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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# _; l7 @/ \1 N
globals[
# j i: a% P. G5 M6 p& B7 f% ?; O0 oxmax+ Q( `" |" S" e9 r+ [" i4 P" W0 L% O
ymax7 K4 _* z4 F, x
global-reputation-list- O. V8 T4 J4 v# t# X a
3 u4 |6 h# T6 \! M6 r! g;;每一个turtle的全局声誉都存在此LIST中1 d6 o( |) S* T# i+ z1 f/ b& l9 z
credibility-list1 S" w! [1 y# d6 p9 G
;;每一个turtle的评价可信度
0 ^ A2 i, Q ?/ ^honest-service
7 B0 o7 k* L. @8 Q D& z/ vunhonest-service
% ] X$ ^7 T4 b* ]3 uoscillation
: f8 ^ f# U9 f4 ]( Nrand-dynamic3 P; I6 x4 X$ p
]
; a" x+ K) E, A
! `! ?9 U$ A* e3 zturtles-own[0 E/ c5 p7 ^2 z
trade-record-all
: U$ H" y' P, Z/ }; _8 i;;a list of lists,由trade-record-one组成
% d! e% @. Q8 J0 m& Atrade-record-one
0 _5 u; E# {- o8 j0 o m;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录- C# |8 C: Y. @, ^ T
2 Z# j, D0 ~/ `) L# c
;;[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]]
/ Q8 H5 w: j* h* ^- _) Q& 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]& ?6 E. U9 D; s/ ]+ B
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
: Q- |6 A/ D V- @neighbor-total, f. R3 H! C/ m* G3 Z
;;记录该turtle的邻居节点的数目
* @( g# o0 [: htrade-time
6 C8 F, j6 Z4 B& Y& }7 C9 i) Y;;当前发生交易的turtle的交易时间
6 \& g, ?$ z; M' J. |9 Jappraise-give
$ R A4 o& w" u# p) w;;当前发生交易时给出的评价
$ \! p1 j5 A2 C/ Rappraise-receive
3 F' b) _0 ?& n1 H$ t$ j;;当前发生交易时收到的评价
5 k% k$ g6 P6 ^8 W2 {; {appraise-time
$ w0 S) i/ w F& e0 _- c- T2 N;;当前发生交易时的评价时间. r: i& O% S4 J% w4 K& ~$ {4 t
local-reputation-now;;此次交易后相对于对方turtle的局部声誉3 s3 N2 i7 U4 Q
trade-times-total6 J2 ]5 j( p* S- N: a% a V
;;与当前turtle的交易总次数1 l! Q& ]0 x' U/ @ d
trade-money-total" i; a0 X; Y) V, Z2 c
;;与当前turtle的交易总金额, Y& Y/ x0 M! o* ?
local-reputation
5 j2 a1 C% }) Kglobal-reputation
( k% t7 m. h. m' {0 xcredibility6 T+ C, A' ^9 d" t
;;评价可信度,每次交易后都需要更新
+ i9 H* j) _+ f( d: c" ncredibility-all7 W: U2 ]$ c ?0 g: z. Z
;;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
( P; D- }4 k- i" @) o
# p" o% V, O% ^% y6 x;;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; p; s! e% L+ f( s. D! d
credibility-one
$ \$ z8 O5 d8 a8 h Q4 h; 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
2 m9 z0 |3 A/ N1 ] Eglobal-proportion
( Y. t$ n; q- r. w9 p+ Hcustomer
- |# W1 d& r9 S: U% \customer-no
( L4 z2 B" p! V0 ~" {) L7 I% Rtrust-ok
0 N: `6 w, M2 X. H8 wtrade-record-one-len;;trade-record-one的长度
. x: C, c- H, a+ @9 Z]
7 x0 q1 W, m) q/ g% o, s3 I* `0 t( w0 }( D
;;setup procedure
* F& Q3 Y) `, u; J% u$ M1 E+ @* N0 k3 ?& u
to setup
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% D4 l, r& p/ aca8 N9 b2 a+ C; Q
; C' x9 F* X! a, i* B! I+ p% binitialize-settings$ g) r! @4 ?' O# E2 T7 }
