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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
; f: F! A" _+ @0 M$ y8 gglobals[
. ^) |7 u* \ Exmax
$ Y" A+ i# q/ V& \3 F9 Hymax# x* N1 e/ z: n6 E
global-reputation-list' o( z" A. N* P* V. s, k
6 r W6 `2 m( w! d# i% c;;每一个turtle的全局声誉都存在此LIST中6 x; t1 [0 u3 d# [7 r$ ^* T- a% }
credibility-list4 \2 U4 h. c9 p6 b9 _
;;每一个turtle的评价可信度+ R+ ~* k- z( R8 K
honest-service
/ A3 j) K" x. t6 A0 lunhonest-service/ \6 J: i& w3 f e
oscillation5 E& E9 k/ ?* S. b$ |3 W6 K% `! y$ M
rand-dynamic, q, v1 i# r* g j. Q6 P
]# [+ p: |# ]( `; v7 v) ]0 J5 X b1 i
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turtles-own[
- z6 X# H+ @. ^9 L' b3 Rtrade-record-all+ i5 ]2 K5 o, v- [( k% A9 e
;;a list of lists,由trade-record-one组成
3 j# G6 N8 M F/ r6 \trade-record-one0 e/ F4 y! E1 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' c9 H; G/ F+ O/ V8 q7 X+ v5 k9 @
) ~( X8 [6 e+ J, d- N: `
;;[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]]
7 e& G( m6 J) D% U. Wtrade-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]
1 n2 s* j2 S( P) p. 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list
4 Y3 }& V0 L/ v% w% ]0 y& m5 oneighbor-total* A; d& I+ S/ _7 [! Y( \3 y' A3 L9 d
;;记录该turtle的邻居节点的数目- \! R! @- p7 A7 E: `/ ?$ g
trade-time
/ i# ~6 v1 M% c9 _3 Y;;当前发生交易的turtle的交易时间
' W! I" h# e5 h; Happraise-give$ A$ I9 J1 k( L: |" k) R$ s
;;当前发生交易时给出的评价/ z* T+ k# {1 G. G# ?7 o8 M/ C/ Q
appraise-receive9 s! H+ {. G- @$ @" Y
;;当前发生交易时收到的评价
% ~: z. E) o! h7 fappraise-time$ i& _8 |. j2 v1 |7 a& v
;;当前发生交易时的评价时间
/ ~: I- Q" Y' X G7 P7 Blocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
' P! q6 p& e4 Ptrade-times-total
8 P! U) U# m( ^;;与当前turtle的交易总次数; v4 r+ K8 P8 A# A/ }. {8 ~
trade-money-total
: H3 x }/ E: N" p! J' _;;与当前turtle的交易总金额/ d, b: g; G, a
local-reputation
2 w- c; J- v N% Uglobal-reputation
* j6 s; F$ s5 K. i4 pcredibility2 `1 ~! y" y7 ?) ?% P8 S
;;评价可信度,每次交易后都需要更新6 S& y3 Q8 i" L7 W
credibility-all% m' W# k+ `9 B1 V% {
;;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
5 o5 D& i; T3 e: @0 }3 M# x; k3 F& e1 n8 }$ M. v
;;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
0 |$ ]& i) _8 _. \credibility-one
& ]1 q; \0 Q P, @- W: _6 J;;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. F5 k9 b' P; d( X' o1 b9 t
global-proportion
1 N! K8 W, @. q& C2 z/ Mcustomer
% a0 K/ \4 c p& `customer-no$ T1 S, m W2 G6 S
trust-ok; h7 Q; a$ f! I% M$ J
trade-record-one-len;;trade-record-one的长度9 \8 V3 w$ F3 i y% c
]6 |7 m' b2 x2 o' {
' D9 x) s4 g# {, b+ |;;setup procedure
* ` j8 w# d- n( m8 V0 k7 F( i. W7 S# ~+ m6 Z0 o$ i
to setup
, z- ^# ^- J' V
# R+ U8 b9 i; w/ G% X' C! dca
$ D3 L' ~+ g, Q
g) O3 V' j x* u+ }6 ~# Xinitialize-settings
