|
|

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
+ l# R6 P# K: ^$ P7 b% @8 Sglobals[( T! N7 H+ C' _0 f9 e. a1 X0 B B
xmax1 {$ W! l" N8 ^9 E+ R7 q
ymax
/ d( n# s; i; N7 Q+ _. n1 ^global-reputation-list
5 O1 |* l; j0 H5 I2 m
; ]8 x8 \' Q$ w& _;;每一个turtle的全局声誉都存在此LIST中
* G0 e) p, O2 P7 Gcredibility-list
2 w) {1 h& f+ U3 J6 m" d;;每一个turtle的评价可信度0 G/ }6 T$ C1 G) l$ v
honest-service) G4 I, ~$ O, ~2 w
unhonest-service) \8 T: C" L+ g
oscillation" h7 I1 W& E$ d/ F
rand-dynamic
" m0 R$ o0 ?' f) A9 d]* n o4 [3 ], X" r
) e& |6 h8 j: f6 t
turtles-own[
' \# |) a" b5 I$ f* T/ B7 ]trade-record-all3 e. M _7 Y: {2 N$ b" ^1 `
;;a list of lists,由trade-record-one组成
3 Y4 C) G+ g; ctrade-record-one
: X# T* N- C. b3 \ _* D;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ j% Q( ^ W" a: ^6 y, |6 ^+ O' X/ C n+ b4 u5 c4 T+ d
;;[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]]
& ]( d4 K& P# C$ z/ Vtrade-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]
0 Z# O% T3 X1 a9 C' w4 ?9 {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list8 I* @) |8 N" L3 T$ H
neighbor-total
A1 w9 l+ N5 {6 A;;记录该turtle的邻居节点的数目
8 W! R- x. j# y: H5 Ytrade-time8 A8 E2 [! y: ~/ G- C: m8 y2 S( H
;;当前发生交易的turtle的交易时间0 }8 p3 E5 g* t: G8 ?9 ^# s
appraise-give
1 E4 M* j- A% v; l5 o& ~( O;;当前发生交易时给出的评价. {6 d; d/ L# o& u( O- `
appraise-receive A! ^+ N/ ?6 t' F' n
;;当前发生交易时收到的评价
5 \4 k# V7 E; l zappraise-time2 p$ {! @" S# I: W3 T% w1 j5 p4 }3 x
;;当前发生交易时的评价时间
" e7 ?2 I) `: F" k; w* dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
t4 ?. C( U ?% D1 V) rtrade-times-total( c, t% Z8 h6 m; \& t
;;与当前turtle的交易总次数
" x% j6 i5 P" w$ Y4 g/ Rtrade-money-total- M# _ ~5 l1 Q
;;与当前turtle的交易总金额8 B! T; _- B; N
local-reputation& k* z6 N! h0 ~+ M6 l1 w& K" b
global-reputation& R' c7 e6 T% f- ?0 n3 }
credibility
9 {% j# t4 n2 ]6 R' E' V, i;;评价可信度,每次交易后都需要更新3 h+ |* o0 U- D, k) T: ]7 P+ P1 B
credibility-all8 D) ~% s; v6 ?0 q" C0 Z, I
;;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
% l1 R5 z: ^. b: P- [; L/ N" ~) ~. y. I% T+ c) 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& G) |0 t: N) k
credibility-one, U6 T# [& j+ @
;;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
$ T- `9 O. y- P: ]4 a! nglobal-proportion( m) Q. O/ S9 }1 ^8 u4 N
customer8 C. O2 L# [# d9 e/ ]) N
customer-no
1 S. h. R1 a [) I7 L- O+ qtrust-ok
0 u, u1 l4 `" N2 ~( Etrade-record-one-len;;trade-record-one的长度; O G, i9 ~3 S9 s1 e
]3 S8 ~) w ` i( b3 W+ |9 {) w
& P, x4 G. |1 M, G$ Z7 r7 X
;;setup procedure
* _1 _" l% b m d0 ^
3 ~9 ^2 q/ \8 t: Y( q6 fto setup
. Y5 d2 s6 t" ?, `4 K* P! _- t3 } f1 x
ca6 h! V( w( k/ l1 a6 n- A3 |( J
o$ m$ X8 ]# ~# u0 Y& Sinitialize-settings
+ d" ]' w' P# m: ?
