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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$ R; m+ h7 j- S1 ^- |
globals[+ t' [& i' d, @- ^
xmax
: j3 j9 w2 ~5 T# Yymax1 j6 A( G6 A2 @; b' ~% p- n" P8 h
global-reputation-list
2 B! s0 A6 e5 }/ ]$ B9 r
3 M: i; K. u$ i& b' N" u2 n' c1 b;;每一个turtle的全局声誉都存在此LIST中
4 x. P& u) l' J! ]3 @2 r0 a. Wcredibility-list# z/ k# Q- Q9 b+ M) y$ x& m4 g2 q
;;每一个turtle的评价可信度 [* B# q, Y$ O
honest-service6 t. {" B, b# M% C l. H8 c3 V+ m
unhonest-service
b4 f. q# S2 r& Eoscillation
! b/ L+ J* s g0 i7 L1 H5 Hrand-dynamic
# q" u5 G C" W$ p" m]
/ K/ |" f X4 P/ S
" w B- |- w1 ]; \turtles-own[4 G* v. h' F5 g2 j# c& f- ~
trade-record-all& I M0 b0 w$ F$ f3 i
;;a list of lists,由trade-record-one组成
* B" C( x( \ y- T0 n- C! B' ^trade-record-one( o! v1 i2 O8 B
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ J5 U* }; y0 N6 f
, }8 C; v# K' @9 g8 H;;[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]]) M( q! |7 G; h3 f3 Q. U
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]
- F) M, I; D' q0 scredibility-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
( `$ D3 Y+ b9 z" I: }. ^) Tneighbor-total
/ A3 J5 {% Q9 N* B1 Q; A;;记录该turtle的邻居节点的数目
8 R+ y+ N; O/ q# }! |, btrade-time5 b$ H# N) I2 N) v7 [
;;当前发生交易的turtle的交易时间
( s* @% y+ B5 A' q& j( V# r; E" p% nappraise-give
& v" {* w! @ v! E7 |( x5 x;;当前发生交易时给出的评价% l; I$ n1 D! U% R7 k* Q6 [1 C Q |
appraise-receive
% q b: w: a) x' g6 ]9 R' n;;当前发生交易时收到的评价% i7 O1 g" K- p5 k; B# Z* P
appraise-time
: T$ Y F) x% ~) t+ ]: N;;当前发生交易时的评价时间
/ X" r8 N3 N( J2 Z; F2 Blocal-reputation-now;;此次交易后相对于对方turtle的局部声誉% x/ I0 U' w3 d& r
trade-times-total
- t8 X2 L: P Z;;与当前turtle的交易总次数
: W3 _6 i% i' E& X9 Y' }4 D+ htrade-money-total7 R2 O }- a: }3 F3 Y2 h* u$ h
;;与当前turtle的交易总金额
+ d! L, B- T: Xlocal-reputation
2 _+ y8 c' w+ m8 D. F1 Z" n: rglobal-reputation
3 e; d0 G+ s) H7 |/ fcredibility6 j( E# [9 `5 p! w' ]( n1 O
;;评价可信度,每次交易后都需要更新
Q/ t, e, J F" q- Ycredibility-all
6 C6 g6 V9 w# m' ^;;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, i/ i: _* T) G3 i& o, m
9 J. L) t$ ~6 z! g* j6 O7 |) Y( s) 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# I, J) d" w& v* G( h$ j0 G
credibility-one# O* D4 H/ w+ p9 R+ B8 h( n* C
;;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
$ J# {4 q+ p8 T$ K, Kglobal-proportion
" E" O3 f7 O0 T3 Scustomer1 D. @" p/ _1 g& a$ y
customer-no& Y+ N! T) R+ W6 \
trust-ok
" V& X6 U. J8 b. _trade-record-one-len;;trade-record-one的长度
2 t! v& n' t/ S; A# S0 P9 [0 O]
8 u* n; C, x8 X
2 ]7 f0 a+ @' s9 V* a9 j" i;;setup procedure
/ A K) d6 S* z9 ^! X2 ]9 v4 ]1 M% V- h, T+ C7 b
to setup5 a7 C, I$ E# ^2 K ^
7 j& P6 r9 S# r2 o% _
ca1 z% q: V9 H" Y; ?- x. r/ u
5 W# o# U# x5 ]! x' g7 W
initialize-settings
/ {1 t9 z' J' X A" Z: s" Q' {. b1 I* P5 `5 L6 Y
