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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
( q3 l: l" t: p Q) A0 W- Y* [globals[
+ P$ x. i$ o1 C( S( Y$ lxmax5 p7 o' j7 t. h1 [. d
ymax2 _8 I$ l$ i4 g3 [4 G
global-reputation-list
, s. G3 `; D: {8 `1 L- g
$ B: k, @' j7 X7 i1 ~5 j;;每一个turtle的全局声誉都存在此LIST中1 Z3 S: A7 A2 T
credibility-list9 g3 X8 U7 k1 t" [+ Q
;;每一个turtle的评价可信度
: e1 O. }4 [* U: b9 Ihonest-service
. u0 O7 s4 v( lunhonest-service# O/ C8 Z4 \, r# R8 L. }
oscillation
, m- W* G5 H: krand-dynamic/ k7 X: i8 X5 m. W
]
; {0 B/ p8 w$ {. R
7 _) E" E) v' T2 X. Eturtles-own[7 b/ m$ ]; F5 J/ g8 s0 F! P
trade-record-all$ b& |) o6 m- g2 w2 W: r
;;a list of lists,由trade-record-one组成8 @% G- \) N# U8 S. ?
trade-record-one, O7 t9 N7 h( d( e: H
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录* _4 d" {" R' r$ B' B
- b8 d2 t4 D9 F" 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]]: q/ R) s* ]! z2 w( k6 p
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]5 b& U) g* ^+ h) t
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
& l' s d" T% _neighbor-total
$ P. c4 l: [0 f$ s; O3 g" n5 o;;记录该turtle的邻居节点的数目
1 _# T; v% w) ]4 u" y2 E7 strade-time! }, ]. s+ C5 ~; H" V
;;当前发生交易的turtle的交易时间9 x5 B5 m! ^! n; \* N! Y
appraise-give
% \: {- V' x2 Y$ a% M; d3 I;;当前发生交易时给出的评价
+ B3 n* e& A+ N( N$ L" ?. \; W5 cappraise-receive
+ I( u2 n$ s: c" n+ Q" G( t: W. `;;当前发生交易时收到的评价
1 R) l% A, |. [1 Q {( ^& Jappraise-time4 i- [1 C7 e) N' S
;;当前发生交易时的评价时间
! W3 Q+ o+ E1 R4 b* B; Flocal-reputation-now;;此次交易后相对于对方turtle的局部声誉3 B8 x- c2 N; o/ C
trade-times-total
% E4 ~ P% s1 G+ c! M2 A;;与当前turtle的交易总次数
/ z K1 k9 F& q: i) U2 [9 r5 [4 Ztrade-money-total
( _! b7 G3 D y! }$ _9 P9 a+ H4 ]+ K3 g;;与当前turtle的交易总金额
6 X- G" y/ i. x% f& { llocal-reputation
4 r$ J, `. l; j' Yglobal-reputation5 j' ]1 R: X, o3 g. S% i
credibility, W; t: R8 W, s) V6 m B1 ]( _
;;评价可信度,每次交易后都需要更新
) P: l8 S8 U2 E# B: fcredibility-all
( C3 j8 K3 e, _; K;;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
) ]) h$ b u! J4 |
5 @% g; P- w' @5 [9 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0.50 X; `1 X3 u N% c
credibility-one
- }) z, d# Z R2 p. A) h- |;;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
5 [; b0 s2 v: S. ?, mglobal-proportion
/ |% `( \! @3 I2 |customer& @, g. r3 ?; r
customer-no8 K7 C1 ], t8 S5 M, ?+ M
trust-ok2 a; \, [- ?- O: O
trade-record-one-len;;trade-record-one的长度" M6 e [8 ?: H& x" ]" Q" u# p. w
