|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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! L ?5 |' S$ i/ D
globals[* C6 @; { k, y M. k0 G9 K: z7 t6 ?$ @
xmax s' g2 v* X8 B, o
ymax
7 D3 y( X2 H, r* eglobal-reputation-list
$ j# X( r# O! ~/ ?0 H3 t; Y7 b
; T! A. ^ ^" t;;每一个turtle的全局声誉都存在此LIST中+ I# @5 D: @: A$ P# T9 i/ d+ F
credibility-list
( u! |9 y5 ]; Y0 w/ };;每一个turtle的评价可信度
& o5 S% m/ t- `- [# f! I$ Y7 mhonest-service
& N! D& C" Y. @, v- Yunhonest-service7 R3 A* ^; Z# V/ U
oscillation
8 L2 X6 d& I( A) x& R0 z1 Q% Drand-dynamic H! K! L3 J! i% E- y
]; Z- |! y: J- }! p) d
$ J9 W( p: n. m. o! M& ^7 m) r0 ?turtles-own[* \: a0 ]1 ?1 b0 ]# m% U" u% j- o
trade-record-all
' C( N9 X. W6 q: ~;;a list of lists,由trade-record-one组成1 _( e: N: Y& x3 q# P R
trade-record-one. s( _; Q% s: F% K6 K2 c' n6 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3 H* }6 i( ?& d- [/ J
9 ^ D- H! w- o! [) J; t/ v
;;[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]]9 P8 K( |5 o% ]6 p% _' n
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]
( a2 Y: G: F9 z: F% Icredibility-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
# D& @/ L9 {1 ]$ W5 X( Y' `neighbor-total
! l; h7 l5 ^) E0 y;;记录该turtle的邻居节点的数目. T% i4 L$ Z6 y9 ?
trade-time) N# c' X3 n( A0 I
;;当前发生交易的turtle的交易时间
" W1 P4 n( P: `5 kappraise-give, @, Q% H" N1 P8 w5 O; @- q e- u- [
;;当前发生交易时给出的评价( j% I( j+ I: u* i4 w1 _
appraise-receive
! C3 w" v8 \- l! n; x;;当前发生交易时收到的评价2 y9 @2 r0 V. V9 L
appraise-time
( K& @3 R5 `8 n5 `3 ` y+ ];;当前发生交易时的评价时间6 g$ B) q% d7 m$ S
local-reputation-now;;此次交易后相对于对方turtle的局部声誉( T( B# m. W( Q5 P8 e! x
trade-times-total
) E1 P' z' b- i# x" ]4 w' z8 Y;;与当前turtle的交易总次数, {6 O, x" e" @/ V) {" q
trade-money-total/ s& z. ?9 k' O2 k
;;与当前turtle的交易总金额6 `+ y& K+ D, i3 f9 \, U6 [! p9 q
local-reputation
1 w) A2 J6 t5 Q1 X9 ^) n9 v: Lglobal-reputation* C! L# K9 u$ C* ?. Z8 d
credibility
3 b& ^; N }2 j* z* h;;评价可信度,每次交易后都需要更新( q% ?/ z9 a$ W% l5 \% ?
