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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, V1 R0 c0 Q+ |1 o& w' u
globals[4 m2 N) D( g! H/ X9 e
xmax
2 `$ z' X3 [% pymax
' p/ D C- n) g& d6 r) O' [global-reputation-list
4 U l5 o1 N4 g1 j2 W9 l0 _: p: k6 D7 I
;;每一个turtle的全局声誉都存在此LIST中
6 D) U8 i( S6 A4 Hcredibility-list
% \, D9 C" Y8 ]* ~/ m. a;;每一个turtle的评价可信度3 x7 ^6 P, ?' L1 z
honest-service2 ~9 l4 W( a0 w
unhonest-service+ w" M" J Y2 E- z" L
oscillation
6 P7 }- L$ o- ]5 \rand-dynamic9 I7 U* T# J2 ?9 `
]
) h" I5 h" O' N5 F
- `/ j6 R$ w& }6 D; ^turtles-own[, {1 Q" d E \, o
trade-record-all
% A+ o) \' n( V4 A+ c9 L6 g;;a list of lists,由trade-record-one组成
6 ?" z* D, @) m/ v5 \trade-record-one- u# I9 h1 l; ^$ S. U$ q
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录2 I4 u& @0 R2 @* S! v" F
: U# J7 ~3 k2 Y7 ~) q1 x
;;[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]]
1 `6 i) H; C2 x" F+ [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]
5 d, T6 L x8 p: ^5 v# l0 ucredibility-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
0 O3 j4 q# i7 T; H7 Z! rneighbor-total
7 \ ]# P& w6 B" n1 B* T6 C A;;记录该turtle的邻居节点的数目" }' F7 ]# o8 U. j7 g0 c7 i
trade-time
9 W. o# |# W1 y" T1 C;;当前发生交易的turtle的交易时间
$ k9 ?/ Z. O) V# dappraise-give8 [2 C- W1 T4 d$ v$ `9 M; [+ v
;;当前发生交易时给出的评价
4 Q: _' P8 A1 D3 F" B) r5 {5 vappraise-receive
8 B! j! C0 P0 [. `;;当前发生交易时收到的评价* m* n" r4 _: F! P* v
appraise-time
3 I( @2 K" q: b4 m5 r) \;;当前发生交易时的评价时间) [% E' p1 ^3 t) @' `) g9 J
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
/ O1 G$ @/ ?( i$ x# {7 k# [7 m! mtrade-times-total
& I9 s) N: J+ q;;与当前turtle的交易总次数
% N e* S; G' d) {2 Dtrade-money-total
! s- P/ U9 Y9 X+ _4 c0 c0 `) k;;与当前turtle的交易总金额& q! W! }! A8 R4 R7 g2 x
local-reputation- H( i; F, V$ l1 U! F" y! K- E
global-reputation
. s: @% P& X( m6 p6 A- g8 U+ j& Z7 p4 Acredibility# i/ p: V+ ?( X/ S, F
;;评价可信度,每次交易后都需要更新 j& d8 W+ L6 J* Q" h$ i, V3 ^
credibility-all8 W0 ?+ d3 u }- ^6 e) l
;;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
1 _7 x, q* V. {) t+ ^% \
9 _1 ]% J, d& N% k, ^- Y+ S$ 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' G0 l- E6 e4 v) T
credibility-one
3 l, I* z- B5 K9 x# w8 M;;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
3 d3 z/ j) E1 Aglobal-proportion- `7 |# j: I+ i7 q
customer
$ l* [" b! _. gcustomer-no, k. B9 x% u b8 h K: v% c+ o
trust-ok
& U3 P0 z* G0 `+ K- [* o4 Itrade-record-one-len;;trade-record-one的长度
% A& r7 k$ `: Z& v% z3 h! J]
; ~/ j s8 z/ ]/ w1 q$ \2 X
1 h4 G G8 S8 ]4 m3 T/ _;;setup procedure. V/ {2 Y4 r0 ]) Y+ m2 Q
3 T7 m& x7 h0 ?8 k* Y" _& A
to setup' H8 ?/ f& @" i# p+ h) r9 B
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ca8 {& @+ k; ]/ F
{% ^3 D+ i( o4 n
initialize-settings G6 W! W2 x1 c0 Q1 K
2 g$ N J5 v( W; E7 |
crt people [setup-turtles]; w+ K6 j' E4 o: z: t
$ E0 I& X" y/ V# z0 n, G: I' G& Vreset-timer
; `2 P% I# @+ N, `
; [: n/ Y" i& kpoll-class
( O& v: m4 H* P, O2 |, b3 t4 n+ C: K. S
setup-plots
, ]; T- b( x% o ~# h' E5 G) y6 c, ?