crt people [setup-turtles]
9 q& V9 S" @9 K* w+ S. L. E+ r" `
+ l* n2 U' |- Y3 e& Treset-timer
0 Q4 ~% {4 h; h! m2 k1 Z" d. A2 H
' R$ A$ a* Q% H5 [; k" \poll-class3 g7 a2 p' N2 U9 I7 `5 m( u n
6 H# B$ y5 b5 J- u0 bsetup-plots
# F7 {# l1 D9 ?; `# i) i1 z5 n4 \4 H: e+ Y' v9 o+ J1 u
do-plots
* R9 T( q$ j l; x# N- Qend9 I, M3 k o. E2 W5 ?( H5 B8 G
1 Q! x) j R- E% oto initialize-settings! s, v, ?& G" u% Q4 {, F: S9 @1 T. r
) t. L+ ~# ^# H5 J' U4 y, f
set global-reputation-list []3 L( y9 I" R/ r4 W6 W
3 c _7 T8 S M A
set credibility-list n-values people [0.5], n9 v. e) {& `: ~$ g
: g# K/ ^8 C2 k
set honest-service 0( b7 w6 s5 V* \6 Z
- y, Z, f, h% H& r1 O- qset unhonest-service 0' t- q" Y) q( h% y D7 N
2 T$ D5 @/ \- h) V: L M0 B
set oscillation 0
) b* o, x' w% D- D! ?. m& [6 k+ {6 i& ^0 Z/ R* x
set rand-dynamic 0
! [; ~; T+ _2 I4 u0 d4 z9 C' Kend
6 C1 c& }* t& q, M: m$ g
, o: ?8 v: G3 f% o+ d% l" X0 j: qto setup-turtles
# Y- u; H$ j @% @) Iset shape "person"
" L7 i& h$ H! e( y' \$ F \. Qsetxy random-xcor random-ycor! G W6 Q1 V6 M4 _( @4 C
set trade-record-one []
; X1 i' e; G, x) C" ?3 \7 h' ?( M$ `5 P' \1 m2 Q& P3 h
set trade-record-all n-values people [(list (? + 1) 0 0)]
, P; m! u# A. u. n0 Z4 e4 o2 Y) z
* ~, }( W3 t3 @7 r, _4 zset trade-record-current [] S7 v, H( j/ e% x5 S! ~
set credibility-receive []! n0 `" H& \0 E3 R+ c8 }
set local-reputation 0.5% b8 o2 { X) n8 v& v
set neighbor-total 04 Z, _8 J6 T( b" _8 b
set trade-times-total 0' _. j2 H; p' y& N; A$ |
set trade-money-total 0, m& f6 g0 a/ t' y
set customer nobody$ p; {0 z/ ]1 x% ^$ J) ~
set credibility-all n-values people [creat-credibility]
+ d) [8 C! M. C0 L+ z' J% ?set credibility n-values people [-1]3 M! |' Y" C/ M5 F
get-color
* c3 m( M X. K |' h0 Z1 \# b+ D. n2 c3 i3 l
end
! w0 r6 o; N. j% M9 P. j
: E9 i2 t6 J# U. b9 \! Sto-report creat-credibility
& e3 y Q1 t8 Z0 creport n-values people [0.5]/ x' p0 Q, Q( a4 A
end$ _9 J8 z& K. _
: H" x5 k8 c5 |4 }! L5 t8 gto setup-plots
* w% s( ~5 s8 a; z9 x @, E5 T, v0 \- K' G9 _6 L
set xmax 30
1 k" j @- V9 ^# E
3 F+ v9 j6 t9 I& a0 mset ymax 1.0$ z4 g% q# M* i
: I, _5 v4 V9 V+ j6 w. yclear-all-plots4 i! |( ?& [9 j
2 \* Z. D% n! e5 y! Y8 H3 K8 b
setup-plot1
! h- e# Q9 {5 d _2 f; I/ E+ R
9 G* @0 j4 H- l- X% q" Fsetup-plot2* V7 `+ c, z" R5 a; f
( k1 Y9 x9 X6 k$ B7 R
setup-plot3: F& m8 ~0 U4 [7 `, b
end
' w1 K1 f( u. D9 [4 v* u4 I: m. X. R; A0 j
;;run time procedures
2 x% }) h" A- ]
/ Q& W& R7 r' I& a7 V% Z' Rto go3 d9 N1 [' l `; h/ M) q. V1 T7 c
! n* s- y) r. ^* C! y7 ^0 q Z) J2 }
ask turtles [do-business]
: S- ?( }6 h4 z! s/ d1 tend8 D3 F9 H, w( j* [7 k6 S* i, i/ M
% _- {$ X0 M. H" g- b+ f) S3 O' Vto do-business
7 A& q4 s B0 z7 G) ^& e' _4 v( v: R9 Q- t$ I& N Z' U6 K4 s
2 ]! j' W. U; K% Art random 360
3 Z) X$ }2 D X& c4 u Q
