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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+ `+ @# e# j5 J$ }% nglobals[( Y( Y3 o. a3 m$ |6 a3 v
xmax! w, N8 j! K6 d- g& z, W) E2 a
ymax" g3 Z" h! S6 B5 \; t% A
global-reputation-list
* B9 X, L6 d& I6 Q1 s g
- h* p8 p2 Q, P# \) V;;每一个turtle的全局声誉都存在此LIST中
+ U( \. V* b. j- R# Mcredibility-list
% [. q9 L$ u- I;;每一个turtle的评价可信度( h0 J7 l0 f6 ?5 D- j: O
honest-service
# s. _ {& i* s4 uunhonest-service: y/ ^' x1 Z+ W
oscillation' D4 D/ I, w3 V0 m8 K) `9 v
rand-dynamic( y7 x7 s2 [! H. @; Z# S
]
, h9 B1 {1 V1 P: c0 Y6 R
' }7 z. W% v' F9 n: `; Hturtles-own[. w4 J4 f3 U3 g, `% j7 a
trade-record-all
# Y; h+ C/ L& @;;a list of lists,由trade-record-one组成( v, O1 [7 a$ g$ v
trade-record-one1 Q) Y% |% d( Z3 u
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
9 _3 B. S. r+ p2 R% U3 ~0 W; M' b( q' E: r1 T: s0 Z! t
;;[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]]& p2 O" a6 v+ ?: ?8 q5 W
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]! X) C+ K1 ?9 d* }0 `
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( @0 L6 s9 J: d# c! v
neighbor-total
6 D5 Y8 g6 Z; _6 x& C/ G3 o;;记录该turtle的邻居节点的数目- x7 Q' n; ` l5 G
trade-time
/ l9 H' M! T! D3 x( c; P;;当前发生交易的turtle的交易时间
" f8 W* f, K9 {5 J2 M1 ?appraise-give! J& M* r+ }/ b3 r; z
;;当前发生交易时给出的评价
- t3 {- X9 M0 P" Kappraise-receive. c% S) X# U+ x+ q6 o3 D: ^
;;当前发生交易时收到的评价
: I" H/ p) m& V& O5 z! z0 N' M _8 qappraise-time
2 r) t' m. J4 A: l7 K;;当前发生交易时的评价时间
' U+ p8 X) u: _/ K9 _, l# g; Tlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
, A+ o0 A) k$ a2 ]+ otrade-times-total- M$ B( }1 R+ ]+ a
;;与当前turtle的交易总次数
h7 t9 A& l6 R1 O5 ptrade-money-total( R! Z" Y( D' e! _, v8 U" Q
;;与当前turtle的交易总金额
8 z, C' m6 A: m* g$ ]) `" |local-reputation7 ?; W8 G5 m" j* q3 L' P
global-reputation i1 m9 D- e( _9 e0 u
credibility
8 L7 g) D% P* r1 `8 W$ z& [;;评价可信度,每次交易后都需要更新
& @9 b+ m2 b2 z r$ V" ~credibility-all1 ^% Z; P. P- y2 u( }2 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
- T$ a+ \3 v# X6 J. o/ ^" C7 ~9 p# t6 n& e& V+ K' c& P l
;;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0.57 |6 p1 Q J) \ Z% k
credibility-one
4 g5 e, \/ D, _% p9 d6 u! T& L( `;;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
! Z% O9 m8 R" f T2 s8 gglobal-proportion" Z' ?' a2 Q1 d
customer; N( M) h3 A- o( J
customer-no
2 k6 j+ K- Y% c! Ctrust-ok
/ \9 ^0 } L) T. X8 ttrade-record-one-len;;trade-record-one的长度
* t6 @) T- F1 V3 j. H4 f1 i G]: b, G$ ^% o j4 Q! h0 C* C
. m$ w1 `4 R% t! c1 ^7 {' J;;setup procedure. c* M$ q6 W1 P% l% c& U' [" J2 O
) K: \& w/ F% l# Z# B+ Nto setup' M3 u3 T& X' T* `
1 y5 Q9 F2 ]$ i
ca
( `; r, T" K0 l; [0 Q
- Y* L3 Q; ~8 c1 v* P6 Ainitialize-settings+ F2 r+ @& d& T! g9 Y4 V+ K9 r
$ I3 C9 B; D6 J& |6 R; \7 f
