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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0 _ p% M( \9 o) \6 Q3 u& R7 L
globals[
3 g3 e4 N/ D2 S3 k x- U3 {8 exmax
( ^% A0 a1 n* g* _/ l2 }ymax
! v8 m7 ^9 b9 ~global-reputation-list0 v1 h. g( ?. I1 a
/ u' I& q) n* t0 E4 W
;;每一个turtle的全局声誉都存在此LIST中
c0 M6 @! Q7 S0 t/ `credibility-list
6 ~. m u7 t9 P. i- M! |. w* Z! E;;每一个turtle的评价可信度8 G- Q( q, l0 E" {) e% ~- a
honest-service5 `+ |1 y# M8 w& c2 ^, j( V' S
unhonest-service
7 b3 A! l0 P" @( I4 ?0 v3 q$ Foscillation
3 O$ q( z3 B7 Trand-dynamic
9 B9 Z/ ~, |( d" T8 X2 j8 h* M]
) s) \. W5 z# i' ^1 C# ^, W$ m) r5 {" K) f
turtles-own[" i: n7 g; \' ]- l5 w1 m. l
trade-record-all
+ b n$ A( @ G7 s6 H, z: Q;;a list of lists,由trade-record-one组成
( o" W: O: ^: O* Q! X& v w- I4 Atrade-record-one
* m9 E/ o: r/ }" V: i;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
1 U1 _0 V( u0 D% v. }/ X" A9 [9 T+ I% u& Z7 S5 b! a- O4 L% m
;;[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]]. l" s b& x$ X& ?
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]7 e( r# H8 g; V0 p1 h0 D( Y
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
`: L' _5 i, gneighbor-total2 c" W0 a1 @9 O. B- [% r6 Z
;;记录该turtle的邻居节点的数目
8 E+ e" |: b7 J! ztrade-time" ]1 B$ V% Y: i
;;当前发生交易的turtle的交易时间' t0 z( C4 i+ T; \" ^ U9 @
appraise-give$ u: a; K- y! q( w7 U
;;当前发生交易时给出的评价
1 A9 x$ O+ X) f; lappraise-receive4 x! S4 z0 w, V1 x
;;当前发生交易时收到的评价) f) `) ]! x; f b5 Z
appraise-time
% O# z" x0 P+ U4 F" u" r;;当前发生交易时的评价时间
1 _- F* P9 g$ clocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
& f, G- _% R$ i6 Ltrade-times-total
j! [& ~/ p' r- ];;与当前turtle的交易总次数
~0 m7 A6 `) Jtrade-money-total* Q* S- \% l p% ] @' S: \$ n
;;与当前turtle的交易总金额: p# k( P q/ F5 k: l
local-reputation- W% Z5 |8 [" H, u1 E8 e) c
global-reputation8 N' i- v8 ] a8 I" y
credibility
& p+ _. A5 p2 c' f; I;;评价可信度,每次交易后都需要更新! T" n9 H5 p# C
credibility-all
E3 y% q: E: r3 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+ |! `4 M3 P' o( A# _1 u/ r
. k9 k+ C1 K4 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0.59 W0 c ?/ b( A/ F2 C
credibility-one
& D$ `( q. H1 k;;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
7 s) z4 _& A8 \+ L9 p( e9 f/ {global-proportion0 ]7 L. V6 r/ I% u+ s
customer
- j& j5 ~ r) M; {; b1 jcustomer-no! _$ _2 N$ K8 \
trust-ok
, E. @; I: O9 F3 x& s, ktrade-record-one-len;;trade-record-one的长度
' ~7 Q" {8 T( u]* D% y% k6 X5 G" f. y2 X
5 }, Z9 ~! `0 l6 P, t9 I8 F;;setup procedure
% f2 P; S- ~2 P5 j/ {( p
0 | x" T+ p. ^ K2 J9 ]% Ato setup$ I7 ~9 I6 k$ `; S; f
9 B5 s& C8 |/ @3 b$ N4 l
ca$ x" u% r; R g# `5 x) D
; g4 m B; I5 X7 {" v* `/ b# I* V$ @initialize-settings
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+ q0 _/ u' a) `2 Y" I9 bcrt people [setup-turtles]4 a" A2 Q$ Z& c, E% t, t
5 W" I( Z" L5 A/ s, G; A8 Ereset-timer7 z. } u: D/ j. t- j1 `: |9 s
" N; T% A: s/ L9 P) r& \) g8 ^poll-class( Y1 M. h: D5 N! ~+ ?( [- _4 |0 G- h
