|
|

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* {$ R$ s7 W( d$ X6 k R7 P
globals[0 ]& n# O5 u4 b* V
xmax
- n2 l9 s& @1 G3 q* |2 B4 j$ Wymax9 n8 k5 Q# u& f( T
global-reputation-list6 p% v$ f7 K. o5 C
6 C# q2 ^3 d4 B- X8 z. h) X# ~2 o;;每一个turtle的全局声誉都存在此LIST中
0 p, q5 F+ E5 ~2 p) \! _4 r* P7 }credibility-list# [" N: ~7 K1 S6 G
;;每一个turtle的评价可信度# C# `( N+ i/ }* U* S- ~
honest-service- h% i0 J) B r5 l# o/ m) P+ m& V) A
unhonest-service# ?4 G' Z. b U& w: B$ Z
oscillation
* U/ [4 x4 b9 r7 n! P* hrand-dynamic
. S: j7 U* r* S# T]
/ y' J$ L: H. Y! {& w3 N
4 p8 }" }% d9 Y6 T- w- `& u& zturtles-own[. i" s: ~, A0 i7 w" i! N
trade-record-all, q# N# s# F- x; S3 U- y
;;a list of lists,由trade-record-one组成
; I2 u3 H: C6 d8 ?: dtrade-record-one
, ?5 `) G, ~; I$ @7 l% j! ? 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
: ?! \! {, u- E2 a. E* p! ^% U( x* y( R
;;[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 A; S" R, ]+ M5 d1 J$ u, M0 wtrade-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]
; E% p3 \' S2 U- V* ~6 f: ycredibility-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
7 f5 _$ G5 w5 @3 o5 f# Uneighbor-total# }- @" U# L* `/ m' Q, b: l$ _
;;记录该turtle的邻居节点的数目
% {! [1 D0 F' B$ f* {" Vtrade-time) J8 X V* G' v
;;当前发生交易的turtle的交易时间7 I9 m; ~0 ?$ ]* ~3 B1 }2 L1 b( O
appraise-give1 l4 i, ^8 \+ [
;;当前发生交易时给出的评价
3 I; m7 K; b# X5 M. H- y) k5 D! ?8 ]/ zappraise-receive7 [1 e" Q, `- r% g$ K3 v3 g
;;当前发生交易时收到的评价
( c/ F, c7 U0 m- F% kappraise-time: @8 ?( {4 H" e
;;当前发生交易时的评价时间
7 k. e# u( _) H- ~$ E4 o( Qlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉9 h' g- q5 s/ Q8 Z: ~* G
trade-times-total+ i4 @! W2 g! B1 @8 B4 \
;;与当前turtle的交易总次数+ [* f+ i7 h& r! u: S8 ]! U
trade-money-total6 {) j9 S u' S U( G& z
;;与当前turtle的交易总金额
% G7 h3 W. p2 N4 u( d# V9 F+ G( Jlocal-reputation1 [$ K4 r5 r5 c* k( V# E1 A: Q. M2 |
global-reputation) \0 \# N- |0 F) j
credibility
! P+ i e4 i. A" f' ];;评价可信度,每次交易后都需要更新5 z6 `* D+ ]' X3 C9 K. V x
credibility-all
: J) u: W7 l: O;;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
( }3 j; d" G- l$ T4 ^ G' D+ N) ~" x) Y% E) e0 T W6 D" r2 b% n
;;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
% Q+ `3 w5 G' Ocredibility-one
% D% `3 ~. j% R$ S- |4 p2 g;;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
_( H+ Z6 \# {" ^0 H: ]* g0 x) i/ Lglobal-proportion9 J, S3 d( F( N
customer" i! S# [2 @' D+ B: G
customer-no- Z# x3 k8 V N5 w7 R2 ~4 f& H( x3 \
trust-ok% I9 J1 [% Q1 v
trade-record-one-len;;trade-record-one的长度9 O% u$ c; @. s, {
]: \( R- m$ G* {* C5 T
p( |$ ~. @2 ^;;setup procedure
* }# o& J8 m' v% A6 @% X a+ G: c
! D' o( r _# V4 r. V& b; Bto setup$ `5 m- j: b! f1 k1 t8 f% z; r
8 G" |% y* `4 _- J& G6 x6 lca
