|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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
; B, s4 o, t7 U9 f' g- A6 dglobals[
9 q) |8 W1 G5 m, `4 c; j% R* ixmax
3 P, J4 \) w5 }. O, w: Mymax2 }3 D. h/ n7 A, d) j5 l3 K
global-reputation-list/ F4 N* N9 ^$ \' R
+ f/ E$ I" A; f0 A+ p
;;每一个turtle的全局声誉都存在此LIST中: ^! c+ g8 {6 @
credibility-list
8 {+ V/ Q; _' M2 {;;每一个turtle的评价可信度% p" Y% s9 U$ q( `/ k" B
honest-service
8 h* \4 l! @- f7 z1 s9 wunhonest-service
0 B0 }. ^! W+ v3 V/ M. F5 ~2 Uoscillation7 s; L0 T% E5 Y" A- a8 L
rand-dynamic
( v" \3 @2 H- w]3 k! [' e! S; ~8 R$ `* w4 |
% o1 x& q) I% t1 [+ o/ C
turtles-own[ G" `+ f: `% o. a& j N
trade-record-all
7 {4 e& p* y" R. l0 A" q: S;;a list of lists,由trade-record-one组成' Y5 Q9 r# [) j, Y( \& P
trade-record-one. M5 A! O3 i8 W9 A
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
8 @9 R1 |: j) G: J% O' ? U( s" S! L" b/ {" R% [
;;[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]]0 N* j$ w* C6 A6 g- P b
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]
& E" s( e# l& u2 F$ pcredibility-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list5 v2 U0 I* X( _9 ~4 N2 y
neighbor-total" s5 o$ z+ f# d& H3 W
;;记录该turtle的邻居节点的数目+ G- ~# ~1 [$ i6 A8 f
trade-time
) O' r, i7 K7 ~. g0 r) j6 ^- ~;;当前发生交易的turtle的交易时间
! k, i6 w( D7 P4 o( r, T8 G! [appraise-give+ ?2 A- z. f5 N2 G& m3 `) K, i |
;;当前发生交易时给出的评价+ B# b8 @& y1 c% e! O9 R9 v7 g
appraise-receive+ }, O$ E2 ` q6 ?$ P- {* P' N
;;当前发生交易时收到的评价
0 g- e- ?* @) }0 x8 Y/ nappraise-time
$ w& u: A. R) S3 T/ H7 A6 I;;当前发生交易时的评价时间. e7 x; s6 }1 c& f! y6 d4 Z
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
, d! x3 A1 ]! M; l2 t; z7 l& Q3 u; qtrade-times-total' o8 `) V6 O5 `7 r3 M
;;与当前turtle的交易总次数9 f+ e9 ?; u: V% s5 H
trade-money-total
$ r" i0 x0 c3 c$ q" }# E" z/ k, A;;与当前turtle的交易总金额% a* u, k& x2 E! p) f5 U& H
local-reputation
' j, [( W. G m% u9 H( G% ^9 kglobal-reputation
1 Z/ ^- s4 C+ k" K ~0 Wcredibility
0 Z: k# E2 d( O1 v* P5 N! E- N;;评价可信度,每次交易后都需要更新3 Y! S4 l* V& y3 n
credibility-all4 g$ o1 _) k! V( j, [& V
;;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
: T3 a/ V7 g9 L4 x" c0 F$ U; w$ w. a5 u1 p4 s
;;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: x3 ~; f+ m- D, V
credibility-one3 m3 S) y5 s; 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
% Y, V5 u* A* ?/ d: j2 D5 L& y) Y& Cglobal-proportion# M; r( i6 [8 u: c" Y
