|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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* t; y8 S" _) J, }( X9 s9 u
globals[
& S$ c) E- ]+ Z* X; txmax- s) ?( _5 B! F6 U8 I- ^
ymax
: Z. q' H) ]3 D7 Z- t( ?8 oglobal-reputation-list; T, o$ t. f9 y6 j) }9 A
0 ]4 x# N# S; Z! g2 o& ]! l3 k;;每一个turtle的全局声誉都存在此LIST中3 x- m8 L4 }2 d# C8 _7 [3 O5 Z+ v
credibility-list
$ f' W6 l7 ?& e9 P! \1 p k;;每一个turtle的评价可信度- D- w% g5 ]( z6 c& {3 J& C
honest-service. h, H+ t% ]. v
unhonest-service
! ^* `' W. y0 u* D1 Z" P" ~4 D" Joscillation
- ~% O4 o. Q; Z8 [1 lrand-dynamic
, P: I7 U" @/ N]
% Y H y% `7 _3 D5 L9 Q: ^
: }7 U6 L2 E' L" O! P6 r+ e8 Q% L ^turtles-own[
1 V6 S S% l. b7 ztrade-record-all/ n9 x/ G# f x& p6 u
;;a list of lists,由trade-record-one组成# w. c! L% S& G3 B3 O. l
trade-record-one! f( k; y5 v4 O4 j( q
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ L' B$ O/ X( L9 J5 ^$ y6 `' z2 I
;;[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]]2 f- e& v [8 ~- i9 p/ ~. F3 s9 y
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]
+ b( J2 {7 x3 Ocredibility-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
% X3 M `4 N# t+ u( m1 }neighbor-total% V8 Y: ~( X5 m
;;记录该turtle的邻居节点的数目
4 X- t1 p* J* U4 D3 O* n& ]trade-time
$ x: w3 K6 Z3 V- i;;当前发生交易的turtle的交易时间% P$ f. c! G0 Z; G
appraise-give4 g, C- h4 r' V7 M& a
;;当前发生交易时给出的评价
3 J3 Q; I2 u5 L9 m" vappraise-receive# p/ ~" W9 Y% m k; e" `( M; M
;;当前发生交易时收到的评价8 H" h5 p O) B1 d
appraise-time
4 Z% V w7 Z5 }! E2 B& k9 y;;当前发生交易时的评价时间
4 L( m( q. ~& t1 z8 X# m/ Elocal-reputation-now;;此次交易后相对于对方turtle的局部声誉1 E% G6 ?* _5 }
trade-times-total
/ R$ w1 b9 A6 b. f* };;与当前turtle的交易总次数
# H h/ X9 I% qtrade-money-total
% t2 z3 X" x" U+ N. k;;与当前turtle的交易总金额$ Y- Y* O. `4 Z L. u; K% Y
local-reputation
5 i# \. o% f" }5 l- Dglobal-reputation2 ]1 g% d; x0 X z% _ ~2 ?
credibility
7 v% i) i! D# O) X0 g% Z$ {;;评价可信度,每次交易后都需要更新
2 `; D: t5 I( w$ I; l5 icredibility-all7 d0 B8 Q- U; Y. t0 B( d
;;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, a; [2 E" C/ R$ e& f) l, g- m/ J
* M3 I0 n) R7 e1 v4 r- \7 @
;;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
2 }3 q7 X; Z, K: @* scredibility-one
- f. I' j7 g9 @. i) B, g0 U;;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
( B, X% l8 g4 ]! C& i$ |0 wglobal-proportion
8 U0 x& z- l8 X7 ]! c, }customer
& \, R' _' R5 l, [4 A% O) scustomer-no6 U+ d/ B4 E0 J+ K, a4 w
trust-ok% W q l& G4 d8 n$ g! T
trade-record-one-len;;trade-record-one的长度
6 F2 U0 i J, g; S1 l4 d) y]' i7 d1 J. o3 b2 D# ~: M
. {7 ?8 o5 h: F0 `5 K* s
;;setup procedure1 s4 |# \; s1 N Q% k
0 n0 Y9 ~6 }5 ]% _* o
