Google Scholar (GS) is a freely-accessible Web search engine that indexes the full text of scholarly literature across an array of publishing formats and disciplines. Released in beta in November 2004, the GS index includes most peer-reviewed online journals of the world's largest scientific publishers. It is similar in function to the freely available Scirus from Elsevier, CiteSeer, and getCITED. It is also similar to the subscription-based tools, Elsevier's Scopus and Thomson ISI's Web of Science. GS nonetheless claims to cover more websites, journal sources and languages. Its advertising slogan - "Stand on the shoulders of giants" (paraphrasing a quotation from Isaac Newton) - is a nod to the scholars who have contributed to their fields over the centuries, providing the foundation for new intellectual achievements.
In terms of features, GS allows users to search for digital or physical copies of articles, whether they be online or in libraries[1].
Using its "group of" feature, it shows the various available links to the journal article. In the 2005 version, this feature provided a link both to subscription-access versions of the article and to free full text versions of articles; for most of 2006, it provided links to only the official versions. As of December 2006, it provides access to both published versions and on major open access repositories, but does still not cover individual university pages; access to such self-archived non-subscription versions is now provided by a link to Google, where one can find such open access articles.)
Through its "cited by" feature, GS provides access to citations of articles that have cited the article being viewed (see [3]). It is this feature in particular that provides the citation indexing previously only found in Scopus and Web of Science. Through its "Related articles" feature, GS presents a list of closely related articles, ranked primarily by how similar these articles are to the original result, but also taking into account the relevance of each paperGoogle Scholar (GS) is a freely-accessible Web search engine that indexes the full text of scholarly literature across an array of publishing formats and disciplines. Released in beta in November 2004, the GS index includes most peer-reviewed online journals of the world's largest scientific publishers. It is similar in function to the freely available Scirus from Elsevier, CiteSeer, and getCITED. It is also similar to the subscription-based tools, Elsevier's Scopus and Thomson ISI's Web of Science. GS nonetheless claims to cover more websites, journal sources and languages. Its advertising slogan - "Stand on the shoulders of giants" (paraphrasing a quotation from Isaac Newton) - is a nod to the scholars who have contributed to their fields over the centuries, providing the foundation for new intellectual achievements.
In terms of features, GS allows users to search for digital or physical copies of articles, whether they be online or in libraries[1].
Using its "group of" feature, it shows the various available links to the journal article. In the 2005 version, this feature provided a link both to subscription-access versions of the article and to free full text versions of articles; for most of 2006, it provided links to only the official versions. As of December 2006, it provides access to both published versions and on major open access repositories, but does still not cover individual university pages; access to such self-archived non-subscription versions is now provided by a link to Google, where one can find such open access articles.)
Through its "cited by" feature, GS provides access to citations of articles that have cited the article being viewed (see [3]). It is this feature in particular that provides the citation indexing previously only found in Scopus and Web of Science. Through its "Related articles" feature, GS presents a list of closely related articles, ranked primarily by how similar these articles are to the original result, but also taking into account the relevance of each paper .http://en.wikipedia.org/wiki/Google_Scholar
No comments:
Post a Comment