|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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
# c( ?7 z" }1 x2 s* @globals[ |, Y) F, Z( S% G
xmax; D3 w9 i$ g: V/ |, _" E0 K
ymax
3 A' N! _* n7 h! ?! }5 C: p# Uglobal-reputation-list: ~+ ?- G( q, k5 g
% o2 b3 n" ~ i, ~" m) m;;每一个turtle的全局声誉都存在此LIST中4 S' H/ y) j" b0 N, z
credibility-list
$ R% F. E {8 Q# ^- t" F8 U: P;;每一个turtle的评价可信度% p+ u0 Q0 z7 `1 R. U: H$ U
honest-service, |$ K3 B( r5 ?6 P4 _
unhonest-service: m3 _; t5 i; q: k4 T
oscillation. T- l# y3 }- F% d" d( A
rand-dynamic
& q; v2 E t% d4 w( z7 E1 F3 F]/ q2 B$ h4 K3 y. H+ c! u
1 E: y7 H. C8 v! z3 T: j: }
turtles-own[
* t0 h* m- y9 |4 |, Qtrade-record-all
b5 e/ D2 L: x) n5 I;;a list of lists,由trade-record-one组成6 n: J1 V! L6 Z! Q1 N
trade-record-one3 ~( e+ {( X; @7 H* _" 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
- e! @" M* l5 A K( j8 g! t: d. c8 S D. C0 S3 @+ l
;;[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]]
3 T3 u) \3 l2 j% qtrade-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]/ k5 h0 ~/ X1 s3 ]; u7 m
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list2 b% g& I) G+ P6 C
neighbor-total
) H* b; C+ z: H0 I# i$ Y;;记录该turtle的邻居节点的数目
- M8 G- v6 ^& a* \1 qtrade-time1 s) ?& y" o4 I- h* J/ t% p
;;当前发生交易的turtle的交易时间
3 u) B, f3 K0 z$ T% Z; n& R$ L; Aappraise-give% V# }% V6 J( e: a& A
;;当前发生交易时给出的评价
3 w1 f! q) `- T% h vappraise-receive
. B5 Q; l5 w, G) E# @) ?;;当前发生交易时收到的评价5 ~& v: K) }6 c8 U
appraise-time
% o1 L Y& O R9 [+ y9 V;;当前发生交易时的评价时间9 H4 b9 A$ e, U7 d% n! c
local-reputation-now;;此次交易后相对于对方turtle的局部声誉" q3 d) Z; B0 c5 l
trade-times-total
1 m* M$ k/ F- m8 H6 | H9 V$ M; |;;与当前turtle的交易总次数% h: I: Y& K# }: D4 K' q1 R3 i
trade-money-total" [, C% C0 D: I0 L& ]
;;与当前turtle的交易总金额- D8 r, a! I+ K: {( P X
local-reputation
|& O: a& b" K) gglobal-reputation! |$ V, t$ x7 s3 O: c0 a5 J7 P
credibility
2 b* g# I) n/ Q( j+ K. X;;评价可信度,每次交易后都需要更新0 Y, \$ H' U/ J* ^+ i
credibility-all
5 s4 @8 u, P, i8 u0 b6 A;;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+ T' i4 ]' V* \1 o/ W" ?' J- a: N
% b1 t- Z" R/ U& ^3 s' w8 V;;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
, W, m( O' i3 _2 ~8 L. G# Jcredibility-one
5 ^7 Q5 D. y8 K;;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 J' S" E6 `* b0 M8 Q
global-proportion
# {5 l# E( k+ b0 W6 [customer
1 p0 V W6 a% m* Z5 H; g! n5 _customer-no
+ Y; }3 B" R5 v d8 k1 gtrust-ok
' E; p* o4 v* Xtrade-record-one-len;;trade-record-one的长度) q# @* c! b# B( {3 }& I# v
