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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 O1 S3 ?6 _6 m0 G3 g1 }! P- F; Q
globals[0 r4 W) u0 k( |! r4 K! V
xmax
0 q. l, |* [/ p) `ymax
' O9 J" k* h3 p" I5 w8 e; |global-reputation-list
1 }& J1 Z6 x6 w. g+ L
7 X$ O5 L7 r2 n+ }$ ]( z! e;;每一个turtle的全局声誉都存在此LIST中
, C# ?& E0 V1 w0 }2 }5 P( Y% }5 Hcredibility-list7 e3 K- H* J2 a2 j2 r0 x
;;每一个turtle的评价可信度9 w8 V8 b/ Z2 F, c6 _$ ~8 i
honest-service
9 Z" ~& I! u9 k9 T2 k Dunhonest-service* v+ X8 s, S9 ]! v8 L5 H
oscillation
! B, l* j' d& @; jrand-dynamic7 O2 v) ]0 b+ o; F1 b
]( j! u) A5 c+ \7 P0 i2 s
" }; N" O% g0 O+ u+ d v a3 z. y1 ]turtles-own[
% U: b( e8 X4 o' gtrade-record-all
/ i% g" l4 z# G- s- p" c' l+ b; V;;a list of lists,由trade-record-one组成; X: @9 J1 k" G
trade-record-one
7 @' {4 s/ h1 C;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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" @3 e: K3 N W( ~+ T5 A;;[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]]% F: a0 `: i' f, \5 c4 }# w
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]
1 H" N) J, J1 K. ocredibility-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
, d. d5 z& R1 |/ y1 k2 X$ pneighbor-total8 O0 g3 x, q6 `" B7 u" A, R
;;记录该turtle的邻居节点的数目
w7 z" U, D) g8 A, D Ctrade-time: c4 E& c5 e5 ^6 b: h! U- I
;;当前发生交易的turtle的交易时间. l/ ^) l# i7 q
appraise-give
0 i+ b+ A, k6 I' M$ p7 r3 Z;;当前发生交易时给出的评价
/ c9 n) ]3 x* b! S( ^# Sappraise-receive7 n* g) x R a5 d" @/ i. @& a6 P
;;当前发生交易时收到的评价
9 L H+ q& R, F, S" Qappraise-time* S+ u+ r$ ?9 d/ ?% z# Z4 x# f& v, [! W
;;当前发生交易时的评价时间) q! G8 ]" {+ ~$ r' s* n! D4 G
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
+ |0 F8 N+ i! Xtrade-times-total: m9 Q+ W$ U" J4 s
;;与当前turtle的交易总次数+ p- E& v1 f( }% S
trade-money-total
' h0 t) \+ ^9 F9 M;;与当前turtle的交易总金额9 K, B# X# ~8 W
local-reputation3 e& o7 t+ {: o7 O4 y) u9 V
global-reputation
1 E& x7 c5 h+ N. \/ Acredibility+ b# D0 `4 o' G# v: q
;;评价可信度,每次交易后都需要更新
2 _% J: u9 R: S. V' a" `credibility-all( |) @ A% N8 C0 V/ s( N
;;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 f. ^/ M* M" w% _4 o9 n) T4 o8 Y8 X9 `. V' P
;;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& X/ q# v+ O6 Q/ r h4 O1 K
credibility-one& [8 I5 a" B6 B" P2 J) H
;;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
2 Y+ H$ y/ p$ ~, A; Cglobal-proportion
( ], |, u' a2 j7 @& N1 S8 \$ E# pcustomer$ ^* S+ I+ u9 J" G, V) r
customer-no7 e/ W. X* P6 j9 o7 n$ }! M5 W6 T+ ]
trust-ok
: q+ K0 [+ H6 F mtrade-record-one-len;;trade-record-one的长度: M5 N) c+ b6 T: t( u& s" x
]3 Y S E8 c) Z* T
2 X! L/ g9 n! k% o;;setup procedure
9 t' \! g3 V% k @# {0 @& w: h5 y' T% K. m1 J- i4 R1 }. M
to setup
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+ `9 ?+ K% G% t5 N
) D* q* I2 l8 S2 N2 @initialize-settings) `3 Y7 c: I# r+ K2 a E
