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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
! _3 C9 ]* T$ ^1 Z. m' W1 ^globals[) v3 y: N! N) K9 H+ }; ?
xmax" @. L) V0 n8 |$ J
ymax
7 p4 ^' Y8 A1 k6 [$ ]3 i* zglobal-reputation-list! A: s& l( W* T0 A+ H! v
' f' G7 ~4 d7 I6 j;;每一个turtle的全局声誉都存在此LIST中! {0 o6 ]: i2 u1 B* O1 b
credibility-list
' F$ q( {; b3 @# f+ Y2 z1 F;;每一个turtle的评价可信度1 {) F; D* q3 p7 U$ P- i8 @% a
honest-service
8 C; Z8 \, |8 {( nunhonest-service& Y) p0 N s9 h I V6 R6 l
oscillation
3 y% i1 N B6 a* b2 d2 L$ Qrand-dynamic; Y/ z/ S* p% P' p8 C$ k
]6 J- ?& W* ~) Y' F7 y
- z( C" A3 b+ A: u& }" B# {& L3 w
turtles-own[
0 f1 o" {! n# }8 m1 ~' F9 D5 dtrade-record-all
9 U5 E& U' D& Q;;a list of lists,由trade-record-one组成! T' e9 y& J* N8 M0 r- Y6 t
trade-record-one$ }3 L/ U) p. e9 H* A( B7 \
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录8 C8 W `4 C J; o$ ^+ n/ [
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;;[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]]& q7 `9 @ y4 k/ A
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]# c" `! e3 |* J# }' X
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, O2 F6 h d; A, O2 T# U* x$ o; _
neighbor-total( D% t. E) R8 m
;;记录该turtle的邻居节点的数目6 ?2 u4 S/ v7 J: A" u6 J
trade-time
l' W# m+ b6 t2 o. Y. K;;当前发生交易的turtle的交易时间- B/ f2 v$ g; Z9 m3 u
appraise-give/ \: f2 C- ~4 j
;;当前发生交易时给出的评价4 n% X. m/ h! y
appraise-receive
5 J6 Y- j6 E, Q! X;;当前发生交易时收到的评价
# ]; X1 g" y7 g; B$ e: dappraise-time
$ U' h2 Y% Z, H( |$ H9 e;;当前发生交易时的评价时间+ @( l: L) Y5 S E
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" m% H7 R$ [" H$ _' @trade-times-total$ D) \1 U6 ^2 @9 V7 V
;;与当前turtle的交易总次数- a. t; k+ O/ B) _! x
trade-money-total0 w: Z Z; l! D, Z+ v7 F8 e9 W) s
;;与当前turtle的交易总金额$ o( v' |1 b. O+ E/ K% m! |
local-reputation) u( _) |+ M8 a4 ?3 N
global-reputation6 C2 b" L0 S7 W3 G+ {2 q6 {& ^: x
credibility
. t6 ]$ l$ z' O; Z7 s. I, O3 X9 a;;评价可信度,每次交易后都需要更新
8 n. i/ {2 S( h; w8 \, k: |credibility-all
) {* F6 N" M+ |; 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
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0 v6 i5 p" y. w5 m- n( E- q;;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
/ q# ? P- D Ecredibility-one
- }% v+ _. U2 };;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
1 ^& e, Z6 \( z mglobal-proportion+ U. K) V, V9 ^+ t
customer! o I: h% Z' ^5 ?7 z0 ?
customer-no' E6 V2 I6 b6 n) s
trust-ok8 J" ?( ^# B/ b/ ~
trade-record-one-len;;trade-record-one的长度
6 G, X; d6 c: ?]
* Z8 q' s! N* V7 u/ ` J: j: h4 i/ N" u& w. S
;;setup procedure
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to setup& M6 o4 {( h- G) @8 R
1 a9 {& Y" B J
ca
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1 N- h* R% K2 Z% Z: `) y' M+ n3 ]% l7 t) Zinitialize-settings5 m- d* ~# r, @% B3 P$ s# T
, J2 n' k6 V) ?" }; m) B acrt people [setup-turtles]
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reset-timer8 K# v9 v& F, q; t% s4 V! x Z7 n
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poll-class
2 ^" d: n3 m6 |5 t2 V/ t1 H6 K& W
9 D# x7 U. k9 Dsetup-plots
8 L7 K* Z$ o* b7 J. Z" J- [, K" h' x$ c. n
do-plots$ q3 w8 h9 S! O/ a5 v8 h
end- i7 B( X% k+ H- G4 e2 g
9 I) _% N4 r b' {
to initialize-settings
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' b1 y& I5 j) _& u ^& yset global-reputation-list []
) p n, z* J; X: L3 k/ g! e( i0 O. [9 ]2 z8 i
set credibility-list n-values people [0.5]. [5 T5 a7 Y9 k* K% J
* k) c' f6 H4 N# F) ]! @4 l eset honest-service 0
]" F0 J( T F! ?9 r& S7 a- G3 W" D1 s
set unhonest-service 0, D2 F2 \$ j% I
. K# p5 m- N' vset oscillation 09 x- |. W" N, ?7 Y; V) @4 s
2 `. E W8 X4 R" O0 f1 j& c
set rand-dynamic 0
* O& E9 V- s/ `: J# ]! e% f# V" g! Cend
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to setup-turtles
# B5 W* y) u$ H# z4 i/ v4 [& bset shape "person"& V u: D6 p. ?9 d. C d) M; X
setxy random-xcor random-ycor
- e) N" d1 B: y2 wset trade-record-one []% ~ ^ E. i# H
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set trade-record-all n-values people [(list (? + 1) 0 0)] 6 o7 }! M! |# E% c/ `# G7 V* s
, E5 M1 e& D4 V5 K2 J4 v
set trade-record-current []
9 R) Q0 T! e# M- m# N9 F4 jset credibility-receive []2 W+ s: R( O1 V& l2 r- V: c( R
set local-reputation 0.5' U$ |5 B, b: R8 U; M
set neighbor-total 0, }* J. `& }: ^, ]5 E+ A
set trade-times-total 0
& K3 L7 B+ A" x8 _/ t, Nset trade-money-total 0
) t, w$ U1 S9 B9 T: {7 G5 O4 ]# zset customer nobody9 {0 y5 B7 t; e9 n3 B5 V5 j+ W
set credibility-all n-values people [creat-credibility]* d" }! T7 t E5 I( }
set credibility n-values people [-1]" v, {/ s' H& \1 ^2 U( ^
get-color
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& I9 J6 _$ M* Q+ }+ N3 c5 qend8 f! @; H0 R6 I- o; V- v
" n$ {5 L3 O: L% \: W* x1 C9 `to-report creat-credibility
4 Q/ \2 s8 y N# G/ Vreport n-values people [0.5]
) ]/ `" Q5 Z c$ {( |end
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" M7 _ d4 e, A. ~* K4 F q! Pto setup-plots W1 f& A: s: Y7 t3 N
" Q" z+ _; N% o( O/ x) @: lset xmax 30
; n$ K+ K( m! s J) Y( t2 {6 Z$ P2 B: _% q9 W6 @
set ymax 1.0! d+ o4 E- p9 b2 {) G0 i
, h+ P2 e: C( G# P" E# Y: n2 C9 @clear-all-plots
# \; f" F3 a& E' w* V9 f& K
2 |* ]4 _2 [% J# I7 k( x fsetup-plot1
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setup-plot2
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2 S- \ H/ k1 z9 isetup-plot3
. Y, V Q# d- J7 t( F8 Cend
/ i4 C7 F* Y; s
, X" g$ N& `+ V2 F! r9 ];;run time procedures
5 d1 A! c9 A" ]5 j" I) ]
2 a" P7 \: |8 m5 H. Rto go3 w# V$ p! u: s2 C) Z7 ]' L) ?
