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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
6 Y5 x; `* N6 \globals[" N) v0 G, }. L1 z, u
xmax
- `) | M5 O0 {- Cymax3 y8 I" T# N# d; F% P' p
global-reputation-list
* q' {% G& t" k+ p. \1 l5 h; {! L5 _3 }& w" m/ x, {
;;每一个turtle的全局声誉都存在此LIST中
. U* U; l* _# Z* }* ncredibility-list
4 Z7 \& D% N3 l! R( c; x: l;;每一个turtle的评价可信度$ ^, _# j: X& p! L% r$ G, N7 W! u
honest-service4 o, c8 `4 Z% G' y3 E0 L$ N
unhonest-service; j& ^0 w% s% h, S R: w
oscillation
* z" n# z0 E7 Prand-dynamic9 J( e& t4 n( L) _7 z
]2 b7 z/ a* }' x0 Y
$ W% e0 j* p: {; rturtles-own[% D& ]& e0 }( F9 o) b
trade-record-all
$ {$ P( i V1 J. u/ P;;a list of lists,由trade-record-one组成, c" z& ]+ T4 j+ w# n0 H
trade-record-one8 G4 k* M) W8 q' p
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
]; [" y" \, A2 N( L" R" [( ^% N: W! U: S
;;[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]]+ h9 L* z% D$ |5 _
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]
* g' R! h7 @# 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list# u8 q8 ^9 r& i( Z! J% j& J0 B4 U( i
neighbor-total j) Q9 A6 g* e0 J) `; h4 a
;;记录该turtle的邻居节点的数目
! B" t) m3 x4 P4 `6 Itrade-time4 y& p6 U! {. O C4 Q1 F1 W* u, \
;;当前发生交易的turtle的交易时间! X& E5 `& t+ r/ Y3 o, s3 D |
appraise-give1 v/ Q9 W3 x/ w7 k
;;当前发生交易时给出的评价
+ g2 C7 f* U/ G F( R4 u. `" Yappraise-receive8 j6 L: b! @ N& T# R' C4 {
;;当前发生交易时收到的评价
- ^( ~% p' m1 r) Uappraise-time
6 b$ v) i& t; t* F- j% D5 Z;;当前发生交易时的评价时间" m; C Q& S( h, ?6 S$ `$ o
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
0 D( E% S3 q O5 atrade-times-total
8 ~ X6 y9 C' a8 Y/ V& u;;与当前turtle的交易总次数
+ W- p3 ^6 m- u, ttrade-money-total
" q! S, x3 ~1 [# n! f+ T; F4 N;;与当前turtle的交易总金额
3 w( ?" ?; t# C% {2 a" Y" f5 Ilocal-reputation
7 b* C* u. B9 I( iglobal-reputation
5 N* H3 Y; z2 w: r5 [$ Gcredibility/ ?5 g# d6 f% j- ^2 C7 ~* L# C
;;评价可信度,每次交易后都需要更新
0 A) x7 b9 Z2 W) c$ O# ?credibility-all- u* A3 q0 g( N& w
;;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0 ?& R* d5 `+ T' H
" h# x" }4 y5 h' j& ^+ |( w( \
;;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 W4 d9 E" c1 k! h0 _. e" B( b
credibility-one* b0 P, u) Y3 M: b$ Y! O
;;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) i9 \" o5 ^2 n2 i2 \4 l
global-proportion4 w8 D' d3 L6 ]" A, t; {) |3 r* K/ H( X( s
customer# a8 w! R! K* {" S3 _
customer-no% Q1 T& e# m1 [ R3 a7 I
trust-ok
; w$ `7 a& S1 atrade-record-one-len;;trade-record-one的长度
/ Z5 F L# c% D8 U+ e/ F( n]
0 h+ y4 B& i+ [/ Q% x! n+ d, n; N" n. J. d# g, Q0 N, ~
;;setup procedure
: b0 D# [. f/ Y' w# L0 s5 W9 b' D/ L% V" v
to setup
( b7 Z N' l/ Q8 p% _; }
& i0 T$ J. a* A& O# wca
