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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9 w& P+ f6 Z4 ?' R' m0 b
globals[
2 C; q# T5 W. Z# Y. e2 Rxmax! x# A5 q$ D& O
ymax F7 M* d6 c: }* s8 H1 V
global-reputation-list
8 R) T3 D `. ?
% E. _& U: C: ~& T5 n( Z;;每一个turtle的全局声誉都存在此LIST中; d2 M6 l% b1 |7 g; T; {) J
credibility-list- O2 F( F% R8 o! A1 G8 k/ \- G7 k. i
;;每一个turtle的评价可信度
9 f5 [" T. X/ L0 B8 fhonest-service
. V: ]* i3 p, I* f f( ^8 Qunhonest-service
& V# I6 t- d8 T/ c. i, p% o6 @9 Ooscillation
! j+ x! ?8 ^" I: {rand-dynamic/ t; _2 G% t f& P8 i8 [) M$ o. z# ^& |5 W
]% ]' O1 d% b, Q' r
! S, I: _$ B" P2 ?2 p Z0 Q! |
turtles-own[5 V3 o# B, ]: o% b d
trade-record-all4 m+ T; T+ R' z1 M3 c
;;a list of lists,由trade-record-one组成2 G1 c4 B/ B5 |1 b
trade-record-one9 {3 y. `( v% _3 n4 Z
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录% m$ ?( R, A7 B/ m7 R
) n% d H* I! Q: U+ ~
;;[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 M' V2 Z/ S# M1 K/ M) p, g- r
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]
3 ~! V2 H. {: Q5 w; ]6 Q6 d! Wcredibility-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' l* H( Z2 j U- @
neighbor-total
7 I' ~" Q6 V# t7 M;;记录该turtle的邻居节点的数目
. y; D6 ?# D$ r# O, K( _trade-time
& D% K {5 i5 x/ P* k0 u7 k;;当前发生交易的turtle的交易时间
6 s7 V. Y- V' i8 l8 qappraise-give
) @, L p/ T1 B7 G% d1 R" X8 l;;当前发生交易时给出的评价7 H" R+ _: n0 r& \$ @: a
appraise-receive- [/ S3 [6 V. |$ ?0 }( _
;;当前发生交易时收到的评价1 c8 s# E9 P% _! k0 C! I
appraise-time
% t% k6 p, X" w, r;;当前发生交易时的评价时间
: c# L0 G0 G) w8 ?% o3 ylocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
8 m* f ^$ Z3 s: G1 i Htrade-times-total
2 c2 j5 F( E+ i8 s! [;;与当前turtle的交易总次数
X( L" U9 j8 ^trade-money-total5 z2 w$ ]$ d) n
;;与当前turtle的交易总金额
1 l/ l2 q _3 v5 k8 v2 @local-reputation1 Y8 f7 {" j1 z3 Y/ _7 i
global-reputation; u% w) F( ?9 W
credibility; w$ N' f& b( Y- L% P9 `' M# Q6 N
;;评价可信度,每次交易后都需要更新
$ O7 \3 R0 `, c J: tcredibility-all" R9 M8 i: T5 o5 q8 L
;;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
* o! a2 j% ~ n) V- {: Z9 ?4 z8 }) d- v+ g, y
;;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+ R0 T4 j; s! R. W
credibility-one
- |* H4 _" |0 q2 u1 o" 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: ]0 P4 @3 A0 E1 p! P! B* |
global-proportion) u( z9 `9 T* n$ W* V
customer- v4 w- D. H3 I9 A9 S4 `
customer-no
' i4 P# G) d9 k$ p/ d0 c, Itrust-ok: D$ ]) |+ t7 s: ~
trade-record-one-len;;trade-record-one的长度
) ?* @5 {6 s& G]
) U% ~8 N6 a; W0 \0 h% [+ ~3 D" E
;;setup procedure
% e4 F- L# `4 j6 A: W
; Q2 k- v: `$ ?to setup
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* I% r0 u! M' ~1 q* `( P8 ~! rca' I# G& q- v+ G
