Coreference Resolution for Spoken French Loïc Grobol
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Questions Under Discussion: from Sentence to Discourse∗
Questions under Discussion: From sentence to discourse∗ Anton Benz Katja Jasinskaja July 14, 2016 Abstract Questions under discussion (QUD) is an analytic tool that has recently become more and more popular among linguists and language philosophers as a way to characterize how a sentence fits in its context. The idea is that each sentence in discourse addresses a (of- ten implicit) QUD either by answering it, or by bringing up another question that can help answering that QUD. The linguistic form and the interpretation of a sentence, in turn, may depend on the QUD it addresses. The first proponents of the QUD approach (von Stut- terheim & Klein, 1989; van Kuppevelt, 1995) thought of it as a general approach to the analysis of discourse structure where structural relations between sentences in a coherent discourse are understood in terms of relations between questions they address. However, the idea did not find broad application in discourse structure analysis, where theories aiming at logical discourse representations are predominantly based on the notion of coherence re- lations (Mann & Thompson, 1988; Hobbs, 1985; Asher & Lascarides, 2003). The problem of finding overt markers for QUDs means that they are also difficult to utilize for quanti- tative measures of discourse coherence (McNamara et al., 2010). At the same time QUD proved useful in the analysis of a wide range of linguistic phenomena including accentua- tion, discourse particles, presuppositions and implicatures. The goal of this special issue is to bring together cutting-edge research that demonstrates the success of QUD in linguistics and the need for the development of a comprehensive model of discourse coherence that incorporates the notion of QUD as its integral part. -
Mind the GAP: a Balanced Corpus of Gendered Ambiguous Pronouns
Mind the GAP: A Balanced Corpus of Gendered Ambiguous Pronouns Kellie Webster and Marta Recasens and Vera Axelrod and Jason Baldridge Google AI Language fwebsterk|recasens|vaxelrod|[email protected] Abstract (1) In May, Fujisawa joined Mari Motohashi’s rink as the team’s skip, moving back from Karuizawa to Ki- Coreference resolution is an important task tami where she had spent her junior days. for natural language understanding, and the resolution of ambiguous pronouns a long- With this scope, we make three key contributions: standing challenge. Nonetheless, existing • We design an extensible, language- corpora do not capture ambiguous pronouns in sufficient volume or diversity to accu- independent mechanism for extracting rately indicate the practical utility of mod- challenging ambiguous pronouns from text. els. Furthermore, we find gender bias in • We build and release GAP, a human-labeled existing corpora and systems favoring mas- corpus of 8,908 ambiguous pronoun-name culine entities. To address this, we present pairs derived from Wikipedia.2 This dataset and release GAP, a gender-balanced labeled targets the challenges of resolving naturally- corpus of 8,908 ambiguous pronoun-name occurring ambiguous pronouns and rewards pairs sampled to provide diverse coverage systems which are gender-fair. of challenges posed by real-world text. We explore a range of baselines which demon- • We run four state-of-the-art coreference re- strate the complexity of the challenge, the solvers and several competitive simple base- best achieving just 66.9% F1. We show lines on GAP to understand limitations in that syntactic structure and continuous neu- current modeling, including gender bias. -
Constraints on Donkey Pronouns
Constraints on Donkey Pronouns The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Citation Grosz, P. G., P. Patel-Grosz, E. Fedorenko, and E. Gibson. “Constraints on Donkey Pronouns.” Journal of Semantics 32, no. 4 (July 15, 2014): 619–648. As Published http://dx.doi.org/10.1093/jos/ffu009 Publisher Oxford University Press Version Author's final manuscript Citable link http://hdl.handle.net/1721.1/102962 Terms of Use Creative Commons Attribution-Noncommercial-Share Alike Detailed Terms http://creativecommons.org/licenses/by-nc-sa/4.0/ CONSTRAINTS ON DONKEY PRONOUNS Patrick Grosz, Pritty Patel-Grosz, Evelina Fedorenko, Edward Gibson Abstract This paper reports on an