1 k9 x- c6 h6 s; D1 C9 R5 p0 f5 t/ E7 s# Y5 l
initialize-settings- p- I, K9 I) g, h- O. L* g9 S
) p0 M4 {% y. t+ y3 wcrt people [setup-turtles]
7 I: X, U8 O9 P$ s) O+ @% _9 M9 h) ?: ^
reset-timer8 w/ C3 w4 x1 ^! y/ b
u( {8 K$ X0 @9 C5 y# ?% `$ K
poll-class2 }5 x. x# y3 h+ @! D& @" `
* V! ]# G- W6 i' u$ v+ Asetup-plots
3 P; m0 t- X4 B! p4 z8 G
9 U, P+ I% R9 k9 \do-plots
k9 G' ]4 ~& nend+ Y2 f; J, g( v# d# u0 e
: b# y' n3 L& P' S$ `- wto initialize-settings
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set global-reputation-list []8 o7 a. s$ F4 h4 R s ~
& ^, Q2 F _: _+ [" N* U" X
set credibility-list n-values people [0.5]
0 V8 P2 h+ w. V" M' N7 |9 E; p4 Z" ^ E* Q
set honest-service 03 f/ v J* T/ p: F6 S5 d* W6 R' \
: Q+ T# U" F7 z: ]
set unhonest-service 0! K# y; w7 C! o( B/ A8 {
+ U4 k# I4 y: b% v- I" dset oscillation 0
9 g' r. z% B$ \8 _& z3 [$ P: Z9 ~. {9 u: `: [# g% r6 Y
set rand-dynamic 0; v/ D5 M4 s! e7 d; V/ L7 ^
end
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$ x3 Z7 S2 _ W9 I0 `" e" sto setup-turtles 0 S$ R0 R: j+ {# O9 c6 M
set shape "person"7 M3 i3 f- L$ x3 m( `0 n& H7 z, _ E
setxy random-xcor random-ycor4 q5 z& C; m5 J0 G1 h8 v4 s# W
set trade-record-one []
. U- y8 D) R& \* y% T! Z3 a# Y
0 C! U2 d* A6 G8 R% z" ]9 p8 C" Lset trade-record-all n-values people [(list (? + 1) 0 0)] ' v) Y) c/ C5 g$ R0 e- d( L/ `. s
$ k5 T5 Y* v5 d u% F: l
set trade-record-current []
) V5 O( B1 H; i0 U3 Iset credibility-receive []0 V, l5 t) n: R6 y% N: N/ V# B. [
set local-reputation 0.5
: Z0 c+ H) }4 B" P; Qset neighbor-total 0% D! o0 f6 i8 w6 ^8 Q4 r
set trade-times-total 0" W' Z4 n" |! U6 Q2 `9 p
set trade-money-total 0
4 f4 \! m0 m' }4 X3 ]- S1 Lset customer nobody
( t3 O: F# l9 Vset credibility-all n-values people [creat-credibility]
3 n4 s+ |7 t6 J: ~- zset credibility n-values people [-1]: @2 [# a! r7 o$ Q9 W% y: i
get-color5 P" S! g0 F, f0 z6 ^
. {3 m" d9 R2 W; O, hend1 V% ?( Y/ Y( c) b
+ H( q/ D/ Z/ D) [
to-report creat-credibility
9 }( C3 G8 f: B; H3 j yreport n-values people [0.5]2 T/ t, r- ]" z% r
end
) ^( O; m O1 [+ C: _- P6 S
" {6 v2 a; U9 R. f' r$ ato setup-plots
7 e6 n" [3 D5 Z
; v0 h0 h: ^7 ~/ z5 P+ b' z, w% |, bset xmax 30
$ ]/ g: ~6 \3 J5 |! N+ u6 y
5 s/ ?# o4 k% Xset ymax 1.05 W/ X4 G' ~. G1 Z
+ {+ b8 h# j4 d
clear-all-plots
2 W" S% L) T& Q$ @ j6 M3 k: _& E5 c( @. [! E! ^! p! v
setup-plot1
: z: d* q) {3 v+ G. F- ]! @
- p+ F5 l v6 ?7 o- Hsetup-plot2) o9 h( e/ S. o+ Q! j( ]
$ ^$ h( H) E7 U5 Msetup-plot3
3 X7 r9 n$ i0 e1 Xend& E: I: n# _2 S% k
$ Z. I! t* [, x0 R, o
;;run time procedures9 N: e' F, H5 }8 R
( b7 w+ n3 G g& W1 T
to go
2 b+ @* k. C) M
4 {% {4 E9 L- [! T' S- Q0 Mask turtles [do-business]& p) e. Y/ ?% K
