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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
6 J* U1 s/ h% n; bglobals[
8 `. a& @+ o8 G4 `! wxmax" U( Z- D# g! L2 M9 ^/ l0 k
ymax& c2 Q% W4 d9 \$ q9 X- N' |* z
global-reputation-list
1 a4 z# L2 @% p4 o( G! K
7 H9 D- h% x. D1 W5 z;;每一个turtle的全局声誉都存在此LIST中+ s6 o8 ~7 O$ K) A, l
credibility-list" S6 n8 L$ H1 I0 |& n& p2 E) i
;;每一个turtle的评价可信度
: s1 D ?7 i" y5 o' D. lhonest-service
+ p, }5 y* p' munhonest-service" N, k* T2 ]2 D3 d
oscillation c# q% w! ?# t7 y9 c
rand-dynamic2 \. ]2 y( E. S3 |0 L- t) U
]
- Y8 Y6 H8 R0 Q
8 F5 y" y e/ d4 t, hturtles-own[
* i' a c5 h% b4 x! }# M5 C6 strade-record-all
; C/ v1 q$ b ^( P2 V;;a list of lists,由trade-record-one组成# r# a% |8 ]. o& m2 g
trade-record-one7 [7 k. f g) |0 J4 d
;;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( m q, N' o# i1 I+ s
; v" j7 I- G8 z$ P;;[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]]8 b$ d" b0 i: {; \; a4 n
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]. Q8 }' J1 r/ B) z1 V+ X/ ~
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
) g( d. i6 s% @3 ~neighbor-total
$ A6 u" Q' @4 U' \;;记录该turtle的邻居节点的数目' D$ x. X' K- [: U, N
trade-time
; d4 J+ ^* V- i% H4 H' x;;当前发生交易的turtle的交易时间 F4 i# m# r. {6 }8 n
appraise-give# N. m" I, x" u$ ]
;;当前发生交易时给出的评价
# P8 A+ J1 P9 p# u+ J7 d( M9 Aappraise-receive
. _& A7 b7 S! Z9 y* R1 P3 U;;当前发生交易时收到的评价. j* b k) h3 t& x: K: c$ e( g
appraise-time
' ^$ ^- o) E3 `* S' x3 @& D5 U;;当前发生交易时的评价时间
' t! f! E, g k$ ^local-reputation-now;;此次交易后相对于对方turtle的局部声誉
; G& g4 H% [0 k* z; g5 c L9 r# @trade-times-total
8 E9 f; g+ V3 W m7 Y: a e: v. c;;与当前turtle的交易总次数
|" t9 J/ ^" V4 R7 G3 z6 itrade-money-total) [% N3 c4 n' k- m$ @9 W1 ]
;;与当前turtle的交易总金额
, s1 J% w! Z# v9 R+ hlocal-reputation
4 @# z$ P$ w& g6 z4 p$ D* wglobal-reputation
' A: n& g6 |+ |credibility8 G9 Q5 S( t, i
;;评价可信度,每次交易后都需要更新: K- z5 `6 o9 d* Q0 |4 O3 H ]
credibility-all/ z# _ B( y, s; O1 a$ H" @
;;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8 c E# O- S+ b6 l
0 X0 C; A M5 {6 p' I1 D$ p8 g- M9 X;;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
2 u/ j7 w6 D* ~* I8 ]credibility-one
7 K) { r6 k2 P- ], Z. ?;;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
