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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2 z+ ^6 t6 W* d+ K+ v
globals[/ e- T, [; ]- U- \( j
xmax, }4 t4 D& h! @4 |" C
ymax
5 E c# a* e9 |. Y& T4 Fglobal-reputation-list; G* p3 z5 _8 x) a8 k
9 S. Z- m/ Z" \4 h9 L1 M0 H;;每一个turtle的全局声誉都存在此LIST中
# F/ X, }; n K- Y) ]7 @1 Scredibility-list$ \* o4 ]' H; l% ? g& C
;;每一个turtle的评价可信度
' b; U8 c9 e+ ]honest-service; h' P# A; P6 Q- N
unhonest-service: A) C. y6 d" f& _
oscillation
3 X y, u( Z8 l/ n' irand-dynamic
3 X- E {, |: Y/ E]" Z; M8 \8 ^2 M& q; c, K+ i+ Q
. \2 O; O1 n1 W6 B0 ^
turtles-own[
) S/ A" f. Y% u4 P) r: {trade-record-all
+ l; ~/ e9 F+ q;;a list of lists,由trade-record-one组成( x N/ j) N9 h! f
trade-record-one
4 u0 Q' L: b0 ?;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
' B, w; Q3 y% T+ D9 k7 z4 i, _3 n+ \. 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]]
$ v8 g7 W2 }: E, {9 `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]5 P0 K5 G M- Z9 f5 E8 x- ~ q. W
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list8 I1 g. |4 @! h% \, }, m; Y
neighbor-total+ @- A& n0 a' D: h e4 m
;;记录该turtle的邻居节点的数目
1 P- [5 i* h+ O" R- @. X% ktrade-time
$ I. |) O, ]3 m3 h$ P7 s;;当前发生交易的turtle的交易时间( }7 L0 V; J( ?" {% C+ E: J
appraise-give
$ s5 l) }* n% x. o;;当前发生交易时给出的评价
3 N3 D& j7 ~. happraise-receive
. X3 m9 `& T. n4 r; Y;;当前发生交易时收到的评价
$ _! f7 }' t8 X& L# Dappraise-time. C6 L6 X5 P9 @
;;当前发生交易时的评价时间
! H8 ?; R6 I$ N; m" W& o* w! dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
' b- B0 G! p- n. a0 B$ v! j2 ^4 Q: {7 ~( ytrade-times-total( f4 Q7 J& h3 z& e4 J r6 X
;;与当前turtle的交易总次数
# d6 v# P- o/ J* A7 `trade-money-total
" `, I9 _) p* T: n; j;;与当前turtle的交易总金额+ d9 _* t$ y( J1 Y
local-reputation$ E' f( j: a" O8 W
global-reputation. P' N, G# N6 f; E w1 m
credibility
; L) S) L2 @+ V/ b+ V4 t;;评价可信度,每次交易后都需要更新
& C2 K0 Y$ u# b! H1 t. rcredibility-all* O& Z x+ l% Y: s: ?
;;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
( i1 q' C# I: l$ k: w, ?
|$ i) b8 U+ y, ]' o;;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0.56 y" C6 g$ a0 ]/ k# S3 M4 x
