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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
' X) ^% j: Z& x2 ~. {globals[, ?/ @9 M1 E. M$ g4 K
xmax
6 i- D) c* g6 s# t- }- `ymax
& }3 h& t' s( N& v& h4 mglobal-reputation-list
2 A' `; V- K0 N7 ?( V
. n8 K0 V- E" ~) {5 l;;每一个turtle的全局声誉都存在此LIST中
% B1 o1 k% S' O. d# h3 u- ocredibility-list. z6 G; x" h$ @& A: x
;;每一个turtle的评价可信度
6 h/ t3 [9 J( b( M$ `; t: Yhonest-service# d* a1 P I' e5 s
unhonest-service. s5 L! j t/ X7 f) c: S& b
oscillation1 [; ]3 h) Z* Q2 @1 r
rand-dynamic
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5 w {7 ~( Q8 f, l8 p7 K' x: H8 C% k( m. G
turtles-own[# I4 J' S( b# d
trade-record-all' [. y3 }" g4 h+ w6 a$ B
;;a list of lists,由trade-record-one组成1 x$ `: D7 m9 i; S- Q
trade-record-one% |8 K1 E5 G4 t/ ]- b4 v; G0 O
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
( V& t: ?7 o6 }) l" h/ ?$ U
3 E: ?, |# G7 x t4 f;;[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]]9 u$ f; b" {1 D
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]
& W& {/ |' Q$ w. o: ^7 n/ ^, f, _- Lcredibility-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
; ~6 F/ R" W Uneighbor-total
) k1 @9 W8 v3 p1 M% y;;记录该turtle的邻居节点的数目. s6 [& u- m7 I+ Z8 p
trade-time
2 c8 N! T# ?& t1 a;;当前发生交易的turtle的交易时间1 {$ V. S9 G+ j6 ?
appraise-give
$ c7 O5 F4 l* h8 J0 \: v1 c5 d;;当前发生交易时给出的评价
% |8 @$ Q- n9 Y) U( A# x7 ^appraise-receive" g1 R/ r+ Y5 _6 }+ ?8 {* H
;;当前发生交易时收到的评价9 z3 b+ V- _. B
appraise-time( i. d) i, P8 N% r. [8 s
;;当前发生交易时的评价时间) Q2 S& v' S' |# j, E; t# j7 m- Y
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
1 j3 k' u+ i3 f6 w: j Otrade-times-total
- S6 S5 f' a7 [ O8 s' p3 a. G;;与当前turtle的交易总次数- n) x5 I8 @$ P8 U9 g- M* e! m
trade-money-total9 c3 |+ }9 n! `' J
;;与当前turtle的交易总金额5 k! y- ]# g: L: p
local-reputation
1 G' X1 p% j2 Q( qglobal-reputation) |' ?4 z+ ~' M/ @5 Q$ q
credibility
) m3 t+ ?8 B$ [; [;;评价可信度,每次交易后都需要更新
* s1 J4 U i7 p. [# xcredibility-all0 J, w/ b, C7 u3 ]: V$ [& T, \
;;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
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;;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; }4 j* _. ^ `: s* P1 T8 y
credibility-one
2 ?6 ^, U- f, ^' G; i( x$ i( D;;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
9 R. T" o, H0 w. B# q- pglobal-proportion
- \& l, X& O6 n4 \6 s7 Z) Ncustomer
0 C, j# l/ \' q, y8 H; kcustomer-no
" G7 l- u6 U* N# \trust-ok
6 K* A! A. s6 [$ E2 i, vtrade-record-one-len;;trade-record-one的长度. h: H% q* _2 M$ U4 F& ^* [
]
8 s; o- \7 H' }' K5 r
" x+ F# T. e. G( p8 V8 I. u/ d;;setup procedure
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to setup m6 A( L$ m }: d: L3 t
