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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
# t! \: f# H( s0 p% c/ _0 lglobals[
|' P, ]5 V8 K$ P" W2 ^4 Lxmax3 ^# { P4 k/ ` @' z; X2 F/ D- s5 V' _
ymax
7 I! v) y0 i6 c; ~+ z% O1 L4 Jglobal-reputation-list/ }8 ]' ~/ Z* a' F! _* V8 N; c
$ i. e! I) ~1 ^' c7 S
;;每一个turtle的全局声誉都存在此LIST中
5 D; z# Z) ?( t0 k( F$ gcredibility-list* b5 ~% k2 m4 V6 Z2 O6 Q2 \
;;每一个turtle的评价可信度
$ {: J! z& Z" Mhonest-service! @- v: h8 A* ^% s4 U5 s( k
unhonest-service; x0 g3 Q) c7 M ?3 Q0 k# c5 R
oscillation9 ~5 ~- C f8 ~8 P6 B; [! C4 `) G5 ?
rand-dynamic
6 y6 I4 I5 _; O9 Y6 ^]
: b1 {5 g' J" O' x( A) K6 c
! _, c- r% y) }2 e5 l, dturtles-own[
: W7 c, O% X0 L1 a: atrade-record-all5 O0 Q9 ^+ O! l5 v' j) X! [0 z8 F: O
;;a list of lists,由trade-record-one组成( @# P% [) N" T
trade-record-one7 Y8 x7 x6 [' C+ I" F+ x
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
8 E; H4 |0 Z4 l: S; R1 O9 [
4 L- d' O1 ~. M( F( t;;[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]]
2 g/ v9 L- K- E, ztrade-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 O k/ |$ k2 u
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/ f( K7 g4 u! z7 d
neighbor-total4 ?2 l) g! [! z& [# A) ^5 b
;;记录该turtle的邻居节点的数目
1 G' v8 Q* C2 Htrade-time
4 T# r% [1 _- x* ^$ r- i;;当前发生交易的turtle的交易时间 |: R! v6 I9 N1 ~
appraise-give
, t% c' E% y/ y;;当前发生交易时给出的评价7 I" k: o1 t' w4 ~" c2 f. e
appraise-receive
# f L3 H0 H5 W e% C6 m5 U! m;;当前发生交易时收到的评价% X! ~) t) B' }: Y7 q- y
appraise-time
; \3 O; D$ W1 F;;当前发生交易时的评价时间
0 a1 q: F0 l: I8 Y) F; Z6 Elocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
) N# Y. t3 C! ^+ btrade-times-total. n6 ~1 n) e; _# L( l
;;与当前turtle的交易总次数
6 O1 e% d; B( v" K/ P3 {- @. A5 Wtrade-money-total
3 `) Y' J v+ a8 R3 q;;与当前turtle的交易总金额
- S! Q2 E, t9 w6 D9 i# d3 k2 zlocal-reputation) i& r3 x: b. N* v, G. Z
global-reputation* C5 ?/ z: z5 y
credibility
9 Z% o; n6 q% L;;评价可信度,每次交易后都需要更新
# u/ ~2 }& v* r/ |3 q7 m; Ocredibility-all5 |+ E) Q ^) S3 d6 y
;;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
" [. c' V# F. S
4 ~( p0 n& Y$ `4 q* h: s;;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
2 P' m: ]+ `$ U' v. o# Tcredibility-one3 K# H1 L6 z y$ l( S0 [
;;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
0 j! {* X4 p: r- b( Oglobal-proportion- r1 [2 g( R7 {; A
customer
! k$ u9 d& D9 d5 y; j2 }customer-no
( A; _( |8 b# X/ btrust-ok2 E6 A: Y5 T, o% g$ v) ^( H( u( N
trade-record-one-len;;trade-record-one的长度
% V. A' \8 D' E$ g2 j6 v]
' m# y6 ~: j7 y0 h
( D, u/ ]4 w3 A7 S6 {; z$ H;;setup procedure" t7 h5 @1 u8 W! v
* ^" ]. i# @4 \$ _; M1 ^1 z
to setup
