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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
6 J, T/ m0 g' i8 [ Uglobals[+ c @) v8 D! F( C
xmax6 y; E# z* c% |3 j3 V
ymax
% t# L( ?0 Q. k4 D6 m7 e4 B) U2 j% d5 ]global-reputation-list
% Y+ r7 g; t! F) Y; M0 N X
% D3 C; C4 E, g% H1 d9 R* q0 Z8 f;;每一个turtle的全局声誉都存在此LIST中' n( A/ o; X1 a) |, `" r
credibility-list
' W8 j8 z c, c5 ?;;每一个turtle的评价可信度8 F! U* a3 C- A* y T
honest-service8 f! H1 ?) V# ^9 U+ c; \
unhonest-service
6 T1 s9 [9 l5 {$ X- M4 eoscillation B' t% s$ E: T# U- `
rand-dynamic1 L( m. W! @! L) P
]
1 N% }0 J6 `- c! }; f7 c( J: ]% F& W8 v( l5 V. o& N4 U& J
turtles-own[
% V6 x j$ @! Q# x& D- t W4 Ztrade-record-all- w5 N- A1 Y) m1 ^2 q6 p0 C/ s
;;a list of lists,由trade-record-one组成* Z5 G! e& J7 G" G2 z
trade-record-one
/ p# s- q( \+ T;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录7 c& y" X' ^! Q. C) r
3 l- M* J& {7 O% z9 v% K
;;[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]]
* H2 J/ C5 B( N7 w& K2 {% atrade-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]
" U3 m1 l; m( acredibility-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! V5 O$ A( D- z; F6 U: i2 ^4 `+ U* R
neighbor-total
6 k a& @5 v! ?# X7 Q6 ~! \;;记录该turtle的邻居节点的数目$ \1 T3 G! M' Z7 V1 [, W
trade-time* t( M4 n% E4 \) I" r
;;当前发生交易的turtle的交易时间4 |8 H: H2 E3 E. @: ~
appraise-give
: z3 J( \5 q6 r: g7 a6 z2 q1 x' I* V;;当前发生交易时给出的评价
: `1 }" P2 p9 gappraise-receive
' _/ A, ?& ~) S3 t9 Q4 T;;当前发生交易时收到的评价: f, i+ c) g/ o$ c2 J" P" l5 _( t
appraise-time
, _# x7 f) c9 e3 w) u0 l;;当前发生交易时的评价时间+ u7 E2 Y9 _7 ^) K4 o' F! f* h
local-reputation-now;;此次交易后相对于对方turtle的局部声誉: Z, ]7 j' c: d' ]
trade-times-total1 }' _9 t; t, ]7 ~# @
;;与当前turtle的交易总次数
$ s; {( a# z! c0 B) M1 Q! Atrade-money-total
( }! ~1 r6 \6 A5 G;;与当前turtle的交易总金额
; z2 W, V, S1 rlocal-reputation
% ?8 g0 `7 }: Q h3 eglobal-reputation
4 X5 X Q1 z+ R% o6 }) Mcredibility
' p Z6 F8 C* x1 H3 n' q;;评价可信度,每次交易后都需要更新
* u+ G* V) {! u1 N8 Lcredibility-all. R9 h+ h2 X+ M; }' J# L! Z
;;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
' H2 Z9 L3 a5 \/ v' ^; ?. q J: |! R8 c: c$ Z' F
;;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
* G3 ?$ I3 ^$ @& L. B- U2 lcredibility-one
) O7 |" K: `; W, M3 O# F' g;;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
% p Q% b7 J! | C) }" Eglobal-proportion
$ {" j5 S( P& kcustomer1 [; A* U+ |# t0 m! O
customer-no
1 R" P3 B+ I0 y+ b4 W9 g+ Itrust-ok' y: @4 g/ A$ N6 \2 D, g
trade-record-one-len;;trade-record-one的长度( C' T/ T$ R3 u5 h8 i8 i5 n
]! a$ j; p9 q; ?! j
* w ]) v( ~- l' d' I( y;;setup procedure, K- F" m- ?( w8 @
3 I2 P. F3 Y+ Q7 t* X
to setup
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- P8 B' v4 h1 z$ b2 |: xca9 N# L6 v( l/ P- ~, n% ?
