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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
n( H( O2 g/ ]0 o U) `globals[
/ Y3 r8 D) [6 k* o6 X8 \xmax
: C3 T' Z" p A" B2 X$ Q( g% jymax/ ? v8 O& X1 f5 T
global-reputation-list+ H+ b0 \* a. Q
. v2 H. d* ]' B;;每一个turtle的全局声誉都存在此LIST中
' K! y! p# f$ {' Rcredibility-list
: @6 W! Q A$ W4 ^/ h. X" i1 \;;每一个turtle的评价可信度1 U+ t |3 n J
honest-service
1 H; c# ?! m$ W0 d; P, zunhonest-service* o# y; D5 m/ \
oscillation: k+ @- i0 y: b$ X' Y
rand-dynamic- G/ C# m) R8 W9 ]7 Q! e
]
% ?4 q( D( u" X# B( @: S3 g0 g/ M$ A/ B; H+ J- j6 C! a
turtles-own[
, r2 O$ T+ f5 s8 B1 ptrade-record-all
" g7 _' q& ~0 u1 E# P, k;;a list of lists,由trade-record-one组成
4 q1 k j$ h# J0 h# k) T0 q* _trade-record-one0 X& p) A- y. \+ i6 o; g1 h
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录6 V1 ]; V w6 ]6 t& x
9 \# J# C5 p7 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]]( }) J- j8 ~- e
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]
; k/ u# b+ }4 Rcredibility-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/ Z8 b2 m5 J. Y: Q" B3 L; h' w
neighbor-total
" @& x$ v, w9 G$ q;;记录该turtle的邻居节点的数目( H/ `* y$ i. O4 F
trade-time
& }( G, d V1 F;;当前发生交易的turtle的交易时间
# r0 |5 ~5 K8 Dappraise-give# N r4 X1 Z9 c" c: _2 D# K6 s+ d
;;当前发生交易时给出的评价" l+ N" O& G0 ^" \
appraise-receive7 l8 I' z6 G+ _# ~) w, M m7 j9 N
;;当前发生交易时收到的评价
# [& f: G m- b9 ?appraise-time H; l# z2 n3 Y4 [5 d
;;当前发生交易时的评价时间
$ m2 z$ ]. H3 A" G6 Rlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉1 x" g: u9 f& h1 q) F4 a- k
trade-times-total
% W, j. b% j6 E0 d, w: T;;与当前turtle的交易总次数/ _$ J2 s$ r1 f1 I
trade-money-total
+ ~! q4 K1 R ^;;与当前turtle的交易总金额: [: B, d! s9 H" V" s2 C" m2 {3 m5 F- b
local-reputation0 v, B' O! b9 n) W2 o# m0 r
global-reputation/ I" S3 |# y% f
credibility: O: _/ m5 p% Q! @
;;评价可信度,每次交易后都需要更新
6 w; O; V0 w0 V- b3 I2 ecredibility-all2 G3 ?0 N3 U& w/ w& m1 z7 S7 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
) @ S. D: X+ Z( S4 ]# G" U0 x$ i+ L0 ]% T8 J, o5 x
;;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
: M# ?# O8 m8 ~ i! Tcredibility-one
, [" O7 G& W7 e. 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
2 i1 H' ?5 J2 m1 Y; H+ R6 Tglobal-proportion2 f0 [& ^- e. b7 @% e# q
customer
% m! p/ p4 I- s9 J2 Y2 p1 @customer-no3 M. r: I5 h: q/ t
trust-ok
" I& O* k- i" B+ |trade-record-one-len;;trade-record-one的长度
: }6 c; v, i, G]
4 b: N" H' |- I/ Y7 x/ o
, p: Y/ ~1 B3 B) b1 O9 ^;;setup procedure3 ?, O' j$ }9 |$ X' ?
