|
|

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
8 T k7 {+ ^* G$ T. |# s$ |7 N% x) Aglobals[
4 f* [# B( `; @, V4 E+ U. dxmax9 {0 h' ?6 v/ V4 O0 U
ymax
& S& G$ ~, b) o: |8 Bglobal-reputation-list# R# ]. k" X2 _! ?7 Z" p+ ?5 l
: M$ w" a" m/ h8 |! V
;;每一个turtle的全局声誉都存在此LIST中
* i* r" { B( B9 } ucredibility-list0 o% U( D; d' ?* X9 `$ L( Z
;;每一个turtle的评价可信度1 B- l0 z- l7 {( M: M( i
honest-service" Q8 |, p9 p- D5 z1 t9 F
unhonest-service
Y/ x! ]& W0 hoscillation
( P( c ]! q4 irand-dynamic
3 ?# ?) s" g, p \]" I/ {( f* |. k$ \
4 g7 c) I \- Z) h- e+ G X
turtles-own[& C7 y$ j7 {$ K) v' m- s' p
trade-record-all! H1 p# K. \0 w. G
;;a list of lists,由trade-record-one组成
: O9 f) K' i. W: F) u4 L% g- [trade-record-one
- Y+ P3 c& D- K7 ~+ [;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ J( F& G$ H& @" H
H9 @) ~7 C" f3 [ |$ e/ \4 F7 z7 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]]- j5 U7 n. f* |& C, t3 t+ t
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]
- J' F1 y2 N- _, |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list5 b& V; h: g- v& @
neighbor-total
7 O1 g$ V* v4 U; o! C* b;;记录该turtle的邻居节点的数目 }" t; E& P& ]7 H
trade-time4 r) `0 z$ [" s; L' t
;;当前发生交易的turtle的交易时间/ i4 J3 `# L3 Z
appraise-give
+ K9 ^+ q1 \- b5 S3 s;;当前发生交易时给出的评价& r/ c/ a6 W! m% t6 j. q
appraise-receive6 R( Z! R+ n& y* v8 K
;;当前发生交易时收到的评价
; _7 p. j$ z: K) Fappraise-time6 Y* t' c9 W- Q$ S: ~% X
;;当前发生交易时的评价时间3 ~0 i" S; n. p, c: b/ {
local-reputation-now;;此次交易后相对于对方turtle的局部声誉/ Q% D9 b2 U) K% x! g! g
trade-times-total- ] t! ]; [ m4 b, T
;;与当前turtle的交易总次数
, F" E9 X$ X; G' e' y& ]trade-money-total
; _& l, I) J% H) p. G;;与当前turtle的交易总金额7 ]' ^1 r$ F# e0 Y
local-reputation, f0 w+ E- B$ q; l3 A% Q
global-reputation
2 `' E; k8 O' u# z8 n3 Q6 x0 Jcredibility6 f/ t# J* t/ _
;;评价可信度,每次交易后都需要更新
9 J) k) s4 O; icredibility-all' @, e$ o% N# r1 v
;;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
" P+ H8 b2 K2 o a
; T. {; i, _- D' `. b! E' p- s `: t;;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
, a \1 E" o# e, Z. e/ ?credibility-one4 l* S1 ^& @' }; l" A) y
;;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0 x1 u& \/ B% r
global-proportion
" y8 t) E* j! g7 mcustomer
( w! P1 t6 B6 ?9 v1 j4 z( k4 E! ^customer-no
8 w& e9 f' O, d0 D) ^trust-ok$ Z- O2 m" t2 J- L% y
trade-record-one-len;;trade-record-one的长度) W4 k0 Q. Q/ G
]- w7 Y2 s, L6 _, b V4 I& G
: }4 V X7 o* U k4 b/ ~;;setup procedure" U% j' a% R, G
% m3 _5 J, K2 O. [
to setup
' B: c5 }9 y0 Y: _. }- F7 z
; m$ n! Y7 X; ~ k) o: k( t; Lca7 v `6 z# R: t& o& q: [
0 b% G# r% S) e; U e& z8 t! Q
