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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
8 Q4 x, n- |' [3 S, o9 [9 i# Fglobals[
- _& s. q$ L; o0 I; A5 Txmax
5 x* l4 c8 V/ Y7 Mymax
2 M" ?4 a6 ~: P+ vglobal-reputation-list
+ \+ U/ o n5 i/ _" ]1 O3 ~, b$ ]& B# o: `: G
;;每一个turtle的全局声誉都存在此LIST中1 t$ G) [# W6 i0 p) Y
credibility-list
* n5 S( e0 F1 Y( d' M" Y;;每一个turtle的评价可信度" u) A0 Z: y% O4 O: w
honest-service
. |* t1 T- d9 p1 m1 I w) c7 Bunhonest-service4 Z7 ^8 `& ]+ z$ }! Z z" C/ |6 P
oscillation
; A4 \: S; Q$ U2 s7 p6 Yrand-dynamic
- @$ f) s# F, ?7 c; i; q/ H1 f]$ N1 T# \1 u9 H% h/ A$ Y0 z0 E8 j3 n
% i- p+ }/ ?3 w3 I' gturtles-own[
& X! K* e, ~$ B9 I* |trade-record-all6 N' F( U: A; f2 k" b
;;a list of lists,由trade-record-one组成
: ^" N P1 Z7 itrade-record-one% P& \6 t5 H5 m, d* U
;;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 ?0 M, r" p( B0 _" o
/ \8 m7 g" w1 h;;[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]]
4 a% E# _" `. R! A1 D1 Q5 Rtrade-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]
7 i& q2 a. ]0 p4 rcredibility-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list8 @6 T# y) z( {1 C9 _) I
neighbor-total
' d; d6 L8 M& \7 q4 n* b$ J; L;;记录该turtle的邻居节点的数目2 }8 Y* z# ]' z0 K
trade-time+ @0 Y1 w) l5 G9 E
;;当前发生交易的turtle的交易时间* B6 R$ U0 m9 V
appraise-give3 a, @8 j8 f" o7 D; r3 ^; h
;;当前发生交易时给出的评价
5 e7 v: Z6 z& v4 h$ U; Eappraise-receive
" G/ @) j# ]# U7 d1 z' S;;当前发生交易时收到的评价6 Z% q: l1 D* _( e! a% ]# ^
appraise-time+ N$ _$ S( J1 O! Q
;;当前发生交易时的评价时间% H. B9 f9 s' [3 C) V
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
0 s& I6 o5 V2 b7 htrade-times-total
- x" y2 C/ y3 }- S. M" L;;与当前turtle的交易总次数. s; U x2 S* w4 M: ~+ [" T
trade-money-total' F5 u9 R$ _% j( l9 o. D
;;与当前turtle的交易总金额3 G% q2 |# N/ ]7 s3 [/ v
local-reputation) e" g" m# m' l7 C8 x; W
global-reputation. G8 p* u( \3 e/ w- i% u% q
credibility* r* [9 [3 t+ T* U
;;评价可信度,每次交易后都需要更新
2 P$ i) E" v7 \! f# F3 ?' Zcredibility-all: B8 m# l" O1 n) |6 ?
;;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7 s+ Q2 r) ]) h( R1 g! V
1 o5 {/ H, k7 O;;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
# H0 M Q$ M0 B; `0 T$ u$ v8 u; ~- u) Acredibility-one. m) x7 X- x' w* e5 g9 w
;;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
( m3 Y4 O! K) e5 S, R3 {, bglobal-proportion4 l: j1 k9 S9 l% V* h% c: m' u1 ^! u, f
customer
* p# J# F9 N- B& U4 Fcustomer-no$ _4 h2 _* m% Y1 s. H
trust-ok
; p8 M4 V& t3 o' e8 a9 ^6 X* Ttrade-record-one-len;;trade-record-one的长度
- L$ ]0 Y( W% H) d, E6 m]
* p9 d5 h+ L! R& ~8 _+ t; V, r" w/ Q0 a+ f
;;setup procedure8 x* j* k& ?2 T! r# i/ r$ C# G7 c
. ^) q+ ]7 w9 Q9 H7 @! m/ ato setup
* B$ G: E4 N' N! k! E) r4 o, |6 u. J
ca
$ M& b- N* T6 C# z+ |2 w
8 s; B% F& \: xinitialize-settings: ?/ R, H1 d- [) u- o
+ b5 U0 _% O( |4 g# c. Y* w- B* s
crt people [setup-turtles]
5 j. C8 `: W+ W7 _5 T8 \5 J0 g6 }3 Y
reset-timer# c) ^4 Y9 s& d' y/ W$ `
& C* H/ y1 y: I0 T
poll-class
% r; l& \. }9 R i& h; b- x! I+ I' F8 A- P0 l* k
setup-plots
' ~/ V1 i+ F+ L$ I) V! {! S* u' e5 k; R# t" e7 \
do-plots. D2 N1 j K- f
end
! l9 {! s) o" j d8 _4 n/ Y! G: V& k0 n4 S. D# x
to initialize-settings
) T; p, O+ H9 h. r1 d/ _7 C+ F1 z% L" b" g7 q
set global-reputation-list []2 E9 R" |* R$ ?3 i: p
9 S* T1 N: N! _( x* zset credibility-list n-values people [0.5]2 U" l9 h+ s: ]% e; d' x
5 i" H1 q4 R9 ]% {8 Q$ z) zset honest-service 0+ t- L% [. z9 p) w% f: P- X
1 L' g9 [7 [4 r3 Xset unhonest-service 0
9 P$ W5 H1 P# d! Y9 ^9 g
2 B( i) O5 w- a# _set oscillation 0, v4 m. x$ W. H. Z# V: \4 W( o- \/ @$ X
8 q. @1 x1 c* h) a3 k% W4 D5 Y
set rand-dynamic 04 C, s- T# U' y k% N0 q) `
end/ e8 i5 U" h+ M' h& Z
% L4 u. j; V/ V' d; u; D. g
to setup-turtles ' P& }2 M" Q; m! X+ _- T1 ^
set shape "person"6 E4 w3 g. i- ]( ]
setxy random-xcor random-ycor
/ A; t9 X7 @/ b, L- B/ Vset trade-record-one []$ O$ p" M" I0 e; `( ~
+ I# M M5 x4 `) n5 G ^1 `+ C1 mset trade-record-all n-values people [(list (? + 1) 0 0)] , Z# I+ J# H" A5 Q& {0 W
7 L. H0 Z& I1 f5 j* ?8 y( J, f$ Z
set trade-record-current []7 ?( }/ h1 d2 Z* Y& C$ C4 F
set credibility-receive []
