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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
0 ?( r. b4 ]& M; e# `/ Yglobals[9 t9 P& D; Y* z
xmax' G0 V- o- c F1 N
ymax
1 R# d' t* H9 z1 n" }4 P. \, L3 dglobal-reputation-list
2 ?6 z4 f p" U, z$ d
' d; O3 a7 y& w;;每一个turtle的全局声誉都存在此LIST中: i4 v o) r' U( l; h& ^
credibility-list& Z& R! a' W9 }
;;每一个turtle的评价可信度
1 |# @ x; x6 g/ i- t, Vhonest-service2 e2 ~ F- H) J9 q: ^: k5 G
unhonest-service
2 z, e: R( T0 joscillation' C+ C9 @' C) b" Z/ e
rand-dynamic
, \, c$ p' \8 f& P1 P1 l( d7 S! ?]" y& Y1 I, i* m( N4 P- y& m
5 A: y/ l7 P3 [2 |, E7 u4 u2 D4 J
turtles-own[7 a+ I4 F; K% h- g' S' c9 E
trade-record-all4 e: F) D8 d# h3 @4 r3 k
;;a list of lists,由trade-record-one组成( w( f, Y y% \) I/ n
trade-record-one" g K5 z7 i5 ~# U6 n+ v8 W) q
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录- P0 P2 X$ ~, x
7 E% w0 ^& z- ~2 I0 W
;;[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]], E; ?$ L2 d* S9 M
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]
* ?. n6 _8 F5 b) _' K4 W/ }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
5 m8 n6 C2 ]' N0 i9 oneighbor-total
: c/ G1 B1 u. ^0 m4 I0 J0 s) e K;;记录该turtle的邻居节点的数目
& L1 U+ L! o/ a0 htrade-time
, ~9 ?! A6 y9 u4 W9 S5 d% J;;当前发生交易的turtle的交易时间
n. M& a+ j! F+ x8 W& ~1 e' Jappraise-give
" W2 e8 m# N" X% G- E( u;;当前发生交易时给出的评价
; L# c8 E, c c( [) iappraise-receive
1 m: Y1 v/ |- b;;当前发生交易时收到的评价2 ^2 p2 f7 s& J0 T$ l
appraise-time
2 {1 _6 i3 R" w* _) A;;当前发生交易时的评价时间+ @4 ]$ X2 h; c4 C3 D; d& ~
local-reputation-now;;此次交易后相对于对方turtle的局部声誉- \3 N+ Q1 C' L6 k) j% e
trade-times-total
2 s: `" r2 {, `$ b2 U; N;;与当前turtle的交易总次数6 [) F/ l# i- p
trade-money-total
6 U; |# `6 I3 [5 b% e& y* V;;与当前turtle的交易总金额
! }" ]. }' g. [2 d w7 `( I2 `local-reputation& _! S5 Z$ g; X8 k' x# S
global-reputation
( I3 L$ e( m# rcredibility7 p S5 s$ S3 w
;;评价可信度,每次交易后都需要更新. M" K# k9 a9 l1 e4 p, [
credibility-all
4 c% D' G6 V% c) c" f) q* h;;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 ]0 _' N% [" [9 V
$ N; I9 A) U$ ?9 f2 H; G2 T0 k
;;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
" b* A& R9 R/ Ccredibility-one' h5 T g0 C6 v- y6 ]2 z
;;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% b5 M& ?7 s& A: a( r7 k; Z" W0 ]+ @
global-proportion( n% T9 `& w8 h2 o
customer
% }& ~7 c" }, n( m* `customer-no# J6 u" I8 \, m+ R& @
trust-ok
! ]' K. P, A9 y8 y" u/ ptrade-record-one-len;;trade-record-one的长度, I' N5 w7 _ h5 n! y- w3 T( x
