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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
; N" a/ n5 s4 W! j5 aglobals[2 X- ?" @+ G4 x3 N Q
xmax
: e, p3 x& Z/ D3 k+ Zymax$ l% R- Q6 `: s4 ~
global-reputation-list
; X4 w' ]" k; n) ~4 o% @4 g8 i7 x3 W; D4 b" X& [
;;每一个turtle的全局声誉都存在此LIST中( E7 I I* i6 p8 A; }5 F1 s
credibility-list
: r$ M1 ?/ [, h$ x, z3 Y;;每一个turtle的评价可信度
( P) e) v( {& {% Y: X! p# ohonest-service/ J( _/ O* b; E5 o z) a2 E/ {
unhonest-service
$ A' O0 ]0 w$ Q4 toscillation; l0 `& Q0 L0 T. U
rand-dynamic u/ M2 ^+ T9 ]9 \ W3 y, q
]8 d$ q6 m6 t2 N# ^$ ^; U& V) o
3 I1 Y& `, S6 Z. J# q9 H8 e5 x" nturtles-own[% E( V2 i3 ?2 b0 _. t1 e
trade-record-all/ p0 X. }- Z5 N5 ?, c- k* ^1 A: B5 k
;;a list of lists,由trade-record-one组成
. X' r6 U3 n' H% m& R( Ptrade-record-one5 _5 `; N1 F; V: o% O4 n* 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
# ]% f8 Y: R9 R; ]5 C% i
1 I: z7 v g B2 z8 |3 M;;[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]]& \8 ?- D+ O; |# |4 u9 h& [0 w4 O& G
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]1 ~3 j1 M! ^' x' a; C, w" {/ }
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) c6 O' W4 N6 p5 U: Z8 q9 t- o
neighbor-total9 n" F9 w: U& V) b, @2 E
;;记录该turtle的邻居节点的数目
/ ?+ {2 g7 F9 ^# K' } D' qtrade-time' G& A+ Q- h% ^2 k, P3 n
;;当前发生交易的turtle的交易时间8 q6 C W7 R, R4 @
appraise-give2 M: S- @; l$ A. G2 i
;;当前发生交易时给出的评价# g8 ~- h2 h* D2 [4 O
appraise-receive
& @8 N |0 D; O* O;;当前发生交易时收到的评价
7 t7 n+ P: O1 i% Oappraise-time! @0 P' t; j1 l
;;当前发生交易时的评价时间. J( `0 Y" M$ Q- I6 |% W
local-reputation-now;;此次交易后相对于对方turtle的局部声誉- c* V' Z5 e9 ^, V7 S/ O7 S
trade-times-total
; w# c9 K, T; F8 V, v; k;;与当前turtle的交易总次数* W1 i% f; C: g( q% A# X$ z9 O
trade-money-total7 Z# f0 e9 o: K( j: M
;;与当前turtle的交易总金额5 Q& D" K) P2 L' X
local-reputation
# O7 [ M2 K7 v# p% ]8 X! ]global-reputation
( s( i! X! G# e/ P. Ocredibility$ j, ]. n' \( e$ W& \. Q
;;评价可信度,每次交易后都需要更新
6 d2 Q# L2 K: \, U9 i; }: s. gcredibility-all
! Q; ^5 w7 ~8 N9 {( g7 x6 Y1 M* C;;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
* }6 j8 J, ~: }) [2 M+ T" Y
5 I- _6 {: D+ n! n' A, W( f- F;;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
7 W! Z) E) E" c. s2 v5 ?credibility-one
5 I& _2 h& D k5 Z- I$ ~, j/ d7 j;;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
0 f2 M9 j# T/ [5 |* k" s6 L' sglobal-proportion1 R" ]. G; S! m0 Y4 c- p( h
customer' z3 K/ `: H4 C, R, G
customer-no
5 b4 q8 n$ J J! j$ l* @5 Utrust-ok
) G, H2 _9 d4 _6 n2 h& ctrade-record-one-len;;trade-record-one的长度7 q M/ c% q& R- }
]
) u9 Q+ W2 {$ I5 ]% \; Z8 m. r& E0 F% `% q8 `
;;setup procedure1 K( W9 M1 `# e7 B
{8 ~2 c$ o- J, |5 Z: y2 Yto setup
