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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/ D4 A+ t# a& f+ L, a6 u! W
globals[ o; k5 \! f3 u7 r' I, n
xmax* z5 g: N# M3 _0 }
ymax
8 o: m. n. j" A4 |' Hglobal-reputation-list
# Q) }. f0 l9 [( [- y0 `
$ {( c9 N3 @6 q# _5 f;;每一个turtle的全局声誉都存在此LIST中1 q4 g# m) W m" F" g
credibility-list
8 @+ A/ G! V- I, j0 u4 p;;每一个turtle的评价可信度5 a* s5 ^1 Z: j: Z3 K* ]/ Y0 X! L3 n
honest-service6 d' P$ s/ Y i/ H
unhonest-service4 W& v' P$ w h h
oscillation3 g( d5 R! N: j w8 ~8 P4 W1 v
rand-dynamic
9 t- @/ B* F( C. x]
1 o( i' j7 h8 c) }! q2 Z9 q( U. E. ~. m6 @& l( Z) Z
turtles-own[0 d! c( v% E* ~; h
trade-record-all% a% q7 [5 ~6 c8 x9 P) w+ b. Y
;;a list of lists,由trade-record-one组成5 S2 m* Q0 B6 u& W0 P6 a
trade-record-one
8 d% v8 G C- D9 \5 Z' B;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录 o0 i7 D7 M+ q3 H& N! k
$ A" F8 e; V- w5 @8 N3 e;;[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]]
* v/ X8 P! T5 `9 |# |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]2 z; b0 l: l6 [! j7 ?* x0 ?
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list
# o# g- W/ U, E2 Wneighbor-total8 a8 n; ^3 X6 {2 X( Z
;;记录该turtle的邻居节点的数目
7 H& v# M* ~ H6 T' }( ftrade-time- N0 o" B) r! d2 p% p
;;当前发生交易的turtle的交易时间
r1 X0 j2 `) R4 [appraise-give
$ ]( v: s8 U- D) b* \;;当前发生交易时给出的评价
1 R* t8 {/ G i3 @4 lappraise-receive% H7 c) ~3 }. A; ~% B$ |2 t, j% t
;;当前发生交易时收到的评价7 y2 g& s+ N! e% |3 X. Y
appraise-time
, A: u. o$ E% y# n6 J6 n;;当前发生交易时的评价时间( ]" a1 x3 _' ?! ?/ J! v; @
local-reputation-now;;此次交易后相对于对方turtle的局部声誉) ~, y& X8 G3 Z8 z: Q
trade-times-total
/ q. @0 A5 K; H/ Z0 i6 a8 g9 }8 };;与当前turtle的交易总次数/ B. g9 p2 B7 G3 {7 k0 I$ ^
trade-money-total
, K0 I. @) h- ^8 S: {;;与当前turtle的交易总金额
5 F3 J w: w' }9 m2 F; u5 K+ Z9 p( Tlocal-reputation
) E/ `. s* m y. P+ `9 H0 yglobal-reputation
) o# s5 C0 X: ocredibility2 u. w3 _- f0 z# k$ k( |$ U% \
;;评价可信度,每次交易后都需要更新2 R1 x( n' e* d+ e( T2 Z
credibility-all6 j" |1 S8 q4 S. `8 P4 c
;;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
+ c- z1 r9 |. Z( I; H, Y+ z
/ R. a0 o; E9 }" Z: 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) M( C% |) Q9 o* k3 K7 @) `% ?
