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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
( U# n d. u% ]9 H2 P5 r* p+ k: Uglobals[
3 w, D0 C4 i( Xxmax5 H- G" }! R# i, `- p' I) @
ymax4 g, d+ ]- t0 h) j
global-reputation-list5 H. U8 N1 O& G1 k$ q% Z! i. z
1 Y" J; V! j; ]& H$ R* M;;每一个turtle的全局声誉都存在此LIST中% U7 _' \4 a7 c& x: o
credibility-list
& L. g3 t9 i w1 X% c4 Q. P0 @. i;;每一个turtle的评价可信度
/ K' X/ E% L- p+ y# {* Q' h0 ^honest-service2 s) \+ ^/ Z2 f6 k; Y" d
unhonest-service" `- {% G' M) u: O3 x9 C
oscillation
0 P& M1 Y% _& L0 [7 frand-dynamic
$ T: J7 C: R4 J5 i, \]4 L1 n/ X/ A9 Z2 l" ]5 @
0 x. `1 V! [0 z5 X- h6 Aturtles-own[; m/ c8 u6 G* K0 M+ n. ~ L8 ]
trade-record-all& K0 X) E6 t3 B; \
;;a list of lists,由trade-record-one组成
, V, y) \, ~9 e1 otrade-record-one
0 @8 x/ d5 c5 n) ?$ F3 s;;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 r" e7 _8 \9 o! z1 u. q) i' Z' _0 |; 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]]
+ Y8 X/ W+ W5 x" u' f V. htrade-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 F' v( Z5 S+ Xcredibility-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" Q4 l2 S$ {; I# Y7 `/ f* L
neighbor-total& E1 I5 u4 f8 Q" @* ]: ^
;;记录该turtle的邻居节点的数目
) g' `+ ]- v3 ~trade-time
9 j* W9 l# H7 ~5 G/ k' ^4 {2 };;当前发生交易的turtle的交易时间
* ?; u" p; M0 Y8 u. J6 Qappraise-give
& L3 R- q- q6 w9 W+ k;;当前发生交易时给出的评价
. b4 M) \( ^( xappraise-receive
; e& b, Y5 i* N( x" x- W: m;;当前发生交易时收到的评价
; y- p3 z' ]% q X7 z9 Z' qappraise-time& |7 S5 [ W5 F. [+ C
;;当前发生交易时的评价时间* D& k; r* z8 U* E' b) i1 F7 |; P3 a7 L7 s
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
- w& ^5 B$ x: Etrade-times-total" o. k& g7 D3 s6 c9 F5 I% Y8 x% Z; d
;;与当前turtle的交易总次数- g) x9 H9 p) g+ o6 F! C
trade-money-total
* p8 X! p D! i9 E2 ?;;与当前turtle的交易总金额0 Q" F# q$ R0 r! p/ r: Q3 Y" Y+ V
local-reputation
9 f1 A5 Y7 O: {6 i5 s3 o- C1 M! f8 sglobal-reputation1 u d: v6 u6 G( w. {3 M- L! }9 g/ J
credibility# v7 ~5 [ n7 E, K) [
;;评价可信度,每次交易后都需要更新1 H- o8 u! B7 _" p
credibility-all
$ B' V- m$ c7 X; v" W8 I5 X* 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
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2 r4 e u h6 Y; K' _: E;;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
w9 b' X1 c8 o& k! _ _" Z& m3 f4 Icredibility-one
0 H3 N/ i5 B' p c/ J5 ?8 s1 j) [3 |;;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
- e2 l0 G& W+ T5 l! Cglobal-proportion
0 N: ^: \1 u+ D, z, g+ D& E, t" Ycustomer6 V7 m2 U' k5 ?; z4 v
customer-no. D$ E& r. @% @" \9 \! X/ y6 o1 Y1 r
trust-ok
1 D. e3 l5 Q: @& z0 Y2 ktrade-record-one-len;;trade-record-one的长度
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2 N6 M: i" @7 ^' B4 y;;setup procedure0 k1 o4 Y) v* u) q4 `' Y
