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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
" ^1 @; M% n5 w/ J9 o7 |3 T9 sglobals[
3 c6 ^2 k" L1 L- T1 b. L, D/ D& Fxmax
+ J+ z# I i% d2 fymax
5 B1 x& ^# a0 B8 T4 h) R4 b; P: v/ Eglobal-reputation-list
8 D! r4 b- v& g6 o; v
& @) l) E: {, [' |2 s;;每一个turtle的全局声誉都存在此LIST中( s; b5 C7 g l7 t* K; R& D
credibility-list) N3 k. S( p8 P
;;每一个turtle的评价可信度
% W' t! I: V3 H" f4 S8 a- hhonest-service
# g) |! a, h8 U+ Funhonest-service o) V; }, b- ~
oscillation
4 K+ ]& m& H& n! n2 N. `rand-dynamic3 [9 w- w/ e2 j( f2 W7 y2 g
]
@% y$ z/ |* B* G6 y( ?/ P; l3 {+ z" L! c
turtles-own[
+ z* U3 V7 l+ G! \" Dtrade-record-all; z6 L3 P& F; ^
;;a list of lists,由trade-record-one组成/ `: X( B0 ~6 P7 |) L
trade-record-one' n: H( k0 J6 B! X! L( D
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录 B. t+ \+ u6 L5 }% ~% I
3 H5 F( C# D- q1 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]]
8 i1 J9 p8 F% J% Y3 etrade-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]: R; A/ X+ a2 w7 `4 x, r9 k A
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
1 L2 G9 w5 \6 |1 W* hneighbor-total9 p0 N, C& r r* Z- l$ e
;;记录该turtle的邻居节点的数目& ~, l d1 Y! {( Q M
trade-time
3 C* a. c4 N7 |& e;;当前发生交易的turtle的交易时间
d3 z; q/ B }6 v; b- f5 O# o3 Tappraise-give& X, ^1 p8 T- q& `( R! w
;;当前发生交易时给出的评价7 T0 L8 I* Y) j) a, ^
appraise-receive
- n: j2 _* U" {;;当前发生交易时收到的评价# g6 C7 _4 M% W+ r9 m( ^
appraise-time* _! @" L9 A6 q2 ~, k) \
;;当前发生交易时的评价时间
" S7 h0 h3 A' c3 b/ G( `# glocal-reputation-now;;此次交易后相对于对方turtle的局部声誉' W# L1 V' B& G- x/ Z6 w
trade-times-total
1 _( u( j% c! D# a( z, Z4 F+ z1 f;;与当前turtle的交易总次数
1 d, `# I- H0 U/ \2 I( v. Ltrade-money-total5 \- N8 n8 d7 M0 a
;;与当前turtle的交易总金额* k1 S V- a/ y, h R
local-reputation( y7 i; h, O$ @- ^$ l) T+ w
global-reputation- r3 G9 k* |- f- O, Z: _) k
credibility
! K( r- T: b4 U% m;;评价可信度,每次交易后都需要更新" ]- C1 _! L8 m
credibility-all
3 F5 d9 q" P6 w8 [4 z4 ]3 n! K;;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
) X' e0 F; G& Q# n) @$ i1 S6 q: o% [( A& }3 e" w2 ?
