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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
2 o" S7 o' l1 \ F! d M. n' i2 Bglobals[
- e$ _1 I' |! d( Pxmax$ c d- I3 j& B f" Y
ymax
! U- `5 @1 F- d# }* \' jglobal-reputation-list
: z* a- @! f2 N0 X6 E
" {' s/ x. t. `2 i;;每一个turtle的全局声誉都存在此LIST中9 S1 N3 k: x& b) N, Z" o. P
credibility-list
' m- n# o- S% W3 K! [- V;;每一个turtle的评价可信度+ r- e5 c$ X0 K9 F% D- i; a
honest-service
{+ j' E* g# k9 O3 l, b; `unhonest-service
3 z4 r4 C( Q: Noscillation' H" O k+ O! {/ h* A7 e! F1 S
rand-dynamic
2 u8 P7 u3 z C4 X$ n9 E]
; k0 M8 E. [' e( m
% C0 D$ D7 z5 a6 K4 P2 ], ~. n! h/ vturtles-own[3 |5 J2 {5 h! n( T8 B. s7 ^- u
trade-record-all6 C2 W/ Y& ?# z: K7 e5 w
;;a list of lists,由trade-record-one组成' i: L6 z j' j3 B( Y, m
trade-record-one
q" M- b* Q! 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! d4 s( Q$ x* V* m+ N
2 E1 w& |3 `6 T6 Y# H; J! i& l;;[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]]
, L# h# k2 V( e% ntrade-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]( h2 F' M& ~" g/ _9 J
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: \7 t5 g$ V, z, F# B) A
neighbor-total7 r7 D& _' H4 Q( `
;;记录该turtle的邻居节点的数目
' p7 O) D3 M6 C6 F( L' j4 V0 ]4 U( Xtrade-time4 X A6 D: O% H/ z2 T
;;当前发生交易的turtle的交易时间
7 k, `0 F1 J3 V3 k5 j, nappraise-give
* A* W' C* g8 f) i/ \- g;;当前发生交易时给出的评价
$ K2 Z6 m" |0 Y3 ?! _; K( s4 c: Y) ~appraise-receive
6 N* f# U, i2 v S;;当前发生交易时收到的评价4 R+ X& p" [# L$ h% Z! m% B
appraise-time
/ z9 f+ b: D7 Z;;当前发生交易时的评价时间0 e- m! [% A# W8 l3 X# R4 `8 N
local-reputation-now;;此次交易后相对于对方turtle的局部声誉7 f3 I1 J; J% K
trade-times-total
- {2 {- n$ d1 K; B+ G;;与当前turtle的交易总次数) g5 a& J: L1 w8 R% L! Y
trade-money-total
2 \* z- J$ T/ [% X7 f1 {5 W;;与当前turtle的交易总金额
) G- P0 c; i8 {local-reputation% k5 C# l1 ^" t, l! U- {# [1 Z* t
global-reputation
0 j2 w* S4 A( @) w4 @credibility F+ L2 w5 |8 P
;;评价可信度,每次交易后都需要更新
# ~! _4 r7 q" I6 x) hcredibility-all7 I6 } p! K& l0 d
;;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
" e" z! U: p# v+ W+ N( I# G& H$ s6 h! F
;;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
1 i. g$ x! G* l5 Kcredibility-one
# _- p% a' O4 ?' Y: r+ j* y% A/ w9 G% Q;;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
# d( o8 A" z. k" |2 e0 ]. p! Fglobal-proportion
2 I& T/ y- G! ]- s$ V9 |, R: ~0 xcustomer
- J1 L9 P }- e% h* y1 P8 T& p7 Ycustomer-no T8 T) F2 ~) ]5 ?6 `" z1 x
trust-ok2 d0 r9 }' T; `9 k" L) [8 T
trade-record-one-len;;trade-record-one的长度, T Q% l4 z- x! D& t1 l
]
4 _6 V9 s) `/ ^$ z8 D) d
! y! a& Q1 e; _4 ^9 [4 {* c& O;;setup procedure' i% ^ b- n. q v7 p: Q$ g+ z Z. Y
0 E, X% }) d/ l) r4 b* Y4 _
to setup
* E5 @' l& N) ~. w3 g# X k: b, T' V
& @4 Y; J* s' N( jca
4 e% ~8 M" u: M: z, w7 v$ q6 y# E# R
