|
|

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: C& f# O: i. i8 W2 m$ b
globals[* k4 Z5 K/ X* a3 k; r& O
xmax7 T+ T | z9 z s2 j6 r
ymax/ W/ i$ _0 h8 I' a$ {' [" u4 b
global-reputation-list+ n$ u( u% J% Y/ `
7 ^6 O5 @5 z" S ^& s2 x0 x6 w5 `
;;每一个turtle的全局声誉都存在此LIST中7 @+ e% y a& B) ^% w
credibility-list- [4 e0 Q( K# U M/ b
;;每一个turtle的评价可信度( |8 R2 C, A3 Y
honest-service
4 { r* Z& o& l. l/ ounhonest-service
4 ?# A9 O( w5 j* P0 c! I, {* }9 V$ @oscillation
- M& R' ]! v; R) Y vrand-dynamic8 V; E( P: j7 y0 D! z: ~0 b
]# E) d4 G b1 ^ k& w6 [/ ~( D
2 s+ F7 v, g- i, G
turtles-own[5 ? p* R# ]- q4 Q5 {
trade-record-all
$ V; K0 Y% B" n; p- v! o: E* f;;a list of lists,由trade-record-one组成# _2 r0 g* m7 \( S9 H
trade-record-one
" X; p; E4 d1 l; x* u0 v' 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
/ \! y! M8 K$ Y, u
( i2 ]# }( V) ]% k3 d0 Q;;[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]]
# R F0 G& \; Gtrade-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]
7 e6 {$ B3 N# v% a2 ^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
8 K" ] h, s& `3 |" x, A0 U+ K T: xneighbor-total. P7 M7 y2 Z, _! |/ X
;;记录该turtle的邻居节点的数目) l8 c C' P( p0 P' x* X6 G
trade-time
" V7 j+ {' y3 D; _8 |;;当前发生交易的turtle的交易时间
1 G9 i, O) _( }4 T5 q8 ~appraise-give5 a5 r6 i- D, j7 v' z. o
;;当前发生交易时给出的评价
7 {& Y; S. j3 z% i1 ^! r- Q' jappraise-receive
- `4 G4 ]/ e1 J4 f;;当前发生交易时收到的评价! F* B8 @% g$ z1 }+ G/ s" z3 [. k
appraise-time _. s/ L# O/ D
;;当前发生交易时的评价时间
, Y3 @3 X; R: H4 mlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
# Z: d" l5 o5 C) O6 n3 Itrade-times-total
1 Z# V: C3 Z9 N0 j4 E& O;;与当前turtle的交易总次数# v: _& E+ z" i. R; J
trade-money-total w5 N F" l" S# O$ u% V- z
;;与当前turtle的交易总金额
m. W9 a2 P% r" Rlocal-reputation( x! l% w5 b7 p5 l! \/ h
global-reputation# V/ k) w0 k' `4 W
credibility
# B4 B$ [7 X5 R. c;;评价可信度,每次交易后都需要更新/ L" N2 | D) R6 v$ e8 T
credibility-all
% D4 q' C' K% z0 v# K;;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
9 G6 J( w F7 |4 @7 l- k: S: c* w" e- b
;;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$ J4 i4 I$ e1 P, I5 j, O$ `
credibility-one- d M0 M# q* w A; N
;;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 ]" b8 U m* i
global-proportion
8 C. G5 ]9 r# U0 O- i; |customer x( H* j5 `5 H: P! s4 U& I9 u
customer-no
7 w( ?8 R- k- k* g# O" Ytrust-ok4 l* s4 O0 x2 j8 q& l
trade-record-one-len;;trade-record-one的长度
D$ ~/ z# S. p- o7 P]
& x' p9 f7 _! R" z2 m" l K
7 k: L x% f8 N- N% u* \* j" ~6 k;;setup procedure+ t) {8 h3 T0 ~$ |
7 R; H _/ r N$ V _- ?; c. \3 g
to setup1 O u7 @" }# @, m; O$ l
' [3 h% a8 ^' t l
ca
* M, k2 W, A; q: s# u( I& J/ G, e; N" x; U, L5 R9 a# [" l5 {2 h, s" P
initialize-settings4 ?; Y% S' t6 z+ Z0 {+ S
! V6 ^5 s5 G; e8 s" s7 k7 zcrt people [setup-turtles]
1 q7 ^; R) Q( Y+ O4 D& V# j5 s0 ~: }
reset-timer# D; @ u$ m; ~) h i' X
1 A& z M; Z3 U* G# l' W8 Bpoll-class+ P. D% V4 l T+ D8 T, K
; u6 A. h% F( ?! w5 p
setup-plots) J6 r/ j* S6 }* |
) Z+ {3 f* b0 M Edo-plots
6 i/ d% v( @% @2 y' Aend3 c$ `# q# F* i" `! a: z$ f
, W% J; L/ F+ n6 j# }% A% G6 G& Jto initialize-settings" H# o: q3 c' W+ I- ?
