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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
' }# C4 n5 B' H* kglobals[: q7 V- U q8 v4 z$ V& p! b
xmax
9 n5 L5 k1 H$ _ y- lymax, s! i2 q: p+ y7 _$ c
global-reputation-list+ B h3 O% b, l& m
( [/ C# ~$ g. V% N;;每一个turtle的全局声誉都存在此LIST中
4 y: L, R! }( R" t6 D) Vcredibility-list3 {% S8 J& _, H9 X: n& O8 b. T
;;每一个turtle的评价可信度
2 _$ `1 o) T8 u9 k/ ^honest-service. f: [8 H/ p6 w: D7 C
unhonest-service
3 d* h; }" n0 C8 Qoscillation
$ h. [: R! c; trand-dynamic2 t9 b2 v! T5 _% ]
]9 y4 } |& d1 Q! t g
5 L: D/ b* T* b3 q, ^/ `) T1 ^: Rturtles-own[
t$ T. _$ u @ ^ Xtrade-record-all) P& Y ^% {5 N3 p0 H f
;;a list of lists,由trade-record-one组成
|* K/ `! q" h/ X- Ttrade-record-one
$ \7 D4 z2 Q4 Z;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
; o( p* V- O$ E9 c8 U
( ~! k, o) U$ r( O$ u;;[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]]
B9 ? o- W$ X" l/ D- Rtrade-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]4 c4 ^' K+ V4 G
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 R; e# D4 X/ Q8 X- ]9 X
neighbor-total
- a1 G7 Q/ G, E" Y;;记录该turtle的邻居节点的数目/ p# `5 P9 ^3 m: K& N L+ ^" z
trade-time
; A# P* ^6 }6 N) \;;当前发生交易的turtle的交易时间
- C2 H$ i3 r/ R) f/ h. b* xappraise-give
( v/ w3 b( J; A8 G' X9 T;;当前发生交易时给出的评价0 ~& s+ [5 b" F0 I7 I S% C
appraise-receive2 |. C! x. J( O3 D
;;当前发生交易时收到的评价% d5 P: }6 _* H' X2 B
appraise-time L+ R; ], ^; ]' z% R; d; ~' M
;;当前发生交易时的评价时间
6 n9 _! \* L: f4 w$ a' w; tlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉' ]4 P5 I+ U. z% Y: \
trade-times-total
& l+ S! o/ e, l;;与当前turtle的交易总次数
9 V8 o, b1 r: Y; Ztrade-money-total
6 _2 q. r9 w. O: O4 };;与当前turtle的交易总金额& x0 i; ~8 t- B3 q
local-reputation8 K6 K4 i' p1 Q5 ^3 Y- _
global-reputation; K( P* J2 k! i& i1 @+ q& W* R% ^( k
credibility
3 {" P8 e# S, b j;;评价可信度,每次交易后都需要更新6 j" I" `+ U# y. @* S# d ^
credibility-all) _0 ~2 r% @9 [, ^
;;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5 g* b5 n9 n( U9 s
5 w/ W# I$ G6 P" q$ j5 e7 O" i+ ]3 n5 X
;;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
( i7 H E: W2 c+ g6 Gcredibility-one( b( t* a+ |3 i5 z6 y
;;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 ?3 l/ H# I" E5 g6 }global-proportion
* ?' y: E2 j& Jcustomer2 I% C7 c2 }/ e: a9 Q
customer-no
* d' p5 o& d" Atrust-ok
3 [3 G& Z V1 gtrade-record-one-len;;trade-record-one的长度
6 F& c/ y5 }8 f4 ]2 Q1 L]. Z* L, E1 c2 u: ^( W" D9 B* c