initialize-settings0 T# U+ k2 _+ m( V" ]9 G, E
+ F+ q) L& ~4 L' a/ b4 S
crt people [setup-turtles]6 |4 A+ j# O6 i4 R3 L8 C
d! I6 S. R' x6 `# @3 s
reset-timer$ E; G4 [: O4 ` l- `* C0 V2 [
m6 q( E @ D$ Z6 J- d1 D* n
poll-class
% g" C2 w* z. \& v7 E) I/ A# Z5 N( b3 i- u7 @! N
setup-plots% u; P+ {$ t1 d3 F$ ~ y5 v
+ A7 y3 Y0 X$ y) ^( Y2 u }1 A8 bdo-plots
U, K( F- y/ R. d3 A) O& c) W9 A. s' P7 k5 Gend
* r# W) _ c9 h4 }7 w# W/ G f6 e6 b; |% e5 _% F
to initialize-settings3 i% N, U. B' T8 i2 @& L" Z5 B
) \6 M; I* B4 q; dset global-reputation-list []9 A, ^! z6 u8 W5 X
3 e$ n. x) ~/ V4 }! |
set credibility-list n-values people [0.5]
. }, e5 ^' f. o0 _/ R/ k! {% w* V3 n( p3 Y
set honest-service 0
2 m4 w' o! h4 o# d0 G& Z+ H( E7 t9 A" {- q; Y
set unhonest-service 0
0 S0 R |+ ?$ |! M! n |1 `
8 R* q, f8 v1 Q+ H- p! F8 Fset oscillation 01 o! Z' g. \' b/ f& U+ ^% j' ~$ Y) Q m
F7 C6 r$ r) W7 h- p L8 G
set rand-dynamic 03 a% b* }3 B4 x' q
end% q1 O- Q4 r# R4 b% ~/ m1 h
9 Q4 f* |/ c3 o8 J0 m
to setup-turtles
# V; _/ E. E; s6 k6 [1 fset shape "person"
' _- V. F/ O$ p( ?' asetxy random-xcor random-ycor
A5 C- W' @. G" j" _/ Dset trade-record-one []
: R' Q! n' c4 C% a3 `0 v6 U* `& c: \9 q
/ A3 ?+ X( m+ V' V9 ]0 s' rset trade-record-all n-values people [(list (? + 1) 0 0)]
# m" ~4 F: _* k. M. |
2 A! c! k# I/ ?$ B3 N8 m: a+ Gset trade-record-current []# A0 L9 s5 j/ ~$ m' R9 y: |
set credibility-receive []1 v, H& D [1 j4 U+ V) F
set local-reputation 0.5
4 P) s1 u8 [' Jset neighbor-total 0" a4 c# w1 `8 B; | b5 Q
set trade-times-total 0$ t. R7 Z A3 c$ X5 e/ G
set trade-money-total 0, {) [6 o+ o$ Z$ L
set customer nobody+ l5 P# B% ~6 j
set credibility-all n-values people [creat-credibility]
8 C5 L9 D- l @set credibility n-values people [-1]8 ~+ A7 j( h* t9 T) p9 e" F$ `
get-color* E- l$ b' n5 ^- ?7 S, H5 }8 N* H# b
6 C- G5 R. E A" P1 R6 mend2 \( {) P7 m9 T; @7 g/ }3 R, }
5 w. b9 W7 ]% L- @/ Xto-report creat-credibility/ U- U( {0 @- S' C$ C u& u
report n-values people [0.5]# h; g! M! `# N1 C% @: I
end
h/ A6 x( c8 f3 O0 ^' \) x5 q+ u
9 f# c" ], S5 N0 Vto setup-plots- `/ x K5 C0 c7 W+ q0 c6 a3 u; a
* m/ D) M. s& V+ Iset xmax 30
( I5 ]9 b8 ]% H( y6 g# ?2 D; b6 ^' s, ] a7 [/ d' h
set ymax 1.02 _* ]* _1 Y9 j3 I' H" t, H
+ N, s: F' n) R, |2 nclear-all-plots
1 |3 x* s9 D' f- o* \
- l; Q2 j$ b$ V) b4 \" \, csetup-plot1# h8 S4 ^$ a- ^9 n! b6 W$ Y
" V2 t, X5 s! q" h' wsetup-plot2
4 _. ?& R: P1 P+ ^5 y6 y H! @7 A
setup-plot3
4 V' d% M- S, yend& W2 L# \; `6 ~9 _6 P. C
. _/ K5 Q) _) b) a. F5 p) i
;;run time procedures
, b) `. z0 z1 E' Q% D
$ u- w" u. X, |, S+ F$ lto go
/ ]0 [- r$ S1 |+ A; }0 h% F1 T$ r3 \3 Z# S
ask turtles [do-business]5 B' R; @, {' X3 B# [2 I" V! p9 k
end
) }, E, t9 r/ B% v2 {% }4 T9 Q
