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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 Y# {9 H& x% }' h
globals[7 J* w) l! ?4 H. s1 k% f. ]
xmax
/ S- h- \! X% G" f5 J( symax
2 n% I7 H8 {5 `/ ?: S* g2 cglobal-reputation-list; [8 @- R6 ?5 j% t# u
) D$ |5 L H# e5 o& e;;每一个turtle的全局声誉都存在此LIST中
! ~5 W0 F$ n8 K: ~/ E7 G* l0 S& }credibility-list
/ ~% R2 G$ F: x% P;;每一个turtle的评价可信度. O9 ]5 P. V+ l3 o% w4 w9 C
honest-service
0 P) [- M$ N4 Y; tunhonest-service
0 C. g6 n! E+ T1 C) xoscillation
* h5 Y) c* N/ `rand-dynamic
+ |. ]: u- q8 V( y% ]8 P( Q]! f+ X) L* k7 D) p7 S, H T
1 d0 P$ u, q$ N8 }, X; F6 uturtles-own[
S' p4 I$ ]6 |2 l8 D. Z4 P" Strade-record-all; n3 q$ ^: v7 V1 m: e
;;a list of lists,由trade-record-one组成# o- y0 Y: Z; B( x" Z9 g8 d Z
trade-record-one
0 J$ V. h n H4 g2 P;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
$ F0 B( \6 v( W% ^8 ?- x4 F: s6 J! _7 |
;;[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]]% J. s; {& \+ n9 j8 @2 i! K6 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]) G# i W: z8 R2 Z- F& V' n4 ^
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list6 ]0 ~4 P# o9 W Z2 P
neighbor-total. v4 ?" {9 O& K" e
;;记录该turtle的邻居节点的数目
2 B3 @: K Q9 D( ^) d* Q. Ctrade-time; Y/ D$ b; U. z
;;当前发生交易的turtle的交易时间
4 J" W4 I+ s2 k6 ~' G* F# Fappraise-give
4 C) B5 V5 F1 M6 [4 ^;;当前发生交易时给出的评价
0 r3 \+ l1 ^, ^5 m, v+ e3 p. Gappraise-receive
3 T3 O, a! F: Z4 m" u `7 S% X, {;;当前发生交易时收到的评价% [) q/ ]6 s' c4 ~" v% x
appraise-time. x: p G8 ]# c4 Q
;;当前发生交易时的评价时间 J- Y+ j: _: y. v6 s/ ?. e
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
! a6 ^' A- l1 i6 wtrade-times-total
0 v6 L3 U6 ?4 L;;与当前turtle的交易总次数
# S" u/ F5 Z0 Q! p f8 o6 qtrade-money-total
. ~: ~+ ^$ s7 ]+ f. r;;与当前turtle的交易总金额
9 V) h: s( l4 f9 Y& _6 Clocal-reputation
$ k2 ~7 D; H9 N1 P2 X' d1 Qglobal-reputation# v5 j1 |. M+ p# r; c) z8 O
credibility# ~6 H' p/ S$ [5 r! R7 P8 w3 `
;;评价可信度,每次交易后都需要更新( D% v! n4 ^. Y
credibility-all
+ `6 |8 r7 {" T& L4 i3 B |7 g;;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: p# X% U! F6 a
% E6 V( {1 z0 u' U9 f# h;;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
/ Q b, I2 o$ ?credibility-one2 \7 ^0 ~# b0 b) A5 L1 l
;;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9 D' {5 B, D8 z( Z+ G
global-proportion
2 y7 Y: y2 S# _# b- e9 \1 c8 {5 Wcustomer! B* e; {& d! y1 I3 A
customer-no
/ D+ c/ {" x& |* x6 u( V& Ntrust-ok* u5 ^, W; n* N0 x9 Y5 p
trade-record-one-len;;trade-record-one的长度
9 B) f, M, n$ K, V. x] K0 O- a6 n; M; Y2 l
2 A0 }& r6 j1 a6 \
;;setup procedure- R( m8 }( Q0 f9 h. x3 l6 w% ]
3 |' F; b/ b: e+ l* ^3 i8 t
to setup
0 t; C3 C J% @! T
