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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3 z* b- Y! L3 x0 N' q" A7 ?0 r
globals[& o& m: Y1 Q* C5 K1 j' w
xmax) `% w" k3 P' S3 i% P5 P
ymax
% ]- Y# f, M5 I5 Z3 q7 |5 Uglobal-reputation-list- U2 x; z' y+ ]
# w) z/ U+ e* i- `& Q4 q;;每一个turtle的全局声誉都存在此LIST中. b" x5 j% \% ?
credibility-list1 X3 I# F, h% O( B, G0 k
;;每一个turtle的评价可信度6 v! _5 D2 W. q- B
honest-service1 n0 F P4 N" w7 f
unhonest-service
$ J4 Z9 m$ M' ?5 \; |: L5 woscillation5 l; C1 i& f! a6 e! j( q
rand-dynamic
; `- |& q& W7 u# {9 W4 e]. v- D) c5 ?$ c# m( `( p; d5 |& R
4 T3 N. i8 V. S& G2 q
turtles-own[
3 i {" m- p( [6 J* etrade-record-all0 ?' _2 k! {5 |+ o$ c) a
;;a list of lists,由trade-record-one组成
9 }& ` j1 s2 k) \2 p9 ]3 rtrade-record-one# y( o# P7 g) ], p; e2 Z d: Z
;;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 r7 ^$ s( j# R
; R+ ]! C0 S( v;;[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]]3 K5 t! D/ J* N6 c% p$ I4 f0 t4 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], o% {- j. z% f' F2 {/ F$ X
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list5 E9 E8 W3 x; J$ V6 U
neighbor-total3 k) g4 ^2 \2 B& Q M
;;记录该turtle的邻居节点的数目
/ ~6 v4 K# L5 Q0 h( v( x& }trade-time
2 A; J; u u. o7 M;;当前发生交易的turtle的交易时间; H% _3 X9 K- x# a' p! [9 G
appraise-give( V8 H. R8 E9 Q1 A* i" p
;;当前发生交易时给出的评价! B* ]* i/ A, r3 U/ z& A
appraise-receive5 c6 O- ?9 Y( H2 d8 d
;;当前发生交易时收到的评价
" a# _0 z0 m2 Pappraise-time
/ [% ?- ?2 f3 e$ t# ~: `;;当前发生交易时的评价时间% i4 T# z) y% K% g5 Y; E
local-reputation-now;;此次交易后相对于对方turtle的局部声誉7 }6 y% S/ S# ?+ [# W* i e* R
trade-times-total
; d3 s" ^! m+ W& U; v;;与当前turtle的交易总次数7 z. v6 d) j* N n! X
trade-money-total$ n& v8 b8 H C9 T$ ~
;;与当前turtle的交易总金额
+ k: X, M% i* D7 L3 D! v5 h+ Dlocal-reputation
3 ^3 N u) T% z, dglobal-reputation: q, I) P, f* K
credibility7 d7 v6 d! n& E1 E
;;评价可信度,每次交易后都需要更新& t$ {0 C, `/ f% D6 u. x8 Z. L
credibility-all
) z% L! S1 O* E, e;;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
7 I- _+ Z& }) h' Z- W/ G+ X9 g
! V# v0 Q" k+ H$ w/ t& t;;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- o# h; S. g9 E
credibility-one
- ^7 y, x' ^/ L, d;;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
, W. D( k2 B% Q7 Q- S7 D) l& Jglobal-proportion
9 f- ^- X7 J1 f/ D3 Ncustomer$ m: e1 j6 i8 T+ m& k" |- l1 o' R
customer-no
$ l ?; C) w9 o3 W2 Z/ _trust-ok& Y4 M$ u0 o+ E6 D, w5 m
trade-record-one-len;;trade-record-one的长度
- E9 a! c5 U) _5 j]* N- ^9 V* `7 z9 c/ q8 e% K) V
; o6 _, M! P( `8 y- R5 Y;;setup procedure
