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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
p/ @8 v( ] O7 w( ^5 Lglobals[
, ~/ ? g; e2 Gxmax( r I0 e' r5 b& {7 D8 C3 |/ m
ymax
9 M7 l2 O# t+ J2 B% jglobal-reputation-list
1 u1 H# @2 s! V& f5 ]0 ~) I- T8 ]- h$ G& t4 G
;;每一个turtle的全局声誉都存在此LIST中
9 _/ _0 }( G+ W, C8 wcredibility-list1 [( B! d! D. O4 A
;;每一个turtle的评价可信度" e: B0 R7 Q+ v) h4 ?5 Y/ ^6 g+ t
honest-service5 @+ p* a4 M, _% Q9 A
unhonest-service
( P& W5 O2 V: u$ ]& v6 Boscillation
) q2 d: Z, ]5 V& Crand-dynamic
, A# _% y0 ~3 k! K]
9 x n* R0 j) h' g
% W* x& ~8 }1 \- Y% w: \. D9 j9 jturtles-own[
) T; U( Y* {4 ltrade-record-all
+ q3 ?9 @' p w- l8 n0 @& W, ];;a list of lists,由trade-record-one组成# f& W4 ]1 B2 I- Z% \1 H2 k- b
trade-record-one# t, U; C8 Y4 q; j: P
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
- i1 D+ c2 b; v& |
# |) h4 b- _0 k;;[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]]
3 ?# W, S; {; F: vtrade-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]. S( f" h9 v, l+ ~ E& t
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list2 }3 v# P0 H: z. Q9 I& _
neighbor-total; u& N% Z r, \ y/ D. @2 t
;;记录该turtle的邻居节点的数目7 s& M& d7 k& n
trade-time X$ Z: y7 M* u6 j& r/ d
;;当前发生交易的turtle的交易时间
, z+ F' L3 I; ~: }! Pappraise-give- x2 W: {5 f# X, M
;;当前发生交易时给出的评价" I6 k% j/ N3 [6 p/ Y* T+ r3 l
appraise-receive
9 Z5 o3 J( `4 r6 Z1 h) m0 O;;当前发生交易时收到的评价
7 v2 t, m/ T. l: a. M) a% jappraise-time |; N$ m+ h$ [
;;当前发生交易时的评价时间
$ h3 J1 \) V6 h# }1 q0 Y4 u1 Rlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉) e0 ^' x- h9 e0 T8 _! H( Q G' z! A
trade-times-total7 Y; I# u% t% X8 m" ?+ z
;;与当前turtle的交易总次数/ s% A& Z0 M* O
trade-money-total
! h( H3 K9 U2 l5 C6 B8 v;;与当前turtle的交易总金额
6 f" y/ p# u/ c- Slocal-reputation. w2 ^1 ?; {- U2 y$ m' n
global-reputation
5 b3 ^9 d0 a( bcredibility& v' ^( }! x1 w" V& y
;;评价可信度,每次交易后都需要更新( ^1 v0 d |+ ~# w* @- h
credibility-all
0 x) E f9 p2 M4 L. X' d;;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# M. S% `3 E/ H6 t- ^2 r
+ b" B/ x0 o, T$ H
;;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& y$ v& J& c' j: N6 d7 _
credibility-one1 h" u, \$ ]# [: Z6 ]! F) i1 Q
;;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) H8 x" ]5 |' z! q1 j
global-proportion
( W# d/ p0 X2 D6 u- p. vcustomer
2 p* ]8 d$ i4 L+ s Ecustomer-no
3 z& o3 `- j0 B$ btrust-ok
& K3 k4 b, u% A6 g9 mtrade-record-one-len;;trade-record-one的长度
: c U" }1 r K7 [% e, n" s& Z1 W]
d; `: z/ g6 K6 _$ I' g7 M6 B+ r& ?/ O9 k
;;setup procedure7 D# b4 Q* b. \; l9 ?4 N
9 o N: M. T" r# C$ f
to setup
/ a7 J- i" n/ a- w- f% ?4 A2 _! \0 C
ca
$ l9 _- E7 ?4 H# `2 y! ^' P1 a! E! W! P4 T( R2 b
initialize-settings, ^9 \2 y, ~' S2 A
- M9 \+ D7 o2 Y
crt people [setup-turtles]
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reset-timer
" }# i; p8 n$ D b& d/ Y, @- n1 S, B1 X3 i* Q. V
poll-class/ a4 S- s' C* ]$ ]' ?
/ @5 C% e3 }2 I
setup-plots$ F$ q, v9 |( P+ t+ b
: z. j" k% t0 o' ], y) Rdo-plots; k0 l' M$ u2 e! D) R1 @. ?8 w
end
9 o: R( U- t$ v- S" R C
% o$ K% \4 D9 l) l [& c, nto initialize-settings4 `3 u, d4 Z* B+ g$ w" |$ [
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set global-reputation-list []
& q, \; ~; n- B! C
. L4 g, `$ i% l! ^% _1 e. N2 F2 }set credibility-list n-values people [0.5]
2 u6 ^0 D; n" ~) {8 B
# V. C2 y& o8 T' k r' aset honest-service 02 z- t* o& O! [1 T8 E9 B
7 o4 p2 }7 _3 V! G& U
set unhonest-service 0
8 A0 F) H* {' I* M8 B/ F
% R* s/ Z: |/ X9 F0 o6 w5 @set oscillation 0& g1 z& |7 F1 Z7 h
6 f: o) @ E* O! D- A$ n
set rand-dynamic 01 k' T4 `: E3 n
end
% L: s; j# d. E1 ]0 q; z, L9 _
! v2 ^/ v0 ~+ C- S0 Xto setup-turtles ' I+ A5 R" z! W% |+ Y
set shape "person"
. p' e# n) @; P( Fsetxy random-xcor random-ycor
0 k& k3 l; z1 D/ Q O1 ^, }set trade-record-one []8 ~. E/ t! T. g: j" e) |
9 N4 |# w5 O8 Y1 G |set trade-record-all n-values people [(list (? + 1) 0 0)] ( X4 {% x* j$ Y, s# W' ~% H- a, X
# s4 x$ W3 X# W
set trade-record-current [], R1 `+ ]+ ]( y- J. p! p V5 h, o
set credibility-receive []- I: P2 {8 W! X, t* w" D( V7 \
set local-reputation 0.5; L" N& r+ K! _! x1 n
set neighbor-total 0 n3 u, ]2 ?( D a2 o+ n0 `: a
set trade-times-total 0. X9 t4 h5 A) b2 _
set trade-money-total 08 d, `: X8 O4 D# ]- d( T( J
set customer nobody
. n1 i! y J8 M. hset credibility-all n-values people [creat-credibility]) J `8 h* u; e
set credibility n-values people [-1]
r* ]! T2 A$ i7 Sget-color0 Q- b9 U% L! |. ]! o2 V
! Z: z- E2 j% N. }8 o" gend3 ^. Q4 d2 C# d) Y Q* ]8 O
3 m& k4 A y. V' c
to-report creat-credibility: N8 @+ g- o. |2 y( I4 v( e
report n-values people [0.5]
9 C# A- s# e6 Z! c4 z# B# _6 jend% X A' L$ K) s6 b3 X% p; R+ {
$ m) ~2 d+ U: i0 `
to setup-plots
/ G% {6 a! U& b5 u+ S! ?* |# m: R' }
set xmax 30
" [; o N4 T$ A4 |+ O7 n- j1 F# Z+ U3 X0 I
set ymax 1.0
" O+ R3 X/ A- K( T
/ w9 S, z* ?$ K0 Q$ [. W/ U8 ^clear-all-plots
0 W) W+ C+ l- c, i' x: A2 M
0 q5 j2 Y" l5 j h: }setup-plot1
, F0 f2 i- Z+ c
5 C. P: @9 J0 M4 g2 [5 G, u- g5 J4 `setup-plot2
0 C, q8 R$ c) _
2 G5 j/ p$ I$ t; U5 j4 usetup-plot3) |6 ?& b5 w+ K2 m9 U( m% a
end
1 t$ W' c' P) E5 k
- c1 w) E! e" e5 x- G;;run time procedures
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' G8 {$ ~' S" W; ^5 } K1 Z4 R; oto go. _1 m9 N0 d5 B
; _# {3 A7 ?) J$ K% s1 Z+ t
ask turtles [do-business]
1 Z0 e/ V# g y% T: K& L" i1 Gend! c6 M7 y7 |1 o
+ n6 [. z) a) r- N' I" ~9 A% uto do-business
* a0 Q4 y5 l8 A5 S/ c% ]: I- L
: g5 U; Z7 d1 M3 c
1 m! M' T8 r1 c9 P Irt random 360: [- c5 e4 h1 D2 e