: x& d! ^' t& I) p/ Q, ^& oset local-reputation 0.5
$ T6 [& J( E* Kset neighbor-total 0' M; ^+ u# X& }/ o! D4 z" x1 H
set trade-times-total 0
, |& Y7 d8 S$ t* Tset trade-money-total 0
) i# {: a: b7 A" Z/ c1 dset customer nobody* I U9 n1 d3 Q2 T8 r) P
set credibility-all n-values people [creat-credibility]6 E, u5 {8 P- ?- h
set credibility n-values people [-1]( s' B4 g. X7 F- _' U
get-color
- p9 f7 {* D; O3 k& b- [) X. k0 Y0 N( i
end
/ ^6 Z& M, a8 I5 k! z( t" J3 Z |$ \9 q+ j- c# J& [" m
to-report creat-credibility
: L, ]3 ] i Z, H* nreport n-values people [0.5]' s( O7 _' C* P- O( s& j
end
! `8 |+ O z+ O2 Y
& M/ Y$ {% e2 F' y8 \: Gto setup-plots8 I+ ~' @& C8 J# z6 e
5 T2 I$ H; q1 Y
set xmax 30
. W! q* q7 o# g+ q- a9 o1 v! f1 R% _- c) D& O' o
set ymax 1.0
- I4 V# j4 y9 A, a3 }
) J! q5 B: ` E, x4 z" L. }clear-all-plots
, D6 g* O( ]" X5 K
' T1 s' e" k' m% ksetup-plot1
$ e2 d8 m" M2 N% B- P( w, q' k: s" A! ]* h- w
setup-plot24 u* W! J- b' x h- P4 @
1 r, e- R1 i2 v) v0 e0 nsetup-plot39 O+ N- E2 @# J
end
' u0 W, z; `) P9 n2 J$ |
0 c, P7 g9 a1 k' R: {;;run time procedures
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to go7 A0 r* _- y% t
3 E0 C/ g! \. ^% J# \3 Q' `ask turtles [do-business]
. F! U1 W o# [ Q) S$ s7 tend& w+ P( v: G. H
( a+ M) j# D9 e* cto do-business
6 M* @% \5 } [: _+ {: ^5 ?4 w. C- |
) h# l6 A- K6 a# c- I& |
rt random 360
/ a+ x0 j, r; y2 t& [& E0 O$ b& ?3 B- j" c
fd 1$ {# H" e! ?% e
, }5 [( K. t/ Difelse(other turtles-here != nobody)[
! e5 H- _8 y. |) s
* v% Y* W- s. Z1 N) j; w3 qset customer one-of other turtles-here
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;; set [customer] of customer myself
2 [# @ h8 V' j3 m+ A) c3 v# o/ m! Z( y( t7 c
set [trade-record-one] of self item (([who] of customer) - 1)
! ~( o; T% D* d: r# S; c) a$ F[trade-record-all]of self
: x5 B* e+ d: n0 j5 v# W;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self* o' [" Z3 d K9 E6 o% l
% ^' o! r- K# B, ~0 h! wset [trade-record-one] of customer item (([who] of self) - 1)1 P. a" y9 d, {- `+ q6 z
[trade-record-all]of customer" V: ]$ z6 s6 B: z6 l- h8 p
6 P) a6 U% ^' \' {* J/ D' @6 p
set [trade-record-one-len] of self length [trade-record-one] of self
; ]/ V# _; p: G9 U: [3 E* h; c# p9 P7 M9 c
set trade-record-current( list (timer) (random money-upper-limit))4 K& f$ z2 J5 J5 `9 T/ ~+ f
, R6 ]4 _1 t. y1 [( Rask self [do-trust], d4 T- k6 L, X* K) O! T' _: Q
;;先求i对j的信任度( t+ |( C* `( \/ [
; T" w" e" t6 H+ b/ m
if ([trust-ok] of self)
& f- {7 h: m5 S) w$ B;;根据i对j的信任度来决定是否与j进行交易[
' u- s. }6 O4 i# i2 n( L1 [" Q6 Oask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself! N; g9 z; `5 U- }$ G2 [- N) {/ u
, ^ o3 y6 g2 |6 n5 J[6 @5 U# r( G! X, v3 ?3 w
- G) F7 L+ }8 v& Qdo-trade+ _" g$ ^8 \( T/ ~
$ P4 ^: u5 b# U! ~8 D o
update-credibility-ijl6 S: s& U* {/ [4 i% d* S3 z; V
; U: Z3 G; g* R: h' q
update-credibility-list
7 J* i! R% D1 q2 n- V! ]; \$ J3 C) p! q
$ K% `- W7 x- o3 t+ Q
