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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) k# `$ P! A7 Zglobals[& ]$ [) I3 `$ Y+ ]# f# ?/ @# ]
xmax8 w0 L; L6 x: d( _9 o
ymax- e6 L" g. S6 V+ n0 D& V
global-reputation-list2 `- U7 w# {$ P" Y) v2 z0 q: Y% c) S
0 @7 V2 t& X5 G- @. v1 |;;每一个turtle的全局声誉都存在此LIST中% B3 N1 U. h. i E$ N) ~
credibility-list1 s2 S1 h4 ~+ D2 }6 M
;;每一个turtle的评价可信度
' ?# z3 X# b8 \7 G5 Rhonest-service
# ?( {5 w1 M7 d5 W8 S" _5 A! xunhonest-service$ y$ [$ Z! L. j4 x
oscillation# Q6 ]3 q' b1 J0 W' \! t
rand-dynamic2 V# ^1 ^. `* {+ \4 z; v3 x5 I
]
2 Y2 e/ q0 v _
2 G* |0 s5 q5 i, [5 ?$ l$ r- tturtles-own[: z& y$ N* `2 T
trade-record-all% R' a4 q$ X8 \+ Z2 g
;;a list of lists,由trade-record-one组成
* Q+ X# S. z [, r$ y5 ^trade-record-one# \9 g$ i! J( S7 T
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
$ ^ K0 U( b4 V n+ F4 W) g0 E3 d. B$ d' Y+ |2 Q9 j2 g# |
;;[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]]
3 ^4 V7 L" N4 Strade-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]
8 n/ j7 y" C& B5 P- |: j( J) hcredibility-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
" E. l4 l4 _! Pneighbor-total' m) n" U6 ?% @, P4 N
;;记录该turtle的邻居节点的数目2 T/ T9 Z% K" q7 n
trade-time+ _5 V0 C8 I; B5 p
;;当前发生交易的turtle的交易时间: d9 C+ o( ]: d) n. Y
appraise-give: J4 e: a4 V; d |4 \" H
;;当前发生交易时给出的评价
. c. `/ v% `7 ~$ `5 K" y) ?appraise-receive( e7 `3 v/ g: p) P4 |4 [
;;当前发生交易时收到的评价
) E( Z5 H2 H) q' X$ Q( U- q, X( Fappraise-time1 E- c0 i6 h+ A7 y* h/ N( i
;;当前发生交易时的评价时间* {# u* x, B$ X, B2 A# x; W
local-reputation-now;;此次交易后相对于对方turtle的局部声誉$ ^% K# @- r) G1 c( C! U7 s
trade-times-total
0 S, ], s: s4 A, G6 V; C: }, U;;与当前turtle的交易总次数4 }, @. ]/ _7 ^* x
trade-money-total
4 _1 t' L8 \* w/ A4 K- R% a @;;与当前turtle的交易总金额
! H$ v" }6 ?% U( [; n6 w. @local-reputation. O( k3 l- {5 k3 i0 j7 D* G# N
global-reputation
. i) S, n( V! c3 e# kcredibility8 M6 y5 M9 u2 u$ F3 l& o
;;评价可信度,每次交易后都需要更新! |; y" O/ c' o$ O6 @8 G
credibility-all2 ?* l% ?9 N( x7 B! N
;;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) ?0 L, e/ ?6 H) f/ h8 f) f; ^
w J( k0 x7 _
;;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
9 N& W* D! d# u) ?credibility-one
! d; _) j9 U& T;;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% B6 w# R; g! \, U. |+ S8 q
global-proportion' x% P' {7 x" f& |: L
customer
$ T; v6 M/ T* N/ Q# A/ L" ucustomer-no) p% z9 k( F2 G5 R4 w
trust-ok; w% s) \) N9 |# h
trade-record-one-len;;trade-record-one的长度' L- H/ T1 ]- y! t" M1 t
]
( C) k: @8 G4 A- t$ t2 }1 f: c+ k" R n$ m% w
;;setup procedure
2 k" U' j% p+ i! g3 N! H% A5 x' a% T3 e/ K& x8 p
to setup
, U5 F+ k/ \' f$ Q9 T; z$ O( @+ R
