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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
6 }& D! N+ O% ]$ B6 D1 i0 gglobals[
1 T( u; t8 T$ w9 s; D1 C9 Jxmax) _8 A; z6 m) a, ~! h4 J
ymax
% g* U( U" }0 }1 A8 Lglobal-reputation-list
2 M8 W; M: v4 k* X, `4 ~# b- x% d% t, }' U. Q6 ?8 v% d- U- Z2 H
;;每一个turtle的全局声誉都存在此LIST中8 ^0 w. j6 T3 A0 h- G% d) G% [
credibility-list
2 |+ x, |& w+ b3 T3 B. I;;每一个turtle的评价可信度" c3 @5 O& U+ |$ [+ U
honest-service1 g$ K% L, [: r2 R; @: X; C0 ~* o
unhonest-service0 k$ ], f0 s0 i/ G$ O \
oscillation6 E5 k3 S0 v- M% h6 e2 f% ~; n& c
rand-dynamic* m4 i. E% n; o2 {6 J6 w
]
4 y1 R3 R! W6 Y5 R2 Y$ `; M1 Y- s) S: y R* B" i" v# d' z
turtles-own[
; d) y# ]9 z* N7 A" T. E" a9 Dtrade-record-all& Y# @' Z! `6 k# _' B" K
;;a list of lists,由trade-record-one组成
+ o7 O. F- O/ o$ h# Itrade-record-one' ?4 b" w3 J& y! H. g
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
0 X4 G1 O; c1 K6 }
4 l4 |3 j. w* D% 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]]
: |" T0 h5 F6 e0 ctrade-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]
& B- ]) m4 G$ r& A* icredibility-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
9 G7 H% p7 `& Y) Q Zneighbor-total
' f6 X' v9 d. C1 G;;记录该turtle的邻居节点的数目
5 w y; ?6 r6 Q t. A# S' i4 Dtrade-time% x/ P+ J& n1 U. ?3 S
;;当前发生交易的turtle的交易时间
! @9 T8 d2 i5 h9 ] ~% ?appraise-give+ T; ~* K5 O# U
;;当前发生交易时给出的评价4 L# {, _% b1 Y6 y. D9 ?$ m; R0 _8 \
appraise-receive
$ X2 l' u9 i. x5 R& l;;当前发生交易时收到的评价
( `* {. ?" H6 `3 \6 {/ X! sappraise-time
1 g" e5 W: j# z W;;当前发生交易时的评价时间: ?$ g) {0 Y: X
local-reputation-now;;此次交易后相对于对方turtle的局部声誉8 q' q; O- S$ W! \4 w
trade-times-total
1 [% G% R6 ^. ~" P9 O; S;;与当前turtle的交易总次数7 S/ w0 ?, R2 B+ ]$ E
trade-money-total, \4 O* F! o7 |! {, c( R5 K# B
;;与当前turtle的交易总金额
* E9 w n+ |0 z2 J* j0 M4 Tlocal-reputation
' Q! R7 G" q( O. B- k, Mglobal-reputation" ^% |$ j% ]5 C7 s P9 A
credibility% a/ T6 Y6 F8 }; o `" l9 j7 Y
;;评价可信度,每次交易后都需要更新6 R( h/ @: G4 Q
credibility-all
0 z/ N* {$ ?6 X" R;;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4 ~: d/ L: K- k/ d) q6 S
1 ]* V+ B$ I$ L' |: b4 U8 j8 N. T
;;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) X7 G, b7 d1 R; n7 Y
credibility-one3 q7 ?$ k0 o+ T7 ^+ ]1 {! }
;;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) f! v C4 |% N+ U+ s6 U" u4 `
global-proportion
6 A$ b: o/ x/ Q. t1 ocustomer( J' ~$ w7 ]" v* V/ ~ p+ l
customer-no
9 v7 q! G! q# Qtrust-ok
, {# n. L" q/ \trade-record-one-len;;trade-record-one的长度
1 D" u. j) S: _$ P/ J, E]7 L7 N7 C+ X1 t) r; v/ D9 _/ D" M* F" j
8 Q+ E; P7 C" q
;;setup procedure
8 Q: J) `, {; K5 \* r% g8 ~+ A! e8 M+ W; v6 z
to setup
- K$ u0 s5 ]# S. \) b" N, f' p# ~: d3 l- v+ u5 Y$ Y0 s. c; O
ca; u! M0 G- R1 l( D) z
8 u: x$ [. C4 L5 Y
initialize-settings1 I' {: _! I2 b2 E! n
- v `6 u7 q* \: ^/ R
crt people [setup-turtles]1 X/ O' y1 N' T' U& V
- e7 p3 h% b* c
reset-timer% M1 Y1 `6 g. I
- M- O" G6 j; H# [, G/ ^
poll-class- [' G }1 `" q5 g
: i9 S! _4 W& v+ F2 ~7 Isetup-plots
- I L- l( n* v w0 Y) U' V5 z2 l* v& ?