]3 X0 g1 G, k8 b" B( u& G) X
# W" R+ S ~, w;;setup procedure
/ ^" n6 D' V9 d1 x9 I) g5 E7 P O0 P3 T& p5 {
to setup' Y5 |- w: Z" N. Y/ [2 t
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ca: h, Q8 Q: P" U; b2 P$ r, d4 q
3 C0 ]1 t) t+ W
initialize-settings
: D% J q7 `8 w" F% T* P6 A( q: { J: u$ x C
crt people [setup-turtles]
; ~# `1 z( }- C6 l: B0 P/ i: U+ m9 Y) N4 d
reset-timer8 d6 W, ?+ I; b& K% o6 ]
; H( I, I0 C9 y! y
poll-class/ P1 O* G. O% U( E9 a
+ S; N% w; S4 Q- i6 m$ Csetup-plots
6 b- {: h$ ]. R/ W! L* k# A' s8 a7 o: x
do-plots* {& X4 U0 R$ ]7 Z' n
end
- V7 z( q" _" \9 U b: a- f! Y8 F& y
; Z; T5 s( ~' d6 \to initialize-settings
1 } {0 H( e1 o5 ^
8 D$ ]- Q+ c8 P+ Zset global-reputation-list []+ \/ p# z4 d8 R1 A; M. C# `
! m( F u$ @( G3 N# a9 \set credibility-list n-values people [0.5]8 |7 z- W D- X. i; [- z1 `/ |
c5 U# o7 Q4 o1 T0 kset honest-service 0. B( J' j0 K' Q# ]. a
/ }4 v" i* n* w( Z3 j
set unhonest-service 02 S: k- A- h0 u' Y
' j2 J4 M8 |" x( Z8 kset oscillation 0
* M3 f* |" M) | ?2 k. k. [/ U+ y! J6 P; q! ]+ C# r
set rand-dynamic 0$ P5 l7 Z( O: z5 A
end
- V# c0 Q! |$ G; w0 F; [2 a C! X
6 l, H8 _+ q& pto setup-turtles " J- x/ F( d2 H; B4 X
set shape "person"/ \: G8 Z4 i# O) z6 R
setxy random-xcor random-ycor
7 ?/ b$ L8 S7 f0 Uset trade-record-one []+ E1 v4 b; {' y! N/ ]% D: X
' t/ b( G/ k! I3 B1 l* H5 `1 _, `
set trade-record-all n-values people [(list (? + 1) 0 0)] 8 w% u6 K4 \9 u1 i& Y+ S
3 Q8 H9 C9 k/ v* tset trade-record-current []
7 [% [& p) \/ A$ Y, h8 \9 s# K& |set credibility-receive []; O+ \( d. G3 |0 A8 B+ h
set local-reputation 0.5+ ]* p% X- L/ E( e4 y, c4 J
set neighbor-total 0
4 M4 }9 Q; E9 E2 t8 m4 u8 i$ T cset trade-times-total 0
- l( n) x8 z# i6 J5 s- u) g5 K# Zset trade-money-total 0
2 I8 m; |8 g M1 Xset customer nobody
: ?( |* y% n8 u0 dset credibility-all n-values people [creat-credibility]; W+ L5 F& X4 A+ `. e; T5 Y
set credibility n-values people [-1]
- D, K2 M; F T2 h3 U3 `. g& ~get-color
% v: L4 c3 Q. _" x0 j/ R- d- B1 T% Q/ m7 e1 g3 L' v
end
# z# r) M6 u# H& e9 |4 t+ B Q
/ b( F2 ~7 G: Z1 d' Uto-report creat-credibility
. C7 s$ k% s4 n1 c: F9 ]report n-values people [0.5]' d3 G4 a) ?4 p2 m
end" R Q* A7 Z; K' K+ T* R
5 c9 ^2 H' B! I
to setup-plots5 F) v; E: O- t/ o: U- I* I
( X' Z* G/ o+ {; [$ u8 J; q
set xmax 30
' }2 D+ R0 |7 a4 Q, _9 C) _2 c9 R: G4 D6 a. ?( A. S
