Student Research Workshop Associated with RANLP 2011, Pages 1–8, Hissar, Bulgaria, 13 September 2011
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Machine-Translation Inspired Reordering As Preprocessing for Cross-Lingual Sentiment Analysis
Master in Cognitive Science and Language Master’s Thesis September 2018 Machine-translation inspired reordering as preprocessing for cross-lingual sentiment analysis Alejandro Ramírez Atrio Supervisor: Toni Badia Abstract In this thesis we study the effect of word reordering as preprocessing for Cross-Lingual Sentiment Analysis. We try different reorderings in two target languages (Spanish and Catalan) so that their word order more closely resembles the one from our source language (English). Our original expectation was that a Long Short Term Memory classifier trained on English data with bilingual word embeddings would internalize English word order, resulting in poor performance when tested on a target language with different word order. We hypothesized that the more the word order of any of our target languages resembles the one of our source language, the better the overall performance of our sentiment classifier would be when analyzing the target language. We tested five sets of transformation rules for our Part of Speech reorderings of Spanish and Catalan, extracted mainly from two sources: two papers by Crego and Mariño (2006a and 2006b) and our own empirical analysis of two corpora: CoStEP and Tatoeba. The results suggest that the bilingual word embeddings that we are training our Long Short Term Memory model with do not improve any English word order learning by part of the model when used cross-lingually. There is no improvement when reordering the Spanish and Catalan texts so that their word order more closely resembles English, and no significant drop in result score even when applying a random reordering to them making them almost unintelligible, neither when classifying between 2 options (positive-negative) nor between 4 (strongly positive, positive, negative, strongly negative). -
From CHILDES to Talkbank
From CHILDES to TalkBank Brian MacWhinney Carnegie Mellon University MacWhinney, B. (2001). New developments in CHILDES. In A. Do, L. Domínguez & A. Johansen (Eds.), BUCLD 25: Proceedings of the 25th annual Boston University Conference on Language Development (pp. 458-468). Somerville, MA: Cascadilla. a similar article appeared as: MacWhinney, B. (2001). From CHILDES to TalkBank. In M. Almgren, A. Barreña, M. Ezeizaberrena, I. Idiazabal & B. MacWhinney (Eds.), Research on Child Language Acquisition (pp. 17-34). Somerville, MA: Cascadilla. Recent years have seen a phenomenal growth in computer power and connectivity. The computer on the desktop of the average academic researcher now has the power of room-size supercomputers of the 1980s. Using the Internet, we can connect in seconds to the other side of the world and transfer huge amounts of text, programs, audio and video. Our computers are equipped with programs that allow us to view, link, and modify this material without even having to think about programming. Nearly all of the major journals are now available in electronic form and the very nature of journals and publication is undergoing radical change. These new trends have led to dramatic advances in the methodology of science and engineering. However, the social and behavioral sciences have not shared fully in these advances. In large part, this is because the data used in the social sciences are not well- structured patterns of DNA sequences or atomic collisions in super colliders. Much of our data is based on the messy, ill-structured behaviors of humans as they participate in social interactions. Categorizing and coding these behaviors is an enormous task in itself. -
The General Regionally Annotated Corpus of Ukrainian (GRAC, Uacorpus.Org): Architecture and Functionality