- u1 |. E' s+ W5 ~crt people [setup-turtles]9 o+ F* _, B" W0 O! [$ @& X; o1 d: L
8 w: U j! b3 [1 b5 greset-timer& C% x* P; V8 |5 U. V; [* X4 W
/ @3 m; W6 `+ b# K4 z( Y
poll-class
! O/ Q' M3 M. u* x A# p5 I7 K6 i8 l" e) M; o
setup-plots
) C1 i0 k, F- j! V& t% l! R+ Z6 X, ]2 @. e* R7 K7 F" K8 M
do-plots
' ], c8 {, p, ^ u3 A6 T2 L+ wend8 V# B! U8 Y% E4 c- a5 N, L3 q
5 w6 ^! \; u2 T" J$ Xto initialize-settings
j$ c# G3 S% N% D+ B; w7 Y1 q# n5 x
. U2 Z5 h1 F$ A- O# [set global-reputation-list []% R# F( H% P+ L" G0 ]$ w9 ? h
. ~5 @/ x* v: j) o" M5 G
set credibility-list n-values people [0.5]
+ y6 F/ v" S% V- M1 Z
, z% x) @" z+ H) p) o2 Yset honest-service 0
9 r& R4 S( H: E
" w. Y# Q( f* ~+ @set unhonest-service 0
. z0 P: [" y0 N1 {9 c& `" g. S H
set oscillation 0
& L" [0 G# B! V. j4 [/ I n8 i3 ^ D# K- x& X, k
set rand-dynamic 0
0 d1 W; N" x: m( }end$ @5 g4 K9 |6 N0 A, ?
9 }1 I: h$ o' E4 N% D( ]8 R% ]
to setup-turtles 3 P" x! d# x. w" E# \" \; o
set shape "person"
7 i$ J& r5 ^! f% d1 k+ \0 S+ }setxy random-xcor random-ycor5 w# T8 P8 P) M% c) ?3 W& H2 Q4 \
set trade-record-one []
& c" z9 J' t; M" O9 Y; ^% x$ ]2 L4 v+ x9 x r. ^ P( H! @ S* l
set trade-record-all n-values people [(list (? + 1) 0 0)] ! c, ]: e# E ]4 ~- \4 U
7 Q4 n! U( R [set trade-record-current []9 Z) j$ V2 R& }3 s: o8 F. u) R
set credibility-receive []- `" `4 |% z- {) x8 r
set local-reputation 0.5
* W9 ^0 B, l7 o8 n$ i. yset neighbor-total 0
8 Z: B. O& R% @' V# e' X3 m# ~set trade-times-total 0# c! s7 Z7 E3 \. r8 F; j
set trade-money-total 0
4 r) p1 y b8 I0 [set customer nobody w0 v5 M- E/ p) i: [! a
set credibility-all n-values people [creat-credibility]# \! Q( B, n' x0 q
set credibility n-values people [-1]
' j* [3 a9 x I% O- q! qget-color
9 j. t3 S% z7 j' d" a/ V1 e/ h F+ x+ s
end# o5 k# z) B. G4 t+ U
5 @. `. f( v& Jto-report creat-credibility+ a4 ~) h, D3 C J! L
report n-values people [0.5]
2 p1 t8 X) l" q9 V# mend# W: Z1 i+ E" \2 M1 M- @ m+ I9 l
; ~( Z4 m) N$ d! Uto setup-plots
* C% N0 s& S7 p3 a3 s' {1 w& w. v2 c
1 }7 U, e! P/ R& hset xmax 30
2 o% n& p9 g! F4 s1 K" G
- Z! G4 j" Z8 `/ x% | Bset ymax 1.01 t1 F; }( Y; S7 E+ e6 B9 C; G
) f# k/ y: _3 _1 a% ~clear-all-plots/ ?( P0 y9 C, q3 W3 L
4 f2 R' e/ L0 Y' \setup-plot13 u6 w# C: \4 g+ ]' ~- t
5 v1 e1 X8 n& v2 u5 P/ e. e& Y
setup-plot2
e7 w2 L5 Y6 Z# i
& z1 f1 J* D) F K: R( {) b1 bsetup-plot30 l5 p) o3 b- Q6 f. F7 E0 I+ @
end+ I* ]% Y( Q9 v: I/ N/ m
$ a) V( f" A" ]# ?
