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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
, g) x; m- a6 B- G" O* B" ?) Hglobals[
. p; t5 o* [& ]0 xxmax
L% L$ w( d* Yymax
9 s- j v, u# c7 |: n. v" qglobal-reputation-list
" ?" n3 j% R( e( R) Y
6 K4 N* K& P1 \# S4 v6 ~$ j& H;;每一个turtle的全局声誉都存在此LIST中
2 u8 t2 B% P8 ~credibility-list
8 ]% [( |; K8 ^- v$ g- W/ Y& J;;每一个turtle的评价可信度: H; @) Q& ]: v* G0 {
honest-service
5 @3 b7 i0 k8 d( C- o( _+ X! Y- _unhonest-service
! F$ a6 K# ]' ~- N& x1 goscillation
" G( ?5 D$ K" Krand-dynamic" `) q: [& w6 ?; j
]
9 i* l2 k0 m6 b6 P6 ]& e/ `9 @' L+ z, V
turtles-own[7 i9 t6 ~1 O8 H5 X/ P7 b
trade-record-all
6 v0 {0 q) g* X4 k8 V6 V) l( f;;a list of lists,由trade-record-one组成
- N- ]4 f! [3 r# V8 } D- t9 Y/ Etrade-record-one
- f( F* I3 N) @;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录: H" X8 X i5 U* \2 A9 D$ J
! @( A( E9 N* G
;;[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]]
! [- A2 K% y# a% c: w; @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]
" Y+ h) ]5 e# Icredibility-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
% I/ j2 \ F" u/ Y* t8 ^5 xneighbor-total1 z& n p- ^$ m. v0 C: g
;;记录该turtle的邻居节点的数目& b8 m) e0 A" s
trade-time
# o* }9 x' j7 V0 C A3 O5 r;;当前发生交易的turtle的交易时间
X' Q0 n1 Z! z7 Y+ R9 Vappraise-give# O' v# R4 S6 v5 h8 W
;;当前发生交易时给出的评价
+ A: o' W" P5 V& G# pappraise-receive4 W9 F: y9 U* N! f. |) T e b' i6 Z
;;当前发生交易时收到的评价
3 o2 ]! t4 `2 b7 s- T+ aappraise-time5 C4 W3 u) U" h: u
;;当前发生交易时的评价时间
4 u: b W3 t1 @local-reputation-now;;此次交易后相对于对方turtle的局部声誉
; V) _/ X9 P0 B5 J# Etrade-times-total
8 p! F; h/ M: d$ b+ K# `;;与当前turtle的交易总次数7 t- x, X6 x' p/ q. Y3 s- P J
trade-money-total
; v$ J5 w. F, Z. s+ p% P;;与当前turtle的交易总金额
, f+ {: d' |8 i4 R, D3 B; Dlocal-reputation
+ A, y+ J/ u3 o% f4 @global-reputation7 H' {5 F/ D3 U& F' w5 e* H
credibility
! Q. a' l2 l% R. A0 s;;评价可信度,每次交易后都需要更新
+ Z1 W9 d4 U! Y/ P' u, wcredibility-all; I# c' t/ B, x$ V3 U7 z7 F
;;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% B2 n1 p s. t- S3 @
0 @( A& R$ E( p% T5 S8 m7 B' \
;;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
1 \* h8 `% Z# y R' }& K' fcredibility-one
* e6 X! F0 y9 K) e' ]4 \;;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
H7 D. e7 C& Vglobal-proportion
/ i( _8 Y; `1 M* J7 \( ]4 zcustomer
t$ u( H% s8 Q7 Ocustomer-no7 Y* q. [* M4 E2 B0 f0 q; O
trust-ok
, q# g" Q& d% R. @4 H& K; utrade-record-one-len;;trade-record-one的长度
% \6 A& f9 v$ g" l3 T' e+ D z]+ X. |7 l% ^& N8 h' T, z8 C9 ]* P; Q
$ ~& D u' c* G4 u' s* Z/ R
;;setup procedure% R* q: h& E( d
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to setup; P9 ` C' t( X5 P$ _# ?
