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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8 T& [5 s7 w* T5 U- {! X; z v
globals[* b+ n: A) z7 s- n I, ^
xmax/ r2 F5 T# ?5 k- _7 c4 [
ymax) U% D) S: t6 K) L5 g0 b8 E
global-reputation-list
7 a% G& m* \6 j u& p1 S5 h, R; a# @! T4 P* {
;;每一个turtle的全局声誉都存在此LIST中
! B! |) z) |3 I1 [1 U+ A# Tcredibility-list. Z) ^4 {' ~) b% ? q! S
;;每一个turtle的评价可信度
, \% V% U+ @) Z" ~9 k t8 @/ ohonest-service) `3 t' e8 u; W0 C/ @; Y
unhonest-service
2 t- B$ g- q$ T; j5 ?6 ooscillation2 X+ U- P9 [8 E- p: u' I0 @( _
rand-dynamic
6 z, A! s8 G! Q9 G4 Y2 o" a]1 S$ A8 @6 H: W9 @6 C4 {. t
) @" |' ?6 B9 Bturtles-own[1 t; c! w3 B/ M
trade-record-all% u( R9 @1 H$ N) J' g9 [
;;a list of lists,由trade-record-one组成$ _& N. z: ^6 i, E7 V' e
trade-record-one( n# n) P; L3 N. A$ P9 S( o
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录, }6 B2 L* K) ]3 k, U
. I7 b: Y7 S: t+ N& b# ?4 p; o1 Z
;;[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]]
7 S7 H7 m# d: M- R9 m3 `8 V( atrade-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]
, e! P; C) U% ocredibility-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
" T$ W4 p7 W0 H& |neighbor-total
: i* Q" t+ L/ _1 C. N, y;;记录该turtle的邻居节点的数目
; s7 o7 d+ d5 P4 htrade-time
3 r; M) s7 K; H( C2 Q! F;;当前发生交易的turtle的交易时间
8 P+ }- K* L! I5 r& }appraise-give
7 m2 `7 t. D" V9 o;;当前发生交易时给出的评价# L/ t, O `' M
appraise-receive
/ ^+ N. P( R) \! M;;当前发生交易时收到的评价( W8 ], Z4 b4 x: d4 H# t' U% z
appraise-time
; s% w5 E. z% Y- V;;当前发生交易时的评价时间) @/ E& N- L; I
local-reputation-now;;此次交易后相对于对方turtle的局部声誉+ L- w& @' V. _' \, @
trade-times-total
# l' _: A' y+ m& s;;与当前turtle的交易总次数# P* }. |* f5 Y ?$ s+ R
trade-money-total2 l2 O3 v- H2 x! @2 A; m
;;与当前turtle的交易总金额
5 b6 L4 H4 n! E- V* b3 X/ Mlocal-reputation* s5 ]# f' R$ c* V' m
global-reputation
: _4 X5 h# `5 }1 Acredibility) w& F& T. z8 T7 N/ M2 w4 G
;;评价可信度,每次交易后都需要更新
/ `0 m+ F; v3 q8 k! m% `credibility-all$ ?% X9 W# W$ |, ~9 X% I
;;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
- A. D& S( F" D: d. }+ k- |% d: Q" B7 J0 Y% @
;;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
1 \* c: [9 |6 t# L. ~$ Y6 ocredibility-one
d) Q! v* ]2 \8 o+ Z1 d8 B;;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
8 u% t0 v; Q f0 j1 R8 \9 b, t" {$ }global-proportion7 a" o X! V* |2 z5 K& b9 j
customer
& X( o. _2 h2 E* T7 }3 ncustomer-no
. e) o: W( N$ l# N' W1 ltrust-ok
0 p5 p {9 W u) f Ltrade-record-one-len;;trade-record-one的长度
) V8 B$ q. h5 r' Q]' i4 u2 x- n9 [6 c- C: J4 w
1 k0 j) b6 h! B* B4 X$ E6 f; I* V;;setup procedure. ?7 A# n' \) P ]- z5 |9 g1 w
; o# V# @' l0 z. G+ Y
to setup. i. M5 I% J5 H7 B6 D
. r: A: d7 |. [/ I6 F( W
ca
2 z0 J3 w, l$ h4 a% \, l( G