: i. O8 T+ V$ `6 p+ Z+ B
setup-plots
# N# k ~$ w; }& O$ A9 K) c
/ @1 p9 t# }0 x: P7 vdo-plots
! C* [- I2 C% Q4 d" _end) W- j. o" i- V( o" a: W
) U. b& D" d+ b, \4 Z2 r9 P" m% u
to initialize-settings
% l8 R- y5 L2 Y# ]% {3 F. j4 `" I& p* U- [* H# v
set global-reputation-list []
; G. ?, q R! D# E( @
& k2 r9 b$ N. E5 G! ~set credibility-list n-values people [0.5]; j% n3 r1 e/ N9 C! U3 w
0 _, x* J e( ^: F9 Eset honest-service 0
) \( [, n( E+ K# w7 ]( m( ^* Z S4 f) I: f. `5 {$ N
set unhonest-service 0% s# e) e( O2 Z8 m( {* \: Y
# r9 y; h$ O9 v
set oscillation 0
8 h( l z# y+ B4 V2 N7 k
/ ~3 f( x- @) e+ ?set rand-dynamic 0
: V) Z6 T$ m. g/ A7 a. Xend/ G, s9 w& |, t& N' |! }1 o
6 x9 e" {9 Z/ t4 m1 G2 Cto setup-turtles 9 p( M& t! a3 x, F: P
set shape "person"0 c7 q: T. K! L, N! W
setxy random-xcor random-ycor
! o8 Z) `& P5 |* w. b. K6 |9 Mset trade-record-one []
9 N" J: k& k3 |1 x
1 y3 ]- k" q. C5 ]" j N4 Sset trade-record-all n-values people [(list (? + 1) 0 0)]
. ]3 L' ^" G+ W a! l+ |
. Z8 [$ r M. ~! |set trade-record-current []
) k9 q, V5 j# |# fset credibility-receive []2 `/ ~, ?5 \* P1 T
set local-reputation 0.5' m' ]& H* X1 Z | f
set neighbor-total 0
. F8 Z+ i9 Y7 F0 E% j( r# _set trade-times-total 0
8 G( t7 x# C( t7 V: ^0 ^set trade-money-total 0- E: ^; _ S8 A) N% Z* d
set customer nobody
+ ~; M3 V } Q0 wset credibility-all n-values people [creat-credibility]+ A. T7 ^( f3 F, q* X& j# f! y4 y7 J9 [
set credibility n-values people [-1]
# }5 j# f8 e; M& G& Kget-color
+ A$ U: p7 x+ ~
, S% x# @8 q$ Z" Hend* y. z3 c( ^0 P/ W5 M" \& g+ l
3 X/ r) P$ W' y0 M$ c3 U5 G+ e+ i
to-report creat-credibility
$ j! {% ?, u# _' i+ freport n-values people [0.5]) K }# Y' c7 [7 Y- n" G; x
end
5 b' S2 @2 o# i& m! K
) K# E# D2 [; L% Gto setup-plots% G- ]* ]- G# P3 r' y
& y& \2 `9 P) j5 e9 [
set xmax 30, X' J& F2 l: [# V
4 o$ `& K/ r, r1 o X fset ymax 1.0
; q& ]6 w2 }! x7 Y& m# c. W% Y* ?' m' p9 _
clear-all-plots3 d3 X# S Q( ]2 n! z5 m' q. d
/ \) G; o5 P! V% o1 i3 lsetup-plot1, H; d" v2 D6 B; g+ @
! I( G* P |" k+ p$ r
setup-plot28 K* X' @7 D- b
0 I& c+ S, c4 c: msetup-plot3
1 h6 X A# L+ k! d9 zend7 t& b5 L; V6 j( R+ H
8 u) g: D5 `) g
;;run time procedures
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to go
3 h- b. s$ n; Q" Y. V" e S# I9 f8 v6 k8 v4 p$ I6 a9 H
ask turtles [do-business]
/ E& v8 T6 Y8 w. d: V5 Jend
$ g2 {1 j2 ~# J6 ?: |# }3 W) C* P. c' U8 b# i H
to do-business - @$ m% q4 }. d% Y* T7 x9 q
' Y5 C! q3 q8 w* y1 H1 J
/ g. W( U9 J4 @2 rrt random 360
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, W3 G, E' F, K4 z3 r# g" Jfd 1* W1 `! c/ u. x$ n# V, z. X" g8 K- A
M: H; r x ~) g, X2 h+ eifelse(other turtles-here != nobody)[7 |* y# f) O) O3 ~% i' Q
& |5 e7 F0 S b- p+ }9 w5 ~1 P, {8 ]set customer one-of other turtles-here7 n5 Z; O6 j) ]4 B+ H+ L6 c% N3 e8 v
0 M8 p" e( \# N9 i;; set [customer] of customer myself
