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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
$ R+ T8 ~, o, [2 [+ r( G9 Gglobals[ @) |& w# {4 x ]* N+ w- ]
xmax/ ~' W0 k. R& |$ l; L$ Y9 U
ymax* @6 a% ?! J. R$ J
global-reputation-list
3 L: s$ ~% e3 b+ W1 c9 D, ]9 I U* r( Y
;;每一个turtle的全局声誉都存在此LIST中9 h3 e9 b: O7 @) y0 U
credibility-list* f( P) U' }4 C8 p+ c
;;每一个turtle的评价可信度4 s! S6 V) A$ X, m) J) g) S G
honest-service) X% C" C) n& o- h1 w
unhonest-service
; H1 L* R+ S7 d: \7 _$ Aoscillation( {' Z# u: M& I& ?
rand-dynamic
6 Q, l6 e) r8 s; t" s: N" r$ Q) k7 b]
$ a% j* J/ ~, N! {7 p7 b/ S) l6 k6 Y3 ^$ r5 b8 B+ O. ~: t7 U
turtles-own[$ p& K1 e# g {5 l0 \- D/ U
trade-record-all
& Y( H9 y3 J) O;;a list of lists,由trade-record-one组成
f5 W, w7 t: S, W) X! J1 \8 a* Vtrade-record-one
) d$ t4 N, {7 e3 K" s;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
2 r2 t7 u( E! c, X7 d
4 A) V; [+ N+ S4 C) Z- {" A5 j- Y* K, P;;[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]]
: R% r. Y5 |0 ?$ o& Ftrade-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]
& z7 E# G- f% u9 i2 B9 Scredibility-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 e) {/ K9 P, I, M9 I
neighbor-total
: I9 {# y5 X7 m; G' {3 t;;记录该turtle的邻居节点的数目
/ x2 m' S6 F/ jtrade-time
0 W& G% e. O! R- D;;当前发生交易的turtle的交易时间
9 C" f+ K }* _( m& T- Bappraise-give
! P6 e' F) m$ U;;当前发生交易时给出的评价% f9 u6 u7 B" D- F* O2 B# u$ w3 M
appraise-receive2 J8 J6 t. E0 h' k" A$ u
;;当前发生交易时收到的评价
4 H; Y3 K- i! ^2 }) Dappraise-time
3 }1 ^5 i ~# Z; `! [/ N4 r;;当前发生交易时的评价时间
* r5 J) a% J; z6 v7 c! k- Y: Blocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
% q$ C# _3 Y( f0 G B/ f* Qtrade-times-total
/ Y( Z9 j" Q. U O* D# ]8 B8 W;;与当前turtle的交易总次数! f& a- R; p' D
trade-money-total
5 Y: Y; y* o1 _1 w4 _8 B/ v {;;与当前turtle的交易总金额
$ x: L; v1 ~9 |local-reputation
7 v8 x" K% q: X1 A$ k Zglobal-reputation8 [3 `5 p4 t# h& L& Z+ B3 ^: W
credibility
7 G r8 Y) n5 R8 D7 \( l;;评价可信度,每次交易后都需要更新
, S) v' W+ X: V( ]( @credibility-all! e- q( l0 P& t# \# }
;;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" A- Y7 ~* X- T I
( X" {4 {; Q9 M+ q, ]9 |;;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
8 v& {& H8 q+ ]* ^credibility-one( H, g" |) d! R4 o
;;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" k" S1 t& Q# t" B7 [, B7 s
global-proportion
& D1 S, o5 R) g/ U; u0 _6 J4 Wcustomer
( `+ |3 g/ C; R6 p jcustomer-no
& i: f# _1 J) }" F7 ^: L' Wtrust-ok
8 {2 r+ j( Z/ }, O$ b0 \, Rtrade-record-one-len;;trade-record-one的长度
+ k' e3 P9 I8 H5 m) K]
4 K. d) V: X7 Q0 w& f, c
* k$ \! l6 J8 m7 b7 M @) i& W: N; [;;setup procedure9 i; e7 z8 {! E7 H d
4 J$ \% m4 _3 Q) I# d4 p7 vto setup# T: y0 t+ t* a1 u
5 R# X) L# C4 b. N0 w7 F, `
ca
% {3 x5 K- d! u8 }. x; V+ b2 U& O1 p, I6 f/ x0 j4 f