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- ~7 ]. z. Y/ J9 B) x) E+ Wca/ G: s q- |4 A2 F$ I* f4 l
m) l6 M2 }6 ~6 Y, \
initialize-settings
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crt people [setup-turtles]( m/ W8 `, w1 m6 o( d
; l7 `0 x5 u$ j7 k+ O S
reset-timer
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poll-class
6 Q9 h1 l8 ^" \1 L8 l4 q# s
0 w: \0 i, o% s5 |7 Xsetup-plots) Z% |+ w& `7 l) I3 @, Q5 c
7 G2 G O8 {# p1 ~3 u( d. T6 Fdo-plots( T' v1 D3 K0 a2 Z
end
* s) f$ w/ k" H& \5 W( a+ P" b/ Q/ x2 l) ?# b! s; z. H- P
to initialize-settings/ r8 e: R/ p# A4 A& V: s
% `. V: H1 E; x- \0 W% d& g8 c$ Eset global-reputation-list []
5 `% [- t/ ?+ Z9 @8 C" N/ ?% f
( S1 M& V- _- w" ]. ~/ r& ?set credibility-list n-values people [0.5]
# ^& {- e; c, ^: }9 u/ J
y3 f6 K% y8 ~set honest-service 0
, g8 f/ m3 }; X$ v! w
o) {" `/ d2 _; Q# ~+ Jset unhonest-service 09 n, u& z9 x2 Z% f7 O0 h( n0 P2 g
' A% Z2 T. o/ N' _! i7 b! zset oscillation 08 S$ L4 o R' A& _, K5 m* p$ \
+ ^7 \* H; a8 X- c7 Yset rand-dynamic 02 J% b' f7 A" w) i* g. j
end
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% S7 ]- l8 f( P5 d0 jto setup-turtles 2 O$ T0 v% ~8 e& L6 O0 F( q
set shape "person"
, m* j S) c4 ^& ksetxy random-xcor random-ycor
# U+ l0 W" o5 t% }, N. U' i& F- zset trade-record-one []
6 V8 J" d3 ~/ T$ |7 i/ q
9 d# g5 V) M: lset trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []# M( _/ `' {6 R3 d9 J* v! h
set credibility-receive []
9 I$ P5 }* W0 v5 I; Q1 K5 Qset local-reputation 0.5' A% A" d1 c8 @! D( A- [
set neighbor-total 0
. _$ k2 R* T# ~$ C& U! h: r1 T! }set trade-times-total 0
4 P/ `7 Q, R) B9 fset trade-money-total 0/ X. J, o; D) {2 g$ K6 H
set customer nobody2 H; _ R7 N/ ?/ Q% ^- _ a3 a& q
set credibility-all n-values people [creat-credibility]5 m- g; [) u' Y: N; l
set credibility n-values people [-1]9 ]! K. U" i4 n. w
get-color3 L7 B- Q7 U3 w
$ o% j0 k4 I/ V% J+ S4 ~8 j+ u
end3 y: X J3 g" M0 g% r% a
# j( [6 }1 P( L% ]
to-report creat-credibility2 h8 A7 A6 ~6 g+ s
report n-values people [0.5]
7 J) \, @! W: W0 ^0 r4 }& C* ]end
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to setup-plots- _/ G3 w. m# Y, P, M9 S
7 @6 m% V9 Z9 _5 L- Dset xmax 30
( N! r* W2 a* A9 @" y' J( Y" e6 |5 _! B1 J5 W
set ymax 1.0# p. p# n& b5 H
7 b. J$ U2 ~7 j; jclear-all-plots- o2 _* k5 |+ `+ \! {, \5 O5 Q, e3 S
1 O1 h/ c7 L, w7 b6 Csetup-plot1
3 A2 `2 }% r4 Z" T% F7 ?0 ]
% c" b9 l- M; H+ [) ~setup-plot2
; ]: j& T3 _5 `0 O1 I7 l
' ^3 ^7 ~4 k' S% jsetup-plot3 S" q! \3 A! t9 i
end$ s0 D- Z8 f. g, Y
2 }, K+ l: A5 m3 t) c
;;run time procedures0 `1 B l" X/ M! T( a# N+ [- h, m" f
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to go
