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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
! p7 t K5 H$ C; p7 ]globals[, E4 P+ D0 }5 j6 O) l- |. G2 n- E
xmax
, U7 p8 ] X* u* d9 ^ymax; _, M4 V/ |1 O4 L, I
global-reputation-list
3 j7 K. P4 @8 q5 F+ z
7 S: L4 h$ [# N( h1 K, b' ];;每一个turtle的全局声誉都存在此LIST中
! a$ ^$ l5 s' q" q- Fcredibility-list
1 Z9 h! V, H% B8 k* e* O8 M;;每一个turtle的评价可信度
" C9 A. P2 r, w8 p) `: @0 U1 @honest-service# G7 c& {3 N. \8 t7 F
unhonest-service! T/ U5 J3 g) v! k* |0 w- H
oscillation- T( c: i6 A) B5 S7 ~
rand-dynamic
- n3 Q! v7 u! E]
`; M/ X2 w/ i
' u& v5 _( z0 e1 `3 |; [turtles-own[, r. y; W3 r2 \5 C0 Z2 h% a
trade-record-all
( \% i5 @8 P, U( I3 f;;a list of lists,由trade-record-one组成
9 O( z0 Y6 L, F1 G, S$ ytrade-record-one% `( w9 X- O$ 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) G3 W4 \; ^! T1 _' `
3 Q& k! m0 a$ c2 r# X z
;;[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]]9 N* e2 l9 d1 z5 n0 L
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]
& e1 x$ Z: i, Zcredibility-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
{. Q* c0 P4 t2 h7 yneighbor-total
/ S0 H* o9 h# D;;记录该turtle的邻居节点的数目
@% L) b! D5 c( \8 b6 ltrade-time
1 Z0 i" ~% `( m$ _;;当前发生交易的turtle的交易时间
+ a; y/ w* K- I6 o7 x( K }appraise-give7 A! j/ N$ b, P) J
;;当前发生交易时给出的评价3 V: Z6 V0 |* G! I( Z
appraise-receive
/ M6 R7 c' n! d. \;;当前发生交易时收到的评价+ V% K# O& @6 f9 Q* [. ?
appraise-time
! R) a- Q/ _% U8 }3 F% G: q- _;;当前发生交易时的评价时间
/ T6 C% o: P9 h, J) Xlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
2 D$ C/ Q! W6 Q( j; i1 f5 [7 Utrade-times-total3 Y- M0 h$ F) l0 L6 x
;;与当前turtle的交易总次数
! G$ d! G4 D9 \ gtrade-money-total
! Y% {% r5 ~, V1 U4 M9 |% c2 R7 W;;与当前turtle的交易总金额
$ u6 _2 f. Q3 T$ A* ` R' @- mlocal-reputation; ~ e: C1 f% F, W' j/ B: R
global-reputation5 E/ }4 s2 b2 o* A# p
credibility6 u& g" z- P4 d* @4 g9 b
;;评价可信度,每次交易后都需要更新
6 p7 x3 |2 L: \& ^% G3 _% p9 ^credibility-all
# s W* Q" D; w/ N: c# G4 X1 @2 B;;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
3 d3 v2 M4 G4 b( n9 G0 }; N7 O. O% L4 P
;;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
8 W8 A/ Z9 q* t2 ] @7 H! J! ^7 X6 c2 Tcredibility-one. j9 k% Y2 B; l" y& H3 o; Y- [
;;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* m% i9 r8 }: [. }/ e0 r
global-proportion7 c |' R5 T3 Q; W9 W, I5 f/ w P
customer
" M1 V1 c w' \. y! Y- Xcustomer-no" ~( [# y1 w6 c1 h# b2 T& s0 C
trust-ok
( X8 _; j2 V% ~6 {0 X- G0 _6 V# {trade-record-one-len;;trade-record-one的长度1 K3 t$ t2 x0 r
]6 N2 W$ y0 J- D
% J/ }4 R' S/ u* o1 v;;setup procedure
" ]# W U! c* i( ~, ]2 F4 [7 f