6 g' J( V$ @" z: ~. s% z8 p) p! W- |+ a
to setup) i9 q& \8 k6 T% a0 ~
5 O. W) N) y( Vca
$ Y& N9 b" ]1 H+ d) n7 ?1 ^( j& M9 b6 o, ?5 y
initialize-settings' S( Y/ ]! Y! b! o8 @ z' L/ _
* E% V" e" f! N) C/ A" a( \* ^crt people [setup-turtles]7 F: Y" C/ l7 E$ v: A8 n6 o
2 B. D# _9 b* x% D% K5 t& b9 h2 I
reset-timer
! t) e. Y! T+ s/ v/ C( _
- b- |$ W; Z/ U$ f2 ]poll-class) X3 n9 `9 D1 |4 l. v4 c% i
0 m9 K0 B4 b0 W' B F
setup-plots
' }6 D3 J1 g; E4 k; a. }( X, H8 Z0 q% J- Y% i, v2 \8 L
do-plots
. B$ y1 V6 ?8 z' U! uend
# _ e$ G" R7 a* d$ A U. X% m" f# V
% n E& m) d% b( M: \* M+ J( [. v5 Nto initialize-settings5 t0 t! D' |" ?3 H
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set global-reputation-list []/ Y: I( S9 \" q6 e) P3 d
- `0 K7 u2 v* Z% F, O! ]1 F" G
set credibility-list n-values people [0.5]
, Q7 ^ y# j; [
% g! l& S, P! X' D: `" X' Wset honest-service 0! T7 @! Z. P7 g9 x
0 W' X+ q! j$ r3 F$ ?set unhonest-service 0! O, J2 b$ n% ?7 w$ k. l
1 n( {. }. V, s/ T0 m' aset oscillation 0
$ |, r- H, P* |4 v1 i$ }+ e; v5 D9 h3 q$ @, w6 i5 D( [1 a
set rand-dynamic 0' }; G& B. f! F0 ]# Q% Y- M
end
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to setup-turtles
0 u& [8 x6 H" N G( [set shape "person"
' D, A! h2 F0 e4 rsetxy random-xcor random-ycor7 j$ a# B6 ?. Y0 q* R1 O
set trade-record-one []
# Q) N2 ^4 k+ n+ Z
4 z" j: {9 Q$ E- H9 M. ~1 i6 X0 r' sset trade-record-all n-values people [(list (? + 1) 0 0)]
* c- Y9 H+ d1 ]& Z7 A
6 H) C! @% Z! K9 B9 Z/ _set trade-record-current []
2 b l$ c% A5 k3 {+ tset credibility-receive []: F/ N0 z/ F' k2 ?3 R
set local-reputation 0.5' V, A" f% `: R/ p
set neighbor-total 0
0 L5 z9 Z. {! [7 E3 Hset trade-times-total 0 j I1 [, Z+ ?% U( b3 k% I! ]- Y
set trade-money-total 07 z, x( w0 Q+ G2 E* _( ]
set customer nobody, W5 B% W! t$ _7 j# q, {
set credibility-all n-values people [creat-credibility]. A) G) B; H2 w3 X9 p
set credibility n-values people [-1]: t- M6 R5 T# C6 L
get-color
5 H& O3 S2 @- k8 [. v2 p5 `) a: O4 D2 B: d9 Z7 h$ {
end a! ]% `& D' j" X- I/ r" M+ o$ @
7 |- o! O: J& j1 {to-report creat-credibility, o, e2 T5 r' |
report n-values people [0.5]% f0 F3 E" V3 F. z7 {& E
end' S8 b5 p x# R/ h
: ~) w. G" X) Y( Y3 `0 z) L' _to setup-plots
' A" o1 B n1 `) H( ]. ]* M0 C4 z: M+ O0 q8 y# W
set xmax 30
9 y7 \( @$ r, T, B$ v. _1 l W' \- H% I# {3 R, V
set ymax 1.0
1 q/ z* u, ]# a3 s [: D
3 r7 I4 H1 ~" u7 R( b8 b E0 w# aclear-all-plots
6 {" U) T$ y8 @
! j$ x2 L* x$ X8 T {7 v# P6 A' Bsetup-plot1% c4 v- e- G3 f1 D$ Y6 e/ E5 \
; a( w; R# h5 x1 |& K
