|
|

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
+ b/ H9 r3 M) x+ Fglobals[& d0 \; i3 s- A7 t; o
xmax
# z3 T7 U( }% x) t3 E1 g8 a- V; _ymax' I `' N. I+ V* C$ R$ Q
global-reputation-list1 N& G& w- r3 d6 H
. W0 ]# s2 c* r$ n/ q- X2 {, |;;每一个turtle的全局声誉都存在此LIST中( v3 m" g, y8 U
credibility-list2 z* e/ C( `2 ? B6 c
;;每一个turtle的评价可信度# a$ k' C# F2 Y$ ] X1 O
honest-service- O$ n+ l% S$ O/ Y P" A
unhonest-service8 e3 `, w8 O$ o2 q$ M% p
oscillation. R( _; F8 f3 V+ f; x' [
rand-dynamic
% B4 o" K+ u7 r* {+ i( D]
( ?& G( a9 K @" H# B* ~% g7 v; @. a! ~ q
turtles-own[
9 t7 @( ?: ^0 G8 @/ Y2 ?: Wtrade-record-all
$ i" d' d8 R2 X9 o2 I9 d5 P;;a list of lists,由trade-record-one组成
5 F- @6 Z$ q2 X, Ptrade-record-one6 n$ \7 C3 c) Z, p
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录 B+ P% O5 H( F, T+ f
! d' m9 ]% I6 |: I: b. |;;[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]]/ i {) y" |3 k# q. u: `" K) ?7 L
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]1 l4 z) H" D2 y# P
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list1 y0 ^1 f+ \: a; C3 D( M
neighbor-total
0 P* c$ a9 N& E) a# y; O3 u! |3 Q;;记录该turtle的邻居节点的数目7 W3 [# H! u: |7 F
trade-time) B0 V# d0 ~7 G: E% g% F/ A4 B4 G
;;当前发生交易的turtle的交易时间# o9 K3 r3 {* x( u; n7 l* z2 N; K
appraise-give. G2 E. g5 ]4 C0 X
;;当前发生交易时给出的评价( Y! j, h6 } X
appraise-receive* b" e) C7 S3 `0 c2 Y( }) U
;;当前发生交易时收到的评价
; V3 p5 e6 N& |8 x& i" r# sappraise-time# l/ `. L6 J2 s1 T# u
;;当前发生交易时的评价时间) X; y% y5 e1 m
local-reputation-now;;此次交易后相对于对方turtle的局部声誉# \6 v7 c7 f F0 @1 ] {" y3 I$ X
trade-times-total
4 F( O9 P+ s5 s; `% a2 I% Z# E;;与当前turtle的交易总次数
6 t9 \- g$ t: |( s/ {6 ctrade-money-total4 |* I( |* z1 x
;;与当前turtle的交易总金额
- _4 t+ ^% `0 U& [local-reputation
7 L1 }3 \$ s. |2 ~$ f' M- Tglobal-reputation
9 U+ }* M j# F1 [7 Z$ fcredibility
' r, W7 u+ z1 N, y;;评价可信度,每次交易后都需要更新& y( S. z/ S6 E
credibility-all
/ Q: c4 U$ I. Z3 k5 N" x, B9 c;;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
* X% U7 _: C% p% Z8 d/ _! G8 Y' `4 j, C1 t9 j, l& u# j
;;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0.56 n4 g9 |# d, h$ Z0 m* M8 t6 N
credibility-one
; @' c. r5 x3 x, \* B: ^. 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
' I8 ]0 B; V2 _) [2 yglobal-proportion: v; Y( A B, P0 k4 F
customer0 P2 P1 p/ T- [8 Z" Z
customer-no
l+ E P2 N; a% F5 `: etrust-ok
" p) O1 w- e, v. E% L% o: x6 \trade-record-one-len;;trade-record-one的长度3 }; Q) J$ W% H L
]6 M6 t+ _/ B% ?& h* `
; X! G+ i g- @) d- i
;;setup procedure' J1 {4 T: P0 ~: K& s! e$ S
R3 }8 \- {7 b) e) kto setup
& K. N; O+ g/ W3 u5 `! b9 z$ y. l% W: P N$ G; O' @! u
ca# `# A5 y% \1 a# F8 J9 y
