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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
9 a" \/ i5 @- P( sglobals[$ F* w: p8 J! V& d: g$ E8 c
xmax
/ [# F% w- r, D) }! xymax3 o8 M+ p3 Z) _1 ]7 T+ W1 o/ b
global-reputation-list# V+ u+ K6 d1 i. L
: k- w3 w$ E2 W" Z;;每一个turtle的全局声誉都存在此LIST中% `9 t9 y! e$ n/ f: T4 U* ]2 E8 k
credibility-list" z1 j L! O8 X: ]
;;每一个turtle的评价可信度
7 R) R" w7 V+ t( e6 b" ^, i- c7 yhonest-service- h% @5 u$ T9 x( R
unhonest-service
x, ], x1 S# ?" p" doscillation) I) G+ ^4 m( [8 V" D" H4 h
rand-dynamic' k& t' ]1 }3 a D+ m
]" t/ a) o1 V" Z6 n5 w8 `
' @4 H9 s1 j' {9 fturtles-own[
& Z" U8 E* t* g, a$ [trade-record-all* m1 M) v3 O5 E5 s" o |
;;a list of lists,由trade-record-one组成" t. J; i W' A# c
trade-record-one
' p( d4 A, x3 Z/ I) `9 ?9 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: U7 a N- r6 _0 n; z
8 x' }4 |2 D, @/ p;;[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]]% b" Q1 }" p4 I9 Y! w: C
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]
& I, l Y* c6 D1 ~+ M: c# Scredibility-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 u$ m. k* J2 A3 s8 I: e" p2 j6 i' {4 l
neighbor-total
' L/ y% _' H; J p0 r; Z' @+ \;;记录该turtle的邻居节点的数目
' ^3 E9 N. d2 W' Y9 B6 p. Ntrade-time
, p3 B* h1 h2 F* `;;当前发生交易的turtle的交易时间9 x% Z* Z. P9 t9 t5 G8 b
appraise-give
" S' S2 r; D1 |7 [2 B! ^;;当前发生交易时给出的评价
7 p7 b+ _, Q* V2 p. U) Nappraise-receive
% Q6 Z3 ]& Y2 V, o, x" \+ A;;当前发生交易时收到的评价
+ c5 X5 h8 y5 x: R5 Gappraise-time7 R: q8 z- `" Y f$ ^, Y
;;当前发生交易时的评价时间
k9 V4 E1 D( P6 j$ k' ylocal-reputation-now;;此次交易后相对于对方turtle的局部声誉# J9 t/ y# @, t& C9 @
trade-times-total
# Q2 d& B) [4 o# q [- N;;与当前turtle的交易总次数
% h+ @: x7 W0 [0 _* h3 {* B0 `trade-money-total
V4 l: H' d9 {7 b;;与当前turtle的交易总金额6 q; n4 n) d4 n" @& v
local-reputation
5 [! ?" T; v6 cglobal-reputation
, Q* n$ i$ J3 R/ Pcredibility
9 {8 g0 m; |, a- X3 [;;评价可信度,每次交易后都需要更新 B2 c5 w" X6 C4 T
credibility-all5 L5 n) ^6 m2 N: u* s$ p, z! 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* T- V( }. f1 A) h5 N) x
; x: y% J, G, F% x. 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
& R6 A) _3 t9 d& ~- rcredibility-one) I5 Z$ S: H. h. x5 J, z% m
;;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1 Y" q/ d* K- A: g5 n
global-proportion
5 D( u/ t/ J( |customer
8 x( B$ g% H# [0 V2 ocustomer-no
G7 \3 y, o) C0 {2 j5 M, g) itrust-ok
5 @2 J" s' g! Utrade-record-one-len;;trade-record-one的长度6 A+ A6 G( s% l3 X4 y" U) E
]
& M4 h7 j5 {+ e7 M
- l: ^) H/ m& E( M+ H1 Z3 p;;setup procedure, a$ e- x. o q
: ?7 L- Q, ^6 Y0 ]
to setup- _: L: X; J- b
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ca
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$ u% C( y! e. _5 C8 ~0 I4 c& v( v, Iinitialize-settings
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crt people [setup-turtles]
