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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; T! Y$ [! m. J. E8 |/ iglobals[
. X7 m+ n0 a2 A( @8 }2 t4 N- O; ]9 @xmax
" Z1 W4 O! y6 T' J/ @# K2 N" W/ w# F/ Pymax0 L3 P0 H6 J. d J1 ?
global-reputation-list! S& p6 d( J: _# e
) `3 ] f1 m) A5 k2 P s8 {4 ~
;;每一个turtle的全局声誉都存在此LIST中
1 }' N/ V1 Q' h4 B8 B4 [0 s3 |credibility-list
6 ^+ N2 |. z7 ];;每一个turtle的评价可信度- J# d# b) q1 V3 l/ h3 {. z5 T
honest-service
) I3 h# X9 N/ t+ U; }unhonest-service# b) P" t) R9 Q* D. t
oscillation
# M1 C; J8 T- R: M7 [rand-dynamic
. m4 T H6 m! D: f8 u$ |- R]" t5 K8 Y c' @/ X5 R0 ^3 q4 y! Q
! V) D8 Z, C- z+ q% |! `! Rturtles-own[
$ g$ v# X4 l$ i3 F4 [' Otrade-record-all
, c2 | K1 E8 M( Z1 h" ];;a list of lists,由trade-record-one组成" g% k; h9 E4 U6 l( Z; {+ ]
trade-record-one; X. y( l) G, w" @8 O+ M- I/ ~3 t
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
; m5 }1 g, u/ Z3 ?
6 k- }/ V: l. x;;[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+ h2 m! F" ]# P1 j8 {& k1 q- Ttrade-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]
! t, T0 D% R5 O" ycredibility-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
4 T" m; s' K" }neighbor-total
8 j6 E; T0 S4 u5 a: R;;记录该turtle的邻居节点的数目
* W8 E- `( G! W) b4 ztrade-time- q: \6 g5 u' M+ P; i( { w0 h X4 _) z
;;当前发生交易的turtle的交易时间
9 D+ h. `) r& V% q y; a; lappraise-give. y$ `. j9 J7 F- v
;;当前发生交易时给出的评价* S0 H/ X% [" Z' q. S2 ]
appraise-receive
1 l) o( }# X: f: G& a;;当前发生交易时收到的评价+ [/ n( c- h+ d9 ]& T$ D
appraise-time
X" r9 ?# Z0 W( Y/ J7 V;;当前发生交易时的评价时间
' K, A1 z; P3 h1 dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
4 u# T) E6 u: K! Jtrade-times-total8 ~9 o5 D' e& p4 l2 l* ^2 z
;;与当前turtle的交易总次数5 Y2 B7 L* B* `
trade-money-total
7 P3 D s5 E" V. S1 |' k8 @;;与当前turtle的交易总金额; N* h2 s5 \# [2 [; N
local-reputation4 s: v4 T2 S9 X3 M
global-reputation1 K' m2 n* ?2 ?0 ~
credibility+ o% G: f+ e- P
;;评价可信度,每次交易后都需要更新$ ?: W3 T1 `, M* j, W
credibility-all
4 w p( {* p9 n& |/ a# 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! E4 p3 ?, h- F6 b) @& m! [/ C6 n
8 T& v; ?/ x. P;;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0.56 T# |. X7 Y: ^% V7 U7 `
credibility-one& c. ]& I8 I- r7 p/ 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
! n" D) S: j7 b/ U: s$ Cglobal-proportion
+ x2 e" e/ G+ B# Jcustomer
6 o1 W# \- O) u: Acustomer-no
/ I; z0 g: ~3 s+ T l! ktrust-ok