customer
5 y2 z' S# [5 {7 ]customer-no- r5 N* }4 T# z& n7 N% X6 B3 v
trust-ok
1 F+ _, b% q3 {7 O; J4 htrade-record-one-len;;trade-record-one的长度
5 S, E6 ]( o7 J% Z9 {]
4 e' V; ~! E7 R" l3 N- j% S: q9 `1 D' o. Z
;;setup procedure
% \, B: ~/ a. r- @! b2 X: B
# S9 X7 b* G$ j- E/ i$ w/ `6 Ato setup
+ Q# R" N6 S/ U) Y' I( q! H* h' A; R4 l, q% Z# x# {2 D8 v
ca
% t+ B9 t2 B/ w' _1 I7 p9 \: A+ K% M# m% ^' a# V& a
initialize-settings2 E3 v3 |) ]7 u2 v% |) g- X" n
6 N2 z5 O2 R0 ~( }% W: e% M R
crt people [setup-turtles]
$ |; P- d3 P: f# ^4 Q" |( Y/ `9 F1 q" X
reset-timer$ P8 B! t5 s I: ^3 b! K# l
. Y, l2 h( {# i" b& W( qpoll-class
3 L6 l2 l+ H8 {* b" r8 n1 y
: l) [8 T% O% a0 `" n, z3 s9 \setup-plots7 \6 [; k& U8 ?( y3 |1 ^( q
8 i: n. L9 X$ F( _, G5 Y' W% D. ?do-plots
, i/ T. V. i' P0 B: M. Iend" N* V& |$ a/ A6 e
- J. O( j0 |) pto initialize-settings
! n; L! G* d3 ?/ Y3 ]6 a! s3 O7 f- n; l
set global-reputation-list []/ I% [$ H1 r* W& j
4 R, l% J. V0 Wset credibility-list n-values people [0.5]# k, e( H/ K+ j+ u- R7 s( f+ U$ @
% R& Y/ `4 Z( [
set honest-service 0
# k6 G8 \5 t! A* o: F) ?; S- j3 }6 C" ?( M; z
set unhonest-service 0
! e2 V T, F9 [: g, j2 c7 R# _0 D4 L g: h" M1 A4 r
set oscillation 09 i" g; _% h- x* p6 r7 u
1 O" l; j2 b" _, yset rand-dynamic 0+ \# H8 ^/ X* c# `/ D: G& `$ b
end
8 K0 k+ n r* d
* l* J" S' _/ d+ ?* `. Z. Jto setup-turtles
# K! @0 q* Y0 Y5 B( `; yset shape "person"' D( W& N* V* |+ Q' p
setxy random-xcor random-ycor
: j) `7 U/ S% Z0 \$ N3 @3 v7 Sset trade-record-one []
) ?6 y# `3 N1 T" Q% T- a: S0 L$ \& F1 i
set trade-record-all n-values people [(list (? + 1) 0 0)] 6 S' s+ ]" f' ~% g" t& B& B
/ H: O$ B8 @( w; Z; bset trade-record-current []: h3 y+ z# t* ~: x
set credibility-receive []& b* j, [: q8 `
set local-reputation 0.5
0 T- f, W( ~* }4 @7 f' T# Sset neighbor-total 0
4 n2 I* j! ^ T# E; @3 g3 {$ Pset trade-times-total 0
4 B4 t t) `' | r) o! jset trade-money-total 0
7 m2 u) B3 P: K( Bset customer nobody
p- H8 F4 q @7 x, q# L6 dset credibility-all n-values people [creat-credibility]
. N6 a0 F9 t/ G) H! D! n. v0 m9 q8 ]set credibility n-values people [-1]
4 H5 K# [" |! Y3 e. J: Cget-color
; Q* I k1 G' B$ v9 Q4 S V) } _4 z( S& \7 ?& G0 r* ]
end
8 V: m" n5 h2 ^9 Z) d U9 ~0 k- P2 M9 b/ ` ^* Y* Z/ F! E3 _
to-report creat-credibility
8 G, ]6 c8 O- `& G- rreport n-values people [0.5]
4 F4 L- \- `! r5 J. _0 D$ C) Hend
, f7 w. }3 r5 w3 B" ?