]- E4 v, G$ O' N
! c! w: }" h) Z7 W
;;setup procedure
( Q5 Z4 Z. h N7 k2 p; G7 }+ S. { B b: M2 W" C% D
to setup
: p; a# F6 ^: v s' `! p, a( t1 ]2 Q$ D+ s8 v- L
ca
8 v3 F" l# f9 P0 ~( z# r, G" y! R; ]- o+ w/ e# B( Y$ }& \' f
initialize-settings
# {$ e u6 c5 o8 Y. Q, o8 \7 B+ T; o" w
crt people [setup-turtles]
0 j( x7 _9 H; r; L3 T: ^
* @$ i/ r* m6 }5 m, Creset-timer7 t7 i$ \6 T/ y
* [/ C+ n8 n: H/ Bpoll-class, [: L) i7 P1 B& h) p* e) A, _
% L; Q; j9 X5 n, P2 B" o4 H
setup-plots
" o: u! J1 z9 d4 @3 z9 R9 m) a' u0 @3 {) \6 h& b
do-plots# y+ g7 }' t l- I3 y; M
end
# D& d) q2 j1 j6 B* S. Y1 m
, c/ O4 t1 e! S7 Q0 `* ~to initialize-settings
3 E; ^, N$ ?- k% V6 ?0 v8 F) m; z" P" g" c" ~
set global-reputation-list []9 r6 E5 u; ~( a2 {% t9 |3 q/ S
1 Y% F/ I, w: b! M
set credibility-list n-values people [0.5]1 w# b. @! {+ W
9 @% T2 v! _1 U2 Z5 ]! e
set honest-service 0, ~7 I) ?7 W" n5 ~$ a& ]) E
6 q) x( n8 c1 ^ d; @
set unhonest-service 0) u' D0 _& I1 }# c1 Q+ ]. z
- l4 y- A" o A; t1 c
set oscillation 0
6 r; y+ J) _( h) d0 c' S0 I
& w5 [* ^- b5 n5 fset rand-dynamic 0
2 x) Q5 c- r. R0 Aend2 O b$ r( H- ^% U) B: j% i. s
# Q! N" t5 e% c3 b+ x! C: J6 j" Qto setup-turtles ; f3 E; `3 S( u, \( i2 N2 l( z
set shape "person"1 M ~; m9 d. H, |+ }4 x
setxy random-xcor random-ycor
# H: ]0 v# R& ~* K& d- Z" ]set trade-record-one []3 n/ @" a4 k$ P' R1 d; l7 X
) [! G9 y8 o# Z R
set trade-record-all n-values people [(list (? + 1) 0 0)] 0 f# T5 d: [9 e! H
2 s# M( q. q+ d. U9 b" |/ Y) j
set trade-record-current []
) H P( S: X/ ~# C8 R7 L7 [set credibility-receive []
+ H2 q; f- F# N, v5 \set local-reputation 0.5
$ p" L& O. S) k: E% f5 l4 _0 ~set neighbor-total 0
0 _. X' C, c6 D2 { qset trade-times-total 09 w' \+ z0 y3 e. v
set trade-money-total 0
- ?5 i- s6 K. z7 D8 Yset customer nobody
4 G+ v A) X/ d' V7 k0 Uset credibility-all n-values people [creat-credibility]0 q8 o* N! q2 C- l
set credibility n-values people [-1]5 {% E- m8 P8 U9 h) ?9 n
get-color- p0 G& O O! J. ` ]& }2 H5 ^
' F6 ^1 U+ ?6 H$ |5 E
end/ X/ f1 D2 R, s9 v! U
( O) E$ y; Z* R( dto-report creat-credibility/ J$ ~5 ^3 z& h0 {$ P4 }
report n-values people [0.5]
" L, J, \% ]2 J& u; ~" [' y0 lend
5 U# C# }* s) K6 H0 ~
; y) { ^8 p x+ @1 Y/ f4 M. lto setup-plots: c( F7 F! k) q0 M) L, n
5 Q* `+ k0 x/ E s+ w2 j9 R
set xmax 30: A( t6 f* v$ `, U5 q
* H/ P! V) ?9 I, b; w7 ]7 X" cset ymax 1.0
J- s5 k1 H* l2 {. N+ u' L9 S4 U2 p/ `% d: R
clear-all-plots& g; n$ d6 Z* k4 M" ^) L* ?