end
/ F$ X4 r( [* s8 o% u/ Q5 @
, T, n( |+ s+ [; D' D1 Oto do-business
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2 \9 l' p5 x- D D* ]
0 W# L8 }, b: B. K0 z7 p1 Xrt random 360
) I) d0 d8 S+ [0 N6 A% Z
7 B3 d2 H1 e+ T2 @( Jfd 1! [" ~ [$ u0 n# {: e' Y" \9 W5 o
- @8 D; F. ]; N/ b4 m9 z$ E, J' ^ L
ifelse(other turtles-here != nobody)[
$ C2 k% T7 u* A& y
* O7 M5 ^1 Y& `% ^set customer one-of other turtles-here& T# g1 q- p; T2 i' y4 I
& @. ^7 G. u' s. m7 s: | [
;; set [customer] of customer myself
/ s5 r5 T( l% z+ f1 f- ^* c! Z) s2 Q a: [) X, {
set [trade-record-one] of self item (([who] of customer) - 1)
% e& n' Q6 ^; R4 r[trade-record-all]of self
3 Q% E- l& p# j3 G;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
7 S' w3 i& ~* f5 D
- [1 U5 a1 [+ B6 `" A+ R3 Bset [trade-record-one] of customer item (([who] of self) - 1)( W: ^4 b; b5 {
[trade-record-all]of customer
0 j3 J2 ~# A4 e! {5 X1 x( n; G: I# A/ l k- R, Z6 j. y
set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
. h# b1 ]: b- r9 D4 j5 \
\) ]9 S) V, aask self [do-trust]
- J. H- @( c7 ?/ ?;;先求i对j的信任度
+ H7 W( \+ I0 N( |6 R& E8 z7 t
" I7 r" f1 k/ s* H4 N. K7 S/ ?if ([trust-ok] of self)1 `0 O4 V* E% B- N, _- |
;;根据i对j的信任度来决定是否与j进行交易[
$ r, c' S) \- R) J' @1 kask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself, R' D, `* ^6 z3 \" I% U* Y4 Y
, h. I0 i2 e% ], a- n' O+ z[
\% u' T' y5 n& h3 F
, w/ t3 K1 ^; @" F# ?& C8 Tdo-trade
# A" Y8 y! ?5 s, y; i1 j
: F# i4 u/ U8 r( D+ j2 ^update-credibility-ijl2 q V+ P7 N* J) T9 d7 _ e
5 J! q5 X x& p |" mupdate-credibility-list
# f* [3 x* Q3 O* |: V/ s! E
$ I( c$ R) H; v7 E' f% ~2 d
9 Z4 J+ H! E% x) ?( a8 H( L2 bupdate-global-reputation-list
: b W2 {7 y" D- o- @, N. q" q
4 J( K4 g. b/ _$ h2 r) l9 h+ cpoll-class8 L- T( \$ `4 G# o) F. H9 R
; q$ t. U5 s2 \+ c
get-color6 U, x( O2 c$ A8 V6 P
2 W; l: C# K5 d' Q( S; e]]7 c7 P4 i0 G( K w( I2 [
0 u) a) b, |; P
;;如果所得的信任度满足条件,则进行交易. M4 @& u6 T( ?* O: f5 }) K/ r
3 N/ [+ A1 }- b# j5 X3 \[
( z) e3 G" ]- ^1 z0 D" r
9 `0 u- z! [4 Zrt random 360# z6 [6 Q( A9 d: `) F
# Z% f; _" b, u! K1 L( s1 n; i
fd 1
1 s- N$ @$ {0 p
' |) w3 N/ u- `' h" |: d! T7 T]
3 i: P ?# \; {# b% K: E$ z: T+ M2 I
end! Z% @: D7 H7 k) K6 |8 }% L! r
, \, i) b H/ W. O9 nto do-trust ) _! r6 `* L9 H5 s
set trust-ok False. R% f% P) D5 K( R3 S+ l" Y3 _
4 E$ N+ E8 @* M% K" f; L1 S G' B! V' M& i! i8 o' w* R$ K& u
let max-trade-times 0
1 \/ U. x# ]5 o' j1 v, {2 tforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]! o, T2 |: h m' t0 @
let max-trade-money 0
) O8 }: z% k1 ]; E0 ]1 }) Mforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 a' V1 ^$ g) F w8 X! G4 ^, g( ylet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