4 S. p; v+ J, ^1 U/ Jca) K( h X, U2 a' p$ c" H4 A4 y$ ?
$ M5 ^' \1 ?! p& |; M4 W* minitialize-settings
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crt people [setup-turtles]( o" I6 q9 R4 c r: @5 R/ T
$ F1 V- E3 ^) S/ {# m
reset-timer% [. Y+ u8 T- N2 R8 R5 X
& ]$ ?1 a0 z0 X8 s# F! U' cpoll-class2 g4 ]+ g9 m3 w
) b: E0 J" N, B9 Asetup-plots W8 B0 N: W9 J" h
- g1 X5 t1 f; O/ a1 Vdo-plots+ \- M4 J( T- D) _! q" H
end
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; w6 R& C0 ]( Nto initialize-settings( u- y0 L+ }) L9 h2 f2 y
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set global-reputation-list []( ]2 E8 ]" S& g6 N
/ e: z# e. T$ f% p6 Uset credibility-list n-values people [0.5]( j' K# B E+ q g: b
# u1 _, M5 U$ I0 kset honest-service 0
5 U% ^" I- h4 \. k' \( ~& e8 n) e
% N) _! @8 ^3 r: M4 iset unhonest-service 03 N e$ ^: P f5 Z/ {$ _
: g9 w3 J" S9 B v0 l1 g4 Hset oscillation 0/ C3 F) P1 B3 A, N6 k, u% v
- e* ]1 b) h2 B4 |6 rset rand-dynamic 0
m$ h: t+ M4 _) w9 f6 E9 c2 Oend
. ~8 }4 O: Z% i9 H# k4 h/ D6 L2 y
to setup-turtles
% w$ _8 X6 g yset shape "person"
; R0 o6 p5 P/ L! ~2 jsetxy random-xcor random-ycor5 }# `( b2 I3 A# B) V+ [! ?, s
set trade-record-one []: @% }+ h* X: Q2 i3 p* x
u3 o* |2 R$ v3 w3 t' k" a& s
set trade-record-all n-values people [(list (? + 1) 0 0)]
* E* B6 \2 c2 l7 } \6 t" e; ^
7 M+ ^# ^: j) m0 O1 `5 Iset trade-record-current []
" C0 i3 o8 s; ^8 q5 W! gset credibility-receive []
9 h) o7 P* {! X+ { lset local-reputation 0.5
& R5 M1 h6 Q) Tset neighbor-total 0
! y: @4 T& Z; b3 ~: J$ h z4 sset trade-times-total 0
0 L/ v. v) I" Mset trade-money-total 0' q" q' z# ]8 l Z
set customer nobody
/ w5 G; O4 Y7 Z, T) Rset credibility-all n-values people [creat-credibility]# Y: i* Y+ @8 }, r8 S
set credibility n-values people [-1]
* ` u/ p) V$ a' ^ \% uget-color* P& _+ b0 b5 j! |; [
, q8 ^. }2 G! Q# X. A1 Zend
3 ]/ Q2 s/ Z! q7 i/ m; {% L/ V9 T0 E4 ]6 G& @* x* { Z
to-report creat-credibility9 {. K/ }( U$ M# P. u- c
report n-values people [0.5]
# |3 q9 X5 b8 Oend
q4 `& B& R* U( Y
1 C: i& k1 N- K" G, [, Wto setup-plots, |2 M$ X) w, C* i2 X b
6 O# r" w/ W5 d; e: fset xmax 30
# L+ l G* G" Y& `, D3 |, |
* k5 L) Q% o- Gset ymax 1.0( n) W$ R% C0 e# g+ g0 L
% U2 J0 b* F$ @/ g0 A) t! ~$ p
clear-all-plots5 [! n5 p" H% ?4 j4 A% J) v
; N5 K: C$ m+ X! \setup-plot1
/ b s- s0 h% k: t8 z+ U
+ A ]) s: T$ O/ }7 ksetup-plot2, m; s( _0 g4 I' W) Q- y3 H* X$ h- [
/ L+ i# }* ?5 ^ c: Z9 o+ Ysetup-plot3
0 y) ^5 x4 M, c- g9 R1 Y4 uend
8 ?2 [! C7 O6 r/ z7 T+ j1 [$ I9 Q8 f
;;run time procedures
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to go
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ask turtles [do-business]
) E) t! d- I+ W$ ]: i$ z3 Bend
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to do-business " X2 J) F5 o, o8 P. W- n& Y. z. `% L6 `
+ ? ~0 M) ?- j7 M- [1 [0 N
X3 Q j' l1 I3 drt random 3608 d7 V+ C( B! U2 i. x. l n
