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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
' }; L0 K8 K0 w4 t! Lglobals[
4 C5 b( n- m9 s8 U2 R" }xmax1 M/ }0 |1 Q' U' t
ymax7 b4 E- N9 y, ~( W, J: I0 U) u
global-reputation-list o% D# E7 @" G* I
2 `; }1 J$ [- T+ m9 \/ h7 X8 Z;;每一个turtle的全局声誉都存在此LIST中
# \& x; W3 k( t5 \3 Pcredibility-list
) Y% i, u- w) B P+ R. Q; S;;每一个turtle的评价可信度! R1 J8 o8 r5 t, t
honest-service5 Q: K) B3 R: I8 Z: b$ h# b8 ^
unhonest-service
* Z% S- s2 F( M4 C$ R+ {0 ~! |oscillation, J$ |+ `) l: _1 U. `! p" Y& v
rand-dynamic8 i0 ~9 }9 [* U0 F( n
]) y: R+ j+ k8 N7 m: n$ n; X
% s& j' c( r. `) c# p# D7 P% ?
turtles-own[: T; e, i! U& }1 ]% j9 c
trade-record-all1 {1 s5 d3 Z Z) M9 H, {
;;a list of lists,由trade-record-one组成
' c3 D* X9 I/ n- ftrade-record-one+ C: t. ]' q" V8 j [/ x4 B% ^. x
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录. e* Q) p7 {, _3 b8 T* n2 w( I$ S9 w
; \! W) W5 O; 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]]( g3 a5 c, G8 U/ s
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]6 u) K7 s' k& }" f. U, [/ u+ Z9 `
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
6 [5 \' h, p* {/ T" Xneighbor-total4 i3 q" {# t* |* _7 s& n, K' j( l
;;记录该turtle的邻居节点的数目2 m# K+ _' V: A; f
trade-time
" ?5 L. O$ W# E& ~7 s;;当前发生交易的turtle的交易时间
c$ Q5 [$ x5 ^+ b% e/ [/ xappraise-give7 P8 w0 R2 k& f( z; g9 e
;;当前发生交易时给出的评价
; `7 a M/ F0 s0 v$ Z3 aappraise-receive
) q( ]: h, I/ W, ^; L;;当前发生交易时收到的评价& l; s+ j, F' l1 k- A
appraise-time
% f: S7 C+ G9 B: h% R;;当前发生交易时的评价时间
, X1 n7 }3 \) alocal-reputation-now;;此次交易后相对于对方turtle的局部声誉, S( D" O& G/ ~8 _$ P8 _
trade-times-total5 W1 ?6 q) b( R! P: \
;;与当前turtle的交易总次数
# i8 W$ W" M5 Utrade-money-total
& X' J5 c9 d, r/ B;;与当前turtle的交易总金额$ G& s9 x7 {' p4 b( n
local-reputation7 W0 _/ e9 ]% j2 g0 y! f; m8 h4 Y5 s
global-reputation$ t8 _9 j5 w" g$ B% v ?