@% s. ~0 k6 }9 Winitialize-settings0 |. w# O j: F' Z
/ F+ q! x! W0 J. T6 Q# ccrt people [setup-turtles]
- }2 f2 ?9 ?) m4 p2 ^: z+ F; [. E' W8 h3 j* v/ ]
reset-timer
: [! d1 S, ?- G* P3 Q) d0 d2 y
/ n( U2 f; R+ w, K+ Q' [poll-class
4 E5 D, y7 O4 \+ X! O! H K: j% L9 R& Z6 F3 \/ m
setup-plots
" X2 q& Z; O1 A: I& J8 L2 o3 L# {5 k+ Y) P
do-plots7 B# C$ V" u: n8 _1 G
end
W% I( C, q4 x1 E1 u! P( x
3 ]# G* t+ n G6 @$ \: Y R7 ~to initialize-settings
+ u* E4 ]) q6 e2 [, z& ^) E8 E6 x& r9 h& t1 X
set global-reputation-list []
$ I4 {& h- e- @" Q% @' g! t [
: k3 f5 c1 F$ I, S& J* `0 J+ r" xset credibility-list n-values people [0.5]) B( V$ p3 V2 h( [+ f$ O
* F" ~; Q! _/ pset honest-service 0- U/ |, r% @1 e0 a( Q
- g! D6 p: e& H
set unhonest-service 0
( Y i& y. l$ @! j& v2 W* u- N- s; O& L* w% c' d- Q$ k3 f
set oscillation 07 s# m1 i" }8 x$ I& L6 m9 N+ ~' g$ r
+ l' t! V, h' W9 S: d4 yset rand-dynamic 0
@! K- ~) Z) Send
! u3 M# l) E( A0 z2 [4 T; d5 `
0 }- B {: ?- C9 z& cto setup-turtles 9 F( D4 Y% A/ a
set shape "person"
8 A1 w2 }$ S* n& r. _, h/ |5 Jsetxy random-xcor random-ycor
* x4 ^* P5 M* l1 m( wset trade-record-one []
1 s/ G: q e0 M& e7 c) Z; h9 n) g
1 o% f h' E2 e7 f* Hset trade-record-all n-values people [(list (? + 1) 0 0)] 6 Z! W- @+ ?. z3 g/ P2 n# M2 g
1 Z& n* h( c, }: q& N9 h( i! bset trade-record-current []! h% y% @+ ]2 h
set credibility-receive []
. N6 _) w! c3 [9 |set local-reputation 0.5
7 j: b0 U+ a, r: n) Bset neighbor-total 0
# O I! ^6 n# r( [set trade-times-total 03 f& `0 ?! t& ?: S0 U& X
set trade-money-total 0
- o1 B9 ^' H' V' o0 c+ l4 sset customer nobody
2 {$ U' _4 t- N8 y: ^set credibility-all n-values people [creat-credibility]" x/ f8 k5 r( m) Z7 R5 a
set credibility n-values people [-1] z1 m5 O) x- A/ M
get-color
9 F8 [7 H# t2 P+ N! f. u" X. s& h: @/ S" F, j
end9 o6 s) q0 X4 V# I( C" z! b8 K$ Z w
% B. ?8 | w: m9 s
to-report creat-credibility, T2 z9 r/ g/ I9 x4 @6 M3 z2 i" s
report n-values people [0.5]$ @8 U) A4 A/ B1 v( {
end
( T8 P. N% L/ _& X' L: L
5 p" T U+ f7 q5 j! s& Mto setup-plots9 A+ s9 O- C1 V$ X# |
$ e% T4 \- T. S yset xmax 30; u( D( P' K/ Q2 _9 X( Y
( @; I3 p! v* _5 Y L3 p
set ymax 1.0! m$ U7 q6 n2 z% L8 _
' C" y6 C5 ^# z+ U% w: e
clear-all-plots4 ] [0 R; u4 E9 l; v( f# X4 H
5 _ Y) V T! k, O3 ksetup-plot1
7 [+ j$ l- F" Z% O
& c' d* \& J) esetup-plot2
! H, I- ^& L1 R0 O. @) }
# N$ U J0 n4 I3 I4 T6 o0 V* P1 Jsetup-plot36 m1 L A7 I1 H
end
0 A! u- ?* F( x* v: H
, S( ]$ _5 T( E& Y! z;;run time procedures
- R( ] E' F$ I
1 y8 L5 @1 n# D9 V; p5 @" ^to go7 o( f- N3 h* _7 q. K3 s
) S% J5 f* F: S) u4 F" w* m3 x) B
ask turtles [do-business]1 t I, Q' f, n$ ~( L) g; G5 J
end
7 H2 M& f, Z ]3 [, X- `% c
