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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
) T3 @4 ]; Z F/ N. u/ N% Rglobals[
; B3 ]: ~- @# ]5 Z. n! [7 S* Axmax& l1 p2 v# f, n: W
ymax
3 P5 P3 M2 E& \ c7 D4 {: J) hglobal-reputation-list/ w. A I* S2 t! |( k
# y( Y- U, _/ z: q! ^6 @; x;;每一个turtle的全局声誉都存在此LIST中+ K; p4 V. y7 P' H
credibility-list
& [9 \' W" z; r8 Z;;每一个turtle的评价可信度
+ k/ |/ P: L2 u1 X# h/ o. \honest-service. f" Q7 G2 r8 L
unhonest-service
$ u8 S2 V9 A1 S+ o7 Y! ioscillation
9 a p$ G" {# a- T* h4 Arand-dynamic) P8 A! `: p+ J2 O! M
]& x1 {1 d+ |, c5 d
8 @- S& [4 @2 nturtles-own[0 e2 a: ?( M1 H, U; P1 O. E
trade-record-all
% T1 G% y2 c1 x/ m5 H0 ];;a list of lists,由trade-record-one组成
4 q4 m4 {0 s4 k( _trade-record-one
! ^4 _2 ]2 S p8 `) n2 s" k;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
* E% B/ R& Z6 Z. y& C2 M5 N+ C' s' n( g1 u. H8 y" ^5 }7 Y" [0 w" N
;;[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]]
! B* R' v5 [& O* ^2 S; ^4 t/ u: B) O6 Ltrade-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]) o6 M: j0 A6 R1 A$ {" e; Z
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
, n. j+ i+ j& b* dneighbor-total
2 v3 J4 g. V3 G0 a* b* ?$ w;;记录该turtle的邻居节点的数目
$ D$ |( o9 @8 D4 L. Qtrade-time1 \& {/ n$ s( M% j, B
;;当前发生交易的turtle的交易时间
0 y$ L7 r' r% A3 ^' d* r! Xappraise-give% a! ]# a1 H x* v0 X; X' e$ W
;;当前发生交易时给出的评价2 V# J! `$ R% m6 P# b- L3 E: b
appraise-receive
, W% t6 w% J' B$ m& k! D2 [;;当前发生交易时收到的评价
% z% G6 U7 V+ S# a3 happraise-time0 X. r- p* V) c5 x- z
;;当前发生交易时的评价时间9 d* K" }* G; h" ^1 `- v. n
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
1 _) H3 w- S0 p% R% K& ftrade-times-total
, q% {: c/ Q4 V# w, h0 q4 k. ?;;与当前turtle的交易总次数
& E/ \: u3 H8 Y6 v5 Mtrade-money-total' J: v# o7 Q2 u F6 Z& H; ~# j
;;与当前turtle的交易总金额9 P+ V, g( S9 X. f0 Q
local-reputation
* O$ r7 O6 r2 j7 C D' z, Zglobal-reputation
# U- A8 V4 a) S$ i3 dcredibility& P7 H0 R/ {2 r. z* \
;;评价可信度,每次交易后都需要更新! F2 P/ @1 Z& @5 N5 J5 @/ U
credibility-all
+ M4 {$ F! l& e$ V# o' F;;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3 X* h! d1 l" s" I$ w: E- R: W$ ^
* S a# X, n1 [' A
;;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: Q* K5 ^4 G% ?/ m) N. }
credibility-one
8 y, B" G/ Q% A) R4 A5 g8 f. 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' A# U+ Y. \( M! d5 }. z: u% p/ k
global-proportion
+ D# Z: r4 ?& Y. ^! C$ h: Ccustomer. D2 {% z9 Z, c" i/ N/ y
customer-no
2 R4 D: P( [. t4 C* Ztrust-ok6 Y" c5 S1 W9 [3 O
trade-record-one-len;;trade-record-one的长度 @# |. B* e5 F+ L% R. V% F
]# X# P) y- v6 V/ w* j( }
' i" p, Z+ c- b4 e4 Q- f# a0 C, W
;;setup procedure
9 [& g6 `1 t) ^* _
; W- E5 k6 X; {* V' B5 J, Uto setup9 @' i6 {6 C s3 f. H' w
