The purpose of data reduction can be two-fold: reduce the number of data records by eliminating invalid data or produce summary data and statistics at...
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K-nearest neighbors algorithm (section Data reduction)
boundary complexity. Data reduction is one of the most important problems for work with huge data sets. Usually, only some of the data points are needed...
32 KB (4,333 words) - 23:48, 16 April 2025
The data below tabulates standard electrode potentials (E°), in volts relative to the standard hydrogen electrode (SHE), at: Temperature 298.15 K (25.00 °C;...
64 KB (1,444 words) - 00:54, 15 May 2025
In information theory, data compression, source coding, or bit-rate reduction is the process of encoding information using fewer bits than the original...
68 KB (7,556 words) - 22:09, 19 May 2025
Dimensionality reduction, or dimension reduction, is the transformation of data from a high-dimensional space into a low-dimensional space so that the...
21 KB (2,248 words) - 07:14, 18 April 2025
Lossy compression (redirect from Lossy data compression)
opposed to lossless data compression (reversible data compression) which does not degrade the data. The amount of data reduction possible using lossy...
26 KB (3,269 words) - 15:09, 11 May 2025
as both data reduction and data complication. Data complication can be described as going beyond the data and asking questions about the data to generate...
60 KB (7,551 words) - 08:32, 25 May 2025
in A? Bit Rate Reduction, an audio compression method Data reduction, simplifying data in order to facilitate analysis Graph reduction, an efficient version...
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Andrew S. C. Ehrenberg (section Data reduction)
marketing scientist. For over half a century, he made contributions to data reduction/analysis and presentation, and to understanding buyer behaviour and...
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the "seven positions"). Andrew Ehrenberg articulated a philosophy of data reduction (see his book of the same name). The Open University course Statistics...
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Redox (redirect from Reduction (chemistry))
Redox (/ˈrɛdɒks/ RED-oks, /ˈriːdɒks/ REE-doks, reduction–oxidation or oxidation–reduction: 150 ) is a type of chemical reaction in which the oxidation...
35 KB (3,434 words) - 10:40, 3 May 2025
Radial velocity (section Data reduction)
relative to the telescope's motion. So an important first step of the data reduction is to remove the contributions of the Earth's elliptic motion around...
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Joseph Gerber (redirect from Gerber Analogue Data Reduction System)
from his early developments of graphical-numerical computing devices, data-reduction tools, and plotters. He was awarded America's National Medal of Technology...
29 KB (3,004 words) - 19:59, 9 March 2025
Permabit Technology Corporation was a private supplier of data reduction solutions to the computer data storage industry. On 31 July 2017 it was announced that...
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dimensionality reduction, also known as manifold learning, is any of various related techniques that aim to project high-dimensional data, potentially existing...
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IRAF (redirect from Image reduction and analysis facility)
Observatory (NOAO) geared towards the reduction of astronomical images and spectra in pixel array form. This is primarily data taken from imaging array detectors...
21 KB (2,383 words) - 20:39, 23 December 2024
shallow structures (<1 um deep), the data reduction is complex. Some of the contributors to the data reduction are Dickey, Schumann and Gardner, Choo...
8 KB (1,090 words) - 17:11, 18 March 2024
Data compression ratio, also known as compression power, is a measurement of the relative reduction in size of data representation produced by a data...
6 KB (854 words) - 23:54, 25 April 2024
Reductionism is any of several related philosophical ideas regarding the associations between phenomena which can be described in terms of simpler or more...
29 KB (3,263 words) - 01:34, 27 April 2025
Hipparcos (redirect from Hipparcos new reduction)
per star throughout the 3.5-year observation period. As part of the data reduction and catalogue production, new variables were identified and designated...
59 KB (6,798 words) - 07:01, 19 March 2025
the MAC family, up to 50% of data reduction was possible in both Stereo and Mono transmission modes. At least with some data transmission systems, duobinary...
7 KB (1,014 words) - 15:23, 21 May 2024
Near-surface geophysics (section Data reduction)
geophysics projects typically have the following elements: data acquisition, data reduction, data processing, modeling, and geological interpretation. This...
19 KB (2,174 words) - 13:12, 7 April 2023
more complex problems. Many reduction operators can be used for broadcasting to distribute data to all processors. A reduction operator can help break down...
20 KB (3,311 words) - 12:21, 9 November 2024
Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort...
41 KB (4,522 words) - 18:04, 23 May 2025
proposal issued in 1950. The Air Force needed three computers to do data reduction for two wind tunnels and an engine test facility. The 1102 was a variant...
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self-referential sentences in formal logic Table diagonalization, a form of data reduction used to make interpretation of tables and charts easier. This disambiguation...
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Digital Compact Cassette or non-Hi-MD MiniDisc, both of which use a lossy data-reduction system. Like most formats of videocassette, a DAT cassette may only...
24 KB (2,975 words) - 05:58, 29 April 2025
Principal component analysis (category Dimension reduction)
linear dimensionality reduction technique with applications in exploratory data analysis, visualization and data preprocessing. The data is linearly transformed...
117 KB (14,851 words) - 02:19, 10 May 2025
his copy of Astronomische Nachrichten show that he was interested in data reduction and computation of orbits. He was elected a member of the American Philosophical...
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image sub-surface features. The data are reduced to images using algorithms similar to tomography. The data reduction methods resemble those of computer-aided...
44 KB (5,542 words) - 08:50, 11 May 2025