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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
5 _! n% H4 @/ U4 Gglobals[# w7 M6 a4 c8 x: e- G! [
xmax
0 D# E% O5 T8 X# Z$ U; iymax
" M) N2 G( E0 @8 Zglobal-reputation-list
+ g$ z J3 q+ u; J9 J
" V6 j" m4 G, w3 }5 g" c;;每一个turtle的全局声誉都存在此LIST中3 |; q! a5 L7 X5 c# ~$ x' j
credibility-list [: {9 |( A! {4 K
;;每一个turtle的评价可信度+ x) ~9 W( R8 ]0 F% F: U
honest-service
* k! v( A7 K6 I9 V( T sunhonest-service
, D5 R# t: h: ^% O& yoscillation9 `: [; S0 x/ V8 n
rand-dynamic
0 ]6 P1 o# G! P. F, H# D$ R* M9 k]
3 l, g4 d& ^! e% z) \
0 G/ Q: K5 X# d8 Y3 M( Zturtles-own[
7 |% r: t. n' N, h/ ^trade-record-all8 @# r9 ?0 [7 C" s
;;a list of lists,由trade-record-one组成
4 J+ {% s& U# M( c1 Qtrade-record-one
" d; k9 ?7 ?, _# u0 F;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
7 G1 R0 J- p$ ]7 ? k( k
6 Z3 \1 u y& i;;[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]], Q. N c$ z& y/ S8 H3 C
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]
& G# z- m& [5 x0 L9 O* Ecredibility-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
( h( n* @6 t$ x9 F; Z: v# Y1 ~8 Y# Zneighbor-total: E) g" X; r* x% K
;;记录该turtle的邻居节点的数目5 [! f9 x# g- V. D/ e- L) ~
trade-time
5 I2 u8 q( t1 o6 u; x& D;;当前发生交易的turtle的交易时间
; S5 g7 w) \/ m4 }$ Vappraise-give( z) P9 X" c& U! f0 ~) p
;;当前发生交易时给出的评价7 J* v8 M, W7 n0 Y
appraise-receive
# `0 `, h7 Z) r& m( s7 g* n \;;当前发生交易时收到的评价
) y2 ^- M6 a, s% M: {9 Mappraise-time
6 t! s6 o: C# v0 e7 ?( E( ~;;当前发生交易时的评价时间, S% D( Y$ d6 u% x& J) J5 S8 ]) n
local-reputation-now;;此次交易后相对于对方turtle的局部声誉8 g6 H/ y$ U3 O1 V4 p0 o
trade-times-total n1 i" Q8 q6 |
;;与当前turtle的交易总次数! I0 n0 o9 q I. T
trade-money-total/ `2 B; v' Q* m8 z5 T5 u1 m
;;与当前turtle的交易总金额
. V/ [7 G" ~% glocal-reputation
/ t. i. P. ?9 ~$ o a0 O% ]global-reputation' a6 b E/ v) }0 |; [/ `2 O
credibility$ D- z" \8 T- I- q
;;评价可信度,每次交易后都需要更新
( n( A8 p( G1 b6 F1 {- h6 Dcredibility-all! u* q* f1 K& R) z; K
;;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3 n7 R) v' l4 c6 N3 @
' j: @5 b' ~! n! U7 [3 w
;;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& q/ z* ` _! q8 \. V
credibility-one/ Y" ~ O% S! C! t. v
;;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7 r* h0 B/ i3 J5 \$ U2 y
global-proportion6 s* U2 k. L G" J- Y7 {' ~
customer
% Y4 E6 o! t8 n0 `' ?! l& ecustomer-no
7 p8 r% I2 [9 K, l7 g* Y0 I; ]/ ztrust-ok$ w0 B) D! Z5 b$ B/ r8 W
trade-record-one-len;;trade-record-one的长度9 E* [- I0 q* L1 `1 _8 k) S
]
: V3 `- I% }: l6 @
3 _' M( Y) i* `, I;;setup procedure, ~6 y, E; S% ]; _) X+ E/ `" d
! ^, W4 }6 [% H3 _to setup; U% j P, _- U H
/ q( h7 N, r& }* q& J
ca