* s2 L% t: a6 _ d8 g4 kinitialize-settings7 c/ M) l* E" \" g- [( J8 ?
* |/ ~* E K% F& P+ ~8 Icrt people [setup-turtles]$ L; ?6 G% K+ U3 O4 g
9 V: ] X) a0 `1 f3 breset-timer o, u+ l8 ^; J' L0 j9 v; V, E; O) N8 H; M
9 Y6 B6 s3 H y" d4 f
poll-class0 d2 c1 H- c! @) d
1 Z$ P( b9 c( F6 E& Dsetup-plots
' q: F& E% m1 d# ~" R
5 I/ J6 n* \+ mdo-plots3 t7 z/ W1 e8 T5 r0 S/ v$ S0 t
end7 r2 d: D; L' W
) R X, b% C* ~! g. \to initialize-settings
- d8 ~9 ?3 c S& z9 P$ s4 r4 d+ Z/ A; Q0 F
set global-reputation-list []0 B" N3 R l/ q% ?' G; n( h
/ q4 E2 @/ Y7 `1 s* T) i; F4 ~set credibility-list n-values people [0.5]
* }& O8 i) M6 J Y
: j7 r% M/ |& qset honest-service 0
C* I" q; V8 R$ K& }+ \+ x7 X8 E j6 j7 h! P2 D" }7 v
set unhonest-service 0+ x% q" J% Z, \( P& d+ j K$ T
2 Z* `& C9 y6 F6 S! J5 F9 T+ J( T
set oscillation 0# q z- z' i5 p5 g! a6 X4 R' t2 v
G) z; [7 _- m/ Q5 B
set rand-dynamic 0
3 [! C# A, W0 ?+ A9 Xend# M: r- I _8 |# \& K `
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to setup-turtles
2 g% s1 W/ D/ Q# z$ mset shape "person"- i! ]# i# [. R, I' r7 }7 ~( I
setxy random-xcor random-ycor4 [9 x1 e5 ?% t3 J" P# V
set trade-record-one []; E. g1 V3 O% f& ~ f$ P
5 {, K0 y) m+ P+ u6 ?; j
set trade-record-all n-values people [(list (? + 1) 0 0)]
! ? J ? Q: Q& Z
7 t& u+ o& V) O) o. \) eset trade-record-current []* `# }2 D* `: i* Z
set credibility-receive []
0 w0 w/ r/ E& I2 k9 {) hset local-reputation 0.5
4 z9 h; n2 g3 P7 d+ Eset neighbor-total 0
& W7 N9 d$ M3 y+ T$ `1 W Yset trade-times-total 0/ h: D) n5 x# g6 [( v/ Y2 l2 {' ~
set trade-money-total 0
# P: ^0 D% J& e/ n; l2 wset customer nobody
% N& L0 s7 e: @: U% |set credibility-all n-values people [creat-credibility]
& ^" g% x$ M3 ^set credibility n-values people [-1]3 n8 t8 M( K; f @( T
get-color( S1 u1 M9 k! M0 A/ [
: E s( v7 X, y; j. ]! T/ F, ~; Rend
6 k5 k1 m2 v( e. Z( n* P' t/ W* } G
to-report creat-credibility
& X1 @' F8 @( e# Nreport n-values people [0.5]
; e2 J3 ?* |$ b; B: Cend3 b$ I4 L& _9 C2 G2 h2 E
, J }) R9 }2 u7 ~$ n
to setup-plots
3 O% l3 r# X# ]0 o: \0 k
" C4 M/ f' Q/ v" @& }( ]8 o. }set xmax 30
^) ^) K9 C) l' ]8 l3 w$ T* {! g) C
set ymax 1.0
; U, O" A& c+ N( a* N6 d& W% y/ [! J1 V; Q
clear-all-plots
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setup-plot1
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9 p$ X. l1 y/ Wsetup-plot2% w8 m" V7 u% d$ o. H8 k3 g
- l9 c, A/ ?, V% o g0 G6 F
setup-plot37 C$ W! t( U! S4 A3 g
end. Y O! D+ D7 d% e+ ?3 {% _
' A9 U$ q1 c6 c) K6 ]2 e ^+ @
;;run time procedures
# t9 J$ U& y# Z3 C3 v
3 x( h" P+ N; i# A' Gto go7 @; T: c: R ?' _2 Y5 B