crt people [setup-turtles]/ ^/ h. l5 C Q6 L2 J# y6 d, ?& }
1 x* j: q) ^! H# ]0 Dreset-timer& K# R0 n) Z; d9 W( Y
; t( ], K( w( m0 o6 |8 U- H7 Epoll-class
8 a$ j2 E8 @/ e( x$ A: e: `1 I3 ?% e- l! E8 X
setup-plots
" @, d, b1 \* K. ?! J r0 w8 n
do-plots
, s& }$ g2 Q: [0 Qend
. J& D$ o" E) V+ j5 z6 o0 w' {: @
to initialize-settings: a7 e# W8 V) b) W/ s* w2 J6 Z% Q
1 P3 [# ~" N/ k+ a
set global-reputation-list []) A) y# L7 |# K J
3 U* R5 ^0 J3 e4 ] L: x' C- w
set credibility-list n-values people [0.5]2 P9 N6 B6 p$ T* ?0 s
; ?9 k3 @- V+ ~7 y7 O
set honest-service 0: [& P0 A) L& e l( T9 G/ Z
. y) n; s7 z) u" v; c. l+ D% {$ Cset unhonest-service 0
/ q: q6 `0 ^1 [0 g1 F. `; H* c
set oscillation 0; {3 A; c! ^9 t: \* I% _" Z
* `; T' A' v# u0 }: ? p% ?set rand-dynamic 0, C1 _# h, ^% M! |( \
end
" ^6 }+ t2 D& F/ Q( w5 V& r3 D0 _9 O9 }/ }6 a6 j) c
to setup-turtles
- X% o; a9 }6 Vset shape "person"
9 `/ s8 }" S/ z5 Psetxy random-xcor random-ycor
3 J# s. ^. P. S" i9 M; q3 \set trade-record-one []6 S M8 v! i, L8 \1 \
' B d' q- H* J1 T8 i
set trade-record-all n-values people [(list (? + 1) 0 0)] * u9 c5 G% F# ]
% w4 D+ @2 e/ W+ T" H
set trade-record-current []: D* w0 _, o3 n2 G! n& M' B
set credibility-receive []( U+ o0 a; {* N4 c
set local-reputation 0.5
: K6 d6 W' t* e* s. W9 G* \set neighbor-total 0
( Y' B5 a, i, J' A7 e3 J- Q9 Aset trade-times-total 0
4 {0 N: Q8 E/ V a+ r' ]2 sset trade-money-total 0* r- g5 S: j5 W* U' t5 G) j
set customer nobody
0 P. W: {; E. z) d0 Sset credibility-all n-values people [creat-credibility]4 j% W8 t, H- _4 s
set credibility n-values people [-1]0 k, V7 F7 |& |6 S" }3 h
get-color
; w$ {/ B7 h' y0 U" o: V
) [5 y0 r$ z+ P! U! Xend/ v% h7 M5 e6 B* h# N- Q+ l3 m
8 R& t: Z7 r. z- L+ Lto-report creat-credibility
: k! h% f0 M# P# _9 P, |1 areport n-values people [0.5]# l6 l2 I q; u
end# Z @5 {. S S1 ? u+ H7 V
& i$ q0 z. ?' G, `
to setup-plots
( I/ t& O, f& {5 X6 `( f
! h1 M% t: E2 g# F- W- Eset xmax 30" g' l0 [' R* }/ T! [& E
. N9 |4 w* q5 @2 a, n( q+ Iset ymax 1.0
! r% x4 X8 v3 g4 y- B7 n: x2 E1 u0 T
& V3 D& ?) s, Cclear-all-plots
( [8 f! J& m. [! K1 F9 E5 {- _6 u& j, u! B8 ?# M9 ~
setup-plot1
3 q. R# I( u- g- R- c0 e
3 {% _5 e" O9 |) E* Ksetup-plot2
" m* Z6 O' j4 t) j" p: i- c9 ~ i# R7 g2 |
setup-plot3& g& C! v% w9 c
end
8 i# S# n9 q7 c' r( v: w
6 f: A' r( S$ V! K, V+ Z) f! c- h;;run time procedures# N$ T% t! a) c4 g8 [0 L
9 d: }! ]1 W/ F; v8 Uto go4 \& i! c1 G; z1 o. }1 u
2 y# ~; g# g; Z, B/ z
ask turtles [do-business]
+ I, O) p3 ~4 jend: G' I9 g+ ?. H0 x! E
% b( |7 D0 C" y# M$ v
to do-business 8 v7 y7 o, O: ^% p- q& @1 F& v
4 t& n, I5 q. m8 w% ~
" f- X- W R# @. C: _
rt random 360# [# {- E! l2 i. R4 j
8 e" I) Z/ U* h$ c- H' Cfd 1: ]8 q' n. O1 j$ \+ m: c
- I3 [" f7 `& v7 \ifelse(other turtles-here != nobody)[2 P- _0 U5 d0 e) R- o2 y