$ M Z1 t% D8 ]; s+ y% |* Dfd 1
$ f$ ?, g" N3 w. I: M# _6 f0 H; S7 t& o p; ^4 z
ifelse(other turtles-here != nobody)[" b/ z2 r3 [# ^$ h3 [- K8 d
* F; G& o& ?) T5 `5 h' [
set customer one-of other turtles-here% O3 M3 g. ^3 @& T3 X$ a
5 m. l$ ]' w3 b/ a: I' L
;; set [customer] of customer myself
' C4 y) w ~) a* Z/ H# X1 A
; [$ j8 p9 M+ X [# Z: h* j$ X1 e; eset [trade-record-one] of self item (([who] of customer) - 1)
( r# @: Q, f$ u1 X2 p[trade-record-all]of self# y! w! Z1 [9 C6 v" R1 a; Y
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: [& G; Y# e- n
- t" u4 x" C6 [0 Oset [trade-record-one] of customer item (([who] of self) - 1)
3 g; @ F8 I& a9 `3 T& t& ^[trade-record-all]of customer: I) k/ M" y+ V6 X1 D# V# x; p! E2 n9 _
) G& A: t$ C. n; r0 A# k0 dset [trade-record-one-len] of self length [trade-record-one] of self
9 i" U9 s# {& E8 k& H, F4 U, `6 |; B+ _* V3 H
set trade-record-current( list (timer) (random money-upper-limit))
& _+ y% ~3 a8 |. i; y6 k8 ]
, G6 X. A& b0 O6 {ask self [do-trust]
9 l7 E+ K7 |/ m2 H3 Q;;先求i对j的信任度
8 y# R! u+ K9 R) ^) e: ~1 B n+ f. U3 S2 b$ J
if ([trust-ok] of self)) x! s! `' a! q7 F
;;根据i对j的信任度来决定是否与j进行交易[
' }2 t/ ~+ Z2 T* r0 W% C; V/ Bask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
$ `# ?. _* c1 ]% N4 s) a6 e q! U$ y' U* L2 A# ~ ?
[5 ?' o; v; n0 \7 k# C+ L2 o
& x: ^! _; ~' bdo-trade
1 \) F! R5 f8 i/ N9 M8 t9 N; }& Y9 {# K# M. _! K- i
update-credibility-ijl
- {1 B2 S" _; R% ]
! A$ Y* e1 g; @0 i$ E- m' tupdate-credibility-list
9 i" v1 c w; M$ z8 y/ P- e7 C% h8 V) F W5 E! p3 [+ Y
& s6 p) K9 J R% Cupdate-global-reputation-list3 {0 ]2 b( Q1 J3 A2 N) Q3 d6 q6 x
. o) U0 O" S Rpoll-class
6 V9 k/ f+ G% C S% [) i4 ?' J
; ]) `% l' F% r4 b& D$ B& K) Hget-color* v; D5 t3 q, x7 D1 p5 V; G
0 {* L* a: i/ s* V]]
+ b* s7 l$ z9 H- c, ^1 C, m4 b
% H8 D6 c6 e {! z;;如果所得的信任度满足条件,则进行交易; C9 L$ g) ]' C. S, r
4 |& B8 a2 ]% N5 @4 @, B7 i
[
- j5 N8 `+ E- e* D! h# O& Y! D! O% e; M3 i
rt random 3609 g: E7 s( P9 X/ {
& R' {6 b& c" R3 c+ x# e
fd 1: M, P; v3 G4 [4 M" ^
+ g7 F% [; `- |& O& V+ s]( i1 s' b9 z2 R' L* D
* D/ A' j, K( X% j8 A, G, E% ]end
# i4 ^: ^0 K, P9 Q6 r
# i! s$ ]4 {" Hto do-trust
8 V, X( ]; Y# cset trust-ok False
: x& D0 b; M( M* ^! X
' L# ~- l9 P3 g& s' ]. Q
1 l3 `: g b5 r @% y$ j) ]# b1 clet max-trade-times 0
4 G/ D; l# S" L( A) K l0 Uforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
+ P. g7 C7 r' glet max-trade-money 0+ R$ q/ m6 ~$ \8 G& Q9 E# X9 |/ j
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
+ U9 T) D) Y: W& `% wlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))% K9 z6 z2 a' A% X7 ^# g, ]
6 m# t) k8 J6 S
) {! u% H. h' l. [: R" I
get-global-proportion
$ j1 g, l' a: Y* A. y; J3 E ulet trust-value
" J# F+ ?5 W; C# flocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)) ?9 ]6 c3 X' R$ K
