|
|

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
: m, m1 B% N# M' v: T0 j4 t, Z, dglobals[: e8 {; ~1 d" o& i' @
xmax. [6 w2 W) k1 V
ymax
% j9 e6 D7 K$ ~5 Bglobal-reputation-list2 `: q$ U) R |9 T, N$ i" d7 i
! v' @# F% }' S, p& S3 b
;;每一个turtle的全局声誉都存在此LIST中
7 }, J9 w) L. @credibility-list' {$ a! m( k& t1 R: J& ^
;;每一个turtle的评价可信度 c3 m% d1 ~6 i4 b
honest-service
R6 C1 p- g- w+ zunhonest-service4 C* }7 D/ H2 J, b+ r1 E
oscillation& ~/ S; Z- v. v2 j
rand-dynamic* c& j, _$ S. i, U9 h
]
3 q- |7 G2 w6 D
" u3 L* f4 y3 G! B- nturtles-own[( P1 W* }. p+ m: ^2 j( S
trade-record-all5 j) a. d7 ?7 n. B& T. h
;;a list of lists,由trade-record-one组成# v* _9 {& p& P% D
trade-record-one
- a( f' }$ G2 ^2 }2 y1 v;;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 M5 b' f" F, e7 q
; X% S! q5 I, E o4 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]]
2 A4 P" y/ i+ {( P" l- Qtrade-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]
' c/ y( z( g2 v zcredibility-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: S3 q4 y' c+ c( S
neighbor-total
% ^6 S* b8 r8 l- c5 C;;记录该turtle的邻居节点的数目
# H: A% K" m" vtrade-time
: I1 e- p$ G G0 @: }, b;;当前发生交易的turtle的交易时间' Q; v8 W! N5 w/ e/ _, E3 g
appraise-give! i( n: d2 n- l/ F
;;当前发生交易时给出的评价* p; v" O- `0 i; ^+ X D
appraise-receive
, ]. m( @8 O) g; m' m;;当前发生交易时收到的评价
z+ a+ a! @ W1 w% Pappraise-time8 F) w' I. G7 ?0 H0 U6 j2 N! w
;;当前发生交易时的评价时间
# s7 H5 x1 T; f1 Hlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉# }7 W: i: o+ w) X" t, ]) V# A
trade-times-total3 H& t- L# [) e4 ?; x. i
;;与当前turtle的交易总次数
# |( u: T0 p5 j6 I' }* i, Gtrade-money-total
7 G% D" V# S* g, B: \/ ?;;与当前turtle的交易总金额, j) ^" u. ?# c
local-reputation
+ G3 L: b' I) K% G) I0 i' oglobal-reputation
- N+ M7 ~2 e; b" Xcredibility
8 T4 ?. J1 ~' Q" l0 t% L( V;;评价可信度,每次交易后都需要更新
/ L7 {7 E4 U' D9 B. ocredibility-all
" ~0 q5 W) ^; u- d* X;;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
4 J" l6 o$ u2 J* @! `5 v. j. C
( t& G5 H5 e3 |;;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+ i% s' E/ X+ v' V
credibility-one
6 `( `( `' |! J _. m6 ];;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
' m% W; c. i/ W2 H1 n. ]global-proportion, z) |6 T4 B7 y, @1 H- u5 Y# h
customer4 k- p8 B" K6 s: I9 @' y) T
customer-no
1 { x, W) i# c1 ]8 ^4 c+ Strust-ok
/ h7 W$ k9 h5 W* X X B2 otrade-record-one-len;;trade-record-one的长度4 w, ?% s% A+ ]) z3 K; o4 x/ q
]6 e! Q' e- }) z j8 U
' m9 e$ Z/ k; G/ x1 }5 H* E0 z7 g
;;setup procedure5 t! \5 Q2 r1 w0 x# S
& C% |8 y# i, S+ B; z2 @to setup
& `- c0 e c F5 ] ]0 o4 N. M
5 F- v; J6 B- M6 Oca
3 [; E; Q" ~8 Y, z& f" t/ C
7 W5 B4 {# N. S; F/ Pinitialize-settings4 w. y7 [: d0 O
- Z( q$ k) J) s# }* g! l6 x
crt people [setup-turtles]/ Q* c1 @# v2 R9 y' M# o3 d
) t. ?6 q2 | H( K2 {" [reset-timer
) v+ N6 o/ [) r* K f0 e9 S* B& N- M- i; ~, _
poll-class
: j2 _; B+ L' R) r* c$ Z, R* U+ S7 ?# d T/ L; }
setup-plots, q* m; J; C0 [( Q" r7 ]: l% l H
$ I$ `- u' H) L& s- B4 [
do-plots
& c! E6 y3 ]% S. S" m/ w Y' oend
+ e2 F7 I% ?" H) u% N$ V' G3 K7 p9 ]$ }$ ?