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1 [& ^* o; w: E6 ]) R1 l$ R: @ca
8 y3 `1 H6 x! e' i9 ]3 }4 o0 _/ }6 d2 j
initialize-settings
+ ?* }. L& s9 [4 ~1 t
; v5 P4 S1 A8 z6 B, p6 ]crt people [setup-turtles]4 W4 M5 C' B3 R% h
2 z1 r2 P7 Y8 C q8 R* o& W
reset-timer
$ x& C g/ t2 L/ q% e l( U
0 y; w5 G5 O" V o! G0 z3 Npoll-class+ V$ T& g' {4 M8 t, N2 ?5 K
. y/ [2 \! s3 a! b! wsetup-plots
, V7 [4 B8 x) L% U) k
5 w& u7 |9 z( L7 i( B. R& ydo-plots
9 _& h( t: d- Z7 pend
& o. J5 `# Y) G! U Q( D" Y9 M4 j9 m3 x1 F- V p2 x* | f/ G
to initialize-settings3 |5 U/ w& V5 G, X$ A( Z6 ^( M
5 K# U C& c) x: K6 m) p) @2 v
set global-reputation-list []7 c: E) q. ]: B% Q: X1 L' t3 [- \
# T/ [0 N+ [7 o' |" P0 ^ G
set credibility-list n-values people [0.5]& K- \. Z6 p* p* u
* r6 Z; u2 M) z. V* u' r5 Cset honest-service 0
! I9 Z3 p1 F9 b0 U0 W+ y2 T( E4 F; f3 v' ]1 }
set unhonest-service 0* B3 ]: ~9 w% h
, a) `3 O* h4 p }/ ?! }- vset oscillation 0) e9 y- B0 f* Y. y; h5 }/ _& f
8 D% l4 s+ y: D1 e- ~3 ~/ Zset rand-dynamic 0 E# i+ n8 o8 y+ ?7 j
end
# U# `# z$ r$ }: T# x9 g, F" Q2 f
to setup-turtles 0 l) J2 f! ^- D. Y: j( L" ~
set shape "person": C! C2 J0 A* t0 h; d. K0 C
setxy random-xcor random-ycor% U8 W% P' F n4 z
set trade-record-one []
3 J5 ?3 w& A3 ]7 r. X( ]' }1 ?
9 \9 e6 f! ]/ U0 z, _set trade-record-all n-values people [(list (? + 1) 0 0)] * k- ^: N( H( r7 a+ m
3 N" \, W1 S6 H7 M' ^ Iset trade-record-current []) C9 q7 I; E) f6 c& W0 K
set credibility-receive []
/ X3 F9 ] u) }; g" ?set local-reputation 0.5
: k9 Y- c& @2 aset neighbor-total 0
{: }# v. I9 Y6 Eset trade-times-total 0% e' i* q" ?; d
set trade-money-total 07 \, ^' L+ T5 d9 r. S/ k; C
set customer nobody8 ^/ Z1 s: X4 Z! I5 ]; }
set credibility-all n-values people [creat-credibility]& V. t1 }( M. U5 h' g1 Y% \
set credibility n-values people [-1]
1 L$ w; C5 K& k7 ^get-color
% {) T$ ~8 I& U: i: k4 [4 M9 ~( Z7 A. Z: b7 G
end2 q2 K) f; Y6 H) q& p/ c: M
& J: K+ O4 p5 Y8 f- g+ N' [. W
to-report creat-credibility
- y) n% S* Z) |, {' \! f0 Rreport n-values people [0.5]% v& f. @. ]" W1 Q
end& _2 X2 u0 w$ G! A# n( [
* p( w {+ v E8 Z$ {6 Gto setup-plots
" Y0 ~) [& p. m$ J7 N. _- D6 s+ V! y# q7 ^
set xmax 30+ o. W3 _1 Y( r: I% Y7 n4 u
" x/ U0 S0 y# e* i5 U/ U" ~( U& j2 N, bset ymax 1.0' U* n7 z% |3 h- K% |# n- T0 ]
( n+ B3 {' t' W: u/ L' ^- n! ^
clear-all-plots8 t5 P- d, U0 n8 r
7 Q" C2 v' l3 M( ]5 bsetup-plot1
5 x# P) x4 _4 u; o# Z* |1 j; L) {
setup-plot2
1 ]1 v2 H6 D7 n# l5 f
$ a. ]. R* @+ @3 V) _3 g; usetup-plot3
. J2 c6 q2 A, ]9 Q: wend
. C+ E, N+ X! l: s& J
5 r* \, I' b/ R. [;;run time procedures
6 w" R- @$ o& n j7 ?( b
2 |$ b! D7 X" n% |to go# {( r7 r, p( B7 G( H/ }