* ]* Y# f0 C+ f4 Jcrt people [setup-turtles]1 E( @1 L% R7 L! E8 j
" F) m+ X, ` y# p. @# e3 Sreset-timer
) M R( S6 q8 B2 }
6 T. ?& Z5 P1 A" f- b( L- g2 opoll-class
8 B: S* y2 Z. y/ H" ]. J! i, v, l6 ~& a W2 N
setup-plots7 v( a7 N8 I2 {& z% S+ _6 z
% e3 A& H: K- M# Vdo-plots4 r" l. h% q7 l
end1 {: |; X. C* V8 p3 }. U
6 l2 C' H( b" C, i5 U* A5 V& Y, ^ Uto initialize-settings
0 ~- m# X4 {0 V" z2 Y+ P
# ], k, \* E1 z tset global-reputation-list []
- k8 R8 Z8 T9 `& E& {* V! f. W7 y% T! f. W V* l0 h/ q$ e
set credibility-list n-values people [0.5]
! D, j) g0 x6 O( P7 g( y
- C# u. t/ X9 P9 w* Uset honest-service 0
" F& a' O1 Y- R
: p$ H1 v) y# R* A5 j2 d ]set unhonest-service 04 v! g9 @( O# w
9 [' W) X) S7 d0 V6 g& M* p4 Dset oscillation 0
) @* v- u- H8 \2 l2 f3 `+ f+ f% [1 M/ f* e/ P a' c L
set rand-dynamic 0) X6 }" V0 {' c# M
end% t* E+ i2 S8 U$ Q P5 U
% @7 B) R% d0 m, \" Oto setup-turtles . p0 _" ~# B J* L
set shape "person"8 a: M% u. g( {4 P) b, O
setxy random-xcor random-ycor
# G6 y) h1 T) a+ I; }/ ?" ~set trade-record-one []) s, [& d' F& X- Z. o6 r
3 _, M' N+ Q4 h0 u0 @3 F8 f2 j
set trade-record-all n-values people [(list (? + 1) 0 0)] + W# f5 s i8 E% j' J
' r9 g4 s9 X$ M3 [+ O% ]/ Kset trade-record-current []9 L8 E' o5 h* I/ Z6 O: ]
set credibility-receive []
# N6 D# N: |9 P: Qset local-reputation 0.5
0 H7 o+ j, h& t5 _' iset neighbor-total 0
0 E5 Z0 R) _) u- J6 {5 B) _6 Zset trade-times-total 0
% |% Y" ?* N9 t& F; ~: L* fset trade-money-total 0: X: {4 k2 _- q3 x3 r! n) E; P
set customer nobody4 w2 J+ k% F" l; P
set credibility-all n-values people [creat-credibility]
4 M( m+ D$ s0 E6 b, W: X1 A+ m0 ^2 lset credibility n-values people [-1]0 A6 p- E8 T6 f7 k
get-color
( Z2 \" v, r1 O
7 h d) `, X/ kend; ?) J: x c; l- o
: q# o* N& V4 v
to-report creat-credibility
2 K) B- u% H9 a& o& N% }6 Ereport n-values people [0.5]
t; T+ I5 W. B, L" g0 Vend7 x4 c3 y* |' O* Z
" z" g% p7 U. g& M# O3 eto setup-plots
2 o+ [8 e* ^1 {. o$ k4 [' W8 I. c8 l9 e# X3 H- y
set xmax 30- M4 e' E% o7 Y/ Q1 P8 m" g: t
$ `& p9 g9 S; A
set ymax 1.0
# j: O2 ^1 L! v( E- t. I! g+ w
0 Z0 S, E) k. ^$ s* A7 \clear-all-plots
6 `# d4 V& E! k: ?& @* W! ^6 q# _! G% E0 W9 a6 Q
setup-plot1
" m5 e! k" E' |5 i/ p( U7 [' g' {
9 F+ X" f9 |- S, J# e% z. rsetup-plot26 C) f5 g! F& i* ^/ @' W9 |
* Z$ V: W& H4 t
setup-plot3, O- C& J# G7 a* z
end
$ x) i' Y) s& _ |" l) h% c9 }# d2 X. ~; [5 E% Q7 y% t, p' I: h
;;run time procedures
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to go
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8 U/ r0 i$ C7 Xask turtles [do-business]& X: h. t% c6 g
end5 x9 L; j6 ?5 D- A* W
5 C" z3 v( O) V$ A3 X6 b
to do-business 6 ?1 c5 l1 C" q' D( Q
6 O ?* D& P, `3 Y, m) N
