|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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 H; }- z' _; bglobals[
$ B9 q4 E- x' y: ~9 d) vxmax* m8 [& a" |. V. U( M6 m$ [. |" D
ymax
9 n& Y0 C- e( [& D! Dglobal-reputation-list
3 O: H4 ?0 r4 k+ z& i) n) ]3 c6 j
- F. `/ p9 j+ S;;每一个turtle的全局声誉都存在此LIST中6 a, f/ `. @' Z0 w9 ?9 |+ N1 G
credibility-list
& H0 a: R. c* {. W! P H;;每一个turtle的评价可信度
8 I4 U. R3 q$ Q# z2 p1 Q: jhonest-service; A8 G# s' n5 O" [' w; \
unhonest-service! W+ Z7 a7 J' X5 C3 v7 V
oscillation2 u. I$ i4 H+ L! b5 G
rand-dynamic
@" U& c5 g& r. B! c. C]
9 w! P/ U q% B; l% J* c" e* q2 v, J' h7 S7 ]
turtles-own[# C s: ^7 o% e2 x" k( \6 X9 m
trade-record-all4 x* F/ A. ?7 K7 H
;;a list of lists,由trade-record-one组成
5 U6 y* M# Q' o8 A, htrade-record-one) k% g3 V3 v) H+ t7 [9 T) \
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录# N' D5 u# K- X1 p- f- g K
( X5 \! p! d: C( b9 ^/ R
;;[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]]
+ X% X; q5 N. p0 U- i9 Etrade-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]; Q2 z& B; X1 E/ ~# s8 K* P
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
0 |. I5 x' t3 u* Z5 nneighbor-total
% ?2 U$ V) U, U5 a$ t3 Y;;记录该turtle的邻居节点的数目7 r8 d5 T: Q$ B! Y) w
trade-time/ E6 {$ [; w9 @& s" }9 j5 o
;;当前发生交易的turtle的交易时间" q7 v( k; w" u' V& f' _
appraise-give* j) B, R; ]' H4 W* k5 W
;;当前发生交易时给出的评价+ T( h, p& ? H! ^9 D
appraise-receive
3 i: H& t/ q: I/ p" [;;当前发生交易时收到的评价
g$ `. z0 ~1 m6 p# M. v, ^5 Z7 ?appraise-time
7 D$ h( _# C: \) j: { A1 S;;当前发生交易时的评价时间# s( W; n; } x9 a5 s
local-reputation-now;;此次交易后相对于对方turtle的局部声誉7 H. o7 M) v3 S+ k6 H* U
trade-times-total9 [# c% f- u& a
;;与当前turtle的交易总次数
7 ^ a) q3 B% ^9 B# y/ A% `( {7 Utrade-money-total
+ F; L$ X1 X: b/ S- i;;与当前turtle的交易总金额
0 l' r( ?* R+ b# N# \& @9 {' ?local-reputation8 d7 a9 d5 x [
global-reputation0 {8 _2 j7 b, ~9 O: N
credibility
w z: S' L5 u;;评价可信度,每次交易后都需要更新$ l% j, j: K7 |8 @9 t
credibility-all
% ~ D0 m3 V+ J8 f;;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
. ~' g! l! `4 l, t# M: `
' k8 q8 ^/ E* Y* J) F3 F;;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
8 i- f$ n; @. H' u6 c2 {credibility-one1 D( z* q! Z9 e- i& h7 M0 R
;;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 k9 w$ N+ `9 S' y, q# }: K* F
global-proportion
" i' r4 X6 f5 i F7 T& Kcustomer
5 Q6 l; \' q) w; C3 C5 Ecustomer-no
/ o9 r) `+ h3 y8 n! y- w/ Wtrust-ok" K1 y$ b: d& h: F" J1 `
trade-record-one-len;;trade-record-one的长度
3 z* i4 j% O- l4 | n8 ]! ]]3 S/ Q. V4 X! N5 b/ G, d, e
6 Q. M6 Z0 b' J( s& ~2 J8 B
;;setup procedure6 M6 d: y# P: l X0 Q/ r: j i9 d
, m3 l% j" u: d- i7 }; @0 nto setup
& U/ h; T; s3 d% \
