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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; Q; c$ `3 j. n- M& H: G2 Y- v
globals[
+ e. z% g0 a( Axmax/ X. Z6 l. k" O7 Y8 m F) Z4 S. H
ymax
0 c4 M1 K$ c; K' ^6 Nglobal-reputation-list
: m0 [7 _9 _0 Y; | m- N; U4 |2 G" M C3 \ v: N# Y" R% U9 k
;;每一个turtle的全局声誉都存在此LIST中
. ?) `! m8 k: f& ^; w$ bcredibility-list
2 @6 `6 x! J/ I; };;每一个turtle的评价可信度
! e$ R& K7 ^. h A" Yhonest-service+ t; }' v/ N6 n2 [/ n" C+ `+ V
unhonest-service
1 ^* M' l' k' a3 ~; ?- {0 b5 doscillation3 ~ T4 |6 D/ C: X& X( m: u" R
rand-dynamic
7 _+ W, v+ p- P: F: N/ _]
" I9 ?! K2 q. T! `$ b! p! r
( p/ y, r6 E+ u; tturtles-own[. F' M6 ^5 J0 `, G a9 f
trade-record-all, Y2 Y" n5 v6 T R- z( c( H
;;a list of lists,由trade-record-one组成
5 N+ r" R, @" R7 Z, M# Ytrade-record-one
2 q: n) T- V$ U( ~1 _;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录8 D0 G' q) l X" c
; N B, h3 z) G1 J) c* W& D
;;[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' V" H; l; F' I% P& \- C1 Ttrade-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] `/ v& s, _ y4 N
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
! L, r/ w9 ^7 @3 i3 Dneighbor-total- L: l; ]/ o2 v
;;记录该turtle的邻居节点的数目- F! I# i6 `9 z$ p2 O. Y2 |% Y
trade-time
7 M/ M3 I$ F/ w, i# D;;当前发生交易的turtle的交易时间. y+ O% R0 ^) j* _; m+ x# _
appraise-give
2 C4 g" t8 _* Z+ R! a;;当前发生交易时给出的评价( x- B9 T2 B9 k% c( H) @+ I- |& P6 x
appraise-receive
; O1 g2 q& M+ N' W3 N4 d& B! [1 U;;当前发生交易时收到的评价. S$ s1 }7 R( p* B! T5 r
appraise-time( n" y" `! p% Z% \0 ]* i
;;当前发生交易时的评价时间5 }! r5 X& s4 E( p: f' Q, s! t
local-reputation-now;;此次交易后相对于对方turtle的局部声誉! i7 N5 A/ H1 B& Y S) K* j/ h
trade-times-total" q) \" b# u0 ]! F
;;与当前turtle的交易总次数" C1 `3 `* S/ r4 K$ b; b
trade-money-total8 G' O! Y r2 b1 o, E* i2 X
;;与当前turtle的交易总金额
' g# X5 Q) R- \local-reputation
+ B0 z9 b! D- o! j! z: W9 p0 Uglobal-reputation
$ L! {# ?7 ?1 p$ `9 O( C# Tcredibility( k7 J/ _5 S1 W4 t% V
;;评价可信度,每次交易后都需要更新
! I6 c0 i# h. }6 g; e, k: S' W, rcredibility-all
$ V- U$ n) F* A3 i G. u* y' [;;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
8 Z) P4 _ i0 |7 u! @- t9 t+ R( O' \9 n# \, Z
;;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
9 n6 W: g4 t: b. A2 J1 mcredibility-one
/ J5 c( X" ]; o7 w ~;;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
' X+ N9 s! A( N( _7 k/ Wglobal-proportion
3 J& Q: L( y/ k# S7 Bcustomer
9 G1 Y, u4 ?& d, Z6 r- H/ `) x: ecustomer-no! d- @" [9 E3 G+ p; \5 Y9 Q( s% Y
trust-ok
8 j e9 h$ R1 u0 h, m$ _trade-record-one-len;;trade-record-one的长度
_2 I" M, v+ C4 C: r]
2 [- Y* m0 w: @( e7 K6 [: Z( Q( T' {( c' R0 ?6 S9 h7 w! q$ Y
;;setup procedure
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to setup, [1 D7 n7 u6 u2 ^, H3 J! f
) x" u' G% q! N1 {2 p `ca
8 z3 H5 Q5 o% ^/ I- v- O8 k: o
: |" j4 Q* w7 ^, jinitialize-settings' v9 g$ F$ s( n" z0 r' U+ x
3 \+ Z. z3 I- n7 H5 Vcrt people [setup-turtles]
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" Y) F6 y& v9 e) hreset-timer) @7 V! c1 [5 r8 p$ V }' F
" N. _: c! z- F0 K) U6 G# P1 Ipoll-class+ B: E1 t% _9 `+ l" G! I
3 l0 m3 Q1 E$ q6 I' b: ?5 gsetup-plots
1 s' \. X4 e- n5 ^6 V6 ~& x# `, H# G- d5 _! `
do-plots
. V3 U3 I+ H1 U7 e1 s7 z" aend
S( J& H6 w" m- O4 M+ Y
& i- N$ V" U3 y2 y3 L {9 u% E8 @ Lto initialize-settings
' U7 ^$ N, U/ p+ N; G% ?
