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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 `- I. ^* w" `
globals[) Y5 t: U0 k3 `* ]! Y8 f8 o
xmax. ]2 G) I/ {# r
ymax; n X$ ?1 W6 u1 p) @ f
global-reputation-list
; M0 p) V4 U: n2 ]7 P( r3 q- [# y4 t. Q% E" N# H
;;每一个turtle的全局声誉都存在此LIST中) Q8 j4 Z' a3 p e5 [9 X/ C
credibility-list+ H8 l, m4 z( }7 k1 W, ]. a+ }
;;每一个turtle的评价可信度
$ _9 T* o: p" {honest-service# @: ]6 L# |) F4 [0 ]
unhonest-service1 H6 {9 d m% U+ w
oscillation
2 b F1 u; N) Z' ^9 e3 g! I c) hrand-dynamic
+ Y0 c. \; ~) x0 H]
3 s4 {) [8 g/ R' _6 K0 I3 L2 v9 g3 Z" ~/ d4 u; W8 O8 V
turtles-own[
+ W4 J: \$ _$ r5 @0 Ttrade-record-all
$ Z# L0 u* {) X+ g7 [;;a list of lists,由trade-record-one组成
) D3 j* ~* A; e: e0 d2 itrade-record-one
5 L6 [+ t$ h* c8 c9 [6 i& y;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录# C! s% J0 Z( |8 a
* h8 ]# F- E' s
;;[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]]
6 Z+ S% |! M3 h% @- ~1 etrade-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]
# l: R9 y3 w& ecredibility-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
1 R0 h, i7 k8 m/ c5 t+ {6 Dneighbor-total
5 m6 l% m! L& ^;;记录该turtle的邻居节点的数目; o E5 [7 R6 H8 L! g* n4 Q
trade-time
& D7 c/ }; h( I;;当前发生交易的turtle的交易时间& d4 f' r% f( _9 D. V6 H8 S! [8 @/ L( [
appraise-give2 J& Z Y# u; r$ D; L( e
;;当前发生交易时给出的评价
: P! h; c+ L2 |1 ~: `0 n4 X0 uappraise-receive
7 N9 j. y% H% Q( B. Q9 K( i;;当前发生交易时收到的评价
6 y* v. n6 h5 e- F* rappraise-time
" Y8 w5 i. V7 i3 P) p; E;;当前发生交易时的评价时间
1 H5 d5 D4 A) H+ Ulocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
4 j4 u3 h) O$ e" Wtrade-times-total
- C7 t: o/ a5 W+ K9 z! e7 h7 n;;与当前turtle的交易总次数8 y! r |! D' U
trade-money-total
# S: G: C5 J. D5 Q8 s; V6 R) j+ x;;与当前turtle的交易总金额
}3 @6 ^, P5 o7 tlocal-reputation. ?# G/ l7 y8 W8 s" B7 C) n+ y% R
global-reputation
7 o) R; K. d) v& j6 f2 Lcredibility- }, x; M) U9 g1 c4 j/ Z
;;评价可信度,每次交易后都需要更新
+ V3 p- T+ E# @6 _. u; \8 Z8 Ocredibility-all
7 j# H' f- L% f$ U, L, 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% h6 ^% J% c$ D& a4 S
& }' v T; y6 _# U6 E;;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 x! t# f9 O% R- m
credibility-one
$ B3 R i% m; v u, k$ X" T;;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" b9 W! O' x0 T0 B" ~
global-proportion7 l g: C3 ]& ]% C
customer& t% F$ {% ^& ^* s
customer-no4 d( M/ W- m/ O( T
trust-ok
/ O: }/ }# ^6 h# Z5 F$ htrade-record-one-len;;trade-record-one的长度# G: l( d/ C9 e0 {: [