% [9 Z" U; d1 v% P. f" {; f# n5 hrt random 3601 c0 {/ o7 |! _6 o* Q
* w l' N4 Z2 Q# A' `$ Jfd 1
, m4 u. a. Z' B/ E9 y o% X, m4 X; ?! ~ k. K2 C6 r+ i! o1 Y
ifelse(other turtles-here != nobody)[
% \+ B* O& X4 Y4 ^9 V: G" x, s
# Z3 |) s9 b8 L& r4 b% T7 b5 }" E- {set customer one-of other turtles-here
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. z3 B& Q8 R; A. o; p% e;; set [customer] of customer myself, J; l5 g9 `5 z1 S( A- V
% \: R5 j; M9 z% o5 v+ G- i) E* T* ^set [trade-record-one] of self item (([who] of customer) - 1)
' ]" n, M' |% W* K6 }[trade-record-all]of self" Z* T! K$ q& Y8 @
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ j. C y. V% J& b6 o: y a
2 d" V) J4 H4 H3 A4 ~set [trade-record-one] of customer item (([who] of self) - 1)6 ]3 N, C8 x0 q! F# v1 x3 N
[trade-record-all]of customer* D; T$ ^+ W7 s5 M! V
. }& y, R7 ^7 _) a1 }/ f% dset [trade-record-one-len] of self length [trade-record-one] of self! p- P9 h' P1 [% f1 W5 k
; p- ]$ n/ t9 \ ~5 _set trade-record-current( list (timer) (random money-upper-limit))
/ L3 F' V- B8 F7 { D: g9 F
$ w3 R0 `& k1 V; w# m2 kask self [do-trust]
* j2 ?% A6 J' p8 ^;;先求i对j的信任度+ P: R( @2 m" F" w
o4 Y! V/ {. h; ]# b: G5 f
if ([trust-ok] of self)
+ c2 z1 {# K4 b, q, }; g" g;;根据i对j的信任度来决定是否与j进行交易[: p- u' ?4 ^; P
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself$ J5 h# d$ _! \1 a9 x0 R
$ i( l3 z) S) ]/ J
[
% f/ ]+ [+ {; \
- j# _6 s% ^( R& f/ k7 Wdo-trade
5 e3 c. G/ Y4 y! f+ Y0 V1 `, {7 h* g8 G& ~# S
update-credibility-ijl. a5 T% l, i2 d) m: Y/ s9 L
% d/ x/ p2 x1 D6 q. v9 Xupdate-credibility-list
& j- T, P5 k1 M7 t" r$ m9 T3 v) ?6 l( `9 d+ G
% L E2 z7 H9 c
update-global-reputation-list
' ^1 ]' @9 S4 X1 R/ a# X; j. T3 c' d/ S$ d* Y A% N
poll-class4 f$ B! a( X+ f( ` s
1 `0 u/ O. e+ J: d" m( t9 E4 L7 Dget-color
# ]8 K- t/ }6 h" ~3 v7 z7 s% l/ J
/ @: k- e' Q" h# b( }) o3 p]]" ]4 e0 p7 I; ^6 P& w8 ^) W: p
1 V+ C( \* Y0 \4 \, p7 p;;如果所得的信任度满足条件,则进行交易" @7 Q- X- M- h# e# ?
) a: n+ O+ q9 [, B6 v[
+ H3 s9 d; N! R6 g( W: U
% M2 Z5 O- ~; C) b+ X: ]rt random 360
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( x# U7 `7 |, t5 Tfd 1* E, d# x" C+ A+ @$ R4 s ~+ l
2 m5 y% W1 M1 f: k
]
& q) q6 ~0 ~7 I& _
3 x% z. L5 ?! Y1 Pend
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to do-trust : }9 i3 i6 [2 ]3 ` W* \, C: U2 X
set trust-ok False
. }. y2 s$ S4 _
% R7 Z* {9 G. h( j/ w. j7 W5 z d4 V7 E; b' s2 }2 Y. t7 V
let max-trade-times 0" @0 J) B& r, }0 K- L
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]0 I( u- g" n7 R; ^) B
let max-trade-money 0
. c& h; ^9 O' z, j& U) _foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]* B8 u) y, G: 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))+ c; G& J g( E+ N) ?