; i7 s9 `! }2 j$ S: A2 c. g! o" `# x
crt people [setup-turtles]" I2 C% ~% `* ^, i& q
: T* l8 [; |- Y: B$ p' f9 y
reset-timer
& G' ]; c- S$ a W2 O% [7 P) g9 U% w& p/ l* L
poll-class
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setup-plots
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do-plots* o; Q% I8 X' b% m1 {8 r
end, ^% f3 N o5 `7 f$ j% G
6 R& E: f, n x H- X; i+ i" D1 r) S# Oto initialize-settings
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' V. L, a v2 G" }; Qset global-reputation-list []
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7 t* `) O5 E: Vset credibility-list n-values people [0.5]1 @: ~. ?) @# s8 r, `! s$ E
7 S/ x- z# w# F6 S }set honest-service 0
% c7 J3 X3 @ S% R- l
# \7 W; G! X: q- z% Rset unhonest-service 0* u! N1 A/ ]# u3 A
8 X8 N1 f, {# _! b1 o% |set oscillation 0
/ S% w5 r/ i- i- D+ @6 ~* `9 z2 w Y
set rand-dynamic 0
7 t) J% E2 k: g' iend
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to setup-turtles
/ X, l, b" J* c; K& o, Iset shape "person"6 R, k$ m& t: f/ |2 N/ R4 l
setxy random-xcor random-ycor% h9 i9 {! H3 v) J6 |4 k9 M
set trade-record-one []7 {8 \" A# }- F% W( E5 }0 p
- W* q; O' p: j2 K8 Y+ zset trade-record-all n-values people [(list (? + 1) 0 0)] # \6 f8 p; C8 _, l) O6 I: Q
; B5 E$ X% V4 | X
set trade-record-current []
3 a6 H6 E2 K S) p& a2 ?4 [set credibility-receive []
) X I8 e) k* V: V. a' Jset local-reputation 0.5 W$ g" O+ h/ ~! M
set neighbor-total 0- H0 V+ B+ @2 \9 Q
set trade-times-total 01 @1 c+ h# l7 X$ l& s
set trade-money-total 02 B% h9 F! f; r7 S2 \) I4 o: k
set customer nobody
$ }2 ~% q6 i! J3 ~3 N# Vset credibility-all n-values people [creat-credibility]) z& H- o0 H% x r# K# \
set credibility n-values people [-1]) C# X: q3 @+ Q) p% r# L5 o+ e
get-color9 J% U% X, u- d, |- A9 o
7 I l" M4 X- }. ~
end
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to-report creat-credibility
5 @/ O! d' F) I/ h- J0 e. X7 _: Jreport n-values people [0.5]9 I" D8 m0 ~5 S4 m$ i% t$ A
end; t+ n2 f. \: l/ a7 X* ~6 [
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to setup-plots& U" v/ j& B+ y' a. W
6 c1 k+ X/ z) L7 Z7 bset xmax 30
7 Z( J2 p! }5 t0 X* Q
( d- I" ?2 T/ y# b( W3 iset ymax 1.0
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+ G8 ~9 ^7 Z! w! G+ tclear-all-plots3 R* o& `3 ~1 M- X; q; ~
/ F' F" J! N: s" E) L1 v3 p+ c$ [setup-plot1' s) t* x: w* |7 _0 r H
+ v+ p+ S4 f% K0 J- p0 @& {5 K
setup-plot2
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setup-plot33 Q. a' e6 v2 _7 ?* B
end
' n7 }, v, g4 A0 x$ C/ u& ^/ F. R- ]/ S u) G- B
;;run time procedures7 d# D7 A. K" M5 j; W+ q
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to go( v- i2 R, u1 O: D
3 d( z) f# x E
ask turtles [do-business]! r8 \( k" A: x: p& M' |4 ?
