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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/ B, q1 ]+ l& S- t
globals[
- D E1 W! x. H( @xmax% [" V f. R' ]
ymax
/ ^1 L$ p5 { D, tglobal-reputation-list
y8 l: w9 R" ?5 N; ^* Y# g9 b2 j, W7 R9 d1 o+ j* w
;;每一个turtle的全局声誉都存在此LIST中0 i+ F: H: e0 A; \
credibility-list2 X% X. |2 f# i9 c9 n6 L' m3 I5 l! p
;;每一个turtle的评价可信度
: Q) Y2 E. c3 M& l; c- @8 ~4 g6 khonest-service0 ?5 A2 j! Z) K# M+ e. ]$ \2 v% F
unhonest-service
. Z3 |2 [+ E2 S* doscillation8 `: a: G3 H: g& M5 ]/ I, t9 e, n
rand-dynamic
9 W7 S* Y; T+ z0 ?1 V. b]
+ V) ]# s! M2 `& c! ~2 P) F& d3 m7 A7 ]7 F
turtles-own[$ V/ C) i! F3 G/ N2 n
trade-record-all
) w, `- |% L$ L) t2 n;;a list of lists,由trade-record-one组成* {0 h' z* I1 D/ g( A' x! q
trade-record-one" z! i: z$ A; J2 w$ Y. 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
8 t$ C N$ e& R+ v G! ]7 {5 B3 d9 g5 P
;;[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]]
* D( }+ i% ^; H# E# ?' atrade-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]0 u4 r; p; a/ U
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
3 I' K+ r* F8 }8 P" \! j: N% bneighbor-total: Y6 m/ v4 }+ z8 M# X
;;记录该turtle的邻居节点的数目
5 b3 ~/ \" v# `/ strade-time, }0 f1 ?; P, f; V( M! T
;;当前发生交易的turtle的交易时间' Y$ _( F4 g* d: `/ n
appraise-give! m" ` p& v3 K0 V; R
;;当前发生交易时给出的评价" e+ M9 v2 n( G& j$ `4 c
appraise-receive
+ C( s# T$ d) R; B% }1 j8 g. };;当前发生交易时收到的评价
! U* D& v& u( ] x4 y% zappraise-time& i$ p' i W* @8 p( Q; r I
;;当前发生交易时的评价时间
) e# }( I5 D7 x/ Klocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
+ A- O- P# @! o. dtrade-times-total
) U2 U* N' `: E5 L# Y* t0 B" ` J. j;;与当前turtle的交易总次数. d8 f. C! q" k& y5 [. d; H& R
trade-money-total
# b2 ~" _6 ]* T) N$ Z;;与当前turtle的交易总金额# V0 e W: B6 n3 h
local-reputation% L! l z% G. {
global-reputation2 \2 T3 r( y1 W! }& T4 m
credibility- i* m$ G8 M3 A( o% U
;;评价可信度,每次交易后都需要更新* f. ~! _5 @ x% Z4 J! X
credibility-all3 B! k: | G3 ]
;;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
' T* F1 @2 z' z# L6 {
# b/ e2 ?( B( w$ B;;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: c) Q; F2 J: Z; Ecredibility-one/ x1 k3 G8 ^# H: J* a( @$ _
;;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
+ f" }; ?# H& ^* k( N+ Iglobal-proportion
* R6 E8 `4 N+ K" [3 B- G$ Ucustomer
' w9 T; d4 @ @. d s. Z8 q' u" v7 N3 Z Tcustomer-no
4 z- J( G2 u2 s% ytrust-ok
: L6 X+ A9 @$ n9 z1 x$ W) Ztrade-record-one-len;;trade-record-one的长度' U6 h. X, r7 l2 I
]" J$ o$ t3 v9 q" j V2 G
$ x* Z5 k% u5 F# V4 C2 e
;;setup procedure6 A- u I! O+ H2 K
" v7 ?+ z1 w9 i# T4 |, u
to setup$ V5 q- h6 q3 h3 ]. i, U
( B" y9 n; x+ B! x+ b3 Z: t
ca
