feature reduction

См. также в других словарях:

• Feature selection — Feature selection, also known as variable selection, feature reduction, attribute selection or variable subset selection, is the technique, commonly used in machine learning, of selecting a subset of relevant features for building robust learning …   Wikipedia

• Feature extraction — In pattern recognition and in image processing, Feature extraction is a special form of dimensionality reduction.When the input data to an algorithm is too large to be processed and it is suspected to be notoriously redundant (much data, but not… …   Wikipedia

• Feature vector — In pattern recognition and machine learning, a feature vector is an n dimensional vector of numerical features that represent some object. Many algorithms in machine learning require a numerical representation of objects, since such… …   Wikipedia

• Feature Subset Selection — Die Feature Subset Selection (FSS), kurz Feature Selection, ist ein Ansatz aus dem maschinellen Lernen, bei dem nur eine Teilmenge der verfügbaren Features für einen Lernalgorithmus verwendet wird. FSS ist notwendig, weil es teilweise technisch… …   Deutsch Wikipedia

• Dimension reduction — For dimensional reduction in physics, see Dimensional reduction. In machine learning, dimension reduction is the process of reducing the number of random variables under consideration, and can be divided into feature selection and feature… …   Wikipedia

• Vowel reduction in Russian — Main article: Russian phonology Vowel reduction in Russian differs in the standard language and in dialects. Several ways of reduction (and its absence) are distinguished. There are five vowel phonemes in Standard Russian. Vowels tend to merge… …   Wikipedia

• oxidation–reduction reaction — ▪ chemical reaction Introduction also called  redox reaction        any chemical reaction in which the oxidation number of a participating chemical species changes. The term covers a large and diverse body of processes. Many oxidation– reduction… …   Universalium

• Dolby noise reduction system — Dolby NR is the name given to a series of noise reduction systems developed by Dolby Laboratories for use in analogue magnetic tape recording. The first was Dolby A professional noise reduction for recording studios in 1966, but the best known is …   Wikipedia

• Nonlinear dimensionality reduction — High dimensional data, meaning data that requires more than two or three dimensions to represent, can be difficult to interpret. One approach to simplification is to assume that the data of interest lies on an embedded non linear manifold within… …   Wikipedia

• Disaster risk reduction — (DRR) is a systematic approach to identifying, assessing and reducing the risks of disaster. It aims to reduce socio economic vulnerabilities to disaster as well as dealing with the environmental and other hazards that trigger them: here it has… …   Wikipedia

• United States Congress Joint Select Committee on Deficit Reduction — The Joint Select Committee on Deficit Reduction,[1] colloquially referred to as the Supercommittee, is a joint select committee of the United States Congress, created by the Budget Control Act of 2011 on August 2, 2011. The act was intended to… …   Wikipedia