! R) n9 [% I e( `! qinitialize-settings
. [2 J, N0 [0 U' F2 G6 K8 y$ h) G( u! [9 m( D+ U
crt people [setup-turtles]- _; c1 K; I! k) l
. a9 s6 R' d3 n/ treset-timer2 E9 r" I& k2 ]! i% {
, j6 T4 H( }! a2 w& j1 S
poll-class5 S3 ^7 s( ?- Y4 K' w/ b
8 X9 ~9 ]2 ?: E8 R; o' esetup-plots
. s' O2 b" X* H; C8 w9 t E* N: N' q, t6 N! L1 o& e
do-plots
& @" S+ l+ @; _! M( s+ Lend+ r' }% F4 u. q. T
: ^- O7 [7 x3 y$ k3 y
to initialize-settings
, {' r; K. ?% n
% A$ l P: V7 k, x; d9 qset global-reputation-list []: Y# Y: O2 ?7 M+ _) N+ b8 ^' z
7 T2 h4 Y P) e2 A4 xset credibility-list n-values people [0.5]+ R1 {# b( _ ?: F! V
. e/ o5 e$ X1 g& ]2 A( H
set honest-service 0# y; \1 Z0 Z1 k5 s; j
: {* O+ A0 r' Z/ |
set unhonest-service 0* S5 L! I; s m& y r3 v
+ l6 x8 q5 ?: S, m: zset oscillation 0
$ D- A9 ]0 z. i6 j) [8 y3 X9 }
" `7 y8 q" Y& jset rand-dynamic 07 E5 K q Y2 a; h1 T/ \/ q6 o) A5 D
end/ O8 c6 l5 k5 }- A5 T% z$ w" {: O
4 \' y+ Q5 g: [
to setup-turtles
; i* \8 I- {; d2 |3 j/ Fset shape "person"
) I' U2 N0 K0 k$ Ysetxy random-xcor random-ycor
% K2 h T7 P- gset trade-record-one []
# ~8 G" m6 l7 _9 ^. Y8 l6 \* u/ p: }$ K$ Y8 @2 {6 i, h P: O
set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []/ v( q' Q! C' i( p- r$ O7 Z
set credibility-receive []
) H8 n* L, C$ Zset local-reputation 0.5
+ B. E0 ], G0 y9 C( X6 Hset neighbor-total 05 g$ ^1 ]9 V/ ^
set trade-times-total 01 z" D4 Z5 o, V; @$ r) o
set trade-money-total 04 u( k& r8 R9 o! S/ Y0 _
set customer nobody
) `3 c, H- i' X! mset credibility-all n-values people [creat-credibility]
1 ~ y9 h0 g6 X- q. ~set credibility n-values people [-1], w/ f# ? @ M5 ^
get-color. l" L* G) {5 e$ J) H
) i; F. D5 k& Pend& c9 i) }+ S* _. O& W
2 n3 t7 Z" L. D/ ^$ v# ]7 Gto-report creat-credibility3 ^9 z( y+ G( S" h
report n-values people [0.5]
" O& t; h J% c" y0 o3 jend5 E, i9 Z g# b! Q* a/ X( a/ X, \
8 f" c: ?( _6 \5 Eto setup-plots" r, n2 y( W8 i% |- R
, E3 ]' P/ ?) |+ Y$ a
set xmax 30
$ c: H1 L5 A: E+ I! ~
: \3 n# L& n) U8 l6 _3 Gset ymax 1.0( p' o7 G6 n [: G" ^
+ Z4 T, ~4 m" U; ~clear-all-plots o0 ~) o( D( \: r5 ]" f
) V. T' p4 n0 R0 i l' b7 @setup-plot1) v; E9 F+ P! q0 \+ s+ Q2 r
8 K( I. w$ Z- G! V5 g# z
setup-plot2
+ A5 o) H- ~& h% @* H
8 m3 P% p" ^: i9 @; H! D7 n0 U/ Isetup-plot37 T2 X' r. m3 D3 X% w) V5 C7 L
end) D8 w) B/ A0 `
, c( d4 \( p6 w, s
;;run time procedures9 G% L/ o& x) ]# D# D
% v; V+ _( v+ C0 E9 N! ]to go) T7 k5 X$ k- y: f8 V* @
# G: y( h9 p |4 S5 Gask turtles [do-business]
5 m; o( r8 d7 W1 z9 [end
6 O0 S- r- P( `: W
& V& R3 u4 W# V9 [2 nto do-business * A, {7 \1 Y& d: ?0 q6 O" ?6 M
$ O1 `& y" q( A( W: i3 e
9 g. S9 o0 w% O' |! Drt random 360
2 ^" H1 z$ o- G0 G$ V# s/ ?) z- P0 f
: K( ]: G( n B/ g* ffd 15 z4 b3 p6 t9 S0 f+ U7 _5 ^" M