( P4 H1 P2 B# Gset global-reputation-list []
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: e3 r1 Z( I6 p Pset credibility-list n-values people [0.5]
. b' X$ s+ q, k E, ^3 c) C I5 c' g l! D. K! Y
set honest-service 0
/ i& r( s) F! _: e
6 E8 g9 L$ {8 F7 [/ a' S& Jset unhonest-service 08 f4 G5 p p! X5 a5 ~0 f/ u4 ?
# L @( V( W/ P( Y" I0 ]+ m! C' Eset oscillation 0
5 k8 y$ H! m- G9 q1 ?4 X3 ]. Q3 @$ i5 e- `, n% n* I; G
set rand-dynamic 0/ m/ [' G- \' B
end+ h& T. k" E9 t7 t Z# Z, R* k
4 T* F I% r& h& y- L. `
to setup-turtles 1 |' M* H$ x; Y" U; G# f8 t* x
set shape "person"' W* Q" Y8 Y6 S9 ]% ]! g) H/ Y _
setxy random-xcor random-ycor
, F0 M8 `- c# ~3 _ P' [set trade-record-one []
6 N/ I5 ]* H8 ~2 u W- B7 I
& |! N U; N; r$ A$ Cset trade-record-all n-values people [(list (? + 1) 0 0)] 6 i+ c% v. C1 H& r$ z
, q8 p$ C+ v0 }8 m6 O6 P
set trade-record-current []
6 S( O1 ^8 {/ [: sset credibility-receive []
& F' g2 \2 s$ }4 vset local-reputation 0.5
' Z. z/ J" T) Q( u8 u0 Z) |set neighbor-total 0, J+ d% k- V! f& n( j( i3 G( ?
set trade-times-total 0
$ P% ~3 D _1 @/ ~( Sset trade-money-total 0
6 e2 M! a/ j/ e7 a5 Xset customer nobody
) ^ g6 H" l% P! T5 v/ Q5 xset credibility-all n-values people [creat-credibility]
- n# l% T0 V5 x8 B, zset credibility n-values people [-1]
( S# d. W3 M$ P! u( y+ Kget-color
3 Q @- |* [+ {1 }/ f1 y5 H
( |4 R- V' H2 v% K# ?' ~7 Bend4 C, ~ I5 N3 Q
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to-report creat-credibility
3 P( ?( r8 ^" \* v) Sreport n-values people [0.5]
* x( p( X" Y8 D9 s( P. U! H1 Dend
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3 y+ c( L' U: t# p& S3 w% H5 ~1 Wto setup-plots6 J0 b0 g9 a* S5 |+ C, m/ C
, q5 X1 t6 \- {3 M0 Oset xmax 30
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set ymax 1.0
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clear-all-plots7 h" j7 k, E; l& U; X
; X2 x J0 x. v$ O6 P4 ssetup-plot1
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setup-plot2
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setup-plot3
& x: }7 `' a8 Z+ M$ i" qend3 s, t: Y4 U% j: ?
