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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( t: T U* e; M- e0 ]
globals[
! T, c( O- F. B. _xmax
6 O0 b {! Z) w$ q# bymax
9 M% p& |, u1 R" D% _global-reputation-list N5 s: Q, x2 I3 |: G' P/ o6 Z. U
3 n1 I& i% G( l- R
;;每一个turtle的全局声誉都存在此LIST中
+ L9 b' E& Q2 D2 |& o% {/ mcredibility-list
! G7 P( D3 {$ S: [5 j;;每一个turtle的评价可信度( y- j+ L$ J2 `$ _* }3 G
honest-service5 ^ v! O- P9 S$ Y% w' E2 ?
unhonest-service: z5 g4 O% z( Y: v8 S* |& p7 M+ s
oscillation% q; M1 [0 V0 _. E
rand-dynamic
$ L% j2 j8 _$ s]" x, h# t# ]% m& d/ H2 m7 ^; k- S
/ N# q$ t- ]1 i2 g9 q
turtles-own[+ ?1 o3 e+ n5 u% m' B
trade-record-all
/ g& v$ t1 B; P0 v7 {) N4 Y& G;;a list of lists,由trade-record-one组成
) @0 K4 G" D3 |" ?' z' Mtrade-record-one
6 _' m# _' A. O% K u6 o" q;;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$ F2 i8 E M R' A" d: M2 A. y( ~+ A# u! [8 d1 z" s4 ?9 A: ?
;;[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]]
7 n; u0 O. @) |# @) Mtrade-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 |" F7 D8 g4 d4 W6 ~1 Qcredibility-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
8 }8 H& ~; x; |1 B1 C$ rneighbor-total
3 O2 F5 S9 p7 U6 @; T;;记录该turtle的邻居节点的数目& T N7 B% K5 r( Y5 x' i% ~4 V
trade-time
# d" Z! L; m/ [3 j. B* j;;当前发生交易的turtle的交易时间
* @- h, m" A( N5 m& y3 F7 w9 Kappraise-give' U4 ^2 o2 B2 {, F
;;当前发生交易时给出的评价
9 m |* S G( o1 _, Y. C* W/ Wappraise-receive
9 v0 T9 w0 q2 K" T;;当前发生交易时收到的评价
3 G8 v% c! n# E! V% Zappraise-time
. E: Q: `( e* |( L$ x6 I;;当前发生交易时的评价时间9 w {: J" l# d- g! m
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
/ ~- N$ x$ z/ J( p, @) strade-times-total: d/ E% i+ p8 K4 N' P
;;与当前turtle的交易总次数
( w# |- v- O, q9 wtrade-money-total7 o! {8 \' P5 M8 s, J
;;与当前turtle的交易总金额- V! k, N4 V3 [7 _
local-reputation
% i6 H( \) @: |) Z o) P% Uglobal-reputation/ ~: f) r- k5 {! N# V! |
credibility* {" j S+ T* c4 r2 b6 C: }
;;评价可信度,每次交易后都需要更新
0 N i) ~- `( {7 @+ k8 q" [credibility-all0 g. l: k7 A( }( F7 l5 n1 K' c& O
;;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5 B* A- B% l1 B
8 I' w) z) |. N" I/ F/ @
;;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
. l" M' M' f& I6 Tcredibility-one) t$ {! Q( p; i
;;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
( L+ g3 u* f/ U0 ^9 ~5 }/ rglobal-proportion/ o2 n" x! \$ Q0 E6 s, F
customer
2 w# }( Q. j2 a3 b& ^5 K: {customer-no$ F. T. J# o: p& b* a& c; V" Y) ~
trust-ok
; [5 F: R; H$ c% Q5 k' Strade-record-one-len;;trade-record-one的长度8 `0 r6 \: a! \5 z: F
]
/ u. W& q7 g5 H. P" u0 v9 x: a( [+ d4 R7 ~1 Z" P
;;setup procedure
, R+ B1 K2 h+ h) e2 S, ?
