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Scheme (mathematics) In mathematics, a scheme is a mathematical structure that enlarges the notion of algebraic variety in several ways, such as taking account of multiplicities (the equations x = 0 and x2 = 0 define the same algebraic variety but different schemes) and allowing "varieties" defined over any commutative ring (for example, Fermat ...
Schema (psychology) In psychology and cognitive science, a schema ( pl.: schemata or schemas) describes a pattern of thought or behavior that organizes categories of information and the relationships among them. [1] [2] It can also be described as a mental structure of preconceived ideas, a framework representing some aspect of the world, or a ...
Scheme (programming language) Scheme is a dialect of the Lisp family of programming languages. Scheme was created during the 1970s at the MIT Computer Science and Artificial Intelligence Laboratory (MIT AI Lab) and released by its developers, Guy L. Steele and Gerald Jay Sussman, via a series of memos now known as the Lambda Papers. It was the ...
Classification scheme (information science) In information science and ontology, a classification scheme is the product of arranging things into kinds of things (classes) or into groups of classes; this bears similarity to categorization, but with perhaps a more theoretical bent, as classification can be applied over a wide semantic spectrum.
A Ponzi scheme ( / ˈpɒnzi /, Italian: [ˈpontsi]) is a form of fraud that lures investors and pays profits to earlier investors with funds from more recent investors. [1] Named after Italian businessman Charles Ponzi, this type of scheme misleads investors by either falsely suggesting that profits are derived from legitimate business ...
In rhetoric, a scheme is a type of figure of speech that relies on the structure of the sentence, unlike the trope, which plays with the meanings of words. [1] A single phrase may involve both a trope and a scheme, e.g., may use both alliteration and allegory .
Scheme (rhetoric), a figure of speech that changes a sentence's structure. Scam, an attempt to swindle or cheat people through deception. Get-rich-quick scheme, a plan to obtain high rates of return for a small investment. Matrix scheme, or ladder scheme, a business model involving the exchange of money for a product and a waiting list for a ...
Scam. A scam, or a confidence trick, is an attempt to defraud a person or group after first gaining their trust. Confidence tricks exploit victims using a combination of the victim's credulity, naïveté, compassion, vanity, confidence, irresponsibility, and greed. Researchers have defined confidence tricks as "a distinctive species of ...