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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; E/ n% D9 y5 K3 G
globals[
* O' _- L8 U& l! mxmax* v9 e% U/ Q( u4 \% ]- X
ymax
9 X9 r5 m y; Q, `( ]& Cglobal-reputation-list
- |' N9 s) `$ N1 \+ L: _2 q; G3 w; A4 U) G( ?* h
;;每一个turtle的全局声誉都存在此LIST中
6 f, s x; g, ~$ n2 icredibility-list' |, Y. n; L- ^1 E. x4 H i: n
;;每一个turtle的评价可信度* ?, w) R5 u6 Y5 {& ?
honest-service
7 q. m1 E: }& o* t% R/ a4 M3 runhonest-service; ?$ z6 F; w0 h) T) q5 |* G, P
oscillation1 J B6 E! G+ ], t3 G% v
rand-dynamic
5 s- P/ s. B) K( o9 G1 |]
+ ^: `9 `" j- G" _, z0 N
3 ]! }8 v8 Q. S/ n* ]/ h* T! Hturtles-own[
+ X6 Y6 p* Q" J6 N1 Z0 Jtrade-record-all
8 W' a* t! {8 ^;;a list of lists,由trade-record-one组成6 K# ]. X+ c* H+ c
trade-record-one
9 D( v" u: B4 B i8 m {/ J/ e3 T8 E;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
, t: @/ m6 T$ W( n$ e! c/ r
& S5 |) C; [& u% Z% Q1 [;;[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 g! w9 I0 u5 z2 K) H2 v. a6 l+ Ltrade-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]
$ U- R2 V( [6 @2 \! v: Bcredibility-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/ h! o* C1 Y3 x* |" u ^& X
neighbor-total
: R1 T) _ s* s, y;;记录该turtle的邻居节点的数目' V* n4 B; f/ O
trade-time% c; S0 i# }8 j$ Y+ p. B! ~3 W
;;当前发生交易的turtle的交易时间
9 x" v) S/ p5 M! \6 gappraise-give
; l. c, o1 K0 T' L. R;;当前发生交易时给出的评价
2 B& }& _% ~+ `0 U" k8 Nappraise-receive( U" B3 T6 f3 }' Q! P
;;当前发生交易时收到的评价
3 P" ]. o4 O+ k0 J, mappraise-time
( [0 M4 O) Z. ~& m; g( a+ w;;当前发生交易时的评价时间
* M; R/ y4 h$ X9 ?3 S- v8 `; klocal-reputation-now;;此次交易后相对于对方turtle的局部声誉+ t& H( K/ H9 ^" W: z' t% E
trade-times-total; N: P2 r% F* P& F
;;与当前turtle的交易总次数8 v0 _: t }1 L( C
trade-money-total
& s( {9 I- c1 f+ ? F, _;;与当前turtle的交易总金额; ]' I6 v$ L8 k
local-reputation5 O6 w6 U9 X* B7 {" P- e1 \
global-reputation* U4 u+ Y# G5 L8 a5 u9 _
credibility
3 e- T; y* M* k( t;;评价可信度,每次交易后都需要更新
l! h9 b9 [ lcredibility-all/ |# ^8 p, P6 [) K! y
;;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
9 D) `( b6 K: l/ Y$ T) A/ p
9 f- a& s0 M0 w7 x;;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
4 h6 x7 i1 C9 W! i5 e2 C/ @credibility-one' B- Z4 c d8 t. M0 Z4 m1 I& k
;;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 ~$ G( t3 Y: S; l+ |- D2 P) k) q
global-proportion
# M) l$ [7 ~% e0 f! q" qcustomer& m$ C+ d9 p( f( `
customer-no
+ I7 }; ?# x0 G" Vtrust-ok
6 C! G: m* z4 W0 S; J7 Wtrade-record-one-len;;trade-record-one的长度
8 k. n t- i' K- G+ L6 ~5 P4 x]
& d. R* p* [9 \3 Z, X/ ~1 Q$ Q! C0 B2 J
;;setup procedure
" O4 m4 f. `7 g/ I5 `5 f/ `/ `
' L- t$ M7 c, e. }6 H& r- hto setup7 M3 Z( d0 F! t! m% y1 F
/ e6 C1 P* {$ g7 O2 J& Wca
2 F6 ?$ W6 ]# K9 I6 h# ] x% @' a5 R, e2 K5 a+ H
initialize-settings9 u4 \0 K, n; E9 {7 k+ ?
