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Martin Przyjaciel-Zablocki


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

e-mail:  
phone:   +49 (761) 203-8126
fax:        +49 (761) 203-8122

About me

Research Interests

  • Semantic Web (RDF, SPARQL, ...)
  • Navigational Querying on Large RDF-Graphs
  • Distributed Storage and Processing Frameworks (Spark, Impala, Hadoop, MapReduce, Cassandra, ...)
  • Recommender Systems

Current Research Projects

Publications

  • Martin Przyjaciel-Zablocki, Alexander Schätzle, Georg Lausen:
    TriAL-QL: Distributed Processing of Navigational Queries.pdf ] (Best Paper Runner-Up Award)
    Proc. of 18th International Workshop on the Web and Databases (WebDB 2015)
    at SIGMOD 2015. Melbourne (Australia), June 2015.
  • Martin Przyjaciel-Zablocki, Alexander Schätzle, Adrian Lange:
    TriAL-QL: Distributed Processing of Navigational Queries.pdf ]
    Proc. of the 9th Alberto Mendelzon International Workshop on Foundations of Data Management (AMW 2015)
    Lima (Peru), May 2015.
  • Alexander Schätzle, Martin Przyjaciel-Zablocki, Antony Neu, Georg Lausen:
    Sempala: Interactive SPARQL Query Processing on Hadoop.pdf ]
    Proc. of the 13th International Semantic Web Conference (ISWC 2014). Riva del Garda (Italy).
  • Martin Przyjaciel-Zablocki, Thomas Hornung, Alexander Schätzle, Sven Gauß, Io Taxidou, Georg Lausen:
    MUSE: A Music Recommendation Management System.pdf ] [ Poster ]
    Proc. of the 15th International Society for Music Information Retrieval Conference (ISMIR 2014). Taipei (Taiwan), October 2014
  • Cai-Nicolas Ziegler, Thomas Hornung, Martin Przyjaciel-Zablocki, Sven Gauß, Georg Lausen:
    Music Recommenders Based on Hybrid Techniques and Serendipity.pdf ]
    Journal: Web Intelligence and Agent Systems (WIAS) 12(3):235-248 (2014)
  • Alexander Schätzle, Martin Przyjaciel-Zablocki, Thomas Hornung, Georg Lausen:
    Large-Scale RDF Processing with MapReduceBook ]
    Large Scale and Big Data - Processing and Management 2014: 151--182. Auerbach Publications 2014
  • 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 SIGMOD 2014. Snowbird, Utah (USA), June 2014.
  • Martin Przyjaciel-Zablocki, Alexander Schätzle, Eduard Skaley, Thomas Hornung, Georg Lausen:
    Map-Side Merge Joins for Scalable SPARQL BGP Processing.pdf ]
    5th IEEE International Conference on Cloud Computing Technology and Science Proceedings, (CloudCom 2013). Bristol (UK).
  • Alexander Schätzle, Martin Przyjaciel-Zablocki, Thomas Hornung, Georg Lausen:
    PigSPARQL: A SPARQL Query Processing Baseline for Big Data.pdf ] [ Poster ]
    Proc. of the ISWC 2013 Posters & Demonstrations Track (ISWC 2013). Sydney (Australia).
  • Thomas Hornung, Cai-Nicolas Ziegler, Simon Franz, Martin Przyjaciel-Zablocki, Alexander Schätzle, Georg Lausen:
    Evaluating Hybrid Music Recommender Systems .pdf ]
    Proc. of the 12th IEEE/WIC/ACM International Conference on Web Intelligence(WI 2013). Atlanta, GA (USA).
  • Simon Franz, Thomas Hornung, Cai-Nicolas Ziegler, Martin Przyjaciel-Zablocki, Alexander Schätzle, Georg Lausen:
    On Weighted Hybrid Track Recommendations.pdf ]
    Proc. of the 13th International Conference on Web Engineering (ICWE 2013). Aalborg (Denmark).
  • Alexander Schätzle, Antony Neu, Georg Lausen, Martin Przyjaciel-Zablocki:
    Large-Scale Bisimulation of RDF Graphs.pdf ]
    Proc. of the Fifth Workshop on Semantic Web Information Management (SWIM 2013),
