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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: p" j) k; T9 E* B- f
globals[4 C+ K+ }, o0 ]* g1 o" l/ t1 Z4 G
xmax4 F B) \. }- q1 v
ymax0 @( j) C7 D6 o+ q0 g
global-reputation-list
7 ^' T1 z% S; F8 X7 H% g- z; I! k
+ w7 K7 P9 x1 B, C5 |* v;;每一个turtle的全局声誉都存在此LIST中
3 _) f e% {8 r- O3 ]8 xcredibility-list
/ j" w* ?0 @$ q;;每一个turtle的评价可信度
4 E" S; f: M5 y vhonest-service' u3 Y) R+ U& {3 @4 j# ^3 y+ {
unhonest-service
! ]+ k+ I8 `$ E- q* K1 K9 Ioscillation
" t0 x( D+ y! K6 A8 m5 R' K9 ^rand-dynamic4 Y( { ]; m8 r% k$ F/ L+ t
]
6 u) E! \- z0 L4 R* ?6 e9 D7 \, l1 ]% F
turtles-own[
( K4 y5 x; X/ A' `: ~. m! otrade-record-all8 [6 k1 x4 P9 J u; ~9 V+ T
;;a list of lists,由trade-record-one组成* |1 u% s' g8 ]. O2 \1 S& v
trade-record-one4 C7 z8 I7 F! K5 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) o& ~1 _4 a) q, i
6 Q0 l9 m8 ^9 I4 b+ t& Y4 _
;;[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]]
. A4 J1 j, C6 t& a* s2 Itrade-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]
: Z+ L; D3 e0 u, O* G! d1 K- rcredibility-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/ k8 @& R# D; n) e3 z# [2 n
neighbor-total
# h9 [0 s: h0 h# i+ p& \$ Q1 I;;记录该turtle的邻居节点的数目
/ x8 D. ~& V k! ^( _# g) l) Ktrade-time( V. p0 g8 c. u+ E* ^
;;当前发生交易的turtle的交易时间/ s" h/ c5 B+ H" U: p! m; v
appraise-give# W* q( _- j. B2 I2 v
;;当前发生交易时给出的评价3 b8 W. W. ]2 n1 ?" ?
appraise-receive
6 C) g& V- ~7 }% Y5 f" ]5 B, |;;当前发生交易时收到的评价
3 ~2 G% F/ B$ E' S8 A4 Sappraise-time7 u3 O6 t# v: Y! d( f3 F/ h
;;当前发生交易时的评价时间6 p$ i* D8 j+ `9 R
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
* T3 R1 m) P9 v* otrade-times-total) `% s' S2 Y$ o2 B
;;与当前turtle的交易总次数
1 b. D2 o: {9 D# r5 U- M8 s" `trade-money-total
" ]3 V" P3 M& p0 j: @;;与当前turtle的交易总金额
) }) z; V3 V3 elocal-reputation4 h; D+ j% D' }1 ?; i
global-reputation
/ ^+ c- v4 S( ?) k3 X" ycredibility
$ a0 l9 \9 k' n# q& i5 I" Z$ X;;评价可信度,每次交易后都需要更新) ^- }* U2 @2 ^0 r# n0 [) r* N
credibility-all
- P' x4 v$ p9 b! y8 ]# 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, Q7 @2 h0 A2 B1 V0 a
5 U& s6 `9 W3 k/ G1 Q 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
; k$ `: P2 C4 s* A* Bcredibility-one
2 N; m# F8 _) H \7 v6 n. f;;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/ G% |7 J# M. \! K9 M
global-proportion
6 F A. M; M" W# M3 w, t9 Gcustomer3 j' B) x, f$ D& D0 `* ~
customer-no
0 b5 C: J7 K0 C3 O( w1 Vtrust-ok! I: [4 C1 Q7 `, K8 v6 B( p& c2 v
trade-record-one-len;;trade-record-one的长度
' g5 f# {( x A$ U! v]
4 j5 c# ~, d9 w* V3 W0 U& w8 A V3 T( f. d$ Q# T1 G0 D
;;setup procedure9 F- t! \ E0 {$ F. a
) R- @7 d8 E+ ^( _2 `to setup
! w/ h: b# {' w: y
) V1 [( b$ m8 N3 B( u( ]7 t# z5 b2 ica8 A8 t% F# x! Z6 t U
3 a3 p& E: n7 N, H
initialize-settings- I% w/ v6 u6 J) U/ z