]
" b% n( v7 X% d |4 m) E2 }) W3 O0 n4 g7 y
;;setup procedure
0 M8 r4 T. T& E' x
# N* k; M1 ^* Qto setup b7 Q2 J8 {! B' c; S; C" S2 ^
2 Z2 G2 _5 K- u9 ~/ kca+ e9 Q) }4 U9 G' X: Q/ x
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initialize-settings
/ h! s2 u) J! W) |1 k
! ?, |* \4 J* N, k7 }8 qcrt people [setup-turtles]1 i7 H& z6 \$ Z9 s( l
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reset-timer
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poll-class
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setup-plots
$ @4 t, c3 i, d3 w
# G9 T# `( }/ ?* fdo-plots
3 t0 @, Z3 I1 O3 W. Aend
- k) T: q. f2 B
2 q9 A# \$ |* E q- jto initialize-settings* `: F' R2 M$ Q; Y6 x% v
$ `2 `& ]% h3 n0 i cset global-reputation-list []
2 i1 W: @1 r5 z. N! Y1 F
7 X/ W/ A: ?+ c7 {& o: l, B0 aset credibility-list n-values people [0.5]- d4 G% P% a: M7 V0 p% E" R
) }. k% v/ C$ \: a1 l
set honest-service 06 t" ]5 \/ s' H S7 w5 x
# Z# |1 d; E0 {. R
set unhonest-service 0
$ q$ X1 R1 Y5 v
" C- t! x O7 P j% U. ^' n1 gset oscillation 0* `, y/ r- b2 X$ J7 C4 r0 N$ z3 B- I* g
# I: _3 k. g+ y9 w8 E8 o o" B
set rand-dynamic 0
) P# l- L# k4 _& `9 M5 y, f& vend) m0 h# Y% M% T* {
]1 z# K& K0 J3 jto setup-turtles $ l) [ @/ q3 p
set shape "person"2 q6 o1 d5 k" |% f& B1 u
setxy random-xcor random-ycor3 Z7 X; Q7 i7 O. i$ R8 B$ l
set trade-record-one []
2 |& s( K4 f/ i& q/ u
. v3 S( [) U: }9 O! ^; rset trade-record-all n-values people [(list (? + 1) 0 0)] 0 W; R) d. B. @
: x. J9 f R$ b" [& A, D- w$ oset trade-record-current [], X3 V$ \) C+ a% H* ?6 w0 i
set credibility-receive []3 f! C% e- ^2 g' u
set local-reputation 0.5
. A! A1 F, t9 Y1 pset neighbor-total 0
& z6 L& U8 r, e, y8 D' y) |set trade-times-total 0+ Y" z, x l" ~$ B# Q. I# W, B
set trade-money-total 0
Q z0 g2 v- T: v$ U. E9 g# Lset customer nobody
/ Q0 V7 D, `; \0 s L z( K0 ?set credibility-all n-values people [creat-credibility]
7 q* c2 O. C5 F+ C- n+ yset credibility n-values people [-1]: \/ b0 O& b# i/ M
get-color
# h! A& j: a( n( d' J9 F
: P' ?* p n. ^end
2 [& g1 ^" z! K5 S
1 ?% V+ T7 ^/ W2 i; {' I8 n+ B( B9 S7 Wto-report creat-credibility/ P1 h u$ ?( |- ~7 h+ Q; p$ E+ u
report n-values people [0.5]" } v: ]7 d% q1 n; f, v+ `; c
end
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to setup-plots$ U5 C$ \4 {# u ~
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set xmax 30
& y2 i( G2 Z4 s8 M: m8 G. @& e) h3 s* c5 a. J; T) C9 V1 O$ ?
