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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8 r# E9 ] v5 J0 C3 z/ i
globals[
* H! v( z) s# d- ]) Exmax' l* U Z; U* V. r
ymax
6 i3 V' e, C, j+ cglobal-reputation-list# M' r9 s i$ z3 |$ p$ Y' B# L
{8 N7 g' J3 S2 u
;;每一个turtle的全局声誉都存在此LIST中; Q. v. h; G/ |: ~: z6 }: T) S; O
credibility-list
6 d# |2 N6 p8 [# o2 C) V/ };;每一个turtle的评价可信度$ U7 J0 n" p5 A* N
honest-service
: N4 e0 U/ ~* Q: Xunhonest-service) [; s3 i5 }) l+ K) j, o
oscillation2 y5 v% q/ F7 R3 N% M) E
rand-dynamic; b) D7 @1 _% [+ |' g
]
7 J: ?* z/ \7 `8 `( b3 I% z# }8 E Y6 F4 h" D1 q1 _+ _7 j: S! P
turtles-own[( e: W' B! T1 k; L
trade-record-all% }! \1 }$ f' L' w
;;a list of lists,由trade-record-one组成; X! c4 ~( A( e
trade-record-one" @' ?1 N5 z# v$ c5 w n 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
/ l |/ K9 s$ |3 S& U3 Q6 L4 b9 t& K/ w) J. P. U8 a" z7 ] L9 [
;;[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]]# R" u8 L# H+ q# C2 D
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]3 A1 j# Y. C2 a/ ^! v, v1 W
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) b {! g! v' d# F
neighbor-total; E) N. s5 Z% A2 f5 r
;;记录该turtle的邻居节点的数目9 x2 C9 Y" }) T
trade-time
, u/ j! `& U! _& s+ H$ F;;当前发生交易的turtle的交易时间 z3 t' l+ g5 k& |% ^! H( V+ ?
appraise-give
& X: m& n- P! T1 y;;当前发生交易时给出的评价
) a; Z$ u0 z8 D' o* Eappraise-receive6 k7 Z; S; m3 ?% ]
;;当前发生交易时收到的评价
' H9 h ~6 Z! d. K7 kappraise-time
5 j1 b! }: Q {3 a- O% L;;当前发生交易时的评价时间; B6 \2 I( V" @
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
* z S+ a- x, {. @8 J5 Mtrade-times-total; R+ B; T; A& ?# f3 J
;;与当前turtle的交易总次数1 D8 D' ~7 w: ~
trade-money-total
+ [, H& M! v6 X: z/ W3 x# E2 W;;与当前turtle的交易总金额% c" o: D3 E" \9 G
local-reputation
- _) J+ A5 D- d& t+ Gglobal-reputation
* M. v6 _: K0 ^+ kcredibility+ ~ X9 O |( P6 o
;;评价可信度,每次交易后都需要更新$ R! A' G' _3 m) C: \: p- z
credibility-all
! c2 K; ]! W: n# k;;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 i; l9 M5 i0 O f d: p; E4 ^" d. {7 C$ r; [# M
;;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, b4 s+ U& e/ y! f2 E! U
credibility-one$ ^ _% A) a8 k8 r; T- A" j) P+ 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
; K0 {) f5 V7 K& {, pglobal-proportion+ R& h+ r4 H) t6 Q+ f" g) B" @/ a
customer& q' a9 c' H, C3 J# s
customer-no4 d' w6 W; B5 J+ k( \: @& h
trust-ok
2 @" A' ]0 J, \" utrade-record-one-len;;trade-record-one的长度
. b3 T) s- y2 o3 V6 x+ f]
: j- @* P+ U. ]! u6 i0 S0 L( d/ w. L9 c V, I
;;setup procedure" q1 [0 t2 N- y; H6 D
" m/ c) p0 }' S+ R/ w8 R; M
to setup
& B f4 B& ?8 W7 D+ F2 [& r% c' ]$ i
ca5 U) K: Q8 Y. y6 V4 `( j) C
( z/ Z3 N0 f% k& d9 r* Ainitialize-settings