9 {. c0 M* k5 ~/ z9 t
crt people [setup-turtles]6 |: x: U9 q1 }0 m2 B( d
- c1 `8 q' k: F# ?7 S, Ereset-timer/ u( q, a, z+ C+ ~6 a
$ w# q$ q& D3 F9 F1 Xpoll-class+ L5 o6 l0 R: Y
0 V( l3 G1 q- k( O
setup-plots* L, T* Z& i6 l7 s1 W5 s- z% g( t
7 `; l$ Q2 x2 t2 J7 sdo-plots' |8 V! Q9 I" l. l/ q
end
. \* S: X9 L) x( P: {4 |0 ^6 X# @1 C: J& M& ^
to initialize-settings# Y7 l) P. \' K F- x( g1 o
% \+ t. |! a- _, T( ~
set global-reputation-list []! [# m6 C) C5 J$ }; G) J
5 ~ e3 T, w+ K* d0 Q' X
set credibility-list n-values people [0.5]1 M; \; i1 X- U/ i% w2 a7 D
% s- I7 j5 x/ q, C1 h4 ~* tset honest-service 0$ U; u+ x: ]& ^3 U: w
$ z( y( q. I `! D- }/ J! Uset unhonest-service 04 {" }2 u+ ~5 b$ p# X# B" Z, N& k
' H ^) ?& K) @# A Y4 S
set oscillation 0
, x1 C% B5 F" f! d; @: y& V, Z" ]! N3 r0 X8 l$ z
set rand-dynamic 0
2 P! ]3 ?: Z6 V6 ]( Tend
2 Y: `3 _ w n" a: m/ Z1 {- V$ B0 J" S# W% n, R1 Y
to setup-turtles 7 m$ s; `/ L8 l! Y
set shape "person"
0 K) K. G+ J, ^7 A) E8 H( m8 `setxy random-xcor random-ycor
8 ~: t) j( q. h. U! z4 mset trade-record-one []
8 X" N! A* A' E4 U& ^( E4 w& O5 m" V/ E9 D
set trade-record-all n-values people [(list (? + 1) 0 0)] 8 t; v9 |" R2 i6 Q& t
, N: t& C' |# ~( N4 Y
set trade-record-current []
T) f9 E& ?) ?set credibility-receive []' u0 \5 m% z% x# s1 R$ l
set local-reputation 0.5 f j1 q2 S0 G- i0 s+ q( a
set neighbor-total 0
, J/ m. E) g- r- H# `set trade-times-total 0
) S+ L) Q2 J" j+ _4 \set trade-money-total 0/ k- e5 ` [* I% P. m
set customer nobody
7 Z+ l7 X Z) b: Y$ rset credibility-all n-values people [creat-credibility]# n- m) P) t! P4 ^
set credibility n-values people [-1]
" t' b2 P* u' K+ P1 F# C& \/ Cget-color
. z% u3 r' K4 _- j' z5 T6 y9 _; {. B0 C5 R' f
end
5 s0 y$ l5 ? _6 N. ~) F2 X' ]' q. T
to-report creat-credibility
; g6 s8 L1 i6 {7 Sreport n-values people [0.5]
1 b* ?& Q3 C4 _5 b. c* k6 Rend) x& I& B6 Z/ Z& k, \' i
$ u" n/ a# S$ z0 ito setup-plots
( ]+ N( P2 F0 l) X p5 G
' d3 \. j7 I. o/ K- Tset xmax 30
, [: ?5 S% o& d. i* ?. {% i
& O5 m; ^0 |; R4 A8 | hset ymax 1.03 c7 p' H3 x8 a
w h4 j8 V$ y2 d0 `* V. jclear-all-plots
/ z2 z' }- k' m6 _4 m+ f* s+ n& C
. ]: U) W8 _3 X4 z; i% Z3 U+ isetup-plot1
9 d. v N* {! Z. B" R
# l7 l7 C2 ^- y3 j$ T. b. Csetup-plot2, q& b2 c' I+ |+ y$ G$ L7 d4 w
* O1 p. q8 j9 h8 _9 d
setup-plot3
~, Q, h! a4 t8 r- U [' N/ q! N7 B* vend
; Q& \" Q! G% |% d7 M" R4 X# x8 y" K0 R5 w0 l3 C* T
;;run time procedures
6 @, f f! C6 d; \ W# H
3 A. a! b; M2 L" d9 Y! yto go
9 m1 s0 }7 i }$ y3 w( S& g) C. n! ]$ J
ask turtles [do-business]
6 H: D1 p0 n7 i- I" L( [; L" |end
. c9 ^* @8 U* k5 C7 u. A
$ w, V$ n7 y# \4 j0 z* _to do-business
( Z& q" q8 G8 Z/ b4 {( ~. A$ E# P, D& k/ K# ]; Y& @8 I& k
. _, F6 x! r! s9 ], K9 V5 P, A
rt random 360
, z; p+ r7 U3 ]5 h/ |6 i( p3 g+ c+ U+ e8 C# B {; |6 d( u: ?