' z# x |) Z7 h* N
$ I7 B; h* Y" W3 Q" w$ fset [trade-record-one] of self item (([who] of customer) - 1)
5 L# C2 k% C+ Y: B$ d% r. a8 n5 m' T[trade-record-all]of self- ^4 O9 L: W4 J( C5 Z, h+ Z
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self4 D3 Q3 B& J. ?. i' F
1 N* M. t: D- ?, L% a
set [trade-record-one] of customer item (([who] of self) - 1)
; q3 A7 v" k% R& W5 E+ z! C[trade-record-all]of customer' b, h$ u- v! v: Q3 v( f4 A7 {
; {6 L- h2 z7 r5 _1 u! Q; t: R. }
set [trade-record-one-len] of self length [trade-record-one] of self; E$ S& y' k1 {1 `' D5 Y: \& _
8 t4 z, b! b6 G- O v& r5 i, c; Oset trade-record-current( list (timer) (random money-upper-limit))0 ^( k8 G! j7 ~' N& u J4 ?
0 g* s3 w0 Y# X. h8 g! X& g
ask self [do-trust], ?# g2 C( h# w7 n! O
;;先求i对j的信任度
8 G6 g) Z3 ]. V5 D- B" N1 ~1 z
5 m* ^) r' ?' v6 kif ([trust-ok] of self)' g& H/ C0 Y; y% U, Y
;;根据i对j的信任度来决定是否与j进行交易[, F; c0 A! l! h1 Y: l
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
& v. z: q. v( s( X1 n- p# l l$ g' Z* u' R! j
[
* D, R9 d- V' U1 X' y2 @+ x( L7 Q
4 B- t" m9 g$ Ido-trade
7 o* r( ~/ d# x' g7 O: t3 f: N1 D' N6 K
6 k9 [9 [; |! h. m, K8 Q$ B2 j) D. eupdate-credibility-ijl P0 H+ f! }7 a
4 }6 [8 }+ a# P& A Qupdate-credibility-list
! u- c+ ~% a8 Q m9 f
9 y' P/ _8 R# C6 s0 Y9 c" _" O; |7 x6 Y& Z; I1 s' t
update-global-reputation-list$ Z3 q) w# u# y& S6 D
2 \0 S7 X8 d# t9 ?! V$ H
poll-class: `- i! B, r6 K* x2 T
3 m/ D0 s! w$ k6 M1 S7 {" e9 K: nget-color6 U6 P) G- e8 V- f" Z. B
( o( W! [" z5 C, S6 y' A& ]
]]4 n- n. v0 c6 q/ R+ E
+ I+ [* x1 a! q/ L+ T- v. ]: N. O& q- Q;;如果所得的信任度满足条件,则进行交易
2 u9 J0 b* X% S
+ B3 E! i$ O9 H2 ? Q" P( M2 y$ `[. f! B0 C2 J% Y; j& y! O, I
. a6 w+ v% P9 C9 W
rt random 360
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5 h: F- R5 Q" N0 Lfd 1
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, M. { u! @# m) l% q]
4 Q3 x0 C. t t. J) p+ Y& J; ~* r% g; }. b4 q b
end, a: u! E& c- t+ }; `
2 _1 Z! f% }: v7 E+ Gto do-trust 9 J3 \* h4 V( ]! ^: H2 K
set trust-ok False+ `7 v# \3 F8 o# s+ m+ g2 j
4 |2 k( y6 T( J/ h
9 }$ A5 I, `- W; P+ p' p4 A: s% jlet max-trade-times 0
% L* \" d% D7 K2 Eforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]# X/ d* Q$ s9 o, d/ |0 Y2 F
let max-trade-money 08 r$ \, d2 q' P; z5 d
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
; Z4 ]2 Q, t2 ?- E+ Dlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))4 g) K- Z) K* X" H2 T p. ^
* |/ `- D4 i6 Y1 [- _9 Z k
; _* E' o1 o" I) ]. p+ Yget-global-proportion9 M. H7 t! `# L) _" V
let trust-value! b7 L, g+ o* u% i) O& A
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)9 L% h( n. J+ S7 E
if(trust-value > trade-trust-value)7 b; r: Q% }( ^2 ]- S: y9 Y5 \+ T
[set trust-ok true]
1 @1 r5 _6 M8 _6 bend# b+ n8 q2 G9 i" }0 S- G
% Z. w2 V& {' |! v5 T" kto get-global-proportion* k1 d) f' ^* h3 j% r
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)- f5 @$ h2 l, V' I! ?
