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Part-of-speech tagging. In corpus linguistics, part-of-speech tagging ( POS tagging or PoS tagging or POST ), also called grammatical tagging is the process of marking up a word in a text (corpus) as corresponding to a particular part of speech, [1] based on both its definition and its context . A simplified form of this is commonly taught to ...
Named-entity recognition (NER) (also known as (named) entity identification, entity chunking, and entity extraction) is a subtask of information extraction that seeks to locate and classify named entities mentioned in unstructured text into pre-defined categories such as person names, organizations, locations, medical codes, time expressions, quantities, monetary values, percentages, etc.
FLAG-tag. FLAG-tag, or FLAG octapeptide, or FLAG epitope, is a peptide protein tag that can be added to a protein using recombinant DNA technology, having the sequence DYKDDDDK (where D= aspartic acid, Y= tyrosine, and K= lysine ). [1] It is one of the most specific tags [2] and it is an artificial antigen to which specific, high affinity ...
Extractor (firearms) A view of the break-action of a typical double-barrelled shotgun, with the action open and the scalloped triangularly shaped extractor visible at the base of the two barrels. The opening lever and the safety catch are visible. In breechloading firearms, an extractor is an action component that serves to remove spent casings ...
Sketch Engine is a corpus manager and text analysis software developed by Lexical Computing since 2003. Its purpose is to enable people studying language behaviour ( lexicographers, researchers in corpus linguistics, translators or language learners) to search large text collections according to complex and linguistically motivated queries.
Isobaric labeling is a mass spectrometry strategy used in quantitative proteomics. Peptides or proteins are labeled with chemical groups that have (at least nominally) identical mass (isobaric), but vary in terms of distribution of heavy isotopes in their structure. These tags, commonly referred to as tandem mass tags, are designed so that the ...
Vorbis comment. A Vorbis comment is a metadata container used in the Vorbis, FLAC, Theora, Speex and Opus file formats. [1] It allows information such as the title, artist, album, track number or other information about the file to be added to the file itself. However, as the official Ogg Vorbis documentation notes, “ [the comment header] is ...
Keyword extraction is tasked with the automatic identification of terms that best describe the subject of a document. [1] [2] Key phrases , key terms , key segments or just keywords are the terminology which is used for defining the terms that represent the most relevant information contained in the document.