set ymax 1.0
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clear-all-plots
% ~% D1 Z, A# R; p+ p9 C h7 O; k# k3 a/ h5 H" `$ \- }
setup-plot1
$ G; B K: } j; ]8 }/ @
2 g& ?) D, s" ?# q- p' U) zsetup-plot2. l9 z- w" G& Q
: T5 ^; ]/ _1 h' \; I# {: W! Zsetup-plot3
! Y0 G8 I4 G! @5 nend
9 B1 P7 W1 O$ D/ @% L/ k* s$ K% Y' c+ I9 s3 E$ T
;;run time procedures7 I: `9 Q* ^+ I* k. p
. r. Z. f8 c' S4 gto go
! x& Y' d7 e2 v% l' d: o6 y$ G; w z/ u8 }
ask turtles [do-business]6 G4 w4 [: x0 t- \$ H
end! T8 E: t7 ?: K0 l z. {4 s
8 M8 c% m( }1 ^% {+ eto do-business . h; f6 a b! u$ q+ C3 w
# A" i* l( S f: M: z5 u- a1 i
% G) C( N4 Z, Z+ t9 art random 360
( F6 b- E; O$ Q( I. ?! m7 a2 U8 q5 Y& j7 i4 V
fd 1! N( _. d/ f% U0 c1 P, s
7 d S0 g: W: ]ifelse(other turtles-here != nobody)[9 O; i, {# V' }8 B
( j% L2 a% f9 d. o
set customer one-of other turtles-here
% ?" |1 p5 J0 X( H* Q3 A
/ l/ E B9 p; X2 `: p: q;; set [customer] of customer myself
% ?* A- L& @7 d) M" s9 q \+ V1 c" r# m2 |
set [trade-record-one] of self item (([who] of customer) - 1)
# u3 G( | L/ t% n1 }[trade-record-all]of self
- D8 ^1 ]) V: |- M" X;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
- U+ v. Z3 n# R( S' n
0 B& u5 m& Z6 }* uset [trade-record-one] of customer item (([who] of self) - 1)1 z" g4 b8 k& j5 ~
[trade-record-all]of customer' H/ W s- X! W% F2 b# N
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set [trade-record-one-len] of self length [trade-record-one] of self
' v* g8 G7 u% e4 Y- Y; s- h# g+ v0 O# ~" j0 C7 g
set trade-record-current( list (timer) (random money-upper-limit))
4 f" ^0 A+ x5 i$ F) y! |9 n4 \' t( X* m( j- B; u
ask self [do-trust]& b* {3 V. e( I4 G
;;先求i对j的信任度$ @8 Q' O& q6 h
/ p+ H( Z; l' O& r& p* wif ([trust-ok] of self)( K- M& p! z/ g% Y: [
;;根据i对j的信任度来决定是否与j进行交易[
k# ?( Q. B$ U F5 A H' Cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself& f0 q( S$ w2 s+ Q" y
1 z. P% \8 F% q! D& l
[
. W6 _) P' W& H! S) }8 A$ Y) @+ N9 v6 w5 h5 ]
do-trade
% x) o7 n' X5 s
% }; x4 t& |* H _, @1 M$ m8 Supdate-credibility-ijl' W1 m& `" k( r, `# C
/ `* g5 P. p* h) t0 y4 G" [8 f' F
update-credibility-list
2 Q7 ^) Z) r8 H5 f
5 x1 b1 Y; H. N/ l" J+ \. Z2 w7 J* I# V3 m0 v; \& \9 Q
update-global-reputation-list
& G. Q! k7 e j5 ?' D, `
, C: B Q$ V$ \3 j( X; [: _poll-class
9 s( i& A% T/ ]- s6 I+ q+ ?& M8 [6 x, r6 w0 }
get-color
% O2 K% a7 q" A% s9 M" P) \% b" G A; F- M3 f9 H! ^
]]" R9 R6 X8 A6 ?
