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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2 I. o% p1 n h d6 o
globals[
_" i) {" q. B5 z2 E/ }xmax& T, ?( D9 `# f5 @. ~0 \
ymax5 \/ I$ m. Q% d
global-reputation-list
; ^& Y# x+ U+ v% H9 n
+ D9 V, k d5 f- A# h;;每一个turtle的全局声誉都存在此LIST中
! k# v! i: p$ u1 xcredibility-list
/ g5 @8 a/ {, S; A; f0 X y5 f1 ?2 y4 };;每一个turtle的评价可信度4 d7 O4 E1 V$ Y" \3 a5 o( b
honest-service' |( N3 A X) ~9 q
unhonest-service
( `* a9 b6 S# v! S) z! Y# p Ioscillation' {+ i& W3 g( z A3 U
rand-dynamic2 S$ ]* N1 w) v
]: U- U& S+ g1 t- B7 ?
$ [8 c) k" q2 S- Z Bturtles-own[1 X) p7 c3 _- J2 j% ~5 ~
trade-record-all( p% C- L9 ~ Z' S% Y( @ i3 x
;;a list of lists,由trade-record-one组成
* K }1 Z; O F( J1 G" Vtrade-record-one
9 ?3 u4 L2 \! H6 i4 J, c- m: `0 g;;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 G- @! L; o7 u; _3 ]3 `2 K- U! j( J
( k4 g. G1 |" R1 ~1 ^;;[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]] T$ U! i E5 k' C# ]2 o) B d
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]' g5 `5 f* |' Z$ i# J' r; M! R
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
) A; S5 P8 c$ P# E1 Z" ^! Vneighbor-total6 W H) b8 N1 n6 p6 l, n) N
;;记录该turtle的邻居节点的数目0 W L( I/ I! ]) S6 [; H! Y% k
trade-time
' _- I# f2 _' i/ _2 z' f5 u9 i0 M;;当前发生交易的turtle的交易时间
- O) F7 }! ^. {0 X/ G% ^" Mappraise-give/ [/ n( i% y' L
;;当前发生交易时给出的评价* t" i- A( X8 r- o1 ~+ B
appraise-receive6 I8 X. ~, f/ `0 H j/ W/ M
;;当前发生交易时收到的评价
. a1 d/ G. P( d6 Z0 A. ]appraise-time
6 W1 U8 @) H& W7 \8 B;;当前发生交易时的评价时间
% _& |4 i, _! V" C1 I p4 H1 [local-reputation-now;;此次交易后相对于对方turtle的局部声誉6 g+ r8 N9 n/ s) E5 e
trade-times-total6 s! C0 S9 c9 S3 O
;;与当前turtle的交易总次数$ K+ c! i; e% a) Y% Q& J
trade-money-total
. e- W/ p/ G* @- n2 J) x8 h/ c;;与当前turtle的交易总金额- r5 _* r9 p* I* S" o
local-reputation
( H; m, Q3 A/ R5 L. L. nglobal-reputation
2 x2 M% ^4 c9 I, J' u1 b7 J% pcredibility( o9 L- u, c% k+ J4 E3 d, E
;;评价可信度,每次交易后都需要更新
' T3 L3 Q0 @. T" W3 I3 ~credibility-all
/ K$ |; [+ R6 C% f& i;;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5 Y; p! B) J/ d. I$ k7 S
3 ?4 a) y" ?' l* N& c7 I5 A
;;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. `6 J6 W4 C1 y& n& }
credibility-one
( Z {7 L T6 X. X9 q, 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. g$ D {1 z# R
global-proportion
) t* Y7 A6 d: n8 L$ b* J9 Acustomer
5 \" G3 J' j: Ycustomer-no
2 G; ~; O4 O* Atrust-ok, C ~+ v) b! G; I: {4 N1 M5 ]
trade-record-one-len;;trade-record-one的长度
( P* }! A$ K. s+ z% T p7 @$ n Q]4 S' N9 o% x( h6 C
3 e2 R7 d: k' v, A;;setup procedure
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to setup
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2 X% _* a# \5 M; q7 ~6 a$ bca3 z/ X" v0 P* s# n+ e" e" ^+ A