fd 17 ~( P3 D% k1 S8 m2 E
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ifelse(other turtles-here != nobody)[& _" e( v8 @3 A" _! w% Y
4 y, k6 r$ \5 D' B4 K7 z* sset customer one-of other turtles-here% ]' u( c E g7 `
; X) | ~1 S4 e' j$ M;; set [customer] of customer myself+ Y9 I; O3 E: _; D: t' {2 Q$ h. f3 |
- l3 O# B! N( s5 B3 N, M/ Cset [trade-record-one] of self item (([who] of customer) - 1)
8 ?5 l0 O/ O- _( ]/ Q/ t3 _[trade-record-all]of self. z9 [ m" C% s" M0 k
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self4 h: d: g1 m. b
: W0 f! e9 C4 k" S1 u
set [trade-record-one] of customer item (([who] of self) - 1)5 Y, ~1 n1 t. J9 ~1 \
[trade-record-all]of customer# J. X3 b4 b, c" E* d# j
) j3 t7 i' l5 R! \
set [trade-record-one-len] of self length [trade-record-one] of self8 W; B/ t: e; b4 n3 H
( ?' H" k8 L1 r6 w" d# s1 `set trade-record-current( list (timer) (random money-upper-limit))
6 z- h# C( j. W1 i' S# j1 _1 R2 O2 ]2 F6 z4 F
ask self [do-trust]. }: y2 x) R, t6 [; p: F! J) k4 G
;;先求i对j的信任度- y1 ]1 b8 O( U& A
3 ~, \2 i! @1 j5 f6 ]
if ([trust-ok] of self)
; R$ P* ]3 X3 `;;根据i对j的信任度来决定是否与j进行交易[
# [9 Y# z/ u) q6 U- Qask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself. \8 T* G( d( a2 `) }
( _) U5 Y( s6 d$ r) j( K[: `# B. X1 e/ g# Y5 H/ n; A
5 g1 d2 l$ I3 z) P: v- Zdo-trade
$ m; q/ o: G" e7 j/ ^) Z( x/ Z: M6 B( R& J f; p0 g
update-credibility-ijl0 M8 C9 x' u2 }% O
) l$ U9 {0 r% `% G! O" M( g, F
update-credibility-list
0 r- B6 l6 h) f- U$ V. I; i5 v, p2 n/ w8 M) U; }) e2 {
' i1 L8 n" s: a6 m$ e) K; H! q
update-global-reputation-list- p1 V& E# k1 Y* w" c3 N/ |
1 u# X/ B3 M- S" s) x1 E7 \poll-class& C+ D4 ~' O% Q) I, b8 A; A. n
+ e( h$ s9 z. g- F4 U0 W
get-color
! _1 ?. ~: a# {. C; _8 w0 S* A/ ]! F# G- K! ~! K9 Q# D4 v
]]
! q; ]8 l/ c1 _6 g; @& T) ]5 o* N; Y) e
;;如果所得的信任度满足条件,则进行交易( T. f0 ^9 f( g+ |1 f" v- n% [' ~0 N& a
7 c$ z% U, Y8 m( m% C[' T+ }+ N: V4 _7 g* z
7 a: [ d. h" B
rt random 360* ~5 a/ o( K7 O5 X
* h) d0 Q/ T; o* T0 F* kfd 1
2 D. G8 X' |" h8 t! W; m0 I8 p
; r4 w1 `- M. @0 }]
& k& H7 V- i+ t N- Z
- M- Z: P; ~" n& P% O* r6 ~) qend0 e+ q) d1 s2 E
; I; H- s# D8 o5 y. M
to do-trust
$ N8 q, e9 p- Y: e q8 a' S; Eset trust-ok False
5 E- H8 I N& c* C' I* Z3 `8 q( q) k8 V7 F
9 \. ]) V5 U h' p& M% jlet max-trade-times 0
# i; {$ ? Q4 p5 Y3 _& W4 iforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
' a9 |& S0 b9 ]9 ^+ e( {let max-trade-money 0
K' _; Y& h3 Y2 D" x+ gforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
/ L; v) M+ w9 q1 {* z( @; s7 Tlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- v5 t9 D9 \( u% \ P
2 g, U5 Q' Z) h% G1 b. V( [# i
! r$ n- ?7 e- N4 f% o: F* J' L