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) N. S& q7 _: t2 Y! U6 N, c' Z, `3 mcrt people [setup-turtles]4 T+ [5 D, } Z% Z( N Y2 Y! [
# q4 s1 O9 m" o+ s+ Qreset-timer
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poll-class. f9 V- H3 d4 y, G% t
6 T5 G4 V0 g8 ? W6 Ksetup-plots
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do-plots
$ d% S/ ]( e O2 send
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to initialize-settings8 m- ` E, n" r* s/ J5 j1 g
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set global-reputation-list []
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set credibility-list n-values people [0.5]& Y# t( h1 ?( Y3 o
/ C2 h, K. O3 Q, k) z* q9 Wset honest-service 0, M" E: p, V7 g
! ?) c8 N3 o# y# l3 K
set unhonest-service 0
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set oscillation 0. A$ G% F. X! ]9 Y1 u- d
: _/ ]& w8 W. x, o3 d2 v Kset rand-dynamic 0
" a+ U4 ?) {" m5 e4 F- l4 Gend8 J# b. i" ~% F1 k
1 Z# ?/ t% B* c/ S& K4 Oto setup-turtles 2 K6 p1 K8 m3 V+ l* i4 l. L
set shape "person"
; _% w. H8 y9 b- ?4 H. y8 u! ssetxy random-xcor random-ycor
+ l7 X8 ?4 r! } R% nset trade-record-one []
3 O% }' _' i* |4 `* y1 e
: n' T9 v, A) P8 P+ V( X v8 vset trade-record-all n-values people [(list (? + 1) 0 0)] 3 n, u/ R" \2 l4 ?2 q& s1 i
$ R/ s) I% I1 O( |4 x* iset trade-record-current []
3 D2 u4 N6 K! S/ f0 z1 U. l$ Vset credibility-receive []0 O# C9 @7 [) |
set local-reputation 0.5% |. ~; r6 \, e' i. ~" | p9 m( [6 ~
set neighbor-total 0. q. n( I8 ?! }: t# E
set trade-times-total 0
" q% Q% C" W8 Z3 `( h, \set trade-money-total 0
9 z% \& p, a7 i/ H. Tset customer nobody& k* m ~, C h8 v* X) b
set credibility-all n-values people [creat-credibility]3 \0 m, F3 `6 f) ?
set credibility n-values people [-1]
) \) U4 F+ F( R' N# z" P( ~get-color, u2 U. F& t" X# f& j
0 l0 w8 \& z* |5 E) {end' L1 m8 u- B9 f/ u
7 l$ P3 F; {8 Q, G7 D- Z1 oto-report creat-credibility. |2 j5 W: b+ K/ ]
report n-values people [0.5]( V: s3 Y3 S6 |4 B( J5 }+ K: ?
end
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) r' s, O4 y0 m& F, V) h+ S* dto setup-plots% ]) A" r, y, p
1 `6 ?& Q) f: _% i/ ]
set xmax 30
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set ymax 1.0; F" [( E6 j$ T X6 ?( X: |
6 z$ o, ^$ F# k0 F2 nclear-all-plots
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setup-plot1" j w5 g0 N8 o! w8 M+ |
& F: Y* a8 j( U& E
setup-plot2
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setup-plot3
6 C- U" k" b- a0 ?- uend1 r, f- @. A6 d# |$ m0 V
- P8 f7 X6 {0 z' E+ _
;;run time procedures) I: O% y+ t) w1 z! {
9 W" J3 L" L7 q1 ]9 Jto go: e2 B. g$ }0 r. Y# S' w2 [' Y
/ a& }9 W- |, { f
ask turtles [do-business]
6 a' s" h% s c2 Lend
, N8 k4 I' m2 V4 C Q5 H. y/ v$ ^- M# F+ Z- m- g
to do-business " ]5 ~: Z4 x) L) j0 ?