initialize-settings
+ }* n/ r0 ]1 G8 h8 `
; H& Q5 T4 b. q% e- _4 w) S7 @* Vcrt people [setup-turtles]5 Z% i1 N/ \2 d
4 }+ V$ M6 u" v: _1 X- ^
reset-timer% s, n; o) D; L+ S+ d
3 D3 v! z8 z" ^4 L4 Cpoll-class2 s& H4 b) M+ K2 M4 B
* }0 I7 B( M* y6 q% Y3 H, l4 dsetup-plots- i5 w% L1 z- Q) x5 J# t7 R' U
) Q( J( l2 m+ U1 r6 R- d }
do-plots
6 Z- D. ^5 Z* |2 uend+ [8 w, Y+ f0 m: h+ T6 r; Z3 W
* j6 K2 n( G( G. @0 H! a
to initialize-settings! c& S6 w$ E; p7 o
/ w& @% i; O8 G1 Eset global-reputation-list []
7 F, j9 Z3 F- }' L5 T7 |% S
& r% y$ B$ D Oset credibility-list n-values people [0.5]7 v! y6 d& a7 R- N3 T4 r
6 q( X* W: D: |4 C
set honest-service 0
0 G% h+ \% M) [+ r% K6 Y7 U
" o5 r% i: w% @" sset unhonest-service 0" g- e# i& i3 ]2 Y" C
, F- t. s( ], ~set oscillation 0
9 `6 X* s- l: [1 H
) v; ?, n- E" F7 s; u _set rand-dynamic 0
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# B8 y. z: \7 J8 j! i9 z
to setup-turtles
/ T9 O$ \3 @- |5 r# s! T) ]set shape "person"
7 `& ?* Z* u: Q# j# y+ L9 Vsetxy random-xcor random-ycor$ D4 U7 b5 h( I& x( X: H
set trade-record-one []5 ]* G5 S1 B+ T7 a+ z$ ^
2 ] y, _ R# p; n6 X) C* U' Y
set trade-record-all n-values people [(list (? + 1) 0 0)] ; e/ k7 w6 h$ R1 M) k2 R
" a/ {5 o7 t6 }, O! Y7 ?set trade-record-current []4 t7 K& e4 O! B- O
set credibility-receive []
1 i! Z g7 B; I" \; mset local-reputation 0.5' L: R2 `) @- e b- K: k; ]2 s
set neighbor-total 0$ U# b, O, u5 T* h" O
set trade-times-total 0+ t6 _) L7 u5 R! H) d
set trade-money-total 0
$ `: X+ H( p) v& n' x0 m" E. \9 [set customer nobody
7 r' u* ?* Z8 H+ L& C8 y* C5 ^. uset credibility-all n-values people [creat-credibility]) v$ ~7 i$ n& x l& w
set credibility n-values people [-1]0 H/ i8 }& c- e/ r: B( O" W
get-color
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7 s0 ?( ], v9 J, t; ?% f: }end
- W1 t8 ^3 \+ a; u2 o" S' m; f4 X8 P% l5 g
to-report creat-credibility
3 v1 F7 f) T7 s2 {9 _. ]report n-values people [0.5]
' |9 V! p# V: [8 _* c2 _end
! R3 ]/ g8 \; _
1 ^6 Q4 ~5 P- K% ^) {to setup-plots
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set xmax 30% a7 M2 x. [1 Q# b+ M5 L+ y
E9 a' d: N0 ]3 L9 f# d
set ymax 1.0
7 D1 }6 L( z4 v+ L
) z) [5 \' i* ?' @3 p8 iclear-all-plots
% Q+ i& V9 U3 R. { O/ Q) G
) F' r. A& Y# y8 ]' H6 E3 Ssetup-plot1% j1 C* q* p/ P' W; k& Z4 Y$ y; ~$ G
/ L$ s5 ^0 d) G' g7 C4 n1 ksetup-plot2: H% ^+ N- D5 A
5 z! }( Z K" q- B; Y: v6 v. `( Isetup-plot3
" U/ ~5 D% R( g9 W0 |3 @end
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$ q5 ^3 j6 M! R;;run time procedures
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/ k, O- u: i7 J( v+ Z( _to go: b7 _, a# z) C- o% c2 A
]5 L: A' |$ ^. Y+ f6 _. u+ U1 xask turtles [do-business]* E& S) t4 F! L& T' d
