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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
9 P3 c1 f& Q' v% h% uglobals[
w7 G3 }" S0 h$ R% m$ Z( m3 D' Nxmax
# V8 U" q% B& [8 A. Z; ?% l0 e. Kymax
5 C$ ^+ g# |; C/ Eglobal-reputation-list
) v4 ]/ l$ o2 q+ h3 p; d+ P% d& o+ M! {: w* N. c9 [
;;每一个turtle的全局声誉都存在此LIST中# p' t9 H0 N7 t& }
credibility-list
' u+ k& R m$ Q! s- o: h;;每一个turtle的评价可信度/ b% u3 H- q; y5 Y; E
honest-service/ I, K6 {& q: I: U; `" R
unhonest-service
4 K- ^2 ^+ d( Z1 T6 Y' Joscillation6 N E0 a9 @/ M: H, t8 |: `6 i3 u
rand-dynamic
" D- _. s9 J: X( ~3 I& @4 J]% f9 w3 H z* a/ @# F @: d
: Z# ^+ h; I- v R# n- D
turtles-own[
% f0 ~4 P8 C. x! a K5 U8 @2 atrade-record-all
* j7 [5 d7 X4 J& T% Y;;a list of lists,由trade-record-one组成
- ^( v, ?0 n! k4 }+ z6 Btrade-record-one
$ G! m2 f* H* h0 v7 \;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录; s5 s \% i/ z4 ^% Z0 l
; w: u. p0 a: n$ u" }8 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]]' `- K* ~" ?9 ~- J
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]2 w$ C( K- [2 E- ?
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
3 `! I! d+ n2 ~) z" ?) uneighbor-total
" Y( y0 s5 j3 x) [8 h$ D7 k. B;;记录该turtle的邻居节点的数目' E. I, r9 u. B+ l
trade-time
% g& p1 ]: K! n7 e) `# b3 d1 e;;当前发生交易的turtle的交易时间
8 c/ C, x9 N* `4 v' r6 gappraise-give5 s+ w( L. d* D" T5 @7 F
;;当前发生交易时给出的评价
* n3 X4 ?5 V" l9 ~* d; U- e2 n6 Y9 Dappraise-receive
3 u0 Y9 ^, Q0 @6 j& @;;当前发生交易时收到的评价
2 s: B/ ]! Z# {5 o8 happraise-time7 n9 C6 c( ~# `" ?/ t @
;;当前发生交易时的评价时间
) h6 s% ~) K9 s i! f {local-reputation-now;;此次交易后相对于对方turtle的局部声誉
* z# _3 M# L4 K/ y2 ^8 v: utrade-times-total
/ B5 ^5 j c( M5 B;;与当前turtle的交易总次数4 \$ M2 Y6 U. K7 m
trade-money-total7 u5 |! j% @; F: f. { X- K
;;与当前turtle的交易总金额
6 W( q6 g u: P- |local-reputation
# E- t: s/ F' \% mglobal-reputation: g. O0 e8 U" ]1 a5 x1 V, A# u0 Q
credibility$ n$ B1 w- G* Q5 @2 n" U7 t
;;评价可信度,每次交易后都需要更新. D9 }* M0 ^$ p9 k S& _/ p9 A2 y
credibility-all
1 Z- a }& u4 Y( u4 W/ Z) ^' ~7 q;;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 i; m+ [. F) O% y# \4 i7 C9 U& h, n3 ^# f
;;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( s6 o) l. N* R5 G* c' Q
credibility-one p q6 E2 C @6 f( L