credibility3 A# M7 }* J4 W2 W, h; M8 k& o2 r0 H
;;评价可信度,每次交易后都需要更新9 M1 p% \+ O6 z9 z
credibility-all
) q$ }9 L4 \+ U; u;;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# K2 H; k1 g" T* g# o0 b
9 W7 p; l* V2 C
;;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
( r I E2 X* X, t+ `6 I% Lcredibility-one
" O3 ^' q$ N% f" o' J |/ t;;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
- k& O% N8 I9 cglobal-proportion9 w y$ u! {) Q7 [
customer
% U4 y$ t) F b" L5 M: [9 U" scustomer-no
4 H' p# D" L& X9 o7 [, Htrust-ok2 F) N& I+ t% c7 ? Q
trade-record-one-len;;trade-record-one的长度
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" p) H( V$ w* e" f$ w
9 t% ^+ [0 P2 B$ ~# v: @, a0 {;;setup procedure
' s8 S' h. ]+ d: ~
+ t# D( o3 _0 W' R. u+ Y% r- }to setup
5 U) S( r. K6 }% P( c% H
2 N2 F& j( l. r# F1 ]8 x0 yca3 [. Y0 E/ d& S
7 N& J" U4 U$ Q; P, zinitialize-settings4 q9 e9 D( b! r5 L7 `/ p6 ~9 n
& I, \6 P( w# E+ z: I( F* z
crt people [setup-turtles]: {$ \# M* J% n/ F# i0 O6 l x* x0 S
4 ?4 H) L2 M$ Q% l+ oreset-timer& q7 h" S; ]1 _
" W, R, ~: u6 O: ^+ |1 Z* i R
poll-class4 k+ m. ]: H. V7 P0 N* u
5 l8 s6 Q& ~5 l5 A
setup-plots' U4 c* A% _/ r; E( M b
" k( o# |$ S% S6 Fdo-plots
* ]3 W3 p! k5 Cend5 U" B) V6 C8 N! W8 @# ^6 J8 {3 K% {+ H
5 Z2 C: ~/ g0 C' V/ |to initialize-settings
. A9 {# o; |( c9 k# J; D/ w2 r4 D8 R. A0 r1 t/ z7 `
set global-reputation-list []
1 C; p. a# ]5 F5 g7 G' ?3 x( [/ E8 u1 M4 H3 D2 _$ | ~8 x
set credibility-list n-values people [0.5]
7 _% S; z0 g7 }8 o( q0 O0 q$ H' n5 s
set honest-service 0" a8 [! e1 T0 L4 J9 r9 v
4 M$ ~: f8 V* X
set unhonest-service 0
0 W- V9 v- j8 ~ Q7 A, o5 _6 w8 G* S# x+ n, l0 q
set oscillation 00 \3 ~: N& t- n- S' M* |! L) V" V" _, q
6 s# v3 q/ U6 k6 m3 Gset rand-dynamic 0- F y* _7 q' Q- B; A
end
y5 u: n+ J2 E0 y" u8 C U X+ [6 N# M; Q8 |1 N+ }- }
to setup-turtles 5 x/ {/ Y6 L: b) Z' Y
set shape "person"
0 Q# w: A* \# t6 G" U6 s$ y) Zsetxy random-xcor random-ycor
7 | O1 Z, @3 f8 ]set trade-record-one [] G6 b* L/ t+ S: S
: Y$ I4 b4 Y$ V4 q0 a
set trade-record-all n-values people [(list (? + 1) 0 0)] 0 y6 q, R- v* G6 N! } Y
1 P2 l1 @ \0 B/ o6 R0 sset trade-record-current []
& |& @+ B7 W6 {! S! M" r' C; @set credibility-receive []2 n" M8 J+ \, I2 N' }1 L7 W! D
set local-reputation 0.5
; K! h* I$ m1 `: M. h1 v& Lset neighbor-total 0
$ [2 y4 f5 `) f$ i( Bset trade-times-total 0) |# ^* G) s2 s8 [
set trade-money-total 0 [9 |* E$ W! _, ^& J! S
set customer nobody
. Y: i$ ]1 j: _( p+ a! a: rset credibility-all n-values people [creat-credibility]8 w: ?1 B) x# c; H# c; R- }
set credibility n-values people [-1]$ w1 ~* `" D* j& d
get-color
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! J6 t6 h) a5 u+ E/ rend8 J) S0 e! X* @% A) u o2 \7 u
; L- {) [2 S5 g6 ?% [7 Oto-report creat-credibility' A( M1 d* H- s2 O i3 ?' J( y! B
report n-values people [0.5]/ P- J6 D) s- N5 o