* C( }- k2 N2 p2 w1 e. {. Task turtles [do-business]
. c1 G) n/ \" ~2 Y0 pend- [% D0 O# i6 I( X% C4 N; K7 v: ]
* y ^# z* [0 r& p. i. w$ mto do-business 1 G& H0 v" ^% m8 X" l" o
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; z6 `+ F& x# a. H# P0 u' o
rt random 3607 p8 k* M( N5 j' O! K
. m: Q5 `; O4 M" ~6 _& v! I4 Zfd 19 A- C0 q1 o; b0 W8 K. N
- s) J/ D8 ]6 Y# d: h1 B6 @ifelse(other turtles-here != nobody)[# H. E- y \4 u; f4 P
- u, n# M. j6 H3 v2 t% I
set customer one-of other turtles-here, ~$ |, b0 y4 e& v u
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;; set [customer] of customer myself
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$ p' [$ s- [8 N" ?# e# Tset [trade-record-one] of self item (([who] of customer) - 1)
, P0 h/ p2 |8 q3 n[trade-record-all]of self
" S( ~4 U1 l3 {) f5 e8 j;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self. e1 G1 Z2 K! n
, v! n, ^0 O, e; P% L. lset [trade-record-one] of customer item (([who] of self) - 1)
V, @5 N- j2 N0 p[trade-record-all]of customer+ t) u$ X+ @4 P1 C- g1 h7 E
6 v/ ?/ D' s, v5 r# Sset [trade-record-one-len] of self length [trade-record-one] of self8 ` e+ o4 u: [/ a2 S$ ?
) Q1 y9 s% _1 N7 x/ tset trade-record-current( list (timer) (random money-upper-limit))1 b+ f- N$ |5 V! g! @2 }5 r
1 ~+ E$ u% x/ N' z
ask self [do-trust]8 b( L. w# E, E
;;先求i对j的信任度5 v# f5 F- [' C7 ~
y* P0 x. g# {5 z: |' N
if ([trust-ok] of self)
' ^5 X3 N: h0 u2 r;;根据i对j的信任度来决定是否与j进行交易[/ Y7 z9 w) t2 E0 i
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 T0 \2 H: z- m! H0 }0 H9 F
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[
8 k( y8 K1 G; {
3 p, M, U3 A. D8 ^$ a( q. kdo-trade" O3 R& D) E) V1 L5 s; B! p5 c
3 V; {- @" }3 N' Y; I( p! n
update-credibility-ijl
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R) p2 Q9 P# U8 c4 O! @6 Yupdate-credibility-list
( y9 U0 V9 s) L% r5 }6 _! L' {9 _" q8 M7 x& Y( f
8 L' Z4 L$ }2 A. P* qupdate-global-reputation-list
1 o1 A7 i' N4 i3 x( l6 T/ I$ W8 |! v( h3 _; Q
poll-class
" }3 n7 A9 v9 v4 M* F L; _' N$ i
+ B; P7 e5 U1 gget-color5 w% A4 g" G; V, ?! Y, Q; O7 R
% F, z2 j3 b6 `: W
]]% O4 ?$ w) @! Z1 }# c }6 g1 S& J
! z/ S/ U" s8 I V6 Q# g4 m;;如果所得的信任度满足条件,则进行交易
& q _- L/ |9 ~ s. j: @6 [, _3 u7 s" p+ L
[0 d4 M1 {6 W8 e. n
/ s! \) b& m: A4 |1 n
rt random 3607 _8 l9 j; h# a$ w6 e6 m
. V8 T- I) `) A+ P" a% M- |5 v9 `fd 1
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end) f/ M8 J. D2 [$ Y$ n; h
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to do-trust
- I5 V; l1 v& Eset trust-ok False
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4 P0 G; d) t1 a: u' V8 Qlet max-trade-times 0
' i& C; ~; g( J: `, oforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: m2 ?; a. B. l4 d