;;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
$ O, ^" y v- }0 {- M% L9 nglobal-proportion2 V: j- F$ t; ~, d6 T+ S
customer
7 a( [+ r/ r: b5 g: p9 t/ E5 pcustomer-no' A5 s2 U4 {0 Q4 m5 o5 q# I, e4 w5 l
trust-ok
" i% ^ E- |) q- D& A, J* ^8 Ptrade-record-one-len;;trade-record-one的长度
% H+ s5 @$ q/ [* j9 t! O]
# h2 K- D, u0 C) @) _0 L. M1 B1 ]2 V0 [! O9 w
;;setup procedure/ N% ?1 U% _" M! s+ Z* w2 V" o' a0 C
5 Y( l5 p6 R$ E- qto setup
8 E+ Q/ I5 W% b& b! M& n: A! D, g0 C8 l9 \/ C' e
ca% L+ _2 S( t: x. o( K$ |( Z
0 X7 p6 B; L- Y7 b sinitialize-settings- g+ H6 G: V c0 i, M5 @- B
3 W; x- E+ k0 ^; U7 wcrt people [setup-turtles]' s3 e- P; v+ I3 |$ d
; `. x0 B6 u9 R( h. T$ ureset-timer
( ]- C% {( z2 J8 v/ J7 ]# k1 V
1 X$ ]: i. I9 e& j) v Epoll-class; X) r" N4 {% z1 m4 Y) [
) \6 B/ Y, C- ^7 T
setup-plots N' Q% s: y- u+ J
3 b9 ^4 X% h9 t0 N' ~3 F
do-plots
! [; O' j1 Q$ hend
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4 G: G: T! i# }' X; _to initialize-settings+ Q( A$ B" b6 K! e+ Y
/ x7 }& l& w/ w2 U! z$ x) ]set global-reputation-list []% P# ~0 g+ ~4 G# t& R8 E) C
7 y! V' J$ p9 E/ e0 H2 s% `
set credibility-list n-values people [0.5]4 a. U. L0 g8 o" Q$ D
* t* C+ U5 }# n2 o. W, S: Aset honest-service 0# K2 ]6 W7 h: x9 o/ ~* D
2 n4 x# e- R) n% c3 _+ w2 U5 W( a
set unhonest-service 0
' P' p7 b+ |( G5 v5 V) \" p, s, B8 v8 ?8 G2 O' q% Y7 ]
set oscillation 0
; g K9 g4 H( s, }4 E
/ J6 p4 n5 J- p& K+ zset rand-dynamic 0
1 S4 o d4 b& W" u/ X" P: I% Pend
% N1 r2 y% _- T% j& G% {. l! U0 c [; ?
to setup-turtles & |4 m" g1 |( I" b( b
set shape "person"
* h/ c+ E9 Y2 u8 X! ~$ Usetxy random-xcor random-ycor) z! I4 v" N" G, U( z0 j
set trade-record-one []( r+ u9 P: ]. b# n
* G! f; \: x1 c
set trade-record-all n-values people [(list (? + 1) 0 0)]
A. D ]1 d0 r5 p$ G' C2 a. M, K& n! }* g+ `+ @
set trade-record-current []/ Q/ q& N7 S2 k, h, x
set credibility-receive []
! W" c, t6 M v2 H0 ~set local-reputation 0.5( ]) X& G8 V+ b6 n5 {% z
set neighbor-total 0
$ \5 v; d, ~2 s: W8 m6 Iset trade-times-total 0+ M+ c5 p6 Y0 ~+ z: t
set trade-money-total 0
L; r. J/ @) S4 R, ~. Y; Bset customer nobody
0 x5 G1 t4 j$ B5 ?4 q; D/ w: h; }set credibility-all n-values people [creat-credibility]