credibility-one
; \* n! J" `- h/ J8 Y0 E;;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( ^2 D7 H5 d9 p8 ]
global-proportion1 z6 t; o6 _; j
customer
! I5 T7 e1 F, Y$ z; T, ucustomer-no, \/ f8 d: x, t% _' J7 q
trust-ok
0 U$ G1 z" l* l8 D6 C9 itrade-record-one-len;;trade-record-one的长度9 ~7 R6 O6 J5 I& t5 Y$ O
]! T. k" a5 |# l' c
3 L% f! v3 o, n% n" _* r;;setup procedure
3 z# S0 `+ D4 F& t( {
) l$ @3 b' S) V. y1 U7 A( f9 ito setup
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1 |: L2 v) d; f' uca
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. v' B* x9 v$ T$ j" E% Jinitialize-settings) A4 o0 q. f k, x3 ~3 r8 ` j! \
2 |* J( |' {$ A, Q L( O
crt people [setup-turtles]
# ^5 Y3 J2 v1 s4 x, o, S
0 w9 ]: G1 K$ t+ g( r, |4 \reset-timer" q, {7 {1 t+ t! I8 U
# H. c% [& L4 Hpoll-class
^% @8 m. ]- W) }( J
" z: \: w- L/ u1 m1 Zsetup-plots
! Z. d- }, @6 U5 Q$ V, c7 l5 z: {" C; L) y* K
do-plots
+ i0 z1 K" X& R6 send
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2 d3 _ P* V8 O# S- C6 l1 ?+ f( z2 Dto initialize-settings
7 k E$ f0 {- H% c0 F& c! I1 G6 S, V: D- h4 |5 E
set global-reputation-list []
2 n1 ]8 L8 _3 X# E) d5 t, ]. C: b( W- r; d
set credibility-list n-values people [0.5]6 X! ]: n& }. E/ W
( t; ]* c# }0 x# ~7 U: Sset honest-service 0
. ~5 D8 b3 q/ u( s- W5 Z: I8 ~
4 ?' ?+ `& Q$ N/ X: Tset unhonest-service 0( n/ C; i+ S. p' C* d' B
; S3 t* Z4 G" P4 p( }set oscillation 0
! }: n* }# o; ^0 E" j T/ S/ F1 C: s ] ^+ w1 S% i
set rand-dynamic 0- n% l" ~& r3 Q# Z% c
end
0 _! h8 R% V1 O; v7 A4 Z
# x M* m- p9 [* ?7 u+ {to setup-turtles
, E0 a' |; \( Z, C: q+ ~) hset shape "person"$ ?' s# V1 u# d
setxy random-xcor random-ycor
1 X! F7 w/ a) Q, B0 k8 _set trade-record-one []
& a% M9 q) x& H- M% ~. p) n2 k0 }0 u4 X# b) s6 b* x
set trade-record-all n-values people [(list (? + 1) 0 0)] ; t" o) ]) N& y; u
/ ^: t2 _* m: I6 X% X& q! ?set trade-record-current []& w3 J) q6 Z2 g+ M
set credibility-receive []
, o" Q, D# X" J. pset local-reputation 0.5$ x3 q! Q' n" D' }. K% O" m: h
set neighbor-total 0' S7 K' y/ t5 W/ ?. g' J
set trade-times-total 00 c/ `: e) X2 s
set trade-money-total 0
( j& W2 H# W. j( }7 Z& |set customer nobody+ `& O: v$ z V) N3 f" A
set credibility-all n-values people [creat-credibility]# s$ T1 k. E; M7 l3 p; m
set credibility n-values people [-1]
6 z( k3 p( c: N/ |, e" Kget-color/ n0 f1 P m/ `5 [# ?
