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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
% V% q4 [: m" c0 Y6 ?% H8 C- B9 ]globals[' j% r2 i6 S$ i- u/ P& A
xmax) }, w8 a2 @& e' _8 g' p
ymax0 I( w" v; Q% [
global-reputation-list$ C0 [- m# I% s# r: M L5 ?
& S2 l' W. o* a% \7 U# [& {;;每一个turtle的全局声誉都存在此LIST中
: V. b. y6 z3 S, a& L5 m; e) wcredibility-list! V5 n+ O! |6 h* z! E1 K0 u
;;每一个turtle的评价可信度: N3 U' {0 I3 @$ c7 s- ?1 t+ q
honest-service
) o6 ^" F0 Q/ {; E2 J/ d; `0 f. B" vunhonest-service
7 p: R4 K5 f6 Y9 moscillation
: ^0 E( n d% ^" m* a4 Lrand-dynamic6 ~! V8 K6 P$ T f' G+ R5 h
]3 d9 i, ] }/ X% r
7 ~8 n0 b: M s* _turtles-own[: d* g! L- Q1 y5 Y7 }7 W1 ~
trade-record-all, U2 p S" x! o* s2 y* [
;;a list of lists,由trade-record-one组成4 I2 R) v; E- m- a
trade-record-one
) u4 ?7 O+ @: d. v* ~;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
2 [& |& V S* v6 E' B& q' W2 K r1 M6 q# {9 D: R& 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]]
8 j, `. ?" }& A+ L1 ]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]
3 h" z6 S8 I) j7 T% 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list1 W! L' G6 C3 ]+ t$ K. I. l
neighbor-total
; ~+ E7 e/ o+ m6 M- ]; _% w3 w;;记录该turtle的邻居节点的数目" `8 L$ o; e5 m" ^! O
trade-time* k5 O; N' T+ D2 h
;;当前发生交易的turtle的交易时间0 O/ \, N5 F" ?9 m+ A
appraise-give# j# H: n4 P8 L# u0 o+ \, V
;;当前发生交易时给出的评价+ k; U- ~: D( h8 c- C, m- Q: ]. Y
appraise-receive2 |8 G6 u0 t, E# P3 Q- P9 o M# v
;;当前发生交易时收到的评价. j' k$ L9 R1 ~5 W0 F* m
appraise-time
3 Y+ Y, Y: b- k4 i" T# }, K# |3 Q" Y7 x;;当前发生交易时的评价时间
P! m/ O9 O5 N# O, _' Wlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
7 ^( I5 v3 ~& k' o7 M J% jtrade-times-total
/ F9 R8 j3 Q. k;;与当前turtle的交易总次数
6 |# ^ P; C8 F$ E6 Rtrade-money-total+ }3 O# W3 s# x: D: }- Y
;;与当前turtle的交易总金额* ^) x& ?! c9 N/ I
local-reputation( z1 a* i0 n$ O
global-reputation
" }! l, h$ p4 k& X; B9 }+ r- \4 icredibility
8 {+ i$ A5 R" g! F Q;;评价可信度,每次交易后都需要更新
% P4 E n7 J+ m/ bcredibility-all0 J2 P. t2 ` S" f8 ?* l, c- D
;;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
6 K8 T0 m/ C8 o1 J# r5 C3 f" O [" }! N! s/ ^5 u
;;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 _. v8 U5 h4 x. c) ~, N* d D
credibility-one
3 N$ y7 h$ x. q0 ]. Z: Z& s9 u1 W;;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5 y" y0 J4 T/ Q3 p2 a
global-proportion
/ v# @$ c! Q4 C+ acustomer
) x, a8 z0 | e) { L2 jcustomer-no0 s$ B+ q `- F9 [
trust-ok
/ p B, |9 x( ?1 _/ Ctrade-record-one-len;;trade-record-one的长度7 l9 I# {1 c3 ~. J0 Y7 p( I
]
( z$ Y, F; u' n7 {% E9 K0 `, L' Q+ C6 S+ E
;;setup procedure
: @' w0 @ v4 E7 j% t0 u
