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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. U" D* }; B! j9 z3 H; A x- N
globals[
" X% O' n& [7 s* u/ a! @. J% ~xmax6 Q* U9 d. T- P4 C3 Q3 K% m" S' g6 M. l
ymax
[7 x0 _( t, o# L$ E% lglobal-reputation-list
2 O$ ^* T$ z9 q9 C# b' z8 o! \ X( }0 _7 R9 {* I
;;每一个turtle的全局声誉都存在此LIST中
; m' B3 u( w% C) h2 hcredibility-list
, A; J3 X$ |( d7 n" f V;;每一个turtle的评价可信度 b! L5 r' a# M' D- N3 D
honest-service
$ [8 H) x- z; j6 ~8 ^% Bunhonest-service
0 G9 Z6 h! g& s. q% W: c: `oscillation
% F" n* f$ x; H/ N$ Z, t+ I2 Krand-dynamic
0 z; a3 Z: I9 |]! |: {5 ^* G, @& J9 u, l0 l
, `9 H3 u* O/ s1 f" W4 h2 Dturtles-own[
{9 J1 d4 a; O$ I9 A/ F' ytrade-record-all6 c; _+ t2 g P6 M# ^2 s
;;a list of lists,由trade-record-one组成
+ R7 L8 S* R9 f3 I( J4 U: Btrade-record-one1 P6 c& r* k6 Y3 Q! |( D6 Q% 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
# P$ N. l& H& T5 E/ U+ w2 x7 b+ g( E1 c. D/ Y( c
;;[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]]% k/ O: P. y" `6 S7 \9 d0 f7 y
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]" L) Z% G. @. }! t
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
$ L) R& l2 } mneighbor-total
$ F& ]' L) p( ]2 S8 w) [;;记录该turtle的邻居节点的数目
2 Y8 u; Q) d, a) B% Etrade-time
$ I1 I x2 N- |5 m' Y2 K;;当前发生交易的turtle的交易时间: p5 n6 W( |7 z
appraise-give
1 A5 y" D# W. y% ? J& \;;当前发生交易时给出的评价; T7 ?4 n2 [( {+ u3 [6 j& Y
appraise-receive0 `' y1 ^3 U! D0 l
;;当前发生交易时收到的评价9 S9 `3 x n& k
appraise-time! R8 W# G; b7 ~0 {5 \
;;当前发生交易时的评价时间6 ]+ w% o& J" ^; U& B
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
, J+ F! {2 z, h2 e0 ?4 utrade-times-total
; {' f, l% B l# e6 l$ p;;与当前turtle的交易总次数
9 t3 E. A# C/ W2 I" Ztrade-money-total4 w9 K. f! X* G. m& k( H3 \
;;与当前turtle的交易总金额! z! X/ v8 ^; L5 S
local-reputation x/ q; K" K; k6 d
global-reputation
3 t1 x( ^+ C9 p2 pcredibility
' r v) w6 t# P0 a% Q: a0 Y;;评价可信度,每次交易后都需要更新
/ O0 Y! s: U* |' ~, qcredibility-all% F* K. w( r$ b9 @3 |
;;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
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;;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 N2 y! p7 U, bcredibility-one4 b! K' R( @' m5 m) x# M: 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- S% E+ a1 Z! V& P$ C. g$ A
global-proportion
9 g* q& R! t0 K& U$ Ccustomer3 [% ~7 e( ^, T& e/ L
customer-no
( J0 J: }, i0 x; Mtrust-ok
' g/ u$ P# m& \4 otrade-record-one-len;;trade-record-one的长度) G( ~. h \, y# s' E T