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initialize-settings: Z+ a" K( ]6 u" G: B
9 ^1 X. B' i0 R8 \
crt people [setup-turtles]
4 j- q e) j l$ T0 o
1 n! M; w$ |* D5 hreset-timer' U% ~5 R9 m. t. P$ P
$ A" l! s: w& b( o! m, }poll-class
4 p; l* [% w4 ]: |. W# d0 f. z( k7 q6 M3 i- X+ m9 V1 N8 g- r
setup-plots
" Y9 @$ A$ Z' v$ I! c+ T8 a' E c" {5 w$ \! ]8 E( K- C C- P @. J8 Z; N2 b5 t
do-plots' D/ @: F" r0 y! g" N5 }) r
end
; p# S& s9 v" D9 `9 W0 Z4 Q4 m j4 M$ s) F5 U
to initialize-settings
9 h1 `5 Q1 M5 Y; _. {
. e( m0 T' N' Z" s' j, j* Yset global-reputation-list []8 _" ?- [; A8 L2 I f/ s+ ~
2 m7 }6 k! Y: W8 y' Y9 A( k p7 E
set credibility-list n-values people [0.5]
. ~/ n X8 j" e& I; S; a* g! b% e6 u& a
set honest-service 0
5 c: F1 b! W6 `$ _# P* [! w8 c+ G, H3 P
set unhonest-service 0' Y1 ~7 `- T. ~1 F
& n! l' C1 u* m. x; J- @' D P4 ^
set oscillation 0/ Z% a1 R& l6 v+ I! L4 a3 D
8 g, r; o0 e) u/ b! R7 K; aset rand-dynamic 0. r8 c1 W+ X" Y4 |
end
+ g& ]# @" {, n$ A& h! C- B5 z) [3 a0 B+ |
to setup-turtles * Q. O$ q5 o, D
set shape "person"
+ f7 l% R$ f Hsetxy random-xcor random-ycor6 i3 s9 `: q4 \4 I& [; ^. t! b
set trade-record-one []
, G" K) {* g4 w
! K: L8 ]' N2 e- W2 Uset trade-record-all n-values people [(list (? + 1) 0 0)] 6 N }$ [- e9 C* {3 U+ {. C. O
7 m, J+ ^& ?* m$ aset trade-record-current []
( V7 S( N( J7 \: Tset credibility-receive []
7 u0 f: s) H, z& Q4 X7 K4 ?3 F. sset local-reputation 0.5" S/ b' e% J8 w' A( ] E! f6 U9 w
set neighbor-total 09 h: u0 Q3 O; N
set trade-times-total 05 y- q- s0 v$ W" P( c, x; m
set trade-money-total 0! c; c, t" Z8 M$ H) p
set customer nobody5 t0 X5 a/ R- Y2 ]# `( y1 J6 \
set credibility-all n-values people [creat-credibility]
" T. i1 B) _9 L8 B- ^set credibility n-values people [-1]
8 s U9 O! R5 T2 L! Gget-color
$ x5 T3 W) o: J# q! }* a3 R0 K6 [! J; u$ ?7 b' w7 P: e8 A
end
" M5 s9 Y7 [ _ u$ q7 _5 @! B+ _! B8 g6 Y
to-report creat-credibility0 F/ D" }6 v( E, Y, `
report n-values people [0.5]
: w( A5 |/ a) C! [/ o1 M/ v, t* Lend
3 Z; ~9 `8 P9 M. i( T5 Y% Q4 I/ O0 \+ B8 n2 p0 [
to setup-plots
9 `. K6 [, e; k" r2 f. U
* ]- c, W6 v& i4 O8 U/ hset xmax 30
# l' d! k: ~' ]/ Z* `! V& h
3 a. H2 o5 ^# ?9 _0 t- sset ymax 1.0
9 o! F' H& O" D
0 G6 N* r. m+ m$ D- K0 vclear-all-plots
) D) r. G2 X0 }. e# D/ n' h$ X3 c1 u( [5 b f/ x
setup-plot1
% l9 g4 m$ C# q: z- |. G- L' x( q
) G( F5 s, O" isetup-plot23 g$ p4 E" G+ K9 r. t& ]4 y. F$ B
8 x c* }7 R& hsetup-plot3
" X6 s. M# h2 m) Q; r. C; Aend; G. R0 t( m- m$ A @
w ?) z6 T5 Y# w+ p3 O2 x" T;;run time procedures2 I% z) E9 N. p( Y3 s% | n
v, ~3 D+ Y- lto go
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( Y& N, \2 e. N$ Dask turtles [do-business]