% m2 {# P" p9 h1 _set credibility n-values people [-1]
6 x! z+ ]- {, z3 p( nget-color
) k! X; E' w2 m! g2 I9 N: H
T3 ?, d h7 `; r2 |7 a6 Gend
. t* h8 U8 @0 b; G( `
2 N- F) ^; M1 K* s# O; T1 k& w- Yto-report creat-credibility! v x' v8 z! G1 v
report n-values people [0.5]
6 k; s4 J |9 a; |8 P) A' Mend
, m! N; [: W3 x1 E& k) r9 z% @ {
6 v* U# v. Y7 @2 |. Mto setup-plots' m$ j1 b) a6 O) H5 t
! o$ Q( I' M+ _, Y: f
set xmax 30$ ~9 u) k$ e, o$ k! E7 \; n
4 Z( d' K$ u! Gset ymax 1.0, d" p5 l' y0 a# C& Q
$ [# E) S! J& |( T7 [clear-all-plots7 [/ u8 W0 l, P; z; q9 T
4 j$ p# \) ?2 ?7 {! ysetup-plot12 M3 Q% _: H& h. a! w. f$ d
% E: g" B. y" q1 I
setup-plot2& K1 i' f' D( l8 W" R; ^9 l; O
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setup-plot3
+ _: u) \8 G3 ?& [. J: U2 i1 `end
. C0 [7 i6 Q& U3 l7 a# x7 i7 S- }
- Z, N7 m4 R7 \# ?/ R;;run time procedures
6 U. A. G3 v% M- ?- l- N
( w3 U% r2 i, S3 z8 f( Dto go
- `" B8 Y& o' q% l1 a. I3 T5 M& x# X9 e4 [# d
ask turtles [do-business]
2 w Y1 K# X( n4 F7 r/ J# Wend( o2 _5 ~2 Q. K
; g( z( T- f9 hto do-business
" [- y& ]" j% ?8 v1 Q3 T+ s9 z% v: w# h- j
) c v& Q7 E6 q# B' {7 U* brt random 360
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fd 1* T. i6 q0 w* ^5 R; w: C: n) o
1 l+ z/ N- y: G, v; y
ifelse(other turtles-here != nobody)[
W( b* W, d: _4 e8 P( ?0 }- `3 Q5 ?' ?/ k
set customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
& P# I) Q1 S4 q& c$ S[trade-record-all]of self. l) B8 ?; D6 l" p
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: H2 L7 r$ D9 @. u5 z2 i- v, K }8 t5 ]6 i1 z+ S
set [trade-record-one] of customer item (([who] of self) - 1) Q3 L0 I& w7 J& P( X
[trade-record-all]of customer
0 R2 ~! m0 ~; V" M6 w( o" U) i W/ w9 y4 u) Q; @1 w" O# b0 c0 |
set [trade-record-one-len] of self length [trade-record-one] of self
9 c& l6 ?5 d) n. T) N
) }, m$ t0 [9 N) D; I4 Y* r$ vset trade-record-current( list (timer) (random money-upper-limit))" \ Y i- H; a! t [, P
M! ~( H. L, K2 U, `. s
ask self [do-trust]
: ~* {8 [2 Z7 k;;先求i对j的信任度3 n& |9 Z5 \! M* [9 d# L; S
G6 S" U: R* c2 V7 ?if ([trust-ok] of self)
* o, K! K- l- n( A6 t;;根据i对j的信任度来决定是否与j进行交易[3 S2 s1 M- ~1 ]' j$ [( T8 u7 n
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
- S$ h& N; {; `- x9 ?