+ |! S# ?$ y! ^to setup' l. G2 Q0 R4 u V9 a& e; R
" K# V) g( r) [5 i# \' X0 ^ca
% M" {2 A) m. r
5 h3 ~- y: u$ w3 r. h& Zinitialize-settings V5 U% k6 Q. v# U0 [, s: m4 F
, ~! P2 c8 C7 ~ d' D$ H2 r/ s
crt people [setup-turtles]
8 `* g" @% M# @( l! P N y1 ]5 o0 P$ b$ l5 V. Q4 M
reset-timer
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( |: X3 l" d& m& ~& r7 }poll-class6 [$ @; S+ S+ g
+ V% i+ W) |8 {5 D( s, j9 }( |setup-plots& E5 l$ D: P8 X5 M# C' A! A
; I' z; b/ V$ I3 L1 I
do-plots
! V! w7 }6 W' e, G; \end0 R$ M. l. D0 A( o' P
. j @' d8 H) m6 |# k2 N
to initialize-settings& i2 Q/ M: K# _ X9 J
. \; Z2 _, ~* Dset global-reputation-list [], e# H* @0 U2 q' y
% W1 b% Q2 R/ `) Hset credibility-list n-values people [0.5]
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set honest-service 0# {* ~* w& y8 P( B
" U, p& q, ]5 z* b6 Iset unhonest-service 0
9 Z/ q3 Y" `4 M( W" O
2 C' Y3 ?+ f) z2 r# o4 qset oscillation 0
2 C9 g1 E/ O' O* r3 {& }
* S/ ~* o7 ~# x! I; ~1 Y. Wset rand-dynamic 0+ ?+ C4 C7 ?6 j5 Q; L
end; ]: O4 D4 V- X
9 e9 r5 N8 ?) L0 D4 b/ _: x2 L
to setup-turtles 8 q) h' e5 Z9 h1 `" _6 v4 h* W/ F
set shape "person"6 O1 f% X6 o* t; O* B: y. V
setxy random-xcor random-ycor
# j* l+ b( B; u5 Xset trade-record-one []( ]# M" x- r, E* B
- `. r# f- V" C. e1 h8 x+ Oset trade-record-all n-values people [(list (? + 1) 0 0)] , z- t1 {: ]& ~0 W! d
1 I; t# M) X oset trade-record-current []
( z& J* Y6 E' m- gset credibility-receive []
5 y# D. e$ }7 s. b4 Iset local-reputation 0.58 C( C) h6 f7 e) O0 n1 k3 L
set neighbor-total 09 f. {& V2 \5 B/ S4 K W6 b
set trade-times-total 0" d V0 l% K* `- \" D
set trade-money-total 0
4 f) Z" O; Z0 x# N* I5 Jset customer nobody3 A: R1 z# G% @; D/ K% `; F* |5 {1 ?
set credibility-all n-values people [creat-credibility]3 f- s( t2 e; E# @- f
set credibility n-values people [-1]
+ T8 i+ s( a% R; w' {! Xget-color
% g' i& s$ g/ w0 S* Q4 }: P: G8 F6 V0 H# I. [
end' Y M# u4 m* F: [
" z8 p$ C8 ]' j' _4 S- W
to-report creat-credibility
" X! ?5 q- F7 G6 e6 R" N# Preport n-values people [0.5]& T+ S! a) E& |" @
end
9 k! g( X8 s# y
3 q. r) `2 Q$ k- e$ l" M' z2 Y8 gto setup-plots# m9 D$ z0 I6 g! o5 R3 ]
, n4 R( ~( E' ^
set xmax 30( }0 w( I2 A. [0 l d# k
) p$ y4 E) D/ ~( o. E/ E4 ~set ymax 1.0, d' Y, N! d' f1 _, R0 L/ t4 Z
: m4 S8 H& Y3 Y6 O6 e0 s2 R
clear-all-plots
1 [1 Z/ B: R6 K: n$ Z. x2 J3 f# v7 p- N1 i. X
setup-plot1/ P$ T2 |2 ^3 m; [$ Z0 r/ ^( t( A/ V
/ _( d% S1 u7 G w( H. C# o; ?setup-plot2
. J& e% m* X8 x& x s! k P
3 l' ?7 u4 ~+ g+ m+ I0 fsetup-plot3
s# H1 e. r8 x& \: _* E% K7 T: bend2 s7 D8 ^+ @5 f5 x! e7 L
8 E8 \4 t4 w, w( ]* y3 ^: x/ I6 p;;run time procedures
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7 {% ^3 p3 F. F5 \- eto go