/ Y3 n7 V: l) h- O2 Zglobal-proportion3 r S+ v7 B6 c/ _# ^
customer
! p: {6 r; K+ M- z6 a, p/ T# lcustomer-no
5 J/ L9 h& c6 u) E/ v0 a( Ktrust-ok5 |+ R' d$ e7 i1 U$ T% d/ g; s
trade-record-one-len;;trade-record-one的长度
; ]% B1 C9 q) r]" y; c2 c! m9 x% \% j
0 Y4 w8 K3 r2 I) o* f3 _' D! q
;;setup procedure4 N+ y; ?: ~; @' C# Q2 ~
9 H3 G1 U2 |$ N, X3 n7 O
to setup
9 I( D6 y! ?# j/ V D3 y0 ?/ M. Y8 h7 I. G9 D7 b0 @( S' D
ca
% D3 q1 m/ T& n+ a7 n) b
+ |( q4 O, L, ^& j- `initialize-settings
* Q a4 V/ D9 b8 x9 H* n( L0 ^ p7 S; z9 j
crt people [setup-turtles]$ o6 l" z1 f. M' z. ?# A
, P% S( U4 K. k6 u" R. ^& Dreset-timer: _2 w9 |5 Z# Q8 f J2 @1 v* ~) s
' J/ s7 o4 ?5 ~7 C8 N* |- @2 Epoll-class
7 Z' o& M% c5 B( ^) Y- ~, F
) ]8 D: \8 h# F) W7 M/ I* P! Bsetup-plots
& ?/ C, c- \- a G( z% m2 V5 L. Y. x9 ^" k
do-plots: `8 o: t1 x# c2 e
end
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4 a5 d$ @: {) @5 j* Cto initialize-settings& E- H p) Q: x9 V7 A6 H
3 K( r8 R# o7 i3 ~* O+ Z/ _$ p
set global-reputation-list []
! D2 M$ h' L. V2 @! b, y K* r. J7 f9 {6 G$ ^/ Z3 L1 O) f K- W
set credibility-list n-values people [0.5]
1 V% H0 u& n9 I0 h
1 B: R$ M, S( E) n- D4 q. p3 W6 yset honest-service 0* q8 e' {1 @; B
3 i* @* c0 u. Nset unhonest-service 0
. D7 Y8 x$ ], P) V. }5 x/ H$ U8 j3 i* N6 K: o
set oscillation 0; w# C l! P( _8 V) Y) [
; o. ?: T! P) t* l
set rand-dynamic 0: u3 ?- l" X) t; j/ A! ^
end+ W% |. u$ Q0 ?" p) @5 t
# B9 O+ e0 u! ^( p7 _; D8 Yto setup-turtles 7 g; x: d9 M, z
set shape "person": `6 M5 N7 x/ z/ M& J' p2 P
setxy random-xcor random-ycor
8 g* {8 v/ F) iset trade-record-one []
% D1 o! s7 f' d' V+ g$ Z! K7 \% u4 G1 q( D! u! L
set trade-record-all n-values people [(list (? + 1) 0 0)] 0 Z( U* S% t4 J" V
0 f; N" o% {4 T& cset trade-record-current [], O+ V" J* T" E3 g0 i" @. j
set credibility-receive []' ^, a* ~: z6 _9 }5 C/ s, f7 x7 L
set local-reputation 0.5
" Y# P: @/ c6 }+ J' p- Pset neighbor-total 0
$ R1 b) |" m& P& e1 W u4 n0 yset trade-times-total 0
5 c+ Z6 @' ?: G" Cset trade-money-total 0
3 D9 I* o. Y6 R! M& k5 ]/ cset customer nobody
_- y7 S; k. O- Kset credibility-all n-values people [creat-credibility]5 b+ `9 ]; \2 @$ F9 }6 h9 ]# G' Q, p2 R
set credibility n-values people [-1]
