! _4 \; \, U# E" Z8 O5 T* P5 L! q
, m) x7 D2 w+ H) R
to do-trust
' D6 |$ l% @, Sset trust-ok False) M, a; _$ {8 {3 R1 a5 p! w8 m
- C+ g, a5 Q( V% h. y1 n. a1 h6 w6 v5 F
let max-trade-times 0
4 h+ j; O' X2 [. J7 [foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
: i% k6 g% s8 ]' R; ^" Mlet max-trade-money 0
( `' V& G T( s! O3 j; ]foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
) B! ^8 G" F% w/ E; j; Y% Hlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
+ H6 a- z3 t) W5 g/ s% L7 u' m( l1 y$ D% I j: A) r- I
5 v$ ]0 }4 A* g5 `0 k) hget-global-proportion j4 q! ?8 P3 |$ J7 e) q. ?2 |
let trust-value
" c m) m, K9 C3 wlocal-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 `3 k# q) n6 `0 l1 L9 ^
if(trust-value > trade-trust-value)& [! l+ g- e7 E* g. Q+ B
[set trust-ok true]
& n5 k5 e' s/ r5 i' ?end
$ B6 s8 E. x, P! g8 Q: W2 J
8 l4 q3 ^: ?; M: jto get-global-proportion
% g2 o2 _' j* ~ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 D1 K2 P/ |1 n0 o2 w[set global-proportion 0]
# y9 H+ P! g. A3 }0 U% i* l3 b[let i 0
; v4 Z) Q3 D" O0 a a% ?let sum-money 0, L2 o+ g" u$ e% T$ _( u* h1 y0 C, x$ F6 C
while[ i < people]. k( P0 |" a' z( c2 d0 [
[
- `0 _+ |5 W8 T Tif( length (item i
3 E: n! H. T |: A; R- Q[trade-record-all] of customer) > 3 )
+ w$ x; }0 _7 Z+ Q( H& v[
+ n: L; M1 r! B& c- Hset sum-money (sum-money + item 2(item i [trade-record-all] of myself))' S0 R. S$ Q% c; z& h6 h1 d+ P( j% Y
]
- u9 d1 U3 G( ^4 N. R3 W& ]/ D5 i]1 {+ l, w, s: q( X7 N
let j 00 U# w' L: ^) o2 C/ m0 D7 ?
let note 01 z& k4 c+ v+ f6 E6 z
while[ j < people]' Q2 L- a4 i3 n. J
[
: ^) }" o6 a' g/ s6 ?! iif( length (item i
4 j: N+ C. F2 a: `9 D$ @* Z/ x[trade-record-all] of customer) > 3 )6 x3 D/ Z/ h g& R+ A
[: i- x; B/ e8 k$ J1 D
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)- B- Y; @% K! g/ S* d; u) j0 o: A
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]" z0 @1 J; e- q3 G" d
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]8 f3 B- O5 e+ p( \# H4 {9 F3 G. _
]
) W3 e6 R6 T" z& z]0 ?/ p+ |0 @3 H
set global-proportion note- M' F" K( f( T* L* R& ?, B
]
. q0 k" D4 C' ]" l9 Wend8 k; K$ Y4 I" n& J/ B
: I, r; W% N2 Y# @2 v) L: R+ x4 x9 S
to do-trade& O5 X' X! P# c
;;这个过程实际上是给双方作出评价的过程
8 u( v+ V, u$ j: r6 [: \set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
9 w) |# ^. {1 C; o8 uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
& K, |. M8 q* y# Y$ x# j+ Jset trade-record-current lput(timer) trade-record-current
# g% n, q! `& J3 D;;评价时间
3 P5 S1 ]. |$ k* Cask myself [
& i" m( J8 w5 p4 H- v7 ^, A) ^" hupdate-local-reputation! J8 C( J0 c2 I6 k* Q
set trade-record-current lput([local-reputation] of myself) trade-record-current
! Z7 u. e7 A9 |7 i `, D' l# B; g3 S]& s$ c% p( M3 S/ }/ G5 x3 ?