set ymax 1.0
. c9 U! @* D6 h7 }2 g% Q, M
/ y" m6 @$ A" D* U, {clear-all-plots
0 r, E, U! r0 Y; D& n6 y x2 S5 E# z8 }' S
setup-plot1
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8 v% i$ c1 K; I! Asetup-plot2
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setup-plot3
; W0 d3 F- F9 ~- nend
) ^/ j% ^! w) V8 g
, s) ?2 Q0 y# J; V) K: J8 O;;run time procedures
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to go
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ask turtles [do-business]
) `; z; W; i1 tend) L6 H( X! _- l8 S8 g
/ x9 V. Y/ N. }9 D: Hto do-business ) ^5 M0 {. H" h7 Q9 @; J% `
/ v& b0 \0 e( m! b1 N8 _* K. h% C" |- m. P; U0 t) J) ?( _/ e
rt random 3600 V, d3 O N1 X' ]' X4 n$ o8 D
+ X3 a/ i" Z* Yfd 1) h8 s ]$ b2 P
/ n1 b$ }4 O5 x/ C" R/ c. o
ifelse(other turtles-here != nobody)[
0 z H N, d7 l. a. h* T( Y, j! j. U0 y- _ i8 F+ d) V! H% U& I/ a
set customer one-of other turtles-here
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;; set [customer] of customer myself8 c( c! v/ k4 d1 F) `
+ } |) t% ^) x. _* v5 }0 V
set [trade-record-one] of self item (([who] of customer) - 1)8 {0 o, O2 e8 V) x5 f
[trade-record-all]of self
3 p: J0 h6 i7 ^8 \% c( @;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
/ ?7 _2 k& D z, r6 B$ j L" i( ]3 {- C) I' s5 R3 @, |$ C7 z3 C7 t! D
set [trade-record-one] of customer item (([who] of self) - 1)& q. @/ o: _. n, U) a0 F
[trade-record-all]of customer6 C1 P1 @. k1 z5 n- G
: Y" n1 K% w7 r3 X5 G8 _) z5 X8 d
set [trade-record-one-len] of self length [trade-record-one] of self
2 `, M- @3 x6 N) \( e
6 p9 r' s( g3 B: k. H, ]6 kset trade-record-current( list (timer) (random money-upper-limit)); ^& w7 z! d4 _: i
. \. o+ I5 t3 z- ^
ask self [do-trust]) k7 ^3 z/ `$ Q: ^% n
;;先求i对j的信任度
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if ([trust-ok] of self): Z0 ~0 g" Y( z! j& P
;;根据i对j的信任度来决定是否与j进行交易[
* p- B1 D7 t1 }4 C% f- xask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[' w, z; Q6 x: K+ S; Z% ~ \
* A- \" A3 T# J- ^+ z. z
do-trade; t' @) g; Y, q2 I5 {, p
]8 E( q' q3 W8 O( C& n
update-credibility-ijl
7 q: A5 \8 n: n& F. Z" f
" v: K, m8 n# }. u! Zupdate-credibility-list
: k" U% f. T, R- e$ e. f1 x& O8 ^; X4 D" m8 r' g* _. v$ {
& ?4 V! {, c% [7 k
update-global-reputation-list( [' u' i- \3 G/ u2 Z5 Y" l0 H# Y
; e# [: x* ]! f# {, F) v/ S
poll-class" i/ a0 u# N! V' v* P4 i# O
. m/ q+ ^: @+ L' z, w) M
get-color4 Q/ H* T. n, \5 R0 Q( ^' k, A
6 W5 W8 [+ ]8 W7 ?" J0 r
]]
$ z% [ ~; m' d
7 B- t/ t$ Q) A$ a;;如果所得的信任度满足条件,则进行交易
# G4 B" Z7 h+ C. t' S
- f& }) I& ^: _# O[. t0 r0 [2 |: ]8 M
) x- r n2 Q0 l5 P: e0 s9 ^' b/ |
rt random 360
+ w( _2 Z; J( T0 z+ g! d: U/ I6 {2 P# F/ G4 T& O4 `
fd 1
) a/ i n1 A1 J! i. t$ M: P8 I. K, { A
]- o, U' r$ O( _. N5 R: \% C
8 A0 x( B; f; P: Yend8 k; Q, Z R' y5 V: j
