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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; |" [1 z% x2 [1 I$ b* n3 gglobals[
" A1 ?. H9 K) bxmax4 s1 s; A" O. `. }
ymax
2 `) t1 h- Q" \( Mglobal-reputation-list$ z) G3 D) v& B |' b
# i# W. o4 G9 z) M3 I+ h;;每一个turtle的全局声誉都存在此LIST中
8 _1 k& d+ y* z/ I' lcredibility-list7 X4 N' \" Q; X3 {
;;每一个turtle的评价可信度8 Z. G/ z& N+ @
honest-service
$ S2 j3 W' P; u5 w5 A" Kunhonest-service
: E% J7 H1 r9 `0 [/ {oscillation
6 V# v! H# @4 }/ K; `4 X! Qrand-dynamic
) X; b. y4 S# c/ G]* _7 y- Y: s) y7 o8 `1 o
& S( V2 z' v( F, A0 N. x8 Uturtles-own[
. V; u- J# T$ g. P2 Qtrade-record-all
6 n1 O+ G* J5 X: ^8 I8 d( f;;a list of lists,由trade-record-one组成- e# q. V- o" J
trade-record-one
% T6 ^! i' Z" [) T;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
) w5 P7 c# ^9 m/ C z3 E2 { W1 K# ~2 o$ D$ B
;;[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]]$ i# d' A k5 I* 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]
$ P+ @' X4 M6 \# hcredibility-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list3 p# F! |0 E J8 Y" B6 }+ `5 M
neighbor-total
I- h. D4 t; b& |9 R' _" j% G9 y;;记录该turtle的邻居节点的数目, R' i: X0 ^, h. ^& [" ~9 C/ J W
trade-time( x2 O) x$ G! B& L; @) w
;;当前发生交易的turtle的交易时间- r0 }" }" N6 o, H; V
appraise-give
5 z) H! F1 k* p& o' T' N;;当前发生交易时给出的评价
) h+ a. L# A( B# I& U+ yappraise-receive
; c/ S& p( u7 \6 j;;当前发生交易时收到的评价1 ?/ K/ F/ b: [$ j
appraise-time
$ C5 U4 h% `8 x; S* ?;;当前发生交易时的评价时间0 ?" I' _2 g6 h6 b$ h" i/ q
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
: ]; x$ }4 Y' e f) Q, dtrade-times-total
$ F5 u+ V3 ^$ J0 m* B. X9 Y$ h;;与当前turtle的交易总次数
9 b1 W! U6 U' n! E) ktrade-money-total- I' V+ Q4 {+ o9 Q9 u1 }
;;与当前turtle的交易总金额
' N1 a7 _& ^8 j; E% [' W4 y& klocal-reputation
. f1 H5 @* @ V& cglobal-reputation
, L: Y; L: b' S5 {) kcredibility
7 m) s$ ~. m. i7 p# l3 h' b5 ~;;评价可信度,每次交易后都需要更新" ]# u4 s! f! y# b& L5 Y- Y
credibility-all
* o/ z& G+ K+ y* w) @;;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
$ S3 h" j! v" c9 A0 t$ M3 V7 W1 w0 C6 D% X6 M+ I2 p$ x0 x8 ^
;;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( ^0 I5 F, y5 L8 M4 I9 _. }
credibility-one
+ ~5 C: U& ~7 v;;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
# n; X; I$ p6 e* w/ Zglobal-proportion. B6 ^" }5 \: P; R' F8 O: c) E
customer) a' G1 B# X4 ]" L0 \2 D/ `+ D: v
customer-no
$ o7 _" _2 f2 y3 t+ y8 D, ^trust-ok
& y$ \4 H* F" `; Ttrade-record-one-len;;trade-record-one的长度
+ f% m' k4 ?7 q0 o M9 Z]
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;;setup procedure
( [" c, _2 f0 Z2 z9 v! g+ b1 i" w% i7 d1 G' _2 ]( {1 y
to setup
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2 R' S) C) a: a% `/ w5 w" S3 Nca
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" g1 B' _9 o+ ^& U, w) s" Ginitialize-settings
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crt people [setup-turtles]) l, v1 e1 R$ y% x6 G$ ?+ s
5 i& ] d" [; M) E. Q8 Ureset-timer! N9 ?3 A, [) ^! u$ B9 ^1 }9 ^/ h9 t
* V* b! S4 ~7 A0 z) U: jpoll-class. \+ L1 p& }) B$ }
4 A, V% Z/ H3 [setup-plots% C f' K6 ^- i3 O5 X: j& ^) M
5 w) G7 F3 f: b( j6 p" J/ |
do-plots7 }; N! B7 ^( v' w6 P2 @
end# Y2 B$ z" H( R
1 J; e J X# {# x/ U( ? uto initialize-settings$ Y( b' k: D# ~, M$ {
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set global-reputation-list []
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! i* I$ u: S3 d+ Uset credibility-list n-values people [0.5]
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set honest-service 06 y6 E( p4 _) E) G8 z
