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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
_5 I. E, `5 {/ ^2 s5 dglobals[
/ K% \+ T7 ~/ Z, i1 R8 Axmax
( W! I! O( D3 G. B6 v- Dymax
( Z. G6 N) ~% [' l# } ~7 h5 zglobal-reputation-list, G& q1 f: [, h6 f8 Q! l* n& x _
! q2 Y5 |, g! J' j* b4 t
;;每一个turtle的全局声誉都存在此LIST中7 A2 f2 z( Q" J+ A0 R) ]
credibility-list
% {) L+ V# _8 j4 k; y' x+ h;;每一个turtle的评价可信度
( z% d' Y3 t! i" I& V6 {honest-service
& a/ B2 c, Y: D( aunhonest-service1 h9 L% g- n0 m- w. \3 ~+ Y1 k$ Q
oscillation
2 |! ]! @% q3 Frand-dynamic7 j# a: c) H% V# j5 K U+ L
]) L% _, i+ G) w( x/ W4 K/ C
: b0 m$ ]& I& H7 W+ g3 t$ _3 [* T/ ^turtles-own[6 I8 W' [% U# X& w- q
trade-record-all, j' b: t! m& x! {
;;a list of lists,由trade-record-one组成$ g" `3 D5 G$ F6 p3 u7 l
trade-record-one
2 ?- V0 _6 f p" x. O$ E;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
3 i4 S3 y4 \) q' L4 M9 e: }* w; l0 i% \# @+ X( o8 y* n
;;[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]]/ @( o5 ~9 I+ s; [: g- A
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]
. C" n4 P1 ]! i* icredibility-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
& R" L H- ~! O, J$ K' c0 Pneighbor-total: D1 w1 t* i1 i& F8 n
;;记录该turtle的邻居节点的数目
2 O8 a; j2 ~- j# xtrade-time
i a4 P' p$ i X* g0 G R;;当前发生交易的turtle的交易时间
# `# I! [" A, w4 lappraise-give& r1 E( Y) G0 ]0 L( E3 H" e
;;当前发生交易时给出的评价5 i: C. I6 f( a. `* k3 x3 ]
appraise-receive) W1 i8 L1 p$ P) d# w4 ]
;;当前发生交易时收到的评价! K5 [6 o; X6 M9 u2 o3 ~. P7 O
appraise-time4 ?' W) E/ H% n# w; e* S/ R3 R$ {
;;当前发生交易时的评价时间
. N' m2 D% @# C5 M( [local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" v$ x. b) p5 c! R6 X) _trade-times-total0 L4 E8 \: ~, s2 }% ~5 r2 O& e
;;与当前turtle的交易总次数
+ w0 d1 d6 m1 M4 _trade-money-total* y3 ^: {. v: t, R
;;与当前turtle的交易总金额
# `" c% G8 P% s2 w6 U: jlocal-reputation ^. e" ~; U5 T% k
global-reputation
# ^) u) V8 p0 ^- p. n0 x% Zcredibility5 @, d! G8 ]( W+ }4 [
;;评价可信度,每次交易后都需要更新
7 U5 \" Q; h) [( z* Y: f k1 wcredibility-all+ j8 b9 U& _6 x3 @* N% `, Z
;;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* i, @* A7 ^2 q, S
/ d k! O7 v+ e
;;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
7 Q8 |1 p1 Q4 \4 U$ xcredibility-one9 b& `9 L+ L- ^5 R+ w0 O$ R$ [
;;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% ~' y+ _. { T: o5 s
global-proportion" z- b& I- J+ w( F* E
customer
/ S1 J0 Y! z$ y( y2 rcustomer-no
+ N( s! x& _& e B, Z# M Ctrust-ok1 D: z) A P, q! ]
trade-record-one-len;;trade-record-one的长度- q. l2 K. z9 b Y
]/ C" ?# e5 x1 h# U) c3 O; ~
* ~* p% j+ G8 `: t;;setup procedure) x! J( Y/ ]) z$ U7 s7 }& f6 F
: _7 B; P2 D5 J, ^% b2 v6 s+ tto setup# a- M- C- O3 `% q# b+ P% I9 {6 f1 H! {
$ W& L9 P/ x2 f; r$ v# f5 _ca8 E/ ]2 Y. h2 z+ e; f9 C2 M
8 z7 b8 G# g! P$ S7 T4 V
initialize-settings4 p8 `; s" _% u$ q
- k" d) H6 ?3 i+ M+ E- x3 @crt people [setup-turtles]
# `# N' E1 N" h' T+ o" K& D: g3 M& o+ e- W1 y+ L
reset-timer' [& j4 v( @0 _- @4 e
& S: f9 O O/ [$ B3 w9 ?
