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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 [% b; E; b) h* k
globals[
+ s8 L: c1 M- C: s* _2 y' Lxmax# ^$ Z3 R* T4 D0 q# L1 k# F2 o9 ?
ymax
; ^5 z8 h3 O0 d& [8 y8 s" T) ~global-reputation-list
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& A" t O' }7 T# N4 E% V5 b;;每一个turtle的全局声誉都存在此LIST中, }- F! B9 {% t% S
credibility-list2 y( d- _ e9 j. C" d! n
;;每一个turtle的评价可信度4 x3 J: h7 N; Z* }; q6 j
honest-service
0 H9 Y, c3 C* w& p7 k, uunhonest-service. Q6 \5 g; l9 m, P
oscillation9 f9 o! [/ e5 y0 r9 f
rand-dynamic2 a. N1 H. L; M* p( ` U5 _ s7 Y
]4 n: f* v9 Q* Q8 y# l
( K* A- B' n% ] g" P+ ]turtles-own[. Y0 f8 Q% U$ D0 A0 I% q
trade-record-all
, v5 j3 i2 A7 r* _ G;;a list of lists,由trade-record-one组成
/ B& _& Q5 J% x( b+ Strade-record-one
, u" z. T, c( Z8 ]1 p% v: v;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
3 k" b0 ^! j$ W) T, X8 [9 L* H2 S
/ k. x0 B0 B( _; `4 r6 h2 J9 j;;[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]]+ x! p0 F* t C) _. Y9 z/ X
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]
@7 U7 {- C! C: tcredibility-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
) s. f, A1 R, Z5 ?neighbor-total( L7 v4 W/ p8 i V1 Z- n
;;记录该turtle的邻居节点的数目
2 k9 g$ U+ b; O& m6 s7 A9 R0 ^! ?: Gtrade-time7 N b, Z) J0 w/ @1 B3 e) `/ @
;;当前发生交易的turtle的交易时间
3 X: @* P# g! I9 U# ?2 Lappraise-give
. s& X( f, o- }2 \9 q;;当前发生交易时给出的评价
+ R* k' J* I. D5 n, b7 Q) b, i( w. aappraise-receive
- N7 e) k: m+ m8 _% X% M+ E1 X;;当前发生交易时收到的评价
5 v# d0 {1 p$ n/ E. G, u. Iappraise-time8 `* Z( e! l( W* I, P$ M
;;当前发生交易时的评价时间+ D# L, o5 T u- c
local-reputation-now;;此次交易后相对于对方turtle的局部声誉! I4 I# u+ w ]# R9 X) x: u# G: t
trade-times-total
$ O- Q/ p$ \7 [+ n* _. N! |;;与当前turtle的交易总次数) R& S' K. D' A1 p j
trade-money-total
- n0 G+ }$ z/ Y6 a j# @;;与当前turtle的交易总金额5 I8 n% G& i1 [; n
local-reputation1 e0 Z/ Q8 |6 \) R J1 b$ @. j4 D
global-reputation% e$ e* }7 T( w4 r6 T
credibility
1 S' ^" p7 G6 H+ S3 ]& n. B4 K( B L;;评价可信度,每次交易后都需要更新
$ N) B% [6 O" l0 ~9 Z5 |credibility-all/ e% Z5 l, I' K5 p" 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; L% [3 R! ^; K9 b. `% z+ R1 D4 t' _
* Z" T6 u1 F' [3 h- V7 _7 @
;;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
9 r; n- k2 }3 G/ K2 M; Ucredibility-one
. D/ b1 i# E. j- V$ Q6 _) |( p6 A;;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( Y; V$ Y& N$ C9 Z' }% u
global-proportion
( {" `2 N. z8 b6 c& [7 h2 T% ]# rcustomer
& [ j+ S3 q4 u M/ x7 _customer-no+ f% F4 X. ~& u$ g: q
trust-ok
3 o9 W" ~* @, w, Otrade-record-one-len;;trade-record-one的长度
4 a+ {& h+ c) M8 L2 x]
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" n2 Q1 g$ B* f+ T) z4 o;;setup procedure
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to setup
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initialize-settings
" [2 l6 @' L6 B2 I( `, Y5 t
' A* @0 u5 K9 M) G8 H2 Gcrt people [setup-turtles]
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reset-timer
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poll-class
# ]. k" n8 V. \3 _
; W1 t- _" l$ w( m7 Lsetup-plots
; ~& w a4 n( i9 \
& ~- p0 v! m3 {+ J2 A" \do-plots. ]' j3 d" ?; @: a
end
7 Y+ ?( m& _- Z4 L+ K% ^3 l- _6 l4 B% w& l0 x5 E' j2 ?" D
to initialize-settings
6 e: ]9 i" m" I8 O
% h- ?. n. J- `9 b* J: Z7 Bset global-reputation-list []
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1 q: D4 X" z m1 N7 Z! {set credibility-list n-values people [0.5]
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set honest-service 0
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set unhonest-service 0% d& J8 l' s# m& ^3 ~0 A l
8 d2 N! m* l# I4 f0 pset oscillation 0
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set rand-dynamic 06 W& P) g2 _; g
end- Z: ~- i* ~- ^& k
& J, f5 P: _, c! i3 ]2 c1 s* hto setup-turtles " ^( h9 s; O3 f/ J. `- \, e. f- b/ V2 J
set shape "person"
7 l: I$ Y- n- t% L$ R Usetxy random-xcor random-ycor
7 @1 C7 x1 j$ i& Dset trade-record-one []; T+ `; m. ~+ X3 f' d5 ~
g! |2 X! G8 L8 P3 q. T, a7 [set trade-record-all n-values people [(list (? + 1) 0 0)]
* \$ K k+ X/ Y K$ Z6 M0 a3 q6 ?% P: [# J) [. z5 i: x" | B
set trade-record-current []- b8 H. i) N* U2 A) B
set credibility-receive []
, R" \! H) |- {% z a4 S# a# Z' R0 nset local-reputation 0.5
% I9 E" U/ u- Pset neighbor-total 03 a; s0 ?5 p: ~; D5 B- j
set trade-times-total 0
! k% T' U# t, S" \8 Uset trade-money-total 0
; |+ g$ J* ]5 P% @. |& ~8 L7 c& vset customer nobody6 E! u; {1 ~; m- a. ^# K3 J+ y) o; @
set credibility-all n-values people [creat-credibility]
% n: \! M) Y0 P w; eset credibility n-values people [-1]: \; c& O8 \! W- ?4 ~
get-color5 e, }. e9 k1 k$ F
( j k( C$ |. ], b$ @, y0 ^end B+ l. [% U" ^$ I2 H
8 `9 | [0 w- qto-report creat-credibility8 E( u7 s8 f& \. g4 W8 d
report n-values people [0.5]
3 M& Q2 `6 B, U" {' ~% [3 E8 @. cend* A* @( Y5 v) o- }) q
5 y [ @* T' T# K z8 l$ Lto setup-plots
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set xmax 307 i: _: E @ I! G, e
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set ymax 1.0! k- a- t' i% `, D7 d/ }
: S: t6 C- J2 k7 @7 iclear-all-plots
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setup-plot10 h) w: l9 F/ n/ r( e# \! }* o
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setup-plot2, \; c# q' F) y$ I8 n; {1 _2 D
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setup-plot37 j! t9 U" g7 l
end
! f5 ~2 [6 V2 I8 ]& p
9 A+ P8 v- h* b4 ?" y6 I! @9 L# m% f) Z. J;;run time procedures
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# D7 d9 @+ \0 G5 Fto go2 w) K/ R/ Y1 S8 L i
. ]1 a3 ~7 s) G% E& i* N: d# T( }
ask turtles [do-business]
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to do-business 1 o* s6 f; a- o* s/ B l$ l, x7 a* H
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: C8 w3 c3 v6 @! t+ irt random 360
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1 p" f* y/ q. Q( V' b V4 |fd 1
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- E) X* ]. U9 o( Y/ Nifelse(other turtles-here != nobody)[. f2 R7 |2 \0 W5 n
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set customer one-of other turtles-here
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;; set [customer] of customer myself F% [6 n: [2 N
+ [% B/ P0 v/ E! Oset [trade-record-one] of self item (([who] of customer) - 1)
0 }0 C' f& F. N" i7 u3 s8 S% t" y' ^& b$ O[trade-record-all]of self" P, J' l3 h+ A+ Z5 u2 C; ~
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
2 Q/ v$ y8 C+ z# F[trade-record-all]of customer
: @: A7 Z/ }! `) M ?
$ ?% v: T9 t; F7 S4 R d) [set [trade-record-one-len] of self length [trade-record-one] of self; Z0 D7 C$ f* Y( |( x
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set trade-record-current( list (timer) (random money-upper-limit))
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0 e G; e# m' j6 z7 C/ f+ Uask self [do-trust]4 N" N/ o" L# G9 @0 N( _
;;先求i对j的信任度% g }" g7 [) ]7 P* A5 i3 A
6 x) W. U/ J; @3 Kif ([trust-ok] of self)5 U8 \! ?: }( Z4 I; o& l1 K
;;根据i对j的信任度来决定是否与j进行交易[+ W5 q2 w4 F1 @# _* H1 a, V! K* D
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 y; `" @: J2 W
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[
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do-trade6 k! u8 [; f: o8 p/ o; j! c
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update-credibility-ijl
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update-credibility-list
! w j& ?$ z3 x* }
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update-global-reputation-list
s9 l& {6 t. q6 o T$ {: p3 e& Z8 a$ M" b- l; ~
poll-class# E6 {: D7 B5 x) {2 c H
# N6 D9 v6 F! o: I; v8 q1 X m* [
get-color, y1 N6 n; ?+ ?! m' K* v& h U
' f4 C! S( q, Q `. k* A" @]]5 y3 S- O* ? x, g* I
) F$ o6 L4 s. \ ~" l;;如果所得的信任度满足条件,则进行交易
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" S( ^( r9 u9 N% j6 g1 @1 P2 a( x, f[0 E! m+ m. @2 H* i9 D+ M
& s( y( W/ a5 T( s5 Lrt random 3606 l8 V6 l1 |/ |3 R+ q! [1 W
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fd 1# u# N$ `# d0 \: D2 P
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/ G* [0 }9 u# m$ s# e' z+ Nend
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+ }" |( W/ @# |, i8 @to do-trust 3 ~: g, @& [: T8 h
set trust-ok False, Q- Q! l% C* Q8 d9 j; u" ~
! S* z6 F7 }' z* l, x6 }+ @
. f+ C. u9 Y" O* ~let max-trade-times 00 B: c6 P5 P; d- w, z
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
" h! Z0 Z: d5 X8 v* p, ^; nlet max-trade-money 0
7 L( l8 Q" X% _" ]foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 y. t/ g. v' x& G& {
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))7 k9 U8 N9 c" d1 Y) `
* Y) W0 @5 X+ L3 l( h/ ]& W8 }- w
# m; k* d* ^. k, C" k2 z+ |; |5 lget-global-proportion* ~, O$ z, p% a% A0 @8 d1 A
let trust-value
8 {$ `2 V; k. [& Alocal-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 T% q T+ O1 Q! Pif(trust-value > trade-trust-value)
. v+ b0 t& L9 |# S9 r/ A2 A[set trust-ok true]
7 c/ [) W+ }5 ~) ?: Z8 Aend
6 m- E( j2 V8 |) N* Z& Y' F! R: A" b8 _. y7 ]
to get-global-proportion4 Z8 u6 A O$ W$ c
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 T! | p7 J* k[set global-proportion 0]
Q$ E+ z; {5 {[let i 0
5 f4 [* J+ D, }0 q# Y/ @let sum-money 0
. F* |5 ?& Y q& |, }8 pwhile[ i < people]6 M' G& j2 z% D. V
[8 K) M, t* R; U: s& O7 H
if( length (item i
7 ~, `; F. [0 U H[trade-record-all] of customer) > 3 )
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set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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% I R, ^! p8 T4 l- g4 Q; Nlet j 03 A+ Q5 x" Q! N
let note 0
8 U4 g0 N6 j, g' F4 jwhile[ j < people]9 N. b% I9 m8 {& N. h4 ~( _& T
[
6 r9 p- ` F! l0 j5 x+ Vif( length (item i
% ~0 @) E" {0 x! x6 T" d. o7 `3 P3 n[trade-record-all] of customer) > 3 )
/ g% X" @1 @4 l[: m1 M' E2 ]5 q# i