7 y5 o g7 I1 _* d9 i% c' Dask turtles [do-business]% ^7 R. T/ n8 B+ p
end
/ N" c* J$ S& ?% D9 [' K5 b$ V k2 y, h7 V! ~$ b) w
to do-business
~# w4 B6 B5 K+ m% K+ T# d7 |: t# ^$ h, f( F$ m, G8 }; `; ]
. V6 ^1 K1 A! l. vrt random 360
# t# P5 i0 N @9 a* ^0 \6 D m4 A P
fd 1
@6 F2 b: w" Y. ~7 g) U9 @4 x) e) G7 F% _3 a, Z2 F; K
ifelse(other turtles-here != nobody)[8 n8 u( B( a$ h! f$ h* u% A
2 h2 S: \; a7 M: ~set customer one-of other turtles-here( T3 O. n$ S8 N, H/ f# y
9 F& d/ Q+ R. U4 E3 R- ~; x7 v! }9 P;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
; g) K2 {# p* a[trade-record-all]of self
) ?* h* y3 j- @$ L2 \$ ~;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
" y% A/ j, t3 O4 J$ b- V9 u
$ G& N$ s4 ~8 k- M. t1 Qset [trade-record-one] of customer item (([who] of self) - 1)" W" Z/ S% \: j0 Z/ ?5 n$ z
[trade-record-all]of customer D/ i- }7 F M Z4 f) t, _
2 `1 e+ U9 i$ V( Tset [trade-record-one-len] of self length [trade-record-one] of self; U# e% t- K8 [3 i0 H2 _
8 O4 x6 \ c& o2 z" _$ hset trade-record-current( list (timer) (random money-upper-limit))
: U1 C Y/ d2 y& _7 q# Q
1 d; l9 i, ^; L& t) _$ f" Vask self [do-trust]7 l0 N m2 H. I8 Y% v4 k
;;先求i对j的信任度
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1 @$ Z' n8 n8 o2 G" y! |" ~if ([trust-ok] of self)
* x* }' B5 S5 F% |;;根据i对j的信任度来决定是否与j进行交易[5 D) V3 f- R3 n3 |6 H
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself- y& N$ k" @; \0 g
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1 u' t) b& Y, p. z4 {" {% A/ y; B2 F2 w$ l9 ?% g
do-trade- o& A2 p" p# q
0 f* A2 ?7 B! F1 U( q, N% Nupdate-credibility-ijl
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update-credibility-list
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5 _ p4 H( X/ v# H) }) K1 Q& Z- y
/ b8 x/ X* R) a: D6 supdate-global-reputation-list
. l, l! j1 b2 }( u" B7 K
/ y1 m0 N# J7 l$ y8 [/ d4 Spoll-class
- s, \$ i0 D. a, y) H
7 t& ~( y# k7 L7 B. uget-color1 t/ |! N! p5 \5 {# b, k0 l
9 C3 }5 j- q: N+ y# D' T5 e]]7 l7 M7 p! b( J0 q1 B& H7 R0 q
$ A8 r5 V+ O3 D7 i2 ];;如果所得的信任度满足条件,则进行交易0 {1 n) f9 \, a- U' u, G
7 | _& m5 D& X5 u5 D[) j" t, L; Q: e8 u
4 M1 S; ^( [$ e; B8 E ert random 360! @) _' S, J' x* A
' h, u8 f! W- F2 C9 Vfd 1 c4 K, l+ R+ G' V* f* J
7 P5 n+ a( W4 ~]
' q* [- {; T R% U* B2 e
# r3 ^" x( \ c- Yend
6 q. B! u/ T9 g: Q) t, `- V
( T0 E9 E4 I5 k+ w/ d9 E$ m gto do-trust
; C! l/ k+ W1 @$ u) a9 T7 Hset trust-ok False, r! J$ T# m- Q; E# |
$ C& i# A0 s! Z9 U% _; Y% r
' s6 Q3 i# o0 w' \1 K/ |let max-trade-times 0
2 L& c0 T0 Y8 Yforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
; G1 o( F4 e/ X, o/ Q: Vlet max-trade-money 0
1 T6 K: g4 u W1 Q+ ` \foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
9 d3 r( \6 H+ F; jlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
# h/ n Z- `: R5 c: t# n! E4 A) ^4 B/ T# y* F/ j. c% e3 w1 O6 Y
' K. `6 l- y* C& E" l) Y
get-global-proportion
% @8 r# C0 z' c' j2 k( @( b! qlet trust-value1 |- \( J8 O6 E2 l0 Y; {& q6 N
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)& O7 m' j3 X7 S
if(trust-value > trade-trust-value)
9 ]' M# D5 z% l2 q# A[set trust-ok true]* r! s- j7 {; ?3 j6 L! e
end h* ^' G& R; ]; I' j: e
6 B( V& x* H* ? \& y" `: vto get-global-proportion
9 W* x+ U& Z. t1 I: C Iifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
' }8 T& d( D4 q; W[set global-proportion 0]
O9 k! R2 X3 H- i[let i 0! \: p& P$ _6 g& f; v6 w* h% R7 \* M- m
let sum-money 0# G" f7 h, k3 j! n3 z
while[ i < people]) X2 j) C2 w+ K# I% P8 d6 o
[
/ d `7 ^4 J5 _1 Zif( length (item i( t- K0 C7 L- Y' n7 p4 P9 l1 }; d* s- R
[trade-record-all] of customer) > 3 )
' C6 X% W+ S/ y2 X9 n[: ` |0 ]" o4 C
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))$ O1 D: g3 j) u
]7 U/ s, G. |( X4 V$ {9 Z
]
1 d4 B( F. W2 q) i: g |, d( ]let j 0" X7 U* t7 B, _7 l2 k" j! [
let note 0
2 S) \2 a2 _) x% |3 `6 uwhile[ j < people]
+ ^ F4 l0 [' ~) N[
3 G* O/ f* h4 D0 q$ G$ \1 lif( length (item i
- \. l2 R2 _- ?5 g& Z[trade-record-all] of customer) > 3 )
E. g5 M* Y0 O/ G) I6 v[
2 |2 [( E' w4 _: b: }ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)1 O3 a, d+ r( w3 [5 T* F
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)] _# R, H3 A3 |
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
4 i/ e5 n0 a$ i6 E3 d]
0 e2 B/ A% [/ {' {4 R0 p1 d]2 O; h$ `7 L8 D
set global-proportion note. h7 m+ I6 D& v
]
- o" L1 _1 ^) N9 I! yend8 Z2 S0 s$ n( J4 ]% B. b/ n
# b* z1 u+ M- d8 l4 \2 C3 t6 `to do-trade) {! u( j( S4 I; L( Q+ a7 b" \+ ^
;;这个过程实际上是给双方作出评价的过程
7 w0 c* @; L. V6 Lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
& x% k( g* l W8 A/ N! r0 k- ^set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( `* [, o" ~" d+ l+ F$ {1 a2 n- [
set trade-record-current lput(timer) trade-record-current
9 V) J# `2 q4 o;;评价时间+ `5 R! P2 Q8 z
ask myself [
9 k) b6 E9 U S. ^1 d' ~; ~4 ]update-local-reputation
- m+ R: D+ g* h+ b5 ?5 i# F0 Rset trade-record-current lput([local-reputation] of myself) trade-record-current$ N: Q' g' J0 g! k
]
" d0 i1 `1 C+ x* o/ s5 Sset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
# \; {4 r- Y6 p% `5 {. K8 {;;将此次交易的记录加入到trade-record-one中6 o% j% F' w6 c6 r- b4 d; M( e( K. g
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 g" K- v t) _) Q) c4 Blet note (item 2 trade-record-current )
- ?' x* O* y1 W6 m2 y! u, R$ b% qset trade-record-current0 \* Q- V( ?4 ^6 @% A
(replace-item 2 trade-record-current (item 3 trade-record-current))
3 s+ A, p" e5 f- X- Tset trade-record-current% w: ?9 X: D/ ^. P
(replace-item 3 trade-record-current note)
8 Z, F1 F" K& I9 [6 B
: c. M6 o$ P) d2 V2 ~+ `7 |6 J4 a6 P. a' m+ R ^' i4 G% }
ask customer [
@# p! L$ ~/ H# {( fupdate-local-reputation# L+ y1 n; u4 a" S e
set trade-record-current
# V; y: x" j: k(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) & a0 U5 X+ U! I
]
7 E7 _, v) }0 P# }' o2 V$ S
, e. S$ ]6 s4 ?$ m( c) X4 C, g0 i. N- q/ g' g8 c) ^/ j: N! F. r
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 H* ?4 T3 O; O- A2 `2 |' c3 S: i7 c9 T/ \
: u, k- G' F% N" I$ Mset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))' z. r9 P2 Z- \$ [1 H. H" y
;;将此次交易的记录加入到customer的trade-record-all中9 w1 M5 w. T6 r( l
end
( \. E, E0 _4 X S0 [6 b! h& [ O/ E1 G; G* U
to update-local-reputation
v( A; {# ~, r( q- T2 H" uset [trade-record-one-len] of myself length [trade-record-one] of myself2 w& f8 j4 N1 P/ z1 M% r
; p+ K3 e3 }0 u- ^& G
* v/ _7 `5 F" V- j, g) i7 X
;;if [trade-record-one-len] of myself > 3
- V( H) ^0 A: Hupdate-neighbor-total2 R, w+ w9 {' S3 d% ?! \
;;更新邻居节点的数目,在此进行
- a6 ]0 u* X& `let i 32 }& C, d$ h, a9 q# ?
let sum-time 0
) ]( J, x: L) G( `5 C1 R/ L7 F8 ]$ Cwhile[i < [trade-record-one-len] of myself]
* R( r& p% ~* p( V+ s/ Z5 ^[5 q2 Z7 n K$ V% e9 b5 a
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )" J) x, |3 B+ }& m7 C
set i
# J' S: k" T' _8 s3 ], M( T( i + 1)0 H% C8 m" Z4 O4 x0 W! d& i# E
]
: w9 O9 N7 {1 x, p) Z! s4 N+ y+ Nlet j 3
) y v5 N% D0 G0 F, O' L8 n/ a+ tlet sum-money 0
# b! Y0 w7 u8 D" _8 N' v3 gwhile[j < [trade-record-one-len] of myself]
& Q0 u7 t5 _8 l' H[! m1 z& M/ P1 i
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)& m9 U8 a# z9 n4 f
set j
8 y/ V, M, x& f3 L* ^2 ?, V( j + 1)( K7 @8 c1 [$ U* E0 [
]
9 I1 P- [( N* K. clet k 35 p* Y, f. B/ F; w( j- K
let power 03 F* e" r4 b" G5 L
let local 07 K, ^3 j( D2 E: u* m( {
while [k <[trade-record-one-len] of myself]) E3 Y; ^" {4 I0 |0 g
[
% c" A; C- J6 d1 sset 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) : q3 K3 m/ d/ ]! N/ \5 ]/ L& {
set k (k + 1)
2 Z) P. `1 ?; C3 y]( b2 U: b/ {% ]: H2 j0 a0 ~+ `
set [local-reputation] of myself (local) u% K. e# q6 S. r2 i% |
end$ W" ^# J- l% k* e
4 V: G1 ^' `0 m0 ^/ F" dto update-neighbor-total. D/ ~ c7 Y+ C1 ~
) m. g* e3 ?& B& u
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
" s8 i% N! i6 {/ Y8 y B7 }
. q, b1 I4 d, O' L* l
/ [/ M, x, D2 v* @! I9 E1 {end