; ]* M m2 F/ S, N- x0 g1 E) n; {
ifelse(other turtles-here != nobody)[
o/ {2 V! N$ g4 l5 K& R/ j; F( Y0 J; Z
set customer one-of other turtles-here
0 X7 ?2 ]; H/ I' V; H+ M* r( }4 Z* ]$ w0 M. b7 p0 W- M9 W2 X( |
;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
6 f$ Z2 ^/ X4 b( y b* h( W' I9 n[trade-record-all]of self
+ w t. r2 _2 A j' };;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self' R3 `0 F/ B# H7 A& g& s5 Q
; v4 |0 S& g/ C# w8 I- xset [trade-record-one] of customer item (([who] of self) - 1)
0 S( a7 [: o4 q" S7 q[trade-record-all]of customer
# O; q0 c, V& w" |5 b5 Z
9 k) o# ^4 A) M$ Cset [trade-record-one-len] of self length [trade-record-one] of self
& G7 s& n1 x- P: R8 Q
$ ~: X6 H; i5 D1 b2 Gset trade-record-current( list (timer) (random money-upper-limit))
0 l2 S# @1 i, h- }5 f! H8 a$ c( N J
ask self [do-trust]
( f, h2 U2 n. x. R4 \* }- w. k;;先求i对j的信任度
" {% M+ [$ ~1 n. {7 i' \* s) F. q! a3 ~, o" `5 p
if ([trust-ok] of self)% f* k- P$ w' A% m( q' \
;;根据i对j的信任度来决定是否与j进行交易[
1 U, {3 ~& |4 x% x& Gask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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1 a Y6 Q% F3 H6 h" D& f[
- V9 W# Q" [% ?3 D& c5 h1 u
! M7 D; E5 h$ M3 Z6 Ndo-trade
t4 j+ V" u; g& f
- A f5 c/ [# o$ Y3 mupdate-credibility-ijl
6 P: I, G% K4 `5 q. a+ G$ W
- _4 {; d3 g2 V/ `1 ] Kupdate-credibility-list
( o$ v8 F- m3 V* _7 d
3 ^& s1 f" }- z, R( ?' e: E4 W! t3 i- j# B! u* W& t
update-global-reputation-list5 D, l" g9 }' K1 I
* G: h. W w* N9 \0 U4 ppoll-class) b. Z8 Q! T+ q6 e: H6 E* `) @
1 g1 L) n7 G, h; u7 ~/ O. ?
get-color& V' N- e$ ?3 v" t+ |; c @
/ c' ~, X; X, @5 @ ~' F
]]
L5 }# z! s) W# G; W1 C
8 J- x7 [0 |7 t3 o: n$ |;;如果所得的信任度满足条件,则进行交易
6 p1 k* M$ C% T0 p* s: ^ q, v! I9 N* u2 j+ r1 z: G! Z# w8 l
[
6 C T2 O/ G. @ u' A, p4 D3 I p, q$ R
rt random 360
5 D; S7 V: ?9 ^- a. }, O( C5 b. V; z# o/ P* K
fd 1
" ]# s+ |9 X/ J% j5 @, G0 A( F# @$ A9 T) a$ G- j
]3 J0 s. \4 P7 F
' V& Q* q5 N4 W3 U: Lend
* L8 d# G; ^2 |( r
; }4 q& r. O1 ]3 Q7 cto do-trust
2 G2 ?# V: j, F& [set trust-ok False; h& y& v. T- t+ Q! X! S+ I' H
* m( T( C4 f! e! D0 j0 A0 [7 _% H2 @: X' O; F/ M/ K; W
let max-trade-times 0
# }3 f! n3 U* n# C* ?6 U- M* hforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
' ]: C5 ?# l5 u% Plet max-trade-money 07 i! S8 n$ R+ b0 I. \
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]: }6 | O+ T* E& H" I3 c1 h, F
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))& q. }0 t' P0 X/ n( m. K
# W/ }, |- J, t- m7 W& [% L; R0 Z% K; M! x/ j: {5 h4 I/ ?1 \
get-global-proportion
! M' h8 x& f" e# b+ F3 b7 ~let trust-value
2 G1 ~# _4 G! |5 c3 Z- s3 Tlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)/ V9 y, g2 p: u
