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Left-branching
In linguistics, branching refers to the shape of the parse trees that represent the structure of sentences. Assuming that the language is being written or transcribed from left to right, parse trees that grow down and to the right are ''right-branching'', and parse trees that grow down and to the left are ''left-branching''. The direction of branching reflects the position of heads in phrases, and in this regard, right-branching structures are ''head-initial'', whereas left-branching structures are ''head-final''. English has both right-branching (head-initial) and left-branching (head-final) structures, although it is more right-branching than left-branching. Some languages such as Japanese and Turkish are almost fully left-branching (head-final). Some languages are mostly right-branching (head-initial). Examples Languages typically construct phrases with a head word (or nucleus) and zero or more ''dependents'' (modifiers). The following phrases show the phrase heads in bold. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northwest Caucasian Languages
The Northwest Caucasian languages, also called West Caucasian, Abkhazo-Adyghean, Abkhazo-Circassian, Circassic, or sometimes Pontic languages (from Ancient Greek, ''pontos'', referring to the Black Sea, in contrast to the Northeast Caucasian languages as the ''Caspian languages''), is a family of languages spoken in the northwestern Caucasus region,Hoiberg, Dale H. (2010) chiefly in three Russian republics ( Adygea, Kabardino-Balkaria, Karachay–Cherkessia), the disputed territory of Abkhazia, Georgia, and Turkey, with smaller communities scattered throughout the Middle East. The group's relationship to any other language family is uncertain and unproven. One language, Ubykh, became extinct in 1992, while all of the other languages are in some form of endangerment, with UNESCO classifying all as either "vulnerable", "endangered", or "severely endangered". The Northwest Caucasian languages possess highly complex sets of consonant distinctions paired with a lack of vo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Head (linguistics)
In linguistics, the head or nucleus of a phrase is the word that determines the syntax, syntactic category of that phrase. For example, the head of the noun phrase "boiling hot water" is the noun (head noun) "water". Analogously, the head of a compound (linguistics), compound is the word stem, stem that determines the semantic category of that compound. For example, the head of the compound noun "handbag" is "bag", since a handbag is a bag, not a hand. The other elements of the phrase or compound Grammatical modifier, modify the head, and are therefore the head's ''dependent (grammar), dependents''. Headed phrases and compounds are called ''endocentric'', whereas ''exocentric'' ("headless") phrases and compounds (if they exist) lack a clear head. Heads are crucial to establishing the direction of branching (linguistics), branching. Head-initial phrases are right-branching, head-final phrases are left-branching, and head-medial phrases combine left- and right-branching. Basic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Head-initial
In linguistics, head directionality is a proposed Principles and parameters, parameter that classifies languages according to whether they are head-initial (the head (linguistics), head of a phrase precedes its Complement (linguistics), complements) or head-final (the head follows its complements). The Head (linguistics), head is the element that determines the category of a phrase: for example, in a verb phrase, the head is a verb. Therefore, head initial would be Verb–object word order, "VO" languages and head final would be Object–verb word order, "OV" languages. Some languages are consistently head-initial or head-final at all phrasal levels. English grammar, English is considered to be mainly head-initial (verbs precede their objects, for example), while Japanese grammar, Japanese is an example of a language that is consistently head-final. In certain other languages, such as German language, German and Gbe languages, Gbe, examples of both types of head directionality occu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X-bar Theory
In linguistics, X-bar theory is a model of phrase structure and a theory of syntactic category formation that proposes a universal schema for how phrases are organized. It suggests that all phrases share a common underlying structure, regardless of their specific category (noun phrase, verb phrase, etc.). This structure, known as the X-bar schema, is based on the idea that every phrase (XP, X phrase) has a Head (linguistics), head, which determines the type (syntactic category) of the phrase (X). The theory was first proposed by Noam Chomsky in 1970Chomsky, Noam (1970). Remarks on Nominalization. In: R. Jacobs and P. Rosenbaum (eds.) ''Reading in English Transformational Grammar'', 184–221. Waltham: Ginn. reformulating the ideas of Zellig Harris (1951), and further developed by Ray Jackendoff (1974, 1977a, 1977bJackendoff, Ray (1977b) Constraints on Phrase Structure Rules, in P. W. Culicover, T. Wasow & A. Akmajian (eds.), ''Formal Syntax'', Academic Press, New York, pp. 249– ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discontinuity (linguistics)