to initialize-settings2 M+ s, m3 q/ ]! q
/ Q+ x% `6 v1 R3 Z4 H
set global-reputation-list []
9 n3 g2 W5 j& u3 H& W
. x) x$ g/ ]% s8 dset credibility-list n-values people [0.5]
4 p9 W1 T( N, m" v
' W% ^7 l4 \, Y+ C: ?: ~# iset honest-service 0: h) `: `6 X6 e* |
& S+ Z0 b* C" ]3 v% W. @/ `
set unhonest-service 0, [1 ^2 N2 z9 U: W1 @5 }3 m
* a* B# f3 A6 `' \
set oscillation 0
3 v- K3 t% d) A. v1 L
% e9 u4 H7 g+ m. s. n8 o+ q) lset rand-dynamic 0+ H' R$ D7 M& c8 l5 I- C
end/ [. U0 I- Q0 h/ _* _8 E; H
6 Z$ K2 H' F$ C9 B2 R0 Y0 ~
to setup-turtles
9 E# t4 D( F# d0 d" z2 Uset shape "person". O, M/ E% u3 T$ f+ r% z& v
setxy random-xcor random-ycor& J/ a5 e" l5 V' _ y
set trade-record-one []
y" L: t* Y0 z" U8 u" m7 c4 ^4 a+ B, C! G( z4 c U. s( ?+ b
set trade-record-all n-values people [(list (? + 1) 0 0)]
( n3 F# L7 {$ _% M9 i6 t" e" E0 O. f" p) R0 g3 o
set trade-record-current []
# m8 {. f& q; V5 O, ~ vset credibility-receive []
. k& q/ q4 |/ U; v! b$ m6 gset local-reputation 0.55 y4 t! h3 i, O: l7 S
set neighbor-total 0) l4 q# A' c9 I- ?( L
set trade-times-total 0
0 R0 f5 v9 W# t! {set trade-money-total 04 X* x( ?8 A3 Z, A/ i) ^$ \& ^2 V
set customer nobody7 q& e. x6 [- r3 ?. s4 y$ H1 y$ r
set credibility-all n-values people [creat-credibility]% B/ r9 z- s/ f" E
set credibility n-values people [-1]+ I( A2 ]+ u. c
get-color
# o. J. \2 V% M% q
/ \) ?, A3 X- N% b% ~! W2 |. Wend
! p2 C$ C7 Z2 p. b* d% y8 Q( I! s* h& q5 Q8 }% z
to-report creat-credibility
1 N0 C6 E H+ L3 \report n-values people [0.5]
1 T, z/ |: E4 y, R. l, O& N$ }end" ` ^* W/ k/ q J5 w
0 ~8 V' J- |) b Hto setup-plots6 Z! ^0 m1 a! s, p' h2 a
) D8 D( U5 x; Z6 d$ t7 _, Q
set xmax 30
3 {; y' _& I7 W5 r) J# J) }2 C: [/ B1 ~# v0 P3 ^0 e- T; _
set ymax 1.0
5 L7 I1 q& d1 g& S7 @! \: z; m+ T' N. U
clear-all-plots K1 v9 P; N* H
. e7 M# O% G) y f* d5 G5 \0 rsetup-plot1
" M. i( d9 @! p2 j
. k3 m1 {$ t1 d' M) c q9 nsetup-plot27 {: o1 K4 h" K( G
! L2 M5 R* ]( }
setup-plot36 Z9 f/ t* q4 O% i5 u
end
% F3 f( I8 a8 }
0 w, c. c8 a: Y7 n; S/ P3 I;;run time procedures
9 X# `9 B2 r5 U* P, | ?* p- }/ @( O4 c$ F
to go5 b( K$ D1 P' B
. M! I: C( u) ?6 @/ ?0 ?4 t# b
ask turtles [do-business]- J% X5 k0 d$ G _8 V& }
end1 J: Y% I2 N, P) A0 ~) [- T% I* \+ U
) ?$ ]6 H% P* D% i5 qto do-business 5 k* U5 k- |% e8 a! k, F
, e1 v6 \. M, E, Q
7 v( |$ C2 p1 g+ s, n9 K* o( prt random 360
