Author Archives: Nicolae Sfetcu

Since the mid-1990s, web development has been one of the fastest growing industries in the world. In 1995 there were fewer than 10,000 web development companies in the United States alone and in 2005 there are over 30,000 such companies.[1] … Read More

The unseen cards principle states that to calculate the probability (from the point of view of a player about to act) that the next card dealt will be among a certain set, he must divide the number of cards in … Read More

Lavasoft’s Ad-Aware, one of a few reliable commercial anti-spyware programs, scans the hard drive of a clean Windows XP system. Many programmers and some commercial firms have released products designed to remove or block spyware. Steve Gibson’s OptOut, mentioned above, … Read More

A satellite is an object that orbits another object. With sufficient tangential velocity, the object does not collide with the primary object it orbits, but maintains a distance from that object as the rate at which it falls towards that … Read More

French Piquet deck Piquet is a card game for two players. It is considered by many to be one of the best two player card games. Pronounced “pee-kay” in France, it is usually pronounced “picket” in English speaking countries. Piquet … Read More

Spamming remains a hot discussion topic. In fact, many online users have even suggested (though they were presumably joking) that cruel forms of capital punishment would be appropriate for spammers. In 2004, the seized Porsche of an indicted spammer was … Read More

In a general sense , the term Information System (IS) refers to a system of people, data records and activities that process the data and information in an organization, and it includes the organization’s manual and automated processes. In a … Read More

During play—that is, from the flop and onwards—drawing probabilities come down to a question of outs. All situations which have the same number of outs have the same probability of winning. For example, an inside straight draw (e.g. 34 67 … Read More

The Word error rate (WER) is a metric based on the Levenshtein distance, where the Levenshtein distance works at the character level, WER works at the word level. It was originally used for measuring the performance of speech recognition systems, … Read More

A website (alternatively, Web site or web site) is a collection of Web pages, images, videos and other digital assets that is hosted on one or several Web server(s), usually accessible via the Internet, cell phone or a LAN. A … Read More

Keyword density is the percentage of words on a web page that match a specified set of keywords. In the context of search engine optimization keyword density can be used as a factor in determining whether a web page is … Read More

Availability error, related to the gambler’s fallacy, is the distortion of one’s perceptions of reality due to the tendency to remember one alternative outcome of a situation much more easily than another. For example, if surrounded by slot machines people … Read More