* ~( U% P! h: V% r5 f5 m' Q;;setup procedure
1 i* d2 p ]1 ~6 q r) a6 ^6 }
7 v$ H! ^; w i$ r; M N% e1 Bto setup
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ca
& f8 D/ J" Q5 u- z# t
. B: Z2 q' |' ?8 N$ G( jinitialize-settings" C4 B! Y( T# [: j- G! v
1 Z1 T% A. c) N9 {7 T/ k, k% e0 a
crt people [setup-turtles]) U. b# R5 X7 D% e' ^' n
[ P/ [% d! \/ {# J' ^4 creset-timer
7 Y& V9 \# I, j
# Y; i' z- n- h; x# @poll-class
/ D6 r. ?5 u+ Q( T3 ~
6 A; \, l% A5 U( n* Q, d& A" [setup-plots
" j$ }2 q( s1 ]- h% F0 R( ]' k
4 l3 g" s+ A' f {2 Z: \' mdo-plots
8 o# j8 j A$ W( z. X$ uend
' g( A4 L' z( v) `* X8 @5 |2 e
, t3 i' A |6 c5 }, g+ rto initialize-settings/ G$ F$ j8 i/ w/ j l, ]7 \
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set global-reputation-list []" p. ?- ^7 g8 z: E- Y3 t
" U. R {$ B, c: C0 F# J/ ^
set credibility-list n-values people [0.5]1 \* |! r9 x, X9 C
O2 B" Q m3 L) z/ vset honest-service 0
9 ^. b- h6 a) M) B& [7 p9 m& e/ G, {4 X4 n+ D* @
set unhonest-service 06 Z% [" q- h2 n# ~. {( G# ]
8 @ E2 }/ i# C
set oscillation 0: K' \. L7 e; S1 G2 `% V
& N0 N( h/ U. w5 eset rand-dynamic 05 K! _3 m- h; F" z4 }2 b$ N0 y
end6 C. Y& h1 k% f% C! o! h
. z3 v/ Y% T- H, y; B) z; Fto setup-turtles
6 ~/ b9 r9 U f1 T9 Cset shape "person"
; ]9 O$ u: w* M+ z& G" @: Usetxy random-xcor random-ycor# T+ p# s t* o0 M1 u
set trade-record-one []( _" p, w/ {- f/ T# _1 V$ _
7 {( [6 C4 j" J! |set trade-record-all n-values people [(list (? + 1) 0 0)]
8 U8 ?, T9 H, o. d, v# y5 l! E8 l* T; ^+ z( y" E5 ~5 E. h
set trade-record-current []) E- D Y% n G$ o
set credibility-receive []
/ @/ ~+ P0 u2 }$ T; vset local-reputation 0.55 i- O- s6 ]$ j' o
set neighbor-total 0# `% d( E" E% g' C `4 R! |3 k1 h
set trade-times-total 0
- G! L; X, U, i5 G* ]" K8 Xset trade-money-total 0
% g+ f" K2 H r! m! `1 L+ ?set customer nobody( U% }' ^, S2 p
set credibility-all n-values people [creat-credibility]+ U0 Z+ u7 I) x* e
set credibility n-values people [-1]* A3 \0 M1 A2 V, `4 ^, b
get-color& B& o) f' _7 S7 ^; k/ ~% ~
- L6 [) W! I# _: Y; wend
0 T- m" ]) I/ h% {; l5 l7 G% Q; P2 E1 Y2 h/ _
to-report creat-credibility
) Q. |: Q q- ]report n-values people [0.5]2 I: H2 _4 n0 G4 |) C6 ~
end
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to setup-plots
- `: r' ~% C$ W' X7 N& I' Z9 |5 F& N5 Q3 k1 [/ N4 V1 s1 y3 l
set xmax 30
" Z7 x8 A0 V! Q6 h1 v% n$ \- { O1 P* c ~
set ymax 1.0
$ w; q; ~$ ]2 U( w/ ?