, {: a0 n: s% ?& b, G; y2 `# R, \set customer one-of other turtles-here0 g* X' U' M9 H4 i+ K
. w+ u8 f, R2 H% N
;; set [customer] of customer myself$ g1 V9 {/ _* Z9 B$ s
" Y8 q9 ^6 `/ L0 k. t# \
set [trade-record-one] of self item (([who] of customer) - 1)
7 f6 i6 Y. P1 C, t6 ]+ V[trade-record-all]of self
# |; c0 f2 d1 {' E; u0 W, \;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
" z: q, ^8 j# q3 o/ V s' h+ k4 D7 A7 ^, U: E: |
set [trade-record-one] of customer item (([who] of self) - 1)
8 k- u. l5 ]; @& D[trade-record-all]of customer, M8 ] o7 W u: C, w4 x5 k4 A
M" N: i5 C% j! p+ Z5 a4 D$ qset [trade-record-one-len] of self length [trade-record-one] of self8 E1 A, R, ?% j- ^& z9 t
. ]" A8 y( |. H' l" f. x
set trade-record-current( list (timer) (random money-upper-limit))6 I* Q3 l( o' P$ d: O
" _2 l+ I a$ v
ask self [do-trust]! h9 i3 ^ I% ]3 C' g
;;先求i对j的信任度! ]+ T+ `5 O! d9 ~0 D+ G& G
, ^% n9 [4 m7 I
if ([trust-ok] of self)
# E- C4 O9 R0 ]( C3 f$ M7 N;;根据i对j的信任度来决定是否与j进行交易[5 a& w1 v @9 \2 f9 ~4 w. e
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself! L4 _, X# A( \, s. f. @# z m. ]
# C1 x5 k' _. R1 j# ?4 ~3 ^
[
+ }/ H5 D+ w+ E/ j' b1 h+ d0 d# p4 E4 V) b6 c0 x; ?
do-trade A) q" m8 k, d" r: N- S
& i+ f0 J/ a2 Y. Z
update-credibility-ijl/ H5 a& O2 u2 Z6 x3 ]% h
8 U8 `) u) x; l" K
update-credibility-list
* }7 S% E: ^% ~' N
9 q/ Y0 T; y% V1 P" j) ~, F
0 E. Q4 ~, |( K& _update-global-reputation-list
1 F6 }# e2 `; m! J8 X" t9 @$ L: O$ c5 z2 q% V o% n* e
poll-class* k* P8 C4 K( g3 l5 V8 A7 ~
4 s7 q) }; H7 a, r
get-color
v/ \ ^% G3 z" w
$ p0 e: a/ V# X]]3 v2 h' X1 R2 p3 }7 b
8 j. a) D1 P% ?) w4 W- M) d/ @
;;如果所得的信任度满足条件,则进行交易0 }7 O; Y, O5 S8 R# b0 V3 L. Z
, M9 ^$ W) O% K[
3 `7 v/ |8 n2 I% `
r' H; A7 h) d: C" a1 Ert random 3601 @+ ]- {5 `. ]2 K( b9 t
4 k3 q- Y5 ~9 |# ]' P/ \4 Hfd 1
7 Y% @6 ~) X& m( [: W/ h2 q: M. B* u) y# P
]( G2 t2 B( ~/ I+ a
& q0 c1 e: P; k/ B. F; E1 hend$ Y: H+ ~9 ?$ \9 V
) L4 Z5 E* P6 z$ C* P
to do-trust 5 c& X6 s5 B" u& m S* O" Y! W
set trust-ok False
: w7 Z7 K& G q& c
; C# x9 |1 x6 z) J
1 C- k% O0 R; X9 ~let max-trade-times 00 `! d, y- `" E$ r, j
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]1 F9 S& i7 {; U
let max-trade-money 00 c) M, |: @% P2 {: e( ]
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' a8 d, x! G1 E+ c& k
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))0 U$ V0 R+ w9 G
5 ^0 i7 ?" r5 d
' U# \$ U/ C3 S$ u( y
get-global-proportion
2 s3 E$ ~+ B$ }+ w4 tlet trust-value
8 X# }6 ^: x, X- B5 A" Y% v) @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 M* I/ ~# V% F, b$ ?, a1 zif(trust-value > trade-trust-value)9 k( H* J5 @7 z; C# h) g+ P2 p
[set trust-ok true]5 ?7 y# b7 Z. _8 T
end
+ ~3 Z( {' i9 a2 V2 P+ [