credibility-one0 ?2 r$ O, ]- d; h- O" z
;;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
4 v& j- ~% e# _* x9 U( J4 l+ z' L# Iglobal-proportion
& \9 \8 }5 m. z# Rcustomer2 r1 ]4 X5 X% \/ x. o6 B: M
customer-no
, w6 D8 |! q) R0 `3 o* E3 F, Y, t& Ntrust-ok
+ Z: h+ {8 l" h% E% Rtrade-record-one-len;;trade-record-one的长度9 _& z& D, V) n2 S
]6 ?2 F! e/ ?+ K% \" Z
5 H" ^1 ] z$ ?
;;setup procedure
2 ^3 a/ x$ `* t; a* M/ F6 c% E$ S/ C" N, d N) ]# z
to setup
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* W' U1 x9 _2 q! kca- Q6 Q9 w/ l/ a9 o0 u; c
7 |- B' {3 X8 P; Cinitialize-settings4 o9 _8 d; r) R- ]( i$ H( Q
5 E1 u2 I8 U& r* X# Q$ S D( Jcrt people [setup-turtles]
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reset-timer
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+ ~+ c' b/ k3 z1 z1 U4 Y' ~poll-class- O* T% K% C. E! r' y
[1 f( F" I* `+ usetup-plots
, f9 ~* `8 D! L6 w/ O# z; j4 H- ^
do-plots* |6 l* ^6 F! U
end
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4 I5 s4 K& j2 C- @to initialize-settings( O3 K. s. a0 l8 s# }6 \) y
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set global-reputation-list []/ l5 F: {4 ~- V6 V4 Q4 j
0 O$ v g2 K) J7 Y# }+ o
set credibility-list n-values people [0.5]& n" E/ [% k$ l% v
+ q- N' h1 K3 Y7 ]. V$ X
set honest-service 0- I+ a% O6 o3 t- X
# n- |4 f* {6 y2 S
set unhonest-service 02 G) j3 X0 h6 H; [
6 L0 e1 t6 K3 d! c) cset oscillation 03 T( H1 F- C( |' D
5 A3 u3 B% _4 ~: Hset rand-dynamic 0; j' ^2 S% d' t ]
end2 F- P1 z* v( w& z( n3 M, d* I
, `3 z! y2 X9 O, @0 \to setup-turtles
6 p2 m' x5 e4 k2 oset shape "person"6 i+ L0 ^, ]) C2 {6 S
setxy random-xcor random-ycor
+ u/ [' I( i/ D: ?& x eset trade-record-one []" y) e) t3 P( Q- H3 t F- D2 E
% {0 \9 e' v- ^: k* hset trade-record-all n-values people [(list (? + 1) 0 0)]
, Y- k' v) B( p- o6 ?8 U' Z
. e) _# ]- R% E9 m6 Qset trade-record-current []1 X& f; w' p9 [7 r0 P. a$ y) v8 x$ V
set credibility-receive []" V$ F/ Z9 ^% R' K+ E3 l$ Z
set local-reputation 0.5
1 `$ I4 h" s8 cset neighbor-total 0" l' D/ G+ o1 V$ q Y$ b
set trade-times-total 0; b! v2 x: c5 T
set trade-money-total 09 E& D c2 T9 s0 @ \5 M
set customer nobody
9 z8 [) E8 T3 X- Bset credibility-all n-values people [creat-credibility], q7 F# ?5 [" z5 b- d0 n
set credibility n-values people [-1]) ^4 Q6 _+ _, I, N
get-color# A5 F; z. L; G8 g/ ?) l
7 q( P0 j. B0 I- |8 n2 W: y* mend" d* h8 R" f4 ~+ h4 g: C7 M9 _- D/ A
" e( I! ?8 ?0 E' Y
to-report creat-credibility5 F. z( A) ]3 r X3 m: R
report n-values people [0.5]/ R, X3 P* k# x& A
end
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to setup-plots
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set xmax 30+ c8 ?1 R% ^: L) ?+ O
5 m' f; g" H; k* e1 c9 L: m
set ymax 1.0* S% E* @# s8 @% q2 `8 \: s4 {
. l" W* h! E( R
clear-all-plots1 B3 q* A/ E' l% z
$ |2 V7 G" X4 G! Q0 {( Zsetup-plot1
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o; A a6 [( G8 z8 ]setup-plot23 H: k( l3 T$ L! O# V
. f& I9 W2 Z/ \, S7 [- J) Nsetup-plot3
