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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: R: h5 V# g5 m* f: M% ~+ X/ t
globals[: R) Q9 f t, P9 q- O
xmax
2 Y& h) b" ~1 cymax
6 F9 Y. l- B8 a1 o, o- {global-reputation-list
- P; O& C- [. x, ] v# [( p( E% H: h6 D: \+ T4 T$ n5 ^
;;每一个turtle的全局声誉都存在此LIST中2 l# c& R9 N- _( T5 K
credibility-list
* i' O6 O" H, O7 o;;每一个turtle的评价可信度
+ Q" v, s, v* D- ]8 Fhonest-service) e/ M5 A/ C1 d) y0 ~) X
unhonest-service
& j5 o5 g: [4 j" e' `! Z& h) [$ Noscillation2 H( |/ b8 l! p; f( \
rand-dynamic
. r2 `( o4 o5 H# M* Z, |$ _, o- g]
/ I1 u m% ^" J, h' K$ \& ~' Z# F" M0 @8 ~
turtles-own[
( o+ z; g- f" Q* {8 w6 n! H; Wtrade-record-all T8 Y4 T' K, x: e( {/ W8 t
;;a list of lists,由trade-record-one组成( _; F" i/ _3 ^9 Q4 U& {! v7 z. Y. ?; B
trade-record-one7 F4 L* l0 d; o* 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" j5 v! k4 d, n, d$ W9 _
2 f2 o. Y& \! m/ w# f& \, @;;[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]]
; ~' o2 b, H+ l( ?4 c( Z) B' Itrade-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 x% J8 V+ v0 }" Z% d0 y" _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* n& O8 H7 G. j3 g x' W! h6 R. O
neighbor-total1 L6 t% H' t8 B+ N2 z" B( I
;;记录该turtle的邻居节点的数目2 p$ t1 Z7 g+ F0 F9 p
trade-time# w& j9 l" ~6 k2 T# G0 l
;;当前发生交易的turtle的交易时间
$ { t; B6 k* W9 `4 Tappraise-give/ c- d. p. c! a; Q
;;当前发生交易时给出的评价/ h' K: i T, v$ n; K0 n9 Y3 b
appraise-receive
1 w0 q* B s/ w# T;;当前发生交易时收到的评价
* l# v2 Q, e! O' B, C4 d9 Vappraise-time% a5 t, U9 q9 B! G+ W( m# o4 y; C
;;当前发生交易时的评价时间
* N- a% ~# E! G& L3 ?local-reputation-now;;此次交易后相对于对方turtle的局部声誉5 f) G% _1 c$ t. P# E* F
trade-times-total
' K7 n# ?& h" }( E/ C* B;;与当前turtle的交易总次数
2 T% I7 L) L ?2 P% [; y* Ttrade-money-total
- [0 p7 [; X X+ B d) A) Q( R7 j9 |;;与当前turtle的交易总金额
) r$ n, o6 F3 xlocal-reputation1 d3 {2 C6 T6 Z
global-reputation
! ]4 }( W6 k. x8 i% A) Gcredibility% v* R( O" A/ S0 [& x# y% `5 y
;;评价可信度,每次交易后都需要更新
H9 L) L* N9 i, O7 y5 ycredibility-all
* B" o+ P6 D7 R8 l% W' w;;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
! L- I5 C% S2 [, M0 q) ^
( _; S# {) g& }3 i;;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) \# {( M5 ~ G S& u6 |
credibility-one
* w, e' o# v: V. {; q, 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
+ s. o- t% K" a6 f9 W1 Z Nglobal-proportion" v- \* N( I7 {8 B6 Y
customer" d1 h6 ~0 _2 E
customer-no
5 U( a6 x- z7 [- }3 I* ktrust-ok) A5 j6 `6 C& U" V( w, V; h# r
trade-record-one-len;;trade-record-one的长度* v Q1 g) o" ^7 A1 k( H
]
. M ~9 I5 w4 d" p' Y3 }+ R$ \3 T# A T. V( r
;;setup procedure: B U7 I: a, ]" |7 R- L
/ X* j7 b9 z/ Mto setup) W$ W1 E! X' A2 n/ c3 w) V' [" V
' ?3 w: s9 ?3 Aca% J% y( v9 K9 y3 ?