1 O/ O7 s2 R) j( O! G7 d2 ?setup-plot19 U, ^8 O$ u% E; X) r) w
& w! N1 M7 ]+ @2 fsetup-plot2# ~6 f3 g5 |1 H1 c6 T/ E+ u
5 t1 R3 H! r, k- _, y" _; b; \
setup-plot3+ n9 G5 i% I9 B& Z L9 K7 V4 N
end
1 k& @$ W) ?( }& ^3 k2 f$ n$ A, B4 T8 [' U
;;run time procedures
# M; d, Q- _+ `- z2 v1 q% a s: ?' u
to go* ^( h& q" z V3 q
+ m! K" r. J( I# z, z/ R+ l
ask turtles [do-business]
' `0 y) ]5 j1 E, K! bend
! m3 G; r% J! a0 o$ Z9 c/ M' |, m4 f0 l8 G4 Z2 r. N
to do-business
5 I5 {6 ~) N5 P) q. f* H* ^
) a7 q% H9 M1 n" p5 i& o. r4 j% J9 m
rt random 360
; [" j% h. p% ^7 q* _: M
6 R+ p5 n3 \3 }fd 1& V7 P) f& P) u7 ]
+ U5 L' w. u% e1 P
ifelse(other turtles-here != nobody)[
. s8 U, \- h& |. L5 \ f! T# \( g9 y
set customer one-of other turtles-here$ K$ O2 J6 c: J6 x f
) ~0 c4 j% Q; j6 R;; set [customer] of customer myself l; y. q/ |; S
- d, ?: g) _8 P( Vset [trade-record-one] of self item (([who] of customer) - 1)
^8 ?* L+ l5 |1 d0 d[trade-record-all]of self8 n' x$ g9 U) o) N( M
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self+ `0 L- W/ m- R) q8 U R. u, S6 A0 Z
. a5 u( A% b9 `* k n- A
set [trade-record-one] of customer item (([who] of self) - 1)! g( G# v& i, b
[trade-record-all]of customer
) u& @0 L: p( d; a4 q5 H! j1 U0 {5 h
set [trade-record-one-len] of self length [trade-record-one] of self
9 ?% q! N; c, f+ b% g, H( ?' G2 Q) U" j, q
set trade-record-current( list (timer) (random money-upper-limit))/ |4 Y* p! j7 Q! d. V! q3 K
2 }# T; @. i8 ]5 P0 {- P, q ^
ask self [do-trust]. D1 H) I+ ?# _4 s j
;;先求i对j的信任度
, y+ h' ?( y2 a, h$ F! p8 j
. L+ s" o& G* ?+ T8 M3 vif ([trust-ok] of self)
# F, w& v1 U, D% K" ~;;根据i对j的信任度来决定是否与j进行交易[
( Y6 z2 G! }+ g4 |$ P0 aask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 H" p$ v( `3 l5 w+ d: }4 `
' {1 g+ ]8 G! c3 A k[ X9 z; {$ t5 U2 d0 G$ n4 F: W+ `
- }$ ~. e, {! v2 F; Q: @/ x
do-trade
" }2 s+ b9 J- Z9 Q; O& _7 c$ ]# p5 L7 H; P
update-credibility-ijl
8 L7 l M( C+ n5 V! y3 E* U4 ]! i$ ^0 i" s# o1 }4 z. H. E7 d
update-credibility-list
& l) ^# o# f* e7 W; s9 f
: m, V% c- Y% k* q. }. F+ x" I* G& t/ w2 _
update-global-reputation-list
% s8 }' g R4 Z( J* V# H4 @0 B6 d* N; @' I/ g5 s" U
poll-class( t" H n7 R' e
5 V& I- _1 Y* @9 k. S- R
get-color
% h/ q4 M3 W+ D
. ?5 Y# n+ V w4 J: X" z# }5 `; u1 U( V]]
3 I9 Y3 N1 O g b. D7 i' b
$ `0 F8 u4 l2 h! [% b;;如果所得的信任度满足条件,则进行交易0 L% r5 i7 I5 h5 I: j9 \
) f. s; }4 J$ r[
# p. g/ }+ e0 o. \( p0 Z
. j$ ^3 {3 Z2 Q/ I3 X% e4 f5 Hrt random 360
* i g) J% X* N/ F0 O