    in conjunction with the 2013 ACM International Conference on Management of Data (SIGMOD 2013). New York (USA).
  • Martin Przyjaciel-Zablocki, Alexander Schätzle, Thomas Hornung, Io Taxidou:
    Towards a SPARQL 1.1 Feature Benchmark on Real-World Social Network Data.pdf ]
    Proc. of the First International Workshop on Benchmarking RDF Systems (BeRSys 2013),
    co-located with the 10th Extended Semantic Web Conference (ESWC 2013). Montpellier (France).
  • Alexander Schätzle, Martin Przyjaciel-Zablocki, Christopher Dorner, Thomas Hornung, Georg Lausen:
    Cascading Map-Side Joins over HBase for Scalable Join Processing.pdf ]
    Proc. of the Joint Workshop on Scalable and High-Performance Semantic Web Systems (SSWS+HPCSW 2012),
    in conjunction with the International Semantic Web Conference (ISWC 2012). Boston (USA).
  • Martin Przyjaciel-Zablocki, Alexander Schätzle, Thomas Hornung, Christopher Dorner, Georg Lausen:
    Cascading Map-Side Joins over HBase for Scalable Join ProcessingTech. Report ]
    Computing Research Repository (CoRR), June 2012.
  • Martin Przyjaciel-Zablocki, Alexander Schätzle, Thomas Hornung, Georg Lausen:
    RDFPath: Path Query Processing on Large RDF Graphs with MapReduce (extended revised version).pdf ]
    The Semantic Web: ESWC 2011 Workshops, Revised Selected Papers, LNCS 7117, pp. 50–64, Springer, 2011.
  • Alexander Schätzle, Martin Przyjaciel-Zablocki, Georg Lausen:
    PigSPARQL: Mapping SPARQL to Pig Latin.pdf ]
    3rd International Workshop on Semantic Web Information Management (SWIM 2011),
    in conjunction with the 2011 ACM International Conference on Management of Data (SIGMOD 2011), June 2011. Athens (Greece).
  • Martin Przyjaciel-Zablocki, Alexander Schätzle, Thomas Hornung, Georg Lausen:
    RDFPath: Path Query Processing on Large RDF Graphs with MapReduce.pdf ]
    1st Workshop on High-Performance Computing for the Semantic Web (HPCSW 2011),
    collocated with 8th Extended Semantic Web Conference (ESWC 2011), June 2011. Heraklion (Greece).
  • Alexander Schätzle, Martin Przyjaciel-Zablocki, Thomas Hornung, Georg Lausen:
    PigSPARQL: Übersetzung von SPARQL nach PigLatin.pdf ]
    In Proc. 14th conference on Database Systems for Business, Technology and Web (BTW 2011),
    March 2011. Kaiserslautern (Germany).
  • Martin Przyjaciel-Zablocki:
    RDFPath: Verteilte Analyse von RDF-Graphen.pdf ]
    Master Thesis, September 2010. University of Freiburg (Germany)

Talks

  • TriAL-QL: Distributed Processing of Navigational Queries
    WebDB 2015, June 2015. Melbourne (Australia).
  • TriAL-QL: Distributed Processing of Navigational Queries
    AMW 2015, May 2015. Lima (Peru).
  • Map-Side Merge Joins for Scalable SPARQL BGP Processing
    IEEE CloudCom 2013, Dec 2013. Bristol (UK).
  • Recommending Software Apps in a B2B Context
    Web Intelligence 2013, Nov 2013. Atlanta, GA (USA).
  • Evaluating Hybrid Music Recommender Systems
    Web Intelligence 2013, Nov 2013. Atlanta, GA (USA).
  • Towards a SPARQL 1.1 Feature Benchmark on Real-World Social Network Data
    BeRSys 2013 2013, co-located with ESWC 2013, Nov 2013. Atlanta, GA (USA).
  • RDFPath: Path Query Processing on Large RDF Graphs with MapReduce [ .pdf ]
    HPCSW 2011, co-located with ESWC 2011, June 2011. Heraklion (Greece).
  • Handling Large RDF Graphs with MapReduce [ .pdf ]
    Semantic Rhine, October 2010. University of Freiburg (Germany).

Teaching