- M- j2 b L" _$ `! y
3 r C, q) G: dask turtles [do-business]
( O7 k6 H- Y1 G4 z- ]$ jend! |6 Y9 `2 M: t1 L7 q. ~
* ]5 \' E- F1 a+ Gto do-business ' M. e9 }7 D( u% d: i
( Y, U- l' D/ ~- W. f9 m
0 ]7 k: y2 f3 k7 `2 Brt random 360# ~4 a5 \8 Q) N9 y; G0 ]9 u
8 [1 t9 @/ Y& Q' k0 r$ o
fd 1
' b, [% p r+ U' i
- A# I( p7 F8 F" `ifelse(other turtles-here != nobody)[
; b4 Q* p, @7 o+ y1 `
: s1 m2 o. i, _8 Fset customer one-of other turtles-here
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;; set [customer] of customer myself
Y+ k5 M- ^! P C9 ~: Y
' K0 e% l9 z) Hset [trade-record-one] of self item (([who] of customer) - 1)- y6 e9 w" U# g! G! u: A/ B+ s
[trade-record-all]of self% c k: |6 }* i( G
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self/ |3 ^3 G: \& q+ i9 G; i* E6 \
9 D2 }1 R5 C: h; ]! {set [trade-record-one] of customer item (([who] of self) - 1)
, {' L9 C) T" O. \: M! X" `( k" @[trade-record-all]of customer. U# K- Q7 b4 I9 G' a
% x/ L$ L% q$ U
set [trade-record-one-len] of self length [trade-record-one] of self/ K* N0 j2 ]/ o3 w! D
% i) E5 c* R# H& B
set trade-record-current( list (timer) (random money-upper-limit))
2 J% m* C% J8 _7 q+ b; o) |% Y
7 G: p7 W2 m" M3 s) pask self [do-trust]) @' P/ B/ R* o
;;先求i对j的信任度
6 D. Q9 E' k; W8 j
: M/ c; z, e% B" e( yif ([trust-ok] of self)
' y) {1 R% K% ~+ `;;根据i对j的信任度来决定是否与j进行交易[
9 c# s& z/ V8 X" y# d9 W' f1 nask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself0 Q7 y- c( L. E% Y3 ^5 R+ A
% P* |) g# f) z! a$ N& V( Z/ X[
% H F( I# {- v$ O& K7 Q" ^ A P9 d, m5 u% b* }1 X) u: c/ ~9 g1 e
do-trade4 k) q, O* Q- \) l- ^6 E+ o
* {; B& n1 Y- Dupdate-credibility-ijl
* Z1 b+ m2 K$ T! l* S
+ ^4 T* }4 W: b/ l) Nupdate-credibility-list+ S1 g" h* p5 v1 [0 H
# J# \* V! x( v" M0 h* u
* T T N' E* D' _. C* Jupdate-global-reputation-list
8 r7 @) G4 ?9 N( g( ~# O6 U" e7 P* u" q6 m0 [, Y/ k) t
poll-class
" i u( G: r- Z- l' y9 Y: g+ ^9 w# ?* A; E( G, w T0 Z
get-color+ W. j3 `4 v5 e I+ d }
& l5 N# e# v, j. A5 F# p, _]], g$ V+ G. j' N' L$ F4 \' k
7 r3 y' J% F% O4 @- y;;如果所得的信任度满足条件,则进行交易
* J4 k R# \7 I1 x8 w$ U4 W3 l
5 e4 c% G. {# ?* ]6 K[
+ s! u6 u' H2 d1 v, Z$ ^9 ~/ S
& u, ~# O6 m( ?# I) w5 xrt random 360
1 L4 k# Y( i, \& e8 ]( X% P- a( \3 ~. D* V/ K0 v! x( T' e3 p; i) i
fd 14 H* N" x- @7 v" n! F
2 E5 | Z3 ~; p+ c* D' Y6 c]
6 e4 y/ |$ K/ Q( s8 P s' c9 |8 v6 J, D8 ~3 K
end
) ?6 t* S; U" f/ r. D5 B r+ G
, G% C. g2 e, ]& Uto do-trust
( \" ?9 r% e5 }0 Wset trust-ok False
# S0 P2 s& s6 R* V: n H9 e. U) ?( D: X9 P0 G. w
) q+ ~; S: e7 l5 g0 Olet max-trade-times 0, v& Z+ c; ] W6 B
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
% g1 A9 J( ]- ^$ k/ x( R/ I4 glet max-trade-money 0
