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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7 S+ o( I' H# Z; W! \6 S" d! ~
globals[& Y5 K& H, B9 X, v8 K4 [/ n
xmax2 d- M- `; C& `: O: Y, c9 I
ymax
5 S9 U1 P, q8 L$ G* h/ \; Xglobal-reputation-list$ m6 y5 L, J& r: |
8 l+ ~% L1 o. D4 S: z8 k
;;每一个turtle的全局声誉都存在此LIST中
- J& R2 |* P5 O. v# e5 D7 ?" |+ Acredibility-list
+ O2 |/ X* r9 C, r v;;每一个turtle的评价可信度) a. i& A9 g1 {2 W8 P" y: O6 j
honest-service
0 A0 {$ Y6 {, i( R+ X6 ~' j- Kunhonest-service# d8 I: F- Z$ w, a6 M* y2 P
oscillation$ { c, M, v3 @; d8 H8 |
rand-dynamic
5 n( `# {; l/ p x( a' w]
- [9 `1 [- N/ [3 k) \/ a5 x- p# I+ l0 o, F2 H7 a( e& q D& B
turtles-own[
% s! s9 u, s" j( {; ^1 u( Vtrade-record-all8 s M- c8 o$ I
;;a list of lists,由trade-record-one组成
6 _4 G8 q6 E3 W5 e2 J; [2 M- d; Ztrade-record-one
* L1 K+ A0 k- @$ Q; T% ~;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录7 }+ f' A0 ^0 b% A
$ B; a! M- e' h) @& F;;[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]]) c7 I2 w) \. 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]
/ l4 n2 P1 T! ?: u. K: jcredibility-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
' c+ k( \/ Y4 Z+ pneighbor-total
6 u& z$ y8 x8 _ I;;记录该turtle的邻居节点的数目$ h/ |! [- [; g3 k
trade-time5 W+ o; v: i& e7 d! _. \
;;当前发生交易的turtle的交易时间
/ k& [: p3 G% Xappraise-give
, Z# W: q$ y( n6 E& M- A0 J1 v;;当前发生交易时给出的评价8 W# m( p L4 } Q1 o
appraise-receive$ H; \. _1 \, g+ Z6 j' F
;;当前发生交易时收到的评价
- F- [/ |5 ~0 z- p3 Mappraise-time
/ i: j4 A) W* O! K, J# S;;当前发生交易时的评价时间" e8 _$ s& A$ a) B6 C' M
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
& c$ }$ r) ]9 `9 }trade-times-total
$ @( {& ], b8 q6 g- c;;与当前turtle的交易总次数; }' l+ f4 A: u6 S- \# O& o
trade-money-total
( v) d6 d! @, d" J3 \;;与当前turtle的交易总金额
1 |* o2 R: p4 a2 [local-reputation$ i- d; N7 F# F! J% ~
global-reputation
2 b+ ~' n+ ` i7 D; bcredibility
7 q* s0 N% \+ l- v4 E;;评价可信度,每次交易后都需要更新
5 B' x9 j: m1 ]& D* lcredibility-all
9 D* N3 M% S$ q& g2 M ];;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
: Y4 Z8 h7 n$ B# a
: Y' }2 _, L+ A# l;;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# a. A1 A2 S2 q* C! u
credibility-one( z" u0 c0 g! Q$ F
;;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# h7 p. A2 s: g5 L8 k3 T! X! x
global-proportion
. F6 h/ `8 q# w+ @" O, hcustomer
; `# V& _" M5 u8 ^5 Kcustomer-no+ U" ?6 h8 {6 v; Q6 L+ q4 s/ w, c
trust-ok' @. \* y2 Q W- K" e: s$ O% o# o& ?/ h
trade-record-one-len;;trade-record-one的长度, s$ f+ x+ [. B- G1 D& s
]8 z) G' N" ~# r! S( C- V
8 r5 x0 E8 t# d
;;setup procedure- F5 g+ F, g1 B6 J% d6 ?; f
( u7 A. z @4 \9 N! u3 r0 {2 K
to setup
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ca. }$ X$ y$ i5 |$ f G- `' B% S
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initialize-settings
4 c1 ?2 _; W" }1 M. ]. l# a+ w: F" w3 H/ i
crt people [setup-turtles]
[- p8 {* M9 |* A2 c% b3 ^# q' E& _ c
reset-timer9 s# { G9 u3 v; B w# e" V8 L. V
* K* B* i0 C6 Tpoll-class( _" C( g ?5 B# |( @
; J8 R! b* W+ Y- [
setup-plots8 V" @. [' L# g$ {