8 Y; ^$ Y% }9 R6 e9 ^( a
end2 E) B. ~: x3 j6 ^+ M
; A, r5 U: `" _) y. t6 F* v2 ?3 u
to-report creat-credibility: C9 W* t( L5 X# N1 ^" _# J
report n-values people [0.5]
8 E5 N W& j: v( Dend
9 W+ P4 C: u; i% ?0 i/ Z! [* W* L: V9 w
to setup-plots8 P$ U- r" F9 p; m
5 U& n5 r3 @7 S' K2 i* _0 Bset xmax 30
% C& _& T# L! g2 k9 v' x4 y1 M. } b z. s7 Y6 _
set ymax 1.0
8 ^* V0 E0 V! D3 ^! F2 l2 } l; l4 [) c) F: |( n
clear-all-plots8 z: }9 ~' ]$ `
8 ?5 Z7 _ D3 nsetup-plot1
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4 n. h5 i2 N6 n. U' \5 gsetup-plot2
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3 [0 H, c* o* m8 g3 tsetup-plot30 u {- O. M) i
end; e3 N' M$ Q! y: t
, j5 i: Y1 a5 M4 x' T7 k- `
;;run time procedures2 g; L& V( A! z, {% }
$ w2 D/ F" b! P& R9 i, Z( Kto go
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ask turtles [do-business]
) X7 d/ ^* z. E8 l _6 Z) A. ~end
. Q& _3 X5 C# H T& f7 |3 {! c9 Y6 N i v+ `* I
to do-business
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8 G1 m! x' L/ b
5 n. Z! p0 K( C1 r+ Y& Y5 j' Z8 i8 jrt random 360
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! y& y0 w3 |4 D& K0 a7 ]6 S6 ]fd 17 |8 |8 z8 N4 Z2 B: p l* q, U Q
) ~$ w/ l& w/ G( F6 x4 H: j& K- a
ifelse(other turtles-here != nobody)[& X1 E& |! f" i
7 Q8 L) D9 @% Q9 o# d
set customer one-of other turtles-here$ D8 M A' D S- T0 E
* @) d( {8 s) q1 c5 l;; set [customer] of customer myself; W! h" f; ?7 V; c
) |1 o4 G0 m0 G. r: B! K+ P4 ~1 iset [trade-record-one] of self item (([who] of customer) - 1)
: w0 [; R( x n[trade-record-all]of self
) V1 n2 D8 a# s' l8 ?3 x, k% N0 t- t;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
' ` G. X, i( y; G& q/ @/ E; K; _+ J2 M, }( n: a9 Y$ z
set [trade-record-one] of customer item (([who] of self) - 1)
3 O, H' h, `4 X$ n. c[trade-record-all]of customer
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2 o4 Y$ \7 v3 r& [2 s0 t$ Y. E6 Aset [trade-record-one-len] of self length [trade-record-one] of self
0 b2 M$ _& b% O, l. {( f7 w1 Z I
& q! r, R5 x+ jset trade-record-current( list (timer) (random money-upper-limit)), X; z" D6 D1 n; x4 Y+ \* L- y4 i1 A) s
5 I; M4 W8 [3 s2 |' Iask self [do-trust]. P+ A4 t' d1 h# q; X0 P0 U: V2 T
;;先求i对j的信任度4 j. B K. V+ ?0 u, c
8 D( y6 h. A: Zif ([trust-ok] of self)
6 [" F; O$ N( _$ i/ |; m6 s" X- Y1 a;;根据i对j的信任度来决定是否与j进行交易[1 t3 ?/ X9 ^0 i+ d7 J4 N1 B0 p4 p
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself4 ^9 X' ~4 i' I/ G, J
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[2 U6 n& O8 h; {% K
' a2 [+ Z! J# S* Z4 b. P3 sdo-trade
8 b3 k! {, e0 `) K' n7 I* |3 ?. A% |; a) }6 E( o/ @
update-credibility-ijl; Z) I+ {* b% p/ X& j4 @- I& _( W
( x& k7 k# d; y7 [5 j0 V4 [- {update-credibility-list
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0 [6 ]; x2 S# W7 ]" Q