. c1 f, X- U4 O5 lforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
' c/ f3 l' N1 f# Q% [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; V! X6 z: ^. ?9 K( R/ e5 Y, k; f8 K
# {) L0 B& {' v# _% K8 L4 G4 g
get-global-proportion3 R9 n2 \2 E1 F
let trust-value
7 j9 k) a- d% alocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list) O) |) T1 x& j V( W3 [
if(trust-value > trade-trust-value), Q) [2 q) N) Y+ w/ p' ^% ]& i; c- O
[set trust-ok true]
# L- |7 W$ N" Y2 X4 f6 e5 o0 qend5 o& P' B5 W) u( D# e h4 k
+ [" _1 Y! c! B# a
to get-global-proportion3 |8 ]9 D( ?$ N; N
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), F+ V3 a8 ~0 T7 z: Z' d
[set global-proportion 0]# r2 H. ]0 k7 g& X
[let i 0$ L5 Q( \$ Z% |; B' b9 ]( t
let sum-money 0
) x# ~) |+ h. S9 ywhile[ i < people]1 o: k2 p7 h6 \3 J; r' i% ~0 F$ @
[4 l4 W' r. q6 Z) E r9 ^7 B
if( length (item i
1 h; @( a8 _" O% g0 l[trade-record-all] of customer) > 3 )
5 q( ]. V# Y6 X& |* [" r' u' C[0 P6 A: S% C! M& {7 x3 b( T" n
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
; p# \8 M0 i& K8 l4 S$ ~]+ S1 \; k5 j8 m8 L1 a. ?5 [! N
]
+ h8 R- Y3 R I, ]let j 0: @+ m$ G9 q! ^ x* @9 S
let note 01 o$ P) P# B4 U( I
while[ j < people]
5 D4 d, }8 I0 t ][7 b7 b' L# M2 r+ i7 g
if( length (item i. l5 N, r) D( t" |
[trade-record-all] of customer) > 3 )
8 e8 P1 y: T& c# o2 M5 v8 A[" N# D( Z( l2 t0 _: s G% U' [( n
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
0 W. z! e8 ~0 U2 E7 T, \5 z7 J[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
) I0 h6 u- j* A( P7 E2 ]3 ^[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)] `. S1 U2 t! S. z& h f8 q
]7 a& v' @, K' B- }$ E) T
]; `; \- O8 B) y1 c0 ?5 _, C# S' _
set global-proportion note& x) I% x$ j: ^3 ^4 l" I
]6 E- N9 A8 ?# E# `2 J4 \/ Z
end
# R' i8 ~0 l7 K% n G8 P9 v9 G& r M* G7 y! e9 }6 J- v9 q1 v0 |/ G
to do-trade3 E% e" Y( t9 z5 H: K
;;这个过程实际上是给双方作出评价的过程
' h% p/ _+ N3 ^1 r1 K8 hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
4 x: ?( k' j2 t8 \( Gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价$ r# ~5 Y9 S1 ?9 l
set trade-record-current lput(timer) trade-record-current) q% t) e. Y4 I+ u* C. l
;;评价时间
% r0 e' h0 N9 t( N; P, U& G9 mask myself [. e9 k0 {2 J) Q! R* D& ]
update-local-reputation
4 ^9 f4 i- X7 U# R% Bset trade-record-current lput([local-reputation] of myself) trade-record-current
5 T+ f" Z+ S; v N]( ]1 x5 {- b: e5 i5 G/ m! X: j5 ^- s
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
0 L% \' U; c) K) ^;;将此次交易的记录加入到trade-record-one中7 n- {" K: Z; C" E; i
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 \* S+ ^# l* klet note (item 2 trade-record-current )
3 ?0 e0 ~. B3 ~1 i6 x% T$ Bset trade-record-current5 s) B( J' r+ ~( S' s