& N0 L( c3 {- R* @+ l3 s3 t' @[/ A" Q3 ~0 P- k
" E- W8 D" |( L2 M1 Z, x- ydo-trade4 {8 h) r; z+ t( x( g7 I- u
( D: _4 B: z; j9 l6 S* l0 x. X
update-credibility-ijl
+ @4 b9 @! L( @0 s% {( W6 R3 i' j2 y2 O: V% ]+ Z1 j* x
update-credibility-list
: y2 N/ r1 y8 l
8 A% U. E1 U, I) \6 G1 ~
; Y3 I% `: T/ h9 qupdate-global-reputation-list
7 o0 {# m! J; O9 D; Q& E l" H, B; s
poll-class
5 t1 z- A3 D; N# a, n6 {- K4 g8 Q. Q( n: @( D. t4 q
get-color! |& Z: q2 C- y- |
& N0 B% k6 i4 f4 h A]]: y' S2 u, Q" r
% }( n. W) c9 r3 u
;;如果所得的信任度满足条件,则进行交易
! M1 u/ R" w1 W, \2 L r7 x
6 ?9 W3 W( H' X- g" N5 v[
, V. Z5 ^, _* g. g# C' M" E, [$ p" c! s* k* G/ {6 j
rt random 360
1 Z$ ^# i5 p. ?+ x, R; b( I
; w5 C3 M/ o7 W4 q8 Y# D' J' Efd 1
# R1 x2 E" t+ Y' n2 H" q
& L; X+ D* H( q7 H1 M8 T+ z: x, j9 t. M]" T, o( L' s& ?/ q; L' h# N
' P& t$ h% o) f; h
end9 m0 d: V2 {5 Q
8 S# r$ b) [! A x cto do-trust 2 A6 U1 |* R; n# M$ i9 C
set trust-ok False
7 E$ v' g4 C& ]' |5 {
2 O) s4 E. |, x8 {
" I2 z& f1 G( O/ ]1 C [- w2 zlet max-trade-times 0
+ Y L2 a1 y, d Pforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 S" P0 p+ O3 \# ?let max-trade-money 0
( t" D4 D9 n2 v- U1 ?foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]! M- E# C$ t% C* V0 Y
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
{' l6 I7 z$ j# s6 Q& v I3 I$ {( x
0 x' @1 ~' O$ s% T6 A9 g, @8 l1 U
get-global-proportion* p" a: G; C j$ j J% m5 X' A
let trust-value) W- M1 d) G4 `) U4 a! e) V9 |) f
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)3 a, D7 |& r" d; u0 @
if(trust-value > trade-trust-value)
1 d1 e4 f7 i0 c; C C/ r4 I3 h[set trust-ok true]% C: A9 \) \7 _/ C3 t
end
* d' U( a# N" G) S0 M: w5 u3 y7 c. Y* P5 x6 d8 T
to get-global-proportion" Y0 {. O; V" c9 ?# o; E) m7 J& Y
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* \: a) D& ^/ L* }- t9 O[set global-proportion 0]
. y6 e# S a" h# ? l) \3 H[let i 08 l8 n3 D/ l% i- M+ G, i( f
let sum-money 0% Z, J% G; B7 S- l6 |* H
while[ i < people]! t* [* k9 X3 X4 Z* s8 r8 m. H4 V
[
* Y5 p- w3 t+ C0 {if( length (item i0 K/ N- I# L/ o) ^
[trade-record-all] of customer) > 3 )7 w/ Q' x7 ^- D" F# Z' N
[
6 v+ k6 q5 b2 ^# f1 ~+ h7 j+ Q9 zset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
2 v8 Z2 r; s* b: r/ P]% a8 h2 m" S3 S9 v: M: o7 |" i
]
% r; C+ l; K0 ulet j 0
( `9 K0 E5 Y# h Clet note 0: _8 A$ o* ^8 _; g+ @
while[ j < people]& b3 s( d* S) M5 I8 M0 O
[4 Z3 B% V$ H( ]- ?. e" B+ k
if( length (item i# N$ i/ @0 o" O: C8 R1 d1 t
[trade-record-all] of customer) > 3 )0 T$ i6 x/ Y5 G8 Y% _, U" d
[7 \2 Q9 X* U6 [) d C% w$ T, Z% d
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
- z9 X; G& m- w% P[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
: w9 E( u7 \5 e+ n$ V[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
% g2 Q* M2 C4 p5 o8 B) V]1 s: d: }" |1 Y5 Q$ L& c
]% \' V% P7 L) U. a1 C! W
set global-proportion note% C- ~: R6 \ f2 r) Y, o' } K4 I
]6 z: j2 d2 X6 t8 Z; J
end, R0 {% Y) d& x/ K7 }) n
1 p5 H" K2 z2 P+ g1 \. N0 D
to do-trade: F7 _( ?! |- B' U( C4 q9 |