F+ B. m4 [' Y$ ^. Qfd 1
% B! S8 W( s: l# {2 H6 ]' D$ e$ L* u4 |* K
ifelse(other turtles-here != nobody)[
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_. S# W2 R \% x. jset customer one-of other turtles-here
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4 ]% ?. X- c+ B, ?;; set [customer] of customer myself: ^ Q, d; z' X5 W. t8 V+ W
5 m5 S# {# |7 f% s! Vset [trade-record-one] of self item (([who] of customer) - 1)
. t$ \9 ]- |2 d. P7 G. T[trade-record-all]of self
% N% `4 j( o# {1 l7 m;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self; l/ n0 q6 a$ ]
! V7 D7 q+ r3 g9 y" Q* u8 e
set [trade-record-one] of customer item (([who] of self) - 1)
0 s% w2 w9 P3 \7 K3 \7 X[trade-record-all]of customer6 F) z3 r) F9 a6 B$ `/ l) n
0 t9 x \% [1 O; M/ W0 w" mset [trade-record-one-len] of self length [trade-record-one] of self
4 n: {9 K H6 d; Q9 m+ r P# y
+ I6 e& r+ E! a( b9 N5 yset trade-record-current( list (timer) (random money-upper-limit))/ I6 l+ a' N- g
! p7 R7 e3 S( U7 k* z7 |9 Mask self [do-trust]. e& F- l. m# Y+ n0 y( Y
;;先求i对j的信任度: [8 j$ i* c1 F" b+ C/ v
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if ([trust-ok] of self)
5 J, i9 c; J6 `; [+ {( @+ ~;;根据i对j的信任度来决定是否与j进行交易[) p0 ^1 b1 v, P7 j$ [
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
5 I: J$ j0 M/ ?/ i/ A$ M
2 _* t9 }. m% X. p- g* n6 h# a2 V[
- W, x* S; r& Q! n/ i4 X/ G9 q6 \5 w4 P
do-trade
/ f% H q9 Q1 b. D. p5 O6 I8 ?$ Q8 m5 `/ e' m$ I# c6 }
update-credibility-ijl
3 w, `1 `1 K( V8 d6 |7 ]6 x
5 U. v; h9 l% q4 G }- uupdate-credibility-list
' d5 w5 e% V$ e3 v$ w+ i
' z1 }5 p& t$ u) [- g* ?* S2 e- j0 p- E2 e
update-global-reputation-list: G' M2 V. L3 f5 B$ M8 N2 G
3 {" |) ~+ R. Ypoll-class" y0 A. ]) Y, y, t( j" W I
% Q+ a8 ^& {3 ~+ n" w) M
get-color
8 m3 u3 a, f% B! v( M/ Z% _7 O5 {9 Q# B
]]' r# ~9 j5 _, D6 Z A: `# h4 K; N
- w' O9 J; r1 o- y$ c8 j3 H8 p;;如果所得的信任度满足条件,则进行交易
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[
9 m Q4 O5 M, O) x2 ^9 x
6 U+ p$ m, M9 h5 _# ~7 srt random 360
, c% l* a% d" g$ V1 a) X' a# |; q* ~3 e' @0 O ]8 n0 H* K
fd 1
' X: U9 ?5 T) d1 x, I7 H( @8 |+ |8 d2 c
]
1 j4 }& U" N" r4 z0 y! \
. `" T7 V# W! T, ~$ o% B4 o5 |, H7 @end
7 Y' N9 `4 M$ d X4 N
* L5 p1 x4 O, `1 {' C- }to do-trust 8 x) X- W# c1 Z- P/ R
set trust-ok False
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& J7 Y- s7 }/ t0 N& B( N
# G8 o5 W! X" Olet max-trade-times 0
/ J+ }. s% `, B/ ?* q: Yforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
# h; c! ~& |, a) J0 Slet max-trade-money 0 D, |, z1 J8 Z" }
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) g% z+ ?9 y" h" X7 q
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
0 P4 s( n0 l6 w+ {" ?' o. U! K$ M4 `/ h( a9 W
9 X) x! e7 H4 W7 a" s" H, U$ e3 wget-global-proportion
' `4 M y# ]( F w, mlet trust-value/ J5 R! D' P2 f3 i
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)