( \3 J5 d2 J8 P6 D! M; a4 Rend
& a9 y- m# {7 w0 ]! A: G
% e& M& ~& q% w! V;;run time procedures9 M: v0 ?% E6 L# M2 W( W
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to go: h" K7 ]6 @9 x
% T7 l% E: y! ]0 D+ `) a2 v6 [& Z7 S% fask turtles [do-business]8 ~2 e" P1 `$ n8 x i
end
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to do-business
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1 G" c- ~) G) ^7 _( V2 W% d4 A; D E! V/ n- H& O+ t4 L
rt random 360
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fd 1 r8 z. w4 P. V( c+ G; F5 r" R j
5 Z F, h, s- I5 i, Fifelse(other turtles-here != nobody)[3 |9 p$ x* B! k; O7 O3 e+ E
; J& j- J& L0 V" b, Gset customer one-of other turtles-here
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% K. C9 y& L& ~: B;; set [customer] of customer myself
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$ S8 C Q( T, c7 M( d, j$ {set [trade-record-one] of self item (([who] of customer) - 1)
2 s1 r$ z R) h0 M[trade-record-all]of self
' i$ z5 O7 E( q( q$ @;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
3 b$ w0 M4 s2 l# i' K# K' t- c I5 H" G( t
set [trade-record-one] of customer item (([who] of self) - 1)
8 C0 O7 D8 f1 @7 u7 g7 e v, M[trade-record-all]of customer" w* G; E4 M7 {( |+ x* x7 g7 u4 g
, n) Z+ V0 S; g& V8 i' i/ f% Fset [trade-record-one-len] of self length [trade-record-one] of self
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* \! d8 y0 }& r' ~0 Z" @' F$ Rset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]1 _% n3 n9 b: |- k5 H" z
;;先求i对j的信任度
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if ([trust-ok] of self)
3 O6 Z, u0 B, ?0 A1 i# x4 @0 I;;根据i对j的信任度来决定是否与j进行交易[
7 h. b( f* i* \7 E# D7 J: q+ ?" K1 u7 }ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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9 Q; \4 T( {# b# _[7 ^9 I' i" W# d4 E4 K
1 A/ E. L4 f( _8 ^
do-trade
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3 g- c; f1 X- hupdate-credibility-ijl) o9 C( S. ~' T, s6 L) n9 L( I
3 D7 W' ^; m" F; C4 Iupdate-credibility-list' `' G. i8 E" E# ^7 X) [
2 ~% O; c9 x* ^: @
. t) W5 ]$ {) Y; W. Y- b) fupdate-global-reputation-list" R" i; j2 f) r3 J6 s I) B
- C2 W1 ?1 R3 r1 F6 w; vpoll-class2 l3 ?2 P. z& [, ~' a( B6 K% S; _6 `
0 G9 Z1 ]3 q6 }6 ~! G+ X( D( bget-color
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6 L. m0 a3 n3 L5 E' F]]. \- _! I8 X2 q) R3 R
& d0 B, P4 N3 V4 C' o! f! ]0 e) Q;;如果所得的信任度满足条件,则进行交易) Z$ U9 L1 G% F; b6 l! \
3 {1 p- K |/ ?8 Q1 f1 c' J[! f7 c& \& Z" j& T) y' `6 {0 j
1 y! I. _5 M6 b7 O* Zrt random 360
* t& r/ [1 c [7 i+ f8 o( }* Z) }) f) A* ~! d8 Y
fd 1
' [' r1 b2 X8 {: z# B0 }1 U3 Z' u) d: m7 O
]
$ A% ~. b2 I" U* u0 w
5 d3 ?" Y) B* X5 |9 Mend
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( }5 q$ M; X }% T4 w. ]to do-trust
$ B+ v& x! C: p2 d$ e& }5 M( qset trust-ok False
1 x6 X$ p/ M# W$ S) ~' F9 D' W
& C: a: ~0 a2 Z" B$ Y2 \$ W" M- B9 A P) e) R! y$ u0 g
let max-trade-times 04 ]8 |- l% h4 |9 ^! c- i) S4 c