9 ^" |2 G9 P v3 P/ ~* Wca. S I/ J* r- K
" ~1 ? d3 i& j) t8 B, x
initialize-settings+ L" [7 q4 ]( d$ x! _2 |+ G
% Q* v5 D X6 `2 ccrt people [setup-turtles]
- P8 O* r4 t. J5 w' {' P) Y6 U* A9 ~& M& H0 S4 [/ }
reset-timer" v9 X2 M# X' l4 |
% N7 }6 P+ R: n0 Y- apoll-class6 l3 u) q$ y1 m: e9 v8 }3 r$ h* }
. N- @6 ~, g) X: x q( D Hsetup-plots( e' }9 M) ~4 j
# }# H6 b9 S1 _. o4 Z2 _: g# r! }$ Kdo-plots
" l) D; s6 c4 `0 l* hend0 t) x. b# z# j2 i3 p. d# l
& u3 z; H$ x0 i4 t" _to initialize-settings
5 U& a' _# f- n) K
7 J3 [; e7 c( q1 o2 Eset global-reputation-list []$ Z0 [8 c4 ^8 D
' A0 N( x3 d8 ]set credibility-list n-values people [0.5]+ P5 d0 F( q. c) r4 }, r' D J+ |
, o5 }1 R( P6 P4 ]1 b }! z& Hset honest-service 0
& }( s0 u% N/ Z v( F7 O$ o# \& W3 c- [$ E& b+ [1 F4 G4 F
set unhonest-service 0! }( P2 q- N, c# r+ @# p
" N$ t T. W) j6 g4 K/ J, {6 a" Yset oscillation 0
4 y; f9 \7 N8 D3 w
8 p5 ` _: @. E$ _4 T) `set rand-dynamic 0/ q/ [- K) h' v8 ]4 A/ t/ v: ?
end
, I8 K, |; T& n) ?# Y% W
/ C& g7 ^7 D2 j; Y# eto setup-turtles
1 o3 `. V( K& B0 Y% @2 ^4 j6 l$ Fset shape "person"
9 _; I: O+ v K% e2 |) u7 m) o) jsetxy random-xcor random-ycor2 D: [+ R8 R+ G1 |/ Y# W: l, W3 I
set trade-record-one []+ B8 r8 X0 s) x4 o y
8 g) o" l0 P x& `- k" w3 l+ o/ Y: M
set trade-record-all n-values people [(list (? + 1) 0 0)] 5 n; e& T, B4 x+ Z
6 A& J6 E6 F$ H. T* H6 j, C# qset trade-record-current []8 c, q! H3 V1 L- ]
set credibility-receive []
. `2 {, a; J B/ R: f$ S: _/ ]set local-reputation 0.5
2 C4 _9 [. g) ?7 T( Y5 ?; V. Q& Zset neighbor-total 0
1 \7 L% K1 k: Y) y# Hset trade-times-total 0! N1 d$ A% I( E; U7 _, I5 Y2 Q6 R: i2 @
set trade-money-total 0
" D8 p9 \; a' R: o2 hset customer nobody2 p* B6 y* h2 B a3 W
set credibility-all n-values people [creat-credibility]
2 _/ ]4 K' a6 H6 ~# dset credibility n-values people [-1] c! M) I! P- ?) d! x: |. w
get-color
, L- h7 Y" `3 f7 J8 q& q) Y4 |9 i$ R/ j) p: N( H
end
8 r$ Q4 H& F9 E6 d! y8 f9 ?6 l' ^6 Z5 A' W( B
to-report creat-credibility8 [" M; L: I) l2 ~
report n-values people [0.5]1 [1 \2 U8 D5 ~; s' U E
end
1 w6 _3 E/ C0 C6 a8 _ M+ o; y, ` P7 {+ w' r8 F
to setup-plots
4 y3 |7 P( F1 ^' x9 l5 _% Q) Z7 c6 e% V' X& e9 X/ H
set xmax 30
1 [1 ]% f3 _3 m* a) ~3 ?" L* c% q; q
set ymax 1.0
6 ]. Q) L9 W. k6 V* C- _/ z
$ S3 Y$ F0 @& o7 t" h/ \* Z+ C) Gclear-all-plots$ R- W& S$ ?3 B% E3 x4 i
0 W h7 R1 s2 x3 Hsetup-plot15 p" k+ l6 v: R8 q" p
) a2 U/ [$ m5 X. h2 O, Z$ |
setup-plot2/ p) ^' f7 ?$ F% U, x
, {8 E+ Z! x2 v0 b) P9 v
setup-plot3, ~& L5 m6 ^) B8 ^
end u/ z. e' F( e+ r
' [+ t. ~# p% H: D% M: r+ P
;;run time procedures/ b" ~4 Y2 ~3 D; H
* p5 w* p& F0 e5 n$ sto go
' N; n1 b+ O# j- e. U; I i& J7 b