end
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( a$ g7 J4 |3 g4 _. {8 C5 l2 Q8 @to do-business , Z& |- U/ ` ^4 ?$ Z: u
. K E2 \4 u3 R# I6 f1 ?5 g% a* C; v/ ^! u0 `
rt random 360
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$ i" g) Z7 [% b5 xfd 15 i1 z8 {4 U" G6 e
$ Z9 n1 b6 z8 P y N. F; B1 w
ifelse(other turtles-here != nobody)[* _5 A% e1 U- o( q7 [# I7 {8 {
( U$ G; O e6 f# T, H* ^* Zset customer one-of other turtles-here
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4 `7 ]2 ]: k$ o' c+ }7 f& r;; set [customer] of customer myself
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/ A9 b4 t+ \$ p4 e* `% lset [trade-record-one] of self item (([who] of customer) - 1)5 Z" }+ o c! d# f# `) C7 z
[trade-record-all]of self. F' }9 C* Y! Y- _% Y& g5 n
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
* y/ x/ m- g4 |. l0 M0 M9 G( H# S5 ^0 s4 S) `
set [trade-record-one] of customer item (([who] of self) - 1)
' W7 Q# X# H5 \2 B[trade-record-all]of customer
$ t( T0 c4 M) o" `4 l# C8 K) Q' s! l, W \/ ]
set [trade-record-one-len] of self length [trade-record-one] of self
: \, e( B$ q* X$ I; F& p( i0 l' T4 a$ @1 |" M- ~3 V
set trade-record-current( list (timer) (random money-upper-limit))
! X8 R# p3 i5 `, I; U! S( f) X/ S
ask self [do-trust]) a- R! U# ?1 X1 g
;;先求i对j的信任度7 n% f1 u) B4 d2 u
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if ([trust-ok] of self)8 t- O2 o7 n' h" ^% u2 n
;;根据i对j的信任度来决定是否与j进行交易[5 |- i! w5 l, Q- o( g
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
* |+ s: U! }: p0 d k3 r! s: r8 P4 k/ y W5 t3 P
do-trade0 c1 T( ~- w) \: K) w
4 C+ M8 [9 b( E$ dupdate-credibility-ijl
( }3 t1 ~; @* l8 t: x/ G" f0 a4 C
update-credibility-list" N/ `7 j/ z1 g4 x4 J
! D" ]2 d, ], w# Q: t4 F3 ]/ F" t# G' y5 Y9 j( n3 X* K
update-global-reputation-list
+ X; t: S+ t' B
7 ^. h' p; b; ^poll-class
" @9 Y6 N. S' v$ f0 h1 m
! ~' T; B+ e. t# `) Xget-color
4 T1 C; O- W* P1 t' z' u$ ^7 e, d, c- `: M0 N- f! V3 N
]]) \+ y/ q& `- i3 c, Q
* h7 h, g$ ~% h0 V$ c, M;;如果所得的信任度满足条件,则进行交易
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/ z' G. ?) R$ q% L9 n% X! c[
% S) \3 f& F- l1 Y3 O# O S/ U9 ]/ N1 k- X
rt random 3601 D7 H: Q0 L7 k; Y# h" l
2 H3 K# e4 S$ Dfd 17 f! o. L8 N0 l# z
( a, F' [3 h0 D4 [1 N6 k/ K9 U! a]& D' \4 Q' I, M+ E1 y3 e/ I
$ d D, p+ b4 u q. }7 X2 l' p
end% w! v; c! J% |& V) o+ g
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to do-trust
9 X: ]' i0 }/ m, t% o; Pset trust-ok False
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5 ~0 B2 Z: F8 e, e/ H, f1 s/ elet max-trade-times 0
; C/ X% V5 L. q# M+ ?5 c& N" D& _foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
7 e9 V9 v {6 j! F1 zlet max-trade-money 05 ` w* k4 J1 k7 j2 p% U