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
. E" }6 f ]6 G0 g* D" [let max-trade-money 0* S4 C/ j \0 P$ X' E
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 S( n7 h3 z+ c4 }0 {let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
- d8 R0 d1 v# E W# o) l$ Q) V4 }( a. ]$ i* P
[% A4 Z7 ^+ u2 z# n% ]
get-global-proportion
9 y" H2 G/ l' X9 E/ z: D" m8 W; Olet trust-value
% k+ K6 W' Y2 y4 Alocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
& \ s, s9 i0 H, Aif(trust-value > trade-trust-value)
5 C9 i! j; x) `! [6 D* ^) [0 D[set trust-ok true]8 t4 b1 Q( \1 K1 D y
end( G3 |2 L- B# U% B* _
& @$ ]5 w) l9 ^6 l, X$ B: Sto get-global-proportion+ {' i- E$ r: U$ M1 D
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)! d* Q0 Q" ]) G8 J2 N
[set global-proportion 0]
$ k8 b1 @) c2 m7 K4 F H[let i 0( t" e& ^1 s6 X$ {6 o( q
let sum-money 0
' y9 m# S' z5 d8 \2 H3 @2 kwhile[ i < people]' f& t* W6 b _4 |6 l7 u9 |- ~3 }: \
[3 s0 l5 }! C. w) ?. ] `1 y" |
if( length (item i( E) N# P' J) [5 g$ U1 K; ]- }
[trade-record-all] of customer) > 3 )
& `# I* ^ ^- L9 y[) p* G! j4 w, Z3 Y6 u
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 F% t; w7 V T* T
]
$ m; e9 L) L- T+ P4 T! I" a0 h]9 r' C4 ?) |0 a3 O' l$ ~
let j 0- B- F! v) o0 @1 C0 @$ t
let note 0: _% h) g1 X) X8 z7 b/ Y
while[ j < people]
) n" w& d J" v) Z# F* y[4 }/ Z* p: k8 F* K+ N9 \
if( length (item i8 W1 T+ D# @' |; {6 w% G
[trade-record-all] of customer) > 3 )
( q) a1 \7 m0 J' T, o! g[1 x5 Y8 w8 @' O: m b4 g* Q& k
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)% p; T7 i: ^. W3 P8 c) g
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' G' O' a# g2 C3 @. Q0 I0 ^[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
) v! x& W) i6 t5 x9 ?: e]
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set global-proportion note: M4 z! B7 V6 H5 }
]
. ]( R" W/ J; @. a8 T+ Qend3 w6 @! l: e! F4 i5 _
+ T1 E4 i9 E2 ^8 e/ O9 S% ^to do-trade
) r# z6 d, a) _* w2 S2 [;;这个过程实际上是给双方作出评价的过程2 e: S$ s( V$ Y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
. s* i% r P8 n. h' bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价' { D$ Y# [0 _9 M/ M
set trade-record-current lput(timer) trade-record-current
+ V* G$ U( y( k) B7 t' P. l;;评价时间" E3 \% l7 B8 L$ q( t1 b7 q5 `2 F
ask myself [
! R4 w+ V. ~% f6 K' }0 Eupdate-local-reputation
1 h; m J9 z) Z1 J n" U2 d0 Oset trade-record-current lput([local-reputation] of myself) trade-record-current: a9 T5 X* O2 t! L6 k0 K v1 ~
]
. G; m3 l0 t% | W# @set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself+ U) F' N1 R( Z. o* \0 w# d
;;将此次交易的记录加入到trade-record-one中
0 v$ h: h) j1 C6 }set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
" ~9 G7 _# E5 y2 T, Qlet note (item 2 trade-record-current )
. ?, J/ T/ t% S& j/ nset trade-record-current% L1 E: J! I; ]: |
(replace-item 2 trade-record-current (item 3 trade-record-current))
' w/ X% i5 L a! h5 U! [! [# vset trade-record-current5 d o" T. m% d& p) d3 \; K6 `
(replace-item 3 trade-record-current note)
