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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
2 a2 X0 a, ~! {$ M+ c `globals[
, J& w! P; n2 G: _; T" ~, fxmax9 s: u8 F' B6 Y1 m- B0 K
ymax4 F5 a2 u4 d) C7 o
global-reputation-list) e& c* g% u% v
* O4 R9 m' N, k;;每一个turtle的全局声誉都存在此LIST中* I* T3 N6 m3 F
credibility-list
6 H' s, o+ g: u1 ^2 }/ j: i;;每一个turtle的评价可信度2 q( b: S- v: x
honest-service
3 u+ j" }0 I) q( iunhonest-service: q/ i ^0 t) U% `* _2 b" H
oscillation
& q1 q" X+ a6 r" S# `' u! Urand-dynamic8 e, P5 I4 b. T1 ]+ c* B" K% c
]
! f. l' s' z& H6 s/ K9 T( B- y d6 j) v. O1 H
turtles-own[
+ y! w# }. r) ^3 x+ Rtrade-record-all
( S9 D5 T+ x' b; };;a list of lists,由trade-record-one组成, d: X; s( I" x+ _. Y( s& i4 l
trade-record-one
1 F2 w( n) W5 j' I. c;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录* [9 @+ a! t& Y# G/ ^, u! V9 m
@' f1 ]; U/ }* Y;;[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]]+ c# F1 O& b' O1 r; c( c9 r
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 ?0 [0 M) P0 x1 V* q! qcredibility-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. U+ A v5 X* y3 T% q
neighbor-total
# ?$ \+ s0 d! L7 `3 s$ u% k' T5 H;;记录该turtle的邻居节点的数目0 C% Z% E, @$ l. i7 d( v$ x
trade-time
9 t; K! z( D: k& Q;;当前发生交易的turtle的交易时间. s2 O8 V. X9 j' f; D: F1 H
appraise-give
k0 r( [) _: C4 v! e;;当前发生交易时给出的评价/ k' c2 Y9 a) B( X3 u
appraise-receive
1 p. j: i6 v! Q. X;;当前发生交易时收到的评价
8 G! W0 B8 ^! ]( A9 T: ~appraise-time) t) W8 \+ B5 X
;;当前发生交易时的评价时间
2 @; E" Y- r$ p- tlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
( O; o+ w/ ~& B' {. O- itrade-times-total8 H5 U( E2 J6 z
;;与当前turtle的交易总次数
8 c$ w6 @8 W8 n6 b8 C' {; ^trade-money-total
) ]# g* I1 I7 U9 G/ n) S8 D;;与当前turtle的交易总金额
* X1 D" e8 }* N+ I( y; \+ dlocal-reputation! o4 V- |, }$ b; W8 R; U0 Y
global-reputation9 g. I' Q2 O* A8 o
credibility
2 Z( o( M* {1 D, ~5 y8 L0 J;;评价可信度,每次交易后都需要更新, \4 b4 Q" C) K3 w% w
credibility-all
- B% O% @. }( O. e' d4 }: U/ 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" _% J# w4 P$ u3 D) w
( n( ]- u' l5 a! F5 l- 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0.58 B$ s2 n- z L2 ?