if(trust-value > trade-trust-value)
1 L2 C* k5 Z6 h( t& ~[set trust-ok true]1 l, |) I7 |8 y+ ~* z; {
end
6 \8 F8 |! |) R( k2 h9 T7 P/ M( ]
to get-global-proportion6 E9 | b3 f S, S. j+ R$ U
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)# p- ~6 ~" i2 H0 b B- P6 A; p
[set global-proportion 0]
9 |' p! t: V4 |, f8 k[let i 0
* k- o/ @7 T. _1 a3 C0 plet sum-money 0
- U, Q) `3 ^" l% |( ]8 E( Nwhile[ i < people]% i5 N: Q: p: V% ~6 D/ B
[
4 x; x1 ^0 L) R1 [8 m- D- mif( length (item i
$ V3 g$ m* o: |7 W" r( y+ r[trade-record-all] of customer) > 3 )% N4 S* S& N6 E% q+ i F
[1 x" g* F) \4 L3 g+ b. B
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))8 ?, [* E. }8 A y
]
4 Z: g8 E) ]- x. W9 C9 d]
+ w* Z' I. U7 k) R: m8 L! zlet j 03 ] ]& Z* ?$ L/ b3 D/ {2 @
let note 03 F; a6 j) ?! c+ H
while[ j < people]2 ]( E+ d7 W3 Z1 z2 \
[% m% {( d- q' Q1 X4 ]
if( length (item i
% p7 \$ Q2 t( M- k- l[trade-record-all] of customer) > 3 )
; t c% ]8 i6 Z8 c2 t; z" E: T6 p[
7 P3 I% q/ b: _8 Gifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
: ]1 V. Y- K1 e* R1 ?9 m8 v' R[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ A. d* R; V8 P X- c2 E. y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]0 u* X$ r- y. g& ]+ N; b
]# \' K9 Z- S7 r) \
]- N8 a7 Z% |$ ]9 p
set global-proportion note! Q5 `9 w. i, Q& M/ }0 m( L' N$ ~
]
, L9 d3 q7 f# b, ]; c$ ]! qend c5 f" z3 I e# c) _7 h4 p
% T3 k5 Y. \2 L/ C% `
to do-trade
* S/ w+ V& `8 E& g5 [/ _;;这个过程实际上是给双方作出评价的过程8 d+ _ E4 \* b6 S0 I
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
/ B6 S; f: @* L B! {8 c6 bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价) g% a7 j* \ E8 E9 e
set trade-record-current lput(timer) trade-record-current+ w* J; Z8 a2 ?6 d
;;评价时间) W; f) a2 L. L: E" K% b7 W( F% u
ask myself [
) B' @' J r0 U; k8 \/ ^update-local-reputation; a( ?! N! B7 m: C- k7 f6 h
set trade-record-current lput([local-reputation] of myself) trade-record-current+ F# Z9 k. P4 h$ r
]) P" _8 [; s" @, J+ Z$ i
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself/ A0 ?0 b V- s: I e
;;将此次交易的记录加入到trade-record-one中
) \7 a: c1 ^# cset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): |5 r4 t. `4 G+ C9 H
let note (item 2 trade-record-current )
8 @: @! m3 J& Qset trade-record-current
, T) O6 a3 J8 m: @( z% U; `(replace-item 2 trade-record-current (item 3 trade-record-current)): K( b& x$ P6 L: C( x2 [
set trade-record-current7 U1 u7 B$ m4 w. i% p% I% ^/ `
(replace-item 3 trade-record-current note)2 L) s. h% O+ b; V4 E
H) S3 B+ V1 Y" h2 F* j3 {
7 ^: s* s: t+ @3 b' \
ask customer [
2 s% T' D$ ~. V8 V- O6 dupdate-local-reputation
' z' W& [1 U+ O0 v! Uset trade-record-current
8 y5 M. z0 G y- Z3 b. b(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 6 y6 r9 y6 m' n' |: N
]
2 ^+ [; K! r( _# I1 ?