# } Y! _5 H G
to do-trust
( D( @. }; ^+ c8 j5 `) a% G. ?set trust-ok False
[' [( I, _- r) I; E- v( l1 L
9 U0 F1 O" E+ C& ]$ n8 t* Q
8 y! L' W+ k( [8 Qlet max-trade-times 0* N; p, `. `' Z# f5 d+ ^0 k
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ j9 D9 k; z& Q( v) alet max-trade-money 0
4 Q1 z; x9 ^& m$ P; `# Aforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]# c! A$ r1 \" g c |
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
5 F' q, e2 |$ E( ~6 N _, v. h+ F" A4 F6 N
# D7 C3 c/ d# V; N+ Hget-global-proportion, v5 D# q+ c' ^6 R# G5 C0 z: H
let trust-value1 w+ e: V5 U. S" y( ]
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): ^4 O- Q+ H+ w; d
if(trust-value > trade-trust-value)
8 ?+ q6 w0 Z8 K0 w[set trust-ok true]2 L, G2 e ]8 `5 ~! G) b" @
end
# U( F* I9 g3 f5 N: M+ T& `9 w" B; `1 b
to get-global-proportion
: w3 R+ u: t0 }+ [ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
+ K' N9 p; s+ _3 r+ C[set global-proportion 0]; b; _. m; V* v2 u
[let i 0* c, C" j$ H0 }' i$ F
let sum-money 0
4 @: g7 U3 i) _6 M% Lwhile[ i < people]2 s. e- |- b! a% m
[7 g) c4 l, y5 ~4 |
if( length (item i" Q/ _4 n4 a* e$ t; X/ S2 F
[trade-record-all] of customer) > 3 )1 {, B4 d8 `- R# k- n
[
( _4 G/ D b8 S( w+ t/ r& m7 k1 Fset sum-money (sum-money + item 2(item i [trade-record-all] of myself)): G/ ]( L: e/ ^% c
]5 V+ K! [9 J1 ` g
], v2 C5 f; P% ~2 D' }% y
let j 0
( L/ }( q( ^' R5 E) m Y3 {4 rlet note 0+ P+ f. N( x7 q% ]$ W* s) ~
while[ j < people]8 \! J+ L) f3 z9 O3 u. K
[. ]5 Q/ i% Y Q1 `3 v
if( length (item i
7 L/ f# J% w/ m: I8 B' r6 U[trade-record-all] of customer) > 3 )3 U( l" i( v5 z0 P
[
0 {; E! O+ N" [$ @ M) ]ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1) e: H0 f, ?7 [. K( w0 A3 C
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]' W$ E* Z1 ?) B
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]6 Y5 d3 I, Q* [ w( s
]! x7 [* x- I* n9 J' v
]
6 _8 L# Q. m1 s6 Y) A' Gset global-proportion note0 G1 K2 I! g( v# v
]
" y( C7 K. H. d$ b5 Uend
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to do-trade/ `. ]& k9 g# }7 Z
;;这个过程实际上是给双方作出评价的过程2 D+ ?* m$ o' O' g/ i+ _
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# \ b+ N3 q8 Vset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
. T1 `/ e* E3 W3 e# F" J* Hset trade-record-current lput(timer) trade-record-current( h* S- N$ ]" u
;;评价时间
% L- o5 F8 e" ?- | E2 M' Sask myself [6 N2 R# p$ B8 Z: c5 _
update-local-reputation
7 o4 ~& a% }8 W) e3 E; rset trade-record-current lput([local-reputation] of myself) trade-record-current
+ D& r5 @# }: M Q: y]
6 Y1 n3 t- Y' D$ `4 }, O, rset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself( R9 ^% p3 R1 N' z$ V
;;将此次交易的记录加入到trade-record-one中
+ ?5 v% ~/ j1 o* c& G2 kset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