(replace-item 2 trade-record-current (item 3 trade-record-current)): C7 T+ q; E e; p: K; o0 p
set trade-record-current9 [& x) I: g8 ~$ \' m
(replace-item 3 trade-record-current note)
1 o7 G7 @( j9 ]- s4 v: x$ G
( t3 f, ^( Q9 B( C/ ^' F
" m) f7 b7 i( x# h7 \9 wask customer [
( ~: l# G& X6 P `1 p) Rupdate-local-reputation
, e$ R- `, x) l+ Kset trade-record-current) z) ]4 R2 ^, N: J5 m( V
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ( W: g5 d: H1 q; }
]
3 f) D0 Z6 ~' S- E( ]4 u) O: H! d) A# b4 n
" g( D6 l) V# `7 |/ X7 K/ H* g
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer A3 U) y7 k1 O F; n
. e; w! N$ R% ~; \8 @+ u5 d6 ~set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& I& m4 a' o/ A/ k7 Q# b1 \/ ^5 B, J;;将此次交易的记录加入到customer的trade-record-all中% H+ }1 q. W# B q* q5 Y
end* z# O9 V. ^$ G. k0 I
( y$ x2 \9 S+ A9 k* p5 l8 R U& u
to update-local-reputation; H" l* G( d0 H# a+ |, D
set [trade-record-one-len] of myself length [trade-record-one] of myself
. ]* i* J* m. b, K$ t7 a; V3 B: H5 y- ^" u6 M
, M8 s; g( q1 y% ~1 _. _# N: J;;if [trade-record-one-len] of myself > 3 # |( N0 k& i' G# p
update-neighbor-total) J O# U6 _% f, V: t
;;更新邻居节点的数目,在此进行
+ t% G- ~9 t8 j9 L" Y1 C+ _let i 3' S' W- N0 J4 V
let sum-time 0
# F% A" U# X9 O2 N9 T% Wwhile[i < [trade-record-one-len] of myself] p5 M& S/ S# e* f
[1 y9 Z g9 k: U: m. Z5 y5 h5 J
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )$ g# M( l+ l4 |1 R. A7 }; W
set i. {8 C: S/ B) W# r ]
( i + 1)
$ b! J* ]) d! ^. P5 a]
- s$ F4 L4 N* i8 y/ Clet j 3' j( \% P+ t6 U$ u, C Z
let sum-money 0
8 B/ a" z0 w: n& _! d4 Jwhile[j < [trade-record-one-len] of myself]
) o: I/ z" \5 i% d( ]: y6 q& I[
+ m$ r2 c. O; s( f0 |/ Pset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)/ E5 M) e9 p4 b1 J; H& j1 Y! Q# O
set j
: m: \; Y4 D$ p' P5 \( j + 1)
) g0 R' _7 K; m6 \]2 n) l8 L% ?+ H5 Q% ] u0 h8 ?3 o
let k 3
9 d+ G7 j- s% N1 g wlet power 0
- B) D0 Y7 U2 i) U( Zlet local 0
1 S( R0 B+ z( p% Q9 C" x( owhile [k <[trade-record-one-len] of myself]
0 N7 c! V A4 j[
* G' T& v. D5 g# z5 E% B `) 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)
9 @/ r" s8 v( z$ u. j1 ^& E k' g7 Gset k (k + 1)
1 ]9 M& S7 K8 `# T]
6 q, N+ D* i' tset [local-reputation] of myself (local), W8 O# L2 X8 f! m/ Y# Q
end
- J4 c; P& p# `) g8 |
0 G; w* n* i# ^to update-neighbor-total- N) }; n9 R3 d1 h j8 J4 Z x
, }- K" C7 w- s* H+ Y! C
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]0 g% ?; \, ?" s' O
4 @5 J" d# X& \6 M# b, }
0 y, u1 Z3 R1 h, F; Q- W# N; g2 {end
w0 K+ d3 ]7 Z0 `( k) \) s
& a: y1 {6 V7 o) ]to update-credibility-ijl
, }( Y. J1 A) T: g; }: }
- x1 W" ~5 R2 e: z: y! [' H;;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。