% ^5 k; ]! c& Z! V& }
to setup( m3 z# Y" |% X# Z, t
: F& R( D6 N( o
ca
4 F5 S3 w5 |" I* O4 b
) u+ A. i1 j/ zinitialize-settings% u2 `6 }4 D4 u% t {, U
' a7 x- Q( B8 o/ _7 e' l
crt people [setup-turtles]
# X s9 a9 Z9 E/ j3 @: Z6 |* n
9 |, D$ f) a2 e( Y, u* }reset-timer
9 T O5 N! J( t' s
$ z$ c& _! e' N0 }6 ?poll-class
5 i3 z! e. s- l$ p5 u
: H2 B: T) b( H( v9 ?setup-plots$ v' J' w; C: g# q0 A- r- l0 h
* C! L1 H1 N1 z. b7 Edo-plots
; f. v! u. C6 v! g( T. [5 ^end2 h# Z9 i8 E) E! k" }
; I1 a `; t9 _, m0 Xto initialize-settings
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set global-reputation-list []
$ o: f) [ j$ g
! x5 f. X6 b3 ~2 O2 {; c* Pset credibility-list n-values people [0.5]
2 N' W9 [+ f' |9 E! L O( O: ]+ ]. I/ v/ j! |
set honest-service 0. }8 n& R9 A' Q7 _! u+ t6 A
: o& H' j8 i$ c# ]% x: c1 `set unhonest-service 0
" o" _' w1 t; o' y1 J0 V' H3 P1 H
set oscillation 0
# C8 A' ^7 p P% g5 D* F. i+ C
set rand-dynamic 0
" i( S. K( x7 w4 @0 cend
9 G- E( Y f% B* ~- y7 T0 p) t% c0 M( S! }" d
to setup-turtles ! [0 u1 S5 M* [: F0 Y4 q/ u
set shape "person"7 l _ M) p; m# p0 q2 A8 q
setxy random-xcor random-ycor( v) N1 d( [- e7 B8 S4 p: H( I
set trade-record-one []$ N4 D/ E; y# @: t6 d
& E- |. c1 u+ F) ~1 mset trade-record-all n-values people [(list (? + 1) 0 0)]
0 |& j! F3 A% a- S4 v1 B0 J& t+ o) J1 d) T* h" E, M" h3 k
set trade-record-current []7 K4 n- {+ _ [& k8 [2 G1 @
set credibility-receive []
% G- q0 [$ Z5 F: hset local-reputation 0.5% B: B" g' ^: |5 i0 Q
set neighbor-total 0
8 b. n, _- c* b" W# gset trade-times-total 0
; B5 J% |1 |0 u, P/ h% cset trade-money-total 0
. \& |) q* G6 q% q. B0 ]) q4 aset customer nobody3 W' ?; t; e+ D8 U y
set credibility-all n-values people [creat-credibility]; E& V# w! U& X: N b9 B
set credibility n-values people [-1]) M$ V4 W: x3 \9 l6 a* ^
get-color
$ h' y3 L' A. p" ?# N: T- m8 B( M% ]6 x8 D! W& P! J. p
end/ J8 l/ X' c5 W& }& _: ~6 I& r( _
! [8 |2 B! n" m& }' _6 a
to-report creat-credibility# d' Y$ _8 i/ @( m& v* R
report n-values people [0.5]
% }6 B ~! b# s- G8 X" Jend* f; p# o* A& |+ R* n* y/ \2 _3 ]+ H2 O
1 w* {1 l0 B% ?4 A# xto setup-plots. a. l$ N" G! z
; |, e) y) n6 H/ G' @: i3 X. X% dset xmax 300 G$ y' Y) o- V# @6 [8 t B
# \& N$ _' B1 _! ]* N, v8 w. Pset ymax 1.0
; ~3 n& P. F0 \4 Q! R$ s% j8 D
# c* ~# k& y0 A6 d, nclear-all-plots
, Y1 A% i# f# J, F- V5 v
) L3 {4 x# h( I! m+ `- Z q% O+ fsetup-plot1
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O* q' _/ M0 x1 d: h2 Ysetup-plot2/ e9 M u5 V) ^# b$ S3 g
% C2 {3 x0 m/ G7 X6 f, P7 W- A, ?5 q
setup-plot3. W' x& J- o* W! L
end# | M) c# |, F) F
' J% F7 Q" {! L$ X;;run time procedures
2 X2 ]3 z' T$ |7 Y6 J, j! x
