Image Retrieval

An image retrieval system is a computer system for browsing, searching and retrieving images from a large database of digital images. Most traditional and common methods of image retrieval utilize some method of adding metadata such as captioning, keywords, or descriptions to the images so that retrieval can be performed over the annotation words. Manual image annotation is time-consuming, laborious and expensive; to address this, there has been a large amount of research done on automatic image annotation. Additionally, the increase in social web applications and the semantic web have inspired the development of several web-based image annotation tools. Read more

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Web Crawler

A Web crawler is a computer program that browses the World Wide Web in a methodical, automated manner or in an orderly fashion. Other terms for Web crawlers are ants, automatic indexers, bots, Web spiders, Web robots, or especially in the FOAF community Web scutters.This process is called Web crawling or spidering. Many sites, in particular search engines, use spidering as a means of providing up-to-date data. Web crawlers are mainly used to create a copy of all the visited pages for later processing by a search engine that will index the downloaded pages to provide fast searches. Crawlers can also be used for automating maintenance tasks on a Web site, such as checking links or validating HTML code. Also, crawlers can be used to gather specific types of information from Web pages, such as harvesting e-mail addresses (usually for sending spam). Read More

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Online identity

An online identity, internet identity, or internet persona is a social identity that an Internet user establishes in online communities and websites. Although some people prefer to use their real names online, some internet users prefer to be anonymous,identifying themselves by means of pseudonyms, which reveal varying amounts of personally identifiable information. Read more

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Online identity management

Online identity management (OIM) also known as online image management or online personal branding or personal reputation management (PRM) is a set of methods for generating a distinguished Web presence of a person on the Internet. That presence could be reflected in any kind of content that refers to the person, including news, participation in blogs and forums, personal web sites (Marcus, Machilek & Schütz 2006), social media presence, pictures, video, etc. Read more

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Online reputation management

Online reputation management (or monitoring) is the practice of monitoring the Internet reputation of a person, brand or business, with the goal of suppressing negative mentions entirely, or pushing them lower on search engine results pages to decrease their visibility. Read more

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Impression management

In sociology and social psychology, impression management is a goal-directed conscious or unconscious process in which people attempt to influence the perceptions of other people about a person, object or event; they do so by regulating and controlling information in social interaction (Piwinger & Ebert 2001, pp. 1–2). It is usually used synonymously with self-presentation, in which a person tries to influence the perception of their image. Read more

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