+ e' V" I d* f+ j c* ^
;;run time procedures1 p- t+ h' N" f; V
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to go
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# u8 l n& q, }5 v" j4 fask turtles [do-business]5 P0 m7 i6 s0 s8 Z- s2 i. J
end% L4 p5 g+ B9 O* l" ]3 E/ w
# J! Q. }1 ], T9 O6 Dto do-business
1 ?7 o" l F) ~3 q. n" e7 E1 J3 S3 K( Z- N- {$ z
H" ~ p, p; d0 Y# [) ~
rt random 360
; E" I( a3 F( F
4 r& A3 Y# ]+ n. j6 Qfd 18 X7 N$ y3 H8 J0 V. G
7 B' P. u7 E+ o1 |/ nifelse(other turtles-here != nobody)[. |+ V; T# U. M2 C- T! T5 E
7 X. e' y6 Y( {6 u
set customer one-of other turtles-here* g! V0 `' u- J# X
; O8 k; a. `$ `, k
;; set [customer] of customer myself
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. {$ O) @( b0 |0 cset [trade-record-one] of self item (([who] of customer) - 1)6 @5 I; L* n, q+ n$ I% L* Y6 P
[trade-record-all]of self
. k/ r- }/ Q6 `7 ~* z ~) W) E- l2 K* ?;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( V3 s9 u2 I5 |3 u9 N
/ ?9 _! |# _* Rset [trade-record-one] of customer item (([who] of self) - 1)5 u0 \4 x5 K$ o# X# Y2 r. y: @" q
[trade-record-all]of customer
& E' W1 h1 p$ [1 I' V) |+ S* l
0 O0 R! Q) L4 N; G( D' a5 sset [trade-record-one-len] of self length [trade-record-one] of self* G3 n- g( {5 _+ O3 |
4 e4 U% |8 ^# y, O; k3 e& Eset trade-record-current( list (timer) (random money-upper-limit))
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5 f) m0 u/ Y. {( z4 task self [do-trust]4 }8 S) a! |" Z3 J
;;先求i对j的信任度
2 z' ]( t& t9 {' E, d1 p6 f# z' W. k( o: {3 i5 s
if ([trust-ok] of self)* l" ?4 X/ Y: D
;;根据i对j的信任度来决定是否与j进行交易[8 `; z6 J2 b0 ]
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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5 l3 Q: R; Z' @# G; S# N+ T; d" K[
; R" E9 J7 Y, G+ ]: F1 p4 U: s# M% D5 ]9 q" n. E: z* R) h
do-trade
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update-credibility-ijl
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0 N! h5 T; A, r- C' zupdate-credibility-list& W# l D) o2 ]/ z
6 W O# o4 r, Y6 n+ v2 \+ D8 b- h
" q1 [, y5 N* yupdate-global-reputation-list
5 a5 P N. f. X( m0 x" H% w1 e- W4 ~& x8 Y0 a
poll-class. e T# D+ I0 v4 n( [ I
# e+ E9 W8 o" K4 } I0 L1 Y6 [get-color
- l" j1 T; B& Z' d% x
2 X* j" @: }7 a* U( \; ~3 k3 []]
( h. E- s6 K) \" Y9 N- x) n1 \, W9 b# H
;;如果所得的信任度满足条件,则进行交易
! \' z+ f& V7 g9 M: E1 } Q: s# u5 i( @0 }; G% T" E1 Y- g3 M6 u; z
[
! C9 e" [3 Y" d1 n. b7 j% k+ h' U/ N! Y& i+ {
rt random 360
/ t$ K' q) |* B* P6 u: m6 w4 Z1 I$ }) U0 O3 R! g/ L3 B
fd 1
4 }. R) Q: s, p2 c8 {$ S8 d
3 ~0 m; r) T* i `1 Y& B7 E]3 U6 Z) N& f1 X8 j3 R
% Q K: E- q2 _, `- {
end9 v2 w& G3 O; p9 a0 {
7 Q1 q$ y8 c; d3 ]( a3 L
to do-trust " k$ P4 |) F8 {# ~2 v
set trust-ok False
8 L! g4 y. E) [2 w( n: g I5 a0 p3 D8 s. X: b4 E
9 W+ T: j1 P% ^1 U2 s: Dlet max-trade-times 0. Q: c% [5 p; z$ j
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
. Z- s4 I: P! f/ Q. Slet max-trade-money 06 m. d8 r3 c" T) |7 n- x
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, v& }2 a% F( k0 `% W8 X8 ^let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))* R" s" M& O$ [% r% [
: d1 s4 c7 D: N8 r; _: Z% b. n# C b' C" W1 z: g
get-global-proportion% [/ a9 H3 N9 G
let trust-value8 Y( h m6 N1 u
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)
2 K, q* N: u/ L' {! N# |( zif(trust-value > trade-trust-value)' |9 V5 b( Z! M* a. R& d. q
[set trust-ok true]! Q& B: X8 u" g; u' f- n( Z
end
9 q% \2 z* V" } P T0 l6 h( \5 b9 ? j4 Z' S8 C2 d+ c
to get-global-proportion
* Y' f1 D9 M* y7 v7 e: ?, ` E4 xifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
9 k! L- ~+ @+ Z. R3 q m Z* Q[set global-proportion 0]
/ d5 [# }- U) X3 m' l[let i 0
( J: u1 }3 r3 P4 U( i) h( llet sum-money 06 s7 E0 z7 R, q9 `! ?
