Algorithms for relevance in SE

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In the simplest case, relevance can be calculated by examining how many times a query term appears in a document (term frequency), possibly combined with how discriminative that query term is across the searched collection (often called Term Frequency-Inverse Document … Read More

Radio

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Radio is a technology that allows for the transmission of signals by modulation of electromagnetic waves. These waves travel (propagate) through the air and the vacuum of space equally well, not requiring a medium of transport. A radio wave is … Read More

Proposition bets in craps

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Note: Individual casinos may pay some of these bets at different odds than those listed below. The payoff odds listed are the most common throughout North American casinos. Actual odds, of course, do not vary. Proposition bets are generally located … Read More

Future of the advertising

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With the dawn of the Internet have come many new advertising opportunities. Popup, Flash, banner, and email advertisements (the last often being a form of spam) abound. Recently, the advertising community has attempted to make the adverts themselves desirable to … Read More

Information appliance

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In general terms, an information appliance or information device is any machine or device that is usable for the purposes of computing, telecommunicating, reproducing, and presenting encoded information in myriad forms and applications. The common technical usage of “information appliance” … Read More

Origin of the term “confidence trick”

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Though dishonesty for financial gain had existed long before, the specific term “confidence man” was first coined in 1849 by the New York Herald to describe the deceptions of William Thompson. Thompson, dressed in genteel fashion, would approach wealthy New … Read More

AdSense

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AdSense is an advertising program run by Google. Website owners can enroll in this program to enable text and image advertisements on their sites. These ads are administered by Google and generate revenue on either a per-click or per-thousand-ads-displayed basis. … Read More

Brand history

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Brands in the field of marketing originated in the 19th century with the advent of packaged goods. Industrialization moved the production of many household items, such as soap, from local communities to centralized factories. When shipping their items, the factories … Read More

Web development software

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Most web site builders are proprietary tools provided by web hosting companies which cater to people who wish to build their own websites without learning the technical aspects of web page production. The person who wishes to use the website … Read More

Online scratch cards

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Online scratch cards are the online version of lottery scratch cards. Online scratch cards are played by clicking on designated areas to reveal information used in determining the card’s prize value. These online companies provide various cards, and there are … Read More

Spyware and cookies

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Anti-spyware programs often report Web advertisers’ HTTP cookies as spyware. Web sites (including advertisers) set cookies — small pieces of data rather than software—to track Web-browsing activity: for instance to maintain a “shopping cart” for an online store or to … Read More

History of greyhound racing

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Modern greyhound racing has its origins in coursing. The first recorded attempt at racing greyhounds on a straight track was made beside the Welsh Harp reservoir, Hendon in 1876, but this experiment did not develop. The sport emerged in its … Read More

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