end0 [* e# [: d4 K4 p7 t% ?# \! p
0 e2 e7 m0 r1 b) h( K
to setup-plots
5 e* p3 j& @! {, s' e. x- L
2 \$ o/ K9 x% u- o+ Q5 i8 R7 O, Wset xmax 30
% \5 f% O* t3 |( I7 N
; J3 G' D1 c6 c7 L9 [: I; nset ymax 1.0/ a" a3 k( p1 V v6 C' q( E
: S" X+ t2 d, w; l" t& I; D
clear-all-plots
% `5 ^: h/ D5 F {$ ~; e; D/ ^/ y6 h8 ^; i- H/ m% B
setup-plot1. E- L5 t3 s w" G" e3 V$ i' m
2 n' m" ^ ^. K( T( z; M' g; \setup-plot2, U% m4 O) r8 u, s* ~
: Y d9 @9 h. o# Y+ ~+ g
setup-plot3
3 @4 ~: t, L3 X6 j, b+ kend
9 |$ R: o$ U# j8 W( K; T* p5 A5 O2 C
;;run time procedures5 n, D% y8 t z8 @
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to go! U7 F- @& M" k0 P
) O! {* W8 `# f6 b E1 r/ d2 N: q
ask turtles [do-business]
- f6 g% m1 K7 X! W' b" R, Qend
% `/ v! ^8 _7 {6 l6 V
9 K7 n# S9 B7 S6 j( yto do-business
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+ V# p8 b! N4 B6 X9 jrt random 360' n( E0 X7 N% t
t) I* M, g3 X1 q7 lfd 1% Y- X5 K) G! Y Q3 v4 f
/ L( p U+ j* U* ^
ifelse(other turtles-here != nobody)[% g( _1 c2 ^1 C6 p1 Z; A7 r
5 \$ S! I# d4 U* J0 bset customer one-of other turtles-here
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;; set [customer] of customer myself( O& _* ]$ ]: O. _* s, \3 j
3 p; {# O, Z% D' x. D! }
set [trade-record-one] of self item (([who] of customer) - 1)
, W4 \6 R/ Z$ @[trade-record-all]of self
/ x/ z! e0 x2 `! n0 Z;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
3 b1 o" b4 b+ B8 z* n& ^8 k" T2 L' Q4 x) J9 e9 L
set [trade-record-one] of customer item (([who] of self) - 1)
) M P. S0 { T" D0 s[trade-record-all]of customer
( e8 {- D% j. U. `7 p3 d6 k- F9 L8 v
, v! }% R, s5 f$ O. L; G( g, I0 Kset [trade-record-one-len] of self length [trade-record-one] of self
4 @* W8 P; [4 B, D% i& L7 r
( d4 K& B4 e6 L) z/ jset trade-record-current( list (timer) (random money-upper-limit)). {# {$ Y0 g5 R1 p& E
- ~: b+ T6 W8 y/ q `( {( c
ask self [do-trust]" O X8 L1 }; Z# m
;;先求i对j的信任度
5 F, Z+ o) d2 S5 E' `& W
1 V" @1 N1 K- q x2 W. [if ([trust-ok] of self)9 e5 d, l* y5 C+ b. _' R; k+ Q( @
;;根据i对j的信任度来决定是否与j进行交易[
$ S8 a+ l, i) {- C; Y1 fask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
* P: {$ O' O; J
$ d# n! ~( p c6 J7 Z[ y) r5 [! h2 } W/ |9 |' H
7 f$ Z( Q! D; X; a4 ?0 O- g6 U& E& F! Vdo-trade1 m9 N: ^: K* i8 n4 B9 ]4 |
, s- D, G1 s3 E7 K# \$ Uupdate-credibility-ijl! m L. w0 ]( X: `/ j! {
8 s2 z# g) J0 b1 G1 G4 T& W/ K4 Wupdate-credibility-list6 E' K% Z- S$ @
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9 ~8 o' Z1 |+ g# N/ r. D P, k
update-global-reputation-list) w/ L) t8 |+ b0 E3 U
& p- Q: H+ S& c4 p. l! jpoll-class
- d" B3 ^3 K l# @ @3 ~+ {. L( c
' c6 z, A- `6 X: ?# Qget-color
" x6 z- U5 l7 K1 o$ }7 Z- f
+ l+ z5 P- Q1 X) \* J! f1 l# u+ ~/ k]]
( y. ` d8 q4 C/ P9 T# r" p0 ]& z" u% V
;;如果所得的信任度满足条件,则进行交易* q9 L6 q9 Y; e) S. h
5 f F# q3 w& W& \