3 x+ n U& U, Jlet l 0
8 G2 J8 k: U) p: `. u# Awhile[ l < people ]& a2 I& I$ B- K, ?
;;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# L- X. \; h' r: b
[8 ^9 Z1 N1 l. s; Z$ h( I% f
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)/ U" A: m( w2 W: z- e) ?) [
if (trade-record-one-j-l-len > 3)& ]; c1 Z, N$ Y! k) G; u
[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
. F/ t8 l! w/ s. Plet i 3
3 i2 S* R! W+ P1 \let sum-time 0* E- }1 ~" Z ]5 E t% t
while[i < trade-record-one-len]; o) P( {' N1 ]" k
[
, g. b- N3 n# y/ D" P$ f: lset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
( w% H0 T; V4 B' S, ^! K( ]* tset i& C/ W9 x/ i2 f- h7 o; R* F. E
( i + 1)
9 \6 [2 s8 l' z]2 `( t2 b) i& N6 A
let credibility-i-j-l 0
, o* C3 u1 \9 P6 c7 A: Y' c+ ~* O;;i评价(j对jl的评价)( I( q. }0 p; Q. V* s
let j 3( F, T+ G. ^1 x$ m% y @) Q
let k 4
3 v% U( q3 }$ jwhile[j < trade-record-one-len]
3 g1 z, F' x5 C& A2 e" f# S1 g2 x[
6 ?( D- d$ F# J; b/ u7 l# d xwhile [((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* Y" Q/ q* s& D/ _2 z* y
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)
* \5 N# F. B m' q2 a* [# ^- W6 _set j
2 x3 X/ m; B$ P( u5 \' p5 c+ l( j + 1)! L/ z2 m# l2 M
]
- t$ ^# T/ U" B3 N4 }$ ~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 ))
( p9 f5 K# f: J7 ]5 D
2 R- D1 L1 Q) `, L3 A
' d' a0 x) J( C3 Klet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
* I6 p: w$ E6 X- i* b;;及时更新i对l的评价质量的评价0 L. P- Z1 W" |1 ^
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]& w7 g+ Q. }- f x: l6 ?
set l (l + 1)* X1 {7 s# Q7 `# Y: y: J
]
1 B# K3 C% x! g( ?! [' }' gend3 N, n# _$ K# E5 c, f4 z8 D. }0 V
) a& p* |4 R! f
to update-credibility-list& ]0 T# }% C+ m, E+ i
let i 0
! _% M6 n- B0 U" ^6 @while[i < people]
! i2 `. j' Q0 j" [0 ?[
( O9 l c9 b" C$ Q- c# T C3 L N) clet j 0! I6 Z- m J7 a" @% J8 h. P7 w7 R
let note 0
9 Q0 q9 Q- g. a+ |$ k# T5 q4 Ilet k 0
+ L8 D# G+ g* G;;计作出过评价的邻居节点的数目. q4 t. s& h4 \/ W
while[j < people]5 ?9 t4 |" g7 D9 m) f& b
[' c+ ]9 n; M! O0 @! @
if (item j( [credibility] of turtle (i + 1)) != -1)4 E1 u2 T! R/ _$ I. U# {! k: B
;;判断是否给本turtle的评价质量做出过评价的节点! k. N% B3 W+ |9 G
[set note (note + item j ([credibility]of turtle (i + 1)))
& @6 t; f. g9 j' A6 B$ q" P;;*(exp (-(people - 2)))/(people - 2))]
* E6 n% k- q' I" Y6 S {set k (k + 1)9 X% X* b7 N5 z9 o
]
; S" e; @1 [& ?/ X- e: eset j (j + 1)( n) C% E I$ H; E; s( ^6 D% }
]& i' ]7 Q) T2 S- X* g& F$ C9 H
set note (note *(exp (- (1 / k)))/ k); J& G6 t' [0 d% Y
set credibility-list (replace-item i credibility-list note). L: }7 }' P. s" X2 I1 r9 y
set i (i + 1)
2 D1 w) [/ H. n( k) e( a) U0 \]" J; m5 n' m6 |# K/ d
end
- W3 t3 C" w" b: b2 ]
$ a1 L) w2 P. d8 O$ `* wto update-global-reputation-list; U$ G9 r3 u: q
let j 0& B* ^5 R5 q% M( n
while[j < people]5 E. W* s. c8 {3 [) Y1 O) T# s
[# \+ {, V4 _, l2 N v7 c
let new 01 o/ ]+ `* x) q) P4 K" H
;;暂存新的一个全局声誉) l( G0 P3 z9 Y( ^! m7 I/ H
let i 0. i8 J, `# m" E3 t% z0 ]" p
let sum-money 07 b6 x5 d0 |! j$ D C& O% ]' a7 d
let credibility-money 0
* U0 v9 q- h9 Y+ n8 Y7 J. T+ |while [i < people]
! }0 I! l7 Z( y[
9 N) h$ w4 n. gset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
+ e7 k$ { h: j8 O- Yset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))& K5 L2 L6 x: L* G% ?