: [7 N( j1 N" N- m/ V0 Wca
# d* B5 M, L4 r& u
: x- D! g a/ ?initialize-settings
! \# D* p' k% z7 P: ]
0 k/ v; w6 t- F% B; V4 w7 Q. w! ecrt people [setup-turtles]
9 s$ X7 H4 @9 L+ @
; m8 p+ J7 @: H3 B" ~2 w6 Freset-timer
4 ^( \/ M$ Y+ q. K) l3 K& B
9 V8 ~' X' t# P1 b; s5 p0 w/ }. Hpoll-class- x+ I$ t) q5 `6 M6 R
' F1 Z5 F" { K7 h/ q! psetup-plots
+ q; Q% b" M6 M/ {! M$ h( ~3 L6 |; N! b# h% r
do-plots
' m- h( j: V3 q7 A0 l; Oend
; m2 R+ J4 j0 F) K3 Y0 P. D. o
5 O9 E9 W0 h; n. g9 P! ito initialize-settings: E5 \( d. x6 \
, T o- q/ S# x; D Pset global-reputation-list []
! V2 p% c- w, b/ j6 ?; x
% O) c7 C* L0 _/ x5 Fset credibility-list n-values people [0.5]
* J* m( m* [( a y" H$ Z2 t% u
. B) B8 ?8 s' d6 I7 G% I( Cset honest-service 0
& v+ c) f0 _* Y, `$ c4 z2 w1 s9 |& G
set unhonest-service 0
$ a4 x M5 G" Y1 k A% m' X8 M/ m% C) T% D
set oscillation 05 Q! M: v. Q4 u& }5 o, A& {
& N3 O; r( x4 d2 F. x* D1 e) E
set rand-dynamic 0( z! r8 {3 B! ~" z4 X7 D( W8 v( E7 _
end7 C+ ?9 V: o1 _2 }, j0 } N, s
; M( i, E5 ]+ Z, b4 k# {
to setup-turtles 0 D! x, X/ z. X% U$ E& D
set shape "person"
9 r1 e. m. D7 H: {; T- x, lsetxy random-xcor random-ycor' Y7 P7 Z% g- [; L
set trade-record-one []3 i M* H: L- T2 J
, Q' c ]! E/ d! yset trade-record-all n-values people [(list (? + 1) 0 0)] 6 V. m d1 J D
6 t" s* ]) J+ F1 aset trade-record-current []
% R8 u; I8 }: Q9 ~0 W: V0 vset credibility-receive []
1 h/ V( P- K$ Y' z Z& iset local-reputation 0.5
2 r2 N* `8 S% {0 r# kset neighbor-total 0
' n. O- P; L6 Sset trade-times-total 06 k" z! A+ I+ r P! v- A
set trade-money-total 01 N' ?. ?( r$ V0 V" f
set customer nobody7 x- ` e% C! K5 T" Q
set credibility-all n-values people [creat-credibility]: K9 k9 C" m2 u2 {$ P2 J1 j- [4 p
set credibility n-values people [-1]
' ^* u+ b, N2 F/ t7 w. b% zget-color
* u5 A* G) a+ D. H
* R0 W9 E6 a1 w( E' i5 Z# f- bend* D3 v8 Q3 h4 z" k( d" m2 Y6 q! ^
+ }" R0 o5 Z2 W% d. {. S: }to-report creat-credibility, C7 W: |, E6 o# P0 L9 s
report n-values people [0.5]1 G# r' H1 L% d# L
end
4 T' [6 X4 y t0 _5 `% z" e+ e
2 q) F4 n H# [" kto setup-plots3 g* }8 N( j9 |
x% t$ h( M( i# B d7 A
set xmax 30! \: \7 `1 l b! z- t8 Q+ [! C
6 U9 m8 @. S5 m. J; V( p2 zset ymax 1.00 d" O% S2 C a
4 B$ G, f7 H6 F" f* rclear-all-plots9 _% h5 X% a( i! {9 k* ]
: s3 R1 i5 K [& C [) c4 h- hsetup-plot1; y( {& n+ K6 S# X5 m% O" E- t
2 A! [% s, e C. U
setup-plot2
+ J$ c6 i; O& a9 a8 f6 Q8 w) Q' r& C$ C/ p/ p3 N- ], C' z6 @& [
setup-plot3
. O1 ^, z8 E, X( p& Tend' F# w7 q$ S* ^6 J! I' w
% D6 u( `0 R* T; p' v& j j
;;run time procedures
7 [% f0 B! y4 K: D/ v" I! J% B& Q; c! {! a/ |2 z8 k2 Y: q$ a
to go/ S9 y* o4 f# L( C* Y% G/ H
