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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( l* ^' e: }globals[
) h0 C7 A! p) w6 n$ ]0 \. _/ ^xmax" G% S, h4 R# ], e' D
ymax+ ]/ _& J2 k6 |% Q2 { b5 B9 Q
global-reputation-list+ t y2 Q$ d2 t. M1 U7 p
" w- }" f, E! t4 x2 q" {1 _
;;每一个turtle的全局声誉都存在此LIST中
1 C9 R+ V% V$ i% Acredibility-list a9 N$ @/ V& T" ?2 ~
;;每一个turtle的评价可信度
& ]6 y3 Z/ G, f# thonest-service+ D9 ~" y. y) j( |0 }
unhonest-service) x/ N8 n! A. u. }$ }1 T6 o8 Z# s& f# F
oscillation
* O7 m/ C+ {" f1 m9 Y" V8 Crand-dynamic* V& A6 E) g+ X |) b9 s: a
]
$ Y3 B1 ~# m6 j) N
# K5 N; @7 i# m2 jturtles-own[# D7 y+ P' `/ \" I
trade-record-all) \! c* I8 C1 E3 }! Y
;;a list of lists,由trade-record-one组成
E" v: a1 `+ G, Atrade-record-one
% L! Q: C+ ]/ D$ q: B;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录9 h- r: s* M% M8 r0 x* u" A
+ h& q9 h$ a. K) u& 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 l3 I: Q4 D |: k0 I4 ^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]
; d0 [& d/ h: ?: s2 u1 l$ J$ ~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
, t8 x8 ` y- A S9 t L: Dneighbor-total' g7 l( o* _& @& K9 G4 ]
;;记录该turtle的邻居节点的数目4 U _7 U; F3 Y3 H
trade-time7 l8 U/ Q! P6 R3 j A ~. U
;;当前发生交易的turtle的交易时间9 W% K- W' C9 y! }. n5 [1 A
appraise-give
+ N& {1 u# Z" D6 p4 k- U/ @;;当前发生交易时给出的评价
A( e+ e ^; o+ J6 rappraise-receive( @+ s. F$ ?! W; C! ^! F- K: U- X/ A
;;当前发生交易时收到的评价) _. I6 _8 o6 B& R7 @+ _( q) A
appraise-time
+ `0 H0 j+ n* K$ I; P/ C# r;;当前发生交易时的评价时间
" o# N. R) e" F' Alocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 @, \+ \9 k& E6 Z9 B2 }- ptrade-times-total* D" J% N3 m9 T( F
;;与当前turtle的交易总次数
- r D# ?9 a5 itrade-money-total4 Y% ]* R6 x. q, r! K
;;与当前turtle的交易总金额
2 `, Q8 ~/ d) n7 zlocal-reputation
6 r7 R. S0 x A+ z3 Bglobal-reputation
5 h1 c. G( Y' w5 j; Y5 X/ ?credibility
- _, i0 B8 l& s: k# C. d" x( R9 };;评价可信度,每次交易后都需要更新# f1 I1 B8 J5 b# Q2 U8 S6 _* q
credibility-all
$ K& p1 z+ g% H; i: i. f% ~;;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
4 X8 f4 _( H& l7 J) h( D. C
2 u1 R- z7 ~) a$ g& G;;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
( }$ m6 ~8 |) S' l/ K/ Acredibility-one" b, V- U" ]5 Z1 Y0 B, S" t. w
;;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- V; k w0 W* W
global-proportion
1 @) n) Z6 p8 M( j: wcustomer
- C/ k4 j- N- q. e3 Qcustomer-no% }9 D1 s$ N, x# b8 K' c
trust-ok
+ B7 N- r i b# t8 L4 Qtrade-record-one-len;;trade-record-one的长度
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e8 t1 }9 L1 s7 x: R
/ ?9 ]9 t: T4 @- D! Q# W$ b;;setup procedure" ]" c/ C, F$ C V; b5 U
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to setup) O# ?$ Z( V3 Q% P% ~& G$ p
& I/ L# _5 [6 aca, H0 P' v8 w( N! v; S. q
/ M; s+ M+ T# p1 J+ v- linitialize-settings
9 E/ [$ Z, g* ?, Z0 Y6 T