to do-business
0 j* V# h- l Q( g- g+ w8 H* K# Y1 U( s+ W) `
5 p6 R& {! B# L, i7 ]9 s
rt random 360. H2 @8 t3 C$ e/ B2 Y5 f: L
/ g# G2 m: i% @2 b' R& E0 wfd 16 c6 M4 u: u1 b& K. [ e) M) X$ G
0 @9 \- h% p# f( a( Lifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here& |+ ` c- z2 ~/ v9 c2 m
9 r- \; {5 r: s8 O! H
;; set [customer] of customer myself
) P X9 G" j I7 e) s/ k9 } E; }6 R4 ]% ?& M9 b
set [trade-record-one] of self item (([who] of customer) - 1)3 x% t! \: e J, Z% l9 z
[trade-record-all]of self
4 F2 J. Y6 A2 s6 ?# @* z, e8 n% X, q3 t;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self% }' I) u) @: r# j$ F
# p0 d% i4 |, s' b4 r3 Nset [trade-record-one] of customer item (([who] of self) - 1)0 r0 ^0 E. E9 |3 U1 n. u
[trade-record-all]of customer& h" D: m y2 d& A/ U0 v% ]3 Q
6 {* y7 X( U7 N6 }9 n( P6 _- `
set [trade-record-one-len] of self length [trade-record-one] of self
$ A {8 k, W- f8 W4 o$ X6 }# x2 C
9 X: L, K8 P+ wset trade-record-current( list (timer) (random money-upper-limit))
& j, u/ T% v5 m( g, A' |% M
8 y. s& K, Q# Mask self [do-trust]" Y% z0 i: ~2 z- f! C- @
;;先求i对j的信任度& L8 F( u" s3 x; H8 f4 W1 K
1 W5 [& u6 z% C! `1 r1 D I
if ([trust-ok] of self)
1 w1 P) `% R# }$ o; s- \( l;;根据i对j的信任度来决定是否与j进行交易[
: C1 L4 ^. ^0 q5 S# A( v, [- ]ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
8 H2 c$ H, K% u* M6 e+ E& t
, c' I+ V: v+ W" D[0 g7 I) \( G1 i1 Y0 \& T# P
+ v |" N( m }do-trade
0 X, k8 K, }: p' [- z* Y0 M S0 f6 ? C
update-credibility-ijl0 n( h$ r, m+ K! Y$ j9 f8 O9 l
$ d' b$ @$ G, pupdate-credibility-list4 U6 }# ]2 l/ ^/ B8 {0 ]
- d T* Y' s5 ]2 g
2 X* D. ], [" v! L8 t) P4 e
update-global-reputation-list
2 r& Y/ W& S+ ]2 K( [& Y) P/ S2 w% f5 z; f5 Y3 R( U& E* W
poll-class9 W* m7 M5 |4 H4 V p. d
5 b0 c# i; L' g8 L2 E; a
get-color
! u8 r' ]4 E& H8 P( w7 }, r% R1 S# g0 m0 J
]]
% p T j; Y" j3 ~& Q# k5 |1 ~8 p* @5 z5 ^5 ~
;;如果所得的信任度满足条件,则进行交易
% e. S( d, v8 e- D- t1 e: A2 V: K6 j* {; N8 O( I$ b, F
[
5 ]& k2 [; ~+ O/ z5 h9 e. [0 M
: C5 E$ A9 c% q+ i& Urt random 3600 A+ K9 f9 a6 h7 X5 \
) X: B1 `, t# o/ zfd 1$ S/ A& C0 T! e( {) x% m5 y
8 t) o$ d# ?; i% X]) e' M O2 \8 }: M
5 J! p; z$ s# `
end$ K8 I' u8 t, u
3 k- v0 U6 P0 z( T# s
to do-trust
5 s! j* Q s6 a& Sset trust-ok False
. H0 |$ P( m- g/ }7 r* U9 `' O/ `$ o- [6 o+ j; B( z ~
* M& h) O% E9 `- d& c+ G# i s+ J
let max-trade-times 09 q/ S- s! i8 S0 H
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
- |' N5 c+ o7 b& ?; v9 S6 Tlet max-trade-money 0) O# {4 \5 T2 n' v
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]! r9 I# g5 n. S& f
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). f% K6 o# D! ?$ e/ k
; v3 J [8 S, @& l; _- E R6 S7 U
/ A! Y/ O, C8 d; uget-global-proportion* e" t, d! [+ I/ I2 B X5 ^7 ?