end
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to do-business
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0 x( N, Z6 A) M3 X. k6 ?# n
- C9 k" d( j1 ~7 |% e. U- o$ n: Ert random 3602 J7 O! g6 A+ C+ _
9 o. T9 v+ l" W# y
fd 1
& L) N4 d) t& E8 D9 `3 ?- K& f. S
% i9 z' k0 z& r. j% c. u4 yifelse(other turtles-here != nobody)[
2 g& z F0 e" _2 @3 E
- n( o) t3 _# X7 o- y5 _/ a1 ?- hset customer one-of other turtles-here! _, l( @- m( d5 }9 f+ U: h0 E
8 d1 O8 V) h Z. R) | D
;; set [customer] of customer myself4 ^" N# s; R+ w. M& Y
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set [trade-record-one] of self item (([who] of customer) - 1)
/ T& y. Q: E& t5 F0 U( e[trade-record-all]of self# @4 W( C5 E0 a9 M0 }& Y
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self2 [) o1 Z* s9 V( K
) ?3 x$ A1 D- e9 h$ Y Y, G( hset [trade-record-one] of customer item (([who] of self) - 1)
* d3 x/ ~' }. w[trade-record-all]of customer
- l1 c7 N% f; ]1 O' W4 z6 Z2 B5 A. t2 \. n- c6 J
set [trade-record-one-len] of self length [trade-record-one] of self6 F+ H5 H, s( {" d( ~" Y
& x- O3 p4 L0 @+ ?- ]! o/ D8 [& Vset trade-record-current( list (timer) (random money-upper-limit))" c4 v; d0 R6 M
( g$ } A4 {. f, R
ask self [do-trust]
* |2 g) W. a& |3 t4 g' K' ?: J;;先求i对j的信任度
7 m. ] d+ c6 S7 H7 O7 [ O$ }; N# w3 d
if ([trust-ok] of self)9 A+ q0 l. p! F$ `
;;根据i对j的信任度来决定是否与j进行交易[1 Q5 h1 K" O4 u t. t
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
) m5 g( l' E. X6 g. v6 n1 U. \9 C$ F$ l0 i
[8 r. b, a) s8 o6 g
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do-trade
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" `( D- c, R' `# _1 c4 X2 a: Xupdate-credibility-ijl
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update-credibility-list* E6 i; x; Z! E0 P
: e% H6 a7 _; u+ m2 C
- N% {; {2 S* V3 ?1 Z" Oupdate-global-reputation-list
: y- T. u$ ?, A. j6 B7 ~7 D
, o% i& X/ _' A- Ppoll-class
; R3 N' b+ V: C% Y% v
& s9 {" L; c! F/ E rget-color! v" l8 \& ]9 {3 D" j+ e2 i* z
2 F3 v5 [. t) ~. c, A3 ?3 m. s4 t]]
8 w$ j1 x6 C# [, M' d4 M
' t9 R7 O3 K1 H" A0 d;;如果所得的信任度满足条件,则进行交易
7 Y' _7 k ?1 N. T- H4 d6 n2 ^8 I" c$ K. g: ]1 I* \( ^
[/ P% c* ` U0 a
3 G6 z' m7 S V% q5 X4 h
rt random 360" i! Q c4 v3 C0 k
2 |$ o, q8 G3 ]7 ]fd 13 |( ]8 u2 p: y" M
- e7 Z% D8 b$ g]
/ d/ n6 l( n9 h/ q2 _
2 F% u, ?8 t3 p4 `0 {end
\2 H5 q' v4 l5 X9 B2 f& }: \+ ]# g6 H
to do-trust ( [6 A* S d2 ]6 f5 O" O
set trust-ok False
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8 P: L( E0 \( m' c4 e4 \let max-trade-times 0
- D! A( d9 W1 B% s s2 l0 D5 Xforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]) M4 e! K& d3 H4 e* c8 n
let max-trade-money 07 @) h) k" d. C- r7 \
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