2 ^: t7 r% ` y, s% q4 z& Fget-color
; z9 [* ] ~0 Q6 V& m4 {, M: _. p/ ] E' e4 f4 A
end
l' E# d0 k* T% A! t
$ ~5 z4 q$ g6 E' I! [5 Nto-report creat-credibility
- L3 J. ~, @/ n( lreport n-values people [0.5]/ A0 O% S: S5 ^$ l, k
end
; \! ]- B7 {) Y# d. s' A+ T% C ^& s$ R7 W( D( U3 t
to setup-plots4 x3 v! U0 n0 e' q7 Y! ~' B
0 r- q# Q/ H# }1 o+ d/ f3 b3 eset xmax 30
# }- T* C- o. X* l9 A5 c
3 r8 p# k, z3 }set ymax 1.0
& w! _0 m/ A! ]. E$ j- _/ S0 G, S1 G P; `& i/ U/ B9 j8 J9 ]' Z
clear-all-plots
& b* i. D R* n; i1 W; |
' J2 T% e7 z& p* [& W( V4 ]2 M# Esetup-plot1
1 B+ m( R. C* H+ B9 m5 y$ v& g$ c& a/ S' X
setup-plot2
' v& u' P. u3 s+ s2 z) {" Q
0 B6 s2 }7 Z6 O6 s. msetup-plot3! C$ G8 g3 I% p8 G, G4 ^. ?
end# _% d. u9 F, ]4 D0 A9 c" R, g$ F4 f
) X) g1 c, i3 }. J; T2 M
;;run time procedures
( k" p+ Z" \% P3 _# I& u' Z* H; r7 D' D' M4 Q: x
to go/ H, p% K, x$ K
" O$ G1 ]. i9 C, p+ pask turtles [do-business]! ~* s- N" a0 M6 E t- G9 l
end- j6 M5 G* ^3 c
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to do-business
5 F5 ~1 z( G4 b7 o' |9 ]' F8 a2 d# H4 M# ?3 b7 i' f3 F
9 Q7 j9 k* V+ E+ f
rt random 3600 g- l* j, `+ ?4 m: a# a
" v; o8 t2 W1 V1 b( ufd 1
9 B% H7 j6 _( O# z* S9 h9 k$ B* f) h7 ~3 n* Z8 K9 H/ I$ x: b
ifelse(other turtles-here != nobody)[: |" P, w- T( |( A! \' q5 J
6 p2 v$ q% l0 j0 f5 {7 o1 u& Zset customer one-of other turtles-here6 z- O7 F1 |1 S9 s: [4 C! T# j
! V) e3 C) O/ i3 ?
;; set [customer] of customer myself
+ P1 e$ a+ V- w. R
8 b8 f( Z8 b, ] wset [trade-record-one] of self item (([who] of customer) - 1)
8 K. M! U# S) V/ M[trade-record-all]of self5 L) a8 c ]) d( [
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
% t& v! V8 ~# D. |8 v! s2 _6 [. ~0 b# s W
set [trade-record-one] of customer item (([who] of self) - 1)
# J5 h1 M& o, {7 T3 M$ }+ m; Z# [[trade-record-all]of customer
0 ~! Q3 h' h1 ]
A% m! ~0 M$ @& f6 d5 zset [trade-record-one-len] of self length [trade-record-one] of self4 I( V" r' [% B( Q" V5 ?: M0 y$ H
5 Z7 `7 y$ m, ]+ @- e$ Kset trade-record-current( list (timer) (random money-upper-limit))
# u9 R8 c& ~2 ?2 a5 |* F1 Z/ c- ?! Y% h* \
ask self [do-trust]6 S% r( F [5 m8 K
;;先求i对j的信任度
8 Z( g# }) A/ j% W+ o( e5 T' R& w- V
if ([trust-ok] of self)
4 Q9 T# J# {. y7 J1 P3 V;;根据i对j的信任度来决定是否与j进行交易[
+ a0 ^) s) m& f3 O6 rask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
! y- {4 b. t# _( L+ v1 K- ~% U5 m
% p7 q) H: _& m& @% N* d) d[8 c- c# W; \, r$ g. _: b" E4 G
6 p' M2 \+ u' Y( |3 c$ m0 udo-trade7 {* ~/ f9 Y& j1 ~+ z
4 }* z. ]: u& k( F& K D/ Jupdate-credibility-ijl
8 t+ P5 x% S" a8 p2 P! W& J/ G1 i
3 ^! K3 t6 Q. t K+ ^' {update-credibility-list
+ b3 w; s* B6 J. u6 P; ]0 P% U, G+ {9 s7 g4 P
' K! O: p2 t/ j& S* O- F" K4 `
update-global-reputation-list
5 E2 u( R! D" D9 ^. ~- ~! E3 U! e; r! g* Q1 n8 J
poll-class