1 w8 z: g" r+ utrade-record-one-len;;trade-record-one的长度
* s; _0 C" g/ K8 a]5 f t- V/ z6 x5 e% C D. I* {
' a- w+ S" r' B' n) j- N; d: J;;setup procedure
/ B: G, Z0 }+ Q2 r3 v a7 J3 r1 `+ v5 y7 j1 }
to setup
# @+ ` G R6 L% E/ b( m, q
1 V7 V! K$ W. tca
. ~* n) {' i9 C* c3 ^) Q2 p3 q/ K F: B& c; x A
initialize-settings
. W! P+ n" m4 z2 J, q9 d
; o( [, d; R- ecrt people [setup-turtles]
8 Z$ L' D% Z; S/ a5 g: F6 M+ \
% S6 H; _# g, ^4 P3 a/ [# G9 vreset-timer
+ j7 I3 R6 U. C' c1 j7 g7 c* p8 K4 c* d! i# C7 p; r! @
poll-class/ f6 ~ y4 F. |4 h" e% m# V% \) w
. m; @4 Q+ T: A$ `1 q
setup-plots
8 R: C' A6 j# [. ?* M* o6 q( K9 b" v+ k) W) |
do-plots
' _' l$ ~/ j, |$ |) C* yend$ R. E2 ~2 p- ] m O1 C
+ R( z1 k% P" n- G+ c' J
to initialize-settings$ g5 ^$ e5 \+ q6 y2 B" F1 L0 M! n
( O" }( r8 Z! p6 U/ G# |set global-reputation-list []4 }/ n; m7 u5 p4 F. z% E% Z
7 P S; p4 y- l( u% q3 Xset credibility-list n-values people [0.5]
3 j# n+ M, Y/ K) q( `
' @% e4 y$ v7 J; j, Y- |$ aset honest-service 0) D+ m+ p5 w( c+ d* X8 {
5 B) x' s+ ]( w1 M, x- z& R
set unhonest-service 0
, I$ A2 A0 P; _) [8 K1 i4 ]7 E. e7 b
set oscillation 0
* w% t* v$ A2 e+ a" P: K. ]
4 x; ^0 [6 t& k+ T, D, m/ Tset rand-dynamic 01 q' D( e6 X7 Q+ X+ b; d
end0 T, P* C* X1 Y: ^1 h5 O
; u. e3 r$ T$ _0 Pto setup-turtles 6 U) ?2 E7 E/ d, A
set shape "person"& F$ p A1 i y; ]" G& x
setxy random-xcor random-ycor
3 p0 @( d# B L# V/ hset trade-record-one []7 W) n/ N, h9 x0 J9 s
2 C' d4 e; a# K+ t
set trade-record-all n-values people [(list (? + 1) 0 0)] 6 b$ z7 @. R3 T5 F. V. C4 }
. q1 x) G4 z9 t8 ^7 iset trade-record-current []3 z5 J L! w ]6 K4 ~4 f
set credibility-receive []# C$ @. l/ k$ Z; P7 A8 v
set local-reputation 0.5
9 Y, l3 ], O# S) D* s9 I* Nset neighbor-total 0* j. D9 n' V! Q I. n. X' ?- e5 G
set trade-times-total 0& D" V" f/ t: B
set trade-money-total 0
5 F7 h) A, X' h: C* Qset customer nobody
& h3 }- D5 I$ |$ y; Z8 [, jset credibility-all n-values people [creat-credibility]2 D, m& Z1 ~3 [9 d
set credibility n-values people [-1]+ l1 S* X/ M1 e, [
get-color" u7 K- O4 g* F. }- z
, ?9 J, @+ |6 S
end- t6 k9 ], ]$ \. X5 I
7 e" @: J6 O, x1 G }4 _to-report creat-credibility
3 l5 G! |: h9 z; mreport n-values people [0.5]
- _) m5 y) X4 E8 z$ oend2 k8 |# a$ |+ M! N9 s/ v, ? `
8 q8 f. A' v! V5 s1 d' E7 Cto setup-plots
& W& d" y$ m9 L/ m/ S" N+ Z9 s* q% a7 V$ M/ l* w5 t; m% ?