4 m# @; w8 i" k; S, Rca
' b# u$ \% C. p) l' c
& c) R+ u+ ~& Pinitialize-settings
- e Q" A/ u* \- b# q' {
- d8 q) ?0 X5 w) t* o2 b% Wcrt people [setup-turtles]0 j% E3 S% V# z# X$ H( w. j
( F% Z8 V3 o' A9 sreset-timer
) O P2 \! U ^6 }/ B! U/ `' }4 U
poll-class
6 p9 G" z8 c+ `7 I
" ~1 {% p; ?5 v: t: T/ ?7 Zsetup-plots
: k1 v! `7 U/ e4 K0 \3 @! y, P/ `
! h' w& U+ J/ o0 a- v( a$ O1 ddo-plots. v3 |8 @( I* Q5 S: M4 X* D8 g' ~
end& J- m, J& E* {
* J3 z4 c$ y" e& N' `& R4 uto initialize-settings* G! }0 F2 k1 K) P2 V- m. b* m
8 N2 b- v; {9 P" G+ {7 r
set global-reputation-list []
1 u" A6 n0 A: {6 Y0 l* T5 @" ~+ E# p. F/ F1 v
set credibility-list n-values people [0.5]8 @$ s$ V0 t' N, E# |8 W! A
8 v& S. {5 B) p8 n# }1 D% G0 \& S
set honest-service 03 ^9 M7 E: e* t8 w0 Q5 G& S
V" Y& q. h2 k, f% _1 r. uset unhonest-service 0
5 D/ _" R8 W% r" E7 M* }1 ^
3 ?3 }9 p9 d! H6 N! Z' I$ sset oscillation 0
' ~3 K% l' W- W6 B. h2 {! L$ r9 q( O/ D. K0 j
set rand-dynamic 05 Y7 a F2 i9 W5 S- M0 N* ^! o; u
end1 M" U8 h7 P+ t0 A/ Q& ]! H
/ B( H/ {7 C" I; k2 G$ K$ B, pto setup-turtles
, }( k9 i! |! }' J W& J" n7 I4 h( lset shape "person"
/ c2 B% C) ?0 L6 |setxy random-xcor random-ycor
: J# m' o; w+ Y C9 ^0 uset trade-record-one []: ?1 M$ z4 F8 X, ]# z, @% {/ e
1 F d& ~: B3 g3 L2 p
set trade-record-all n-values people [(list (? + 1) 0 0)] # N5 a r" ^7 }# t
6 a8 A2 ? d, K% |set trade-record-current []
& x1 _! H( a% m& r3 Bset credibility-receive []; z, f2 Y" |+ B8 V9 P& o& \# x- v
set local-reputation 0.5' O, s; }) L0 B
set neighbor-total 0
; a$ `$ T! ], {/ S6 Qset trade-times-total 0
5 x8 W/ m$ H$ ~set trade-money-total 0
) Z1 Y8 J+ Y- V. Y4 C( [set customer nobody4 d& D/ J( J: m/ r
set credibility-all n-values people [creat-credibility]2 i: p5 }8 e0 B
set credibility n-values people [-1]
( ~" j" q5 [5 V, `' _% wget-color
, j0 h6 _6 b# o& c6 V9 N: D2 ~# Q9 g) Z: z0 t
end
0 d7 a, A% ?) ~% q. d# T
; W; u+ j# _' R2 I: Fto-report creat-credibility4 s6 H# {6 q1 A8 J1 }7 Q; ~
report n-values people [0.5]- j, x4 b8 ~- [% j8 ^
end
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to setup-plots
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8 Z- f+ t: p8 B$ M. zset xmax 30
3 t+ W3 A' B6 h& m6 G
% ?6 D& ^+ U+ | J+ b* N& }) Pset ymax 1.0* {0 x) ?$ W1 T! I
; E" N1 V" {" ]8 X) x, cclear-all-plots1 E1 @7 P% q# y' H) q
8 k9 g, J, w2 n, a: z$ ksetup-plot1
# U& S$ k# H5 [4 [
& G( ], ]# w% K( k9 ]( E9 asetup-plot27 C" E3 Q5 c$ Y# }
; `: P: \6 d3 ?9 d, e7 Bsetup-plot3
5 R! P1 g6 C. O" U" }2 w* Fend
4 Z6 q6 f) n1 T' r: i, B
% y( ]% Y1 N6 b5 `1 S9 g6 c0 u;;run time procedures" X$ A9 r/ v) T5 t9 H( E) V: N9 ^
