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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: H5 H, d2 L- s& ?
globals[
& ?9 r+ Q8 R9 [8 O( x$ Txmax
4 _4 a! n+ l: L) j7 ]7 Dymax
: V" t" m5 W b; l' _% _global-reputation-list
% r4 i7 ~3 T. B# ^: j: D% l0 y0 C: t) F4 X; h: e+ d; M3 G) x
;;每一个turtle的全局声誉都存在此LIST中
! D$ Y! I! ~2 X! c3 X2 e% M" Icredibility-list7 s% K! Q5 X) n9 O
;;每一个turtle的评价可信度- O, r; o. U8 z7 U* k9 S$ P4 n
honest-service
" X' ~! Z0 k* s. O* h; j" xunhonest-service
, w6 F# A$ {0 k" J* zoscillation
) o$ O- r( [- z, D% {rand-dynamic
, g2 F2 ]+ _- _3 T6 b; } ?]2 t! }5 |0 Z% r6 |; Q
, o- f8 V; Z4 w$ B- z/ T5 j m
turtles-own[
" h/ B1 K2 q9 atrade-record-all$ P! N$ R6 Z9 I# P( L
;;a list of lists,由trade-record-one组成
; I$ a' f; t1 ?1 l& B/ d( U( \trade-record-one
) |# d1 _5 e6 g3 L# l;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ Z% L$ x: E8 N( L( L9 u- H! s
$ t7 c* D/ k# z1 ]- j9 b' r;;[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]]' \0 r+ x d# I- Y; R* H A0 A
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]$ j/ L+ ~, S5 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
" ]& a( C4 O" w+ nneighbor-total4 t9 L+ ~" H( S6 L
;;记录该turtle的邻居节点的数目
+ R9 e& N& }) L' ~trade-time" w# Q( j' {! c! _( A
;;当前发生交易的turtle的交易时间8 T, T1 X ]) L4 T
appraise-give
9 I {& J' k5 S# U1 b;;当前发生交易时给出的评价" \4 {6 T* }* J& V0 [
appraise-receive/ N) E- H( S O3 x: T' `
;;当前发生交易时收到的评价7 g, g4 L8 E: ^4 @1 o& [
appraise-time
. Z6 ]0 R( k2 @;;当前发生交易时的评价时间
2 r0 F8 a d5 Z, Slocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
4 X- g0 [5 X5 [; x2 {- ftrade-times-total
% {' ]' f5 W9 C- c;;与当前turtle的交易总次数
4 B! k- }/ g5 _4 Itrade-money-total; v4 \, n; ~' ]3 Q- I ]
;;与当前turtle的交易总金额% D( n9 I7 A& k& W
local-reputation2 I- o9 y' W" R% A5 Z/ J- p% p7 ~
global-reputation
2 |' g3 K% t, W& u# l/ B( Xcredibility
% H% I) J; ?9 @; r;;评价可信度,每次交易后都需要更新
4 c3 K1 h0 X" n7 w2 U& pcredibility-all* p k( r4 q* w: Z/ ^
;;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
& L& O' r @ g( n
( L! v. ~5 G' A; T;;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
3 R) o. h8 a- |) Q$ gcredibility-one/ ~' H+ Z4 n/ k: ]3 J
;;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' { w: f/ V' ^, }% H/ |
global-proportion
% t" B9 P% \) E; h7 R: ]customer4 u4 A" Q2 j: H/ F" E
customer-no7 C2 k/ ~! a4 H, n9 G( {+ \
trust-ok
% r% b- n9 j1 n/ [ E3 }trade-record-one-len;;trade-record-one的长度9 {3 X. L q; ?