- S- N" j) r' K8 {0 ?8 elet note (item 2 trade-record-current )
?. v9 l) E1 C5 W# d( `set trade-record-current/ n' Y+ `+ n1 u6 ]/ I
(replace-item 2 trade-record-current (item 3 trade-record-current))
* n) a1 V/ a, y' C8 ^set trade-record-current1 P7 X; f* _. S5 _2 ^8 x2 K2 M* p
(replace-item 3 trade-record-current note)
/ U% C# o2 O3 ~* Y# C, W
7 i0 ^( b' y/ j' I, D
! {. s1 b* J) ~+ task customer [
0 r# {$ a4 c8 R7 ` w7 x) J6 m, Cupdate-local-reputation, R0 _/ q2 {* N5 N7 X
set trade-record-current1 O S) W2 l; }/ M3 k) b/ T5 @
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) . T' F. g1 X! R+ W4 l4 H, i0 r2 I, `
]
7 p5 S8 r8 v# e% @2 f. D7 ^- ~! ]; k1 x
# T4 T1 a3 r, D9 p) V: h% I/ vset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer6 A! y- U5 c5 t7 e# l! z3 c$ H" ~
j, d6 ^* N& }* m6 pset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
, G2 V% K6 N3 O, a;;将此次交易的记录加入到customer的trade-record-all中, V/ A' F/ P+ F( G" S
end
$ x4 J# k- j" F$ R/ a1 G! N, ^! Y" d
to update-local-reputation& b; T2 J& M; Q6 E! d I; T
set [trade-record-one-len] of myself length [trade-record-one] of myself+ i- U9 A# R' |' F- C: r2 G/ X
4 o3 E5 f0 Z3 R% {% \) X! l5 D
3 t1 |2 b; t6 M- v# K3 ^;;if [trade-record-one-len] of myself > 3 0 B# f& z. }& s3 _6 o& A
update-neighbor-total
( ]0 |5 q- q+ ~* l+ l;;更新邻居节点的数目,在此进行: d' \7 [9 ]; X* d$ \; B' o
let i 38 _% i' m7 h9 ? W- v- l
let sum-time 0 d K U" [' E- A+ ?1 G
while[i < [trade-record-one-len] of myself]7 @1 L* w) G; R; ]/ d. C8 x
[0 V8 E* X0 h( i; f- e' O4 u
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )1 p* m/ F- B$ K2 \- t! o5 ^
set i
/ c0 |/ S) `# }, i7 r" ]& B2 j* c( i + 1)
5 i9 U$ O6 ]4 I]& [1 N V8 g8 ]
let j 3
3 F( o! T8 |$ _/ w, wlet sum-money 0# T* A) ]/ M- W3 [: E( ]! s6 g& {
while[j < [trade-record-one-len] of myself]2 p* }# l8 o# _3 S0 j
[
$ e8 V& x7 X8 h% \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)
0 `& E7 R+ P. |4 k$ T2 _set j/ d/ O+ U6 s8 d; q: Y0 f V' p
( j + 1)
( e: H. r- B( ?5 w& Z]
) x: s3 i/ R( H3 Dlet k 3
/ M2 G& @3 g5 q3 F: s( mlet power 0
d3 o) b5 W' D+ Slet local 0
3 M. j- K! R9 {2 G( `while [k <[trade-record-one-len] of myself]
& s% v9 c% S$ u9 j5 p0 P[
- }4 |4 r; p$ Y; b% G8 \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)
. ?3 L# a/ [/ s' V1 xset k (k + 1)
5 M& E. z& [' l7 Z* U! N]% y+ m# W$ |0 @ b
set [local-reputation] of myself (local)
& U7 S- i% O' b. D: n# Uend" [3 s' f6 w. b. z, F1 i
+ e" V* _" l8 ?4 Xto update-neighbor-total
8 ?5 N' i8 v8 ]* n+ k5 p: w* M' \* ~1 v2 ~7 M% e
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]3 V8 K5 ?0 M0 `2 z/ v( u s
. Z. g! n3 ]7 C# R/ d. a6 O( W% I6 ~5 g/ D
end" b C# y& l: i' x
& H9 a7 _- W/ N j+ z# F' H( n8 Pto update-credibility-ijl
" w2 v# z5 F8 r0 H, a2 h( r# Y6 u/ ]7 r& l6 j, z
