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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
. s/ s+ q( E! G! T$ bglobals[% t" ?9 z& p: V& l: o* @
xmax& z) Q. g$ ?5 W$ w% V$ U/ \8 J- b
ymax
" H# }. b; S eglobal-reputation-list
+ q5 y F* ^( c) T6 W, U) R, k( B7 i1 G# K: s* j1 R' r* p2 Z: E
;;每一个turtle的全局声誉都存在此LIST中
! G( z5 P- C' ]! a, [credibility-list
7 y; u# S7 O+ Y& l; S. X( V;;每一个turtle的评价可信度
4 I+ P$ O6 S% R, S! Lhonest-service2 M5 D; C) ^( O; l" }) R
unhonest-service* t6 ?5 l+ ^$ J; Z& N0 ]; ^/ O7 y
oscillation/ K, d1 U# s) h5 h) ?6 A' |8 \+ X
rand-dynamic r( k4 V# W% [! b0 n) w+ j6 r# B
]8 @. F3 n$ F8 R3 E, o8 D, ]
8 p6 I: b2 C6 D* E# Z3 Nturtles-own[
, i8 ~5 r6 }6 A3 J' V" ~ p. i! P( ]trade-record-all( x" V( A$ F4 H( R% ^( b! q0 n
;;a list of lists,由trade-record-one组成
6 }5 R4 g( h& n& K) _3 Xtrade-record-one
! T- d& d! U |1 n;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
1 Y& f5 d. L- V$ ^/ s
5 a0 {; y( D. |6 X+ ~* M; x;;[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]]
& ^# ?& R; V- s4 S$ ?* i6 ytrade-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]9 g5 M. }0 d6 ]& I' l Z- S
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
- U) V2 q# G1 F F( _neighbor-total
6 l0 l- a3 z7 ?6 G+ ]3 M;;记录该turtle的邻居节点的数目
; q; o; G' t6 Q# D6 S m: {) Y- btrade-time
) p! K/ {7 _& ~" g* i1 f;;当前发生交易的turtle的交易时间
# ]1 [' c) E$ G% Q& _- L- aappraise-give
G3 G& w/ }* S% C" s;;当前发生交易时给出的评价; D9 l* y5 w/ I. V+ H9 F' H
appraise-receive, f* h) \4 h x' P
;;当前发生交易时收到的评价; d/ x) n( C5 J5 V& t+ \
appraise-time/ p2 ?% _2 M( L) }
;;当前发生交易时的评价时间) z7 X% |- e6 k/ M3 L
local-reputation-now;;此次交易后相对于对方turtle的局部声誉. e" X; d* n8 \' ~( ]4 P
trade-times-total
- d& d1 K( }$ d% K/ w/ }& s0 x;;与当前turtle的交易总次数
( V$ L- c6 n& T6 mtrade-money-total
' A# L8 J; C) P3 R. l# t) X+ }5 T;;与当前turtle的交易总金额: ~ r9 b' b% z+ z1 p6 y; G
local-reputation
* _9 \5 f6 n0 Sglobal-reputation
# ~7 e4 A( x% ^) G! s, K+ _credibility2 R# p- B& {" w6 M. [
;;评价可信度,每次交易后都需要更新
3 @5 S% _+ F- k" P ncredibility-all
1 `4 k' K: S9 g# a 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# r* Z9 `& Q! ?. i N8 B7 q
0 U0 W8 b& n% P# F) l/ 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" D, f# j& Z( Z/ J
credibility-one* H4 _1 y$ J! P. C' s
;;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6 G6 L& J/ r0 p& A; ~0 p
global-proportion
. C2 K8 e, w, p4 G7 @" x' l# Wcustomer
( |2 V) a/ ~! s( rcustomer-no
- u& f, b" g5 l' X2 ~7 ]2 P! s* @trust-ok
5 [9 c4 o% C( f/ U7 _* Htrade-record-one-len;;trade-record-one的长度: [' `' H. L3 L" ]+ Q( q; e/ J
]
" ~, z: J7 [ y7 g) N' b* D) ?5 T' D3 F* l" ~3 X9 D% Y
;;setup procedure
' Y2 H9 f9 H6 w& H) G) g: O
' }' I. V" ?; H! B# Wto setup
) v$ U) E7 y4 H W: o8 F- G/ U2 w. S( ]
ca3 a% ~( q" f9 X" O, t0 H" J
2 x W: i4 y- p( V5 u& finitialize-settings
) g2 ^! ]1 Z$ W7 F, t
' [9 h" ~. [6 t: r# l& {crt people [setup-turtles]- p, B) X5 `; L