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
3 P& }" B! J0 Z6 g; W& K9 D;;将此次交易的记录加入到trade-record-one中7 Q) r# @% {) w5 {0 Q
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 b8 `: p+ O; T5 J" n* M
let note (item 2 trade-record-current )
; ]' X6 K: y8 u) C! {- Yset trade-record-current# ^" [! [, |! O# l6 d
(replace-item 2 trade-record-current (item 3 trade-record-current))7 B: j' G/ q ~1 X& u
set trade-record-current
4 A. o- l+ \8 m/ \* B(replace-item 3 trade-record-current note)
# N6 \6 {! b) \* d. o [( {6 e
/ g! W+ g* ~, p; q. c. \0 a! L, u8 Q( q) A- o9 S& p1 N: b
ask customer [
" K& j. Q0 s9 y& @3 n1 A1 W9 Lupdate-local-reputation; A6 N, S1 W4 f7 x
set trade-record-current
* C; `( w; ^0 D5 H( y(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) " d( M L. A' N' ?9 c
]9 K8 h: g. ], B h; b0 i4 P
! M4 [/ q( D. u6 F4 m
4 e3 }+ M6 c" Q: }" U* oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer" G& R2 O6 m4 o
$ P8 t1 j+ Q) {set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))- {$ K7 \& S; a+ g
;;将此次交易的记录加入到customer的trade-record-all中
+ ^8 ?, t. M: y) J, ^end( z% W7 N2 k" M1 K& x' [. N
0 }0 B6 h6 x/ v, C# i
to update-local-reputation
( I' f% p6 M# ]7 H- p; x& R0 `& Hset [trade-record-one-len] of myself length [trade-record-one] of myself" e7 |1 \: d# J! x; {
# v( U. F/ v% m' R! H3 K
; q7 F' m! d1 d2 w8 F
;;if [trade-record-one-len] of myself > 3 6 ]# p6 p5 y, o* A J
update-neighbor-total
?8 J9 Q" e u' f6 z, a( i;;更新邻居节点的数目,在此进行
' S9 v# [$ [5 `5 q; k5 y* z ^5 S/ ulet i 30 g2 U* ^ t& Y, l
let sum-time 0
; ?6 e8 B/ C s4 |+ ^ Hwhile[i < [trade-record-one-len] of myself]5 y! o9 ?3 B: f, `- K) Y0 p
[
6 X' R* d) S( \& ]# \( Kset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
6 y7 ~. Q4 L1 r$ [. `* @4 f/ Dset i9 v2 c, P1 }) e$ M+ }
( i + 1)
7 n8 O& u8 m+ U4 q) |], { x5 F# D" ^4 I
let j 3
0 H7 q! { \4 O; ?* |( llet sum-money 0
+ M' s$ s& D w1 rwhile[j < [trade-record-one-len] of myself]
" w8 M! I1 R# ]7 H[) h- q( C& A# _# V* o) f
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)9 f! M5 Y- `4 n% e4 H' ~
set j
( o. O" _% i1 ?, n& C( j + 1)
/ v* v. ^0 W. q, a! }+ h]
) Q4 L, _* @- {, l1 Klet k 3$ @1 S/ D/ w% J# l/ \
let power 0! p6 z4 h$ \1 ]
let local 0! v* O, H, m4 Y, N4 o- o( e4 a
while [k <[trade-record-one-len] of myself]
K2 H W* y0 x4 H& Y& j5 a[
% j3 l; x+ ?$ f2 oset 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) 2 h2 a$ G- n7 K( m; S. G
set k (k + 1)3 {7 n6 W2 e$ R" _, s5 n
]
# e! }: U% y+ y4 i! c2 \ O6 wset [local-reputation] of myself (local)
Q" G7 ~" v' H+ r* Cend
. O- W# R" h ^# U+ |$ b6 j! @$ R
to update-neighbor-total: N3 ^" _* b4 z: q% N: Y
4 y2 ?/ k( N" K- ]8 }5 j1 X" dif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ J1 ]* F" d1 w M$ o% t# }- v2 ?0 r' B8 c, z' _
- U8 u6 a3 _* h5 Yend0 g: w6 g& G4 P/ O& D* P$ i
( s) O5 N/ o5 V9 j& }to update-credibility-ijl
5 {7 ?/ ]; n2 ^7 [6 C1 O% Q9 o2 y7 [
;;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。
5 R+ F5 p4 D, r1 plet l 0
% A7 O- \; g4 U" S! f( owhile[ l < people ]
1 b' u: e0 r. b# Q;;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
& j, g* e( _4 ?# D ][) d" I9 ~7 G% W M( q9 {+ m
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)* w' A$ N% V/ X' Z9 s. X
if (trade-record-one-j-l-len > 3)0 q9 u4 p0 C! I7 }- p5 o. 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-one7 o# n8 j. L ^* U6 K, `# @" X; R8 R' n
let i 39 u6 s3 L- h7 }# G3 W% \
let sum-time 0' m9 W5 i, i" a! b( p; k
while[i < trade-record-one-len]. z$ z$ O! e2 a8 K
[* ]- A% Q% O E. n4 |: r
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )4 G4 D7 K" Y6 W7 b% z
set i8 c5 a2 J9 ]! H7 a- j) Y7 ~% ?