1 q6 Q4 q, [8 I- Q* D% U! tcrt people [setup-turtles]/ {, R1 H+ z/ l; _
! K, Z! V2 i6 {1 k' z8 }$ U2 x% n& J4 @reset-timer) }$ b4 y' M4 n6 J( B/ \ J. Z% S
" N% l4 Y0 A% W& w- \' [1 \poll-class& u! L c' @) L z! M* g
/ y* B( Q) m' |' }
setup-plots
' k3 p% O Y* N1 r- O1 Z2 H) c; Q2 N2 T4 z- R. V+ `. `5 r
do-plots
0 w( e: M, I8 {* j* d6 {4 cend
' U/ f5 x" G. [# C. I. M" [" r6 [# x) A4 k7 P( @( R X2 G
to initialize-settings: I) m0 V* y. V7 u5 m
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set global-reputation-list []
+ z% t* I8 i/ y X9 [" K& U0 \$ G# a+ x0 A R5 w# [' F
set credibility-list n-values people [0.5]5 P/ n* B& |$ p/ \
- u( C( Q4 j9 K1 N9 kset honest-service 0' k$ F! K7 G6 L; ]
- U% c1 a( u: L9 I9 p9 Cset unhonest-service 0. D- t! F/ }0 t, M
3 o, t) \$ A/ E% Rset oscillation 0& ~2 s" k O7 t' s: h( n
' [& Q% t- k |1 X5 Z
set rand-dynamic 09 |! k7 o: d8 u: p4 [
end L" G* J4 m5 r( D4 d* Z4 |' y/ J
- s& i( F p. m9 m4 d; P' @0 Qto setup-turtles % T. W! W1 }7 B, C
set shape "person"
; J( j$ m. J u; ~" J6 msetxy random-xcor random-ycor; T* e7 c, _7 q9 v
set trade-record-one []' W. h; V9 `% i& ]. B
r* |- ~" h1 L3 M
set trade-record-all n-values people [(list (? + 1) 0 0)]
5 M& F9 |4 D7 p) u
: n8 }6 y9 i: O3 Mset trade-record-current []
) P4 l X; \ \. z) g( Y( k) bset credibility-receive []
% j, r( t1 E# X' H5 [; Qset local-reputation 0.5. ~8 Z" W ~- o
set neighbor-total 0& ^1 E% n: O/ k/ Q8 Y
set trade-times-total 0
9 x; B" [$ l; S/ R0 X0 o% @$ kset trade-money-total 0) \1 [1 O9 M" g* c/ N/ n
set customer nobody6 `% t: v, b H2 O6 k, d6 n! d
set credibility-all n-values people [creat-credibility]
# }" k* f' M( V8 ]9 i; rset credibility n-values people [-1] j2 r4 w0 y2 S7 n9 P5 k+ g
get-color/ v% d2 S. V* s$ T' h) x+ `
7 K/ i4 ]2 A' \2 v$ F9 I! Zend
& z/ N/ L: s& G& {' w9 V# r- A% B% v _/ I: a' @
to-report creat-credibility
! L0 H I5 z# m, u! ?# Kreport n-values people [0.5]* d, q' \3 o* l1 I) x
end5 {0 _9 G8 e, V) v' e7 ^
7 `! ~1 a! A3 |3 v' @' v7 N! k/ C
to setup-plots
. d8 |" \5 y0 O1 b) M( r1 F9 J( o5 g- Z
set xmax 30
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set ymax 1.0
, p8 Z; N; @" W- ]- b4 a
( C3 r' O2 _8 A# G+ c" Y( }clear-all-plots
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) L8 A( z3 b& o( G+ c f% u5 }& N# ksetup-plot1
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# d2 j) V/ F; h4 a" isetup-plot2
8 S7 u. g+ O8 a. k7 S
" k# `7 M! ?1 f5 Csetup-plot3
f3 w5 w5 X0 L( Y" f8 H. W( mend$ \% y% S7 r0 H
& M4 @* v+ _1 v7 N" B;;run time procedures
$ O* t" i: ^# \% _3 k" v
! X; l& e d- }6 N* I* d$ `& Sto go, s- U0 q8 v, ~6 p* F. V
0 x) ^: h, |9 Lask turtles [do-business]$ R" Y I, d" X: f. |, C3 t8 t
end$ q0 v8 j S0 |
( z/ s4 m5 g0 R7 p/ m$ L& s! f' P
to do-business
3 a1 s& ?9 j# U0 I* P+ @9 ~# k6 f0 U: D `( I' _: U- q
