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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
$ z! c. ] C* P% Y! yglobals[' `0 ?' _. z) ~/ |8 J5 i
xmax' l( N8 Q' [4 J% u. C& P
ymax
6 w$ ]! E6 _6 A( J6 S/ \global-reputation-list
8 S* z' b% l6 P/ q% a+ S( r% [
% U( ?5 G) h' z4 y2 Y4 @. g6 l;;每一个turtle的全局声誉都存在此LIST中
" {: w5 y5 W/ b8 e- Mcredibility-list$ ^: Q" I. `" A4 ^$ P) V5 c$ j
;;每一个turtle的评价可信度" e2 Y" [# {/ B! f4 n. A3 L% d
honest-service
: F! D% h+ f4 G$ m9 Munhonest-service
4 D7 H. o5 ?$ b a i3 L- soscillation
2 I) w& H$ y- D$ i9 F u/ H/ H9 arand-dynamic9 ~' n" i# I; c9 f
]
0 W- h7 I* }. l7 ?. Q5 L4 s$ p, |5 c( g( F
turtles-own[
9 U9 U6 O$ g. q I. ptrade-record-all. L2 f# P1 D: }$ G7 e6 y) z/ p
;;a list of lists,由trade-record-one组成( B; s6 g6 P0 n6 b1 q
trade-record-one
7 N( I9 o; v2 G;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
* [! y3 c5 y* k- U" d" d! @3 B$ V3 I) A7 U
;;[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]]
; s* r( \; R9 I' m, E) ntrade-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]+ h/ v8 x8 T8 Y1 x, s5 c, p
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- h- M r+ g0 o( W% b& Q5 v) x
neighbor-total/ x' M2 l9 H1 g
;;记录该turtle的邻居节点的数目
6 a. F% {- s0 j* e# w1 ~trade-time$ B3 S$ \+ g) t9 ^ ]
;;当前发生交易的turtle的交易时间
0 F% V1 p: j. C& p; aappraise-give
) v9 S, X& _1 o;;当前发生交易时给出的评价3 b# G" Y4 q, L9 Z% E2 h7 s
appraise-receive
2 B* ~' h* R( I6 O) M9 T: D;;当前发生交易时收到的评价$ \& T5 z: N1 v3 W& A1 X n* y' z
appraise-time
+ W) D3 d- ]0 w% P" a;;当前发生交易时的评价时间0 z Z$ o# _9 U2 T8 t: d
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
: M6 _, r1 e5 e: b$ qtrade-times-total# C: X0 l3 N! ~3 i4 S8 \
;;与当前turtle的交易总次数
$ w: u! m( q- a$ \: X$ c) xtrade-money-total& _4 g6 g) i7 o2 t8 N
;;与当前turtle的交易总金额4 H0 C8 i' z0 l* {, R+ M, y
local-reputation/ [0 H8 m* z: q' K7 m" p
global-reputation# D. v4 O! G5 H. Y5 o4 r
credibility
0 s+ i, K3 o4 d4 w& Q;;评价可信度,每次交易后都需要更新
8 W, j4 K1 p7 s' dcredibility-all8 [ q% P- c, D( R6 w+ E6 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
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! Y0 Y: S' o! Y! y6 }1 q' {;;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
+ F/ B i, a5 B0 D5 F% I& {4 [credibility-one4 l) |8 v2 ~! Q) L
;;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" J3 Q2 V. s2 h" I
global-proportion
! V& i- n- s6 a [customer g" N1 g* a& t( M1 C
customer-no
2 G/ Y. }+ n' F- m C: D7 q6 h' utrust-ok- @- Q5 c/ [( h, M& L8 S. J' Y
trade-record-one-len;;trade-record-one的长度/ Q, M# k, [) `, A4 z: [5 M1 k! G
]) r: Z; s7 l, Y/ v e# P
* z* U8 `) n4 ?+ p2 ?
;;setup procedure" y) |* i& k3 v" E6 T; ?