] q' k, m' {7 J" j. u
% M, j% o1 A$ }2 |;;setup procedure2 m; W# O) w- \* z! e4 I, ~
* }$ \+ D% k% S: x' Vto setup
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ca2 t9 K& o7 o8 ?2 d5 C# J
- b8 B5 O6 p6 A8 G" Oinitialize-settings
) [9 u+ R* V1 M4 |1 C" E- b
! g1 t! J [( {1 O% ^crt people [setup-turtles]
; q5 U% H9 M! K. V- ^" T
a3 x4 f% @3 N+ z2 Freset-timer5 z* A5 E1 n5 W; C/ n2 G+ q) n& A
0 l3 t1 |1 ~% x+ `- bpoll-class; h' p N2 X$ l8 i$ x. H
X5 t9 H. g* r: e \$ `$ Csetup-plots
/ C1 }: Z+ m# K2 C- ^
3 ?. Q ?, n4 y3 V0 K$ ^% n3 cdo-plots
% m6 {" {" z- i* c0 }end$ Z' C1 r" U3 C6 g
# }) b, Q" O. ^# Cto initialize-settings
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set global-reputation-list []
; Q4 E( q, I: W& \4 z/ l/ T& l0 m1 M/ Q; M+ K
set credibility-list n-values people [0.5]# J; p9 y. ]7 T) I! |* y) I& t7 O
4 p2 V# |, C& ]/ v. L/ B3 j
set honest-service 0$ I" X7 M B( V |4 V& h- D/ D" n8 C
# Q1 @* c; v% `% S8 c
set unhonest-service 0
- {. ]. {1 W- o& Z9 b) o/ T# t' q; G+ ^
set oscillation 0
9 E$ ^6 Z( W3 ~9 h5 N9 Q
* m0 m; d# y7 Xset rand-dynamic 07 g' u: l( O9 ` f$ n
end: u9 k7 C- A; I" i
4 E2 F5 O# | w4 T1 v6 P% w$ k! |to setup-turtles ' |$ Z8 z4 w% R2 _# T8 ?
set shape "person"
F5 K7 D) e: I) `9 msetxy random-xcor random-ycor7 D2 a2 C( y0 e- c4 {% ]5 O
set trade-record-one []# \ N! K3 O2 U" S. Q& A
+ t/ L- K" a: ?* x5 r }. H
set trade-record-all n-values people [(list (? + 1) 0 0)]
! u5 Y/ [! g3 c, B1 F0 D5 x# f. l! D! Q; A, g. j; [
set trade-record-current []" ~- B3 p+ h9 g0 k: M: H- I
set credibility-receive []# i0 v) H o ^5 X: g, y" d0 l
set local-reputation 0.5/ O' B! |% q# l" W9 m
set neighbor-total 0
6 A6 ]/ y1 Z& q1 l- L! ?9 c- {' Bset trade-times-total 05 t- l# @1 r% L& s
set trade-money-total 0
( ?& o3 s9 A; ]# T9 Yset customer nobody
' ~) s! _4 H2 eset credibility-all n-values people [creat-credibility]
. n$ b) w. h' s0 iset credibility n-values people [-1]
- \/ _8 b8 h, v, v4 \9 I4 f7 f; mget-color
' N% k+ C2 V- b% d; X
2 }% q+ p. l9 J7 v6 {. `8 d' N1 vend
/ r4 H7 p7 f! O) Y* ]5 q: X5 c. }/ {
to-report creat-credibility
: _$ j; T: c8 H+ k* @, oreport n-values people [0.5]3 H4 ~ f; t v9 y5 ]3 Y
end8 s3 {9 i8 H1 t5 f2 M1 D
4 b; Y" E, P! K6 ^% Q
to setup-plots( R7 v. ~0 J' {, l7 N# V
" O: A6 f7 d( [8 u* D. H+ ~( Dset xmax 30
4 s G7 w4 |6 I, Y7 m4 j: A
) N/ j: c2 c) a! q( R, N, F% tset ymax 1.0