to setup- | ?- r) a0 \9 l- g
- S; J# b2 X' w! \$ C# Vca: J. \) o, |' m
0 h; y+ e% L0 q' k
initialize-settings
5 h/ O- |7 R9 A) v5 o. b: Z3 x' E k( \8 x1 y4 ?5 G& D k
crt people [setup-turtles]) a! y j+ V# X) J% h( o ~+ W4 A
, w/ F: p+ M4 F& Lreset-timer' X# t( j+ v5 n+ E
( g: h' h' q4 c. d% vpoll-class, M% t, J6 Q: ?; T5 f
/ z j- _3 K% g) ?* ? i8 lsetup-plots$ a$ S1 L$ t6 u: t
& h, O' X2 o3 z2 a, X' [ Xdo-plots$ w/ g3 C# }8 K/ m7 h$ i" x) X5 {! ~
end
/ a4 ]) w2 V! n: e, [' n0 s* \! u9 t
to initialize-settings
5 X5 U% \) V1 c' K# C/ t5 V! [! y8 }
set global-reputation-list []6 |6 W1 Y s! f
q% U4 [3 U- F: y: z/ Tset credibility-list n-values people [0.5]
# Z u8 ]+ C; s- U+ D# ^3 q! _
- ]" |9 u9 E% m1 C* L$ ^) @ v% e. C, ~set honest-service 0
8 _- |" @4 [0 E5 K4 ]0 O. V. x" _+ f" w, ~0 k9 [
set unhonest-service 0
2 I8 m/ I I/ V0 \0 U. I: x7 T- `' D; B! O$ s- k
set oscillation 0* X: z' {2 w8 v/ @: T
3 Q/ s+ J* o6 P. p; D" T4 t
set rand-dynamic 0
9 x+ C" q8 N* q) k D( A R% pend
' q' ^0 F+ _: d4 i' O' j! P K( V4 }# Y) Z" a0 J7 c5 d$ p# M5 J
to setup-turtles
& k; ], W6 |2 V6 _3 H$ Iset shape "person"5 N& U! f; Q$ V2 [; x
setxy random-xcor random-ycor" O+ Y$ I: j9 L# v& X" L
set trade-record-one []6 u) P: {$ e, x# ?5 X( J+ n4 j2 ^
; U; J* y2 F, `; f% W; `$ iset trade-record-all n-values people [(list (? + 1) 0 0)]
. w, J6 L B7 ]8 A9 D
( @* U: r0 W$ ?" \2 Lset trade-record-current []
0 p, {' \& O) ]& Zset credibility-receive []
0 O; w; `. P' v( i* D9 U% hset local-reputation 0.5
( y5 w) @, j& F5 E7 Sset neighbor-total 0' r3 q/ w& r! U8 Z0 g% g
set trade-times-total 00 Y; ^6 {1 B: V1 I* e
set trade-money-total 0
: L$ {0 E' `3 n0 l% Z7 G+ ?set customer nobody
4 k6 F% l+ `6 _" Mset credibility-all n-values people [creat-credibility], |2 ^' q; i/ ]8 v
set credibility n-values people [-1]
4 O% K V, i: [0 Rget-color
9 N n3 r: i; j- Y. P- F# o1 C- Q* U$ }/ p1 S
end
/ e( H8 c+ m* s( N; W0 c6 [" o
' G& n/ o9 d( f! _. ]6 _1 C1 w; Mto-report creat-credibility
" q9 E5 s9 f) Sreport n-values people [0.5]* V- L- Y. U$ s; N: q
end# x h5 m9 f6 z2 K
- e. I$ H! D$ M& ~5 C' L+ @- nto setup-plots: b! r* g+ ]* N1 X
2 x+ a& b, M! T9 U& W5 \" U
set xmax 30: `# d- d7 y' H" I4 s' `5 t
1 J, {0 D% K- r( x) T: Lset ymax 1.08 Z: H. \* L; s
" j- Q' H) W& e7 D3 ^, z
clear-all-plots& `2 ?9 g/ [, c' F
' v+ N9 l$ q. G# g/ q$ [setup-plot1
4 f, h5 C8 q( u) H) u, {5 H5 N; Q8 x3 f7 B$ @
setup-plot2
, y% [" c0 e D3 L, m2 C+ c- J* ]0 l' t/ e/ l: d; g& c
setup-plot3
/ X$ a. M; L2 Q% n" `9 H5 r6 oend
) I) f" j' Z9 I1 `4 c9 T6 y* ^8 q; K0 {" ~
;;run time procedures* }* x, g( f' Q
4 x A) j* p; z0 u# d' ]) Y+ ?