7 I" K+ I+ T. E7 l: p% d" I+ o; ?
set unhonest-service 0
# z/ u/ z% @7 r8 l# F8 s
" i9 y y+ r: J iset oscillation 0
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% V4 f$ n( @- l5 C/ [4 Bset rand-dynamic 0
3 q4 r, b4 x( Y. V" nend; i. r: W* n6 M# x7 k
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to setup-turtles
1 w1 v# h$ |0 O( E7 \set shape "person"0 ^- ]4 ]3 ^# }. v/ T
setxy random-xcor random-ycor9 o* Q/ l9 y& w5 o! F( k& ]
set trade-record-one []) ]* y/ j$ c3 v& h
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set trade-record-all n-values people [(list (? + 1) 0 0)] 3 O& Z2 v9 z7 g7 B. T+ o9 Q
" ?3 j0 \ E0 O S. Z$ v3 N3 }
set trade-record-current []
6 q+ V# o2 J- s( q: ]set credibility-receive []0 z' A, f* Q/ X/ k+ y$ _
set local-reputation 0.54 e+ L0 J- B( q% N' P$ }# y
set neighbor-total 0% t& F6 n. T( T% J: w a
set trade-times-total 0
; l$ f* V% C" }$ jset trade-money-total 0- Y, j" @3 `6 K, R9 x5 f
set customer nobody2 j1 D7 L" g$ A
set credibility-all n-values people [creat-credibility]9 R( W, _0 G! K( m; I4 m# H
set credibility n-values people [-1]
, `+ k5 D' U4 O) K0 x+ a* U6 nget-color& Z. m0 a# k+ \$ L) l8 N) l4 {+ e
+ Z6 w# ^4 T/ R: l5 Uend$ I2 I/ u5 b( t
& h5 x5 g3 @1 q' C! i4 {9 K
to-report creat-credibility! k3 p& Z- N- {/ L
report n-values people [0.5]6 c5 M. Z7 ?9 w- q- O2 Q
end$ c. T9 B. \! n2 K
$ P# ]; _/ _. P, @- i9 s* w" e' Yto setup-plots
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set xmax 30
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1 l: o2 u6 ^) c" A: d, n8 d# x% qset ymax 1.0
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clear-all-plots
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setup-plot1& L/ G, E+ q5 A: g8 s! b( A. ~
) _! c2 M( C. a) h5 Z Jsetup-plot2
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setup-plot3
. f5 |1 x% ?: V8 w' Yend
/ m: \- y/ b+ o# X, G# m) c. f" O' d. O. |1 z. B
;;run time procedures
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to go9 q8 R7 ?! N( N* V* O1 v5 s
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ask turtles [do-business]
- J$ c" q8 ^4 G6 b: zend
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to do-business
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* V# x4 U7 y8 V6 O( I1 Jrt random 3602 ?. m/ a$ Q6 S1 l
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fd 1 @, _- g d l& |- H
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ifelse(other turtles-here != nobody)[ Z+ U4 o! I* Q0 [* \; I% C
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set customer one-of other turtles-here
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, s0 _. a1 F- z* b* K;; set [customer] of customer myself1 i: `5 @) S9 _9 f( A. v
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set [trade-record-one] of self item (([who] of customer) - 1)1 ?& {- @4 o4 U' n* }6 K I
[trade-record-all]of self; C5 f# j; H* }! s
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self0 [+ l' u$ o0 T1 e/ g$ O+ H! l