5 G& L" g* Y0 p" F" y$ Eto setup-plots
# [( D6 ]& z' I3 i- A( F: u9 Q; l) `, O9 Y
set xmax 30
; o; o; S% p5 u$ q1 o8 b' Z; h+ J) ~5 \( m; i) O/ c0 f+ B, {$ g
set ymax 1.0
1 O+ \) R) y( o: D
* N3 L3 {' w8 V; rclear-all-plots
# ^9 t0 a8 _0 P5 g
4 d A3 q# ` s6 U: |8 Gsetup-plot1
$ C. [0 b# _ y1 L5 W$ r) s4 S- f" }
setup-plot2
. F: P( N# Y' F( S u* K3 C |3 ?) W$ J$ S. q" h
setup-plot3
/ m* T' D; w% A8 ~end
3 t. Y* G5 c$ ]& x8 F+ `) R! [9 Z# t) Y8 U+ Q( a
;;run time procedures* ~4 K+ p& C7 S7 Y1 d0 o; }- O; |
5 p5 O2 N9 {" S4 ^* M9 }2 ato go( h% |1 L. o8 q! `0 Y u' l
! F% t- u) V$ H% B# g1 c
ask turtles [do-business]9 A- R$ f% e7 f
end
$ M8 Y* M3 K$ P: u( Z- `- |
9 ?; n2 N% T" f( Hto do-business , Q* ^8 O, \+ y/ C4 k2 K, N% K2 X3 r9 L
# s. `3 T# B: u6 e' o. ?% `
' q. C3 t# q9 \) @" S8 z+ H6 urt random 360
' a1 c% K- l+ U6 a" A4 m0 B
; f t' J$ J+ A' U4 I5 `fd 1+ b. ], w6 J }( d. c& `- J
' U& z% C, i; h. H ]* t4 sifelse(other turtles-here != nobody)[0 N7 f7 [* j; i! l- n; k
0 @4 ] `8 B* d0 V4 zset customer one-of other turtles-here
; f* r6 X7 L, N, y) F& K' G7 o% x9 U4 J
' p+ `5 J; n) j;; set [customer] of customer myself
# p& H8 Y. }$ y5 {- j0 q
6 s, g- I+ O( E) d0 a$ W: oset [trade-record-one] of self item (([who] of customer) - 1)
- k: I) I3 k* D ][trade-record-all]of self, g0 H: B* e: y* O! }7 [9 x
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
" t+ G! l9 h, ^: \2 ?+ R% |' D! _4 x
set [trade-record-one] of customer item (([who] of self) - 1), c- } G* k, w' G l" d
[trade-record-all]of customer
6 J0 k T% S: K3 H1 D/ g. j4 o) O! E( @
set [trade-record-one-len] of self length [trade-record-one] of self
9 E: @' Y1 z, u' z( ^: j7 J* ?$ c1 ?6 N
6 y: d0 v+ |7 t. fset trade-record-current( list (timer) (random money-upper-limit))! D# P- t7 c9 g: K
# q9 J- d/ z2 k/ A1 }$ P
ask self [do-trust]
& C1 z$ I' X- p3 \;;先求i对j的信任度# _! s& V H- c% C& m7 [- y
/ S# f" _! r3 L5 rif ([trust-ok] of self)8 [& g$ X! f, [& u. ~ L
;;根据i对j的信任度来决定是否与j进行交易[
: K0 j/ w/ H$ l! M( w$ Hask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
6 @" g5 q ]0 {! F' R3 L- s
7 ?" F- q7 \! [! e9 x q[
( \1 J% ]7 \. A8 v. Y' ]# f; N3 @9 x
do-trade
7 l1 k( @; ~4 _& X( l5 J9 Y# k- G4 H8 A5 _( m( y) k- p
update-credibility-ijl
/ W: j8 h: t3 r' h# m* Z9 x
% i& U1 c; z8 ?- ?- d Vupdate-credibility-list) i$ @8 O6 s, i7 [7 N$ _
" H6 {2 ~9 S: I
( l, `& J$ f: `/ D3 {* ]2 |update-global-reputation-list- f& m: h$ _, m4 X0 U
, r. ~) Z* J. L9 F! \ \, J
poll-class
. Y# |5 b; m _+ U } N8 L: A7 R5 o8 x- c: E- B, E# b% V1 e: N
get-color
! \5 z' L. _- U+ Q1 Y
2 t* o7 g% w0 S2 I8 Z" J8 F]]
4 c3 J$ a% G% F$ O: r4 F/ ^) h' Z. |& D& V. C( |# V. l3 N
;;如果所得的信任度满足条件,则进行交易
5 z! E4 ^& g8 E$ W+ |0 Y% x% R3 Z. l6 o$ D2 c8 R; i
[* @; C* D. I t5 y/ V! b
+ s9 V! T0 C2 Z: E1 ?