. P0 ~4 N7 @/ ^# W1 Finitialize-settings. b% S7 U; ?( ?& M/ j( x" s7 n
% m- v8 t' |/ R* l; a8 p a" m; Y3 n3 E
crt people [setup-turtles]1 |/ p0 e! }6 b. d0 Z0 y n+ [- ]6 ]
4 p4 @2 n9 F X1 i9 P$ _1 O
reset-timer/ `/ N: j) Y' [, f- a; @
$ \8 B" V& X+ k# `0 I' S
poll-class
8 o0 [; p3 J1 a; v- y( G# u" {% F4 `2 m
setup-plots
. _+ C/ s' B# x% p% W) X6 l7 Y! o* O9 T
do-plots2 O. Y2 `6 m0 q" X0 K
end6 ~' d6 h$ z8 x! _* Z2 i
# W7 I2 S5 N& @+ j7 p2 S
to initialize-settings4 E* A. r1 M) X r
8 z6 l1 e* q0 E; M8 W$ ^set global-reputation-list []0 t# i# h1 |! t# @( y
3 j* Z9 m/ `6 O8 h: z& E) Zset credibility-list n-values people [0.5]& v0 Y* j3 U, J. B' {
) b/ {, _/ |# o' \1 P
set honest-service 0! W" [* H0 K1 W
1 Q; d8 Z' a ]9 G. Kset unhonest-service 06 o( o8 q+ M- q1 `
9 c0 n$ w; |5 J" t) t+ W
set oscillation 0
* a) F8 C; H5 ^- P
0 Z3 Y7 ?# H5 dset rand-dynamic 0
b' q3 G( n9 hend5 c) E6 Y) H! ?* z
. p- \" _ |3 M! D. T! T: Z2 Hto setup-turtles
! |6 b1 h% N" O# T5 m' t. w$ \5 `set shape "person"% G+ y& w {9 M: ~
setxy random-xcor random-ycor
* z- k/ q1 w4 ^set trade-record-one []
) F1 r& e# d4 n* \! B0 h. J
+ r+ P, y. h& z$ z) ~8 Wset trade-record-all n-values people [(list (? + 1) 0 0)] ) `3 u/ z* w3 F( F+ p
4 E7 d% w& j: P- h, M" O* m
set trade-record-current []4 d- ?+ i' z) r* e
set credibility-receive []/ L4 q$ R1 X& m" _ { q: |5 s* T
set local-reputation 0.51 v$ m5 \* m: J- p a; n& M
set neighbor-total 0( ~4 x. ~; k" A$ e
set trade-times-total 0
+ {6 v! `9 S g. @set trade-money-total 0' w! R& W/ I# \2 M# |' E
set customer nobody
+ D& d! q/ i9 L3 g0 \set credibility-all n-values people [creat-credibility]/ G; C$ T0 ~" R b7 U ?
set credibility n-values people [-1]( L! r: D3 w4 @" {# |" U
get-color# \+ e& P0 r% k' i) S# X
+ D1 y: B9 [' C4 \9 Q
end# M8 Q" p. A: z, ~ s
6 f7 r5 z5 m7 v8 b# s6 i$ C
to-report creat-credibility
. c# m; t+ F. E. v4 rreport n-values people [0.5]* v% Z; z7 i3 W
end: V" E9 M; B5 t l
5 o: r1 T) K8 @/ ^: J8 B
to setup-plots
5 F* y! q0 u& x# i; H; i6 ~5 g
& |4 h# e% J a# Sset xmax 30( S+ z! v5 u$ r# X: M: R0 p |4 }
9 _$ Z9 F. I3 }6 V9 ^set ymax 1.0
, U( J; c: w5 K4 K& H$ P0 W/ n% [- c O, p q, {5 w
clear-all-plots
! ^& M( K+ Z/ _2 O- Y9 }. l- S/ D/ v' d
setup-plot1
! p0 X- b7 w; d: k- J8 A/ R# r2 ?& o9 U5 }+ h) B. \
setup-plot2
& F ^; ~5 J& z, y {( g) I+ o: Z' {6 `
setup-plot38 L! G4 D1 J8 Z
end
) z- H9 d# n# Q8 b0 _, t, J( o. G( G/ c- m7 a* l- E
;;run time procedures% \# T# t5 e7 c! i2 i/ e1 J" A
L- k" U6 h* Y" s
to go
" V, A5 \1 M& v5 z5 _, v4 |7 ~" ]& T w& d
ask turtles [do-business]1 S0 \9 B3 E1 ~+ s9 W+ s) s& V- R$ I
end- C& _% V- `7 A& Y% j+ d7 J
p" q8 G& ] g `5 r8 d. o, A4 D
to do-business
: E! y$ W, S* @" b) E6 G" v* ~: S! A$ F; u3 [1 A* L
, c& H9 x3 U0 Q- n$ A& H/ p; Art random 3605 J: ~+ V* }/ w/ q$ q+ u, J6 w; u
. G3 y- A& b2 y1 V8 y7 d
fd 1
A/ E/ _5 [5 J, c7 M
2 X0 L! S+ Q' R! ?/ bifelse(other turtles-here != nobody)[
; q& D" R' ]# |( A
' F5 v. H2 v. m% y. a6 o' Yset customer one-of other turtles-here
: ?$ m/ d# }0 {6 G
' T" J8 b9 g) e3 z1 x& b;; set [customer] of customer myself5 J, `9 g& O. E$ G+ P+ b% ?