to go
. Y, F+ P9 y" n3 |5 G9 G% ~
; c' s i+ @' ^3 o& Iask turtles [do-business]
' i' T4 m6 X5 [) G Cend
1 }/ S$ a. Y; j2 {6 M6 r( l0 x
- z: A F+ m$ u# uto do-business
9 R" X# x1 F) v# l/ m# K# m2 t# N- P8 }6 ]4 C. k7 s
2 i' d# g+ A) |5 m5 r
rt random 360
) G% w4 W: W l! p1 g
0 ~# Q7 u1 y) b8 h. S& ]! X5 X# Dfd 14 |" F& |* B8 k; w5 F: x, N0 n
/ g% s8 A4 C" ?ifelse(other turtles-here != nobody)[
) n" [( K8 ]' B6 w
{* ^) F- X% \- j/ ]) l0 y' _ tset customer one-of other turtles-here
" o# e+ T3 y' l7 L1 L, K$ }& \
7 N$ c5 D% M& Z;; set [customer] of customer myself
5 C% v' h1 X8 w V/ J! F+ |' B0 L$ q# q# ?$ h! W/ Q
set [trade-record-one] of self item (([who] of customer) - 1)
6 N# L6 K1 ~/ ?5 x% M& R/ ?+ p[trade-record-all]of self
9 x& v( p* X% U3 L;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self' U$ A5 P4 l5 }4 S2 g
! G3 H0 W: f! e. T: w
set [trade-record-one] of customer item (([who] of self) - 1)+ F$ f1 @9 V& z% [5 V0 \0 B1 L5 }
[trade-record-all]of customer
- }2 C0 z2 Q; z( C7 _1 q: _! c; K8 p3 z
set [trade-record-one-len] of self length [trade-record-one] of self
" ?- D! V8 Q3 d/ f/ x& S- \
7 M; o5 O; u& }8 h! j8 O7 pset trade-record-current( list (timer) (random money-upper-limit)); R. q1 v, h( @- i/ k+ E7 M, A- y2 [
: d# o4 [) ?5 g, Uask self [do-trust]
% G. E$ v3 f9 A& V: s;;先求i对j的信任度
$ [# m |; E. i8 u& K
+ }% z6 O2 j. \$ Y6 K" ?% Qif ([trust-ok] of self)# ^6 h% n0 q* {* e* E1 c0 _4 m+ E
;;根据i对j的信任度来决定是否与j进行交易[( l3 a5 J, I& s8 Z3 [
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself, R( G: i5 g$ `) r; i
% h X0 B P' i7 I' ?, v! Z7 [
[ ?% u# u3 q, c7 N
R" K8 W" U; r$ J/ F- g9 @do-trade
3 v0 m3 h; `( c2 `$ ?0 R- `+ V" ~* a& ?' R
update-credibility-ijl
; ~2 r$ K: G# K- g4 W3 ^4 w- G5 d/ f( L( E/ \
update-credibility-list
" I+ z$ z" T- B' x. z1 v
6 O6 {$ J6 u1 A6 J3 W4 a' i) I% g' [, |
update-global-reputation-list
! C$ c% ?7 c' A s1 ^: @, h: X% H! T* `# s7 Z
poll-class# j; V" F# T5 P8 T/ x# y
- R4 O& E5 z+ Z- t0 Q3 vget-color
) F2 M$ a& f7 V8 U9 P5 T H& l! B
9 A' X+ M/ \4 x' k" f2 ?3 v]]
( f8 q4 L- G5 b, W H8 q3 {1 A/ e
;;如果所得的信任度满足条件,则进行交易: Y3 Y6 u" r+ ~6 R: h
/ N3 ]* a G; q
[
+ U2 x8 ~% j0 w$ X/ q7 @8 n$ O- U U+ t' F: o6 F, j
rt random 3601 S V1 d: L7 |2 Z) s
; N. ^/ J; C( x# f8 ffd 1+ Y0 S( [' P/ }* S& i- T8 u
$ K$ K7 S8 T$ ^6 r]
7 o) C1 e ]( I3 \
& _0 @: i% a' Q9 E+ e+ r. iend
9 o$ k- _7 R3 Y& ^% V0 I' V3 X2 Y1 ~+ Y* P, T' ^
to do-trust
9 o g- ]8 u: M _" z9 |6 \set trust-ok False
8 @5 Q! g& y6 }
% e3 L; n5 H1 Z
+ r: j4 w6 D* b: [let max-trade-times 0' q# m+ f. c1 J) Y6 x
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
0 A( w- f7 H" H2 X, p6 C; @let max-trade-money 0
Q& N) v; b% d" _foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
