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Computational linguistics is an interdisciplinary field concerned with the computational modelling of natural language, as well as the study of appropriate computational approaches to linguistic questions. In general, computational linguistics draws upon linguistics, computer science, artificial intelligence, mathematics, logic, philosophy, cognitive science, cognitive psychology, psycholinguistics, anthropology and neuroscience, among others.
Functional linguistics is an approach to the study of language characterized by taking systematically into account the speaker's and the hearer's side, and the communicative needs of the speaker and of the given language community. Linguistic functionalism spawned in the 1920s to 1930s from Ferdinand de Saussure's systematic structuralist approach to language (1916).
The following outline is provided as an overview and topical guide to linguistics:
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Systemic functional grammar (SFG) is a form of grammatical description originated by Michael Halliday. It is part of a social semiotic approach to language called systemic functional linguistics. In these two terms, systemic refers to the view of language as "a network of systems, or interrelated sets of options for making meaning"; functional refers to Halliday's view that language is as it is because of what it has evolved to do. Thus, what he refers to as the multidimensional architecture of language "reflects the multidimensional nature of human experience and interpersonal relations."
In linguistics, the topic, or theme, of a sentence is what is being talked about, and the comment is what is being said about the topic. This division into old vs. new content is called information structure. It is generally agreed that clauses are divided into topic vs. comment, but in certain cases the boundary between them depends on which specific grammatical theory is being used to analyze the sentence.
Systemic functional linguistics (SFL) is an approach to linguistics, among functional linguistics, that considers language as a social semiotic system.
In systemic functional grammar (SFG), a nominal group is a group of words that represents or describes an entity, for example The nice old English police inspector who was sitting at the table with Mr Morse. Grammatically, the wording "The nice old English police inspector who was sitting at the table with Mr Morse" can be understood as a nominal group, which functions as the subject of the information exchange and as the person being identified as "Mr Morse".
Linguistics is the scientific study of language. The modern-day scientific study of linguistics takes all aspects of language into account — i.e., the cognitive, the social, the cultural, the psychological, the environmental, the biological, the literary, the grammatical, the paleographical, and the structural.
Ruqaiya Hasan was a professor of linguistics who held visiting positions and taught at various universities in England. Her last appointment was at Macquarie University in Sydney, from which she retired as emeritus professor in 1994. Throughout her career she researched and published widely in the areas of verbal art, culture, context and text, text and texture, lexicogrammar and semantic variation. The latter involved the devising of extensive semantic system networks for the analysis of meaning in naturally occurring dialogues.
Lexicogrammar is a term directly related to systemic functional linguistics. Systemic functional linguistics is a specific approach to adding as much detail as possible when describing lexicogrammar. It was coined by Michael Halliday, the father of systemic functional linguistics, to describe the continuity between grammar and lexis. For many linguists, these phenomena are discrete. But Halliday brings them together with this term. As with other dimensions of Halliday's theory, he describes the relation of grammar to lexis as one of a 'cline', and therefore, one of 'delicacy'. In 1961, he wrote 'The grammarian's dream is...to turn the whole of linguistic form into grammar, hoping to show that lexis can be defined as "most delicate grammar". In 1987, Ruqaiya Hasan wrote an article titled 'The grammarian's dream: lexis as delicate grammar', in which she laid out a methodology for mapping lexis in Halliday's terms.
James Robert Martin is a Canadian linguist. He is Professor of Linguistics at The University of Sydney. He is the leading figure in the 'Sydney School' of systemic functional linguistics. Martin is well known for his work on discourse analysis, genre, appraisal, multimodality and educational linguistics.
Christian Matthias Ingemar Martin Matthiessen is a Swedish-born linguist and a leading figure in the systemic functional linguistics (SFL) school, having authored or co-authored more than 100 books, refereed journal articles, and papers in refereed conference proceedings, with contributions to three television programs. One of his major works is Lexicogrammatical cartography (1995), a 700-page study of the grammatical systems of English from the perspective of SFL. He has co-authored a number of books with Michael Halliday. Since 2008 he has been a professor in the Department of English at the Hong Kong Polytechnic University. Before this, he was Chair of the Department of Linguistics at Macquarie University in Sydney.
The term metafunction originates in systemic functional linguistics and is considered to be a property of all languages. Systemic functional linguistics is functional and semantic rather than formal and syntactic in its orientation. As a functional linguistic theory, it claims that both the emergence of grammar and the particular forms that grammars take should be explained "in terms of the functions that language evolved to serve". While languages vary in how and what they do, and what humans do with them in the contexts of human cultural practice, all languages are considered to be shaped and organised in relation to three functions, or metafunctions. Michael Halliday, the founder of systemic functional linguistics, calls these three functions the ideational, interpersonal, and textual. The ideational function is further divided into the experiential and logical.
The cline of instantiation is a concept in systemic functional linguistics theory. Alongside stratification and metafunction, it is one of the global semiotic dimensions that define the organization of language in context.
The idea of language as a linguistic system appears in the linguistic theory of Ferdinand de Saussure, J.R. Firth, Benjamin Lee Whorf, Louis Hjelmslev, and Michael Halliday.
Frances Helen Christie, is Emeritus professor of language and literacy education at the University of Melbourne, and honorary professor of education at the University of Sydney. She specialises in the field of systemic functional linguistics (SFL) and has completed research in language and literacy education, writing development, pedagogic grammar, genre theory, and teaching English as a mother tongue and as a second language.
Suzanne Eggins is an Australian linguist who is an Honorary Fellow at Australian National University (ANU), associated with the ANU Institute for Communication in Health Care. Eggins is the author of a best selling introduction to systemic functional linguistics and she is known for her extensive work on critical linguistic analysis of spontaneous interactions in informal and institutional healthcare settings.
Mary J. Schleppegrell is an applied linguist and Professor of Education at the University of Michigan. Her research and praxis are based on the principles of Systemic Functional Linguistics (SFL), a theory derived from the work of social semiotic linguist Michael Halliday. Schleppegrell is known for the SFL-based literacy practices she has continuously helped to develop for multilingual and English language learners throughout her decades long career, which she began as an educational specialist before transitioning to the field of applied linguistics. As a result, her publications demonstrate a deep understanding of both the theories and practices related to teaching and learning.
In linguistics, stratification is the idea that language is organized in terms of hierarchically ordered strata. This notion can be traced back to Saussure's dichotomy between signified and signifier and Hjelmslev's expression plane and content plane, but has been explicictly explored as a theoretical concept in stratificational linguistics and systemic functional linguistics.
References
- ↑ Andersen, Thomas Hestbaek; Boeriis, Morten; Maagerø, Eva; Tonnessen, Elise Seip (27 March 2015). Social Semiotics: Key Figures, New Directions. Routledge. ISBN 978-1-317-44786-3.
- ↑ Huang, Guowen; Fontaine, Lise; Tucker, Gordon H.; McDonald, Edward (2020). Approaches to Systemic Functional Grammar: Convergence and Divergence. Equinox Publishing Limited. ISBN 978-1-78179-686-3.
- ↑ "What is a Systemic Functional Grammar, and how does it work? A description and an interactive demonstration". Halliday Centre for Intelligent Applications of Language Studies. 2011. Retrieved 7 January 2022.
- ↑ Johansson, Stig; Stenström, Anna-Brita (25 August 2011). English Computer Corpora: Selected Papers and Research Guide. Walter de Gruyter. ISBN 978-3-11-086596-7.
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