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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1 b( Z, a& s* ?9 Q2 B2 O) a
globals[4 j8 d- y6 U! u7 U+ p5 o
xmax
' z2 i* T I. `$ d7 V! n' w# K9 fymax& S0 f# r$ G B# s: v
global-reputation-list
; _8 p, r7 j% o1 O8 P' W6 L3 j6 ~9 A4 [ ~' U+ H6 ]
;;每一个turtle的全局声誉都存在此LIST中
" V% a, I/ p- m+ y, F: {credibility-list2 l7 p5 F: X/ U. C
;;每一个turtle的评价可信度
8 x& X& B: ?7 G, i# J$ Z3 o$ fhonest-service% S+ [: L3 e3 |" c
unhonest-service9 a7 P8 v- M H4 T8 t2 {9 f
oscillation
0 P9 q& e8 F0 prand-dynamic
) h8 x; Z2 ^& a% L1 s" l9 ^]$ ~: u8 u( D$ X+ V i% p1 y
' N+ P- h2 T; r' U3 `1 j
turtles-own[1 n! w; N2 L- m( n/ ^
trade-record-all7 D& F) J$ O" E: l8 x! a( T
;;a list of lists,由trade-record-one组成, ^0 X2 q P- b9 e7 O
trade-record-one( J- d! u3 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* B$ j4 c2 r" J, E, ?
9 _' v0 W9 @' h; N% `;;[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]]0 X1 X' e8 {1 S% ~& w
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]
7 V+ O4 X: Z5 c' u: v7 fcredibility-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* E$ v' ~8 _& C$ `neighbor-total) V4 m7 y- T( ^) Y* r: T- y' q) i) @
;;记录该turtle的邻居节点的数目
" B- n: Q- [" n1 Etrade-time
9 T" c8 U$ n' b$ ~7 M6 Z7 S6 j;;当前发生交易的turtle的交易时间& b& D/ |, z7 |# G: e
appraise-give
) q7 P8 z" |1 Q1 {5 ~% _+ f;;当前发生交易时给出的评价
/ T" S% ~' n7 }$ b: n0 xappraise-receive
9 @ M* f& t5 H6 x- z) ~5 F t;;当前发生交易时收到的评价0 u; v* I: Y& o$ m$ b2 Y
appraise-time. \" U1 ^' o6 c% d! F8 x
;;当前发生交易时的评价时间- h. q) |! k" D' Q% ^
local-reputation-now;;此次交易后相对于对方turtle的局部声誉+ p7 I# q: v" N( b
trade-times-total
% o* J8 f, {7 H;;与当前turtle的交易总次数" H6 s* \ y. w; L$ i/ i, y
trade-money-total
+ G. z {# F' _4 Z;;与当前turtle的交易总金额$ U N$ ^/ G2 S" y0 E4 X$ V
local-reputation
# u o% g* n" r" E. y1 E: Fglobal-reputation5 J/ U. N% O$ R3 w$ O% `
credibility
4 ~$ p/ V; m: d) a- C;;评价可信度,每次交易后都需要更新 G) i: f; \9 ^
credibility-all8 R1 i+ l9 E+ r
;;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
x5 F6 b$ y: |! k$ F+ q, a3 _& n
2 p) a3 [; P y0 A;;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
G5 }$ i; K. S, ~) ?; scredibility-one
`) O4 T% Q8 I" W1 o% Z( E;;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
H* s9 Z/ M4 T% A1 n' a% Zglobal-proportion
3 g2 W% u/ e" ?" u+ l8 W; Ucustomer% g5 S9 U n. x0 O d! e. w9 U
customer-no: \- b8 P: R8 G+ {( y
trust-ok
8 Q7 [8 F$ e0 r8 {; O/ O4 Mtrade-record-one-len;;trade-record-one的长度
5 V+ I4 c# j" ^4 _1 B# T. N]
2 M" l5 {; C1 L1 ?% u5 [
3 S! B" B$ \1 b;;setup procedure
2 A( Z% j0 ^# L7 ~7 s" A, S
! d X4 r! R+ Z. X. c+ ]to setup$ ^6 o% N6 G( P3 f* F- O
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ca0 I+ K: q3 n; Y; W1 j1 E* n C, X3 T
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initialize-settings
8 i2 Q! [- }5 K8 B& B! Y
