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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- ^9 V3 r8 f* P+ a
globals[
' t9 U. ~ K1 B0 @xmax
8 J% O* h5 j2 m( O. L" M' Mymax: r* h1 C0 @" t; j& J* f
global-reputation-list9 ~) J+ R3 I3 s& R$ a3 p
, x2 v/ p& G2 y! Q/ Z r: T
;;每一个turtle的全局声誉都存在此LIST中- W8 a+ b6 i$ V( B, B1 f
credibility-list
0 o2 ]/ T/ z, t4 B+ \$ l;;每一个turtle的评价可信度* h* L; ^: J3 e
honest-service' b+ U* k1 A9 P/ A- T1 b
unhonest-service- g3 u+ C }2 Z- D/ @6 P) p2 o+ E
oscillation; _; }- }3 J$ v$ C# O! j3 Z( U+ O
rand-dynamic" o( j1 r- f* g& ?3 D$ L: h! A
]
1 c) |8 L3 `# D: @5 Y! a# e3 ~2 ^1 C; |( o$ g" Q D
turtles-own[7 t. W% e- e8 _( F3 l4 J* B
trade-record-all
! x( ^- ^& l3 V" s( e c;;a list of lists,由trade-record-one组成
) M4 u' H$ t; q, [3 _* atrade-record-one1 [- Y' Y5 Z+ l" O' ^0 M
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
! D' X0 l1 a% t6 B" \7 \; S% N3 O
( l- x. w0 e& ]. 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]]+ n: g! z) X% {1 E7 w
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]
; @+ H' `1 G$ V& u3 P* ?9 ]9 Fcredibility-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
5 ]% Y% M0 t( X2 Y3 N J. F! |! Lneighbor-total
- G( a! I* j, ~- m& w2 o& t ?;;记录该turtle的邻居节点的数目
' ]: d [$ g2 v! j1 rtrade-time
3 [5 h& ^; _/ M0 j- t4 e9 i;;当前发生交易的turtle的交易时间" e) D1 f1 V) z+ F4 `# e' x
appraise-give( w7 N: |: C) K! Q8 G
;;当前发生交易时给出的评价, S& ?2 V: V- h
appraise-receive' _6 ^, ]% j# U; M( t
;;当前发生交易时收到的评价
6 t6 K# e4 }3 s0 ?appraise-time
% e& G6 C/ n, ]+ F! V" |0 V;;当前发生交易时的评价时间 }& ]$ |/ P! X
local-reputation-now;;此次交易后相对于对方turtle的局部声誉- w; P; y" L% b, C* A2 i
trade-times-total
4 C- U! D1 w/ f2 B;;与当前turtle的交易总次数8 D/ [' a% o' X9 w. g- }0 }
trade-money-total
# X) _* N& E5 g) E0 L7 y;;与当前turtle的交易总金额- t* X2 |/ s9 g
local-reputation
+ R: s ~4 A+ Y, t0 ?- p- bglobal-reputation1 Z" w9 H$ p$ x0 d y0 b) b* p2 e7 b
credibility, l# Z0 d" E5 x8 ?* K
;;评价可信度,每次交易后都需要更新1 ]/ v) q K( O: f
credibility-all- S% K$ r7 r8 x0 `+ l) ]
;;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
! G( I9 A. D8 Q! c
$ J9 T9 m5 y. G8 ?7 G- {6 X7 q;;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
6 f, v# Y5 p6 Bcredibility-one9 k- d/ @, i; b1 g8 {
;;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
7 L9 z& z5 w4 }0 K7 tglobal-proportion( e3 S7 r9 |7 L. \' a) l: a
customer
0 c; ~% ?; w* B- w$ \2 a& w) m; C% kcustomer-no
+ h( @1 t& X- qtrust-ok( `+ h! P( _# |1 G# f) |
trade-record-one-len;;trade-record-one的长度6 ^$ J1 O! N# ?* l; t% I
]- P6 L& Z, q" d" R2 F7 I
) \! a, U r5 g0 g9 H$ _3 ]
;;setup procedure
* o" ^) D: ~2 Y) x0 Q3 F/ s* t! @: L" _- B& g
to setup% D/ w6 c5 A- R' Y( z3 ~0 E. C: D
: v( _% I- ]; Wca2 m9 {$ M5 Q" }% ^7 m, b, B5 e
$ D2 n' F$ K( i1 [9 O+ ~, D
initialize-settings' H$ G$ H5 m! E! x- l5 X/ c- L
: T9 o8 l5 | R/ _' K7 h