3 R! {0 E0 m5 s, A) s+ _
ca
: q% ~; G' D* `2 Y
1 ~! }) T4 a& v2 |+ z$ X, _9 I$ Xinitialize-settings \+ U0 q3 G: J& y
0 X. W; X% r( P9 l1 vcrt people [setup-turtles]
# q7 D ]) ]/ S+ ~; B! ]: k/ N# G+ L% l) \* V
reset-timer' i0 O1 S) M0 {! c2 C% o. w7 d4 l! y
) H, h; B$ k3 ?0 y6 J
poll-class
" z7 x; `, Z1 T! D! v* @' m/ N: `
: ^+ V6 I7 S6 x; Rsetup-plots, p' p/ s; i% ~1 W& ^. r
4 T: h% ~6 E0 D2 R) f3 |5 e; ddo-plots. S x% u2 |' G/ A# B
end0 h5 c$ Z2 U* q) S
6 h2 u% y0 Z5 K% u, G* V* x
to initialize-settings
) \! ?% i; X( h( ^5 Q: s( n- _1 V- `* A" ?5 y
set global-reputation-list []9 c; D5 D4 a. x* V1 @2 i- C. K
) H& [+ F0 a0 s! c3 a
set credibility-list n-values people [0.5]
! P3 v9 S# N# B7 r% \+ a5 J# |. G# R1 ], q" c" Z
set honest-service 01 \0 b5 E3 i2 R& ~1 E
; |6 x. j. m5 K
set unhonest-service 0+ E+ Z9 f0 E$ I/ a" D
, y: x/ q7 C$ l$ v) r9 g
set oscillation 05 g& d' C2 ~' h8 r
+ k; S0 ] N+ J
set rand-dynamic 0% H' ~% k R0 m8 d
end
2 x+ S- |% H! E. x7 J, s$ }
$ B1 E; D8 O' d' ?& fto setup-turtles
( i! N- b1 d8 } @6 \; J) Aset shape "person"
0 a+ ~2 |: V+ v X6 t$ ]' Xsetxy random-xcor random-ycor
& {2 R4 N+ ?3 l5 q% u3 d5 Yset trade-record-one []
" V- X6 o: k, R! e, [" Q" p8 m0 D7 I6 {2 b" j+ P9 T' P( ?
set trade-record-all n-values people [(list (? + 1) 0 0)]
; a6 q {# i1 V5 [3 H
+ U( p: v# }5 T$ T/ _set trade-record-current []
# T6 T; A W' m* w/ A0 {+ Jset credibility-receive []
* t3 E' u" t1 Z$ ?$ m7 P5 Dset local-reputation 0.5) B& U2 a2 |6 L/ U
set neighbor-total 06 r4 o, s: L! X' g f
set trade-times-total 0
# }+ a0 }4 O# v& O) z) sset trade-money-total 0
9 Z, {/ K6 l4 b, s( }set customer nobody
& J9 R' c$ x" v/ j& r) b- Fset credibility-all n-values people [creat-credibility] o* j, [4 M* q8 k7 R
set credibility n-values people [-1]
1 _9 A. H4 o2 f$ bget-color
+ n1 T4 Z, t$ N% B. h% [: \" o* M; o1 }# u, F! f G; K
end; Y% s- c1 U% P! t! U9 N {
1 u9 V/ Q/ l) f2 |7 } ato-report creat-credibility9 n" t4 J3 j, y* O9 K* [# ~
report n-values people [0.5]% _9 k# I9 D" {6 k
end5 q0 Y) l# u0 h& F# `8 J: B
) L, _/ {: K/ S0 G% ?' c& l# W" Oto setup-plots$ _9 _# ^; N J& i" @) N
' L" C2 h# r% sset xmax 30
! Z0 J6 K6 i! F% }1 i" T$ G3 ]$ j! Y
set ymax 1.0
( s' I) k! `- _- D. @
+ B+ J$ O) Y* P* _9 {clear-all-plots4 q: k0 ^$ W9 r R3 l T3 U$ g
& Y" O' g, u' P% ^0 ?( y' ^' D- @setup-plot1
/ Q2 Q/ k; k0 A0 a/ I8 ^; }, d- m) v, A9 v
setup-plot2' |/ T( Q" ~- W k: {, N
) \) E4 E; @7 L! g4 msetup-plot3
* l; K! C4 X1 h, m' Cend
[3 Y8 B6 w3 I3 |1 r& j) s, [% i' x0 z" @
;;run time procedures
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to go
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ask turtles [do-business]