& }; \" \. Q: L9 w, l" O: b% l
h% B; V2 ^: z- Qinitialize-settings; M h, s6 \# W) ?4 H5 Y) {5 L
3 i) Q9 v! I% e; l7 z0 C6 c& y
crt people [setup-turtles]# e, i3 ]' B- G- w4 H
# u. K0 q. t" Y' c6 creset-timer
; T' o n3 l* A$ F
9 ~) g) G5 e7 u8 jpoll-class- s) I% _' @; x2 X- v# G* M3 X8 ~
' B) y2 G, | ~- ?setup-plots
# R/ }# Z5 N5 ?$ M/ G6 N6 Y; n
+ q: [% S0 }% Y/ R/ Vdo-plots0 O9 M. I, d; b( h- I
end* N8 U' m5 ]' W5 p
: K* P; y; b; ^& ato initialize-settings; m2 g+ c0 S" m
: i H: R+ ~) e% E% a7 Eset global-reputation-list []4 `" `0 w5 ?; V* j5 _4 `
6 n5 c# v* k0 U1 z1 X6 i: J0 W7 A
set credibility-list n-values people [0.5]
* ^5 l3 h, b2 C+ Y: R! M5 Z+ n( ]5 P( ?
set honest-service 0
& d m$ O+ }7 c( ]1 ]
: z) n& j/ C1 V/ }* Tset unhonest-service 0
! ]/ R3 S. @- l) n) B7 \2 E$ H [. q& I; g$ _) _( s
set oscillation 0! Z) `/ E b1 o( P+ _2 w8 E+ _' ?) Y
( @5 \ I& m/ d# }& T
set rand-dynamic 07 v0 }: U: p/ O
end1 T/ r. n+ |3 ^5 @4 O
0 T7 i! K% n9 g2 w' F
to setup-turtles
( L \: H9 B% {( T% d$ @7 Sset shape "person"/ @0 _( ~6 K& k, K& V/ Q
setxy random-xcor random-ycor
) o$ f) e0 t6 T8 V$ A3 a% N9 Lset trade-record-one []$ r3 ]/ Q; E, F( b6 g& D- w
+ b$ _3 d& T3 W+ A6 S$ I
set trade-record-all n-values people [(list (? + 1) 0 0)] + M! E N8 O# A
. G, H; R8 \: ?( ?
set trade-record-current []
( {" H4 u, d% n" f( ~" z- S1 kset credibility-receive []
. `; |/ l. x" Vset local-reputation 0.5
3 D: V) s7 P# N8 k# ^0 M7 xset neighbor-total 0, f) a' X' w* K0 r8 u* o7 R
set trade-times-total 0
! ^2 A+ b& K3 u2 J8 B& lset trade-money-total 0
% W, L# M3 L0 t8 u% _, U- f$ Uset customer nobody3 K5 ~; T' |9 I; q7 x/ i' v
set credibility-all n-values people [creat-credibility]
/ C5 T3 Z5 j7 u0 B+ eset credibility n-values people [-1]- k, m% Y8 {7 m* v- r* r/ `% a0 p; e
get-color
- Q0 G# \" p1 |- b% _, t( s2 l8 _
end: B2 S/ v- K5 O# Q! G/ n
' d0 f) e; o! C$ q
to-report creat-credibility9 ~/ l+ P" `% c2 y- l
report n-values people [0.5]
% d" \( o+ A5 F( O( eend6 K8 W+ B* n" X4 m
4 Q4 |" _) s# ^
to setup-plots, ^$ i7 r. L5 e
# D( h6 t7 w* m% E
set xmax 30$ `7 W2 ?: R p5 v R2 n
2 z+ \* `- a' ], E6 g4 K
set ymax 1.0; S! c U, T& s
! M$ ^! h t5 a Y, H v
clear-all-plots
) L4 n4 [+ \8 X; U, V3 g3 D. U3 g7 |1 \8 b( b: B7 ] l
setup-plot17 ?5 B7 ?/ e" m, {1 P
2 K" s1 t6 \0 G9 @$ d! _) f
setup-plot2) C, g* W% \1 i" w+ G
, f0 n0 a: f1 W# t- E! Ysetup-plot3
0 H6 I( \: A& K, u9 tend
- \: q1 ^5 p: b7 b8 g/ M/ q l( C! i+ w. D7 G: \# u
;;run time procedures
# g" C: C1 J& [! \% L- B
; d, G0 \! z2 f) ?to go a& Z( e6 k6 X( b* W$ ]8 W( A2 [
3 V/ C0 I5 E7 _& }& B/ `/ z0 kask turtles [do-business]7 V! e* Z$ w. Z
end( S I. r; `: G' q) @3 P# N