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5 E$ u& y) j6 C
rt random 360
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$ N7 B9 L; O7 |. ]2 ?fd 1
: I1 a P0 F3 f& }$ L' h7 u0 X2 m
ifelse(other turtles-here != nobody)[. T4 h/ I5 Z5 c# j4 E' s) g
& H" C7 F t2 a. jset customer one-of other turtles-here
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Y0 j8 d: T* k: p6 x/ s;; set [customer] of customer myself
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8 }* v, O, O7 R2 {4 j+ _/ Pset [trade-record-one] of self item (([who] of customer) - 1)4 O% x" P$ f3 {' w
[trade-record-all]of self# }+ P* I; q. v
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
3 _$ J' I% ~2 ]. A0 q5 W# D( k) f8 P6 T$ ?: _0 C* H5 ]7 C! c5 c1 I; b/ |3 N
set [trade-record-one] of customer item (([who] of self) - 1)
3 k+ s4 k; O& C- o[trade-record-all]of customer
7 ~; F6 |6 s% w- k: _3 W2 D# W$ |* ~ w4 p8 z
set [trade-record-one-len] of self length [trade-record-one] of self0 F. S* F r' G& N+ B: Z, w3 m
5 g# {2 c* H8 T' zset trade-record-current( list (timer) (random money-upper-limit))
3 K9 |. s5 O! M' q' A6 r" i* F e: U
ask self [do-trust]" Z$ v. M. u8 {4 t1 Q* w
;;先求i对j的信任度3 }- r9 c' ~, s
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if ([trust-ok] of self)
+ A4 V" }6 t( w& R( P;;根据i对j的信任度来决定是否与j进行交易[- n4 C) E$ @# h9 J# O3 t$ Q; N
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[$ L: P* C. y$ w4 L1 R9 l: T; X' g
1 |# E2 S& Q2 G3 D9 s
do-trade
: r7 P" R$ B* f1 G) t
/ [9 P1 L0 g; p v/ K; U' x. z7 Z: p( W7 t; Dupdate-credibility-ijl/ D2 ^7 J0 P: P9 y. z \, z# Y
4 e7 C1 z: {3 u0 f3 bupdate-credibility-list
5 x& \! Q- J) ^4 ?+ D" N7 H0 F- x/ ~& @ \, x
% E N8 B4 J% d3 |. }+ y* C& Yupdate-global-reputation-list4 N% |( Y) q7 G* ?
1 E% S* b2 i, `9 \ q, D7 Epoll-class
5 U" e5 t& P1 `7 Y" v) J" L/ Q, f w5 N+ o
get-color( ]8 N; k% Y9 `% X' ~
3 t6 D) B3 j1 M" c* @]]3 b5 S6 O* d/ k L7 M
5 T0 Z$ h* N5 t' c, E+ a;;如果所得的信任度满足条件,则进行交易+ Y; g+ l |& V1 b2 N
0 T; {6 q0 I. C2 ^[
5 V2 j% y+ w: R5 L* p
J8 H: [& x# A" L Srt random 360
7 n0 t* G" h* D- T% O) y: l9 _: j7 Y5 P! v
fd 1
* M& k0 F4 G! U* ^$ x& h1 g$ Q2 v6 q9 i9 N3 {0 N
]0 y2 z& o6 U' w( y
4 g+ o/ }+ g9 L& d( \9 Fend4 V6 ?- M7 P$ r' P: P' D }
9 ?" G5 ?0 q$ ~to do-trust % \; b3 G. [: y
set trust-ok False! J' d7 i7 s- J* z
" Q& Q' j7 P& l( n5 P3 {$ _
" c- l+ c' ?1 e, u
let max-trade-times 09 D' d' M( E# h y3 Y! v
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 ~1 F7 A7 K( ]6 j3 nlet max-trade-money 04 ~0 l1 g9 j. R# X, K+ ?