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]" _1 l# z6 x, F" J+ g
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
+ j7 V) F/ j: [2 n% l# G$ e9 f
) O: c, i5 v9 c3 x4 a! n7 o$ n% O' m0 n8 ~
get-global-proportion
. B" ]2 G" o, `" o" b+ K$ jlet trust-value
( q9 H* Q+ y9 ?9 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) ^- X4 U! z5 `, Z
if(trust-value > trade-trust-value)/ o+ z1 D# I5 |# [1 {! c
[set trust-ok true]* {+ c' y2 D7 v/ T! L1 }$ M
end
$ f3 c7 f1 J* u1 @& m
! T' s9 \6 V, m( hto get-global-proportion
7 O% s' j' T0 g. G9 P8 D" Difelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 @( S0 S1 x, O5 ^; }4 E) r8 S[set global-proportion 0]
: M% j. W7 d3 k0 k2 [[let i 0* [1 p9 M) ], o Y, l$ y. k
let sum-money 0
, x- t; N" C( a- kwhile[ i < people]
5 D, z& q8 b' e8 ]# ?5 H[
4 ~0 k4 F1 W7 x- K' `$ n$ Xif( length (item i
, |1 o8 W" s9 Z9 x. U* J% j/ L9 |: I[trade-record-all] of customer) > 3 ), f X* F; C+ R/ ^
[# e% l, |, d; w8 R
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 t- B1 |2 d3 B" j. s3 e
]
$ \- Q( M& y" t# P]
6 {9 x' E8 C$ H' b2 i9 ^let j 07 G. l% D5 |% c
let note 0
( T# s- t. ^# p q1 ]" [while[ j < people]4 e' J8 H( @/ E M
[
' W+ F i8 x" V& u7 ~ Wif( length (item i- E, R0 v9 s, u* N* d2 O5 g
[trade-record-all] of customer) > 3 )( V" G+ f7 y4 D6 j) s
[
V P2 |( c% r' f) P7 h: O8 Bifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)$ ^6 `! z4 m0 ^3 s
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
0 J% A7 u3 ^; {# b* j- [& }% o5 Q* n[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
( v3 X! r- Q! F" L ?/ k9 k]
1 z$ |: ~' Z4 U6 f- P% x, [/ S]$ Y) O) Y! k! z7 F! m: [, m2 V& F/ z
set global-proportion note
4 G; k W, A5 W7 P f# S]. W3 ~" c' b1 D$ }; z
end) ^; v& v- ~8 m: e
( K0 x# c5 k* J# X1 ^* a+ Y8 Y
to do-trade% R$ A1 b7 Z4 C8 H. q
;;这个过程实际上是给双方作出评价的过程
5 B: H) z& ^5 M6 c0 q! hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
+ g( H5 @+ _2 E- | yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价4 G$ o2 H( P# \- d! d0 i7 y6 F
set trade-record-current lput(timer) trade-record-current
b6 o2 p& a+ j( f: |/ b;;评价时间
# S2 T* G2 m- ^- I8 W8 uask myself [
# j& ]' C4 d7 o- d4 |update-local-reputation1 X. ]0 @; j- _: h; J
set trade-record-current lput([local-reputation] of myself) trade-record-current. z: x: ]5 O# R! @# A1 |
]* G7 q* U4 t0 l h1 G% I
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself& s4 G- O0 g- F2 o) A: V+ H- r
;;将此次交易的记录加入到trade-record-one中% i4 g: Z, M k3 ? O& t5 O4 v( m* }
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
/ d* X. E7 ]9 U% N. Llet note (item 2 trade-record-current )6 q8 q! K" J+ K. q
set trade-record-current