% e4 o+ X6 {+ a6 ^. X4 h" W
ca
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initialize-settings0 F/ o2 R5 X( _6 |& X
6 z) k3 u+ e3 s- d, ?% v* ^crt people [setup-turtles]/ v2 h1 w5 r& }8 k) A+ _! `, g
% v% f' C# o" v# e/ A5 i& c
reset-timer6 K/ A" W# B! ?- ~
2 K( H- ]5 v( @, {
poll-class @( h' I. i% ~) C1 T; @7 i: g6 c+ a6 d
( i# R2 L0 s* m
setup-plots
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do-plots3 C B$ G% d- y* Q% e
end H( {3 A6 {( q( B0 d5 g x7 {
/ }& B, k" ~; ?! Cto initialize-settings
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set global-reputation-list []
* v. m. _ Q7 H$ m7 e$ L J& d# {5 Q. ^# s% s% }1 E9 Y
set credibility-list n-values people [0.5]
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9 H, |/ q" h) Vset honest-service 0
]8 `+ X4 \( ~) V
" \- s" w0 g4 u4 p; v* gset unhonest-service 0% [' Q! x6 j5 b: R2 W# N: _5 K
; f1 S! C5 ^( `, R3 aset oscillation 0- D; M0 X% e2 b3 I) |
0 t$ T' }! o# J: o! \- I+ uset rand-dynamic 0
" J- z9 ^7 k/ \; Q5 ^end' n7 h% R, Q3 N$ p' K3 ^
" v/ L+ L `" Y& L, Rto setup-turtles
5 V& Z7 ~$ C& _! mset shape "person"% J, \, c( O& w' a" M
setxy random-xcor random-ycor
; r+ x/ g0 l( \4 ?3 N* Bset trade-record-one []" l5 z }3 `, |6 D. L: E& C) @
& w, s" u; n9 `3 ] N8 pset trade-record-all n-values people [(list (? + 1) 0 0)] 9 z2 D4 Q: x6 q! s
9 B2 ~; e+ }# ^0 zset trade-record-current []# f! D1 s. a. z' u. O: x7 V: a+ P4 h, F
set credibility-receive []# P+ H8 {2 G2 L) \. @8 W. N' D* U
set local-reputation 0.5 S: r* d7 w* F. {$ d
set neighbor-total 0
) \3 F3 h# p( K& kset trade-times-total 0( m# g( g# m0 D
set trade-money-total 09 N, q& k5 e( c; O' p, Y
set customer nobody. I4 K" P9 z) t( h4 b5 ]
set credibility-all n-values people [creat-credibility]) B g! x) _# ~6 w
set credibility n-values people [-1]8 Q7 I$ |/ ^3 Q: J! ^1 ^
get-color
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( r- Q$ a6 P+ U, X. d. e1 Gend) [1 u' C( a* S4 E4 J4 ^
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to-report creat-credibility
3 D# W4 T1 z0 M. {9 M% s' Treport n-values people [0.5]
+ }( X3 E$ [5 a j" }/ d Qend
8 b4 d8 ~7 r6 i' E# c7 U5 ]
5 T- Y/ ]- K0 X) x2 H9 n) Ato setup-plots
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3 H. F* ` Y7 q. ~ M5 i* S# Mset xmax 30
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set ymax 1.0
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2 m* ?! o }3 h: g R' m3 fclear-all-plots" h0 Y9 ?$ J3 q3 I! l
3 T7 j$ D( N4 c& E9 L$ bsetup-plot1( r R- t5 l2 [6 y1 P2 e" y( Q1 Q
% K2 L7 f0 H6 O/ c. Q! J
setup-plot2
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setup-plot36 h [1 T0 ~8 B( v/ u+ j3 b
end
: N5 p, E0 W& i) a+ I
" r, W! L0 L$ o) J6 q;;run time procedures
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to go, K) c: ?3 L5 I$ t6 U5 ~$ ?