7 b+ t2 t4 ~& \& Qreset-timer" m5 T o, a* g. Q1 w/ `
9 j2 `! d7 M- ^* U7 u0 n6 w- Tpoll-class
& u! `* V. a( {8 R$ Q
) ^0 a; q& X# j2 i, ^- } m/ Nsetup-plots
# H& v6 [4 q1 h2 S! @& w" X( K/ }2 D I
do-plots. L) |( d6 M8 i- l @* T
end: K* L. M7 u3 u$ J M0 m6 n
( n0 m" H) ^1 }" u; P+ g# c( s% Jto initialize-settings. j0 F+ m& \+ q+ e( }0 H
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set global-reputation-list []
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set credibility-list n-values people [0.5]
6 t3 ?. p5 s6 R
2 a( g, _7 h8 ~9 L; {" ?set honest-service 0
& X# L- {' i9 V! D0 l) O9 Y8 [/ T; J; T, @. |% p* r
set unhonest-service 0* W' Z0 l9 w" q" ?) i9 `# R
7 z- Q" L- O3 V" A
set oscillation 0& `1 i8 Q" Y7 f" i- Y
! W9 {8 M. F, I. d* @; a! nset rand-dynamic 0) v' M, ~' I& t/ I/ R
end" ~) x9 {$ x5 {* j) M2 N
) D. t& d9 ]$ l4 Tto setup-turtles 5 D0 g' C7 e2 Y, |; T2 l0 q# i ~
set shape "person"1 Y3 l% G- C* N& `, h* D1 Z: ^
setxy random-xcor random-ycor; i' V3 j$ `/ _0 ]' P1 n. C! V
set trade-record-one []
4 o/ E6 E5 `3 v) k2 _4 b8 H" g3 ]
. @" q( @, u# _2 A) C. Lset trade-record-all n-values people [(list (? + 1) 0 0)] : C B+ G" ]. n( F
) k# r" S! i. s7 mset trade-record-current []6 s3 ^, }' _, ~4 H. X
set credibility-receive []* p: ]4 U. q2 N4 I
set local-reputation 0.57 X0 O2 Y- R% J$ @. F
set neighbor-total 0
, [1 {" W% F* @+ y2 L0 qset trade-times-total 0 U) _& t+ {: p* L- _3 B
set trade-money-total 0
j3 Z. R$ Z- i' U6 @8 Yset customer nobody- X$ g& v3 x% X( m! d Q5 H
set credibility-all n-values people [creat-credibility] Y& z. e- t, b3 A" _! I/ e
set credibility n-values people [-1]& F) p8 Z' e4 D/ V
get-color7 [- q4 x9 w( }) N* C0 K/ l. B
2 ^. H0 m7 o8 T! c
end
& D8 w d6 U, {2 n: A( E, q' L7 q+ u1 n! E8 R& Y
to-report creat-credibility6 F5 d6 S% Q6 ?5 A
report n-values people [0.5]
4 F" v' U2 i6 f5 b0 n% Iend
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- T/ x/ V9 f4 l( w! bto setup-plots9 M% [4 R: L) T4 |
+ `3 {& I' L$ E& I
set xmax 30
# n, x: z! n8 _9 C- O) R F. U K1 e9 A/ G- |5 M( [, R8 D
set ymax 1.0- J8 ~3 r+ p2 f: G% u) z0 E
1 C6 g% F$ i2 ~
clear-all-plots8 A& ?: Z; j {/ z
2 V" p, R: s' X/ `. ]
setup-plot1
+ `5 l: R# A) V5 t2 I% P
; F/ i3 U5 J/ l0 L0 ?3 Y. k Bsetup-plot21 \$ [' u' W7 }8 B
6 I/ a2 E2 O# m" k2 N5 K; M6 C/ A
setup-plot3
7 ]1 a3 M+ z; q+ h* P4 M" Send
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3 A `+ d4 Z( P: w+ {;;run time procedures
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3 q8 J! V$ y. R0 p: Rto go! ?3 v7 n$ z8 S: J& R
; o# m+ _7 l) Q# S9 t, m
ask turtles [do-business]; v: h# D9 |, p& R h3 g
end
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to do-business 5 g& P0 x$ B! ^& q+ U
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" o2 t' `0 ~% |rt random 360( M1 |, f. G+ q% N0 `
! D& b0 u& l, d- b
