Anastasia Krithara

Post-Doc Researcher at IIT of NCSR "Demokritos" in Athens, Greece.
Member of Software and Knowledge Engineering Laboratory (SKEL).

SKEL groups:
Head of Biomedical and Health Informatics (BioHIT),
Member of Content Analysis and Knowledge Technologies (CAKT),
Member of Personalization and Social Network Analysis (PerSoNA).

General Secretary of Hellenic Artificial Intelligence Society (EETN).

Research Interests - keywords: machine learning, artificial intelligence, bioinformatics, information extraction, knowledge discovery, ontology learning, Web mining.

Selected publications

  • 10. A. Nentidis, A. Krithara, G. Tsoumakas, G. Paliouras. "Beyond MeSH: Fine-Grained Semantic Indexing of Biomedical Literature Based on Weak Supervision". Information Processing and Management journal (2020). (to appear)
  • 9. A. Nentidis, K. Bougiatiotis, A. Krithara, G. Paliouras. "iASiS Open Data Graph: Automated Semantic Integration of Disease-Specific Knowledge". IEEE 33rd International Symposium on Computer Based Medical Systems (CBMS) 2020.
  • 8. A. Hanbury, H. Müller, K. Balog, T. Brodt, G. V Cormack, I. Eggel, T. Gollub, F. Hopfgartner, J. Kalpathy-Cramer, N. Kando, A. Krithara, J. Lin, S. Mercer, M. Potthast, "Evaluation-as-a-Service: Overview and outlook", ACM Journal of Data and Information Quality, 10 (4). 15. ISSN 1936-1955 (2018). (Pdf)
  • 7. F. Kollintza-Kyriakoulia, M. Maragoudakis and A. Krithara. "Measuring the Impact of Financial News and Social Media on Stock Market Modeling Using Time Series Mining Techniques". Algorithms, 11(11), 181 (2018). (Publisher's online version)
  • 6. S. Kazantzidis, A. Krithara and G. Paliouras. "Splice Site Prediction: Transferring knowledge across organisms". The 10th International Joint Conference on Biomedical Engineering Systems and Technologies (BIOINFORMATICS). Porto, Portugal, (2017). (Publisher's online version)
  • 5. A. Krithara, G. Giannakopoulos, G. Paliouras, G. Petasis & V. Karkaletsis. “Predicting Sentiment using Tranfer Learning”. In Proceedings of the Adaptive NLP Workshop/ 15th International Conference on Artificial Intelligence, Buenos Aires, Argentina, (2015). (Pdf)
  • 4. G. Tsatsaronis, G. Balikas, P. Malakasiotis, I. Partalas, M. Zschunke, M.R. Alvers, D. Weissenborn, A. Krithara, S. Petridis, D. Polychronopoulos, Y. Almirantis, J. Pavlopoulos, N. Baskiotis, P. Gallinari, T. Artieres, A. Ngonga, N. Heino, E. Gaussier, L. Barrio-Alvers, M. Schroeder, I. Androutsopoulos and G. Paliouras, An overview of the BIOASQ large-scale biomedical semantic indexing and question answering competition, BMC Bioinformatics, v. 16, n. 138 (2015). (Publisher's online version) (pdf preprint)
  • 3. A. Krithara, G. Paliouras. TL-PLSA: Transfer Learning between Domains with Different Classes. IEEE International Conference on Data Mining series (ICDM), Dallas, Texas, December 2013. ( Publisher's online version)
  • 2. A. Krithara, M. Amini, C. Goutte and J.M. Renders. Learning Aspect Models with Partially Labeled Data. Pattern Recognition Letters -Elsevier. (2011). ( Publisher's online version)
  • 1. G. Petasis, V. Karkaletsis, G.Paliouras, A. Krithara and I. Zavitsanos. Ontology Population and Enrichment: State of the art. Book chapter in Knowledge-Driven Mulitmedia Informaton Extraction and Ontology Evolution". Lecture Notes in Computer Science, Springer. (2011). ( Publisher's online version)

Current projects


Integration and analysis of heterogeneous big data for precision medicine and suggested treatments for different types of patients.