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)9 z, p% z0 R# _9 x4 ]6 g, x
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]% i) I" l) V! @7 N( r
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
0 f- F$ m$ R2 v- T- O8 p]9 |5 L6 v. g) M, k3 n0 t) y
]
0 Q1 g. \7 Z4 S- u0 b) C9 g& wset global-proportion note1 t& P% Z8 A0 y. m# S1 f: l: M
]
# I$ ~0 w' S: \% l2 v& c' Cend
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9 v1 b1 S! O5 s5 r" Uto do-trade+ ^( P% T1 s5 V) I6 q
;;这个过程实际上是给双方作出评价的过程! h4 `3 O1 N2 Q
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价4 y+ Y' T" H& p- n+ w0 V: n1 U$ O
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价5 y9 b( d* A2 t' E0 {; c/ j
set trade-record-current lput(timer) trade-record-current: T2 D* s1 R6 r- \8 P
;;评价时间
7 t; t$ \0 L1 R% B1 Eask myself [" ` j8 q: q9 b& \0 D5 _" i0 N! g
update-local-reputation
9 S9 m# J3 ?& b2 Hset trade-record-current lput([local-reputation] of myself) trade-record-current4 a: F( ?$ N* C8 X6 [$ c2 I i$ s
]! S8 z2 t. |6 }$ i, H4 @- F
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself0 z, z2 p; o1 W% [' D3 C* w. e
;;将此次交易的记录加入到trade-record-one中, y% `# L. x$ m& k5 O
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)5 @6 X) I8 t. Q. s3 E) x% F8 |
let note (item 2 trade-record-current )
* P; {, k5 J, h9 Wset trade-record-current
/ I% _9 G. O4 h1 a" q# A( l(replace-item 2 trade-record-current (item 3 trade-record-current))
8 S/ Q6 Y9 Y& J, |set trade-record-current
- f$ z/ }8 S$ F/ t(replace-item 3 trade-record-current note)
* }1 O2 O/ t. Q1 D6 H6 h7 T$ P3 e- U: `8 `; k$ l( l# v
7 ~0 W) W" x9 |) jask customer [
; D8 |* ~; Y/ X: i8 j- \! M7 cupdate-local-reputation# ~$ C4 _ b1 ^3 d
set trade-record-current. m( i5 h% C2 ~, c: Q
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 9 O1 r/ U3 E8 [+ F. z
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& L/ k. S+ s0 d/ q+ ]/ R
' C7 g: \6 g8 a7 F/ _* p% aset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
# w* _9 g' |' d: Q8 L$ J0 ?7 T;;将此次交易的记录加入到customer的trade-record-all中2 p+ Z- `% r, W
end! \# x) m$ o' z, f! K X8 F
/ s9 ?7 w5 S+ O, P) d$ }to update-local-reputation
0 O4 c- C$ i7 }1 w5 C- s' a! gset [trade-record-one-len] of myself length [trade-record-one] of myself6 E& ~7 W. N" k! T2 {4 G
% V6 `! m+ P# F& ?- L, Q" l% E: x
2 o7 d5 G+ `/ t;;if [trade-record-one-len] of myself > 3
1 t. t1 J- O+ w6 _update-neighbor-total3 g5 E0 D$ ]1 d! P
;;更新邻居节点的数目,在此进行( d2 p( _1 z/ J9 Q7 j
let i 3! X! [: M3 a; }# i$ ^: m( P
let sum-time 0, I) a4 q; ?7 H( D/ A" E1 j
while[i < [trade-record-one-len] of myself]
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3 M; W! ]) e# v4 `, V, Nset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
, Y" t) t( B" Cset i3 L7 }3 f/ G+ [! |, ]
( i + 1)9 n' ]' L, ?, ?( O
]
; u5 x' [) b. |7 i* Wlet j 3# S! k8 g+ _4 f! Z1 f' I3 m
let sum-money 0( c5 X1 ]0 I( m6 T! z5 C) w
while[j < [trade-record-one-len] of myself]9 r9 A& F6 m+ s4 H
[) m6 w% d2 b" E3 I: K! E& C
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 T$ W0 d. l. p p$ |$ F
set j
: o6 U! P! L5 h6 ^+ `( j + 1) a6 v. D) U7 w p) S4 T) e7 U
]
: x. S3 h4 p, Z! _* q- f Blet k 3
; X `- e' I+ \5 U- i- n( {let power 0; X4 r- t% ?* R: X+ _
let local 00 ] _. `2 I- @& e& s- ]