. H, ~9 c! v' s Q" Kinitialize-settings+ ~, g/ j5 x( x' B: I
( p5 K/ U- P% Q9 Z/ I
crt people [setup-turtles]
; S6 A, }" Q4 y6 l& |4 r0 F
9 W7 Y! A' O5 nreset-timer5 u' J( ]* z0 ^
: v! L; ~7 o- S, r0 S2 W/ M, Ipoll-class
4 f/ w) ~) B+ X8 {. I6 T9 C* \$ {; f) Z7 @+ \" }
setup-plots' f- e7 D r/ r1 Z
$ {$ G- I; Z' a% g# ]
do-plots
0 B* |9 Q/ d9 J7 h7 c! D9 ~end
5 C$ N% P4 [/ J. m( x+ C3 z$ ~2 t6 p. }9 G5 q2 V
to initialize-settings- g8 \& a( g7 J) U M
8 @% K9 Z$ i$ L1 Q
set global-reputation-list []" L9 f& V& l0 [' |2 w) A
* ]# w' z+ f5 v5 d
set credibility-list n-values people [0.5]
) @* @' K4 g- l4 ~
# W ]: l2 r, q. T* i$ Lset honest-service 0$ v9 W; m6 X" Y: [9 f$ {1 h/ O" @
1 m+ C% I% [: I+ q! b# v- K
set unhonest-service 0$ I$ [+ M: |! `/ k. v& \; U' p% i
/ }, d# @. y! L( }8 P6 [* Z) W" A' U- w
set oscillation 0
5 M: g# x" z' m4 p" [. b/ k( q- }* @$ C2 h6 r& P+ I/ |
set rand-dynamic 0
1 j% H, U e4 r w4 x) U: Iend1 N" o6 [; n% q' V
+ `) w1 C# A: t& ^' y
to setup-turtles
* p* N6 }' M7 v6 v) C: _# Sset shape "person"2 D" w4 x6 b: y* \: Q
setxy random-xcor random-ycor* i8 n+ m' c1 j; {4 u* w
set trade-record-one []
; c; s4 p9 B+ a6 S' I7 C2 P
( x9 N; L4 O6 a9 s- s; N$ }set trade-record-all n-values people [(list (? + 1) 0 0)]
G( I" E7 Z6 h! c/ M
3 W/ l. n' n' F% }: f$ o. T8 gset trade-record-current []# `* v% x7 @5 T7 r1 ?
set credibility-receive []
. j, c1 n: a* k0 H6 a) L/ [# Hset local-reputation 0.5
2 C* s; l& n/ d/ gset neighbor-total 0' L* M$ \. o0 B6 l7 u
set trade-times-total 0
5 E% F: L: |% q* I# ]3 T/ {set trade-money-total 0
( \5 f' ^/ e. l4 D: W$ S+ u" o( sset customer nobody3 u0 Y4 h: a; T) k0 K4 U
set credibility-all n-values people [creat-credibility]! A0 \6 w# ^$ P/ {
set credibility n-values people [-1]
Y8 K' a' i) P; P) g* Zget-color
, C# C' u) k N% R3 B9 U/ Q4 q! n e: n- E7 @5 \' }
end; ]7 L& R7 Z9 O
) z9 \6 E* b3 \1 B* l4 w2 v m$ s
to-report creat-credibility5 k4 [) a- l! q% u& s) R8 `
report n-values people [0.5]
( E3 L& _% B2 h/ Q5 c) Gend& j0 N; d% I8 B+ p( S+ X; s( h' a# u
: X: b% j- C$ T
to setup-plots
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set xmax 304 h6 i1 I1 @+ }* }9 J% O8 q
7 I" S; U: R4 s
set ymax 1.05 v/ B, g- E/ u; n4 K! L, d- r
) a5 }7 ?( i X2 t! y1 Z z" f* P8 xclear-all-plots
% {2 j T! W! n8 i/ B: Y7 B2 ?# n5 J9 F2 v
setup-plot1
0 d) J% m( e0 t1 F. d7 c9 t. \: `/ k- d1 Z# e! e8 D5 e3 ]
setup-plot20 ?. p F5 L1 R M# x8 C n
! J2 s, M w, \" Rsetup-plot3. Q. @' V: \8 e. [# }
end; ?9 j E4 z+ ^: E3 I& z
. C3 e n$ ?) X7 C; M
;;run time procedures
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to go: R! O1 P/ f' m
+ h {. X: Q: W, X& h
ask turtles [do-business]3 z# `( |; s+ ~6 ?
