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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0 F& V' C( A8 D& {
globals[3 T0 l! [" t; A* @3 `
xmax3 b' f7 @5 u! z5 f5 t' w% a. F
ymax
+ V% ?$ ]0 p4 w" ^4 W7 p1 p0 Oglobal-reputation-list+ [! a, ]2 }" V
: D; N3 C% w: }, l* h( W9 @
;;每一个turtle的全局声誉都存在此LIST中
' ]7 b3 y# N0 [ G' ], Hcredibility-list
9 N, c1 U1 R2 m' y, E;;每一个turtle的评价可信度. V) `* j" f! w1 q6 H, e
honest-service3 V9 L2 ?6 ~4 X. a
unhonest-service
& C" Y" {$ |/ f4 Y X: e+ t4 Goscillation+ T/ V1 g r/ f/ C+ t9 u0 P* K
rand-dynamic
/ C- ~0 h$ E/ m& p]
0 G7 B; z& T6 R$ s% y0 b" m* y
: m r+ T& f" G; L) Z/ w/ ]+ xturtles-own[" e7 p) j% u0 P. u8 o( G; O
trade-record-all
9 _/ q5 x0 f' ~# y6 e1 q4 B" o# E;;a list of lists,由trade-record-one组成2 p$ h3 g/ w# p6 Q) D
trade-record-one! a! V- q+ F7 m" P& b* U0 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) j: B* j2 F# ^4 t1 [
0 `1 F$ @+ @( N2 W1 s;;[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]]6 E0 q0 p3 ^5 F7 \0 P! A, I3 X2 O
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]8 ~$ p% J( ^2 X& t. J# 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
7 m7 P. L* t C0 [& {1 tneighbor-total# ~& u# H$ t& M/ \- m6 B
;;记录该turtle的邻居节点的数目
) @* R4 `* P% @. x* C+ Ptrade-time( e& d7 Q$ J5 @% a# l$ Z
;;当前发生交易的turtle的交易时间
2 n: }( E" n6 q( [6 Z3 Uappraise-give: }, Z+ g' t& s( W0 h6 x) q, S8 _
;;当前发生交易时给出的评价& v0 P3 s( U# y- g) Y5 f+ T% y1 ^( C
appraise-receive
% ?- [' X. k) c8 ^* u9 y;;当前发生交易时收到的评价: L* H4 A4 e2 A
appraise-time
2 U% C6 H5 r; K# |3 E3 `;;当前发生交易时的评价时间
1 Q( u7 F( C0 L, Q9 f; blocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 _0 g, }' c4 q4 X, Q0 d- Mtrade-times-total
4 }' w" X; I& Y( ] i;;与当前turtle的交易总次数5 ], r0 m* l B H- G* s/ q ?1 w
trade-money-total
5 p* }. t' P5 L;;与当前turtle的交易总金额
% \' o8 \* w, m+ G j( zlocal-reputation
" I, X. q2 L* Qglobal-reputation
- q& D$ c4 v% e9 t: ?credibility# g/ l0 ?9 [4 V+ P' G* o
;;评价可信度,每次交易后都需要更新- x; J* {8 s7 R9 R) M) }
credibility-all `9 r( k H. R* Z/ \$ ^+ P
;;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0 i* F% G4 e1 n3 p$ P* y
, i6 |7 m& b/ X6 g3 j& \
;;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: Z- V+ l' Q9 c9 h; b
credibility-one' i0 v5 f+ q( `+ @" |9 |: u
