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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& E5 D# M) ~* B/ N
globals[
/ c. n# l; v$ Y7 v& o/ G9 W% w2 Dxmax
: Y) Q" i3 W* Y1 E/ t4 s! H: e9 K2 a, Bymax
& G( k; B9 y( }2 h7 K$ qglobal-reputation-list6 n% W6 z) r* a/ _ }
7 W( K+ Z( [4 t" R;;每一个turtle的全局声誉都存在此LIST中
+ h3 p% A6 c$ O, T3 Fcredibility-list
1 g* b* u' Y- Z- P" R) o; ]! Y5 w;;每一个turtle的评价可信度$ z& a' G+ ]) o: E( N: g6 q9 L A
honest-service
# N" O7 s' }9 |$ H) K5 W8 Cunhonest-service
, P: s* l T- K7 ~: Y' |oscillation
x- T. X; C3 m4 v& e0 nrand-dynamic
9 \1 I0 }0 V3 V+ K5 ^9 \; O! N]. s/ H! N4 l6 {2 {/ W1 O
3 Y4 F- V, P, B- T% N/ C7 S
turtles-own[. J) @, m. A! C, d+ C% i0 [
trade-record-all
7 P G: J( Q% L% l;;a list of lists,由trade-record-one组成
! Y% V! `: m* t# Q" \0 ]trade-record-one
% _4 d0 e% k- ?2 u E5 C- f;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
0 H/ F& `5 c9 Z
+ t* `2 ]3 t# F# z;;[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]]7 D9 ^) g* w5 T! a) w2 m, l; h
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]
0 }2 s+ ?; m- O% jcredibility-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 Z" V3 `# t4 P: _neighbor-total
; o0 L3 X; D/ I) n; i& ];;记录该turtle的邻居节点的数目
; g a( e& y, i2 r% P* Gtrade-time
0 G6 h5 p0 _, t& G, q) v/ u ?;;当前发生交易的turtle的交易时间
2 S* P+ v1 K- V5 rappraise-give
* H2 w: L/ d+ V9 O. k0 d;;当前发生交易时给出的评价
, `, t7 B# M5 v; \6 eappraise-receive) p. t! v' Q& m& b$ ]7 K
;;当前发生交易时收到的评价: c8 y6 f5 k M$ x- |
appraise-time
5 a. g% c* [1 _* a) c3 h$ J# S7 u;;当前发生交易时的评价时间
7 S4 m) r) q% m7 ulocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
( Y4 N' f0 f9 ^ _+ o# N" [trade-times-total
- b. f% W" y! h" k" ^" i;;与当前turtle的交易总次数
+ ~+ ]& t+ k" [; ~9 a. itrade-money-total
) y! b2 w* h9 X# R7 s0 y4 I;;与当前turtle的交易总金额
6 O& a8 n6 x$ E( S0 _( n5 e' Ulocal-reputation& g( z, `: X. }( @9 J( K. ?' G
global-reputation8 W& h' N. l! e& C9 t1 U' s
credibility* H9 f% w! L. r+ X" h; N% n1 e/ Z
;;评价可信度,每次交易后都需要更新0 X- p) Q4 q' v' V( ~ P% o3 ~
credibility-all# B8 w! ]: t: F! w3 n, k, s0 P- y o0 F
;;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
! Q3 ]# o r2 U5 r; r% S& l1 d) D7 A9 S( u$ y/ i/ C: W2 F- L8 h5 ^' J
;;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! M% l: I) \3 U9 ^* u( m/ O6 e& t, D
credibility-one
) Z+ G T c. z/ i% k2 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' ~3 {8 {# N5 v# o7 ?7 ?! ?- p" v
global-proportion
m% z+ F# c# K" P3 L2 Ycustomer% ?6 i0 C6 I) Z8 n. W; x( Q
customer-no
6 P: O) I3 X# ~4 V- Q) |" N/ ]2 ~; ^8 `trust-ok
b+ F! p3 N8 z8 c' Qtrade-record-one-len;;trade-record-one的长度: T7 J) t9 v$ ?8 ^
]7 h3 w' A8 j/ h) l9 Q/ |