( d, {: z7 Z8 E' J8 q& w: W
crt people [setup-turtles]
) |# Z3 Y9 |1 e* b' _" c' {. U5 `8 i0 z2 }0 K
reset-timer
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poll-class% X) b+ J0 B F: S' C. ?
; p5 ?0 \5 N" A( S( O0 ^/ x* Qsetup-plots
9 d9 `- J2 i% c' |- ]# }- X; M: C, Q' A9 h% Z
do-plots
# ~, O# X' x. `/ j9 C# K2 B% Oend% p. C9 W. C: u) ^
3 K2 O8 l. x8 y. A) r+ t( J- w
to initialize-settings: Y- C8 ~. F7 O- l# c3 n
9 F% r- O/ ]" ~/ ` ~; E% iset global-reputation-list []. Y4 S- V. P$ `+ Q7 ^
9 f* [$ F- \1 L: t7 n& ?
set credibility-list n-values people [0.5]
) H* g- o9 p, ]! h, e- Q
0 d0 Z$ a& i5 s* } zset honest-service 0/ l& o- V- u4 ]) q/ U
- R/ }! F4 H- sset unhonest-service 0
5 U5 G! s; g1 N) R! H L
J* a9 w# i6 N% {0 c. @set oscillation 0
- }! o$ |# B$ L9 y$ `5 a1 Y
/ x7 y7 W3 m! s3 T. eset rand-dynamic 0# l, |6 W/ T! D! `: X1 v: ^
end
9 ~( I) k% z9 [! C9 X
+ R8 Y: R+ `. j. b" l+ Y. }# zto setup-turtles
. C8 R7 k$ S2 { P/ D; t- S* A4 wset shape "person"
/ w1 t) k) }* a6 u, S5 Xsetxy random-xcor random-ycor! |6 r: x$ M) P) [( H
set trade-record-one []
) x2 ?. D/ k# Y* g" ~% H
; ` K7 k, I( N9 e- N, _set trade-record-all n-values people [(list (? + 1) 0 0)]
+ y& X, ]5 R) L1 ^. n1 H
- u* z: Z7 D! D! a1 C9 Lset trade-record-current []
$ o# @2 ~, Z7 d6 l) N5 v! }2 Rset credibility-receive []
) J6 o* d7 |9 M1 R: m9 U; vset local-reputation 0.5# P# U3 E8 r9 j+ I- j
set neighbor-total 0
# ]4 J# T l) T5 q% ]1 [- ^set trade-times-total 0
I/ `2 I* R# I% l; Dset trade-money-total 0
5 P1 d; k- X( g7 J! O/ Bset customer nobody
: s& |8 ?( y8 l: d! V4 O4 dset credibility-all n-values people [creat-credibility]
' T1 w$ i2 m+ a9 T. b9 N1 lset credibility n-values people [-1]8 {% O; M0 g0 S3 q
get-color/ Q9 R/ _$ G; U# f: Q9 l0 c8 f% ~
9 E" `5 y( Y4 B8 e R& E
end2 Q7 V" T1 T+ n: E; W7 M& E
0 D6 O% i" B7 |5 K
to-report creat-credibility* X/ R0 R) N6 ~* d- V
report n-values people [0.5]0 ~, ?" V# u) R" u. z( |" l
end) O7 h3 z3 Q3 ^& H% P) I4 g
5 L$ \5 j- S% ?/ l) Lto setup-plots+ \$ H* v' L6 F9 u9 T+ W# e
7 p T2 D. p; H) T* e' J1 {set xmax 30
) [' h! ?6 ` s! P1 a/ j9 }2 x( a4 I1 O b
set ymax 1.02 f9 ^' g. u. v, F, E+ G: w
% S( B' T( O5 k% ^& l* T
clear-all-plots
# F* G* k' i! ?, N7 o$ j
6 q# Q, a( w7 F+ Q& Wsetup-plot1
5 m4 V2 M& C; g% E- Q6 \4 g1 y: Z O7 _' u; r" M
setup-plot26 _+ Z+ U2 q' a4 \" D! P
% L2 B( @/ _! f( e: h
setup-plot3: \. |8 z2 H/ y/ u( F3 K
end
. \7 v$ W3 W4 g f/ }+ \
! h" t$ t% a. J; H% T;;run time procedures6 M+ c0 C1 l; f8 B1 X$ [
. O. G4 |$ M9 }* P
to go
8 M3 [: D& j1 ?6 S
! H' {/ ?) E/ W% |- a! lask turtles [do-business]
+ s1 ?' ?( e$ `, K: bend7 s2 m2 I! ]9 |, _) \3 H$ f
9 g' |/ Q. D y- @/ }5 {' U; u