9 R- _5 j( ]' T; c, S7 f: y$ t+ y8 send1 |* r* y7 _! R7 W# {
9 i5 G/ f# j5 @# cto do-business
$ x+ X H$ p5 r9 h
- c2 h: C1 c; q
* [* {( z6 z" i$ E" Rrt random 360% K# ~7 O5 u9 k# {3 m* D
8 K K! w4 M: W3 u* ~! E9 Kfd 1" V6 m8 K8 @& k% C! [: r' S% C% ?
% K6 P6 @3 p5 A9 } G: u- `ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself( B' j5 U5 e( l& j7 ?
5 s+ W9 j9 L0 E- ]
set [trade-record-one] of self item (([who] of customer) - 1)% b0 S$ f. m" ?! z- ]% a
[trade-record-all]of self. a8 k9 x+ N F. c( j. A- \
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self; n+ G }* ?7 [2 N- z
& H% w6 ]3 X# a5 S6 V( eset [trade-record-one] of customer item (([who] of self) - 1)9 w* A; H1 P) o0 o6 X% ~
[trade-record-all]of customer. U% _: Y7 @% Y! t0 r
, i& v6 H% K4 R3 sset [trade-record-one-len] of self length [trade-record-one] of self! a+ V3 o- q U1 i7 l- [
5 O; _# _0 H7 H7 G
set trade-record-current( list (timer) (random money-upper-limit))
+ Q4 S6 B& Y, Q7 c6 P
" u8 e1 j! O4 f9 I7 u1 P+ \ask self [do-trust]0 S& Y/ G- i8 S6 ^0 b, y7 e s# S
;;先求i对j的信任度
, J. R/ S8 t" I6 V7 U% o
1 a+ [& @" A# m J% }* z( [if ([trust-ok] of self)* ^2 T" Y6 o: }) u8 p. w0 x7 x
;;根据i对j的信任度来决定是否与j进行交易[ {9 T2 S# a* f
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
8 W2 b! Z" W% B. s0 o$ u/ a r" |
% x; t7 [/ @7 ?! T0 Edo-trade
4 l; ~* b$ N' _
9 b( j% i: U. Q+ B. X; r5 }$ Yupdate-credibility-ijl2 i8 ]. ]! C8 _
2 C* G" f3 l/ Dupdate-credibility-list# d/ \* n, Z* F" x6 d
+ n5 N9 q( o7 i" T
4 [+ W0 m7 R- a; b6 nupdate-global-reputation-list& R2 d- P. Y/ G3 m- v
) U# y) \8 v6 t% g# o3 g5 Tpoll-class+ T2 q. e( @/ J# T
& w0 E6 r; l( c, M& v; w
get-color1 O7 I) L ]. V. t% s
& i% d0 ~7 C1 H \4 t5 J( s( B% @; q
]]- R& |0 }. B* }3 \% @
. u/ s, H$ o) z1 V! w% W& c;;如果所得的信任度满足条件,则进行交易/ S; L" d' Y: s: [
k8 ~; L+ E! }
[: R2 ]" Q4 ]3 ~, Q
! g& G5 r* u" P! H0 F8 {
rt random 360/ o: R, P V1 }, E& C2 ~
) H( {# }2 k8 t( x$ d: l
fd 1
8 y# b0 S7 m [* q9 q) z* e3 S
6 D4 F. l8 B- Z+ c]
2 U0 K% L9 K& N/ ?. u" V( Z- y# N" k" d
end4 V' h$ L& s" F0 C( i8 b
7 q! |, ]+ F1 X4 Eto do-trust 9 ` m$ `3 ~' ]5 i4 R
set trust-ok False+ E. r2 P0 l+ k3 T- P$ o
4 m: K& _3 w& N+ q- G, B
# n2 N' P, E9 dlet max-trade-times 0
- V1 R. z' ?! w5 P% I6 D) J' G; B [foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
9 p, u' i# ?9 K1 M3 u! N4 d" ?; Olet max-trade-money 02 v, i+ q: e( E" u
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
7 k) ?+ K; M8 Glet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)), Z" t- Z* \" J) ?6 C7 h
, |# C; \8 r/ H8 h$ [0 ?' m" n& r1 q