9 O3 n" g' F& [6 K% @, ~to setup1 z. B! ~9 E; C- L5 z& j2 Q
0 x! C" @, Q: H3 u
ca3 r. C5 E& o1 `( C. Z5 z
7 r0 p' c* k" V2 finitialize-settings
5 A" z: M' c4 W* {* Y& c% l1 ^9 Q9 T) l- S, X
crt people [setup-turtles]& S9 J" o$ [1 k0 Q2 e4 S: W* b# Y5 a
+ X7 ]/ R/ p& l* f3 d0 |3 l" z
reset-timer
" G& c8 \9 P/ s* X7 W; C; ^
3 a9 q! n: U4 A0 [, u6 S% l4 A1 Xpoll-class
9 P0 M# Z, ^ B/ I0 S5 {# |1 W
1 i- J* j0 {7 a9 f3 q3 g; wsetup-plots$ v3 c6 t- V* F# V8 v# t* a( q
) H: }" }1 ]% }" v' L. ~. r1 V
do-plots
$ a" U3 m8 a$ S" t6 [. ~end
( m0 j0 h }4 B* u# N! K" E- s* w4 t4 {1 G' |& x' A
to initialize-settings4 z( }: a* X. f' ~
" f- V$ H( \' ~# X, p" aset global-reputation-list []
) x1 ]. w( u( t9 v3 y
~1 D7 D4 a& k/ ~set credibility-list n-values people [0.5]9 V: [% m- h( H
2 O, `& a. T: m! U) Zset honest-service 0$ Z A! m* B9 D1 u
6 z) b2 I8 ]" _set unhonest-service 0
$ s! B: C/ o9 l, M8 \* s, s
. ~2 U1 } ]$ v. mset oscillation 0
% L3 F: O$ z& T8 N" s# `% C$ ^' u
set rand-dynamic 0/ Z0 Y3 t/ A# u
end
- ?' x4 K0 W x- g9 ~$ C0 d
) {. x" P- z7 e; q6 g6 G; fto setup-turtles 0 W8 A: S6 p) A, e0 O2 \* g- X
set shape "person"9 d2 w7 V+ n& C! H- x6 ?
setxy random-xcor random-ycor
8 Y7 o/ b2 n3 ~2 x6 V% |# Y uset trade-record-one []3 P9 f$ }, a, ?8 y/ S
4 Q$ C! h% |) _9 |+ `0 pset trade-record-all n-values people [(list (? + 1) 0 0)]
1 G; l, P' Q. E
$ i. {8 a" o! m# g4 ]( ~set trade-record-current []2 b, f4 q7 ^7 k. s4 }( |' n* Y
set credibility-receive []
2 Y8 Y, a0 j( ]+ }8 d$ W. }, f% s2 Nset local-reputation 0.5
1 p; l( a2 n7 fset neighbor-total 0: p7 L' {( k+ @
set trade-times-total 0- N' b! Z. i0 h: f% K, T% I* W) W
set trade-money-total 01 I3 G4 W: U, f: ]! ^2 j* h! }8 J
set customer nobody
3 a: T3 _6 U' a# T3 [set credibility-all n-values people [creat-credibility]
+ ?7 h, P; r2 _' M& C$ r% g- }7 @1 W6 oset credibility n-values people [-1]7 n6 F4 Y0 Y/ y8 j, x
get-color8 s! k: p+ B- T
1 a9 n7 F7 P2 G- l% w
end
1 U: @9 x+ `0 H5 L
0 s; A7 H6 O! S: V6 L6 x0 O/ N* hto-report creat-credibility
2 `' @. E/ k: W7 o9 J3 E+ d, \report n-values people [0.5]
" f! t$ \7 o* e. C+ bend: a7 H3 A) b# S/ ?* S
$ T$ h9 I) Q; S. R" B, Eto setup-plots
+ i% h! W& D! d3 C& z! P- h( h2 ?& r. S7 X* k6 J
set xmax 30( v7 t4 `( x% v
~1 [" f, l7 @: n% gset ymax 1.0
8 f N5 m9 e" D- _+ F. R
4 v8 q1 W) e; z# {- |clear-all-plots7 q$ K* U# K, S9 l
- i; ^; G/ w3 f8 \3 `setup-plot17 |. b c2 ?: ?. J' R: D2 ?, C8 `: d
" U+ k4 _- K0 s/ h$ \; n6 b8 A' Usetup-plot28 J4 k, H5 a3 U7 D
/ z; n, z, t& E' Msetup-plot39 S: S" i9 Y6 V+ w4 L
end* ~9 h+ d; }0 b; A* J) Q, Z/ i