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ask turtles [do-business]% t# r2 l& o. F2 `$ ?& H+ \4 _
end
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* B, b6 @1 j3 y) d4 t D W6 \to do-business % K. P" x6 P$ \- K1 ~
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0 \0 E) h" g8 U4 Grt random 360
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fd 1 N8 v- S+ P/ {$ h( h( a( S4 q( F
$ o5 u1 R- h. `$ t- R7 pifelse(other turtles-here != nobody)[
b, ?& F, [0 C5 x8 Q( p7 V D. u. t. c/ }- x& [- c5 x
set customer one-of other turtles-here! I: h+ k* Z1 ^ d( c2 @
+ l. h& V" J' O S. h& {/ V;; set [customer] of customer myself8 U& D! q- G2 D/ F& ?, N# c0 J
5 s" G" D; W+ ` ] V9 ?' N
set [trade-record-one] of self item (([who] of customer) - 1)
: x8 k9 \0 `# N& Y' q, Z$ k[trade-record-all]of self0 v& C- c9 h9 a) o$ i+ Z& P
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
& {7 b& g6 J9 Z# G0 I' \[trade-record-all]of customer
5 i# M8 p0 o2 I+ [3 ]$ ~. x
) @1 I, y$ s& H/ _5 O: M* [. x8 p Xset [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))9 A x0 l2 i. r) {/ W/ R- z
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ask self [do-trust]
: [8 Y: X! ^- w, T0 _1 [: I, e;;先求i对j的信任度
) o) {1 T4 `1 a+ `' z
+ E( y( D5 K5 ]7 |if ([trust-ok] of self)- w& z3 t7 ~5 Q. v O
;;根据i对j的信任度来决定是否与j进行交易[
1 a) O5 k2 E: Q( d& M( c3 eask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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) N7 W! K% d3 [! i0 x7 {[
1 p1 k5 |1 l; u. ~6 {- Q
0 T3 D, k0 S5 g" Ndo-trade
; B8 ~2 a6 G9 b( \6 `2 H
7 F. i; V5 |6 F3 U! qupdate-credibility-ijl
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update-credibility-list
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q1 P2 u7 n/ M8 bupdate-global-reputation-list
5 V: I& {, j/ G5 k5 H# ^' v+ }
" s$ _4 p/ K9 z3 opoll-class6 x6 i# j4 @# X2 [
# W |: E' Z8 R
get-color
8 o" F! D! p g1 ~+ q
+ L$ I. {6 `' o m# u* x]]6 u3 d4 T% o1 q8 F4 J, k0 }5 V
4 i. u3 ]: N U4 y8 h
;;如果所得的信任度满足条件,则进行交易
* O8 T1 l" f4 v6 r k8 u" }9 w& ]$ D; f+ N: ]! }& q
[
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5 t( ~+ d- C P* T9 ^. m0 G3 ert random 360# O; k! a m3 m) l1 y _' B
" X- r' y5 {! e1 P; [7 T4 }
fd 1, G: s' w+ z# S) v5 g; w
/ Q! m$ r/ n b' T. O9 S
]0 L; R6 A# l" n# D! @& W
. k; U3 s% f& s: ^7 Q; Send! l1 L; p8 b$ v' U
* _3 K. d9 B0 Y8 V& J0 }4 C; {* C4 k+ Fto do-trust
% ?$ A+ X8 L6 X6 [set trust-ok False. X! u7 V5 F U6 H$ ?