( y$ |/ L. ~+ a0 f& Ncrt people [setup-turtles]
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reset-timer
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poll-class
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1 {2 { N6 k% \* V; lsetup-plots
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+ G; S* {1 `( N' g: edo-plots
" A# G( c7 W: x: Wend
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to initialize-settings& h& L! a5 ?$ p4 L, [
+ }- x( q+ j( u0 k6 p$ c% Z0 Z
set global-reputation-list []: X K) n1 d3 S' {" w, z
0 E- h2 ^; I7 t3 C* L) eset credibility-list n-values people [0.5]
. @4 f! S- B: Z0 v* ]& k7 O6 b% Z. F- b' E
set honest-service 0
' [8 B9 X' ?! X, i
& x7 z3 \' J5 Q1 O+ Cset unhonest-service 0
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set oscillation 0# @ a1 r) w- }. F# w( Q: n# h
\, w2 z' q$ ?2 h8 Dset rand-dynamic 0
* O. E6 [- h v. W6 B( Y8 C! g) P6 eend
1 s9 g% |4 r* W1 d& E1 l; K6 b; g! A- e! z3 a
to setup-turtles Q" V6 u- C6 x4 |$ ~! I9 m
set shape "person"
e# H: i; m3 i& [setxy random-xcor random-ycor
9 d# H$ {( s `. M2 |set trade-record-one []
6 {5 X' r, E3 f3 w# p! D+ F8 U; d6 U2 k; V3 z( p: k* j: ^; f- n
set trade-record-all n-values people [(list (? + 1) 0 0)]
, O) x$ [3 Y. o* ^4 \5 W" _" L- I! G3 j3 u( T
set trade-record-current []
* a, F. U/ J9 H! k7 wset credibility-receive []
7 V- W; [8 ?) Q. z. N+ Uset local-reputation 0.5
4 K9 u, B: ` M- o1 xset neighbor-total 0
3 |: J7 G3 V5 V9 F) ]set trade-times-total 0% i, G9 a2 _1 j& {9 o' v5 `6 }7 E) I
set trade-money-total 0
b: L: C, S8 f: `, L4 G- Nset customer nobody
6 W4 z' V/ L6 m2 p( o- ]set credibility-all n-values people [creat-credibility]% @0 i3 J, J+ _% t* V' v
set credibility n-values people [-1]
* b$ u) p0 G! w# V+ P! }get-color
! \/ U/ ]3 B$ m8 t
" P4 N( I6 q' Y* ?$ Bend8 Y0 y4 Y" r. y2 f/ D
, c1 g* \8 ^" M Oto-report creat-credibility
* v" i" h, k' @3 Treport n-values people [0.5]
4 n7 J7 F- ?; d& _% m1 h/ _end! G* D4 L$ t( X. Q. g
! Z& f- W4 r% {, g6 }
to setup-plots
& i; t$ J9 i# n6 \9 g' N* o3 S3 d& c# {) \1 B7 @: R0 ]
set xmax 30
6 p- K. q# u) S* X. I' G1 F) t+ `: r3 C s$ @1 e- c
set ymax 1.0; p4 d" m1 A' p M* K
7 n7 ~8 `5 C" T' `/ H* Zclear-all-plots: \2 w8 ~$ j0 s$ Y0 n4 H
& s; [$ t9 d7 A4 o) u: q( }5 x
setup-plot1& F. B- y& v! G8 f( s
, r7 u( ^, O4 y1 y: K. b
setup-plot2
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setup-plot3
5 z6 b1 _1 r" N; o) @. C. ?end
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( W/ d( ^, O7 @' k;;run time procedures
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0 u8 V* u; a( y7 C/ Y; ~to go/ W! N4 m8 _3 d3 u2 T/ X8 R) g
: u( q: \, @0 v% l3 X" `
ask turtles [do-business]
: O- r5 W! U( m! A* u- }end
1 R3 o+ L, [. [2 U w
- l# {: h, a$ F7 Q. ]( D% nto do-business " m: [, d" e9 C5 c/ S
