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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- q. K0 ~) u. s
globals[' G2 R+ n8 e6 p: s
xmax
/ N/ s+ Z8 q- t! }6 e2 d' Nymax0 b; y2 ?2 u! Y, C0 U
global-reputation-list
& C4 k" j: T) G. c( R
" T7 S, M5 i% P2 M4 D5 ?2 Y- P8 x( k;;每一个turtle的全局声誉都存在此LIST中% M3 w/ ]" u/ U+ F- H0 e6 @
credibility-list
, A; A( L& Z! E% Q. Z* c" `;;每一个turtle的评价可信度
. x; Z. o w2 x6 e" Hhonest-service) w9 y" J9 d9 w* i0 z8 u1 K/ v
unhonest-service& O* l3 s# b; d' `
oscillation
: Z0 S% X9 K" u Z2 E* V" k4 prand-dynamic4 U( g4 f* i/ j+ i5 G3 ? Y
]
C4 r8 x4 G7 r, ^) O: l& F
& L% d/ m! E f1 H3 R! u8 Gturtles-own[
% V4 s+ T2 ^ {/ c* _# p c* Y r1 Ztrade-record-all
- `7 L! D2 f2 Q4 G9 c3 z;;a list of lists,由trade-record-one组成 D6 {& @ R* M- g1 Y
trade-record-one, g( l* O: I& X+ 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 @1 M1 k, O5 V$ X D
; p2 _8 } k# F7 h: e/ j;;[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]]
5 X( d" e; W9 ~( v 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]
" P$ }( P3 V0 |* b4 u/ w7 z0 E6 {: tcredibility-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 O8 P0 m0 T0 V# P+ e/ P/ s
neighbor-total
: G2 S0 f D' V' `3 K;;记录该turtle的邻居节点的数目2 P x: n4 o5 @+ b: H
trade-time
9 q) \' p4 l7 S5 g. b. y/ W;;当前发生交易的turtle的交易时间) Z' k. o, v/ Y3 Z0 c* M' a9 x2 Y2 b
appraise-give
& C: ^, k |' k;;当前发生交易时给出的评价. D6 ~5 E0 o& A s% [
appraise-receive
8 J1 y& E5 S, v9 u1 ?% q;;当前发生交易时收到的评价; D0 R; `3 S! {5 I# g& |3 a" m& a
appraise-time- p5 r$ ^& G( r+ U
;;当前发生交易时的评价时间! M! a. ?! A7 H; h" B, l! b/ u; D* D
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
& C, U9 i" Z$ xtrade-times-total, c1 \; t4 S0 O7 k5 A
;;与当前turtle的交易总次数
! ]) Y0 \4 ?" w. d# j g: O4 Btrade-money-total$ H4 N! u p4 K' M- s' q
;;与当前turtle的交易总金额7 a8 k! ^5 V+ X$ v2 @' ?% b
local-reputation
4 q2 z* O3 b/ E9 k% p0 qglobal-reputation* E3 p: X: k6 v
credibility
# g3 }1 W- s4 Z, _/ ?;;评价可信度,每次交易后都需要更新; ^: g, I2 |1 d
credibility-all
' J1 r, j9 t/ i' h9 p7 ~7 T, A;;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 U8 B( m: c3 }5 e8 B* l- `2 c1 x R5 S. X8 j" `# l3 f* o
;;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0.53 z f1 t* B. f0 m
credibility-one. `/ J9 A2 J: D
;;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
# U% w3 f) N( {' x, k. Sglobal-proportion5 q' O& P q1 i3 G0 e9 C
customer# t- h- M. _6 u" L" _
customer-no$ |/ `* r% Q) p7 c$ o6 U! Y
trust-ok
8 O5 }: g- i. _' p. ztrade-record-one-len;;trade-record-one的长度
& e' u! R- k% i* O% n6 [$ G& G% c]
' m! w# A, j' x' R' {2 W3 `' d0 P: M! \' T
;;setup procedure! i5 Q9 ]/ s( f' J
* n9 n, H8 K: c( x. z3 T
to setup
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ca+ G& L \4 I# \% [# i: E
0 F T% l+ X+ ~& L" `! h
initialize-settings; k/ f& ^" H* T8 f3 z4 x; F0 f5 A
1 T( x" n! J6 i. @) a6 l( Acrt people [setup-turtles]
. H5 }) J' e [& [; M+ w T) P2 w, s' @
reset-timer4 {2 Q6 r0 G, [; K- ?, q
6 [1 r4 P- V ~
poll-class- r% v2 A. J; y9 [7 t! R8 E
7 x' c! R% o1 w: ~+ v% W- i3 \" I
setup-plots
. q6 k% M1 v% X' _
& t+ m2 L8 \, P, j/ d* |do-plots
& G1 Y' k2 U |$ @end
+ X! I5 j, S+ ^. e' }6 [- B7 v# u
' b% t6 g8 `0 Z( Y: X- xto initialize-settings
( q* t) I" b; t0 }; ?