setup-plot20 g- ^3 g: \! ?/ G
/ ?$ P! W, p3 J/ g; m- U, X, U# W( Fsetup-plot35 W) p6 q0 _7 P' S) ^: o- Z! [
end
1 T+ L: ]# p% X
. J! ~* d! G( `$ H7 O9 K! P;;run time procedures# F5 M6 A' f' ]* \+ m( }
. B$ ~( D& f/ z9 S+ uto go2 ]$ R5 o: y4 Z T# h( d- @
8 w+ x8 ~" K( b! z2 r" G! ~. aask turtles [do-business]
% n1 J! `( a, J. a4 h6 v3 [/ aend! O4 s1 u; K# R
( O8 l. P1 Z" x$ W% cto do-business ) `4 \# T+ [2 d% h; G
2 {6 c" s3 J+ F9 G/ ?3 M5 z5 m* N
7 v" I1 B3 k. P. A8 ort random 360
9 ~/ z1 e" V1 n L0 @% n$ i8 Z8 v4 ]' N2 F y" {
fd 1
# t" v" x1 o! J( |3 N
: ?! c! X5 {5 ~' K' O4 W# d9 p1 tifelse(other turtles-here != nobody)[' ?5 \3 e9 ], ^, x* K7 _, ? G( b
1 c' @, k5 L- P- D9 l/ K( b
set customer one-of other turtles-here
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;; set [customer] of customer myself, e; ~- a1 g/ T. Z9 }% V4 ^
( L2 H+ ?3 m" H6 x$ X; a+ i6 ~ b
set [trade-record-one] of self item (([who] of customer) - 1)# U' l6 T/ l4 M8 W, v+ C
[trade-record-all]of self/ L- i$ c3 p! U {- U
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self% e' S3 Q' {) L9 J5 s6 h4 E) ^
4 g& n7 O9 r( j4 o' X7 b- B
set [trade-record-one] of customer item (([who] of self) - 1)4 b7 v4 s. x. u. p6 y2 S1 b8 J4 @9 [
[trade-record-all]of customer
9 {. j4 _1 w) h1 O/ o* R) Z+ h" p4 s4 P/ Y- X, U3 A
set [trade-record-one-len] of self length [trade-record-one] of self% v, e$ c6 b9 g2 _) W
4 q& A% ~' w) y o4 U4 Eset trade-record-current( list (timer) (random money-upper-limit))
: p( ` D& P3 b7 D8 m2 d3 \; j( x# s& T$ a2 Q+ H
ask self [do-trust]
1 N. }5 s* j( P( a0 p* v2 a;;先求i对j的信任度& m' j; d/ L* D0 u: j
' V" }( O( t# C1 t& | E& e/ Q& x7 Y
if ([trust-ok] of self)9 l% t0 m. }* ^3 Y
;;根据i对j的信任度来决定是否与j进行交易[
k* F* O, ]5 ?/ _! }ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
$ v" @9 P2 z! m) _! K2 |0 C, {( X( e4 b% K& d
[
5 s* z/ k3 l3 r& w) J: S7 a4 }
1 s6 N0 _3 h. odo-trade% ?0 Q0 p3 i$ Z8 N: }. n
. t7 \& N: P7 ~: p; b P! {3 Lupdate-credibility-ijl9 X9 h) V% ]' W0 ^% K
0 v5 ^; n, D. Tupdate-credibility-list
- B+ [" {4 ^+ D+ m! x; X" i5 P6 b4 f
, @# J" J% U6 d) e+ B: L
update-global-reputation-list
: y5 t! g) T: y' Y9 u0 N2 L% \/ z/ r0 w# S8 [, C2 d3 E
poll-class
- V: o4 Z: N! h- B8 @9 Q2 t' o8 |5 w& V) @
get-color
/ N' d" Q& }' x- D8 @7 W8 x1 L- n3 ?: w; _
]]
+ D6 U3 y. x! L8 Z' F/ w9 D* p" v) H+ i8 s; a& b
;;如果所得的信任度满足条件,则进行交易
5 W, m6 T- B1 d& A" i$ p: c( r: W, P2 ~: w( W
[
( ^* Y% H; d6 _; T2 [
- \$ l3 W. q% r5 g4 y# q1 |6 ?rt random 360
2 o& A2 M5 v9 |8 d8 e; u' v, _6 ^; g; @: M! K: v- Q# ?