. n4 ~9 Q6 X2 j
% d$ @5 C" T3 ^: G% iclear-all-plots
% J" X M( N( R5 Q1 `: x$ f' l" t! C3 w7 A+ D! K" k
setup-plot1- o, F5 p8 X; B; A! r1 }# k# l
3 O8 R- i% U8 v9 y0 l, n' a esetup-plot2' F5 A) j! @* x( U
. g3 R/ c" k% b* r) g( {% k
setup-plot3
3 b$ O2 A) s! ]0 B# J' |end
& L9 _$ c* A% i/ Q, b
0 u9 j: F x5 D* @ O& O) u;;run time procedures# d. t# F3 p4 |7 r Y
2 y% O( y* [, U; e1 C4 r5 R+ H
to go
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ask turtles [do-business]
- Z% ?, Y l# N9 k( s2 B. r3 H: yend- m) w \* b: u. ~9 P
/ g) |5 H9 E9 d( `! ~# z7 k. h+ X
to do-business
& r: Z' S* N/ c/ U
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2 r+ `* {" q; C! U5 ~( e, grt random 3601 F8 B/ B$ i9 u! B- x
' h, V% v$ y& h8 R2 Q" [fd 1& ]' C l7 ?. L$ V) r1 J& q
4 B2 i3 `+ {8 S) Cifelse(other turtles-here != nobody)[# {/ N- Q8 D3 j
0 [) I) t3 z( X
set customer one-of other turtles-here& u" H9 w! L7 i! }* W
2 b4 t s) I. `( p/ w, H
;; set [customer] of customer myself
2 o' h1 g! U0 [
- \4 I# G$ q( j x9 J2 x/ @* @set [trade-record-one] of self item (([who] of customer) - 1)& x" ]& }8 K4 ?& |# D0 [% U
[trade-record-all]of self. b; `( R$ R1 [1 V- E% u* ~
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self: l& G3 R/ B, Q. j( m4 |( G
. { E, Z' w9 e, p! jset [trade-record-one] of customer item (([who] of self) - 1) p& S1 [7 U Y; Z! V. ~
[trade-record-all]of customer6 g, N! v9 d7 v; f# h, _) N
4 q1 {+ r6 p) z) `set [trade-record-one-len] of self length [trade-record-one] of self. H: I- |+ f, |$ p
9 ?4 W% w8 W5 K" e( g/ d( `0 Y
set trade-record-current( list (timer) (random money-upper-limit))& {$ V* e U- d5 g# G$ K
5 b2 a9 K7 F d) Task self [do-trust]
7 A. w9 t0 Q7 D9 @;;先求i对j的信任度
" n6 e# x/ } v9 j2 O( i1 H7 p3 g3 f6 W& l9 _7 k0 y
if ([trust-ok] of self)
) ~+ B) K5 z5 Y2 r) `;;根据i对j的信任度来决定是否与j进行交易[
6 v. ]' g: m& N, a% d9 R# k6 Hask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 R8 M; p2 |+ B# P2 E) {
" v% c/ E, N, b3 z9 Y C( `
[% o( ^2 T8 J5 I; h
% T) b& O, F& `/ s9 Ado-trade
. [/ w7 {1 X. @# a$ w; s1 H, v( ~7 ~3 S% f+ a3 F
update-credibility-ijl6 ]; d7 }, J9 d, a+ I. w
1 N* z% [9 I/ B! \update-credibility-list4 x( ?: q' F8 _
" W2 w3 z6 ?9 C, ]! u6 x
7 _; i) g' s. `) h; mupdate-global-reputation-list, r8 _, c/ \2 c
0 ?% `& }6 y0 u" J4 `, F
poll-class
0 n3 y: k; T7 u/ o ~2 I) K7 C. ^# l# d. a
get-color# S$ p/ i$ J! G! Y0 ?