: n: \- ?4 H9 T1 A5 ]" rask turtles [do-business]
, N4 @) w3 t4 g: O! Fend
- m2 _4 l( d* {1 E1 \3 [: I$ K& z! j" N1 X9 }( b9 V7 E
to do-business
7 [3 x- R" @* v6 o/ u9 f) V
; y9 J+ y% H& Q$ M$ n; i- A8 L6 O2 Q
rt random 360
& ?0 l1 [- B% e" @5 V# M
" V+ M: D3 s3 i0 q2 wfd 1
a* s7 C- B( b: a' t3 m4 p" n( W/ b. P2 ^3 f9 R0 n
ifelse(other turtles-here != nobody)[
3 s, R6 Y. O7 _7 \; c0 N! K* }' P1 _
set customer one-of other turtles-here7 D# s9 |6 u: B6 l" B) \
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;; set [customer] of customer myself
- \0 `- a8 W, G9 W1 ~1 Y0 W( F& ?+ O. g) q4 H) ]
set [trade-record-one] of self item (([who] of customer) - 1)
# R* Q5 s+ l5 [5 k[trade-record-all]of self- @; n% _( x8 e' k
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
/ l5 N A. b; o4 V
! ~) V: r# s O+ cset [trade-record-one] of customer item (([who] of self) - 1)
7 e5 o# m) v$ W- \! W[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
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$ `/ f9 c$ G5 S* g+ Task self [do-trust]* x. p, A" `; e' L" o- W
;;先求i对j的信任度
, @+ b1 W/ Z9 u8 _7 G% j- g7 L1 F! J4 G- V
if ([trust-ok] of self)' U) k) l: a4 U( b- ^6 m
;;根据i对j的信任度来决定是否与j进行交易[
; x# P$ X' N. n$ j4 s6 c2 m3 H% u0 ~ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
2 a5 N5 K" E6 y
, S G9 X, P3 o7 n9 z- U[ W2 g- }8 b8 z0 W. _
( q+ H) t4 x0 f( M/ t) R9 ido-trade* H, W- C; y/ H6 X' i5 F
/ m5 k/ e/ z5 z5 y! m+ ?- l
update-credibility-ijl/ X" L% r- P5 n4 E% n, k
+ R9 `* F, y0 p
update-credibility-list
( u% y' f( i: S7 v9 T Q) s
/ n: i6 r$ x) ^: w9 l
+ X- p$ W0 Y: J$ z; s2 h9 i( mupdate-global-reputation-list
8 @7 C }4 n. v! G, c* c
& _- V% Z; M! M8 t" p. O5 G9 Dpoll-class4 I2 T- w s: m8 h
% L7 [: A9 i, X! ]! g6 c
get-color
. j2 _! ?7 h5 l0 H* c7 m7 X
# O5 S8 i! S8 t! @! P4 Q]]
) B9 X6 N0 y: X. s% G5 Q7 Y8 f' H: o* h6 Z# v: s' f" ^
;;如果所得的信任度满足条件,则进行交易, R g& x3 ~) e5 t& L( W
& d- {; V0 Z" \0 y* N {& C$ w[! f& w, l1 J) f( R* L3 Z
+ g0 x' g* }$ ~) Srt random 360
" U2 X4 C2 o4 P- V4 g6 n' [' m5 t% j
fd 1& K: w5 v3 P" `! r2 {
) J# k7 j9 _ o x6 Q T1 o
], C9 j1 v1 g+ H+ Y5 |3 |" }
7 [4 z" o: I: A
end
9 d& p/ [/ H7 f+ u" r
; c, d- O8 n) pto do-trust / g2 t0 W- y( d' S# r
set trust-ok False
( {( T# b7 s5 `
T! b# d5 E1 C
5 R1 ?) ~* I! T8 l8 }let max-trade-times 0
; v7 @4 U( K. K: z7 v4 K7 i! ?4 d- }foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
& z' U9 t P+ u; A( S7 Dlet max-trade-money 0
p5 `/ |8 x$ \2 k1 |, }% hforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
2 ~5 m) a) Q; e5 A" |. @let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
; v0 ^, P+ ^& ]) v9 h
5 b& k. A) ?- I2 N, ?