' P9 }4 t8 G" s. h. I9 y3 v
7 G* M6 r" \3 h, W, r' ifd 19 _* S2 _ i4 R4 x# z6 A i) a
! B( O/ u- }: K" r
ifelse(other turtles-here != nobody)[& z/ d9 N( f5 D6 n% k q
3 D2 V9 o8 O0 L! `8 xset customer one-of other turtles-here
) N; K6 u) l# g% A: G" Q1 ~2 M; i; ?% X! q% t! Z& U" ^
;; set [customer] of customer myself
& Z- U, r8 i6 a D+ f+ [( y. s+ i4 K% y- i
set [trade-record-one] of self item (([who] of customer) - 1), e) p2 q" h8 ?7 z1 r
[trade-record-all]of self. T6 f" @. K+ Q2 u: V
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self' D& |+ _; R1 [$ k
2 ], w6 w4 Z3 j v3 z$ uset [trade-record-one] of customer item (([who] of self) - 1)& V( {8 \4 V$ }1 ] m- Q$ l
[trade-record-all]of customer! j/ x: Y. v+ U V
# ]4 f" M. P$ b; B! k9 n( j2 t
set [trade-record-one-len] of self length [trade-record-one] of self
1 X! y( p7 N% X7 c1 t0 n# E4 H- b+ e7 m9 ?/ m
set trade-record-current( list (timer) (random money-upper-limit))
$ [+ E4 Z2 D. _" V1 \. E- W8 Z- x0 l
ask self [do-trust]
1 g7 n* G/ p0 n3 J8 v$ |+ @;;先求i对j的信任度
2 d g+ v9 V* E( c+ X2 B' U7 f' O& a& b+ J O: {
if ([trust-ok] of self)
. `4 K6 x3 f4 G& h3 @) h! k& u$ x;;根据i对j的信任度来决定是否与j进行交易[; z D% W7 a/ k- r0 P
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
8 I! e6 N6 @$ T; q5 b, l. N% L" c9 m4 n$ i, q
[
4 N) w2 \8 r# x
; N0 k9 v$ n: k# jdo-trade |* `8 R: h! @3 ]
' ?; O' w# G* Z/ x
update-credibility-ijl2 K4 u3 `7 g+ z& x
* I- m1 @; T3 n6 J! `6 J! _
update-credibility-list& v7 g2 Y% @' N0 h4 J5 h9 p
/ Y' m" R8 m o1 q- g! K
. M2 B0 T" _ A- Q9 C- qupdate-global-reputation-list
6 {0 ?, [/ C, O% a6 W) I5 k8 }' ]# j6 R6 |) Z# y8 V) k
poll-class
$ k5 `7 x. t- Q4 x* A$ V" T7 |- ^( f! x# b* [% }- _
get-color
! w) v% r% p+ f& J
/ x2 e0 z- x% ]. y E3 p* v: d]]2 K) \7 K) V1 s; F) N. r
# U" P* Q9 P8 d* a;;如果所得的信任度满足条件,则进行交易% j$ T$ f5 ?( C/ c3 l3 Y& t; S
, y, `" p5 H, f6 u3 P1 _" @- f/ y/ Y
[
6 J# g$ [6 @( E0 b C# c6 [$ B/ O0 g+ T$ b1 C6 H! @% r
rt random 360
5 e$ {, t! w( U- U) J6 f- f: Z" T5 d
fd 1( u$ c/ S( b2 E% n2 l3 R
* I# U" R# L) R" V
]* X0 E3 |& [* z+ [7 J2 C/ q+ S
& g6 {- E$ ~9 @0 l; k9 v& qend5 |( H3 L, y8 A( k) T! A
& c. t' [0 q5 d5 }to do-trust ) |2 ?" [' g' x* @/ x8 g% A
set trust-ok False5 i: |! _8 b* i. b
' v7 G0 t% L6 q5 S+ k+ l- k: g# Z0 ~ b; R5 c& h" v7 k+ m0 \1 |, |
let max-trade-times 0
/ v0 z9 f1 L- mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]$ ^& \6 Z3 `: M! m+ a/ m4 P