$ K/ h, Z: Q3 d; o# j$ A/ W/ yset global-reputation-list []$ K' C8 t/ C: v. l7 y0 d
! _% ^& a/ P: B# h# D- n( [set credibility-list n-values people [0.5]+ t7 ?" z% k Q2 C
( V$ t' \. A; p3 F% C
set honest-service 0
! d$ B: u9 ?$ {3 y: `+ ?# y& A/ D
2 {, X- C7 d1 R1 b3 P Aset unhonest-service 0
+ j" g3 m* w/ z! T/ w6 ]4 M, z* O! m, Q) `- p
set oscillation 0
5 Z5 I7 X/ K# T7 j& Y0 Q5 ?' r3 W( l& {7 P4 e- N5 ~
set rand-dynamic 01 o3 v) n7 O5 h' B9 |# |
end& _ G( Q L& V C' c
& O+ a/ D* J' g# U; k7 f7 Sto setup-turtles + U& z5 G" k5 \! p7 M U
set shape "person"
4 _9 l: M$ a3 bsetxy random-xcor random-ycor/ w/ R7 m/ ]$ R6 {
set trade-record-one []' n# n0 D5 S/ l( G
: ?4 k/ b5 A4 q! g* U
set trade-record-all n-values people [(list (? + 1) 0 0)]
) r# H. k3 t5 h l' k* R$ d" q4 B4 b4 I$ E, {8 I+ _
set trade-record-current []
) D2 S6 ]9 U/ T5 [/ @( z' `set credibility-receive []& F3 _2 j" k( h! G \
set local-reputation 0.5$ L' V2 J( q4 E" P& i# |: P
set neighbor-total 0; n8 f8 s* s& F$ O) B ]' H
set trade-times-total 08 v7 L" { [) x4 L5 U+ r" O
set trade-money-total 0) R' b- L6 t" [$ c
set customer nobody* M8 g7 |: C' K- F' U
set credibility-all n-values people [creat-credibility]2 K% ] T+ [! x; X9 ^3 x7 \5 n
set credibility n-values people [-1]& Z1 g% k& f3 b
get-color
7 e0 y- c# s& j; b/ n
$ z0 Z8 r/ P& D! J; T7 ^/ {end
$ Q6 ]& I: H/ a$ v; M
3 i3 B$ {# I1 ]. rto-report creat-credibility
4 ]: F! r, t$ X; wreport n-values people [0.5]
% s3 }1 ^2 D T: ]$ nend
* @( w- F% _0 p" V* {" o' `8 w \/ |: c, o. L" e$ X2 v9 Y- O
to setup-plots0 V4 Q- W& R# x/ L
6 r# k3 D' Y9 k8 q: _
set xmax 30
$ J/ G% Z4 b: d! y2 l
* t& H/ O& u/ Y8 O, R; Bset ymax 1.0- t* P; p$ m& m& }! F a
- b6 ^: d: J* t4 `7 o3 S, S' Eclear-all-plots. \- t5 E- o2 A* C, i2 B( I
/ ?- [: ?7 z& ~- G
setup-plot1( s, R9 Q! f/ C+ ^$ u3 L. o6 i
& o X9 P4 m: S! T" isetup-plot2) Z0 v$ J0 D& P: f4 b H( H, ?# A8 W
# U& a0 E3 Q3 S1 P1 |2 l, M7 w
setup-plot38 j. [1 R8 ^0 ^! f9 g( H
end
, k( R4 I' x8 t) F, P! X0 g L5 ]! Z
;;run time procedures
6 o1 r5 X' H) z, H
$ G9 g g( ?* l9 Sto go3 E" I- J. H: y) E) b" A& `% Q
2 z5 `2 k4 M" y3 W) s
ask turtles [do-business]8 r5 z9 E/ F: E* p+ J
end( X8 A, q4 N& C& \
. j: S7 U& l# x% d3 `$ I
to do-business ) }2 \7 b) e& E* D2 A
1 E2 Y! d# K8 p" M2 B% {6 V9 n# E5 {3 h. }3 E& c J i
rt random 3603 G+ @& S. V4 ^# p5 y
/ T! L# v' u& k$ \1 `; B2 Ifd 1
* }+ {; ?& }* _0 K9 L% }( c; e! y# m! [8 c( \# W: ~. T- M! d