crt people [setup-turtles]5 c' G* K$ k& w$ d& \2 }
1 F' n; M9 `2 \* m4 [
reset-timer ^: J+ a6 m( [6 c, t. B; j3 Y
' ]: x6 a) y6 H6 J/ F fpoll-class
2 s& ^" H! h2 G
+ Q. f# r; C6 M8 Msetup-plots
1 P' M7 t g7 N: o0 A* w8 U G* K3 c" C# ^1 c. h
do-plots# h+ r! O; T2 `& E
end
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# R- p8 n/ w3 w, Y$ ~' d( r0 uto initialize-settings! ]7 y/ ~# b8 {7 G0 S* P1 X y3 [
9 H y" H D. d. t- H# `set global-reputation-list []! ]" i6 Y; C- k3 k) g
4 @) N* y# K5 d4 ^set credibility-list n-values people [0.5]
, Z. T: k+ p9 `# n0 w* V. `+ w' N) S4 ~* Y' H2 `; M( a* Y
set honest-service 0
$ l% ? h0 d5 H5 a' a) R% q
$ f) B/ \& C/ J( b5 v' ]5 J) gset unhonest-service 0
# c- x! q4 d6 i' D! D0 b$ Y0 ?
: U- m! |: P0 C9 Uset oscillation 0
0 K& U4 f' ]. c3 j; V4 w C. V, h2 L' D) H5 b1 ]
set rand-dynamic 0
+ M* Q1 p4 v C* Eend
8 [$ z/ d4 ]) d0 h& P+ G2 v9 d1 u# A% n, l: m! Z
to setup-turtles [+ b! O* P3 O3 H3 h1 b
set shape "person"
4 d0 M& _+ H- w& csetxy random-xcor random-ycor
4 b. S w, W* H2 Xset trade-record-one []
+ }/ H" Q* Z; T! }0 D# t! P! [1 E
: p/ I( B( U+ aset trade-record-all n-values people [(list (? + 1) 0 0)] ( O J$ D4 M& W) f" F( K/ M
; ^$ j9 `9 }9 M r* H2 V0 k
set trade-record-current []% K" T9 H. b" G* r# b4 w
set credibility-receive []9 w; s" Q( B' y
set local-reputation 0.54 i# x1 p$ F3 r
set neighbor-total 0, M5 C& _( f& t/ ]" o. c
set trade-times-total 04 u, H9 }. C/ ~
set trade-money-total 0& B- M8 n$ X. ]# C h u$ T! B2 O( l
set customer nobody
/ B. j. P C! d% Q9 V6 i0 i. Qset credibility-all n-values people [creat-credibility]4 O4 i+ I" ~# u& D- z
set credibility n-values people [-1]3 J8 m* }5 [+ F3 @; T3 S4 C+ t
get-color9 N! M6 _( c) ]3 w* O; L' Y n: |+ k
5 e. `1 s3 V1 E z4 ~* g
end
8 }' U* K& D( V- d6 H+ e# ^ t# {3 ~) l# v+ ^
to-report creat-credibility1 Y4 e0 C7 W, b
report n-values people [0.5]
1 S4 S& z: U% I4 jend
9 w" A+ U- O% ~: [8 [8 ?, G% D# E
* g7 C( Z! m7 X. n, E3 Eto setup-plots$ ?- o) |+ Z1 {
: A8 s1 s$ n( ]+ b: k. e
set xmax 30" T/ z/ Q7 O4 M& G) T
8 d3 U* a( X" c, h0 z
set ymax 1.0
% a& F* _( R' ^& j& U
- D3 t1 }; F" X! Fclear-all-plots
: M- i8 g" ` G$ B% o
3 c8 B6 e3 p8 b2 n! i4 Csetup-plot17 w; _# I, V+ ]& b* ?- q$ |
* V ]; V1 c) p$ @setup-plot2
1 @3 F0 ~# I' l
; o3 g1 y, b7 w7 Y3 o* ~$ {& Osetup-plot3( }0 Q) U+ k, {. p" @* q$ N! Q; U& t
end
4 K* Q* f* {' e1 B C/ \) z N1 M" S& \: y3 t
;;run time procedures
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to go' T3 D0 e! S/ m$ y1 w& k
5 ~) [( U! _: P6 R) c1 H3 v
ask turtles [do-business]
3 @" I' j1 P" u9 a" o3 ]' Tend
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to do-business 3 C. L6 H3 i l9 _2 J$ G
3 H$ O# h( r! d+ o, V
$ f( e3 }! ^, Yrt random 3603 P5 J: ^8 V$ @( N- r
$ c3 Z; W# Y: Zfd 16 ?) d n4 z6 }6 [ j
# Q# J4 ?$ I1 aifelse(other turtles-here != nobody)[
% m4 d+ C0 I( B- F' `7 J5 u