5 G: a% N0 {. p2 q! Q+ v9 A1 u$ dupdate-global-reputation-list
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poll-class
/ ]1 [, T- e' r: B
2 B {# D- q; ]$ g+ ]7 H* f: Bget-color4 u+ f$ X* g, u$ T" @2 }
% v0 U% v$ h; }9 ]8 M: H
]]
" ]4 a/ z/ |# m* Q( V" J: Q' H6 C
$ `: J8 J+ ?5 ~/ `;;如果所得的信任度满足条件,则进行交易+ b+ p3 R" W. P6 K
* `. b0 X S% c6 D9 u& e& q4 L% S
[
% `2 S) K# a5 f" g) J0 p) a) L" E7 l. H' X
rt random 360
& K7 r8 S0 G) g/ g4 C7 r4 v- z+ m' _+ A1 u2 Q$ j# }+ B8 |$ Z9 k
fd 17 G; z) \0 K1 X+ h" Z1 r8 E2 ^
- K4 h" x: G" [- O4 n% I- I: _]* x7 R, c- {& e/ d
1 p9 L# L. ^8 r1 C4 C5 [. T! dend$ r# \" m8 J4 T, R, I2 g- {5 Q
1 Z( [$ F5 D9 a Z% S3 u' z1 t; p
to do-trust 2 V% V$ n( @: g" o
set trust-ok False4 M5 E8 [2 Z0 ~/ U+ x A- y7 F
/ n! T: r0 e2 V0 v0 c: F) ~: M* V+ W/ V. \3 m
let max-trade-times 0
: r F' d/ F6 \. j& L7 @7 r) E; i qforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
% O( I6 ~9 ~( Y& H" E& Ilet max-trade-money 0
6 X& _8 ~. U% Aforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 T& ]5 S4 V; y6 x* L E2 s1 l1 g- m
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 W3 n5 }8 q2 k1 ]
- B: f' J- m" e$ }' E6 S
( U, |& l' W; h) P5 ]6 kget-global-proportion8 `& [' c# ~) Q- b1 g: \
let trust-value$ F/ n: R' f7 [( h d
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)
: S* q) ` T# ]% o$ T1 K! Dif(trust-value > trade-trust-value)' C# {8 s, n2 O9 Z# O0 A1 c
[set trust-ok true]
V1 L6 V5 k& U, b( Qend
% g: M) Z' A1 @7 s3 P2 _
3 T0 F; m# ]/ r0 lto get-global-proportion
* {, D- P( W% J/ u) C, M0 {ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)$ L" I6 i( d4 B+ b( O9 J( X9 q
[set global-proportion 0]
E. j7 e$ I' |7 [$ R" H[let i 0
/ J5 G3 u3 k; J# t1 flet sum-money 0
! j/ A$ r" r6 X' uwhile[ i < people]
0 t3 R; E2 W. U# R1 w, O[
, U# o$ c+ l9 Iif( length (item i
0 R' p+ h$ r7 H' v1 k7 g$ g( j9 u+ _[trade-record-all] of customer) > 3 )
% X" [; T, ~6 D, ~. z: _1 p[
4 J' G/ W) j) p+ P+ m& k1 hset sum-money (sum-money + item 2(item i [trade-record-all] of myself))" a/ l9 e6 R" g
]$ s& B: Z2 W8 m. N; K& u
]
: s* f- A1 @- y6 elet j 0
2 R# g1 p% @$ {let note 0; ?3 I& _: u( [5 J! @, B8 {, c a
while[ j < people]2 J0 X% i+ {; ]6 H
[
0 ~7 B- M, p1 e- C; Sif( length (item i2 r# v% E1 L' U \6 b. \
[trade-record-all] of customer) > 3 )) ]& ?7 T1 E- q. o$ q, @4 t, K
[: Z/ b+ y+ @/ C7 f' `2 R
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
0 ]- l$ u" f! L ?[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 C; a. O( ^* J0 ]5 e$ g' d9 T- A
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 O# L8 z4 `0 [+ p
]$ l1 ]% E0 W4 |* @& \% z1 z
]
% O1 M$ F3 q9 Wset global-proportion note! @4 _" L/ x7 b5 [
]
8 W! \2 U5 r3 i+ `end
# t O* X/ M/ Z5 S0 G; q7 X
/ a0 [' m) M& Q) e+ _5 ato do-trade
" }$ S& d D% v9 X- R5 j: Q;;这个过程实际上是给双方作出评价的过程& H! \+ P- _) y6 e- H+ I& P0 i' ?