7 _6 b& D1 f9 P+ v2 \; c" _! k7 hif(trust-value > trade-trust-value)7 J6 U" C, X# A, o" w
[set trust-ok true]
& a0 T# j+ W& M" mend
4 m0 f0 B$ } ?( b( K+ J( \: z$ n9 l- V
to get-global-proportion; C$ E9 M9 t% D# a
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* ~7 r. P. V" }% S/ d( ?) c
[set global-proportion 0]
& w) n* X" m- }$ c/ r t* X[let i 0% d( L* ~$ w: V- G6 \$ a6 b a
let sum-money 0
; @& Z* o: `) R g& N1 v% l9 nwhile[ i < people]! Y! |/ Q- H5 g
[
1 I' c" _* F5 D0 _, d, f5 g T; ?+ wif( length (item i
* b' ]7 W7 s6 k* U' s+ p) N2 x[trade-record-all] of customer) > 3 )1 B7 Z* D) v- k
[
% V* L& R% h3 g& l. l0 [set sum-money (sum-money + item 2(item i [trade-record-all] of myself))& E, }/ c) P8 q# }# Q
]
9 C/ T$ {7 ~6 E# l6 G]$ m1 x& `! U( u9 L
let j 07 C/ X4 F" O- e7 `# f0 B1 F
let note 0
" S, A4 t6 `% X+ W. Kwhile[ j < people]
7 q; W0 P- G% O[0 n( I& g2 Z9 f
if( length (item i& o$ e) a/ O4 U% m
[trade-record-all] of customer) > 3 )
& R4 K) R' |/ g8 f. d$ Q- W$ d Q) N[( M n; j" F8 ~# s% X4 n
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
) ~( C# S8 T3 i" n[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]% S; n8 P2 {' {* O6 m, T1 o
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
2 x G: N1 F4 R]
8 c" ~ X2 x0 [: k) z]3 q) `6 J2 q" v
set global-proportion note
$ z- ]3 Q- L9 ~! l2 |]' M( S. l* e# {6 I
end
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to do-trade( r4 e) F0 E7 W; R/ Q6 V$ X
;;这个过程实际上是给双方作出评价的过程! {, J" O/ f) T) n5 b; w
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" A3 c% \" g- b' v
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价$ i7 n3 ]1 U% Y4 p- j- i
set trade-record-current lput(timer) trade-record-current
9 N8 U ?, P6 p/ F6 D7 D5 Y;;评价时间) }- O3 U4 \6 B
ask myself [9 q" _) p9 `0 Z5 S
update-local-reputation) Q3 t5 v! I5 X. N) g
set trade-record-current lput([local-reputation] of myself) trade-record-current
; o$ ~0 Y- V8 d& c, A! L: D]/ p' v8 D( T# \
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself3 A1 w3 K' D9 w. ?
;;将此次交易的记录加入到trade-record-one中4 Y9 B2 C `) @3 E5 t5 e. m5 _) R8 R
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)+ R5 F0 L8 D* h' q5 q+ j4 V' Z
let note (item 2 trade-record-current )' J3 W8 K2 p) ^8 z, N
set trade-record-current$ |1 q( }- x* H5 L! e2 E" O& @
(replace-item 2 trade-record-current (item 3 trade-record-current))" @$ q7 u4 _4 l5 M# K& }
set trade-record-current
% P: `; m; N$ T. o5 v(replace-item 3 trade-record-current note)
0 R4 {6 e4 U0 k: i& C$ \8 @4 V: Y; N) A9 Q7 _' a* l3 G; w8 S H
! b2 K& @% e8 q& d3 q' Q' F% E
ask customer [
) R, [( y( ~/ U: [4 pupdate-local-reputation: B/ P2 e2 \8 C% q% e e' o! n# v+ u
set trade-record-current
" T# I5 y: V4 w) B$ ~" q(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ! U* |9 @# K6 _. a
]) M9 e9 [7 p# B5 k
% H/ C! v8 W6 u
+ p$ H! a. O4 O S$ Pset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer* h0 k* ~7 s1 f* T# L; t3 w, p# v