do-plots
) e# M1 \' ]4 Q% N& n- Wend
0 G$ S- R0 k8 Y; g! x; Q$ c! o; @0 l5 i" a9 D. F4 K1 _" D6 _+ v
to initialize-settings" D* \) w( D5 A" U
1 _5 S+ z' I! t/ _1 d
set global-reputation-list []
1 A0 {9 U, l6 d0 |: _' m H [# [2 E- r* e- ?7 n6 a: x
set credibility-list n-values people [0.5]
0 o8 l( ], I7 U k4 n/ C/ Y8 e' Y0 y
set honest-service 0! ?4 X: q+ \- H/ w
. ?. |1 \$ p7 d/ G0 h" V7 N/ @
set unhonest-service 0) [6 X* \0 i3 |' E5 v( y
" E& u$ U7 z& I+ q. E
set oscillation 0
$ S1 k: G8 v' y9 k' {3 C% h4 l0 y! G' H$ _% \( q" f
set rand-dynamic 0
2 I4 Y9 E) s# C6 ]: Vend
3 l; m" _( G6 _) P) Q9 q c0 x2 w W9 o G- Z" ]# d7 [- j9 m# ?+ l# z
to setup-turtles / Z) P. C1 ?+ m) R- `+ f
set shape "person"
. r7 g6 f7 h! s, Xsetxy random-xcor random-ycor
, S5 y) L; R: o4 ~3 Kset trade-record-one []$ D8 \( ~% d! K: W& F6 ~ _
" w- Y+ l/ `% N6 A) ^/ \9 y) h" ?
set trade-record-all n-values people [(list (? + 1) 0 0)] $ N+ q$ j9 L' d& W6 Z& W& J4 C, y1 P
5 i+ Q6 F: R0 P! W( \- o
set trade-record-current []
) Q ], ^- E0 _; A6 Jset credibility-receive []
# l; K& T4 B) b9 l4 Z; |6 bset local-reputation 0.5
$ K% F" I& u& t- J/ t* S% M# Xset neighbor-total 0% e6 v! k% I5 K+ [4 h
set trade-times-total 0" d$ E* b. I" D6 E) r
set trade-money-total 07 { e" o( h! O% Y9 M" z
set customer nobody1 F. z7 d; D5 R/ f6 H
set credibility-all n-values people [creat-credibility]
@% F" g# ~. K- L9 L5 U0 z7 cset credibility n-values people [-1]# M" S+ d0 D' Y1 ]5 A
get-color4 W4 r/ b" e3 Z. O& T* e
0 d! i! z( p5 N! |) g$ v, Y
end( a Y. y$ ]1 H) K
+ N/ i3 k9 @7 _( _) ~& H7 w. Uto-report creat-credibility" m% w6 r4 h& q- S" E% x4 d
report n-values people [0.5]
) t7 Z9 s/ [, m9 Eend1 Y; i: t$ J* p9 E, a# q
' E" ^$ D6 ~: w. {' l( M" Zto setup-plots2 ?8 E8 P) w( o
: U% f6 D* X- I: n. d9 Z) gset xmax 30 u2 O- J& \6 T; }, U$ T7 q
5 ?6 q* C5 M) W, I8 Q: G
set ymax 1.0
: E' M& `. p; k' x6 ^2 o1 f' P, y4 T6 A
clear-all-plots
- w- M$ z% W- E* b. w
/ Y, u9 h. i3 K$ [1 Psetup-plot1
( O6 Z% S5 a9 u; z( V- m
- |! g; [9 l5 E! o7 Z' m. wsetup-plot2
8 i2 F5 r Y6 K, J0 F7 k4 B3 U { P6 v# w# R( p @
setup-plot3' g. m2 h/ v/ x% {( k4 U2 C) x7 J
end5 [4 D/ Q. H o& {
% T o4 _9 y8 p& d;;run time procedures$ @7 G$ }6 S4 t8 _( m8 T
, d4 i4 q! Z: d- Q3 R# @/ ato go
4 \& l7 b- T% G6 _- `8 o' Y4 C! ?/ Y1 n! T# \1 h2 h
ask turtles [do-business]
, G4 V4 u$ g! N# Xend3 I3 J; F& o# L) T; x( I
3 I) q. y; X0 h' e8 o
to do-business 4 c( T |* e+ f) e( i( {" S! h# r1 `
, T+ O2 e8 ^4 C i; r5 }" W1 u
) s3 U1 I* B7 @rt random 360
- {( X' _* P" r3 g
) v( p, _/ e# x& D4 @3 f, S' Q, ]fd 1
% J5 r: h4 R! x8 t3 u