end9 F- B2 j) ^9 Q. d2 E
6 U7 X8 _3 h/ a4 D) f& d
to do-business & m# t, X6 R% b* f/ n
* x+ d6 \& a0 q9 J: U6 n. O( P$ A
7 a. `- h. q( lrt random 360
6 h! y4 S/ F' R1 S3 b* f3 ]1 O( x$ c4 \4 ]' G
fd 1* I- U0 ?: g% f" u
; g6 [, E/ G& @1 T, ?6 m& hifelse(other turtles-here != nobody)[
: h. w y$ o) D% X# g: c
, |# a- X1 a; I& [! J" \set customer one-of other turtles-here
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: J! j9 k; T" h% c4 X7 C9 O;; set [customer] of customer myself
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; }- Z8 D+ r( g! l6 A4 H) Mset [trade-record-one] of self item (([who] of customer) - 1)
& d/ W3 g7 G5 ]/ O. e[trade-record-all]of self
* q1 @4 F- O6 g) C' L* n;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self% C) Y" s8 _% m& b
. _+ e \; d/ P% V1 }set [trade-record-one] of customer item (([who] of self) - 1)
" J+ ]! v* q2 t[trade-record-all]of customer/ ]2 h+ K8 J4 ?3 O1 W
# O3 S; r. Q6 O1 F
set [trade-record-one-len] of self length [trade-record-one] of self% t" h3 e" b2 G
& U/ o+ r$ D5 _1 q
set trade-record-current( list (timer) (random money-upper-limit))
3 s; M' |, u" {$ W. h$ s
1 c2 d0 M8 ?7 [/ B. P Qask self [do-trust]
( q/ c" W3 ^8 d# M* w;;先求i对j的信任度
3 U0 V4 r. `( a* x( K: H+ i
* n6 @* }' R8 Nif ([trust-ok] of self)' W" x6 W8 a2 K7 |
;;根据i对j的信任度来决定是否与j进行交易[
" M4 o* j& y& d1 oask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself4 l: ]$ O( ^) P
- d4 z1 s7 i( @2 f! a5 e+ c' M[
, s9 k m' v/ Z i
6 ?' L6 Z8 N/ d2 w$ m9 E. ddo-trade1 s6 {/ O: H; h# Q
! i1 ~- x: H2 U! b1 C" N; v+ s. Mupdate-credibility-ijl
: J7 I3 d1 m2 `
' D: r; c) b# p+ U/ Tupdate-credibility-list
! C7 `) Z( [' a2 \! E& a
: I( c; [! Z: i; T; t
. e4 b% a" {: Z. O8 Jupdate-global-reputation-list
: P8 P: I5 k! l9 {# F8 M/ t) ~0 a2 _" G% n' ?) y: C
poll-class4 z# W$ A2 E7 Z2 O8 f" z2 D
! a) I+ h' |$ g6 U
get-color" P7 V. ~0 C1 k) T
$ y3 P1 \ z, b* P2 i8 q% r]]
/ r2 i, J _6 A, v6 W
: t2 w$ j2 U6 u9 g* s# p! X;;如果所得的信任度满足条件,则进行交易
8 K0 r" C- C& C+ B; J8 V4 I3 O$ Y ]; n! ^
[& T8 a& ^& e( ~) n" m
6 j. t5 s7 ]% B/ d2 `rt random 3603 F2 S) M2 D8 c9 ~2 _, I5 R
7 W, h5 V% A3 G% W& B
fd 1
. E/ o; }! p6 }. q; w4 Z! E9 k) J1 V1 A- ~' L0 x; s
] k: j" r3 d/ L4 C: k
8 O6 a7 j! O4 l4 O
end8 h# m* ]/ o6 d, l
; w: ?7 ^2 Z: \3 H {# v3 {
to do-trust $ @7 a% h- f! S8 Y4 d6 T
set trust-ok False" C$ z6 ^) v% ]3 g3 G
7 z, }6 a" {2 t5 J
. \3 D1 b* v1 h. ?/ `5 C3 P' |let max-trade-times 08 f- u& X' M6 s( L
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]* [0 f% j+ ?9 L. j' U, V