[% f1 ?# m5 T# `4 V
4 y5 u, T! }8 R2 { f" d( c( S9 V art random 3608 W S* ?7 Y- G; w( x
8 `, M3 m2 |8 d3 I }* r0 m" ofd 1
& s& t/ u' \4 Y1 l: e; Q0 R! i$ D3 `; X# ]1 d
]) I- o0 z$ |/ A* {
3 w0 u% m9 R/ \& F
end9 U" |* k9 K: Q& p* ]+ ^
) E/ [6 M" {% I7 n; s$ Cto do-trust " G' H h# s: ]; v( L4 E
set trust-ok False0 G( C& `4 F. Z2 E% n1 u T
h- z8 ~) |- P' ?, H- K* n, f
8 F/ I: S! R8 @1 U, \: [6 q. Ilet max-trade-times 0
/ {% n7 V( z- ]9 Mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]8 k. X) D- s% R: h+ e
let max-trade-money 03 l- K4 @9 A9 L/ ?. j: |8 T6 }2 Q. |
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 y; t2 G5 G' l" ?" T" ?$ 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))
0 p5 u/ X% @4 y9 `1 d& B
9 o% y; ]. {; A! o; V0 O
/ v1 d6 i4 u& bget-global-proportion/ \( G: }7 @8 k
let trust-value
8 r3 [7 E/ K6 l1 r Qlocal-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 l+ D7 M8 v+ e7 r
if(trust-value > trade-trust-value)( ]1 ^, c0 Y$ ^ D$ |; F3 @
[set trust-ok true]$ C3 d. ^# k. c G
end$ a7 K+ k: f6 R: r; u
( g: V6 Q$ t4 O$ `5 x
to get-global-proportion+ f4 r& k' u2 G& h/ a& v; p- h
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
# j; y7 {5 W! F O0 m8 a- b; k1 _* o[set global-proportion 0]: t. R9 ]* @0 d* ^4 g
[let i 0
, \4 B% g# R. k; C5 v- |4 s* wlet sum-money 0' E p4 F* j( E# S' a& y ^5 n2 d
while[ i < people], m* o; d4 t) n+ R# F2 h
[0 i1 F) [& X& A- b
if( length (item i
. R4 [( b' U$ _$ H[trade-record-all] of customer) > 3 )
5 D8 r' Y0 \% m' E[
2 {& |& J( s: x, S* q9 cset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
) ?: z- B- n7 F7 F& N/ B/ v& Z]/ | {; u M. `: k+ N0 O. w
]
& H" T; R* u: @, X8 d, {8 s+ E# Elet j 0
( U8 r6 [6 ?& f8 U9 _let note 0
7 g6 K$ i6 b- [: Uwhile[ j < people]( q5 I' h0 p3 m+ |6 w
[
9 U2 ~1 Y& \& Y9 M4 f" }if( length (item i
: O0 ^6 O% ]2 J8 x: F% i2 F; i% b/ Y[trade-record-all] of customer) > 3 )
; N! e1 Q( _% X1 @. A[
u/ b' B* W* ~" P, t: }8 @ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
$ c2 v6 h. O) ^7 L) b# Q6 Q[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( [* }! H. V0 Q/ G+ A[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
$ z+ ?4 \% t9 []2 S1 f$ z% V' o1 I3 m
]
: O0 T; {4 P+ { }! Jset global-proportion note
$ P8 m% A+ k, C/ ?! L' \/ g]
# j3 F( h W7 z& vend7 `( h3 w; x7 c! F" j2 ?' Z
+ c& ^; r* M! W
to do-trade- J5 Z3 G$ R6 r: [2 S' h
;;这个过程实际上是给双方作出评价的过程# j1 ]+ Q6 E6 s) w) ~3 R
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
' W' g+ q/ r, l% Aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价3 }4 g" G+ C( z3 V. Z
set trade-record-current lput(timer) trade-record-current- G: T/ j( b8 i; b/ u+ s* z; R2 z
;;评价时间6 ^ k% |, P# u. b: G" v: x% P3 U2 m
ask myself [
+ d( k1 x( `# h9 }% Y! oupdate-local-reputation1 K9 `2 _7 q9 [
set trade-record-current lput([local-reputation] of myself) trade-record-current( \; b( `+ H0 e