;;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
% p9 L1 o$ v& y. T$ D9 p D5 Jcredibility-one
' k6 d \0 f3 L, i;;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
! X. G( {* q& Dglobal-proportion
& O+ c& B! s6 C& W2 Bcustomer
4 T" r, \# ]+ ~, N! c: P3 w) l% _% Ocustomer-no
: S+ x" `& |8 g: Ktrust-ok& L" t- r1 O& d. _9 {3 \& e. w2 e/ u% a
trade-record-one-len;;trade-record-one的长度2 P6 J. ~" s3 b0 V4 o
]; {2 G* ?- }$ }
/ ~8 h6 t7 _( k' K, m. u4 i0 r9 w+ [5 o
;;setup procedure5 M# X1 j8 @- K# m& |3 E
( m9 K* L( r [$ Y! J7 mto setup# t6 x3 ^" t0 |- g* c4 l% z* b
6 x9 O D; B% ?: q" U# R8 p
ca
3 G8 x! V+ v+ _/ d+ E# H; b8 T& J
initialize-settings! J/ b& d0 g. K4 f) u" w0 K
* [# {5 X7 ]' Scrt people [setup-turtles]
9 g. r' m1 X/ Q8 i
8 t3 S; h! _+ H* H8 z- }, V& wreset-timer
/ }# l, V8 c2 g. a: E3 p L) K6 }- b$ J5 Q, H
poll-class2 a7 c6 A! ~' k, _# n7 G
9 \3 h1 R3 R; F, csetup-plots/ s1 d5 }9 i% T4 o
! D& g8 i8 A7 ]6 d) x$ d( H5 |
do-plots
0 @ s: f5 T4 F6 Q8 {; D# U8 Kend4 o" E, ^. N/ n5 n0 f# N( ^
3 T9 b& ^7 R; D( J& n Lto initialize-settings
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set global-reputation-list []
3 ~1 p% Z: f7 H) y. M
" s. t# h" \3 [- z) [9 d; bset credibility-list n-values people [0.5]
0 M0 f' D0 }/ i/ D& \' r
$ y' N2 @, Q9 R- W, U5 Tset honest-service 0# x; F) t2 e2 E7 h" E3 Z8 u8 e
; L2 v z) ~! X! q7 B0 C" J7 Bset unhonest-service 0) l9 F* Y: i! o2 u
% m; I* w( L4 @3 L
set oscillation 0. Q6 x+ \# R" l3 H' t
: ~. t5 L+ C% E/ G# o, _5 \9 Uset rand-dynamic 0
- ?7 I" J6 O. Aend! G/ s* l& y Y. W7 ]
+ b' v+ }3 b8 @/ j5 D: Q3 c
to setup-turtles . w# X3 Z# t' W- z5 v4 T% ~
set shape "person"9 K% \% v' o" g
setxy random-xcor random-ycor
6 t7 N: j+ U0 z3 J) F! _set trade-record-one []
( `: `6 x: c( ^+ y8 g( K# V, y& ^1 |( Y0 v
set trade-record-all n-values people [(list (? + 1) 0 0)]
. O( ?. q% B v/ M+ D( L* ?# k; r% J; {8 Y
set trade-record-current []
9 M( C7 r! i L |* y/ l* u5 G2 _set credibility-receive []7 Q: ^- f7 P9 X) f
set local-reputation 0.5& `2 ?, {& H! T% h& K
set neighbor-total 09 F7 j: N5 B6 b- k5 H7 N
set trade-times-total 0
) O' |2 h {- q- S4 e) ]* bset trade-money-total 07 {% @$ e9 \4 E1 W
set customer nobody
# X" E" }9 Y4 m/ }set credibility-all n-values people [creat-credibility]+ }* U1 J( M: \! j) s9 q' g
set credibility n-values people [-1]
5 _+ V0 V, P8 G* |8 e# pget-color2 `1 ]4 f- I" Y7 f3 ]* G$ E# B" J
) i/ t7 Y2 ]" n# Z( m0 _1 l0 Iend$ [. f l6 o/ m4 o s. \3 x! B
. T; ?1 Q6 K8 o/ [- n
to-report creat-credibility, n$ C3 Q0 u* X3 J9 n( O# _8 a
report n-values people [0.5]; f' U& D# j& M6 ~
end( Q7 q+ g+ ]$ k9 T p" {
/ j9 C2 y7 z) T- V6 K0 X
to setup-plots0 l4 I( K/ U# z% i; F3 e
0 T6 U0 {9 \1 d9 m
set xmax 30- f+ M9 |4 [5 e* V, q, t
