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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 c6 S' q' i4 Q+ h- [+ X* e" E1 }
globals[
7 R( Y1 d( B1 V6 ~xmax* Q. l: M3 B( Q3 ?& ~' }
ymax# @6 J$ Q! N/ U# l' r. y
global-reputation-list3 K" T/ u# E5 x8 O1 h) ^
, j# a0 x. }9 N;;每一个turtle的全局声誉都存在此LIST中
" S- C+ h+ x$ }: z' j9 [credibility-list
2 G T7 e9 w+ P3 a# n, I6 _;;每一个turtle的评价可信度6 O" n* v$ G2 d. i% r8 s
honest-service
7 s; d2 v" A- h- wunhonest-service
3 Z# i8 i" S5 k+ |- d4 qoscillation
+ y5 M: G0 |0 T7 Z: Z9 B) Grand-dynamic
& ]# Q1 d6 ~7 ^7 ^* J" o$ R5 @) j# |]. b' Y2 z- _* Z2 d# R( v
- R M4 P5 K" K
turtles-own[
5 {: [$ e6 W1 U, otrade-record-all
% F+ S" h' q, U) W;;a list of lists,由trade-record-one组成
. ^ j2 W* k" `trade-record-one* Y) S( I) o' G1 j7 w8 _
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
- E5 K: j( v( p* N s, Z3 Y
# K' ^8 {7 m6 z6 J" Z7 `# j9 _4 \( };;[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]]
! P3 K, a0 M" atrade-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]
& O# L7 e2 ~3 H; g9 Mcredibility-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list5 K, w. ~6 v* M' |/ K6 Y1 n) M C
neighbor-total; {4 C" X6 A' t# v/ }
;;记录该turtle的邻居节点的数目
2 N7 w% K2 A6 Z a; Z9 m8 V8 gtrade-time
, r4 h. l T6 M2 O7 c( I5 W& ?;;当前发生交易的turtle的交易时间
3 A6 S! a6 q9 M: \2 H5 `- Pappraise-give7 [0 r! B6 X2 y* \" n' K
;;当前发生交易时给出的评价
: U& K6 y1 J- Sappraise-receive
# j$ l( E, m( M" p2 P' H7 ^;;当前发生交易时收到的评价) [8 ?7 q% s4 E1 Q! ~9 e- l
appraise-time
& M, b6 b3 b5 d* n8 N;;当前发生交易时的评价时间# E5 f1 @& L! b. L! i
local-reputation-now;;此次交易后相对于对方turtle的局部声誉1 m( W9 P/ A: }& M! o
trade-times-total7 |7 N: `* x! {' |* g& g6 {
;;与当前turtle的交易总次数& J$ S2 y/ G$ O- ~
trade-money-total
) h# c1 w3 f2 v/ \* L9 P, ]3 K X;;与当前turtle的交易总金额
. [& a- @6 u* |1 hlocal-reputation" v% }9 l" c2 x& f, f
global-reputation
9 b7 G$ y* O% ]/ ~credibility
1 X3 }' Z# i) S;;评价可信度,每次交易后都需要更新# s) ^9 A2 V3 v, M$ Q- a, I7 {- g
credibility-all
5 L5 z7 \$ v+ n- A9 Y% Z1 H6 b;;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
6 Y: l$ w: W' ]# v. c9 Y
. i. ^# c* Y! @/ ?* R+ [;;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
9 H7 k7 M4 A& k- mcredibility-one" `9 D; m. @' 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% O5 E6 x9 I1 v
global-proportion' m0 ]' ]# G" j q0 i; l: i) p
customer
0 w* |% ~/ ^+ J) O" p6 \9 acustomer-no, `. t. t0 }9 S( h( \8 _4 r
trust-ok
: {; y& L3 n! Q9 a @. xtrade-record-one-len;;trade-record-one的长度
! V: W# h# Z9 k8 H7 g2 m]9 z& a2 u) E2 M' T5 r
' p" X- b: H. z3 X2 X;;setup procedure
. V2 g8 Q4 F/ ~ k3 a2 P5 [. e: Y2 b O+ d( ^; w8 m/ ^5 F
to setup. E( ?/ L3 ]/ b& ?$ J+ g N
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ca4 \/ H1 Q' A- s4 K
# Q% S0 W9 a# X! Finitialize-settings
& b* ^' O$ F0 A6 |+ U, P% f1 \0 r9 s3 e7 X; L
crt people [setup-turtles]4 d# e" y0 @( x' r8 j+ X
; M7 U' S8 F- b* _2 G, }5 areset-timer
' W2 K% ^, ^# i) F/ c3 x
& s( Q2 j" y; f; h; n8 Npoll-class
6 R* c" X7 w0 @2 `9 P8 q
, F/ b9 X! E/ R" @setup-plots
8 h7 A1 T! \2 G# E+ F/ f% v* d9 \, N% _# p% n. K/ s# f
do-plots
( M# i/ M4 m% }- f, Send
" M! p% n; k6 ], |' P. ?