) a. A( J0 o, }- J4 w. Rto setup
4 `$ |! ?1 I Q. H" R4 B
" I1 @. Y7 |- g- k( Q- b3 }$ gca) [6 O; p8 M% r+ p) k
) G A: J e4 L8 ?( h8 { Yinitialize-settings( i# q- L7 C1 z; Y9 T' f! @% u: b* M$ H
* \3 k& e/ l7 e! B1 u" k
crt people [setup-turtles]4 b& O" R9 u5 Y$ k8 E g9 A+ X
3 { g7 B f& i! k freset-timer+ ~- M Q& J) G* }
8 I) ^2 N6 y/ \# t: U
poll-class! P) _* v/ H6 ~. U) g
& m" k/ v! O/ s8 E
setup-plots# e- o5 j& }! l6 X# H
, m# f8 K( `/ H$ a4 odo-plots$ ]! Z, h7 ?( Q( B8 X7 B# u
end, v( y0 v% ?" P% Q7 M( @
3 c$ Z+ Z3 s; M
to initialize-settings. s. M) U/ N$ b- b# J, b
$ s% I" r2 c5 r7 g7 ~set global-reputation-list []
( |: m; w/ L. h" P
1 e6 j0 ^# E0 w( g8 U3 m' z% u0 ~set credibility-list n-values people [0.5]& `8 n8 w1 ^; g6 D; j, a
r5 c) I% @1 q. l" T. X6 e
set honest-service 0$ {( x1 B! |9 b; n: P3 _3 ]& }
% h$ \! y( R% K) qset unhonest-service 0
1 U' P" D) H! `1 b: |. f' I, a8 u* x T, C; R7 n' k0 G
set oscillation 0) k9 O* Z+ a$ ^
; H8 V) \3 R8 D8 vset rand-dynamic 0
" E, h& h( e2 O- g5 p( lend
0 P4 Y0 e/ z/ Z1 K. K& e1 |8 W+ W
* c0 j, Z/ P6 R3 \) F; Uto setup-turtles . g2 q0 V# j, U7 j s
set shape "person"
6 q# X o8 L+ l0 m0 vsetxy random-xcor random-ycor: W2 @1 D1 l- p) H$ ? v
set trade-record-one []8 d& ^$ |; q# v! U' {2 n1 n G" r
5 m e9 R! U5 e# i; kset trade-record-all n-values people [(list (? + 1) 0 0)]
8 H" D% |6 Y4 w
( a+ M6 W; [% N* R+ ~* W a* Gset trade-record-current []
) H( E/ k2 l2 s7 oset credibility-receive []
% A3 U( R N4 Gset local-reputation 0.5
' D A9 C+ w& R }/ c2 y# s( i) Wset neighbor-total 0* ]1 ]. l% N8 v2 n1 E4 }0 d
set trade-times-total 0. t; K* `* S- ~" S$ E
set trade-money-total 0
1 X: Z( u+ y$ u3 W2 @, E& @set customer nobody
: X4 Y E: @; {set credibility-all n-values people [creat-credibility]
; S/ e# b+ v$ T$ M% \* Vset credibility n-values people [-1]' g7 C1 J/ t4 O- R: T
get-color
6 [$ \' ]. G' W3 G+ \- T% K' g2 H. @( S" C( a7 @
end5 k! n* I$ o# X6 [. Y: e
' G; `# O; }$ g; a& S2 i+ L# G
to-report creat-credibility# w0 D$ S( j% t6 N& @+ X! N; w& B5 j
report n-values people [0.5]
! ]+ }8 K. }1 j% D& P# W8 oend% o8 @% r) ?$ w/ _
7 F6 m+ b4 ?8 {8 P8 p# Z) `2 k
to setup-plots/ T# }) I, c9 h) Y# }1 c0 R
) x, B7 I; M* C0 c8 `4 R! z8 Sset xmax 30# Y4 i' f- W8 n i/ A( x: G* W
) Z/ y) l/ @6 V$ I+ }
set ymax 1.0
) E* z! B D4 `( J7 l
; X ~; R2 ^# R6 `* t% p3 eclear-all-plots
+ t" [9 W1 A8 z1 ~; l5 s8 h% X# u8 t9 i& d4 r) h
setup-plot1
! C, F( D/ V! b: G Z) E5 b2 L3 R) `5 `) l" t4 a; d4 Q# g
setup-plot2
1 I: T' m# N- i6 k" U* h: Q* L1 i! M; f1 N7 e: S
setup-plot3" N; k3 [+ |+ Y' T$ x4 i) F7 g3 F
end
+ T. N1 Z% w5 }+ ?
