Data Record Attribute
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A Data Record Attribute is a 2-tuple composed of a data attribute value and a metadata record that represents a single item property of a data record.
- AKA: Record Attribute, Tuple Attribute, Data Characteristic.
- Context:
- It can range from being, depending on whether it has a data attribute value, from being a Populated Data Record Attribute to being an Unpopulated Data Record Attribute.
- It can be associated to a Data Record Set Attribute.
- It can range, depending on the attribute type, from being binary, categorical, ordinal, to being numerical.
- It can be:
- an Interval Attribute.
- a Ratio Attribute.
- a Text Data Attribute.
- a Reference Data Attribute, such as a Concept Reference Data Attribute.
- It can be:
- created by a Create Operation.
- updated by an Update Operation, e.g. 1) the value of the weight attribute is updated to [math]\displaystyle{ x }[/math], 2) the name of the weight attribute is now y.
- deleted by an Delete Operation, e.g. the weight attribute is deleted.
- It can be implemented as a column in a Database Table.
- It can contain information that describes an Item at a certain point in time (the Item's state). I.e. They are things we need to know about an entity.
- It can be associated to a Data Quality Metric.
- It can be a Learning Record Attribute, such as a Target Attribute.
- …
- Example(s):
- (
Name.First
, “Michael”), from a Person Record such as:[Name.First="Michael", Name.Last="Jackson"]
. - (
Publication.Title
, "The Oxford Handbook of Computational Linguistics), from a Citation Record. - (
Synonym
,"...”), from a WordNet Record. - …
- (
- Counter-Example(s):
- a Program Data Object, such as a Program Variable or a Data Structure.
- a Data Record Attribute Value.
- a Concept Property.
- See: Data Model.
References
2009
- Quote: A data attribute describes the value found in each field in a table. Every field or column in a database table represents a single attribute of that table. (An attribute is what the data in that field represents, while the value is the actual data that a specific field contains.
- Quote: An attribute is a piece of information that needs to be known about the objects in a class. Each object might a have different value for an attribute. E.g. one dog is named Fido, the other is named Bowser.
- Quote: An attribute is an abstraction belonging to or characteristic of an entity.
- Quote: Attributes are part of a class declaration in UML. Objects are associated with attribute values describing properties of the object. An attribute has a name and a type specifying the domain of attribute values.
- Quote: Characteristics or objects closely associated with or that belong to people or things.
2005
- (Woodley, 2005b) ⇒ Mary S. Woodley, Gail Clement, and Pete Winn. (2005). “DCMI Glossary." Dublin Core Metadata Initiative.
- Property.
- A property is a specific aspect, characteristic, attribute, or relation used to describe a resource. Dublin Core metadata elements are properties http://dublincore.org/documents/2003/04/02/dc-xml-guidelines/
- Property.
2000
- (Witten & Frank, 2000) ⇒ Ian H. Witten, and Eibe Frank. (2000). “Data Mining: Practical Machine Learning Tools and Techniques with Java implementations." Morgan Kaufmann.
1998
- (Kohavi & Provost, 1998) ⇒ Ron Kohavi, and Foster Provost. (1998). “Glossary of Terms.” In: Machine Leanring 30(2-3).
- Attribute (field, variable, feature): A quantity describing an instance. An attribute has a domain defined by the attribute type, which denotes the values that can be taken by an attribute. The following domain types are common: