Selection-based search
Encyclopedia
A selection-based search system is a search engine
Search engine
A search engine is an information retrieval system designed to help find information stored on a computer system. The search results are usually presented in a list and are commonly called hits. Search engines help to minimize the time required to find information and the amount of information...

 system in which the user invokes a search query using only the mouse
Mouse
A mouse is a small mammal belonging to the order of rodents. The best known mouse species is the common house mouse . It is also a popular pet. In some places, certain kinds of field mice are also common. This rodent is eaten by large birds such as hawks and eagles...

. A selection-based search system allows the user to search the internet for more information about any keyword or phrase contained within a document or webpage in any software application on his desktop computer using the mouse.

Traditional browser-based search systems require the user to launch a web browser
Web browser
A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier and may be a web page, image, video, or other piece of content...

, navigate to a search page, type or paste a query into a search box
Search box
A search box or search field is a common GUI element of computer programs, especially in file and web browsers and on web sites. It is basically a type of text box, the contents of which are to be searched for in a database. It is commonly coupled with a search button ....

, review a list of results, and click a hyperlink
Hyperlink
In computing, a hyperlink is a reference to data that the reader can directly follow, or that is followed automatically. A hyperlink points to a whole document or to a specific element within a document. Hypertext is text with hyperlinks...

 to view these results. Three characteristic features of a selection-based search system are that the user can invoke search using only his mouse from within the context of any application on his desktop (for example Microsoft Office
Microsoft Office
Microsoft Office is a non-free commercial office suite of inter-related desktop applications, servers and services for the Microsoft Windows and Mac OS X operating systems, introduced by Microsoft in August 1, 1989. Initially a marketing term for a bundled set of applications, the first version of...

, Adobe Reader, Mozilla Firefox
Mozilla Firefox
Mozilla Firefox is a free and open source web browser descended from the Mozilla Application Suite and managed by Mozilla Corporation. , Firefox is the second most widely used browser, with approximately 25% of worldwide usage share of web browsers...

, etc.), receive categorized suggestions which are based on the context of the user-selected text (or in some cases the wisdom of crowds), and view the results in floating information boxes which can be sized, shared, docked, closed and stacked on top of the document that has the user’s primary focus.

In its simplest form, selection-based search enables users to launch a search query by selecting text on any application on his desktop. It is commonly believed that selection-based search lowers the user barrier to search and permits an incremental number of searches per user per day. Selection-based search systems also operate on the premise that users value information in context. They may save the user from having to juggle multiple applications, multiple web browsers or use multiple search engines separately.

The term selection-based search is frequently used to classify a set of search engine systems, including a desktop client and a series of cloud computing
Cloud computing
Cloud computing is the delivery of computing as a service rather than a product, whereby shared resources, software, and information are provided to computers and other devices as a utility over a network ....

 services, but is also used to describe the paradigm of categorizing a keyword and searching multiple data sources using only the mouse. The National Information Standards Organization (NISO
Niso
Niso is a genus of very small parasitic sea snails, marine gastropod mollusks or micromollusks in the family Eulimidae. -Species:According to the World Register of Marine Species the following species with accepted names are included within the genus Niso * Niso aeglees Bush, 1885* Niso albida...

) uses the terms selection-based search and mouse-based search interchangeably to describe this web search paradigm.

Operation

Selection-based search systems create what is known as a semantic database of trained terms. They do not compile a physical database
Database
A database is an organized collection of data for one or more purposes, usually in digital form. The data are typically organized to model relevant aspects of reality , in a way that supports processes requiring this information...

 or catalogue of the web on the users' desktop computer. Instead, they take a user's selected keyword or keywords, pass it to several heterogeneous online cloud services, categorize the keyword(s), and then compile the results in a homogeneous manner based on a specific algorithm
Algorithm
In mathematics and computer science, an algorithm is an effective method expressed as a finite list of well-defined instructions for calculating a function. Algorithms are used for calculation, data processing, and automated reasoning...

