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???????????

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... 2-2 2000 2001 2002 2003 2004 2005 ... Earthquack Eng ... – PowerPoint PPT presentation

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Title: ???????????


1
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  • ???? ???

2
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3
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4
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  • 1.1 ?????
  • ???????????????????,?????????
  • ???????????????????????????????
  • ???
  • 1.2 ??????
  • Web impact factor?Ingwersen???????????????
    199
  • 8???????????????????????Ingwersen ???
  • ??????????????????,????????????
  • ??????????????????????????????
  • a,??????????????????b,??????????
  • ???????WIF a/b? (????http//baike.baidu.com/view
    /26994.html?fromTaglist )

5
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  • 1.3 ????
  • ?????????????????????(??
  • ??????)???????????????(inboundlin
  • ks)??????,?????????
  • ????????,????????????????,
  • ?????????
  • ???????,??????????????????
  • (????http//www.hudong.com/wiki
    http//www.hudong.com/wiki )

6
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  • 1.4 ????
  • ?????????????????,??????
  • ??????????????????????????
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  • ?,??????????????????,?????
  • ??????????????????????????
  • ?????????????????,????????
  • ??????????

7
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  • 1.5 ????
  • ????(External Links),?????????????????
  • ????(Internal Links),?????????????
  • ??/????(Backward Links?Incoming/Inbound
    Links),?
  • ????????,??????????????
  • ????(Outgoing/Outbound Links)????????????????

8
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  • 1.6 ??????????
  • ???????????????????????????????,?????
  • ????????????????????????,?????????,????????
    ????????????????????

9
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??????????????????,??????????????????????????
????Searchenginewatch?????5??????????? Alta
Vista, Fast Search, Google, Hotbot(Inktomi????),No
rthlight?Northlight???????
4?????????
????
??
????
1999
www.alltheweb.com
Fast Search
1999
www.google.com
Google
1995
www.altavista.com
Alta Vista
1996
http//www.hotbot.com/
Inktomi
10
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  • Google ?Allt heweb ?Altavista
    ???????????????????, Google ?????????,Allt heweb
    ??,Altavista ???(???,??,??. 2006 )

2-1 ????????????? 2-1 ????????????? 2-1 ????????????? 2-1 ?????????????
???? ???? ??????/?? ??????
Fast Search 49 ?/? ?
Google 35 ?/? ??
Alta Vista 25 ?/? ?
Inktomi 38 ??/?? ?
??3???????,Fast Search???????,????????????
??,?????????????????,??????????
11
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2-2 ?????????????????? 2-2 ?????????????????? 2-2 ?????????????????? 2-2 ?????????????????? 2-2 ?????????????????? 2-2 ?????????????????? 2-2 ?????????????????? 2-2 ??????????????????
?? 2000 2001 2002 2003 2004 2005 ????
Alltheweb 1 1 3 3 4 12
AltaVista 1 1 1 1 4
Google 1 2 3
Hotbot 1 1
????? 1 2 1 5 3 8 20
??????,??Alltheweb??????60,??Autheweb????
??AltaVista????????????Google?????????????????,G
oogle??link host????????????????NorthernLight?
???????,??Alltheweb?Altavista??,?????Alltheweb???
??,???????(???2006)
12
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  • ???????,???????????????Alltheweb??,??A
    ltaVista???????? Alltheweb ???????,????,??????????
    ??Inktomi???????,????,???????,???????Google???????
    ???,??????????????

13
???????????
Alltheweb??? Alltheweb???
???? ???
???? domainchina.chemnet.com
???? linkchina.chemnet.com
???? china.chemnet.com -domainchina.chemnet.com
Google????? Google?????
???? ???
???? sitechina.chemnet.com
???? linkchina.chemnet.com
14
?. ??????
??????????
15
?. ??????
Pages???????? Links??????????
16
?. ??????
??china.chemnet.com ??????
17
?. ??????
?????????????16900??
18
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  • 3.1 ???
  • ?????Click-through Rate(???) ??Clicks
    Ratio
  • (???),????????????????????????
  • ?,?clicks/views,????????
  • 3.2 ????(traffic)
  • ????????,????????????????????
  • ???????????,???????????????????
  • ?????(????)????????????????????
  • ??????????????
  • (???? http//baike.baidu.com/view/754590.htm)

19
?.???????
  • ????????Click-through Rate(???)
    ??Clicks Ratio(???),?????????????????????????,?c
    licks/views,????????????????????????,?????????????
    ?
  • ???????????1000?,?????????????10?,??????????1
  • ???????????????????,??????????????,?page
    view,?????????????????????????????,????????,??????
    ???
  • (????http//baike.baidu.com/view/754590.htm)

20
?.????????
????????
21
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???Chemnet.com??????????12023????????1533??735?
????(Alexa???)
??Get Details????
22
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  • traffic rank?Alexa??3????????????,????????
    ,??????????????????IP???,?????IP?
    ??????????,?IP????????,????IP???1,?IP????????,page
    views???1. ?Alexa?traffic rank detail?,
    reach(ip???)?????/?????,???"Reach per million
    users 3 mos. Avg.0.5???3???,?100???????,?0.5???
    ?????????Page Views per user 3 mos.
    Avg.2.8???3???,?????????????2.8??
  • (???? http//www.edeng.org/post/131.html)

23
?.????????
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24
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25
????
  1. 2010, http//baike.baidu.com/view/26994.html?fromT
    aglist
  2. 2010, http//www.hudong.com/wiki
    http//www.hudong.com/wiki
  3. ???,??,??, 2006, ????
  4. ???, ?????????????????. ?????? 2006?(11)
  5. OU J P,SOONG T T,Recent advance in research on
    applications of passive energy dissipation
    systems. Earthquack Eng,1997,38(3)358-361.
  6. 2013, http//baike.baidu.com/view/754590.htm
  7. 2013, http//www.alltheweb.com/
  8. 2013, http//www.alexa.com/

26
  • ??????
  • ? ? ????
  • ????lvjs_at_lzb.ac.cn
  • ????2013?04?

27
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