;;run time procedures8 _1 X& I, ]& l/ v
+ }- g0 x g0 c& U, M- o2 b* eto go
& Z- u1 B. e/ h$ s
4 \2 W1 B' [1 T# w6 v# D9 Iask turtles [do-business]: p( O9 q' u4 {9 {- x
end% i( y: @ } ^$ @/ c7 ~6 l3 c
) q! Q) f) s {( w6 b3 D
to do-business
5 W- j7 V" n0 h) M" S+ L; u) e
6 }9 j$ O" H7 \7 o+ a; z/ ?! u$ n$ L" [& q
rt random 360
6 E1 r! ^$ q' k) b
: ~: S8 K% }. v6 Afd 10 \; ~' A) y0 E* P, h+ K- R
. r5 [, @" L9 z. t
ifelse(other turtles-here != nobody)[+ f7 U# f" b( C) ~( R- t
* a+ D4 ^( O2 Aset customer one-of other turtles-here$ v2 W W+ _. y! {- E
: j) L6 c& y1 P( G% b
;; set [customer] of customer myself: ?5 u! }. w6 H
5 @4 C$ g. h# L: U
set [trade-record-one] of self item (([who] of customer) - 1)* a9 n/ J2 k! l
[trade-record-all]of self
2 W8 Y8 O" B" r' a3 `;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self& Q9 R! J; |# D3 W/ H
' e0 ?$ W* j' U. a* T& i# @, ? c" q
set [trade-record-one] of customer item (([who] of self) - 1)
" ]& R* x6 w# K& }[trade-record-all]of customer. ^+ |& Q- \2 R% t" o9 R& V+ d
9 D g, ^8 {: K- s/ T
set [trade-record-one-len] of self length [trade-record-one] of self
* V' Q( B4 \& ?$ e6 \8 }
: f: m3 x5 V8 _, a) z J3 Lset trade-record-current( list (timer) (random money-upper-limit))
/ n( }' @0 p7 @5 w/ h7 D0 p$ Y0 A5 p9 w V2 \) H6 N
ask self [do-trust]# c$ I6 l" L. f7 j! N
;;先求i对j的信任度9 d( f, o. ?6 G9 q3 W7 {
# A: U z/ _7 s0 I0 p9 Xif ([trust-ok] of self)
9 u: j( ~- @; A$ q, T;;根据i对j的信任度来决定是否与j进行交易[
4 K$ e! ]3 ^. \ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
3 d: K( r0 Y' j0 ^% c+ ~5 F- B% i" M% N2 o) a3 q7 c
[
+ A- m0 P2 i$ g, M2 w/ o8 R
. C! J7 y# M1 S" v( R' odo-trade) ] j: f$ P* Q2 r) n: ^
7 S9 ^ }0 F5 J* B5 u# q2 C; v
update-credibility-ijl4 k; E4 A) ~% ~8 K3 S
2 C8 R. {8 O; i2 t- z5 L. gupdate-credibility-list
8 u& s! E5 ~" u: q, G) y( P: R. Y( e: E6 W2 ]1 y
$ Z# h- H' B) R; ]
update-global-reputation-list. C" V2 A5 y, k
# k7 B; t; I$ U. `7 F- j jpoll-class+ t) Y" X K! F# ~
/ @0 S' R, v( F7 P- |+ Z' ], B
get-color
1 E9 a4 {5 a9 l1 h2 }9 N
5 n: N% E8 i' D+ n]]
, L+ m8 L/ O; S1 J+ k
/ g" P) [3 m5 f6 Q;;如果所得的信任度满足条件,则进行交易
. I8 |' Q' l- C
3 ~6 d" S# O+ g2 Y+ p[
& D' Y1 V" e& b: K
E4 w( x' E% U0 W4 \( R" Jrt random 360
7 o; m! l$ K# _# j" a& g
5 C$ P: c4 _3 N2 \7 Pfd 1. P6 {2 _5 p1 I) L9 E
. }0 B8 K$ N% b c2 _* z
]
: O9 d, ], J9 x% \7 k/ A
# k; C6 g# r8 A( Y" b0 i- Aend
# ~' T3 y* U2 M- t+ d7 S2 s2 [# \, G: q g, R) i! \( d
to do-trust
5 Z# b: @7 s: }8 Y- o9 bset trust-ok False
6 ~1 Y% x% R# ~, E; ^
* Y$ q' d# B; }* t" j& g, `, N; P* w% _5 C9 V: [: H- R+ d
let max-trade-times 0
1 O0 `+ }! p5 H* [# @- ?, p8 ^ |foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
5 m" w- n6 G& C7 s# Slet max-trade-money 0; F3 ?; O7 v4 C) q
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
/ w, x8 R, }( k$ b7 }7 M# Jlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
" M# J, {( |% I% ?& {" O$ @, \! U4 _+ E- Y' r8 ~# v
0 h! k. s8 F+ D( uget-global-proportion
! ]( z4 u. l" @: l. l. q0 zlet trust-value- D6 d5 W2 v# K3 O; d
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)
0 g& M8 H+ E1 U0 `4 _# T ~/ ]+ {if(trust-value > trade-trust-value)9 R: [& |) g5 s; Z
[set trust-ok true]