]
5 D" v/ t* h* _$ r7 M1 ^
1 B& r0 b( U+ B- q, i$ C8 \;;setup procedure' ?0 s( |* p" j0 [8 l' k' R
# D, m$ O2 ~8 t0 M
to setup
; ]. D: A& p/ i- `; G" q( n- `# M* m" j6 }, U6 B3 r) G9 [! W
ca4 G; Q- ?$ s% n& o' I
3 U |$ d' Q& Q, h9 L) I
initialize-settings
4 M: r8 i/ l3 i% B8 l) R
* e7 i Y! F7 m0 o9 @" qcrt people [setup-turtles]( ^* u' R2 p4 L2 T/ ~$ M
V" u! d. {5 o- r
reset-timer
8 z/ N& u& n, [1 Z5 Z( b& K
- U- |0 a/ }/ v! E. t" B+ r0 {# Hpoll-class
3 K) W/ G9 h; x/ z; p
; | P, M7 _, x2 m# ^setup-plots! h" w# d; d: `
8 j6 l3 j# l- N+ D$ u1 z# R3 Ddo-plots
; u. V( `% D/ p$ n6 G0 Z" Oend' V) \! t! d' E9 q( B: f
! G6 X" v( _" ]' L( Uto initialize-settings# C/ h: L/ T+ ~
0 U8 A/ z, E8 S8 }% I6 f$ G- P
set global-reputation-list []( c) F- j! j+ n0 f3 C8 \- n
, B: i% Y$ t" J( M: a, c' x
set credibility-list n-values people [0.5]
$ b& j- K& t# T4 I. N3 c0 Y- l& v* s
4 n: h1 V, S7 G) U+ b4 X( kset honest-service 0% X7 R8 e1 r3 ]" e. A. C. Z
7 |( U8 {' Y3 kset unhonest-service 0
$ {# I2 z) G- c! L2 D+ x
; p6 o! c9 g' v4 T6 s; r+ @0 F! sset oscillation 0" h, B& r- j' u' `! \; k
1 G8 y3 x1 t4 _/ ~; r, Q% y: N
set rand-dynamic 0
2 |6 |. X! N2 k' z) x& uend2 y: a9 s4 b( B, c! F( z" e- ~
' p2 e+ }" h1 I; {5 f* b$ Vto setup-turtles
* F6 d9 x( ~; k P# Vset shape "person"
3 y! ]- o9 E7 Rsetxy random-xcor random-ycor
2 `* X" F- ~7 d/ Jset trade-record-one []! L; J: ^) y% T9 A7 |* ~! n
& o" B$ ]. p+ P- C3 o
set trade-record-all n-values people [(list (? + 1) 0 0)] 3 _- z/ l) s3 A
& d" y% W% T: a% O5 Y
set trade-record-current []
- ?& u4 Q' M' E0 O5 jset credibility-receive []
8 j+ L8 B9 A$ L% C9 aset local-reputation 0.5! a- p; z3 {6 [+ ^5 W4 X+ C
set neighbor-total 0% {- c7 k0 x1 e2 v/ d; k
set trade-times-total 0! b: V0 s: Z. G( v; n
set trade-money-total 0. J) H" ~! g1 [5 K% m6 i4 a
set customer nobody, D+ H% N/ z* m( n: A
set credibility-all n-values people [creat-credibility]
% Z; x7 `1 P9 D+ Uset credibility n-values people [-1]
! G6 @: E8 t% y3 z5 b0 J* K, Tget-color
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1 o/ J X) j5 \( h% F: Mend
+ r, B8 p( N- H, N& R( V. O. [5 p" X" b
to-report creat-credibility
; J8 O6 W1 \! B, `. r2 d0 Wreport n-values people [0.5], U* ^/ |7 Y7 I% s
end! }/ X8 k- o+ p8 P6 m
5 K* n; ]4 ^4 @9 ~, V x+ U" ]to setup-plots
1 G6 d8 X4 Z* u" v
& h& ~) G& T. j- B" Rset xmax 308 u2 ~$ h" o% m6 A& z: F. q, E
+ q. M# C8 r3 h
set ymax 1.0
4 F1 w. X+ |5 c+ |9 z
' \: r- g! I6 w3 S! I0 [clear-all-plots
' M* L* A0 E2 c( j* `* q( p/ z
' v% C; D: Z7 ksetup-plot1
~' t* F# V% w, T9 @# z! w8 T0 d; P9 b
setup-plot2
0 c0 @) |; X: U9 D8 p+ A3 M
4 x1 [+ D* O2 e$ D6 X" M+ _setup-plot3
^8 X5 @# e- w( z4 Q- L. C4 p) Rend- f; _ o# e3 Q+ k% G0 \
( f( @8 ]9 @+ ]! b
;;run time procedures$ F' j: b& c+ }# M+ X* i5 k