set xmax 30
( U# b$ A2 l# k3 M# S9 u% J4 O8 c( J7 Z$ V
set ymax 1.0
" p- s1 u# U' c( B, \& j$ q
6 d) H1 b$ X9 |clear-all-plots& Y/ w2 G2 Z( [- g( V, X1 B" L
8 x4 t7 r7 c; A! c
setup-plot1; A) K/ o/ h+ z
! j3 D/ t: t$ i3 q: N' y" j
setup-plot2
. M# A7 F; [9 k1 u' g
# \2 f% q i; Wsetup-plot3
0 r+ `( q2 u5 m3 Q. X; {8 Q: Iend" t- x: P7 H* \6 }, y2 _+ m6 T
; W( @7 F: O) f/ l- z; s
;;run time procedures
( e: R+ u- \1 D) k/ d" G
. T \) z1 }6 o7 t7 l5 B2 g6 b4 f0 jto go
T- r3 b+ o% N! ^
6 T+ h, q; G% ?' o! t! K. Fask turtles [do-business]7 g% t: W8 u6 N; U. o% T1 A5 c. H
end$ q: W1 o+ ?, @2 c b
1 F- V E+ f3 r' ?; `6 Ito do-business 0 l" Q# O0 y9 E. W7 z
0 C0 B+ W# K |+ c) j$ ^/ ~- R0 @) c( \/ S0 ^! Y; L" w
rt random 360
* K' G. o) f7 c2 [: ?# d7 x/ N' ^* N* @2 `; z
fd 1
, g2 A: r1 L3 |/ B( \+ `+ p
, L5 z T: l- a- r1 {, Kifelse(other turtles-here != nobody)[
1 f! G, P3 N; ]! O) R* t7 ?- D) x* X1 W9 @1 K, P6 G: w
set customer one-of other turtles-here0 u, v; u) @) _: f! r
" [. ^5 w& ]2 L0 ~ S- [8 C0 s, w- H;; set [customer] of customer myself
2 b5 m0 S4 h+ ]6 _
+ J! o$ O1 ~+ K3 g) S. rset [trade-record-one] of self item (([who] of customer) - 1): K; g* V4 ]+ j
[trade-record-all]of self
0 k& h& u, j6 v/ E0 Y;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self% E$ q! P2 `; ~! R, e; T) E
( a5 m: Y+ m3 J4 @- m, Uset [trade-record-one] of customer item (([who] of self) - 1); O; d J& c( r# u7 c
[trade-record-all]of customer2 Y( w A/ h+ m H. F t
1 X! F" h$ @# G1 w( Kset [trade-record-one-len] of self length [trade-record-one] of self
! v2 H8 ` t- n/ V! M9 T1 b0 R7 S) T$ q- f5 l6 x: n+ k& @
set trade-record-current( list (timer) (random money-upper-limit))" B: s) c6 O1 G! ]
6 Q' j( r, K* c" \6 i4 Bask self [do-trust]
6 d2 q7 F# j7 d6 C ~0 I g) N;;先求i对j的信任度. j. _; r. g/ i# W& u% ^
8 z4 m& `9 f% aif ([trust-ok] of self)
( A7 z j) L8 M! A5 g' N;;根据i对j的信任度来决定是否与j进行交易[$ i6 |/ Z/ e, u6 a$ p& \4 T! K, j
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself' t0 M% C2 H, z8 a: p
! n- }4 Q% T+ z7 Z# L[
, o# ^3 R+ D8 F- b. R
- p4 Y' b# b3 j# h" D2 ~5 wdo-trade ?4 l$ U+ i4 K4 o( i8 g
8 p# C3 x7 i4 x) z
update-credibility-ijl% y- I- r+ U# Y6 j/ S Q; k' U
+ b6 g% a6 P5 T' P* G0 j& Supdate-credibility-list
0 V: ?- z5 x$ I! B8 k* ~6 t. G: _
2 @2 E8 [2 ?: {
update-global-reputation-list; U3 F1 l! ^% w: ^5 b: e% Z+ {
, ^- d4 ?! f3 V4 Y% ^) b# Epoll-class( { E. y3 }/ O- W4 S7 @
+ U# F, @0 H; {+ J4 Q& ^
get-color
" }& p! `2 ?: ~
d4 l/ \8 t* D& C]]
- H; F8 B$ I1 Z6 g" z' j! Q5 k! P: i9 I5 F. t
;;如果所得的信任度满足条件,则进行交易
( P9 q5 W6 Z" e* l9 m+ T& x V% L, H8 n8 s, k/ J. p( t
[7 j; a' D" b/ v
, X; C& ~+ F6 l# ~" `2 O% ?
rt random 360
' F6 w$ I6 w. k& W$ O) O
+ m) D& @8 ?; E2 O! Q3 ifd 1
# G* j6 w- e2 f! K$ Y2 y9 u0 B' z4 j9 i
]9 m4 u" ~9 j( @% w0 f
% ^8 F1 c* l5 L/ c$ ?