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)
$ n( t/ N+ N, F5 I9 nset k (k + 1)" ]7 }4 X6 u0 j' { ]
]4 f1 D9 w8 C2 B# [
set [local-reputation] of myself (local). c# I' I' W# k8 K4 R+ y$ D
end
% Y: J8 f( N& `8 J( b! n" f
: [" }/ S5 h _to update-neighbor-total
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5 C6 n) z8 f5 c+ jif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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1 B9 p" l0 c% Z1 h& N: E# Fend
: C( I1 l* g( l M! n! ^' y8 @8 N6 s0 s4 O; `7 E5 [% R
to update-credibility-ijl
( J. o1 Z; _' N, [' a1 i& C+ E$ ^& `. p9 [7 u1 H
;;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 r8 ^: ~% {2 g. ?2 L- ~9 ~/ {( Xlet l 0
' ?4 u+ ~' s. L; C _& T. Cwhile[ l < people ]
- t! k" D0 |* m: A S" I/ Z/ [ 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! F3 Z9 @- z+ t4 a; i
[1 q9 l' Q& u$ V, \
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)$ l" r3 i6 F- f2 S* V( U( n6 V
if (trade-record-one-j-l-len > 3)
6 i/ P# x2 x" T8 h[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-one9 v, T8 e9 \% Z" n- Q+ u
let i 3
, O7 V$ m n+ T+ H& z slet sum-time 0: \1 y- m ^/ ]6 r/ M1 b. P; y
while[i < trade-record-one-len]
$ b, A! h" }% I[
& M! m; v& P+ `0 w8 e+ T# H* L) ?set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )2 c* _/ |, ]+ d |( f; B7 _
set i) M! ?" Y) Q' O7 }$ t3 w4 n
( i + 1)
4 J* y5 |# {, K2 j1 i# }]3 Q! n9 A* e s1 ^" w, l! [
let credibility-i-j-l 0
3 g% ]1 s9 n; v;;i评价(j对jl的评价)
6 b) Y, S3 e& L; h7 G; |* Alet j 3% [9 X( R2 N i
let k 4. F% p% _* [* j/ g, B$ C
while[j < trade-record-one-len]# `8 x- F0 ?$ f0 x" p6 j, C
[
$ Q1 J& B: b" J4 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 R, a& W# l# y- e% M* d* ?
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)8 ]- L6 G% ?: g+ ]4 }; f0 }
set j: E2 U: w' X d
( j + 1)8 }- u) a1 R" p7 `4 D2 f5 p
]
0 W5 v: q2 r& V7 @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 ))
+ O7 d! C% W% H; U) S' U \- C, z. @' u9 F) U. v
7 n5 y u$ j$ J" G7 j8 h
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)): Y( S1 r, G1 _8 Y+ E4 D8 G2 |
;;及时更新i对l的评价质量的评价
- f6 Q7 D5 j9 d! B" kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]: d U. g; c% x& Q7 S. V
set l (l + 1)9 F4 p& Y% |" B5 {; J+ n% A( i
]! c5 A) I5 j7 ?! o9 L
end" a1 Y5 O: O$ n; C# j/ x5 ]4 L0 o/ Q
* X" E; ]( ~% F( Mto update-credibility-list# v6 d2 O' M3 N5 I
let i 0
8 L& `' z; I& Bwhile[i < people]! u8 E! D/ s9 F# x+ ^0 v
[
4 M2 u7 l/ H. Blet j 08 Q1 [+ B" Q( y/ X5 ]9 e; P
let note 0
0 g3 o; V4 P$ N. rlet k 0% b% t4 M$ e! @) x4 o" @
;;计作出过评价的邻居节点的数目
1 O- G/ N" m0 c" Lwhile[j < people]1 }/ [9 v& Q8 Y% J" z$ N
[
! @' e8 t* |1 r/ a7 Z2 w, tif (item j( [credibility] of turtle (i + 1)) != -1)
9 c9 I/ g% j/ P$ K8 f;;判断是否给本turtle的评价质量做出过评价的节点7 z3 D D9 T- h7 y' H6 t& c6 u. u
[set note (note + item j ([credibility]of turtle (i + 1)))( M7 O1 L% b8 {; y3 @( A! n
;;*(exp (-(people - 2)))/(people - 2))]
/ S- [" S( M2 L( ?' n- qset k (k + 1)8 a# z2 ~( e* k, o5 H0 Z5 P0 r
]4 }( Z4 Z" M! j# A* G
set j (j + 1)3 N! f2 z+ N8 P; }6 |5 J7 s$ O
]
3 u4 A# }! a: O8 Y4 M$ h% lset note (note *(exp (- (1 / k)))/ k)
9 z4 |/ k1 M8 c5 S' @5 {set credibility-list (replace-item i credibility-list note)- ?1 d' D; p3 Q
set i (i + 1)
: }2 S' \! ^* X6 u6 N]