credibility-one/ J0 e& _: u) |( {9 J$ _$ T
;;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
# o$ l- r4 O+ L. B' sglobal-proportion
: b/ \" q! N- q9 e5 I- Xcustomer
, C$ w5 t9 w9 H' Hcustomer-no0 N# c% V6 `. W6 ~' g9 F5 s" N
trust-ok
* V( p0 O$ Z9 o; j6 o; ]/ Vtrade-record-one-len;;trade-record-one的长度
6 h8 R& A2 Y' Z# O3 e! W# ]8 u* l$ J] Y. ^$ f9 `6 ^! r+ ^
3 W- D- s$ D% `' {
;;setup procedure: r [) w& v7 E6 O/ m @
$ E# X4 G) |' g3 i0 E* T d/ x; {to setup" S5 p4 X, g# @( B& r/ {+ ~+ D4 ?9 L2 ~
! U& b- F1 L; O2 V
ca1 g6 w1 r! c& r) G! l o2 d6 W
6 t& d3 _1 i% ^" r7 `initialize-settings
6 a. p/ w1 y6 z0 R5 J6 C
; D- h- ?3 G) }% icrt people [setup-turtles], H7 Y+ I) w( H7 j1 h
$ M1 _5 Z) H6 O; L
reset-timer* C8 c+ K0 \0 y4 w% A. h. n0 g3 W+ r
- O: j- w2 L, C! Q, q/ C Epoll-class
( l, p a2 o0 [/ L5 W! s9 Z/ W1 C B0 r4 J. H' o% _0 ~$ Z o1 ~
setup-plots+ h" X4 ]3 E1 @# d3 i# W
7 W! S4 c$ k/ S% b( ydo-plots8 b- v7 x# Q% c
end
" j2 e$ w/ ~0 u. s- F8 N
( g8 _; l8 z0 Z7 Wto initialize-settings6 `+ u+ l5 I; g; Q' J. f
9 ^6 Z/ Z4 y3 S! ~% O1 n" e
set global-reputation-list []$ L. C1 h) B( S0 \* h! P, _
2 @8 w6 |; m5 C3 v
set credibility-list n-values people [0.5]
) _0 W1 I+ u) f3 D- @' g3 N
9 `5 L2 _) T1 E; H3 d) Vset honest-service 0
3 W& V/ {; \3 t+ e. Y" z; {3 l0 u, F* F$ z, s: `" F) t8 a
set unhonest-service 0
8 B5 R' d/ v1 y2 \ Q
8 \7 y. o5 T" l; }" ?set oscillation 08 w% Q: v" ^8 a$ b+ O7 R
2 O0 P6 g3 e& t j6 c7 k% d5 h2 L9 wset rand-dynamic 07 Q" D9 n& @8 A6 s
end
* ?# t( g& S' l5 B, _
/ ^$ O( i0 M b& j9 t8 @to setup-turtles ; Q% s2 b/ W `0 p: j# H- a* q5 i
set shape "person"
& Y* a0 D& w0 [setxy random-xcor random-ycor
2 c1 B M$ t+ Uset trade-record-one []
# Z5 f4 Z( [) G U4 t. a5 o4 i7 D: _: r" V, p
set trade-record-all n-values people [(list (? + 1) 0 0)]
1 \% T, X1 O, w% X4 }, J4 ^+ T! Z- Z' Z7 z5 j8 K
set trade-record-current []
5 [' U: |! }8 a U0 q! @set credibility-receive []4 ^8 ^4 I$ c5 e! o7 c2 f) L
set local-reputation 0.5
/ u) J$ z/ e7 iset neighbor-total 0
8 e+ b4 h1 [, F" j1 X4 g2 {set trade-times-total 0+ n1 u7 z3 w* e
set trade-money-total 0 V. N9 }. Q I @+ @! Q
set customer nobody; h2 m) m3 U% P- n$ B7 `
set credibility-all n-values people [creat-credibility]! u! J5 F" D l/ `7 H
set credibility n-values people [-1]! \3 w, V }' h5 Q
get-color. z# O" A" _9 V; E$ t: g) w
& ^$ P$ i, d& N: iend# i' l5 k0 X+ N q! P$ |
: N7 N5 k6 Q( V
to-report creat-credibility
" }* ?/ m6 ?$ ^; f8 \) \) Areport n-values people [0.5]
8 L- p- h6 K8 _: ^6 M8 ]end, p a+ k8 Z' o2 |; v* t9 l
( Y2 u3 i+ R/ v! N( `( z* \
to setup-plots( k* b7 s6 [$ [
0 a2 z8 u* _. m
set xmax 303 d1 e9 N- n& V Q% g5 k" f
: G1 ^* v9 a9 `" e4 s2 _3 |" t
set ymax 1.0' v3 \4 T+ A! J! L9 @- I
# c Z) E4 ?: l( A Zclear-all-plots( `* x8 N+ J: q
, c; o! {6 X8 Z3 Rsetup-plot1
% U' l: K, e0 ^ V1 H1 _) n6 V) u7 j" }, o+ B
setup-plot2
' g' } O; Y- Y* H
! s7 g, w8 k; X5 N U0 Psetup-plot3
, I- t s- H( h6 v. uend. U J0 {- I( p: P" g$ x& i
4 y/ u3 ~- r1 V7 ^2 T;;run time procedures6 N' @- S( A: u3 H3 R6 ?