$ H) ]# M( I3 c: G; O& `6 T;;run time procedures8 h+ H& W( i# }) I
2 i* s3 A: y H$ ^3 b5 I X* `
to go
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; o1 z; n1 b& f. H$ O' y: oask turtles [do-business]
0 g- `( M; r3 J6 {9 Gend
. \ }# |* a: J0 ?4 K4 d8 N
$ L8 r2 t0 ?" o' hto do-business
# R8 _& i/ |/ d6 [- Z0 e5 L9 I- ?, n. u( b2 O1 X8 V/ k
0 J% N+ r: O& y8 Q/ G
rt random 360
) C J! d5 u2 h( y- x. H/ q9 A3 R. }
fd 17 @, T) D) N/ Q5 ]
+ {5 k3 |- G6 E3 S( v! M$ z/ Zifelse(other turtles-here != nobody)[. `( u( E' r& s R% G
3 O4 I$ N( A4 ]. O
set customer one-of other turtles-here C, w- r4 B$ k; y, d4 U1 N
* r4 `; Y$ m4 s% l* q
;; set [customer] of customer myself
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6 k4 G1 e# b$ \: W* j1 F2 J8 q8 aset [trade-record-one] of self item (([who] of customer) - 1)
. R5 s6 ~" O; L: ][trade-record-all]of self
5 _" Y9 C/ y6 x7 s$ };;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self8 P. w- N; o7 u/ g( Q3 ?! [
% f; b9 ~& m. X' `' c& G
set [trade-record-one] of customer item (([who] of self) - 1)# q8 |. ]( n; O6 q0 ]6 f
[trade-record-all]of customer; V3 r! _. c n" K
; F- p9 k: }/ {7 A3 Z: v% @
set [trade-record-one-len] of self length [trade-record-one] of self9 u' J5 h1 `1 P: b
" A4 Q. l9 m- P
set trade-record-current( list (timer) (random money-upper-limit))
6 J4 h( X$ o2 c6 ~5 w B& m! ^& X3 p |7 b$ b1 r' \. s6 r
ask self [do-trust]
0 e& F. a9 Q* w, H;;先求i对j的信任度" t0 j) M+ B. o' m+ V$ y
+ y& c& x: y4 d2 ?' @# bif ([trust-ok] of self)9 k9 [6 c4 I4 u; w
;;根据i对j的信任度来决定是否与j进行交易[% ^1 k0 p `- A1 X5 Y; D
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 u: u9 w9 F! ~) T U8 D& r
2 N, D( j6 y: k+ W) y: ?7 o[0 e5 W: Y! ]# S |1 }8 o
1 `# Q, L2 s- Q' _ G
do-trade8 `0 B. L# L1 q, G
1 U+ \8 u/ i7 M: u# E. }update-credibility-ijl& f p1 F5 |4 }* `' ~+ s
N- J+ x( N9 g1 j$ C" f8 Cupdate-credibility-list
4 j4 _6 L) w0 `' Q5 l9 V( Q, G: @- Q( H
' O; u* k. X0 {4 N: s
update-global-reputation-list; T+ b1 I' ~1 ~! ^
' z- c" Q( d4 J' o
poll-class: B- n W0 O1 _1 U( S% D
2 p1 O! N3 K8 f9 b1 i
get-color# e! K; A% b f5 X! \4 F
! M! O) O j/ P' _% \4 m# ]/ q0 J
]]$ K0 G9 f4 O/ L! F
. }0 \6 \8 O% m4 f5 q9 L; N9 H
;;如果所得的信任度满足条件,则进行交易
8 s4 z! A1 r8 V7 ^: M4 f% v- F/ Q$ @# C, i* V( ^' S X( c
[# n: B% I# D" g* |" x
& Z3 C6 S- }$ |5 B6 m! J$ lrt random 360: H' M) C s7 i" `) ]* B2 \
! m5 v- I4 i% L& A
fd 13 c. X2 _* G# L- Y" H% L' ]
# n- ]4 t1 b* K% F9 q! m) |
]
* G9 `, j, B- k7 G7 e8 H2 X+ T' ~7 u5 K
end+ q: h" U1 I! @. A( H5 w3 p
- e3 [6 i& h" s h0 Qto do-trust $ y/ M' f- ^2 I8 _
set trust-ok False
+ j- C5 L; E9 y8 T) m8 C