4 v2 ]- b/ U* ?4 I5 U" Z! W9 jfd 1
' x4 |4 ]0 u) g
% C; e8 }) B8 V( I @4 j- o]; A, f. G, C' C4 `
% u0 J- a$ ~# J2 @3 Fend. F, B3 {, \$ B- X) A0 a
4 F( N" l7 p5 c" r$ f) Ito do-trust
" V9 X/ X# z! b `& rset trust-ok False
% I, ^5 d( ]0 q4 p8 N3 F+ R# b" v9 F( d; o
- W b. U0 ?. w! o4 ~4 @
let max-trade-times 0
) z& ^- U( F6 o4 P" s. @+ dforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]1 u2 y2 R+ U; E' s% G& j( B# D
let max-trade-money 0
m d% w5 Y7 ]$ Y9 gforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]& K# @/ K* y2 j9 t6 {
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))/ i, m6 D+ K5 f, Z+ E
& p. d4 M M4 f: ^- n1 S6 V+ a7 p9 {
4 S# @; i+ s9 ^+ C8 ~3 ^get-global-proportion
* ^$ p0 `( V8 T( O7 flet trust-value
1 w+ N/ G4 ]% S% v3 y" _9 Blocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)4 i! ^+ c4 V* Q8 [8 C% \4 e6 K0 [
if(trust-value > trade-trust-value)1 o: L0 [ U4 U; T5 X( s8 M
[set trust-ok true]
# n& X, m% o. P8 _$ S, `end
% t3 h7 i, a! `8 H# W6 H& ?3 E1 t7 e3 v' r+ r; P7 v4 A
to get-global-proportion3 J) l' i1 U9 A* c5 r, i, l% Z7 [; J
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3); p% I5 q) B- {3 [$ t. }1 e
[set global-proportion 0]. }2 g+ Q. |- Z, O% t4 M
[let i 0
1 y& f# [+ x( |. w8 o: Tlet sum-money 0
* s# V0 e- o) jwhile[ i < people]
h6 Z: _$ m+ k7 ][
" p0 k+ e" R8 m) v, X$ sif( length (item i
+ U& b1 L" l5 [% D& _[trade-record-all] of customer) > 3 )) _0 f" c) e& i8 s3 Z
[
4 }5 u5 z# I6 P& U- u' sset sum-money (sum-money + item 2(item i [trade-record-all] of myself))* g- P. n5 g+ V
]
/ t1 X) Z3 N+ e4 Z8 Q]
0 w( Q0 @( A! u5 s, V0 c+ b2 Zlet j 0
( S1 M: j3 Y; R( n3 Wlet note 0' k% C* P$ }3 I
while[ j < people]* P) U" r! d2 T! N" P+ C$ C( b
[* a8 u+ u+ ]& e$ Q
if( length (item i4 j% |- l% ]. F( S% I
[trade-record-all] of customer) > 3 )
8 r3 K; R6 j% G l; R[
# H5 ~' e: z9 ~: ~1 ~1 K3 S0 x% zifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
$ b( J# o. Z+ F" f6 K) F; O[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]& {7 v# }4 I. M/ e: c+ }: _
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]/ n0 R7 J8 B5 d$ t
]
% T5 H, G* H# h( e, ~]0 P9 Q; Q y1 C" I2 y
set global-proportion note
7 e+ R5 i, F9 e2 O% Z]6 |+ {$ b2 f+ ?! |
end, q2 }2 v& s; C
1 _; ]3 x e9 {; i" \to do-trade
$ h7 N3 R2 e M' I;;这个过程实际上是给双方作出评价的过程
! c5 t( S+ B& t+ t. m4 \3 }set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
! e0 s, A" y5 M/ Gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价6 t o7 O6 m7 J% S" z2 ?
