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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# k3 q& X1 t3 B. l9 Y8 R
globals[, J E9 j/ }: J& s, R3 Q3 T# X
xmax
2 q- s! Z* F2 ~$ K7 jymax
$ L* W3 Z3 |5 S1 U2 X2 Zglobal-reputation-list/ E0 @ {/ m- p% m4 S; L
% J* a% A8 b; o1 V6 ~2 k3 N- p
;;每一个turtle的全局声誉都存在此LIST中
- a7 ~6 A$ J Q: E' W6 i8 Hcredibility-list5 {& M& @: X+ `# U
;;每一个turtle的评价可信度
/ e! O v; {3 ghonest-service
; Y" Z( ]) `9 W' j! c% Junhonest-service8 x0 S2 \/ R( O: s% o
oscillation
) [2 Q$ f% u; u* @( Q) arand-dynamic. }7 s) J6 o4 `3 x5 |5 y
]
2 F8 f6 M* h9 b9 A' w
4 D, g1 M& K2 @# N6 Jturtles-own[
9 i0 |+ n1 a& y. qtrade-record-all% @ S& l& ^. u9 A7 C0 a( m5 T( Q) v
;;a list of lists,由trade-record-one组成
8 @& {. _6 x' d: m4 o3 btrade-record-one
7 }3 h7 L1 h6 y5 n2 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$ y& ^- x- i, M5 m+ ~& I( Z! U3 c- d
( P1 Z" f0 o( ]# i: ^;;[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( F8 m+ D' V$ U5 {+ q/ Z% K. o
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]
1 n+ X: S, y3 x4 _( ^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list3 v+ {2 `0 i, v% J
neighbor-total( z3 H" M, O4 p l
;;记录该turtle的邻居节点的数目
4 f7 F6 E2 ?. Z/ s$ _: Itrade-time
5 Z9 i. D: g& J3 t* C$ Z;;当前发生交易的turtle的交易时间1 [7 E; Y' p2 S* c2 I3 E& u
appraise-give
) ^6 K$ g6 R2 C; n;;当前发生交易时给出的评价
/ ^" [0 i3 B/ M5 C" v/ yappraise-receive, R$ M5 k$ l' ?- C2 c: U# r
;;当前发生交易时收到的评价% {' V6 [6 ?/ G, W4 v* q
appraise-time
8 E ?# C- f9 t+ C0 b# E2 O;;当前发生交易时的评价时间
8 Q; n4 j/ r- Y* [local-reputation-now;;此次交易后相对于对方turtle的局部声誉
5 G3 y- B; k- T0 r& |trade-times-total
! V& x1 K# {3 f& q1 V2 F5 G. C;;与当前turtle的交易总次数, o5 \! d0 j) b- t. j4 P: o0 q
trade-money-total
+ ?! ^) q2 h$ V) u h4 s;;与当前turtle的交易总金额
W1 ]+ ~; P: J9 K* n& Clocal-reputation
F' D1 a! l$ `. U0 f0 gglobal-reputation
" ~, u( o1 N+ g& ^credibility. e6 R% Y7 y& [" ^ w
;;评价可信度,每次交易后都需要更新
+ V- W% W& f) a vcredibility-all" x3 Z; ?0 h% {/ N" ~
;;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
+ J* b9 @& R2 b: L1 ?* ~- H, B% V$ ~ Z
;;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
4 p) t/ F _( gcredibility-one% h# b7 T; g- d# F
;;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
; p2 o S ?1 y5 V3 m$ K4 Mglobal-proportion& ^( S# A! o; P2 A
customer
1 [0 R+ [' W2 j; [customer-no, j* _! U# B J2 i. \: C
trust-ok. d2 b" ~5 J/ k. w: y7 G& @" y
trade-record-one-len;;trade-record-one的长度
* v3 w' B9 F! l) u* F], ]' Y$ ~. B: K2 W( E" Y' x& D
4 c2 }8 u& U3 U; g P;;setup procedure
2 ^ @7 k0 \9 S- r+ q( s+ ?1 b9 `1 }! F7 b6 {
to setup6 x; ^, Y' d% K2 `0 G4 k; L) x
; \' N+ S1 X& O W1 B6 @ca
" q5 V# M6 t3 ?" J4 w$ _: O! }; w" a% z1 V& T* i
initialize-settings9 i' x) r- c* P3 d3 v% n5 h
0 t' K6 U$ C! G, Q) W; ~2 Dcrt people [setup-turtles]
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) P6 ^; u$ S1 z; q1 Mreset-timer
, P# Z4 E6 i0 q w
% Z' U2 j$ w* w F. |9 ]+ Mpoll-class/ U! E, I& g( h8 e
( T% \+ _* ?' H/ C% H' z9 J8 y9 [
setup-plots8 b( @ s1 h7 o. ~. [7 g5 g