let max-trade-money 0
% q, W# Y) |! [( o2 A! g1 f0 G) h4 Sforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
0 ?. b) j. y) U, K. rlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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( ~) v! S+ d& _. h) n2 U6 p4 p# C; g
get-global-proportion7 J+ k, P3 }* f' E+ ~8 w
let trust-value
/ r& F; p1 U! m6 O9 Qlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)4 ?0 K; U0 y1 B% T
if(trust-value > trade-trust-value)$ f9 V& Q0 U) h; ^; T i
[set trust-ok true]# Y" w+ T3 a2 l, T) ]
end
* w3 @* {; b7 P- a' B/ ~
9 k( W' q* t( U* Cto get-global-proportion' R3 S: V3 b* Z" \" C: ~
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
! G; k$ P( U) L7 w* _, g5 |[set global-proportion 0]0 ` B0 E0 u+ ^
[let i 0" w) X% ^: _- }( O0 r- Z
let sum-money 0" H- \+ _. N& t# S1 e* y2 ^
while[ i < people]
+ ~ T5 d9 l/ `[- F' o( W# D& p6 b% ^, d5 `
if( length (item i' B9 O( e9 A0 w+ \9 W& A; J- S
[trade-record-all] of customer) > 3 )
, G2 q) L0 \2 }# g8 H1 y2 V[
4 G' j8 N/ I+ t" ]+ pset sum-money (sum-money + item 2(item i [trade-record-all] of myself))5 I! d8 e$ O, m9 [5 b* w. Y
]2 b2 |$ {+ f) L: a" R; `6 J: F* Z
]
! P6 ?7 w" }2 Zlet j 0( G7 o4 }0 ?7 A3 l- @
let note 0
5 D [" P6 r, O+ ^" Wwhile[ j < people]
: I. H- A2 k# s. f! h0 u1 {[6 N p9 O6 n+ j
if( length (item i
8 f2 i/ n( ~& E4 d[trade-record-all] of customer) > 3 )
& m7 `5 R0 n0 H[
* T. [& o% F: k, s2 i$ `: vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
! M9 I1 b; S9 p; Q: W[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 j! g' K# S0 j* v+ v1 D7 f
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
+ q+ _4 w9 G4 t9 i]
+ E: w* s0 j/ H) I! a( ]2 c]
" x1 t9 v8 G3 g9 J `5 V3 b# J7 kset global-proportion note6 x! B; H. C- n/ S6 m+ _* e( W0 I
]
' s7 B' q# j& p* {end
; }- a- Z5 F2 M; U0 {3 Y# @; V. g' f: p; P. o1 g% ]
to do-trade
& v0 S4 O2 A8 x5 d) x* ~- f0 X;;这个过程实际上是给双方作出评价的过程" z$ a2 {9 g: K, i- a% ^; p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
/ t5 W* m! r* mset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% w" y: m: K5 ?, ~: j6 Y( `" G, f0 wset trade-record-current lput(timer) trade-record-current _% N5 _2 J( }2 f% R
;;评价时间0 M( V1 @7 N" R: K& @
ask myself [
: L2 z# a ^: B+ v6 Y7 vupdate-local-reputation
; h, p) a- r1 k* ` L$ mset trade-record-current lput([local-reputation] of myself) trade-record-current/ v6 n0 @1 t! H( E: x6 d. d. v; d
]# J2 S8 L) L, Z; C9 A( w
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself1 m$ Z" @' g! J7 Z- y: T- s
;;将此次交易的记录加入到trade-record-one中6 [, p. \% y$ ~$ E4 N X- }
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)7 } X0 S- C) `$ P