9 K0 Q4 ?9 H+ c( H/ Kset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))+ x' V9 ?6 ]1 c @' n: ?
;;将此次交易的记录加入到customer的trade-record-all中
/ H6 J7 M( L' mend) {, O4 Z: C% x' O9 U6 n
6 f, E/ K5 |: `6 R, b" n. J3 `to update-local-reputation% p' `% L' Z0 [, h9 D5 y
set [trade-record-one-len] of myself length [trade-record-one] of myself
$ u0 m# l3 k4 W' l+ a+ F
2 o _. D9 t- E3 h: @0 Q. R' v% m+ `9 s( K& x
;;if [trade-record-one-len] of myself > 3 . q- G9 l; y4 z. ~! d. I3 T& N; p
update-neighbor-total
: |* p! h, @3 l;;更新邻居节点的数目,在此进行7 \& ~1 F/ f: o$ d* x3 y' `
let i 3' J# ?/ d g+ N; C
let sum-time 01 ~+ W0 ]; v& L6 k
while[i < [trade-record-one-len] of myself]1 a9 W7 }* r! W w' O4 a! {* h
[6 R! |* |+ C3 i7 S8 f0 j, Q- M3 W
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
9 p' v7 G1 d( w! C7 `, y) X- yset i! P6 g9 H) \2 }
( i + 1)" ]% p! y: V( U
]
9 | T- @1 d/ J Llet j 3 u1 E1 D4 ]# `
let sum-money 0
$ \8 t- C! m( qwhile[j < [trade-record-one-len] of myself]
( D3 }+ `7 e5 A0 P$ f: Z/ p' n3 D[
3 P- q% u4 F3 @3 Fset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time) x% B$ i- W& b/ \' p
set j
( E6 H/ p3 S7 \6 J+ Q _( j + 1). K. A4 X' R8 T# C' }9 u
]
; p& H# \8 z* H0 Zlet k 3
: c- ~5 u6 ]) I1 ` e9 O# h$ \let power 0, k% _& H( Y g6 B- q* f
let local 0
6 @, r& }! e- x( f0 Qwhile [k <[trade-record-one-len] of myself]7 C+ A8 P7 ^9 x: C; Q- S
[4 s. _% k V- Q3 j; c5 s" z
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)
7 }% _: ]' H) O. V, Gset k (k + 1)8 _9 k5 F F( K# T8 S
]
4 S: l- X' [. ~( G; @. nset [local-reputation] of myself (local)2 F P! O1 B2 ]; N+ J" j7 X
end# ^8 o1 O& d3 g* a' r
' ], U( h. ^( y, J& t; L6 w2 Z( r# rto update-neighbor-total
( V* o- O/ k2 i ]
& B8 f, `' y; F7 L: |if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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; n( j S. x% V# K1 Y% m. |
end
$ r6 c: A* V6 J5 P+ Y
8 E2 Q; _8 G7 B- u1 vto update-credibility-ijl
# ~2 l' p% t8 s+ J; B+ l# W1 j3 b: `) }8 ^
;;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。3 y* D, @9 l" w* @( ^: t
let l 0
' X/ }8 o* k3 x4 _! _- o4 g# f9 ]. Uwhile[ l < people ]
! C! ^! v0 N1 X% a8 o- q9 g+ t;;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
( a& C" T8 ~' g- I2 D" o[, Q5 f4 T- X5 n( {8 G2 V7 [
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)) }, K6 f) P2 q; i |
if (trade-record-one-j-l-len > 3)
* q# x$ H K! Z/ s" P[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( g2 `1 g5 Z2 y) p5 D
let i 3
& g4 a1 z$ ]$ i5 f' s1 @; n1 ylet sum-time 07 b7 q1 |* m; k" j
while[i < trade-record-one-len]! C; s1 D( f% ]. A7 ~
[
) r% R/ \' F+ i# v! a- H: A; jset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
! F7 E9 Z4 f0 Z# g- P9 ^" }set i: o8 X5 H2 H; }) W8 Q$ i8 W