* w0 m$ G9 N5 |* ] e5 L2 M
rt random 3608 n6 ^9 ] l3 i- h9 ]
& B, k& w ?# o" }
fd 1
* U; d* s4 X9 U7 w# O4 ]
# Q4 m- B9 k. U8 M* `( Vifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here3 f+ n$ g0 m: S: u ] n' `
8 W2 g* }# C( Q& i;; set [customer] of customer myself
: F4 R1 D% T0 J8 q; p5 X* R; G
- B! J' j6 \! iset [trade-record-one] of self item (([who] of customer) - 1)
* R2 p4 L, ]1 J. Q7 N# [[trade-record-all]of self7 A1 R$ |- _& B& f. s$ s
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
6 P5 h1 ?, {' S7 X5 \2 M8 L[trade-record-all]of customer
! m% g. [; i4 [
* ` e9 m: H+ h- S: g, iset [trade-record-one-len] of self length [trade-record-one] of self. B- k0 P2 b8 R0 J2 ~5 V; s9 ?
5 x+ X6 K3 y# u2 r. B# Jset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]* ^9 ^/ L# C( h4 G( d" c/ p& q
;;先求i对j的信任度
; j- ~; `9 j- \7 t" E ?- S! a
+ G! O) I, Q, U5 dif ([trust-ok] of self)
' W1 C5 e, Q `;;根据i对j的信任度来决定是否与j进行交易[+ Z. J/ U2 r" @, b
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself6 k- O8 y( W3 S- c+ W) I
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[# V0 c$ u0 u0 A7 M( L9 C
) o7 w2 n6 C7 b; Udo-trade
3 j0 j3 t1 K) {2 r$ w
5 x1 p6 K3 O$ |: u4 Yupdate-credibility-ijl
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update-credibility-list
% u# P) f5 w/ [( r: N. D' _
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# j' h0 U# O0 p# _update-global-reputation-list3 y) D7 W3 t3 f% A6 i3 o
" a3 |- X J% J/ J* \
poll-class
' B# `* L0 t- Q% `5 ]2 R2 e: }
0 W5 D5 T3 a5 g7 mget-color
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]]6 j+ J9 L1 v, s0 R) a: z7 }
: \( W' A2 m: t# l9 ^" ];;如果所得的信任度满足条件,则进行交易
4 U9 A- ^" [ R2 \2 T' O: M6 |. o3 ?5 M
[% s; Q1 A; M' x; c# i" o( K; s6 b
0 b! K. w2 _. C2 u; \
rt random 3607 @) ^1 K! ?- u4 o f
6 q) d! r/ F5 l% o3 Bfd 1
5 I$ ~: N" t D3 _3 W$ C) K5 [' @0 _2 ~
]
* m) G4 F2 U4 @) c5 j, p& L: F' k1 h
end
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7 z4 |8 l7 m- ~3 I# W. w5 | Lto do-trust " m: z- r0 e( J3 I+ u
set trust-ok False
! I4 F' Q# N) a% i& e, [
9 y: L+ H3 V, a+ {; S% _$ M$ }6 {' R3 { I
let max-trade-times 08 v8 r" F @* D8 _9 @
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]! w2 I4 Q( ]0 T5 W4 L- s' a( s
let max-trade-money 0
# G; @7 T) g$ j6 Z% Gforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]7 b5 W0 |; |' A& I
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))/ U+ Q9 d# C9 s T+ p& h" ^
- P& y+ y* d: ? i1 [8 h' Y
% c* X- M! J' ]+ ?get-global-proportion
: C, i9 t' W8 p/ a! B3 U0 Olet trust-value
; b; F$ d0 O& tlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
& Y9 y5 Q3 z( v* s5 }% K: e2 L4 q D+ Rif(trust-value > trade-trust-value)
* j1 i- m3 B* {1 W# C[set trust-ok true]
4 j' R$ B; a8 u$ ?end, m- `/ d% y5 j& _
5 u+ N1 v- u$ K+ ?