. t: w& N: f8 W+ Z) \+ {. o& @fd 1
( S3 q4 z* \, F( b9 o; ]% A# A: d( p) {+ D8 ^
ifelse(other turtles-here != nobody)[- U2 \% _* | l3 ]1 y% t
, }6 G. ~. K- E2 W! N
set customer one-of other turtles-here6 i' B' p+ a$ `' S0 L) D8 {' z
3 e7 Q9 x6 ^) l' S9 z
;; set [customer] of customer myself
7 q, V( `& j L a& y7 ~
* O7 A; t$ ~$ F0 J0 Aset [trade-record-one] of self item (([who] of customer) - 1)
8 g4 }0 f6 l8 Q[trade-record-all]of self
9 f4 B0 K' o0 n5 ? B;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self- [/ N% C" U4 i8 @9 U$ R9 @4 l: T
1 ]# q7 v" V& Nset [trade-record-one] of customer item (([who] of self) - 1)2 b1 {' {! ~; A, I5 {
[trade-record-all]of customer- E% U$ J) a$ \
! p; M$ z0 y: e, g0 \$ w$ cset [trade-record-one-len] of self length [trade-record-one] of self
7 u k! `- A7 v7 U1 _/ u x
" V- ~9 C6 y; eset trade-record-current( list (timer) (random money-upper-limit))
' O4 z6 z" [' Z# t Q: g8 ~/ j0 ]# }: b7 n/ P8 J
ask self [do-trust]& H l1 ]( q& u% b- w0 f
;;先求i对j的信任度) i! I% | V% j2 s
) R; p Q, M& _- ^; ~
if ([trust-ok] of self)! P/ C$ |: E+ G+ S7 H
;;根据i对j的信任度来决定是否与j进行交易[
0 R: D3 O& u5 N* Iask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
: E; l+ J3 ?0 r5 A7 W5 o
- Z2 X1 x: V- Y: a6 F# q[) |5 X" k% j; }! o3 I
( e: g: N% |2 t# S1 p ?2 t+ X
do-trade2 W( o; }. Y1 g, K
) }, t/ X2 q/ o
update-credibility-ijl; Y5 L/ y% K, h; `, y( }0 w1 d
7 F3 Q+ u' [+ k' f5 e+ }# T0 Z% Z+ @
update-credibility-list
; ]) w7 {# [% \. T2 Y" d# P0 o* K) y
; q+ E. O1 n E5 p" d: \update-global-reputation-list: _* o3 R' _9 e
8 U+ U" D: S2 Q; s8 D6 ]poll-class
) }7 ^1 W) r, {$ s* D
6 e- S, Q6 \" _" s, C0 \; w2 jget-color
7 T# w( B8 E, e
# Z6 c/ p7 n- Y2 @! @: r& r]]
8 e# F7 }6 D8 u3 m2 }( P9 k
7 [7 \6 B! {+ m, P" r; q- K;;如果所得的信任度满足条件,则进行交易' W5 o9 o p" f# R! t% Z
. X& S p8 f" N a" U[+ h, k' ], v6 s( ?/ W
; \% w7 H7 z s2 U+ [" f% v! Brt random 360( d+ x s7 @4 A: A, g+ a
. K. H4 z, m/ |6 p$ Q J
fd 1
, H p/ K4 v$ m5 D: d) h/ Q4 G8 O+ a
]* ~' i- A2 a0 @; j8 u& t9 P l' y( R. A
1 f3 t7 D! h9 c# q# l* R; s
end7 V. e0 z; m% P$ _3 s
' r& {/ h7 K' T [to do-trust ; F% F U: v [4 ]
set trust-ok False
' `0 ]9 o5 x: G9 f! r, d# e! G/ |0 w$ h9 P$ O
0 N* o* u/ v9 [3 c8 A
let max-trade-times 0
( ~$ A- L5 ]" V7 P6 k) c7 Dforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]. {2 i* I/ n8 G
let max-trade-money 0! D) I3 A2 C( y7 Y; f" |4 ]
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 @9 o2 q; n6 l; L- ]7 Z1 ]: H' w
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
2 z4 j% V8 F+ M7 [8 m, a8 x5 G$ p! T3 o/ W/ _+ E3 k
: X: {% @, V8 _: U e( Pget-global-proportion