;;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。5 S. {, O6 ^2 B% \& D; f" T
let l 0
# u1 }( A; w% R, `: Q8 {6 Nwhile[ l < people ]: N7 k) [$ `+ d* X4 y [; w6 _
;;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. V8 P6 A2 Z6 Z5 K! G
[
5 h# v) z4 A" v# ?( K+ }4 U. t0 qlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
8 Z) z; u: q7 A* Q' P ?- Aif (trade-record-one-j-l-len > 3)
0 l; R) k( J" w/ g[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
8 Q' l f" w N* T R- {# t# xlet i 3- w2 T6 z! m2 g6 o' w9 N+ F
let sum-time 0
! Z1 N: E4 A! y1 R0 V' s& _; Mwhile[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
4 }& k/ p3 j5 L9 K4 q: @5 Dset i# Z) l2 c8 b& b1 c6 w9 L2 w
( i + 1)8 k1 D! p& h% l E
]+ n2 `0 M6 g" S/ a: ?$ k
let credibility-i-j-l 0
; o, t2 n: `; |2 a/ C;;i评价(j对jl的评价)
5 w: r7 I; a1 { Mlet j 3
1 e0 m' x: A; ~/ P% Llet k 4
. e2 {* _- w. C( i9 k4 a2 U/ Uwhile[j < trade-record-one-len]7 D# l1 X$ @, _7 _1 R
[- D& b' w) ~. R" v' @; z+ y* l @
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
/ E2 H0 W; n 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)
% u. H' t6 b9 M, @( A4 }7 Z tset j
" F" ~. j3 M( `( j + 1)
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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 )), a& H q t! u% Q
' C; T- ?& o8 r. s) }; s" o
5 f- [! \* X. W; E+ d/ ?let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
: b& `: _8 d" L;;及时更新i对l的评价质量的评价$ W, N. V% {: P/ j: ]
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]9 {9 L; W/ ^2 l! S9 l
set l (l + 1)$ A/ h7 }5 e# P0 a" s
]
+ o$ z$ m% z" A9 Cend
1 i$ o/ W8 w. b& o
1 N$ E" t4 ]2 u. E, kto update-credibility-list
( T4 j& H' y# u& W( Xlet i 0* H4 F: v# C* p; P& z
while[i < people]
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+ o. [+ P8 w) @: h3 g9 nlet j 0- r$ }2 |; ~" \0 d% z9 n. g
let note 0
& Q5 ~/ _, O/ Y8 h8 s5 olet k 0
* t |* ?7 c% y;;计作出过评价的邻居节点的数目
1 c( @" N5 N1 [- I5 |. u; _2 E2 rwhile[j < people]: J+ H% W0 ^& V6 n
[
4 C; ]' |. Y" V2 G2 E Aif (item j( [credibility] of turtle (i + 1)) != -1)
( c7 F3 K( l( k/ \; Y% V' Y;;判断是否给本turtle的评价质量做出过评价的节点- G1 o N7 R! k6 K+ A+ F- }* D
[set note (note + item j ([credibility]of turtle (i + 1)))
4 f, M2 i- J; {6 r& q3 o& l;;*(exp (-(people - 2)))/(people - 2))]1 X" V9 t6 | n' M& {7 W+ T8 b
set k (k + 1)* H+ X( l% C9 Y2 w+ X
]
& F" E2 V2 g, `9 Pset j (j + 1)
' t% g O4 Q) X m+ B/ S4 C]
2 E& U7 D [* q/ X) Q1 i3 Zset note (note *(exp (- (1 / k)))/ k)
0 R6 P2 l1 j, Mset credibility-list (replace-item i credibility-list note)# t. t/ l1 p* I2 F
set i (i + 1)
/ `$ I }+ x0 c/ d, V4 b]
9 Q8 X5 H3 ^3 M9 b% p3 e0 Qend
" R5 Q( {3 B ?8 }! i! y7 A7 k- M4 N9 ^* Z6 F8 {' U
to update-global-reputation-list
8 P* R: U6 v4 `let j 0
( ^1 e1 Q# p* g0 n! Kwhile[j < people]
1 a9 Y* {6 i( D& @[5 i3 E6 n9 _* l! N
