What (who) is Hierarchical Data Format - definition

FILE FORMAT

HDF5; HDF-EOS; HDF4; Hierarchical data format; Hdf5; .h5; .hdf; .h4; .hdf4; .he2; .hdf5; .he5

Hierarchical Data Format

<file format, data> (HDF) A library and multi-object file format for the transfer of graphical and numerical data between computeres. The freely available HDF distribution consists of the library, command line utilities, test suite source, Java interface, and the Java-based HDF Viewer (JHV). HDF supports several different data models, including multidimensional arrays, raster images, and tables. Each defines a specific aggregate data type and provides an API for reading, writing, and organising the data and metadata. New data models can be added by the HDF developers or users. HDF is self-describing, allowing an application to interpret the structure and contents of a file without any outside information. One HDF file can hold a mixture of related objects which can be accessed as a group or as individual objects. Users can create their own grouping structures called "vgroups". HDF files can be shared across most common platforms, including many workstations and high performance computers. An HDF file created on one computer can be read on a different system without modification. http://hdf.ncsa.uiuc.edu/. (2001-07-02)

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

format

DOS, WINDOWS, OR OS/2 COMMAND FOR FORMATTING A COMPUTER DISK

FORMAT; FORMAT (DOS command); FORMAT (OS/2 command); FORMAT (Windows command); FORMAT (command); FORMAT.COM

(formats, formatting, formatted)

The format of something is the way or order in which it is arranged and presented.

I had met with him to explain the format of the programme and what we had in mind.

...a large-format book.

N-COUNT

The format of a piece of computer software or a musical recording is the type of equipment on which it is designed to be used or played. For example, possible formats for a musical recording are CD and cassette.

His latest album is available on all formats.

N-COUNT

To format a computer disk means to run a program so that the disk can be written on. (COMPUTING)

VERB: V n

To format a piece of computer text or graphics means to arrange the way in which it appears when it is printed or is displayed on a screen. (COMPUTING)

When text is saved from a Web page, it is often very badly formatted with many short lines.

VERB: V n

Wikipedia

Hierarchical Data Format

Hierarchical Data Format (HDF) is a set of file formats (HDF4, HDF5) designed to store and organize large amounts of data. Originally developed at the U.S. National Center for Supercomputing Applications, it is supported by The HDF Group, a non-profit corporation whose mission is to ensure continued development of HDF5 technologies and the continued accessibility of data stored in HDF.

In keeping with this goal, the HDF libraries and associated tools are available under a liberal, BSD-like license for general use. HDF is supported by many commercial and non-commercial software platforms and programming languages. The freely available HDF distribution consists of the library, command-line utilities, test suite source, Java interface, and the Java-based HDF Viewer (HDFView).

The current version, HDF5, differs significantly in design and API from the major legacy version HDF4.

https://en.wikipedia.org/wiki/Hierarchical Data Format