credibility-all
8 E) `' N% m4 h3 x( D" O6 w;;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
8 R0 \' q) O# {1 a5 A
. u* i4 p" H* b. T) d' K* m;;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
F! m$ n' H; K2 U( F ^credibility-one- h) y# D8 F" T* 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' b8 b7 [2 i6 \; S- ^4 `
global-proportion4 S8 K ~" O/ N% z9 y& ]' r' f
customer
8 F/ U" ]& P. n% j' t2 ^% j* ]customer-no: X- E5 @. k. N! i3 g
trust-ok
: O5 G4 u* j: Z/ Ntrade-record-one-len;;trade-record-one的长度
6 E' i" K. R. \5 d c]% ~! E4 O/ d% w/ w7 K
* _& _/ Y+ q2 w4 I( g1 Z;;setup procedure) D. [$ v! S" B- P; A8 Y5 _
. H- _5 K2 @7 W$ \" p: oto setup" [0 N$ s+ k$ F8 o+ u/ {! A
; I6 H5 a/ L: K% N
ca
6 Y$ L3 A7 y' W" Q3 S
3 a6 ^, h/ ~5 z I6 linitialize-settings
4 Y& v. B( T$ {! y7 x
& Q& {' z, |- C4 dcrt people [setup-turtles]
. @3 K/ G j# {1 D1 V$ ]+ Z. j d' L6 J3 g* w) q8 ]
reset-timer
& u7 w% j9 {6 c) r; ]. h
6 D' x, K* b" |. u( g ]poll-class3 F {3 j1 w6 F2 d. G* y/ N
) A5 G( D3 {5 b$ R
setup-plots
- D6 T4 G! k* a9 w7 g0 g
) \4 s1 y, [/ x2 w1 J% zdo-plots
4 P4 M# b; _' M: `3 ^+ vend$ l0 [% w% G# m/ p0 i
4 U0 p/ @2 J, b. e P. m3 o5 F wto initialize-settings
5 @0 w( m2 d. u. P3 Q3 L4 a3 I& n3 N1 X+ q
set global-reputation-list []
/ [: \5 O# e( T8 \4 O1 S# Z5 @0 I8 c' t- f! o1 w3 a, V
set credibility-list n-values people [0.5]
3 }: W* R6 N# I2 J Q
" m/ A. T0 {% Gset honest-service 05 _- j5 K; E2 q9 [
: \% I X0 r3 l1 g% X
set unhonest-service 0+ i* J2 ~0 r( y# u/ r: {
/ g$ i; k: u9 v# f) l4 ?set oscillation 0) J' a; Q/ y4 N
7 q; ~% L# `3 ^, ?8 |set rand-dynamic 0
8 G# @, v% h0 a) x* jend0 S: P7 i# @# ?( v
$ d# x g( R- _7 o- A& i9 `4 D! W
to setup-turtles
* t, u! f* N4 a( F/ F" b$ E4 Yset shape "person"
! l0 F( X9 N2 p6 n0 d$ Z1 jsetxy random-xcor random-ycor/ ?2 `* ^/ F% _
set trade-record-one []5 o& b9 }4 R ^
6 c; `* j2 T) f
set trade-record-all n-values people [(list (? + 1) 0 0)] 5 i1 h# z; s& x7 [: a
# m- ~4 O+ ~8 ]! ]set trade-record-current []; Y% L( |+ g5 Y7 `: N7 Y
set credibility-receive []
% ~& R: j/ \ I9 R1 xset local-reputation 0.5' C' E2 N# u: t& O! B M+ ]
set neighbor-total 0
& P' C c7 a ?2 N6 k9 X7 n/ ]4 rset trade-times-total 0
' D, l" O5 l+ J0 iset trade-money-total 0
& U! N% v# Q, X. y4 @: }set customer nobody
5 c' R8 l# l( E( T7 i$ oset credibility-all n-values people [creat-credibility] T X5 _0 G- y$ E5 B4 a! F7 Q$ T! |
set credibility n-values people [-1]
0 o5 [5 c2 H8 K6 @get-color2 t- B& Z% d* \3 w# d5 K
1 a# y+ p, [/ f/ s9 w$ @. ~+ k0 }
end, Q: [# R: {! T( M
4 H0 R0 x2 _. E4 q- |# Z$ ?% N2 Uto-report creat-credibility
; ?0 P9 i. p' X" K4 U6 V1 _report n-values people [0.5], A8 I/ b! [! l3 h# ?9 i
end5 ~2 i+ F/ p+ b1 o8 t$ v; l
# `/ S$ q7 T7 S% ~0 i; @to setup-plots* S7 g$ b0 o: b, V
9 e5 t* X1 J# \$ k. [set xmax 30 L+ k. P/ l8 Z- s
( F& |' A7 t7 H4 f: k m; `set ymax 1.0! [, X* s2 R3 D0 x3 V
/ T( k1 A5 Q- Z8 E4 ?
clear-all-plots
/ T, q2 [: K8 w; K5 n: B' k' k1 `9 l; ?