8 e* a+ O3 y7 I4 j6 m% _' d. }) f2 Oget-global-proportion0 _" i/ d* V; e6 J6 R# @: j
let trust-value
% b: [* ~/ ?6 `; E( {- Nlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
8 r$ D$ y0 p( _7 p. cif(trust-value > trade-trust-value)4 }# i$ C( B( e& h7 Y
[set trust-ok true]" L2 ~8 \9 B) O T8 ~" Q4 H
end
; M k7 F) |6 ^/ W, R4 k' X- x# ^7 j& Q7 |; c: o
to get-global-proportion5 R9 s5 e$ h! e8 k9 ?' T1 z, R) M/ ^
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 x0 z$ M$ k q( g, F
[set global-proportion 0]
( @4 l3 \- d, I[let i 0" D0 _, \9 s! l: e) _9 z3 |: g
let sum-money 0
2 x. w- o% P7 V8 ?while[ i < people]4 I: K+ x( K$ y, g% z+ d
[* |9 ^# n) I$ e
if( length (item i1 C6 q U% ~& Y3 Z/ l5 r4 @/ ^
[trade-record-all] of customer) > 3 )1 F: ^( D! @/ j2 [6 o, w- [
[
' {8 z" e% a/ c# t2 A" X3 u! b0 ^set sum-money (sum-money + item 2(item i [trade-record-all] of myself))8 J- F# ~, d/ D5 n8 N. p' S0 `7 f- \
]) q9 ?- b; Z. G3 @7 O
]# K/ |# L& e4 Z m7 s: a
let j 0
' D5 e- M# j' _: }3 b& s3 v k$ z# mlet note 08 { Y: \7 l6 W8 Z# x- f2 G( O
while[ j < people]1 ]. ?2 j4 I- Q: y Q- o9 l
[- F& a! O7 K0 a/ T: G
if( length (item i) P4 k+ M. o e/ d5 b2 m1 x6 ^
[trade-record-all] of customer) > 3 )
1 F% d; Y; O+ n" ^[. D/ e9 ^# k8 T! O) |
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)3 a. d0 i* |# a- \+ e* [
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]$ V; Z) m) h" d6 H
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]; A7 b l! R& ^2 s! _- j, y
]
0 V1 d" W m/ _% I) ]' R, r# h% ?]
7 q- Z: }' u5 _set global-proportion note( g$ c4 d. B3 I
]+ \4 @0 ~6 a+ B- Q
end4 }$ M+ V/ T0 x7 ?& j, @. m
d8 z u$ L3 ~2 E7 l: O
to do-trade
6 @; r' h! p' p+ }, G; x;;这个过程实际上是给双方作出评价的过程2 l. ^5 U r; C c. |- |0 p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
% T5 ^) [9 N% [ Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价7 Z0 n. M7 |8 Q4 w9 H9 [7 v
set trade-record-current lput(timer) trade-record-current' Y$ j/ z0 d: h$ ?8 K
;;评价时间
8 A" g& @! [3 q5 [) eask myself [1 F ]+ Z% P5 D; o
update-local-reputation
, ?5 Q- I0 a5 X/ vset trade-record-current lput([local-reputation] of myself) trade-record-current2 h) N) C1 o* g* P
]- Z! d+ V8 ]4 c% G+ d& f, E3 d6 T
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
( Y/ \; P+ s. g3 d, g: ?1 j$ K) ?( J;;将此次交易的记录加入到trade-record-one中% m. }9 ^& {3 z+ i; A2 F. _! D
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)& R3 @$ `& c w8 J6 |% X- k! f
let note (item 2 trade-record-current ); L8 O7 ~/ S: Z8 H- |8 r9 m1 z1 V
set trade-record-current9 K+ t- w3 H/ y; g9 @ j3 x* [& x
(replace-item 2 trade-record-current (item 3 trade-record-current))
; m0 j v- k: @. N L( p# q% J% kset trade-record-current# B( `- \! u1 \/ T T/ U
