Dr Arben Hajra

Digital Information Infrastructures
T: +49 431 8814-613
Düsternbrooker Weg 120
24105 Kiel


  • Research assistant

Key activities

  • Information Retrieval, Machine Learning, Data mining, and Data Visualizations
  • Linked Open Data and Semantic Web Technologies
  • Author Name Disambiguation

Research focus

  • Enriching Digital Library resources by crosslinking library and non-library information from different sources

Professional background

  • 2020
    Ph.D., Computer Science, University of Kiel, Germany
  • since 2018
    Research assistant at ZBW - Leibniz Information Centre for Economics
  • 2005-2018
    Lecturer at Faculty of Contemporary Sciences and Technologies, South-East European University, North Macedonia
  • 2005-2009
    Master of Science (M.Sc.), Computer Sciences, South-East European University, North Macedonia
  • 2001-2004
    Bachelor of Science (B.Sc.), Communication Sciences and Technologies (Computer Sciences), South-East European University, North Macedonia


Articles (peer reviewed)

Limani, Fidan / Hajra, Arben / Ferati, Mexhid / Radevski, Vladimir
Research data repository requirements: A case study from universities in North Macedonia
In: International Journal of Knowledge Content Development & Technology - Chungju, Republic of Korea: Research Institute for Knowledge Content Development & Technology (RIKCDT), ISSN 2287-187X, Vol. 13 (2023), No. 1, pp. 75-100, doi:10.5865/IJKCT.2023.13.1.075 Link to fulltext (PDF)
Pianos, Tamara / Hajra, Arben
Automatisch erzeugte Author Profiles als Grundlage für eine Themenseite zur Corona-Krise
In: ABI Technik - Berlin: De Gruyter, ISSN 0720-6763, Vol. 41 (2021), No. 1, pp. 13-20, doi:10.1515/abitech-2021-0004 Link to fulltext (PDF)
Hajra, Arben / Tochtermann, Klaus
Linking science: approaches for linking scientific publications across different LOD repositories
In: International Journal of Metadata, Semantics and Ontologies - Olney, Bucks: Inderscience, ISSN 1744-263X, Vol. 12 (2017), No. 2/3, pp. 124-141, doi:10.1504/IJMSO.2017.10011833 Link to fulltext (PDF)

Conference Papers (peer reviewed)

Hajra, Arben / Pianos, Tamara / Tochtermann, Klaus
Linking Author Information: EconBiz Author Profiles
In: Metadata and Semantic Research 14th International Conference, MTSR 2020, Madrid, Spain, December 2–4, 2020, Revised Selected Papers, Communications in Computer and Information Science, Cham: Springer Nature Switzerland, 2021, pp. 180-191, doi:10.1007/978-3-030-71903-6_18 Link to fulltext (PDF)
Limani, Fidan / Hajra, Arben / Mexhid, Ferati / Radevski, Vladimir
Requirements and Recommendations for University Research Data Repository: A Case Study
In: Proceedings of the IADIS International Conference e-Society 2020, Virtual Conference, 2 to 4 April 2020 Lisbon: IADIS, 2020, pp. 51-58 Link to fulltext (PDF)
Hajra, Arben / Tochtermann, Klaus
Visual Search in Digital Libraries and the Usage of External Terms
In: 2018 22nd International Conference Information Visualisation (IV), Fisciano, Italy, 10-13 July 2018 New York: IEEE, 2018, pp. 396-400, doi:10.1109/iV.2018.00074 Link to fulltext (PDF)
Hajra, Arben / Tochtermann, Klaus
Enriching Scientific Publications from LOD Repositories Through Word Embeddings Approach
In: Metadata and Semantics Research. MTSR 2016, Communications in Computer and Information Science, Cham: Springer, 2016, pp. 278-290, doi:10.1007/978-3-319-49157-8_24 Link to fulltext (PDF)
Hajra, Arben / Radevski, Vladimir / Tochtermann, Klaus
Author Profile Enrichment for Cross-linking Digital Libraries
In: Research and Advanced Technology for Digital Libraries. 19th International Conference on Theory and Practice of Digital Libraries, TPDL 2015, Poznan, Poland, September 14-18, 2015, Proceedings Cham, Switzerland: Springer International Publishing, 2015, pp. 124-136, doi:10.1007/978-3-319-24592-8_10 Link to fulltext (PDF)
Hajra, Arben / Latif, Atif / Tochtermann, Klaus
Retrieving and Ranking Scientific Publications from Linked Open Data Repositories
In: Proceedings of 14th International Conference on Knowledge Technologies and Data-driven Business - i-KNOW '14. Graz, Austria. 16-19 September 2014 New York: Association for Computing Machinery (ACM), 2014, pp. 29:1-29:4, doi:10.1145/2637748.2638436 Link to fulltext (PDF)

Monographs (Author)

Hajra, Arben
Content Enrichment of Digital Libraries: Methods, Technologies and Implementations
Kiel: Christian-Albrechts-Universität,2020 Link to fulltext (PDF)