2 `# V# S4 b# u) k& e8 I% Task turtles [do-business]: g, b4 d) I' h( h& y
end; R2 c- Z& P$ u2 M5 [
2 T* t. s8 ~" ]8 M8 j
to do-business ) c) Y. y; L0 p& j
& o) N$ y: e4 E; D6 X3 s/ b& ]/ ~$ X- O$ |
rt random 360/ H. _' P9 |; F% R R
( t6 h: E' H" Y) G
fd 1
! m- l+ Z3 C/ }2 l: F/ Z% j
8 h3 e) @+ S& ]! f$ Qifelse(other turtles-here != nobody)[
8 B. d6 U7 l' c: K& ]- }
. v* Z0 `' V2 J/ S8 n& b; k8 Oset customer one-of other turtles-here9 h7 x) F1 u4 A; Z
% n' i0 I" u5 s. U$ Q! F;; set [customer] of customer myself
+ R4 U9 O% y* i$ ^
: W0 h9 U" o' Gset [trade-record-one] of self item (([who] of customer) - 1)
0 m2 U0 S7 @" H4 p1 |( u1 B5 _[trade-record-all]of self
, K& x7 K6 ?7 _) v;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
" |9 j5 i# w j' d% W8 M9 S# {& {; p) J) s* H( y* _ f
set [trade-record-one] of customer item (([who] of self) - 1)+ K4 r# c6 e" s j! }- P' ?& u% O. s
[trade-record-all]of customer6 \" l7 d' o7 C! {( x8 v. A
3 g/ v% b/ j# ~
set [trade-record-one-len] of self length [trade-record-one] of self
7 o+ t! w% ~" ?7 h y2 f+ h U# G. R% `* o9 n$ f6 R. \
set trade-record-current( list (timer) (random money-upper-limit))
& v7 ^/ x$ _2 I6 T0 w0 [6 v$ Z
; c7 @9 u u# U. V5 l3 bask self [do-trust]
- U+ m0 j1 ?" K+ b' b;;先求i对j的信任度$ P6 K) h* O$ N3 s1 f- C
& b3 F: }) R1 Rif ([trust-ok] of self)+ i$ L/ W1 E: |6 |
;;根据i对j的信任度来决定是否与j进行交易[9 f% C/ P* D7 Y4 E
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
* @% X$ x2 m# E( \. h' H7 Z5 P7 O. p
6 O! D2 h k. N* u/ c8 v" N[/ @5 a) s5 e6 v7 d2 ]9 W' g
" r1 ?; D' }4 l1 m1 J4 h. I, udo-trade4 P `5 Z8 T5 W1 s( ~
' }$ D" m( j! B' ?* e: M5 S" F) ~update-credibility-ijl' j) c% o( a5 r* G
5 _- q" \+ ~) K) A( D& Q: s
update-credibility-list( `8 {8 I6 Z& H* h9 ]/ L' q: R
9 z5 d6 A( `+ [" R8 g. _
' j5 o& O' y+ G1 W! p- ~' X* `& ~update-global-reputation-list
' I' G& A) G, `8 e! {' Q6 I, W$ T" ]& Y3 P$ A# J. M
poll-class+ b& S7 @) m+ x# U
/ W6 a0 m! @" s5 ^: R/ t6 U
get-color
" ?4 o" K5 D8 B* A, R' s2 H. F, _# W' K' g# i( e+ t
]]0 y# J' E* e. C7 Q! o7 _: T Q7 W
0 G2 A* }" K' N) v' ?$ m; a* ^;;如果所得的信任度满足条件,则进行交易' D- T/ T3 w6 X' O+ ]6 T% e
- W# D( Y5 {9 T
[8 _) J! j1 ^" O! `
8 `/ X B8 I8 j9 q7 E, y' l
rt random 360
# C$ ] O7 m" i' q; l2 }" V, [
& S/ j. v8 m# c9 X5 Xfd 1
4 d; M( D+ B( y# _- z5 o& p( }- ^: _: D
]
7 t7 ~9 g. R1 \/ x! z& J, g, {) I: l+ x: p) m+ @
end
7 W% U, ?5 ` S6 ] X5 d; Q5 I- N H
to do-trust : B3 y+ @& `' d# T+ X9 k' u3 K- `) |) F
set trust-ok False
" O+ U" `1 w; z: K y; J# z$ [. j: ~# ~6 b
1 A$ f7 R- ^/ N- f5 R% nlet max-trade-times 0
8 z, e W) {: [foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- `: s! V4 k# L) k
let max-trade-money 0! P7 P% ^6 G# D9 l8 A) ~8 ?