6 }; s% ^5 D; Q9 P" ]/ E9 E% N) E( g* `
$ N. |( ]$ w+ S
ask customer [
# I/ ?; W/ S+ U- k1 v# mupdate-local-reputation `4 I5 c' ?: ?
set trade-record-current
$ g9 q8 ?1 @9 L(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) # i" w$ p5 M, N% ^" K
]
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer! b5 d+ G$ i) s7 P9 R* O: U
" O) q! O( _) v' l/ w2 ?9 u6 |1 v2 `; Gset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
; d- x$ V7 r: @" W;;将此次交易的记录加入到customer的trade-record-all中
; C- G; Z6 m3 S: P* H: Z |- w: c8 mend
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to update-local-reputation
' u& H# Q( E$ }/ e; qset [trade-record-one-len] of myself length [trade-record-one] of myself8 O9 v8 Z S2 q7 e
! h1 Z0 w6 m0 a+ y( S" {- H; x
& Q( e3 m" d) D% w
;;if [trade-record-one-len] of myself > 3
: h2 c; T Z% I" c, Y8 p: R. Aupdate-neighbor-total! l9 O. N/ ? C/ n" [( A4 S+ O2 }
;;更新邻居节点的数目,在此进行
' P1 p8 }1 e# L' Z& I0 nlet i 3, B) f/ j% m1 m7 Y
let sum-time 0, `3 M7 v; ?1 d/ X( _, x
while[i < [trade-record-one-len] of myself]
+ }' c- c1 [ \# t! q8 v[
0 E( s, z( c! ?: e9 Wset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )/ f/ T8 Y2 F \4 ]
set i2 m/ U+ R. |0 ^* m' V. ]
( i + 1)
9 X" }' J* ]5 L+ D3 N]! |- J$ o& k" S* Q" @
let j 3
, |1 }, D3 S* Y# L8 L8 Ylet sum-money 0
! x8 R* A, n' z$ I; J# cwhile[j < [trade-record-one-len] of myself]) R8 M/ U- ?( ^
[
1 k8 d, Z' {3 Pset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time) ?* l# `0 ^/ s0 I& S- W. v( K! s
set j8 T: i ~' I8 f- K. o6 Z
( j + 1)
$ Y/ Y' C5 @0 E h. y8 p]
! g$ W q, Q( r$ i( f! T) alet k 3
/ h1 q8 t' `2 m: Q6 Vlet power 0
& f1 d- c/ u6 ^* b2 G3 [7 nlet local 03 |7 i$ f W. S4 ~* d& c& F. y
while [k <[trade-record-one-len] of myself]
+ ~' w! g# s, f1 m( ~/ O3 J4 J[% k4 L8 Y. E- o' E
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) / c. G* V8 [5 B
set k (k + 1)
4 X3 o- h @* m& A]
( s! m2 `* ^% B7 h: K5 o, d5 y2 xset [local-reputation] of myself (local)
2 W' ?# l) `8 I6 q+ W/ i, Qend$ G( T% P9 q+ v: ]
; [8 Y6 C% Q; Q8 O; b* v5 `
to update-neighbor-total
5 R( _3 _9 v3 R' A
8 G# {" o0 ]0 H) |# H! Pif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
4 f- q% q" R+ G2 a- _ b2 V8 O# c: @: {& z8 E; s! J
/ P3 Z& Z/ C+ e5 f# Mend# ^6 B' L# z S* R
6 l% U$ t! F0 o; r p. rto update-credibility-ijl 0 L5 j& `; g2 \: l: V
