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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+ q r7 ^7 g) ^9 o6 f5 U
globals[
# L( Z2 k1 v0 S3 z. ixmax
7 U! }, U$ }) Q, N* _' Q, H! aymax
" @* p" o% i( a+ Lglobal-reputation-list! l, s- K! S0 Q: z+ k
6 L0 h% B& Z8 X;;每一个turtle的全局声誉都存在此LIST中
# E# c% a) m' I; u$ I) `& P( M: I3 ecredibility-list" U$ L4 q% G+ h8 K# F S, }
;;每一个turtle的评价可信度' {, z9 X) Y1 L1 ]: U
honest-service" w$ G+ O% V* B
unhonest-service n3 j. A. i9 ~
oscillation( w, g! w3 d8 L& J7 H+ x, x
rand-dynamic
8 Z+ I t( K! s; p1 a]
7 i* P5 F; V% I6 L8 q
5 p4 x k7 c) @4 Aturtles-own[
* a7 p, l' ^0 f2 M5 X8 L9 c8 H Utrade-record-all8 z4 A4 T" Q1 M5 o/ Q
;;a list of lists,由trade-record-one组成* ]# R# E s0 j8 ?% z
trade-record-one" j }6 a# t 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+ e* C+ w" O! e# K u% @: {
( M9 @ t' S( \* O
;;[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 A5 c7 o R4 U3 b
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 D" R8 t8 v. V5 `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
3 _, L) I$ i* b( uneighbor-total
% y) R( M [8 j0 J' i+ V;;记录该turtle的邻居节点的数目
. U7 }" I: B& r) @" C! B/ i) Ftrade-time0 G; J9 r: d) C' z a! n
;;当前发生交易的turtle的交易时间
3 f+ n5 o( ]7 L! X$ s+ eappraise-give; |, _/ k0 P+ @& b2 ]
;;当前发生交易时给出的评价
! b+ Y0 o1 h; X1 U- F8 Q6 w+ Zappraise-receive# a& ~1 S# a8 J7 }9 M" a/ @2 z
;;当前发生交易时收到的评价+ S! e% k: _8 V4 l# @# d2 G" D
appraise-time
( r. P& Z9 g7 n+ R; G$ k0 Z;;当前发生交易时的评价时间
# Q1 w4 O; b$ }. Xlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
: R1 {: h9 d' S) ?" Y3 G9 vtrade-times-total
/ r9 ^; k) ? k$ n& t/ {;;与当前turtle的交易总次数
+ w8 E; |4 U4 e( Utrade-money-total
7 x: ?, E, M: A- G7 R' ^;;与当前turtle的交易总金额6 y) w7 r3 s6 n. ~5 j$ a( Y, ?
local-reputation& o3 C! d: P+ Z8 x+ I2 @' y K
global-reputation
! H& h! y# }) O0 \6 Dcredibility, U: K3 i. f$ y( A5 l$ a* a7 l' U
;;评价可信度,每次交易后都需要更新
, d- R2 i2 v8 R. Icredibility-all
( ~4 T8 @3 u% i9 i9 W0 c;;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 f" y- x M5 l8 V
3 G. ~2 {3 p! Z6 O4 @! l# t;;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! O0 r; H- R4 n' [6 q
credibility-one' s; ]* _( F* s) [# \) ?" |+ V
;;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, |4 G* G; w& |/ h2 I
global-proportion' Q/ H4 @5 V1 V% N* ?! Q; l
customer' E7 P- P0 p6 ` A/ d
customer-no
9 S' g! V0 z7 I1 a5 d0 i( i H# Y8 Gtrust-ok* X4 R8 U* Y! ?: b# t k5 p3 O
trade-record-one-len;;trade-record-one的长度
6 c0 l& ~( R, |( R6 o]+ m! U9 Z* w' X* p4 D2 z( u
0 P- h: T% r6 w1 [9 S" e" A
;;setup procedure( f0 e1 }, g2 I1 \
0 J5 {) S: _0 v6 A g2 mto setup O* `0 y$ `+ M; W" a ]
3 U# ^0 B8 f# @1 I F1 J
ca: h3 ~4 T9 j' z
8 U/ a' P9 Z+ `2 ^$ V7 D3 z; ?
initialize-settings
; E* g% f5 o8 t# b/ G7 m4 G+ Q/ g
# D+ z3 w9 ?0 o( ^, c4 jcrt people [setup-turtles]; ] ^ J& J M3 H: x
7 K7 t3 [4 e+ N8 Breset-timer
- P' _8 S& ]3 w" M* N6 c! k0 X' D/ d3 f3 }2 K0 Y
poll-class- M- s7 o& g M
( f% |; W& i m' h5 q7 F \0 ^setup-plots3 y: R# R+ C, ?