do-plots+ \+ X# ?- ?# g3 `5 ?8 R7 B, p$ c0 S
end
- n" @, h( p' E) \4 a
$ E3 q$ n" `: `- u, u1 Yto initialize-settings, c Q" d+ o6 d) m1 m
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set global-reputation-list []
$ K$ ?2 e# i+ F8 w) E/ X8 }5 ^
! o! X0 d9 J# Q" Iset credibility-list n-values people [0.5], |+ \. K9 `+ v. c* H! V
+ g7 P; }) `+ t3 {! R" [" y# m4 [$ Gset honest-service 0
8 o5 T+ \0 w+ g5 M) Z
r! H' [2 P$ L6 k8 Yset unhonest-service 0) y7 ]; L' E; Z
9 `4 \4 o! w ^! b+ V! E
set oscillation 0
" G) L- {' j5 x0 s4 P
# N/ J1 q: m4 v* Mset rand-dynamic 01 ?; V# n6 N! T: l; F/ g. j+ Q
end* W5 J0 c% b: n8 K" d
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to setup-turtles
$ d ]7 R9 @7 p0 `3 cset shape "person"- F, {4 i. @2 u3 R+ V! x& Y$ B/ S
setxy random-xcor random-ycor
, V( ?5 q9 c1 [- H! Zset trade-record-one []$ ?; d- h; p5 i
1 y5 Q2 y: U/ T. D" ~+ q M; L# v" g
set trade-record-all n-values people [(list (? + 1) 0 0)]
8 O" x: _1 A6 c
3 i: U. O# `' g3 P* u, t2 @) Y- Bset trade-record-current []& l# m) V M/ C
set credibility-receive []
+ N9 V9 H3 ]) R5 F: z) Wset local-reputation 0.53 r& _" \ Y% ]3 j0 ~ ^
set neighbor-total 09 m1 E0 `$ H) I2 D
set trade-times-total 0
/ R7 e; J% o3 g$ @& ]set trade-money-total 0
5 l8 A) K& a* X- { y5 P: [set customer nobody o4 s* k6 N/ f8 P+ g) i
set credibility-all n-values people [creat-credibility]
( _8 a# O; U. P& x p. _set credibility n-values people [-1]& y) Q( _* y# ?; d& M& h' V
get-color
4 _# }" c2 |7 H/ ~" D9 K2 l/ i" G, f1 l' y" R6 `; F2 a) I/ b
end
. K0 D' r7 O# i" ?) C: X3 x4 x0 O O# z( j3 f) x6 l
to-report creat-credibility
1 d9 n! O/ ^. ^9 @- Z5 greport n-values people [0.5]: a( r5 u# @0 y
end2 z+ Z+ n# U% ?# o5 S+ A3 V
& k Y! s6 ^2 |3 vto setup-plots
4 B% ?$ U, Q# p s0 ?. C, n# y4 k' [0 Y/ r W3 C
set xmax 30
4 d0 e& e2 n6 F% ^0 M
0 V, O2 s, C4 E/ {! d: n0 Lset ymax 1.0, W7 y2 C( F- ^5 y
' G6 c9 ~1 p! ]: S5 b2 G
clear-all-plots t* a& e- F6 d1 [# K8 U0 C9 Q# t4 p
# E. f1 x( A o
setup-plot1/ T- G) V w4 M
: ^1 i4 h4 c' _1 U. b) ^setup-plot2
( g% z# O* e- r; h8 S( @; {8 @* }! w% J2 Y7 E' f8 y
setup-plot3
# X0 C" \- W! |5 o2 z7 d; gend. J; }2 r9 V5 e- I
8 h) k7 t' p+ ]
;;run time procedures( h3 p4 ]+ c4 @0 x7 V
5 j0 z; A' N( P
to go: G$ S5 O) U( c
5 {2 m" Q9 e0 _" m0 q
ask turtles [do-business]
$ g9 l, o9 k* D* L# X! rend
# z- m' v0 E# C$ f: l
2 m# j+ O- M4 V4 I, `to do-business 3 z) W0 m7 q" Z5 o6 d4 ?3 p
+ |' A* U- Y+ ?! p& m& C7 t! H2 Z1 q9 \. ?8 U
rt random 360
9 I) g1 l, V: B! ?" z" o9 [0 U* ]/ a; Z3 O5 y
fd 1
& ]" a! f" y0 J! d4 x' @4 h* q3 b* V1 [& [$ h( e) D' I5 I4 t; E$ J