;;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 b5 `4 C( E+ m: Eglobal-proportion
4 _0 r ]- H2 F' ?! ]1 ~/ w# f! Dcustomer
; h9 v! B1 w6 l' z& d9 u/ _customer-no
! z4 Z1 P/ X# V3 ]2 l' z }trust-ok* K/ V- F4 g. F( G: x) D' V1 S
trade-record-one-len;;trade-record-one的长度
2 V; i# a+ W' |' f1 o& u k]
/ {( I" I9 s5 z1 K# x# T3 j
2 N( I4 ?5 z0 w/ e9 Q;;setup procedure s( F6 U* Q$ X$ ^+ {
" C* [3 l8 v6 |& C& s+ C
to setup* p4 f/ r+ M4 A9 _8 t4 l5 F
( c5 s n6 Q2 @$ Ica9 T) E4 M+ } |6 ?1 c/ R
/ C( I0 T3 [5 ^6 ^$ ]6 Hinitialize-settings' P$ r8 `) |5 a! m) U" u9 ]4 w- ^+ m
) \6 _- o; J/ i% acrt people [setup-turtles]
- c/ w. g4 L1 j: h* l6 J `+ a. _2 e- j! K6 E N& t2 D. K
reset-timer0 a& t; j, w7 o, r
4 b% I$ Y. Q8 [3 A, [# q( z
poll-class5 F6 M4 L8 z" P5 X+ m
: [* A Z& M8 S+ ?; Asetup-plots7 s- b! g) h( s h/ {% U. n
) E0 ^! e$ Z; @
do-plots9 F' Q4 g- ]" t9 E9 A
end, g* A0 ]/ Z" ^
1 X3 h" u& W% O$ l, g# S
to initialize-settings
% c& t* V# @% M' a7 b
& D8 K( p9 n, |* _) R8 kset global-reputation-list []
! N. Y+ R3 u: |% T# V# }" B5 F0 t! x
set credibility-list n-values people [0.5]
2 P" g, i% d- v# Y, u2 n% i7 p+ y) m+ { I9 G3 h- m+ \% d
set honest-service 06 B9 }9 _4 E7 t" g* o/ y# e
4 C# G! @: Q$ k: u0 K$ yset unhonest-service 0: k% Q8 o+ K; s+ v
' v9 O9 U+ b/ }3 n% ^set oscillation 00 P$ d7 c# ?3 x2 k: n
$ T w) [8 ^: ?3 B1 U: l
set rand-dynamic 0. X9 J7 H w6 J! i$ W. I: J+ A
end) ?3 E* V4 W& h
+ w p+ r& X+ ~. o* p+ Q, b
to setup-turtles
8 t2 X5 R/ }8 \/ M/ ?/ Vset shape "person"% z6 U6 B- J; Z: ]
setxy random-xcor random-ycor
1 K; Q9 \1 O$ E: |- {- @set trade-record-one []4 j5 ?2 \3 Z% S/ @ m
! Q! ]* d8 V& q0 a
set trade-record-all n-values people [(list (? + 1) 0 0)] 1 C. c5 ] M0 r, |" F* I& T
& J& V$ l$ v7 X) l* c& |set trade-record-current []* A. i, |0 a+ l0 Q
set credibility-receive []
. R( n; H/ L8 S0 y; }3 L- Nset local-reputation 0.50 h0 r) C3 R6 H
set neighbor-total 0
% z z) u( O3 a+ ?: Gset trade-times-total 0
3 M* q" Q6 U! [) k8 N1 f1 ^" k$ uset trade-money-total 0
/ ]! \9 W% B' w" z/ ~6 pset customer nobody2 z& X& F% u! _, `4 Y: x4 R' o
set credibility-all n-values people [creat-credibility]
* z- G* `; k& u" nset credibility n-values people [-1]
7 N3 T- e. F* Rget-color
. t! n/ Q! D) H. t% s; F
0 K9 o( I( q! d7 |end/ S5 H4 e9 {' H8 R6 l8 V7 q0 n