7 a: }3 ]# I4 v1 Iset global-reputation-list []# Q6 }' r7 f6 N% r4 \9 A, @5 \( T
: b% Y3 O# I. n: n/ qset credibility-list n-values people [0.5]( ^/ B8 t: Z; O* w
/ @! P) {* E$ d7 ~set honest-service 0
3 b* S& n$ M8 \# c
5 s3 _- l. y5 V4 R+ Z/ hset unhonest-service 0( J3 V; \8 k- @0 A8 F. f
3 Y1 E* f6 z1 k$ C* [set oscillation 0
: L' z4 B' P- M V
' z# ?; M" y, c( n/ Uset rand-dynamic 0' v1 d; o8 U5 d2 S! ~) Z
end E6 l7 t* }4 J1 H3 R8 J8 b
/ o+ M# G2 z" k4 z1 P* o+ t v2 sto setup-turtles
1 n9 w3 h1 l% J; F" Z& v1 _set shape "person"4 O0 G9 F* ~9 A; U: A4 p2 t1 d# \
setxy random-xcor random-ycor' `' j( F" ?7 F9 V P
set trade-record-one []
2 A" _5 \% z$ Y/ t0 P
& c' u8 K6 w6 J! V' N# q+ `set trade-record-all n-values people [(list (? + 1) 0 0)] ! T) S: c* d V, f$ ^6 l0 j' `
3 B3 s8 U' u# Q( Y& oset trade-record-current []
% {' W$ v M$ B7 _" C( Y+ Dset credibility-receive []
/ b1 _. q) I: B- gset local-reputation 0.5
% H4 g& X+ {, Y% b- m& vset neighbor-total 0
+ j* j* E* _2 a% y- p" V4 Qset trade-times-total 0
( p/ D, N% q4 k: Y- q( oset trade-money-total 0. R0 |: Z- z& X+ D! _ z
set customer nobody6 X# j# \( O" U$ ]
set credibility-all n-values people [creat-credibility]+ h3 b s; j( h7 S) R7 j1 l) X
set credibility n-values people [-1]" s1 W) J) A6 b" j; u
get-color
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( E- k' |* h( u! l* q6 Mend7 p; X. x( l2 E+ }# Z% k1 k9 C7 b
+ A8 t, a3 Z0 l1 {to-report creat-credibility L5 ]4 r) Y; ?# [! \5 h
report n-values people [0.5]
. f! h3 R# ~( _! U. a' Mend/ f# O2 w! }6 A
5 [, l! H. V- _# H; U: @
to setup-plots
" b! l6 A& r1 I5 N, T; T
! t: [3 {, P0 j% |3 Dset xmax 30
4 }% w: q& F& f8 z
/ S6 Y. r' L- eset ymax 1.0, ]4 L% d: U. ~ x1 v7 Z
8 c/ E0 u0 u0 U9 s; xclear-all-plots
; u1 P# S- o8 [( |6 Q8 \9 t" I" [# Q1 C8 N% ~
setup-plot19 E5 h0 c9 d7 @. r! w% P
5 I3 C! a' _$ v& T( w, l6 k6 V
setup-plot2& T4 P1 z5 J. B: r2 P
# g# k1 H- |( O; l9 Gsetup-plot38 n! |& ~1 B3 S/ `" ^
end
6 h+ q- [4 e7 W5 y+ T0 F: [
! k3 @4 s* S* J& B4 C;;run time procedures
k1 J1 n! U3 j9 l V1 f0 Q( {
. O4 e9 j' V- `% m" H: Q. Bto go
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" `1 d! S( t! f3 G3 ~: Mask turtles [do-business]
4 _8 _- ~! n' E, P- Yend; R: t- T4 s; \ a/ C5 x! L; u) V
V/ [3 S; f ]9 J- m# [- M6 U8 j Kto do-business & e' E; `1 a5 A: e; N
, _# L! t/ ^$ ]
q% U- N& ? irt random 360
$ k$ h6 F6 A- l2 A" J: m7 k
5 m( L2 K4 _; ]( K' P& ?+ N% h- w9 Qfd 1
* D8 @5 I+ P3 P" I& |
6 I0 t' i0 I* [0 q2 L' Aifelse(other turtles-here != nobody)[/ p- u3 ]; B+ S
0 k$ z) P" G/ I- s# z6 R
set customer one-of other turtles-here