* f W2 H% m/ g& O/ \( Y. I/ s$ a1 z3 h7 Y( h, V) V
reset-timer- c+ i4 i2 K, o! V# U0 Y
9 c( S \- m8 B" ^$ hpoll-class/ L+ Y; J5 U5 x) k
) L. b& Z1 ~8 r, w$ f" H
setup-plots
. x. u) S8 W* G& {( ?) ?7 l. h2 s* i5 ^5 H& W9 }5 B
do-plots
! ~; Z! F; l& o' }3 q+ x2 Hend
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to initialize-settings
5 L& E2 U' ]1 u; ]5 R* |% ~* J
1 {8 s+ {' Z' ~9 o E: ~ f8 _set global-reputation-list []3 k7 o4 `) g! z4 V0 q* f8 M0 `
+ m3 ]% \- {0 W% B+ f; v
set credibility-list n-values people [0.5]* i$ f- K& ^/ j& z3 @
/ R# P* t* x+ ]5 U% b2 nset honest-service 0
0 v* t6 f9 h. a1 a4 m+ R( ^% }8 e% {4 q3 }
set unhonest-service 0
% n: l: u% |2 y3 R8 L4 k5 J& E9 x0 | ] J# I" R& n4 X' \6 p9 S* e
set oscillation 0
5 s9 [- a8 }7 E4 p6 ~
8 n5 y9 w7 X7 \( X/ i) oset rand-dynamic 0
1 I% \- D. d. c9 W) x: Aend
3 r. f5 P# Z% v. L' m) P& s6 ^! H; @" n, U# A s# k
to setup-turtles
* b( m0 T& Z0 K/ l- j+ \: T: g: x& Hset shape "person"/ T( `6 c4 v' ?* N) N3 {' Q V( D0 _
setxy random-xcor random-ycor3 o* p+ c' a; R6 y# |
set trade-record-one []/ c0 \/ e! _8 ~& P* W
/ O5 m& v8 \0 F _0 t. U$ Z
set trade-record-all n-values people [(list (? + 1) 0 0)]
7 D9 M, m0 Y9 |; {. {! r
- d4 H: x; Y, ~* ~set trade-record-current []
: d) t& ]" ^- d5 zset credibility-receive []
3 l" o! E& Y; B( x! d+ F! G6 f' i& L, Iset local-reputation 0.5
7 B! \ h6 g" j% W% Z6 }- N) lset neighbor-total 05 r) j8 x) ?* _6 F, ]# ~0 Q
set trade-times-total 0
8 ]2 v! A3 \: o- }) O- H0 @. Rset trade-money-total 07 g6 R0 w: I1 V3 T" w" i
set customer nobody0 q+ _3 g* @; D: s
set credibility-all n-values people [creat-credibility]
% F; q' ]2 L2 z& q2 g4 K$ dset credibility n-values people [-1]
/ U$ F$ {% A. ~get-color1 Y3 v* _, X& y6 d
' b$ j3 g) ]' T! B A
end
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to-report creat-credibility; c& ~8 z! J# L1 W, t" ^' [
report n-values people [0.5]
8 W# B, x9 [4 B4 q) ^# O. Xend
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to setup-plots
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set xmax 30: o6 J: b' R. {$ V7 d9 i9 Y6 v
3 \' H% { ~: z7 [set ymax 1.0
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clear-all-plots6 w! k6 B$ Z, Y) H# `
0 x# @# K- ~' V& _setup-plot1
* v' j4 i# T& R6 |& ]# c2 N& \$ y% e% S8 A$ @1 z2 u, a/ t
setup-plot23 I: N5 ~! v. C1 C O0 X" |5 Y
+ P' V3 f% l- c3 ksetup-plot3
4 }; a z, X, Wend
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( |; {: P/ p% x$ R" w" y9 w;;run time procedures* @9 M$ Z, G' W: S
2 `' @" W, \- t2 L6 v0 @. ]to go
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) }7 C/ ]% v0 W3 ~5 Rask turtles [do-business]
4 C1 J( j* d9 Zend
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/ p* F4 t4 g2 ^# M" I7 Q5 |to do-business