fd 1/ }: h c o8 X% c# E
9 a4 G7 H3 \, O/ O3 D; t/ Z& Y, G% t]" V' |9 |# R+ h' T6 S0 `' s
% \* _% P- k B$ ^
end
9 n7 j9 Q% ]3 ^. U0 b% Z; B" @# v; |. k" ^, R6 ^) x9 r E
to do-trust , D6 Q* M/ i! U \
set trust-ok False1 o! W: n, p! j- B7 ]4 A
. L% C0 q% V% e: P+ j
5 R% t) V+ J9 G. Hlet max-trade-times 0
/ Y X4 l/ {9 pforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( R/ w% O" E& u0 f6 q3 I, h$ E
let max-trade-money 0( G* ^/ l5 h% p' n/ l: D$ Q
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]+ e; N1 g7 ^; A+ W$ T W
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))% B& `1 o$ o3 P% P4 q% L
: q3 [4 c. l, S) C) i, A3 ]9 V. w. w8 i
get-global-proportion
7 v H# `3 [+ ^5 z" Y# }let trust-value
% n: Q2 T+ v' v2 L Elocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
1 N$ W. q/ y0 r; Z% @6 l, sif(trust-value > trade-trust-value)
, X& h6 u, v' U[set trust-ok true]) p9 m3 u+ F2 |9 K& b
end
+ l& u. S9 I- M+ I* v1 G3 Q; `" c. X7 [. U* F# H- I% k: [% G
to get-global-proportion
2 I8 A% V/ H+ s3 F0 U! Kifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 P7 ]7 C! V+ B7 n1 W[set global-proportion 0]3 C, v9 r8 S- ?: u0 w9 C/ q
[let i 0) r4 \( B: H. E! w
let sum-money 0
& l2 }6 u' o g$ c5 dwhile[ i < people]
) S2 b5 i# b2 Y2 g7 c9 d- o[; C l4 L8 x r
if( length (item i: l ~/ p! M+ z6 r' x* s/ |
[trade-record-all] of customer) > 3 )
2 f# A9 S f: d/ F6 b/ T[& S1 o% M& k% Y5 Z
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 k3 O0 E( I' d7 Y" K) k# O, U
]
5 _8 t3 K: L# |9 i6 G]; j9 o9 t2 b3 X0 V E" n
let j 0
, q% @7 X# y/ w% blet note 0
8 j% M# z/ S) H) t! d# Ywhile[ j < people]
# X% x% n" [( Q2 `) o. E3 t' s. E[
$ W* @1 A* r) p6 Q3 P0 G5 ]if( length (item i3 i) s& g7 A$ n! p
[trade-record-all] of customer) > 3 ) G6 ]8 m" D( g8 \0 [+ G/ F
[' o+ G7 n2 Z, w
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)6 K; k' |8 l( H2 B4 k1 @& b
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]9 V, _* x( d) `! ?/ p
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
" z! I7 ?- Q6 ` ?, P* N- Z$ ]2 K]& |* y/ {6 {) u& U3 l( v2 x
]" ]+ S; g% n/ ?% H; ^# d$ i/ C
set global-proportion note8 N3 H4 k) ^8 \) p) g- G- y, v
]
5 L( \/ R/ u6 u9 W: [' Qend
, C/ D5 R# x; K, Y X! U: s: R
" T8 r B6 s1 v* D. N; xto do-trade
" [$ G8 P& k, l a7 o;;这个过程实际上是给双方作出评价的过程! U" r4 b$ }. v' ^8 g7 _0 [0 S( O
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
% R4 E* M: P, G1 y! G9 wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ P1 a. x# p9 }: V# o5 zset trade-record-current lput(timer) trade-record-current/ \( g1 ^( h5 p
;;评价时间
. }! m; g. q* y+ n& y; _1 Jask myself [0 i( \' m8 I. _; o7 D& Q
update-local-reputation D8 o9 B3 h8 Q% ~3 c4 W% @ `2 E
set trade-record-current lput([local-reputation] of myself) trade-record-current
