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MacLeod, R.: Promoting a subject gateway : a case study from EEVL (Edinburgh Engineering Virtual Library) (2000)
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- Date
- 22. 6.2002 19:40:22
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Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000)
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- 25. 8.2005 17:42:22
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Bawden, D.: Google and the universe of knowledge (2008)
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- 7. 6.2008 16:22:20
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Watters, C.; Amoudi, A.: Geosearcher : location-based ranking of search engine results (2003)
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- Abstract
- Waters and Amoudi describe GeoSearcher, a prototype ranking program that arranges search engine results along a geo-spatial dimension without the provision of geo-spatial meta-tags or the use of geo-spatial feature extraction. GeoSearcher uses URL analysis, IptoLL, Whois, and the Getty Thesaurus of Geographic Names to determine site location. It accepts the first 200 sites returned by a search engine, identifies the coordinates, calculates their distance from a reference point and ranks in ascending order by this value. For any retrieved site the system checks if it has already been located in the current session, then sends the domain name to Whois to generate a return of a two letter country code and an area code. With no success the name is stripped one level and resent. If this fails the top level domain is tested for being a country code. Any remaining unmatched names go to IptoLL. Distance is calculated using the center point of the geographic area and a provided reference location. A test run on a set of 100 URLs from a search was successful in locating 90 sites. Eighty three pages could be manually found and 68 had sufficient information to verify location determination. Of these 65 ( 95%) had been assigned reasonably correct geographic locations. A random set of URLs used instead of a search result, yielded 80% success.
-
Price, A.: Five new Danish subject gateways under development (2000)
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- Date
- 22. 6.2002 19:41:31
-
Lee, F.R.: ¬The library, unbound and everywhere (2004)
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- Content
- "There may be some false consciousnesses about this breakthrough, that all learning will be at our fingertips," Mr. Darnton said of the plans to enhance Google's database. He saw room for both Google and real-world research. Libraries have already been changed by the Internet, said Paul LeClerc, president and chief executive of the New York Public Library: But libraries will still be needed to coliect and store information, he said. "TV did replace radio," Mr. LeCIerc said. "Videos and DVD's did not replace people going to the movies. It's still easier to read a book by hand than online." "The New-York Public Library Web site gets three-fourths of a billion hits a year from 200 different countries and territories, and that's with no marketing or advertising," he said. "That's the context in which this new element has to be placed." "We had 13 million reader visits last year," he continued. "We're serving a multiplicity of audiences - we serve people physically and virtually. It's an enormous contribution to human intellectual development." Many university leaders realize that for most people, information does not exist unless it is online, said Paul Courant, provost and executive vice president for academic affairs at the University of Michigan. Mr. Courant envisioned that in 20 years archives would be shared by institutions. While the world needs "tens of thousands of copies of 'To the Lighthouse,"' he said, "we don't need to have a zillion copies of some arcane monograph written by a sociologist in 1951."
-
Zschunke, P.: Richtig googeln : Ein neues Buch hilft, alle Möglichkeiten der populären Suchmaschine zu nutzen (2003)
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- Content
- "Fünf Jahre nach seiner Gründung ist Google zum Herz des weltweiten Computernetzes geworden. Mit seiner Konzentration aufs Wesentliche hat die Suchmaschine alle anderen Anbieter weit zurück gelassen. Aber Google kann viel mehr, als im Web nach Texten und Bildern zu suchen. Gesammelt und aufbereitet werden auch Beiträge in Diskussionsforen (Newsgroups), aktuelle Nachrichten und andere im Netz verfügbare Informationen. Wer sich beim "Googeln" darauf beschränkt, ein einziges Wort in das Suchformular einzutippen und dann die ersten von oft mehreren hunderttausend Treffern anzuschauen, nutzt nur einen winzigen Bruchteil der Möglichkeiten. Wie man Google bis zum letzten ausreizt, haben Tara Calishain und Rael Dornfest in einem bislang nur auf Englisch veröffentlichten Buch dargestellt (Tara Calishain/Rael Dornfest: Google Hacks", www.oreilly.de, 