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to setup6 j- j7 g# p( _9 F$ Z" b
1 C- n$ T/ r7 Xca6 Y! Y: p" `4 w( Q1 K. R+ l7 c
6 i# S4 R0 z3 t+ ]! k
initialize-settings
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crt people [setup-turtles]
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reset-timer
1 ]: `4 ~: |9 d6 E9 D- Z
0 W% c3 p+ W+ p) P% p" [poll-class, s- m& \& F. P% a% ?8 k, j- M( S
4 ~; k& c. [! k
setup-plots
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- p3 @: J3 w( V; Ado-plots
2 z0 h0 |5 n! H2 Y" Q! Eend
; ]3 ]: o5 a$ @) Y2 p9 P) z X \+ y$ q( I, u3 X
to initialize-settings3 ]# W% P: V9 f' R& Q! _. g& M
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set global-reputation-list []
3 ?! q1 p$ }. Z( U: d# n
4 O# ]$ e( |6 M1 {set credibility-list n-values people [0.5]! p$ C! T" o; a4 d3 v
Q6 e' P& e$ m8 j1 _
set honest-service 0$ k) S8 f/ ?, }4 N
/ e' F) N* l: ~" v5 ]9 Uset unhonest-service 0) x5 [4 r% F' r+ E+ e; P6 j
) F! Y. q9 N/ e/ c: k$ J- S. Y- ~set oscillation 0
) k+ y+ b" W& O8 O! T3 y% z2 X
6 h4 q& E% B2 x+ D( n( k0 }set rand-dynamic 0" t& L# S2 O5 v3 h+ I5 s, ]; J4 B
end
$ z- Q% U# |! A. S/ _2 u2 y# M
7 N5 S) N# E9 H; rto setup-turtles
; T: O' c$ X) p+ ?set shape "person"
% P/ u- E! e, [: J |4 W& {setxy random-xcor random-ycor. H$ Q$ J' N1 T: [6 R
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
1 l2 [( Z. A) U0 l3 E7 _
$ K: y. c' m1 u @, X: n& {; dset trade-record-current []
8 u1 p( z- F* T+ c4 Fset credibility-receive []
1 I+ h1 h; Z% H; M0 e Y, W: Pset local-reputation 0.5
! Q% Q3 e, x% @; L$ aset neighbor-total 04 S! L0 V+ g" P& a: i
set trade-times-total 0
2 v( ]$ N" }: A( t5 qset trade-money-total 0# k9 ]( ~ [1 T0 H
set customer nobody
( ]5 ~% q# u; G- k# Vset credibility-all n-values people [creat-credibility]
' I. \# f$ _; P% \2 Q- Aset credibility n-values people [-1]3 N% H* _! e3 T! ^
get-color$ S& w8 W y* T5 j% m
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end
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to-report creat-credibility1 _. }/ @# c0 a" k3 O4 E
report n-values people [0.5]% H( `/ i I: c7 ^
end9 f2 u& ]: F/ K% R' U0 X, b6 p
/ w! y5 q# u" C5 H w6 fto setup-plots
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set xmax 30
# {$ m) ~: b& \8 U6 \
4 Z: _; d6 S' X5 k I" e, d- rset ymax 1.0" a2 L0 E( p) n0 } k
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clear-all-plots
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6 V3 {, n2 H2 n o k2 [setup-plot18 x3 O3 [4 j3 Q( E
" k3 V! Z b9 V% jsetup-plot2
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setup-plot3, j1 r5 s5 ^1 ?" z% X" O
end$ R/ H0 j3 k" K( X4 R7 l
/ O1 A6 ]- ]( N/ C3 }- i1 M
;;run time procedures
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to go
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ask turtles [do-business]
; u6 P7 h" n' Y4 ]: |7 j' aend
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" ?5 Q9 r( @5 Q$ Y* Wto do-business
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& h/ H2 c; m/ _7 Z0 ?
