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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
# a( v3 L2 N' t' Q8 {1 Sglobals[6 o# F1 N# U! X) y ^, k, G# c
xmax
1 T: V$ X/ n9 a- [/ d2 @; nymax& b5 G( A* ~+ X' |
global-reputation-list
& f6 O% n3 S* {& p5 \. l+ L5 J" }! l) K" j6 Q6 G+ A! s6 C; a: C
;;每一个turtle的全局声誉都存在此LIST中% |% a; w9 a# E0 ?' x$ w! v
credibility-list/ a( c# Y# I) v, s
;;每一个turtle的评价可信度
! J" g; c/ U2 m: nhonest-service
( B) W* I w6 f3 \/ _unhonest-service& e# g: H/ d! Y# X: v# s' d" t
oscillation2 e' X. Z% N% T/ q5 f3 L$ u. e
rand-dynamic, ] {; ~4 r8 N, H' M+ A
]
/ S& g0 |& B$ E d% h1 r& F2 F* W9 l# Z$ x% l7 M9 V! H
turtles-own[/ v. g& G/ x& s. L
trade-record-all
7 Y+ F. ~, s' c) ]; L0 s;;a list of lists,由trade-record-one组成
' U% q; S3 R: f9 _# ^+ ^trade-record-one% R- t9 m& m2 X% _/ c
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
9 u" n6 y: K: ^& d, }! c: d. F
9 d! p/ w7 N, J6 ~3 i7 u;;[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]]
( i& r7 T6 f" l4 M( L9 x5 p V, C9 {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]
# i6 \: C. E# S) ?$ b$ T6 c# @' Lcredibility-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list7 B' M# H+ \4 W: [9 V7 n( x
neighbor-total7 y( A: j4 c) H) T9 T
;;记录该turtle的邻居节点的数目' ?: p A0 P, D$ b/ Q; |3 N9 d7 z8 ]
trade-time* b' ?6 M3 ]# ~. X# |
;;当前发生交易的turtle的交易时间
1 q3 b# G- {/ `' _, uappraise-give, N4 T1 ]4 D; h
;;当前发生交易时给出的评价) ]8 q6 q/ E- ?( v" K* b3 k
appraise-receive
6 Z1 D% K- |9 Y" y& w/ q1 z;;当前发生交易时收到的评价7 ~& Z' V \2 |/ m
appraise-time
/ C0 p+ _1 T! H- b5 b; | ];;当前发生交易时的评价时间
0 P" Y/ _; h: L+ ?& Q) {local-reputation-now;;此次交易后相对于对方turtle的局部声誉6 o- u; V! W0 {
trade-times-total7 a$ x9 C: ^# q: j8 U
;;与当前turtle的交易总次数
& ]( i3 I" _! B% {$ Atrade-money-total; n9 U, G) Y# q
;;与当前turtle的交易总金额
* U+ e# i7 p$ y; |" p$ h/ Olocal-reputation
+ u+ w3 T/ r% P/ K% z7 c( ^2 pglobal-reputation, L+ P' @1 g1 f8 X2 |7 U; K: w! g
credibility
6 [' G' G p0 }, e2 ^;;评价可信度,每次交易后都需要更新
9 t/ m( J) a3 D. }. Ycredibility-all
4 i. t6 V6 X: z: t& 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* ]3 a2 }/ [ L" @& D
7 y. I1 H0 e7 z3 B6 i' r3 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
t) B+ ~7 S0 x# G* `# N2 b; Tcredibility-one g* M/ \9 ]% [" J
;;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6 y- ?$ Y: o2 U- b5 w# p. o j; B( h
global-proportion
/ K% a0 k6 a) K! w) tcustomer/ }# b+ p* w! h5 k% @9 ?& R6 T
customer-no
3 D, I" x! R, w; M; }% r) ptrust-ok
. ]( k% C7 B/ C8 J3 M% ]4 dtrade-record-one-len;;trade-record-one的长度8 ~( `- f. q7 B
]
7 r n( V7 ~# J" m2 \3 T' [: N }# ?; r4 `! D+ H
;;setup procedure+ b# ?! M* x" @* @8 L$ J* ^' R! T
+ z- z& T+ y, J