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
3 k- F3 j) L7 P. o1 Clet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
, n n6 W x4 H4 D& q
( R) ?+ a1 p6 n4 M
+ c2 }1 v1 f0 t; t' @' D$ l2 c" sget-global-proportion+ q& W8 k; V6 Q" K6 J
let trust-value$ |7 C8 ?+ x5 ?% c! { `! C/ 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)
5 e1 w6 N% h3 p+ t1 `7 tif(trust-value > trade-trust-value)
+ ]2 D$ w& k# C r9 J3 _$ R[set trust-ok true]
6 e- e0 q1 p) O. k! C* {end
# i. `+ |+ ^4 x; P7 X$ b; Y5 u+ X! S5 h* c# S3 s" _) R
to get-global-proportion
g; w; ?! F& k: c5 }! Mifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)$ X+ m2 E% y" }! f! O" n% I
[set global-proportion 0]! g5 M# Q! C( I$ {/ a
[let i 0! v1 e* E) |) {! s
let sum-money 0
" i5 H- j- [* B# H5 T, ]8 kwhile[ i < people]+ W U, a4 s0 i$ D
[6 c$ R5 h. r4 G0 w3 k2 k
if( length (item i- n- i$ p5 F" Y( T
[trade-record-all] of customer) > 3 )/ i( t' K( A9 X. d* }" v% Y; ^8 z
[
! m. i+ U- G" Z+ L dset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
) I+ H( Q( q4 g7 b ~]
1 |$ i. Z2 }- t6 M2 h]
- T% ^- Y1 h: d0 Zlet j 06 ?) n I, J8 W& }, E* C
let note 0
0 ?9 Z, @: b* R9 w3 }; _7 `3 `% Fwhile[ j < people]! U! T" @5 ^% _. r: H$ u5 o! R
[2 g* d4 H# o, T
if( length (item i
+ Z3 J v; h3 o) U( H: k4 ^$ y[trade-record-all] of customer) > 3 )3 t1 X) y t) h$ ]$ I: z' P
[, o: b2 h' T! J& |2 v5 o2 }. T
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 D/ i% }- _- Q4 f/ D! p& c[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
! e" F- G) a3 l; `1 e* A[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
2 ^" z0 l7 w' O r6 c8 G7 ?, \]
9 a [8 K: E. {]
! {( L! d8 f& w9 [) D. yset global-proportion note
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end' W9 v5 L, ~4 L; a
" `$ X" d" ~, mto do-trade
j1 @+ r- {3 q4 F3 u;;这个过程实际上是给双方作出评价的过程
4 L8 k8 e* o. A2 Gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价* f( E) n: ?. n3 [( M( M
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
6 e- n# J. V9 C( v& eset trade-record-current lput(timer) trade-record-current) y0 A( [% e0 _- ]
;;评价时间
& R3 c* X/ a- [, ^/ ~+ c: J9 eask myself [
0 ?* `7 s- k4 D4 S/ Yupdate-local-reputation
+ _% c/ K/ B m6 Jset trade-record-current lput([local-reputation] of myself) trade-record-current1 d1 p) O% V( V: o
]. G: g. y) H+ b" S$ e M
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
1 O x$ ~+ E: ?) G! q;;将此次交易的记录加入到trade-record-one中
J9 g' H% p( f! S' O* jset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)) P. K2 Y- I3 C p4 M5 j' J8 B8 H" f
let note (item 2 trade-record-current )
# ~, }! O$ r% L, }0 pset trade-record-current
( w* X3 u7 e6 p! j( [( O. A(replace-item 2 trade-record-current (item 3 trade-record-current))' A _% v/ s" w5 t