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
. @/ P. e, O4 T. U9 D% r) h7 t, ] elet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))# l) F9 L* }9 U, g, |' P! Q
' E0 ]* q" ]' {* F/ o
6 H4 u( a1 F" s/ t! K* aget-global-proportion
/ m: r' `% I+ D& Jlet trust-value9 ?, h K: c( ~1 a% T+ h# U& s
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)
9 q% ]) e5 E# D2 r$ y( Nif(trust-value > trade-trust-value)
+ g* u1 D! y+ B I) m" M[set trust-ok true]
/ Y8 O* N+ `, }( X& yend
7 ]+ w( |( I- p* P4 P6 L
/ g3 X+ U+ c @to get-global-proportion
/ s `4 T5 e2 K4 R' e( m8 Zifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)5 l7 j' G N3 K! {( b; O- D3 A
[set global-proportion 0]
' q2 R$ P8 Z+ {1 P0 B0 k" X[let i 07 b; W7 w6 X C/ H2 G8 a
let sum-money 0
+ f# y3 G3 |+ }" i) ^while[ i < people]
% r& z( _7 K- v1 S[
( m: N" X) _4 N# W+ }if( length (item i1 w v+ a, L( L0 `1 s$ y
[trade-record-all] of customer) > 3 ); R5 ~. X1 ?. K8 p
[
! u6 `/ T1 T; U0 x- Dset sum-money (sum-money + item 2(item i [trade-record-all] of myself))7 k7 Y6 t0 `+ L4 ~, m+ O& X
]
) n: O( L1 q7 r$ e" k- R]
; C2 s6 s( v% ?9 d/ \: Blet j 01 o. s1 x g" a4 W5 W1 l
let note 0
# _' W) R; `/ v( ~& Jwhile[ j < people]
: G3 Y5 k R0 ]1 L# k0 b[: N* [+ N$ r1 K5 L3 C
if( length (item i
6 T' K/ Y9 X4 }# A9 T# ~' J. {' x[trade-record-all] of customer) > 3 )
: D2 s8 G1 I) \; F& a[# J k l: @+ {4 X5 \
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)% L# ^: r3 h8 q/ w! e9 d
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 h9 h9 ?/ d# ]7 K7 B5 J( H2 t
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]# c! o" c6 a6 G3 g: o* m
]
. A! p d) V4 W5 m3 n* p]. X1 N6 t' G8 f7 I! [9 Q' P
set global-proportion note8 |& }, I& b a; s# h" R+ l: Y
]
! M$ h. x" ]0 V. Q4 A( Send+ Y8 V: A/ h& z8 [2 I+ n* O/ o
: ?+ w2 C) w; l* }: L! U* pto do-trade! d0 |( a" j) C0 M# v- M; I
;;这个过程实际上是给双方作出评价的过程; V. I8 l' Q; C v
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
3 [; R* M% h5 m: {' }& ^; Yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价' k, c9 w7 H+ A, A. C% H. P4 Y
set trade-record-current lput(timer) trade-record-current$ w6 y/ K; H q- ~
;;评价时间) m2 s% {3 x7 H/ s/ ]
ask myself [& R* U+ c. W3 I9 i0 K7 `- W
update-local-reputation) j1 l2 q1 k2 Q F O- ] K' u
set trade-record-current lput([local-reputation] of myself) trade-record-current
6 J e5 R6 i: g7 x2 C D+ f]
* @1 m l9 V& U+ n/ v) E3 O, _set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
- D) u+ ~. V1 ]( B6 h/ }4 S6 _;;将此次交易的记录加入到trade-record-one中/ @% S3 x) j, X! z
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ t( o, e) v, q7 C) R
let note (item 2 trade-record-current ): T6 u: W* a2 U) N: Z. O
set trade-record-current
( H* R0 y# q! f0 z5 Q$ E/ v% q(replace-item 2 trade-record-current (item 3 trade-record-current))' z+ Z i& V( U" F, E. ?