3 `) F* ?& r) w' p# a: D1 ]$ k
to go& C" I: f2 s6 |" L6 |
: x# e4 S+ {" @% d% g1 E+ mask turtles [do-business]
/ m2 F) M4 M' |2 vend3 X% \6 I" B1 \2 c6 R' M
3 e( [6 q) R. R
to do-business & L. h( S) U( g; ]2 s( g
6 M9 t" @5 J1 p2 I+ U4 s2 ` r* M" ?6 C; L- X3 a
rt random 360- x% M9 F# c+ V: a& Z) ]
. _: @" x) w+ w0 ?5 ?fd 1 x- d5 q M' a/ n# O9 m
3 ~+ C2 t; t0 j1 E' ?. _ifelse(other turtles-here != nobody)[5 u: J* j' k R2 O# o- D
; h7 ]6 o3 d) P# o% |; v* l' J
set customer one-of other turtles-here* K8 z2 U1 \8 K7 Z* J
7 Q, f! v; { t5 k/ h6 M ]7 D;; set [customer] of customer myself1 G+ V7 I2 K! q4 n5 j% x
' `1 h1 z9 G8 v6 H* ?8 O- g# Xset [trade-record-one] of self item (([who] of customer) - 1)+ M4 V% G' T, ^2 ~) Y6 M
[trade-record-all]of self
" y5 R6 G3 j; O- B;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self- M& V) H& l3 l! C/ H) U+ U0 g& v
+ j8 L& Y6 h3 ?/ k# ~
set [trade-record-one] of customer item (([who] of self) - 1)0 F: i' T) e, _8 s
[trade-record-all]of customer
$ b$ ?7 f0 @6 N
( a% @/ @! j5 U( v" J! z zset [trade-record-one-len] of self length [trade-record-one] of self
! J+ L4 J5 |8 @; l% u+ x
$ A( X1 @5 @9 @set trade-record-current( list (timer) (random money-upper-limit))
1 e& U, A/ ]0 Q" @) n4 J; H' I5 A" X6 P* ]
ask self [do-trust]
* S3 W1 H& U T( q* q;;先求i对j的信任度
* a- ^* g+ e. ?/ ~ |3 o1 R7 w# W/ {# N7 v. ]6 `* d
if ([trust-ok] of self), X+ G" |- D- p W9 |. \
;;根据i对j的信任度来决定是否与j进行交易[$ U b9 C; x4 Y9 s8 ~
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 Q' n2 W0 t$ ^2 W
0 X: A8 T, i! i
[2 y) z5 s4 n5 ?5 ? F
7 C7 _1 p2 i2 I Ldo-trade
$ D0 Q! C S4 g: v7 M
0 d, H( N6 X7 Uupdate-credibility-ijl
' l6 v/ ]3 ]9 X8 X, S! V; Y j% g4 F0 f8 o8 q& p% d
update-credibility-list1 |# p7 u5 d- ?$ K Z8 Y( i
& B0 n6 s* g `$ B; F
Y' P/ E# [6 G* S* q2 n$ _+ H# \
update-global-reputation-list/ ]/ y3 j+ Z; D9 T; L0 {5 j5 N
' _ b6 a4 H0 |* _, v8 g$ Q! xpoll-class
# Y% g) Z! Z3 L7 [
* N" T4 ?& W8 m% J" h- _2 Cget-color
1 Z V! ?$ i. e: s' O$ k" F# Y G3 J: f& a; ~8 q# J. T9 u
]]
. O2 t8 I* k* V' E! m' x _0 f& {* y- e( x# l% ^3 h5 e
;;如果所得的信任度满足条件,则进行交易
- o- I6 v+ G6 ^1 N" d$ {/ T( B% [8 i3 l. N T, Z& |
[* E- V3 ^' z9 I- J4 c) h) ~" ^
4 k: W, ~/ N. r3 x% Srt random 360
! a3 d, r6 n* i0 `7 U% [$ s6 c+ }9 H/ N/ o
fd 1) `" u3 C: M6 T& r
$ ]" X, W4 L$ }% X7 @
]4 M; F- U3 u3 a: l
. E% r+ f! S* h( s# L$ ?4 I
end, b% d" j4 z/ `6 A( K
6 t5 S8 }$ m2 Q0 nto do-trust 8 Q* R$ R4 {% e! Y
set trust-ok False% q2 t3 W/ Y2 H' d5 I
- K' ?2 R! q7 }& j% t" u* a! w9 {5 F' L4 d& H9 E2 C. k
let max-trade-times 0
. ^* a% q, ~0 O! M: n& Oforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]) R2 X3 Q' G6 K: J7 @3 g8 C
let max-trade-money 0* |4 P% b/ m: V! ]! B6 |! v( B
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