ifelse(other turtles-here != nobody)[ G& n2 d( r9 L
) C' y/ y* c) H1 s, a
set customer one-of other turtles-here
1 d5 M7 ^9 | X5 n) K* P
$ R( V, R/ N& u+ M;; set [customer] of customer myself
. v% m. m8 r' l1 F+ q
/ L" M! ^; u5 ?' B' Sset [trade-record-one] of self item (([who] of customer) - 1); p! C* d: u" X7 f% m
[trade-record-all]of self; h6 N8 L9 A) r% A# m
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self; g5 ^, Y! b* }/ ^7 s
' Q( w K+ x: p7 Y# R6 d
set [trade-record-one] of customer item (([who] of self) - 1)
3 C5 x& A+ t) ] H4 g) V. S$ A[trade-record-all]of customer
" E9 w) J9 S( ^" t: M, Z9 C, k
( U- j' R) f5 Iset [trade-record-one-len] of self length [trade-record-one] of self* f: M: z7 j+ J$ D% |
. N" y \3 c7 }( v
set trade-record-current( list (timer) (random money-upper-limit))# g1 l8 _+ ?: G- B& S: p5 p/ x* [
0 w& U, ? S# D* J+ Z4 Eask self [do-trust]
- }; Y! k3 \7 Y; i+ u;;先求i对j的信任度
2 _6 G1 }# _1 ~
& l K9 c+ S! m7 a/ lif ([trust-ok] of self)
% o( a4 `" T0 }6 d7 m;;根据i对j的信任度来决定是否与j进行交易[! W0 m# |" w' y. I/ A( R1 E
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
" ]7 r) `! d- r- ~+ i, _0 M$ {
1 ?8 n' D9 u: z5 z[
( S3 i* K- n3 D/ L- R, f" v* L$ q7 t( U+ T/ _
do-trade
2 n8 X5 a$ g' C
5 V# C- M2 K% Q% Hupdate-credibility-ijl
9 L" u, Z) g# o7 @, s/ v7 h# @3 i0 D5 i
update-credibility-list/ H0 O7 a: e+ h8 R C2 U
$ g; L: d: ?. q6 a9 q. c0 V
! d0 |; {! R1 i4 q5 ?* iupdate-global-reputation-list# _* `+ H: ]' l6 y1 z( W) D
! P" g% p5 Z E- F& r* L+ E% k6 Z& Z
poll-class
# [( P, c* q5 l2 O# C( L) O, r$ K" L; w- h$ k/ o- E& @3 W
get-color
" X- F; ~' [* s+ u, j5 G
$ o$ {: S' C+ m* k5 O" b]]; F0 p. M2 Q V( X6 q
9 `% t8 t" x$ w3 Q. Q* a- L
;;如果所得的信任度满足条件,则进行交易0 S4 H* w/ Z# D( d
4 j, K; Y9 l% R) D
[) X& P: D$ r; {6 O
* i3 P5 k8 S: M4 W9 A
rt random 360
7 G0 v. g2 E) a3 f0 n. F* C* I/ V0 G% Z
fd 1; H' Z/ s+ R1 m* Z' V" p& | c
" [; b1 [) O7 s) Q
]. f8 }2 y' I0 ^- c& b0 K, z# d1 _
0 L- X- Q- _5 @1 o
end. Q/ d" v4 x0 h+ c
; }9 ~! @& f6 R( T
to do-trust
) c, j8 `7 ? t1 I+ s- b& tset trust-ok False9 B% v; ~! n% K6 A
' o" Y! Y& H! j3 J5 p, n6 u, w/ _# L& E: w8 G+ U/ ]
let max-trade-times 00 m2 I, [1 y& V4 d, y
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
: j: n7 F' w' D4 e8 s% K/ d- alet max-trade-money 0
1 v/ d; l% y0 g+ s' Q/ Qforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
. W8 Z3 z4 W0 x# D: vlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