- \8 x @6 T3 [ k: g6 r9 X
, c3 |: B$ o$ X5 Rlet max-trade-times 0# V# y5 d& U6 `
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
' M: j: C$ P4 K/ z; zlet max-trade-money 0
' t I3 J9 L6 m; y. C7 {foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
+ t4 Z A, _+ _! Olet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))) r8 A6 W5 A: G& _3 g& K; O
* D9 d1 E! _7 T. m5 a4 u! h+ V- ^
3 v! L. `( y6 C0 v8 B0 i8 Iget-global-proportion
8 o, @5 K7 J) k8 ^let trust-value
' Y8 U% ~" F" Z2 O+ l$ slocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)4 z. C$ N5 @# }+ e: p% Y
if(trust-value > trade-trust-value)8 B" T; q) o: {* n
[set trust-ok true]9 Z5 T2 k" |& ]* x
end! N# q3 Z& s8 W) d* v4 f
/ m6 I5 j$ ~: Z4 }" P: G0 Z, |7 pto get-global-proportion
A c/ J3 D0 s Y3 e0 d7 `ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* P) H* c8 u _) O" f0 n
[set global-proportion 0]1 I: z2 {) h; ^2 X
[let i 0
. w$ \( a( ?# elet sum-money 0& e3 G/ X' x4 Y9 \* T
while[ i < people]
' x1 l3 l& e \8 i9 j7 t- V( q[
( M* ?2 Y& n( Mif( length (item i
3 p; F' X' J2 N' E$ n/ P2 R+ h- g; ?[trade-record-all] of customer) > 3 )9 ~( a2 ]. C) T7 N' @
[
5 Q Q0 f& O6 l: S4 X( `set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
2 f" A9 H+ b3 u" t]
: V2 j5 F5 ~1 T _1 [* g" ?]
0 | s1 z0 D+ n( \$ zlet j 0
: ~- a; G, b+ O: t' M6 Rlet note 0
. R4 K) t+ _! |* t3 X) ~while[ j < people]8 T% Q$ Y7 m6 y+ Y8 S. r7 G4 v" @
[! h5 h7 r9 k4 _9 e2 H# d, Y% J2 S
if( length (item i
5 M4 ^+ E$ u. z+ Q/ A0 b[trade-record-all] of customer) > 3 )
( p& G! Y7 }" a5 \7 V7 H; Y[4 t5 z' K: {" n9 B
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* T- n/ e- |$ t[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
: {/ }! p7 y) N; w" n[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]/ [6 n8 A% g# X' h2 q! I
]& P" D& e8 u1 r1 X: l$ ?1 Y- Z
]( F: v6 a/ r* X
set global-proportion note
: J$ z A, n9 J! z& `# j% n; [6 ]]
! @. N7 m4 e/ A# T' Xend
; J% i; E S0 k4 q6 S/ h9 S
$ }5 ?* ~) S& |4 s0 g: Cto do-trade
, E l4 l( l8 ^;;这个过程实际上是给双方作出评价的过程
" R) A" ^" v5 dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
6 A- j5 n/ b0 m, [" B# M+ mset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价& R; L3 ~- V+ }2 M( G
set trade-record-current lput(timer) trade-record-current
+ \4 D4 K# b2 Y9 E! ]. Y;;评价时间- J3 W% P7 B1 w1 m
ask myself [1 ~# |, c. J( K! P
update-local-reputation5 r% l. a, W3 ?
set trade-record-current lput([local-reputation] of myself) trade-record-current5 j5 W2 _( z- u
]+ p9 } Q8 |9 M; I/ c+ I
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself1 d5 P; g7 b9 W5 x3 t/ }' ?
