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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
8 m2 |% x) r* b& |7 \globals[9 x5 X3 n$ @ E- \6 _" l
xmax3 r% t$ Z \1 H# ~& ~8 F( n
ymax
9 b' z, C1 W K7 `! f. R0 S0 eglobal-reputation-list* c; o9 u$ Q/ X/ W! Y6 U
1 u* ^* W8 Q2 R8 M) M2 x
;;每一个turtle的全局声誉都存在此LIST中# H8 @' d6 m0 H8 Q
credibility-list
+ B# i3 e1 D; t: C' a8 ?% K;;每一个turtle的评价可信度- J3 w8 h4 j5 n; _1 |# u8 K
honest-service
* c! b6 s7 g$ L# W: C& N! I2 o# Qunhonest-service
1 y' ]) s, Y( G5 F5 V1 h" H' H2 eoscillation
/ G: \& }8 A4 E1 Z, b3 s# Orand-dynamic
1 h' d3 J& Y Z" |2 ]7 n7 V' P1 a]
4 G1 N6 e* K, ~$ e
! l+ ^1 ?, S9 ]! \2 vturtles-own[
1 X; H9 V( g! r, k/ P' X4 Qtrade-record-all$ k. a* \6 H3 I0 V
;;a list of lists,由trade-record-one组成$ c7 i6 X- {; i7 ~ v6 z6 U
trade-record-one
: w" N6 c0 j: V( s: @;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录& z$ A. n7 H; q+ z) E5 Y
" @ r/ n& J+ b; V5 c
;;[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]]
$ O3 \, a/ c- R$ }) Ztrade-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]
D# |0 h: ?, n8 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list6 y9 [% Q( N2 c- d( h$ J
neighbor-total
+ F; J# i' D7 N# [$ O( m;;记录该turtle的邻居节点的数目9 z V9 m; z7 [ M2 T" c. ^
trade-time
* ~( J5 O, h0 N# q;;当前发生交易的turtle的交易时间
% q+ |; J) C: }+ b$ v9 c* T" M% d$ uappraise-give
! H) A( y+ a$ e- w) [;;当前发生交易时给出的评价
1 g; }1 }' Y" G% [; e% kappraise-receive5 U" F# O9 e: {9 O' v" T3 @
;;当前发生交易时收到的评价& ~, y5 r4 [! ?
appraise-time
. i" x) ]( x/ P$ w+ _: m5 S;;当前发生交易时的评价时间
1 z& t/ l5 p* A l4 L- Dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉. e) G: L3 L$ ^2 T! O: d
trade-times-total& m$ p; ^1 S8 U. t
;;与当前turtle的交易总次数
, a3 \ ], R6 W u. M$ C G# {5 H6 R& Mtrade-money-total+ t" l: N+ }4 m- v( K
;;与当前turtle的交易总金额
' K, f4 h! @: o0 P- c& Vlocal-reputation) w, r% m$ E2 j7 a
global-reputation: f8 H7 [! U- c+ m
credibility+ M0 ]. W8 V) M: B$ B
;;评价可信度,每次交易后都需要更新+ j3 `4 Z9 Z% x% v$ M
credibility-all
/ H; S% `' g' ^: r. h2 s;;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 |1 A2 q, h* `7 L
2 Y8 O. n. h- ]$ z1 U; J& 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0.56 _9 I& c( l: l6 \+ _ v2 N
credibility-one/ V1 @9 Z" T, V8 d1 ]
;;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! I: O, W: R% A
global-proportion
3 g0 U5 i$ A) N$ B8 ]5 v, Icustomer% p0 [ q+ S8 n- K
customer-no
$ Q! J1 r2 F# O- Z: Rtrust-ok6 z( u4 A0 a- i! E4 I
trade-record-one-len;;trade-record-one的长度" ^' L1 t: Q/ h9 Y$ C
]+ f" F6 B. Z- [
, D) U# U. k! c4 |3 Z4 l, b
;;setup procedure
6 J% f7 [8 V7 C: y+ E' i" V
* t( F, e) n1 {% Nto setup3 `3 X9 L- p& p* D: d6 ^$ t
- q- x: p8 I2 y( Nca- q4 ?1 m3 I. E( H: P" c$ b6 k
5 m0 ?2 @0 y" ^0 N( rinitialize-settings