/ B" C' g/ `5 A( O$ aifelse(other turtles-here != nobody)[
% d, Y3 G) g) m% @2 A+ O8 q4 F3 r! {: [
M( w& n; F" _/ x( V! g( f! iset customer one-of other turtles-here
8 m% y [! q% e$ g$ `/ p6 F! b6 C1 Y3 H' U3 g/ ]% Q, }
;; set [customer] of customer myself
7 G( `1 K2 f2 ~7 Q1 F
6 f6 n. j/ _$ d$ n% [2 W4 f- Yset [trade-record-one] of self item (([who] of customer) - 1)! Z5 v# ^ s( i# f% V, y
[trade-record-all]of self
# `& _/ @& F" ^;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
9 M1 I# p3 `% ]/ c
/ ~. w4 @* a9 N4 Y% Uset [trade-record-one] of customer item (([who] of self) - 1)
; d2 r- M% z, w8 A( _[trade-record-all]of customer/ E I) {( ^% t4 Z: c( O
) K0 O2 Z9 Q/ v2 w H3 C
set [trade-record-one-len] of self length [trade-record-one] of self
$ h2 ^2 j* j& h( Y8 X2 d9 \
3 @& W1 R+ a Oset trade-record-current( list (timer) (random money-upper-limit))
1 \1 N6 o9 J2 V6 n
8 i7 }; |0 s+ D5 zask self [do-trust]# S: B! Y9 ^9 a4 K# M+ ^
;;先求i对j的信任度
, ~6 j# O0 g% ~1 f, L' p3 u6 P! F) d7 M1 }5 K
if ([trust-ok] of self)
- S1 V* N' d( t;;根据i对j的信任度来决定是否与j进行交易[
9 m( \2 W0 Z. t+ Q. f* ?# q3 C3 [ xask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself5 T/ m$ r* b) O, B3 M, R: Z
$ |) r9 d ~& O+ I! o; g& y' N$ ], y
[
, S7 F4 S( k, }* ?; e2 j8 I
! X$ m; g# Q* a4 m; Qdo-trade8 |; O, f7 t3 W! b; T) _
, t7 D& I# m6 ^3 Aupdate-credibility-ijl% I* w$ b- v: b1 F0 @0 Q
+ Y" W7 e! d& M" W8 hupdate-credibility-list8 r L! L' k; ?6 w
/ B. a! E. g7 X' Z* l* s/ d* E E
; Y" S& j9 b- Q
update-global-reputation-list
3 R% L9 x8 ^6 O8 _' q
3 |* f% u9 l! z) j( a+ x5 `7 opoll-class% s8 M2 r3 x- W6 c8 O
& j5 j: D4 d( \, b
get-color1 E5 E% u4 o0 y( _
7 a8 c5 L- t0 Q6 j]]
' b" X6 _! j/ O& T, \/ i. G7 f! {7 h, t
;;如果所得的信任度满足条件,则进行交易
2 V' c3 }. U/ m
9 ~! _' k0 Q; P; }0 D- ?[
% r c# x5 L7 z' R) g
! n6 R1 Z+ i" vrt random 360
) I5 M7 {2 |2 H
/ Q! [& `, \6 T3 v* sfd 1
8 n' v1 L6 r( z" J" f# @9 y& C6 V) t( ^: v
]1 E* V, u* M; ]
( a# M: }* s6 b9 {4 n+ Z+ h# eend+ l( U( `, g( Q3 A c
2 y( Z* a, ^5 h# e7 p; g9 ~
to do-trust . n, z) Q; ?, e8 k2 B6 u% C8 N
set trust-ok False
$ N* B9 [ a% ~/ g
( n% Q$ C9 l; T9 _) Q8 d6 z- Y( B8 o; T) g
let max-trade-times 0
5 D1 W7 x/ U+ Q3 Vforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]* H! q8 m' _3 w% S+ T) m
let max-trade-money 0
, z# M. f: {& V3 i" uforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
) k$ `' ~- f6 T ?let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
1 L6 o: u6 x5 v- ?$ p4 V! j+ w
$ S: g- _) M* ]9 \6 O0 M; X3 c7 [0 D8 n
get-global-proportion
. H! o) j& k" I, |: V/ ?let trust-value