& Q6 P4 m1 `9 G4 Vlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))0 U3 n; i, h8 O' B2 [6 t. X
, p8 o7 L/ m6 z( w5 S/ D6 Y: q
1 B: r6 _) W V. N. g) G" `! }/ uget-global-proportion
" I% b4 _9 n7 v" X6 f, Ilet trust-value
0 z7 r) G8 P! J, jlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
1 R; H% O7 ? F/ U! bif(trust-value > trade-trust-value)4 Q3 m" T. O$ ?2 x7 s3 I- E
[set trust-ok true]! m) O6 B1 A1 r- V% G
end
# s$ y# g) z. x. {% e/ g4 }+ k
) z+ H6 s. e& Eto get-global-proportion6 E, R# T( f8 v0 p/ E
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
! X! [! P1 }" M/ \+ c4 M6 G8 Z[set global-proportion 0] D4 @6 \) {; ?8 G( S
[let i 0. i- Y+ u, ], m: n
let sum-money 0
2 E- @2 |+ t3 L2 Z, Hwhile[ i < people]5 |9 ^# N4 B. o {$ u$ `. U
[' u5 A! m% h. N& n9 i
if( length (item i
! U7 B7 k; e4 Y' j: E[trade-record-all] of customer) > 3 )
F" ?& ^1 n! k& e; w! v! Y# a& u. U[
2 i5 B; x# k, Yset sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 Y+ Q& M6 g# E- G4 I1 U
]
$ l% d- D0 ?8 `/ \, j. C]- M. _5 p2 G* n6 R. O) G
let j 05 |, V# X7 r8 N" K9 x2 h
let note 0
- w3 u: n; i+ h* W h0 r( uwhile[ j < people]
9 E* i0 t$ l6 P5 @( `[
) ^! K( F- R$ ~4 j# W6 ^if( length (item i
5 c% A: U& c, [% o9 r% j8 i[trade-record-all] of customer) > 3 )
( y. p( }$ z& z3 R8 p4 ?" c[
" P- v% I" n' p5 Vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)4 W5 o1 R3 U$ t! g7 J
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' a* ^# n; C! L- i2 F) P[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
" ^- [' x! f- ?8 j]7 V9 ]1 L, T2 {: R8 c3 }
]
; U4 u& d; N7 n1 ~/ nset global-proportion note
2 [3 D9 U" Y2 ]# H4 o( T]
# Q. f4 v" d, O$ O L, gend
8 F; f8 O# h9 }; [0 n4 s) n! X: Y' Y: O2 y7 o3 B1 q! i$ O$ E
to do-trade( E1 K' [- ^. ?4 v
;;这个过程实际上是给双方作出评价的过程
! T* s: [0 I, t) ^! D( Jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价, Y# t; E+ m1 T
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价" L4 _2 q9 g( G" G, g! l
set trade-record-current lput(timer) trade-record-current1 k& X# }: n7 y5 G: d
;;评价时间
. [: C& Q! j4 B! A) D9 ^ask myself [" f& C' P( P3 D. [, f. _
update-local-reputation
, C4 |) ?" U( n) jset trade-record-current lput([local-reputation] of myself) trade-record-current
7 v1 Q; Z# M9 ]4 {- c3 @]' R& i' Z& @( d' o; _
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself4 D( o% S( b' s. ^2 j7 U
;;将此次交易的记录加入到trade-record-one中 J4 B4 a9 e( R! V3 T
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
" L7 s% V: v1 \8 @- g" y; v, @let note (item 2 trade-record-current )5 C: z/ D& j9 r# I: ^
set trade-record-current r. W& u2 n* b8 }0 w% W/ L6 a0 ~
(replace-item 2 trade-record-current (item 3 trade-record-current))4 c/ \! W6 E/ E U
set trade-record-current; \/ v' `% v# T# g g: J9 z
(replace-item 3 trade-record-current note)% _; R! j0 N- [+ L4 Y% o% {9 p4 U
" p/ Q/ ^( u+ f" @- ?