The General Regionally Annotated Corpus of Ukrainian (GRAC, uacorpus.org): Architecture and Functionality Maria Shvedova[0000-0002-0759-1689] Kyiv National Linguistic University [email protected] Abstract. The paper presents the General Regionally Annotated Corpus of Ukrainian, which is publicly available (GRAC: uacorpus.org), searchable online and counts more than 400 million tokens, representing most genres of written texts. It also features regional annotation, i. e. about 50 percent of the texts are attributed with regard to the different regions of Ukraine or countries of the di- aspora. If the author is known, the text is linked to their home region(s). The journalistic texts are annotated with regard to the place where the edition is pub- lished. This feature differs the GRAC from a majority of general linguistic cor- pora. Keywords: Ukrainian language, corpus, diachronic evolution, regional varia- tion. 1 Introduction Currently many major national languages have large universal corpora, known as “reference” corpora (cf. das Deutsche Referenzkorpus – DeReKo) or “national” cor- pora (a label dating back ultimately to the British National Corpus). These corpora are large, representative for different genres of written language, have a certain depth of (usually morphological and metatextual) annotation and can be used for many differ- ent linguistic purposes. The Ukrainian language lacks a publicly available linguistic corpus. Still there is a need of a corpus in the present-day linguistics. Independently researchers compile dif- ferent corpora of Ukrainian for separate research purposes with different size and functionality. As the community lacks a universal tool, a researcher may build their own corpus according to their needs. -
Conference Abstracts
EIGHTH INTERNATIONAL CONFERENCE ON LANGUAGE RESOURCES AND EVALUATION Held under the Patronage of Ms Neelie Kroes, Vice-President of the European Commission, Digital Agenda Commissioner MAY 23-24-25, 2012 ISTANBUL LÜTFI KIRDAR CONVENTION & EXHIBITION CENTRE ISTANBUL, TURKEY CONFERENCE ABSTRACTS Editors: Nicoletta Calzolari (Conference Chair), Khalid Choukri, Thierry Declerck, Mehmet Uğur Doğan, Bente Maegaard, Joseph Mariani, Asuncion Moreno, Jan Odijk, Stelios Piperidis. Assistant Editors: Hélène Mazo, Sara Goggi, Olivier Hamon © ELRA – European Language Resources Association. All rights reserved. LREC 2012, EIGHTH INTERNATIONAL CONFERENCE ON LANGUAGE RESOURCES AND EVALUATION Title: LREC 2012 Conference Abstracts Distributed by: ELRA – European Language Resources Association 55-57, rue Brillat Savarin 75013 Paris France Tel.: +33 1 43 13 33 33 Fax: +33 1 43 13 33 30 www.elra.info and www.elda.org Email: [email protected] and [email protected] Copyright by the European Language Resources Association ISBN 978-2-9517408-7-7 EAN 9782951740877 All rights reserved. No part of this book may be reproduced in any form without the prior permission of the European Language Resources Association ii Introduction of the Conference Chair Nicoletta Calzolari I wish first to express to Ms Neelie Kroes, Vice-President of the European Commission, Digital agenda Commissioner, the gratitude of the Program Committee and of all LREC participants for her Distinguished Patronage of LREC 2012. Even if every time I feel we have reached the top, this 8th LREC is continuing the tradition of breaking previous records: this edition we received 1013 submissions and have accepted 697 papers, after reviewing by the impressive number of 715 colleagues. -
ALW2), Pages 1–10 Brussels, Belgium, October 31, 2018
EMNLP 2018 Second Workshop on Abusive Language Online Proceedings of the Workshop, co-located with EMNLP 2018 October 31, 2018 Brussels, Belgium Sponsors Primary Sponsor Platinum Sponsors Gold Sponsors Silver Sponsors Bronze Sponsors ii c 2018 The Association for Computational Linguistics Order copies of this and other ACL proceedings from: Association for Computational Linguistics (ACL) 209 N. Eighth Street Stroudsburg, PA 18360 USA Tel: +1-570-476-8006 Fax: +1-570-476-0860 [email protected] ISBN 978-1-948087-68-1 iii Introduction Interaction amongst users on social networking platforms can enable constructive and insightful conversations and civic participation; however, on many sites that encourage user interaction, verbal abuse has become commonplace. Abusive behavior such as cyberbullying, hate speech, and scapegoating can poison the social climates within online communities. The last few years have seen a surge in such abusive online behavior, leaving governments, social media platforms, and individuals struggling to deal with the consequences. As a field that works directly with computational analysis of language, the NLP community is uniquely positioned to address the difficult problem of abusive language online; encouraging collaborative and innovate work in this area is the goal of this workshop. The first year of the workshop saw 14 papers presented in a day-long program including interdisciplinary panels and active discussion. In this second edition, we have aimed to build on the success of the first year, maintaining a focus on computationally detecting abusive language and encouraging interdisciplinary work. Reflecting the growing research focus on this topic, the number of submissions received more than doubled from 22 in last year’s edition of the workshop to 48 this year. -
