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Lexical Diversity
Lexical diversity is one aspect of 'lexical richness' and refers to the ratio of different unique word stems (types) to the total number of words ( tokens). The term is used in applied linguistics and is quantitatively calculated using numerous different measures including Type-Token Ratio (TTR), vocd, and the measure of textual lexical diversity (MTLD). A common problem with lexical diversity measures, especially TTR, is that text samples containing large number of tokens give lower values for TTR since it is often necessary for the writer or speaker to re-use several function words In linguistics, function words (also called functors) are words that have little lexical meaning or have ambiguous meaning and express grammatical relationships among other words within a sentence, or specify the attitude or mood of the speaker. .... One consequence of this is that lexical diversity is better used for comparing texts of equal length. Newer measures of lexical diversity attempt to a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Applied Linguistics
Applied linguistics is an interdisciplinary field which identifies, investigates, and offers solutions to language-related real-life problems. Some of the academic fields related to applied linguistics are education, psychology, communication research, information science, natural language processing, anthropology, and sociology. Domain Applied linguistics is an interdisciplinary field. Major branches of applied linguistics include bilingualism and multilingualism, conversation analysis, contrastive linguistics, language assessment, literacies, discourse analysis, language pedagogy, second language acquisition, language planning and policy, interlinguistics, stylistics, language teacher education, forensic linguistics, and translation. Journals Major journals of the field include ''Research Methods in Applied Linguistics'', ''Annual Review of Applied Linguistics'', ''Applied Linguistics'', Studies in Second Language Acquisition, ''Applied Psycholinguistics'', ''Internat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Function Words
In linguistics, function words (also called functors) are words that have little lexical meaning or have ambiguous meaning and express grammatical relationships among other words within a sentence, or specify the attitude or mood of the speaker. They signal the structural relationships that words have to one another and are the glue that holds sentences together. Thus they form important elements in the structures of sentences. Words that are not function words are called ''content words'' (or open class words, ''lexical words,'' or ''autosemantic words'') and include nouns, most verbs, adjectives, and most adverbs although some adverbs are function words (like ''then'' and ''why''). Dictionaries define the specific meanings of content words but can describe only the general usages of function words. By contrast, grammars describe the use of function words in detail but treat lexical words only in general terms. Since it was first proposed in 1952 by C. C. Fries, the distinguish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scott Jarvis
Scott Jarvis (born 1966) is an American linguist. He is a professor of Linguistics at the University of Utah, United States. His research focuses on second language acquisition more broadly, with a special focus on lexical diversity. Career Jarvis obtained his Bachelor of Arts degree in linguistics at Brigham Young University in 1991. He obtained a Master of Arts degree in applied linguistics at Indiana University in 1993. In 1997 he was awarded with the Doctor of Philosophy degree in linguistics at Indiana University. Between 2001 and 2002 he was the Chair of the Research Interest Section for TESOL. Jarvis was an associate hournal editor between 2007 and 2011, a board member and associate executive director between 2011 and 2015 and has been executive editor for ''Language Learning''. He was the Executive Committee Member for American Association for Applied Linguistics between 2014 and 2016. Research Jarvis is noted for his contribution on lexical diversity. He claimed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British National Corpus
The British National Corpus (BNC) is a 100-million-word text corpus of samples of written and spoken English from a wide range of sources. The corpus covers British English of the late 20th century from a wide variety of genres, with the intention that it be a representative sample of spoken and written British English of that time. It is used in corpus linguistic for analysis of corpora History The project to create the BNC involved the collaboration of three publishers (with the Oxford University Press as the lead collaborator, Longman and W. & R. Chambers), two universities (the University of Oxford and Lancaster University), and the British Library. The creation of the BNC started in 1991 under the management of the BNC consortium, and the project was finished by 1994. There have been no additions of new samples after 1994, but the BNC underwent slight revisions before the release of the second edition BNC World (2001) and the third edition BNC XML Edition (2007). [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latent Semantic Analysis
Latent semantic analysis (LSA) is a technique in natural language processing, in particular distributional semantics, of analyzing relationships between a set of documents and the terms they contain by producing a set of concepts related to the documents and terms. LSA assumes that words that are close in meaning will occur in similar pieces of text (the distributional hypothesis). A matrix containing word counts per document (rows represent unique words and columns represent each document) is constructed from a large piece of text and a mathematical technique called singular value decomposition (SVD) is used to reduce the number of rows while preserving the similarity structure among columns. Documents are then compared by cosine similarity between any two columns. Values close to 1 represent very similar documents while values close to 0 represent very dissimilar documents. An information retrieval technique using latent semantic structure was patented in 1988US Patent 4,83 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