5 U4 U4 P7 }6 `/ S: o) h/ X8 A. lset [trade-record-one] of customer item (([who] of self) - 1)
/ ]# f- U: P$ g: Q" \5 u; {[trade-record-all]of customer
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& Q: B! T. X( P+ m- {set [trade-record-one-len] of self length [trade-record-one] of self" S' R6 @! N, n2 A4 f' Y
* Y& d/ D9 i2 ?' v! ?" Q0 b. `3 aset trade-record-current( list (timer) (random money-upper-limit))
" F2 N$ @0 L! O8 w8 j5 E) M
. F; V! X3 `" n( B$ uask self [do-trust]
# [1 g0 }; u' x' q) J! F+ q; l;;先求i对j的信任度
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' {. V9 \5 m, R, l0 S# ^if ([trust-ok] of self)
! x1 Q$ j/ v6 v' q+ J2 M- J7 I# r, ~8 h;;根据i对j的信任度来决定是否与j进行交易[( f: c3 k$ w% x$ `7 C5 D
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[/ q1 B5 F% Y' j4 S) q
9 q# x. v5 f4 _+ y. T$ ddo-trade
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* H! d8 z3 n, t( I$ L5 ^update-credibility-ijl
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* k' t. |; Y, [# l- Hupdate-credibility-list
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! @! y7 o- j5 F* p; ^update-global-reputation-list( o9 [$ f, f- b6 M6 n- D3 S
) b# V- Z2 c. Wpoll-class
2 D6 r9 ~* h% y0 k- d9 [- L- w4 F- p/ S$ z- o' m
get-color" X) {1 z: G9 m, C
3 Y) u: U9 B2 h4 l" |; i% b
]]$ G9 |- X( A# V% r
; M* S8 W( X/ I8 [. Y3 a
;;如果所得的信任度满足条件,则进行交易2 C* u" F% H, A; @0 J _0 ~
3 |) n0 v m% b5 U
[
- w& i0 W, {/ K4 W
( @+ F! j i9 J0 M( {; rrt random 360
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?* W1 }* L5 afd 1
% f7 Q# J+ ?4 y0 a
. ^, S% Q2 S1 p$ Z* w& Q# p, b" y], [- n2 h0 |) H3 ?7 |/ ~& X
- w3 } u, r. d0 m f" _
end
! b/ V* n$ X/ n: l _
! B. r) f$ ]6 Y, L1 {to do-trust
; J5 M* p7 x K2 `: o$ cset trust-ok False
& {& z8 y+ W8 }
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let max-trade-times 0
, q" g) m2 K- t+ A5 F0 f; Lforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
0 b" N" t+ G4 Vlet max-trade-money 0
" J3 r5 R( `1 ]1 C+ [foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
# e. l/ g2 B: V! ^let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))" f: {( \( l2 J4 J: A U0 e- s
/ ?& P e" o2 ^' Z
4 d6 o& a. l8 d/ K8 Kget-global-proportion, H% b& s$ z" Q1 c3 {! t
let trust-value* j( P0 v" e N
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)$ {$ w7 i# _! R. ]4 w! N! p
if(trust-value > trade-trust-value), @9 b2 u# ^: K! k+ \+ w
[set trust-ok true]
+ C5 p- b, R2 Z4 Zend
, Y5 z8 t F, J' D9 K( ?4 J X; X: E- f: C0 j* r; U
to get-global-proportion! ]1 h, y" s K9 i( R
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
0 y' b ?% e6 K9 I, f$ B) L+ {[set global-proportion 0]- I {. r7 v* C. `3 R3 U: t S
[let i 0
/ j% H4 v5 M" {1 D$ T Qlet sum-money 0 ?$ f9 U* F2 O u* p+ H
while[ i < people]' j, Z0 U: R& a6 {' b
[
# v; ^. X) a+ t7 D, ?0 H) jif( length (item i- n5 X8 N( D9 ~& J4 R4 O
[trade-record-all] of customer) > 3 )9 [0 l1 r. e4 F: V3 o
[) R0 b! n9 E% f$ ?