7 i& I: f6 n! fto setup1 t$ k1 ]: M: L* f# d' f9 b6 t8 R
/ o8 Z* M) k2 J2 \6 d3 D! u6 k2 B
ca
! ^( {* D+ f" ^
2 r; V" O: Z- Iinitialize-settings T; [8 B- Y4 [9 `. _
6 B! M. o% _. ?6 `; Y9 mcrt people [setup-turtles]
6 X( f7 B' w$ P' w- V4 D+ ^
4 p: ^; m6 p' K2 u( D/ mreset-timer
* o$ n, X4 A7 p4 x- k' l2 k6 X8 a( P+ u' u4 y: t0 U
poll-class
9 q" L& R, Z; M+ t7 I
' I$ z7 _- r1 e2 V- G3 d$ [setup-plots
1 n; F8 y; i& @3 x; H4 n1 g& B1 t$ p }# Y, m$ a
do-plots
$ u" J$ ~4 T1 T$ U \& }end! f% ]* Y4 m! \9 L! X- q
! F( w' v4 D) V) J; [2 w% R
to initialize-settings! |& V( I2 a; Z4 l3 g! p
1 A- P1 V/ ^4 ~5 p
set global-reputation-list []
! G' n# _: o8 Y% ^5 Y6 ~- n+ p3 B* D. D; j y' _
set credibility-list n-values people [0.5]
9 ?% p+ l- }4 a6 v. d0 h7 i2 b/ F! z0 f `& R
set honest-service 0
. e+ x: N6 U2 E+ C8 G- m" D8 r' C- M# z3 L
set unhonest-service 0
9 G' t* r3 n( f% O; K
% R7 Y7 @# z5 s; _# d9 ?set oscillation 0
5 B& P: t# Y; x4 |, @& q T! q/ Y
set rand-dynamic 0! D$ P) \ p$ T' w
end
3 z0 L9 H- z2 h' F/ h, t4 I" A8 |" P5 G0 v
to setup-turtles
% f, F" y5 i* q, Gset shape "person"
8 b' d; o1 q5 p* Nsetxy random-xcor random-ycor
* }4 r8 y3 y0 l* pset trade-record-one []# B! J2 j7 j2 R( t
3 ^/ Z; G4 j2 h0 aset trade-record-all n-values people [(list (? + 1) 0 0)]
' M; ?' x5 X- t9 I
+ _# T: T9 [; C6 Y( ^7 iset trade-record-current []
1 f n$ d/ r* l M1 ~( x0 iset credibility-receive []
! ?" j5 @! F0 M! }- j9 n% N& }set local-reputation 0.50 F5 L5 S; ~5 _0 ?+ R9 d- Z5 V
set neighbor-total 0
2 ^! ?3 Z/ B# K+ v, W1 tset trade-times-total 0
( H q7 Z- a1 k' ?& uset trade-money-total 0$ R. u4 s/ o9 ^+ ^0 l8 ~
set customer nobody6 u3 N. `5 }1 p
set credibility-all n-values people [creat-credibility]9 O( V) n7 Q5 L+ A/ C" T9 X' M' v) z
set credibility n-values people [-1]
# p6 j" |0 z' G1 @0 k# Fget-color7 Z5 k% V, g0 _3 {) @! k
, r$ i) i9 c) }: p4 w5 }
end0 F1 R4 j, {# @' ?6 l
4 j! V, B9 d4 h& ~% h! fto-report creat-credibility
% b S! r0 V1 \7 sreport n-values people [0.5]
" V3 f' K; x; U; i' u1 Wend# _6 Q v. T' c( h
: M5 d1 Y. l2 q9 N$ Q
to setup-plots: w' ~0 z/ S: h. k$ X7 y
- I# `3 ?7 l* } wset xmax 30
- J& s. W ~2 r) J( L" l: N( g7 S# v/ ~2 d0 s8 j
set ymax 1.0' |; r4 \. F3 Z& V/ H( g9 T
2 k. O5 ?. n. Fclear-all-plots
* a" B' v" T3 R; s2 d
! w5 _ N% P: asetup-plot14 o( Y9 U- d7 V! r2 Q7 f
