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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 F M* r9 o! N* S+ Y( k. U
globals[
; Y2 g: M6 v( F: j3 y3 ~2 Yxmax
1 r) X' z+ `% }' [: b; R- ]ymax
0 \% m% T& L& `; I3 M1 Q4 uglobal-reputation-list1 D, {- f3 J9 _) H. [. J( y
! a. ]( O7 z9 V* ]* ~% n
;;每一个turtle的全局声誉都存在此LIST中
- t3 Q z' F% fcredibility-list
& u$ ]- `" K% K1 Y;;每一个turtle的评价可信度( n! n) ?" K( o7 h- t6 I
honest-service5 V6 ^- B' R: n+ @
unhonest-service) h- S- P6 {2 z" @- Y$ I$ Y
oscillation
- S! y. d6 l$ zrand-dynamic
# h) f$ P- w- ^+ S( ^]6 H s5 W5 \2 K/ V
5 i- G& q! ], S( h n aturtles-own[0 M) g/ e8 V8 P+ ^
trade-record-all
! x F6 `: C l- M& {) B;;a list of lists,由trade-record-one组成
. C/ c4 _5 m# }1 Ltrade-record-one
: N5 o% [) ~+ b- Y;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录$ d% m! t! P: @. _2 g. \
7 s, _* y( v. R; `! k;;[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]]
/ E ^4 u6 m9 R3 i3 v8 R& d( k& c6 btrade-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 w* |6 U4 s3 B' |9 Scredibility-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! c' W8 G$ [6 N, \. T7 M* y! v8 p
neighbor-total8 @! r% q) e" e% @5 ^/ h
;;记录该turtle的邻居节点的数目
5 Q! m' e @& g: g+ Ftrade-time! R4 v/ k; d8 g: j( o7 {
;;当前发生交易的turtle的交易时间
3 x! H; C6 E5 h% A8 g3 ]appraise-give/ _6 G, { K7 }, K3 b" _
;;当前发生交易时给出的评价. X' d ^+ R9 ^3 O
appraise-receive
' \. z9 K5 p2 O3 Y+ U1 i# ~/ X! O;;当前发生交易时收到的评价
) \$ L* g$ m: Y, s9 rappraise-time
2 I+ q# l5 I6 `6 N;;当前发生交易时的评价时间
' T8 o, I2 M) Y- o& j: P; Blocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
; Y0 _% l3 f; a0 Gtrade-times-total% f' {5 X% k% a0 q N$ w9 ^* [0 C
;;与当前turtle的交易总次数, I; _2 j2 B0 n1 {! J: U
trade-money-total
# y2 ~. D9 f- e; Q* [;;与当前turtle的交易总金额
8 W0 |+ A' D6 q0 Xlocal-reputation3 ~( J0 L: s: L: c/ P
global-reputation
2 Q2 T% \7 Z4 P/ F+ b' J+ Lcredibility
/ W m9 Z6 L- j1 W;;评价可信度,每次交易后都需要更新
" P& ]1 W( n& ~' V3 fcredibility-all
' J* C9 q; L, A- S; ~: H( {;;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6 x& m2 F: N6 o* \
M" Y% q. E% n1 H0 P
;;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0.58 {- T* {- J- q B) n$ N
credibility-one) o- M# F( j$ t) }
;;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
! I: K1 u' O6 k9 aglobal-proportion" W/ Z2 [( j# d
customer5 t$ h" k' q% o( d
customer-no
( p) R1 b0 D' I7 ^" D/ Xtrust-ok
$ M- n; S8 U7 B C* F+ ktrade-record-one-len;;trade-record-one的长度
2 W& m) Y* d* C; @. K9 \], @) m1 Q/ [+ g1 N7 X
- w- R& Z% y2 E* m;;setup procedure
, q$ v' b# ~+ l7 a% \: u
+ U7 }/ D" Z0 Y# O! B9 ^to setup
3 }9 u p; V0 n' r/ a
5 I, o7 ^8 t, o1 Hca% w4 g/ j; g, D' t