# _$ L, Q# Y- C# S: R D- N;;run time procedures
- e$ \1 q2 d6 y P& d) c% |7 b+ w4 p, z$ j, h
to go
/ }6 [+ V+ A# P7 u$ N5 v- Y9 k/ ]; k; _# O9 k
ask turtles [do-business]
H, J: y& u% B5 Y2 l! E" lend# U4 N) j4 k( x
4 Z+ F0 B$ W7 V& u" e3 o9 g* t
to do-business 1 l. F. `' ?- X% _" [' T& a
0 z- D; R; n3 N
) i8 }7 k3 Q' Art random 360' D9 B& O% j" F: Y% `6 e' w5 e
N* E) c' i& gfd 1
$ l7 x( L. F. O/ c7 k7 h u, L3 j+ s5 b# k
ifelse(other turtles-here != nobody)[- }3 N' h- D+ J& j- H+ {7 J$ ~, w
3 j" e5 \' C8 J) lset customer one-of other turtles-here% X% D# }) g. B+ }/ c* q8 Q
2 B3 ^% I+ X1 B4 u, P
;; set [customer] of customer myself1 V" I F+ t) }: Y2 `) r: [0 h8 d
; t( x3 S& g" z Z% w7 g+ H% Z
set [trade-record-one] of self item (([who] of customer) - 1)
2 c6 f# `7 c+ i% k; y# w[trade-record-all]of self
7 Q$ [- \$ B6 k: v g' a+ m$ \8 w/ F: s;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
) Q/ G" W$ h* r8 z* f8 l2 L9 M7 M9 D* a' g2 E; w
set [trade-record-one] of customer item (([who] of self) - 1)* J2 ]$ H+ }$ j- m
[trade-record-all]of customer
" x6 s, h* f; S9 B: n+ P; T; C; v' p* t
set [trade-record-one-len] of self length [trade-record-one] of self
1 C2 o8 m2 @) ?( k+ S: [* q- J! e5 r
set trade-record-current( list (timer) (random money-upper-limit))6 k8 x0 v1 K$ g1 Z
" X. g0 t7 E, o
ask self [do-trust]& k: m* k& Y9 X7 P
;;先求i对j的信任度2 n* n! x; a! q) {
3 U# v; i) Q8 E0 A$ `* S7 C. c
if ([trust-ok] of self)
( E4 _8 `' e' [7 K& C, z8 J5 @;;根据i对j的信任度来决定是否与j进行交易[
6 {$ J: H, b# B. p7 N1 g Aask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself& H$ G4 r4 n8 Y( W- ]' |# B+ t5 v& e8 G* f
; O. M( J7 ?4 R. q* C9 |1 Z
[
, }$ f& I0 b4 [, m1 Y! G5 B2 I7 J$ D6 y3 a/ r! Z
do-trade: u8 a% R8 H2 X& |2 A( C$ w
! F' N+ U: ` D$ R6 H! g3 |/ ?1 k: {update-credibility-ijl8 c) G. H+ E6 J+ Q( r
( z6 Y4 {4 m$ K d8 [: ~. c$ }
update-credibility-list
- R; ?3 k; G8 l0 X( F- c1 v9 w8 [5 @, J3 t
, [8 G1 I# }& [- E ^
update-global-reputation-list& x: d# W# V# S! i$ M# H1 v. O
8 B; Z3 R9 O' `6 k$ c
poll-class
( ~5 S5 R" N6 a' z5 w& Z
* {5 {9 t- Z2 T8 }" i- yget-color! b6 {; q. g" i' x) \9 k4 e
6 N1 Z( V8 o' c) t2 y3 Z]] \% p0 n3 ? {% w
7 }4 \# b5 ~9 ]& f, x& {, ]6 l) R4 v2 A;;如果所得的信任度满足条件,则进行交易
5 C1 ?' m8 w7 B. Z/ p% o2 q/ p# a( [5 y
[; X# Z' F' \, }5 p2 G! _! @7 k1 v
7 Q2 f, ]+ O+ P; yrt random 360, L) j9 w: t1 z/ [
6 y! V$ ]0 k* g" V' {$ {- T, a" zfd 1; ]) m, W" c$ }
6 Q3 a# ~. U: z, [$ C6 \- j! z) y
]
% o: Y" f7 H: x' x% U$ Y/ @6 b0 D& i2 K$ L+ M O3 P
end7 h* }1 H) B# }+ N+ y5 B |
: o7 p& ~/ E5 H2 F. V
to do-trust # l4 O8 I8 s4 _: D$ f! P
set trust-ok False5 W: Z }2 A, Q- b! I7 I, n
+ ]# g5 m: I* d+ J
) C# O: f) G/ P ^8 g, i) Jlet max-trade-times 0
0 {: D' Q4 q. ^( s! T" Eforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