" n3 e- Z, S9 \( W$ h- o
+ R0 D* J6 H9 q4 kcrt people [setup-turtles]
, F; V' N9 e. R; _/ e4 s$ O& s
; T8 t: U" K ]# C5 _reset-timer4 B* ]3 M! G* |8 }& W
2 K5 K3 w1 p j' Bpoll-class6 X" Z: q% X" c; {3 }# A
5 j2 o0 D& O- C8 t
setup-plots% o2 R7 h$ ~: D; ]5 E& p
% z: X% e$ H% _' Rdo-plots: F3 e5 q( @& B+ H/ Q; z1 D
end
) K9 }4 j* S ?" | y2 A7 i
& @' p4 ]4 h$ Y5 Zto initialize-settings
8 r3 R% Q: j, n
: [6 Q0 I8 y) a: p5 D8 hset global-reputation-list []+ g( L0 ? ~" I( v
/ c ]! d! q2 Y# F
set credibility-list n-values people [0.5]' W% T: U' N# g* U
1 U+ R$ W3 E. _& Q
set honest-service 00 C+ D( R: A5 a9 Y- }5 W5 J
j& B0 o$ a/ r" U& L6 p+ O _set unhonest-service 0
- X8 j& o4 ~% m2 _
3 c3 D; u- m6 Y0 iset oscillation 0
/ x) d& x& Z( J+ u9 m& d# ?6 q; U1 w" A( i3 u0 l- X; d( E
set rand-dynamic 0
3 R- V- d/ ?$ aend- [( c- b+ e- o* k& p
1 b2 w1 C2 f+ o" U( |5 Ito setup-turtles : V( @0 h8 k$ G5 u; V
set shape "person"
0 Y% q5 ]& [* D+ T+ {setxy random-xcor random-ycor, W# k9 Q; y2 R1 T6 d7 I' M6 d
set trade-record-one []
9 c' W! P, R' e% t( [0 ]2 s; J( \5 q( a+ u- K G( L
set trade-record-all n-values people [(list (? + 1) 0 0)]
/ L0 V7 N; T- @0 C9 q, u c# d; Q
0 Z9 z! j% L* @# D5 dset trade-record-current []( N0 J3 J( l* w
set credibility-receive []
, j+ T1 Y$ m3 D8 e" }% x1 }. Kset local-reputation 0.55 K4 t- D' g/ r2 e# o
set neighbor-total 0# X6 c) l& q9 ?! q3 O; R
set trade-times-total 0! `% C8 ~- I9 F% j/ c4 H
set trade-money-total 0
% q! {0 l0 C/ x; N, p7 Dset customer nobody/ M! c: P. c4 `& o! }% y9 [3 ]0 U/ i2 o
set credibility-all n-values people [creat-credibility]
6 c0 {. |6 L) F2 Uset credibility n-values people [-1]; [' n2 k. g# E
get-color- y( {- c; f4 i+ ^" S) k0 d
: b1 I, h5 x4 W& C; y
end
; a- C3 O; J) E% H+ L: o6 B% k0 P% p" E3 J
to-report creat-credibility
+ k/ r7 A* w2 y+ ~7 Treport n-values people [0.5]( b* v- c. V1 E# z$ @% N
end' k* W3 y6 j2 p8 t# N" G: k
$ L h9 j8 _. P+ b. M1 i
to setup-plots2 M, _: y; H% ?7 u/ [# ?! ~
) d/ N# p: ^( @! p0 d8 Iset xmax 30
: g. u) L: O2 G; \7 M/ R" A4 _: v7 o% {" \6 V1 b$ F; X8 q' h
set ymax 1.0
+ d0 U3 V. D \9 C/ f
' o3 p$ [3 r4 Y% rclear-all-plots' x0 _4 s& V- S; ]% e/ `
! u# V3 j4 R' Q- }2 o2 _setup-plot1
' ~7 W+ a2 M/ n, e1 G3 w4 y p5 ]- Z+ k" y% j
setup-plot2$ R2 M( l# P% w8 ?4 h" H! G
0 ~- s* n: t* H5 e
setup-plot3$ n( c/ `" A$ g( c/ j
end
) O/ p: T( V1 y, N$ M+ q* L+ r5 O: E5 s
;;run time procedures+ G* m) B9 W% h7 J* X9 z, _
- w5 }, r5 E7 O' h/ S2 \to go s( J( p, P, P
' Z) I! `; x* @
ask turtles [do-business]
0 S5 s9 D3 q g- mend) i* [* s4 o. I
. g3 ~* T+ s* @( cto do-business ' g% R o& V: G9 p1 U
# N, v' i _) j! h/ g: j/ M6 ]# }& |1 Y9 c% o1 a
rt random 360& H9 v, F* @9 I& k$ u
! Q" {7 v/ |" U& g2 |
fd 17 [; a8 f$ {/ a0 K
