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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
8 ^3 ^4 f: m" @' U, jglobals[
. {+ y$ O/ {) O; J. V( Oxmax
1 T; n+ B; l; s0 \- w1 q7 g5 U! y9 N3 xymax8 [% M, Z+ J4 w$ `
global-reputation-list& Z0 j: `1 J1 t8 v
( K. Q0 ~. ]' D;;每一个turtle的全局声誉都存在此LIST中
- y. }3 c* ^( X: z4 | I2 Gcredibility-list3 [9 T7 s3 s2 {3 w' A/ c% U
;;每一个turtle的评价可信度$ s+ h8 Y- ]: F! z* a
honest-service
$ c5 _+ `2 i& J9 ]3 ^; I0 x! Xunhonest-service7 \0 G" k% W' m/ g8 w6 A
oscillation7 [7 p M8 e: M+ A
rand-dynamic) O% b0 P$ r$ @" ]* t# J8 R0 N
]
) T4 B. g8 x4 e' W' f
& r ]7 _. M! x* _' P- Oturtles-own[1 v) u; `! k/ }7 |; Y. O% D
trade-record-all4 R& V1 i3 G w, L+ k& r; \+ H4 `. m
;;a list of lists,由trade-record-one组成
( K8 O5 [; n3 N9 E! l' v/ rtrade-record-one* m" o% o6 I, [0 y" q& x7 k2 f5 z5 m
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录" W7 J/ T$ ~9 Z0 N- `# p
9 L& B* N- _, r- 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]]4 i8 S* ]: m2 O5 A8 Z( 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]
) |, @' b& h8 B/ 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
& M I: T, F% o- e' ?neighbor-total4 H8 a+ t( z# W& n7 V/ r
;;记录该turtle的邻居节点的数目+ ?1 j9 o# m! [* k7 i" C
trade-time: e/ T5 Z) N/ G+ w
;;当前发生交易的turtle的交易时间/ O2 R3 J; }! F3 \8 {( `5 F+ t
appraise-give* E/ T5 {1 n' R# b
;;当前发生交易时给出的评价
6 N# ?6 w4 q. E F1 R7 l7 b) |, pappraise-receive
` a9 C/ e; L. Z+ ^;;当前发生交易时收到的评价( i3 p2 p3 m, H- r% i5 E9 p5 D
appraise-time, P& d( U" U: J: Q& |3 W& l8 y
;;当前发生交易时的评价时间
% a- M* B. w% _' l% a: u- x* `7 _) flocal-reputation-now;;此次交易后相对于对方turtle的局部声誉4 M3 c" f4 s" m* P( @
trade-times-total8 }" y! x1 w0 t. A0 I' Z
;;与当前turtle的交易总次数
+ D. b) `" Q8 A2 Q$ Z. ltrade-money-total" B5 E+ L' p8 c* W
;;与当前turtle的交易总金额/ h* K" ^; s6 f8 ^! b
local-reputation$ S0 I$ d, l; P
global-reputation
' x" u( p3 T# P' x& x; {credibility! a5 j0 a# e/ q5 C9 C* e) W3 X
;;评价可信度,每次交易后都需要更新
2 f, n2 l' Z1 s6 ?. O7 L; e/ pcredibility-all
0 e& ~5 s! R' Z 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
. Q4 o: k' I: Y3 q" p6 y# q8 k
/ l* f- Z+ t0 l! |, K! b;;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0.50 M* q5 C2 N( e& H# `" k
credibility-one
7 @: x1 M( ]0 P0 z;;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' j& ^ ]" Z4 A% x H# X T
global-proportion& r3 B9 Z1 b# t! ~3 k5 x
customer
+ e" F8 m+ B9 f/ b& icustomer-no
4 o& U* b; p2 V9 s. htrust-ok3 m# @) m6 F3 |8 s/ g
trade-record-one-len;;trade-record-one的长度$ \( d& o/ \" J" P0 Y
]
% V; o9 K' H( y9 S# J0 U0 R4 b4 D" |$ q1 O. {0 ]
;;setup procedure
" u! S1 n! i' {/ p7 M6 g7 ]4 s( W4 h! _6 h8 M8 h& \
to setup
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ca# S" A% i5 k0 ?! |
, V4 d2 l5 ~& b6 w9 q
initialize-settings | g3 }& Q+ g3 v2 ?: K e
$ n# w" r& q: F' ^
crt people [setup-turtles]% O8 A+ q: u$ j) z& L5 ^
* V+ I3 L" m* ^ ~1 u2 L# K
reset-timer
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; k6 |& b( m I, \poll-class8 {+ @7 {9 _8 j# T
! [: H# \0 Q) F/ [- f6 ~/ [$ Psetup-plots& k5 l, w: b+ g. `6 z& [$ O
& \$ ?6 ]- w7 H* A+ |3 D
do-plots
( c a6 [( W; y2 I" Tend
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1 T5 W( k' e& T6 p- qto initialize-settings
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set global-reputation-list []
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set credibility-list n-values people [0.5]
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( }. w9 d7 j( J) e! v3 Y* `set honest-service 0
W! h6 y% t" N. a
3 h+ [4 L' m0 Q/ @" G: b( jset unhonest-service 0
& a- w1 \0 k9 X( j- T' N1 I, ?4 t: h" F- W9 ~
set oscillation 0
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set rand-dynamic 0
4 r+ x% |' f8 z- f9 _$ Yend
, M) L: N4 Z0 {3 i# _9 y. O. j: j, w, ?+ }
to setup-turtles ; s- i& D5 K1 w0 N* d0 U5 }- b
set shape "person"/ q% s. y5 g9 o0 j) r4 |: {$ h
setxy random-xcor random-ycor
; G4 t4 i2 v6 m, r# y9 ~. M* Vset trade-record-one []
2 l# H6 q; B, o7 w9 x! O9 ~$ i8 m
3 W1 S+ o% c1 ^2 z- N1 F, H' A0 k& iset trade-record-all n-values people [(list (? + 1) 0 0)]
3 x0 R) }3 R) l1 m# u9 Q4 B. m
) Y' v) ~/ L" {4 z1 A9 N+ W/ iset trade-record-current []
! J8 L A" ?* j% z2 @set credibility-receive []
4 w9 }) X- f" ~; Z* z' ^& Kset local-reputation 0.5$ U4 m# J5 J) m
set neighbor-total 00 Q5 S0 h+ ~. T. ]$ v. S, M
set trade-times-total 0; C7 j5 C" m$ h- p4 I1 Z
set trade-money-total 0+ K2 F8 V9 \9 n& y
set customer nobody
/ O' s$ ]" V$ J5 hset credibility-all n-values people [creat-credibility]' X. N+ K' ?, d6 b, T# {
set credibility n-values people [-1]
0 L3 b9 m# u0 N/ |/ mget-color
+ C$ z$ u9 O" \0 H. @3 O6 O* y
; D- M! G& Z, f& y" Gend
' P9 q; M% k4 n9 i/ n8 _5 A: d6 Y- U5 K! ~3 d: S- }. L
to-report creat-credibility3 y/ y. u; V; Q e, U
report n-values people [0.5]
9 u! B( A6 E9 u- A) S9 g: vend# k( j/ O" d& K' H! d7 {. c% z
! S$ ?, \; `( w2 v8 J3 V8 eto setup-plots
0 ~4 F+ F- F6 |, _$ _% i, `: z7 S1 S) O% c' m0 T9 J) R
set xmax 30% Y. z6 B" P8 L+ e6 k3 }
) b$ E3 z9 x j1 p8 l1 M. kset ymax 1.0
0 d H2 ], e b% L+ H
4 w" `( h6 ^+ S6 Eclear-all-plots
. Y1 w7 G/ S G/ [+ F0 | q4 |
6 w' X- g2 j4 p& j+ n1 nsetup-plot1) a9 |0 ~9 h8 U0 @ z9 [! {
$ ?9 c8 L$ S* z: V1 n1 Bsetup-plot2! ^( @9 x+ Y0 t9 } \
' ]' z x% _9 f: B! j; M: v
setup-plot3
6 c+ X# v* b1 F" D4 |- j2 `end
' T3 A" \! |& B& }/ `9 T& |. z" _/ k' f4 B3 E0 a3 K, N6 u" e) g
;;run time procedures) g5 B( E6 G) _' A- x
. F% E7 t5 H% ?, n( Q' Y8 t2 |& vto go8 v! d1 {9 `7 a: K: b1 N3 F% I
" m5 T- M1 s9 s0 {- V
ask turtles [do-business]: g' N) l1 v( g: z3 w
end
7 h! p) V% B8 Z0 [" @0 d" W' O; g4 Q6 h
to do-business
* v& @% o/ x& s* @3 G! W+ K# I0 u/ w4 N$ C% q8 ~1 I
- j6 u y1 z2 C' | n
rt random 360
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; S. [/ s5 Q6 F$ n4 G7 D" Cfd 1
. t9 v* Y1 c: h" U* z3 h5 R8 N* F$ {. u( x: l/ ^" K. @
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
: }7 J. r6 `/ A
. ]8 u& o/ R" ?& X4 j;; set [customer] of customer myself
# X W9 K/ z) ~9 A' t1 d& Y
* S' I1 K/ G+ D9 |/ l9 W2 iset [trade-record-one] of self item (([who] of customer) - 1)8 K# B9 z( @! H) j. z- V
[trade-record-all]of self* F. [6 Y/ c* s4 z" e
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: \9 B6 M" a9 u& S' q2 f7 r# _7 C* x4 w, N! J( ]- @# b
set [trade-record-one] of customer item (([who] of self) - 1)
. p+ D2 W6 o4 J% w- C[trade-record-all]of customer
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3 \' }/ d; b/ r2 n9 ?" K4 Q6 `" L0 ^set [trade-record-one-len] of self length [trade-record-one] of self
1 {6 V: G3 `/ x \# n. G% I6 F% E: T, E* a; S
set trade-record-current( list (timer) (random money-upper-limit))0 ]! r. y6 r6 y# m- @
) D2 v" I' s, w1 d! y5 K. Sask self [do-trust]
4 M- \; E, l- w \* m2 z4 f;;先求i对j的信任度
' q/ [; a- n' f
) M6 |3 g |" {" K( b8 o7 y$ Y B+ [if ([trust-ok] of self)
" c# L" h/ T5 C; P; l) d r5 P' R" u: s;;根据i对j的信任度来决定是否与j进行交易[; I6 B* B6 d9 M5 f N2 L3 x X0 Q% k
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[$ B* [3 M! s* B& t
% X& k* u* Z: o9 J6 D: |
do-trade
2 f2 O3 c1 d6 u, k( ]# J" u
9 q x! _ z4 I, C6 o$ C$ Gupdate-credibility-ijl& `+ F% |9 C' o' \ G5 _/ o
' D3 m6 |1 _ ~5 |: K
update-credibility-list
% A/ a0 s5 n; F( x( z0 I$ S7 [4 y; v- s$ q' j/ _+ Q
2 R+ ?3 q- M5 t9 z2 j
update-global-reputation-list
1 f- h, _ V7 _ m1 d! F1 Y. a0 x3 p3 c& E
poll-class
' h) o% o: j5 y7 @3 V
2 I9 V( j Z# Y- X3 Wget-color
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- N1 h. I% \" t# W% d]]
3 Q2 r6 k: R E& k# X2 w8 C# s
3 u% F1 i& }! V- V& {/ E' e4 y& B$ K;;如果所得的信任度满足条件,则进行交易0 K; ~, }* i& K( U8 F
) j. s5 [6 \. Q' J8 m# `" Y8 H: X[9 I3 s5 v9 a4 C m! v
: a Y, @% y! p" urt random 360
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fd 1+ f& c: G8 l0 V) s3 y0 x
) H) C# M. ~$ Z1 v8 p( q]+ q. T" b: i. I2 r3 B& B
$ h- C: r1 Q2 r' j; r
end
$ x; J" F& t2 Y. a7 U, r4 r* @% ~. l
to do-trust
$ x" q$ @4 Z# l: W' ^4 M. F8 ]5 Aset trust-ok False
0 u8 c& C, A( r3 w( j M" I+ [ J$ y6 r, K8 y8 G! `4 h
: Z5 J1 _9 W( llet max-trade-times 0
0 S. e3 Z4 _5 Z6 b F. |( _foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 M# n# [' v/ M- I1 E; j) P8 [9 J* Qlet max-trade-money 00 l P* k& _1 H# x. ], `
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]9 }; j1 B% @7 E- D' e5 w: e! g2 `
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
. t1 Y( l6 s1 b: T) Z ^% D B# ^- L8 v- `+ [' }4 W3 \+ }4 Q
3 @4 ~5 q1 A, f& _! Vget-global-proportion
\3 L0 M- r" _/ B0 o9 Nlet trust-value
! S" c: _$ T& Hlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
* @3 K; c: G1 F* K" o1 } tif(trust-value > trade-trust-value)( @+ H v% G7 ^
[set trust-ok true]
6 X2 N* p, {2 {7 @end
- s" w. e' \' A T4 V9 _
7 ]# Q6 \" {- M* s& m% g3 Hto get-global-proportion
' u, O7 f3 ?+ bifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* w! X' `( a) \3 }6 F7 f
[set global-proportion 0]' r" k5 u( ` v2 O/ G- L5 \
[let i 0
! B' Z1 H$ P% h v$ Elet sum-money 0
+ k+ ]9 P( y! `" y! S* n3 {5 L5 Dwhile[ i < people]
- N0 K( g3 f. b4 |; w9 v0 T1 X[2 v! }5 K2 ^+ ?" K+ ~% f
if( length (item i3 f7 m* t1 }4 ?
[trade-record-all] of customer) > 3 )
9 E+ E2 }% T! y A4 i% q[
8 o+ N6 V6 i; p) t$ K* Hset sum-money (sum-money + item 2(item i [trade-record-all] of myself))3 K! j' j; E- u# c
]3 T. ~7 f/ E/ x0 z3 K$ n! k/ G. j
]# B E B, O# b
let j 0
% y9 P6 T8 x0 H* L7 B6 Clet note 0
) i# R" X) P- gwhile[ j < people]' b7 Z2 B1 m9 l5 g
[0 y1 R* \9 d+ G/ X! T
if( length (item i0 ] p. H( i) d4 n4 W5 ~
[trade-record-all] of customer) > 3 )$ a, k4 q. `6 x3 N" r8 T
[* A$ ]( W" Y, s, S$ H
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)- `7 @4 P& ]' E# x- }* ^2 P$ n
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
! Q j6 r. p8 K6 E T[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]2 @' v V$ i" q1 t2 g: G
]% Z J3 A% R. X! Z
]/ t: g. d$ l0 T6 J% ^
set global-proportion note
0 z- p7 L7 L' e( y1 h9 r0 `3 _3 C]) [+ }3 p9 m0 i6 @# I" e
end
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to do-trade
3 ^. x f, s# n+ [9 ~2 L# N5 B;;这个过程实际上是给双方作出评价的过程
; c6 a: ?7 M* t) Q/ ^5 Pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价$ o* B3 v* N s$ w |
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
1 O0 s) D. [2 ?, h- P n2 G+ vset trade-record-current lput(timer) trade-record-current
1 e1 N% e& f5 L' k. c* p$ j;;评价时间
& ^2 }6 l. H* X& e4 U+ p5 Wask myself [; \+ V1 ?, I/ d; A; `
update-local-reputation; Y; p$ T- D: c3 z3 }
set trade-record-current lput([local-reputation] of myself) trade-record-current
! I `% J5 c8 q8 p; T0 ?]
0 r& E" X' L9 [8 ^4 }set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
4 t- H' z/ X/ j. K/ B9 f0 f0 G;;将此次交易的记录加入到trade-record-one中
, g4 k1 U1 `# E# N( s6 y: t/ X1 Jset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
, n. Z9 n' p1 D5 D8 ylet note (item 2 trade-record-current )
% N! Q: @# i( Z. s) Z) ^- ]5 Sset trade-record-current- s5 K9 B& R/ m, k) {9 I
(replace-item 2 trade-record-current (item 3 trade-record-current))
& J' s0 `9 P- e5 N2 L* dset trade-record-current0 I& @# F$ I; Y+ H1 Y$ j
(replace-item 3 trade-record-current note)
2 O5 ^# N# w u% l+ F4 x8 S! s# {- `8 `
6 ?+ N% l& f: e: `) W, s. Jask customer [
3 F/ U, B& g' p3 Fupdate-local-reputation
! n6 ^* l2 ]# e" eset trade-record-current7 Y: r* ?0 u- M
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ' m. S. H$ P" O
]" T, }/ Q! h! y3 {. [6 Y
) M; F! X9 ?0 Q6 u* X. d9 G& w. J1 t0 u
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer5 W" F- d' E8 Y2 C
& ^, T9 X/ x! _. u% gset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
2 B) {3 A5 a# V3 E;;将此次交易的记录加入到customer的trade-record-all中9 r3 N& D7 V ^% y/ q
end
1 _/ I" w! ?( _ X4 b; |
( t) I! `( w' s1 nto update-local-reputation
. [- R3 ~8 j1 W8 bset [trade-record-one-len] of myself length [trade-record-one] of myself( f0 i' U. ~* u9 a& W2 H5 C
. u* B w: W+ n$ g( a
* t/ s* L8 |) c+ C; g;;if [trade-record-one-len] of myself > 3
' G4 X5 p, @( \+ G# Pupdate-neighbor-total( G; B$ U) L. Y% b, {" F# O
;;更新邻居节点的数目,在此进行
5 D" ?/ _0 |" q/ m# g) Jlet i 3
0 {: R# A. c7 b% tlet sum-time 02 Q0 Y! A1 Q# n1 N4 m% n' R: [! C
while[i < [trade-record-one-len] of myself], m! {$ k+ y7 w! T q0 M: e
[
" d/ x1 @' P7 a- K, G" Aset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
' j/ R% }1 g) a* ` h8 B, | Wset i
~- z* k- L) `# ~( i + 1)5 \# Z. j! b. `
]
" s m2 F# H4 O* p+ klet j 3. o" Q7 W3 ?' X/ o" [' [0 Z4 W. i
let sum-money 0: O- M( R) @; ^$ w% c9 W
while[j < [trade-record-one-len] of myself]
3 ~- T7 `" W! `! b8 S& r( T, Z[
+ W. ^# Z2 ]4 L7 v% V- Y# Oset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)# K$ W* v+ q. A0 J7 a$ ^/ i% P
set j
% k: r$ r+ m7 Y0 Q5 b( j + 1)
( F( p- `& D, c4 x1 u/ H3 i# w]
( T: U' L2 t. c% ^* mlet k 3
1 s+ J1 N% Q% plet power 0+ F$ p2 J9 j2 Y, b1 c% X: R
let local 0
% f5 i5 |+ U( ^$ [7 _9 W* Owhile [k <[trade-record-one-len] of myself]
) g) k) m, M ]" W6 C[
4 T! w7 E! F: Y2 q7 A- X7 cset 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)
( }; f+ g9 Q/ f, h f4 a# B" K0 cset k (k + 1)
9 J, F# y! p$ H% o) t) r3 w4 G]& i- C5 ]! ]; d* F6 R
set [local-reputation] of myself (local)
4 t! g, k: R( m4 Q7 g" S1 F8 qend
- e c' A! Z# y
2 H) q) H l5 j8 ?2 w/ tto update-neighbor-total- E; H* v9 B K8 Q U
6 ~0 D z! T9 S% ~% p0 Y+ nif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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6 }) R1 r: D2 n5 Z, L* c
1 {1 O, P* ]9 T- Z- V) G6 [end
T% Y9 J# a8 K( C( ]2 B7 N S# L8 p5 c# {7 X5 b0 M/ D, C7 ?( _7 `
to update-credibility-ijl % W3 Z, T4 J) V- v N& [9 d
5 b7 P: o" J+ F% q X% I" s% M
;;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+ A1 D! v3 |7 e, Qlet l 0" Z: S ?9 S# A+ p
while[ l < people ]
6 `* ]* }3 ^- ?4 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4 o# g$ X/ {/ M z3 D1 }% ^
[! J# {' c+ E S G0 r
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 t5 b4 z% x! n+ a# C: K, m$ G- M$ Pif (trade-record-one-j-l-len > 3)9 b) `$ c3 i& | E6 d, Q
[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
4 g3 Z+ e9 E/ F3 P* u7 Q: X. d+ plet i 3
0 V0 e n2 V. s6 H2 p5 p( V5 Ulet sum-time 0+ {7 B" i/ J2 ?$ [& W
while[i < trade-record-one-len]% w0 M H+ Y; K$ V1 n& U& i
[) \3 Y5 M. y( P: ^
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
+ j# E1 E2 c9 {. jset i4 K7 t, ?$ K8 @- d4 u$ O
( i + 1)$ f# Y5 X5 R7 v3 X; R9 ]9 ]
]
2 T/ ^$ N: o2 a1 i3 o+ tlet credibility-i-j-l 0/ Z! z% S$ v7 T8 D8 ~$ Q
;;i评价(j对jl的评价)! R! F3 ^5 I( X
let j 3
5 h) X$ K' D6 c, U, Nlet k 4
$ b* F3 ~9 T4 ]) A$ \0 xwhile[j < trade-record-one-len]8 L6 Q3 F" R0 S& i
[; }, Q: @8 M$ F8 A
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; C; a# `- F+ E9 E
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)
! i& P! ]( o9 Vset j
J. R9 W& X4 ?- }# H, q9 E0 h6 ~( j + 1)! K. O j6 ?4 Y% Y
] Y5 O- s4 W4 R4 y" R
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 ))
9 Z2 \& A2 }& R& l1 `
6 `' Y' l" ^; L
; U+ S: H7 M- R; S; ]let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
. G3 V+ K: J7 W3 ^: t! J;;及时更新i对l的评价质量的评价
/ z& m4 g" `" D% m: g) Kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
+ x- B( c: E! `& ?3 K1 z0 Sset l (l + 1)8 m" z5 I3 k4 y' U1 U$ K0 j
]- k6 Z& N0 l/ S# {
end
7 H. S. H" W! b2 v1 `- {) x* @) n2 N' Y3 S8 _1 y. N
to update-credibility-list
- L+ w2 ^2 v: Elet i 0
) |# _/ @- D8 [( c4 `while[i < people]
3 \" J. Q* _4 Z0 m[! h5 _9 I" K" Q% H3 W. z+ U& v
let j 0
9 E9 Z% y# P3 _4 j+ L. a7 z( Llet note 0( m3 J2 X% W9 u; P9 h$ D7 v
let k 0
; S4 M5 h; l7 d! {1 |4 w;;计作出过评价的邻居节点的数目/ C* ~4 B+ I+ P }( e |9 b# j
while[j < people]% `4 s; h' b2 {/ c" N: b
[
! p. X! L( L$ [9 U) Zif (item j( [credibility] of turtle (i + 1)) != -1)$ s! Z1 A9 d1 U* C7 l1 K
;;判断是否给本turtle的评价质量做出过评价的节点- T0 K$ e; `& w4 Q2 Z' Q. |* x( q }
[set note (note + item j ([credibility]of turtle (i + 1))), Q |* M4 e5 b6 _2 }- Q: Z8 G
;;*(exp (-(people - 2)))/(people - 2))]% O3 p8 ~- } v
set k (k + 1)6 x* t' Z$ Y: D0 L: g- G
]
' { V- n3 x4 V$ A4 p; bset j (j + 1)
' b; T8 N0 N/ v# Y]
# v/ C2 u, K' Z' X z- v) k% aset note (note *(exp (- (1 / k)))/ k)7 U: v5 N/ q5 W( G# Y
set credibility-list (replace-item i credibility-list note)5 d7 W* B. G2 Z7 T& O5 u
set i (i + 1)