+ J# J! P" Q7 p& K7 h9 u! \2 Slet max-trade-money 06 L9 H: ^8 o4 }# C5 t0 W
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
9 y: E ?" G( s2 I5 Xlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
6 H2 r+ N* v' ?$ ^ V6 a; \' w' Z$ p+ H+ L
/ k+ o9 j+ V" B/ ]* k: q( X- Eget-global-proportion+ G) W/ f& {$ j8 u
let trust-value8 z8 B2 r5 V, e& H A; M5 R( z5 p
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)0 L0 A; j# V2 x: M
if(trust-value > trade-trust-value)
; Z$ H% r# ^! R' v8 ?[set trust-ok true]
- o, y; A6 H$ h: s0 G. K( A9 |' zend' p. r6 R: N' B1 b6 I' w+ ]
3 w2 j7 B% _" R, y
to get-global-proportion
& _# W9 U+ N/ P" u H. V `" ^7 Difelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)# w! O9 Y5 L, P! _% Y
[set global-proportion 0]5 p% Q4 B4 `! ]% Y ~2 Z
[let i 0
- o; c$ R( P1 C2 Q" p( {* Dlet sum-money 0
0 b! l# e8 k! y! ?" X- Jwhile[ i < people]
_) s$ ?# Z7 ^, F! I7 u[
- W# r) L2 W$ {9 d0 t! G7 D/ Mif( length (item i5 r$ @+ c% F5 W. n
[trade-record-all] of customer) > 3 )
2 s, B8 h4 Z8 z0 y6 ?2 V: K2 H% `[
( p% b- Q# ~ [; _; g3 bset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
: T/ p% G7 ~# ?. B* n]
; u. ~* R" d/ q5 a. t]
- R& ]; W) t% @let j 0
4 e/ ^* m# p. n U T- M1 olet note 0
; ~* G1 o% @) u* c+ Q& swhile[ j < people]" {8 i- e5 { e8 Y3 h) B" k; b1 k
[
8 b% \5 f0 D6 ]if( length (item i! s, f5 n9 @& v7 W. ~& j. l K
[trade-record-all] of customer) > 3 )! `: _& b _0 t' M% W) x' L
[" q2 g7 y- w, D3 H4 k8 J
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)0 f. R @& t, W# Q0 U
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]7 r9 ^' ?0 S. S5 T
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]& E. T5 F; e/ ^- ?+ [# Q, d* ~
]6 @5 G% P9 P; \" v, |+ z
]
" O; ` t5 r2 l: Wset global-proportion note
7 `; a& l1 [% e3 _) j]
1 `7 c5 @& C: e) A* n7 ~5 Y& Tend
1 k t2 I; @! N5 A7 q1 l
( V0 g2 b8 e! p1 M) F1 I1 [to do-trade/ D9 S* V7 A2 I7 o! _& w+ b# W
;;这个过程实际上是给双方作出评价的过程
" J" j: i5 b# z+ b+ Q0 `set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价/ I- ]* O% Q0 i% P
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
0 Z$ ]. n8 K% N* u. Nset trade-record-current lput(timer) trade-record-current/ L" E( b5 x. s% o# X
;;评价时间
8 y5 I/ s. r, Dask myself [) y |9 N$ t8 A2 U$ P$ n9 y
update-local-reputation
" }/ o0 T+ }" R0 q# Lset trade-record-current lput([local-reputation] of myself) trade-record-current
+ V8 }, m8 R# B' Z]
: `( Z3 d+ E& @# Z+ I9 h0 T& ^set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
9 m8 t! E6 y8 r' N/ S% z;;将此次交易的记录加入到trade-record-one中, y8 @4 [! Y; z. E& t+ B/ \# q) T
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
' j$ ?) t2 b5 B$ b! ?let note (item 2 trade-record-current )+ a! {% j2 Q, h2 ~/ T& ?& {
