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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* \2 r5 {& @2 y, P
globals[
3 l( w) H" R& [8 \xmax
3 N2 e: n8 _# d2 R3 U$ r2 ~ymax. G* }( t8 L3 V7 D6 p* y+ p$ }
global-reputation-list6 x6 y2 u5 p$ p
/ x/ [2 y7 q9 W& N2 q" `4 ~;;每一个turtle的全局声誉都存在此LIST中
7 }! {* w! n2 g4 bcredibility-list9 Y4 K0 p+ s8 S% O0 V3 f: d) ~2 T( }' m
;;每一个turtle的评价可信度9 b! O% c, }- F- a4 q2 L& U
honest-service
8 A) O- x6 m. H( n7 P+ s/ a: O# T( ?unhonest-service8 ?$ } J( P6 n u& ^
oscillation' i4 u8 }4 I* v& c! K1 ] Z1 e9 E
rand-dynamic. C0 [/ \6 {9 _
]) [; t6 F2 r* M9 e" N$ P' y' h
/ a, w+ K& G' b& @! u" D/ oturtles-own[
. K9 O2 t$ h' ^! c* atrade-record-all
5 Y9 h# M0 F0 I. Q0 S5 z) a;;a list of lists,由trade-record-one组成/ J1 j3 H$ m6 F x* F
trade-record-one
; c% t2 k/ M2 Q0 e;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
# Y1 ^0 @6 X8 o6 }/ t$ ?# x
, w* |5 R4 p0 Y5 j) }* Z;;[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]]
, @4 A: s6 n" q$ q9 Itrade-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]
& v( U! K1 @) M& {* g/ Q+ 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
" i \3 N% W+ Z% N+ k" E" |neighbor-total
/ \0 p M% C. ~3 Q2 U2 ]# Q;;记录该turtle的邻居节点的数目4 M" p; @, u0 g$ o
trade-time# y l% ?2 `# |) m9 X8 i/ o# u
;;当前发生交易的turtle的交易时间
' Q0 e2 N$ E; \+ \2 C0 g# Mappraise-give
+ s9 U' _: d) e7 ], ~3 O1 Z I;;当前发生交易时给出的评价
5 R0 Q% Q R+ N u+ d: [0 z. Bappraise-receive& z# Q2 R7 f8 c+ W, Y: d
;;当前发生交易时收到的评价
0 V3 F5 u4 F- ]+ aappraise-time
0 k& f I3 F4 P# W8 h;;当前发生交易时的评价时间
* r+ B' c- H) a6 tlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉8 Y O2 g0 |; p D
trade-times-total1 V X" v, }8 a. b/ z
;;与当前turtle的交易总次数6 T: J F( c P3 \( q
trade-money-total
, I) t3 n/ Z4 U1 q. G6 z! F1 ^;;与当前turtle的交易总金额) c% \% [7 s( Y, j; @8 S
local-reputation
3 \5 h& r7 |* b4 nglobal-reputation( L' |, N( E( _; k: `8 m
credibility2 T! N+ _( X6 p1 V# ?
;;评价可信度,每次交易后都需要更新
$ j4 ]2 I B) {6 Y& bcredibility-all: B5 K* p) h0 Z8 T2 x
;;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 B2 T1 N* b4 w$ G; E
% s, ^ Q. I( g2 A% w. t
;;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
0 o9 Z5 s/ C4 o" c4 H- \credibility-one+ L* y% m R& k( h3 l' R6 ?: u- Y
;;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+ U5 |; s3 v p8 K5 P9 P+ ^
global-proportion" A `1 q1 B- P. U9 O! o2 ?
