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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
. }7 U( u5 V$ G9 r1 `* o, ~globals[, W: Z. }& X7 I6 H
xmax
6 ~1 A+ V5 X8 iymax7 n$ N0 a3 g8 M( `; L. E: R0 n6 i
global-reputation-list
! \& S5 Q, |! ], n' m
M9 ~8 d( p0 Q; x;;每一个turtle的全局声誉都存在此LIST中
2 P& [7 k$ t! U$ A g1 @( Gcredibility-list
; k( d; `* U4 K- b7 R4 S6 p;;每一个turtle的评价可信度
$ K! [ k- h* m0 khonest-service! N* y0 ~7 f5 [7 s
unhonest-service
$ {/ Y9 d# h' f$ \2 Voscillation8 }; c, e1 l: M
rand-dynamic
3 k9 ^7 r+ g) z1 ^) y]
; L- r O( B3 X0 g% g
/ ^3 @0 T ?! ?turtles-own[; r- Q5 v' @) z) I: O( D) c
trade-record-all9 s+ q0 X! [! L& f3 u
;;a list of lists,由trade-record-one组成
1 X! X' e" a. n; j/ `" ftrade-record-one
; I" h* ^$ G" x! M;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录* O! O7 ~- M. V( u/ i# d5 C
' F% m& l+ L1 ]; g4 w;;[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]]
D8 f3 z2 v) utrade-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]
# ? N+ i( K; W. y/ Wcredibility-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
0 l- h; a1 q' @" T+ Yneighbor-total4 Z3 {% ~9 [" x& z* z
;;记录该turtle的邻居节点的数目4 u( T: P5 z8 M" n/ h f
trade-time
! J6 _2 j. F* @- A;;当前发生交易的turtle的交易时间
5 M0 d+ y5 G' B! xappraise-give
, [; m& W% C$ z6 Z ];;当前发生交易时给出的评价
1 m U4 x# [& B% n2 wappraise-receive( g0 a- W% e& v8 m% [. x
;;当前发生交易时收到的评价
( M& C+ W2 M9 P; m9 j7 S5 Fappraise-time
5 S5 X# n( s6 e- c) F6 M+ [6 I;;当前发生交易时的评价时间0 P% K8 Z9 F8 V$ w9 g% W
local-reputation-now;;此次交易后相对于对方turtle的局部声誉3 q* _2 o7 q2 j' `2 w7 ~
trade-times-total; ^& J1 D4 W7 ^: l; m2 G; h( F
;;与当前turtle的交易总次数1 @3 y4 S* t" a7 ^- i
trade-money-total8 [! @" q7 ? j$ W2 `3 U
;;与当前turtle的交易总金额3 q5 s4 B. e9 y3 E
local-reputation
# I# k! W9 ~) O2 Vglobal-reputation
3 P$ f, c* ]' f4 Y9 R& h5 F; N" Acredibility
9 e( T0 I8 v7 a& Q;;评价可信度,每次交易后都需要更新
2 c& A" b) b# Mcredibility-all
* B$ D- L, i( 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1 C( R# U6 [+ `( N6 ~" |7 t
1 P. }% Q1 R; C! w; o' C7 F1 b
;;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0.59 [4 O+ M7 y: C' e- S
credibility-one
( Q4 Q1 h& q h4 z1 p: C9 [! x7 ];;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
* ~! `9 U" O( X1 |) Oglobal-proportion7 K2 U$ a% M6 n3 L2 U8 m: N
customer
8 R$ |" _1 y' I9 Y4 v/ T6 Jcustomer-no
2 h: A. J- l7 o9 {trust-ok
/ o: s v( `' }. ~: ktrade-record-one-len;;trade-record-one的长度
; z& X' m. v. C5 B- X]' _" ^, U7 f' E/ ]
3 L. A" l/ `" {
;;setup procedure! ^% t/ l$ o4 k) Z
2 n8 Q" `! N2 G
to setup
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ca2 U P& k* d; G" ?: S2 _, L! B5 T4 h. C
# G9 Z/ @! K& ?" A/ q- u2 f0 qinitialize-settings, r) A: U! S1 [ S- ~; Z; g- _/ w
, |* T/ u9 ?4 F7 C, C
crt people [setup-turtles]( D. d/ e2 U" S5 H
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reset-timer
- p7 m; T- w) r. @* O
1 U$ v$ S4 y& M" \* Wpoll-class
$ m2 a2 m# @3 C" k8 Y8 K: e+ }& ]1 z! f: l
setup-plots
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9 M1 c2 T3 P/ B5 Q" g( odo-plots
# i% o2 J' E% f! p+ Vend& @3 v2 U! |- k
# h8 k8 l8 m( x. ^* Y: r& pto initialize-settings# Y$ v- }! l& w9 \- b: D+ Z
* q. l8 y& `: H6 g8 k5 U% Dset global-reputation-list []. y8 j2 A' p( y
! P. @$ N+ m, c; B" A! s% A* d9 W
set credibility-list n-values people [0.5]
9 W1 Q1 N' a/ O" V2 S" i0 l+ K. @; O) s
3 w b+ q) _; t0 H) L1 ~set honest-service 0
) @- `" |+ F5 S3 {" ? r0 _# Y7 N1 G! o9 |7 g" ?