rt random 360
6 f( Y. [- q% R5 e0 s1 \
1 p. O2 ^& X, t7 E3 ]: |8 Hfd 17 y6 D& n2 l" W! T
! u+ T; [2 N0 y! z! a5 i. _( u9 L]
! H4 g' E5 a T# l* m, _8 _; |2 K m( X. m$ ^
end' |" v4 f0 N: H' W5 i6 y
4 i ?7 R$ T4 [; k4 H- b6 H
to do-trust
0 b1 r1 E; {3 I- P3 i" eset trust-ok False* A6 S' p5 B& l, T
7 k4 \2 p! G" U* J; B
2 V" P: _: `- e4 s# i, B# w6 B) Olet max-trade-times 0
Z4 S, n2 p% _6 g3 }( e9 oforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]] J/ C% o! h0 l# r. a4 m: T) |
let max-trade-money 0
, [$ q: k6 E1 K. ]8 Y' Qforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; l/ x y7 ~! Z4 i
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
# o1 ?8 l, ~( k2 g A& w
8 Y/ f; [. }4 }" T; T$ l7 n1 |3 |6 y. N7 M
get-global-proportion
! w7 \0 Q: ^! q2 V$ glet trust-value; p9 Y$ q! N' _# a7 u M+ Y+ e
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)
6 ?6 U0 @1 X1 s0 J% zif(trust-value > trade-trust-value)
/ E2 T4 }& y, _2 d' ?6 x; w, b8 Y[set trust-ok true]7 {0 F* j6 _5 P
end/ b" W7 J0 c9 w9 f1 l7 {9 f
0 K5 ^7 |1 a& p; w. [1 j
to get-global-proportion; c* ^2 P4 z" a! v) A& L8 X
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)( E/ l) |- h; s- Z6 X% _) C5 n
[set global-proportion 0]
5 j2 Y1 ]6 g9 |[let i 0/ B+ e6 E ~9 D. @9 v7 T' \
let sum-money 03 R& r: v1 h9 |4 @8 ` d2 ~) ?
while[ i < people]
5 G/ ~& b7 p, H, o1 I' C[
7 A8 ^/ c1 N7 {: w+ Yif( length (item i
" r& I) [" j; p0 T$ k, N[trade-record-all] of customer) > 3 )( ?" b- J! \* Y8 R2 l# ~
[
M5 L5 o8 B$ z7 M8 z- Dset sum-money (sum-money + item 2(item i [trade-record-all] of myself)) ]) c/ H% y, j, {! y
]
?# V2 {% J- O5 c( x$ v]
+ y/ E( O8 l1 j2 ^, w& S1 mlet j 0
9 M1 Z: a) Z; q5 m0 j5 ~ V1 Y5 M: olet note 0
2 f, J% r. f \1 Nwhile[ j < people], V2 k, _& [2 T* q9 p5 s
[3 @) ?& ]( j! z* ^, d# i/ c" Z
if( length (item i
- Y- W1 _, o: @2 t+ _[trade-record-all] of customer) > 3 )
8 B$ ~: H' r# S0 c2 P9 ^6 ~[1 ^9 j0 h) `% P3 T0 ^
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! O1 [. w9 D1 }! O; p& @& c0 O
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 ?; S; r5 e) n& h' @; u* }9 d1 i
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
- S Y, ]* G4 [' P D. E% m- O]/ @# \9 z/ P- n3 r! C" D4 Y9 J' U
]
/ d& z% y, E& W. Yset global-proportion note9 H$ f$ o, W' l
]: | A3 z4 Q7 N5 [6 _/ r4 I! `
end8 H4 j: N. S2 J, E7 l
& j t- L Q4 F) Y" J# T+ @# Cto do-trade
6 _( N K V9 d;;这个过程实际上是给双方作出评价的过程 H& l4 [7 L- i7 Y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价# [( G% N+ z7 w5 _& C5 l0 I0 v
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
! F/ M- Y g$ [' z' N! Bset trade-record-current lput(timer) trade-record-current; n5 B2 h9 F1 {. H! E3 y, {
;;评价时间, U3 B% n2 A! n/ j1 p! u" J) J1 a
ask myself [
7 A" g% Q, B; x% M+ Supdate-local-reputation
