Call for Papers

We invite submissions to the third biennial conference on Language, Data and Knowledge (LDK 2021), which will be held in Zaragoza, Spain in June 2021. This conference aims at bringing together researchers from across disciplines concerned with the acquisition, curation and use of language data in the context of data science and knowledge-based applications. This builds upon the success of the inaugural event held in Galway, Ireland in 2017 and the second LDK in Leipzig, Germany in 2019.

Paper submission
We welcome submission of relevance to the topics listed below. Submissions can be in the form of:

  • Long research papers: 10-15 pages;
  • Short research or position papers: 6-8 pages;
  • Short scientific abstract submissions: be 4-6 pages.
  • Short abstracts on new challenges and research ideas (“Crazy New Ideas”): 1-4 pages

This year, we would like to propose a “Crazy New Ideas” session that will be the occasion to present challenging research ideas that have not yet been fully explored, or you would like to see in ten years from now. Such ideas should be briefly presented in the form of a short abstract of one to four pages to initiate the discussions, which will also be included in the conference proceedings if permitted by the authors. This is your chance to be creative without censorship. Reviews for these abstract will focus on the potential of ideas to spark interesting discussions. 

All submissions lengths are given including references and optional appendices. Accepted submissions will be published by OASIcs in an open-access conference proceedings volume free of charge for authors. 

The OASIcs layout templates to be used for submissions are available for download from :
As the reviewing process is single-blind, submissions should not be anonymized.

Papers should be submitted via EasyChair at the following address:

For each submitted paper, one author is expected to attend the conference and present their work. There will be no registration fee administered for LDK 2021. 

Presentation format
Accepted submissions will be selected for oral or poster presentation based on recommendations from the reviewers. This decision will not reflect any difference in the quality of the papers, and there will be no distinction in the published volumes. 
Authors of accepted short papers and scientific abstract are welcome to present their work as a demo in addition to the regular presentation.
At least one author of each accepted paper must register to present the paper at the conference.

Language Data

  • Language data construction and acquisition
  • Language data annotation
  • Language data portals and metadata about language data
  • Organizational and infrastructural management of language data
  • Multilingual, multimedia and multimodal language data
  • Evaluation, provenance and quality of language data
  • Usability, validation and visualization of language data
  • Standards and interoperability of language data
  • Legal aspects of publishing language data
  • Typological databases
  • Under-resourced languages

Knowledge Graphs

  • Linguistic Linked Data and Multilingual Semantic Web
  • Ontologies, terminology, wordnets and lexical resources
  • Information and knowledge extraction (taxonomy extraction, ontology learning)
  • Data, information and knowledge integration across languages
  • (Cross-lingual) Ontology Alignment
  • Entity linking and relatedness
  • Linked Data profiling
  • Knowledge representation and reasoning
  • Knowledge graphs for corpora processing and analysis

Applications for Language, Data and Knowledge

  • Question answering and semantic search
  • Text analytics on Big Data
  • Semantic content management
  • Computer-aided Language Learning
  • Natural language interfaces to Big Data
  • Knowledge-based NLP
  • Deep Learning and Machine Learning for and on LLOD
  • Other applications

Use Cases in Language, Data and Knowledge

  • Social Sciences and Humanities research enabled by digital approaches: digital arts, architecture, music, film, theatre, new media, digital games and cyberculture
  • Geo-humanities, spatial analysis and applications of GIS for Humanities research
  • Digital media, digitisation, curation of digital objects
  • Annotation, analysis, enrichment of text archives
  • Text and data mining for Social Sciences and Humanities research
  • Visualisation of Social Sciences and Humanities research
  • Text and data mining of (bio)medical literature, including pandemics
  • Other specific domain use cases (e.g. FinTech, Cybersecurity,…) 

Keynote Speakers

We are very happy to announce Mikel Forcada, Universitat d’Alacant, Mathieu Lafourcade, University of Montpellier, and Sara Tonelli, Fondazione Bruno Kessler, as keynote speakers for LDK 2021. 

Important Dates
21 March 2021: Paper submission deadline
23 April 2021: Notification
14 May 2021: Camera-ready submission deadline
1 September 2021: Pre-conference events
2-3 September 2021: Main conference

All deadlines refer to anywhere-on-earth time.