ask turtles [do-business]' h& y! z. T) Z) P7 s, @
end
5 C/ K2 H/ c1 _& `: S/ r/ p+ ~) O6 @' C7 Q$ E% x0 C1 Q ?& u
to do-business + c0 `+ G. o5 B8 M8 ~: e: l
% {0 J$ ~' k& v" j) k3 X
$ p1 c% z4 T, C/ [rt random 360/ G. I( f" H0 w# g
5 L& Y* ^: C; u$ p- Q
fd 1
/ [% E+ \# K( T ?- f
f w9 m1 Q0 U" B. [ifelse(other turtles-here != nobody)[
% z" H* @/ f$ B9 w( u1 ]
% h u# s+ T& c+ O, ~+ ]set customer one-of other turtles-here
' d- E3 T+ p9 i9 R. }& A$ c
, `! u8 z3 U8 D/ a;; set [customer] of customer myself
+ d4 S( t* D- S- }) u6 P6 E
( Y' D3 m5 m4 {1 B+ kset [trade-record-one] of self item (([who] of customer) - 1)
& v, u7 x8 Q% r a4 x[trade-record-all]of self. D* T X! N! F" g+ l3 W
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
0 d# B4 }5 V8 O, C% f
3 M8 ^& c j5 s' _set [trade-record-one] of customer item (([who] of self) - 1)
# u* n* y7 X% H% j+ P[trade-record-all]of customer
}- F( i9 a$ P) ^9 D' P* U8 J7 {& w$ }9 s, O! I
set [trade-record-one-len] of self length [trade-record-one] of self2 s: c3 Z& s* p# N1 e9 o7 e S" v
: S3 ~8 y# X& }: N( D; h* B
set trade-record-current( list (timer) (random money-upper-limit))7 [# o9 Z c1 d" v6 [# `' t0 K
$ i" N7 b. m; Z9 \& _) ~ask self [do-trust]8 g6 x/ M- |& ~
;;先求i对j的信任度
" x5 L9 d( v- E m3 o" V" |+ M# O- A9 H4 R
if ([trust-ok] of self). t( A4 k% `. J s) Q
;;根据i对j的信任度来决定是否与j进行交易[1 F; d4 L* Z4 D0 k5 E( |! O
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
% c+ K1 ?# g" \. g8 {% P4 ^$ {4 w( `: R8 c9 R' Q6 `, p+ J
[- I3 Q) q: {! h G/ |/ k4 t1 O/ e
) e/ d e. I3 y4 Y0 }1 N( y$ X
do-trade
: o8 b* y8 D# }# ^# f; y0 t( m% i1 ~
update-credibility-ijl
3 p+ P2 b5 B+ G
0 u2 M/ I6 L: ]3 u3 g' o( E4 \( v8 H3 zupdate-credibility-list8 a$ C/ B+ X0 I) ?2 u5 Y
, e- p" z! n9 P k
9 A3 D A' k" C) M; D' ~7 \update-global-reputation-list! Z& U5 @! x; Z" @
/ s; G% Z& O E6 U6 g( m" l
poll-class
% y" Z. @. N! _. K
B% D/ @2 ^. r4 }9 Jget-color D/ [3 Y% l2 l/ m a% i
% r+ g! o3 a1 L* t2 x' _7 I6 I# c
]]
4 Q' D" |0 y1 D# [* x D( r* I
3 D- d/ y( |4 W" W7 y/ I& L;;如果所得的信任度满足条件,则进行交易
' t/ @' \( q, v( _3 p1 C$ B" z% F S Q
[
# O2 Y; E2 ^ g. x5 @6 I* i4 k" ]+ W% c3 [- M* I2 T: A# ^6 N
rt random 3604 s5 D& {' \9 i3 K& P* a0 s. X
% O* U, M0 S) m: p" b% p# Ufd 1% X, k! s( _2 C. A- U6 S5 x% @
: F$ Q$ j0 }7 @5 A* q; C$ b- d8 W* W
]+ ?% r" i1 O2 L2 G
9 J$ k% G+ X* t% Z' C4 eend
; u" F7 B3 z, H0 }9 g9 {$ Z6 U; J) J( d. I" O+ Q
to do-trust
3 o% K0 j& x7 p6 cset trust-ok False
0 X8 w2 {+ ~) N3 C }
# Z3 D/ W" ^# S
) v9 W1 ]" i# C* dlet max-trade-times 0, v, L8 T6 {( w
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
( Q2 O2 X3 X4 ~" glet max-trade-money 0
6 [/ B- Y% t4 r" R# qforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]- V: Q/ a1 Y, H a7 O V9 }
