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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% X# f. o1 k/ K, r
globals[
3 U( S( Y# [( m5 e( k4 z. U) B0 Zxmax3 u& ]) `+ o) Q* P; _8 V6 y
ymax
2 z) h4 r, p. G5 v: ]& u$ Xglobal-reputation-list+ l- r. |& _0 N
. Y; e: G* j7 j. H" `3 K- Q;;每一个turtle的全局声誉都存在此LIST中
: ?# |6 S6 p- f# E ncredibility-list4 n, _# S/ L z& ~5 a$ A
;;每一个turtle的评价可信度
7 Y" B/ ] @1 g/ U/ F7 xhonest-service0 ~; P' s1 A6 ~; L( g5 A& x1 P9 s
unhonest-service$ y5 b s4 S' t9 W* ]
oscillation
0 l# [. h9 G* A* a7 e( ?0 E' \rand-dynamic+ E2 J }6 g. o
]$ }$ f$ W3 b: {/ n
: A! z& s2 `* c, Z3 m! n: y
turtles-own[4 M6 b3 d- S0 f$ ?3 Q8 M
trade-record-all- y' c. F' H% P
;;a list of lists,由trade-record-one组成
$ O8 r3 e4 f& _1 ^, O7 Otrade-record-one1 r0 r2 g( z8 l
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录: w/ v8 P; B1 Q! b2 ?; C( t
7 ]4 w! l! t; T% c, m;;[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]]
6 Z/ ]' `/ [% ytrade-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 l! z+ B1 p3 {$ ~7 l' G
credibility-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
) R: u: g8 f2 H1 H) v* P6 T3 i D* Tneighbor-total& S2 }* r5 ?2 @. |* N- N
;;记录该turtle的邻居节点的数目
5 `& L6 e( P6 _trade-time
: M9 I! t. {, E2 w;;当前发生交易的turtle的交易时间
2 m4 ^3 c. D9 S' B( W5 t5 w, Iappraise-give
# [& T$ e7 k7 I4 E;;当前发生交易时给出的评价. { U/ ?" K$ D" R$ r4 U; _
appraise-receive% V/ m% H4 ~/ P$ b6 r e. r) F4 @
;;当前发生交易时收到的评价2 }, x+ d- P9 L5 s( b2 L Q
appraise-time! M" f0 [" q% j; K( |% a
;;当前发生交易时的评价时间
! T- ^8 ~, D1 P) Dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉2 f+ x2 t- a8 b7 E; c% ]& d' ]2 R
trade-times-total. _ T6 ^; v8 S/ i; F- Y
;;与当前turtle的交易总次数- Z8 Q) d N! V- Y0 B
trade-money-total
% |/ N) n( O: @% ?+ P; l;;与当前turtle的交易总金额6 r* \4 K: n) o& o. W9 E
local-reputation1 {- Z c4 u; Z5 l- F( H0 F* a2 y
global-reputation( D. G4 [: ?8 T& ?: g: g6 n
credibility
. T" _2 q1 z& A& Z;;评价可信度,每次交易后都需要更新7 ]" f" ^$ J4 O" M+ y
credibility-all0 I; G' l1 @/ }" X
;;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! w) f, `+ O8 {' H/ d$ w
/ c' K, X' `, }: f1 Q/ e$ f- u( w, I;;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
: z+ }/ J5 l. Y5 t9 w$ N& Hcredibility-one
5 ~; j( x' u/ x: u;;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
! }6 b$ ]) _8 w: c# O9 H8 N) Eglobal-proportion E5 l( e& G; V
customer
$ D4 Z7 I) }1 a& K2 Acustomer-no. n6 S- Z9 C g( T" Q4 v& N
trust-ok& k0 l0 |" H+ _# r# y0 P1 L5 ]
trade-record-one-len;;trade-record-one的长度
4 u, l% M2 P; S]0 R1 s" G4 m# V# o0 F/ _
. ^" h+ ?% @0 D8 G! [9 Y5 R @4 I
;;setup procedure+ ^7 K# a% b4 w" K' h8 P/ i
( D: T" [# z& ?2 }" O8 x& x6 fto setup
+ |2 `6 G" @& @: K, l* M; \$ q, h* B* Q, R$ m- v; ^. A: Y1 x1 |6 y [1 y8 x
ca
8 `8 z6 p: ?9 Q' Z6 a3 o. A/ h) q& }4 W' a( U
initialize-settings8 _/ A) ]1 X0 s
7 G+ F' E3 }1 P3 l
crt people [setup-turtles]
