Jose Luis Ortega's Academic search engines : a quantitative outlook PDF

By Jose Luis Ortega

ISBN-10: 1780634722

ISBN-13: 9781780634722

ISBN-10: 1843347911

ISBN-13: 9781843347910

Academic se's: intends to run during the present landscape of the tutorial se's via a quantitative technique that analyses the reliability and consistence of those providers. the target is to explain the most features of those engines, to focus on their merits and downsides, and to debate the results of those new items sooner or later of medical verbal exchange and their impression at the examine size and review. in brief, educational se's offers a precis view of the recent demanding situations that the internet set to the clinical task during the so much novel and cutting edge looking out companies on hand on the net.

  • This is the 1st method of examine se's completely addressed to the study neighborhood in an integrative instruction manual. the newness, expectation and usability of a lot of those companies justify their analysis.
  • This e-book isn't purely an outline of the internet functionalities of those prone; it's a medical evaluation of the main notable features of every platform, discussing their value to the scholarly communique and study evaluation.
  • This e-book introduces an unique technique in line with a quantitative research of the coated information during the vast use of crawlers and harvesters which enable getting in intensity into how those engines are operating. Beside of this, an in depth descriptive assessment in their functionalities and a serious dialogue approximately their use for clinical group is displayed.

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6 per cent) and Physics (61 per cent). These differences lead me to suggest that the social sciences produce more web pages than scientific documents, while classical disciplines are almost exclusively focused on the production of research documents. 3 shows the distribution of documents by publication year. 5 per cent of all documents corresponded to the most recent lustrum (2009–13). One possible explanation for this high proportion of recent documents could be that most of the Scirus documents were web pages which, often, are updated constantly.

However, the instability of the project – moving from different organizations and from person to person – and the development of different technical versions that could enable the continuity of the search engine have caused a certain lassitude of service and a lack of energy both in the reliability of the data and the consistency of parsed documents. 3 million documents – indicates that CiteSeerx has lost some of its force as a competitor in the academic search engine market. This fact was evidenced by Stribling et al.

AlchemyAPI and OpenCalais are used to extract these entities. 2 per cent). The results page shows the acknowledgements that correspond to the queried entity. These are sorted by citations and present the document title, the acknowledgement text and the entities that were indexed from each document. It is interesting to view the timeline option because this shows a longitudinal graph where the user can see the number of times that a person or organization is mentioned in acknowledgements each year.

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Academic search engines : a quantitative outlook by Jose Luis Ortega

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