) O3 ?* b) ^3 G! [+ @( S/ w' m
do-plots! H, D' ~" B) u8 O0 L. {
end
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to initialize-settings* ~( Q; z' h. C u
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set global-reputation-list []( h" ^6 z$ g9 q: R1 f! V$ a
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set credibility-list n-values people [0.5] B) S' \0 O1 i/ |$ U5 L
- A& s& L5 P; ]5 sset honest-service 08 P4 [% `! D( k' J
- z( a( i# B# W9 T( L% V- Kset unhonest-service 09 p9 E- _5 } ?; L5 j
& [0 v3 g2 u/ _: E: Z+ q: Z
set oscillation 0
6 q! R. h6 q* Q$ L
0 M. N$ c- p7 \: Sset rand-dynamic 0; p" j# E; a$ @0 y
end
+ e+ P1 R) q& K
/ A2 ^4 [- m. |% M! B7 @# U3 l( _to setup-turtles
2 _0 }, I$ ^& X7 d$ d) G+ c' E% q% bset shape "person"8 }, c g9 K9 s8 X' h: @7 Q
setxy random-xcor random-ycor
$ I) p$ ^' _( n* b2 g) N" iset trade-record-one []
8 @4 k: K3 s4 E! ~1 w! s3 y9 K) u; k; B- @
set trade-record-all n-values people [(list (? + 1) 0 0)] " h7 x& M" R& F1 k
6 [- X, c% i7 z9 T6 Z! l* @set trade-record-current []
& F: I7 n# V4 qset credibility-receive []: b+ F5 c+ k5 v3 P1 c! R
set local-reputation 0.5
" a4 ^) N+ Q: m$ l jset neighbor-total 0
( @4 j* n4 B. zset trade-times-total 0
. S5 u% x( e9 ~2 ?, V: e$ `# Sset trade-money-total 04 @3 B) k$ F9 ?
set customer nobody/ r* B! O" V( [4 V
set credibility-all n-values people [creat-credibility]
" I# ^1 N3 t u2 F: F0 Xset credibility n-values people [-1]; R- u- ~6 }% @( ~7 v
get-color
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. _8 Q& D$ c! J7 V* N0 Y* |end+ @+ A; y$ J/ K. N4 F. R. C
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to-report creat-credibility$ q# Q( a4 `6 w- V- v( j) s( n5 ?
report n-values people [0.5]% M$ x$ B: e, c% \/ w
end" z9 Y* |) ^/ w. O. x* V
5 a4 a9 V5 I' L& g8 T. Fto setup-plots8 v8 q2 B7 p% ?+ E* U
# F+ S6 ~, }7 U' _8 Hset xmax 30
( I2 d* m' `2 U L9 \) c! g/ v1 O" b4 a% K6 X3 b1 U$ ?- {
set ymax 1.0
* a5 l/ M8 k8 T: u- d' q
& s% H) n) ~3 Mclear-all-plots* C/ G( ]; [* @2 d
2 D2 Y- U& W/ i* x" h
setup-plot1' M/ [' B5 s- q! h s. ]
/ l" _+ ^1 w6 I4 |" e8 l
setup-plot2
" }( T! U5 i- c* Y! T0 Q9 `, G* W4 r
6 K5 J9 S/ f5 f0 @) I4 Tsetup-plot36 G, i1 m4 k; {- { }# J
end$ F) ^" e' S6 \7 w7 @7 J
) r, j9 \/ H$ D s: |- `
;;run time procedures9 B) A* Z8 w, J! N
) e1 M5 S* L/ S- z y% e7 ]to go! J0 c- o/ X. C- R& t
. k4 u, J) t% L1 zask turtles [do-business]( }$ l- T! x& Q% \4 m2 s5 O6 `' D
end
6 E$ V; {& t% \0 ^
6 v6 S7 M% S. S9 H& Qto do-business
R' }$ X# K* j5 z: s$ i1 x, w4 L4 }. w6 i! a' N. s$ I' O+ J
5 x3 a- C" y5 h$ U6 F
rt random 360( z- A3 E7 Y/ V& X
8 P/ R8 h' h2 {7 `. g9 t9 ofd 1
0 ?4 I1 X$ u( \" i% v7 \8 D
9 K0 E) k: T% ~) j$ C& Pifelse(other turtles-here != nobody)[
x- q7 ~& m) B$ u6 r& `, w
0 `. a" o, b; Q3 N( d Yset customer one-of other turtles-here
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;; set [customer] of customer myself. w- o* H) r7 w' e
9 [) b; z- v. \! Hset [trade-record-one] of self item (([who] of customer) - 1)) m/ w$ o' I- h. ?