( V- _3 I+ g4 t3 W+ Rget-global-proportion" B% |/ n0 y% n* _; \6 {5 L
let trust-value' o! c# D5 \+ l
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 k# w1 c% n) |% |0 Zif(trust-value > trade-trust-value)0 |7 ]) B& V9 C5 \: E% E
[set trust-ok true]
/ Y0 e0 G3 p5 S- ^2 c: o8 R' K tend
, b. F" D6 @" W7 }: D; Z9 i3 Q4 r& f* w' Y- r1 e
to get-global-proportion( Y* v. d' f2 F/ x; g% H
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 p/ t: Q+ n" ~0 q: x2 ~4 D! H[set global-proportion 0]
1 q. A9 H7 c& z: v1 M% S" P, p[let i 04 ~1 ?8 e5 F, ~: T. B& ~' D" i
let sum-money 0
( e7 w( u0 T. Pwhile[ i < people]
4 D# t, b9 T+ E$ [6 o2 L& _# t[! N* P2 m2 U7 L/ N _; r1 ? u
if( length (item i
8 m6 q& l& c% d3 Z2 E[trade-record-all] of customer) > 3 )
, n( Z5 x2 a$ H+ D& \0 I2 N[
. F7 ]; H* A- N/ @; J) i% L: Fset sum-money (sum-money + item 2(item i [trade-record-all] of myself))) G" C! B: Z. ~
]0 w% X. t6 f9 Z: ~( F# v& K
]
) C1 Z# [) R8 z7 I7 Elet j 0
: A+ n& r" y1 l. q1 C3 Y3 Klet note 0
0 n5 z# r% s; `7 C: D/ U# j& gwhile[ j < people]
+ v: u- ]) ?; C! H6 r/ L+ l[! \0 `0 I7 k. H& K
if( length (item i9 K5 H I4 D0 i m
[trade-record-all] of customer) > 3 )9 U2 A) f, ?, O3 f+ h7 T
[
! V4 L" ]4 D+ c) }- H. Nifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)' ]( z& \( U2 J- X' q) g. F
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]. z: T- F7 Y2 L6 u
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]) r O; x7 U; a
]
9 e" |' Z& k! ~]
: Q! A7 |1 a0 n" K- O7 Mset global-proportion note! A, a: l4 m: z) Z/ B# S7 [
]5 @" }2 j* V# j5 {% s! w2 [, R, f
end+ g5 R6 n' X# N4 q
" s6 D! V+ u5 A4 ^: l- C. S6 i) j
to do-trade8 @) [5 Z$ u, D! u
;;这个过程实际上是给双方作出评价的过程( Y$ N# A" E. l
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价 d* F# D; q" O4 m/ y9 i w8 a
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
0 Q: R3 ]% Q0 m, L7 a0 Q9 n1 L0 ]set trade-record-current lput(timer) trade-record-current
1 D u6 \- ~* w" M;;评价时间7 Q9 _# e1 K! `9 [' o
ask myself [# e* c6 w. l4 e
update-local-reputation
; A3 Q4 k% L* @3 L; p. sset trade-record-current lput([local-reputation] of myself) trade-record-current0 D: a* @5 R0 T6 Z3 M+ n" G
]2 t. _0 z8 z, t B' ?. U0 I
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
: o, H. R x' \+ a" x7 l( Z& l;;将此次交易的记录加入到trade-record-one中% h1 @1 R7 Y! D0 O$ r* M
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
" h( B. O# g/ P- c, j/ `+ Vlet note (item 2 trade-record-current )
0 O% N* N ]/ q9 b7 ?4 iset trade-record-current
2 S2 j; @$ a$ A. C8 b4 S7 ~1 r4 n(replace-item 2 trade-record-current (item 3 trade-record-current))