z- K3 f* J5 G/ W
# L3 I) e S$ W* {+ W3 lreset-timer4 e/ x& X' s! k8 J4 U- |2 M' u- q
1 j: t. h. X# T/ ]/ w
poll-class; z( M# f* b# U" c% I
: G! F! T( y( N$ M; V5 |: B% l
setup-plots. E2 c6 W/ U; |: U4 w- q7 E
P' R' Q% Q+ x+ \
do-plots
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& }7 C. D7 s" c4 Hto initialize-settings
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6 W2 S* |6 {+ ?% K9 z8 c3 y& ~set global-reputation-list []
. k6 P. V9 y; m' ?' F' [% h
- _$ [" o) d3 S aset credibility-list n-values people [0.5]
) \8 x( @4 {) I" r4 Q2 @2 K' k5 q+ D2 X- H- j
set honest-service 0
: B* h# J! o, U& x, f! o9 Q6 _& N$ H1 g
set unhonest-service 0% u: N$ {) a8 R1 X: B$ ]0 D
! H% R1 [& k4 B; D
set oscillation 0* o& H$ j9 q- T3 ]1 P
! m0 X6 s- W- t1 ?) m1 W
set rand-dynamic 0" u% w$ i. z, Q
end$ q) g, U; W& S+ F, J9 |, b9 t
1 Y4 t- q5 [9 h5 f" D7 w9 Nto setup-turtles
- A1 c9 ~/ ~8 g1 ]" gset shape "person"$ C$ b8 I' |! A+ z' g
setxy random-xcor random-ycor& L. s1 K$ B0 {, a$ T
set trade-record-one []$ t. f# h: K6 _% |( E8 C ]& b
! y9 g5 V E# k( N
set trade-record-all n-values people [(list (? + 1) 0 0)]
( [& r4 S0 X6 E# q5 p! W s8 ~/ ~! }5 G3 W0 c8 `, {0 U
set trade-record-current []
, ~0 P+ Q" P2 N; f! r! Aset credibility-receive []; S9 `4 C2 y V
set local-reputation 0.5( b+ q, O1 N$ x% }: _
set neighbor-total 0
p% @$ {/ B" p& G6 K5 x9 m/ c$ T! d, tset trade-times-total 0! n; `5 N( h- w N- V# ?( u
set trade-money-total 0
% I( R& n# v, H) }, Q9 yset customer nobody
* G' n4 r* _8 K: H# nset credibility-all n-values people [creat-credibility]
' V! J, I! ]# l& l5 g% ~set credibility n-values people [-1]% J1 N) S2 Z. _" }- ?/ g+ q8 |
get-color
N) Y M' T9 Z) d w; q4 y; E1 {8 g7 M ?3 e+ T( c9 Q' j7 A6 e
end
% N5 a. s; K. I; j4 z/ H- w# z0 y3 F) I
to-report creat-credibility
4 C6 J5 W+ i1 T* ~report n-values people [0.5]
: x: ]1 W7 }; d' t, t: y4 Bend
8 {6 T5 K' L" ~8 w$ \
5 B1 q! V0 O7 v& w" Bto setup-plots
" m8 R: M3 F6 Q* ]& ]. a/ ]: H3 U
, J+ Z& N' `& y; }% Hset xmax 30
* N H8 T6 n1 w5 W+ }
+ ?+ _2 d; a+ a l/ x) }! \set ymax 1.0$ v& n' Q9 y# y5 h8 n
2 l9 N( X9 {) E7 ?' Cclear-all-plots, E/ `+ q8 v* r! V( k% ^. n
?" d; K/ @: m% g8 c, k
setup-plot1! n/ C$ g' a2 S3 B
( |0 C& x+ T* t/ M/ w o% K& qsetup-plot23 @8 y m4 W. w) d* `
: A5 t1 x. V/ r3 w* f8 k8 Bsetup-plot3
! E' ~( r( _0 t" N7 }end
$ P! P# y/ n' s/ s/ c
2 ~/ d; b( I5 A9 j" X, W;;run time procedures
- q) t' t5 |6 Y2 W" I+ B3 m& N: @1 x# b x9 D3 g7 ]% j
to go
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2 s5 f! t, J2 }* ~5 h. \ask turtles [do-business]- B6 Z& Z2 Y! d* D/ X& T, c
end+ O$ i- _3 ]4 ^6 g0 B% |
+ O) K9 k4 A7 k1 j
to do-business
% Y7 q* } t v s8 S$ O1 O1 v9 b, W& K
! n/ J+ f4 _2 H6 |* \, k4 Z8 V
rt random 3601 T. Y* s& C: l/ }* k/ {8 Z7 V
2 E0 j" k: Q: ^4 q% k2 d% `2 }fd 1
5 c* c0 p4 B4 S8 z' G