let note (item 2 trade-record-current )3 C; b% u, q& B0 m( p! H
set trade-record-current' l, w8 I7 ~7 I, q# ?. e/ Y
(replace-item 2 trade-record-current (item 3 trade-record-current))
/ @6 e0 F A% S* wset trade-record-current9 R% J) v! p L
(replace-item 3 trade-record-current note)5 q( G$ e h* l) f8 W' Q9 u6 X
& E! f8 `+ D# X0 E
6 ]. i5 G; a Nask customer [, `7 I6 V- S- f& V6 k3 {+ I- d H' m
update-local-reputation8 j. T/ K3 P2 G% X! q) F# ?8 X
set trade-record-current
8 j6 x) N/ Z6 l(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
U0 V% [0 s( w5 m% N, ]- ]]# h0 W' v9 y" D7 a
5 o/ m+ V, T! w$ t
; {/ |# ]3 B' q5 g+ z
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
* K- m- G8 I9 q' M4 u! ^% U3 z' q8 \0 F3 X" ] b
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 @+ n/ k n5 q m4 Z" T6 S
;;将此次交易的记录加入到customer的trade-record-all中
& k. h/ l! K& o, `0 wend
) L* e) F* G2 C0 `4 W) C5 n8 N! C# X8 d! a# D0 X3 ~/ P+ z" M
to update-local-reputation
9 g( N" g- m! w. Uset [trade-record-one-len] of myself length [trade-record-one] of myself
' h. x- t% D; U$ v' j" @% Q/ E8 n) ~9 v) Z L; Z0 R, ]
& D) w" M' g. F5 ^- b5 G;;if [trade-record-one-len] of myself > 3
/ m' W1 }1 _9 \ a6 D0 U9 Xupdate-neighbor-total1 c) k/ {+ w, c1 s
;;更新邻居节点的数目,在此进行. M5 d1 e) S0 t z! x
let i 38 K* H2 G3 p p: b6 V
let sum-time 0: d4 T0 r7 [- F( E; U
while[i < [trade-record-one-len] of myself]9 w& E: R: r2 N( O/ U
[
& G1 k* M- \4 q {set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )) @" \$ N5 P' D. F# J3 A
set i8 G) d6 r* c0 Q- b6 }2 h. \( U
( i + 1)
9 R$ f. Z1 v, w) A+ s]: n3 Y2 D# U/ n& ^$ i# k
let j 3; Z2 o1 a. }, o) }0 g
let sum-money 0# W* R$ p% c$ W6 [; L* |4 F+ E
while[j < [trade-record-one-len] of myself]7 b: L. s% k! B g
[4 G7 [+ r1 |, g2 r' {( L4 y3 Y" o2 t
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)3 {2 ?; B5 p' h+ ~2 ^
set j" i4 k2 g6 d2 D" O
( j + 1)
( [, W5 S8 R7 R; u8 ~) J]1 g' p. O) b7 S8 i* e
let k 3
2 y9 v$ q# W* S3 S) i7 V# llet power 04 E* K; \6 V' t! d. a
let local 0
( T5 _, _2 {; h, W, _3 Dwhile [k <[trade-record-one-len] of myself]) \# a b2 w' I
[
) H! P9 E$ v# xset 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) 0 v, x2 p+ K2 w- I, w W
set k (k + 1)
U' I9 K: z; h; r]2 G: z5 f" ~+ i8 x
set [local-reputation] of myself (local)
- W6 q0 ?2 B8 Z/ hend$ C6 X& Z" i; e9 a: g
/ K0 h: M7 Z: q0 a W4 a
to update-neighbor-total% G' }, e5 R( d. N$ k# L6 B
# M! S5 b8 C" d; |* Y
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
K9 ]$ L( S& l
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end! u0 _& L9 V/ S& ~
4 B! M/ l% n9 ?" l. g3 H5 F- Fto update-credibility-ijl
1 _7 t' O. m8 C H& @- Y" L6 u) p* p
;;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。3 ?7 q2 T& X& x0 X! O! E8 @
