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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 I$ E2 f) [( G
globals[
" C5 ], N& T% z! T4 wxmax
* K8 H v( f' b7 T2 \# ~) Hymax- R- G% v4 T' b. V
global-reputation-list
; y; P! V$ C- u& m0 o1 Q7 N6 w* _9 u
;;每一个turtle的全局声誉都存在此LIST中) W4 K4 r, [$ v3 c# R: k
credibility-list7 t$ A3 y4 m0 _& `7 ~
;;每一个turtle的评价可信度! c5 t7 j+ p2 c* k
honest-service; r) _: g6 Q! N8 f( Q
unhonest-service7 `, w8 b: v5 A/ o6 G, B T
oscillation" u; x# T, s" D1 W0 B b% V
rand-dynamic& A- Z& `4 D5 s) Y
]
' e+ h, i$ z5 D; f5 |
/ g# u) ~& p9 H7 rturtles-own[
( X! Q+ X q# P4 ^trade-record-all
) V# Q: j+ j% n0 \;;a list of lists,由trade-record-one组成; K+ _4 {; N+ f; }3 `* k U
trade-record-one
* k ~" b* r$ o! |3 f: B0 ];;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
& P* E8 T7 P, X) y# J% j$ l
* q2 y# e! c; q4 f4 w$ k, @! S1 J# x8 {! ~;;[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]]
2 b& C! H9 k. Jtrade-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]
4 q8 B/ v, s: w1 k- Rcredibility-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
% h/ k! ^' f( v6 r8 s/ bneighbor-total
. {; b; W( H4 k- l' d% ?;;记录该turtle的邻居节点的数目 `$ Y9 d; Z6 f7 c2 W0 t
trade-time& c: ^6 @" `8 c
;;当前发生交易的turtle的交易时间' c1 M! \4 S4 j a& [' _; n7 I" g
appraise-give; D7 d- y3 t+ B3 |2 y
;;当前发生交易时给出的评价
2 G8 [( t) e+ ?' ?appraise-receive
& q0 C2 L$ q, x! A;;当前发生交易时收到的评价9 \ D) X x+ |* R" k; ^
appraise-time
9 A% p( \7 Q4 ^# G;;当前发生交易时的评价时间
2 y$ J4 Y/ W/ i! K2 b( ?local-reputation-now;;此次交易后相对于对方turtle的局部声誉# ]2 H0 R# ~+ w, T
trade-times-total0 v: E9 a7 f1 ~# \
;;与当前turtle的交易总次数$ T5 q& O9 E9 v* f" Z: X
trade-money-total
( M. b! u; O7 M; Q;;与当前turtle的交易总金额) y8 w& ^" m& M% y/ `. O
local-reputation
$ m5 B' q* B/ Q, Rglobal-reputation+ J" Y2 O+ L. E, n/ V
credibility
9 y7 @0 p& u( n2 B6 w6 t0 H;;评价可信度,每次交易后都需要更新
' _ w( d& t* [9 ^credibility-all# X4 s2 R1 N3 O% k' d6 T
;;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) o7 T0 Y" _$ H# l4 ?9 n n) G4 O
$ @& I4 j+ A# s2 Q0 N, u' ?