, c1 `. y& ]8 Y) t! V% P+ s( Vdo-plots
( `0 x- Y' k+ V1 ~( p# R: w V( N. m/ bend! | g1 g$ L$ F9 n3 j( C2 C
2 q; F) h9 T* o3 q
to initialize-settings2 y8 T4 T4 u4 f ?! j8 x! M
" s) A6 j( T& ]8 m2 oset global-reputation-list []* h; p/ z; h$ Q1 h, q3 a2 y; A# o( D
7 K K9 k7 H5 F Mset credibility-list n-values people [0.5]
. p0 Q: f( }# G. B: U5 j# {& S" E/ Z+ Z3 h9 u8 d0 T( @
set honest-service 0
+ q, U0 c8 n% a, P& a* N, Y; L# x8 n! t; `$ L
set unhonest-service 0: U5 l S# n! L) C7 P
' c3 F6 e# |: d/ s! }: I0 c/ o$ z) a+ oset oscillation 0
. x: b% H& G- ]+ I+ Y& c; i, w, ]4 e7 {3 [& A; Q) }
set rand-dynamic 0. V* l' t$ t" {3 R x
end( a/ Q( P1 T- a
7 v$ G( p2 S" W! Jto setup-turtles : n3 X. D4 N5 S8 K
set shape "person"7 l8 S. d# N6 Q+ r, j+ l
setxy random-xcor random-ycor2 O3 A, g( y l
set trade-record-one []
' C; f# v7 j( e9 _- u* F1 h
2 [2 V1 I% l" b! L4 Xset trade-record-all n-values people [(list (? + 1) 0 0)]
( g0 v5 D; ^, ?% C5 j- A/ B" ~9 a0 x7 t1 L
set trade-record-current []
3 Y! ]; [2 l7 B6 n* pset credibility-receive []
8 n5 Z+ u5 U- W6 r, Iset local-reputation 0.56 W7 U. p, \% ~6 l% J
set neighbor-total 07 f. ^7 m' Q2 X. c
set trade-times-total 0. J$ X# d! v, [: x$ F+ ^
set trade-money-total 0 D2 u( G, U7 Z
set customer nobody+ X7 I5 p. o: R
set credibility-all n-values people [creat-credibility]
, P/ m: @& U: X/ Gset credibility n-values people [-1]
6 K) c$ \ G$ E$ W2 M, qget-color$ h5 o6 q6 G, G7 B$ p
/ [9 n' \6 r( bend
1 s' q+ [3 [0 [; r+ X9 x% L _$ a a
2 P1 V/ @0 U, p ~to-report creat-credibility6 e& n2 k8 W- h0 A8 X
report n-values people [0.5]- H! Z6 h" h7 I7 p4 |
end
8 p# A# D& [; F2 D
4 R- O. Q. n: Y. bto setup-plots
6 s1 c0 ^* C5 }. K" ~1 m
9 u8 h. X% ?( c5 Zset xmax 30. B, [ L/ r5 Y8 C J
3 F% u+ p! q0 D; l% U
set ymax 1.0
2 Q9 K2 D, J9 Z- z9 c3 G' h/ T h# f- b Y
clear-all-plots# t7 Q+ ^( h0 b- d
# B7 e5 W+ \: w2 v" u2 E! ksetup-plot1
& L( M5 A3 F4 T9 k" W. E. g2 N+ W; W
& }2 V8 F, x/ ?, ?- B5 Vsetup-plot2
+ R- X6 n S; Y8 z( ]" C) N2 u/ ^; D& w3 u' P
setup-plot3
z- l- c: N Uend( Q5 Q! K+ ~' k- I F! D. W8 g) x8 G
3 P' P! c8 d$ O: K) i
;;run time procedures' j. v, r0 ?* k8 j7 S o3 K9 u1 E
3 @1 |& D) ?1 p' p+ [& n8 @
to go
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1 C2 a. E _' Z* ]- N, dask turtles [do-business]- y' D% V/ l+ e
end q: c' J+ w' p, q8 b0 \- O: P7 O
1 f" y: o8 S) K; T" [/ \* R Qto do-business