5 p @/ Y7 Y! K3 l
set ymax 1.0" s; v6 {, H. V. F+ q5 x# w
( p! s) N2 {( O. T" l$ Nclear-all-plots7 @7 @- ]8 T6 m, D, [
* }3 }5 U5 d/ ]2 \
setup-plot1
. b, a l/ P5 e! ~. e& N0 B; _, P. D# p5 B% a- ]" I; N
setup-plot2 i. j/ A5 R4 U5 x3 _9 y+ a. K
% ]5 x8 f+ J g' b/ {- Q& Ksetup-plot3
( z2 q4 V; Q* z* e( q6 Eend
( A" V! q9 P: n7 U6 l, I( k( P' j& |" r4 D8 q$ L
;;run time procedures
& ~$ {. A+ N, a9 G, T& Y: z
3 U( h* W8 ]" N: Oto go
6 h: `; a8 [% W, S5 }0 D
1 m; c6 v7 ^1 pask turtles [do-business]
; ^1 ]; z; d/ d1 X+ K8 rend
1 B, U, N, _ R
/ I* Z0 P" w0 j% _1 ?) [to do-business
- R! B: V# j% E1 B, b
. F/ m3 A3 p- }& v% o4 [ O! t2 w+ S1 g+ l6 N
rt random 360
7 }( l0 J" [9 V$ V1 a0 \
8 }- `1 H+ H4 ?, {fd 11 s2 R8 |1 Z8 R3 q9 }4 C
+ ]& s8 ~1 \. f
ifelse(other turtles-here != nobody)[
$ W- E q7 p. W3 K+ j! G q: T5 F# S& t6 ^+ {4 a' p
set customer one-of other turtles-here6 G: w' }9 |9 X7 N
* O3 n1 A( a5 h$ |0 {) B;; set [customer] of customer myself
0 \) h. c6 _# b5 w# j1 c+ F% g I& x- [5 t! V C6 _
set [trade-record-one] of self item (([who] of customer) - 1)
4 w/ V4 Q7 h" {% l[trade-record-all]of self
; e1 s, ~% o1 R7 a$ t; P* p;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
k/ M/ g# b: ~% ?7 |: K# s2 Y/ L* I' \/ E
set [trade-record-one] of customer item (([who] of self) - 1)2 f* e% S8 A x' }
[trade-record-all]of customer
% i8 P+ `- I: I. l( d* e( e5 M' s& f" C m3 c; @& p e" W
set [trade-record-one-len] of self length [trade-record-one] of self
( N: l7 k, J! c3 e b' g% Z9 |4 Q) ~+ Q5 c+ w) ]* f5 x
set trade-record-current( list (timer) (random money-upper-limit))/ {8 x1 Q& w5 B$ |
$ k* r5 L! \- i0 T; aask self [do-trust]
% Q1 \ V# _8 B;;先求i对j的信任度& u; w1 X- }! Y m
$ O9 j( \& F! L1 R6 f4 Q4 Q! t
if ([trust-ok] of self)
v' s( ^* e: H;;根据i对j的信任度来决定是否与j进行交易[0 L5 f8 p7 V/ `) K
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
% {, ]- z+ H0 J: q/ J; b
/ r3 i0 i5 l' {. l; X( {3 u& t9 A6 Q[
e4 m8 h, g; x2 Z7 y
5 H# z; p" f# b! |% ^' Ado-trade' ^4 H M- T: l' k6 W
: C' S. L* D) v+ a8 B
update-credibility-ijl
! H4 s7 F3 `6 V+ C3 j8 m3 E
! n7 U l& s9 b& q3 ^update-credibility-list
+ A/ `+ _5 g! A. \: J/ M
7 Y# n3 x. O' J9 K* c+ F9 _8 L" C) o4 O' ^9 Q% H; I, B2 o S
update-global-reputation-list; J/ Q( ^' l% i& O" S5 a1 a
# T9 @5 d W) Y/ D( ^, G/ E4 C, l
poll-class: a/ z5 L4 J' W& B. N. |
8 K+ n( O& x2 Z, l1 G
get-color
/ o# N6 h6 \4 K: k- x$ B) |9 x$ u; i/ F3 X
]]
( y5 `. u' l9 Y- U# |) s3 j L9 B# ~0 O6 h: N% y% `( z/ i; K
;;如果所得的信任度满足条件,则进行交易* Y6 b, ^! S- E g
0 r8 {0 ]! l, K1 j& F" S }0 N( c
[
. z: l* L2 h6 Y: Z* f0 E
6 G: u. j: s0 ^6 Crt random 360
7 o# s" G$ Q6 Y' V* ^
/ G' E6 x' c5 Z6 _* ^, Kfd 12 g; C6 A, E8 K( @
: S7 @' ~, y5 v$ T0 z0 \
]
; D9 X# J5 b& c" E& h$ `, e5 t/ X
