different between regression vs classification

English

Etymology

From regress +? -ion.

Pronunciation

• IPA^(key): /?i???????n/
• (Canada) IPA^(key): /????????n/

Noun

regression (countable and uncountable, plural regressions)

1. An action of regressing, a return to a previous state.
   • 1899: Thorstein Veblen, The Theory of the Leisure Class

     Few of these groups or communities that are classed as "savage" show no traces of regression from a more advanced cultural stage.

2. An action of travelling mentally back in time.
3. (psychotherapy) A psychotherapeutic method whereby healing is facilitated by inducing the patient to act out behaviour typical of an earlier developmental stage.
4. (statistics) An analytic method to measure the association of one or more independent variables with a dependent variable.

   • Supervised learning problems are categorized into "regression" and "classification" problems. In a regression problem, we are trying to predict results within a continuous output, meaning that we are trying to map input variables to some continuous function.[2]

5. (statistics) An equation using specified and associated data for two or more variables such that one variable can be estimated from the remaining variable(s).
6. (programming) The reappearance of a bug in a piece of software that had previously been fixed.
7. (medicine) The diminishing of a cellular mass like a tumor, or of an organ size.
8. (exercise) The making an exercise less straining to perform by manipulating the details of its performance like loaded weight, range of motion, angle, speed.

Antonyms

• progression

Hyponyms

• linear regression

Related terms

• (computing): regression testing
• (psychotherapy): regression therapy
• (statistics): regression to the mean

Translations

References

• regression on Wikipedia.Wikipedia

Finnish

Noun

regression

1. Genitive singular form of regressio.

English

Etymology

Borrowed from French classification

Pronunciation

• (US) IPA^(key): /?klæs?f??ke???n/
• Rhymes: -e???n

Noun

classification (countable and uncountable, plural classifications)

1. The act of forming into a class or classes; a distribution into groups, as classes, orders, families, etc., according to some common relations or attributes.
   • 1997: Chris Horrocks, Introducing Foucault, page 69 (Totem Books, Icon Books; ?ISBN

     I’m using mathesis — a universal science of measurement and order …
     And there is also taxinomia a principle of 'classification' and ordered tabulation.
     Knowledge replaced universal resemblance with finite differences. History was arrested and turned into tables …
     Western reason had entered the age of judgement.

Derived terms

• classification scheme
• classification yard

Related terms

• class
• classic
• classify
• category
• categorize
• segment

Translations

Further reading

• classification in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• classification in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• classification at OneLook Dictionary Search

French

Etymology

classe +? -ification

Pronunciation

Noun

classification f (plural classifications)

1. classification

Further reading

• “classification” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).