( i + 1)9 H+ \* t0 _7 G3 Y3 I' L0 |$ ~
]
5 Q a, m) A# ^' Slet credibility-i-j-l 0: I: O: C. A O0 f, _$ X
;;i评价(j对jl的评价) V6 h, C0 ?& }
let j 3
$ @+ P& D, y& v( [let k 4
7 O# f; K3 V( [! K Ywhile[j < trade-record-one-len]! t; y7 Q) P. m# ~' H8 Y' H5 }5 A
[
, }% v7 ], k5 M% i" cwhile [((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
3 V0 F6 G6 ^6 b* Oset 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)9 \/ K/ j8 x g
set j
7 E3 O: a6 W2 L( j + 1)
( b9 j, L& n* L2 `* N]/ F7 @/ K/ \) {+ I
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 )); S p' r; h/ }) J- l4 w
+ i# \! W" c) i5 o; A4 t! h, @! Z% d9 B% B8 \. }, v
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); y% W8 k. W0 L) r- `; g4 d4 f
;;及时更新i对l的评价质量的评价
' g4 m- C# k! n# r7 E4 b. |set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]) X6 u3 c1 C8 A7 c
set l (l + 1)' K; J& I, `/ p6 y+ u/ p
]* n) [1 v7 a/ k }, s& o: s
end' \1 s, T1 v* j/ |/ c; e8 ^1 A
5 w; L. g( }6 U% i: t; s" [
to update-credibility-list, O/ x+ Y+ c% E0 @: |5 q
let i 0
( I' a$ r2 h4 g2 G5 Ewhile[i < people]" U/ S2 a! X9 s9 E7 ^& E
[8 x! s8 K) b: y, c: o
let j 0
2 f. V% f% Y7 q, slet note 0
& f& r( R" j& f/ x) Rlet k 0, T @7 s4 [1 ]' e- l: v1 e8 m
;;计作出过评价的邻居节点的数目& u" e# c5 h2 z q, s9 \
while[j < people]" V, L0 f; z- ~5 M3 u( O& [
[; x( v0 Y. @4 m# o7 V
if (item j( [credibility] of turtle (i + 1)) != -1)
' x$ W7 e. u/ I( h/ A# l;;判断是否给本turtle的评价质量做出过评价的节点: T/ {% O5 {$ m) K
[set note (note + item j ([credibility]of turtle (i + 1)))3 R' G- L# q% A1 {% S
;;*(exp (-(people - 2)))/(people - 2))]& a7 j I3 l c7 x+ S
set k (k + 1)
! Y; t8 Z$ G% F) h6 O1 p5 P/ @( h]
- j% y3 Q' H- F: y |+ Q6 _set j (j + 1)6 G7 y: {0 {6 K) ?0 S
]
9 I- @5 p# b0 @* j1 `' [3 pset note (note *(exp (- (1 / k)))/ k)4 K d- r+ m% U, o+ g, U
set credibility-list (replace-item i credibility-list note)6 T1 P9 O0 W' W$ M
set i (i + 1)8 V; d- |" j+ p1 W. o
]( S3 B3 a* g2 x9 ~0 h& ]
end
, _; y& @% T( B+ R m8 ^! e6 y3 G; l+ U, e: `* K
to update-global-reputation-list
6 }% Y2 t9 A( r8 Jlet j 0
/ }1 ?+ {; a# Y- G; O' A8 Owhile[j < people]6 Z8 a3 C2 d% s% i1 e5 }
[/ Q: R7 l4 r' x) r
let new 03 t8 q: p& z; H) P
;;暂存新的一个全局声誉
& p g) j. ?0 T3 j* k( |- `let i 0
, N+ p" T' j$ l) Rlet sum-money 0
! [$ ?3 J4 x, }let credibility-money 0
8 P! z! J! j9 H" ewhile [i < people]6 C- u p5 F9 B6 d; j* n0 H
[
/ ~# s4 z, Z ^6 Y. V: C3 m( Pset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
5 s3 M% b/ c1 e4 |9 eset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))2 B8 d8 o8 g; H+ f/ _+ `$ \
set i (i + 1)! h/ W- V! P, L" R) o
]
4 N C4 r: B; m! r1 p# ilet k 0. n6 K1 ~, y+ w2 m7 j- m/ e
let new1 0$ c+ V. u0 ?, M& r: o
while [k < people]
4 |, n" T9 d8 j& p[
0 r$ x- L! C3 F2 ]9 L& u A) ^. iset 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)* W2 O8 E+ E8 }1 @
set k (k + 1)
: d8 v5 R% p6 @( z. N$ ]]
1 d2 p, |* F5 S0 }( e, H$ @set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) & q$ g( ?4 J; ~& Y5 ]6 r5 W% ~$ [: E
set global-reputation-list (replace-item j global-reputation-list new)
' Q# m! l0 Y/ G4 l/ b$ a! Sset j (j + 1)( x2 @4 C5 W% ]# H+ ?