5 J% ^+ {0 G* ~. N% G: [6 ~/ M4 B
* `9 u q" ^5 ^( I
5 X& B. q: z; P# M- H2 l8 Krt random 360
' |! I1 L& n( r) K3 Q6 w& y. r5 b" W& E! g/ }- q
fd 1
) |8 m( _! { ]) g5 H$ l* o
" G) G- q1 A$ Oifelse(other turtles-here != nobody)[
: P( ?! A% t" C% D* M2 }) H. S' \7 s6 n' d" d! {) m2 s2 u
set customer one-of other turtles-here
" I( }! [9 u" i9 e, p7 I' c# t/ b/ _# |3 v
;; set [customer] of customer myself
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1 B# B* m4 P j9 O$ n! a* U* bset [trade-record-one] of self item (([who] of customer) - 1): _, R( K/ j6 [1 E
[trade-record-all]of self
6 O# [0 m K) M4 u3 O;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
' s' m! l4 G! f0 ]0 a$ v) p" J; z B; h3 Q* q2 M. |
set [trade-record-one] of customer item (([who] of self) - 1)
% x3 Y5 b# o' w' R[trade-record-all]of customer
( ^; T3 z d* F- {5 w! {
2 w6 B; e$ _8 R) m& u. lset [trade-record-one-len] of self length [trade-record-one] of self
F- ^3 y9 O+ b. G9 `* z; K
' V& h, a- h; C# ~9 a0 `$ A0 {set trade-record-current( list (timer) (random money-upper-limit))
5 l" e: S$ s- I
. l) [/ A* E1 u* ^+ f& L! k, Bask self [do-trust]( A1 `' p7 Z4 U- A W9 f) S1 t
;;先求i对j的信任度/ a0 o3 d4 B5 f) \0 ]9 X
6 ]5 ~, g7 H8 h$ |, R
if ([trust-ok] of self)) S' i) D# r( y7 @) P
;;根据i对j的信任度来决定是否与j进行交易[" [# Z" L3 e* { k6 B& s% m9 U# ?
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
3 ^$ b: I1 R% E$ o! t9 R* c7 B1 E9 D q& }1 P* [5 b) ]! W1 R
[0 e; C* O# g+ F, y
3 `6 C3 @; x3 F% O; P8 D/ D; ^" q2 U
do-trade
7 n' i% f8 O5 |1 i4 ]3 m0 P, g% m: d2 A
update-credibility-ijl
, C. B/ r5 |+ Y+ s4 q) H X& v, G# K+ R
update-credibility-list& A [% ?1 j- f) F! G( b6 M& ~: Q
% C" ~8 q6 K' m: Z5 L. E
& [7 R& r$ @6 T. ]
update-global-reputation-list3 f# }5 f% ~7 r1 N% I
K: y) y2 E' R8 f5 z: a
poll-class
& V3 I; K1 ~7 M! ]( P& S
- b& [, u6 Q$ C Jget-color
# Q- f) R4 Y% ` K1 f4 Y
+ ^7 X1 Z: [% P$ R! E, v]]! \$ n* R+ r1 c
3 p! V1 a+ Z- F. J7 U6 C. N; ?;;如果所得的信任度满足条件,则进行交易
: s* j+ C, C7 z
1 a+ h# r7 r6 F! D8 q[0 Y8 n/ ~- _% f/ n% o1 F' W
7 D3 i$ R6 Q6 B) D3 X3 u
rt random 360
9 `) B) A( X# H/ A- c* O: F6 ^$ F3 d& h: d3 i" {
fd 1
* R0 @! q& C9 {
* f$ |$ B% S, `$ h" f% [: }2 m]7 s3 N# p. C7 i# p$ ~( I
$ |5 \' |, G6 u7 c! T
end2 g4 Q9 f, q) t* o
# S' H% R5 k( @6 Eto do-trust " \2 @% A3 W$ i, X! I
set trust-ok False
/ M2 r4 O6 g! ^ k+ I# v+ q6 q+ o
% f+ Q, |9 @. V% H* Q
let max-trade-times 0" ?4 k0 j, ?& }: ?