+ W% i) D" R% }/ B" K$ ]setup-plot2: h) E6 Q& D, b' C
3 E- {+ H& W1 `7 @ g/ b7 |setup-plot3' z7 l( Z. Q& T8 I$ E$ Q2 T& E" u }7 j
end
6 L' n2 \0 l9 f/ M* N( M( E! J& Y/ N3 F1 Y. g
;;run time procedures
; d c5 l6 @. m0 r4 k, g& q# J9 X+ d" D1 ^4 j( `( \
to go9 n8 X$ c, @: P
5 a! L$ `4 C: t) p- q8 W$ I
ask turtles [do-business]( A2 V( d6 x% K; b
end( @0 b8 o: K6 f, c+ D3 a3 _
% T# N- N, f. l, Y- bto do-business
: {$ L* Y3 L8 _( q4 a: f4 S/ |( p& p: ~7 @7 w8 s D
+ j. r9 P9 v* ^. ^( D9 art random 360/ ? u! _4 ]4 I$ J! o9 b
! \8 H/ P. |$ {
fd 1
2 q4 _, e" g3 K x8 g8 r2 ^% x9 Z8 C: u8 J4 M0 I9 u
ifelse(other turtles-here != nobody)[
* \" H; e4 v5 z' O6 P1 m
+ E& @ A4 T: r' j& v6 c$ {6 Fset customer one-of other turtles-here
. g, _' ]; A# ]# h: P5 ]$ ~9 d5 l0 S: R" |5 G- j
;; set [customer] of customer myself
: y8 t' d" J) i: x2 h
$ r& |% U* i ]0 A4 `set [trade-record-one] of self item (([who] of customer) - 1)( j% E: f9 b$ W3 U0 \
[trade-record-all]of self
/ k1 H8 Y: t/ T; c( z;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self9 Q( o% S8 o! d& l2 k' h3 E" y
% Q* V+ o+ q" i) s( jset [trade-record-one] of customer item (([who] of self) - 1)+ v. A- ~2 B2 b9 m% Y) b7 @
[trade-record-all]of customer
3 O" P& }( z9 w( X- ^1 T5 |. \6 p. F& M
set [trade-record-one-len] of self length [trade-record-one] of self0 d! j; B# c% _) n" M5 w
* g' t. s, X6 O+ W$ ]" w- G
set trade-record-current( list (timer) (random money-upper-limit))
& P! K% A5 l9 I8 w
1 l N% ~: q( E6 yask self [do-trust]
' a/ Y- e4 a1 L9 T! F9 @ |;;先求i对j的信任度
6 }' m2 D3 U! H- E" A- U5 F
3 H6 p# M" N A9 S, v/ a* aif ([trust-ok] of self)
2 ~) ~6 ~7 @ F: j E c; V;;根据i对j的信任度来决定是否与j进行交易[
; h2 V6 J% W. b& P, _5 v |ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself, @4 S5 q: {: a9 G% R H8 O u
! v; Q' I3 w: K; ]& j[
, c5 ^! s* }. [$ o
: k0 Z( F0 }# {1 {. A+ x7 I9 g) Udo-trade
/ N( L+ x5 ]" }0 Z1 l' [
, x+ ?2 ?! c: U+ X. t/ Eupdate-credibility-ijl
8 j- G! \7 a) b5 ]
! _9 n" h# ?: G5 `9 t3 D7 Qupdate-credibility-list# E$ _* N3 O) z0 y2 r! z: [
, G% ?. O2 z# S8 n7 `: Y& V6 J
/ {3 ?! B$ u7 k. v* r* Aupdate-global-reputation-list
8 Y m8 h: D7 ?/ V; |# Z; M2 W! ?& r+ _- i5 @! @
poll-class. X+ [6 J: Q* N& Z3 r, e* c( }3 ~6 ]
/ V. t! ?$ @! C3 O; i ]7 R4 Kget-color
" t8 \9 g4 a, o; x+ O" y; [: j, q% }" E/ V& x& m
]]
