网络节点重要度的快速评估方法.pdf

《网络节点重要度的快速评估方法.pdf》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、33
7Vol.33,No.720137SystemsEngineering

2、Theory&PracticeJuly,2013:1000-6788(2013)07-1898-07:TP31;N949:A!"#$%&')()*+,.-./,02143,56,74848(9:<;=>@?BACDEFGH@I

3、XjXkXlSsUTtXurvVwaXbXcXddnmporqxXyTzV{,uVWTYXV]X~X_X`XTVQXrXSVUV~XXxXVXSVUXTXvV

4、X},XXb.uVWTYXV]X~X_X`XTTVWTYVQTSVUVVXTuVXXX_X`XWTYXuXV]X~aXbXX,,gTvVwXWTYXuVXTX V¡TSVUX¢X£VVXX¤X¥,WTYV§X¨TV]WTYXV]X~X§¦X,©XªX¦XTXuX¬X~XiX®X¯T°V±X²TuV³X´XµX¶X·X¸®XºX»T¼X½TXu«.3oXqO(n),O(n),X¹^V¿X

5、À~VÁXÂXXÃXÄTSVU}X¾,Xba,.ÅXÆXÇÈSVU;WTYXV]X~;VXSVU;VVXFastmethodfornodeimportanceevaluationinnetworkXIAOWei-dong,TANWen-tang,GEBin,LIFang-fang(KeyLaboratoryofInformationSystemEngineering,NationalUniversityofDefenseTechnology,Changsha410073,China)AbstractNodeimportanceevaluationis

6、oneoftheimportantnetworkanalysesincomplexnetworkanddatamining.Howevermostoftheexistingmethodsarecomplexandslowforlargenetworks.Inthispaper,apracticalmethodbasedonresistivenetworkforfastnodeimportanceevaluationwasproposed.Nodeimportancewasevaluatedbasedonitsin uenceontheaveragepo

7、werdissipationinaresistancenetwork,anodewasimportantbecauseitreducedtheaverageenergydissipationofthenetwork.The3timecomplexityofthealgorithmisO(n)intheworstsituation,andisO(n)inthedistributedcomputingenvironment.Experimentalresultstestifythatthealgorithmisecientandeective.Keyw

8、ordsnetwork;nodeimportance;resistivenetwork;powerdissipation1ÉËÊÌXÍXÎXÏXÐXÑXÒXÓTÔVÕXÖX×XØXÙXÚXÛXÜXÝXÞ[13].ÔVÕTáÌXÍXäTÔVÕXØXåXæXçXèXéXêXëXÎXÏßVà,âXãØXìXí?áÌXÍXØX÷XøXùXäXúXÚTÔVÕXûXüTýVþXÿ
ùTÔVÕTáXÓTÔîXïXðXñXîXòXóXôXõXöX,âXã?

ÕTá


XØ

?XÓ





XØXë
?Ó



9、
rØrÝrÞØ
XÏ

Xã

.
ÓXÛ

Ø
!Xë

"
#
$XÌXÍXÎrÏXÑXÒ
%
&XØ


'XÓ
(XíXå
)XÐ
"XÐ
*XÌXÍrØXÎXÏrç[1]XXð.,+,-Órå)rÌrÍrØ./0,ÌrÍ/rÎrÏÓrØ4rÍÙrÚ5rÌrÍrå)6rÚ7ÔsÕ812,32,2ÌXÍ
9
:
;
<6
=
..á@
AXØ
B
C:
D
E
F
G
*XÌXÍXØXÎXÏXÐ>
?[4{8](betweennesscentrality),HÌXÍ

10、XØ

I
J
K
/
0ÌXÍ
/XÎXÏÌXÍ
B
CXØ
L
M
N
O
P
Q
@