NLDB 2022

15 - 17 June

The 27th International Conference on
Natural Language & Information Systems

About NLDB 2022

The 27th International Conference on Natural Language & Information Systems will be held at the Universitat Politècnica de València, Spain. Although we plan to organize the conference in an hybrid mode in order to allow the attendance to everybody, we would be delighted to host you in Valencia and count on you to have a fruitful and enjoyable conference. Since 1995, the NLDB conference brings together researchers, industry practitioners, and potential users interested in various application of Natural Language in the Database and Information Systems field. The term "Information Systems" has to be considered in the broader sense of Information and Communication Systems, including Big Data, Linked Data and Social Networks.

The field of Natural Language Processing (NLP) has itself recently experienced several exciting developments. In research, these developments have been reflected in the emergence of neural language models (Deep Learning, Word Embeddings, Transformers) and the importance of aspects such as transparency, bias and fairness, a (renewed) interest in various linguistic phenomena, such as in discourse and argumentation mining, and in new problems such as the detection of disinformation and hate speech in social media, as well of mental health disorders that increased during the recent pandemic. Regarding applications, NLP systems have evolved to the point that they now offer real-life, tangible benefits to enterprises. Many of these NLP systems are now considered a de-facto offering in business intelligence suites, such as algorithms for recommender systems and opinion mining/sentiment analysis.

It is against this backdrop of recent innovations in NLP and its applications in information systems that the 27th edition of the NLDB conference takes place. We welcome research and industrial contributions, describing novel, previously unpublished works on NLP and its applications across a plethora of topics as described in the Call for Papers.

Event Starts In:

Call for Papers

For full details, please have a look at the Call for Papers.

This year's edition of NLDB also introduces an Industry Track, to foster fruitful interaction between the industry and the research community.

Topics of interest include but are not limited to:

  • Social Media and Web Analytics: Opinion mining/sentiment analysis, irony/sarcasm detection; detection of fake reviews and deceptive language; detection of harmful information: fake news and hate speech; sexism and misogyny; detection of mental health disorders; identification of stereotypes and social biases; robust NLP methods for sparse, ill-formed texts; recommendation systems.

  • Deep Learning and eXplainable Artificial Intelligence (XAI): Deep learning architectures, word embeddings, transparency, interpretability, fairness, debiasing, ethics.

  • Argumentation Mining and Applications: Automatic detection of argumentation components and relationships; creation of resource (e.g. annotated corpora, treebanks and parsers); Integration of NLP techniques with formal, abstract argumentation structures; Argumentation Mining from legal texts and scientific articles.

  • Question Answering (QA): Natural language interfaces to databases, QA using web data, multi-lingual QA, non-factoid QA(how/why/opinion questions, lists), geographical QA, QA corpora and training sets, QA over linked data (QALD).

  • Corpus Analysis: multi-lingual, multi-cultural and multi-modal corpora; machine translation, text analysis, text classification and clustering; language identification; plagiarism detection; information extraction: named entity, extraction of events, terms and semantic relationships.

  • Semantic Web, Open Linked Data, and Ontologies: Ontology learning and alignment, ontology population, ontology evaluation, querying ontologies and linked data, semantic tagging and classification, ontology-driven NLP, ontology-driven systems integration.

  • Natural Language in Conceptual Modeling: Analysis of natural language descriptions, NLP in requirement engineering, terminological ontologies, consistency checking, metadata creation and harvesting.

  • Natural Language and Ubiquitous Computing: Pervasive computing, embedded, robotic and mobile applications; conversational agents; NLP techniques for Internet of Things (IoT); NLP techniques for ambient intelligence

  • Big Data and Business Intelligence: Identity detection, semantic data cleaning, summarisation, reporting, and data to text.

Please find details on how to submit your manuscripts in the submission guidelines

Important Dates

Full paper submission (EXTENDED): : 14 March, 2022

Paper notification (EXTENDED): 10 April, 2022

Camera-ready deadline (EXTENDED): 20 April, 2022

Conference: 15-17 June 2022


The early registration of ONE AUTHOR for each paper is compulsory in order to publish the paper in the conference proceedings. The registration for IN PERSON ATTENDANCE will cover also the meals of the days of the conference and the social dinner of 16/06/2022.

Early Registration (before 20/05/2022)
450 € (Regular)
400 € (Student)

Late Registration (after 20/05/2022)
550 € (Regular)
450 € (Student)

Early Registration (before 20/05/2022)
250 € (Regular)
200 € (Student)

Late Registration (after 20/05/2022)
300 € (Regular)
250 € (Student)

If you are interested in attending the conference, please complete the registration form using the link Registration page.