set trade-record-current4 o& J, i' ~ Y% R+ a* P6 V7 M
(replace-item 2 trade-record-current (item 3 trade-record-current))
% l+ W* _& @# _% l$ G# h+ `! a& M( Hset trade-record-current/ }$ E: j6 A5 f5 ?' y$ m
(replace-item 3 trade-record-current note)
0 j: E2 W; I* F. O0 j6 m& C- W- L# H, j' R
& S& c2 `3 U9 h' M5 Q* v
ask customer [: I( b' F- h, I
update-local-reputation
# h$ T. j; ]! Z: h) M/ N, ?% Dset trade-record-current! r# e6 T( Y/ n3 s
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 3 Q4 N; T$ `7 d. s# ?7 t/ u
]
+ R% l1 p4 x& R. W( i! g+ h! v' A
0 @! o* h- r, b3 @# f( a9 S0 z6 yset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
& y" r: A) ^; K# g) _& c$ ?8 O! U+ Z: y; r7 G. Q! b) |
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
3 f# o; G4 J+ M0 N8 X" |( M;;将此次交易的记录加入到customer的trade-record-all中
9 W/ h" R" @; T Bend
4 u, n* S. w I( I- n% X' B( t! V* |1 [$ D
to update-local-reputation8 z3 o8 Z6 |: n) Z. p! h
set [trade-record-one-len] of myself length [trade-record-one] of myself- d: y: I1 T0 c
' ^ u0 \+ A0 f5 j& f' H0 j4 o0 q# C1 T! p2 L
;;if [trade-record-one-len] of myself > 3
1 a# v: l7 ], r" Mupdate-neighbor-total
$ R" C/ X, x) M s' O0 z6 k;;更新邻居节点的数目,在此进行) r1 W8 b! y$ j# j7 \
let i 3
" w1 i2 r* Y' J: j+ S; hlet sum-time 0
1 C/ R8 o, P; n2 d6 o2 qwhile[i < [trade-record-one-len] of myself]
1 Y; i' D1 L+ R1 U[
3 U- A$ B) S9 w! y. w; W9 Yset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )& K1 l9 ]! ^% q. e
set i
8 Q2 E' E5 F/ u' M: T! K( i + 1)( \4 Q& O; r( ~
]5 I$ \1 K! p+ h5 F* _
let j 3
: r' f5 ^( s2 S1 J9 |8 ]- S6 clet sum-money 05 F$ ~/ j% \( k2 F
while[j < [trade-record-one-len] of myself]' P# U$ n' t! u& d/ X8 W% `4 V
[
- r% A8 U C- w3 G( v, x+ Bset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
+ q) x5 }8 `/ c1 S6 g# T9 Sset j
7 @ f1 o; H! [1 g$ l T0 G2 q( j + 1)
- Y7 e% j! i/ q+ W U]
7 h! k; x/ s) q" }let k 3% h' U& V2 m$ {3 ~
let power 0% @% O+ [ }5 X" l6 j7 O+ G- P) j
let local 05 Z+ u1 I7 E3 E9 z/ H5 y7 O. N
while [k <[trade-record-one-len] of myself]
$ V$ R4 `# p8 r/ A9 S[% _& x" i" u6 j6 D g3 `, q0 v3 p
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)
( j8 \1 k( k, c( mset k (k + 1)' w4 _' m( _/ Z0 i7 o9 w
]
. k' n$ f6 J" w b% Pset [local-reputation] of myself (local)6 Y: V! Z A$ Z$ Q% E" a9 G
end
% w; N N. G$ \6 u5 d. h
+ }4 o+ Z' p$ L1 h4 zto update-neighbor-total
# a. G- t2 S! W1 [; p7 C" v1 r- o, a; p
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 j/ I! W. G: t1 Y
' x3 `9 r. w! E
1 [# r8 L; M4 y! O; B4 ^6 rend
) J' d9 T# M& K3 q9 J4 Q$ W9 y. g" O2 [9 O. o
to update-credibility-ijl
6 }4 `# S( Y8 ^- f- o5 D5 T( n+ n" L, U# S3 \$ O) ?" P3 {
;;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。