2 [' F# W1 \# g' D3 ato go
- l6 o V$ Q- a) Z. W! E) [
" | n- S$ q8 S" Jask turtles [do-business]2 y" M B( k( E. u6 f+ K$ A
end0 h( ]9 f4 t9 m# V& L* \ I3 f
7 t7 }! Z- ~" p; {3 o5 w
to do-business ! t) E' G6 T! @2 d# ^
! ^7 b9 @$ ]8 q `7 o- [+ @
) F" A$ C8 q9 F: M0 q* x+ irt random 360
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fd 1) p- G, q9 L/ E$ R9 d6 n$ Q
7 L Z8 z- o- v, z: Xifelse(other turtles-here != nobody)[
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0 o( s# D# D' G2 {: ` Zset customer one-of other turtles-here
8 v' i% R6 I* r) @" A" r; H/ ]3 \8 f8 G; V( }' h9 |
;; set [customer] of customer myself( K1 ^6 P# k3 n* G. M
) ?% P$ j* l2 ?; [
set [trade-record-one] of self item (([who] of customer) - 1)
* C1 {; h* U# Y: t[trade-record-all]of self1 p, ^0 W3 X" p, k' S
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self6 o2 m& c3 o8 o8 K" p* I, b6 _( a
1 U/ M) {% y- ~* ]% N N
set [trade-record-one] of customer item (([who] of self) - 1)
, H6 `$ s0 M" d[trade-record-all]of customer( U# ~! |- _* \- m. s: I
& ^; A$ n: h+ k( C& O' xset [trade-record-one-len] of self length [trade-record-one] of self2 P( R0 m& x; Y" X, X3 @
, J9 b! V, B' J% U- b7 o3 R2 K% Vset trade-record-current( list (timer) (random money-upper-limit))* M9 n8 k, o; [0 f( @3 [
; s }6 v- V) s8 k# l1 ?' c3 bask self [do-trust]
3 q7 \( Y+ Y) e N2 k( J' e9 h;;先求i对j的信任度
1 }/ m3 z7 S8 Z! ~2 o& U: r
* m) F& P; i+ O! Yif ([trust-ok] of self)# D6 \4 B6 i& O* Y, h2 }2 Q! J
;;根据i对j的信任度来决定是否与j进行交易[
; m+ U* y; s- ^8 l$ ]ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself- p, D& u9 H, }5 n" Q; s
$ I4 `7 @8 K8 ?[5 v1 z4 c3 o) h3 I
& G5 U; E- I4 Z, {3 r( o/ {do-trade3 L- A, {$ J2 R
% F) e1 ]/ \/ ?7 ]) yupdate-credibility-ijl; A) v; Q3 W1 p k1 [, z# [" T
j" M4 M' C zupdate-credibility-list
$ `# a" c' l" Y# n
6 ^# r5 e9 Z6 ^7 R. V+ a2 d8 O: O
update-global-reputation-list
7 x" N0 e6 I# v7 f6 q) y5 V9 x/ C# E3 C. e- I: s
poll-class5 c% U; s$ P8 Q; O
9 Y# ^2 G. }# K7 J' k3 o/ zget-color
( L" |! i e) K' l" v* i2 O& B0 m1 }
]]
( j2 `/ A, Q: z& Y+ H6 d u P( Z( Z" _
;;如果所得的信任度满足条件,则进行交易0 |" D% {* c, B6 D5 f% f9 z' T
2 h' e. a5 T8 q4 t- w, U% U
[
$ C/ n% o. R3 \' ^& d k& N
$ C& J. m% }) z' o$ ^rt random 360( M' d: }% W+ B+ d7 D
5 S7 o) p7 P: Bfd 1
4 y, m3 ~" ^( {& q7 O- e7 u
; W) }0 Z7 j7 |- V5 ?" ~+ l/ E]
( t g& ], L7 u b: y- D4 D4 T3 c* }
end
& {1 x& b8 W; X& p0 F" a- b) J6 z, d$ N+ w5 m
to do-trust k3 Q& e# j$ K. c
set trust-ok False
* x; X$ [& H5 X9 l, B$ z' [5 Q5 L' Z% |0 X4 q; ^9 [& O
) L }' E: l0 Flet max-trade-times 07 g! ~/ {$ i( A$ I
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]* E# N/ U. C( c) G# s