2 q8 G' a' f. \5 @& h. z$ b S0 r
do-plots
# v; ~; ~5 a9 f S7 G# _, s$ jend
$ C4 v; Q H+ z7 f( T( Y2 [4 U: J' W* |$ q# h! B x
to initialize-settings
2 Q6 k" k V# ?1 f! ~
6 \' g: J) S3 |6 q$ yset global-reputation-list []
& p3 F/ n( X, S4 h. ]# _' k/ Z1 z/ `# u' O* ^6 a5 I( G! X
set credibility-list n-values people [0.5] z: d; J$ ]6 P7 [4 ?+ c
. X7 ?% V! v: G' v" z! Y+ H, }0 g0 _
set honest-service 0
$ K; c# \' L2 j% }- {% p# _2 D/ k" O, S. X* j P) K3 G
set unhonest-service 0
. k/ c% r: _ A* S8 `9 q6 G, ]1 P' S2 u. H- p- n3 v' z
set oscillation 0! D0 P7 j( D) [9 N4 i: [8 v+ P
# ?6 P& q/ v, @: Dset rand-dynamic 0
7 U6 u* G$ C: v, kend
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. s5 N* g% ]( h# `" P9 z$ ?to setup-turtles
6 h( y [" a9 j8 Hset shape "person"- H6 Y3 X; y/ r3 z% B
setxy random-xcor random-ycor+ A- h( @, T) D
set trade-record-one [], O8 {& E( |) w+ o+ Z4 b, s, ]8 G
0 m6 D& h& O& `1 vset trade-record-all n-values people [(list (? + 1) 0 0)]
, m; o4 M+ I( U4 }* |0 W! w: y& k
: |3 ~! T+ ] L! v6 Sset trade-record-current []
9 K" ?: R5 f# aset credibility-receive []
`" u* R" L% U+ U1 q6 j d: oset local-reputation 0.5
( p1 S( z' ]! |* X3 o; Z( ~set neighbor-total 0" B( }! N h5 s* }+ Y a
set trade-times-total 0
$ G" |) [" G" ~/ L; {; s8 Xset trade-money-total 0
7 a+ j( U5 _$ F6 i4 W% {set customer nobody- k; m& n) {5 @! Q2 T% J w+ e
set credibility-all n-values people [creat-credibility]
" q# ^+ t/ H8 bset credibility n-values people [-1]
0 A+ w E9 e; ?% \get-color
$ p. H, ? G0 P
' T5 L- S! l5 ]6 x% {end
7 i! R) E8 w! }* z; s
# b3 V. S" g" t, b/ S/ ~4 Xto-report creat-credibility5 W* W: S2 K5 f
report n-values people [0.5]' [6 u2 k. M/ H5 w! P; w: S8 q
end9 ~+ ^9 W7 H, }; _+ _9 P% u; W# j1 p' G
! E/ o$ p& t; F B% ]8 B4 h' zto setup-plots) ^- Q4 m) _4 C6 P0 ]
* F- i" t0 ^$ T& p7 Qset xmax 30+ V6 E/ V+ J) A
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set ymax 1.09 y0 a$ t- k1 t$ N f; a [
" l' f% g' R$ M4 m! i% nclear-all-plots1 q* p4 C9 l" s7 E! {' ^* L6 h
7 A" a2 b! M8 m. [" e. y( D1 B/ Ysetup-plot1/ r4 }* F/ X( g* m, t
5 @& _ q- A! k% a" z3 K$ k- ]
setup-plot2
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setup-plot3
0 G5 W5 w( j ?7 K/ w( b9 rend
3 T9 r4 L2 z |; v& W4 y( `% s! r* q. t7 a c
;;run time procedures3 o% ^1 G% H& @+ w
/ C) D' I' X; u6 Y2 gto go
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# }* G3 e2 s% d0 V0 E- J" R7 Bask turtles [do-business]
/ J8 b( l$ W+ ~1 Q# {6 cend
8 V7 S+ r8 u" h4 v3 I# D$ H4 G) V2 s* B, z& E( Z; j
to do-business
# v5 Q0 f v# l+ e! [( C: q2 v9 F2 n, \- ]: f; V
' z h+ p$ O( [' {5 y' ~
rt random 360: ^; J. O. E( b! Q9 `7 c
8 z) \. N) |5 a# m
fd 1. P. t% A; k1 Z5 R
5 I e, l2 J4 x+ v1 K- xifelse(other turtles-here != nobody)[& c* S; |8 E( D3 j
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set customer one-of other turtles-here
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, Q; W# C G; \;; set [customer] of customer myself* Y# D0 _7 K: R: r A4 R