. D+ g$ r: B5 b! ?ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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1 M: S5 s x/ Z% _7 x- s;; set [customer] of customer myself* f, b, | v) w
0 ?% k8 M7 ]$ dset [trade-record-one] of self item (([who] of customer) - 1)7 W [/ T' p. }1 S3 Z, |$ Y6 \
[trade-record-all]of self
8 h& a, M2 q9 a/ V: e9 ~;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self% ~7 _ o! e, G6 K# S2 i* ?
- }4 U: L3 P8 b+ k
set [trade-record-one] of customer item (([who] of self) - 1): b: N* h& t. f0 m
[trade-record-all]of customer
' T% y$ t8 E7 g" Y0 Y' i' y' U
5 D; v) F$ a+ m5 h7 y- l7 r( F% oset [trade-record-one-len] of self length [trade-record-one] of self7 p5 q/ z( U, c) [1 l+ G
4 m4 U/ z& z6 k# V/ c( c, gset trade-record-current( list (timer) (random money-upper-limit))
( n/ M/ o4 X- j) M& p
2 X( j& Q" y& {+ r8 k. j1 |5 [$ bask self [do-trust]3 T7 s$ z+ N1 g
;;先求i对j的信任度+ Z5 {$ E* ^9 ~& I2 u3 N" @
5 g4 f% h* j! E U* W# s
if ([trust-ok] of self)
9 [' B$ W9 f7 h! h;;根据i对j的信任度来决定是否与j进行交易[
/ g$ \& m1 S. C/ J4 ^. V2 ^ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
" B0 A0 d" S$ }4 w2 p B
2 P4 g! s; A# ~; d4 f& e; L[" d, V5 S2 m: T; g" H
0 e! T5 f& M+ X# c1 R/ r0 W: N
do-trade
6 \1 o* n) Q% K5 m2 j" i4 e& ]# J2 i
3 V0 a ^% T- ^, F! rupdate-credibility-ijl; Y8 a7 s5 t, \9 J3 s
; P. C9 d$ H; ^3 X( Supdate-credibility-list
& Y. n" v' U" C* X' D: r, e, \
+ B/ M0 z$ {6 H7 @" S1 I; q# R7 @
update-global-reputation-list) ?3 A( o, k) A/ f% T
6 S5 Y5 A5 m/ D$ r% _
poll-class
: C2 P* f2 ]1 B& p# S
# z9 T" l& j4 C3 _ d: K2 mget-color
" I# H4 J/ b) i
. _ i! A& A' e% ~8 B]]
" K+ @+ q. z+ Y& d7 _# j- [% O# {5 P! A
;;如果所得的信任度满足条件,则进行交易! [& Q1 _' W, T* g- F; X' O; e
0 ^, f8 ^5 V p! T% q: i! f[
0 R7 i" M% ?8 `% V5 ]" T! c1 A
, T8 l1 B, D6 N: e* L$ P9 wrt random 360: O+ l# W* Q* ], B/ A. t2 ^. C6 t
" D/ U: q+ G, R
fd 1% x/ F4 m. ~! r: e2 M
; [# C' S) p, e% v6 O* J% f
]
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end5 ]: g U- @- J( X8 a" ~
+ e7 f2 b" j# E0 z- W" V& m vto do-trust % r+ T- p* d" [' y+ x
set trust-ok False9 c# D W' \. J% q! {+ P; T
& F: \" Y i+ E4 o1 m( }3 ?6 ^5 k* z! O4 y, F& Q) ]$ v
let max-trade-times 0" K8 k( X5 j% D: e0 K
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]7 P+ Z* h$ _: A8 E$ |0 c/ n& }
let max-trade-money 0
3 p9 L: r* W( v; D6 Vforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 s1 Q; `5 k( P2 I3 A
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))0 M8 Q/ n9 h1 g1 ~! G$ x; Q
$ z! g9 K1 _. [# Y" @4 a0 k& {
% I! r1 g% X' D6 iget-global-proportion
- J, F/ x3 e0 W) R0 k% b$ ~- vlet trust-value: V4 ?# A$ Q1 w2 P' w2 T h
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 O: V- u" `. N! s! k' x
if(trust-value > trade-trust-value)- K4 `( p! u) n3 O7 P" T
[set trust-ok true]- I/ t; _: w+ q- t' b0 q
end
1 g( _. j8 | h" M