# ]$ k! b; J0 W4 Q& e( Klet trust-value
" ?: o) f9 D) o8 p* c0 u# Ilocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
9 ~5 Q0 q$ h# {# gif(trust-value > trade-trust-value)& w* l0 q) U4 L* W6 r
[set trust-ok true]
6 }% T {4 ^! a9 j5 x- V5 Kend
8 {+ k0 E. l0 R2 F
- y0 W) x' x8 ?- k: ^2 j) G, ato get-global-proportion
, f% r/ V* z6 Y Mifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)) o- h9 k$ M- e. n7 X6 r- m' Y
[set global-proportion 0]
/ F; h/ f0 M U+ z[let i 0. [$ c1 U F& w! U% ~. T; _
let sum-money 0% V# ~( g# J/ t& k5 B; U
while[ i < people]; v! q$ o3 F$ ]: E8 s/ \
[
( v" @: W# c+ I5 Hif( length (item i
0 \7 {7 r1 u/ G' v4 E[trade-record-all] of customer) > 3 )6 ]/ j# ]" X0 D$ r D t
[
0 r; q0 \' b1 ^* v8 s& u. `- e0 Pset sum-money (sum-money + item 2(item i [trade-record-all] of myself)). M+ ]. H4 r d3 z: y% J
]; } ~" }) Z6 k8 H* B+ e1 Q
]- i0 w- l" e1 I8 r. z- ?
let j 03 p1 y; j5 j$ i
let note 0
6 f* @+ C9 c, H: Zwhile[ j < people]
5 N* j+ X1 Z, O# P; F) m[: x4 }2 O% X: N+ O& H2 l1 [
if( length (item i- K4 v; I& ?0 ^1 o7 J( r$ ^
[trade-record-all] of customer) > 3 )2 K% {- x+ o- l2 z; }; e$ D
[
1 A' v, Y% @, z8 Oifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! \: I* `" y" Y/ |
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
# h) t6 u- d# {8 g1 y+ }[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
. t5 y# o9 ~0 j+ u \]9 c$ W' u. n7 {6 \/ D: Z& b/ ?% ]
]* G# u' O7 K" ~6 T* v
set global-proportion note
9 L- v% Q8 ~% _# |/ Q5 t( U8 l! ~]
& q+ e$ X( m9 k3 A; pend
0 Q2 ?+ e0 |1 S. k/ h- [( `3 }
# e! D$ \& x' V/ jto do-trade! }0 |: Y$ w u& o- a
;;这个过程实际上是给双方作出评价的过程0 J/ @: c4 y/ y8 _ \
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价( T4 t) y* S; e
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价- w5 V6 c! c- [
set trade-record-current lput(timer) trade-record-current1 ]; q$ z. P3 i, k: C4 K8 w
;;评价时间
* x& U1 ^! c- W7 h/ s2 g6 O- nask myself [
9 ^' S4 X# s# I1 x4 n+ A, Cupdate-local-reputation
7 C: e* @8 N% Z8 L# m R5 Bset trade-record-current lput([local-reputation] of myself) trade-record-current
: l% @! n8 a* i+ x]
6 q2 ?* g& A1 b: B+ Q/ B5 d9 tset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
, {" p% I7 P9 Z" |- u0 H5 ^* p;;将此次交易的记录加入到trade-record-one中
8 q, c2 g" m3 @% `set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 l; H$ d6 |5 _+ |: W# G1 b3 xlet note (item 2 trade-record-current )% r1 e u" L, s# r" M7 Q" P
set trade-record-current; O! m" o4 d- k0 Q; z$ v
(replace-item 2 trade-record-current (item 3 trade-record-current))( A( U8 a9 X5 T1 U( @% }% X; ?3 v
set trade-record-current