;;将此次交易的记录加入到trade-record-one中
( n' E) X+ s+ y$ ?9 zset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)2 S u4 r5 w3 M# \$ K% g1 @
let note (item 2 trade-record-current )
4 g# r, N* s3 f1 v% R( q; bset trade-record-current9 `; k! [* ^1 S( i9 G
(replace-item 2 trade-record-current (item 3 trade-record-current))$ P" `' \9 {" V" S( J s
set trade-record-current, V, B: R, D8 c" C
(replace-item 3 trade-record-current note)+ c. G# {8 ], O) o6 ]
$ l! {/ n9 l6 u; A5 d7 t/ X ]( x$ P; L6 p, U$ M& u
ask customer [
: |- i+ L4 m" Tupdate-local-reputation, b/ l& S D9 C4 L' }6 N6 j
set trade-record-current1 B7 U* f2 `4 {0 {) b
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 3 n0 _" u( j( ?& `6 q {- ^0 X
]
d7 {8 t9 D1 S0 N# a4 T( n3 Y% U" _2 ?8 g" `7 t- c
4 t, l; P) w1 U6 p. Oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
# p4 ^ T" Y; D; H5 X# H7 n8 q( X7 d. b* C3 X) a$ K7 J; N5 \1 D
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
- C$ k! y @2 O2 ~;;将此次交易的记录加入到customer的trade-record-all中
6 v% P; f! Y3 N/ Yend# N" `6 b8 W! d$ E, z9 k
2 r g+ j, E2 q5 h# g* l2 Eto update-local-reputation
. a) @8 w, n- tset [trade-record-one-len] of myself length [trade-record-one] of myself3 Y. _9 Z+ d# j; Y
3 n8 C( {1 x- w+ N$ R+ J ?. L
! b/ t( a" i4 Z& e;;if [trade-record-one-len] of myself > 3
8 ^; g% h* x1 O9 }& ?! P' G& T0 Kupdate-neighbor-total
! ]$ i1 M' ]. };;更新邻居节点的数目,在此进行2 j$ m6 n: b- y) t$ V
let i 39 f! W( @* M5 W
let sum-time 0( a, S5 k6 Z% b6 b* v8 e0 i7 w
while[i < [trade-record-one-len] of myself]
5 F) D7 z. Z# }8 O' g: l[
- ^) J9 J; r* H1 r2 Q4 K4 Z' f2 mset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ); z, q6 i2 l" ]8 ?0 f8 @( m5 a5 g
set i
- _0 J) u8 W3 w6 z9 X, C( i + 1)
( _3 j# \1 L8 p6 ]5 G8 ]! e]6 A1 G D( O Y
let j 3" v% x2 J5 G% |5 Y; Y5 F6 E; ?& f" z1 |5 y
let sum-money 0
$ z3 x X0 y+ Kwhile[j < [trade-record-one-len] of myself]' ^1 T# o- o7 {" P
[
: r$ y+ R" Z/ l! D/ e, G0 Kset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)7 W5 G% v& T5 q) I
set j
- j! l @- M1 i, r0 U6 T( j + 1)
g- I* @4 _# u) ]/ f3 m]
4 p( Q- A, B5 D2 Y& olet k 3) V9 y# r1 r' U1 H
let power 0
. W7 h: A7 W5 t8 o k `let local 0
0 g! _3 M: r% H) [5 F# K- Jwhile [k <[trade-record-one-len] of myself]
: @. q _9 |# r- z4 V6 r: j[
) D Z3 S- r8 D6 ?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) ' ?$ B6 `' ^# }, M
set k (k + 1)* G4 j; K: j7 w9 y) h1 J
]
. Z& Y# G! a3 p. g7 u/ ^set [local-reputation] of myself (local), I! g# U4 c3 m
end7 x7 K: P+ U- f0 f! o/ V& W1 N& Y
. q1 ~/ r3 e" a3 z e
to update-neighbor-total1 ]3 l3 H1 k" g1 c: g
2 `7 ~! R# G1 t& }. M: Aif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
: \& D: k$ q. X3 ]/ k9 a4 T# r+ |
0 R8 K* B( m4 h: h! i2 @( }# N
5 J) k9 S' l$ Nend
7 E, J0 N4 K- ^: T! d' d9 V5 e