# q. ~! }1 B C8 n, ?* W3 D# Ito initialize-settings! `2 T, g, z" ]0 ~
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set global-reputation-list []
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set credibility-list n-values people [0.5]
2 |5 N- J; D6 d ^4 a1 D, Y# E0 x' \
! B7 C- f7 c6 z. W4 ~ H! pset honest-service 00 W: U3 o* M, [% A5 z
% T5 m/ b0 `- p+ I
set unhonest-service 0
3 i" u% u: {! a, v: X
/ Y# Z1 P" \" O( rset oscillation 0
$ v/ B- O# h4 ^
& O$ n9 z5 U5 r. Jset rand-dynamic 0
6 X# o5 Q2 _0 f" B& P% S& Yend9 c7 | B0 I8 k9 O- U+ ^" w
& G3 ]- A, L7 u# jto setup-turtles
% P# `9 [7 r+ ]5 \* B/ |set shape "person"- S+ ~$ k: n' I! J
setxy random-xcor random-ycor
( w! S6 w. e9 Dset trade-record-one []
- a! O* P( a b0 X h+ q& V
' \1 k. [* @+ {0 R- lset trade-record-all n-values people [(list (? + 1) 0 0)] . k, L4 D4 p4 y9 v' ^# v
9 L5 T7 c7 D" Q* t/ S3 N2 uset trade-record-current []
! [( T5 M+ z% ^2 h8 W) @set credibility-receive []; t4 c- I) W H: T8 z% p+ P4 q
set local-reputation 0.5
" l) _ e5 W5 M8 W, Q7 U: [ yset neighbor-total 0$ u% o B! w/ G# H' Q
set trade-times-total 0( A- R$ \ g2 u
set trade-money-total 0
% k- o, L! l( q7 k/ jset customer nobody
1 L+ t% s, ?- ?$ E: ~+ P' d$ Mset credibility-all n-values people [creat-credibility] a/ f9 J0 X; F) `; T
set credibility n-values people [-1]7 p2 d2 t5 x/ W1 a
get-color- |" A, _* k& Z0 k) z8 p
4 v; d" n% O6 N8 x
end$ M, b% P+ A! Y; B& P( x Q& s) H
) O' G" b# Q$ M) Qto-report creat-credibility, @& T+ ^5 i8 ^% M$ Y Z' }0 P
report n-values people [0.5]
8 l# u& p" t1 w/ M! X2 X, }end
& _" T' Z$ x# ^9 O; ?# \* R6 p
, @5 u8 m. M) T- |% @- dto setup-plots
% ` ]* ]# ] p& t; A
; a& i& x4 T( qset xmax 30
4 |4 \/ q4 t% N" h2 _5 P I. e
" o. g1 A1 p4 s- o+ ^$ m7 |set ymax 1.0* ^ x9 E) c( k: I% F% G
" \% b( R: w. N' ~2 `; Aclear-all-plots
3 ]8 \8 ` I } ?, G; {: U( J s% \' Z! L1 B' d3 e
setup-plot13 i4 P9 D0 l3 z6 @7 L; I U
& R B2 e) r+ zsetup-plot2
! }+ d2 j8 i. w/ l; I
0 r( y% @& [8 u9 g# s3 J. `setup-plot3
2 Y( o( z, a) ] `# f+ Lend8 Z* |8 [/ U6 @+ s- \$ @1 f& Y