1 ~( E2 f# r6 z9 yifelse(other turtles-here != nobody)[
) p( X- r* n8 S7 |4 n* N3 j6 H* o/ b5 h5 n8 l- f
set customer one-of other turtles-here: a8 F2 Z `2 L/ ?$ M$ s$ ~
! J' S; C& o* T/ E3 F;; set [customer] of customer myself
- P' ]4 B1 P3 d2 n5 a6 ~/ R$ A* Q! Y% _6 J4 Y8 F
set [trade-record-one] of self item (([who] of customer) - 1)
+ q' \! `1 r, U! p8 {[trade-record-all]of self
6 g3 t4 M" Y, D$ D v;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self! |7 v# U5 Z& U5 a0 |* a
% R: R6 z( X& Z# @, H
set [trade-record-one] of customer item (([who] of self) - 1)
6 W1 V% O* G3 h, S[trade-record-all]of customer
* H: W+ p/ a$ ?2 K
) c" `% m( A* k& rset [trade-record-one-len] of self length [trade-record-one] of self
1 \ W$ ]! H+ z6 s4 R: G2 o2 h0 d" T' R n7 k$ R. Q: p( i X
set trade-record-current( list (timer) (random money-upper-limit))$ N8 y `! d- A3 V4 N# _
& N1 T0 S- O3 v! Y
ask self [do-trust]: I8 p3 C: ~9 k
;;先求i对j的信任度; ` ^# i2 P( |9 m
2 I* h# I' B" }& c
if ([trust-ok] of self)
' Q$ h% f( f* I% W7 ~ s/ Y;;根据i对j的信任度来决定是否与j进行交易[
- w* k+ ~6 M$ ?5 w5 O$ cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
9 A3 l( u2 D* Q/ w1 z6 P
9 ^: B* J9 l4 F[$ {5 X6 _9 n6 D4 @" } a6 X
k' j5 Z( F8 {4 W2 l# ^0 S
do-trade
D3 D- r( S$ T N4 t3 ~7 T
& f0 ~8 o/ j0 v0 I& _( C; v: x8 Oupdate-credibility-ijl) _! N8 K) n5 L& V
+ [7 ~$ c5 u. i5 P# e Z- c
update-credibility-list- W( d. ?0 u- ]& U
, Z8 H3 R, j3 c$ D0 Y, H
) n6 y! v6 j# {5 I! Cupdate-global-reputation-list
5 X3 _& r- m. a% s8 @! W6 K4 w
' q% h, [" L( E9 l# r9 opoll-class* Z, D( z1 e: O* i. R9 e
4 @& E5 f( H! L0 h+ ~
get-color5 p+ }7 C% \8 D# D
. D# \$ f# X. p/ n4 {]]
5 w6 J. X4 {7 R; K( ?& N! i+ R5 G; W
;;如果所得的信任度满足条件,则进行交易/ [; z" u1 C f# G4 d
/ ]5 ?( u. }$ J+ `+ `[$ ?# V1 R: y% S8 i2 o V
2 ~% U' [# l( g# J
rt random 3602 |5 @+ B- H8 b6 {
$ y8 f. ?: a1 x* \fd 1
$ u. a$ s* |& H! o
$ ~# k0 J, F' p( @]
5 o$ b- g7 ?( x u4 g1 p! N3 W( z# z
end, n, h) |: |4 X& h5 e1 V
6 y2 O$ j a& p# M2 r2 I0 z
to do-trust
7 r9 I0 p+ Y/ E2 x9 d8 bset trust-ok False
; J$ x! ^9 D3 S" n+ H- L3 C- x! V6 f2 f* L
% \' E8 ? N% \* D7 E
let max-trade-times 00 {& S6 y. k% b0 Z5 T. p
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]# @# F1 I: R( o1 L1 o
let max-trade-money 0$ ^' _0 n* k9 P( q6 t& v
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) g' u5 W. ]+ G1 e
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
" x, k/ {$ C5 D7 H G; L( C8 V5 l* s% m, `0 {" d9 N
# b$ B9 d E: c5 l. ]get-global-proportion
5 x7 }* ~- _9 Dlet trust-value, ^ [+ @$ q- ]8 n* L) {
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)9 P6 ` k7 G4 b% L
if(trust-value > trade-trust-value); a/ _5 m9 z( ]# S% Y
[set trust-ok true]
* I- s( g; D+ f7 ?) t1 bend& `" M) o# ?/ R: {' g4 m6 h5 V, ?