customer. Q4 h+ t$ |( g" k
customer-no
" ?2 _8 J& z7 W" Z4 a2 G8 Vtrust-ok" W; W) h2 e0 z% t6 C
trade-record-one-len;;trade-record-one的长度( y+ y7 J; b7 @7 }% b! C3 d |
]
6 z; _9 V& H. \$ R
+ x5 G6 x& B8 Y4 C;;setup procedure
r- K) V1 J9 P' U2 J5 h0 U; b3 h' }* q
to setup
5 R4 U7 K7 X, a. [! O6 F! Z+ n) w" ]0 F% y
ca
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initialize-settings
9 [4 r1 w' t A {3 N! M7 x/ u% E& U5 I I! d( z2 S2 }3 F
crt people [setup-turtles]
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reset-timer% r5 c. }- b" @8 n9 K* E; d
/ H9 q* U9 l \, t& B
poll-class& x/ ]0 y/ c" K8 M
" [* F; V4 c6 p) w3 J+ O% c; P: ^setup-plots
' s2 P% d9 H. r/ t- v
1 b* L# n- S% l$ f/ S9 e9 R% B9 G! {do-plots
, Y3 c3 m$ c9 m6 Mend
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* e h" u$ B6 j! D9 xto initialize-settings( ^2 z# u5 M( v3 u% h
3 ]9 c! M7 d. b5 t( J% I
set global-reputation-list []( e K. L- t4 V; ^/ P3 O2 e
) Z' c" v9 F1 |4 O4 s3 L
set credibility-list n-values people [0.5]
" p, X$ q7 z- @9 g5 V2 M) \+ v) X
) c+ z9 f. ~( E0 ~: e6 a4 xset honest-service 0. g' a1 @$ a5 H4 h6 [& ^# a9 s
, n7 P' O8 s/ Q4 O$ o( P
set unhonest-service 0
) }* V+ F" h) u/ X# A0 Y$ q7 W3 F8 A, w! H% T3 i
set oscillation 0
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set rand-dynamic 0
J$ ?1 d2 C E" T5 B$ t% t8 w. V. cend
2 L( ?9 f$ H6 K$ ~/ ?8 L! }/ J
# e% z. s; e7 f) s* J5 Fto setup-turtles
- }( J C; Z& ?" Z" E" J' d. Tset shape "person"0 R4 G, U3 i1 [4 V3 G+ D& ?
setxy random-xcor random-ycor* C" G+ E9 R9 _5 k: }6 [
set trade-record-one []/ C$ f$ e% x R/ r c d
# `5 x$ R8 M+ D
set trade-record-all n-values people [(list (? + 1) 0 0)] # \ [. p {# c
/ l( Q' f% w. W$ b( ^0 Q4 [set trade-record-current []. N/ [& R9 H# C4 T3 Q0 d9 s
set credibility-receive []' {$ n+ F: K! P* N, w V+ x' g# W- ?
set local-reputation 0.5
( h! E& C* O3 bset neighbor-total 00 N+ Q5 z8 t. \4 Q! X- G. Q
set trade-times-total 0
% J1 {/ L5 f% ~9 s3 v% Tset trade-money-total 0/ d3 a) X1 V# L$ @6 G% E0 ]
set customer nobody
Q7 p6 S, p8 `5 Dset credibility-all n-values people [creat-credibility]
5 l8 }/ e9 b, C7 T: Uset credibility n-values people [-1]2 Z- g, Y( _$ _
get-color2 h M8 Y& H' b4 V1 A, g! P7 X6 J( `
2 w' |( I( E) E- m: G$ J: W
end
! q! S7 a1 u3 M1 M! F4 ^
5 m5 j: x0 e1 \; ] N. {$ ~3 c8 `to-report creat-credibility
# ~/ u, k- v4 a% |report n-values people [0.5]
8 ^& I& c6 f* P! C9 p, x& C* send1 R& I. b; @5 Y+ r. D6 G8 ]+ q
5 r2 m4 C; w$ ]. w I. r
to setup-plots
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set xmax 30
3 S/ m, J' i" K/ B( P
/ T: q4 X4 V1 B* [set ymax 1.06 l; v% z% u$ L7 S, z2 ]
& P/ C4 O, A; O, ^/ p$ oclear-all-plots, b$ C" O8 a4 v, W
) n2 [& i. x" q" @setup-plot1$ l g& t' B$ y4 V3 E8 x