* o# E) J3 Q4 E, w) M$ \end4 v/ V3 e0 d7 o( q( `* w/ A6 U( }
* [) i7 l' x# o/ @
to do-business
% a- h& ^/ G. n/ w ^- U& ^" s( u
( t* V& S+ V0 G! [( N$ M
; v* y/ _' p- T8 c' Brt random 360
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fd 1! p8 H- P& G: K' L/ S+ u- p1 }
& Y+ S ~* W. n+ O
ifelse(other turtles-here != nobody)[7 d* w* w. v1 Q% R5 d: b/ O
( E$ R7 b5 b, l8 _1 h* i$ ^
set customer one-of other turtles-here
5 g7 M' B3 u+ d
- K5 _# v- w" j! ]5 q7 E2 V0 I9 E" e;; set [customer] of customer myself3 W" \5 D9 I) R: k
9 g) \9 @7 B" S A8 W, o
set [trade-record-one] of self item (([who] of customer) - 1)
5 [. j' t1 A- R: J[trade-record-all]of self9 t6 E/ u* m) w8 ^
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self( v2 O$ X, G" |& I8 r
) O& N$ n& t4 aset [trade-record-one] of customer item (([who] of self) - 1)2 o9 }; [, |4 T* Z: g( o# ^
[trade-record-all]of customer3 j5 l, t- U" o
% t$ F$ V& j. g- ]% dset [trade-record-one-len] of self length [trade-record-one] of self# k' a5 P5 b6 c/ K/ e7 k
0 V& I9 c3 l5 W& U- U
set trade-record-current( list (timer) (random money-upper-limit))
' S! I+ r d0 j2 G, E3 N; v; P
9 `; t" O7 U# rask self [do-trust]
. h% a6 E, Z" s4 j% E3 s;;先求i对j的信任度
, ?, D; x' `5 R; i+ {- X, W) S# z. |( |) ^% w( H1 \
if ([trust-ok] of self)
+ w: |- D8 m% g& V; `7 v* u1 A- };;根据i对j的信任度来决定是否与j进行交易[
+ @- {% I/ t* M1 ~" ?0 z5 Wask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself0 c7 S9 E6 L" @7 }$ U' U6 p
/ e1 t5 [$ i3 u( s H[
, d# o& `& ]5 U3 X s, W9 ~( |9 X5 C& K3 d2 u5 ~
do-trade
" ^( b) D9 A) ^2 Q; O6 k- O8 m7 c0 n* A5 s: p, W' z4 s9 Z4 I7 `
update-credibility-ijl
/ K! J& w; v6 z9 Y8 d d$ S6 ~. Y1 w' J. X
update-credibility-list& o: \7 Y; ^5 L& ~4 E
! K6 m: m( P, w6 ?# c; q, x5 J
6 y' h! P8 F6 V1 \
update-global-reputation-list, N( u0 R! Z5 B0 b) W: n( C
& b# M3 o! t. |' v
poll-class# ~1 m& Y( \0 \ T0 i( y2 v+ i4 h
& C/ z4 X# Y8 w+ i
get-color
2 b9 @1 I8 R7 l Z2 g" x
' N' o, s' x' f$ {' {]]
- Y0 Z# p# |& ]+ V9 e: m! }# V
4 j! W7 I; d' J% \1 c# v;;如果所得的信任度满足条件,则进行交易5 j9 ?% r& o) x7 n1 ^! M9 k
% m' ]- j) v5 f' D5 T+ Y: s
[7 k2 R. J E6 h1 x
5 t3 e. X) M- j) vrt random 3600 X) t1 X5 \6 F
1 W# y* @/ w1 q4 Y, @
fd 1- V# k3 H: J, X: ^9 S- }
8 n/ l+ z m8 w: f( K- I7 N8 {
]7 z& s) p' `9 ?2 S$ h$ n
9 _% ~9 m3 y; g) d
end# @! s) e3 {7 F6 c8 q! [* ]6 v0 J
9 y: b( a2 R( q, z' G
to do-trust
# m( j' o/ E. cset trust-ok False
# \ u/ Z/ |7 {9 O& J- ] B8 s- l, M( W( S9 w. ?" W8 F; H+ R+ F: V
3 ?4 F+ R3 Q- m5 X& z6 o
let max-trade-times 0
' U3 f$ R, e* p( R. H# Mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ F; m2 S7 t0 Ylet max-trade-money 0# [1 r0 L9 O" y5 L+ J
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]9 M4 s& `7 ^1 Z8 W$ _- H