. z+ w1 J& C" C# w2 rto go) n/ G5 s7 d6 Y
* h* b/ o4 a# k5 w' X
ask turtles [do-business]
' x" ]4 A" y1 s$ F, d% [end
* K; N" M! A6 H8 V1 T2 ~# k q$ d2 M- R
to do-business
# z& A5 @+ r# s3 ]) s4 p
# P* { ?8 L$ @! N9 d
2 \! Y) e$ Z, \0 v. _* n. `rt random 3605 L/ ^) G. K+ E* g/ @# g
' \4 `% F. [% u/ v2 I0 i
fd 13 Y+ h" h. o( ~+ ~9 m8 o
$ e" E" {4 `) s B2 }7 {# T& _9 X) Z* a
ifelse(other turtles-here != nobody)[
: q. R6 h% B9 `% b' N, z }/ n) P u% q: ]( a" l% s; z
set customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)- d4 W: u8 U4 W2 Q# P7 g, j# z
[trade-record-all]of self
+ k' V0 I- m8 h;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
- p, [3 `5 s, B9 h. m4 {8 _ f$ K* ~- u) M" ?& S+ s* L/ x( e/ x
set [trade-record-one] of customer item (([who] of self) - 1)8 i' R2 ?6 t8 D( h
[trade-record-all]of customer, A2 F, H ?; e
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set [trade-record-one-len] of self length [trade-record-one] of self: k8 \# Y0 o3 x0 D3 Y
3 z9 a8 o6 l2 P2 W# O6 m z
set trade-record-current( list (timer) (random money-upper-limit))" K6 ^$ w: l4 m6 D: ^! Z
# s) V; \% k+ p2 V) wask self [do-trust]
; R1 p5 F9 w9 y;;先求i对j的信任度- e9 _0 c$ l9 I2 \4 G/ }9 H- Q& Z! \
x$ t+ j5 J7 I
if ([trust-ok] of self): E% s1 a% c! w* N( ^6 L' \
;;根据i对j的信任度来决定是否与j进行交易[1 A$ B- s a- B: Z' X }' r- p* l
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself. Z) z7 v8 B" d) A; B5 _
+ d" E; T# R3 u7 { o6 K[
# q! W# Q! q! @; N7 ] n4 C+ P9 P+ y$ D" ^5 D) \8 q; B
do-trade
+ B' ]$ }! i l/ g( K0 p
0 @# [' n R, r0 supdate-credibility-ijl1 C4 P x% Y: t h
5 t7 z% O* X! f$ Z' Y3 a m4 }: n4 e
update-credibility-list. L/ n5 }& P. T: E
7 t! I9 w/ s- p) z8 I, u
* g5 i+ K- z/ x9 ]update-global-reputation-list6 h/ A0 \, T. Y, S/ [, |4 N! v; M. L
+ W, v, e4 o5 z6 {' K8 @3 `/ S
poll-class* X' U8 k5 j+ j: d7 A' I& K
& o Y" u# H/ K( Qget-color; l0 ^7 C+ @" m0 I: N3 s
) Z7 Y0 _. p+ S, A]]
5 y* {$ {6 S$ Z* D1 b
- w b8 I! `, v7 a" q- h: P C;;如果所得的信任度满足条件,则进行交易
6 P: W" R! y3 M9 ?8 J g% G
, d m1 e5 V5 G0 z g9 t[( U; Y, |; g# I4 b. d
, e/ y# P5 X5 \2 P" J8 }rt random 360
- X% f; Y& I' L, F, e4 D+ p, @ a
fd 1" D5 e/ {: R/ A% J7 {6 _' R
( o' _' @2 q, T! N, Y8 \! y]8 U1 C% w8 N3 ~0 U2 m% j
$ V( g0 q. {' Oend. y [$ s) {. y f
( E7 h0 M% L" t: n9 G( R1 c+ sto do-trust 7 t) r! }& c# G, {( A4 y/ A
set trust-ok False
" }( v1 Q5 ?" D) @ o8 ~$ A2 Z' B) c6 G1 b& p
6 `7 @& M8 {/ g1 p. j+ Alet max-trade-times 0
8 g! u- n# e) |6 I+ nforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 t$ Z/ r! z8 u" f" D2 ]! I
let max-trade-money 01 K6 v+ e+ r9 H+ k- l3 |9 P
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
]% ~3 \% r, B7 U& W, Ulet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