! `2 f) }) v' t- \- Wset [trade-record-one] of self item (([who] of customer) - 1)
% {# O8 a2 M" d' \. K# |& {[trade-record-all]of self, Z. ]7 v6 E c- \. Z
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) h) G. c, g, d7 W: J
% H$ E) a: T; Eset [trade-record-one] of customer item (([who] of self) - 1)
Y* i+ L% F" g0 ?, w! A& Y. D4 z, X[trade-record-all]of customer3 Q4 [9 s3 b5 l; ^4 z# q+ }) J) X" C
/ }1 D4 I( d: ] z
set [trade-record-one-len] of self length [trade-record-one] of self, a: B" r. {* q% V/ H; z$ R
; a& q7 F: {; |set trade-record-current( list (timer) (random money-upper-limit)): N' \" \, a* J# C: u' Y
7 g: U" U" k, _- H! E- N; ~! {
ask self [do-trust]
( a& i& j9 _( W) T1 A# r;;先求i对j的信任度- M8 d9 I: ^: w5 M. R; }
$ N8 i7 r% N7 ?# z* E3 ]( ~
if ([trust-ok] of self)# \( C* ^# A E
;;根据i对j的信任度来决定是否与j进行交易[( S) V( S- U) g P; h/ i/ }1 S
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
1 v2 V1 {; Z* C; [" J! ]& x
/ O9 b1 ]) u7 A0 u0 {[ r$ Z1 Z7 m1 P- t4 F; [/ O3 r9 |
( K9 f1 w* T. {8 T6 `3 ado-trade4 Q- p$ V) r' z. L7 d. U: K. u
" l1 @) O, C9 j8 L/ tupdate-credibility-ijl
5 w" H8 ^: E% M+ E% D' ]7 ~5 K$ q7 d( q) q+ r# a0 O8 [- I
update-credibility-list
3 ^. C( E# ]) e& E! M$ e1 y
. E" g* l: x2 u9 r, d. g
: `6 Z1 o/ i7 Y2 O5 j! hupdate-global-reputation-list: [; N2 g! H, W8 k) a7 w3 A# n
3 G+ C2 X# {) H) S+ W" f
poll-class! w/ u2 G. ^. Y
5 ^7 b& U) l! H( f$ Q1 T! V7 P
get-color' ~* p1 j9 W. b' d
( J( b' V3 s& N& v+ a H K2 X$ l' b
]]
0 E$ n/ L- Y/ v" e/ `- x& C L% V* Q8 d* M! @0 ?" e. {2 F* d
;;如果所得的信任度满足条件,则进行交易
, ?5 j W0 D2 x! x; o1 n! M5 e( h2 ^$ x! Q6 P* ]1 j# {
[4 K$ X( s S& q
$ ?& [# K, g( S4 f9 ?/ z0 T6 p
rt random 3602 c' q8 t" L# f7 a
" g3 d4 g( d) U( b+ L& K5 \
fd 1
2 B8 O5 Y3 B# b: E& d4 l8 e* ~* P5 ~" e# h8 |
]& O- [! s. s: [5 `# t# x: V
, T% V( l; i+ iend
1 O0 G5 G$ Y/ V& C1 Z
; s, R$ m9 D7 p n N. ?to do-trust 2 G( h4 s3 s7 t+ j% F3 h! ]
set trust-ok False/ f v' f3 G5 T; V! D+ @4 x
# e. j* Z! n% ]# j+ c5 T0 n {
( e5 j8 P; j3 ^; @0 i( h5 W
let max-trade-times 06 K* B4 @& H0 L B
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]% S1 M/ F, P$ R) I' d
let max-trade-money 0/ @$ x$ k3 G1 I. U8 J* h4 {' m
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ j; k8 ?6 k. A1 B. E
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
$ H2 q! T! M9 e6 k' n6 B c/ q- {/ |9 ^; y2 T
8 b @3 u) [# M5 K% Aget-global-proportion4 o+ E4 D* ^1 w) X( ?8 F5 k
let trust-value
* N, S" O$ v' ^4 H, |( y& u. B+ `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)
+ n; h0 |" p _: C4 D9 n# }if(trust-value > trade-trust-value)9 \& f% U- v# @* Y s: R8 c