set trade-record-current
9 N/ U, D$ ^/ \ d3 @2 w3 r(replace-item 3 trade-record-current note)9 u, E% U& ~4 |
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g; S8 x8 L* B9 |( a0 k9 bask customer [- {) B9 H5 w$ z2 X* `
update-local-reputation3 z$ g4 i3 M. H0 |
set trade-record-current* [" y* d7 R+ @, `
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 1 D8 Q) z4 ?$ [8 L5 b
]
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# N6 }8 ]1 h4 \set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& X2 R* I/ N7 K( T: n
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
3 a# j( C" V; o& c;;将此次交易的记录加入到customer的trade-record-all中" C( d, E; H% x1 j' Z. l O
end
+ w! Q6 ?& b% D5 r x. u
1 Y T- [; l5 R; I: U2 l, W& eto update-local-reputation
& U$ O/ N. M L# |" W+ g4 g1 Q. Kset [trade-record-one-len] of myself length [trade-record-one] of myself
3 O5 T$ F$ E, |. w; U# \
+ K4 C* q% t5 G3 e0 b R
- X7 p2 v& W0 c# F) }' y- \;;if [trade-record-one-len] of myself > 3 , C# A- U$ o1 U2 d! x0 F$ ^
update-neighbor-total
8 V. W/ ]( q, T+ P9 l;;更新邻居节点的数目,在此进行) c; w# v; ?- t' T/ L8 l+ Y8 b
let i 3+ p: A# F' D0 o) q# C H
let sum-time 0; C& X) F2 t; k3 Y8 I* } J
while[i < [trade-record-one-len] of myself]
( y, d6 L& I4 [[8 @+ k7 Q+ Z- q2 P: H1 e
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
! `3 A5 ]4 M/ F) I6 q; a& Uset i
$ w; ^) G# G$ L% v( i + 1)7 k- q7 H) M1 ~8 s J
]
% S+ r$ X. |1 U' M9 y: o- z2 s4 Zlet j 3& ~1 Z4 {$ j# J, M
let sum-money 0
! P o2 t9 K- l: G/ w8 N- @while[j < [trade-record-one-len] of myself]& A& q0 [+ e" z9 b
[ @7 d t; p- C% G
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)
2 T8 y' W: ~6 ^' D9 V' xset j1 D- K5 ]/ G, \* [ H
( j + 1): I2 g3 Z/ ^5 W* R, J, T. }7 O
]
$ Z5 r: J! h5 G5 ?6 l6 plet k 3# c1 f8 M+ v7 G c) {" N. e
let power 0& s8 b( ?4 U$ {- f4 t9 B
let local 0
: X% X0 ^& e5 uwhile [k <[trade-record-one-len] of myself]) i* ?! o+ ^- u7 ?
[' i o+ _! f" {& `- B9 ?" J
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)
* F9 ]7 u8 K5 x* X* Tset k (k + 1)) a [! ?: } S# |
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set [local-reputation] of myself (local)
& L+ Y p# B5 l% o3 o* a5 lend
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to update-neighbor-total
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" k1 v4 a8 ?6 [$ I# uif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
* M9 u! _4 w0 {3 L; ?
# r; u8 Z0 f# z/ e9 @3 }+ d% y4 B8 Y; O6 {& v' D
end, {. R, d* `5 y2 B8 A
+ F* C6 Y* g7 o$ n. _( V, v- K ^to update-credibility-ijl 7 m) F3 G2 L& K$ ?* Q0 I% R
/ x' O( C+ D3 D R: i) h3 t;;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。% p. h/ l1 x4 a; v: h