9 m$ U$ C( L) `. Q W: |& S
;;如果所得的信任度满足条件,则进行交易
3 I5 f! C( e% t+ @3 ^% |( a# l: j+ p' b& e. O$ B# M
[" z" u% G; r, G( |) _# d
: L% }" A6 v5 W) F$ F: C
rt random 360
& [3 g& a" d' t! c! @& ~1 \- r& G" z" n7 G& u: I
fd 1 ^- ?' y! E8 J) m, I! q
+ m, x+ P" ^* F/ l/ z
]
) ?- A" }6 q9 C" f: A! X- l: b3 i, |$ g/ p' ?2 G0 G6 p! z$ R I
end
0 }. r, j' k5 Y* T( n0 O
I H8 L0 R+ G+ T1 s( bto do-trust . Q5 T& k- ? R Y
set trust-ok False
& W1 J) j* V9 }, p$ z% K
4 }' n9 N8 P# n) e$ h p6 a5 F5 e- l4 j2 u
let max-trade-times 0! }3 v4 [) A/ [& n! o
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]' [" t+ C5 f( h9 R r) ?/ K
let max-trade-money 0
$ ^7 K4 I5 h+ ~( W8 N1 s' \6 Oforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
9 k, W) o4 S( P) _7 K/ J7 \1 ^, T- Qlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
/ G: q2 e1 t* p' ` u. e, \
" S I+ s! d1 |4 U
7 ?2 d& _: |! C6 C& R- @1 vget-global-proportion
0 l i: i3 u* w8 G5 m; xlet trust-value
* c. f3 v, N5 C( T8 Klocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)+ t9 V+ c! n- o
if(trust-value > trade-trust-value)
0 ~( p* u2 a) b9 m: c8 n[set trust-ok true]
% }4 n% Y. X( U" k Bend
! h |: g+ m* L" ^
% \" ^3 R6 M9 ~* _to get-global-proportion4 ` i4 w# n1 M( X1 z w b4 s' d
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* ]! H" N7 M+ V7 K0 D. H
[set global-proportion 0]% B* ^4 g- E% D# t
[let i 0
% B( b2 K J7 e/ B0 Ulet sum-money 0
( s9 a7 y2 i& g* X) Kwhile[ i < people]
% V3 [8 _# \( w) t* U[
6 K! S! t- \+ f. X" N, vif( length (item i) ^2 O5 w6 w+ _" G7 g3 M
[trade-record-all] of customer) > 3 )
# U2 ?6 @# ~- V+ `! g( `[- P+ x; R( Z$ I3 ?
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))' e/ f! u3 _' ~ Q$ t2 h# R4 `* D
]
9 O, r8 Q* }5 W# l3 P]
' N6 [$ G6 S& m4 G- alet j 0$ R) y) M s( B$ {6 c% W1 ]
let note 0
9 i% w5 ?" Q- P3 j, u3 d4 c+ zwhile[ j < people]
- X' {! F5 E, H8 N3 { k5 S, K[
+ I/ S/ s% y* ?" M( w3 a7 z qif( length (item i
" z9 H, m6 C3 g[trade-record-all] of customer) > 3 )
: {3 [( s: z% U5 R) R[
! o, x1 V5 H( f3 h2 L1 x. V! Mifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
8 `8 U3 |# J: i% w0 R[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]* T2 J' {) X6 c2 V
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
; x. C0 h& B) \6 E: b' T: y. E]
2 O" _& r @3 m! I( H- v]
& M/ I9 h* B6 }# k+ `set global-proportion note
( C( _1 v' @& q! L1 d7 j]: ]* ?3 m% p0 }
end9 Y; E5 a) _4 L, u) S2 @
+ d! p+ Z* {& u) L) D8 a! | gto do-trade1 p# V( F& M7 B$ g: X
;;这个过程实际上是给双方作出评价的过程" ^ o+ m% v! G+ n- D
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
/ p, F: C- d4 @; M9 Y* D& y0 G+ rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
* Q1 r8 p. G+ F% A2 \% t; @$ L) ~- Cset trade-record-current lput(timer) trade-record-current* I& N6 K. K! t
;;评价时间4 X3 F+ O& Y3 c4 e6 I8 I8 d" y
ask myself [