; t, g4 k$ ~. _; L5 k$ X$ R4 W6 z: \clear-all-plots* r1 E1 f- h- A8 v' N
' u: y/ i8 @/ B1 W/ n1 m3 N$ A# s
setup-plot1
$ F# R' F0 f# N& X9 {1 P# D! B S$ c7 g: p" E ]
setup-plot2
+ j& F: G" p+ m2 [# {! p8 p& Y+ w! J5 e% v% i O$ k
setup-plot3
9 G' H! V m+ s0 [2 Pend
. b+ A4 j8 s* o; b% \6 {( z
9 l- z& }% P; b0 h: [;;run time procedures8 Y! |! r' u' c$ K2 z
* }" L* v" @% W" Q: sto go
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ask turtles [do-business]( h$ Q/ Y" g1 a5 D8 z p8 c
end! }; }, A4 `* F/ y
6 e) f ^7 F) O; Y1 o$ I/ o5 Hto do-business
6 A8 _8 E; H" e, A- t' X; |- h$ H" Y! n4 Y! `- q
* _. B3 c }: t& w, g/ art random 3605 I8 S. l- V5 _1 [" p& M- ]$ h
% v/ Y1 A. N: |: w
fd 1
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8 r3 i/ t% @4 g! s, Gifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here! T+ D; |5 o! F
+ W# n* L6 ^, c2 S; L* a
;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
. d* N! S* r' I. n[trade-record-all]of self
5 ]$ j1 z5 u8 [2 W1 g;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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" T% a g9 Q2 i) jset [trade-record-one] of customer item (([who] of self) - 1)
( C2 G; t4 i0 Z+ ]" h: R, ]. k[trade-record-all]of customer Q4 ? S( [* e; E
2 Z; J% j. [5 k4 q" S
set [trade-record-one-len] of self length [trade-record-one] of self# `, Z) @) o- x; [" ~
! e. f2 l8 t, \" D6 r1 s$ `set trade-record-current( list (timer) (random money-upper-limit))
) Q$ @1 u; P- Q6 K5 h3 Q3 `
7 y* a9 h+ v; y. W! dask self [do-trust]
; F5 S m+ ~3 }' K/ n' ~9 z$ p0 P;;先求i对j的信任度9 y: _. u! C4 c4 f" H8 J O
2 e/ B# c1 p4 p( Y8 W6 d& F! K
if ([trust-ok] of self)2 S! \5 }; X& ~4 j5 G( G1 i* t# V
;;根据i对j的信任度来决定是否与j进行交易[
1 Z3 H$ ~* b8 s; Y1 oask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
0 a1 s2 N$ x% o* m3 ^& R9 V) S. F G6 [
[1 ]7 w% F% G% a) L% X. P
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do-trade* v0 a: K0 X/ o8 I; I
: X! ^9 V" t, |2 d; G. ]2 l6 v: j
update-credibility-ijl
+ I1 h9 D# t6 @% o
2 V# S0 X$ X) H# n o7 U, iupdate-credibility-list
9 x# k7 z$ e/ B$ S
3 q% z) C3 @4 h3 R$ F; }- l4 k; R, l
1 q# T0 w0 E, A/ `9 I1 v& vupdate-global-reputation-list& I. I( d* m8 N
& b6 {. |4 |& @, L! h! Q
poll-class9 {* D' g7 }9 O- z9 o
4 T3 P+ f3 H5 B, R$ }/ k7 x+ }
get-color
4 Y5 y( w3 M4 ]3 j3 N9 r" I+ V( u4 F2 R1 P1 ^. S" F
]]3 Y' i# ]2 x1 w! \
8 l* v. ?8 N; h0 L2 n9 M( H;;如果所得的信任度满足条件,则进行交易1 u( l! p% ?7 W$ M4 D
7 H+ L6 b v3 A4 p: m: @: |[
* Q/ F+ r! @* A4 S+ s# A5 ~4 d
: W; `1 I% o* ?; x% N# Irt random 360
8 o, T1 Y: i( q2 u9 x9 z S7 s' s6 G% Z. |3 }" u
fd 1
' k7 Z: c; h0 t3 E2 n* T ]# r
. c3 f- k5 F1 \. I, T% R]
- M3 i4 E! t4 n7 @' q8 I- K
