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A review on Relation Extraction with an eye on Portuguese

Sandra Collovini de Abreu, Tiago Luis Bonamigo, Renata Vieira
2013 Journal of the Brazilian Computer Society  
We present a review of the state-of-the-art for Relation Extraction in free texts, addressing the progress and difficulties of the area, and situating Portuguese in that frame.  ...  We also give special attention to the literature for Portuguese tools, which need further progress.  ...  We thank the Brazilian funding agency FAPERGS/CAPES for the scholarship granted.  ... 
doi:10.1007/s13173-013-0116-8 fatcat:rxrt7yieija3hndl7qzhazdtqq

Recognizing Textual Entailment: Challenges in the Portuguese Language

Gil Rocha, Henrique Lopes Cardoso
2018 Information  
In addition, we conclude that semantic-based approaches are promising in this task, and that combining data from European and Brazilian Portuguese is less straightforward than it may initially seem.  ...  ) and paraphrases from text written in the Portuguese language, by employing supervised machine learning techniques.  ...  Henrique Lopes Cardoso has supervised the work, namely for defining the methods proposed, designing the experimental settings and analyzing results.  ... 
doi:10.3390/info9040076 fatcat:e7n6olpwvjbbjpo3wjss5wkoxy

Crossing the Conversational Chasm: A Primer on Natural Language Processing for Multilingual Task-Oriented Dialogue Systems [article]

Evgeniia Razumovskaia, Goran Glavaš, Olga Majewska, Edoardo M. Ponti, Anna Korhonen, Ivan Vulić
2021 arXiv   pre-print
In task-oriented dialogue (ToD), a user holds a conversation with an artificial agent to complete a concrete task.  ...  On the other hand, their effectiveness beyond these boundaries is doubtful or hard to assess due to the lack of linguistically diverse benchmarks (especially for natural language generation and end-to-end  ...  Acknowledgments Evgeniia Razumovskaia is supported by a scholarship from Huawei.  ... 
arXiv:2104.08570v2 fatcat:bi5xizz4wzct5fpiuk3ikotjta

A Design Proposal of an Online Corpus-Driven Dictionary of Portuguese for University Students

Tanara Zingano Kuhn
2019 Journal of Portuguese Linguistics  
benchmark.  ...  Furthermore, the undertaking of this PhD project in Portugal by a Brazilian researcher, under the supervision of Portuguese linguists, reveals the underlying motto of my research: to strengthen the academic  ... 
doi:10.5334/jpl.209 fatcat:ofqxdeezmnav3mzbujrgmzt3j4

Social Media Text Processing and Semantic Analysis for Smart Cities [article]

João Filipe Figueiredo Pereira
2017 arXiv   pre-print
We then use a combination of bag-of-embeddings and traditional bag-of-words to train travel-related classifiers in both Portuguese and English to filter travel-related content from non-related.  ...  in a period of 3 months.  ...  Acknowledgements First of all, my deep gratitude to my friends for being on my side when I was a bit down.  ... 
arXiv:1709.03406v1 fatcat:styrizf3k5caxoh33xqaonkpye

Robust Complaint Processing in Portuguese

Henrique Lopes-Cardoso, Tomás Freitas Osório, Luís Vilar Barbosa, Gil Rocha, Luís Paulo Reis, João Pedro Machado, Ana Maria Oliveira
2021 Information  
This paper exposes a set of challenges encountered when dealing with a real-world complex NLP problem, based on user-generated complaint data in Portuguese.  ...  However, most achievements are evaluated on benchmarked curated corpora, with little attention devoted to user-generated content and less-resourced languages.  ...  An additional set of 28,838 unannotated sentences was included in the corpus, with the aim of enabling the usage of semi-supervised approaches.  ... 
doi:10.3390/info12120525 fatcat:q4qf5lotvfecfek5k6woar7q5i

A Multi-Lingually Applicable Journalist Toolset For The Big-Data Era

G. Kiomourtzis, G. Giannakopoulos, V. Karkaletsis, A. Kosmopoulos
2016 Zenodo  
This research was supported in part by a Discovery and Innovation Research Seed award from the Office of the Vice Provost for Research at Cornell.  ...  the language used in Portuguese newspapers than that used in Brazilian newspapers.  ...  They performed semantic role labeling on sentences to extract features based on ngrams and trained a classifier to classify a sentence as future referenced or not.  ... 
doi:10.5281/zenodo.1242850 fatcat:nfkqg7jhjffdvgezdjzc6xxppa

Without lexicons, multiword expression identification will never fly: A position statement

Agata Savary, Silvio Cordeiro, Carlos Ramisch
2019 Proceedings of the Joint Workshop on Multiword Expressions and WordNet (MWE-WN 2019)  
Because most multiword expressions (MWEs), especially verbal ones, are semantically non-compositional, their automatic identification in running text is a prerequisite for semantically-oriented downstream  ...  We define requirements for such a minimal NLP-oriented lexicon, and we propose a roadmap for the MWE community driven by these requirements.  ...  a seen MWE and maintain a direct dependency relation, whatever the label and direction of this dependency.  ... 
doi:10.18653/v1/w19-5110 dblp:conf/mwe/SavaryCR19 fatcat:d5rovrbxhnapno7ncnon45noay

Multi-word Entity Classification in a Highly Multilingual Environment

Sophie Chesney, Guillaume Jacquet, Ralf Steinberger, Jakub Piskorski
2017 Proceedings of the 13th Workshop on Multiword Expressions (MWE 2017)  
The program also included a panel discussion on the future directions of the MWE community and the SIGLEX Section.  ...  and integrate richer arc labels and nonflat structures to predict internal MWE structure.  ...  Juan de la Cierva formación grant (FJCI-2014-22853), and by a postdoctoral fellowship granted by the Galician Government (POS-A/2013/191).  ... 
doi:10.18653/v1/w17-1702 dblp:conf/mwe/ChesneyJSP17 fatcat:bv7aavgth5eurmzuphuowtuuhq

Program Committee

2006 2006 Sixth IEEE International Workshop on Source Code Analysis and Manipulation  
The program combined the main conference with a special day on wordnets and word-embeddings and finished with a half day workshop on technology enhanced learning (TEL).  ...  of Hamburg) and Using a Grammar Implementation to Teach Writing Skills by Dan Flickinger (Stanford).  ...  Acknowledgments We wish to thank Georgia Sanna for the first joint analysis about the possibility of creating a wordnet for the Sardinian language.  ... 
doi:10.1109/scam.2006.23 dblp:conf/scam/X06c fatcat:2dhsf7loj5hlffu2jxpmlo2qcq

FarsTail: A Persian Natural Language Inference Dataset [article]

Hossein Amirkhani, Mohammad AzariJafari, Zohreh Pourjafari, Soroush Faridan-Jahromi, Zeinab Kouhkan, Azadeh Amirak
2021 arXiv   pre-print
A carefully designed multi-step process is adopted to ensure the quality of the dataset.  ...  The samples are generated from 3,539 multiple-choice questions with the least amount of annotator interventions in a way similar to the SciTail dataset.  ...  including a collection of 10,000 pairs, half in Brazilian Portuguese and half in European Portuguese. • XNLI [9] : This dataset was developed for evaluating the cross-lingual understanding capabilities  ... 
arXiv:2009.08820v2 fatcat:bpel5fhq3jhmfph2aldk5l2ocu

Entity Retrieval and Text Mining for Online Reputation Monitoring [article]

Pedro Saleiro
2018 arXiv   pre-print
As such, we propose the inclusion of entity retrieval capabilities as a first step towards the extension of current ORM capabilities.  ...  This is a challenging problem which traditional entity search systems cannot cope with.  ...  As expected, this reduces the generality of the model, as it is biased towards a specific domain. Supervised learning approaches require training data.  ... 
arXiv:1801.07743v1 fatcat:f56lljaavnd6zm4vnngs2m3tga

Recent Advances

Guangya Chen, Shengjie Li, Jiuping Xu, Xinmin Yang
2018 Journal of Optimization Theory and Applications  
We used a supervised learning algorithm implemented by the CRF++ Package 6 .  ...  If a certain amount of linguistic similarity is found in a text passage with a lexicalized label, this text segment can then be semantically annotated with the concepts the label is associated with.  ...  Towards a System for Dynamic Language Resources in LOD Combined analysis of news and Twitter messages Mian Du Jussi Kangasharju Ossi Karkulahti Lidia Pivovarova Roman Yangarber University of Helsinki,  ... 
doi:10.1007/s10957-018-1316-3 fatcat:6mmzisl7jbhsvi5dhblc3jqimq

Over a Decade of Social Opinion Mining [article]

Keith Cortis, Brian Davis
2020 arXiv   pre-print
Such multi-source information fusion plays a fundamental role in mining of people's social opinions from social media platforms.  ...  A thorough systematic review was carried out on Social Opinion Mining research which totals 485 studies and spans a period of twelve years between 2007 and 2018.  ...  The first column in- dicates the algorithm, the second lists the type of learning algorithm, in terms of Supervised (Sup), Unsupervised (Unsup) and Semi-supervised (Semi-sup), which result corresponds  ... 
arXiv:2012.03091v1 fatcat:bm5nydbdvbalzi33l3w2ivkdja

AUSTRAL: v.2, n.3 (2013)

Paulo Visentini
2013 Austral  
All of the contributions will be subjected to a scientific review.  ...  The journal publishes original articles and book reviews in English, Portuguese or Spanish about themes that lie in the vast area of Strategy and International Relations, with special interest in issues  ...  The trajectory could well be toward a vision of building global integration from south to north.  ... 
doi:10.22456/2238-6912.37107 fatcat:z3didvoykvagrkrzql5qzet7lu
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