update-global-reputation-list
4 p3 s/ c: k2 ~1 L$ j1 v n; v. V# K; N
poll-class
+ ~. h& J5 f2 h% L- v
+ \8 l8 L- A; F( _; iget-color
\+ @ Q+ Q# }: Z$ O5 \" i
2 z% n6 T! o; {& b]], \% m; ~- d" L# U0 B
. W. d$ K% U, @) D;;如果所得的信任度满足条件,则进行交易
% }3 _8 s9 v7 a: [3 @! Y
* y! k2 _( s# D0 B- E j8 w[
" O: B' y) r) ^
- ^& |# b1 C5 xrt random 360
7 z6 B" w v& m8 b t+ x' g4 q
& b! r- n" k; c9 [# a5 Bfd 1. r& F; |+ O" r8 v" U5 r2 v
/ H. W0 d1 C* t. }) ]]& R: t3 N0 [7 t9 }
7 h- t3 E3 s" @' S7 K' rend( c3 a9 A- J% G* N' R
# I' W# h! G0 S7 T( t! H: pto do-trust
, `- N2 o6 \8 R1 yset trust-ok False0 s; W" O/ U2 L9 c: n. Q( R
& a" O; ?" S/ B# J# W
+ K! I. o* `+ }
let max-trade-times 0
; ?( o' b8 o9 c8 S8 X: Kforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
' @3 _3 u4 h4 \. wlet max-trade-money 0! _" P) X z/ k3 Z$ v
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]. K9 h+ a- D" f$ V- E$ Q
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))$ S8 ~3 ?( y! U$ ^- A$ O/ q# A Z
7 v! y3 i P1 w k5 W
: z7 ^ W3 {# _4 @2 |; {' ]
get-global-proportion* N( L+ W4 {% V' T
let trust-value
# ~7 W& K3 u! P6 d) p" ?; V! xlocal-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- b; y! ?# L5 m' A8 N
if(trust-value > trade-trust-value)" J8 a) b! }. N# k) e* w. ^
[set trust-ok true]/ R( ?& O+ w& i1 ]
end: U3 o; E# M7 p4 P7 @" r$ [
* ?9 I7 O+ _7 t# I& `7 Ato get-global-proportion
9 E Y8 p" g, [; jifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
7 P7 w$ i% x9 X, y0 I[set global-proportion 0]: f$ |! |" K+ o! s# H* L1 A
[let i 0
9 H4 c1 `' L( f6 m1 m2 b, k; \; Ilet sum-money 0
; z/ _9 e3 B! Q" ?8 Vwhile[ i < people]' E) W# @6 |$ M q0 `: b& d
[9 K; M" t7 X3 N' [0 h
if( length (item i
' ~. c2 e) D" t7 G7 t: ][trade-record-all] of customer) > 3 )
2 f* H F$ d7 ^) U6 y8 b5 \, h1 z1 i[6 V$ ?* ^/ y" G/ |
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
8 i6 O9 F+ ]! W' |- a+ d# o* x]5 [. l( I/ g* M, t% x
]
& a E$ k/ x/ r/ ~9 t# T0 rlet j 0
2 g1 |( e9 f1 B N2 i/ ~- e: [let note 0
/ f y1 U; A4 |* Q1 E+ q, ^while[ j < people]/ o* d9 b0 ^1 M# h! ^! `8 g6 A( p
[3 Q: l' c7 X! B& A0 K$ f5 u
if( length (item i
+ m/ S; U' X. @/ P- v) y: s! s[trade-record-all] of customer) > 3 )
2 H& ^ @0 m0 i7 ?8 n( r[
# K7 I3 O0 O/ P, P2 \( @ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
( I, m6 c6 W% D+ R, v! u+ R* k[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]' R# H% A$ E% T" g( u5 Z' R
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
6 e1 `- R. b8 t, o3 u]
5 `* ^7 X" |6 [% j+ M/ P \3 b]6 w) }2 E2 I' g' t; m Q: ~
set global-proportion note" \, x5 G4 r4 U \9 {3 T9 A
]9 \) r( _1 M/ K5 r
end6 N. O9 V, L$ c- N5 c' o9 @
) ^1 T) \ v) @; e" k8 S- V
to do-trade' t# |, `+ X6 T1 Z* I) C
;;这个过程实际上是给双方作出评价的过程
v( Z9 v8 F" |0 hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
- I8 S! N4 @4 _# D) L% O# kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价- s% ?" d, Y! V: g8 }