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
" z6 n7 C. F8 r+ ?$ F; T" \let max-trade-money 0# z3 P% s# A' b' u- D
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 ~3 h% A& ?- J! m3 ?; z
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
6 W4 f u$ `6 _+ S" X& Y4 z3 t, }: S$ a# Y
# l/ {' Q6 O" `1 }
get-global-proportion
+ r$ J9 ]( D+ E9 Q& z; @% Dlet trust-value
# u$ e+ @% P! T$ ?/ A( `, [$ flocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)! s0 ^0 e4 E. h5 e- j; P
if(trust-value > trade-trust-value)2 t$ v+ @3 o+ w
[set trust-ok true]# o2 a# ^1 a/ @" k7 O$ J9 O
end
1 A) g% n0 R8 Z4 j2 I
* k0 L/ A9 _, r1 M6 Z/ Y! h+ Fto get-global-proportion
7 R n; A$ d) m6 t6 iifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 u! d1 `: E4 l; x2 ?[set global-proportion 0]
+ A, ]3 H8 J" {0 I# E" l[let i 0
9 e) Y7 ~1 t. Y3 olet sum-money 0
& t& ]4 `" T2 owhile[ i < people]
2 \( w/ J c$ a+ e0 I5 s9 S[& C8 W) v+ D5 s
if( length (item i
5 e$ ~* [% V9 M/ ^9 ]! C# a[trade-record-all] of customer) > 3 )
' n2 e3 I* O3 i7 M4 Q[
- S# g2 r" s/ T1 U! H4 ?4 ]7 e& _set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
% \; W0 L; z9 B6 Y3 L" M# D] C6 C( s' t' U8 u% I( f. ^
]
4 A2 F+ K ~; Q" q' b" qlet j 08 M8 A, P4 a& y2 y) J
let note 0
5 W% |6 V* m$ Qwhile[ j < people]- z) A; x- O+ _+ W
[* k8 M, J) \5 p, r& i, ]
if( length (item i; r3 b) k2 e C4 U
[trade-record-all] of customer) > 3 )4 N, i3 X j: j3 h! P+ O/ a3 j
[
( q9 z: _6 J4 D; H6 Cifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
2 ]! t; f d! X$ o8 c4 S[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 w" z" {- I9 {3 r7 k[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
8 V# j$ h8 Z: c/ u]$ h# u5 `0 }9 w; W
]( @7 A% x+ e# [: ^/ a
set global-proportion note" x e( s) S, s2 G+ s& M. W- |; O
]
# t/ `4 O1 X: |3 iend
4 t& U/ a3 _ R7 U# V
6 J) j, J% E3 mto do-trade
5 j# v- C9 O( s T;;这个过程实际上是给双方作出评价的过程
+ G, f; e2 Y X6 Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价2 g% r& o( V' P9 C
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( d: u+ r; }- c& i! l3 z
set trade-record-current lput(timer) trade-record-current/ R8 @6 l0 E8 Q
;;评价时间- U6 e2 H/ ~% k( \. B# T- H4 W' E
ask myself [
3 |5 Q) l2 ]5 aupdate-local-reputation
6 ~1 {0 p) Q9 A) Aset trade-record-current lput([local-reputation] of myself) trade-record-current# C1 C) b1 @8 n6 t
]
1 e: ?3 t0 W) ?6 ]set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself& L' X! s( g& L. W+ {
;;将此次交易的记录加入到trade-record-one中
4 a- \: k' D8 Z/ j: W7 g( vset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)4 {" J& W: J, a* o9 c
let note (item 2 trade-record-current )
& R3 N) n) @" {2 w7 T0 g# ?set trade-record-current& {9 w$ B. Z5 g1 S/ Y; L" e
(replace-item 2 trade-record-current (item 3 trade-record-current))
" ^8 W+ F3 T% F: S" j& uset trade-record-current
' h( E$ {3 A. l: R7 U; t* m(replace-item 3 trade-record-current note)
) t! |1 g/ [1 F8 S5 i4 B& E2 |" K/ x% _+ c! u
, F, B4 G" x5 }. q% U" q0 A: H- v8 d, Rask customer [! y0 z; n, M2 z' {
update-local-reputation" O Z1 i- L/ K
set trade-record-current: J% G3 t3 n. F4 p; P3 R
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
& N9 r6 H) w+ `: _5 _]
$ W9 |2 Y# o8 p0 i$ E+ u! }+ C* p5 t% G7 ], _# D" U
: n, D& Q# C4 d! ]# f
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer) Z0 C7 s. n1 O5 I: t
2 w2 Z$ B: n; H7 k" y
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 [+ |& _+ u) g3 g3 {! s
;;将此次交易的记录加入到customer的trade-record-all中3 N5 c+ Z F; @, W- O+ F
end
- V) Z) E: O. _* g7 ?