s0 f$ k O9 |8 E3 U& g1 z5 J$ L4 D: m0 \: r
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer* ~( _6 u K5 J& _
1 `3 w! B! f$ X, B! k+ ?0 A8 M Nset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
0 G; @. @2 {: h7 k;;将此次交易的记录加入到customer的trade-record-all中3 R% t' \0 ]9 P: ? v: w: p7 O+ Q
end3 |' R1 q" Z( k( U" C
* }8 l/ l; ~3 `
to update-local-reputation
. c; D) @( T) G1 jset [trade-record-one-len] of myself length [trade-record-one] of myself4 r( h( Y2 D# X- w5 O; O, @
- l& N* ?% S% H' Q& T3 v3 P. V$ H1 ~! `4 i. A0 q
;;if [trade-record-one-len] of myself > 3
* L0 K7 a& F5 u3 x/ Bupdate-neighbor-total9 j J2 a) R3 P' }2 r" N2 v" m* j
;;更新邻居节点的数目,在此进行
I5 _: y. I D2 T9 elet i 3
' Q, S& J5 |- Y* m1 Dlet sum-time 0' m4 Q3 O% j u, A
while[i < [trade-record-one-len] of myself]' j$ u' W" `: k, ^( L
[6 L" G: G7 l$ \1 A# o! F
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
4 t- Q0 C# F7 V) z' e$ L# tset i$ L! c( f- ~7 K3 C: Z- d
( i + 1)
4 z! X ?! c2 v8 L* p0 ^! o]" h3 y5 ?4 A2 A" M& `+ z2 {# I! H
let j 3
$ t' C. ]9 O: clet sum-money 0* f8 {/ V( V1 h1 B- e& j6 ^
while[j < [trade-record-one-len] of myself]: w' g6 L+ T4 K7 c0 B
[2 g& Y/ S4 x9 D! J- J! s# `
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)
9 p' I: ?0 E- D# xset j; T8 }, p( I" F( w$ d; Q: s n
( j + 1)1 \% F# S8 P+ B" T
]$ u% U' f6 j7 Q L+ E
let k 3
: G7 b2 B n- L5 j1 ~* ^/ w: Slet power 0( R; G8 l- t, S* E, ]
let local 0' L4 _5 {2 b, a/ k# J3 w; `
while [k <[trade-record-one-len] of myself]0 {) X1 ?- C- H4 u" h1 E8 v
[) u% A, K. Q7 P7 Q# t
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)
; a7 S% f9 ?: K& `& `6 Dset k (k + 1)/ _; j$ L1 ~$ Q5 |0 V% D- l
]0 ^: o& M+ o K
set [local-reputation] of myself (local)4 @" _3 p) q* D
end
?) {9 B" |* A3 N. o) A
( I" D, L( `4 G8 `to update-neighbor-total" W" k6 I5 e7 c8 g/ u; V4 n" m b
: V9 u0 K/ |4 {5 t6 @9 G) _* {if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
6 m) h! a' U3 j$ S \' B9 v6 N" ?7 Q8 B1 U1 W
1 A4 c1 P; x m9 rend2 M; R0 B1 g7 S! Q
v/ K8 f9 K* z. B8 X% L+ j* \
to update-credibility-ijl 7 o1 r. k t; ?; _) Y) f2 A
3 {# V% x# t' ^0 k
;;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。
) }- x$ P9 D; j/ d- O/ qlet l 00 K( R$ _' `9 `/ ]
while[ l < people ]
% s- f2 y- d4 r Q. 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1 O: \/ L5 s) |: I4 t+ [0 {' K6 x
[
$ i# D2 g# j. x: v+ W4 n Elet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% {. N6 G4 [1 a. zif (trade-record-one-j-l-len > 3)/ J4 P5 O) O2 W9 `
[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# A0 n; ]* E0 }+ w+ O* U) L
let i 3
) E0 Q9 |$ k- S: O1 {/ Plet sum-time 06 M4 [6 s# W' `4 N% a/ k% G2 n6 B
while[i < trade-record-one-len]2 y9 i" v x, m- Z
[- q0 ?! Q4 }0 M" T7 j% c; a
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
* r) b9 p7 W2 T0 `5 \2 zset i/ d5 z' s b" D9 |5 }" d
( i + 1)
7 c# E( B; u: c/ ^% w1 O]! X6 j5 o2 Z- o: v! k2 F. S