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! k8 B! t& r; r" e4 @& o* K# `;; set [customer] of customer myself
1 x& U; {- L, P
" P/ f0 R; g4 w* N: Fset [trade-record-one] of self item (([who] of customer) - 1) ^5 S0 u V1 R& Y0 c* @
[trade-record-all]of self
5 |- I; P8 @+ A5 k2 T% E;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
Z a) v( f+ z) z$ S+ g# h1 z
5 ~/ G/ W5 Q) w4 X3 M$ N. [set [trade-record-one] of customer item (([who] of self) - 1)
! x2 t. U& C3 H6 o$ q. g/ O[trade-record-all]of customer
; ]/ @. X$ t- h# ]! E6 l8 i
) i3 I/ z& E: t9 h3 nset [trade-record-one-len] of self length [trade-record-one] of self
$ d8 a* b. y `* z( [9 i9 Y" ^3 U- s/ X! U7 Y6 r0 p
set trade-record-current( list (timer) (random money-upper-limit))
5 s1 p9 B* T) _& y) k) W* T ^" H9 S
ask self [do-trust]4 ^; q- [! r9 h ~/ V+ l' {: q
;;先求i对j的信任度1 U) w H5 t, J3 _& t
! e. J0 D5 e# k1 Z5 D jif ([trust-ok] of self)
1 I/ c! j' u' N4 t/ c;;根据i对j的信任度来决定是否与j进行交易[
* P8 i/ `+ E, Jask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
7 T0 C( G1 Z( |6 B2 b
4 `. \$ i1 ~$ w4 x[
8 M* B0 Z3 g5 r5 W. N
( @* k$ ?# D% L \/ c `( M- s% ~do-trade' ^9 C: f5 A- q$ Z% m9 f
) Z, Z) s9 k. M& }. [; N8 gupdate-credibility-ijl
1 r# X+ T. p/ E$ ?! p0 K0 N! r; E; Y5 y: x2 S
update-credibility-list
% @. Z. l- J3 m- L+ b6 z0 ]; ~% m& T
- _& ? M! {9 ~- Fupdate-global-reputation-list
9 C5 G1 c7 R1 S/ l3 W3 ~+ A5 Z6 f6 {1 I$ t [1 U
poll-class6 w$ e1 g' H) R, F
/ _+ C1 q' L3 g5 [- T9 y
get-color
" j, o! o% `" {2 k& c+ _0 m9 @$ z! r
]]
# e$ S' M0 _! }3 V" D y7 u. b# g }$ s
;;如果所得的信任度满足条件,则进行交易/ d7 Y8 S8 W# l/ K" W3 ^
% t: C7 h |2 ]
[
- {/ ~( B- z: T* i' d
; x; T. L' f+ f X+ ~+ a# X+ J" irt random 360$ U, u5 g! _% }& _8 U/ {' W
( J+ g& O. Y# B- A3 Y) s& c
fd 1
8 {1 ^* S( ^- a% |
9 J# e$ j J8 U3 v6 z. o9 v]
) I; S0 O- H3 c# a' P8 u0 x: a5 ~2 ^8 L' x
end
, N# e& Z. f" h; t+ p
! k1 u/ w; X K! w$ X7 w" l" lto do-trust
% `8 {7 K T4 j1 E0 P" {, W. L1 ]set trust-ok False! i" Q7 u: _( W# F5 }* O4 l
' o0 A. j: S, _
; M8 E3 E- T& m. X+ a5 I1 blet max-trade-times 0" w5 w% N# r( C8 s
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
! C& c- {* j: G% Mlet max-trade-money 0
* O0 d3 W6 B, J- H; H7 e- F! Jforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! M2 e+ J d# rlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))! a X6 L# K% r( O- J5 U2 P8 p% F
, K) Q9 z! e& I- B3 L
$ M& I# G6 M4 g9 V; {5 C
get-global-proportion& o( j r# a; [- ^4 V. p" A* E
let trust-value
5 F3 r5 W. S, N" qlocal-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 A8 G9 E2 {: _& r: U7 k/ f
if(trust-value > trade-trust-value)4 }1 ~, d& A; w7 N( [
[set trust-ok true]
1 ^8 s7 z/ A4 x+ Vend