let trust-value6 j6 V. ]2 a1 \: L J. Q
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)
, K, [# v) K8 `$ y# N/ w1 Aif(trust-value > trade-trust-value)
# L' v& l8 W6 T- M% @[set trust-ok true]/ p8 [6 O7 N( m! d
end
& Y' Y# h5 b( A/ X9 b$ b
) m7 f5 V; I4 ?0 R; Gto get-global-proportion
7 X% P! }/ o) n& W3 D% e4 M5 Xifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). ?$ b+ X! J3 I9 ]7 _
[set global-proportion 0]+ R8 @8 i( F: E( N7 ]
[let i 03 B8 e% @" V# z1 o! s$ U8 f O8 h
let sum-money 0
$ I4 \. H6 \2 M% l" v4 Ywhile[ i < people]
2 n4 d5 x5 y* c[2 V& g1 h3 {: o) [5 v' l& D
if( length (item i( m5 B4 k! ?3 o* R& r& j4 T
[trade-record-all] of customer) > 3 ). q6 h% W3 e) k5 g% z
[' S1 p" @- }3 g8 M j
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
; N* h3 I2 Z6 y8 F/ p], R! y9 G4 _$ G0 W/ l* L
]
R; H& ]. r- N% Y1 m Dlet j 0
, s$ {# E; M' u# H( qlet note 0
6 p( [9 g1 I+ V- | X# Ywhile[ j < people]
& I9 G ?" B- n( ?1 ]1 I[
! {4 X4 e% v8 _if( length (item i$ P# [5 f( f; x$ h" c, ]
[trade-record-all] of customer) > 3 )& A1 s" Z# ?; n6 G
[5 i+ a8 Y. q% d5 f% ` n
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
3 |0 u- {$ c1 h( O[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]( j1 ?! K( i9 ~3 ?
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]. o! v* E$ Z; |4 O( U9 \" D
]; m( c. q: P5 r7 Y0 P, t: H) t
]# ^4 d7 D2 `9 a
set global-proportion note+ ?0 n- O( r" h. X4 G% y
]. `/ n. w7 L: x& ]
end
6 `' l+ x- k8 M" w
6 V: [" ?1 W8 H3 `6 ^to do-trade
+ N& x6 r9 Y# `# C;;这个过程实际上是给双方作出评价的过程* N- s1 S# o5 z) F/ U' E7 }" o
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: N: O6 V- P5 B& Kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
/ |' F h: |: F$ M' tset trade-record-current lput(timer) trade-record-current
X, a$ {2 n9 T( ? c;;评价时间
- i4 Q, Y5 I3 x" z" Rask myself [; W. z3 J/ k/ u- |; X* L; }. [
update-local-reputation
# Z9 Y4 [6 _" @/ P2 pset trade-record-current lput([local-reputation] of myself) trade-record-current& H+ w0 K6 {! l% P6 {9 v" P- |% v
]
0 _4 f( h+ P: ~) V9 p7 ]* c9 Y6 `set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
" `% d' K$ w a+ s0 b1 Y1 h+ B" r: T;;将此次交易的记录加入到trade-record-one中
# I* x% v- i0 R- n# Tset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
& g8 C t) x% t: C( K+ N1 [7 Slet note (item 2 trade-record-current ): J$ g d' t @
set trade-record-current1 k/ k" D1 q5 ^
(replace-item 2 trade-record-current (item 3 trade-record-current))0 N; W, z) Q# B* v5 ?