5 d0 G4 O$ [) Msetup-plot2" V ^0 C& |, M1 s
* W }+ z4 K9 Gsetup-plot3" R5 |( q/ P: H0 Z0 B% i* P
end J, [$ e y8 m" ~& g
- `# \3 K" Z) i: k* `4 M! s5 v
;;run time procedures7 L0 ?* @3 {' g. E, a' u
2 q2 b" M4 q; Z( O1 v/ Kto go2 S: M" ^. G0 ^' [
) P- y, m0 t8 b8 X5 v$ W, I3 Aask turtles [do-business]
3 C" T2 N$ K: Aend) f* s8 v# `) M" C/ b0 x2 ], r
4 q o2 b9 u! e+ `) pto do-business 1 v( e. V, v- i2 ?: r" y
) j+ U9 M$ P0 J. m, H
/ k) t6 e4 W r% z+ `( u @rt random 360
* r; c0 g. T6 K5 t3 U. Z U. n4 j! i& K1 J L
fd 1
2 W& l7 n/ @1 P5 p" _0 G3 O2 R' d; f a) M3 t
ifelse(other turtles-here != nobody)[
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: D# j4 B3 X# v; C8 h' ~; O5 aset customer one-of other turtles-here( `! h" S O. _8 f1 d5 \- e6 j- t
( i6 r; @/ V" b7 {' H Y
;; set [customer] of customer myself
* ?" N' c9 H, ]; a
' K/ o, l* ?3 i6 o; jset [trade-record-one] of self item (([who] of customer) - 1)
- d& _; j' h3 d: O[trade-record-all]of self0 J2 B! l9 r) |
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)# M! c+ ~& h% S, `5 {6 T
[trade-record-all]of customer& b" S: C: j3 M
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set [trade-record-one-len] of self length [trade-record-one] of self
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# m% _% M* l" X8 r6 [set trade-record-current( list (timer) (random money-upper-limit))
$ f6 c( `5 H( R( ^/ H6 e& l3 z6 I) @7 x! m( _' ^
ask self [do-trust]
8 i* y4 c0 J8 l9 T) |$ D;;先求i对j的信任度; y& m m( t( N! C* ]
+ I, O% a, q, Y+ r- v; X
if ([trust-ok] of self)" c3 Q; D7 f8 `
;;根据i对j的信任度来决定是否与j进行交易[
% @; _( Z( E1 {" n, ?ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
2 x& T4 i! c$ @4 q1 O
. E2 W1 k; A# g+ A[; _* X; C2 X5 \$ e8 w0 |
5 @. g0 A, m8 H
do-trade
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/ a, R/ x$ h$ i! n9 oupdate-credibility-ijl( x( t, l% C1 _, a& T z
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update-credibility-list
+ L, p: }0 Y7 X. r& |& J" R1 N: C8 K$ Q& q8 \- X
; v, E8 M% Y; e0 i( W$ Gupdate-global-reputation-list
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poll-class
# |" E. T; _" }' G8 ^8 a; X9 e+ L& ?/ v3 a2 E W
get-color8 Q9 l. W6 r. C8 P5 I
1 `' D; U; R. @; Y
]]
& z8 [( N3 a: g( H& } Q r5 C
4 e" G5 w' f( t" u1 A4 k. l;;如果所得的信任度满足条件,则进行交易 D+ t& W- A7 e3 ~5 e! L
" ~9 s7 l) q% L% f1 }3 S i[
& P3 A: i& p3 V8 {: N) B. `. G H( I- e; t( o$ `
rt random 360
$ I% H5 r" i* B% q; S4 Q0 H- s* m$ f( v+ a1 Q' a4 I& A$ G5 P" k4 _
fd 14 R9 w0 {8 Q+ j, @" e u
* `* ?( U7 }; y/ S q
]1 a. F- N* m ^$ Y" ~$ q
( z+ J2 W/ J( [% a+ U& \" c
end7 b+ m8 P+ {7 [. q
0 k$ O5 w+ s3 [4 d% b2 T; \to do-trust
4 Y6 D( E/ z2 R2 h% K4 T2 zset trust-ok False. [" e1 }; x9 [$ D