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
" @# c! \8 U. H) H7 Nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
3 C0 C9 O& S+ ?: {* T# H# \set trade-record-current lput(timer) trade-record-current
' r/ _; }# f5 N;;评价时间
. J2 n/ _1 c' Xask myself [5 L, W* M& T5 ~
update-local-reputation
) H7 T; g) T$ k* X0 Oset trade-record-current lput([local-reputation] of myself) trade-record-current
9 Y! y9 M' q9 n] U7 }9 p; S9 t: O9 V$ J/ B
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 n7 N/ p; }4 N9 G. o7 h9 Q$ v3 u;;将此次交易的记录加入到trade-record-one中3 Q0 A- ?: ~+ }6 a
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)% ]" S; a% V; A8 Q3 r) M% N5 A
let note (item 2 trade-record-current )
. o! N8 o" h! b0 L# r' y" rset trade-record-current* s; |, X; m* X0 ?
(replace-item 2 trade-record-current (item 3 trade-record-current))
# h% R$ N5 e$ M! Cset trade-record-current3 X+ M$ ~ e% I2 Q
(replace-item 3 trade-record-current note)
% X* V( p$ i; g" J$ O5 e6 d; s7 Q3 U# K n: F$ C! i1 O
& \8 ]$ f6 L6 k4 e
ask customer [
# }: E5 ]7 ^. s1 Kupdate-local-reputation7 f& t( x7 ]$ M2 K1 D+ r
set trade-record-current
4 j0 O' @5 n+ X* t/ }1 h, A(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 0 T5 [/ {( c9 s
]( E/ Q9 t. X% `$ h1 C
$ Y# r4 {+ K, V8 {1 U. D# ?
* _# \: x9 U# s% A" oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
* F8 C Y, K6 Q2 `' o$ {0 t
* n4 O$ _8 x. t- Q, R$ G" }set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))+ Q% G) a( Z. a+ R z
;;将此次交易的记录加入到customer的trade-record-all中
6 o% S, p, P& w B/ s- T; F/ Nend2 k6 X& T7 I( Z
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to update-local-reputation6 s7 l4 A9 s8 Y5 v9 @: p
set [trade-record-one-len] of myself length [trade-record-one] of myself
) s* L7 z d) j1 u/ @; ]
8 q2 a$ w8 J ?' d/ x( ?* X/ @( c7 F* {* n% P7 X* v7 ~
;;if [trade-record-one-len] of myself > 3
* Y8 R. {- w" `0 e9 S5 dupdate-neighbor-total
8 {" C0 X; i$ x, w; F1 e+ r; e& k;;更新邻居节点的数目,在此进行' k' T: p2 z* @7 a' j. C9 f
let i 3$ ~0 z# w6 P% v* N! V% e
let sum-time 0
, q: o7 D% d; `2 v6 V7 `while[i < [trade-record-one-len] of myself]2 Q& A5 E3 e8 x3 g8 T) k% g+ n
[( F2 C; @ F9 j2 O
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 `) o: S- M8 w0 |
set i
. z! F8 [3 \; E( i + 1)
\0 v6 T" F( o a+ X( x4 []
/ v- w; L4 w- R" P; s: `let j 3) ^+ r! P4 T0 e8 X
let sum-money 0
- T0 Z& B$ i( G& f7 Gwhile[j < [trade-record-one-len] of myself]7 F( M5 i) g& ]6 f1 J: o
[! M$ y j& Q2 d5 ^7 X# u
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)
& u+ x3 i: r4 H7 Z( ]4 L, Gset j
. I" o$ Z& B) z- [) k: |2 J# P( j + 1)" u, B1 e0 ~* e' @+ i; f+ k8 A3 h( A
]
2 ]* s: N) Y! V. L# h% `7 xlet k 3
9 H+ Z m7 S7 o. ]# Flet power 0( g# a6 l4 ?; x- y! i! N( M$ c
let local 0) ?5 w) D6 w; c$ N( D* }) m
while [k <[trade-record-one-len] of myself]
9 Z0 ^ s# B- p/ i5 N[
& a' y, [/ g# tset 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 a0 E- S: f* J7 Xset k (k + 1)5 {8 X8 D, S6 U. y8 q- n
]
~; u5 Y/ R6 X8 O/ h# @set [local-reputation] of myself (local)