2 r# x3 e9 d: w# @7 B]]" D L* ~ h1 C
4 d& P6 R5 u: ~+ `;;如果所得的信任度满足条件,则进行交易( W9 \, x$ F3 J* H) }! ^$ s) |3 E* ^
* t3 {) F9 P% J' x+ g- r. P
[
+ l% U, q" [+ T6 L
t0 J2 c9 r4 D! s7 `rt random 360) ^( y9 K+ m" q& \& C
" \1 N' m9 U2 m+ O5 u
fd 1; @& A% S. S, E9 |
a0 W& s0 Y- U( h q]
) P/ N h9 F& g; h. e, c. y) M5 ~0 ]) V! {! w
end
, x" L2 g( Z) u" ~* ]3 O) L6 x& U1 `: E- S
to do-trust ) }1 s+ Z9 ]% o
set trust-ok False
7 f. _8 x3 }# a2 Q$ b E1 F! o7 A4 F
8 \3 m( l G y8 `' W- }& ~
( G( m1 a) n& T9 L& qlet max-trade-times 0
& v1 H# z6 G; K) N+ nforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]* w7 ?4 v: y8 @+ u9 |
let max-trade-money 00 g! |2 N1 n6 T6 G! v8 U
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 |2 U& @/ _. l9 N8 |9 H# H2 R
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
0 H9 D# ?+ [1 q" w r+ c7 D3 O5 P2 T3 x6 M
8 |; ?5 k; t8 z# ]& X, C. dget-global-proportion% i9 u6 ?/ k1 t1 I8 {: J
let trust-value
3 {, a5 R$ W' l6 r/ ^1 L( Z1 I3 h" alocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)2 q/ k: d9 [8 o. \6 `1 t/ i' [
if(trust-value > trade-trust-value)
9 k8 |# k4 o0 u[set trust-ok true]/ t" A; W* w( W
end
, K, U# z3 l {7 |, ]6 \+ N6 L, X S) ]3 o- |- L! P
to get-global-proportion
# B6 V2 X' K# g# |6 l) f. Aifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
1 W" u8 ?2 y5 b5 k# u[set global-proportion 0]& [$ I( ` z% P. w* O
[let i 06 {" j4 E. M6 J' f. N5 ~9 E
let sum-money 03 ?! b% `' ]) J# L9 K
while[ i < people]/ w5 L" z. C+ B
[
- q% Z9 e. f$ H& ^if( length (item i1 g7 {/ B+ V- D& o: s
[trade-record-all] of customer) > 3 )3 v+ l% S( L4 y \( Z1 S9 ]. D
[
$ Y/ p9 V8 F5 {set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
: L+ v3 G" a3 O4 ~& R9 W( s]
" l" ?! w, t: F]9 j' r) w! }+ y7 g$ D& O
let j 0+ `; \9 U1 a& F3 ?$ N
let note 0
+ `/ z/ { s! Awhile[ j < people]
3 M; P6 D- t# r# N( t$ ^[! B, C/ W7 U3 R0 B G! m
if( length (item i& M% W: Y. h0 `3 E
[trade-record-all] of customer) > 3 )
6 [4 Z4 F: h( u& P& F& N[
0 y* U, N4 D, Q( E& ^# l8 Difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
) r- v q8 }0 O; l1 N8 M+ F( S[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 ~7 s1 L$ w1 J& G" @1 L9 c
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)], N& ?/ A7 e1 h5 H5 ~6 [; F A/ i
]
; x3 U1 ~$ V' a4 a- T! }, m! p/ {], X" k3 q( B- D5 N- L. h
set global-proportion note
0 B8 {: W {0 A8 y5 i3 M& O$ X- |]
3 j' b0 ^( f' I, Z1 lend
0 \ {# r- i; Y+ y) X& U- f/ ?' k% N+ S: w0 c# U% i' C" p
to do-trade v4 w; `7 X# |1 H! I& B
;;这个过程实际上是给双方作出评价的过程* r/ N( R% B6 F6 ~( Z4 |* v
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价) W* v z3 G4 A6 j
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价" d8 N; C% r! r! T
set trade-record-current lput(timer) trade-record-current$ }; }' p3 s. m% n/ s0 L+ R
;;评价时间; D1 d; o3 Y3 D$ J. Q
ask myself [
. C2 \3 S' S1 N/ {) @ v# jupdate-local-reputation