rt random 360
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9 d, @/ `9 y( v p* ^fd 1
5 L+ y8 M: r; d! D# A! h
8 |/ q" X/ ^; w* t" y. u. e$ Fifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here2 a% s* E: k% m8 X9 y) ^# |4 j
) r5 k+ @# u ~; |
;; set [customer] of customer myself& q0 H. z& i7 y
- D l% Z2 `' |) `# dset [trade-record-one] of self item (([who] of customer) - 1)8 G* Y- y. T4 x+ U) ]9 t. j
[trade-record-all]of self- g4 s2 K5 K) F0 m) m0 V
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self* j4 g& I/ z9 d8 Q
* S. }' H& M3 c* ], ~: Bset [trade-record-one] of customer item (([who] of self) - 1)5 T- j' Z3 g; K4 S& {
[trade-record-all]of customer
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set [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))
+ z) F, a$ z- a+ D
9 Y+ S3 v/ s/ ?, x# f3 }ask self [do-trust]
" r0 K4 d, Q& k* I2 F" V;;先求i对j的信任度
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if ([trust-ok] of self)$ `$ }0 K' D; \
;;根据i对j的信任度来决定是否与j进行交易[2 b8 w7 N1 H' R5 J5 }# P
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[3 e9 y4 p1 E: ~- f
1 @! S F5 m7 m! N2 m( C; Ddo-trade
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update-credibility-ijl" L. L$ T% Y7 K0 W* J
3 `" s5 f# M) l& t4 U
update-credibility-list' d- F. F& I. r! h6 U& ^# n8 z
+ o' s3 U- u+ ^! \* m* S* F6 u: O: r! Z( a) k; A
update-global-reputation-list
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poll-class6 Y% ]; _3 W! C: K- ]+ ~
D' D. E6 M+ c$ _+ c# D6 X7 c# t
get-color
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]]. e: {: @! y& |: |$ I( K* g1 R- \
/ A/ W0 u4 }0 I- I
;;如果所得的信任度满足条件,则进行交易
, [7 G5 O" `( D1 R- v, S" u2 N
3 W, v3 }$ V1 j4 U; t# E0 C[# r* u9 A! k A- L R! N% S
, e' _$ W% L% A {$ [0 c
rt random 360
: `1 |1 g5 t" V: Q# W" p: {
7 p4 F$ l, }5 C% y9 u0 {fd 1
( _) ]$ R% c3 S/ `( e1 U
9 g+ R, z* `2 d- y, H! w/ F- U]
) P9 @# ^' ]- m- n
4 m& p3 A" V# H5 {end
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6 S* n3 e ]9 ]0 M) a: I, Dto do-trust
$ o7 X4 g, E, \ rset trust-ok False9 Y+ D# z4 U/ E/ |( P' ~
0 r$ x5 r8 e3 n
1 B# S2 b- ?/ B6 e9 \let max-trade-times 05 K2 m. S5 L& [& T; f$ o9 \8 D
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
z" q7 @8 k6 g" A! Tlet max-trade-money 0; q. ~+ }, P( D1 i6 t
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
3 Y9 ~8 ]5 X6 klet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))# ^. ^7 f6 r! J0 r) L' S
9 y; H5 \$ Y. t* u* X5 h- \
% I" ^5 U. }" {( G" v$ n# Mget-global-proportion, H0 p% W, ~5 _" n0 Z' d
let trust-value
; C6 Y# x4 A, Z) 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)4 P4 l! x1 l/ C" O" a3 K. h; c
if(trust-value > trade-trust-value)
( q6 |" A, H# w9 x[set trust-ok true]1 o8 S( n1 }! ?) O6 [# k
end
. M% M7 N" Y' K" @! ]# d6 v7 ~0 s$ M3 k/ a% z: T8 W6 ?