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
7 g& e3 t5 x4 C0 e) _* L2 s; @5 u- D ^
9 o1 c( q6 D0 p! j" B# vget-global-proportion& e0 @; x4 ?( b
let trust-value
1 d+ E9 D& J; ulocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)1 Q8 W1 ^- E- @2 n2 |- A% B
if(trust-value > trade-trust-value)2 Y7 A6 X- g; W( {
[set trust-ok true] u! H0 E' s' E& Q, k! b: H% v0 J! q
end
/ M$ [- ^& t1 s- o6 Z3 l) s1 t
) _) D2 C. h5 A' r+ Uto get-global-proportion
" n1 c. Q1 d- J! uifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
h5 q* L) \8 G. U |- {- B[set global-proportion 0]- @/ K7 W; G* J1 W4 Q# N* O3 L
[let i 0
' m/ m9 m8 ~) W" M! n+ D6 T/ ~; alet sum-money 04 P$ m$ G. L+ f" z% F
while[ i < people]
% ~& R# m) a8 C& ^% ]) X[
6 b) Q3 I+ y' ?4 @! Qif( length (item i
' F2 D3 I! D$ |( P1 J" g[trade-record-all] of customer) > 3 )1 E5 n7 e8 F$ ?" @8 A* _1 W
[
' b; d3 V9 k% q* N" H1 oset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
+ j2 \9 R+ G% C: l0 Y]7 Q$ r# N1 d. V% D! O6 Q/ Z
]( c, y! I9 ?7 X3 }9 z* w' ]) q- b( V
let j 09 X7 i+ u( I3 i- t
let note 0
4 _ u; H4 e& I) |1 E. L0 M, u$ y' v5 ]while[ j < people]6 z1 _6 u# i! @$ X: D9 C
[
8 k2 R3 H! F1 T6 o e% N1 Gif( length (item i
7 X- K$ b/ u* y' ] o: J* `9 p[trade-record-all] of customer) > 3 ) h! }) ]# B. P3 n& ~! k7 V" }
[
) P' W! }4 b/ g/ M8 |8 o3 r0 c! S: o, q/ |ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)' |; t+ M" S/ V$ i6 K1 L& c, {
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 P9 @' O& o+ `* G& ?& O: Y8 @
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]9 A3 V# V7 n& N0 S0 Y7 I: C
]$ C+ `6 G& N' P h8 S) B7 ^8 z6 Z# h& z" d
]& I0 R* K+ ?* b
set global-proportion note! l' @4 ]# O3 U% z) c
]
# H- E& X; F; L# A7 M ~9 l4 B" V/ Rend, u% w, n) |' [
" J/ [6 X" Y5 D6 ^: ?" m
to do-trade
$ @$ g7 k F; V. m7 X" v;;这个过程实际上是给双方作出评价的过程
1 Y2 X* W8 O- J6 @; xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
- C5 Y) p3 r# T9 sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
4 [; Q& ~6 c8 C9 ]; p' Q+ Dset trade-record-current lput(timer) trade-record-current" g0 o% T1 b+ I, f' K, O/ U, D
;;评价时间
8 D/ {# s9 _4 J4 H) c6 n0 { Q# }ask myself [* r+ t0 B/ J& L% U# n
update-local-reputation& V. w: h3 p. G- ~
set trade-record-current lput([local-reputation] of myself) trade-record-current
8 I* ^1 j/ W: Y2 w3 C]
" \' ^7 R) u5 r5 L$ Eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
l! ?" D3 b$ |- s3 Z' T. t;;将此次交易的记录加入到trade-record-one中
2 W$ t" w6 Q4 i7 qset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
1 r3 l3 p& ~% c* _$ Z* b" Alet note (item 2 trade-record-current )
- E3 `. a9 I6 Eset trade-record-current. n2 \2 U4 l1 z; K$ c1 |