; G3 H$ H) t' d; C* B
, V1 n8 [. k6 ^ ^initialize-settings2 k0 }2 K" L9 f
" |7 @7 u. a6 G: T7 e% O
crt people [setup-turtles]
1 c: l4 T4 X) `/ v) T* L
9 @# ~9 j$ _. Kreset-timer
" g& ]6 b# j% a% m8 q0 o( l+ e4 S' z1 z+ i# }6 `
poll-class
# Y* X, g% P7 g/ z; X; l- }" b' Z
^7 q! d( \% ^ d/ v& lsetup-plots
5 }* Q4 j6 F1 d" y* G
# u( _% X% W2 S! R* qdo-plots
0 r. C% D8 ]: R+ Q- M% fend
- m% t: a# r$ w, m) N8 j$ D, V" h
* A7 N& w$ j3 @6 f' u. c1 Rto initialize-settings: L1 ^: ]7 Q" d. U4 U
( c2 ?% ~" d3 X( K4 L; k2 e Yset global-reputation-list []6 X2 Q: b* j& o$ ?5 E1 W1 n0 {7 k3 f
: P2 F8 O6 l) a4 e9 t5 sset credibility-list n-values people [0.5]
' Z& `& F7 Y6 f9 X' ?# j' T1 W8 h G8 ?% ^3 [6 {
set honest-service 0% h* t& r% E, Y8 x! d
& M! w$ W) L5 S G, V
set unhonest-service 01 |1 `) E- J+ n6 y6 X9 S9 k, u% B! E
- F8 q h8 L) @9 I. s' J
set oscillation 0
$ [6 t8 ]4 @* [; K O3 b1 n1 L, i+ r; H2 e7 @) B* _
set rand-dynamic 0- b: C3 C. f9 E3 l
end
2 A5 a: H0 z4 F! q2 i% j8 f$ Q( E1 U* J3 J+ L! k. k: y( p1 ^& G
to setup-turtles ; n$ i8 K2 s$ @- m; p: _- z
set shape "person"8 E5 J8 T9 O* c; W% c+ E
setxy random-xcor random-ycor) {' Z# k' I- J# y! ~8 n
set trade-record-one []
; y* O8 f3 M* m3 P. e
5 b# g6 U' _$ x8 Y$ t0 e! Gset trade-record-all n-values people [(list (? + 1) 0 0)] 8 n) }$ z4 j [6 z, `1 _
/ z1 ]/ t4 a1 H# g. V2 O$ F
set trade-record-current []
1 o7 L# J6 k ~; g7 @/ lset credibility-receive []1 z# b8 O, ^; Z1 Q6 Y# ]
set local-reputation 0.5; H) F& b4 e9 h) F- `+ l
set neighbor-total 0
3 j2 o, s3 { T; W v% [set trade-times-total 01 r3 s% E0 C7 A2 G/ w
set trade-money-total 0
5 b$ N" U6 L) A0 n/ W9 Vset customer nobody
" s, K/ s1 |* \) Oset credibility-all n-values people [creat-credibility]
3 @: ?% g. U( C: I2 t! Kset credibility n-values people [-1]
) P0 V( N; ?8 p6 ^ qget-color5 g$ h& _) i0 O; v' O& W
: W4 ` z5 V- K$ N! g% eend P) q& `/ j6 I# W) f
% ?9 T3 J* c4 A3 e& J# P( h9 \to-report creat-credibility
W4 }" j+ J: J' D$ Areport n-values people [0.5]+ r- F6 z4 T. _; Z* c
end# |7 K+ b6 p0 X: L" u: w
) Z P4 f ]4 y% n. K3 kto setup-plots
' C0 p* |# }5 a: O z2 l! M9 ~/ N; w/ M4 S
set xmax 30
7 K7 V. S& u/ r& J9 t9 @) f5 c1 Q8 Z5 j' d+ S( n
set ymax 1.0, J$ W- g5 h" v/ |$ ~4 Y
1 m, E* E/ ?# ?% a
clear-all-plots
9 X' s4 |, W/ ?+ C% K* a0 m1 y+ Q2 J. b3 w9 I; J
setup-plot1# t4 c( o5 V! W
' V/ Z" P/ w9 j" p: Q% d8 _* h
setup-plot2
" K9 M$ A7 O0 Q5 _& W1 @" I" X1 o. ~$ N, X
setup-plot3
* W& u/ ^- u+ s9 Cend; ?; J( D: K; k! _" W. Q
$ H# `5 l/ }2 x: T$ j8 U
;;run time procedures7 a, M7 s" E( E. B
, ]2 H h; }2 v4 a; ], |
to go
" ]2 a1 [# i% f7 e$ P7 F
5 s$ y! e! s0 t4 Nask turtles [do-business]
( I3 Y, T d9 R4 p6 _1 V' Oend+ d: X- v1 k* ?7 v+ o# P t