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ask turtles [do-business]- R! H. [( A* B! ?& L G( e: u
end4 `$ y& e; g% ~' y$ i: x4 {
7 a2 Q n4 Z3 `( F& K# ~8 yto do-business
W1 \0 Z3 H) k* |$ b. g0 J' x" l: }# ]! y& ^* l: _& r3 v5 u% F
9 }* _" \. |' P5 g" X- a, b! h/ ~rt random 360$ L3 L8 L7 F" y" N" h: `7 u
. i; L% y+ k7 T" H5 E: Q
fd 1, e- l) e9 D6 d" h$ W" E
5 ]7 P, u+ f" Q7 I- v) J1 e2 \& G
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself D, d! T3 G7 B/ T2 D4 v8 R- ]
/ d* E; F9 r C, Yset [trade-record-one] of self item (([who] of customer) - 1)# n. V$ ]+ p, r5 v# i! Q
[trade-record-all]of self' p. l" M, H) D& m
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self$ M" A8 X- z+ p n$ _, r
( M# s! P2 b, u' G
set [trade-record-one] of customer item (([who] of self) - 1)* c% k, C2 |; N. {6 Z* O! ?. W& e
[trade-record-all]of customer
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3 ?- n+ C* w4 ] P) Zset [trade-record-one-len] of self length [trade-record-one] of self
, X7 j2 p' Z7 d4 p! K/ Y# M8 ~# M
( L7 Z: N. m- y8 |% {7 T$ {. hset trade-record-current( list (timer) (random money-upper-limit))0 r& @ G# M0 i% Y9 ^
- F" `, O/ C" E2 [5 i3 [ask self [do-trust]
, r* P& F; L0 `5 ]$ x# a; w. n5 A;;先求i对j的信任度
; `% O/ Y/ y# d0 i3 j7 A. a! H# g! @. {; v' j. S
if ([trust-ok] of self)
- x& A5 Z' B% `2 O;;根据i对j的信任度来决定是否与j进行交易[
* w; p( h+ C: e7 Oask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself) e- a! }" z9 w7 U8 Y
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[$ s& v6 z4 k' ~. d+ x; A1 b$ i4 p
7 n8 G4 t- e' }2 u) i: J9 ?
do-trade
. i- F3 Y2 r) W, }( X q
9 Z' q/ F' x* ^$ t( Qupdate-credibility-ijl
+ x2 o, ]* z, h
+ ~" q1 G( X$ q. d @+ H! V. v4 a) d$ }update-credibility-list
8 x. ]8 q* B2 Z: X; n8 |4 G7 h2 {. r9 ?% v
$ y- y/ g/ p; Q. {7 R8 Cupdate-global-reputation-list
% T! Z1 L2 H. }, r, v; T: i& I$ P5 ^3 T* M$ k% p! I
poll-class
% [2 F/ N7 W$ B0 l9 a
1 B* d6 n {1 l$ D( fget-color' Z: |6 C# y4 _7 s) `
R7 k8 n% {5 W2 |& M]]
# ?8 |/ ^: p6 T" B3 ^/ [1 h7 W: d% O. Z
;;如果所得的信任度满足条件,则进行交易4 O) E( `' l1 ^- V
0 W3 _3 Y6 D% Q/ x5 X/ X[
; f" }# x$ m: r9 \, O
, M9 u' D K. H3 b7 Irt random 360
) C) l8 c) E6 a% j5 ^. r! f; h" y: L8 s& @9 D6 w* h, G7 Z- b
fd 1+ b( v' a8 a" f7 b* Y& q# N7 W1 a
1 X; y& W' ]1 g: ` q2 O]
6 K y$ }7 W8 P2 \/ M
' k+ b) l8 B' F0 g% _end& T8 c* Z% Z# o
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to do-trust
7 H3 ?/ D" W4 o" E/ }% z oset trust-ok False& k: P- a2 @& L( ]; u
2 j. b7 ?% f& y" E+ B4 U
4 S9 o1 ?6 q8 A$ Z. D
let max-trade-times 0
; X3 p% Q$ l/ W; J/ N/ g2 v$ k, {$ Wforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]% [8 B2 I9 d/ r. v5 x# ?