set trade-record-current lput(timer) trade-record-current6 I+ ]' G$ b$ M: n( s% |; r
;;评价时间' P6 k9 M1 W' a, u: c7 J9 }6 ^+ q$ ^
ask myself [3 u# {7 i0 p, s& O+ `
update-local-reputation6 C4 w W# o. i- u; F8 {6 G3 a
set trade-record-current lput([local-reputation] of myself) trade-record-current0 }. o3 [' S/ F3 E# m5 {) W' z( R" B, B
]
3 Q0 c n4 `- O; j: ~set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself; t! v5 M5 d) }4 n8 C( G
;;将此次交易的记录加入到trade-record-one中' B& v+ L# f* j1 x2 {$ v" O
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 L2 p) u3 k1 Z- ilet note (item 2 trade-record-current )
# n1 f8 E' _+ E q& O' Q2 `" eset trade-record-current
@( T* y8 |$ }(replace-item 2 trade-record-current (item 3 trade-record-current))
, t& g7 i; W& t: h" F8 V4 Bset trade-record-current
& P: @, S6 x8 Q" s2 I(replace-item 3 trade-record-current note) c& i+ ~, F; ?8 E6 j
" u) l' n5 i) ^, K' i* L! @# k( Y
$ @# [- j' j! T2 d/ o9 N5 @
ask customer [
2 H& E0 s1 `1 a7 b5 e2 z& Y8 `, tupdate-local-reputation
4 T+ z, m3 Z8 B Hset trade-record-current
0 e9 f! g$ G7 g! ]; P(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
6 ?# U4 s& N) u! t2 T1 M( ]]
8 _& K: ]: v2 H- H" Y0 i2 |+ y0 h3 R
2 _$ o& s3 A, z; j5 h2 M; G2 f, f0 ^2 ^# @
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
@( `% t/ P' _! I) \9 _8 \) z
, `3 n& X' Y! |/ c% R& q0 Qset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))9 ^# m" U [7 _& c
;;将此次交易的记录加入到customer的trade-record-all中
8 T' G7 O( P, O# s% E( q( J7 {! Aend* K$ J: \* n6 G$ G" Z
% H# X- m: s: J5 P _7 D
to update-local-reputation
/ c0 W7 F8 w& ]. k9 iset [trade-record-one-len] of myself length [trade-record-one] of myself
& o& D, D/ |. I1 d: Q. U
/ [7 T3 M! {- ?0 t' T; O% K: T$ ]" D2 K! M& |
;;if [trade-record-one-len] of myself > 3
& c& F6 Z8 Y/ D2 I# {; B) W. aupdate-neighbor-total
N4 j/ _+ H/ Z4 `+ J- i& v;;更新邻居节点的数目,在此进行# }0 l Z% _5 O. l* v
let i 3( ?5 F+ c8 g$ C) C% E8 D1 N3 y/ F
let sum-time 0
1 L4 e5 [: B0 ~6 V- o) ^; Lwhile[i < [trade-record-one-len] of myself]
) U. k+ d: k- {" S[; E- f: \! P" V. g) ~
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
: I) W" y+ ]* ^) I* Lset i
6 G3 o0 d7 x# p$ s* D( i + 1)
' P/ e' Y+ `7 @7 C# x) v$ U]
& @, P# v# O' }$ xlet j 3
; b2 O7 L9 Y2 }' i6 L* J! _+ R+ d8 [let sum-money 0
+ E5 A+ J% H: J" Kwhile[j < [trade-record-one-len] of myself]- u8 Q% k/ y, Q0 O) d
[7 K) x/ ?, l9 |5 k0 s) W" ]! h& I
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)
/ C- A' v) F9 q4 `; j& w! uset j
- u$ j D3 q+ I- g( j + 1)+ U) c# z: n' e+ g
]
9 }7 |+ S& ]) |" z/ Mlet k 31 s2 A4 p3 x1 I# U" o% J A! B
let power 04 m9 }4 W3 E0 r6 b
let local 0; o) {6 E o9 o" E
while [k <[trade-record-one-len] of myself]
( N3 C7 q- {+ }[
4 z: U& n2 I1 ?+ I3 S5 V$ |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)
3 Z, Y1 n6 Z: T M5 T7 Lset k (k + 1)0 q5 d E- J! w7 q9 C( a
]; A8 a/ p$ m9 l' k
set [local-reputation] of myself (local), u3 H& @" g& t' r0 o" M3 K
end
