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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
4 `% J: z4 T9 k4 eglobals[' e, J1 j% j! b( i) b( j( ^: C
xmax
/ J! G4 u4 S9 o( }& D5 a$ cymax& s& [5 K# D0 x# q/ \- F
global-reputation-list
" S$ E, Z4 h" ~8 w) E$ Y T
0 i5 ? N+ v/ s: q5 Y- f2 f1 s;;每一个turtle的全局声誉都存在此LIST中- n0 Z" ~0 v& _( w* U: g/ D. ~
credibility-list
( |! M% {- f, r* N;;每一个turtle的评价可信度! t# n# {8 I6 a7 g5 w* h
honest-service
' p: |$ h4 T. q1 r- u5 z nunhonest-service
' G3 M9 o6 i6 V) b0 Ioscillation
; g; l, n& J/ p, J4 urand-dynamic+ M6 j- u0 H/ i0 }
]5 Q/ D$ O0 D' r; R7 Z3 _0 Z
5 |, W7 Y: M, ^5 y! {* ]) }turtles-own[
, J/ w/ Z t4 N! y* B2 ctrade-record-all
# C0 T* ]" X- l2 k m;;a list of lists,由trade-record-one组成
% j! f! u7 Y. H$ U: Ptrade-record-one# M8 s, y0 W. \& y
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
3 o# h5 I, J) x" x. o. X* d" r8 I6 W8 R9 l. z$ t, ~) A3 T
;;[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]]
' F |1 |; l$ G" Htrade-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]8 e8 M8 g/ R, z/ k- f1 g
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
' y) E1 ^0 f+ s! N! e: V' R) kneighbor-total
$ W: L8 e9 j6 C;;记录该turtle的邻居节点的数目# t! K( B, a0 B
trade-time e" I' x' x/ f8 |
;;当前发生交易的turtle的交易时间
8 z2 j& z) [: p3 v% Zappraise-give
) B8 _- [/ b: j9 ]% z/ K! F7 i5 e" o C;;当前发生交易时给出的评价
3 c+ F' z7 ?- F" q8 U' Eappraise-receive
7 L" {9 W* o ]3 S* L;;当前发生交易时收到的评价( u, `+ |+ l1 x4 }0 K" w
appraise-time
! e( h) d; c+ k N+ a0 t;;当前发生交易时的评价时间3 g! H. I* o9 Q- Y
local-reputation-now;;此次交易后相对于对方turtle的局部声誉7 g8 e7 ]4 M {" ?2 _) C
trade-times-total( L3 V+ S) t& S# B/ x
;;与当前turtle的交易总次数
% }% u, ^$ ]6 p- W' s+ ftrade-money-total$ o% h9 Z$ V/ `/ ~# z0 V5 f
;;与当前turtle的交易总金额
/ b% {, Y6 X2 |local-reputation* r; f" @) [! p2 N" f
global-reputation T' E I' ]: r5 J; V% d! S: C
credibility4 q/ [% C! w, X' H( ]/ t
;;评价可信度,每次交易后都需要更新8 V3 A) Y5 y; b( d! y0 Q
credibility-all
( k/ m3 n" s4 E" Y0 B;;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
+ _! X$ {1 x0 @
+ h3 \1 |) l6 _;;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, p' F) ~5 \5 p/ O6 t
credibility-one" Z9 i5 m7 ~5 U8 K4 S8 R$ e
;;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
: q( O2 v2 s X4 d& l# H* \global-proportion0 v# o, N3 [( a x1 V
customer" w6 H1 N4 K* E" O& ?& }
customer-no1 ?, q) n" M( p; R
trust-ok% P9 { R6 s5 U8 s' C6 u- u
trade-record-one-len;;trade-record-one的长度
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8 T5 Y0 h+ ?- a1 @: c! o7 c# S' j5 o; B/ E2 O
;;setup procedure
) _0 i+ }5 Y: ]* _# c- B- Q; t/ D+ }; K m6 L! \" A( O, S) X
to setup
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' ^0 q% e# S2 ^/ p: {5 Y* {' aca
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initialize-settings& V& ~' Y' {+ v2 z' I7 ~) i
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crt people [setup-turtles]/ S, j3 g; o4 l
+ f: D+ F, j& V( a# f% @- z
reset-timer
9 U s! U: y/ e+ n4 c' e2 X) J# c2 {, ]
poll-class8 O! d6 u( q, o5 A+ R
) |6 V0 D( R+ m5 }setup-plots
3 \- M! J" O0 k9 y. ?' ]9 p% _9 V
8 ?. h- f5 t* odo-plots" z2 B6 w$ z% J/ ?0 g
end
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( }: a+ u* m, ~( [0 eto initialize-settings
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1 I+ N, s% b" hset global-reputation-list []. O/ o/ O% L/ [" Z g' y$ W' i; o7 |
8 i" Q. w5 Q7 b0 p; _
set credibility-list n-values people [0.5]1 Z8 ~- r# C$ B& R" v5 h7 V+ ?
