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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- d' [3 `0 [$ B
globals[
; i1 P- E2 ?6 @3 o- W$ \xmax
. O9 ^ f, d" M. e8 ] Symax: z3 C+ e1 f+ @" v `% J7 z* h3 @
global-reputation-list
: V: q" Z2 a) X
+ m4 ?2 G) l2 u/ ^" `7 L, Y;;每一个turtle的全局声誉都存在此LIST中% n, h- J* i& b- P" R9 } X9 f
credibility-list
( ]# Y0 S) b- d: m2 Q;;每一个turtle的评价可信度' R& z0 m. H! ^. Z
honest-service
f+ v9 w D5 c; kunhonest-service
4 q+ C# M+ q' ~& Eoscillation
7 s. j6 X9 v: _0 l. c/ trand-dynamic
7 g+ ]5 k$ W: f1 y] J+ B+ t; j: l# S: D" l a
$ ]; W, h5 [' s; h5 `turtles-own[
n7 _1 @& ?2 {# c9 C, w$ wtrade-record-all
) |* ^+ l2 y8 s;;a list of lists,由trade-record-one组成
+ |0 W2 j. U+ w2 D5 qtrade-record-one8 s' P. |4 d: B3 a7 e- a
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录7 u; c6 r" \, U: G% ~8 g2 A
3 c# O( b3 y% m/ u3 p1 Z9 D' _2 ]7 z% r
;;[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]]3 Z* X1 m: \ a
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]% i1 [& F' a% Q1 \3 L s
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; O6 u: ~7 F3 \& R5 l/ R: y
neighbor-total. ]0 C: z! X/ A% J$ q) Q% W
;;记录该turtle的邻居节点的数目
k- w7 u9 j7 E$ s0 } K7 itrade-time6 I/ o+ [. O* b2 {6 e
;;当前发生交易的turtle的交易时间) R. V& G" L x8 K1 A$ Y7 v
appraise-give
. U' Q; N5 o1 N! E+ N;;当前发生交易时给出的评价0 @* b7 N/ A- v
appraise-receive7 e4 z. E |6 Q+ c) m3 c8 ~
;;当前发生交易时收到的评价; N7 Z& u! ?3 l3 `1 i% b8 U$ ~! Q
appraise-time
- C# i R4 K% I! N! A;;当前发生交易时的评价时间
0 m( d8 ?1 l. A1 {' y' F$ f# Rlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 _4 ^+ U; J7 }5 htrade-times-total
& s+ V% ] B! {" c7 h. B;;与当前turtle的交易总次数$ t5 K7 f+ |8 v% j
trade-money-total9 J2 c7 t2 S; V+ ^' t+ `# V# T
;;与当前turtle的交易总金额
# u$ U) u1 F$ F% Vlocal-reputation0 S' j/ I9 U3 [
global-reputation, O( C( P4 i3 ~0 L; P% @
credibility
1 T. _5 p) d9 C F' Z;;评价可信度,每次交易后都需要更新& d1 q& }8 b/ Z3 R$ Q1 q
credibility-all
8 X/ ~6 v$ m" J1 t* T9 [;;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% S Z) f6 H0 i# U9 X
( ~8 D, S7 z! ~) e* F# ]9 d;;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
3 {# N `8 r$ h: Pcredibility-one
2 i' n* n+ o) y, `7 R! T: E4 X6 X;;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' e$ X: }( s; U' Z" w3 E4 Q0 ?, |
global-proportion
8 `, F& Q9 o8 P4 K9 Rcustomer
2 u. G5 @' c+ {, B/ i3 S6 ~( icustomer-no P( X% G& N: W7 Q# J
