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pattern recognition

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pattern recognition

Not who you're looking for? Others named pattern recognition: cognitive process that matches information from a stimulus w · 2003 novel by William Gibson

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What's driving coverage of pattern recognition right now?

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Overview

Pattern recognition is the automated recognition of patterns and regularities in data. While similar, pattern recognition (PR) is not to be confused with pattern machines (PM) which may possess (PR) capabilities but their primary function is to distinguish and create emergent pattern. PR has applications in statistical data analysis, signal processing, image analysis, information retrieval, bioinformatics, data compression, computer graphics and machine learning. Pattern recognition has its origins in statistics and engineering; some modern approaches to pattern recognition include the use of machine learning, due to the increased availability of big data and a new abundance of processing power. Pattern recognition systems are commonly trained from labeled "training" data. When no labeled data are available, other algorithms can be used to discover previously unknown patterns. KDD and data mining have a larger focus on unsupervised methods and stronger connection to business use. Pattern recognition focuses more on the signal and also takes acquisition and signal processing into consideration. It originated in engineering, and the term is popular in the context of computer vision: a leading computer vision conference is named Conference on Computer Vision and Pattern Recognition. In machine learning, pattern recognition is the assignment of a label to a given input value. In statistics, discriminant analysis was introduced for this same purpose in 1936. An example of pattern recognition is classification, which attempts to assign each input value to one of a given set of classes (for example, determine whether a given email is "spam"). Pattern recognition is a more general problem that encompasses other types of output as well. Other examples are regression, which assigns a real-valued output to each input; sequence labeling, which assigns a class to each member of a sequence of values (for example, part of speech tagging, which assigns a part of speech to each word in an input sentence); and parsing, which assigns a parse tree to an input sentence, describing the syntactic structure of the sentence. Pattern recognition algorithms generally aim to provide a reasonable answer for all possible inputs and to perform "most likely" matching of the inputs, taking into account their statistical variation. This is opposed to pattern matching algorithms, which look for exact matches in the input with pre-existing patterns.

From Wikipedia (CC BY-SA 4.0).

Notable quotes

“Nothing at all in the German fridge, so new that its interior smells only of cold and long-chain monomers.”
— Chapter 1, "The Website of Dreadful Night"
“But Cayce sees that there is a Michelin Man within her field of vision, its white, bloated, maggot−like form perched on the edge of a dealer's counter, about thirty feet away. It is about two feet tall, and is probably meant to be illuminated from within. The Michelin Man was the first trademark to which she exhibited a phobic reaction. She had been six.”
— Chapter 4, "Math Grenades"
“And then she hears the sound of a helicopter, from somewhere behind her and, turning, sees the long white beam of light sweeping the dead ground as it comes, like a lighthouse gone mad from loneliness, and searching that barren ground as foolishly, as randomly, as any grieving heart ever has.”
— Chapter 39, "Bed Dust"
“The old man was as American as it got, but in what she thought of as some very recently archaic way. Someone who would’ve been in charge of something, in America, when grown-ups still ran things.”
— Chapter 71, "Hard to Be One"
“The door opened inward, revealing a football player with an Eighties porn haircut.”
— Chapter 2, "Edge City"
“Simply in terms of ingredients, it’s about recent trends in the evolution of the psychology of luxury goods, crooked former Special Forces officers, corrupt military contractors, the wonderfully bizarre symbiotic relationship between designers of high-end snowboarding gear and manufacturers of military clothing, and the increasingly virtual nature of the global market.”
— "Talk for Book Expo, New York," 2010, published in Distrust That Particular Flavor, 2012.

Quotes via Wikiquote (CC BY-SA), each with its original source.

Notable quotes

“Nothing at all in the German fridge, so new that its interior smells only of cold and long-chain monomers.”
— Chapter 1, "The Website of Dreadful Night"
“But Cayce sees that there is a Michelin Man within her field of vision, its white, bloated, maggot−like form perched on the edge of a dealer's counter, about thirty feet away. It is about two feet tall, and is probably meant to be illuminated from within. The Michelin Man was the first trademark to which she exhibited a phobic reaction. She had been six.”
— Chapter 4, "Math Grenades"
“And then she hears the sound of a helicopter, from somewhere behind her and, turning, sees the long white beam of light sweeping the dead ground as it comes, like a lighthouse gone mad from loneliness, and searching that barren ground as foolishly, as randomly, as any grieving heart ever has.”
— Chapter 39, "Bed Dust"
“The old man was as American as it got, but in what she thought of as some very recently archaic way. Someone who would’ve been in charge of something, in America, when grown-ups still ran things.”
— Chapter 71, "Hard to Be One"
“The door opened inward, revealing a football player with an Eighties porn haircut.”
— Chapter 2, "Edge City"
“Simply in terms of ingredients, it’s about recent trends in the evolution of the psychology of luxury goods, crooked former Special Forces officers, corrupt military contractors, the wonderfully bizarre symbiotic relationship between designers of high-end snowboarding gear and manufacturers of military clothing, and the increasingly virtual nature of the global market.”
— "Talk for Book Expo, New York," 2010, published in Distrust That Particular Flavor, 2012.

Quotes via Wikiquote (CC BY-SA), each with its original source.

Overview

From Wikipedia (CC BY-SA 4.0).