let max-trade-money 0/ h4 l1 J" v( n+ z: H5 s; ]6 R6 V
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]3 A& D, i) X. P& F
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
" g l1 {( |$ g4 K! _) D
) H) B) u2 e* ?, ], B, D2 A7 a6 ?: O; [, T. W8 a- b
get-global-proportion5 M# ] [2 A4 x& k6 F7 C+ i* m
let trust-value/ e3 }' M9 U" o
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)* O5 R9 \& `. F# @9 l! d3 o0 e7 S R p
if(trust-value > trade-trust-value); V/ ~( I* p' e$ m4 n! d
[set trust-ok true], F' t4 l" X2 u
end7 S3 } n( X& o
# ]1 G% w5 A4 c# Ito get-global-proportion
$ g) O7 Q& p! W9 l' s2 nifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* o/ M) [/ U5 ^( u: M' M) G5 `[set global-proportion 0]0 ^0 [9 m5 X9 c
[let i 0% \! C- S' L8 U0 B- e
let sum-money 06 m9 p% \( C; [% k$ W
while[ i < people]. {! {3 t5 U8 w! r( C* x1 A
[
- C! u& v, p2 a) Yif( length (item i7 u5 u" m0 ^" ?5 c- `3 \
[trade-record-all] of customer) > 3 )) k" u, M% V( j% Y4 ~+ E" c
[
8 m& _1 {8 q7 U9 F6 w9 aset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
^6 W; B5 j( w- ]5 D]
# g2 i* A1 R3 B- X( ^. `0 Y- A]6 Q$ x8 e& z: R3 p2 a* _
let j 0
- Z) R' X( p5 ` q" |5 J$ m, p( v: Klet note 0. y/ o6 Z5 S4 u4 e; {6 y8 J
while[ j < people]/ r/ m- S0 ?3 i2 i
[
) c; J7 `- K( X, n( L: q# tif( length (item i; f9 U. w* M* W
[trade-record-all] of customer) > 3 )2 V6 A e+ g; s! g, @% ~7 b9 v8 {6 z
[: ?* ^0 u" g5 k! G
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)$ v. H/ s* y3 D3 t! ~; D
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
7 ^& \% M% j; J! D. f. n3 G[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
9 E: n( p/ s: b! l9 I]
" r2 a4 x$ q9 w i+ `]/ M; U& ]: B3 H2 n8 _& I, B8 ]- q5 d
set global-proportion note
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end
0 k& B( m6 K8 h& n) o$ d$ S8 |' b3 B8 B* R7 X
to do-trade) U4 @5 w0 n5 n) p7 I9 }) l, L
;;这个过程实际上是给双方作出评价的过程
3 q4 h6 {$ c% G' u9 o$ m) G9 Cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
/ ?: L! K/ t* k+ I+ wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价- B* |: Q6 U# n C+ X3 w
set trade-record-current lput(timer) trade-record-current3 I7 h0 v0 D- G) b8 o6 m* y; j4 Z6 N
;;评价时间
3 v4 m S7 q$ N8 Q, Rask myself [
/ l: ^; p1 I# E0 O) W1 Jupdate-local-reputation
) u4 X* c: I6 b- Tset trade-record-current lput([local-reputation] of myself) trade-record-current
' s! g3 E0 k8 `2 v]( o/ b: H; I" _0 l, a4 n
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself! q, W- ?9 B: K. n
;;将此次交易的记录加入到trade-record-one中
7 W; Q3 z0 W2 x% ?set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)9 R& V. H$ j( p8 Q8 m$ w
let note (item 2 trade-record-current )4 C- j) b. D4 H; O% m4 s4 u
set trade-record-current
4 j" c$ I) G+ o( m4 s- v8 e(replace-item 2 trade-record-current (item 3 trade-record-current))( K: b; [5 h: |( J/ G' H' ~) }
set trade-record-current
+ t3 u! X, B; n$ E(replace-item 3 trade-record-current note)
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& |: S# D/ U1 V8 V( n9 y; n, U& p) k T$ V4 j