;;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
1 ~: U* @ I4 ?' r) y/ Ocredibility-one$ a4 k S2 j. E$ R8 C# s7 M: p
;;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
( Q; x) J. U' F5 M- p2 `6 @global-proportion: ]7 ]( j0 F W7 P
customer& r3 a0 @$ w. o. x- v0 I5 \
customer-no, _9 s# A0 N) O S2 ]+ v8 d1 b5 {
trust-ok, S+ Y. B4 a& _
trade-record-one-len;;trade-record-one的长度4 o+ t5 }& D2 ]2 i2 r
]4 D/ k3 F; D( c$ L
1 }) A: L3 t3 U9 u X9 e
;;setup procedure* z0 n. J6 c7 @, P+ M
0 x4 z. d) }1 Z- yto setup
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ca
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initialize-settings: H9 A) O2 X! ?& B+ K
) F& r% ^( d; Z. V6 D# N1 Q
crt people [setup-turtles]3 c3 R2 K0 X7 A0 I; D% X& i
1 {( a& N) T4 V
reset-timer
. \3 ? y$ q Z: Y# l% x# y5 q: A2 w3 N g) I; H$ n
poll-class$ \7 A3 \6 J& T/ I u; b
: r% D, z4 D+ Q3 K( P) Z9 e0 J9 Xsetup-plots& p; s) x1 I8 Q% ~" e0 I
/ L! e, y3 D; sdo-plots
7 m8 M8 o2 A7 K5 \' iend
3 C$ v: z" k/ ?- B$ g+ ^. u ]; j/ r. c* n
to initialize-settings3 n' W+ }' s6 Q
v. v7 U$ X& W3 v( g3 hset global-reputation-list []2 x- l6 ^0 a& k3 F( | n
7 T: r0 {# Z- T# O D( d
set credibility-list n-values people [0.5]
0 K& Q6 E M+ o2 F* Y" K2 D, k4 U0 O
set honest-service 0
7 K% W* l) C; c) x/ k
3 r) F5 J& C+ s. Y$ E) k6 Lset unhonest-service 0
. V1 |6 S. f9 e b& Y/ `- W, {& ]7 @
set oscillation 0, k3 a) j+ t$ J( e7 _1 m
D& e5 J5 D9 j$ L! Iset rand-dynamic 05 q# w/ I9 e6 E+ V7 L* r5 g* q
end
3 K! l% J8 b Z3 d* d3 u9 J0 ^3 O5 L2 l0 D3 Q6 J+ U# a6 r
to setup-turtles 0 T( E9 y& o6 l% T" t% L
set shape "person"0 B. N4 B4 _1 t; l% k3 h8 |
setxy random-xcor random-ycor
, Z7 F$ F' P9 C0 T) e' tset trade-record-one [], `5 ]" f q5 h; e9 }9 f
% U$ j) U& U& A3 {" O; _7 }4 qset trade-record-all n-values people [(list (? + 1) 0 0)]
4 b: Y4 W! C7 O1 u6 P2 E; r6 l6 i q7 ~" P y- \/ r3 l( W: j
set trade-record-current []
7 P9 @ w: Q- Q! F6 l; i [set credibility-receive []
) h% ^% @/ f' `$ q4 Mset local-reputation 0.5 i$ C/ J9 h; N# @1 r
set neighbor-total 0
: [/ B4 |* S4 `( Z: M% Y+ ~set trade-times-total 0, i8 H, F! {* O8 ]) G3 ]4 o
set trade-money-total 0" x1 _* {8 V1 }% _1 B8 u2 t
set customer nobody
" g0 Z* R: B {& _" ?set credibility-all n-values people [creat-credibility]
, h9 h. A; i5 dset credibility n-values people [-1]
4 ?0 x" ~, K7 m' ^0 ^) X; hget-color
: g' [$ c* S$ ~% z8 I. e* L# B/ Y3 |) C. R1 g
end6 c5 P/ U' D# q+ E, T7 L
# ^6 p# |8 [: ]4 M$ Eto-report creat-credibility
/ ^1 p( e R4 h) v% A4 u: wreport n-values people [0.5]
: X/ _, m+ l% Rend/ k4 a2 i1 H! ~& Y; o3 V+ N
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to setup-plots7 {' n# F, l+ ]) `) [: O! C: `+ N
* n; W9 c/ K: t3 Jset xmax 30# @1 z2 b; @1 a; a1 m& R
1 q P5 ?# g6 O/ P' L% ~
set ymax 1.0
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clear-all-plots5 O* X+ G9 \" a7 d' Q
- B# F% h( M5 r! ]( Y+ D! ssetup-plot1
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setup-plot2' {7 T2 C# X: ^. M& r* ^
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setup-plot3! e" i" Q8 R( `
end
8 B2 ~4 W2 s' M4 V$ Q3 i2 ~5 M: q6 X2 _% }
;;run time procedures
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to go
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ask turtles [do-business]
1 {. G% a4 {3 m' ^# W0 G: H: vend