1 w- o/ v2 [/ B2 e3 ]ask customer [
+ Y+ f# y7 \7 m9 \ O Iupdate-local-reputation
@; Q3 {+ Y. c( f2 T3 hset trade-record-current0 a# ~1 _; t3 u. N7 R
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
8 K7 K2 _% |' W E]! f! v! q3 W. L: b: x
( c3 W, @: ]9 r0 ~
; A( ?8 y7 e1 dset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ {' r# j2 t+ R& Q1 H* B7 d, M/ j8 Q% ], |" s! S
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
( p: a! m8 C- N4 Z+ |;;将此次交易的记录加入到customer的trade-record-all中" w8 c* t p$ G9 L& H& d
end& C! A- { _9 _0 K8 t6 l& e
9 k; b5 ^6 o, Z5 @, M9 L% Hto update-local-reputation
$ e( D F* n# J5 c+ h/ rset [trade-record-one-len] of myself length [trade-record-one] of myself
6 O* f* f( v! B8 e& s
$ E+ ]$ [! X6 Y8 d+ M: A. O$ k7 q
. H) s# V# Y" A) ~;;if [trade-record-one-len] of myself > 3
, O0 H% T, }( |& ]7 Z8 O8 lupdate-neighbor-total
+ Y7 x) T& S5 _3 e! W;;更新邻居节点的数目,在此进行1 ?4 F- @! o7 ]; A$ R* K
let i 3
3 P- U7 B9 A) jlet sum-time 0( N p6 d4 C: j, R4 N
while[i < [trade-record-one-len] of myself]6 q( H+ H# g( S/ m W$ W
[4 ]+ M. t$ R* i4 V) K( |
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
6 }/ E1 o/ A) _: ~2 gset i
7 y" z, e/ g; L" g1 a0 U0 J6 ?( i + 1)
+ K; h1 w- D/ i; e0 ?]$ E% g; H9 ~5 B, p4 D
let j 3
+ i7 {9 e1 N0 }# S5 klet sum-money 0
! G2 H3 Y& s6 D3 B- G, S+ pwhile[j < [trade-record-one-len] of myself]5 t) r: t/ k8 G+ i4 S
[9 D! X3 t6 }* ~7 {
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)
4 o+ R* |: e0 j4 Q4 Bset j+ d, U# |! b* z4 c0 Y) i8 i
( j + 1)) K, b7 }5 S }4 \4 e3 k
]# m2 H1 }! l0 n T; P4 d$ P& K
let k 3% T( M) Q: L) E* r6 V
let power 05 H8 H* f7 r* d/ A% a
let local 08 C1 ?9 E& ?$ _3 r0 I) Y8 P4 C% ?