+ Y9 g; _; y5 |! ^end3 b9 t6 X1 O6 i& q1 T# p
8 n3 x( j, q5 G7 ~
to update-neighbor-total* o9 ~0 `) `; ^( t* w
% }/ J. d2 N" X
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]% d8 d% @. e4 a3 L/ b
) |$ M& N8 g( K: O: O
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end
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to update-credibility-ijl
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- Y" f+ w: X3 D. R1 |, V;;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。
# X; o' j5 f# E6 |3 _4 J3 T! c% slet l 0! I3 i+ C& k! ^, @
while[ l < people ]
8 ?+ Z! L5 s. u2 }% C5 A4 w;;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5 v R( L: h. |+ {* C8 \
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
' \) G# Z1 F) a- M: Lif (trade-record-one-j-l-len > 3)
2 e/ o! @+ y; V. M E' }; P[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
8 f& \0 N7 o+ X' Dlet i 3
7 T( P; n( |& \ k9 @. s8 Z% }4 o5 |let sum-time 0' |7 [# B0 C) V& ^) [) R9 m D0 q
while[i < trade-record-one-len]
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, {( O1 o3 n1 S' [$ Jset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ p1 t. ^/ t4 Tset i
9 {& u' x5 U* n& S1 c( i + 1)% y" ?& `1 D! j* h9 E
]
- K" G# u! u7 }1 Ulet credibility-i-j-l 0' @6 Y' S' C. ~+ H2 p3 d
;;i评价(j对jl的评价)$ f9 b* V$ q: x1 ?
let j 3
2 Q) w; }1 z/ _3 o" P2 mlet k 4- q. n; Q* f: c7 L4 g
while[j < trade-record-one-len]) H0 ^( _& J4 x9 N* m/ W6 j4 q, w8 H
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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
' H) K8 T! ?6 Aset 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)
; K" F1 n `6 H7 x" W: rset j' K5 p* A( @, _) f. V( r
( j + 1)5 H5 U5 `$ l; L$ _2 K
]4 ^; _- f8 z `% e( l
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 ))
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))+ ~ T/ n8 w2 p' M* V% y. G
;;及时更新i对l的评价质量的评价4 Q4 n+ y, O0 q+ l
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
" \0 W# |% v3 |+ _set l (l + 1)) r1 K7 h7 t& v" t5 ]/ A. q% Z' h
]+ |6 H2 {) h9 h! L5 P! c" t
end8 f4 I* E$ g* N8 {4 f, G
2 i1 N9 C( c2 w0 z& Y. l; S( x9 fto update-credibility-list
9 z3 V* ]6 i7 M& _let i 0
$ F6 B7 [4 j4 I$ D% Ywhile[i < people]
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let j 0# f8 j1 w7 w' c) T8 l, o( `
let note 0& E/ _' m6 E2 m9 g0 e
let k 0) {' z2 |4 D1 n. z8 a1 b" v) q
;;计作出过评价的邻居节点的数目0 V. l' F; |8 T
while[j < people]
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if (item j( [credibility] of turtle (i + 1)) != -1)
. n& W1 b4 [. d& O8 H1 B;;判断是否给本turtle的评价质量做出过评价的节点
8 J3 n8 a- w' r6 c1 j D' v[set note (note + item j ([credibility]of turtle (i + 1)))- b: a! [3 y& ]9 }% u8 X( X/ A
;;*(exp (-(people - 2)))/(people - 2))]+ _* s: D/ z# s" r: v
set k (k + 1)
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2 _, T4 [/ ]0 H4 J4 n% Aset j (j + 1)' |+ H3 s+ d% P, {0 @! A$ |
]
k+ J' Q0 \: U6 U+ eset note (note *(exp (- (1 / k)))/ k)
q7 @; `* D: {) b. }8 ^2 [- q* I1 uset credibility-list (replace-item i credibility-list note)