set unhonest-service 0$ W$ a" c$ H) R' W
2 H) B/ n" Z. P2 C, \; Nset oscillation 0
% b$ e4 f! j- t0 _/ w1 C; {5 |; K( \+ I/ {+ C! }$ y
set rand-dynamic 0/ q7 P6 S7 l4 W! l$ V
end2 p( a0 ]/ w; @4 f# J
0 N4 z! C- Y& Lto setup-turtles 6 d2 L O, ~4 a" i! H
set shape "person"
6 g2 B1 n3 q: o- zsetxy random-xcor random-ycor
. U; i- d/ e6 v6 lset trade-record-one [] y9 ]0 S& w, \7 ~' t1 | A' f7 H
& A4 |* d9 q, p6 Y; Y7 uset trade-record-all n-values people [(list (? + 1) 0 0)] $ h' \9 W4 ?( `0 f
: r6 i& v; a/ q1 e' v
set trade-record-current []
$ H& t5 i7 Y8 x& i5 b1 d7 @5 Gset credibility-receive []
8 S! o- W' H6 b: Kset local-reputation 0.5: s) N3 C5 c+ S" `/ S8 d
set neighbor-total 0
$ I: @6 N" h/ G/ j1 A6 Sset trade-times-total 0$ x( y% \2 N* u" V' i+ U
set trade-money-total 07 l3 b3 E( |7 v* B. V/ ?7 \5 P
set customer nobody
) z; r# h( p# w4 h9 e6 u `set credibility-all n-values people [creat-credibility]. o4 g' t: a& D6 C0 ]
set credibility n-values people [-1]7 Y/ d0 r+ \9 J( q5 s4 C
get-color! [$ e' ` @1 f2 R# e9 F
^ J5 j6 U5 W4 s$ B7 nend' _9 w! t/ Q& `4 L$ q' ~
; k9 M) Y0 [! \( V. `/ y( G
to-report creat-credibility
9 N. S2 b r: Q. f. Breport n-values people [0.5]
+ O4 C4 s {2 h& m" Q4 _+ xend
' s) z g4 v" u+ {. W0 c
4 e* k+ D4 e) M- w4 F/ M ?- D$ @2 xto setup-plots
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4 ~, A7 a3 I' \! b. Z& ~$ v& ?set xmax 30" @: F5 {6 ?4 C
* L0 N5 {1 q8 r# gset ymax 1.01 E0 M! v7 H5 t+ w$ C; V$ K
$ F/ p A0 B5 p& K, Y. F* i$ |clear-all-plots
" E# @' A3 J$ P7 J1 z. d$ H5 X7 ]! e. i3 K4 o
setup-plot1' F- g, v( S; b4 w5 ~
9 |0 [7 p% r' _. h% Y% N4 z
setup-plot2
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% d0 w) T0 c# X9 f: isetup-plot3
+ {2 R% Y/ g2 ]- ?. O7 W! Qend
7 j! |. ~ b% ^& {9 N- Z& v8 R2 G, [) B9 G" s% Z- @5 j
;;run time procedures" z O9 w7 r- g' u1 {( s
( Z- _: _: I) G( r9 W
to go* o' e" n- Q( y0 X
# m% `8 `. K+ }" rask turtles [do-business]! ^3 r' f& _: I9 h( t
end% g- a% t6 x, w$ o% W
) \" Y/ v8 Y* } t' sto do-business 0 d4 k; k# T) s4 d3 c
- ~3 f) M3 U: g$ H [
) ?/ ^+ @5 U. H3 }rt random 360
, }/ [6 V$ ?1 U. w8 @
; R2 f8 u/ |& u" Q h" d9 P3 ]fd 1
8 D* |: s5 t+ v+ Z# o5 y2 x' X0 n+ o! L( D7 Z5 j
ifelse(other turtles-here != nobody)[8 [8 p+ y k# l, N
* Y; D M3 j- qset customer one-of other turtles-here
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;; set [customer] of customer myself
# P# l" o& v0 x) b. `8 ^2 K& X" Z2 p) A8 @ `$ Q
set [trade-record-one] of self item (([who] of customer) - 1)