( j5 Z& p) A( cto do-business
/ N7 g+ K1 U/ b9 [ d$ H2 C/ \
( q( S8 @" ]) o/ T# Z6 q5 S6 u0 y1 \: |( f+ b1 h
rt random 360
+ W5 _ l* A( {, r
+ `% L0 J" h! W5 t: k* O1 Mfd 16 M$ \9 ~' o8 d% u/ s
) g. k' M$ t- _) i* V& P
ifelse(other turtles-here != nobody)[4 m* g2 O4 Y: B2 V4 e s( a) e5 C
/ P" v f! o! ^9 hset customer one-of other turtles-here
. K, n/ t. ]3 [7 r' |4 I9 p
; c4 S( N% a9 v9 ?: D9 W; h;; set [customer] of customer myself
( ?: I9 i% ?4 ]" w+ z" P2 J4 _ \ H
( x7 k+ d& z3 H% w5 [( ?6 eset [trade-record-one] of self item (([who] of customer) - 1)1 d& v- F& g: d1 H' q. b+ r! N
[trade-record-all]of self
. l7 a4 |$ o* T3 ?/ D;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
, h8 ^+ f+ d, x8 X/ A4 y/ S. S: [* ]4 f ]6 a; O6 D
set [trade-record-one] of customer item (([who] of self) - 1)- ^. p- u. ]# k4 {% v+ {
[trade-record-all]of customer
2 R! @6 I" z* D- `; l! W" U4 `
) F$ J- L4 l6 Z) K" e; Mset [trade-record-one-len] of self length [trade-record-one] of self' c/ {- K9 M9 ^0 n) Q, `
% F/ P- x: D* D& }; V
set trade-record-current( list (timer) (random money-upper-limit))
8 \( C2 c9 @' a
2 y/ H: n- m9 m7 p" |ask self [do-trust]; G" B4 W# f9 I9 n
;;先求i对j的信任度. b$ J( {& [2 z6 N
2 T/ E* B6 G" L7 {. j7 p3 C" s
if ([trust-ok] of self)6 T6 f K* G/ [% [
;;根据i对j的信任度来决定是否与j进行交易[+ N! ]: a. o i9 q
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
3 I4 _5 J9 P" g. m4 C' m+ k8 ]3 w
[
: Y$ y: ]. D# ?4 U3 X0 `* Q. B( j; J
; \0 T8 Z( R0 b" A6 `/ g' wdo-trade* J6 G; D4 S/ J2 `( }* Q _
+ K: h) ^+ V- u1 o8 N
update-credibility-ijl
0 [) X8 o/ V# | U- ]+ X9 g- D/ F4 G' w' \8 x3 ^+ S* D# e3 W
update-credibility-list
6 U0 a+ [; r& S* P ?( N! Z) R ^) S& M$ n- W4 p( e# ^- \9 B
# U# i F9 L- L- n- A/ P
update-global-reputation-list; S! L% u# C' g
/ z7 @8 o, S# U: Z, z4 X7 Bpoll-class
* b% @, y/ R9 t2 h2 \
- z4 a. l1 ]" K% K& j# vget-color; X* b) S4 U9 E D1 ^7 }# B' @
, p9 s: n# L& x]]/ d8 O* t" d! W
9 v( N3 T- }. y- @0 G$ @& d;;如果所得的信任度满足条件,则进行交易
2 b% q6 j' o1 ~
) i' Y) T9 X( Z' }[; c3 C8 [* {4 v) F6 t
* |# Q" a- I" O8 W9 n# C
rt random 360
7 J$ d5 y* ?) ~* P. g- g2 Z! I2 j: @, R9 x* `
fd 1
* P* w# d5 i0 _# A+ A+ ]) |& Y0 P2 e3 E
]. p: _$ u; T$ d
3 @8 P8 r. K3 f5 Z9 g+ }' x
end
, A0 Q6 l0 ~" p4 b- h* \) A* ?! B; D" ]2 |! f% {
to do-trust
+ }9 P6 H4 b7 eset trust-ok False8 O$ s0 F1 h; Q3 P V
- W2 R0 L; b7 x) _5 w: q- n+ f# A% ~8 X& [* Y1 ^5 I
let max-trade-times 0
# H" `" M! |: y$ x9 _/ ?foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 A' A% ~; t! @let max-trade-money 0) N: g+ ?! T: _* s3 h/ |6 r
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, @' F& ^8 _$ p: b2 \9 w$ Mlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