! ]; u f, i7 H8 e6 [* y(replace-item 2 trade-record-current (item 3 trade-record-current))
7 y- O: p) }/ V% |, d. Oset trade-record-current3 E9 Z& o$ q% c' ^7 \& S9 O
(replace-item 3 trade-record-current note)) D6 w- l' d) i
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) j6 n% N4 p* L& k/ Y$ \, Eask customer [5 ~4 T# I& \! m& n x
update-local-reputation+ Q2 Z5 r8 P. X
set trade-record-current7 N5 t$ [6 ^5 ?# j2 G, h, U
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 0 l- g: F: S ?" E) O7 c& W* b8 z
]8 T1 l! S H; g8 T1 ]
- a2 C, b2 Z. y( `8 ~: ~! C I% c2 X2 k
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
& Z2 O& G1 @6 ^. W# |# x" Z; l, i% ~
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
. O. D' X3 a) H2 ?;;将此次交易的记录加入到customer的trade-record-all中0 v9 J; d6 c& `5 z& J
end
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to update-local-reputation
0 @. O$ U5 p. q6 U! s6 r& h, \0 h! ?set [trade-record-one-len] of myself length [trade-record-one] of myself( l6 p9 P2 v& K
Y0 U G1 u B& Y
! X" F2 A! ^- c0 h) w0 B9 J
;;if [trade-record-one-len] of myself > 3
$ t2 W, O8 \: S& x0 B2 hupdate-neighbor-total
/ m- p3 C# b8 T" X;;更新邻居节点的数目,在此进行7 ^% W( I% t! F( ~5 p: [
let i 30 G) C- r! \' D! D
let sum-time 09 ]" x5 g1 L6 x1 I4 N6 l: T
while[i < [trade-record-one-len] of myself]
( g5 y# u3 I: c* o+ F[4 h* a2 `1 b- q- f9 i! Q
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ); n1 A/ f$ U% ?1 p1 X& w
set i4 Q! S; v- @3 G, h) E
( i + 1)
# h5 S0 N, v6 |& Q3 j. Z+ q]
; o u( L, ?2 Y" Mlet j 3' r# ~- k& E, C+ i& S' }7 c- a
let sum-money 0: p0 W& W; N8 b- j; }6 y" w5 X
while[j < [trade-record-one-len] of myself]! l1 ? Q0 K5 @# t
[. a$ P0 ?' P8 |" e
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)
3 E- e* c2 I$ `set j# r4 i- q3 F! S. W+ Q" }
( j + 1); ^4 s$ v$ }7 _) H4 O
]5 }* T2 B. ~- b
let k 33 v( r5 t/ A$ r) j
let power 0) P2 K9 E, q* u, S8 L
let local 0- Q' B+ g3 v3 t1 e: e$ u
while [k <[trade-record-one-len] of myself]5 t8 t+ x$ Z6 W; h5 }& B* W
[* T! n( b* V4 H M/ m; a+ a- @' g" A
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)
+ z+ t" |' g$ ~! T* N, B6 Uset k (k + 1)
' g3 r" F @0 e, P+ _9 s]; E4 r: n2 P: o) \* a
set [local-reputation] of myself (local)- K% F/ j7 x) H- l
end5 n0 c4 d* p* d- R6 k
9 C( j5 w& \. e3 k4 d3 Xto update-neighbor-total
/ V5 h& v% \+ h& X8 H" l& \8 K4 r G* E. o' m* Z! y
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
" ?5 r& p4 Z0 [. n4 C* B/ v8 W5 Q+ S0 v3 d7 o Z; l9 z( \+ J
6 c) v E5 n n- l Fend. {$ _/ R, x3 v. @& R3 M
5 H$ p$ w. b6 R1 s2 [% nto update-credibility-ijl % ]) q! k7 A/ \
) ^* v8 J' b9 a" b: e6 }$ x
;;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。
% }* J. l/ L7 E9 c; ]- dlet l 0