to setup2 |. m4 |8 I& S" [% Z7 M: S: b
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ca1 H( d$ c U$ f$ o1 D( d( L
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initialize-settings' E6 F6 m+ \# e" R
$ k t" |+ i8 k- R% dcrt people [setup-turtles]
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reset-timer# p2 R6 H0 G i( N
. h1 _0 P- T. T7 J w( E# H
poll-class
8 H3 c6 |/ p2 b5 e# R! S) x" b" b$ d0 ^4 D
setup-plots
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do-plots$ s# s: W, C6 A" Z' d. m
end C- A8 Q" q5 w+ Y# [
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to initialize-settings
; P `( s+ e0 n% ]; q" k' C" S, B" u. }. l- u0 w
set global-reputation-list []
) F9 K. N% o( A5 f6 ?) L" r& p
3 m( p% K: t5 P4 Yset credibility-list n-values people [0.5]
- c6 ]5 n% Q) {, B1 d$ Z9 L3 v% s6 r! k8 T# y( i
set honest-service 0
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set unhonest-service 01 p3 ]" e$ Q- f* I1 S0 [8 b
( ~/ s }2 F9 C4 C7 q# b
set oscillation 04 _2 ^& R0 n7 E7 Y
; H6 F! ^% L7 C
set rand-dynamic 0+ N( N9 L. @9 }, B3 F- f+ [
end
% @) S7 A5 S( h* ~0 I/ I. o1 I% p8 A
to setup-turtles
% z. G" `, b# j% f' ^6 T$ A* _set shape "person"6 {7 x) `# g2 C6 g( ^6 O
setxy random-xcor random-ycor( l: K( ~$ ^9 s+ O( A
set trade-record-one []
& O2 C: U& U3 o) S Y) O6 s' i
1 m$ G2 u5 N0 O1 |1 N: Hset trade-record-all n-values people [(list (? + 1) 0 0)] , C" h6 W0 v5 D+ g2 K
: Y8 k# t% i% t+ S4 @
set trade-record-current []! M# F& t2 e, b4 R B
set credibility-receive []
- l8 Y6 y' _3 @+ }- R* aset local-reputation 0.5
( q( S& a+ v/ W' [set neighbor-total 0
# [6 j* Y D5 c- eset trade-times-total 0
5 Q7 L% j# l& `) C! m" tset trade-money-total 0
7 }: @; A5 V8 f' J& f' I4 Cset customer nobody
' u! R6 A8 J8 k1 U& t( cset credibility-all n-values people [creat-credibility]0 }7 t8 q% [. ~9 K( W5 Z6 c- S6 |
set credibility n-values people [-1]7 z( m/ U5 x, J. i- z$ b3 @. R+ d% R
get-color4 P. i8 d# `; A T( r$ i
& A* c- I* Z6 U; f
end
6 G: {8 ?# P7 V% ?4 p5 L& \0 l
7 @+ i0 w; @! Eto-report creat-credibility
% \$ u- k. X: e" F2 Vreport n-values people [0.5]- S7 Y. Q; x. ~- o2 @+ e1 V
end
4 d+ [6 P4 `9 n! v% w/ I- y! k9 n8 }' b! \' ]2 W8 l
to setup-plots
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set xmax 30. E) w6 n# _- J
+ Z" a3 e: Z2 pset ymax 1.00 D* x9 e: G, ]. T9 c( w
, U$ e3 s! X0 f* m( E9 ^4 t
clear-all-plots
2 h( b6 v/ _+ x, b6 s9 J. h' o' @
: a0 M/ T8 J2 m* I% s0 r U+ i) T: t% ^setup-plot17 m1 R& x2 R' J8 d% C3 C
0 Q0 l/ n/ B. {+ r0 _
setup-plot27 g% e, p4 s. j5 Y5 p
1 e. V; d+ t- |% S
setup-plot3
2 q' t* n J E; e) Rend* W& M& z1 d: _' Y# W* e7 [
" p# Y+ w7 n; N3 A