" ~" \1 E/ G" X% i* F
set honest-service 0
: ]5 I. i3 k) w2 |8 e* b$ _$ \) d: P8 r7 G/ O' o8 G
set unhonest-service 01 K. a# E7 o* {5 Q
, x% O) R7 k5 q
set oscillation 04 b1 L f* O9 R/ _+ N
4 @( \. L9 O4 B/ ^1 ] X* Tset rand-dynamic 0
g# c5 w' S% u% _end0 [: n* @# f+ ~ p. t8 ]4 T
' _1 N9 C2 X6 A( X6 }1 |7 u M
to setup-turtles
; |1 o. i+ {% Z9 Y; _set shape "person"/ t0 K* W% D$ ~, u
setxy random-xcor random-ycor
8 ^/ y& s6 w& {, Uset trade-record-one []
# j q2 S9 | t% n
! ?8 x: [ z( @/ {, pset trade-record-all n-values people [(list (? + 1) 0 0)] 8 M, q# R! }& c% {9 |
d, Z' R/ q5 \# pset trade-record-current []
3 u: ]- u$ e! M+ \6 wset credibility-receive []/ i5 T) p4 l/ k4 P5 u4 z
set local-reputation 0.5
" ^7 x5 P' T( V" f; l% j9 c0 \set neighbor-total 0
# k% P9 F1 H9 `, C3 _: Eset trade-times-total 0# W& S% r* s0 J5 {( F. p0 w
set trade-money-total 0% z; x: D" P7 C. Y) d
set customer nobody* G7 P( a, p8 M5 ^* f- C
set credibility-all n-values people [creat-credibility]4 ~9 ]1 H3 ?2 ]8 e
set credibility n-values people [-1]& u) G& s& h; h. [9 g5 K$ a' @: t; f
get-color
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3 V# p* `/ M: w$ F0 P+ Pend. O% _* v T* G' l
+ f( [, |' p$ p
to-report creat-credibility7 T; ]6 F% q/ N
report n-values people [0.5]. W0 w! ]3 e& ^! j/ C% Z
end
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to setup-plots
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set xmax 30
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0 {% `% z3 S& {7 N8 _5 Bset ymax 1.0" |1 p, N$ u& Q4 x" q! x
, u2 c/ e1 N$ }7 {2 ]7 I9 k
clear-all-plots4 {0 o& d' r8 {" ~9 h7 T
, T" T7 A+ z6 N8 m" }- Gsetup-plot1+ K& z) I# ~8 d/ a3 z0 X& \2 k
9 b4 u8 _- L& ?# o3 z& K. y
setup-plot2! z9 e) e- S& {
( A+ J: E8 z, X9 ~5 c) }setup-plot33 Y" \1 O2 o6 P5 p5 z
end
# i6 G2 t: d6 y0 {, k- ~4 m2 D% l H
;;run time procedures
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, R7 |% E, J+ o# A+ p& Oto go
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% g q4 p5 o) v$ [4 _( v5 gask turtles [do-business]5 |2 H' W/ O& P* g8 X( U
end; p, D! o I U& ]- T
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to do-business
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9 u. L8 q. c3 h- p" }
3 j* i" }3 W8 e% x G& i! Urt random 360
- Z2 T( `8 H7 y( }- c2 N
* m* k8 t" s/ C7 ?) P/ w& hfd 19 B9 B( N% H4 Z# _4 x. [( V
5 b. x$ H$ ^$ S+ ?ifelse(other turtles-here != nobody)[
; b( x. Z/ q8 p# y
' ~! C! M' q- F5 z+ C3 mset customer one-of other turtles-here
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;; set [customer] of customer myself" U, j' k6 m& P+ \6 U
9 v3 c0 B( g& N R) c) K% H6 k8 sset [trade-record-one] of self item (([who] of customer) - 1)
$ H8 L: s, ?1 ~[trade-record-all]of self
. ^. m( D' E% O, t- q: c4 g;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
3 R0 m1 O+ r4 s0 y2 C" c# e% a" q% ~$ V5 T, A6 E$ J
set [trade-record-one] of customer item (([who] of self) - 1)
6 r ~/ J* X3 L9 v8 Q' r7 M! k[trade-record-all]of customer% ?& `1 h( `! N
# E0 k# K ?& J9 yset [trade-record-one-len] of self length [trade-record-one] of self
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7 i9 A- _& m$ F* r0 r8 {set trade-record-current( list (timer) (random money-upper-limit))
, W0 ]9 w$ o$ y, J2 G
6 y* v0 |3 o. d; Rask self [do-trust]
) q- S9 d+ q/ ~;;先求i对j的信任度/ n1 Y% p, l3 ~4 |- K5 q, W
& Y; @; [0 @ H5 Z( _3 n$ cif ([trust-ok] of self)
, l5 o! b' ?+ B! }2 R% u7 Y;;根据i对j的信任度来决定是否与j进行交易[3 M* D2 i5 j) z/ o$ {& y
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself6 b; u) G* C0 d, r9 t2 D- N
# J9 D+ l% _9 _- a[
, C. _) @1 w- E E
! g7 \% P9 x: t8 n6 Pdo-trade
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update-credibility-ijl
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update-credibility-list' L+ e1 _, c r6 _6 M$ A# W" [
5 \0 M& s( m4 @+ v3 H N1 z3 S
9 X) F/ ~: F) x/ m* Oupdate-global-reputation-list4 l) q) u3 M% p* L/ _ i
; c! K# @- v! f H1 k, h vpoll-class1 h7 _+ p! y7 Q2 v4 n, X
5 _, ~* O6 G5 p% u* kget-color
# u: |7 v' W) x: k- A+ K2 }9 v$ v7 I' d$ a4 ]7 K
]]- K1 F4 K# m% x0 @% `. {- r
& \& x1 M: ^( p3 t( k* z& H;;如果所得的信任度满足条件,则进行交易
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0 J, O0 W) x) v0 ~( \ n6 a: U4 H4 w j
rt random 360+ \9 {5 P; J% N+ w1 x% M
0 B4 H: }0 T3 c; O( _; j
fd 12 X8 V/ ?, [6 }1 g
n7 R9 h4 _5 [) I P6 w$ v N
]' U, i( m9 ^" t' y
' r4 v6 O; n7 A/ J" ~: kend+ e: ^ A) \5 N, B% e ~
' W( ?8 h* `) oto do-trust
4 n: B* U9 m9 Rset trust-ok False
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8 \# ~" H. b" A# D0 wlet max-trade-times 0# ^$ z0 }; ~+ H9 X: e1 B( \
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]. x7 [1 M* P3 J6 r# m) D8 z
let max-trade-money 0
1 [, G$ ?% f$ y6 f" vforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
9 P0 m& s4 B# H- A7 nlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))9 H2 a2 w/ ]5 T' [# o
: H- r' E) Z+ d* p' N+ a' `# Z2 ?% E% E J" t* H$ R
get-global-proportion% w% c' N% a3 G9 L3 W
let trust-value
, d& k. k7 R; 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)0 u% |. C9 n2 {9 W' v0 |* P
if(trust-value > trade-trust-value)1 ^* ?4 O! L3 B$ ?