F" }. c, G8 ]# ?* k; ]
to go* G/ ]# {8 E+ a; a: x! \8 b2 l
! m$ Q: C$ \2 k, p, e7 Q
ask turtles [do-business]
0 T J& S8 v3 F2 r9 v Tend0 B+ H( i# \4 X- U4 ]1 s5 x
# f5 \4 Q- H) T* k0 K9 E. Bto do-business 9 A1 q" S7 T. E6 V
+ S4 e/ {; s/ _: l+ k
! P9 _6 d V' r8 `* V, xrt random 360' c+ d1 [0 p3 j) U& V$ F4 q( \
$ ^+ \. L% r# ?% a* @! X% Tfd 1+ o$ D2 R9 P8 r- I, U ]7 I
+ i1 E+ I9 R5 X; j' Jifelse(other turtles-here != nobody)[# p5 ^1 a( B; P; b' b/ z
6 ?7 h: P6 m9 eset customer one-of other turtles-here6 \. j# w/ T, a, k( s( q
( h% o' v6 ~* s- U3 i;; set [customer] of customer myself
* F7 y* s# B% d& M& y) _1 K$ G' A4 X$ g# D. j8 Y, I# z
set [trade-record-one] of self item (([who] of customer) - 1)# c; Q: R7 f9 |+ z
[trade-record-all]of self+ f M# {: L; @6 k" B0 O
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
* }* J2 M+ K3 y5 a$ h$ @9 J2 ?
+ {7 Q/ Z8 G+ p% w2 s- _5 @# F& N$ ~) r* H* Zset [trade-record-one] of customer item (([who] of self) - 1)2 J; @4 | e' _0 \# I
[trade-record-all]of customer
( x5 F) V* s2 h# D7 w! m6 X( S( R$ {4 z" S H6 f# g
set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
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F$ z# Y4 i6 e" o3 H& H8 m0 T6 R; ]ask self [do-trust]
* ^3 D( z3 J6 w;;先求i对j的信任度
' n& C0 S# ?/ g! }4 _
# L% |' b. k- U. O" N3 S% Xif ([trust-ok] of self)$ Y& e/ @% F' ?! g3 F9 g
;;根据i对j的信任度来决定是否与j进行交易[$ G! [! O$ y) g5 M; {# F4 E- w
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
( {, w2 L: O8 c" u4 f3 ?( y n) N; t
[6 W. `( p# T' J# ~7 A# l
$ i) Z( y5 f& G$ P3 Z, x
do-trade# H6 ^1 ?+ H& y9 z. Y
. g9 Z" p8 j6 Q8 gupdate-credibility-ijl
; @! J7 s+ W: ]; K# e! v( j2 }- ?9 V+ ~
update-credibility-list' x% M9 R" m6 M! p
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* [( p$ u, K4 n b* F& W
update-global-reputation-list* s) o) [$ ?( o7 A1 g
3 Q+ [% j0 Z) d$ `3 Y7 f! D- \
poll-class9 J& ^+ w* c; c0 A4 m
; U& J7 Y' K' {+ mget-color
4 d1 l7 J: \9 h, _- u; x6 C4 a/ X% U
]]
& f5 f" W! D7 {4 c0 r5 r8 Z/ a& L5 |. V. h! L8 r3 D$ U2 T3 M4 ~
;;如果所得的信任度满足条件,则进行交易
6 k. L( F4 ~4 I8 P' R9 c4 ]/ J. k1 b/ J1 r
[
( z# I) C8 q! z5 {8 B6 ]5 Y
+ z, |3 s* A/ v4 m- vrt random 360( W4 J, n) T4 T1 [
0 C6 _8 r; N6 jfd 1! B# A. d, S) E
' s3 F8 S; A* ^6 H
]% L9 M8 w- [0 w- o4 F" Q# h: \! [6 A
7 N* B+ ?! ]2 V0 Fend" ?8 a# l4 x2 S7 }+ B% g* d! Q
4 i! W) ]. I8 o g: Kto do-trust ) k- G3 W7 w! ]( i$ G, ~4 u- x- Y
set trust-ok False
7 R! V2 Z5 F. f7 x5 [' ?) n! O) {) A% L! b* w& h
& v: o u& T# I, A4 t- Rlet max-trade-times 0
2 ^+ O1 D4 W' V1 ~5 [7 @- U, eforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]2 e1 R4 k; |) |# k+ B7 p# u. P
let max-trade-money 0
. ]. W6 R% j" _6 P3 Xforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