end5 v6 T; a8 ~: m" H
8 Y9 H2 \3 G3 W( d8 wto do-trust 3 A! W8 |' _; C2 i8 ~
set trust-ok False
! C4 C1 P7 i0 k: I" R( `. M% \" h7 ~& }
6 M8 Y; w& F8 D3 I- }- slet max-trade-times 0& N% U6 B4 l0 n' Z! p; p& ~
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
& I2 @$ L s% C% glet max-trade-money 0
: @- B% h! J0 g& W( Iforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 V, y* Q) z1 O- W: c1 l- |- Flet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
' U9 b0 K4 B; P7 K) O- ~, |: G$ Z7 {9 D9 f
4 R R; Z9 V/ ?9 s/ E
get-global-proportion1 x/ V! B5 q& K3 h
let trust-value: S. \. S" S3 S
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)
/ X( e1 E. t: M/ W1 [7 mif(trust-value > trade-trust-value)" n# [. ^: n. n( ^
[set trust-ok true]
$ A2 A; s( _2 aend
/ w' A2 t3 M8 X1 h0 C) j* l2 l
4 c* x9 O- ~6 C5 [# Mto get-global-proportion
$ ]( O4 _1 S; l4 F& M2 X! T3 ^7 B" Jifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)" `9 U& z$ G2 V( t5 v, |* X
[set global-proportion 0]1 T: S y. w# ]: c" E
[let i 0
i4 W; O4 `, [3 ~" L1 C7 Dlet sum-money 0
# z3 y; n9 X$ ewhile[ i < people]
% c# b- ^/ G5 ?) L' O, l- s[
. ~0 I0 W1 g% o( m6 E; _. _if( length (item i I+ ?* \- s) f, |& z
[trade-record-all] of customer) > 3 )- u, v& N: a5 @) R3 Z5 V
[
' Y% u& m" u+ \set sum-money (sum-money + item 2(item i [trade-record-all] of myself))) Z e! C% t# R- f
]" N6 K$ i3 V" d% X9 f
] a. I1 I% k6 W9 @5 ?+ i5 q
let j 0
4 `1 \, C1 n: {- n3 I8 xlet note 0
- c' F; B# l; jwhile[ j < people]
/ E' f% X$ S8 {: _0 D( x[& o5 \2 |+ ?4 }2 c8 n
if( length (item i( w* X3 _6 W" P- h3 b) W" P
[trade-record-all] of customer) > 3 )
% I" [1 U( y! s; w( x0 _" C[ Y6 _7 W: O5 i* {8 N+ n
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
$ y6 b4 Y8 a: @6 |& V; c3 M+ A[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ i0 D8 ]) q! j% r8 h[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
" L/ f3 @6 c3 w: N0 l; M]8 B/ ?5 p9 B% g/ I8 K
]6 T) T$ C h4 D5 k$ A
set global-proportion note2 L: F7 E( @" o9 C3 R
]
9 j2 D9 d9 O: |. qend; @ i" u5 T9 g- n( v) V! {1 x+ w' T
3 c& U7 Q5 z$ N) V8 A% g% a% g
to do-trade( F6 G l) f$ Q7 a9 Y! E1 r- K
;;这个过程实际上是给双方作出评价的过程
6 P1 p3 n, C- ?; T5 ^set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价& m2 {% R8 D1 O# K# x% j4 U' |
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价) C4 y5 H/ t ]5 J2 f' c3 G
set trade-record-current lput(timer) trade-record-current
* |2 A+ y9 e$ A% W4 u" a! A;;评价时间
& t# \$ O2 u/ g* V& p# yask myself [( ~7 a' ~' @! C6 H
update-local-reputation2 j) }7 x- W( K% C) j1 V
set trade-record-current lput([local-reputation] of myself) trade-record-current" ~5 Q J& z! I$ n& T
]6 s4 z6 ~/ p |' V% \
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' k: X) v; V, Z1 A/ r
;;将此次交易的记录加入到trade-record-one中
: z; \ f- R; {4 B+ }& U( Wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
9 B1 c o/ m, }( s# Vlet note (item 2 trade-record-current )+ s& [ l7 {1 k) H4 Q
set trade-record-current
, Z6 \0 O4 `: N+ T- E5 k+ M(replace-item 2 trade-record-current (item 3 trade-record-current))( _. m: p. z S5 e
set trade-record-current
% Y/ Z& l8 x6 Z% N( x(replace-item 3 trade-record-current note)# I* c0 P5 X& ?# U g
% f. R e$ e2 D$ P9 e
! P9 D, G' W+ R) R% |" u
ask customer [
2 }( p& ^% m+ R. [2 _& G+ ]update-local-reputation
' ?* j) R W- Nset trade-record-current8 p3 p1 b- Z& N4 K9 j
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
7 S& z9 L! q3 R+ ~& t( N], r/ O. \6 }* n8 y% w
3 F. s4 w0 M. s) }( ^* P
: W: [9 A! g8 Z, o5 nset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
. v" n5 S9 y8 D9 `' I
: @, f: ]& M: R3 Q; c/ W* O& K1 {9 Uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