7 o( E/ a' \! |8 P(replace-item 3 trade-record-current note)
+ a a) T$ d+ Y7 v$ D( A O. q& b# O+ [0 y! H
) o. w+ f: X/ _7 a
ask customer [
' I6 D& [+ s0 kupdate-local-reputation y8 ]% l6 m, ~8 }+ p
set trade-record-current8 Z& u) L0 {$ h8 w% O
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
7 l. R; p% I2 s) Y0 R4 @4 B4 X]
7 M+ ^$ `# X$ ?6 C3 P2 \& \
4 Y6 x) ~& N+ h- M7 |, X8 ?3 h+ S& X* K6 b8 P& x
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 ~0 b* w: ?+ K' r& V/ l* @2 a d5 O
0 r8 Y4 |+ m4 J# u) K4 Tset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
3 L$ a7 S7 T( _4 r$ s;;将此次交易的记录加入到customer的trade-record-all中
( p- L" n. p4 bend. e l& W" e. j- N' n& y
! @) J+ ~" F2 o7 P( b' z
to update-local-reputation
( |6 q, O9 N1 N7 V6 R, yset [trade-record-one-len] of myself length [trade-record-one] of myself3 u! R, M& S N2 C- K: ^! T9 w
% r$ j8 i2 t, T4 Q( Y/ A9 h5 |: R6 a' n$ t4 Z) B6 }
;;if [trade-record-one-len] of myself > 3 : L$ |* h- p# y" L( }; q+ P' r
update-neighbor-total
I7 l7 g9 T" }; k;;更新邻居节点的数目,在此进行" z' h9 ` ?' V; s R. u; D* X) ]
let i 3
7 h) O- H' n; t5 B: z9 [let sum-time 0
8 p: R+ w( f4 Twhile[i < [trade-record-one-len] of myself]$ E6 z6 Q0 n* f# \/ Y
[- B1 r" V! }: ~0 b
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
, e8 E* k1 y+ ^& B6 Wset i3 Y/ B6 a+ l2 m% k; \* v6 x+ n
( i + 1)$ f8 \1 q8 {9 F2 d! i3 V& H" s" z
]
* d3 G2 e) \+ ?- e6 k4 R; Vlet j 3
3 A6 Z# D: d$ d1 \. Plet sum-money 0
# u" {' Z7 y" qwhile[j < [trade-record-one-len] of myself]
8 h, t: @1 x2 R* J* O# L3 B. @; J& ][0 k2 n) e: h5 ?+ ?$ ]4 W
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)9 l1 a2 J8 d8 }8 P0 [8 h1 y, J3 ~: o
set j
- p4 T9 M, f$ a6 b/ Q: ]& e( j + 1)" V w; U4 n1 e1 K2 E0 Q
]/ N! s; K1 K( }0 n; K# e/ F
let k 3
0 m0 l0 C" [3 Ylet power 0- R4 J b0 l# I. S4 Z5 Y+ C
let local 0$ L; Z' E- n8 j
while [k <[trade-record-one-len] of myself]8 R- O% C7 M! W
[+ Z ]; Q( H0 N$ Q, \5 W7 Y
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) 1 I) }5 @8 \0 d1 R! S9 Y( Q N
set k (k + 1)3 H/ G6 O8 |0 T9 N6 d, s
]
- F' O8 O2 h6 i$ N1 I V5 [set [local-reputation] of myself (local)
+ {- T, p+ `4 U+ Q6 T! r- ?' l% Jend0 U, Q K/ z, |6 F* i. J% x
! {* t _- K, [# K; u) c) ?' i3 N% |
to update-neighbor-total
5 v( H6 [5 ~, U3 B/ T- h: z! C0 _
- }9 V4 O! O- Iif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
1 e) @- K; g8 Q! x, n2 _ \
6 n! H0 l( R; R: |3 L9 y% Z' Z
+ ]! ^1 N* a, {" |. Vend
! R- L7 J7 P" k0 W# p1 y) a, `! C" L; Z n2 ?# [5 m
to update-credibility-ijl 5 x, B. F( ~; i3 @# D
. D4 N6 h' z- j8 R4 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。