4 S& a. V7 P# P }+ h" }1 w8 e$ v- @/ u4 O8 a% _# P& Y
" d( ^+ M, \$ ~) Q8 E) ?6 Xget-global-proportion/ F5 `- h4 z! @3 f. z
let trust-value; D% p |5 \+ `% Q4 q' }6 p/ Q
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)
5 g, r! U5 [! m3 y$ h: _if(trust-value > trade-trust-value)
/ \7 c) M, z6 j6 H+ Q4 V- ]8 P( s[set trust-ok true]
1 @9 j' X! L7 a" T$ Fend9 t) J' X2 ~4 N- Q( @3 Y
* F# |8 \* u0 Gto get-global-proportion- Q1 z; j2 X/ K+ H
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
# T: V6 c, D; o4 P/ R1 x: i[set global-proportion 0]" F) s, |* c0 M+ V4 h1 P0 v1 v
[let i 0
9 N# S2 o" o7 {. v' Y* Glet sum-money 0
8 C6 d% e) O8 Q" I; K# P- W5 {while[ i < people]
4 Y2 O7 ]% O, ?$ U0 [% i[
5 i- K' X- Z0 U6 |1 \: d8 P9 Eif( length (item i
; F g2 ~. T: C: m+ e0 p. \$ y% \[trade-record-all] of customer) > 3 )0 ]; M; ]" |1 G+ o' f
[
% p5 i* U1 J) i0 ]set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
* N9 z4 d9 z, J3 a6 {$ h]5 ~3 {4 y3 O' C8 F
], h0 ]- m- B& {, K8 T8 f
let j 0
7 `; l _6 ~, j1 Blet note 04 T+ {) N8 e t+ m, u# L7 z$ r
while[ j < people]
6 u! `$ }+ X0 J$ |9 |, d' w[4 M& I( R; K$ J- Q# f0 S
if( length (item i% [7 N2 d& V: Z0 e% `: m; O5 h4 g
[trade-record-all] of customer) > 3 ), \ r5 p. k, V$ T& |# d0 T
[! n$ o- }8 d5 Y! N; q) D- l \
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1). E) M# o7 U7 R" U, E. ]
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
% v3 G6 K8 I0 M" l[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
4 E3 e* \/ O" ]- I]5 C ^4 r: q) f) ^. A/ P
]/ M: C# q* E: w: \' L% ?3 V
set global-proportion note5 v- U4 n% t( d3 ^" d1 O6 L
]$ k9 l- L1 q+ P; S0 ~1 ]
end7 V" S& u7 N: [+ [% ]$ ~
& D# M' V9 U8 [to do-trade
" | k: D$ C: n/ ^;;这个过程实际上是给双方作出评价的过程* r1 h8 M H! q7 M5 _
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价; l0 V- {8 a9 }* g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
$ n$ Y+ A B' v b5 }* E6 z; yset trade-record-current lput(timer) trade-record-current7 `3 o$ p/ n7 o2 G$ x- }
;;评价时间4 R8 z9 A, e7 h# O! a7 Y7 c
ask myself [- e8 e/ Z- s9 M# h# D5 x3 e
update-local-reputation4 S! F& e4 F- G, |0 i! B
set trade-record-current lput([local-reputation] of myself) trade-record-current. x" C5 Q6 K; \- L' \ r8 X4 @. J2 g. J
]
4 Z2 t8 Q7 M. O- A. Y- J* o+ xset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
- Z) N2 y# k" Q! Z* W+ b9 {;;将此次交易的记录加入到trade-record-one中' G- F' s, K8 N+ x3 a" f% j
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 `- g# ^2 R) [: A9 \let note (item 2 trade-record-current )" Q* ~! q7 F1 @/ z1 @9 `3 }& l, c2 M
set trade-record-current. u) k6 Z B* b. q
(replace-item 2 trade-record-current (item 3 trade-record-current))