" ^# d. y: L7 b, d! Y7 `' X, Oset trade-record-current
9 V1 H* G f2 K/ l(replace-item 3 trade-record-current note)9 g2 i; r" n3 N- z1 R
. ?/ L6 T% z- z0 N) L2 S" n2 @5 p5 V ~9 U" Z( e3 k9 A
ask customer [
8 u& j( U5 ~5 tupdate-local-reputation
% o* A5 ?* x7 U) wset trade-record-current0 x) T% o! R N" n6 x& m+ V
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
% l. {6 A0 C0 Y% U3 M7 [& e]
# x+ `' g7 d: n4 E: O* f2 A$ s3 X+ Z: U9 F+ A1 g+ \/ y* {9 C I' I
% Q& ^5 d$ |( R0 W( G4 |: Pset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer) G9 q" M9 W% g' }8 p
3 F z6 Y7 D' L7 Y. Uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))+ a- h S+ Z9 U n( g/ l
;;将此次交易的记录加入到customer的trade-record-all中& ~5 D- \) l; }
end4 l/ T$ p- X, F R$ P
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to update-local-reputation
~0 t. g) \% B* A* M; T Rset [trade-record-one-len] of myself length [trade-record-one] of myself
+ H3 B6 a J( W; w. B Q) a3 k, q, Z" t6 Y
Y* X/ s c, {2 [8 ~6 G3 |
;;if [trade-record-one-len] of myself > 3
7 R- v, \( v& g) Hupdate-neighbor-total
( { z! k, b: E8 V- X4 d% v;;更新邻居节点的数目,在此进行
9 v @2 n" Z! z* wlet i 31 [6 U( C: c; M
let sum-time 07 H; \! _& \$ E
while[i < [trade-record-one-len] of myself]
* R0 Z* d U5 q, w[
4 i& z4 _4 P$ B* w6 Rset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
. l/ {. M% n6 Y4 k/ k8 o/ x$ oset i4 o' b% k" m, E' c4 E
( i + 1)0 A, I& `9 r; {* C( w( h' t
]
/ D T& S- y& l8 tlet j 3$ ^- c$ j+ b2 h8 ?" }! y7 S8 I
let sum-money 0
! O0 k) f$ g0 Y4 b' M% swhile[j < [trade-record-one-len] of myself]
" Y! U8 O x% Q0 R+ F[
5 H$ `" ^: l' N4 G* 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)0 u2 R) g) @$ m4 h' R3 F
set j7 P6 t2 ^2 E3 s5 E4 ?$ U- I
( j + 1)* S, A! o8 Z7 N3 D
]
* A, S8 w# `0 w( U; H* Mlet k 3
, Z) r7 b5 X- h- |5 flet power 0: j, ~5 z# k" f5 [, ?9 u
let local 0* N; O: Q1 h$ L$ X
while [k <[trade-record-one-len] of myself]
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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)
8 u' B3 J) @8 f1 uset k (k + 1): D' T: ^, a& S
]
" k/ t5 w4 Z# [) [; ]set [local-reputation] of myself (local)
$ v; e" w9 U3 r0 h! J; b( K) p$ Xend
9 c* k' X7 s. i6 G" o& \: Q% |: S: k7 |: q
to update-neighbor-total
9 B, _# _& w5 b2 N
7 C$ z( s5 I& I" bif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]- J# n9 t- ?6 e: y+ B7 I2 K1 a
0 C3 }0 A! [. M/ t9 }
2 U9 i+ V. S! |: R/ u$ I. aend. G4 y' {! c" K1 p4 P) b
% p/ V1 l( Y* M; J
to update-credibility-ijl 5 O5 h; J. _3 J X" _
; Q( G( t( S Y; ?