poll-class( b0 `' Q3 c' M) J7 S7 |
: [5 A8 g( K; @
setup-plots
& V" b+ q' Z! Z1 e! \" ?0 Q$ u' H- z- l& Q
do-plots; ^6 H+ c( M$ L r1 ^! d/ e
end
; p$ y& ?& V! O% ]9 }3 U3 i# j
/ P" Z" m/ ?' k) t# Lto initialize-settings
% b( W+ [, R5 H& o4 u9 U4 g" w. Y2 s
set global-reputation-list []+ l1 n/ B1 q- F, t
/ W; Q& @3 i: Nset credibility-list n-values people [0.5]
W: f* F" x6 _$ [1 f6 z u$ P: Y/ P+ A, E8 b
set honest-service 0
( `' T) ~" `5 H0 E, i0 R: D
]9 z, D! q. r+ ]3 dset unhonest-service 0
) l" N7 |8 S9 R8 @" `
3 X" K% P2 i" f5 o2 Z# I- ^1 Rset oscillation 0
2 _ {/ Y/ Z6 R- D/ z" L- U6 j, f: u* C% m" w- T2 j$ y
set rand-dynamic 0% H( `* B" z4 M; x" \6 O3 y
end
% y. r5 ^8 S) z3 r+ W4 u% g- n% D; S% x/ ^/ I6 b6 Z
to setup-turtles
* H+ {% t& P; ?4 k% h8 qset shape "person"
- k) D; ?8 a; }* I. `setxy random-xcor random-ycor
5 L& s* \6 m- k2 D8 z5 \3 n/ K$ mset trade-record-one []* n+ O) X5 X( m* O8 L
( R( q! G5 x, ?0 T z& ?; aset trade-record-all n-values people [(list (? + 1) 0 0)]
5 ^+ R) |0 p- Z/ C8 ~3 `) }, F0 s
set trade-record-current []
6 V0 x2 F5 B4 p! c& Bset credibility-receive []
" x+ C% f6 H" S% Jset local-reputation 0.5- l7 d% e% \2 |9 ]; M
set neighbor-total 0; O/ f B- k0 x9 B+ E, r' S
set trade-times-total 0) h" U h. q6 D' t) c& w
set trade-money-total 0
0 b6 N2 x v! l- Uset customer nobody, m) V9 Y3 K# L3 P
set credibility-all n-values people [creat-credibility]0 M/ R5 v1 f7 J9 G& F2 D5 k" M" X
set credibility n-values people [-1]6 @ J% E. h% m& [* Q
get-color. d; B( ]0 ^3 r7 B
4 {# v2 K! K, o# l6 o$ hend
% R. t7 S8 C1 y; N4 @9 n6 q, m+ l9 I6 ?7 M$ y( f
to-report creat-credibility
, V3 M& v; A: g# i) b( x! l. Hreport n-values people [0.5]4 t" w' G$ i1 t6 j5 K
end
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u2 b+ l4 x+ G- r1 J1 v4 }& r6 Uto setup-plots
/ @4 i y, N! \# C
, P% f" E- w! f' oset xmax 30( Y. z( u% y/ J& K1 K- ~9 P( i
' D; D6 a) Z# l* N- G0 g" q
set ymax 1.0
* ` ?1 T' {" D, H' ]' E( D% i' L3 `8 p$ P. u! _$ R8 S. y
clear-all-plots
: n+ J" N# i8 G! [1 _
* D: \! ~/ p, G+ l: N* Ysetup-plot1
4 o4 S* B; B0 v/ r% \1 T5 ^' J+ S( Z' k7 G0 l5 I8 x( n
setup-plot2
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setup-plot3
2 s) D2 [" d; }/ [3 y. B1 Qend4 i; G2 ?; H4 \' H. {0 x
0 H- F3 b7 y+ h+ S0 b
;;run time procedures
/ G$ a. }2 C5 ~* ~) Y3 [4 t1 ^' I$ O; U
to go8 d) r! k$ @( E& G. Q( Y
% m. a: O$ ]8 u) A5 k7 m3 _( w) h; U
ask turtles [do-business]
3 |) `* I v+ V! `6 @end
$ U6 |+ ?8 h: D/ U' K, z& t8 j! U9 Y$ u# {! y