0 g) U% U5 H& a; w- ?0 E& G7 y) v# r5 U4 o# M' }
to get-global-proportion
) z! X' H) J9 yifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 F: i2 k; K# ?$ q/ L1 b[set global-proportion 0]0 q% ~+ U6 p4 u+ r }; q! H0 v }9 O
[let i 0
( d5 m1 u3 i g6 @6 E4 Olet sum-money 0' j' s- V+ ^/ v; T8 n9 H
while[ i < people]' f7 O: w6 h% \
[
: ^% o: p3 {& U5 C% J Y* _if( length (item i3 i9 V! q/ y) v4 u! g0 r' N
[trade-record-all] of customer) > 3 ); O# V' l& A+ k2 {
[" g I' {4 K0 z d- f _; o- K
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
( z* R) D5 ^ X]5 i7 |! l) @! N; {8 k
]
r/ h+ x% `( t5 U# G hlet j 0, t; j: `% {# t+ r. n9 V9 a9 m! ?0 Q
let note 0
# T/ B# P- p2 l. N' D' Pwhile[ j < people]1 ?0 [/ d* @ P; V4 m
[% l J0 Y! [3 F. t
if( length (item i
* M( v; j! f( H3 I% L( x+ x5 H" Q[trade-record-all] of customer) > 3 )6 K; w" m+ s0 M" J$ P9 E/ Q, `. h
[4 s8 D( t+ c. X8 o+ }
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)) {( w6 d1 ^$ e! U0 j, K/ c* T
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]5 R& I p( ]$ @, @# V- P( E
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]4 O) o* }/ A* A4 s5 A# q6 p, n; [, l8 C8 j
], D+ |/ l" i$ ~. H/ |
]1 |5 k9 y3 I+ {: n
set global-proportion note
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end6 S' p+ m8 b& O! S6 L
/ a* s* L3 x ?4 a# G/ l/ r
to do-trade
. V/ M0 p/ x$ e2 x. Y" ?* p;;这个过程实际上是给双方作出评价的过程# ^5 M5 E5 l" d% g$ h$ d- {
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) Z6 ~, v0 R" N+ M& G* Zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
7 p. r0 y( A' S0 O h( Hset trade-record-current lput(timer) trade-record-current# w& o) ~; d$ U' f8 X1 E
;;评价时间
8 G8 J* \% c- O; D" Yask myself [. |5 t$ Y0 [) | ]
update-local-reputation
# @, L+ }1 B D( Oset trade-record-current lput([local-reputation] of myself) trade-record-current; X0 q( a; @/ R) K9 @2 E
]
/ d7 T: Y9 a; Z2 y/ Z/ {* Lset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
) L3 T( K3 I1 x% t;;将此次交易的记录加入到trade-record-one中
- j: b& Q; k4 Y8 @+ Mset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
! ]' Y- S+ L- i! Alet note (item 2 trade-record-current )
) i0 v. W) q; _8 y3 [4 ?/ yset trade-record-current
8 _( e! K) B: A6 s1 O0 T! |. W(replace-item 2 trade-record-current (item 3 trade-record-current))
# P1 S9 ?( M( sset trade-record-current3 P2 s9 F$ K, `4 B' p
(replace-item 3 trade-record-current note)+ a) a# [% T0 x4 t
4 C: ^, m+ G" ^1 K
% F. R/ W8 q+ ]7 [- {* iask customer [5 ~- S' `9 v c8 U
update-local-reputation! ~9 {/ A5 ?8 p/ l' C+ |- B2 Q
set trade-record-current
) y+ s+ h% E0 S8 {(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