A challenge on large-scale biomedical semantic indexing and question answering


  • 27/04/2020: Due to the COVID-19 pandemic the AthNLP2020 Summer School (26/08 - 1/09) has been postponed for September 2021 in Athens.
    read more
  • 25/04/2020: Our paper “Beyond MeSH: Fine-Grained Semantic Indexing of Biomedical Literature based on Weak Supervision” has been accepted in the Information Processing and Management journal.
  • 25/04/2020: Our paper “iASiS Open Data Graph: Automated Semantic Integration of Disease-Specific Knowledge" has been accepted in the IEEE CBMS 2020.
    read more
  • 26/02/2020: The 1st Interdisciplinary Artificial Intelligence Conference will take place March 30th-31th, Technopolis City of Athens, Greece.
    read more
  • 11/02/2020: Participated as a mentor in the "Inspiring Future Women in Science Event",Stavros Niarchos Foundation Cultural Centre (SNFCC), Greece.
    read more
  • 12/09/2019: The 1st AthNLP 2019 will take place September 18th-25th, NCSR “Demokritos”, Greece.
    read more
  • 03/08/2019: The 7th BioASQ Workshop will be held as part of ECMLPKDD Conference on 20th September 2019.
    read more
  • 05/06/2019: Our paper “Beyond MeSH: Fine-Grained Semantic Indexing of Biomedical Literature based on Weak Supervision” has been accepted in the 32nd IEEE CBMS International Symposium on Computer-Based Medical Systems, Cordoba, Spain, 2019.
    read more
  • 19/04/2019: The 2nd Big Data for Precision Medicine Symposium (BDPM 2019) co-organized by iASiS project in June.
    read more
  • 06/11/2018: Our article "Measuring the Impact of Financial News and Social Media on Stock Market Modeling Using Time Series Mining Techniques" has been published in Journal "Algorithms" as part of the Special Issue "Humanistic Data Mining: Tools and Applications"
    read more
  • 03/11/2018: Our article "Evaluation-as-a-Service: Overview and outlook" has been published in ACM Journal of Data and Information Quality.
    read more
  • 01/11/2018: BioASQ Workshop will be held in EMNLP 2018 conference, Brussels, Belgium.
    read more
  • 30/10/2018: Talk about iASiS and BigMedilytics projects in "Horizon 2020 - EU Partnering Event", Brussels, Belgium.
    read more
  • 11/07/2018: Project iASiS is organizing the International Symposium on Big Data for Precision Medicine, which will be held as part of the 6th Hellenic Forum for Science Technology and Innovation, in NCSR "Demokritos", Athens, Greece.
    read more
  • 03/07/2018: Talk about Precision Medicine on the 53th Summer School of NCSR "Demokritos".
    read more


  • 2017-today: Teaching "Machine learning" at the MSc in "Data Science" . NCSR "Demokritos -University of Peloponnese.
  • 2017-2019: Teaching "Natural language analytics" at the MSc in "Data Science" . NCSR "Demokritos -University of Peloponnese.
  • 2015-2018: Teaching "Biomedical databases and information extraction" at the MSc in "Information Technologies in Medicine and Biology" . University of Athens.
  • 2011-2012: Teaching "Machine Learning and Data Mining" and "Data visualization" at the Study abroad program. UTA-NCSR "Demokritos"- Aegean University - Marine Conservation, Research Institute “Archipelagos”.
  • 2009: Teaching assistant, "Information Extraction from Text" at “Technoglossia”. Interdisciplinary Interuniversity Postgraduate Course in Language Technologies. UΟA-NTUA-ILSP –NCSR “Demokritos”.

Supervising BSc/MSc theses

Other activities

Curriculum Vitae


  • PhD in artificial intelligence, Pierre et Marie Curie (Paris VI) University, Paris, France, 2008
  • Thesis: Semi-supervised and active learning for text classification. Supervisors: Prof. Patrick Gallinari, Dr. Jean-Michel Renders, Prof. Massih-Reza Amini.
    PhD scholarship (Conventions Industrielles de Formation par la REcherche - CIFRE GRANT) of the French center of research and technology (ANRT – Association Nationale de la Recherche et de la Technologie).
  • MSc in Advanced computer science (Machine Learning and Data Mining), Bristol University, Department of informatics, Bristol, UK, 2004
  • Thesis: Semantic classification. Supervisors: Dr. Steve Cayzer, Prof. Peter Flach.
    In collaboration with HP labs, Bristol.
  • BSc in informatics, Department of Informatics, Athens University of Economics and Business, Athens, Greece, 2003

Working Experience

  • 2008 – today: Postdoctoral researcher, Institute of Informatics and Telecommunications, National Center for Scientific Research (NCSR) “Demokritos”
  • Research and Development in the context of the EU and national projects.
  • 2009-2012: External consultant (part time), “BYTE COMPUTER ABEE” company.
  • Project bids and management.
  • 2005 – 2008: Researcher, Xerox Research Center Europe (XRCE), Grenoble, France.
  • Research and development in the following areas: Machine learning, information extraction, document classification.
  • 2004 (6 months): Internship (research student), HP research labs, Bristol, UK.
  • Research and development: Machine learning, semantic web, document classification.

Short CV

  • Dr Anastasia Krithara has been a post-doctoral researcher in the Institute of Informatics and Telecommunications at NCSR "Demokritos" since October 2008. She is a member of the Software and Knowledge Engineering Laboratory (SKEL), and the head of the Biomedical and Health Informatics Team (BioHIT). Before, she was a research engineer in Xerox Research Centre Europe, in Grenoble, France, where she carried out research in the area of machine learning. She holds a BSc in Computer Science from Athens University of Economics and Business, an MSc in Machine Learning and Data Mining from University of Bristol and a PhD in Machine Learning from Pierre and Marie Curie University (Paris VI). Her research interests include Machine Learning, Information Retrieval, Bioinformatics, Knowledge Engineering and Natural Language Processing. She is program committee member of several international conferences and workshops and her work has been published in international journals, conferences and books. She is involved in many European and national research projects and she has the technical coordinator role in some of them. In particular, she was the depute coordinator of the FP7 project BioASQ and she is currently the technical coordinator of the H2020 project iASiS. She has supervised more than 25 student theses and internships the last 10 years. She is teaching postgraduate courses and she has co-organised the International Research-centered Summer Schools (IRSS-2013 and IRSS-2014), the Athens Natural Language Processing Summer Schools (AthNLP 2019 and AthNLP 2020), as well as the BioASQ challenges and workshops. She is currently the general secretary of the Hellenic Artificial Intelligence Society (EETN).

Anastasia Krithara
Institute of Informatics & Telecommunications
NCSR "Demokritos"
P.O. BOX 60037
Ag. Paraskevi, 15310
Athens, Greece

Tel: +30 21 06503172
Fax: +30 21 06532175