to get-global-proportion
$ E( B0 }) m, o6 K. Y6 Z) ]8 eifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 }1 V$ e; x) ^, l& L( B[set global-proportion 0], Z+ h; {$ S, }( d
[let i 0
5 a) Y" u: l z, L" Klet sum-money 03 t1 z% Q' Z& R: K h# ~7 O
while[ i < people]- u& E1 Z: _/ U! B7 b0 Z; Z
[ w7 J2 ^* w+ r8 O9 n. S$ a
if( length (item i
. F9 v& m% a, M' r[trade-record-all] of customer) > 3 )5 C+ w p1 o0 M6 r! s
[
3 P" I6 Z j$ H- R: M+ Q# Oset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
; |" |, @: e' u( J# i]
- m! o* g# ?) z% H* |/ Z6 l]
- z2 K- m7 h9 \) _2 a/ p8 ulet j 0
+ S% M4 g0 ? k. h1 j- ~; ?let note 0
# f* x0 G; Q% V& H. Y% y% O( f+ |8 ywhile[ j < people] y1 S& H& G/ A7 Z1 H
[2 t/ d' a1 X( o% S2 v8 [
if( length (item i
. {. U" {. T' @( o ^; d2 t5 M% Z[trade-record-all] of customer) > 3 )
4 z- ?7 }5 X0 y[
; L% u: J0 Q) p2 mifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
8 E# ^* x' G% D- m3 l% t9 k: i[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]& K4 ?0 [" l0 I7 @4 n
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]1 g9 X6 P+ U% U' `6 N
]$ \/ R r8 \! _6 d5 \ y' `
], o$ m8 \, C) [4 k! x, K4 C8 \
set global-proportion note6 b* K5 y6 h- M2 H
]
. A2 z; ?" L, v0 V( ]end
% K' O p( b+ z2 p- v3 D1 a, j) k3 K
to do-trade( v3 i6 F X# s& ?
;;这个过程实际上是给双方作出评价的过程/ r `& ]" b2 Q& k2 \
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价( x4 k! y7 q3 H) B. |$ Y9 j
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
) t4 B: P1 o8 i' L8 A/ Gset trade-record-current lput(timer) trade-record-current
& N) k! G1 m" K8 l% _' ?, u0 {;;评价时间: q9 _8 b1 ^: V, s! U: O
ask myself [
6 S8 O* [$ b* C" p) u+ Y- @. l7 W9 {update-local-reputation) i! |/ x( h1 F5 I% C) f
set trade-record-current lput([local-reputation] of myself) trade-record-current- y1 n2 d: I; J; d0 w/ M; Q9 U/ L
]
8 f/ Y0 p/ M/ c! Eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
# P' R0 P" r" n2 q;;将此次交易的记录加入到trade-record-one中! o% W8 h: m2 h% S. g9 p6 C3 O
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)" x4 j! V. x8 V3 t; ~
let note (item 2 trade-record-current )
2 S# O' Q( l: ]2 v. Jset trade-record-current/ x! H) z6 y0 s# z% }
(replace-item 2 trade-record-current (item 3 trade-record-current)); r: r- N* B$ @& T
set trade-record-current% @; ? @# `5 L, z, P
(replace-item 3 trade-record-current note)5 c3 }4 r; N2 L" I8 e5 S
( T6 I$ o6 L- V
- X/ D0 V/ C) f1 jask customer [
: N! G8 f" b* t" Uupdate-local-reputation
4 S; ]6 f2 v6 o; @, r3 M7 p8 yset trade-record-current' s7 w) E: V- k8 ^' n+ \
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
0 B& U0 C) G% y9 k# |3 ^]
9 S. P% d4 j: \8 f" d: v+ {- b6 ~8 Y" ~) r/ `0 i
1 n% w8 J" j0 y: Y4 l9 d
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' t. O2 j* {: ]! ^! T2 [6 @
/ d @$ H6 w z. kset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& D7 c' j( m! \7 u4 O;;将此次交易的记录加入到customer的trade-record-all中
I" L1 t3 q! P; r! F" send
N. O- _* ?& K, q% G) X: w
! V0 f1 b' C# D* o6 _to update-local-reputation
; T$ y# q6 T7 s& \+ Fset [trade-record-one-len] of myself length [trade-record-one] of myself
/ V: m- T$ v. s* ?4 c1 _
0 \' `% N0 c: z1 D+ O! c
- Z* f$ M& `* U$ x;;if [trade-record-one-len] of myself > 3 % n6 s! c* V4 D9 [$ S5 _
update-neighbor-total
; x) D+ r d: _8 T+ t1 \;;更新邻居节点的数目,在此进行
! b8 V- y; s( {* m Qlet i 3
- J+ |6 J) r+ }0 z% v% ^let sum-time 0, R1 g* @, e0 c U2 u* @3 B$ G& p
while[i < [trade-record-one-len] of myself]
