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A lexical database is a lexical resource which has an associated software environment database which permits access to its contents. The database may be custom-designed for the lexical information or a general-purpose database into which lexical information has been entered.
Language resource management – Lexical markup framework (LMF; ISO 24613), produced by ISO/TC 37, is the ISO standard for natural language processing (NLP) and machine-readable dictionary (MRD) lexicons. [1] The scope is standardization of principles and methods relating to language resources in the contexts of multilingual communication.
In a narrower sense, language resource is specifically applied to resources that are available in digital form, and then, "encompassing (a) data sets (textual, multimodal/multimedia and lexical data, grammars, language models, etc.) in machine readable form, and (b) tools/technologies/services used for their processing and management". [1]
Example entry "Hamburger" in WordNet. The database contains 155,327 words organized in 175,979 synsets for a total of 207,016 word-sense pairs; in compressed form, it is about 12 megabytes in size. [6] It includes the lexical categories nouns, verbs, adjectives and adverbs but ignores prepositions, determiners and other function words.
FrameNet is a group of online lexical databases based upon the theory of meaning known as Frame semantics, developed by linguist Charles J. Fillmore.The project's fundamental notion is simple: most words' meanings may be best understood in terms of a semantic frame, which is a description of a certain kind of event, connection, or item and its actors.
UBY-LMF [3] [4] is a format for standardizing lexical resources for Natural Language Processing (NLP). [5] UBY-LMF conforms to the ISO standard for lexicons: LMF, designed within the ISO-TC37, and constitutes a so-called serialization of this abstract standard. [6]
The Moby Project is a collection of public-domain lexical resources created by Grady Ward. The resources were dedicated to the public domain, and are now mirrored at Project Gutenberg . As of 2007 [update] , it contains the largest free phonetic database, with 177,267 words and corresponding pronunciations.
OntoLex-Lemon is widely used for lexical resources in the context of Linguistic Linked Open Data.Selected applications include OASIS Lexicographic Infrastructure Data Model and API (LEXIDMA), a framework for internationally interoperable lexicographic work [14]