" `6 \1 i/ r0 N7 f+ v/ u+ P], c4 `- j* C; b. \: @/ V- f* C
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself/ r2 {# A! F; y
;;将此次交易的记录加入到trade-record-one中
) e: x& \$ Q2 i# @# O! G7 lset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
s: [' E6 s$ R+ \let note (item 2 trade-record-current )
+ ?3 V/ s" w5 R tset trade-record-current
% W! B E4 C9 I9 A(replace-item 2 trade-record-current (item 3 trade-record-current))
8 l% X/ \8 J7 Q9 Wset trade-record-current; n0 i4 R7 {- ~ @
(replace-item 3 trade-record-current note)
7 x V0 d5 V" F
% C, Z# Z. F" {: D' {9 e; Z4 v2 F. j/ q7 K, o
ask customer [; w1 T8 ~5 [/ u0 C, D
update-local-reputation( C1 _0 s% Y! N/ V9 E
set trade-record-current( q8 K/ y& J3 N
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
6 X. y3 j$ a, I) K6 W! m]
( _! u& m( r( z: b' Z1 P1 U w% E( o8 X
j) B2 P& q: L- c5 f
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer6 p( L& c L' [% H/ k
% m" L, x6 l6 _! \$ bset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
: z) T! D) z# j;;将此次交易的记录加入到customer的trade-record-all中6 s' ]* q" |. _& @ w% K" A
end/ C" \' t6 D" P) m# j# Y
4 m+ v, u/ L! }% |2 L' w
to update-local-reputation) F) l6 l! H( A7 F
set [trade-record-one-len] of myself length [trade-record-one] of myself( v7 z& @4 J b' Y5 G+ z
5 m Q/ M3 w: M6 N
8 H' g" H0 t# o, d+ d/ b;;if [trade-record-one-len] of myself > 3
. M) e6 H( ]9 G: q. Mupdate-neighbor-total
) z+ i. T8 V, d5 i+ j" v' a! Z;;更新邻居节点的数目,在此进行, d: h0 s* s1 v3 X+ n: T$ e/ {6 A
let i 3
- X% L4 F G6 k) @$ L& glet sum-time 0
9 X* R& J6 }0 t# u7 `while[i < [trade-record-one-len] of myself]
3 v; O" u, I( t _* m[
& V0 ?! O1 ?3 _set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )% A7 o* _8 o6 @- ]
set i
7 E, W, H6 h# t5 R4 @( i + 1)
% f7 Y1 \1 e8 N) u]6 I4 B' i8 c/ |3 h
let j 3
) }1 o) ^( }5 o3 ^: h7 Q9 e% g: plet sum-money 03 |* G- a8 r3 S6 u
while[j < [trade-record-one-len] of myself]" c' }# s9 d* ^1 W
[" p: V2 V s+ Q- S- m0 L, k1 Q
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 S+ m/ r9 F& }. Vset j$ K" }9 G* @" h. J; a+ {7 \
( j + 1)
- M+ K) A- H+ @9 o, B$ l]
" Q7 f( J2 I/ `. T# R# Vlet k 3
* z# @1 i: [% B5 e5 b& Blet power 0
+ S) d/ c" Z: a0 {* plet local 0. v1 `) I. A$ X6 B$ y* M: W! m0 ~
while [k <[trade-record-one-len] of myself]: X: h1 }7 C2 a3 t" U! _5 Q
[ @9 h* V) A9 S! F
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)
% l; u" P7 z7 T/ X s. [4 Z! Iset k (k + 1)% A# n% R* d3 n5 v# T
]
3 Y0 V' |7 W1 C9 c# x, sset [local-reputation] of myself (local)
* R M Q* i% a: k. S% d4 fend: |5 |" N( j. y( ^
: A n" f; }- q+ @' bto update-neighbor-total
2 _! @$ R0 R; a
4 g: Z# A. O& H* ~+ j: [8 w3 xif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]4 ]' ]3 b) ~- l. X0 O
" j8 G6 f+ i; m9 ?" a! f" v
+ i, q& _8 Z& p4 d5 I# {5 mend
( |' S4 y1 G& f1 \3 \* ?