/ G; H. I S L p2 D) \# D;;将此次交易的记录加入到customer的trade-record-all中
7 P7 W( {# A+ N5 P+ ]8 K* ]end# N: n7 M# k# O! x' n; ?
# Q `3 A; r9 R2 |5 |8 {to update-local-reputation
4 A& s3 `1 V$ P/ }) lset [trade-record-one-len] of myself length [trade-record-one] of myself
8 [$ `2 P! H. X6 O E% g* \
! {! @% |& }6 Y3 y# g
A, {8 X( B0 \ [;;if [trade-record-one-len] of myself > 3
/ d6 ~- |) z' T( Z$ R5 O+ vupdate-neighbor-total | ]: s: o. a8 G$ ^9 b
;;更新邻居节点的数目,在此进行* _; [9 @4 k" E$ h) }
let i 3( p. K5 v ^$ N. |
let sum-time 0) z( S- F3 N s6 T) m, U. N B
while[i < [trade-record-one-len] of myself]0 ?( _. \8 v0 ~/ `* Q, V7 w
[
& T. Q9 C& O3 B6 z6 x% lset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' M/ S7 w& K- d0 c; o, j. t
set i
: z8 \* N' x0 W9 [( i + 1)# ^7 p5 C% I$ m% [# H( L
]1 l8 `" U; P9 g q! R
let j 3; K* x: w. X/ z; f- C3 u' ^6 `; B7 z
let sum-money 09 E4 h, s; t# ]% x
while[j < [trade-record-one-len] of myself]
9 x5 _ b0 D% t+ e' f7 V: t5 @[, |& G3 E: o: K; x" y3 t
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)
' ?3 f5 u4 Z4 t; k( C2 rset j* `* E; x, f" n9 m( `" e6 }, K5 ^
( j + 1)1 q) j' P# Q* g5 Y! E, U
]: b$ K9 V- Q/ v0 ~8 Q8 e
let k 3 g3 x* F+ q6 p$ V0 p9 ]8 K& s
let power 0
) Q4 h1 B; C: t4 q' Dlet local 0
* g* v- d4 l! i% y' d" A& Awhile [k <[trade-record-one-len] of myself]
5 U- L' N9 A: H: ][2 S/ @1 v1 w' _" E1 e1 r
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) / [+ T f: F( M |
set k (k + 1)
) M7 u+ k( J+ e7 |]6 F/ R1 r- q& T
set [local-reputation] of myself (local)
% A- h5 o, w1 U, U# Gend% n% J/ i7 R4 w0 ?3 |& s
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to update-neighbor-total
$ y# J1 O) _! J$ F6 o; @+ d ^! X9 k9 v2 k' G( c0 v
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]/ @; a% J6 G) `4 N" ]% i
. h+ x" I# r1 E) h/ E: ~: a" O& k$ b, |/ I6 g
end
3 i" V+ X4 K+ h
0 U+ \7 M# y% t$ v; l( F6 ]to update-credibility-ijl
% \- W; L$ N b, k* z5 Z5 w
4 m+ W2 q$ i, M. ?0 ?% }! a;;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。
, x2 I5 {" X% X, m- x% ulet l 09 a7 ]0 z/ ~7 y9 h/ i# U4 [1 M4 n
while[ l < people ]) t5 h4 F0 b( {" Y) D% k' 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
3 b2 c5 _" ?# m7 j, ^5 p[