let l 0
) T" u. X# L& C; _0 y9 k' Awhile[ l < people ]% Q$ \- Y# r/ d, F6 c9 _5 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
8 ]) V! }. o' a& G[' H/ F# ]" r) c; H9 i. u
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
/ f; B+ D$ u, ^# @$ Nif (trade-record-one-j-l-len > 3)
$ r* c6 O. m5 d* D; _, A[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-one8 X0 g1 w% ]/ X
let i 3
0 b9 g- h3 C3 T" [let sum-time 0
4 f! _" h7 F1 y5 J( G3 U# ^4 P( `while[i < trade-record-one-len]
! Q# X! Q& O0 X1 d( O[+ C) d; c2 J3 A* m% u
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ Q- e! B5 z7 R$ c" f' g( Y
set i5 O6 h6 \4 L# j4 x! s/ C
( i + 1)$ c+ w' \" `' F7 T
]
) d3 ^$ j: \! A$ H3 s8 K! \let credibility-i-j-l 02 p% E( F8 `8 n8 v1 j# i
;;i评价(j对jl的评价)
! l# u5 ^8 g5 {let j 39 r& ?% a+ \5 e2 s& ]
let k 4
# S; r, R* o9 [/ U& D: Awhile[j < trade-record-one-len]7 e2 j0 Y+ ]% U6 X& K+ p' V2 y0 R
[
7 r; e2 T& g) j6 F* y* Swhile [((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! ?5 \" m3 Rset 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)1 @5 @7 ~0 \9 k. Z, R& J) J
set j
! f! d) f: z) o( j + 1)9 a5 C' X5 P/ \# u
]/ d1 A/ \+ v# z. s
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 ))8 K$ {1 ^4 {% V! h1 c
0 p( r' j" m' F) a9 a( |
6 P$ Q0 A) z( `$ T1 C( Ylet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
' L: c+ Y, q0 P;;及时更新i对l的评价质量的评价
) T; G+ ]6 d& {; ]set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 ^9 l- b" C) ^set l (l + 1)
6 M! m6 u9 N+ I/ p; m) ^, F]% ?% z' a! Y, l0 G" `& H# j ]- v
end
! b& _: [! V% c5 F7 _) O7 R w" o: t+ @ w% ^
to update-credibility-list8 s2 ^6 e. y6 x$ Y
let i 0$ u3 P+ U$ \+ T' r, q4 u
while[i < people]
0 r0 _* v0 ^; U[
, j g9 r0 h o6 o( g5 u! ^( k# ilet j 0
6 G% n* i) J. @# z( Klet note 0
0 W, A p9 d. _2 l! @& J& Rlet k 0; Y. {$ A; s+ s$ @
;;计作出过评价的邻居节点的数目0 ^5 }9 q n7 e' x
while[j < people]2 \3 A% e, R( J' M: E2 @
[$ L8 M- ~/ \2 n
if (item j( [credibility] of turtle (i + 1)) != -1)# }4 k$ b4 D7 j# r0 h8 _9 Z
;;判断是否给本turtle的评价质量做出过评价的节点
$ Y) c1 @- v V6 W[set note (note + item j ([credibility]of turtle (i + 1)))
% U) x8 T# U) y# S2 K: {;;*(exp (-(people - 2)))/(people - 2))]
0 M' E7 I1 M( M. Eset k (k + 1)+ q$ l: A( f0 x; c+ ]. z+ H1 K$ b, E4 [
]
" P; K ^/ _, w' {* V" yset j (j + 1) S8 E( O3 e: `
]
) ]+ L5 k9 f: G/ ]; ~# Zset note (note *(exp (- (1 / k)))/ k)- j+ Y0 m! `1 v+ B J
set credibility-list (replace-item i credibility-list note)
; u% D" _& q& K c0 uset i (i + 1)
+ G$ G- u5 M& z0 K8 g]" j7 P+ D" _$ }
end% T, q, X6 }7 r3 |$ m9 t
( n0 a% u5 ^; {1 z0 Q/ J
to update-global-reputation-list6 |0 P7 ~* Q1 B& v2 f. R" u; N B
let j 0; @2 R- e3 T) Y/ R( S' [8 ]