let max-trade-money 0- V1 P( L$ W- ?' a. C# K/ k: U$ J( a
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
8 F# B+ f" ~* t7 `1 @% |let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))5 q2 ?( }3 X$ V- j+ _7 [
7 j8 g6 Z+ x2 F- V+ _0 |7 c8 N( ^8 S) N6 t
get-global-proportion5 K6 C7 f. m4 g/ d7 e9 v( ^
let trust-value! }( K) ]% D* j( ^. K: K
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)( S8 K2 o. p# v
if(trust-value > trade-trust-value)$ o" n# Q; v1 ]6 d' j" H
[set trust-ok true]
& j. o4 k) `+ w: r+ [+ pend
9 e0 @* Y \5 Q7 m& k6 j o& H) G* }& h' N) o5 M$ t% r- O
to get-global-proportion, O& a, g' P q5 i+ M4 x
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)! |5 j. ~" j D1 Z
[set global-proportion 0]
7 s }" X s' G' P0 T+ b[let i 0
, H; t/ i, U. t1 k2 n7 }let sum-money 07 `0 _* P3 a+ b$ C' d3 L
while[ i < people]
1 S# E R3 B# a[
& ]) A; Z/ Q9 b6 F# c6 V# dif( length (item i# v; D# r% r. ]5 k" Y
[trade-record-all] of customer) > 3 )
: P7 J+ P& e3 c. R1 y[
+ \% p' H5 h9 eset sum-money (sum-money + item 2(item i [trade-record-all] of myself))1 O1 i4 y0 ^: J0 C0 S
]( Z1 N" }! e* r4 b/ m
]
7 n, h4 [( F" p. Hlet j 02 j6 y2 R" Y& E6 V
let note 0/ i7 l; W4 y" W5 `- D: A
while[ j < people]! l8 M' W! T. J
[# p7 U% N D$ `, Y
if( length (item i
: T+ _9 ~. U6 g4 ~7 I: e/ b[trade-record-all] of customer) > 3 )
7 o/ I- w2 e/ @3 f- O[
$ j9 p5 ~+ H& N. O2 |' zifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
3 y0 j- k" ?& A[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]% B7 P3 F+ x0 a0 q4 g* `+ [" L
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
; H' w2 s u6 {* L6 e) [- k]5 K* _$ w. f% L0 {$ e# T& p
]% q6 m ~: m* v b" `
set global-proportion note
. `) U) Q. h9 Z# I- U]( a! [5 b0 ^% O0 D9 [
end
$ W, S: M( `5 Y* ?" r8 A% P, U8 }% A
to do-trade. i R9 j* q7 {4 B% a
;;这个过程实际上是给双方作出评价的过程6 o( M" x: _( n! J5 ?$ f3 V
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价 v) {1 y v+ \& `* v0 p0 `
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
& y9 \; l. B# J/ Q `2 eset trade-record-current lput(timer) trade-record-current
7 N+ }" [ K& i;;评价时间: R; R3 h4 C, D
ask myself [
( X' D$ M+ {& n* U& eupdate-local-reputation
5 f) m q3 ?4 M9 R: lset trade-record-current lput([local-reputation] of myself) trade-record-current
0 }% a: R: p! O( a: z% x; S1 Z]9 z3 b% j1 v, n$ e, ?