, Y, L( {, [3 s0 p4 S& Q; glocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
2 `) V& r- G/ V8 ~4 Dif(trust-value > trade-trust-value)1 H$ W ?" V" i k
[set trust-ok true]% n, u) q2 \4 x+ {0 @' r, s- {
end _% X- O" r2 e* h, J! y
; O Z6 @- `: r( ^4 N( Q. E
to get-global-proportion4 P; ?8 z, w5 g
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 K4 @) F5 W; \( O[set global-proportion 0]& {6 W8 v# ?. V W; ?4 R
[let i 0/ V7 L$ d7 s$ k
let sum-money 0
* Y P- v; E; W$ N8 zwhile[ i < people]% X8 J& J' b4 N& ]' o
[$ L9 `& B4 g$ a+ I9 a% k0 c8 M+ P& ~9 n
if( length (item i
" Q# }* u( }8 S8 \; q[trade-record-all] of customer) > 3 )2 c6 w9 F4 Q' r+ e+ c4 W2 g' o
[
# \; H- l3 S- `6 |set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
/ J0 B s C# P2 o( G9 a, g8 []
- K; `# `6 ^0 B& O1 J]* r* I) I+ j. m3 i& }
let j 0
9 s( F# y. ?: ~8 k. k1 S1 g |let note 0' R8 [: I. R" O* E$ \
while[ j < people]
. A2 R/ M# O6 P: j3 B2 s[
6 f# [; L0 l) y6 s% o8 ^if( length (item i
$ l- W1 t4 d5 s# i0 W& k/ b[trade-record-all] of customer) > 3 )
4 a- h' f& A! G7 k[7 x! _/ y/ z2 b5 V. x, g, G
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 N3 I: O3 x5 f `[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
" u0 D$ k0 F" N# k, j7 D7 v, `[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]* a# R+ I# J4 p1 G/ z2 ~
]
1 h" ?- O5 T1 g( f$ t1 _7 K]3 s! e+ A3 @0 Q1 M5 E/ d9 K4 R
set global-proportion note
. R, u* X8 ?4 b' |]4 T& O1 {) T% E O- G y
end" a* w( ]7 r' H6 U
" D: ^' G6 t* D# K- d3 I) Q: [
to do-trade
2 c; X$ b* l/ Y' S! s, A;;这个过程实际上是给双方作出评价的过程
- N7 h" p- P8 Oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
; i" j" t* t8 z3 uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价3 R' S4 I5 Y; Q& [. N& _
set trade-record-current lput(timer) trade-record-current" w5 Z' K8 i1 U0 }% I
;;评价时间
0 t3 l" k/ J0 e7 n/ Gask myself [
9 N. p8 k6 H) z. L" j0 I3 Pupdate-local-reputation
$ Z. b4 Z/ _, D- P* eset trade-record-current lput([local-reputation] of myself) trade-record-current
/ L- V& B1 m; a& F; M& r' I2 L]
" i% Z2 X9 f) k0 ?- }) Oset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself9 _+ I- X2 v& k
;;将此次交易的记录加入到trade-record-one中
6 m( Q5 @) u! J" wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 v; I# S# v- t Vlet note (item 2 trade-record-current )/ E* W/ v+ k% }3 j' p6 `; X
set trade-record-current
* D5 X0 `( G! B8 h) n$ R(replace-item 2 trade-record-current (item 3 trade-record-current))8 y, P9 n& F% z
set trade-record-current
( B0 e- N# X# _% k(replace-item 3 trade-record-current note)3 j" }8 C. d' Z: d( F; y$ [
/ g& n6 v z& ^8 h( ?