8 e X* e+ Z/ f" D( ^# lto update-local-reputation
$ z( E" k/ n+ x0 q$ @# [* N, @. oset [trade-record-one-len] of myself length [trade-record-one] of myself
0 K- m5 n) f) g8 d5 ^: G( q! n( y/ s1 Q2 o
( A9 b) @7 Z3 g# B1 w, c/ I;;if [trade-record-one-len] of myself > 3 0 z6 {" d0 k+ t3 ?% ?% G. i
update-neighbor-total5 O$ F! h9 W# M3 l3 L" v
;;更新邻居节点的数目,在此进行
1 i5 g& W+ E7 e4 m8 s( [let i 3
+ e" K! j* G% j: Nlet sum-time 0
* C c: T/ ~) O g% y7 G- qwhile[i < [trade-record-one-len] of myself]0 C7 e; D9 S8 i9 s- I
[
9 t. n0 q+ O+ nset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
t. p) d1 O' |set i( v7 U+ P5 u! w {( u: E
( i + 1)
& c; H: U6 I: {]
' e* t4 k6 }* G1 N. Elet j 3
$ i" |" W! L1 | \* K! ^let sum-money 0' i7 p0 e5 b- Q, d
while[j < [trade-record-one-len] of myself]
, {% t4 H0 |+ F) N$ U/ n0 R[5 d9 T7 o1 m* J, R. 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)! I( I8 E7 e, A" R% i
set j
8 n# r+ C, z7 |8 Z0 \" T( j + 1). q. F# d( O3 j1 R1 B
]* L0 R4 C( J- Y% R3 R9 V
let k 3* i; j' i) _0 _2 K* `. G
let power 0; m7 D" [" x0 {
let local 09 Y7 E0 {: C! `& b3 R- }
while [k <[trade-record-one-len] of myself]
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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)
3 U0 a; g: R- p: F# v. \# }set k (k + 1)! K' f: G0 D+ p* r! h5 j' {
]
6 X# {6 o% v, L* B" E' y% @5 yset [local-reputation] of myself (local)$ D2 z& d3 d$ a& U2 g) u
end
: N: w& b: T0 F& |& y2 ?