6 q5 e' F: f/ I6 N, A;;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。
5 u$ ]: H0 E/ |4 t! F7 \let l 0
7 a3 Z9 j! J0 F# T$ x: Y' bwhile[ l < people ]; G. ?% ~$ ^# s6 V5 o
;;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
$ ^( ?8 r4 B L, W& m[
- k, |8 P. q$ y- `7 ?& i. Nlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
# ^: T' a' \" a5 D# Oif (trade-record-one-j-l-len > 3)7 d! L4 u+ N& c
[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+ d2 `) O% q7 F9 T
let i 3
. s$ I. x& K- _5 d8 mlet sum-time 0# V$ }( N) F3 {- i5 ]
while[i < trade-record-one-len]
6 k) R' H( |$ N7 L[( p( @% _+ N: C$ {( }8 D7 W. H; U1 R
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
( T/ P$ h: b; W2 hset i' _/ k$ P% @4 }! b' |# u% ]2 C: ~
( i + 1)
: q( n" h R! W]
! i& Y. w0 X2 zlet credibility-i-j-l 0
) l9 S0 h0 F( f8 `; _ \7 R7 G% K;;i评价(j对jl的评价)
1 g ?. P& z7 D5 _! I1 alet j 3. ^, e! r0 a" q6 {2 s- H1 f
let k 4. L8 T+ N! M# q, X$ f; S
while[j < trade-record-one-len]
/ o2 J/ D* x. h4 n[% j7 V) k; s/ X2 k& 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" U) g6 ~1 I/ x- u, H. @; ^
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)
2 l7 B7 H: l4 Zset j
7 X' p5 ~% k( ?% t, m1 X( ^" S1 E. s( j + 1)- u+ I) K6 y, T# c* H
]4 [ v0 z5 X; v4 g& _
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 ))
: K7 L% f% H( B) @" G
1 i" Z' j8 N: g! `1 d* d, j$ y6 a& m! p5 g
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))5 B9 \9 r7 O& ?$ E# q, W e& { F
;;及时更新i对l的评价质量的评价4 c) Z; b% K1 m* p
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]+ {) Q2 s5 z( v$ L; G# U' T
set l (l + 1)
/ v; `! p& V, u1 B! _9 Y]
# j d! B8 t5 [* H' Nend5 \, }/ M# C. I
& X% v% v+ @9 F; j" T8 A
to update-credibility-list3 F+ g _9 [6 ]9 m2 i8 a7 Y
let i 0
9 N. X+ K4 c( V9 Hwhile[i < people]. |; m" Y$ R$ P( E$ ?
[
1 g+ M- r6 y- R, x6 hlet j 0
3 A* t8 n7 ?+ Y) n0 Elet note 0
+ V4 ^& V5 j- t/ h' xlet k 0
# b7 u+ o3 U% U* z P- t8 t4 V;;计作出过评价的邻居节点的数目2 P- v% k6 {& }3 E# @ N7 x/ q
while[j < people]- Y' S8 E( |6 V" [
[) d8 d% W8 g8 r( F- Y; T0 Y
if (item j( [credibility] of turtle (i + 1)) != -1)# n- C0 @; H% ~( l# A1 g, K
;;判断是否给本turtle的评价质量做出过评价的节点
% E0 K. d/ G9 b1 v& V[set note (note + item j ([credibility]of turtle (i + 1))) `3 P. X# W5 |3 t
;;*(exp (-(people - 2)))/(people - 2))]
2 ~, D3 ?& N- ~9 `2 Mset k (k + 1)
8 Q" O L" p9 d2 _4 }$ z]# E& Q {; j1 b7 T' S
set j (j + 1)( F9 b2 ^# y/ R. ?