7 P* O% R& }8 ]+ Fto update-credibility-ijl 4 `3 x- R+ r, V3 C
: @% x: O: J$ x6 P4 M;;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。/ _7 d. w9 N3 w1 K
let l 0
+ b" y; y5 k$ M) w5 i0 mwhile[ l < people ]2 u" a' [& s- 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8 P, y5 G& d8 f( _
[
/ o& u3 }, |5 R4 e$ J$ A( ^let trade-record-one-j-l-len length item l ([trade-record-all] of customer)% }: T: E. t! A# A1 e- B* A! r5 m' T
if (trade-record-one-j-l-len > 3)
; V! @' B, m" p, [+ l1 Z+ W5 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
" O$ B% l/ s* \0 C6 wlet i 3
8 m5 t( H1 g3 L/ d. i/ Blet sum-time 09 j/ c1 p- i" E. ?! C( t2 r
while[i < trade-record-one-len]* [6 g4 s4 T* n
[
4 x1 s" b& O1 I" @# v9 j% S3 Zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )3 k8 M8 O% h3 H
set i% f' d* Q5 C$ X% ^" E+ R. x: C
( i + 1)
4 m2 W- w8 O# i1 o+ {]& f% v, L9 z5 C, U# W1 y( ^5 Q
let credibility-i-j-l 0. H" \6 d+ h5 ^4 \, F; U
;;i评价(j对jl的评价)$ ]- w& l% z! _/ X" d
let j 3
( H, C1 @* S; ^3 r0 {let k 4
$ f, t9 T) \$ R9 M* @* twhile[j < trade-record-one-len]
5 F+ \6 @8 e, ?. w" r5 `[
2 |) W; |8 h i6 l! xwhile [((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
1 u1 `. e3 I, T+ y( [8 i" y4 Zset 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)
, Z) `7 s2 |% ]3 r% u7 a& y9 yset j
+ k, e1 ^- L; L1 Q5 \( j + 1)
3 w* P4 P+ j" w; @. b! B, }]7 v2 }& W, I I! a- W
set [credibility-all] of turtle l (replace-item ([who] of myself - 1)([credibility-all] of turtle l)(replace-item ([who] of customer - 1) (item ([who] of myself - 1) [credibility-all] of turtle l) credibility-i-j-l ))
2 S/ O7 j* B6 i
5 Q0 A, l$ R$ I, \8 @9 S- k# Q0 a
7 o' N7 }7 s7 N3 y( Y+ Qlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
4 c* ]( n' N. w! S;;及时更新i对l的评价质量的评价" A3 u4 O1 D4 t
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
* J; E8 O8 N9 v; ]1 Dset l (l + 1)
) P& i. U9 `# q! {* m4 ?( T]4 o a" w+ ?2 O4 W' q* w
end& [) Y& o1 j9 P8 d
; @+ Z' i( U, l/ _to update-credibility-list _! N& v+ o- i
let i 0$ F3 [# `4 N! w5 v# u
while[i < people]
% g& B& g- a3 w; z7 O$ u w[
W- L. I; A* o( C% N' Vlet j 08 o5 @' j! V; } v) S
let note 0# k4 J4 Y0 ]! Y! F
let k 07 l) H: z- ~6 K$ q
;;计作出过评价的邻居节点的数目) w( y' q6 m* j% g! v& @6 P/ u
while[j < people]
, x( n4 g) V- r2 `$ I5 g; ]8 K[
; b0 t3 C$ G# m! _3 ^; @0 Dif (item j( [credibility] of turtle (i + 1)) != -1)
3 C, ^, b. j% _- L+ E" Z;;判断是否给本turtle的评价质量做出过评价的节点# c- A/ \5 M; O @/ {; e
[set note (note + item j ([credibility]of turtle (i + 1)))
0 M; }, G+ S0 C$ b7 w;;*(exp (-(people - 2)))/(people - 2))]
1 e) `- q9 ?# g2 R) Xset k (k + 1)
+ c# {( k- Q \- v7 T$ o% v3 ?/ \8 X3 L]0 {2 D- o: q# v* B3 V6 k
set j (j + 1)
1 t5 k1 u9 {! D3 v$ \! H]
" {& I6 [ ?& I2 N( S4 Vset note (note *(exp (- (1 / k)))/ k)
4 c( t) z( b# D6 J T, Aset credibility-list (replace-item i credibility-list note)