1 U2 Q, Z6 u! r+ i* L, X: n- e& pset trade-record-current lput([local-reputation] of myself) trade-record-current7 ^% g# e$ q& Z) {. u5 X
]5 G! \% x" R* c
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
0 M# c" B/ P3 Y# g& \7 i8 R1 \# C;;将此次交易的记录加入到trade-record-one中) ]- T4 k+ f1 {
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)+ W3 A( h$ h2 L' Y
let note (item 2 trade-record-current )
9 N ^# ^" z$ i9 O4 _set trade-record-current K& t3 J g5 j! Z. p% i9 _- @
(replace-item 2 trade-record-current (item 3 trade-record-current))' {( I4 ?$ K1 e: q/ V+ e
set trade-record-current7 _* m# `" P( P% n
(replace-item 3 trade-record-current note)
& y, z3 N+ G8 R9 F1 }+ _
* \5 x$ b2 u w, o) l$ L, f/ s' m# j' V7 X/ w) Y
ask customer [* H; x+ n) o4 I. Q( O
update-local-reputation
! `( P& N' p8 k$ G9 {4 P7 fset trade-record-current2 s) q' D4 _: [2 J' p
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
' c6 ?+ N; \( a3 p+ L/ ?8 C5 W]# u3 x/ O$ q. k
0 a! T6 ~) }7 X$ S( [' p* _
" M8 r- ^% A# L9 W
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer4 T) w2 `/ W' p
) I" x1 O9 T: oset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
- z# |8 I: v( l, S1 Q# c& S;;将此次交易的记录加入到customer的trade-record-all中" a6 ?, T( P9 Q/ Z* |8 y/ e9 V
end
, k5 m3 h2 ] u3 `6 [. r# L
1 ^8 Q1 A0 i2 [) S8 z. }2 u# sto update-local-reputation
8 y/ T1 d" U9 v5 Y k6 i7 rset [trade-record-one-len] of myself length [trade-record-one] of myself: j% P4 L) S6 b7 }2 y
, Q) p1 } c% x4 z; [8 s$ b
0 I; q! i0 G/ P, a
;;if [trade-record-one-len] of myself > 3 ' T: n- k5 F+ n- Z
update-neighbor-total
( h1 L5 {9 q5 U2 U" i4 m: C;;更新邻居节点的数目,在此进行+ h. [& \) L' _5 H
let i 3
* ^: X" T ?. `let sum-time 0
0 S I$ d( X- r6 T- O! P! pwhile[i < [trade-record-one-len] of myself]3 Q( b3 b3 z7 x, @! a2 y
[2 v9 [" J$ x! q6 ?4 B# Y# x
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
7 l( `% _; o2 `) J5 f- |8 ]set i
6 |4 O9 b3 ~) b( i + 1)
9 i y& F. w5 K1 o: R: }# `& j]
) O4 V. ?* P& L8 J2 Blet j 3
4 Z; t4 p {, g% n7 |* _% N) \% \let sum-money 0
3 ]& ^+ Q+ \ h3 p, [( J9 S9 |while[j < [trade-record-one-len] of myself]1 |* _8 ~3 o( K7 n
[
( ]7 B, Y0 U$ R2 W& a9 R7 X; Iset 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 y$ S+ q8 h& a( Zset j
! b4 j) t/ @: U( \7 W5 K- ]( j + 1)
$ N G$ b: t: ^6 e0 E2 l$ j]6 m7 U# |4 p* d+ t" G7 }" L- E1 q. I
let k 3! i7 Q8 n. V0 w8 m
let power 0! n+ ^6 G6 j5 l# W U' G' P
let local 03 r; J4 T. U5 K0 { o( X
while [k <[trade-record-one-len] of myself]1 n0 ?3 f8 c+ c2 E" I6 j" h$ }
[, r: c. E4 `8 `% \5 I, ]
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)
5 ]; L8 y) G0 u2 e' p+ t. \! v( jset k (k + 1)
+ V0 b3 [* D4 p0 a2 @]
6 {5 a7 B' A5 F0 k( m- t n3 p4 fset [local-reputation] of myself (local)% m: C' {3 K! m% o% z( T
end; @/ L; D/ n) M9 [9 T+ x2 A
% u* l* | X0 b' h% u7 U4 G
to update-neighbor-total! r7 U' G2 D/ u9 c" G
* \2 ]4 C! I5 i