1 e5 Y$ t. W, d9 L- W$ _end I' i, w' T: ~) {: s) E6 A
* q9 O$ |' m; m- Q! jto do-trust
) _2 [4 }: ?5 m2 Z8 eset trust-ok False+ q0 ^, l0 u1 f' l$ x6 m: M8 `! C
4 H/ @/ O0 V/ m! x+ L( y
9 g3 w r* v, `2 k. klet max-trade-times 03 V0 {; {" z. H: y- I
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 R C3 E! K- z) _
let max-trade-money 0
' T7 B7 O+ y- n6 B$ e) w( [' vforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]# [+ _5 A; l1 {0 o
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
& n A( @; [8 P3 {
% Y6 i9 {* i% p, Q5 ]* y K% j; ~$ V' ^
get-global-proportion1 G* ~% |! p; p3 r- _, S4 `
let trust-value
. b9 q' i/ c% F/ Elocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
% X# F9 Y$ r* d* E1 C: Zif(trust-value > trade-trust-value)
$ s5 y/ T0 _9 a3 h[set trust-ok true]
" q* e/ i# [ n' k3 g' Y# K# _end
: t' A+ R' M- O: j
5 Z' O/ K" f# v6 S0 s: M8 d l( gto get-global-proportion m! ]% t( [1 z2 u
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)1 a# n% B: m; X: K3 d
[set global-proportion 0]
, P' ?9 |+ `2 ^[let i 0
. f! w4 m C* l6 U- zlet sum-money 0
( R( }6 ?& z! k Nwhile[ i < people]# U7 d$ H" n- }( K1 I
[
# N: Y3 [- E; S. O8 P. nif( length (item i
! a$ m" ?8 `! P. Q6 `( o. X[trade-record-all] of customer) > 3 )
( w- Z/ V$ Q( ]5 v9 ]( h[
# T! r" Q# W R' J/ J$ }8 K' qset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
, b2 {# V/ f B5 U; U- n]
; R( }3 Z: B& i3 I, |6 |- x W]
$ i* E# u! c+ ulet j 0
- c7 m( ^4 P: m A6 u1 X- r( O% ilet note 0
/ o- R6 ~0 ]; f9 awhile[ j < people]
# J$ N6 w0 I/ l+ s; v[1 C. w& Z- X2 z5 k
if( length (item i
5 {% d9 _$ {) P$ q3 ?* y$ N[trade-record-all] of customer) > 3 )
' D l6 E k3 z5 Q[
# G3 P% r* n8 u7 Difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)9 B1 ]* C3 r& v/ p) q6 U
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
& S% \' j( M6 j- w# R[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)], \/ n2 l: @5 E/ p# @% |
]
! s: v1 N' d1 a7 N; h]
6 r7 Y _* E3 F) R4 A1 dset global-proportion note1 u3 G7 Z+ i( r6 Z- s
]3 I! n0 y4 c& J# Z+ g
end5 B, I9 X6 a: Q! j% ~/ {* j
: N- {. W( N# e# wto do-trade2 u* t8 w! r. p+ F9 m9 \. G8 s* N
;;这个过程实际上是给双方作出评价的过程
$ \- p0 M" t4 c; ^. J' tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
- Y5 R+ Z- j( d. D1 Jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价/ S4 y1 A( o( L
set trade-record-current lput(timer) trade-record-current2 e/ a% A6 d Y/ [
;;评价时间
/ c3 U0 _; Z! q0 C' Y) `# p' |! mask myself [
- l# M8 L2 D# k( B- e8 N# | l8 x. aupdate-local-reputation) b3 o+ R, L+ b
set trade-record-current lput([local-reputation] of myself) trade-record-current! h* R1 W& G2 o( _5 s( x
]
3 D" b7 z0 k3 o& ~% C2 rset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself L2 u! a. L% H* _# G- O( h