* R" P. J9 c- \, v& rlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)/ S9 V& D0 G' C( h/ A: ]
if (trade-record-one-j-l-len > 3)8 ^. ` S! Q' d9 S; J$ t7 N& m. E
[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- V3 a* f/ C! [! m6 O# g0 J& v2 @. }
let i 3
5 Y V7 l& K. v6 h& I. u; V3 Hlet sum-time 0
$ G/ p- K0 E* t! J6 y y/ Fwhile[i < trade-record-one-len]; X8 z7 _1 V2 _3 ?: t: z& s
[
. k7 b2 r0 m5 dset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 j" }# [- B) I3 m
set i
4 E! x# g, o R( U9 ]; v8 F( i + 1)2 v) I& [) r# L% [( q7 J: {
]
, n/ |) Y* Z+ Q4 llet credibility-i-j-l 0
1 j# C: t* ^# Q+ ^# e* M5 q;;i评价(j对jl的评价)4 g/ o6 o' y5 f9 Q6 T
let j 3
! k% u" F* j0 C- S. ^ Nlet k 49 b$ ~. Q4 `. P) y+ } R. Q/ e3 f! v
while[j < trade-record-one-len]
: ~7 q' n4 U0 L$ e6 p; A; N! T0 o[
, ]7 V$ [6 {7 z& [% ]8 Q5 `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 ]) C% j9 X2 A% \
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)
' \6 {% r; f" r# Y/ U( u0 wset j
' f$ C: o/ s+ w1 O% l! A2 C( j + 1)% Q3 a# o( E6 n$ F/ z& i% c
]) r2 l: d% S( L
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 ))
3 V0 Z- e8 Z9 l2 h- t f/ w" v( T2 j
" T0 m8 D0 Z- v, b* ^5 g
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))' u; Y5 O8 R4 e" j8 r
;;及时更新i对l的评价质量的评价: O# b; J3 U: i" t
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]4 |" e, y! {# w
set l (l + 1)# B! P+ [: _# }
]
+ I; p" ~$ O2 H b1 S. y ]end
. F4 g4 H4 i% }! {- H+ x& _ S, |+ K$ q Y, F- M; Z! I
to update-credibility-list
9 p) Z$ j, u0 U1 B/ N8 qlet i 00 O8 m' \5 K, T9 e! n1 L9 Q. P" ~
while[i < people]
, z7 Q5 T$ R( h1 [' U) ?0 t" D7 C# c[ G1 D# X- ]2 a: Y
let j 0
* ?7 r4 j! X! p, \6 E8 Ylet note 0
8 P) g1 v5 f* V; G# ~( O6 C" tlet k 0
& V3 w3 K6 Q$ {* a( p+ ^;;计作出过评价的邻居节点的数目
9 M8 R# Q/ A4 i, G* `5 {while[j < people]
5 g7 I! p' D8 _8 D; ]9 D2 S[
; r6 i' I6 ]/ hif (item j( [credibility] of turtle (i + 1)) != -1)
4 y& m7 @# r' d/ Q+ b* ]- X;;判断是否给本turtle的评价质量做出过评价的节点
+ n1 {" j- T+ u* _+ e" T2 h( B9 T) B[set note (note + item j ([credibility]of turtle (i + 1)))" }4 j5 j: y, ~3 \- F! H9 l
;;*(exp (-(people - 2)))/(people - 2))]
+ Y! ^/ m2 f: P# N) r/ k2 oset k (k + 1)
' ]- j/ X% N6 h9 g( m0 K) N]
- s- i& X1 F, q5 a( q2 [6 m. oset j (j + 1)# f: |; N4 g8 F+ ?6 A6 W
]