6 F! z# [. \' s- Mset trade-record-current8 k9 Q1 v- o) O& F
(replace-item 3 trade-record-current note)8 Q% m& J ?9 \3 L7 n
/ h2 M4 p( Y! G# M \6 y) }
8 h# V8 p3 o, U4 k2 Wask customer [) u% R4 N) _' b h
update-local-reputation8 y7 O) k0 @; L
set trade-record-current* {- ]# ^, t' r/ l
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
5 b2 z( C0 Q9 _0 L0 X! t1 o7 p7 I]8 Z. k3 b r" b3 c# ^
- n& {8 B7 i0 }
3 D8 A8 d1 v3 s8 P1 @' lset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 {; f+ E d* G8 D+ ?% L O4 y
4 u- c$ v; \7 R! z3 u. f$ M
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
( c4 F: m, [9 {2 l- P! n9 Q;;将此次交易的记录加入到customer的trade-record-all中: Y$ S1 ]5 H, W7 M" ~
end
: @3 z+ L9 ^) M$ }$ t) h, g( b+ y2 g# x9 E
to update-local-reputation+ Y j4 H; \) z# `" R
set [trade-record-one-len] of myself length [trade-record-one] of myself
9 ` \/ d, d" d: [" W$ s$ @+ ]" W O6 V+ T
' |- O8 v+ F) W8 K/ f: @5 e
;;if [trade-record-one-len] of myself > 3 # k' r7 |1 ~& U, G3 R6 Y0 L8 ?3 a
update-neighbor-total
8 E4 F: D9 ~4 D0 U2 I9 q;;更新邻居节点的数目,在此进行& E, }8 o1 Q$ F6 g
let i 3
& U" O) C! x) y( r9 g' V' Ulet sum-time 0. }# h8 l. K4 y, x
while[i < [trade-record-one-len] of myself]: v! X& N! C" |9 n( C
[' _( j* j3 F9 L# X' O1 S- L' e
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )# b j5 \1 ]& F. l% }! ?, k
set i5 A6 m4 ~7 _6 i/ P' ?6 A
( i + 1)
i" x- J) T; D], c( ^ I" {% x1 U, o- ?
let j 3
$ } M t$ K+ m2 }# ^* s2 Dlet sum-money 0
5 e2 j+ T( h5 Rwhile[j < [trade-record-one-len] of myself]" O3 _+ `& R5 g! L( P* H$ p7 x
[
9 P' f7 _' V, iset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
; O$ D3 d* d0 n4 }0 e/ M1 t0 ^set j
/ G6 w5 @& n/ r" L( [" b+ H( j + 1)
8 K ]# O1 y) Z1 C( j]
- \9 T! Y, V2 Tlet k 3
$ U9 @) W$ l/ I( W" @ q8 C& jlet power 0" [- g% k G6 N8 L, w ~; F
let local 0, @7 t# M( j4 B# H2 D
while [k <[trade-record-one-len] of myself]
7 O& ^* `1 j4 { i5 S* O[
) R5 ^( F6 S* Y4 p. g2 H( yset 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)
4 F% G* f' g4 K0 W4 R* b/ L7 U5 [set k (k + 1)
& R. [& U) {+ q: a: d+ \3 v]; i' @( y! X" R9 V6 [) s
set [local-reputation] of myself (local)
( J t8 r$ l2 t# _end
4 x3 m4 P p8 w& ?! W: G, e" ?. S
: C. S1 C5 @: M- @to update-neighbor-total8 t/ P% m# l( `+ ^: A c
) n" l2 v% {0 r) w! _if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
9 U) J; x5 A; d2 q6 r1 S* M+ E) K9 `
- R( F" c3 A+ X2 _' y# hend% D9 H) X, s1 _; ^+ H. p
0 p$ `* s% K t4 M) O- Kto update-credibility-ijl
6 P3 L% Q0 x, B4 X
4 b4 \7 Y0 E4 h8 m. E7 Q;;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。
+ e: e# k* e! \5 E0 O7 v& alet l 09 e6 U+ N, O. V* x- K/ n3 J B$ V