% w+ l/ p$ ]) R* f/ B1 v
initialize-settings
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crt people [setup-turtles]
) G/ H. p3 d% j
& @( l9 R" ^+ S5 Jreset-timer
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poll-class
3 p0 l& R; v$ ~7 n0 a( }7 e: ?, O% J. J6 Q; r, c0 K* l
setup-plots
4 q8 a- m! ~' i8 s3 w% h- L: D" C4 n8 g. r9 _: Y; P
do-plots8 p1 r7 b7 ^; L7 K
end2 D4 F3 A5 x+ v9 s1 V: z
2 h A6 F: Z0 R2 n) Ito initialize-settings
# _' A, F; m/ O/ e; y! F0 ^5 z7 R2 |) w: l4 o
set global-reputation-list []
# ]' T" v( m( X; q" P2 o: t: \0 @+ E1 Z4 }2 e* |( P
set credibility-list n-values people [0.5]
' e# g( o$ A$ U. f4 n
7 J0 {. g/ y( A- m- rset honest-service 0
+ E0 a5 u8 `4 x0 g8 k' l7 }+ `. N, |" O" I) `1 W. J
set unhonest-service 0
' ^+ K( F/ B' N8 l" f
* J: f3 @$ p# i A+ K4 a/ }set oscillation 0" F8 C4 e( @" r$ S* o
( \# E, z" D2 }8 u: \$ g1 r) Jset rand-dynamic 0
9 D- @& k6 D3 z Nend# U: N$ ?+ n; `& B' s
* j5 V1 I7 u2 i: n7 z5 _# i
to setup-turtles ' Y+ \2 O$ s* P, ~& a
set shape "person"
/ i# `, y, A2 w' t+ qsetxy random-xcor random-ycor
. y% [+ ~ c: O2 K" [set trade-record-one []
0 }( n3 e/ y \* e4 w
5 \/ y8 i" \6 h% j: v- H$ L1 zset trade-record-all n-values people [(list (? + 1) 0 0)] 6 o8 [) q1 Q O, c% ^: z
7 _ v6 v$ Y$ f5 Y' H% u0 p& n
set trade-record-current []; |- l4 `& |( k+ j
set credibility-receive []
" h: z _4 d4 q1 n: c2 E4 i, aset local-reputation 0.5! c1 b( W7 r. M. j1 e6 z7 \9 K
set neighbor-total 0
~ d! v! d2 A7 i5 N( D! F9 W0 Cset trade-times-total 0
, L; G$ d; f; N6 P& l/ r( Mset trade-money-total 0
" n |% D7 ~) p& @set customer nobody
( C$ M7 v' e! |: l5 Z! iset credibility-all n-values people [creat-credibility]
% Q( R. a6 {, V! ~5 Zset credibility n-values people [-1]9 x2 X& g& t4 H8 Q7 o
get-color
# x' p* u0 Y8 V& T
5 N) _* @0 g# c+ d$ ?) o/ pend9 ^( c4 D9 j7 m# N. h, f) T W
e. { j; R1 m, N2 w( {1 yto-report creat-credibility
& X1 l$ n1 U0 \9 H" B! Ureport n-values people [0.5]
1 a0 M4 g6 A. b; K1 K& Hend1 q8 W# a% H4 t* Z0 F% R4 h
, ?7 c9 }$ m& z# ito setup-plots
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4 i3 c% a; G# d0 b& m% Cset xmax 30& D' b2 f5 i- _4 z/ I
) I9 |* h' W- \ t- P# M/ C
set ymax 1.0
( D: \$ `3 n0 O( K* V1 h/ x5 ?: g
% o4 b& G2 T7 x! ~! Gclear-all-plots
- y1 `' E* n9 J2 w
8 E; B( {! o& z% A) ^7 E1 Isetup-plot1
5 _( z4 u0 k$ a& Z& V4 { r4 l
I4 i) z7 c: H1 A$ B4 K# X- Isetup-plot2
( I; d* l) P- P2 O, x1 |+ X6 p6 @* a' ~& m) H% [
setup-plot3
9 U$ j+ |" n1 c; s# e$ Nend8 R5 J J3 w2 I+ E4 a4 K9 e+ i
. \$ E, d) q! M# z6 Q0 W
;;run time procedures
8 _" F4 Z! k- k1 c {9 G1 w
/ r: F: w* @# rto go( j! a& j* s: [; ?