fd 1
. z/ U, ^/ H- w9 e8 }6 F3 p1 H7 N5 h
7 u4 f6 C g8 ~( fifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
+ N, v {4 F* u0 l
1 [. ]6 l+ T7 m. e7 L5 G;; set [customer] of customer myself F1 q3 o, ^8 g* H" P2 A
+ L9 @! h x: v7 Y+ `
set [trade-record-one] of self item (([who] of customer) - 1)& p4 t0 B& g1 a4 T0 r0 i
[trade-record-all]of self7 a0 A% u- z4 u* _) l- E
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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2 C R4 J: ~/ }" j. g9 Zset [trade-record-one] of customer item (([who] of self) - 1)' b0 @5 Y/ N: j3 Y/ S& k
[trade-record-all]of customer6 U+ n" M/ m4 R- W9 ^
* X2 ]6 o$ o3 ~, A" d. z, Iset [trade-record-one-len] of self length [trade-record-one] of self
3 i! M! d2 j Q0 W( S: _( {$ E
& v' j# f6 |6 H& e' Rset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
/ B" P- h, H Y$ C7 w;;先求i对j的信任度
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if ([trust-ok] of self)2 F4 i; W" Y! S" w" R; T T
;;根据i对j的信任度来决定是否与j进行交易[* f4 e; F2 A- [5 o
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself$ v8 K! U" `, X# f" F0 ]: k& _
% p4 C% l2 L2 I3 R
[
) ]* j7 K$ C1 D3 K
1 ^- i& d' ]: L; n/ Kdo-trade" q+ l- l5 E9 H- t7 T8 J3 {" o
( i3 ]1 [+ o/ r- j
update-credibility-ijl4 ]5 z/ H% K. J& U
+ B9 U" A& }$ } G7 R# P* Z
update-credibility-list4 `. B% u h: f! {! G
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_" G3 Q' @# t3 h
update-global-reputation-list/ A* v4 l9 s$ i# a& S @
/ {! d" }: [0 d! Q
poll-class
1 {4 t" J0 r5 J) [1 U* K! x' l- [ e2 B M7 U
get-color
9 u1 `) M w3 s! p2 v/ _! p
( g5 s7 K# u4 h0 G5 x]]+ }! A _) V; h+ G
/ o" k7 C+ J `
;;如果所得的信任度满足条件,则进行交易; q1 S% u L' {( L
8 G6 I9 [6 U7 F2 X$ A) y( Q
[
# @4 d# I+ e }/ n5 _4 j( y3 B) I& l8 \ _ x; h
rt random 360
& c- l* m) t" E$ A& ?+ u! m
: Q; [# _8 P2 h+ n) |, ^fd 1
3 k o, i) P3 \6 _- I8 G+ t8 V: j! x
& n) Z9 y! c1 a4 B {! ~' T]) Z( p Y4 o7 O; ?: O
2 r& I1 N% g( w" Z; E4 [/ U1 }4 p. {
end! @* j1 w# _( L4 F
' c. F: y3 g* p( G+ _to do-trust 1 s5 K+ N, u8 A/ W: u7 M
set trust-ok False
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# ~ i5 y# R: i+ J. l! P' r$ H; jlet max-trade-times 0( T0 I( K: i: q2 |, f
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
1 l1 {/ K: O6 X! D# M- Slet max-trade-money 0% q6 m) U/ H9 h! ?7 e
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' \6 z0 W! i8 f
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
+ j' W; x+ K( L8 U/ _4 z+ ^& k4 X4 \; W+ M4 W) `7 ?3 T
5 m. P o3 H$ k0 |get-global-proportion0 L1 |& o7 Q2 b9 z0 l% `7 u
let trust-value( C9 }5 i0 t& m# g/ z9 E, y
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)9 V* g; M' u5 [% G) w# |
if(trust-value > trade-trust-value)1 c3 _% U. N: N. p# d5 l) [- Z
[set trust-ok true]' M4 Y2 @5 b/ s& v8 Z% m
end
* D) t; G& A g5 I9 h/ B
( E# t& @8 S0 H/ ato get-global-proportion8 Z( R3 x5 b& f& V* F5 s