# |* L& [5 D6 h: \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 w. z- L* J$ h7 E) ~, i7 C
# a* d# }0 G ~) J
: E- E( d7 h/ ~get-global-proportion4 s5 v% ^2 f1 J. e
let trust-value
7 L, L: d, k7 _' e* R E* w! S- 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)
6 i$ k0 w: B+ k, n$ K* j$ f% l' Cif(trust-value > trade-trust-value)
- h) q- f. ?5 o( f, k0 ?& c[set trust-ok true] S0 h4 {' A \
end
0 F# u2 t, ]& t: j3 A
( B8 G' \* Y7 Tto get-global-proportion
& q# P5 ?$ ?" { V5 Z8 Jifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
, z) ~/ H3 Y3 Z. h0 q Y[set global-proportion 0]
' k) W$ z1 ?9 b5 v: J! U' _6 N1 X2 r) _[let i 0
$ `* \( y. I3 A* N& e; klet sum-money 0+ @( `2 H) X; e) }0 `
while[ i < people]
* S/ m o1 M7 D5 W[/ _' A8 c h# S
if( length (item i
9 Z5 a9 [9 S w# i[trade-record-all] of customer) > 3 )7 e0 Y8 H4 h! a3 C7 |2 i3 r
[
4 W4 T0 O, D& R$ M7 K) l0 c1 jset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
/ M x) Z2 D& l! u* N! f]
7 [& _$ Z$ W, _0 r( Z+ \]0 k! ^. M* T2 R
let j 0
- e2 Z6 r* S1 T( Llet note 0
' S8 b0 o0 G, W& P9 n8 }while[ j < people]5 W) q5 f. T# k8 D6 T. \ A
[* |" }. |) ], K+ \" h
if( length (item i9 ^0 I; b0 Y- `4 b! c% V
[trade-record-all] of customer) > 3 )7 k7 o) z# r& Z2 h) N# w
[
! y) {/ m0 f4 l& ^ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% }1 K: `- z) W. A! ^$ Q, n[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
1 f' Z' j+ J9 T( m c e[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]0 a/ K. x6 r" J0 z9 |
]
& G5 |0 k5 j% i9 @7 v% }: K! d]3 i9 [3 B- ~* g6 i
set global-proportion note
; G( }$ d% b- D2 D]/ A: L c* U d; G0 H1 T
end
5 w% ^" S2 n! k( l; ^: C
1 {/ G$ l; r& r B1 F- uto do-trade. }: O( B% _; o$ c, f0 G V
;;这个过程实际上是给双方作出评价的过程
8 {, s* G) |% p! G) h8 N1 Z; h. fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价) R0 k3 P6 n: z, d, ?6 @
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
! i1 V9 C" |0 s: x0 L7 p" @set trade-record-current lput(timer) trade-record-current9 L" b6 h" P$ A% M7 V) T; x* o
;;评价时间2 d: d& M9 r; p1 ]' \4 a8 |" \
ask myself [
, `. H' Q+ T' Y$ wupdate-local-reputation
1 Q% F9 n. Z# R ~/ o' {set trade-record-current lput([local-reputation] of myself) trade-record-current
9 s" Q3 _: R# o( T4 D]. a& w) A' M7 z! Z) y3 m
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
0 a4 g# s6 N& y8 @$ G;;将此次交易的记录加入到trade-record-one中
, M2 ?9 M. W. v/ F y* Dset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
% J* K0 d" A. B$ t3 jlet note (item 2 trade-record-current )
) }1 O1 ^4 Y- oset trade-record-current
8 Y4 J, O( O% u2 _3 D. Z9 e(replace-item 2 trade-record-current (item 3 trade-record-current))9 ?8 Q! L6 k, [4 a% f/ ~5 F
set trade-record-current" ]: d k6 U3 R) C7 R+ C# }5 J; x/ D
(replace-item 3 trade-record-current note): G m8 W( x& b, L
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ask customer [! _7 c8 R. c8 g0 f T& @" C/ k7 O) d/ V: \
update-local-reputation* k2 p" n6 |" d7 k7 w1 ]: w
set trade-record-current, V0 s# L7 ~/ o$ g7 V7 E
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) , L% S' |" n1 O1 H
]5 @: o6 ^; `1 S; L
7 }* S0 A( y! Z6 p$ V
- _0 E4 O& r0 \9 G& R* Y" H# |$ |set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer% F* U" G# G, f4 P
! A+ M% J1 s4 p* _
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
. c) `, z7 T0 n+ I0 ^) ?+ {;;将此次交易的记录加入到customer的trade-record-all中
0 [% i: N; r: ?0 |end E- q/ e c% F' r4 U% c3 ~
7 y3 _/ q4 M" d+ R! K8 B1 q5 S
to update-local-reputation
- ?+ x5 K' T4 j& q& sset [trade-record-one-len] of myself length [trade-record-one] of myself# [7 j& ~) |% z; }" ~
; R! {! l" J% L1 Z+ M3 M
1 T8 @, o: L+ d* B, L4 g4 N; i;;if [trade-record-one-len] of myself > 3 . C( _ G( @+ V3 K. w+ I! a0 m
update-neighbor-total' ]- A- y* X3 z5 S# D* X" q8 a
;;更新邻居节点的数目,在此进行0 H7 i7 v- Q& P7 h3 W0 h
let i 33 Y6 Z7 J7 B5 F, S" {7 u+ _$ y0 x
let sum-time 06 {& w; r6 f# j Q4 O7 N E
while[i < [trade-record-one-len] of myself]4 n; h) `. H6 \6 m/ i0 i8 u
[
# x$ ]9 C, H; Y$ [7 C$ V+ y8 ?' bset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
/ r5 o, _3 D" |$ [& J, Bset i z+ A# ]( P) O# e/ n! Q$ F
( i + 1)0 v" O; U0 C+ ?* h1 R+ K$ m: n
]+ c* Z5 j7 ~8 i' A0 y
let j 3+ p6 d" m1 `% v( _9 ]) L$ i, j7 `5 V
let sum-money 0
3 G$ T9 u/ S' p9 a- E* V: jwhile[j < [trade-record-one-len] of myself]
/ {7 S! E0 y% T" D! |3 i' D[5 H* c0 Z8 u3 b4 k4 |# T" v4 _, l
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)
n* R$ ?5 w* R: fset j: B& X6 T) t1 A. J6 ]
( j + 1)9 s5 [$ |0 P( B# W
]
6 i: U+ _% b& D4 O* T% F3 clet k 3
: G" } R1 h4 ?1 _! C6 Q/ t% m3 N1 r- Flet power 0
8 K$ V# ^* T& N5 }# ]: Slet local 0: N: m& y0 A- Y) }2 y
while [k <[trade-record-one-len] of myself]9 F9 P U0 I9 S/ ?( w: L- Z8 q
[
6 f, J* m' S; Uset 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)
# g/ k9 ?, i8 z- {/ u! Z; ]& K" E* Zset k (k + 1). Q1 ^7 w) ^3 h' L( Y! a
]
! ^2 @$ H5 x4 hset [local-reputation] of myself (local)7 w, z) F- O1 C
end
1 ?3 r2 e s* u' N' C9 t
* q( V" }1 v9 e+ Y: Kto update-neighbor-total
/ {0 R: U+ i/ Q6 S" r. ?7 _- A# z2 ]1 H8 q
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]6 S( W( e% K5 `% X3 ]; q3 |, p% i
N8 O Y# v% r9 e6 W, ^
' z" d* q' Y$ J7 z; \end
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to update-credibility-ijl
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) U4 M# x; p9 t9 L( 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。
$ c W' r1 m( X' mlet l 0
. Z/ c9 w1 j' x3 E7 p1 i) Cwhile[ l < people ]3 L- }1 D% O8 L& L7 G& w7 U3 s; @