;;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。6 ]! @7 o. _9 @
let l 0
5 a! |3 O6 e# X! R( a8 swhile[ l < people ]
. R$ z0 b; ~( h# e9 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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; a2 l7 q# B8 Dif (trade-record-one-j-l-len > 3)' x- W: t) Y; r% Z' 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
% E9 N+ \4 m' I. S, |0 v: `2 tlet i 3; g) c& `) Q1 x/ a# v, b W
let sum-time 0 p3 Q% T& [, m4 \& h4 f3 [. p
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), I6 e6 j( f, b: P: a. i- G: M
set i
0 f! |$ E8 z! r: i, p, u) R" H( i + 1)
8 Z* ~" L# f0 L]9 h* F D Q1 k7 h+ U4 f
let credibility-i-j-l 0
4 Q! u. D% z) ]& g u' }7 n;;i评价(j对jl的评价)
. J6 t$ ^: z7 L- i7 f/ ~! tlet j 3
. f: G) H ?4 O' Slet k 4- n& g9 _6 Q5 Q9 S: h* f
while[j < trade-record-one-len]7 s1 W% U. i; T4 O1 ^# @* D
[: U$ Q) ~" W$ ]" k; B
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
) f' Y+ G: l! }( T1 q/ }( Zset 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)/ W+ i6 {/ F' {( e3 w
set j% x3 \3 k. y& Z% s/ n$ |
( j + 1)
4 Q$ D- W. `; [& M' a]
: c. W6 t8 |, h" {' i9 p- }, Fset [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 )). a( r7 `/ W7 y+ q
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0 _6 E4 t/ J# o, N/ h# |let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))+ w- u3 ~: h `. g9 U
;;及时更新i对l的评价质量的评价
( Y3 q! y" A7 I7 U9 y" Sset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
9 D( y& j- U3 Uset l (l + 1)
3 s; Y/ r! T5 o9 m/ i' Z]1 x7 i+ U. J6 K5 s M$ L
end3 S6 ?% M8 s) m: p) A
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to update-credibility-list$ |5 @$ W o* v2 I5 t; s" ?
let i 0
7 T, H& a- h. E+ K1 Owhile[i < people]: e7 w v1 V) T( J" k4 |! O% y
[
. b/ K: Z7 r0 y" @* ^! D; R; glet j 0
2 h% D+ u# t: `" ]8 clet note 0
) N& J m. j9 ]' |4 S0 Y' Nlet k 0
+ o$ n* ~' r$ Y* x, i8 Z;;计作出过评价的邻居节点的数目4 n1 _8 B# w$ x8 h: ?$ k/ H& C
while[j < people]
+ x0 X6 Y5 v; ? \- j[
' h( m- c! x$ Gif (item j( [credibility] of turtle (i + 1)) != -1)
# P$ I; b) V" i4 M& t# R5 q4 Y;;判断是否给本turtle的评价质量做出过评价的节点! o: b; D# P7 h. J
[set note (note + item j ([credibility]of turtle (i + 1)))
0 j! m/ J8 ?' Y' R) E9 y;;*(exp (-(people - 2)))/(people - 2))]6 d! `" z1 X# w+ n* [! v. v% H& L
set k (k + 1)
& j$ V: Y7 G4 g# [0 W" C]
* m1 o& ]$ ~. U* k2 kset j (j + 1)
# o1 L# P k$ i9 n: N( Q]1 P: H: @: d9 P" B5 Z4 R M
set note (note *(exp (- (1 / k)))/ k); r8 z/ |! ?; m, @* S
set credibility-list (replace-item i credibility-list note)
- b- B) P- b. n. l8 u5 `% f/ Z3 Pset i (i + 1); _+ j9 J+ C( c9 c
]
7 ~3 L7 B6 N1 f9 Yend; Y2 D$ \" _5 ~9 m
8 g7 v% H& w7 w% _# w: Rto update-global-reputation-list
: |* C0 T4 j x5 a0 M8 Q" v0 ylet j 0: |' @+ p( Z3 B+ h; R