28 Euro. Die wichtigsten Praxistipps kosten als Google Pocket Guide 12 Euro). - Suchen mit bis zu zehn Wörtern - Ihre "100 Google Hacks" beginnen mit Google-Strategien wie der Kombination mehrerer Suchbegriffe und enden mit der Aufforderung zur eigenen Nutzung der Google API ("Application Programming Interface"). Diese Schnittstelle kann zur Entwicklung von eigenen Programmen eingesetzt werden,,die auf die Google-Datenbank mit ihren mehr als drei Milliarden Einträgen zugreifen. Ein bewussteres Suchen im Internet beginnt mit der Kombination mehrerer Suchbegriffe - bis zu zehn Wörter können in das Formularfeld eingetippt werden, welche Google mit dem lo-gischen Ausdruck "und" verknüpft. Diese Standardvorgabe kann mit einem dazwischen eingefügten "or" zu einer Oder-Verknüpfung geändert werden. Soll ein bestimmter Begriff nicht auftauchen, wird ein Minuszeichen davor gesetzt. Auf diese Weise können bei einer Suche etwa alle Treffer ausgefiltert werden, die vom Online-Buchhändler Amazon kommen. Weiter gehende Syntax-Anweisungen helfen ebenfalls dabei, die Suche gezielt einzugrenzen: Die vorangestellte Anweisung "intitle:" etwa (ohne Anführungszeichen einzugeben) beschränkt die Suche auf all diejenigen Web-Seiten, die den direkt danach folgenden Begriff in ihrem Titel aufführen. Die Computer von Google bewältigen täglich mehr als 200 Millionen Anfragen. Die Antworten kommen aus einer Datenbank, die mehr als drei Milliarden Einträge enthält und regelmäßig aktualisiert wird. Dazu Werden SoftwareRoboter eingesetzt, so genannte "Search-Bots", die sich die Hyperlinks auf Web-Seiten entlang hangeln und für jedes Web-Dokument einen Index zur Volltextsuche anlegen. Die Einnahmen des 1998 von Larry Page und Sergey Brin gegründeten Unternehmens stammen zumeist von Internet-Portalen, welche die GoogleSuchtechnik für ihre eigenen Dienste übernehmen. Eine zwei Einnahmequelle ist die Werbung von Unternehmen, die für eine optisch hervorgehobene Platzierung in den GoogleTrefferlisten zahlen. Das Unternehmen mit Sitz im kalifornischen Mountain View beschäftigt rund 800 Mitarbeiter. Der Name Google leitet sich ab von dem Kunstwort "Googol", mit dem der amerikanische Mathematiker Edward Kasner die unvorstellbar große Zahl 10 hoch 100 (eine 1 mit hundert Nullen) bezeichnet hat. Kommerzielle Internet-Anbieter sind sehr, daran interessiert, auf den vordersten Plätzen einer Google-Trefferliste zu erscheinen.
-
Gardner, T.; Iannella, R.: Architecture and software solutions (2000)
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- Date
- 22. 6.2002 19:38:24
-
Peereboom, M.: DutchESS : Dutch Electronic Subject Service - a Dutch national collaborative effort (2000)
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- 22. 6.2002 19:39:23
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Campbell, D.: Australian subject gateways : political and strategic issues (2000)
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- Date
- 22. 6.2002 19:41:16
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Dempsey, L.: ¬The subject gateway : experiences and issues based on the emergence of the Resource Discovery Network (2000)
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- Date
- 22. 6.2002 19:36:13
-
Sandler, M.: Disruptive beneficence : the Google Print program and the future of libraries (2005)
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- Pages
- S.5-22
-
Heery, R.: Information gateways : collaboration and content (2000)
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- Date
- 22. 6.2002 19:38:54
-
Price, A.: NOVAGate : a Nordic gateway to electronic resources in the forestry, veterinary and agricultural sciences (2000)
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- Date
- 22. 6.2002 19:41:00
-
Koch, T.: Quality-controlled subject gateways : definitions, typologies, empirical overview (2000)
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- Date
- 22. 6.2002 19:37:55
-
Rose, D.E.: Reconciling information-seeking behavior with search user interfaces for the Web (2006)
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- Date
- 22. 7.2006 17:58:06
-
Williamson, N.J.: Knowledge structures and the Internet : progress and prospects (2006)
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- Date
- 27.12.2008 15:56:22
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Fischer, T.; Neuroth, H.: SSG-FI - special subject gateways to high quality Internet resources for scientific users (2000)
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- Date
- 22. 6.2002 19:40:42
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Large, A.; Beheshti, J.; Rahman, T.: Design criteria for children's Web portals : the users speak out (2002)
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- Date
- 2. 6.2005 10:34:22
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Furner, J.: ¬A unifying model of document relatedness for hybrid search engines (2003)
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- Date
- 11. 9.2004 17:32:22
