A free database of university web links: data collection issues

This paper describes a free set of databases of the link structures of the university web sites from a selection of countries, as created by a specialist information science web crawler. With the increasing interest in web links by information and computer scientists this is an attempt to make avail...

Descripción completa

Detalles Bibliográficos
Autor: Thelwall, Mike
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2002
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/174381
Acceso en línea:http://hdl.handle.net/10261/174381
Access Level:acceso abierto
Palabra clave:Web links
Web Impact Factor
Search engines
Web crawler
Descripción
Sumario:This paper describes a free set of databases of the link structures of the university web sites from a selection of countries, as created by a specialist information science web crawler. With the increasing interest in web links by information and computer scientists this is an attempt to make available raw data for research that is not reliant upon the opaque techniques of commercial search engines. Basic tools for querying are also provided. The key issues concerning running an accurate web crawler are also discussed. Access is also given to the normally hidden crawler stop list with the aim of making the crawl process more transparent. The necessity of having such a list is discussed, with the conclusion that fully automatic crawling is not socially or empirically desirable because of the existence of database-generated areas of the web and the proliferation of the phenomenon of mirroring