set trade-record-current8 B* `* y/ `2 m$ J* |9 |
(replace-item 3 trade-record-current note)/ j& O3 @9 F S5 w
. W5 B) e& t/ _
1 @1 z( _1 J; U% Q: _2 i0 l* q
ask customer [) G" |8 Y! ?4 d& k, e; f9 ?. H
update-local-reputation) s6 X# g- x; k7 s0 d$ _# F! G, P
set trade-record-current
1 Q! k% ?- J" f# C( o(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
4 o M0 |+ ~! ?9 O]
- _ ^2 @4 A) Q5 |+ P
, m/ w) g6 F" \1 o a6 c( o( J, |- P$ d8 W2 d; ]" `
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 m2 n& n0 |4 D8 m7 R# H. d
) b2 z( |* J x; [set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))# a! f- N; u2 _ X8 {3 L7 q2 e
;;将此次交易的记录加入到customer的trade-record-all中
3 t0 j! I E( _0 C! [end
1 f4 ]: k+ [) a0 t# o, |
, V8 U# v: M5 U8 W* U1 |5 q6 kto update-local-reputation6 T8 x* `* ~, e+ D
set [trade-record-one-len] of myself length [trade-record-one] of myself
+ }3 Q5 m. `8 q; B) B7 M. Z% w$ b: \! A# B
* \0 l# k7 ]6 \: K* T;;if [trade-record-one-len] of myself > 3
1 s7 Q0 K# [' P1 a. |* L. wupdate-neighbor-total6 y1 u' \$ |' u% w; y
;;更新邻居节点的数目,在此进行
9 H! y- x8 V. z: `& O7 l( i+ zlet i 3
% j2 e! [$ a9 K* L2 S) Xlet sum-time 0
! t& V: |8 d0 Y% ^$ M4 Owhile[i < [trade-record-one-len] of myself]
1 T9 K5 L' P- @& v[
8 V6 `1 ?& g; p: P( \5 b R& bset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
' Q$ y. f/ e; }5 o; c: Sset i
# X, o* P; `- U+ L( q/ _/ ~( i + 1)
% S) O; w+ H s0 U V]
* ?5 V! H, I1 l4 i2 O3 \1 E8 elet j 3
) l$ C* l* m+ L* @, Flet sum-money 0
% ?4 c* P3 X' t4 _while[j < [trade-record-one-len] of myself]* _( q4 x: X2 _; _% j! N+ Y& S4 J
[
1 m8 p! C! o% U$ s0 t- {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)5 g( @) ^. a4 h9 o! r; w6 d! T1 }
set j
1 e1 N' S$ _/ H U6 ]( j + 1)7 m' c7 M/ t$ x' e+ _( }
]0 Q+ J" f6 p& Q% F. S1 B
let k 3. Y" d8 e7 ^- E
let power 0/ u8 n; S! l1 M8 ]1 b& E w# C: E
let local 0: h3 ]4 K: M# m0 M) i* K
while [k <[trade-record-one-len] of myself]) S( V J2 E2 P$ d3 {8 f/ S
[, |( v T0 D, `4 |: B
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)
: [% ?4 K! M4 J: @6 d* R; Kset k (k + 1)
8 c& p+ D \: f6 V. L$ [7 T. T6 ~]
/ H4 O& g$ U B- A" kset [local-reputation] of myself (local)* x, W' i: v3 V- ]- b( o" |/ p5 n: z
end
+ u& x/ t& U' U8 K+ o0 S
' n) E& B/ T. [; ?" Hto update-neighbor-total
' a0 l, l0 T3 x# w' z2 @
3 X, F/ y# \/ hif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
2 v ]6 i4 L; i' v- X2 r1 W; s# ^8 [$ c! M% j
5 _: [6 \6 S X9 Z! U2 g" Dend# i$ l- ?' F5 v0 q. \8 w
! G9 w8 M1 {- h9 S- d
to update-credibility-ijl - V- l' ?! b e$ k* a" ~
/ h. x) l& {9 v; Y, D. V;;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。0 q/ X9 n. J$ L! G0 B; ]7 c
let l 0
5 J5 ]0 v. l7 N+ H9 i2 mwhile[ l < people ]