3 b6 k5 ]- A q: G8 X/ a" U3 p+ x. F& M, V* h1 D6 k. I, p+ U
, c$ Q- c( \1 m5 D {7 a/ }( ]get-global-proportion
; u! r+ G4 R, ?8 C5 A4 G0 G7 elet trust-value
. ~# i! L9 s. 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)0 W0 ^3 v$ H) V* h& X5 M+ [
if(trust-value > trade-trust-value)
- K3 C" `+ l. G* I9 R w* C- s[set trust-ok true]% a* f2 t+ P+ a/ e4 A' ^
end( y b5 S! E. N% U3 c- O
1 W8 p. w& b# ^- b/ q, [2 ~8 o/ ]& Uto get-global-proportion
9 M3 H4 C% G0 e1 k$ q; R+ zifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)5 w3 |! k- o u- L1 J8 w U- T
[set global-proportion 0]
9 j7 q D& q: L) I* c+ J R[let i 0& x, ?$ I# j0 b4 K. ~
let sum-money 0
# I* w; g0 W1 f/ lwhile[ i < people]
. {/ k8 J P; H& b j[
$ y1 I2 v5 v/ i+ A' R( K& }: ~if( length (item i
/ A$ N& { m. s% f* z( o' G1 X[trade-record-all] of customer) > 3 )
, R0 @$ [+ }' D( V; ][& }* I% q! e. D$ n
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
: n0 Q; H6 u4 i- {& i3 Y1 S9 O]
/ `1 T- K. j& p+ @; c9 p9 ?2 u8 Z5 c I]: ?$ D6 |5 y9 W, u5 M0 N
let j 0
5 r t+ u# e$ L; P1 j- g+ ilet note 0
+ J7 Z* H5 A1 n* Twhile[ j < people]
7 z5 |0 `7 X) Z( E9 F2 ^[
5 C( e% a1 {3 z& Qif( length (item i
# z/ b/ a ~3 t/ t! I[trade-record-all] of customer) > 3 )
3 T, E% q- ^, L9 G2 f/ S9 W0 A" t& U[$ O! K d. v/ ?3 U, v \
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
( X9 M4 P: f/ O/ R0 Z[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
3 R, Z* u& H9 [# E0 ~- H[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
- n, l6 }, s# s0 P]
6 Y4 H6 Q8 m/ ]6 S- h" H1 c]
* @! ?+ k8 J! _: M" ?, ]% l% Qset global-proportion note
" e2 }- E6 h- y. ?]2 U6 \: H1 A# `4 m, b; i7 X
end- E ^0 N2 K# W" q
3 }" j6 S) d; l/ |
to do-trade
V5 a# ^3 e; d% g1 h5 J$ J;;这个过程实际上是给双方作出评价的过程
9 q+ l1 y# u( \; ]* Mset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
9 i" S9 _+ F3 T4 s6 V4 Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% D; x. T `8 @8 D) O1 aset trade-record-current lput(timer) trade-record-current
+ p. `% J. n4 ]) |;;评价时间
4 d+ ]+ D1 [3 T. E+ fask myself [; J. P5 ^$ O3 z0 m2 w# f
update-local-reputation
, J% |0 @/ j' D% \& M5 K; Gset trade-record-current lput([local-reputation] of myself) trade-record-current0 `4 o. G! o" [! j \9 k4 g
]( }6 g" T* ]; W/ v4 u3 m/ W9 G
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself/ C( t! l6 z, V
;;将此次交易的记录加入到trade-record-one中8 z2 n6 I- k6 @+ x% M; O9 ~