initialize-settings
$ s3 V* i8 Q* t" \* n2 v4 d* [! E+ Y
$ F2 i0 B, }3 u$ e$ gcrt people [setup-turtles]
: z6 L9 i. u9 G/ s% L' t( h g( u% n& y4 Z2 W0 ^' L
reset-timer
( R" Y' Z3 \) A S
7 D9 m$ A8 ]$ f( Lpoll-class# \% F4 I6 W O7 T3 i* V5 p+ s: o
c2 L! H- {0 Q0 l: r
setup-plots
# P- |& y6 n+ P+ O# e) O# l
6 `* r' U& Z5 K# J6 Sdo-plots
@0 ?' k4 g; I* O. Send
( [9 r2 H( L# d7 x2 [; p$ Q3 Y9 V
to initialize-settings
( o0 b# \ H4 Y* u
& x1 |' \3 ?) w) D0 ]7 Pset global-reputation-list []
: ?9 y4 T. u* A7 r3 M; o) |* D) D7 ?# r1 p7 U
set credibility-list n-values people [0.5]
( @" s) V& h$ \% c/ C* U
$ O# u/ d5 `2 Q7 \set honest-service 0
9 V; q4 C0 b! S1 \9 N" Y+ V2 ^# O) a, U! s
set unhonest-service 0
9 F$ a, O& {1 Z; r6 n/ K. `% j, U3 i) j# E) l0 v# m7 {; X
set oscillation 0) n, f" _ x, F1 S: {( n3 S
+ Z9 O8 o: i1 s; E
set rand-dynamic 0
# Z. i$ [5 f! r2 P0 N7 p" }8 V, V$ Y3 J5 wend
$ X2 D! A0 M$ \- W2 i/ e/ g [* Z1 `
( w" R8 A/ t9 q% R4 T; Ito setup-turtles
4 @5 I$ Y# U l/ q! P; D) J) s- W- Xset shape "person"
7 @, u/ f6 ?' B* q+ w5 bsetxy random-xcor random-ycor
5 r5 b; r. Z5 m3 `6 R. z8 oset trade-record-one []8 U+ l0 O; l4 H$ B, W3 F S
s' O6 J. ~6 R9 M/ E/ Oset trade-record-all n-values people [(list (? + 1) 0 0)]
6 o' q- p5 C6 {, ]- k6 A7 |9 a4 M4 E y1 {; H
set trade-record-current []
9 P# z) M3 m/ x) C" gset credibility-receive []
2 h1 f* \2 {8 l. K6 k0 F8 r6 h, ]set local-reputation 0.5
1 j4 x/ ?& Z- ~& N, j3 a# i! aset neighbor-total 0
6 A, G5 V+ k0 ?( _set trade-times-total 0
4 z; H0 v3 k4 Xset trade-money-total 00 r/ [ P1 N* M+ ]
set customer nobody! _2 p) U9 H I' w- ^2 T& Q
set credibility-all n-values people [creat-credibility]
- w7 U) s: Z" V q# p" s' u5 eset credibility n-values people [-1]
1 d+ ~# |! t0 j+ s+ hget-color
# i- }: |; O9 @( I7 X* p, g8 i- q6 w" u) n: p% ^
end) w- A$ e: ~) Q8 Z( g$ m
; |# n8 s6 T* m* wto-report creat-credibility
0 r# ?& o9 @3 d6 @# Lreport n-values people [0.5]
2 q. n* e0 m; d' A$ F, S1 Kend
" K- A7 U9 o2 k7 _* y, a6 z3 {4 b a1 l6 n: P
to setup-plots
7 m1 n/ @/ v- U1 u5 b8 Y8 [+ d# B1 B) z# S1 }
set xmax 30
7 E2 V0 V, V) e6 T/ a
2 V+ |$ X1 F( J* m9 ]& L: t/ r5 pset ymax 1.0
% ^, m' c5 l7 L/ t7 K0 T/ Y+ W P! A4 z
clear-all-plots7 |' d3 L B9 i4 _
3 h( i' ?$ e( Z0 u' o# i
setup-plot1; s; @# ^; a1 `4 p1 s- n! j$ N) `
8 O* V3 m6 H8 O3 i0 @setup-plot2
{. `) d* R: T% e# |8 [9 p! h3 n! T+ Y2 I
setup-plot3
0 t+ P8 @5 G7 R7 r5 Tend
( P3 R6 L% O& ?# r
" Y: h( _) U. g! b+ E$ t7 |;;run time procedures
' C n ^5 i2 W- {! [2 ~
: Z& e7 n$ N9 q' t* S6 }to go
k' n Y1 F8 q6 |2 d1 e4 b5 v. a+ I) l9 e6 i) h0 ?