- J+ X. y' {5 _. y8 A
5 m u5 w s; {, ~' l4 wrt random 360
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fd 1
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ifelse(other turtles-here != nobody)[1 r7 t, y# F( ~3 z& W" l
0 c' j) ^3 I- U- @# K" ?set customer one-of other turtles-here
6 W. G) `7 k% X
- u; Q' ]) w# O: K* d( M;; set [customer] of customer myself# M% N7 ?( w9 o+ M5 v6 z
5 o" N/ S* w# H+ b [set [trade-record-one] of self item (([who] of customer) - 1)
* G0 |2 r+ s z6 r# R[trade-record-all]of self
) Z$ T/ x8 @# k6 U;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self2 p0 k1 c4 k0 U5 K
6 X& ]6 N+ w2 F! p
set [trade-record-one] of customer item (([who] of self) - 1)
- H6 M1 d7 u5 @9 v6 p[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self% i$ d3 V. E! E; y3 S' W. T
$ N) a7 G5 r! f Fset trade-record-current( list (timer) (random money-upper-limit))2 B5 G6 U3 X( U
, Q: @, q; ?2 V5 qask self [do-trust]
/ A" J# T, w% v;;先求i对j的信任度( S, y( u) j0 \4 |' x" y+ n# |2 }
+ D7 Y# c4 q9 U( D* n& }if ([trust-ok] of self)
' q9 _% p& K4 ^;;根据i对j的信任度来决定是否与j进行交易[' i v( w |; q% D! \! @$ G9 c+ q2 @2 r
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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. t8 J s/ f8 n# `- o5 Udo-trade, e0 d* B% R9 @1 q! \' f4 {. |
( q: S' x. E, c; f3 x; r. rupdate-credibility-ijl
2 f( G, A" S' `3 A, J; T. t, l) x% A L: {' t* W& A2 [
update-credibility-list+ V1 H! m6 O5 ]# w+ E& }/ L& Z: m
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update-global-reputation-list5 v. e# s5 O; x+ e% n- ^# S4 E
q( C! J( c+ M1 E+ o" p$ l3 P
poll-class
+ }4 d; J/ U% T: R1 N& v; g. y
# B0 D% t" o" k! pget-color1 L h9 z9 m4 l, L1 U. T
# A: n3 O" m) `2 v]]
# ^3 \8 I. h- ?6 O4 b
" L* Q m% W2 _; I1 A3 Z;;如果所得的信任度满足条件,则进行交易
% J N; e7 Y3 ^* x; s \7 V
# o/ r5 |/ n" L/ d& Z[
# |# x' k) ] m" x! ?2 W- x9 ^# a/ @; X5 d& m
rt random 360( R% O* E5 f' h7 u, t( M2 [% M
3 h! I) R& X8 V8 |( e, Vfd 1
6 |2 F, T1 |$ g5 B6 N+ |& {( b4 M7 Q
]) g* F+ d, G; X9 P+ Q
# Z4 @- n. Q ?( x
end
( Q0 [7 A; ~) R. B, }
4 ]3 f. ^% R3 `. S8 xto do-trust ! x: Z0 b9 g! X4 y
set trust-ok False5 S* m7 X2 ^. G& i7 d- K4 L
1 a4 A3 m5 w* M) T4 r& P7 f2 ^9 l) j' \0 g
let max-trade-times 07 Z+ s$ p Y _2 k8 Z$ q8 o
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- D6 [; P+ i! s" i2 {
let max-trade-money 06 I/ G+ k4 o% R- w" L, q
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]# g0 A* v3 ^) L. J" j; X
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). z$ T) x; S# N
3 j9 |1 f: h/ D' |6 }! \5 B
3 c( M7 Z' |9 h* Q# h, wget-global-proportion+ c0 H6 v# \0 A q4 O: y, `
let trust-value
5 f* H: K6 e( a& T( C& mlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
8 k8 s, Y+ {* l3 r0 h, R: Z5 K$ pif(trust-value > trade-trust-value)4 `/ h( v) c: k; G0 B$ U5 a# H- b