2 S9 t% n4 z7 ?) D0 c: h3 \( Nend o* ~1 e$ v. U0 {8 D- l
2 S% ? C* |* s" q3 g
to do-trust 2 J2 u- V9 l. n W. c
set trust-ok False1 C# m9 y( w$ }: ]7 d6 {/ G
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( B! _* U5 X7 ^& f: f' ^/ qlet max-trade-times 0% Y0 ^; J3 H3 K+ e" u& w# M- U
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( \' D! D) S5 @& g& g0 R/ F
let max-trade-money 0( o8 m @' K3 I' t2 c
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 \* u6 ~( J. x$ @( q } [let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))/ [* y6 W6 B" l2 d; |( y
9 D5 k* g& w( {" W! ~, j0 o
7 F9 C" q3 u: }: _5 s0 C
get-global-proportion& ?/ f: |# f3 V% f
let trust-value W: k; y. J6 m- C
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)
. n, b- T8 g0 A+ Y! |7 hif(trust-value > trade-trust-value)2 f) c! N8 ~" F0 [ B7 F5 B& S
[set trust-ok true]: t: w$ n/ p+ X6 K9 M% a
end# C# z) H1 q, V
/ l! Z& x3 O! u U8 h2 z: L
to get-global-proportion9 I$ \5 R* t& p* ^% O5 l
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
' _- {; W' Q( p: ~/ d2 ]8 R[set global-proportion 0]
- x- k( [& W9 F[let i 0: d. A0 V7 |" ]; F
let sum-money 0. V7 O3 }1 L; `+ C, Y) ^; h; z
while[ i < people]0 i7 k/ u, j/ z3 L
[6 Y8 C) I5 j& H6 |
if( length (item i& A) q" q% t8 @. A2 r
[trade-record-all] of customer) > 3 )
& H. m6 _ {' d- \+ F) e# }1 t[4 y# g r4 Q4 |$ Q0 C! ^
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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]
$ j7 `. q1 F! p- v# O0 B9 clet j 0# a' e, G( [9 h4 t: r9 G" }/ S. ?* z
let note 0
S3 E' k; I; v: V$ @7 [5 ^while[ j < people] z2 f( _& L9 S7 ^, v3 T% u
[4 B% E# J- B% c. I3 t
if( length (item i
P8 } e! s1 ]& m8 X1 @. g4 P[trade-record-all] of customer) > 3 )
, x' R+ }. B, O6 z2 }7 D[
1 ?0 V# ] q/ U9 s1 Aifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* H3 ]8 d9 o# ]7 {0 l[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]# u% o& j8 W6 W+ Q3 z' q
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]9 d. k8 E6 [/ @
]* m, B3 u6 ?6 i; y
], q9 d/ v0 E8 K9 m. J
set global-proportion note9 O9 T# B* c7 D
]% ^7 W7 i! @# ~, j0 y/ _
end# ^) M# s* e! R& ~
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to do-trade
/ K) t- J8 b9 B/ ?;;这个过程实际上是给双方作出评价的过程& h5 l0 x- N2 z+ D0 i: T
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" U$ n$ Z9 Q p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
' S( f4 i F5 _' Q# q8 Fset trade-record-current lput(timer) trade-record-current/ u: [ }8 a+ {2 R6 A, V" C' x
;;评价时间 z5 j: Y" [/ w5 F4 n% b
ask myself [; d$ M2 A4 n1 R1 _+ _' Z8 m/ N
update-local-reputation6 H& K5 e) k+ ]' s: L
set trade-record-current lput([local-reputation] of myself) trade-record-current
! Q$ \) ^8 z3 u# U4 p* L+ \]