(replace-item 3 trade-record-current note)
" d2 x2 `. a; j# y* l1 x0 n* M$ h; s! }$ q# F
! o' {8 ]. F, Z5 |- {( \
ask customer [$ z/ [; |2 j$ j" f1 O y
update-local-reputation* h) L, \2 y$ ]- }: n9 w" [
set trade-record-current
0 A1 ~. }4 K" B7 l, a. q6 M(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
7 |; Y& r/ @+ B& ^]4 s7 M- f5 h: P; ^ S
) }2 C) r0 c( O |' D+ T7 N
: K( Y/ m% A/ G/ ~& }. X8 F7 g& I; ]set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer+ `! L o+ C$ d) N& q" r/ M2 ~& D
7 L6 g4 ^ v- w6 E
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))- a2 A2 p: {1 B) p3 X" {
;;将此次交易的记录加入到customer的trade-record-all中# o% j( U! `' d/ r; Z7 k$ m
end/ U6 S4 G) j( z/ `3 C& l. ?
& F9 K a; a: o' B$ f) Y' B
to update-local-reputation* }; p, ~+ {% Z- Y5 P
set [trade-record-one-len] of myself length [trade-record-one] of myself
/ j0 J+ j- F& G' d( T% u( r( o; j* \/ [# d
8 o- \) {: K; W0 n' v
;;if [trade-record-one-len] of myself > 3
6 T/ V5 h9 V$ p5 p( gupdate-neighbor-total
6 L" f' w. j& ` [' v( J9 T;;更新邻居节点的数目,在此进行8 |3 D, u$ d! g1 l
let i 3
4 A/ H4 e1 [% A$ t9 k" p, Ulet sum-time 0& p \0 N' W/ A( o Q& [' }
while[i < [trade-record-one-len] of myself]
0 \- `, l9 ~& o& g& P[
; m& e) b6 p$ v. g8 U/ tset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
; Q" O; A6 r3 I) `* g" v: E4 Gset i" |9 u9 P9 B3 J1 w/ \" z$ N9 W
( i + 1)9 O* M, n$ w- u' \8 X k2 q
]4 X- O6 K% K8 V% ?
let j 36 b0 f" h+ c, \9 [% }
let sum-money 0
3 c0 t) ~% a$ ?4 m4 kwhile[j < [trade-record-one-len] of myself]- O$ t2 q( @5 y0 ]2 N, z+ \2 B
[3 n* }& p2 T6 U$ H: g
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)
- K. N" v) x; a* H9 [: qset j+ |( e4 r. z5 |- I; s5 e
( j + 1)
0 ~, G' v/ v- o]! N. g+ U$ @* @% _+ R; Y8 G( ~$ Z
let k 3( w- V; m, D6 ^* t5 I
let power 0. Z4 }- V; h) W, a% L3 Z
let local 0, H5 L) b1 i4 C( {7 c, S
while [k <[trade-record-one-len] of myself]
6 N. F2 N9 _7 N+ ?. L$ p[
! j& Z5 Y5 G% lset 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)
2 I$ W. d6 S) y3 fset k (k + 1)
* ^. }/ H; \$ ^/ h]
) P- m' n" Q) G9 @# Q) p( Bset [local-reputation] of myself (local)
( S1 t/ {* e- r1 }7 mend
8 C; \* G9 U8 D7 X, u e6 x( q& h/ K; {, y' t1 s
to update-neighbor-total
* |- d5 R6 @0 f9 \1 r( p2 d) O* A+ K6 B$ h
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
. w( F. y1 O* t) E2 r- p( n( r; L) n2 P. d
; S* q8 y" c- T+ z) |5 w" o
end
7 u/ o6 u8 c! {1 x9 B( k2 ~8 I8 G$ f2 a( ?( [* G1 i
to update-credibility-ijl ; z: _3 _1 Q; K! ]% [" b% d. G! T
9 ^; r& K. o& J6 ?) A" |
;;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。
4 |3 ~$ z. R) Qlet l 0 ?6 K6 h$ U6 `* _/ M% _# g
while[ l < people ]& g' m7 W, c/ W1 H: C2 f
;;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