* y& u- c0 Z' L9 z$ \set trade-record-current lput([local-reputation] of myself) trade-record-current
/ C" y, L/ N+ A4 _5 V4 @]" t: M# o5 e* c( X0 C
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ O) j" e. `6 U* B7 R) ^;;将此次交易的记录加入到trade-record-one中 Y; I: C% A. P( r5 f
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself), s1 H; e! G" O/ l2 @/ n: v- w7 q
let note (item 2 trade-record-current )
9 [8 _$ B3 B" x0 B; R- Eset trade-record-current
' \. P/ _+ p* T; q! L(replace-item 2 trade-record-current (item 3 trade-record-current))
5 b0 |5 W! K5 [* X# pset trade-record-current
/ z7 E! V) ^4 m7 \( y; ](replace-item 3 trade-record-current note)6 o, _# l1 j( o4 s$ B
/ G0 s0 D9 ~" }$ i' `4 c
6 p5 l' L: d; Dask customer [2 g- C6 |. ]% a: S
update-local-reputation1 [9 T) W: A4 d4 s+ N$ e$ {& r c
set trade-record-current: b5 C" u2 r/ z4 t# U4 K$ E$ L
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 0 _/ C/ S. D6 J& S
]
% O! C, _% X- k8 L! T: t. }7 h# v) j" j& X
8 K- W2 c2 [* u" ?set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: q0 ]0 ]: m) D6 \ q
. e; }5 O+ D- N( s4 ^
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ ?7 b7 x: I" _3 }8 ~;;将此次交易的记录加入到customer的trade-record-all中
8 w& x7 X2 \) u7 i6 L, `% Tend, C2 l. [ U! V
9 c+ Z W# _& R1 z) y
to update-local-reputation
4 L o# I, `8 i3 F" s$ |4 V! X! a+ Zset [trade-record-one-len] of myself length [trade-record-one] of myself4 I& d0 M0 c/ x, e$ k
! j2 e# c/ t" z1 J3 Z0 A, l
4 `. o X# ~5 w2 N' {5 a* D
;;if [trade-record-one-len] of myself > 3
3 x/ U& B# F Z2 X; Vupdate-neighbor-total
/ }0 Y3 h: B# K2 m2 D;;更新邻居节点的数目,在此进行2 A8 O0 d* I" o0 A
let i 3
' i5 U) v5 Q# H1 H; `6 H, Olet sum-time 0" N7 |- E5 J# H1 d$ b& L
while[i < [trade-record-one-len] of myself]
- G& v \- |; ^2 z% j4 h[
* G$ u: x: w9 c. ?set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
5 E' ^/ N0 @3 dset i4 V6 W+ _! h c2 a
( i + 1)+ C" w, f1 Q& e
]+ r7 F! w5 q# m- n0 h6 e
let j 3
9 _7 p9 g$ k0 }) o' ^ |let sum-money 0$ u; @ A5 ` ]4 C p8 F- q
while[j < [trade-record-one-len] of myself]
+ h# d& ^5 N) C* E[
% v8 K0 d- u" {0 Q& K7 {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)3 j/ d" s; O C5 [/ K- |% _
set j
" L/ x5 |2 M, l/ @/ q( j + 1)
' G, S4 |4 x/ M/ O$ @]
% K3 x3 p6 }4 y8 p$ X9 q4 A+ k4 i/ `let k 3
$ c+ R, \7 c& P+ }, g) a( Z/ S( Wlet power 0' n t+ J) v6 `% E- x. `% \
let local 0
* }2 K( Z3 \& m2 @5 g# o4 O2 Wwhile [k <[trade-record-one-len] of myself]
- b5 ?$ H/ a& M[) \, e% g1 y( R3 h: Y" p* Q
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)
0 N# [# ~0 } t$ X. _ u6 dset k (k + 1)
2 f5 j4 |' C* f]4 E6 X8 P1 a# X: T* I- q5 w4 [8 V
set [local-reputation] of myself (local)0 y* K2 H! U0 Y" X+ `# }
end
j1 Y, r* L' x3 L' i4 x E7 d7 b
" p: h) o8 R* H- v+ S' d* @to update-neighbor-total
. E2 l/ Y8 L. }% Y8 `3 T2 b
2 E: b3 P$ C( i3 S0 `& Vif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