$ Q8 n) W* `+ L$ g5 _# o( f: k0 dlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
& _2 p9 P; k+ I4 i! L* e' Q, x9 G8 I* M' \5 S- I
* X$ e5 A3 Z) l8 r$ b" s, q
get-global-proportion
: o' i+ f* [3 X% [% g; ^9 O. blet trust-value: \5 S& o& K) `; ^1 g$ _
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)
4 B% o: j3 d, N/ Gif(trust-value > trade-trust-value)
" O8 r/ S0 l" |& Z6 K% X# x[set trust-ok true]4 T: Z: H* r: T" N6 g5 }
end6 O6 E+ ~0 j, R' o- n% m, d
2 O5 P. D) q4 x. g* Oto get-global-proportion
- v0 Q/ |' o+ `9 j0 bifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* v0 u0 ^: S, Z" F8 w' H- I) H
[set global-proportion 0]
/ |: l- w) d, ^8 M[let i 0/ {7 t9 I. v( ~' k+ @/ C& t
let sum-money 0$ F/ ^. M5 @. l
while[ i < people]6 y; K: X/ a( S5 d) l$ C
[
5 \9 K. ]; |( i7 Hif( length (item i
# s' [# H1 o% i* ~[trade-record-all] of customer) > 3 )
( R9 S1 z5 N6 Q[
" \1 X+ Q& g. w1 z4 Y& I; e& R u$ fset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
b0 n; C9 X* |- N]0 [3 G, h8 }( S5 U0 U
]
! I7 U6 `- G/ P- `9 ^let j 0; j2 L" V% h) O6 O. W
let note 0
9 f; ?. E! u$ d6 v0 lwhile[ j < people]( a+ B- K+ e/ n# J3 ?
[% X" N9 d2 J4 ~
if( length (item i/ @5 {. u, r: u9 n; ?
[trade-record-all] of customer) > 3 )
. n6 M% P0 k; j[7 f2 W, S1 C% g u: o% h
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
- r, P) x0 K% s ^[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]' \ s; K" r% w9 w2 w
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
. `; L9 e5 R4 m6 h7 l]
* e+ O' L0 F' H. y# z]
) {) m! ]7 Q; m' ~0 i! P2 J% c% vset global-proportion note* H$ p! z: {- g, _" V4 R
]! Q+ z2 C1 |3 F8 I1 A% I0 g/ Q7 O7 U
end
, U, }* F4 q2 Q! Q& |
2 `5 @+ v7 h9 x& [8 v" ito do-trade' e* F+ n1 Y% i
;;这个过程实际上是给双方作出评价的过程5 _. O, N+ v3 v" D7 U' L
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
k- z, q5 i. @& Q/ Bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价& i0 g5 ~) H! t, Z
set trade-record-current lput(timer) trade-record-current" b$ F) i7 ^: z
;;评价时间
" B1 d. _3 J: o/ \ y$ D9 u7 eask myself [
8 X0 {9 x5 U9 U2 ~( L- u) fupdate-local-reputation* H A, |9 z( p0 L3 O( ?" j0 \
set trade-record-current lput([local-reputation] of myself) trade-record-current$ X" [2 X+ l; c% n
]9 ~- Q) L4 @( D! b$ c& Z+ W [
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself6 P( @8 U1 G& Y( q/ X C
;;将此次交易的记录加入到trade-record-one中
% ?- h/ o Y' p# J9 `/ _set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
( v* V/ ^- D9 V% Rlet note (item 2 trade-record-current )
/ ~+ S2 S& y, f5 }) a' N; u+ `$ tset trade-record-current8 e4 v/ F; O- X. v' A
(replace-item 2 trade-record-current (item 3 trade-record-current))9 J7 P' S# r$ j( n- c& m