let max-trade-money 00 M1 h6 H4 g' I7 ]0 C3 {6 D5 ? X' h$ f
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
2 \1 V# g( c. R4 Olet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
+ c5 ~8 q" W* } h2 z. i0 X) ?: m" q% z3 `. A) [
! R& W( r6 o" Y$ c3 l
get-global-proportion; J$ G+ ~2 u: R) W# ^8 `
let trust-value% P( u& ]) k2 G$ _( F
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 o& ^* Z; @# Y' f" {: r
if(trust-value > trade-trust-value)
: L% e# N/ t! t: M[set trust-ok true]
7 N" I# v; l0 [, Iend
/ X9 T$ v5 i7 j, e5 V$ f, _2 ]: `0 w( A3 i$ X$ \2 E
to get-global-proportion! p- X' a+ z. _9 o: {. I: a
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 f" e9 ]+ E+ W5 F[set global-proportion 0]" }* v7 V# r. H+ A: E
[let i 00 o# G! ^" S% o6 ~: N/ B* s+ z0 d
let sum-money 0; q/ J9 W" o) Q' W3 r+ T
while[ i < people]
) |9 V/ n5 y9 `8 h; W- i6 M7 y$ N[4 H6 Y" j& _2 L4 p& y9 f" r
if( length (item i
' u' Q/ V4 q9 a2 W9 }[trade-record-all] of customer) > 3 )
1 F: r" u& i, D) g1 }[
9 l2 N6 B) X5 w5 B4 U# h$ d$ n4 Cset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
6 I7 G5 W3 L' x7 y. h5 k+ s]
@9 \$ o! v4 I: y, T" C0 Z]
5 A# h4 m! x# T! \/ z3 i- dlet j 0% p# [3 u7 b- ~2 J0 C( y8 `
let note 0
- c$ n( Q! y6 r Q# s( t. ewhile[ j < people]
! o" s8 X% P1 c8 x[# z( c& Y7 D* A0 v7 n- o8 T
if( length (item i* C4 j$ A( b8 u8 o
[trade-record-all] of customer) > 3 )
* M- W9 A9 m9 n7 z9 }8 K[
* w1 o$ {6 S' Lifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
- }( { {2 b# m( D9 b[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]6 h$ d7 m0 u0 | ` c1 q1 M" y+ b5 U+ M
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)] @; B/ K+ d: k" ^2 ~
]
( R/ J1 F2 ]4 N+ W% e2 Z' ]]
# d" ^% b+ y- r$ b2 f2 oset global-proportion note/ L% i0 b1 T( m6 ~2 ?. f9 x
]* t8 R `0 C/ ^- x. N9 n. k
end: F+ b d# J: z1 _" x& T) F3 }' Z/ t
* ~# r" R- J9 C2 j/ h8 E
to do-trade
% _3 Z- b) j1 y* V8 [3 e;;这个过程实际上是给双方作出评价的过程% h4 C- F8 J+ q# {2 F- u4 Z0 z; q0 p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
2 v& P4 d( z" E i4 Wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
/ n0 d' L9 y( G* U d* jset trade-record-current lput(timer) trade-record-current
1 I5 U7 B: s9 ^ r2 p;;评价时间. l7 k! q+ e! Y1 ~ S, K
ask myself [( `0 L: A/ ^# ?% z; ]! l
update-local-reputation O# z( V0 v' ~( a. J J* K) O
set trade-record-current lput([local-reputation] of myself) trade-record-current, T4 n {+ r2 c) z
]