;;run time procedures0 w: |4 E% Q o+ b
8 R0 O% ^- x* [* {1 vto go
: y N8 M: [4 L, ^! w' v2 ?) ~7 T7 V
. R5 s$ n/ M, p0 vask turtles [do-business]8 E: w" W6 U; D) o
end) z1 _9 ~+ v+ y$ u1 E* T
- p/ v9 c$ ?8 Gto do-business + \$ r/ h/ k9 M p
, T2 ?$ M. K& i
0 ]7 M; a' p3 Z! ^2 Z4 p/ K
rt random 360
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fd 1/ g, m! U$ R/ j& Q ]/ r
; @/ y/ p# G+ G/ A% h. h
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here' R# ]% v8 @7 t8 ^+ v$ \' x5 g
) V8 t) q' z# W- {5 d* }
;; set [customer] of customer myself4 g0 D' ~4 _9 G; f/ a
( q, V0 K2 y# V1 D C" c3 {* s0 c# B+ Qset [trade-record-one] of self item (([who] of customer) - 1)
6 a& V: {5 N* s9 @) T4 ~[trade-record-all]of self, n; E6 L. t% j4 C/ q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)3 f$ V0 O! P, h2 J5 i
[trade-record-all]of customer
% o' j' I- v+ _
& @3 I5 T1 |4 G; |set [trade-record-one-len] of self length [trade-record-one] of self! L9 M1 x( [$ W$ ?% N3 l" h
4 _4 H; h2 p6 ]# Q4 w) h
set trade-record-current( list (timer) (random money-upper-limit))/ B! W* Y/ F( m( D: P3 m
1 M/ H3 r) S* T& _3 vask self [do-trust]8 b1 y7 [! @5 w1 R! ]* S2 v N
;;先求i对j的信任度! v& E. P$ d: l2 L; T
1 Z/ E# J3 r/ ~, F
if ([trust-ok] of self)
2 X3 n$ Y4 I2 }/ P8 ^;;根据i对j的信任度来决定是否与j进行交易[" a/ g) T! }$ ]9 i1 N/ \; `( o9 r
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
$ y$ Y; V8 y% Y9 a c9 u6 D S8 w$ s$ f% @' @. U a
[% F9 m& P4 C. f! b7 s# |
# j+ }& h ~# ^' jdo-trade6 k1 L7 i/ h" S0 h9 W/ g
' ?8 {) ^8 N3 r" C% s4 n
update-credibility-ijl
& \2 A( K+ ^! f4 G1 s6 r3 U# d/ `& e# M) W" ?! V5 E2 D
update-credibility-list7 `9 ], W& J5 X* _! X
/ s9 P6 z" Z* d7 m1 V
# [5 S) v9 E: p3 ?% o) ~- bupdate-global-reputation-list1 o) N/ x/ z# c7 t4 B
' l* e# R0 w6 A7 X9 ]
poll-class
5 }; O6 R- Q0 ?, F( ^( @$ q& T6 F6 n8 q; L4 M3 W! i1 n
get-color0 J+ v3 R2 z! D% z6 ]) P
- g8 e0 m% |6 S# [
]]$ U% H0 x3 h. h
4 O, k5 H5 L! K# p' I" I9 \4 K;;如果所得的信任度满足条件,则进行交易
6 @& i7 w- V9 b5 n- b
# K: B; S9 j) D' n8 {- Q/ z[
/ v; I3 `9 C& P. A5 `7 m1 W5 s2 R: i8 M. W( Z- r* A. A
rt random 3607 c* Z6 k. j6 Q! l7 F' c
! x. O5 R2 z" Wfd 13 W7 [& `( {8 {( I
3 I1 k. z- |8 ]]0 c" D9 u+ b- P. L7 W8 l
6 C8 @! N2 E6 s3 h' E$ Y- K
end+ J+ b$ v- X$ n- o6 Z
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to do-trust
! D5 {9 E( y- [1 w4 G) ~set trust-ok False
( O8 V$ O# e6 q# f" p+ I% V
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2 [: B# a* }6 z; p5 Rlet max-trade-times 08 E- c: ?- A& N. |
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
G N: K5 T, ]3 ~$ S; |; Ilet max-trade-money 05 V3 K8 g: [0 b6 Y; L
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]* ?& G5 ^% e4 v, S