3 s2 A. D" m2 B3 r/ z
ask turtles [do-business]
4 \ x7 i4 r& Y8 Vend {* z/ p5 s5 d9 W$ K1 h+ I# \% @
1 p2 ]/ q# l; r/ uto do-business b2 W" G7 ~+ I1 \4 q
1 P/ Z# R9 C5 {, D: z7 Y( f) C/ N
5 K% D: {1 |. p E( k, j3 qrt random 360
2 c7 Y& @, x+ c7 x' `6 y% n9 H& j. X; e _3 f/ o, u" J. x
fd 1
# E& {9 m; e- Z- y, A. u
4 i8 R8 V9 D8 I& @ifelse(other turtles-here != nobody)[
- k+ P( |7 W# n0 H! B( h# O6 \ ~ \9 E1 O( v. w% x, a
set customer one-of other turtles-here6 G8 z; {; a# ^
7 A6 J& a$ }& A% D;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1): q: w& m9 F0 n! J0 a( D
[trade-record-all]of self
7 E: p* z4 k: t+ p+ w: h* Z;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self' J9 {" O. m/ H0 ~' K+ o
3 @4 a- Q' t) j6 `9 d1 Eset [trade-record-one] of customer item (([who] of self) - 1)/ p. D# p% V" M" C
[trade-record-all]of customer( K( S3 D. D5 Q: M* c& Q; s
1 |& B! q2 C2 [- b* O9 l
set [trade-record-one-len] of self length [trade-record-one] of self
% h+ U% L2 C9 \2 O9 }2 ?
; r0 F# v6 |9 Tset trade-record-current( list (timer) (random money-upper-limit))
6 r Y9 }. _, v. A+ r' n) d: s0 N/ N5 x0 d6 J, R; r B
ask self [do-trust]2 ]/ h- n6 } w3 Y
;;先求i对j的信任度3 w: ?% g. @& Z! h- k
- W0 E2 b R3 ?% ^if ([trust-ok] of self): w! A- O. n" z' } ?* b6 f5 O
;;根据i对j的信任度来决定是否与j进行交易[
8 B7 x' X. x" B4 x$ E, M* K: L! O Jask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself2 K$ o5 ~& [2 u5 U
8 ?9 q' s" _$ l2 h9 [0 a- L1 s) g' b[
- M1 v4 E% U$ w' Z! D
# F" ?% j2 \! P. qdo-trade
! P4 n% s4 L+ a# A' ^+ l4 t/ E8 v; N) T$ e0 ]- j
update-credibility-ijl4 E, @! M; e0 k& e# t
9 R2 ?- k) q( s! M1 b
update-credibility-list) w+ ^7 d# p) e2 X
) @; y e2 b1 l6 S# F' q3 X
9 @" R& O% X$ J$ v0 `# z' {( b$ Oupdate-global-reputation-list7 h8 v* ]' a u8 k5 |" `
7 \) [2 w1 k, {9 l. H
poll-class' J: @4 e) @: }0 J
4 I. B* P5 d, P [3 {: D+ n7 W
get-color/ }& D8 ?' |8 @, _9 W' U# ]
1 D# p) [2 N! T/ k/ I7 r
]]
" ~; c$ t7 w Z4 P* [, {6 C$ H2 E6 f
;;如果所得的信任度满足条件,则进行交易
$ f! ?% w7 S7 G8 K6 f8 K, v9 \
* }, {5 A* J# a5 l3 ?[, A# u) g1 U& z# {; R0 V
( t* [: u [' I9 Hrt random 360
/ j1 r' {0 X% w' ^6 J) x* s) }1 C( R
fd 1* |; v4 @ q8 e8 w% ~( H
5 M! o d' t. X' `]6 @& P T* Z# I. k. i2 T" H1 P, c
9 \6 b. d, i4 b% L) _% u9 v
end
, f w1 U: D$ P. D9 k2 M! T8 e8 f, V/ g3 g2 o- i
to do-trust
1 S/ I8 C/ H$ s! _& w, yset trust-ok False( f) I2 n1 y/ e* {0 b4 t1 V# l
( b9 N$ E; z' z' w$ p$ a2 |$ l
% Y, V% R: p& d! K* Z
let max-trade-times 0/ P n) B/ t: ?6 }% {: b: f% p
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]* b0 }9 j3 b6 a$ Q- E+ U: ~; B; ?5 S
let max-trade-money 0
/ {, g0 ~. W5 G; e. S1 wforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