ask customer [3 ]* k1 |. i( D: U1 [
update-local-reputation
5 t" e! |+ M3 A. Q( S- u" I0 Yset trade-record-current
* v& p8 k; T# R9 n7 d(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 5 T% U' y& ` I9 I$ Q' f; _9 ~
]1 f& T, Z+ n/ V
# f. D8 E8 j4 g9 C/ [: t9 Q
4 P" z) _: d* S; Z. i' C pset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- V9 r- c! S+ e$ ^9 i7 a" z
" S4 I- k W/ s! yset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
4 u P; m& }# G) T0 h# k* }' Y;;将此次交易的记录加入到customer的trade-record-all中; d2 U) _! E; B5 N* K
end" s- I8 z) g8 J* x! w' S
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to update-local-reputation/ d/ p1 L& z" @4 e7 t
set [trade-record-one-len] of myself length [trade-record-one] of myself
7 c$ c$ P( a) f
9 ?7 Z0 C, Q- R( O L! S2 b% r, x: ?8 Q. ]
;;if [trade-record-one-len] of myself > 3
5 d% o2 U* |: K1 K* V! |( Eupdate-neighbor-total/ \% z0 i( ]! z6 M9 ?& }
;;更新邻居节点的数目,在此进行; T; N& Z. j! o7 [4 {4 e
let i 3
3 b8 D3 d: ?9 Xlet sum-time 03 W: J9 B2 T. N
while[i < [trade-record-one-len] of myself]% G, t' [2 _/ T, Z7 c. ~1 t- y, p
[: I8 f* s& T% \) _
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )) V E2 { p! t5 g0 k/ ~; _
set i2 R u- K3 {' u- i# E: n
( i + 1); W0 {5 B) f S8 L. Q* U
]
u: u, `* r& }% b+ {' \let j 3# d _4 K: A, a' y7 G
let sum-money 0
C# q2 d/ I" Twhile[j < [trade-record-one-len] of myself]
" [1 Q/ a I$ p[4 B0 R0 [, ?% m% ?
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)# e5 e) v( ] \' D' L7 U+ Q
set j
1 z% M! G9 g F5 m( j + 1)
7 ]$ {, q; _ U5 ]6 ~$ K- H5 u]
; M4 b6 X: l6 wlet k 3
. s& R& _/ r% U5 Blet power 0
* R g/ U" N0 m; glet local 0( E. \7 J4 ]& @" K
while [k <[trade-record-one-len] of myself]
5 t! k% h, U' t9 G* _[0 J$ b0 ?. @; L& a1 o5 |
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)
& _* E! o! B$ _, ^& |+ M0 i+ s) `set k (k + 1)3 w: U* n, X! V: p) P2 E" S; i' E
]
n9 X6 C" p9 cset [local-reputation] of myself (local)- p2 Z5 l0 X9 K9 M% h3 K
end- u( V8 _8 ]1 _1 i
; p7 z$ K0 x2 `to update-neighbor-total
: e4 ^ J- n+ w T) l# h* V& x, V: g+ s! l; q2 u2 D3 _
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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k/ O; h$ ?2 ]- h1 D7 l( g( E! y+ Q7 [% n
end
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to update-credibility-ijl
' }6 i. W& w @+ D S4 e4 a: K! q9 s
;;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。
% a0 T" n5 R, O) _6 E. H2 nlet l 05 e# @+ U8 Q: z4 d X0 Q3 i }
while[ l < people ]
3 T% ?% q* ~& I' p% V/ ^8 B( 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
9 f ]4 o$ M+ `1 v; T! w[8 Z2 m# x. ]1 P4 f- u0 ]
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)& U1 `% o! x. P1 `: `
if (trade-record-one-j-l-len > 3)
. S$ O( P @6 A) F' K( h[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 J2 |% d/ }; d4 m: J! G
let i 3
9 o9 y- f! j! v/ U+ \' x, {3 U# {! m. wlet sum-time 0
% w7 r+ U% i7 | p0 U" E4 rwhile[i < trade-record-one-len]% k" S0 r5 _5 ?