experimental study of donkey pronouns, pronouns (e.g. it) whose meaning covaries with that of a non-pronominal noun phrase (e.g. a donkey) even though they are not in a structural relationship that is suitable for quantifier-variable binding. We investigate three constraints, (i) the preference for the presence of an overt NP antecedent that is not part of another word, (ii) the salience of the position of an antecedent that is part of another word, and (iii) the uniqueness of an intended antecedent (in terms of world knowledge). We compare constructions in which intended antecedents occur in a context such as who owns an N / who is an N-owner with constructions of the type who was without an N / who was N-less. Our findings corroborate the existence of the overt NP antecedent constraint, and also show that the salience of an unsuitable antecedent’s position matters. -
Arxiv:1805.11824V1 [Cs.CL] 30 May 2018
Artificial Intelligence Review manuscript No. (will be inserted by the editor) Anaphora and Coreference Resolution: A Review Rhea Sukthanker · Soujanya Poria · Erik Cambria · Ramkumar Thirunavukarasu Received: date / Accepted: date Abstract Entity resolution aims at resolving repeated references to an entity in a document and forms a core component of natural language processing (NLP) research. This field possesses immense potential to improve the performance of other NLP fields like machine translation, sentiment analysis, paraphrase detection, summarization, etc. The area of entity resolution in NLP has seen proliferation of research in two separate sub-areas namely: anaphora resolution and coreference resolution. Through this review article, we aim at clarifying the scope of these two tasks in entity resolution. We also carry out a detailed analysis of the datasets, evaluation metrics and research methods that have been adopted to tackle this NLP problem. This survey is motivated with the aim of providing the reader with a clear understanding of what constitutes this NLP problem and the issues that require attention. Keywords Entity Resolution · Coreference Resolution · Anaphora Resolution · Natural Language Processing · Sentiment Analysis · Deep Learning 1 Introduction A discourse is a collocated group of sentences which convey a clear understanding only when read together. The etymology of anaphora is ana (Greek for back) and pheri (Greek for to bear), which in simple terms means repetition. In computational linguistics, anaphora is typically defined as references to items mentioned earlier in the discourse or \pointing back" reference as described by (Mitkov, 1999). The most prevalent type of anaphora in natural language is the pronominal anaphora (Lappin and Leass, 1994). -
Event Coreference Resolution: a Survey of Two Decades of Research
Proceedings of the Twenty-Seventh International Joint Conference on Artificial Intelligence (IJCAI-18) Event Coreference Resolution: A Survey of Two Decades of Research Jing Lu and Vincent Ng Human Language Technology Research Institute University of Texas at Dallas Richardson, TX 75083-0688 fljwinnie,[email protected] Abstract Recent years have seen a gradual shift of focus from entity-based tasks to event-based tasks in informa- tion extraction research. Being a core event-based task, event coreference resolution is less studied but arguably more challenging than entity corefer- ence resolution. This paper provides an overview of the major milestones made in event coreference research since its inception two decades ago. Figure 1: The standard information extraction pipeline 1 Introduction It should be easy to see from this example that to per- Compared to entity coreference resolution, event coreference form end-to-end event coreference resolution, one has to resolution is less studied but arguably more challenging. To build an information extraction (IE) pipeline (cf. Figure 1) see its difficulty, consider the following example on within- that involves (1) extracting the entity mentions from a given document event coreference resolution, whose goal is to de- document (the entity extraction component) and determining termine which event mentions in a document refer to the same which of them are coreferent (the entity coreference compo- real-world event: nent); (2) extracting the event mentions by identifying their trigger words/phrases and determining which entity mentions Georges Cipriani fleftg a prison in Ensisheim ev1 are their arguments (the event extraction component); and (3) in northern France on parole on Wednesday. -