$ v% h0 Y0 G* c% o/ d* ?set customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)6 ^+ `8 s' Q m: G! L2 f4 d" M& w
[trade-record-all]of self
$ [7 k4 n$ y4 p. {: q8 w* ~;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self' s0 [+ y$ z8 ~1 }
2 B/ a7 B+ p2 A' ^+ t7 d2 i; oset [trade-record-one] of customer item (([who] of self) - 1)
: \9 M, N$ |& k: I6 m5 Y2 I[trade-record-all]of customer0 r7 P3 h4 x. X3 ^% m! A
8 `' C: h7 o0 m2 f7 fset [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit)); \/ Z* D. [ i$ W: f H
; N% o. k- [# D1 M$ Aask self [do-trust]
* o, S; R5 Q3 O3 s1 _ A;;先求i对j的信任度
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if ([trust-ok] of self)
! k5 G# S6 Z! F;;根据i对j的信任度来决定是否与j进行交易[
: v( q9 @/ o+ [% l: Aask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[% J' ]" [3 ^8 \# t* O
; S9 |9 W+ b# O) S
do-trade
4 o7 i1 Q7 v& x
2 v6 F ~0 @" o0 lupdate-credibility-ijl
+ Q' ?. ?% f( {: ?' K- A6 H; X; o& D+ ?9 `) T. {
update-credibility-list
( { k% e6 b, R6 _. T, e: v5 f5 t; t0 b4 O
( ?$ |3 |5 o7 k; g l# Bupdate-global-reputation-list
6 Z# m& ~# [9 ], u! }/ v% Q# Q( b I3 p6 p
poll-class# D, u! P7 V4 @# `/ A* x) z
& h7 b5 L0 z+ @2 o- K/ ]$ J
get-color* \: z% o8 ]4 I9 l- A/ @, f
. Z U0 i5 f6 x, `" i
]]( R* K5 s. Y6 C# y+ b6 o
: o8 \0 @0 u& r: @9 G
;;如果所得的信任度满足条件,则进行交易
% S6 V4 I$ K( A% y
* c) `, B% ^' Y# l[
$ t% Y, T' K- N' w* a j Q/ o; C- l/ M; F; Q. P
rt random 360" |' J+ F2 W$ a, q9 g
. c+ y+ N4 ^# Afd 1
/ ^* Q$ U$ e4 |3 d4 e
6 `+ z; i3 ^* o- x9 j$ M5 j]
- o, s H# \$ _6 q! G9 J. S, i1 ? A; t; m( w
end
2 g5 }$ |/ r& D; e3 g- r7 N
5 x+ N$ l! L; p) K) L- nto do-trust
: \9 |& A7 a; X3 Mset trust-ok False
" V! a4 U2 i8 f* x/ d0 S4 J- L* m/ D8 m G1 m4 z
; u2 p! n0 j; d" E }9 x& r
let max-trade-times 0& `8 l9 [+ l! [6 Y5 V7 D+ J
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
; m' _4 g' ?4 ~/ q, a2 P4 `7 Xlet max-trade-money 01 Q8 b% D) s4 _) C Z9 x" U* z
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, P6 ~2 |% c; X2 Hlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))/ L1 L S, w' H0 L: ^8 |
! j" L# Q- ]! [& z* G0 o
! c4 D. C7 r4 Y7 `( _5 Mget-global-proportion5 F, T% c. d9 O( h
let trust-value; p% E. j5 r s' |3 m' I" T9 Q
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)
4 G* v% U9 f& ?0 ] s+ Hif(trust-value > trade-trust-value)
, p x5 H- J/ t- a/ d( Y- c: B% f[set trust-ok true]
5 R$ E. W% }/ \$ gend: Y8 G0 p8 _+ Y4 M7 }, U) ]0 k
' D9 s. Z: }5 T4 C
to get-global-proportion
1 ?" n. {3 K' H: rifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)6 u/ }# p m" l9 Z/ W
[set global-proportion 0]
* Z+ h J X( ?+ L5 v5 }) @; B[let i 0) M% z. i( ?( h- T" N) F
let sum-money 0
2 u6 V& e: l" y! F0 mwhile[ i < people]
. O/ U+ r: P/ e% U[
( E4 s2 J2 _& \( |% |if( length (item i