to get-global-proportion
6 M5 ?8 A' T& Q7 B+ {ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3); ?# T# ~( z* S) c) o+ u
[set global-proportion 0]
8 ?% L! ?. F8 y+ k/ C' h, M6 E[let i 0" O1 h! B6 [' {
let sum-money 0; h* r1 c( J# [- q( O c; ^! o
while[ i < people] s( G' i4 X8 g/ P7 _
[8 i# m4 i# m" Q* z, S
if( length (item i* Z! n) O2 z; C$ ^
[trade-record-all] of customer) > 3 )
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set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
* \# ~" A! A# Z]
4 X! s4 Y5 g7 X& Y; g]
) Q$ {' h6 D3 C" w& }, I0 Tlet j 0
, }. @0 q* l" b: e T* Llet note 0" L* `4 r+ G2 K& e
while[ j < people]
, `9 v1 }3 v3 v! g[4 T/ [/ T+ b: D& H5 x- t0 P5 }
if( length (item i
$ K; z, k/ @% {[trade-record-all] of customer) > 3 )! f' Q0 }; y5 z) L5 {+ i( y8 Q
[- V2 C0 ?2 [- ^5 t9 z' n
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)0 w5 Z9 u* q' l: g. P+ B
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
3 \1 a0 c I2 J0 Q& c8 L+ w$ F+ Z[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)], \% p+ B7 q: p$ K
]4 c- A3 K0 C- o" q$ K( B
]
% B! f" @* z& Y% Z$ Wset global-proportion note
% C" S1 u# G9 u/ {3 j6 \% ~( p* _]
: G$ e- T# I! g3 }! e& L4 [% }" \% Lend& a7 E- u5 I9 |7 w: X4 m3 x
5 |6 C6 [6 t) k; u9 {( j* G& B
to do-trade
( u) o2 v3 Y& e4 w8 B( `; z;;这个过程实际上是给双方作出评价的过程
& @* x4 I) f+ h/ s2 v& N% nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
4 f5 l! U% l% F n) C! ?9 C9 n0 sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价; D6 V0 Z5 g+ b
set trade-record-current lput(timer) trade-record-current# _( Q+ s: y4 _0 N
;;评价时间
. @9 h# m d! _- t2 sask myself [
* A4 L U8 o& D0 w; Q! l- J, Iupdate-local-reputation
$ o- D v+ x* p; l2 zset trade-record-current lput([local-reputation] of myself) trade-record-current* B, W8 b4 O% N S% C$ p6 Y4 F4 C
]1 g# z: [, K! t
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself0 `% |0 m4 q9 @2 V9 B7 n; }/ f
;;将此次交易的记录加入到trade-record-one中
' c1 j1 z r. A2 A/ o, t7 H0 G0 W" J) lset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)' P* F4 a6 R: j
let note (item 2 trade-record-current )
5 d" ~ q5 e, ~- D1 Nset trade-record-current
: \0 s" `; r4 d, m8 \% ^' ?* A8 v. \(replace-item 2 trade-record-current (item 3 trade-record-current))9 E# X z; y3 F9 f! y9 @