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))$ D9 @1 A, A( J$ l8 X1 e
& w* K' S/ L- c3 i7 Z$ h3 `* l4 E: w2 J% w/ y+ f
get-global-proportion, u" N, S1 }( f
let trust-value/ A+ d& q' d& ]3 {3 ~
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)! y; H" D3 ^4 X0 x% W
if(trust-value > trade-trust-value)! }! ]6 {! t/ [0 c6 V
[set trust-ok true]% l0 V6 f% \4 f$ L1 X
end: M, s, Z1 F" p& w2 G& q3 X$ j
B; G" b. x# U' c2 x. m7 y
to get-global-proportion
# G4 F( }& K' e: l& Q Iifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), {' A& n3 j+ r3 `/ }% p0 R
[set global-proportion 0]. M+ t' v! [5 u; u; Y
[let i 0+ }& f& u: E8 Q
let sum-money 0
& ^- r; Z- Y8 n% J% _5 O; C# _1 gwhile[ i < people]) }2 P4 u5 M1 i" x; ?3 z$ h
[4 V3 q( U* s4 [- o% o& @' U
if( length (item i" e$ G) e/ H. _2 C) I) B" C
[trade-record-all] of customer) > 3 )
|' j. j+ C# A; J. t/ S( w# b$ B6 u/ ?[# _; W5 ?5 d# ]6 Z- j+ k
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
+ m k! I3 ^4 Z; }% T) J" ~]
* \' y9 A6 s3 l: @. f& A]
_3 t$ y x6 `1 Mlet j 0- T0 p+ y: e& M& C1 i
let note 00 ?8 I. U7 e# i3 |' y' i
while[ j < people]
# J3 g; l( J, c" Q) ^/ w0 I' G+ y[% \* J$ h- b, z& _* T2 G
if( length (item i% P" I% n$ c- R: _
[trade-record-all] of customer) > 3 )- F+ I% `, G+ K1 l# s$ ]+ t% \
[: e' M9 I1 M# j6 x# Y
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)0 d" n7 _( K7 r6 A! }; D0 N
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
1 W; ^/ g, F- m2 X! k+ ~[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]0 m3 M5 d% K# Y7 U6 S% e, @( E
]5 k+ W/ m P, }. Y. D4 O. [
]
( K) D4 O" q) c8 s/ P) |set global-proportion note
/ \( O: l. r; b3 x- a+ j9 s+ z2 V- z]$ Y5 a9 S8 s2 h7 J
end
, i9 X0 _; C8 w
6 s! O4 p4 A5 Eto do-trade
/ c, B. V& s& @' e/ o- e# J;;这个过程实际上是给双方作出评价的过程
" N5 \6 J- A rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
- ~, E3 c/ {6 I7 e2 r+ Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
9 @7 I- j' r6 L5 F' rset trade-record-current lput(timer) trade-record-current
1 d% ?0 \( p K1 U;;评价时间* Q% L) F! e6 I
ask myself [5 ]4 a# v7 X5 U6 ~ D/ Y# |
update-local-reputation
7 p) t* ~" ?# ^3 j7 r" }set trade-record-current lput([local-reputation] of myself) trade-record-current
; N5 c. y5 u0 J9 r* z]; a2 w1 [) c+ k& _/ M) |
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself" U0 ^ t5 |, L J# a( C+ }1 ~% R
;;将此次交易的记录加入到trade-record-one中1 f |% t* K+ T% a
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 i; a+ r/ G8 E
let note (item 2 trade-record-current )
( ~( |& [/ w7 A9 p) G9 y/ mset trade-record-current7 C& t+ G, X( G) v1 Y
(replace-item 2 trade-record-current (item 3 trade-record-current)). O& |* F8 [# Y1 B' [( g! r1 u