9 I/ I& d# \. Clet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)), Z8 a1 j9 j6 ]1 W( R% B
6 R$ e0 P0 U5 v. B
' f! |0 O$ O4 rget-global-proportion' o/ c8 x* f! e
let trust-value
) d* y- t+ p* ~& u, m) j. [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)" g$ G. H/ O& e p! [, O. [7 t' j
if(trust-value > trade-trust-value)
0 C$ p* f9 o5 b2 |4 T, |9 s[set trust-ok true]6 [. v: C i" d: ~
end4 I# z4 t9 d$ B
- K% N6 b: U" k" x* ~6 P0 D, \) `
to get-global-proportion
$ x4 ^1 T3 m. B7 h7 vifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 v( N: _" s7 o[set global-proportion 0]* @& x! y3 z* V- V& k5 h4 z5 a( |. S
[let i 0
: K+ ^* B+ p2 W1 glet sum-money 0
) R. }0 k; V4 a8 D! b1 B! Y- s! \& xwhile[ i < people]
O& `2 d. @4 U( E! Y, b( ~[: M8 g* I) s; o/ J% y9 x* S
if( length (item i! v' _" r& f6 W7 x' w4 p6 P
[trade-record-all] of customer) > 3 )
' R: T @3 s5 X7 V$ k[7 E& j/ A- T% i- D" ]* X/ j3 ^
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))- y: {8 A/ g0 @) w
]
1 i+ t$ j3 c( n]
( U4 ^2 P6 B6 k+ t( X w0 ]7 g: vlet j 0
( V! `" X- D! V, C& zlet note 0" d" o, a+ K4 O3 E
while[ j < people]' l* I2 E3 b* \) `/ b7 Q
[0 ~/ C% I& C. w) x* x6 c/ i' H
if( length (item i
; p& }2 M/ k6 t/ ^- o5 w[trade-record-all] of customer) > 3 )
" W z4 i' y, m d; e: s[+ v ~& M. q3 G; ]' E
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
; {. @% j$ k/ w$ t Y( j[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]$ W, s/ ]2 p- ^0 C* O! s* T/ g
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)] d3 D5 a" D. q
] }* W& Q2 q+ o/ w& m7 n
]8 _ K" x# A$ F$ _7 o$ b
set global-proportion note
8 _3 H' v0 l* L3 i]: I. |1 ], V3 K& @" Z
end
8 u# a4 v. M3 m! @0 }9 R) C. F. A9 |' p* P# ~
to do-trade
* ~: b# ~7 e6 x8 [7 G0 L5 \& H;;这个过程实际上是给双方作出评价的过程
' q6 f" C+ |$ S( R) L' z# n/ N- Wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
3 A& j( G$ f+ [* }- Z U6 }set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价* o. I: b: Z3 V
set trade-record-current lput(timer) trade-record-current
5 Z2 N% I, ^- D4 C; A; U* W;;评价时间. Q4 O7 Q3 u* h9 q
ask myself [
u- z, z$ q* p" Y [, Mupdate-local-reputation
4 r6 B% a6 Z" Z; u) ?: Eset trade-record-current lput([local-reputation] of myself) trade-record-current0 f9 k- o5 C6 @6 v0 b+ m
]& S" a: g: T; R" v" A/ r
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
6 C" s M. d$ t2 B5 B4 N9 ]' ?+ _: O$ T;;将此次交易的记录加入到trade-record-one中
* `* y8 T, d1 i- }set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
! B% }5 T: a; s: \& `* _) `' M, Vlet note (item 2 trade-record-current ), U% ]( u8 m1 H) f
set trade-record-current
" n6 m$ q ?3 G( ~0 y(replace-item 2 trade-record-current (item 3 trade-record-current))
0 k/ C, S4 e# |4 p# T, N7 dset trade-record-current