. B2 o1 Y5 @! p0 b- Zcrt people [setup-turtles] D/ a' B2 O: ?. n
7 O W6 }; ]8 X' zreset-timer
- f p) ?6 {- w& X% x( G1 H) B; D3 i0 D# D
poll-class
7 @: q3 v9 K2 P$ q. o }6 n2 H, z2 ]5 c P( ?5 j; \
setup-plots6 B" a2 w5 d P- {9 z! Y; @2 X: B/ P
" ?# i8 o% D& z2 I3 i' ~/ w! I
do-plots% G4 Z* a# h; m
end
+ l/ P2 T6 G f' Z4 n* ~/ Z0 N; c1 K7 O& z& }$ A7 |: F* m
to initialize-settings
7 [+ ]' }3 ^" g! Z
! \* |% D8 j1 o1 @, x" D! mset global-reputation-list []8 E! h4 S1 j* Z2 [% T$ ~' d
8 _$ r5 s$ `5 u6 v5 S/ ^- {& c
set credibility-list n-values people [0.5]6 I& W+ G3 b- f) X
1 [6 @: e3 O# [) `; K* I5 z! t9 kset honest-service 0
. y* I) o6 _ f/ k# g, ?5 r& I8 H5 E; x2 R' L
set unhonest-service 0. r! g+ h/ M2 V s9 o, M" z3 L# v7 I
3 i# J# ~+ f7 D7 N1 c; F8 e9 Jset oscillation 0( i/ d& D, q; x5 C
* i8 ^: y' ~, @" d, Qset rand-dynamic 0
0 U- { V! [# iend
# A; l# [4 {& f) P5 p) O+ A: V. ~
to setup-turtles $ N. Q9 P9 T; m6 R: X9 f
set shape "person"9 g( g0 n0 v8 i4 N
setxy random-xcor random-ycor
" j7 ^* s" D" \3 h& i/ T# p; L) qset trade-record-one []
z4 o, F4 ^) P) d- M- u' G& q1 n, O) Q% K! q" \
set trade-record-all n-values people [(list (? + 1) 0 0)] ( P8 K2 a, E3 A- s- O4 f, z
0 d6 w2 ?* M; g, _& _) W& e4 @
set trade-record-current []* {; d( i) q& q) S% Z( w& d
set credibility-receive []
- ~2 A+ W/ p6 A1 s. L/ iset local-reputation 0.51 j, h9 d( r0 e9 G
set neighbor-total 0# j0 c" p' @ X6 F9 Z/ t
set trade-times-total 0& R6 E/ j* I. [# J; _
set trade-money-total 04 d9 | d+ N2 O+ t
set customer nobody- X2 l% ?: I% @
set credibility-all n-values people [creat-credibility]
% t( C y Z! V ^5 oset credibility n-values people [-1]
6 i9 i$ y9 a/ p$ Tget-color- D# z" b6 f! a5 V. T9 ~
: a. d; b8 l$ Q5 Q. i3 {6 T. ]# j
end
: p8 c( {8 W6 r! i) b
! g; l' \9 |( |4 v% k$ Yto-report creat-credibility
* X; {+ o( E( Wreport n-values people [0.5]2 z' _( q6 b2 w2 J+ @+ p" B& h
end. d4 W' `2 ?1 N8 A
) L0 `6 f D: e3 |/ d; J1 cto setup-plots' ]) j4 M/ o, ` w; a
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set xmax 30
- B+ Q' T/ W! u# z) J
( u7 t1 ?/ g J1 _! E' W8 Cset ymax 1.0
! f. a7 B( V7 a9 a: @/ v8 f9 z, x% J- A
- t$ a% n i* g+ Yclear-all-plots
0 O4 e2 E O- e( t' j# |- }2 C8 A% u9 h. w! y& o% d* Q
setup-plot1
& E5 x4 I& F# k- h3 f" O7 S) B& Z: Y& h2 U8 t* ~( D
setup-plot2
( G/ z7 i q- @" @% D
5 K! z. i- g2 r, L' v: qsetup-plot30 X7 S9 `, \8 [. q; U
end- h1 t0 X3 I: U' _' V6 R1 B
- Y' F. O3 i9 s9 I9 ]1 W2 X; I
;;run time procedures; v2 B& ?/ \$ N1 f! \/ K: b
& a% A. ]# R7 I( o+ ~, ~$ Bto go4 a& q$ ~' u* P* v
& G' y: c1 u/ j! T# Y% D) S
ask turtles [do-business]
! o1 N' ], B( s% E+ E! {end
& f5 I! e* \/ j9 T4 d/ q; k% j2 \: Z* _2 W3 e& J, f6 O: K
to do-business $ s2 W& D. ]: E/ B6 J
4 K g* l/ N5 S1 O0 Q
3 Z8 b r L: E. ?7 ]' srt random 360# W. A" V4 F$ O9 T0 }
( K h6 C/ i7 {
fd 1
" a2 D g, `3 O+ i2 ?