$ d q( l0 p1 J) A# A[trade-record-all]of self
5 |; t X% x) V6 A; P;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self4 X5 t- O7 [6 r, W- [9 l! K
8 \ T* z8 e% l0 \$ U
set [trade-record-one] of customer item (([who] of self) - 1)/ t5 N) ~' \9 `3 d! y
[trade-record-all]of customer' E. { j9 O: L6 ~% g8 Y5 U5 m
- [% O0 y8 C* x! @9 j O
set [trade-record-one-len] of self length [trade-record-one] of self
' }. U1 O8 ]2 b' G5 }3 L
/ A- j4 W4 r S2 e0 nset trade-record-current( list (timer) (random money-upper-limit)); R2 e4 @: i# _% X$ G7 c* Q
; ~3 N9 q4 y, F4 t
ask self [do-trust]
3 O: R8 f+ q2 L/ f1 ^9 h( V/ @) d; G( x) u;;先求i对j的信任度
x3 Y/ I7 K5 I+ S' W
0 \( L* h( ], {! Q Y) Jif ([trust-ok] of self)# Z! s1 F* G1 a; n* g, R
;;根据i对j的信任度来决定是否与j进行交易[
: M* W0 S. I3 {$ i+ cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
$ n1 f& f3 W" u+ M
) C" d$ {9 ^# n0 |[
+ | |: v* |2 ]" u: ~1 n* P; a% B; e7 ~( @) H8 X) s
do-trade8 G+ l% T+ }: K% W7 E: {
3 u5 J% U2 m7 N4 B# k. Y0 nupdate-credibility-ijl5 w9 {1 A5 }( x# A: L+ l
Y7 {# ]" V) tupdate-credibility-list( @* w) f( k1 L0 t0 e; t5 ^
6 |! `+ B% k2 e& u t
$ }+ S( g& d% n t0 W! o$ M5 _
update-global-reputation-list
3 P. B0 K$ s' h
3 n) T' g$ E0 h5 A' F8 z% hpoll-class
) d! G9 s& N7 u
0 {) ^# F& g, {( H. k7 s) Kget-color8 c; J6 e( f8 u4 n. ^
/ J5 G6 [) W4 V6 z: h]]
+ ^$ F o' s2 N: g
, @4 G. g3 i& m;;如果所得的信任度满足条件,则进行交易 q4 n& \$ z+ [- X
0 u- l, q# G$ y+ L[) f5 p7 E" i9 n
+ B9 ^2 U2 o9 a; i h4 v# h, ]- W/ {% q- D
rt random 360* [; E; O q2 y) M/ k3 b
" H8 J) Z/ s p' y
fd 11 _2 d* D C* F
; h& c t/ j6 G# U& r4 o- {]0 H, @ L* w2 L ~7 P
. N- C! y1 j* |+ q% z; ^, N
end
! @" a4 P, K b% ~7 u% ^2 z4 X* F/ U- j2 Z& _1 t
to do-trust 8 l( X' w8 Q( a y- |& E* r
set trust-ok False
+ m# i& R5 {9 F5 p4 Q
) T# a$ S% L9 V$ ^, T2 o
2 n- @: r$ I& q" C, a7 mlet max-trade-times 0) g* G; u$ M5 K( d3 X8 h$ k" n
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
) ]0 e: U1 m5 w2 nlet max-trade-money 0
' [: {/ T% b x9 p" aforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
/ j( |% ^, |9 X6 q5 mlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))6 g4 u0 \5 j2 f+ x) q* ?8 t! i
. b3 @. `- U( M' h9 [% u+ M
% u5 V' }7 E, U! S; P; lget-global-proportion
6 r3 N9 V0 P; m8 Plet trust-value
1 h$ j! Q% Z0 _7 o6 N9 \ Ilocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
& k7 x g0 K+ _5 xif(trust-value > trade-trust-value)
. r7 r. g0 ~* L) w# d5 p[set trust-ok true]
, d6 s: n$ [( ^; Eend" H" M$ R9 j5 C
+ Q5 t, Y! J$ s! c$ M# D0 W$ r
to get-global-proportion