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))+ q. j0 f2 _. w. P! i* p
2 i% ?9 A( |/ ?: q+ b4 k1 P
9 J/ Z$ c. `3 f2 f) [2 o
get-global-proportion/ d1 R ~5 A$ w: ^# k- d- M" \
let trust-value# b: }' F' A" h$ m* c% 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)5 W! X$ f4 I- D1 Z' ?/ s2 i
if(trust-value > trade-trust-value) _' J0 M; ?5 R- c( g) y
[set trust-ok true]
' c+ }/ Z$ L6 f: }) Q0 Aend
. Q* }0 K s5 p! S% B
1 U0 I$ m A) a/ Q. R9 z6 b) Bto get-global-proportion4 ~, r; N) \1 ~0 Y3 G) w; Y
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
0 }9 z9 t; `+ \7 W. D[set global-proportion 0]
4 _: N* G/ m. v+ @[let i 0
/ z( s! W6 i2 F- V( D2 `& g% tlet sum-money 0
$ X2 `% k) A% y+ qwhile[ i < people]8 g% x ~1 T, U N8 N- i
[
# C5 n6 E8 D' O, O Q7 |0 \9 Xif( length (item i
% w: u; R( H: p5 `& v$ G2 C[trade-record-all] of customer) > 3 )
! V, z$ B: X. b6 U% U[
" P" c D1 p7 o, L& I3 `8 Fset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
! [' I. L' o3 R) Z" []: o! Q. X. |8 ?5 Y
]
) i4 h* G/ J/ h7 E7 _: ~let j 0
' {! U0 ?6 w% ^let note 0& b( u$ p/ z# W* n* ?. D3 G+ Q
while[ j < people]
4 D, p$ r( E9 G* q/ R[9 @ T7 l9 `/ ^9 h
if( length (item i
5 Q0 S k" q3 L6 h4 y[trade-record-all] of customer) > 3 )# L ]5 s4 k% x, `0 f! w4 B
[
- R9 {5 k2 w+ N8 Difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
$ t' u" {2 ~9 B+ w, Q4 ][set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
! P1 j7 h5 W# S1 Y) Z8 _: c% r) {( D[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' `' U( Y! r5 M: R5 t]
% g. L2 V1 ~- Z% _- i9 |1 _]
! E( D2 `8 b K, d& f' a. Bset global-proportion note* B K' ~" U$ Z7 X) D+ S
]
$ P/ u, D8 a! Y1 }! \end
5 C% s: q: z& b* U: W
2 J$ f8 [" i" n# xto do-trade! ]( G q2 D7 T" e
;;这个过程实际上是给双方作出评价的过程7 q/ h( g$ j% R4 I' |, C9 X6 [
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
" W Q' E, D# O2 |$ F0 b- l0 ?1 yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
8 v7 Q2 z! ]/ \$ S: Rset trade-record-current lput(timer) trade-record-current
% ~1 F0 h6 m0 X$ Y/ x) _2 d;;评价时间
% `0 f+ b8 G4 Vask myself [
( U+ \6 ~; M3 }( Z; p; oupdate-local-reputation
! Y4 m1 n3 X0 E7 A! o9 J& p, rset trade-record-current lput([local-reputation] of myself) trade-record-current
0 z8 G- ?2 w- _ O/ L]. h2 E" `' H6 T3 p( Q& J
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
# H( s, V/ K" a5 W, c9 |( `;;将此次交易的记录加入到trade-record-one中9 F8 [4 o; V/ v9 l: D3 o0 O
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)7 F) r8 N3 k8 ~* g
let note (item 2 trade-record-current )1 B, Y( f3 G2 `; Y
set trade-record-current
2 o, a: P. V) e. U1 u4 J# T(replace-item 2 trade-record-current (item 3 trade-record-current)), W$ C$ J1 e6 s5 A& t4 [* F) z