1 \/ J2 ~" D" x" eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself( ~4 u+ X3 s+ B' j& l
;;将此次交易的记录加入到trade-record-one中
, J m: h7 i( s: G% z& Mset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ ~" q3 p% |% L- u2 `! O
let note (item 2 trade-record-current )' H8 K, n9 `. j
set trade-record-current
8 P- p( m; u h6 B2 U! E(replace-item 2 trade-record-current (item 3 trade-record-current))6 \$ P; z7 B3 o/ I- R
set trade-record-current F$ ?2 g6 S( a. c" a' j! A
(replace-item 3 trade-record-current note)
c2 R6 L8 W, L
2 T3 |7 V. d' y' `. X7 _" @0 E" T
ask customer [) l& y. N. {2 k) Z' u( D
update-local-reputation
' d1 B$ O9 G! s+ Hset trade-record-current* \1 m2 w# F2 k9 T' r$ I. @
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) : [' j) v; f8 D: P
]
* V- R' q7 P6 n9 b) S
0 ^9 }" `1 _& ^' ~3 E& M) Q' k3 l6 s- |2 W {9 j% j5 h# k
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer0 C7 ?0 Z, R- j! U
& @ K* l0 r* ]- }5 T0 k. r
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))6 o8 f* c9 Z) b$ p/ M( H/ A4 F$ o
;;将此次交易的记录加入到customer的trade-record-all中" ?2 C- [$ l* P8 k: P3 L9 E
end- ?' D( V9 K( f. B' @ y
6 P. ^# d9 G1 w7 b' h( J8 o; s
to update-local-reputation
9 k/ S" F+ v+ S- W8 y/ _% K. c9 ^set [trade-record-one-len] of myself length [trade-record-one] of myself+ |+ N) j, [$ P6 E/ _( S
- d) r$ r- ~4 t7 k9 [4 u/ c7 u; \. V7 U
;;if [trade-record-one-len] of myself > 3
0 \7 R% F w7 I( B- M: L& g1 M8 Fupdate-neighbor-total5 y4 J0 o! N/ K! Q8 B
;;更新邻居节点的数目,在此进行
+ D7 P+ d8 ]) |" xlet i 3 `+ @0 P* {' ~5 W3 L' ?
let sum-time 0. ^" @. v9 c! y. T% C j% ^
while[i < [trade-record-one-len] of myself]
3 ^/ k/ a/ w+ w9 r: ^. Y[6 b6 Y: f# W9 e; `$ M4 O) B" V' @
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
7 v( [/ e# G; E. x) t7 {set i0 t8 \9 q, R( V( {9 U7 h ]0 s# ?4 n
( i + 1)6 O9 \+ P' x5 k
]# ~" C- `$ W- o- g: _
let j 3" v% w2 P) v, q H+ P
let sum-money 09 T/ U) Z3 f" y2 |* A6 M! Y% A3 H
while[j < [trade-record-one-len] of myself]. Q; L0 q n0 }" p
[. a; ?* {, D0 C& Z
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 e7 |3 d1 W& p4 A r
set j5 f: R9 r& Y' s8 Y" @1 v1 @
( j + 1)" c% d" j$ p7 A) E
], W) `# d' \; @ R" k9 Y( c& f" D
let k 3
& v2 O2 d8 F! z8 G2 g# H& N% Rlet power 03 n3 e( }" {2 @8 Q$ {7 ~
let local 0
! {5 M7 a2 V* Y+ C: Q7 ^& Vwhile [k <[trade-record-one-len] of myself]
2 H& w( S' W1 z6 ?. u* F9 h& G[) R% P7 A+ b7 s
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)
. B4 |! H. `/ W6 B9 pset k (k + 1)
; K9 g+ \ g% k# y( l( O$ h7 o]
3 f; D# L. V9 u- W9 { p) u4 Fset [local-reputation] of myself (local)
$ q) |6 X, R' j Q% x. Z( c7 f; tend
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to update-neighbor-total! R; t6 W$ w2 r! u6 v