set trade-record-current
5 }6 E" }) J6 d( W(replace-item 3 trade-record-current note)
/ h" h& j2 m: E. G; ^& S' V
_, G1 b# D+ ]/ _* N" V* w' }+ r
ask customer [4 q8 ?" a8 `8 S. D, B4 q$ t
update-local-reputation% L1 A6 `6 t1 s0 |; p, S
set trade-record-current
( k7 X5 u4 W( Y0 G2 A(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) % |# z1 L& ^$ |
]2 N' U$ N9 A9 m. E
- c/ S) I; s* l7 Q& \0 ~; |9 v4 B+ W8 i1 F, h( i9 P" k- i8 F3 E6 X
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
9 {2 e2 A/ M+ F9 b% N! v8 H) L/ }$ \ |
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" Z& d2 Q3 V: U' i: G$ L' q
;;将此次交易的记录加入到customer的trade-record-all中
/ j% F% \$ @, b6 ^end, j- h# ~" q9 ]8 x% h
# N2 c6 C# L" d) t1 o) P
to update-local-reputation
7 g" y3 \" O* n. r* [% Cset [trade-record-one-len] of myself length [trade-record-one] of myself
+ g* d8 F0 q7 `1 Q+ t" b8 ]* q
* I1 o4 C7 v# Q: J" M9 [
- U% Q( s% r2 C9 P* K' t+ Q;;if [trade-record-one-len] of myself > 3
6 e$ _) n5 L- X) p. S3 w( tupdate-neighbor-total2 [% E% l- ^1 D# @) b4 U% c
;;更新邻居节点的数目,在此进行
. ^8 u W" g- c5 P- J- Clet i 3 t8 {+ |/ T* g) p) B' z# H, W0 u
let sum-time 0
' t, D$ Q$ _* |; u( `3 rwhile[i < [trade-record-one-len] of myself]
5 C/ ^" D; x0 G( R. e[6 @+ E# l/ t$ P3 M+ X$ h
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
: {% Z m8 }7 n' Xset i
# {- L( m: ~# Z+ W! r9 A) y( i + 1)
1 n& P7 S- X+ g( [4 ^( L8 E/ j]" W- c+ ~6 B7 j; R$ G$ A4 ^
let j 3
' |' E3 l9 c8 flet sum-money 0
0 ]1 L/ E8 N1 G+ I; V/ D3 Vwhile[j < [trade-record-one-len] of myself]
8 j1 Z0 h" Q* o v# }[0 Z& M" G1 O2 ^# G" Z- M
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). S( e! `+ W+ H3 U }# O
set j
6 Z7 Z" q0 N) ?8 T( j + 1)
3 n( z* A; g. Z- h) V6 M3 f6 ]]5 c1 Z& s0 a$ [% f" N
let k 3" G2 Y. r; W0 o7 ^* x d
let power 0
; y) ~5 V% f( mlet local 0
+ ]- `- g' ?6 |" A. O6 Pwhile [k <[trade-record-one-len] of myself]0 v2 p" I' K9 w0 ~" b1 t
[
# C9 C! Y' ~ pset 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) 6 p4 q. L# z' e1 m" j, T1 a# S
set k (k + 1)
; z: _% D3 z; Y3 l! W]. p: p- c# r4 o- R
set [local-reputation] of myself (local)9 ?/ Z9 y6 q! W/ u: ^; M& D
end! S9 @# v# Q2 k5 M' E
& U% ^) U" p% P: @5 m7 w$ \: G5 v' C+ C
to update-neighbor-total6 M' I6 |9 P+ {; ?# [) ^" O
' y: v y$ K" K% x5 V5 x, d
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
. @ M7 l/ Y9 Y# s
. H8 F i4 W$ f/ ]3 e! X# d( Q$ b" ?5 i, k* b/ \1 y) d; k
end+ w6 c. a- {; Q- y2 c7 ~5 E
& p' U; B4 n1 O; v& p" R- k
to update-credibility-ijl 7 c- _. U6 I9 Q* R% f
5 k7 ]8 x0 H9 d/ f }* b;;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。% Y: @, r0 w7 x8 y# {
let l 0, d" t! d- f, u7 T( K