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). a W+ O8 V: l9 f2 S' K
[set global-proportion 0]5 m# j+ i8 B9 X) S- N3 ~4 r
[let i 0
$ O* n( ~5 l; R: ~% \let sum-money 0: s/ k4 u6 E7 u: Q- l( [% u
while[ i < people]
" Y. I, t8 L: Y5 p% D1 Y[& m7 S- a" @, \+ J; S/ ?% w
if( length (item i
) Z$ `9 Q, `) B5 } B n[trade-record-all] of customer) > 3 ); ~ @+ D' E7 l2 H6 p: {% i7 q0 |4 o
[
5 C% f: f% p4 y4 |( e. P5 @set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
, u0 r: A6 t2 X1 j]
* g+ M% e. V7 ?9 i5 `]; m C% @% @* L8 Z4 P4 a
let j 0
3 B$ V: B; A: Ilet note 0* M5 a5 D% P* Y2 [5 v
while[ j < people]( F+ s# j) z9 N) F4 {
[; F9 [5 k4 l8 f* t
if( length (item i
6 O" f7 g1 q' r* O5 t' x: H[trade-record-all] of customer) > 3 )
2 m7 }! t$ x$ c/ x! B7 S J[
4 m6 s+ s7 d0 I, |0 d/ G8 s n: ^. v5 Difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)3 u( |4 _) R$ y* C+ ]* n1 t, U( B
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 ?) V% q, [( Q7 k[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' ?' X4 [2 G. L2 W5 Q/ t]3 c+ H# {3 c' o) C# h. M! f, W" g$ g
]
9 e* n- d! ?; mset global-proportion note
S4 {( d+ m2 I" ]4 r2 U]
8 i" G* t1 e; e' i& o. j @8 X+ s! ~end
! I9 L7 c$ o4 ~- z. |, Q1 k) ] M) s+ u5 l+ J- _( x6 k# G
to do-trade: j4 G9 `- R7 v
;;这个过程实际上是给双方作出评价的过程7 q1 C9 S2 V' f; K n, [
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价/ t1 y) j# z0 q- E- g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价5 s( v* ~2 J0 _ R
set trade-record-current lput(timer) trade-record-current
# Z7 _7 T! m0 ^* S0 H) ]8 m9 W0 ^;;评价时间8 \( h. t0 R7 n# w* b+ d( t4 B
ask myself [
1 H! U; A, ~. }7 q( I5 U& hupdate-local-reputation8 h3 I1 D; p7 M" K% D+ U: d
set trade-record-current lput([local-reputation] of myself) trade-record-current! s# q3 a5 P ~. U1 g9 z! ?' D
]/ q; }) n3 r3 _
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# Q$ c# f$ [* Z9 p
;;将此次交易的记录加入到trade-record-one中
# Y- j$ U1 ^) V( i) N6 P9 i5 ]% ~set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)" L7 `7 {6 f& B5 m" J. t$ b
let note (item 2 trade-record-current )
+ i& G. p0 U5 h( F; {set trade-record-current" O. i; i, S) `% E' i: {7 v' @3 S% Z& L
(replace-item 2 trade-record-current (item 3 trade-record-current))
- \- q, e2 g& h+ ]set trade-record-current
: v0 ~ R! E3 k" e(replace-item 3 trade-record-current note)
4 d. [( K0 H: [5 w/ J7 j
+ [& q, C+ N+ X, R$ a- F' d2 O% f: m; y1 V3 [0 X# o
ask customer [- Y/ m+ D5 j9 I* W, \/ k$ V
update-local-reputation
/ |, s: d( ?4 Oset trade-record-current5 Y7 |( \9 v, U4 s. z
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) : N9 b8 c& S2 v( M$ A
]4 w7 i: D3 `% {. ]
6 J1 _; y7 K/ }) S& K: p/ G) q$ K
% ?9 k1 \ R& }8 |2 @: m) F. q+ {set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
* E6 u8 h6 r( c& l/ [7 N2 z! R& d1 b A0 W$ d! u
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))( S# z% X4 q" t6 a7 P