;;这个过程实际上是给双方作出评价的过程
6 V6 W1 ?$ W2 A" Nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: f# `% x/ y% R! h) p5 nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
6 z6 W) B2 ]) _set trade-record-current lput(timer) trade-record-current+ d3 N, w) L5 C1 @
;;评价时间
& `9 A( n, t1 iask myself [
; P0 O" b. W- }5 i. yupdate-local-reputation
/ V& S( y7 I/ Q: Y" Z9 }& Rset trade-record-current lput([local-reputation] of myself) trade-record-current
# p5 k( d5 u6 Q U]
" F8 c* e5 {# @4 X5 o! lset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself0 Y6 M' a l2 O" Z6 R+ ]6 a
;;将此次交易的记录加入到trade-record-one中0 k& h/ e% l' i* P& P$ R
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
* E9 ^# b r4 C; Q7 clet note (item 2 trade-record-current )
6 {" N+ |. }* c& Iset trade-record-current; v) M0 T" T' z7 \1 O. g5 H
(replace-item 2 trade-record-current (item 3 trade-record-current))
# C# e2 F' E% t+ o) Bset trade-record-current6 `- [; X( h& B
(replace-item 3 trade-record-current note)
- u' _2 \& }! r
5 a- o+ L8 C E3 O4 G( F+ @' z+ X
5 J, l; w3 c2 B \) b. Q, nask customer [% Q& p- r( a" F, b) l; P
update-local-reputation H* u% |! l4 ^( y6 E& ?& B7 p5 F
set trade-record-current
- ^- d% w( ~# O: D% |6 {(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
" O9 R. w6 K7 k% f]( X( ~ O) \. P, ^' S9 r
2 ?1 c. N( }* {: u* J9 s
?# C1 F% i6 W
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer6 I: |& [9 s4 O, a) ~1 }
- W3 {# |' k8 Q
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
' y3 j1 @3 J$ q+ z;;将此次交易的记录加入到customer的trade-record-all中
6 [" b5 `5 o6 O) k# d* r# uend
( e& q; N! X* L5 t3 ]( V1 ^! R( W/ T: T* l8 g9 X9 [
to update-local-reputation+ ~$ u7 w2 M& z/ d- c/ X
set [trade-record-one-len] of myself length [trade-record-one] of myself0 L' I# e" h) j! y H# l
4 e' M: d# i6 O- ]4 {: S
# T& k& n+ |& s1 }( B; H
;;if [trade-record-one-len] of myself > 3 $ \: Z; t2 o) M% H, t0 C
update-neighbor-total) r! G% ]2 y! i7 m
;;更新邻居节点的数目,在此进行
) t' v, t$ G+ b1 b' elet i 3 c4 o# @) r+ G U! h* C+ a
let sum-time 0
! X: x8 X* ^) l8 t ^8 nwhile[i < [trade-record-one-len] of myself]
) c% ?2 T$ K4 F3 S3 u2 N. J[
- p* T9 w0 U' [6 b( ~/ u1 Gset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )0 R, M9 z3 [; u3 n3 c
set i5 v8 h$ ^( m6 [
( i + 1)
_, T$ R2 a* N5 r/ ]]4 Q* E0 R0 Y6 H8 S
let j 3
Z6 l" b, U/ L( @6 |let sum-money 0' a+ ` h" ~$ A* B$ T
while[j < [trade-record-one-len] of myself]
0 J9 K0 j+ L' u* }$ n+ _$ N& ?[
. z1 M% K: ~) C5 Yset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
) B) s3 H6 ]* D5 a/ D" Tset j
7 v+ |& E" b" O( j + 1)
; f0 p% t' P" i! ?1 X: x2 p! ]]# L' z( c$ U4 R0 t0 ?! C
let k 30 M. x* ~) K2 K, c2 x
let power 0
) Q8 |4 S) e! a$ i5 y( Flet local 0
+ s9 t- B$ L& i, t- n: c9 [, zwhile [k <[trade-record-one-len] of myself]
- V: [7 H/ g5 @4 P[; e6 B. u( n: D7 J1 Y8 Q
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)
& s0 t; m$ t8 j) o4 n. sset k (k + 1)
2 A3 s/ ^) @' _8 Q' Q3 G( x]! d) d8 u$ F; V
set [local-reputation] of myself (local)