9 w3 l7 b3 \8 r$ U1 n% O* _let l 0
& o: D2 h4 o" S& `while[ l < people ]5 `3 G$ M3 Q4 C. |3 F5 B' _
;;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 B( @; Y5 B) i. L
[
, |/ a2 ]( z4 Clet trade-record-one-j-l-len length item l ([trade-record-all] of customer)) C3 M7 v1 A* z' c2 M) f
if (trade-record-one-j-l-len > 3)
+ P- E ~& v3 x1 K4 D: E[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 E, u3 C- J6 y6 @' Y& a* X
let i 3
$ ~& u) S$ h: _, klet sum-time 03 I' u0 D+ y4 X. W# H, F. _
while[i < trade-record-one-len]
* v( Y7 r9 ~ h( s, l0 w[7 \+ w* P: `' W/ l- e" V
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
- W% b c8 ]( P2 J" xset i& q6 U( k6 D9 F K
( i + 1)
1 n2 d! O; U0 C2 K J" [" v]) w1 M+ a& v* r) b: F
let credibility-i-j-l 0
; E& G9 v, z% F5 Q- r# J4 W;;i评价(j对jl的评价)
1 {0 Q1 c( ]8 y) k vlet j 3
2 M% }1 S& |" b# N' d0 v$ `* s# glet k 4 e8 |6 D( ~. g% U! I
while[j < trade-record-one-len]: |* z9 _. V G/ Q# B
[4 j/ c0 x/ N$ }3 J0 f' ~
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
' B' Y$ w+ C, X# g+ Jset 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)
4 U$ z, z0 w1 bset j# B+ |7 F( N7 ]
( j + 1). c7 {# b& ?1 c/ n
]/ I8 ~8 d5 V- |
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 ))# d+ x* R1 O3 \. B' |5 r
0 A0 k: I8 y2 P+ O) p
8 Z! S+ b! Y- O" I
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
" d; |! ?) U: n2 H;;及时更新i对l的评价质量的评价
6 z& |3 L% Z q. Cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
4 e( G) N. S* r/ E$ Jset l (l + 1)
$ [+ U- B( h2 i3 F( p: G% x]- w7 J2 e) r" N! j! y
end
) p8 K/ }! i4 ?- `. A4 |8 {2 U# D* e
to update-credibility-list3 q: a0 A/ N5 m/ N. o( }: }" {
let i 0: U$ k7 w! J/ b& m) S# j
while[i < people]2 e/ p8 h. D; h) H* `- A. @
[
+ v2 h0 t3 D8 J7 J7 m# T) T7 Q" mlet j 02 k: f8 |# ^ L3 y% F& Y
let note 0' W4 A5 G2 P# D& m0 O- j
let k 0& c6 {* J" I1 ~/ S; a
;;计作出过评价的邻居节点的数目
3 g+ I/ P: ]6 C/ L% Ewhile[j < people]) l/ Z) Z: P, R3 w6 T7 z# }+ h# o
[
6 G+ _/ {0 ?& y. b6 ?2 S6 M: Bif (item j( [credibility] of turtle (i + 1)) != -1)
# W/ J# r' c; d9 b3 {4 |;;判断是否给本turtle的评价质量做出过评价的节点
& {. E. K" ?* J ?, O[set note (note + item j ([credibility]of turtle (i + 1)))' K$ k, N% r* X2 T9 H' a/ I
;;*(exp (-(people - 2)))/(people - 2))]
$ M' \1 }( h# q6 C7 E# x* {set k (k + 1)! n& j+ {& h; L ~7 B3 |* q: M- P
]6 b/ P, K" U( r# g/ U& v2 `9 o
set j (j + 1); c7 p* a3 j, Q! V
]5 e1 A- R, L {: v Z' U5 X
set note (note *(exp (- (1 / k)))/ k)( R. W! r7 s- ^( k( U/ y9 A9 u
set credibility-list (replace-item i credibility-list note). Y8 e2 V. g! t; E6 c! E. d0 J- y* R7 I
set i (i + 1)
/ \9 H+ _/ \. b- ?]