# e! Q5 M1 _$ D5 J" {to do-business
5 Z4 l; t. ^/ x3 a: |$ f' D5 o: k* o) B& b/ g/ c! t% s
9 {, D& v& E6 l" K
rt random 360
& d# L3 T- o" a9 l
+ b" f5 i: b1 W* i- Ufd 1: w P. C2 g B5 F! R! P) Q w
- P# L! d: |! ~3 s
ifelse(other turtles-here != nobody)[) m. D, E$ m2 v' e3 T
0 A6 q M7 |. V! N
set customer one-of other turtles-here8 T% l" F9 V+ y) c8 [, |4 u8 m
" P& }3 P9 P7 }1 W# Z z$ t9 o2 _
;; set [customer] of customer myself+ o) d6 l4 P, }3 a" P1 |
6 a, C; @* F2 W. Q+ Z W: E: O/ i
set [trade-record-one] of self item (([who] of customer) - 1)
m8 K3 r( u0 `1 J U3 d[trade-record-all]of self
: |/ G; }9 g; b' u2 B& c' ];;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
2 j2 I4 a' x, z# n+ B
9 ]9 n- G) ?# ]8 c& L9 @! Q- Gset [trade-record-one] of customer item (([who] of self) - 1)3 T. O& ~$ Z: E3 ~" [6 p
[trade-record-all]of customer% _' X- f; h. n! @& t
* t* C T0 m$ S* y x8 }set [trade-record-one-len] of self length [trade-record-one] of self
5 C* }8 J8 R+ q2 a9 c8 |9 e, l5 E
set trade-record-current( list (timer) (random money-upper-limit))5 }% s; V/ e5 f2 @5 O i
+ x* {1 C; U+ }" d- ~, u/ i
ask self [do-trust]
2 m5 _6 X: r. P$ t- M+ Z9 ^;;先求i对j的信任度
& f+ R) A6 h O& v) T( q4 M4 G# c- Z
if ([trust-ok] of self)) B( |' }7 [& @$ M
;;根据i对j的信任度来决定是否与j进行交易[
4 j% d: I6 `+ H9 R+ g3 l9 Xask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself2 l! R% w2 g) b
$ g; L. }( \6 n5 z$ p[8 {% ?8 f1 F5 U; \# R! J& z3 h; S
" A3 K! s2 J$ s- K9 `
do-trade9 ~7 L: N) v/ E: I
$ ~+ E& p: ~- W2 W7 N1 m/ N2 L* r( ?
update-credibility-ijl
4 c% B& K4 n( Y* a1 C ^ b( @3 o% B1 x& | b4 h9 j, Z
update-credibility-list
6 T6 D) s% m! d2 [5 P
9 Q1 h+ C- ]- M0 `0 F3 T' o' t4 ?& a; ~& \+ I- n# F
update-global-reputation-list
+ J! f- i- G" h) Z- {( T( c: F! Z7 _* U% R
poll-class' ^/ H" m! q+ ]8 i: I1 w
8 I ]* B# U) b; W! Oget-color+ |0 I8 E, h% z) `7 G, r$ {$ `
" g1 l% B$ U9 i# E
]]% f ?+ m& W* k; x- Z' z
5 O" J) O+ E; m8 t U0 ^$ S. d7 p
;;如果所得的信任度满足条件,则进行交易) b4 H2 L* A0 M
& D9 z/ w1 b2 V[4 Z# b9 W! C9 a4 Q, N, i1 n
6 W! T: Z6 k' g/ I1 w. r6 `1 C9 h
rt random 360/ Z z/ }& R k1 V# k* |
. P! d# V' B* v, h' B! ufd 1
/ Q/ A( \: Z3 K$ E; ^& t8 S' T8 [, w3 J: X' ^# K- G
]
9 B( I# ^$ c% P' g {5 t; R- p% M) U% P8 t
end: m/ t' U: O8 R' Z( V4 G% z
& @4 I; x" s7 U# m8 D1 T" T
to do-trust 5 o6 n, A/ p4 u( j6 i( q+ _
set trust-ok False, D: H7 G. a: A5 l4 B+ g
# t! R( u" H& v! Y! A3 W ^
8 Z1 m% O% k1 V% s) O, ylet max-trade-times 0
& Y0 H+ {/ T/ Wforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
& E6 C& r1 Y8 w4 elet max-trade-money 0+ H, C# Q4 {3 x
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]* o/ @3 t& s7 M9 j% F, y7 N1 q