]8 f" b# H' j5 w, ?) ?7 G- e
end" P& [1 a6 I3 q* w, a5 a+ n$ k4 d
, Z, w# q% S& k1 _+ J/ k$ k: U+ `
( c; y, H) o4 N* r+ C/ _$ Y) P6 u2 V j# i# U
to get-color' A, X" Z* P( \& i, c5 J1 E8 B
: ^( X4 C- ~+ E/ s2 ?& ?3 v
set color blue
8 X, S+ X i/ V! _- p% h) Uend
! h. ^% u- ]# ^! _% V
2 K) ~4 K0 c/ ]3 c1 P1 Sto poll-class
; h/ X; N8 W3 d# u; L1 `8 }. f) Eend# Z. Z9 r1 l5 z2 C
/ \5 j2 T# Y" u* P0 x6 b( K+ v4 Cto setup-plot1
5 d8 W3 n: A9 a+ p" e' z3 k7 i5 `& k3 a, y
set-current-plot "Trends-of-Local-reputation"' Z4 `9 q9 @ ?$ v
+ m3 {0 K* t9 z6 G* u3 ?, R
set-plot-x-range 0 xmax
9 Y* K* _0 g$ i5 R' o, g% c/ R/ u- T/ V D1 w
set-plot-y-range 0.0 ymax
6 n' U3 f$ L0 x! P* aend# i* z* c, h7 O7 o8 H8 P5 t
" I. U ], _* w' o( N, l; K Vto setup-plot2/ V8 `8 e% z% T! _! ]/ J
' [6 b' {: S- y
set-current-plot "Trends-of-global-reputation"( \. G7 C0 }5 q6 y6 B( a% F& q
& A$ z1 l4 _+ J7 N# f u+ T
set-plot-x-range 0 xmax* t9 T0 x6 d4 b1 h' ~6 I/ Z
* g T' _/ U4 b4 u
set-plot-y-range 0.0 ymax$ v/ s# z* M* Y0 r& k$ @
end
5 k* q0 o3 A7 o6 d9 W
$ ~% f1 t4 ~! m4 j& U tto setup-plot3
$ D7 _* l/ L$ X$ ~1 }3 _7 a4 o
- c1 L. w+ L8 Qset-current-plot "Trends-of-credibility"3 I) h2 _7 h; t. T- d, D5 U) q1 z
& f3 @/ H4 |: h* Z' A4 a* r+ r9 |set-plot-x-range 0 xmax
* J8 R' U( W1 R' Q# [& A6 _& j* Y2 o1 E( S& l
set-plot-y-range 0.0 ymax- C$ {6 ^9 o! @3 Y; M- u8 y( J
end
; r2 [$ P7 o& T. m% E
C4 k4 D$ k$ b/ M" kto do-plots, H2 m, J! [; ]4 s
set-current-plot "Trends-of-Local-reputation"- n6 d7 Y h$ ~" Z
set-current-plot-pen "Honest service"
% k* B3 ]6 f* j& g1 J) I: z: Kend/ B- T1 y. @4 S1 R3 v* u
$ H3 t6 X1 P7 I; p5 D( C" p6 c
[ 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
|