[
# {* M/ D ?% U6 l0 ^set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
3 ~& Z6 K0 Y1 ]' c6 uset i
: `: }5 n; }4 q+ u( i + 1), f+ C/ m7 h# t* g# o
]! e+ i4 ?% X2 |. F4 O( \4 S4 w3 @
let credibility-i-j-l 0
! S6 Q6 V6 s7 f! W @;;i评价(j对jl的评价)
5 n) y# r9 a1 w; Tlet j 3
) J/ L0 a* `' ]3 `/ Z Llet k 4
; `3 i1 r) _' _3 {while[j < trade-record-one-len]+ j8 F8 q- q/ v) f l! h
[
/ E9 a z( ?$ W( Z) s1 p3 jwhile [((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
& I2 b# X& @$ H! Dset 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)
+ i- C2 t0 }3 Y' F" I' H6 rset j& Y' T6 j1 y4 j% R* s; a! K
( j + 1)
) h4 w) H) g4 D# F]
+ G" c( y3 E0 g( j2 iset [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 ))6 V1 Y, |- N2 G7 k2 v- a6 y2 P8 z
& X+ O, y& l# S- E2 q- X. t% Y$ |7 x A
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
8 O$ N0 Z4 Z9 B: x# s2 R& J;;及时更新i对l的评价质量的评价
8 G: n& ^& H( y% Mset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]# y% Y8 w5 v0 B; {- {' \" W
set l (l + 1)9 J9 z5 |. c" ?0 i
]6 h5 H3 d+ }, A) {
end! b; Z: h+ P3 A* z
w3 S+ z) ^' G: V
to update-credibility-list8 [ d0 i" T# u- H1 }9 h: O# g
let i 01 U' r) g8 ]% P3 ?2 \% O# |
while[i < people]) u" ^ C8 B, D7 q8 M
[! x* Z9 d1 X' Y& J U
let j 02 C% e Y/ b9 A5 S
let note 01 O% N/ e0 C6 |9 ^1 U# \% U
let k 09 r# `' \) y' X, R! B2 l- Z! }9 U
;;计作出过评价的邻居节点的数目
; a6 o3 |1 K8 T: O8 d% t8 zwhile[j < people]
; k( R1 ?; B+ @1 y- _: R[* l* r: j7 Z% i$ U9 D, E
if (item j( [credibility] of turtle (i + 1)) != -1)" f/ K* q, {. t# T2 i4 s6 Z
;;判断是否给本turtle的评价质量做出过评价的节点
* _2 B# u1 |8 ?[set note (note + item j ([credibility]of turtle (i + 1))), G; ?/ `# z" @% U. T+ h. }
;;*(exp (-(people - 2)))/(people - 2))] H6 q- g g C% [( ]) A1 y
set k (k + 1)/ Y+ v- `7 D( J) i* q5 S. C6 Y3 M
]
& f( _0 V+ J& r( Rset j (j + 1)4 _0 d) r0 Y+ C! Q. y8 c
]5 h3 W2 `' @+ H! P( o: a3 I
set note (note *(exp (- (1 / k)))/ k)
' {" x+ V" I9 L A8 [set credibility-list (replace-item i credibility-list note)4 l( Z# p0 E" D' I8 Y$ n! c
set i (i + 1)
; y. ^. c2 r( b* F# C. y* ]5 ~]! L. K4 G9 C; }
end
6 s+ H* \2 I$ E# ]- ~* c$ r; E
3 l, j! L' z; j& Z% r! p% P2 kto update-global-reputation-list2 M) T( `3 \# _# J* Y* R- y
let j 0
$ m1 h: v" A# U6 Xwhile[j < people]
; D* `8 z9 ?0 h' H3 k" a* y# D[
0 G4 W! H$ q. z/ n7 Y" x/ n, ylet new 0. q! Q5 j, V8 a' W
;;暂存新的一个全局声誉
6 Q; s X' [! | m5 | s' slet i 0# d% s" H2 {3 r4 h! V( K$ U3 e
let sum-money 0
. f0 l# s& P7 K# Alet credibility-money 0