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
$ E: i: J' F4 m- e3 S! R
% s/ |: K3 {: W( `2 p: a
( E. j% r- n( {: B mget-global-proportion" ]* m1 c1 s0 i& ?& S& k$ R: u3 N
let trust-value
; d. k! C b# A, F4 l) Ulocal-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 C4 f& v1 _( T
if(trust-value > trade-trust-value)- q7 `- ^: Z- H& S
[set trust-ok true]% s+ V7 o0 e0 N3 G# Z/ ~
end7 N. K6 }% }* D Y$ f/ y; m4 I
# V$ m, [% c" H4 Lto get-global-proportion3 I# H) c$ r$ i( s: B4 i
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
' M; z% c# ^! u[set global-proportion 0]
9 f" e4 D3 r7 R5 d/ H4 q% [* s7 L( y[let i 0- |" j1 c9 W8 s9 @
let sum-money 0
* v b) a) |, N3 j! n$ l1 l% [while[ i < people]
9 i6 y T7 V) ^( W2 A2 P- F$ {0 @[. N! ^4 U! s+ I/ l
if( length (item i' r/ l- C' K: Z9 {: s% a
[trade-record-all] of customer) > 3 )4 {4 o; c' h @6 Q
[
& T% D% {1 Y$ c3 C( Y: l' Kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))8 S+ A7 q6 X+ E- i6 Z+ ~& [, h J g
]: u1 ?* X4 K3 u% {
]
# e, [7 C& `# Tlet j 0
4 I; @/ R$ N A: h6 B, ]let note 0
% s6 S1 } D% O B4 Bwhile[ j < people]
- @0 U0 a/ O: d `) n. g[
; I# V4 A2 J/ R {if( length (item i/ F" L( K- {0 @: B U
[trade-record-all] of customer) > 3 )9 V; O+ Z' U" \6 N( [. }
[: v! s; @5 G2 L& O
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
3 r) h9 p3 z7 {( |; ~[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
& f; E- @ M1 e[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
T* k8 m6 j: V) y, r]% a( c+ `% s& _' O
]; F6 m9 j" U7 I( c
set global-proportion note
8 M g8 v6 [8 K4 B]- ~2 F" i, c* v' @4 B" ]" F& y
end; `/ b/ e# L2 [; }& [% X. O" o. M$ ~
) O, e$ y$ t& F6 y: W* s: {to do-trade
, R5 O& m% o1 a;;这个过程实际上是给双方作出评价的过程& k- Q; b: m5 I% }. I3 K
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价- q, ^; W1 d" f# h. g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# I2 [- V3 |/ Q6 q" z) \
set trade-record-current lput(timer) trade-record-current' X8 G) l' g' S9 G
;;评价时间
6 `7 L$ g7 ?; C, E0 J7 Wask myself [( c4 o* t; S% w: t* p
update-local-reputation2 s$ u8 I, c8 U: q4 b: }. w" c
set trade-record-current lput([local-reputation] of myself) trade-record-current
" c; z. I2 G, z]& o/ B/ R1 E) {& s- R
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 b. q/ m) a* o6 ~ a' o;;将此次交易的记录加入到trade-record-one中
7 o1 W$ h% Z3 [" C+ c' jset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): M6 t* L* m7 o- G
let note (item 2 trade-record-current )
, G6 C8 Z8 B8 m$ Bset trade-record-current
; \% j/ b! Q$ f0 x; I* A(replace-item 2 trade-record-current (item 3 trade-record-current))
) o, h* _- A: Sset trade-record-current