$ y. g( k* `/ \7 Q" w
[$ Z' {% m) {6 k. i
let max-trade-times 0% i6 ~3 Q% B6 ]% K4 G% e
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]], L4 z& s( |2 ?( D. [' C! h
let max-trade-money 0
% y: T; r# ]0 k% l+ nforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]9 b5 {, P* o) F; T8 l/ U
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)); T+ R* M" x# \; K
$ t% k3 s0 g1 L5 W* v1 l+ L
, w3 f- _* f" l( B/ M3 x: Hget-global-proportion* `+ D. i/ c) x* v: h1 [8 G8 @/ ]
let trust-value0 V& G/ z+ A+ o. k& ]
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)* |3 A \8 H2 E3 A
if(trust-value > trade-trust-value)$ C' I f- i0 A$ l
[set trust-ok true]
6 x( j2 X, l0 g+ f n" [! B, a, vend
9 }9 R, Y s: s, O# g+ x' K) v
$ N% A2 E/ v! B# Fto get-global-proportion, D- O2 ~) ~; N# i
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)8 X5 U/ Q& U; T* ^% z
[set global-proportion 0]
1 b( {" E, ]: R+ l) ] ~[let i 0
/ X9 m& u4 B& f8 d; L: u" Nlet sum-money 0: u, q5 t( C$ c! `
while[ i < people]+ `+ E: C3 I/ {* n9 a
[
( K, {5 Y$ Z/ h) x* e* |if( length (item i
$ }9 T( C% |; E[trade-record-all] of customer) > 3 )6 M) J4 ^! d V- C' x+ E
[
8 s3 v1 v6 ]( N7 h7 E% |0 fset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
+ _/ l% H8 B Q7 }3 n* s4 U]) M3 O+ y4 N9 e9 \& o
]3 T$ z4 f' _9 v% p3 z
let j 0
+ J# Y( o4 g; G$ alet note 0
. T/ y7 J0 D& o& N# Jwhile[ j < people]
( O/ k, Q4 B/ Y[
( P; v+ f, R" H/ Q" n- j! hif( length (item i
6 q | ?# }5 z9 o$ `[trade-record-all] of customer) > 3 )
% C+ A- e/ a# D& h* @; Y8 U4 |[
0 b. P# L$ Y# o4 q) ^, gifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)/ l" Y% i% y, s* u+ ^& r0 E2 `% O
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]/ u$ S+ O3 i2 m; a/ T2 S# b
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]$ X. Q/ w. i' [$ ?! T9 X
]6 \8 \3 f/ z% R, s, }, K$ n3 }
]4 {3 d$ T" t( i
set global-proportion note
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end# e8 z0 P9 S9 {
, M+ u% s d- W9 z# H# x. {: X+ M) }to do-trade
- q0 |% H5 X2 n b8 w! p;;这个过程实际上是给双方作出评价的过程
* @0 S9 U: ^2 @. ^1 l( A' U! Tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
9 n4 q2 O0 }$ Q1 C* e5 Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价% ]& W6 h! A2 \1 s# A' }( T! T. S
set trade-record-current lput(timer) trade-record-current/ x6 d1 k- E: o
;;评价时间9 x) ?2 M9 T1 _: ~
ask myself [% ?$ ^8 _. p& _; `
update-local-reputation1 c# p+ V/ b# Q5 G$ O. T1 W4 u
set trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
/ ~& R/ [" D) m& y0 n;;将此次交易的记录加入到trade-record-one中6 |. m& Y9 o7 {' w, g0 Z' ~* k
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)' N" A4 v7 o- |# [0 ~, `7 x
let note (item 2 trade-record-current )
- S" J: x. n4 v, Q7 w+ T5 iset trade-record-current: F s- Z& r$ G
(replace-item 2 trade-record-current (item 3 trade-record-current))
. j# k! F" q* P% s% B' Dset trade-record-current
: y6 B! W+ s8 p3 i2 ^& R' w(replace-item 3 trade-record-current note)
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ask customer [% R1 q9 C9 L/ `( o5 O/ z& H
update-local-reputation
2 s8 m' i0 Y8 U" Y' o Oset trade-record-current
7 @& A' @! J, @3 ?3 z- O(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) * J5 M+ }- t+ c3 f
]/ u" _1 h- e. | Z* i
$ `) Q, j( ]5 ]6 j5 N& W% l$ Q1 a8 g
set [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))! V! t% i, e" y5 U0 u
;;将此次交易的记录加入到customer的trade-record-all中* } Y+ O% O5 W7 @
end
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to update-local-reputation
$ j4 N! \* g; C7 @4 K3 f0 Lset [trade-record-one-len] of myself length [trade-record-one] of myself7 n4 t& l7 Z( d6 L- }2 N
% ]0 M" b3 h- t2 |% t4 V
& T) ~# ?6 a2 c' Q% d( Y' s;;if [trade-record-one-len] of myself > 3 * T# c2 x5 U( m' V3 f- X' ?