while[ l < people ]! I" `. A" b- P6 c6 z3 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* I5 [- H) b1 ~0 N/ k. m1 D2 x
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)0 j( Y2 [# D4 o5 ^
if (trade-record-one-j-l-len > 3)
5 _# m% L4 i4 Q% M. f) b0 ?[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
+ \+ l2 ~" M: v |1 h5 Elet i 3
, w) J. c+ u# d# Elet sum-time 0
, v' n/ s$ X: Y! f, K8 j% Owhile[i < trade-record-one-len]
# Y1 g/ T; M. }6 m; V[: V. i- {% d1 D. w ~
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
) z' K7 i; `( T9 D& D7 jset i
0 [+ E. p) @. k1 W- I- `( i + 1)$ }4 L5 H# h' d, l2 G
]0 {* L! X' r! @ s' G
let credibility-i-j-l 0- x- v5 L/ ]. P5 C/ J" C
;;i评价(j对jl的评价)
# o8 H: P' X2 K. U9 j' Ilet j 3& P; m3 Z. l& w: F$ Q
let k 4
0 A' i% P' u9 Pwhile[j < trade-record-one-len]: P$ j" Q9 l( [" r/ _) l8 K- D4 x
[
7 Z' Z, U2 j4 o/ a0 e- J' ]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
( m0 M6 T, c% q& v# j2 @# D" |. Bset 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)* m1 J; A. m8 p8 a; v G
set j, ?- B7 L1 b% l6 x. I
( j + 1)3 @3 R* `3 h7 G9 X; m" U
]4 E7 |% a3 G% O; @
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 ))/ w* T; t% K4 M
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)): m( S- f0 a3 P
;;及时更新i对l的评价质量的评价
& K9 V6 o# L% j0 ~" e( `set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 [+ ?- R V0 O- Wset l (l + 1)! {- L3 _# L) @! [
]
5 B N$ `' X2 l3 L1 {9 g; Jend
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; {4 l; H- R* ]' p5 y/ a/ B4 U5 P" tto update-credibility-list8 q6 A( K$ s/ j' r3 O0 }; `4 L
let i 0
% E3 j- Y- C1 E" N0 W$ Owhile[i < people]8 `" T( R/ ^" Z6 \) P
[# T5 `7 o: p. W# _+ t/ f
let j 0; d1 V4 s4 d0 _# j# D: Q! d; e
let note 05 d, {; ]& O2 E6 k, J' S3 Z6 h
let k 0
3 G2 f7 o3 R/ _( e+ _0 m% [;;计作出过评价的邻居节点的数目- ?3 g B/ U! G! P# T) W: ~
while[j < people]
- _1 D) `& ?4 R: X& r+ w$ ^[
9 @+ q. q6 T5 v0 n6 N. e/ ^ Pif (item j( [credibility] of turtle (i + 1)) != -1)
: S0 s: v$ ^! q;;判断是否给本turtle的评价质量做出过评价的节点
" }9 w$ ~, ^" V( a. Q. K! p[set note (note + item j ([credibility]of turtle (i + 1)))( r2 R! B, o) g/ i8 Y! u: F* `
;;*(exp (-(people - 2)))/(people - 2))]
1 L- x8 U( D" fset k (k + 1)5 o) o8 \5 }- l% s6 }) S
]
" h+ C: {4 O0 W6 N$ dset j (j + 1), W2 _9 m# d F- \! F
]* u- O. |! [8 ~1 r& z) Y
set note (note *(exp (- (1 / k)))/ k)
+ s: [, J: q! d' C, G, l5 hset credibility-list (replace-item i credibility-list note) ~ o2 N# L0 A9 Z* e
set i (i + 1)& a4 M$ \2 `) \) M2 \0 t; X) w6 ]3 s4 G" @
]3 w+ M) C' _" m# ~ B5 X
end
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; t! J, k$ L: t6 M' x0 Mto update-global-reputation-list