set trade-record-current
1 V+ { |7 P* [(replace-item 3 trade-record-current note)
( b4 ?. L3 W/ g" b, w
7 {: Q# [& W m" \0 m- e$ M" I- f
; _# T- H2 ^2 i: Y+ @ask customer [
' F" R: ~$ s7 d# O- Mupdate-local-reputation
: z- j ]2 [/ v0 N+ Dset trade-record-current
3 M$ ~+ K, H- E* `5 `(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) . E5 ?: z K! `
]% `; d; h8 `5 N; P( k
- i8 f* }3 Q) T/ u( T7 ?5 Z
: S w0 s/ F X. T6 lset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
* J2 b! p. X: j( a# \5 ] |
7 b/ F; T. I, j3 L" Mset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
# ?( K# b$ E2 Z" k0 l' R7 T: R;;将此次交易的记录加入到customer的trade-record-all中3 q" p8 P9 S$ o+ e
end' Z/ P6 S5 H8 |: ?1 O% G
/ l; N' @4 J k A+ i6 T* lto update-local-reputation
* [2 r- Y. ~% v* P+ ` Yset [trade-record-one-len] of myself length [trade-record-one] of myself
- S; i( r5 I5 t& D0 j2 m; A$ R5 O( [5 {; `7 A& K- W' e
+ E4 F# N$ u& D6 ]
;;if [trade-record-one-len] of myself > 3 - N4 u+ S& P7 w& w) f* s4 Q; r9 b/ m
update-neighbor-total7 p; Z" P2 [3 F, Z7 |. R3 W
;;更新邻居节点的数目,在此进行
% x2 c s4 Y1 x( Alet i 3
. g9 E, t& o1 v7 l% K( |& F% U7 L8 Slet sum-time 0
! _' Z. d: P# Z- B+ ^2 c4 g5 t9 \while[i < [trade-record-one-len] of myself]7 X! e3 [! Y! ^# r
[5 U+ n4 }$ S$ F) v0 |
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
t8 c L" P& b) G v! hset i& E, l D. q/ h: |+ }
( i + 1)7 `# `. x; x& c# X
]
; c9 l: {) H2 o: o- j7 M6 Elet j 3
& |! p% S2 t! T1 `let sum-money 0
* m7 f1 P6 b; P C- S! j! rwhile[j < [trade-record-one-len] of myself]8 T/ I p4 O$ j2 R0 w* g
[) J, G8 }" |& D6 ~( V! j
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 B( b' ~3 S1 n( Uset j
- w" |/ G; c& V j6 Q( j + 1)$ q1 g4 I% _$ A5 q
]- C4 j( c7 I8 n+ R: Z6 x3 [
let k 3
7 w) X' s; J+ z6 olet power 0
5 w6 \8 r2 c0 n- v' Llet local 0( l% r* [- @5 ?5 G
while [k <[trade-record-one-len] of myself]+ \+ u+ O Q6 S; ~9 b
[
# d! ^# }4 E7 v A3 i8 \" @3 x i* [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 ^' E/ ?' r! J/ F
set k (k + 1): \: [7 |3 }; I5 t
]
) V1 q4 i: V. T3 T' H! ^( Kset [local-reputation] of myself (local)/ w* \# \8 D `/ _
end
8 ^- V1 l: D1 r3 V+ q! e
4 X3 Q3 A2 u% Y0 p" cto update-neighbor-total; V1 s2 p6 }; H7 N
( C0 p; X3 L& P
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
1 \7 G s! Z7 |* s7 _% f. t+ Z$ X& n- i8 j& N6 x8 i
; c% b4 A( W6 v: B m2 ?. B zend
# B; M+ E" A0 j9 D; s
! V9 K( g- e) mto update-credibility-ijl * k6 B+ l( j! _
! t( P( G2 M) f+ z;;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。# G/ |: e9 o Z1 J$ o/ [& E. O, V; I# H
let l 0
4 b- M- u3 d: f5 k6 e* N" x& m5 uwhile[ l < people ]# A# r b$ ]* ~3 m