T4 v& U+ b; @: x- u+ z) A' Q! }8 hset i (i + 1)3 S- Z+ v) X) N3 E5 f f- Y: R; \
]
# N% M5 `( K; E4 N6 ]$ n" oend" x$ M3 k% ] G+ d, i/ `5 A) H2 @0 y
0 P- S) b7 r2 T! nto update-global-reputation-list% }: S! l/ x- e9 F9 [
let j 02 z- a; w. K w( I1 h) ^- U
while[j < people]* U- g8 n3 }! w* `: s% _7 u- B
[
9 C7 Y g5 u5 N1 H8 v5 klet new 0
" e. l! n' D3 W5 o1 A;;暂存新的一个全局声誉
$ e) C5 E4 ]/ ]let i 07 C y2 q4 n; ?6 B
let sum-money 0
5 k. i8 T6 k D) N- Jlet credibility-money 07 X5 E- O9 z5 |1 t' | Q2 Y9 E
while [i < people]# `& j4 p& I8 E1 W" u
[( u" a: Z" G; G0 @- ~3 u2 J" I _
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
. Z$ ?# y( {: p7 D! s# Z, W4 \set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))* a$ E. @% a+ G. D2 ]
set i (i + 1)
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let k 0
! H$ V" J1 e/ flet new1 0
' c2 Z. h3 l2 h9 A$ b. C& H( p& jwhile [k < people]
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# r/ |7 \ X# p/ `" 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)* f4 N* ~- ]1 H0 U! i. r" Y
set k (k + 1)9 I S8 j7 C9 {' f8 C7 S
]( k) w9 ?6 e( f: p- U" q
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
" l( M5 l4 G ~& ^set global-reputation-list (replace-item j global-reputation-list new)
" i3 }. y) T, l' ]; }0 Xset j (j + 1)% r# X0 ^4 D7 x/ v8 W
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end
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3 P) U. [; g0 [+ kto get-color T: d. a* @) {
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set color blue5 K, ], T6 _: _: H% h5 B
end
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( [, y! b% |5 zto poll-class
/ A, V4 T+ {, z8 [% k: kend
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to setup-plot1
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set-current-plot "Trends-of-Local-reputation"" k8 R) O5 z R C$ j4 j: N! ~+ @% `
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set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax
8 U: N/ T0 M# T8 b' Xend
; [* b7 y% K4 v5 h
: C3 U6 Y! w2 k. eto setup-plot2
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) ?, f. T! q: p wset-current-plot "Trends-of-global-reputation"
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: e0 Y: ?6 ^# ^9 q; I" sset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax7 V V! T) _1 f- x
end( P J9 L$ ~$ Y: x9 t2 i
' j! e8 d9 Y+ O, C( A( I% Gto setup-plot3- J: a+ \+ e( J4 E& U& A5 j' r4 S
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set-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax+ P& l! r' R; |2 ?7 i; O5 L
+ R& M, i% J7 M% x- b1 _set-plot-y-range 0.0 ymax9 k6 {9 d* l" U+ ]) K. c
end
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, b. T: y9 v' }7 k8 ito do-plots- ]* x+ B5 G$ l* L, _3 [6 _
set-current-plot "Trends-of-Local-reputation"1 Z) k$ @( I0 k# e4 q# D) j( [
set-current-plot-pen "Honest service"" J7 j9 j, `9 _4 D$ n) h2 G
end: _& }4 G7 Z7 I! C
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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