[set global-proportion 0]! _* Z: @+ M+ I2 c1 O7 C
[let i 0
1 Z, Z% _! Z) |let sum-money 0
. d1 X* [$ H, k% s# Dwhile[ i < people]
0 b5 V& B: C# u% k; s[3 z3 [5 N7 p3 I% M
if( length (item i
# D9 ]. S, x4 t, s6 _[trade-record-all] of customer) > 3 ): y7 {6 q( k% U$ [) A. o3 g! X
[
3 V4 Y# Q: ^) Cset sum-money (sum-money + item 2(item i [trade-record-all] of myself))+ F, J; G6 t; d5 w0 v. \
]+ }5 t! m# p* T3 `
]
0 Z; u7 o: S! ylet j 0
4 n2 U0 {' n. b7 P% ~* Olet note 07 X) S3 q* `5 o+ h/ g. y a, C
while[ j < people]" G" ?- x, ?- |
[8 y3 w! a4 B* e) K$ D
if( length (item i
, q k% M, `1 r$ I3 z[trade-record-all] of customer) > 3 )
; j9 P3 ^9 L0 y. R" W+ ]' a+ i[% W. T; G f+ J) }2 s* [ [
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
1 ?& p- t" H. c2 d; I[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 a4 Z: p$ c2 D
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]' `# f1 D9 g r$ h0 j5 K; S* Y
]/ q% f) S. a" {; [
] e0 M& D! T5 `9 T: A9 g
set global-proportion note
' C" Q N. v& ^, O, y( h9 u9 K]
3 ?: e5 k# ^9 E S! u4 Nend
9 I' J! S5 b a6 Q- {6 q+ w% H
' j0 q+ {* y8 \7 [: q% d- a. ]to do-trade! s" y& w' D, |
;;这个过程实际上是给双方作出评价的过程$ n7 j0 |; r- L! a
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价: {3 ]4 A' i, T2 b J6 M7 v6 a4 m
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( s; @, s7 R% F1 E0 y: t
set trade-record-current lput(timer) trade-record-current
0 I3 s" o" W- ^: E;;评价时间
Y! E7 w" a1 y$ V1 \ ^, D9 ^ask myself [- }0 j2 \; @( ] \# [: A& F+ H5 ^3 J
update-local-reputation) \2 R5 B$ ?6 A: |3 M
set trade-record-current lput([local-reputation] of myself) trade-record-current
( \& _# Z/ ^1 ~& ?* Z7 c]3 @7 b+ k9 Z- U7 v
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself* f$ [& J2 L3 C* W# m& C! f2 P9 P
;;将此次交易的记录加入到trade-record-one中
" D5 _3 U. k0 h- c* Wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
$ P! u9 j. B( x4 Blet note (item 2 trade-record-current )' x [# n1 Z: c5 I' M9 C& ?4 s* @
set trade-record-current
9 R) ^. y3 n& ?& c7 m# F" n% I' y(replace-item 2 trade-record-current (item 3 trade-record-current))
- G/ @' }) [, {( Kset trade-record-current7 i! E: x- @* I5 ~- r
(replace-item 3 trade-record-current note)5 w% ], C8 e$ e: v6 N2 e$ P' l
) m8 a- i. c, R8 C" Y2 |
. r9 a" `- n3 i- M3 j9 mask customer [1 U4 c |. h1 R2 R# d7 P
update-local-reputation
3 j* S# N Q6 r/ m1 W6 Aset trade-record-current( ~7 z- x: x* d D0 Q& E3 P
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
9 r! K( I2 e" R1 N- Q& x% x]9 H1 S+ m0 ~ t. ]$ G& {
' W- q; S1 d' S3 B' H, o1 I