]8 e5 @1 k5 L& t8 `7 X
# ]7 b' |0 ]: j3 \' G; b4 n" d, a
;;setup procedure, ~( j% y h4 g/ X. z
& X l- X0 R/ l% \# ?/ ?3 C" }: P
to setup
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ca: a9 v5 y) k3 P7 V+ r3 E; O) p
: g9 O& m! n$ Ainitialize-settings9 _& b) O5 h" L6 A" |% R! ~
& K. f a7 k' }crt people [setup-turtles]
+ c8 f* E" X6 M/ d8 v
% u6 o0 [- M2 X' Ereset-timer
, k" r2 [+ b9 e# x! z9 L$ S( t( a$ _% ?* o4 o+ y
poll-class
8 c) x5 L1 q9 c% ?& e" m! m7 n' z) ?# G1 h4 S, r
setup-plots' A! O4 {) G }0 W
* g$ S! q6 N7 J
do-plots3 L0 L ]; f' ]! ]* Z+ W
end6 l2 F3 \/ w$ g4 \7 f& {. J
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to initialize-settings
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set global-reputation-list []9 P. h' B! z* B# V& X! z
, y$ m8 ~# i/ q
set credibility-list n-values people [0.5]
+ E8 [; M: Y1 z
6 M( W, L$ Z2 a4 Fset honest-service 02 Z, K/ W5 n8 O& V" K
! C- l& P% d# U6 {set unhonest-service 0, p+ e: T) k2 L9 X: u
! w# U4 Y3 I1 b2 {; S
set oscillation 05 c) V4 |1 q$ \4 d% ~
' e- ~4 ~/ z5 f; @set rand-dynamic 0; ?: {% @* j6 N
end- C0 ^" ~! u. c1 B
# A, r5 H7 S' f* f' F. k
to setup-turtles
1 u5 i9 Z+ L* u" k5 s+ V8 Uset shape "person"# N- Y( ~6 [' I- d9 Q; C0 ] A9 o9 v
setxy random-xcor random-ycor
+ I3 I' B4 j0 Qset trade-record-one [] Y; Y" ~+ v8 S
# ]/ h+ Q9 X/ h* V; R5 ^1 Eset trade-record-all n-values people [(list (? + 1) 0 0)] 0 T* D. E- U# T, B! E* U" R
% J$ i% X- x9 R
set trade-record-current []
3 P- s! J; D1 _set credibility-receive []0 x& E/ k$ Q, l2 } p/ c+ \, ~
set local-reputation 0.5
" ~" q9 k! e) Aset neighbor-total 0
! b0 I& p( u4 L; y2 q$ \" ?9 ^$ [set trade-times-total 07 ~9 g+ o5 s3 K) b3 y9 k2 p% _2 X
set trade-money-total 0
9 q! G# J0 Z* \: i1 wset customer nobody% I+ f7 y2 `$ _* a
set credibility-all n-values people [creat-credibility]
- c1 P2 P& E" ~& {# bset credibility n-values people [-1]% a& l& u, `3 h v
get-color& C7 Y1 Z5 p! ]3 Q5 H1 L
2 V8 ^5 U$ f% {* b2 eend& K0 |& Y' A+ w% c
! c2 r- S& E( G9 u T: a9 Cto-report creat-credibility
* |* h2 _6 r) l% b( {" Hreport n-values people [0.5]
8 R5 R% }3 V( b" t4 @' g1 Hend0 i, H5 s! `4 Y8 b9 y
& S: v8 O6 W# z% B3 ]. P1 pto setup-plots# {3 x0 w7 \! S4 I5 q; U" c0 C
5 w8 }: H o$ s) k
set xmax 30: l- e8 I8 X6 ]- M) W+ `
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set ymax 1.0' k3 ]1 E9 n% @0 V4 v
, r# d! U3 d) \; T" Lclear-all-plots