set trade-record-current% Y5 d1 A, I; m# C* P( D5 z
(replace-item 3 trade-record-current note)
" h7 U# ~5 a( D- ?1 a/ F+ p
* ~- S0 v" {) o: Z3 }* a9 [, P, b" ?7 C
ask customer [
, t' G; T( Q/ f: ^* }. ^0 R5 K( tupdate-local-reputation. j4 q2 w! _8 O& ]! c0 M
set trade-record-current
9 U) L2 s( j& }" N* \! o(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
n- n4 k% \7 L0 Q]$ P ~5 C4 H# } Q# U
3 c; m) y. C2 b5 Q7 ]2 _2 D
) _0 \: g. \( y" F- xset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 Y3 l% g a: w, |& z
% S/ N" b7 r( {7 \' y6 Wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
% n( q9 z$ c! \; b# t( y;;将此次交易的记录加入到customer的trade-record-all中+ f; e G' i' Y& _0 |1 v
end$ P7 z& W% d6 ~2 f
9 V: i+ N" n# C9 l$ b* V
to update-local-reputation- Q. m" a. l3 ~1 z; S s
set [trade-record-one-len] of myself length [trade-record-one] of myself1 F$ x+ U+ O' ^( ]
" ^0 e6 v; |' e! @- r9 L M7 h$ E
1 g' v; ?6 B& F;;if [trade-record-one-len] of myself > 3
# M; z6 s8 \' Y0 W% D, F) gupdate-neighbor-total
5 m* B! c! A- {0 j;;更新邻居节点的数目,在此进行
" W' O' x3 @( a* ~& }5 glet i 3
; `# T; ~' u/ ~3 I' G+ K7 @let sum-time 04 N. t- Q$ W& `* J' E
while[i < [trade-record-one-len] of myself]! v6 o% o6 O; R) d- t
[3 L$ R# E! c3 ?) L5 o
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )9 e0 B4 J& u0 h0 k" F
set i. V' K& V( L5 M* H3 _* g3 Y
( i + 1)2 o0 N- u. b) X- F, H
]
/ e/ t. `1 |4 Z) l( blet j 3% U+ B; r& F5 q7 b
let sum-money 04 d& T1 T! h! T; [. c
while[j < [trade-record-one-len] of myself]
7 b8 n- [8 W4 j( R: _& S( b[
( V: d) G+ K' b5 F* D7 m" Rset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
: w; u9 G4 o5 o8 X6 N% Gset j s5 b( c' V4 E% n3 H0 A
( j + 1)
7 N$ @0 c4 O: []
1 o# W2 }& d+ ~! K2 k2 E6 B9 ylet k 3
* @" T/ y, g+ a! c6 l' h+ Wlet power 0" `. z* I, H a# x
let local 0
$ H' L4 S7 t2 ]/ g7 Z# p* q ?! ywhile [k <[trade-record-one-len] of myself]
( G: r' U d5 \1 O/ w" t8 F/ `[
. t, {0 J/ V; |4 _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) 3 j1 |; Y: {. \8 x/ t
set k (k + 1)
8 l# M& M& u; [- x]
! f, h# d" W+ ~: o7 _, N, H+ Z pset [local-reputation] of myself (local); v; U: w+ T9 @ J$ Y. u* W+ ` j
end! u# v( z; M% `4 v' P
* x; H1 T4 M; v5 b ?