ifelse(other turtles-here != nobody)[1 N8 m6 d* O% e/ A
4 S! A# n9 _; Y. q- V! h! ~
set customer one-of other turtles-here& V# i' u5 J, R( W' r
( ^9 |+ M; E* k4 [2 q;; set [customer] of customer myself
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. Q- m- J: y8 y) qset [trade-record-one] of self item (([who] of customer) - 1)
: u. h2 A& p* h* q# g) ~$ e% P7 x[trade-record-all]of self
3 t, ?( ?# k) {7 s G* r1 l;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ K2 N& U2 k% [
1 ]) G" T J" b: c/ I) ~/ Nset [trade-record-one] of customer item (([who] of self) - 1)
- R+ X" ^& f l( A6 \" ?& l2 ?, U[trade-record-all]of customer
2 R% p/ N) l! r5 f* w& W7 [$ S+ H
set [trade-record-one-len] of self length [trade-record-one] of self9 ?8 X; U0 q( D* ^6 Z
9 l% i. u1 w) L) o0 pset trade-record-current( list (timer) (random money-upper-limit))- ]' w; K3 v* A4 L, P2 P/ a
0 v" n& {/ a9 g' Kask self [do-trust]
+ `! m$ P6 P- }3 |0 S- X;;先求i对j的信任度. l, g% w a" A3 R" r
+ q0 w* Y+ O% R1 zif ([trust-ok] of self)
6 u: X& p* C$ _+ r& s;;根据i对j的信任度来决定是否与j进行交易[
2 D) e5 s8 J4 z- Oask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
& X6 ]4 ?4 y/ }: Q( K! l" w8 }
" b; r$ I% _7 v8 _& a[. _& X2 a' R& F$ u0 C) ]. x
" R4 O' N, B* R" b( v8 v: q5 a2 i/ ?
do-trade$ ^- I2 R4 p- D8 M. P1 }% b) h
3 L8 Y. q; t( R, ^2 f
update-credibility-ijl9 Y9 G. [. W4 h$ u/ R
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update-credibility-list# b2 b4 C3 x I, ~& |
* Q6 R; X; j! J+ z% `! C0 q/ @& h* t3 I
update-global-reputation-list% ^7 P5 N0 X6 x; _8 ?2 A2 h& k( Q
! J5 \ }3 ~# E0 n
poll-class5 \# a! T# c- ?9 e. f
" M% N4 U1 X2 G+ o5 k! M" S0 }
get-color
! \- X" o& }. `, h* Z" i0 c) J. P# `- F( c8 H
]]
* a W2 D, [. s/ r2 c0 {
! w5 r* f; x$ t) X7 Z* L* x;;如果所得的信任度满足条件,则进行交易
1 h. c" d/ S$ r
* h: A9 z6 S' d" M- |; O[
* A6 h1 m* E: h8 n! C, ~5 K
+ Q8 b+ m5 n7 W, A \rt random 360+ m/ n6 |4 [5 W3 m
, K" T% _3 l! F9 X, p
fd 1$ b' q) @3 k6 Q9 r
8 {- S0 [" B3 }7 t3 j) u! W( x
]+ E- O: k d7 v% g* U a# T
" q. l- g* _: T. U7 N; ~end9 S4 e, J+ ]" G6 S8 P1 M
& E9 ~' A7 c1 h" k! `to do-trust
l; C, k& y: F- Aset trust-ok False
# ?: M7 V% P& G T- k. Z3 @
* c6 v8 V* b+ x* @0 D% }. }7 I
: D# S; E; V" L! p# A* |: @0 |4 ~ {let max-trade-times 04 R$ O) a# a% _0 U5 X
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]% f/ O) O4 [: Q. W
let max-trade-money 0/ @. f( G* W6 C/ D$ Y- D& S. h
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]- N) _; P, I% e3 v i/ _
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
# a9 o# \7 k% @2 V# I
$ k' v3 e; X- _- [$ J( q$ O% I" _, A0 t$ }' [* ?