let max-trade-money 00 Y# ?9 u6 V7 J f+ O4 o/ }
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
6 p9 ^! |. } u4 ?( Flet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)), n* u! O! M% {
`- M: E, q& [0 M8 t: i M/ u- ~* y# I. M7 _ n' B2 K3 {4 J
get-global-proportion( n. x+ y+ ]2 f5 S: D6 ~+ [
let trust-value3 r1 p4 } |8 U7 }/ ` J
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)
. W, t/ g, c' ]$ Qif(trust-value > trade-trust-value)( ~+ h% C7 e+ U9 |
[set trust-ok true]7 T- b% K! c6 u4 T, p1 T2 j
end
. a# H% m( `/ {% \: l5 k' {# @5 s" D; x# z6 y
to get-global-proportion
5 D8 @7 N* b5 p' w8 V% T7 w' T9 ~ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
: j1 j ~8 e* N$ U$ A[set global-proportion 0]7 U# A( y6 a5 { J% d
[let i 0! F( j( v9 J7 n- X* \' n
let sum-money 0
, H- G4 }; o; t1 w$ w6 k/ t0 fwhile[ i < people]
' k* P' Q7 i$ }9 F[ o! X& ?5 P7 ^, d
if( length (item i( i1 g2 A9 R' e. `* {& X
[trade-record-all] of customer) > 3 )5 U: |+ s' t! c0 Y5 c
[. V0 z) i2 C) ]1 K& N
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)), _! W; g$ x. O- s
]. Q) q& i# r4 P8 f( Y; N/ q* C1 p* ~ L9 }
]
' F2 s- S3 r6 n3 h" J5 nlet j 0. r0 g: ^: V. c4 P3 U; V2 }0 {
let note 0& D1 A& }4 O; _
while[ j < people]3 G+ p# Z Q# {5 {$ | t
[
6 @, Q! `% e/ U. [( a) Hif( length (item i
0 h) V: R+ d# L6 }6 x2 n[trade-record-all] of customer) > 3 )! [8 f4 x% C, i
[
l* b% y! _% W: f* Y8 Zifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)% V: D$ O+ y1 {! e. a7 @! {: B! c
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 k2 q/ F2 _+ }4 S
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
* W. E! s, s M* z]
! ?8 Z9 J' f! g+ f& s]
+ j- D( l# M& _& O9 A: |$ l7 A5 Dset global-proportion note
% w( J% W; k+ i# q]8 Z' k2 I! @5 u9 b0 t/ B
end
! [- a: M; W2 l: h1 @- h5 s/ m+ O8 z
* J# E4 R$ z5 B' W* D: z6 T; s, ~to do-trade
1 _% p8 T5 Z; [8 q0 |7 c, F |* J. H;;这个过程实际上是给双方作出评价的过程
6 ?/ W! P+ _2 ?3 Hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
3 k3 F# [3 M4 B6 R3 G3 iset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
# O1 y' ~9 I* y! V) ]set trade-record-current lput(timer) trade-record-current1 E3 X7 r# c( s3 b4 q0 ]9 Y! J
;;评价时间' D2 g; M( C4 s
ask myself [
- @/ M, t( [. @9 |3 B/ wupdate-local-reputation4 I4 {0 Q% n' } t1 b2 F
set trade-record-current lput([local-reputation] of myself) trade-record-current) H: H; c/ i+ G: p% j
]. ?* D1 f- o! V' r
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
. i7 _0 ?, ?" W. X;;将此次交易的记录加入到trade-record-one中5 ~$ y/ F! c# y8 a3 G
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)& p# b/ b8 I: l: h5 Z: b: ?
let note (item 2 trade-record-current )
; X1 ]) e4 S- n3 ]( B$ Z% J3 Q& yset trade-record-current x, Y/ f3 @' ?$ D4 c
(replace-item 2 trade-record-current (item 3 trade-record-current))
. Z1 o/ L, N' D2 Z7 o( Kset trade-record-current& e! O$ K# H b& I; Y' f% s9 \
(replace-item 3 trade-record-current note)6 W* B# \& m: C3 ^
9 M. p4 r6 v" c. c* n+ @0 e& y
2 a8 b p$ h, Z7 e; Jask customer [
) U& a, x/ j- x& d: L* ]update-local-reputation8 P) Z% }) W$ r; S8 t o/ m
set trade-record-current& k- h' c8 w' N1 b9 }( H
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 7 a T- F- E$ k
]
5 D/ `! N& |; _2 w. U/ B% B- O6 F9 x: B/ s
0 a* `* ~) c# A r6 B3 |0 ?8 @- u2 z8 o
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 |6 f. g& x% x+ O
. \# W- j8 r& T* @) v
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
, ?, N3 s1 L& ~2 n3 T" J* v;;将此次交易的记录加入到customer的trade-record-all中, i, N( A6 z6 h. x* a. c
end. W8 L: t: }; k, g
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to update-local-reputation3 D ^0 {/ k1 m& O* W& X
set [trade-record-one-len] of myself length [trade-record-one] of myself* o4 \5 ]4 q. S
) j0 x; q+ o2 n3 S+ Y8 g8 M1 _8 i
+ C) x$ d. c: x2 _# Z( a; h;;if [trade-record-one-len] of myself > 3 + v0 O/ v# m1 J" I i7 n
update-neighbor-total
' q+ L |) S3 g4 b: | v# z Z;;更新邻居节点的数目,在此进行
6 V7 ^/ o6 P- P# Ylet i 3) l% V0 z6 u1 b& _$ ]
let sum-time 0, z3 h; S: @# l
while[i < [trade-record-one-len] of myself]
+ k1 e( T. K0 c- E2 ?% I8 v[
$ z, [7 t: c' ^2 K3 m, Cset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 s8 s2 Q4 @0 I# _0 {
set i
5 Q2 c: p- s- P. j S; [- Y" z( i + 1)& o+ }" e g1 w( V- J3 _% v3 L
]( Y' K; K# ~6 a: r1 d }- w2 e( b& @
let j 3
, K6 M. K4 S& _! M. H8 G, a; Jlet sum-money 0
& ^$ ^5 }& F$ W1 o: h8 q: ]while[j < [trade-record-one-len] of myself]; G5 _) F. P* ~+ V8 l
[( |# _# x. F% a/ o; E% 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)2 M+ d8 g* B5 T: |
set j# J! q( Q1 _" n7 h% o6 t7 O
( j + 1)
) _9 R& x: {" A& m) ^* [( L- ~]- K( ?- Q7 n0 P) w+ [
let k 3$ ]8 K$ a4 |5 O; w" n( I, Z
let power 07 N5 n$ a- X" q; n! K7 \6 K
let local 0
# ?; v- v8 ]/ b! V$ nwhile [k <[trade-record-one-len] of myself]) l# S/ u8 M8 P" ]
[$ ]+ y$ U( W7 B* k5 G# H
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 C* @' F6 y4 W) r, u! y
set k (k + 1)
2 E Q; l5 ? X$ `8 [( W4 b3 m]; F& w0 t6 ]- E/ o. y. k3 ?7 y
set [local-reputation] of myself (local)
6 ?) J, E! M |9 ?& ^. g' [end
+ o t) O5 b) B0 m+ B6 @9 c a6 `: d* G' k. l
to update-neighbor-total; }- G, M0 ^6 k5 t$ o
* V" O7 S( [6 `0 C8 r( L
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
! E/ h6 X3 p. ]; V+ \6 s
+ D, |( e: @9 ?