while[ i < people]
4 K5 l3 D0 t) w! Q[
/ H- H0 O( L/ `" qif( length (item i
+ }- x/ _1 T* S! g I0 b[trade-record-all] of customer) > 3 )/ f9 D7 Q f: }, x; ^ \
[
: w% J1 c, J' zset sum-money (sum-money + item 2(item i [trade-record-all] of myself))! o. P9 Z0 U: k* O' W0 e
] B8 D# ]% V0 v- q: p( V
]
. [# K, g: U, |let j 0, a6 g9 h: y, |. ]. A' ]) K
let note 0
) f- J. [% t0 J/ W: ^while[ j < people]5 W( n0 [/ I3 e+ G! @9 L3 K! n
[' d, O1 X# i g+ E/ Q7 e3 h' i: n
if( length (item i, D: @# Z d6 p
[trade-record-all] of customer) > 3 )
& W S$ Q9 [9 ]" u O[- d" V4 |; m/ L
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
. R5 T: r& r+ {+ `3 t[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 N" n, ?$ p$ A# i7 J# W- @
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
0 E$ I, F8 N7 [% v; |! A]0 m7 V5 W. v5 I* N- |/ N! u5 o1 ^
]. C2 n2 n) F/ t4 I2 M0 w7 y4 n
set global-proportion note/ @; T- t3 ]0 S; S$ N
]% C1 e) T& ~& B0 y) O& u+ U s
end
$ H- @. X+ R# m. |# A- m
6 b3 a6 j: {; sto do-trade
" G: W9 H. K5 Z: J `! A;;这个过程实际上是给双方作出评价的过程: P$ S- F* u3 B( P
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价7 g6 x8 l/ K' g7 Q5 b
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价) s5 R7 Y6 a' L8 C% S% u9 O3 A( t
set trade-record-current lput(timer) trade-record-current
8 u6 \, _% i9 m5 R;;评价时间
- M9 l- r* J) |; ~4 |ask myself [
3 T/ @# A4 @. V4 T0 Dupdate-local-reputation; X8 u0 D+ G, S$ G# C8 s
set trade-record-current lput([local-reputation] of myself) trade-record-current9 K8 D1 e! h4 y' c
]
9 k+ V" C3 j3 ^ T4 G) Bset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
- l a% s! o u3 d- Q- K;;将此次交易的记录加入到trade-record-one中/ ^! c2 I: E5 r8 K
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)2 m4 z4 h& Y5 |5 o! X4 ?7 c
let note (item 2 trade-record-current )
" D6 y! b/ z) ]+ l+ I6 rset trade-record-current* }/ `' ]3 L/ L& y
(replace-item 2 trade-record-current (item 3 trade-record-current))
9 ]7 X1 h/ D+ W$ _3 k: _- wset trade-record-current4 ~; P. N) Q3 X
(replace-item 3 trade-record-current note)
' o$ L' T( Y% a- z0 `2 T: r) K& j3 s& h% U7 b: k' Y" v
1 {1 s! `1 u, @) xask customer [4 x5 Y7 J- _$ J; P. s/ f
update-local-reputation
5 y* i- k+ m( @- ?0 V/ zset trade-record-current
6 i/ \, P: a5 K3 \6 @(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 3 e" s5 Q9 @9 r \7 ?8 ?