set trade-record-current; {3 U; x0 e: b, Z" M
(replace-item 3 trade-record-current note)
0 [4 ]! L3 i; D7 T5 o7 b' v7 E- x) I; ^- _( b: B5 l* Z$ ~
, W1 \8 `2 t! T( l4 O
ask customer [* ?9 d, U+ J# G
update-local-reputation6 }2 ?. ?7 R$ b9 G' T
set trade-record-current( h$ E% Z; L* a a6 W
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 7 G" I# P* X' C8 Q: D$ o
]
+ _& }+ W' U5 Z. l n1 ?8 P3 J! h, m
* l8 A8 [/ w( t6 Tset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- R6 e' A0 Y8 d2 G ]: ^6 t
, L$ P( Y; b0 `& g) ?% V4 cset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
, k* k" P7 \% V8 m3 V;;将此次交易的记录加入到customer的trade-record-all中4 o% r5 a/ |' M8 P
end `; i0 y5 G$ H
1 i5 M7 P g e2 Y' Y! v
to update-local-reputation! K! w, D( a$ _. _0 E( B
set [trade-record-one-len] of myself length [trade-record-one] of myself
4 T3 d# t1 b3 B! V' d: n
5 t( q9 _0 z4 ]9 X- S' K$ y% [% z+ f9 [7 @ @5 M s) _
;;if [trade-record-one-len] of myself > 3 6 N, t: ?; [- l" [8 P+ G/ L$ D
update-neighbor-total
, C* L* V) a# ^ O7 H9 s: C;;更新邻居节点的数目,在此进行; e* p) D- z. m' I
let i 3' M2 G2 O0 X6 R% u: D
let sum-time 0
. c! s: ?/ `1 iwhile[i < [trade-record-one-len] of myself]
8 ?0 M5 F: {+ K% o8 @[# x4 Q2 E$ E8 s+ ^8 @3 `
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
4 _# |1 ?* H$ {) P$ pset i
& f$ w, k6 `" J, F0 X, K( i + 1)6 q+ q. t7 V! L5 }
]' r. T! G. H+ p [) N2 i
let j 34 k" `. D; Q7 w' ]" [2 b! r; T
let sum-money 03 B! m8 D; ^: p4 q" H4 K$ M3 v
while[j < [trade-record-one-len] of myself]8 k, N8 E- K. ]
[6 U% m( ^% A1 [! l3 j
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)& l7 J# |8 f" B& t$ E# l$ S3 F0 V3 V
set j: t' t, r# d4 _% f
( j + 1)2 Z) M8 J0 E7 w% J" u$ Y. P7 L$ K# N
]
4 p3 e F9 S, `; u; hlet k 3$ p! y$ R0 ^- ^
let power 0" @+ \$ }+ t9 `7 Z' P
let local 0: V# c# ?" g& l! u0 n- H
while [k <[trade-record-one-len] of myself]5 B6 u9 ^, L; j
[/ I/ i' F3 c) \4 O' A* Q& t8 j
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* ^" f' E* d5 j2 ~set k (k + 1)
; P: u1 z3 S% Q]
- D! w. o! a3 @set [local-reputation] of myself (local)1 K0 H1 N6 y3 j$ F# e6 n/ a
end' _3 v! e" B: O6 ]3 o& O9 H* t
+ l8 ~; x2 d; b* A2 F, U; t' Xto update-neighbor-total3 ?. J: k/ p6 z5 i6 m; S0 D0 [
1 ?3 l: T; m/ h: L7 X# d8 t
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]0 `' C9 y) G2 `+ I1 f
" u$ T: e3 [" S, |
! N: Q7 E, d! u$ z7 s) Aend" M5 O" v7 q" c% {, t9 |7 j
. P0 E8 n* i- a+ x* l0 `to update-credibility-ijl
1 J+ q1 p. h: C1 d, t' o& f& r9 z7 Z+ ^7 |4 R
;;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。0 h) u* e- V* U$ E B
let l 09 O9 D# A$ y1 r' A: u
while[ l < people ]. e L. D0 A/ P5 j+ Q