let new 0, `' ?( U1 O) j1 K5 d
;;暂存新的一个全局声誉
/ ^; |% P" [8 k$ g4 Elet i 0) |9 X/ z$ r; m$ z" o9 H0 F6 B
let sum-money 0
- v) n% W. E h& S' X2 flet credibility-money 0
. F4 X! \0 L+ x! I6 w1 hwhile [i < people]. B* H! [6 r' H, o3 X K1 |1 V
[: i; s3 o& ], P& g
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 {/ T- ~( e' B+ n$ }
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- G" @0 G* L- ?1 z
set i (i + 1)
B \! I: B) |6 j* l0 q: k# ~]
& ^0 U+ Z% x! R0 L3 ^* Ilet k 04 z8 ~0 `. X: C
let new1 0
; Z0 e8 a; B. o' o7 x0 I# H- Jwhile [k < people]
$ B: ~3 M/ \/ C- ?[
. u4 q D J# Y* f* p1 d4 Dset 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)
$ I3 ]/ n \! ^, e$ t. z2 cset k (k + 1)
# n$ n" E/ Y; T' l" u) F, l1 u+ I] D: k. P$ D, i2 _
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) # k5 l# l+ h6 ~3 ?4 q( j6 }1 p
set global-reputation-list (replace-item j global-reputation-list new)" g' O9 H: T: f0 M! @/ x
set j (j + 1)
; a/ t$ ]3 V1 L, c; A]8 ?0 D5 G1 j$ t/ o" r' n0 D1 R' Z
end. s( a0 |- O" r% ?2 a" z' s
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; a% N/ B/ u" d; n+ o' I9 j' a
: R& R/ C- X8 x% G! |3 A- t
to get-color
" ^% D9 w6 |$ w2 |; q8 K" Q/ x# A& B* x8 s
set color blue
$ T6 m1 D, y( x. ]" t" s. d* _7 Oend8 Z; j# v/ W7 E$ K8 G N
( z4 @2 m4 V& {% n) M- ]to poll-class6 A' v4 H1 L" P0 G
end
, ^; ^& G8 e z. E5 |" o3 m5 \% B E t3 }
to setup-plot1
% Z- z. P2 h1 t1 }1 q' Z8 h& q1 L' N: R# p; C9 B) y
set-current-plot "Trends-of-Local-reputation"
I# b7 _2 \$ m0 i% g4 q
% ^* X" t: R# dset-plot-x-range 0 xmax
; g7 R1 t8 v1 {! _: |2 p1 T: \0 v: H5 O$ W( p p1 m
set-plot-y-range 0.0 ymax
( t! H1 j! i% j% D1 Hend3 r# b% m; O3 F1 J5 g, D5 u: S
4 |' z$ i8 o1 N' n0 K, ~3 G1 Cto setup-plot2" p- ?% h/ ?, b+ j/ X7 e( V
* c" Z7 W% u: m7 j& o! ~set-current-plot "Trends-of-global-reputation"
& }3 O9 S3 ]1 t. a) F4 ]: }# S5 \ S* d& v0 }$ O( f* t
set-plot-x-range 0 xmax
& P% v1 p; A% w& P/ K; r
/ l9 N( e+ w5 A, o' E* uset-plot-y-range 0.0 ymax
y9 g+ n0 g( M3 ~5 @. k/ y/ G5 @end
; a% V! K% k2 m5 W ^6 o5 U, b8 ~9 ~
to setup-plot3
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3 o* A* [3 k8 k. fset-current-plot "Trends-of-credibility"
+ T& j d' [8 Q' C# y6 ^: j
4 u0 J9 `" @9 \4 A5 j Zset-plot-x-range 0 xmax% [7 D+ P: ? T) v$ F0 w; y6 o. l
" I4 v! M" ?8 I5 t) [: T, d
set-plot-y-range 0.0 ymax
+ g& g! t3 l% Z8 A( r8 R t- W+ Dend
6 Y6 r! t! c+ o2 J( n5 z+ w) \
6 U# e! s9 Z% U7 P9 j' S# q& {6 bto do-plots
; |" J1 X! n: M+ G) Y% H8 n; oset-current-plot "Trends-of-Local-reputation"
4 f& j% k/ T9 d) p8 h9 d( Rset-current-plot-pen "Honest service"
+ [$ q6 J) ~" F" A# Xend
* r$ b: ^' i. i6 G* _, ?
5 E+ ~% q. Q! e7 R1 m# E4 i[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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