' D# Q' e% b6 tset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself/ B j8 h# `! X) p) J/ [" k0 ]. E
;;将此次交易的记录加入到trade-record-one中
) T, E/ C; G1 ^& ?( R gset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): {6 K# I5 B1 c7 A6 O: X
let note (item 2 trade-record-current )! y7 O: C8 U$ \" s
set trade-record-current& j9 }& E1 w( P1 \. Z
(replace-item 2 trade-record-current (item 3 trade-record-current))
0 F6 o3 D9 d; {: s5 Nset trade-record-current
i l, p" u% ]* b* s6 ]9 \) \(replace-item 3 trade-record-current note)
& h7 h- y+ L, e3 x
5 y0 s9 h6 X8 H: ?8 A) t, I3 z9 u2 L0 ^3 v, w3 V+ z, i
ask customer [
' l) J, y! [) t5 m! Qupdate-local-reputation
/ a4 U/ v( L0 f( v8 {* zset trade-record-current, h9 g$ T! I( l4 f% j! x2 h
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
, t2 a1 p5 q [9 n]
$ V/ N* O1 O& Q3 b b3 R/ \4 S+ G
8 A* J& z+ V, e: k* h/ c. ^% e5 {. Z" u1 g
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
% y$ J3 F6 A+ V/ u2 O. h5 s" n. V# s9 q, Z9 a
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))2 P( u+ b) y8 b
;;将此次交易的记录加入到customer的trade-record-all中+ N: M0 N: N+ _! m( H1 i
end7 R6 j( _' b- t2 V" J! E
2 T+ O: @" O/ q H8 f
to update-local-reputation
6 x, ]+ S0 f7 G% fset [trade-record-one-len] of myself length [trade-record-one] of myself
0 y0 k. P7 N) N4 B
2 z `1 p2 |, _# `. K7 {/ n; p0 }4 W$ l) [% [
;;if [trade-record-one-len] of myself > 3
$ m8 K: _. A8 W7 ?3 Z5 hupdate-neighbor-total. p; O% n8 Y+ b5 ]6 ]4 n2 c
;;更新邻居节点的数目,在此进行% z& }4 y0 [; V" u' J5 S
let i 3
7 S4 Q# h/ D3 C+ ]$ F- klet sum-time 01 q7 Z% Q* r$ B
while[i < [trade-record-one-len] of myself]9 J {$ V5 v# D
[
/ \. K1 J) O' R" t1 a6 }set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
! t V7 _: g8 C2 `; S. nset i/ S4 r+ U6 ]7 w( a E& j. |
( i + 1)) A7 h1 `9 q ^# i0 C( w. I
]
7 U0 E- P; i% P; A0 E. vlet j 3
% p, V4 J0 l: v% x* slet sum-money 0
; R+ L+ U0 y) Xwhile[j < [trade-record-one-len] of myself]
2 {" l9 Y9 ^/ R2 O[8 l9 P9 S& r) i; M- ]& g. d1 m
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)
+ k+ q2 V2 s: R7 w2 l$ r5 fset j
5 X" s, T5 {" X5 K& P( j + 1)
' P) N6 R! E* J' k" K3 p8 Y]
% A4 t) @$ Q3 S* y4 R/ Plet k 3" ]2 C: f! b# y9 C# a7 _ @0 Y" s
let power 0' e5 y) x' k! X
let local 0
" A2 E1 k4 K" ?( Q% pwhile [k <[trade-record-one-len] of myself]
8 Y& q( U- d, X[9 }, l$ s1 o: t- c& s# 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) : {$ I4 t% H# F* ^
set k (k + 1)2 N# p! o3 C; Y: @5 x; U
]- a8 |( K3 }7 l6 G6 E3 O! b4 P% c
set [local-reputation] of myself (local)