9 d# R( T. q* F* {3 Wifelse(other turtles-here != nobody)[
2 z7 S4 b; }8 x& _0 ]+ U/ N
$ F7 s7 D3 r3 Q. s0 E7 `! Y5 ?set customer one-of other turtles-here# d- B Q9 r5 b' p; |6 _5 D3 I4 N
+ f1 Q( M! T/ G, F- };; set [customer] of customer myself4 z6 r0 A. z- c. ` D4 O
* U) \" [% q6 H( `! r/ y) I
set [trade-record-one] of self item (([who] of customer) - 1): L9 e+ e, P$ a% G5 z
[trade-record-all]of self
2 f4 ]4 v# b% g6 W( U;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self, u/ t }& C; C: `
% Q, ] {7 u4 h* L5 s& Z
set [trade-record-one] of customer item (([who] of self) - 1)' ~+ x4 |; ]4 w* K9 k
[trade-record-all]of customer
. `4 f: B$ k) ~4 J ?; X2 J
9 C5 n( ]# ]# |# D3 |set [trade-record-one-len] of self length [trade-record-one] of self
" V3 P, ~# x t; {5 k! x$ d" r0 X* c( l3 _% u9 y+ g$ z; j2 e3 `
set trade-record-current( list (timer) (random money-upper-limit))
! {1 Q3 j E2 A
- f! k9 I# G% ?9 W4 D L) R* X; Lask self [do-trust]$ H q* c5 n' H6 p# R. [
;;先求i对j的信任度
$ S. S8 D M5 k3 a" R, F* B4 j2 D! H% K& l* r
if ([trust-ok] of self)- J# ]8 D% n9 P
;;根据i对j的信任度来决定是否与j进行交易[0 j4 c5 I) L0 p H& m; R9 n- Z
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
6 u8 b/ ^% N! l4 d: `3 ?- W6 E) Q: X* T( D# j# n( G
[
9 `) E* o1 t+ J- @$ H
/ a; D' o2 y4 @9 q. p3 N0 Odo-trade
8 {% n: \$ d G `3 X
1 v9 b* y' i. Y# r1 A# ?update-credibility-ijl0 C! [' _3 |( K' ]! t3 Q x
, T7 z0 t$ w) A8 w
update-credibility-list3 `- G) T) |( C; u! w+ D5 C
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update-global-reputation-list
, u9 R) c( e w
$ E3 O0 N; R/ M Spoll-class ?" g0 d- d1 [: l) B1 A+ x: ?* B
5 ?/ ^. x2 e+ Z2 u5 z/ Qget-color# f& s% A- F4 C
. Z8 {, o! [4 Q' }( z
]]
( j5 `) f9 i, z4 t0 J- P4 h) w! C/ V- g9 e! S, D& I* t* z
;;如果所得的信任度满足条件,则进行交易
9 A5 M, B% z4 l" x; ?; `4 {: M# ~# c9 [) D& H$ E
[
8 z- @- D3 b; r2 S. L( c" F% @& s( F# y2 A' C/ r3 g: h" z
rt random 360
) m$ u( F. `2 k) A) f2 `: h6 ~0 j/ d8 d s9 m4 Z( }
fd 1/ S& e6 J& G' c9 y$ K. s6 i
* k) O) ^# \5 X2 c) ?: t
]4 R- `+ D: L. J5 \4 D* ]0 B8 q3 \- S) b
. L# N4 `' p% t2 p4 j5 w _+ o) tend' `5 J& A" j* H- W
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to do-trust 3 v0 |* C1 o1 L0 |9 m% w, n4 P- @
set trust-ok False
8 j# J) F) e9 p
# c! E p: ?1 O# w7 m
2 F$ k2 E0 ]1 W# O8 S8 flet max-trade-times 0
0 e6 h- O# i C6 v7 n2 y' d4 |foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
- Q; x" `/ p# S# N; I- T# Dlet max-trade-money 0
; ^5 s- O: {/ n7 h9 J4 wforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
; }$ g1 t# t' j0 D0 Xlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
! h) L6 l h6 T) n/ j) u" f% Z: N% O+ T$ k" Z
4 T2 y+ t0 y) h$ ^
get-global-proportion
+ k1 h% H! t" z( t# j. i2 X# q& Llet trust-value% ^3 C! S/ x$ 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)