set trade-record-current
% S/ z" V5 D0 X3 H( f: i8 w3 n- C+ n(replace-item 3 trade-record-current note)
9 u4 f0 \ q& w" K/ t% B5 R
" g: `3 Q: }8 X3 z' U$ u ~# T- K7 _8 i8 L1 o
ask customer [
% Q+ P# i w$ d; M0 Nupdate-local-reputation
5 c; b# V* d- ]set trade-record-current& Z& }0 z' e/ ?6 s8 I' [ o# O% |" e
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ' W- Q E% e6 ^; E) v3 I; q5 w
]
. a4 r n# |* Y1 n# S& P1 N# f( T$ Q; R
! ~0 H6 b7 ^- _' P+ b% uset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
" k: u% o# m% `' S! W/ R: N6 X- _+ R8 Z* ^- v
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! K- a* U7 D: g3 q, l1 m; U
;;将此次交易的记录加入到customer的trade-record-all中
/ M6 f6 N, |3 H4 d2 j: [* n. ?end) [; h4 _. k' N# K+ _9 L6 E
a+ _ P+ i) H: |to update-local-reputation
. k, o3 N' D) C$ {! p0 Oset [trade-record-one-len] of myself length [trade-record-one] of myself8 L2 u3 t* u3 B" B: [( E$ F
0 h$ z5 M, s3 v/ @& e; C
6 W, P H, o% J
;;if [trade-record-one-len] of myself > 3 - i8 W4 O3 S8 O; l/ u2 ]
update-neighbor-total
$ Y& r6 J+ l: U;;更新邻居节点的数目,在此进行. H& {0 K% {! b' }
let i 3
: s- X$ q+ s+ E* Dlet sum-time 0
$ G" Z( d' @) g! I0 D/ Kwhile[i < [trade-record-one-len] of myself]
) U& g; F; B! K; c[8 F3 Y$ i5 N! i$ Y
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )/ W; L( V& W, [/ r
set i
, Q6 g5 X( k3 k$ X( i + 1)
, {3 g! F5 ]$ X s9 a9 T9 s8 d]; `, W0 d5 f6 M5 C: \ D
let j 3# G; D6 C! {4 o3 |( q6 [
let sum-money 04 T9 b& z) O: \0 e6 b
while[j < [trade-record-one-len] of myself]
f' L) @( ?7 L( p. B4 Y* Q[
/ e6 E4 q, X( B- R' Z3 iset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
) v' R. y& o& E0 ?& @) M9 `9 qset j
9 S0 z# I, e. h% R3 O& U" A) C/ L6 b( j + 1)
5 ]5 \5 g% j; G- M# d a]
( W" `3 h1 X8 l$ G7 B. X/ ^8 I) Zlet k 3
3 t) |; F9 p& k. B/ G, Ylet power 0" h4 |: k8 V4 o; Z4 R" t5 k
let local 0
% }9 E& t7 w* j4 a+ H0 D( Swhile [k <[trade-record-one-len] of myself]
, S& ?0 q. l2 H3 e7 a+ q, j[
5 C; c% C0 J; d# _ N nset 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) ( q, y* T; U" ?, S# Y9 d9 Y
set k (k + 1)
' \" p7 y: p9 Q2 l6 ^]
7 h4 a" l9 C6 c) \8 Pset [local-reputation] of myself (local)
" O5 x! c0 S( Z4 z. C3 c5 W1 \end+ w* C6 g/ y8 X: a
/ g8 a% I6 y; U9 |4 f8 M
to update-neighbor-total! W) U) l1 t' C% s5 s
- e _: _+ V+ Zif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
/ B1 t1 {+ x! ?9 T" o r8 [% b8 H" T U
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end
3 V) ^. [# S u6 t8 v g: q& Z7 I3 F4 Q5 T3 W
to update-credibility-ijl $ z {. L1 S5 V3 L3 Y3 n( @) X
# b3 v7 L* y. ~& s+ a) d6 s;;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。
0 }1 c: j9 k! \4 C" u; Klet l 0
