Databases and Information Systems
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Victor Anthony Arrascue Ayala

Institut für Informatik
Albert-Ludwigs-Universität Freiburg
Georges-Köhler-Allee 51
79110 Freiburg i. Br., Germany
Office:   051-01-028

phone:   +49 (761) 203-8127
fax:        +49 (761) 203-8122

About me

Research Interests

  • Cross-domain Recommender Systems
  • Semantic Web (RDF storage, SPARQL evaluation, Linked Data)
  • Distributed Computing (Spark)
  • Route planning

Master Thesis

  • ReSPARQL: a SPARQL Extension for Generic Recommendations on RDF-graphs.pdf ]
    February 2014. University of Freiburg (Germany)

Current Research Projects


  • Victor Anthony Arrascue Ayala, Kemal Cagin Gülsen, Marco Muñiz, Anas Alzogbi, Michael Färber, Georg Lausen:
    A Delay-Robust Touristic Plan Recommendation Using Real-World Public Transportation Information..pdf ]
    In Proc. of the Workshop on Recommenders in Tourism (RecTour 2017) at the 11th ACM Conference on Recommender Systems (RecSys 2017). Como, Italy, August 27th, 2017
  • Victor Anthony Arrascue Ayala, Trong-Nghia Cheng, Anas Alzoghbi, Georg Lausen:
    Learning to Identify Complementary Products from DBpedia..pdf ]
    In Proc. of the Workshop on Linked Data on the Web (LDOW 2017) at the 26th International World Wide Web Conference (WWW 2017). Perth, WA, Australia, April 3rd, 2017
  • Anas Alzoghbi, Victor Anthony Arrascue Ayala, Peter M Fischer, Georg Lausen:
    Learning-toRank in research paper CBF recommendation: Leveraging irrelevant papers.pdf ]
    In Proc. of the 3rd Workshop on New Trends in Content-Based Recommender Systems (CBRecSys 2016) co-located with ACM Conference on Recommender Systems (RecSys 2016). Boston, MA, USA, September 16, 2016
  • Anas Alzoghbi, Victor Anthony Arrascue Ayala, Peter M Fischer, Georg Lausen:
    PubRec: Recommending Publications Based On Publicly Available Meta-Data.pdf ]
    In Proc. of the LWA 2015 Workshops: KDML, FGWM, IR, and FGDB. Trier, Germany, October 7-9, 2015
  • Victor Anthony Arrascue Ayala, Anas Alzoghbi, Martin Przyjaciel-Zablocki, Alexander Schätzle, Georg Lausen:
    Speeding up Collaborative Filtering with Parametrized Preprocessing.pdf ]
    Proc. of the 6th International Workshop on Social Recommender Systems (SRS 2015),
    in conjunction with the 2015 ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD 2015). Sydney, Australia, August 2015.
  • Victor Anthony Arrascue Ayala, Martin Przyjaciel-Zablocki, Thomas Hornung, Alexander Schätzle, Georg Lausen:
    Extending SPARQL for Recommendations.pdf ]
    Proc. of the 6th International Workshop on Semantic Web Information Management (SWIM 2014),
    in conjunction with the 2014 ACM International Conference on Management of Data (SIGMOD 2014). Snowbird, Utah (USA), June 2014.


  • Recommender Systems and SPARQL: More than a Shotgun Wedding?
    8th Alberto Mendelzon International Workshop (AMW 2014). Cartagena (CO), June 2014.