K9 m5 K) E; n$ r! U$ T# C0 r- c[! M+ h* L! y& x: \8 E
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)8 K7 q/ Q/ P' z
if (trade-record-one-j-l-len > 3)( y& ~3 ? @- T' 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/ a6 R4 p3 }% k r+ K' Q/ P
let i 3
6 O% E0 x7 K1 o+ Clet sum-time 0; K+ |' ^; `) I, \ h1 f
while[i < trade-record-one-len]9 Y* O8 }( ~7 v. U. S s
[
1 E M9 T0 H. `' P# V, sset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ) b P( @1 O+ l2 F% Z- a7 ?6 @0 j
set i* s2 P6 @8 l" \" Z! w; {$ @
( i + 1)5 y2 b6 ?1 @% Z7 [$ V8 R0 w$ R9 P
]; A9 ~8 v: I* S9 Q* {
let credibility-i-j-l 0, ^5 r$ q6 l" k
;;i评价(j对jl的评价)
" u1 s& x! a) Klet j 3: u, ]) U" p. e9 ~3 C7 A# U
let k 4/ G6 H7 ^. d. ], V
while[j < trade-record-one-len]
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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
# G% f4 y# K/ Y" b0 Y* M5 Jset 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)
) H6 W* ~$ }( Y: E0 j1 O5 Y# f" H# Z& p. Vset j
8 P' X& j. f0 O5 r( j + 1). ~3 F. Y& e4 l
]
7 L% @, M8 _1 Q ]- Sset [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 )); `# [+ t9 [8 F: [
d9 }+ E" w5 M- _) M
: y i1 }# K1 U2 _, s7 B3 M& T
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
3 C; U7 ?; [& c8 y' N( P;;及时更新i对l的评价质量的评价0 I- f4 z; n" _& i( w( o# e) w
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]+ L- `4 j9 n# L. c8 J: C
set l (l + 1)7 f2 R5 _" C2 C% F& n
]1 ^8 a" J' I7 {$ o9 S+ [# S
end
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to update-credibility-list
8 I: O& d& H2 flet i 05 y+ s+ s0 s7 A D
while[i < people]
! i3 a3 S# w2 }3 s" w$ p0 d, g[
% o9 u$ v4 i: V' B( j$ clet j 0( \5 C% g- H4 E7 O+ d
let note 0
/ m" X+ _6 L/ Z& k5 Ylet k 0& P& V, z' d) o
;;计作出过评价的邻居节点的数目
0 l: Z1 z! r6 {# ^' c2 s! k* V. v# K y0 Qwhile[j < people]. U! q5 C1 ^" r+ P* w# C
[4 H& I$ i% H5 N1 ?2 F- x, J
if (item j( [credibility] of turtle (i + 1)) != -1) U; s A# w2 c0 n; }/ N1 g
;;判断是否给本turtle的评价质量做出过评价的节点
1 Q5 X" V5 k8 `0 B, k' @& U[set note (note + item j ([credibility]of turtle (i + 1)))( @6 g: d# S2 G# b& ~
;;*(exp (-(people - 2)))/(people - 2))]
+ B+ P/ @/ b+ y2 X; U; \set k (k + 1)' F( n4 L+ r. z% j( I: ?% r/ [& R
]) ^0 D3 X' K# w" {, w! l! {
set j (j + 1)1 E0 n6 [7 E2 E2 T
]
- p! Y; e" m8 Qset note (note *(exp (- (1 / k)))/ k)3 H+ s: L+ I7 `, p: s# @
set credibility-list (replace-item i credibility-list note)- o8 I1 l# |8 B/ {7 o0 w
set i (i + 1)( Y8 i+ D2 b# \% F$ H5 {4 D
]( p1 W7 ?$ L% Z( ] q% b8 I
end. w2 ^% v! p8 P
0 u1 i1 I# D- C. t) x+ [) _, N
to update-global-reputation-list
( [' y$ m" _# q/ B4 Xlet j 0
5 y% a- E& L1 u0 e1 f: |& Mwhile[j < people]
/ X$ U& p* K+ @/ f, p$ Q0 b; x[, Y+ P1 l9 m9 ]. P+ S7 w
let new 0
