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What (who) is hierarchical$35179$ - definition

TREE-LIKE DATABASE MODEL

Hierarchical database; Hierarchical data model; List of hierarchical database management systems; Tree database; Hierarchical database management system; Hierarchical models; Hierarchical data; Hierarchical model

Hierarchical clustering

METHOD OF CLUSTER ANALYSIS WHICH SEEKS TO BUILD A HIERARCHY OF CLUSTERS

Hierarchical Clustering; Agglomerative hierarchical clustering; Hierarchical Cluster Analysis; Hierarchical cluster analysis; SLINK; Agglomerative clustering; Divisive clustering; Hierarchical agglomerative clustering

In data mining and statistics, hierarchical clustering (also called hierarchical cluster analysis or HCA) is a method of cluster analysis that seeks to build a hierarchy of clusters. Strategies for hierarchical clustering generally fall into two categories:

https://en.wikipedia.org/wiki/Hierarchical_clustering

Hierarchical fair-service curve

NETWORK SCHEDULING ALGORITHM FOR A NETWORK SCHEDULER

Hierarchical Fair Service Curve

The hierarchical fair-service curve (HFSC) is a network scheduling algorithm for a network scheduler proposed by Ion Stoica, Hui Zhang and T. S.

https://en.wikipedia.org/wiki/Hierarchical_fair-service_curve

Model of hierarchical complexity

INFORMATION SCIENCE FRAMEWORK FOR SCORING HOW COMPLEX A BEHAVIOR IS BASED ON MATHEMATICAL PRINCIPLES FOR HOW THE INFORMATION IS ORGANIZED.

Model of Hierarchical Complexity; Hierarchical complexity

The model of hierarchical complexity (MHC) is a framework for scoring how complex a behavior is, such as verbal reasoning or other cognitive tasks.Robinson, 2013 It quantifies the order of hierarchical complexity of a task based on mathematical principles of how the information is organized, in terms of information science.

https://en.wikipedia.org/wiki/Model_of_hierarchical_complexity

Wikipedia

Hierarchical database model

A hierarchical database model is a data model in which the data are organized into a tree-like structure. The data are stored as records which are connected to one another through links. A record is a collection of fields, with each field containing only one value. The type of a record defines which fields the record contains.

The hierarchical database model mandates that each child record has only one parent, whereas each parent record can have one or more child records. In order to retrieve data from a hierarchical database, the whole tree needs to be traversed starting from the root node. This model is recognized as the first database model created by IBM in the 1960s.

https://en.wikipedia.org/wiki/Hierarchical database model