' @4 r0 a {# O* M: s" e2 F% N
/ T7 _, u- A0 pget-color1 g9 u9 X2 u( v( ^7 ], p- H0 U: o( t
0 x3 H" n, v. i0 S. \
]]
8 p( h8 K3 D. ~) r! x0 x$ ?) D, Y
;;如果所得的信任度满足条件,则进行交易
, Y5 e9 R( [% I* b2 Z8 n! _
- g8 a$ T t& h* h$ A[" @9 o0 J: L( n
0 [6 h: f1 t9 M- e3 H- f
rt random 360) R) V& |! D# P+ l
3 e) M4 w. e- R8 |" ?) m& E
fd 1- T) ^) Z @/ |7 y' ~: f) t
8 E* X7 m' c, X2 a6 T
]
" c: E+ Z0 X& Q$ D. a& s4 p0 |( e* v) E9 g, {' W
end9 k. @6 w i0 u2 c2 m8 _6 c
2 o9 f1 g- a) w% Z/ @. V& ?
to do-trust
& \6 @' U9 Z* ?% cset trust-ok False
, p3 V4 h6 D2 ^) S; a% Y. x
) E4 y: z4 K1 n6 P
7 C( J- o U5 c" x8 K! @ O9 flet max-trade-times 01 e! R2 s7 t* a: W. `- G
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
( F7 j4 S, g1 z5 B8 Blet max-trade-money 0/ \# M) T: X# a5 x2 B) A2 I2 [* C d8 G7 y
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
* H# O; h! c4 g1 D" b% c. K5 plet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))# y; \$ V6 {, U' o, y) F H
* P _7 ? g. c( @
, {/ J8 C# V# I% O! P4 q! ]get-global-proportion9 t& r8 ]% R& d9 ~% u' e
let trust-value$ [* p( c) v: Z' [9 i" @
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
! Q, Q: p/ n; Q% bif(trust-value > trade-trust-value)
8 ^2 Z9 |! G" `[set trust-ok true]" `5 j/ Z6 i" ~5 y
end
% q) K4 n" s! e4 Z3 N: _: q* ^( g* O
o1 ?" C3 E# Z" ]9 j/ \& Lto get-global-proportion
# c3 s! J: d# @! m+ p1 |ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)6 d" I$ K! g) V: \# k
[set global-proportion 0]' O# l( B' S9 ]6 [, a
[let i 0
' c8 i- `# o# g# \let sum-money 0) a) \1 r5 w$ ^1 L" O0 ]( I* C
while[ i < people]
& f$ k& ~5 W! ]1 _/ ^[
0 Y, E9 X& W/ D# Pif( length (item i
6 J1 o5 m H7 L% Z[trade-record-all] of customer) > 3 )8 ^( I( `: C) P I/ H4 M+ ?: r8 ]
[
: X% Z. G$ W' c$ k! q' J- Wset sum-money (sum-money + item 2(item i [trade-record-all] of myself))* c: O4 R6 ~8 e: G- ~! C
]/ [5 n* Q& f( c) O- u
]
% ~6 h+ e- A! v. ] J1 e3 Dlet j 0$ S; c2 h9 o) F' x: Q/ g4 G
let note 0; x w8 B. U9 L# B7 p$ S J( d
while[ j < people]/ t5 J7 \1 G* D6 N0 y0 S$ {8 f
[
j; c5 M- v; v D4 j! e* rif( length (item i
9 B( N7 j$ C% R% I' I3 n[trade-record-all] of customer) > 3 )- s# E2 h. y& J
[) j" a. B% ?% O9 ^3 L! g
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 b% A2 d: Y% u8 F[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]; q% b1 r( _; S- w. U
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
5 ~& E" D4 |: }7 f]. }# ] t7 s: Y h
]
7 A3 A- t* _2 dset global-proportion note
( Q% n S9 i3 A+ O4 y& m]5 W. d0 P. }' Q5 b. C
end
' y. n; Y2 V F) f" U: B/ P. {5 x7 D/ ]8 Q
to do-trade
; U7 S _! {$ H: Q# k; A;;这个过程实际上是给双方作出评价的过程) b5 N: ^( g0 r! i& m
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价* Q0 X o) S6 b, y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
5 f+ G* ~' f; b+ K, G/ Hset trade-record-current lput(timer) trade-record-current: o: m) e6 U* s( c2 h/ G