get-global-proportion5 _8 ^" u2 c+ y, M K
let trust-value
; L* h6 w4 o/ K! {2 jlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)- | W& B k$ w( v7 x9 p+ p( W
if(trust-value > trade-trust-value)( ]1 f' g2 k5 K: a/ b- j
[set trust-ok true]
- J/ ^3 D6 Q' nend
0 ^1 [7 s( B% I6 N
* R- E8 o! Z' e( P; p$ {to get-global-proportion
# Y: q5 r3 W: x' E y( h. sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 `/ K I/ D& l) k t4 t: C- E2 t[set global-proportion 0]
; |. h$ G) u8 ]2 h! y[let i 0! k" C: O2 c7 A( V9 }, ^- p
let sum-money 0
, s" w5 p$ W% U7 l! f Uwhile[ i < people]1 W! m! Z( N: F5 T% }3 `
[0 J6 l* P `' {( E+ \
if( length (item i
& r4 ^$ y. s7 ~+ G: X" H& J[trade-record-all] of customer) > 3 ). j m, n: ^9 L) Y* e5 X# q
[
% n# b" q" ]4 V4 K; t1 v* i( Tset sum-money (sum-money + item 2(item i [trade-record-all] of myself)); K# m; f3 q% \ q* ? `
]
- K* f$ b7 i! Y8 u]# n5 X3 c% P+ Y1 a' t# ]
let j 0
9 p* _. k& h/ N. F- V& Jlet note 0 H; |4 Y4 a+ H3 L; `, K/ W" o( u
while[ j < people]
! ~4 {2 u; o1 A7 T- h: v) H4 A[. Y; i6 d5 C4 d7 b2 s$ X3 z# m% ]
if( length (item i- n/ ?* _9 p; R# d& A3 F4 b
[trade-record-all] of customer) > 3 )
( K6 |* r* k! U6 X[
/ P' i& c# j) }6 i7 _& Aifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
- d7 ?, M4 v8 `" d[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)] C& p* l% J. ~/ C- p( \
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]- k7 t5 B( y/ p2 y: }
]
+ H1 j" A, @) P2 o3 n7 f! \& K]
! M. |; u0 U$ P" ?2 aset global-proportion note7 E* e( t5 `; W" |4 v; |+ b
]& _" E6 h0 O. R# j/ Z
end) S8 r% T k$ b( E3 S G. \# l
% q3 |6 E" N; ]- Y fto do-trade; C- _/ h% B" D1 g7 u9 f- _+ n# j
;;这个过程实际上是给双方作出评价的过程
4 E! x0 y5 U+ B: W3 z0 y! l" P8 F) Bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价9 a% ]; \9 N) E6 F8 G
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价7 {! o1 b3 G- I* |. Z: |, d- x
set trade-record-current lput(timer) trade-record-current
8 ^/ W, R7 ?/ u;;评价时间! l% V5 O* ~; Z. `% k3 x% r& |0 S
ask myself [5 A: H0 v: z5 o% b4 @7 K8 |- _
update-local-reputation) q( H5 }# G# G
set trade-record-current lput([local-reputation] of myself) trade-record-current' }& e1 L% `9 A
]
$ h/ X+ q: C8 ^9 ]/ D& T3 Bset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) V& C- e0 |2 E, Q9 z4 E
;;将此次交易的记录加入到trade-record-one中
4 E x! \8 U. H% Cset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
: _, w# `% n1 e6 E u5 Ulet note (item 2 trade-record-current )
6 c+ d: |! L F" X" c9 D lset trade-record-current
) O/ T: Q8 R& _( R+ p& B5 K(replace-item 2 trade-record-current (item 3 trade-record-current))
$ N+ w2 u) m# y. V7 n7 F$ s+ G* }set trade-record-current