9 x3 p x* l5 [5 ^& owhile [i < people]9 ~# c3 H% Z1 ?# C7 J
[
. z7 S3 O4 Z l$ ]7 \! J+ bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))9 D5 Y. U# \# b3 X5 Z) e$ q
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) ?- z& r0 ~3 T& t. Pset i (i + 1)
& f: `2 Y6 o1 i; f]
2 S& c- t- l0 J. }" L( } w& M( D, p7 O& slet k 0
) U) p7 O0 W7 G, l) }$ hlet new1 05 n$ u# G* q) ~4 N
while [k < people]
; K0 x7 a% i; Z( z: a8 }[4 y5 t7 i2 W7 W6 T
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)
* n( H+ i0 y0 w/ l8 l0 W0 Xset k (k + 1)0 J8 o& R4 P3 g( ^0 B# W2 P
]
0 @# y& o6 g t6 v: Uset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 1 w' n1 ~1 U2 J8 ?: g1 P! x
set global-reputation-list (replace-item j global-reputation-list new)$ U! M; i B! l
set j (j + 1)8 Y( h( b, c% ]
]- v. O' d* G2 q. m' O" F1 H
end* U" W! c( F5 T, U l f3 x
% b. j. v6 U/ v) B E7 w' t* _+ k/ e- x. {
( V7 L2 O' Z/ V6 N/ H3 F0 d6 i
$ B4 n# }/ b' `- l- M Sto get-color
" i0 h1 x; l; Y% K' B6 G5 ~9 L4 Y: Y$ z1 V( t6 ]. t: n
set color blue. Q: _# D! e9 A# l& D
end8 D$ D9 B% u% w9 H
4 b1 P* d# a, O4 b
to poll-class
8 y0 M( v* {2 D8 v# Eend
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. `: p$ q( G2 }5 x0 bto setup-plot1. R# i, H- \+ b
, q# l, ]0 b0 b; }1 G& Xset-current-plot "Trends-of-Local-reputation"
. Y1 S" b9 W5 F! r, u+ d. L/ D: u* `, h
set-plot-x-range 0 xmax7 X* M! {* B1 b$ n- D L& j s
" {5 ~) f/ O2 hset-plot-y-range 0.0 ymax
% }& s# n- |* K( Lend+ m+ }% R( H; |
5 G7 u0 r O- A' O" m8 t
to setup-plot2; \, k" Y2 }0 {
' y* e% F/ L8 ]. h3 E- G
set-current-plot "Trends-of-global-reputation"& |7 z/ ?6 i7 l6 X3 H; I
+ q0 A" d; ^' m) O. J$ [set-plot-x-range 0 xmax
/ G3 J2 f" n+ x8 k0 I: i' J0 _! o% k
set-plot-y-range 0.0 ymax: U1 q) S- |' `5 q- R% w5 F' w
end
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. G8 S9 ^+ {! F sto setup-plot3 z; u0 m% b0 R/ N1 W; z6 Y' A
! d. N: Q7 T7 d1 R
set-current-plot "Trends-of-credibility"' w1 g7 F0 R& T( A& [
3 R- ^; W" J' I4 @
set-plot-x-range 0 xmax
# E6 [6 H2 d5 U. _( r# a
3 | U) K% h. zset-plot-y-range 0.0 ymax' y! b% ?4 N* Z+ t$ ]- o
end
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to do-plots
6 e8 W5 O- S' q z& w" rset-current-plot "Trends-of-Local-reputation"/ w0 \. l# O) P
set-current-plot-pen "Honest service") c9 I. `/ v/ K% p5 x
end$ G5 a5 V& k5 v8 m6 R% h
! a/ C3 g9 P6 t) m1 r& k4 z# Z[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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