" O% w% R% x: R
initialize-settings3 }1 Z' Y6 {* Z! r
$ ~: V% d& @6 q: I$ w. u
crt people [setup-turtles]
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6 e4 a3 R( r; u* hreset-timer+ m% {. S# w$ d% H8 G# w+ U
0 ^4 L# N& r8 |& G. {0 Q3 l. gpoll-class% I0 q4 X6 `+ Q& ~
1 d+ v; x4 s2 R) x+ L8 m
setup-plots
- c& l+ T3 l) a* z0 {8 c
6 J( `2 W0 [ fdo-plots' k' i4 }. D) b. I, C9 M5 ^
end8 x3 _& T$ v) L
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to initialize-settings/ D" p8 ]0 o$ r" M4 L' u
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set global-reputation-list []
' ]5 j0 {4 p. n8 F" c6 Z
# ?" u, K3 Q& K' O) }/ eset credibility-list n-values people [0.5]0 w3 E& S- Y7 ]8 i u- d
/ H' k- a" X* D) c. C6 @ {
set honest-service 02 `7 \! R7 q/ {( f5 W
; P8 D' Y: A" \$ _% `1 ?5 vset unhonest-service 0
9 d8 _1 F! x B1 u: F( h3 p: t9 P0 m" I T' B* v' \- ^$ V
set oscillation 0& G/ f j* S: W& }6 h- l
) R- G0 d0 t0 g7 g* ^
set rand-dynamic 0
6 ^) q, n1 @4 J2 Zend
+ C: @) }2 B7 e- K1 Z
, a& O8 N/ ^0 F; F& v8 U' gto setup-turtles
7 P& \& ?1 o6 G# Q0 Cset shape "person"
* G% ^: M! u0 E# E& t* |) a' O$ ]setxy random-xcor random-ycor2 `# W% ^: C8 D# R1 J& U
set trade-record-one []
9 `$ M: J$ B$ T% A" t& W m
1 m: T6 e3 q6 S# E. {6 u' `" @; fset trade-record-all n-values people [(list (? + 1) 0 0)] ; q- \/ _; e/ v2 m
- g- m6 \- [ h$ T; `& h
set trade-record-current []2 B2 Z7 L# K7 o' p" u
set credibility-receive []6 h7 j$ O: {+ D: x( e0 I* D
set local-reputation 0.5
9 v! e3 D& B i8 l j4 Z: m% Mset neighbor-total 0
1 u. x1 h, F8 m; p% Aset trade-times-total 0$ l" m. ?- u: `' C7 e( }
set trade-money-total 0
3 b U& W) j; ]3 `+ m' Vset customer nobody5 ]: |! l. z2 _" i) W
set credibility-all n-values people [creat-credibility]
. R9 a$ u8 Q$ y" a- [ {set credibility n-values people [-1]
& J7 Q4 n# d' Mget-color
& N6 ]2 K% N, F; w9 k
" X( ]7 W' j$ e* r, s5 xend8 I% D, M4 V* H7 n
B; c, N! t5 i& w% o8 }2 C
to-report creat-credibility
" ~# {( q" I- R |) d0 ^report n-values people [0.5]) Y8 w/ w' ?" e2 F3 x3 r
end) T8 e0 C/ Q( m$ E* q; L1 ]
4 S, z9 D% V6 _% x" S3 |& A% [9 I
to setup-plots
8 Y- e& S$ v% v8 p0 O( ]0 E2 j; r# W9 @% |
set xmax 304 _9 z$ |$ v& v3 {
) u' x1 x% f b1 x7 I% Tset ymax 1.0( g! v5 m t5 G5 P
0 _6 l2 O3 {# W7 D; ^/ k7 Z
clear-all-plots
# ?6 y0 r# K9 D9 U9 k% z; Q' O+ u! l- `
setup-plot1, K7 }6 k4 g5 }6 s9 u7 k- D1 I% t
S3 Z2 c; b0 F3 {2 e
setup-plot2
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setup-plot3
& L6 o' Q- w( Y: }1 P+ Bend( o; ~; L- s5 o# B$ ~) o
* P- n: G% s' Y
;;run time procedures
0 c3 c6 p/ j) |# t( {7 y+ t6 ?