. N% v7 f& \8 M% Q;;暂存新的一个全局声誉
! ?& V1 T! X, S& q1 `8 hlet i 05 |$ X( W, F: i" L8 E& W2 f
let sum-money 0
, ^* c! w% i6 n' U5 qlet credibility-money 0
5 \, @. B3 s) N- o R- Mwhile [i < people]9 q8 G& f6 U8 x5 X- D2 n3 Z
[: \# _' o: `7 }; q) E/ [/ @# u
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: m% Q- f* b- f" g: e8 L3 \set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)). F& ]8 ?8 ?# R& @
set i (i + 1)
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let k 0
9 Z9 b3 H! F/ @let new1 0) i* j( w8 Z( m' {. k( k5 i) e4 `
while [k < people]; u5 v+ f% h& p7 I: V% ]& u- a
[! V, r* t3 g- v8 W. _& U2 Z# |# I
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)
3 H2 {3 y" N7 mset k (k + 1)
7 R% H+ e8 t0 l]9 q9 |6 d# x R" j# Q1 H' U
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 8 C- b0 M7 [: ~% M7 I$ b% j. B: I
set global-reputation-list (replace-item j global-reputation-list new). d5 J1 }& [# m% F6 }5 ?' Q
set j (j + 1)
: v+ [) K4 T$ V/ F t]$ J' `1 j, a; k7 S* v' u4 F, s# b
end
: K7 ` V! C; h' k$ _5 ]6 [. F& M, [& ]; O* v4 q
# ~ K, q) h9 B. W- R# Q
. Y( N4 ?$ i, ?, n+ p9 zto get-color5 L1 [5 c: i. H$ i3 d( H
4 \+ D# `7 a" ~0 X: J
set color blue
4 u4 u! O/ Y# r, ^ x2 Bend+ V8 j: A! N/ o
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to poll-class
* P* E s: H. E, z% Z/ gend
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to setup-plot1
6 v' Z! |) v! S" u2 N$ E
; Q9 f) s' c/ ~* Mset-current-plot "Trends-of-Local-reputation"0 Q, P/ w5 g! T7 W+ I6 K. A
# a) T) ?1 q# uset-plot-x-range 0 xmax
. n$ H* ^4 w7 f9 {; v+ I
/ Z/ b+ h; l6 h% x1 b& b, Vset-plot-y-range 0.0 ymax
4 r: s* X# c2 {* H u+ K* Hend
. [! l, e4 ?5 w$ l; d; D) N5 z' @3 j6 g8 e+ f9 u' r b
to setup-plot22 E8 I) `- Q, p- N# t
: x/ g3 f( V, xset-current-plot "Trends-of-global-reputation"
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& \, s# k# t2 W( T9 qset-plot-x-range 0 xmax
4 s( v! {7 `0 @* T$ [) x v s( p2 S& |
set-plot-y-range 0.0 ymax& c* @! B# C' f! {
end# ?" g5 j6 s8 Y9 G6 M2 y
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to setup-plot3: h7 L' j' k2 Y, f0 I8 i. I4 A
5 T+ d w: ?% F0 Vset-current-plot "Trends-of-credibility"
4 N2 {7 O3 U7 z" k: Q$ d
; f, e; ]/ u6 zset-plot-x-range 0 xmax
; t5 u# ^8 @0 S1 j' X- c8 T$ g) y# A% Y/ K5 W! l+ \
set-plot-y-range 0.0 ymax# F% p8 b4 R" \) X4 [
end
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to do-plots
5 Z2 x& T* S8 O2 n% s) J3 _, Mset-current-plot "Trends-of-Local-reputation"2 t! T) w" C3 O: s! O
set-current-plot-pen "Honest service"$ ?& k2 u9 c. o7 \: K! t; c
end }7 l/ L+ f$ Z0 a: J
1 {# }/ }6 ?) \# `7 r[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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