;;评价时间5 p) H5 L* F7 k
ask myself [
9 f2 ^( j4 y1 `+ t$ ^update-local-reputation: F3 \ f6 Q& G& E" }5 ^
set trade-record-current lput([local-reputation] of myself) trade-record-current. Y' ^0 F1 i- A8 F6 d1 N; f, X q
]- {9 a; x4 m! k8 P$ ?+ v3 Y. R
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
; k% P1 ?% a0 |8 T;;将此次交易的记录加入到trade-record-one中1 Z( y( J/ ^- y2 h; T! J; T
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)/ V; U2 V* ]' J
let note (item 2 trade-record-current )
. `7 D) [* s& s: Tset trade-record-current
3 h+ y) b7 R" @( Z D(replace-item 2 trade-record-current (item 3 trade-record-current))* k( E j2 _2 X2 W* l
set trade-record-current
% x+ i- r# _) [: p: `+ e(replace-item 3 trade-record-current note)
! | h( W6 d5 }, j* }% f( {+ [ p# F" z# b
+ B- s8 Z( o' g+ m8 q
ask customer [. s$ n4 I+ D; S. T* v$ X. x
update-local-reputation
( V$ u4 d c2 z2 l1 d+ Sset trade-record-current
& l3 q& f* [( W% c* F* n0 |(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + d; y' D% d. r
]
/ i8 z) U( _ y
5 j! O- j/ \: }
/ o4 f% p" V1 {. pset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 }" t4 z' [4 U+ H$ j6 p; d$ X" o
& y/ l9 A' d6 Pset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 c! y% S+ n3 i8 |
;;将此次交易的记录加入到customer的trade-record-all中: e& w; g4 t$ }+ y ^' }1 V2 J& I1 I
end; ~* }& y! f1 {2 c
$ L5 z. `* \* o
to update-local-reputation' b) K) h, k* {1 ], E- B# H
set [trade-record-one-len] of myself length [trade-record-one] of myself9 u1 T* n0 a A7 K4 P) y/ |
9 N; ?# {& e' i3 A! ]: U( E4 ~) X: c
;;if [trade-record-one-len] of myself > 3 $ n1 V* m+ x& D& V* k6 I
update-neighbor-total
9 C6 G3 V, D9 u5 |3 |;;更新邻居节点的数目,在此进行8 G$ T3 ~6 I' q# j( l$ I/ j, N0 ]
let i 3
+ V$ `( y, D3 \let sum-time 0( l6 B% Y2 P: d: W/ u& d6 I! T
while[i < [trade-record-one-len] of myself]5 \7 r) r" o2 R. c0 v
[
M& ^# F2 {. Z- n; Wset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
- k9 e& A% `6 M" `" A/ \' g( oset i# G9 M4 ? g1 d- a5 c O
( i + 1); o6 _0 R2 S: ?: h* [
]
8 {# [1 G3 p( m; [+ X: V4 nlet j 3* A7 t) w% f. W U% K0 x6 z
let sum-money 06 b0 J$ Q5 i" O# ]
while[j < [trade-record-one-len] of myself]
. j+ z( s& q0 r! v- i7 }5 B[. y, H5 ]/ y0 I+ n
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)7 `7 G1 J* B1 R* P# F
set j
, b- B9 o/ {0 u( j + 1)
' y6 \% N# H, c4 d, R% m2 H9 L]
/ e1 Y6 }1 S: z( o* u9 elet k 3! w# `: S' A+ T6 K2 Y
let power 0) c; W( n# }# U+ ?5 s- z1 Z+ V( B
let local 0
! L* k4 A: `! K) g* swhile [k <[trade-record-one-len] of myself]
/ n! d; C8 T3 X1 @[
3 I9 u3 S. C9 B: C! D8 p9 fset 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$ x" D( a- dset k (k + 1)( ~0 v& \: H) D. E: [' a
]9 W# [3 b' V+ F5 S1 @
set [local-reputation] of myself (local). |$ i# W: B1 @4 e0 A! q0 P