- v$ f3 z) N' L. y& z; nto get-global-proportion9 K, @! n8 V. ]7 H' X
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)! T. x( C" ?/ v: r z) n4 K {
[set global-proportion 0]
* y9 P$ i4 p: w[let i 0( u) {9 P9 _2 t
let sum-money 0
1 D4 V4 z7 m* Rwhile[ i < people]
$ w6 R# z! ?6 T2 K/ a[% `4 }2 V& w- G) ~6 T- N8 @
if( length (item i
4 t" |+ ]7 G, ^( R- u4 e/ G' n[trade-record-all] of customer) > 3 )
: ^; F7 H7 v# T5 }[
7 T0 n7 ~8 @, k2 P: rset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
- @+ q5 N' n7 p3 ~# P9 @9 w2 K% C]
6 X- {; I$ a2 p1 S]
- T8 G9 S1 j, Slet j 0
# @% T/ V, F9 S$ }7 Ilet note 0; O$ e7 Y; Z* c V
while[ j < people]& }5 y5 H+ T0 j- h
[* P% p0 w2 g3 X1 {- R: N
if( length (item i
3 I ~5 B/ p6 i# M6 I: g[trade-record-all] of customer) > 3 )4 F/ s7 _. j9 y
[
1 m" y9 ~' q2 Kifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)' Z e% ^/ [5 k4 D5 B) r6 [
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ X L; R0 [+ J9 T; x[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
$ Q! O9 W% y9 W9 p1 J2 l7 {]
# o8 d7 k+ P) L: v+ s]
( A8 S7 G% m' Jset global-proportion note
# j' v- {6 I& ?# K$ x" q" B$ ?]
% L S% d- R1 t6 R: pend
: |9 e4 _# R: _* q/ U. a9 D8 b; A7 N) k/ P1 v
to do-trade7 p+ {: j9 g" R7 w( X
;;这个过程实际上是给双方作出评价的过程- X* j( D6 O- u1 {9 a j7 S: Q
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
j) T8 n& \: bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价) ?+ p* z" y0 I0 u( L( V0 b% [* H: O
set trade-record-current lput(timer) trade-record-current0 W3 Y' X* T) b! }, j2 n
;;评价时间: ?1 e! p' t/ d V" {4 I
ask myself [$ d7 K# O% B& F& I n4 Z/ w- T$ v
update-local-reputation% Q" l- ?% V& Z) `+ o n
set trade-record-current lput([local-reputation] of myself) trade-record-current
+ U8 f; Z9 ]* ]# S7 c k4 p) Y2 z% |]
$ l" _& m$ K4 ~/ T; Sset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself/ Y7 ^' [' }0 t. ]
;;将此次交易的记录加入到trade-record-one中& k# j7 f% H# A
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
6 t! s; q# g( y* Y+ L! l9 o$ Nlet note (item 2 trade-record-current )- T4 W. R# M; P. K1 Q4 |% ^
set trade-record-current
# [5 k) K, D- `' u# |& y(replace-item 2 trade-record-current (item 3 trade-record-current))
. ^2 b" h5 A( W! U/ Eset trade-record-current
; m* Q. k o' V/ V0 E0 h(replace-item 3 trade-record-current note)
( d1 }- _& }; m+ |4 b# {' C7 K# j0 I: Q& b8 k* |9 U$ ? r& ]& i
) v- Q1 P* m: X! x# Eask customer [
) A$ u5 C( u2 e+ y. }; iupdate-local-reputation" N @9 A. z& ~9 p
set trade-record-current' Y* G) O9 \2 f/ Y7 Q2 I
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
8 T7 M+ B, p/ t5 s% Q0 X) i]
1 `+ f% ^' e9 ]& Z# i0 \& \( a0 H7 }1 g5 W* b7 X0 T1 d
4 N' Z: S. E9 e' C
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
- E) M5 T7 I4 M. O; |1 j# f) i1 U$ \
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