: z5 J7 _; ?; ]to go* }, ^, x% ^0 ?( m; i5 s
6 Y* {6 H; \3 i- x( y: J7 ^
ask turtles [do-business]" E& g3 z, ` I
end' z( M# H9 L+ J" g+ |$ H
8 W. L/ u" g; ~5 `
to do-business / q3 b5 T/ M. T5 |
2 O E7 D# O2 M; V. I9 O. M
; y/ R. A# f* }1 I# srt random 360
; _7 Z# k1 [' g& h @2 _; j/ f7 V- V- b: L3 T7 z% a
fd 1
3 x) e3 _ g% n( Y; o% p7 ?. z) I- y
ifelse(other turtles-here != nobody)[& N6 f6 O9 E7 d J3 n
+ @& E- C% C H4 Q
set customer one-of other turtles-here9 i9 R9 |8 C7 Y# d# \" _1 J+ S9 M
" M1 I" Z" s/ v0 g;; set [customer] of customer myself
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$ k: g7 I9 Y; F& uset [trade-record-one] of self item (([who] of customer) - 1)
* O W" k A6 q) W& Y[trade-record-all]of self* g; V" m" |# a/ y' N8 Q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) f3 C- S* f& [4 {% P# i- n
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set [trade-record-one] of customer item (([who] of self) - 1)8 c- N% ~: ?/ n
[trade-record-all]of customer
3 U2 l+ {; }) Q0 g4 o; T3 A* W0 }3 e9 u4 c' R9 M( `; v# |0 B: K
set [trade-record-one-len] of self length [trade-record-one] of self' t9 o/ \+ A4 W+ P
3 V: z, G' W6 P! L# ^& m( A
set trade-record-current( list (timer) (random money-upper-limit)): I" h% S/ a# w3 O6 |! A- a
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ask self [do-trust]
/ H) g X$ e& }/ U;;先求i对j的信任度1 h8 W. S3 c$ n+ {# |4 t) t8 M, j
3 C( `+ q* ?- M2 w8 {- \/ u: ~ K
if ([trust-ok] of self)* d6 _4 z4 h* M! n. R
;;根据i对j的信任度来决定是否与j进行交易[
' F5 ?# W3 g: c; M" ^; a' Y+ [5 kask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
8 `$ p3 n8 J5 j8 n( a& s
1 ^# {: ]& p4 \9 \/ B: ^do-trade
+ v! u; M7 E" S; q$ w- i& B9 r" n, s0 u+ \
update-credibility-ijl! j! f+ T% l, P/ D5 E) @
5 E. ` S6 B( Q$ I3 q; R
update-credibility-list
' k& w$ ^* t2 H2 m' b& Y2 j+ `& e1 J" x. \ }+ l
" W; z+ T1 M$ |6 Xupdate-global-reputation-list9 t# U$ v6 M6 M# `9 ]0 \2 |9 n
* n% n- W5 d# V+ I9 T! E" j
poll-class5 q& K3 N6 l- @! {# n9 m
: e* d% }5 m! m! q) eget-color
1 D$ T* Q+ y8 v. P2 d% a) f6 n# _/ F
]]
6 p1 z; B. }6 q# F
( \& O8 c3 `2 W! \; d;;如果所得的信任度满足条件,则进行交易
) r7 `0 L7 j6 I* L0 h$ r& V2 ~7 b* F1 I0 {) P9 a2 D
[
% B$ J' B8 _ O; @8 J) J; Z. V
rt random 360
" _9 ?) A9 L- B% Z: k) N1 Z9 ?, n7 _0 y4 E
fd 1
; \5 O: Z( U, {( ~& k2 G0 P3 L; j2 z! F5 G
]
9 s9 M, ]) \. P
. a, g) J& f7 e6 Fend
3 ~# B9 W% q4 ^) _: d
4 j$ j; O; o' Y7 A, O5 T: l- Qto do-trust 7 E+ O" w: Y7 t& @+ P7 a" w
set trust-ok False
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0 V6 t/ `- V: s- w, R
" |$ \" H1 ]# n- P1 e# O& ]& Ylet max-trade-times 0
$ i) I) s+ _2 ^! mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]6 g! S0 m2 a2 o6 Y. H; o" e5 W
let max-trade-money 0
7 l! N. [0 K) U* ?: ~2 J4 vforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
+ Z E* S' o- Z) a4 G. F. a0 C hlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
6 `" x% P @( m8 V4 \2 q- ?* G ~# X, i+ q4 c+ L0 h" F! @
- r1 u6 v! A( s+ f; ]4 V
get-global-proportion
6 Y% m* J' E/ Y0 D1 `* O) plet trust-value
7 @" \* B5 v+ o; Xlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
/ q5 Y; }8 @& K7 B5 `, Zif(trust-value > trade-trust-value)
" E7 A* G5 p3 S0 x" ~3 b[set trust-ok true]
$ l) I; R$ [" h- }% Z5 Vend8 U* r8 \4 a. c( c3 n k; ?