to update-neighbor-total9 j5 U$ o0 a% \; V! F/ Z
& z( S2 j# S* F8 U& o! lif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
2 o, D! ?- M# o1 g- f
) x) a4 Y, c2 c1 t( P' M$ ^
) Y e# A5 t9 p. u/ y! Bend
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to update-credibility-ijl 7 z& a- c3 M6 x, I# O1 N# c
( D3 ?% f3 R2 W1 C1 T: Z
;;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。6 i5 {8 [* }, d! M0 k0 |7 C
let l 0
! O2 T) h b! cwhile[ l < people ]% d, r. V5 g" L2 `5 d; A7 B- K
;;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
7 e8 n0 s6 M6 n9 v! @ r[
4 d' z3 }; Z" R. O% ylet trade-record-one-j-l-len length item l ([trade-record-all] of customer)0 ^6 o, K5 Q) `$ [( p4 D
if (trade-record-one-j-l-len > 3)- b+ D4 ]; V# R. b) _& v
[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
" v8 V4 G" V$ x8 g3 s6 s( blet i 3, d# T ]5 h6 S" @
let sum-time 0
! J; M' R, M, W+ |while[i < trade-record-one-len]
3 w4 p& B3 s3 A[
$ J8 I! P5 V. A+ r4 ?+ X, nset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
- k8 u( q# Z5 |' |set i. O8 U* c8 A& } ^* t
( i + 1)# _7 K7 V% m) d% K" f
]
$ t P: n- X4 M9 M" Q& z1 s Hlet credibility-i-j-l 0) F. G0 ] E$ T0 D q; G; J
;;i评价(j对jl的评价)2 z% U1 @5 y) e
let j 35 ?. b# s- l6 P& w! C
let k 4) E6 t! I5 R) X
while[j < trade-record-one-len]
8 _* ^4 o" ]' B* E" y2 o) K[
8 w; `- V* ]8 Y3 s1 \4 Vwhile [((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- t( {2 h. U( `) K' `, M( s
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)7 K: k3 F; m) P9 g. S
set j7 E' |4 W/ n& q; t* n
( j + 1)
# k$ S" D1 x( e2 U% I& R, d]! k6 T9 w8 x2 r3 u5 @/ y
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 ))
, @; H' _9 w3 b- v/ `& W
8 b) a. F0 e5 J$ T# K* E
- x( j- v% K; R5 s: u+ Glet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
: M3 _$ M9 r! [! ];;及时更新i对l的评价质量的评价% k9 m2 p6 G) u6 p
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
+ m8 f( \& n! nset l (l + 1)7 h% I3 J2 l+ C( v: _! A! U
]! j9 k9 k0 v( ^, H
end8 ?/ L! m: y' u: }! S6 S
( o* C2 T& m7 @5 n3 \6 v1 j3 X, v
to update-credibility-list$ n4 {; S+ @* [
let i 0% u+ I; }6 _5 Z% {# k5 ^
while[i < people]
: u1 @6 A2 q u, ][! V- J6 a: O) s$ A( r
let j 06 y4 O. t4 k" L8 q' P
let note 0
4 l. A1 ], ~. l( {0 L$ h6 ?$ D/ v9 x9 nlet k 0
# P. N t! ~6 G* a0 \ e, x;;计作出过评价的邻居节点的数目
) A$ z, e# Z4 I- T& S5 t4 f5 |* l; Cwhile[j < people]( ]6 M* k2 I t6 R2 I- l
[1 _, }! r/ a v& I
if (item j( [credibility] of turtle (i + 1)) != -1)1 T v1 X( _- H) L. x& _% S# Y" l
;;判断是否给本turtle的评价质量做出过评价的节点9 [( k1 F1 f$ o
[set note (note + item j ([credibility]of turtle (i + 1)))& s0 T* A. S( q6 {1 \& ~
;;*(exp (-(people - 2)))/(people - 2))], V5 W9 V+ w( f2 ~; U. P
set k (k + 1)1 e+ B8 t' Y% x* \8 N% r
]+ D0 L* e. j% n
set j (j + 1)$ a: U, Y+ m- y' A& {
]
" [9 ~' v4 v0 d( [# |; s {set note (note *(exp (- (1 / k)))/ k)/ w* s! i4 a, m% V
set credibility-list (replace-item i credibility-list note)