let l 05 M. z2 D- d! b) U5 E8 S1 ^
while[ l < people ]) J P8 p# Q ~- i$ J. E
;;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' W x. ^- H- o
[
Y; w6 ^7 y: o* [let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
/ L# @8 d; A* P# Dif (trade-record-one-j-l-len > 3)
5 [& m% f4 Q m. }. r3 M# C) ~[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- t) C. m4 p0 ~! g" B+ k
let i 3
# h* `9 P% @- z7 U& z$ alet sum-time 0; T0 e, k) M/ w
while[i < trade-record-one-len]
. Q) U" g7 @' n, o9 D9 m+ V[
# R# r# u/ ~1 Y7 g. L$ q& Wset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): G4 d: B1 p: e$ }& k( Z
set i
$ N! T8 E. q' p$ |+ U2 Y( i + 1)
3 L, {/ W4 t5 e% n W$ M# m: |]+ p4 b( P, D; B
let credibility-i-j-l 0/ H, O" l L+ N) p; P- Y
;;i评价(j对jl的评价)
/ l( ^3 f% ]) S- jlet j 3
! d1 X1 U! C3 m+ E5 ]- x1 b) O* T7 e' Mlet k 4 Q: E( |! J, u. z
while[j < trade-record-one-len]
0 T( T% E* n. }# F4 Z" h[4 k, D" r6 }3 @* b# s# O
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/ H+ ?! I- Z' _, 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)
, X7 v) R; _$ D7 f! u6 G8 mset j
R5 }- _/ ^& D4 `( j + 1)
: `" O2 l' Y/ a* c, I" l]
& Q) @/ Q$ h$ _* o4 q! d. |5 Wset [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 ))+ n* t% F) m+ H( k. ~* `
4 a$ k. @' j, }, ?3 y
, m7 n0 W% Z0 F# G" D& |3 f. w8 Elet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))3 j* s1 h D* C7 G- r
;;及时更新i对l的评价质量的评价
+ ~6 X$ q1 k2 c/ S$ Nset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
8 ]' {$ p, m+ o9 ]5 q6 {1 Oset l (l + 1)/ O- ?2 m& K' e1 K- L
]5 n' ~0 q# r* ^; r' b9 t* L
end; L1 U. I( p6 a; K0 W$ I
C4 e, L8 @8 C6 I% A( t2 yto update-credibility-list$ P; m. ^5 |- T
let i 0+ V, b, F3 n. P1 C o# Z& C
while[i < people]
4 M/ P- C) b. o[
0 u& Y! ^& _, O) {let j 0
" k2 O b' S5 x, K* \, q. e$ Plet note 0* _0 k/ G: j$ T" A' y. {1 m9 S* }
let k 04 O6 K. C3 G# N# m; F6 n5 n) t
;;计作出过评价的邻居节点的数目% J2 z( `7 X( Z4 {3 z
while[j < people]" M8 z+ [9 Y7 J3 z/ m
[
& l' }1 b9 H5 E. z" Y5 ^' Zif (item j( [credibility] of turtle (i + 1)) != -1)
5 K9 m* I/ ~; m. m. G5 y;;判断是否给本turtle的评价质量做出过评价的节点6 |9 Z* Y/ r2 |
[set note (note + item j ([credibility]of turtle (i + 1)))& R$ H- ?1 u( t2 M y
;;*(exp (-(people - 2)))/(people - 2))]
- Y, D, j6 J8 C# lset k (k + 1)) L: U/ Y4 K6 j: z+ h1 L# o
]
7 L) s0 C- C; n* f; }* J& Xset j (j + 1)) N5 w+ v0 u& m0 h0 n
]
$ u8 U& [( Y/ H, V+ d& G- E9 ^. ^set note (note *(exp (- (1 / k)))/ k)1 ]0 ^$ b# [% z' V8 O( {0 ]& \
set credibility-list (replace-item i credibility-list note)
) J9 R" r0 k: o' Bset i (i + 1)3 ^6 S! V. t, D3 b; N/ m+ G
]
|$ w+ A5 b8 r2 a5 n" U# g. Lend8 l3 }# l% b- |" Z
+ b; h! n2 ]) ]: nto update-global-reputation-list