.

No two selection-based search systems are alike. Some simply provide a list of links in a context menu
Context menu
A context menu is a menu in a graphical user interface that appears upon user interaction, such as a right mouse click or middle click mouse operation...

 to other websites, such as the proposed Internet Explorer 8 Accelerators feature. Others only allow the user to search his desktop files such as Macintosh Spotlight
Spotlight (software)
Spotlight is a system-wide desktop search feature of Apple's Mac OS X operating system. Spotlight is a selection-based search system, which creates a virtual index of all items and files on the system. It is designed to allow the user to quickly locate a wide variety of items on the computer,...

, or to search a popular search engine such as Google
Google
Google Inc. is an American multinational public corporation invested in Internet search, cloud computing, and advertising technologies. Google hosts and develops a number of Internet-based services and products, and generates profit primarily from advertising through its AdWords program...

 or Yahoo!
Yahoo!
Yahoo! Inc. is an American multinational internet corporation headquartered in Sunnyvale, California, United States. The company is perhaps best known for its web portal, search engine , Yahoo! Directory, Yahoo! Mail, Yahoo! News, Yahoo! Groups, Yahoo! Answers, advertising, online mapping ,...

, while others only search lesser-known search engines, newsgroup
Newsgroup
A usenet newsgroup is a repository usually within the Usenet system, for messages posted from many users in different locations. The term may be confusing to some, because it is usually a discussion group. Newsgroups are technically distinct from, but functionally similar to, discussion forums on...

s, and more specialized databases. Selection-based search systems also differ in how the results are presented and the quality of semantic categorization which is used. Some will open links to content in a new browser window. Others return content in floating information boxes which can be sized, shared, docked, etc.

A key challenge for selection-based search is that a long or nested list of categories quickly becomes unwieldy for the user. Therefore, it is incumbent upon the selection-based search system to both categorize the user-selected text and to identify those online services which most naturally apply to the selected text. For example, when the user selects an address, the system needs to identify the address as most suitable for an online mapping service such as Google Maps
Google Maps
Google Maps is a web mapping service application and technology provided by Google, free , that powers many map-based services, including the Google Maps website, Google Ride Finder, Google Transit, and maps embedded on third-party websites via the Google Maps API...

. When the user selects a movie title, the system needs to identify the selection as suitable for a movie database such as Internet Movie Database
Internet Movie Database
Internet Movie Database is an online database of information related to movies, television shows, actors, production crew personnel, video games and fictional characters featured in visual entertainment media. It is one of the most popular online entertainment destinations, with over 100 million...

. When the user selects the name of a company, the system needs to identify the concordant stock symbol and an appropriate financial database such as Yahoo! Finance
Yahoo! Finance
Yahoo! Finance is a service from Yahoo! that provides financial information. It is the top financial news and research website in the United States, with more than 23 million visitors in February 2010, according to comScore....

.

Quality of results

Usability can vary widely between selection-based search systems based on a large number of variables. Even the most basic selection-based search systems will allow more of the web to be searched by the user in the context of his work than any one stand-alone search engine. On the other hand, the process is sometimes said to be redundant if the system applies no intelligence to categorizing the selected text and matching it to an online service, and simply provides a link for the user to his or her preferred search engine(s).

See also

For cloud computing services used by selection-based search systems, see the list of search engines
  • Accelerator in Internet Explorer 8
    Accelerator (Internet Explorer)
    Accelerators are a form of selection-based search which allow a user to invoke an online service from any other page using only the mouse introduced by Microsoft in Internet Explorer 8...

  • Microsoft Smart Tags
  • Yahoo! Search selection-based search
  • Macintosh Spotlight
    Spotlight (software)
    Spotlight is a system-wide desktop search feature of Apple's Mac OS X operating system. Spotlight is a selection-based search system, which creates a virtual index of all items and files on the system. It is designed to allow the user to quickly locate a wide variety of items on the computer,...


External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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