[trade-record-all]of self$ e8 [ Y- ^9 G+ u; R) }6 |
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
/ J4 Q' a' N- y: {% _( |1 C3 u) T' m/ _: p! r) j$ A U2 t
set [trade-record-one] of customer item (([who] of self) - 1)6 P" h7 g2 L4 J5 ~9 F/ M4 ^' e, ?
[trade-record-all]of customer
# l- }7 k- l% _; _1 ~4 l b" i$ z" {9 K F& K/ K8 O
set [trade-record-one-len] of self length [trade-record-one] of self
: Z. F7 p8 w1 W+ |* O7 m2 c n( c! o1 C9 V) P& @$ h0 {$ e: l# R+ ]# a
set trade-record-current( list (timer) (random money-upper-limit))
0 A& H+ t! O" r& E: Z
! p: ~) d s' Hask self [do-trust]
% k" w) t) k/ z;;先求i对j的信任度
5 ~0 c+ I) x/ O* H, K; F- q `# w. m, L5 p7 n2 Z5 s
if ([trust-ok] of self)
. w' [1 j- _; `4 s( i;;根据i对j的信任度来决定是否与j进行交易[ w& q+ Y0 I! \- T0 e, }7 G
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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C% r! w- i P* b+ Y[' B4 y- W" y, |7 x# h$ s
4 W) }- X' Q/ d- l' E
do-trade
( c3 G) k: z) v+ s* s) ]# i' h8 J. z, H1 M
update-credibility-ijl! R5 e, t" U. Y& d- z* N5 v
# a9 E: O6 A/ u
update-credibility-list
* c+ R G, q' c3 N& P6 U* n
. j. A0 ~8 L/ H/ v9 a/ C0 D' B, R _ U
+ B! f% R7 x9 I7 l$ v9 W1 T- lupdate-global-reputation-list
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poll-class
$ c7 {% F2 M8 `. m! M/ ?# }
+ n* q$ c9 ?" w |; u( oget-color- R; i \: a, u0 z* Y2 _ \
$ i% e/ M1 C h! z1 P9 y; m$ s]]
, }' g( D- c/ }/ X' m5 q+ d# p2 W3 ?: O9 n
;;如果所得的信任度满足条件,则进行交易1 L2 B, B! f# ^
' s6 A8 x' E c! t6 q$ M1 L
[
` `& u1 p$ I8 i( Y n
+ n8 Y* I8 L# u5 H& s/ trt random 360
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- _2 M0 ~# S# t4 E2 k! Ifd 1
5 w, p \) B. \- w, B1 B9 E/ q9 i/ Z& h8 N# M# r$ r/ G* f
]
3 F6 |% G0 l! |. s$ v/ r2 p2 \# f& y
8 T r; @. A4 j7 s" Gend e2 P% P' `$ z
3 A1 v. T% V' k& d& L
to do-trust
$ w$ J; W% h, P8 y( Kset trust-ok False
( s8 N. t1 i2 i# v
! B# ]0 O0 ]: Y$ u$ {$ S
! n7 G6 V& g. g- z1 N- L" Y. i) ~let max-trade-times 02 c) B/ M2 v) M, N- L- q
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]* C9 A' O( K4 z( h6 l
let max-trade-money 0
" [( ], h4 m' {! g0 vforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
( v8 m7 T) @$ n8 ilet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 ~2 |5 j: M" c ^) n& e& _1 R. ^# i6 q1 K4 Y( b
) A( h. u, k8 E& L& oget-global-proportion% ~& Z4 x( T3 m# x9 p; W( a' B
let trust-value. g) Z4 d9 h7 F; C+ _/ M/ |+ Y$ g- H
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)
: H7 b8 D5 [" V% s& r' \& b, `if(trust-value > trade-trust-value)9 S5 a* o4 u+ |& m9 e% _8 t- a3 [
[set trust-ok true]
, i- A: c4 P/ Rend0 R0 }9 R' b! d9 [# j z. c
- q, i* q$ T5 |, f: m+ D; d* O
to get-global-proportion