6 Z9 }; a# y8 Y5 qend5 a8 W- H5 i9 N3 S' ?
& ~9 L$ y7 p9 H6 O8 W; R% d7 l+ ^# g
to get-global-proportion% s3 Y* J' S. c: w- d/ T, H" u
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
2 k9 K& X B, [5 T[set global-proportion 0]9 a/ a7 R5 Q! @% u- T
[let i 0
9 F% T' c$ @+ d/ j$ n$ u3 Alet sum-money 07 P% j. [- X! Y7 ]: T
while[ i < people]
$ Q2 h/ [8 a Q3 r! |; x[
: I- p* z* ?9 jif( length (item i0 F' L( |. _: g8 T5 h7 l7 t
[trade-record-all] of customer) > 3 )
7 }6 v+ g& R* d/ I* n[
5 P) ^# q( p1 q$ j" ], eset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
* |' T+ j3 e& `) l]- u3 L3 X5 T+ M' d+ [' |0 q
]$ {! F2 T/ V$ e0 [' D( L
let j 0
$ D( f( I2 {& P1 w8 Qlet note 0) p Y5 Z: X9 ^6 p/ [
while[ j < people]
. i& p8 j# d' i! B! ^; n [[
1 q7 }3 o! A& S7 T5 h: Zif( length (item i# @% @- D* N) B& l* Z6 c8 R4 r
[trade-record-all] of customer) > 3 )
* y; R3 R+ k. z( [[3 w: C; H1 S, e# h/ o
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! r5 H& {* E2 @/ R) D9 n
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
0 w) J" X" t' H9 F( b4 H[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
: P6 D n" H5 P2 u]. ?/ b3 A7 f8 P
]
; t. u" k* H7 F) z& Z. d: ?6 Gset global-proportion note$ B* w: T- ?1 @) I1 g7 @
]- U6 H( b* p' ?+ z1 I
end
/ t% G! ^9 W" k# u* A3 s0 _. @
7 V5 p+ Q; Z D& `+ c. P8 X, S8 gto do-trade
# _& j7 a8 ]+ a6 f;;这个过程实际上是给双方作出评价的过程 d; r& I6 i0 |) P' p$ p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
+ B$ J+ L9 z7 E4 m9 `set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ @) i" k" k$ ?set trade-record-current lput(timer) trade-record-current0 o' T% `7 k, O$ Z! R
;;评价时间& F0 d* f& H! H
ask myself [5 _9 W2 d9 I+ @! x9 D1 O8 D
update-local-reputation, G/ j I5 l0 v! b1 v& n( \- I+ G( s. A- X
set trade-record-current lput([local-reputation] of myself) trade-record-current
B* Y% l# M0 P Q0 N9 O' ]+ ]6 w]3 o7 q8 a3 @, L
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself9 r3 w3 |; `1 z% J. H5 \
;;将此次交易的记录加入到trade-record-one中
, ~4 {8 \7 v/ Z+ C" r, V: sset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): h7 J& G- W) A+ y
let note (item 2 trade-record-current )
5 h& V) G/ _ h) }! `' Pset trade-record-current9 q% z; p$ H$ [* F0 D
(replace-item 2 trade-record-current (item 3 trade-record-current))/ R# C, R" F$ Y+ @; Z8 i
set trade-record-current
! m% d5 G9 i* h$ x8 S4 v(replace-item 3 trade-record-current note)
1 M; D1 j) p$ ]% P/ w) A x3 Q0 V
8 `, G, s* H7 O& w/ w; o: w! t3 I0 Y8 |
ask customer [ S0 k4 t: e) L0 F7 v$ T5 n; V7 T
update-local-reputation7 t% `. \% M" Y8 d3 @
set trade-record-current