8 X- J$ q: z/ |7 }0 |to do-business 3 s8 M' |. \" \ g8 R: y: s
+ I% w, s6 E8 ~% H) x
/ d5 b2 S9 A5 p2 L+ Y$ l# {' ^1 O
rt random 360% c3 a3 ^; f; @( ?8 d
& a* V$ m; ]" kfd 1/ ~% P! x k) y( x% P, E
* c: z7 A) {- A8 I3 |
ifelse(other turtles-here != nobody)[
! m2 b) K* s. f( U) t- q, A2 ^. Z% r6 w" k) `* V
set customer one-of other turtles-here
$ w, b2 I, {2 P7 W* }
2 T) R. N4 |& O6 V" k;; set [customer] of customer myself( } W* K5 i6 A3 t/ n, O* x
/ l) w. W2 a6 U: @
set [trade-record-one] of self item (([who] of customer) - 1)
2 t* F$ M7 k) i* j[trade-record-all]of self
$ P1 r5 w W" X) j;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
1 R3 Q) \ b6 Y3 t- k# y9 C6 v2 D; c* j9 E- L3 H3 J7 z Y
set [trade-record-one] of customer item (([who] of self) - 1)
9 ~ |# H1 @/ _/ `: L. a[trade-record-all]of customer
& [) j; K. t% t' M' v
: N B2 _# @* ~) f% P& Zset [trade-record-one-len] of self length [trade-record-one] of self, J6 c8 I5 m% J( R6 v' w
6 R Z$ U: t& V2 G% T7 O
set trade-record-current( list (timer) (random money-upper-limit))
7 v6 i5 K9 {3 ?+ J
- V) h% B) M* p: p* rask self [do-trust]
# j2 I0 v+ ^8 s: g8 N;;先求i对j的信任度0 h( n/ K2 L/ M8 s: P5 j# N
& g, t; J. C: w+ L+ k# W# G6 F2 eif ([trust-ok] of self)
) z; t) S n& j, @0 y$ H;;根据i对j的信任度来决定是否与j进行交易[
- Y$ ?4 k _0 {: Z. xask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself+ @8 i4 H- Q( S Z9 Y7 f
* p4 [8 m( s- `! W2 ]5 N
[+ V, D& [4 D5 k/ I* J$ t7 ~
1 ~, `4 n/ h' R8 \" Y3 K; i B
do-trade8 H `7 g! D; q& ~1 {
, e2 _2 \% i* D
update-credibility-ijl
! F |$ d. S7 C& n U* x5 t" _+ N, \6 P! o
update-credibility-list: S# i$ }* Y. g6 A7 U5 w
3 c0 ]. ~7 c! i: Q# {- e7 L" _$ K
. \. j* C" O Q* j6 ^# y( wupdate-global-reputation-list- _7 \% V& w7 U5 T: W/ M# _
& _9 V5 Y( H* Y4 v8 ^4 V+ H9 M
poll-class9 S0 i( p; L# B' \5 H& \: {3 _
M: d. r+ ~& N4 l4 t# m7 m$ P6 C
get-color
9 G( @$ Q% T9 k2 z, g$ ?/ a! S. [7 a% m G' C
]]+ I# {2 ~3 @0 \4 z
( n. [( o. @0 l/ i: s" R* O
;;如果所得的信任度满足条件,则进行交易! p, z2 f3 R& p9 _. `0 T
l: w/ J; `( w/ Y
[
4 U1 F' j( U) X K2 F$ a
9 F1 l/ e* P4 f' X0 ]rt random 360
* Z N! Q! G. }2 K4 u' p4 W3 \' [) S8 F. s" h
fd 1
) a" `) Y* w0 R! K0 H, `" a
% I) M7 l% s4 [+ \% X* ^]
9 y8 Y9 x$ L# y% @4 H7 n8 Z' Q% D! D* x2 o2 j y. L
end
# z5 {0 T* Y0 f+ I0 F1 m$ j
1 b* b* x% s! W' m' w4 V4 b$ B" @& Kto do-trust * `$ |( @7 {% j2 B/ U- i' V+ D' z
set trust-ok False
3 A0 L4 I5 ?. k) q5 t6 f" N, L
3 A3 y& Z. Q6 m; x
/ }% n" U5 W5 y- |3 H/ l4 Hlet max-trade-times 0
5 O0 j: w0 u4 q3 Q: hforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
% o6 l9 k, d+ C# J, X4 u5 ]3 l8 Ylet max-trade-money 0; s' u0 w6 ]$ f
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