(replace-item 2 trade-record-current (item 3 trade-record-current)) o5 s7 u. l, c- I0 y" E* l7 j
set trade-record-current. ?& p: n' o& R& \/ I Y% b+ w
(replace-item 3 trade-record-current note)4 I8 p( _% B' G: @" j
! S( \7 \; z6 N9 \) `- L8 |- h2 x$ J, [
ask customer [! F6 p1 X6 a% V% y' @9 Q
update-local-reputation
9 H8 [9 x$ b" Wset trade-record-current
y ~7 {6 f: z& H3 i- d( R0 y(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) % j9 a V7 W' u! `& r2 O
]
/ p' H6 m. g* @% ]0 d( ] P
5 m" Q, ~2 F6 m, i3 V0 K- U3 h3 q0 G: o2 U
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
4 H4 u6 E4 P. h
" m6 b( q- V* ]; hset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
# a& r" F+ w, W$ r) Q$ s' I;;将此次交易的记录加入到customer的trade-record-all中
' M- o/ u1 B! f/ y3 _end( N. d# g) @+ w$ O
% g3 Z1 F" A! `+ U: c8 l4 gto update-local-reputation
/ [1 C; \1 h1 d/ l9 vset [trade-record-one-len] of myself length [trade-record-one] of myself
5 Y: B1 Y/ @9 K4 X
$ H' h$ F9 j: q3 e
( G( ^' n$ M- q P;;if [trade-record-one-len] of myself > 3
$ H3 D5 T, h$ l. g" pupdate-neighbor-total. ?5 K' g/ u4 T6 Y" u
;;更新邻居节点的数目,在此进行% G6 U4 ?; l' [7 N
let i 3
8 Y: `9 \) z( d$ E$ Zlet sum-time 0: b5 h/ u2 c# m: a9 v3 e2 j, i
while[i < [trade-record-one-len] of myself]
2 y0 u0 c! Z/ P* d: C- j5 S[
- I6 Q" j3 G* E( y, z" ~# q" C) G! Zset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
: n0 F0 g* p. W6 Aset i3 _# ^7 B" u; ~( n8 `
( i + 1)
2 h8 x4 m$ k2 ?1 i]/ ]6 a7 `& X6 Z9 ^; q9 f
let j 3! u% ~. B- f) `& D0 @/ @
let sum-money 0. H) H C9 m) L$ _( d
while[j < [trade-record-one-len] of myself]6 h% w# M0 v* ^* G9 V5 a
[
: C/ K8 B9 P; C2 i3 I- p4 Z0 mset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)& m- x' u( ~, @- c
set j
! n7 ^) Q0 U) t# |5 S& Y# s( j + 1)
3 Q* U; j* B5 x/ o6 x8 C' a]0 J9 M7 @6 Y5 k6 \3 ~
let k 3
! u" @2 a& D ]4 q" H7 Olet power 09 b1 v, Z8 B, ?( R+ U, c6 j
let local 0& m2 o* i* C8 M7 d) s& B
while [k <[trade-record-one-len] of myself]
6 T, ^( `( t/ z# M( y[; ~$ {* o: r% ^7 G" r: H; H i. S
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)
+ c* v& ^1 w9 K4 k0 oset k (k + 1)
( {$ j5 E$ i0 [4 R]
+ ^/ b, d4 R! ^! Y; D( oset [local-reputation] of myself (local)0 T5 o7 Q8 k. _) |* C% }
end
3 \) m: P6 u3 ?" I# H
0 B0 t Q7 M/ N/ Y gto update-neighbor-total
1 D9 g1 ?8 R# `9 G: g1 y, c$ Y" b9 d2 m# S: ^
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ], s; \, s( R2 n Z6 x1 Z
# y9 W K) ^8 ^/ A1 F4 K5 N' z
' g2 p6 `! y8 [/ ?/ vend5 K2 c& O$ ?( J) o
) H# C7 Y+ w5 S" d+ a
to update-credibility-ijl # G9 }6 I& i/ J* b1 e
9 l( S1 } y! }. {;;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。