get-global-proportion7 k( o' ^% X! y7 [% L
let trust-value
7 Z2 H( q" ?1 e) b# Y% y$ ~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)
7 ]% H( Q4 r6 mif(trust-value > trade-trust-value)
/ u A' @9 Y$ b( u3 u- h[set trust-ok true]1 q/ I# K& Y0 v+ b7 d& Z5 c8 [" R
end
/ ~% B+ ?! e$ o$ l5 r S) H" I1 z3 p% U* U9 ^5 d' W" e1 g6 S
to get-global-proportion
; i( N$ X- g7 m0 d) Yifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)7 J8 q4 c- N) a9 h0 z# \' f
[set global-proportion 0]8 x! r t7 R( N2 H- `& |
[let i 0
% b: \& o3 y& @0 t: qlet sum-money 0, ~3 b" @. l( y7 i% Z7 m
while[ i < people]
7 I& b4 _5 _3 r: [- X( y. v! X[: i$ W: q2 \# W6 x% W; ?
if( length (item i9 c1 U- P7 Q+ o. s7 D- G6 H; T
[trade-record-all] of customer) > 3 )
# H& p! ]5 D1 i[+ w, ?0 \/ V1 g# ?
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))' R5 F1 K# v* w" ~+ D1 ^& n
]
9 X2 u0 S |0 {]' d8 ~8 }# F" ~4 y% A' [, M5 e C
let j 0
; q6 B5 R8 W. F9 d4 Ilet note 0/ \3 i7 d& Y8 x
while[ j < people]) g, Y( T3 H# ]5 b7 N
[, |0 M; `- Y, w) q3 E
if( length (item i
6 k, M# X* A1 }[trade-record-all] of customer) > 3 )
, J6 m9 w" S/ f N7 d2 p1 z[% A) c" g$ [ ]8 M
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1), Z1 q- x* ^4 R# e* E; F
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]5 k0 `9 o- [1 |- b
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]$ i3 F5 N, S$ N' l/ K- T/ V
]
8 N, P9 ^2 j. h. V( }]: t+ L& e: g1 ~9 a* l, p, {
set global-proportion note
4 [' G4 T5 E4 c1 x8 ]: C' B]
5 }0 Z/ O& ?5 ]end3 O) d" c1 s$ j& Y |, Q; q! w( s
" K6 H7 t( O; \6 j6 Kto do-trade
6 w. x! r! k& T9 Z6 Q;;这个过程实际上是给双方作出评价的过程9 y5 J( x6 W4 R2 c8 d
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
@- F8 c) U' s4 q( nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价 ?1 M7 M% S! l) X7 D. ^
set trade-record-current lput(timer) trade-record-current5 l A& y- ~4 j# \
;;评价时间: b- Y/ z! ~3 ~# j3 p
ask myself [0 W4 H) r+ Z% u T; u# g+ \
update-local-reputation
6 r; J$ ?, \2 n! V5 p [set trade-record-current lput([local-reputation] of myself) trade-record-current; }3 [$ H7 ~. ]+ N6 @
]
/ c% c$ F4 N: R6 rset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
0 ?+ u) x5 T* y$ |* b- L;;将此次交易的记录加入到trade-record-one中
' z0 y3 l2 t. W I, Jset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)9 j# b+ I! t- @) Z) a
let note (item 2 trade-record-current )
9 m9 o# A, P+ [- O2 M% G [set trade-record-current
& W6 f k& w' X( s; f(replace-item 2 trade-record-current (item 3 trade-record-current))" x5 g/ s3 ~2 g' U/ F4 ~8 `* |