' M/ E3 [1 M+ K* K1 w* Q* \2 q$ Q
to get-global-proportion
3 O- k6 Z5 `3 {! V/ }# pifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 i, r) V& f9 l9 F+ o3 q[set global-proportion 0]7 ~( U9 q+ u. y; B+ C
[let i 0
& F6 g1 D! A. dlet sum-money 0
" L3 z k' D) J; a9 Fwhile[ i < people]
; T$ K. r Q/ ^) l[- H& [6 H* e' U# _) S6 J
if( length (item i
. N3 s$ v5 w8 D[trade-record-all] of customer) > 3 )
: ?6 l9 T8 y& M[
* d% Q: T1 B# j, U9 a! F" d, R7 Oset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
5 X7 v4 s5 |' R" p+ g* \]
. F. C; S, m+ k]
4 x* M" a. Q! E4 w" K u8 r( qlet j 0& F) f! ^7 F$ W9 O! A
let note 0
. P& i3 i% D6 O$ awhile[ j < people]
5 p8 J% G- p" } _' {4 O' h0 ?[
- B. w \1 g% H5 dif( length (item i
% `% j! L4 F4 d& l% _, n! r[trade-record-all] of customer) > 3 )6 F2 B8 L5 x3 N& z# @/ ]
[
4 j! U/ t4 v% g7 W( X& n/ sifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)5 b/ K8 n- {% T( ?7 E
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]/ L) m4 Q) i$ A( U' n; V L
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' W( R9 c! ~. R% Q# X! Z9 K" t+ n3 A]
4 ~$ V/ M+ C2 R]
: i0 r% U2 U$ s: Z/ g+ z/ vset global-proportion note
* ^; A' q1 S; Y! I]3 H! D9 c+ C9 V/ ]# r3 `
end
+ `* ~. B5 A& h+ T+ W* I$ I) [& Y. A
to do-trade
% d6 s. m2 c7 R- G;;这个过程实际上是给双方作出评价的过程5 k; j1 L7 X" J. g) Z
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
7 o! A2 l9 ]+ ?2 Kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价. u8 h. r! I; m9 u- T9 n
set trade-record-current lput(timer) trade-record-current
0 B$ c3 o* R/ H# F/ k% m0 O;;评价时间
) q; E: l0 }: m; B( Aask myself [
0 i& E+ k6 w d0 A4 b' Iupdate-local-reputation% x6 c( Y# k+ `1 b
set trade-record-current lput([local-reputation] of myself) trade-record-current
- W3 _& a% J- U]; A7 r( B: d1 T5 r" Y* h
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
- z! l7 l) v5 |' i9 W, w0 z# f0 n;;将此次交易的记录加入到trade-record-one中% k& i, O2 x/ U' F0 l
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)& O, E: ?5 Q+ j
let note (item 2 trade-record-current )+ w/ |& q' r: e5 q5 S' g7 o* E
set trade-record-current) x; F- p' G% b
(replace-item 2 trade-record-current (item 3 trade-record-current))* B, o, S8 q8 a. U' ~( ^2 K2 x
set trade-record-current6 f2 |! C' d. c
(replace-item 3 trade-record-current note); Q& y0 A$ X. r; ]7 y" X* _" }
% J G M b& x7 d
, q* r* F& O. E0 J1 Q2 Yask customer [
}7 B6 A3 {- W' K6 a: F* M- g$ q/ ?5 Gupdate-local-reputation) x$ J! \0 W* p/ ?" {6 t. }
set trade-record-current
8 R" @9 B% u+ l, k' Y2 d(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) # \2 d6 g2 T- K0 v3 u
