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  2. List of academic databases and search engines - Wikipedia

    en.wikipedia.org/wiki/List_of_academic_databases...

    Users need to account for qualities and limitations of databases and search engines, especially those searching systematically for records such as in systematic reviews or meta-analyses. [2] As the distinction between a database and a search engine is unclear for these complex document retrieval systems , see:

  3. Skim (software) - Wikipedia

    en.wikipedia.org/wiki/Skim_(software)

    Skim is an open-source PDF reader. It is notably the first free software PDF reader for macOS. [2] It is written in Objective-C, and uses Cocoa APIs. It is released under a BSD license. It is also cited as being able to help annotate and read scientific papers. [3]

  4. Contextual searching - Wikipedia

    en.wikipedia.org/wiki/Contextual_searching

    Contextual search is a form of optimizing web-based search results based on context provided by the user and the computer being used to enter the query. [1] Contextual search services differ from current search engines based on traditional information retrieval that return lists of documents based on their relevance to the query.

  5. AOL Search FAQs - AOL Help

    help.aol.com/articles/aol-search-faqs

    We offer Search History as a feature on AOL Search providing you relevant search experience, such as saved searches and targeted special offers based on your earlier searches. When Search History is enabled, personal information about the searches you perform on the AOL service and the actions you take with the results of those searches may be ...

  6. Comparison of e-book formats - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_e-book_formats

    This limitation was addressed in 2001 with the release of PDF Reference 1.5 and Tagged PDF, [29] but third-party support for this feature was limited until the release of PDF/UA in 2012. Many products support creating and reading PDF files, such as Adobe Acrobat, PDFCreator and LibreOffice, and several programming libraries such as iText and FOP.

  7. List of search engines - Wikipedia

    en.wikipedia.org/wiki/List_of_search_engines

    Desktop search product with Outlook plugin and limited support for other formats via IFilters, uses Lucene search engine. Proprietary (14-day trial) [7] Nepomuk: Linux: Open-source semantic desktop search tool for Linux. Has been replaced by Baloo in KDE Applications from release 4.13 onward. License SA 3.0 and the GNU Free Documentation ...