set trade-record-current5 g8 o5 g. H. G9 g$ }
(replace-item 3 trade-record-current note)
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5 H' _0 C8 G+ {8 N) C8 I! |; E2 D
, B: {' {; u$ S5 w0 I- xask customer [) F" k7 l5 q2 ?$ g1 Z ^+ y" H
update-local-reputation F3 G3 _& I8 m$ R( K* q& U! c
set trade-record-current
, h0 A$ c5 x/ |6 X4 U(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
$ H+ ] K- l, G2 \ F' g]2 L4 V& b4 l- _
/ {0 k5 J8 ]! p4 P) h
; I, `0 Z* u& P5 aset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
# y$ \4 a/ m7 L
. {6 B+ Z9 ~6 K+ hset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
* z1 J: O# R& m' ^;;将此次交易的记录加入到customer的trade-record-all中# O* v5 v" x9 M! L3 F
end
; m j1 C* _! K( m0 W- ~1 U& g4 n/ A3 ]4 U* V) V) G. g
to update-local-reputation; l# Q) S4 Q& k L* G' I# @
set [trade-record-one-len] of myself length [trade-record-one] of myself" x0 [/ M: ^* V& H
5 t& J7 U# l" m# y' h8 u1 d/ d4 }( q" K P- K1 Q
;;if [trade-record-one-len] of myself > 3 + l" l& X4 g8 V3 J& E
update-neighbor-total! w+ m% D& m; O% e# L$ v
;;更新邻居节点的数目,在此进行
' U+ F# [2 c" d8 s" z6 vlet i 3
4 v1 c8 G% k. W* Tlet sum-time 0
2 p& E; O2 Z1 o) bwhile[i < [trade-record-one-len] of myself], x6 H( h5 |4 {8 u% D# l- x: v
[5 ~5 k8 K' p2 S$ ?: V; E* D) }
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
9 x: _2 z7 ? Yset i
3 w# {8 k& o8 q& Y* g( i + 1)
0 i3 T+ U* _: i3 m- E]
- ~' K" v9 E" ?( w9 ?$ Q( tlet j 3
* I2 p, V; v, S6 Q1 C0 u6 Ylet sum-money 0
# z) g# H# z9 W {while[j < [trade-record-one-len] of myself]/ k8 t- h* y [" r4 m& C8 z' c
[4 R8 C' W0 ]% h
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)0 K; r% P3 _7 ]' B2 S
set j3 r# W% n+ [* U: F) c/ `" O
( j + 1)# {4 c2 [& O2 V
]
' ?. w F8 C2 h* z% S8 o7 Dlet k 3
6 r5 \6 ^3 A3 y+ R! B6 V- Jlet power 0
_% ~/ E' Z7 q4 L% \8 O+ C: Llet local 0/ \3 H; {+ v( g
while [k <[trade-record-one-len] of myself]: x! P8 q; _- j1 C' ~$ d
[; b1 n9 o' q" _2 P0 @
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)
# ]$ I0 W$ L8 ~3 I& Aset k (k + 1)
9 U: S) {- Q5 @8 G' l]
0 K- L& O/ ?+ _& b* i# u. e$ ~set [local-reputation] of myself (local)
! ?, @) y& O/ n) k. D+ kend
* i3 s6 b! V$ x; u3 {$ }0 T7 j. \: i" c% H; m( y; u) D
to update-neighbor-total
6 r8 _. N1 l$ q2 m# O& ?. K# m J% _6 C+ y4 v/ Z
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
+ A+ a' d" d# n: u" k8 C2 v& P( O5 g- g& u) R
o( }- H1 z# k9 k$ [end& x; S* w; V- w- [
4 K# c+ i6 F( [4 x) ?! r
to update-credibility-ijl 1 e t7 o. b# I2 ]8 P