* g* {( ~- q0 G$ v- z' Eifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3); @5 L3 n. H7 `% r" d
[set global-proportion 0]
8 b' D5 [, N- \; }" k* g& u9 G[let i 0
! G. N- ]# W: K' R+ ^( Glet sum-money 0& [* @' o, z8 K
while[ i < people]
- v1 m0 o8 ~! s3 S$ {3 M1 W[
( f2 {3 d5 n7 h" Xif( length (item i
; J0 n+ T2 ?' H1 N" x( W+ [[trade-record-all] of customer) > 3 )# X( |' P5 w6 H+ ^
[
3 O) `2 _+ I. }6 f! e% B0 mset sum-money (sum-money + item 2(item i [trade-record-all] of myself))7 F: T9 S) w- ]5 Q+ M) O3 _2 u) c
]
1 f) @) j' L+ c( x], U5 a5 r2 B+ B
let j 0
* W7 g5 ~& c" R9 R+ y: V. P3 clet note 0
- s- I# ^$ b: Q, B7 b owhile[ j < people]4 U& \; Y f: K8 f, @* X) s3 v" A
[3 _+ e1 @$ J: Y! o
if( length (item i: N1 r" f/ {; u4 D
[trade-record-all] of customer) > 3 )+ u/ |' e/ r# s* ^3 w0 |
[
! @7 H1 S) n: G1 @6 Yifelse(item ([who]of myself - 1) [credibility] of turtle j != -1), ^7 q/ [2 p# L& I
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
H/ t; J! |1 T% d) [8 e[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
/ Q+ ^7 }3 Y4 {/ J* K/ |]+ J) R' ?3 M" a; P% Z) ^) U& F
]
* m, a5 ~/ e! U, a/ Qset global-proportion note
2 }* x6 q& T/ c2 s" S ^]
0 A3 d& p( ~5 s: o5 W1 eend
4 j: D, S& u+ b" l- M3 q8 w" d1 ?, a( g. u9 m2 g$ h" D& f
to do-trade$ X( n7 J5 b+ H* N
;;这个过程实际上是给双方作出评价的过程
9 H6 t2 ]; O) c+ }$ N' yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价/ P8 |5 b/ [: l( c8 W2 q# ^
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
. v9 m6 i. T2 }9 J! tset trade-record-current lput(timer) trade-record-current
0 a2 t. U }& ~;;评价时间; E# [5 W8 n5 S8 }" D( ?) T
ask myself [; F" h3 j$ f z/ q) H+ e$ g5 E
update-local-reputation
& B0 m" v# u) _/ v# c7 Cset trade-record-current lput([local-reputation] of myself) trade-record-current% ^+ S: A7 V+ i& r
]! B, }5 {& c# B/ O5 d5 H
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself( M' l" Q, |& O, T$ o: p- W) g
;;将此次交易的记录加入到trade-record-one中
5 v* \- G) d& h# k v, a) Vset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
8 N h/ `+ h flet note (item 2 trade-record-current )+ ] w- b5 E8 p8 h
set trade-record-current
4 g% w2 p$ A, M% k, v& E( g( Q(replace-item 2 trade-record-current (item 3 trade-record-current))& q; X5 ]7 E- _1 F l' W
set trade-record-current
$ i' v0 x T& x% x% d! s4 }7 }(replace-item 3 trade-record-current note)
5 j+ s G4 t; h+ S1 `( X3 S, ?1 V5 S6 o" B6 z' f: e
9 U2 I. f5 z6 H* R* d4 ?) ~% z( ?
ask customer [
0 I/ S1 A4 [, |4 W/ R4 Jupdate-local-reputation" {& x3 L6 x9 u' `" N% i- u: {0 B
set trade-record-current. T8 X3 L( X2 F0 w: ?6 |7 B
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ; u: u* I$ f; Q9 J
]6 M1 X* W0 L [) K, b+ ?