" ]6 g1 C% G9 i/ {( R. H: ilet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% [2 |; b" @( z2 y
: `' ?* _" |2 N4 s& I, _2 J7 C( R! b8 y' ?$ u7 L
get-global-proportion
) _0 {! E9 A6 B2 m, |! y/ ~& Nlet trust-value
+ ~- o, o& o! [$ ^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)1 Y% N" x* a9 W: D
if(trust-value > trade-trust-value)
# ?7 D6 }3 D. Z! f( F[set trust-ok true]
; V6 C8 q0 M% B( Wend
) d( X; O* X5 J g$ ^. F! I, u/ u! f/ p% y+ f8 f
to get-global-proportion
8 V2 x Z. ~) ^; M5 s9 L% F4 g2 Jifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)" Y: k- p( m3 A
[set global-proportion 0]5 P2 S, z, @- p4 q0 T
[let i 0
* W+ Q% P0 A. t8 y' L( flet sum-money 03 G. }3 E: @: e2 z- c% [/ ]
while[ i < people]
1 a% h$ L; N! `: l8 Q[' Y! |6 [- b- W+ B+ B0 k6 U
if( length (item i
: q4 V' t+ ~9 ^7 N8 K2 m) H) @[trade-record-all] of customer) > 3 )
; U( C" N1 {/ M2 J; s, V, C[
8 ~8 O: g( b2 @: t2 nset sum-money (sum-money + item 2(item i [trade-record-all] of myself))* j* h9 N# F2 x7 E: Z
]# a, M0 Q" Z( X7 r% P) a
]
5 `! X8 t( t1 f" \, M6 L$ mlet j 0$ l$ U' f* U( l5 l9 N
let note 0
3 d3 a7 V: `+ g; }5 c4 B9 `. b8 T$ Uwhile[ j < people]* a* \) c0 e6 ^, w: a* A: p' H
[4 _. [7 \; j% F/ r
if( length (item i- }; y) u5 T0 m* B
[trade-record-all] of customer) > 3 )4 V/ J. m% E3 a( M* y
[8 Y" m L t( O: f5 T
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)3 }" X. z5 Z3 C) E
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 m! ~4 V' o- l: |) ?* x
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
0 Z v2 ^! ], ]: T]
3 T$ N) T+ P, [* {]- ?6 y+ l9 l4 W6 M' ^% T6 x9 E0 h* f
set global-proportion note9 b0 B3 u. _8 W( z$ E6 V. v- C
]7 b! B# [4 X) P! P
end) [/ Z* G% }5 @2 }, e; o
# u$ k/ H+ P2 y
to do-trade
% g8 M" E Z1 z9 x;;这个过程实际上是给双方作出评价的过程) I* x1 o B) l5 j
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价6 i' D2 o# [( o1 }4 {+ G) Z4 u5 d8 i
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价+ J/ L% X7 G5 y* \
set trade-record-current lput(timer) trade-record-current+ z8 d" z0 g* Z4 z
;;评价时间# b7 ]" m( q ?5 s
ask myself [
: H" ^- ]! e* \; ?! C* vupdate-local-reputation
$ F5 R7 Y5 M5 j; }5 G7 \- @! jset trade-record-current lput([local-reputation] of myself) trade-record-current
2 U" a( w; k4 B4 U% ^! x]
* R& k k9 R. v2 ~set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
2 F$ ~2 L1 ^* y- o, V) ^# c X;;将此次交易的记录加入到trade-record-one中* P9 O) i9 T5 e) H* ?! O7 y
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 \% c1 @/ t, S- m4 g' \
let note (item 2 trade-record-current ) z( |, |6 k' b, l1 K/ k( _; z4 J
set trade-record-current
: I! f$ v/ b/ A! Y$ @(replace-item 2 trade-record-current (item 3 trade-record-current))1 {$ w4 T3 m( z. G/ |0 a' e