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setup-plot1% ^) K" l# @* w2 @( S' {1 d) e
5 g& H6 ^. r/ v& s- j- V2 _setup-plot21 \4 w% e# R& ]5 }+ I
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setup-plot3
3 ?/ ]) x! s# A& H2 J4 kend- K( J- H* X4 r4 G
4 n. a1 W9 u, i6 e;;run time procedures* F) ?( B3 D6 ?3 [9 X$ q
7 M& G+ m7 i8 Dto go
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ask turtles [do-business]
* @4 Q9 b9 i& J' pend
" E8 u' r; g5 \8 i8 X" K* A
2 G% F$ c5 D2 y! cto do-business ( b1 ]! U# H# J
7 [1 `! t3 M6 y; A3 G+ W1 W6 }0 r, {- ?4 G. D
rt random 360; i0 [$ p3 r, S% B* W" J
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fd 19 p) Z, b% n/ l2 q. B! n; Y
+ B* \# v- o4 q8 b t! Pifelse(other turtles-here != nobody)[1 m; A8 h; E; w
* O4 c5 \3 \' A" q5 ^" zset customer one-of other turtles-here0 V4 z X3 f* _3 }( m0 [4 K
' C" \; e$ @: o+ D) F1 P;; set [customer] of customer myself
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# O6 p! Z& k$ a9 S oset [trade-record-one] of self item (([who] of customer) - 1)8 `; W. g N1 B2 x' w# j
[trade-record-all]of self
! c) ]1 a# v7 T% X- k;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self4 \0 t: v" _8 i
. g+ f0 ]' J P rset [trade-record-one] of customer item (([who] of self) - 1)
9 G x8 C# J" K# ^( ~$ A4 ]. a[trade-record-all]of customer
1 H) A. y) ^! d4 O
- A: P; w! D9 T/ G9 }1 Iset [trade-record-one-len] of self length [trade-record-one] of self2 }) M( s) O5 d$ s" k
8 F. R5 r) U- p/ V6 k- v8 u1 |
set trade-record-current( list (timer) (random money-upper-limit))+ w: M9 p z6 ^' t$ j0 G
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ask self [do-trust]
( ~' X Z6 T5 I7 E& e' x. H) X;;先求i对j的信任度0 y4 ^, }& e$ N! W: f7 F
# W$ I* H1 J$ Jif ([trust-ok] of self)
( u) B. q6 ^+ F$ m. Y# e$ b;;根据i对j的信任度来决定是否与j进行交易[. g9 i3 N6 f: s1 r# R* T, K- ?
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
y* N- \ H8 T4 e5 X
" [2 z6 i7 L2 H" Jdo-trade4 e5 o" W' T- i9 o2 \ w. o
- ?% i. u9 t; m; W. F k+ ^9 T% w: h
update-credibility-ijl
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2 b7 f7 [( ]& ^& ^0 k) c( Bupdate-credibility-list
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update-global-reputation-list; w$ X9 k4 v& U5 l% C6 _) P
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poll-class3 d% y$ n7 N" w
: a6 C+ V: g' _' z3 Z; Lget-color I! J! H; C8 ^4 N+ R
( G9 x% w( n$ E
]], P; \" h5 l- }* X" T
$ w' R8 c# Q8 ~8 F
;;如果所得的信任度满足条件,则进行交易
; S: _ f+ U% C' o. G% h: ?
+ I- V5 x4 m G. Q9 B8 T; {2 P[
" E; f% h- B' C
) }$ E2 p d& @ lrt random 360
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fd 15 v# j5 U2 i6 y$ `5 F
5 Y& |7 ~, x8 a( F1 l- ~]
" @) Y+ F* f0 E! e4 @
; b; B; i* B/ x& K I$ P. n9 G8 K0 h2 Kend) l( b3 T$ K1 h& M6 w, g3 r/ f
t- W5 V5 d- R- Z5 yto do-trust 2 e& l. e) r( E$ n
set trust-ok False
; x( B) _- z& R7 g7 n* A) I9 c4 a! c. U) \
: X* g# Z' H( |) rlet max-trade-times 0. o6 f9 Y$ T& E1 N4 V
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]6 b3 W/ i0 Z {0 b
let max-trade-money 0
9 C) E* @+ N) x3 {+ h3 b% Nforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
0 T# t' @3 r) i$ ~4 y( {let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
) m4 v2 @2 W1 G! W% H0 U5 L* g4 i& W) @8 q1 U3 ?. ~
, _" |+ Q) c$ J/ V8 m+ q
get-global-proportion
! p/ V1 f5 M+ u* {let trust-value' a/ A! H' X+ v
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)
% w/ `7 J% e5 R3 Mif(trust-value > trade-trust-value)! O% O* U3 h* u- X# p& q" q1 \* y
[set trust-ok true]7 G. e, |: S% |2 Y0 k% z Q- G
end
0 J: o* `2 h+ v$ [6 x8 A) [+ N. s
' ^% E4 L* e9 z- _2 n) ~to get-global-proportion
! A# a. L$ a/ G- ^ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)% b- ]! w) k/ D' t, ]$ R+ B; C
[set global-proportion 0]
Z: r: S# U' d/ |$ a7 e8 \[let i 0# n0 i( e( Z T: ~
let sum-money 0
]! U% k# a: owhile[ i < people]3 {- R; h$ C4 c! Z+ H! ]) o, |& @7 V
[) o! p% ]; ^1 O, Y; R
if( length (item i8 C9 T5 `' n6 m* }
[trade-record-all] of customer) > 3 )
5 N0 x- S- i/ L[
# z, N9 Z3 |2 W _! ~6 y& L* ~set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
0 z- Q0 F- s9 J" X% u7 w]
9 t" o( y- X+ x: i" G, f]
6 i0 ~! f/ N A: k1 X8 Olet j 0+ ~6 D/ }" D* }8 O; U. x F& q
let note 0
4 X$ T7 r9 @# R, H' q$ C) Gwhile[ j < people]
7 U# i$ F4 F7 L% a+ E4 M$ x* e+ a4 G% C[: F! H. D( q3 I/ y" f' ~/ I
if( length (item i: @& [ z1 w. q5 L; }6 T! J
[trade-record-all] of customer) > 3 )3 k! u" {: y" a1 b3 V
[3 P, S. ^# c3 ^6 u O. I
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1), H; b' q' H6 U
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
- Y: N' K3 c# ?0 b* m( I[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
: U5 t. \) Y) U]- N/ u! B( o5 h
]2 v8 p5 c+ Q) p, P- S$ Q2 K% v
set global-proportion note
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end$ w. b% ]7 Y7 q
$ x- l& o& p2 F2 I4 tto do-trade) a; X) j7 ?- R, ]" C% a
;;这个过程实际上是给双方作出评价的过程/ R5 |8 `9 n# H6 `9 |$ h7 G5 d3 ~# i+ ^
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
* I% B# Y/ n. l3 P @3 Vset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
' k, H+ T; Q* T6 g' s! Zset trade-record-current lput(timer) trade-record-current: [) ?0 Z% l+ }# X# y E8 E3 ]
;;评价时间
4 p% M, s" x1 ^9 y/ I6 k: ^7 oask myself [# r) ?$ D+ j+ C$ }& s) H) O
update-local-reputation/ n: a* t v3 @/ }
set trade-record-current lput([local-reputation] of myself) trade-record-current& e" G, D% X: `1 v" o