) R$ N1 r/ o+ _# lwhile[ l < people ]
. b# ~) E# @, T; i% K;;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
7 e- S8 i6 R: Z4 G$ m/ b[
. E; |' i8 z+ S& Dlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
' d7 K1 v3 D" O; Y) hif (trade-record-one-j-l-len > 3)
( {/ C4 w ]& ?[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; B7 e- e2 u1 n, I
let i 3) O$ ^9 w4 ]$ r" G0 R) N
let sum-time 0& x, w% p- s: n# |
while[i < trade-record-one-len]
; V5 ~+ \3 L8 S* r, P5 ?[
( N7 B7 W8 R! R. Jset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )( B* P7 Y) v: Z' X6 d* A4 p
set i
6 r7 d) I# w: ?( i + 1)
# e5 V2 n$ Y. s5 G]5 G5 O. s- `: }6 K. J& C/ g1 x) X
let credibility-i-j-l 0
" l/ Z' o! C- Z# E+ D/ Z. e, o;;i评价(j对jl的评价)
) e# p3 Q2 K3 E1 q" M1 R9 Xlet j 3
* l( L6 b' J6 D$ }/ y9 s" Jlet k 4
9 L5 C% U8 Y- d3 J* hwhile[j < trade-record-one-len]
/ l, }; D% c/ m6 c- l[7 W# ?, H% ~: R7 S7 X9 b+ r% H
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
( T# x9 @/ u& \. R- `% K- `: Vset 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)
$ N" i) S: k& s; i% f$ [set j
1 |" e0 U0 M! z! K3 `* |: P \( j + 1)
( t$ t/ P b9 D* M4 {# ^! `]
3 e8 q* p1 i" lset [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 ))/ o) `4 n/ l$ B( r
2 R! ^# `; w2 [3 z
' g C7 ]8 W v. {( |4 Y: Glet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))+ k4 R7 X0 S: d6 P5 r0 F U$ b) }' C
;;及时更新i对l的评价质量的评价
` e8 i+ ?% p/ j; ^ W6 Y0 D7 oset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]! Z% @4 l' j$ l. B* a) z; N
set l (l + 1), M0 }& F* z3 P0 k& M- G* I
]" W( p2 x( z, J( {/ i
end
; m# ?/ M, F2 j2 v4 N; j, `) R0 Q/ {& \4 V, H4 m( R# Y2 x
to update-credibility-list
0 P5 m7 O; `- n4 }$ { T( ~$ Ulet i 0" L6 X0 E! b0 b/ @
while[i < people]3 l* N1 F% W- v% s# e$ H
[
+ B. x' |6 Y* r" B9 t! N( G% e+ ilet j 01 l9 s: [- ]* m6 o, C
let note 0
2 t- h+ ?3 {" D. s# W, zlet k 0# b6 B2 `7 I- s# R
;;计作出过评价的邻居节点的数目
+ d* ^1 K% F qwhile[j < people]4 N S' \- r- x
[
2 q1 _! C! g/ k- _if (item j( [credibility] of turtle (i + 1)) != -1)
+ S5 t/ W7 }3 }# N;;判断是否给本turtle的评价质量做出过评价的节点5 H' U' o2 D9 G; ^, [
[set note (note + item j ([credibility]of turtle (i + 1)))4 Z" A! d+ o) }, M- `# E
;;*(exp (-(people - 2)))/(people - 2))]; k; {, A& W% Y+ Q; W$ ]
set k (k + 1)
/ c+ m d2 B% ]# j2 W# X4 ]]0 t% ]) l! L0 l/ m# ]/ S1 X$ e
set j (j + 1)( y- g# I7 W3 i
]
3 }9 v6 }& o A, I! N/ mset note (note *(exp (- (1 / k)))/ k)
: U' p e- j4 e$ B. vset credibility-list (replace-item i credibility-list note)
6 b, C- ], j0 d9 uset i (i + 1)
* Q1 m9 C* w) D( c]
! }# N& ~, A# f" s5 Z7 Z( kend" L" r3 \2 `' c A
4 [7 Z0 [) Y! H
to update-global-reputation-list* G; O7 Y4 }# }1 Z; a
let j 06 K: b/ {) W. U# `
while[j < people]