8 U) w9 N' \- y0 t0 {% W(replace-item 3 trade-record-current note)
0 K5 q; h7 Y( k0 I& K9 Q5 _' Z; s6 {3 \: P% B! G& n
, \0 A. |, N# Z, p- m% o2 Lask customer [4 W! h( S; S. G% `. y
update-local-reputation7 v6 Y7 @; ] a n7 e
set trade-record-current
3 C2 U5 K3 m! A! a6 v4 `# p3 i(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
4 v* x9 X. f b9 |]
) m7 _3 A, Q+ O- H! k: C: F* ~
: @: p7 K. I0 u: ^! ]
8 e) p# j6 d# a. @' u" i8 |) `) Q: v9 ^set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
/ L0 a$ X7 z* b" ^0 `3 ~& U4 |" t# T& c
# [: ]% b, v7 {% E, H" {$ w5 T2 P$ q( Fset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 ^8 q/ @1 O: P+ m6 s
;;将此次交易的记录加入到customer的trade-record-all中
, n% X4 t& N( p1 a0 S7 kend
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, B6 E2 ]# a& Q: s6 r) R( O& Kto update-local-reputation% d- s3 z6 {+ x* m
set [trade-record-one-len] of myself length [trade-record-one] of myself
+ I) I: K7 e' f) v: B }! V' B7 B% R |4 ^7 o2 @
: N$ `9 {, ^' w8 w% J;;if [trade-record-one-len] of myself > 3
% N( q. a- h+ r+ q e6 r; uupdate-neighbor-total$ k6 p- R# ?$ i, m7 d H
;;更新邻居节点的数目,在此进行
, D7 B @+ _. y0 D7 q qlet i 3* z3 ]. Q1 e0 p8 C2 U# \ b
let sum-time 0
1 @" ^: }3 e1 ^( M+ _& Y- awhile[i < [trade-record-one-len] of myself]
& [ {" s7 i& d; X% r[
' s2 C3 Q4 W- c( X3 Wset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
0 Q0 {% m) g+ J: o8 \$ D) nset i
7 F& A; _$ d: Y/ |! `( i + 1)
4 f1 ?5 l1 D+ Q$ ?3 T5 H$ N3 a' H s]
5 h k! r0 }$ q+ E, i" Hlet j 3& ^4 w8 H% d ~* _1 p: `
let sum-money 0
8 J0 G! V3 G: W7 Q) L1 qwhile[j < [trade-record-one-len] of myself]
: L9 u- p$ u* X+ J! R* e2 n ^" u[6 C, O( o2 [% ]6 x5 t& s
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) Z% S3 X, B7 G1 ]. x+ C1 e' K
set j
# o9 y- ?5 T# c0 R- i: a( j + 1)' f% r# y" [% r" O3 B/ Y' n. f
]) O3 D9 _! R4 g" \ @, p
let k 3' O2 h2 X" L+ k0 e- y& d
let power 0
+ K) {( @) B( G5 Y( \5 C" u) vlet local 05 X1 b0 P5 T H
while [k <[trade-record-one-len] of myself]8 W/ G5 F1 l# Z
[
7 k2 I- K7 O# ]; Q" m0 u, A: s' i: Zset 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)
8 P5 O5 i+ a" o% f4 {2 Iset k (k + 1)
; [7 C3 @$ D' p; Q]
# j% ~0 Q8 K% _( N9 r% u! h nset [local-reputation] of myself (local)) s7 g- R# m, }% E
end N. v& D1 G! m" ~! Y( d. N
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to update-neighbor-total
7 d- G3 T) }1 X1 _
! V& c9 j' ~! wif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
4 R# d4 z8 w% p2 D3 Z: n# q+ N& [6 ?6 U6 X& {+ v
; s W' I c+ U, O9 q: iend
# }! j K1 n. n6 u& m7 Q. Z. R" y- m+ n5 I2 B
to update-credibility-ijl 8 ]( Q: o0 a/ Q) [: _! h
- i) h& _- T: x7 \;;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。, }$ _% J: t# z0 U
let l 09 }8 w* ^4 |9 ?0 b4 p$ ?