2 w' l# T) I9 g) \& n5 F(replace-item 3 trade-record-current note)2 k7 Q$ @" {% _( }
5 _- a# o, s7 n4 L* Z. [9 }9 Y
% m% s6 m4 f7 i* z5 |" j0 |ask customer [
) o8 u5 r0 r: W6 D7 g; fupdate-local-reputation
p0 a% o9 Q( pset trade-record-current
1 F6 j6 o t5 V! ]3 r* N$ Y(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
: M: q6 j+ I& Z8 h]( i' C9 e3 }& O. M7 P# }6 b
, N+ G* t( l5 U2 m9 |3 m/ I
# M( ?3 S7 Z( D& Hset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer. f" d+ N0 m; l
/ }* X& F) P( ^" T( ?7 H# s
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 G1 |* q! g" b; h5 F* A! E) r# Y
;;将此次交易的记录加入到customer的trade-record-all中
( X: C: h) K# k% Rend
% t9 W# M& s7 ` Z" i- x! `7 }$ |
to update-local-reputation r1 p9 `( [& J. B N& G9 ^7 x
set [trade-record-one-len] of myself length [trade-record-one] of myself, m- S, H1 m- K. e @
7 \ R: a. n% H
* ` n3 B8 o+ }" L- d* b;;if [trade-record-one-len] of myself > 3
# s: a* R5 {5 N: _9 Hupdate-neighbor-total
W2 V6 ]2 T# I' `4 _0 B& N;;更新邻居节点的数目,在此进行
( e6 J# H5 }3 B6 G, Dlet i 3
* T6 u1 o- @( c( ?4 d& Wlet sum-time 0$ L! e: t' D/ H5 K; z8 c" t
while[i < [trade-record-one-len] of myself]
- n2 F, b8 v' I- g5 K[: c2 l/ @2 H1 d( x( F$ ^
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
. V4 p8 ]" H* c* Jset i3 w& F5 ^0 l) o4 C" L5 [1 `% O. c
( i + 1), u4 P5 r$ R8 z0 `/ F6 U
]
2 [. g( X7 x6 X& Mlet j 3- Q* Q; K8 [6 i3 v) }
let sum-money 0
6 f4 g) J- e- G: P# u. c0 Kwhile[j < [trade-record-one-len] of myself]
3 r: L" e% ]/ y G[' R9 m7 M2 ^' S; z, 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). B8 X$ N9 x( N$ ]5 V0 b8 K0 f
set j
" H! F1 V6 O2 N6 c" f( j + 1)* A% R4 C9 L8 _
]' Y# Y* W( P0 {0 R
let k 3
4 z3 B6 t' _) q5 Y; Z1 llet power 0" H# Q5 F; [" O1 m7 D, ~% P; k9 Z
let local 08 @7 `3 C8 n/ k
while [k <[trade-record-one-len] of myself]2 [1 G6 u: f; B' `6 p. s4 O6 j( J
[0 o: y: l% ^* a) u1 h7 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) & W; Q$ X/ x i7 s! x/ l8 ?2 j1 e7 c
set k (k + 1), {& z) F5 s4 r" W/ O( D; ~" f
]
. u5 {% p8 w p! pset [local-reputation] of myself (local)
( Q' q# J6 l' U7 a" m4 D7 Gend0 g* Q$ q0 v! N/ N1 {% v
; {: B( L. M" _6 x# z- U
to update-neighbor-total# p3 Z. ] v Q' ]( {6 p2 X8 M3 `
; p$ U# v8 [8 Wif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
6 z7 B9 d+ _0 A y6 J6 ?; {2 |1 U/ k8 F( `; n
9 Q9 l1 X7 z3 g6 Bend
8 z2 j' h% k( A
; i1 A4 y* t5 @1 K: N4 m; lto update-credibility-ijl 2 C; g1 a2 K+ t4 d& m
3 T3 c4 I6 g7 g' T- d( y, }
;;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。7 r Z$ ]7 A: |! N
let l 09 a& w/ p% F" S* T; u9 b
while[ l < people ]
8 Q& m; p+ R9 F;;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