setup-plot1
8 e# `/ f! j. r" s5 z* b% M4 v9 N2 T# {
setup-plot29 g% ?0 j" [# T- h. y$ c' i3 s! Z
# m" N( d9 h1 f* s) e0 n% }$ a
setup-plot3
/ d! ~1 h" K5 i4 o; B# F% a9 rend
, {; ~! y/ o; A5 G* s& s2 d5 A2 `# w! [, {. ~/ [
;;run time procedures
0 w' h' j+ e/ K- E- F6 N! w- l
% ^! F# X9 |6 s1 ]to go
! }+ [& |" r( C. w# w/ s' I8 w$ h1 D" t/ s) p) j
ask turtles [do-business] X' Y0 u# @6 J; h o J! {
end
$ G9 O/ L& I' S2 {8 O# g/ Z# N# Q6 o9 m7 W1 g
to do-business
* `/ d) P, \( }. u# W7 n+ ?6 {! v1 Z2 y8 m
8 M! D% F7 G, h, Y4 f5 u4 brt random 360
% ^ T( ]- b# |5 r1 Z
1 D, E: A4 r1 ?/ U! C- K" e- Ifd 1
0 y3 C$ P; x6 |. S) {2 q |
& v. a. c. C' y: H1 a: j$ iifelse(other turtles-here != nobody)[
6 A: H7 V/ C* _7 i0 T. F: `
! q) L M3 C" P0 M. Qset customer one-of other turtles-here
& ]! e' Z2 K$ w! U. D6 d$ @
9 F; a6 R8 ^7 B$ W1 s;; set [customer] of customer myself
; x- Z% R: e9 D+ a$ `+ H& a7 V) j T/ d
set [trade-record-one] of self item (([who] of customer) - 1)# p% U% h- F, H/ D. R; H
[trade-record-all]of self7 S; J. L; }: G/ A* M
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self3 \2 C* @ O: Z9 }
2 ]. [# C7 G+ F% D" O; a2 e. [, Rset [trade-record-one] of customer item (([who] of self) - 1)
% m S; J/ u7 C; S* U' i$ S[trade-record-all]of customer
) s3 K9 }! H! c/ j6 }" ~$ ~, S$ O) I8 F% f {! ?4 [' l
set [trade-record-one-len] of self length [trade-record-one] of self
! V& i0 @7 h7 ]- S, f& F. N4 N! f
" {$ q, X* ]5 G& [+ X" a5 mset trade-record-current( list (timer) (random money-upper-limit))7 X$ ^. Q; l9 c5 _' o
& `" O# i' u: F+ U" \7 h# t. z
ask self [do-trust]! f* c+ L$ H) |1 q6 ?" K# B* O5 u& N& @
;;先求i对j的信任度
8 g) Z1 s6 i& Q- a4 [; O8 V8 M3 n
if ([trust-ok] of self)& A7 \3 n" H4 b
;;根据i对j的信任度来决定是否与j进行交易[
- o4 }# I8 _/ E, mask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself4 V1 U* W/ ]. p/ L! e+ @0 [. y9 i
( `6 ]2 @5 ?) d2 q4 i2 P! ]/ ^$ S
[
v, F4 l: ?+ H' n: Q
% U( S% ^: ^+ Ddo-trade! g5 i7 |6 N* f( z7 R+ x: F2 |
2 W" [) k# Z/ L6 b2 ^update-credibility-ijl
. c& J5 x3 `/ f& |/ S% d2 o* I( Z& |7 ^! I
update-credibility-list
+ C) h* _. m" h2 t
, y1 t! B- a# Y6 M) E: _" }3 g5 Q7 h/ ?. E4 I
update-global-reputation-list
. O* ~: u. p. \+ A8 `! f! n8 i+ [
0 r @. w* A+ ~" z: z0 Zpoll-class9 e G8 o( ^ Q9 @6 C- h( b' v
- R+ v7 \" V- d% uget-color
# Q- I% j! d& [5 [# D0 g9 P/ |
$ V1 k' G- K+ U0 X D8 J5 l$ L]]! i3 [5 W- P/ x. m) B% X8 j7 b
5 Z0 x% Y8 }( M& v4 B;;如果所得的信任度满足条件,则进行交易
4 f$ n0 R7 b) M
( O3 G) g: R: F2 O- o[( e) Y5 ~7 D/ ]4 k1 F% \* Q
' Z3 i) a. Z2 h# K v) T X, V3 T( frt random 3603 a/ _& d% N7 [$ r
$ c. ~7 }! B% z0 p2 J# r+ P6 q$ w
fd 1+ Z1 X! {$ L) ?0 ]
1 g: p9 D5 @6 p+ H2 t/ J. Y]
# D, |2 \! d2 }5 o/ f( Q" e( ^
7 _7 m) r! n2 X1 \# T/ I. send
- T5 K: m+ {& O6 n! e9 i% {* \% n" e) w: F% F; I0 L6 z2 D