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to do-business
, \! ?$ s+ ^6 h5 A5 I! a# T3 t+ R7 H! B- Q, U8 O, S
8 y! ^8 {( v$ X, J( Mrt random 360' G2 u" B. z; G- w/ h' u: B
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fd 1! @/ M( S) ^0 [: w+ e+ @
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ifelse(other turtles-here != nobody)[
{0 }+ T# W* `: h5 n! B
4 _, e* l7 p9 W! I/ P2 }set customer one-of other turtles-here! r* K3 F( Z9 k6 D
N# K9 M$ j2 A1 K i+ B- {;; set [customer] of customer myself. Z. ^* O2 X9 ^4 R+ T6 Z. D
. ~2 l/ l: f$ M4 X
set [trade-record-one] of self item (([who] of customer) - 1)# |4 e- M) w/ i! | y* T7 v4 s
[trade-record-all]of self
) L) C: t/ G% g: G# F R. ~+ Y) R;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
7 q) ^0 |' ]- p4 v, w* T& p% Y
`: ]# n* C% ?9 D6 dset [trade-record-one] of customer item (([who] of self) - 1)2 t+ G* d5 R- y: y* b& {/ e5 f
[trade-record-all]of customer) X2 x$ O3 D+ l* H# P! U$ J, _
1 I/ Q4 ~4 \9 _
set [trade-record-one-len] of self length [trade-record-one] of self# _% K& C. P' v6 F5 J' K
1 Q7 B t/ |/ n4 ?; T' O5 Tset trade-record-current( list (timer) (random money-upper-limit))3 `7 U6 c' N, V+ b; V( ?5 }
^! a, W9 y) m3 a* [. bask self [do-trust]# S/ d4 S p5 z& R2 A$ t. K5 R
;;先求i对j的信任度2 c2 c3 u6 t4 q, k) H% l
" K B* A0 b3 t4 }- {if ([trust-ok] of self)2 D: i8 }* B4 \/ O
;;根据i对j的信任度来决定是否与j进行交易[
$ U( f5 B- H3 _/ oask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
; Q, F% S7 b l$ z
# N1 A0 k# Q5 {# W[$ o' J6 j2 n9 s! R; \: I- W$ V
! z; r$ | r8 e9 x8 p+ ndo-trade
6 x7 Q' ^1 Q$ d+ j% X
/ S1 ]% d4 Q8 v4 r1 h5 Y3 v' Oupdate-credibility-ijl
/ _4 m; l. z! V& S9 I) O: D% |/ p" z$ C
update-credibility-list3 b% |$ j! Y+ u Q. Q3 @* _
' V: }6 D! [! U+ G; G" o) j. g8 {( \" z% `. o U# r4 f/ W
update-global-reputation-list) }8 W# j7 ?* \
, H. W6 l0 [) `7 f% f7 ~* a* Npoll-class" }1 k7 S9 Y0 M' ~. S" }
# ]% s M7 `6 T9 q- eget-color
- }* g! L# S9 K! |1 ^0 B7 w% q
^: d7 W% [. _& W3 d- a]]
* P; l t- b6 P8 Z+ [( a# o, K2 j; M1 f- b3 Q( ]- v
;;如果所得的信任度满足条件,则进行交易1 N% j P% C1 K: Y) {$ V5 R
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[
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rt random 360% V# O. k" Z( ?- n, z! M
" J( E& R* m8 J& }/ ^fd 1
7 _; b& M; J1 O& t& u
0 ~6 U9 U4 Y" D) I, I3 t0 D]
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end- n+ H+ _# t7 T, B1 F
$ ?9 n& }% ?+ H& K; h* `; D! S& T
to do-trust
% |. B& C4 ^& s9 o! {set trust-ok False: v3 U) z( e6 s- }0 Q2 `- L p; P
0 |# l4 R9 X( x: k
9 O% A) W+ p6 t; K
let max-trade-times 02 y2 V0 u: ^5 G, X2 F3 [$ K
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]' u+ m7 X* z) _: a' C; m( p
let max-trade-money 0
* f: d7 |9 b' M$ g3 ^( [foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
+ c& G2 v7 i5 v% o) a+ ulet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))( h6 o* P6 s5 }% H0 s8 S1 d% i
+ P* d: \& n# U9 ^" @5 N0 _8 D
: x! Z+ X+ O5 Y3 w) o0 i, eget-global-proportion; Z6 `6 U& g. M: j4 I, D( A/ K
let trust-value" p, m* h. i* x' F5 K7 G
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)8 J' b6 P8 R' u, L3 y" r& |9 P. C4 a
if(trust-value > trade-trust-value). C8 w; b0 q, v
[set trust-ok true]
* V' A9 }8 H3 c( ~# k" Pend
! G7 c+ [* L( X& ~+ ?- ]/ p
, Z! x2 S x& F+ b- Hto get-global-proportion8 }4 b! b4 e, p+ B8 L