[set trust-ok true]
- }% f5 E, M, |% R& O0 W1 W4 Jend7 m, k. g( o$ ^! o& M
+ H/ D, `7 B0 V4 d5 p- bto get-global-proportion" f. ~2 r0 ]# W' P
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)( ?1 |. ^2 G! e( T- O' m* k
[set global-proportion 0]" E `( p; A" K
[let i 0 d3 K% Q$ o5 _3 Z& `4 D5 p9 | Y3 \9 T% b
let sum-money 0
! o, Z" a! n% v% @ V1 {while[ i < people]8 p6 A' @6 Y" N" c3 C( S- S
[
" b1 w" W+ L, W) l) `if( length (item i, L( ~3 ?; ?: p+ V' Y; J1 r( k
[trade-record-all] of customer) > 3 )
+ x" E1 x& _5 f. i/ X( T( k[; \- P+ H' v2 r% J3 d9 T6 Z
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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]
7 G# x1 c4 d. s* w3 u, ?7 p5 u" Glet j 01 ^ Q! D( o2 R6 [4 L
let note 0% {" r3 K0 z+ m$ t
while[ j < people]
' k/ `5 l: n2 y6 W- l( {' ~3 [3 t[
5 B: e: r8 o/ n0 t0 c/ u Hif( length (item i' \$ d3 e5 d& ]8 J- r
[trade-record-all] of customer) > 3 )
4 J0 b* h2 Y8 a/ y6 v, g[8 a: t/ B2 d4 E* k0 [
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
5 e% S, T. ~& n" q c9 {[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 q2 g8 N6 F. B' ?& n
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
7 ^) v4 ^3 L% C9 t]1 `( s: B; Q& i4 Q# O0 k
]9 e9 [5 F' K5 b: H% r: ]# x% j
set global-proportion note* f! C+ C' @5 o: ?, m
]
% z$ I- i5 h7 xend
' w+ d, J( v6 f; t5 c) f0 X
3 Z4 ~% l9 r: }4 Jto do-trade
- O1 }4 k6 V$ f. i* N3 s;;这个过程实际上是给双方作出评价的过程! J$ k! \3 e# F4 o
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# F4 I4 u/ s) `4 g* hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价1 A8 }6 } [2 a
set trade-record-current lput(timer) trade-record-current
r! B% p) b: c9 V6 a# b3 s& C, ?;;评价时间! s. \2 s0 k5 L
ask myself [: r3 K. C, e' Z
update-local-reputation! z! H# A. u- }' K
set trade-record-current lput([local-reputation] of myself) trade-record-current, Z) D( x0 N3 o' F: E: s
]5 u# d% J( f6 q; K/ M0 V
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) g4 x, E7 T* m1 A' R4 {3 v
;;将此次交易的记录加入到trade-record-one中
7 I- _6 y0 A5 S4 B7 Rset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)* b6 U7 o% U) W6 h5 u
let note (item 2 trade-record-current )! R6 e0 v4 C* K3 Z
set trade-record-current
8 Z+ D5 J; g* K @# y(replace-item 2 trade-record-current (item 3 trade-record-current))
( g; }' u) s- W: pset trade-record-current* A2 H! {+ U; M
(replace-item 3 trade-record-current note)# F7 f6 k$ h) R5 i" Q3 N
! z1 j- U, s2 y! C! N! [
$ f4 ]: T5 e0 Cask customer [" L$ N" A* r) `2 I, ~' I2 x; Y' I
update-local-reputation9 H/ ~5 h$ ^1 }
set trade-record-current& ^" |# W' H: f+ F d