7 u: h5 i( x+ s/ ];;run time procedures
: V* Z" C4 W" M+ }
( u1 E, H5 A, B3 z5 R. nto go
/ i3 \" f/ d* B* ^. r4 a
( p8 E; B+ c* X$ Kask turtles [do-business]8 V! n7 q" ?' }' o
end9 z" N! e4 \8 v, J, y3 V* s- j/ |
" O. O' M4 `5 pto do-business
' Y7 } E, M- D; a' } N/ ?, @! s& |2 t* }8 T9 B, L
% N) o4 d& I2 Q* d. [rt random 360' `8 |9 M H( v
8 A( Q' |2 F: _. X
fd 1
1 M" s( s$ r- c* P7 R" R, `! M# d; c# I2 U1 W) C& t" P9 ~
ifelse(other turtles-here != nobody)[/ g8 c" f7 ~- u' L# ~2 s
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set customer one-of other turtles-here0 ?6 |# ~1 ^5 O& @7 b
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;; set [customer] of customer myself& Z8 q4 T$ m* K: i3 M: h
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set [trade-record-one] of self item (([who] of customer) - 1)
& _$ v! l1 S: t P" F- {8 u[trade-record-all]of self
/ X2 k2 H7 O! `3 ~% ~/ H3 J;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
* a; J' V0 c- o1 y& [8 h2 J8 q* m$ j
set [trade-record-one] of customer item (([who] of self) - 1)8 d# r7 ~+ f5 O9 b# F
[trade-record-all]of customer1 i! g, N1 E% l4 [5 _5 A6 V* r
( C2 ^+ W0 t X# V
set [trade-record-one-len] of self length [trade-record-one] of self
; j8 C! I, l" F. N5 z+ A6 e5 T- g% |* y5 ~) E) E/ B
set trade-record-current( list (timer) (random money-upper-limit)). }, `: y3 B9 K' X- |/ V9 n: ?
5 ]( `* [8 @, g" I7 @$ N3 v# q
ask self [do-trust]
' A$ K" x6 h, U9 F2 m0 }; p) N;;先求i对j的信任度: g3 P9 {; T4 L, x Y2 D
" a4 Y( K/ R5 d$ T
if ([trust-ok] of self)
' O- M, d. @9 l* W' e;;根据i对j的信任度来决定是否与j进行交易[
; X3 r! ?0 t+ D0 a% o! u2 m3 }ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
4 S7 `, {6 C: p; ?! m
8 {8 c, D- e4 Q3 ?8 P2 h1 x! O l[
& K! z! O$ n" J
2 E7 H7 q% \% h; g4 Jdo-trade
5 @) H! K6 ]& I9 R0 H L+ M+ H2 {* b6 Z( I
update-credibility-ijl& E1 c( ]6 ]0 K
/ G( C ` q, l. vupdate-credibility-list
0 l- J* `. ]) K8 O: Q$ |( D, U7 J% H# U* t
0 c8 ]2 k" O$ S; i" d' G' ?) t& Yupdate-global-reputation-list
+ H Y5 L! J1 N. d* k
/ s. e4 O/ e) ?! m) `/ Mpoll-class
# G7 f1 c/ A6 f" G
4 c% V* ]. x) h% vget-color1 S6 ~" I3 z+ B1 @