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]: B: O$ q5 I% F3 D1 A
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$ l7 |5 [ d: I$ p1 G' fend
7 ~8 g: l8 m! j: N8 S
, o3 o& u; Q$ Uto update-credibility-ijl
, F7 k& q1 f3 D( d4 I% R( |# v: X4 F9 F
;;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。% v% z1 Z6 B/ @. e9 S( G9 M
let l 0& W J' J9 @* C5 @6 N9 f4 \, Q
while[ l < people ]
9 a4 w8 c6 g: _9 G( \# [; 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
7 Y" y8 ?1 w7 {[* Q- V/ D% v& k4 y( L' o9 o
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
: G; \/ L" Z4 r( ~! v0 kif (trade-record-one-j-l-len > 3)4 E. Z$ F+ ~% ]) r/ z" {
[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
P2 ?4 |8 _% R* b! Rlet i 3
2 `4 u2 b# ]% c. V/ L# y' flet sum-time 0" D9 V+ s# W: N2 q; f& E1 H. a! P
while[i < trade-record-one-len]
- w7 R' c. f* D8 S q0 N[0 ~. r# b! ]5 f& T! A
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 w* K( i. [/ u* N+ \
set i5 O6 `1 _/ W2 ?' g; V( }
( i + 1)' \# ?$ @; L3 O$ g
]
# ~! G7 O- P7 E" z1 g+ f/ @, flet credibility-i-j-l 0' q$ I% n5 q! r4 t
;;i评价(j对jl的评价)
# N. A6 G4 a" A) y7 \( u' _0 Tlet j 3
; x* l. m$ d4 `0 R2 Elet k 4
$ v8 {; P b/ s. E; L9 W) ^/ }- W# {while[j < trade-record-one-len]. k) b5 Y) q4 q7 S% m1 O0 j) R
[8 d7 G% y3 Z+ P% ]4 {+ J
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" \6 L2 @; X" K
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)6 \4 V5 q* \ h% o6 K
set j" M% Z9 ?% Q& V3 _6 c9 o5 Q: Q# E
( j + 1)
; _. X! ]6 t& x$ k]
6 O9 g. d# T8 aset [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 ))% ]* B5 e3 G9 Z
. y) d: C& S W$ c/ y5 e3 h |% r+ {/ Q$ q( g- i. m( F% H
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ J/ [* H/ `( D1 G. J;;及时更新i对l的评价质量的评价
/ k0 u3 X1 u, f) }( zset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 L: ^8 d7 L2 oset l (l + 1). _5 L: y2 A& a$ v7 F6 D% Q
]$ _4 c* o% A x+ Y0 C' U9 d8 l3 x
end0 Y0 k) e* ~: q ^ n8 c% F2 D
7 e' i( D3 ^/ J3 [8 zto update-credibility-list6 B; v1 q$ C( h; ^% A; w* @: I7 D
let i 0
5 V1 S5 G4 }0 P# s# |9 ~while[i < people]
4 G3 ^* ?2 n8 X- `; d; Y[
, S& r6 m; z5 ]. w* Y6 m) ylet j 0
+ H6 l; O3 Y! x6 Y2 slet note 0
2 o- y9 ]: x4 P6 h4 H) Xlet k 0
: y/ M$ N6 I5 ?! Y! \2 |;;计作出过评价的邻居节点的数目
3 L# M" o% W4 awhile[j < people]; m d) N1 y. l& y
[$ Y, s7 a$ ^/ f
if (item j( [credibility] of turtle (i + 1)) != -1)
2 G+ {' u* ~1 F T4 f;;判断是否给本turtle的评价质量做出过评价的节点1 t N. H( T1 q2 n% X L
[set note (note + item j ([credibility]of turtle (i + 1))) U- \3 O t8 u! z" U. L c
;;*(exp (-(people - 2)))/(people - 2))]
" S/ G, i1 \: f4 |: i2 ]' H# ?set k (k + 1)0 _" N4 ?; R% ~1 J
] ?( c. }+ v8 |, i$ @/ ?