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ e0 A; j& @3 d) N) f& f; ]! E5 d;;将此次交易的记录加入到trade-record-one中% d9 N8 Y) `( B# r
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
; ?7 d7 ^. Q2 _9 F& wlet note (item 2 trade-record-current )8 K/ ~/ C% T* n! q
set trade-record-current$ [# B( O; f% A9 s3 Y. O& n! w$ {
(replace-item 2 trade-record-current (item 3 trade-record-current))
) i, d% l" D7 P5 G; ]5 jset trade-record-current8 x0 G e, t& X" s/ P
(replace-item 3 trade-record-current note). M% n! E; k J l
- i6 O; q7 W; z" Q; H* ]; q" t# W+ A2 Y5 \4 s" H5 T, o9 s
ask customer [8 f$ E2 Y0 s( S) X$ Q0 }
update-local-reputation" U$ j0 b f6 a) X: I
set trade-record-current; R! f$ S8 A* B7 O( }2 Y
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
3 [) o* p) E2 ^* ?8 ]- Z+ }& Q]
" X! Q( ^4 I" i6 i, Y, M& @4 f$ J( C6 X/ r
$ O$ b1 }1 R* e2 Wset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer8 M; o% f5 Q$ B3 }7 I
$ x S# r6 b* B) E7 a% Vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ j* A" U: @! C/ E$ S+ s% H3 T* P;;将此次交易的记录加入到customer的trade-record-all中# `) B F. L) `" K& s4 h
end
$ c3 s+ M2 l- {5 z& C$ W0 v. ~' W" h
: A/ W' z2 N0 B" kto update-local-reputation4 u W; {; W: p7 n$ a) `6 k$ \
set [trade-record-one-len] of myself length [trade-record-one] of myself
@" ]* U5 q9 j, n) u8 G% M5 K: G3 m' Y6 m
, k0 v: i5 c8 s2 H+ L" k3 `;;if [trade-record-one-len] of myself > 3 8 M% a1 Y" L6 C- [, C; f
update-neighbor-total
8 C/ N! M: L: S+ G;;更新邻居节点的数目,在此进行
+ N( x3 H- C8 P2 xlet i 3, {9 L) B0 |- X, p1 a
let sum-time 0
7 c/ x1 p# N2 c, Nwhile[i < [trade-record-one-len] of myself]
9 h1 k% R% A) P& ]; n5 d[
6 o+ w, G& L% j7 W( |set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )- O9 Q X. R) S- o4 v
set i
7 O, L# e8 A# i8 F' y( i + 1)
( E8 J6 m3 {* z- z]
% B& t J4 [ s1 Plet j 34 L" i1 {5 }" k* r
let sum-money 0
% ]% R) Y3 N% k8 P5 {1 U+ |( `while[j < [trade-record-one-len] of myself]* D8 u5 q5 U p( y( {3 p0 j( J- q
[- |& R! d: u' T2 q ^
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)
3 T; C) Z1 D! dset j# q- i& _# ] @+ Y* ?
( j + 1)8 `$ a' O9 ~8 {4 T
]
) n4 s- B8 J: c) h% i, q: xlet k 3
+ x3 {' d7 M& C6 N% a! ~% s& j3 [! Tlet power 0+ X% n) E$ N( Q+ p0 ?9 F
let local 00 l# _+ Y0 U) I' t% ~% q! t
while [k <[trade-record-one-len] of myself]1 @0 H! s$ u! E
[ Y- K' t& h& ~. V4 s: _+ h. w
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) 9 w+ U/ N/ Y! @2 t q1 j" p: D
set k (k + 1)4 Q) d: U% Y1 a* T+ F/ L
]
0 e. v0 e# j5 ?set [local-reputation] of myself (local)2 T% Q8 r! e* K$ i+ ^; t7 I7 K. H
end) I L/ k2 R6 ?5 s" T
4 K& S/ A8 ~ X d) vto update-neighbor-total$ J: y% P" Q( k4 \; J9 t" Y
a, \: N- n) s2 g Fif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
6 c2 ^( e9 G% ^
0 U8 z9 D1 S$ b5 Y l5 |