Binding and Coreference in Vietnamese
University of Massachusetts Amherst ScholarWorks@UMass Amherst Doctoral Dissertations Dissertations and Theses October 2019 Binding and Coreference in Vietnamese Thuy Bui University of Massachusetts Amherst Follow this and additional works at: https://scholarworks.umass.edu/dissertations_2 Part of the Psycholinguistics and Neurolinguistics Commons, Semantics and Pragmatics Commons, and the Syntax Commons Recommended Citation Bui, Thuy, "Binding and Coreference in Vietnamese" (2019). Doctoral Dissertations. 1694. https://doi.org/10.7275/ncqc-n685 https://scholarworks.umass.edu/dissertations_2/1694 This Open Access Dissertation is brought to you for free and open access by the Dissertations and Theses at ScholarWorks@UMass Amherst. It has been accepted for inclusion in Doctoral Dissertations by an authorized administrator of ScholarWorks@UMass Amherst. For more information, please contact [email protected]. BINDING AND COREFERENCE IN VIETNAMESE A Dissertation Presented by THUY BUI Submitted to the Graduate School of the University of Massachusetts Amherst in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY September 2019 Linguistics c Copyright by Thuy Bui 2019 All Rights Reserved BINDING AND COREFERENCE IN VIETNAMESE A Dissertation Presented by THUY BUI Approved as to style and content by: ————————————————– Kyle Johnson, Co-Chair ————————————————– Brian Dillon, Co-Chair ————————————————– Rajesh Bhatt, Member ————————————————– Adrian Staub, Member ————————————————– Joe Pater, Department Chair Department of Linguistics ACKNOWLEDGMENTS I now realize how terrible I really am at feelings, words, and expressing feelings with words, as I spent the past three weeks trying to make these acknowledge- ments sound right, and they just never did. With this acute awareness and abso- lutely no compensating skills, I am going to include a series of inadequate thank yous to the many amazing people whose overflowing acts of kindness towards me exceeds what words can possibly describe anyway. -
Long-Distance Reflexivization and Logophoricity in the Dargin Language Muminat Kerimova Florida International University
Florida International University FIU Digital Commons MA in Linguistics Final Projects College of Arts, Sciences & Education 2017 Long-Distance Reflexivization and Logophoricity in the Dargin Language Muminat Kerimova Florida International University Follow this and additional works at: https://digitalcommons.fiu.edu/linguistics_ma Part of the Linguistics Commons Recommended Citation Kerimova, Muminat, "Long-Distance Reflexivization and Logophoricity in the Dargin Language" (2017). MA in Linguistics Final Projects. 3. https://digitalcommons.fiu.edu/linguistics_ma/3 This work is brought to you for free and open access by the College of Arts, Sciences & Education at FIU Digital Commons. It has been accepted for inclusion in MA in Linguistics Final Projects by an authorized administrator of FIU Digital Commons. For more information, please contact [email protected]. FLORIDA INTERNATIONAL UNIVERSITY Miami, Florida LONG-DISTANCE REFLEXIVIZATION AND LOGOPHORICITY IN THE DARGIN LANGUAGE A thesis submitted in partial fulfillment of the requirements for the degree of MASTER OF ARTS in LINGUISTICS by Muminat Kerimova 2017 ABSTRACT OF THE THESIS LONG-DISTANCE REFLEXIVIZATION AND LOGOPHORICITY IN THE DARGIN LANGUAGE by Muminat Kerimova Florida International University, 2017 Miami, Florida Professor Ellen Thompson, Major Professor The study of anaphora challenges us to determine the conditions under which the pronouns of a language are associated with possible antecedents. One of the theoretical questions is whether the distribution of pronominal forms is best explained by a syntactic, semantic or discourse level analysis. A more practical question is how we distinguish between anaphoric elements, e.g. what are the borders between the notions of pronouns, locally bound reflexives and long-distance reflexives? The study analyzes the anaphora device saj in Dargin that is traditionally considered to be a long-distance reflexivization language. -
Modeling the Lifespan of Discourse Entities with Application to Coreference Resolution