to do-trust
! P6 ~( `! `! I: H! z# ^3 d$ J" ]set trust-ok False% ?* G/ R( i: b) _8 O% B4 v, f
: I* ?" Z/ A$ i0 W1 L9 l n7 r7 B. r4 E" ?) W. t
let max-trade-times 0
2 f3 n& ?6 j- Q" x! {5 g: ~. m5 dforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
- }* o0 t' C2 j3 E/ }( n6 ]( {+ Clet max-trade-money 0
' j9 g" u, T+ \: h7 s7 R6 \3 }* Rforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]6 p4 N& p9 J" D8 G$ b# q1 D
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
5 L' J. d' {' w; q' Y4 Y0 V
2 o# \$ O* t5 p2 B2 M& O+ x# M. P
get-global-proportion
4 w/ \: H& E" N! ?7 ?let trust-value4 N+ a, B5 E" H5 k# ]0 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)3 B2 X$ e: V$ Y, R- R
if(trust-value > trade-trust-value)
# x3 `. p# F% h[set trust-ok true]
4 h& l+ ]+ `. j- x# V) wend6 h5 M& T6 J- a& Z
$ Q' v2 }1 f% Q% Q0 u6 }
to get-global-proportion
1 m- q0 B. x V- [ Lifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)! z5 T- k- Q! w& H1 g. L! r
[set global-proportion 0]
, E& w' _- I2 ?& a3 ^[let i 0; o% F0 \& x% \$ @0 z( ?
let sum-money 0- y7 M* h( A4 h; s6 J B1 @
while[ i < people]
1 b: [! O2 s E7 Q0 P[& R' j* l( r8 M# p5 `/ h1 b" C( d2 v
if( length (item i( f* G, z, p' E4 U Z4 Q
[trade-record-all] of customer) > 3 )5 p2 M$ t j& F" ]0 u6 ?8 R
[% t( ]# D. e6 H: D" \
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
1 L0 T- K+ N4 Q]3 a$ H9 q* H6 k7 r" Z. y% Y
]
' q8 g2 N5 n( ?8 Olet j 08 p$ u' o0 }" p; S. U' q f+ [
let note 0
( Q7 C0 W4 H9 m5 K8 n0 l2 qwhile[ j < people]
* }/ w! z0 S. y0 \$ S. Y5 R P[0 X+ s0 @) H2 b2 A$ m3 ]
if( length (item i
$ O5 G f) U5 I9 A4 U5 _# b: a% ^1 i0 G5 j[trade-record-all] of customer) > 3 )
# @; ]; g) B" Q6 h. M5 ?! H[
) y. c) B0 y, e5 f* X% a( \ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% Q5 w! `9 b$ z[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
7 o/ C0 h9 `/ C' |) y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]" N! d$ H5 t3 J
]/ e6 G1 M6 _$ o
]7 e( ]7 j. m& S, I0 a
set global-proportion note
/ z0 S' C0 W5 N9 d' y4 R]; z: x2 ?; e+ Q: w9 }
end
9 X/ M! o- r: T& ]( k
( B5 z! l8 X2 A8 G' r7 jto do-trade) A0 k* k; J1 X' p, `' O% N
;;这个过程实际上是给双方作出评价的过程
& f: R! J# b0 v) ]& ~" ~set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: h! J; m. G7 {0 O3 r7 Y5 c! dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价1 x" T5 D9 ?: D! S+ W) T$ W
set trade-record-current lput(timer) trade-record-current' n) W- h+ g6 P8 }1 m9 N
;;评价时间
. {7 a' o' t, s2 `: uask myself [
- G, g ~( @5 l" \0 G" F% j5 R0 c3 E7 Gupdate-local-reputation/ |( q+ U' ^4 M5 i
set trade-record-current lput([local-reputation] of myself) trade-record-current. g7 c5 ?5 }5 h- y
]$ T) G5 d3 _( L% w9 f) G
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself/ @ Q, S# x0 g# c* n