;;将此次交易的记录加入到customer的trade-record-all中
: N! H, v+ k% y% a& P/ }% D* l+ q: mend% W+ X; t* e' ?( i6 L& Z, ?/ M- ~
+ {4 t0 g+ p+ i" C% J6 [to update-local-reputation% `# ~4 A$ f: ]$ a
set [trade-record-one-len] of myself length [trade-record-one] of myself
% m8 G/ y3 ]: G& i1 n0 i. r P8 Y- x, t1 o
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;;if [trade-record-one-len] of myself > 3 . U4 W$ t+ d2 C+ u. p% U
update-neighbor-total
$ P% O$ I6 J8 O4 H0 x5 \' h0 R;;更新邻居节点的数目,在此进行
: [: V! z* e! m& c$ Ylet i 3
H- P- S; C' t" Jlet sum-time 0
% m, F3 n( k0 F/ O1 Kwhile[i < [trade-record-one-len] of myself]" v( }0 k/ y5 x
[
* }7 X; | k4 [- H lset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' ^- F9 g, ~8 N) Q( m
set i+ B" m* D! Q, D* X* x
( i + 1)
, N. f3 n4 ?- d. y% M]
- {! {" Q3 k& @let j 3# {. G. Y* K" a8 ~, K
let sum-money 0' D6 n2 [. B+ n) D3 I
while[j < [trade-record-one-len] of myself]
2 j$ X. h: L) _1 |3 }[
+ x6 L$ b1 U0 W8 m0 y* j8 h; uset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)' D |7 w9 s! Z* m" r
set j
$ m3 [5 t8 Y& s& c z& d M$ T# \* D( j + 1)
- p! q9 p, s2 q7 s4 \8 U: k7 z]
, d- z1 F, x: l% F3 ?let k 3; \2 x7 U8 g( a% H
let power 0* L) l O) z' R: X7 C3 X( u* l
let local 0
5 l( m0 W; o/ @2 |* Owhile [k <[trade-record-one-len] of myself]
/ J( e5 e, k- R; i) s6 L2 F3 q0 v c[3 L S# O2 v& j/ Z3 O# r: Y7 `0 i
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)
1 R# q. h3 p" G1 Q1 oset k (k + 1)
) c! O' B% ^( j2 N( u: }]7 Y% J; z& z; `* M' P4 x
set [local-reputation] of myself (local)% [' A3 @% I4 S/ B2 C2 t3 x
end6 G$ `* h% c$ {+ e4 }
" e) k' @" ^! }0 X- @to update-neighbor-total
8 m- x6 D1 L! `% b
$ N2 c7 P, z0 g9 iif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]( c' m( @& E: F* ?4 h0 U
1 K8 h9 j8 P: h1 E9 ]1 ^9 ?2 |) S9 N3 T0 K
end
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1 o- q' o# C; R: Ato update-credibility-ijl
5 v! {' J: }! A' z# x# y& J. H! o0 a" N
;;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。: A, L% s( [% L# B) R! ~$ n M
let l 0
2 S! a* `( }+ T; F# N8 kwhile[ l < people ]
' }# \, t; N; E( m/ 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( Y6 G7 l* k# j* k" K1 U
[
V$ u$ c( ?$ a, Hlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)! a/ C: H% |9 X
if (trade-record-one-j-l-len > 3)
; Q* R4 V& I8 s0 g[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 Q) k" H6 T$ j
let i 3+ ]$ z& l3 k" G, }1 s
let sum-time 0
4 j, o" t; @" C4 k; m7 Y9 S Jwhile[i < trade-record-one-len]8 u: n- J0 v4 c7 ^1 Z5 X* {
[
; r3 Q% Q0 ?5 g4 K; V8 A" [1 qset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )6 U! n q% Z* ?& G
set i/ }+ h+ }/ t: h$ G& {
( i + 1)6 p9 T9 e s: i) a$ l
]
/ M& w3 _ o# ^) ~let credibility-i-j-l 0 e7 i& _9 h! J/ Y8 D8 l
;;i评价(j对jl的评价)5 X2 E- e3 V2 o' N
let j 36 M/ D, b+ D; [% Y) F/ k b: ?