* ^8 M/ S8 `- c B3 u$ Y
/ A/ l/ m8 g W$ ]: hget-global-proportion( k+ s* C8 B0 _) S* I, ?
let trust-value
1 X* a: I0 |) Q4 B( rlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)- y$ H) u2 @; @6 q* V
if(trust-value > trade-trust-value)0 ?# t* l! S O8 J
[set trust-ok true]: ]4 Q4 U( d5 u' _& `7 e1 g; Z
end
& i6 L. z- b' g# F, C. X- f2 R# v& K% u4 |
to get-global-proportion5 q! m Z! r5 D) l
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)" S/ f0 ?6 ~; U' W* n* Z, f
[set global-proportion 0]
" G, ~' K" b: s% A/ l[let i 0) W0 w" p! `; _2 L/ \/ l, Q) p% o# B
let sum-money 0
9 v9 V9 i/ B/ X6 L1 bwhile[ i < people]
9 {9 w# X. O, N[
3 L1 ~3 N4 r3 Uif( length (item i
' X: S, j/ x/ i3 G# ?[trade-record-all] of customer) > 3 ), P, e4 K$ y' x/ a5 x
[) V6 a$ g& K% `1 V5 G8 u
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
0 Z% R" `$ [7 [. @2 U]4 j, S7 ]& n2 i0 K( ` D j" t
]9 [: r: L/ o5 b* ~& E+ I: s2 y
let j 0$ t( n% Z( b3 e
let note 0
( b) @$ m6 Z5 I7 ~0 m, Bwhile[ j < people]4 T9 a0 `" h1 U9 p+ N
[
: H8 I/ [* D. h# E9 B& xif( length (item i7 h; V% ]1 _! E/ X$ U6 u% ^
[trade-record-all] of customer) > 3 ). e5 T9 z2 b, `3 e
[
+ S* B: o, Y+ @3 O! N, iifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)* ^6 Y+ y; b7 s4 c o% F6 {6 y
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
3 {3 {& I- g$ `* P1 | A! i+ m[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]# g- q6 h1 o( V* }- H6 q8 U& Q5 n7 w
]
4 e3 c$ ]( g) z3 x" F! s* t]9 ?; ]% _% s: y0 E" P' X
set global-proportion note
r( V; D* z3 H]
+ `' q- t+ H# Z2 W5 A* Tend( [+ B. ]' ?) ] k: U+ |
7 Z" A# j4 R0 t& ~to do-trade* N! G' S) G H
;;这个过程实际上是给双方作出评价的过程$ L. ~2 C) s+ ]& R7 H E" Q0 _
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
$ q, `9 M+ J' M0 `3 v' z" H$ cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价" U3 k1 n' t' ?; }# z0 a9 J
set trade-record-current lput(timer) trade-record-current ~& H- Y6 S |" t d! t
;;评价时间
$ O8 o3 i8 e; `ask myself [
6 y7 A. Z# x* ^5 _update-local-reputation
, ]/ k; P" V# Aset trade-record-current lput([local-reputation] of myself) trade-record-current4 O# u6 [2 x. ], B
]3 {" H. K- b5 Z9 S. d u
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
: U' t5 `: D# T$ t' j* J;;将此次交易的记录加入到trade-record-one中
/ P! b" ?* h0 S0 u/ Zset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
9 z& ?0 y" \' [* {let note (item 2 trade-record-current )8 c3 E: E, p# q3 h- |
set trade-record-current
! o1 Z2 R# g9 r- F. i/ M(replace-item 2 trade-record-current (item 3 trade-record-current))4 n% f0 K z# i
set trade-record-current1 o# T5 v4 X4 R# @
(replace-item 3 trade-record-current note)
K! @# h9 K% c/ T' P7 z0 a$ c7 ^- e
, p) c9 c8 e* P+ I; [3 q
9 l: d9 N7 ]* [# |9 N8 Pask customer [8 h0 O5 |8 C O) V" d/ [& Q% {* S# ~
update-local-reputation
9 S: @6 Q1 V: X" n Hset trade-record-current
5 u- ~0 F+ [0 h$ L5 R2 K( M& G(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) " U% A' L. H" W& M
]
, g+ P/ b( ~/ W2 e: r$ n& w
" g9 h* l8 M: H$ L2 {( p' F* X' z1 I+ L! L' o8 C/ F
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
/ J) {: x4 m4 Y1 b, k7 {3 Q( a1 T* W% j9 [
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
" ^' {7 C6 f [;;将此次交易的记录加入到customer的trade-record-all中) a/ P2 v! M1 O5 H' w. c( c
end
/ L V1 \8 Z( F
, H+ Q% U6 J1 h/ z0 n7 X7 h0 Yto update-local-reputation, @# [+ i" W! j/ ?
