'Vp verb np' presentation slideshows

Representing Meaning

Representing Meaning. Lecture 19 13 Sep 2007. Semantic Analysis. Semantic analysis is the process of taking in some linguistic input and assigning a meaning representation to it. There a lot of different ways to do this that make more or less (or no) use of syntax

1.37k views • 110 slides

Unification-based approach to NLP

Unification-based approach to NLP final parsing and semantics examples; Unification-based approach to NLP; bits of history, First-order predicate logic; unification; Resolution. CFG Parsing example. A top-down, depth-first, left to right parser.

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Syntactic Attributes

513 views • 51 slides

CSCI 5832 Natural Language Processing

543 views • 42 slides

Features and Unification

Features and Unification. Grammatical Categories (e.g. Non3sgAux, 3sgNP) and grammar rules (S-> NP VP) can be thought of as objects that have complex set of properties associated with them. These properties are represented as constraints ( constraint-based formalisms)

461 views • 32 slides

Parsing context-free grammars

Parsing context-free grammars. Context-free grammars specify structure, not process. There are many different ways to parse input in accordance with a given context-free grammar. We will review a top-down parsing algorithm a bottom-up parsing algorithm We will present the Earley algorithm.

438 views • 30 slides

Natural Language Processing

Natural Language Processing. Lecture Notes 11 Chapter 15 (part 1). Semantic Analysis. These notes: syntax driven compositional semantic analysis Assign meanings based only on the grammar and lexicon (no inference, ignore context). Compositional Analysis. Principle of Compositionality

241 views • 24 slides

Context Free Grammar (CFG): Specification for Structures & Constituency

NP. NP. PP. NP. girl. in. the. park. Context Free Grammar (CFG): Specification for Structures & Constituency. Parse Tree: graphical representation of structure root node (S): a sentencial level structure internal nodes: constituents of the sentence

400 views • 16 slides

Section 11.3 Features structures in the Grammar ? Jin Wang

Section 11.3 Features structures in the Grammar ? Jin Wang. How to specify a way to integrate feature structures and unification operations into the specification of a grammar?.

262 views • 14 slides