]0 M- n; `) G% g/ \2 \) J
) R9 {+ b, n9 U6 `0 _# v
/ @: G, t3 }$ A4 L4 i \set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 @% `2 |% N- I
& V8 [& S" K% D s V8 ^1 `
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))5 x `" ?3 H0 R% `* U
;;将此次交易的记录加入到customer的trade-record-all中
* V; R- @ i7 ^. W" r5 ~end
* w2 l, G; L( m% B, o6 z p- p/ k% i! h: J% i ^4 n
to update-local-reputation
$ ?: y. x8 o, h4 C0 I* pset [trade-record-one-len] of myself length [trade-record-one] of myself
! J+ k$ L% {+ e4 C+ j2 t1 _1 {8 t2 W% v9 M
% c/ s( M: C/ L9 ]% v8 H6 `# y
;;if [trade-record-one-len] of myself > 3
( c" y7 J. f: Supdate-neighbor-total) `2 A) v3 B2 U
;;更新邻居节点的数目,在此进行! P% W6 R% h1 u; k/ e9 ` X8 u* u5 _
let i 3# x- y1 }9 A5 b; ?
let sum-time 0
r: o* M% D; | Z! j7 r. mwhile[i < [trade-record-one-len] of myself]
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set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
# O" E/ Y, ^( @# p. yset i7 n/ c( L5 ^. J3 j
( i + 1) \. c- w5 v6 V8 G7 Q. H( k
]) G9 E) R# _& Y' ]7 i0 c
let j 3: i1 c9 Z- A' {2 r4 R4 P/ ?
let sum-money 0# `, F* r8 |" n" |3 d$ N! m
while[j < [trade-record-one-len] of myself]
$ v8 ?" A& C) j' r[
5 ]* N. _0 i3 W8 Tset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
) K0 C: f0 q4 k1 V# Q5 w# H4 iset j& Q; g# F4 q" ? a' B
( j + 1)2 }- @: ^( f" }: F
]/ D% j1 Y1 M' P/ @/ v X+ p1 I8 N
let k 3
4 U* A$ q5 B* L0 w+ Hlet power 0
: }) K( g! {- J+ ~0 n9 m7 olet local 0. l& M3 }2 `; ]0 f+ Y" S
while [k <[trade-record-one-len] of myself]7 [; c: M6 n$ r5 H
[
0 z J+ v/ j! @, ?" r; X6 Aset 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) ! y1 _; l& p7 @' l5 G9 k3 d
set k (k + 1)
+ A6 h b( n/ K: w0 H; p]
- G2 X, q5 G( S4 Kset [local-reputation] of myself (local) d; t3 m9 A( b& c1 s
end
4 C1 [ p; A$ i( L4 ]9 | ^5 {; _3 \) o
to update-neighbor-total0 ]% k7 ?% `9 z
3 ^1 L1 I; g' e. A4 Bif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]7 W; N) K; _ H/ Y
9 R6 e$ z1 L$ a% j3 J5 }
, q' ~/ z- t- H9 u8 L. H9 Eend
% y/ t; e F @# w9 j" ^/ y7 N0 `. X* i/ x7 q
to update-credibility-ijl & v4 `* V( T0 Z9 N" }
( }, D0 @9 I# w W' [% K$ ^;;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 |5 Q" v# i9 _9 C
let l 0
8 O% W+ u5 J$ d. T' E/ ?) Y- ~while[ l < people ]
: l5 ]: y3 R# b5 v' j% m G& @;;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/ @& c% y7 a/ F
[% V! [$ g: ^, d: Q: x
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)2 S+ l9 v2 I1 o9 N; \
if (trade-record-one-j-l-len > 3). u* Q- E4 C* n6 U
[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-one9 @( g2 [0 p% S* r' ^# U