( i + 1)
\/ I' M0 X4 R6 |, Q+ q7 n0 G( S]
w) @( T1 T8 H0 dlet credibility-i-j-l 0! i/ V& S9 z, @6 c5 o# ~% F4 [4 o
;;i评价(j对jl的评价)0 [- `+ D4 M4 k/ G. Q! S4 H
let j 3
5 O' M* {: E* I$ M: _7 plet k 4
7 c1 g5 ~2 a' Q0 Kwhile[j < trade-record-one-len]
8 M) m/ t! l$ U( }1 }0 i# ^[
C. n$ X4 s c1 B! @& @/ [- ^2 c/ P1 ]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4 {# z8 U6 U: _, ^9 M2 s; u0 t
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)& X( C) k& I0 d% B8 e( Y! a! R
set j' r0 W) c; k' J
( j + 1)
$ @5 I7 J/ q4 b1 ?3 @/ w7 N( }]( G( Q2 z, k! T2 ?3 b
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 ))
' t. C v4 H/ q/ [$ ]4 M0 V" I- ^% a3 `
9 D1 K& W/ c4 g/ x9 S" Nlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ X& M, @ J3 Y;;及时更新i对l的评价质量的评价, \+ y, P" F; x: i! m
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]' C" G/ Q7 ?) i2 {* E" R+ t) F2 u
set l (l + 1)4 Y, r w' R* {
]
# w+ _, f0 p3 j! _end
4 y" V. y' j; o; U0 J# H4 z' a3 i) R) U
to update-credibility-list
9 b3 X" N0 c/ `& o: Slet i 0
+ A" Z) c: p Q; p1 _ awhile[i < people]
3 n0 u& w9 e. C" p. G) g4 Q- L[
X% p, i! y& K; Slet j 0
, F* }9 z- p# {. elet note 04 x1 u! w' r L" Q# Z
let k 0
2 t; L7 f4 M- i3 {;;计作出过评价的邻居节点的数目
$ p! Y5 P8 s& O3 y- iwhile[j < people]9 g) [; V. B) f0 T* V6 e1 L2 N
[
5 q. j D) Z9 l3 {) A* c3 uif (item j( [credibility] of turtle (i + 1)) != -1)
e+ P9 c8 t8 @) g8 ^: ?" `4 y;;判断是否给本turtle的评价质量做出过评价的节点
4 w& O- Q; `3 k; _2 R' P[set note (note + item j ([credibility]of turtle (i + 1)))3 Q: A- o$ w; E: Z+ T- {. `( z
;;*(exp (-(people - 2)))/(people - 2))]4 o3 m1 |2 V1 V5 E" O5 Y
set k (k + 1)3 g# N/ Y, S7 J2 @% o. I' n4 s
]$ f4 x$ h$ Q6 ?! q/ V
set j (j + 1)& `8 ]# P3 f0 {* Q+ m! _+ q1 r" X
]1 N! X1 i% P u
set note (note *(exp (- (1 / k)))/ k)
) [+ F" b4 E9 P2 @5 M8 Y7 Bset credibility-list (replace-item i credibility-list note), {2 h1 ?2 c1 M* C7 L4 \9 j. E
set i (i + 1)
0 K) X" a7 V: N9 A]
4 R0 a: x& ^! z0 wend, t8 J& K& }& w1 Q
* n B* N3 y+ U1 xto update-global-reputation-list
! o& p( e: o5 v& _let j 0
. v5 v& K; Y' }while[j < people]
* H- O* D* _2 U) y[# W/ s" q( d+ f7 ?. E% z2 s/ j* M
let new 0/ D' d' r& I2 D2 ]3 f4 `0 ]9 t$ L
;;暂存新的一个全局声誉
9 o4 _3 S9 U. L1 p6 \let i 0
7 o0 k% K+ J: d% [( B7 clet sum-money 0
* ? n: \, L1 K9 W0 q1 Klet credibility-money 0; m6 C0 _4 } G0 x5 W/ r
while [i < people]: g p: ?, W& v5 g# l, R
[. g* M" U- U" v0 R \
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
+ q4 K% f3 Q' Rset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
9 z: J3 A' H: _, Q$ Yset i (i + 1)% e: O q9 x, n6 K8 W
]/ |* V* \6 _4 ?. \6 L6 h
let k 04 L9 l' ^( E% g9 t% X
let new1 0 m9 M, o+ x9 {2 H {1 i" n
while [k < people]. B6 s; b5 Q* j. R/ h/ n5 L; h" ?