;;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 u, V" x& l$ Q2 K
[$ H+ u" Y+ e0 {/ }2 M
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
6 N* I/ m- T7 o- f, O0 w% ~% {if (trade-record-one-j-l-len > 3)
$ Y% D1 B! L$ h# i[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
4 @# G( |+ M9 I: @$ E" r8 Q+ W; Xlet i 3! i7 I! u9 e7 b! N
let sum-time 0
7 j x) u/ w- r) |0 f1 p# C+ @while[i < trade-record-one-len]
+ |" L @9 L3 U2 ][
& Y$ w' u" G" \% Z" Dset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )0 {7 k% |; u* z3 _
set i6 C+ g# F' d7 V' z5 e4 l
( i + 1)' b7 d5 R. ^! v1 L" N* |
]
* F; v; D% R) l- W% j" z" k7 O; [2 jlet credibility-i-j-l 06 m6 e0 `- a* h. O* `
;;i评价(j对jl的评价)
- }7 a1 E0 a$ }/ `! clet j 35 ~0 u; ^8 Y6 K" R5 ~1 i
let k 4
6 J8 u& c- r1 n1 {" J( cwhile[j < trade-record-one-len]
* e$ t) y+ q+ w4 T5 U% f1 }' c[
, |; K/ H) Q# p6 @# r/ v/ g. Twhile [((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
3 j/ g5 p' [! H- `* T/ P( hset 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). t& s9 P# W7 s: z$ r) v3 ^
set j
$ P$ A$ s# r5 X4 R( `( y( j + 1)
8 L: ?- t. D$ t' g9 B]
5 S& L% f9 v, P2 j6 fset [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 ))! W, ?! Y- m W6 {- h
; P: r+ f/ B/ u; p: v
7 D6 c& T5 o: I2 D3 T5 A- f% x
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ Y$ y. A& k& S* e5 u;;及时更新i对l的评价质量的评价
% e) d5 o, j( o) k6 B+ |1 i% z. Jset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]; f1 S* T4 F( S1 H' `
set l (l + 1)4 y/ s& V1 `7 J" T& v
]
3 v. ?0 o0 S g2 G/ M" Yend$ F6 p4 |( _. @% P2 h# ^( p _' h
- Z3 B, T) P8 Q0 `' Z; [* jto update-credibility-list
; X7 X( T2 }4 P9 V, \3 glet i 02 k- v8 h( C7 h# H' K
while[i < people]
9 a3 S1 j( R6 A7 A[. a; x* P# }+ l$ l: h- h9 U& K, [5 s
let j 0+ V d/ i T/ V1 x7 {
let note 0& n. d, G! f( s
let k 0
( L2 v6 B& e8 ]0 K0 Q;;计作出过评价的邻居节点的数目
+ B6 D4 G- p1 |while[j < people]3 V& [- b1 c/ }- [$ v& G, ~9 s
[
% u1 J( ?& y2 t5 i5 Y2 z5 j- `if (item j( [credibility] of turtle (i + 1)) != -1)
" P% c! W/ q3 L7 b5 S; y$ c0 E;;判断是否给本turtle的评价质量做出过评价的节点
: F5 A! K( o3 i( v% @[set note (note + item j ([credibility]of turtle (i + 1)))- U$ w, J# J3 N. W, U2 L, x
;;*(exp (-(people - 2)))/(people - 2))]
" S% l* N* P( \# Q- d) {( c1 [/ H1 Q( eset k (k + 1)
9 F9 b& W$ C B b' q2 h& u]
9 j; \, x& s' `3 Gset j (j + 1)
0 M) m7 b; f, L t j% F' ]]
2 h9 s7 j) I% Sset note (note *(exp (- (1 / k)))/ k)$ G( ]$ }' a" S+ e
set credibility-list (replace-item i credibility-list note)# I; M$ |4 [" K5 _8 m/ J9 V
set i (i + 1)2 S! i9 s4 c! O/ Y& u' j
]
. W! _+ L/ T7 u3 \% V0 Nend
# q# m/ I7 \/ W1 J
. M \/ x! @. h2 a* r" oto update-global-reputation-list& f, y% P. q1 ?8 S( f
let j 02 l/ a$ V" O2 E& M' Z A% h' m