- q% R0 C. q0 H9 l7 R v, [end9 T. b2 _; E/ _, t. L
+ u( A$ B& C( U+ S: yto update-credibility-ijl 3 g8 v: V7 [# u1 i- R
s' K5 s. t& q" M
;;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。1 H7 y* @- L' q, x8 Z) H7 F! M/ x
let l 0
; U" G2 W7 B7 J" E: S" Lwhile[ l < people ]
$ r/ `7 Z0 a9 t! i& |5 u9 V;;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- {; M9 f( M7 [5 U6 L* {
[/ s) S5 Z9 z4 f% t
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% Z1 Q0 t" g5 ^. @+ v* oif (trade-record-one-j-l-len > 3)
9 j; W z2 n/ @3 ]1 f4 D3 j[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-one6 l4 M) M, L9 M* G$ {/ A# c
let i 3
& W1 w! g0 [( q0 n: m' a/ i1 ulet sum-time 0
& l0 [2 `/ W* U3 _" q T! u- W. @while[i < trade-record-one-len]! J$ e$ z( n l7 ]: d% M- `5 H% ]
[* e8 Q r, u5 X: e
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
( Q$ R' ?9 V& U4 B4 }1 W/ E1 Oset i; o, `3 d! t" G
( i + 1)
( ?, N8 I* w8 d]6 \, [, P( k: c+ T) j% e
let credibility-i-j-l 00 O' [3 I/ d; w& I1 G
;;i评价(j对jl的评价)0 r1 f2 c' _: \: a
let j 3
4 D! L# O S6 Clet k 4: {- z$ y6 W4 y' L' f h
while[j < trade-record-one-len]
3 j2 ?2 ?2 b3 ? C7 w[! F; D, J9 [( G9 J* l4 h, t
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
9 Y, {4 g( S; d/ A4 A6 T0 wset 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)
% {! O& S' R; f: wset j
|; O" D" [0 }) f, z( j + 1)
8 W0 Q. k, P/ a# Y% m]
% w6 G; m; A& ]2 D( o6 Z! Pset [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 ))! a0 w% t7 k! U4 T7 ?$ k9 Z7 M
9 r, R( K) ~' b" Y; O
& K* W e5 k, t( X# `let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
% O4 D; n/ x4 K/ Z4 ~8 a4 T3 V6 ], P+ o;;及时更新i对l的评价质量的评价5 m1 j/ }$ G; ~) p: K& D5 N* i
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]$ v! V' |& K @$ \: B$ o& K
set l (l + 1): k- l6 \& c/ Q% T6 @' X! j
]) Y; O( _2 h% @5 P8 R
end( k, o$ q. x# H6 d* A9 D
! ~* T8 d0 R1 J! I8 Lto update-credibility-list& s& ^! i |- }5 l, G/ _1 k
let i 0
0 _: T2 i. l$ `/ u9 h- t" Ywhile[i < people]
& ^7 r8 F# N9 }" D) V7 w, L( o[: {% o* I! F. n, P0 D3 Q
let j 0
8 J# c) a" N0 b( o8 ~, plet note 0
( H* V" y3 `: b) B |let k 01 d" s- a* w) n7 |" A2 \$ |- u! J
;;计作出过评价的邻居节点的数目
* \7 c7 @, n0 gwhile[j < people]
, g- L$ L" M: C: ^4 u[# d5 [' w7 ]" \* l
if (item j( [credibility] of turtle (i + 1)) != -1)
+ w' R! i e) m8 u( T/ V;;判断是否给本turtle的评价质量做出过评价的节点
7 t' l! a! v% e7 E% G5 U[set note (note + item j ([credibility]of turtle (i + 1)))
6 g! {" n+ W2 ?( `& w: ^;;*(exp (-(people - 2)))/(people - 2))]1 B' o4 d4 Y: ^5 q! ?3 S% F
set k (k + 1)) ]) }# [0 x- c" s$ P* U
]1 d4 q2 r/ C, C$ I2 E! u
set j (j + 1)) w q- f9 M8 W" Z) q& f
]
+ D. o4 D8 `2 Z1 B3 ^# \- s, oset note (note *(exp (- (1 / k)))/ k)
* G+ S+ v0 l: {set credibility-list (replace-item i credibility-list note)
9 O5 p1 L w( v% V! Lset i (i + 1)
