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Klein, H.: Web Content Mining (2004) 0.05
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Abstract

Web Mining - ein Schlagwort, das mit der Verbreitung des Internets immer öfter zu lesen und zu hören ist. Die gegenwärtige Forschung beschäftigt sich aber eher mit dem Nutzungsverhalten der Internetnutzer, und ein Blick in Tagungsprogramme einschlägiger Konferenzen (z.B. GOR - German Online Research) zeigt, dass die Analyse der Inhalte kaum Thema ist. Auf der GOR wurden 1999 zwei Vorträge zu diesem Thema gehalten, auf der Folgekonferenz 2001 kein einziger. Web Mining ist der Oberbegriff für zwei Typen von Web Mining: Web Usage Mining und Web Content Mining. Unter Web Usage Mining versteht man das Analysieren von Daten, wie sie bei der Nutzung des WWW anfallen und von den Servern protokolliert wenden. Man kann ermitteln, welche Seiten wie oft aufgerufen wurden, wie lange auf den Seiten verweilt wurde und vieles andere mehr. Beim Web Content Mining wird der Inhalt der Webseiten untersucht, der nicht nur Text, sondern auf Bilder, Video- und Audioinhalte enthalten kann. Die Software für die Analyse von Webseiten ist in den Grundzügen vorhanden, doch müssen die meisten Webseiten für die entsprechende Analysesoftware erst aufbereitet werden. Zuerst müssen die relevanten Websites ermittelt werden, die die gesuchten Inhalte enthalten. Das geschieht meist mit Suchmaschinen, von denen es mittlerweile Hunderte gibt. Allerdings kann man nicht davon ausgehen, dass die Suchmaschinen alle existierende Webseiten erfassen. Das ist unmöglich, denn durch das schnelle Wachstum des Internets kommen täglich Tausende von Webseiten hinzu, und bereits bestehende ändern sich der werden gelöscht. Oft weiß man auch nicht, wie die Suchmaschinen arbeiten, denn das gehört zu den Geschäftsgeheimnissen der Betreiber. Man muss also davon ausgehen, dass die Suchmaschinen nicht alle relevanten Websites finden (können). Der nächste Schritt ist das Herunterladen der Websites, dafür gibt es Software, die unter den Bezeichnungen OfflineReader oder Webspider zu finden ist. Das Ziel dieser Programme ist, die Website in einer Form herunterzuladen, die es erlaubt, die Website offline zu betrachten. Die Struktur der Website wird in der Regel beibehalten. Wer die Inhalte einer Website analysieren will, muss also alle Dateien mit seiner Analysesoftware verarbeiten können. Software für Inhaltsanalyse geht davon aus, dass nur Textinformationen in einer einzigen Datei verarbeitet werden. QDA Software (qualitative data analysis) verarbeitet dagegen auch Audiound Videoinhalte sowie internetspezifische Kommunikation wie z.B. Chats.

Theme

Data Mining

Pernik, V.; Schlögl, C.: Möglichkeiten und Grenzen von Web Structure Mining am Beispiel von informationswissenschaftlichen Hochschulinstituten im deutschsprachigen Raum (2006) 0.04

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Ulrich, P.S.: Collaborative Digital Reference Service : Weltweites Projekt (2001) 0.03

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Date: 20. 4.2002 17:30:22

Herrmann, C.: Partikulare Konkretion universal zugänglicher Information : Beobachtungen zur Konzeptionierung fachlicher Internet-Seiten am Beispiel der Theologie (2000) 0.02

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Date: 22. 1.2000 19:29:08

Gersmann, G.; Dörr, M.: ¬Der Server Frühe Neuzeit als Baustein für eine Virtuelle Fachbibliothek Geschichte (2001) 0.02

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Date: 22. 3.2001 11:57:52

Schininà, A.: Literatur im Internet (2001) 0.02

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Source: Online Mitteilungen. 2001, Nr.70, S.22-36 [=Mitteilungen VÖB 54(2001) H.2/3]

Dirks, H.: Lernen im Internet oder mit Gedrucktem? : Eine Untersuchung zeigt: Fernunterrichts-Teilnehmer wollen beides! (2002) 0.02

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Date: 11. 8.2002 15:05:22

Zschunke, P.: Gefährliche Liebesgrüße : Neues Computervirus verbreitet sich rasend schnell - Betriebe fahren Systeme herunter (2000) 0.02

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Date: 3. 5.1997 8:44:22

Somm, F.; Klein, P.: Freispruch für Somm (2000) 0.02

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Date: 29.12.1999 17:22:13

Pipp, E.: E-Psyche - "die umfassendste, kostengünstigste und aktuellste Datenbank im Fachbereich Psychologie"??? (2001) 0.02

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Date: 20. 1.2002 18:22:30

Beck, K.: Zur Bildungsfunktion computervermittelter Kommunikation (2001) 0.02

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Date: 3.10.2001 15:40:22

Bayer, M.: Keine E-Mail soll mehr unbemerkt am FBI vorbeikommen : Die US-Bundespolizei will Abhör-Computer direkt bei den Internet-Anbietern aufbauen - Datenschützer fürchten Missbrauch (2000) 0.02

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Date: 17. 7.1996 9:33:22

Flemming, A.: Kurzbericht des Vorstandes des Deutschen Bibliotheksverbandes 1998 bis 2001 (2001) 0.02

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Date: 11. 6.2004 13:22:23

Müller, M.: Dem stillen Örtchen kann das Internet nicht das Wasser reichen : Fünf Gründe, weshalb das weltweite Netz nicht hält, was sich seine Anhänger von ihm ökonomisch versprechen (2000) 0.02

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Date: 17. 7.1996 9:33:22

Brahms, E.: Aufbau und Förderung Virtueller Fachbibliotheken durch die Deutsche Forschungsgemeinschaft : Lichtbildvortrag (2001) 0.02

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Date: 20. 1.2002 19:22:10

Eggeling, T.; Kroschel, A.: Alles finden im Web (2000) 0.02

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Date: 9. 7.2000 14:06:22

Pernsteiner, R.: Qualitätsinformationen im Internet mit Anbindung an Intranet (2000) 0.02

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Date: 22. 7.2000 16:37:12

Meyenburg, S.: ¬Der Aufbau Virtueller Fachbibliotheken in der Bundesrepublik Deutschland (2000) 0.02

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Date: 26. 8.2000 19:22:17

Miedtke, E.: Ileks@oeb : Content - Manpower - Vison (2001) 0.02

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Date: 5. 5.2001 9:22:47

Sauer, D.: Alles schneller finden (2001) 0.02

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Date: 11.11.2001 17:25:22

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