9 e3 Q) [( j7 ?( U;;将此次交易的记录加入到customer的trade-record-all中
* x2 I9 g; K9 T+ D, Mend5 p+ D0 W% |' O) U
, a$ y C4 {+ p1 hto update-local-reputation
! s8 R: F! F: e- m) Sset [trade-record-one-len] of myself length [trade-record-one] of myself
) G9 P& N5 ^5 r1 B
5 C6 n; i ?+ _8 |, \
% X7 H# O. j! Z;;if [trade-record-one-len] of myself > 3 / B7 k$ E# E# a8 q) _
update-neighbor-total: W# E5 ^4 u, k3 {
;;更新邻居节点的数目,在此进行
0 ~ t5 ?. ~9 Xlet i 3' q* ^+ v, j4 Y$ e8 L
let sum-time 0
; d, ?9 x4 T# W( twhile[i < [trade-record-one-len] of myself]
% j3 g2 e7 q3 J; l[% s! y4 A& R' g( K4 \
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' u8 N3 V7 v9 I: e% {9 G3 E
set i- k. [* A. J' ], R0 ~! {
( i + 1)( x1 i/ Z) n, ^! Z% t" `1 j" h
]' t) `2 {$ {8 p( q' d) b
let j 3
. {' `2 G Z( M- P$ g- ?( q' Qlet sum-money 0) j/ E( V h& T' w& F
while[j < [trade-record-one-len] of myself]) x" M( e8 H; K4 b
[
/ A4 L$ k0 S4 N1 L! q) h, q, Gset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
" i4 V) [- o* b7 k1 ?( Jset j
3 F& L% G$ [/ H( j + 1)( J* |$ U1 i! p$ q. u
]
5 _. E0 j4 P6 \; \let k 3' `1 K/ N4 W3 V1 k1 u& f6 L5 F
let power 0, E" w* |% U, k& p' \( O
let local 0/ `' w8 _1 L- }% y" a# g d7 |8 i
while [k <[trade-record-one-len] of myself]
1 \1 }" N0 ~, L[
7 w8 Y7 l& N P: {" A9 Oset 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) ( A0 ^9 W0 k0 e* K. ]
set k (k + 1)" O J1 i' D! w6 Z- V
]
* N0 u) T/ x; O% K; jset [local-reputation] of myself (local)
7 _( T7 I6 A' S% Aend
* [$ N& V0 ^# w
8 M! m$ u- c' C- V' z, Mto update-neighbor-total
) m# j% ?/ X, ~2 h+ K v% \- |" h B, e* [' f5 j) u+ E
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]' Z1 `: m8 |. `% h: r
3 F6 K$ ]. s9 x: \
( J7 T/ v N/ V/ t! v8 U) r+ e6 Nend
' W: B/ x6 T! p7 O+ w& t( }, m; Q7 _; n9 ?3 r0 Z0 \! o" f9 C
to update-credibility-ijl 2 }/ x( C- R/ i1 x- D! J# e/ J6 [
. k1 y0 ]0 O& I
;;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。
; |' i: I4 E* E2 o: Klet l 0- q# R5 i5 s% K3 b8 c0 M. S# E0 e
while[ l < people ]
( x5 X3 }& D) c. l0 Y1 X;;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3 p6 K' }/ |( P% U
[7 y0 y' J& e8 U9 s( [. J6 H$ ~) X
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
1 j' }! f* z* h$ bif (trade-record-one-j-l-len > 3)( W9 h$ ^! x, h5 k7 ]# X
[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-one2 A( {$ g3 n2 g# d/ K" j8 V
let i 3 ^; P p* f( D* e2 d& e
let sum-time 03 W3 r, A; w4 W( ~4 I) |8 ^- | r+ Q4 e
while[i < trade-record-one-len]1 K" `3 h; q7 K$ t# Z, C% E
[
2 P. }; U! c, Nset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): t. e' N4 }7 d3 j$ ~- L
set i( ]* `% S. v+ ~, r: M# c; D( }0 y
( i + 1)
3 D. s/ }/ f4 ?7 l! D3 ~" P6 s3 c]
6 e7 e1 J* U/ ^3 alet credibility-i-j-l 0- D. Z1 P3 H, y6 p; [, ?