6 h$ y, Z! H; @- @ @;;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。, h& B8 j" v3 b8 M/ Z
let l 0# H6 a* D5 v" n
while[ l < people ]% M9 o. I# Z' g- v* f, P+ G. v6 b0 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; z. r/ P- D v
[
' E) w4 X5 |7 r1 k1 R9 R4 Ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)) S2 W0 w; z2 [- C. \
if (trade-record-one-j-l-len > 3)" a$ u8 w9 j- P* c0 u7 `7 |
[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" W4 m: s2 b1 ]+ A9 b* u
let i 3
, g. R k/ f* `* G- n- K# q: Rlet sum-time 0) C" @% d( ` ^7 V- K) p/ |
while[i < trade-record-one-len]8 v/ X" W/ V$ M/ U
[7 v4 k z- {: X/ K+ E; W: d
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): i/ j$ T: Q4 K/ ]* {1 ~4 F% w! k
set i
5 E' c! B( W4 Y- e6 I# e% Z, G( i + 1)
$ ]( |1 Q* n8 P]
$ l% X$ o/ h; nlet credibility-i-j-l 08 r! q% q; Q% a/ m2 L
;;i评价(j对jl的评价)
+ e0 r$ i9 K: ?9 ], a+ Blet j 3
0 D( {- O1 n7 u* A* Glet k 45 r3 [! u. k l9 t4 N5 H! ]' {
while[j < trade-record-one-len]0 M( V5 O: z* ~) F
[* C U7 R/ H0 K0 w- c. [$ O
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
( Y% R1 l* v8 U) i4 K: Cset 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 y9 ~% R, H* U" o; r, y, W7 aset j# L: L2 [0 K& n) ]. z0 G+ G o! a; G
( j + 1)
; g9 i% K% c8 a# r0 _]
2 O1 Z/ ^3 M4 `/ i% Z. bset [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 ))
. J8 E1 U4 v# ]. ]" \
7 |( r+ l; s# \. w
: @7 q- m6 d ?9 e7 Ulet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); a$ f1 z) c6 G2 z2 v' A4 i
;;及时更新i对l的评价质量的评价
+ d- S& }/ ~- H2 J ~4 ?6 ]' P$ aset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
) `; H8 j0 C) K5 C) T3 [8 Iset l (l + 1), {) Q$ X, |" m; _* d3 k' J
]0 C% x: Q' U; M
end/ O! U$ N' J" y. p! O
0 C/ t* g3 F$ C: a
to update-credibility-list3 f" `. S/ M/ f7 P6 O$ K Y/ s
let i 0
5 ^' f/ A# F B% iwhile[i < people]5 q3 m" {1 Q9 E+ ~1 E u% O5 d: m) c9 q
[0 k" G! c/ J# [3 {8 y* _
let j 0
: R2 w6 K: ], P5 L/ F% e& E, U6 dlet note 0
; G: h8 x2 Z) i U. Q& b; {let k 0
8 x: P, n2 S0 @5 D- J;;计作出过评价的邻居节点的数目
- F8 `! [" s; j1 W5 r4 G. ^while[j < people]) F; \* i; G0 \1 L7 H5 |
[
7 c2 F3 {3 c L+ D2 B( oif (item j( [credibility] of turtle (i + 1)) != -1)- Z( w7 E0 ~1 [+ [3 ^2 l
;;判断是否给本turtle的评价质量做出过评价的节点
3 w* E6 W$ Z* O1 |8 y2 }[set note (note + item j ([credibility]of turtle (i + 1))). C, ]5 q$ y6 |0 P0 Y" j
;;*(exp (-(people - 2)))/(people - 2))]
/ H, V& U; J2 x$ H0 ]; E* j9 eset k (k + 1), D" _. N- d& y* ?1 m; y
]3 T# _, a( R/ I5 H
set j (j + 1)4 b( h) g! R% M: ?