- y i, H0 A8 G
# j \5 _) n2 U# f! x3 U3 zlet max-trade-times 0
4 [/ `% K% K0 x* i& Zforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 Q) I! v4 O; C1 ^let max-trade-money 0& i$ G/ }8 b: p7 r% g! p
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]: h9 n/ {8 |) ~* Q: ~
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))! ~- i& G' u$ r( T( b2 f: ~* y+ ~
# ~5 }4 \! u5 w0 h5 P4 u" m
4 e* H" P+ v6 s& Y; d* v6 _
get-global-proportion
" ^5 x `+ h9 v! O) q# ?$ P" W' M" Glet trust-value
( Y0 x, `: n! s/ r) z" m' d- Alocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list); i" x4 m& ?5 J; i3 E! L
if(trust-value > trade-trust-value): L2 b. }: q& W8 S1 L$ B
[set trust-ok true]
- H! W8 U9 N6 wend. V8 [( j, H9 s! ^8 H
, g% l4 P- u/ x) n9 eto get-global-proportion2 L7 O6 k3 l- j" {! r7 h7 m% f) ^
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3) ?( m5 l: k6 G0 O L
[set global-proportion 0]4 b3 z& d8 j2 o, q: b
[let i 01 o5 r% O z' \6 G8 s& {$ U( h) g8 X
let sum-money 04 W4 o$ }1 m! E7 C$ d
while[ i < people]% d- Q+ _) e% x5 w4 g$ s9 L
[
G4 a3 F* t- w! `if( length (item i% a7 m' ^9 k: K. O
[trade-record-all] of customer) > 3 )
0 c' F L @2 G8 _8 S[
~/ v7 L4 C4 a4 G' t, o" qset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
0 G; M0 W ~% J, Z+ P]
. N" b, f+ G0 q& p. W]
; T$ B6 f6 z% U6 hlet j 08 h Z' u; ]! C( M; t- G4 M
let note 0
2 _) p7 K1 l5 y+ twhile[ j < people]
6 D M5 c) V- Y[. k" M: B0 _7 u R( Y
if( length (item i4 u+ J/ t2 b) ^5 S6 r
[trade-record-all] of customer) > 3 )$ ^; j5 `4 W1 ~/ s Y! i* L' p' ]
[4 M* `. ]# v) i3 a+ p$ p/ D
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
; x: y" w3 z! M: M! u- x[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! }7 y2 N1 m7 S4 o* o( Y
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
4 l1 G* G p$ I r% U0 ^3 L+ M]4 L7 H5 A. x1 O& M5 u
]
}- v/ k: ?. l3 Vset global-proportion note# r6 X9 x; w& z8 y2 _
]
6 V7 r$ {" z o5 vend
' {' G- Y& J+ m3 |- i
, w3 p* f& S/ Z: S2 [to do-trade
: Q" ?" g- M1 S" D$ |# F& E- z, T( O;;这个过程实际上是给双方作出评价的过程" i! k6 z5 j$ [
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价* H' L* l1 g3 J2 q6 ?$ F! [4 g7 y" [, ]
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
$ k) [. b1 S! V, J5 sset trade-record-current lput(timer) trade-record-current
' O. ~/ F; p% _5 A9 `;;评价时间
' R v% R& H' L- i, D% Gask myself [7 J1 _ b. k' w/ G/ ]$ J3 p p. B
update-local-reputation- \ I7 C# {: z& \7 P& {* Z4 s
set trade-record-current lput([local-reputation] of myself) trade-record-current# ?6 o5 W$ @9 a& ]! j) B/ G/ U
]
3 D" v" j. k! [: }) o6 `4 [ e1 H8 O) Sset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself9 T: L# Y9 p5 X6 X
;;将此次交易的记录加入到trade-record-one中4 w9 j7 }: e' @$ k1 M3 Z; m5 Z, K