;;i评价(j对jl的评价)
4 L3 l8 S9 j. X* Llet j 3' x8 W' A& f, _8 _1 f% C
let k 4
. M/ t4 J! B* |; h# x9 Rwhile[j < trade-record-one-len]- d" f$ Q& f; u9 z, c
[
8 w1 G0 E1 \7 kwhile [((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 Y1 m$ B, D3 o
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). w/ I1 U# M# T$ t# P4 Q
set j
7 F0 y5 M9 A ~; e% i( j + 1)8 c. c. A2 h% F+ Y+ y
]) x/ ^6 v8 i6 G" V2 N
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 ))
* I9 ^" p; F9 ]& w: K" q( q1 |( d# G- Y, R2 `! Y; P( X
9 c' b6 b: c+ ~( k' I
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ y& a2 y3 i9 D. K;;及时更新i对l的评价质量的评价7 o2 m+ F' |9 L3 I3 L3 X* b
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
" K6 L3 q; s1 K1 Yset l (l + 1)
; s% Z) d; S3 n1 J( ^]* g# v" M: \5 S* `% U* ]" i& q
end
6 P0 a5 T9 v0 w" C6 p9 {4 U0 \* |3 l Q, y
to update-credibility-list
! k) t$ y0 [6 Z- B+ ]let i 0
6 p4 i& A6 S# e: ?% T5 ewhile[i < people]* U3 h2 [0 Z! d3 ?) F
[( @) l2 C1 W' `) e1 [7 f/ a
let j 0; t# N& ], I* h8 ~$ F
let note 0
8 u7 [6 p1 F8 w7 Tlet k 06 J- D# G7 g0 u. T. v" I
;;计作出过评价的邻居节点的数目, n% z: N5 e( B0 M- f5 w3 A
while[j < people]4 k$ H9 x9 Y9 q7 f t! n, x
[
4 ~# R" T! e* I+ K3 D$ N, f+ rif (item j( [credibility] of turtle (i + 1)) != -1)
# c& @# B: D5 f6 W0 E$ G;;判断是否给本turtle的评价质量做出过评价的节点3 N/ W- c, a: A o
[set note (note + item j ([credibility]of turtle (i + 1)))( a2 \1 Q2 M; \, J( \' p
;;*(exp (-(people - 2)))/(people - 2))]
* R: l( s5 A6 L2 eset k (k + 1)4 [4 }) d P) Y" }% N; u
]/ S6 ?+ d; A3 r& t) j' P
set j (j + 1)5 J3 v/ y2 j2 v/ v
]6 w( F! I! G8 {1 b
set note (note *(exp (- (1 / k)))/ k)0 ?+ l( u; ~1 I1 H
set credibility-list (replace-item i credibility-list note)
0 i( V2 r7 g* w# L1 B" h; j$ Uset i (i + 1)) r! @+ i5 U! P4 s- H, E* x
]
/ z( R7 @( X4 s3 \/ m* nend' w4 l/ I- t2 I. `! b" S
" o5 U8 z$ s: [ D6 F# a
to update-global-reputation-list1 @) B0 Q+ ?. o# t
let j 0. U: y% I* d* [2 J
while[j < people]: [$ q* a' u' E2 v! W) N
[
2 k$ B6 j2 a/ `2 Ylet new 0) j- D& q; y) h }1 M2 }0 W
;;暂存新的一个全局声誉0 w* L! O$ Q% \( _
let i 05 g% V+ C( o% y8 {- M; E6 a1 V3 }
let sum-money 0
" g* p, W) L0 x! I8 {* jlet credibility-money 0# w$ e1 X1 r6 E
while [i < people]
$ f9 F; v ^/ }3 W[
" r! _+ ?% u( K, f' Cset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