' {) a6 ?' N3 |/ f7 B0 g;;setup procedure0 o+ N8 }0 c( H4 ^
U" k& |+ w* K
to setup4 o: ?; v0 L; G1 i
5 ^; g. l5 u& m/ G* [( Gca
* d8 M$ X9 s* {7 y( B5 ?# i( E$ K8 v- [6 L, m
initialize-settings. p b/ e. {" P: e7 ]0 K
6 A. L @0 ]/ i4 u+ |crt people [setup-turtles]
# ^9 A+ A9 Z, R/ }0 M5 R7 ~; }
reset-timer
* ^' `% l F" Y$ A$ K
2 y4 h/ z3 V ]& Q2 @poll-class
1 i! W* g+ e& q5 R3 i' }& D! X/ }/ y; D% A4 k( u4 q! b# N
setup-plots& F* w. \: |- X/ @* M
9 Z! d5 n& H/ A/ n" i! L1 `
do-plots; ^4 o" m3 o- {& @" |& j
end
8 n5 x5 c( v9 d; ]6 C
& C' }, Q$ c7 s1 y+ ^, s/ k% Pto initialize-settings6 E( |3 m+ ^9 O, D8 j+ E" |1 y
/ R8 d! t$ h# r, y/ r3 M; e: n
set global-reputation-list []. F: ^8 L# ?; R0 o9 p
$ `( R$ K" [: K
set credibility-list n-values people [0.5]
4 r8 [9 x/ w. c2 }4 m
3 b0 e4 Z+ i) ]- n y/ S9 iset honest-service 0
: k+ a- F8 I8 a9 |' t% L% H1 k# v' f
{( T+ o' Y; a' z: m9 d9 Dset unhonest-service 0
2 x' r* u, T9 L( S9 f3 p# r; A" ]( M' k
set oscillation 0
# W( z* K" A: s) V5 `
/ p7 {* H% l0 y; oset rand-dynamic 0
, A0 i. S9 J1 D) R# Gend
9 A! \/ K$ ^1 P. W4 {. D# Y2 z6 g- f4 H# F( I
to setup-turtles + d: H: H, d* i2 q
set shape "person"9 d- J/ v* N& e( j
setxy random-xcor random-ycor
6 X( s" J( A- b% \set trade-record-one []
4 s4 R3 ?" s+ g, n/ C4 r N& a4 i. ~) A
set trade-record-all n-values people [(list (? + 1) 0 0)] 0 V9 _" ~7 }/ u% V
8 K$ \8 o7 e4 h% n5 d A6 H2 Y2 kset trade-record-current []
: ?' p1 K+ ?7 i( F3 h. {9 {set credibility-receive []
4 Q9 s7 r' q& F, B- E' m5 _set local-reputation 0.57 ?, m w) r4 f y5 P( I' I
set neighbor-total 0
, K) s( M$ S& f; ^& J( C' _set trade-times-total 0
1 o" e- n/ R- m S, a( u# kset trade-money-total 0- S7 ^# N. H: L1 z$ X( Y
set customer nobody, {' }( ~4 o( j8 h9 W
set credibility-all n-values people [creat-credibility]7 j& w" x4 |" v9 v: M/ X: u
set credibility n-values people [-1]" f8 Z- a7 ?+ p2 J
get-color
: o% J3 O& X5 w% \/ q/ i
6 i4 Q& o/ C% X2 \+ @) {* X9 _0 Q cend
5 R/ t1 Z0 Y# D) C+ ?" B3 I$ Q1 }% h9 s# {6 G6 q# S
to-report creat-credibility7 Y/ x$ Z: o1 R( x) s
report n-values people [0.5]
6 R+ [- o5 r4 F9 d. d' J3 Z* {end5 F9 e* J8 W5 O8 ?. w
3 e1 j0 e) Y6 r- \- ]) yto setup-plots( T3 m3 e% p: Z& B! S$ S
0 m6 H. p- h4 V0 ~! m, a0 A( W8 B
set xmax 30! p3 L% n" k! S7 E9 s
{* L F- s+ Z7 J) J1 x. r
set ymax 1.0
# a# {+ J" W: B& _# I
, I* L5 M' c' S2 lclear-all-plots' @. q" c. e3 j( E
7 ^( u$ v. ^3 _4 o* G- O; K5 ssetup-plot1
: p! s- k, E2 I: |
* [$ U& C& C! a6 }( I0 Rsetup-plot2
0 ]- h0 f F4 M7 I3 m7 d
3 l% P" ?& Y' q: @2 asetup-plot3. @! I& \' ~/ `% i5 w
end/ J$ ]4 A4 q3 d" P4 v3 |
9 ~& V8 }- p+ u1 W3 G3 N2 k$ f
;;run time procedures
/ X5 h, P* a' O. f9 |) _$ m% ?