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+ S+ K% I& j r1 q( Q5 k8 t: T/ G; W: E- Z$ i [; j
rt random 360
, t( m/ k9 `/ Y* k& ~! ]/ _' F2 m% N5 Q8 J( k7 U: H( L- C- _
fd 1
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; C) x! |' W6 Z: Mifelse(other turtles-here != nobody)[# K3 t! |5 d4 ?& w5 N" G
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set customer one-of other turtles-here# I1 ~0 {6 ]! R5 s4 M2 Y; w
+ `6 G! G0 A; s' s" }6 C
;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1): O% P/ z# T# w4 s4 g/ P3 y1 `# f9 D" H
[trade-record-all]of self) G6 z9 X9 D$ w x+ e5 K" [
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
! w7 |& X! r7 d* I2 h% L& u' n8 |[trade-record-all]of customer7 H6 d4 E- c1 l
* e+ y$ L8 C" m; f Y: Hset [trade-record-one-len] of self length [trade-record-one] of self
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* k+ l' i+ I3 y$ y+ e0 H5 G+ v+ i3 `set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]0 t+ ]7 _$ H/ I$ Z# i+ V: w6 s2 V
;;先求i对j的信任度* b ~9 S6 r. d7 o4 r
+ [6 ^+ H8 F: s" r( O1 oif ([trust-ok] of self)
. d1 p/ F. \* U! p& ~. ^;;根据i对j的信任度来决定是否与j进行交易[4 G8 }7 F6 P- ~1 k, l
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself7 Z5 F( g; p( J8 c
# [1 o6 f2 Y/ b" W9 G( W/ v `
[$ x1 c/ O! z# w+ T$ o! Y
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do-trade
# H0 E$ J; V& `6 S/ ]
1 o) C+ p+ F/ Y# Gupdate-credibility-ijl
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update-credibility-list
# K) K9 p$ U* M. \+ ~8 p# a+ g6 t% T4 f) T4 c( |9 M& T
' @; o# t% [7 p6 k Rupdate-global-reputation-list
t" C, X+ }% ^6 `: m) s2 L- ~
7 K1 d. @& s; o5 d4 q" ]4 Rpoll-class( u2 S# |# r: u: Q$ n& Z" a- W
. x7 }7 ~ L: } ~- _2 z8 a2 c
get-color T0 e8 W) r' X: F3 v/ H8 U
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]]
}: A" k% Z4 o! b) ~( _' T" X9 Q7 s8 p. V# Z4 @0 l
;;如果所得的信任度满足条件,则进行交易6 q t7 B$ W) x0 k
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2 {! Y1 a' {$ |8 g9 V6 I4 {, W9 A+ Q2 \" H6 ]2 r! M" x a0 T
rt random 360# B+ }3 m+ {# K
6 ~5 ^1 w# \. K! n0 x" _4 ]. A
fd 1
3 x) {; Q; U$ _$ C) w: Y( ]. V; |* K# B
]
; T5 k( x5 b7 g- F: Q- W. B. i) x# p; `" U+ ]9 ?
end
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to do-trust
: p# R+ C& k% z3 T3 C3 H7 Gset trust-ok False4 G; q! u) G& ^7 b. I0 j
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let max-trade-times 07 x' x9 Y0 r9 P( k
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
+ A- ]. p4 D& n4 i" |2 U# elet max-trade-money 0+ X! W# e, I4 k; N: @% [0 q# v
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
: p" f0 C; Z# f$ }7 n6 L4 }: qlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
$ c4 g5 \# c0 L( v4 F, R8 I3 I" l) f7 i1 y4 p! f
+ x3 ~3 _$ u/ K* k! D! T/ _* W) u) oget-global-proportion
9 m, s9 H5 _- u' M9 H" T. v% x' J- \let trust-value* v) e D" i! `3 ?