to do-business % t8 X! p; _' u1 g# i+ y, s& {
7 N$ K$ z" H3 F1 I% [
# Y% E0 a S, [& crt random 360
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{6 G' L. W9 S4 \0 ~fd 15 L- _6 k6 D6 ~0 {7 Y B/ K- D
g# x3 |" I& q# d5 |1 J) b, ]
ifelse(other turtles-here != nobody)[
- Q- P- I2 Z, T3 j. N3 }$ Y: e. z1 A; N1 C
set customer one-of other turtles-here
, ^5 _8 U, y- r1 [# D; ]
. S0 C4 O! D& ?7 e* M;; set [customer] of customer myself
1 B8 i& S, n6 y: Y% N* B
1 x1 B6 H$ S( U- u/ C0 Eset [trade-record-one] of self item (([who] of customer) - 1)$ _8 Q: T9 \( }6 V( i( N
[trade-record-all]of self% ?* w* L$ t$ O5 F$ Z0 q7 C' b
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self( w# R: d8 x5 |: C. ?, o4 p
& q/ b* n. q) i- o& ~
set [trade-record-one] of customer item (([who] of self) - 1) P. L- g. U/ l) N9 Q( e
[trade-record-all]of customer
2 f% e: a/ x: E9 X5 N6 q- G$ }* I0 L2 Z4 w4 \$ o3 a6 I. _5 R
set [trade-record-one-len] of self length [trade-record-one] of self
( `9 ~$ F6 K# o! O4 n, U, m' I! ^+ ]
set trade-record-current( list (timer) (random money-upper-limit))
' _6 @* [/ c' v7 j2 n
+ E, Q: c. D6 t, i3 V' iask self [do-trust]
) J# F6 K- z* }7 d;;先求i对j的信任度
; v5 S t; }. P3 b; K' q% U: D1 k
' z9 @: C9 [7 U+ u, l9 G' {if ([trust-ok] of self)4 B/ W* c( U# V1 I. @# j, n+ `7 C2 u
;;根据i对j的信任度来决定是否与j进行交易[
; C/ k1 h; m& z/ Hask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself1 T4 t( Z2 J$ B( N, b+ `
+ p$ k" w: R4 k7 ~. ? ^: J$ v[3 l) U9 ~/ y3 j/ o: l
) k$ {' p4 h. L1 A( \: O: _' e/ ~7 cdo-trade
; q% H1 }; z& R4 x9 R" k# z
% t5 s& w6 X5 u' t$ P& }update-credibility-ijl
7 }/ F- F V; c. W$ Z9 r }6 V" {% J; U( [4 B. G# n% Z. E6 W7 }
update-credibility-list
4 m4 ~% s1 j7 u4 a6 P& b$ y( E) E1 S# \1 _
; z" p1 E' m6 o7 L$ \) o# ?update-global-reputation-list* ^) }0 x* I& R
1 z4 b* }7 T/ j2 B) [% p$ V
poll-class
) c7 E& U; I0 t: w. A
& F' y. U z* @/ D7 s; B+ {6 Zget-color: h; a, n/ h+ [/ c6 K
' [) S3 Q6 r; C4 p( \, k" T. A7 p
]]$ t" a3 \6 Z3 [3 B5 E+ j
/ B% N0 B! _! Z- a;;如果所得的信任度满足条件,则进行交易
, N6 o% M' f$ ]' ~2 F* [# C1 @4 u6 A2 g) x, h
[$ e3 |& r/ u3 C( i, P! C1 K
$ d% y6 X: h4 j' z. O( T0 ]rt random 360
% `6 w3 o9 K5 X; a( z9 u" W
1 D5 S3 x6 s4 [5 {- | y3 ?fd 1' {! Z1 v$ @' C& ?; W5 O3 _ w
A- ^' i- s, F2 N S* Z0 c]
+ h$ s3 Q( @# O. r
5 d K0 C3 w/ t( I: e$ v# _end
* J% v- L! D- ]3 _$ G
" O5 k# d" n7 G$ v8 |# @2 F- Pto do-trust ' E$ ?0 D4 W5 I9 Z
set trust-ok False* k" i, x) R! G1 ^% Y# L% a! v: f
9 [4 Z5 g+ R1 O0 G7 r" \
. x" O! L" ^7 \6 B7 Qlet max-trade-times 0; [+ B# S2 y4 W: Z' b: ?