if(trust-value > trade-trust-value)' I- I2 g, i5 o: T
[set trust-ok true]
; g7 M4 |" R$ t+ l9 ` \' W4 Uend
8 K) M8 W3 q6 C6 I* @9 s
) P& b" g: {( O, G J6 ?3 W4 fto get-global-proportion* ~& a3 T8 O. N, ~. I2 F
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
, @. h) L) A* {7 M8 s[set global-proportion 0]
' g0 T: d/ n5 a8 Z[let i 0* K7 W2 d1 t/ u3 l+ c, n
let sum-money 0! H R* v) C- h+ a" a2 [
while[ i < people]
$ N# Z8 l4 T5 a' F2 A+ c) E/ t[3 t: I% l! a) u) E4 h$ Y5 x
if( length (item i0 Y$ Q( T/ B4 L8 R1 }( C5 Q
[trade-record-all] of customer) > 3 )& E4 t% w. N* m* o0 N! I9 U
[
& @; C* B' P4 @) o% p+ P5 e0 V- z) Mset sum-money (sum-money + item 2(item i [trade-record-all] of myself))3 R F2 g/ e; { e. z9 p* x
]: z' X% {, G5 f1 r1 @+ F6 Y+ v
]
- c" G* f( z6 }9 u5 Jlet j 0/ z: G B' H; F$ n- F! z
let note 03 G% U: B& G9 O( d7 Q
while[ j < people]! t- i$ c$ Q/ A3 E4 ]
[7 {) r" g1 J+ Y& U0 m
if( length (item i
8 a* _- r; V1 ~* U! k[trade-record-all] of customer) > 3 )6 W2 u! B9 [/ [3 [
[
0 a1 B# p6 q6 s+ Difelse(item ([who]of myself - 1) [credibility] of turtle j != -1); ?6 y+ a Y, |$ R, ~
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ E0 K# _ u7 _+ W) A8 P# D/ }[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]- F% }9 q S7 A' d; A
]& m; m* g' A2 {6 L
]) _% b* Q& d5 t7 f
set global-proportion note
! }8 K$ e6 L6 q! }]
) h" [( i8 l1 n, ]+ b6 l: ]end2 l; q( s8 c6 o6 l- Q' x/ M, K
) o' _6 l$ N, x# }6 m8 Z- ]; nto do-trade
* e2 n& z* i. v, w- X- O. M;;这个过程实际上是给双方作出评价的过程6 N+ i6 N1 u X; L; U! C! R
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价: s( |2 b# N: N% `1 g3 }; ~
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价" b$ }% L7 H, ]3 a) _( x; l3 X/ w
set trade-record-current lput(timer) trade-record-current
% y1 K" n+ E( G7 [1 H7 T;;评价时间2 p% V- @7 v% O; m" y! U: \" s
ask myself [- W: d' \* {5 `/ [+ u% y
update-local-reputation. B# y4 _9 e5 J+ Y+ U& _% X$ f
set trade-record-current lput([local-reputation] of myself) trade-record-current
" E6 V3 I h/ n% m0 {- x% `8 p) J( s]
, t9 G2 Y2 X/ S' H, k2 Q) K0 J' N& Tset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself" R/ A4 ?# M( C0 E! h! T
;;将此次交易的记录加入到trade-record-one中: _) [, H4 F; r7 W2 Q* y8 O
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself), r: w8 u4 F# ?( E7 I, C+ J$ p) ?: o
let note (item 2 trade-record-current )1 L, d# O: u9 Z2 ~% h
set trade-record-current
3 C9 z8 H1 Y3 S: z(replace-item 2 trade-record-current (item 3 trade-record-current))( u+ R6 z; c# j% P- l
set trade-record-current* @5 w( k" w& u4 ~
(replace-item 3 trade-record-current note)5 A) [ O0 e1 R0 r. d3 ]/ ^, r
3 c) W) N: B7 @) Y
8 {% G. k' f0 V" _- \ |ask customer [; X' e5 t1 ^0 r1 \- W; p
update-local-reputation9 m+ ]$ j7 g. @" q$ Q