trust-ok
. G! @! i0 M2 j4 ltrade-record-one-len;;trade-record-one的长度
: ]1 p/ C: s5 u; F3 G& P) M$ s]1 @5 L p q) l: e
) Q1 t; h5 k+ X2 p* F# I8 s
;;setup procedure
, a6 p. R1 G+ |
1 f; `- }+ }3 u$ b# Q9 w$ ~6 ^/ m+ Fto setup
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! L# D0 H3 b2 n! W) K, N7 r+ Zca' W. J i4 b+ z
, p' a6 X# D0 Y0 y m+ V8 Tinitialize-settings
V4 z# a5 Y0 v) M1 L- u/ d7 W
1 ^0 Q5 `; w) W: C5 F1 y* P! Y) ncrt people [setup-turtles]
0 P* M# v0 X$ z/ `0 Q) V
5 V& Z! h* V8 @; qreset-timer" C8 q6 Z$ l: F: U' M
5 E7 e( ]( X ?2 U8 h' dpoll-class1 k0 q* ]% r- u( P
I/ V8 z. O6 f: x5 W: }: [6 I
setup-plots
# E) X6 m, W4 \! h; b
: ~# \6 n5 ^+ {( V' c* zdo-plots
- }+ U8 ]6 d8 O6 x. C# fend& j2 E. \5 G+ _
/ ?" ] K( i4 ^1 mto initialize-settings3 d. B6 {4 ] e4 E
. @) r& G& ?# ^7 K, c [
set global-reputation-list []
" R, g. x& f+ p' K* Q, Y2 N* A1 Q& F. s7 c0 R6 {
set credibility-list n-values people [0.5], H6 b$ [' Q6 {& t
: b. Q& B9 h! _" L/ ]" ~6 x$ }6 [
set honest-service 0
( G6 M1 [/ H$ R; o! l( n/ \& o/ l- }+ I) j: V6 J l) U/ @: }, F
set unhonest-service 0
5 A4 ?7 Y8 s( t, L
' Q. P M' ~) S: ?set oscillation 06 y9 J) P5 B- ]: \+ [
# Z- s( Z9 {8 ^4 N9 j5 M& b
set rand-dynamic 0
3 U7 V6 O8 N& I0 z b7 S) nend m. u5 w: R# Q" E" E, }
- ?! W1 B. ~; c/ A
to setup-turtles
- k; m9 [ A. i8 cset shape "person"# } E" d% h* N
setxy random-xcor random-ycor, _1 `/ I( S0 N3 X8 s
set trade-record-one []
' r5 }1 s3 u% b& s% ?3 X8 r: z' R# s' a \, N7 W( Z6 S n
set trade-record-all n-values people [(list (? + 1) 0 0)]
2 R; F3 W: j1 j0 C- b, T' R" Q' x+ @: q1 }! J! l. V: ?
set trade-record-current []
. X. \" n" a& ^1 u) J) D9 ]set credibility-receive []8 z" [6 y3 v6 m5 c2 W
set local-reputation 0.5
" b2 s e( v) O0 r& \set neighbor-total 0
/ L% P$ Q) B1 ^: c8 e% C* J$ zset trade-times-total 0
. S: C, V) d0 uset trade-money-total 0 a" s2 s# _" \0 g1 O
set customer nobody
; p( b4 `3 V5 V5 a8 W3 e' nset credibility-all n-values people [creat-credibility]
& D; R- U) [; B1 Cset credibility n-values people [-1]6 m* o p( z9 |. P4 N- I
get-color! C+ S' A* Q- v. R
% t+ T& H. F5 J2 V7 `end% |: N+ b5 G- s& ]
' ?! t: j S+ \& f. I1 Y% |to-report creat-credibility
: ?5 S9 k6 _* v5 N. I ] F6 C- vreport n-values people [0.5]
3 J! `# z' x. Nend
9 W1 v8 F2 s. G
( x- Q+ f& t ?% Dto setup-plots
% t. M. V% | C* s
4 W: N j" Y8 I) k- dset xmax 30