# ~7 |6 U3 t) R; hend
; ~2 Q M1 W; c
: |. h/ V9 o" c" U5 D7 `to update-neighbor-total
7 W! M- r0 i8 l- U' A7 @# i
4 ?5 p+ `4 Q" c& wif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]4 o w* f; |' T- ^
2 G- V% o7 ?* J0 R6 c3 P0 y+ p& [
& \1 W- u/ j- o, I4 U, Dend
9 X+ F: ? R' m( b
1 Q9 G! q3 j R1 yto update-credibility-ijl 8 i8 P7 x$ I' h0 J* U V4 y
5 d# a) p! A" y$ l" M) h" m8 O; F;;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。: n% i3 Y8 r. D
let l 0
6 f' y% _! ^' D* l: e7 K! f4 qwhile[ l < people ]
/ d0 @+ v4 s6 k: C: ?;;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7 S. _, `6 G5 K+ H5 t
[2 H4 O* I [# l) {& F
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 f3 ^! h/ j& a' h0 Sif (trade-record-one-j-l-len > 3)! p$ z2 U- k5 n# Y' M* x7 I" B
[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
i% _3 C0 Z% r+ G: `1 ulet i 3- L; K9 f1 P4 [; W$ o
let sum-time 0
5 H! ^ n# m8 m$ L6 e% jwhile[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
3 S1 u5 J8 ^! p0 `1 N( [/ ?* @: fset i
$ x! x" r9 `. D5 @0 R ~' M( i + 1)* i8 X) P5 P h. W
]- I1 C/ ?0 P5 T) s7 Q/ t
let credibility-i-j-l 0
8 Z: l/ G" u2 \1 H: r2 I8 ];;i评价(j对jl的评价)
- b, g4 @# u" Q, xlet j 3& z( b1 D4 G8 F
let k 4& e9 o* Y# z( Y' M6 o' E p
while[j < trade-record-one-len]
; l& f+ O# w2 C0 s# R7 f+ W# X+ w[
% e- _( Z6 ]9 [" K$ a$ fwhile [((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" l* C! A7 |' Z Z& `
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)
% o- O3 {! R. ^% yset j8 [2 Y0 r9 u- \7 O8 R
( j + 1)
0 |) D# X! B9 @]
- w& ?- T! w9 eset [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 )) P' S3 \/ H Z. P" R: r
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))# V8 i2 v& Q! E
;;及时更新i对l的评价质量的评价
3 R" W/ @* }8 ?9 P( Y! l8 xset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' O. E; Z2 G" j2 q1 z- Dset l (l + 1)
, M6 u' ~* K. z( L: u5 a5 a: l7 |5 d/ O]2 T, \9 I1 ?0 ?5 U. S k. V
end
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to update-credibility-list
/ ~2 y8 D% W* Z' a& plet i 0
/ x+ I# D0 T' x: U$ _% lwhile[i < people]. o+ w) I, M% [% I9 p; _7 Z
[! `; }6 C# f: g! L a3 c& h
let j 0
# j- ^3 Z* d+ n/ @- Ulet note 0# R2 ^. j; N; G- i) c7 M
let k 0; @# I; B9 B, `2 z, t+ M0 Q9 ]
;;计作出过评价的邻居节点的数目
5 t0 u: R; `% y; K w9 d9 R3 Jwhile[j < people]2 x+ G q2 `- ~5 @1 C
[$ P5 X' ]' X: M' H. V2 H
if (item j( [credibility] of turtle (i + 1)) != -1)
; ^7 S) L5 A @' S;;判断是否给本turtle的评价质量做出过评价的节点1 T' V v" P% B* e4 o" I% ?