' H" h0 C' G3 ]2 x3 F: V
7 I* ~' M( Y6 L1 ?* r$ K$ hset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' g8 L; O9 p+ X7 n1 c! J; K& X F
5 g! Z3 C( d7 \; V
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
/ c3 n: F5 g H4 d; w$ l+ r5 q6 E9 Z;;将此次交易的记录加入到customer的trade-record-all中
$ |$ A: D8 `& V9 s7 c2 ?end
# n( u ?$ N6 O% y+ q/ ^( d; O$ P1 ]' X2 W. X- _) N G
to update-local-reputation
" C- g- n, R/ A/ z: J% M# Bset [trade-record-one-len] of myself length [trade-record-one] of myself
4 {( b) g& i2 I, y( v7 U" ?4 u) ~- E9 [1 a! O
, Z0 s) c9 \5 F9 Q0 u7 P! R;;if [trade-record-one-len] of myself > 3 % M' S/ F8 H+ e+ {2 e1 D
update-neighbor-total
( [4 V" V2 n* R) X8 C;;更新邻居节点的数目,在此进行
( F, _, I. x) [( v: ~8 v$ i! olet i 31 ^+ k B, }1 E; ~2 r7 j( {
let sum-time 0
# x# N/ H7 E# ~8 e2 twhile[i < [trade-record-one-len] of myself]6 ]5 j, S* T0 {5 V2 p9 Q# n
[
6 }& E" x: y8 P$ Q- q9 N& ^set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )/ q& I4 y) n/ m. [7 ]
set i g0 m: ^' I0 Y) w( {" q: y9 ^
( i + 1)! \4 {8 j- b8 J, f1 l+ h3 I/ b
]
& T6 v1 q" y0 ^: b* r& Ylet j 3 m/ k) C& d9 @' X, v3 w+ y
let sum-money 03 H0 C9 _# I- z) {/ E) ?
while[j < [trade-record-one-len] of myself]# |* U" O/ Z4 |2 M- e3 C& `6 _
[
& c2 g; g6 d- O J* qset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
' Y3 }6 j: w8 Q! Z. u4 h7 }set j- A5 i& _1 D4 n
( j + 1)& X0 j0 j+ c. X2 t7 S: {
]- L( o9 h. B6 P$ q# H3 l' @
let k 3% t9 ^" z9 A! R6 r+ h3 E* ?2 {
let power 0
6 v7 o: ]' T+ H4 K0 l3 `1 W0 Q6 wlet local 0
3 ?4 y; V, t, i' P" `! J( Cwhile [k <[trade-record-one-len] of myself]1 I0 b, C& l: L7 Q$ V# ?