]( i- |! q8 l, w8 V
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 k/ v( B6 `- a
;;将此次交易的记录加入到trade-record-one中
s1 Q {$ V# g% n" e& f% M; d8 t3 Mset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 J1 n% c$ r1 T) \; Z) O6 g) n' J
let note (item 2 trade-record-current )
: I# w. [' O W+ D; wset trade-record-current r, M' r% v! ~$ B2 }
(replace-item 2 trade-record-current (item 3 trade-record-current)), L% ^' m" D7 u# q# c
set trade-record-current
% Y1 U9 I+ A$ M/ P0 o: q(replace-item 3 trade-record-current note)1 ^8 }! n# V5 M: P/ M7 w
2 Y7 t& }! f7 l$ A, r! @# Q
0 M. V4 t. _( _9 b. }ask customer [: G6 y0 \0 e4 F
update-local-reputation6 w; |7 L8 `% u8 q1 @8 B# _
set trade-record-current
: c1 _" J/ o* z6 J, `; }- }% f; l(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
/ r$ \0 g. w5 t8 z# ^. C]6 Y5 h2 v: E1 s# @, F5 T" U2 s
1 E ]/ Y8 V1 a( @& j a: d# `7 e4 E8 E
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
& \, J/ j2 B7 k
7 M' h0 b$ t) H" G3 Iset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))- ^) T! N1 K% D! l: n& A
;;将此次交易的记录加入到customer的trade-record-all中6 }. f8 j1 F8 g; T/ q$ Y+ k
end
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to update-local-reputation
4 x$ P, n. e; r: i+ J( Fset [trade-record-one-len] of myself length [trade-record-one] of myself" M8 }, Y/ F: ^
9 T$ Z( A4 R/ c, ^+ R/ c* a& B% p# [" e/ |
;;if [trade-record-one-len] of myself > 3 $ L9 B- ^- H, ~" y( h: n$ t
update-neighbor-total- D" h) v; s! l
;;更新邻居节点的数目,在此进行
% s( p& M* {7 e3 D; X; Blet i 3( [* {" z+ h$ _, @8 G$ h$ b
let sum-time 0; b" F$ h6 g) w& L2 K. z y
while[i < [trade-record-one-len] of myself]1 i* `7 Z. G ?+ R9 r* K
[* _; O' b* c' r' `9 T$ }3 a
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )7 {$ w5 x7 p. _ [2 _6 N$ X
set i# c) V; }% B7 F+ w
( i + 1)
% b: K6 q2 z! Z- c2 N% E]
9 H5 Y! i3 u6 w( ~) dlet j 3
: ^/ o) f& d( R8 Zlet sum-money 0
, f% h/ s1 e' b7 D% j! k& Mwhile[j < [trade-record-one-len] of myself]$ i8 V0 h) n: k
[, U+ ~4 \4 h4 V( J
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)
5 v/ g- \/ n v1 u4 }set j
0 I. m" K8 y( ?' L( p! }( j + 1)5 X2 n( u" Q1 N" H7 \
]; J! F! f6 @3 U! S% v, ]8 p* F
let k 39 H- ^/ H" X* I3 \3 i$ v% s
let power 03 L, E+ G7 S% u5 u
let local 0
, h9 ~( w% M- N# m6 qwhile [k <[trade-record-one-len] of myself]& [/ F" k% B4 J$ D' Y
[
2 {, Q9 _$ I: u! G2 Oset 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)
) `- `& E# j, S; y4 i. n( \set k (k + 1)1 N( I" ^: `, T$ P! q( m" H. S- z
]; [& X T5 v8 l, ^7 }) K
set [local-reputation] of myself (local), F+ y' s& C) K& x1 O
end8 S% Q% _. F; ^6 ^* d! m8 G6 q% q
2 Z( p+ P) V) f0 e: s/ i
to update-neighbor-total8 E$ j1 R; v: E# c: r w
, z# ~% b3 D1 o
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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% `. p3 e4 |' R) W: E