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set [trade-record-one] of self item (([who] of customer) - 1)
4 C5 |0 X" R/ v, ?( p[trade-record-all]of self+ b: v8 q5 [, l8 R, \) {$ x& o
;;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)% k5 t0 L4 y5 g( \7 s
[trade-record-all]of customer
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4 _$ A! m4 [" w* G6 c1 J' _set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]6 g$ ?; ~- V9 Q1 m) p! s
;;先求i对j的信任度
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if ([trust-ok] of self)' _7 O& s, B9 b5 \, [2 D& M
;;根据i对j的信任度来决定是否与j进行交易[! S9 ^ Q* G4 R5 {0 K9 z
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
: k; F' t/ c8 F! d" O' K5 L5 G5 f, g9 e) }
[# `/ D" H4 X$ `1 c
+ H$ V K: D3 }/ ?4 m7 P
do-trade* n' I/ e8 {3 H' L4 v& E
4 H# ^- m+ n+ B: W+ u9 F
update-credibility-ijl! Y! S- r% ^2 E) C* i3 C( T
/ w" W+ F! _/ U- ^6 s* M
update-credibility-list1 p8 R/ B6 {9 V/ T, @
0 c+ Z; P0 H: {( N
3 Z4 S- z3 Q: s( s* v9 Aupdate-global-reputation-list
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9 I% E: K/ q+ e, c3 F4 _) ?! bpoll-class( B. U4 t: `; p2 F+ j0 a, q) b
+ m, F3 |1 d9 j0 ]
get-color
}1 d6 w$ Z8 b- ]
0 ~6 q& f& i6 Z; R$ p1 { G k]]" W a9 y$ p# p9 X
S) u1 I2 o1 J, M' D3 h, Q6 g;;如果所得的信任度满足条件,则进行交易/ N: v& U8 {' |- j! Z
: G! ?( j1 o9 ^4 q8 Q[
% r( V% ?# `/ z( N( L1 M% K
9 y, m, e6 v2 _0 ]# Jrt random 360
' z' Q* {; A& ]0 C
$ G( K; }# R/ E, Q7 wfd 1+ J( t' k# S& U. f
1 y& n# D! ^2 ]8 M* _
]( Y+ I# X7 Z# B6 `$ D7 q
% ]! x! V; `; W3 z s
end
, }! `8 j g( h; _5 D; |8 G: [1 `8 [
+ W* B1 q# F1 M1 V: yto do-trust
7 g6 j2 Y+ n8 v9 k0 bset trust-ok False- S8 @0 D) \. N
4 t( V- g; p" A! B' y: @% E0 ^) B: s
5 [* g6 @) G- e
let max-trade-times 01 ]9 [9 K1 ]/ N9 \0 W( h
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: C) p+ \: \: m9 E2 r8 d& p: n1 g) K
let max-trade-money 0( h- K3 x$ f H1 f( j0 L
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]% i. I) b- s$ i! Q$ Y$ b
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))9 [3 p, a) p9 `9 J o7 b9 p" b
+ M, m4 L4 f& p( f8 v
% g+ N: `) h9 d1 @+ J
get-global-proportion7 M4 H H/ X2 T' Z5 d P9 m* R
let trust-value b- R9 E& D0 d6 b
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)
: R; K' Q6 x5 B. m/ bif(trust-value > trade-trust-value)
4 f6 ^7 W1 A- U) |, i \1 _! S[set trust-ok true]
v# V5 c9 C2 x+ [6 O1 A3 P0 Hend' g/ i. Z& o( z! w0 P
w" h: i* \7 n! a: fto get-global-proportion
; q* e' A# O# c, _7 pifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)+ a( D& K) h; E4 S2 R7 L
[set global-proportion 0]
/ H8 g3 c3 `( l+ W/ o% P1 ?( @ B[let i 03 L1 @; l2 f4 p/ c
let sum-money 0
" N! @* t S. b; Twhile[ i < people]
* d4 Y1 P: \4 c5 e* |$ H' u! w0 U[
k8 n1 a1 ^2 O3 |5 K2 } xif( length (item i
" x9 y' e) A% v[trade-record-all] of customer) > 3 )1 S5 w2 W/ v7 W1 \
[2 D! j! V: s7 A Q
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
) n1 f+ L! n: a @- c' N2 x]
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let j 0/ |8 Y. ^: e- B. i
let note 0. Q) N& L0 v) [, l6 G
while[ j < people]