while[ l < people ]
" i" K) S8 v8 Q a2 j3 {;;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# X& N0 r! D( }' i7 w, U; E
[
* R% m& h% k+ j9 A& @let trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 ?+ b. F" v3 I0 _- M
if (trade-record-one-j-l-len > 3)
/ z. |6 Q# F- Y% V[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 w! V% ~* }$ ^+ L9 E$ D, A* ]: Jlet i 3& Z/ N" H; j( i5 i
let sum-time 0
" ?0 w3 y: r, {* O, @( z; dwhile[i < trade-record-one-len]
0 X* u ]9 r% U6 F# m# [5 M[
, w0 r) B/ Q& `set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 K7 U6 W( J* N5 v2 q3 Jset i
( R' K; P' }2 r) u4 r( i + 1)1 n( Y: `% F. a/ L5 C0 M
]2 U, P4 h% C8 \2 h( M
let credibility-i-j-l 0& b, c8 }! ^% k6 C! Z2 Q5 y
;;i评价(j对jl的评价)
$ l; i9 D) j; W8 w+ N$ Vlet j 3
+ o) I$ T w8 N) rlet k 45 N/ l: V) j# Y* z: K' d$ z
while[j < trade-record-one-len]' k3 n/ p! H5 ?- J$ s2 }) q @
[6 K9 w; R* `1 c5 ~" D- f$ `
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) s$ t5 o$ a) s: w* a
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)7 z/ r) S# B2 U' O+ e
set j4 O4 g1 C4 E, D5 J2 r
( j + 1)% R9 ?. ?5 X0 p9 u' h
]5 o3 g8 c; z, b$ Z$ u% U. s
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 ))& j! o9 D8 B9 F& A, d* j
$ P# G* n( l* y8 F
2 l/ w; S+ `/ G! s' b$ glet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))' D( {# c' I( D# D
;;及时更新i对l的评价质量的评价( ]9 y) O' ?- E/ N
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
: F+ a4 a S2 D m# e& @3 d# g, n/ qset l (l + 1)
9 ?* h' }& ~9 A]; b! Q* K7 [4 P+ J; W
end! A% p! l9 |- ]* ^, S- b* |) b
" `' y7 A6 W, i( A& o" F! Y1 G) I
to update-credibility-list n: y0 ^& U* t4 p% i
let i 00 {0 | N' H4 R+ V7 `, r# t
while[i < people]
+ ~$ R1 r# G# K3 d( {3 x+ ]7 j# s; u( d[4 u' t$ d" W# A8 j! v9 @% I
let j 0
9 C/ B& S: b9 W# P* [$ Llet note 0
- O& l$ ]$ D# i& l+ e; q) R' P" C1 Clet k 0
$ d) _2 e# Y. {% R0 K/ Z;;计作出过评价的邻居节点的数目# U/ `$ o9 |2 \7 Q" W
while[j < people]5 {7 I- I4 g( X0 D2 T
[% g6 `: l6 S: V7 I4 @
if (item j( [credibility] of turtle (i + 1)) != -1)
( V1 p/ i R; _8 P# g3 C, M;;判断是否给本turtle的评价质量做出过评价的节点
: M, q& l0 E+ Q- w# J[set note (note + item j ([credibility]of turtle (i + 1)))& d3 x: J; V! z+ z2 m
;;*(exp (-(people - 2)))/(people - 2))]
" M8 e, w* R, V7 S! I+ Lset k (k + 1)
/ t( |9 }( a1 q. Q8 e]
8 m# c: R, ^- ?5 q6 ~7 c+ B) Qset j (j + 1)
$ P; ^; K: W' @]) s6 s) ~- N# X6 M
set note (note *(exp (- (1 / k)))/ k)% U. F5 ~' C7 K% n, o" i. C
set credibility-list (replace-item i credibility-list note)- p e; t. x9 @1 R6 F0 K2 F. e
set i (i + 1)
# o# m) y1 J* `+ i& W]) x8 S+ C7 r9 [7 Z' }* l
end2 g0 h/ L. ~9 A+ Z. }. Z9 r. o
, A h6 |# [, D. v/ _% L. wto update-global-reputation-list5 M j9 A0 U P. L5 ?