- q0 ?1 u: ?. k+ F9 q0 Rset i (i + 1)
- b; j$ r4 \" J% `]0 m( S& @& ]5 [1 P# e$ |# W u! x
end: r# w( V% p! Y' P
4 W0 z3 _, v* D' [. S
to update-global-reputation-list3 k( J4 d- @, u, W
let j 08 W/ d1 t" Y `% b9 ]' {2 o6 I+ S
while[j < people] a. }+ _7 D- `* R X3 p% E9 c
[
2 P I" W V ?let new 0! z% k, v- |% y; _
;;暂存新的一个全局声誉
, q5 p( L6 F% t" hlet i 0; a/ X/ @4 A v% C6 J* o
let sum-money 0& V. u6 q, _ n/ Y: ?4 [: a6 c
let credibility-money 03 l' F( t8 E% ~7 @& R# D3 R
while [i < people] ?# K6 K1 {9 V# @9 `' E: V
[
* x6 e/ N5 g& o: K6 J' mset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
* O$ q2 k) h) a2 |) ?7 b$ N8 F( w2 Gset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
4 j2 f0 T, u+ H* c V% {7 ]set i (i + 1)
" L% U3 Z; q) j% V) c9 _]4 P$ |0 r. \7 P. ?% O$ ^
let k 0) L: [9 O: z* v; S9 C {6 X
let new1 05 A/ o7 H. ]; ~( r9 g. K
while [k < people]
4 l9 A# z% E: s F v[9 M7 N; C) u {. {$ p" P, L
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)
! e; s# O- }& j! e' P; q) T0 {set k (k + 1)
- {& K" K2 {5 @]; r/ D4 B# t0 D) }
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
+ _; s+ j- P( tset global-reputation-list (replace-item j global-reputation-list new): H4 q* _, V: O9 ]; Q$ f, i& S
set j (j + 1)/ H! G' ~; ~; x! x% }4 g! t
]
$ b5 b' u' ~1 d4 U/ T4 G# o! Xend y7 ?7 L+ i. H* U
; b. s5 y! @: L* z
% T/ f8 M& f r/ b. k$ @
% ~4 V/ x6 d1 \9 d) w _* M2 b
to get-color
# r+ _6 k- B/ L! Y. j( j. O% A% O" K% u/ t
set color blue/ { U7 ?* Z: r3 _& P0 Y% m6 w
end
: u( ?9 Z# Y) `1 |
' L+ ?& a( ?- ~4 N* y7 ato poll-class
! F9 O0 D( ^" R8 m% d/ k& R: zend5 s; k b4 {& B
2 A& U: l6 C: U9 A& @. Hto setup-plot1
- z/ @3 ]" y3 p2 S$ @0 h1 w9 Z( u0 S, L
set-current-plot "Trends-of-Local-reputation"6 j* F. R" N7 G3 e' K; C+ G
& W2 ~* K$ s2 A/ u" J9 h) U
set-plot-x-range 0 xmax% j) a% `/ t F( }3 H
: H6 j0 r. F3 z {+ [set-plot-y-range 0.0 ymax8 Q, F( `9 k" v) l, I; q/ Y
end
6 }) ?5 u) [$ `$ ]
+ P3 n5 f( U# j B5 H+ E2 h$ pto setup-plot25 h. F( o+ P+ q* `! ]
- @& Y; }5 \7 r/ D0 t* ]; Z
set-current-plot "Trends-of-global-reputation"
( o7 ?4 S6 a0 y6 H/ q
) \* x( \0 J. jset-plot-x-range 0 xmax
3 x7 q% A' i- n4 y
& Y) a! R8 j, a* M8 Q( Dset-plot-y-range 0.0 ymax( e5 B, X9 A& i( j
end. Q& V) v7 O4 q+ `( z1 B" K
7 f- S# w+ a2 e, o
to setup-plot3
3 f9 _% |. B& t( x( E) `% ~4 W# I3 k4 r- `0 \9 I/ p8 S% Y# p
set-current-plot "Trends-of-credibility"
3 r9 Y2 x/ g0 V s' d
# s; U- |; T: j2 w+ K0 ^set-plot-x-range 0 xmax7 t+ l; u; M9 b3 \
o* ?. V% P7 x6 uset-plot-y-range 0.0 ymax' T- J: h. d% ]0 K
end
$ H0 ?; J! K( q% R2 Z
0 k* I' G) S2 x$ E2 Q4 f8 Ato do-plots
4 d: _" s; j: wset-current-plot "Trends-of-Local-reputation"+ W! p8 u* m" w' O) d6 u
set-current-plot-pen "Honest service"
0 G' N& Z4 }9 ]; X; cend3 i% C3 B; j" w5 q$ C' E
; h, o7 b- i# d5 }# `! m: @7 a
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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