: Q3 b% `: Z* }& L$ n& ?3 Olet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% v- ` e1 p2 W# P3 L }7 i; G+ l" d
" V, B! e6 E. H' e7 o: _7 e$ v- x9 nget-global-proportion" Y8 e% }4 @- S; D9 ?, x
let trust-value0 W% Q0 J; R% o, d/ P: W
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)$ b3 J- F/ i! y2 @" A% Q
if(trust-value > trade-trust-value)
1 M7 D4 {# v2 k R9 I[set trust-ok true]8 V" K1 v0 ~/ n' A
end* ?& i2 M, D% u: I& a% b
- R0 K2 n1 m: Z# oto get-global-proportion
- G2 X5 @; }! P" mifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)9 Y0 U$ Y# m/ j' z
[set global-proportion 0]# p! b, U+ d+ B1 X0 j
[let i 02 b6 b3 b/ a* R5 E: d9 C, p$ ~' w
let sum-money 0
. t, k0 \2 O! S' C+ ?( n- d. _while[ i < people]- x5 Q: [( B3 h8 S. P4 r2 o: S! H
[+ J0 w( }3 Q+ s N2 ?) `5 U/ l
if( length (item i
- n& A3 @# L2 ^[trade-record-all] of customer) > 3 )% K0 I- ?/ Y2 a# Z
[7 ~+ C5 v# s# r" {: I0 @
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
! [% |& ^2 o3 [; z: n]
, M9 E5 ^( c% Q8 u" _5 r]
& [* O% R( K" d: Klet j 0& E! k( I* U2 G
let note 0! Q" K9 l( z" s! R
while[ j < people]$ C. V, O% ~' }
[* I6 _+ r! d, _6 m9 M8 i
if( length (item i4 l& A! } u4 R- g# {
[trade-record-all] of customer) > 3 )
$ Z8 t! W; Q1 {/ t4 l7 o[
( H. d4 i3 Y& F& ^, uifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! e1 k: o5 s4 G0 O; m( ~* Z$ R' y
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 n# n. p3 g# O7 l: P' E
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]2 M. u# N6 e+ k
]
$ R8 N7 j" g M4 @" b* n]
, |6 O' `( t. c$ t: [8 x2 @' o) L( `set global-proportion note
9 i0 r# h& M; u. H( D4 w H- u) @! w]
' W# T* |8 y/ Send
9 V8 X( h8 ?0 E; t( R6 Y6 e; }6 I" e& P
to do-trade
$ k# R6 F' h1 A6 G9 p;;这个过程实际上是给双方作出评价的过程
- e8 w# h" ]) |; g; V! g, y$ O; F4 hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价& A- l+ U7 Z: w, L2 B/ J
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价 C0 B4 c# D' l+ L: Z( s! M
set trade-record-current lput(timer) trade-record-current- g$ x! V5 Q9 u9 @& M: S
;;评价时间
, F) A" A% N+ o' W2 [ask myself [1 K) I5 Z$ x, M0 G
update-local-reputation
+ V+ j% D' `/ I) m0 K G2 h% O* Jset trade-record-current lput([local-reputation] of myself) trade-record-current! P# D/ `) O8 H& G8 Q( b! J
]4 }" ~: ]& D9 l" B- _2 e
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself1 b% ~, C7 c" b
;;将此次交易的记录加入到trade-record-one中5 u9 A! |7 A F0 T( Y3 X
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)( ?8 g. b6 ?, f9 T1 T- [$ v8 Y' H
let note (item 2 trade-record-current )
/ @- n, F8 U4 }! Q; |, J; wset trade-record-current
7 [- b% [! t# y: l4 \0 A(replace-item 2 trade-record-current (item 3 trade-record-current))2 r- v9 D7 `* M2 x3 S