[set trust-ok true], y/ |+ V9 a) p" c
end( f* Z* K1 w7 Z7 j3 y
5 V' W' {2 ~3 j+ w$ _7 J* l3 F1 Y* ~to get-global-proportion/ [9 e" ~1 f5 V3 M1 z
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
2 B5 H8 Q$ r) f# L1 n[set global-proportion 0]+ @, B. e: q6 E( g
[let i 0
8 S+ H7 n/ G. w# P, p6 T5 k# P zlet sum-money 0& ]0 ]8 N- |' v# ?8 v6 P
while[ i < people]
# F: M8 A$ l' O1 v2 y$ z- [8 @[
7 S1 |! @% U; B3 H, _if( length (item i
9 x' y9 Q- P: N[trade-record-all] of customer) > 3 )
$ W* O- A# E) {+ d8 B[% r* {7 K9 Z3 Y; g4 }1 J
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)): Q" B6 h) U* J: F# s
]
7 y% t, }% i9 Q# []
( W1 w0 o5 G# k" Y5 Rlet j 0
n/ |+ l& F! j9 m8 V* Elet note 0( M: d" c1 S- s' g2 ?! t2 ?
while[ j < people]6 ] u2 _; w% r# I
[
9 B6 O3 ^2 }# {! Y: a. n6 Fif( length (item i5 @7 w c; e0 ^9 M
[trade-record-all] of customer) > 3 )
E* |1 ?# d' ?! C[' A2 f; J3 |. T& w% }' \
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
+ C$ l2 s4 n% |6 x5 J$ z3 g5 i8 S[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]7 L! \+ j9 U2 Y/ C. O! q" w" K
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]4 W N) L P; c: \; s
]
- h/ s7 B3 J5 k' `5 n7 Q]
3 |( K; l$ t( a K. ]set global-proportion note7 j1 V" ^* A3 U3 h% @: j. @% P
]; R7 O9 e$ o, J& j( x3 J
end
: `/ ^+ B& x# Z
; J* Z% T# c4 ~5 {5 eto do-trade
9 l& ~: b" N) r2 @;;这个过程实际上是给双方作出评价的过程
) Q8 {, e6 R H9 Rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价5 ?; D2 t* u" q; Z5 O
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( v4 I4 T# u8 K8 O3 T0 E* c4 a
set trade-record-current lput(timer) trade-record-current
5 S, Z5 ]. |9 V# A/ r' {; A;;评价时间
% S0 @% F, {3 y# S! T* s/ uask myself [
& g7 i, t, n3 j7 y- vupdate-local-reputation
+ J `) ~4 E$ c4 Tset trade-record-current lput([local-reputation] of myself) trade-record-current
# B6 g [2 _- \% q2 ?) t$ E4 a]1 @+ p) T: b r# ~- s7 q
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
& |" S; d! u3 q& Z;;将此次交易的记录加入到trade-record-one中1 r. C% d5 O- x; I
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 L) l# V' R# q" ilet note (item 2 trade-record-current )+ R; `6 \+ x$ Z/ D/ W3 {
set trade-record-current
3 b6 y2 H3 H3 A9 A(replace-item 2 trade-record-current (item 3 trade-record-current))
/ D0 u) ?6 A& Q9 M9 i) rset trade-record-current
9 c! ] `/ u' y, s1 y(replace-item 3 trade-record-current note)
0 a U- u' P1 l5 E$ h+ w2 P
% d9 X Y4 Y' T% X% H. X3 i- ~8 j4 ?* O# o# C K8 [
ask customer [
; T3 \7 R/ h1 B& o, U- z6 dupdate-local-reputation1 f( ~' h" ]" z
set trade-record-current& n- @& Y0 l+ ~: d, G& @; Y