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set ymax 1.0
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clear-all-plots
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- W4 n, W# m8 Fsetup-plot19 m5 l# {5 P% X
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setup-plot2
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& { V( l$ j4 x( w* |" _setup-plot3' m: n9 U9 @9 O6 K2 \# F4 A2 O
end
9 c/ B. s, S8 G. P
$ T8 \- \8 D* ];;run time procedures' X. E# }" H! u2 C
; w7 j, L! I. [to go1 |: z, e4 y+ a4 I5 W ]
* t( V% _- w4 y9 X0 n: x- nask turtles [do-business]; ^) h7 L, v% x2 U
end+ J' w! E, [- j3 t0 {2 c. [% B
% K5 m5 y" B" Z" ^. cto do-business
1 C8 t% a: |( ~4 n$ Z$ P* w. }' h' |
0 w- A. ], A. {rt random 360" p: h+ `& ], v/ `
/ z% d3 q5 P/ C) Q, M! A
fd 1
6 C' F, `1 ^' \ t
2 N t/ ^3 w9 ]' bifelse(other turtles-here != nobody)[+ x) W; t+ c) P1 Y9 p' w e
! x, A* k- s0 {5 Y3 k! i
set customer one-of other turtles-here6 X* ]( y3 k" x( i# |1 f" C
" R) ^- q% Y) l [; @; X5 C% Q A
;; set [customer] of customer myself
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$ X; ?- \0 r5 q2 O" N: Z+ u( _set [trade-record-one] of self item (([who] of customer) - 1)
7 Q, E Q ]1 M* Q8 n% N O[trade-record-all]of self# b) s3 m8 g9 J* I8 t4 `$ n
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) V+ D4 r. m; @$ J K
4 ?# t& K" h/ e/ l' m- E3 d7 wset [trade-record-one] of customer item (([who] of self) - 1)8 Z$ E: ^. E* d3 l
[trade-record-all]of customer
0 s Z' T" @# @, Y+ V: s# [" n! E3 ?' z* u, f( X( h
set [trade-record-one-len] of self length [trade-record-one] of self
$ }5 C" @) ?1 Q, g, p& ^! P! w" T0 E9 H, e$ H" u! s' t
set trade-record-current( list (timer) (random money-upper-limit))
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+ J$ p* u/ @: gask self [do-trust]+ q( a8 J5 f4 U Z
;;先求i对j的信任度
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if ([trust-ok] of self)
. O. B3 W& @' g/ b;;根据i对j的信任度来决定是否与j进行交易[3 C" |+ C4 f- d( u8 U
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
+ T' O0 y; i8 j+ n6 `+ V+ Q2 V
& p- o y) b) @; e# ~. [[5 f( f1 z' B& A. v: s
# O; {) Q1 ^# w3 U, w$ N$ S# hdo-trade
1 B7 K( o. z1 ?) Z" h/ ~2 s1 @" \. S% z# b7 J% F) W
update-credibility-ijl
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2 r0 L& g& F# u9 O" Yupdate-credibility-list! i4 S6 _9 ^4 ~( C6 L2 G