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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6 D- H: w/ O2 X]0 j- p& J$ @; S1 @6 K
let j 0- K" R: U! Q0 k g
let note 0
1 Q; w6 t0 _( B* V7 _while[ j < people]& |: M6 v! {+ M
[* Z- L$ O+ u" P$ w
if( length (item i: }; p1 D2 a: B' `1 {) X
[trade-record-all] of customer) > 3 )
2 j6 o# R: a. U" C; B) ~[
$ g0 u/ n" }( y2 ~2 O* uifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
" n) [- {5 ^4 C/ |[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 p- D, r# Z, G) |6 d% U
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
! k2 s/ Z" b5 X6 A8 C+ v]
% C+ H3 ?7 Y1 f! k x- e' ^]
; A- o5 k- v/ g+ f& r- N7 ]: |0 iset global-proportion note/ x- f% A- C7 [3 g& c/ m; K
]4 k9 P! h \& h( r
end
# s. A0 @, `0 K1 B% }0 \+ A8 \
p) T4 s- W: g* T$ lto do-trade
' c1 y/ Q/ ^, t7 B;;这个过程实际上是给双方作出评价的过程
. N+ v6 B/ i$ t& Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价, g8 ?7 J! X6 N: i, K
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
- W/ \; H* d& L; S6 eset trade-record-current lput(timer) trade-record-current' U, I! N1 o- M0 |) I( s3 J: t
;;评价时间
/ X! [$ M" Y( U Nask myself [. @" @' Z" d, o# N
update-local-reputation
3 C- _6 e" T: ]$ J* S4 l$ Z# cset 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
& {; h j3 H8 `6 y3 S( _5 r. c) U;;将此次交易的记录加入到trade-record-one中
( S$ p, t) l9 b3 P" |2 Eset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). A% u8 M z6 i- E3 ?+ N
let note (item 2 trade-record-current )" m+ d; l( a: b1 O' q6 p
set trade-record-current" ~, [6 `' u0 }- R* ?2 A
(replace-item 2 trade-record-current (item 3 trade-record-current))) a1 f' l4 g' u
set trade-record-current- w5 Q6 a: Z% K! T8 ^* w% ^" c1 C
(replace-item 3 trade-record-current note)
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+ H8 K9 g5 Q, l' M W6 ^8 a) ~ t
ask customer [
4 D# N9 Z2 a [6 Kupdate-local-reputation
O% f1 N, v( M0 B: z* Z0 zset trade-record-current
1 q# Z. A1 F ^2 ^(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
( N( R" L8 r. W]
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5 _3 u- W8 J, k; i
% Q3 U! x( n3 x7 H3 H+ p% Tset [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))7 F# a6 Q Z/ u, @/ s
;;将此次交易的记录加入到customer的trade-record-all中- h3 S6 S/ v! Y6 X) q' U6 d" k& F
end
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to update-local-reputation+ j( j" d( Z& T6 B& V6 j
set [trade-record-one-len] of myself length [trade-record-one] of myself- a6 |4 K2 P6 R' Q2 o
1 K+ J/ {0 u" X
b* o$ J% h/ r$ q' y; K4 T
;;if [trade-record-one-len] of myself > 3
) D& G; Y6 m+ [9 P- E/ qupdate-neighbor-total& W6 j/ w2 i2 Y7 N; t) E
;;更新邻居节点的数目,在此进行* y7 L, S: l' z0 C
let i 3
1 Z8 s' j6 q& a+ b/ o5 r$ plet sum-time 01 t( o# k9 ?% Q% H& p( w/ d
while[i < [trade-record-one-len] of myself]( }2 s. Q4 p& A( w) J
[
8 J) h6 ?' t* D; v' ]% |5 y! qset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ). g/ V. Z, D9 q9 m' G
set i
$ `# B6 w& C+ ?$ z. i) s( i + 1)
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1 y+ ~2 d A; l2 Alet j 30 \/ z# h3 X, W8 y, `
let sum-money 0: x- [$ e* I' h
while[j < [trade-record-one-len] of myself]' r! q" u6 [4 t/ n1 Z
[% E) s9 R# Y! I, ?) B( `, o E
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)2 @6 m9 c7 ]* ^' A* } b+ O
set j
$ ]" F7 f# r4 C- h4 E% C( j + 1)
2 {* g) s6 z# i( Y& I]/ E# h/ E% b* s+ Z) j6 }
let k 3+ o0 d9 l" z% I/ i; R
let power 05 j' b/ }0 a z: h" H
let local 0! v3 M1 |2 P! h# M. S
while [k <[trade-record-one-len] of myself]+ i8 w; j/ U8 F1 |
[
! z) m' O# O4 a& G Yset 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) - T2 \: {" C& D6 d
set k (k + 1)