$ @: q, c, Y7 a9 L% g& o. k1 mend
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to update-neighbor-total
% j* _3 ?& B% B/ S/ _$ ~1 S ^6 n; {! w
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" N. q* c9 L/ x# E# t
* {( P8 K& l N: U" _# S. E0 V# I' }/ g' S. ^. K2 N* L! b% e
end
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to update-credibility-ijl
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;;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。
0 u% G$ o( P6 g) Ilet l 00 p. m7 k$ f, {( G9 x4 j2 U* A
while[ l < people ]
% j' T* }* l2 m1 K% X+ I;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
. a* p8 S4 T1 `0 k1 P5 }% sif (trade-record-one-j-l-len > 3)9 _& L+ X$ ]% Z5 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-one0 b: |( h, \. c1 P
let i 3
5 {; [7 m) v' U5 Jlet sum-time 0% o8 D8 T3 Z" D* l
while[i < trade-record-one-len]+ e! {* I3 e" [6 j
[
! D0 f. j- e2 q' Y* Qset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
T5 K4 W* f0 B* ]set i
4 m" Q5 O! C" v( _, p( i + 1)% {2 e6 b; t% x9 ]3 L* \0 j6 b
]8 ]4 e% T0 P' H% M8 {- v) l
let credibility-i-j-l 0) M! |2 O& `$ _# F+ ~* @# q# S" c
;;i评价(j对jl的评价)
) ^( Q( j. z- | e8 r) O" ylet j 3
: k' X0 P$ j, {- F# c. v$ Ilet k 4
* Q9 f5 P/ q* L9 c: f& q7 W1 ^while[j < trade-record-one-len]5 g$ z m0 J, Q5 S; j4 w
[
5 l, ~% R" A, u" Z1 g( ^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
/ J. x. V3 t6 B# V$ H7 C" |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)" T# Y3 a& y. J6 C0 b
set j
+ _1 d; v- N7 e4 U7 y, g3 q$ ]( j + 1)
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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 ))
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ \ M5 V) B$ x( `$ q/ I6 D;;及时更新i对l的评价质量的评价
/ X* F, x% @; n2 C6 U5 p( V) Fset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
0 D+ z! q) k( J* V% y2 x/ Qset l (l + 1)
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end
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to update-credibility-list
' \2 C* t/ n" _8 ]# p# ~! Llet i 0. Q1 v& t: c( p; {+ b
while[i < people]
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% ?, i# _1 ^- X7 N4 K/ Glet j 0
$ w& M+ ?& |1 [. \let note 0
6 b g w6 w: L r: tlet k 0; K+ r) ~' b/ B/ N
;;计作出过评价的邻居节点的数目
1 F* z. A2 f5 T6 @$ L y jwhile[j < people]
+ S( s7 V- a0 A+ e& n# E, }[8 d9 J6 m6 z) W4 ?9 [+ _7 A/ N( ]2 Y
if (item j( [credibility] of turtle (i + 1)) != -1)2 }8 J" ?+ ]. |5 t/ j' l( S0 V- y
;;判断是否给本turtle的评价质量做出过评价的节点3 i0 a/ R; C1 o1 s# l6 C. Q& t
[set note (note + item j ([credibility]of turtle (i + 1)))- z" x' e! @, E# D0 i
;;*(exp (-(people - 2)))/(people - 2))]# ]5 R9 [) h+ n# b
set k (k + 1)
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- W8 J3 r6 t. R. y7 k' Oset j (j + 1)+ z+ m0 i; X Y# A$ x( r2 L9 @
], o0 N4 J) Z* `7 w8 _! Z
set note (note *(exp (- (1 / k)))/ k)
) y* [( V/ v. E3 G- b, pset credibility-list (replace-item i credibility-list note) E+ }: x9 M2 k2 p6 H" Y' T
set i (i + 1)
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1 @& E7 I# y8 i/ Oend8 J+ o! M% h5 B, c0 O: C