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3): D1 Y- L7 ]1 ^( x. B
[set global-proportion 0]
1 l) S0 N+ c. `( K% O/ q[let i 0
& X) g8 N Z" u7 D2 m9 Z" k5 elet sum-money 03 A4 ?( Q$ C, s# g$ G S
while[ i < people]
4 o$ k8 j0 ]! E; w* l7 t[0 S# V6 G4 `/ x8 P( l4 t D# R0 O
if( length (item i
, a+ b" K) F, W& `[trade-record-all] of customer) > 3 )
5 C% ~+ B( ~- H[
' F% r1 Y0 |4 \) N* {3 hset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
' E2 ^5 m, @( [, a! q' d+ w]! {9 J0 d3 f* [( n7 T+ ]
]" C7 I# [1 E) Y9 l- H3 L
let j 0( @' R; f2 z* e" g- L& G* u
let note 0# J, I/ V* D2 _( Z: t
while[ j < people]
% M m' g0 K* R( E[
1 E+ \+ g) Y) g! L, t+ L' I. kif( length (item i
5 y( W G J& G* y) q# K( n- w* Q[trade-record-all] of customer) > 3 )
9 X; L# U7 F% `+ Z: c7 i[
( d6 K+ S( ]; K3 H V/ p$ Difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)+ M% ~& s f+ ~8 w& X
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
# ]( M$ G# w t- Z7 z' N3 Y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
. J4 m5 x3 x- t, [4 m]
% w1 C! C* @- W4 G% k]
1 @& Z- N. b' c E# J) v; ?set global-proportion note/ H& F. l5 w, ~3 p
]
* A: F/ z3 K X, uend
* `) v8 E* _& }% d1 ~$ x; ^9 d7 j9 k5 n. J# W1 Q: g# ~
to do-trade& t% i; K o6 E* F; `
;;这个过程实际上是给双方作出评价的过程: y. D7 K/ _8 o4 X( e {. C
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价: Q9 q* z* {" \! m5 F/ t
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
9 N1 X! h9 }( {0 ~3 }set trade-record-current lput(timer) trade-record-current/ n9 ?$ q7 l! P* m2 w8 F
;;评价时间
A8 P6 V& [ Z: |! H/ t' n; Task myself [
! T# e4 k/ W( B+ S$ e- q* `$ `update-local-reputation
( r U* ~2 t) i1 _' H; ]3 Gset trade-record-current lput([local-reputation] of myself) trade-record-current& w: z7 V6 L; w, k; j6 q( R
]' t9 Z" }7 I2 H" K- t
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself0 \; Z4 b! w. x5 c) o) M
;;将此次交易的记录加入到trade-record-one中" @; E; c% g q9 R
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)) o7 m' i# ^0 S# u
let note (item 2 trade-record-current )
3 q3 E0 e t# l/ Q7 l( pset trade-record-current
0 i) q% `4 u7 e/ m: x(replace-item 2 trade-record-current (item 3 trade-record-current))$ r/ b, g$ a' L5 G" {: z. W; d) }# y
set trade-record-current0 e m" ^5 K2 u A; c
(replace-item 3 trade-record-current note)
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ask customer [
; C( b' X9 D) {; A- W: o! V$ W( `update-local-reputation) F6 {9 w# i! h h
set trade-record-current8 w! `& V2 a& A( k
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) * @$ F/ n( l% P) o
]9 @( E. a! z4 z2 O5 x
- |" W7 m3 _' @: J4 Z
; e& B: R; j$ G' Tset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 Z. @( H$ g# s1 g/ }: }, D) Q I
, |( ^# t5 U: V( }& `
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))# E' s' x' H3 J7 f# q
;;将此次交易的记录加入到customer的trade-record-all中
- i) l7 Y A* K2 e) Z! Iend
$ _3 a8 ~! R/ y# q4 v1 y; X4 ?0 N
& e# C2 i, _* \; J5 }! V" bto update-local-reputation
0 [; E, H$ {! O4 ]+ Gset [trade-record-one-len] of myself length [trade-record-one] of myself
7 ]# i6 W# s6 P- i u' I- R
x6 Q$ R4 l1 t u% J0 P0 S2 N$ R! q+ u8 I+ P
;;if [trade-record-one-len] of myself > 3
" J. _! ]4 X: W, {8 z; [9 R; T4 |update-neighbor-total: a7 `5 ^2 E8 M F
;;更新邻居节点的数目,在此进行+ t* M% ~& ~, A5 {9 p B$ ?