7 Q. w& }$ N# `/ s8 ~/ w
]]
! o; g) K8 W# C1 I# P I- c% T7 ~: x* R3 ^/ `
;;如果所得的信任度满足条件,则进行交易0 m- t8 J! p& r+ I
) y* j- N6 A0 J5 u% c( W[9 h& x3 \. N$ v2 F5 O: h4 a
& l' O, [/ d) i0 ?# c4 e9 D8 z: {
rt random 360, B- b+ v. M+ i% [& a
$ N' W$ E9 Y( n4 \2 }* q
fd 1
% C% U; v( b! [) x* q$ f% g+ F. }) m( a9 E- Y9 [! Q
]
' d, h5 ]2 K1 U/ ]4 M& C
9 b: C) L: J. Iend% p3 h- n! ~" L/ V" X
8 X0 g0 R" Q5 B) S
to do-trust ' G. a# R2 W6 }5 r. i' u6 _
set trust-ok False$ {) u: ~9 r _0 g# I6 f
1 E% Y& ]# c; j% p! {9 ]2 g/ Y* _/ b" x/ t6 c8 \
let max-trade-times 0
8 \- F4 I2 }; t% h+ w& B- V' Zforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
) u. Y L0 ?: T$ Alet max-trade-money 08 B; ~* _7 H; I0 B
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
6 \9 A! V% |" J7 ?( Mlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 B( T. C1 \" M9 E/ Q9 s( d3 @6 i
$ ?6 d; j |) Y$ h8 |, z: w7 s4 f/ V7 e
get-global-proportion
/ P' I- V8 E" H' X; D5 nlet trust-value: s1 [% P& ?, \7 t' e) q/ 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)
0 \! P. W K5 T( D% d8 qif(trust-value > trade-trust-value)
f _$ T8 v* y; p; ^$ N[set trust-ok true]
! A/ O* |: i3 H/ I7 i- Send9 [, R r) a, i, @. ~3 j
# v, s7 Q7 R2 m/ l- a
to get-global-proportion2 Q/ u( ~! M3 E% e b2 T
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
: w1 f6 X* B0 O$ y2 C0 j) t[set global-proportion 0]
: U% U1 j9 v" T- X[let i 0 ]* n: z" k5 _" O3 ]! f; p
let sum-money 0
% N: H) t# Z8 \3 Nwhile[ i < people]+ l5 T. }* Z! V& t: Q
[9 U# m5 M0 A3 c) A: D& G3 t
if( length (item i
$ [2 X7 z" \5 H0 w6 @, E[trade-record-all] of customer) > 3 )
7 M4 k+ d7 u/ i! v# D2 p" `' ]: X[( S, u( x) Q# Y5 b @
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
7 d1 d7 P2 \3 t2 H2 x] F" B5 l9 [( ]' T$ }" o
]
( Z1 T- `$ a K3 L( `0 Olet j 0
" P0 i! x! i0 F. l7 clet note 0
/ ]1 p0 ?! M& t. [# t1 _8 `while[ j < people]
3 ?1 p5 ]$ q; L5 p0 L7 d ~[
/ b d2 Q, a( U7 Y7 d- q( f6 H0 lif( length (item i( }7 Z/ A# C9 r$ V. D; @
[trade-record-all] of customer) > 3 )* ~7 r5 A5 W- k/ [& D& l+ ?
