descriptor


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Related to descriptor: Deployment Descriptor, File descriptor

descriptor

[di′skrip·tər]
(computer science)
A word or phrase used to identify a document in a computer-based information storage and retrieval system.

descriptor

(operating system)
An integer, string or other small data value which refers to one of several objects allocated to a program by the operating system, usually the kernel. A common example is a Unix file descriptor which is a small integer that identifies an I/O channel. Another example is a reference to an area of memory (e.g. shared memory).

Compare capability.

descriptor

(1) A word or phrase that identifies a document in an indexed information retrieval system.

(2) A category name used to identify data.
References in periodicals archive ?
Furthermore, if the derivative of the state x(t) (or the output y(t)) is accessible during the control process, a proportional and derivative state feedback (PDSF) (or proportional and derivative output feedback (PDOF)) controller can be equipped to stabilize the closed-loop descriptor systems [32-37].
Burnt/Smoky--This odor and flavor descriptor is similar to that found in burnt food.
The vanillin and cis-methyl-octalactone could be regarded as direct contributors and/or possible enhancers of this descriptor.
In this category, (Steder & Rusu 2010) introduced the NARF descriptor (Normal Aligned Radial Feature).
Exploitation of the embedding method allows the immediate construction of visual vocabularies of a database without to compare descriptor vectors of database with them, significantly reducing construction time.
At the initial stage of work for all molecules simplex descriptors are calculated (about 2 thousands), they are weighted for the mixtures according to the molar concentration of the mixture components.
The platform provides an application that allows the user to specify the URI of the service descriptor he/she intends to annotate; the platform retrieves the descriptor by issuing an HTTP request to the supplied URI, starting then the process of semantic annotation.
The image descriptor is a so called local descriptor, computed not for the entire image, but only for selected keypoints in the image.
The optimized geometries along with the molecular orbital and vibrational frequency information were be used to calculate over 400 molecular descriptors containing constitutional, topological, geometrical, charge-related, semi empirical and thermo-dynamical descriptors using CODESSA software [16].
2009b) also proposed to compress the SIFT descriptor with Karhunen-Loeve transform, yielding approximate 2 bits per SIFT dimension.
The third descriptor (SpMax4_Bh (e)) has a low correlation and high distribution for all molecules (Fig 5).
In this region, the previous procedure is repeated changing only the geometrical descriptor adopted.