+ n. `4 D5 z: t3 X# F0 W5 _" Y+ D& E* n
;;如果所得的信任度满足条件,则进行交易2 E4 k& K( u6 ]* t2 E2 s5 G1 u- K7 W6 U
- V; ]! n9 ~: [: I; S* A# S[
: c# d7 J& J7 L4 ]5 q1 \1 x7 G. y4 G1 v% v. C# S8 p# }. a; M! R
rt random 360* I, Z2 y9 |# u& s' b4 {) l0 t3 l: m! A
/ U! Y# ?+ _& U/ e( Qfd 1
6 Y9 \. y( m, M: o. ?
4 d4 h0 X# _0 d# ?1 G- g9 N]: T+ B9 Y' n; E" ~2 H. V
! P" X! P! F( _end* z9 P# t6 S7 z
7 Q0 B8 q) f1 A5 w' p- Zto do-trust
9 T" q5 B2 P0 D# Hset trust-ok False
* }3 h5 n* f3 {0 g
+ [7 |3 o7 {& g9 {# r" j/ q- l' W7 m
let max-trade-times 0) x8 G- i1 H/ G- p, `
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
5 F8 h2 l/ W: ~* {let max-trade-money 01 s) k. y2 c" }( W1 f7 Q
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' w- [, y5 r7 r, S* N
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))2 K" C3 B9 L+ |) ~3 z# W( _
6 ^7 w8 Z& k& ]2 m. h* M: ~. M9 j: Q6 i" ]8 s+ V2 ?
get-global-proportion
+ [& D; c9 f3 J$ P- m, c5 F) V* llet trust-value S; [* J( w0 g! A( _
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)
8 b* M, n6 n* k* S! Iif(trust-value > trade-trust-value)5 a* G6 k; Q0 v, N$ w
[set trust-ok true]/ h4 d) ^" Z. S
end6 n% }4 A3 p t+ i5 S
/ j) W( u0 v8 N5 b# T+ H/ d/ vto get-global-proportion# `5 p. N' w5 s+ T B( b
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
: W/ }# {0 T% f: y/ X; N$ h[set global-proportion 0]# C* g' r5 h4 [% I
[let i 0
' R2 V) [$ h6 b; _! @1 r( u; G4 nlet sum-money 0
: {6 {$ i4 {3 t- owhile[ i < people]
! Q' q# z4 u% o t[: l. C) }% P# { h7 N
if( length (item i/ t# u+ M' f" Q7 O. i
[trade-record-all] of customer) > 3 )
" {+ V, _$ `% y% B) l- }0 {( e[
j8 t1 D) K" y% a( Rset sum-money (sum-money + item 2(item i [trade-record-all] of myself)): t! l$ C* T6 z& I
]: {" [$ p5 U4 X, T
]
) P9 I9 G) O; {3 \6 Z5 N- c( U6 Jlet j 09 i+ @( J/ C8 {* H2 R
let note 0
! m2 H9 C, a' x* l: Ywhile[ j < people]
* Y+ J; }- r" I& c: Y8 z( E' ~( O[0 [4 Z3 J8 O4 j$ `
if( length (item i
2 r' Q/ p2 w4 Z[trade-record-all] of customer) > 3 )6 S( g" m( d8 E
[5 ^. W" Z9 d0 f: T
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
7 d: X, }' e X* X. e/ {1 }. A[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]/ P! O! v7 n9 q
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
+ q9 p/ I/ w# |4 T7 e- P% m( ^5 w( I]( ~4 t7 W! m+ s5 J$ D
]
) B- ^: o, b& _. [% lset global-proportion note( A# h0 y( k. h) X
]
* F! w/ [3 X- @2 [$ d% q- Wend
: R4 ?: W: U" ?- L' T# c" A( n* V! k
to do-trade
& M, B. o, b! k;;这个过程实际上是给双方作出评价的过程! Q- s7 s: x0 [% C0 t0 e, |' m
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价. g* G, L- c& ~4 A6 O0 P
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( P( d, A: S1 H1 Y! p" D
set trade-record-current lput(timer) trade-record-current% j/ \5 ]9 N O! C) x$ D5 w
;;评价时间
% `# x+ }4 a/ p( Task myself [$ v2 d# c! d1 U% o |
update-local-reputation