update-neighbor-total. @; S9 B4 B1 A P9 t
;;更新邻居节点的数目,在此进行) k" H, G5 P( _) e
let i 3; {7 W5 G" D) f
let sum-time 0! Q/ I& O7 k+ A. w1 O
while[i < [trade-record-one-len] of myself]* i9 G: d: r' ~+ E, X' s* I
[' w! g0 f3 I- {5 Q
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 A, ^4 A' K+ |9 p
set i$ t' ?3 F2 H b A) c! U
( i + 1)1 }! c# [6 ?5 O: ^
]" X, ~: I0 z( V/ Y- e
let j 3, g, ~$ f1 q+ A' T) {5 e
let sum-money 0
# E/ M K) }) t- Qwhile[j < [trade-record-one-len] of myself]
: O1 I3 _4 [1 ?5 \# f. X[
! M. j$ a' q7 F7 s! }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)
9 ]! V3 Y' Y& k& |- X) S' Q5 Lset j
# V, {) U, p R! H/ x# A6 B& S( j + 1)
* F0 _/ R' i$ [/ ]6 X8 @: Q; Z]! f7 h, t4 J1 u3 ^. c9 o4 Q; ~" O
let k 3
" w' T: _* U \& X/ Y. ilet power 0
& H% z- A- a+ C7 i' Ulet local 0) W# X9 @/ e9 D& Z0 _7 \
while [k <[trade-record-one-len] of myself]; e$ D# P0 K& P
[
: a5 E4 [' v8 x7 V0 \8 x" 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)
. r) D* \ H* B% y6 ~4 a) k+ ]set k (k + 1)6 \/ D7 S0 y8 q, J9 _! G9 Y- U
]: h4 [: }9 z2 X) o, A+ i
set [local-reputation] of myself (local)
7 w! I' O' V: s! t) Xend( S) I" g S$ }: E' P% b- n
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to update-neighbor-total e9 k E" \6 m# p# y# B
. w" {) O3 m1 l7 Z+ k6 K
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
+ V _6 h% ^' |) B( l% H- S4 R, i
$ \& o) M% F% p) C
$ w; r; v p9 z0 q" [* q, aend
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to update-credibility-ijl - I8 G/ w2 E9 W" E& y' `( E
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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。) k: I4 n7 B) e, i5 b
let l 0) e$ F5 E/ Z9 D; L' r# i
while[ l < people ]( b* \% j& Q7 j) c5 f( K+ {4 W
;;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 S; w- B0 a" ~9 f5 ^
[' v; |" C( G: u) O1 D3 k9 ^( J6 [
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
# \- U" j$ f$ sif (trade-record-one-j-l-len > 3)
! v- B, |3 f/ U' D" r$ Z[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
5 e8 T1 t( l& w% s# N5 [+ Zlet i 3* @* p) _4 L- `2 K) A9 n" d
let sum-time 0" c J# K, n5 k6 F4 k0 h' j
while[i < trade-record-one-len]9 q& Y) p1 v% ~0 f0 Y( ?