5 N0 S. P: {4 ^5 z# n(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
9 `* c+ o. [3 v- y" a; v: u/ w]7 s8 E/ Y: A3 u! \3 O/ v, O
# N! r, m% X3 x
. Y k* Q# W$ M8 Eset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer5 ^* k: f' f6 E0 ]8 R7 [
- i# v% i, e2 ]1 N' S; f9 T4 l/ m w& C
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))* ^9 s0 f# Z4 g$ n
;;将此次交易的记录加入到customer的trade-record-all中
9 P& t1 I M) f( ^. y! T6 c1 Qend
1 `" v1 W- f+ O2 A; M
$ l/ Q! j D2 C2 g, a+ G ^% t! Wto update-local-reputation! Q4 n! O. z; M Y: _# m
set [trade-record-one-len] of myself length [trade-record-one] of myself* @8 P8 M& e c5 q
* j8 L* e8 X J. j9 r8 I
) f6 R7 @- W2 }! J" \; D;;if [trade-record-one-len] of myself > 3 - a& x5 j8 e7 X: L/ w( l: e# e
update-neighbor-total% ~& L: T- {5 P6 j% Q; }2 Z: _7 ?, G b
;;更新邻居节点的数目,在此进行
/ w* @1 B, }( K; R9 hlet i 3; \. j% `6 x: G4 l# N ~9 O
let sum-time 01 B6 x7 G, {: c% Q' E* [* o, I
while[i < [trade-record-one-len] of myself]9 Z( H, w0 c# _9 f' ?0 _
[
4 m: `) ?/ ~* g$ E/ xset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' p8 e8 n& O8 ^& |' W$ _
set i' p3 Q/ O* J. [* I' [
( i + 1). U* t9 V2 Q; u C
]
9 K5 @% `7 P2 g" A) H: d0 plet j 3
1 D; {0 z& Z/ Z3 qlet sum-money 0
4 u: J- j* I8 |% v* Hwhile[j < [trade-record-one-len] of myself]
1 n! H! S9 U" K[
. k: U! r8 i9 Fset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
% b8 C: h4 [: ?6 Q& q' ^8 Wset j
) F( [, N6 K) v( j + 1)+ U, }" ?% P) B* U5 K1 ~4 p2 L
]
/ M" `0 O! j' ]: C0 V( }let k 34 |6 e1 K: l, k6 G3 B/ j
let power 0+ \& ]: I C3 [5 G4 D# r
let local 0
3 j7 ~3 Z6 b7 t5 g# O( fwhile [k <[trade-record-one-len] of myself]
3 }9 D& U& {, G1 {- g) M[; _" B5 `# C' }2 V8 s" P
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)
. D8 u3 I) s5 E4 o6 _set k (k + 1): W; K" b/ K& O! x1 e0 J8 p
]
) _9 b) B! |: S( T' Dset [local-reputation] of myself (local)
' q9 z2 \0 @( u$ i+ n. O9 d. {7 Tend
$ \% p$ S- G% M0 W; l }( G a$ O
to update-neighbor-total5 |7 k5 N- z( ?) Y* Q' ], V
& B& J' i% |9 n0 r) r2 O9 A* ^
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# W1 E. I) }3 Z1 K, [) l. ^! N
3 K5 y! x2 t* G6 t1 ]
" v! V2 Y% d6 @0 [& j6 n% Gend1 a7 L8 z( ?1 j& m' f
1 w, v) W( o- s: V& C/ Lto update-credibility-ijl
" z+ Z* D% F n: ~ H4 h8 c' |! B) B3 t* M8 F- N! V# L, P& 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。0 p9 K/ e' _! x
let l 0' B/ v' u& S- c
while[ l < people ]( X9 H1 J) ~; X& c0 O
;;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4 o" L! y: ]+ e7 l
[! ?+ u5 s. ^' n( ^: A+ v7 M* {
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)& j! `8 \, O ]$ Z0 ], U A