;;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 @) H+ n$ c+ S% M: {' V j
[
2 t& w" q3 a' S3 G: ]let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
6 k3 A/ @+ `! C3 Qif (trade-record-one-j-l-len > 3)
/ y' j. P3 l" K, u: 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-one
1 i6 H5 n; p0 dlet i 3
$ x: _$ e( }& u- P/ zlet sum-time 05 U5 o- w6 X; V. O# k/ P i5 L; a
while[i < trade-record-one-len]
) v* E6 U3 h# K+ y[
2 B. |+ @7 O ~2 r) Q6 z2 c) ]set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
j- ^0 j& K/ L( Dset i
* I4 n, l' C. O) g7 B, A: r$ b( i + 1)9 m6 O, Z; _: c) j3 j7 s5 |/ |
]: V ?* t3 h& K# F: N# F- ~" o
let credibility-i-j-l 0
4 `! u% J/ f" `* }% \! f;;i评价(j对jl的评价)% r6 n7 C x* }' ~8 S
let j 3& c) Z1 U+ A2 n3 B. ]; S' ^4 R
let k 4
: c& B& O. E; g" G7 t% z2 ?while[j < trade-record-one-len]8 i2 Y& e6 l) C# Q
[
+ Q6 L$ X2 ~. C# M$ ?: M* H ewhile [((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
; D, Q( k2 @ U) e g. G" Uset 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)
- d# C9 H/ z. h6 x! K: F Mset j$ G( P2 ?4 M8 V; ?6 l ~7 @
( j + 1)9 I# _( \" y+ ]; G/ O% X
]; y" ]: a6 c7 D# Q
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 ))
( ^/ F7 f+ R$ g. x5 \7 \
) w1 M! t) Y; Q' i; Q
+ n9 o8 p: }+ hlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
. y. p, V9 @& R: |* G( E8 P- Y0 t;;及时更新i对l的评价质量的评价+ N3 s$ b( X$ h+ Q9 ?
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]: V- {6 A# f0 c$ m6 \
set l (l + 1)! [8 L8 x* Y9 T7 U5 G
]3 ^% C$ n. s3 w% G
end
3 N4 j$ W9 J6 b* \$ I e$ H/ ?+ y9 X8 \4 S
to update-credibility-list. ?# p: @5 f) z; h9 L
let i 0
( r t7 j5 m* ?, y9 D& N' @4 R7 Qwhile[i < people]$ ]- R0 \& g0 t; o) o% ?' a
[5 M2 f! z$ {& ^7 H1 H' g
let j 0
. K" ^$ v* r( g4 s5 L! Ilet note 0
, z3 X0 i" |) r5 }5 e( H. ~+ ylet k 0, |% E x# c: H1 w
;;计作出过评价的邻居节点的数目
, t5 _+ y5 }% p" J" Gwhile[j < people]
' B4 v# E" k* [' r* ` z[$ t6 q7 c) p6 o% ^- S3 ^1 E" U
if (item j( [credibility] of turtle (i + 1)) != -1)/ |7 `% @5 {: g( P. d3 }$ @; E1 O: w
;;判断是否给本turtle的评价质量做出过评价的节点7 J h3 Q# U2 `* E9 e- @5 l' @
[set note (note + item j ([credibility]of turtle (i + 1)))
+ O) L5 _- Z1 F$ }) h, F4 L;;*(exp (-(people - 2)))/(people - 2))]( J. m _$ |0 i6 E0 T3 u
set k (k + 1): f1 n6 S. c5 X4 K
]6 _( M% ~ ] K- E& {
set j (j + 1)& t/ ~$ w3 v& D5 X% B* A2 g3 `
]8 R# k0 J7 R, w$ w
set note (note *(exp (- (1 / k)))/ k)0 I( b& j" ~: u* s/ A. b
set credibility-list (replace-item i credibility-list note)
) q! n- n4 a1 F, |set i (i + 1)
+ F' m- L; m" A]
3 k W0 T6 R0 K# j) Q0 c+ ~end
% z8 k1 j/ D: z8 L* v" Z* I5 g3 u) S) C2 K+ F/ d y
to update-global-reputation-list( k' D1 T0 l/ a. ^
let j 0
* d9 Z0 L4 e; Qwhile[j < people]