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
9 j0 q5 m0 S* p7 E( i( Plet note (item 2 trade-record-current )
3 l- c) r% J+ K, ], vset trade-record-current
6 H. `9 l) @, `(replace-item 2 trade-record-current (item 3 trade-record-current))- ]5 V* l" U7 }6 M8 ?: S2 j6 V" X
set trade-record-current
# I8 X8 S- F4 @* I" z3 B(replace-item 3 trade-record-current note)9 K) j- W8 J% Y( F5 o
( X# [2 r# Z& \5 G
; y: x! F; x3 K5 \, B9 B& {
ask customer [
2 r8 a/ {- [* ]update-local-reputation3 m7 R! h1 e& @! k* b
set trade-record-current! W7 W0 ]$ X" D1 b, G
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) * q0 C/ F, ^* F2 B6 o
]4 N. I: J3 x6 T& m. a0 v7 T) b
3 |3 p! R# B5 m. q% s, v" N# r3 s5 g5 ~: K
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- c, \- q5 O8 S0 P! J) ]* C& l9 B( K& P
" X' v$ a8 O% U+ h
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" a( f+ P H- G+ H
;;将此次交易的记录加入到customer的trade-record-all中# F0 F. O+ N1 G a# V+ z
end
0 B8 o, M+ R; ]6 O3 C
6 h s' O9 v: ^( f' X5 T: r2 }to update-local-reputation
. m$ [$ U5 [( g& f' i1 y5 r6 ~3 kset [trade-record-one-len] of myself length [trade-record-one] of myself
2 G) r! R9 b' A$ ~
- n6 t( v- x# H
- @# K+ z$ H7 ^+ I; a;;if [trade-record-one-len] of myself > 3 " B6 `" O9 A/ r `
update-neighbor-total' E8 V4 G/ p& X( ~ X1 M
;;更新邻居节点的数目,在此进行
0 s9 }! ?5 Q. a8 L# q, flet i 30 Q: P7 q. f2 ]% g, B
let sum-time 0
) g* Y3 K4 L# G9 Nwhile[i < [trade-record-one-len] of myself]
5 L% Z- E2 P G2 p[
# M* Y/ K( }' B. j8 aset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 s% E1 x7 U7 g: F) Q. X6 W8 [
set i
, a2 _1 [* y2 e6 m6 z& ~- v# F. g( i + 1)
% c0 b% {, F8 ]9 _4 k]8 n* x/ |, ^ F2 j) O: E; S
let j 3" Y! x- f5 @' D; b" f% a
let sum-money 0
& k; b) v8 P* z( x( r8 E4 Iwhile[j < [trade-record-one-len] of myself]" M4 i/ y7 Z+ X* e9 t w6 C
[
- U+ }) `4 d+ f; Hset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
( z, C2 I& l- y: K& c/ U" Rset j
: q9 d1 \) C' D/ ~- ~( j + 1)# Z! \2 u* `9 b$ k) g
]2 j' S1 @. W9 H& A) ^: [3 E7 r3 [
let k 33 a" X: {- G/ w& q
let power 05 X2 e# p: N U' ?: j/ @
let local 0
2 W: ?4 {* R8 n' f, Swhile [k <[trade-record-one-len] of myself]8 e# {# d! U0 R( z7 l
[' t& D/ S5 d" i9 m
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) . t7 K7 m2 D" ]8 }! s$ C
set k (k + 1)9 C% W1 @7 c% I' ^
]; o3 s. n5 L, Y3 w
set [local-reputation] of myself (local)
1 `+ h$ G& M* ]; ]2 J/ h8 E! U6 k8 X: oend1 `- k1 F, s2 O3 ~8 I1 o
0 {3 R( A' m% Gto update-neighbor-total
% C r3 x2 R1 [) g0 f. V8 l$ M9 t f4 O4 V. |& L v
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]$ Z. ]7 t; i* |7 R8 Z5 S
/ n7 o' |: |7 \8 s/ h' n+ w" y1 ?4 A n9 d5 D1 o% `8 u1 r+ @
end4 Z% n/ [; w, W5 Y1 B6 O