( n$ A+ Y* c2 q3 y. _ c& jupdate-local-reputation8 W4 w h6 Y" X& u. D8 p
set trade-record-current lput([local-reputation] of myself) trade-record-current% p* |3 {% @& b+ }
]
9 M% a; P Z$ w! y4 h% K! jset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' v2 ~' r/ H# y% M: @- p
;;将此次交易的记录加入到trade-record-one中! H _( a6 X7 d( e0 W
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 P& T8 n7 P1 j- }5 V' @
let note (item 2 trade-record-current )
1 l. L4 r+ g: w9 d' G& lset trade-record-current
8 M, }' [ I! f! Z(replace-item 2 trade-record-current (item 3 trade-record-current))
" V3 {8 r/ U% \0 Xset trade-record-current
% l3 Q- u3 ]% r' X' k# c' \: s0 l# V(replace-item 3 trade-record-current note)* Y" |6 p% Z% X4 j/ L! @7 g
9 m; l0 Y [! `/ Q( T c
; O- K3 M$ f, T) j: Hask customer [
# M3 f) p. b) Tupdate-local-reputation" g9 V, H" J8 S0 @4 \# X/ c
set trade-record-current. E; s8 N3 ^' S
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 2 c6 F4 {% g% S( c
]: o, o6 l. H+ ^4 c
* }. D- `9 v0 h" j2 S: v5 T# l! B" ^' m% Y
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer" q! O- W/ B9 r- h
) W& [: |3 n& e+ u; o L' o( zset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
; \* F: K- \( h+ w/ j F& d;;将此次交易的记录加入到customer的trade-record-all中
, E7 w8 U( ^2 m, f$ y$ h" ~5 gend
- o1 }4 c* u0 D
! n' b2 F9 ?( n$ r$ u4 e. K: uto update-local-reputation
r9 \" R4 B- G4 T2 {+ zset [trade-record-one-len] of myself length [trade-record-one] of myself
9 k, \0 {% r: g3 k2 @( F( {: T5 V& C6 M0 u5 X
8 u( O5 M* d, J; v;;if [trade-record-one-len] of myself > 3 7 H; e+ d$ U6 M5 R1 I H2 d
update-neighbor-total
9 s+ @: u9 @% g, E;;更新邻居节点的数目,在此进行9 V+ ^' e2 u/ l
let i 3
" Z/ v3 E T# Llet sum-time 0
! ?6 n. W7 B8 h0 K j$ g/ r8 y' r0 \2 Dwhile[i < [trade-record-one-len] of myself]
) t& {- M5 \# P+ g* i) g0 S[8 [1 y- B$ m& N- D* q
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
. {* x- w1 C! Z$ t m6 e$ oset i8 J& o& M+ g" J3 H
( i + 1)' g$ S" Z. C. f, p
]8 d! L! T# w0 g$ z' U( ?7 }9 J+ U# A
let j 3- X3 z3 O: N/ }% m
let sum-money 0* ~: V/ h7 |9 L6 R6 I
while[j < [trade-record-one-len] of myself], e- w: e* o7 n6 T
[
7 L5 c% a' l. xset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)/ b2 A( e0 j; v- a
set j# G# s8 p, B6 `$ `0 G5 m
( j + 1)7 b/ F* i2 q9 Q: k3 p
]
. S1 Y8 _9 `, o2 xlet k 3
+ T& y k4 z/ X- \/ o" I6 f; l( I- vlet power 0
- p/ K" W2 `8 y; i& G# \let local 0
1 W5 I2 p, J9 |7 Lwhile [k <[trade-record-one-len] of myself]. @# _" N( p. T6 u9 `* m
[
; z/ h9 j; n, wset 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) , b. S' h' o/ R. U
set k (k + 1)) E8 ~0 a& x1 u' \* g9 T
]
4 d5 d+ S' {8 I$ ^set [local-reputation] of myself (local)- V4 s$ _4 V& v/ k1 [: F3 k# L
end0 `" T/ B8 `2 s- m: u; t
& C% p8 V A% L& h# g S
to update-neighbor-total$ f" ~! P! V: s& V
9 A# N% P% j7 o2 m1 s
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