;;将此次交易的记录加入到trade-record-one中/ D2 p" `" n4 K
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)( y' O2 F1 S( w" @) B
let note (item 2 trade-record-current )
! L3 k# z0 C$ D2 I8 Dset trade-record-current
* Z& d4 K" j- K, }(replace-item 2 trade-record-current (item 3 trade-record-current))+ ] T8 }' _5 I; Q% U8 K( E/ U, I4 K
set trade-record-current
/ n% Q7 Q* I( j3 p(replace-item 3 trade-record-current note)
! x, N0 R1 c- H: B' S/ W
; F p( P" Q: R: Z6 U! [0 \# \+ e" [ b, e9 T
ask customer [& G1 n7 ~% o- K
update-local-reputation- R3 b. B6 w( D- B+ _1 n
set trade-record-current/ V' J0 X. T+ s* }( C3 _
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
7 h- G; Y, t: A0 o/ d. r]
; _3 K& L+ m ~) N' T( @
/ }) k; r- Y# [! ~% X( I& D y& m7 V; C; @5 S! c9 e
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
1 o) r: Y& P0 n7 h4 `( i& C' E( C- V% U4 s& @7 F9 z
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" ?9 t W9 |2 n( g
;;将此次交易的记录加入到customer的trade-record-all中" O; d5 e5 n7 X
end; Y4 d: b1 b, d! @8 Y
; M& Q/ D, S' P& P& j4 M
to update-local-reputation
+ L2 z/ W& d% p; ~! @set [trade-record-one-len] of myself length [trade-record-one] of myself
5 m! O* Q* A6 I* f3 C3 W" ]+ Z7 T7 i" C' z0 {& J, @
5 R6 S2 B. a* d; n9 h! u! w;;if [trade-record-one-len] of myself > 3 # p0 g( ?0 j+ x7 [
update-neighbor-total2 X @0 L- F3 _5 ~) x- F8 s
;;更新邻居节点的数目,在此进行
3 I I" Z: {7 n" w4 `4 xlet i 3
& x+ }# N' B! |5 r4 ~3 M6 n4 Vlet sum-time 0; u1 q. b. ~6 p( i0 c
while[i < [trade-record-one-len] of myself]
. z7 L6 O- r9 q8 w e$ c2 F! T[
$ L& j9 p" T; ?, C9 g5 _set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
m, m O% D' r" ~9 G/ a1 @! {set i
, h; m" G. W( a( i + 1)& _" E H/ `9 L7 D$ }9 T/ {
]( [, A$ R7 M5 d/ U
let j 3
" V' o- ^7 N$ `6 w, M+ O. F& Rlet sum-money 03 f8 V% Y- K0 W: ?- \ {1 w* T* X
while[j < [trade-record-one-len] of myself]
7 j7 r; H$ m3 }: H[' V( v& f" `: ^( Z
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)& g7 @8 b% K- i* `% Y6 @. Q0 F+ K8 `$ p
set j
& b& P0 B+ U. ^; P$ t8 [( j + 1)3 u1 y4 I" v* [; b' ?: ^' ~
]
: h3 O% C' l8 e, i2 `8 ]let k 3
8 k9 V! {: m- R9 l3 i5 Wlet power 0
3 j" j# j2 j' L9 i! m0 J9 \4 |4 k( e* rlet local 0
8 ] j% e% ]. `; Y& `0 P5 j9 Xwhile [k <[trade-record-one-len] of myself]6 _' D& I& B( @4 ]# O
[
' s6 R3 z" h+ N( b jset 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) 8 ]8 ~$ Q' C- ]- f
set k (k + 1)6 x! ^2 V/ i* F+ g
]
' c* e0 s$ E% n/ O9 ]set [local-reputation] of myself (local)" `9 f, O6 q& t L, _
end) Z* @/ X3 i0 b) F7 O) `
! u) m }4 p! Q9 o) m5 V3 t- \
to update-neighbor-total+ ^' U6 R* W2 ?! ~5 p3 ~2 v R
7 x) D/ }# v" ]/ a7 M6 Z4 ^if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ ^: l ?' N8 L, ?