set [trade-record-one-len] of myself length [trade-record-one] of myself
& o/ H2 N/ p. Y) T+ R! h8 P0 W3 v3 r8 G6 g+ }
f) i3 O, K6 j/ j;;if [trade-record-one-len] of myself > 3
: G! w& v4 i4 yupdate-neighbor-total
$ ^9 V1 {) @3 w6 r% d! _) v;;更新邻居节点的数目,在此进行1 j- P9 ^9 B5 ?3 M, c8 H) }" N
let i 3
, D. z4 p4 K( q0 v' H, ~$ l' Ylet sum-time 0
" ^/ ?/ F5 \* _9 i# _% Dwhile[i < [trade-record-one-len] of myself]
, N' {& ~2 m# o+ u* }) S[# p1 I: u! J1 Z$ H
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
: n' ~! ~4 M2 }; \$ j4 N; pset i9 ]% T, M, X. @* k' M, |
( i + 1)
. u9 ~1 Y2 O4 h6 n], F* v1 a3 G" q" D0 l) X' b
let j 3
+ }9 b5 B, U v; ]2 H( F9 glet sum-money 0
% F8 w8 {, R' [( Q- ^0 E: a. G4 Awhile[j < [trade-record-one-len] of myself]+ y# B/ X; F" i' @
[9 @9 O- B; U. n5 Y9 X2 |& z* {8 Q V
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)
/ @% G& m! U6 r( {# Fset j' J/ t, c6 s5 \. c) K @0 ^7 l" W7 N
( j + 1)
; K7 g* a/ k: g7 f0 ]% a]
7 M" Z7 y; ]; V. }let k 3- ~6 b& f, |* B! Q: z! z
let power 0
) r" I8 B$ ]. llet local 0' Q' O' |1 g8 l! J
while [k <[trade-record-one-len] of myself]
. r' n. I2 s2 w$ n: O[; z. k6 u) K: c1 o6 {, v; d
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)
5 K8 h: j& a# q$ P- [, Jset k (k + 1)
2 }- X$ o" O4 x. []. i- S2 n: S$ h( w( ~0 ]' L# x
set [local-reputation] of myself (local)
+ A$ ?. ^0 }' M& ^6 O# N/ i. Rend
: {+ @5 V/ O! N8 s' B
) x. J p" d! h1 Cto update-neighbor-total7 ^ S& D* Z* p8 f0 M
" t. {+ u+ M% t! t- S( N5 Uif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]) h! H$ q5 Z, q$ t
: S# v5 j0 O+ P5 m! }. r$ z0 s
- M, Q; D D9 q) S
end
. Q( A. |4 r4 j# n K- q6 @
2 }7 e. A) i: M) B0 F Uto update-credibility-ijl
! M" b; m1 d) ]1 b" r' J6 W9 I X$ Y7 _7 u, h( C
;;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 k6 F: |6 D& l/ plet l 0
* h; ~6 ]5 } x3 E- _ n, Awhile[ l < people ]
/ Z4 J s1 G! v1 Q;;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
5 Y) p$ B# L. ]8 v8 g; i( c[8 k6 U# Q/ f; n4 w; Y1 Z
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
* \2 j6 j Y: ~" tif (trade-record-one-j-l-len > 3)
: n D ~" ]' W0 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, M9 r8 w# Y* E* [, w* f. P" ^
let i 3+ L; {" n E( @; Z) S: X! F" h6 m
let sum-time 05 n7 D, \7 X( G0 ^( l
while[i < trade-record-one-len]0 s b( i3 j( z1 r9 E; q
[
/ Q7 j4 l' i uset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
, K4 P# ?& O6 t7 _- F9 j% ~+ A6 oset i
9 E" G5 W0 m+ t7 E6 b% W) X( i + 1): C1 P3 D- l6 V7 Z" e) x$ f
]3 H' A% O# F: ]/ u7 ]' b/ v0 x9 A
let credibility-i-j-l 06 z( T( x0 I7 t: P
;;i评价(j对jl的评价)
, D, y- T: V9 |3 X7 Y& alet j 3
2 A- [6 t* b4 B5 H3 m( glet k 4+ }2 x: I/ X# Y" ?& z
while[j < trade-record-one-len]