ask turtles [do-business]8 \9 f& T4 Q6 ~0 p% m/ I- Y1 r
end& N" j* `7 h; {9 H& x1 |2 v( e! W
( t/ ]( a, _* V yto do-business
1 M1 o6 G" Y1 I1 l$ u( i5 e5 B3 s
: z0 p+ n& @1 B* J! _' }0 O+ i0 r3 o: }9 b& w( k# h
rt random 360, E' b5 g' h; ~) r: g% s4 D% y: Q9 Y
" t7 B! S+ e# l7 o% I) t6 f* D! V
fd 1. p: q( G+ s0 O4 b5 ^9 b
* b. u# B/ i8 U' ]4 uifelse(other turtles-here != nobody)[0 x& e5 [& `" {1 H9 g0 e" g
# b; j4 ~2 d, X8 F2 p+ R
set customer one-of other turtles-here$ O& V2 x+ {1 N4 k4 K- V1 C/ i6 j
, {: Q$ Q& W$ ^1 P7 @6 ?2 k;; set [customer] of customer myself( Y$ m: ?* @! K
5 m4 \# O z# j$ oset [trade-record-one] of self item (([who] of customer) - 1)
$ W1 f6 Z4 F. [( J# v( @5 T5 ~[trade-record-all]of self6 j# i8 ?7 u: }: h& W) x4 M1 D0 P) r
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self; o+ n4 U2 [- \3 T1 m, d, Y
$ t2 x, O1 c; F6 u' Nset [trade-record-one] of customer item (([who] of self) - 1)' h. ?3 c( I7 |$ f2 [, f: u
[trade-record-all]of customer; a& [3 |9 s/ E# D" Y# N
+ \/ J, l; G5 L- Q$ ?* k
set [trade-record-one-len] of self length [trade-record-one] of self
5 i/ e3 X2 D# |% H, |- D$ I
' ~ R! A/ ]& Jset trade-record-current( list (timer) (random money-upper-limit)). x, }& K" }7 D; u9 j$ e
6 B2 \" x* e+ ^) T, Oask self [do-trust]8 m7 V K7 R5 n' H* X a
;;先求i对j的信任度
( V O! F' W$ [" s7 q/ N Q# \( p* W- A+ P
if ([trust-ok] of self)2 K7 W5 {' ]0 ^' `
;;根据i对j的信任度来决定是否与j进行交易[* }% m+ @. b, H
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
' F+ a3 m* h% R6 q Q& K
4 d5 V2 B7 I2 Q# p. J2 T[
" g/ N$ I. [# P) p, J8 e+ |: k7 A& K% L
do-trade+ B d/ N; O/ K# f: m, O/ ~
) ^$ H# l. w+ h8 Zupdate-credibility-ijl
7 Q- [& l( ^6 u& `# @7 u+ C: G$ f+ @. N- N
update-credibility-list
& Z& z3 X* ?2 i; t& P! l. h. R, `0 p8 @ b! f& {
8 G0 }' G9 R- W- c% \8 wupdate-global-reputation-list" y* A; U7 D. H# |$ p+ q$ [
; z+ P( Z0 T: G* Y6 T6 i
poll-class
( F. b# K5 s6 J. \2 w
# j- j7 v; p: j9 c4 r& w$ aget-color, ]# K, B2 z' ?* |9 w. Q9 p
9 S8 `' J: f( G$ H0 O; G1 X
]]5 y2 F$ r+ u: f. ~1 B7 L+ e
9 k, f5 r3 X) c* P F0 K;;如果所得的信任度满足条件,则进行交易
* m* X# J" |! P2 M
6 Z8 O& p2 T; h- l9 Z9 w% v[
( P, g, L, s/ a1 e1 S2 a* h1 s) o& O: X# Z) G( ?: j+ k7 \3 B# b
rt random 360 H& I# H1 A7 V/ x1 i7 E
' x, @" h& w! v) w- C
fd 1& b/ V. T H" h y( O
6 y/ ]/ a' c# @( I
]
, p0 k/ \, A' F) F+ {
1 l$ P/ Q; e% xend
) q4 B3 t) j9 w& c* z, K
4 }4 V6 c7 e5 e, u+ \, |2 w& Z, dto do-trust
" K+ N, X) n8 ?8 y/ ]8 j, {set trust-ok False1 O* z2 D4 c! |3 N
% f$ i# @( P7 ~" L9 S
5 l3 W7 e: x8 f% N( k
let max-trade-times 0; `1 \8 n2 d1 P H
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]], e, m# s; [* @
let max-trade-money 0