let i 3
5 i w( ]' B$ a/ Zlet sum-time 0
# q. E" G* B4 i/ K5 Dwhile[i < trade-record-one-len]
2 Z8 O0 o7 U$ `5 ~! p* C" }[
+ Z6 _. n4 ?$ w+ w4 t( ~4 ~& Fset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )/ D ?. p C6 r( j! O, e A
set i: Z( T7 X/ d, `
( i + 1)' v5 ^6 F& \7 Q3 a* e
]
& T) z! T/ u$ Z" W& h* {* R jlet credibility-i-j-l 04 v: l# l/ o% @$ U( _
;;i评价(j对jl的评价); l' w8 V0 k- t7 S- t) w/ s+ F( n
let j 3! [ Y& C! t6 k' U. ~$ ]
let k 4
9 _3 ~4 T9 ~( {" Y) [4 F$ V& u; ~while[j < trade-record-one-len]2 E( F ]. _; b2 C- i% [
[
5 j' a. J6 J- y6 l( Z! _( ywhile [((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 y! T8 M2 j% {3 n0 J$ t0 j
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)
) H# }2 P/ c* C( n6 ?+ ~' Bset j' f: B8 Q. M4 D7 j- w
( j + 1)- ~' V9 a x# C# ~' y8 ?" e. \. p% t
]
# x( O; _2 U: q$ Sset [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 )), h( e! a5 s) _
/ J/ \6 P. |1 @/ X. K
6 v- ?& e3 x6 T8 T5 ?- C+ p, X
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 L- d* g: Q* ~% S
;;及时更新i对l的评价质量的评价
m7 G7 E, l) L2 Y8 L1 J5 J5 |set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]! C. V. Q: Q5 s2 S- C' O
set l (l + 1)3 p$ [# c: T& d
]$ H0 {2 ~! N1 u3 Y: I6 T
end
! ~6 Q# ]# L ~' v: w' F
+ N; J$ w9 ^7 M ~! Mto update-credibility-list3 P% h9 i$ O# t0 f) Y, ]
let i 0( X# K# N) Z/ b: m
while[i < people]& W( ^( V* X$ B
[
* C/ E& Q5 R9 g4 i6 \- a& Tlet j 0" {% L; b) N6 b; a
let note 0
& `; l" ~ \: ylet k 0
: A1 G! x+ j$ ?: z;;计作出过评价的邻居节点的数目7 V; C* z1 L; T" e4 o k% u6 t% @
while[j < people]9 x3 s! i1 g5 n2 d1 U
[" Y4 J' i1 c( E9 R* ^3 ]2 n
if (item j( [credibility] of turtle (i + 1)) != -1)
: j! S0 }: F$ H6 E6 p;;判断是否给本turtle的评价质量做出过评价的节点
7 I3 x1 ]" }: W! I" D, s/ z" p6 o[set note (note + item j ([credibility]of turtle (i + 1))). s; b% y& |( {& e* W0 q/ b
;;*(exp (-(people - 2)))/(people - 2))]0 K/ k4 y5 G8 u$ l$ U" b
set k (k + 1)' h/ I7 t+ A2 I u% l% @/ [ ~
]8 K1 T4 R: z8 Z& q7 m
set j (j + 1)
1 B8 X4 E/ P' I' T j) f]
# q: r6 l# J. S( Cset note (note *(exp (- (1 / k)))/ k)9 y8 q) q- [( ~& d! x, d
set credibility-list (replace-item i credibility-list note)
- J) U6 O3 C) ?$ ]8 S1 i2 |set i (i + 1)
" u2 y) e9 Y& }( u]
: T+ P/ B9 U p* R4 Aend
: ?, q: I0 @1 F! q$ W% t' u
8 [( G H2 S8 r; rto update-global-reputation-list9 x% W! I3 ?, A3 b. j
let j 0
' t/ T. m/ @+ K) ~1 ]while[j < people]
# q4 }) ]2 Y( T3 y[
* }3 r5 p; b0 j ~# K) Dlet new 0
2 d/ x8 p% \8 z1 D8 O5 u) H$ I3 g;;暂存新的一个全局声誉, p/ L/ q6 }( Z% p( P4 {4 ]
let i 0
: x+ P f/ e( N' M- ^: c$ g0 t1 Hlet sum-money 0