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 p' Q; g4 i# W+ C B]
3 |5 z4 `( N& _: b+ q* }6 R2 m* a, \, e3 H! ]* m- h3 h. y
% d x/ \2 M F& b- Iset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer% U+ X d7 j3 y' {
, B8 i3 P% D: i5 W3 M8 `7 V
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
' N4 Y# d/ B0 c- H4 t1 \;;将此次交易的记录加入到customer的trade-record-all中2 k: n. U+ O9 {* ]: X% W7 [
end3 Y$ x+ u0 R4 i9 X' U. n/ n/ V
* L! R- P% H, K( u8 _1 l$ ato update-local-reputation5 Z1 k+ H W1 [; S
set [trade-record-one-len] of myself length [trade-record-one] of myself0 w2 [ B- C# K* c* D9 D- I
+ T* t. {/ E2 I
) }- { f. y. {. I+ E4 ]& ^;;if [trade-record-one-len] of myself > 3
9 m) s. @; `, A% Qupdate-neighbor-total
5 r3 O' {& w1 m) ~;;更新邻居节点的数目,在此进行4 g4 `/ Y4 j1 \5 ]
let i 3" Z* M# F/ f1 b/ v8 I/ s9 t
let sum-time 0& q; s" A4 C0 ^) J
while[i < [trade-record-one-len] of myself]
8 d& _/ W- f2 K, j[
% ^1 |- j# }; p. K1 }3 x! x' Nset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
7 q" D/ F/ r9 O$ b. N0 uset i
$ `# a$ Q5 e ?1 c" a( b; w! l( i + 1)( Y$ G ^1 I) q+ v
]
( q& y1 O5 N6 e, y! o6 Glet j 3
: x+ @2 {8 y% U0 q$ t; e4 }let sum-money 0
: s: D9 V) m1 iwhile[j < [trade-record-one-len] of myself]- h" e8 m6 W% w$ B: N1 y
[
- E+ S8 s* U% `- 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)
* {& @' m6 V5 ^: ]" Nset j
7 J0 w# N, ~( l; w( j + 1)
! m L0 h5 X/ O]
: u6 ^5 D0 r6 e9 Q3 M' m1 p; plet k 3, x8 j- D4 J7 S1 l- ?: |! b8 J
let power 0
" I M; X3 `" N, elet local 0
0 G Y4 n9 f$ y! ?) ^ B, Rwhile [k <[trade-record-one-len] of myself]
- s; p a' \ P4 C3 V[
1 Y% E$ r7 D5 G- l+ ~6 O$ [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) + j0 }, j1 b- d) S
set k (k + 1)
% T( O% J6 J' P! d$ B' N]
' h% V+ U9 C, m3 L9 cset [local-reputation] of myself (local)
/ b6 f& G: k- O! T& _4 Tend1 a& |% e: A0 g4 ~ U& z) N9 p
( G9 w. N: q" n+ G& N. C3 T. T8 ]
to update-neighbor-total5 n. V& a0 v( z7 D# A0 S6 a
& a* U3 k7 e( A4 P: fif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ], R# Z7 A8 I! \0 w4 A2 J4 g
0 o) ]& n! q* R9 \
7 S) R, ^- u/ u7 i
end
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to update-credibility-ijl 9 x* U! F$ J, G( L
% \6 @& e2 E5 G5 d
;;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。! s4 I% T: X% M
let l 0* p7 e( \% v8 u- P7 |
while[ l < people ]. z6 y& V2 s% `9 D+ 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
5 x; k' [( @9 \7 e! S" q( l9 x[
6 N+ C+ `5 ]9 plet trade-record-one-j-l-len length item l ([trade-record-all] of customer)' i: u; L# n' _3 M6 k% n) w+ o$ b8 f
if (trade-record-one-j-l-len > 3)