if (trade-record-one-j-l-len > 3)
- d2 Z/ C9 ]; {4 ~5 _2 z- i[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
! ]1 t2 L, g/ @* `' o8 |let i 3
0 l/ t7 C& T* i1 a# v5 A& a! S9 Flet sum-time 0
+ K6 n$ [5 P: t, uwhile[i < trade-record-one-len]
; f9 P4 [+ g/ S) L0 v[
2 E2 T) u n: T% [- ]1 ]set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ I* p5 e: m s8 N
set i
# B/ h0 s# J! s4 I7 S; m8 R( i + 1)
6 ]: _1 W8 v# L]
/ U1 H: ]6 C% Z6 T7 y* Hlet credibility-i-j-l 08 \7 ?' b8 v2 a! j9 j
;;i评价(j对jl的评价)# |8 c, k8 D. @5 }( l: T
let j 3
. x' e+ E* J' d8 X- x/ q% Olet k 49 ]2 e9 ~. Q! e$ P3 x
while[j < trade-record-one-len]
E& m* X. T$ j0 O* M. `1 r" y[' W- R6 D8 ~$ Q4 H+ \# D
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% z& |3 c% _8 f5 }9 ^' F
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 |; ^) y0 u# h) Z* v3 ]9 i% jset j
9 |2 ~7 I0 R, u2 q! ?% S( j + 1); S+ N6 y" S4 ]! r& K' W
]
& B" M( Z4 k3 R. cset [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 ))
. }1 y- b4 c7 `) J" I: [$ @ S4 K! e! `6 W4 n% I
( ]: }; a8 p6 h5 j3 o# k6 g: R. M$ Glet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
" O. S/ [" ], P2 c;;及时更新i对l的评价质量的评价
+ d* B5 U$ _# @1 o* wset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
) G$ P% {! T o0 oset l (l + 1)' B9 K: d# j( r& Q, y
]
K# b( z8 T* n6 I# f0 @end
# }' \5 R1 o5 I" M3 B* V, u; h0 x: R
to update-credibility-list
: q) L/ m% {" C+ Llet i 0
& _( K' j9 V: Xwhile[i < people]
4 o h/ H w6 f1 v( Q- a[
: \0 [9 v x% Slet j 09 D @3 v% D: L, K2 e, k. f% U; s
let note 0) G) r {% n0 V# p( K0 k* t0 Z/ o
let k 0
# [" J* Z, }: l0 [% e0 g; a;;计作出过评价的邻居节点的数目7 k7 q/ T9 N3 h* F9 {* N$ r1 A% [
while[j < people]7 h q. c& s& G' E- X
[5 g. M4 {9 F0 ] Z$ h, H/ y
if (item j( [credibility] of turtle (i + 1)) != -1)
- I* D; w4 Y- G9 ^9 `) [! t8 E6 V;;判断是否给本turtle的评价质量做出过评价的节点
* F8 `1 o- X% R. v[set note (note + item j ([credibility]of turtle (i + 1)))
) u8 T1 x8 e: Z2 o8 y6 O! x/ b;;*(exp (-(people - 2)))/(people - 2))]
% m- N( R- F6 q# i0 B& {set k (k + 1)7 m0 S7 M6 R8 H1 e3 {0 A
]" Q8 S3 c; j& K0 M4 {- Q
set j (j + 1)
/ f' j. {% J! d' V8 m; j]
3 T: c8 O6 l0 gset note (note *(exp (- (1 / k)))/ k)
+ [( U% d! z7 E2 n i& D# X: }" H! O1 C0 `set credibility-list (replace-item i credibility-list note)
* E9 F9 a% @1 ~, _9 a9 b( w+ Gset i (i + 1)
, z- T J( w, S! w$ T; Z! V" S$ z7 S]2 p3 a% N) p0 K9 w7 N9 w- ~5 Z
end
4 {! y" z0 O8 r% k* ?4 ~1 H' J
. ^; ^3 ?) v. Z. Q* ^to update-global-reputation-list
5 r: X$ f7 ?) Z n! N' clet j 0
$ G4 L. H* F* V( [- o9 t" P% pwhile[j < people]1 s* l w/ `% w9 u4 B( J2 U