) e: M# \3 x! `8 H7 Y; o[trade-record-all] of customer) > 3 )3 k& N: \$ J5 \; u, J
[3 k$ ~6 {3 j9 S2 [7 }/ h- S
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))' T* v4 H! A6 o& o! Y( [
]
( J+ z/ Q6 E( v6 c]
0 @6 J. I8 @. i. Y' Clet j 0* [6 u$ @3 Z! M4 w7 u6 h; ~ t G6 Q
let note 0
" g1 s5 P) a" F0 e7 Z$ F' e* Zwhile[ j < people]* c @% j. g1 w# W( I6 f' y) g/ X
[# R2 @ e, `* T! Q; U
if( length (item i6 a2 N2 @* J' ^% Z; P$ K) p
[trade-record-all] of customer) > 3 )
% P+ z% j0 _3 m4 ^[
3 D( T$ o4 {$ p% H! lifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)2 D: j0 p- }" }+ n
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 Q8 E) _' D" T0 i2 P: l0 B3 E3 c, K
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
: M. e6 P1 o0 @]! E% j3 \" g' m5 [( [0 c5 R
]9 ?0 K8 j$ a8 h* f
set global-proportion note0 i* L* J# G3 |/ D
]
& ~/ q ?/ `- N; ?- R3 _end
8 p- x! g& S4 k* E, v A7 X( S! W! H
% w5 b+ e9 C& H% cto do-trade
& m! Q0 X9 t8 O3 z& T;;这个过程实际上是给双方作出评价的过程
$ s8 v+ {: u9 A5 k6 Y; Sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
/ H5 d9 I4 v! |8 e; Q& q/ e/ Iset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价' v j# @0 r* \$ E
set trade-record-current lput(timer) trade-record-current5 Z8 P, F* H1 L& s% p9 |
;;评价时间
- [! l' ^% L6 T" Dask myself [3 }0 O: q4 M# k; @' P
update-local-reputation
4 ~; I: ^/ G4 x( w+ F( r. dset trade-record-current lput([local-reputation] of myself) trade-record-current J; C6 j9 X h. M4 ^
]
% ^) M7 m8 l; ?set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: v9 `- E! A0 a6 R: a
;;将此次交易的记录加入到trade-record-one中 l. F+ n2 G) U+ A6 K# m
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
; H* L5 _6 X( f6 A& B' Elet note (item 2 trade-record-current )5 _, E, ?9 y+ j# H( c6 @
set trade-record-current4 p+ N1 i" }- }7 K ^$ v1 h$ b* @
(replace-item 2 trade-record-current (item 3 trade-record-current)), j7 w K6 N/ h% L5 _9 I
set trade-record-current$ P3 J/ H2 K$ {8 X: i; }
(replace-item 3 trade-record-current note)
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. T# z+ {$ G: {4 e' `/ }
C, t3 f8 U0 r( }: I' qask customer [
/ x8 n2 i% A" D2 P6 Vupdate-local-reputation& J% a7 a% S3 z7 g" u3 k; ^+ V
set trade-record-current
" p: w: e$ s' o7 H(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
! K0 H; }/ g. c. S1 a2 u$ d]
) j, j% O/ q; [; K3 n2 L7 f
. X e) n: r% \+ R0 |1 B, \
; k W. O* F( m+ o2 F0 A' pset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer/ X7 F' M) R& ]6 \& o; {6 C
) \/ z+ x" l5 A2 R4 B) X7 |1 C- fset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
; v9 B- W( Z, ]2 O# q6 Q;;将此次交易的记录加入到customer的trade-record-all中
+ N# O5 q8 t; {- W2 t7 s0 wend
( n# Y* U7 F9 d0 @7 Q8 Q+ z! S8 E. Z9 m) N6 s& U- Y
to update-local-reputation9 W- R9 _, F/ x
set [trade-record-one-len] of myself length [trade-record-one] of myself' p, G* f `+ m# I8 f" ~' k
