Projection pursuit

Projection pursuit

Projection pursuit is a type of statistical technique which involves finding the most "interesting" possible projections in multidimensional data. Often, projections which deviate more from a Normal distribution are considered to be more interesting. As each projection is found, the data are reduced by removing the component along that projection, and the process is repeated to find new projections; this is the "pursuit" aspect that motivated the techniqe known as matching pursuit.

The projection pursuit concept was developed by Jerome H. Friedman and John Tukey in 1974. [cite journal | title = A Projection Pursuit Algorithm for Exploratory Data Analysis | author = J. H. Friedman and J. W. Tukey | journal = IEEE Transactions on Computers | date=Sept. 1974 | volume=C-23 | issue=9 | pages = 881–890 | issn=0018-9340 | url = http://ieeexplore.ieee.org/iel5/12/35088/01672644.pdf?isnumber=35088&prod=JNL&arnumber=1672644&arSt=+881&ared=+890&arAuthor=Friedman%2C+J.H.%3B+Tukey%2C+J.W. | doi = 10.1109/T-C.1974.224051 ]

References


Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Projection Pursuit — Inhaltsverzeichnis 1 Exploratory Projection Pursuit 1.1 Indizes 1.2 Verwandte Methoden 2 Projection Pursuit Regression …   Deutsch Wikipedia

  • Matching pursuit — Signal reconstruction with matching pursuit algorithm. Matching pursuit is a type of numerical technique which involves finding the best matching projections of multidimensional data onto an over complete dictionary D. The basic idea is to… …   Wikipedia

  • Poursuite de projection — La poursuite de projection est une méthode d analyse des données multivariées qui relève des statistiques. Sommaire 1 Historique 2 Description 3 Voir aussi 3.1 Liens externes …   Wikipédia en Français

  • Power projection — USS John C. Stennis, and HMS Illustrious, two aircraft carriers on a joint patrol, and an important role of a blue water navy. Power projection (or force projection) is a term used in military and political science to refer to th …   Wikipedia

  • The Pursuit of Happyness — À la recherche du bonheur À la recherche du bonheur ou La poursuite du bonheur au Québec est une comédie dramatique de Gabriele Muccino sortie en 2007. Sommaire 1 Synopsis 2 Fiche Technique 3 Distribution …   Wikipédia en Français

  • Поиск наилучшей проекции — Эту статью следует викифицировать. Пожалуйста, оформите её согласно правилам оформления статей. Поиском наилучшей проекции (англ. Projection Pursuit) называ …   Википедия

  • List of statistics topics — Please add any Wikipedia articles related to statistics that are not already on this list.The Related changes link in the margin of this page (below search) leads to a list of the most recent changes to the articles listed below. To see the most… …   Wikipedia

  • List of mathematics articles (P) — NOTOC P P = NP problem P adic analysis P adic number P adic order P compact group P group P² irreducible P Laplacian P matrix P rep P value P vector P y method Pacific Journal of Mathematics Package merge algorithm Packed storage matrix Packing… …   Wikipedia

  • Grand Tour (Statistik) — Die Grand Tour ist ein Verfahren zur explorativen Analyse hochdimensionaler multivariater Daten, das zuerst von Daniel Asimov und Andreas Buja beschrieben wurde[1][2]. Dargestellt ist eine Projektion einer Grand Tour durch Daten mit sechs Dime …   Deutsch Wikipedia

  • Karhunen-Loève-Transformation — Hauptkomponentenanalyse als Faktorenanalyse: Zwei Hauptkomponenten einer zweidimensionalen Punktwolke (orthogonal rotiert) Die Hauptkomponentenanalyse (englisch: Principal Component Analysis, PCA) ist ein Verfahren der multivariaten Statistik.… …   Deutsch Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”