8 _2 g* f, w: i4 G2 V( aifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
9 y; k T7 ^/ h) P! O[set global-proportion 0]
9 Q1 o# e; X d9 u% ][let i 0
% r% c. z, J! Z- ]: Nlet sum-money 0" l# I5 B% A- @. @) W3 {
while[ i < people]/ x5 q( x: e/ ~: A& D
[
$ l$ F% M6 B$ y; ?1 c1 Wif( length (item i, v' X( Q1 ^- C1 t7 T
[trade-record-all] of customer) > 3 )9 n/ c, z/ `- R+ C& ]
[
5 |) T$ c4 N- c" y) d4 ]( m& [set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. M; U7 ]* [' d4 q5 T3 s]
9 ^5 q8 _/ ?/ i0 J]1 n0 Z" d( D6 G9 Q+ y# Q0 M0 d
let j 00 d! H. Y) Q+ N7 q2 ]
let note 0) M- e5 g4 { q- R% A6 `/ i
while[ j < people]3 k6 z$ q; R: P, _. k& T
[
0 J) R( z+ j2 n( x( Vif( length (item i7 Z) y+ w3 m+ h7 u+ R! N4 V# W
[trade-record-all] of customer) > 3 )
. u. }3 C4 a; H[0 n. h+ K" z- b/ L7 a! Z- v5 w5 E
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% S1 U4 ?. l1 @. H, _[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 _; k$ i9 Z. ?- \! B! n
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' b/ c6 [ B T! |4 z]: l l( A$ g5 N4 c' e; o
]
+ `' H8 d# j. p& |set global-proportion note
; Q4 [+ g+ G; a# c& s# L2 P, {- I]
7 h- Z. {2 V, y2 K% ^3 ~end. y% J+ X, h4 ^6 [* p) o
( m: I' v1 S' i: Nto do-trade/ s2 G- C, m: o( T& @
;;这个过程实际上是给双方作出评价的过程* q1 I* J8 K1 r
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价' J v& r( W$ ~6 u
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价/ O: j' S" v4 C4 q
set trade-record-current lput(timer) trade-record-current
3 R8 N1 E t" L2 };;评价时间
6 n, |' L4 E: M0 T9 {, R! m' r$ Jask myself [
7 q4 a8 T1 b/ K3 `, zupdate-local-reputation0 k+ a6 D5 K5 n( W
set trade-record-current lput([local-reputation] of myself) trade-record-current
! b, V K7 V/ _. @ j& |/ `]
& v4 C# k0 o+ z$ X2 w& c0 jset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 r0 V3 S! q( I- {" {
;;将此次交易的记录加入到trade-record-one中: R- R% ~6 `+ q: ?+ c- }. e& f
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)9 Z, \' t8 o$ U. g( U/ U
let note (item 2 trade-record-current )
- J5 V2 j2 P* oset trade-record-current! |5 I9 @: f; o1 N
(replace-item 2 trade-record-current (item 3 trade-record-current))
( ~1 Q- d8 U% d% B3 h! O; E) rset trade-record-current
! k/ ?9 W8 q% \7 m( Z$ e(replace-item 3 trade-record-current note)3 T% S0 g+ B- S: |7 z% a
' Y6 ]% U: w- _* }/ U$ V
) Q: a2 g2 P0 A$ \/ {" Q% g
ask customer [
7 A% D& Y- q" Z% w" eupdate-local-reputation5 H: E+ V5 O) w0 [
set trade-record-current1 `4 U( M+ P+ B, a- u4 U7 C: D2 h
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + C4 V3 F8 w; ]2 d6 |5 F