9 Q' y7 P$ O& z2 W4 q3 j) Ywhile[ l < people ]
$ `: D" ^; B: \* T6 v;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 d. [; h. u* [* M5 Y2 ~if (trade-record-one-j-l-len > 3)
- O/ j+ g4 t3 Z) ~" c[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
2 P/ h2 L, U9 o4 C* R1 Blet i 3
# V" m R8 r* ]- P* B3 z( Slet sum-time 0
3 E- `. ] K' uwhile[i < trade-record-one-len]
7 n" @ H6 ?. h: f" w" V0 k[$ t8 S5 H0 R6 d9 d) J/ u o) N, S
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )" Y; E3 P7 q, q V6 D
set i* w9 Z9 k. N* f1 ~7 r3 w
( i + 1)
0 s# H/ p* a9 e8 k$ k) z1 Y. }3 |4 Z]3 C y; v& A3 ], @; e
let credibility-i-j-l 0
. j& z& r9 e' S' U& u4 V;;i评价(j对jl的评价)
4 a( o- H5 U- R2 {4 ulet j 36 `% E9 _; D* j+ ]# J) ^
let k 4+ t* W0 I% k' f/ _4 u
while[j < trade-record-one-len]9 s$ O' p( R9 E7 ]
[
' z W v8 e9 P0 p- Q( zwhile [((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. e2 Q$ Y" j. c, s. Q% ~4 W( s
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 [' D8 X( v% n# d8 p* t. p
set j
! `: U, C& f5 Q' J d( j + 1)
m' O& P& w8 s2 U- `]1 h: e+ _5 B. ?/ m# U# A' l% x
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 ))
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( k$ s* i6 N/ X" l5 I6 }3 {" M v2 k- H C* I* N
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))5 m, _, t5 r/ m- V) p
;;及时更新i对l的评价质量的评价1 f1 s7 ?& W' u" {+ ~: f0 [( }0 N
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]' o8 p5 X0 L. Y X4 h4 D
set l (l + 1)
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end
' [# t; q7 o9 Q* w: i9 P
( W2 d5 \4 {+ J, G4 f$ [: kto update-credibility-list- l; i: `# b. [
let i 0
' d4 I4 u6 i( `4 awhile[i < people]5 {4 j) t6 j% B
[
Q% r2 g- M* i, d: I7 f3 rlet j 0) M+ U3 A& @- N7 g U6 H5 ~
let note 0
6 D% ~0 l" @* m5 }let k 0
) i6 M& `" p, x;;计作出过评价的邻居节点的数目% R2 ^0 W2 b' i
while[j < people]
0 j) `, N0 e! R- H: D[4 e* F# z0 n" g* F5 \) A
if (item j( [credibility] of turtle (i + 1)) != -1)
" C7 _) c7 O& g- d8 W u; p& g- h/ h;;判断是否给本turtle的评价质量做出过评价的节点
?5 v E9 O0 D f/ ][set note (note + item j ([credibility]of turtle (i + 1)))
: l9 d b. r. r) c& ?! L;;*(exp (-(people - 2)))/(people - 2))]
8 w; U' L; p. I5 g* ?+ x2 tset k (k + 1)) @9 M$ W" V1 Y. D
]
& K; d( R% ^& k, tset j (j + 1)
/ }6 c! \0 m" @]
5 V$ N5 f/ M) _4 R% o) mset note (note *(exp (- (1 / k)))/ k)
' Q2 F w5 U |/ l2 mset credibility-list (replace-item i credibility-list note)9 \' F6 _% F! U% z3 u% }' A
set i (i + 1)2 B9 t# c7 t' u
] t2 {) V/ T# g
end
- M& i4 L2 N3 v
. I2 o0 N; w3 c, h" L6 D( [to update-global-reputation-list
4 s3 P5 l9 z+ L0 i! P0 f/ }let j 06 d; _# |4 F4 B2 { C! H4 t2 e