set trade-record-current6 c' E' P. `3 N8 ^( n5 D5 X
(replace-item 3 trade-record-current note)
7 p. \$ ^3 E1 f. o0 N5 E+ z' j, O2 H! n2 L6 ?9 p8 g, B
8 L+ \# }- G3 Z0 \& {5 W) Z* D: h A% Zask customer [
# T% L: e4 a8 Q; t8 a) i# ^2 Pupdate-local-reputation
! p1 ]$ c2 y3 b R* i& o* xset trade-record-current4 n2 A( l" L; G# x5 r
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
: l# ~% o! D: d' i% x* {]
3 \: d. L a7 t9 Q+ U
- G1 O, U- F* O& C: O. s T! X0 n; R0 F. b& _8 v; _
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
' a& U4 g* S+ @! B% b3 q; K% t/ K1 v2 D
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
: W, i' J9 @+ t" P" B. r;;将此次交易的记录加入到customer的trade-record-all中
) Z, m( q4 ~: ]4 p1 V" @. e) |+ r7 }end4 t0 H* b6 A( ?% c1 |
" \. ^) d' y. L6 Ato update-local-reputation( x. w2 O6 y# X' D m0 F" z4 ~
set [trade-record-one-len] of myself length [trade-record-one] of myself" j; H; R; R {( E" k
2 {2 q4 R5 Q+ y+ h& ^1 X
7 Y# `7 v$ `; w& w;;if [trade-record-one-len] of myself > 3 4 }$ Z- p3 {2 S% k' c) W( P
update-neighbor-total
& a8 T5 j8 C P4 x. m;;更新邻居节点的数目,在此进行 V2 s2 w4 a, {
let i 3# T% k1 x1 E& h
let sum-time 0
1 N: D) I& p. g8 V. o9 V; u- `# Wwhile[i < [trade-record-one-len] of myself]& f7 U* d1 m# s+ ?
[
. z4 f) v! F" ^set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% R0 h, n" M: Mset i6 K0 c) y# s: p% ^1 \. }
( i + 1)0 z0 U9 M' s# ^9 Z3 ~! }/ p
]
3 Q5 |( @* p clet j 3
: w& C; L- ^) L! Z( v4 |let sum-money 0
4 w$ W5 n6 `, M; P( y# I( W2 q. A/ Vwhile[j < [trade-record-one-len] of myself]( e6 D" e g$ U7 m5 n) q* c" n
[
}, _+ q5 W9 rset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
! E- f8 c7 p$ l8 g. Dset j& U" Y/ @# ~5 J. v
( j + 1)
$ q G3 [1 w0 c# x, K0 M- r]
1 a) V8 I" H4 T0 p, Y; s Xlet k 3
' g) A' U+ q9 V6 P, N* Ilet power 0
) w* j/ o* p) |8 Y: x2 u" B0 ] qlet local 03 a6 P; e" M! V: a& P8 Z
while [k <[trade-record-one-len] of myself]) i9 s: M2 i1 o$ M1 w) `
[
2 j+ @+ H* l2 y5 Q x6 G: cset 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: V1 P L* H, W! tset k (k + 1)
! K4 e; D ~" P# Z& G] y' K. h2 Q) C# o
set [local-reputation] of myself (local)
) C W P5 E. G5 K) F1 b2 R7 O3 Nend
4 r4 c3 \! ~, B3 ^ n5 V+ `2 ?9 F. p2 {
to update-neighbor-total1 P' f6 u. Z4 F' D- G" D
3 X. w1 e: h( r& P+ |9 @
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
9 ]* N# @6 H! f+ W, @2 Y$ G: X7 i! l' V' {% `) L+ M- v* Q
& W/ h* L3 W* |2 W% b9 W: wend3 V G+ G" L0 X1 d3 n( F1 D
; d' E$ B" S- y& E, y4 r! d
to update-credibility-ijl
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+ }) G! o. J8 Z2 V% F/ [;;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。 @/ h, } ]8 n; ?% _/ q