7 O( C( m% t' q# I+ L$ b: a& R3 [4 g( y
to update-neighbor-total
/ e8 U$ ?* V- y8 J- K/ |8 N4 J3 d+ ~3 P1 b" `) `
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
! Q6 G* |: G7 d+ K1 }8 i$ m6 D8 f- P- p, j
1 T5 j! u3 Z) d d8 h0 Nend
o7 `. o0 R# g2 p
. h' m* b" N1 }5 q9 U bto update-credibility-ijl
N" i! y. L) T9 A+ t, v4 G0 W. ^0 W s9 P& I+ i( m- g
;;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。) V3 M, y- [) _$ a$ p8 _$ ~
let l 03 c- n# e) s* r0 g9 a
while[ l < people ]7 [8 S5 ^! V/ t4 B0 u9 h: [
;;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' F5 P% z& b2 s C: S5 q
[3 m% q: n- f: @; [! e# q
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)) S' P/ @5 W6 [& f% D" z, c- c
if (trade-record-one-j-l-len > 3)
0 e; F8 i/ f6 G4 k! u' d[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-one4 p0 [; R _3 N# y! P$ i
let i 3
) ?, G; n7 z9 u9 j3 elet sum-time 0
7 Y8 P+ u2 ~ ?8 ]) _% x3 cwhile[i < trade-record-one-len]
( y9 V4 {1 U! o2 w- R7 K3 O[
- V2 F8 R1 w& g! mset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 F8 @; _( V( ^* t% B- Yset i
# ? ~7 U! w. v7 R( i + 1)8 j1 z/ R/ _7 I
]
6 z: S) H3 s" O; L8 R: S9 n6 ~; z1 Wlet credibility-i-j-l 0
8 G' ~0 I7 _8 |0 U3 W;;i评价(j对jl的评价)1 K9 @! d q( t: [9 Y8 ]
let j 3
4 ?5 ~1 X' V! k% Llet k 4
$ t1 U% `5 @9 g& B6 M& pwhile[j < trade-record-one-len]0 t, s8 K9 x# S
[( B! A2 F: [$ t- E; w# ?* Z
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: A. D0 X& }1 V- {- H6 m6 R
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)# C# _0 Z* ], l7 g: n
set j
' |: H- l7 B R% |4 C. N( j + 1): r, Z. Z) a7 T' j9 d$ z) H
]
' F y2 K! K0 hset [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 ))
1 M6 H' R' s% T# _1 d+ B0 ]( H9 F) K5 t: b1 B# ~
, G8 h& t$ |# ^9 l; t
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))1 O" B6 R9 E( l
;;及时更新i对l的评价质量的评价- i1 O( F- n+ \) Q$ b' U: v! A6 r
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ], L# y! D2 g8 \; [/ l
set l (l + 1)
. \( N# u: O# M2 L8 U2 B) I]! i8 d ?4 K6 z: X" |/ x2 G! U- p5 y
end
8 Y+ B" q4 ~/ c! {& E/ j- M
) u( f: m: Y( G. L2 fto update-credibility-list
# ^, i4 |) t1 b1 s' ?- clet i 0
1 c: }$ \7 k: s- f* o; \- m wwhile[i < people]
5 z# T2 `/ k9 I- M8 F) Q[
: h7 h M8 g6 [let j 0
/ c& p/ l2 r* |6 _9 U T1 Blet note 06 S P4 d" V+ l0 b& `& v" C
let k 0
, S: l( c0 E3 T;;计作出过评价的邻居节点的数目
5 {1 y5 E1 K" Mwhile[j < people] \) s9 a2 P: K/ V
[
& u+ y/ _3 f( h4 q: I8 j* Qif (item j( [credibility] of turtle (i + 1)) != -1)
8 k6 y7 h' p8 S$ _% Q7 Q;;判断是否给本turtle的评价质量做出过评价的节点
( q5 J1 H9 I( M- ~( G1 t[set note (note + item j ([credibility]of turtle (i + 1)))8 l, k: N" F9 w3 B# p* e
;;*(exp (-(people - 2)))/(people - 2))]: }- U: J1 P3 }3 t4 H$ m: [
set k (k + 1)* E( _$ [2 }$ K# p0 _+ H
]' p, e0 `3 U. t, l
set j (j + 1)' T v: Q1 c: r, D% Z4 h* y' [# Q
]( Z3 P, V6 j# l6 m
set note (note *(exp (- (1 / k)))/ k)
: ~# i1 S5 h/ M9 Q1 ~7 Y4 eset credibility-list (replace-item i credibility-list note)