[
/ Z7 h+ ~( D& O; K& mifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
8 G, e& x) }1 a; I[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* t* {# K3 G P) b+ o[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
" g. D" A& ]& a]/ q$ v! M8 {/ P G3 o0 Z4 W- e4 i( Y& U
]
9 L' \# D$ Z! l2 S5 K0 t4 {set global-proportion note
7 X4 N- V7 P' ~( Q& ~; Q]2 f- ]6 K3 W: r6 M
end/ }: R5 ^( J* `
- a: p5 ^( V/ L& d$ S. ~9 \ E* wto do-trade1 ^% _. S! r* ~ }9 f. z6 G$ y
;;这个过程实际上是给双方作出评价的过程( Z: k' w0 W# `9 ` y) E
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
' B k& U# A. r4 m! S' Wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
1 X% _ e) J1 h3 ~" ]set trade-record-current lput(timer) trade-record-current
2 A9 ]3 h) p! K! K;;评价时间
9 X1 |6 `% E6 T5 Z( J8 cask myself [ C- q* G( D* w$ |7 _8 a1 e2 n1 l
update-local-reputation! ]' F( _) _& c: k
set trade-record-current lput([local-reputation] of myself) trade-record-current4 \& h& b, U' i7 s, [, g6 c, O4 h
]5 {, K, I2 r5 M' l
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself3 Z' O0 [2 H' L: R
;;将此次交易的记录加入到trade-record-one中
! Y) ^, ^+ e6 J7 `4 eset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)/ n+ e$ E7 i$ k4 u( {
let note (item 2 trade-record-current )
6 e" V9 p) H; p& _; O* Bset trade-record-current
- j6 U& W/ W }) p(replace-item 2 trade-record-current (item 3 trade-record-current))
5 M" `& X- K% I3 Z) L2 A3 ?2 b Yset trade-record-current
{1 e& ?( @' P1 H(replace-item 3 trade-record-current note)$ Q; L3 I7 d0 I1 S1 c2 C
4 U& g9 J; X: ^: w5 C5 u0 v: I2 @" ?3 K/ [. q
ask customer [# P8 u. z0 O5 G0 t( X* V# i9 }
update-local-reputation8 y! c$ m) w% ?; i! U4 Z$ B+ Z
set trade-record-current6 j4 D. d* u* U6 _7 R& W1 g
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
9 W' Y9 g [. ?1 r]
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0 i' T9 y3 I( o# \: ~set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer6 S' |% ~+ L: v2 e4 o& w( X% K
3 Z2 J: o0 D9 A6 C# W8 w2 y- l0 X; ^
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" W- k+ f; L8 E4 U
;;将此次交易的记录加入到customer的trade-record-all中
! U! ?% I0 x' h: s( N6 d0 v/ c3 fend
% Y0 E) ? c2 t- r. K2 j" ^1 h7 p, D. O- R3 s
to update-local-reputation9 |- ]( `8 z& o" c' ]& ~; G* B7 s
set [trade-record-one-len] of myself length [trade-record-one] of myself) [2 R" q/ E s5 i, W) a
0 Y* Y! t# l8 u' y$ F' i
2 q) \- P- y+ g;;if [trade-record-one-len] of myself > 3
. V) y! t+ Z' k% ^# Aupdate-neighbor-total; b: A# @; L$ V
;;更新邻居节点的数目,在此进行3 h4 y( x( Y/ S# `
let i 36 k7 q4 g7 S# v0 G6 J' x+ ?
let sum-time 0" G& C% }1 I6 Z; Y, [
while[i < [trade-record-one-len] of myself]7 V- N P8 q' ]8 H7 @# O1 z0 W
[/ [3 f1 N0 u. i! a+ P0 s
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
' g9 K+ e. O2 [# y1 l) M: t, D( Jset i/ r7 q9 b& F! P. F
( i + 1)8 G0 {2 ?1 Y- f) @6 O9 b
]
; e! a0 Y4 o( w2 Glet j 33 ?7 S0 \& u! r2 l& y2 ]
let sum-money 0
: C, i1 K' s1 |% G* E" swhile[j < [trade-record-one-len] of myself]0 e9 J( L# _/ B( `0 u
[% k1 C: O* ~# o' C+ u
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 J& X& }! ^( _/ x, _, H2 z# ?6 ^set j
" B& q0 @: X' m e4 A( v8 A1 m1 k( j + 1)