Submission Guidelines

Authors should follow the LNCS format ( and submit their manuscripts in pdf via Easychair (

Submissions can be full papers (12 pages maximum including references), short papers (8 pages including references) or papers for a poster presentation or system demonstration (6 pages including references). The programme committee may decide to accept some full papers as short papers or poster papers.

Papers can be submitted to either the main conference or the industry track. The reviewing process of NLDB 2022 is double-blind, i.e., submissions to the main conference and to the industry track must not contain author names or other identifying information, such as funding sources, acknowledgments and must use the third person to refer to work the authors have previously undertaken. System demonstration papers may not be anonymous.


Eneko Agirre
University of the Basque Country/
HiTZ Centre on Language Technology

Few-shot Information Extraction is here: Pre-train, prompt and entail

Abstract: Deep Learning has made tremendous progress in Natural Language Processing (NLP), where large pre-trained language models (PLM) fine-tuned on the target task have become the predominant tool. More recently, in a process called prompting, NLP tasks are rephrased as natural language text, allowing us to better exploit linguistic knowledge learned by PLMs and resulting in significant improvements. Still, PLMs have limited inference ability. In the Textual Entailment task, systems need to output whether the truth of a certain textual hypothesis follows from the given premise text. Manually annotated entailment datasets covering multiple inference phenomena have been used to infuse inference capabilities to PLMs.
This talk will review these recent developments, and will present an approach that combines prompts and PLMs fine-tuned for textual entailment that yields state-of-the-art results on Information Extraction (IE) using only a small fraction of the annotations. The approach has additional benefits, like the ability to learn from different schemas and inference datasets. These developments enable a new paradigm for IE where the expert can define the domain-specific schema using natural language and directly run those specifications, annotating a handful of examples in the process. A user interface based on this new paradigm will also be presented.
Beyond IE, inference capabilities could be extended, acquired and applied from other tasks, opening a new research avenue where entailment and downstream task performance improve in tandem.

Short Bio: Eneko Agirre is a Professor of Informatics and Head of HiTZ Basque Center of Language Technnology at the University of the Basque Country, UPV/EHU, in San Sebastian, Spain. He has been active in Natural Language Processing and Computational Linguistics for decades. He received the Spanish Informatics Research Award in 2021, and is one of the 74 fellows of the Association of Computational Linguistics (ACL). He was President of ACL's SIGLEX, member of the editorial board of Computational Linguistics, Journal of Artificial Intelligence Research and Action editor for the Transactions of the ACL. He is co-founder of the Joint Conference on Lexical and Computational Semantics (*SEM). Recipient of three Google Research Awards and five best paper awards and nominations. Dissertations under his supervision received best PhD awards by EurAI, the Spanish NLP society and the Spanish Informatics Scientific Association. He has over 200 publications across a wide range of NLP and AI topics. His research spans topics such as Word Sense Disambiguation, Semantic Textual Similarity, Unsupervised Machine Translation and resources for Basque. Most recently his research focuses on inference and deep learning language models.

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Lucie Flek
University of Marburg

User-centric Natural Language Understanding

Abstract: People express themselves in different ways – due to their individual characteristics, communication goals, cultural background, affinity to various sociodemographic groups, or just as a matter of personal style. Leveraging these differences can be beneficial for NLP applications. In this talk, I explore methods for interpreting the language together with its user-dependent aspects – personal history, beliefs, and social environment – and their effect on social NLP tasks.

Short Bio: Lucie Flek is an Associate Professor at the Philipps-Universität Marburg, leading the research group on Conversational AI and Social Analytics. She has been investigating how various individuals and sociodemographic groups differ in their language use, and how this variation can be in return used in machine learning tasks to predict in-group behavior of interest. Previously, she has managed natural language understanding research programs in Amazon Alexa. In her academic work at TU Darmstadt, Positive Psychology Center at University of Pennsylvania, and University College London, she has been focusing on psychological and social applications of stylistic variation insights. She has served as Area Chair for Computational Social Sciences at multiple ACL* conferences, and is a co-organizer of the Stylistic Variation workshop and Widening NLP. Before her research path in natural language processing, Lucie has been contributing to particle physics research in the area of axion searches.