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]& s# K. l3 K7 n: M# G D% U: l
* `5 J/ Z5 U" [, b* E3 V3 r
1 {& H# k( b. g0 M
end& ?0 h5 W2 l: z! k# ?, O6 R$ A
1 j* Z$ J- T/ s- r$ d4 R3 t A7 g
to update-credibility-ijl
' c" E, D! l: @8 Y, \' `: B+ g
% s% t0 u! {: H0 Q2 _! ?;;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。( Z S& [! S" m
let l 0! t/ q+ Y2 V( \1 ^: v8 u
while[ l < people ]% P# A" S: X% W
;;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
) x t1 R) r& O( R& A+ E[
% e \: g4 X6 _let trade-record-one-j-l-len length item l ([trade-record-all] of customer)4 q6 L! V, J- t! z
if (trade-record-one-j-l-len > 3)
/ Q2 E) y- y- T/ y; h, l" Z5 Z[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-one9 L& p4 _/ k( a
let i 35 S0 G( j7 X6 w
let sum-time 0, c5 W. A6 l' v' p4 u! S: w$ u
while[i < trade-record-one-len]9 w4 j' [$ A$ _
[
+ Q F/ O; ?3 V$ l" R+ @) iset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
* D8 [' N3 M5 f* e2 `2 T/ S/ ` tset i5 ~7 q" h# n: f) d
( i + 1)
% X) s! W- i/ W, A: b( |& r]3 Y. ^# ^, ?, K7 q& @6 j
let credibility-i-j-l 0
5 D) \. u$ w- d# O: l! H: P;;i评价(j对jl的评价)
: G8 Q( Q U, A1 A+ M+ Blet j 36 R5 S+ O* ?8 e+ U* e
let k 4: j9 ~: d4 J5 ] J' {" v) g; I8 Z7 b
while[j < trade-record-one-len]
) P+ j+ t" T# C& S6 A[
% F' q7 v8 Y* ~, U5 Zwhile [((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
6 s+ I6 \- q8 [- ~9 i8 L& gset 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)
# K' n' F( n9 x( x4 @set j% H5 b# s: i4 y, u
( j + 1)
: F$ a. o# I6 C7 \( W7 n]7 k' {( F# X f% 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 ))$ Q% d+ I! S) s/ T# O0 W# C: X0 D: a5 x
9 z( Y% r ], ~6 M
) M" c/ u# A+ N' A' h2 h
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)) v" d+ Y, P7 ]- [
;;及时更新i对l的评价质量的评价; M1 U+ J# }* B9 N/ ]* ^% p
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 _6 M2 @& q$ b$ K/ \
set l (l + 1)
6 h; K' E& v& e7 V]1 E' z! N$ S3 ^5 ^
end
; e* P7 C @) c+ i' b6 m
! I0 _7 I- s @3 J+ S0 ?to update-credibility-list
/ o8 g5 }" S b! J# }- D6 hlet i 0
6 h) g) m4 g! ]2 x. i: F* w7 Uwhile[i < people]
$ j+ w2 N/ b7 D3 d* Q5 U[! N/ G' g5 s( @6 s- ?6 s
let j 0
6 i3 K _/ z4 e' T0 E% O) Blet note 0
+ ~ B6 _) c+ F0 _8 m, y6 @let k 0
8 e! w) t" ?6 ~ X; u;;计作出过评价的邻居节点的数目- f% W, o5 }! H A" ]3 [
while[j < people]
) R' Q+ l; y' y6 y) ^3 J[; |/ p6 K; O9 `; }3 H- r& c
if (item j( [credibility] of turtle (i + 1)) != -1)
5 U& v( J |% H. K;;判断是否给本turtle的评价质量做出过评价的节点1 {. \% _" w+ k
[set note (note + item j ([credibility]of turtle (i + 1)))
; D* {9 T2 r( `* Z$ G# m;;*(exp (-(people - 2)))/(people - 2))]
% \+ A- Q& v4 E5 v1 d+ jset k (k + 1)& v7 q" d' n" V/ m) W2 S6 q% Y
]$ e# A% t/ A4 F
set j (j + 1)& H* d V# J; X9 }) {
]/ r$ z( ]3 h/ z: k4 I6 o) ?& {
set note (note *(exp (- (1 / k)))/ k)
6 }8 G- H' |7 v" Aset credibility-list (replace-item i credibility-list note)