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)& P2 \2 p/ G& [( `! x
let note (item 2 trade-record-current )
$ M! L4 G3 T' r3 j* z0 F& ?set trade-record-current
. G8 O# K! p6 Y0 h(replace-item 2 trade-record-current (item 3 trade-record-current))
) ]$ B( R, w5 a) g x! fset trade-record-current+ u, j P' b5 k/ v
(replace-item 3 trade-record-current note), o8 b% ?& L* g; n5 K, v
+ `1 V, m; G' _0 u2 _! n0 J
7 ]( z1 `7 R( w0 U' Zask customer [0 V4 a4 J5 I( _( u! l
update-local-reputation
0 @6 N- B' D4 |+ Y1 Mset trade-record-current
9 Z: s( C; I/ O% H( \(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
) C6 R! t! p3 V]% K+ y# v& w2 D2 I# f% C, \
1 u! ~# K& _; e7 ?! j
0 x5 n! c+ C2 E. a5 a! [" n; Pset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer$ b9 A% r& n4 s( i' \' E
: r Q3 F" |" B) X0 N2 `: b
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
0 b5 C! B" O5 u+ S; W& f;;将此次交易的记录加入到customer的trade-record-all中+ t, ~; K4 H8 {7 h8 x
end+ u _3 r& n; H) l0 q% ^
' F. }. x9 h0 a) Z' O! a/ `: L
to update-local-reputation
3 K! d( E5 _/ x5 V% c/ U3 ?7 ?set [trade-record-one-len] of myself length [trade-record-one] of myself% ?) p; @; `2 R- }+ Z7 q( \8 r' |
( Y4 U8 L& N* R
0 I+ |+ u/ ^. n* F: e* b3 _' N! q;;if [trade-record-one-len] of myself > 3 : s, }1 U ]4 G
update-neighbor-total
. Q/ f, u$ e, z' H: V% I0 [;;更新邻居节点的数目,在此进行6 x% E. s" m: w2 y4 J
let i 3
' j t+ N5 Q& S. ~let sum-time 0
% A- ~4 E' t: p9 K( L1 O5 Qwhile[i < [trade-record-one-len] of myself]
( b5 |) R) K5 g3 {7 t' G[# B2 x* q/ q6 B' m& a8 v; a" y
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )+ b) D6 H& J- H+ C2 f# m' Y
set i
. S1 C6 a% {: N# H3 Z0 T. L( c( i + 1)3 g4 X: e7 X, C4 _! `
]
1 S+ F! R7 I) ^: v. vlet j 35 c8 e! ~1 X- l3 e/ ]8 h7 y. n
let sum-money 0/ L* K9 m+ j. r# q2 W- v5 R
while[j < [trade-record-one-len] of myself]6 a2 H! H1 g+ M& N% j; V0 I& {) e K
[
7 t! I1 @- {8 e) w0 ^8 E7 A9 s6 [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)
7 P2 r$ }1 j1 j8 w( ]0 d* qset j
9 {- o5 M2 i7 O( X6 y, H: L0 t( j + 1)/ G3 u" Z3 \* ?+ W4 y$ Y
]
' `" ? O1 e0 flet k 3/ |) e, q7 I) D6 X" m! e |
let power 0- p# r" R6 t$ p
let local 0
- Y j# n% o9 K Z$ s3 Y5 |while [k <[trade-record-one-len] of myself]
' G$ |8 ^( h3 F' o% {+ K[1 p! j9 r4 S3 q4 ^, e) 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) 2 x6 D+ v/ u4 _& r% c Y: |- G, K
set k (k + 1)
' |7 }2 v- d3 E5 W]' A! K0 S( U* D/ I% I+ ?