let j 0
2 J; T) I! p. w M& S+ ~: w: owhile[j < people]1 `) Z+ g/ n" [4 e
[
& ?: l+ {" i3 x, t6 H' mlet new 0" r( v% l" \4 `
;;暂存新的一个全局声誉
7 B7 @2 i5 e4 V4 u8 K( Ylet i 0+ H' l3 l" g$ H5 \
let sum-money 0! m1 X- a4 j7 A7 T0 A& y& j
let credibility-money 0
$ O# _: i9 f/ awhile [i < people]
9 S" d! ?( K/ i, L[
) h: a/ { k+ F4 lset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
7 n# n, D9 p# ]* oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 H8 f, a( X5 |1 |! C- p+ B6 C dset i (i + 1)
8 z7 f1 Y7 v/ v& P U8 A( r]% O! E; F: |$ _ w$ p4 c, k, }
let k 05 @- Q. U2 y: O) p# g, i$ q
let new1 04 c7 e8 y) x4 d
while [k < people]
2 @6 v( K. u3 {3 [! Q- L @[
, `' U4 a7 [" \% s; Jset 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), y0 |6 \7 V5 ^4 T' a
set k (k + 1)7 |6 Q, F j" b5 n
]
$ M: L, X2 S* h4 ~7 P8 `( N( y( e# oset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! n! c" |! H3 B d
set global-reputation-list (replace-item j global-reputation-list new)
/ j& e4 w, ]; Z7 _$ p) |) rset j (j + 1)
& L0 n# `+ K. I8 M]
- {7 C) L3 l9 R6 pend
- K" U, c$ O% n3 e4 B2 k. Y; k3 n# {4 D6 ^# z1 O* P M
" Z8 D5 }; t6 b" |% a3 f- H* C: c W0 k- U4 q
to get-color
* K+ d; }& M; q2 _5 U6 |8 |; U- z8 {: Z# y% N1 A% A
set color blue
. l& d8 {% G3 |% ~; _' @2 r& Kend% E! R: e: u9 l- q8 N
: h+ f4 e1 m6 K/ L1 S+ Ito poll-class
, w. G" U" ?0 Tend2 ~& k: q/ t- R2 R2 h0 c0 ]
5 x$ N4 R$ g% ^( f, x1 u5 `, T5 mto setup-plot1( M) _3 k& F; B3 K" t* Z: e' b5 `
% {6 L8 j& f& b! \. B5 k
set-current-plot "Trends-of-Local-reputation"
. s/ ]/ n0 w# T! P2 k/ I4 T0 P5 }, W% M7 ?2 C: A) w0 v' \6 c$ P! ?
set-plot-x-range 0 xmax
- U, o" o# |6 J( _5 ]/ u& c" B
3 `$ u9 y9 }2 `, ~' v/ L- s" @5 Pset-plot-y-range 0.0 ymax
# m0 i) L+ _' ]6 G, gend4 Y2 _* ]& c j9 O, A. z
9 f/ p! H t/ M! ]7 y7 d
to setup-plot2& r+ b/ q O& |% F
; c( O5 s# f( u, d0 Dset-current-plot "Trends-of-global-reputation"9 l) e$ L+ u& l: p1 x
: g. G% f# _' _6 Tset-plot-x-range 0 xmax' u7 V+ K1 i! O( C, A. X# P
* f+ H ~+ d7 ~+ v$ Yset-plot-y-range 0.0 ymax8 E8 Q. M+ G% W% t( N9 _, H
end- F0 b) D6 ?' T* w6 N
% L% V m( ?$ v* S7 Kto setup-plot3" r. G: R9 A7 @
5 i# A' Q2 ]5 k2 U- A
set-current-plot "Trends-of-credibility"
. r8 |1 }0 E5 c& b/ g' D
) {: Y4 f/ m G5 r1 [set-plot-x-range 0 xmax
w; y V% s$ n9 R% |7 J; w5 I- q
set-plot-y-range 0.0 ymax
; Y0 k+ s* F6 G4 t- T$ A, k/ _end( E* B8 |! a1 i/ t0 u
) s" D& m( O* L! S9 y: Kto do-plots
% r0 q, r" o+ R' U; |. b2 a9 pset-current-plot "Trends-of-Local-reputation"
. A/ ]# y" T# [1 K- Dset-current-plot-pen "Honest service", Q% V4 q3 F" O7 A5 x% |5 J
end
+ B2 _* z3 h2 e4 r0 r5 T2 ^" [$ D
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|