! d5 R% i5 ?# @- a$ ?$ K# q1 u3 u]
: d# W9 T. I& g4 c1 _2 Fend
' E m7 T" ?& I! ^
/ J V' l# g3 ?to update-global-reputation-list. ^, M' ]9 Z2 J2 T4 L( T! J# d1 s
let j 03 A) V* _1 \# a) [0 u
while[j < people]
4 K4 Z$ t- U$ p3 j: W6 x[1 k4 z* d3 l8 `, s* L7 \
let new 0
$ d5 Y+ l+ p/ I# P* T;;暂存新的一个全局声誉7 z- ~5 D D0 ^2 j. V
let i 0
) k* T S- k9 W6 A8 mlet sum-money 0% K, O. ?. E" r
let credibility-money 0
2 H0 V: O5 H1 n- |; fwhile [i < people]
3 r8 I, U p$ f T[
, g l4 v6 X/ c* `0 |( t6 uset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
0 @( x/ y5 @5 }' m& pset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) m1 v r6 s6 Y Bset i (i + 1)& t# A0 u h4 }
]
/ _9 }5 k( e y: {' ?3 V7 V' [: Qlet k 0
% w# w' |( I& z! B* t' e3 J ilet new1 09 m! i5 i7 e" N) ? F, q
while [k < people]
: L; F) m4 I* j2 j[
5 }& E9 \- A1 cset 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)
4 V& y' S$ \9 M' H7 M+ mset k (k + 1)
; J3 v. i4 T" I( K( r& C9 p/ D]9 F7 }6 b# }: `1 ^0 M' z
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
+ u* X: v( [ iset global-reputation-list (replace-item j global-reputation-list new): n+ C9 V) k4 j- i7 \+ O6 ~
set j (j + 1)* H; W2 S$ y Q: K6 {
]# W! `, l) w n( U
end1 K1 c5 ^7 o2 e' j
9 d9 L! y" ]% o- e6 [/ L9 D
* K& t$ m0 N5 `' W& k2 _1 c a0 I1 y5 y' Y& w3 P& m
to get-color( d [# t4 z& M! _$ _' F
) N6 b1 n3 p; v6 {set color blue
" N4 S* i) _. s, c2 b1 g) g% Kend
h8 L5 x7 F. x d3 i7 b( O* k, O" t' Q$ {$ ~
to poll-class
. O5 j5 g" P+ s+ r, q" J' Kend2 p2 P8 N& Z; Q9 v# p
2 a. l9 v+ x8 @( O- ~- M0 gto setup-plot1
5 d+ R4 Y9 q8 p1 V3 [
7 j1 u: n' G9 O5 qset-current-plot "Trends-of-Local-reputation"0 S6 o2 U- o3 P. W: C7 C- R
8 Y" g1 I; a& p6 y" A- k0 nset-plot-x-range 0 xmax% K9 J0 }4 u4 ~, y+ e' z
) N) c5 Z# o) ]8 g i _: _
set-plot-y-range 0.0 ymax
; D' n0 G: `% E8 y; j. @' A+ C4 Lend
4 A2 Y; d+ [# h( V. }
% E( c5 U4 H F& `to setup-plot29 I0 t, F" [- g: G2 ]/ T
. H" Z/ M$ E' q( a9 Z) b
set-current-plot "Trends-of-global-reputation"$ M5 E3 i- B; d! M8 I. n/ z8 l. Y
0 T# [* ~. X5 K
set-plot-x-range 0 xmax! n8 X$ I1 q# w- U' \
0 g; m4 ~' z8 S( D
set-plot-y-range 0.0 ymax% u: @- |6 x1 ^) K
end
6 ]* X1 t1 j6 D0 |( V8 ]( H$ B a! b- ~' g5 p: f7 f
to setup-plot3
! I1 u) `" Z2 f% G. ]5 h0 q: m$ K7 a2 Y U
set-current-plot "Trends-of-credibility"
' f" z, y9 A7 ?2 o( U% [, p0 G1 p7 t! j6 c
set-plot-x-range 0 xmax3 l- L9 M( B: Z& \7 K# `5 a
- C" m( t! S( N8 _- h% W e2 q% ?
set-plot-y-range 0.0 ymax
5 S+ M6 q. h! P. r& s+ mend+ M4 {3 v% m* v9 B" r7 l! j
1 G% O" z9 l$ X" O) l& Ato do-plots0 U# i9 ^. q" w" J8 @+ Q
set-current-plot "Trends-of-Local-reputation"
, E2 w. f) q( C4 Wset-current-plot-pen "Honest service"5 m X8 x( X( _& Z0 p
end
3 g* S8 a& V1 K( R; R: | l; M' N' E, x) U2 H
[ 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
|