( R5 ~6 \! Y& f( [9 N, Wif(trust-value > trade-trust-value)
' S& z4 t2 |! `' W1 s# b[set trust-ok true]
# ~( S7 ?& T4 L6 r9 p0 o* f/ Cend( w1 E1 k) Y+ b! U7 [ Z# v% V7 j. y0 l
- U3 Z; u7 X' Q: h' n
to get-global-proportion
4 C( ?8 b$ ?/ [( ]- _: Rifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
/ P: u3 r4 J6 ^' ]* X[set global-proportion 0]
' x5 j2 O' g; e6 O[let i 0
9 h) G- p9 d# f( slet sum-money 0
" @, z3 P$ [6 j5 Pwhile[ i < people]
8 |' ~2 n d: E9 ?3 s[
9 K" u2 o* c- P# I C* n6 u, Hif( length (item i
9 l1 a# f6 T9 O7 R/ J. H$ k[trade-record-all] of customer) > 3 )
5 ?! {) s. V; `, [3 _[
6 r5 s6 Q5 y* u6 Z- Yset sum-money (sum-money + item 2(item i [trade-record-all] of myself))/ Q4 e" M! @6 ~" C
]' R. R' |/ M9 ?1 D) V* k
]; s% A; ]; i: W& a3 q) u1 a
let j 03 X- E; v* L+ n% [. U) h2 p
let note 0
) ~* x" t. s3 t) K% Z0 n+ _while[ j < people]
6 @) x8 }% x( j& p! a3 C3 _9 P[
: d& s: w% \' \0 T% @7 K% zif( length (item i
7 v/ M5 }5 |% i/ L8 I% f[trade-record-all] of customer) > 3 )
- r" y2 n9 U# z( {$ G" `[
; F j8 u" F; W' p+ p' A& oifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
7 W8 D3 a* N) b1 H w3 [[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
1 x* R" F. r5 w! Z( P" d+ O$ a0 Q[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]6 C' f( \- _! w3 l4 v: |# B
]
3 I7 T2 ]4 N4 ^7 v. k" l8 _* Q: E9 r]+ H! [- o) t' k& p6 Z! t N
set global-proportion note' `$ @1 y3 y4 J
]
8 Q/ x' L5 ?/ S& Vend
4 M5 I' S }. h0 l& f/ T
' d& X$ H& v; n- s, Tto do-trade
) K9 X0 B1 x" \" X/ b( p4 j! l;;这个过程实际上是给双方作出评价的过程2 J! E4 }9 g: B. _
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
- N% I, m- x7 k+ ?: Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价) X) M9 ?4 O0 B& f- |
set trade-record-current lput(timer) trade-record-current1 b8 M1 V ?7 ?$ E, Y' K
;;评价时间. f- }8 A& y$ O% b, y+ W
ask myself [; O7 T! ]# }4 O1 H: y
update-local-reputation
1 ^/ M- x! \) xset trade-record-current lput([local-reputation] of myself) trade-record-current
2 o- q& v( t3 q' x1 w]; K1 C- |. v, f' M) B+ [5 \: I
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
; Z/ @* N0 c' v4 v+ c3 c! B* t* \# w;;将此次交易的记录加入到trade-record-one中6 Z I, s5 X$ ^: [: H$ L
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 }' V ^, |7 f& O" k: d& D$ q3 p: ^
let note (item 2 trade-record-current )8 I6 E. P; a/ ^4 ^( ~% r1 b* o
set trade-record-current
/ r# t2 {2 j; @3 W9 N+ b- b$ t(replace-item 2 trade-record-current (item 3 trade-record-current))
" k9 F0 K4 y& k Jset trade-record-current
0 w, U* ]0 O) m, y# L- Q(replace-item 3 trade-record-current note)7 Z6 j# u( ^' q" @% O0 Z
3 e: \" f4 h; A' Q6 N. o7 ~
; R1 _' @- S8 I' {9 g! v kask customer [
. t/ u) p5 B* T- y+ P2 a) ~) Jupdate-local-reputation
, s" L! {! q6 a" Z0 L+ Eset trade-record-current! M3 f8 W+ I$ m& e1 s4 f