set i (i + 1)
: i+ J+ `8 w# ~]8 d7 b% r1 m; [6 A3 f5 U2 Q
let k 0
# u, m0 |$ G1 t8 b' Glet new1 05 o' m/ x/ p, Y" ]) ]
while [k < people]2 R% v& |1 d' D1 b+ x
[
9 X8 A+ |2 \7 T" |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)
# ~; ?7 a1 r2 B8 S, K" yset k (k + 1)
8 ]6 O: c& T3 c: ?% R/ O* k]
- E3 Q. c! E, h7 Pset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ `+ `3 Q$ V/ m! J' j" O kset global-reputation-list (replace-item j global-reputation-list new)
- G. k. s V, i5 |: vset j (j + 1)
4 g1 \. s' t% V" b6 V% I% K]) e0 i& m* F* n* s. S! C
end6 x& C5 V1 R% |* q% m
* D; d( `' o4 g3 F
: g X, \: p8 e. c }0 s8 d6 W+ o5 h* h' m& w+ i
to get-color
6 J: Q6 a4 N. C0 \7 s! y/ W* L
& ~+ F+ b' I% T* @; \6 rset color blue5 u! e! n9 `3 \3 r0 X
end
8 A# @0 s. c. V4 y+ {+ v8 l% G& y6 ?/ d$ n* K1 F# i# r
to poll-class5 I- @; e. N/ w2 D8 s. B
end! B8 H; h* F- V
a* O/ V; S1 C. c4 eto setup-plot1
9 I* ?; G: C t& w
1 p; P( i$ u# d$ g; b8 iset-current-plot "Trends-of-Local-reputation"' A( b8 z d* u. I8 Y
f, w- z; ^2 e- S/ m2 u& R# ^
set-plot-x-range 0 xmax
! V; A8 M2 l1 T" Q6 y0 [
6 ?8 o( Q4 t+ ?# {! lset-plot-y-range 0.0 ymax
- I/ c% z* W8 ^0 n8 P* e: \end
! b3 E |, u; t u+ T& ~( ?2 L
9 f0 A% U! [' v: t, |2 m+ d2 lto setup-plot2- R* k! g J" V5 m1 H# @
% y( `" K8 w! k3 n1 V2 u, `
set-current-plot "Trends-of-global-reputation"
# e5 b7 `' i# a' u# ^/ P- K. Y) k1 l2 {& E; ?1 T, m& `
set-plot-x-range 0 xmax9 ?1 @3 e0 ~8 [: f' I: |
2 v/ ?5 a5 K* c8 G0 o6 ^set-plot-y-range 0.0 ymax
* t# b- d! `* V: m Fend
; d4 h! V# M" G+ G5 _ B/ v8 [
: G) K7 @' |8 X$ ?$ Z" C% s& cto setup-plot32 g( L |' f: z0 L" U2 |
. B3 ~+ z2 U+ B% Z" n+ Pset-current-plot "Trends-of-credibility"
3 f0 n' _, X2 U$ q3 l7 X( E+ p2 K6 b- y' ~
set-plot-x-range 0 xmax
% _3 K7 O$ w" W8 |3 x% K# S+ D, Y e( {2 _3 W+ S- H: s
set-plot-y-range 0.0 ymax3 l0 ~' e- p% o% r" m* E
end( `2 G- V8 J) J" A
9 [3 A: |5 z# ^
to do-plots
& R6 d5 t9 i- Jset-current-plot "Trends-of-Local-reputation"- x4 o' W8 h/ I! v. H" _
set-current-plot-pen "Honest service"
# y# t' P; u+ Y; Uend7 s. y8 N( [6 S7 V$ \
% a4 ?$ z( Y, `) j[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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