[5 P1 J5 c x- H3 W
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) ) C: r# w" e: r; h
set k (k + 1)( X: g8 R) }% E" q$ |
]
: y8 l$ U" \( U/ x- Iset [local-reputation] of myself (local). G; ?' C4 F' [: L) T. s
end
4 g0 T( Y6 w1 M) c. a# B. ^
8 E5 a: }8 J, _ ~% J& o8 fto update-neighbor-total
5 _" ?% I3 t5 {% e7 c" b
, B/ M) D8 ]- q: {. {/ P7 Fif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
9 h6 y1 \# W# a3 X" n7 S' |3 J6 y- \& }) n$ T/ F" P
" h" a4 w& N! ?% a
end% s3 F ]$ T9 T/ ]4 `/ c8 C
0 K/ C( S9 s6 e: I% L2 p; p \to update-credibility-ijl
5 ? U- P) R- [* ^5 @! N# T$ R7 B' q; A8 d# J: V3 `) \7 P6 L8 e5 @
;;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: r0 ]' d( C# x$ g
let l 0
9 C8 @0 H, O! G3 Ewhile[ l < people ]
0 Z4 n, A: x. r5 c Q1 n- ^;;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
# ]! `- \, Y$ G) I5 x. j. {: O[
' j0 W3 Q! e# Klet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
: r6 ]% ~* _& K3 C+ Tif (trade-record-one-j-l-len > 3)
: a, ^( E6 v0 F& X( v* O[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, R# r; O9 r( X; L" p" j0 k
let i 38 {5 t% T w% _/ F
let sum-time 0
0 ]- M9 w1 D7 r8 `4 [: Owhile[i < trade-record-one-len]7 x& {, \: ^/ `
[" x( L) i/ j8 {
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
* f: f8 E8 z2 c2 ]set i
5 B' `. x4 O& N( Q c: k9 n( i + 1)7 K+ W& J; n4 f$ N) t4 \9 |
]4 h1 M0 a; V% E C$ [
let credibility-i-j-l 0
3 l+ H. `) c5 V) G# p;;i评价(j对jl的评价)4 b$ H+ I @" J3 P. t
let j 3
7 q& N9 d& p b0 O8 P4 Hlet k 4
! {2 E* w% j! j' J, D& L5 v! F& wwhile[j < trade-record-one-len]! r: I0 @! z2 j9 ~3 x1 P
[. Z/ C4 v+ O: H5 E* ^: O) p
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$ {, j! J& U* J7 o- O* R& g8 M" [
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)# _$ U7 w) B, F9 r- i1 F
set j
' l! I: m& o5 C% {( j + 1), f3 j E( \4 o1 p
]& @% L; A; s: W4 K6 x0 A
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 ))$ y7 Y, ?3 E; T; h' @$ _+ A. ]
" @" t6 R2 r1 x/ E1 d- ?
+ B! b) \! n* {1 l# L. t! Dlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
3 T% V6 r* M0 {9 i& A$ H* m;;及时更新i对l的评价质量的评价
* B* b: k0 x8 G% a" J( Lset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]: h7 e6 p# E& m5 s% ~, B
set l (l + 1)
8 [( r% G% d- z* I, D! d* a9 P]7 [; U% C4 x! x9 s q! Y
end
% P( U# D3 [# Z2 y& H" f' y# ]! a/ j, R" o5 h
to update-credibility-list% i3 ?3 T* P5 k6 Z1 I6 S
let i 0
7 ^/ T" H4 w; t. [1 P. Twhile[i < people]
- M- o" Z9 {" K+ K$ r- [6 h[# G/ q! R; z D" X: w2 [' r( @
let j 0
4 X$ r" i# F% i2 `0 elet note 0
2 X$ u$ U2 ?, a! L8 alet k 0
" @2 r# [7 x. j4 |4 };;计作出过评价的邻居节点的数目$ }: G3 f+ l4 C; a8 g+ Y
while[j < people]
5 V1 U9 O5 P2 j& `. E; a[
6 d, {' T. S/ u! `/ sif (item j( [credibility] of turtle (i + 1)) != -1)% x1 ]% ~ R8 l+ o% Y) e
;;判断是否给本turtle的评价质量做出过评价的节点- _4 Y$ V: J1 J
[set note (note + item j ([credibility]of turtle (i + 1)))1 n2 h3 o1 O4 t9 |
;;*(exp (-(people - 2)))/(people - 2))]" C, q' G; r: K' U9 ~: a% R
set k (k + 1)" A6 q/ @1 J' ]7 a1 l5 N0 q; M
]
* F5 @: Z8 s- D- F' H8 U% vset j (j + 1)