8 \) W3 X" J5 |/ X' V( ^4 Mto-report creat-credibility
& g( R) }1 N0 a: Zreport n-values people [0.5]: ^3 |7 z' {% D
end
2 Q; o% M+ {7 V) P5 F1 o* b9 H
5 ^9 A" {* O( P& _to setup-plots. n/ k& _, f+ ~
; ?% @- f* L0 y0 d; K: g' Lset xmax 30' Z2 I+ T6 ~2 e# R
( B/ i- M- @) F0 O4 v1 ^9 w. Iset ymax 1.0
8 T/ s# b" T2 I: Y7 k1 X9 a/ k# J! k8 |" j, m. p. j
clear-all-plots" i+ R3 Q3 I& a7 G
' L! j, b# n9 t, y& k
setup-plot13 X2 B9 l2 `7 j, X6 c
- \6 h9 p; X/ Z6 d* K5 zsetup-plot28 K( G- P0 w$ T2 k% \( L
# I: \1 [6 _6 T
setup-plot3
8 [- z0 N" ]7 h: O: I( v0 l2 u) \end% r/ M; B4 Z, z, a6 O. b8 ~
! {5 D& |" ~) {- X( y% t
;;run time procedures% Q0 _: b7 z, M
$ h* q( `$ s+ G! F! {9 s( [
to go
* I, i- Q9 k" T6 i* s9 F: m* O& Z5 H' a5 W' H0 O# n
ask turtles [do-business]
1 c C! i2 k \4 rend
$ H) |; g0 ^# A$ }# ~2 ~
2 ?8 U7 Y5 a0 p& m& ito do-business $ {8 B5 C2 F9 l
$ }' _3 \3 i4 L- s1 ?0 a8 ^7 s* o' K2 K! C+ h- @+ M" B; H: ~) w2 F0 ~
rt random 3606 ]0 D* ]- u) y" L5 c
3 l s _1 t. X: b6 T. a i! W( O" z
fd 1' Z2 c: h/ v0 z; M( G
- |- C/ u4 r& oifelse(other turtles-here != nobody)[
`- I! r8 ~& W& w2 z% l4 M% J" M: F4 J
set customer one-of other turtles-here3 h; ^) Z% b: O
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;; set [customer] of customer myself
$ }' o2 i$ ?2 ~- r! u. d* h* @5 s2 t$ h u0 |7 ~# Z
set [trade-record-one] of self item (([who] of customer) - 1)
& f" g$ q+ t% D. l[trade-record-all]of self
# T. h( M# T) m4 }4 I9 w;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
4 m, G) ?4 L) E, W3 y0 D' f6 x( \
6 n8 O# b4 G8 Eset [trade-record-one] of customer item (([who] of self) - 1)
3 T+ F: n# D+ V: e& n2 B, H! h[trade-record-all]of customer* |5 T' D6 ]9 }0 }3 l5 k- l
0 c% A6 B3 T; Xset [trade-record-one-len] of self length [trade-record-one] of self9 [9 L* t. K* P5 C6 K. P
: d; A4 I7 O7 o* h; Nset trade-record-current( list (timer) (random money-upper-limit))$ F0 W7 d; u1 r% \7 T
; n/ D8 G$ j# O- J7 j5 I& w% Gask self [do-trust]) P) o1 q. m! D) m; T. j, f1 B
;;先求i对j的信任度4 B6 l( s3 R3 O+ Z2 F
" g/ d) S7 M, D, O7 Wif ([trust-ok] of self)5 g. v- H7 d) T/ t3 A7 H4 e
;;根据i对j的信任度来决定是否与j进行交易[: D( Y# S" f+ Z; q
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
1 e' U7 y1 @' \- }) m7 g) O
( h+ Q8 J- f; s[