]
8 {6 B+ o6 x6 l+ g0 `- p- j! w' Yset note (note *(exp (- (1 / k)))/ k)
3 ]6 R" I2 y- T$ M( W1 V$ Gset credibility-list (replace-item i credibility-list note). Q/ r. _, e' ]. k8 A% @; i
set i (i + 1)
( ?, Q; a6 v- Q$ E6 r1 C1 p]
$ K+ b; d! u$ ^+ I4 {9 H+ z2 y Gend' n. h$ k* d5 Y a' U% q# K
9 b6 v9 f/ Y. f v! Cto update-global-reputation-list/ P4 {7 p+ a; a: T* h1 T
let j 0
; M4 P# x( z, o8 n! g% p0 m! Rwhile[j < people]( `! P! `$ `, P1 B6 _
[; G. ~( g. C& v' A
let new 0+ M. n3 w) S9 K8 L9 R% X" v
;;暂存新的一个全局声誉) O" k; e ]1 I9 t2 p
let i 0
5 H8 l! u* s1 O- ^: P3 Z M. Elet sum-money 0
" g3 I Q( q$ S5 d# C+ Hlet credibility-money 0
* j/ }7 R7 |* e4 g2 Zwhile [i < people]4 U8 M) K- ^/ k( t
[. m) I1 T; S4 S! P) X
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))' @* o: K' C2 ~3 y( g2 T* a* [6 ^
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
8 X: e) ~) I! Z/ y) B7 j' s7 M7 Oset i (i + 1)
8 d- i) m) c$ H+ f" o Q. u]
3 J0 h5 B) f6 ?6 Q6 glet k 0. o& M/ O/ R, V' j1 \4 E. T; ]
let new1 0
. o( U" x, L% z4 Cwhile [k < people]" }# T* M& G! j, t' a$ d( r
[
9 m0 }- i8 Z6 k( k9 v# H/ K9 m, Pset 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)
# K: p# a( K/ g. h4 nset k (k + 1)$ b [* v: }, i" n0 o. |! j
] f. } n4 }7 N R8 h
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
' u% c, u: G! _set global-reputation-list (replace-item j global-reputation-list new)
( o' t7 u7 Y9 z# Q# U" Rset j (j + 1)
k1 j5 Y% Z' @1 Y( m5 []
, V" l) l% c9 ]1 }4 ]: Nend& T# ^6 p0 x5 v3 T" E# E
! N6 J* g/ `% T4 k" U+ j6 o8 x8 v6 J) Q, A: Y: d" s4 D& _3 Q9 }
; Y1 y" D" K, D7 ~
to get-color
' v! [" A' s2 U/ D3 E
, N" b2 ~5 |4 j0 A; k* \7 Yset color blue+ P* ?' o9 J* X
end8 Z2 W+ k4 |" B7 Y0 I6 H; W) q: v
5 ~4 g& I2 I& ^7 [
to poll-class5 W* ?; ^2 c1 J) ^8 j) l L
end& z2 T m3 @& \" K9 D
% Q, J5 E4 e0 a4 ^. n) C
to setup-plot1
" P2 X% l: m; \" o
, N, t6 k3 b. \% w3 Z Kset-current-plot "Trends-of-Local-reputation"
! J1 H1 p6 x1 D' ?% ^$ q/ n; q& n: [$ W
set-plot-x-range 0 xmax0 ^* [4 z ?! W! g& I. v
5 |' q" K4 _9 T/ e/ u3 k( }
set-plot-y-range 0.0 ymax, U4 L. v6 D1 F7 _) j6 z" w
end; ~& X& J+ ]7 ?5 F& i
; @2 W, z) C6 ]4 Fto setup-plot2, S! k# V# S& h2 j* U9 r
" v1 ]9 i8 @; J/ Pset-current-plot "Trends-of-global-reputation"
% A, [* h1 f( R; d& g
. [) }( U! H4 x8 Cset-plot-x-range 0 xmax
" s$ v0 z5 |- t" R j9 G4 u0 u
, x; L9 Y# P& a% [9 sset-plot-y-range 0.0 ymax1 _+ g" [) d4 N3 Y5 O2 W8 K
end
! T" i& B. }8 A- D3 W {$ N- F; D$ L+ ~
to setup-plot33 d1 o; P4 A! t$ T5 `# j
+ L3 t# t' L) @( U% B1 D
set-current-plot "Trends-of-credibility"
9 b) b! I' t5 p
{: S9 k( i8 Hset-plot-x-range 0 xmax$ d P) a! E3 K+ _
. p5 Q; W' ], \# Fset-plot-y-range 0.0 ymax
, x; |# S1 f$ |" X+ k5 I6 i# send
+ r R6 j- Y' Z
( w) S/ V) Y! o+ c- f8 s. F" f9 Z- ~/ Oto do-plots
. A8 ]3 u e t4 ^set-current-plot "Trends-of-Local-reputation"9 K( c7 v" N* c# Q+ |" u
set-current-plot-pen "Honest service"+ q, _0 U+ I4 w7 T! y& P# \% f
end6 w* v: ]; D+ }- C
7 E" `( _" t! T" a
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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