3 T. S* g# j- V[5 w* y! ], w- L8 b( F
if( length (item i6 \# q7 r& d1 i4 A1 z
[trade-record-all] of customer) > 3 ); u* w5 o* Z: e7 v' C* h. x# V
[5 q( C1 Q0 i; `8 f/ [3 n7 x
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1). N" R0 T; Y |4 H) I
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 P7 p* M* U6 }8 ~$ ]+ n% B
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
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]. U7 Y+ L4 [0 l4 \
set global-proportion note
z6 O( z8 w* l2 \. Z]
! W% b- e$ B1 o: G- U9 Rend8 U; q) ~: }' u7 g2 W* m
% S/ x% C4 D3 G- k* _% f; B
to do-trade2 ~1 U ]% C; b0 |
;;这个过程实际上是给双方作出评价的过程/ i: g0 [" Q5 ?# {) |3 o) I, |& e2 w
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
9 K% X# Q" C- ^set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# ~8 O% x" A5 q; S. Q8 v* a$ x# i4 h
set trade-record-current lput(timer) trade-record-current$ C/ Q3 W6 ~4 W6 U# P4 A
;;评价时间7 q" `* O- T, {" M- {8 A' E, N* a
ask myself [$ F' I P, U& s) `+ L) ~" M4 H" j
update-local-reputation; e4 k0 K+ Y) a7 A1 f
set trade-record-current lput([local-reputation] of myself) trade-record-current! \+ V" h L5 `& \/ f
]
9 U" j% h3 s1 a$ V; J7 f6 }set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself4 E5 A& \9 o+ K* j# J
;;将此次交易的记录加入到trade-record-one中
' [& H- j! y9 Z* c7 D$ Iset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself); v, `, y# ?. o' D D
let note (item 2 trade-record-current )
* A% P; F3 Z; a% G( ~- X9 F6 `set trade-record-current
) f# K2 l7 u. n6 i& z8 K(replace-item 2 trade-record-current (item 3 trade-record-current))2 v8 {2 c8 I+ W
set trade-record-current
2 a7 {2 [* K3 ?+ O& e) y5 {& I(replace-item 3 trade-record-current note)7 H; U8 Y6 x, z) }1 X
0 C0 D+ W, Q8 y( d
* m( q% \ ]/ w9 O! K
ask customer [
) d Y6 G; J" X3 E' Mupdate-local-reputation
7 }- J. E: N; Y* l' Q% qset trade-record-current8 Y( d( V( r- h) U/ k5 k" J
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) & U5 N$ S, \) g( o
]) g& C4 K, s& K( k# I8 c; S* _
2 e% C' g. J$ F6 X: l+ S; \
$ }! j# ]4 ~! i
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 Y* Z5 J4 } E/ h& @1 `
* \- M7 Z! H- l& s* D6 _3 _set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))# Q/ X8 |: ]% @* f2 Z+ _
;;将此次交易的记录加入到customer的trade-record-all中
* U2 j) T' i: r7 L) D. J7 Qend
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to update-local-reputation
' s, |1 u+ y) A2 Y3 Rset [trade-record-one-len] of myself length [trade-record-one] of myself* b+ G. A2 V2 ^7 A2 ?8 b5 D
& Y) m" Y3 @0 b5 _" b
2 u7 X9 H1 X9 Q9 ?: y3 k;;if [trade-record-one-len] of myself > 3
3 y) `3 F8 c6 d7 C+ rupdate-neighbor-total3 J0 w2 `! o h' ~! M, Y
;;更新邻居节点的数目,在此进行* z) N6 W% k, ]* f: A7 o
let i 3
7 a) D2 b4 t) t6 h7 F* Wlet sum-time 0
. J: S5 e& |: @7 L: Zwhile[i < [trade-record-one-len] of myself]
- D6 D8 Z& j6 f2 a[
* j/ Z- N9 L6 v) E; O) E5 u9 Pset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
- E. z: n6 \6 }* }/ Fset i! S1 R5 {1 Z% p! w+ Y
( i + 1)
4 q+ _3 y# u) p1 _6 F9 V]4 d1 W0 g% V/ p ?