1 p7 o) y1 O5 K* N. m& g4 h7 s5 y ~let j 00 {& t7 k$ H- s9 h
while[j < people]) P* [7 e! j, F' y; d9 q3 O' |7 V
[9 [! Y% j" y+ l' m2 y
let new 0/ M: S% c$ j1 r6 p p+ G+ c
;;暂存新的一个全局声誉
6 H6 D; Y# H" @! f* Slet i 0
' n6 M3 B, M, U4 B& I5 U& Ilet sum-money 0# K2 {5 A1 u) F- f
let credibility-money 0- w' b, _0 }) j; H, H @
while [i < people]# Q' o4 n* M) @' @8 |. S/ O2 q
[
# |" T* K: I3 d$ K. D* Bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))9 k+ X" ^+ c$ O9 Q- e2 X7 G2 ^
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
9 m" p" g6 K7 A/ z- Bset i (i + 1)7 ` G" o7 q& `5 m/ V5 ^
]
: h7 b; U( X \' b Clet k 0
3 o) H1 O) Z( B2 k2 S. Ilet new1 0
7 E0 D- x# {, i" m) G$ ]while [k < people]
0 x* U0 b" X9 y$ o' Q, x[* ~# R; C$ ]5 w0 F7 m- I
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 k, \3 L" {$ o \6 W1 Sset k (k + 1)
) h: k" I# q! I6 H], r) K$ W t% @; H1 v7 N
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
% P4 _7 e- L2 n4 Qset global-reputation-list (replace-item j global-reputation-list new)6 `9 `( j5 c$ L$ i- P1 V# z
set j (j + 1)7 I' I3 N7 P& n6 ?3 W; d" t
]
1 ]& V, ~+ P# [) Aend# o9 T3 i2 f; [8 x
. Q) _9 b' q$ s+ j! d5 C
- Q- l# p9 ?7 q" E
. B5 L, B, I# O- _: W5 ]/ W fto get-color
4 a' y% z0 ]# C( c1 @, B* n
8 e; {; |/ m! L7 K1 H3 mset color blue5 ]0 G) z3 D+ U2 @
end: c+ V) c9 n2 s5 s
6 ?( B2 p: R/ g9 Pto poll-class' R9 Y) a* q% W& r
end
: T4 H9 u: S4 M1 J6 [8 t7 u$ x4 u5 V6 ~% `
to setup-plot1$ |; ~( o& Z( R6 G+ F
7 \. g* o, b! ~2 ]+ uset-current-plot "Trends-of-Local-reputation"+ S) U+ ^' ^% @: n
# k& o3 a% p2 T7 L
set-plot-x-range 0 xmax0 i5 U: d) ^1 E( H% _1 A7 G
- b- l5 {: J, Y( v/ O5 Lset-plot-y-range 0.0 ymax' c& l, `9 o: p
end5 `: W7 \& c- o+ T; w6 u! c
" B8 |; q. p2 h' y$ C* a
to setup-plot2
" a* r+ f; X% h* J8 C; r# y* Z) O- g- q4 J5 ?7 Q, e# N: ^0 Y
set-current-plot "Trends-of-global-reputation"
1 }, _ q: C \+ ^2 n0 b: S3 i; C# p+ F: G
set-plot-x-range 0 xmax
4 U0 z- l* g3 u% a1 _) d1 J4 G% I% u% y
set-plot-y-range 0.0 ymax4 C i) `8 A; V6 U. n
end
) n+ d8 J: Z+ Q$ I5 G* K9 B5 e
: u/ T O/ v* t( `- B$ p5 Bto setup-plot3
9 h2 l& P. L, {+ y& v3 t" I T( v1 v) j" Y0 C" o
set-current-plot "Trends-of-credibility"
4 D6 ^: `3 @5 B6 b; T% K1 R% E @! j$ \
set-plot-x-range 0 xmax9 Y% g5 A( s- O3 ]
( `3 Q( s& B( N0 O5 R, R1 L4 ^
set-plot-y-range 0.0 ymax
/ F$ C' ~/ u; ^) N/ E2 g# P9 kend
4 ?+ a R* o% w5 S5 l. J* e/ A; ?: [$ O' ?" t6 ]" Z s- X/ G
to do-plots+ u8 y6 R5 u! z; W& j
set-current-plot "Trends-of-Local-reputation"
, G1 r( a9 A, ]* q9 P7 n$ ]( L; m8 Lset-current-plot-pen "Honest service", j! E" L3 }/ k6 _' F; I
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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