end0 i1 s. x5 c/ O9 v3 O3 P- U, u
v/ `1 U q# ~) s8 B. [' C# ]to update-neighbor-total
2 Y, m. n6 L# q/ q, m
. |- d9 y* v9 @, m# a7 L6 Rif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
! A# E5 w* |' e
0 ]8 X. G7 e; K" p
7 o2 ]) Y* A/ u; x7 tend
& i% B8 @1 W" D7 I& A3 v i9 |! g2 Y+ S4 ?4 m
to update-credibility-ijl
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;;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。
- m( d* [3 O5 |0 C; Z6 wlet l 0
& ?& k% H- V7 K2 _' E, hwhile[ l < people ]
' F* e& j0 D9 r) t;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)) @, F( O6 e" [# B( B5 w
if (trade-record-one-j-l-len > 3), N4 V5 |8 P, q, Y4 u3 H- 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
+ l( s t# `6 R- j; l; k+ Nlet i 3
- B) x* Y" ^2 _* U- Olet sum-time 07 Y2 G5 }9 D& g! X' y, h
while[i < trade-record-one-len]
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, o0 z0 d7 d8 r+ `2 h. O5 Q1 wset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )6 q8 i ^! O8 a- u* H
set i
9 F% |& z' E6 v* }- _/ a( i + 1)4 D j% r6 s9 ?9 v+ |5 e# Y
]1 e% M- l$ p4 @* {5 {; ^
let credibility-i-j-l 0% h, H2 S* ]1 w7 {- p; f
;;i评价(j对jl的评价)0 w# Y' {* I7 L1 X1 K( i
let j 3
% e J! w- M; Jlet k 4/ k/ `* c5 I: Q* q
while[j < trade-record-one-len]3 G' b; h$ ?( @$ }1 ?# h) Q
[, W$ [6 z6 E1 Z4 R
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3 h/ i% C4 W9 ~. F6 B7 W
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)& T$ {/ y8 X& z* e" ^
set j% H5 ^7 X- b: d, z% F
( j + 1)
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2 \, J B5 q F) N6 L5 |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 )): L% @7 k5 ?; o0 S% n* J3 ]$ a
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% [: o5 o0 ?+ R H; [, A* Clet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))& ^1 G& S; K- U4 _
;;及时更新i对l的评价质量的评价0 O3 |5 K% j) [ p' ^" ~. x& {/ \
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
% d- l& v- G' R1 c6 A$ x! Bset l (l + 1)2 q) ~; Z6 d* y2 V' w
]) P$ y' A* c# x) ~; _1 e8 E0 p
end
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to update-credibility-list. U/ E0 O1 q2 E
let i 0, q& H& ~8 s7 f4 K* ~/ A0 x! M
while[i < people]
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) g9 q- W( G1 u# R( |let j 0
% j8 k7 V7 R& N! V5 j3 Wlet note 00 G5 x, r6 m7 k+ ~
let k 0
& o E) v$ F" {& E, z ~;;计作出过评价的邻居节点的数目
4 `$ j# Y" f. y& _# g: R, ]while[j < people]
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if (item j( [credibility] of turtle (i + 1)) != -1)
0 \& u2 o2 q1 F3 H0 G+ ^;;判断是否给本turtle的评价质量做出过评价的节点
8 J, z) ^. o% Q" l2 ?[set note (note + item j ([credibility]of turtle (i + 1)))
7 e5 t) ` o6 ~) s& A5 w$ i;;*(exp (-(people - 2)))/(people - 2))]! Y1 k+ ^& B$ l& R: n5 _
set k (k + 1)7 F, y. _4 c: A/ J/ |+ n
]% z; m3 E i1 p6 K: u, O: V K5 ?