/ h! Z) b0 W+ b' L/ }$ x
. i2 X& j" Z' J3 hdo-trade* z, a- h2 T8 [4 y, b5 j
2 Q/ E4 G2 A' _/ X
update-credibility-ijl
: M$ [0 z; z+ D" U' ?3 I: f: X# s3 T' x
" r; i: c% f. T; C9 H1 ]8 ~* l% ~update-credibility-list3 y& \6 l h" ?: _
- e6 b8 ^6 `: p3 l; [
) m$ `% H7 ]1 d4 _+ ^: H) G* ]update-global-reputation-list
- }$ M, H- r+ }/ D) m" I# C4 @- F# \' c* M' U: y
poll-class5 J6 k3 J: w) ]/ C8 C
9 D' k, q( z# h2 C* t' Yget-color. m+ P r) G. P- G/ Q
$ S- U$ v, U4 h( L2 ]
]]/ o5 u- A6 S; a. u$ h: a
6 m: s+ r# f; a: _; b ]6 h;;如果所得的信任度满足条件,则进行交易) A6 m6 I( ]$ R1 W" |
" q+ e9 c. p! c9 `5 g3 C
[
6 D3 O# ]& E; v( `3 S1 z9 C- Y! u5 X! U+ X- K
rt random 360
( d% H0 \9 y) W& `$ y- @3 q0 j" V6 c( Z5 e
fd 1
' `) q/ y# ?5 T( L+ H8 N! Q/ P- x, l: r; o4 N# V( B
]
& H' @/ b( y* h1 g
+ j4 `) f# g9 @ c7 pend
6 N/ {0 T+ L; |. w! F% t8 B$ q, x, l! y8 c/ p8 J/ U# F# Y
to do-trust
" P# T" U* i6 k! w& {( wset trust-ok False
p, k8 K4 @8 t/ q# S% h% h# v! D# U3 K( q
0 ?. R% w# _; P/ }
let max-trade-times 0
; I% x. A' w0 h: e: |foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: H- W0 g' F0 }! m) v
let max-trade-money 0% w" M1 B( e" w
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]. s. I( [5 W; @6 k9 M
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
. m, {- q% ]3 y2 M0 z t# `1 [8 ?* x4 @! ^
s+ ?1 Z- w3 p! o: c1 r
get-global-proportion; q( _' f: j7 q: P3 R: y2 J$ V
let trust-value
9 a+ E. T+ I" m# p( {' U/ Vlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
1 G/ ]' u/ B& {) s% D& r% q Pif(trust-value > trade-trust-value)$ D$ g) J5 K7 @1 f
[set trust-ok true]
- h- M+ Y# Q- {) Hend% m7 w$ z6 V# y* u: {' g
+ Z" |) A6 Y1 P9 b `to get-global-proportion
! l% ?% u3 o% pifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
: O1 {- o# k8 [6 @' f% p9 m) z[set global-proportion 0]' {% q! U+ m' F8 m4 b
[let i 05 _5 S5 O. e$ H" p1 n$ p6 c
let sum-money 0
9 N) u% R) e- a: h* T* U9 Kwhile[ i < people]% k+ J" P" J( c ^' b* s0 F4 }
[
" @- W- u* P. ? zif( length (item i1 u" k; I3 \7 [. ~ ~! k
[trade-record-all] of customer) > 3 )
7 J$ t' m- g' `, L[
: E& u% Y) C+ eset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
/ e* E1 i5 f' i. |4 u9 _; ^1 _( y& s]
9 J Y' p) _+ w6 @4 @4 `3 P]
7 a; r; u; O4 vlet j 0
+ K! w9 B! [0 X) Olet note 0# Q; T) g1 R% g. O4 ?