[set trust-ok true]
2 B+ x9 i7 A$ ?7 L! P6 c9 D) Rend0 H: N+ h9 B+ D3 d
7 {8 o2 T& o/ f( D3 A! G$ Vto get-global-proportion
- e8 s% L( r5 Y$ e. P, H; }ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)- I- l* p, D6 v1 G8 B0 h. }
[set global-proportion 0]# @, n) q# B: F( y F$ J& `
[let i 0, \# e( x5 F: U* c- `& B
let sum-money 0
# p' K1 t9 K" I/ X6 W* j& \while[ i < people]
6 G4 d* O( i: O+ n4 b8 I( Z! G[
% o' f0 K) r! a; D( jif( length (item i. Y0 R: B ?1 A7 Y/ x1 J* V
[trade-record-all] of customer) > 3 ) M: S8 L6 Q: m L; d2 m5 S
[ d7 M8 w6 b; j' ~2 r4 `
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))* e; N! D" e% V! N2 f8 \
]) ?- T4 \1 F. B6 N8 J/ `; k% n
]' Z; c) l) p$ U: n
let j 0: K7 z* e4 ^6 O8 m
let note 08 Z& U. C7 E9 n; @2 J: d
while[ j < people]
8 s" P% _1 k- v7 W9 g8 ]8 T[
$ ?& a' }+ a$ z: r* e+ p: e2 kif( length (item i6 ~! U3 B7 H2 f
[trade-record-all] of customer) > 3 )
v2 s# P7 B* a% a+ T& `[
! a- Q w" \& Q ?$ Sifelse(item ([who]of myself - 1) [credibility] of turtle j != -1): \7 p5 D' s6 r }$ o
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
5 h& A$ e E0 A' U" C8 p4 ][set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]! O. o* a/ H/ D! f7 y. ?
]
6 {' m# A& f$ [& ~% [- B! H1 U* ~]
1 O) d& f5 u0 c4 Q% K rset global-proportion note+ p: E7 a: x5 @- f4 v% F# z; ?
]+ u- K$ E" \2 B7 J( N5 |( d
end8 V* K7 ~- ^, o9 C2 Q; w
% e1 N2 [' W! Q9 ]' F3 ^
to do-trade
3 h; W/ A' G: A; X;;这个过程实际上是给双方作出评价的过程
3 i8 ?6 h' f& F- _4 o- Eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) K9 v2 J! x7 ~, z$ J c' ^6 sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
; Y( J/ \$ B& nset trade-record-current lput(timer) trade-record-current' ^) }/ T6 b8 }6 A# @% W- t7 W
;;评价时间
# |* K& a. d4 q$ |- K' Y# K' qask myself [ s# m# e6 v: j; F
update-local-reputation
7 N& }9 O. P; A3 N) o0 t$ nset trade-record-current lput([local-reputation] of myself) trade-record-current
: M3 T9 ?$ `% \) m. p' b]
# M$ {& U9 v; j" r$ M5 N1 lset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself! E8 ^7 l; J( a; ]0 Z
;;将此次交易的记录加入到trade-record-one中+ M3 h2 U0 n; z
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 P8 P" x, W- y% c4 Dlet note (item 2 trade-record-current )- ?- i4 A9 t8 E. J0 _
set trade-record-current
% p* Y7 \+ b3 w! Y( u(replace-item 2 trade-record-current (item 3 trade-record-current))8 H4 t/ }& r* g* d' D9 V
set trade-record-current
- Q" ~; B. U# K- r% `/ l1 O(replace-item 3 trade-record-current note)- X! Y) U4 Z' E7 g1 M
) ^# e" q+ j) v+ J' C. H; }
4 H) @# c# r' f3 k7 }& W1 z1 @ask customer [
# O1 B, e2 u5 t4 g7 B0 F$ ~update-local-reputation
9 d& c/ W3 ~6 j/ {1 U) k1 \set trade-record-current
- y8 [# m3 @2 s. H2 o! r5 ?: }9 \(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 8 T( c. L3 _1 ]' q, _! k" O