set j (j + 1)
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set note (note *(exp (- (1 / k)))/ k)7 l# w4 x) H% }. k I
set credibility-list (replace-item i credibility-list note). k0 A5 V2 d D
set i (i + 1)/ w; h2 w# {" J! j' _$ D: S
]
3 _+ A- N+ i- ^& J, ]9 q7 Z# m( _" Aend( E5 m# _' s% B$ k4 t; {+ G, w4 W
; E H7 D+ s9 E; `# ~) y! i# H, |" X, r; Sto update-global-reputation-list* r5 s7 V% t {0 ~% O
let j 0- m& v1 n" l* e4 v2 y9 ~
while[j < people]
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1 ?5 o( Y" s* p, m+ [. I. Z2 B, Llet new 0
: t$ T+ Q0 g6 Q" ?! G7 {! [;;暂存新的一个全局声誉
+ b7 d5 @6 B. m' r) P9 x: ^( Qlet i 09 [4 c( F( C |' \, H
let sum-money 00 q. h0 m+ V, {
let credibility-money 0
! S2 g! m- s1 v- Y: H9 Awhile [i < people]
. [( ?) c- V, V$ {+ U7 I( b/ o[
) ?& \0 z F+ tset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
. e( u9 q/ C$ i5 M3 t3 `set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))5 }! _8 J# `3 v$ d
set i (i + 1)
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& f. l8 Z. }* J$ {let k 0
" {$ K% ]4 K; Z6 m9 xlet new1 0+ K+ b! n% O6 W9 ~, n& A3 U1 w
while [k < people]
3 i5 _+ }! B8 ~8 U[
+ ^. ~7 v1 ?& q3 X$ V# n+ }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)
2 ^' O! x) u& P9 e. Hset k (k + 1)6 m' ^* G2 Y* q3 h, J/ D* g3 F
]
/ `" z8 I0 D5 e" x/ jset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ t$ I% {+ T! _1 Qset global-reputation-list (replace-item j global-reputation-list new); G1 M8 o, @. {7 N( ~! U5 v
set j (j + 1) W2 j1 V! H) b+ U/ k: _ _4 ]
]
( K0 n7 V; g; _- e# Cend
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+ o5 [' J( ]9 lto get-color2 h6 N) D. i+ X/ W6 j& s
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set color blue. j+ G R& `9 U0 A+ w$ j# D
end
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$ b$ P! Q( v6 T3 A. Q! S' \to poll-class
8 X/ w( P. |- d0 iend
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to setup-plot1
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set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax9 |0 m4 x) x7 O9 |4 e W
+ z- z; P- ^# I6 |set-plot-y-range 0.0 ymax
7 l4 D" j2 ]" _/ m/ Dend
5 a+ f. S6 [9 q( d# V0 }( u
) a' [( C: `% ?& j4 w, ] H" Yto setup-plot2
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set-current-plot "Trends-of-global-reputation"
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8 I/ m, Q; n4 L+ d j5 Xset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax
2 Z0 w! D; v3 E! C( ?* Aend
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to setup-plot3
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set-current-plot "Trends-of-credibility"
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: U' W8 [2 p4 F, c2 Nset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax) t9 _( t8 L+ Y+ Q% P H
end/ ^0 M5 T' ? k2 X- @. V0 i
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to do-plots
0 o4 K. k$ N p# s/ Yset-current-plot "Trends-of-Local-reputation"' G+ f+ I' g+ ~1 b
set-current-plot-pen "Honest service"; R% b. @' w8 o+ j3 z# d3 z- n
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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