4 @* }, ~6 G8 |8 Q' zto go
- b" L+ I: Y* H. U( A7 F2 ?0 w- V8 E7 w+ {. V* Y5 M/ `" r
ask turtles [do-business]
$ S8 M* }- f: \; r* pend! v! E+ h. y; _( |+ o8 M. N8 R- v
! p. l* }0 ~ s5 Y# p/ N: s6 S
to do-business
, |5 C: n5 C( v9 \8 X# p) @4 m% k7 ?2 j" Z2 O2 {0 }. T8 B: R
+ R3 V8 S$ k) w, v& L
rt random 360
) M1 b5 v! j, Z2 m& L. \2 ?: C$ X) b+ p% U. b( `
fd 1
6 b- h/ o D U. E2 Z4 Q! U2 ?& w- B
ifelse(other turtles-here != nobody)[9 [* r" e6 @$ p% ?1 O" q
) ^( \1 H1 ^4 a7 F' Vset customer one-of other turtles-here
- `: x( Y8 L& Z- L5 G, T" j+ R' k' E6 j7 L. _6 k- A& e: @' [
;; set [customer] of customer myself$ j# e" E, \- r4 a$ u
8 U, S. Y$ x6 q1 N) z) W9 Q. Fset [trade-record-one] of self item (([who] of customer) - 1)0 e0 L9 T- Z' y+ ^
[trade-record-all]of self
7 \9 _6 L7 B: E6 L% ?;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
7 v, D0 T2 S# H1 ]/ \# n* y- W( l! k+ \ x, J& C8 H
set [trade-record-one] of customer item (([who] of self) - 1)
2 H- P$ h( P X0 ^/ k, f[trade-record-all]of customer2 o6 t9 w. @( e6 S: k- s
2 K- e" t& ^6 N9 b5 H% }4 H( {
set [trade-record-one-len] of self length [trade-record-one] of self
/ C6 J6 P5 q- F* e
+ P4 o6 Y4 M% }9 F j( Uset trade-record-current( list (timer) (random money-upper-limit))0 H' T* B0 B& J3 R! y
; O% r& ?7 u( Z9 G/ ~3 D- b
ask self [do-trust]0 I& \$ h" g1 B2 R
;;先求i对j的信任度
# `7 c7 |+ V" ~" p* E6 Y: y3 |+ f* T3 H' B* g
if ([trust-ok] of self)- y# W# J- T$ \. |: p
;;根据i对j的信任度来决定是否与j进行交易[! \+ B8 `6 w1 M5 n+ o
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself' }' m3 N; b4 O( u& e+ P& g) c% U. O, J
( l; K7 m7 D( r0 e7 i% F6 W" n[3 o& E! B. d o0 D2 m+ O0 P
/ l) L [1 n$ z; O s8 R8 `
do-trade4 ^$ W4 c! |- _( ` M
+ [' S. y8 p0 wupdate-credibility-ijl
3 i* S" w0 k: M2 X2 `6 p( S2 T! x
3 J7 F$ S% x8 l/ ]9 ^update-credibility-list" m. y1 j$ n8 M' u
' G: Q7 [; i$ |* U, `& x' t
/ @' T* a- h6 nupdate-global-reputation-list
1 T& a& {* a; E6 C4 ]$ x4 {& R7 n3 W) i. i/ w( H, F" j: F
poll-class
/ v' Q( @# T6 W+ u% u L
' w! y7 s) h4 f+ X2 L! l2 m* pget-color
/ x% `; i! D& ^8 W$ t( Q ^( O
: L6 _0 q+ Q3 n- e7 m/ U: _]]
& E# j: i5 k+ z4 S" N9 i# T1 S; E7 A2 U l
;;如果所得的信任度满足条件,则进行交易
- p9 ?. i* P3 t) b" }
1 @! w% L- t1 A6 t8 S* C/ I[$ m% B4 Y3 Y/ w* `
7 p9 ]! H6 S+ E1 V9 E( xrt random 360
/ U$ a- T# e! K( ~! k0 l% Z1 R2 K% v2 D% ]# t
fd 1
: ]0 Z$ q+ T) g7 D
) p* w) \9 d {6 w]* p% N" H& E! C6 p
C0 `# x# G1 H; j" L. p; Iend( G% z; d$ h3 w; @; C1 d: J) U) v
' I5 u) T3 P$ n: o) y; p+ j2 v. x, B) xto do-trust 0 k- f, {8 A% C# _
set trust-ok False
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. R7 f5 G# w) ?+ y' W6 H5 \6 I$ m% X$ l: u- r% |. a# ^/ {
let max-trade-times 0, x% T" O) h; n6 w' _8 |. z2 H
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( q7 p O5 X5 \ F8 ]' ]3 U' p
let max-trade-money 0" l- O9 a8 O2 L8 W+ D
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
0 K8 \: T; m$ b1 `let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