" l& x8 f- W: c1 U
ask customer [9 h/ d. w5 s: e7 r9 J
update-local-reputation; b( Q: ^% K8 a9 U( a9 |$ W9 r
set trade-record-current1 d/ z% g( d5 q- K5 D9 B4 G; C
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
9 q7 @9 F2 }2 [6 N* k3 n* U. e, i]) U `1 y2 T3 L; u' }& `
2 {6 @# `7 ]1 }% v/ B' ?
) z4 D9 V7 n$ z& e! s. F; W1 i1 xset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ q) a J" |1 S; |5 Q' o1 g. C" m1 \# ] l+ H
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" t5 g- R1 D1 A1 r
;;将此次交易的记录加入到customer的trade-record-all中, b& L7 ]/ z8 y( {
end5 i6 g8 ^/ Z8 S! i6 P- s/ t y
) J; c- j- F" L8 vto update-local-reputation2 {; a L- `& g0 k+ u, ~
set [trade-record-one-len] of myself length [trade-record-one] of myself' ^( p% U: b( Y! \6 G
. J+ b5 K/ p# r$ w: z4 o* W. Y
- n# U+ B( @) f H6 C- S;;if [trade-record-one-len] of myself > 3 ; y+ |9 y- v4 v( t# ?8 `
update-neighbor-total4 S( L! S! L `& ?! H& E
;;更新邻居节点的数目,在此进行
2 b6 n2 i1 q; \! m; C6 N8 Clet i 3
5 Z# C/ |! X1 vlet sum-time 0. Y/ D* o& K' x# B( B7 E+ \# N6 f1 N
while[i < [trade-record-one-len] of myself]
& H) Y! O4 T6 b. _, R! x; Y[
7 D4 u, @6 w% tset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )3 ^. B8 v( }* h
set i* e+ h: u- x8 U) y" N
( i + 1)% {4 p% W8 D1 k
] h) _# X( e- S; a1 q1 B
let j 31 `' v+ T+ S% P8 H! }
let sum-money 0
" J0 [, J! @4 N" t! v$ ywhile[j < [trade-record-one-len] of myself]& ?, b8 D9 ^( A3 f5 w; D
[
: y9 V5 ~; P- Qset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
5 T& ]) X# w, c' C4 u, Cset j
9 G, q2 s9 x/ r5 Q# z( j + 1)
+ d: | |/ N3 V8 T" D2 i]) u ~( G0 Y- x) g' V+ ?8 z
let k 3# c# |8 g" \) _, ]
let power 09 o% a0 T! N3 L9 D
let local 0
, o2 Y+ r9 @$ ~/ Y7 U1 J8 lwhile [k <[trade-record-one-len] of myself]
# u& Z8 v: U" X" a6 \: F[" N6 J' E( u* `
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) + F) i- R0 |& l9 C. r
set k (k + 1)
7 J, Z. f" Q. []/ ?+ J) v7 }$ B7 m# X1 ^1 w; N; k, I
set [local-reputation] of myself (local); s* J$ T& Z; t$ _) e0 P
end0 P3 W- _( E) j. {
, d0 @( b4 Q" a. D ^! G
to update-neighbor-total1 d3 Q# h# x+ _7 L- M. m
" w- C1 U I* r
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]7 A S d, b' C6 t) \
/ E' P/ D5 D3 e l1 T- a
3 r+ j- n: T: g: Aend# `, A2 P V* a: K
% O$ \6 w; \8 G# y- G1 o ]/ X. r& Bto update-credibility-ijl
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1 B- h+ X% @/ v5 r9 M" Z1 t;;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。" l& i; s; j5 T$ p7 V% T2 ]7 x! S/ W
let l 0' F0 g; Z9 I2 z* ~( i L( P( D8 g2 I
while[ l < people ]1 P' r7 p' J% \) _
;;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" g C, `+ y4 B& d) x9 d' E" d4 E
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer) l4 r _: ^( A% ^ n
if (trade-record-one-j-l-len > 3)1 E5 B, E6 r/ s$ U7 L8 K