]: j9 x K* H: g m
4 Y( M: `+ g* B/ r, o/ V1 S
# u }) Q( p. Q! a& M( i k/ qset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; l$ k2 Z* J- h" R- ^* w- B
7 s5 O: A4 T" v, D5 p: `9 S
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))/ ^# m u( B6 D( T1 W Z/ B& k
;;将此次交易的记录加入到customer的trade-record-all中$ y( ?" n3 ]7 Y8 W6 ]
end- o9 n- \! @- d# y
. e6 ?1 L9 o" \" W
to update-local-reputation
8 a* r4 C; l3 q1 b, t3 S4 z5 _set [trade-record-one-len] of myself length [trade-record-one] of myself
9 W; v" q5 k4 I5 Z# O$ t
; b! u. `: Y; I1 N( {, q6 m" P% d: a" V$ T* b0 h" Q
;;if [trade-record-one-len] of myself > 3 8 u& \: b; h) S! V4 F$ }
update-neighbor-total" B, _+ @+ i/ J! L' f1 |
;;更新邻居节点的数目,在此进行
4 e5 n6 `1 g$ [' l7 alet i 3
# @4 n# v* j d. Nlet sum-time 0) F& [6 w% i9 W6 F
while[i < [trade-record-one-len] of myself]
0 x( {' K7 x* ]# u; ^[3 ]0 n! [- m4 f+ [0 n
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
# |( S' a4 h' [/ ^* a/ Mset i7 | L) U" `6 ^+ S- V
( i + 1)
/ x. W: F$ X9 y6 z- u]
* q; I9 L8 ]. r# C, ]) N8 m& {: Elet j 34 k; s; u$ d# _6 E8 y o% j
let sum-money 0
4 p8 K& P* a ~9 b& j$ u% Vwhile[j < [trade-record-one-len] of myself]' g+ B0 [' [" M: s8 }0 b! H
[
' [& Q1 Y) a5 \: jset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
6 S) Y7 v; t, y/ {2 x* z |2 zset j, Y( `/ g+ @# X/ `" |
( j + 1), P% S* p4 Q, F) ^- W+ f( I
], K& B( t# n0 z
let k 39 Y3 C0 Z% N" M; O. j$ X9 v9 l
let power 0
( x; }% u7 g1 f+ W% o0 H0 d% T4 nlet local 0
0 x8 c" k5 T6 @; V. Dwhile [k <[trade-record-one-len] of myself], d, c3 T- t9 g8 [
[2 U) B& G3 g( q& z" h- k
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)
7 I) T( b! Y! X/ g# f$ A# e$ Nset k (k + 1)( [1 v. A: n- Q ?
]% u1 W. V: F9 H3 s5 F: d$ w- ^
set [local-reputation] of myself (local)5 t4 p! W2 Y$ L4 o ~( V
end9 X6 T& c$ a# N9 U$ }4 G8 N' q; t
: f( a3 u0 E5 T7 z( ]+ c% \to update-neighbor-total
8 f3 _" h! c% d: ?! k2 r2 h) l* Y5 L3 e" K! M
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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" F' e4 \5 A) c
end+ Y1 ]; r. f# h: F( T5 R$ D
2 i5 I! a5 G0 Q& s; y
to update-credibility-ijl 2 t# h* h- @ P- O: X" G, ]
! ]% \% k7 K5 }* N. 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。
2 U$ H! t. e/ k( c5 ~let l 0. i x2 t/ D4 j# I! X4 ^
while[ l < people ]" n8 d- {. h8 z/ c. ]+ l( D
;;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8 [" H0 B; \8 n- r* w0 d9 x+ v
[
5 U8 Y' L: X) a- Wlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
& I" e% X) y+ X* q5 Lif (trade-record-one-j-l-len > 3)