$ l6 K' A! l& u) r
7 X P" ~0 `( h; \4 G) i;;if [trade-record-one-len] of myself > 3
$ e0 m, F# z+ j. J# wupdate-neighbor-total: `( ] P! e" d4 k
;;更新邻居节点的数目,在此进行
5 O5 P, g" y( A& Elet i 3# `5 C$ P# N* m4 F" X. u
let sum-time 0( K* P4 z1 d- ~
while[i < [trade-record-one-len] of myself]
5 q5 T/ m2 o& b& k' g[
$ [% W' [2 a/ Y6 Vset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), ~) a1 F3 G- X9 s- c
set i
5 s* [! ?) K" N! N6 ]5 K+ W( i + 1)/ p' P% H5 v {3 A/ K$ K
]2 L; I5 @( k1 Y, D* U+ o
let j 3# o$ _; i1 o0 T5 B* y
let sum-money 08 O! Z& k5 \, Q" w3 A
while[j < [trade-record-one-len] of myself]
8 |8 A3 E2 G( O- `[
! `: }! `* C5 {1 S0 O1 {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)4 N t2 ^3 w& h" t9 F
set j1 ^, {2 K8 ?9 e4 _1 Q6 I! z
( j + 1)
: m- Z) T) m& s/ i) `]! h: L( v; k9 R% W
let k 3
b/ E+ |. t k9 H7 ?) w& ?7 i3 jlet power 0
4 r! L+ X |6 N0 @let local 0
/ N% p! H! g4 ]1 F1 Gwhile [k <[trade-record-one-len] of myself]- Z) J k! P; F) w; q
[% M$ j& _+ D+ L! 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)
0 n! o) e/ O, Z( rset k (k + 1)
7 K" S- N; p1 P; u: _' `1 y( H]
$ ^% ]1 {' h' r% K2 ]$ }; yset [local-reputation] of myself (local)% Y8 s8 ?3 B/ ?% L, z" y: O
end
4 j$ p/ |& t: O0 t
5 k! m& G- k. \8 r+ y, Dto update-neighbor-total5 m. t1 K. e; G( a$ n) e7 q% W
$ f7 ?$ `2 M z0 W6 ?. L
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
5 d% h2 X4 ^* p, f3 w# O/ @2 A+ T% H: M" k+ s- j: e& B
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end
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to update-credibility-ijl
2 b# m4 }- o; ]
4 n; f$ m4 s/ G2 W) l. f% u0 W;;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。
2 {3 f) \) f2 s, h1 olet l 0
0 C( h/ i( F- Q( Hwhile[ l < people ]
0 I* ]+ f2 `: k2 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
3 f$ C5 H5 J$ ?/ K[+ U7 q" G2 x( U2 G1 _ u; ]
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)/ D$ y( x& Y% P, I( Q7 e( b% \5 ^
if (trade-record-one-j-l-len > 3): z* X5 a0 \2 C+ h# Y; l
[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-one2 g, |! [: Y7 J( W c
let i 3
8 u. G" G5 [+ w$ m& Alet sum-time 0! j6 e/ f+ B( c2 y4 t7 i
while[i < trade-record-one-len]* _- ?! Z; G; M& h
[( n+ U4 @7 _0 T- d8 R( s4 i$ r
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )) t7 v" z* L9 z W- _' u0 D) _
set i
! I1 f7 g* }0 j* M* C _( i + 1)
" ?+ T5 m \5 O7 i: n# K]
: D+ [5 L1 {" ulet credibility-i-j-l 08 z& L' }% l7 J/ i: w" [$ H
;;i评价(j对jl的评价)4 @* i6 C5 j# T4 @$ l
let j 3
o4 l- c. r3 M+ p' ]let k 4( I3 \% c5 k" z1 G1 w
while[j < trade-record-one-len]
. g' F& I4 o. ~$ }# i0 q- I[0 |1 C4 }8 ^, b3 N; H
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4 u; o. t, ?( G* s& @
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)0 W- |9 q! V6 ?. G/ x
set j% |; t7 R7 o7 }2 X5 C) Y# ?