2 _6 V# a# I; O) `
/ d2 e$ J- o) M t4 i x/ eupdate-global-reputation-list' A( J4 D- u3 u
5 E4 e0 ?) d8 s/ epoll-class
) F; k3 L& }% X$ U
q6 _9 B; E- J# j% V8 yget-color7 V' c5 c0 D5 Z& K8 w
2 s) B/ T6 `- J* C]]& ~: X4 ~& C" V
/ ?* a6 A3 G6 w- Q/ c
;;如果所得的信任度满足条件,则进行交易8 i- W. O8 n7 J H W7 U4 k/ l
% Y8 {! [% q2 _' v6 p% q. G
[
! d4 Z6 ~2 m- a& T$ e
( S: Z& D4 A6 K& A2 ^/ Grt random 360
5 J+ T% ~$ a# W$ ?
9 O4 u R& H2 k8 cfd 1
' X' l4 X, X' D' y4 t6 i) g/ I2 D% U) i) U/ Q s% I/ k' h
]9 k. C: J; \2 o7 @4 M! T# q0 O6 o
1 F% b% c, t& \* X9 L# Wend/ r7 S1 F& e9 d* G
( \9 {; ^! t- D0 N! {0 z1 wto do-trust
! i! W0 _! h W* lset trust-ok False
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% D7 p5 Y" L: u ]3 V4 }; n9 h
let max-trade-times 0 z) S% l" S7 K0 b/ ^7 w! X/ Q1 c# Z
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]2 I ]$ |. {* r5 Y4 H6 [2 j
let max-trade-money 0/ d8 O+ |8 \' M0 |; M
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
8 \. O C l$ C0 `6 Q2 ?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* H5 e, y, h
2 d5 j7 z6 @* _1 R- [: j$ ]& x6 ~+ x/ P$ I
get-global-proportion
5 p( {8 `8 I, r( y1 L+ ~let trust-value1 _4 b# X3 z9 G* Y
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)( v1 T f) `0 [, \
if(trust-value > trade-trust-value) z& ]8 h3 |% K& I: L9 ?8 a
[set trust-ok true]. b. C H' x" c1 m& A
end: F9 C1 S2 Q8 ^! ?5 ?4 J2 `
: t L* m' Z- ]+ o4 xto get-global-proportion; A; E7 _" ~2 R7 S
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
$ k% [9 _" U6 Q; c[set global-proportion 0]% U9 O3 m+ R# d9 _" F( I3 C
[let i 0' n. \. b+ W& ]$ s
let sum-money 0$ w- e) \: R2 F: p
while[ i < people]3 Y# O5 ~6 D1 e* ]
[
* l Y( T. W# x/ E: f. x/ z- U; bif( length (item i2 n+ U ^0 G7 f7 C9 J p! Z
[trade-record-all] of customer) > 3 )/ j4 t4 H5 D1 A7 ?3 O
[& g6 e6 z* ]' E$ [8 Y9 o0 G
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
; S/ k' K4 @8 p h" c]
$ R" f& j% j! |: n) Q]
% @/ c1 ~2 [/ i$ o" e- @% z" Clet j 0# s7 w/ A. S; v0 m, J, z
let note 0
3 w# S) k# X) q+ X+ N; `while[ j < people]
9 E; i6 w+ f' z" V4 f! d[' d6 v* ?# d. V; }# J. {% p
if( length (item i; _* V+ c! S4 o! M3 m+ u; t
[trade-record-all] of customer) > 3 ); K+ y$ T. ]' f4 ?( b: r
[) s2 Q+ D6 I# {& e) I( w6 k. _
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
$ ~8 {" E) p7 A% T9 P[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]: N' C) p3 c$ \" Y& ]- M1 ~
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]) M& M9 ~" V/ _8 y0 z
]& f2 x- d' U- E! f% i2 j
]/ A3 U$ K% z- J
set global-proportion note
* \* z2 F+ j, T+ g5 t+ l]4 X0 h% D1 p5 P% Y h3 j2 m
end
0 j8 i0 l1 B. _9 Q7 h2 ]3 X, H) z* o- A. ?, h4 t$ C9 L7 Z2 o0 x0 n
to do-trade! [9 z3 y0 S2 F8 b; }( H5 o) a
;;这个过程实际上是给双方作出评价的过程
+ C* O' G* w$ v. L: V7 A" Aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价3 u% P( e- [1 L1 N7 B, C
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价/ I& n# W) Z5 r$ h' Z! }4 T6 m2 Z4 w
set trade-record-current lput(timer) trade-record-current3 T# e v) X; {3 Z
;;评价时间8 i9 w' r' C+ g) S2 f1 G9 ~- Z
ask myself [2 |! r. B$ N: h( M/ } a8 C% u8 {
update-local-reputation, @! y4 u9 ^' z: W3 ^2 M
set trade-record-current lput([local-reputation] of myself) trade-record-current! f5 V# j6 `/ V8 X! U* e! m
]/ @& L& |, g( P5 e. C$ R: @/ W
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself5 S/ K9 K. q6 D" A
;;将此次交易的记录加入到trade-record-one中$ ^( D' A9 Q. K, s* ]/ d$ @
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
+ a+ t% f) M, X( K; Olet note (item 2 trade-record-current )
4 W* T9 x g6 Kset trade-record-current
5 z0 T$ q S# H! `) v% {' Y M(replace-item 2 trade-record-current (item 3 trade-record-current))0 b. V8 k( z( L3 g
set trade-record-current6 u7 U9 C1 R/ C% |8 d
(replace-item 3 trade-record-current note)& T @0 h M+ ~" n2 e
2 N* r; f& K. k5 Q3 O! y) r+ [7 C9 Q4 V
l/ l* n2 w0 }2 ]
ask customer [
9 ~/ R' |( S6 U. c4 G! Iupdate-local-reputation# L* P& A/ `3 d1 u \% x9 m+ t% S' R
set trade-record-current
# I7 `5 O3 ~2 c6 @(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
, T: R: ]8 ~' x$ G( v1 W; g6 E]$ \( l; H Y& |6 h% t5 L r
' O( N4 r7 [, [8 M }8 |1 T7 G) N N2 F3 c
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
/ x# ~" h) o% a- `! _' O% m/ k6 f0 s' N/ ~; N% X
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))# f( A2 j: {: E3 s) y5 \
;;将此次交易的记录加入到customer的trade-record-all中
- x g& j7 [ G: W$ b+ pend6 n6 v. L* Q' T3 l, F9 ?