while[ j < people]
6 F" y2 ~0 M$ ~ T[) [& }0 T. v" N
if( length (item i
J5 H+ p0 T. ^ _5 Q: |4 O[trade-record-all] of customer) > 3 )6 R) @( n* s2 N# E
[' S7 h) x4 K/ A2 \
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
' X5 v3 C+ _. J5 L2 ~& {6 w4 T. I[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! E- T0 K* f/ q/ i4 N: U' K g
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]5 q, o5 ~' x) g( O4 O
]
7 m, s) ?6 I$ |, R8 i1 |: L]
; B: o. T9 V4 o8 I5 eset global-proportion note- ~7 Y7 G) l6 G
]% Z( [" Q0 Z6 B6 H
end
9 Q7 S. Y" ]0 }* q3 Q' z, W
5 S* ]" y/ i1 U) q$ V6 J1 ato do-trade C) h b" i. i2 {9 {1 r9 ~
;;这个过程实际上是给双方作出评价的过程
. C+ t8 E" h% h, w! F2 `/ cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
5 V# |" A" Z: F# h! Q, M. pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% [4 \" l+ w2 R0 D' c. zset trade-record-current lput(timer) trade-record-current, Y. J0 ]4 @, _- w
;;评价时间
. u' W& T& G' F S: H' Z# u3 J5 _ask myself [6 y: S+ Y5 D+ e' E
update-local-reputation
) q& U( O6 S( |8 v$ l8 w' Eset trade-record-current lput([local-reputation] of myself) trade-record-current, N+ r+ F: ?4 C% y( ^, n
]8 D( y% m: ?! h9 e3 T
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself* {3 |, d% \) R% v* E3 g& j
;;将此次交易的记录加入到trade-record-one中
2 s. ~" n( q& [set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)/ a2 l4 r3 M9 Z. v
let note (item 2 trade-record-current ): D, C0 e# j, x! e
set trade-record-current5 e9 |) q" q" K- @" s0 U
(replace-item 2 trade-record-current (item 3 trade-record-current))
+ F/ Z4 [! p. R' J: o! g; Z6 Iset trade-record-current# H$ z+ G- ^2 O% M. Y3 r& w
(replace-item 3 trade-record-current note)( }0 _1 h, I6 O1 |" {
& A# X: u: }6 n/ N* V
g+ K A/ E2 n V9 r5 Xask customer [7 Q0 K4 K4 j, Q' Z6 R
update-local-reputation! f" ]8 R2 X1 F& g
set trade-record-current
9 W6 E% `3 ]/ `0 e(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
0 r3 q I" v! u9 g( m]3 l* R1 {9 K- Q# t
?9 U; v2 U% {2 n# D2 @- u5 [% B5 d& x) E' Y( u' j, ~
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 R$ x a( S) w8 v/ W: R
/ n2 ]/ \+ N& M$ _set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
" q% J8 S/ w. ], w& E;;将此次交易的记录加入到customer的trade-record-all中6 S" ?1 u I: D7 \. V
end3 V2 Z: X) H7 M9 D& z! e9 u
' j% ~, J& i i
to update-local-reputation
5 ]3 u0 v! ?9 @# X; h" I% oset [trade-record-one-len] of myself length [trade-record-one] of myself" c- D& y- v/ V6 y4 e. w9 g' }" E! h: l
% A/ E5 Y- h1 g1 |
' J) N% h( F: o! p# S% N6 W% q
;;if [trade-record-one-len] of myself > 3
0 n/ Y( R6 v, s9 Y: vupdate-neighbor-total
/ j" V8 Z/ k' |2 @( ]) h, h3 L;;更新邻居节点的数目,在此进行
' e* C2 b: m0 ^* U6 z/ E) Tlet i 3: Q6 O t1 [/ w* x; M- ^! S7 H
let sum-time 0
5 x5 u0 ~$ _" j( @1 B1 U) R. K& b ^! Kwhile[i < [trade-record-one-len] of myself]
. w& y# ? n: U8 O# [. \[
1 Q( L8 S! o( t" s4 Q% }) Aset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
5 Y" g. e* u+ J0 f$ ]+ h+ nset i7 H. N! h/ e1 S+ V# X0 r# p0 J
( i + 1)4 q/ s2 B- x s' y# j
]
& v# Q: r4 [* W9 r1 i; s8 |0 A5 @let j 3, ?4 ]6 `& d0 D0 Y3 N' A( u3 M& Z
let sum-money 0
& T- z3 n8 w# ~while[j < [trade-record-one-len] of myself]( s, o4 q0 r V1 H/ \
[' D/ r! ^6 X8 K% 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)$ W6 D p: H3 D7 j& n7 ]
set j