]
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6 l% i: |( F; v! C: C* x2 Q/ g/ H6 R' `/ l3 J; a6 w
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
3 |$ H: A) f' O3 B! N1 U& f8 F% F0 g6 k& S2 N! K
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
* O \: X: z6 q# @9 i2 o;;将此次交易的记录加入到customer的trade-record-all中
% J( o% ?( q5 Qend/ u8 T% }" L/ z2 D8 O
: f; f$ a q$ }- _' I
to update-local-reputation+ I$ T" g+ g% B/ K6 o+ J! I7 F
set [trade-record-one-len] of myself length [trade-record-one] of myself
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. s; m: B! M( O6 `; _! d6 ~+ n
, ?# u, s' W1 x;;if [trade-record-one-len] of myself > 3 # t Q/ v: X, K
update-neighbor-total
; l( o3 W- r$ G, ^; [+ u4 Z* v;;更新邻居节点的数目,在此进行
4 b' _6 B9 O/ n" c3 s- f( }let i 3
0 |5 ?6 K0 ?# c8 l1 j5 a blet sum-time 0
! C7 }# x1 [" Y2 k9 U% P! kwhile[i < [trade-record-one-len] of myself]. a) s I, ^) _- F+ l7 \
[% N& n* C, {. O+ X0 d+ F) [
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
! Q, _- A5 a! ?set i ?" C2 ]7 s9 l
( i + 1)
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, w f4 l4 R: K7 Zlet j 3
, r( I6 R+ V$ a( P; w! Y4 c8 l4 @# ulet sum-money 0( m) H, s7 P- J0 r3 t
while[j < [trade-record-one-len] of myself]
) ?! [+ F+ T; f' w% a% h[+ Z* n! f4 u' g0 H- Z
set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)# L6 X2 M& Z* Z- Q. J
set j
0 F" ~& r: d8 m, R: \) Y( j + 1); `; A S/ Z1 `- w* x9 K J
]
. B8 q6 Z0 s( t% P) @2 ^3 ylet k 33 o' N* N% c' w
let power 0: V0 f7 P- U" R) ]$ j
let local 0; L' Z2 ]: f) n: i% F
while [k <[trade-record-one-len] of myself]
2 o/ {1 w" Y [: f! \[
- o3 l1 b+ [0 dset 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) % {. j$ t8 [% Y; V
set k (k + 1)& ?. y3 O$ K9 n- P% R2 d# P
]. H) V( t j4 ]+ |+ E9 s
set [local-reputation] of myself (local)5 A8 v h# v4 F. P* m9 q
end
( x$ }, u7 m' G3 M/ O0 e: A- n9 z: Y+ }0 g% k9 i2 x
to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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/ [) g# }* h8 G2 [6 z
end M, g9 |0 s6 {
& U4 W( I" m: @6 R$ A: \0 h% Nto update-credibility-ijl
# ]; j/ u2 x) q& }7 k: u
& |% u) P* J. L4 P9 C4 \8 d;;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 V+ O/ M9 w, P8 l8 ~: v
let l 0' {: b, C5 _3 B
while[ l < people ]
9 i% t1 Z: M) R" q;;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$ D$ u3 N& k+ C) o' j
[
! P5 { d5 Z) G0 M# P/ Vlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
( Z/ |+ k5 k" e. E! k1 gif (trade-record-one-j-l-len > 3)
% W! E' v( P `$ p3 j/ s9 h9 K[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
/ u5 v- K, i: w: f' J) m6 Flet i 3' Y# B, j5 J# O; ]; L- b; |
let sum-time 0
* K. r# [, E0 M- u6 ? }while[i < trade-record-one-len]9 _. J8 V6 C4 X' T
[& ]9 n: z1 P) i" V