4 u" d, `: H+ S/ G8 z! h8 {7 X
to update-local-reputation! l% y) n& B1 Z2 b
set [trade-record-one-len] of myself length [trade-record-one] of myself
# C+ N2 V# k' V9 u6 k/ A' M
2 O* H- y9 h2 x1 K/ T' L; B' F/ d, G9 d2 r& C
;;if [trade-record-one-len] of myself > 3 & { F2 s/ ~7 ~0 {
update-neighbor-total5 }: F4 J, G% g
;;更新邻居节点的数目,在此进行0 l) R% x& F% t$ h3 i0 r
let i 3" `( I" o) J3 ]
let sum-time 0
( X# |0 N6 o W/ P' Z8 x4 C0 Owhile[i < [trade-record-one-len] of myself]/ p: Z: S0 o0 D3 a& B9 s, ]) l) J$ P
[
$ |, P( ]0 K3 O$ F. mset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
, E7 q& ~1 n! [* F. ]+ D8 Nset i
& {; F, {. S" X# z9 R- b) ]( p* U( i + 1)
# n4 t- H3 a3 g) z' I, n M G]
& T& E( y+ E, \let j 3
F) V( Q$ t3 `, H3 Y* Qlet sum-money 0
* g7 P* ~. i; x: |while[j < [trade-record-one-len] of myself]
8 g+ }- j1 ]: `+ l% D. G8 d7 ][2 C' a$ @7 n/ P- U$ m2 P, A" A
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)
8 d* N/ m8 H3 G+ T+ P0 Lset j
5 y+ ~7 H: ~8 z5 A: K( j + 1)
$ n8 Z- N1 A4 Z! y! f* k]
- V2 C V3 L L1 {, Vlet k 33 u* I! m' R" `
let power 0
2 |" Y" [3 o* C8 D E5 W8 ]9 @let local 0, t3 O# Y+ m' q X! Z
while [k <[trade-record-one-len] of myself]) T3 ]7 {6 i+ k$ @5 M
[
* Z% x1 U H! A$ N! q# d) Xset 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) ) |7 V8 @# R( K5 s
set k (k + 1)
; H: p1 k2 `; X. ?9 U0 s( c2 G]! ~$ E9 w* c+ v
set [local-reputation] of myself (local)
& E7 U7 d- u5 U/ \" hend* W# r6 H* c; Q( F5 N
5 D0 ~4 ^/ Q z% }, n; Ato update-neighbor-total
. ^! P. q% Z$ x( {
; \- x* S6 y" }$ u2 \4 u( \0 fif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
& L9 N: L9 _, R4 j. n- X8 z& R. K6 g" h0 y! w! i
/ V; _ \/ `4 U: p7 f5 oend, u* D) o- M8 C1 `3 [9 @
% \0 S9 m) s& }3 s% h3 nto update-credibility-ijl * ]) L8 O8 P3 R
" y) U: S+ t5 w% Z
;;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。# b% K) l- x; y& s9 a$ ]$ F
let l 0: L1 j( `% O1 Q8 I
while[ l < people ]
, j: `9 Q( q8 W2 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
, `- ]$ N+ f3 a" S: w& B[) y4 K. [9 S) h5 K- }" {% ]: L, L& p" Y
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)3 p& B T1 Q: @$ ~. U
if (trade-record-one-j-l-len > 3)
. y+ O: F5 E0 F* D1 e! F3 m1 t6 H; l[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-one6 i) ~7 O7 e: q7 [; t1 |* K
let i 32 ~( }* R2 f T" C- O/ x. {
let sum-time 0( W9 g8 X! i! d f4 w- o
while[i < trade-record-one-len]
+ G. i2 j1 d. [, p[