set trade-record-current lput(timer) trade-record-current
% n# B5 F- ^' Q1 t' W) A. B/ ];;评价时间
9 z* s4 h) p/ P4 t$ Jask myself [
, S/ F- }; P/ z; ^update-local-reputation
! \; j/ w2 I+ k9 ^ u# Cset trade-record-current lput([local-reputation] of myself) trade-record-current; v* T- K' E( c. b
]
& r, z0 @' _4 ^+ ^set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself5 b* A* p+ a8 I
;;将此次交易的记录加入到trade-record-one中# ~% q0 g. |, p8 T& J; h
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)( q4 p' K1 Z+ C6 S1 a* x8 n d
let note (item 2 trade-record-current )
& e. q8 M; W% v- B' T$ C& X7 O5 Tset trade-record-current0 [' W- O2 Z0 S+ p' t n8 N
(replace-item 2 trade-record-current (item 3 trade-record-current))7 Q8 Z9 M2 H5 f) k: r
set trade-record-current, m2 `( E) y D
(replace-item 3 trade-record-current note)1 B4 G+ U. U2 I3 l% E4 o
$ h& H( F& K! M4 m% S
& o: a( k4 ~# w) y2 Qask customer [
% s' [& T* c! W: X! n8 ^" N+ ]update-local-reputation
2 v3 L' {9 C( Z0 i# Yset trade-record-current
* j. H% _6 f* Z2 E, F z% |/ Z(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 [" u5 t1 p8 v3 o1 I0 \3 C! k1 i]4 A! ?% J [5 ~) F% U% C
% ]5 A8 N: B* d/ [
. r+ `$ x* o3 k; {7 C9 S) w
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
# Y7 c3 b$ ?0 U8 [4 A$ K$ B" M0 [+ B7 e- M
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
) Y& t9 z7 a3 S' _;;将此次交易的记录加入到customer的trade-record-all中2 s, W7 u+ ?3 N! h! q
end
( H$ ^3 ~$ m: R. L% [6 q3 c7 k& r% w3 h1 \- J
to update-local-reputation
' m b# F" f. t k4 w& m, yset [trade-record-one-len] of myself length [trade-record-one] of myself
$ Z. Z; X9 a' \" s$ |- P" {: t1 f' z& }0 ]2 e
. g E: E$ V6 W8 M& z6 `0 o;;if [trade-record-one-len] of myself > 3
. f" E2 |% F) `' x4 Eupdate-neighbor-total, l2 z4 S( i: o1 [
;;更新邻居节点的数目,在此进行
6 y& p9 F x! q9 b- x9 x( Slet i 37 d' }0 @2 ` y" e
let sum-time 0
8 H, R# }2 ^3 b8 j0 q& Qwhile[i < [trade-record-one-len] of myself]
' r0 H8 B/ d: x H[
$ _( N- u' y+ V: Mset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
- I' ?! p2 ^" pset i
, p4 [; h+ Q+ U! L: o' _( i + 1)5 |% f$ {4 [/ s1 \4 Q1 Z
]
; d/ s7 f) _/ ?. Zlet j 3/ K/ f$ g2 `5 ~
let sum-money 0
8 z; p# u, z; |$ p% @( dwhile[j < [trade-record-one-len] of myself]; }" ^2 e i f6 C& C4 D( t
[
3 t6 y; X# M1 L% d* { e. _ V) Eset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)# Q1 @& T7 r& e/ A4 A" C0 U( ]
set j- Q9 R0 x2 i/ G2 L
( j + 1), L( _9 b) ]! L9 W7 z9 _4 O6 _
] I. V/ n+ W+ S
let k 3
+ n7 Z; H c H4 k* u2 @let power 0' e9 d: u' r* k I" e" R
let local 0+ {" y% d4 L: r% g; u6 W* H
while [k <[trade-record-one-len] of myself]
. M' N; `- R p[
: V j0 k9 z" a O& y7 }% ] 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) $ s% n6 I0 |2 H5 D( f3 q
set k (k + 1)
( q# s0 S' P0 i1 |8 r, m]* _" A) _4 J' B% B) c# h5 H5 N7 Z
set [local-reputation] of myself (local)5 I$ E5 L. R$ r
end- _* r9 v5 M1 n: G9 A, e; y
2 L' d4 g! a ?8 ?' A6 cto update-neighbor-total2 q) c Q1 p* e0 d9 P+ e
( W6 v5 q( r+ s8 ]& f1 I' |0 G; wif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]! [' [* {8 L; p+ \
0 s# B' Q# G8 C- s8 o& @+ h" G, C2 Q
% W* q2 ]. `' V% H3 o& H0 A3 mend
3 m7 [! _/ K5 V+ l6 M: J- {) ^* l! K9 \* `1 \
to update-credibility-ijl / q1 L; O: g6 `1 v) [8 d