' Q1 z! J4 C V4 W }3 Xforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ R* Y% Y3 o6 _3 H
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))* K6 A# ]! }9 y; Z" \( t
2 @& G5 X* ]4 ]2 ]# S2 l% d
" x( ^$ j8 q5 jget-global-proportion7 d$ s* h% {+ S* a- `
let trust-value
/ k5 R. @5 K- dlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)% K- H8 D; I- O8 m3 a/ L" ~
if(trust-value > trade-trust-value)2 f5 @, F" e' P
[set trust-ok true]% N ^6 { f+ p0 J0 q C
end
7 T8 U$ s" Q. S+ y" i
8 ?9 a/ a* l+ \to get-global-proportion9 ]; n, C: S2 @3 m0 z7 V
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)/ c0 J; S i4 G1 X
[set global-proportion 0]
: J2 C( h- W& M- }3 N[let i 0! q+ x* M! i- @" e5 \" G
let sum-money 0" _$ \' i; i* `! j/ G
while[ i < people]
8 P$ w: C. \! D9 | u[& G' Y+ P, c$ B4 p' A" [
if( length (item i
, Q. e- d5 r# @ K5 u[trade-record-all] of customer) > 3 )8 B# p" ?5 [& \) ?
[" b- i9 { V' W+ p8 `' \/ p3 B
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))# o. r8 Y: I# ~1 f% M/ }
]
. b3 f7 {% \( c* X+ H$ l] i1 I C6 x: d0 o5 k2 O: E7 Z+ T: v
let j 0 e/ s% h* f& T$ o7 {/ ?2 A
let note 06 [" G( i7 C" f9 d- }: g
while[ j < people]0 e; c3 R: a# @( f
[
( ?7 C- V& i0 T; Cif( length (item i
* ]! N; f9 F" x& u* j) z[trade-record-all] of customer) > 3 )
' K( t3 s4 |# a, ^! _0 Z, P* V( n[
0 ~: k8 l- Q" d( [5 cifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
/ d4 p, F; y/ ~; n7 l ^[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
% V. D: |. d2 G+ B* {6 w[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]5 g4 H: A6 W1 E# B4 Z
]
# |; g/ {( o) p- O]8 O9 r" t# S, e! b7 S
set global-proportion note& L' Q. p5 o* A
]6 a' ]. h6 ?0 a$ r$ ~/ U
end- [6 S& J; |9 T9 k
" Y3 d5 F" C& h" [$ B1 }
to do-trade* F8 X; h: K! `% W- D/ _ C
;;这个过程实际上是给双方作出评价的过程
8 e. p* _4 T( Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
& _& i% z# B$ W' v4 R5 _6 F6 z6 U* {set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
& f6 o8 I k& _+ Rset trade-record-current lput(timer) trade-record-current
1 @- v; R. A! A" `9 @;;评价时间
: w7 W# y7 u3 s( Y, Rask myself [
" a7 X3 d9 i" p% \& g* I: Qupdate-local-reputation3 w) z; d3 q2 A4 ]# s0 x
set trade-record-current lput([local-reputation] of myself) trade-record-current7 s; y, A- A! H" f! s8 S0 M7 f
]
6 \2 e4 t8 g0 qset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) p8 h" ]2 w/ K% G% y
;;将此次交易的记录加入到trade-record-one中
+ x! J: @& l2 cset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
% P( D& g5 Y4 W4 v- Y( T0 N# r alet note (item 2 trade-record-current )
! z l' P( Z; J- Yset trade-record-current' O a0 v( ~6 s8 ^4 h& q
(replace-item 2 trade-record-current (item 3 trade-record-current))