[set note (note + item j ([credibility]of turtle (i + 1)))7 B5 g- a6 {/ ?( P8 }
;;*(exp (-(people - 2)))/(people - 2))]
( X1 |1 ~' A" a' U4 J$ ]; @set k (k + 1)
, x0 [( H( o) @/ C]
1 U1 A0 `% a2 [9 j+ B( Yset j (j + 1)8 T: F1 i+ T6 @
]' e0 Y4 l; y6 i. `1 \* `1 f
set note (note *(exp (- (1 / k)))/ k)5 n" I& D) X6 [ D
set credibility-list (replace-item i credibility-list note)9 \% K1 G* G, f+ Z' `$ }$ b: a
set i (i + 1)& p6 u$ f0 D. K: _6 b9 n9 @
]
& z/ f6 h- s& [5 Vend) n/ y2 \' y3 l- c+ x
8 J! P; W0 N" j7 f. M# |6 nto update-global-reputation-list, W: [6 Z* L* S: T
let j 0( O+ E3 ^5 w6 i( ]
while[j < people]8 K- {2 u$ c* k5 Y) x3 f* ~; B; z
[; P5 ?" v* k" F
let new 03 j% I7 L+ g- ~% g+ g
;;暂存新的一个全局声誉# }: L5 S' P/ ^# Z3 i, {6 `% x
let i 0
8 l: Y* y8 I6 k, a, D% O+ a: s' Slet sum-money 0# o, P" |9 {& X, R% J7 p
let credibility-money 0
+ h$ f$ A2 ^2 W, K, L4 }while [i < people]
9 v, K; o! z/ Z' W* j, T% i3 l/ V R[
2 a+ p2 x/ m I6 f2 o/ X- `! Iset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
5 y! a& G/ R2 s; n% bset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
; `! A C% Y6 I) Y% \$ d! Iset i (i + 1)
5 X( Y# j8 p2 w! ?) R% H& o4 p! r]0 K! K% K1 p m- l* z6 U
let k 0+ }! v1 \2 S; f( E1 o5 j( d; L% h, E
let new1 07 k7 p) n8 N! ~, f; I% u
while [k < people]7 E) g3 m: a X# o
[6 y* t2 q, s7 n$ m
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)
5 c7 v$ k& O7 yset k (k + 1)8 ?; J& E$ ~: B* }
]# t+ t5 O+ c8 t- F
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 7 O) B7 C+ `' [2 }8 e$ S3 Y& j" c
set global-reputation-list (replace-item j global-reputation-list new)# P! t/ O8 q. N* Y" ~7 S
set j (j + 1)
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! f8 R& c; ]0 U* m- d9 H, yend7 \+ |7 m- C& B v
; A$ s2 K6 a. t$ Y2 b
# |) A g7 ?& q- P; n2 Y5 o& `. P0 V: x
6 q2 s6 E% z( g8 T3 o! T% ?to get-color: u% X: C$ @3 Y2 F# i
" e9 ]% x3 o" ?0 D1 o
set color blue- W W' E4 b3 {% J8 G" s5 x
end
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- C' B+ `/ D3 v. ?3 o1 e$ {" xto poll-class4 g5 t7 P( ]+ L2 y, P) }. U
end
. ~3 J1 |% ]7 v {) v; r$ D6 J# C. W2 l) ^
to setup-plot1
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set-current-plot "Trends-of-Local-reputation"5 i* F: D9 o# a3 P/ @4 r
1 ~3 P* Y3 H1 O0 _
set-plot-x-range 0 xmax5 V* f- F: l8 B: z# R2 Y6 O
0 q8 Z+ ]3 ^- f; {
set-plot-y-range 0.0 ymax
" m5 Z+ j5 ?1 l& J; eend
' G2 J5 I- A: A9 \. F
, c4 c7 d [/ h: Gto setup-plot2
- O& e4 u1 X6 \! p: v: [$ Y7 o3 X5 S. P& }; I( {" M
set-current-plot "Trends-of-global-reputation"
9 m/ h5 f# {: q( \' ^
9 L- V0 j s& Q* _set-plot-x-range 0 xmax6 ^4 {( ^8 K* h* |
1 A3 \) j: j) e' i8 Zset-plot-y-range 0.0 ymax+ d; w6 H$ k3 y0 y6 Q/ L
end: B" E: X% e1 d# `
1 Z( f% T8 A5 Z) v3 x! fto setup-plot3& I: O+ D/ y/ K/ W
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set-current-plot "Trends-of-credibility". P) v$ p( J) h; _& H% L1 o
2 [& {! [3 G1 d L9 w# z n
set-plot-x-range 0 xmax7 i4 g% |1 @6 V6 b3 ^
, l4 h) {$ o+ m7 {& F, d- P7 e) p) t( @
set-plot-y-range 0.0 ymax
$ `9 T: q: b( x. D5 ]end6 C) v# R2 a6 C
j6 }' Y4 ~9 Y G& }7 V2 p
to do-plots
9 b# }2 S7 \' g" xset-current-plot "Trends-of-Local-reputation"
9 a- Y) Z5 y3 \; A1 hset-current-plot-pen "Honest service"
\' J$ Y. O& C0 u5 Qend# w2 ^0 q; x2 z, o& s
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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