Gold Standard Annotations for Preposition and Verb Sense With
Gold Standard Annotations for Preposition and Verb Sense with Semantic Role Labels in Adult-Child Interactions Lori Moon Christos Christodoulopoulos Cynthia Fisher University of Illinois at Amazon Research University of Illinois at Urbana-Champaign [email protected] Urbana-Champaign [email protected] [email protected] Sandra Franco Dan Roth Intelligent Medical Objects University of Pennsylvania Northbrook, IL USA [email protected] [email protected] Abstract This paper describes the augmentation of an existing corpus of child-directed speech. The re- sulting corpus is a gold-standard labeled corpus for supervised learning of semantic role labels in adult-child dialogues. Semantic role labeling (SRL) models assign semantic roles to sentence constituents, thus indicating who has done what to whom (and in what way). The current corpus is derived from the Adam files in the Brown corpus (Brown, 1973) of the CHILDES corpora, and augments the partial annotation described in Connor et al. (2010). It provides labels for both semantic arguments of verbs and semantic arguments of prepositions. The semantic role labels and senses of verbs follow Propbank guidelines (Kingsbury and Palmer, 2002; Gildea and Palmer, 2002; Palmer et al., 2005) and those for prepositions follow Srikumar and Roth (2011). The corpus was annotated by two annotators. Inter-annotator agreement is given sepa- rately for prepositions and verbs, and for adult speech and child speech. Overall, across child and adult samples, including verbs and prepositions, the κ score for sense is 72.6, for the number of semantic-role-bearing arguments, the κ score is 77.4, for identical semantic role labels on a given argument, the κ score is 91.1, for the span of semantic role labels, and the κ for agreement is 93.9. -
Using Morphemes from Agglutinative Languages Like Quechua and Finnish to Aid in Low-Resource Translation
Using Morphemes from Agglutinative Languages like Quechua and Finnish to Aid in Low-Resource Translation John E. Ortega [email protected] Dept. de Llenguatges i Sistemes Informatics, Universitat d’Alacant, E-03071, Alacant, Spain Krishnan Pillaipakkamnatt [email protected] Department of Computer Science, Hofstra University, Hempstead, NY 11549, USA Abstract Quechua is a low-resource language spoken by nearly 9 million persons in South America (Hintz and Hintz, 2017). Yet, in recent times there are few published accounts of successful adaptations of machine translation systems for low-resource languages like Quechua. In some cases, machine translations from Quechua to Spanish are inadequate due to error in alignment. We attempt to improve previous alignment techniques by aligning two languages that are simi- lar due to agglutination: Quechua and Finnish. Our novel technique allows us to add rules that improve alignment for the prediction algorithm used in common machine translation systems. 1 Introduction The NP-complete problem of translating natural languages as they are spoken by humans to machine readable text is a complex problem; yet, is partially solvable due to the accuracy of machine language translations when compared to human translations (Kleinberg and Tardos, 2005). Statistical machine translation (SMT) systems such as Moses 1, require that an algo- rithm be combined with enough parallel corpora, text from distinct languages that can be com- pared sentence by sentence, to build phrase translation tables from language models. For many European languages, the translation task of bringing words together in a sequential sentence- by-sentence format for modeling, known as word alignment, is not hard due to the abundance of parallel corpora in large data sets such as Europarl 2. -
A Massively Parallel Corpus: the Bible in 100 Languages