+ Q- h$ y M% j: h* Q! Fto update-credibility-ijl
g- x3 k& Y; H _, ?9 w1 _0 Z& t3 j
& J- R, H5 h9 s) };;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。
& }6 d( y1 p, P" Y+ }" P3 l1 Blet l 0
* o! l) Z7 t+ G, {while[ l < people ]
. O! K5 C$ D# [;;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 ]7 c! Y5 K$ I" v( P0 E4 v& ^
[8 @' e; U1 ]' o
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
. T- J5 p0 Z: X1 c5 ]if (trade-record-one-j-l-len > 3)% [: M5 Z7 p& E0 r
[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
: i$ F' z+ F3 _let i 3. M3 o9 u) G: H# x
let sum-time 0- l" Q: m3 x" n' x
while[i < trade-record-one-len]
8 T- F% S* U6 v[
) o) T' X% M- b8 j# w! Y- Pset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): a, b4 s H+ \! ]1 f: r
set i
- g+ M1 o3 h* H1 i( i + 1)
& e: A$ Y% p7 j% L/ K+ y! t]% d0 y8 h* S# v+ w( Y. k9 d( x
let credibility-i-j-l 0. M+ u9 M& [+ X- L" S
;;i评价(j对jl的评价)3 o4 x# b0 K/ }1 q; M' `0 o
let j 3
2 m- V5 g4 y; Klet k 4+ N X8 [' S( ^2 |0 _0 v
while[j < trade-record-one-len]3 a! W" Y6 i& c2 P; P7 p
[4 t5 ?3 ?) \1 }- ]" E3 Q0 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; E+ f( @2 D b8 m
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 y: I8 }3 _9 ~3 m) S2 P1 Uset j
+ C5 d- z$ f( l' n( j + 1). i( K. b/ |' @ x
]; s i6 E; Y/ P7 m$ y. E7 z
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 ))* a+ E1 w& x) I
0 |" c" r% ?( A7 {# f3 z
! c% r8 y; l; I; Vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
Q. B/ C3 U& L; Z; U' Q4 N0 l! @;;及时更新i对l的评价质量的评价
3 }' i1 C( G0 \! I4 w/ V+ Rset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
" A/ \! j. M& C% yset l (l + 1)
6 z( M4 R9 M3 J5 P3 G]
6 T+ @- G' a/ w0 L0 G* y5 Oend3 _7 ]- I, H% r- G* r0 h. B
/ v3 k( |6 M9 {. Z$ V: e/ Dto update-credibility-list
* ~5 f4 z9 c6 p) r$ D3 N% N' clet i 0
3 c% Z i; _: Xwhile[i < people]6 u ]$ P- X2 u( @! d% V
[
: S% _( I0 f j' l: hlet j 0
5 l: N$ N h5 y, U5 Y: R/ ^let note 0
' s# E! s0 S: |6 [' e# Jlet k 0
3 _7 E0 A3 H" }1 i;;计作出过评价的邻居节点的数目( h( `, U& _0 |" w+ w
while[j < people]; X' ^5 Q/ t! Y% w2 }
[
- w+ t0 f6 f" K0 Q% B2 F; Nif (item j( [credibility] of turtle (i + 1)) != -1)
' V; t& _ p, J% V6 K0 ]/ r" ?;;判断是否给本turtle的评价质量做出过评价的节点
$ r N0 H7 f- c: S( J7 [[set note (note + item j ([credibility]of turtle (i + 1)))
9 y# [. n2 b6 p' e, S% K;;*(exp (-(people - 2)))/(people - 2))]
, m8 Y! ^* f2 a8 U. @set k (k + 1)
_$ h, c+ S+ w0 G) l. U]
) p4 C1 ?' z0 f6 J5 Rset j (j + 1)! r9 A# j1 B: z
]
- H% e! X7 I: {8 Gset note (note *(exp (- (1 / k)))/ k)8 R ?4 V8 o/ B: _7 N" l0 k( q! q0 T8 I
set credibility-list (replace-item i credibility-list note); O! w5 @2 W+ H* c! u4 t- I z
set i (i + 1)4 t9 m( v" E- l( k
]. {8 C7 q$ f+ y" F( }
end* Z; x- j+ ~4 U+ F
+ T; @. N5 Q. U4 y) E# _# Q
to update-global-reputation-list# |3 A0 F: C$ H Q