" c$ z6 \; I" e- S5 Mlet j 0
% Z& y. w" H; K; }0 jwhile[j < people]
! r$ p. Y2 i7 h# g$ `[; x4 m% G# ?7 g7 t" s1 Y
let new 06 ^, C2 l, Z9 y
;;暂存新的一个全局声誉
! K T( L5 p& W- y7 f5 slet i 0
) ]* K: r( {4 J% ]( k5 _! dlet sum-money 09 }$ I$ N* b+ {' W; R( C. m
let credibility-money 0
) P0 A* K- o* g3 cwhile [i < people]
/ {: L, W# O o/ T[# @4 E/ e/ l5 P2 L9 I" C, F
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 O; ]1 ~; H% D
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! m% W, W5 ^8 d# J8 e
set i (i + 1)# ^8 ]& L2 U1 i8 Z
]
- ]% D* ?) v0 S$ m% u. ^6 e C+ flet k 0
, b/ n; Y, L, H) B" ~let new1 0/ _8 ^4 y& E- n& m
while [k < people]$ y; I/ B9 b3 v7 U1 b/ n
[
' e9 v% m( \, n3 o" pset 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)
$ k: ~+ p9 s- U. f$ j3 G- I% x$ Gset k (k + 1)
1 e. E: [, P4 |5 L: j3 q]
7 U5 r. S7 P7 l3 A w i8 rset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( J7 S; J0 ]' S/ U; Kset global-reputation-list (replace-item j global-reputation-list new): l2 S9 h/ G2 S% `& p0 b* ^
set j (j + 1)
n9 v* Z& i. [; s9 i: E3 k9 L]
+ m- [& s" ^" n- Vend! i7 F' D! J9 K2 u" q
* p3 ?7 z0 P# e7 _+ i' J) q
9 ]1 Y" l7 Z5 k. m5 b' x, c7 I5 \" E9 L8 n: d1 b0 v# F
to get-color; f( q+ |% I( b
! ` g2 n% q) [' ^ j
set color blue
9 j- e1 v9 e6 O- @, f% Gend
- l1 v+ h; E- \: K* Z) s5 G v* d% m0 e! h' t) V
to poll-class, [6 n1 @" _& J: M t) A: _
end
8 z- ]& e6 r: [$ ]
! I& T& n: x5 d ~to setup-plot1& A* Q3 ^1 s0 X$ _% p) ]
# {% i! S8 J* \% ?5 Q1 w) ?$ y
set-current-plot "Trends-of-Local-reputation"
8 a8 r4 I4 d& f# g8 W' g2 Y& n/ ?# o/ X; D) F
set-plot-x-range 0 xmax
8 {" [$ q0 o+ A. }. B6 w- ~4 A9 h+ y- ?5 ~" m9 f
set-plot-y-range 0.0 ymax3 I- Y7 r5 Y4 |6 b( A" m- e
end- [: }+ r. b+ j! u' F- m8 ]
7 y& p$ v2 d7 q7 Qto setup-plot2
# T; D+ b0 `" E8 q. z
* d; o* N2 ]: M5 h0 Qset-current-plot "Trends-of-global-reputation" J" R# b0 t' W4 p3 @
0 D U4 L; P3 z# ?& S) hset-plot-x-range 0 xmax
5 O$ m# O* X2 O S2 d% A2 f7 c( O: Z2 W4 ?) ]1 t. F
set-plot-y-range 0.0 ymax
( @: @ G0 o6 zend
3 C) h6 N1 V" n2 N
8 E5 m6 O) D O: @! oto setup-plot3
. k4 F7 X7 j+ X3 `& i. l3 \1 K4 \6 G* F
set-current-plot "Trends-of-credibility"* @: Z1 H. i$ w7 a2 ^+ C
, p8 S8 l' q: }7 w3 \& B3 H
set-plot-x-range 0 xmax
& O! i3 T/ {: S! y9 w9 D# x. t2 I
set-plot-y-range 0.0 ymax
( V" Y7 k7 H" e0 y* j) Aend; h0 _9 g/ p1 b$ m( a1 \0 ]
; h/ I5 F" l( j$ `# f! Fto do-plots0 U2 B; a7 Z3 {+ m
set-current-plot "Trends-of-Local-reputation") y5 B% v' B+ R% D( e
set-current-plot-pen "Honest service"
# N# x) g( `! k, f1 J1 vend
E! b! ~7 Q# v3 S- Q- O7 M# P5 }; T* S! A+ O9 l
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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