;;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* h/ i6 [# {6 F" `' |; R& q
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
' S0 a6 x: `7 q% M) G# [' Lif (trade-record-one-j-l-len > 3)4 R+ r8 q: ? G% }6 j
[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# S6 F# p$ U1 b3 j5 f
let i 38 S8 o1 N) d. I& _( [1 w
let sum-time 00 b$ u5 d& u, t, O
while[i < trade-record-one-len]
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( C6 G$ {) ?+ ~4 [+ Yset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )4 x E \! ]7 r% l# K. \
set i1 @; F+ o Y/ _! K! L
( i + 1)' T" x O( H( }
]' I% E2 J: e& Y3 h) f* c5 a6 W
let credibility-i-j-l 0
$ B3 v1 |% E3 Q/ X8 g;;i评价(j对jl的评价)' `" K u Z" w( \ o- e5 I) H! F- |
let j 3) x0 W, a2 ?+ Q9 W
let k 40 I" N- V/ O9 q# c5 g5 ~ U
while[j < trade-record-one-len], |! E1 a/ p7 y
[( `% j' Y1 K C! h& W
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) @+ Q( m* K. r" O% C3 V7 V# B9 B
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)- S# M4 v) M! u( f, ~
set j
! F3 J" r M6 l( j + 1)
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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))1 B# Y8 B0 N4 K0 N0 B) h& P, f0 w9 _
;;及时更新i对l的评价质量的评价
0 F7 @: P2 |/ Q6 O+ k% t7 [3 Nset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' g$ L7 D& @, e; rset l (l + 1)
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end4 T. _; l! B% ]$ t
2 b2 v# M5 p5 u4 Qto update-credibility-list5 u8 s& _( K N& Y% m
let i 04 g9 T4 V% C: l* w3 R
while[i < people]/ H. F$ n/ A2 S5 a, F
[# F9 e1 W1 G$ n) V# L' L* b
let j 0
/ A+ L: N# M- G x% e Ulet note 0
) V# Q; q1 s t) alet k 0
* X# ?0 J& f; U;;计作出过评价的邻居节点的数目
7 t# k- D& l- s. T; V1 x+ _8 c3 x; Owhile[j < people]% \# G7 r3 O3 N) S4 L0 F
[) C2 g* O4 ?; f4 m9 e
if (item j( [credibility] of turtle (i + 1)) != -1)
9 t: H7 z5 H7 X: _% |;;判断是否给本turtle的评价质量做出过评价的节点
3 N/ T: P% t% s' A[set note (note + item j ([credibility]of turtle (i + 1)))
5 j! p9 e+ n/ N;;*(exp (-(people - 2)))/(people - 2))]
3 M, ~0 \0 L% ]' y$ v$ m* cset k (k + 1)
% }1 c% Y. s% d1 _" o2 k]6 @+ n1 U! r/ `- P ]" z
set j (j + 1)
$ H% c2 H9 G$ L: w]
; [5 |7 |& s: j" mset note (note *(exp (- (1 / k)))/ k)
3 N+ f8 R4 y% N+ W& ~ xset credibility-list (replace-item i credibility-list note): ~ Y% V4 L, O3 a' }0 i- ~
set i (i + 1)
2 r* S' R5 [6 w3 r" A/ `4 n4 e], r% F* g O. k, p: }: O
end
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to update-global-reputation-list' d2 I" x- W& A: t, d3 e( I
let j 0
8 |+ S9 ^" o2 o/ [4 N/ }while[j < people]5 `6 W4 k. _& e
[
* m, X. x+ Q; slet new 0
) n5 ]* s! _- K, R6 b q D;;暂存新的一个全局声誉
; q4 W& q; o2 `# T$ `" Vlet i 0
" b! o1 u8 F- I2 |! {7 \& f. Glet sum-money 04 t2 T3 l5 d; c2 { J8 j