;;将此次交易的记录加入到trade-record-one中
( ~0 m' o: r' C8 @4 Y1 Bset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 K9 P( ^ J& ~. [; x, qlet note (item 2 trade-record-current ), m. `$ {6 u- h
set trade-record-current& v7 P# v/ ^. y+ c, m
(replace-item 2 trade-record-current (item 3 trade-record-current))
; Z, n$ |+ I$ L, A! Pset trade-record-current. a4 c5 U1 g* f
(replace-item 3 trade-record-current note)* N8 d+ `3 N% t
# o6 H; b& f, u1 ^) I9 A1 H
5 I" O3 g2 s/ k1 R& Jask customer [
0 }& ^- y: \ C! I; Lupdate-local-reputation" z* j3 ~0 D8 e9 \5 V
set trade-record-current
% g2 _, i% j$ _' v L(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) $ g! o& [; Q2 _; R0 x2 H+ b
]! L/ H1 c$ W2 E" ]
/ r/ ^- }# {# K
. x! Q9 x6 l! N, J' kset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
% h/ w0 Z7 l7 X8 I( o( J0 Y8 c6 d, k' C/ l+ `; m
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 h( h& [" ]* j4 ~- e, s
;;将此次交易的记录加入到customer的trade-record-all中
- D& P8 [8 Q4 N3 Y- i g; dend; h; H. o8 o% Z" ~, F5 y9 X
/ w( x) e6 w9 F0 F Q
to update-local-reputation# H1 A2 k- G6 }5 {! S
set [trade-record-one-len] of myself length [trade-record-one] of myself
% }2 _, n8 ~3 \ d3 y. l+ u% o4 a/ e& C2 q! }9 S0 r1 b7 H
6 I, _% y. M% L$ R, A;;if [trade-record-one-len] of myself > 3
- m# S! e" J4 u, cupdate-neighbor-total( T4 W. @3 I N
;;更新邻居节点的数目,在此进行
9 S! q3 g' T( @$ Blet i 30 E. T$ G+ A1 a. T. |
let sum-time 0
, R! n9 H1 h' t7 a4 pwhile[i < [trade-record-one-len] of myself]4 I6 ] N- @6 c0 _ G
[' h6 C2 z$ V! G0 v9 k6 N( W
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )& I: e; T G4 [* S- M
set i
- l' x2 Z/ Q+ Z( D8 k" [7 `- A U( i + 1)7 L9 i( G$ L& N- ^+ X5 U5 K2 c
]) P0 I8 @6 x, k, P* |" \( L9 j
let j 3& e* Y9 a2 |2 S! \0 \- n
let sum-money 0
: P5 z9 Y' f7 o+ n) |4 V* y& owhile[j < [trade-record-one-len] of myself]
4 c6 e, g7 K0 J3 K% @1 J3 p[: ^: d' O0 S z" x% \9 i- w
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)
. u( p" ^6 Q2 T) vset j
6 ]8 G! W9 g0 x5 u( L. c9 M( j + 1)
' {1 z/ N0 L0 l T) S4 F. N+ i4 w]1 j7 H! d4 E) E
let k 3
7 I7 d) _* h. ]let power 0
& S' v; _( g; J1 o+ B8 g o4 i+ o. {let local 0
+ ?( f1 @5 d$ {' i8 j, n/ Lwhile [k <[trade-record-one-len] of myself]) T) }" w3 b; X U m7 z
[9 W7 {* e! q) J
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) , M, ]1 d, W+ ^" z6 S: M. r
set k (k + 1), m8 w2 ?0 c1 m- E
]
$ i+ Y* N! s( j# `4 f. Pset [local-reputation] of myself (local)
! b& ` D) o8 B0 h, tend
1 I! k L1 P5 Q7 z0 n6 L$ m5 z- x V& c' \& e E: a6 {+ u& C5 K/ f
to update-neighbor-total5 |, F9 t1 u# ^ g& D/ C
" E& | r# g! C; s+ [* `if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
. Z2 c: `6 ]; F% e; P: s3 O$ Z" r0 E, |# G o
' K7 _& g2 z8 K% R! T( \ g x, G
end