& f) e5 b; b5 T( _- q1 h) n; }set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer E f$ f5 f( }. D5 @. {5 w
8 {/ j$ s$ x+ J- y4 |/ b
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)); c: E3 M; H3 E- j5 X
;;将此次交易的记录加入到customer的trade-record-all中
( p- C) c1 O1 j+ w. M. Pend
, Y# M( D( t1 \3 I% H
. i' u/ W) e9 R. x9 k7 c% G" cto update-local-reputation( F' B! Q* e0 A! I
set [trade-record-one-len] of myself length [trade-record-one] of myself2 x, m% K2 ?( t2 `
" T" V+ v- c+ _. P4 e, ^2 O7 i) x
" Z) j7 ?) q, u
;;if [trade-record-one-len] of myself > 3
, Y6 u7 h' H* D, @9 _update-neighbor-total Q8 G: K/ C( K; [ Z+ q0 [9 Z
;;更新邻居节点的数目,在此进行+ E0 I9 k1 V0 S9 M4 X
let i 3
! b9 Z7 `( w/ m& Z2 |/ q6 Y8 ~let sum-time 0
4 n! A1 i+ }% bwhile[i < [trade-record-one-len] of myself]
# J- w$ U# q! t0 }. u) L* X+ \[
1 z+ U" R& Q w) L3 c* oset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
5 I6 S( T* f$ e5 O1 sset i
1 W+ w! o" `% x3 f, P+ J8 [. a( i + 1)+ v& B- |5 G# W8 r; q! J) b
]
; c9 m* F" c+ Q5 x, J2 i3 @let j 3
! K. Y1 T) c. i0 ]/ H3 E/ p8 W0 }5 Wlet sum-money 0
# r* c5 K* c) w+ }+ x% ^while[j < [trade-record-one-len] of myself]& o1 z1 Y* T% K
[3 ~) y6 L/ f% x( ]1 y8 k
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)
% W" P8 O- O7 }" v: A" rset j
" r" | k: S% _6 |( j + 1)
% |% b, H3 V2 r+ ?]
0 E) K* r6 b! X) H& _) \let k 3
% D0 s+ s+ N- m* b9 [let power 0
: A* M! F! N4 llet local 05 {3 }) n0 P. u9 n$ C& A
while [k <[trade-record-one-len] of myself]
3 ^* R* g& @$ ^5 ]9 [[
3 I% t9 i# [2 S4 K" xset 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)
) M- B! E+ d5 s7 G8 U/ ~set k (k + 1)! d0 X$ s# ` s
]
" |" v$ Z6 }3 V/ Z Vset [local-reputation] of myself (local)5 N) X3 Z$ t7 x# J% k
end9 o B* h: u, B5 O$ c! a2 K
2 k: Z' |- c2 X4 P" z
to update-neighbor-total
; d8 {8 M4 R. [9 _5 p% c
3 H% W4 S, V ]- p/ Z4 eif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]* r' k* J6 r5 }- L# l3 B
" |9 r5 s' U) @1 l
' g4 _% C& h9 ^% ]. {" A& F' F3 n
end7 w z+ _/ j2 T8 ]) F+ S
5 I7 e6 P- d$ J8 W; w& tto update-credibility-ijl , D6 y1 B; c! T: `7 M- I/ `
! `; S: |2 N P; c% O X% p
;;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 W+ ?. a- j6 t1 u( i. S; R D$ {5 a
let l 0
( K) F" z9 ~/ d/ j, ?while[ l < people ] v$ w# s! ^7 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& {; Z/ e, k; a* O* t+ L
[
+ B# n6 `& q4 h1 \0 t. klet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
$ l" L5 r' l( v) K, k0 [' W+ E' Zif (trade-record-one-j-l-len > 3)
+ f4 V' D7 Q6 I! T9 \[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-one0 a, n6 G- a6 h