+ [( m1 e" ^5 N. Blet l 0
8 w( }1 J( Z* P# j/ ywhile[ l < people ]
% J/ B, l0 h- j+ N;;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
# t6 |6 _0 M/ j/ U0 N* T5 r; P[5 d- k l' u0 H- r6 y
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
4 U4 ]3 Z1 c( C' |* Qif (trade-record-one-j-l-len > 3), t$ O0 D: L, 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
" l. p( [+ {; {: zlet i 3$ \* l5 @1 ^& p H# W7 }# j+ O
let sum-time 0% L! Q5 D1 f' k- k
while[i < trade-record-one-len]
. ?" z0 x4 F3 ^[
1 n. p$ ?; ]; F" E) D: h% iset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
: B' x! Y. @+ D8 gset i
8 Y3 h5 G8 C3 J* z# v( i + 1)
# m) P- O& \3 I+ h s]
) O0 S; {. _2 b3 g2 S6 n/ d0 ylet credibility-i-j-l 03 [5 G4 V" b, ~+ i
;;i评价(j对jl的评价)
( H/ a2 E& x4 [ x- Alet j 3
/ y Y5 ]0 p) }" v7 Nlet k 4
, }; n; o- w! ~! _while[j < trade-record-one-len]7 G2 ?& \4 x; P* G4 v) m
[
" j U5 ~4 T5 N, M# d2 {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
4 d% E0 R3 @% jset 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)
! Z5 B/ p0 p( k+ m# N. Rset j
2 Q9 |$ E6 `; O& ~! G( j + 1)) Y# R# P) r* i# E+ X. C
]6 t" G, H. }8 P0 _- J: w* } |
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 ))0 x9 a5 G1 |$ K* K
. K0 Q, n6 a9 e) J& ~# S/ t9 F- r2 m- B$ H7 |5 k) P: F9 b
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
6 z' y) |1 ^1 h( k( x$ T" G9 f2 ~;;及时更新i对l的评价质量的评价
+ e, x! ?3 ~6 s# vset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]1 x- l9 f6 ]! F( {' M; k8 H
set l (l + 1)' p7 h( i/ ?. Y$ E6 s5 t
]
* \( Y% Y' g [end
5 G8 W4 r" [8 {9 b( U$ U: ]
7 Y% O x8 k6 s6 r" b3 @to update-credibility-list
' T' v+ I: g* A5 V& ~let i 0
1 g2 F8 {1 V, u- k3 Ewhile[i < people]) b" @8 w1 ?6 e+ T3 @8 D) H7 p+ L
[! V5 ~3 w8 b0 w- m2 B. n P
let j 01 n" {) G# ^7 b7 a( `' Q
let note 0
* N# X, u; v$ T5 Flet k 06 X9 y' h. B \ r, g
;;计作出过评价的邻居节点的数目" v0 p1 ^& r& ]0 i" h3 z0 x
while[j < people]
- x. j0 f \, n/ m- _ e[
2 t6 p0 ?5 T3 }: eif (item j( [credibility] of turtle (i + 1)) != -1)
/ Z9 ?5 m1 c6 Y8 f, a- f2 B6 s;;判断是否给本turtle的评价质量做出过评价的节点; E6 }- O; b% u* X+ g! I
[set note (note + item j ([credibility]of turtle (i + 1)))
0 M+ q2 s4 ?' \6 H- |( Q;;*(exp (-(people - 2)))/(people - 2))]. ~ O% V* P m3 V5 I" j0 G
set k (k + 1)
8 \8 \: n- @5 E) b9 D5 X]
4 |- O4 P/ V# b! z8 fset j (j + 1)
, l* \. U$ Z; B]
9 n% ~9 W, s* f8 r C# }set note (note *(exp (- (1 / k)))/ k)6 @) e7 c$ c) t9 ]% @2 ]
set credibility-list (replace-item i credibility-list note)
9 S& w7 U `& n6 e9 yset i (i + 1)* @9 U$ _" e& z3 H- c
]
% R% C/ I% ^7 G6 h3 r! {/ t Hend
1 t) u( o% ]" ~) C2 A* n
8 x: e0 D1 H* f3 _) `" w5 d |% Dto update-global-reputation-list. y9 H" T/ l. d5 ^7 [