set trade-record-current1 J+ s1 P: t* t# w# p3 ^9 c
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ! T. e2 k* M0 F6 H- Y
]
5 g6 l) z X5 f5 ?+ q- B* q' V4 h& g# L" k. l' J0 W0 Z
, z. v' p" L+ d* V, S2 z5 t
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
. P0 n2 l4 W) ]+ H3 \9 l$ d, v% V0 d
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))+ P- ^0 q g8 d
;;将此次交易的记录加入到customer的trade-record-all中
( \( n# T: J7 g3 H& i* hend4 t$ Q6 {+ i* W/ v& ~, I
8 r! U: ^, i; @to update-local-reputation$ v9 k. k& M p0 M% n$ W$ \ |
set [trade-record-one-len] of myself length [trade-record-one] of myself
8 ?0 p% x: w) f7 f
& z" Z! x- y$ r; D$ P6 ~: T& x- q/ O) t) l. E2 q: A/ c
;;if [trade-record-one-len] of myself > 3 ( s) x5 i8 a' }/ q
update-neighbor-total
: E' u1 Z* N* |. O;;更新邻居节点的数目,在此进行
5 V% y( @4 ~' o1 U9 u, z# }' s: b* ilet i 3' p X* G" S, l: x, R! Y) M; E- {/ F
let sum-time 02 l! k! v" W2 y* d3 C
while[i < [trade-record-one-len] of myself]: u, M6 b N* b7 J% ~1 f# N/ y/ s
[; E0 U- _$ N$ _$ k7 H% X! B" N) t- I; {$ y
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )5 b. a4 k. s j5 i& J
set i. S* D) E. H5 h+ n' q
( i + 1)! |) ^0 P: {/ k+ t4 h( B, p1 d+ \
]. D# U0 v+ r% x+ k' ~% {+ j
let j 38 D- s& e6 U9 O I
let sum-money 0% R& l& h+ J3 h' t
while[j < [trade-record-one-len] of myself]. l1 C: B: f/ D. `" Y w
[$ G, U# G0 k: I& T. S( J
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 k& R3 a+ O& N. }5 k, \set j, B7 `% ?$ i8 ^5 Y( f+ w
( j + 1) ~% s+ o" {! c# G
]
% \- j" W' \9 Q% A, Y; `1 M5 X6 Mlet k 3
8 K; K" x. j0 m: w/ l4 rlet power 0
9 U4 D: ?% k) O4 U7 r! }let local 0. ]0 H6 Q0 Y- J+ [: v2 w3 K' W
while [k <[trade-record-one-len] of myself]* z' ~$ ]2 Q5 G4 p ~
[$ u% p2 j& L2 Z6 O# P( l1 B
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) 4 y# K; L; H9 |- x
set k (k + 1)
2 t2 Q4 r: V& Q+ |+ m$ E. p]
, B7 i G& C# U8 Y3 [set [local-reputation] of myself (local)
3 }* V( S( `$ _9 Hend3 @2 A: {0 d- c* M/ n# o0 n! t
6 k3 U) w$ J, M/ p+ w3 o8 I# Fto update-neighbor-total
4 D2 H A1 U1 o9 O; W+ ~: A8 ^9 T, k7 P, u' T
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]' B7 [0 z/ M3 L: o {/ ~
1 w% A$ ?, H; Z5 O/ d3 w
* m2 W* L* p7 x1 ~. `$ u, rend9 o# }) |) M1 p% K9 X4 `* Q
- ^3 s8 r1 X s) P- Hto update-credibility-ijl
, u8 L: M( q' v" E- o) B5 t& I4 S F. Y$ o: 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。: ], X' z8 C$ e! c
let l 06 Q7 r: Y: j6 x, T
while[ l < people ]
@7 q8 {# U: C/ f; n- Y;;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( K/ ?2 l8 H- S8 }9 g
[
+ F6 [1 j$ i8 R. _- A' T4 P6 W5 D3 Llet trade-record-one-j-l-len length item l ([trade-record-all] of customer)" d2 e- y: N$ X! v+ Q8 u
if (trade-record-one-j-l-len > 3)& K. h# B; C0 Q: H