1 @6 o) c8 i/ l5 O" y/ x]
1 d# I4 [) ?4 c5 Y) A$ R5 Ulet k 36 H. m' z& v2 F/ y; c- v
let power 01 v$ p, h* I. Y% }. R/ Q
let local 0. w& x6 x4 R8 g% p/ ]$ L* e
while [k <[trade-record-one-len] of myself]
) L0 L" e7 F; }8 h% ]' f[6 Z. _; i2 P! J& @8 W4 F) o) z
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)
1 k3 ?3 B* h9 q- O0 c: aset k (k + 1), h Q2 ?. b+ z9 |- {: n
]
) T2 I& y9 L4 n/ Zset [local-reputation] of myself (local)! Q% C* U: G7 f7 ]+ C
end
: f1 k; \1 n( h1 H. d0 q% {: O3 W# [! ^( x
to update-neighbor-total* _- F0 `& a# W2 s! W( H
; i# W7 t" J- W, a1 T3 e
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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+ v$ Z4 O' W& B* g9 w- ^+ @" s! X: d/ |& Y% b6 Y' Y
end
& g$ p& l, ~% n; Y5 ] {, K
- Z# ^' f; U; g# K: g9 Oto 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。, s6 k/ x! H# j& t6 k
let l 0" d7 ~ X! r( s; ?5 k
while[ l < people ]! S; }* D" b9 S# |- d
;;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)
/ ^' B5 \9 F2 _ u/ c7 u3 hif (trade-record-one-j-l-len > 3)3 N+ u5 ]8 {: F0 `6 @
[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& R, Z9 b6 e6 ~( r& U& J
let i 3
5 ~/ Y* x+ t& `' Ylet sum-time 0* `" `# \! G% x, o$ m
while[i < trade-record-one-len]
% k$ x4 M4 F/ u4 Z. B0 m[
1 x# x, R$ z8 _" O" Y% W0 hset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
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( i + 1)
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/ F0 k2 k9 F& ~7 \let credibility-i-j-l 09 H. [$ x+ ?% u- d
;;i评价(j对jl的评价)" c' W* _4 E0 n8 _% {; i) E6 I
let j 3
! k5 ~5 N' D- [- E; w5 wlet k 4
; H2 ]' j& H/ |% ywhile[j < trade-record-one-len]
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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
- R0 ^- g" {! J, F% J, oset 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)! s6 M8 @2 v& J: u. P+ y5 c+ t1 C
set j
. L( n% E4 ]+ o' Q& ^% l( 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 ))' ` Z9 R4 h- F0 p" r9 B# f
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
; m" Z) R0 L& l# h;;及时更新i对l的评价质量的评价- o d, A6 U& j9 t
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]5 e' f( G& g3 N8 n- `$ U7 v
set l (l + 1)
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) L: T9 |5 q2 W& g) zend/ ?' \( z& L Y8 x
$ X4 g, C7 U8 y( }to update-credibility-list5 Z% `6 Q# ?* p. I m/ E
let i 0
/ @# ]; ~5 i" }8 {. b. ^) T) Kwhile[i < people]
2 y( K7 T9 _4 C& Z+ d" V[# z3 o) C$ j* N2 n; H1 j$ k
let j 07 [7 ?; d' f: H& \$ Q1 C' C! \
let note 0% |% H% F9 a8 p5 I9 ~. H
let k 0" `, [2 V: R4 q3 U( M
;;计作出过评价的邻居节点的数目
7 G( D* d; ]- ?/ K- owhile[j < people]
! `* _- l" D: i5 j1 [" ^[
" @- a# n, |7 N- } {1 Lif (item j( [credibility] of turtle (i + 1)) != -1)
/ o6 h, M3 K# r$ C( C6 P;;判断是否给本turtle的评价质量做出过评价的节点
* w6 e. J: ^' z) W5 u* b4 N[set note (note + item j ([credibility]of turtle (i + 1)))
$ \, \2 J5 X% e& j i( k7 @;;*(exp (-(people - 2)))/(people - 2))]& U2 \/ i1 v s& M2 Q* F+ P' A
set k (k + 1)$ A3 I3 Q9 r Y6 g7 N
]
1 |5 z* S3 T0 A' \+ h! T5 Aset j (j + 1)
1 k" C6 B/ y- B]
% p$ }% @2 G$ T: y9 dset note (note *(exp (- (1 / k)))/ k)