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]. f4 k: a7 k, a
let max-trade-money 0
6 @. P7 L" g2 v6 Y `. v$ l, j7 \foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
6 H& x% ]; l# U z+ Ulet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))& b3 {2 g* I) Z5 {0 \$ K
7 |. [ n5 o+ B7 j6 C) R# y% y% o* F0 F% {" o" d) W
get-global-proportion( c4 a" |# u3 b" o( N
let trust-value& s) W6 s f& A+ ~/ l6 b' 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)
* Z4 U+ }& ~1 a2 cif(trust-value > trade-trust-value)
7 m/ r( v; ?6 |[set trust-ok true]2 s8 D) H# T- k7 y: y9 I6 }
end
0 f) a: g& `0 X5 T6 Y2 C' u: k
4 [* x8 ]0 [% U, Pto get-global-proportion. x2 K# w8 w1 v. H! w1 c
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)" H* H/ e1 w0 q' E) f; D
[set global-proportion 0]
( A/ ~- ^) P6 y) N[let i 0* I4 L9 n# r( _& O. ?4 J# b1 b
let sum-money 0
. m1 x1 K, U# ^while[ i < people]
! w1 I; Z5 [0 f3 X2 `' ^; p" M[; g- t9 E) q6 P4 ? M0 w
if( length (item i
# I% h$ T% |% M5 R7 _2 a0 `[trade-record-all] of customer) > 3 )
/ _& d8 ]+ t6 t( l$ {. }$ e[
% v( K1 @" j$ c3 }; X$ A. N Sset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
& u. Q5 m- Z) d8 M]
7 J( x. H# U! h- X]
2 ~8 v" W* K) j! G8 Plet j 0
b1 v! U9 ~$ X+ M. `! x5 [let note 0/ O9 N+ B! Z2 a4 |. [9 \ x5 p" _
while[ j < people]
, X+ w! q2 \5 X/ k2 I[: f1 q9 c/ K [, _! M
if( length (item i
1 S0 o2 W- Q/ J, _[trade-record-all] of customer) > 3 )
$ @+ T6 j7 Z. A. l; v8 ^2 @. W2 h" W1 ][
, [) s" q- V' b$ M% Qifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# g% _& z7 f! n9 p8 i$ d+ M4 B- m" ~, E[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]' ^9 D. X, X8 c+ _: f" h# \/ K
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
9 S1 l Y/ d& t2 }]
7 o3 a! m0 c9 f, b]
$ Q1 M: y8 _/ E0 tset global-proportion note, ]. A* g2 B5 H6 \: U
]
% T- F5 a( y+ O5 aend
1 o! j4 k" b/ \9 @5 w0 ~' B- M
2 [/ }6 m0 b) |to do-trade8 y9 K K" @2 }6 U' \
;;这个过程实际上是给双方作出评价的过程5 C. h$ u& U; p, i" |. X
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价1 i: ?. e# y: y# v
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价) v H" {4 `% q, t
set trade-record-current lput(timer) trade-record-current5 x6 l9 \* T: c' e* N7 R% j
;;评价时间3 O8 Z5 h- w( J$ `" w, N- e; ]
ask myself [
3 a2 W) a/ x+ F" `update-local-reputation7 L1 O) N% [+ A! e5 W3 g) q. X( h
set trade-record-current lput([local-reputation] of myself) trade-record-current K% x9 o0 Q: i% {4 z8 H
]# V: h( Q% N7 d
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
: g- u4 |0 z6 V. f2 u;;将此次交易的记录加入到trade-record-one中
& [. {. R# D. ]* eset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! h* h: Z* A4 I8 b
let note (item 2 trade-record-current ); T1 H: t" h7 U4 g; ]- |
set trade-record-current