let credibility-i-j-l 0
- h6 [# S! ^% K k9 ]6 W9 f;;i评价(j对jl的评价)! ^" S4 B' M; K# j% `6 b5 J
let j 3
' v1 V9 Q6 Y! \& a/ d6 R- ^ Elet k 4
( Q% N" |3 Z6 r* x; o* Dwhile[j < trade-record-one-len]) Z! H" e" D; k4 B0 ^1 a( E
[$ ]7 O5 W7 Q6 P" p9 m
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
$ @" E/ J/ R/ c7 R2 w: q. q$ Eset 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)
5 H- H+ P1 `0 C3 q4 ^5 w! \set j
* W% ~7 \' O7 X& b* u( j + 1)9 U" p8 V3 W" q
]
" `* g" U0 {- Q& j8 l( D% ?6 {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 ))" f. Z6 q1 G& N% A" p; m
; o0 Q% C8 r! ` U2 b
- `0 k4 }# D" U: N. \9 s6 u' W. p- @let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
1 [4 t1 V# e+ U. U& N;;及时更新i对l的评价质量的评价" @6 P# ^6 N F# u& G0 n
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
% K' V4 d9 N+ X2 F" \8 Cset l (l + 1)0 S- z& G& x. f' z' _1 i4 u9 P: m
]
k+ \/ F9 A4 r) C, N% N7 ~$ U+ Hend
! S" m) ~( r: I9 F" M2 g8 M
9 ]4 e" W. Y* @2 k& eto update-credibility-list2 h8 v! ]) M$ a; ^8 N
let i 0% O* r1 ?5 h/ e
while[i < people]( s. _% q( P+ q. i$ n7 X/ W
[8 e. U* {+ T- z8 ~' X
let j 0
4 h7 I9 {2 l# S( ~let note 0
3 S1 u1 X+ N5 l ]1 x5 x3 P! llet k 0
0 b/ W2 z |7 H1 m2 n+ v5 r5 P;;计作出过评价的邻居节点的数目 M- {- _0 u# ?9 ?
while[j < people]
" V7 x3 N0 t; {: u0 o$ p% i/ d[
2 w \- W6 Y3 w+ l ~8 Vif (item j( [credibility] of turtle (i + 1)) != -1)
/ L( e/ r) M5 U' {8 _, B;;判断是否给本turtle的评价质量做出过评价的节点
# c7 d) y! J# U[set note (note + item j ([credibility]of turtle (i + 1)))
& G& {. c' s- e9 y) } H;;*(exp (-(people - 2)))/(people - 2))]
. e7 y) h" L$ _& C( P) C* {set k (k + 1)! V; G" N, T" {3 K5 c8 d
]$ }0 p. W" |; r( A+ A
set j (j + 1)
$ B9 f1 H/ [; b* s; f+ q- _$ e' H) }], @0 {: c* ]% a. C/ K+ T3 @ {
set note (note *(exp (- (1 / k)))/ k)8 E% T2 u+ e, l& o: @+ N
set credibility-list (replace-item i credibility-list note)
( v2 I! ~* w! f4 y! Kset i (i + 1) L" x* H+ j/ |& L3 U6 E( p! H
]
( s5 a- {3 N" _& N$ W( K5 yend+ l2 d; `2 K; L7 x/ V+ x
! ^4 w, b; x. p" I' c7 nto update-global-reputation-list
+ c$ l/ o/ u6 r: ~! O# dlet j 06 k9 J& s- |0 ]2 l) X
while[j < people] ?" e& J* J x4 L) L" ?0 q
[
4 o! Y% _ V% g* A! o" ^. \ xlet new 0
$ M* n" b. d3 `" u( D* s: g2 M;;暂存新的一个全局声誉- b$ W; J( x5 Z+ e+ ]
let i 0* t- H8 f: |5 [! h2 f
let sum-money 0
A. U7 _3 R' ~) i% d1 D- hlet credibility-money 0' [" g+ R; n% w3 t! k9 Z, i! V- e
while [i < people]
6 A$ }1 ?5 i; G0 i# Z, O6 B[8 ^/ p! _$ o7 ^) s2 i- J. d+ F9 ^
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) ~, v5 P# I) B# a7 B3 `( B4 Xset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
& T3 Z, C }4 H" |9 q; y, sset i (i + 1)# y. w! m0 V9 G' T; `# l
]
. P3 L# o3 w' c3 glet k 0$ a6 W+ S5 M% b7 y
let new1 0
# ^6 H( `% }$ fwhile [k < people]: j( Y/ F) Q. e' i
[
& T$ b6 h: @+ Zset 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)& T; @( h3 X3 T( B/ W
set k (k + 1)
$ x- [+ R7 D- J, B8 m7 ^6 i]0 T( d, R# ~1 i, _7 r0 s4 ?