, k Y( U" U0 x" a1 L7 V: 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-one: L+ ^- N+ N- [
let i 36 t5 `+ v; t# U( ~
let sum-time 02 P; b! d: J; _ i3 h
while[i < trade-record-one-len]! P: K+ p9 T6 ?7 X, k: \1 e
[; @/ w& O0 P8 u( ?6 x/ b
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): w# F) d" s. J" b8 q3 ^
set i6 p3 h8 U3 e" V- E9 l; ~
( i + 1)2 Q4 R# y- _0 k7 q$ I
]
" _7 N8 Q2 J! C: E" Jlet credibility-i-j-l 0
' g8 W! [' H: Q6 ~6 u;;i评价(j对jl的评价)
: M) e8 v! j1 W Slet j 33 c6 h1 b6 |% J! i# W/ E
let k 4
$ P% a+ ^0 p4 C5 w3 y, Y8 p3 ]while[j < trade-record-one-len]* z' F7 u: Z$ ^
[
+ I, s9 s0 u% j9 u: x1 o, Jwhile [((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
' X! J8 |' x h7 m% d( uset 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)0 g' W c3 R6 N
set j& ~' \. k5 E3 J3 @" D
( j + 1)! {8 [5 H7 _3 `) r) Z. B: O
]
" g- ?6 ^5 ?3 F8 m' f) L. Lset [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 ))3 {7 D! f/ c: A7 H/ V" F
8 Y. p' G* `. M- V& C1 w
4 h& ? U* Y8 E( t5 _" V j5 _. Hlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))/ E5 N, E) ^# i& w
;;及时更新i对l的评价质量的评价) b' T2 F/ Z' R+ R& \! g0 p8 S, E
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]+ q; j# y5 z( s& k
set l (l + 1)
9 L. m4 |4 O4 ]) e5 Q/ n$ @% {. O]: l) y+ m! g: R* T
end8 p2 ^* [; Z0 R0 v8 Q
5 r4 s% {4 W8 |5 j- v
to update-credibility-list, Z% [8 Y+ m# d( P. w1 K3 z
let i 0: S( q, R+ k4 O/ ]* j1 K
while[i < people]
* x9 A$ y& r+ L# ~5 Y[! h& C2 X# y, s( s4 ?
let j 0
, H6 u% H8 k* l" q' Flet note 0' m& G8 t8 G D# p. [* V
let k 0
7 d3 n: ?8 ]/ r) V% I2 V;;计作出过评价的邻居节点的数目
) d& c0 Z$ y" a6 j! Owhile[j < people]% ^/ T* F0 e i. V o; h
[
* D0 [2 j6 X) o4 Q5 eif (item j( [credibility] of turtle (i + 1)) != -1)0 {: h8 \# D: f& `+ j0 n4 V0 g9 N
;;判断是否给本turtle的评价质量做出过评价的节点' ]# H3 w4 V' D" w& d; ~2 c/ N
[set note (note + item j ([credibility]of turtle (i + 1)))
7 P' U/ h/ k# d/ d9 z4 Q- h;;*(exp (-(people - 2)))/(people - 2))]( L* O4 p: h2 |
set k (k + 1)4 u. C7 L& N' `, O
]5 _+ L' ?! X$ u4 u7 V @
set j (j + 1)
* r$ v" _8 a' O$ f# z8 M]
7 ]2 a) Z9 ^& D j0 T6 D8 C0 mset note (note *(exp (- (1 / k)))/ k)% }. \! }) H2 G2 D$ V
set credibility-list (replace-item i credibility-list note)
+ F6 |( S. P, @2 T1 d+ {set i (i + 1)
, m2 G% H5 J: f9 D- k: M]7 j6 b$ r. |$ d; }. ~) Z
end% S/ a! N. f( n( N% g
- p+ Q1 v5 ?; q4 u$ h' O: u
to update-global-reputation-list
4 P9 W! ?. ~+ ~- X5 l1 [let j 0! ]3 O9 F0 j- i: q
while[j < people]
; Y6 b# l3 k9 N( z[
F8 O7 T7 m) K5 Xlet new 0' y% w. j) s+ |( l) H1 S& }+ g8 L2 n
;;暂存新的一个全局声誉
- E K" `1 f2 m/ O* F) u: mlet i 0