3 q8 b" o, ~' x) n& ~( gset trade-record-current lput([local-reputation] of myself) trade-record-current
; ?9 N3 I' Q4 e* E2 H]
3 T1 v+ w% ~6 S& a' I; Sset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
& C* A+ L" s2 _1 G8 O;;将此次交易的记录加入到trade-record-one中6 \) u( D( p% j) _; ~/ K9 B
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 X" Z- P# p* E/ ]4 m% c
let note (item 2 trade-record-current )- L5 |6 P# u4 i3 m3 W6 J4 C U
set trade-record-current: ~8 i" q: K7 X
(replace-item 2 trade-record-current (item 3 trade-record-current))
& y7 n! ^7 Y/ m& |0 Lset trade-record-current2 r9 x3 x1 y0 k) j
(replace-item 3 trade-record-current note)
/ V, R) I O6 l, p1 X) R5 Q, ?$ d5 l7 \
) a6 o& d' A- Z
ask customer [
, |/ w, a, b( |& W* K- p# J) N! [update-local-reputation
; g: ]) v5 p# g) n$ F8 j% Pset trade-record-current
7 N9 C' R$ a# _- K6 D(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
6 W+ C# q7 @& {, ~- h# h# [& P3 `]
; ~+ y4 W2 Q2 Y! R8 J* H. U0 [5 p T4 a$ i- q8 {& F$ t) X
3 p6 d& p" X5 p
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer% X1 t! g9 o( J% E+ h5 Y
+ ~ ] [: I! ?4 ]/ Iset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))' j M4 t3 o4 y" O5 p
;;将此次交易的记录加入到customer的trade-record-all中
! z# N& ^1 e9 U, _& s% dend. K( C/ ]* c8 z8 O+ U
, b5 T$ K6 \" U. P; Q- V/ a/ J, qto update-local-reputation c- T- { f3 }: |1 P
set [trade-record-one-len] of myself length [trade-record-one] of myself B2 S8 o& v- M" [
" T6 z9 A, j! o$ C+ M9 B) E# C2 J% M
;;if [trade-record-one-len] of myself > 3
+ q; E6 }5 f' o+ X7 T! ^' |7 pupdate-neighbor-total
6 K K4 G, [! f- _& u;;更新邻居节点的数目,在此进行
, l( U0 ]. }1 n, ~let i 36 S$ p) C2 }- `- C3 X5 p5 S2 b
let sum-time 0
5 ?4 s( H9 E8 v5 m5 Swhile[i < [trade-record-one-len] of myself]
5 F. t* h/ ]' u- k! P2 ^; w: I+ A; b[
) T7 g1 [2 P& `" ]& ?set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
) `0 _& m2 i- \: W2 c( cset i
: h S" E' @! z, s/ F( i + 1)1 I0 |# _3 s) I5 ]0 ]& e; Q0 f' h( O
]
( s! T: Q) l/ F q y6 Jlet j 3
0 z' e* V: w7 W: I( s3 J, S8 Elet sum-money 09 @ e# ?# O6 p
while[j < [trade-record-one-len] of myself]0 c e6 O: v1 P- U
[
- m: [* }+ |3 u0 Sset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)5 d6 ?) @8 g+ i; T7 v% F
set j n* e5 i+ Q6 ?) G4 K
( j + 1)& F% v1 ?' t" l% W3 p
]
7 A' [8 ]2 a3 ^let k 3% g; C) a' y* T; T5 |5 O
let power 0: ~0 i _* B/ I% G e E* s
let local 0
( B! D1 k9 ]9 n( }: G! b8 u4 i6 nwhile [k <[trade-record-one-len] of myself]# a6 ~% o* E+ e @
[
$ S* i8 s3 S" U7 N! o* p! Vset 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 Q! ~. F. Q1 @* b+ [set k (k + 1)( ]7 t( S0 l5 g0 {
]" D+ n( ~& a8 j; i! X7 o! B
set [local-reputation] of myself (local)
+ O: D/ f5 S* e. Yend! V# r/ C) n5 x1 ~9 v
* M. J9 A+ K* f; y* Z) J o
to update-neighbor-total
- n' ~& f$ w* s6 L( X0 V R' @6 p* Z! ?
