Webometrics

The webometrics (English " webometrics ") is a line of research that examines by means of measurements the World Wide Web. Webometrische research has been around since the mid-1990s. It examines, among other things, the number and website links, the resulting structures and the behavior of Internet users.

In the extraction of information from the World Wide Web, webometrics methods of data mining and graph theory served. For data collection, most search engines or Web crawlers can be used. Are evaluated, among other things:

The aim is on the one hand the acquisition of knowledge about the structure and development of the World Wide Web or from some areas and on the other a better finding information on the Web, by operation of information retrieval with measurements.

Example obtained by webometrics information is information about the growth and the size of the World Wide Web, as well as procedures that can be observed relationships between different sides, or which would allow to determine the popularity of a page ( for example, see the PageRank algorithm the Google search engine ).

The webometrics is closely related to the informetrics, bibliometrics, scientometrics, and the Web mining. In the investigation of web pages and hyperlinks, there are parallels to the study of journal articles and citations in bibliometrics. To establish this, the term was coined sitation for links of Ronald Rousseau. However, the Web also fundamental differences to other media. For example, a date of publication of a website is difficult to moor due to updates.

In contrast to webometrics the term referred Cybermetrie (English " cyber metrics " ), the quantitative analysis of all Internet services. It includes in addition to the World Wide Web, e- mail, newsgroups, etc. with a

Method

  • Cluster analysis
  • Path analysis, topic tracking

Statements and questions

  • Web Impact Factor (see also Impact Factor )
  • Partitioning into clusters of communities (hubs, portals ) and transverse links
  • Determination of Hubs and Authorities
  • Evaluation of search engines
  • Small - world phenomenon
  • Ranking method
  • Reasons for setting up links
  • How much information ( 2003) study of the size of the Internet in different areas

Scientist

After a based on 1178 articles from 10 journals of library and information science study by Olle Persson for the period 2000-2002, the following scientists were most frequently cited together in the field of webometrics:

Lennart Björneborn, Blaise Cronin, Leo Egghe, Peter Ingwersen, Ronald Rousseau, Alastair Smith, Mike Thelwall, Liwen Vaughan

All of them sit on the editorial board of the journal CyberMetrics, whose founder Isidro Aguillo is.

More: Judit Bar - Ilan, Hildrun Kretschmer

Data-Mining
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