$ h u }* F3 a2 V7 T% C, Gto update-credibility-ijl & @ ?3 g- ]$ }$ \2 v
* O3 } ?) E. P* u
;;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。. H r% ?% f: a q
let l 00 o1 @; r) i, ?; J- ?, W) w
while[ l < people ]+ v+ x% R! X, @3 x0 K' f
;;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
2 w+ ?" j. O1 g[
0 M5 M) l8 ?" Q2 ~let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 d9 ^5 E; G% cif (trade-record-one-j-l-len > 3)+ |7 B3 m- f" `$ X$ S
[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-one5 G8 n4 ^3 `' |0 p% b
let i 3
4 n- l0 l" U1 }1 @* \" }let sum-time 02 D8 z+ ], U- z1 m
while[i < trade-record-one-len]/ J: n, j# n; v! |
[( X8 Y5 t1 ` h# Q [, Y% a" a! h
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ d: z& D3 Q7 k) @" U/ uset i' T8 O% R$ u9 |( ]/ V
( i + 1)# p- o+ \) G) X* s2 D1 X
]& ], V6 N& ^/ l7 g
let credibility-i-j-l 05 K- R" q) X- R; Q
;;i评价(j对jl的评价)
5 q: G+ o7 Z- Q3 Z4 Y( q, s1 g5 E9 clet j 3
- g ^+ W; R7 r5 V. |let k 44 U8 Y3 L, M% S1 C1 Q- u
while[j < trade-record-one-len]
l! S- l1 l, m5 l2 T* l[6 v8 ~: r) |& k. l* v1 N
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/ _: L, S/ X8 v" {; `8 b" g
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) d3 o. g1 e2 S* k4 N) O) R
set j; @' r% Y: @6 d5 r, M
( j + 1)" A2 v# i2 M0 E' g
]
* }5 `0 e* v8 Nset [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 ))
. U& g3 N% l, I: s, e
3 a% o8 C f5 C: Y4 u G; s: V! @; e# t5 x- r1 j4 \: T
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
! b& P1 b, [1 d;;及时更新i对l的评价质量的评价$ e( f0 `& c. ~
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]) l9 {4 L& O9 q# U
set l (l + 1)* s1 _0 v4 u& ~# r( _
], N$ w& M+ q ?4 w9 k X
end9 N. x3 r4 f# H X, u3 s& G, Q
$ N3 D' R5 R3 w8 lto update-credibility-list
) q7 m$ ?$ A) s% @6 W9 Ulet i 0' L& n; v3 R% i1 O7 t
while[i < people]
1 A. a# l! ]) r1 L' m1 q1 t[1 V2 Q( c$ n& r. v- d& c) E
let j 0
# A/ n2 } {- J+ {let note 0
% x. J0 H& _; h* G9 r' O% glet k 0" i# g9 ]1 j( b$ ^& {8 ?# K
;;计作出过评价的邻居节点的数目& p8 Z- s! l8 m
while[j < people]
?4 ] y4 P: M, K8 K[ C7 h8 ]& M, N9 O/ L' b9 I
if (item j( [credibility] of turtle (i + 1)) != -1)0 F& C& z: ^- A& K" ?
;;判断是否给本turtle的评价质量做出过评价的节点
& `$ v2 w6 r+ B* {+ P[set note (note + item j ([credibility]of turtle (i + 1)))
0 Z) e/ @; M" [;;*(exp (-(people - 2)))/(people - 2))]: y* B0 v' R' b* u8 ? W8 ?- m: N
set k (k + 1)0 h- @" o) h0 b
]
; O6 h, L$ x' U+ E/ b* xset j (j + 1)* `& M/ `. m* E2 J7 h" E s
]
2 \# Z' \9 K% `( A2 F8 A kset note (note *(exp (- (1 / k)))/ k)6 }5 y! p% l- o: A
set credibility-list (replace-item i credibility-list note)4 x% T3 A M( u$ C+ D6 N: ~
set i (i + 1)6 }! E9 n% c! i" G: a% E
]
5 U X D" S7 V/ Xend
2 v5 ~, u& U4 y3 E& Y% L, @' R2 m- ]) j- e( }
to update-global-reputation-list