' n0 j. L. L# q* V9 H7 e[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$ v' s! ^9 R7 T/ d! |" K0 Y! @
let i 3
) R3 V( a& Q1 W& I% [+ T9 v, y2 tlet sum-time 0
+ K, r& \6 t c2 g. Fwhile[i < trade-record-one-len]$ x8 _/ A6 i' A+ o0 t
[$ u# ?1 F( _& U
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 ]& ^2 n. d2 \$ w4 m! p6 a; Mset i
1 s: k1 F2 J% _( i + 1)
6 ?$ C) C H6 K) \ r]
+ R% D0 V0 F: j" Hlet credibility-i-j-l 0
; n$ g; b1 t- }1 m% f2 W( G, y2 W( ];;i评价(j对jl的评价)0 i! G0 c8 W4 a
let j 37 f7 B: d3 y& Y( L/ k. D& Z
let k 4
2 v( d. G; j7 B8 q$ X5 nwhile[j < trade-record-one-len]
. v' F4 }; w3 _( L1 A[
2 U8 R. |! a) k V) `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; F) {7 P5 F6 Z6 }) |
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)
4 C+ Q# |& S M, K" n+ ^set j+ T/ |! o `8 ?, P- E! e
( j + 1)1 w( R4 G' E& P+ B# Y4 V* U, _8 ~
]
- N; {& c8 L( f+ q# Z0 o! _4 ?+ Rset [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 ))
. E" ^9 h6 R0 H, ?( J* M1 L2 ?/ T( D" Z
; V7 M: \" H. Z& G4 i
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))( B+ j" }. D8 d, B
;;及时更新i对l的评价质量的评价
4 p0 }7 B' ?7 l: C- } h- wset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
/ o9 E2 m; N/ ^$ s( Iset l (l + 1) @1 Y5 h3 a+ x% ^: x7 o
]' D+ c% p9 o# c* Q
end
' [5 k$ u {& r( k M: @7 P1 }- m" e& U! w3 G) ~
to update-credibility-list
) [6 r1 o( u( I# c8 Dlet i 0
! r; l2 S. h& G0 o6 J0 K. O+ x5 z% Zwhile[i < people]7 p0 X) u) f; y- l5 x( R
[
6 B4 }3 D( E5 e3 G C, jlet j 0
, {9 d. y$ H0 {' k: Wlet note 0
% X) z6 [5 w* Glet k 05 A7 N$ p+ R7 u
;;计作出过评价的邻居节点的数目
, y8 |1 u; R5 v2 Iwhile[j < people]# p0 E3 i" P. U/ w7 Z/ R
[
/ y' D) ?7 f% f6 M& s1 Eif (item j( [credibility] of turtle (i + 1)) != -1)
) w) t% k9 z- @' ]! x;;判断是否给本turtle的评价质量做出过评价的节点
* X0 c7 J$ m, a o6 B[set note (note + item j ([credibility]of turtle (i + 1)))2 |% b1 k- A3 z
;;*(exp (-(people - 2)))/(people - 2))]
% E4 m; Q% S. S$ D. F% l+ x- Kset k (k + 1)
" O+ Q% d. q1 j) G0 L]
1 A) `+ D% f! q3 U7 f* iset j (j + 1)
3 _* j5 p4 ^; t( Q* \2 a]2 O: j r6 T8 _; W+ `3 T. U
set note (note *(exp (- (1 / k)))/ k)% K, u) b8 O% x! x" N+ b
set credibility-list (replace-item i credibility-list note)
( o; B% A( ^2 J4 g' {$ u- S, Wset i (i + 1)
! J9 z/ S4 D9 K- E9 @3 i" J, i]
7 i& j: D0 T7 Z* ~0 ^, ]# Aend$ S9 r* i1 @7 W% r
) a( Y5 }# T+ B: C2 E0 c6 z
to update-global-reputation-list
7 Z& a6 k9 a" u. [let j 0$ B3 B: F& w3 b( G
while[j < people]- T* o( d. b h) ]
[; r! X+ m" C8 w' G$ H9 I* u
let new 0
6 z0 R( q' \* R3 s. b/ Z" d;;暂存新的一个全局声誉' \6 }1 `) Q6 o: Q, V
let i 0