+ T4 x8 z) S$ C( R/ E1 b
;;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。2 P. }* J" z. {4 X# t! t8 j- k: B
let l 0
& F' \) [ `- L! b" E: r; Fwhile[ l < people ]4 j# K8 h# i5 p8 o5 Y* o
;;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
& `$ o. z, }$ C; U. t# K[
- H- i" I7 [1 h; `! I7 G; d2 \let trade-record-one-j-l-len length item l ([trade-record-all] of customer)) Z, s/ g* F' X1 O
if (trade-record-one-j-l-len > 3)" f; R l0 V* F: O; E+ p# ^+ }
[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-one7 M2 u/ c. q4 x
let i 3! `& m8 Z( M& i; k8 P8 g
let sum-time 0
! n' f0 T$ d* [$ h$ u3 ]+ _: n h; h Awhile[i < trade-record-one-len]# Q3 X; P: u7 M1 g+ z' a
[
( W0 R3 L# T( `# n1 `; \set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )6 k7 I6 H4 T" A# t' ?# j
set i
# O8 D/ U4 K' H( i + 1)
, j, ~, A9 {. g]. r7 M* k* O" j" G$ F b, a0 ~
let credibility-i-j-l 0
8 a. p/ y8 D s- s, Y/ g- O;;i评价(j对jl的评价)8 z; k a7 @# ~7 P
let j 3
6 j' N# M# |3 ^" ?5 Y( rlet k 47 Y: t R% ]: w( q! N* Q2 @ n
while[j < trade-record-one-len]
# l9 P% \" y, H+ F[
1 W& a7 a \4 A% u$ G7 i H: 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- X. o5 s4 j( N6 n1 f1 @ h
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), m0 m+ m7 _, G! C
set j
& i3 O" m; c; E7 N/ v3 ~2 H( j + 1)
) Q9 r/ v& d+ \, Q n, b1 i7 g]; ^+ k- R0 k9 Y ^
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 ))
+ I N; e. |8 j$ S; L
0 ^( P( B: b' K. k) p% `1 h+ h: y0 }! F0 T. e
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 K: V0 _7 S) B3 S" b# |
;;及时更新i对l的评价质量的评价
0 u9 o. g" \+ }* x) z+ C Bset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 @0 P- w' W" h: }% u2 l+ ]
set l (l + 1)6 _' _& P) ~& ~ i. H h
]8 v+ C3 t* |5 ?! o( b9 N0 p4 R
end) ^6 R% k# Q1 K
3 q1 m; Q3 S& z: a9 i# Xto update-credibility-list
* b/ P* j' e6 _, C4 C; f( q) ylet i 0+ {: }% ^' m1 ?% m9 n, p: d
while[i < people]& |! S' \5 g' P. u% T8 Q+ S
[
, m9 e; E9 y1 h Zlet j 0" L) F, F; ]8 I$ G
let note 0$ V9 Y5 c& ^$ H; c2 A3 ~
let k 0
+ e- m/ T' x- M;;计作出过评价的邻居节点的数目
5 l+ p0 W# y! _7 i owhile[j < people]
- ]- G4 ?( _; M! \[5 B/ h/ O0 s6 v( ^, b. b( ^. P% }& P: M
if (item j( [credibility] of turtle (i + 1)) != -1)
! }/ b( w$ Y; k! L" \. E0 [2 n;;判断是否给本turtle的评价质量做出过评价的节点
! {3 l, k" D, ?[set note (note + item j ([credibility]of turtle (i + 1)))
: D3 L/ l: k' r! E4 y;;*(exp (-(people - 2)))/(people - 2))]
( t$ X" X, \! i% P; {6 ]set k (k + 1) S# _# R, m6 {7 [7 e1 }
]
- w2 S7 c5 L# C' G+ g' P ^set j (j + 1)
; Y4 Q6 B3 j1 v7 b]
* a3 X3 r# W; a' ~% a+ {% Bset note (note *(exp (- (1 / k)))/ k)
) b$ X/ h9 [% P( u) `, j& A7 r2 g, ]set credibility-list (replace-item i credibility-list note)
5 I8 q, ?7 C$ ?( c& f8 t& Nset i (i + 1)
; s3 D& I( @, Q; e# q+ v]
8 i3 }9 Z' B2 Z: Bend! z [/ R2 ?* K, S- a O
& U$ i4 K! ^& f$ Z$ bto update-global-reputation-list) d3 ]8 K2 @; B7 D
let j 0
( Z" B4 G0 q, {while[j < people]1 F. B- b. Z2 |% X a8 C
[
0 _, M! b: _4 t! h; g- Qlet new 03 Z9 |8 x/ a. x; u6 e# V( h+ a; p9 p
;;暂存新的一个全局声誉
1 Y- z# `6 L: H& [1 m4 z/ d. [; V/ V; ylet i 08 W( g6 s' j: S' a+ N9 L$ P
let sum-money 0
( ]9 p0 e) ]7 _8 i# Hlet credibility-money 0# v6 Q& t. ]) f# Y6 l Y
while [i < people]' g# p$ W1 M! N9 X W: ?