% w ~' H. X1 U/ u]
4 N- Q3 Y0 c9 A/ Aend$ v g5 t2 i1 K! A8 J* T8 @
) {- S, W z K$ {7 S, v3 d* g
to update-global-reputation-list
: B1 Z9 |2 M& I6 Mlet j 0
) h; O, p( t5 W, Uwhile[j < people]
& K# m, t& ?5 H[
( ~$ U0 M% G: |& _* L# ?let new 0- ^0 ?3 |, O; C, s! J
;;暂存新的一个全局声誉
0 U% A3 y) k8 l5 Dlet i 0
+ W4 j0 B; G% Z) Z4 c. Elet sum-money 0
$ n3 f, s/ J9 }let credibility-money 0. Q% u' z( {. w: ^
while [i < people]
" t" P+ h7 u/ T8 r5 C! A7 Z[0 b& d& Q& L' V! W% ]
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! b9 E* ~1 Q( r( |
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) J' U' N) I6 hset i (i + 1)3 s/ @; `" q6 E7 z; E% ]
]
" U3 U8 ^; n/ K% H; m) G! Plet k 0
$ |8 X$ E9 K5 wlet new1 0
, b: v8 _. `7 H7 q6 d7 l% cwhile [k < people]: K, s; R3 L( [( B% x6 C
[
& ?( R1 C S u' oset 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)
: n" B% o) J- w$ F3 Cset k (k + 1)
) I* P2 y0 ], Q]
- V0 e2 x0 h. Q( p/ T) |" fset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % u! ~- S1 I$ P
set global-reputation-list (replace-item j global-reputation-list new)
3 O1 h, Q( x. @* a& B. X s. a7 qset j (j + 1)/ d' I6 T0 t$ C6 i/ v
]
- \3 P! @1 U* @end
3 c- ~8 k* S4 a0 }$ Z3 g
; m2 P* m$ j% O, Z, B* Q9 L: N! D2 p$ |) p
- R0 v. x# {$ U) {to get-color
, k8 w% C( P% c' M: a$ z$ R+ B0 s% a( n9 S+ u/ \. P S
set color blue
w$ r5 s. {1 Z0 q0 a& c8 Pend2 ?: n) z6 j0 S6 [ {, C
. r7 @5 U7 G6 v7 g! {1 Y: Gto poll-class
4 E0 g" v' O7 U3 e! Q( xend4 ~% m. p, g& c/ t' x) n
0 g% H, k) y4 a6 {to setup-plot1
# K) t- ^% H; Q8 p+ l% [# R% t( h
# O/ Q% X, J7 E% T/ a8 jset-current-plot "Trends-of-Local-reputation"0 n2 A% U0 W! C6 B* d" e' }
/ J# Y' A! `$ V, u; a- i
set-plot-x-range 0 xmax8 C: g$ N; x7 {6 ~+ r+ i
2 f/ m/ D8 _& a) t2 w
set-plot-y-range 0.0 ymax3 a) N; `/ D9 O1 p; e8 I
end7 L- X n6 B. w5 |
y/ I0 W: I5 C% s6 g7 d# c; rto setup-plot2
) w( E. }3 S2 z u. I+ e
4 w5 u& z5 D1 s2 j7 U/ T% e4 Pset-current-plot "Trends-of-global-reputation"
5 ]2 F" W+ ~4 F5 `% w5 z# G$ D# ^& A
set-plot-x-range 0 xmax* D4 Y7 @! Y& C3 s0 h
/ Q! z' o; K. W, q
set-plot-y-range 0.0 ymax, @6 A2 x9 w5 ^ P
end
# j$ Q; Y" D0 T6 v. O
- H( @; ^# f: k, ^3 M1 s, E3 \to setup-plot3' K% P0 D5 s9 v/ U" W; T' U
9 D$ b; b% m$ i2 i# c! t1 mset-current-plot "Trends-of-credibility"
8 q+ m- X5 w( f+ ^ Z0 i: q# A% @( b/ q% }4 s) F {( J
set-plot-x-range 0 xmax9 t$ T7 X. S! S) `9 x
: g+ Z2 i4 U9 f8 @set-plot-y-range 0.0 ymax( t9 q. X; c5 K F! Q5 b
end, t5 X' B7 m2 c: T, c' P
3 L7 H2 |- v; {to do-plots: [7 [4 }, y+ f( X/ |0 B% G: }
set-current-plot "Trends-of-Local-reputation"( y3 Z5 u- p+ I4 O- n
set-current-plot-pen "Honest service"" r7 \. U! k- V2 I% D0 k* U3 F5 e$ D
end) ~. E) p( L% C# i+ {
$ w9 F5 ]' b- X% i; a* U[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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