4 o/ Z6 P( [3 _set i (i + 1)1 o0 B& G+ O# C9 T q
]6 N% v! r8 M9 N" \7 b4 v/ U
end
6 p+ {6 T i, v: J! Q' z! P* o, q0 u! g6 @5 V+ l
to update-global-reputation-list
) H H& f- p3 g2 X$ b0 dlet j 0) g3 n/ p9 [9 K8 |
while[j < people]
5 F& h* Q% }9 M[# Q6 G r4 i) K$ S
let new 0
! ?4 L+ P) _( N# |: |/ n8 H;;暂存新的一个全局声誉
# a% M$ {/ X# \) t" u0 [! hlet i 02 Z v1 x, S9 B8 ^" r
let sum-money 0
5 C8 ?% W$ d$ J; }& k$ @9 ]let credibility-money 0
) T# R4 l N9 p( t" Uwhile [i < people]* F2 U% {; J' D+ Q* A3 _
[
0 A; u P1 X$ P3 ^% b' bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ o0 k: ~4 l: U5 S' gset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
: b* D+ L! m" ? |0 Cset i (i + 1)1 F' x5 i# Z+ b# j. R& v4 C! P) A
]
9 O$ R9 [" o9 P" j+ y* dlet k 0
" G" I' \* y% ^4 V6 v, w9 | e' jlet new1 0
& y. D9 }$ `( T6 k9 Zwhile [k < people]2 k6 d9 A& K O7 K
[
# S/ i x) V* C: U, {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). O0 Q- e$ ?9 j. Y
set k (k + 1)
f" t( v# ^, M]
4 ~2 a% F) {$ T0 i( i& ^set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 S$ V- d7 a, tset global-reputation-list (replace-item j global-reputation-list new)6 e+ g# B8 T& S7 d" `
set j (j + 1)
* [0 ^7 e, D6 q$ X3 I; B, h]
' R4 q1 V% L: p: l! Vend, G+ \8 i: s9 a
+ t# o; c% {3 ?( K+ z7 i
. s" o7 R* g" e8 x5 C; k6 T/ e( I- `3 @9 H1 V. y1 D
to get-color
( N0 }9 H$ y4 c; G; _( D" ~/ K' ` d* D w8 L) r2 W! ?
set color blue n% ^' h% U. A8 ]
end
/ r9 j3 @2 I0 Q& T
# T. N4 y# E+ c0 [1 Eto poll-class
) W3 W+ m0 f) W# d" c( {) Zend* H% C# ~& g3 ] [$ d$ z. x. C& @( _
! `0 X9 @" ?" u' F; ^
to setup-plot1
& J9 s; [7 C# d; G( `4 w: Q( B7 o; f9 d% ^1 P
set-current-plot "Trends-of-Local-reputation"
" N: S/ }& ^+ P
2 o$ p; D. j, k( u( ~set-plot-x-range 0 xmax4 V/ e% x7 w& o J6 p5 `" x
6 ?+ v( C$ Q8 A7 S) B( C
set-plot-y-range 0.0 ymax0 R0 t$ d3 V6 d, { m+ ~8 U
end$ y6 F4 [7 E6 N( ~$ h J7 R! R
% ~8 y- a$ A! x$ c' xto setup-plot2: A4 _! o4 y& E" v$ G Q; ]
$ J5 I9 H- ]$ |set-current-plot "Trends-of-global-reputation"
* C8 x: E0 g* o$ R, T! I3 {
) l2 [, u/ N/ ?& f% w2 C {$ eset-plot-x-range 0 xmax
6 B) c6 ?. m6 F( Q, S" N/ k9 N L4 J! T! y0 G8 [4 [: D! S
set-plot-y-range 0.0 ymax6 J6 M2 W! M3 u. n+ X
end2 E; z/ z7 q! ^! [( g/ ^7 C
; z" M% {) e/ C$ z3 M; kto setup-plot39 z, _4 v m3 p! ^8 `
! m% i( y7 |: b3 T0 H! V5 u1 Sset-current-plot "Trends-of-credibility"8 Z' a+ Z" r) {. ^
! K- J2 j1 `) p' u- ?* [% }
set-plot-x-range 0 xmax
, [( S$ w8 u6 U5 r" y7 ]6 W1 c
( n$ x+ G3 K; Jset-plot-y-range 0.0 ymax
+ i, T: e' S$ V2 uend6 d/ e) e6 L% @! k# `& [. V
" |: |" A9 m9 v* b7 B3 }
to do-plots! o+ K( ^% Y3 }; E- T- s# o% F; ]
set-current-plot "Trends-of-Local-reputation") M$ X) K/ I* H" p
set-current-plot-pen "Honest service"6 l" Q4 j1 ~2 L, y
end
& x; f. B. {1 K0 W% F4 n0 z
$ K# c& t1 Z7 d* j[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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