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n. Computers
A word, phrase, or alphanumeric character used to identify an item in an information storage and retrieval system.

[Late Latin dēscrīptor, describer, from Latin dēscrībere, dēscrīpt-, to describe; see describe.]


a word or phrase which constitutes the descriptive element of a sentencea keyword assigned to a data-file and stored in a search index so that it can be located through a search engine or in a database


(dɪˈskrɪp tər)

a significant term used to categorize or locate material in an index or information retrieval system.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.descriptor - 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"
linguistics - the scientific study of language
word - a unit of language that native speakers can identify; "words are the blocks from which sentences are made"; "he hardly said ten words all morning"
plural, plural form - the form of a word that is used to denote more than one
singular, singular form - the form of a word that is used to denote a singleton
ghost word - a word form that has entered the language through the perpetuation of an error
root word, stem, root, theme, radical, base - (linguistics) the form of a word after all affixes are removed; "thematic vowels are part of the stem"
etymon, root - a simple form inferred as the common basis from which related words in several languages can be derived by linguistic processes
citation form, entry word, main entry word - the form of a word that heads a lexical entry and is alphabetized in a dictionary
abbreviation - a shortened form of a word or phrase
acronym - a word formed from the initial letters of the several words in the name
2.descriptor - a piece of stored information that is used to identify an item in an information storage and retrieval system
information - knowledge acquired through study or experience or instruction
computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures
References in periodicals archive ?
In other words, the learner is to generalize from the training query instances in order to produce compact and effective descriptors in new queries.
Global feature about color, texture, or high level descriptors such as Scale Invariant Feature Transform (SIFT) are generated from key-frames.
The application was optimized to obtain an SVM model to predict the biological activity EC50 of the HEPT derivatives with a minimum number of descriptors (SpMax4_Bh (e) MLOGP MATS5m) and high values of R2 and Q2 (0.
Then, information coming from geometrical descriptors are exploited to feed the unsupervised D-MST clustering algorithm for discriminating individuals according to the presence/absence of the pathology.
2011) analyzed four castor been cultivars (EBDA MPA 17, Sipeal 28, BRS 188 Paraguacu, and BRS 149 Nordestina) over two crop years in the Reconcavo Baiano region and showed that most of the variability for the descriptors was due to environmental factors stemming from different climatic conditions between the two crop years analyzed, which indicated that the genotypes had the flexibility necessary to adapt to climatic fluctuations.
3) The expression descriptors should have good performance for a reasonable feature size and low computational cost.
The computer will be able to look through a number of provided descriptors while analyzing a picture and apply said descriptors or a combination of them onto certain objects that it detects, such as a gray laptop or a red and black watch on a white table.
In this article, yielded information related to the table preparation for coffee cupping, sample preparation, flavor analysis, fragrance analysis and aroma analysis, as well as various descriptors are used to note the aroma, taste and mouth feel during coffee cupping.
Sauvageot observed either positive correlation between czs-whisky-lactone and sensory descriptors such as toasty, coconut, woody, vanilla, or negative ones with pharmaceutical, hay and clove in a study of Pinot Noir wine.
Those able to identify correct descriptors were more likely to be older (37 years vs.
The system employs 3D feature descriptors as well as geometrical information to feed our classifier engine.
They discuss QSAR principles and tools; novel descriptors, including extended topochemical atom indices and their application to quantitative structure-activity/property/toxicity studies, multivariate image analysis descriptors for QSAR as applied to trypanosomiasis, and conceptual density functional theory-based descriptors; the role of applicability domain of QSAR models; applications to modeling antioxidants; and the modeling of drug candidates, including studies of bacterial efflux pump inhibitors, methods for tuberculosis, applications to hepatitis C inhibitors and cholinesterase inhibitors for the treatment of Alzheimer's disease, and the design of nonsteroidal aromatase inhibitors using QSAR and receptor-based approaches for breast cancer.