to do-business . C) q5 y+ Z- \( O5 L
3 M _9 Q6 S6 l3 Y6 c
/ a$ \! G9 f( f" A$ Yrt random 360% {2 r: M: u( V$ N
, O ?% T4 L0 K! M2 N- Bfd 1
& T+ [' L- Y+ m6 p& i/ C7 O. G3 y, r l+ Z4 d- ]
ifelse(other turtles-here != nobody)[
1 ? h) T/ k# X% ^0 Q- N" w* a& m6 z [: h3 X( D: I
set customer one-of other turtles-here
3 d& S n( a! P1 |7 ]$ K f
" @/ S# h, n9 h5 o. i* q% E;; set [customer] of customer myself3 c2 w% C! L: v: u. R. B( R$ \/ m
8 P6 U: I* L1 A3 m' e3 Gset [trade-record-one] of self item (([who] of customer) - 1), I5 ~1 G6 X. u) l3 i
[trade-record-all]of self
$ ?* Y. ?% |5 e% q: t, E* o: d;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
/ }8 G2 k+ R3 C
. R8 {$ k! p; ~; a: }set [trade-record-one] of customer item (([who] of self) - 1)& \: ]3 q( \' A2 v% m4 n5 n0 k
[trade-record-all]of customer
# F# ?( u- s+ }5 A2 |5 o1 X3 \0 a) ~: ^; e5 b/ r- e6 E
set [trade-record-one-len] of self length [trade-record-one] of self, w4 k* m. Z; `+ p
. [( x$ ` T- U6 }
set trade-record-current( list (timer) (random money-upper-limit))
f- c2 f6 l: g8 C4 m9 f
5 {/ B7 X2 I9 G! c' \! w6 p3 d+ Wask self [do-trust]7 n0 O" j- C5 c5 ]3 j* ?4 I7 G1 m5 L
;;先求i对j的信任度3 M3 H. o, l4 |! Y' G" o3 \
8 ^) p; M+ L# k0 D% \
if ([trust-ok] of self)
- R- p7 \6 i. P7 r$ C* v; |;;根据i对j的信任度来决定是否与j进行交易[/ `/ _4 w) d& Z6 ] {
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
+ F2 w& A i3 z1 L" Y3 K0 {; S3 y$ }9 ^
[
& s& N1 n' U( x6 _
5 n$ u% t. f9 n& }do-trade! t1 V5 I0 `& p( r
9 {# @6 }, X. B& ^& L) Fupdate-credibility-ijl+ [* F7 E: J6 P, q: Q) k
2 c1 q! p& I8 z+ i: \( W4 |: |7 Pupdate-credibility-list+ }8 j8 u1 M; B" r0 W
b8 t- @9 P, j. f
2 K% R8 ?0 b' v& qupdate-global-reputation-list0 F% y. w* x4 e' L: d+ L2 l
2 W5 J3 [# C1 r; z/ j
poll-class
( g" H% w: T/ \/ l0 c
" Q8 E& i% Z/ \# K5 o& ^! ]. G! Pget-color1 _) Q4 J+ a6 f" ^# a
/ u, |8 O$ ^) |1 ]9 \]]6 r) R. s& e7 z2 L6 j: B) \
8 U6 H) j7 j# k" q5 B+ x* F. L1 g
;;如果所得的信任度满足条件,则进行交易
! y5 Z3 e6 d( O9 V
* N2 }8 `" L j& z& W, g9 r[( A/ Q4 B; T& `3 k, V7 l, G2 b
# V- f2 \% b; o
rt random 3602 O/ [2 [+ P3 _. \% f$ I! G
' R( d6 I7 w# ?& l4 m5 {4 R( @fd 1
& H* o% Q0 y; I; A" Y' [. g% M0 X$ t! m
]
" P: h5 }" F: L- {7 p+ z( _( U3 p( v
5 F5 a. D4 s# {end
1 p# ~0 n: y* Z. O9 Q; P7 ~& _1 H: o% W! W* y
to do-trust
: O- m$ u! z7 [' E3 lset trust-ok False7 v' `1 r7 m8 U1 `3 L4 e
5 S+ o7 `3 @$ p" i: u% g9 b3 X4 v8 J
let max-trade-times 0
$ @3 ~* K: {8 u. Qforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]9 y* `) p2 }$ @8 L; n/ `
let max-trade-money 0
7 Q, L$ e; f6 K7 ^2 Rforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
6 ^8 t/ O+ O' L* r L1 A( glet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