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)$ w; [/ O6 F" q7 X9 X3 j
if(trust-value > trade-trust-value): r S; ]7 G5 z6 f8 ?0 m- Y _
[set trust-ok true]( i) G- u3 W7 Q- m$ q1 u
end
+ N# K" B, a) d: A B) v9 Q
7 l' k, K, Z8 U$ \" K( K% q, {to get-global-proportion% }9 o2 P K( _6 @6 M/ m [8 i
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
: ]$ D4 Y1 N0 C[set global-proportion 0]4 Q, b X& j0 r, c; d. L7 i! b
[let i 0
0 F9 j @+ l2 u* K0 t; a3 Qlet sum-money 01 U0 k$ y/ d. q9 s" E
while[ i < people]
" V2 U1 U \7 V: ]9 r/ L# B4 R- m[
4 o& v2 q$ R2 _) z5 w; `# [9 c6 Eif( length (item i
' L2 D' _# w" L/ Z c* p& b[trade-record-all] of customer) > 3 )$ {/ q3 k# f$ I6 z7 ?
[" g" }5 a* t" u7 J* _1 K
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
# m# {& j: d+ l$ j8 _]( ?5 f9 g( e5 \8 I
]( ]! V! L6 F9 F# L# H; z5 f1 t
let j 0
/ g0 ~- u5 ^2 L- g+ ~5 Rlet note 0
$ x- g& i( p$ V- ]& [3 ywhile[ j < people]6 l) A) I1 b( Y
[- H4 c7 Z" I6 I' C
if( length (item i3 t5 d/ Y$ ^+ z+ V. Q6 |
[trade-record-all] of customer) > 3 )
t9 H+ L9 A. d; s[! R! V% I& b" |+ a( h$ p9 W
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 x3 b$ P; q4 R3 n6 ~5 s[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]' O2 K% ~ b' C2 ]+ s* m8 u! D8 j
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]2 K" ^4 o0 a1 L, F
]& b' _, v0 ]/ q" Z5 N! \
]
0 g; ~, m, Q9 {0 x0 M0 Tset global-proportion note
9 r& c+ z% ?7 o9 i]
" ]/ I+ M5 P% hend
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% }3 D H) q9 gto do-trade# _4 }) i& p/ P; F4 r
;;这个过程实际上是给双方作出评价的过程" B' d0 A( s7 E$ o+ p& W
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
; O1 L/ v- t& Q; I$ E" rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
- z8 k3 ^/ D) B/ u0 k, rset trade-record-current lput(timer) trade-record-current
* a" w- H- ~: G;;评价时间
4 T& P! q4 R4 P: P$ A1 Y8 Jask myself [) o% R" U q; r5 }
update-local-reputation
+ j5 r* b/ s' h+ cset trade-record-current lput([local-reputation] of myself) trade-record-current
# @- b3 `% ?9 }2 c2 v2 j; O; `]) t P! Z4 v4 \. y; \7 f0 A4 |
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself1 c: f8 ], ~, X" f8 J2 r
;;将此次交易的记录加入到trade-record-one中
' W. k3 l, A5 V |4 I' sset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 ^/ ?! @# D& Q5 c- c) M7 t/ s
let note (item 2 trade-record-current )
6 ]- o5 `' {7 R/ G1 e3 H0 F8 Kset trade-record-current/ u: ?; ~, q4 D, w* Q' `
(replace-item 2 trade-record-current (item 3 trade-record-current))0 c9 X- ?7 A8 i: t4 ^ ^ e