0 W& ]2 [3 ~5 V* M6 J0 w# V* i
/ ? P2 e( a* x0 a7 @. ], vto update-credibility-ijl
+ \* m. d$ z) C' H4 f* i2 w
- e: D" F' }# K$ i) E. b3 {;;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。 P. ~* S$ b; X7 r5 C3 T4 e$ `
let l 0
$ P" ^3 X: P9 I; `$ h, e9 P! k8 Twhile[ l < people ]7 E. C3 z1 O# o; Q4 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
% H' C7 [2 p6 v6 c' Z* C& s# j[
: Y# d: j8 Q3 V% |- ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)# Q2 L) A1 S' P) P K
if (trade-record-one-j-l-len > 3)7 P& s9 c. K$ E; J y" E% O4 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-one
r; ~+ x' \" n D: b/ R8 Glet i 36 A7 R; _. {4 _( ]" q* b
let sum-time 0/ c1 T* X3 d" c' D
while[i < trade-record-one-len]
# g+ p j( w1 Y% B! v2 ^6 S[" f" g+ r* c9 Y8 G5 v7 q5 ^# f G4 R) v
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
1 H5 m1 f: M" |8 r5 i" M& Tset i/ v4 i+ L" q5 G) S
( i + 1). R% Z- d& i& o& d% ^( ]4 Z
]6 K, q- q m" F# B
let credibility-i-j-l 0. I) y# l( O$ X/ W
;;i评价(j对jl的评价)9 K) i' I; J. P( F9 Q/ E! M* T3 m
let j 3/ v" C' ]+ m, @2 P% V1 U
let k 4
+ M! E8 h, _1 `0 Pwhile[j < trade-record-one-len]
2 J5 |1 r; Q0 B[
7 |% s6 g4 R" L' ]7 gwhile [((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, p+ V5 k* B. {" u; S. Xset 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)
6 L) d" s! O* n9 \: h) z6 Z* Pset j. H4 p# e7 G0 l% b. ?- p& f
( j + 1)) G/ Z9 z# v% m" ?3 l9 z; d: S4 X
]( q4 D2 N6 b$ 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 ))
' a9 ]( | q1 S. E/ A M' Q' O Q2 R* G
: N0 [5 J3 a( {5 ?4 o
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 L N0 A/ ]$ q5 w3 v5 J$ m) |;;及时更新i对l的评价质量的评价* n x+ i' w/ i* A- d# W* H1 s: K
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
" ?/ P; U9 O3 C0 J7 i$ rset l (l + 1)
4 Z# P, H/ T% T; y- K]
! A! H- b8 I' M/ Z. ]& k% dend
; f0 h/ y8 a o7 Z, x6 u
) y* B7 X+ f* V! b, S. a: w, G E1 ?5 nto update-credibility-list
9 u6 N, o4 H$ T! q2 _5 I9 R hlet i 0: P! L( @, K! f* S
while[i < people]' M! a e" C) a( ?
[8 ?6 d1 Q* p, p7 U) \4 o
let j 01 `4 \' T' _4 l( h+ K* A% _6 X
let note 0
/ P$ n; t3 K( \- |* p( `2 Dlet k 0
$ h. [0 M O) \+ s! J;;计作出过评价的邻居节点的数目
5 d) f" N5 k' F, Z* {while[j < people]
+ A5 r8 a2 e5 P[
$ P6 b$ g7 H J7 J: zif (item j( [credibility] of turtle (i + 1)) != -1)
! p0 V( h ^9 z) w! S5 j9 d' X2 V9 q;;判断是否给本turtle的评价质量做出过评价的节点% X' q5 Y) i: j/ ~7 F3 W
[set note (note + item j ([credibility]of turtle (i + 1)))
& U1 K) a5 q8 U' C, @2 {;;*(exp (-(people - 2)))/(people - 2))]+ m/ G/ s/ |4 o \; o
set k (k + 1)
- c. Z6 [5 X2 k) K2 \8 [$ A+ z4 E/ f; E]
# g' ]# S" m. u# Aset j (j + 1)
M0 l Q) P: N* i# [6 ?]