( ?$ K4 T1 T' }; a. a% p+ z: v! X]
7 J: c8 D3 r$ Q& T9 |set [local-reputation] of myself (local)
) k/ O1 P+ n" s3 h2 gend6 Z! ?8 b7 m7 |/ v) ]; ~6 ^2 \
1 G1 s& T, L8 W" v6 y. C- }- Yto update-neighbor-total
* {& b+ a J% R) i( M
5 F* I3 R. t* v0 p7 Mif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
) C' z1 U+ J7 R( i) l! Y) l# t- \: o) f: r, W; \) l$ k
to update-credibility-ijl
: A" F2 P7 y+ A, h' J- O8 j
! U1 A% Z) c8 E;;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。
8 \: `2 h( Q4 Q$ dlet l 0
6 H/ W3 R* j7 xwhile[ l < people ]
: ]; J( u4 ? g" }2 G8 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& n% _. K" ~6 N) z0 R
[
, ?0 h+ ` v5 M' |# ^ u3 `let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
# Z. ]* B c1 V% F6 Gif (trade-record-one-j-l-len > 3)
! \* y {4 o; D, {4 a+ Q! X+ c2 S6 l0 o[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/ g7 h3 `3 w" t% Z
let i 3
6 u3 _2 F. B$ W- glet sum-time 0- B1 D4 u( ]9 C" Q
while[i < trade-record-one-len]1 S( d/ j) u7 ?. T0 L/ l
[
" r2 h; k$ r) o' N0 N; r1 `! Tset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
! ?, S8 \; o! `/ {set i
R* j+ A( U4 {8 Y, Z7 I+ D% v' V( i + 1)
! Z3 }/ ?1 x+ D9 s]0 e) F% s; r# H5 X
let credibility-i-j-l 0
2 y6 P: l! D8 _. ]1 Y4 m6 q;;i评价(j对jl的评价)$ U& W( q) ?6 i5 y1 P( M4 z
let j 3
) }' H6 f3 ^7 t% xlet k 4, N) J/ p* W& n/ t+ {& W; u& w9 B
while[j < trade-record-one-len]! _* C5 M& M8 Z& _
[
6 q+ ~ I3 q1 _- awhile [((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
* c! l" R8 y* Q% @, w( p( y, Bset 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)$ L' k- i& n9 O# y
set j
6 p0 ]6 B& W9 O6 N( j + 1), K# m+ [+ C B+ j' j
]
: V S2 P3 O1 K- |& g+ r7 Bset [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 T W. s/ D! A5 ~( _
$ f+ D! c1 @0 m* K7 q! f2 I0 }! y* s9 n0 E& y" f
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))7 H7 j% F9 t0 @
;;及时更新i对l的评价质量的评价: d1 }; y8 ^1 d+ G
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 a% Q d! t( C2 G9 H3 C& M
set l (l + 1) x- A& p0 m+ x- t" M
]
z% F" F3 c$ N9 w- gend
: A2 ? o# b& p6 Z: I0 M! x* H% n0 @; [; L" j
to update-credibility-list, ]0 ^0 N2 G8 L' S5 o
let i 0
( F8 c! c0 s% w" Q! wwhile[i < people]3 X# n) B8 N5 @0 D6 V
[
0 |5 b3 `' [ q k* dlet j 01 m1 w% s0 x* y' m# V
let note 0: k0 i8 u u$ [0 C- d
let k 0, y, C% q* D; Q# E
;;计作出过评价的邻居节点的数目: h. N4 ?; B) I) o
while[j < people]. Y' |' B; p- W# B3 j2 o
[! q4 f% ~2 t+ l% _9 b, C
if (item j( [credibility] of turtle (i + 1)) != -1)+ s s! O) N n7 Y1 @* W
;;判断是否给本turtle的评价质量做出过评价的节点
3 C( B2 E! }. }[set note (note + item j ([credibility]of turtle (i + 1)))# N5 h0 x4 y3 ~3 x# z
;;*(exp (-(people - 2)))/(people - 2))]
( P0 V3 v4 b( X+ ^4 R+ tset k (k + 1)4 x$ V+ P. ~. p, i8 j: L" w
]* N. \' T G! z
set j (j + 1)
& }8 g* X4 }; @) S# B]. \+ i; P8 n: M. s0 q4 i5 k6 {' s1 s
set note (note *(exp (- (1 / k)))/ k)( q7 \ \' x; Y9 V5 A
set credibility-list (replace-item i credibility-list note)
! F& m9 V& n8 }8 q) I5 Pset i (i + 1)
; |: L* ^ K3 L]
" W8 S8 c0 l: r" A: T" F" nend
/ l7 B$ |/ |& ^* [
7 A' l ^9 ^7 J1 f! l" Tto update-global-reputation-list' V9 m0 j( b0 y: w/ \) D
let j 0& I1 o3 \ b$ `( @
while[j < people]
$ x T% T9 F5 w ?" M[/ {4 s9 s% B7 c- |9 t
let new 0
( U, w4 l+ \% y3 B, G5 e5 l;;暂存新的一个全局声誉7 f/ q7 G8 A& D/ G$ F; D% d+ E& m
let i 0
% R1 _0 a, [3 u6 ^$ P0 t' |. blet sum-money 00 I: }; {3 T/ {* Z7 h+ ]
let credibility-money 0
$ z* b4 b4 X% }- o* d% B1 lwhile [i < people], V2 C# B8 g+ C/ q9 |: a% e
[( ]( g' ]& i. a2 a, Z% E) k2 j
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
7 n+ I: S# F% F9 {set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))3 m' s1 o2 B' R: [; H, ?