6 V) _" K' c4 {1 X n/ J( sset trade-record-current
* C; p! d9 a, s6 A: D& l* F(replace-item 3 trade-record-current note)6 o/ ^0 g+ G H+ `
4 G# Y% ]6 a- V" d
/ @$ S# j5 |, Z7 a a) Pask customer [
5 I! r; u. Q" e$ ]! ~ x/ s. pupdate-local-reputation: @5 C+ g' N$ z: V- ]
set trade-record-current
5 X$ `! V0 h T: f- x6 r/ l1 ^- @2 V(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ! @2 E! Z1 h' g- e% ^. T
]/ |$ Y2 ~! G( U5 }2 h
+ C- \% e9 b0 q: L; b4 v; q9 z; u: N* \: l$ v% C+ D1 m2 `1 Q
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
& B7 m% u: J! U, e( p0 C/ I; N6 u" T$ o7 [
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
# t b& B" a+ S U3 f;;将此次交易的记录加入到customer的trade-record-all中
1 d1 _9 z1 w- C( Y; Gend
$ p |9 u! Q1 D) f0 X9 `
: L1 A. ?% M: c, a' vto update-local-reputation4 ?0 O$ H& l. X* Z7 N
set [trade-record-one-len] of myself length [trade-record-one] of myself
: H8 T0 y- K$ }2 p3 Q
5 D, S# o: @! v, O8 S+ B& i
, m' H' [$ _- k5 G6 W5 e;;if [trade-record-one-len] of myself > 3
9 m( f9 t V g5 zupdate-neighbor-total2 D* W6 {, z7 K, z3 I E% k
;;更新邻居节点的数目,在此进行 b, a l. |2 \; U
let i 3% z9 ~- o" f6 T2 B% h
let sum-time 07 n0 g! k- P9 `& V3 Y' P* R
while[i < [trade-record-one-len] of myself]
8 d8 T1 h) d/ L8 }& _) l- }[$ @2 w1 R6 e# T% e
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
' y7 k' |# K0 G: h C4 j- r* m8 qset i
9 U. e8 L" j- u- W- A( i + 1)
0 Q% F3 b! Y9 b9 f- g5 `+ W6 [: n]& r5 \ U) U5 F! C5 I3 N
let j 3
* X- E: M- `% q+ h' plet sum-money 0$ f, N5 B, d5 C3 p) O
while[j < [trade-record-one-len] of myself]
* X9 ?5 S& T F. v; i2 Q" ^[; K) B- C; U& K
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)+ l& x* K1 c/ V, D
set j
8 B; s+ m# |" y4 f( j + 1)4 Y! J$ k: o, o r! F( w# U
]
3 h8 b7 u6 W# W5 u) j- tlet k 30 Z- u3 X0 |- ^: H0 x
let power 02 B% a4 P. a+ K# `' w/ A# ]
let local 0
) I( M; C+ k H9 l& X: Q+ {while [k <[trade-record-one-len] of myself]( D# z: r6 D/ Y
[4 x# M' y0 W- f
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)
" H* _( t& f- u. \2 O/ A' wset k (k + 1)
# f# f. I. a; N3 c6 W3 ~5 `]
: L& s) X7 n8 w5 Aset [local-reputation] of myself (local)
& F- f- F/ r( \" g9 Dend
4 w. M) ~) Z- m E; S I+ O! U
# t/ Z) \/ e( F: [) Eto update-neighbor-total1 M/ c) b+ p4 I4 O
: Z- x Z4 W3 P5 r* x
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
\/ q0 V _/ S T4 l
, h- q/ u2 i% i; H
/ X! H. t) E: Hend
2 K6 X9 s/ |4 @% K& ~) z2 s3 h" T4 \3 p. X
to update-credibility-ijl
4 w$ }0 B7 x$ v+ x. g
* ? j, q* }; Q& r;;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。# I, A9 Y4 K" Z' w
let l 0) Z C M" s9 h2 [' K
while[ l < people ]
$ Y/ `6 H* j) L3 f7 ^;;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