' o) x. U; u! Q4 l" f4 ~: [ w
+ f$ s0 s' e9 N# H I
, P- w0 ?* s! a4 j+ [get-global-proportion- L9 @) I. ]$ @. y8 k! Y
let trust-value
9 o7 ^% z" W' U# w. e2 Zlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)6 g/ g9 `! c" n+ \ d! P8 a& w
if(trust-value > trade-trust-value)
3 w& A- k( y# Z& X6 ]: l[set trust-ok true]8 V& R7 s- i4 L
end' F! K# Z2 K% K' J
' u# R" Q- D" B6 [* w# x/ Lto get-global-proportion
/ T4 K) t3 ?% v bifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* T; @* |5 _6 ^0 F
[set global-proportion 0]* \6 r W. ]5 l2 n: T b$ b( \4 a2 I
[let i 03 X+ a, H; a4 E% W) y
let sum-money 0 {' f1 z1 b- ]$ N9 O" f
while[ i < people]
7 I1 U m; g4 v! y$ h1 Z; `+ h[5 o1 {1 P+ `1 q4 s! l, H: p
if( length (item i
- s" g1 X/ L8 F# M5 V1 r6 O[trade-record-all] of customer) > 3 )/ D; r* O6 Y5 Q0 N5 w$ f `
[3 e) K, a* y% f5 N0 L8 J# F
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 M% o$ S% Q- Q
]" L2 h1 c, P" p0 i! c
]
+ [4 m/ N0 L9 J5 Zlet j 0+ d7 D0 P: O4 J5 X0 @# ?
let note 0, N* n! v2 X# R! P
while[ j < people], R0 c: \/ m$ |( {- O0 r' q
[9 l3 E7 Y3 [" w5 L! U
if( length (item i1 u) s$ l! \0 {8 @; _- d- e0 `
[trade-record-all] of customer) > 3 )$ \9 r; q" Y1 f/ c! ]
[
9 z0 a: x9 f* @: {& E- z* Qifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
! R- }$ w( l) z[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 g0 m. }+ ?; ~' G
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]3 `. G; F, A' n' T0 r9 ]) L. [
]
( K0 i; O! q; t& M8 ^: Z]
1 q3 A% ?8 ^5 i5 E. u6 b6 |) [/ B3 Gset global-proportion note6 y4 \& c h- I' Z* R! L2 S7 |. O
]* {5 p# e; i4 C1 B, W1 B' R; v
end
3 R$ S: W8 y9 a5 |8 U: i( z- s5 t* Y; R* l7 U# G
to do-trade
8 r e( ]8 I2 f- k3 M" D% t;;这个过程实际上是给双方作出评价的过程" M4 m2 V: c/ p6 |
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
8 T0 N% X3 i: H; Eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
0 P* r+ U1 J% q/ |set trade-record-current lput(timer) trade-record-current
( I& |. h d, d( L;;评价时间
+ a7 r4 e6 M; q8 Qask myself [6 a# r6 T/ r0 w
update-local-reputation
) E/ o1 T. d. Kset trade-record-current lput([local-reputation] of myself) trade-record-current- Y9 |& ^6 j5 V& s* h8 k1 c% K
]
7 L! D$ B9 g/ m+ ?set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: D+ ~+ i7 |6 D: m: n
;;将此次交易的记录加入到trade-record-one中5 A- x/ F; h: \$ Y8 W1 M) |6 o- a1 L
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 x3 S/ M0 m# ?: w" i3 n# N% K; t4 c
let note (item 2 trade-record-current )
6 P7 F( ^) F$ s9 _set trade-record-current
2 V; t: s% w+ S" x( |- `(replace-item 2 trade-record-current (item 3 trade-record-current))
4 U' A+ O) g2 k2 aset trade-record-current# w$ P5 D2 N4 s6 H6 P
(replace-item 3 trade-record-current note)
$ T g. u) C( G6 i
3 @+ @7 E& l x# S' a0 B: Y. z
0 ^6 H9 I0 W _9 N% J L& Uask customer [0 y3 A* G4 ?& R! V
update-local-reputation
, K+ R7 ~6 }+ h* Vset trade-record-current k) ?8 S/ ]5 ?
