Head-Driven Phrase Structure Grammar (HPSG) Introduction - - PowerPoint PPT Presentation

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Head-Driven Phrase Structure Grammar (HPSG) Introduction - - PowerPoint PPT Presentation

May 28, 2023 524 likes •1.1k views

Head-Driven Phrase Structure Grammar (HPSG) Introduction Grammatikformalismen Lecture 12.06.12 1 The building blocks of HPSG grammars Grammatikformalismen Lecture 12.06.12 2 HPSG grammars from a linguistic perspective

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Grammatikformalismen – Lecture 12.06.12 1

Head-Driven Phrase Structure Grammar (HPSG) Introduction

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Grammatikformalismen – Lecture 12.06.12 2

The building blocks of HPSG grammars

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Grammatikformalismen – Lecture 12.06.12 3

HPSG grammars from a linguistic perspective

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Grammatikformalismen – Lecture 12.06.12 4

HPSG feature structures

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Grammatikformalismen – Lecture 12.06.12 5

HPSG grammars from a formal perspective

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Grammatikformalismen – Lecture 12.06.12 6

The signature

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Example excerpt of a signature

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Grammatikformalismen – Lecture 12.06.12 8

Sort-resolved

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Grammatikformalismen – Lecture 12.06.12 9

Models of linguistic objects

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Grammatikformalismen – Lecture 12.06.12 10

Structure sharing

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Descriptions

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Grammatikformalismen – Lecture 12.06.12 12

Descriptions (cont.)

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Description example

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Subsumption

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HPSG from a linguistic perspective (again)

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An ontology of linguistic objects

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Why the complicated structure?

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Grammatikformalismen – Lecture 12.06.12 18

Part-of-speech (head information)

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Properties of particular part-of-speech

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Motivating VFORM

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Motivating CASE

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Motivating SUBCAT

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What SUBCAT does

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Locality of SUBCAT

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CONTENT information

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Semantic representations

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Indices

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Auxiliary data structures

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Abbreviations for describing lists

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Abbreviations of common AVMs

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The Lexicon

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An example lexicon

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A very first sketch of an example

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Types of phrases

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An ontology of phrases

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Sketch of an example for head-complement structures

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Universal Principles

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Head-Feature Principle:

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Subcat Principle:

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Fallout from these Principles

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Immediate Dominance (ID) Schemata

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Immediate Dominance Principle (for English):

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Immediate Dominance Principle (for English):

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Towards Head Adjunct Structures

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Lexical entry of an attributive adjective

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Sketch of an example for a head-adjunct structure

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Sketch of an example with an auxiliary

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Sketch of an example with an inverted auxiliary

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SPEC Principle:

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Marking Principle:

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Lexical entry of the marker that

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Sketch of an example for a head-marker structure

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A few more points on HPSG