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Representation may refer to:


Law and politics

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Representation (politics) Political representation is the activity of making citizens "present" in public policy-making processes when political actors act in the best interest of citizens. This definition of political representation is consistent with a wide variety of vi ...
, political activities undertaken by elected representatives, as well as other theories **
Representative democracy Representative democracy, also known as indirect democracy, is a type of democracy where elected people represent a group of people, in contrast to direct democracy. Nearly all modern Western-style democracies function as some type of represen ...
, type of democracy in which elected officials represent a group of people * Representation, in contract law a pre-contractual statement that may (if untrue) result in liability for
misrepresentation In common law jurisdictions, a misrepresentation is a false or misleading '' R v Kylsant'' 931/ref> statement of fact made during negotiations by one party to another, the statement then inducing that other party to enter into a contract. The m ...
* Labor representation, or worker representation, the work of a
union representative A union representative, union steward, or shop steward is an employee of an organization or company who represents and defends the interests of their fellow employees as a labor union member and official. Rank-and-file members of the union hold ...
who represents and defends the interests of fellow labor union members * Legal representation, provided by a barrister, lawyer, or other
advocate An advocate is a professional in the field of law. Different countries' legal systems use the term with somewhat differing meanings. The broad equivalent in many English law–based jurisdictions could be a barrister or a solicitor. However, ...
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Lobbying In politics, lobbying, persuasion or interest representation is the act of lawfully attempting to influence the actions, policies, or decisions of government officials, most often legislators or members of regulatory agency, regulatory agencie ...
or interest representation, attempts to influence the actions, policies, or decisions of officials * "
No taxation without representation "No taxation without representation" is a political slogan that originated in the American Revolution, and which expressed one of the primary grievances of the American colonists for Great Britain. In short, many colonists believed that as they ...
", a 1700s slogan that summarized one of the American colonists' 27 colonial grievances in the Thirteen Colonies, which was one of the major causes of the American Revolution * Permanent representation, a type of
diplomatic mission A diplomatic mission or foreign mission is a group of people from a state or organization present in another state to represent the sending state or organization officially in the receiving or host state. In practice, the phrase usually deno ...


Arts, entertainment, and media

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Representation (arts) Representation is the use of signs that stand in for and take the place of something else.Mitchell, W. 1995, "Representation", in F Lentricchia & T McLaughlin (eds), ''Critical Terms for Literary Study'', 2nd edn, University of Chicago Press, Chica ...
, use of signs that stand in for and take the place of something else * ''Representation'' (journal), an academic journal covering representative democracy *
Depiction Depiction is reference conveyed through pictures. A picture refers to its object through a non-linguistic two-dimensional scheme, and is distinct from writing or notation. A depictive two-dimensional scheme is called a picture plane and may be cons ...
, non-verbal representation through two-dimensional images (pictures) of things seen, remembered or imagined


Cognitive science

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Representation (psychology) A mental representation (or cognitive representation), in philosophy of mind, cognitive psychology, neuroscience, and cognitive science, is a hypothetical internal cognitive symbol that represents external reality, or else a mental process that ...
, a hypothetical 'internal' cognitive symbol that represents external reality *
Knowledge representation Knowledge representation and reasoning (KRR, KR&R, KR²) is the field of artificial intelligence (AI) dedicated to representing information about the world in a form that a computer system can use to solve complex tasks such as diagnosing a medic ...
, the study of formal ways to describe knowledge *
Representation theory (linguistics) Representation theory (RT) is a theoretical linguistic framework in the generative Generative may refer to: * Generative actor, a person who instigates social change * Generative art, art that has been created using an autonomous system that is f ...
, a theoretical framework in generative linguistics


Mathematics

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Representation (mathematics) In mathematics, a representation is a very general relationship that expresses similarities (or equivalences) between mathematical objects or structures. Roughly speaking, a collection ''Y'' of mathematical objects may be said to ''represent'' anot ...
, a very general relationship that expresses similarities between objects *
Group representation In the mathematical field of representation theory, group representations describe abstract groups in terms of bijective linear transformations of a vector space to itself (i.e. vector space automorphisms); in particular, they can be used to re ...
, describes abstract groups in terms of linear transformations of vector spaces *
Lie algebra representation In the mathematical field of representation theory, a Lie algebra representation or representation of a Lie algebra is a way of writing a Lie algebra as a set of matrices (or endomorphisms of a vector space) in such a way that the Lie bracket is g ...
, a way of writing a Lie algebra as a set of matrices in such a way that the Lie bracket is given by the commutator *
Multiple representations (mathematics education) In mathematics education, a representation is a way of encoding an idea or a relationship, and can be both internal (e.g., mental construct) and external (e.g., graph). Thus multiple representations are ways to symbolize, to describe and to refer to ...
, ways to symbolize, to describe and to refer to the same mathematical entity *
Representation of a Lie group In mathematics and theoretical physics, a representation of a Lie group is a linear action of a Lie group on a vector space. Equivalently, a representation is a smooth homomorphism of the group into the group of invertible operators on the vecto ...
, a linear action of a Lie group on a vector space


Other uses

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Representation (chemistry) The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are possibly arranged in the real three-dimensional space. The chemical bondi ...
, graphic representation of the molecular structure of a chemical compound *
Social representation Social representations are a system of values, ideas, metaphors, beliefs, and practices that serve to establish social order, orient participants and enable communication among the members of groups and communities. Social representation theory is ...
, a stock of values, ideas, beliefs, and practices that are shared among the members of groups and communities *
Representative sample In statistics, quality assurance, and survey methodology, sampling is the selection of a subset (a statistical sample) of individuals from within a statistical population to estimate characteristics of the whole population. Statisticians attempt ...
in statistics


See also

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Data visualization Data and information visualization (data viz or info viz) is an interdisciplinary field that deals with the graphic representation of data and information. It is a particularly efficient way of communicating when the data or information is num ...
, the creation and study of the visual representation of data *
Reprazent Roni Size & Reprazent (stylised as Roni Size / Reprazent) are a British drum and bass group fronted by Roni Size. Their debut album '' New Forms'' won the Mercury Music Prize in 1997. Their follow-up album ''In the Møde'' featured artists incl ...
, a British drum and bass group *
Represent (disambiguation) Represent may refer to: * ''Represent'' (Compton's Most Wanted album) or the title song, 2000 * ''Represent'' (Fat Joe album), 1993 * ''Represent'', an album by DJ Magic Mike, 1994 * "Represent" (song), by Nas, 1994 * "Represent", a song by the ...
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