Ambiguity & Transformations

Slides:

Advertisements

Similar presentations

Tree Diagrams / Labelling Phrases

Advertisements

Chapter 4 Syntax Part IV.

Lecture 3a Clause functions Adapted from Mary Laughren.

Sentence Construction and the Syntactical Tree forms Lecture 6 Feed back of mid-test.

Lecture 7 Syntax Transformations.

Techniques of Grammatical Analysis

Language and Cognition Colombo, June 2011 Day 2 Introduction to Linguistic Theory, Part 4.

Syntax: The Sentence Patterns of Language

Analysing Syntax 1 Lesson 8B.

Phrase Structure Rules Must allow all and only the grammatical sentences in a language Descriptive rules, not necessarily prescriptive Each rule “rewrites”

Morphology and Syntax Practice 1 Lesson 9A The top of the tree So the tree for any sentence (S) should start like this: This means that every sentence.

The study of how words combine to form grammatical sentences.

The Nature of Language Tutorial 5 Syntax. Presentation Outline Task 1: English Syntactic Structures Task 2: Phrase Structure Rules for Ewe Task 3: Evidence.

CS344: Introduction to Artificial Intelligence Pushpak Bhattacharyya CSE Dept., IIT Bombay Lecture 20-21– Natural Language Parsing.

Syntax: The Sentence Patterns of Language Deny A. Kwary Airlangga University.

Matakuliah: G0922/Introduction to Linguistics Tahun: 2008 Session 11 Syntax 2.

Ambiguity and Transformations

Phrase Structure Rules

Syntax: The analysis of sentence structure

LI 2013 NATHALIE F. MARTIN S YNTAX. Table of Content I. Grammatical vs. Ungrammatical Grammatical vs. Ungrammatical II. The Sentence The Sentence III.

Syntax: Part II More Structures.

Dr. Ansa Hameed Syntax (4).

Syntax The analysis of sentence structure

Syntax: The analysis of sentence structure

Syntax Nuha AlWadaani.

English 306A; Harris 1 Syntax Word patterns. English 306A; Harris 2 Syntactic arguments Syntactic form Sentence patterns Grammatical roles Phrase structure.

LI 2013 NATHALIE F. MARTIN S YNTAX. Grammatical vs Ungrammatical.

Ch. 2 Syntax: The Sentence Patterns of Language

Creativity of Language

Chapter 4 Syntax Part II.

Lecture Four Syntax.

Introduction to Linguistics

Phrase structure VP Adv V NP PP* oft smokes a cig in th park VP ADVVP VPPP V NP often sm a cig in the p.

Related Sentences The boy is sleeping. Is the boy sleeping? The boy can sleep. Can the boy sleep? Mary picked up the book. Mary picked the book up. Mary.

CS : Speech, Natural Language Processing and the Web/Topics in Artificial Intelligence Pushpak Bhattacharyya CSE Dept., IIT Bombay Lecture 12: Deeper.

“Any speaker of any human language can produce and understand an infinite number of sentences.” Fromkin, Victoria, Robert Rodman & Nina Hyams An.

Constituents Introduction to syntax. Review 打進季後賽找到適當的理由發現任何外傷他送媽媽一束花建議考生把握最後三周的時間屬於那個國度.

IV. SYNTAX. 1.1 What is syntax? Syntax is the study of how sentences are structured, or in other words, it tries to state what words can be combined with.

Natural Language Processing Lecture 6 : Revision.

Introduction to English Syntax

Syntactic Rules Must Account for the Following  The grammaticality of sentences  Word order  Hierarchical organization of sentences  Grammatical relations.

Today Phrase structure rules, trees Constituents Recursion Conjunction

Chapter 4: Syntax Part V.

PARSING David Kauchak CS159 – Spring 2011 some slides adapted from Ray Mooney.

Creativity of Language

 The grammaticality of sentences  Word order  Hierarchical organization of sentences  Grammatical relations  Structural ambiguity  Different structures.

Review of basic concepts.  The knowledge of sentences and their structure.  Syntactic rules include: ◦ The grammaticality of sentences ◦ Word order.