8 m0 r" i8 g' o( j + 1)+ R& P- e. V$ z' X/ L
]0 h5 Q" ^% _* J! m" i0 S4 X
let k 3
3 Y% L3 j9 ~+ S5 hlet power 08 O _. |9 w1 t$ j
let local 06 @5 I0 ~$ o0 R
while [k <[trade-record-one-len] of myself]# {' H( ?# i+ w4 W- ]# B
[
/ @1 w$ P" q8 _! O5 h( ~) r' xset 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)
& V* v8 e/ d% Pset k (k + 1)0 J7 @; w6 w) u$ c
]
1 n7 g7 E1 Y0 Oset [local-reputation] of myself (local)8 e1 ?' r5 u$ q7 w
end X3 _5 ^1 g' h3 B# {) |
7 i1 t% L0 {$ X9 E U; z( g% l
to update-neighbor-total
, w9 G, v: [; r; ~/ Z
- k& @( c' z, [ i! qif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
/ j. ~. j' J. N5 s' T% \/ P9 `7 @$ j# V( f6 a" }# n. P' v( |: e" a
2 x2 u: Q9 ]5 ~* p; C' d
end! _2 d$ r1 e9 V: t
$ B5 J7 c' k+ h/ ?3 E) M& yto update-credibility-ijl 6 u/ V3 W( i# @$ ?, ~; \
# y8 g9 ^. k' n; S! o;;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。& d# u2 S/ G: u5 N
let l 0
4 V F2 b; G! d e$ ~while[ l < people ]2 H1 P3 v" p: @* X& X7 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
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7 F. p c/ j8 v& jlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; O! C4 c9 Z+ o& V1 Lif (trade-record-one-j-l-len > 3)
1 o j' _3 V8 e% i[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
" w( I$ Y* z4 l. w: a8 Ylet i 3
: _6 [ k) y# X/ O% G# clet sum-time 0" U" I! e2 ~8 |: R' @3 X5 ~
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
% b# S5 Z# W2 l" _1 I0 Yset i
% n. J, f, `* k7 n' j8 f7 z( i + 1)
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let credibility-i-j-l 0! S! k1 h3 M) O/ B1 n
;;i评价(j对jl的评价)1 r: x4 |" y3 d1 _5 t& K
let j 3
' n; H" t3 |5 Z: l0 nlet k 4
0 Q/ j! j, i( c1 A$ a' H, X9 ^! fwhile[j < trade-record-one-len]9 B3 x( d/ A! z, F' D
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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: S2 F r$ `# }, N3 Q
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)
5 t# m7 r. k! [# M0 uset j( e* x7 d* K% |) i
( j + 1)6 A5 E) y. A7 Y! Z' Y+ m5 W0 Q
]
) |+ ~2 T; B0 ^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 ))6 F0 x2 q9 }4 M- D7 `
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8 A& Z9 j: k, j9 x! L# ~! R* [) Slet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 I5 Z {3 z0 ^- @% O6 q N% X. B;;及时更新i对l的评价质量的评价
4 D! E* \ @0 k" z0 c8 kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 _. q1 |! i+ T, [/ G9 f$ j; \! M
set l (l + 1)
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end
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to update-credibility-list) c* o. D& g- G, p% Q3 U
let i 0% Y9 R9 o6 b, M2 L% f4 ]
while[i < people]
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let j 0& n1 {$ |( l! |" T1 H7 @
let note 09 ~2 f: f1 w! \
let k 0$ }3 ^$ j1 N) a% Q! W" t4 Z7 ~
;;计作出过评价的邻居节点的数目
: o9 s* `1 M5 z, @/ bwhile[j < people]
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if (item j( [credibility] of turtle (i + 1)) != -1)
- B2 [/ _0 } b- D;;判断是否给本turtle的评价质量做出过评价的节点; m0 O4 p% }/ e1 E# R. ?4 U
[set note (note + item j ([credibility]of turtle (i + 1)))8 a. \( N9 M3 U& _2 ?: b
;;*(exp (-(people - 2)))/(people - 2))]6 k% n+ X8 {# K/ d! J$ v0 w
set k (k + 1)% P q3 {3 @/ }7 o2 |
]
) l8 n. K; s; ?1 @/ }set j (j + 1)
