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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.
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 ...
Protein purification is a series of processes intended to isolate one or a few proteins from a complex mixture, usually cells, tissues or whole organisms. Protein purification is vital for the specification of the function, structure and interactions of the protein of interest. The purification process may separate the protein and non-protein ...
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 ...
Web scraping. Web scraping, web harvesting, or web data extraction is data scraping used for extracting data from websites. [ 1] Web scraping software may directly access the World Wide Web using the Hypertext Transfer Protocol or a web browser. While web scraping can be done manually by a software user, the term typically refers to automated ...
Devan McGuinness. July 28, 2024 at 4:02 PM. Shutterstock. Gizmo is a small Chihuahua who went through quite an ordeal after going missing from his family home, only to be found safe and alive nine ...
Liquid–liquid extraction, also known as solvent extraction and partitioning, is a method to separate compounds or metal complexes, based on their relative solubilities in two different immiscible liquids, usually water (polar) and an organic solvent (non-polar). There is a net transfer of one or more species from one liquid into another ...
Information extraction. Information extraction ( IE) is the task of automatically extracting structured information from unstructured and/or semi-structured machine-readable documents and other electronically represented sources. Typically, this involves processing human language texts by means of natural language processing (NLP). [1]