6 G9 W6 N3 b% Z0 @5 Gset i (i + 1)
' i' h( x8 g4 i]
1 W* p' B6 H: S% F* nend9 x: m/ |0 K, b% N: L* n1 u
. i- s/ p9 U/ B- Fto update-global-reputation-list2 A# P' A3 P" k
let j 0
6 Q. y, I% z% A0 Wwhile[j < people]. X( H4 Z( B( T7 K! `! ~5 _7 x
[
$ A; t0 X# Z1 P& z+ a. glet new 0
3 a4 L. x# Q; M. ?1 I& \;;暂存新的一个全局声誉
# Q& d1 Q8 z/ e8 f7 Q1 B3 @let i 0
2 r* k9 M& ?$ @1 X0 [. K) Klet sum-money 0
& S( g2 Q) W' b7 U# x1 nlet credibility-money 0
|3 c# v, B; g9 lwhile [i < people]
3 \6 D# h; o: \' i[
8 V o" x9 R6 o% ]+ a+ O$ Iset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
9 j% u4 A- `$ u, B$ {% Jset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))# f, m" L8 [. Y: R4 ?0 `/ @
set i (i + 1)
0 h- n& U( u" R7 ?% E/ v]- v8 u( ~! u d ]8 Z( c
let k 0
* U, x( z" W# i. k6 \let new1 0/ D2 l& ~& W' p1 p5 Y; I |% A. g, t
while [k < people]
& J6 q- ]8 m8 F[, u. n- ~8 h) B' P9 U
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 V/ k& i* i2 H- \
set k (k + 1)+ c2 p0 I Z1 n2 V8 S! e F" N( y
]
6 P* |4 C% M" j. U, n( Bset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! ]2 D7 S+ i( E' y9 A
set global-reputation-list (replace-item j global-reputation-list new)+ X& n% M! q" G- a& n# Y
set j (j + 1)
# r: `* C% h+ m9 ~( x0 K- D! b' I- M]
1 l5 [& q1 T [; n7 Hend$ M6 Z& f* v/ N7 y
% C5 ?% d- Z2 h# C( d) U4 d/ f; ^( G, w3 ^4 Z+ d4 _
9 K& b8 [2 i, Y+ b. _7 p6 [# ?! rto get-color
. v# B9 e1 d: h7 f" j/ A4 V! @) _+ m+ s; G# [. y4 P
set color blue
' j" c v2 ]# m/ send8 B8 h5 G4 ~; k# P8 ^( k6 t2 [3 r! D6 E
3 n! @3 W p" O+ F- r" `/ N& ~: b
to poll-class: U: H2 z, Z: \( S0 `$ Z1 s
end6 v2 a% \1 [! U6 K2 u
% B' F8 V, N3 R: h: O5 h
to setup-plot1% I9 R& m% o0 b, L
- }! z! O* b: u
set-current-plot "Trends-of-Local-reputation"! q$ D6 Y! X0 A
1 K+ J/ g* x2 }9 O! i5 j
set-plot-x-range 0 xmax
( w& B0 j9 P z' z
6 G. v7 T# A, x. X; E. `' b/ Pset-plot-y-range 0.0 ymax$ B) p; q- V9 e' S! c5 k! v
end
% ? O0 n/ i- I! X# U0 @9 Z
; }( y) [' f! h+ v% Ito setup-plot2% C% y) `: j/ B" k. w
^( B. c! B% R% N6 }$ W) {
set-current-plot "Trends-of-global-reputation"; i4 }8 ?) X$ R" b$ E; \! j
7 G; `3 o# O. Y
set-plot-x-range 0 xmax8 E; t0 `8 J* V( b; d9 E/ O
- b3 u" O' V$ X1 u6 J
set-plot-y-range 0.0 ymax3 C! z. V% l6 b1 ^2 b* n+ |, z
end
7 I; E' t4 X* b% S- K$ K
7 v+ S0 [& K* j8 Qto setup-plot3
9 X1 I/ p x+ U5 K, L
9 w! O; m$ L# C( c2 \ v& H( g) Qset-current-plot "Trends-of-credibility"
+ F9 q C0 K2 E2 _* ]) ~
6 _+ n# {& ^- m Wset-plot-x-range 0 xmax) G: |* S) |5 X
7 ^: H: \: n; o4 Rset-plot-y-range 0.0 ymax7 c8 l( ^+ \ ?: {$ D; z
end
' B( i b5 A4 f# i6 t6 j
7 d6 h# |/ x7 }! p3 D& ]2 oto do-plots: g8 |( x" m/ `2 X
set-current-plot "Trends-of-Local-reputation"
/ A0 O& ]* @% a( ?4 dset-current-plot-pen "Honest service"
6 G* m$ b7 Z8 c( [0 tend
6 ]( h) v0 Y) l" e$ E( l6 Y5 o. p% K- o( \# \$ \3 v
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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