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 3 W' K+ z5 V6 B8 P: i ]; K: [4 t
]
. w( p2 R1 @+ A+ O/ l4 T5 Q
; C( L$ a- Z) j9 ~+ Q8 i) j; v$ ~) }4 s( y# T) G
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 p( p3 p- P/ c: W8 b
4 B: K* G, v4 U" m9 hset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
S. H+ ]' ]4 y0 Y$ X* n6 `: R;;将此次交易的记录加入到customer的trade-record-all中3 u6 T! }. L" | d( E
end, l' J* x& S: o: @. R$ C
0 I1 D. g6 [7 oto update-local-reputation$ K8 U$ G0 M+ W" d
set [trade-record-one-len] of myself length [trade-record-one] of myself9 W# Q! C# ^; g
% g. J, m8 G% d; F
A3 F0 e/ t* W5 \8 s
;;if [trade-record-one-len] of myself > 3
9 X9 v9 a+ O# @( K( S# I/ ~update-neighbor-total
% }; {4 Q1 E1 V O( o7 V! d g7 r n1 D;;更新邻居节点的数目,在此进行
. _$ h2 k' h* n( e8 Elet i 3
; D) F- c, T" K/ D" @2 |& K8 Zlet sum-time 0" I# w7 }& ?0 j: a* S
while[i < [trade-record-one-len] of myself]
: Z* N0 V$ S- O. h[6 A! q7 g0 w; v3 T& g
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )5 R2 y. I& @' ^- O- Y7 }* W
set i
! _* h! h5 r* F1 n/ A6 h2 ^( i + 1)3 }8 U; O7 F9 m/ ~- i( Z
]
; H9 r. N$ Q0 M' B! y! vlet j 3
( H3 N. V2 P. `8 t0 n/ dlet sum-money 0' g( z% d+ m" p4 l
while[j < [trade-record-one-len] of myself]( E x5 }2 f1 E5 _$ N
[
3 q$ N- l3 Q* }2 v. 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)+ A: [* Y2 N- v' J: q# m9 M& n
set j
3 x+ a" n/ [0 O& Z( j + 1)
/ S& d8 a" ~% {4 \5 p: t]6 c- W( Z9 ~5 @& j) k1 ?; I4 p) \
let k 3
1 d4 q0 A' D9 Slet power 0
9 y% L- b! |. l8 u) ]5 Flet local 0
' C$ U1 z3 C: w8 \while [k <[trade-record-one-len] of myself]
" S/ Z; m: ?, [8 y3 R[
" m" H5 H; B/ ^1 Dset 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) . E0 @/ w1 ]& O$ ]4 i
set k (k + 1)% r! ~ T) W) N3 j9 \
]
8 H0 |9 @: M: w) U% pset [local-reputation] of myself (local)
) @8 p6 T6 F. _! Pend# Q+ ]% i, W, z' y2 v+ k$ R
& ]8 n7 i( c8 V$ w
to update-neighbor-total2 E( L& ^! B' B7 X
+ T6 B: ~! z, \. N+ \if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
. P2 i7 \4 Y; q
I: X, y5 d1 N3 `4 H- M; i( A" ^* h3 P; Z9 u1 _" g r3 M
end$ h2 F6 q7 M' G/ ^, c
7 e( ?4 l4 ?+ g3 j, a, ^5 G
to update-credibility-ijl : w& S+ o2 F+ ~9 s+ R
: r$ D& w3 w5 S. z$ T;;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。
' A8 I/ w+ {# E& ?# T; k7 h5 Ulet l 0
% r Q5 N0 q7 U) v7 ?7 J# |1 n9 S+ [while[ l < people ]
" M4 D: Z: p: h! s0 e, D2 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
" N! u! g* g" O0 c8 {[
2 ?4 \) M6 h# L, llet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
- X2 f. k5 R n3 v) cif (trade-record-one-j-l-len > 3)
# i) g$ \2 z' K. p/ E7 s[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
: f3 K; h2 P' U$ j8 X4 x: {8 Alet i 3
! c' W- d, C: `; |let sum-time 06 d7 W7 [* B0 f8 T1 C* l
while[i < trade-record-one-len]9 z& i2 D$ n/ `9 Z