% r& N( ~% r( @- e! m; B7 mlet l 0: C: r2 R5 z* J
while[ l < people ]
5 E! Z8 j) e. S1 c' Z4 W% B;;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
( K. i9 V" `% _! _( \; b9 D[
# w' c* d% G* `2 {let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% ^- g8 a r4 x pif (trade-record-one-j-l-len > 3)
5 U6 v; U6 D! Z' w' Z. j0 M[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
& Z% c8 b9 M a6 T; J9 v+ b5 Alet i 33 g# P- C# f' ]0 F9 B/ i
let sum-time 0( L1 I8 O7 W7 ]: K
while[i < trade-record-one-len]4 F+ K+ W5 Y) R& b2 V n1 J* L* z" Z
[
7 ]" J& G. V1 {6 ?# p4 l. `8 i! iset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 l3 i$ k1 s" g9 o+ m% W' v. hset i
3 w% p- F: n' Y( J; c( i + 1)
; Q) B6 d6 `$ V7 Q3 z# o]7 R' ?1 e; _* ?0 m
let credibility-i-j-l 0
3 _ T, z9 K1 l6 F$ V2 t+ P! J;;i评价(j对jl的评价)
3 X5 \! }7 s1 d; \& Xlet j 33 M; Z' W; m) q( P& w1 U
let k 4
4 m3 e3 ? G: ]- G. A& \* S: zwhile[j < trade-record-one-len]
5 M4 ^* K; e6 ~& X[1 J+ _! v4 V1 t4 `) s# O
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: M( g! a1 a4 }8 Z5 q# y
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)( q9 k# j: i$ [" ^
set j6 H4 w5 q8 }8 m/ z7 O+ h2 ^+ `
( j + 1)! J& j }$ }/ w0 x7 k7 ]% c5 c
]
& {4 Z1 ]" _- z$ v5 R" I# Nset [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 ))
; H( H r2 c4 ]4 l) P1 S1 @+ A( @2 r2 z; k4 ]" T
7 D; ?, |9 L, E& u& y* c" ylet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) |. X: `! v# [( E8 A9 ?0 p;;及时更新i对l的评价质量的评价
) l; K5 U0 V4 Mset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ] f* o1 ]8 h4 M; |' z+ |7 w
set l (l + 1)
Q6 x# d# l2 ^! R- U8 J( O]
7 g7 q% V. ]8 H% L$ tend
2 m E& W b9 m0 P/ K8 L* B3 J+ x5 l2 [
to update-credibility-list K \* @- }- Q D: l3 q1 D
let i 0% v3 G/ [1 @$ r" L8 x4 E2 X
while[i < people]4 m9 k2 L% I& ^5 c0 k6 Y/ z, S
[8 X2 {6 `1 i @4 E# s0 I; _
let j 0. V: h# T( k+ F9 R
let note 0( [! T$ q3 t" W: F4 ^# F* ^5 U
let k 0& s0 p' T9 h6 F, s
;;计作出过评价的邻居节点的数目 [ l& K- B- w5 a6 v
while[j < people]! E2 Y1 Z* K' e/ g8 S
[9 ]4 Q l; Q5 `( Q: Z4 M2 `, f
if (item j( [credibility] of turtle (i + 1)) != -1)9 {+ p; A; a9 Y* a6 Z8 q5 s2 R6 u
;;判断是否给本turtle的评价质量做出过评价的节点
8 z8 i# l' U% X; c7 }& R0 D2 E[set note (note + item j ([credibility]of turtle (i + 1)))
9 W4 s! F, t' V;;*(exp (-(people - 2)))/(people - 2))]
4 x/ e5 Y, |, N* j2 A4 Oset k (k + 1) L& B" `6 z$ E
]
6 P" q& q7 z3 r8 o) rset j (j + 1)
, ~. `( o; s: Z. Y: _. t( ~7 ]' f]
& M! Y, A0 U) Z+ @+ \7 M5 Q# zset note (note *(exp (- (1 / k)))/ k)$ r& ]8 l5 b" r0 l" d+ {
set credibility-list (replace-item i credibility-list note)' m ?5 \* T: V) C! E& v
set i (i + 1)* A# z, i% F) x( A
]- @0 q$ C k8 g3 i' K
end
+ L7 s3 `% z/ C% N* T' }% J; w! [7 |7 X
to update-global-reputation-list