+ X; [; b8 A2 i(replace-item 2 trade-record-current (item 3 trade-record-current))
7 O/ i- }- c. v' p- }6 ]set trade-record-current1 z% ]0 {, a9 M
(replace-item 3 trade-record-current note)" q w" c" B; X- v
4 [8 j7 z& ]# @: {2 u/ k% K x( R- V6 \4 ~ G. ?/ }" d) S. y
ask customer [
1 G' ]% \( T+ G5 Yupdate-local-reputation1 Y$ Q: @9 {5 _) w7 _. s- V
set trade-record-current: D: Y8 o3 {0 c7 ?0 O
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ! U# G! C. w4 q
]* C6 e, D; R) C& V n9 E; D
2 L7 A! J0 E, n& O/ A$ Z' ^* A* O: k
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer/ h2 ~+ K/ l. ^
& J1 @; w, H e0 B: y1 Iset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
, ^4 l; t5 e2 V9 E* R% T C6 f6 q;;将此次交易的记录加入到customer的trade-record-all中3 V8 ~: S9 B- \8 {
end
, |$ F9 x8 L: r( ]% \
! @; i$ C! W6 [0 t( J# r6 s) fto update-local-reputation
# f: F0 k0 c9 B4 B- k1 Pset [trade-record-one-len] of myself length [trade-record-one] of myself
4 q% [+ L$ n& n6 g- B, j) t. g5 @/ t. o7 A1 `8 t
2 Y. g0 \( `3 i$ f" d# | i( U;;if [trade-record-one-len] of myself > 3
6 b# v3 r# _) G) w+ r; Uupdate-neighbor-total
5 l1 J2 P& _, W2 [2 d% @- H/ [;;更新邻居节点的数目,在此进行
/ `- L# S; p9 K) S7 v6 m# Blet i 3/ D7 i4 C% q5 D% F, A# E
let sum-time 0
3 ` \! Q. I. l" p0 H2 Z9 ~while[i < [trade-record-one-len] of myself]: C+ {, K) z3 C' U1 t$ t
[
+ K# r1 z4 e) ~7 `0 r- N+ tset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )& b, v7 ~* }$ J+ |1 Y; v: p* `; d
set i
: R7 f. \, v0 B3 W+ {3 F7 q( i + 1)
* J3 A x: v$ ~, r2 [: p]. N# U" ~' A! ^; {9 T0 C# b5 Y
let j 3
! p* E8 p8 i0 p3 Alet sum-money 0& [& P0 b# {1 y7 r
while[j < [trade-record-one-len] of myself]5 M( n" e, x+ C
[
3 c! d! e. g2 s+ i; Z2 Gset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)$ r% g3 _4 T( I0 m" }& T, ?) O
set j
& V- b( t& M; n/ z( j + 1)
' N/ x: }: R7 []" \( K: ^2 d6 m- A( _. E& o
let k 3
* m/ b4 T% N s% h+ O) Wlet power 0
) f. Z: e, |2 C9 Ulet local 0
, d+ b" \9 U% A Z. cwhile [k <[trade-record-one-len] of myself]2 f3 g' B; G7 m& x, B
[6 @5 U* b! {# R( ]7 W
set local (local + (item 0 (item k [trade-record-one] of myself)) * (item 1 (item k [trade-record-one] of myself)) * (item 2 (item k [trade-record-one] of myself)) / sum-time / sum-money)
1 ~6 Q/ Y. `: Y% J- y& F8 vset k (k + 1)6 g/ [' K' [3 Q
]
, ?. ~0 f1 Q0 Lset [local-reputation] of myself (local)* f* y* V, J* g- x+ S
end
' G9 _ F7 ]$ K4 x1 P/ i8 W
7 E$ Z7 X2 z) v! V$ qto update-neighbor-total
! Y: m. }2 J& L0 y! u% f( r( D* X' @6 }' \
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
7 l5 ~; J2 v% Y8 T0 v0 G/ P/ k$ m3 J8 M
- T1 m+ V; F: ?" Z1 [% @end
! @8 ?. V: ]' u: t# ]) ~' X4 o+ }$ R
6 o a2 g# x0 y, C! |& \) X- L8 Xto update-credibility-ijl
. W F; y) }2 r) m1 q% y! l& W/ O