Lang Resources & Evaluation DOI 10.1007/s10579-014-9287-y ORIGINAL PAPER A massively parallel corpus: the Bible in 100 languages Christos Christodouloupoulos • Mark Steedman Ó The Author(s) 2014. This article is published with open access at Springerlink.com Abstract We describe the creation of a massively parallel corpus based on 100 translations of the Bible. We discuss some of the difficulties in acquiring and processing the raw material as well as the potential of the Bible as a corpus for natural language processing. Finally we present a statistical analysis of the corpora collected and a detailed comparison between the English translation and other English corpora. Keywords Parallel corpus Á Multilingual corpus Á Comparative corpus linguistics 1 Introduction Parallel corpora are a valuable resource for linguistic research and natural language processing (NLP) applications. One of the main uses of the latter kind is as training material for statistical machine translation (SMT), where large amounts of aligned data are standardly used to learn word alignment models between the lexica of two languages (for example, in the Giza?? system of Och and Ney 2003). Another interesting use of parallel corpora in NLP is projected learning of linguistic structure. In this approach, supervised data from a resource-rich language is used to guide the unsupervised learning algorithm in a target language. Although there are some techniques that do not require parallel texts (e.g. Cohen et al. 2011), the most successful models use sentence-aligned corpora (Yarowsky and Ngai 2001; Das and Petrov 2011). C. Christodouloupoulos (&) Department of Computer Science, UIUC, 201 N. -
A Corpus-Based Study of Unaccusative Verbs and Auxiliary Selection
To be or not to be: A corpus-based study of unaccusative verbs and auxiliary selection Master's Thesis Presented to The Faculty of the Graduate School of Arts and Sciences Brandeis University Department of Computer Science James Pustejovsky, Advisor In Partial Fulfillment of the Requirements for Master's Degree By Richard A. Brutti Jr. May 2012 c Copyright by Richard A. Brutti Jr. 2012 All Rights Reserved ABSTRACT To be or not to be: A corpus-based study of unaccusative verbs and auxiliary selection A thesis presented to the Department of Computer Science Graduate School of Arts and Sciences Brandeis University Waltham, Massachusetts Richard A. Brutti Jr. Since the introduction of the Unaccusative Hypothesis (Perlmutter, 1978), there have been many further attempts to explain the mechanisms behind the division in intransitive verbs. This paper aims to analyze and test some of theories of unac- cusativity using computational linguistic tools. Specifically, I focus on verbs that exhibit split intransitivity, that is, verbs that can appear in both unaccusative and unergative constructions, and in determining the distinguishing features that make this alternation possible. Many formal linguistic theories of unaccusativity involve the interplay of semantic roles and temporal event markers, both of which can be analyzed using statistical computational linguistic tools, including semantic role labelers, semantic parses, and automatic event classification. I use auxiliary verb selection as a surface-level indicator of unaccusativity in Italian and Dutch, and iii test various classes of verbs extracted from the Europarl corpus (Koehn, 2005). Additionally, I provide some historical background for the evolution of this dis- tinction, and analyze how my results fit into the larger theoretical framework. -
The Translation Equivalents Database (Treq) As a Lexicographer’S Aid
The Translation Equivalents Database (Treq) as a Lexicographer’s Aid Michal Škrabal, Martin Vavřín Institute of the Czech National Corpus, Charles University, Czech Republic E-mail: [email protected], [email protected] Abstract The aim of this paper is to introduce a tool that has recently been developed at the Institute of the Czech National Corpus, the Treq (Translation Equivalents) database, and to explore its possible uses, especially in the field of lexicography. Equivalent candidates offered by Treq can also be considered as potential equivalents in a bilingual dictionary (we will focus on the Latvian–Czech combination in this paper). Lexicographers instantly receive a list of candidates for target language counterparts and their frequencies (expressed both in