while [k <[trade-record-one-len] of myself]' d5 s, N. d! f8 S1 {
[
1 {+ e3 |) U+ uset 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)
+ ]' R9 H7 B0 f, Z( S# kset k (k + 1)
v, G7 U( R; i0 k' @], G. n# P/ I! _0 N9 f
set [local-reputation] of myself (local)
$ I* }* m( a& j" Bend- M# P6 f* W9 s0 T4 @) h I
5 g, Q+ f ^: w7 R- f
to update-neighbor-total
! O. }4 I5 \$ c% h% m" {9 u- }, y4 [) [/ W* F+ `
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
8 u$ ^. ?0 m9 i$ k4 T7 M) M+ C v' @/ P7 p$ D4 [6 D* t' ]
) `" F/ {( N2 F
end
/ X6 p# K" j5 Y( ^9 F* e m8 z: }4 m3 J/ `( E% A
to update-credibility-ijl ( R2 \% w7 ~$ j# [% V# p
`, E" Q: Q: G9 `, K
;;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。" Y) g2 K' |: F% x' a* y
let l 0
5 w6 c4 i9 a# z" i& D* ?% S. _( Awhile[ l < people ]
( M. ?$ h# p0 j* h;;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)
' Y3 v4 p {; S3 \! sif (trade-record-one-j-l-len > 3)
# ^8 Y5 Y5 D( V3 r+ q( X: a( k[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
/ l0 h- e, p L# T' x1 ?let i 3
! N* ^2 q# M8 H6 k. mlet sum-time 0
9 _- p/ b2 K+ a5 I& `% Rwhile[i < trade-record-one-len]1 U0 l4 y: v4 p0 n
[6 t7 z% U$ M4 z+ b
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ a; G/ v3 T; S1 h" E" B
set i# A4 B5 Z" _) H: l
( i + 1)$ B) [! c7 M) f
]
7 ^6 h) a% l% g7 R' g* V3 Ylet credibility-i-j-l 0% o- s d& |( x. ~* t
;;i评价(j对jl的评价), r; m4 E5 K U& [5 I, T
let j 3; `0 h3 J* e0 I3 Z+ s" o: W$ G
let k 46 T& a7 k1 |9 S( @" X* D
while[j < trade-record-one-len]3 X$ D- Q( j# P( Y$ k+ d9 K5 Y
[
, l0 s* k3 \ d1 G$ o' E- Fwhile [((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
+ v( O" l8 {2 eset 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)
6 {* p7 ~% i% o$ Qset j$ {9 N D: K, |7 l3 @7 \
( j + 1): U& t- ?& ^+ u! |* i4 A+ j
]9 W) n# s* q! v2 `- I/ Z( G3 S
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 ))2 n; E" X! z" D5 C' H5 z
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))5 o( o! N4 H) H( R# k# J
;;及时更新i对l的评价质量的评价
! A3 \$ S$ @% {set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
2 [& ]' g0 v2 s: |set l (l + 1)+ p& L7 `' [4 v1 X
]! n& P6 B- X, d& L: h
end9 l; y1 I0 j3 V* y6 S! T
! v1 r. [; k- s1 g
to update-credibility-list- \, V9 C3 b' v; t- I, G
let i 0( M5 X& W) {9 S+ y: j3 \
while[i < people]2 W0 ]7 Z6 s3 {
[
1 ]' Y5 y2 X; q: {5 Q# W2 G8 s \let j 0
' a/ s; B; z7 g$ {3 B& |5 `" ulet note 01 k M9 c5 x3 T2 x
let k 0% j5 w8 D3 M. i& {* b- {
;;计作出过评价的邻居节点的数目2 a% T: M, s* X3 B! |. V
while[j < people]4 A9 M' [# k7 i9 D& h3 X! h. `
[
$ U% Z: l' s9 N- K' L! Dif (item j( [credibility] of turtle (i + 1)) != -1): Q8 G1 H, D/ y6 v$ R
;;判断是否给本turtle的评价质量做出过评价的节点
2 }" l0 }% w0 b[set note (note + item j ([credibility]of turtle (i + 1)))
, p" H3 a( {- P) j;;*(exp (-(people - 2)))/(people - 2))]2 s5 c0 Y6 }0 `! ~
set k (k + 1)- _% H* c1 [# T( I: s' ]! l% K4 K, e
]: d; T- b* @* a3 X' u; N8 Z8 T
set j (j + 1)7 E0 ?6 i1 I# q" V( x) W3 r! B
]( u3 x7 c6 j- W2 {& X4 a2 v- b
set note (note *(exp (- (1 / k)))/ k)5 H$ i% c9 Y5 k# }
set credibility-list (replace-item i credibility-list note)
) H" H8 s$ r7 \; S0 t, v" m* \set i (i + 1)
7 }+ `5 ]: W- {& [# B# p8 R7 K& j]2 \' ^& g$ E6 o; }- ?- N
end& H O+ n+ t& w: c- C0 V3 m
3 W$ E' Z' Z y% B# U+ ~) G, E4 Vto update-global-reputation-list( X) E; S' e% M
let j 0' }: O6 E. k$ n/ M4 T ?