# j" S" m8 D6 e2 g/ B
" K+ j# O" d1 K$ A/ {5 _' Y& {4 J2 R; y, s2 m4 N/ o" t
get-global-proportion6 ]2 d3 M! u! q
let trust-value
# V2 ^2 {" O2 w. Klocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
7 ]- A- G& \( C7 H" y: [; W; B2 Zif(trust-value > trade-trust-value)
( x' V3 S3 G; M8 C& j) S8 t[set trust-ok true]
) v, Z4 m" E l, r3 i9 m" o' G' }end
( I( s0 E' k0 {! P/ c: r7 J
) E& N0 Q7 Y5 X" m9 hto get-global-proportion
% d* n3 K1 O; W& T* Z( e% |% {ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
% Q: d# Z! L! U( C% t* O% V8 U[set global-proportion 0]& }; _" l( {- a6 I% d: }) ~. U/ K
[let i 05 p9 O4 K0 n+ p$ k5 F _1 K
let sum-money 0
9 P" C+ b2 D8 Mwhile[ i < people]
. K8 J8 l7 X/ |) K8 K[
' ^) i" T, y/ c& `8 r: Iif( length (item i0 C8 j' c7 d0 V3 O) A+ X4 r% r. X
[trade-record-all] of customer) > 3 )1 l* {+ k+ G) N2 F8 k9 K; F$ c
[/ X/ k$ |0 y* J6 k% d p
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
& Y( O# }; ^$ O; ^, ^$ s) s]
! |8 _$ b, Q [' h]
+ M4 \ y! W& }# p2 n! V" w) E: glet j 0
# \! Q: b' r! y% P5 O( z, R. klet note 0
. n$ K3 f/ G# P# o) ^while[ j < people]
6 @( P4 @* l4 l) I9 ^6 X1 V[
$ y. P- W/ {6 }8 Kif( length (item i4 Q# a5 Z! y" |" c! |
[trade-record-all] of customer) > 3 )) g: W$ B' u8 T( |6 w' F
[" H, ~' T( l2 q. q7 B* K& B
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
$ `4 x1 U: y# S8 l2 x[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
Q4 w) D" m4 v, K; C[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
$ [! j/ Y' E' F& k1 s- L) z/ n]
, Q" D+ p. C6 [5 X" w' Z1 ~]9 }3 \, m+ X) ?1 D3 i" n% b- a
set global-proportion note
* H7 P3 i6 ^# [, Z2 @ n6 d! _) O]+ `1 @+ Z6 \4 X
end
; y; ?; p7 w- X. H9 C. ]% q/ b. l5 n7 M( `% i$ t1 E
to do-trade
% [. j: {8 ^1 q! ]5 h' l;;这个过程实际上是给双方作出评价的过程% c3 o! p- Z5 R! ]' k6 Y# n! D
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
" ]. @) |4 u$ ? E. H* m( v' S, rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
, l3 D6 u, H4 t' M7 m9 @2 fset trade-record-current lput(timer) trade-record-current7 ]& W0 e& z5 r: n5 ~# S( |
;;评价时间
0 F7 G% _% C5 n* ~4 n5 M. Aask myself [
. I$ e" o `; Hupdate-local-reputation
6 m" x9 {8 N0 B* M$ aset trade-record-current lput([local-reputation] of myself) trade-record-current3 G4 T6 b$ Y) l" V! H/ S
]' o) \2 D4 a T" D$ z/ Y0 ^: r
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# {, t# j: A' e' P3 d* X5 U7 ^
;;将此次交易的记录加入到trade-record-one中$ Z* C- w% S2 c4 M% y
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 P; q+ S8 G0 ]' `. y; |
let note (item 2 trade-record-current ); J! `5 p( T0 I' [" I! P
set trade-record-current C, V3 L2 }% L" A, W4 |
(replace-item 2 trade-record-current (item 3 trade-record-current))