0 d/ i8 b! ]$ }. G, g7 I(replace-item 3 trade-record-current note)% W# O4 B- q/ J3 q0 j
2 i4 u) ?6 E' d- V8 U3 o! G
3 c& _5 w0 U3 g E. P- M& J" j3 j+ Nask customer [( H+ F( Z, X: y/ H$ G- C; D# V2 {5 o2 N
update-local-reputation, B! C+ r8 r$ V, G/ X8 f! }4 K
set trade-record-current; F6 y7 i9 [, s9 q- I0 D, ]
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
7 A7 J- U* b7 A: f]* r" a$ h5 Y; m; _
6 ^- s; x C# J9 m$ y( }
# ~* k b- w7 N% Tset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: u8 `( G7 n: f! a$ x" S
; h" ?. t9 r/ `* |; Uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
' g$ ^7 p# S5 `( e! B) c;;将此次交易的记录加入到customer的trade-record-all中5 } R& Q# y8 J, } B( T+ J
end
4 S F1 i3 W* m. [6 L! e D: s+ u. O; f4 g! x. W
to update-local-reputation8 N& J+ P, L- ]9 `
set [trade-record-one-len] of myself length [trade-record-one] of myself
`& _* g6 ?5 |# r+ A9 S9 m
3 B- K& r1 K$ q9 N) {' r0 z' A2 v+ z* C/ j2 y: U+ L
;;if [trade-record-one-len] of myself > 3
3 |8 H4 S- P2 ~, `- fupdate-neighbor-total) q. f5 T( K+ S" z
;;更新邻居节点的数目,在此进行- u; z$ F# ?3 n, Y+ P0 `7 K
let i 3: ]% o) R2 R, g# i* i
let sum-time 00 U8 R. ^5 y' \9 R' V/ x# d/ p
while[i < [trade-record-one-len] of myself]% F! ~! b9 s7 d$ ]0 `8 u: X
[ l+ c( i) z F/ u
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% p" \$ h& ]' ]8 g! k& Yset i" g: r6 ~& p& x/ i' F
( i + 1)2 Y @8 y" Z& B. d" V" {3 k7 I
]2 |. n% y2 T2 B, ]- D( d9 v
let j 3& f3 r/ U0 a o+ [3 t& K
let sum-money 0
# e. ^) }) X; a8 U4 [% {while[j < [trade-record-one-len] of myself]
* s f! B H2 H[
( A* [5 K1 m* Y; v* I0 ]/ fset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)8 t3 n$ U0 I( V& X- C* y( d3 Z
set j( I6 E6 R, o9 ~; \9 W# c
( j + 1)
" ] o0 S; b2 k& ^+ M: Z], Z1 h. I1 w% c
let k 31 i8 @% | ?; w$ {
let power 0
, _- j8 M# `: @let local 0; k3 g( f/ y/ L
while [k <[trade-record-one-len] of myself]
' Y( T, N$ U1 J5 D. `[
) c- |% L/ m9 @& J* {, j! S, Zset 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) / E4 ~9 o9 N* ?: i5 F/ H$ x4 I
set k (k + 1)2 _- K( z0 N) } s& M
]
s+ W) A) S- v& w rset [local-reputation] of myself (local)
9 \! {7 x4 U1 Y! \end
! ]* i& H% M* m* g' ] r! V; J$ ]( L/ c! g
to update-neighbor-total% I8 {+ x0 r) c
$ c7 G6 w# O+ p; x3 Xif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
& t; j2 V6 Y7 @" q6 e3 O! v
; w5 Q9 U5 Y7 d4 o l* Q) l1 h% z, S; X, l" [, H8 f; a# H
end4 O/ s( S8 `1 v5 \ e" y
! q% @ x2 w; }% @) t4 X
to update-credibility-ijl $ F& v* I, r8 A, i6 C. t3 F
- q, }5 d: w. h8 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。
. ~+ G2 l; \& _: Olet l 0# E) w) C# B' @3 p6 g2 Q5 f3 q! A s
while[ l < people ]
G: v. _ X% c. ]7 k$ F;;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