[
/ z7 q7 g# O* x4 [8 q* w4 z; S2 Pset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )5 L/ h/ @9 G- j: e, B& A4 X
set i
) r7 n* S( x9 K8 E5 _! ~: T$ \( i + 1)' x8 [- M+ f- l
]
$ `% U/ I+ o% m6 a+ j% I7 jlet credibility-i-j-l 0
9 Y, ^5 b4 u3 R! ^6 B# o% K;;i评价(j对jl的评价)
- P$ V0 e$ O9 [0 hlet j 3. |8 b0 K, T+ U7 _5 d
let k 4
P# Q& q0 V2 ?+ [' vwhile[j < trade-record-one-len]7 r; j% p4 ], }6 `
[
2 |( H; S# ^" [) N7 q3 ~, Bwhile [((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
; E7 X( l4 x: R; L' H. r- t7 n3 m* ?+ Pset 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 L2 F6 D2 F3 O7 W. p( p7 {) ]$ G
set j
' F2 m8 c" ^+ C: t+ C( |5 a1 B( j + 1)
" M* l: {' p1 d]
% o0 c) e. W- j: R0 iset [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 ))5 r* K; h+ s3 c1 C5 u2 S
3 |0 A5 P! V& m/ |% c2 X' ] F# y/ |
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
1 `5 a1 [ |8 u;;及时更新i对l的评价质量的评价
- I- c3 h. u; X/ {! n* L9 a& m) \set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]' K0 V$ R, R3 z0 c2 v( s
set l (l + 1)+ T( S2 B& b, T0 L* p
]
1 u* \6 h6 w& f4 K# O* b# Fend8 x3 Y; v' M$ F" y, U3 e. F( J+ x8 M
7 K3 Y y; B( H) b9 F ?to update-credibility-list: X& h/ g; }' g( s* u, R
let i 0/ R7 g& b% U6 V
while[i < people]. P% H$ T8 u! y# Q8 V2 ]) D; m
[
# W5 ~& y x$ i! q* clet j 0
9 b- M3 c: W3 D8 G4 Y) F( alet note 0
/ i3 R/ `0 g( U4 {let k 0
' U" A9 [2 W) r;;计作出过评价的邻居节点的数目
" g$ c" k- a5 U' {; n1 w3 y( Y" _2 owhile[j < people] f" t% N& l- v% {! }- {
[
0 a; {0 s1 I2 U& aif (item j( [credibility] of turtle (i + 1)) != -1)! R& h. m# S2 L, r) N) |" Z0 ]3 w! _
;;判断是否给本turtle的评价质量做出过评价的节点3 w4 e- E% U1 U6 O) y Z
[set note (note + item j ([credibility]of turtle (i + 1)))' k2 l/ U4 F3 G, p: u w0 S* E
;;*(exp (-(people - 2)))/(people - 2))]% }- J* [( m( S5 `& ~% q% {
set k (k + 1)
; t$ o4 N# B. x5 @6 m1 H' c0 @]( _% _# W3 ~% ~* j8 |
set j (j + 1)
S9 J: P+ [7 F! b) ^* w) m( ]]
/ ^- Q6 G: N/ N' [6 Iset note (note *(exp (- (1 / k)))/ k)" D1 Y: Y% `' A. @ S- K( P
set credibility-list (replace-item i credibility-list note)* o# s( A9 `+ }4 Q* {, L7 F
set i (i + 1)2 `4 A+ N& n d* J2 q
]
6 u! b. V; \0 xend6 D: T+ T7 b& J+ j
# C0 P! q( [0 F& k1 _; {
to update-global-reputation-list' Z5 _! ^2 `, V# w& H9 @, ^
let j 0
- p- J) ]' Q$ q) ~& \while[j < people]. ?. F# H% w6 _8 Y( n! t; g* Y! b: v
[
0 U' N# O$ l8 ^. J% Nlet new 0' Z% X- N' n% |- E- h! g
;;暂存新的一个全局声誉6 i1 F# H4 ?/ H5 P: @/ L7 `3 O
let i 0
& G w/ c/ [1 T$ @let sum-money 0# u5 z3 D6 w. e2 t4 g" a3 N# \5 e7 G8 @
let credibility-money 0