set trade-record-current s. I2 |$ n0 k5 c- w
(replace-item 3 trade-record-current note); o% V: B# l% h7 M3 Y) \
# ^7 T' Q. S' |: b7 w
% g$ c6 e* ?6 w0 f& n
ask customer [
! R0 Y4 s; M# n6 S- U, [# G+ xupdate-local-reputation2 j; Y$ w7 _ n* I! b/ D4 s
set trade-record-current. s, s+ n: l. Y' `
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
" Y) Y% i% X( z# X]" c; R) k3 d! ^# ~4 b: P \- j! V
3 `. W2 f" u& t/ p" }0 `- {0 H' B1 E1 t
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer% w7 C. i4 ]# T! Y# D3 N, ~
9 O% J4 ?1 o* u4 G" P% H) B
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
9 ~& x1 x8 f4 h' \;;将此次交易的记录加入到customer的trade-record-all中
: C& P" j6 ]6 Aend
# v/ A- y: p! B( N; h J* K, i
" ]- F1 ?7 h1 `2 bto update-local-reputation. i& l& T- x! _( v
set [trade-record-one-len] of myself length [trade-record-one] of myself
: X' `6 [$ t' K) P% T1 Z, n
1 D3 W& c( h" \' a' b0 m, P0 X7 E. B0 ~' l( C: G, B
;;if [trade-record-one-len] of myself > 3 $ h- r N2 x/ }2 w
update-neighbor-total* ~6 O8 S3 p$ L, r( z' X
;;更新邻居节点的数目,在此进行
0 r! U* L8 x" U7 u! Wlet i 3& Y- b6 A1 w3 O; i3 N
let sum-time 0, |% g. ]) O1 V! }5 e" L( ]
while[i < [trade-record-one-len] of myself]! ` [$ l3 m. x- k* y) l0 w( W8 L
[: Q$ z; d( D# v ~/ e, k
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )1 `; V, [4 a' [* z
set i* x9 U& \. ^/ ~8 }/ k
( i + 1)+ h) D x" y* Y3 _8 v
]
, M6 p1 w' O( w0 e* {% Mlet j 3% x0 T& V0 M5 I# C3 M
let sum-money 0
. G, K* ~7 s9 {9 b- ~+ O7 e3 Cwhile[j < [trade-record-one-len] of myself]
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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): Z- y* I' u6 U7 V: W
set j0 S: N# e4 B7 r4 B3 _2 p R Q
( j + 1)
; ]* N$ q% P+ D ~- w4 }, H]
6 w, P* E6 U+ n9 l0 n" l. ?: mlet k 3
. S7 A u2 I9 J( f! Wlet power 0
7 w/ d/ t4 M9 u: e7 Elet local 0
5 z) l8 A& X; q" E+ Bwhile [k <[trade-record-one-len] of myself]
, k9 W+ _. b' o& ?6 B8 B; D9 h[
; B/ c# M6 {3 ?) e& U. K% }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)
! T5 \( j, k5 X. R0 j- X, D h" Z$ V8 sset k (k + 1)
& [0 W: t/ w I. d9 I]
, m& Z i& t' J) p% A( B2 Uset [local-reputation] of myself (local)4 G3 u4 {! n: E: B: E
end
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to update-neighbor-total
. u$ d/ V& {2 ]) h9 \* e) ^
! [0 v5 H3 {/ m! V" N. Sif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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' }0 x+ w; w3 h7 l6 J( H& I
?. @/ y+ D- Y8 o) Y E$ Rend& i% \, V) W& V; P# O' |5 j
6 i/ U& V0 i- K# X! I8 ^