[! L, ]' I2 {3 |: I: v+ A/ I
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)/ ]9 g# j5 ?9 s: h$ ~
set k (k + 1)
3 I0 F" l. v- I1 W. L]
2 l b9 p1 `; V+ b- w" Y% ]' q/ @set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( h( b3 `1 f; N7 G, w, u/ [set global-reputation-list (replace-item j global-reputation-list new) z) \( ?" S$ k7 M Q0 S1 ~
set j (j + 1)# K9 F5 t" Y9 e+ x
]+ c7 H; u9 P+ a1 C! m" d' y
end- Q/ M' W. k% G" V- @
7 Z+ O7 L: K* Y# g+ h8 ~ e" D8 k/ n# E3 f1 G' T
, Q- } _4 b) A6 H& g9 Fto get-color
) p2 t1 i' i! c B: R
- I! r' w/ m1 D* Eset color blue
% u8 T- V: W# Y, }) Q$ Hend
0 ?" W4 B$ t$ A) ~5 `1 ~" j
: c8 b0 o3 I( j1 L3 `to poll-class
3 b9 i _8 ]5 O7 w, z9 eend
% }9 B$ \3 L! H0 V6 b- `9 @# P7 S/ C: Z
to setup-plot1
0 A3 e: K3 I9 Q% G7 o# M1 L$ J- ], ?1 y) d
set-current-plot "Trends-of-Local-reputation", @/ ]& u9 B4 c: \6 V3 B/ _1 H5 `
* a& z2 P2 R0 a! j- e( [set-plot-x-range 0 xmax7 s) i2 a: n( R2 t6 u
- X0 _2 W" F$ X- M/ V$ e' }set-plot-y-range 0.0 ymax8 w' l- M4 y8 z2 k# o+ C
end
) t& p. v' s; V S( O5 K5 E1 _( w
to setup-plot2. V* r' i7 ?2 e+ O, H! p. n) V: W/ V
% c; [5 `% d4 J! |; ]set-current-plot "Trends-of-global-reputation"
8 b; c: l; @2 M, }
/ @. @" U) O) I+ c# Q- S& `set-plot-x-range 0 xmax7 n; ~" J4 j: q L4 y! `% _- [
1 X E9 A9 v* U. h8 t2 [/ m2 j
set-plot-y-range 0.0 ymax3 m2 H2 |0 ^5 E! N" o
end
E% t/ t" r+ f8 T" A4 W. x; G4 |* O8 j
to setup-plot3& _6 x" N" l3 y3 ~( Z$ Q5 U9 E
; Z! U* i( q* S" Y& Z$ Pset-current-plot "Trends-of-credibility"# k0 m2 r, r4 a2 t" Y# [ Z
6 ^5 G4 F2 h( k( } {# }
set-plot-x-range 0 xmax
- x f" \8 e3 V+ I3 C( W& i7 M0 O% x# @2 d/ C- K2 g. w' }! j
set-plot-y-range 0.0 ymax
; M% b0 W& H+ Yend9 c: w1 t G3 x: A. ?1 u
1 [+ B; H' k* }/ ] n
to do-plots @: Y; }: S. K' J' q
set-current-plot "Trends-of-Local-reputation"
" l7 N7 k i( e, G; e; ~' l' @set-current-plot-pen "Honest service"% l# A' i/ ~5 v5 F* T3 f
end
$ K" f8 c& z( v# J( M
1 f0 ^/ h2 k7 L# ~* G[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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