4 w4 H7 b. D9 B' \: _# E4 Oset trade-record-current
/ v5 ?; |/ L3 B( h! \% d, Z: h(replace-item 3 trade-record-current note)/ R! {) [% l& \. D( g a
. ?7 v5 \3 z! D
: G+ {/ z9 S: w, {4 Eask customer [
, p7 e, P' c0 n* tupdate-local-reputation! k6 @( G. X3 A2 n
set trade-record-current
0 @6 M A7 r K* p# k(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) & {7 e. z& @# r j/ K }
]
' J3 Z2 o; `( r9 \6 J8 b/ S. M( O/ S+ d. B1 s7 K
9 c: J. y, n# ?% V& Xset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer, ` X- a& L: M0 x
M# e+ B$ l6 K' `2 |- ~9 n) aset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 }. H# |+ Q% E8 u$ f9 g9 Q. {
;;将此次交易的记录加入到customer的trade-record-all中, \$ X# z* T9 h9 n) j4 s
end/ D3 d6 E8 S' K3 z+ j" h3 [
% P0 A+ q& J. A9 xto update-local-reputation. T5 S1 k; l( r" N8 E2 m
set [trade-record-one-len] of myself length [trade-record-one] of myself D; d1 _+ m" N! z2 W
% l' c2 L; z( Z, y1 c
/ U+ q9 ~/ U# d+ C2 ?8 K) J
;;if [trade-record-one-len] of myself > 3 - L+ f7 s( ~- t5 f( M
update-neighbor-total6 E8 s: u6 ^* q v" {+ W
;;更新邻居节点的数目,在此进行1 i6 [# D/ o7 @, f/ S% `+ n# G
let i 3
" g6 i8 x' P$ x. g! y& S$ ~0 Ylet sum-time 0
' Y; d8 X5 x; N. M s4 E( h0 _while[i < [trade-record-one-len] of myself]" C) B' ?+ Y' z8 e d; ]. R3 s
[. m0 A- e. V$ k, G- ~, S
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 }9 b Z- `- x5 z" }7 o
set i
9 N! N9 |3 p, w2 ]( i + 1)
( u/ Z: `% w/ t7 r3 R]
- f% m; T( ?/ C8 Ulet j 3( R7 U* d. E; _) T. c7 X, b" _0 G
let sum-money 0; m' z6 a5 C$ g, P$ d j
while[j < [trade-record-one-len] of myself], L1 \ K1 I% \; }$ u9 X
[* o( d. k4 D0 L/ ^, G
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)
j8 a: u4 h1 C. w# k4 }set j1 g8 a4 T* i& N1 d- z
( j + 1)
4 K0 u% r4 X8 X" s4 @]
; J5 L' N# G" V* }2 n9 Q* s2 J, Mlet k 3. n9 q8 z: _' V, h8 t
let power 0
+ C1 W* p$ y) @2 I. Blet local 0
& V+ o# E" Q$ M+ r$ Y3 U& Rwhile [k <[trade-record-one-len] of myself]
, r2 ^6 D" T* W+ Q; c[6 `! B% O5 x* S, L+ {( t3 P" n0 v
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) 1 D! `# N @) H; i& e6 r6 O- M( x
set k (k + 1)
" R2 O( s \- E/ m% ^]1 s" X- D9 Q+ r. c
set [local-reputation] of myself (local)6 O* D2 e1 a* d$ e" [
end" @0 a9 @8 M$ g' T+ ^
: d5 C8 y9 ^9 I# A: _% S9 Q' Qto update-neighbor-total
2 ~7 T1 L4 C; y; o# t8 U
0 |9 Y0 W! D: {6 @: Y7 k7 b: Gif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
) b |% S/ H* |
8 A W3 O# S" u1 b, ^* k& p; C+ Q
' f# g1 q, q" T2 _" f4 V5 }end& I( h+ P0 c* m; e
) g) h$ i4 K8 J3 pto update-credibility-ijl
+ @. }' [4 o, T! v+ \
/ X% q& j" z( B! ]: U% 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。8 @3 Z" J% C v
let l 0
" @, S! b/ B; i8 [% o. ?- N nwhile[ l < people ]