6 p5 H1 f/ l4 h' G) ][
( U+ W" U6 o8 K8 q2 x' e' Cwhile [((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1 C4 u$ A' l% G) q& ~
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)
+ U. ?6 S1 R b4 D8 w9 n4 m5 `9 rset j. q" C- ? C: g4 W& o
( j + 1) s( i& e- u) g5 A9 U. c" h3 t
]5 I2 W% u+ ]4 ^2 N' `2 t
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 ))
6 \8 h+ x+ F: R, ]2 n4 p
- P. e4 Y: e4 ~6 O1 \
5 u- p) @8 z$ P" q2 E5 `3 y; Hlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 U1 B7 m, I# a2 l( B1 E3 e;;及时更新i对l的评价质量的评价, G% `- y+ `9 O C4 y
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]* b# ]- a5 d0 }2 V( q( n
set l (l + 1)
s) W9 ]% D3 c& p* f5 X]
- }* z/ [( t9 s' oend
' i8 T) \# j8 G# R: | |" A- O0 _# @# L& |3 H
to update-credibility-list
1 K* C. l( ^' B' N; S& c! z: tlet i 00 |/ A, u$ \, u/ O
while[i < people]6 C: Z; C3 U" ~* s' c0 i/ @# J" H
[1 Q I8 U" i$ v$ V- K
let j 0, @! ^& x$ v( b- S! z
let note 0; j! J9 {+ J# y/ d
let k 0
) @0 D" O/ i7 n$ U8 L/ S6 r;;计作出过评价的邻居节点的数目
2 d* M# e3 v$ F! {while[j < people]! [: l9 u0 U, [' C8 O' ]) i
[
' i* G0 X- k5 Tif (item j( [credibility] of turtle (i + 1)) != -1)
2 a% h- d: n! C1 i7 [; E: Q;;判断是否给本turtle的评价质量做出过评价的节点
3 ^4 N9 l- c( Z) R[set note (note + item j ([credibility]of turtle (i + 1)))" r: i& V, y9 X1 [) Q$ r/ a
;;*(exp (-(people - 2)))/(people - 2))]; P8 b, `+ j& F# l* a6 c! F1 R: `
set k (k + 1)
. I% I' E$ @0 L]
0 m" M( w! B! |" l) K7 Rset j (j + 1)% ^3 d9 z% O5 f$ ?+ X0 p4 @
]
. S7 a3 Q# x* [4 y4 w- m# S) x& Uset note (note *(exp (- (1 / k)))/ k) y4 `( S, t# I* v% \! U
set credibility-list (replace-item i credibility-list note)
5 Y1 x, C. I% |2 Fset i (i + 1)8 [0 g4 t" T" d
]7 D7 F' R, w) i
end' A4 D! h; j( F# s; V) T6 M6 d) p
. A& e5 O3 t& t+ e3 I+ R6 jto update-global-reputation-list
5 K0 B2 u1 y8 V0 @! @ @; n$ Hlet j 0
2 I5 A, g) A# T$ ?% | Pwhile[j < people]
( x/ M: E1 i1 M* k. l- |' d[3 L3 e/ I; |+ ^3 f3 Z9 z
let new 02 C' ?6 b. p; c9 ^) E
;;暂存新的一个全局声誉
# z- g3 j* L5 r ?" e' T1 J2 }% b; o/ S, Xlet i 0
" @3 J$ T9 O2 O2 d+ v/ M: ulet sum-money 09 P& b, F9 g& A6 W) D, \" ?: V
let credibility-money 0
) ~, Y/ t$ o! H) {$ M$ Dwhile [i < people]
* { x! j6 _0 z[3 i5 M. f% \ }- @- U' _1 r
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))- H; X3 m" O) X1 f
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 a6 w, U+ Y8 i9 t; w1 p, \set i (i + 1)
1 n$ s# a) ~3 \/ N]
: U- o7 ]! {) f8 U2 _9 Hlet k 0
. g% z! |# ^/ y) r/ X( L3 P/ A Elet new1 0
: |9 K" G: n* N" G" P2 Xwhile [k < people]
3 v9 _' ^2 C$ i$ ~1 R[
$ D* G u; ~) m7 rset 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)) _* k4 n8 `' {' D+ V
set k (k + 1)
: y! F5 B* r* r: }" r]0 f; @, w0 L3 L, I$ t; A5 ?