* Q1 V0 @& Y& i/ I2 w. J: ~! S: Flet credibility-money 0
% y. m, W( Q0 {% X# Mwhile [i < people]
# m! _* \/ |) N, `& G[( L+ m. \- ^9 c. w% o% {
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( `# p( E4 ^- E3 r# P" y, u9 } Z
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
3 G2 u! {$ O. X; ^2 h1 qset i (i + 1)
) f' }" {8 l9 Q6 V5 r8 o7 {4 K]
. h( B. A4 B* U$ @ K) Jlet k 0$ j2 S; d) [, }4 _1 N
let new1 0; c* v0 O) B; `( K" |
while [k < people]* G" Z9 c1 `; ?/ L9 h) ?2 x: L
[: d! V( \8 I% |9 k5 A: Y* s- m
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)& _- U4 Q! C) l8 _
set k (k + 1)9 s0 E# m1 i; ]. O+ o) c
]
( r# {% O+ C4 ]6 vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) + A& u5 ]9 ?& W9 {4 M
set global-reputation-list (replace-item j global-reputation-list new)' ?$ V; ?2 h$ w
set j (j + 1)2 d& x1 ]. ]. w
]
( {/ D1 p% Z/ l. H/ i: M hend
0 s, K: j& B+ R3 X B u6 V
* s) {, f0 A2 A9 J+ K" D
" n8 u" K; U: u$ M+ ?! J
8 W2 e3 I, g: N; l/ o( Dto get-color
& v+ w& _2 w0 p! i& b! X- x+ C
5 l2 C1 D, W; g6 A6 v/ Wset color blue
5 ~3 u% X7 f' k+ Q7 H; s7 rend
' S) @ H9 x1 |" C( C1 `
9 f3 D9 ], f. M7 A. v5 v/ ^! K# ~to poll-class+ J8 K* n( \$ a
end7 Z0 x" _7 z7 R2 q! `5 B" M* B0 h
8 |; A$ W' g. K- @6 [! P0 }to setup-plot1/ m' I0 f. k# ]
+ E, j7 h0 O: d, [- G J1 lset-current-plot "Trends-of-Local-reputation"5 }' Q. z( r/ I; s% y# ~6 P
( y5 V# b1 ]2 _6 l2 z" K
set-plot-x-range 0 xmax/ U9 h) G1 B" w1 M$ e8 }
5 | T M1 j7 O/ Hset-plot-y-range 0.0 ymax
3 B+ I- u* Q+ m. D+ `9 Kend
" i( S2 n6 N7 |4 z2 _! t% o. s! g2 a) G: K5 N: _6 V7 Y
to setup-plot2* \. U+ v5 p& J) x/ {9 d* v
' e/ L: V) L) ~4 y. L
set-current-plot "Trends-of-global-reputation"$ J; K4 L2 ^2 J. @% J* _3 N0 Q* f9 a
7 N! P" |! X; B5 ^
set-plot-x-range 0 xmax; O: V3 s! ]; R4 |7 k
* U, L+ L1 ?2 {set-plot-y-range 0.0 ymax/ s+ c" u8 b: y8 W7 n; M; H
end8 S" o3 |) F* \. Z, Z5 L
8 j* \( T- L( E% \+ O* ]
to setup-plot3
# k& |, N5 U$ ~$ W0 u- K" F1 g: I- H+ ]& q' L& X5 ^& b* @
set-current-plot "Trends-of-credibility"
, y; W2 g! _/ i9 _
# T8 I k8 J* F' u1 Eset-plot-x-range 0 xmax
/ S; ?# L7 n4 p
" l3 M+ ^, i& S; V) T. ]1 _0 S3 Sset-plot-y-range 0.0 ymax. O5 m; ]1 g+ b' f
end/ P, K$ C& X, S1 V# ?1 S
' Q5 D- y2 F/ O0 r
to do-plots
) o! i* c; o% M7 c$ G. ]set-current-plot "Trends-of-Local-reputation"
8 Y/ x7 x U# ^; i2 L! yset-current-plot-pen "Honest service"9 F' h$ O; x# ?
end
1 B# D* `; K+ I& c4 T, a5 \9 y
" d% ~6 U, }; R/ Z* n[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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