/ s# k9 ?' d3 Z- d' M+ d, J( o5 j: H) h% B( p* b$ a
0 T& f- n8 ~% V( U p) H: vget-global-proportion
! Y& T) \% v5 {; vlet trust-value* v7 ?( `9 `. x% |) |
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)
( h; J- z$ z1 F9 vif(trust-value > trade-trust-value)# @0 f# h/ U; v. x
[set trust-ok true]) S$ p3 ?5 c! V7 T" V1 M
end/ i) D( k% \- r; w0 V6 }' v
T9 B, F! A; [' A5 p! K/ U
to get-global-proportion4 E# q) y, Z( l) @
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 @. y/ s0 I0 x/ L+ i. w[set global-proportion 0]* ]8 g/ C/ i: U
[let i 0
! \3 E8 R2 L8 S8 |let sum-money 0
) \* }1 n% t- @. h9 C; ]while[ i < people]
" A0 _. g3 o: W4 R/ y& b$ U5 ][0 h0 c4 D- ~; D
if( length (item i! b( t1 m3 K j
[trade-record-all] of customer) > 3 )
7 G3 t u# G$ g. I+ b) v[
; D9 y+ d, X# r- y$ p M6 i8 nset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
+ Z# W: c' Q' H( N! @; M]: W* J2 h8 u4 D
]. c& A% |+ q% \3 f. n4 Q$ ?, R) Z
let j 0
5 ~# _7 \6 g2 r1 Glet note 00 Q! r6 h4 p- T3 k3 K
while[ j < people]
. n; S6 Y" X6 N( P0 R2 H: R- j[
1 j1 _! c, q4 y: Wif( length (item i- j0 B5 ~2 e! [! L4 U- B' _. o$ J
[trade-record-all] of customer) > 3 )/ F9 d9 I# s3 s% g$ K7 @( M
[- e4 \$ J5 O+ N" ~ U3 t
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)% s: B" ^- \; X4 t, K' p4 d1 l7 [$ e
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]% y9 R$ A# R8 v) J+ X [
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]* M$ P) D& Q C J4 e/ m
], D; ^3 [" I$ Y1 |
]! Q& J! [9 G4 s$ w9 Y4 }
set global-proportion note/ M4 K! h6 f6 w* j: ]4 M; [
]
8 [" {9 p* d, k8 Qend9 b- z4 C$ a5 p6 q" d
# x( J8 P x$ d% P0 y( @, Z
to do-trade
0 } b; z+ \7 f& E( D$ y;;这个过程实际上是给双方作出评价的过程
6 v; _4 E/ W9 A' g4 Y8 U" dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
* L: |2 @- k% k4 ?set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价2 y- Z8 E Z& I* W( m! d F
set trade-record-current lput(timer) trade-record-current
5 {) O: H6 F4 e. O;;评价时间6 r/ D' O, {" P/ A. @4 x
ask myself [7 Q$ ^3 x/ l v7 O, D% a
update-local-reputation
) v9 P7 d& [- y( cset trade-record-current lput([local-reputation] of myself) trade-record-current& n& Z& m3 G D- E$ g9 Q+ S
]
+ U" U+ [- \/ sset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# X6 O, y' S; v
;;将此次交易的记录加入到trade-record-one中
; |$ R: Y4 W2 U9 J S6 v8 U$ o# ^set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)( Y& F2 j& D0 I/ l
let note (item 2 trade-record-current )
1 r. l$ a+ X5 q, fset trade-record-current( @% T) D5 d1 y
(replace-item 2 trade-record-current (item 3 trade-record-current))6 s6 p/ a) d5 B. x* _' S5 e2 ]