2 R* R3 c% V4 D3 R5 f6 @[0 P2 X5 a1 H( k0 i
let new 0: u( s% G8 k+ ?7 d% x" f% u
;;暂存新的一个全局声誉* ~! v$ G7 x9 A% F7 I
let i 0
0 Z6 R4 s, {' C# Glet sum-money 0, \7 }, _+ s, O+ S0 r2 N' F
let credibility-money 0
6 e; V5 c% t# }2 Dwhile [i < people]
+ ^) v1 |; x1 ]$ i[/ c t0 ^1 V/ M7 w \, [
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))) [% D( ?2 L$ _: v$ l( z- t
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))9 n/ A' e+ F+ J
set i (i + 1)
/ F/ C/ G5 X7 U2 k1 k; r% p S]
) F8 ~% Q3 h. J3 E9 |( d j( Zlet k 0& Z/ }& a5 o% U- A/ Z. z
let new1 0( E `; {3 D* e& L: L/ ~
while [k < people]1 F* M4 d9 m6 g$ B% L. M5 j( b
[( l0 ?' }6 c* l; [/ ^8 M- x
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)
! _# i6 h! f2 x/ Y- mset k (k + 1)- N; D: C$ v( R) V. G
]
! r. w6 D: E( ]. m. Eset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
5 h8 S1 o8 { Z2 |& K7 |. Mset global-reputation-list (replace-item j global-reputation-list new)9 R8 X0 k2 i M# O& x8 w2 m; o; o
set j (j + 1)
$ s$ m Q4 e8 r7 J& N: v( N8 M]8 [9 M) N M2 {) E" |
end
5 [% P, G; n# u0 V# R$ x* Z, G0 g7 d N3 B2 I: B( Y3 u
& I( `# P5 Y: B' z5 I9 p
% h1 b# n9 X1 y, j, i ^7 m! o
to get-color- Q2 g& k. a8 ~6 s. ?
( g" h% R" L) X" `4 f+ sset color blue3 H- m: ~1 H" T0 H
end/ S+ I, u# w' R, I6 b5 R8 t* L; }
5 q' O9 P' n: {; J6 G( o6 \to poll-class
# C+ k7 s4 q7 Y. dend" Q6 p0 M7 Y- C
9 c, X, M j" g$ r. p1 n4 I
to setup-plot1
5 `2 J: F8 B/ p3 J. Y& S' ]3 f; P- W+ E8 \: W0 }1 @
set-current-plot "Trends-of-Local-reputation"6 t: B* F/ Q; c3 n, C% z: K1 U+ S
# Y. O U8 X- `( o$ {! xset-plot-x-range 0 xmax/ r) a$ [( s" n5 d
0 n& c+ ^* O/ N/ v) `! ]$ \3 ^; i- Kset-plot-y-range 0.0 ymax
& p, ^( `: o. E- J) K4 _end) }6 r: i' O7 }$ i$ }2 B/ M0 w
5 A! }6 `) I N. V0 u+ ^) cto setup-plot2! e. B- b* E& x- [6 I
. k5 P; z/ d# @
set-current-plot "Trends-of-global-reputation"0 \* T G2 ~0 x [7 W" @
4 O7 F: E' }) p8 ]5 u4 h0 G
set-plot-x-range 0 xmax! p3 H: L+ b4 [$ c
" ?7 L: O" f' L; y# N( R. Q) N R
set-plot-y-range 0.0 ymax4 b b8 t8 |; K
end C6 v" d$ Q' C0 ]0 @8 ]
2 X1 L7 G3 r- M/ Y- I1 i7 Wto setup-plot3
# T/ W% I; Y2 U$ @) [5 ?9 V3 T* y1 }; c( R5 W
set-current-plot "Trends-of-credibility"1 g4 _) h6 S, D
, E% z3 t* P9 N+ _: L( _set-plot-x-range 0 xmax
: i# ?+ m6 c) e) a% J( N! J V3 k8 r5 W9 E
set-plot-y-range 0.0 ymax3 }5 n5 p3 w! M3 g9 b( T
end
5 x. G; i5 Z2 A: f9 t) {8 P1 N1 [/ U8 F( A+ I
to do-plots1 H: S! u% {( z; Q
set-current-plot "Trends-of-Local-reputation"
5 f* O7 `% i+ W9 ^, Wset-current-plot-pen "Honest service"
* [7 s/ N- }, q8 A3 cend# U9 _. o6 j( U1 m
- t, A) ]5 F. P8 A8 Q) r[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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