$ y1 A* i$ X/ C/ y% d! V. P/ ~/ K]
3 w& `# W/ h6 Z
5 Y$ ~0 e# v. @/ i, P' ~. v( ~1 W0 w
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
1 t% E2 T0 Y3 Y' f* [1 X, W! K$ q5 J. j# E1 U: h: b: w( Y6 c4 ^
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))5 W+ Y d9 \6 m& V+ X T$ N% a0 E( d
;;将此次交易的记录加入到customer的trade-record-all中
3 ~! Y" {+ m4 T3 ~& [( Tend9 e' \' z5 Q! l5 o2 i
5 v7 P. i | y' Vto update-local-reputation3 J; ^8 d$ _) D# H3 Q& r" q* B
set [trade-record-one-len] of myself length [trade-record-one] of myself" o4 a/ a2 R: ]
: h: T! N0 [4 S0 W5 Z
3 g! p3 y8 G5 O7 l' U7 a0 U* D;;if [trade-record-one-len] of myself > 3
3 A9 ], g5 O" F# o, E0 yupdate-neighbor-total
b+ V( r+ j% _- e3 n# y;;更新邻居节点的数目,在此进行
3 e/ V& B2 {' [4 Q" F5 U/ V! Wlet i 35 Z; b$ r' J8 x, u
let sum-time 0
+ l7 N& X# A4 t Kwhile[i < [trade-record-one-len] of myself]+ D6 n8 [: {7 d! H$ V
[- n. W3 }; m" k7 X
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
$ L8 R5 |7 f; F ~1 E1 B; v! Y3 s$ [set i
( e- B- A/ B. b( i + 1)9 [. x8 a( i0 t; H8 P
]( \) x1 G4 F( U* D1 [, s" j5 W `
let j 3
* y2 t& a7 K, ^% X9 `: T, m; n0 glet sum-money 0
1 z* {& f' j9 a5 r7 q {while[j < [trade-record-one-len] of myself]9 R. B7 U, ?! I I3 t
[" @2 x& L, q7 \) {* J0 K5 j* l
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); y' T( u3 l; y( R$ M
set j: u; X) x' Z; N
( j + 1)! p: g5 `6 q- y! ~
]% O. A. h; F6 G3 |4 c2 [& b9 \
let k 3+ V5 z& C' F1 l/ M. u! P+ d6 q
let power 02 K3 t! L3 b% h X) N* n4 U- v
let local 0
- b; R' {( T$ E5 Y; Lwhile [k <[trade-record-one-len] of myself]
6 i2 x5 D" J- b: t0 C$ [[
) T! F& R8 `$ N6 [1 aset 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) ) p% m' T( f8 O8 {3 e# B
set k (k + 1)4 w$ }' s* ^% N* n' i5 X
]8 k) X. u0 ^3 G2 q" }7 j& C, i
set [local-reputation] of myself (local)5 |4 E# h. x$ u; Z, A- y; i) b$ K
end- I8 f' d( G, m' E$ x: a
% X4 e3 M; A7 S) P7 jto update-neighbor-total
/ z, }* B8 j& {4 s+ P+ Z1 f q
1 e" k4 H( }+ zif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
) k; E5 q0 E" P, b
& |: u! |0 A" K. D$ c V
! l, D1 a# L" L! R+ g# T Q% ~end
( }. {5 K& i7 Y l9 X0 R1 M4 _8 M1 H+ x: @2 a
to update-credibility-ijl
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' X. E+ b+ i* |* B+ s7 x) E;;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。 E3 e5 C, M' H( Y- P
let l 02 T5 ~, D6 K. V: L: |7 [8 z
while[ l < people ]6 }; h$ U( \% q$ k1 i z
;;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
7 _' C" a; J' m2 K, _+ m: }[
8 T! E. D3 r% j+ Ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
0 r% T0 x" Y* Cif (trade-record-one-j-l-len > 3)# i& a0 i, ]; u4 {$ o: T( y0 X
[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
5 k) v9 U8 C; H( u! C- h, Elet i 3
7 w4 M6 `+ R4 Y N& slet sum-time 0' k: O/ |6 P# v; s9 {/ u- q
while[i < trade-record-one-len]( y+ Y# u) Y4 |8 B2 |
[
9 z9 x3 b% m6 c6 C. `" vset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
4 q, A- ?5 \7 w% \8 p% S, T' Yset i$ L& a; L! |3 w7 V9 w
( i + 1)
7 x A" E3 `8 J5 X# |]
5 a$ I1 U- _, a9 H/ @* K4 @let credibility-i-j-l 0
/ e) Q1 W3 E' L1 b: t;;i评价(j对jl的评价)
; F$ B4 D' R1 P. |let j 34 u- K' C8 ]9 a% @% ^2 [
let k 44 `6 Y# B) a# u0 s3 @
while[j < trade-record-one-len]! U" y% x; X# i8 b5 {/ n6 `
[' t* \( H1 x; f( K& l6 @5 w' @
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
- k% X4 ?" G" c. J0 G7 C5 }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)
. e; Y4 M$ Z: n3 l$ u. q. f1 pset j
9 B% b. a0 k3 s, W8 z( j + 1)! H X' [7 N2 K
]
9 O! c) b% P# xset [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 ))! y8 ~$ W* {6 {: L3 x x
) G+ U$ ^/ o0 z0 Z8 J6 ~
6 _. _6 D& z# X8 q# ^8 @7 r7 g* `
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
( s1 h: V! P8 Q% q; Q1 W;;及时更新i对l的评价质量的评价! G; B/ y$ N* _/ e
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]/ z1 f6 U& L! N/ `4 C% z8 f# @
set l (l + 1)
5 F& ^; O2 f! M5 N- i! Z5 T9 s/ G]
$ I9 k# {* }8 Gend
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; ^' g9 g9 y; y4 h8 J7 J1 \to update-credibility-list
" l. z0 c( {5 f3 hlet i 0+ @9 e7 L, D7 R: y0 y5 h* ?1 n% d' w$ R
while[i < people]
+ o7 ~: c, ~! p3 S[
0 o8 i8 i9 E% Plet j 0* f7 W" I# Y; |0 P
let note 0; |* {& j+ U6 L, A# e
let k 0
& h0 y6 n/ Z4 c# } o1 q;;计作出过评价的邻居节点的数目. ^2 t, C- N; o! Y) a9 j" n
while[j < people]
2 g9 v# w; f- @" ~7 l3 Q* P7 ][6 h. \0 p) J2 C0 r
if (item j( [credibility] of turtle (i + 1)) != -1)
, X% k4 H$ W/ ]* Z* p. k;;判断是否给本turtle的评价质量做出过评价的节点, V- I- N {! F a2 V: h( J
[set note (note + item j ([credibility]of turtle (i + 1)))
/ q0 k4 e# e0 d8 N. p7 F;;*(exp (-(people - 2)))/(people - 2))]
, x8 e @( y8 O! @: b- b0 a% \set k (k + 1)& C- r: |, L2 \! N% O, K
]4 Z% [4 i1 s H+ ^: s
set j (j + 1)
7 b+ \+ O% ]( g. H; u6 ]1 S! \4 T]
/ H" _' G. U$ S* F" s5 ^: [1 `: Qset note (note *(exp (- (1 / k)))/ k)" D8 r) P7 ^3 |9 K: C0 w: U
set credibility-list (replace-item i credibility-list note)( i$ v, u6 e9 q: K# f% K
set i (i + 1)
v% D3 |5 z W* @, }7 T/ Y' O7 {]1 w: g6 l3 ^9 E/ x4 u9 j
end
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to update-global-reputation-list. Y) Z4 V$ r3 F! K9 e0 p) i6 b, m) H
let j 0/ F& m, T6 E# Z+ x" \' A C' q
while[j < people]
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5 {% v5 c& X3 y5 ~3 i& N& c, Dlet new 03 \4 O ]6 l6 L, i7 ?