while[j < people]# e, m8 ~1 K% {$ T6 ^4 W7 B* B
[, |* V- l- q. X9 ?" m' }" S9 x
let new 0; V9 s& s7 `7 o' l; r# m
;;暂存新的一个全局声誉$ T1 G/ v: r0 U4 \# G
let i 0
. `9 M4 x# q' [5 O; a- K0 qlet sum-money 06 L9 F, k8 V; k7 q' v) t' @
let credibility-money 07 ^; [& y9 R, d, D1 L- i8 f2 v
while [i < people]/ v L1 u. A- E: V
[
* ?9 B$ ?8 X3 p, Zset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
* ~! i# k' H( @ h, a$ L$ A {set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
. ^! Q4 k, B2 p# }- \6 \set i (i + 1)) y4 w3 U4 D3 |/ b
]
: G& w0 N# u# zlet k 0; H, T* H% d4 j- E, F' ~
let new1 0
Q* @. c5 R- l# g( gwhile [k < people]
( o1 G, X d. y# p c[8 U' ]5 ]8 W# q% O1 d
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)
$ m. B8 a. D/ x9 h5 L, h9 {set k (k + 1); W; A$ h8 G& Y- G" q
]
% @1 R6 [9 V/ n% Hset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) & z- Z( Q6 L4 x. a" X Z" v
set global-reputation-list (replace-item j global-reputation-list new)4 F; s( v2 k" X! G
set j (j + 1)
! d4 D5 l0 y5 w! O]
, y; q, }; d# v0 Oend
+ H9 E1 }' h. i7 Z' ?2 b4 R( K! W; ^+ u- X/ [
; h3 R/ r3 L0 m/ V; b* `5 B0 d. U2 U6 I/ |6 i# o0 ^0 l
to get-color3 A5 h: O; u% |& H' q% K
: I0 J4 ^" Z/ D5 Jset color blue) d; r- _3 S4 E, d1 p
end) G$ B9 N! b, A5 ?. w/ l
2 j+ o+ `+ @+ W, {. gto poll-class
5 @8 Y9 q P& h% z% Dend7 D. N0 i% y7 y6 ]: ~" G) l, P% C
: e1 J! a, X* L* o( bto setup-plot1) l2 M9 b+ C( B* U3 O* I! e# w0 d
x& l; T/ |9 k
set-current-plot "Trends-of-Local-reputation"! T8 }# u4 n& V9 E6 q
- l& m7 z) z( o
set-plot-x-range 0 xmax" \+ o/ S6 S z
5 O5 R: W) }) l7 ]+ i2 e- f/ W
set-plot-y-range 0.0 ymax
# d4 o' I2 J) o; t+ l; zend
1 O. L" O& f Z$ \: F5 a
+ G1 h- r/ ^' tto setup-plot2
" U+ Z2 k+ D4 f; A, m& m5 u! R: k" c8 q5 m5 ?3 c
set-current-plot "Trends-of-global-reputation"
7 B9 d& x# W$ w: a; u* j: S1 ]& E6 |0 b4 l+ h6 Q7 V
set-plot-x-range 0 xmax
7 A* j' H+ n$ c% s% E ^2 W1 d2 Z* j! b+ W' k- H3 E
set-plot-y-range 0.0 ymax
( i8 N n, u, ?# V! e; r2 V. vend; l1 h6 Z( d: [5 F4 u7 J
$ I& d: y* t* E. p
to setup-plot3
5 v) M" M' _4 ?. B) I; ?) y& e. Z5 X4 n. j3 b- U& [
set-current-plot "Trends-of-credibility"6 ?! }8 Y1 ]) J+ r3 |$ O- m# i, @8 {
- V! p9 t6 E" h! s$ S' E6 }- y
set-plot-x-range 0 xmax/ ]6 v% v) \. _4 [4 x: s& ~
/ M/ I+ C; W! { g8 Z7 `; ]/ j: ~! E2 G
set-plot-y-range 0.0 ymax
3 b) W" b5 X7 g0 x' Lend
& m0 p/ o0 o# z/ R0 R7 u/ {% r4 Q
to do-plots
( z' C4 o- M3 y/ _( t8 vset-current-plot "Trends-of-Local-reputation"
( i/ A7 O ]* \1 P# {. d1 f2 O/ T# eset-current-plot-pen "Honest service"' ?1 E: W' D; F, ^/ ]( |
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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