& t' o f8 }! v7 D5 q+ v$ l" f& l7 M7 @to update-neighbor-total
# M# ^' q9 p& v3 ~5 A! p% I% I' {3 C) t3 a5 M G5 c
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" c1 ~; H- Q) y7 H
1 S+ t& t" C3 M/ Q! |3 m: L
! g2 c9 A( p& tend9 V& K2 g$ I, i' Y; v
( Y, d0 e- b/ l4 T1 O7 d) Vto update-credibility-ijl
% G4 G# C/ @( q; A' E, {7 ?3 P- {8 Z# i0 I- y) ?" l
;;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。
: [: Q, y+ \9 d) M. hlet l 0
. k0 j7 w7 j/ o J' owhile[ l < people ]
4 q. I+ v& {2 S# N; t& K4 C;;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- x& |, S( c( o) ^3 \+ ]7 U3 a
[8 O2 V0 G2 Q3 U% n
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)8 ]5 x/ H9 n. ^# T. @ o' t/ r
if (trade-record-one-j-l-len > 3)0 c! V8 ^, o I# Y# P4 l. H7 j
[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* t- o7 a' @$ M( W/ w% z: W( \
let i 3# h; K! U/ v V! v* J- k1 G4 ^
let sum-time 0
6 a. k9 z6 N9 E3 _9 G* Hwhile[i < trade-record-one-len]6 m9 o# s( D! T9 n: Z- Z
[6 c( g1 w- h( ?9 b0 j7 W/ s; c
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
7 E& k+ l- t+ T3 E2 o7 d; P) pset i' H' q* ^# a. G
( i + 1)7 M$ B$ J8 a; n" A0 x! L$ B
]6 V( K* k! D o9 p9 m' k
let credibility-i-j-l 0
9 s n. i$ `" ]; K0 d; _7 L;;i评价(j对jl的评价)
- _7 ^/ C$ N: n |" K! N* }let j 3
. @+ I) L9 D8 K" S, v" @let k 4
- }1 p! W6 M8 S) H+ n) e' l4 hwhile[j < trade-record-one-len]8 k5 s: C0 Y+ F( N! U/ d
[
6 Q$ D7 ?9 ^- a/ \9 h- pwhile [((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
0 v$ q i3 K, d8 A9 B9 m+ T3 sset 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)$ O$ u6 c- h; O$ Q" a5 A7 K
set j& p. j$ k9 } `8 ~
( j + 1)
- ]0 Y E& [3 [! j]- y6 n0 q$ k8 t0 d; R9 M; `+ a5 t& z
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 ))" R# N1 ~/ [6 J! j C5 j
" Q) `! p& ]7 c* I1 f6 k- ~ B- R
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
% x# ^5 `0 w6 h! ^$ c8 |;;及时更新i对l的评价质量的评价
, @( i# U5 W% e6 zset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]: M/ ]: G7 l0 e. _* o3 H4 k
set l (l + 1)$ m5 g/ a E- ^, L8 x- W
]
2 B" D" g5 O: T7 b1 y6 dend9 Z& n& \( v% b! ]" \! h3 A6 F; P
5 q9 K& j8 R) `# F" Q, Vto update-credibility-list" Y ^) k* P1 ]9 g# P4 ]! b
let i 0
% u" r# n: _! x/ Y6 J9 ~while[i < people] T/ k9 O5 X8 G' ` x0 s( D
[
/ Z! F& N C: k. F* X$ s& n! h- Clet j 0
- a+ I' F5 e7 X/ glet note 0- R8 C. X4 Z7 f7 d4 o
let k 0
# Z, O7 P) S5 h2 V) Z4 W- u;;计作出过评价的邻居节点的数目2 G% k% m' r1 i$ p- C7 t) O" b2 X
while[j < people]- I$ h1 W5 w& Q( D9 C3 P
[
& j" x2 X7 F+ X! A1 ]if (item j( [credibility] of turtle (i + 1)) != -1)
5 f- N0 t1 H# R& i; W0 i4 a;;判断是否给本turtle的评价质量做出过评价的节点) P9 h0 y7 d: u( T
[set note (note + item j ([credibility]of turtle (i + 1)))
5 {0 ^8 h% M3 y0 S;;*(exp (-(people - 2)))/(people - 2))]. y; g }9 c/ A0 ^% H4 _
set k (k + 1)- }* J( _, q5 y7 u, \5 i* @. d
]" v1 K9 u! K1 m" n, I3 f2 }, k. i) h
set j (j + 1)
) V* s3 W# M! ~& O: r! S]
0 m {- ?2 g; G, R) E- ?set note (note *(exp (- (1 / k)))/ k)
5 H* M$ L T3 L8 I) c2 eset credibility-list (replace-item i credibility-list note)
" h. ]$ Z" Q7 Uset i (i + 1)+ ~1 L) m$ {3 a* E
] Z; E, @) C9 k$ X5 ^
end3 Z2 t& J0 k' c$ u
6 [" Z* u: J) x1 E+ pto update-global-reputation-list, {2 T( Y6 p& i9 D
let j 0) n" e( A% C% y+ \' A
while[j < people]
# O& V4 U( _+ Y/ ][
* ]5 P* m, t; g% }5 flet new 0% V6 Z1 Z2 Z, d: M4 P: T, ]
;;暂存新的一个全局声誉/ d, o1 @; \7 _) h1 m8 y
let i 0& L& b$ e4 L3 [3 K6 G0 o
let sum-money 0& l6 I2 m- I; @: M" a- T+ [# [
let credibility-money 0( }+ G* l/ \! X0 Y, {) B0 S
while [i < people]6 O- X3 F! e* l7 v
[
, K; L$ _# W1 Kset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
% h3 T8 G# J/ p1 V* A# ]- n3 cset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))4 N$ T4 F) u$ ^ T
set i (i + 1)
; r8 Z; K8 Z D( K" T0 A]( y9 Y _: }& z8 U7 z& _* ]
let k 0( ]( ?- ]3 R, D7 y! d9 H
let new1 06 r7 n: l1 D8 t, ]
while [k < people]
+ X4 b$ L( J" G4 Z[9 X) F2 [0 |( b, a4 i$ L. P& l3 {
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)( i; @9 L2 ^4 F; n: C
set k (k + 1)" [4 }7 _$ P3 e0 b$ s+ {$ T
]% f3 G) X4 e. _/ T+ }8 f
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! f2 z1 S8 a8 n& k7 ?
