descriptor – מילון אנגלי-אנגלי
descriptor
n.
(in database management) key word used to identify sort and unite data records
Descriptor
Descriptor may refer to:
- Data descriptor, a software or hardware structure describing data
- File descriptor, an abstract key for accessing a file
- Molecular descriptor, which helps characterize a chemical compound
- Visual descriptors, a representation of visual features in image or video
- Security descriptor, a Windows data structure containing security information
- Segment descriptor, used for memory addressing in x86 computer architectures
- Short Payment Descriptor, a compact data format for an easy exchange of a payment information using modern electronic channels
- Index term, also known as a "descriptor" in information retrieval
- Epithet, a descriptive term (word or phrase), accompanying or occurring in place of a name and having entered common usage
- An identifier
descriptor
Noun
1. the phonological or orthographic sound or appearance of a word that can be used to describe or identify something; "the inflected forms of a word can be represented by a stem and a list of inflections to be attached"
(synonym) form, word form, signifier
(hypernym) word
(hyponym) plural, plural form
(classification) linguistics
2. a piece of stored information that is used to identify an item in an information storage and retrieval system
(hypernym) information
(classification) computer science, computing
descriptor
N M
describer| delineator
descriptor
(n.) = descriptor ; descriptor term ; epithet ; index term ; subject term ; catchword ; subject description ; index word.
Ex: Descriptors are terms which are acceptable for use in indexes to describe concepts.
Ex: The MEDLINE thesaurus, available online and ondisc, provides a complete list of all descriptor terms (i.e. the controlled vocabulary used in the subject indexing of all Medline citations).
Ex: He also allows Christian names accompanied by an epithet (Aunt Jane, for example) to be used as headings for the main entry.
Ex: This access is achieved by organising the tools so that a user may search under a specific access point or heading or index term, for example, subject term, author, name, title, date.
Ex: In alphabetical indexing languages, such as are embodied in thesauri and subject headings lists, subject terms are the alphabetical names of the subjects.
Ex: These summaries are a valuable aid to classification by ensuring that the classifier finds the correct discipline rather than a catchword in the index.
Ex: During searching the index user is expected to formulate headings in the same way, and hopefully to match his subject description with the indexer's description.
Ex: The Permuterm index (as featured in Science, and Social Sciences Citation Indexes) is similar to a Double-KWIC index in that it provides for simple coordination of index words.
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* búsqueda por descriptores = descriptor searching.
* descriptor auxiliar = auxiliary descriptor.
* descriptor compuesto = multi-word descriptor.
* descriptor compuesto de varias palabras = multiple-word descriptor.
* descriptor del contenido = content descriptor.
* descriptor de materia = subject descriptor.
* descriptor principal = major descriptor.
* descriptor propuesto = candidate descriptor.
* descriptor secundario = minor descriptor.
* indización por descriptores = descriptor indexing.
* lista de descriptores = index vocabulary ; subject vocabulary.
* materia representada por un solo descriptor = one-concept subject.
* materia representada por varios descriptores = multi-concept subject.
* no descriptor = non-descriptor.