end
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0 }0 N/ q* |* \7 U2 Yto update-credibility-ijl 8 ~7 l" u+ v% W. P5 Z1 H
# r& w, T. \7 N;;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。
: _1 G0 L0 g* g5 T) g# Plet l 0+ ]0 ~7 L5 T, |0 W- [
while[ l < people ]) r, x7 E0 K9 x/ j
;;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8 Y8 d5 {2 ^) j2 y0 {
[; s( i) b2 z, x+ L, k
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)) v- W! ?2 p+ h. F+ q, O
if (trade-record-one-j-l-len > 3) k; l( o. g& o& 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 ~! P) {& p) L9 j' B
let i 3
5 {9 R7 x D3 I# b+ E8 N) Ilet sum-time 0
& U0 O# {+ h$ ?, Vwhile[i < trade-record-one-len]
5 r/ r0 g) @4 M7 P2 E$ t' `[
: G) I) i5 o: C% eset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )" }# T; [+ \; i0 Y" x+ J5 g# @! w
set i
8 p/ d# k# F6 m# `, z( A( i + 1)& J5 F8 T1 D/ j y" G6 ]1 n! K* f
]
. z- b1 d4 b' K* o* j1 e5 A/ n- Olet credibility-i-j-l 00 E" \# Y3 E* o0 {+ ^! N1 W( p
;;i评价(j对jl的评价)$ ?- | h; Z$ c& t' p7 _
let j 32 j" Z1 p9 O" x3 a
let k 4
$ c5 M6 [7 w8 S7 b+ g/ Y/ mwhile[j < trade-record-one-len]
% h4 E3 t- D" a C[2 I2 F# y( s9 w a. u
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+ S) { U$ O4 y/ 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)
7 ^5 D/ Y" w, s/ B4 jset j4 O, G1 h9 Q( N! B4 E x
( j + 1)
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1 z/ K4 ], J) Z1 q8 g: z/ V) Y$ mset [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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# J0 l. t( _4 F! _2 }5 clet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); R# z) }- Y# H( L/ e4 w
;;及时更新i对l的评价质量的评价) u* i8 x4 Z+ b# b ?, h% r! E5 I0 f
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]& C9 g) K2 r( D
set l (l + 1)! S$ v; g$ j& E+ i
]% K; }3 a' z9 D$ b) n
end: q+ w8 n9 L M/ S! L3 x! z X
9 {1 L0 R! l. j$ S, _ _9 bto update-credibility-list0 M4 L/ _7 t0 {7 V" r
let i 06 d& s4 b1 Q# H n6 M' I6 ]* z
while[i < people]
( U; {' ]1 I) a6 |# Z4 v[
7 L4 ^$ L4 X1 _: ^( q: f, Z1 \let j 0' A# }# R: R9 S# o
let note 0
& j% ^6 B# \$ G2 Tlet k 0
! x! M4 A, e6 s D/ k;;计作出过评价的邻居节点的数目$ L1 O/ e5 T- ^3 m# V
while[j < people]
5 H6 ~; G! E$ ~2 f# A[
Y8 i/ g6 Z, Fif (item j( [credibility] of turtle (i + 1)) != -1)7 C" b1 g3 w2 O9 t& K9 j
;;判断是否给本turtle的评价质量做出过评价的节点: M) k2 f8 A: a
[set note (note + item j ([credibility]of turtle (i + 1))) l: ?. J% e5 v8 `
;;*(exp (-(people - 2)))/(people - 2))]+ Y$ k# A1 p" Z5 Z4 H4 j/ v
set k (k + 1)% ]- j) Z. Q& Y+ C3 R
]
% F7 H0 S" a& |* x" L! jset j (j + 1)& ^# z3 \. ^/ p' m z6 v4 O
]
" V/ {5 ]! I5 C3 t; Dset note (note *(exp (- (1 / k)))/ k)2 E% b1 t) d3 K5 s+ T6 @
set credibility-list (replace-item i credibility-list note)
. g, o6 E6 B: E& Q0 Mset i (i + 1)7 {( c; X# R" }. i1 T, E+ B
]