& ?; d7 M7 ~" _% c: G;;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
0 ~* H \# F/ x9 T4 y% M% s[: K3 X9 t/ |. Q* T$ b
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)4 U) X. n6 j# r) A: J
if (trade-record-one-j-l-len > 3). h4 |4 P! y. q! N' j, c
[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& u# ~9 H# w: a" }% `. Ilet i 3
" {, K% s! W/ c3 [& ~( Wlet sum-time 0& W. i% I. N5 I+ D) ~
while[i < trade-record-one-len]5 M+ h X9 O" }& W" I5 H- L: ^4 |* n
[$ w* I# e7 P6 S( [5 x
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
3 G, u8 M9 i J1 `+ z/ b2 |$ Gset i% D7 P# f' z$ N9 k3 J4 d: I
( i + 1)
, L3 {$ p" i- w5 m3 s! n]7 ~: \; h }1 P% V, o8 |
let credibility-i-j-l 0
2 N' ~# b2 ?; a( D5 P4 n;;i评价(j对jl的评价)
}4 z/ w" b9 \' blet j 3
4 G% c+ V; m- A' }2 Q' Slet k 4
* u, c2 _3 m- G, f4 U5 twhile[j < trade-record-one-len]4 }! K, M6 r' g" Q* |
[
$ T) F* O' j% A2 e& |5 Vwhile [((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6 j3 K/ H% O5 @9 F/ l* F: m* {& B0 y
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)
: f4 M- y, @' a, d" H' Nset j
$ n& D, o1 e( S( j + 1)0 d8 W, B2 k. y& h9 H5 s
]% l1 {9 x3 }% |2 P; v! M9 ^
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 ))+ B+ {2 v; X# e/ B! s/ Y# G
. t& g/ ?* {! Q. f7 R" c5 K
: L) K# m( E, V* C0 s) d5 H7 Q; [3 Vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
4 a; v: O2 i& o1 o& x" A;;及时更新i对l的评价质量的评价
+ u) z, f( B" o, Aset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
& @# H5 N) Z1 y% l* A0 pset l (l + 1)
$ Y. f8 t4 X2 O]
. k% e- k' a/ Cend
1 g# ] H; M; t7 ?# A) o3 G, C" T* R: t* O) v0 J8 C# h4 S
to update-credibility-list/ W. `" y0 S! O8 m8 _
let i 0
: U- {3 B. B: H5 h. H. |7 p3 Uwhile[i < people]( X8 s2 N3 ^; x6 }
[
3 @8 P! q4 W- G7 elet j 0
7 A7 S' W$ Y& u% O! flet note 0 h f$ C* e4 e+ K4 {
let k 04 l8 ]# g3 H2 t w+ ^3 H
;;计作出过评价的邻居节点的数目" t6 o& l0 ^: L' i# E
while[j < people]
% a5 t1 t# }% O: \[
+ g. T+ }) Z& o) ?/ Eif (item j( [credibility] of turtle (i + 1)) != -1)
( Z" z* l9 ]6 A6 m4 O8 Y f* }: I9 \' N;;判断是否给本turtle的评价质量做出过评价的节点; |, C; W! q* h7 O7 S7 k: }
[set note (note + item j ([credibility]of turtle (i + 1))): ]+ J" D1 [2 t) I; o
;;*(exp (-(people - 2)))/(people - 2))]# p9 ~0 Q1 Y; O$ k: K
set k (k + 1) W' H6 Z+ E; u# @. I
]
+ f) e" V U7 r: m* a' L$ t$ Y5 w8 tset j (j + 1)5 O+ c) V9 b5 J
]$ q- O1 L; o- {0 t0 r9 `; D7 X- D
set note (note *(exp (- (1 / k)))/ k)
+ A# Y0 t8 h& O9 I3 ~set credibility-list (replace-item i credibility-list note)
1 \0 n. {: g" G) f+ m1 vset i (i + 1)" S" o1 m- b# c# f: B
]: l. r/ _! z$ L# ^: a
end/ U/ m0 z; e5 M' A
% n; n, k5 e. F
to update-global-reputation-list
: |0 ^8 W) e6 g8 P% G5 Zlet j 0