' s! k; l! D9 l0 V6 I4 s' t* awhile [i < people], P# J1 K/ o w
[
% W; {0 ?/ Z3 tset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))). q4 |8 [4 q! T0 b) W
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' t/ o F! u. S& `
set i (i + 1)
+ Z' v! x8 M/ L/ D* S/ T! p5 B5 N- M]
$ C2 f: V/ c; A3 S0 ^) d, llet k 0# ^4 F) k) w$ ^0 F* L- u1 J- K4 W
let new1 0# o) z1 b$ C9 f* e5 e4 @
while [k < people]
( \) ^& i; o- v6 K8 ][
/ Q* h+ F6 }7 j- j6 l. j' Y# Lset 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)
/ u% D/ ?7 e, V: v6 c3 yset k (k + 1)
' B- t, G4 ^. g7 h& U- v4 U]: Q: e2 L" Q) c3 u$ [
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) : D3 V, a/ V# `/ K
set global-reputation-list (replace-item j global-reputation-list new)
/ J0 Z* p- a4 @+ ~9 P, G3 Y/ gset j (j + 1)
- `! x' P( `! R- P R! S5 _4 O]& _" G$ E9 ^) ?- v# Z
end0 b) `4 g3 ~9 d* I
g* W* G5 h* ~# o9 s6 |, o5 d
6 `) N' L5 c& b6 S' D
" z- L4 Q5 J% L6 @
to get-color" A8 t9 q# e7 y; t6 s+ T
+ \; T6 v9 i& @2 Q/ N4 p+ t$ R9 ]
set color blue
% {( r; y8 T8 O. Xend8 |3 {8 v2 c3 _- b
% Y% c& D, K/ d+ U; a" R# h C
to poll-class
! v9 s$ K8 I1 v2 J$ l% F7 [0 @end
+ b* o/ S% h. i, c* t2 _+ K3 u9 e# A/ A* D9 X7 T! E. D6 ]2 v
to setup-plot1* c" ]/ E8 u" N# K* } J+ D2 x& r* |
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set-current-plot "Trends-of-Local-reputation"5 D! f ]+ \3 M6 f8 v1 U6 Z
: ?2 {: g# c4 z9 v8 J2 [0 ^
set-plot-x-range 0 xmax' x) @1 @5 Q: [* ^
9 w- ?" S7 {; O0 ^2 B. Iset-plot-y-range 0.0 ymax
) h, ?1 c4 D @end
6 q0 u, p' S5 S: K" }, U: O
4 U$ m. z4 ]! M$ r+ {to setup-plot2+ }, z/ \7 ?7 B
( F' `- W) |% x, {: bset-current-plot "Trends-of-global-reputation"
: q& }- Z( m$ P
! g, F# G4 A5 C; e9 iset-plot-x-range 0 xmax2 O; Z3 S& b2 ~! T5 O+ J
! j/ n6 f1 \. n9 j
set-plot-y-range 0.0 ymax
/ {6 j3 s; T+ g5 r: j1 Kend
" v1 F/ ~' x: B: r' }3 b
# q& {/ b( h+ [0 ?- r0 f4 wto setup-plot3
! y7 n/ J9 H+ e" F- h: n) c
6 x/ \+ \# p2 p; ~ vset-current-plot "Trends-of-credibility"; n; w7 J$ A$ Y. ~& _1 ]
* Q3 ^2 Q% }2 P0 `$ yset-plot-x-range 0 xmax) [8 ?2 b4 U1 ?6 n% }2 O2 R+ t
( i! W0 B* ?3 @2 K' j2 L2 c
set-plot-y-range 0.0 ymax
. y. x6 q9 _; j6 _end2 X- r; s- e5 W* n/ ~$ V) M3 l
' \: O4 B. [% z
to do-plots
# E. A% P6 e$ ^3 Bset-current-plot "Trends-of-Local-reputation"/ C; J, i) _+ a4 |& p; T
set-current-plot-pen "Honest service"4 }. S/ v5 ?9 L- b
end
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; m4 y2 E. M, o$ c# M[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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