9 I F1 k' f- I% [# r1 m x; Kto get-global-proportion
& N2 R( O" N8 H6 j7 d, xifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3): g0 |: W' W9 w
[set global-proportion 0]
6 Q/ }4 L5 t J[let i 0
4 j1 j* S4 O+ y; {9 v9 J5 \let sum-money 0
* v8 h* V6 T( X, e: n( ?% d& q( R* |while[ i < people]
$ I9 {+ K5 Y; O( d[* F: O& J$ d5 |% a2 L" u
if( length (item i
# {7 O/ \0 o% V[trade-record-all] of customer) > 3 )7 z# `1 z0 x; C M6 D
[; Z' v% o5 j% i9 F- u1 y+ v+ r
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
0 G! D% f% I# W( [+ g3 @8 x]/ E) v# S/ Y/ N y; V
]* f; X6 ~+ t( e
let j 0
! Y/ Q2 M4 q* a$ Tlet note 0: e+ H& `# J, c# `- \
while[ j < people]2 ^' r9 H7 V+ T, y( U/ V
[. j* ~/ X; J( x8 j A
if( length (item i7 J! \) }) e" [3 K$ h. p1 O+ c
[trade-record-all] of customer) > 3 )' c( C2 z2 s# p0 a
[
5 J" K# ^* M* `- b/ I8 U0 m6 fifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)) L- x5 L8 y; M+ s8 L7 t0 s
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
& P2 t5 k6 N7 I F$ ~" Y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
( B, o' @, h8 h6 @3 \) K]; g' @) n. m/ w% e1 G. Q' ]
]
$ Y6 u- | U3 o( H$ } Eset global-proportion note
( R. E% A% `: a, |& _* \]- k( {% g/ G" i0 W% z: U. d
end
1 M' ?0 ~: c" }1 }7 t+ x) I6 U9 t: u$ c5 ]3 {- l4 `
to do-trade
1 \5 g3 m- c" z( }' d/ F' m;;这个过程实际上是给双方作出评价的过程
& E. j7 H$ M' q0 aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
; O2 t: a4 Q8 x- E/ nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价+ Q. J+ A$ b: s( m3 p) B7 D8 ~) B7 E
set trade-record-current lput(timer) trade-record-current
+ j6 F* H7 m y; N# I* v" ~;;评价时间
' E# q) e X5 f9 f. h6 G" |ask myself [2 S: L+ |! e# o% G
update-local-reputation0 N' o. J1 W) o7 e; d
set trade-record-current lput([local-reputation] of myself) trade-record-current" C) x: A1 T! u6 v9 ^$ B$ }
]
2 X7 n5 X2 M7 ]! a8 K7 J+ H7 eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself0 H% e% \/ L4 b( g3 c% o; D% T
;;将此次交易的记录加入到trade-record-one中
6 {2 {$ n( V* v `7 k8 Bset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)9 \9 o7 W3 a' Q4 V9 h7 k( a J
let note (item 2 trade-record-current )# p# Y! a3 S- E
set trade-record-current- L$ D I9 Z/ u; L) `; Q
(replace-item 2 trade-record-current (item 3 trade-record-current))2 g, y( H+ s9 c& @! W$ a
set trade-record-current
# H9 y+ r, S$ R0 ^9 j1 \(replace-item 3 trade-record-current note)
- q! E; I ?! i* l+ |9 w9 G3 |6 u
2 D# D; s2 U4 o kask customer [7 f' R9 i3 r2 C" r
update-local-reputation
N5 b* V: H8 o, s9 wset trade-record-current
0 w/ b% y: |3 \2 D(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 3 W, E+ W4 Y& Q* f, P9 \# p
]
) P3 H* }! c7 k
# _) [0 L6 c# a( k, u; f4 B
4 U' B, |1 B* D. a, l+ ~# gset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer+ O( v2 F) [4 N( j( F1 E! {
8 I/ ?" o/ ^( c- W b% S4 c) wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