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) $ k' s! J% V3 e3 ^5 C+ \! a
]
$ C( h b Y o [8 d
# n( X; y. x- u2 S9 J1 V! q
7 j. C+ j' d/ z& ]2 c- x0 w4 rset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
& h( k8 b( `0 Y9 V$ v. i8 j( {) W' r+ z$ q6 Q
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))* J4 I% F: b6 r
;;将此次交易的记录加入到customer的trade-record-all中
! f2 P9 g* Q3 o# G) lend% Q2 n" |2 i' C! t+ g; ?. }
9 a" n; {* k S9 d) T$ ^6 w. o9 l: ]
to update-local-reputation
1 f1 u- R" j0 |5 C2 X3 J) R" Sset [trade-record-one-len] of myself length [trade-record-one] of myself0 N: P. A6 L5 T( ^6 t0 B5 t! G
& e4 t1 s/ F" K8 g9 P' q6 \. V3 P( O% I
;;if [trade-record-one-len] of myself > 3
1 \8 E" F% I% V; a9 {update-neighbor-total
* `$ g: W, w; j2 \, S9 k1 ]0 j- S;;更新邻居节点的数目,在此进行5 Y( U1 a* p* s/ U6 Z) v: z
let i 35 D- ~/ g/ W; J: T* \# t) u
let sum-time 0% Z" p. c1 b) N
while[i < [trade-record-one-len] of myself], L+ |1 X, f* \$ @
[% A8 ?1 ^8 n @4 {
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), H& O* j4 j3 I1 b" y \
set i
; a$ l% m6 N: B( i + 1)$ _" k9 {; D0 a5 J7 M
]2 h' `2 r! R" l w7 m7 M" I
let j 3
8 w7 P- m K3 n, F" M$ d( X* z7 n( R, slet sum-money 0
* L* m Z; z0 E% k3 H' C5 Z% Mwhile[j < [trade-record-one-len] of myself]
- W h0 ]7 R* B# M2 `[
: \* [& `1 y/ _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)$ c5 ~& F6 k/ g
set j
, [3 ?! {) P) O3 F5 e" S( j + 1)% M, u* A3 K5 g5 P" I' @
]
4 s( S$ Z" z! e7 D3 llet k 3) S7 `2 Q' u% \) M0 F
let power 0
0 w0 _% v: i" Y2 |let local 0/ Y5 X8 ~% z( |' d" O( J; Z
while [k <[trade-record-one-len] of myself]
) ~7 r. a) \4 I[
: [; ?& l# W) P, b9 V+ ~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)
" }4 B1 |. y' N% `3 ~set k (k + 1)
2 N& M& S% ~ \# g j% G8 N" K]) S3 P7 g! p+ e" m& ?6 a0 A1 b$ i
set [local-reputation] of myself (local)9 a0 F) b: H6 e- F3 k. I/ f& e
end
4 d" ^, @4 W+ X! I) M" P
& g* B2 F1 s/ {% B( C- }to update-neighbor-total
, k t9 g" H/ R% v* B) Q
z+ z6 f; k8 vif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ {8 I5 [. j A0 t# v
+ U* `" y8 d- ` S4 [# E& U
- I" b0 j" Z1 o( |4 U" jend" q5 a/ t! X0 k
) t4 e2 n6 C" h
to update-credibility-ijl . F# B' ~! f1 G; y3 p) @$ w- B$ {
. U# |0 Y4 e, R;;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。7 ^ N2 d6 H, c& f: Q& m
let l 0
# g) l+ U5 Z5 S( n0 Hwhile[ l < people ]3 W, t# b4 D4 O: n: |
;;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
; W& l4 F& ? m+ m9 H/ }[' K' M. C# z* J8 e
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
: ~" Z2 T9 G, A/ }/ tif (trade-record-one-j-l-len > 3)