* \9 A3 n( ?# t g7 t5 i' ~5 s0 cset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ); N) d0 r, M$ e/ _0 P
set i
* D% P! s& n4 q+ D& Q4 L& f( i + 1)# q9 Y6 \1 {" a! C u% `
]8 @; t' J: \! q G: k* O
let credibility-i-j-l 0& |9 a/ o' k2 Z0 i4 V/ @
;;i评价(j对jl的评价)9 J+ F" X# g7 {8 D6 l
let j 3
; N3 z! F& V' `' F7 Y& alet k 4% I0 R7 a7 I' P: d7 M4 m
while[j < trade-record-one-len]
% s( T4 ^0 _. P9 h9 Z& H* S4 M[+ z& D! |% w1 b' E
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( Z* a9 Y" f# H( 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)- D0 d: p/ u2 d7 R E
set j* N6 g& I+ d. y
( j + 1)
* U4 `& Z! m% I; g% [* y]
' Q1 G* l" l$ _2 D2 s3 Z2 d7 `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 ))6 M' a+ G- [4 Q! @) }4 u
" K0 i. d) F3 m8 J4 b0 A& S
5 f; r& F7 I/ K Mlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
. S6 v! a; p& E4 G+ n;;及时更新i对l的评价质量的评价' ]7 \9 @ F$ j7 t- K/ W
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
0 H7 H. w, H/ J3 cset l (l + 1)) i, T, X" E7 A) I4 {' _
]* c. P+ I$ l( m5 Y% L" L
end
; G% p5 C u7 T! `6 B# W1 b" `( u8 @( S! _" Q
to update-credibility-list
% h6 }' J- `: Mlet i 0
: M8 I% y) a p: P7 K$ q9 r( J! S! ]' Kwhile[i < people]" n( y) _3 P3 b/ z+ Y
[ U* T# M1 P& b1 `$ ?
let j 0
/ E8 c9 N8 {/ ~% M: b2 C4 R/ blet note 0. `1 c% n6 l1 a7 u" u# y8 o
let k 0
; j( l, e. S, a;;计作出过评价的邻居节点的数目
- F* G, k+ `; fwhile[j < people]" w3 f! g3 ]' W$ S0 o: B* a/ z
[7 _0 u" v* X: e* f
if (item j( [credibility] of turtle (i + 1)) != -1)
# K: u8 y' t) V( M- W2 M- d S;;判断是否给本turtle的评价质量做出过评价的节点+ Y6 F& Z# Q0 h: x* q+ q
[set note (note + item j ([credibility]of turtle (i + 1)))! X9 S% e6 x. j( Y4 n
;;*(exp (-(people - 2)))/(people - 2))]" W _5 t8 E$ F2 t m
set k (k + 1)
# O) [$ @0 ?4 F; a- p. s) G]
; z" v, q9 z! w/ Iset j (j + 1)
9 c) Y6 [6 d* h]6 p# e% b2 k6 ~- X; C) Q& p, i
set note (note *(exp (- (1 / k)))/ k)
/ {& W, y. m7 p0 ^# o, Bset credibility-list (replace-item i credibility-list note)
- t: @# {7 c8 @+ j% ?9 Oset i (i + 1)
) r% r2 ?( [! r1 n& d; I) G]
( i% n! @: }% U K+ tend4 {) R" L7 @4 O* u6 T
* {& `) X9 o: X! _: k3 I$ H
to update-global-reputation-list% f1 ?1 P& k* B
let j 0
- f" V. T) P; x7 t9 T! ~while[j < people]
* p, \$ G3 s) ~[2 n* J2 Q* m# I7 ^
let new 0$ W1 j, _/ |6 n6 I5 O- B
;;暂存新的一个全局声誉
) R% Q/ L& H4 _1 J, o" N j5 ~+ n0 Mlet i 0
1 ~7 ?, g7 L( F+ e) G6 }let sum-money 0
. {. v* x: K' L- P7 d5 c0 Ilet credibility-money 0
7 n; a' C, A. A- v, f- A. Ewhile [i < people]) l; v N) V: s5 ^: j* |' ~