) l; b( S1 H' E( t; e* N;;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
' }# T+ B+ E4 J: Z- p, l, k6 k[
! G/ s/ h; G1 [8 l, h2 F/ rlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
$ F! r) h3 R( { J1 t) Iif (trade-record-one-j-l-len > 3)
( p, ]$ r0 J6 w7 A6 J[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
) {' M& Z7 e' y% Z- Llet i 3
4 L; {/ @7 _ m2 Plet sum-time 0
' E" E7 C4 R, P& V9 |* e; dwhile[i < trade-record-one-len], O9 r O3 t' }9 v: j
[4 ]# S' }7 x# B% Z) E. {. {
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )% a' E& v4 }# u8 p: P3 o
set i, P9 `& |" n: [, ]6 r6 u6 R
( i + 1)+ W7 ~6 o W* l8 O4 D0 X+ q
]
5 s3 ^" L$ V) ?, Q/ {' E3 Qlet credibility-i-j-l 07 {: V4 A- B) }: y5 |! d u
;;i评价(j对jl的评价)
2 X7 m' m6 |3 e, U& s3 N0 M* d* V) {% Zlet j 3
+ M, E) s- y# d& n5 k% Jlet k 4. c8 ?, I6 Z' k2 e& r4 ~7 f
while[j < trade-record-one-len]. U4 R B6 X. X S8 o: K
[& W; W$ n; U. @* i
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
8 \/ e$ \6 z# q/ y: G& f1 p3 e: Y8 r$ wset 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)
; ^6 A X9 {, Yset j0 i E- N" c3 t
( j + 1)
. U9 C- J: J9 \; b$ h T]- I1 g( w. j! l2 _& J8 J' ^* 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 ))
9 M6 ? q5 E) n1 }. ` W- R$ ^1 E/ S- i6 q
% c7 ]% g( I2 n- D. Elet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))- d3 G! \; C: y# K6 ?2 Q6 g
;;及时更新i对l的评价质量的评价6 a3 ^: [- F3 ~) K. E+ ?
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' Z2 {/ j, b+ Cset l (l + 1)) p1 o. m5 \3 B a
]
0 M/ {2 x* h; @$ Iend
+ T6 [. d* ]! S+ u) G. y+ Q7 x% M0 W8 c: J
to update-credibility-list; Q) V* p9 T! \) ~3 t
let i 0
1 K& B! g1 r. o/ u, f$ c G1 K4 ^while[i < people]
% ^: q# o9 s2 O' a% }[/ d6 k% x. O/ p1 d* A( z+ T
let j 0- r3 F' p! S) w; b8 O1 G0 J' U$ n
let note 0
; Y+ h$ u! _. t# F; plet k 0
9 ?, `4 H! y: B- O; U. S;;计作出过评价的邻居节点的数目3 H, e, W4 a, l) g4 {" P
while[j < people]
$ U' n* l. O0 i; K[
5 K8 x& \+ ^7 @6 }3 Uif (item j( [credibility] of turtle (i + 1)) != -1)
# @; ]$ V9 u# J" C;;判断是否给本turtle的评价质量做出过评价的节点
& O, i! e) S: `9 N5 B! G! B[set note (note + item j ([credibility]of turtle (i + 1)))
- @0 o$ X- r! e T;;*(exp (-(people - 2)))/(people - 2))]7 a; n; z/ y. \+ z( ]
set k (k + 1)2 p/ D2 M- y( u* O, [3 k1 {& `9 j$ s
]
1 X, E0 D% R7 Jset j (j + 1). w+ Q" `; }8 b* z6 z5 T) m
]
+ C- \: j9 i1 M: {: |set note (note *(exp (- (1 / k)))/ k)9 P1 L1 ], ^1 W& l. S& F" q# f
set credibility-list (replace-item i credibility-list note)
$ n' I! a( W( T& p. \+ o( R( mset i (i + 1)9 g; w0 k( @ J7 M4 ~2 D
]
+ E8 e& c8 d1 m. G8 g, Jend
) D7 Z0 {8 l" O" b) b
5 A; g! M; _2 Gto update-global-reputation-list$ _$ d& X7 H; K
let j 0