]; p( Z# q* O, S6 }9 b
$ @- @6 i( ]& A0 S8 H5 L
8 J N5 T E( ]- V2 d) C, Oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
( f, P0 ^& j: X% R6 l0 y- ]3 J! @/ U% t8 Y. F9 @
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
# `; _5 ?( o7 h5 G6 _;;将此次交易的记录加入到customer的trade-record-all中/ z0 V6 O. Z. H) V- y* `
end
, j7 Z# S8 q0 O$ X" a1 a7 }& a6 Z* d2 R' {' g
to update-local-reputation
. G* c9 l5 g7 Jset [trade-record-one-len] of myself length [trade-record-one] of myself* F8 m+ c- w2 C; q O
" }- B" e$ y# {. [0 u/ \, @
$ g* F+ ^# o0 w! A- e;;if [trade-record-one-len] of myself > 3
) j3 T; N, b1 G5 Q5 Aupdate-neighbor-total/ j. K9 Y3 Q, s
;;更新邻居节点的数目,在此进行$ J# R7 \9 B# I2 p. s9 f0 [
let i 3
, Q* k9 v% f y! alet sum-time 0+ |5 s& }% ~1 \' w. B4 n9 U+ j# |
while[i < [trade-record-one-len] of myself]3 i; L% b! O8 v6 Q& \$ L
[8 w% ]1 ^) m4 W) s: m6 U4 o- z
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ) o ^5 |3 P: L, G, C- j/ u
set i
' q* R0 B4 w+ {6 J6 i* H( i + 1)
3 K1 f C) Q- Z, I]
_4 l3 U: W) E" r4 slet j 36 ?, G% ?# |- o8 d
let sum-money 09 {. h- |, f6 b! |3 n- d* j
while[j < [trade-record-one-len] of myself]
+ v8 T( \; U9 o" A& {$ W+ Z7 t[ G5 g$ D& U( t B" x0 H+ c4 d8 i
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)
9 ]6 ?7 Q" z6 U6 x Mset j
, Z9 u1 [" C5 M& M& N5 |( j + 1). C- ~" b6 H9 W/ N
]+ r7 r, j; ^1 D" i% k
let k 3
- M6 v, U. O7 ~- @) k1 P! p, qlet power 05 @5 L& o1 W) l; p t
let local 0$ u! G' f# Y8 y& p: ?+ ], u/ Q! j
while [k <[trade-record-one-len] of myself]$ c V: ^2 J0 ?: J/ g. i
[
l% S/ M, x0 e8 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)
7 B8 k, d/ b* K7 Rset k (k + 1)* S- j% S7 L, y
]* r" v+ O- f. ~9 h' ~
set [local-reputation] of myself (local)
6 c( n; O5 \+ |/ W# ^( Y, |end. A) k" A6 c: Z* ^3 Z, H9 F
% m$ u( j. }/ B8 R6 U% Mto update-neighbor-total" F) r0 b8 |8 ~! |0 K0 q" A' ~
7 \& s1 G1 }8 s7 s/ ]% Iif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]1 y0 t7 R% ]) l) G
2 N! `. M: I1 N: h% N
2 x7 V! z3 c& Z, V8 _ W9 Iend
% \6 v, H. { `2 z% \5 J, ^* y B" U' G B0 X- B
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。
: j7 Y" t8 q5 \) {% |9 V( Z2 olet l 0
# l. I, ?3 J1 }( uwhile[ l < people ]1 @/ M& V9 y. L9 @
;;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5 D: x2 j* A* V+ L$ ~1 s
[ b+ w' v! ?# B- a! i1 B% L' |
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
/ m; s+ ^: \' s! w4 l nif (trade-record-one-j-l-len > 3)
. ]) l3 Z7 u$ Q! N1 g3 \) ^[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