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Industry Keynote

Ramit Sawhney
Tower Research Capital

Natural Language Processing for Industrial Financial Predictive Analysis and Stock Trading

Abstract: In the financial industry, risk modelling, trading strategy design, and profit generation heavily rely on accurately predicting stock movements. Stock movements are influenced by varied factors beyond the conventionally studied historical prices, such as social media and correlations among stocks. The rising ubiquity of online content and knowledge mandates an exploration of models that factor in such multimodal signals for accurate stock forecasting. In this talk, I introduce a set of modern AI and NLP-centric methods and techniques using alternate sources of data - social media text, financial disclosures, documents, and multimodal data such as audio from financial earnings calls for building financial models in the industry to trade stocks and cryptocurrency. I then delve into the architecture of these models - covering multimodal, sequential, and graph neural networks - and analyse them across a diverse spectrum of metrics through an industry lens - quantitative performance, profitability, qualitative analysis, computational complexity, gender bias, and improvements over conventional financial predictive analysis methods.

Short Bio: Ramit Sawhney is an engineering manager at Tower Research Capital, and a research associate at the Georgia Institute of Technology, AI Institute at the University of Southern Carolina, and the University of Marburg. Ramit's primary interests across his industrial and academic roles lie in Quantitative Finance, Natural Language Processing, and Deep Learning. Ramit's work in these areas has been presented at top-tier NLP and AI conferences including ACL, EMNLP, NAACL, AAAI, SIGIR, WSDM, WWW, EACL, ICASSP, IJCAI and more. Ramit also serves as an organizer, reviewer, and host across a wide variety of industry-focused research initiatives and conferences. Ramit started his career as a software engineer at Tower Research Capital after completing his undergraduate studies, and since then has focused on building technical infrastructure for financial use-cases.

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Video Keynotes

NLDB 2022 Keynote by Lucie flek
NLDB 2022 Keynote by Ramit Sawhney
NLDB 2022 Industry Track

Program Overview

For full details, please have a look at the Detailed Program.