[
' ~" r3 J/ K' h: Q! q6 R$ mlet new 09 P( p8 h( M" ~8 a6 l
;;暂存新的一个全局声誉' ~4 f! |: f/ N4 x
let i 0
7 m/ K' z2 i4 R: i3 j0 a& G3 Nlet sum-money 0, _2 I6 e9 n8 ~2 n. d o
let credibility-money 0
8 \- f: Q# X0 v) V- A; r' hwhile [i < people]9 }! ~& ^3 W; r0 p. C3 f
[2 S, ]) m, t; H" C7 m! D2 D3 r
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
8 F6 Z; V9 p \* K! R: c. i0 Uset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
4 `! _- }% \4 T3 oset i (i + 1)' k/ |; F3 b, n
]) W% ~: F7 }( N s) _( e/ _% i
let k 00 j. Z7 T _ J8 t
let new1 0
8 k8 t* u1 @, P/ C/ W8 `1 s4 Hwhile [k < people]+ _8 }. X0 r D3 J2 D
[
8 J; j$ q0 Q! G a2 kset 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)9 ` j& a% ~- i
set k (k + 1)
( |$ ` c/ J. ]: q8 e2 g0 S1 p; \]
- T4 O4 s4 m, |/ f! e1 Yset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
" o# g8 K; H. Cset global-reputation-list (replace-item j global-reputation-list new)
/ a- d9 P) r, i# xset j (j + 1)
" f% k3 U% C; n! L% W, H]
$ h7 n; q) u/ P- O; k% t1 Kend
/ F! I+ z2 }: l! S$ s
) I" n$ M) B9 q1 C9 y) t4 q) V/ `+ U% w( I9 ?) C
0 h! [# l* v* |1 A4 U! e
to get-color: E. C. N" y( E
2 y# o( m8 [( V3 i( x! c0 y6 H
set color blue
8 g7 c$ P2 j2 F1 N8 Uend
+ b) J: T& `6 C) y, q2 X! W* m6 Y3 _$ o8 G
to poll-class
9 d9 T* U4 C" _' i7 p) pend
( c0 [2 z5 J7 V" a# K: L! ~( q1 k
7 j2 R1 G' v3 h( V# H# Sto setup-plot19 N% c; e: T! t$ ^( T
j+ Z* z! ?( ]6 ]( a/ Rset-current-plot "Trends-of-Local-reputation"+ P! c& w& x% {- l
! l X" G t" L! f3 C) q
set-plot-x-range 0 xmax
1 G( ~5 S* ?& z2 N7 K- I: S0 E5 c/ h. y0 E
set-plot-y-range 0.0 ymax8 n0 Q3 ~" q! W h& v; L
end
9 J% B# `5 \, f" k3 S# F5 \
$ Z* m4 C- m' V2 f6 Oto setup-plot24 ^/ C6 C. E9 |, `6 x1 i
1 X( X" N$ @" C* t1 f7 P0 y! Uset-current-plot "Trends-of-global-reputation"& v- T2 r7 [2 I: a
1 B' H) U; C6 w) v& H6 E$ Hset-plot-x-range 0 xmax ]( V3 {; Q) c
, ~( }1 G1 q+ U6 x1 X$ t4 M
set-plot-y-range 0.0 ymax
: u: Y# H7 e3 N j9 nend
8 k$ X9 O7 @7 ]# p! t
, {! Y X0 f1 i2 q. j w" Pto setup-plot3
) u; H# e X) x7 u! o
* [8 o7 Q/ U6 h# E$ o& X6 Yset-current-plot "Trends-of-credibility"+ `6 g* G0 F) ~* d
0 r4 d9 I% z" o9 J4 sset-plot-x-range 0 xmax: N$ v4 j: } t5 @! E+ X4 ]
' m* O5 B" ~: nset-plot-y-range 0.0 ymax
' K) L3 F4 B' send- V T. n; Z7 F- l( [# t
1 D1 D) \8 k f: pto do-plots
# G2 r$ w( l7 K# q* M+ P, ^set-current-plot "Trends-of-Local-reputation"
: M3 d% a5 E. N$ A w: C6 Zset-current-plot-pen "Honest service"
$ m- o1 ]5 L U- F, kend. E* m" t* L L6 C
) ]" N X; X6 P9 ~( n$ R[ 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
|