let j 3
$ h0 d9 g u; Z2 L, Olet sum-money 0
* P9 ~9 b1 I! g8 ]7 J9 \while[j < [trade-record-one-len] of myself]
/ x2 W" g2 Z o+ m2 [[
0 \, B' ~% h C& R! I4 ~2 Rset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
! z6 j6 O' u2 |7 O! iset j
! w7 S" J! K) m) V( j + 1): J4 w# s. p, C( Y+ d+ ~1 h
]6 X0 N8 a Z/ u5 u7 }5 a
let k 3! Q- }; c; C+ ^/ E3 B, ~
let power 0
' @8 ]& W K: A- Zlet local 0
. r( f# G$ z) X6 B+ C6 F; g+ qwhile [k <[trade-record-one-len] of myself]
; A( D/ V% z3 r2 i: Q/ _[0 Y6 u ]9 L( E* W6 u
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) 8 Z6 i8 \8 W, \5 o& f7 n9 o
set k (k + 1)" K9 _+ k& J4 C: Q1 }
]
3 l" i9 P+ k+ lset [local-reputation] of myself (local)8 a' M$ H0 M5 P, W+ o
end: b8 ~4 z$ Z+ \; a5 u f* ~
9 E( \/ i- ^' R0 }to update-neighbor-total+ r* n1 s2 y0 E
5 R1 T2 ?. i) s/ f
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
" x/ s- w Y8 H# |; R
5 V5 J `6 Q# h$ Y+ Z( p* V: t& x5 I. j) c' U/ ~
end
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to update-credibility-ijl
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;;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。
7 ^' k+ J: ~: t' ]: ]let l 0' t9 F- m4 _. M z5 d. [
while[ l < people ]9 F3 L. X% @6 |8 z4 X4 I) z8 A
;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% s; M H! B% k- z) c1 \if (trade-record-one-j-l-len > 3)
& S0 D0 _9 \1 f) |; R9 ^[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$ D5 S3 \& m! h; y, ]5 Z
let i 3
. o( ^- B g. g" v0 plet sum-time 0
! O, K0 b( i/ W5 n# M, G( Z/ ?while[i < trade-record-one-len]1 }& X( [: R9 ]# Q) `" X
[
+ ` m, q$ D$ D' F; V# J4 U& bset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
8 c- ~; ^ I' B' j- u- Hset i
% l h+ h. e) v3 c2 n6 U( i + 1)( n1 q1 ^! C! L" m6 w7 [! ]
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let credibility-i-j-l 0
& N ?9 u3 [) m9 _% j8 x( D3 |;;i评价(j对jl的评价)
- T: \' C9 o* wlet j 30 Q0 K! E4 G) _7 S& G
let k 4
3 V8 N9 l; }2 t1 k: K5 P7 ywhile[j < trade-record-one-len]
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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$ N$ d( T: l+ r4 p2 Y) x
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): N# Q+ U% h- @" ?; P8 t
set j# y, \5 R- Y$ l! J. U7 e5 k
( j + 1)5 ^' i8 C. V" l) K9 p
]
: }' U% z6 o f* Dset [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 ))
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
; Y8 l2 n5 t6 D3 g0 z;;及时更新i对l的评价质量的评价0 E$ {) j7 z$ Q3 p' j; _# p# d
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]5 I" F, a9 s% X f$ f! x
set l (l + 1)
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/ F$ h! R: O: U! c2 send$ J% B; u; Q/ m2 A
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to update-credibility-list
/ W, h: k5 S& E& o9 `let i 0
! N! j) s; }$ Q9 I/ Dwhile[i < people]6 j- j# ?! e7 V/ m9 T
[) e" A2 N' u" H3 e1 ^/ s5 i+ [
let j 04 [9 @& C8 x, R* Y5 C# h
let note 07 R1 I# L7 ^. E' o
let k 0
3 x( E. _, p. E9 _! o;;计作出过评价的邻居节点的数目/ r9 `. s/ v l: L: C3 l6 l
while[j < people]
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if (item j( [credibility] of turtle (i + 1)) != -1)
$ ?) K7 f# y7 Y: w0 g% Q% X ];;判断是否给本turtle的评价质量做出过评价的节点4 S+ C' ` u* V R" r6 v( V# |& q
[set note (note + item j ([credibility]of turtle (i + 1)))
: n7 Z `: a& Y$ ]9 c$ k Q r;;*(exp (-(people - 2)))/(people - 2))]$ E( f$ v) k# G+ r- f
set k (k + 1)