let j 0
% w% H9 R* ~( g" n0 B$ _9 e, h8 dwhile[j < people]
7 C( M5 c2 v Y ^+ E[
' ], y, b" p) P1 E% v% Tlet new 0; i1 x; N% P% k, a# _7 B/ t4 h
;;暂存新的一个全局声誉
: k* ]: V3 c0 l# e$ Nlet i 05 T; s1 x; P" E
let sum-money 0# p7 N5 Y4 c7 y1 Z$ M
let credibility-money 0
H7 k. l" v9 A( d* }; w' a% Iwhile [i < people]0 [. J3 Y1 e% S4 j) D' B d9 R
[
1 T8 l) V {; L, b, g Fset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))$ a' y% V- e& W/ e2 V
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
( S/ B) y- C( m4 Y7 Eset i (i + 1)3 h& D/ O6 G1 s9 u' _
]; b& X0 N4 `. M& V; U, y
let k 0
# M2 K4 z# m$ clet new1 0$ T% C/ w- n% Y( O9 `
while [k < people]8 h. [% F* h4 o4 X1 l( {) T
[, W3 q' v3 i! C' p0 T& L
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)
4 q, M$ k/ W8 I/ c- n/ V9 }9 i# Nset k (k + 1)
6 j4 `9 D! p7 h1 p/ G]# d' V. Q& I+ U! L1 @0 \, c
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) T2 u4 A& i7 U, V) ?2 o
set global-reputation-list (replace-item j global-reputation-list new)5 ~8 C+ V: D. @. f/ ^0 h1 _, `9 j2 P
set j (j + 1): c! m3 p; d. B1 Z, y1 \" q# K
]& E/ S& d: G! `5 n8 Q$ Q; g3 c
end
5 P {1 D) Z( Q6 @5 n% t4 D# W
( N% Z5 d" d8 a9 U3 x F* a1 S# A4 p/ W8 y$ c$ }* V
& f; F- v6 `0 |) Z' Yto get-color
3 x, g% |9 L+ @4 |/ A( H( g1 r8 ?$ q, w8 ^3 p' I1 a
set color blue/ m3 Z4 P6 U* f; e! p: q
end
) C1 p; J* R( n; V t
8 b/ m, E+ Q* mto poll-class
8 B- f$ J: H; r6 r7 Vend
* }, G( ~. I5 U& ]% ^( @- _2 E2 | |; O& M0 z" f+ p0 a7 \1 Q
to setup-plot1
9 H% \7 h5 {$ v4 P5 n/ s: d
- f& p# r, F9 f# f: Yset-current-plot "Trends-of-Local-reputation"
2 E- z" b1 g& c8 s$ V
& \1 O& X1 Y0 ^set-plot-x-range 0 xmax
) d: X, j5 ^% @/ i) z- N1 r+ ?! C0 z- }# A/ j0 I3 W
set-plot-y-range 0.0 ymax
8 B$ q& ?7 e& d; gend. ~4 t8 n5 J* V, T2 x2 g ?# r- z! R
0 K2 S/ G3 P- E; z9 Kto setup-plot2- I1 Q& d% ?3 t% N. v9 k4 ?* {
" [" N ?, v l$ ~set-current-plot "Trends-of-global-reputation"8 Y2 M' ^3 f4 d2 V( B+ `
7 y8 H) m! {9 q1 R$ l8 B9 {8 Tset-plot-x-range 0 xmax+ _, V' X' k/ ?7 f, c
4 X: Y. _. U6 @+ B
set-plot-y-range 0.0 ymax
2 m4 u7 U+ K$ Q! Z r8 Cend
( L7 l- k$ P( {" E7 F L6 V; q8 ^3 i3 A7 Y6 [0 n" M
to setup-plot3
/ O2 K9 M7 u+ H+ {/ `
" D; V: o& s- w, K0 C2 U. N; zset-current-plot "Trends-of-credibility"
% i# S$ O: T2 I7 `! ?# B
8 Y5 v0 l1 B' F) E X; iset-plot-x-range 0 xmax
+ z. Y( W/ E, |& M D4 r# e: f! u4 F" n9 F
set-plot-y-range 0.0 ymax
4 H' |. G3 z' v/ d# `end
' j: R9 v/ i3 e& A: r" A) j$ w
5 l% i2 A% e9 {" f, M7 q: Oto do-plots
2 @' S) z3 @' g2 w0 pset-current-plot "Trends-of-Local-reputation"4 X0 V& l+ `# ` U8 G
set-current-plot-pen "Honest service"3 B3 N) ^, z* K9 F) h# z. j3 D. L
end. w- R7 t, y) N' n( S" y$ Z
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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