[
8 |2 u6 f' D ?: Q7 M8 sset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
; o& X+ r: m; Qset i6 v8 P! d" V# R" M/ |. S* ?8 g
( i + 1)( E) k. a( Z6 j
]
: L% Y% D' }: V7 a% ulet credibility-i-j-l 0
# d }" o. ]# Q+ f$ i' i! e;;i评价(j对jl的评价)$ G ~: ?' g' T: {) `% c }, Z/ ]* \
let j 3
" f$ m3 W i3 P4 v1 q: Wlet k 4
2 D' L+ }4 M' {) |while[j < trade-record-one-len]( x- [- `7 U3 k1 {
[
" n' E; B: g, twhile [((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
: E8 A/ e. ^* a" o. cset 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)
# z+ [0 F% a9 `# Z6 c; r7 }set j
: b$ Y, j, z' I/ a. p( j + 1)
! O. N$ r' h2 L8 p* w2 u]. X$ G0 W- _: j% f1 f/ V) T; s/ F4 O
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 ))
+ n4 [* \+ X; I7 n; a3 D+ A5 U8 W2 B+ ]) A' [9 p+ @
, Y! u" x) H7 O9 V' ^" X
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
4 h0 ^: p" Y# A6 }2 i;;及时更新i对l的评价质量的评价
% M7 J0 @6 E, I0 bset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
% m7 k3 k% h% G4 g" Kset l (l + 1)
; `" h* c6 J% y- Y+ I]; K! G8 q j1 Y# }7 s6 C# _- }" G' w# a
end! E- k3 U. W4 P6 `; O) k, I/ o* j6 {( l
6 p( m" ?) v! n" `/ ]) G2 ]" R
to update-credibility-list) J7 G2 _0 h8 ]* \( H9 D. k
let i 0" Z+ m6 F" C4 Q7 ^- ~( E0 n( \
while[i < people]8 L, n6 m' `) G& M7 d
[1 l7 Z1 y d0 c4 x: b1 J, [
let j 0
y* I! J6 n# D9 slet note 0- G F7 Z- X( c O3 J0 D# b
let k 0- R! r6 a0 }; M+ c+ |: u
;;计作出过评价的邻居节点的数目. C* [% K( h7 q
while[j < people]
) i. u; q' M4 j7 m[
8 `, Q; |+ D$ [3 oif (item j( [credibility] of turtle (i + 1)) != -1)
1 C3 N6 w+ U: R1 n1 b;;判断是否给本turtle的评价质量做出过评价的节点
5 k; @+ `, M1 t; J! m( G& o[set note (note + item j ([credibility]of turtle (i + 1))); S: g# j& E3 N& v
;;*(exp (-(people - 2)))/(people - 2))]
: W4 |* B4 a" c. eset k (k + 1)
$ a& }4 z! k8 r; O: B% s]' S$ a6 Z# t/ d% ^& I% K+ u
set j (j + 1)
9 z4 G. q* ^$ u( R) }# b$ o; t; V e]
7 U, u0 Q m) Y/ W( k' eset note (note *(exp (- (1 / k)))/ k)
: o- d! ^6 X; F7 F- Z, t, |set credibility-list (replace-item i credibility-list note)5 b% R7 Y; H' W |; u. Q
set i (i + 1)! z+ D" }5 H6 v' \
]& w/ \8 S' K6 I' q, Y5 A
end
- j% \* _) T8 H5 \/ {4 L6 I
6 D' l$ ~# D& g/ O$ Bto update-global-reputation-list3 t- G! S+ a8 I: s$ r
let j 0
) a8 h0 v+ j# Y; owhile[j < people]8 i% p4 J" m, e8 b9 E# {
[
) e; [4 c- r5 q& j% y8 f1 ?& Jlet new 0
1 d d; t4 Z- y" M;;暂存新的一个全局声誉4 i$ Q; W% J& F0 K" x, Z
let i 03 r7 L$ w0 w& n- D
let sum-money 05 U: ^. f% \/ h0 D
let credibility-money 0: B$ z' O% l* G
while [i < people]/ c4 E7 s0 |. ~- ~! K
[( U3 i9 _$ t: o0 H1 p* V
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))/ P2 ?" @& z& Y' [; h) c1 q
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))1 x3 O0 z& e2 \! a
set i (i + 1)
# K2 u! B4 R( \7 j8 h8 b]" s) C# k q( }
let k 04 H4 H: G5 {" r
let new1 0, D+ a4 O2 `4 ?