[
* G F3 e" ] [0 I# U" B# Pset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))' X9 o2 D: B, Z; d7 \; w
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) o5 \+ j3 ^0 x2 S+ I0 zset i (i + 1)/ }5 g; M1 O) H, h& b3 y# @! t
]8 _- R9 ?1 D/ c: _2 M. H! s- P0 }
let k 0
X/ E9 s1 G; P( l( u% flet new1 04 `/ x/ Y, Z# }# ^# n- {
while [k < people]
5 L0 n: w: j Y# ]/ G% u4 p2 h! Q[& ~2 F6 Y9 t, J0 J6 W1 G9 Y
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)) z' |/ S# n. o$ K7 ?8 R6 [4 }
set k (k + 1)
7 k- ?/ k, e1 v] W, {5 m, o8 `$ h9 k! v
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
' [* ^6 [. a' v4 m' d" H# }0 fset global-reputation-list (replace-item j global-reputation-list new)
) t3 U' T# J9 n, @9 bset j (j + 1)/ G L0 [0 F* L( A
]$ i3 y$ u2 j% b
end: x: f' k; L/ N d9 [# p0 W
7 y5 ~) x0 m5 @: t
5 `4 V) z0 ?# I8 h, Z/ J3 o& f+ l2 i/ y$ N. T4 o9 ? F/ o+ E$ ]/ v
to get-color8 u: `0 @3 l f. N5 }6 F2 p$ a
2 N a+ s* F8 H# A5 sset color blue
" A' f% C5 s# lend
+ f1 R, `4 P7 z' C$ c2 F
1 w8 w; S. V9 h3 O. h4 C* sto poll-class3 o$ j K- z p4 X8 [
end+ ^$ H2 d# A4 v2 M- a
- {3 I& D+ i; |& Cto setup-plot1 I+ k7 ?7 v0 n v9 T2 e
0 `7 k7 O" }; X* G- M& zset-current-plot "Trends-of-Local-reputation"- o' e0 K" E' f& u0 ^% a/ C
* N) @' z( q$ F# k
set-plot-x-range 0 xmax
8 U! ?' O) s a- z; k7 L
! e: D% L" q# s2 Pset-plot-y-range 0.0 ymax$ H! k g' t! r; h8 @$ O
end, Z$ P* O$ d$ [. D
# f: V% V# [/ _. g/ G
to setup-plot27 D+ u) W0 H0 U9 d A0 \. u6 A
" ?6 r! p, l% q$ b7 v& F4 F* wset-current-plot "Trends-of-global-reputation") X9 f( {' e7 P
7 d- e8 y5 C" H6 w! Gset-plot-x-range 0 xmax0 v4 |, X( ]6 l& G) D/ `1 w* M
% T6 F1 U- ^( u+ W$ S$ Q/ nset-plot-y-range 0.0 ymax
$ I' s9 M1 j8 v& k6 Cend
8 B) `3 x# w+ C9 ]( l+ o: U' @6 k2 U
to setup-plot3( a: I1 a0 `. b; N6 P9 O' t* k- M9 A7 z4 P
) X, r' A2 o) ]: t. l+ f6 \set-current-plot "Trends-of-credibility"" r- D6 x5 O0 Q y1 {7 e$ U
$ f; {) J7 @' p/ F3 D! d& C' g$ ^set-plot-x-range 0 xmax
+ ]5 }4 j5 [* b" I8 D& A# @3 L8 w& c+ u0 s K' S
set-plot-y-range 0.0 ymax! k! ~+ K; z [3 q9 U, ], |
end: r* v0 U1 y! ^
4 ^; b" `( j$ j, j8 kto do-plots
7 G$ w: _4 d' ~! n8 V# hset-current-plot "Trends-of-Local-reputation"
" w' \/ K0 V4 Y% k, qset-current-plot-pen "Honest service", O# X; e g* j: m; X' H
end
, z4 W5 j. o6 n+ s% X- q9 }2 P2 Z0 n
+ U; B3 I3 b- [- w[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|