Reduction Data Elements - significado y definición. Qué es Reduction Data Elements
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Qué (quién) es Reduction Data Elements - definición

ATOMIC UNIT OF DATA THAT HAS PRECISE MEANING OR PRECISE SEMANTICS
Data Element; Data elements

List of data references for chemical elements         
WIKIMEDIA LIST ARTICLE
Wikipedia:WikiProject Elements/Chemical elements data references; Chemical elements data references
The List of data references for chemical elements is divided into datasheets that give values for many properties of the elements, together with various references. Each datasheet is sequenced by atomic number.
Data element         
In metadata, the term data element is an atomic unit of data that has precise meaning or precise semantics. A data element has:
Dimensionality reduction         
  • A visual depiction of the resulting LDA projection for a set of 2D points.
  • A visual depiction of the resulting PCA projection for a set of 2D points.
PROCESS OF REDUCING THE NUMBER OF RANDOM VARIABLES UNDER CONSIDERATION
Dimension reduction; Dimensionality Reduction; Dimensionality reduction algorithm; Linear dimensionality reduction
Dimensionality reduction, or dimension reduction, is the transformation of data from a high-dimensional space into a low-dimensional space so that the low-dimensional representation retains some meaningful properties of the original data, ideally close to its intrinsic dimension. Working in high-dimensional spaces can be undesirable for many reasons; raw data are often sparse as a consequence of the curse of dimensionality, and analyzing the data is usually computationally intractable (hard to control or deal with).

Wikipedia

Data element

In metadata, the term data element is an atomic unit of data that has precise meaning or precise semantics. A data element has:

  1. An identification such as a data element name
  2. A clear data element definition
  3. One or more representation terms
  4. Optional enumerated values Code (metadata)
  5. A list of synonyms to data elements in other metadata registries Synonym ring

Data elements usage can be discovered by inspection of software applications or application data files through a process of manual or automated Application Discovery and Understanding. Once data elements are discovered they can be registered in a metadata registry.

In telecommunication, the term data element has the following components:

  1. A named unit of data that, in some contexts, is considered indivisible and in other contexts may consist of data items.
  2. A named identifier of each of the entities and their attributes that are represented in a database.
  3. A basic unit of information built on standard structures having a unique meaning and distinct units or values.
  4. In electronic record-keeping, a combination of characters or bytes referring to one separate item of information, such as name, address, or age.

In the areas of databases and data systems more generally a data element is a concept forming part of a data model. As an element of data representation, a collection of data elements forms a data structure.