set trade-record-current' y2 S7 U+ Z0 a( T
(replace-item 3 trade-record-current note)
1 D i/ n. T& k. n7 \4 i2 i) @; H: {2 I+ o: \; ]. R) L( {8 L9 _
% i2 P' i0 ~# V; B3 f* z
ask customer [
" b: c8 F" I7 W3 i" c1 supdate-local-reputation: F8 }0 \9 D9 N, W: x9 Y
set trade-record-current0 p, m3 ]+ `$ k; g P1 R
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
! z0 D% P( i1 Q% T/ H4 L]
7 I! d3 L& q9 U% E) C5 @/ k5 O
: \4 W# C7 b! D1 }
: ~8 _1 s7 ?/ s; B- ]set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
( a& O- Y+ ~, ^
* H k. n* ^- Jset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
. h* p3 w9 w9 |4 T. t o8 a+ S;;将此次交易的记录加入到customer的trade-record-all中# u5 q# z" g, J6 J7 h F
end% {' K! x! v, ]- q; I. s: m
) |; m' i( D: d# I# ]' m0 t% }+ }to update-local-reputation+ E4 d& N, m5 n) l
set [trade-record-one-len] of myself length [trade-record-one] of myself& G: c! }& l& s# X
. D1 ?! A& m+ R
4 z K$ I+ O* v/ ]; {# _+ A, D;;if [trade-record-one-len] of myself > 3 2 [+ T0 |$ _4 K: U: I! W/ P6 n
update-neighbor-total
$ W" W9 F" R3 t, ?# M;;更新邻居节点的数目,在此进行
7 x; l: }# C& {9 Slet i 3
: t+ z, x5 y7 t9 q7 h; rlet sum-time 03 O; i5 z. G0 h8 Z) `9 c% _0 E
while[i < [trade-record-one-len] of myself]
9 H1 h: j; i' [: T" `8 b( U[
/ d8 c$ p. H+ H- { uset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
4 J; V& y2 u w. Y, l8 Oset i
! U6 Q: H7 a1 H( i + 1)* N+ d. [0 w I% v# i; Z% @
]
/ i# e/ ~/ i; @) @let j 3
4 L% r. `/ v9 _6 A# @( W+ [let sum-money 0
0 S# J' J+ w- g' h- V8 `+ n, Pwhile[j < [trade-record-one-len] of myself]( m8 E8 C1 ?/ N# r/ {
[. U" x$ F- _3 r6 L3 X& o( F, ]
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)' H( b8 I% F# N+ w, G3 z
set j
4 Z; G- {# |7 O* a( j + 1)9 @7 t7 p3 C4 n% d5 m( r8 D% j
]
' W2 P) \! R; J! s. o& G& c; w8 Glet k 3
: {8 I/ t* H2 q0 Q5 K5 P- _let power 0% @# H% B- s; U6 K$ N
let local 0
6 S ^2 ?4 G4 Rwhile [k <[trade-record-one-len] of myself]
; h8 k2 |0 O% _, o[
7 J1 S" B. | b( M$ z: x2 s ~9 {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) : k4 Q7 p/ v% \! `1 x* Y2 ]- u t
set k (k + 1): y9 L8 w2 h+ s1 s: v) Q
]
5 T% E% @! t: V# s6 [% f, {set [local-reputation] of myself (local)
3 ^4 c. z' ~, W- _0 S3 e. r" Jend
2 b6 f/ \5 {" i) `6 q4 ~( B: K4 {+ G% W1 Y. O
to update-neighbor-total
1 [4 U% g: ^9 c% }+ F% [" k5 D# f9 x& a+ g6 d
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]) B. n* O+ q: F) ~/ g
- d% [. m+ g% {/ p8 C0 Q6 y- ]; r
( g4 T$ w) `7 g. D }
end; B' }: Z8 U% w
8 U, P! }9 C" P4 B
to update-credibility-ijl
5 ~- x W; R8 z. q, [0 P! ~5 s# s1 X: S) o: U
;;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。( F6 C" g* D+ h- p4 d, d3 t
let l 02 k" X0 P U z g# P7 F