set i (i + 1)2 D3 q4 M& n: W; L
]% L n0 q" ` u+ N0 l
let k 0 N' k* S# p' p; W @! `+ U0 w5 t
let new1 0# ?0 U- S/ f" s8 W5 M
while [k < people]3 M$ B+ L! W( t$ E, X0 T+ t
[$ l m# O& L. H! T7 M H. X% S H
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)+ x2 d- q* G7 G6 u$ Q# A
set k (k + 1)5 Q2 X! F, R0 ~5 ^1 i3 N
]' p2 Z5 y6 g: t/ O) ]% z- y d
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) + [3 `3 l$ d, I+ @. p9 G- S1 z
set global-reputation-list (replace-item j global-reputation-list new)$ \+ |4 C) h' i# I8 T$ }
set j (j + 1)
" ^1 [: s6 y% z. Y/ m! W]% { X8 [* Y6 |
end( Z) X9 t7 B' @/ O/ f* l
! g; o& z+ J& I3 F* k
, s9 j% B/ z* h! z$ |5 X9 A3 S
to get-color& w; U+ K8 b" D
+ L" g& u0 D, U. Q6 r* Zset color blue5 l; i+ A$ X5 q2 }
end
. f9 F1 p: {& ?" s0 n, v$ f, R% F% V: L) @5 I2 L
to poll-class
8 l; \" ]( v* o0 U$ k; R! B7 bend9 m$ M+ Q# k& L: @
, b Z! O$ b2 |4 w
to setup-plot14 |6 ?5 P$ p3 P' _- |
7 t9 A, s6 F6 a, P
set-current-plot "Trends-of-Local-reputation"; I5 e/ i% P. k0 _: u
% F' Z- _3 v# C$ `) Dset-plot-x-range 0 xmax2 f0 a% p- ^- h: u. b% v+ }" v! u/ p
4 _, H" n! ~$ |set-plot-y-range 0.0 ymax
* ~% H9 W) c3 `- Rend; C( y- A2 A1 s
$ }0 s; v# B% C2 z8 S/ Vto setup-plot2! `% i [! E$ ?
* W; z: v- F9 v" ]( Tset-current-plot "Trends-of-global-reputation"2 ]; c7 f: W; z7 w, h
8 Q5 G9 j" Z# U$ `
set-plot-x-range 0 xmax+ B( I, V0 |4 W% ?2 w
- z' o; m+ v; @" @% B( y# h9 U: `
set-plot-y-range 0.0 ymax
# V6 I5 d, D1 U' D8 Uend
2 U* N. W$ }3 D5 ]% p( e( O" T, v. _ \% h4 k4 a0 ~- j! f7 A# Z
to setup-plot3; M0 y% b3 y- N1 ?( N7 I
; b9 I" {6 e, {1 U* Rset-current-plot "Trends-of-credibility"
9 B# \( H8 n2 g- h+ ^; H5 O0 m& h" E9 S# N* O7 N! @
set-plot-x-range 0 xmax8 @+ B" A$ p8 E# I; l
. t0 w0 _4 Q" K. j" g' q/ G
set-plot-y-range 0.0 ymax* D6 Y) v9 v/ J
end
1 d' _' x* S. }# _0 N$ n. F. Y3 r0 N9 T6 q; R2 _) b
to do-plots
* | r3 |% l* e' ~: k: B' tset-current-plot "Trends-of-Local-reputation"& D6 g7 V% t3 A+ [ n
set-current-plot-pen "Honest service"3 s) z! L/ N/ g. P6 ?* m0 e
end- P1 A+ r% d' V+ b/ U
3 v9 V+ a1 Z" G% M9 }[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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