0 U# T- G. {- ?+ c6 h5 V' j0 `9 q
to get-global-proportion
: G0 V4 n" x+ z/ A0 ` b0 Lifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* g* q! A5 B5 i# G3 ~% L[set global-proportion 0]
; s, o/ k& N+ D' w* A4 `+ K[let i 0
$ k* J/ P- [7 L/ L4 w! @ ~9 Xlet sum-money 03 R, Z& M8 {9 M' b" J
while[ i < people]
: M% T' b: e5 `+ s; i[
7 N+ Q, ~0 c2 s$ u/ K$ Y4 A, cif( length (item i
: G! u$ G$ B. c" Q1 s& G1 O[trade-record-all] of customer) > 3 )
) f1 M2 _3 V4 s6 J+ ?6 n" C[
/ G" N) q) K; l1 g2 n8 Uset sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 ^ V$ ^: F6 I& N5 C( v8 h
]3 U! K* A( s* ?% H% P
]
0 E. f) Q, F4 \4 _/ L9 llet j 0
: B3 j6 U: E9 \1 l1 a, X% T2 Ylet note 01 v2 r! V5 T( ?5 V: h# S
while[ j < people]
7 q/ \$ Q, R; p& ], H! S9 U$ D[5 E$ v0 z1 z+ j$ }$ T- U; K
if( length (item i# z( c/ ]7 n0 v. ~ `- w `0 b* t
[trade-record-all] of customer) > 3 )
, q$ |' [6 ~ Z; x ?% U[
: z7 u! T& u+ L+ oifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)/ [6 h M) D1 K
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
! u4 |/ C9 q( \1 L* R0 V N[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
* Y& T% ]! }. R4 m) ^! y]
) ~. X( O8 M" Q7 }; B9 r! I& d]
( Q6 x5 c* {; o8 zset global-proportion note# e1 L" @- V2 C/ r3 j
]* h. ^0 M6 {& M" ], J# X
end
{6 V9 V& s9 P+ U4 L( O0 e( T6 b; ?2 ^3 a9 `
to do-trade
; T3 l+ A; L3 I, t2 m6 Q;;这个过程实际上是给双方作出评价的过程' ~) {* R9 C: H( y1 S, A
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价7 t: l% g. c- j6 y- Z* |. V& b
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价. K0 z. b$ L! d: ]6 m
set trade-record-current lput(timer) trade-record-current+ L! q6 t7 }5 D& ]8 Q4 y
;;评价时间$ v3 y2 ^4 E; P* i6 z
ask myself [7 d N* v2 b7 Y% ?9 F
update-local-reputation
" M5 o. K& u$ l5 U0 t6 [set trade-record-current lput([local-reputation] of myself) trade-record-current- I6 g8 o- z& }9 }( ?! d a2 ^
]
& @* ?1 M" Y3 _2 Bset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself2 v5 a0 e" W3 H
;;将此次交易的记录加入到trade-record-one中
/ Z# m4 L+ L6 t2 ]* _8 Gset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
2 D; i1 I* p4 t% p3 l3 l: h R* k0 Clet note (item 2 trade-record-current )
& _/ x' r' U( Bset trade-record-current
4 \5 ^' h: A# d @: t; c1 C(replace-item 2 trade-record-current (item 3 trade-record-current)), \$ [4 D. | W3 h, Q& ?. B
set trade-record-current
9 l9 ~) U/ s& z! u3 O/ y! K' l6 R(replace-item 3 trade-record-current note)$ V: b; C# P! H
1 |! B' F, k; y, }' L* P$ o
/ Q! z0 j6 ]' [5 R: x
ask customer [1 i9 I) o, y0 D5 w/ L4 U