8 t: Y) t V. j6 A( o F$ M1 I# }* G[% l- n5 F6 s9 Q9 I( T
let new 0
; C0 j o( C# Q" B! @% a3 s;;暂存新的一个全局声誉0 d/ H7 X2 i! }1 y# B
let i 0+ G8 d, A. d& g- }8 H
let sum-money 0
7 `) p% {2 w" [2 _& S" t. U5 xlet credibility-money 0( U' g) V0 d! j+ V. H! f
while [i < people]
" c5 P! _( ^9 E% Y' `! f' u9 E7 p X$ C: O[
6 _7 _7 f" D. ~4 w1 `8 K0 }8 Y; G# Mset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))9 z3 y+ k' i, U0 H
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
/ h# A0 j1 w8 i4 p0 qset i (i + 1)5 z# v) x+ f. s4 d0 h
]# k# d# A. H* N8 i! t; w
let k 0
- t; ?- r4 `4 p$ j* W* o8 t* rlet new1 0
# p/ L! H0 ~. v) ]. ]% P8 Y3 w3 gwhile [k < people]
% M$ W% u5 b$ s" o4 ?3 L[
8 R) n) z( G. w( z: k/ c" M: p3 bset 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)
% i' [( i& \% |4 i8 i; Aset k (k + 1). @$ T) g. Z; z5 s' K& F( B; ~8 y
]
, H. O0 N9 g) hset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
4 n$ c3 z- L+ aset global-reputation-list (replace-item j global-reputation-list new)7 n1 I& M5 L5 X2 O; c
set j (j + 1)2 P" X8 ]9 r* z$ {! l
]
; E8 A6 o# s, q7 y6 G$ ?end' h2 D0 B6 @- A( i
+ o, C( L2 [. H- s% B% u
% X ^ k9 m( G P$ y
# d/ n6 B2 {6 M: Rto get-color/ l. P7 t: q& S! P: W- U/ S
( Q) e8 Q+ E1 F$ N, c jset color blue9 ^+ u4 k E4 e/ n4 J
end; F* x0 ?& N) K5 \
) l1 {. w: W- @( P8 U" l/ ito poll-class
" \, T5 n! S6 w* E+ Dend% G w. Z& C* q, n
9 s6 W* ]. M7 Gto setup-plot14 ^9 I. L' e) D+ {5 U H( G
7 s4 m/ ~0 F8 q0 A; e+ r. C+ hset-current-plot "Trends-of-Local-reputation"
) W* V; x7 V5 R9 a" r6 ^+ E# v$ Q
8 L$ v7 H) `2 y7 Y3 Q7 U7 Mset-plot-x-range 0 xmax/ U' V1 {+ B) w7 }9 M
' a" c+ S7 B4 }$ f- g' q" n4 z& h' A- X
set-plot-y-range 0.0 ymax
/ U, T( @' U5 E1 }/ l* k# \end
1 `& C" Q1 ~, }; ]- J( J+ {* _- Z# a* s6 W( r4 O
to setup-plot2, i0 h5 l: G/ Y3 R, |8 a
- d% P, B* v% _. N# T& z0 z
set-current-plot "Trends-of-global-reputation"7 E p- o/ U+ a2 j- P. ~$ j
8 x) U2 t2 w4 ^/ @8 {2 c6 h
set-plot-x-range 0 xmax& F% f' u, R# B4 b* H0 b8 ]+ P1 i
3 w3 k! U9 o' K3 Kset-plot-y-range 0.0 ymax
0 Y9 C& x! o+ xend2 R& N5 c) s# O+ n- w
" u6 Z" n& \3 b+ k- _9 sto setup-plot32 Q) _/ }8 `6 ]8 ^ d' c* f
7 d: T- |) w! V9 r9 v
set-current-plot "Trends-of-credibility"
" T: h% O! v6 p- l$ Y* @
: y5 T' U: F) E1 F% }8 x' u( Eset-plot-x-range 0 xmax
8 n( v0 f2 Z4 v
. d3 W" ~) ~, G6 nset-plot-y-range 0.0 ymax# ~, g1 N7 l9 i/ J; z1 Z
end g' r* X; U1 n+ r; l
; m, [6 \: o* w. p
to do-plots
9 u `# m$ R! h/ iset-current-plot "Trends-of-Local-reputation"
. ?* V( N6 Q9 p# H, s- t, Cset-current-plot-pen "Honest service"' P M' k+ D. ?
end# ]4 p6 Z/ l- c" c! `
2 z T8 T3 f! L: e[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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