Journal of Artificial Intelligence Research 52 (2015) 445-475 Submitted 09/14; published 03/15 Modeling the Lifespan of Discourse Entities with Application to Coreference Resolution Marie-Catherine de Marneffe [email protected] Linguistics Department The Ohio State University Columbus, OH 43210 USA Marta Recasens [email protected] Google Inc. Mountain View, CA 94043 USA Christopher Potts [email protected] Linguistics Department Stanford University Stanford, CA 94035 USA Abstract A discourse typically involves numerous entities, but few are mentioned more than once. Dis- tinguishing those that die out after just one mention (singleton) from those that lead longer lives (coreferent) would dramatically simplify the hypothesis space for coreference resolution models, leading to increased performance. To realize these gains, we build a classifier for predicting the singleton/coreferent distinction. The model’s feature representations synthesize linguistic insights about the factors affecting discourse entity lifespans (especially negation, modality, and attitude predication) with existing results about the benefits of “surface” (part-of-speech and n-gram-based) features for coreference resolution. The model is effective in its own right, and the feature represen- tations help to identify the anchor phrases in bridging anaphora as well. Furthermore, incorporating the model into two very different state-of-the-art coreference resolution systems, one rule-based and the other learning-based, yields significant performance improvements. 1. Introduction Karttunen imagined a text interpreting system designed to keep track of “all the individuals, that is, events, objects, etc., mentioned in the text and, for each individual, record whatever is said about it” (Karttunen, 1976, p. 364). -
1 Discourse and Logical Form: Pronouns, Attention and Coherence
Discourse and Logical Form: Pronouns, Attention and Coherence 1 Introduction The meaning of the pronoun ‘he’ does not seem ambiguous in the way that, say, the noun ‘bank’ is. Yet what we express in uttering ‘He is happy,’ pointing at Bill, differs from what we express when uttering it, pointing at a different person, Sam. ‘he’ in the first case refers to Bill, in the second to Sam. And further with an utterance of ‘A man always drives the car he owns,’ or ‘A man came in. He sat down,’ without an accompanying pointing gesture, ‘he’ refers not at all; its interpretation, instead, co- varies with possible instances in the range of the quantifier ‘A man’. Those uses in which the pronoun is interpreted referentially are usually called ‘demonstrative,’ and those in which it is interpreted non-referentially are usually called ‘bound’. We immediately face two questions: what is the semantic value of a pronoun in a context, given that it can have both bound and demonstrative uses? And, since this value can vary with context, how does context fix it? The first question concerns the semantics of pronouns, and the second their meta-semantics. The received view answers the first question by positing an ambiguity: bound uses of ‘he’ function as bound variables; demonstrative ones, by contrast, are referential. The received view’s answer to the second question is that the semantic value of a bound use co-varies with possible instances in the range of a binding expression, and for demonstrative uses, linguistic meaning constrains, but does not fully determine, its semantic value in context. -
Discourse-Givenness of Noun Phrases Theoretical and Computational Models
Discourse-Givenness of Noun Phrases Theoretical and Computational Models Dissertation zur Erlangung des akademischen Grades Doktor der Philosophie (Dr. phil.) der Humanwissenschaftlichen Fakult¨at der Universit¨atPotsdam vorgelegt von Julia Ritz Stuttgart, Mai 2013 Published online at the Institutional Repository of the University of Potsdam: URL http://opus.kobv.de/ubp/volltexte/2014/7081/ URN urn:nbn:de:kobv:517-opus-70818 http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-70818 Erkl¨arung(Declaration of Authenticity of Work) Hiermit erkl¨areich, dass ich die beigef¨ugteDissertation selbstst¨andigund ohne die un- zul¨assigeHilfe Dritter verfasst habe. Ich habe keine anderen als die angegebenen Quellen und Hilfsmittel genutzt. Alle w¨ortlich oder inhaltlich ¨ubernommenen Stellen habe ich als solche gekennzeichnet. Ich versichere außerdem, dass ich die Dissertation in der gegenw¨artigenoder einer an- deren Fassung nur in diesem und keinem anderen Promotionsverfahren eingereicht habe, und dass diesem Promotionsverfahren keine endg¨ultiggescheiterten Promotionsverfahren vorausgegangen sind. Im Falle des erfolgreichen Abschlusses des Promotionsverfahrens erlaube ich der Fakult¨at, die angef¨ugtenZusammenfassungen zu ver¨offentlichen. Ort, Datum Unterschrift iii iv iv Contents Preface xiii 1 Introduction 1 1.1 Discourse-Givenness and Related Concepts . .3 1.2 Goal . .4 1.3 Motivation . .6 1.4 The Field of Discourse-Givenness Classification . 