]
4 _9 W$ H7 `% ?7 dset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
. }1 [# H3 k. O$ L6 m;;将此次交易的记录加入到trade-record-one中
# l6 V% K; U- G) I' dset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)* f- ^0 O4 b0 J: g9 ~ Y' W
let note (item 2 trade-record-current )
( r: D% ?# G) F" B0 Mset trade-record-current; u' k! f/ g# o3 v7 Y9 X
(replace-item 2 trade-record-current (item 3 trade-record-current))
3 {3 d2 L/ A$ |# w$ Z" o+ tset trade-record-current! G6 t* P3 P. v S4 l$ z$ C
(replace-item 3 trade-record-current note)( n( k8 H' Z8 f6 z
0 ?: B0 C; G$ L* y$ O |6 V- l7 O4 h; t" v8 R
ask customer [6 }8 M% C$ l1 O6 C3 k
update-local-reputation- N' X% k3 F4 q8 z% f4 T
set trade-record-current
~9 F; V9 A) Z% j) s(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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0 T. m/ h+ [: S$ r4 _
6 h$ [+ @* I8 E& eset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))% e' S" m) L$ q& n9 `0 N
;;将此次交易的记录加入到customer的trade-record-all中
2 O6 V' N- T$ T/ M2 y9 Gend
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to update-local-reputation) y8 A$ ]- ^/ M$ c" Z9 ^4 m
set [trade-record-one-len] of myself length [trade-record-one] of myself/ n" b& D$ j3 T! m, c/ s
( E8 n+ M+ h+ @- ]/ c! x
! h, Y L5 R+ A;;if [trade-record-one-len] of myself > 3
; ~' V6 }6 p- ]% P) j' eupdate-neighbor-total
% k6 [2 ^* U1 U2 O A, {;;更新邻居节点的数目,在此进行
( D% z$ N7 b5 W+ X# M% Elet i 3: j d( \# {0 x7 M$ D
let sum-time 0
* h1 f+ r& _* |" E9 ]' u+ p1 ^! Qwhile[i < [trade-record-one-len] of myself]& m# f g- _& F( Q
[
: _+ j6 w( R0 L6 Sset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )7 ]( `4 Z+ z O9 y6 @2 f
set i
i6 _: \" I( T& v$ a7 \9 E7 J4 f( i + 1)3 r$ Z2 @" i3 F0 v( M
]
; H. M! o* S% \6 X; R; Hlet j 3
0 |; ~+ D, a2 p. m% \, dlet sum-money 0# o3 j' N( j9 v# G. I
while[j < [trade-record-one-len] of myself]
1 N g* h' q. u8 c" U4 [[
4 m5 q/ H9 Y) _" g+ a/ ^7 A2 fset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
$ U* [* O5 o3 y: hset j! V- A) P* l* X9 U
( j + 1)( d3 i3 I# O7 y# X& B! _& w
]
6 A6 I* C {6 g* y; alet k 37 G1 G# t& G. v; ]$ F
let power 0" {. n8 ]# K4 j# n6 [
let local 0
# D& E# `7 l1 i; o q9 s zwhile [k <[trade-record-one-len] of myself]6 ?9 A& G7 Q# R% y
[) [) Y6 @6 d3 g; m
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) ' `4 W1 k# C8 d* `. e& u2 P
set k (k + 1)
3 |+ A8 E% c% W( E]
4 Y1 A& ~% _; t0 _0 ^; o$ g* x( ^set [local-reputation] of myself (local)
, W1 U/ y5 E. T5 {end/ g& q% D$ s2 y1 _) d9 H6 e% c, u
, \) U! p- [; Q
to update-neighbor-total
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6 T1 Q y" m5 x c. _' vif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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( t. N+ x/ f1 d, i/ I+ U2 `0 Dend6 B: c" p# V3 W4 T0 Y) q8 n