( j + 1)1 F3 {3 Y7 V1 E) f5 B/ l1 p& @- P
]. z8 f9 b% i9 _# Y
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 ))! w5 G6 F' w7 Y' F" C$ L
{+ y* U1 \7 l8 K
7 D* v' K7 @2 [ Z7 c, {
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
2 j: d" F# w, B- |. m! C;;及时更新i对l的评价质量的评价1 O( ?) \! d1 U# J7 U% z* ]! A
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 O3 F4 u& R) D9 x+ b0 ]set l (l + 1)
8 f" \5 |$ O2 M6 W( m2 u4 u. `/ A]' {- O* }/ y( C" u8 n% }/ S0 r
end4 K7 [4 Z+ h) }4 I* a# k
2 A. @9 y( D; w
to update-credibility-list
9 q# p3 X L) I) Y/ v3 ~. tlet i 0
: ^: G$ I0 V" W* [4 \while[i < people]8 w! x/ w1 c( _! [# U# c
[' f- o8 O* P# J: f& @2 C& @" J1 K
let j 0, X* {, F! Z! g6 e; h6 H4 m( o
let note 0' L. i5 D9 n! ^3 }0 f2 ~
let k 0/ Y& r! [3 Y7 K7 i/ k1 b$ N4 h) Y
;;计作出过评价的邻居节点的数目
. b& U- `6 r' m- j% A" e( R% R/ {while[j < people]
. T' H0 X( a2 {2 E3 A1 f8 s8 a$ g[
3 Z) n/ |8 H+ ^5 Z. F& h7 Bif (item j( [credibility] of turtle (i + 1)) != -1)0 I# Q# e& y8 o5 G, t7 F1 Y* S
;;判断是否给本turtle的评价质量做出过评价的节点
8 ~. e$ c' T: F$ x1 T" T8 @+ w[set note (note + item j ([credibility]of turtle (i + 1)))
9 ?7 Y, {% z3 O/ L- A;;*(exp (-(people - 2)))/(people - 2))]
F) w0 w+ A* Z# q u% T5 rset k (k + 1)
7 U0 y: C2 q5 ]- d0 @$ ~]& g( [& u% y9 p$ g6 |! F
set j (j + 1)
4 ^0 _0 G& x" g9 m]
4 Q$ O5 M% o$ T; x4 [set note (note *(exp (- (1 / k)))/ k)
$ s2 E5 S4 `7 W- J; k9 A' lset credibility-list (replace-item i credibility-list note)/ l8 c( y0 l" x2 L
set i (i + 1), w- m W3 w9 o+ S! K1 g7 E7 y
]- I% W2 P; |7 A" D$ B+ d! J6 ^
end
) c* Y/ R! H" e3 K# p2 U2 G" i& S9 W$ J9 ~
to update-global-reputation-list8 a# Z o6 q6 m+ Z
let j 0
9 v9 \8 j$ S; [" Awhile[j < people]
R; Y# u; S- z) z; s; M+ f) b[
+ |+ N- R3 H2 _, W7 [( ]0 zlet new 06 q9 }4 R3 E0 Y8 A$ ^
;;暂存新的一个全局声誉, [6 a, ~, ^! s7 Z
let i 0
w. j8 e( M8 j# @- M Olet sum-money 0. o/ T3 x8 F7 F3 V( z7 Z
let credibility-money 0' ~* q- [$ e+ x2 b" _+ K3 R" E
while [i < people]2 O: \( V- F* R( L
[( K3 N2 j3 z2 H4 g
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
$ a' }: L7 S9 B" @& Hset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))" s8 [4 n1 D/ t' ~
set i (i + 1)
$ n7 z* Z; Y% C6 a& l$ S$ u( |( I]7 q/ x/ m. k/ x
