Search engines

What do scientific search engines offer me?

With the help of scientific search engines it is possible to search on 'the net' for scientifically relevant information and documents. In part, deep web content can also be found via them.

Use ...

  • multidisciplinary search engines to search for literature references or open access full texts from all subject areas.
  • special search engines to search for special information or for literature references or open access full texts from a specific subject area.

Multidisciplinary

BASE (Bielefeld Academic Search Engine)
  • Link: BASE
  • Provider: Library of Bielefeld University
  • Description (DBIS): BASE (Bielefeld Academic Search Engine) is a search engine of the Bielefeld University Library for freely accessible scientific documents whose metadata is provided by document servers worldwide. BASE provides access to over 90 million documents, e.g. University publications, preprints, journal articles, i. a. of more than 5,000 document servers (state: 12/2016).
Dandelon
  • Link: Dandelon
  • Provider: AGI-Information Management Consultants
  • Description (DBIS): Dandelon is a search portal for scientific literature supported by National, State and University Libraries, the GBV Library Service Center, national and international documentation centers, publishers, the SWETS magazine agency, the book trade and - as the initiator of AGI Information Management Consultants. Searchable are books and essays, mainly current titles and from all scientific disciplines (state: 05/2018).
Google Scholar
  • Link: Google Scholar
  • Provider: Google Inc.
  • Description (DBIS): Google Scholar enables the special search for scientific literature, including book titles, journal articles and technical papers (state: 05/2018).
OAIster
  • Link: OAIster
  • Provider: Online Computer Library Center (OCLC), initially Library of Michigan University
  • Description (DBIS): OAIster, originally an open access project of the University of Michigan Library and now incorporated by OCLC, provides access to more than 25 million freely available academic online publications from more than 1,100 institutions. The individual database entries are enriched with informative metadata. The OAIster database integrated in OCLC's WorldCat, but also separately searchable, contains the bibliographic records and links directly to these resources. These are collected via the WorldCat Digital Collection Gateway from globally distributed document servers, which have interfaces that support the Open Archives Initiative Metadata Harvesting Protocol (OAI-PMH), and are continuously supplemented and updated (state: 05/2018).
ScienceGate
  • Link: ScienceGate
  • Provider: Point Software AG
  • Description (DBIS): ScienceGate provides access to scientific open-access publications from more than 4,000 OAI repositories. These are often directly accessible as a PDF file. The index of the search engine comprises over 120 million data sets and thus about 1.8 million articles, which are categorized according to scientific disciplines (state: 1/2017). 
ScienceResearch
  • Link: ScienceResearch
  • Provider: Deep Web Technologies
  • Description (DBIS): web portal and search engine with access to numerous scientific journals and databases ("Deep Web"). Provides bibliographic information, in part full texts (open access sources) (state: 05/2018).
Semantic Scholar
  • Link: Semantic Scholar
  • Provider: The Allen Institute for Artificial Intelligence
  • Infotext (DBIS): Semantic Scholar is a free scientific search engine that processes its search results using artificial intelligence. In addition to the traditional methods of citation analysis, the service uses semantic analysis to try to indicate the relevance of the cited work and its weight for further research. In this way, Semantic Scholar distinguishes whether the methods, background or results of the cited literature were used for the respective work. (Status: 12/2022).
WordWideScience
  • Link: WordWideScience
  • Provider: U. S. Department of Energy, Office of Scientific and Technical Information
  • Description (DBIS):  The search engine WorldWideScience allows the simultaneous search in various national and international databases. Currently, about 100 databases and portals from over 70 countries are searchable  (Stand: 12/2015).

Specific

Biznar: Economics
  • Link: BizNar
  • Provider: Deep Web Technologies
  • Subject: economics
  • Description (DBIS): The search engine BizNar enables simultaneous deep web research in the following sources: business news, government agencies, institutions, companies and specialist information providers. The results are clustered and can be visualized or ordered by topic (state: 05/2018).
CiteSeerX: Computer Science & Technology
  • Link: CiteSeerX
  • Provider: University of Pennsylvania
  • Subjects: computer science, information science, mathematics, linguistics, physics, technology in general
  • Description (DBIS): CiteSeerX is a search engine and citation database for freely accessible scientific information on computer and information science. Many of the publications can be downloaded as free PDF documents. The special feature of CiteSeerX is that the referenced literature is linked. CiteSeerX was developed at the NEC Research Institute (Princeton, USA) and is now operated by Pennsylvania State University. The tasks of CiteSeerX include: localization of scientific articles, full text indexing (HTML, PDF, Postscript), indexing of bibliographical references (Science Citation Index), finding duplicates and analyzing the citation and linking of scientific articles (state: 05/2018).
Wolfram|Alpha: Facts, formulas, algorithms
  • Link: Wolfram|Alpha
  • Provider: Wolfram Alpha LCC
  • Description: WolframAlpha is a semantic search engine for finding data, facts, formulas and algorithms.

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