9 ?6 c5 l5 z2 e% L, e6 A- vlet i 3
. k9 _, ?! Y v/ G1 r0 nlet sum-time 0( f- w- t$ J9 n! c& i- x
while[i < trade-record-one-len]
G- w8 s0 x; y& ~1 `[0 O1 Z" w7 o* Y
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )& l$ V* l( k8 x4 D
set i/ D6 m/ f4 }/ j; ^# u& g2 |
( i + 1)
) p+ P. B7 ?" }. j( K5 I]
' F5 I L7 B, w* a: n* O% {* nlet credibility-i-j-l 0% D1 R5 |9 Y# [/ o1 T
;;i评价(j对jl的评价)
! X z8 X9 D4 m- |+ llet j 3
k* P& H# Y D" v$ c7 flet k 4$ I T1 f# P+ t! J- X/ D& J$ K
while[j < trade-record-one-len]
" x8 [# k. O) ~! J: L8 {. {1 e: C/ K[
9 u4 \ R& I7 r( A: pwhile [((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
% ] q s) r6 V- ]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)
8 Q8 f8 A+ _( Dset j
7 h# j [: o) M2 K( j + 1)
" U# |# K, j8 q]
9 ^' I+ O/ X8 V9 o" M* m7 [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 ))9 \1 A# u4 W6 y# f% n' B* A
6 S3 S% }" \2 k, P/ F
. D8 z4 v$ ?5 G) ]8 v: X) I* Flet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 V/ j2 O8 `- R, m;;及时更新i对l的评价质量的评价
/ d2 d/ h+ P& j" x- vset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
+ j- f/ B2 S, ]set l (l + 1)0 J; ^7 v: H- e/ q" @! u
]
( d! [* J/ k) mend
) o, t$ m/ {" S# @( U/ h$ n" k) I, _
" X+ _& O p$ fto update-credibility-list
/ C @7 H. o3 E8 l+ d. p+ S: klet i 0
+ r) A2 h2 B. x2 l% w; j6 Y3 P0 xwhile[i < people]6 u& z& E" g0 {: ^1 ~1 N) v0 G
[" b% f7 [7 }" W9 b- {: D
let j 0; u/ a3 i j) H
let note 0
8 B8 s! Y2 R0 l. _' e( o! Q) Zlet k 01 O8 u6 g" W% O$ Q3 J8 L
;;计作出过评价的邻居节点的数目$ t0 Z7 ?9 V8 m( @" k
while[j < people]
' c- `6 u1 u; }0 r; y1 U+ P[
" w. i; o4 O! zif (item j( [credibility] of turtle (i + 1)) != -1), F [2 T' g, M* d
;;判断是否给本turtle的评价质量做出过评价的节点( z8 `- I2 q! j4 M# ]7 b+ c
[set note (note + item j ([credibility]of turtle (i + 1)))+ {9 y( M$ K8 F ?+ p0 s; b4 [& P
;;*(exp (-(people - 2)))/(people - 2))]
3 f2 P6 q9 H6 {0 b$ w* jset k (k + 1)
% b( W6 H: q1 I j4 l$ M]9 d- ^3 E( _, \7 y$ G# U- R
set j (j + 1)5 m/ Y! V0 R0 Q/ `% q
]
, e7 p" \6 O: C2 K1 D. ?set note (note *(exp (- (1 / k)))/ k)8 o( x+ ~& Z8 E
set credibility-list (replace-item i credibility-list note)
* H5 i; w. [. S; P2 yset i (i + 1)
F* w" L' A+ a# m- _ w) d3 j]/ A$ y* L7 A# O3 j9 V `' }
end
' f/ `: I" E" O/ s. `
8 Y h" w+ W$ t( a1 Z5 n7 _to update-global-reputation-list2 f' ]; o/ N1 C4 ?& \
let j 0. {4 q7 [/ b" ?' H- `; s: k+ A
while[j < people]
5 g. j! ~) i2 P% Y* v[
: l. q* ?, Q M- a w4 b7 llet new 0
5 E/ b ~! {# ^, G: d3 ]2 V;;暂存新的一个全局声誉
/ A' B+ P$ `& R* K; ?let i 0! F* @5 U' O3 _