[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" m2 o, ~- h( j) G+ @
let i 3
2 j8 e M5 p: w# f- U% ^let sum-time 0
, H4 L: W2 `) F4 H( Lwhile[i < trade-record-one-len]; c0 d1 `! c: n$ I0 ~
[
, |- V- j- D$ \2 i% N+ Y Rset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 f- X6 K+ p( b/ K: I6 [) H `set i
, p% Q% Z1 z4 |$ M2 w' I7 r" r( i + 1)
1 X# M" l) B/ \$ n, V( g]
2 }( d4 L& ], Q) \# Klet credibility-i-j-l 0
* n" t$ I6 O S; k( _;;i评价(j对jl的评价)
+ G7 |, H s6 h- z; C5 u% Slet j 3
+ q% k0 G5 x3 f3 _7 E. B# j8 Y9 {0 rlet k 4
0 P2 S* C* a) T0 F4 |' k Q7 wwhile[j < trade-record-one-len]
0 k: T# J; s- }: I% q[6 H6 r' b+ C0 e% ~1 c
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& B, K3 k) ?% ] U& L, T' |1 D, [
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)0 Z1 K) k2 u7 Q m7 v
set j, |. a ]( z; m
( j + 1)
5 s9 g' P% d8 O]- }7 d. b0 j8 Z/ T2 T* m
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 ))0 m. O) q% P6 ~7 x8 g
- A9 S4 n9 ?9 ~6 j0 [# p, x$ G& g \6 E; Y4 ?
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))2 z2 z% A5 X5 b5 N
;;及时更新i对l的评价质量的评价
9 o3 M2 p) C9 y: Wset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]1 ^# U1 \+ u* s! C+ p3 _( L
set l (l + 1)
0 U9 e. p% c+ r2 J: G. T]/ T! H6 W# g& r- c3 L) T+ y
end* X4 N9 j$ o" V) J' N1 ]2 q
8 j$ `. M; ^: U; B6 i
to update-credibility-list% u6 {( T. |% P! {
let i 0) R; n5 C: ?- b* w* K! s, t
while[i < people]( `8 @- P ?+ b0 G
[; {1 ]# y' m; i) R( A
let j 0
4 ^/ Z4 P s/ Rlet note 04 p/ X5 V8 ^8 {5 y8 T$ b- ~
let k 0
6 Z. d N5 S" N G) m. {;;计作出过评价的邻居节点的数目& q& B) H" Q! X( L* u* h# K: K/ H
while[j < people]
% I, n: v; n' a[8 q0 B. |: a, W* f( ]
if (item j( [credibility] of turtle (i + 1)) != -1)
9 Z {% f/ o& Q" V% k7 Q3 S k# b;;判断是否给本turtle的评价质量做出过评价的节点
) B/ `7 r4 w+ R# t% B- j[set note (note + item j ([credibility]of turtle (i + 1)))' C( d7 U+ ?5 [1 i% _; L1 R
;;*(exp (-(people - 2)))/(people - 2))]
; N x* T; V$ k9 g' |set k (k + 1)( o I% q: ]9 Z: W7 P9 n
]
2 D: b5 _7 L7 O! N9 G$ E# ?set j (j + 1)
4 M$ E1 f% r( q0 x8 P7 W& q7 ~2 }]: l. u0 @( P5 ]# J) S& c/ z8 a
set note (note *(exp (- (1 / k)))/ k)- ^ g) ?+ c8 M+ u' p, Z
set credibility-list (replace-item i credibility-list note)1 a' o* F, g7 S4 v, n
set i (i + 1)
2 @- N0 }9 D5 {; f* z! p0 a! c]
6 t( K Q2 z ^; S$ Vend
$ f9 z) o5 J+ |! L4 i* N$ S! E) `+ Z0 d# O1 V. [3 r
to update-global-reputation-list) d( H1 Y& y: m& ?+ i9 G
let j 0
( s# \/ z8 U- N k" f p0 ^while[j < people]
+ k+ B% u) O& y: _# b) }+ j* R( k1 d[
3 O5 S r2 r4 A$ T. ]+ O- Ilet new 0
" J8 X: m+ M# n' q3 G/ \7 A7 x2 O1 T;;暂存新的一个全局声誉
0 I: y6 t2 u$ ?let i 09 U8 f F' F4 W! Z
let sum-money 0
/ L0 A9 f0 r5 a4 }9 rlet credibility-money 05 X. j N8 b; b% ?
