Search results
Results From The WOW.Com Content Network
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 ...
Diffie–Hellman (DH) key exchange [ nb 1] is a mathematical method of securely exchanging cryptographic keys over a public channel and was one of the first public-key protocols as conceived by Ralph Merkle and named after Whitfield Diffie and Martin Hellman. [ 1][ 2] DH is one of the earliest practical examples of public key exchange ...
Extortion is the practice of obtaining benefit (e.g., money or goods) through coercion. In most jurisdictions it is likely to constitute a criminal offence; the bulk of this article deals with such cases. Robbery is the simplest and most common form of extortion, although making unfounded threats in order to obtain an unfair business advantage ...
Card schemes are payment networks linked to payment cards, such as debit or credit cards, of which a bank or any other eligible financial institution can become a member. By becoming a member of gets the possibility to issue cards or acquire merchants operating on the network of that card scheme. [ 1][ 2] UnionPay, Visa and MasterCard are three ...
Vote buying (also referred to as electoral clientelism and patronage politics) occurs when a political party or candidate distributes money or resources to a voter in an upcoming election with the expectation that the voter votes for the actor handing out monetary rewards. [ 1] Vote buying can take various forms such as a monetary exchange, as ...
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 (mathematics) In mathematics, specifically algebraic geometry, a scheme is a 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 ...
They are used in subject indexing schemes, subject headings, thesauri, [1] [2] taxonomies and other knowledge organization systems. Controlled vocabulary schemes mandate the use of predefined, preferred terms that have been preselected by the designers of the schemes, in contrast to natural language vocabularies, which have no such restriction. [3]