while[ l < people ]
1 u5 @+ q- [6 J) k/ M- U;;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( J) J2 ?8 P' M0 ?) T; u
[
* k# o5 b0 D! s( F) [let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
7 G7 ]3 Y+ p7 Q0 Lif (trade-record-one-j-l-len > 3)" O# v" B$ X- |( J0 h
[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
. U6 \ o( \% S% k/ H/ F/ k: v+ `let i 3
3 \2 @( V; r2 I$ ]$ x& K/ zlet sum-time 0; g# q. m1 ~7 F% s, F9 {9 \
while[i < trade-record-one-len]! n; S5 Y, n/ J) h3 T8 i
[
1 Z( m5 b; ?. q' y& _set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
# b1 N% h- |$ f! D2 a2 Bset i0 d5 h7 _5 ^5 }! {- f$ T" Y
( i + 1)) A6 |9 R& h6 w$ t0 i3 }7 S
]8 D2 w% J/ n. b4 i8 J
let credibility-i-j-l 03 v* B h% c7 M9 J
;;i评价(j对jl的评价)
% a Y5 Y! p' f$ D/ k/ D- {$ c2 `let j 3
' c% r5 R5 q) b4 R3 }% v7 f1 nlet k 43 H- ^! `8 L( v
while[j < trade-record-one-len]
4 N/ X# S0 H/ l8 O' k[
5 M3 a2 [, y, P {$ c; |, q1 B' Jwhile [((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
8 i! @5 T" `; Q0 _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), u ]1 P ~/ ?* f$ ?8 C
set j% B( g( w- Z# N7 `8 d) r
( j + 1)
0 k" A6 ^8 Z: f1 O2 i5 u9 P1 F" g]
( ~7 Z4 {! F4 a( Uset [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 ))
; H# ^8 i1 n m* K; C+ E0 k. E" V
) h* v4 C$ ~% K8 i$ _1 H" F) W6 jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) J1 g; X, Z% s: Y;;及时更新i对l的评价质量的评价; |9 G" ~7 m, c5 [8 a6 K3 V
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]3 u0 P! u) L4 S4 u
set l (l + 1)
3 |1 b3 L9 D, M/ b6 S]9 L$ d( r3 F) }& w2 B
end
# }* I* u" B8 c# `. \. D J8 P+ V& H I+ [/ w
to update-credibility-list
S( _+ u9 e w4 ~& xlet i 07 X" l- A* u9 ~' u
while[i < people]( O( b5 k5 p: X# Y1 l1 ^* f
[$ b' n$ Z; [5 W1 K" G
let j 01 t$ C+ b8 M1 S' V, f9 A* G0 d
let note 0
0 T4 ?) q) @' O/ g$ Q. slet k 0
* @! k2 R- k! x6 Y# M;;计作出过评价的邻居节点的数目7 K$ L+ k) R, G0 \+ M
while[j < people]4 w6 Q0 l) P: N
[/ h: \ G& ?$ y2 `( N! ^! R" I
if (item j( [credibility] of turtle (i + 1)) != -1)
5 Q. U! W+ w8 d6 o$ j;;判断是否给本turtle的评价质量做出过评价的节点
) x* u1 f* y. \: O6 ?[set note (note + item j ([credibility]of turtle (i + 1)))8 l& t( Q0 x. H
;;*(exp (-(people - 2)))/(people - 2))]% w; `6 p, e! _
set k (k + 1)
3 K8 y" b) H$ M" }]2 e0 S, ^- E9 I& d; F
set j (j + 1): E. I+ X |" a, y& j |
]
0 z- ?2 ^+ { x: p2 oset note (note *(exp (- (1 / k)))/ k)8 U, ]# d `. A" k, j
set credibility-list (replace-item i credibility-list note)
1 ?* G4 D; g; D+ C. u/ @8 a$ f' qset i (i + 1)" b9 T( Q# | n; l# o6 z7 k
]
& i( ?, L$ d1 ~' qend
0 P7 n# b+ W5 U4 {2 w
1 h/ C4 T+ b6 T" K9 l( p2 ^to update-global-reputation-list0 ^8 W1 e, p1 r# l
let j 0
& N8 |0 F* ]$ p* M: ?/ G. @while[j < people]4 @% X% b. F4 u6 H7 [- [7 P2 R$ }
