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Google Scholar is a freely accessible web search engine that indexes the full text or metadata of scholarly literature across an array of publishing formats and disciplines. . Released in beta in November 2004, the Google Scholar index includes peer-reviewed online academic journals and books, conference papers, theses and dissertations, preprints, abstracts, technical reports, and other ...
The main academic full-text databases are open archives or link-resolution services, although others operate under different models such as mirroring or hybrid publishers. . Such services typically provide access to full text and full-text search, but also metadata about items for which no full text is availa
Active. Google Books (previously known as Google Book Search, Google Print, and by its code-name Project Ocean) [1] is a service from Google that searches the full text of books and magazines that Google has scanned, converted to text using optical character recognition (OCR), and stored in its digital database. [2]
Full-text search. In text retrieval, full-text search refers to techniques for searching a single computer -stored document or a collection in a full-text database. Full-text search is distinguished from searches based on metadata or on parts of the original texts represented in databases (such as titles, abstracts, selected sections, or ...
Open access articles can be found with a web search, using any general search engine or those specialized for the scholarly and scientific literature, such as Google Scholar, OAIster, base-search.net, [263] and CORE [264] Many open-access repositories offer a programmable interface to query their content.
Academic Search Complete was first published in 2007 as Academic Premier. It is an indexing and abstracting service, accessible via the World Wide Web.Coverage includes more than 8,500 full-text periodicals, including more than 7,300 peer-reviewed journals.
Potential readership of Open Access material is far greater than that for publications where the full-text is restricted to subscribers. Details of contents can be read by specialised web harvesters. Details of contents also appear in normal search engines like Google, Google Scholar, Yahoo, etc.
The Internet Archive Scholar is a scholarly search engine created by the Internet Archive in 2020. As of February 2024, it contained over 35 million research articles with full text access. The materials available come from three different forms: content identified by the Wayback Machine, by digitized print material and sources such as uploads ...