10 1.5 Structure of this Document . 11 2 Concepts and Definitions 13 2.1 Basic Concepts and Representation . 13 2.1.1 Basic Concepts in Discourse . 14 2.1.2 Formal Representation . 15 2.2 Reference . 18 2.2.1 Identifying Basic Units . 20 2.2.2 Non-Referring Use of Expressions . -
Lecture 5. Introduction to Issues in Anaphora 1. What Is Anaphora? 2
Formal Semantics and Current Problems of Semantics, Lecture 5 Formal Semantics and Current Problems of Semantics, Lecture 5 Barbara H. Partee, RGGU, March 4, 2008 p. 1 Barbara H. Partee, RGGU, March 4, 2008 p. 2 Lecture 5. Introduction to Issues in Anaphora in (1a) and what is sometimes called a deictic use1 of he in (2), as it might be uttered while looking at someone who just walked by, where there is no linguistic antecedent. 1. What is Anaphora? ..................................................................................................................................... 1 (2) He looks lost. 2. Coreference vs. variable-binding................................................................................................................ 2 3. Syntactic aspects of anaphora, and syntax-semantics interface issues ....................................................... 4 Two notes on terminology. In the broad sense of the term anaphora, all of the examples 4. Definite NPs as anaphoric expressions: debates......................................................................................... 7 above as well as the ones in (3) below involve anaphora. There are two narrower senses 5. Issues and puzzles in anaphora. Preview of coming lectures ..................................................................... 7 5.1. Donkey anaphora and discourse anaphora with indefinite antecedents and the rise of Dynamic in which anaphora or anaphor are distinguished from other terms. Semantics. Weeks 6-8............................................................................................................................... -
Binding, Coreference, and Presuppositions: a Presuppositional Precede-And-Command Binding Theory
Binding, Coreference, and Presuppositions: A Presuppositional Precede-and-Command Binding Theory Benjamin Bruening (University of Delaware) rough draft, November 26, 2018, comments welcome ([email protected]) Abstract Almost all current approaches to the binding theory (the conditions that regulate covaluation between NPs within a sentence) have accepted the view of Reinhart (1983a,b), according to which the binding theory should regulate only syntactic binding and not coreference. They also adopt the view that syntactic movement is implicated somehow in binding (either directly, or indirectly, through constraints on chains). In this paper, I argue that both of these ideas are incorrect. Instead, we want a binding theory that is unrelated to syntactic movement, and one that regulates both binding and coreference, as the classical binding theory had it (e.g., Chomsky 1981). I propose a new binding theory that combines the Precede-and-Command analysis of Bruening (2014) with the presuppositional approach to Binding Condition A in Sauerland (2013). 1 Introduction The classical binding theory (e.g., Chomsky 1981) did not distinguish between binding and coref- erence. Its conditions (Conditions A, B, and C) regulated both, by imposing conditions on coin- dexing. In contrast, almost all alternatives to the classical binding theory have accepted the view of Reinhart (1983a,b), according to which the binding theory should regulate only syntactic binding and not coreference. Many also adopt the view that syntactic movement is implicated somehow in binding. In this paper, I argue that both of these ideas are incorrect. First, I argue that the binding the- ory should regulate both binding and coreference, contrary to all work that has followed Reinhart.