[- R$ }% m5 Q% u! u, E7 d$ B6 c
let new 0, o z/ K6 n- S9 y
;;暂存新的一个全局声誉
+ ?9 x4 I: e* N9 k7 ilet i 01 T* a$ M6 A) f7 C
let sum-money 0! k5 j! @/ v& Z/ i, @1 i
let credibility-money 0
: h- z* y3 `8 F: J8 z& Vwhile [i < people]
; r5 ?. O* e' t[
: Z: U# S5 W% |! M, nset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
# a1 j [& p, y& s' y) hset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))9 o& k9 R, j- H3 T
set i (i + 1)
& j( r- I3 O! O* p* g7 |: B]; c* h! w( {) p8 m/ R+ l E
let k 0' j4 [1 w7 z( E% [# O# }- \
let new1 0; b8 b+ C+ A; ]9 X6 H
while [k < people]
2 y& G6 D4 v3 K8 T[
( l: [+ B, W* @& W% r; l; J" Dset 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 t$ V; Z- `+ |; l8 h6 U# l( T
set k (k + 1)
7 _" V8 A' F2 L# e/ d) }6 r2 B! w]
1 t! j% U" x6 u. v, Bset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ' S* ]! _: T. J$ H5 H# h
set global-reputation-list (replace-item j global-reputation-list new)1 O# A, f, s" J) b/ K
set j (j + 1)' N/ X% Y8 N' g5 d {' J0 m
]4 N2 Q$ M O$ `
end3 v' J7 u8 l3 J' y4 @
' D7 P3 u+ t& c, z3 t! G1 D
- S @1 n6 y) j! ~
: h) f& F* u' vto get-color8 N2 f2 |$ r' J. t$ `. K2 A
1 ]% j' W1 ?: x, y$ p% L; t% B: ]set color blue
( A+ d ^8 d# v/ z6 C4 v+ O- Dend
# U6 [; s; L6 s: i5 e+ T% E0 s( C/ A6 N. i4 D
to poll-class7 F, @! K5 j3 d
end
" F$ p# N/ }0 o @ @# Z r+ R0 r$ e T; W' C; I* E
to setup-plot1
' y& Q6 B" k9 t k3 k: i8 @/ h+ l6 D4 u9 {
set-current-plot "Trends-of-Local-reputation"" K1 k1 ]3 N* s% W
7 d: P* ~! @, u% w& ]9 E% lset-plot-x-range 0 xmax
# c! M' v; M3 I$ l
1 i, g2 O% J$ {# @( {3 Hset-plot-y-range 0.0 ymax
& S8 ?! e' H. h& b" k+ b% Iend
2 h0 s( e& y' Z- }% c2 R$ M% o Y/ \& a- q ~2 J3 v# j
to setup-plot2
' w- J% D, t) b9 B% n2 E
, k' C4 X) h4 ~set-current-plot "Trends-of-global-reputation"- f6 S- | L$ e* K2 R" z. ?6 o# s
0 D" [, {9 `; ?: e& dset-plot-x-range 0 xmax
0 j$ \, T4 j/ s& g# }
, l3 G2 N* o5 `3 M6 P6 b. X. vset-plot-y-range 0.0 ymax
, k. C9 L2 O% H: y4 |. [end
; r- @2 q( C6 {( M: s+ s/ y S8 j4 o9 r, X9 N+ t* ^' y
to setup-plot3% O1 j0 }0 P! [' v4 j0 g1 k C4 Z
: |9 `1 g% W# b1 ]
set-current-plot "Trends-of-credibility"9 M- c7 T& j: y5 t/ v
, b; d0 {" d% N+ x6 ~) s I jset-plot-x-range 0 xmax
+ a1 T# ^' i# I, c2 k/ y6 P0 {1 E D
set-plot-y-range 0.0 ymax' t# D# l* P0 W9 X8 [: b7 [( N& z& r. {
end
1 l5 r* q4 W9 D/ L5 V* U
) K$ M( x7 t9 h& N+ Ito do-plots
" R; [5 h) [* n& q0 @" s0 l$ Z' aset-current-plot "Trends-of-Local-reputation"
8 H0 b4 x9 p Nset-current-plot-pen "Honest service"
* a; {& E$ b3 G& Mend
$ U( X2 |& `0 c1 J6 s
0 D/ [" ?7 T! D# ~8 E2 K7 E[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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