$ X6 a7 A$ }2 }) j% x7 S' U; r: s2 O* \$ S
9 e- O; p' w' ~$ e, W; L1 V
get-global-proportion
) W8 E: s) | `9 [let trust-value/ M0 I; |: n1 t# Y
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)- l( T. j, G% b8 P: J
if(trust-value > trade-trust-value)/ v- V: c: T( T/ ^! Q. U
[set trust-ok true]- H+ k" ?% L) u# j# s" s4 `
end/ I& Z' R2 p9 [$ a& ^" l9 L
% x6 ~$ U K6 wto get-global-proportion T4 H2 n) S" N& H: [% W
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)1 B$ N( S( p6 I2 T6 @, v; z7 W
[set global-proportion 0]# ~) m% W8 _7 J
[let i 0& U- c/ x; `' M5 a5 a: S) ~) _
let sum-money 0
$ o& ?2 @( L. `3 Wwhile[ i < people]8 K" P. H; q4 J) N) J
[! C: n9 ]2 J _: i
if( length (item i
9 l) ?9 \, C3 h& h% _/ Y) z8 r[trade-record-all] of customer) > 3 )
% W; j' w7 h2 h[
, h' m# G' C. ?$ _2 o6 fset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
$ D' z. y3 c7 d]
8 M: Q o$ W& b5 N" ]]. E3 z8 @& [0 Z( ], E9 j. t1 @
let j 0
* Y! A5 y5 F% S0 w9 ]let note 0, x! k2 s- m. y, Z
while[ j < people]
9 O, x) F0 I+ W: E[
4 o( b' l- J1 M4 i- f2 ]# z) jif( length (item i
' B( e7 o: ^5 V" r9 w8 |2 n& h5 S[trade-record-all] of customer) > 3 )
: I4 j5 y8 B1 W+ G7 b[
( ]) e6 M- ]# lifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
$ J3 s* I& }" H9 `9 U8 ]. j) D9 r[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ U+ ~. X5 N9 O' _1 k+ x' E8 }8 ][set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
5 U4 L1 g; R z K5 Z]
9 ?2 \' W5 O+ ~* g]
6 x2 c- q+ i# I+ Sset global-proportion note
; d4 T7 v3 a5 L- {+ j$ _. v; i8 r]
$ J8 N( p7 O$ |end
5 h1 h" K2 U0 z: A
# S' e" f: m; J# o6 N, Jto do-trade
5 A$ i a5 p$ K1 @9 y9 w1 e;;这个过程实际上是给双方作出评价的过程
! G3 R% ?( d4 _) qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价# R3 b! ?* u& J$ d
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
, t$ m: u" F2 a( {2 t( Oset trade-record-current lput(timer) trade-record-current
3 I( @# q% T8 \;;评价时间/ k5 o6 i8 S/ m- i
ask myself [
) w% A% G# R o' X f4 i; Uupdate-local-reputation
& U* t$ _, j( Iset trade-record-current lput([local-reputation] of myself) trade-record-current
8 B& M. W( X; m. C( E]/ Q" X% x3 g: I- G
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself0 l/ p( g/ |2 V8 Q1 a" M8 G
;;将此次交易的记录加入到trade-record-one中
; m. h: o% M* j% R9 W$ Yset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
! y! x% o, D' i" h% [ E- H2 mlet note (item 2 trade-record-current )1 g/ }" a! G0 x
set trade-record-current- T" k, Y4 a3 H8 g+ f- H
(replace-item 2 trade-record-current (item 3 trade-record-current))2 u! J" ]$ j5 X, v: c
set trade-record-current
- |4 u! N+ L; G(replace-item 3 trade-record-current note)1 i/ e U6 w$ q/ T- R2 v/ ?