; k3 V( b# E; Y3 e+ Y, P% i9 b7 o" C: D: \: Z1 Z1 M
6 \+ h- h% u) i# ^, ?7 g7 f5 l& X- ^end: w. E8 J3 r1 C4 n
+ z6 U& A/ n- |! h' U, _
to update-credibility-ijl & h: M+ o6 d Z! @* f& S5 X% T
/ H: K) f( g2 j* b" F. O2 J/ \
;;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。
& w. f- V, F* l9 ~let l 0* g) {# A2 W* |& R) m X5 d V6 x5 y8 T
while[ l < people ]
' W; f+ y1 C; ^# n1 e. x) W8 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
4 O4 z, u. Z' t5 y7 R$ ^* G9 _[
6 U* A, {( K1 N+ hlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
/ p/ P5 T/ I, H, Y- d- Yif (trade-record-one-j-l-len > 3)
: s7 T7 h( X0 d! s$ u[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
?1 U/ r- E# Z# Elet i 31 x+ b1 ~% K; ^/ o. }6 F- w! @
let sum-time 08 W9 I; G' k5 y, U' G( B
while[i < trade-record-one-len]
: B; O S' d: m4 r% M/ L" y: r[2 @. L, l5 X+ }# w' _2 @
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
+ S4 O8 u) O+ Nset i7 b+ z5 P. M: _! ] z! X
( i + 1)* K+ I$ f0 \- j+ y7 B
]
7 E8 }$ H0 O5 g r8 Slet credibility-i-j-l 0! ? w- m- z/ S! E
;;i评价(j对jl的评价): g6 B/ b1 H2 U# g5 C7 K: v
let j 3* k, M% ]8 l y1 M; T4 V
let k 4
% j: k, B0 J# m8 o* [3 v0 Swhile[j < trade-record-one-len]. m! K" j" k* J) M+ l+ k+ z
[. v2 w5 N$ J, u
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! v( ^# w6 D% F; E
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)$ z1 x6 y5 ]* ]# Z% A* y7 I1 t
set j+ U9 T! M; V! P8 R) k
( j + 1)! {0 v& [# J7 t5 m" X; n/ D4 G9 e# d
]
B+ u5 G9 T- l4 Hset [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 j0 `. Z) I' q
( v( i9 E6 L J4 u0 @7 ~7 S3 K8 T# ]% z& _
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))$ G/ N, {$ @/ o8 R% d
;;及时更新i对l的评价质量的评价
# }0 o' y3 Z2 I' K$ F+ aset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
1 C' h6 e% s' B! q3 J8 }3 [1 Kset l (l + 1)
2 E0 y, z, _2 e' E. n]' A. f# K- H+ a, O; d# _
end: q# `! K& s+ Q* C9 x
! S/ H* W; D# w& r- v$ ]to update-credibility-list5 y* ]! V/ u. y) |/ ]9 ]
let i 0
$ v( N% b M4 F2 @$ r8 k- C3 fwhile[i < people]3 z) w* d% V2 d$ C9 E' T* @+ e
[
6 E3 q. p. X( o/ zlet j 0
' |% S% W% _6 t& j) v$ t* Ulet note 0: A$ o6 U+ N! N% x# w5 d' S
let k 0) v# K" F# j7 L8 q3 I8 X/ \
;;计作出过评价的邻居节点的数目
6 T) r c( Q& {9 ^9 ywhile[j < people]
4 n' I( @( l7 ^3 ^/ ?[
/ _ v a; n* M4 P' ^if (item j( [credibility] of turtle (i + 1)) != -1) C3 l9 {& {# ]. L) j( c
;;判断是否给本turtle的评价质量做出过评价的节点2 ~* `6 t4 w* m% w( P& A
[set note (note + item j ([credibility]of turtle (i + 1)))
8 V4 {% Z* O- F) e. R6 i;;*(exp (-(people - 2)))/(people - 2))], l5 g$ L6 h3 ?1 L" m6 {
set k (k + 1)3 @8 T% Z8 _& {$ S+ m
]
! j, ]6 a) {8 I. G. o$ yset j (j + 1)
0 a3 h( X8 X5 e! ~$ N]7 W( \' Y9 `9 t
set note (note *(exp (- (1 / k)))/ k)+ A2 F4 z& x6 A% [% J
set credibility-list (replace-item i credibility-list note)