4 T" l- M2 V5 G' z' S[
+ `% }# l, l! ]2 Olet trade-record-one-j-l-len length item l ([trade-record-all] of customer) l+ g0 d8 b, `
if (trade-record-one-j-l-len > 3)
8 U R, S% Z; t7 O$ @4 q[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+ P8 I: R. z/ D5 K! \
let i 3" b, ^2 u! f: c% D) U
let sum-time 0
) L& |7 n8 ]! x% Q0 H" }while[i < trade-record-one-len]
4 m# k7 ^8 y1 t. r1 R& c: d1 x. \[
, W2 C; C4 j4 U( G# fset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
9 ^* y" Y6 s+ K0 Q; B# G1 a" \set i
: b x5 d5 U- F; a% Y4 u$ S( i + 1)
; Y% A, P, m* Y7 v5 K, h: D]: D2 X4 u6 X; N5 J# a8 |" g- } o p
let credibility-i-j-l 07 @. \! Z* M$ p4 }8 X0 E. p
;;i评价(j对jl的评价)1 M$ T9 J! I; |% _: C9 ]
let j 3
; j% s b4 `7 a& y& Olet k 4) E, b# m! Z7 ]. I
while[j < trade-record-one-len]
1 K5 M2 q9 J) j2 x3 r[
$ q- ^( e, ^6 }9 s( k+ e* 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4 i1 w6 Q" ^) x; }( [0 [
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)* u! i9 A8 C9 l& Z
set j0 m. i. J( Q+ m5 u9 E
( j + 1)
8 E; v; C% |, X$ h& R/ i]
( V' B: f; j7 r9 bset [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 ))+ r$ \/ g9 z! l; M$ I
: v! l! j6 ~9 b* M& J9 K- E, k" R, o9 {) k& |2 u$ d4 v
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))# J* V$ e& D1 }0 D; T- A
;;及时更新i对l的评价质量的评价
! k8 d. a8 F& U" T _, Wset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
6 Q: V% F3 v9 e. F" T6 Fset l (l + 1)2 k' [+ s t! U7 d M z. T
]
# ^+ H% W/ R/ f) ?5 Kend
: @+ c* i9 v7 {
5 }& B; {- v) Q z& d$ ?to update-credibility-list* r( W6 n8 @" M. c" d, X4 Y
let i 06 P5 U: ~% y5 x8 o- I7 d) q
while[i < people]7 k$ |( [# T& v5 N0 |1 C) F; O
[
) d2 V p3 B& J0 E' S% @0 Olet j 0
! j8 d( I/ N% o F9 p$ ~/ b' ?& ^let note 0+ N% H( b+ v8 k' m( ^
let k 0
e4 D" Z; U/ D! i;;计作出过评价的邻居节点的数目& k) J5 n& i8 V E! h# d4 x! `: @
while[j < people]2 S, W7 W; h$ e/ Q( n
[
3 e# N6 g% ^# s% `; V$ X' F+ J1 Iif (item j( [credibility] of turtle (i + 1)) != -1): O! P% K7 c3 ?) {8 Y2 `6 E
;;判断是否给本turtle的评价质量做出过评价的节点
5 c9 e3 T3 w* F6 u+ q[set note (note + item j ([credibility]of turtle (i + 1)))
0 f7 F6 ~9 N9 s+ S;;*(exp (-(people - 2)))/(people - 2))]* J8 V8 U3 f8 ^
set k (k + 1)
1 s+ D5 H* ^, D: m7 ]5 e( m]
3 s9 ^% q: F$ Y: ^set j (j + 1)4 K' @" V" r0 d3 B
]3 a) Q; h1 d; c' q6 `$ H L
set note (note *(exp (- (1 / k)))/ k)
' H4 _) E6 ]) x5 e; B4 o cset credibility-list (replace-item i credibility-list note)
7 I9 E+ \; B( u. U) [, ?$ p( r. fset i (i + 1)
6 N6 t( u( ~5 g]- p; r& y/ H) n4 z. E
end& z7 }0 ` K; [3 K, q
/ ]0 b6 T6 |* u$ O& X
to update-global-reputation-list& ?) u1 i' ]4 Y- F8 l
let j 0
3 u: K8 P3 c' \# D2 K( i, D: p/ Swhile[j < people]