/ t1 r0 N. q$ l; ?* C; d- aend: B3 N3 r- J& e3 c# C% ^
2 S& W$ p5 t8 f8 C3 L/ z. Yto update-credibility-ijl . v; c$ p( H/ Z
5 n* h0 n! w/ h4 i! h0 q* _, z. U; t;;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。5 w/ [: X! q( N6 d
let l 0; x; e2 |% L' t) Q+ f
while[ l < people ]
6 \( [6 ~1 e- H( C s6 {, ~( |+ i;;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: ^2 }2 T0 @$ a7 W3 L
[8 U+ X# O4 u7 Y5 Z
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)8 I, T3 _& H8 V; P. L# n- A' M
if (trade-record-one-j-l-len > 3)
( f/ [: k) A9 b+ O8 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
+ K+ U/ F) ?2 v elet i 3
3 @) I, B- Q! w% K9 P$ r3 g* e$ zlet sum-time 0
2 O' ]! |! x, T) s4 U1 {1 uwhile[i < trade-record-one-len]& w" |6 E( W" }6 ^# `0 `8 k! e
[9 w% m! O% ^, R
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), O6 n% L9 x! Z0 L: Y# S' L3 y
set i! W2 |' s7 a% E1 `' o }
( i + 1). L5 \4 d1 V- h
]
/ o( }& Z q1 flet credibility-i-j-l 0) [" | Z' S/ B
;;i评价(j对jl的评价)
# o7 V" @: B$ g. P c" G; T$ Olet j 3
7 ^% `, i$ Q! Olet k 4. F5 a* A: p9 S/ g4 K. [
while[j < trade-record-one-len]
* X3 P: \# q/ G4 ?( ^[7 W0 r7 |- S: _1 r0 o4 k( U
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
5 {) F9 s$ U: o: x; d6 Tset 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)
! E8 L# f( k2 Q; sset j' E9 U$ B" {$ ^* J8 h1 o h7 B, i4 E
( j + 1), G3 P6 ]% @: e+ R* L. C/ _
]
! s2 Z: U# i, J7 |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 ))- `, [8 Q, ^! ~6 e( J" G
! |5 ?5 o# p7 b0 R9 y. N' g: {! k& @2 l2 P/ X! B: u4 p+ `+ `
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))6 R; b' c' h+ l: S* P
;;及时更新i对l的评价质量的评价! k2 e5 k7 g7 U* q; J; z
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
! Z8 c* U. b6 I8 O/ q* yset l (l + 1)
" D) g% r3 O5 n; E8 T" G]
* t/ W' E- F) F' i' e1 |3 Send
% B" ^7 a$ Q& j' ]0 J- X5 Z: {
! K3 b, g) f0 {to update-credibility-list
; k; Z, g1 D. mlet i 0) |- Z! h K7 ~8 y2 z- P3 G: K
while[i < people]5 I0 p: [# I B9 I h. ?. _' K5 L
[& \' ~" E4 u' l5 a6 o! X, i
let j 0/ x6 z7 s U& d, ], X7 \
let note 0; U6 q! K6 o. P. U
let k 0
* z2 |. }; C' c7 {% t;;计作出过评价的邻居节点的数目
0 R2 D; ^1 G# ~while[j < people]
% ~ b# o* u2 G9 O; |% v[
! q" E* p6 l) i) \if (item j( [credibility] of turtle (i + 1)) != -1)- u" ^" |8 H$ G. U
;;判断是否给本turtle的评价质量做出过评价的节点
# \1 F" M. ^, L, `) f' p[set note (note + item j ([credibility]of turtle (i + 1)))
9 r+ D+ S2 W( f9 {5 V/ b, F7 H;;*(exp (-(people - 2)))/(people - 2))]5 z- l: \4 m9 r5 A
set k (k + 1)0 p8 b, ^9 j0 C* M# u4 C' u
]) [$ ^5 h$ | Q# S: Q- ]6 ?1 _
set j (j + 1)
, r' v% P3 G4 k1 b+ N" c]
% K" Z, p1 O2 x& o9 M$ w/ _set note (note *(exp (- (1 / k)))/ k)
/ Q4 B; k5 x! Dset credibility-list (replace-item i credibility-list note)/ v/ ~6 `( G% @0 J0 i" B
set i (i + 1)