Rules, Movement, Ambiguity

The man bites the dog man bites the dog bites the dog the dog dog Parse Tree NP A N the man bites the dog V N NP S VP A 1. Sentence  noun-phrase verb-phrase.

Natural Language Processing

Illiterate? Write today for free help. Wanted. Man to take care of cow that does not smoke or drink.

8.Transformations Self-Study Worksheet

1 Syntax 2. 2 Now let’s change the NP rule again Such that we have – S  NP VP – VP  V NP – NP  (DET) (ADJ) N Now you can diagram this sentence – The.

1 Natural Language Processing Lectures 8-9 Auxiliary Verbs Movement Phenomena Reading: James Allen NLU (Chapter 5)

◦ Process of describing the structure of phrases and sentences Chapter 8 - Phrases and sentences: grammar1.

Syntax 3rd class Chapter 4. Syntactic Categories 1. That glass suddenly broke. 2. A jogger ran toward the end of the lane. 3. These dead trees might block.

CS460/IT632 Natural Language Processing/Language Technology for the Web Lecture 13 (17/02/06) Prof. Pushpak Bhattacharyya IIT Bombay Top-Down Bottom-Up.

WELCOME ASL 1 CLASS! TODAY: 1. 5 MIN.-DEAF HUMOR- COMMERCIAL 2. QUICK TEST- UNIT 1-2, DEAF HUMOR 3. ARTICLE DISCUSSION (COMP. BOOKS) 4. GLOSSING HELP,

Marking Homework 1. A very inexperienced journalist wrote the article about the accident. 2. The detective will give you a report about his investigation.

The final chapter.  Constituents ◦ Natural groupings of a sentence  Morphemes ◦ Smallest meaningful units of a word  How to test whether a group of.

NLP. Introduction to NLP #include int main() { int n, reverse = 0; printf("Enter a number to reverse\n"); scanf("%d",&n); while (n != 0) { reverse =

CS : Language Technology for the Web/Natural Language Processing Pushpak Bhattacharyya CSE Dept., IIT Bombay Parsing Algos.

Week 3. Clauses and Trees English Syntax. Trees and constituency A sentence has a hierarchical structure Constituents can have constituents of their own.

Chapter 4 Syntax a branch of linguistics that studies how words are combined to form sentences and the rules that govern the formation of sentences.

Lecture 4b: Verb Processes

4.3 The Generative Approach

Lecture 10 Krisztina Szécsényi

CS : Speech, NLP and the Web/Topics in AI

Introduction to Linguistics

Presentation transcript:

Ambiguity & Transformations Deny A. Kwary http://www.kwary.net Airlangga University

Ambiguity: a word, phrase or sentence with multiple meanings Synthetic buffalo hides (NP) Synthetic buffalo hides (NP) Synthetic buffalo hides Synthetic buffalo hides Buffalo hides that are synthetic. Hides of synthetic buffalo.

Ambiguities often lead to humorous results For sale: an antique desk suitable for lady with thick legs and large drawers.  what does “thick legs and large drawers” refer to? The desk or the lady?

Structural Ambiguity (1) The boy saw the man with the telescope NP Aux VP Det N V NP PP Det N P NP Det N The boy past saw the man with the telescope

Structural Ambiguity (2) The boy saw the man with the telescope NP Aux VP Det NP N V Det N PP P NP Det N The boy past saw the man with the telescope

Draw two phrase structure trees representing the two meanings of the sentence: The magician touched the child with the wand. Be sure you indicate which meaning goes with which tree.

Declarative – Interrogative Move the auxiliary to the left of the subject. The boy will leave. S Will the boy leave? S NP Aux VP Aux NP VP Det N V Det N V The boy will leave Will the boy leave The deep structure The surface structure

The Wh Movement S NP Aux VP Det NP N V Det N The man should repair Surface structure: Which car should the man repair? Deep structure: S NP Aux VP Det NP N V Det N The man should repair which car

Draw the deep structure of the following sentences (adapted from #10 & 11, p.242) Will the boss hire Hillary? Is that player leaving the team? Who should the director call? What is Joanne eating?

That’s All For Today See You Next Week Deny A. Kwary http://www.kwary.net Airlangga University