while[j < people]5 y% V5 O. G) S7 p. {. ^
[/ A" b7 R- X. ^ b" {
let new 06 P. u9 v5 s: x1 B! e0 \3 _5 x
;;暂存新的一个全局声誉
2 N/ d8 g# {& q. klet i 0% Y" t3 \4 y1 {8 v2 M; h
let sum-money 0
7 `2 T' s6 [! f* T4 n' Ylet credibility-money 0$ Y* n! P7 [2 e: w* `8 T
while [i < people]
% z# u. Q" b b2 G[
! R9 B0 b3 y. ~! Sset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))): ]4 o6 w0 h% h0 L2 \" {
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))* t" ~, n7 i, F( r
set i (i + 1)
! R8 \+ \5 b6 T- g+ Z7 u]4 C( U/ c A7 l: {7 [
let k 0
6 K- U0 _- k+ ^) hlet new1 06 U8 I, u- z1 R1 ^4 k
while [k < people]8 E4 l3 ~: A* W) B; w5 J
[
2 D% {/ e$ Q- K+ |4 G& |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)- Q; z1 a# F6 z) W
set k (k + 1)$ j6 m5 G1 I9 e" y* C) `, H. Q- Q
]
; D0 a! {5 H/ k9 j0 Rset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ `8 `& K/ K) l7 S. wset global-reputation-list (replace-item j global-reputation-list new)3 q1 F. `5 z/ g2 E
set j (j + 1)3 ]( u5 S9 L8 f9 H% k
]
' ~4 h/ N9 ]& m: ]4 G2 m. jend
0 E* q7 e1 D$ l, v; L: Q0 z* _; k( p% V ^( U; w) X! V) s: F
. d) j3 K9 E8 I# O7 h% p9 |* ^3 X* P$ \, j/ U* C
to get-color0 l% }( K; [$ P9 \6 D' v
& L, o% f3 I( M! h! M, v; ?; A3 H& x; a
set color blue$ @: `8 ?$ w! X, G; w2 o
end
6 v; B% |2 v/ X8 O) E- S
. F3 j8 ?* V. K/ e& ?1 m; W" qto poll-class
6 W+ K2 X! [& w& Z! F# cend
4 ]) V3 K' @0 L( ^0 f0 S! q* e0 y! B6 C# {: {/ C2 C
to setup-plot10 P- m% s5 B$ c+ A# I
& f- d3 H" o. j \3 E [& k
set-current-plot "Trends-of-Local-reputation"
* N# x% h1 m$ y% i: ^1 O1 t* O4 y0 V) |' x3 v' J4 g$ C8 t/ c
set-plot-x-range 0 xmax
. L, t E5 U* M8 E6 t% Q
6 ~+ L! j0 m4 R& R0 Eset-plot-y-range 0.0 ymax
) v/ A7 m; t& ~, W { _* s% d4 ^end: }9 ^* x' O& z* v
0 Z( Q, u5 a, t4 y: S. b, J( h
to setup-plot2
' P I6 a# H( F- b. P6 [0 F' G( j# F) ^
set-current-plot "Trends-of-global-reputation": C4 i m- {/ K4 G
6 o# E7 c# P: n0 cset-plot-x-range 0 xmax
6 q S( m. D3 M8 J& N* Y4 q" Z+ U- ]
set-plot-y-range 0.0 ymax
# x8 n* y$ t, r4 j2 M+ X( bend
. P- l. f! J; X" _ Z
2 N% i& `) _0 r3 J8 J2 R4 bto setup-plot36 B8 W8 t! Y$ Z
& l7 m3 A, X+ h1 Kset-current-plot "Trends-of-credibility"
" @" f0 J$ H) j2 [3 s: B# ~9 N3 t- Z1 o! P
set-plot-x-range 0 xmax& C Z# W* C5 ~; y+ p2 q3 V) ?( S, m
2 q! ]( t( [$ [& w1 B5 }, aset-plot-y-range 0.0 ymax5 m0 l- A" _% v# x2 z! p
end
5 n' K% p+ C" d9 h4 ^2 ]& j( ?: B9 [. }
to do-plots
0 o. s9 L5 f( m% r/ t8 S5 H7 I7 q7 Kset-current-plot "Trends-of-Local-reputation"
/ X# e! P4 h3 P" v# A. Hset-current-plot-pen "Honest service"; ]9 u+ c( I$ h0 P& m" Z5 w" j" b+ l
end# d8 O Z" |' |/ V. }* t
7 p: S4 j3 M, ?) ?# ]3 r$ D# B0 \
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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