set trade-record-current, ^, Q; b* \$ h) P; |6 b& l
(replace-item 3 trade-record-current note)
2 K( Z9 C. J% d3 I: O& `0 g& I" p% u: {4 |" i; A( o
" \8 E/ j0 o S& l5 J6 l8 u9 pask customer [! o* l* s! v% ^% n; r( |
update-local-reputation6 y, E3 n! v H
set trade-record-current
# g. h8 C7 a8 j, ^- M6 R2 q(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) V% o: b, |, M4 J0 o
]
; S- a& o& p' B: e& e% S. R4 q- Q+ C* V2 `6 w1 D% V& O% v
% `+ W& z; D0 b! Q# i3 E
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
$ d7 x( S8 M) u& w2 b7 [2 g0 z
0 H$ b0 u1 k. C9 l' aset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))$ g" U/ @% Q$ Q& V( l& d' T
;;将此次交易的记录加入到customer的trade-record-all中
" Y3 O( K2 {- N, Nend' ?$ c" b, Q v. X4 v
# G" Y) d' f K2 ^3 o$ c- Ato update-local-reputation
7 @9 `: K; i: i3 uset [trade-record-one-len] of myself length [trade-record-one] of myself
& q2 ?6 C4 v. m( A1 K; @
% _2 a# \; p# f/ V) n- Y. n
: N6 U* B) y7 c! I6 M" ~2 v* H;;if [trade-record-one-len] of myself > 3
7 v" V6 ~+ { N6 ^- fupdate-neighbor-total( A/ T* |2 k0 d" k$ ^0 e9 v
;;更新邻居节点的数目,在此进行
) X) ^1 `! l: n! s( K7 Tlet i 3
2 N7 C7 L. |$ j, S8 W8 V, A+ Flet sum-time 02 d0 z# q6 _. O9 q: h, S. F% c
while[i < [trade-record-one-len] of myself]
0 X! S% _- {- y! |6 X7 l! f% h[; m: V0 i3 a/ z" _' z5 q! j" E
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )" [6 C3 [# u1 I% @
set i
' G4 B, ^* |& E( i + 1)$ N% d, N3 q! J& D/ w4 ]: R
]
- U0 ]6 {8 W! H% O7 T' R4 {let j 3
2 C) P& x8 t* jlet sum-money 01 H: l# _/ h& [* U2 W5 H/ [, a
while[j < [trade-record-one-len] of myself]
' S) H0 D0 Z$ \4 H% T# p[! P, z& W$ m0 R3 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)
: e- c& m) \% j, u4 b- z/ @set j
" T# b% l6 S1 I$ a( j + 1)
: N8 _" J6 e$ j) q]6 Y' J9 \: d- }, t
let k 3
. c2 \# ^6 `$ A X# x# y5 g3 Elet power 0* C7 k4 \9 F' f2 ^
let local 0/ K# x$ m& K& w9 C- y3 G' v5 Y
while [k <[trade-record-one-len] of myself]
% A" l. z, z- R9 v[6 Z% F! g: }0 A/ I9 I# 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) 0 g5 [2 r+ P2 Z' f
set k (k + 1), p& @0 a4 k4 w' Z; x# T& z
]1 b9 r& g( y" O0 f2 u& f, X( i
set [local-reputation] of myself (local)
2 f) k. ?# A& \4 I8 p- I+ J$ iend. l: E& A! G1 C7 b3 K/ `
* I* d! g" G7 ^$ I# O' ~5 q+ L
to update-neighbor-total* m8 D. B J9 R
( Z) |7 |! y4 U' j) tif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 @5 T3 S* e! A: O7 @, M% p3 [* [
6 H4 E! m0 h4 i& S9 N. c( t9 F
0 z3 ]. @+ B& |4 B4 |1 i4 p, ?end9 K% M: R1 I4 m3 _2 L
. K) f$ |! _5 h0 U6 w
to update-credibility-ijl
" X# Q: B) [) c9 A) ~% m s- c3 N5 s# v' s1 f/ S
;;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。. D: w0 R* O1 R/ e$ j' [: \3 g
let l 0# [. m: }; e( e- m9 ^# c