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
9 x2 V3 |+ r. ]6 q) k* ~set i' g+ ]5 a- n8 x1 ]* P4 u5 ]. M, q
( i + 1)
& P. g* }- d& f' w3 d, j/ ^) X6 ^]
: D3 p S, @$ X _let credibility-i-j-l 0
* W' W0 x' n k3 ~. \: f;;i评价(j对jl的评价)6 n# Y# P0 W" F3 X, p7 C
let j 3' X3 x( a4 H. V6 l8 I4 N0 H! D; ]
let k 4
7 H, Z5 }7 q4 Nwhile[j < trade-record-one-len]( D5 h$ p( c2 O
[$ z& f. T! q% Y- Q r, m
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
. M& j/ b3 s f; ]* jset 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)
' C& d6 I, O2 m% V6 I: p1 dset j
8 P$ K: o- ~( A2 n. |( j + 1)9 l) a& O# |& t# F0 r% R( m1 u2 U8 H, _
]& w/ n9 x* V+ O0 Q! D
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 ))1 P0 t- A3 T0 r. e4 F5 k
, E6 W8 d, z7 _' y, } r9 \, v
4 F) D& D: [% A- klet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
' a' R d3 f; j1 C! ~: P' p8 m# C;;及时更新i对l的评价质量的评价; h$ `! O. ]- C# s
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]: u; ~9 E. b: `9 ~& Q" B. j
set l (l + 1)) d& r" ~3 n# A4 o$ J1 _( X
]* a" S# U6 p8 T: e0 f( ~2 Y
end
( r; o$ t0 N8 h$ y: T& L% d8 v
# P) y8 h/ j* ?6 w& }3 \( y! @. Lto update-credibility-list! z( {! G; A6 F9 e/ i
let i 04 g1 D5 n, N0 m$ a, F$ Y: V7 I% h+ B) a
while[i < people]
3 s4 l4 \* E& \8 S* v+ T[2 V: q4 ~6 \% | y9 e4 O
let j 0# {- W+ d6 T2 k- g& W3 L* e
let note 0: g: I( |0 \# b7 ]/ O: a) Q
let k 0/ o4 r9 ^: w* ^1 { M' E# M
;;计作出过评价的邻居节点的数目
% X, q4 U, ^2 [+ t0 P5 ]% owhile[j < people]- v1 l& C) X5 d- g* U3 w0 U
[
, _" y4 f9 @" o7 _0 n0 }. F" t3 uif (item j( [credibility] of turtle (i + 1)) != -1)
6 o# W+ u2 s- U( ]9 h1 H$ P& s;;判断是否给本turtle的评价质量做出过评价的节点( v/ q, k' j, ?, l0 V- y, _
[set note (note + item j ([credibility]of turtle (i + 1)))
. [% z$ W7 f. o: u" h;;*(exp (-(people - 2)))/(people - 2))]2 M5 a' B: p x; ]9 T& `. C
set k (k + 1)5 h! `4 @+ S: ?0 k8 c3 ?
]8 x m* a5 G% A# N; W
set j (j + 1)! O9 @1 O& O# G, h# }5 b
]' k' B8 v. {: R3 D$ V
set note (note *(exp (- (1 / k)))/ k) C q" ]) J5 e* x$ a/ @
set credibility-list (replace-item i credibility-list note)
! Z2 k6 D7 g/ o7 b2 k* H0 gset i (i + 1)
( B+ t# F) `" g h]
5 S/ I x7 v9 C! Gend5 I% K! F1 I# j
! W z& v1 z' L- tto update-global-reputation-list, G0 k3 _- r, W# D+ O( S5 E0 \
let j 0
; a* _/ o" J1 g4 rwhile[j < people]
! x5 X2 h. W8 f+ b1 y[) h2 S1 d/ l; }5 o
let new 0: x9 |' |7 ^7 o
;;暂存新的一个全局声誉
* ]' d" z! k1 \: dlet i 0/ m4 o! h3 d. n, x
let sum-money 0
. {' ]( x& k& H$ o! l/ Y2 ?# D3 Ylet credibility-money 03 U9 P/ p& Y* r5 `' n# Y5 N/ b( l4 t: R
while [i < people]
0 R, u& U9 c) P/ n[7 N' R8 Q& @* k6 Y
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) X- O8 s# B# Z0 j: l4 Sset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)), m) \. L% ?5 _5 _
set i (i + 1)/ W w- I5 `( D+ n2 W6 x
]
4 _1 r" ~4 U5 `7 x% }let k 07 Z- }5 @: q* k8 i- ?