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) / O' }7 S; ]! k _6 g( i
set global-reputation-list (replace-item j global-reputation-list new)' @& p" f& ^( ]! l- n' K
set j (j + 1)
; A/ D9 u1 N; \& y. x]
F, v: ]5 [5 B9 Y. Z& m' S( gend
4 I. s8 @9 E) S9 z" K0 i5 m2 L5 u8 [+ v0 g, t6 c
( |* T, i/ {! E: v6 e' `2 T
. w! S0 K+ ^ J5 c, Uto get-color- x$ q* N* ?3 d: q
8 ?7 C: R j& \1 ^/ D1 z5 K
set color blue2 |* W9 A' Q" a/ { q
end
- ^, g6 w c) s5 \; J: [7 l0 w3 y4 N/ T! |, b5 k7 i
to poll-class
8 h5 D% [5 b. _: r; P* [+ Zend4 s) b# u K$ G
9 s. B) u* E; v! L% Q/ g
to setup-plot1
$ v* V0 L. m$ c7 \( L k0 d3 ?0 {* d
set-current-plot "Trends-of-Local-reputation"
/ ^1 l% @' \8 M5 u8 U( c E! n/ v" \: ^& P8 V
set-plot-x-range 0 xmax
& r+ B/ I6 `% A, u" i8 ~8 @& R) B: v3 O
set-plot-y-range 0.0 ymax
, ?& V# r8 F& }( f" I' Hend
2 `; ?2 q* l6 `; n% ^; H' a U; h) l- O! f2 F$ o
to setup-plot2
. J( J& U+ u& O' J6 n: |# e2 b$ L" ~9 A$ H4 v6 |$ ^. ?
set-current-plot "Trends-of-global-reputation"' i9 [# o" A; D: O* ~: {+ `) V! P0 g" M( g
: ]9 E8 } s" U5 E" ]- v
set-plot-x-range 0 xmax
* A% q5 k% p2 f$ I3 G) \& h& C$ ?6 ~4 J: f$ g
set-plot-y-range 0.0 ymax
% n% L: b, Y3 O H/ G* `5 Dend. H* n, T; n+ M4 o8 V: A
B7 V8 F. r8 [9 O+ R% k. Z* c
to setup-plot3
- Y0 E0 @; I1 f* [4 ^- z* D2 y) G
set-current-plot "Trends-of-credibility") W6 C' y' F# `1 w* U9 o, ]/ `
; ? Y8 t3 I; E7 G/ L# Wset-plot-x-range 0 xmax1 E: p0 d# K* \9 x: c
9 G2 D" L0 z7 v. l( I' Cset-plot-y-range 0.0 ymax4 u* a* H: T/ t" B9 H
end8 U+ z# }: Z8 C! r, O
+ W, m* k& R& u0 t, _: _ ~; T
to do-plots
) Y# q- C Q7 {2 O0 Eset-current-plot "Trends-of-Local-reputation"9 w9 ~& I$ h9 n
set-current-plot-pen "Honest service"0 j/ M: u _+ M" }6 `
end
0 @, b% H( b, p+ [% I( A; \! }$ V3 T: @& v
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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