while[ l < people ]
5 {; N. D6 o$ }1 z;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% F+ B1 w, x' w0 u2 ~if (trade-record-one-j-l-len > 3)
3 l/ o& v- c9 Q8 }4 P$ z; ?[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& }+ D4 U; \1 S7 A
let i 3/ z6 f% d' t) s6 l
let sum-time 0 T4 ~* D2 Z2 T% Y4 `. A
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ p6 q4 L; e/ b7 k" Cset i0 r3 V, n3 r. c
( i + 1)
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let credibility-i-j-l 03 {& A4 W3 R7 e: [$ Q% z
;;i评价(j对jl的评价)
- R4 b9 {( Z7 O& plet j 3- V/ h/ c* r$ d! Y, m
let k 4+ i2 P' d; R& g; {3 a, x5 }
while[j < trade-record-one-len]( W2 h ~2 t1 t7 s" a/ W6 \
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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
7 N( a) D5 h0 c) a4 F8 W1 n. j6 hset 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), y- \! N' b8 t2 c
set j2 z4 J3 I. R& C( B
( j + 1)
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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 ))% ^% B% G, O' [/ a! p
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 p, _3 B. O( R# S" N;;及时更新i对l的评价质量的评价
1 }$ y, s. v' L( P# y6 ]set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
& }1 L2 {, h+ H5 m. m7 I3 c3 ]' Tset l (l + 1)3 Q9 Z6 B& ]0 D4 D# e1 T
]! d" S! g3 X9 o" {; p) h; A, U3 Z
end; h, O! c) N9 `4 }2 a7 x9 v
! j$ N0 W3 X! u" B+ nto update-credibility-list/ \( B j4 {. f. j& y% T1 p* {
let i 0* _* C2 U! \; b* z9 i
while[i < people]
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let j 0; K8 A2 V0 E& ~; G. D3 e% _# v' ?
let note 0
3 N' b" W) g. w( _let k 0# Q' d( D0 W1 n7 C
;;计作出过评价的邻居节点的数目
- L( {0 Z2 y: x9 {5 W4 H5 \8 l+ bwhile[j < people]
0 S) v; w# y+ B/ A[
_7 K9 k$ ^ _5 w+ ]8 Lif (item j( [credibility] of turtle (i + 1)) != -1)9 D2 d8 `, _& P' S' N
;;判断是否给本turtle的评价质量做出过评价的节点8 y: I8 w( E- M) [" R3 f
[set note (note + item j ([credibility]of turtle (i + 1)))
$ g+ n; R5 I. K% p6 Y+ N9 K;;*(exp (-(people - 2)))/(people - 2))]0 k, F' }1 Y& Q" }# ]1 j0 B
set k (k + 1)
8 x3 K' A/ H( w O% ^], ]: k- o+ F; x0 R) e5 K7 u
set j (j + 1)6 j" ]6 Y' b# P1 b5 {
]
- }* Y# n# ~& aset note (note *(exp (- (1 / k)))/ k)2 l/ g9 @3 m( E& V* ~3 M6 Q a
set credibility-list (replace-item i credibility-list note)
5 @" ]4 p0 |* u4 b0 sset i (i + 1)
[& A$ x+ V# Y7 @1 f]
" W& }* c8 E$ Eend
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0 [, t% g% }* X; T( `3 zto update-global-reputation-list
& L( V7 X t' l; }, ?0 [let j 0
2 V" F0 S: p! v# j) Fwhile[j < people]) U) X. s3 D/ p- O* ^5 Q& }
[3 z: a8 L( a' V" Y! k( `3 J" D6 t
let new 0
