Разъясненный PageRank
PageRank, . . PageRank, . , Mini-Rank. , Mini-Rank PageRank .
Mini-Rank, . "PageRank Explained", Mini-Rank, .
PageRank?
PageRank - , "" Google. , "". , , B. , PageRank - . PageRank . PageRank , Google.
PageRank PR.
:
Google . Free For All (FFA) , .. , . , . Google , , . , - . , . PR=0, , "", Google. .
PageRank?
PR . , .
PR(A) = (1-d) + d(PR(t1)/C(t1) + ... + PR(tn)/C(tn))
PageRank. , . , Google , . PageRank.
, :
t1-tn - , A
C - ,
d - , 0.85
-
PageRank = 0.15 + 0.85 * ( PageRank , )
"" PageRank , .
, . ( 0,85) .
, c PR3 5 , PR7 100 . , PageRank , . , PR1 PR10() . .
Google , , , . , , PageRank, PageRank, , . , PR8, , , PR4 .
Google, , PageRank . FFA .
, - PR . .. PageRank. , , . , PageRank.
PageRank.
, PageRank , ( )
PageRank. , , .
, 2 : B, . :
PageRank A
PageRank. . , PageRank . , PageRank .
PageRank B
PageRank, ! PageRank , .
" 22" ( ). PageRank , PageRank .
PageRank . PageRank. 50 .
, . , Google. PageRank , .
:
PageRank, PageRank . ( + PageRank) PageRank . :
1. ,
PR(A) = (1-d) + d(......) PR(A) = PR(A) + (1-d) + d(......)
.
2. , PageRank. PageRank , . , .
, , , . . PageRank .
: PageRank, .
PageRank *1. . PageRank , PageRank . . , .
: PageRank .
, PageRank. , , , . , Google , .
: PageRank.
- , () PageRank. PageRank - () .
: , , " " . . Google . .
PageRank ?
, , PageRank . , , Google, . Google, .
, .. , PageRank, , . : . , , Google, . , . , . |
![]() |
3- ( A,B C) . PageRank 1, 1 99. PageRank, . 1 , PageRank , 0 . .
PageRank PageRank . 3 , PageRank 3.
, . , , PageRank 0.15. PageRank 0.45, 3. PageRank. 1
PR1 . A B . :
A = 0.15 B = 1 C = 0.15
|
![]() |
A "" B , , PageRank B . B, " 22". , :
A = 0.15 B = 0.2775 C = 0.15
- B PR, , . . PageRank 0.5775 - , .
: , - Google , . 2
. . PR1 . :
A = 1 B = 1 C = 1
|
![]() |
. , , PR1. . : A B, B C and C D. .
, PageRank, . , PageRank. , , . , , , . 3 , PageRank - A. PageRank. 3
. A B C. B C A. PR1 , 1 :
A = 1.85 B = 0.575 C = 0.575
100 :
A = 1.459459 B = 0.7702703 C = 0.7702703
|
![]() |
PageRank 3 (), . , , A PageRank 2 . , B C PageRank A. PageRank , . 4
, C B. PR1. 1 :
A = 1.425 B = 1 C = 0.575
|
![]() |
, A PageRank, B C . C "" A B. A . A , B . 100 :
A = 1.298245 B = 0.9999999 C = 0.7017543
" ", C PageRank , A B, A, A C A-->C. PageRank, - , , . , , , PageRank. , ( , , ..), PageRank. , . 5:
PageRank , 1 . , PageRank . , .
3 3 [] . , . 0.15 , , . . , A [].
, PageRank , 3 ( ) 6. , PageRank A .
. - . Google, - PageRank PageRank A. , , . A , , , A []. , , A, .
, . , , . , . , , .
, , PageRank . , PageRank , Google , , Google .
PageRank , ?
-, , , Google PageRank. Google, PageRank 1.0 . PageRank * 1, PageRank, .
Google 1 10. ( 0, PageRank). Google, PageRank 10 - . , PageRank , .
10 , - Google . , , ( ) , , .
, 10 10, , . 100 , , 1000 , 10,000 . , .
, 10. , 5 6 . , .
, , PageRank , PageRank, . , . , PageRank , , . Google - (). "Google Dance". Google Dance , . , , , Google Dance.
- PageRank , PageRank . PR5 PR5 , PR5 PR6 - ( )
, www.domain.com/, domain.com/, www.domain.com/index.html domain.com/index.html url. , , url PageRank. url, . url PageRank, url.
, , www.domain.com/ ? . index.html, index.htm, index.php, default.html, .. . index.html , , , . 2 url PageRank . url , PageRank url.
:
. , url "www.". Google, , PR5. "www." . PR3, . , PageRank . url PageRank . .
www.domain.com/index.html. url; products.html details.html. url www.domain.com/products.html www.domain.com/details.html. , url , "www." - domain.com/anotherpage.html. index.html, domain.com/index.html. , , . .. . , . url , .. domain.com/. , PageRank , "" .
. . - PageRank. PageRank . , PageRank , PageRank - , PageRank. , , . , .
, PageRank , PageRank. - , ( ) , , .
Google
Google, PageRank , . , . Google PageRank Google PageRank. PageRank , PageRank , - . PageRank .
, , PageRank. , Google, .
, Google PageRank 1 . , 4, 3, . ( ) . , - , ( ).
ODP Yahoo!
Google ODP (Open Directory Project, aka DMOZ) Yahoo! PageRank . - , - . ODP , , . , .
Все статьи
|