set [local-reputation] of myself (local)- V9 v: f( Q" V& x4 m8 x
end
]$ E$ E7 @7 y1 F+ U( |6 q# \4 [/ r4 a, o6 Z. c
to update-neighbor-total4 y8 L* Y% ^! [1 F/ Z! J% b
1 U$ u0 _& N6 n5 |$ q
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]3 k z( J2 `6 w/ T# n1 x
7 w2 H S' Q5 `# ^
% v1 d4 w/ i# @4 t, T: Fend) @ T: U7 D2 d) }& H8 n
+ e# G; S1 ^$ g: }) [
to update-credibility-ijl
: D5 W5 r# q/ k" s2 n
T4 Z, |/ y+ o+ G- R2 _/ L;;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。
# z2 m q- E6 j2 c" t" K7 Glet l 0+ K* U6 y+ u, {) j( m
while[ l < people ]! I v$ r7 }9 }4 z$ q
;;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
# } Y x {2 q2 g[0 Q O- G0 r% D) Q+ c0 g4 o
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)# s( F! {6 A4 o9 n
if (trade-record-one-j-l-len > 3)
" @5 V5 {# W- e' U3 i3 G[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-one5 M L* }6 ?0 m! R
let i 3
8 D( b) g2 f' d/ {' }1 Tlet sum-time 0+ v7 R9 o- o- V( B3 q' q
while[i < trade-record-one-len]
, q- z: n1 H- [* n1 B; r[7 j) E& b9 W1 n+ |+ F
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ H) d2 w8 J4 P H1 jset i' `1 s' O- j, d: }; x G
( i + 1): Z! r/ }5 f3 ^) {! {0 e$ |
]- ~) L. b, `1 v0 M5 d5 k
let credibility-i-j-l 0, p* l9 x, q6 E2 i: v& q
;;i评价(j对jl的评价), V7 ^& `2 a; k! g
let j 38 T1 K" k6 W/ A: m4 d
let k 4' h3 D5 q1 s4 [
while[j < trade-record-one-len]" o D' W4 p6 _% T( }* z( j
[
- j% g( X# V# V2 e9 y, ]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: } e- d' r }+ \% K7 h5 z
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)
$ `( |; @) _- dset j
{) R) v( q# P$ b2 }" o! C( j + 1); `* s1 r( Z5 O8 ^8 e! ^
]7 _+ A3 E! _7 L* c* y0 S' C; Z- j" 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 ))
; K2 [2 T6 E( q, ]% x4 F# Z: t0 M2 c. g$ L
2 K5 m d: ?& \" _' ~let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
: X5 @+ _4 \6 E2 c) R- R;;及时更新i对l的评价质量的评价
2 ~1 y! M; P6 S8 q* wset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]" l+ B* B- p- O E) ^3 k* o5 z
set l (l + 1). g% b9 k1 B; P- E& }
], k7 N; J5 W& X7 W) H2 D8 S
end7 ?, ?5 ]: O4 [- E2 l
, M$ a0 C4 t! v7 Oto update-credibility-list
& A. d7 v o6 @( H# \; O F5 i# Jlet i 0
. h, S1 ?7 t) e+ Twhile[i < people], ~$ l8 q" x% Q2 m# \+ y
[
" t% _. L9 X# v0 Nlet j 0
4 K2 l4 ?- _( l& Clet note 0: ]* l2 [; t' n" S% H2 x
let k 0
4 ^# v" p( Y- j;;计作出过评价的邻居节点的数目5 f$ r6 ]) n; Y1 x/ t) I9 w
while[j < people]
5 ^, R) {+ K9 t1 G5 N2 \) R[0 ^* o- C& l2 P- [$ O
if (item j( [credibility] of turtle (i + 1)) != -1)
1 W, P6 l- E0 b;;判断是否给本turtle的评价质量做出过评价的节点
4 a4 q/ b2 Z' `7 {[set note (note + item j ([credibility]of turtle (i + 1)))
* Z0 o( q9 [/ B;;*(exp (-(people - 2)))/(people - 2))]
) Q: y. g$ h, `1 P3 Uset k (k + 1)
/ m) q" _& r- p4 N]. k. S8 N1 M* g( t
set j (j + 1)! e- \% u1 q* w% q* b3 V. w1 h
]: y) l4 t9 o; Z* {2 i& Z( S0 G
set note (note *(exp (- (1 / k)))/ k)( c6 |# G( Y; O1 o5 L6 w