$ S3 n4 B1 K4 C5 C[
H, Y8 a" O8 `* |9 eset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
. h8 ` C& b6 v R' {+ J( qset i
0 s) I' y/ [( }6 ~% A" y( i + 1) b/ Z& i9 U( X; D7 ~
]' O9 U6 b! B5 s7 a
let j 3
0 m6 L' _9 J. t3 I( Z' a, t9 ^let sum-money 02 [, i. M/ ]# T7 ~9 e
while[j < [trade-record-one-len] of myself]( ^ j8 M( H/ ~* c+ x/ g6 D3 d
[% Z# ~& d6 X9 A1 z9 Q
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)$ u( |; l- [) g" ]+ u: K+ ~; h
set j+ K9 d0 {8 \4 |
( j + 1)
3 `1 p4 J' s2 @- q6 H( l]6 z) v. k7 { C) A' _; V' v
let k 3
2 j! g8 X* Q3 d k9 ^' e( vlet power 07 _8 M: c% w" c& Y }) a' |; E
let local 0
: I/ C; u8 g ?- \: i, c: [( ^while [k <[trade-record-one-len] of myself]
$ h1 w. N; j; {8 j7 F[5 [+ D: m7 N% Z Q, J
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)
8 y( {8 P/ \6 P; E) n3 aset k (k + 1)
: j6 @: I# `& M y) ^]% ~' q( q- V* o, M
set [local-reputation] of myself (local)
7 R u2 D3 D! Y' ^4 e/ D: B- J' \end
+ e2 ?4 Q O/ u7 c: c' M% s$ Q* a5 E' B8 T* n% d& L& c4 @4 D
to update-neighbor-total" r# V2 I) f: M8 L
& Z/ ^1 U4 y% S1 N/ G% w) Q& r3 [
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
* I; H% x: ~8 d0 X) U! S
A8 t% C# \$ z/ U
$ @ W0 a' T. R! U8 Y& [9 {end$ n' l+ x, K! H# z5 n6 \
# E; X0 O9 u& E+ S
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。
# _# G1 K) u6 V! x: ^) blet l 0' f% u+ N% I3 N) F7 |
while[ l < people ]
1 [+ z3 O( |; p4 V4 d/ h+ Y& M;;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)
3 W6 i) o5 V6 |if (trade-record-one-j-l-len > 3)
1 |& D" N% U9 x3 a8 c. T[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
7 \. ~8 T: l+ v' G1 c/ d5 g+ Tlet i 3
5 L, S! S5 @$ rlet sum-time 0: e' c7 h& T2 g% M
while[i < trade-record-one-len]# l9 X$ N2 u+ m2 {" Z' B" \$ ~
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): p5 I: p+ L$ p+ n5 y% g+ g- Z+ H
set i4 q+ t4 J' a* y8 K: K. Z# E7 h
( i + 1)
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# ?! t' T9 q- Elet credibility-i-j-l 0
; [, |, z/ o. x7 Q% L' p;;i评价(j对jl的评价). ]3 w1 {! b+ V) x
let j 3
C) u+ A+ O* x( S3 slet k 4: S; M3 Y1 n- h" ?! g* }4 Y' h
while[j < trade-record-one-len]3 B6 u- ^: [9 t3 F6 Y
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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 a* G( N" [$ }) I6 B
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)
: s. m* ?- L% K1 Wset j: K7 ^. B+ o' G6 H7 @- l# ]$ w' f) V
( j + 1)( Q( o2 o9 q: I) B
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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 ))
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))9 [7 l- p5 _& j
;;及时更新i对l的评价质量的评价0 i8 @8 s, U# F
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
0 N3 Q# n# l8 s0 K' Z) q6 Bset l (l + 1)7 D' f- S/ O9 U: P1 @( q
]
7 t2 c3 Q& H7 @9 t8 ]end
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5 l8 w# m' P/ D7 _8 f/ E+ c9 M' i8 jto update-credibility-list+ h! ]9 V# h! @! P& ^7 z6 o4 S+ O
let i 0* K l7 |. {; [; J& T% e5 n
while[i < people]* J5 G0 I- u* ]- R' o8 p
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let j 06 u3 ~' e# ] P I3 p& U
let note 0
1 e3 B) D: Q4 J$ X- olet k 0+ Y4 c9 g- g! c9 n6 Z) D' r! j' c" P `
;;计作出过评价的邻居节点的数目" R2 q! [$ p2 y6 P- c, D T
while[j < people]1 K- D/ p' k1 n6 [
[
2 `/ M5 }# i( l" R( Dif (item j( [credibility] of turtle (i + 1)) != -1)
7 t+ E* U( Y3 S;;判断是否给本turtle的评价质量做出过评价的节点$ c# N/ W$ Z. Y1 w, m9 Y
[set note (note + item j ([credibility]of turtle (i + 1)))3 O, s& @. q- C0 D7 k