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
1 p+ h( [( B- J8 Q]! t" l; `2 l4 M! H8 e& n9 B
0 n1 c u) c% e' p+ H3 u
% B/ x5 P% P2 v5 Rset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- i- W( V; G, X8 r0 b
5 p$ F6 [4 ]9 e; y- w: M
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
$ x8 j) a- q5 Z: N% f+ x, {7 g: g;;将此次交易的记录加入到customer的trade-record-all中. h: c- ]) H1 }$ @' D% K
end
4 E, l: A/ X1 ^8 e* N9 P x( f) F5 f% P1 d
to update-local-reputation+ i9 R, L% r1 O0 |
set [trade-record-one-len] of myself length [trade-record-one] of myself
, V7 ]3 ^! c: e0 Y/ Q6 }1 ~6 L* v4 V# k7 c5 r( R0 s8 w# P* h
" U/ j. B; W6 I7 d: }/ ?;;if [trade-record-one-len] of myself > 3
( h* }- a1 A$ Y5 r0 F/ B& \2 Pupdate-neighbor-total
}( x2 h1 j4 \( [4 m;;更新邻居节点的数目,在此进行
+ r0 m+ H v' H- Elet i 3* w9 Z5 C. Q# N* E* _
let sum-time 0
+ z) ]3 ~5 Z" T1 ywhile[i < [trade-record-one-len] of myself]
' l% K* J7 h0 j+ ^[
: A7 \1 C; i; k Qset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ). c g. N+ R! y+ J3 ~
set i4 w7 s. p8 j! s# @, c# G
( i + 1)
$ v, ] f+ d2 {+ ? r3 x/ \" N]
* s; Y5 b d6 f/ u" d4 `8 W1 [let j 3, i L! x7 d, b
let sum-money 01 H+ r7 y& C: m, Y/ J( G
while[j < [trade-record-one-len] of myself]$ F; c" F) @, d, N( a3 E1 a4 `1 a
[
$ T z% ~( f& G5 d% X) Q. Vset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)( m- D- W6 ~! E3 _. F
set j1 D$ K- U8 Z/ p H9 N) K
( j + 1)
6 z' g {4 v+ h1 e, `& l6 e]/ ^+ A5 `+ B' q: q0 I
let k 3: l6 t1 y2 e) x& b) L0 q/ C
let power 0
Z+ E: \9 z/ G% x5 F! j7 jlet local 0
q9 L- U8 T8 mwhile [k <[trade-record-one-len] of myself]
% i. V, Z3 D' {8 M3 F( I2 t6 ^[
7 f' z M& w3 @2 d) xset 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) 3 o1 W# m! C/ o: f) p* b
set k (k + 1). |/ b0 `; R2 |5 B" B
]
* j5 S, N2 H9 uset [local-reputation] of myself (local)" s* L8 o4 d6 K1 V' [
end
- l! r$ s5 F9 m) C4 o
h' `5 U, y) C& }3 ~) E3 L8 Yto update-neighbor-total# N) c6 j& e4 T# _
1 l- N1 [( R& M+ |7 G0 H- ?
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]5 v" Q* K: p& ~" T% r
/ v" {2 c9 \- B) d+ B9 y0 ^1 U
$ K2 {4 w5 |! h# A, M; A4 ^' }( Wend
( n0 m4 O! D8 ^% L i9 c
3 D; t4 N% F1 K% A# hto update-credibility-ijl 6 I5 f- V, d8 ]7 k/ J! v
; J9 G3 g) Z) _: ^! D: C;;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。( c- P% ?0 Y/ u! S9 z
let l 0- `4 y+ }: t+ x0 q! _* z
while[ l < people ]
( K9 W0 C% o# 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6 w3 t5 j" t) T- ^8 a* n% W. t4 f. W# g
[
5 x) h6 g! A0 c$ w4 ]let trade-record-one-j-l-len length item l ([trade-record-all] of customer)4 c) j: d/ L+ f) I, [+ z