/ p3 d' P+ s; V2 T1 h6 s[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# m( d. ~; K( u/ R& O/ T
let i 3
# ?* I8 D: x; l9 K- A+ q/ w2 \! plet sum-time 0
: t8 W0 ?$ j+ @0 }" S* Pwhile[i < trade-record-one-len]
. @8 N% f' p6 j O3 ~: P2 F& i[
4 ^. A$ m* ~5 N- {7 a. L/ Eset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 X, x; y# H8 t! h6 J' a |
set i
8 C+ o8 ]- s( A- x8 @( i + 1)
3 y2 D+ ? E+ ^( c- g; x: K]
2 b m; {3 D+ plet credibility-i-j-l 0
. h2 S3 H1 X* g4 _1 {9 t; {;;i评价(j对jl的评价)8 O( {$ o/ ~8 k) f, _; l3 O
let j 3
, v3 y& t( U! G: C8 @let k 4
2 M* C9 K- f- _" x. Jwhile[j < trade-record-one-len]
% I. q8 {6 ~* r4 k8 r[1 A2 G! ^# Q0 ]% s6 {
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 ^9 h' n5 f1 s* I6 n6 b5 A- w/ y
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)
" E' J0 J8 M' p( u% C. Vset j5 V1 U% a* W2 u3 r1 O
( j + 1)
. A" S$ `" W5 T' @% |]: f c( b9 ^1 T, ]+ A. F
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 ))5 p6 L7 H$ x) g! m! H% n
; ?- |& h: o- Z! m6 P) G7 `
% Y" F# ^! `6 {. k, l3 flet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
& [, d& [3 h4 U6 N' I, N" ?;;及时更新i对l的评价质量的评价" _- o) D7 I3 ^, J/ R- ?
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
: ^7 D4 F0 e: S8 V- A$ i# B# `. s. Xset l (l + 1)
9 f" d% X+ e" P' L4 ^' M]
/ N5 ^8 l2 I$ M, o# J& b" X2 L4 Nend- Y# s0 h( Y. R3 m, W, f
9 W5 s& ~0 T/ V6 N7 ]- Lto update-credibility-list8 U) d8 x( `2 d, k
let i 0
+ R) L( v% t3 [& hwhile[i < people]$ [) @& }" N" I# H' w) Q0 a
[, q1 H. Q, \3 K7 `) t
let j 0
9 G- @' D4 Z0 ?. M. v8 ~, Wlet note 0
6 d% ?0 K2 }7 X' k2 l: ]. u- @+ ?let k 01 F7 G& G% p9 G2 P+ l4 b
;;计作出过评价的邻居节点的数目$ Q' r X- w+ l
while[j < people]6 y) |! x1 p K7 l+ y }, b* Y+ d, t1 o
[3 n$ D- ?. F) }# Z( U" G9 Z
if (item j( [credibility] of turtle (i + 1)) != -1) D6 P' {9 q5 i4 e g$ y
;;判断是否给本turtle的评价质量做出过评价的节点2 ^6 n9 Q1 W- M
[set note (note + item j ([credibility]of turtle (i + 1)))
/ T! Y) K6 z5 R9 F;;*(exp (-(people - 2)))/(people - 2))]
' _) J3 `- N1 J$ H; M* bset k (k + 1)
; j. _8 z& x/ s" \# Y: j6 \]* g9 `/ `/ V9 H. l) N4 T2 q; W
set j (j + 1)( C7 I; Z; X/ H/ F( d( n1 E
]9 Q6 f/ L5 O+ n) G; {
set note (note *(exp (- (1 / k)))/ k)/ }; m( Z' R& s6 G ~/ @. @
set credibility-list (replace-item i credibility-list note)
7 h4 r" M5 C/ s8 a% N) i, _: j3 Sset i (i + 1)
. A2 C: }* g6 s, O% j]
6 Q/ v! K2 ~7 T6 }. J9 \* Rend3 B2 ?% Z4 ^, _. {" Z
; f; n4 @4 ~" m9 q) `# Kto update-global-reputation-list9 E$ \8 O: D( T. `3 H& J
let j 04 x6 A5 Q6 C* z
while[j < people]! L; H: `5 E7 g S" F
[ S: u7 F8 R- ]3 I8 k D
let new 00 ]' H$ k% W. Y5 ~! V
;;暂存新的一个全局声誉