while [k < people]) i E: p/ [: Z$ [
[
7 x) G& @) O3 }* f+ bset 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)- [# \: E/ ^: O% Q) [
set k (k + 1)
6 d. [! o* O$ ~]
8 y% H+ b0 h7 H1 i. o+ J. `' {* xset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ' d C: A( `: m! O
set global-reputation-list (replace-item j global-reputation-list new)
$ T$ N5 J* y8 lset j (j + 1)
8 E$ b: z y& X' W], X$ N" H- Z, b, | J! b$ v
end
/ y0 @- d+ u& @* z2 t# h- C: j/ H4 L6 K1 D
) I. ]( }* R2 j) w0 G9 f7 S; _
: M. H9 ~) X0 x, _/ G( K, ~to get-color
9 u2 T( I. R) b1 M' Z- |$ p& A$ ~: t3 [! f8 f
set color blue
4 f% T y e7 v/ Aend
( {, N6 ?7 ~" }1 `0 P
: T& G" q& C) h& Z$ Mto poll-class
/ H' T, a$ k5 ]end
$ ]+ q4 p1 J! |9 {8 e$ `/ q4 w7 m; X! H' z6 P% E
to setup-plot10 t4 s4 j; \! s: j( [3 S) N
4 K" V2 Q6 j/ y/ U& h9 ~
set-current-plot "Trends-of-Local-reputation"
9 ^+ [3 F6 U% i# _8 s+ b! Z9 t! x2 z8 G3 g: z$ I; x
set-plot-x-range 0 xmax
! N5 S: D4 `# \5 x) c7 p0 \* \$ b6 z( `- k% I, \; {
set-plot-y-range 0.0 ymax
6 {, B5 o. {+ T8 m7 c% T2 eend
2 W. q. G3 G! v0 }$ _0 M7 t7 ^0 O, F" r7 E* T9 A
to setup-plot2; S1 s5 H5 p y* v( }; o. _
% \% d( Y# p3 [# ]1 k8 y
set-current-plot "Trends-of-global-reputation"
) Z6 J# }* P. ^+ L& s
; R4 ?1 H+ u# H9 I8 Y+ \set-plot-x-range 0 xmax
4 Z2 J- ^9 b9 i$ X v5 b/ f$ b9 Y8 t2 d+ B
set-plot-y-range 0.0 ymax( o5 Z6 V6 b& u* {8 p9 ^
end
) B4 } I+ d @4 [
+ O b. \& @0 B( ?: Lto setup-plot36 e9 x6 n2 M. d& a2 `- f1 B
9 B) \" f: C6 }7 ?
set-current-plot "Trends-of-credibility"
: k D9 h3 g$ r3 _9 d
- b4 N5 M' U: H, @; k8 S( I! Mset-plot-x-range 0 xmax
9 B, x A1 X1 h6 ^- i# e0 N/ F" A2 G, C! x | R h; o
set-plot-y-range 0.0 ymax( v; v0 o' h2 W) [
end
6 A* f' I. Z; D8 l# Z
, Y- i$ V. N' b5 Gto do-plots
4 C" q$ A+ A" _set-current-plot "Trends-of-Local-reputation"
' I6 I7 ?& [% u# H6 B Y& h0 Hset-current-plot-pen "Honest service"
1 b. x) z7 \2 ]* C$ I# S* y) l2 e2 yend
/ U3 w6 W- z/ {6 Y" _/ \$ r7 P! |% B i/ F
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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