9 \9 Y6 @% W, y3 _) K;;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。
: [ h$ L# k) d' X5 d. llet l 0
' [' r2 i5 A' B& g& a) r0 z3 m5 zwhile[ l < people ]$ D; D3 B) o( x
;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
+ i6 s3 D2 [& ~2 {/ oif (trade-record-one-j-l-len > 3): U/ x0 x: ?- Q7 p; g% m
[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
7 k3 ]2 U/ h. V# Y7 G$ s9 Slet i 3
( ^9 _) Z1 L4 ?- ], R, E# f7 Alet sum-time 0
, O3 d: M2 F u+ A$ i. H9 }+ @while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
) u- y5 @8 r. ]+ y& k5 Jset i. m9 J4 \6 R' B: O
( i + 1)
! e9 o" ?0 u3 P1 Z) E* Q]& G* y% H8 h3 R( _3 a$ M8 l
let credibility-i-j-l 0$ J6 { d: h5 M
;;i评价(j对jl的评价)& {+ O3 e3 @1 r; o' |0 a; W1 r
let j 37 E7 H2 N: a3 R
let k 4
1 A- f/ i/ R' d3 D9 q9 jwhile[j < trade-record-one-len]
1 u4 i! a {! @0 x3 I[/ R% n- w4 h! h8 {
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
# u3 l# {% @: J% N" lset 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)0 q f j* ?7 \ H" y, E1 Q3 H
set j
( v& u; E) p8 B2 E1 H" V4 _( j + 1)
n$ |% {1 Q) m4 Q! g: w/ T+ N' D]. ~6 u% K, H! C. j4 H; m! `
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 ))3 q$ p7 I8 y; B% |+ }
8 N: I) G6 x/ N ]# n# V- K
6 t; S9 S5 v- ?4 f$ K* M
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
& S' @ _$ ~; a;;及时更新i对l的评价质量的评价$ \9 d2 `3 w3 j4 U
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
0 z4 b' ~' x* H8 oset l (l + 1)5 _3 H+ a! b3 N9 H+ D
]& c1 S8 ?: [$ }1 w( g
end y: X Q2 i' r" o, a4 P
. V8 f/ {( z5 x" X7 p$ Y7 ^to update-credibility-list
" q" L9 r) a: P6 E$ c" o8 m* [. Mlet i 0/ C/ x6 R, k2 K- Y
while[i < people]
" t. |1 U, \) W7 q0 J[! Z8 v9 Y+ u& N9 q- i! D
let j 05 L/ a/ s! g5 o) A
let note 0) [; ]. x3 Q6 Y, @2 _+ r
let k 0- ]9 F* \8 ]& e& Z3 T) _3 K
;;计作出过评价的邻居节点的数目
8 s+ C+ ?4 M6 c# v/ Rwhile[j < people]
3 T2 N8 m' B0 V" t$ U[- C" X# _ o% M; O, U
if (item j( [credibility] of turtle (i + 1)) != -1)
: H5 t5 Z/ Z2 v0 |, L2 I. o0 W;;判断是否给本turtle的评价质量做出过评价的节点
2 v) i( X9 x5 |: Y5 ]/ o A[set note (note + item j ([credibility]of turtle (i + 1)))
9 A1 ~& w$ ~# y;;*(exp (-(people - 2)))/(people - 2))]
, O6 O/ x2 ]8 x+ tset k (k + 1)
! _3 b; S3 x1 C, Y/ r V) l: d; a/ t]+ ~- J8 C! o1 W; V$ K9 C
set j (j + 1)7 ~* r4 C1 a' C8 U" }9 ?/ C
]
o3 V9 ? ~" ~# [3 Tset note (note *(exp (- (1 / k)))/ k)% D& ~8 W& H& w9 d
set credibility-list (replace-item i credibility-list note)* A8 X# P& n6 G Y7 {- ]
set i (i + 1)
6 J1 X3 Q2 f7 Q0 [) F]' S: |9 Q, `% p4 c7 N1 x2 I0 i
end; W2 r' d, v" |7 g7 @; V
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to update-global-reputation-list
+ _4 D( T: W: R8 V2 @0 ilet j 0
& R9 ?% f+ V( V2 L+ H3 T& ^while[j < people]
6 Z& }# _, X: F& S8 k7 w2 H7 q4 v9 j[