set j (j + 1)
7 X" ]: m8 b" d8 A( q% e2 [( J]# V& x3 C5 {# F, s- N1 p' M
set note (note *(exp (- (1 / k)))/ k)
2 @& V/ X: j; z5 s( |! s, H' Qset credibility-list (replace-item i credibility-list note)4 O/ l' d, r4 m# v y; Q
set i (i + 1)5 t( J/ I1 a6 H" U9 S4 H9 d
]) o' K% O- h1 j/ c" U" H/ B
end
# Y4 w# x0 H1 u# C7 b& g; ]$ Q$ `+ N
* X" M0 X, Z% O; e, {to update-global-reputation-list- m1 Q' _/ r% N+ C! ] ^" p
let j 0) d+ e3 F( e* P) H
while[j < people]8 A- D7 a4 e! F/ {+ C" {4 C
[
! F. N( O* `0 S% u9 T& y. y) V0 {let new 0
! P) k5 S" _- j$ o# z;;暂存新的一个全局声誉
. B; _& P7 \; c1 n8 N; W" alet i 0
( G: y/ N) l: D8 olet sum-money 08 K+ j# V8 J3 q0 l8 Z5 C1 n
let credibility-money 0- Z( z/ u$ ~! T# _/ b" u$ E
while [i < people]% o- F* y# X/ J
[
9 Z O7 J; x7 u. E6 rset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))* J$ c' ]! X4 O$ k3 t
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)), P* g6 C2 ~% h- D- U. \5 G4 B: j
set i (i + 1)
& l5 W0 }# n( q' x]3 N" q; J6 m1 b
let k 00 U2 ~) E9 w* g, O( R! o" f4 ^$ ^
let new1 0# M& [# m4 U- v
while [k < people]: t# @& O/ S! ^
[
' W# r1 e4 {- h _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)
3 R& E9 ~/ h- Q) Vset k (k + 1)
& G! D% t3 k% w, y0 r]# }0 E1 N2 t0 N C( o) q5 t
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % \) p' i, W/ [
set global-reputation-list (replace-item j global-reputation-list new)5 L6 g9 [2 O" J/ `5 s* s7 B5 \6 o
set j (j + 1)2 Q2 D# T# Q5 \1 k* L
]5 _% c8 J, V/ A4 H
end6 t0 \) c9 ~" ^- S; Q; E( j" {7 u9 i
* S% J3 K4 e6 D2 e! V5 M2 o( _- `
6 B- L' o' D- f7 E- J% R' V1 v4 i: h/ ^
to get-color
! S7 N6 H* L) a' A/ A
* h' h1 M" i3 p! d; Aset color blue
; ~2 m/ ^3 n; j( Mend' M1 T. C" }: F$ N& E! \
( y/ `! Z3 |8 f. n3 Yto poll-class
/ |, X2 [) k6 ?% L) jend- R2 q9 v; r. Z6 Y9 D5 u2 { T& J
) i4 R. j! R ?, D! l8 p
to setup-plot1
4 m9 q7 R' |5 z, Y' [1 s
, \: f) `0 S- ~1 `& iset-current-plot "Trends-of-Local-reputation"& `: N- {7 r1 K' p; S
9 v% ?' [& H2 |& X. Z/ _set-plot-x-range 0 xmax& ~- y# ~; C% o
4 U: U) C1 J( h: U3 d
set-plot-y-range 0.0 ymax
2 A! J- r, \2 l& r- fend% A) {5 \! z! J" K9 N% q/ ?5 Q
8 y% k5 c$ Z9 ~' y3 q" _! Yto setup-plot2
, ?8 |' n3 @: l& }; `. S* O6 ?. B- h. X' X1 J( L
set-current-plot "Trends-of-global-reputation"- H5 ~; w4 d- C! Z7 [2 q
) b) S4 w' d2 R8 h4 _2 A+ }5 R
set-plot-x-range 0 xmax( P8 X/ N- |% I. y0 p
! G: m$ L7 O4 C R+ xset-plot-y-range 0.0 ymax
; b, p4 B& x2 m7 a& C: m Rend
0 ^8 L+ M4 ~! I) @& M% E T) b) f9 ^, v6 @3 e) X1 Q6 {
to setup-plot38 `" S s2 u+ {/ ^" }! M
0 p, I$ a& G1 _6 vset-current-plot "Trends-of-credibility"
) l" d3 ]5 i: V' B6 k, y" k# R
) |$ F0 `! X; _1 v1 ^9 hset-plot-x-range 0 xmax8 |7 P# p0 V \+ Z6 `% K
9 B0 |2 s5 \/ H; @2 [
set-plot-y-range 0.0 ymax+ ^3 `) R) `5 W( A o0 [1 T$ c2 ^
end
9 O+ { o6 [) a/ [) p b
7 O9 _4 c/ X: B( }& h5 Rto do-plots
. {9 S* U8 I+ I& j( Lset-current-plot "Trends-of-Local-reputation"+ |3 }; p. b, H3 E- K
set-current-plot-pen "Honest service"/ j+ }4 W$ P3 ~" G7 Q8 [8 m2 y( Y1 {
end }7 [& y& ?3 B' _$ H# I- V
; ~. |3 b+ o0 S$ d# w+ z
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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