let i 3
! k, S3 v7 k1 W Q7 A7 elet sum-time 0
3 {6 b/ h/ ~ i2 W( Z2 I: twhile[i < trade-record-one-len]" j3 ^$ Y. M: e5 `9 j
[
9 E9 b& T4 d- ^4 Kset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
4 o! ?/ Y7 _, e5 q' c) Z! sset i
5 [" X4 q+ c0 {/ J- I2 b( i + 1)
% a7 p, i$ s5 U3 ^]
- Z$ n5 K1 q7 Y2 }( L! S7 i$ mlet credibility-i-j-l 0* K$ a8 y2 ]' _( @
;;i评价(j对jl的评价)
# S9 u! A: O2 d0 G; k* mlet j 3
, a1 @# P. }2 ~. G2 |, Xlet k 40 ^' I [) P- i: S+ ]3 J" M1 Y$ a$ D1 b
while[j < trade-record-one-len]
3 L& z, i& M8 W[
( W' W) L& U+ A0 h4 m& Iwhile [((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
- }# D! a& V# Jset 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)9 J) l8 L% ~2 L) U/ | ~. C
set j
: Y) @3 S8 I# T# H4 o* i9 U( j + 1)
# t& C8 f( A5 W$ X( N1 \, j]
% h' z g8 l3 e& Aset [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 ))5 ?) h4 F; m Z; h
; n6 t& X# c- V, A! g2 j; f2 l3 [
- {# }# [' @; a% z
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
2 Z9 i' m2 x9 H8 F7 J) ~;;及时更新i对l的评价质量的评价5 x C& L+ l! d# \7 m
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
7 S' ^- m }; A; `7 Z" Pset l (l + 1)
9 X- N( }, s' {8 X* J2 X]7 l; I; c. A4 D% J( p
end; _& E& y1 r% u0 h- a
6 F) O! v* W* G
to update-credibility-list
. K$ M, s; K* H6 t2 _7 tlet i 0. F0 z3 b9 q4 R6 S
while[i < people]
. L3 v& _1 H( Q. O3 D[% g' _: d- {$ C! Q
let j 0
4 @/ `0 g: }: h# e- {; dlet note 0
, E1 n3 E# q' Elet k 0
) U/ U, X1 V6 \' b0 ?5 j$ H;;计作出过评价的邻居节点的数目
1 u4 V- J4 }0 I) Bwhile[j < people]8 E% _7 u5 F" w& n8 C0 `
[
8 e* W+ Q( [) Z) Z8 P, Q7 Zif (item j( [credibility] of turtle (i + 1)) != -1)
/ e; r7 s' ^3 L, d) Q;;判断是否给本turtle的评价质量做出过评价的节点1 w+ v5 m' A( X
[set note (note + item j ([credibility]of turtle (i + 1)))
7 q0 A$ E% k, D) g6 ?+ T# F;;*(exp (-(people - 2)))/(people - 2))]
! D2 k$ R9 D' y/ eset k (k + 1)$ M6 o- j% k' r4 |$ A; H% \
]
3 m2 i3 `' h! u" sset j (j + 1)3 T( W3 z/ L9 F
]
4 W' } \* a) c! ~3 ~3 \set note (note *(exp (- (1 / k)))/ k)$ o m) t, G+ Y3 F$ l. _8 n0 X
set credibility-list (replace-item i credibility-list note)
9 F% M6 U9 b# Fset i (i + 1)' Z$ _+ i* e9 L7 G) I; o6 a
]1 P! O G1 M5 r1 @ q, A' \' y8 l, V
end
0 b) L) T2 Z8 X M1 n) R
7 U' I: u7 H# O- O7 m- Gto update-global-reputation-list
- n3 r1 x) F X7 _! f& K# ^7 [* Wlet j 0* B/ {2 E: d! v& z5 ^. h
while[j < people]7 n3 ~" i1 U8 { L
[
, J: H! L/ t: o( elet new 0 E' l- J0 w$ V$ @: u3 b
;;暂存新的一个全局声誉" B N' T* L$ y% Z$ E
let i 0
% L t1 c3 t$ i% |$ T5 | llet sum-money 0