[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. \# }8 p& D" s# Z' f9 D7 A6 l
let i 3
& D2 `: q" ?0 [& U' }) rlet sum-time 0
+ I: P E8 v9 |3 L p' Q: Kwhile[i < trade-record-one-len]: \: K- z, l9 l" X; N' o
[
# t8 X, X' a. _ f/ Xset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ) M- `$ y, _ ]5 M7 P n" ^
set i
1 D- F6 B7 T* n3 G5 S8 d! s i: U/ Q- `( i + 1)5 r7 P7 _+ U0 {3 m: Y* x" V) ?2 Z
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let credibility-i-j-l 00 S0 F) r2 B0 S( b
;;i评价(j对jl的评价)9 f* q7 ^$ z6 _
let j 3
3 a, N) {4 u4 i5 _let k 4
1 I! e- S) F; z; jwhile[j < trade-record-one-len]
+ J. L1 k* \ H6 q L* H[1 G8 ^9 W v7 e/ C b# \ }
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" o0 V( ~* }7 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)
$ W+ x& X6 G1 Uset j
, Y% E4 C8 D% y( n& J) z( ^( j + 1)
/ j5 A |2 L; ^! \/ i0 _]. V! x% r/ U# b1 R h8 M
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 ))- e. ~) X+ D$ b5 f+ @
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
5 A1 y2 o6 T& H n6 m' g;;及时更新i对l的评价质量的评价! ^" ^- C6 P, K5 ]) ?4 t& V4 y s
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' H/ m8 V$ q& o( l$ |. t( Vset l (l + 1)
0 R. _3 a3 y& R) ]$ P) \]( e( F. k! j z0 A Y3 F
end! d y# j) p2 d4 e: N6 G
% m" |' K0 w% c9 m* I0 F& W
to update-credibility-list; m( `6 M t" ]' [. ]. n
let i 0
' C: N1 B$ R! s# `while[i < people]) b5 K8 Q3 W. ~7 ]3 ?
[
$ y' {( Y0 y" m0 l' a7 Mlet j 0! M- O( c- W: D+ M
let note 0
' K' E; b: P, j- k- ?& ~let k 0
y6 P+ d- Q# e;;计作出过评价的邻居节点的数目
5 o8 V9 x6 u& C: ~; K" dwhile[j < people]
& e# N* B9 t! `( r[
3 ~. L6 Z# i a0 dif (item j( [credibility] of turtle (i + 1)) != -1)/ v8 ]. b9 w/ u% R/ @
;;判断是否给本turtle的评价质量做出过评价的节点
& t+ |$ p/ x1 H/ v: p4 z[set note (note + item j ([credibility]of turtle (i + 1)))2 `$ Z* J+ R5 p9 A9 q
;;*(exp (-(people - 2)))/(people - 2))]6 d- P0 O' O( q( K# Y
set k (k + 1)
0 n; o" z$ [/ {]
+ n6 s7 `7 {9 ^, q8 Z! ]set j (j + 1)
# [* U$ X& A' @2 R+ |2 d]" t7 C9 [3 }! r! N7 {6 e% c
set note (note *(exp (- (1 / k)))/ k)
4 W# p: T* e, ^8 R$ \9 i5 rset credibility-list (replace-item i credibility-list note)
9 _* b x) m P) |( D* |8 q ?- n" pset i (i + 1)" W" T, L7 `1 G' j. u+ E* j6 l/ p
]
3 c; J. J) f! D7 f7 e/ D; Kend. p- O- F/ \4 P; Y
+ V. o2 _( ]9 Z& H
to update-global-reputation-list1 b9 c0 t' ?/ [" p" w
let j 0+ g' C! I* H/ e% U# K+ i7 ]
while[j < people]
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& X' Z {$ A d% I) D) E$ v; Nlet new 0
) o3 a$ D+ m8 p1 r% B _: H$ I;;暂存新的一个全局声誉
5 K7 S+ ^1 s) Y6 qlet i 0
- [# t( {% E$ K+ O8 g3 l3 ^' {; Blet sum-money 0
$ A0 O! C. S* V4 v# Vlet credibility-money 0
% K# I7 \6 I5 d: |- U- h3 _while [i < people]
7 g0 T3 `# ~* H# K[9 Q7 k5 I" m/ u! I+ ?