while[j < people]2 n5 J3 H0 _: w5 v
[6 I$ e) h5 t# L0 `, m7 D
let new 0
7 `1 e) R* k0 Z; t% w3 Y% ^6 f;;暂存新的一个全局声誉. Z$ `* E" J* j! L! ^
let i 0% @) m" A* k' z; q. ]/ {* h* S. J
let sum-money 0
|+ _8 J( t- {/ l) g. O6 slet credibility-money 0
( I; M' M! \% R1 }while [i < people]
2 v# F4 b+ `, s) l[' }4 I' \, k" x9 r5 r, d. W: P3 z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
3 E+ z+ `2 R h, @; w3 gset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)) O0 q" P. U3 D/ k2 t& u# B
set i (i + 1)( v9 W7 ^8 d! n. Z% \, |/ M
] A$ p( m/ o5 l" I a1 f
let k 0$ {/ D5 U4 j) j+ G3 O- ?
let new1 0/ w, B9 e% ~& f7 ?6 N8 B
while [k < people]
7 O4 e! X$ B5 S# V9 }2 Y: D: U, O[ T y: i; Z: l
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); X+ @, F) a+ {0 H2 h
set k (k + 1)
6 q2 v# i. e; ^/ }0 e0 O]2 w8 h9 T: ^/ P3 Z k1 b
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
2 N$ {0 I/ W! W* q P+ rset global-reputation-list (replace-item j global-reputation-list new)" r: g* F, D- V* L$ ]
set j (j + 1)
9 X& E) D# Y( f6 P& {]
( ^* z9 p0 b; V- m3 ]end
- M) B& Q" {% U9 X) ^4 b& m! a. U: }8 x: d; I2 A
, W: d4 ]$ k2 o, w- b9 x0 H. l( M
. s0 J; c' T% r: wto get-color
% j$ k/ i8 y5 u! J, R7 H- V- Q! e
set color blue4 c+ ]) y! U$ p3 f- v
end' i- D: Z2 r1 k& R0 a3 c' v
3 M/ V7 ]+ X) e, b" k7 O! I; qto poll-class
9 F$ P& h3 [" V, c/ q: Xend8 C' ~, Q+ V! U% H H
! c8 H2 J' W9 ^& P& vto setup-plot1
* M- r+ v1 D% [1 i, z. j$ ]
* j4 e, W9 K4 c0 ?# eset-current-plot "Trends-of-Local-reputation"/ c. _8 f3 _' Q! R5 l9 Z5 Q; ^
* V7 Q8 V" e- Q
set-plot-x-range 0 xmax% s) o* @( w# B' F3 j/ K2 d+ o/ _5 [3 U
" \9 W1 g. w k0 k4 l. L' lset-plot-y-range 0.0 ymax* m" D/ d# S J4 Y8 E" J9 y7 @% V
end
' p+ r+ z" P+ E2 ?
9 T% e' R. k( o5 w$ y9 {3 Sto setup-plot2; @' k) U. U4 E' s% @+ o7 a. _2 M
) [* v6 @3 o4 k8 {( h& S+ Z% lset-current-plot "Trends-of-global-reputation"7 l' d0 y0 G4 W, Y8 f
7 V4 {1 L; _( w5 K5 _3 J
set-plot-x-range 0 xmax; R0 A# h+ L' j8 C, h( x. x
n: d/ o+ N2 u" n1 {6 w2 z& q$ p2 J! G
set-plot-y-range 0.0 ymax
. }2 s0 a) u5 q4 F8 b2 Z G; x% ?end
# r1 r% M9 x! B* ?' Q
# D! T7 @0 K( gto setup-plot3) j- G9 W+ Z: b
8 P, J. U" Q7 m' B; qset-current-plot "Trends-of-credibility"* l1 }0 {' x" X7 Q% O y$ |# @* ^
$ @& j- N+ D: j& d
set-plot-x-range 0 xmax/ v& _1 H! N, B( z" O, Z( f1 {$ S
& K$ u4 {0 W+ A' p0 H
set-plot-y-range 0.0 ymax
) X; w |" g' t0 v$ W& L7 J7 E5 Lend7 J1 u8 }8 L, d2 B9 O+ k
+ ^0 I8 x5 U5 G1 P. x+ O* F
to do-plots" P/ g' I3 T, w0 W! h
set-current-plot "Trends-of-Local-reputation"+ N0 w; s# y6 W& [4 Z" m3 Q' v
set-current-plot-pen "Honest service"# j3 ?8 X4 J. C' z" F0 Q
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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