if (trade-record-one-j-l-len > 3)& u7 S* m! K+ Y6 B$ E7 g
[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
* B' m& ~ ^* n. Y9 O, [& J alet i 33 i, v9 R( ?9 X
let sum-time 0. w0 q/ W$ V; [1 |# o
while[i < trade-record-one-len]. R6 Z+ a. t4 W) Q% U7 |
[: l" a5 l! [/ T ~/ b
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 C- ]! V& } Z# w) X3 uset i
' x: }! n! D/ M. l4 w: K+ R; g( i + 1)
9 s7 W# y! Z5 \7 ~]/ e& H, R2 j+ W
let credibility-i-j-l 0, M {; ?7 \6 ^8 J+ q
;;i评价(j对jl的评价)
0 I' J* |! n$ D9 F' F. B0 O7 clet j 3- L) j* U) J0 T
let k 4
7 a% U* N+ V5 Q) Q9 g& awhile[j < trade-record-one-len]
\8 C" {2 w$ y; v9 @* `' Z6 { O[8 ~0 O& a+ s( H) a2 D
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& `% Z# i9 B% c- ]
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)
4 w8 C) A; V. R9 U: E& u, U7 X! wset j
5 _5 `- {0 D1 G- {& w( j + 1)
; k4 H5 Y' ?. ?2 H]4 d7 G( a( d5 ^+ a# N1 m6 a
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 ))
9 Q9 D4 h" s% U8 u, s
, f; X. d1 l; K6 M# ^
4 `. P. D0 i- r- R) flet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))6 G' Z# n8 M+ y; k# m% o
;;及时更新i对l的评价质量的评价+ S0 _$ ]- D# r/ ]. z$ }! c/ N; \
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ], x5 @0 ^5 j, W8 x0 [6 g
set l (l + 1)
4 {1 C9 h' a4 n- i' C/ G! ?$ ^; m]
, e- s7 u- p0 ^0 E6 C+ R& p R Aend
! g0 z6 T0 f, H; V I' k" A+ R3 U5 w& Q' }' [ K, ~* g% {
to update-credibility-list5 p3 ?% l3 L6 c% n' A2 I- G' V- y3 ~
let i 0! t- ]2 U4 L2 }+ x
while[i < people]
& ~7 c+ W# C) }0 r0 R7 @[
8 w3 `. B: m- \let j 0
/ w e# m0 @- t3 _3 N: \6 _( Vlet note 0
# G+ X* h( V5 l* Y! T8 O' Wlet k 0
$ p, c/ j( N' Y2 ?% k;;计作出过评价的邻居节点的数目4 q% N% E- h6 ]
while[j < people]
( q# i( A6 F' c. F% j7 Q[1 U9 t X. X" H9 x0 z" L5 u
if (item j( [credibility] of turtle (i + 1)) != -1)4 N4 Y2 X5 y9 f- G* S
;;判断是否给本turtle的评价质量做出过评价的节点
& k1 P0 N( d* u) A! Y C! j) e[set note (note + item j ([credibility]of turtle (i + 1)))7 r) | U6 p! W* r) V+ Y) U5 d) k
;;*(exp (-(people - 2)))/(people - 2))]
: y k8 h, n6 [2 H0 fset k (k + 1)' f7 E; g8 r: }9 _( B
]
+ D6 T* n3 p) Q) b0 ]+ j0 qset j (j + 1)) }& |5 J: x+ ?- P
]
6 r' c; b& e7 j1 zset note (note *(exp (- (1 / k)))/ k)
1 L: ~ M8 q7 `" Gset credibility-list (replace-item i credibility-list note)
& T4 S. W1 s5 R. Z$ rset i (i + 1)+ z9 g! l* {/ K' _2 K9 L
]
" Z5 |: t9 Q, _end
' e5 b' w5 n6 A; ]1 t
X) ~8 f8 y: a: L6 t& y3 Tto update-global-reputation-list
/ B c6 N+ t3 r* _6 P# klet j 00 ?' \" ?7 k \( q+ G: b
while[j < people]
d& L4 M1 ]2 m[; z, M6 J+ t" @1 m
let new 01 u( x: Q4 S7 ^9 @9 B& w" f( G3 u, s
;;暂存新的一个全局声誉6 i; F- J/ B! ^