# C, z* L4 m" f& Y, T& c, Q8 E[5 d6 U( f6 D! Y: v( i& W! U6 Y1 Y- y
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
b- f8 |# T: R. C! pif (trade-record-one-j-l-len > 3)
3 d, e$ X }) q! w3 @" @+ i6 Q[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
1 O5 q2 l, r$ T% z0 jlet i 3
* @" I. r2 [& T4 l9 o3 i3 k8 tlet sum-time 04 u* F. L) V7 e) V
while[i < trade-record-one-len]3 h8 K2 ^9 ^/ ~
[: x4 a3 R# t7 ~% D4 b
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ G2 U2 h, Z2 b! l/ gset i
S- t" c7 J* l5 G* }( i + 1)
6 D2 M- h6 G3 e0 V( e- h]0 x2 Y* Z' O2 v0 ]7 _
let credibility-i-j-l 0" r. O) w1 R/ M0 @+ y
;;i评价(j对jl的评价)
+ B9 K n* b5 R8 H/ ], `8 I' ]let j 3" q7 M# {# p7 V1 S/ A" G! U
let k 4
. V% E+ v9 T" @+ z1 Mwhile[j < trade-record-one-len]
! E1 [' [4 Q" z0 ]1 F, L[5 o" c8 ]4 }8 C% W6 M
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( A) T* K& ~+ M) T$ W
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)
' V; @: q( U. ?0 @2 W( C# `set j
5 c# f) X0 i& j4 ? \0 i( j + 1)
% B& V* t9 Y: s' c1 P( V! G# @ V]
4 e4 S( F/ D _3 {3 h4 tset [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 ))
% g$ X4 t2 C" y9 s& `" C' }6 I5 I9 U+ G. X- c/ e0 ?" x' |3 \
6 x! n( q2 F2 a: M' P( G# u$ glet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ y, O" \6 ]/ @' M* A;;及时更新i对l的评价质量的评价$ ^, Z1 u0 e$ y4 S# t
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
* p+ [+ l3 L. U" kset l (l + 1). j+ B/ n8 h0 O3 A( V4 C; L
]5 L' r9 N- \1 Y( c5 K
end
1 X5 e5 f$ }6 G
4 l& \0 t' \- ^3 @, wto update-credibility-list
+ }, e) X- E3 q; d1 s1 clet i 0
+ ~0 U/ w" z& }/ b) q! M3 cwhile[i < people]4 Z' R& ?! k- T' e0 L2 g! H7 l8 E
[
: J4 X; z! C' P+ l( G0 O. \let j 0
/ D+ u2 X* Y8 f2 Alet note 0
& y. H( k6 P, L M: E, [$ Glet k 0$ K. E8 x1 x8 _0 ?
;;计作出过评价的邻居节点的数目
* @% l# P0 N" X3 ^3 d0 t! x* rwhile[j < people]
. q: B# n6 p8 d: [[ A; ^" @& ^# N/ a" i' g
if (item j( [credibility] of turtle (i + 1)) != -1)* m4 B& h" v: g, Y1 [5 I
;;判断是否给本turtle的评价质量做出过评价的节点& o' }2 g6 p w7 l* K- I. L
[set note (note + item j ([credibility]of turtle (i + 1)))6 E! E I- `+ T
;;*(exp (-(people - 2)))/(people - 2))]
# B! D! V4 ]/ l% H+ Uset k (k + 1)" A) @7 ~0 B9 a. B
]
. X2 B& T2 ?% n7 t. @4 [ e Kset j (j + 1)
1 o2 G, I3 b# q7 Q7 L7 y]6 y+ q) \, ?4 d7 `2 i
set note (note *(exp (- (1 / k)))/ k)
" Z0 i" l' G) s* R3 F+ g8 Vset credibility-list (replace-item i credibility-list note): T3 x2 Z1 c' R( t- b
set i (i + 1)5 }, s: @: [. F, ?, s
]
% S* M$ F! M1 A+ j* S2 Bend7 w( c I: y/ @+ K& I" t3 e
* n* t) g8 d# X. |
to update-global-reputation-list/ U! h" i6 p& g$ {
let j 0
1 L q6 K" p6 owhile[j < people]
- n: z: w: b9 [[
' m, P L9 V8 G$ X6 k1 K Mlet new 0