update-local-reputation
/ s# k7 b# w/ s; A8 I% E: B$ Tset trade-record-current
8 w0 W7 ?6 A0 ] F(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) / I h( c/ S |
]
7 Z) j; N+ u. p
3 c. h. Y0 u. r4 \" n
0 x/ a/ M: g+ ^) d( ^set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
) o1 e! p$ Z M8 }/ R" Z+ k- ?) x* P1 k. W, L2 P% L3 f8 H- u
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
% t7 a& ]- v3 X0 K;;将此次交易的记录加入到customer的trade-record-all中7 H" ~2 W7 f* |! v0 V
end
1 i& P- _+ m; C& f% D- C: P
6 a2 C* |0 Q" e6 D2 L4 l9 fto update-local-reputation
; ~% _+ q! K1 `set [trade-record-one-len] of myself length [trade-record-one] of myself% a" k- k7 f4 |6 P. l6 [5 s0 I
7 Q0 {9 }( T/ q5 q& Z8 _0 Z
- X- R% c: v( |* N! }. ];;if [trade-record-one-len] of myself > 3 , m, o3 n6 P2 g* U3 ?
update-neighbor-total
4 g: Y- I9 A9 i( Y6 s;;更新邻居节点的数目,在此进行5 a4 R# {, f+ \! Y5 N! _) g
let i 3
# O4 Q0 a! B0 a4 h& Nlet sum-time 0
( j) V) m; ?. |) g9 K5 g* ?, @while[i < [trade-record-one-len] of myself] N# b# z d8 A( |
[& o! K7 T; d+ E: A, L8 z
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )0 } F* r" C+ f2 K' z, S- a0 O
set i
" K- k: S4 ]6 k8 C9 a% P( y( i + 1)/ r9 e1 b$ O' x8 d8 F4 t' K8 E4 c
]
$ c: ]1 G! U* G6 J9 G* vlet j 3$ C- p8 l, L. e: P. C7 O
let sum-money 0
/ j7 @' i. S# U& K$ L0 q$ M- z9 r2 Swhile[j < [trade-record-one-len] of myself]
, f: O# w1 A/ u[% k P9 z# E6 o) p* M) ?; |
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)1 _0 a0 s1 s" i! L& Y9 j; @* d
set j
, J! [9 E4 w' k5 m4 o1 K( j + 1)
9 ]3 L3 ]7 s; u- R, a! c]
) D& u! Z% ^( n" w. g8 A7 ilet k 3/ [7 p6 \) j0 M: Q; i# Z
let power 01 }2 ^! ], r- E, e: L7 }
let local 0: V+ Z% z$ u" ?5 n8 W% L
while [k <[trade-record-one-len] of myself]
# y9 E0 }5 G/ \5 e, L; a[
; V' G7 N9 W) mset 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)
4 K% o* I/ A1 h6 x9 [set k (k + 1)8 E: D7 V! {) s' Q
]
5 b K" S$ p! u, Q" _8 ~* Tset [local-reputation] of myself (local)* v" i" @ H/ \8 O
end& W9 w! a3 Q* J! Y& D
9 C# `/ J) t4 }- c! V$ A+ ]/ p
to update-neighbor-total! L( G% @- \! c* c
: f ~8 ]2 K7 D9 G6 wif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]3 ~* L: K) u2 Q+ `/ x. B
# `: P6 Q$ b7 ~1 j3 B+ A
$ E; Y/ ]( j- }3 ]' K9 H0 ?& \* \0 Y0 K, eend7 _! v; Y: J4 B
8 s* H7 s1 Q% W. C1 X& b$ ^7 D+ N. fto update-credibility-ijl & r ^/ a( D4 Q% a
' B! u2 J( t/ i
;;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。. F0 f& ^6 k( n9 q% S1 E& r6 o
let l 04 L) ^: D. M0 ]3 c4 I7 {
while[ l < people ]1 f: k( }2 w+ a- ]6 j3 j