1 B' d2 h4 k, T% B2 a1 H7 Zset note (note *(exp (- (1 / k)))/ k)( j- T& L& F4 R' ?
set credibility-list (replace-item i credibility-list note)% F A+ t5 \5 v1 \- f, s( h
set i (i + 1)
" |- u0 E4 H8 U* y* C& D]: H' E9 _0 h0 P2 u4 Y9 J
end
6 E N Z& n1 y [: e! X. F7 f! u& r2 ^: P
to update-global-reputation-list8 }% D/ y$ q, A3 I
let j 0
6 @; s6 N2 h0 A# \4 e& cwhile[j < people]
; J+ ?$ s& i4 b( A3 s+ \[
1 l, X4 W( w5 }+ K# s k1 \let new 0/ f) }$ o4 x- W+ ?" I
;;暂存新的一个全局声誉
) c- C- M+ d8 H3 Elet i 07 `. b1 [$ h% O# ?/ a
let sum-money 0
1 e) C) M( }( N d f' D2 U( Qlet credibility-money 0
3 A3 E7 C9 P: d! `! W- T9 fwhile [i < people]1 c/ y1 j0 k0 L3 u+ W( A3 E$ P$ k
[
2 @ W; c# G! @$ q: n( t2 A" yset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
+ Y$ X3 ^2 Z+ Q5 W8 z5 [set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
3 d* ?# K1 h d8 a+ J0 Pset i (i + 1)
, H1 }8 |- \9 t( Y; b4 Q]8 q% w( @+ y) g
let k 0
: s1 F. a( ^) ^/ p, g, G a( olet new1 09 D v, z: f. |, ~( n9 }
while [k < people]
+ r# ~: t2 s) R[
" R* z% Y G$ G' ~1 l9 W9 q* v Jset 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)4 ?; N3 l# ], W# ^
set k (k + 1)
2 `0 n/ \( e7 I9 a5 o. Z]
' L9 Y0 s/ E2 o2 G4 d/ [set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ m6 k) ~8 A9 V% Hset global-reputation-list (replace-item j global-reputation-list new)! U7 \9 E% G3 t. i! H t* R/ R
set j (j + 1)# d- b6 _: h" A
]# N% I4 V1 c) g m; s4 m' Y) X
end: a5 v+ F$ ]0 M
' a" j" H s4 U5 h
' y& `0 @( f0 w& b' s' g: k
n: Q" f* u z Q9 P% g0 U* r5 D$ Vto get-color7 v, L. I. ~ n8 ^/ b( F
6 o4 f8 r* K" b! h# X2 J1 Y2 h6 kset color blue( r3 v; J+ P9 u% P+ j: t2 O( _
end
$ i, [# n8 g( e; e& I8 L8 K# L
8 m: g4 z: N" }. X; |, R- Z2 g1 Q# w& Yto poll-class
9 S( ^; t' ]5 H# ]! dend
F# ^& c4 [( @% Z' Q/ Y: Q5 D8 P; G7 J
to setup-plot19 g. W5 P" r3 z1 [& i/ T
+ p+ q5 P. X6 S# ~( j
set-current-plot "Trends-of-Local-reputation"! W! n. o5 [5 d# N+ n* v
* S; `4 U# p( x6 R0 Iset-plot-x-range 0 xmax+ q. W, ]5 ?' {1 I1 B2 `
. ?! e H7 O% F6 G3 mset-plot-y-range 0.0 ymax
5 ]2 v0 _' h5 S4 w& V# j. R' eend
1 u0 T, `8 G, q& q8 `3 |7 N
' [3 Z+ {! {# i! z" t5 M) f" @to setup-plot2
6 Q) v! N- j" a$ J/ o$ H
- v1 [1 `5 U+ O: |set-current-plot "Trends-of-global-reputation"3 R4 r3 l* ~, i/ ^; @& \
& c7 K+ Z* Q3 f0 b9 `8 ^0 V
set-plot-x-range 0 xmax( @$ \6 v4 P4 p7 r1 F" W
& X5 D$ y. i2 A9 u$ r2 qset-plot-y-range 0.0 ymax3 h( T- ?& o) s) j
end
# y" R" }# Z8 V/ I* b9 b
' i9 {# Q( ~ M/ s1 {to setup-plot3( y' F* {2 p& a( r, D0 _& [7 S
+ K$ u9 I1 F9 Z
set-current-plot "Trends-of-credibility": r, I4 {8 @8 \$ c w3 I$ W! `
* ~- L; X3 z/ c* E8 ?9 F
set-plot-x-range 0 xmax
2 q, |, }( Q1 `9 a# ?9 x
2 n; y$ e( O% _) Tset-plot-y-range 0.0 ymax
, T8 i/ ~7 a9 O1 dend4 j) W: d- {7 S
9 ~: x* {! J- ^$ v3 u, h2 [
to do-plots6 s. B/ s. q" k0 q
set-current-plot "Trends-of-Local-reputation"
4 ?0 t/ W H( S ]* ~& k8 i7 Oset-current-plot-pen "Honest service"
5 T8 K( Z; g; z& z1 oend- @4 ]9 J7 v* ]$ z9 d: ]. D
! e5 h3 B* Y6 r/ {* a4 J[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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