In linguistics, a discontinuity occurs when a given word or phrase is separated from another word or phrase that it modifies in such a manner that a direct connection cannot be established between the two without incurring crossing lines in the Parse tree, tree structure. The terminology that is employed to denote discontinuities varies depending on the theory of syntax at hand. The terms ''discontinuous constituent'', ''displacement'', ''long distance dependency'', ''unbounded dependency'', and ''projectivity violation'' are largely synonymous with the term ''discontinuity''. There are various types of discontinuities, the most prominent and widely studied of these being topicalization, wh-fronting, scrambling (linguistics), scrambling, and extraposition. Natural languages vary with respect to the types of discontinuities that they permit. The fixed word order of English allows for relatively few discontinuities compared to, for instance, the Slavic languages, which are much more p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Head-Driven Phrase Structure Grammar
Head-driven phrase structure grammar (HPSG) is a highly lexicalized, constraint-based grammar developed by Carl Pollard and Ivan Sag. It is a type of phrase structure grammar, as opposed to a dependency grammar, and it is the immediate successor to generalized phrase structure grammar. HPSG draws from other fields such as computer science (type system, data type theory and knowledge representation) and uses Ferdinand de Saussure's notion of the sign (linguistics), sign. It uses a uniform formalism and is organized in a modular way which makes it attractive for natural language processing. An HPSG includes principles and grammar rules and lexicon entries which are normally not considered to belong to a grammar. The formalism is based on lexicalism. This means that the lexicon is more than just a list of entries; it is in itself richly structured. Individual entries are marked with types. Types form a hierarchy. Early versions of the grammar were very lexicalized with few grammatica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Government And Binding Theory
Government and binding (GB, GBT) is a theory of syntax and a phrase structure grammar in the tradition of transformational grammar developed principally by Noam Chomsky in the 1980s. This theory is a radical revision of his earlier theories and was later revised in '' The Minimalist Program'' (1995) and several subsequent papers, the latest being ''Three Factors in Language Design'' (2005). Although there is a large literature on government and binding theory which is not written by Chomsky, Chomsky's papers have been foundational in setting the research agenda. The name refers to two central subtheories of the theory: ''government'', which is an abstract syntactic relation applicable, among other things, to the assignment of case; and '' binding'', which deals chiefly with the relationships between pronouns and the expressions with which they are co-referential. GB was the first theory to be based on the principles and parameters model of language, which also underlies the later ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minimalist Program
In linguistics, the minimalist program is a major line of inquiry that has been developing inside generative grammar since the early 1990s, starting with a 1993 paper by Noam Chomsky. Following Imre Lakatos's distinction, Chomsky presents minimalism as a research program, program, understood as a mode of inquiry that provides a conceptual framework which guides the development of linguistic theory. As such, it is characterized by a broad and diverse range of research directions. For Chomsky, there are two basic Minimalist grammar, minimalist questions—What is language? and Why does it have the properties it has?—but the answers to these two questions can be framed in any theory.Boeckx, Cedric ''Linguistic Minimalism. Origins, Concepts, Methods and Aims'', pp. 84 and 115. Conceptual framework Goals and assumptions Minimalism is an approach developed with the goal of understanding the nature of language. It models a speaker's knowledge of language as a computational syste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lexical Functional Grammar
Lexical functional grammar (LFG) is a constraint-based grammar framework in theoretical linguistics. It posits several parallel levels of syntactic structure, including a phrase structure grammar representation of word order and constituency, and a representation of grammatical functions such as subject and object, similar to dependency grammar. The development of the theory was initiated by Joan Bresnan and Ronald Kaplan in the 1970s, in reaction to the theory of transformational grammar which was current in the late 1970s. It mainly focuses on syntax, including its relation with morphology and semantics. There has been little LFG work on phonology (although ideas from optimality theory have recently been popular in LFG research). Some recent work combines LFG with Distributed Morphology in Lexical-Realizational Functional Grammar.Ash Asudeh, Paul B. Melchin & Daniel Siddiqi (2021). ''Constraints all the way down: DM in a representational model of grammar''. In ''WCCFL 39 Proc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transformational Grammar
In linguistics, transformational grammar (TG) or transformational-generative grammar (TGG) was the earliest model of grammar proposed within the research tradition of generative grammar. Like current generative theories, it treated grammar as a system of formal rules that generate all and only grammatical sentences of a given language. What was distinctive about transformational grammar was that it posited transformation rules that mapped a sentence's deep structure to its pronounced form. For example, in many variants of transformational grammar, the English active voice sentence "Emma saw Daisy" and its passive counterpart "Daisy was seen by Emma" share a common deep structure generated by phrase structure rules, differing only in that the latter's structure is modified by a passivization transformation rule. Basic mechanisms Transformational grammar was a species of generative grammar and shared many of its goals and postulations, including the notion of linguistics as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