! t' c5 c6 @7 j5 \! D$ f' ?. y* F
" N s8 e/ _: x, F7 P8 W0 x
+ {) a( \* Q) L I6 ~3 _; z! oend: T5 H; E; i& u3 e; q
! U# `$ u9 M2 j6 x: Dto update-credibility-ijl 5 g$ W9 t3 Y0 f* ] v9 c
4 l. ?( x$ [- q' X: F
;;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。
9 {! @, C$ U- D/ Ilet l 0
7 i v$ A. A' h$ ^while[ l < people ]6 I8 ^5 c! r ?. p: 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5 q8 ]1 a, B9 N; N/ z; j) i9 b0 I
[
8 x/ Z# c8 E' nlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)# N: |: q, \! ~/ J% k# m% `
if (trade-record-one-j-l-len > 3)4 M. U+ p/ Q3 R8 V# g& a! e0 b
[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-one0 k( O( [: X( b# v8 ]3 Y$ _
let i 3
1 B% O/ }( b% l. d! y4 { Tlet sum-time 0
* |! A- V: h# F8 K$ Awhile[i < trade-record-one-len]9 \" y" ~8 @" X+ X5 }& @: t k
[
; N! z8 z1 l# Nset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )& ~4 g( ~( B6 s3 t2 J1 O
set i- L; }) N. S; R- N* ^6 Z2 U" M
( i + 1)2 d' [% Z8 o2 d& x( v
]; Y/ G$ r" z$ ?8 S* ?; z8 K$ T
let credibility-i-j-l 0
; V7 I1 d, p. U* ?: V;;i评价(j对jl的评价)8 ]/ p# N9 \- H1 @. \2 g
let j 3' Q& p& Q9 Z C5 `6 Z; ]$ b
let k 4
$ M8 Z6 g$ _; t8 L- `4 Y: X/ W- Bwhile[j < trade-record-one-len]
; R! ]! ^* f' o. {; q* e[0 n: q1 y3 S5 F/ c. ~7 U2 @
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
" B2 O W1 ^) h5 A/ gset 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)
7 L9 A' T: {: f+ eset j
. I$ ~" O4 F& P( j + 1)! i" j6 Z0 T) q: U" @4 O8 _6 A
]
$ `) w3 w9 r. ?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 ))( t7 c3 v9 i& N
- h) D( | J* K; A
7 \6 A% _+ o( _8 O. Ulet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ j7 s1 q8 ?* e% O! Z7 S4 o0 ?% [;;及时更新i对l的评价质量的评价. ~! K1 c; h# \1 E' x# @7 z
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]/ h: f/ ^% j7 l0 i4 G, B' O
set l (l + 1)
( |' S# _: t+ ^( R* n* _- E/ p# C]
- l' h* z& p u' @1 q7 ]end8 l! B: d- s/ P( g2 Z9 [# Q8 v( t
6 `! s1 K$ K8 }. Cto update-credibility-list
+ o$ K. a3 r$ a" Klet i 06 i( n7 @4 B0 M. x( U4 R
while[i < people]- n: w' z: K+ f4 C& a* l8 ~* F
[
`" M& _% c/ W7 I! }: z5 m$ elet j 0
; L& X7 Z: P1 h# A8 _7 `: Ulet note 0
5 A- Z0 Q4 _) o( {9 }' `! R* vlet k 0
8 g8 i/ m7 c8 j- F/ ];;计作出过评价的邻居节点的数目
3 U: t e( h% E6 Z$ V+ hwhile[j < people]% C5 @' v+ h# T M/ N
[# m; b4 u& w- {7 a
if (item j( [credibility] of turtle (i + 1)) != -1)
4 m: U) R6 _, j; Q; o) L# {$ J;;判断是否给本turtle的评价质量做出过评价的节点5 B; _6 l% G9 h2 l% ^$ p
[set note (note + item j ([credibility]of turtle (i + 1)))- g- U( F$ D8 x3 h6 s6 d; I# v
;;*(exp (-(people - 2)))/(people - 2))]
5 A, l% h3 z+ Y" J. z" aset k (k + 1)
# } {. `7 W5 P5 V& D- M& k# \]5 x* z) ? T& c. H
set j (j + 1)8 n6 ^ s$ O4 v4 q4 k
]5 x* r8 \: [1 Z" n H) H/ f+ {1 p
set note (note *(exp (- (1 / k)))/ k)
7 G' X4 n% b" v8 hset credibility-list (replace-item i credibility-list note)
3 G8 \! b/ a/ `; U5 l, N# ]1 Sset i (i + 1)
