List of academic databases and search engines From Wikipedia, the free encyclopedia This article contains a representative list of notable databases and search engines useful in an academic setting for finding and accessing articles in academic journals, institutional repositories, archives, or other collections of scientific and other articles. Databases and search engines differ substantially in terms of coverage and retrieval qualities.[1] 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: the general list of search engines for all-purpose search engines that can be used for academic purposesthe article about bibliographic databases for information about databases giving bibliographic information about finding books and journal articles. Operating services[edit] [edit] [edit]
Category:Online databases This is a list of databases made available on computer networks, usually the Internet. Some of these sites are freely available and some require payment or membership. Subcategories This category has the following 18 subcategories, out of 18 total. Pages in category "Online databases" The following 200 pages are in this category, out of 237 total. (previous 200) (next 200)(previous 200) (next 200) Search Engines To Find Similar and Alternative Si...
Database search engine There are several categories of search engine software: Web search or full-text search (example: Lucene), database or structured data search (example: Dieselpoint), and mixed or enterprise search (example: Google Search Appliance). The largest web search engines such as Google and Yahoo! utilize tens or hundreds of thousands of computers to process billions of web pages and return results for thousands of searches per second. High volume of queries and text processing requires the software to run in highly distributed environment with high degree of redundancy. Searching for text-based content in databases or other structured data formats (XML, CSV, etc.) presents some special challenges and opportunities which a number of specialized search engines resolve. Database search engines were initially (and still usually are) included with major database software products. See also[edit] External links[edit] Searching for Text Information in Databases
Ontology (information science) While the etymology is Greek, the oldest extant record of the word itself, the New Latin form ontologia, appeared in 1606 in the work Ogdoas Scholastica by Jacob Lorhard (Lorhardus) and in 1613 in the Lexicon philosophicum by Rudolf Göckel (Goclenius). The first occurrence in English of ontology as recorded by the OED (Oxford English Dictionary, online edition, 2008) came in Archeologia Philosophica Nova or New Principles of Philosophy by Gideon Harvey. Contemporary ontologies share many structural similarities, regardless of the language in which they are expressed. Most ontologies describe individuals (instances), classes (concepts), attributes and relations. Common components of ontologies include: Individuals Instances or objects (the basic or "ground level" objects) Aspects, properties, features, characteristics or parameters that objects (and classes) can have Ways in which classes and individuals can be related to one another Function terms Restrictions Rules Axioms
99 Resources to Research & Mine the Invisible Web College researchers often need more than Google and Wikipedia to get the job done. To find what you're looking for, it may be necessary to tap into the invisible web, the sites that don't get indexed by broad search engines. The following resources were designed to help you do just that, offering specialized search engines, directories, and more places to find the complex and obscure. Search Engines Whether you're looking for specific science research or business data, these search engines will point you in the right direction. Turbo10: On Turbo10, you'll be able to search more than 800 deep web search engines at a time. Databases Tap into these databases to access government information, business data, demographics, and beyond. GPOAccess: If you're looking for US government information, tap into this tool that searches multiple databases at a time. Catalogs If you're looking for something specific, but just don't know where to find it, these catalogs will offer some assistance. Directories
List of largest wikis Wikipedia's distinction shown on the table between a "conservative" and an "inclusive" number of pages originated in 2002 with the replacement of UseModWiki's spontaneous wiki modes with MediaWiki's embedded namespaces. For Wikimedia projects: The conservative number for the Wikipedia excludes redirects, discussion pages, image description pages, user profile pages, templates, help pages, portals, articles without links to other articles, and pages about Wikipedia. This may not be true for other wikis.The conservative number for Wikimedia Commons and Wiktionary excludes "talk" pages, pages about Wikipedia, minimal "stub" pages, redirects, and others that probably don't qualify as content pages. Lists of Wikipedias by various criteria: edit List of largest MediaWiki wikis[edit] Comprehensive Table at Wikimedia Labs, dynamically sortable to any criteria, self-updating every six hours by cronjob. Requests for inclusion into the statistics[edit] List of 10 largest other wikis[edit]
Superstitions Old Wives Tales Beliefs & Misconceptions A-L Superstitions: old wives tales, folklore, bizarre beliefs, taboos, omens, lucky & unlucky things Superstitions A - L recommended: Cassell's Dictionary of Superstitions 101 American Superstitions : Understanding Language and Culture through Superstitions Sheer Superstition: Outmaneuvering Fate Unexplained Mysteries of the 20th Century Dictionary of Omens and Superstitions Curious Customs and Bizarre Beliefs Around the World Why People Believe Weird Things: Pseudoscience, Superstition, and Other Confusions of Our Time The Invisible Web What is the Invisible Web? How can you find it online? What makes the Invisible Web search engines and Invisible Web databases so special? Find out the answers to these questions and learn more about this section of the Web that's so much larger than what you can uncover with an ordinary Web search. How to Mine the Invisible Web: The Ultimate GuideThe Invisible Web is a mammoth resource that is mostly untapped. Learn how to discover Invisible Web resources with this comprehensive, ultimate guide to searching the Invisible Web's goldmine of information. Invisible Web People SearchThe Invisible Web is a goldmine of information, and since the Invisible Web is larger by far than the parts of the Web we can access with a simple search engine query, there's potentially much more information available. The Invisible Web: How to Find It. Medical Information on the Invisible WebLearn how to find medical information on the Invisible Web. How big is the Invisible Web?
Zooming user interface Example of a ZUI When the level of detail present in the resized object is changed to fit the relevant information into the current size, instead of being a proportional view of the whole object, it's called semantic zooming.[1] Some experts consider the ZUI paradigm as a flexible and realistic successor to the traditional windowing GUI, being a Post-WIMP interface. But little effort is currently spent developing ZUIs, while there are ongoing efforts for developing other types of GUIs. History[edit] GeoPhoenix, a Cambridge, MA, startup associated with the MIT Media Lab, founded by Julian Orbanes, Adriana Guzman, Max Riesenhuber, released the first mass-marketed commercial Zoomspace in 2002-3 on the Sony CLIÉ PDA handheld, with Ken Miura of Sony In 2006, Hillcrest Labs introduced the HoME television navigation system, the first graphical, zooming interface for television.[5] ZUI projects[edit] Eagle Mode’s file manager displaying plain text source code directories See also[edit] References[edit]