; l, D: S1 v9 J, m- {) M# [;;暂存新的一个全局声誉* \1 H6 V( s# W) h1 i' ]. m2 r
let i 0& l2 D6 ]$ L% I
let sum-money 0
1 J. o+ u9 B: C+ I8 E* Qlet credibility-money 0
% `$ x) @' a3 S( Ywhile [i < people]
# v6 {+ q. j. K1 |; n. A[
3 }* p! L5 y: F/ ?+ Nset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))& z6 x5 h$ G, b% H" a
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
( F: Q$ I1 C9 C1 ]/ `3 q R; cset i (i + 1)
# Z4 o" k4 @! ^- ?8 Y]3 I5 D3 D. n' _0 O$ B0 R) E8 n
let k 0
1 W- C$ z' K- Q8 b3 G) c9 M. [& klet new1 0! N0 I, Z8 G+ u8 i3 L% |5 K; n
while [k < people]
' g7 w# L9 b# z* ?0 T[# G+ O/ O3 S( l$ c$ J0 n+ z
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)
/ d. f$ \5 G3 o, Y; z1 d5 I ~set k (k + 1)1 V$ `" p$ j/ m
]
0 K4 c& j5 O# j; L! d2 G0 l$ Tset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
/ u/ C! [. ?0 xset global-reputation-list (replace-item j global-reputation-list new)
( P4 O: X0 l9 r5 A4 Z7 |set j (j + 1)6 ]% q) K5 l# b
]
2 o( V _- ^& V, a7 Fend1 g5 A# X5 J5 a( c f. a/ {- i! l
3 G% y! ~/ @! \* N. R- |6 P2 x, q! @" y: P
3 G8 a7 K7 L7 Q/ cto get-color
) T4 e) F- G5 n; d; S4 @
" @* T: e: `+ V0 ]- w$ t Aset color blue
" F7 h9 T4 ~' | kend3 Q$ d- g9 G+ ?- Y3 }# }+ X( R
0 ^" o G* e ~0 m/ B' [1 |! J
to poll-class
# A. b; k+ {7 a' {9 Pend" \8 D! ~& q' |$ G6 Q
% S' M. A/ u. n* T! a A# j, G' U
to setup-plot1+ I3 P( l8 X+ P7 k& c! e
' l) q' Z! e. i* U9 f+ q' u- Jset-current-plot "Trends-of-Local-reputation") v% n- V( i. w; e: L" j
. Q. p' O+ y; E5 l( h+ B( J. }
set-plot-x-range 0 xmax* q T c' X1 t- x; a+ [, M; c
" `1 U* U" H5 A$ y! U5 }+ Eset-plot-y-range 0.0 ymax
# C w* f. J4 s* Bend
( b. F+ W8 u) R2 [! V- ?/ L, U4 [" M! q6 L; v" n+ K
to setup-plot2
$ n3 `" W0 q! c5 r* U# _( I8 U7 w) ?: v* i5 r* s1 T
set-current-plot "Trends-of-global-reputation"
/ e, H6 j1 ]! H0 P8 k( x& w/ t% X
set-plot-x-range 0 xmax i+ Z6 D, d: g1 B
. s/ w* g( k- x+ o( ^set-plot-y-range 0.0 ymax7 P4 i2 V5 L2 C* ~3 |
end
( V/ j2 k2 u8 \1 Z! F; w& ]2 G: V9 c: H) b5 j
to setup-plot3
/ v Z! Q4 p) x; c) k' B+ e: X4 V& t1 C
set-current-plot "Trends-of-credibility"# t6 `- ~. }. U- E, r' F1 y0 B+ R
1 C( B( f H G, X: r' Y5 ^set-plot-x-range 0 xmax
6 n4 I3 Y% ~9 m; F: t
Y8 `! b7 o& e( N4 `set-plot-y-range 0.0 ymax+ P. m7 P8 r0 U3 U1 L+ H
end7 S b& Z6 @) n& i8 L) V! c( w7 a
: R3 N. ^; L& l, |
to do-plots
6 X4 n0 K& ]' x1 sset-current-plot "Trends-of-Local-reputation"
7 H1 ~9 d- q* }) l9 z$ M1 ]8 sset-current-plot-pen "Honest service"
+ k- t& }0 J6 p6 Y% Z% b/ Z& Tend% I9 |) d0 J* r
* r( J: Z) ~# _* m1 O3 _7 S! `
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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