9 X$ V5 E( ]8 r# G. H2 H+ `0 s[
: j1 U9 v! Y0 w/ n2 f! ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer). Q: L( Q1 ~2 W. g7 `% J3 x: ^% ^
if (trade-record-one-j-l-len > 3) Z- z2 S) I' W, z8 o
[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-one0 T' s8 S$ _$ L- k, S
let i 3
2 A5 ~3 v' t( M1 `! olet sum-time 0* D' ] U6 ]9 T0 P+ S ~
while[i < trade-record-one-len]- n& B# D3 O0 | k& X8 k7 r# l/ U
[
2 c; V! ]5 M0 Iset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
; X! T9 a6 B4 H) j4 Nset i
: |; A: q1 P# u5 s) l% e A7 Z( i + 1)6 K+ X! B$ b: h* L' l8 s
]
) h4 O$ t- ^ E* @% }! ~& ulet credibility-i-j-l 0
7 P0 u1 [* f6 S; z( l;;i评价(j对jl的评价)
5 j7 b, B' H: I2 Z/ x) X, Ilet j 3: s C' ]8 K! Y' ?& Q6 t
let k 4; Z; b4 r; P. @, F
while[j < trade-record-one-len] Q5 {2 ^4 F5 O$ V/ L3 s; X8 V9 {
[
! O% i* X. i1 X7 l' F/ Z! }# o/ uwhile [((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- R. r' n. L8 D4 y E& q# G
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)
9 k4 Q1 d' _2 d! ?% t" Aset j
1 I% B2 I/ P% a6 Z& o; e2 N( j + 1)6 v9 y% `+ R- Y( U+ G
]. U/ p1 w9 R) f7 I( x" V! e3 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 ))
) \7 s% ]3 _! ` \2 I3 B) s' x1 `, w# t5 p
1 {2 c+ P4 J! P* m; d2 N+ alet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 q% e2 n ?/ a4 j' z( s;;及时更新i对l的评价质量的评价
* O2 b6 l9 |9 }# dset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]3 v' B! c% X7 q
set l (l + 1)
! n- S, A0 r& h9 j! C3 F]5 ~' T1 X* i5 x: A4 I$ X7 T O
end
2 ~: }/ ]- x, i2 `+ D- E
: G) N5 R& S7 ~* s- G1 C) X: Jto update-credibility-list
3 C' @ H) N. N0 B8 m% {let i 0
2 s y9 N1 E8 M2 `6 t/ h! y8 Jwhile[i < people]
( a2 o+ m! W4 Z, h0 x y6 G[4 V* Q' B3 s4 H
let j 06 r. X& N( W" B) T n1 J
let note 0
( q- C, W5 q6 z) P- N" ~; X! Dlet k 03 `% n6 V2 t- ?
;;计作出过评价的邻居节点的数目& [9 O9 _7 s: x1 w" L' N
while[j < people]
- ?7 d# t- n9 a. M: w[- z& A7 V% M6 ~
if (item j( [credibility] of turtle (i + 1)) != -1)
- @1 A! D' h/ a9 q) f* P( Q;;判断是否给本turtle的评价质量做出过评价的节点
+ u) [& N& u' m6 q Y- {! H[set note (note + item j ([credibility]of turtle (i + 1)))
9 s( p7 n6 E( _9 m1 W;;*(exp (-(people - 2)))/(people - 2))]
0 z4 j( C' D7 G: d# g4 P$ bset k (k + 1)4 m: ^% o, p4 G- i- V, ~
]' N6 N# H* A9 } H. A- h0 P
set j (j + 1)
# Y2 p y$ ~. i7 j]1 }! x# I2 v4 y; R! a% g* W) s
set note (note *(exp (- (1 / k)))/ k)
/ N! O6 D; S3 a& {6 \set credibility-list (replace-item i credibility-list note); f; U1 g0 U* c* N
set i (i + 1)
0 W4 \2 k- e# l/ X, r5 l]
8 K7 I0 E* \+ k0 ?; Iend% H3 a/ S0 H ]4 I; d
: G, S$ V! A4 M! J4 v L" H3 q
to update-global-reputation-list
; X7 n! [* b9 c k% S* B, v0 Tlet j 0
( D+ ]! K! R" f3 ]while[j < people]