;;暂存新的一个全局声誉
L! r0 L J. S1 g6 @let i 0 u/ J- ~# L. ]# R3 J- e
let sum-money 01 E: i5 c v7 e! V6 W: V5 \3 u4 K: q5 W( D
let credibility-money 0
, E9 W% o$ e" w* pwhile [i < people]5 T1 _/ D$ ~4 Q7 y. `. `& p. v, r
[
6 U: U' k; E G. Xset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))+ j6 e3 j' R& V! M9 B- T
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
8 m! b. s0 a9 V4 ^/ vset i (i + 1)
z, z- t4 A' t1 D]6 ?! R F, T& `0 Y
let k 0
; T0 x5 L# \3 g* C0 j3 L8 plet new1 0
- S: A" S" y4 L5 e( C, o/ z. N( n* ywhile [k < people] x& w* `/ X8 Z' l; i$ z4 R
[2 T! p x3 t0 e" ?
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)
, R& g. X2 F1 p4 X2 H3 D' J, Y& J+ Cset k (k + 1)
; `. @3 |; T$ _( _# p3 }]
$ P7 o# K3 ~; u: r9 Eset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 1 C- @! u0 t! Q* [8 ~& H
set global-reputation-list (replace-item j global-reputation-list new)5 H# E/ H4 ^2 P2 p
set j (j + 1)$ W/ V6 y1 k \: x, r$ ~, S
]! _- l# u& n9 o; o2 x
end) c) J0 D R- s5 z! \
( j I0 G# Y% m, u
6 A3 D/ \$ e; q$ g7 t* h- X
, I8 d' \. O& Z3 dto get-color- o7 h8 ?/ d. w* a7 X8 Y" I
6 n+ B( g4 ^; ~+ u% V- dset color blue: l$ k5 ?1 u6 g! Z. @9 m, }( ~, }
end
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2 [7 h% m2 w6 j: E+ yto poll-class0 k/ M- H: `5 F0 @, J' \! J
end
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4 U" R0 t, A; S' `) D" w4 Y4 Lto setup-plot1
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$ ?# E! p. p: H$ k' i4 Gset-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax* b$ v! t( j2 j; y* Q
5 T, c4 N$ m9 T9 F2 A( w# J* _set-plot-y-range 0.0 ymax
/ Z3 `3 u: e" n- ^ z: aend: d( O! N7 i' g
9 [' S; P5 J; ~; `2 l0 A
to setup-plot2) t/ i/ u. a8 b; u* I2 m
- F$ E+ A" E! R. t9 jset-current-plot "Trends-of-global-reputation": ]; a* ^7 m) _: s
5 E& _9 p1 a$ y" ?
set-plot-x-range 0 xmax$ W: L% v: {2 i% e: `5 G* {
! z# x/ D# ^3 o# n! J" T! y Lset-plot-y-range 0.0 ymax6 D" c# w- a9 C3 L% E5 B, }" _5 b
end0 Q" N% ?( O5 A5 L/ [& d
" B6 }* M- ]# k% N; M
to setup-plot3
) Q* }' ~ }5 c1 A6 f$ M8 f
+ ]4 P: w3 [$ G+ @% qset-current-plot "Trends-of-credibility"% K* v+ t# @! U4 T) i! V
* z* u9 j8 K( F3 Q, g" Mset-plot-x-range 0 xmax& C6 ]4 {4 R, E9 [! x8 g) P. t
/ X( @& G9 V4 \3 lset-plot-y-range 0.0 ymax
~: p+ G7 d/ S" U- O3 Y0 I* Eend# @3 [! J( b3 x- o% B
! j+ u; ]' H, b% |" j$ G$ p2 ^0 Uto do-plots
# [2 n5 K( U$ Q' Y; m# U& {! eset-current-plot "Trends-of-Local-reputation"( j+ ~2 Q- P1 Y4 v7 e; P
set-current-plot-pen "Honest service"' G7 G# @$ o* D/ r
end C8 b; Z5 r9 c- W! l) B
' y4 R! K" Z* }3 }! p2 }6 [[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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