;;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0 ?- j. N% s3 R* p, h+ e2 {
[
1 W9 |. q. D" L' o8 i" O& flet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
& N8 b5 I) R. N" i4 lif (trade-record-one-j-l-len > 3)7 _+ A( z- z) s# T/ Y1 a! 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 ]! r7 X J3 O a3 _" Y2 X, l
let i 3
; ^2 ]* w' q0 }& K& }let sum-time 0! W4 l: `- W G1 L: s3 x# e) f
while[i < trade-record-one-len]
% A. X* L* F# V[+ S) L' x# W: D( h7 Y+ k/ R+ y( `
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 b" F: \3 C# g B
set i& G+ ?( S f+ ~1 c( F
( i + 1)& \' _* c# B& O, P8 i5 S/ n4 \1 e1 d
]& }' a! l) |' R
let credibility-i-j-l 0
; S! ]! C0 b* R! N/ t;;i评价(j对jl的评价)* a& w8 l+ `# V- n' p* o5 f
let j 3
# ?( ?3 ]/ n# R4 M9 C6 G, N3 Ulet k 4
4 |/ E1 r! s' A( O/ I, Z) owhile[j < trade-record-one-len]
6 ^8 \% Z' Y% W5 C5 |3 V" h' h[, c( ^/ h" }* e$ K$ N& A
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! V. D' ]0 _- B8 d9 R
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), o$ L2 t9 E; ]$ c8 `
set j* f. _: T5 M/ L) y q
( j + 1)
" D. C1 Q" E5 _5 v2 m4 q]' J; p! `" S$ Y* k! I% R2 j3 ~* ~
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 ))& j1 w0 X) J7 f
% @' v( s5 m3 M; j& D* [. L" `5 [3 h( V$ I: F! i
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)): A* T3 U8 v- z9 t( S* A# j1 q7 W
;;及时更新i对l的评价质量的评价
" }5 n" j- n) p+ s# Y2 m1 pset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]3 `, A; m) h. j C2 ?. K' `* t. e
set l (l + 1)$ i% c* d7 ~4 e- @9 q
]' @6 v$ J' k/ r8 W6 y7 }
end
; n t2 Q, k8 L" N" K7 @2 ~7 v! Z. E) X' |; K( ^
to update-credibility-list/ V1 c' g8 g8 T; P
let i 0
0 H% z/ S* Q# b0 G! `& Hwhile[i < people]
' d+ g9 s- J) X, H[
6 j9 x5 l* s# U6 C7 G: e' tlet j 0
. ]4 S$ f4 k% \/ m1 R3 rlet note 0: {: ?# U9 @1 F
let k 0* T R1 F7 ?$ h. s
;;计作出过评价的邻居节点的数目# W7 j$ s. k+ J; _+ l7 H5 J
while[j < people]
- O' p! i+ ]9 e) f[
' q! @5 B; ~& M: c" P! F6 a) Rif (item j( [credibility] of turtle (i + 1)) != -1)
/ v+ r5 p1 F* |: U2 }) I8 d5 U;;判断是否给本turtle的评价质量做出过评价的节点' _6 y% {3 U- j- {
[set note (note + item j ([credibility]of turtle (i + 1)))
7 b3 |1 i5 d+ B5 t;;*(exp (-(people - 2)))/(people - 2))]( S* c6 Y- H1 G1 o1 F
set k (k + 1)
$ F }6 ^, _! H# A4 m0 a]5 r4 K' _3 q& i' C# p$ f6 F
set j (j + 1)0 a* m" Z/ |5 u3 Y
]: J4 t* s. c2 \8 l
set note (note *(exp (- (1 / k)))/ k), W0 _. U- m0 z, a9 q* W: Y/ d6 v
set credibility-list (replace-item i credibility-list note)
( {+ E D! v7 v- Eset i (i + 1)
7 n) T+ z4 R. g% S9 b], e, ?3 l6 ~ P8 U5 I# e' a+ ?