while[j < people]
. K, b3 B5 y' u1 I2 O; Z- l[
; t' E0 {: r- D. A2 ]9 p+ ylet new 0
& S( v3 Y) Q: a8 Z' ?( S;;暂存新的一个全局声誉1 A/ }) H" ]9 B! x
let i 08 J5 h( ~, y: I9 f
let sum-money 00 ^: G; c& G& z' K, e" X! y" K
let credibility-money 09 d+ W: u! z% {1 b, g" b
while [i < people]/ W' q1 V& v& J+ f
[' l" \% L' ?* R) w& ]
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ }5 X& v9 _" _$ H# y O8 oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))1 K4 ?6 a" a$ B; d
set i (i + 1)
) a" G9 ~- z' P5 l], y0 h4 ]- W! p" W3 _% ^
let k 0 f4 ?; |4 e) e4 _7 t& K6 v& d
let new1 0
9 h' g5 v: k7 Lwhile [k < people]
4 ]0 T3 l( {# `: t2 b9 x% n& ][8 t" H( {' J, A0 _
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)3 r! Y1 A! J! g0 s, ~% Q# \2 M
set k (k + 1)
: K6 U; X9 T. ]0 q/ S, p ?]& ~5 J: @2 }4 Q8 y& {" g& v0 s5 l
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) V7 d) m( ^% {
set global-reputation-list (replace-item j global-reputation-list new)9 ]6 a" \0 Z @5 Q( A% d9 S
set j (j + 1)
+ E1 C$ @- ]4 F& ?( n6 X]
$ w0 s4 Z& U4 R+ V( bend
4 y# n; @# s8 q7 I- h: R& G( A4 ^) d+ K
2 N) k2 I4 v' s. B" h
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to get-color
* {% [* w& S& b/ G- F
8 m# ]$ ~7 v |9 s7 wset color blue0 q4 [+ k/ d" f1 ~* h0 U0 z
end. t3 P* ]& j0 f& ^4 V& p
( E. i$ Y0 ]* h. ?
to poll-class6 u" A: r% N) R% v3 P H
end
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to setup-plot1
+ i% T: ~; D# L9 ]7 ]7 a9 O& v: n( g; S( [0 @6 P
set-current-plot "Trends-of-Local-reputation"; H! y4 }4 u+ N' b0 ~* @. g
9 X* j" O; e$ [
set-plot-x-range 0 xmax
! U* _2 J8 K& M& \: |+ m" f
8 F: [3 |: |5 ~( Kset-plot-y-range 0.0 ymax
: @0 u0 o+ g3 j/ ^9 F+ dend
4 o0 p' }* K6 K7 G$ m5 l8 M1 w
8 E# ?$ z' H- Q3 \to setup-plot2
8 `8 @8 `0 T/ y3 E/ T# H
' s2 {: u% O9 j+ Q" j, l) nset-current-plot "Trends-of-global-reputation", I* A/ g" |4 \7 H
2 R, K2 l) X5 P$ ]. [set-plot-x-range 0 xmax
' E; \1 |* ?! h3 x' _, r) a8 @) E3 L+ `* [3 T4 a% z" U) F% q: H( T
set-plot-y-range 0.0 ymax
8 T5 H( P9 v, Z8 yend4 T' G4 X! |9 `# K
$ @" ?; T& D8 d' u8 Eto setup-plot3: n O& y6 b, }3 h; p
8 A5 w6 N9 W2 w* t9 Z8 T8 e; L6 }3 Nset-current-plot "Trends-of-credibility"2 Z l; D4 u% |" `7 a' I
+ p/ I0 H, U6 d) i/ f P
set-plot-x-range 0 xmax
6 C9 J7 [3 \6 B, X* U: W! C; M; n |* w0 S- B6 _; W$ R6 u
set-plot-y-range 0.0 ymax
7 ^5 l t2 Z5 t; vend
! k9 b: N( z0 v) D4 b# o
* t3 N7 Y+ b7 u7 j9 O: wto do-plots
, s1 X7 h6 w5 W% {1 _set-current-plot "Trends-of-Local-reputation"9 l, B$ ^9 g! q+ b
set-current-plot-pen "Honest service"
6 ^: ^0 u: F& o! X4 J5 Lend& p' `) m. t0 j! o, Y
6 Y ^- v2 X% v
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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