" z+ x& s( `9 j8 H. i7 N- Z;;将此次交易的记录加入到customer的trade-record-all中
3 S3 u* J$ [' K, ?9 _4 \end0 C/ B5 y: l, ]2 x4 O
! @ [1 I0 `% _to update-local-reputation
/ N. D- \7 @2 G3 L/ a% P! r) \set [trade-record-one-len] of myself length [trade-record-one] of myself: @+ O4 z; z* r1 f/ W
) B# v) P2 N: `1 `5 F; U! ~( w8 R p+ S H7 {
;;if [trade-record-one-len] of myself > 3
2 ^) D6 [( ~. m, K+ R( l0 Rupdate-neighbor-total" B1 ]+ g* {7 V) q, L
;;更新邻居节点的数目,在此进行
: D$ I% C) n* x) elet i 3! C$ F+ V$ r! `4 ^9 [
let sum-time 0* H* j7 C7 r, r2 U5 x& `( ?
while[i < [trade-record-one-len] of myself]
0 i5 N# w8 C8 M[0 p0 t( z* E8 N. t
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
4 E# w' o/ P# G- \4 y% B @4 `set i
8 s% A6 q& R/ F$ p' H( i + 1)
* [4 b' Z" d6 M% j; v6 l( {]' w7 C+ z7 e9 G5 A* K
let j 3
* S& K/ p) l) Elet sum-money 0) o8 b" H* {8 Z, `0 q5 j' ~
while[j < [trade-record-one-len] of myself]
9 r N4 V5 x( C' q& j& N# x[- @/ m5 t- g+ i
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); G8 \' G; N+ y" w- P" X
set j
& M8 l$ J& I8 I4 x. s- Q& e; {1 _( j + 1)9 w+ f9 Z, ^3 T; K& f4 A
] ~: Q5 a( i) j8 x& P3 i" Q6 K
let k 3' e4 k- j- h3 p6 b2 C& A; X
let power 0* m4 T6 i" G* a# c5 ?( y" D
let local 0
) o1 }* k* |4 c* F0 \/ Xwhile [k <[trade-record-one-len] of myself]
' k9 C& z5 ?9 ^$ _" R[: T# b2 r L% p0 `9 ]" W+ P* G
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)
; C1 q+ T- Z8 `2 r# E: Uset k (k + 1); }7 Z. y4 x0 T5 L" D% t1 ?" F( S5 I- T
]0 W% c# w& O% C7 f0 @1 K: H x
set [local-reputation] of myself (local)
: k" Z% b; h* |: |& pend
- s% D# {) y2 }/ P* a
/ O+ U/ T# ^: v6 Ito update-neighbor-total
+ h: T' J6 _: u# k- ]+ S- }5 D. {& F3 @, X
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 V' F* C+ n. E4 ]& Q* g) `9 I
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" S* q6 r. X0 z% v5 ]. {& Z. t
end
' P" D- s% S0 R/ N# }( g1 i5 w% M( [
, ?' m! O' Z1 x: Xto update-credibility-ijl " r- m/ O. M1 U3 W
' V. Y% j0 w% x, d" y
;;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。: n3 D4 \# h1 q! O4 ^% m+ k
let l 0
& a& |4 d* y: s5 v/ Kwhile[ l < people ]9 Z, o! \8 ~3 V2 ]6 v8 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
, }( W$ `) V# u6 j9 O7 v! b, Q[
. ^3 k2 l" ^+ Ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)- x- Z! p6 @7 q8 K+ W
if (trade-record-one-j-l-len > 3)" R* r& c: R0 V; O8 y6 |
[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$ N& f; ^# W8 G1 T7 R+ e% j
let i 3
( r- M! R: Y# Q9 j, D+ dlet sum-time 0$ O, M: [! p- u5 Q
while[i < trade-record-one-len]
2 }3 p, Y) Z$ [[ A1 G/ |- K3 e$ {0 k
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
4 U% X. a- v" [+ I. m6 Iset i% e, ~- x f2 f) _' F- N: c* q
( i + 1)4 D0 Z' {, `. z8 Y( m0 P, J
]
6 i- D: X8 ^! f' A0 Tlet credibility-i-j-l 0
8 l! x- L2 j. V. d;;i评价(j对jl的评价)! c' S% f W6 `8 A: y4 {" l, {5 S