while[ l < people ]% q" D1 U8 I+ A) b% X
;;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 M9 K* y4 J! }7 c
[' `% n8 l( ^2 s l; A* _. m D
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
- i" e/ a M* A+ }2 I2 [! u; Y/ W5 wif (trade-record-one-j-l-len > 3)
; c; X! ]0 Z a- n[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/ ^2 `8 H j, A5 K* n$ n; ]5 t. b# \
let i 3
/ `, k i$ b1 F0 J$ t% ]let sum-time 0
4 X; I+ v. f6 A$ Z; h) x! hwhile[i < trade-record-one-len]
8 b& t- r- u* y- x[
7 ] o) n1 U& f. B9 oset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
8 c4 ~0 A, h4 r! E# M* Lset i: t6 v* G8 V4 q
( i + 1) W* B" U% ^: e# r: l3 i
]
1 a( Z- V+ W1 H% O+ q0 \1 Mlet credibility-i-j-l 01 m& e3 `! ` v
;;i评价(j对jl的评价)
: T2 j5 x7 F& y; G; ]# Olet j 3* H7 c4 o' ^0 h1 n! S9 c# w4 j
let k 4' m7 ^$ f5 B0 X; O; n8 V8 J
while[j < trade-record-one-len]" h/ s' L+ R3 [" s$ p1 W6 ?# Q4 ]
[
6 o: | E; d0 @7 I9 Cwhile [((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
0 O. B4 [$ p4 v2 Xset 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)
5 {. I; H8 V. s# g3 `+ A( |set j
2 ?7 O" {. `* l( j + 1)1 F N" r3 w! d1 C" i
]8 Y- C i! l& \5 Q M3 Z+ a3 K" o& `# 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 ))
% ?! f3 B# m" m" W3 s8 }- ?4 Z1 E: m T9 K& r2 M% \
* ^6 }% J8 T* H
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))5 Y+ ?1 N* {/ G/ }
;;及时更新i对l的评价质量的评价8 q- u4 x3 d0 s. N! J; m7 U5 N
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
! J* x2 g7 S2 m* J( g; ^) c, dset l (l + 1)
: P7 R, I; q: U/ ^0 s! x: u]9 O) H0 ?* H0 ]6 Y; ]! W
end
% [+ G8 ]$ c4 Y e( _. f* V+ i5 G6 e/ S9 S
to update-credibility-list0 C3 O+ V2 a6 t+ Z& r+ h9 i# i7 N
let i 01 W5 {2 o# z2 d: e' [4 c! v
while[i < people]8 Q7 v3 F* `; L& J4 b( t7 f
[
& }! D; T6 v$ Q. D" `1 i4 plet j 0
" R2 {/ {5 a1 Z* m5 Rlet note 0
% x- K' i, C8 m% ?7 qlet k 0$ K7 T7 k9 s7 n$ \0 o, S- I
;;计作出过评价的邻居节点的数目
/ S5 o8 s. s% H: r9 twhile[j < people]1 V% |" A, p1 Z- z$ [( ?
[
8 ~- y) D- m m$ U* Eif (item j( [credibility] of turtle (i + 1)) != -1)- d' K6 @ ~; l$ y) c# N
;;判断是否给本turtle的评价质量做出过评价的节点2 S, j( P9 n/ o2 A3 R2 l
[set note (note + item j ([credibility]of turtle (i + 1)))
" K- M+ q- j. ~;;*(exp (-(people - 2)))/(people - 2))]
/ `# n" K, x& s% |6 C1 r0 z9 `3 pset k (k + 1)
3 ]/ v' U! D7 Q* @], n7 K% M. O ~3 h
set j (j + 1). W/ u3 K* x8 I3 j f4 ]: R! A& Y; z
]# k& t3 p5 V* U+ {# ]
set note (note *(exp (- (1 / k)))/ k)
% H0 F2 L* k& E1 h) U( Lset credibility-list (replace-item i credibility-list note)
' @" [% `& Z+ d: V+ [& p( ]. Iset i (i + 1)
# Z4 E0 e& |2 o" v]
% i# K: q$ j7 z8 @1 kend
" h q. r5 q0 O2 q& J2 W" D! G; p2 I6 F6 n" z7 H- x- H) ?
to update-global-reputation-list' S0 M2 Y+ v# m4 ?