end
5 C( J/ j3 P. r0 c+ {; B$ E" l2 Q( i; U# }5 f* l
to update-global-reputation-list
3 c9 S7 H4 }9 b2 t) K( \2 K! u- u/ ~let j 0- R& m# W% e( r Y) f, r, v6 F9 R
while[j < people]% Y/ m# @1 s# q w3 |" W
[$ e: P% ?( s. E, n8 \3 Q) j; f4 J, E
let new 01 B- C6 @( K9 ~# A6 R8 m! V
;;暂存新的一个全局声誉* N' Y. p/ I8 K3 R
let i 0
, h. e0 ?' c3 Vlet sum-money 0! X3 n5 A+ c$ b$ Q1 ]& f
let credibility-money 0( [# |- G: C' K6 C) Z4 n2 Z
while [i < people]
( x' k6 v: p6 P. ][
! q5 p+ o; F! {! t0 hset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))& p9 z- {& R! u# j9 J5 ~' V
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
4 ^9 c7 V9 d# z2 A' [set i (i + 1), Y Q5 n1 I g* ?8 U! p6 g+ M
]
2 D3 K' s2 Z& v. Y( H; D. Flet k 0
* N; f) U* G3 Z5 t! Q& [+ y! alet new1 0+ e+ Q. J$ Z+ i" k3 A
while [k < people]
5 V% l3 N" d: ?$ e[
: ~. M9 |6 `1 |8 R9 iset 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)
2 Q9 l/ }8 O. b) B! lset k (k + 1)
+ N& G; R6 E V0 []1 ~. Y: S% }2 k- Y
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
: C: C( L' D/ n7 ]" Tset global-reputation-list (replace-item j global-reputation-list new)
8 F% z! Q Q- a$ _$ W. a# } S0 Mset j (j + 1)
& C/ l: w& G4 _% k! p( \]
& z! z9 \/ |3 E! }: ^: A& p; Nend# E* H% u; q7 E' w& q6 z& I
6 j: Y. C/ o8 ?2 J7 G
3 S' ~. W" r7 Q% v
- @9 n/ b7 g4 z8 l6 |" s5 G. Zto get-color
; x( S: T7 u# d6 e+ D$ I9 h0 P. j
set color blue
% F( C5 w0 |' Tend
V( R! c# F- S4 W3 x; T# z" z8 A, s; R0 e! B+ h0 q
to poll-class
; b2 K$ ~" w7 \* A% y6 v2 Eend
' c ^, y; L( |2 y& |5 N0 L* l( R# p' l- h+ H! W' F: T7 O2 ?# ~
to setup-plot1
6 R: M) @# ^. A- g% a$ v0 v( {: E& j/ y- a
set-current-plot "Trends-of-Local-reputation"2 e$ q" _; y! i3 U+ N
/ l. }/ N% O; M7 \0 t! t; r
set-plot-x-range 0 xmax
' o: w9 d8 [1 i: L; ]9 y0 q; @/ {+ `" a' g% l
set-plot-y-range 0.0 ymax8 I( g/ X: [4 E' X; l+ L8 r. b* i* \6 X
end
! {. Q* e8 j: d4 G
0 q8 J- I( _6 i. p9 x, e3 xto setup-plot2
" |( A; t/ ^7 _3 Y! n( a
! n+ N2 i" Y# aset-current-plot "Trends-of-global-reputation" k7 K$ q" j- F" d, c6 _0 G
5 \) i2 W' W2 H7 ?: |
set-plot-x-range 0 xmax% l( v0 o) ^/ U0 Q% {
& r0 K r% ]: L- nset-plot-y-range 0.0 ymax
* s1 x, [9 c7 p# `) J# ~end
' I, N8 V9 l/ X( A0 L! Y' T- G! T) Y1 f" i
to setup-plot3. ^1 t$ ^+ X* [8 d
! G3 F) j7 |% m( ~8 Z0 qset-current-plot "Trends-of-credibility") ?' r; b2 I8 E) o# o, ?5 H
7 W) ?9 A) ~% u; A) g1 U
set-plot-x-range 0 xmax5 u3 c- c$ G" q' ^
4 D! e z$ {. D- @* }' [" {* s) K$ Nset-plot-y-range 0.0 ymax
+ g/ u) r' ]- H9 uend
. B5 [) \" ^- S# `/ R X% u5 A' @3 \ m2 J9 a& _- P
to do-plots" O0 E& B& ~1 I( [. ]
set-current-plot "Trends-of-Local-reputation") K0 }0 w) w k0 U' n
set-current-plot-pen "Honest service": p* j( u4 V- c5 v* i
end
8 F$ }1 B h, ?
$ z5 c3 ]2 P, x( ?* u' x6 J[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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