let j 33 f9 r% Z7 h- b" T' A, u
let k 4/ F& \! o E2 |* b
while[j < trade-record-one-len]' y6 P. _8 \+ e" W; I% z' A) T
[
+ L( C2 j9 Y: |9 k5 }6 bwhile [((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
) t9 S' k& _2 E8 V8 Y$ z/ }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)
9 t$ z8 Q1 d% ]set j
4 Q; F9 i. f( K7 N* z1 m( j + 1)
/ T+ H1 ^1 Z$ H* {]: q5 d$ c, N, D6 a; e$ J4 d
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 ))
$ r, K/ K, `+ J2 |# T# t) r4 a) r# T/ W u" W H# W7 Y' W
# p" I; m7 C" W( J; A9 p9 E3 Flet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
6 u. j, u" h$ N4 b' G/ C;;及时更新i对l的评价质量的评价" R/ u1 o4 g8 Y# q, R: C, w$ l
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
% g) u. z0 c/ _+ C w7 V/ O9 Rset l (l + 1)1 d( R1 {1 D, \. v/ X1 ^
]' Z# w- I6 O& n# ~
end2 e7 E; Y' y* n7 m
+ `! W& A/ G) u' T1 u4 h
to update-credibility-list
Z" j5 m8 T3 F9 z) i/ slet i 0+ t. [8 T& e5 c0 j# _ t' t% k% ?
while[i < people]
" s8 U2 P- O9 o, M( F; U[
/ e# L- ~' j3 l6 q; W1 S" `% plet j 0
* S9 c9 y4 c1 B9 Flet note 09 ~* K! L% c! f" ?
let k 0
* E! `9 N$ @# q M+ N0 y7 w;;计作出过评价的邻居节点的数目! _7 r$ o/ ?/ L& ]/ }% w7 q
while[j < people]
, |3 Z+ r u; ~[8 D3 h% Z7 Q( _" o% a x# x6 g
if (item j( [credibility] of turtle (i + 1)) != -1)
Y& k& T' I" g4 d9 K( M;;判断是否给本turtle的评价质量做出过评价的节点
E& b1 s2 _- `: |3 k1 [7 C5 U: ?( {[set note (note + item j ([credibility]of turtle (i + 1)))8 p+ Q+ g o3 e* n3 K
;;*(exp (-(people - 2)))/(people - 2))]
- l. q8 [: B: F' [( v7 @set k (k + 1)
/ q) m) o7 {( v: z7 k9 }]
% C# X* R( j% q% Y. N0 H" vset j (j + 1)0 _- ^& C9 D' e8 B1 m) l
]
4 @, n4 [7 a3 b4 e8 z1 Lset note (note *(exp (- (1 / k)))/ k)! R! Y7 k/ C$ I" B# Y" P! f
set credibility-list (replace-item i credibility-list note)) d r% v3 @9 o R) r) |* `
set i (i + 1)
) t3 K4 D; n3 R/ r9 ^) j]
1 n z& P ~3 w& b$ W# y9 Wend
( x9 D V# x: G/ V: J' v. X7 ]2 Z, p2 A, m1 d) H6 z% \1 D5 B% r
to update-global-reputation-list, F% {9 U% E- M+ w* z4 I u
let j 02 j, O H( z1 [. E, @
while[j < people]8 v* B! ?; W* y6 F" }0 c: L( y
[
( ], f0 G5 I9 j! zlet new 0
2 ]- \! h8 k [: };;暂存新的一个全局声誉
: w. |4 G2 O7 B O" Plet i 0% }& F. @" C; w" p. E
let sum-money 0" Y2 y0 p$ y" s4 o
let credibility-money 0
+ \/ b: \2 A: o& x2 b3 x N9 o6 Qwhile [i < people]
1 i* B) y% a* ^% j( G( l2 K# Z[
9 D% O, l/ L) o% G- D2 M" X8 dset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 V$ J) ]6 I' e6 L
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)); \& \% ? r9 J; d
set i (i + 1)# F# }: Q9 b F* {7 _( v4 T
]0 C) t0 a, x7 r w
let k 0
9 T4 w4 I5 q6 t/ l2 B9 J" G" plet new1 0
3 y1 \ H) F6 E: v4 m( `& Awhile [k < people]- D4 g' W* ^, }$ j' a3 Z' M9 R
[
" X' [1 y* x( f# F5 Q) nset 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)
/ K( }7 X+ M4 }6 Q7 v5 mset k (k + 1)
% \6 G! G) e) V. g, i]1 Q( S! f# J' q' a4 W8 w1 ^0 ?