let i 0
4 \8 z$ w3 D+ x8 X- P! r3 s- rlet sum-money 01 V C# s ~; j5 V9 _$ U
let credibility-money 0
% I8 @, p% @% Z* i/ v% z7 jwhile [i < people]: |! J! J Z0 U/ |3 M
[# ]# j2 o& m- @% _$ i
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) o" i1 }& A) x. Jset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
5 R- m0 {: i5 I# M9 d4 _5 p9 |set i (i + 1)
' V3 S {) O* o/ s: O; X" j( x/ E]9 q0 A4 `, F7 B1 ]6 Q) q
let k 06 d4 s; _$ F6 y- l
let new1 05 C, r' t$ ?1 |: j5 v
while [k < people]2 @2 ^3 V" @0 v
[
( @8 U2 H$ }* @0 Tset new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money)
, L8 Q5 D" @' P! t: rset k (k + 1)
/ V# ~" r9 k3 x' Y# R]2 H1 _; V. P2 P/ G8 F
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ( R" ?! f. w, K1 [/ C
set global-reputation-list (replace-item j global-reputation-list new)
8 }5 d: I: Z) A, @set j (j + 1)
6 J. n& I) {0 J$ |1 W2 w]8 [. b1 K( T9 R' D( r5 l% D
end
% M H3 d" x7 c# r- b
; Y7 R3 P( }/ i6 d4 ~. ?0 f" S) B1 D; r6 s+ _9 U+ e7 f
6 d0 `, \) C* ?0 D) {
to get-color- V5 @- Q! h) r) M8 D# p
& v {/ g, U! [9 Oset color blue V" y" P4 e. k( A' x
end
( c: Y3 _5 i4 ]6 {# A! H4 K0 H- x6 k
to poll-class; _' |( ^3 N+ D/ Z' B
end$ I0 n* Z$ H, s2 \+ C' d, D* e$ b
- I" P3 I4 @! g- c3 m
to setup-plot1! M1 \, s0 t' U" h9 q3 [
2 v D6 D. e) }% m0 D( s5 l
set-current-plot "Trends-of-Local-reputation"5 n/ P! L0 u; ]1 [5 k/ Z
$ z8 h6 `* l: \) W; ?4 Fset-plot-x-range 0 xmax
8 Y, m8 a: H6 c
0 _5 b8 ~$ {- S. V7 lset-plot-y-range 0.0 ymax+ K* W }9 u& h" x3 C
end
5 v" h9 R5 `2 Y; |& [4 C
( K9 X) _6 R6 L6 |2 Y) S) o$ J+ ~& \to setup-plot2
8 r" T5 f5 I; L0 e0 N# e5 }. x1 H( r9 ^+ g" C0 X3 o; F8 f
set-current-plot "Trends-of-global-reputation"
4 Q/ }; V6 d/ F
* H @0 m3 Z% H& f" G9 g' k9 Uset-plot-x-range 0 xmax- {; d6 {3 \" J9 u. s3 b
# s$ w! W. d0 t+ g4 |* j
set-plot-y-range 0.0 ymax
0 N( m+ b* N! ~" f/ dend ?" F; z5 s# D$ Z5 T! |# o- q v
* a4 s' }: u9 r. m( qto setup-plot3
9 h" f7 y6 |5 F+ ^! O* K
* b. h8 n: X# k* t! b" kset-current-plot "Trends-of-credibility": k9 t$ x8 f4 |8 ^/ a) [
: Z% I" I7 @8 M' g7 m2 Fset-plot-x-range 0 xmax
6 N& k6 c7 P5 H8 `5 K: D
$ A# M0 }" `* x' K# t2 Z/ aset-plot-y-range 0.0 ymax( `1 W; l* S) ?( A
end0 d* U% l3 t2 _2 Q) e' Z
- m3 m' p" V0 @* ]to do-plots
# V* T9 z, Z5 R( ?+ Vset-current-plot "Trends-of-Local-reputation"
9 q/ O6 J H( V9 n8 x B; n2 \0 S. Cset-current-plot-pen "Honest service"6 @0 M' A3 U2 b) _' v H
end9 W5 [# P0 {2 r, D8 b, v+ e$ ~
8 E" s8 a5 x- ~0 G5 Q" {
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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