let i 3
& H2 Y V7 a; H: |let sum-time 0" b% d q, y3 p% h2 O5 c; r
while[i < [trade-record-one-len] of myself]
/ W* q, t: I8 r6 S# c+ N: G[
8 F) d& Q; o# Y# }( Mset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
2 U; j/ i+ X# S2 ] C/ w" Cset i% m0 N" j5 L) d( y5 q% O
( i + 1)- ?* Q% [% p; W8 }2 l2 |; ]+ I; I& w
]
, [- O& `$ h# X) O' v8 _; Blet j 34 \# R8 J+ V F% C0 X$ m
let sum-money 0% W1 L0 h1 E! I4 Q' g
while[j < [trade-record-one-len] of myself]
6 D7 X* Q$ N2 j' ?[
) w3 q+ O1 ]# w/ H& p( k( wset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)7 N& y$ h9 U. ^4 M" x% V$ O" v
set j
; G! O1 B6 f) t+ d" }- ^8 H& k0 t0 x( j + 1)/ l" l: H0 m. Z" G3 {6 K% K d2 F
]" L( E0 }" }8 [7 ^0 F; X
let k 3# l, e0 b& J/ J+ f6 n1 k
let power 0
" S# P) r" _% |4 h" R9 alet local 09 Z3 a. p* d( E( R6 s
while [k <[trade-record-one-len] of myself]8 k' C. W; W$ A3 E3 D
[ X/ P+ t( D( e5 T% o( a# \
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) # E2 ]. x) R$ v: U) F! a
set k (k + 1)1 j& c" \2 ~/ K& a5 `1 H
]* z, _6 S( ]. @# h% A
set [local-reputation] of myself (local)* i2 X, }1 I( Y+ ~& s0 `
end
; x& G& T. f% r0 ?) q
& T7 r! K6 ?* Hto update-neighbor-total" w& w" u0 W) Q7 s! [% M( q
+ N- B5 [! s9 t# w. I( z8 m
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]7 {$ g# \# j* \
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- r$ i, ^3 }' m6 E8 L3 I6 N# _end% z3 q5 I( b/ ^* N9 I* N
# d' q c8 S1 p3 e! \to update-credibility-ijl
9 L2 m4 Q: G' i5 P
7 i2 x' T8 } Q;;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。' J- T' a' f5 h2 O' c
let l 0
. r4 t7 g9 V3 N+ ~3 N" g+ h4 Kwhile[ l < people ]
3 U q/ B7 h6 j5 e% U;;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
( V3 E; j4 v( c( ?) e[
1 K* w3 {9 l* g4 _7 _- Xlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
- d/ A7 i/ J3 m" kif (trade-record-one-j-l-len > 3)
! s4 c, r! f7 G2 x% E6 r5 B+ R) h8 |[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* t! |: S3 [) m, z4 E8 P; v
let i 3
1 z0 l$ m2 B1 A3 s. olet sum-time 0+ Z( o2 a/ K: b" x0 s4 H- d( K
while[i < trade-record-one-len]
& p4 @, ]3 O. N1 |4 K: X* [3 ?# t[
9 L. P% V% {2 u0 a9 ?' {set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )) W2 H4 g* a8 m- v) Y
set i
8 l) r3 \* {$ b4 y& t* N8 K4 N7 Q( i + 1)( Y5 l3 n- c! F p; [
]