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 1 n6 b8 Y' Y) R
set global-reputation-list (replace-item j global-reputation-list new)- S2 f% a2 i8 H! r
set j (j + 1). X* r1 x: h5 M
]
( l4 S+ V: {0 N! L% Z uend) ]! `9 A3 [% m, ?0 l* ^
1 ?) J2 A8 l' S3 Q" O
# y7 {5 |; T' o3 N6 _9 Y9 s
3 j) h7 j' Q+ E# A6 x* H5 cto get-color( m! _0 i; f9 p4 s7 r, M& r% C
# m0 s* ]3 n' o1 d
set color blue8 ]3 t- P! ^8 Q* ~7 f
end0 g$ k8 p7 |' R! R0 ?
1 q f; R3 O, J6 P2 P
to poll-class" ^0 {, u/ D. U# h$ \/ N, M3 N
end2 y, z3 _- X4 J/ f3 R: N
# Y* n7 E K! J1 i
to setup-plot15 I; K1 L3 ]; S4 d& |
, e5 N2 L% u# T: @# C, |set-current-plot "Trends-of-Local-reputation"
5 w3 m# e% S; D+ Z, q
1 C( I1 a, L1 V; t' J6 Gset-plot-x-range 0 xmax
8 Z/ P* j; o6 k5 K8 `! X( T6 A: q
set-plot-y-range 0.0 ymax9 \+ y: v9 W: i
end
. d) A4 z5 S. j
$ f9 W: H3 }( R0 m. E6 ato setup-plot24 K3 F" C" ~3 g. d
8 @( ~2 d. Y! I4 p7 z* \set-current-plot "Trends-of-global-reputation"
+ }9 z4 Q/ p! P0 Z# L- [
; K( R2 g* o9 S# q, z5 \set-plot-x-range 0 xmax6 M0 e" D; u* A- X
% ^1 z" [" O E" p% g' zset-plot-y-range 0.0 ymax
& ^) W. y) S( x% |8 Y$ pend
. Y3 `* w% h' k1 L) ]
7 _9 c1 [2 Z/ z6 }8 cto setup-plot3
( }; U' ~- `# f( `2 u0 B$ N* \4 _7 E; |! M S8 n* o% X
set-current-plot "Trends-of-credibility") j, [$ W5 o& \ a2 r+ D
; X* x, t/ K0 H9 ?: d, Vset-plot-x-range 0 xmax: Q/ ~( ]+ o/ f0 W3 |
; Y% Y( j2 v" w' q0 a
set-plot-y-range 0.0 ymax: W9 [. P7 O( e3 Q1 ]7 j+ P
end+ d. D0 `8 c0 R, ]" c# F
. J" k5 p8 y0 g. j% R( \
to do-plots
3 w; h3 b( B$ @set-current-plot "Trends-of-Local-reputation"3 r0 N5 i+ p$ k# r9 y. A
set-current-plot-pen "Honest service"# B+ P( u/ T# v9 A6 c& W
end
5 o, u+ i! Q& Y* `% n2 s \) K
; W# q! [2 r. b6 ` V6 ^[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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