7 G9 P! a& N- p( p7 x8 P- \% c]8 p9 m7 c5 F) n9 P; t. ]! J
end
0 ?" [# I/ G, Z( N3 I
6 H' Q8 c; p7 R% L9 Pto update-global-reputation-list
. L# T/ r) |/ M6 tlet j 06 j# F3 X5 r$ G+ N2 _
while[j < people]
# H: j# }' b) y. y* [) z[
- H. b6 X, M6 \% slet new 0
- P- C4 Z6 k7 P' b;;暂存新的一个全局声誉" _ a$ q% h( Y2 G1 S2 O# n/ X
let i 0
: R6 H+ B6 I! s i8 Ilet sum-money 0
* E0 |$ H5 V9 \1 Slet credibility-money 0$ k3 r7 Z1 ^2 E0 Z0 U& w' D. Y8 I
while [i < people]
: w2 f. R( W, S[
~$ t& }6 U. X" V! M/ l1 Jset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))) N3 Y4 b4 h1 T1 [! f0 j8 N; i
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))7 N& _0 k8 r- m! ^# n
set i (i + 1)
# P+ V3 a) I+ d/ N) h0 v ]]. M' l; d* ]7 W. z. l
let k 0
* W2 @, j, d1 J2 T: M& Zlet new1 0
+ Y t0 m' @" E4 j2 lwhile [k < people]! M- ?/ v+ \ T) q2 w$ h, I
[ M" P0 J9 Q1 H
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)
- y: v; f* O6 _ x2 F$ u% [+ kset k (k + 1) @0 l4 J0 @# L Y. ~
]1 X$ T; P5 ^/ V( V
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
& N' j6 I& p% f6 u/ w6 p( kset global-reputation-list (replace-item j global-reputation-list new)/ j% I' g5 j$ Q$ t9 S: _
set j (j + 1)
+ b. C5 }3 s2 V" n3 J/ @7 \% G]
/ w0 g2 s" j i/ [" o/ lend
4 g; U/ v% ?2 v: i- O6 M- C: a/ c# [# N' _ P
- e( E3 `" l5 r/ _
7 F B- }$ K% R8 X U7 p3 gto get-color
1 a; A$ I ]/ U% K; d! X q
% B. L( J! m8 ~set color blue: M) o( w) H$ D
end# ? h* N6 ^4 X) B4 E2 X5 S, D
, c a; H+ O! T) mto poll-class
0 `" x9 u) E0 F! q+ d6 Q* nend- S% F1 S5 _# m8 U+ c
( b7 `4 E( ^4 L. {% @1 Y/ Eto setup-plot1( n# O$ p2 \- h1 b
8 k H2 \, [$ m* J+ Qset-current-plot "Trends-of-Local-reputation"2 O C. B$ z' r0 u
$ F5 a1 x. P- ~2 d* j
set-plot-x-range 0 xmax
c0 o* v$ a! n5 S0 q9 B T1 k
set-plot-y-range 0.0 ymax
- A/ V1 v1 t7 s! h* a. Send2 N# R2 ^5 e7 L, e! l5 W! F
: b* `8 j* t1 F- Pto setup-plot2
4 k. n; ]1 ] ~1 ]4 F- y$ I, w- c& W) y/ _8 m# R8 s0 y# }+ t
set-current-plot "Trends-of-global-reputation"2 u& Q6 K4 Q6 C. @1 K0 x! j
+ e' W2 L" @1 Q" b4 rset-plot-x-range 0 xmax- s) q' M2 W z4 X
`/ `% f( Y/ X) M! Z
set-plot-y-range 0.0 ymax
3 z9 e# [9 j- s5 A5 {end
: p; Y( y, l' d6 S- A$ L4 B4 r1 z: x! a/ ~
to setup-plot3
5 q* b3 Q$ {7 g. z3 f1 v
" Y {; U# h$ A7 \set-current-plot "Trends-of-credibility"; {2 C1 p; f7 m( G" x! Y" c
6 P! D$ }& N% a! H/ N4 t; }/ w
set-plot-x-range 0 xmax% R) e' q0 z- U; q: ?* g
4 w2 ?8 K) F, Bset-plot-y-range 0.0 ymax7 f( X: \8 j/ E1 E8 `
end% q/ I" B" M% `2 x; f
. R) P6 u2 `4 K1 x
to do-plots+ P! B) @) ]; k# d( ~
set-current-plot "Trends-of-Local-reputation"
3 Y5 Z% L4 {3 s B( Sset-current-plot-pen "Honest service"# S, j3 S) s8 ~! X( K7 [( {9 O
end: b9 X9 }9 L3 @& {
( ~8 W& v( x6 N5 v
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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