to update-credibility-ijl 3 I7 ^* F; U. Y; N* {
; P" h' H3 Y7 E4 k5 @7 k ?0 k2 P8 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。
" {# E! \* n, Llet l 0
1 i/ r. L" B0 Z* bwhile[ l < people ]; @' j- o/ F: b5 L/ |2 {
;;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
# `& D- Z3 b3 N* Q7 u[7 ]5 A% C8 l, v1 E6 D8 X
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)5 u, V& }& Q5 X' l
if (trade-record-one-j-l-len > 3)
8 Q* O/ h9 Y) A- V% s3 ~3 }: p[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-one2 _/ `+ s5 d+ P! }& W E% L4 X
let i 3' C' L: c; t/ B" E. P
let sum-time 0& K) b# ]6 \& O `1 s
while[i < trade-record-one-len]
+ T# ^6 T; {6 w' O( `& V3 V, w, |[0 s& C( C, s1 E$ f6 h
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
8 J& o; b9 \: j/ Yset i
- B" E/ a& P4 t! G3 g( i + 1)1 O6 y! t+ Z$ `. e8 `$ V
]* c4 R! @# n( l( e& U3 U* J
let credibility-i-j-l 0
+ ?' E3 h( n" r& T;;i评价(j对jl的评价)
! S" E- B! r0 v3 tlet j 3
5 M9 n# b0 v, v+ ]let k 4
# W- |+ |8 y; w! a, ]3 Fwhile[j < trade-record-one-len]/ m; v8 f, }" I5 x
[( \7 [& r3 ] E
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- q. }; ~! E; t7 I+ Z7 m
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)
9 Z3 ]& ~/ m' [8 D0 Gset j1 P$ U; c% Z; M; u' q& w
( j + 1)
3 v- w6 e' V: F. Q6 _, C c]; H) [- m3 R0 T. r$ m% x! d
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 ))2 [; R) C/ ^* g. r; M% O( r% f
/ l# k( T, j4 g
) v$ v& r: J- _9 Mlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ Q# c+ {& Z$ m7 f0 B;;及时更新i对l的评价质量的评价
2 U7 N" `, z4 @, J) B2 ]3 L/ rset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]7 l8 ?9 ]& F. p& D& H8 B
set l (l + 1); G T$ r( C V1 s2 k- ^% `
]
. l$ N9 X& U z' y o- b1 j! yend4 r7 \! S3 I2 ~1 H* b* Z8 y
+ u) h& c; a9 |: {to update-credibility-list- r b; ~* X3 ^9 L5 Y
let i 0
" ]9 C5 ~7 W% j6 z6 B5 Wwhile[i < people]
. y+ n. O' R- C7 R1 L[3 T. X/ f! L4 }) Y6 T
let j 0
2 }5 i7 ]% w8 alet note 0! z5 x' F( G: }% E8 B& K- b
let k 0- h$ R x# R: @, ?7 d. J
;;计作出过评价的邻居节点的数目
' t' q/ ?( B, A" I; K2 H4 ^1 g4 |while[j < people]( Z) \) D0 ?8 k7 d" [
[
1 @' R$ V a( V8 k+ W( i" tif (item j( [credibility] of turtle (i + 1)) != -1)
2 l! t; E+ {8 S" v7 h% O( u;;判断是否给本turtle的评价质量做出过评价的节点* h Q& F: ?6 \2 K. q$ s
[set note (note + item j ([credibility]of turtle (i + 1)))
7 Q5 d% \) t9 G) W4 n8 \2 a;;*(exp (-(people - 2)))/(people - 2))]
8 b: p4 e. I S% E& ]7 }) Pset k (k + 1)' e7 d0 q& e. B6 J& a. {
]
; p0 e5 T1 T! W" aset j (j + 1)+ ~- ~; W o% Q( V# k1 |
]) X( @- L) ^* x% p" A/ q, ?