# T$ i9 c. c5 d3 T3 B" S7 J3 ] owhile[j < people]
( R/ G1 {- S4 R$ U$ Y+ T2 a( J[5 u1 j3 k9 u) I
let new 0
. v0 Z9 j' A# @2 I;;暂存新的一个全局声誉
0 {& F, X) o" Y3 x: n0 Llet i 0
. M+ A3 Z9 A* V' V0 G7 P* blet sum-money 0; W$ p9 p1 b$ ~$ N
let credibility-money 0
* E' v# r; c, {) x, J3 q6 @7 o Fwhile [i < people]
5 q" O1 z: ^. {/ H[ @3 ]* I! I( x! |
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
+ t5 R' ~/ h5 jset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
o/ s0 \' Y& |6 W- d# ?7 mset i (i + 1)
$ h+ f+ g$ ?* u) x0 Q3 b]# |% S8 j% N( e) W
let k 0! i- r- ~& l4 X& N# Y
let new1 0) B# K0 ~6 f" q: i
while [k < people]
' x4 O w$ n0 @[& E7 |% Z8 S6 k, \) H4 @8 x4 P
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)
; ^% u" e; v+ j; tset k (k + 1)% b$ t/ P3 p' P( h5 G
] N9 Y. O# [9 b8 h" I0 M9 W+ l* u4 }
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) & {( r- |! V, H) r
set global-reputation-list (replace-item j global-reputation-list new). D2 B5 `6 }* M0 _/ T9 n
set j (j + 1)4 q" R0 J: L Y( f1 v' U8 ~
]
0 Y6 a# ^( W |! T4 yend
! x X2 I- W3 B2 V; a+ C+ [1 I0 Q# @% [9 j4 e2 _9 |
, @8 @' v o" e
: p5 E( Z' ]5 }0 W3 @to get-color
" x% a \6 W1 i c' {& j7 I$ V* A' a8 W7 H+ ?
set color blue% K, \ x; ^. z" w& Z" j) k
end
5 c2 A8 Y9 e( E* ^- d5 V5 O3 E% r/ d( r* j; S3 g* z
to poll-class) K% A% U3 e% s% V% }) y
end! F7 e3 U+ x3 E* Q. [2 e- u
) R3 V0 D7 w' V7 T* [to setup-plot1- H4 `8 w8 T% d0 w/ j4 \/ t! g
1 x- v j, u0 x3 ~0 {0 m C* {
set-current-plot "Trends-of-Local-reputation"/ Y( a# W* h" q2 z/ r4 T
" I7 e: {2 |# X5 R5 Z* M$ f+ T
set-plot-x-range 0 xmax/ f2 A1 U* i# ?$ C1 a
+ J) m# v4 E5 X3 P3 Z* N7 z5 u. ?7 K# K
set-plot-y-range 0.0 ymax# n% m% M2 S/ E; |" m! \
end
! u3 |2 u8 }6 i# [& e& v! }" A$ I- U) s5 c8 f
to setup-plot2
9 M& X$ y& T4 s S; e8 i' O9 S
- p1 e& s {5 X7 dset-current-plot "Trends-of-global-reputation"
8 N! ?# h6 P/ i8 r R# E4 Q" L) L
" L7 [% s" p; r4 T1 ^3 T, r% Aset-plot-x-range 0 xmax
* g' o5 G8 x+ X! e: @4 c
- ^# {0 q7 _ ^8 Q9 }set-plot-y-range 0.0 ymax- Y- S2 H. c1 o* ], R
end5 {8 H. a8 i9 F5 @5 e$ ^ T0 t
. k; }: O1 `: f) h4 N2 D- }to setup-plot36 ]* {9 A9 ]0 J( b# _6 S0 e
1 q$ C" F6 R/ G( F. Q! r& Rset-current-plot "Trends-of-credibility" i- C1 p' g3 O; J
, m" L2 z, Q. A/ bset-plot-x-range 0 xmax( H/ J* q8 n& v' M& ~( w
* T! f" J7 y- W" Jset-plot-y-range 0.0 ymax
8 w# N, j$ F4 M. J9 D6 A' E1 uend
+ b1 S8 `- ?/ K- o1 \& X# C3 z- N5 k' j
to do-plots( j3 i# p9 T6 u y1 }8 M: Z9 [
set-current-plot "Trends-of-Local-reputation"
; \, _* k8 r% P) uset-current-plot-pen "Honest service"
0 O' p/ h P+ S* L: eend) X! ]4 q4 B' T: u( h5 @) m
1 C2 ^7 V a( @
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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