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set note (note *(exp (- (1 / k)))/ k)+ a: Y) Y) H2 U) q- `" g. J0 c2 F
set credibility-list (replace-item i credibility-list note)
" I8 |. n/ E( y" q9 k4 n6 V, M, {set i (i + 1). J$ j- y7 S6 o0 \) d
]
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to update-global-reputation-list
. D7 t% \- j: c# x4 K+ f+ ^let j 0" m N4 j/ I$ g! M U; } l5 Q8 Y
while[j < people]" ?2 o" c5 Q& k9 _, N% u i5 x4 n
[7 K$ w/ I" u% U7 \) c
let new 0) G; t$ E+ E9 A
;;暂存新的一个全局声誉! ~9 r$ k- v7 x+ s$ p
let i 0% t) y1 ?' v5 j! h. }' p; s" \7 O; R
let sum-money 0
# u" H7 w3 g% ] jlet credibility-money 06 v9 T$ i* B( e/ y9 ^+ G3 R+ n, }* i
while [i < people]- K+ v0 X- e! |8 H8 f9 L
[
8 I& D! F/ a7 h- rset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))% C$ ?" t8 |2 d& P! y3 _" @6 B# }
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))4 T8 l5 A! d+ J
set i (i + 1)+ j/ S; i4 O7 [
]
* o* e7 A- U0 l6 D' Ilet k 0
& ~# s$ B# v& x7 J. U% @let new1 01 q' N4 c' Z, y+ ~% e
while [k < people]
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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)
9 O2 S. n; N% O/ Kset k (k + 1)
$ R5 G- T3 i6 e4 X]
3 [" e) m9 Q+ V2 e' d9 wset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) : A; q1 {, Y! V7 H! N8 W
set global-reputation-list (replace-item j global-reputation-list new)# G/ B2 R6 C' @0 j6 a. _: y
set j (j + 1)
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5 S6 Y8 M5 y. g% Q% O6 V$ X9 T. @( Zend
9 w# O$ X# w! L7 q/ R+ ~" B* E8 ~; X# _, F0 q3 ]! x' R8 B
! [3 }. j! V. X, g* N5 d" J
# v4 T+ z" }" P$ J! Gto get-color
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set color blue4 i9 ^0 V' N4 |; B
end
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to poll-class/ g! Z T' }. b1 @3 n2 K' |
end
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to setup-plot1
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0 v$ D2 Q: |* d& K0 }8 O) `9 H8 n$ c& Vset-current-plot "Trends-of-Local-reputation"
& [3 h7 Z' y7 X2 _# k7 {
0 X1 n/ J) h1 z Xset-plot-x-range 0 xmax6 l7 e+ i' }0 b$ h2 v9 r+ I
) ^* t/ G$ V0 N( l) Gset-plot-y-range 0.0 ymax
8 L* Q0 ^& H; E$ L0 fend, f; U3 }' V3 q4 y
7 Z* Y0 i* D' @6 l; Tto setup-plot2
, z7 _7 v) l2 l, @. t8 `- v, Y/ f5 S$ K
set-current-plot "Trends-of-global-reputation"
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+ M( |; z. ~2 Y# {set-plot-x-range 0 xmax/ L6 Q( F$ {1 c6 A
8 h }7 J' @0 d m# Q+ z+ L+ [set-plot-y-range 0.0 ymax- |# d" n6 j/ l2 u a! T) ~
end; L5 y0 C7 ], r" r" ^; S
# p3 L" E+ O% B9 b4 Q0 Cto setup-plot3. r' G3 v! z, q) \ r% |- _
( O) x/ h o0 Jset-current-plot "Trends-of-credibility"* l+ T, ]' I$ v5 [
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set-plot-x-range 0 xmax
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. |4 y a, j: O' M, U% Rset-plot-y-range 0.0 ymax7 {1 G% p0 ^& S) i( K! Q
end9 v1 L$ X1 p) h
* ] K1 j' [. s2 U* ~: j2 [8 ?/ dto do-plots
+ w& ^( _3 ?8 ]1 \set-current-plot "Trends-of-Local-reputation"
/ U0 i5 j/ |6 p" m+ dset-current-plot-pen "Honest service"* c6 X5 a8 N3 v; Y; l3 r% n8 K
end
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5 _/ O+ w, h1 I5 v8 ~+ t4 t# S[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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