let l 0( m z6 u6 F) d3 g3 G
while[ l < people ]
# k4 b4 W9 R1 V8 J;;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)* S0 X: P/ b! S! {* r
if (trade-record-one-j-l-len > 3)
! L$ U: m3 v# |$ ^- o[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
- L4 F3 Y# z5 e9 ?let i 3
/ P$ [+ P8 g* \. ~2 W/ Q0 `let sum-time 0- m0 ]* h B& g" ^2 m
while[i < trade-record-one-len]
% B8 {( C8 J6 B' T[* X. Z9 O' X* \. t% K
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ) P) _+ x$ ?2 J6 o4 m
set i# p% H' {( z8 l3 M7 h6 a9 h5 W
( i + 1)
2 S4 A# r, ]" Y( J]5 `" S( | o# j; i2 V
let credibility-i-j-l 0( J! c9 I. V J8 [$ ?+ k' n
;;i评价(j对jl的评价)3 D: W0 |4 J# v F2 e/ ~, Y
let j 3
6 H8 ]) S# Z* Y2 olet k 4 y3 I& W* @1 ?1 b
while[j < trade-record-one-len]0 X$ e* P) z5 X; d
[
8 W% | \$ d9 [! Y( {3 g1 Swhile [((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1 [0 g/ G+ {' ]
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)
8 E3 X) b( z+ A$ Mset j% v: u9 E$ f" ^% q! {# E; }6 p
( j + 1) n6 _1 S5 m, I) h# ^
]' `8 l' l' _, R( ]& B
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 ))8 H ]4 k& k" j n( k& R) M v! s n6 h% B9 }
1 i; ]& J2 y, W
& ^5 T0 L9 T4 v' p2 qlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))3 q6 t$ L; ] S, ^: Z$ _+ D
;;及时更新i对l的评价质量的评价4 x4 F/ a* m( y
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' i8 O9 |/ f, o" R1 Oset l (l + 1)
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end
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to update-credibility-list
: u1 G+ p3 Y# ^* ~% blet i 0- N9 j7 N4 @: _/ R* B: i
while[i < people]
$ u) c+ l) j- _+ k0 Z( K* J) c8 Y4 C[
! F3 G% m( C3 L$ Dlet j 0
+ n& K, ?; b/ {1 {. _! elet note 01 d8 D3 F7 j3 W8 b
let k 0
- a; ?8 g R% B8 E( l, t* H;;计作出过评价的邻居节点的数目
4 K: S2 t* w9 r: O2 W% \while[j < people]/ B5 i- N b/ i' `6 ~
[
& M6 E% B2 F* ?9 B/ sif (item j( [credibility] of turtle (i + 1)) != -1)
* |4 t6 p6 i N;;判断是否给本turtle的评价质量做出过评价的节点
5 u$ E5 o2 \9 y/ V4 G[set note (note + item j ([credibility]of turtle (i + 1)))
. U* c8 H( P1 ^6 J( s' [;;*(exp (-(people - 2)))/(people - 2))]
: ]1 p3 Q' K2 q; N. b2 ], cset k (k + 1)
% d. w) h1 P0 I ^]7 e: K# S- J' f7 v4 O5 n
set j (j + 1)
6 ?% b8 W" U/ x2 M/ z; e" a7 []
' f, H7 c* w, @' O. O6 e/ w) yset note (note *(exp (- (1 / k)))/ k); ]. v0 d8 u7 l4 R8 U
set credibility-list (replace-item i credibility-list note)5 L" R: {4 Q$ T% A2 H; A4 I
set i (i + 1)/ A5 P' P# `, r5 W" m, T5 A
]
- `" @* P- V. M$ X! iend1 e9 |+ L' X# B) Z( r& S/ H
9 d1 e& M4 F0 y$ fto update-global-reputation-list
+ `0 H& s: B6 S& P; ylet j 0
; D [' q$ a( ~while[j < people]
% f. O8 f; C, C8 w[6 e4 ?0 w, w0 t$ p. m
let new 0
; }0 m6 z7 b) ]: ? O( g L" F8 _;;暂存新的一个全局声誉