1 T# ^! |# b, ^2 g* _
' h/ c% X% S% mask customer [: ~# `* c9 Z8 Q7 X6 T% c1 Y
update-local-reputation( l$ ~- x" |& ]' M
set trade-record-current
* B" {/ M" S" F" f! S(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
4 b2 Y# f, a$ k: m* U2 l]
- d0 ?3 |+ q! S1 |% M! v! V
' L4 g' _# j# Q) _0 t7 T/ R
% [9 }: O, T7 s3 uset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
4 B' S+ E* q$ _& p7 P/ w6 L# J( m* b7 y" ~6 `- J9 z" b! ?9 @: z
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 ~$ @( C4 N8 M3 j
;;将此次交易的记录加入到customer的trade-record-all中
9 c2 N4 w: v. V8 s9 q* y7 W3 wend
( s0 m# c w; V7 t+ }
6 D; Y$ _4 X1 ]6 {; L6 M" Eto update-local-reputation @+ m% p. i; S3 l& q( O0 {4 Y
set [trade-record-one-len] of myself length [trade-record-one] of myself1 X/ S, S4 Z- Z5 C# H! v
3 l4 `( s/ z3 [" c" \# r9 f
5 O" K& G' f; }' X* H3 q
;;if [trade-record-one-len] of myself > 3 : j9 v6 }0 ?' E L# t" [
update-neighbor-total. F: T' ^$ L# n
;;更新邻居节点的数目,在此进行/ L3 m! C t8 A O+ p, ~8 q: I
let i 3
- P, b' Y& Z( D2 Y9 E8 y3 L) n6 Mlet sum-time 0
8 X' W) G' d3 _; Q- ?/ h' c: mwhile[i < [trade-record-one-len] of myself]' @" c# w* k% E: n7 u* g$ t- [
[
) J9 y2 u8 m( G$ H; W$ Uset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
. D3 C, U7 ?2 D4 Kset i+ {% k2 H) [+ t9 D+ D$ ^
( i + 1)
* i* k; K# K% [: o' K]
/ n' O6 X% o1 ]5 D6 E/ Y& c1 @let j 34 B# Q( O# p5 d( k, `4 G
let sum-money 0
4 h/ E, x5 q/ j2 H. Wwhile[j < [trade-record-one-len] of myself]( _ J" t: t& P% S' p
[" i* u& d) z! x' a5 {% O
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)4 D( [/ F2 e/ p8 [- V% j* E+ N& r0 k& u
set j& ^4 k A+ m- }8 a7 _' U" o
( j + 1)
1 ~" V, \) T2 V$ |: ^]
/ E" ?' b [* Z3 h9 w) llet k 30 E8 w* i2 Q6 q" i) P5 Z
let power 0% ?* t* L9 M) f% V# t, w
let local 0
9 A+ ~5 a( Q0 G% Y4 owhile [k <[trade-record-one-len] of myself]' A0 i8 }1 Y/ Q( k4 n U8 j) v" L
[9 Q5 c9 h3 g4 a
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)
0 I. @( F3 V* e! \6 \6 y; kset k (k + 1)- A# P" Q2 t. L6 y( ]' P
]
5 `- o- i+ z3 G: Vset [local-reputation] of myself (local)
$ ?7 E& @" t. o. b3 y4 r7 o3 {3 tend
6 Z3 t" M4 s4 v0 D1 B0 K M x1 ]4 J9 H2 g3 H/ x
to update-neighbor-total% m. Z/ d* ?& J4 l: C' R- v( C6 D
/ \# \2 ~. x3 ~2 _if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]: l7 v1 L9 a; {5 ^# E' i- o) t
' e* O, F; }0 f$ ?- v3 ?