9 G$ e! C ^# m9 o+ U, Z9 |2 w0 ?* {" w/ L' l& k0 _
end2 v% G+ A: p. N. b
3 x( i- h5 O5 i7 x* u( X8 Fto update-credibility-ijl
# d7 d" o% d3 A$ ~( d; W5 \
& Y" r& F: G" e* s+ R3 N;;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。
& I r; {2 y, L1 dlet l 0
3 p5 Y! P5 t/ w0 D" ^, X7 |while[ l < people ]
. s) r. o' y# `0 L+ }* I;;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
+ K' d% x E, b8 K[* Z5 d: l+ D; e9 h$ j
let trade-record-one-j-l-len length item l ([trade-record-all] of customer). f( b# @- n' G- ?. k
if (trade-record-one-j-l-len > 3)6 J5 p" f9 g; c; U
[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) `' v8 ]+ }* \
let i 3
! g. e9 R! B8 f( { f0 z6 `2 {( ?3 z# xlet sum-time 05 h1 b: v; D6 n3 u1 f" N* L
while[i < trade-record-one-len]
& `$ l" U0 Q: S7 H0 ]3 Z[ f* d" `/ R2 S. O$ C2 P
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )& e( L; J \7 X' ^3 K
set i
% g, s" t- ?- `$ O/ B/ } i( i + 1)3 O+ a4 x. {$ C8 v
]; ^5 b" N4 J: }" O
let credibility-i-j-l 0
' c" l+ }" V3 N4 X2 Y- b/ I;;i评价(j对jl的评价); C" B; v0 c8 E$ e2 W. W; p
let j 3
* _9 t6 s+ K: l* e" w7 [1 n) |let k 4' @- ]9 ~( C$ s, P0 R
while[j < trade-record-one-len]( B2 u8 M# d% P$ H) G* f
[
. o8 r4 N7 J o) |/ p4 [- 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7 w1 f, E+ ^0 ^$ M& Y7 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)
" @3 G# F8 \% dset j
. b' a* o4 s, u+ X- z; C/ v0 z( j + 1)
& }! o& [ h5 _$ ~0 f& U& S]% l9 _1 M& k/ X: ?, t- H
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 ))
) c; Z% B+ p6 X4 u3 h6 r: S+ o. I& o$ m' Y0 R' g" J, k
. W% X1 D3 R( W4 u% r* p& F" ulet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
, `4 h$ d/ j- |! i;;及时更新i对l的评价质量的评价- X6 s5 m# Q! l: v+ |; g
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
% C- z. A, Z- M. pset l (l + 1)4 M3 d5 M2 N0 e
]
`3 v6 }+ h- pend* I4 [; f1 c; h2 Q/ W0 _
% f% z" O5 ~7 W: R8 a5 f) t; w. ito update-credibility-list
/ e& k/ O1 z" {. ilet i 0
( X! D( T3 I# l2 mwhile[i < people]1 Q) I) ?% w. s% _. o
[
5 r8 C0 R: B. R7 ?. w) P4 U0 @3 xlet j 0
r. B' }3 p4 x( G! llet note 04 I5 f5 Z8 O$ U6 n4 ~# u6 m
let k 0; H9 P# F0 g5 w2 N9 ?4 Y8 ?
;;计作出过评价的邻居节点的数目0 V( d+ @) b. t
while[j < people]: s: R5 F! K8 R& a+ P
[9 u; i9 P" W/ H' k* j
if (item j( [credibility] of turtle (i + 1)) != -1)
( x' R/ u9 w3 m: p' D;;判断是否给本turtle的评价质量做出过评价的节点% ]5 [# Q* U4 a4 r
[set note (note + item j ([credibility]of turtle (i + 1)))
3 i7 }0 o1 S+ W4 h& q- C;;*(exp (-(people - 2)))/(people - 2))]
3 K' n9 W3 u- p- n# S7 `set k (k + 1)+ _7 D, O; V& V8 P& V
]
6 i# k2 N; j/ `# J3 G* fset j (j + 1)$ ?6 S4 [- ?8 e
]+ \! J/ A- ]# r: V; k: _2 e
set note (note *(exp (- (1 / k)))/ k). k% \ x0 J8 j' y$ J4 z2 h( S6 H
set credibility-list (replace-item i credibility-list note)3 S: }& P y7 b* U
set i (i + 1)2 j% |4 w6 {, a1 K
]0 s! {9 c5 }) f5 \1 L0 K( i0 S