; f$ x8 R6 [( }- q6 @+ }$ L6 llet credibility-i-j-l 07 A3 S! |- I Y7 \( Q
;;i评价(j对jl的评价)
4 \3 J; H. |7 Z# I, j0 J' Xlet j 3: K! p- t& a8 A1 C- p
let k 4( j! k8 e ^; f1 L1 M1 G
while[j < trade-record-one-len] Q( J0 x$ R* Q( B
[, V$ ]- o2 N4 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
5 }5 x, B/ k2 w$ v% O+ gset 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)' f1 W M8 }' @8 e5 f E
set j! h4 {( ]' Y0 l. ~. K- o
( j + 1)1 N3 y+ _8 p' D2 t2 G- }
]: U& C. Q: i$ e* [* I' c) J
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 ))+ V3 j1 f8 {& S: {8 ]. x& q
9 J+ A2 E6 z) m8 l L9 d# n; o1 P: ?7 e5 N6 ~* w
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))5 w2 H0 `: P$ o: I5 O
;;及时更新i对l的评价质量的评价
$ q% N7 i7 m' e" T! U4 _+ M4 lset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
8 ` ?1 B' O$ y: S' f! Qset l (l + 1). r/ d' p6 n* N
]
8 |: d! c; V( B- n. wend4 j3 s% c9 c) @2 }
- Q! A2 O8 f6 E& a# L' W+ d
to update-credibility-list* M% s/ \% }, W7 o8 M
let i 0
* n) M2 @( t; Dwhile[i < people]# H: i; I/ R0 l o1 X' x3 F
[; x8 _: k) _( p4 D5 _% l
let j 0# c3 L6 \1 Q, E
let note 0% F* z2 ?, l/ S
let k 0. t8 P. M+ Y x4 j
;;计作出过评价的邻居节点的数目
3 }- }0 L1 @: ^' ~6 g* gwhile[j < people]
4 j& Y/ K- h! @+ s: U[
; s: E* `4 ?) C1 Z {5 ?: H1 tif (item j( [credibility] of turtle (i + 1)) != -1)
1 J2 F+ M* Y o3 s' };;判断是否给本turtle的评价质量做出过评价的节点
5 M$ Z7 Z% ^; w[set note (note + item j ([credibility]of turtle (i + 1)))
! D5 l" z2 e8 i1 t;;*(exp (-(people - 2)))/(people - 2))]- Q) l. V5 Z5 ]- L
set k (k + 1)9 d3 G- q. I: M- V. V2 k+ U
]
3 {) F# c9 e; } t6 f: {) Z1 l( nset j (j + 1)
0 @2 U& C7 R# I, M) U: K6 G]! _! {6 \* K9 U, O
set note (note *(exp (- (1 / k)))/ k), Y# A! ?. X! N4 v/ D# K" i: T
set credibility-list (replace-item i credibility-list note)
2 o8 x3 ?6 R. U0 \( ^0 @ Dset i (i + 1). F* p5 @5 _+ [1 I( f+ F4 m2 c6 j
]) ~; U# c* k* q! K4 Z6 x2 p
end
2 R) c4 e5 Y8 R0 r/ R/ c" N& t; Q% P7 h5 }( x
to update-global-reputation-list
. |1 G; z: ^3 m) K& [5 hlet j 03 ^ x; _5 Z8 n( G& Y
while[j < people] H1 M# m$ f0 n, j9 \3 [
[/ j% T( V; R' n
let new 0' i" U) X/ s3 C# F
;;暂存新的一个全局声誉
6 f9 m) w& d2 ^; P$ \& olet i 0
! i# r a( ?% z; alet sum-money 0# v0 c; C. ]9 e6 R6 N
let credibility-money 0
: f; ^) O1 x) {7 t4 Xwhile [i < people]7 m+ \* f b5 g1 X
[/ m& ]4 }9 V6 L4 T4 X# ?