]
7 \+ o6 @$ g6 h5 ^. ~9 _2 }$ l- ]set note (note *(exp (- (1 / k)))/ k)1 y. g, Y/ s. m0 K
set credibility-list (replace-item i credibility-list note)5 b9 J6 Z0 a4 _
set i (i + 1), J8 P5 R. @7 M3 J
]
0 U- ~ h5 f# ~* m0 Vend
# J9 \$ Y* `& r4 K8 \: x1 T
/ H* w$ H6 h( \* \to update-global-reputation-list/ }' M3 {% U6 ~
let j 0: ]- P, E. M' y% R
while[j < people]* ~+ i3 K M3 e q
[
s3 v; N1 E, F9 mlet new 0; m% X7 A; i! \. C7 J
;;暂存新的一个全局声誉. ?; |& }$ z* V: W0 g) t
let i 0
/ a( C/ Z" E% V& I. \$ rlet sum-money 0; W/ V% {$ |5 z' j. \" }8 x7 O$ @
let credibility-money 0" k+ U$ q& `, m+ M4 ~
while [i < people]5 l* t$ M( r- K O e6 c8 F7 q0 j
[
8 ^7 A. I4 v& d1 v! I+ y! Bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
4 z8 y# V. B6 ]/ j6 j0 uset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
$ [7 s' f: y, z \) h% T, cset i (i + 1), g5 Y& R1 s1 j( g2 R9 r- F
]
) a* m+ K2 ^( T4 O9 alet k 0/ ^2 K9 P4 X( z0 u
let new1 0$ c: s9 W* @9 y- {/ h7 S
while [k < people]
5 Y$ V9 ^0 r; Y( e" S4 q: Q. ][
" w$ c* f6 o0 C5 T0 lset 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)
+ @7 X* Y* A3 O( X* r8 U+ m/ hset k (k + 1)5 d8 B+ C, }" ]6 W* s& X5 b
]* {1 ]8 A# A. u# ]7 Q
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) . H4 m6 a7 ? j$ b
set global-reputation-list (replace-item j global-reputation-list new)
& ^1 E) F- t9 \; nset j (j + 1)* A% x2 _4 ]% R q5 d* N
]0 b; f4 R8 d) w- A3 B# x6 A
end, N8 I; b. @6 Q7 Q/ X
, l! t8 f2 P( _ i5 Z5 W: e. y
+ ~# P* J* n: f8 X1 d7 T
to get-color2 h* W# ?" J) w' g2 E4 [
0 d! V V$ l" Q) J
set color blue
) \- g. [" _/ \: W! Lend O8 c& e* ]& _5 y/ {# F7 }" x- A
$ h+ o$ K/ K/ W1 M) g7 _
to poll-class; y& D# l% n' X6 x! }" a7 n) d/ k
end& m) V {- o4 V) p' H/ |
- t, u& {' L% l2 G' d( Y
to setup-plot1
) E6 U( w/ p; v6 a a$ m
. ~' X# D- u/ l* ^/ hset-current-plot "Trends-of-Local-reputation"
+ r6 T# M4 K. m; h
9 g7 b. q. _7 v4 O% S' Q0 _set-plot-x-range 0 xmax
. C8 K6 Q8 q, l. q$ p2 M; l& y1 p! }6 ?' ?: N2 k. M8 \7 h- K( U
set-plot-y-range 0.0 ymax' M: N) `! `/ F) y3 w) |1 ^
end* g) O1 K& [+ ^3 S% u
1 A) F4 `5 v4 s: pto setup-plot20 r! L9 P8 l4 @. i
8 O& c4 A* B! K8 Pset-current-plot "Trends-of-global-reputation"
* L$ T7 c. i$ {; L2 W- h* R8 g
' c, a! v& ~& G+ _% o/ Q) d; Bset-plot-x-range 0 xmax4 Q$ k, J$ N9 s
3 N. N7 Z5 B2 ?# t3 `/ i% I
set-plot-y-range 0.0 ymax* ]% \% t s2 g- E- s8 c- ?
end
; q+ a3 @, i: [' C7 R( O6 S2 e9 z: @8 S, E4 ^' Y& I- w' X7 E
to setup-plot3: F( w3 h2 b" c* f: ]) X4 F. L
6 A: }! p0 Q Aset-current-plot "Trends-of-credibility"
2 M+ i5 T' S" C$ o$ S- `. ?% N- }
& h$ o2 S5 J& gset-plot-x-range 0 xmax! k% u: v. e( j3 w2 n
. U4 A+ Z3 Z7 T8 Bset-plot-y-range 0.0 ymax
& f7 ^ r2 Y7 H7 O y# d; g( }end
: @$ ` X1 b1 k% W R3 g
, p/ ~& p+ r6 f* R# \: Mto do-plots
! V1 m$ N; M! c3 L2 `set-current-plot "Trends-of-Local-reputation"/ N3 N1 d2 x7 x/ s8 {: X3 n
set-current-plot-pen "Honest service"& L- @/ \* U7 \# |! p! d: b) L
end
! j& c4 E* ? n g
Q, V5 J* k" R# k! D7 a1 r[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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