4 ^* `' ?4 r4 D6 G/ q6 V1 u7 fend
. J+ T; ~: @) i f- [! U
( z, i V2 ^' i$ G! Mto update-global-reputation-list
8 g4 D( r$ ]: j8 _' q7 `let j 0
2 Y) {4 L/ @: O9 \. jwhile[j < people]4 g! m/ b$ H" L$ K+ }' V
[! P% K9 |7 m3 `5 j% w* b+ N
let new 0) U4 {+ a5 k- J' j8 s1 j
;;暂存新的一个全局声誉' n$ M; Z0 G' `; b7 ]7 ~, c
let i 0' E; b& [+ i! w& A
let sum-money 0
8 ^1 E. a7 o9 d+ y Olet credibility-money 0) }1 K8 r0 j' y+ F& G$ _' o1 Q1 h& W
while [i < people]
' D4 j6 \. u5 I/ k- | S8 u# e[" I: O& ?: I5 v
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
3 n$ K8 |; i9 J* G' z+ lset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))9 @' O1 v: K# c# Q& S% |
set i (i + 1)
& {& I, J6 y. @ M7 q2 R]
) D6 [5 X* B& M$ f8 T& \( L, Tlet k 0* A; ?7 S3 M; f: h: S4 d
let new1 0
! p$ n5 Y% ^5 A: |while [k < people]
6 w7 Y$ O3 t3 V2 ?[1 _2 U* R* q5 j& R' 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)$ F& @0 V# D8 ]
set k (k + 1)
; G$ F2 R- p6 o" S/ d* l+ q]
! {9 i7 D5 A: A0 L2 jset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) + |9 |# A/ Z6 T$ m0 }
set global-reputation-list (replace-item j global-reputation-list new)
" k+ m5 o5 h3 G: D* ]" j2 U( tset j (j + 1)
( _) t) A( t: [0 g& S, L& B) ^], w! k3 [- D, p
end
% y) n9 B6 |4 a6 _+ u/ T% q/ I
- k, ^: @. ?: w' |. h( g
/ _* @" L7 T- N2 u
8 r; S7 @, z; N9 q* I9 |6 w4 Kto get-color, B6 b9 h |5 Y0 i- y# ~
9 M3 |5 h4 X& t# W' X+ Z# p0 Sset color blue8 n/ W3 \0 t+ z6 t7 g/ u# D
end/ F! A/ ~( _1 {0 x% Y1 s
* s( \# W s$ _- l; _3 qto poll-class
0 e7 p; E* @1 C6 w0 Cend
, R: l4 }% g+ H# d/ ?! S8 ^% R' p; t* U4 q$ B1 [
to setup-plot1
3 q7 |9 z4 N* O2 a* E# t7 l( C( H; [
set-current-plot "Trends-of-Local-reputation"
9 ^8 D; `9 K7 R
; R' ^! Q" r% ^$ B5 z: Kset-plot-x-range 0 xmax
7 a* _) K# R% w* q7 h, F4 U; [) n
7 m0 ]( p4 `# ~0 U6 [- q& D" Mset-plot-y-range 0.0 ymax
" q+ B1 n9 G0 W% R' Mend
e& n1 ^4 P8 N- L
% Q6 b4 K) o: s: r7 }to setup-plot23 j5 _7 M* V6 [2 M5 R
; B; x1 D+ W3 Pset-current-plot "Trends-of-global-reputation" ^, p" f* N3 z+ t- B8 _
- v; y9 N: A; i! D2 N4 K6 [
set-plot-x-range 0 xmax2 p) N5 ?# W7 m
! ^+ U' |% W0 G# W
set-plot-y-range 0.0 ymax/ C. u) u* T$ U' b7 Q
end
) \/ M2 ]" j4 |4 }# _ \, P% u" x
: o/ ^1 o9 h2 c* d0 ~. J) }4 [4 fto setup-plot3. {& j1 {8 s1 G; \
: S9 P" |: a4 V* r& \
set-current-plot "Trends-of-credibility"
6 F+ I2 M& i2 l2 {4 N4 R8 s9 ~5 c/ o! |4 f! L
set-plot-x-range 0 xmax, {6 ~, W( x4 b( V! ?: ?
) M4 k6 u! |# z: v1 f7 Vset-plot-y-range 0.0 ymax
1 Z' `8 Q' i0 ^2 }4 k4 bend
; {% T1 X* ]: f" ]) F# S; ?8 s! p
; R' \6 c4 v0 ]/ O" cto do-plots
3 H$ f- P% c/ i" F+ C( m+ M% nset-current-plot "Trends-of-Local-reputation"
5 V- r2 k5 E7 e2 N; Q+ J" Z8 L% kset-current-plot-pen "Honest service"
1 U# {5 z- b+ ?5 @9 m, q2 wend
, K) p$ @+ }$ Y2 u6 V' m" l" A6 P+ I3 K1 F6 J+ N; \( ?$ ]5 j
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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