5 ~5 j) f$ S$ R# F1 o/ Q2 ^# Uset note (note *(exp (- (1 / k)))/ k)
/ ^- z' l% O( Z' O+ hset credibility-list (replace-item i credibility-list note)& Z( K4 C# R9 C* R/ E) Q9 }4 h
set i (i + 1)
" [1 ~& N2 R! w% V]3 v7 |# r" P2 z+ Y2 U% O& \
end5 h" V; V) J8 ^2 j1 Y
# C. ]+ V5 Y1 r4 T# m D
to update-global-reputation-list7 o. N& {- @6 z+ g$ B! B+ L
let j 0$ \$ \7 T$ X1 b1 g/ b# \) F
while[j < people]3 N' @" C5 e: s# ] b a7 N
[ i! N) n! k$ s+ \9 M
let new 0
& m- S6 ?0 D& l5 n d* t9 C;;暂存新的一个全局声誉3 ^. w& q' J2 |0 d0 }
let i 0" v7 ^4 H) c. Z1 Z5 k* c0 o# C# u
let sum-money 0
9 |4 w+ G' I8 Qlet credibility-money 0
. s$ A' }; _# t6 ?- R |" p% j( fwhile [i < people]6 \( d# f4 E7 i
[
2 g1 C! m) L9 b, i5 @- _1 i: bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))) u- t6 t& P8 Y* p1 G
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
^! M/ m) Z/ T4 o$ hset i (i + 1)2 T o, A' s9 |4 c7 f8 O* N7 M
]- Z- i K" }* e. L0 F; b' b
let k 0+ s7 S! Y! ]8 A \) Q' H& X
let new1 0% [$ ?& e0 K. P; \) x
while [k < people]
6 Y9 H# F5 R- P9 B[
2 E* u5 y, [* j) w( r4 Tset 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)
8 N% }( Q9 q) A, h3 I1 pset k (k + 1), L" O$ z$ E2 k0 C5 z& `2 O$ t6 `
]. v( b8 M+ Y9 H5 }6 U: b4 [
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 1 z# f1 ^' c+ p f
set global-reputation-list (replace-item j global-reputation-list new)
! W5 Z4 e0 n6 h4 Y( i$ J( vset j (j + 1)" H$ L% r( P5 X) F# r" N# _- \
]
3 K8 n/ s+ |+ r0 oend
1 t- B4 m$ U( s' u9 W) j" F" B' y! n3 U
- @0 ^6 `/ m2 C% ], ]
) r5 @9 K7 u Z% Fto get-color
( A5 j5 g- a: \( [3 }+ s& T4 ^9 Y
. R' g8 t) Z0 k; y6 G" gset color blue
4 b0 R$ D$ S3 Z4 [end
8 W+ K/ T% t, p. k+ j5 u' u# s) R8 x7 b+ ?0 y
to poll-class
$ W8 Q- H% P0 f) R+ K: f2 yend
^8 ^9 K2 w( f6 E8 {9 D$ S! O, O, _: A1 m1 E; D [( J; l
to setup-plot1
- D: R4 b4 H* `' B& L) W& o4 U, o9 s% }( }
set-current-plot "Trends-of-Local-reputation"
8 R$ R* r$ T( x& T% S" `4 [! \- z& E' N( [- c$ h5 z' A1 @0 F' ?; r
set-plot-x-range 0 xmax
$ A% {3 q0 \4 n- o% T
- t" C& n$ i" i, m( j F; Dset-plot-y-range 0.0 ymax
" z& e0 b! r: z9 `+ V7 P+ mend
$ _: c" F, D8 \0 S8 x- F- u" z9 b, ~
to setup-plot2
0 Z4 n8 v$ y" Y3 h0 L, ], r: T7 I/ A: P/ P5 l2 _
set-current-plot "Trends-of-global-reputation"
& p, |6 P3 |# e; `3 A$ ^% }& ~% H3 G5 T; R
set-plot-x-range 0 xmax# b( ~5 U0 Q5 _$ I+ ~; f5 @
: Z5 R" W* J5 `set-plot-y-range 0.0 ymax3 y6 Z7 t" |$ ^2 C7 {& b
end
7 v z+ W1 @! Q5 h j% Y% E9 }+ R% ^2 m9 D: ~
to setup-plot3; ]! o7 h7 l) M( Y) [
" M: h# Z" K0 M* [6 X( S1 `set-current-plot "Trends-of-credibility"6 Z K* U5 K [7 d% X
" a/ V# w7 [0 x" K* bset-plot-x-range 0 xmax
- q: `' L# ^$ W2 Z4 s
4 A; J& s: P! w6 Qset-plot-y-range 0.0 ymax4 |0 \! R7 f! y0 X6 J3 F3 ~/ a5 A
end
6 m( S; z8 x* @1 T
, I" L- s& g; H2 c- |* { G$ E7 W' X4 oto do-plots0 X" P, [4 X/ u& g' _, ]
set-current-plot "Trends-of-Local-reputation"/ G2 J8 M6 _9 M- `
set-current-plot-pen "Honest service"% Y G; S e4 B. W' {* w
end
1 i) V* D; J$ d7 }5 F+ [) C( e! z2 S
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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