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]5 A! z' s, k! O) f5 t
5 K, l7 r" U e' R" |1 o
3 G) x# A6 T5 F$ j! i6 H" V' Mend: @2 X! ], v. E) T( ?
7 ` W# l& i/ B( @6 P3 Lto update-credibility-ijl
$ j; _; }! l+ w9 x/ A$ S' h6 ?* a8 C7 ^. [1 `( a3 _, H1 r: ~
;;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。
2 `& ?6 v3 B) {' h6 C$ m1 T6 `let l 0
$ S4 [& [) R% ~" Cwhile[ l < people ]5 ]" A6 n0 T; k! |2 t+ W- 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)
1 I9 @. W5 H& {' }1 vif (trade-record-one-j-l-len > 3)
6 H5 M* y. I6 d6 j( K[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
! A9 {9 n {1 f7 ^3 s* b8 Hlet i 3
, F5 X e! C5 _4 z) t7 tlet sum-time 0# ]: o/ q3 c3 l9 \ n
while[i < trade-record-one-len]9 A1 r" m* w( a5 `; r
[; ]/ e( F0 ~; B. @7 x" x
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )! B3 ~& ^) L' }- H% R4 a0 z: j, |
set i
) d: x: D1 c8 h4 {- U( i + 1): ?0 W- r: M7 m3 c+ y
]
2 X. A. O9 k! ilet credibility-i-j-l 0- @1 M1 n X1 H
;;i评价(j对jl的评价)/ n. ?5 V' S2 G" g0 {& `
let j 3
# V) U& I! X! l# T4 H( Ilet k 4
. Q# k5 w9 l( Nwhile[j < trade-record-one-len]
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2 e$ a1 t$ l5 T8 h1 N9 M. awhile [((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( P' K( f# T$ e6 o
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)
0 a8 ?+ `: O: s Gset j/ V+ i9 |( Q$ e7 W) ^
( j + 1)) F$ r, [2 G+ U! b
], L, C) f5 ]8 ~: I0 `( Y
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 ))
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))2 _# O0 \+ O" J6 j
;;及时更新i对l的评价质量的评价; }4 Y9 G1 L; b `# X8 z, ]5 P
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
: c% {: S9 N# O/ f9 Y2 lset l (l + 1); U3 W3 x% y0 k: k: W7 E! w4 W
]
j# d/ E! ^* r$ N5 n) L7 kend! A* Q/ ?3 c8 @6 a( p
' O4 H; ]& C% O
to update-credibility-list& I1 J: N8 x. J! n4 C
let i 09 C! f3 X- h# g( Z% h6 P. f: Z
while[i < people]
1 X% W2 h0 O0 A# \7 [$ D) w: b[
- }/ l: `7 w3 |! B6 Klet j 0
* h' L/ N4 b Ylet note 0
2 H% a5 C8 S/ S1 w& [. ^0 Q: wlet k 0
* l+ `# h$ H2 d- n* N;;计作出过评价的邻居节点的数目
$ j) o' u0 E0 Zwhile[j < people]" D* B+ r# ?6 |2 O, ]
[
" Z) S8 ]" X( H+ w5 e jif (item j( [credibility] of turtle (i + 1)) != -1)
& ]$ M! W+ j' c1 g7 X, x;;判断是否给本turtle的评价质量做出过评价的节点
7 K( n; P, C" t) z: |[set note (note + item j ([credibility]of turtle (i + 1)))
; v4 @2 o/ X( J2 u% |;;*(exp (-(people - 2)))/(people - 2))]9 q4 Y" m+ e3 p, e
set k (k + 1), G1 y) ]- d O! ]2 f" I5 o
]
2 X: T3 c1 r6 }set j (j + 1)
- ~8 |2 r% C' y% q7 ]]8 f% y+ K+ F/ U
set note (note *(exp (- (1 / k)))/ k)) T5 x k* k# q: c* U
set credibility-list (replace-item i credibility-list note)- H8 u5 q7 B( e; O& M
set i (i + 1)
( W8 S: V) [& f% J]
" [& M# D5 M: n5 f0 T7 c: Nend- g1 n+ F1 f9 ^, G/ l* k
3 s! f: T& m, x' S1 f/ |! J5 I5 x) Xto update-global-reputation-list0 r$ S8 R$ H; ^7 s. v