3 r8 r, y3 v: w2 B: I. Glet sum-money 0
' f; e, @! G* ^let credibility-money 0
# e! t+ o& C3 {$ ~1 A# n+ Y" O0 Bwhile [i < people]
4 B, f, |: y) |& j- a[
- F- P: q( L" r! _$ X/ Q, J Yset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))4 ^3 a" ?2 ^4 {1 w0 x7 `
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))& f$ g' r$ Z R& [! c0 j# D3 f+ j! _! u
set i (i + 1)3 C' q+ Y3 ^- T) D9 `+ G5 H
]' @' S, H) O6 X3 P* E+ h' q4 w
let k 0
: g! N7 v* j8 T! hlet new1 0
9 h( _6 V B+ t; _while [k < people]
0 @. ]: w/ H# |' g[+ ?0 @, p% C- v6 k* A
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)- T. g: ?; {. ~
set k (k + 1)
+ j- g" ?: p3 ?1 G, k]% e$ Y8 D& C) d) f7 |2 b7 X% y
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 7 ~8 F T. Q- G! v! j; E# x
set global-reputation-list (replace-item j global-reputation-list new)
( p! M" i8 Q6 f7 B1 Eset j (j + 1)5 p/ x9 f4 a0 m5 I: U& Q
] o' }1 D$ K( Z& T7 r3 l% F3 B
end
9 L7 t3 L h* B- l! y( S9 M. D- Z9 ^8 n( V& k9 X9 G* g* U/ s
; {- X' V. w* s6 J1 ?7 z8 _
! {7 Q) p) ?3 l7 uto get-color
0 `6 f) `+ \6 a. \/ C- f0 Y3 P
4 c% i2 z; A" H5 u3 d) @' W5 {set color blue2 d0 l8 j9 _" T$ C8 F1 U5 ?
end! n4 {7 |( c. p1 `0 A! s% v
' [* _# Z) n8 D% V8 i; P
to poll-class
* \3 s! j6 Q! v( ^ oend% q3 d2 w8 w* |7 s& w' y2 y
3 q$ H& D9 e, Wto setup-plot1
' U r9 B5 R" m# Y
: g) T" ^8 A! s7 m6 @set-current-plot "Trends-of-Local-reputation"/ K& C; _/ E+ f7 H+ {2 I5 D [: D
" p; M7 _) z2 e9 T2 `
set-plot-x-range 0 xmax
. j6 x, {+ [7 ?: i: v9 ^: w/ O4 V
# I( Q+ D( o1 Z" P3 \1 W( Mset-plot-y-range 0.0 ymax
- o* A4 m) T8 Y/ O. j- j6 q2 v" fend( R( I: C' ]% E7 M
/ O' c' X/ Z- {1 v
to setup-plot2
% q4 ?) m, Z( J2 [, c5 A2 z6 d' B, r9 C' R* z( q
set-current-plot "Trends-of-global-reputation"! Q# W5 n A+ L* M7 H9 O
/ e* e4 u1 Y' J: q
set-plot-x-range 0 xmax
* v0 o( r; Z7 U1 G
A& @2 P7 W( O5 u/ ^set-plot-y-range 0.0 ymax
; [& t4 ?5 G8 y' V% ~end$ V' |, P# Y6 }9 j9 Y8 V- G+ U1 I L
. g" W1 K9 s& ?' r! {
to setup-plot3
+ ^3 n: C x, e* N! ^$ z: p9 y( l# y k+ I
set-current-plot "Trends-of-credibility"
; Q1 n, I9 P- M5 S4 g0 J3 N \) b; R5 i9 R8 N. f* D
set-plot-x-range 0 xmax
7 a: O9 B4 n9 R3 W1 b. d6 f3 ^6 m, [9 g
set-plot-y-range 0.0 ymax
6 R, }( Z7 ]1 }" G4 k9 aend
+ @. O4 T- X! U: `% L$ x& v3 B- K6 }. n' g- f
to do-plots2 V: |. F4 |0 G. Y. v
set-current-plot "Trends-of-Local-reputation"
! G: u* C* `! E- M. o% @& gset-current-plot-pen "Honest service"! m3 z# L' Q4 w& x1 x
end' ?% T: ~! s. ]5 u# z4 q9 r
& t" g) o: I, r+ v7 N J; T
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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