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However, regardless of the method of acquisitions, there is a consensus among bootstrappers that bootstrapping theories of lexical acquisition depend on the natural link between semantic meaning and syntactic function. This syntactic-semantic link must be readily available for children to begin learning language and, therefore, must be innate.
Semantic bootstrapping is a linguistic theory of language acquisition which proposes that children can acquire the syntax of a language by first learning and recognizing semantic elements and building upon, or bootstrapping from, that knowledge. [8] According to Pinker, [8] semantic bootstrapping requires two critical assumptions to hold true:
Pinker believes that syntactic bootstrapping is more accurately "syntactic cueing of word meaning" and that this use of syntactic knowledge to obtain new semantic knowledge is in no way contradictory to semantic bootstrapping, but is another technique a child may use in later stages of language acquisition. [10]
Syntactic processing is usually taken to be the most basic analysis step, which feeds into semantic processing and the inclusion of other information. A separate mental module parses sentences and lexical access happens first. Then, one syntactic hypothesis is considered at a time. There is no initial influence of meaning, or semantic.
Before the 1950s, there was no discussion of a syntax–semantics interface in American linguistics, since neither syntax nor semantics was an active area of research. [17] This neglect was due in part to the influence of logical positivism and behaviorism in psychology, that viewed hypotheses about linguistic meaning as untestable.
Part-of-speech tagging (which resolves some semantic ambiguity) is a related problem, and often a prerequisite for or a subproblem of syntactic parsing. Syntactic parses can be used for information extraction (e.g. event parsing, semantic role labelling, entity labelling) and may be further used to extract formal semantic representations.
Theta roles are syntactic relations that refers to the semantic thematic relations. For example, take the sentence "Reggie gave the kibble to Fergus on Friday." Thematic relations: Reggie is doing the action so is the agent, but he is also the source of the kibble (note Reggie bears two thematic relations); the kibble is the entity acted upon ...
The grammatical relations belong to the level of surface syntax, whereas the thematic relations reside on a deeper semantic level. If, however, the correspondences across these levels are acknowledged, then the thematic relations can be seen as providing prototypical thematic traits for defining the grammatical relations.