+ ]. Y$ l4 ]1 o6 R: U: slet i 0
# `1 T3 K1 ~. L7 E% j+ W! j6 I+ A6 Clet sum-money 0
+ Z* O7 ^- a. m ], N0 mlet credibility-money 06 v9 n2 O2 T8 ^$ A
while [i < people]( m# m; m7 h/ }% ^: m' v
[
- p; Z* K7 z+ ~# I" |5 E# iset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))), e- j; W/ e4 b1 I9 d. k7 [
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))5 ^! K7 m; J/ Y! }
set i (i + 1)
9 H, r- T, |0 B4 b- I# E]
) Q* b& b& q" l4 s; F! }, r1 [let k 0
' `! r" ^+ @" c6 O3 slet new1 0 Z1 A+ d2 H$ K+ t* L, M% R J
while [k < people]
! e+ k; E' {+ l4 T( |[" D1 I( g% Z" x& t8 `* T
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)
$ U& c, Q, c1 j. x. p# Vset k (k + 1)+ i! B2 T8 }4 q" A# J3 ?' r
]8 Y4 T& A9 m1 Z8 _( N
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 5 g7 E0 Q( g# T `' Z4 v" d. z
set global-reputation-list (replace-item j global-reputation-list new)& s/ x1 }7 F7 w7 |8 E. {
set j (j + 1)7 R3 S% V' q9 k" F% }7 }' d
]
$ c. C8 f! m& M+ zend2 ?0 ~( ^( A& S1 P
9 `8 i, p, @, D1 n# r: q
( Y* B+ w; D6 Y4 g8 J$ A3 Z( u) r2 d" |, Y5 T$ i' u
to get-color
+ c0 g. Z4 Z @
) Q. G$ g4 t" Bset color blue
' y. o( @1 ~& `: bend2 K2 L4 X* j& |& @. K' ~
' F. y7 I& y; j( j; G- e
to poll-class
2 K7 F/ m/ M4 O. ^% hend
/ F: |" |' L3 D+ j
8 A Q7 W4 J f: _9 m$ lto setup-plot1
8 V5 g4 |$ L c! D) ~( n4 o7 Z2 O( W) E1 s ]
set-current-plot "Trends-of-Local-reputation"' P( e7 |6 N( E/ M6 r3 ]
( o2 x+ {3 E$ R% p! B
set-plot-x-range 0 xmax) w/ u( w( U- e# r& M! t, S" P- Z8 z
3 V- e! P/ c4 {0 H5 \ {% ^& m3 o- i. Tset-plot-y-range 0.0 ymax
. o, f2 e$ J* W1 qend, t1 z9 m1 C0 Q5 d- t, {& v
: ?/ T! P `8 m4 p
to setup-plot2! c. O5 b% g$ H+ c/ b- a1 o
1 s Q/ j+ {: u0 B7 q, y% d
set-current-plot "Trends-of-global-reputation"; [+ m: a+ X: b5 S& o. c
! Y, ^3 J4 e0 I( \
set-plot-x-range 0 xmax
5 J9 G9 p) j/ N* X
: s. j9 H* ?- z2 [/ ?3 nset-plot-y-range 0.0 ymax
, N0 l* g% ~9 o" \7 ]6 `; Xend
" X7 }) o0 D9 v0 s1 I" [3 h- a
. h7 y' W$ {& O% k3 N! P+ n6 h/ K. ^% nto setup-plot3! [% v6 q j* {( `8 e% t
- B9 H: @" S, _1 U/ eset-current-plot "Trends-of-credibility"
" x( I3 v- P/ G8 u5 Y$ D ?! A3 N6 X2 Y+ }0 d: J# g
set-plot-x-range 0 xmax
% C3 U) [) @/ n' L8 ]6 D: f# t9 @2 b1 G
set-plot-y-range 0.0 ymax( p" u& v* R! A( ]" e: j* V- h
end
/ j, x: L) i0 @9 {, O: Y# l+ V$ O+ [
6 f- Z4 r$ h5 c+ @to do-plots
) E& y1 d! i I" L7 Bset-current-plot "Trends-of-Local-reputation"
5 {* z" B2 c: O) Nset-current-plot-pen "Honest service"' _# a1 @# q1 E9 D, Z
end0 U& A, s& s1 }: m
; S/ {( I; k$ I
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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