set credibility-list (replace-item i credibility-list note)
2 I' G' s) B* y% Z8 [8 xset i (i + 1)' @/ D) }/ u5 S# b# J
]6 F& }7 ?0 F! V
end/ t& {3 s6 M2 w1 K; U" I8 {% L
0 Y0 r8 n8 Q5 f5 N# I! h
to update-global-reputation-list
( t# h2 o+ Z7 ~* L' dlet j 0
, ^ W( m; @4 @' h/ y- wwhile[j < people]
; H) N- Z* b- p5 z; E8 b5 t; ~[
/ m) p/ [4 o( M. Wlet new 03 D. V) Z) I: j( q. e" Y
;;暂存新的一个全局声誉7 d0 }2 y1 G; d8 J
let i 09 l# C( H0 A. R O$ N
let sum-money 0& i6 ]0 t# |$ _" @/ l0 t' c
let credibility-money 0
7 U; E/ Q, a8 f* `/ swhile [i < people]+ ~9 G& f! |% e4 ]5 J4 a. d
[) n a% q# t1 z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
1 t: W7 W! _4 m* K% g( dset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 Y+ g7 {) S5 \0 ~7 `$ b, @3 m sset i (i + 1)
$ a$ \( o- X! D$ _7 u7 u# c]
/ h4 B5 M6 N" n) L6 `let k 06 c; b5 l& V9 j: p1 |
let new1 0
- N P6 t4 p- Gwhile [k < people]
/ P9 g& p/ {- A0 ~- A* ~4 D- F4 `[/ S& e! t( r' ], t% P
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)
6 n- K" T" Q6 s3 J7 [set k (k + 1)
( _1 l4 O+ T' {]
6 {, ]6 K( l$ i% L- v7 g* K- {set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
8 y) [8 n. J- D- H, o- Vset global-reputation-list (replace-item j global-reputation-list new). Q/ v$ c# q5 L
set j (j + 1)
4 {5 s" A7 B- r' Y]
0 g* }6 D8 `1 Q0 Oend
9 {) W* n' f! Y+ n9 [' X# {* b. B( f
7 a; n. o# @8 y5 |6 k+ n+ r; ?
$ j- B n- I( b! p2 R4 ?1 |to get-color
7 n7 r# x3 T {3 y
. ^* e0 R; q* c7 T6 H" I. f2 k8 aset color blue
" L' s) b5 N) `& H0 w0 J& mend/ A2 ?# k! y+ J
4 z& s0 }' Z7 J+ E3 I( y7 T7 A. }to poll-class
7 g) ?1 ` M" ?" d# tend; A+ `! c9 t, ^4 m8 ?
: J" z/ I* C8 U+ z& V3 H: R$ h
to setup-plot1
: `6 |$ H- a3 n+ ]# E
8 \, {% ~" a" d3 ]. d: @5 z; Z- hset-current-plot "Trends-of-Local-reputation"
% I3 l2 L8 A+ e o) I
0 {' i a [' ~/ h) J5 M1 Tset-plot-x-range 0 xmax
) F( z w. H5 q% L, {# [" l& d+ K
* Z7 J$ B9 t! m+ Oset-plot-y-range 0.0 ymax1 Z1 [ J- H5 s- C0 H
end
: g' B, d3 U1 x" d* E
0 n5 t6 |: c9 P p- L5 J t4 Bto setup-plot22 x6 {4 f$ n& N. `" O
1 I0 n4 D9 \" l1 H5 f
set-current-plot "Trends-of-global-reputation"
9 s; x$ N% p. C, C+ a% c" Y+ S& `3 Q6 k
set-plot-x-range 0 xmax
' X' P4 l. `6 h
) y% d+ I5 E. M% H9 v) n. M# p# ^set-plot-y-range 0.0 ymax
+ o2 e7 ~( R6 H" Eend
/ ~( b$ g& N- c4 z* S( p2 h i1 a/ _2 u' }' q
to setup-plot3
! P6 R$ ?6 f- o" g
: n% a r2 h6 O; R. }1 Pset-current-plot "Trends-of-credibility"9 j% y" |& w& n8 }
9 n+ L' Z. s/ |! k$ z' ?set-plot-x-range 0 xmax9 A* m$ B, t7 n0 N9 A$ e/ r1 f7 E! n
5 @% b9 B- z( {! pset-plot-y-range 0.0 ymax
[- Y# A' X6 ?, P$ Qend$ ]& a% g' w$ _ b8 B7 R) W: ^
' V+ D: T2 f, bto do-plots0 d% {) n, s8 L4 |: c! z( ~
set-current-plot "Trends-of-Local-reputation"* G% Z: q' n9 p. W" \3 v) H' o
set-current-plot-pen "Honest service"
! N2 s: F6 l1 @: r( kend2 F, M2 q) P9 R- J$ r, L1 Y5 f
( t: F$ T2 d6 ?( ] q( L+ ]1 O[ 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
|