+ D# g% Y) V1 Uend* O5 V2 ]& e; \
7 V- r2 n9 q0 ?
to update-global-reputation-list
* u4 T( e E' B2 |let j 0; l; k) p0 E& F' W
while[j < people]5 i. J8 j* F- d2 S5 v6 b2 r7 D
[% @$ C: u! E/ i0 h
let new 0
: |5 {; C0 I. Q) E' ]/ J2 V;;暂存新的一个全局声誉
5 W5 Q2 s* m9 N8 ?let i 0
( H u1 R7 e9 n$ H) `let sum-money 0, s3 M/ h! F5 i' J, x+ a
let credibility-money 06 z; Y- q- X" O$ g9 ?* b! ]
while [i < people]- o9 i. w+ j/ u0 _
[/ c- _3 g' U) w% ]
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))4 S8 g1 w v' e
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
3 R- Y$ k4 f5 i, o' {# Aset i (i + 1)
% K, A$ W& N9 u9 J& k]
; Y ^6 \$ Z0 ?, @4 A2 c$ blet k 0
6 D, |5 H2 J |. `. _1 {( Qlet new1 0! V) e) V8 A: m, z
while [k < people]
0 A! p- i V: F3 n6 ^' G[
# {' N; N- i. R3 ]4 hset 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)( k3 Q. s- B' \, r2 s, ], |
set k (k + 1)
% H9 d. ]3 Z* c; ]4 I]
3 j& r% t% R+ _. w. u0 b& C1 ^set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
& Y" H7 J) a# I9 v J' h2 L0 ~" xset global-reputation-list (replace-item j global-reputation-list new)
& C! b) @0 Y/ \3 e% Wset j (j + 1)
; s. g% I% V# I" i w2 z]
3 O1 L- v; N& K9 _" s. gend2 i) B& z! t6 L' ]! K; t( y6 K; G
- ]' o3 J+ O! R
- X1 X3 J2 ^* i
- n( A8 k3 P; Y0 eto get-color) u6 q$ m* M6 K7 i; t
5 J" P/ e3 L5 f" z6 `set color blue
, t) j# J1 f: J/ q( H) Xend" m+ A9 g! }9 f3 X5 h
R2 I# h" V3 h
to poll-class
+ O6 S* J1 @, L/ l( Eend! \0 ?6 M2 Z. t; z j
: f# d; _1 w r& [' U" }# c
to setup-plot10 _( A% ~+ u) V4 M. c5 ^. `" H" A
% F# _: n; O7 d! pset-current-plot "Trends-of-Local-reputation"* W) h! x* q1 G5 F& A8 B
. h t3 C' M9 y6 X' M/ ?set-plot-x-range 0 xmax
) ]0 F( I( u' ^6 V6 M
; U& l* e1 s+ q( z5 zset-plot-y-range 0.0 ymax
& _* c1 V3 X( |) K2 x5 a% X; wend
& G( M! U5 ?; g1 c# V- r' L8 }
to setup-plot2
) u" W- }9 {$ {0 |" l }7 B! N3 h# a* `6 R/ P! {
set-current-plot "Trends-of-global-reputation"' e& O, e! N* D: n6 J& I
5 ]: H8 |9 t+ R5 f: v* b
set-plot-x-range 0 xmax6 K0 f4 P! m4 c, F0 z9 }& e' q( e* [
5 A C. h& ]+ D& G6 T& bset-plot-y-range 0.0 ymax% m1 s; _. t8 j/ _
end
8 P( e" v6 F8 m6 C+ m0 z, S& X% p
7 T8 v( ^1 C! s. U' Gto setup-plot3
' E* M) ^. H. N" c) j: {, X! q6 d# ~; e# a6 b" E# O9 I% z5 P: \
set-current-plot "Trends-of-credibility". N4 `6 g) w/ Q1 Y$ A
/ X7 p) S' i0 P: T: v/ F' ?
set-plot-x-range 0 xmax' X. r8 X2 `9 a9 \
: \: L9 j9 r$ u5 u1 y/ b$ {
set-plot-y-range 0.0 ymax
1 b! } A) K6 hend3 W4 I; R: W ^3 h$ S
: T( a8 V5 v: y% ?* o
to do-plots
% T5 l3 _: v) \ Y. |set-current-plot "Trends-of-Local-reputation"0 }$ ]% {4 b- T
set-current-plot-pen "Honest service"# o2 ~# E* b6 @5 C* ?. D. }1 a
end1 G/ D* F/ O# h0 s
* h: A) f5 n% m/ y! h[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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