& u. ?2 Q5 ~: Klet j 0
8 c; n; i4 r) B0 _7 L! Cwhile[j < people]
& G4 ?4 Y9 m: h% v1 m9 d7 W$ `[ R0 Q# Q; Y! U+ I, @
let new 0
# k6 g8 H- m2 Q! ^;;暂存新的一个全局声誉" ]0 [) N% m/ r% O
let i 0
3 M% @5 c2 J" v1 z, Z$ z; q5 clet sum-money 07 Z4 e0 x4 a" m) s( |
let credibility-money 0: m. J9 {7 x0 Y# p- y9 V
while [i < people]0 {; `4 n* j+ p( k, w# m: I4 N2 e
[
/ {( B' R/ t$ e& P3 D. a3 W) e$ Nset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))) w* M5 F/ p3 u
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))5 R7 t; d) F4 z/ k! ~
set i (i + 1)
4 O) L2 l% E/ g4 ?6 ~]* Y/ ~5 w4 d# u) O$ v
let k 0- M# J4 X) C+ U
let new1 0
+ s4 U$ f ~! \: Q9 K9 c! Owhile [k < people]
6 t% h0 ?/ ~/ ][$ e" M7 z2 r7 b
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)
0 c' G, l: u" Q% p* b- ~3 yset k (k + 1)
2 v8 B+ I$ g" F5 [, u]( f" L+ \. o5 j* n$ {
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
% M% C1 f' s" p5 p0 qset global-reputation-list (replace-item j global-reputation-list new)
( \: D$ _2 R cset j (j + 1)
8 i# o. W$ a: i- W' ?1 `1 B9 \]
( c2 V+ A2 B- aend
5 y/ B- y- ?1 L; }* N1 e/ Q: x9 u/ C, o& T8 V, x j2 f% g+ c
8 l% a c, B6 O: r3 v" l, O- T0 v3 K
0 Q' @% i7 q$ J, `- Ato get-color4 a6 ?% v- T: e8 f& {
- [0 N4 {1 N- x. c6 R, Sset color blue) j4 J. }0 T8 U4 b* C3 Y w
end) m$ f J l" Y' h
; G; \+ U- u9 Ito poll-class
) J6 d. f! N3 k" z: ]4 yend9 N9 q }6 J4 C' g. f( W1 B6 o
8 V0 T# ^8 ]0 x% B: ^to setup-plot1
/ F3 B% v+ [- p; K# M- `
; j$ \+ ^$ e: }4 kset-current-plot "Trends-of-Local-reputation"
3 _4 X' @& w W7 x4 j9 r3 {. A+ }( r8 n' ` x% K3 T
set-plot-x-range 0 xmax6 i$ T6 r4 A" A, o4 V: U0 G! r& W8 w
1 w' q9 n$ H4 A& d; r
set-plot-y-range 0.0 ymax& o4 w, S' B- S( ~* I( m+ k
end' J2 M0 ?& d0 {& {0 j3 d/ ^
2 C. V& m" Y7 ~8 }to setup-plot2& V l7 {; u7 H' J9 ]2 z; S& G: Y
( _& t: Y2 }! cset-current-plot "Trends-of-global-reputation"
3 y$ u& N1 ~+ w1 s! P! `2 j' X" R9 ]/ ]
set-plot-x-range 0 xmax' P3 x8 q/ B/ X7 m5 P, M5 ^
3 K& n" c8 d2 x4 l5 @" U: xset-plot-y-range 0.0 ymax
) }/ [& Y# A! P. O! w( Tend
) i. z% T$ k# t W3 A/ r9 x
- p- L* q* ~/ ~to setup-plot3
% x) f+ }+ Z$ K& S$ ]* }' \" b3 `. p; C
set-current-plot "Trends-of-credibility"
0 b# E, d; ?* E; l4 \$ D( v' ]6 w' |* e3 H, o" |" d6 A
set-plot-x-range 0 xmax
) u; v3 N5 R% v% Q
" W1 c0 _- m& Q/ \8 Cset-plot-y-range 0.0 ymax
+ A. d: v* x/ D$ q% g. r2 }0 x3 K* |end
1 @4 J ^) B; \5 y; P3 r' h
p5 A5 O$ `8 j7 n( O& C- `# N2 {* Vto do-plots3 v9 ?, U" I+ o8 G& T7 C8 ]5 `
set-current-plot "Trends-of-Local-reputation"
F" q% S- O* C* ]4 T) lset-current-plot-pen "Honest service"
2 ? Z4 K `3 V' ^# U+ f- ^' ~end
3 i4 G% @, R( v9 \& s$ O6 ^* c0 P e
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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