let k 4' a: X! p/ v1 s! K k2 x8 }
while[j < trade-record-one-len]3 L0 d' E# o+ U/ V
[' F. [9 O. C! C9 Z$ _" \6 V
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% D/ k- A- k0 i" c" I
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)
+ T8 t0 \& d) I+ qset j
# Y3 d& }& j8 i/ V( j + 1)2 H& L3 E+ n1 e% j8 M
]5 {. _: K) r! @5 u) W- a
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 ))
" z N( g; o) q
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j, x( C) v$ W4 G$ p2 olet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))4 M, l6 P" q/ ^3 N6 V
;;及时更新i对l的评价质量的评价
2 g( O' i( Z2 J0 E; o( gset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]! n% E& v9 m0 Z" M; U S% h% f+ {, Y
set l (l + 1)
. @# A* p r' c# U# T( R]
3 F5 X' m. T$ O" r) i9 Bend/ l' ], p$ A7 N, t! P3 Q
! Z9 _/ t) ?3 Nto update-credibility-list
* m$ b- F4 v, hlet i 0
2 T3 W) D! |$ }/ P! h; t" H/ Swhile[i < people]
2 z3 N3 B" C8 [[
6 h7 F7 A0 [2 x' Q2 nlet j 0
6 s* ~1 ?' Y( {9 {( {$ e8 rlet note 0+ `$ p' o/ Q5 J3 R u- m" [* h
let k 0/ i2 P# B0 V5 }8 i- Y
;;计作出过评价的邻居节点的数目
; B6 H0 \3 X1 A( ]while[j < people]
& A# o- @# p3 \6 q c. o[
$ h9 c7 h6 `) g# n* sif (item j( [credibility] of turtle (i + 1)) != -1)8 ]8 y) I3 r$ k0 C7 v
;;判断是否给本turtle的评价质量做出过评价的节点$ M7 J; P, `/ |$ D5 P, C3 [, u7 r
[set note (note + item j ([credibility]of turtle (i + 1)))
( k. @3 s: r( c {;;*(exp (-(people - 2)))/(people - 2))]
- ]% V5 n0 i7 [+ k( Q5 p4 oset k (k + 1)
! |: i) Z, A* n; O, o6 \6 v6 A. l$ Y]2 q' e( Y" _! e- U F, v
set j (j + 1)
$ D, c: V* Z( a+ e. ]]
& p! R" [' s, I dset note (note *(exp (- (1 / k)))/ k)" g/ Q- U" E. u7 G$ r
set credibility-list (replace-item i credibility-list note)
% l* J3 W& J: N9 b* eset i (i + 1)( a# e" u! I9 x" R
]
0 I8 M6 b+ F# A b! k3 W8 cend! F- b; f5 y5 B
, ]% B* r( [: f% G; d
to update-global-reputation-list' L; U6 {% J5 }' Z- z' M$ ^
let j 0
3 n8 }7 f7 a5 B! Y. bwhile[j < people]
9 C6 W6 b& o0 k' g5 J[) B/ C+ m% w" y$ x- V/ L
let new 0
+ n. ?* F U( b8 U# v U;;暂存新的一个全局声誉! o) H4 O" F, |. e- V
let i 06 G6 P% m8 E1 N" |! M
let sum-money 0$ N8 E( N7 [0 O+ M. r# C0 c$ b- A
let credibility-money 0
b8 {* H' u8 c0 I7 v: X4 N% fwhile [i < people]5 X0 G$ y2 ~/ e6 M, Y
[
* K% q4 b" P* l. D3 N& f, ^8 [set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