let new1 0( ~% c. n; q" q/ }5 y
while [k < people]. t$ E" r2 J' T; b) K
[4 V1 Y0 W) P5 t3 [% K
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)
4 H7 Y2 f) u0 @& lset k (k + 1)
4 C+ g+ b4 A. j# `& e( s]
' v# C" u% z$ h- V$ i: r" Qset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
9 R) E# g* a! }8 |$ c3 Mset global-reputation-list (replace-item j global-reputation-list new)) q$ l1 R, @5 E+ O f) d/ Q% }6 k
set j (j + 1)0 I- T3 z( g0 \3 n
]
2 O: `: X; S7 m# m4 i* y. t! iend0 e/ a& i$ N v6 x" ~/ q* I7 g
/ ]( M# W- _+ ], n" e2 K8 y
* c- }* J% G( B/ @
9 f0 C# q! O& p& b
to get-color
! ^; l, V( _- p) A7 j$ ~
. d5 A, p8 i4 A8 Tset color blue- ?' ^/ f( H, Z! e8 X! E
end
% z: g. T; y- J9 A5 i! G7 V# d2 e6 Y8 \; l8 F1 `5 b/ u
to poll-class
% T, l4 \+ f x0 N% |end6 F) f j+ Z, O z0 \
' G) U) f+ c. U- `* p9 h+ wto setup-plot1, g' x) ^' B- R, c3 ]+ r6 s2 `+ h
' X, |0 D: P) |, A$ U: uset-current-plot "Trends-of-Local-reputation"
4 e# t, P2 s% h z9 q! P$ g# e, i9 a6 i8 Q! e. q' P9 G
set-plot-x-range 0 xmax
: @5 m z6 I& m8 A* L4 d1 A' @6 L p' I$ W; e
set-plot-y-range 0.0 ymax/ g* w. N2 i9 ], Y# a
end' t4 ~0 K3 ~) ?0 X1 m6 a
% J4 ]2 P# ^# T$ W. B- o
to setup-plot2
2 C' x& b* q( B7 r+ _0 K3 b5 f# d; M9 w- m+ N
set-current-plot "Trends-of-global-reputation"
/ I0 j- {4 a: P2 H" }- P: U4 ] n+ s- g( c: u+ ?
set-plot-x-range 0 xmax
6 w; B. w! ]7 Q6 [5 c- ~0 [8 A, s
, S" j1 i+ I( e9 L) O( Q- s' jset-plot-y-range 0.0 ymax/ @& D& H" C! n
end
4 ^, `4 P; X7 x* E
# z: |+ l+ N9 S oto setup-plot37 h6 t8 K8 |5 R, L* v! O3 ^
' V. @6 y& h0 S( iset-current-plot "Trends-of-credibility"
% z7 P5 p2 r3 f I) a4 w- [* x" {& u8 I# _7 K
set-plot-x-range 0 xmax, B# p* M& `" u# }/ C$ q
4 ?8 Z( b- n3 V0 v" S( X3 d
set-plot-y-range 0.0 ymax/ l! ]5 P1 Y4 }
end3 E# M8 z* N' w7 Z
2 q f1 U+ p# V3 Qto do-plots( n, C& r6 @- p
set-current-plot "Trends-of-Local-reputation"
- Z1 ]$ v8 X& y0 x5 U1 ]set-current-plot-pen "Honest service"8 a$ j, \0 P( F# e( h7 I+ X
end8 m! d# i- x R
! v9 ^9 {! j$ ]6 N" a. N
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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