2 |8 a( _+ w3 e0 F4 L Pset i (i + 1)0 n, `3 [5 N( b3 R! v
], w/ a5 I. F1 U
end; V( [* D! k1 I; {. c3 I/ b" F
2 z1 ]. v) T1 R- n3 K; P
to update-global-reputation-list( q0 |% _ n+ |7 l2 a
let j 0
) I2 V- y7 ]1 Z% nwhile[j < people]
, {; Y& `( ]( q5 N2 I- S[$ N" ?! `& Y2 ]5 X
let new 0" I) s' V1 e3 u* N, x* J
;;暂存新的一个全局声誉* S6 s( Y9 [1 Y; G& [8 r2 [7 a
let i 0
3 g' u+ z, O# @: O7 J6 G: _& R! Olet sum-money 0
! Q* G3 R8 q) b" Qlet credibility-money 0
9 a+ h v' f& d( l5 A7 H6 Hwhile [i < people]
1 \- |1 K- L/ i3 `' U[6 O0 x% N& s2 X! ?, e3 O+ }* @
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ ]4 C1 O' y) ?4 e1 b" P. d( z& v4 M; tset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))5 R, V/ h- `! X; s7 r; i
set i (i + 1)
% b5 m0 U( C9 m m: ]]
* N: J" g- e+ k# Ulet k 0
4 \/ r: V6 W9 A( `let new1 0
# u ?4 `* k7 b g1 P2 b+ `while [k < people]
/ h: N2 a6 W* P, }[5 d- e& z- h3 E" ~! f9 u9 a5 p
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)6 w# L0 I. s4 A1 m0 I' l
set k (k + 1)% H: p1 q* L3 g& z+ U2 F f
]4 F& F3 Q u8 N
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ( }. ]! \( h9 d
set global-reputation-list (replace-item j global-reputation-list new)
& f- R4 M# j' Nset j (j + 1)
. H: g) H! g# G! V1 b6 U9 |( e]
( B; i4 c& r5 y, h+ `end
4 T8 n/ W8 {' m. [. X$ L: A# I8 M6 I1 {4 `
Z9 A9 I. M& u! l) q3 [& y
7 X/ @# u1 {9 E/ Lto get-color
- c0 X* C( x9 B- R# N
5 }6 P4 k) Y! p9 Xset color blue
+ c# r! E" l1 W4 w/ ] T7 L5 }6 n/ wend& S/ j6 t7 u! Z
5 U0 r$ [# A! i; J" a
to poll-class* |5 Q5 ^. I: \
end$ {& h# x$ Y2 Z, R
5 h. Y* D; _% x5 Z2 R# u0 D
to setup-plot1* C' w- | p5 l, q$ P3 N* i- ^* K d0 s
, Q1 K# ^+ I6 x
set-current-plot "Trends-of-Local-reputation"
7 d9 t9 c3 D6 V/ e2 N) z/ x$ ^' n+ x. B( {: r' H/ f3 F0 B
set-plot-x-range 0 xmax
. M; c. ^5 p# i; ?, }
7 H+ p) G8 C( }7 q8 Z9 U5 |set-plot-y-range 0.0 ymax, R9 O( b, t/ q$ ^: c
end
" f- \. |( E, w) t; {; {
( X# n) D n. S- s. O6 f$ mto setup-plot2
0 E2 o! K/ N7 H9 K' }4 `4 i/ S8 i7 @0 e. k
set-current-plot "Trends-of-global-reputation"# h& ^2 z# {% E" d7 c
, m5 ] q: Y; T8 y* a* n2 V" D& B' d3 dset-plot-x-range 0 xmax" { a3 B+ S, ?7 e
7 B( B* y5 q" ?
set-plot-y-range 0.0 ymax2 Q0 f7 E% T2 `: p4 E/ M5 I
end* g. Y& P8 g# ?
S- ?+ [, C! @/ B+ oto setup-plot3
2 t% }( E5 E" i
# u! k4 T% H2 I! |% B, xset-current-plot "Trends-of-credibility") O, U: w& z4 M6 X8 d
; n: A8 G3 Z2 Y6 m2 Eset-plot-x-range 0 xmax+ T6 h2 I0 D% p* E# y
2 w& s! D/ _: n0 t+ P+ X+ d% R
set-plot-y-range 0.0 ymax
; b8 `) @: G$ ~) n: w& hend/ M+ D( }. S! k3 L+ z4 M& C& z
; M; f" Z8 d% |
to do-plots: A" ~" E4 X) \; m: f- o- c3 c% Q
set-current-plot "Trends-of-Local-reputation"
E; e; y% Y- w6 cset-current-plot-pen "Honest service"
; l9 x9 s! S8 I- oend. g4 @# I: Y' [. L" a8 U
3 E2 U' ]0 B: C4 S- O; S; d
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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