4 M9 y+ z+ i. E; jset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
( y9 s9 x$ t% R8 g0 M6 R: K3 Rset i (i + 1)4 R* B: b6 r2 `2 O
]
( C) S0 x7 [% Y1 flet k 0
3 ^0 M+ Y7 G7 V/ x8 t5 Jlet new1 0
$ @# ]' D8 L6 U6 W6 _while [k < people]
2 c2 a6 I @; L2 |+ d0 G' R2 f[+ }& H7 D! P: e/ c
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)
. d5 E( o) i; P+ `# K iset k (k + 1)2 }& S' p. U$ q3 K
]
' q9 Q1 L- k; P+ ]( Vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) $ N* n1 L: A9 T! }; b
set global-reputation-list (replace-item j global-reputation-list new)7 _1 J( b0 F0 L2 D
set j (j + 1)( M, ]! u5 E5 _; s; _% J7 p; a
]
' N I1 l1 O9 I% Uend
6 @& Z- H ~* v# C5 K. @* c* K# K7 O% U; ^0 n1 s1 g' B
2 `% s" }' q2 f$ n& f% h. w) |
. ]* _7 @6 |/ E* M; vto get-color/ P& G7 y5 ~& [6 d
* r7 ?2 N; A/ E7 e W. [, Kset color blue
( G# h' i& @) v( ?end' }9 k& [( H8 n s9 {3 H
) V& g8 X6 j- h) W8 kto poll-class
( z; p/ a" d- r( {# y3 tend
0 c8 G4 ?. u+ w8 S
$ y5 s9 [& w9 j5 J8 o! U2 l( ]to setup-plot1
5 ? l h; G; N
5 ?7 c: K- w: B) yset-current-plot "Trends-of-Local-reputation"* K2 W7 q, Q1 L& D
8 S9 o( ]; G. V6 b' J9 tset-plot-x-range 0 xmax
1 E7 f4 @* l* ?* M
7 S2 F& C5 C1 e( iset-plot-y-range 0.0 ymax
3 S- w! m( u5 q: I$ @end
. C2 k, w5 ?: h9 i& c# w! U/ ]3 d X4 R% x. g* b* D
to setup-plot2" r% @6 N+ `# m2 i. }/ B
: f+ _1 Z# c. c- j5 Cset-current-plot "Trends-of-global-reputation") A& v% n+ i& G
5 X3 q* V: j/ q9 gset-plot-x-range 0 xmax- }% u+ ~9 _0 Q3 B6 O; h; v
, w6 I/ N* q8 N2 C: Q
set-plot-y-range 0.0 ymax
& u4 ]. r. G( K& j% {- P# G1 iend
& t, N0 |! y( `0 t& a: h6 q
$ a- ? Z: K1 l% ~$ @9 W, }to setup-plot3, i' R, C2 w* y0 G3 q
0 n1 g& ]7 D) f% J
set-current-plot "Trends-of-credibility") W9 ], E. ?$ P4 u$ ?$ k' [
+ W; H i+ ]0 B% T: sset-plot-x-range 0 xmax
: C; B% v2 m$ B7 o. b0 F5 {$ c9 v+ S7 A' U& q0 P/ R7 s* S& N$ m
set-plot-y-range 0.0 ymax
0 z2 e0 P8 D) T6 l6 k) O( t- @end5 n ^+ M- N9 a" _. W2 p
7 m' k% [3 Q/ }0 e
to do-plots8 P5 B0 U9 z6 J) E1 X
set-current-plot "Trends-of-Local-reputation"0 c9 r* e3 O1 [5 d/ f9 ?+ F
set-current-plot-pen "Honest service"
8 }: V$ [! e" J# Q: a! ]" D! Wend! p( L% X9 S+ Y- H
1 N. u7 r! N1 M5 F5 J[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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