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
7 m+ ?* Z) `: B* m5 p8 T/ M1 aset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)), H u% E( J. f. b
set i (i + 1)
1 @* V$ |& W) A]
5 R/ B! R) W1 \* P7 b+ ~let k 08 M2 ]; J! N6 U7 B5 y! k! H8 G$ X4 ?
let new1 0
9 k% H/ f- M# Jwhile [k < people]- `+ \. [; _3 o- e9 i
[# k/ ?+ q! h- Q
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)
/ z+ e, n) g1 pset k (k + 1)
* J- ^- |& n% }]
5 I( U, A% p; A1 gset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % m- X2 l# M2 v1 F* U
set global-reputation-list (replace-item j global-reputation-list new) _7 `- T' h) I4 j2 L' h/ _" u9 x. T
set j (j + 1)0 @1 O& |# L* A. f
]
' h6 t' A, Z+ R0 oend
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u# A' B; q+ s) t) v# a: X9 B# W
' N! Q( g2 Q& L6 l0 hto get-color2 u0 f. `2 p3 [+ j; t* Z
e" y f0 D3 ?* g0 Z2 Q, @" a4 e
set color blue
+ E% }, J- E! n( u |end: H# p9 a) }) o7 n
# d: c% V# {& u. Q
to poll-class
% b. \% D5 h( mend
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) F% ~2 j9 m$ C* ~- @; lto setup-plot1) k. e; T0 m. k7 B
% y* c2 C! B1 C, r9 {; \( V4 B. Jset-current-plot "Trends-of-Local-reputation"7 F1 k$ I% l- k$ G/ W, W( a% b
8 ?& T4 d: R2 ]2 B, i0 N
set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax
* A8 `9 X+ \$ \& E# wend0 J5 E5 L) ~$ Y! g* D
3 i8 I. Z: O1 Q: Uto setup-plot2
% F. _4 n* e9 ?$ F) `9 [
2 }6 J2 M3 D5 t$ E! a4 g! Hset-current-plot "Trends-of-global-reputation"
2 a3 ^) ^4 |% e/ L0 |) Z4 M& P3 w* T7 C- R- W+ E; k o% g1 r
set-plot-x-range 0 xmax" h( x4 f- }( c, u& u$ v" c: f8 M' M' r
6 g4 }2 n4 [( ]# D
set-plot-y-range 0.0 ymax. k$ `( t7 o: t; H' M3 O: U
end
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, I5 q3 d* o6 u6 o- O$ k" nto setup-plot3
( v6 C, y5 N* o3 J6 F4 V$ {% w! D( W; J& x6 X+ r& D/ @/ P' Z* q2 D- _
set-current-plot "Trends-of-credibility"
" o$ e$ p: W, G7 l
5 j! \ Y5 |, a/ nset-plot-x-range 0 xmax
; g! j( Q3 S% _5 f! c& s4 k! ], N$ W3 j+ ]# L2 ~8 G: v7 M
set-plot-y-range 0.0 ymax9 G) X3 o. y7 R0 `2 {
end
7 A0 g& V2 a$ o! Z% n( c E2 ~/ }
; |, v9 D; w! k( g, f' [+ nto do-plots4 p( M1 o9 U3 ]) ?+ P8 J" |8 {
set-current-plot "Trends-of-Local-reputation"
4 x5 u; m3 |1 X. n& T8 Kset-current-plot-pen "Honest service"! z0 f& O5 }+ g
end* m) T8 ~$ n/ T, P/ d" D
4 s6 u# S9 w' A. f' H7 o[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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