% G* J; n" S1 C2 v4 z% V H% Oend* T' Z: p% A+ K6 W4 c
. E1 N6 N- S/ a$ \
to update-credibility-ijl
5 ~9 G! f* o' A
9 R. i3 E3 t6 f A2 b C+ [ 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。
- P+ Q; k+ ~5 Z% klet l 0: X" P3 P' y J0 F
while[ l < people ]
0 V- j4 ?, [1 a% j' s0 G& `;;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. k2 [; }7 }! Y* ^ k7 `8 h) x* W
[
5 U: I4 Q' G% D6 @9 \( Olet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
: j. g2 H; ? O* [! p }# c4 aif (trade-record-one-j-l-len > 3)
8 t" w2 x9 {# ^1 _$ f7 B1 n[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" h! o' }& d9 O+ a, ^. B
let i 3
# X9 I$ N" d% J' j6 c1 x/ @2 Nlet sum-time 0( F- A6 [9 N9 G3 N) M. d. _
while[i < trade-record-one-len]
$ \, S" {7 ^0 w# Y[9 y' d3 n' Z* y5 s2 N) P: B
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )* ^6 T$ n0 o3 Q
set i
' k2 ~& T# g& @# C2 |( i + 1)
9 k0 v8 Y: R- o& v]
1 H( E/ V) |1 R0 g; |let credibility-i-j-l 0
$ w+ x8 Z& R3 |;;i评价(j对jl的评价)! o; c5 X9 g7 J5 |6 f
let j 3
2 P5 F. [0 J9 T2 Vlet k 4
7 |% U: s8 ` M/ g. D& gwhile[j < trade-record-one-len]
4 K @* d7 `8 o2 j+ B; }8 q[ B$ u+ q7 J' d/ K# R
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6 \" c& V( o1 X" {7 h* n9 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)
. B' l$ w% e# d6 h, W8 dset j% c: C0 }1 [$ H
( j + 1)$ `6 A7 A6 A4 E
]
8 Z3 c0 e0 }7 u9 Jset [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 ))6 u/ ~' h. w( u. W! z* c
: M8 p4 A# `( q; K# W. X# r$ U3 e: L$ U" }4 ^
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
1 V- p% l6 R4 N f, \0 U8 [, |;;及时更新i对l的评价质量的评价
3 J7 m! w/ g4 C6 p' M) kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]# M: Z: e6 o$ O/ \% M6 c9 P# p
set l (l + 1)9 A# ~' ~4 d# D9 R) w: H
]1 q9 r( s$ w6 ^; }: Y" Q5 x4 I: `
end
; V9 X+ D1 Z' z) A3 a/ y- I: G2 k, J# I; A: m4 f7 [# c1 Y
to update-credibility-list
0 @4 T* W$ a6 C1 r3 f% H% O2 rlet i 0$ \ U' m) x& y6 s) y
while[i < people]* o7 ^0 u7 q, |( A2 z1 W7 p
[ ^1 u& l: T+ s5 h$ c4 A
let j 0/ N3 P$ o4 S3 E, [# L
let note 0. \; I) {% n3 P' t0 l$ Q4 ~
let k 0, Z3 O5 Y/ k: A8 Y4 _3 O
;;计作出过评价的邻居节点的数目
1 I D8 ]5 K+ h5 |/ iwhile[j < people]8 q$ m: ^$ o/ v; y
[6 k) i$ R# L- Y3 \
if (item j( [credibility] of turtle (i + 1)) != -1)+ a" X9 \1 f- I5 k% J
;;判断是否给本turtle的评价质量做出过评价的节点
2 B1 T8 {+ N; b" g: x" ^[set note (note + item j ([credibility]of turtle (i + 1)))9 X6 j7 w: }. X9 H+ |$ G
;;*(exp (-(people - 2)))/(people - 2))]
& L: ]! c- Z- }0 V* f6 Fset k (k + 1)4 h! U8 }8 o2 C
]
8 L: n. d2 Z/ h8 m% G# F$ @set j (j + 1)& n: u7 e( V- `
]
; a- q; ?. _, c) u& y3 `8 bset note (note *(exp (- (1 / k)))/ k)2 {5 V* |7 n8 F2 M. o/ ~7 x
set credibility-list (replace-item i credibility-list note)7 t' ?( F8 G3 ^1 v
set i (i + 1)
8 r9 R# `! i; T" }; V* N]
2 _$ _6 E1 E1 k! m/ a# J C- Bend! O6 X8 d9 R" Z* K0 x: ]6 h