;;*(exp (-(people - 2)))/(people - 2))]$ n" L+ K# i0 k, q5 ?# D! y4 T
set k (k + 1)
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set j (j + 1)
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set note (note *(exp (- (1 / k)))/ k)0 f/ E0 u; m1 n
set credibility-list (replace-item i credibility-list note)! p& I" k' X" l2 K8 v2 ~
set i (i + 1)4 P9 W s7 }. T" j/ |
]
/ K! y9 C9 T. T3 jend, R* V \9 A/ E' F: G) o' f
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to update-global-reputation-list+ {6 R. f% ]5 }; D( Q& g' Y4 o
let j 0' K$ {, ^' P s; P* F! @3 o- A
while[j < people]
B& f a# M2 {7 t5 f0 ][
" f) X" N3 t3 U# U9 alet new 0
; X" V# O- u6 v+ A* V1 |/ S0 j;;暂存新的一个全局声誉5 c+ s2 r* p; P9 t# _- Q
let i 0
0 ]% j0 N; d! X/ S4 Vlet sum-money 0
' l7 x" j: x$ Rlet credibility-money 0$ ~" d6 ?3 o4 P1 b8 {" R
while [i < people]
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% U9 t' d) ^* `( `; B& p/ F- Bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
" w- @5 d# I- D/ q# q6 F% `+ I) _1 Wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ t; l3 Q1 d7 T2 J3 r0 A
set i (i + 1)
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8 m @1 a0 R. o8 ?let k 0" ?- o4 U' i% C
let new1 0) M* K5 h4 ~( d) G( e6 I
while [k < people]
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, ?. m, k, I$ \ j* q4 B/ bset 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)
) m; G4 |( P! }; hset k (k + 1)1 y: {" v+ Y4 n2 {. K i c) v
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
7 ], B# n: j Rset global-reputation-list (replace-item j global-reputation-list new)6 w9 N$ m' G& |- Z: N+ ?: P! w
set j (j + 1)
# @" C w- \' c( n]
. G$ S! N9 }1 cend: C. A ?% t( W6 U
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to get-color
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set color blue
) S. e# |: t+ `8 W3 E2 iend
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to poll-class: l( I* s) B7 ?" v. [
end
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to setup-plot1
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set-current-plot "Trends-of-Local-reputation"4 v- z$ R0 |0 @* [: G% E, |
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set-plot-x-range 0 xmax
6 |8 `2 f9 i4 n/ E
7 z& w/ ^% o4 {- p, a) I6 Y3 ~set-plot-y-range 0.0 ymax
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to setup-plot24 \4 ]3 _. y( g8 g# Y" D4 e! b6 A
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set-current-plot "Trends-of-global-reputation"
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2 V0 q$ R$ U4 B$ `) G8 Hset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax
+ M+ J+ n8 B! T; Rend- f/ b- l/ S+ Z6 C
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to setup-plot3
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set-current-plot "Trends-of-credibility"5 t7 _, ]& K$ V9 r4 ]
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set-plot-x-range 0 xmax. @/ t6 C1 X- o& N
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set-plot-y-range 0.0 ymax
t( l7 G" O% H: L0 m. G& dend
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! v2 G( l4 p3 H3 n$ Vto do-plots. U+ s0 l1 t* F# e' Y( D
set-current-plot "Trends-of-Local-reputation"
2 t% A. h7 O# a3 vset-current-plot-pen "Honest service"1 q% C( X- h, z* n! j) V$ L
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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