while[j < people]
3 U/ k( ?+ o( X( P3 E% e% K% S, J[' q4 G8 c6 u( ]
let new 0
5 x* U' n4 f2 S;;暂存新的一个全局声誉
5 o4 g# G' f; v5 w j. P$ blet i 0
: W: b2 O$ l2 v+ f) U; B ulet sum-money 0" @" {1 J! I4 I, s% b
let credibility-money 0
2 c1 _8 e* i9 u9 Q- Mwhile [i < people]
5 \; i' o" e$ F( k[
0 a- h+ N' ` @/ F5 U2 |+ L7 c, Cset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))+ G( H: S6 Y p% V. ^
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))* F( q% T. C- _2 {0 F; u
set i (i + 1)
1 d: N8 K- D; F5 K- H7 @& t) K0 b. e) n: A]
- Y! Z) L$ r5 t" t: e. Olet k 0( Z3 `. ~& h G+ ?$ x" z
let new1 0) t5 e. K" p( Z6 X; r& _( ^& m
while [k < people]/ L* P$ n; F5 g& X: X; k1 \
[
& `4 q: O" n0 J& aset 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)
6 d8 ?4 c$ n& p- c' Pset k (k + 1)
& T' A9 s& m/ m m]
2 @( i1 ^* W9 X; d) @* ~3 R# Oset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) + S! Z& n0 [' }+ D
set global-reputation-list (replace-item j global-reputation-list new)
4 b+ B: W; S5 H' {' m. cset j (j + 1)
1 {( R# X. N5 R+ _3 D! b]4 R# x+ l) v' N+ q4 l# @( A. S, k
end
u' }# E' j- B, h' K6 {6 a0 K4 n c4 ?4 |
- S' I. I+ _1 E
( C9 _3 s- R @, [to get-color
! ]% z- U) v9 t+ y: y. E9 T0 s
+ }: B! {% \0 ]( I1 t; j; pset color blue0 Q; N! r# J H# F/ M0 {. s$ f
end. m7 k2 R) Y1 H6 d# v$ p& n
) ^# K. t5 o' C; V' rto poll-class
' h* x, h8 z9 yend5 Z4 p5 T% C- m- _+ H b, y
/ z0 Y+ |- W( D& C/ I3 w
to setup-plot1
& O, U q( I5 R% j* p* y7 f9 m! o' j+ J M x6 r
set-current-plot "Trends-of-Local-reputation"
) A1 y4 z/ [5 ^9 e& ]' @6 x! [2 m- n" i0 v! n* B! {
set-plot-x-range 0 xmax
* I/ X, ~) b* [% G# L }2 x* l3 H2 q% ]9 K. S
set-plot-y-range 0.0 ymax7 ^, K J$ A) R( `( ^- Q0 d
end
7 U1 I: o, e" A7 b' E0 A% g
/ p6 o, K$ J5 H1 G/ P; Eto setup-plot2
1 v# T+ M5 Z/ h# {
/ U9 i/ H7 l4 A$ ]+ ?set-current-plot "Trends-of-global-reputation"; \ @- L n u- n
8 z% g* l7 }1 y1 y& }7 V
set-plot-x-range 0 xmax
9 |$ G) [+ J6 v4 \
) g! \- a* ?% L. ]- M+ n Jset-plot-y-range 0.0 ymax. u; E: M- q4 d. O7 A; m% p
end" _' P( D9 a4 u: p
( m% G; S2 w' c6 n: r
to setup-plot3
8 p2 O8 h# `5 Z
1 D" m( p: }* @) D( Hset-current-plot "Trends-of-credibility"
$ d9 H2 `1 k, L# P- h# M! |9 @
% n/ D2 }3 f, M6 g3 j6 Y2 Sset-plot-x-range 0 xmax- @8 q* P A' S/ S: J' o- i
. I* {- a( S9 Y+ r" U$ P; |
set-plot-y-range 0.0 ymax5 l8 Q" G8 [* r* q; q9 ?
end
f# l" ?, c. K* E0 C* C f6 u' S7 i, B% j
to do-plots
( m& T: Y* G4 T! q) l- tset-current-plot "Trends-of-Local-reputation"9 K/ A' H& z; x0 d$ {
set-current-plot-pen "Honest service"; f5 n* ]0 A1 _; [
end
! t* H, ] j6 r$ l: e! c$ } o; T% ^! X5 B( N+ n
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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