7 ^) `( @. e" m: M4 R
to update-global-reputation-list
2 i, ?6 K. ]( y. L7 O3 J% p( nlet j 02 J8 |$ F7 p) z I. N y
while[j < people]9 e7 k" @- d2 @# h
[
1 {( \4 ~+ z1 m# klet new 0: X% r+ O8 |- ^: ^% |
;;暂存新的一个全局声誉
3 y4 Q5 [" G4 X: dlet i 0! w2 J( s2 a* M8 m, v4 v2 U7 N
let sum-money 0% U6 O8 ?/ G& E* C9 i" I' n# d
let credibility-money 0$ `+ n9 D( q( O( f h5 D
while [i < people]2 l8 c' l2 E2 p8 L7 e
[
( m `! D' ~. j0 b7 E$ z! @set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ D: A! Q Q+ e- L+ @0 Mset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
7 `2 ` A: @$ s# {set i (i + 1)
3 k0 u l! F$ l/ ?- { i& e; W8 _]
% L, q) y+ k) z% Nlet k 0
3 ]8 A" \6 W5 q7 e3 a% V, ~let new1 0 w$ ?5 p" R& q9 ]
while [k < people]8 ?0 J$ V4 w& y9 _" a$ ^5 k$ W6 E
[
" N2 \+ N; S% Q' Y& f2 l5 xset 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)2 U" p: ^3 |: x+ ~2 U
set k (k + 1)1 L- C; D# \: j
]. Z* x, M8 u9 ^$ n. c4 i( J- V
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 3 S$ _; r5 J Q
set global-reputation-list (replace-item j global-reputation-list new)& t4 ~9 s# R8 I Y, y
set j (j + 1)
5 f9 I Z6 R l]% L6 k! Y8 _% P9 r/ Q- f: y
end! ?1 s4 ]" |) X6 i W! l7 T$ ~
, l; ^, Q- j4 ]1 D
% U8 T" E# Y2 E- [0 `
" N9 Q- k3 I3 U' ~" N3 vto get-color
! V! B2 N# |& a$ t5 x1 s
$ ?7 \# X1 s: G" J- Pset color blue8 l" M% w* Y2 c% S0 U' P
end
4 a2 j! n* E1 ]% \' {& u3 a4 w$ b
to poll-class* Z5 ?2 u4 Z: x5 Y8 C' z4 N
end
* k% a0 |5 j0 d. Q. R
5 q* S) A. a8 w7 N b; K, L( a, _to setup-plot1. ?( P6 {, O4 [% F5 j; ]$ ?
' j' m$ j. q! E
set-current-plot "Trends-of-Local-reputation"! V- E% ^, M% D! R; @
) o9 j( F" G1 p# b ~2 Z! ]
set-plot-x-range 0 xmax5 |5 u& {( ^2 O$ M+ k2 o
* U( \1 j+ q% pset-plot-y-range 0.0 ymax- k3 x. f8 o1 c$ g9 i
end
% |, x9 H L/ u; z& k) a8 p+ Y
. `: ?8 |4 L3 [+ W! y4 Eto setup-plot26 x9 M9 ~* t$ L- m& R
2 b( R6 G7 n: ^6 h" ~
set-current-plot "Trends-of-global-reputation"
/ ]" m+ ^1 [% j2 B/ B
/ o3 Q, e) I$ q8 V; Pset-plot-x-range 0 xmax
; ?. M8 T$ V+ c' O( t. e4 b- W V$ U+ b. T/ p5 f
set-plot-y-range 0.0 ymax
* h' @) d, j: g0 E+ s' Rend
% W3 V( ?! [ |4 z! S- E6 Y) z d+ O7 \ n ~5 n) r2 }
to setup-plot3. B& B: O& `7 {; v% \/ o6 M: j
6 R. D- B9 m3 N0 _- |
set-current-plot "Trends-of-credibility". ^7 D9 _ D# F% V+ g( H
- @7 C* R: r+ D' f2 @# ?& yset-plot-x-range 0 xmax- j. k+ A# W8 H% U
+ ?+ ?. }; x4 ^0 j6 n' B2 @% t
set-plot-y-range 0.0 ymax
( U% d) k, P1 aend ^) |2 d" L0 G8 f# C! D' O6 o- J
" ^0 M0 o C5 B* s1 pto do-plots; C0 ^5 n9 }4 q0 J% K
set-current-plot "Trends-of-Local-reputation"$ R/ Z7 a" j! [8 ^
set-current-plot-pen "Honest service"
& {/ Q6 x5 s9 b" `- ^1 L, [$ Wend" d) G+ _( R( S" k2 H9 Q
; p/ X& b0 e9 q' l
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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