7 m9 m4 Y7 V, p- w: J" u, m+ `; Y( A! C2 A8 n( l+ i
to update-credibility-ijl ) ^) z* ]9 b' ?& G( N0 i, [" t
I& ~, C/ c$ t9 ]0 c/ 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。
, g. D3 k5 x1 Y rlet l 0- E% \. r5 R2 L" F- o0 W- V
while[ l < people ]5 |* O7 Z! B! g8 ^; T `2 p" C e
;;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
0 _: e7 S( L5 O5 \[
* v. J) |) Z* x) `% e! Olet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
/ m7 Y1 t- ~- w. m2 F2 p* o Z8 Sif (trade-record-one-j-l-len > 3)5 m! P. P$ I$ M3 v2 ]
[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! q3 Z- o8 d9 i0 u" I/ B
let i 3
: c! t- ~# D! Q. e2 glet sum-time 0
+ C: l4 K- x+ X8 h- e6 E' \- j- J6 e1 Gwhile[i < trade-record-one-len]; a: N4 M( |& W7 Z+ F7 {
[* u/ c) \* u7 ?2 H
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
4 D* w! h2 i" a2 |2 ^; Sset i
9 v; Y0 V4 s3 K- r$ ?$ g* N( i + 1)
7 K ]: ^9 x! U3 e]
8 n# b: r# @& \" w4 Mlet credibility-i-j-l 0
' n! o- C" f% L, Y E8 J" F;;i评价(j对jl的评价)
; V4 A' N/ G3 clet j 3+ k5 Y' N4 v# b
let k 4
8 ^1 F& L5 M6 _/ qwhile[j < trade-record-one-len]
- f' { s1 i1 w2 a+ p3 S' n[6 X4 \: ]1 @' B& p1 L- s/ A$ G
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& M: o) u8 `$ i& q5 c) }# F
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)) R4 V. y2 t( B* `+ U; o
set j
( l$ f4 w% j5 A. _+ @' K1 w( j + 1)2 @# A# [$ R9 }7 b
]
8 U- {8 x3 A: j2 J) e+ 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 ))
0 p8 I) C. {8 k+ F. } r
' |5 N" }* o6 t' X D' u; S7 [+ ~- E
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))8 k. n/ K' e9 h$ j+ W4 m) B5 Z
;;及时更新i对l的评价质量的评价6 U0 c, ^; K2 q7 c4 |; n4 e8 A. k
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]+ A- d3 q* s; r, e7 j
set l (l + 1)9 K, n1 E0 P n' Q: H
]
+ E: P+ `+ u' }+ e9 [0 H4 Gend
' [1 j8 R& u: @( d
+ z$ e7 r9 k% Y9 K2 K5 lto update-credibility-list
! z) t2 |+ b; D: Ilet i 0
! n; P& W, e1 rwhile[i < people]
. K7 n( x4 p" ]4 t[
# W2 \0 S: T1 n: y# A) S1 Dlet j 0
! J( h' j8 z. _/ r6 w) {2 Flet note 0& k% y0 p* E7 @! @) T8 E% J
let k 0+ c; b# F( A7 x7 h; Y$ j+ ?" E
;;计作出过评价的邻居节点的数目
8 t" \7 O3 t6 ~6 Vwhile[j < people]( w; H k ` B( | I6 y+ J
[
6 d8 f* q! M9 B, y9 B5 m! V& Uif (item j( [credibility] of turtle (i + 1)) != -1)
0 { R5 `" G5 l;;判断是否给本turtle的评价质量做出过评价的节点( X% [4 h) E$ R% S# C& ]0 x" A
[set note (note + item j ([credibility]of turtle (i + 1)))9 f- K. D, A/ C% A* r+ [
;;*(exp (-(people - 2)))/(people - 2))]
. |0 O# |# o2 E0 a2 W7 I& Gset k (k + 1)+ R/ ~/ z; ]" p" C/ m
]
7 j$ \4 k# [/ ?4 m6 w+ Hset j (j + 1)
/ X# _& _* {0 p* L: Z( @/ V- F! _]$ [& R3 }% d8 p m4 }4 j
set note (note *(exp (- (1 / k)))/ k); C3 r; I Q& @. ~
set credibility-list (replace-item i credibility-list note)6 k7 @1 w* ~3 I( t
set i (i + 1)
! [( Y& u x0 ^) z& B/ q+ ?]