' ]9 n+ M: w+ }- Vset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))) j/ c! @7 c' n3 V
set i (i + 1)
" v8 B. C/ ]0 J- { @]/ d, f+ g( q- w* K
let k 0
+ y" S: C3 _+ P$ l% Blet new1 0
* ]. Z( ^/ W1 e& s0 Jwhile [k < people]
3 e( x9 S5 j8 P# v `# [7 j: S# Y[
. Q* b+ q4 I2 G- V2 X% F" q: Zset 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)
4 _+ J# f5 P4 G) y- Y- `set k (k + 1)+ n9 t7 @( U% Y, _4 _! t
]
, K: V* v7 A' o/ Nset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ p9 a5 l' U8 h) j5 s$ J# l. @- Vset global-reputation-list (replace-item j global-reputation-list new)
* W. U1 t- O/ P; L% lset j (j + 1)9 R7 H- C. @6 U. s& n
]
2 c/ w( B1 K, X7 u0 ]4 eend" j' F; p8 A: Z4 w& z# p2 y9 L
' c! {, U* \0 z* G) W9 t% p7 M8 ~- j2 A* ?
3 K2 I% O C* W; Nto get-color
8 x$ _2 d" i2 D6 m9 V) q7 i
6 K" I7 Z2 f+ i o( F4 I4 tset color blue4 J! w B; [9 L
end
" Z7 m7 [5 Q w& j% M4 y1 {! R2 T6 |7 s7 S) L* f v$ H
to poll-class
5 l$ K8 P% A6 G1 [+ qend4 a# X; A$ k7 Q
! o# {" b, Y+ h% q+ ^2 T$ l
to setup-plot12 d* E* v$ f9 T8 r
; ?( y1 M( d0 U" \% Vset-current-plot "Trends-of-Local-reputation" p- I* }+ d4 t$ I9 G6 S
|1 ?$ Z5 Y# D9 W* n# nset-plot-x-range 0 xmax
8 C. j6 T; O( D0 r$ ^/ d: n, u" N2 d% x+ |6 I) t) q/ Q% E
set-plot-y-range 0.0 ymax/ C- P% K8 _$ R3 z$ h* e; b, s
end
' o+ Y7 d% {; r) f* Q; Z. ] `8 O* r/ W
to setup-plot2) P6 W% m: ]# L7 h6 y& T. [: \/ V
" o1 ]7 V; U5 e: e; qset-current-plot "Trends-of-global-reputation") a- H3 o3 ]+ V; Q$ g
- M& T5 J" ?/ j" l: u8 jset-plot-x-range 0 xmax# M [: u% J. I+ k" J# E. s. v
0 R5 T& J, l! r' {9 Yset-plot-y-range 0.0 ymax3 \8 L$ m9 X4 _8 a+ x# Z$ A% z
end) S: m1 u* L; E- X. Q8 q8 h
$ [5 H' D7 Z$ v7 m# l' X( `to setup-plot3
+ D9 x4 j) |2 b4 I0 d& F. Q8 K- ~* Q- P4 H
set-current-plot "Trends-of-credibility"
6 X* k; T! ]9 |1 N3 X& U {, r; A8 f" v9 f8 l1 ?
set-plot-x-range 0 xmax
6 ?& d! @8 f5 q% ^' ^* [( U# {# ]" c) j$ A" r
set-plot-y-range 0.0 ymax. J* n- v, }1 Q, ?4 q1 O+ J
end
5 t9 q5 Q5 g9 ~7 N' ^; Z) L' U+ I5 s# j$ C
to do-plots
: T& _( K8 V2 u# d/ C! b; Cset-current-plot "Trends-of-Local-reputation"$ d+ K8 b6 `3 X9 V# l( f
set-current-plot-pen "Honest service"
4 Z5 k9 f5 o7 E- X6 W' Oend8 ~/ u" g; @4 d1 f$ \( A: w
' n1 K0 q+ k \/ F8 }
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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