absolute numbers and percentages) that suggest the probability that a given candidate is functionally equivalent. A significant advantage is the possibility to click on any one of these candidates and immediately verify their individual occurrences in a given context; and thus more easily distinguish the relevant translation candidates from the misleading ones. This utility, which is based on data stored in the InterCorp parallel corpus, is continually being upgraded and enriched with new functions (the recent integration of multi-word units, adding English as the primary language of the dictionaries, an improved interface, etc.), and the accuracy of the results is growing as the volume of data keeps increasing. Keywords: InterCorp; Treq; translation equivalents; alignment; Latvian–Czech dictionary 1. Introduction The aim of this paper is to introduce one of the tools that has been developed recently at the Institute of the Czech National Corpus (ICNC) and which could be especially helpful to lexicographers: namely, the Treq translation equivalents database1. -
Better Web Corpora for Corpus Linguistics and NLP
Masaryk University Faculty of Informatics Better Web Corpora For Corpus Linguistics And NLP Doctoral Thesis Vít Suchomel Brno, Spring 2020 Masaryk University Faculty of Informatics Better Web Corpora For Corpus Linguistics And NLP Doctoral Thesis Vít Suchomel Brno, Spring 2020 Declaration Hereby I declare that this paper is my original authorial work, which I have worked out on my own. All sources, references, and literature used or excerpted during elaboration of this work are properly cited and listed in complete reference to the due source. Vít Suchomel Advisor: Pavel Rychlý i Acknowledgements I would like to thank my advisors, prof. Karel Pala and prof. Pavel Rychlý for their problem insight, help with software design and con- stant encouragement. I am also grateful to my colleagues from Natural Language Process- ing Centre at Masaryk University and Lexical Computing, especially Miloš Jakubíček, Pavel Rychlý and Aleš Horák, for their support of my work and invaluable advice. Furthermore, I would like to thank Adam Kilgarriff, who gave me a wonderful opportunity to work for a leading company in the field of lexicography and corpus driven NLP and Jan Pomikálek who helped me to start. I thank to my wife Kateřina who supported me a lot during writing this thesis. Of those who have always accepted me and loved me in spite of my failures, God is the greatest. ii Abstract The internet is used by computational linguists, lexicographers and social scientists as an immensely large source of text data for various NLP tasks and language studies. Web corpora can be built in sizes which would be virtually impossible to achieve using traditional corpus creation methods. -
Book of Abstracts
Book of Abstracts - Journée d’études AFLiCo JET Corpora and Representativeness jeudi 3 et vendredi 4 mai 2018 Bâtiment Max Weber (W) Keynote speakers Dawn Knight et Thomas Egan Plus d’infos : bit.ly/2FPGxvb 1 Table of contents DAY 1 – May 3rd 2018 Thomas Egan, Some perils and pitfalls of non-representativeness 1 Daniel Henke, De quoi sont représentatifs les corpus de textes traduits au juste ? Une étude de corpus comparable-parallèle 1 Ilmari Ivaska, Silvia Bernardini, Adriano Ferraresi, The comparability paradox in multilingual and multi-varietal corpus research: Coping with the unavoidable 2 Antonina Bondarenko, Verbless Sentences: Advantages and Challenges of a Parallel Corpus-based Approach 3 Adeline Terry, The representativeness of the metaphors of death, disease, and sex in a TV show corpus 5 Julien Perrez, Pauline Heyvaert, Min Reuchamps, On the representativeness of political corpora in linguistic research 6 Joshua M. Griffiths, Supplementing Maximum Entropy Phonology with Corpus Data 8 Emmanuelle Guérin, Olivier Baude, Représenter la variation – Revisiter les catégories et les variétés dans le corpus ESLO 9 Caroline Rossi, Camille Biros, Aurélien Talbot, La variation terminologique en langue de spécialité : pour une analyse à plusieurs niveaux 10 Day 2 – May 4rd 2018 Dawn Knight, Representativeness in CorCenCC: corpus design in minoritised languages 11 Frederick Newmeyer, Conversational corpora: When 'big is beautiful' 12 Graham Ranger, How to get "along": in defence of an enunciative and corpus- based approach 13 Thi Thu Trang