while [i < people]
5 N0 u. x/ ^/ n' b[# _3 }2 ]* K ^4 [ M8 X
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))), G% E$ B" x( A# ?+ E3 X- P
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)), c$ X; N: h9 [6 v/ u/ B
set i (i + 1)- b. w* ]6 |% A( Y$ L' V. k
]5 N$ o( \. c8 v7 R- x* @+ }& h V" c
let k 0
& E+ p0 o) ~& Z }3 [( w% Clet new1 0
& H) h, b8 k: ~9 [- Pwhile [k < people]0 r. L! @' ^; i1 }; h
[
' v, v9 X5 x. b4 g: Mset 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)
( U# P( h! h1 ]" \set k (k + 1)
k; |0 \" ?6 b( l: z- N: g T- d! q; S]. N- [) C# b, x4 t+ i
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 6 \/ h; k, y6 L0 R
set global-reputation-list (replace-item j global-reputation-list new)
& e4 }8 U* I3 n* x5 Eset j (j + 1)
* a3 ]; _$ m7 a8 r5 F]
4 Q% w0 l: e& _0 aend8 v3 _$ j) j" e Z1 {6 F
2 R3 W* e$ s; V: G: M R* G5 R4 x e6 o g
8 R" ~7 I8 [- Y" J' k
to get-color
4 ~/ e1 q, B4 A& O
9 r" [. w; _% S, qset color blue
$ h! {2 r" E2 u1 q; P0 |' s- C$ r( Bend6 T' L( ^0 m( c3 |& C& L( H
, J9 o T7 w; S; t. Jto poll-class
9 ]9 @: r* h" T# Z# \/ i3 I& |$ gend
h( {! |! g4 _' ^) I5 ^0 L$ [$ v& p
to setup-plot1
& T8 G6 a7 v6 z. S8 j0 a* F9 X) _( ~9 l: ]" O9 y7 i) D- x
set-current-plot "Trends-of-Local-reputation"
& A: u2 n2 u; O
% M. c& w+ E, g; A# cset-plot-x-range 0 xmax5 b' }4 L4 b8 i& d
" p4 M2 o7 E; n
set-plot-y-range 0.0 ymax
" A0 o4 T* g4 U) X: Xend* A# \' J7 G( d
& V' ^0 B- j. \- o$ s" j9 I* _
to setup-plot2* v% p0 S8 f1 n8 P
( t# o, y# K, G5 mset-current-plot "Trends-of-global-reputation"
9 b% C- R: E; {& r/ x+ `3 H8 C6 S% m3 F" s: A9 O; u- `
set-plot-x-range 0 xmax
M- o; h% ` J! |6 N0 \( O/ R6 k' r0 s* p2 l+ U! ?. Q* n
set-plot-y-range 0.0 ymax- M7 _! A- g2 s- v# Y
end. o# m: k8 i) }, [( }
* j3 [( k( B3 d3 |% y/ ]9 H& zto setup-plot3
2 L6 W4 M3 m# b K9 D) W8 o1 _6 G/ `* R" p7 L* |
set-current-plot "Trends-of-credibility"9 f2 ], e4 C% D3 ~% n
- N1 c! Z' B/ Q
set-plot-x-range 0 xmax
0 \# ]+ t# c5 ?: F% Q( S% V+ U* X% H! i1 l4 {- U8 O
set-plot-y-range 0.0 ymax9 q! d+ h! y) Q x; V" S1 b
end
) z. x) ]" l) N, @) W7 K# {, q" T2 j% Z2 j. t! H+ {
to do-plots7 P/ k W0 g# g0 X( S) a+ I
set-current-plot "Trends-of-Local-reputation"+ s0 W% v0 s7 a" A: X7 k7 g" |
set-current-plot-pen "Honest service" P; B- @+ N$ u6 }1 Z+ S; @ n
end9 E- L; I7 }1 A3 C/ Y5 X
+ o/ E- N% l) E& A$ ^$ b5 A( E) c
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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