set global-reputation-list (replace-item j global-reputation-list new); u( l) C, ?3 o( S
set j (j + 1)
9 z8 v2 ]5 o6 N2 Z7 x9 ?/ y) i]
( q& y6 N' y# @4 d: M/ [! eend
8 |1 R" Z/ I' ]6 A7 d' n6 D/ P! u& f
- R$ J* M' ~' D1 a/ o) k& O% d" ?3 i
to get-color
* Y% {# U: O n* a" s/ ~* C4 }: x! p+ H
set color blue
" {7 d% L$ a8 x4 Z9 iend
7 R+ N( k3 t6 Z, _: ]6 z0 O% n2 q& p9 ^' [2 ?6 |9 \0 `( l8 i
to poll-class t- W3 b. R* j- Q* Q
end9 z) r* j$ N1 i+ u: \; |. w4 g
) N. v7 Z' C% D) w+ j2 q$ jto setup-plot1
0 K/ O7 `. u1 v4 i3 ]$ |! s- U j) @" o* P+ A2 T7 w! x4 [' B
set-current-plot "Trends-of-Local-reputation"
5 D# ^# t) z* _! h! B: x! x |% V& ^# U
set-plot-x-range 0 xmax
) g6 m f% U' l" T* D4 {% m
! M* v* C$ S. v7 qset-plot-y-range 0.0 ymax% s. n# @. N3 ~7 d/ N G9 f6 d
end$ ^6 ]. `/ w! u9 ]5 I( A
( g% M1 g4 j! t4 m& Z' Mto setup-plot2" ]* D% L) P* `1 T- O
% {: U+ z `" r7 x: v! `, J( J1 k2 pset-current-plot "Trends-of-global-reputation"
: R! I( d! F0 g( H& _1 U, j
7 _$ R* P8 P. d1 ?( ~set-plot-x-range 0 xmax( b9 J7 x. u" d" ?5 q9 B
! |% t+ R6 r4 c- k$ Z! M+ X
set-plot-y-range 0.0 ymax
! [) h: J/ u k2 Z/ d9 l6 g9 U4 pend6 F/ b3 V6 w* b3 @& n4 k( d
: @3 ? P& q! w4 I$ U0 e8 p; Y5 dto setup-plot3! S& b0 |" B0 h3 W
5 t/ h: H# [* z
set-current-plot "Trends-of-credibility"; B: Q6 F2 A- m
- {8 K+ a: B- d, Y
set-plot-x-range 0 xmax3 _6 s8 H& L2 G8 G, N
. {& Y' n; Y8 f9 w9 Y( Iset-plot-y-range 0.0 ymax
2 q3 K; S$ V9 W, s8 Pend+ ]( D( @, a( D( f0 F; ~
7 n5 Z1 r4 G b
to do-plots. v& Q0 I c& y
set-current-plot "Trends-of-Local-reputation"" j) z! J- n; z1 l+ t, C/ w
set-current-plot-pen "Honest service"( t0 K& d4 p1 p& D' [5 R* E2 d3 ` m
end) n) ?7 W& i9 N
# o% T1 u9 _5 _3 X3 j9 U[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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