1 O a4 t# g& _: W0 Eend
9 a6 v: G2 w3 S
1 F0 l& B$ [. C5 sto update-global-reputation-list' ~; X. V2 S, r; c
let j 0
% Q6 d) r! f1 g8 O: @while[j < people]- `" {4 X5 q: {$ t7 H# N" X
[
, G1 ^7 _& D ]2 A9 |3 P0 `let new 0: O) o7 Z$ F& D' i* i) K
;;暂存新的一个全局声誉
" u6 |# V6 F. [: I/ s. {let i 0* \: R7 f5 q0 v7 ^+ A# z
let sum-money 0
) V( R M9 [2 W% llet credibility-money 0- F1 ]/ Q6 t* ?; B
while [i < people] M' t6 j3 @5 }* L
[
3 w; B9 W: \$ [( K- Aset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
2 E" x2 ~4 M+ q3 d$ X$ eset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
4 O: ~( N+ l& `" zset i (i + 1)
3 T" ~1 K* F l; o: r4 c/ m]; j, j5 ~' {1 ~/ a- |
let k 02 q* ]- O0 L7 a) _; p. q
let new1 07 `5 Q% q0 J" x: r) x/ {( n; P9 @
while [k < people]# o1 T- y0 [! X0 R$ m
[. h$ e0 t* J. R/ P4 ^
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)* _. c$ T2 E7 i& Z$ P$ A1 q
set k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) " m8 g V8 M. P3 K+ [" \4 e
set global-reputation-list (replace-item j global-reputation-list new)
. x3 a0 _6 _. r4 g }set j (j + 1)
4 Y8 m/ h2 D; I]
2 Q) Z- r* ?1 k# a* Nend
* v4 M1 j& h" k! W, _4 l
: }2 z0 T; h! V' _6 s2 q3 R* c: R$ c0 H$ \* y5 N1 _9 R
4 Y2 z: P) B! [# ?% ?to get-color
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- a; _% u5 h; _) Cset color blue4 I! g1 v9 `- s+ U9 _+ E- M! X
end
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) W/ y/ j* W$ K4 L3 q n- m+ G" Oto poll-class
+ g! ~1 {7 [9 {& X1 l9 `end
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to setup-plot1# c5 z% Z2 r% V) g; b
+ u- P4 U' o+ e) m4 E4 A
set-current-plot "Trends-of-Local-reputation"; ~+ g$ S: i. ?- v, w0 z% t2 p
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set-plot-x-range 0 xmax
3 i2 P! l) f6 w/ p/ b
4 y' h% C0 |) J! n* X1 Q! J: Gset-plot-y-range 0.0 ymax `& C, j3 ~7 Q7 g. z' d
end; D7 N/ I- b! ?1 y* }0 M
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to setup-plot2
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set-current-plot "Trends-of-global-reputation"
# E! U/ L8 y" A5 y' A# `. A! \! {* ]; x h" J: T' B
set-plot-x-range 0 xmax
. a' L8 P5 C& y9 c# ~/ u, [' C- N4 E8 `7 l0 H4 x! A, ~
set-plot-y-range 0.0 ymax0 N5 n/ @ b7 _. ?
end! S: r7 O) M( t
, Y5 o% }$ H8 a" r! O/ F& r% Y4 q
to setup-plot3
/ [: w) O: I/ O: Z, S& O6 i5 }- p, a, c1 }% G0 u
set-current-plot "Trends-of-credibility"3 d& {, _# A+ \: i3 R9 f. E* Z& M
+ ^, q) [# f8 Y
set-plot-x-range 0 xmax+ c: V1 j5 v& c. h- S1 m
2 W J$ k( v( f
set-plot-y-range 0.0 ymax* N. _. _# p5 g
end
1 ~8 F8 O1 V: A! D" H$ a7 [' B
& h- ]4 r5 b( F& Oto do-plots/ `: a' J5 F3 U9 q
set-current-plot "Trends-of-Local-reputation"
1 J8 w9 P; a* m1 [. F+ Iset-current-plot-pen "Honest service"9 T0 C l1 b8 d
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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