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to update-credibility-ijl / c+ G! D* f. g
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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。
' O$ d; ?+ J, u! V5 Mlet l 0. j5 R% ?1 V+ B/ K
while[ l < people ]
% `+ T7 r- J- r/ e& s;;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5 `$ \8 G! _' N; W; z! i4 O5 c% y
[
" U0 z: |% Z0 f& b/ Dlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)3 R) X$ @; M9 s4 r
if (trade-record-one-j-l-len > 3)
- @6 `) j n' S2 w- a[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-one8 Z5 q6 G: h0 z# ^) [0 c5 _
let i 31 \# l4 K' k2 w0 o+ a) p* o R
let sum-time 05 S% g; u. J6 ^; T6 R8 |
while[i < trade-record-one-len]' x1 x, q. x. K
[
* x q3 M% y5 o8 E) n% d/ N8 Cset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )) _# A1 t+ L; N* A3 s# D" {
set i# b3 f) I. X* L% u6 `: A
( i + 1)
$ {! u9 D" ~! o], w/ O0 q+ {* |2 @8 M
let credibility-i-j-l 0: G+ d0 j" r! m3 G6 n
;;i评价(j对jl的评价)
R" A7 \' \! J: G0 [7 p1 \4 `/ {& ylet j 3* C* `. I. N) {+ s U
let k 4! g; e# H8 N8 E1 J# M
while[j < trade-record-one-len]2 M. W# y% v) ^2 C/ W6 h P
[( x6 Y- A9 ~: Y3 y* R. j# B! w
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, k. J: U5 n) W8 N
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)% [" \ j) d9 q" e2 g& o" c
set j" z! X- g& {& B2 [4 h+ s
( j + 1)
( {( o h5 D& m. H5 S! d]
0 E3 F" \7 F! C; @4 x, kset [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. u. n& Y# V1 `
) b/ R9 l; z& ~* J* o3 _1 _& j( v6 r
# X2 m3 F" M' X' ]; r
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
# a+ d* t' N4 X; p/ P# G8 Z( L;;及时更新i对l的评价质量的评价, B- ^1 w- X* ~( d! j" F3 }
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
- p& q" t. Z% s. ]set l (l + 1)
; v- c, Q7 X4 F( S+ S& E]
! y% A* r; X6 o% q V+ T! Pend
* }( j3 e" {; j: B) @2 k5 ~) P: j# v3 q' E2 f9 e8 y
to update-credibility-list6 X5 s$ G7 H9 ]' j
let i 0- p) o# o) z1 O
while[i < people]
1 e+ j c0 t0 @0 M. s1 }[1 a- j/ Y% e$ J: K: y* W+ T6 {: f
let j 07 A% }# E6 n) d3 Q5 A' w6 }2 P
let note 0, G* ^* ~# C( p2 a$ x3 x# p( x
let k 08 H# [' D9 W) U9 C
;;计作出过评价的邻居节点的数目
% l3 w# q9 g" N7 P2 ?while[j < people]* @7 V5 U4 x5 p# }4 L
[2 M; ]! c& b' i6 [2 ?# {2 Q8 \
if (item j( [credibility] of turtle (i + 1)) != -1)3 K |! p6 a( x! o8 X% P7 }
;;判断是否给本turtle的评价质量做出过评价的节点
4 |6 k( B+ F; p' Q4 B[set note (note + item j ([credibility]of turtle (i + 1)))' S6 t6 l7 ?9 ^# _4 j8 o$ ~
;;*(exp (-(people - 2)))/(people - 2))]
) h& m$ j) x' ^/ R8 W" ]set k (k + 1)
9 Q9 M1 }+ i. A! V]
0 b$ T, N) T- `! T$ g; rset j (j + 1)
- ?6 E7 a. M& h$ D0 A/ u' f2 x5 i9 K]* Z/ h; V* ]1 y& C I0 o
set note (note *(exp (- (1 / k)))/ k)- o8 W$ @/ s0 u+ b+ i2 I
set credibility-list (replace-item i credibility-list note). [; L7 H+ ^9 @1 [. L; D) v/ z
set i (i + 1)
" Q ~/ x1 `' a7 f: E]
8 |: k( u) m" h4 B% @9 Yend% N7 R. Q" }* w; @4 s