- ~" J, y V3 D- Qlet sum-money 08 X. Y4 M, E2 A* l- {$ p6 K/ l7 f
let credibility-money 0
( U4 V. V: H: \5 ?5 Pwhile [i < people]
* r% M" R/ c2 g; o% Z/ C9 P[
( q! v& i* R, kset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))2 U$ u/ T% o% ]+ x
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)): M | [ D( z
set i (i + 1)/ D, m# V2 r6 T# K7 ] K
]+ H6 }6 a9 J+ I; i6 `! T6 G
let k 0' A& g5 R" U3 j& P; e/ @/ H. B1 i
let new1 0
9 G; p! B5 q6 n* a) v, iwhile [k < people]
$ q5 T5 O6 Z% v, y& z2 k[$ D+ b( i1 d* E% Q5 \$ I+ L+ H8 P
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)8 F2 F: Y2 K4 M) |% e( I
set k (k + 1)* d; N7 n! o2 b$ i2 W
]6 y2 C/ D& K+ @- M8 n! R x
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) $ K, k! r+ y4 A& c- l2 Z, r7 c
set global-reputation-list (replace-item j global-reputation-list new)
: q4 t9 l% K1 E( Jset j (j + 1); `; v: d2 B/ J
]
! }: ~* E* N" f6 O" a: R& d8 Xend, D" H1 U6 Z, ^) b) a, _- m! i
* S0 R+ w: J- Y$ B+ i7 R: i
" S+ Q- v( @" _% H, ]
6 d2 F/ O: p" A sto get-color: e. r% I4 T$ q% m; o G* {
# l2 ?9 S9 [% n9 m5 ]
set color blue
2 z* f" `. j7 Q6 ]+ ~; |end: o) e4 G' s' P6 Q- D
2 d+ V$ e1 C: r* Y
to poll-class6 B0 z7 Q; _4 v
end
, ~- E5 `# U; j( k$ ?% n
0 r( X; D! ]$ |7 sto setup-plot1
# {/ u0 d- v! C+ ]! I7 V4 [: Z5 i. p2 t0 _9 ]1 H/ G$ U ]4 ~
set-current-plot "Trends-of-Local-reputation"
' a5 `1 n/ `! Z$ v) C
% U. J& p" b4 u- _3 Z+ z+ ~; Gset-plot-x-range 0 xmax
8 @! V+ ^' {* @: W% F! y5 s7 q0 i( z8 G1 k
set-plot-y-range 0.0 ymax8 r$ z R+ S! q1 f$ c) l- h7 U
end# \" ?9 O4 E7 N% q5 i- ?
1 X% j3 D/ {( [) M& |- tto setup-plot2" _7 |# k4 w5 ?. x
9 Y. `6 e' d1 Y& v
set-current-plot "Trends-of-global-reputation"( G S8 Y4 g! `# I% t
' l9 y2 o. h% _( K% a4 S fset-plot-x-range 0 xmax) {9 n+ N5 J( u* f# o
$ \' W* i" q' M% `0 h7 Q6 T6 \4 y1 x4 [7 a
set-plot-y-range 0.0 ymax
' _" O( B+ I6 |* d! T+ g$ send6 B" g3 A( {! B
7 Q: ?) B& u2 h s
to setup-plot3
9 R% e; c* L1 o5 `4 u6 s- ?( s% k8 z* p: n# \+ d0 R7 Z
set-current-plot "Trends-of-credibility"
) d0 ^% I, m) i* D" h8 C
3 Y, ^& b. M- e# m2 x) N9 l7 D/ o$ o; Yset-plot-x-range 0 xmax6 b4 X4 s0 U7 y+ y' [0 L
2 J- E$ E) ~7 Yset-plot-y-range 0.0 ymax x' z3 R, y- ~/ z4 u$ i' V
end
8 ]6 [9 B* P* c; z" Y: [% X; x
( S( n: h" ~# r+ Q) Qto do-plots0 Y5 J$ h) r2 v$ x4 W8 ^' B9 E
set-current-plot "Trends-of-Local-reputation"
2 n; Q/ [, B0 n6 f/ v. `( Q/ Dset-current-plot-pen "Honest service"+ @1 ]5 a9 E, n
end
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* w5 H* Y8 q3 j7 A+ t[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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