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ( U+ F' ?) ?9 V0 K# f7 T: p
set global-reputation-list (replace-item j global-reputation-list new): H& J: {3 Q& N7 I7 J/ k
set j (j + 1)
, N2 U" `8 O1 ^! k; r- c]7 d) i& n9 f) C$ [' R" ~
end
) _: E, d# _# b$ k: u1 d* x+ o: ^% W6 P; K& W
, q T) G+ ^4 Y @
4 |6 C; r! a- L f4 p/ ?to get-color
1 t5 Z6 x2 F; u; K b% L
' Z [, p5 L9 B+ z4 Zset color blue; }+ A& O; o4 d2 A6 h7 V
end
: a+ K7 c I. a, y
, s' P' E+ H8 T: h( q0 c" p# f) Wto poll-class9 c$ a& N6 W1 B) S; [
end
* K! }, W# C2 M/ @0 w% e$ m6 M5 }0 d/ ?, L
to setup-plot14 N2 J% v( }! e0 z0 V$ a
: l( c4 N, y2 a$ L X9 mset-current-plot "Trends-of-Local-reputation"# H* ]) R: k- f$ q! `4 ?" l0 |# Q
/ O7 ?+ Z- }& _4 g+ X; M0 Pset-plot-x-range 0 xmax
% F l; \0 {& [$ p1 @) ^- Z
3 ~- W) B& O- R. f9 I& D# tset-plot-y-range 0.0 ymax& m7 b1 B& O5 F! f* ?$ s) v
end
" r2 c" X' j/ }+ {5 P
- a) k" V5 |" h5 V* Y3 \! Wto setup-plot2
U- N8 c3 S5 Z- s+ W8 I) p; {6 V, g4 u% g+ i
set-current-plot "Trends-of-global-reputation"
- l3 S1 N* d7 i" A. m
0 I3 w' X) h% @2 |9 P6 L' z6 {+ cset-plot-x-range 0 xmax' V( @9 g! p/ i7 Q: q
6 T- d7 \5 K" V
set-plot-y-range 0.0 ymax; |! v+ P( A: e. X9 \ F
end5 e) F! | D6 t9 o" c
" C5 E* Q, T( Q. ^to setup-plot3
6 E: a1 J- t( g6 w# v2 X# q9 m7 ^& S: w! V0 \
set-current-plot "Trends-of-credibility"
* E( ]" M0 q& O( Z8 ]8 i0 }- _- o* B4 |9 q6 l' P; N! Z, e
set-plot-x-range 0 xmax, u" E1 U9 w4 x9 B4 J j, |2 M) h- ?
, p% B$ [8 d6 Y- oset-plot-y-range 0.0 ymax
a/ l' L# a" `/ c/ t4 gend. [) E/ S7 P+ q$ l
0 Y7 a% @" B( q+ m% R* ^: A* a+ y- U
to do-plots" {" c+ S# r) a: X
set-current-plot "Trends-of-Local-reputation"
; J% X& ~& \# }, dset-current-plot-pen "Honest service"# l5 T* G# v6 _" w
end4 a2 e S$ q- x
* f' @: B" D, B- G3 [5 ]$ A
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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