2 S1 _! c3 p# b; Q+ [2 q2 dlet credibility-money 0
. O u2 }# N; m% g9 W( d' ]9 ewhile [i < people]
( e* {: |, E/ c( b. ?8 A: L[+ j+ U) R2 b4 Q: K* D3 i' Y
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
9 `9 Q) u$ w$ m6 S$ r/ Wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
$ e5 ^. e7 D5 Vset i (i + 1)
& u1 U7 u5 _# e3 u]
$ a" D# Z: ^0 hlet k 0/ R9 T$ O- }* m; D7 G; R; Y
let new1 0
9 {% C4 L# R, k/ ^( @while [k < people], k5 R4 o4 Z/ w: E/ O
[
2 p* h. V8 {, i, `2 P% s0 L5 Nset 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)
- X: t1 z9 o5 o5 H# Z2 G4 j. x: Fset k (k + 1)% `+ Q/ ^4 j( E) O+ C; v
]0 f& [4 Q# K8 a7 u- M4 R
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 4 j9 e7 Q' v- W2 J0 `
set global-reputation-list (replace-item j global-reputation-list new)
9 G# A+ i- l+ ]3 ]5 d Y8 v+ uset j (j + 1)
' O0 d$ g, k5 Z }% N( ~9 {]
- E1 x' j, Y6 J0 v! ^$ ` E# ^" Fend
1 H& Z1 a F6 Y I+ o' ~& h! I' h' x2 K8 W, S8 `: T+ Z
! t3 o* n+ H. ]) u( l
9 [# \+ J! r% B# @0 C" {to get-color6 y3 D! G( ?- k- e/ I) j
8 h4 ^# s& A# B; G* h1 L
set color blue
2 k4 {# \* l# k! m0 Oend9 w& V8 z8 t7 v+ p4 U: r' j: h
: Q$ t" r1 e+ k* s, ]. Pto poll-class
6 g$ `' z r# v$ v$ j) q. K' |end: q% F5 c& R8 z) n K
3 E2 U, h) l/ M. c, Oto setup-plot1
6 o q, A5 H, b8 f5 ?: T- D* v0 e5 e) t! X+ d2 J$ r
set-current-plot "Trends-of-Local-reputation"5 ]) D9 A! K5 E1 c2 W
* T9 K; w8 h6 M3 m/ ]$ d, G* r
set-plot-x-range 0 xmax
! ] k$ V( I5 p7 o0 {& Y: i7 S0 m4 l d
set-plot-y-range 0.0 ymax0 h2 u4 X( X8 R5 _3 B: W
end
( \3 i% N4 m7 W, c) l9 {# B
8 M( I0 H7 S- Ato setup-plot2
) }5 ^0 r4 L4 _
X( S; c* m$ c2 ^0 {' H# z( ?% aset-current-plot "Trends-of-global-reputation"% |8 A* H8 @8 e
5 d4 X; D, d0 B% z* C$ a
set-plot-x-range 0 xmax
* R. [) D( Z* O: B) {, h1 h: D% U
6 P3 E# k% M& C* o4 h) T1 ?set-plot-y-range 0.0 ymax8 \; L; [1 N9 S! y9 @( D
end, M$ _: Y8 K9 W, i
1 F' R' I( ]+ a( x6 i% `
to setup-plot37 i; u9 t" G' [, ]6 c: I8 R! P
6 x4 X' |! q. Y. b- e
set-current-plot "Trends-of-credibility"
$ X% x1 r6 u( J+ V: a8 {! E J
6 D* C2 e3 Y7 S. J/ a2 Kset-plot-x-range 0 xmax: S: L( [3 v% s! P. E
7 ?) j ~$ w; y8 ~
set-plot-y-range 0.0 ymax, N" A0 I7 v2 e: T3 B! I3 f
end
) @" `! H6 V- X! ?( a$ u5 M% X/ B9 {3 I5 B, t* V8 n
to do-plots- l5 L! l: U8 P' @0 u3 n& _
set-current-plot "Trends-of-Local-reputation"" R/ y6 H) r9 _: C, {
set-current-plot-pen "Honest service"
' E7 _5 A1 {9 Z+ b8 V# O- X$ xend
- `% y1 K( @+ h% b' o: m. b$ Q0 _1 s4 b, U
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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