M. w5 U$ t* o9 m' v/ F. L K* Hto update-global-reputation-list4 j9 \5 p2 _6 n: z! ?! T) x
let j 0
E" e) Y5 w& g; ^( b- mwhile[j < people]
2 \9 ]4 [% q: Y* f: {5 P# D[5 K m- n7 u! I7 ]% {
let new 0
4 c6 f, l [& y7 B;;暂存新的一个全局声誉
7 o2 S* Y! I$ tlet i 0 P* q3 g- W' {% `! U- s
let sum-money 0, a) @% r- V- W! M" v [( ^( r
let credibility-money 02 B8 d) c. a! R) F5 i* z
while [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( z9 |7 P' \" O. z( l/ i! r
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
k- @. F H# g3 \! k* Zset i (i + 1)
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let k 0/ f8 H! B: v8 u; F F, E
let new1 08 a5 E# M# t2 X+ c1 K0 M' n2 k
while [k < people]4 Z+ ]& ?) w0 `! \8 j
[
F& o1 m# h# ]+ b& v6 a. ~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)' o4 m. _# W9 P
set k (k + 1)6 u# a4 a& K* p$ `% |+ m
]; f1 ~ q0 o0 t8 e+ {
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ' c+ W9 H/ C- y8 |2 i5 {6 A0 a
set global-reputation-list (replace-item j global-reputation-list new)
! Y/ |+ L, s( T5 C# { aset j (j + 1)# V& `& ?5 {) d9 F
]* i2 A& p8 E$ I* B
end
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* v. y2 l. h: Tto get-color) S+ H3 M& R3 Z* Q4 Z4 \ e
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set color blue6 H k! B% k! _8 b0 o
end
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; o3 T. F1 V- g* B5 S1 j4 D/ T% Ato poll-class/ c( W5 _; ?$ t& h/ l
end9 z8 p+ X+ o: S- l6 ? m( B
# h& o8 w+ ~3 ~, E e4 pto setup-plot1/ J" M, z* b6 n8 r
2 ?' h4 N, I% Z/ Z2 D" Iset-current-plot "Trends-of-Local-reputation": I$ u, \. ], A4 f5 R% T; L
: x$ \7 Z3 F* R. H9 \2 aset-plot-x-range 0 xmax
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4 s8 ~* n( `' ?- `set-plot-y-range 0.0 ymax; E1 V3 ^( }7 M
end
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+ D( Z7 p8 u4 d0 P- Z+ M. Zto setup-plot21 U; m7 p0 f! l7 g; m
+ v7 f; U4 C/ }! b ~+ A) k6 \. G, y' Jset-current-plot "Trends-of-global-reputation"1 J& r$ w/ l+ M/ i2 f5 O
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set-plot-x-range 0 xmax) b$ |0 a9 O/ M% }+ Y" P
* N, x4 e, [+ B5 [* l' mset-plot-y-range 0.0 ymax1 y' E& W% @& g& H7 d
end
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4 u3 g9 i8 l/ l- b4 pto setup-plot3& S( c8 i2 y3 l9 l8 d
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set-current-plot "Trends-of-credibility"
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" S8 x, S7 B- X$ c' I4 q, ]$ ?set-plot-x-range 0 xmax5 }* L7 Y$ D! `* S2 x0 E
3 C3 R. _% _2 `$ l/ d
set-plot-y-range 0.0 ymax! ^1 f+ a' ?; n
end+ N# V0 h" P) X _" m/ C4 F) A2 @
( x% r& l6 b( z3 r+ O1 h+ t S9 gto do-plots$ U, c2 y9 K7 c" C3 k
set-current-plot "Trends-of-Local-reputation"
( I7 ]& L. [8 m" u+ |set-current-plot-pen "Honest service"
' [4 W* K" [$ d& J/ J" Yend* Y7 v9 y0 z4 t3 x8 h% w
/ Y+ i9 r4 L, @( i, j' m0 K/ w: q[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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