& q' u5 y- s$ \3 Q4 b[
; o% Z3 e# c, i2 Y2 R) ^' W1 x* blet new 0
, p5 `$ z) l. I7 }! g6 v;;暂存新的一个全局声誉1 O- C1 j5 B: J# w
let i 0
3 h: p' `. Z! A6 e. S% F# Y* U1 k) D0 hlet sum-money 0
( V3 c5 b) x. G, Jlet credibility-money 0
, ~& C" _ {9 i! A1 ~$ J& V4 iwhile [i < people]
+ A6 g( b8 t4 W2 T" F' s T1 z[* b0 F J; }7 a, d! o' d2 M% v1 b
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))9 G l; b! s2 P: S- }! M H
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))) u) X4 F4 i7 c3 V
set i (i + 1)- r# g" ^+ X3 K) ^
]
8 p7 u' w5 S& k4 P: slet k 00 H; y" \9 B. w( a; L# X/ Z
let new1 0
4 E* q, I3 x' mwhile [k < people]. S* l o; N2 ^: R( X0 M& g
[$ d7 i2 \ F j. }
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 {" w9 v! v3 b- ]/ K6 k/ ~4 y+ ]
set k (k + 1)3 p0 b0 l; J& h0 C) ?4 m$ `
]
6 k8 c) x6 F! ?5 L0 O Vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
' ]8 z- `; C5 W1 E3 s' M: sset global-reputation-list (replace-item j global-reputation-list new)
* }1 A; G# |% ~- ?2 C. Eset j (j + 1)
, w4 n/ l! X2 K7 O]7 X. m$ ~7 s! c& r
end
O4 ^6 F2 g$ c7 s8 ?4 { H" l" q
) \' l% c% K; o3 C" j" A
" g: t" S0 t- @: g$ k' ^$ G3 S! ~/ J! b; s& o) F/ Z
to get-color! O. ~ S' W# x6 K5 Q( V6 j
7 C7 W+ B6 X) v! A+ B( r; `set color blue
& Q3 n6 c+ i9 D! Oend
/ e( T9 k/ ~4 E+ L2 {+ j7 @ C D, D% L+ E2 ~& V% s# i8 L& j1 Z
to poll-class
. O3 w5 j. B, p/ b2 iend
1 S: n* K$ E2 J* t( }8 I+ `" ]( w8 {. r% F& F; q
to setup-plot1. y1 g1 y% t' U5 l5 d7 O
& ~6 L4 Z, Z3 a$ d/ |0 c
set-current-plot "Trends-of-Local-reputation") m) }, M7 C1 ~* o
# H3 @, y+ l$ S+ W# |* F
set-plot-x-range 0 xmax: u8 K0 u/ e5 t: Z5 q
7 s" k9 _' z! E) H& N8 Q" L
set-plot-y-range 0.0 ymax
! p0 J( [8 |0 H: Eend
! [1 d& |* f: y4 K6 W
: c. B- Z0 B5 i, oto setup-plot2, n$ i! W' D, R1 q
1 X$ z @. I1 G, w+ C' x; {
set-current-plot "Trends-of-global-reputation"6 m8 D2 o% ?$ U( v
' w6 W( P/ Q# ~& F" N/ X
set-plot-x-range 0 xmax
) H5 W. ~2 z+ Q7 ^! Z% s
, \6 I+ b1 l, g8 h2 fset-plot-y-range 0.0 ymax* Q: m! E1 F" M) x
end1 f B( f, X8 c5 @. {1 q. Z1 E( O) \
8 s8 D, K3 J R- n. V4 m0 {
to setup-plot3" e2 f/ @5 x/ R
$ h) ^9 w5 j. G1 j) o+ {set-current-plot "Trends-of-credibility"0 y4 L9 E5 B) B2 ^8 D+ T
" E: f1 x* D! `/ _% X4 ^set-plot-x-range 0 xmax1 G, u% L" B# M. E
! Q x& w$ v. W9 ~0 l; _set-plot-y-range 0.0 ymax
' R4 m- X+ ]4 R' M" k3 q7 Kend
% \0 \" B3 L. _
4 L' i5 g, E+ V2 @to do-plots
) `+ m8 u1 F% O X4 uset-current-plot "Trends-of-Local-reputation"
) U$ g2 v* {2 B! Dset-current-plot-pen "Honest service"
: E, t8 v i$ z/ T. y8 F$ zend
2 ?& X5 e' V+ E& z4 p. D [5 l' R& Y# A- u" }: d& K$ O- f
[ 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
|