1 B# H9 U, Q h$ b) w" ?( _9 t! ^! Jend
' _% O; x7 C; P7 T
; D' y1 ]$ ~3 t$ V# k7 zto update-global-reputation-list1 U& i; M: V, R+ M
let j 0
$ M8 n* I& b* }9 T' F% ^while[j < people]9 C$ J2 b$ i P% U
[, \* o1 i8 _% Y' J. j x
let new 04 `: j2 a1 K. o% K9 m3 t6 P
;;暂存新的一个全局声誉
4 j' M9 I/ ~+ e( i; k' a0 `. Slet i 05 z4 U2 {" M% C% C+ ~/ W
let sum-money 00 x6 \2 G8 F9 S7 m( k$ n4 h
let credibility-money 0
4 { _1 ^2 W7 Uwhile [i < people]
% P( y; i+ _) l: T3 Z. t[
9 M2 h7 e: U: \( A# B- Z9 Uset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))); F$ b3 j$ e+ l5 p: a% w3 F3 ^
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)): Z8 A: O: I+ y- A- z- g/ V
set i (i + 1)
) Q/ ]# U0 w! D0 d]. G1 j5 h+ y+ w* q2 e n
let k 0
# k3 |' ]! d3 P* T ]4 Llet new1 0
1 i8 Z$ U; P2 m" swhile [k < people]
/ s* P2 f+ h8 v[+ E+ P1 `. `3 p5 y7 Q( Q. v
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): ], q3 [! H* g) O5 f8 B! c5 ]
set k (k + 1)
+ P0 a9 [8 e4 j; `]" J( o4 }! N, `( H6 w4 \" w
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 Y% [. f- a$ f9 Gset global-reputation-list (replace-item j global-reputation-list new)1 Q8 f& w% `1 t+ o& k" I6 u
set j (j + 1)6 Z: ~$ d( J5 Y4 J
]5 S) m* _" N+ t9 c5 E
end* l& X$ \. g+ X, R/ E- F" R1 \3 B
: }1 r. q) ~0 O+ Z) I+ C
1 i( [/ _9 r x& d5 C. W. f
8 Q( j. r! s$ n$ R5 T" n9 sto get-color( ?; }& N0 j. C
6 a k% A3 [7 y* n- e# {: g
set color blue
8 I" R$ ?, H2 Y4 }6 _end
' ?$ ?, E) J, Q) f5 U4 D
/ |* n2 Q& a, y0 Dto poll-class
) k: o7 P- \4 ?end5 c$ T! c' V; c$ d3 Y) x$ c& F
( d) t9 q# }/ g! zto setup-plot1/ g( {0 M* R# d
4 W0 _; k# P- m5 O
set-current-plot "Trends-of-Local-reputation"+ p% @& J! d: }- G
! v6 I4 G% l) X: r) K$ n! h$ Dset-plot-x-range 0 xmax6 T" i2 U) I4 n1 r' g' Y. `0 g
* D6 M# o% T3 E# x. ?- Eset-plot-y-range 0.0 ymax) {, p) d6 k1 |5 Q
end0 H+ R# D, N# \! h }* W% I: h
8 p( p: f. z6 n! H( H- b
to setup-plot23 J5 R7 I* z R; `, R$ T1 }! c' @
* o% C* w; J6 _4 _6 ]- Xset-current-plot "Trends-of-global-reputation"1 B9 x; @" q- t3 @2 V' C
4 B. b# P; a' s" m! M
set-plot-x-range 0 xmax4 l, h$ Q7 h( }: Q
2 L. U# k$ W( n5 Lset-plot-y-range 0.0 ymax1 s* s$ L8 C" N; r
end( C% H0 O- d8 O+ L4 u
. [( V9 d$ U9 o. C' z$ y9 t( Rto setup-plot3$ k; H( ^$ f3 v( U8 j0 C/ [/ f' [( S
5 P. {1 a; v a0 q& ?& B
set-current-plot "Trends-of-credibility"( z9 G9 D# A3 G
' y/ Q! p- ^! `6 F6 K/ }
set-plot-x-range 0 xmax3 R% {! o/ D2 N" R$ F+ e$ G2 P
3 K. T9 O# G- R& A5 Cset-plot-y-range 0.0 ymax; m* g% \& S% ^1 o% R
end+ b% D; U: U/ m- W
! n- C5 f: o6 H3 H
to do-plots, r2 q$ r% e0 N* f
set-current-plot "Trends-of-Local-reputation"
" [; n4 \- E# e. d0 U, gset-current-plot-pen "Honest service"1 v N: o5 n5 f+ \+ h7 ?4 `3 x
end( [/ p8 e: ]" a: ^2 i/ U
. g: C0 M/ ], R/ J8 }) \* G4 k
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|