3 @& U5 d2 I3 |% e- rset credibility-list (replace-item i credibility-list note)+ G; \. N; S0 ?9 M& B8 W: _
set i (i + 1)4 z3 n- N2 G& }0 P
]/ |4 z) d, C1 X: T. }
end9 J; u1 b, X* y: W
6 @1 i* _6 ~, t) Q7 b/ Eto update-global-reputation-list8 t% H ~+ e; U& G7 z) o3 t# E! n
let j 0& p- k5 }. H' i! e3 i, g
while[j < people]
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let new 0( \8 D( V" T7 a1 V0 p
;;暂存新的一个全局声誉# _6 H' v$ Z+ O' i4 J! s/ K
let i 0
) p H$ U, i; j$ e- |9 \) E( \& @+ @let sum-money 0
8 Z& q1 R' q9 M" [let credibility-money 0
" f( g# O* _1 W2 |" Y+ {while [i < people]
1 p; [1 @, t7 k& g2 E: ^[5 c }. j: u4 Q6 Y; |4 i7 A' f
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))/ l2 e* a |7 ?, b
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))9 h/ P) m. g* P# a% L
set i (i + 1)
& m: ^# G" c) v; ^# Y]% B3 N8 ~+ H: a- i/ t# j2 p
let k 0
, @5 e; `: {1 E2 c& Z; s* U/ h2 Alet new1 0
2 ^7 I2 a' x2 Q# i" W( Fwhile [k < people]5 N3 I/ o4 z+ x; {: ~
[0 `/ S( z; w# ^ y1 g \$ \4 s
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)0 l6 f: T- w* \
set k (k + 1)
: ]+ Y) E+ z; s/ a9 {5 ^]
" n5 v& R: } d% H Eset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) : P. @; c' s$ ^
set global-reputation-list (replace-item j global-reputation-list new)
, Y* p+ A; b0 n2 g1 K$ | xset j (j + 1)
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end
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1 ]% Q5 W& W/ v; m! k, e' `7 L u
to get-color
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set color blue
0 N5 D- ?% y4 {7 T/ [: {( [ Nend6 B% u3 T5 p8 A0 ^7 T
* s5 I5 m' Z2 b. l4 V eto poll-class* w7 \2 `: i: q
end, m( T- Q" ]2 r( y- g% Z1 b
/ S& o, @# Y0 j: U. J* e wto setup-plot1( b" y5 z( |, ~# B4 ~- q
1 ]8 f2 O# e% U6 @* U6 B6 T' }! J
set-current-plot "Trends-of-Local-reputation"8 I& r5 ]9 N. K& \/ `6 q6 A+ U9 X+ z
) Y k" |0 m, L5 O0 o: `% x/ Zset-plot-x-range 0 xmax
1 X5 o0 w; q4 p, J, |# x f0 v7 P' U" e9 R1 M" j
set-plot-y-range 0.0 ymax
4 t9 i" K. ^1 |4 o$ @end
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s' Y0 B, j/ p, z# x# sto setup-plot2% ~$ Y- l) w% }4 P" _3 c
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set-current-plot "Trends-of-global-reputation" K4 V- D- U+ c. m3 r
2 w+ B4 {! l! k9 X, L3 n
set-plot-x-range 0 xmax# E1 j+ y2 M: d) F5 C
& C4 F% G3 c7 V
set-plot-y-range 0.0 ymax
9 N2 l1 f: p$ D2 r/ j2 ?+ bend0 \ B; J& C- ]: f! B4 Y
+ b$ |( D- F/ G( j4 fto setup-plot3
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. T4 ]8 o6 N/ p% v" Oset-current-plot "Trends-of-credibility"- h( `/ S: Y; p2 T/ ?
/ U; s3 \3 J* ^' Z3 i* H! Q, d
set-plot-x-range 0 xmax7 J* b6 A# z$ R
& g6 N1 N# Y; w! Z, F" l
set-plot-y-range 0.0 ymax6 v! r( k3 Z% n/ Y1 |+ F0 i
end
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to do-plots% b- D ?; J4 Y1 D) o! a+ V: V
set-current-plot "Trends-of-Local-reputation"
5 ^% B1 g2 P6 C2 o$ c5 A0 _set-current-plot-pen "Honest service"
6 L9 P7 p1 U5 L1 o- @# ^end% t6 ~6 i* @0 L7 M
4 H' w6 H; F9 ^; w) F! J0 y% r[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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