- g' l& L3 L0 G3 _; R1 q$ g/ Z;;暂存新的一个全局声誉+ m, i7 f$ }. h( U
let i 0
" f" J( d& x$ {; x, P# F, J2 Ilet sum-money 0
+ E; m; E- G: ~) E! i1 o# w: m. glet credibility-money 0
" g" _1 r4 |; I3 f3 N% i0 } uwhile [i < people]& a% j- U. M ?2 P2 t
[% l# R5 E6 C! B9 v1 Y. _% ^
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))+ y4 P H8 F0 X% y, W
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
' H3 k( R0 _/ _( s0 W* m9 o e" l5 U1 Wset i (i + 1)% g* D1 m. ^0 J% V( }7 A6 b! w
]
1 Z4 V, u2 Z/ u7 C5 w. Flet k 0# M8 a3 | Q3 [7 z
let new1 09 |; L) h! T9 g! W1 H
while [k < people]! g+ W9 J [5 {& W
[
" o8 s r- K$ P9 Iset 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)
: R* O5 M+ T! I# J2 o6 e# I6 ^% x: bset k (k + 1)
; ~# k! h7 z7 r: l4 Q! w2 k; @]
, e5 b3 X4 e( S# [; u. \set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 1 Y8 s3 n1 X- N! [. O# a% A
set global-reputation-list (replace-item j global-reputation-list new)7 Q3 s' T6 j# s
set j (j + 1)8 p0 T4 L ]$ W) R, K
]
& L. `! K& H D' a1 w5 E/ n' L3 Hend
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$ X( M5 W. G& o. rto get-color" C/ s }, ]0 y0 ~+ w M
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set color blue. ^7 }- d0 S5 `
end
1 }+ o3 t* v% S$ S9 C# I& ?7 `4 C
to poll-class
9 o) b% f3 q2 @- n' Yend* {5 E9 a8 @+ T. B5 ]
+ l, N, L* b& m' C% ` [* e- c1 W5 Uto setup-plot13 E7 c2 U8 C$ x. a! w- p
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set-current-plot "Trends-of-Local-reputation" o2 X5 l) ]# J
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set-plot-x-range 0 xmax+ d# B9 l D6 ?$ F
7 j& M& d; A$ Dset-plot-y-range 0.0 ymax
+ t2 a2 n! i- u Oend' p. y( [) a& T& N# L- v* b
/ v! E2 L! P/ f$ h% P9 uto setup-plot2
) ^ ~3 D) u" a; F+ k5 V% q* @7 ]: R M6 P
set-current-plot "Trends-of-global-reputation"
n7 X/ x# |2 ?' `0 S+ O% s3 V- T. W; O# p
set-plot-x-range 0 xmax
- a2 {" @ U. j U
1 @* u9 e$ y0 ~; U* U C M1 d B8 Cset-plot-y-range 0.0 ymax
. j2 u% o) A7 \$ Tend Q# N+ d; l- W6 P/ ?
5 Z3 B4 Y6 s+ u- xto setup-plot3+ a+ W/ f8 [ x
n2 Q! D& p& y4 O1 E, V$ c
set-current-plot "Trends-of-credibility"1 `* t0 H3 | K% H6 Y1 x
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set-plot-x-range 0 xmax/ d& s$ _4 S9 p9 R
$ q, z4 C& o- F% U, jset-plot-y-range 0.0 ymax% j& F0 k5 S4 Z' g- K6 B8 T- K
end4 v+ G, x- c6 u! f
, h) m* G. y7 Q! eto do-plots1 T) ? E7 [7 f3 z9 E
set-current-plot "Trends-of-Local-reputation"
# c& F- W1 r2 I7 |set-current-plot-pen "Honest service"
$ F1 X- v8 i- k& ]& A6 Y9 ]0 bend6 }' D6 x: Z" e
0 z1 w; Z2 G. r6 |4 Z, h6 Y[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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