6 T- w1 `3 K: `1 L0 @]
" c. N2 w( H T1 Xset note (note *(exp (- (1 / k)))/ k)% q& F- L. i) j. ^/ ^
set credibility-list (replace-item i credibility-list note); j# {5 _& d% l
set i (i + 1)
) S U3 n1 J# s]; A c" t3 y8 `: x5 {$ ?" G8 h
end. B' B% G2 N& r! Q* J3 P( ` t6 e" N+ J5 i
( m- y) n- M1 ^to update-global-reputation-list
6 [( P9 Q: v' e8 `let j 0
5 `) A/ p. h1 v4 p0 w* n6 bwhile[j < people], N0 _+ v9 ]7 L& M( v) Q
[' K6 O- |# {. _4 W
let new 0
0 f5 v; K+ `! A. A8 L;;暂存新的一个全局声誉. Z, _1 q) d# m! B' j
let i 0
4 Z4 M; n" t3 tlet sum-money 07 H2 _- g& D. {3 g0 ~# D, F
let credibility-money 06 m: f/ N |* M
while [i < people]
) T, w5 d, s1 F. I/ F[. |! I" {) K- u9 u! f. l
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
" U* V; _; }% k& _# Oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) \3 f7 f, z' t9 R% M9 aset i (i + 1)3 f6 z" W, k$ K7 H% Q' b6 D2 D4 H
]; I: G+ U, Z* S7 Q0 v9 H/ [1 `! L
let k 0! J) x* h! C+ M' ^) s& M+ s) w
let new1 0
0 e- j' q# w+ Ewhile [k < people]
* [% b: S' K2 k/ z[# W6 h( T" l7 N% O3 N4 A* {! F4 o
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)( X, E1 T; X7 z' x3 _
set k (k + 1)
9 ^+ P* Y% G+ u8 p]/ H; R+ [& b: D T: y ~0 `+ G
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 5 @, [- d! l9 C: L9 c" h# P6 g
set global-reputation-list (replace-item j global-reputation-list new)
6 h4 R6 T( R5 `- g' F+ p& fset j (j + 1)
% @. V" ?) N; ^]
' I& v. t R, g1 q- F8 ?2 X* Lend
+ \: `1 R6 j& v' v x& c M3 \7 U! h
2 ]7 S U. {5 |
: V/ R3 k. o% eto get-color
$ ]9 H* Q i- r. B0 `
! t& o, j$ U4 ^6 v, ?- T, mset color blue
4 F; w+ ]* V7 h# t$ o, v. gend
, u) l- I7 L, t
6 n0 s4 z7 ~" ]+ t4 Dto poll-class
0 h; P3 }+ |2 @& v- P6 ^7 oend
' I0 v' T6 { y r6 |! D' U; Y1 Z
5 \0 c" j2 [1 R3 ^4 j! X+ z0 dto setup-plot15 H5 K* F/ p- g
- j; u: c5 u! M" q# e+ G) E! ?' d
set-current-plot "Trends-of-Local-reputation"
( R6 |& }! }4 p6 ~- J. e
0 z7 J. C: \. [& W7 |set-plot-x-range 0 xmax# ?( i. l8 W6 V/ x# c
' Y O2 \$ S( cset-plot-y-range 0.0 ymax- i7 B) [& {0 }- ?5 P
end! [; ], Y* u5 R* q
* ~9 W8 `: R$ b$ \% n' e, qto setup-plot20 U5 p& Y: t; p" V/ [
& [1 q! ~0 A5 C% u
set-current-plot "Trends-of-global-reputation"
% `& b8 w% y0 S2 }& j
+ g- Q2 O5 q8 E0 J" B* xset-plot-x-range 0 xmax
y2 F4 |, G1 R- V0 b7 w! P" y9 w2 F+ ]7 M7 _
set-plot-y-range 0.0 ymax
0 y$ B3 u f0 I. L# W4 y& Eend
# C) H4 Q$ a7 k+ v( y, V# D0 _2 J4 E7 ~2 S
to setup-plot3 x2 z1 F3 D' @ Q( y" t$ i
7 A& H0 H2 K/ ^3 ~& Q+ xset-current-plot "Trends-of-credibility"
! s5 i( n+ o4 {6 k ^9 W0 U1 n0 k( _& f* E/ K% h
set-plot-x-range 0 xmax
4 J. ?+ N7 M" Q7 K8 N+ z9 i
9 B! {. T& E/ B( h6 Q" A$ J# X' Oset-plot-y-range 0.0 ymax9 y' _/ U; x: a2 X& Q- ]1 Z
end
% y I h" P( }6 }5 x. E! I/ c6 u/ n: F' ?. x
to do-plots
! E; I8 X1 U" F1 g' z, rset-current-plot "Trends-of-Local-reputation"7 r& ^0 g" M2 c" x$ l
set-current-plot-pen "Honest service"
2 S9 R5 c3 g+ O$ ^( Q$ Fend8 x2 B% j2 Z* U2 w- L" @) V; G
+ k. I4 S# F7 c& v$ o
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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