    General Chairs:
  • Rosso Paolo, Universitat Politècnica de València, Spain
  • Métais Elisabeth, Conservatoire des Arts et Métiers, France
  • Meziane Farid, University of Derby, UK
    Program Chairs:
  • Basile Valerio, University of Turin, Italy
  • Martínez Raquel, UNED, Spain
    Organization Committee:
  • Chulvi Berta, Universitat Politècnica de València, Spain
  • Cubel Elsa, Universitat Politècnica de València, Spain
  • Ortega Bueno Reynier, Universitat Politècnica de València, Spain
    Programme Committee:
  • Akoka Jacky, CNAM & TEM, France
  • Anselma Luca, University of Turin, Italy
  • Bajaj Ahsaas, University of Massachusetts Amherst, USA
  • Balakrishna Mithun, Limba Corp, USA
  • Banerjee Somnath, University of Milano-Bicocca, Italy
  • Bensalem Imene, MISC Lab, Constantine 2 University, Algeria
  • Borg Claudia, University of Malta, Malta
  • Bosco Cristina, University of Turin, Italy
  • Braschler Martin, ZHAW School of Engineering, Switzerland
  • Buscaldi Davide, University Sorbonne Paris Nord, France
  • Cabrio Elena, Université Côte d’Azur, Inria, CNRS, I3S, France
  • Caselli Tommaso, Rijksuniversiteit Groningen, The Netherlands
  • Chiruzzo Luis, Universidad de la República, Uruguay
  • Cignarella Alessandra Teresa, University of Turin, Italy
  • Cimiano Philipp, Bielefeld University, Germany
  • Croce Danilo, University of Rome "Tor Vergata", Italy
  • Daelemans Walter, University of Antwerp, Belgium
  • Delgado Agustín, Universidad Nacional de Educación a Distancia, Spain
  • Dinu Liviu, University of Bucharest, Romania
  • Doucet Antoine, La Rochelle University, France
  • Fersini Elisabetta, University of Milano-Bicocca, Italy
  • Florio Komal, University of Turin, Italy
  • Fomichov Vladimir, Moscow Aviation Institute, Russia
  • Fornaciari Tommaso, Bocconi University Milan, Italy
  • Franco Marc, Symanto, Germany/Spain
  • Frasincar Flavius, Erasmus University Rotterdam, The Netherlands
  • Hacohen-Kerner Yaakov, Jerusalem College of Technology, Israel
  • Horacek Helmut, DFKI, Germany
  • Ienco Dino, IRSTEA, France
  • Iglesias Carlos A., Universidad Politécnica de Madrid, Spain
  • Ittoo Ashwin, HEC, Univ. of Liege, Belgium
  • Kapetanios Epaminondas, University of Hertfordshire, UK
  • Kedad Zoubida, UVSQ, France
  • Kop Christian, University of Klagenfurt, Austria
  • Koufakou Anna, Florida Gulf Coast University, USA
  • Laatar Rim, University of Sfax, Tunisia
  • Lai Mirko, University of Turin, Italy
  • Lonsdale Deryle W., Brigham Young University, USA
  • Lopez Cédric, Emvista, Montpellier, France
  • Loukachevitch Natalia, Moscow State University, Russia
  • Mandl Thomas, University of Hildesheim, Germany
  • Martínez Paloma, Universidad Carlos III de Madrid, Spain
  • Martínez Patricio, Universidad de Alicante, Spain
  • Martínez Unanue Raquel, Universidad Nacional de Educación a Distancia, Spain
  • Masmoudi Abir, LIUM, University of Le Mans, France
  • Mazzei Alessandro, University of Turin, Italy
  • Métais Elisabeth, Conservatoire des Arts et Métiers, France
  • Meziane Farid, University of Derby, UK
  • Mich Luisa, University of Trento, Italy
  • Mimouni Nada, Conservatoire des Arts et Métiers, France
  • Mitrović Jelena, University of Passau, Germany
  • Montalvo Soto, Universidad Rey Juan Carlos, Spain
  • Montes y Gómez Manuel, INAOE Puebla, Mexico
  • Monti Johanna, L'Orientale University of Naples, Italy
  • Muñoz Rafael, Universidad de Alicante, Spain
  • Nozza Debora, Bocconi University, Italy
  • Okky-Ibrohim Muhammad, University of Turin, Italy
  • Passaro Lucia, University of Pisa, Italy
  • Patti Viviana, University of Turin, Italy
  • Picca Davide, Columbia University, USA
  • Plaza Laura, Universidad Nacional de Educación a Distancia, Spain
  • Rangel Francisco, Symanto, Germany/Spain
  • Reyes Antonio, Autonomous University of Baja California, Mexico
  • Roche Mathieu, Cirad, TETIS, France
  • Rosso Paolo, Universitat Politècnica de València, Spain
  • Saggion Horacio, Universitat Pompeu Fabra, Spain
  • Sakketou Flora, Philipps-Marburg University
  • Sanguinetti Manuela, Università degli Studi di Cagliari, Italy
  • Silberztein Max, Université de Franche-Comté, France
  • Spina Damiano, RMIT University, Australia
  • Sprugnoli Rachele, Catholic University of the Sacred Heart Milan, Italy
  • Tagarelli Andrea, University of Calabria, Italy
  • Taulé Mariona, Universitat de Barcelona, Spain
  • Teisseire Maguelonne, Irstea, TETIS, France
  • Tomás David, Universidad de Alicante, Spain
  • Tonelli Sara, Fondazione Bruno Kessler, Italy
  • Tufis Dan, RACAI, Bucharest, Romania
  • Uban Ana Sabina, University of Bucharest, Romania
  • Ureña-López Alfonso, Universidad de Jaén, Spain
  • Vadera Sunil, University of Salford, UK
  • Valencia-Garcia Rafael, Universidad de Murcia, Spain
  • Vasudeva Varma, IIIT Hyderabad, India
  • Villatoro Esaú, Idiap Research Institute, Switzerland
  • Wattiau Isabelle, ESSEC, France
  • Zaghouani Wajdi, Hamad Bin Khalifa University, Qatar
  • Zubiaga Arkaitz, Queen Mary University of London, UK

Venue & Accommodation

ETS de Ingeniería Informática,

Universitat Politècnica de València

# Info Hotel Contact information Distance
1 Urban and near RENASA 11’ walking
2 University Residence GALILEO 5’ walking
3 University Residence COLEGIO MAYOR CONCEPCIÓN 18’ walking, 19’ by bus
4 In port avenue NH 38’ walking , 29’ by bus
5 Beach NEPTUNO 48’ walking , 26’ by tram
6 Beach SOL Y PLAYA 48’ walking , 26’ by tram
7 Beach LAS ARENAS 48’ walking , 26’ by tram
8 City center PLAZA MERCADO 44’ walking , 28’ by bus
9 City center PETIT PALACE 42’ walking , 22’ by bus
10 City center CASUAL VINTAGE 42’ walking , 23’ by bus
11 Old district ANTIGUA 42’ walking , 27’ by tram
12 Old district MORELLANA 41’ walking , 26' by tram
13 Near Arts and Sciece City ( SILKEN 23’ walking , 25’ by bus
14 Near Arts and Sciece City ( BARCELÓ 36’ walking , 40’ by bus