let j 03 r" |6 {4 e& O
while[j < people]
$ h9 }0 D _( _: V[1 c# D& M+ \; B) ]4 F# D( E) s
let new 0
~0 j' U0 ~5 Q3 K9 W;;暂存新的一个全局声誉7 O/ N/ Y9 r- v+ {" O" i. i
let i 0
# Q' P/ f+ L5 S0 A) h, ~$ ~9 u7 @let sum-money 0
3 Z! p6 {+ [8 C. w6 e3 D# _( K8 ulet credibility-money 0( C4 u/ g$ V! {% j+ M4 h
while [i < people]
9 y) t" d S) p9 d" @& l) ]6 Z* L[9 D, p* r) V+ c# s* q1 a! n
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
1 q! j# C! D8 y. a' o$ Eset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))1 x4 z: H; {6 {% `( f
set i (i + 1)
0 F# E; w" ]2 K6 r, d% u& s]' a6 ?" `$ c; ^( V
let k 0
4 M! r5 U9 I& ^; p4 ~let new1 0; L) {$ M( I$ M: u% _- P! D, [
while [k < people]- M' I2 _' A& v' ]7 Z+ d
[
; d: P, G) r2 Rset 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)6 ^) x$ I; L9 G6 ^
set k (k + 1) H1 G( f" r+ V3 \% x3 a$ W
]8 N9 @4 h3 x9 [) ^$ X- Q
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
! }4 X% B) A1 nset global-reputation-list (replace-item j global-reputation-list new)& L* K C( u6 U7 o6 c0 a
set j (j + 1) m9 a# Z& |3 t+ r8 K
]
* F: ^5 g# ]' k o" d; [end5 S0 o6 ]# w" ]/ ?2 z2 R) N+ H
3 R% j7 t4 K2 Z
r0 i% B5 k3 n0 Y: @$ q
! K. @# } ]9 l( q# R+ j1 [) V0 wto get-color
$ _1 e5 m P& H9 \$ O/ E: |( G; h. ]0 A# \( b0 m
set color blue
- B8 M' p. A% N. U# w. Mend
* D x- Z( v9 I2 P4 x+ x* i8 h# O$ i% m1 M1 d
to poll-class
0 y$ l! K6 ]. O7 J6 M4 \end/ p6 ]9 l- T1 W5 Y! ]
3 }/ B. `$ I4 }/ o" ^4 r) M7 |. u9 }' d
to setup-plot16 E$ z8 h% E4 r# o
( v! m" n; O3 ?/ b; aset-current-plot "Trends-of-Local-reputation"
9 j4 P! w3 B# W- m( f& I/ W
' \" G5 n" x. {+ e; p q0 e# _; Gset-plot-x-range 0 xmax
8 w3 f* |+ Q$ @! F) L
4 r4 s+ g3 x9 j+ f6 F8 wset-plot-y-range 0.0 ymax4 ?, \, o' w* ?
end$ H& I: q" ^3 p+ m
+ N8 v7 a ?+ wto setup-plot20 a3 E$ c% \9 J# N
8 Z+ S5 b6 f" B- _' D8 G
set-current-plot "Trends-of-global-reputation"( [. L( r! Z$ J8 A4 h% N
* o$ i- \* m" @8 |% z* Z6 S! }( n
set-plot-x-range 0 xmax. q0 C( H( b9 X1 `6 G* _
" l+ G p; _7 V' e3 w( c
set-plot-y-range 0.0 ymax
' y% I9 p5 g' q6 Y/ iend# b( V X: F8 b; `0 c
2 v: ~6 N R! b/ Z. K) H2 Xto setup-plot3
. `* B- J- S8 I0 k: }- O# w! G, V% H s& c8 T+ _* X" L$ M' N
set-current-plot "Trends-of-credibility"- p/ f: g3 i4 a/ M' f$ I$ j
$ N- H- D7 O$ l: i4 hset-plot-x-range 0 xmax
5 |% o: f" W5 U w$ z3 U* d5 o& H" ^" R2 K
set-plot-y-range 0.0 ymax; L9 q& T3 Q" w4 [: z" P/ N
end
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to do-plots( k6 b! G S: z6 a# X7 x
set-current-plot "Trends-of-Local-reputation"! E" L- [- B% D3 g" `9 _; d
set-current-plot-pen "Honest service"
! Z7 C9 g1 R! B7 H3 i4 B8 Lend
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5 U( o" u, u2 h7 w[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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