+ M5 Q/ l8 J4 }* Kwhile[j < people], I( a0 F- _( b
[
4 Z1 G! n" o" i& i) o2 J' J$ Z+ L- Blet new 0
/ M' [9 Z0 L# h;;暂存新的一个全局声誉2 d' w7 y; R {
let i 0
2 @' Y9 L0 |" l5 A1 Plet sum-money 0 F# q1 o3 I, t7 Y$ {! w
let credibility-money 0
( k/ N$ z+ |( d# a6 {while [i < people]. Y0 O* M- H( t8 q- \8 a$ [
[
. l3 G2 @) c7 O. D# v3 l4 z7 `set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))), k4 W9 l8 Y2 a% i) ^5 H2 ]3 J
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
8 Z3 i) {; W- C$ Z" R4 u9 ^set i (i + 1)
3 L+ {2 e8 w |1 _0 r/ y/ z. m! z]; {6 b" t7 k( }. x; Q$ {4 ]: M8 H' T
let k 0/ q8 I# l( r- i0 E! f
let new1 0
+ F4 ]) x- m9 |) c: Iwhile [k < people]
& x/ i$ b }! q: ]1 {0 g g" Q5 T[7 ~2 I3 @* @( I7 D
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 V! w3 a& g1 C v4 h+ mset k (k + 1): S1 p6 v5 @ @+ s+ m) D( ~
]
2 [! }- H* U& C0 X! J: D% k+ @9 B2 fset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
& A/ C: U/ D% k$ E. [1 wset global-reputation-list (replace-item j global-reputation-list new)
) l3 T* H Z9 ?/ |set j (j + 1) F% T+ }2 F; v6 P9 e( i+ X2 J
]: Q1 Y M1 d7 a& H
end
4 P" X8 S3 w- j( a& A6 a1 f- K" e: k4 q5 |- l5 B/ Z
! X* m% S: w1 `( K$ g2 C0 B; ]) M* i7 c a
to get-color( t, w$ P. D$ {7 U3 s- }0 j9 b
7 B' K: G+ c" \4 j) N# |
set color blue- Y, D8 t3 W; u! m$ g
end9 G5 c0 v# F1 B4 W5 y; I$ `6 O
$ [7 B9 j k k; E" ~
to poll-class1 L2 R: K. U5 l
end
/ y5 r, O% A4 G' I ?9 `' L+ F7 P7 }' {; X; i) D8 _+ o4 h4 _) K
to setup-plot1$ Y2 k3 M7 L% }9 [+ y, K
- _0 x `1 v1 u/ ^set-current-plot "Trends-of-Local-reputation"
2 x9 _! k1 g( c" v! Y' m$ |+ i- ?) I7 p
set-plot-x-range 0 xmax& y, f6 R8 G9 K: k5 [: v7 K6 ^
1 ?9 c9 f0 A( `/ wset-plot-y-range 0.0 ymax
, B& T" B+ K) A/ Xend
5 Q3 x4 l; I7 V
! M1 l. _' c0 `. E b5 K$ i, Y3 kto setup-plot2- f! m$ g, q. Y1 }2 e
O4 A% G' @. ?( k
set-current-plot "Trends-of-global-reputation"9 J# w; V* s. Z4 ^
6 g( E0 Z& X0 r# @
set-plot-x-range 0 xmax
8 p/ X3 }2 s5 C" q) t
% [1 F7 m8 Z4 k. K; x/ |' v7 }( oset-plot-y-range 0.0 ymax( n1 {* W$ ^# [* m8 j
end
* b# u, K# i! w
, D3 T5 Z0 ~7 g8 S6 Cto setup-plot3
* y4 E5 t8 Z4 n2 w7 a% o- B3 @. I+ M) [) u9 d
set-current-plot "Trends-of-credibility"
) m4 k# N( ^% V# v8 y
& {" @1 o) n1 D5 I( v" jset-plot-x-range 0 xmax- r& c6 ~& q+ \" i
7 h# z4 Q) q. R/ C
set-plot-y-range 0.0 ymax+ a( f- Z7 o# Y3 P! ]+ [
end" \3 Y4 s- i$ O" a4 X
, p( I; J: o; v0 v# |; ?& s6 A
to do-plots' |( x( g/ R% Z p
set-current-plot "Trends-of-Local-reputation"
" B3 y6 n: m, P Oset-current-plot-pen "Honest service"4 v9 t' v( D* ^6 c; p: z- B
end: G5 }* H' y" C
3 I' K; f1 |. z8 @0 q+ r0 C+ T[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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