( ~' L% z! c& I" t: {. q6 flet j 0
, Z9 j# {9 V$ _. w; _& Owhile[j < people]! i) T( N3 x7 Y0 a! D
[
. b* X8 C0 G* n1 ? Ilet new 09 z! D3 W/ O+ `) f9 D9 w) _
;;暂存新的一个全局声誉
2 x2 u3 J/ W: C3 h5 Y) L4 \" v( Qlet i 04 C- Z9 Q; B! B% B+ e: Y
let sum-money 0
5 r8 o, i" S: S$ mlet credibility-money 0' g4 H( B1 D) O3 ]. N9 _
while [i < people]
# R8 ]/ d$ A- f, V[; f. n+ P7 o5 d {
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
# L' J5 c7 K% A4 oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))7 q& o9 b" Q/ g9 ?, J4 l
set i (i + 1)
) c( _& `( t3 U* H]0 k4 a4 R! S5 J" J, p
let k 0
+ N! J: L B2 _let new1 0) U5 }% g- G" Z) i: h" r2 r
while [k < people]
( E" w) N6 U( k; B[4 C b+ R+ z6 T' }- G
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 i9 P' D) @6 |8 Lset k (k + 1)
9 j6 g* i8 M- x]) D- u% o2 N a% G& _7 E, Y
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) # [; S% g+ x+ A) O: a
set global-reputation-list (replace-item j global-reputation-list new)
7 R ?' k- J5 T ?$ h) w. _3 x$ bset j (j + 1)
3 Z& y5 K# l6 r7 {0 e: g]: G. f6 ?! t) J) [, Z. \- X+ Z
end
2 x/ h2 w: h4 s3 @2 V
* l" z. e; w2 l6 R# E' g
: R7 q# k; l' [) ~) ^ ]8 w6 `+ N" E8 m% y7 B
to get-color4 ?8 s- l% W6 f. y
6 F( d# W3 I' B" g5 p0 q& J/ w
set color blue- d \' a- m- a4 Q' Y+ P) P
end
( o' b8 p, D: \+ ?& j5 g
* M7 A4 j' _0 B* S- ?, A! M' Uto poll-class
$ c9 s# s& a) P! H t# Uend
1 M/ _- g: E Z4 n. d
6 r6 _' {) d xto setup-plot1 |) U- Y% j% u. u1 J& a' ~
( `4 K! y" W5 I- E# g& nset-current-plot "Trends-of-Local-reputation"
# _' x+ T" K1 q# w; q2 r7 u; e& _! T f) o' W2 q
set-plot-x-range 0 xmax0 f2 u/ l+ M- g1 ^& i9 q1 J
: N8 D7 l- M8 i s+ W: A
set-plot-y-range 0.0 ymax0 E6 U* P1 p7 f1 f+ ]) J
end8 k) S) }& c1 | E
+ q$ `; F+ l0 Xto setup-plot2
) ^1 V2 s' F$ Z9 M, W4 D: V- c' N( E7 F" U$ g; f5 ^) W
set-current-plot "Trends-of-global-reputation"+ l% `1 r* z5 P5 t
- a' ~" J0 Z6 H& y4 [set-plot-x-range 0 xmax
/ i( {$ z! T. x& _0 W8 j
0 W& M; d3 i: k1 M& e/ Nset-plot-y-range 0.0 ymax
8 z f2 V; z& V6 f( I( ^0 Kend0 R$ G5 s' f; b- ~3 I
+ X$ f1 N0 P! B
to setup-plot3
0 }# _# G# E- j ~; {# T/ Z
3 D* R6 G ?8 a% d i" A9 ?3 D, ^set-current-plot "Trends-of-credibility"" M- y# I. \4 X6 u( _
- e- Q7 Y1 z) U {; o% `6 s$ fset-plot-x-range 0 xmax
# T8 S! k" U2 `8 C1 ?1 Z5 w# l4 z* p' y e
set-plot-y-range 0.0 ymax
6 p: e' D$ }7 B Qend3 ?& w" c5 ]/ s
+ x9 }/ F% v3 [& w7 U$ _6 U* fto do-plots
+ R" p- c; _! C0 T l# ~: D; Y+ Wset-current-plot "Trends-of-Local-reputation"! _4 z W( I& i+ Y9 |
set-current-plot-pen "Honest service"
& v, h5 ?) o- b4 I4 s4 }& C* Fend
5 A* _: E: p8 i( }$ I; I8 i
2 P( v p# Q2 H# B[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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