5 }) w+ t" |7 z7 ~set i (i + 1)1 z8 D$ y$ M0 W% Y' v9 M( |/ T
]9 Y1 I) A4 j& N+ S/ Q
end+ m: v, y5 |" b* G* Q
: z, n6 A. D) d- D ^7 u/ P, _
to update-global-reputation-list
j# C! q& K9 P8 G. F, w# Qlet j 01 R) v4 I; N, N, E) i/ V5 `1 v
while[j < people]
% I0 V( J/ j7 h5 i+ H6 C1 a[/ v! }; S$ x$ G. X/ ?; G
let new 0
. A- K; ^7 ?& W;;暂存新的一个全局声誉
6 h' Q, O! e/ s/ A4 E$ ^8 Hlet i 0
8 S8 }4 k/ F% o! a+ U7 blet sum-money 0# W% Q8 Z$ Z# j. q& E
let credibility-money 0
5 R) s) \, i+ L; ?: W. Wwhile [i < people]
& Z- P4 o; {* B% P$ u[. a9 x& l8 N+ P" `- s. z' L
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
% G9 o! B7 ]/ jset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
! R1 w3 T. t/ P$ q8 G5 cset i (i + 1)
1 W" x+ ~/ b, z]4 p# h+ m. k) z G4 T# R
let k 0. e: E6 }9 j9 U) M. B8 q k
let new1 02 ?; V& X! D% q- v! X
while [k < people]4 c* @+ s7 {' o: V. G5 Q. Z0 Q1 v
[
4 a' I' r- [- w/ k ^! sset 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)8 j* V8 Q" R1 c8 m: M
set k (k + 1)- @- H2 o, ]1 j! d8 R
]' ~4 @ g. W$ R0 l
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ; M) i3 y, l" [; P! a
set global-reputation-list (replace-item j global-reputation-list new)+ J# X8 ~( ~ K3 `, P5 O
set j (j + 1)
+ L8 H5 g7 C, \* \9 T! b]
3 [: R8 l+ `5 ~) jend) w/ ^% K% O8 O& }
0 e8 f/ \; E, i
2 u/ @) Z3 m9 F9 T
% ~$ [+ W& J0 [to get-color G$ D; m. V3 U9 j' b: T
% M3 }) U: A4 n5 p4 V u
set color blue* W. G2 k, X( b5 [2 N
end
" W% G, J/ `5 M( m8 X5 e- r' ?6 m x+ f# t# r
to poll-class- C1 Q; i; H: E) G
end
& B% ^1 r, J3 x2 ~% l! f* @8 g' p, b* |4 m8 H+ i' E( @( P. m
to setup-plot19 M- x: [+ s3 J4 p! z9 s2 `0 ]
9 D" W# Z+ C, G( ?, ]" u4 hset-current-plot "Trends-of-Local-reputation") R7 C# _% l: q5 ?. Q
L3 T2 P, T' f0 q
set-plot-x-range 0 xmax4 Z# F) z5 q. ~; B) e$ p* `
. C3 M+ y* e' s; X) H9 f, j
set-plot-y-range 0.0 ymax: I, W' i4 X. B* O j1 r
end
; N: Z3 F: A' P* j! r& z/ l2 F6 i
to setup-plot26 H6 X; Z! L1 j; O5 p
' ^- k0 z( |4 k0 B; k! s* j
set-current-plot "Trends-of-global-reputation"' u% T# Q4 N \$ t1 {+ D
' u& ?1 d: T2 C8 N! F! n3 ~
set-plot-x-range 0 xmax
5 C4 W9 z$ Q$ i
2 Y, y' w+ d8 s* v7 ^) Sset-plot-y-range 0.0 ymax
1 E8 h/ F1 X( [, nend9 V/ c* M1 x6 j- d! |
& t6 `5 @0 V/ o: b- o1 Z: y+ hto setup-plot39 }6 J/ o s9 p: x
0 I, S* r4 L) p8 }: k
set-current-plot "Trends-of-credibility"" j) n7 Y9 o8 [, S7 d
% L# T) f9 p* f1 m2 `9 Z
set-plot-x-range 0 xmax, T" H2 [6 S' \' I
# |+ ]0 ^9 X' P; t4 Fset-plot-y-range 0.0 ymax
; e) e/ ?. [" P. w& X9 ?end
5 o9 b x. }! s# g* w% l6 @2 ?6 ~& D% k% p, t
to do-plots* l1 w5 ~5 X1 I- ~7 O) h- h& L4 G
set-current-plot "Trends-of-Local-reputation"( w( T* Q* [4 N, n `
set-current-plot-pen "Honest service"
w4 R. I+ k7 e: S+ W1 {end6 _8 W* }% K- S8 g8 f4 P& z
j# F4 J0 R* U[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|