9 a* [4 Z( d( @let new 01 {: {8 t0 K' P: h% i: x
;;暂存新的一个全局声誉
4 B8 n* @8 b w3 q; Olet i 0
( |2 [6 f L5 B/ T8 ~* u* V0 C" Qlet sum-money 0% Z- k& t* N. P- K! K
let credibility-money 0
3 \5 H( G( s" b0 v! Nwhile [i < people]
2 O7 p# d0 L7 Z[$ t2 s9 P* O7 G) m
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) Z& i" k7 w$ w) `% c) [set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
7 d: K/ V8 {( Y/ nset i (i + 1)4 T' v* T, E6 i6 f+ C( B0 J
]
/ @7 E d# ~, S* e! jlet k 0
% ~2 N% c4 K& Slet new1 02 _1 O2 l; f' G4 {; ]) a5 h; J
while [k < people]
" T/ c) z* L& m" ~[
+ q) R$ K$ A% g J! T3 C/ qset 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)
@3 p8 S- ~# Z+ t2 eset k (k + 1)
' z7 t/ X5 z8 k4 h]
# O/ `+ k" I, aset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! p, ^0 a5 b& I/ _
set global-reputation-list (replace-item j global-reputation-list new)
3 H6 c2 ]* i. Y9 uset j (j + 1)
$ E, A+ P) `0 ]( `5 S: s]2 ~1 B5 w2 C s$ |$ R
end
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4 n# N$ g" j6 x) o( r- J
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to get-color6 u7 z v7 y* f2 h
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set color blue
. J0 L. C9 K$ O, I cend
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- W8 u4 K- \: ~2 Y. _- f$ xto poll-class
# x8 b. j5 A! W& T c4 uend
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* H) J0 u9 S5 a" J, yto setup-plot1( t) S6 B6 o3 v. x
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set-current-plot "Trends-of-Local-reputation"
0 z/ Q* j* z, \2 q
! f4 s( ?( u T' z4 H' Hset-plot-x-range 0 xmax
* u1 T0 U7 U& J8 l" b0 U# {, I
' y5 m( [3 t M6 r1 ]5 r+ bset-plot-y-range 0.0 ymax
; ~& {3 V; ?& n1 vend
y+ n, G: x6 g1 Z$ r, r `4 L$ M
to setup-plot2
+ ~) p- ~" G) }: _* l9 r" F) z, b* C4 Z! T! @
set-current-plot "Trends-of-global-reputation"1 a% d) }$ I$ s% l6 w" K
( C! e4 u: A: G4 s! ~
set-plot-x-range 0 xmax
; D2 V/ @+ t9 B8 s2 a; m" D" q# c i9 }2 D, D6 } B0 T4 i
set-plot-y-range 0.0 ymax
( H$ H q: b; a4 n1 kend/ Z9 N, |- V$ r) E1 ^0 `: \& I* O% v' H
2 }, b N1 J, M, b$ [
to setup-plot3 `. {# x6 M: ?" l
) e% V$ h j' l5 a. X7 _& sset-current-plot "Trends-of-credibility"
1 b6 {( w( e+ P7 M* ?) w* d
2 @- i8 E. F' Y, |0 k# S* s- Bset-plot-x-range 0 xmax+ H, G; m9 R4 {) i: S- o
/ E5 F8 r; v& e' T$ U8 N" B! g
set-plot-y-range 0.0 ymax5 Q" |7 h+ _! H" ?5 s
end
N; z+ I6 q5 t+ s" E6 }0 N( c
% ^9 [5 [, h8 S- y8 `to do-plots1 v5 u3 p; c$ j z7 G! _
set-current-plot "Trends-of-Local-reputation"
# l; c! @' \% |3 G% ]set-current-plot-pen "Honest service"8 j+ w4 ~) y$ \9 h9 l8 |' m$ \
end# s- i ]# I7 L
4 Y6 I5 Z2 _+ l7 m) ?+ Q0 v* ^$ D[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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