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
" }# l- r f1 ~# E' u6 W Vset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
4 E1 V0 z$ ~- i; b& q, g# Oset i (i + 1)
- f9 R0 r0 o3 Q# ^: @9 I V]$ L6 X6 J* a: |0 E! c/ m
let k 03 N: N0 w, k. k% e. X: e
let new1 0/ t0 z' z1 r5 b- _/ [5 S: O
while [k < people]. M5 v/ Y% J3 e @
[5 k$ f' E1 [6 p" `( p
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)& V6 O( q0 D$ D: ]. x% N9 E5 o
set k (k + 1)
+ X6 {7 Z; j. m0 []
6 K& Z! A; u3 }7 K) @: h1 w U$ Uset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ j3 L: i* M4 Oset global-reputation-list (replace-item j global-reputation-list new)' H- g" }/ r9 `; ~: t1 S9 b5 f
set j (j + 1)
) t( |; U5 S" @! m' Q]+ H l* G8 {* z6 P9 _, N/ D1 [, J
end7 q1 V2 E1 t7 |6 T* P2 P, z
0 y; l4 m" d( k! R: G7 R( U. o" x; ~9 b0 W c5 H. ~
4 D | q2 P( X' S; S( P8 Nto get-color0 D, P% F( `# c
# E% x9 X7 q/ K$ p5 |
set color blue2 w: @8 W: Z, p
end: E9 ~- C+ l8 T6 c7 Q6 H9 M
7 {" l, I1 v1 J2 C; @
to poll-class
0 T# @% G6 l0 ?# qend
4 t" v* E0 q+ h7 ?$ N$ K4 V) |- `8 ?. S+ _3 \* b
to setup-plot1
# @; X2 C, s4 Y% k9 l0 U, E/ n8 U3 {6 M
set-current-plot "Trends-of-Local-reputation"
2 f; k# u8 M- }( y# ]: V3 [$ H, P7 k4 l X% ~. K( {
set-plot-x-range 0 xmax! T* V* Z, F X! L- u% E9 P0 a1 B* u
4 J, M1 D( a# u0 l4 a4 n
set-plot-y-range 0.0 ymax
( _! F3 z" n$ y; {$ Nend
. L1 f, S5 }6 N) @+ C) g, q Q+ Y* }% w% @# j
to setup-plot2
+ I4 J# A, j6 O1 k* @1 d% `
1 T% b+ I) O. Z' p( h1 z) E4 g: aset-current-plot "Trends-of-global-reputation"# P# J7 m! q6 {0 p9 z5 ^
8 f p O8 l( V
set-plot-x-range 0 xmax/ g+ t2 I3 M3 }# b" W) L
7 \: \7 _ x0 ?/ n7 ?set-plot-y-range 0.0 ymax
+ s J) `" y s, s) t2 Pend
/ C! @5 h( C+ ^- Q' T/ E
; \9 M6 k+ t+ b) u* ]1 o5 Ato setup-plot3
2 u( F4 K. J/ Y o0 ~
! ^4 L8 A( t3 x9 Aset-current-plot "Trends-of-credibility"
$ ^1 i( A) p: v* E. B. Z
% Q+ J7 y2 y' h$ y" a; `set-plot-x-range 0 xmax, Y+ \+ \, r8 u: S: T( A$ i. v5 O p
9 \4 z. k M. fset-plot-y-range 0.0 ymax* v& L7 ?; R- q; }& ^; K8 e2 K7 Y
end
2 J/ V4 l$ j1 h- ^8 U/ Z6 I. Z2 b# X( q& _4 V# L$ |$ r& o I
to do-plots0 G0 v8 L: K. O% t$ t/ ~8 L: J
set-current-plot "Trends-of-Local-reputation"% K. c0 t8 M$ h% a* M0 s( T. W/ z) J
set-current-plot-pen "Honest service"
( f. H* z/ o: E) Uend- I8 [5 g4 x$ f) t: |
- f4 T; m& i: d( c N[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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