set note (note *(exp (- (1 / k)))/ k)8 ?; T! s: R: X; A! R. Y4 j- Q# t
set credibility-list (replace-item i credibility-list note)% ?. |9 l _% y- h
set i (i + 1)
3 h6 g; E! I x0 C5 X; ^! X]
, X- p# I; k% p% Kend) {; F2 q {9 ~3 D# s. a8 U
v) W- Y7 j8 Z& T$ [3 j. B
to update-global-reputation-list
- x9 C' S# p, olet j 0- ?5 F" N9 J) Y( G F
while[j < people]
9 u x3 |' H, @; i[
& u1 v N: C1 R) [2 _$ D7 t. ?let new 0) B( ~! k% l0 u; t4 C1 \: T# x
;;暂存新的一个全局声誉) P, J5 L/ Y* F Q; g
let i 0: f4 O. n' [6 D4 H' q- B
let sum-money 0
4 r# |0 C b/ D1 F% Clet credibility-money 0
! {' B: o6 O# x/ cwhile [i < people]* `) V2 `% W3 I# \. S9 A5 @
[
$ ?$ y% c" E4 r, {% Q2 \set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
* n; Z8 J. V0 k7 ]% x- W8 wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
" X- A1 e/ I, l, [0 f, \set i (i + 1)
, ^5 Z+ k! h3 p5 c# X/ l]& I* w4 G$ z: e3 P( ~
let k 0# L$ @ l. n3 o* ?8 m8 R, V
let new1 0
! @% R3 |2 @6 V" _( \) Cwhile [k < people]
5 k: {0 T8 v: e" p[
# X+ f9 f* q9 ^' I, g2 J, q0 Hset 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)
& b7 v/ r$ L" l) H* @set k (k + 1)" q2 ]# s w4 d3 d3 p
]' {- ~/ I6 ?$ F6 V
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
' }% I0 O! n l* pset global-reputation-list (replace-item j global-reputation-list new)
7 g# g- e; ?. l0 V, dset j (j + 1)
; N/ C y+ J# `& z3 q4 c]( v9 k- o( `" h! i9 g
end
2 ^3 B8 W6 S3 y4 i( @& o% t9 J Y) P1 A1 K+ I# q
n8 j+ M" x9 p! N1 _
0 v. P; V& a" s {! ^( ^$ q- Fto get-color! J( ~5 t7 p- H1 A- A
4 V& \' I7 ]. m. A- @
set color blue
/ j! G) B. J; r7 g+ ?% V8 ^end
9 b" S& }; m8 a! m- v- Q- f3 v7 g+ }; \& Z- Z( b p
to poll-class
0 r. E5 j4 o/ k* ~5 }8 o/ L9 [& Cend
. G8 {! D( u! ?! H w0 e+ ~: R5 k* k; Y( J. ?3 B
to setup-plot1
6 e4 J5 b( w( J! e" C$ e
b, @7 Z, G6 Q+ @& ?8 aset-current-plot "Trends-of-Local-reputation"
% Z g; [9 J0 ?# w G2 f0 ^: q9 H. e) }9 \( Q% _
set-plot-x-range 0 xmax7 Z+ _" A. l: d6 t( ?8 u( Z
# N7 Q- g( T9 G" dset-plot-y-range 0.0 ymax! A% r) G; C. _: a/ a
end
& Z1 E% \; [! A8 Q9 u
5 T l3 ^3 }0 Q- ito setup-plot2! S, M& O# m8 x8 J5 Y
( g2 G( k$ w5 \0 p+ fset-current-plot "Trends-of-global-reputation"- {( s6 c3 ^$ `. a! z
2 p3 a: o9 i! m |
set-plot-x-range 0 xmax
2 ^0 w( R5 ?4 n }0 A4 C' C) s1 ?/ T/ F0 G2 D& f O% V
set-plot-y-range 0.0 ymax7 }6 J$ q& K$ [3 u9 k+ t/ @, E
end; k+ r$ k2 u$ ]" N, f
1 s4 L& ] }; h# dto setup-plot3/ a4 b k! n' x0 ~$ H. D
2 }" n/ G0 T2 u' r/ F) L( G# ?set-current-plot "Trends-of-credibility"' s* S9 N( X* H* r
/ q- v3 w3 h1 R( k& a( h! K, w( p- j+ }8 O
set-plot-x-range 0 xmax" {+ U5 G. B8 f7 U* X, O1 c& F
# M h5 T( C% T" _+ Zset-plot-y-range 0.0 ymax
% s7 L! n# u* E" N' [5 ?end# W9 X- o4 Q7 u* M4 R
5 l1 E3 }& }0 S( ?
to do-plots
* r2 G: D! [5 V' u6 i+ |set-current-plot "Trends-of-Local-reputation"
, _" P3 M$ |+ R$ m; x) Z% _$ G: K [set-current-plot-pen "Honest service"
- I. Q+ k4 e) d5 [" nend' j& g8 T" ~/ b9 b+ I& W
+ T" i3 \' Y0 e
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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