let j 0! O- r0 a9 ?. i% u7 m3 O6 K
while[j < people]' ^( M; E' X0 `& `$ [+ i$ Y
[! P4 N' g+ Q/ s
let new 0
$ k& H p* l& ]( C$ J+ A;;暂存新的一个全局声誉7 k9 _* A y8 t7 [1 T
let i 0. j8 t/ B9 h. _ C! ~2 D- V# G) c
let sum-money 0% n2 p! n) F1 D* K( O, T
let credibility-money 0
+ \6 C" u$ t1 `3 bwhile [i < people]/ P2 ~) n4 [# C- |% s' R
[, k- F" q2 r9 [3 H( K
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
4 ^" b' y; r2 Y# U W8 }2 oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
* y: i0 y, q0 y* \+ |2 oset i (i + 1)) s6 e% |2 ]% s8 m1 z' |
]
. K% ?5 m3 ^. ^3 @/ ]9 Hlet k 0
~+ Y* Z5 G6 T* Ylet new1 0
! @. i6 v6 z ?while [k < people]
% \! t; _5 K( V: B8 C" A[2 X0 O# b' m# ^" ~" w
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)
# _9 c3 [ h# c- X6 S0 \& cset k (k + 1)2 X6 K/ ~( m9 Z: n. c, J4 V1 T
]# `8 r. y; x( j0 K E
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
- }( `6 k# g# xset global-reputation-list (replace-item j global-reputation-list new)
/ W' X: j" y9 D. ~$ P+ Z P- }set j (j + 1)
2 u+ v) y, ?: |5 Q; K1 e]0 t" X4 P! s; w T) e7 Q5 q2 d
end
$ h$ s, |! ]! s9 P* q4 Y5 H$ y; `
H, C" |) w- N& m2 a; b
" {4 P2 C- |. D3 C: n) G( G2 i1 @* j) @9 \! ~
to get-color
& [+ r7 r2 j9 e% B. |; c9 f9 B4 [! q$ u2 d5 t' W: p4 v- z
set color blue4 b7 O8 _- V- W2 _( J& d4 h7 C' j
end
$ x h# h2 u+ ^; Z1 H6 g2 U- {' {/ r% }3 `) H3 I5 P& N0 {, a
to poll-class
9 O& {) q" q1 d& I' f# y8 send/ b5 Z. w C7 u! V, ]4 I
3 [1 l( V. j- N9 O- p2 H
to setup-plot1
3 o0 d/ h' y: z2 K( z w7 }+ [5 b$ G7 D% ~
4 R5 j9 e( n6 J7 A7 x Q' \6 c4 cset-current-plot "Trends-of-Local-reputation"
/ {7 O( N2 {! h: G8 N3 R2 Z+ \( D: x8 a- ]4 T
set-plot-x-range 0 xmax+ b/ c! {* K: x) c1 |
, D' v2 K. Y; c" F6 Z1 g8 R
set-plot-y-range 0.0 ymax0 s7 p( h7 U4 [0 d. c
end
6 f4 h( \' P( s; r/ e' O F% Q
to setup-plot2
3 j4 B" [0 q0 W$ i3 A8 K3 V1 n; A7 n: B4 i2 b0 Q8 ]
set-current-plot "Trends-of-global-reputation"6 O3 K, _8 y7 F3 n
' e, a! e& w1 t, _ Z/ a7 \& o/ r z
set-plot-x-range 0 xmax8 Y1 u& f7 P" |8 H/ q$ C
4 x- L6 L2 d% s; d8 ?) M3 G6 w0 Bset-plot-y-range 0.0 ymax1 a! i# u; m* K9 G' e$ p4 T% }
end0 X. |+ ?6 ~1 T; B2 K
7 V7 q# u8 M; s% Y) fto setup-plot3
3 j7 e+ g1 j' j& e/ `% b( M I3 F# j5 y
set-current-plot "Trends-of-credibility"
- S7 {! D! S: h; V1 _
+ c: v! f4 Y; xset-plot-x-range 0 xmax
4 R0 w* [) M. { ^
* E: m( X& x5 T" ?! kset-plot-y-range 0.0 ymax
# e# f2 H; |0 L3 rend) I7 M/ R# W4 t$ n7 U' @! {
! q- `! z9 r: M& X' i" kto do-plots1 O6 B! m$ [* |, T& p
set-current-plot "Trends-of-Local-reputation"
3 D, q# X! D! W8 Q) |+ d* q6 b: ]# Uset-current-plot-pen "Honest service"
v6 |, T- b5 c, E+ F" lend6 F$ Z9 q3 n6 B$ m* L3 Z
2 P A9 R3 Z) N4 Z2 q! O' {
[ 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
|