let k 0* A% k+ A0 X. m3 R% V
let new1 0
z) w6 m. K& A5 qwhile [k < people] K( k: m M2 L; g( [7 u
[
: M* v2 M3 a/ C2 X5 J- G9 Aset 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 E& o0 X$ ~6 y; T6 M, g6 a7 N4 E. Wset k (k + 1)8 Y1 _7 d& Z% C
]
- Y4 I& j, h& t6 R# e8 Pset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) . W8 ?! x' d9 u
set global-reputation-list (replace-item j global-reputation-list new)1 Q0 P! f# h+ G. m3 H, a
set j (j + 1)
2 Z! M: I, j3 K# ^]0 ]0 j" ~0 t9 P) E' ]5 F2 s
end
1 u; w' P: h/ t% q
) c( H+ z; r) m' a5 \: Y' \4 j5 l) w
/ N4 ~. s7 O" K3 n1 _to get-color
# [4 f; `, T5 v/ O4 }/ g2 l) U9 P
set color blue
" C/ H0 ^: u' y/ }9 b6 jend
0 H; L5 c% Z8 P Q" @6 \8 r3 k4 y8 K- Y. I* w _
to poll-class6 q1 o$ [2 A+ l! v0 J
end( W! b( n6 U5 ?+ ^: C
" l) o$ R# b- z; H
to setup-plot1 |- y7 W, \8 h1 F* f6 h$ D
0 \ ~+ }& K" |0 wset-current-plot "Trends-of-Local-reputation"
6 _1 t4 `3 E( v
2 e5 u) m* U% ~% W; H+ A- Q7 hset-plot-x-range 0 xmax
" |1 ?+ X- v, d7 Y6 J! e7 O1 e* @# x0 e0 [* ]$ J6 a, \( F3 z
set-plot-y-range 0.0 ymax' Z* c3 ]2 d# J9 h* f6 s
end6 k' b# |% I9 P X1 _
7 a E7 r+ D0 X/ r% A) rto setup-plot20 F; u/ r9 p' K3 e, K
9 f$ W8 V' G6 q7 a; m, n5 Uset-current-plot "Trends-of-global-reputation"
: O9 `! x' B- s* J6 b( E: X1 {! [# ]9 o3 b( r }( }" N$ p
set-plot-x-range 0 xmax# ]+ [$ q! z( {+ C# Y: e+ K
t& r: s" {& q; p; Aset-plot-y-range 0.0 ymax* M5 Z9 h; n) d/ t/ G, V3 j; b' R6 i9 d
end: j$ I- N( W/ g- |, h3 |# u
( _5 Z3 B4 v) O I, Z4 v0 L
to setup-plot37 `7 f" o' K5 a# h1 `" }" I7 @
# }- N6 A8 ~6 ?/ B' N5 \- t/ @set-current-plot "Trends-of-credibility"5 n3 N& J9 r5 \9 l' n* L& Y8 ~
, X0 B( x% {, k) [, Eset-plot-x-range 0 xmax0 Q9 |0 S6 q8 G- i7 U
) y5 D; f. F5 b, r, v
set-plot-y-range 0.0 ymax
0 m5 A8 m8 U- L7 z: F( |9 Yend
& F/ q" h1 G- y
/ b8 C3 W# _8 I9 R$ Eto do-plots! y' B9 l& ~ r1 X5 {
set-current-plot "Trends-of-Local-reputation") ?2 n0 ]% U% d1 }
set-current-plot-pen "Honest service"1 t% y5 T i: H3 |5 G! s& ~
end
1 S1 q; c% z) C$ p2 I1 v
0 h! G' _* {: T, y4 @7 e8 z9 u6 Z[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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