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2 q9 l; i, c9 F. Z, G+ T( Y; r7 Pset j (j + 1)8 f" ]6 l0 Q. M$ A- a& M
]# x# U2 Q6 `5 Y/ L, ]
set note (note *(exp (- (1 / k)))/ k)) `0 v* @) X3 {7 s
set credibility-list (replace-item i credibility-list note)
5 b( o" c' L, o: eset i (i + 1)
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end1 s" \" v' \# J" j+ V
; F0 |7 R# U: O( k% Rto update-global-reputation-list
, `! D6 m$ M! \$ Y4 R; T/ flet j 0
0 |3 c) H/ H/ g1 S8 W( f( W) ywhile[j < people]" h0 F5 [) r K. w6 B- r+ a
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let new 0' L; a% M- ]' v$ w/ f% j
;;暂存新的一个全局声誉
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let sum-money 0
& d9 B. e, [. C9 c$ Dlet credibility-money 0
* p7 x; P, [" ~: Hwhile [i < people]( }+ i2 P( z% ^- ^/ }" I- z# W# a
[3 Z" d7 h7 A, m
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
* ^. g! `7 }% g, x, `set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
- W/ t, ^- y8 ^8 y4 Pset i (i + 1)
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let k 04 r9 _- P/ V. x$ T* S
let new1 00 Z- q, T$ g1 _5 g% Q# [" E
while [k < people]
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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)
5 A; o* F+ W7 ~9 l N- Uset k (k + 1)& L" z0 Z+ q" f7 S5 v8 `
]
" w! X9 |: s' g* J1 H% }% Qset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) : g$ q, L1 Y$ k6 o( x
set global-reputation-list (replace-item j global-reputation-list new)' h. U. B6 B+ l$ e7 }6 ~" H2 x( V
set j (j + 1)8 h* u: K4 @' f: C5 U+ y
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end
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to get-color
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: o$ @/ ^1 d2 C! Kset color blue" `, |2 x4 l5 ^7 O. w( L4 \. Y
end
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- X% j! X7 L0 f* E' Eto poll-class$ Y: }1 E: T. k4 v/ P
end& ^' O. A: M9 u
1 R2 j1 [ G5 _3 q/ U5 M4 z) ato setup-plot15 R9 N+ F l# g, k1 |: i8 `/ o
' c; {3 E+ m( s- F$ Zset-current-plot "Trends-of-Local-reputation"
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Q2 E V' B, G' r) Z% B" [set-plot-x-range 0 xmax; K- K0 P+ D1 c8 x8 Z
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set-plot-y-range 0.0 ymax+ Q; V+ C0 P, U# R
end' z1 |1 ~, \8 `+ \9 E1 @! o
$ j, X' C! e* Y' `* Wto setup-plot2' ?4 i- h3 w8 }! ^. S5 A
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set-current-plot "Trends-of-global-reputation"
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) C. u+ k# t; E+ Mset-plot-x-range 0 xmax4 S: }, I( X/ U- I$ O7 |" G
6 \$ d. T+ @: G; ]# j9 l3 `" }. iset-plot-y-range 0.0 ymax+ Q1 F% M3 j5 Z" t% f$ V) ?
end5 p$ P: g; q5 Z6 X0 g" J2 l
; O5 q- t9 Z h9 Y4 b+ lto setup-plot3
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( \3 @8 t- ~# ?$ m" L6 yset-current-plot "Trends-of-credibility"$ A2 Z$ w' M4 X. g* x
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set-plot-x-range 0 xmax( t. t& W2 c( P7 ~
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set-plot-y-range 0.0 ymax
! J9 j" u5 z) Y. ]end* J; B0 Z9 J f1 Q7 k k$ ?
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to do-plots
& t. I% \, n: ~6 G8 q% [, Yset-current-plot "Trends-of-Local-reputation"5 q! U. n7 m. _0 z6 e1 Q
set-current-plot-pen "Honest service"0 G2 F7 j' D( U3 M/ o6 G7 K
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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