Sunday, June 28, 2009

Syntactic sugar

Syntactic sugar

"In computer science, syntactic sugar in a language is syntax designed to make things easier to read or to express, while alternative ways of expressing them exist."

Thursday, June 11, 2009

Jerboa - Wikipedia, the free encyclopedia

Jerboa - Wikipedia, the free encyclopedia: "The jerboa (from Arabic يربوع yarbū' or Hebrew יַרְבּוֹעַ yarbōa' ) form the bulk of the membership of the family Dipodidae. Jerboas are jumping desert rodents found throughout Asia and Northern Africa."

Levenshtein distance

Levenshtein distance

"In information theory and computer science, the Levenshtein distance is a metric for measuring the amount of difference between two sequences (i.e., the so called edit distance)."

Wednesday, June 10, 2009

Shimenawa

Shimenawa

"Shimenawa (標縄・注連縄・七五三縄?, , lit. 'enclosing rope') are lengths of braided rice straw rope used for ritual purification in the Shinto religion"

Cellular Potts model

Cellular Potts model

"The cellular Potts model is a lattice-based computational modeling method to simulate the collective behavior of cellular structures."

Tuesday, June 09, 2009

St. Petersburg paradox

St. Petersburg paradox

"In economics, the St. Petersburg paradox is a paradox related to probability theory and decision theory. It is based on a particular (theoretical) lottery game (sometimes called St. Petersburg Lottery) that leads to a random variable with infinite expected value, i.e. infinite expected payoff, but would nevertheless be considered to be worth only a very small amount of money."

Monday, June 01, 2009

De Morgan's laws

De Morgan's laws

"In formal logic, De Morgan's laws are rules relating the logical operators 'and' and 'or' in terms of each other via negation, namely:

NOT (P OR Q) = (NOT P) AND (NOT Q)
NOT (P AND Q) = (NOT P) OR (NOT Q)"

Friday, May 29, 2009

Star schema

Star schema

"The star schema (sometimes referenced as star join schema) is the simplest style of data warehouse schema."

Extended Backus–Naur Form

Extended Backus–Naur Form

"In computer science, Extended Backus–Naur Form (EBNF) is a metasyntax notation used to express context-free grammars: that is, a formal way to describe computer programming languages and other formal languages."

Tuesday, May 26, 2009

Anxiolytic

Anxiolytic

"An anxiolytic (or antianxiety agent) is a drug prescribed for the treatment of symptoms of anxiety."

High dynamic range imaging

High dynamic range imaging

"In image processing, computer graphics, and photography, high dynamic range imaging (HDRI or just HDR) is a set of techniques that allows a greater dynamic range of luminances between light and dark areas of a scene than normal digital imaging techniques."

Sunday, May 17, 2009

Juzo Itami

Juzo Itami

"Juzo Itami (伊丹 十三 ,Itami Jūzō?, May 15, 1933 – December 20, 1997) was an actor and (later) a popular modern Japanese film director. Many critics came to regard him as Japan's greatest director since Akira Kurosawa. His 10 movies, all of which he wrote himself, are comic satires on elements of Japanese culture."

Wednesday, May 06, 2009

(Geometric) Distortion (optics)

Distortion (optics)

"In geometric optics and cathode ray tube (CRT) displays, distortion is a deviation from rectilinear projection, a projection in which straight lines in a scene remain straight in an image. It is a form of optical aberration."

Tuesday, May 05, 2009

Bernard d'Espagnat

Bernard d'Espagnat

"Bernard d'Espagnat (b. Fourmagnac, France, 1921) is a French theoretical physicist, philosopher of science, and author, best known for his work on the nature of reality."

Hardy's paradox

Hardy's paradox

"Hardy's paradox is a thought experiment in quantum mechanics devised by Lucien Hardy in which a particle and its antiparticle may interact without annihilating each other. The paradox arises in that this may only occur if the interaction is not observed and so it seemed that one might never be able to confirm this."

Nonlocality

Nonlocality

"In physics, nonlocality is a direct influence of one object on another distant object, in violation of the principle of locality."

defeasible

defeasible

adj. "capable of being annulled or terminated."

Synesthesia

Synesthesia

"Synesthesia (also spelled synæsthesia or synaesthesia, plural synesthesiae or synaesthesiae)—from the Ancient Greek σύν (syn), 'together,' and αἴσθησις (aisthēsis), 'sensation' — is a neurologically based phenomenon in which stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway."

Onomatopoeia

Onomatopoeia

"Onomatopoeia or onomatopœia, from the Greek ὀνοματοποιία (ὄνομα for 'name' and ποιέω for 'I make'), is one or more words that imitate or suggest the source of the sound they are describing."

Sunday, May 03, 2009

Honne and tatemae

Honne and tatemae

"Honne (本音 ?) refers to a person's true feelings and desires. Tatemae (建前 ?), literally 'façade,' is the behaviour and opinions one displays in public."