% v5 ^, @5 I! F: W& b7 W2 Ilet i 0
$ O; R; `# v' w* c' a3 R8 C1 Y# h+ Ulet sum-money 0
8 Y& M4 _( n* C Y3 ]8 Nlet credibility-money 0; H# A; G& `- m+ x$ b! n
while [i < people]
; M, I" ^" Z) R' j! f[
4 x# q, U" V' }4 d4 ]2 r5 Rset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
$ D6 `: q' d6 W% B( Vset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))+ o1 c; {& N6 I5 K% e
set i (i + 1)8 r$ g0 p5 L+ E4 d
]
) ]6 k8 z1 A# o$ K6 llet k 02 c' g+ D1 P$ I3 r5 B
let new1 08 J/ E' g/ }9 c4 x9 X( p9 s
while [k < people]
* C6 Y V% F$ K[5 e3 I) K( |5 |# _
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)
5 i8 V8 L4 o/ V7 A# {1 kset k (k + 1)( {6 D7 s2 l# Y) l- k
]* d* c, z% o( C. p
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 3 R5 _' x4 I1 g) P y: x- ~9 g/ z
set global-reputation-list (replace-item j global-reputation-list new)
$ Z9 s- V+ [, k& N0 U/ a1 gset j (j + 1)
& x3 f3 t5 t! X: y, Z2 a( L]: L% C3 X9 T% y7 D% O8 j
end
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2 m! z" g2 t- e. b0 x, ?
: ^+ }) I% U: Z% e7 x# qto get-color! d# j) } p! k, e) g' m- M$ X
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set color blue
S7 D; F* H5 }, G; G" T. rend
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to poll-class
+ i# ^7 ]% z! u! _end2 j: P/ x: m6 d" U, E. ^ ]7 I0 C+ I
% k. `) c: \& W0 kto setup-plot1
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1 f7 f; A) Y% i$ ~1 y0 |1 T' ?4 u% gset-current-plot "Trends-of-Local-reputation"
8 o2 {1 b Y5 T
9 \" S0 p# T( M0 u j- |* a' zset-plot-x-range 0 xmax3 O1 Y( j, ^3 n8 M% ?0 |9 V
2 H' a. ^6 l: Z# ?; i; A, G
set-plot-y-range 0.0 ymax l- y2 n5 f$ q" D; b7 D/ z
end
$ ~. k; d) T1 m2 C2 {
/ e- t6 A4 j9 a& s% F7 G uto setup-plot2
3 ^7 N& U& Q! I1 n0 I! n& `
# @( D; s) S9 f; P* ^. wset-current-plot "Trends-of-global-reputation"# p& m. g0 \; o# l0 C: u( M
3 ]0 V6 G0 q: @7 v, Z
set-plot-x-range 0 xmax
- n2 _5 |) b4 S5 [* ]. v' Y! f2 @7 Q) X& z
set-plot-y-range 0.0 ymax
2 V6 E3 @% \6 f* yend
$ t7 D& I- W5 ^& |
! H2 C$ U+ Z9 s# kto setup-plot3
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; E$ k/ q. H" p8 Q' sset-current-plot "Trends-of-credibility"
. O( [& T7 B3 D* V( A
- ^4 k6 a$ `8 j- nset-plot-x-range 0 xmax
* G9 b, ]* k9 H" ` D: U9 t! c/ ` U+ }9 I s1 a D3 D% j! ]; o" Q6 u
set-plot-y-range 0.0 ymax- r: X+ x# o! Y6 C" \
end# i3 e, e5 p9 X% d
: A9 X+ d! D' G$ w3 F- s8 Yto do-plots
5 v; V* @( P9 @) |set-current-plot "Trends-of-Local-reputation"
7 l; V' e |6 ?0 e# ~" Oset-current-plot-pen "Honest service"( \: w( i1 g7 e+ J. d; c
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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