let sum-money 0
2 J" \4 M7 Q) ^0 U- slet credibility-money 0. F0 s6 U. F2 T' j. j
while [i < people]! W" i( [( K, _2 s5 J
[
! A& Z) Z! Q+ fset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
* \, h# H& R4 `& E8 p J) [set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)) |! r2 t1 U& V+ u' P4 z
set i (i + 1)
; g* J2 z3 i' s: j3 R J7 Q: R]; a+ y% x+ E( J
let k 0 s) J d& U: z5 h2 F% X
let new1 0
: m8 z7 r( p k" o6 awhile [k < people]; b/ \1 w6 c5 D2 V: `3 q
[+ J7 o8 l/ t+ s' P3 N$ W
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)8 I- b2 _- z/ f1 ^9 u [. \
set k (k + 1)
* } b# ?: P2 [8 Q* a! U- \2 L]3 E; v& j: g! R5 M
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
; z, u1 ^6 C* {" ^/ X; L" X) Yset global-reputation-list (replace-item j global-reputation-list new)# G; O4 \3 p/ ]: N! Y
set j (j + 1)3 W& E/ {1 k0 ?4 Q' f3 s
]
/ C+ G+ x9 F( U* t8 Uend
7 Q. |# N8 |: T' n2 c& f8 C9 j- \% c5 c+ |; [5 _1 p G- E. W9 _
+ @+ @/ L. a: _) l2 I6 A6 P
; k/ r, S6 K2 S6 {& e6 X" O5 s
to get-color
1 O9 `& F8 j& |* |9 v6 ?) [, Z9 m0 a% F! p
set color blue
9 ` N& f% C4 i0 L' a1 s5 Nend
5 n9 X. p, C2 v1 V' L6 P7 g, o( L o; x7 x+ s( Q
to poll-class
+ S& o* Z5 T) r; X( p% Gend2 f; Y8 N; x# S1 l# A
/ k6 W0 \" z# q: `: _. O+ u" tto setup-plot1
7 r7 \# J5 h/ a6 q2 L- V+ d1 [$ V; ]0 a& y
set-current-plot "Trends-of-Local-reputation"0 F5 v- a0 c9 q; I0 x6 g! x' X
1 _( Q* J) c0 u0 |; Q. ?/ c
set-plot-x-range 0 xmax2 I- v. O) ~5 K+ E6 w1 _4 L
( X$ B. k1 S1 i2 r4 S+ x
set-plot-y-range 0.0 ymax' B; \- D7 L# R5 I5 k5 b' I% [# {
end
\, a) [1 c) q7 K6 i- A; v
1 H1 O1 L+ p+ s3 D; Jto setup-plot28 P) K* P2 h" v7 `
" e0 y/ Y& N" W2 @2 V
set-current-plot "Trends-of-global-reputation"
/ V3 Q+ `2 A/ A! l/ f3 i$ N( j8 C! Y! q
set-plot-x-range 0 xmax
$ R* o* R' p D( A# M7 U" ?: I* L1 }5 ^- k( p( G$ q
set-plot-y-range 0.0 ymax" U3 \+ f3 @% ? c0 j; }
end
: a- ^1 I5 ?5 n* B6 G
/ T- H/ f' |7 G8 a, ?to setup-plot3
5 _8 W/ s+ R P; R; S3 a9 u$ d, z. c) b2 ~
set-current-plot "Trends-of-credibility"
3 ], Q+ R X9 q. j
) | y& Z& x7 E0 Mset-plot-x-range 0 xmax) a8 `4 o9 a: l3 U0 B) \
6 k: c W; C/ z% B3 `set-plot-y-range 0.0 ymax5 R3 c2 v9 ?, i5 c- K1 D0 D& c
end3 C8 q! z, j7 u+ |2 _
7 k# v$ S2 a# _- W Oto do-plots, f2 B9 ^9 q( b
set-current-plot "Trends-of-Local-reputation"& p' G; ^; A+ D. E8 x9 ^
set-current-plot-pen "Honest service"
( V/ ~. P0 m+ J2 _end
& ?; Q$ [2 ]3 R
. [+ A2 O: K9 t( [$ g( M[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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