let j 0 G1 N y5 b4 ]) h8 K/ y
while[j < people]
) L8 l: H1 B0 V. L+ R' z[8 u9 d# D( d5 e* W% P1 |; E
let new 0
; z+ ~+ Y* G5 E- B! i. [;;暂存新的一个全局声誉, q4 S% ^0 U; }9 g
let i 0
; J) P" _8 d& c, y2 F6 {let sum-money 0
4 ^- Y# z) g y" g% d* \) Ilet credibility-money 0
; t. D% h% B( D+ G5 U$ H$ T4 J. ?/ cwhile [i < people]
4 i9 q$ R" m. _4 `& `9 a: u6 S, F[
0 t' B& f' K6 F3 k/ o4 t- E8 |set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: S$ V1 L5 v* u2 i$ Qset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
2 ~- L1 v9 ^* I8 J4 m; Rset i (i + 1)8 R7 z; w$ S& k" ]: s9 n+ W3 g6 M
]: X9 u) s k% C* ^
let k 0
( o: G- e( K4 f5 tlet new1 0
+ U1 o9 D$ R/ O9 h7 b0 I0 H! Mwhile [k < people]/ A% o y t9 j5 m; z/ l1 N
[! u. U' Y7 R. _
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)) O3 A! K N) g) \
set k (k + 1)' g7 ~; ~$ B6 X- A; T
]
$ X/ j; s- m" P! x" Tset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
6 o! R0 O; U( W- V' Z: h+ `# l/ Tset global-reputation-list (replace-item j global-reputation-list new)0 y0 f9 C# @8 _8 }4 I
set j (j + 1)- z9 ^) L$ g h6 u% E
]
{; m0 h2 z0 l# t u! i+ Gend6 t" G' G- K. V
) n1 H% b0 p3 M! Y- Z2 I, D
/ P: q3 U8 S. c. L+ ]9 D! X* G* {
to get-color% B+ j H" [& O" M6 O$ O' a
$ u) o. w) y% Q$ q; M6 H2 sset color blue
' _, D/ `- P5 g/ f1 ~end3 e8 H: E( c7 a1 Q% e
# p" u! n1 l: W
to poll-class* j6 L& ~, ~6 e4 j5 R' U3 e/ k
end
. l! l: l, W2 e- u( U) h. v' x: U9 m' Z, Z' |/ R5 Q4 W3 G
to setup-plot1
4 ]( r Y r6 \4 E, Q
6 E" u6 }: d C! jset-current-plot "Trends-of-Local-reputation"1 Q9 q3 z) B, I7 V; A+ r' x- B* [
0 U/ x. n) o- Q6 o% ]9 h
set-plot-x-range 0 xmax. K& ?2 k3 O( d1 j$ ^- j/ Z# }4 k
7 }% E" L9 o* h: g, Zset-plot-y-range 0.0 ymax# W! s) h& O7 n
end; K% e0 c. c. Q& i
8 g% i" r* y% e( d! n# M nto setup-plot24 G! S/ F2 f) B) p2 ~1 u
, u( q- O# E2 |* m! J/ F7 g* f v& jset-current-plot "Trends-of-global-reputation"
( b0 c2 {- _5 F; d
3 U8 I6 `! ?1 V6 @3 d1 b+ h, Fset-plot-x-range 0 xmax
( _0 \0 H( Y6 u: F% `1 e0 c
2 f& k ?% M) ]0 tset-plot-y-range 0.0 ymax
0 t* o5 V5 q R! a$ x0 I- mend9 p1 ?3 L2 a6 e+ `" A, h
1 U8 q( G+ J0 j6 S5 x) {
to setup-plot3
' [( e, F h4 { W5 N
3 e4 }8 V; H+ {0 Y5 d3 z7 e6 y3 wset-current-plot "Trends-of-credibility"+ U' _/ [: x, `
$ j* e O& ]4 P8 H3 S5 J
set-plot-x-range 0 xmax
8 l! f7 E1 M! l& b& R" k1 x1 T0 l
set-plot-y-range 0.0 ymax
) w5 e V2 ]7 Oend8 o9 Z# ^4 _; l5 {* B
1 x5 I p. v4 v3 b+ j n0 q7 R# m
to do-plots+ d/ a4 B0 R8 x K9 u# W
set-current-plot "Trends-of-Local-reputation"/ V! w+ b0 W6 H
set-current-plot-pen "Honest service"
/ _; h9 d# p, \1 m# }end
; P. ~4 @9 y! _5 [# G( i! b& a G8 B6 _
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|