[
- A5 m, Y3 X5 p2 r9 H8 W5 O8 A5 Uset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))) R M, @* k4 h7 X% ]- S( t
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))+ H* g7 I0 M- h7 Y
set i (i + 1)
. d0 u) g# R0 [# f1 \) P) e! L]) H$ A: c' A8 \5 V& l( A: c' P7 T
let k 0
, F- R! b$ @8 F0 S# i" i0 Y4 Tlet new1 0" A$ W9 O3 }: t" _8 X) _$ @
while [k < people], o2 x1 f2 b3 K; @' i, e
[3 D8 W0 a7 D& t1 C" Y" u) ?( B
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 Q8 k2 t+ h, e" Qset k (k + 1)
3 j4 ]9 [* s7 O0 _]: S+ R& Q3 p1 s- a' r5 t* A
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
8 u5 ?/ x3 r+ J& n) Q7 Aset global-reputation-list (replace-item j global-reputation-list new)
! V# Y( q X8 t+ Iset j (j + 1)2 ^' ~% B% m9 J B7 P) B+ W
]
0 ?" P8 u$ y7 }' M) K4 }# lend7 `( F) O9 N8 Y' @
: e) e( P, d9 {) a9 {: I& ~
6 a+ R4 c/ f }5 T1 _5 e1 h! M8 U" L. S' |/ {
to get-color, Q6 C5 y/ R' R: C- j( p
. l L/ V+ q% P+ n8 E8 z! Nset color blue- A0 b7 `) E6 \( {, A/ r
end" ?, T4 V }3 v' {8 x% U5 t
+ v! w" Q" _, y( M/ g
to poll-class
# N% b, X. v/ send! k+ ?0 H! H- j0 {" R
4 {% g: [' f6 Z- C4 _2 Y- c* wto setup-plot1
4 k% o; i" l/ V7 N) b' f1 I7 o, ?4 W0 l9 L, y
set-current-plot "Trends-of-Local-reputation"
' x0 L- A5 e4 Y
) w9 u; M& E* l& P/ b- `set-plot-x-range 0 xmax+ \; \# p) X3 y9 M V
4 B, o# M) x6 a( v4 Uset-plot-y-range 0.0 ymax
) z3 u- U1 ~! }+ ]" ~$ Cend
3 p6 H C8 M5 F1 B* v
. c1 l/ \- P. eto setup-plot2
4 |! I6 i7 l% Y0 z
( ^9 @* P1 x& h" j' f' yset-current-plot "Trends-of-global-reputation"
8 k; l8 e4 W4 V
9 R. E. b3 d# v5 K1 T2 U5 j/ Kset-plot-x-range 0 xmax
4 }/ P! z9 c& s3 i: V2 {% n; i- k7 \7 n2 |; {
set-plot-y-range 0.0 ymax" R3 S! ^ x0 c1 z# h1 [- {& }3 M
end
! U/ }7 @3 ^0 B. c7 j3 R" |8 t: E
; @; l Z( m% z& Z+ \: I+ L+ m: p$ ito setup-plot3
4 N+ p0 B' y2 z5 `; p8 u
0 z( t2 P# ]& e* T5 o3 _set-current-plot "Trends-of-credibility"' t0 W! E$ f( W1 m( o- u/ N+ }& x) i
, h+ {. \+ R+ W1 [% q) ?
set-plot-x-range 0 xmax% Q4 A% v7 b# e. b
7 e& ^$ K$ n, K! f( v
set-plot-y-range 0.0 ymax
) x# b6 j0 ]+ Xend
7 E7 [2 b9 ~0 f, h$ x
2 G; i( h3 d3 O9 ^3 Uto do-plots
# K3 |, j( q0 ?; F7 m Y- g; r. y2 vset-current-plot "Trends-of-Local-reputation"# L% [2 F5 u+ l9 W9 z! w; `5 Z: ], z
set-current-plot-pen "Honest service"
: e: d: n4 {7 u4 ?) a, r" w4 Rend
k/ ^9 ~9 ?5 {: S# b- E0 o; ]2 ]$ [$ y3 |
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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