$ `9 O4 z, s1 f% p Bto update-global-reputation-list; [, N$ q* Q7 W0 ?0 }) s
let j 0
2 D# L; k( h* Z# m' q2 Pwhile[j < people]
6 ^+ X* y8 y, T& A: M( h8 ` N[
) p/ `7 k8 w0 h0 [8 f \. ?# v* {. Jlet new 0
: s1 O& h8 q; d# x, p;;暂存新的一个全局声誉
/ S. u6 V" @; }- }& Plet i 0% i& s; m6 Q; U2 X F c. w
let sum-money 0; _( R5 Y: p X0 e
let credibility-money 0
! A5 @1 Y. ~$ ~+ `while [i < people]
! Z; A0 m4 k- R% B+ r[
5 w& |, l7 e9 i& J1 Rset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))7 ?. ]% T' c- U& y1 }8 A' p+ J
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
& U, O! `/ d5 [4 M+ kset i (i + 1)
1 n- O% u' t- O2 M- A9 `* I]0 \4 w0 n2 E4 p/ U8 P# q
let k 0
+ T* {- ^3 x- I7 \let new1 0
8 R0 a0 u: E) d3 M i, c$ q8 Xwhile [k < people]
) U0 o6 b; R4 ]( n+ ^* p[
+ E; u+ s" }% E- X$ i+ y: Fset 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 E4 g8 t8 l. w1 o
set k (k + 1)( `% p2 J0 k; p* W( y4 E" p* @
]
+ l W$ X& L8 vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
/ z" g/ C& T& D2 i3 ^6 L$ Vset global-reputation-list (replace-item j global-reputation-list new)
4 [+ o: n% N: W K$ U! Hset j (j + 1)+ N6 b- k+ P9 d6 O1 r4 Z: x! D0 g
]$ _ [7 l- p' O: j# H+ |
end
% H6 `( I" o" Z: ~5 U" ?6 X2 `) H; [2 F/ Z* O
* I5 K# d% b6 _/ f9 K
' P2 x C5 c: h4 B
to get-color
2 r; n" w3 u- R' i( L$ X8 n) A
: G1 @% J+ @ x4 z8 S/ J3 Hset color blue
4 R6 g/ @1 q- s5 zend
3 D% I* r) G& g2 L+ a6 u
% g1 u# k; r2 f: m5 R* Fto poll-class1 G1 z# T0 d0 V6 o* m) Y; `3 a8 \% b! q) z
end( @% O+ u5 f1 q7 |% b" Z: Q! [
5 _/ ^# w9 l/ o1 H. B' o, d
to setup-plot1
3 @# W4 p% S0 Y# k: V* W2 E9 [" x6 _. E; }& @
set-current-plot "Trends-of-Local-reputation") v7 q3 Q$ Z; k$ |1 b2 R: c
5 R$ s. Z: m2 V" S2 P. F+ z, ~6 I
set-plot-x-range 0 xmax
0 | D* G$ l+ ^3 ]/ a* O2 A, T# A' c1 t# r0 F ?4 V0 k P. T
set-plot-y-range 0.0 ymax
* }, ?9 T# M5 ~, y" G% E7 {/ I) Lend# d/ F+ h2 a' {5 i: T
, n. C" j j E1 R: C) _: D4 C: jto setup-plot2
- S9 \5 ~- [* y7 d; ~9 E; Z! a1 @: ]# Z8 x4 w @
set-current-plot "Trends-of-global-reputation"
* O# x0 e4 k+ v9 e$ r5 g5 s n. j8 Z
G: O1 u+ M; Y r2 d% cset-plot-x-range 0 xmax
4 f' @/ u6 Z+ M. Y2 y9 U1 a0 F7 p+ Q2 N$ q: r
set-plot-y-range 0.0 ymax
/ @5 \$ _, d# D6 qend8 m( V/ l4 Z" z" W* K0 [* \3 F
" b8 f* |( a7 nto setup-plot3% l. c5 B) D: H G2 U, b7 H
+ R |0 X& g5 b/ g6 ~
set-current-plot "Trends-of-credibility"/ h2 W6 ~ F3 [2 {) m
# `( k- |0 u) X* e7 q4 C9 ?set-plot-x-range 0 xmax
1 q4 B9 e5 |: x& P! b# C' ]% b' ~7 ?, U' |" S/ X( o( p) X& L
set-plot-y-range 0.0 ymax# Q' |" |3 c/ o' C! r5 @
end
. x) D% L4 c" p5 Q) {$ F% y; C$ a0 ]8 j( V9 K
to do-plots
x) N, _2 d7 y9 Q! mset-current-plot "Trends-of-Local-reputation"
7 _- z/ ^9 l6 X/ kset-current-plot-pen "Honest service"* F3 j3 \) ]* X, X' M/ ?
end
# |7 \' y2 _* l' _/ ?5 r A$ X8 a e2 l% B, Y
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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