end
( X. C, D2 Z. | H/ L7 A
$ _0 c3 e( D8 O% t- i& ]to update-global-reputation-list
; V8 p3 y, H# \& ~/ U: K7 Z% A8 Ilet j 07 G. j C2 l! R4 s- [2 t; w
while[j < people]8 k( `& j2 Z: z# i8 @' [
[5 f) L9 V* M% a# u, d
let new 04 M) I# l7 E% ]. j( L9 a1 {7 q0 A
;;暂存新的一个全局声誉
8 z1 ]( U/ {" |, q" M9 }let i 0$ f, _. L2 p c+ h3 c+ M- u. i* y2 q
let sum-money 07 c: }% [4 o( |$ P5 g5 a( J4 }
let credibility-money 0
+ R3 k% `& d# b$ E& ^- ]while [i < people]2 K v" |- p6 N
[
/ ~: S& U+ [4 J3 `) Xset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))): a! Z, g% e& k. @
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))" e+ }: A, S* ^2 D8 i* z& \
set i (i + 1)6 h& R, n; N( G- D/ V
]
% E! r, Q8 P( o P1 ilet k 0
* a& J1 |8 q; R! x) blet new1 0
! n& b7 }) F) a7 x" ?) d: N! iwhile [k < people]5 s' @4 }2 @. Z) q
[
7 b6 P8 c9 T) g: u" X: Jset 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)
% w& ~6 T2 Y& l* t( f) aset k (k + 1)
8 Y( y1 U& g! I]
- ~- z2 c8 L5 a7 i4 P* k+ ^7 sset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
: H7 w- \' G8 Yset global-reputation-list (replace-item j global-reputation-list new)# {: @/ a, d' Y& [
set j (j + 1)
, w& K: J# ?1 \]
' f9 e* W- Y) G$ }) z# J5 L4 oend
& ~$ W* [( c2 b9 L6 [
* V. B. g t- k4 t$ P; j8 E
( m v& M& J* u; U' W, N2 `, o0 T6 [0 E% [
to get-color6 p8 i F/ M. m8 N
; @7 J- h2 b# E( @set color blue" Y1 N! [8 ~, f( }6 b8 X
end: r4 ?0 S8 W+ p: F) m i& h
0 a( L7 E, Y; ^' ~3 {
to poll-class) T2 S) ?2 O2 W" Z6 i, J
end0 n! V$ ]& J- w% x
l, p# C6 G0 J( p" H4 k
to setup-plot1
/ a9 x2 k9 T; x5 @8 {& p: b- E5 `. @- `
set-current-plot "Trends-of-Local-reputation"( F0 F& t% q6 Q) D& z8 J
1 S1 m; j3 ^6 n( k' \# r) u6 kset-plot-x-range 0 xmax
4 j- R+ t, w3 @/ E+ V6 h. O7 p+ _& m9 M3 K+ i6 C: }
set-plot-y-range 0.0 ymax
# }6 t' f5 @+ `end" R1 u- h9 j3 j
1 b* B2 N7 N' z% @) ]
to setup-plot2
1 x1 \' V @+ `" `+ Y7 c* B$ I( ^+ U s1 [% r- W0 y
set-current-plot "Trends-of-global-reputation"0 s+ j: i$ U; Q; e
: g# N3 c/ }0 a2 r# X7 m
set-plot-x-range 0 xmax8 M0 J, R, R/ z
* B a; m, ]! Z( N, C% Lset-plot-y-range 0.0 ymax$ x3 g1 }7 N( w7 C7 O7 L6 B/ s( f
end
) E# |8 U$ u" }; m& ^" x' T2 G+ N
, f- F* N2 q" Vto setup-plot3
* i. w1 ^' Y' M$ S% |" D, T% h z1 a1 g; a- ]2 E: G
set-current-plot "Trends-of-credibility"
4 U* P+ G. }- L- A3 K6 s
5 b0 T# X% Y" h. ]5 yset-plot-x-range 0 xmax3 E; i" Q# M: e5 q
( K \5 Z& g3 s, G1 `' R: sset-plot-y-range 0.0 ymax) }* y1 Y* ?+ S6 L2 [; O
end8 O% A! y; ]5 B2 q3 }
) \: W" |2 Z7 p4 g6 B0 ~7 x
to do-plots
# x( i: H, z& @set-current-plot "Trends-of-Local-reputation") h% W9 ^# ~$ W1 q* q
set-current-plot-pen "Honest service"# d1 z# a# g$ n4 u+ c
end
8 d2 B* o2 m* x( F1 N; q; X* l/ P2 {3 o( u: x* k
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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