5 A& I7 l8 F" |% P' T]: |2 B6 O: j% e; v: x
end
" S/ L" ?9 b% l) ]3 G: M; [ D( `0 p1 [% G% j- w0 @: |
to update-global-reputation-list) @: g3 a5 P! S+ X% ^, Z7 r
let j 0
8 l" c2 z1 ^8 x9 O& e: u/ Z1 [ Swhile[j < people]
8 |+ A1 n: q+ m2 P8 w[
0 p7 v2 W m. S. S- Y1 klet new 0
/ }& [5 } ]5 s+ m. h. R* _;;暂存新的一个全局声誉 l5 U2 M# c* @% s
let i 0' q8 [5 r+ J7 e R3 w, L% c7 ]
let sum-money 0
* _, C+ N4 E7 l1 @; d, J# \let credibility-money 0
$ A: x" e. I# a9 Wwhile [i < people]
" p4 Z& W5 H- } F. i2 H' t- P5 _[- H' H" b8 D9 D) e
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) z" y5 J$ i) l0 A( Uset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))+ D% P: Q4 Q5 O* O( I
set i (i + 1)
t4 D( l4 T2 ^: u$ N1 `" R]/ O5 f! s# ]3 b4 z6 q4 U
let k 0, t' t& }2 k5 h1 c# Z
let new1 08 J* S% x8 O" v1 _( ^; x3 ~& d
while [k < people] ~/ C1 \; Q' y' F" i# w
[
/ M/ |3 v+ q" ]) e0 ]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 k2 @0 c6 _, F9 S9 g! B( _5 Uset k (k + 1)
4 a& r' @7 e% w% `]
5 {* n' _% O4 m+ Mset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ) | I. ?4 N& d/ c5 `
set global-reputation-list (replace-item j global-reputation-list new)' l t |$ Y6 E+ c% T
set j (j + 1)
$ E$ {3 B1 |( v# C]
. v, m) K% ~: {. `0 ?- I5 Hend
/ ~- f# E7 T! s0 ]1 I& m% D. \& g1 u) o" `9 ~4 R) b7 y
9 @" F! Y& S- U D
- R. P ^0 v2 I; E! Cto get-color1 b, M" Z* a- F' I+ O7 P6 J
. B) Y4 v4 T7 c5 W# f! y6 zset color blue
$ M' Q% T+ s d( r2 j- Zend
, m" K: z$ n7 _/ [
0 k" `. i, w3 M) ?7 T7 X5 |. O9 zto poll-class! |: i) Z- I. f+ k4 x
end
- r8 A% c4 B; x( L6 j0 V9 a' I D; Y
to setup-plot16 \% `" N: T; R. L
/ \( A4 f7 \, Kset-current-plot "Trends-of-Local-reputation"& Q; J4 L2 j. ~& @% j u
# [" h- I( i0 \" Sset-plot-x-range 0 xmax( J) c# x6 M- U. }8 g2 ~- O' [
( F0 n# S: j, d0 l; ]$ {5 q5 uset-plot-y-range 0.0 ymax5 l( h( o+ y ]8 m" r1 ^8 z! d
end" q& S0 c2 o" \ z
- C# D& E0 i8 F; l# h
to setup-plot2 \3 o2 c: _! N9 Z0 Y/ Y
' B9 U4 P, `7 W5 N+ O% vset-current-plot "Trends-of-global-reputation"- E7 u3 j. h" {
6 H% k( Z2 ?5 r2 y1 bset-plot-x-range 0 xmax2 r& Y1 K+ `" `5 W
4 E$ W9 F( b& g; n% Hset-plot-y-range 0.0 ymax
% p$ { l( S' g9 @# G4 cend E' x/ q9 y: L3 L3 c
+ d2 J3 B2 ~9 J1 u# o* h
to setup-plot32 y/ N2 k" E2 H o
3 Q5 E8 W& j m* E
set-current-plot "Trends-of-credibility"9 h' L$ B9 z# S$ O) q7 v
( @5 R6 C* r6 n$ ~" }1 X
set-plot-x-range 0 xmax
* U0 Z% t y' i1 m
+ q8 [/ @! _, ]: d% ], O3 @7 |9 n, sset-plot-y-range 0.0 ymax- L& h* g# c9 x& p9 q% g
end, Y2 \2 b6 f, l( ~! F- `& j. r
: l$ Q. u/ Q \ n2 j$ P
to do-plots
4 d2 t a+ o2 m3 @set-current-plot "Trends-of-Local-reputation"
( b _4 }( u; {set-current-plot-pen "Honest service". z' l0 J7 B& ]$ z* ^
end
5 q) E0 @5 i$ L! A' |- e
8 O( y, H) F5 p8 Z0 X8 `( {+ \[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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