# X# e- r" b3 X[- g1 N1 `/ |2 i$ x' [+ G
let new 0& z8 S4 D& Z1 H+ R0 ]- K
;;暂存新的一个全局声誉
" x% D7 p' W2 O6 O1 p6 P" Tlet i 0
4 M- M- m( m8 w, s8 B/ @let sum-money 0
7 D( q1 `3 M* k9 g( e1 w& Ilet credibility-money 0, A/ I) L3 P: C5 x6 O+ T6 q
while [i < people]
2 A# _ y' h0 ^6 h[, G( z* v" f) m/ I
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))- y0 G# ^: X9 E" Z5 a$ p
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)): m4 M7 N% ^4 g5 ~" J
set i (i + 1)! H+ `; k" q" W5 `2 n8 ?, g+ x: w) v
]% V. V$ S$ r1 [9 K
let k 0
) E. }* \) j' ]: K2 r0 Y5 [ p3 ?. Tlet new1 0; h/ y& p. O8 o7 x) S6 _" w! q7 R+ {
while [k < people]
% |, _+ ~0 ~+ F[
, c! \! X5 U9 @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)" P s/ Y( Y( G3 C. g" C# V- f
set k (k + 1)5 ?- t3 Z6 I( J5 r- G
]
& a: S, v! y- C$ y. uset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 3 z H1 p" B0 C
set global-reputation-list (replace-item j global-reputation-list new)$ ~* m5 ^/ s0 ]! k8 Q
set j (j + 1)
; ^1 {+ V u, X( _$ f]+ Z/ C: S% S I' K/ x
end7 I6 [2 X7 @7 @0 F
, l$ L6 I1 j6 ^0 U, o
- E/ Z$ j- V; F& j
$ ]& B7 f0 {% \2 T) t" |7 wto get-color
7 }1 I8 _- z% o+ o* t) A0 ^4 A0 {3 V* h; c# N& A
set color blue
0 B' `4 F5 b! z7 \: a* C8 M I4 qend- |, J% p1 F; v2 n2 I
* H6 C9 d' |) t( Q1 G+ z& U/ J1 a4 a: Qto poll-class1 s$ {5 g# R! X
end4 a+ x+ B3 z( C' Y' e' G
: J1 o# S, u8 S) Q2 s! `9 o% T
to setup-plot1
( u% p, M& l- P0 u: w# F% {
( v! g6 e& z1 r4 D2 w: h" pset-current-plot "Trends-of-Local-reputation"
* Q5 r2 d+ p C4 R5 N# a4 t! |( f
# x5 }/ [' l4 b; @' o7 i+ iset-plot-x-range 0 xmax9 o5 w/ Y9 S% t
+ I |5 {6 U: W3 z5 Y2 f5 p" oset-plot-y-range 0.0 ymax
9 K: f/ Z% r. o$ x% e1 g6 Xend7 w2 }( s( l: i, q& B. d& k
_4 d# G, ^2 ~+ ?) y( ]+ C
to setup-plot2, h$ U Q2 c! l' Z7 h
# u2 s7 I: {0 x, z( a2 i
set-current-plot "Trends-of-global-reputation"
5 o4 r0 Q: `; d
8 [9 H3 b+ f9 a, w! a+ c* q% ^; Bset-plot-x-range 0 xmax
- w8 w' B, Z6 \& F) z# i7 q! p$ T) C* D, [" @5 a6 L
set-plot-y-range 0.0 ymax
* M+ k" K1 [# ?, r: z5 e7 Yend
2 [$ y6 m. L. t: P9 r; H- i
) X O& i0 ~, S8 Uto setup-plot3! y! {0 e% O- t4 h4 Y
2 J0 `. Q: D6 Oset-current-plot "Trends-of-credibility"
& z/ B0 }( a8 a" U: o! y2 V9 \6 t5 j
: H" k* g/ Z& T; U qset-plot-x-range 0 xmax
]# Y+ q0 V* c- X! X2 k( d! N; s/ K1 J/ L6 I9 B4 c; g
set-plot-y-range 0.0 ymax
" P2 g2 N6 G- o0 D( wend" M# z9 F6 [7 V% r4 m/ m2 |
, C% j$ ~8 @% ?. t7 w- o8 M A9 }
to do-plots
2 B8 Z, L) ]/ uset-current-plot "Trends-of-Local-reputation"7 r: j$ k- y% ~3 A, Z5 D
set-current-plot-pen "Honest service": h0 U5 \ P; y# ]: y j
end
) c/ m [" ~/ a6 Z A" x+ e, K2 q; z& I% v7 q* K+ Q! K
[ 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
|