let credibility-money 0 @6 L" o# ^$ q, }6 A& b! w- M
while [i < people]
2 W0 H9 y- M5 K* ?" K3 z8 d[/ y6 x) R/ Q! I$ ]. V7 ]
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))2 d) u) W& [2 h! I0 U7 L+ L% D; n. w
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))4 T/ g7 Z. r$ o8 i
set i (i + 1)9 ^. v$ g6 N0 {4 L) }2 l- ]
]
?7 @5 D, j& f$ wlet k 0
2 c% S3 ? k9 G% Jlet new1 0' C4 H9 a) a6 G8 c4 _
while [k < people]' ?( E" }) ~6 y
[" ]- e& e. j" Q4 I" G
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)
2 ?# T4 L; N) `set k (k + 1)
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3 S; K* A5 C0 n! }, _4 }set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( M1 U1 Q8 X9 Dset global-reputation-list (replace-item j global-reputation-list new)
) O4 \( K/ m3 d8 t" t3 ~" x3 \set j (j + 1)
* t* H" U$ R' C! @$ z+ d], i; }0 K& p+ e4 s' }) z
end
1 q1 {/ Z: j# @% A4 ]$ j- ~5 V6 Y- a" b
5 y" y; a$ O& o, W) @
" F! K5 \" u# yto get-color2 G/ n. N* H6 q! e$ d
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set color blue
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# W5 W. w" w9 B* {to poll-class
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# _- s% m4 ?- H+ A2 d
to setup-plot10 e* i' p9 K% a
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set-current-plot "Trends-of-Local-reputation"$ O6 t& i/ W- g9 h
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set-plot-x-range 0 xmax' i* h7 A* m; p
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set-plot-y-range 0.0 ymax" E* y9 c: t |3 H, K
end" Q9 s/ ]- {; k% l- W1 V. {
4 I5 |, n* r3 K& @4 a" ^
to setup-plot2
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set-current-plot "Trends-of-global-reputation"0 ]+ c% b3 d4 V+ R& e
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set-plot-x-range 0 xmax
0 D3 P, o0 P4 b# p- V& w6 v) i0 F
2 \: T: T- W8 i" p2 c$ yset-plot-y-range 0.0 ymax
( C B3 h2 @+ f9 K( x4 K Nend
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4 F; Y& Y+ E+ v9 `0 Qto setup-plot3
6 l- [) P Z9 ^
" c m3 R8 C6 Mset-current-plot "Trends-of-credibility"
+ |$ s. }& D& @, U8 L7 j: D/ N# q Q+ T
/ K: ]; c4 g% \# g- j& B7 t; u/ L# qset-plot-x-range 0 xmax
9 ^* h0 x5 {- H% Q+ W! N h, \/ M8 T" F/ |5 ~+ ^
set-plot-y-range 0.0 ymax) T0 [9 _2 M4 W6 Y5 Y
end3 t( E: c; v! s% E* n# t5 I
, r2 X* Q7 t7 b, l" Zto do-plots0 @# d: l" y X* Q0 F
set-current-plot "Trends-of-Local-reputation") {9 ~8 _8 G' a2 o2 P
set-current-plot-pen "Honest service"
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9 O3 ?0 k: l' ~) P( \# I0 g- H2 t[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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